TWI790143B - High-pressure spray tank and valve mechanism for high-pressure spray tank - Google Patents

Abstract

The invention is a high-pressure spray tank, which comprises a tank body, a valve mechanism and two bead bodies. The valve mechanism includes a valve assembly and a switching seat. The valve assembly is sealed and fixed on the tank body and can communicate with the inside and outside of the tank. The top end of the switching seat is connected with the valve assembly, and includes two channels, a forward water inlet and a reverse water inlet. The two water suction ports are respectively connected to the two channels, and are respectively connected to the liquid agent outlet of the valve assembly through the two channels. The two beads are respectively arranged in the two channels so as to be movable, and can respectively control the connection or blockage of the forward spray suction port and the reverse spray suction port by moving. Using the inclined inner wall of the two channels, the two beads can move simultaneously, so that the liquid can be sprayed smoothly when the tank is in the forward spraying state, the reverse spraying state and the horizontal state without leakage of the propellant, and there will be no residual liquid left behind inside the tank.

Description

High-pressure spray tank and valve mechanism for high-pressure spray tank

The invention relates to a container capable of containing and spraying product liquid, especially a tank body that can spray liquid smoothly when used in the forward spraying state, backward spraying state and horizontal spraying state, and will not leak propellant.

In order to meet the needs of consumers in the modern terminal market, there are countless high-pressure spray can products innovatively developed by related companies and spanning various fields. Therefore, high-pressure spray can products have been widely used in people's daily life. For example, hair sprays, kitchen and bath cleaners, and insecticides in personal and household products; or carburetor cleaners, air fresheners, and paint sprays in automotive and industrial products; even police, Security personnel and women are used as pepper spray to protect their own safety, etc.

In the high-pressure spray tank used for spraying product liquid in the conventional technology, the top of the tank body has a tank mouth; the valve assembly is sealed and fixed on the tank mouth of the tank body; the head end of the suction pipe installed in the tank body communicates with the valve assembly, and The bending direction of the tail end of the slightly curved suction pipe is usually fixed on the same side as the nozzle opening of the nozzle on the top of the high-pressure spray tank, and the suction port at the end of the suction pipe is close to the corner where the tank body and the tank bottom are connected. Therefore, the suction port can be submerged and positioned in the liquid agent at the bottom of the tank; when the high-pressure spray tank is in use, the liquid agent and propellant (usually compressed gas, such as nitrogen N ₂ ) filled in the tank, the propellant The pressure built up in the body pushes the liquid into the straw and out of the nozzle of the spray head after passing through the valve assembly.

The key to the operation principle of high-pressure spray can products is that when the valve assembly and suction pipe are installed on the sealed tank body, the actual usable volume in the tank at this time, usually filled with liquid agent accounts for about 70%, and the propellant (such as nitrogen N2 ) accounts for about 30%, and this volume ratio can be almost all sprayed out after the tank product is used up; the propellant of nitrogen N2 in the tank is incompatible with the liquid, and the specific gravity of nitrogen N2 is higher than that of air Light, so the nitrogen N2 in the sealed tank is suspended on the liquid surface; further, the suction port at the end of the straw must be immersed in the liquid in the bottom of the tank, so that when the user presses the nozzle, the valve assembly will The valve stem is in an open state, and at the same time, the liquid liquid squeezed by the propellant will quickly flow to the valve assembly through the suction port at the end of the suction pipe and be sprayed out from the nozzle of the nozzle; on the contrary, if the suction port at the end of the suction pipe of the valve assembly If the user is not immersed in the liquid but exposed to the propellant, when the user presses the nozzle, the propellant will be released from the valve assembly quickly and the liquid cannot be sprayed out, resulting in residual liquid remaining in the tank Form waste. In other words, if the liquid agent capacity in the tank is only half or less, when the traditional high-pressure spray tank is used for reverse spraying, the top of the tank is facing the direction of the ground and the liquid agent also flows in the same direction, so the propellant is It is located above the liquid surface, and at the same time, the suction port at the end of the straw is exposed to the propellant, so when the user presses the nozzle, the liquid cannot enter the suction port at the end of the straw above, but the propellant quickly It enters the suction port and flows to the valve assembly to be sprayed out from the nozzle of the nozzle, so this is a shortcoming of the conventional high-pressure spray tank.

In order to solve the problem that traditional high-pressure spray cans cannot spray backwards, a side ball valve mechanism capable of spraying backwards has been developed in the high-pressure spray cans of the prior art. Please refer to Fig. 14 to Fig. 17, which are high-pressure spray cans using a side bead valve mechanism in the prior art. The side bead valve mechanism has a valve assembly 911 , a switching seat 912 , a suction pipe 92 , a reverse spray suction port 93 , and a bead body 94 , and the suction pipe 92 has a forward spray suction port 921 .

As shown in Figure 14, when the tank body is used in the forward spray state, the beads 94 slide down and block the reverse spray suction port 93, and the positive spray suction port 921 of the suction pipe 92 can be immersed in the liquid in the tank. In agent A, when the user presses the nozzle 98, the valve stem of the valve assembly 911 is in an open state, and the pressure formed by the propellant B in the tank can push the liquid agent A to flow into the positive spray suction port 921, and the liquid agent A is sequentially It is sprayed by the nozzle 981 of the spray head 98 after the forward spray channel 922 , the common channel 923 , the liquid agent inlet 924 , and the liquid agent outlet 925 .

As shown in Figure 15, when the hand-held high-pressure spray tank is used in the reverse spray state, the spray head 98 is facing the direction of the ground, so the liquid agent A also flows in the same direction, and at this time, the bead 94 is slid to the ground due to the gravitational force. direction and opened the reverse spray suction port 93, and the reverse spray suction port 93 is immersed in the liquid agent A; when the user presses the nozzle 98, the valve assembly 911 is opened, and the pressure formed by the propellant B in the tank can push the liquid agent A to flow into The reverse spray suction port 93, and the liquid agent A detours through the reverse spray channel 931 and is sprayed from the nozzle 981 of the spray head 98 through the common channel 923, the liquid agent inlet 924, and the liquid agent outlet 925 in sequence.

That is to say, the switch seat 912 of the side bead type valve mechanism is a side bead type switch seat 912 of single ball and single channel; 912 can achieve reverse spraying, but still has the following disadvantages:

First, please refer to Figure 14 and Figure 15 . When the hand-held high-pressure spray tank was used in the forward spraying state, the bead body 94 would slide down due to the gravitational force and block the reverse spray water suction port 93, so the forward spray water suction port 921 of the suction pipe 92 could be submerged in the normal spray state. In the liquid agent A, it is normally sprayed out, and the propellant B above the liquid level will not be released from the backspray water suction port 93; yet, when the high-pressure spray tank held by the hand is used in the backspray state, the bead body 94 faces The direction of the ground slides and the reverse spray suction port 93 is submerged in the liquid agent A, so that the liquid agent A can be successfully sprayed out from the nozzle 981 of the nozzle 98 in the backward spray state; at the same time, the forward spray suction port 921 of the suction pipe 92 is not submerged The liquid agent A is exposed to the propellant B located above the liquid surface, so the propellant B will also be sprayed instantly through the common channel 923 through the positive spray suction port 921 of the suction pipe 92 . In other words, although the side bead valve mechanism of the prior art can realize reverse spraying, since there is no element that can block the positive spray suction port 921 of the suction pipe 92 during reverse spraying, the propellant B is also leaking while reverse spraying Spray out and cause residual liquid in the tank to occur.

Second, please refer to Fig. 16, when the high-pressure spray can held by hand is used in a horizontal spraying state, at this time, because the wall surface supporting the bead 94 is horizontal, the bead 94 will not be fixed at the open or closed inverted position due to the gravitational force. The position of the spray suction port 93, on the contrary, moves indefinitely from side to side, causing the reverse spray suction port 93 to be opened sometimes or the reverse spray suction port 93 to be closed sometimes; 92, when the forward spray and suction port 921 and the reverse spray and suction port 93, when the user presses the spray nozzle 98 so that the valve stem of the valve assembly 911 is in an open state, the positive spray and suction port 921 of the suction pipe 92 is close to the tank body and the tank. The bottom is connected to the corner, so the positive spray suction port 921 of the suction pipe 92 can be immersed in the liquid agent A in the tank and spray out smoothly; Drift on the spray suction port 93 is indefinite, causing propellant B to be released intermittently by the reverse spray suction port 93 through the common passage 923, and at this time also due to the common passage 923 and the liquid flowing out from the forward spray suction port 921. The collision of agent A produces turbulent flow, which finally leads to the intermittent spraying of liquid agent A. At this time, propellant B leaks and sprays out from the backspray suction port 93 to form waste, and leads to the occurrence of residual liquid in the tank.

The 3rd, please refer to Fig. 17, when the high-pressure spray can held by hand is in the horizontal spraying state and the nozzle 98 continues to be tilted towards the ground, if the liquid agent A capacity in the tank is only half or less, the beads 94 Slide down and open backspray water suction port 93 by gravitational force. Because the amount of the liquid agent A in the tank is not enough at this moment, the forward spray water intake 921 of the spray suction port 93 and the suction pipe 92 cannot be submerged in the liquid agent A in the tank body, that is, the difference between the spray suction port 93 and the suction pipe 92 Both the forward spray and suction ports 921 may be exposed to the propellant B at the same time. When the user presses the spray head 98 and opens the valve assembly 911, the propellant B will instantly flow from the reverse spray and suction ports 93 and the forward spray and suction ports 921 of the suction pipe 92 simultaneously. Through the common channel 923, all of them are released instantly; and the remaining liquid agent A is retained in the tank.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a high-pressure spray tank and a valve mechanism for the high-pressure spray tank, which uses two beads to control the connection or resistance of the first water suction port and the second water suction port respectively. Break, and make the use of the forward spraying state and the use of the reverse spraying state will not leak the propellant. Moreover, using the design of the inclined inner wall of the two channels, the double beads can be quickly linked at the same time, so that when the tank is in a horizontal spraying state, the liquid can be sprayed smoothly and the propellant will not leak, and there will be no residual liquid. The case of staying in the tank occurs.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a valve mechanism for a high-pressure spray can, which is used to be arranged on a tank body and can communicate with the inside and outside of the tank body. An internal space and a tank opening; the valve mechanism for high-pressure spray tanks includes: a first reference direction, which is parallel to the axis of the tank and faces the top of the tank; a second reference direction, which is perpendicular to the first reference direction and faces radially outward of the tank; a third reference direction, which is parallel to the axis of the tank and towards the bottom of the tank; A valve assembly, which is sealed and fixed on the installation tank mouth of the tank body, the valve assembly has a liquid agent inlet and a liquid agent outlet, the liquid agent inlet is located in the inner space of the tank body, the liquid agent The outlet is located outside the tank; the liquid agent inlet is selectively connected to the liquid agent outlet; A switching seat, the top end of which engages the bottom end of the valve assembly and communicates with the valve assembly, which includes a first channel, which includes a first communication port, which is formed at one end of the first channel facing the first reference direction, and communicates with the liquid agent inlet; A first inclined inner wall surface, which is located on one side of the first channel in the second reference direction; the first inclined inner wall surface is inclined to the axis of the tank body, and extends from one end facing the first reference direction to the One end of the third reference direction extends obliquely toward the second reference direction; the first inclined inner wall surface is formed with Two first rib-shaped sliding rails extend along the first inclined inner wall and are spaced apart from each other, and are adjacent to both sides of the opening of the first water suction port; the first bead can roll against the two first On the convex rib-shaped slide rail, a height gap is formed between the first bead and the first inclined inner wall surface; a first water suction port, which communicates with the first channel, and communicates with the liquid agent inlet through the first communication port of the first channel; a second channel, which includes a second communication port, which is formed at one end of the second channel facing the third reference direction, and communicates with the liquid agent inlet; A second inclined inner wall surface, which is located on one side of the second channel in the second reference direction; the second inclined inner wall surface is inclined to the axis of the tank body, and extends from one end facing the third reference direction to the One end of the first reference direction extends obliquely toward the second reference direction; the second inclined inner wall surface is formed with Two second convex rib-shaped sliding rails extend along the second inclined inner wall and are spaced apart from each other, and are adjacent to both sides of the hole of the second water suction port; the second bead can roll against the two second On the convex rib-shaped slide rail, a height gap is formed between the second bead and the second inclined inner wall surface; a second water suction port, which communicates with the second channel, and communicates with the liquid agent inlet through the second communication port of the second channel; a first bead, which is movably arranged in the first channel, and selectively connects or blocks the first water suction port and the liquid agent inlet; a second bead, which is movably arranged in the second channel, and selectively connects or blocks the second water suction port and the liquid agent inlet; in, When the first reference direction is vertically upward, the first water suction port is connected to the liquid agent inlet, and the second bead blocks the second communication port, whereby the second bead blocks the second water suction port with the liquid agent inlet; When the first reference direction is vertically downward, the second water suction port is connected to the liquid agent inlet, and the first bead blocks the first communication port, whereby the first bead blocks the first the water suction port and the liquid agent inlet; When the second reference direction is vertically downward, the first bead abuts against the first inclined inner wall surface and stagnates at the lower end of the first inclined inner wall surface, whereby the first water suction port communicates with the The liquid agent inlet, and the second bead leans against the second inclined inner wall surface and stagnates at the lower end of the second inclined inner wall surface, whereby the second water suction port communicates with the liquid agent inlet.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a high-pressure spray tank, which includes: A tank body, which includes an internal space and a tank opening connected to each other; a spray head, which includes a nozzle; A valve mechanism for a high-pressure spray tank as described above, which is arranged on the tank body and can communicate with the inside and outside of the tank body; the first reference direction is parallel to the axis of the tank body; the valve assembly is The seal is fixed on the mouth of the installation tank and connected to the spray head, and the liquid agent outlet of the valve assembly is communicated with the nozzle of the spray head.

Further, the valve mechanism for high-pressure spray cans, wherein, the included angle between the first inclined inner wall surface and the first reference direction is 1 degree to 3 degrees; the second inclined inner wall surface and the third reference direction The angle between the directions is 1 degree to 3 degrees.

Further, in the valve mechanism for high-pressure spray cans, the included angle between the first inclined inner wall surface and the first reference direction is 1.5 degrees; the included angle between the second inclined inner wall surface and the third reference direction is 1.5 degrees.

Furthermore, in the valve mechanism for high-pressure spray cans, the switching seat further includes a body, and the body includes a common channel, which communicates with the liquid agent inlet, and the first communication port and the second communication port The two communication ports are connected to the liquid agent inlet through the common channel; a confluence partition is arranged in the common channel and located between the first communication port and the second communication port.

Furthermore, the valve mechanism for high-pressure spray cans, wherein the switching seat further includes a body, the first channel, the first water suction port, the second channel, and the second water suction port are formed on On the body; a first opening formed on the body and located at one end of the first channel facing the third reference direction, and the first bead can enter or leave the first channel through the first opening ; a first plug cap, which can detachably close the first opening; a second opening, which is formed on the body and is located at one end of the second channel facing the first reference direction, and the second bead A body can enter or escape from the second passage through the second opening; a second plug cap, which can detachably close the second opening; a third opening, which is formed on the side of the body facing the second reference direction, And communicated with the first communication port; a third plug cap, which can detachably close the third opening, and includes a third plug cap guide wall, which is interposed with the body to form a connection to the first water-absorbing A curved connecting channel between the mouth and the first channel; a fourth opening formed on the side of the body facing the second reference direction and communicating with the second communication port; a fourth plug cap capable of The fourth opening is separately closed, and a fourth plug cover guide wall is interposed with the main body to form a curved connection channel connected between the second communication port and the common channel.

Furthermore, the valve mechanism for high-pressure spray cans, wherein, the switch seat further includes a body, the first channel and the second channel are formed on the body; On the main body and extending towards the second reference direction; the second water suction port is formed at the end of the reverse spray extension pipe part located in the second reference direction.

Furthermore, the valve mechanism for high-pressure spray cans, wherein the switching seat further includes a body, the first channel and the second channel are formed on the body; It is on the body, communicates with the first water suction port, and extends toward the third reference direction.

Furthermore, in the valve mechanism for high-pressure spray cans, two first rib-shaped sliding rails are formed on the first inclined inner wall surface, which extend along the first inclined inner wall surface and are spaced apart from each other. , and adjacent to both sides of the opening of the first water suction port; the first bead can roll against the two first rib-shaped slide rails, whereby the gap between the first bead and the first inclined inner wall A height gap is formed, so that when the first bead moves on the inner wall of the first channel, the movement of the first bead is affected because the first bead is trapped in the hole of the first water inlet; the second inclination Two second convex rib-shaped sliding rails are formed on the inner wall, which extend along the second inclined inner wall and are spaced apart from each other, and are adjacent to both sides of the hole of the second water suction port; the second bead can roll against On the two second convex rib-shaped slide rails, a height gap is formed between the second bead and the second inclined inner wall, so that when the second bead moves on the inner wall of the second channel, The movement of the second bead is affected because the second bead is trapped in the hole of the second water inlet.

Furthermore, in the valve mechanism for high-pressure spray cans, the two first rib-shaped sliding rails are arc-shaped or polygonal in section perpendicular to the first reference direction; the two second The rib-shaped slide rail is arc-shaped or polygonal in cross-section perpendicular to the first reference direction.

Further, in the valve mechanism for high-pressure spray cans, the body of the switching seat includes a first opening formed on the body and located in the first channel facing the third reference direction One end of the first bead, and the first bead can enter or leave the first passage through the first opening; a first plug cap, which can be detachably arranged on the first opening, and stops the first bead from breaking away from the first passage The first passage; a first plug through hole is formed on the first plug, so that the first plug through hole in the tank can promote the liquid agent immersed in the first passage to withstand the same internal pressure. Smooth and unimpeded; the inner diameter of the through hole of the first plug cap is smaller than the outer diameter of the first bead; a second opening is formed on the body and is located at one end of the second channel facing the first reference direction , and the second bead can enter or leave the second passage through the second opening; a second plug cap can be detachably arranged on the second opening, and stop the second bead from breaking away from the second Passage; a second plug through hole is formed on the second plug, so that the second plug through hole in the tank can promote the liquid agent immersed in the second channel to withstand the same internal pressure and flow unimpeded ; The inner diameter of the through hole of the second plug cover is smaller than the outer diameter of the second bead.

Further, in the valve mechanism for high-pressure spray cans, a first plug support ball ring is formed on the back periphery of the through hole of the first plug cap, when the first bead slides down against the first plug A plug ball ring and thereby close the first plug hole; the top peripheral edge of the first channel is formed with a first channel ball ring, when the first bead slides against the first channel ball ring and thereby close the first communication port; especially the first bead has a gap against the periphery of the two first ball support rings, so it can promote the first bead to stagnate or break away from the top of the first passage Or the first plug can move smoothly; the back periphery of the second plug through hole forms a second plug ring, when the second bead slides against the second plug ring and Thereby closing the through hole of the second plug cover; the bottom peripheral edge of the second channel forms a second channel holding ball ring, when the second bead slides against the second channel holding ball ring and thereby closes the The second communication port; especially the second bead has a gap against the periphery of the two supporting ball rings, so it can impel the second bead to stagnate or break away from the bottom end of the second passage or the second plug cover. Move smoothly.

Further, the above-mentioned high-pressure spray tank, wherein, the valve mechanism for the high-pressure spray tank further includes a positive spray suction pipe, which is arranged on the switching seat and communicated with the first water suction port, and the positive spray suction pipe The tail end extends toward the second reference direction and toward the third reference direction to the bottom of the tank body.

Further, in the above-mentioned high-pressure spray tank, wherein the switching seat further includes a body, the first passage and the second passage are formed on the body; a positive spray extension pipe part is provided on the body, And communicate with the first water suction port, and extend toward the third reference direction; the positive spray suction pipe is combined with the positive spray extension pipe part.

Furthermore, the above-mentioned high-pressure spray tank, wherein, the valve mechanism for the high-pressure spray tank further includes a reverse spray suction pipe, which is arranged on the switching seat and communicated with the second water suction port, and the reverse spray suction pipe is L-shaped, and its tail end extends toward the second reference direction and toward the first reference direction to the top of the tank.

Further, in the above-mentioned high-pressure spray tank, wherein the switching seat further includes a body, the first channel and the second channel are formed on the body; a reverse spray extension tube is formed on the body, and extend toward the second reference direction; the second water suction port is formed at the end of the reverse spray extension pipe part in the second reference direction; a positioning rib is formed on the reverse spray extension pipe part; the reverse spray suction pipe includes A joint end, which is combined with the backspray extension tube; a positioning box, which is engaged with the positioning rib of the backspray extension tube.

The advantage of the present invention is that a switch seat is provided at the bottom of the valve assembly, the switch seat further includes two channels of the first channel and the second channel, and when the forward spray suction pipe is connected to the first water suction port and the reverse spray suction pipe is connected to the When the second water suction port is used, the forward spray suction port of the forward spray suction pipe and the reverse spray suction port of the reverse spray suction pipe can be connected to the liquid agent inlet of the valve assembly through the first channel and the second channel respectively, and then the first bead and the The second beads are respectively movably arranged in the first channel and the second channel, whereby the first beads and the second beads can respectively control the connection or blockage of the forward spray suction port and the backward spray water suction port. In this way, when the liquid agent capacity in the tank is only half or less, when the positive spraying state is used, the first bead will slide down under the influence of gravity, thereby making the positive spraying water inlet communicate with the The liquid agent inlet, and at this time, the spraying water inlet is immersed in the liquid agent A, and at the same time, the second bead is affected by the gravitational force and slides down and blocks the second communication port, thereby blocking the backward spraying water suction port and the liquid agent Inlet; and when the reverse spray state is used, the top of the tank is facing the ground direction. At this time, the second bead slides down under the influence of gravity, thereby making the reverse spray suction port communicate with the liquid agent inlet through the second communication port, and at this time the reverse spray The water suction port is submerged in the liquid agent A, and at the same time, the first bead slides down under the influence of gravity and blocks the first communication port so as to block the forward spraying water suction port and the liquid agent inlet. Therefore, no matter whether the present invention is used in the forward spraying state or in the reverse spraying state, there are beads that can block the water suction port that is not submerged in the liquid agent, so the present invention is compared with the valve assembly of the prior art or The valve mechanism, when used in the forward spraying state or the reverse spraying state, can spray the liquid agent and avoid the leakage of the propellant, so as to reduce the residual liquid and avoid waste.

In addition, when the tank is used in a horizontal spraying state and the liquid capacity in the tank is only half or less, the first inclined inner wall surface and the second inclined inner wall surface are inclined downward, so the first The bead will lean against the first inclined inner wall toward the bottom of the tank and quickly move towards the downward slope, so that the positive spray and suction port is connected to the liquid agent inlet. At the same time, the second bead will also lean against the tank top. The second inclined inner wall surface moves quickly to the downward inclined direction, so that the reverse spray suction port is connected to the liquid agent inlet; Because of the mutual interlocking, the body moves downward at the same time and promotes the opening of the two water suction ports, so that the two water suction ports of the forward spray and the reverse spray are both immersed in the liquid agent and can spray the liquid agent at the same time, without causing the two beads to be on the two sides. The fluid in the channel is indeterminate, sometimes open and sometimes close the two water suction ports, which disturb the flow direction of the liquid agent and cause the spray to be intermittent.

Furthermore, in the present invention, when the tank body is close to the horizontal state and tilted at a small angle between the horizontal states, the two water suction ports will be opened simultaneously to promote the overlapping of the ranges of the two pouring angles; The two inclined inner walls are inclined downwards towards the bottom of the tank and the top of the tank respectively, so that the two beads can move simultaneously and move in the two downward inclined directions. When the tank is approaching the horizontal state and the small angle When tilting, the two ends of the tank body tilt up and down slightly like a balance; During the transition from the horizontal state to the horizontal spray state, the first bead still stagnates toward the bottom of the tank and abuts against the lower end of the first inclined inner wall, and the positive spray suction port remains open, and At the same time, when the reverse spray suction port is in the positive spray state and continues to gradually change from the horizontal state to the horizontal spray state, the second bead moves towards the top of the tank and abuts against the relatively small part of the second inclined inner wall. At the low end, the reverse spray suction port is also open, so that the forward spray suction port and the reverse spray suction port are both open during the period when the tank body continues to gradually change from the horizontal state to the horizontal state, resulting in the forward spray and reverse spray. The two water suction ports are both immersed in the liquid agent and can spray the liquid agent at the same time. This is the so-called overlapping of the two pouring angle ranges where the two water suction ports are both open. Therefore, the present invention can quickly and accurately switch between the forward spraying state and the reverse spraying state. , and the horizontal injection state, and the key point is to ensure that the propellant will not leak out when switching between various use states and during various tilt state switches. This is not available in prior art valve assemblies or valve trains.

The technical means adopted by the present invention to achieve the intended invention purpose are further described below in conjunction with the drawings and preferred embodiments of the present invention.

Please refer to FIG. 1 and FIG. 2 , the first embodiment of the high-pressure spray tank of the present invention includes a tank body 10 , a spray head 20 , and a valve mechanism 30 . Wherein, the valve mechanism 30 includes a valve assembly 31 and a switching seat 32; wherein, the valve assembly 31 is sealed and fixed on a tank opening 12 of the tank body 10 and can communicate with the inside and outside of the tank body 10, and the switching seat 32 The top end is arranged at the bottom of the valve assembly 31 and communicates with the valve assembly 31 . Moreover, the spray head 20 includes a horizontal nozzle 21 , and the spray head 20 is installed on the top of the valve assembly 31 and communicates with the valve assembly 31 .

Please refer to FIG. 1 and FIG. 2 , the tank body 10 includes an inner space 11 , the aforementioned installation tank opening 12 , and a bottom wall 13 . The aforementioned tank body 10 is a hollow body and has an installation tank mouth 12 for installation; in the first embodiment, the preferred material of the tank body 10 is metal, and the installation tank mouth 12 is positioned at the top of the tank body 10; In the embodiment, the bottom of the tank body 10 has an arc-convex bottom wall 13, and the bottom wall 13 is recessed toward the inner space 11 of the tank body 10, whereby the tank body 10 can be positioned on the ground by the periphery of the bottom wall 13. stand.

Please further refer to FIG. 2 and FIG. 3 , the valve mechanism 30 is arranged on the tank body 10 and can communicate with the inside and outside of the tank body 10, and includes a first reference direction D1, a second reference direction D2, a third reference direction D3, The aforementioned valve assembly 31, the aforementioned switching seat 32, a first bead body 33, a second bead body 34, a forward spray suction pipe 35, and a reverse spray suction pipe 36. The first reference direction D1 is parallel to the axis of the tank body 10 and faces the top of the tank body 10 . The second reference direction D2 is perpendicular to the first reference direction D1 and faces radially outward of the tank body 10 . The third reference direction D3 is parallel to the axis of the tank body 10 and faces the bottom of the tank body 10 .

Please refer to Fig. 1, Fig. 2, and Fig. 3, the aforementioned valve assembly 31 has a liquid agent inlet 315 and a liquid agent outlet 316, the liquid agent inlet 315 is located in the inner space 11 of the tank body 10, and the liquid agent outlet 316 is located in the tank body 10 Outside; the liquid agent inlet 315 is selectively connected to the liquid agent outlet 316 . Specifically, as shown in Figure 1, Figure 2, and Figure 3, the valve assembly 31 includes a valve seat 314, a valve stem 312 and a fixed cover 311 (specifically a metal fixed cover), and the valve seat 314 is located at the bottom of the fixed cover 311 , the fixed cover 311 is sealed and fixed on the installation tank mouth 12 of the tank body 10, the liquid agent inlet 315 is formed at the bottom end of the valve seat 314; the valve stem 312 is a pipe body, and a horizontal hole is provided on the valve stem 312 3121; its bottom end is located in the valve seat 314, the top of the valve stem 312 penetrates and protrudes from the central hole at the bottom of the fixed cover 311, and the top of the valve stem 312 is provided with a liquid agent outlet 316; further, The liquid agent A can communicate with the liquid agent outlet 316 through the common channel 325 of the valve assembly 31, the liquid agent inlet 315 and the cross hole 3121 of the valve stem 312; furthermore, there is a spray head 20 in the first embodiment, and the spray head 20 is a high-pressure spray tank Ancillary products; usually the nozzle 20 is installed on the liquid agent outlet 316 at the top of the valve stem 312, and the nozzle 21 of the nozzle 20 and the liquid agent outlet 316 of the valve stem 312 can be connected, so when the user presses down the nozzle 20 , the inner hole of the valve stem sealing ring 313 will immediately break away from the horizontal hole 3121 of the valve stem 312, then the valve assembly 31 is in an open state and can spray out the liquid agent A in the tank; usually the nozzle 20 is in the direction of the horizontal nozzle opening 21 , is to be fixedly set to the same side as the positive spraying water inlet 322 of the positive spraying suction pipe 35 that is slightly curved. Since the valve assembly 31 is an existing standard assembly, its detailed structure will not be further described in detail. The specification of the valve assembly 31 in the first embodiment is 1 inch; please refer to the components shown in Fig. 1, that is, the conventional standard valve assembly 31 includes a valve stem 312, a valve stem sealing ring 313, a fixed cover 311, and a fixed cover sealing ring 3111, valve seat 314, a spring 3112 and a positive spray suction pipe 35 and other seven parts constitute.

Please refer to Fig. 1, Fig. 3, and Fig. 9, the aforementioned switching seat 32 includes a body 32A, and the body 32A further includes a first channel 321, a first water suction port 322B, a second channel 323, and a second water suction port 324B, a common channel 325, a confluence partition 326, a first opening 327, a first plug cover 328, a second opening 329, a second plug cover 330, a third opening 32B, a third plug cover 32C, a fourth opening 32D, a fourth plug cap 32E, a reverse spray extension tube portion 36A and a forward spray extension tube portion 35A. Among them, the first passage 321, the first suction port 322B, the second passage 323, the second suction port 324B, the common passage 325, the confluence partition 326, the first opening 327, the second opening 329, the third opening 32B, The fourth opening 32D and the reverse spray extension pipe portion 36A are all formed in the main body 32A, while the first plug cap 328, the second plug cap 330, the third plug cap 32C, the fourth plug cap 32E and the forward spray extension pipe portion 35A are connected to the main body 32A. The body 32A is a separate and independent element from each other.

Please refer to FIG. 2, FIG. 3, and FIG. 6. Further, the top end of the switching seat 32 is arranged on the bottom end of the valve assembly 31 and communicates with the valve assembly 31. The switching seat 32 includes a first channel 321 and a second channel. 323, and the first horizontal line and the second horizontal line. Among them, the first horizontal line is marked in the first channel 321, and this first horizontal line is only for reference in this creation when the tank body is in a horizontal state, compared with the first inclined inner wall surface 3212 to form a virtual angle; the second horizontal line is its Marked in the second channel 323, the second horizontal line is only for reference in this invention when the tank body is in a horizontal state, compared with the second inclined inner wall surface 3232 to form a virtual angle.

Please refer to FIG. 2 and FIG. 3 , on the body 32A, the first channel 321 includes a first communication opening 3211 and a first inclined inner wall surface 3212 . The first communication port 3211 is formed at one end of the first channel 321 facing the first reference direction D1 and communicates with the liquid agent inlet 315 . The first inclined inner wall surface 3212 is located on one side of the first channel 321 in the second reference direction D2, the first inclined inner wall surface 3212 is inclined to the axis of the tank body 10, and is directed toward one end of the first reference direction D1 (here is the starting point, i.e. the direction of the top of the tank body) to one end towards the third reference direction D3 (this is the end point, i.e. the direction of the bottom end of the tank body) and extends obliquely towards the second reference direction D2; The inner wall surface 3212 is located on the left side of the first channel 321 and is inclined to the axis of the tank body 10 , and is inclined to the left from top to bottom. In other words, as shown in FIG. 6, since the first inclined inner wall surface 3212 is formed on one side of the first passage 321 in the second reference direction D2, when the tank body is in a horizontal state, the first inclined inner wall surface 3212 is in the first direction. The lower edge of the horizontal line is an angled slope towards the bottom of the tank. Specifically, in this example, the included angle θ between the first inclined inner wall surface 3212 and the first reference direction D1 can be 1 degree to 3 degrees, and is preferably 1.5 degrees, but in other embodiments, the angle is different from the aforementioned limit.

Please refer to FIG. 3 , the first water suction port 322B is formed at the bottom of the body 32A and communicates with the first passage 321 , and communicates with the liquid agent inlet 315 through the first communication port 3211 of the first passage 321 .

Referring to FIG. 3 , the forward spray extension pipe portion 35A is disposed on the main body 32A, communicates with the first water suction port 322B, and extends toward the third reference direction D3. The front jet suction pipe 35 is coupled to the front jet extension pipe portion 35A.

Please refer to FIG. 2 and FIG. 3 , on the body 32A, the second channel 323 includes a second communication port 3231 and a second inclined inner wall 3232 . The second communication port 3231 is formed at one end of the second channel 323 facing the third reference direction D3 and communicates with the liquid agent inlet 315 . The second inclined inner wall surface 3232 is located on one side of the second channel 323 in the second reference direction D2, the second inclined inner wall surface 3232 is inclined to the axis of the tank body 10, and is directed toward one end of the third reference direction D3 (this is The starting point, that is, the direction of the bottom end of the tank) to one end toward the first reference direction D1 (this is the end point, that is, the direction of the top end of the tank) extends obliquely toward the second reference direction D2; that is to say, in the second inclination in the figure The wall 3232 is located on the left side of the second channel 323 and is inclined to the axis of the tank body 10 , and is inclined from bottom to top to the left. In other words, as shown in Figure 6, since the second inclined inner wall surface 3232 is formed on one side of the second passage 323 in the second reference direction D2, when the tank body is in a horizontal state, the second inclined inner wall surface 3232 is on the second side of the second reference direction D2. The lower edge of the horizontal line is an angled slope towards the tank roof. Specifically, in this example, the included angle θ between the second inclined inner wall surface 3232 and the third reference direction D3 can be 1 degree to 3 degrees, and is preferably 1.5 degrees, but in other embodiments, the angle is not the same as the aforementioned limit, and the inclination of the second inclined inner wall surface 3232 and the inclination of the first inclined inner wall surface 3212 may be different.

Please refer to FIG. 9 , in the first embodiment, the switch base 32 further includes a spray extension tube portion 36A directly formed on the main body 32A, and extends toward the second reference direction D2 to be close to the inner wall of the tank body 10 . Wherein, the aforementioned second water suction port 324B is formed at the end of the backspray extension pipe portion 36A located in the second reference direction D2, that is to say, the second water suction port 324B is formed at the tail hole of the backspray extension pipe portion 36A, and It communicates with the second channel 323 , and then communicates with the liquid agent inlet 315 through the second communication port 3231 of the second channel 323 . Moreover, a positioning rib 363 is formed on the spray extension tube portion 36A.

Please refer to FIG. 1 , FIG. 3 , FIG. 9 and FIG. 9A , a positioning box 361 and a joint end 362 are provided on the spray nozzle 36 . Wherein, the joint between the positioning box 361 and the positioning rib 363 of the backspray extension pipe portion 36A is used for direction positioning, and the joint end 362 is connected to the second water suction port 324B and the second communication port 3231 . Specifically, when the reverse spray suction pipe 36 is combined with the reverse spray extension pipe portion 36A, the joint end 362 is penetrated and combined in the reverse spray extension pipe portion 36A, and since the joint end 362 and the reverse spray extension pipe portion 36A are two The circular tubes are butted, so in order to make the L-shaped reverse spray suction pipe 36 face upward, the positioning box 361 is designed to engage with the positioning rib 363 when the reverse spray suction pipe 36 is combined with the reverse spray extension pipe part 36A. This achieves the effect of orientation positioning.

Please refer to FIG. 3 , on the body 32A, the common channel 325 communicates with the liquid agent inlet 315 , and the first communication port 3211 and the second communication port 3231 communicate with the liquid agent inlet 315 through the common channel 325 . The confluence separator 326 is disposed in the common channel 325 and between the first communication port 3211 and the second communication port 3231 . The confluence partition plate 326 and the common channel 325 can produce a stable confluence effect when the liquid agent A enters from the first water suction port 322B and the second water suction port 324B at the same time, avoiding the collision of the liquid agent A in the two flow directions to cause turbulence and affect the normal injection , but in other embodiments there may be no common channel 325 and bus partition 326 .

2 and 3, on the body 32A, the first opening 327 is formed at one end of the first channel 321 facing the third reference direction D3, and the first bead 33 can enter or leave the first opening 327. Channel 321. The first plug cap 328 can detachably close the first opening 327 , thereby supporting the first bead 33 so as not to escape from the first channel 321 . The second opening 329 is formed at one end of the second channel 323 facing the first reference direction D1 , and the second bead 34 can enter or leave the second channel 323 through the second opening 329 . The second plug cover 330 is detachably disposed on the second opening 329 , thereby supporting the second bead 34 so as not to be separated from the second channel 323 . The preferred material of the beads is stainless steel.

Referring to FIG. 3 and FIG. 9 , on the body 32A, the third opening 32B is formed on the side of the body 32A facing the second reference direction D2 and communicates with the first communication port 3211 . The third plug cover 32C can detachably close the third opening 32B, and includes a third plug cover guiding wall 32C1. When the third plug cover 32C closes the third opening 32B, the third plug cover guide wall 32C1 and the main body 32A can interpose to form a curved connection channel connected between the first water suction port 322B and the first channel 321 . The fourth opening 32D is formed on one side of the main body 32A facing the second reference direction D2 and communicates with the second communication port 3231 . The fourth plug cover 32E can detachably close the fourth opening 32D, and includes a fourth plug cover guiding wall 32E1. When the fourth plug cover 32E closes the fourth opening 32D, the fourth plug cover guide wall 32E1 and the main body 32A can interpose to form a curved connection channel connected between the second communication port 3231 and the common channel 325 . In other words, the third opening 32B is formed between the top of the first water suction port 322B and the first channel 321 , and the fourth opening 32D is formed between the second communication port 3231 and the common channel 325 . The third plug cover 32C and the fourth plug cover 32E are combined at intervals; the third plug cover 32C can separately close the third opening 32B, thereby supporting the passage between the top of the first water suction port 322B leading to the first passage 321 The purpose of bending around: the fourth plug cover 32E can separately close the fourth opening 32D, thereby supporting the purpose of the second communication port 3231 leading to the channel between the common channels 325 to bend around.

In addition, please refer to FIG. 1 , in the first embodiment, the forward spray extension tube portion 35A and the first plug cap 328 are combined at intervals, but in other embodiments, it is not limited thereto.

In particular, please refer to Fig. 1, Fig. 3 and Fig. 4, the main body 32A is one of the components forming the switching seat 32 (as described in [0034]), so when the main body 32A has not been combined with the forward spray suction pipe 35 and the reverse spray suction pipe 36 At the time, the two suction ports on the main body 32A are respectively defined as the first water suction port 322B and the second water suction port 324B; and when in actual use, that is, after the body 32A is combined with the forward spray suction pipe 35 and the reverse spray suction pipe 36, at this time, the The tail end opening of the spray suction pipe 35 is defined as a forward spray water suction port 322 , and the tail end opening of the L-shaped backward spray suction pipe 36 is defined as a reverse spray water suction port 324 .

Please refer to FIG. 3 , in the first embodiment of the present invention, the first bead 33 is movably disposed in the first channel 321 , and selectively connects or blocks the positive spraying water inlet 322 and the liquid agent inlet 315 . The second bead 34 is movably disposed in the second channel 323 , and selectively connects or blocks the backspray suction port 324 and the liquid agent inlet 315 . Wherein, please refer to Fig. 4, when the high-pressure spray tank held by hand is used in the forward spraying, the first bead 33 is subjected to the gravitational force and slides on the first plug cover 328, impelling the positive spraying suction port 322 of the positive spraying suction pipe 35 to be submerged In the liquid agent A, it is connected to the liquid agent inlet 315 through the first communication port 3211, and at the same time, the second bead 34 is also affected by the gravitational force and slides down and blocks the second communication port 3231, thereby blocking the backspray suction port 324 and the liquid agent inlet 315; please refer to Fig. 5, when the high-pressure spray tank is used for reverse spraying, the second bead 34 will slide down on the second plug cover 330 due to the gravitational force, and the backward spray suction port 324 of the reverse spray suction pipe 36 will be prompted Immersed in the liquid agent A and communicated with the liquid agent inlet 315 through the second communication port 3231, and at the same time, the first bead 33 also slides down due to the action of gravity and blocks the first communication port 3211, thereby blocking the positive spray and suction port 322 and the liquid agent inlet 315; please refer to Figure 6, when the high-pressure spray tank is used for horizontal spraying, the first bead 33 is moved against the first inclined inner wall surface 3212 by gravity and rolls down toward the bottom of the tank, And finally stagnate and lean against the lower end of the first inclined inner wall surface 3212, whereby the positive spray suction port 322 of the positive spray suction pipe 35 is immersed in the liquid agent A and communicates with the liquid agent inlet 315 through the first communication port 3211 , and at the same time, the second bead 34 is also moved against the second inclined inner wall surface 3232 by the gravitational force and rolls down toward the top of the tank, and finally stagnates and leans against the lower end of the second inclined inner wall surface 3232, Accordingly, the reverse spray suction port 324 of the reverse spray suction pipe 36 is immersed in the liquid agent A and communicates with the liquid agent inlet 315 through the second communication port 3231 .

Please refer to Fig. 3, Fig. 4 and Fig. 5, in the first embodiment of the present invention, on the main body 32A, the head end of the positive spray suction pipe 35 is connected with the first water suction port 322B of the main body 32A through the positive spray extension pipe part 35A and It is connected to the first communication port 3211, and the bending direction of the slightly curved positive spraying and suction pipe 35 is fixedly installed on the same side as the nozzle 21 of the shower head 20, and the positive spraying and suction port 322 of the positive spraying and suction pipe 35 is It extends towards the third reference direction D3 and is close to the corner where the tank body and the bottom of the tank are connected, so when using in the forward spraying state, the positive spray suction port 322 of the positive spray suction pipe 35 can be submerged and positioned in the liquid agent A in the bottom of the tank; In the first embodiment of the present invention, the backspray suction pipe 36 is L-shaped, and the joint end 362 of the backspray suction pipe 36 is engaged with the backspray suction port 324B of the body 32A and communicated with the second communication port 3231, while the backspray suction pipe The backspray suction port 324 of 36 extends to the top of the tank body 10 toward the second reference direction D2 and toward the first reference direction D1, so when used in the reverse spray state, the backspray suction port 324 of the backspray suction pipe 36 can be submerged And positioned in the liquid agent A in the top of the tank. But it is not limited to this, the forward spray suction port 322 of the forward spray suction pipe 35 can also be straight towards the third reference direction D3, and the reverse spray suction port 324 of the reverse spray suction pipe 36 can also be not toward the top of the tank body 10 but toward the top of the tank body 10. The second reference direction D2.

More specifically, the present invention is roughly divided into five states when used, as described below.

First, the positive spraying state. Please refer to Fig. 4, when the tank body 10 is used in the forward spraying state, the first bead 33 is located at the bottom of the first channel 321 so that the forward spraying water inlet 322 is connected to the liquid agent inlet 315 through the first communication port 3211, and at the same time the second The second bead 34 also slides down on the bottom of the second channel 323 and blocks the second communication port 3231 so as to block the reverse spray suction port 324 and the liquid agent inlet 315, and at this time, the forward spray water suction port 322 is immersed in the liquid agent In A, the backspray suction port 324 is exposed to propellant B. Therefore, when the spray head 20 is pressed, the liquid agent A enters the liquid agent inlet 315 through the forward spray suction port 322, the first channel 321, the first communication port 3211 and the common channel 325 in sequence, and then the liquid agent A in the tank can be sprayed out. At this time, because the second bead 34 blocks the backspray suction port 324 and the liquid agent inlet 315, even if the backspray suction port 324 of the backspray suction pipe 36 is exposed to the propellant B, the propellant B will not be released from the nozzle 21. leak out.

Second, the backspray state, please refer to Figure 5, when the tank body 10 is used in the backspray state, the second bead 34 is located at the bottom end of the second channel 323 so that the backspray suction port 324 communicates with the second communication port 3231 Liquid agent inlet 315, and at the same time, the first bead 33 also slides down on the bottom end of the first channel 321 and blocks the first communication port 3211 so as to block the positive spraying water inlet 322 and the liquid agent inlet 315, and at this time, pour The spray water suction port 324 is immersed in the liquid agent A, while the forward spray water suction port 322 is exposed to the propellant B, so when the nozzle 20 is pressed, the liquid liquid A passes through the reverse spray water suction port 324, the second channel 323, After the second communication port 3231 and the common channel 325 enter the liquid agent inlet 315, the liquid agent A in the tank can be sprayed out. At this time, because the first bead 33 blocks the positive spray suction port 322 and the liquid agent inlet 315, even if the positive spray suction port 322 of the positive spray suction pipe 35 is exposed to the propellant B, the propellant B will not be released from the nozzle 21. leak out.

Third, the flat spray state. Please refer to Fig. 6, when the tank body 10 is in a horizontal spray state, because the first inclined inner wall surface 3212 is formed on the lower edge of the first horizontal line, and has an inclined angle θ of 1.5 degrees toward the bottom of the tank, while the second inclined inner wall surface 3232 It is formed on the lower edge of the second horizontal line, and has an angle θ of 1.5 degrees toward the top of the tank. Therefore, when the capacity of liquid agent A in the tank is only half or less, when the user holds the tank body 10 and uses it in a 100% horizontal spraying state, the first inclined inner wall surface 3212 and the second inclined inner wall surface 3232 It is inclined downward, so the first bead 33 will abut against the first inclined inner wall surface 3212 and roll rapidly toward the bottom of the tank and be positioned at the lower end of the inclination, so that the positive spray and suction port 322 is communicated with the liquid agent inlet 315, and At the same time, the second bead 34 will also lean against the second inclined inner wall surface 3232 and move rapidly toward the tank top and be positioned at the lower end of the inclination, so that the backspray suction port 324 is communicated with the liquid agent inlet 315; that is, When the spraying state is 100% horizontal, because of the design of the first inclined inner wall surface 3212 and the second inclined inner wall surface 3232, the first bead 33 and the second bead 34 will move downward in an inclined direction at the same time due to mutual linkage. The lower ends of the two inclinations make the forward spray suction port 322 and the reverse spray suction port 324 both open, and the liquid agent A enters the liquid agent through the two water suction ports through the two channels, the two communication ports and the common channel 325 in sequence The inlet 315 can spray out the liquid agent A in the tank at the same time. Even when the tank body 10 is used to the end, both the liquid agent A and the propellant B in the tank may be completely used up without any waste.

Fourth, when the tank body is spraying horizontally and the spray head 20 continues to tilt downward. Please refer to FIG. 7 , because the second inclined inner wall surface 3232 is formed on the lower edge of the second horizontal line, and forms an included angle θ of 1.5 degrees toward the tank top. Therefore, when the capacity of liquid agent A in the tank is only half or less, the user holds the tank body 10 in the state of spraying and the top of the tank continues to incline at a small angle towards the ground until it approaches the horizontal line at 1.5 degrees or greater than 1.5 degrees. When the included angle θ is 1.5°, the second inclined inner wall surface 3232, which originally formed an included angle θ of 1.5°, is almost parallel to the second horizontal line or the top of the tank is inclined more toward the ground, because the second bead 34 abuts against the second The inclined inner wall surface 3232, so that the second bead 34 moves rapidly towards the top of the tank and is positioned at the lower end of the inclination, so that the reverse spray suction port 324 is immersed in the liquid agent A and communicated with the liquid agent inlet 315; and at the same time, the first The bead body 33 has also moved towards the top of the tank and blocks the first communication port 3211 so as to block the communication between the forward spray suction port 322 and the liquid agent inlet 315; , and the forward spray suction port 322 is exposed to the propellant B, so when the nozzle 20 is pressed, the liquid agent A passes through the reverse spray suction port 324, the second channel 323, the second communication port 3231, and the common channel 325 in sequence Entering the liquid agent inlet 315, the liquid agent A in the tank can be sprayed out. At this time, since the first bead 33 blocks the positive spraying water inlet 322 from communicating with the liquid agent inlet 315, even if the positive spraying water suction port 322 is exposed to the propellant B , the propellant B will not leak out from the nozzle 21 as a result.

Fifth, when the tank body is spraying horizontally and the spray head 20 continues to tilt upward. Please refer to FIG. 8 , because the first inclined inner wall surface 3212 is formed on the lower edge of the first horizontal line and forms an included angle θ of 1.5 degrees towards the bottom of the tank. Therefore, when the capacity of liquid agent A in the tank is only half or less, the user holds the tank body 10 in the reverse spraying state and the top of the tank continues to incline at a small angle in the opposite direction to the ground until it is close to the horizontal line and the bottom edge is 1.5 degrees or less. When the included angle θ is 1.5 degrees, the first inclined inner wall surface 3212, which was originally at an included angle θ of 1.5 degrees, is almost parallel to the first horizontal line or the tank roof is inclined in the opposite direction to the ground, because the first bead 33 abuts against the The first inclined inner wall surface 3212, so that the first bead 33 moves rapidly towards the bottom of the tank and is positioned at the lower end of the inclination, so that the positive spray and suction port 322 is immersed in the liquid agent A and communicated with the liquid agent inlet 315; and at the same time The second bead 34 has also moved towards the bottom of the tank and blocks the second communication port 3231 so as to block the communication between the reverse spray suction port 324 and the liquid agent inlet 315; , and the reverse spray suction port 324 is exposed to the propellant B, so when the nozzle 20 is pressed, the liquid agent A passes through the forward spray suction port 322, the first channel 321, the first communication port 3211, and the common channel in sequence After entering the liquid agent inlet 315 after 325, the liquid agent A in the tank can be sprayed out. At this time, because the second bead body 34 blocks the backspray water suction port 324 from communicating with the liquid agent inlet 315, even if the backspray water suction port 324 is exposed to the propellant In B, the propellant B cannot thus escape from the nozzle 21 .

To sum up, although there are five states according to the arrangement of the tank body 10, in fact there are only three states for the movement and operation of the first bead body 33 and the second bead body 34, that is, the first bead body 33 is opened and closed. Spray suction port 322 and at the same time the second bead body 34 blocks the reverse spray water suction port 324, the second bead body 34 opens the reverse spray water suction port 324 and simultaneously the first bead body 33 blocks the forward spray water suction port 322, and the first bead body 33 and the second bead 34 open the forward spray water intake 322 and the reverse spray water intake 324 at the same time, and these three operating states are horizontal when the tank body is sprayed and the nozzle 20 continues to tilt downward (as shown in Figure 7) and the tank body is horizontal When spraying and the nozzle 20 continues to tilt upwards (Fig. 8), when the specific angle changes rapidly, it also impels the first bead 33 and the second bead 34 to move and position quickly, so that the positive spraying water inlet 322 and the inverted If the spray and suction port 324 is not immersed in the liquid agent A, it is blocked by the first bead 33 or the second bead 34, so the present invention can achieve the effect of quickly switching and using different operating states, so that even if the user is in the When the tank body 10 is moved and used in a dynamic manner, there is no need to worry about the intermittent state of the injection or the leakage of the propellant B, which will affect the function of the product.

Please refer to FIG. 10 to FIG. 13 , the structure of the second embodiment of the present invention is basically the same as that of the first embodiment, and also passes through the first inclined inner wall surface in the first channel 321F and the second channel 323F of the body 32F of the switching seat 32 3212F and the second inclined inner wall surface 3232F cooperate with the first bead 33F and the second bead 34F to achieve the effect of quickly switching between the above-mentioned forward spraying state, reverse spraying state and flat spraying state without leaking the propellant B, and The difference between the second embodiment and the first embodiment is explained below.

In the second embodiment, two first rib-shaped sliding rails 3213F are formed on the first inclined inner wall surface 3212F, and two second rib-shaped sliding rails 3233F are formed on the second inclined inner wall surface 3232F. The two first rib-shaped sliding rails 3213F extend along the first inclined inner wall surface 3212F and are spaced apart from each other, and are adjacent to two sides of the opening of the first water suction opening 322B. The first bead 33F can roll against the two first rib-shaped sliding rails 3213F, thereby forming a height gap between the first bead 33F and the first inclined inner wall surface 3212F. The two second rib-shaped slide rails 3233F extend along the second inclined inner wall surface 3232F and are spaced apart from each other, and are adjacent to two sides of the second water suction port 324B. The second bead 34F can roll against the two second rib-shaped sliding rails 3233F, whereby a height gap is formed between the second bead 34F and the second inclined inner wall surface 3232F.

Moreover, the inner diameter of the first channel 321F is larger than the diameter of the first bead 33F, and the inner diameter of the second channel 323F is larger than the diameter of the second bead 34F. That is to say, when the first bead 33F rolls in the first channel 321F and the second bead 34F rolls in the second channel 323F, the peripheries of the two beads 33F, 34F are all formed with gaps in the two channels 321F, 323F. This can prevent the first bead 33F and the second bead 34F from rolling in the first channel 321F and the second channel 323F due to the liquid agent A sticking to the surface of the first bead 33F and the second bead 34F. resistance, so that the two beads 33F, 34F can switch between different injection states more quickly and accurately.

In addition, the first rib-shaped sliding rail 3213F and the second rib-shaped sliding rail 3233F are arc-shaped or polygonal in cross section perpendicular to the first reference direction D1. Specifically, in the second embodiment, the first rib-shaped slide rail 3213F and the second rib-shaped slide rail 3233F are arc-shaped, and may be a part of a circle or an ellipse. However, in other embodiments, the first rib-shaped sliding rail 3213F and the second rib-shaped sliding rail 3233F may also be triangular or rectangular.

Please refer to FIG. 10 to FIG. 13 , in the second embodiment, the first plug cover 328F of the body 32F of the switch seat 32 is detachably arranged on the first opening 327F, and the stopper first bead 33F is detached from the first opening 327F. channel 321F, and a first plug cap through hole 3281F is formed on the first plug cap 328F, the inner diameter of the first plug cap through hole 3281F is smaller than the outer diameter of the first bead 33F; and the second plug cap 330F is detachable It is arranged on the second opening 329F, and stops the second bead 34F from the second channel 323F. A second plug through hole 3301F is formed on the second plug 330F. The inner diameter of the second plug through hole 3301F is smaller than that of the first plug. The outer diameter of the second bead 34F. That is to say, in the second embodiment, the first plug cover 328F and the second plug cover 330F do not close the first opening 327F and the second opening 329F, but are only provided as stops on the first opening 327F and the second opening 329F. The first bead 33F and the second bead 34F are used to prevent separation. Through the first plug hole 3281F and the second plug hole 3301F, the liquid agent A can be promoted to flow inside and outside the two channels 321F, 323F, especially when the tank body 10 is in a horizontal state and the two channel ports 321F, 323F are immersed in the During liquid preparation A, if there is no through hole because of the two plug covers 328F, 330F, then when the two beads 33F, 34F lean against the backs of the two plug covers 328F, 330F, water tension will be generated, causing the two beads 33F, 34F to If they are sucked on the back of the two plugs 328F and 330F, when the tank body 10 is in a horizontal state and the nozzle 20 continues to tilt up or down for use, the two beads 33F and 34F will be sucked on the two plugs. Cover 328F, 330F on the back, so it can not roll or slide normally and immediately and affect the function of the product. Therefore, due to the design of the two through-holes 3281F and 3301F, the switching between the different injection states of the first bead 33F and the second bead 34F can be made more quickly and accurately.

In addition, in the second embodiment, a first plug support ball ring 3282F is formed on the back periphery of the first plug through hole 3281F. When the first bead 33F slides down against the first plug support ring 3282F and This closes the first plug through hole 3281F. A first channel holding ring 3214F is formed on the top peripheral edge of the first channel 321F. When the first bead 33F slides and abuts against the first channel holding ring 3214F, thereby closing the first communication port 3211F. In particular, the first bead 33F abuts against the two first ball support rings 3282F, 3214F and there are gaps around the periphery, so that the first bead 33F can be stagnated or separated from the top of the first channel 321F or the first plug cover 328F. Moves smoothly. A second plug support ball ring 3302F is formed on the back periphery of the second plug through hole 3301F. When the second bead 34F slides down against the second plug support ball ring 3302F and thereby closes the second plug through hole 3301F . A second channel ring 3234F is formed on the bottom peripheral edge of the second channel 323F. When the second bead 34F slides and abuts against the second channel ring 3234F, the second communication port 3231F is closed. In particular, the second bead body 34F has a gap against the periphery of the two supporting ball rings 3302F, 3234F, so that the second bead body 34F can be stagnated or disengaged from the bottom end of the second channel 323F or the second plug cover 330F. Moves smoothly.

The advantage of the present invention is that, please refer to Fig. 4 and Fig. 5, two passages of the first passage 321 and the second passage 323 are set, and the forward spraying water inlet 322 and the reverse spraying water inlet 324 are respectively passed through the first passage 321 and the second passageway 321. The passage 323 communicates with the liquid agent inlet 315 of the valve assembly 31, and the first bead 33 and the second bead 34 are respectively movably arranged in the first passage 321 and the second passage 323, whereby the first bead 33 and the second bead 34 can respectively control the connection or blockage of the forward spray water suction port 322 and the reverse spray water suction port 324. In this way, when in the forward spraying state, the first bead 33 is affected by the gravitational force and slides down so that the positive spraying water suction port 322 is connected to the liquid agent inlet 315, and at the same time the second bead 34 is also affected by the gravitational force and slides down to block the first bead. The two communication ports 3231 thereby block the backspray suction port 324 and the liquid agent inlet 315; and when the reverse spray state, the second bead 34 slides down under the influence of gravity so that the backspray water suction port 324 communicates with the liquid agent inlet 315, And at the same time, the first bead 33 is also affected by the gravitational force and slides down to block the first communication port 3211 so as to block the forward water injection and suction port 322 and the liquid agent inlet 315 . Therefore, no matter whether the present invention is in the forward spraying state or in the reverse spraying state, there are beads that can block the water suction port that is not submerged in the liquid agent A, so the present invention is compared with the valve assembly or valve assembly of the prior art. The valve mechanism can avoid the leakage of propellant B in the state of forward spraying or reverse spraying, and also allows the user to obtain smooth work in progress and avoid troubles.

In addition, please refer to FIG. 6 , when the tank body of the present invention is used in a horizontal spraying state, the first bead 33 will lean against the first inclined inner wall surface 3212 and the second inclined inner wall surface 3232 due to the downward inclination. An inclined inner wall surface 3212 rolls rapidly toward the bottom of the tank and is positioned at the lower end of the inclination, so that the positive spray and suction port 322 is connected to the liquid agent inlet 315, and at the same time, the second bead 34 will also abut against the second incline. The wall 3232 moves rapidly towards the top of the tank and is positioned at the lower end of the inclination, so that the reverse spray suction port 324 is communicated with the liquid agent inlet 315; 3212 and the design of the second inclined inner wall surface 3232, so the first bead 33 and the second bead 34 will move downward in the direction of inclination at the lower ends of the two passages at the same time due to mutual interlocking, and promote positive spraying and water absorption Both the port 322 and the backspray suction port 324 are open, without causing the two beads to move indefinitely in the two channels, sometimes opening or sometimes closing the two suction ports to disrupt the flow direction of the liquid agent A, resulting in intermittent spraying .

Furthermore, please refer to FIG. 6 , the first inclined inner wall surface 3212 is formed below the first horizontal line and forms an inclined angle θ of 1.5 degrees toward the bottom of the tank. The second inclined inner wall surface 3232 is formed below the second horizontal line, and forms an included angle θ of 1.5 degrees toward the tank top. Since the first bead 33 and the second bead 34 are respectively movably arranged in the first channel 321 and the second channel 323, it is difficult to use the tank 10 when the tank 10 is held in a horizontal spraying state. It is in a 100% horizontal state, and at this time, the two ends of the tank body 10 tilt slightly up and down like a balance, so the operation of the tank body 10 at this time can only be called approaching the horizontal spraying state. Further, when the spray head 20 of the tank body 10 continues to tilt towards the ground and is within the pouring range of the upper edge of the first horizontal line and an included angle θ of 1.5 degrees, the first bead 33 can still be maintained stagnates against the lower end of the first inclined inner wall 3212 and opens the positive spray and suction port 322. At the same time, the second inclined inner wall 3232, which originally formed an included angle θ of 1.5 degrees, is almost parallel to the second horizontal line state, so the second bead 34 can be moved toward the lower end of the second inclined inner wall surface 3232 (i.e., the direction of the tank top), so that the backspray suction port 324 is also in an open state; otherwise, when the backspray is used, the tank body The spray head 20 of 10 continues to incline gradually in the opposite direction to the ground, and is within the falling range of the second horizontal line and the included angle θ of 1.5 degrees, so that the second bead 34 can still remain stagnant against the second inclined inner wall surface 3232 The lower end of the backspray water suction port 324 is opened, and at the same time, the first inclined inner wall surface 3212 and the first horizontal line, which originally formed an included angle θ of 1.5 degrees, are almost converted into a parallel state, so that the first bead body 33 Moving toward the lower end of the first inclined inner wall surface 3212 (that is, the direction of the bottom of the tank), the positive spray and suction port 322 is also in an open state.

More specifically, please refer to Fig. 6. As mentioned above, the two ends of the tank body 10 tilt up and down slightly like a balance, so the above-mentioned two beads move to form respective 1.5-degree angles during the above-mentioned two approaches to the horizontal spray state. If the included angle θ is within the pouring range, the maximum overlapping range of the two can be close to 3 degrees included angle θ (1.5 degrees + 1.5 degrees), so when the tank body 10 is gradually converted from the horizontal spraying state to the horizontal spraying state , the forward spray suction port 322 and the reverse spray suction port 324 can be submerged in the liquid agent A, and the liquid agent A in the tank can be sprayed out simultaneously when the nozzle 20 is pressed. Therefore, the present invention can quickly and accurately switch the forward spraying state, reverse spraying state, and horizontal spraying state, and the key point is to ensure that the propellant B will not leak out during various use state switching and various tilt state switching. This is not available in prior art valve assemblies or valve trains.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone in the technical field has Ordinary knowledgeable persons, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or be modified into equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention, according to the technical content of the present invention Technical Essence of the Invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

A: Liquid B: propellant D1: the first reference direction D2: Second reference direction D3: Third reference direction θ: included angle 10: tank 11: Internal space 12: Install the tank mouth 13: bottom wall 20: Nozzle 21: Nozzle 30: Valve Mechanism 31: Valve assembly 311: fixed cover 3111: fixed cover sealing ring 3112: Spring 312: valve stem 3121: horizontal hole 313: Stem sealing ring 314: valve seat 315: Liquid entrance 316: Liquid agent export 32: switch seat 321: first channel 3211: The first connection port 3212: The first inclined inner wall surface 322: Positive spray suction port 322B: The first suction port 323:Second channel 3231: Second communication port 3232: The second inclined inner wall 324: Backspray suction port 324B: Second suction port 325: common channel 326: confluence partition 327: first opening 328: The first plug cover 329: second opening 330:Second plug cover 32A: Body 32B: The third opening 32C: third plug cover 32C1: third plug cover guide wall 32D: Fourth opening 32E: Fourth plug cover 32E1: Fourth plug cover guide wall 33: The first bead 34: the second bead 35: Positive spray straw 35A: Positive spray extension pipe 36: Inverted spray straw 36A: Backspray extension pipe 361: Positioning box 362:Joint end 363: Positioning Convex Le 32F: Body 321F: the first channel 3211F: The first communication port 3212F: the first inclined inner wall 3213F: First ribbed slide 3214F: The first channel toss ring 323F: Second channel 3231F: Second communication port 3232F: second inclined inner wall 3233F: Second ribbed slide 3234F: second channel toss ring 327F: first opening 328F: First plug cap 3281F: First plug cap through hole 3282F: First Segto Ball Ring 329F: second opening 330F: Second plug cap 3301F: Second plug cap through hole 3302F: Second Segto ring 33F: the first bead 34F: second bead 911: valve assembly 912: switch seat 92: Straw 921: Positive spray suction port 922: Positive injection channel 923: common channel 924: Liquid entrance 925: Liquid agent export 93: Backspray suction port 931: backspray channel 94: beads 98: Nozzle 981:Nozzle

FIG. 1 is an exploded view of the first embodiment of the present invention. Fig. 2 is a side sectional view of the first embodiment of the present invention. Fig. 3 is a partially enlarged view of Fig. 2 of the present invention. Fig. 4 is a schematic side sectional view of the spraying state of the first embodiment of the present invention. FIG. 5 is a schematic side sectional view of the reverse spray state of the first embodiment of the present invention. Fig. 6 is a schematic side sectional view of the flat spray state of the first embodiment of the present invention. Fig. 7 is a side sectional schematic diagram of the horizontal spraying and the spraying head continuing to tilt downward according to the first embodiment of the present invention. Fig. 8 is a schematic side sectional view of the horizontal spraying and the spraying head continuing to tilt upwards according to the first embodiment of the present invention. Fig. 9 is an exploded view of the switching base of the first embodiment of the present invention. Fig. 9A is a schematic diagram of the combination of the switch seat and the reverse spray suction pipe according to the first embodiment of the present invention. Fig. 10 is a partially enlarged view of the second embodiment of the present invention. Fig. 11 is a side view and a three-dimensional sectional view of the second embodiment of the present invention in the first channel. Fig. 12 is a side view and a three-dimensional cross-sectional view of the second embodiment of the present invention in the second channel. Fig. 13 is a side view and a three-dimensional cross-sectional schematic diagram of the positions where the switching seat cooperates with the first and second beads according to the second embodiment of the present invention. Fig. 14 is the side view sectional schematic diagram of the positive spray state of the high-pressure spray tank of the prior art. Fig. 15 is a schematic side view sectional view of the reverse spraying state of the high-pressure spray tank of the prior art. Fig. 16 is the side view sectional schematic diagram of the flat spray state of the high-pressure spray tank of the prior art. Fig. 17 is a schematic side view sectional view of a downwardly inclined state of a high-pressure spray tank of the prior art.

D1: the first reference direction

D2: Second reference direction

D3: Third reference direction

10: tank

11: Internal space

30: Valve Mechanism

31: Valve assembly

312: valve stem

314: valve seat

315: Liquid entrance

32: switch seat

321: first channel

3211: The first connection port

3212: The first inclined inner wall surface

322B: The first suction port

323:Second channel

3231: Second communication port

3232: The second inclined inner wall

324: Backspray suction port

324B: Second suction port

325: common channel

326: confluence partition

327: first opening

328: The first plug cover

329: second opening

330:Second plug cover

32A: Body

33: The first bead

34: the second bead

35: Positive spray straw

35A: Positive spray extension pipe

36: Inverted spray straw

36A: Backspray extension pipe

Claims (14)

A valve mechanism for a high-pressure spray tank, which is used to set on a tank body and communicate with the inside and outside of the tank body, the tank body includes an internal space connected with it and a tank opening; the valve mechanism for a high-pressure spray tank The valve train contains a first reference direction, which is parallel to the axis of the tank and faces the top of the tank; a second reference direction, which is perpendicular to the first reference direction and faces radially outward of the tank; a third reference direction, which is parallel to the axis of the tank and towards the bottom of the tank; A valve assembly, which is sealed and fixed on the installation tank mouth of the tank body, the valve assembly has a liquid agent inlet and a liquid agent outlet, the liquid agent inlet is located in the inner space of the tank body, the liquid agent The outlet is located outside the tank; the liquid agent inlet is selectively connected to the liquid agent outlet; A switching seat, which is connected to the bottom end of the valve assembly and communicates with the valve assembly, the switching seat further includes a body, which includes a first channel, which includes a first communication port, which is formed at one end of the first channel facing the first reference direction, and communicates with the liquid agent inlet; A first inclined inner wall surface, which is located on one side of the first channel in the second reference direction; the first inclined inner wall surface is inclined to the axis of the tank body, and extends from one end facing the first reference direction to the One end of the third reference direction extends obliquely toward the second reference direction; the first inclined inner wall surface is formed with Two first rib-shaped sliding rails extend along the first inclined inner wall and are spaced apart from each other, and are adjacent to both sides of the opening of the first water suction port; the first bead can roll against the two first On the convex rib-shaped slide rail, a height gap is formed between the first bead and the first inclined inner wall surface; a first water suction port, which communicates with the first channel, and communicates with the liquid agent inlet through the first communication port of the first channel; a second channel, which includes a second communication port, which is formed at one end of the second channel facing the third reference direction, and communicates with the liquid agent inlet; A second inclined inner wall surface, which is located on one side of the second channel in the second reference direction; the second inclined inner wall surface is inclined to the axis of the tank body, and extends from one end facing the third reference direction to the One end of the first reference direction extends obliquely toward the second reference direction; the second inclined inner wall surface is formed with Two second convex rib-shaped sliding rails extend along the second inclined inner wall and are spaced apart from each other, and are adjacent to both sides of the hole of the second water suction port; the second bead can roll against the two second On the convex rib-shaped slide rail, a height gap is formed between the second bead and the second inclined inner wall surface; a second water suction port, which communicates with the second channel, and communicates with the liquid agent inlet through the second communication port of the second channel; a first bead, which is movably arranged in the first channel, and selectively connects or blocks the first water suction port and the liquid agent inlet; a second bead, which is movably arranged in the second channel, and selectively connects or blocks the second water suction port and the liquid agent inlet; in, When the tank body is in an upright position and the first reference direction is vertically upward, the first bead slides down so that the first water suction port is connected to the liquid agent inlet, and at the same time the second bead blocks the second communication mouth, whereby the second bead blocks the second water suction port and the liquid agent inlet; When the tank body is in an upside-down state and the first reference direction is vertically downward, the second bead slides down so that the second water suction port is connected to the liquid agent inlet, and at the same time the first bead blocks the first a communication port, whereby the first bead blocks the first water suction port and the liquid agent inlet; When the tank body is in a horizontal state and the second reference direction is vertically downward, the first bead abuts against the first inclined inner wall surface and stagnates at the lower end of the first inclined inner wall surface, whereby the The first water suction port communicates with the liquid agent inlet, and at the same time, the second bead abuts against the second inclined inner wall surface and stagnates at the lower end of the second inclined inner wall surface, whereby the second water suction port communicates with the liquid agent inlet. at the liquid inlet. The valve mechanism for high-pressure spray cans as described in claim 1, wherein, The included angle between the first inclined inner wall surface and the first reference direction is 1 degree to 3 degrees; The included angle between the second inclined inner wall surface and the third reference direction is 1 degree to 3 degrees. The valve mechanism for high-pressure spray cans as described in claim 2, wherein, The included angle between the first inclined inner wall surface and the first reference direction is 1.5 degrees; The included angle between the second inclined inner wall surface and the third reference direction is 1.5 degrees. The valve mechanism for a high-pressure spray can as described in any one of claims 1 to 3, wherein, The switching seat further includes a body, which includes a common channel, which communicates with the liquid agent inlet, and the first communication port and the second communication port communicate with the liquid agent inlet through the common channel; A confluence partition, which is arranged in the common passage, and is located between the first communication port and the second communication port. The valve mechanism for high-pressure spray cans as described in item 4 of claim, wherein, The switching seat further includes that the first channel, the first water suction port, the second channel, and the second water suction port are formed on the body; the body further includes a first opening formed on the body and located at one end of the first channel facing the third reference direction, and the first bead can enter or leave the first channel through the first opening; a first plug cap, which can detachably close the first opening; a second opening formed on the body and located at one end of the second channel facing the first reference direction, and the second bead can enter or leave the second channel through the second opening; a second plug cap, which can detachably close the second opening; a third opening formed on a side of the main body facing the second reference direction and communicating with the first communication port; A third plug cap, which can detachably close the third opening, and includes A third plug cover guide wall, which is interposed with the body to form a curved connection channel connected between the first water suction port and the first channel; a fourth opening formed on a side of the main body facing the second reference direction and communicating with the second communication port; A fourth plug cap, which can detachably close the fourth opening, and includes A fourth plug cover guide wall is interposed with the main body to form a curved connection channel connected between the second communication port and the common channel. The valve mechanism for a high-pressure spray can as described in any one of claims 1 to 3, wherein, The switching seat further includes that the first channel and the second channel are formed on the body; the body further includes A spray-back extension pipe part is formed on the main body and extends towards the second reference direction; the second water suction port is formed at the end of the spray-back extension pipe part in the second reference direction. The valve mechanism for a high-pressure spray can as described in any one of claims 1 to 3, wherein, The switching seat further includes that the first channel and the second channel are formed on the body; the body further includes A positive spray extension pipe part is arranged on the main body, communicates with the first water suction port, and extends toward the third reference direction. The valve mechanism for high-pressure spray cans as described in any one of claims 1 to 3, wherein the body of the switching seat includes a first opening formed on the body and located at one end of the first channel facing the third reference direction, and the first bead can enter or leave the first channel through the first opening; A first plug cap, which can be detachably arranged on the first opening, and stops the first bead from breaking away from the first passage; a first plug cap through hole is formed on the first plug cap; the first plug cap The inner diameter of the plug hole is smaller than the outer diameter of the first bead; a second opening formed on the body and located at one end of the second channel facing the first reference direction, and the second bead can enter or leave the second channel through the second opening; A second plug cap, which can be detachably arranged on the second opening, and stops the second bead from breaking away from the second channel; a second plug cap through hole is formed on the second plug cap; the second plug cap The inner diameter of the plug hole is smaller than the outer diameter of the second bead. The valve mechanism for high-pressure spray cans as described in Claim 8, wherein, A first plug support ball ring is formed on the back periphery of the first plug through hole, when the first bead abuts against the first plug support ball ring and thereby closes the first plug through hole; A first channel holding ball ring is formed on the top periphery of the first channel, and the first bead abuts against the first channel holding ball ring to thereby close the first communication port; A second plug support ball ring is formed on the back periphery of the second plug through hole, when the second bead leans against the second plug support ball ring and thereby closes the second plug through hole; A ball-supporting ring for the second channel is formed on the periphery of the bottom end of the second channel, and the second bead abuts against the ball-supporting ring for the second channel to thereby close the second communication port. A high-pressure spray tank comprising A tank body, which includes an internal space and a tank opening connected to each other; a spray head, which includes a nozzle; A valve mechanism for a high-pressure spray tank as described in any one of claims 1 to 9, which is arranged on the tank body and can communicate with the inside and outside of the tank body; the first reference direction is parallel to the tank body Shaft; the valve assembly is sealed and fixed on the installation tank mouth and connected to the spray head, and the liquid agent outlet of the valve assembly communicates with the nozzle of the spray head. The high-pressure spray can as described in item 10 of claim, wherein, The valve mechanism for a high pressure spray can further comprises A positive spray suction pipe is arranged on the switch seat and communicated with the first water suction port. The tail end of the positive spray suction pipe extends toward the second reference direction and toward the third reference direction to the bottom of the tank body. The high-pressure spray can as described in Claim 11, wherein, The switching seat further includes that the first channel and the second channel are formed on the body; the body further includes A positive spray extension pipe part is arranged on the main body, communicates with the first water suction port, and extends towards the third reference direction; the positive spray suction pipe is combined with the positive spray extension pipe part. The high-pressure spray can as described in item 10 of claim, wherein, The valve mechanism for a high pressure spray can further comprises A reverse spray suction pipe, which is arranged on the switch seat and communicated with the second water suction port, the reverse spray suction pipe is L-shaped, and its tail end faces the second reference direction and extends toward the first reference direction to the tank top of the body. The backspray suction pipe further includes a joint end, which is combined with the backspray extension tube part; a positioning box, which is engaged with the positioning rib of the backspray extension tube part. The high-pressure spray can as described in Claim 13, wherein, The switching seat further includes that the first channel and the second channel are formed on the body; the body further includes a reverse spray extension pipe part, which is formed on the body and extends toward the second reference direction; the second water suction port is formed at the end of the reverse spray extension pipe part in the second reference direction; the reverse spray extension A positioning rib is formed on the tube part.

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