JP2002081106A - Faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a faucet which has an on-off valve at the tip of a spout, wherein the degree of primary hydraulic pressure acting on the interior of a spout pipe when the on-off valve is closed, in a pull-out direction of the spout pipe, is decreased. SOLUTION: According to the faucet, a hydraulic pressure acting portion is formed at a base-side end of the spout pipe connected to a main body of the faucet. The hydraulic pressure acting portion works such that when the on-of valve at the tip of the spout pipe is closed, hydraulic pressure acts on the hydraulic pressure acting portion in a direction opposite to the pull-out direction of the spout pipe. The hydraulic pressure acting portion may be integrally formed together with the spout pipe or formed of a member different from the same. Thus, force acting in the pull-out direction of the spout pipe can be relatively cancelled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet for stopping water, hot water or mixed water.

[0002]

2. Description of the Related Art In a water faucet having an open / close valve portion at the tip of a water discharge pipe portion rotatably connected to a conventional faucet body, when the open / close valve portion is stopped, the water pressure on the primary side is reduced. It acts on a wide range from the water supply pipe section to the open / close valve section of the water discharge pipe section via the flow path in the main body section. However, in this case, in a vital part connecting the water discharge pipe part and the main body part, in long-term use,
It is difficult to achieve a structure that sufficiently satisfies the design quality that can withstand the primary pressure.

FIG. 12 shows a conventional example of Japanese Patent Application Laid-Open No. Hei 10-73169, and FIG. 13 is a vertical sectional view taken along the line GG of the middle part of the water discharge pipe. The faucet shown in FIG. 12 has a configuration in which a valve 72 for mixing and opening and closing hot water and an operation handle 76 for operating the valve 72 are provided at the tip of a water discharge pipe 78. The main parts will be described below. . The water supply pipe section 6 and the hot water supply pipe section 7 are connected to the main body section 77 by brazing or the like, and the main body section 77 and the water discharge pipe section 78 are connected by a retaining ring 75, and the fluid passing therethrough is sealed by a seal member 80. ing. The water and hot water flowing from the water supply pipe 6 and the hot water supply pipe 7 are
The water is introduced into the water flow path 14 and the hot water flow path 15 formed in the main body 77, respectively. The water flow path 14 communicates with a water inlet 70 provided on the base end side wall of the water discharge pipe section 78, and the water supply path 7 in the water discharge pipe is provided.
1 to the opening / closing valve section 72. Hot water channel 15
Communicates with the hot water inlet 73 provided on the base bottom surface 79 of the water discharge pipe 78 via the bottom surface of the opening of the main body 77, and reaches the opening / closing valve section 72 via the hot water supply passage 74 in the water discharge pipe.

Attention is paid to the flow path configurations 15 and 73 on the hot water supply side. At the base end of the water discharge pipe, the pressure on the hot side acts on almost the entire bottom surface 79 of the base end of the water discharge pipe. That is, in this faucet, when the open / close valve portion 72 at the distal end of the water discharge pipe is stopped, a primary pressure on the hot water side acts on the bottom surface 79 of the water discharge pipe base end, so that the entire water discharge pipe 78 is discharged. A large force acts to lift in the direction opposite to the direction of insertion and connection to the main body 77. Due to this, a large load acts on the retaining ring 75 which is a member connecting the water discharge pipe to the main body and the water discharge pipe and the main body part receiving the same, and the components of the part have sufficient strength. Will be required. In addition, in this case, when the water discharge pipe portion 78 is slidably rotated, a large operation force is required, which is inconvenient. In addition, if the water discharge pipe is rotated and slid many times over a long period of time, a large amount of frictional force is generated by the large load at the connection around the retaining ring, and the connection member is significantly worn. In the worst case, there is a risk of causing a serious water leakage accident in which the connecting part is broken and the water discharge pipe part 78 comes off from the main body part 77.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a faucet fitting having an opening / closing valve at the tip of a water discharge pipe section, and a large force acts in a direction in which the water discharge pipe section comes off to increase the rotational operation force of the water discharge pipe section. And the problem that the water discharge pipe part may fall out of the main body is eliminated, the rotation operation force of the water discharge pipe is light, and even in the long-term use, damage or water leakage at the connection between the water discharge pipe part and the faucet main body An object of the present invention is to provide a faucet fitting that is less likely to be generated.

[0006]

According to a first aspect of the present invention, there is provided a faucet fitting having an opening / closing valve portion at a distal end of a water discharge pipe portion rotatably connected to a faucet body. When the water shuts off the open / close valve portion, the water pressure acting on the components of the water discharge pipe portion, the location where the water pressure acts in a direction opposite to the direction in which the water discharge pipe portion comes off from the main body portion, the water discharge pipe portion In the vicinity of the end connected to the main body.

According to the present invention, the water pressure acting on the inside of the water discharge pipe at the time of water stoppage acts on a direction in which the water discharge pipe section comes out of the main body and a direction in which the water discharge pipe section is pressed toward the main body. Excessive force exerted on the part in the direction from the main body side is relatively canceled, and the connection quality between the two is improved.

According to a second aspect of the present invention, the end of the water discharge pipe portion connected to the main body is watertightly closed by an integral member or a separate member with the water discharge pipe, and on a side wall near the end. And an opening communicating with the main body channel.

According to the second aspect of the present invention, the balance of the water pressure acting inside the water discharge pipe at the time of water stoppage is substantially equal to the force acting in the direction in which the water discharge pipe section comes out of the main body and the force pressing the water discharge pipe section toward the main body. As a result, the excessive force applied to the water discharge pipe in the direction of pulling out from the main body side is almost canceled, and the connection quality between the two is further improved.

[0010] A third aspect of the present invention is a cylindrical member having a flow path formed in a hollow portion in watertight contact with an inner peripheral wall of an end portion of the water discharge pipe portion connected to the main body. And a sealing material for sealing in a range narrower than the inner diameter of the water discharge pipe at a location where the member is sealed with the main body.

According to the third aspect of the present invention, even in the case of a faucet structure in which fluid flows in from the bottom surface of the base end portion of the water discharge pipe, the water discharge pipe can be balanced in the water pressure acting on the inside of the water discharge pipe when water is stopped. The force can be applied in the direction of pressing the part against the main body, and the force applied to the water discharge pipe part in the direction from the main body side can be canceled, and the connection quality between the two can be improved.

[0014] In a fourth aspect of the present invention, a flange having a diameter larger than an outer diameter of the water discharge pipe formed integrally with or separate from the water discharge pipe is provided at an end of the water discharge pipe connected to the main body. Part, a hydraulic pressure non-acting portion configured by doubly sealing between the lower surface of the flange portion and the main body portion, and a pressure chamber provided in the opening of the main body located on the upper surface of the flange portion, An opening is provided on a side wall of the water discharge pipe portion to conduct the flow path in the water discharge pipe and the pressure chamber.

With this configuration, a force can be applied to the upper surface of the flange in the direction in which the water discharge pipe is pressed against the main body. Furthermore, since the area of the flange can be increased irrespective of the size of the water discharge pipe, the balance of the water pressure acting inside the water discharge pipe at the time of stopping water is more than the force acting in the direction in which the water discharge pipe is pulled out of the main body. It is possible to further increase the force for pressing the water discharge pipe portion toward the main body, and it is possible to make the force applied to the water discharge pipe portion in the direction of pulling out from the main body side almost negligible, and the connection quality of both is It will be even better.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention;
3 is an exploded perspective view of the embodiment, FIG. 3 is an exploded perspective view of the embodiment, FIG. 4 is a side view of a main part of the main body of the embodiment on the side where the temperature control function section is inserted, and FIG. FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10 and FIG. 11 are cross-sectional views of main parts showing another embodiment of the temperature control function part used in the embodiment.

First, the structure of each part of the faucet according to the present invention will be described with reference to FIGS. In FIG. 2, water and hot water flowing into the faucet main body 1 via the water supply pipe 6 and the hot water supply pipe 7 are discharged at a desired level by rotating the temperature control handle 2 provided on the side surface of the main body 1. The temperature is adjusted, and water is discharged and stopped by rotating the open / close handle 4 provided at the tip of the water discharge pipe 3.

Further, each component will be described with reference to FIGS. The main body 1 is fixed to the fixing part 5 attached to the counter surface with the set screw 8 with its lower part fitted. At this time, the water supply pipe 6 and the hot water supply pipe 7 are inserted into the fixed part 5. The water and hot water that have passed through the water supply pipe 6 and the hot water supply pipe 7 respectively reach the opening 9 provided on the side surface of the main body via the water flow path 14 and the hot water flow path 15 in the main body 1. The bottom 10 of the opening 9 is provided with a water opening hole 11, a hot water opening hole 12, and a mixed water opening hole 13 communicating with the water discharge pipe portion.

A temperature control function portion 67 is inserted and fixed in the opening 9 in a watertight manner via a packing 26. As shown in FIG. 5, the temperature control function section 67 houses a fixed disk 24 made of, for example, PPS resin and a movable valve 25 made of polyacetal resin in a casing 23 made of resin. A hole 27, a hot water through hole 28, and a mixed water through hole 29 are provided to face the water opening hole 11, the hot water opening hole 12, and the mixed water opening hole 13 of the main body 1 via the packing 26. .

One end of the movable valve 25 protrudes from the casing 23, and the temperature control handle portion 2 is attached to the shaft 30. A hollow portion 31 is provided on the surface facing the fixed disk 24. By rotating the movable valve 25 by rotating the hollow portion 3,
1 and the overlapping state of the hot water through hole 28 and the hot water through hole 27 change, and the mixing ratio of hot water and water changes.

The temperature adjusting handle portion 2 comprises a cylindrical portion 17 fixed to a shaft 30 and an arc-shaped ring portion 18 connected to the outer peripheral surface of the cylindrical portion 17.
Is attached to the shaft 30 so as to face the front side, and when the ring portion 18 is substantially parallel to the counter surface, mixed water at an appropriate temperature is discharged, and at a position inclined downward by about 45 degrees from this position, water is discharged. Only at the position inclined about 45 degrees upward, only hot water is discharged. Here, the convex portion 34 provided at the base of the shaft 30 engages with a fan-shaped counterbore 35 provided in the casing 23, and the counterbore 35
The protrusion 34 can be rotated only within the range of, that is, it constitutes a rotation restricting means of the temperature adjustment handle 2.

The hot and cold water that has passed through the mixed water through hole 29 of the temperature control function part 67 passes through the mixed water opening hole 13 and the mixed water passage 16 formed in the main body part 1 shown in FIG. Introduced to. Here, the main body 1 is provided with a connection opening 40 and a screw portion 41 of the water discharge pipe 3 on the upper surface thereof, and an outlet 20 of the mixed water flow path 16 is opened on a side wall inside the opening 40. . The spout 3 is inserted into the opening 40 via a guide 42 and a retaining ring 43.
4 and the screw portion 41 are connected by screwing. The water discharge pipe 3 is formed by bending a metal pipe such as a copper pipe into a shape having an inflection point in the middle. The base end is processed so as to have a stepped diameter integrally with the water discharge pipe by drawing or the like, and the base end side perpendicular to the central axis of the water discharge pipe is formed integrally with the water discharge pipe and closed, A through hole 45 is provided on the side surface near the end. Furthermore, on the outer peripheral surface of the side wall of the water discharge pipe having the through hole 45, a sealing material 62 is located at a position sandwiching the through hole 45 up and down, so that the outside of the hot and cold water flowing into the water discharge pipe part 3 from the main body 1. To prevent water leakage.

Returning to FIG. 3, an opening / closing valve section 60 is fixed to the distal end side of the water discharge pipe section 3 by screwing or the like. The opening / closing valve portion 60 has a valve seat portion formed of rubber, ceramic, or the like, and the valve seat portion is caused to flow by rotating the opening / closing handle portion 4 connected to the spindle 61 interlocked with the valve seat portion. Open and close the road to stop the mixed water.

In the present invention, as described above, since the base end of the water discharge pipe 3 on the main body side is closed, the open / close valve at the front end of the water discharge pipe is stopped, and the primary water is inserted into the faucet. The direction in which the water pressure acts in the state where the water pressure on the side is muffled acts not only in the direction in which the water discharge pipe section comes out of the main body section inside the water discharge pipe, but also in the opposite direction in which the water discharge pipe section is pressed toward the main body. That is, it is possible to prevent a state in which a force is acting only in a direction in which the water discharge pipe section comes out because the base end of the water discharge pipe in the conventional example is not closed. To further explain, the primary pressure of the tap water directly acts on the inside of the water discharge pipe when water is shut off by the open / close valve at the tip of the water discharge pipe, and the force acting in the direction of the open / close valve section, that is, the water discharge pipe section is The pushing force in the direction of exiting from the water is a force obtained by multiplying the internal pressure of the water discharge pipe by the water pressure. For example, when the inner diameter of the water discharge pipe is 20 mm, the inner diameter cross-sectional area is (20/2)
² × π = 314 mm ² . When a water pressure of 0.75 MPa specified in JIS is applied to the faucet fitting having the water discharge pipe, the force acting in the water discharge pipe part in the direction in which the water discharge pipe is removed from the main body part is 314 mm ² × 0.75 MPa =
235.5N. This value is a level that requires some measures in design in consideration of the rotational operability of the water discharge pipe and the long-term connection quality between the water discharge pipe and the main body. Furthermore, if a high pressure water hammer such as 1 MPa or 2 MPa acts on the faucet fitting, the problem becomes more serious and damages the parts connecting the water discharge pipe part and the main body part, causing breakage, water leakage, etc. It is conceivable that it will cause enormous damage.

Therefore, the purpose of the present invention is to improve the connection quality between the water discharge pipe portion and the main body by reducing the degree of the force acting in the direction in which the water discharge pipe comes off at the time of water stoppage as described above. As a countermeasure, it was considered to be a good measure to apply water pressure also in the direction opposite to the direction in which the water discharge pipe section comes out. In the embodiment shown in FIG. 1, since only the side wall is opened at the base end of the water discharge pipe 3 and the bottom is closed, when the open / close valve section 60 provided at the front end of the water discharge pipe is stopped, the inside of the water discharge pipe is stopped. Water pressure acts downward on the bottom 65 and the shoulder 66. That is, a force that pushes the water discharge pipe in a direction opposite to the direction in which the water discharge pipe part comes out can be obtained, and the force acting in the direction in which the water discharge pipe comes off can be canceled when viewed relatively. In this embodiment, since the entire bottom of the water discharge pipe is closed, the force for pressing the water discharge pipe downward acts on an area substantially equal to the cross-sectional area of the inner diameter A of the water discharge pipe. FIG. 1 schematically shows a state in which a force acts as a force F for pressing the water discharge pipe downwardly.

In addition to the structure of the embodiment of FIG. 1 described above, the structure of the closed portion of the base end of the water discharge pipe is, as shown in FIG. 6, cylindrical with one closed at the base end of the water discharge pipe. Another part 46 of
May be integrally connected in a watertight manner via brazing or a sealing material. In addition, the above-described closed portion does not necessarily have to be smaller in diameter than the water discharge pipe portion, and the base end portion may be closed with a diameter equal to or larger than the outer diameter of the water discharge pipe.

Next, another embodiment of the present invention is shown in FIG. In FIG. 7, a cylindrical member 48 having an inner diameter formed in a flow path is provided on the inner peripheral wall at the base end of the water discharge pipe 3 with a sealing material 49.
, And the retaining ring 47 prevents the retaining ring from coming off. Here, the water discharge pipe section 3 and the cylindrical member 48 may be connected in a watertight manner by brazing or the like. Further, a flow path 1 protruding cylindrically from the main body 1 and communicating with the center from the main body.
The cylindrical member 48 is rotatably and water-tightly inserted into and fitted to the protrusion 51 having the 6, and the O-ring 50 prevents water leakage.

In the above configuration, when the open / close valve at the tip of the water discharge pipe is stopped, a force due to water pressure acts in the water discharge pipe in a direction opposite to the direction in which the water discharge pipe comes off. This force F substantially acts on the area obtained by subtracting the area of the outer diameter B of the projecting portion 51 from the area of the inner diameter A of the water discharge pipe. In this embodiment, although the effect of canceling the force in the direction in which the water discharge pipe exits is less likely to be obtained as in the embodiment of FIG. 1, the force acting in the direction in which the water discharge pipe exits can be reduced by half. Here, the force acting in a range narrower than the diameter B is the discharge unit 5
This is a force acting on the main body 1 which is formed integrally with the main body 1 and does not contribute to a force acting in a direction in which the water discharge pipe does not come off.

FIG. 8 shows still another embodiment. FIG.
In the above, a cylindrical member 53 having a flow path in a hollow portion is joined to an inner peripheral wall of a base end portion of the water discharge pipe 3 in a watertight manner by brazing or the like. A circumferential sealing member 54 for performing sealing is provided.

In this configuration, when the open / close valve at the tip of the water discharge pipe is stopped, the force F acting in the water discharge pipe in the direction opposite to the direction in which the water discharge pipe comes out is determined by the area of the inner diameter A of the water discharge pipe. , And acts on the area obtained by subtracting the area of the diameter C of the peripheral sealing contact between the cylindrical member 53 and the sealing material 54. Also in this embodiment, it is possible to halve the force acting in the direction in which the water discharge pipe comes off. Further, here, the forces acting on the cylindrical member 53 in a range narrower than the diameter C are equal forces opposing each other in the upper surface and the lower surface of the cylindrical member 53, and these forces are canceled out and the water discharge pipe portion does not come off. It does not contribute to the forces acting in the direction.

Although the cylindrical member 53 is formed as a separate part in FIG. 8, even if the base end of the water discharge pipe is integrally bent inward into a flange as shown in FIG. The effect can be obtained for the same reason as described above.

FIG. 10 shows still another embodiment. In FIG. 10, a dish-shaped member 55 having a flow path in a hollow part and a flange 59 larger than the outer diameter of the water discharge pipe 3 on the outer peripheral part is attached to the inner peripheral wall of the base end of the water discharge pipe by brazing. Are joined in a watertight manner. On a lower surface of the dish-shaped member 55, a sealing member 57 having a circumferential sealing portion having substantially the same diameter as the inner diameter of the hollow portion, and a circumferential sealing portion having substantially the same diameter as the outer diameter of the flange portion 59 are provided. The seal member 58 having the following structure is disposed to seal the main body 1. This sealing member 57,
The annular area enclosed by 58 is a non-hydraulic portion in which hot water does not flow. This hydraulic pressure non-operating part is
8 communicates with the atmosphere outside the faucet. Further, by providing an opening hole 56 near the base end of the water discharge pipe 3 and a flow path in the water discharge pipe and the opening 40 of the main body 1, the flange 5 is provided.
A pressure chamber 64 is formed on the upper side of 9.

In the above configuration, when the opening / closing valve at the distal end of the water discharge pipe is stopped, the primary pressure acting in the water discharge pipe is supplied through an opening 56 provided near the base end of the water discharge pipe 3. It also acts inside the chamber 64, whereby a force acts on the upper surface of the flange 59 to press the flange downward. The downward force F acting in a direction in which the water discharge pipe does not come off is applied to the dish-shaped member 5.
5 substantially acts on a wide annular area surrounded by the sealing members 58 and 57 disposed on the lower surface of the pipe 5, and sufficiently cancels the force acting on the area of the inner diameter A in the direction in which the water discharge pipe comes off. It becomes possible. Also, by providing the air passage 68, the non-hydraulic portion sealed by the seal members 57 and 58 is opened to the atmosphere, and the sealing performance of the seal members 57 and 58 is stable without being affected by thermal expansion or the like. I do.

Although the dish-shaped member 55 is formed as a separate component in FIG. 10, even if the flange 59 is formed by integrally bending the base end of the water discharge pipe outward as shown in FIG. The effect can be obtained for the same reason as in the above case.

The present invention is not limited to the above-described embodiment, and can be applied to various faucets having an opening / closing valve at the tip or in the middle of the spout pipe. The invention can be applied to a single faucet that supplies only water or a cup, or a faucet that is mounted on a wall instead of a stand type that is mounted on a counter surface. Alternatively, as the temperature control valve unit, a temperature control valve unit used in a so-called thermostat type mixing tap for automatically controlling the mixing ratio of hot and cold water may be used.

[0034]

According to the present invention, there is provided a water faucet having an open / close valve portion at a distal end portion of a water discharge tube rotatably connected to a water faucet main body. Is formed integrally with the water discharge pipe or by another member so that a water pressure acting portion is formed so that a force due to water pressure acts in a direction opposite to a direction in which the water discharge pipe section comes off. This makes it possible to relatively cancel a large force due to the primary hydraulic pressure, which previously worked unidirectionally in the direction in which the water discharge pipe comes off, and increases the load applied to the member connecting the water discharge pipe part and the main body part. As a result, the rotational operation force of the water discharge pipe can be reduced, and the quality of the part connecting the water discharge pipe part and the main body can be maintained over a long period of time. A hard faucet can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is an external perspective view of a faucet according to the present invention.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a side view of a temperature control function unit mounting portion of the main body.

FIG. 5 is an exploded perspective view of the temperature control function unit.

FIG. 6 is a sectional view of a main part showing another configuration of the invention of FIG. 1;

FIG. 7 is a cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 8 is a sectional view of a main part showing another embodiment of the present invention.

FIG. 9 is a sectional view of a main part showing another configuration of the invention of FIG. 8;

FIG. 10 is a cross-sectional view of a main part showing another embodiment of the present invention.

11 is a sectional view of a main part showing another configuration of the invention of FIG. 10;

FIG. 12 is a partial cross-sectional view showing a conventional embodiment.

FIG. 13 is a vertical sectional view of a water discharge pipe according to a conventional embodiment.

[Explanation of symbols]

A: inner diameter of water discharge pipe flow path B: outer diameter of main body projection in FIG. 7 C: seal diameter for sealing the lower surface of water discharge pipe and main body in FIG. 8 D: flange and main body in FIG. A seal diameter that seals the flange and the main body inside in FIG. 10 F. A force that acts in a direction opposite to a direction in which the water discharge pipe comes out of the main body 1. Main body Part 2 Temperature control handle part 3 Water discharge pipe part 4 Opening / closing handle part 5 Fixed part 6 Water supply pipe 7 Hot water supply pipe 8 Set screw 9 Body temperature control side opening 10・ ・ Bottom part on body temperature control side 11 ・ ・ Water opening hole 12 ・ ・ Hot water opening hole 13 ・ ・ Mixed water opening hole 14 ・ ・ Water flow path 15 ・ ・ Hot water flow path 16 ・ ・ Mixed water flow path 17 ・ ・ Cylinder 18 ・・ Ring part 20 ・ ・ Outlet of mixed water channel 23 ・ ・ Casing 24 ・ ・ Fixed disk 25 Movable valve 26 Packing 27 Water hole 28 Hot water hole 29 Mixed water hole 30 Shaft 31 Hollow part 34 Convex part 35 Counterbore Part 40: Opening 41: Screw part 42: Guide 43: Retaining ring 44: Cap 45: Through hole 46: Cylindrical part 47: Retaining ring 48: Cylindrical member 49: Seal Material 50 Sealing material 51 Projection 53 Cylindrical member 54 Sealing material 55 Dish-shaped member 56 Opening hole 57 Sealing material 58 Sealing material 59 Flange 60・ Opening / closing valve part 61 ・ ・ Spindle 62 ・ ・ Seal material 63 ・ ・ Flange part 64 ・ ・ Pressure chamber 65 ・ ・ Bottom part 66 ・ ・ Shoulder part 67 ・ ・ Temperature control function part 68 ・ ・ Air passage 70 ・ ・ Water inlet 71・ ・ Water supply channel in water discharge pipe 72 ・ ・ Valve part 73 ・ ・ Hot water inlet 74 ・・ Hot water supply channel in water discharge pipe 75 ・ ・ Retaining ring 76 ・ ・ Handle part 77 ・ ・ Main body part 78 ・ ・ Water discharge pipe part 79 ・ ・ Bottom of water discharge pipe 80 ・ ・ Seal material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D060 BB01 BE07 3H051 AA09 BB10 CC11 FF02 3H067 AA13 CC60 DD03 DD12 DD24 EC07 EC22 FF02 GG13

Claims (4)

[Claims] 1. A faucet fitting having an open / close valve portion at a distal end portion of a water discharge tube portion rotatably connected to a water faucet main body, wherein when the open / close valve portion is stopped, a component of the water discharge tube portion is provided. The water pressure acting on the water discharge pipe portion is provided with a point where the water pressure acts in a direction opposite to the direction in which the water discharge pipe portion comes off from the main body portion, near the end on the side connected to the main body of the water discharge pipe portion. And faucet. 2. An end of the water discharge pipe portion on the side connected to the main body is watertightly closed by an integral member or a separate member with the water discharge pipe, and the flow of the main body portion is formed on a side wall near the end portion. The faucet according to claim 1, wherein an opening communicating with the road is provided. 3. A tubular member provided with a flow path in a hollow portion in a watertight manner in contact with an inner peripheral wall of an end portion of the water discharge pipe portion on a side connected to the main body, and the cylindrical member and the main body. The faucet according to claim 1, further comprising: a sealing material that seals in a range narrower than an inner diameter of the water discharge pipe at a location where the water faucet is sealed. 4. A flange having a larger diameter than an outer diameter of the water discharge pipe formed integrally with or separate from the water discharge pipe at an end of the water discharge pipe connected to the main body; A water pressure non-acting portion configured by doubly sealing between the lower surface and the main body portion, a pressure chamber located on the upper surface of the flange portion and provided in an opening of the main body, and a water discharge pipe portion. The faucet according to claim 1, wherein an opening is provided on a side wall to connect the flow path in the water discharge pipe to the pressure chamber.