WO2010003272A1

WO2010003272A1 - A gas extraction apparatus

Info

Publication number: WO2010003272A1
Application number: PCT/CN2008/001288
Authority: WO
Inventors: 陈信育
Original assignee: Chen Hsin-Yu
Priority date: 2008-07-08
Filing date: 2008-07-08
Publication date: 2010-01-14

Abstract

A gas extraction apparatus includes: a rotary power source (10) having a spindle (11); an eccentric seat (20) having an input end (21) and an output end (22), said output end (22) being eccentrically provided with respect to said input end (21), and said spindle (11) being securely inserted into said input end (21); a piston crankshaft (30) having a connecting end (31) and at least one branch stem (32) arranged transversely to said connecting end (31), said connecting end (31) being securely inserted into said output end (22) of said eccentric seat (20); a piston device (40) comprising at least one rubber piston (41) corresponding to said branch stems (32) in number, each rubber piston (41) being connected with the respective branch stem (32) by inserting its connecting pillar (43) into the branch stem (32); and a gas one-way valve device (50) having at least one one-way flowing passage (54) and two check valves (53) provided at two ends of each one-way flowing passage (54).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an air extracting device, and more particularly to an air extracting device that automatically extracts air by rotating a power source. BACKGROUND OF THE INVENTION A sealed container can be used for placing food, precision instruments, accessories, musical instruments and the like which are damp-proof. After the air is extracted, the moisture contacted by the articles can be reduced, thereby increasing the shelf life or preventing the articles from being damaged by moisture. The sealed container generally has a cover body and a container can. The cover body is used for closing the container can, and the cover body is provided with an umbrella valve and at least one air hole extending through the cover body, and the umbrella valve shields the air hole. According to the user, the user can cover the umbrella valve by providing a negative pressure environment through a piston device, and the air in the container can be pressed by the air hole to bend and leave the container, so that a vacuum is formed in the container. The vacuum space of the degree, and when the air pressure outside the container tank is larger than that in the container tank, the air will press the umbrella valve to tightly close the air hole, thereby maintaining the vacuum in the container tank. It is known that the container can be formed into a vacuum space with a certain degree of vacuum. The user must have the piston device cover the umbrella valve, and the piston device can be pulled back and forth a plurality of times, which is quite inconvenient to use, and the user is easy because Negligence or slackness causes insufficient vacuum in the can, leaving the container still visibly humid, which can cause the stored contents of the can to be damaged faster than expected. SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide an air extraction device that automatically draws air. A secondary object of the present invention is to disclose an automatic air extraction device that can be used in conjunction with a sealed container. To achieve the above object, an air suction device of the present invention includes a rotational power source, an eccentric seat, a piston crank, a piston device, and a one-way valve device, wherein the rotary power source has a spindle, the spindle Providing a rotational power, the eccentric seat has an input end and an output end, the input end and the output end are eccentrically disposed, and the input end is sleeved and fixed to the mandrel, and the piston crank has a And a connecting end and at least one handle disposed laterally with respect to the connecting end, and the connecting end is sleeved and fixed with the output end of the eccentric seat. And the piston device includes at least one rubber piston relative to the shank, and each of the rubber pistons defines a variable space, and the rubber piston can be driven to change the volume of the variable space, and the rubber The piston is engaged with the shank, and the one-way valve device has at least one unidirectional flow passage corresponding to the variable space, and two check valves disposed at opposite ends of the unidirectional flow passage and having the same reverse direction And the one-way flow path is in communication with the variable space. According to this, the mandrel can drive the eccentric seat to rotate, and the eccentric seat is eccentrically rotated to swing the shank of the piston crank back and forth, so that the shank can drive the rubber piston to change the volume of the variable space. That is, it can change the air pressure in the one-way flow passage to allow air to pass through the one-way flow passage in one direction through the two check valves to form an air suction device. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an exploded view of the structure of the present invention. Figure 2 is a structural combination diagram of the present invention. Figure 3 is a cross-sectional view 1 of a partial part assembly of the present invention. Figure 4 is a cross-sectional view of a portion of the assembly of the present invention. Figure 5 is a cross-sectional view III of a partial part assembly of the present invention. DETAILED DESCRIPTION OF THE INVENTION In order to provide a more in-depth understanding and recognition of the features, objects and advantages of the present invention, the preferred embodiments are illustrated and described in conjunction with the drawings: Referring to Figures 1 and 2, the present invention is a pumping The pneumatic device comprises a rotary power source 10, an eccentric mount 20, a piston crank 30, a piston device 40 and a one-way valve device 50, wherein the rotary power source 10 has a spindle 11 which is provided With a rotational power, the rotational power source 10 can be a motor that can be rotated by the battery and the external power supply to provide rotational power. Referring to FIG. 3 again, the eccentric seat 20 has an input end 21 and an output end 22, The input end 21 and the output end 22 are eccentrically disposed, and the input end 21 is sleeved and fixed to the mandrel 11 , and the piston crank 30 has a connecting end 31 and at least one handle disposed transversely with respect to the connecting end 31 . 32, wherein the preferred number of the shanks 32 is three and evenly distributed in the lateral direction of the connecting end 31, and the connecting end 31 is sleeved and fixed with the output end 22 of the eccentric seat 20, so when the mandrel 11 When rotating, the piston crank 30 will swing up and down due to eccentric rotation, that is, the shank 32 disposed laterally with respect to the connecting end 31 will be driven to swing back and forth. Moreover, the present invention may further include a crank front cover 60 that is disposed to fit the rotary power source 10, and the crank front cover 60 has a hollow receiving space 61, and the hollow receiving space 61 is available for the eccentricity. The seat 20 is placed in protection with the piston crank 30. Referring to FIG. 4 again, the piston device 40 includes at least one rubber piston 41 relative to the shank 32, and each of the rubber pistons 41 defines a variable space 411, and the piston device 40 can include A carrier plate 42 is formed by extending one side of the carrier plate 42 outwardly. As shown in the drawing, the rubber piston 41 of the piston device 40 can be three and disposed opposite to the three shanks 32. And the three rubber pistons 41 are evenly distributed on the carrier plate 42. Moreover, the present invention may further include a piston ring cover 70. The piston ring cover 70 is provided with at least one piston seat 71. The piston seat 71 can be sleeved with the rubber piston 41. As shown, the piston seat 71 can be Three and evenly distributed within the piston ring cover 70. Moreover, the rubber piston 41 can be driven to change the volume of the variable space 411, and the rubber piston 41 is formed with a connecting post 43. The connecting post 43 is provided with a flange 431, and a contact point is provided on the connecting rod 32. 33, the connecting post 43 and the flange 431 pass through the joint 33 and the flange 431 is clamped through the joint 33, so that when the shank 32 swings back and forth, the rubber piston 41 can be driven to be pressed. The volume of the variable space 411 is changed. Referring to FIG. 5 again, the one-way valve device 50 has at least one unidirectional flow path 54 (three shown) relative to the variable space 411 and two louvers 54 disposed on the one-way flow path 54. The two check valves 53 having the same direction and the same direction, the one-way valve device 50 may include a valve ring piece 51 and a valve ring seat 52, the valve ring piece 51 is fitted to the 7-plate 42, and Covering the rubber crossover piston 41 to close the variable space 411, and the gas valve ring piece 51 corresponds to the area of the rubber piston 41, and at least one first air hole 511 (three shown) and one through a second air hole 512, and a through hole 513 is formed in the valve ring piece 51 where the rubber piston 41 is not disposed, and the valve ring piece 51 is disposed on a side away from the carrier plate 42. A groove 514 that communicates with the vent hole 513 and the second vent 512, and the valve ring seat 52 covers the valve ring piece 51 to close the groove 514. A valve umbrella 515 is disposed on a side of the first air hole 511 adjacent to the carrier plate 42. The valve umbrella 515 has a mounting post 517, and the air valve ring piece 51 is provided with a hole 518 for the mounting post. The 517 is inserted to fix the valve umbrella 515. In addition, a side of the vent 513 adjacent to the carrier 42 is also covered with a valve piece 516. The valve piece 516 is floatingly connected to the plate 42. The valve umbrella 515 and the valve piece 516 form the two check valves. 53. The unidirectional flow passage 54 is formed by the air flow space between the first air hole 511, the second air hole 512, the groove 514 and the air vent 513. Moreover, the one-way flow passage 54 communicates with the variable space 411. Therefore, when the volume of the variable space 411 is changed, the internal air pressure of the one-way flow passage 54 can be changed, so that the internal air pressure of the one-way flow passage 54 is increased. When it is large, its air can be separated from the vent hole 513 through one of the two check valves 53 (ie, the valve piece 516), and when the internal air pressure of the unidirectional flow path 54 is reduced, An air hole 511 sucks in air through the other of the two check valves 53 (i.e., the valve umbrella 515), and when it reciprocates, air is extracted from the first air hole 511. In addition, the gas valve ring seat 52 is provided with a gas collecting groove 521 on a side close to the gas valve ring piece 51. The gas collecting groove 521 is disposed on the first gas hole 511, that is, the three one-way flow path 54. The first air hole 511 is opposite to the air collecting groove 521, and a side of the gas valve ring seat 52 away from the air valve ring piece 51 is provided with an air suction pipe 522, and the air suction pipe 522 is connected to the air collecting groove 521. Therefore, as long as the suction pipe 522 is inserted into a closed container (not shown), the air in the sealed container can be sucked out from the first air hole 511 through the air suction pipe 522 and the air collection groove 521. . In addition, in order to combine the crank front cover 60, the piston ring cover 70, the carrier plate 42, the air valve ring piece 51 and the air valve ring seat 52, the crank front cover 60 can be set. a penetrating hollow boss 62 having a 4 rim 621 near the end of the rotary power source 10, the piston ring cover 70 is provided with a hollow collar 72, and the hollow collar 72 is end-to-end The boss 62 is sleeved, and the other end of the hollow collar 72 protrudes from the piston ring cover 70, and the plate 42 is provided with a notch 44 corresponding to the hollow collar 72 for receiving the hollow collar 72. The air valve ring 51 is provided with a hollow cylinder 55. The hollow cylinder 55 is nested in the hollow collar 72. The air valve ring seat 52 is provided with a through hole 56, and the air valve ring seat 52 is away from the air valve. One side of the ring piece 51 defines a groove 561 around the hole 56. The hole 561 can be passed through the hole 561 through the hole 561, the hollow cylinder 55 and the hollow ring 72. Locked on a nut 81 that abuts against the 4th edge 621. As described above, the present invention provides rotational power from the rotational power source 10, that is, air can be drawn by the first air hole 511, and the first air hole 511 can communicate with the air suction pipe 522, so that the air suction pipe 522 can be combined. The sealed container can vacuum the sealed volume, which is an automatic extraction, which can eliminate the trouble of the user repeatedly pulling the hand, and only needs to design the circuit to allow the user to touch the button by one button. When the power source 10 is turned on for a certain period of time, the vacuum degree of the sealed container can be ensured to meet the demand, and the degree of vacuum in the sealed container is not insufficient due to negligence or laziness of the user, which ensures the function of the sealed container to extend the stored article.

Claims

Claims A pumping device, characterized in that it comprises:

a rotating power source (10), the rotating power source (10) having a spindle (11), the spindle (11) providing rotational power;

An eccentric seat (20), the eccentric seat (20) has an input end (21) and an output end (22), the input end (21) and the output end (22) are eccentrically disposed, and The input end (21) is sleeved and fixed to the mandrel (11);

a piston crank (30) having a connecting end (31) and at least one shank (32) disposed laterally with respect to the connecting end (31), and the connecting end

(31) being sleeved and fixed with the output end (22) of the eccentric seat (20);

a piston device (40), the piston device (40) comprising a quantity relative to the shank

At least one rubber piston (41) of (32), and each of the rubber pistons (41) defines a variable space (411), and the rubber piston (41) can be driven to press to change the Changing the volume of the space (411), and the rubber piston (41) is fitted with the shank (32);

a one-way valve device (50) having at least one one-way flow path (54) opposite to the variable space (411) and disposed in the one-way flow path (54) Two check valves (53) having the same end and the same direction, and the one-way flow passage (54) is in communication with the variable space (411). The air extracting device according to claim 1, further comprising a crank front cover (60), said crank front cover (60) being disposed in contact with said rotary power source (10), and said crank front The cover (60) has a hollow accommodating space (61), and the hollow accommodating space (61) is provided for the eccentric seat (20) and the piston crank (30). The air suction device according to claim 1, wherein the shank (32) is three and evenly distributed in a lateral direction of the connecting end (31), and the rubber piston of the piston device (40) (41) is three and arranged relative to three shanks (32), and three rubber pistons (41) are evenly distributed on the carrier plate (42).

4. The air extraction device according to claim 1, wherein the piston device (40) comprises a carrier plate (42), and the rubber piston (41) is provided by one side of the carrier plate (42) Formed toward the extension.

5. The air extraction device according to claim 4, wherein the one-way valve device (50) comprises a valve ring piece (51) and a valve ring seat (52), the valve ring piece (51) fitting the carrier plate (42) and covering the rubber piston (41) to close the variable space (411), and the valve ring piece (51) corresponds to the rubber piston ( a region of 41), provided with at least one first air hole (511) and a second air hole (512), and the valve ring piece

(51) a through hole (513) is provided at a position opposite to the rubber piston (41), and the valve ring piece (51) is disposed on a side away from the carrier plate (42) There is a groove (514), the groove (514) communicates with the vent hole (513) and the second air hole (512), and the valve ring seat (52) covers the valve ring piece (51) closing the groove (514), and a side of the first air hole (511) adjacent to the carrier plate (42) is covered with a valve umbrella (515), and the exhaust hole (513) A side of the carrier (42) is also covered with a valve plate (516), and the valve umbrella (515) and the valve plate (516) form the two check valves (53) to allow The air flow space between the first air hole (511), the second air hole (512), the groove (514) and the exhaust hole (513) forms the one-way flow path (54).

6. The air suction device according to claim 5, wherein the valve umbrella (515) has a mounting post (517), and the air valve ring piece (51) is provided with a hole (518). The insertion hole (518) is inserted into the mounting post (517) to fix the valve umbrella (515), and the valve piece (516) is floatingly coupled to the carrier plate (42).

The air extracting device according to claim 5, wherein the gas valve ring seat (52) is provided with a gas collecting groove (521) on a side close to the gas valve ring piece (51). Gas collecting tank

(521) is disposed on the first air hole (511), and the air valve ring seat (52) is provided with an air suction pipe (522) on a side away from the air valve ring piece (51), An intake pipe (522) is in communication with the gas collection groove (521).

8. The air suction device according to claim 7, wherein the shank (32) is three and evenly distributed in a lateral direction of the connecting end (31), the piston device (40) The rubber piston (41) is also three and disposed relative to the three shanks (32), and the three rubber pistons (41) are hooked on the ⁷ ? On the plate (42), and the one-way flow passage (54) is also three and the first air holes (511) of each of the one-way flow passages (54) are opposite to the gas collection groove (521). .

9. The air suction device according to claim 1, further comprising a piston ring cover

(70), the piston ring cover (70) is provided with at least one piston seat (71), and the piston seat (71) can be sleeved with the rubber piston (41).

The air suction device according to claim 1, wherein the rubber piston (41) is formed with a connecting post (43), and the connecting post (43) is provided with a flange (431), a handle (32) is disposed on the support (32), the connecting post (43) and the flange (431) pass through the joint (33) and the flange is clamped through the joint (33) (431).