CN110886874A

CN110886874A - High-pressure inflation valve

Info

Publication number: CN110886874A
Application number: CN201911288585.0A
Authority: CN
Inventors: 刘启亮; 王俊; 徐玲建; 陈敏华; 张永炬
Original assignee: Zhejiang Luosen Compressor Co Ltd
Current assignee: Zhejiang Luosen Compressor Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-03-17

Abstract

The invention provides a high-pressure inflation valve, and belongs to the technical field of valve control. The problem that when an existing high-pressure inflation valve is separated from gas storage equipment, high-pressure gas can be sprayed out to cause danger to a human body is solved. This high pressure inflation valve installs handle structure including opening the disk seat that has air inlet and gas outlet on the disk seat, installs inflation valve core subassembly on the disk seat, still opens the mouth of losing heart on the disk seat, still installs the case subassembly that loses heart on the disk seat, and handle structure can drive the switching on or the closure of the above-mentioned air inlet of case subassembly work control and gas outlet of aerifing, and handle structure can drive the above-mentioned gas outlet of case subassembly work control that loses heart and the closure or the switching on of mouthful. The high-pressure inflation valve has the advantages of simple structure, controllable flow of inflation gas and capability of releasing pressure before being separated from the gas storage equipment, so that high-pressure gas cannot be sprayed out to cause danger to the human body.

Description

High-pressure inflation valve

Technical Field

The invention belongs to the technical field of valve control, and relates to a high-pressure inflation valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like.

The published Chinese patent with the publication number of CN108799512A and the name of a high-pressure valve comprises a valve body with an air inlet, an air outlet and a mounting hole, a pressing device which is arranged in the mounting hole, is hermetically connected with the inner side wall of the mounting hole, is provided with an air inlet hole and an air outlet hole and is used for controlling the communication or the closing of the air inlet and the air outlet; and the limiting block is arranged below the pressing device, matched with the pressing device and the air inlet and used for limiting whether the air inlet of the pressing device enters air or not. The opening and closing of the valve are controlled by pressing or lifting the pressing device, and when the valve is applied to high-pressure inflation, such as high-pressure gas inflation of gas storage equipment, the valve has the following problems: the high-pressure gas charging device mainly comprises a high-pressure gas charging valve, wherein the high-pressure gas charging valve is required to be separated from the gas storage device after the gas storage device is charged with high-pressure gas, and then the next gas storage device can be charged with gas.

Disclosure of Invention

The invention aims to solve the technical problems and provides a high-pressure inflation valve.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a high pressure inflation valve, is including opening the disk seat that has air inlet and gas outlet, installs handle structure on the disk seat, install the case subassembly of aerifing on the disk seat, its characterized in that: still open the mouth that loses heart on the disk seat, still install the case subassembly that loses heart on the disk seat, handle structure can drive the aforesaid and aerify the switch on or the closure of the above-mentioned air inlet of case subassembly work control and gas outlet, handle structure can drive the aforesaid and lose heart the closure of case subassembly work control above-mentioned gas outlet and the mouth that loses heart or switch on.

In the high-pressure inflation valve, the valve seat is internally provided with a first installation cavity, the inflation valve core assembly is installed in the first installation cavity, the inflation valve core assembly comprises a first valve core seat, a first valve core and a first driving mechanism, the first valve core seat is internally provided with a first inner cavity, the upper end and the lower end of the first valve core seat are respectively provided with a first air outlet channel and a first air inlet channel which are communicated with the first inner cavity, the first air inlet channel is communicated with the air inlet, the first driving mechanism comprises a thimble seat, the thimble seat is internally provided with a thimble inner cavity, the thimble inner cavity is internally provided with a first thimble press pin and a first piston which is fixedly connected with the first thimble press pin, the middle part of the first piston is radially protruded with a first convex edge, the first piston is sleeved with a first reset spring, one end of the first reset spring is abutted against the first convex edge, the other end of the first inner cavity is abutted against the first valve core seat, a steel ball and a second return spring which drives the first valve core to be always upwards to seal the first air outlet channel are arranged in the first inner cavity, the steel ball is blocked at the first air inlet channel, the upper end and the lower end of the second return spring are respectively abutted against the first valve core and the steel ball, and the first piston is positioned above the first valve core seat and can drive the first valve core to move downwards to open the first air outlet channel when moving downwards.

In the above high pressure inflation valve, the first valve core seat includes an air-closing cover, a support cylinder, a sintered filter and a valve core end cover, which are sequentially connected from top to bottom, and the first air outlet channel and the first air inlet channel are respectively provided on the air-closing cover and the valve core end cover.

In the above high-pressure inflation valve, the inner wall of the first air outlet channel has a conical surface, and the corresponding first valve core is an air-closing cone with a conical surface structure.

In the high-pressure inflation valve, the upper end part of the thimble seat is hermetically connected with the inner wall of the first installation cavity through a first sealing ring, the middle part of the first piston is hermetically connected with the inner cavity of the thimble through a second sealing ring, and the upper end part of the first valve core seat is hermetically connected with the first installation cavity through a third sealing ring; an O-shaped sealing ring is arranged between the sintered filter and the valve core end cover.

In the above high pressure inflation valve, the valve seat on still seted up the second installation cavity and cross the gas passageway, above-mentioned first installation cavity is through crossing gas passageway and second installation cavity intercommunication, and above-mentioned case subassembly that loses heart is installed in the second installation cavity, the case subassembly that loses heart includes second case seat, second case and second piston, it has the second inner chamber to open in the second case seat, second outlet channel and the second inlet channel that communicates with above-mentioned second inner chamber have been opened respectively to second case seat upper end and lower extreme, the second inlet channel communicates with above-mentioned gas outlet, the radial protrusion in middle part of second piston has the second protruding edge, the cover is equipped with third reset spring on the second piston, third reset spring one end supports and leans on above-mentioned second protruding edge, and the other end supports and leans on above-mentioned second case seat, install in the second inner chamber and have and order to make above-mentioned second case upwards all the time make above-mentioned second outlet channel confined fourth reset spring, the upper end and the lower end of the fourth reset spring are respectively abutted against the side walls of the second valve core and the second air inlet channel, and the second piston is positioned above the second valve core seat and can drive the second valve core to move downwards when moving downwards so as to open the second air outlet channel to be communicated with the air outlet.

In the above-mentioned high pressure inflation valve, the second valve core seat structure is the same as the first valve core seat structure; the structure of the second air outlet channel is the same as that of the first air outlet channel, and the structure of the corresponding second valve core is the same as that of the first valve core; and the second valve core seat is hermetically connected with the second mounting cavity through a fourth sealing ring.

In foretell high pressure charging valve, handle structure include handle seat, double-screw bolt, handle and nut seat, it has the handle mounting groove to open on the handle seat, the double-screw bolt is worn to establish in the nut seat and the both ends of double-screw bolt stretch out respectively outside the nut seat both ends, the outer end and the above-mentioned handle threaded connection of double-screw bolt, the inner of double-screw bolt is the knock pin, the nut seat rotates through the rotating pin to be connected on the left and right sides cell wall of above-mentioned handle mounting groove, and the rotating pin is located above-mentioned first thimble pressure pin, works as when the bolt rotates back around the rotating pin and is in the equidirectional with first thimble pressure pin, the knock pin is pushing up first thimble pressure pin moves down.

In the high-pressure inflation valve, a groove is formed in the middle of the nut seat, an adjusting nut is arranged in the groove and is in threaded connection with the bolt, and the bolt can be driven to move left and right relative to the nut seat by rotating the adjusting nut; the adjusting nut is positioned right above the second piston, and when the adjusting nut rotates downwards around the rotating pin, the adjusting nut abuts against the second piston and drives the second piston to move downwards.

In the above-mentioned high pressure inflation valve, the handle mounting groove include rear side cell wall and foretell left and right sides cell wall, the handle mounting groove link up to handle seat side with the just right side of above-mentioned rear side cell wall, it is equipped with the cake magnet to inlay on the cell wall of rear side, the bolt is close to that of knock pin and is equipped with cylinder magnet, cylinder magnet and above-mentioned cake magnet magnetism are opposite.

Compared with the prior art, the high-pressure inflation valve has the following advantages:

1. the air leakage valve core assembly is arranged for controlling the air leakage opening and the air outlet to be communicated or closed, when high-pressure inflation is finished, the air leakage opening and the air outlet are controlled to be communicated through the air leakage valve core assembly to remove and release high-pressure air at the air outlet and on the air transmission channel before the high-pressure inflation valve is separated from the air storage device, and the high-pressure air is separated after the air pressure is reduced, so that the high-pressure air is prevented from being sprayed out to cause personal injury, and the operation safety is guaranteed;

2. the handle structure can respectively control the work of the inflation valve core assembly and the deflation valve core assembly, when the handle is in an initial horizontal state, the first valve core and the second valve core respectively block the first air outlet channel and the second air outlet channel so as to be in a closed state, and when the handle rotates upwards, the ejector pin of the bolt can drive the first valve core to move downwards so as to open and conduct the first air outlet channel; when the handle rotates downwards, the adjusting nut can drive the second valve core to move downwards so as to open and conduct the second air outlet channel; the handle structure can simultaneously control the conduction of the first valve core and the second valve core, the design is ingenious, the structure is simplified, and the cost is reduced;

3. through the adjustment of the adjusting nut, the range of the distance for the first thimble pressing pin to move downwards when the ejector pin abuts against the first thimble pressing pin can be changed, so that the opening degree of the first valve core on the first air outlet channel can be controlled, namely the opening degree of the first air outlet channel can be adjusted, and the flow rate of inflation gas, namely the inflation speed, of the controller can be controlled;

4. the acting force generated by the disk magnet and the cylindrical magnet can overcome the gravity at the end of the handle, so that the handle structure is kept stable in the horizontal direction, the adjusting nut is not contacted with the second piston, and the second air outlet channel is in a closed non-working state in the state.

Drawings

FIG. 1 is a cross-sectional view of the present high pressure inflation valve.

Fig. 2 is a sectional view of the first valve seat, the first valve element, the second return spring, the steel ball, and the like.

FIG. 3 is a structural view of the high pressure inflation valve during inflation.

FIG. 4 is a state diagram of the high pressure inflation valve when deflated.

In the figure, 1, valve seat; 1a, an air inlet; 1b, an air outlet; 1c, an air leakage opening; 1d, a first mounting cavity; 1e, a second mounting cavity; 1f, a gas passage; 2. a first valve core seat; 2a, a first inner cavity; 2b, an air closing cover; 2b1, a first outlet channel; 2c, a support cylinder; 2d, sintering the filter; 2e, a valve core end cover; 2e1, a first intake passage; 3. a first valve spool; 4. a second return spring; 5. a steel ball; 6. a thimble seat; 61. an inner cavity of the thimble; 7. pressing a pin by a first thimble; 8. a first piston; 81. a first convex edge; 9. a first return spring; 10. a first seal ring; 11. a second seal ring; 12. a third seal ring; 13. an O-shaped sealing ring; 14. a second piston; 141. a second convex edge; 15. a third return spring; 16. a second spool seat; 161. a second intake passage; 162. a second air outlet channel; 17. a second valve core; 18. a fourth return spring; 19. a fourth seal ring; 20. a handle seat; 201. a handle mounting groove; 21. a nut seat; 22. adjusting the nut; 23. a bolt; 231. a knock pin; 24. a handle; 25. a cake magnet; 26. a cylindrical magnet.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in FIG. 1, the high pressure inflation valve comprises a handle structure and a valve seat 1 provided with an air inlet 1a, an air outlet 1b, an air release port 1c, a first mounting cavity 1d, a second mounting cavity 1e and an air passing channel 1 f. Install in the first installation cavity 1d and aerify the case subassembly, install the case subassembly that loses heart in the second installation cavity 1e, first installation cavity 1d is through air passage 1f and second installation cavity 1e intercommunication.

Specifically, as shown in fig. 1 and 2, the charging spool assembly includes a first spool seat 2, a first spool 3, and a first drive mechanism. The first valve core seat 2 is internally provided with a first inner cavity 2a, the first valve core seat 2 comprises an air closing cover 2b, a support cylinder 2c, a sintered filter 2d and a valve core end cover 2e which are sequentially connected and installed from top to bottom, the air closing cover 2b is provided with a first air outlet channel 2b1, the valve core end cover 2e is provided with a first air inlet channel 2e1, the first inner cavity 2a is communicated with the air inlet 1a through a first air inlet channel 2e1, and the first air outlet channel 2b1 of the first inner cavity 2a is communicated with the first installation cavity 1 d. A steel ball 5 and a second return spring 4 which drives the first valve core 3 to be upward all the time to seal the first air outlet channel 2b1 are arranged in the first inner cavity 2a, the steel ball 5 is blocked at the position of a first air inlet channel 2e1, and the upper end and the lower end of the second return spring 4 are respectively abutted against the first valve core 3 and the steel ball 5; furthermore, the inner wall of the first air outlet channel 2b1 has a conical surface, the corresponding first valve core 3 is an air closing cone with a conical surface structure, the upper end of the air closing cone is a driving end and extends out of the upper side of the first air outlet channel 2b1, the lower end of the air closing cone has a conical surface and is matched with the conical surface of the inner wall of the first air outlet channel 2b1, and the conical surface structure can effectively improve the sealing and plugging effect and is convenient to control. The second return spring 4 is in a compressed state in an initial state, that is, the second return spring always has a tendency of driving the gas-closing cone to push upwards to seal and close the first gas outlet channel 2b1, and the gas-closing cone always pushes against the first gas outlet channel 2b1 under the action of the self-restoring force of the second return spring 4 to completely close the first gas outlet channel 2b1, which is in a non-inflation state at this time. When the high-pressure inflation valve is connected with a high-pressure air source, high-pressure air output by the high-pressure air source enters the first air inlet channel 2e1 through the air inlet 1a, then jacks the steel ball 5 under the action of air pressure difference, and enters the first inner cavity 2a, and is blocked by the air-blocking cone in the first inner cavity 2a and does not pass through the first air outlet channel 2b1 any more.

Further, the first driving mechanism is installed right above the first valve core seat 2 and includes an ejector pin seat 6, a first ejector pin press pin 7 and a first piston 8, an ejector pin inner cavity 61 is formed in the ejector pin seat 6, the first ejector pin press pin 7 and the first piston 8 are installed in the ejector pin inner cavity 61, the first piston 8 is fixedly connected to the lower end face of the first ejector pin press pin 7, the first piston 8 is located right above the first valve core seat 2, and the first piston 8 and the first ejector pin press pin 7 can move up and down in the ejector pin inner cavity 61. Wherein, the middle part of the first piston 8 protrudes radially to form a first convex edge 81, the first piston 8 is sleeved with a first return spring 9, one end of the first return spring 9 abuts against the first convex edge 81, and the other end abuts against the first valve core seat 2; the first return spring 9 is in a compressed state, and the restoring force of the first return spring is used for overcoming the self gravity of the first piston 8 and the first ejector pin pressing pin 7, so that the first piston 8 does not apply force to the driving end of the gas-closing cone in an initial state, and the gas-closing cone is guaranteed to completely seal and block the first gas outlet channel 2b 1. When the first piston 8 moves downwards, the first piston 8 pushes the gas-closed cone to open and move downwards, so that the first gas outlet channel 2b1 is opened, high-pressure gas in the first inner cavity 2a enters the first mounting cavity 1d from the first gas outlet channel 2b1, and then enters the second mounting cavity 1e and the gas outlet 1b through the gas channel 1f in sequence to inflate the gas storage device.

Further, the upper end of the thimble seat 6 is connected with the inner wall of the first installation cavity 1d through a first seal ring 10 in a sealing manner, the middle of the first piston 8 is connected with the thimble inner cavity 61 through a second seal ring 11 in a sealing manner, and the upper end of the first valve core seat 2 is connected with the first installation cavity 1d through a third seal ring 12 in a sealing manner. The sealing rings are provided to seal a gap between the first driving mechanism and the first valve core seat 2 in the first installation cavity 1d from the outside, and since high-pressure gas enters the gap after exiting from the first gas outlet channel 2b1 and then enters the second installation cavity 1e from the gas passing channel 1f, the gap is ensured to be sealed from the outside, otherwise, the high-pressure gas is decompressed in the gap. And, an O-shaped sealing ring 13 is arranged between the sintered filter 2d and the valve core end cover 2e, and the same is true. The O-ring 13 is used to seal the first cavity 2a from the outside, so as to prevent the high-pressure gas from being decompressed in the first cavity 2a, thereby improving the inflation effect of the high-pressure gas.

As shown in fig. 1, the run-flat spool assembly includes a second spool seat 16, a second spool 17, and a second piston 14, and a second inner cavity is formed in the second spool seat 16. The second piston 14 has the same structure as the first piston 8, a second convex edge 141 protrudes from the middle of the second piston in the radial direction, a third return spring 15 is sleeved on the second piston 14, one end of the third return spring 15 abuts against the second convex edge 141, and the other end of the third return spring abuts against the second spool seat 16. The second valve core seat 16 has the same structure as the first valve core seat 2, and is provided with a second air inlet channel 161 and a second air outlet channel 162, the second air inlet channel 161 is communicated with the air outlet 1b, and the second air outlet channel 162 is communicated with the air outlet 1 c; the second valve core 17 and the first valve core 3 have the same structure, the second air outlet channel 162 and the first air outlet channel 2b1 have the same structure, the fourth return spring 18 is installed in the second inner cavity, the fourth return spring 18 is in a compressed state in the initial state, the trend of always enabling the second valve core 17 to seal and block the second air outlet channel 162 is achieved, and the upper end and the lower end of the fourth return spring 18 respectively abut against the side walls of the second valve core 17 and the second air inlet channel 161. The second piston 14 is located right above the second valve core seat 16 and the second piston 14 can drive the second valve core 17 to move downwards to open the second air outlet channel 162 to communicate with the air outlet 1 c.

The second valve core seat 16 is connected to the second mounting cavity 1e in a sealing manner through a fourth sealing ring 19, and the function of the second valve core seat is to seal the air outlet 1b from the outside, so that the high-pressure air at the air outlet 1b is prevented from being decompressed.

Further, as shown in fig. 1, the handle structure includes a handle seat 20, a stud, a handle 24 and a nut seat 21, the handle seat 20 is provided with a handle mounting groove 201, three sides of the handle mounting groove 201 are provided with groove walls, a fourth side edge is open and penetrates to the side surface of the handle seat 20, and the three groove walls are respectively a left side groove wall and a right side groove wall located at the left side and a rear side groove wall opposite to the open side. The stud penetrates through the nut seat 21, two ends of the stud extend out of two ends of the nut seat 21 respectively, an external thread is arranged on the outer half peripheral wall of the outer side of the stud, the outer end of the outer half peripheral wall of the stud is in threaded connection with the handle 24, the inner end of the stud is provided with the ejector pin 231, the middle of the nut seat 21 is provided with a groove, the groove is internally provided with the adjusting nut 22, the adjusting nut 22 is in threaded connection with the bolt 23, and the adjusting nut 22 is rotated to drive the bolt 23 to move left. The nut seat 21 is rotatably connected to the left and right side walls of the handle mounting groove 201 through a rotating pin, the upper end of the first thimble pressing pin 7 extends into the handle mounting groove 201, the upper end of the second piston 14 extends into the handle mounting groove 201, the rotating pin is located right above the first thimble pressing pin 7, and the adjusting nut 22 is located right above the second piston 14. When the handle 24 is lifted up to a vertical state, as shown in fig. 3, after the bolt 23 rotates around the rotation pin, the ejector pin 231 rotates to abut against the first ejector pin pressing pin 7, the first ejector pin pressing pin 7 is driven, the first piston 8 moves downwards to move the first valve core 3 downwards, so that the first air outlet channel 2b1 is opened, and air inflation is performed; when the handle 24 rotates downwards, as shown in fig. 4, after the bolt 23 rotates around the rotation pin, the knock pin 231 thereof is away from the first knock pin 7, and the adjusting nut 22 abuts against the second piston 14 and drives the second piston 14 to move downwards, so as to drive the second valve core 17 to move downwards, so that the second air outlet channel 162 is opened, and air is discharged. The inflation work and the deflation work can be respectively controlled through one handle 24, the operation is convenient, the design is ingenious, the structure is simplified, and meanwhile, the cost is reduced.

Under the action of the adjusting nut 22, the range of the distance that the first ejector pin pressing pin 7 moves downwards when the ejector pin 231 abuts against the first ejector pin pressing pin 7 can be changed through adjustment of the adjusting nut 22, so that the opening degree of the first valve core 3 on the first air outlet channel 2b1 can be controlled, that is, the opening degree of the first air outlet channel 2b1 can be adjusted, and the flow rate of inflation gas, that is, the inflation speed of the controller can be controlled. Specifically, when the adjusting nut 22 rotates clockwise, the bolt 23 moves rightward relative to the nut seat 21, and the reaction is that the knock pin 231 moves upward for a certain distance in fig. 3, so that the gap between the gas-closing cone and the gas-closing cover 2b is reduced, that is, the opening of the first gas outlet channel 2b1 is reduced, and the gas filling speed is reduced; on the contrary, when the adjusting nut 22 rotates counterclockwise, the bolt 23 moves leftward relative to the nut seat 21, and the ejector pin 231 moves downward for a certain distance in fig. 3, so that the gap between the air-closing cone and the air-closing cover 2b is enlarged, that is, the opening of the first air outlet channel 2b1 is enlarged, and the inflation speed is increased. Therefore, the adjusting nut 22 can change the inflation speed and improve the application range.

Further, a disk magnet 25 is embedded in the rear side wall of the handle mounting groove 201, a cylindrical magnet 26 is embedded in the end of the bolt 23 close to the top pin 231, and the magnetic properties of the cylindrical magnet 26 and the disk magnet 25 are opposite. The magnetic attraction between the cylindrical magnet 26 and the disc magnet 25 overcomes the gravity at the end of the handle 24 to keep the handle structure horizontally stable so that the adjusting nut 22 does not contact the second piston 14, so that the second air outlet channel 162 is in a closed non-operating state. If this magnetic attraction is not present, the bolt 23 and the handle 24 will rotate downward under their own weight, so that the adjusting nut 22 will abut against the second piston 14 and drive the second piston 14 and the second valve spool 17 downward, thereby opening the second outlet passage 162.

The working principle of the high-pressure inflation valve is as follows:

in the initial state, the handle 24 and the bolt 23 are in the horizontal state, one end of the handle is rotatably connected to the handle seat 20 through the rotating pin, the other end of the handle is suspended under the magnetic force of the cylindrical magnet 26 and the disk magnet 25, and at the moment, the inflation and the deflation are both closed. When inflation is needed, the handle 24 is lifted up to the vertical direction, the ejector pin 231 moves downwards to drive the first ejector pin pressing pin 7, the first piston 8 and the first valve core 3 to move downwards, the first valve core 3 does not block the first air outlet channel 2b1, the first air outlet channel 2b1 is opened, high-pressure gas sequentially passes through the air inlet 1a, the first inner cavity 2a, the first air outlet channel 2b1, the first mounting cavity 1d and the air passing channel 1f from a high-pressure gas source to enter the second mounting cavity 1e, and then is output to gas storage equipment from the air outlet, and the high-pressure gas is closed when the air is released, so that the high-pressure gas in the air outlet 1b cannot be released. When the high-pressure inflation valve needs to be separated from the air outlet device after inflation is finished, the handle 24 is pressed downwards to rotate, at the moment, the ejector pin 231 is separated from the first ejector pin pressing pin 7, the first ejector pin pressing pin 7 and the first valve core 3 are reset under the action of the first return spring 9 and the second return spring 4 respectively, the first air outlet channel 2b1 is closed, and inflation is not performed any more. When the handle 24 is pressed down to enable the adjusting bolt 23 to contact the second piston 14 and drive the second piston 14 and the second valve core 17 to move downwards, the second valve core 17 does not block the second air outlet channel 162 any more and starts to release air, and at the moment, high-pressure air in the air outlet 1b, the air transmission pipeline and the second inner cavity sequentially passes through the second air outlet channel 162 and the air release port 1c to be discharged and released for pressure, so that the high-pressure air in the air outlet 1b and the air transmission pipeline is released and reduced in pressure, the high-pressure air is prevented from being sprayed out to damage a human body when the high-pressure inflation valve is separated from the air outlet device, and safety is guaranteed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a high pressure inflation valve, is including opening disk seat (1) that has air inlet (1a) and gas outlet (1b), installs handle structure on disk seat (1), install on disk seat (1) and aerify case subassembly, its characterized in that: still open on disk seat (1) and lose heart mouth (1c), the case subassembly that loses heart is still installed on disk seat (1), handle structure can drive the aforesaid and aerify switching on or closing of the above-mentioned air inlet of case subassembly work control (1a) and air outlet (1b), handle structure can drive the aforesaid and lose heart the closing or switching on of the above-mentioned air outlet of case subassembly work control (1b) and the mouth (1c) of losing heart.

2. The high-pressure inflation valve according to claim 1, wherein the valve seat (1) has a first mounting cavity (1d) formed therein, the inflation valve core assembly is mounted in the first mounting cavity (1d), the inflation valve core assembly comprises a first valve core seat (2), a first valve core (3) and a first driving mechanism, a first inner cavity (2a) is formed in the first valve core seat (2), the upper end and the lower end of the first valve core seat (2) are respectively provided with a first air outlet channel (2b1) and a first air inlet channel (2e1) communicated with the first inner cavity (2a), the first air inlet channel (2e1) is communicated with the air inlet (1a), the first driving mechanism comprises a needle seat (6), a needle inner cavity (61) is formed in the needle seat (6), a first needle pressing pin (7) is mounted in the needle inner cavity (61), and a first piston (8) fixedly connected to the first needle pressing pin (7) is mounted in the needle inner cavity (61), a first convex edge (81) is radially protruded at the middle part of the first piston (8), a first return spring (9) is sleeved on the first piston (8), one end of the first return spring (9) is abutted against the first convex edge (81), the other end is abutted against the first valve core seat (2), a steel ball (5) and a second return spring (4) which drives the first valve core (3) to be always upward to seal the first air outlet channel (2b1) are arranged in the first inner cavity (2a), the steel ball (5) is blocked at the first air inlet channel (2e1), the upper end and the lower end of the second return spring (4) are respectively abutted against the first valve core (3) and the steel ball (5), the first piston (8) is positioned above the first valve core seat (2), and when the first piston (8) moves downwards, the first valve core (3) can be driven to move downwards to open the first air outlet channel (2b 1).

3. The high-pressure charging valve according to claim 2, wherein the first valve core seat (2) comprises a gas-closing cover (2b), a support cylinder (2c), a sintered filter (2d) and a valve core end cover (2e) which are sequentially connected from top to bottom, and the first gas outlet channel (2b1) and the first gas inlet channel (2e1) are respectively arranged on the gas-closing cover (2b) and the valve core end cover (2 e).

4. A high pressure gas charging valve according to claim 3, characterized in that the inner wall of the first gas outlet channel (2b1) has a conical surface, and the corresponding first valve core (3) is a closed cone with a conical surface structure.

5. The high-pressure inflation valve according to claim 3 or 4, characterized in that the upper end of the needle-lift seat (6) is connected with the inner wall of the first installation cavity (1d) in a sealing manner through a first sealing ring (10), the middle of the first piston (8) is connected with the needle-lift inner cavity (61) in a sealing manner through a second sealing ring (11), and the upper end of the first valve core seat (2) is connected with the first installation cavity (1d) in a sealing manner through a third sealing ring (12); an O-shaped sealing ring (13) is arranged between the sintering filter (2d) and the valve core end cover (2 e).

6. The high-pressure inflation valve according to claim 5, wherein the valve seat (1) is further provided with a second mounting cavity (1e) and a gas passing channel (1f), the first mounting cavity (1d) is communicated with the second mounting cavity (1e) through the gas passing channel (1f), the gas releasing valve core assembly is mounted in the second mounting cavity (1e), the gas releasing valve core assembly comprises a second valve core seat (16), a second valve core (17) and a second piston (14), a second inner cavity is formed in the second valve core seat (16), a second gas outlet channel (162) and a second gas inlet channel (161) which are communicated with the second inner cavity are respectively formed at the upper end and the lower end of the second valve core seat (16), the second gas inlet channel (161) is communicated with the gas outlet (1b), and a second convex edge (141) radially protrudes from the middle part of the second piston (14), the cover is equipped with third reset spring (15) on second piston (14), third reset spring (15) one end is supported and is leaned on above-mentioned second protruding edge (141), and the other end supports and leans on above-mentioned second valve core seat (16), install in the second inner chamber and have and drive above-mentioned second valve core (17) and upwards make above-mentioned second air outlet channel (162) confined fourth reset spring (18) all the time, fourth reset spring (18) upper end and lower extreme support respectively and lean on the lateral wall of above-mentioned second valve core (17) and second air inlet channel (161) mouth department, and above-mentioned second piston (14) can drive above-mentioned second valve core (17) when being located second valve core seat (16) top and second piston (14) and moving down and make above-mentioned second air outlet channel (162) open and above-mentioned disappointing mouth (1c) intercommunication.

7. A high pressure inflation valve according to claim 6, wherein the second valve cartridge seat (16) is of the same construction as the first valve cartridge seat (2); the structure of the second outlet passage (162) is the same as that of the first outlet passage (2b1), and the structure of the second valve spool (17) is the same as that of the first valve spool (3); the second valve core seat (16) is hermetically connected with the second mounting cavity (1e) through a fourth sealing ring (19).

8. The high pressure inflation valve according to claim 7, wherein the handle structure comprises a handle seat (20), a stud, a handle (24) and a nut seat (21), the handle seat (20) is provided with a handle mounting groove (201), the stud is arranged in the nut seat (21) in a penetrating way, two ends of the stud respectively extend out of two ends of the nut seat (21), the outer end of the stud is in threaded connection with the handle (24), the inner end of the stud is provided with a knock pin (231), the nut seat (21) is rotatably connected on the left and right side groove walls of the handle mounting groove (201) through a rotating pin which is positioned right above the first thimble pressing pin (7), when the bolt (23) rotates around the rotating pin and then is positioned in the same direction with the first thimble pressing pin (7), the ejector pin (231) pushes the first ejector pin pressing pin (7) to move downwards.

9. A high pressure inflation valve as claimed in claim 8, wherein a groove is formed in the middle of the nut seat (21), an adjusting nut (22) is provided in the groove, the adjusting nut (22) is in threaded connection with the bolt (23), and the bolt (23) can be driven to move left and right relative to the nut seat (21) by rotating the adjusting nut (22); the adjusting nut (22) is positioned right above the second piston (14), and when the adjusting nut (22) rotates downwards around the rotating pin, the adjusting nut abuts against the second piston (14) and drives the second piston (14) to move downwards.

10. The high pressure inflation valve as claimed in claim 8, wherein the handle mounting groove (201) comprises a rear groove wall and the left and right groove walls, the side of the handle mounting groove (201) opposite to the rear groove wall is through to the side of the handle seat (20), a disc magnet (25) is embedded in the rear groove wall, a cylindrical magnet (26) is embedded in the end of the bolt (23) close to the top pin (231), and the cylindrical magnet (26) and the disc magnet (25) have opposite magnetism.