CN221075313U - Pressure maintaining valve - Google Patents
Pressure maintaining valve Download PDFInfo
- Publication number
- CN221075313U CN221075313U CN202323266775.7U CN202323266775U CN221075313U CN 221075313 U CN221075313 U CN 221075313U CN 202323266775 U CN202323266775 U CN 202323266775U CN 221075313 U CN221075313 U CN 221075313U
- Authority
- CN
- China
- Prior art keywords
- pressure maintaining
- sealing
- valve
- motion
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 95
- 230000033001 locomotion Effects 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a pressure maintaining valve which comprises a valve body and a pressure maintaining moving assembly, wherein a pipe core mounting hole, a pressure maintaining piece mounting hole and a sealing taper hole are sequentially formed in the valve body from top to bottom, the three holes are positioned on the same vertical central line and are mutually communicated, the pressure maintaining moving assembly is movably mounted at the positions of the pressure maintaining piece mounting hole and the sealing taper hole, the pipe core assembly is mounted at the pipe core mounting hole, and a threaded mounting section is arranged on the outer wall of the bottom end of the valve body.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to a pressure maintaining valve.
Background
The pressure maintaining valve is an important part applied to automobile air suspension, and mainly plays a role in air intake and pressure maintaining (namely, air can be smoothly taken in, but the phenomenon of air backflow and leakage cannot occur after air intake is disconnected). The existing pressure maintaining valve products of enterprises have the defects of more assembly parts, high assembly requirement, high cost and the like. In order to keep the core competitiveness of the product in the market and meet the development trend of miniaturization and light weight of automobile parts, enterprises are urgent to carry out structural optimization design on the pressure maintaining valve product, and the scheme is generated.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a pressure maintaining valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a pressure maintaining valve, includes valve body and pressure maintaining motion subassembly, die mounting hole, pressure maintaining piece mounting hole and sealed taper hole have been seted up in proper order from top to bottom in the valve body, die mounting hole, pressure maintaining piece mounting hole and sealed taper hole are in same vertical midline, and communicate each other, pressure maintaining motion subassembly movable mounting is in pressure maintaining piece mounting hole and sealed taper hole position, die assembly is installed to die mounting hole position, be equipped with the screw thread installation section on the valve body bottom outer wall.
The thread installation section is provided with a valve installation sealing groove, and a first sealing ring is installed at the valve installation sealing groove.
The pressure maintaining motion assembly comprises a motion valve core and a spring, wherein the motion valve core is inserted in a pressure maintaining piece mounting hole, an air inlet channel is formed in the motion valve core, a plurality of air holes are formed in the side wall of the motion valve core, the top of the air inlet channel is open, the bottom of the air inlet channel is communicated with the air holes, the bottom of the motion valve core is provided with a sealing head, the sealing head is arranged at a sealing taper hole in an extending mode, a second sealing ring is arranged at the sealing head, the spring is sleeved outside the motion valve core, one end of the spring is connected with the bottom of the pressure maintaining piece mounting hole, and the other end of the spring is in contact with a top flange of the motion valve core.
The vent hole is arranged above the sealing head, and can be communicated with the sealing taper hole in a descending way when the moving valve core moves in a descending way.
The outer diameter of the second sealing ring is smaller than the largest dimension of the sealing taper hole, and the outer diameter of the second sealing ring is larger than the smallest diameter of the sealing taper hole.
The pipe core assembly comprises a fixed sleeve, a movable clamp and a gasket, the fixed sleeve is fixedly arranged in a pipe core installation hole, the gasket is pressed at the position below the fixed sleeve, the movable clamp is movably arranged in the fixed sleeve in a lifting mode, a third sealing ring is arranged below the gasket, a waterproof and dustproof cover is arranged at the top of the valve body, an air pipe can be directly inserted into the pipe core assembly and then is pressed on the movable valve core, and the third sealing ring and the waterproof and dustproof cover can be kept in sealing contact with the air pipe wall.
The beneficial effects of the utility model are as follows: the utility model has the advantages of small design, few parts, convenient assembly and good operation comfort, and the utility model gives consideration to the product quality and the product cost, not only meets the use requirement of equipment, but also has core market competitiveness, and is beneficial to the maintenance and the occupation of market share of enterprises.
Drawings
Fig. 1 is a cross-sectional view of the structure of the present utility model.
In the figure: the valve body 1, the tube core mounting hole 11, the pressure maintaining piece mounting hole 12, the sealing taper hole 13, the threaded mounting section 14, the valve mounting sealing groove 15, the first sealing ring 16, the pressure maintaining moving assembly 2, the moving valve core 21, the air inlet channel 211, the vent hole 212, the sealing head 213, the spring 22, the second sealing ring 23, the tube core assembly 3, the fixed sleeve 31, the movable clip 32, the gasket 33, the third sealing ring 34 and the waterproof and dustproof cover 35.
Detailed Description
The utility model is further described with reference to the drawings and detailed description, wherein the description of the utility model such as "left" and "right" is directed with reference to fig. 1:
As shown in FIG. 1, a pressure maintaining valve comprises a valve body 1 and a pressure maintaining motion assembly 2, wherein a pipe core mounting hole 11, a pressure maintaining piece mounting hole 12 and a sealing taper hole 13 are sequentially formed in the valve body 1 from top to bottom, the pipe core mounting hole 11, the pressure maintaining piece mounting hole 12 and the sealing taper hole 13 are positioned on the same vertical central line and are mutually communicated, the pipe core assembly 3 is arranged at the position of the pipe core mounting hole 11, the pipe core assembly 3 can be inserted with an air pipe, the air pipe is connected with an external air source (an air compressor), the pressure maintaining motion assembly 2 is movably arranged at the positions of the pressure maintaining piece mounting hole 12 and the sealing taper hole 13, the pressure maintaining motion assembly 2 can move up and down, the air inlet requirement is met, the pressure maintaining requirement (the phenomenon of air backflow leakage does not occur), and a threaded mounting section 14 is arranged on the outer wall of the bottom end of the valve body 1.
The valve-mounting sealing groove 15 is formed in the position of the threaded mounting section 14, the first sealing ring 16 is mounted in the position of the valve-mounting sealing groove 15, and the first sealing ring 16 plays a role in sealing and air leakage prevention of the threaded mounting position of the pressure maintaining valve.
The pressure maintaining motion assembly 2 comprises a motion valve core 21 and a spring 22, wherein the motion valve core 21 is inserted in a pressure maintaining piece mounting hole 12, the motion valve core 21 can move up and down along the pressure maintaining piece mounting hole 12, an air inlet channel 211 is arranged on the motion valve core 21, a plurality of vent holes 212 are arranged on the side wall of the motion valve core 21, the top of the air inlet channel 211 is open, the air inlet channel 211 is communicated with a tube core mounting hole 11, the bottom of the air inlet channel 211 is communicated with the vent holes 212, the input air flows through the air inlet channel 211 and is then output from the position of the vent holes 212, the bottom end of the motion valve core 21 is provided with a sealing head 213, the sealing head 213 is arranged at the position of a sealing taper hole 13 in an extending manner, a second sealing ring 23 is arranged at the position of the sealing head 213 and can collide with the wall of the sealing taper hole 13 to form the air sealing effect of the position of the sealing taper hole 13, the spring 22 is sleeved outside the motion valve core 21, one end of the spring 22 is connected with the bottom of the mounting hole 12 of the pressure maintaining piece, the other end of the spring 22 is in contact with the top flange of the moving valve core 21, the spring 22 plays a role of supporting the moving valve core 21, in a non-pressure state, the moving valve core 21 has upward movement trend under the action of the elasticity of the spring 22, the second sealing ring 23 is in contact with the inner wall of the sealing taper hole 13, the pressure maintaining valve is in a natural sealing state, as shown in figure 1, when the gas transmission operation is carried out, the gas pipe is inserted, the gas pipe is pressed to push the moving valve core 21 to move downwards, the spring 22 is in a compression state, the second sealing ring 23 is not in contact with the inner wall of the sealing taper hole 13 at the moment, the pressure maintaining valve can form the air inlet effect, when the gas transmission is stopped, the gas pipe is pulled out, the pressure effect of the moving valve core 21 disappears, the dual functions of restoring force of the spring 22 and the gas pressure in the equipment are carried out, the upward effect is formed by the moving valve core 21, the sealing taper hole 13 is formed again, the sealing position is closed, thus, the gas in the equipment cannot flow outwards, so as to meet the pressure maintaining requirement.
The position of seting up of air vent 212 is in sealed head 213 top to satisfy down ventilation, the demand of going up seal, when motion case 21 downstream moved, air vent 212 can down communicate sealed taper hole 13, sealed taper hole 13 direct connection general gas equipment, only air vent 212 falls behind sealed taper hole 13 position, just can form the ventilation effect in the pressure maintaining valve, just can satisfy the demand of admitting air, corresponding, when motion case 21 upstream moved, air vent 212 can break away from sealed taper hole 13 position, in order to cut off the effect of ventilation intercommunication.
The external diameter size of the second sealing ring 23 is smaller than the maximum size of the sealing taper hole 13, the external diameter size of the second sealing ring 23 is larger than the minimum diameter size of the sealing taper hole 13, so that the second sealing ring 23 can be always installed in the sealing taper hole 13 area, when the moving valve core 21 moves downwards, the second sealing ring 23 also moves downwards, a gap is formed between the second sealing ring 23 and the inner wall of the sealing taper hole 13, the gap can be formed to meet ventilation and air intake requirements, when the moving valve core 21 moves upwards, the second sealing ring 23 also moves upwards, the second sealing ring 23 can press and props against the inner wall of the sealing taper hole 13, an air sealing effect at the position of the sealing taper hole 13 is formed, air in the equipment cannot flow outwards, so that the pressure maintaining requirement is met, the moving valve core 21 moves upwards, the sealing pressure maintaining effect is better, and meanwhile, the second sealing ring 23 cannot escape from the position of the sealing taper hole 13 because the external diameter size of the second sealing ring 23 is larger than the minimum diameter size of the sealing taper hole 13.
The tube core assembly 3 comprises a fixed sleeve 31, a movable clip 32 and a gasket 33, wherein the fixed sleeve 31 is fixedly arranged in a tube core mounting hole 11 (a riveting mounting process is adopted), the gasket 33 is pressed at a position below the fixed sleeve 31, the movable clip 32 is movably arranged in the fixed sleeve 31 in a lifting manner, a third sealing ring 34 is arranged below the gasket 33, a waterproof and dustproof cover 35 is arranged at the top of the valve body 1, an air tube can be directly inserted into the tube core assembly 3 and then is pressed against the movable valve core 21, the air tube is inserted from the position of an inner hole of the movable clip 32, the air tube is directly inserted into the movable valve core 21, the movable valve core 21 can be downwards moved to form a ventilation effect, barbs are arranged on the inner side wall of the movable clip 32, when the air tube escapes from the upper part of the air tube, the triangular barbs can be tightened and inserted into the air tube wall to form an anti-falling effect), after ventilation is completed, the movable clip 32 is pushed down by a special tool, the barbs of the movable clip 32 can be supported by the gasket 33, the waterproof and dustproof cover can be smoothly pulled out, after the air tube is pulled out, the air tube is automatically recovered by the force of the spring 22 and the device, the air tube core 21 is directly inserted into the upper part of the air tube core 21, the waterproof and the waterproof cover is completely contacts with the sealing ring 35, the waterproof and the sealing ring is completely sealed by the sealing ring 35, the waterproof and the waterproof cover is formed, the waterproof and the waterproof cover is completely sealed and the sealing cover is formed, the sealing structure is completely and can be conveniently and sealed by the sealing structure and the sealing structure 3, the air tube core is in the air case. The service life is prolonged.
Compared with the traditional pressure maintaining valve product, the pressure maintaining valve has the advantages of less parts, less material consumption, small structure, convenient assembly and production cost saving, and the mass production of the pressure maintaining valve is beneficial to the opening of market sales of enterprises and occupies market share.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. The utility model provides a pressure maintaining valve, includes valve body (1) and pressurize motion subassembly (2), its characterized in that: the novel pressure maintaining valve is characterized in that a tube core mounting hole (11), a pressure maintaining piece mounting hole (12) and a sealing taper hole (13) are sequentially formed in the valve body (1) from top to bottom, the tube core mounting hole (11), the pressure maintaining piece mounting hole (12) and the sealing taper hole (13) are located on the same vertical central line and are mutually communicated, the pressure maintaining moving assembly (2) is movably mounted at the positions of the pressure maintaining piece mounting hole (12) and the sealing taper hole (13), the tube core assembly (3) is mounted at the position of the tube core mounting hole (11), and a thread mounting section (14) is arranged on the outer wall of the bottom end of the valve body (1).
2. A pressure maintaining valve as claimed in claim 1, characterized in that: the valve-mounting sealing groove (15) is formed in the position of the threaded mounting section (14), and the first sealing ring (16) is mounted at the position of the valve-mounting sealing groove (15).
3. A pressure maintaining valve as claimed in claim 1, characterized in that: the pressure maintaining motion assembly (2) comprises a motion valve core (21) and a spring (22), wherein the motion valve core (21) is inserted into a pressure maintaining piece mounting hole (12), an air inlet channel (211) is formed in the motion valve core (21), a plurality of air holes (212) are formed in the side wall of the motion valve core (21), the top of the air inlet channel (211) is open, the bottom of the motion valve core is communicated with the air holes (212), the bottom of the motion valve core (21) is provided with a sealing head (213), the sealing head (213) is arranged at the position of a sealing taper hole (13) in an extending mode, a second sealing ring (23) is arranged at the position of the sealing head (213), the spring (22) is sleeved outside the motion valve core (21), one end of the spring (22) is connected to the bottom of the pressure maintaining piece mounting hole (12), and the other end of the spring (22) is in conflict with the top flange of the motion valve core (21).
4. A pressure maintaining valve as claimed in claim 3, characterized in that: the vent hole (212) is arranged above the sealing head (213), and when the moving valve core (21) moves downwards, the vent hole (212) can be communicated with the sealing taper hole (13) downwards.
5. A pressure maintaining valve as claimed in claim 3, characterized in that: the outer diameter of the second sealing ring (23) is smaller than the largest dimension of the sealing taper hole (13), and the outer diameter of the second sealing ring (23) is larger than the smallest diameter of the sealing taper hole (13).
6. A pressure maintaining valve as claimed in claim 3, characterized in that: the die assembly (3) comprises a fixed sleeve (31), a movable clamp (32) and a gasket (33), wherein the fixed sleeve (31) is fixedly installed in a die installation hole (11), the gasket (33) is pressed at the position below the fixed sleeve (31), the movable clamp (32) is movably installed in the fixed sleeve (31) in a lifting mode, a third sealing ring (34) is installed below the gasket (33), a waterproof and dustproof cover (35) is installed at the top of the valve body (1), an air pipe can be directly inserted through the die assembly (3) and then is pressed on a moving valve core (21), and the third sealing ring (34) and the waterproof and dustproof cover (35) can be in sealing contact with the air pipe wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323266775.7U CN221075313U (en) | 2023-11-30 | 2023-11-30 | Pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323266775.7U CN221075313U (en) | 2023-11-30 | 2023-11-30 | Pressure maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075313U true CN221075313U (en) | 2024-06-04 |
Family
ID=91271242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323266775.7U Active CN221075313U (en) | 2023-11-30 | 2023-11-30 | Pressure maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075313U (en) |
-
2023
- 2023-11-30 CN CN202323266775.7U patent/CN221075313U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221075313U (en) | Pressure maintaining valve | |
| CN117267429B (en) | Timing self-closing valve | |
| CN210739476U (en) | Gas pipeline self-closing valve | |
| CN203926802U (en) | Ready-package air control switch valve | |
| CN214787681U (en) | Short cavity actuator | |
| CN111014473A (en) | Stamping die capable of automatically cooling by air cooling | |
| CN214466381U (en) | Integrated air compensating valve with check valve | |
| CN214889590U (en) | Self-starting air source connector for sliding block | |
| CN219933068U (en) | Novel gas self-closing valve | |
| CN204961435U (en) | Quick pressurized cylinder is kept apart to oil gas | |
| CN212928952U (en) | Two-stage pulse valve | |
| CN217482071U (en) | Self-closing valve | |
| CN208997354U (en) | A kind of reverse-flow pressure reducing valve | |
| CN217127275U (en) | Quartz tube structure with improved quartz tube cap | |
| CN218440850U (en) | Pressure reducing valve for gas cylinder | |
| CN211423521U (en) | Air precision pressure reducing valve | |
| CN221221623U (en) | Normally closed structure ultrahigh vacuum pneumatic baffle valve | |
| CN216666566U (en) | Electric shunt regulating valve | |
| CN217634095U (en) | Multi-stage sealed high-pressure air inlet and outlet valve | |
| CN215059524U (en) | Service valve for liquefied petroleum gas cylinder | |
| CN219452992U (en) | Steady flow type pipeline gas self-closing valve | |
| CN220416353U (en) | Gas self-closing valve | |
| CN220212642U (en) | Air release valve of pressure cooker | |
| CN217713769U (en) | double-H valve assembly | |
| CN221221657U (en) | Pressure relief valve for transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |