CN215908374U - Air pressure adjusting device - Google Patents
Air pressure adjusting device Download PDFInfo
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- CN215908374U CN215908374U CN202122361955.8U CN202122361955U CN215908374U CN 215908374 U CN215908374 U CN 215908374U CN 202122361955 U CN202122361955 U CN 202122361955U CN 215908374 U CN215908374 U CN 215908374U
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Abstract
The utility model discloses an air pressure adjusting device, and relates to the technical field of automobile parts. The air pressure adjusting device comprises a shell, a sealing valve, an electromagnetic valve and a pressure sensor. The shell is provided with an air inlet channel and an air outlet channel; the sealing valve comprises a first valve body, an elastic part and a valve core arranged in the first valve body in a sliding manner, two ends of the elastic part are respectively abutted against the first valve body and the valve core, the first valve body is provided with an air inlet hole and an air outlet hole, the air inlet hole is communicated with the air inlet channel, the air outlet hole is communicated with the air outlet channel, and the valve core is in sealing abutting contact with the edge of the air outlet hole to separate the air inlet channel from the air outlet channel; the electromagnetic valve comprises a second valve body, an electromagnetic coil and an armature, the electromagnetic coil is arranged in the second valve body, one end of the armature penetrates through the electromagnetic coil, and the other end of the armature extends to the valve core; the detection end of the air pressure sensor extends into the exhaust passage. The air pressure adjusting device can monitor the air pressure in the exhaust channel in real time and accurately control the air pressure in the exhaust channel.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an air pressure adjusting device.
Background
From the history of automobile development, driving comfort, maneuverability, power and economy are all major factors to be considered. With the continuous development of the technical level of AMT in China, the AMT gearbox for improving driving comfort is gradually installed on a large automobile, and a large number of tests prove that the pneumatic AMT large automobile has good dynamic property and economy. The pneumatic AMT gearbox realizes gear shifting through the control of the air pressure adjusting device, controls the switching of high and low gears of the gearbox, and the quality of the air pressure adjusting device directly determines the comfort, the controllability, the dynamic property and the economical efficiency of the performance of the automobile, so that the importance is self-evident.
However, the existing air pressure adjusting device cannot monitor the air pressure value of the shifting fork in real time through the exhaust channel of the existing air pressure adjusting device, so that the accurate control of the air pressure cannot be realized, and the shifting fork cannot be easily shifted due to the fact that the air pressure in the exhaust channel is too large and the service life of the shifting fork is shortened or the air pressure is too small.
In view of the above problems, it is desirable to develop an air pressure adjusting device to solve the problem that the air pressure of the exhaust passage cannot be monitored in real time and thus cannot be precisely controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air pressure adjusting device which can monitor the air pressure in an exhaust channel in real time and accurately control the air pressure in the exhaust channel.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an air pressure regulating device comprising:
a housing provided with an intake passage and an exhaust passage;
the sealing valve comprises a first valve body, an elastic piece and a valve core arranged in the first valve body in a sliding manner, the first valve body is arranged in the shell, two ends of the elastic piece are respectively abutted against the first valve body and the valve core, the first valve body is provided with an air inlet hole and an air outlet hole, the air inlet hole is communicated with the air inlet channel, the air outlet hole is communicated with the air outlet channel, and the valve core is abutted against the edge of the air outlet hole in a sealing manner so as to block the air inlet channel and the air outlet channel;
the electromagnetic valve comprises a second valve body, an electromagnetic coil and an armature, the second valve body is arranged in the shell, the electromagnetic coil is arranged in the second valve body, one end of the armature penetrates through the electromagnetic coil, the other end of the armature extends to the valve core, and the armature pushes the valve core under the driving of the electromagnetic coil;
and the detection end of the air pressure sensor extends into the exhaust channel.
Preferably, the exhaust valve is arranged in the shell, the valve core is of a hollow structure, one end of the valve core is communicated with the exhaust valve, the other end of the valve core extends out of the first valve body and is communicated with the exhaust channel, and the armature is sealed when abutted against the valve core so as to block the valve core and the exhaust channel.
Preferably, a lip-shaped sealing ring is arranged between the valve core and the shell.
Preferably, the sealing valve further includes an annular gasket, the gasket is disposed at one end of the valve core close to the exhaust hole, and both the edge of the exhaust hole and the armature abut against the gasket.
Preferably, the solenoid valve further includes a gasket, the armature includes a body and a rod connected to the body, the gasket is disposed at one end of the body close to the rod, and when the armature pushes the valve core, the gasket abuts against the second valve body.
Preferably, an air pressure balance channel is arranged in the rod part in a penetrating manner, one end of the air pressure balance channel is communicated with the exhaust channel, and the other end of the air pressure balance channel is communicated with the inside of the second valve body.
Preferably, the solenoid valve further includes a sliding bearing, the sliding bearing is fixedly disposed on the second valve body, and the armature is disposed through the sliding bearing and slidably abuts against the sliding bearing.
Preferably, the casing is provided with first apron, first apron with the casing can be dismantled and be connected, first apron with be provided with first sealing washer between the casing.
Preferably, the air pressure sensor further comprises a circuit board, and the circuit board is electrically connected with the air pressure sensor and the electromagnetic coil.
Preferably, the cover plate further comprises a connector, the connector is arranged on the first cover plate, and the connector is electrically connected with the circuit board.
The utility model has the beneficial effects that:
the utility model provides an air pressure adjusting device. In the air pressure adjusting device, an air inlet channel of the shell is connected with air supply structures such as an air pipe joint, an air outlet channel is connected with a gear shifting fork, and therefore gear shifting is achieved by utilizing the air pressure to drive the gear shifting fork. An operator pushes the valve core of the sealing valve through the armature of the electromagnetic valve to separate the valve core from the exhaust hole, gas enters the exhaust channel from the air inlet channel, and when the air pressure in the exhaust channel reaches the pressure for pushing the gear shifting fork, gear shifting is completed. At the moment, when the air pressure sensor detects that the air pressure value of the exhaust passage reaches a preset value, the electromagnetic coil is controlled to reduce the current, so that the valve core is pushed by the elastic piece to be abutted against the edge of the exhaust hole, the air inlet passage and the exhaust passage are separated, and the air pressure in the exhaust passage is kept unchanged.
This atmospheric pressure adjusting device can carry out real-time supervision to the atmospheric pressure in the exhaust passage, and the atmospheric pressure size in the accurate control exhaust passage to make the atmospheric pressure in the exhaust passage can not be too big or the undersize, can enough guarantee the smooth completion of shifting, can not cause the damage to the shift fork of shifting because of atmospheric pressure is too big again, improved life.
Drawings
FIG. 1 is a cross-sectional view of an air pressure regulating device provided by the present invention;
figure 2 is a cross-sectional view of a sealing valve provided by the present invention;
FIG. 3 is a cross-sectional view of a solenoid valve provided by the present invention;
fig. 4 is a schematic structural diagram of an air pressure adjusting device provided by the utility model.
In the figure:
1. a housing; 2. a sealing valve; 3. an electromagnetic valve; 4. an air pressure sensor; 5. an exhaust valve; 6. a lip-shaped seal ring; 7. a circuit board; 8. a connector; 9. a waterproof vent valve;
11. an air intake passage; 12. an exhaust passage; 13. a first cover plate; 14. a first seal ring; 15. a second cover plate; 16. a second seal ring; 21. a first valve body; 22. an elastic member; 23. a valve core; 24. a gasket; 31. a second valve body; 32. an electromagnetic coil; 33. an armature; 34. a gasket; 35. a sliding bearing;
331. a rod portion; 332. a body;
3311. and a gas pressure balancing channel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
The present embodiment provides an air pressure adjusting apparatus. As shown in fig. 1, the air pressure adjusting device includes a housing 1, a sealing valve 2, an electromagnetic valve 3, and an air pressure sensor 4. The housing 1 is provided with an intake passage 11 and an exhaust passage 12. The sealing valve 2 comprises a first valve body 21, an elastic member 22 and a valve core 23 slidably disposed in the first valve body 21, the first valve body 21 is disposed in the housing 1, two ends of the elastic member 22 are respectively abutted against the first valve body 21 and the valve core 23, the first valve body 21 is provided with an air inlet hole and an air outlet hole, the air inlet hole is communicated with the air inlet channel 11, the air outlet hole is communicated with the air outlet channel 12, and the valve core 23 is abutted against the edge of the air outlet hole in a sealing manner to block the air inlet channel 11 and the air outlet channel 12. The electromagnetic valve 3 comprises a second valve body 31, an electromagnetic coil 32 and an armature 33, the second valve body 31 is arranged in the housing 1, the electromagnetic coil 32 is arranged in the second valve body 31, one end of the armature 33 penetrates through the electromagnetic coil 32, the other end of the armature 33 extends to the valve core 23, and the armature 33 pushes against the valve core 23 under the driving of the electromagnetic coil 32. The detection end of the air pressure sensor 4 extends into the exhaust passage 12.
In the air pressure adjusting device, an air inlet channel 11 of a shell 1 is connected with air supply structures such as an air pipe joint, an air outlet channel 12 is connected with a shifting fork, and therefore shifting is achieved by utilizing the air pressure to drive the shifting fork. An operator pushes the valve core 23 of the sealing valve 2 through the armature 33 of the electromagnetic valve 3, so that the valve core 23 is separated from the exhaust hole, gas enters the exhaust channel 12 from the air inlet channel 11, and when the air pressure in the exhaust channel 12 reaches the state of pushing the gear shifting fork, gear shifting is finished. At this time, when the air pressure sensor 4 detects that the air pressure value of the exhaust passage 12 reaches a preset value, the electromagnetic coil 32 is controlled to reduce the current, so that the valve core 23 is pushed by the elastic element 22 to abut against the edge of the exhaust hole, thereby isolating the air inlet passage 11 and the exhaust passage 12, and keeping the air pressure in the exhaust passage 12 unchanged.
This atmospheric pressure adjusting device can carry out real-time supervision to the atmospheric pressure in the exhaust passage 12, and the atmospheric pressure size in the accurate control exhaust passage 12 to make the atmospheric pressure in the exhaust passage 12 can not be too big or the undersize, can enough guarantee the smooth completion of shifting, can not cause the damage to the shift fork that shifts because of atmospheric pressure is too big again, improved life.
Preferably, the air pressure adjusting device further comprises an exhaust valve 5, the exhaust valve 5 is arranged in the housing 1, the valve core 23 is of a hollow structure, one end of the valve core 23 is communicated with the exhaust valve 5, the other end of the valve core 23 extends out of the first valve body 21 and is communicated with the exhaust channel 12, and the armature 33 is sealed when abutting against the valve core 23 so as to block the valve core 23 and the exhaust channel 12.
The armature 33 abuts against the valve element 23, and the gas in the exhaust passage 12 is not allowed to circulate to the outside to realize a pressure maintaining state, thereby maintaining the operating position of the shift fork. If the pressure in the exhaust passage 12 needs to be reduced when the pressure is maintained, the operator can disengage the armature 33 from the valve element 23 by changing the current in the electromagnetic coil 32, and at this time, the gas in the exhaust passage 12 is discharged through the valve element 23 and the exhaust valve 5, so as to reduce the pressure in the exhaust passage 12.
In order to improve the sealing property between the valve element 23 and the housing 1, a lip seal 6 is provided between the valve element 23 and the housing 1, as shown in fig. 2. The lip-shaped sealing ring 6 can reduce the friction resistance between the valve core 23 and the shell 1 in the relative movement process, and improve the control speed and the control precision in the quick response process.
It will be understood that the sealing valve 2 also comprises an annular gasket 24, the gasket 24 being arranged at the end of the valve element 23 close to the discharge orifice, the edge of the discharge orifice and the armature 33 both abutting against the gasket 24. The annular seal 24 ensures isolation between the intake passage 11 and the exhaust passage 12, and also between the exhaust passage 12 and the exhaust valve 5.
When the pressure in the exhaust channel 12 needs to be increased, the operator controls the electromagnetic coil 32 to be electrified to enable the armature 33 to move towards the valve core 23 and push the valve core 23, the exhaust hole of the sealing valve 2 is communicated with the intake hole, and gas enters the exhaust channel 12 from the intake channel 11 to enable the pressure in the exhaust channel 12 to be increased. When the air pressure sensor 4 detects that the air pressure in the exhaust passage 12 reaches a predetermined value, the current in the electromagnetic coil 32 is adjusted to reduce the pushing force of the armature 33 on the valve element 23, at this time, the valve element 23 is driven by the elastic element 22 to abut against and seal with the edge of the exhaust hole through the annular gasket 24, at this time, the armature 33 also abuts against the annular gasket 24, and the exhaust passage 12 is sealed and pressure-maintained. When the pressure in the exhaust passage 12 needs to be reduced, the current in the electromagnetic coil 32 is continuously adjusted to separate the armature 33 from the sealing pad 24 of the valve core 23, and the gas in the exhaust passage 12 flows to the exhaust valve 5 through the valve core 23 and is exhausted out of the shell 1.
Preferably, as shown in fig. 3, the solenoid valve 3 further comprises a gasket 34. The armature 33 includes a body 332 and a stem 331 connected to the body 332, the gasket 34 is disposed at one end of the body 332 close to the stem 331, and when the armature 33 pushes the valve element 23, the gasket 34 abuts against the second valve body 31. The gasket 34 can limit the stroke of the body 332, thereby reducing the distance that the rod 331 pushes against the valve core 23 and controlling the flow rate of gas from the intake passage 11 into the exhaust passage 12. Meanwhile, the gasket 34 can buffer the body 332 and the second valve body 31, prevent the collision from occurring, and reduce the service life.
It is understood that the air pressure adjusting device has a high requirement for the accuracy of the urging force of the armature 33 in the solenoid valve 3, and during the pressure holding process, the gas in the exhaust passage 12 exerts a force on the armature 33 to urge the armature 33 toward the second valve body 31, and the magnitude of this force is related to the magnitude of the air pressure in the exhaust passage 12, so that it is difficult for an operator to control the current of the electromagnetic coil 32 to accurately control the force with which the armature 33 urges the valve element 23. To solve this problem, a pressure balance passage 3311 is provided through the stem 331, one end of the pressure balance passage 3311 communicates with the exhaust passage 12, and the other end of the pressure balance passage 3311 communicates with the inside of the second valve body 31. The air pressure balancing passage 3311 enables the air pressure inside and outside the armature 33 to be balanced, and the armature 33 is only driven by the driving force from the electromagnetic coil 32, thereby greatly reducing the operation difficulty of an operator.
As shown in fig. 3, the solenoid valve 3 further includes a sliding bearing 35, the sliding bearing 35 is fixedly provided to the second valve body 31, and the armature 33 is inserted into the sliding bearing 35 and slidably abuts against the sliding bearing 35. The sliding bearing 35 can reduce the friction force when the armature 33 slides, and further improve the accuracy when the electromagnetic coil 32 drives the armature 33 to move. It will be appreciated that in order to ensure that the armature 33 is driven by the electromagnetic coil 32 to move axially, two slide bearings 35 are provided, and the rod 331 of the armature 33 and the body 332 are each inserted into one of the slide bearings 35 and slidably abut against the slide bearing 35.
Preferably, as shown in fig. 1, the housing 1 is provided with a first cover plate 13, the first cover plate 13 is detachably connected with the housing 1, and a first sealing ring 14 is arranged between the first cover plate 13 and the housing 1. The arrangement of the first cover plate 13 is convenient for an operator to check and maintain the interior of the shell 1, and the first sealing ring 14 can ensure the sealing property of the interior of the shell 1.
Further, the air pressure adjusting device further comprises a circuit board 7, and the circuit board 7 is electrically connected with the air pressure sensor 4 and the electromagnetic coil 32. The circuit board 7 is provided on the first cover 13 and is detachable together with the first cover 13. The air pressure sensor 4 and the electromagnetic coil 32 are both electrically connected with the circuit board 7, and the complexity of the wiring harness in the air pressure adjusting device is greatly reduced by utilizing the integration of the circuit board 7.
The air pressure adjusting device further comprises a connector 8, the connector 8 is arranged on the first cover plate 13, and the connector 8 is electrically connected with the circuit board 7. The circuit board 7 is connected with an external circuit through a connector 8, so that the plugging and unplugging are facilitated.
Preferably, the housing 1 is provided with a second cover plate 15, and the second valve body 31 is disposed between the housing 1 and the second cover plate 15, and is pressed and fixed by the housing 1 and the second cover plate 15. A second sealing ring 16 is arranged between the second cover plate 15 and the housing 1. The second cover plate 15 can carry out axial positioning to the solenoid valve 3, and operating personnel can maintain and repair the solenoid valve 3 by dismantling the second cover plate 15, greatly reduced this air pressure adjusting device's cost of maintenance.
It will be appreciated that the air pressure regulating device also comprises a waterproof vent valve 9, as shown in figure 4. The waterproof ventilation valve 9 is arranged on the shell 1.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. An air pressure adjustment device, comprising:
a housing (1), the housing (1) being provided with an intake passage (11) and an exhaust passage (12);
the sealing valve (2), the sealing valve (2) includes a first valve body (21), an elastic member (22) and a valve core (23) slidably disposed in the first valve body (21), the first valve body (21) is disposed in the housing (1), two ends of the elastic member (22) respectively abut against the first valve body (21) and the valve core (23), the first valve body (21) is provided with an air inlet hole and an air outlet hole, the air inlet hole is communicated with the air inlet channel (11), the air outlet hole is communicated with the air outlet channel (12), and the valve core (23) is in sealing abutment against the edge of the air outlet hole to block the air inlet channel (11) and the air outlet channel (12);
the electromagnetic valve (3) comprises a second valve body (31), an electromagnetic coil (32) and an armature (33), the second valve body (31) is arranged in the shell (1), the electromagnetic coil (32) is arranged in the second valve body (31), one end of the armature (33) penetrates through the electromagnetic coil (32), the other end of the armature (33) extends to the valve core (23), and the armature (33) pushes against the valve core (23) under the driving of the electromagnetic coil (32);
the air pressure sensor (4), the sense terminal of air pressure sensor (4) stretches into exhaust passage (12).
2. The air pressure adjusting device according to claim 1, further comprising an exhaust valve (5), wherein the exhaust valve (5) is disposed in the housing (1), the valve core (23) is of a hollow structure, one end of the valve core (23) is communicated with the exhaust valve (5), the other end of the valve core (23) extends out of the first valve body (21) and is communicated with the exhaust passage (12), and the armature (33) is sealed when abutting against the valve core (23) so as to block the valve core (23) and the exhaust passage (12).
3. Air pressure regulating device according to claim 2, characterized in that a lip seal (6) is arranged between the valve cartridge (23) and the housing (1).
4. Air pressure regulating device according to claim 2, characterized in that the sealing valve (2) further comprises an annular gasket (24), the gasket (24) being arranged at the end of the valve element (23) close to the exhaust vent, the edge of the exhaust vent and the armature (33) both abutting against the gasket (24).
5. The air pressure regulating device according to claim 1, wherein the solenoid valve (3) further comprises a gasket (34), the armature (33) comprises a body (332) and a rod portion (331) connected to the body (332), the gasket (34) is arranged at one end of the body (332) close to the rod portion (331), and the gasket (34) abuts against the second valve body (31) when the armature (33) pushes against the valve core (23).
6. The air pressure adjusting apparatus according to claim 5, wherein an air pressure balance passage (3311) is penetratingly provided in the rod portion (331), one end of the air pressure balance passage (3311) communicates with the exhaust passage (12), and the other end of the air pressure balance passage (3311) communicates with an inside of the second valve body (31).
7. The air pressure regulating device according to claim 1, characterized in that the solenoid valve (3) further comprises a sliding bearing (35), the sliding bearing (35) is fixedly arranged on the second valve body (31), and the armature (33) is arranged through the sliding bearing (35) and is in sliding abutment with the sliding bearing (35).
8. Air pressure regulating device according to claim 1, characterized in that the housing (1) is provided with a first cover plate (13), the first cover plate (13) being detachably connected to the housing (1), a first sealing ring (14) being provided between the first cover plate (13) and the housing (1).
9. The air pressure regulating device according to claim 8, further comprising a circuit board (7), wherein the circuit board (7) is electrically connected to the air pressure sensor (4) and the electromagnetic coil (32), respectively.
10. The air pressure regulating device according to claim 9, further comprising a connector (8), wherein the connector (8) is provided to the first cover plate (13), and the connector (8) is electrically connected to the circuit board (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361955.8U CN215908374U (en) | 2021-09-28 | 2021-09-28 | Air pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361955.8U CN215908374U (en) | 2021-09-28 | 2021-09-28 | Air pressure adjusting device |
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| Publication Number | Publication Date |
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| CN215908374U true CN215908374U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122361955.8U Active CN215908374U (en) | 2021-09-28 | 2021-09-28 | Air pressure adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382940A (en) * | 2022-02-28 | 2022-04-22 | 浙江金安电气有限公司 | Pneumatic electromagnetic valve |
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2021
- 2021-09-28 CN CN202122361955.8U patent/CN215908374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382940A (en) * | 2022-02-28 | 2022-04-22 | 浙江金安电气有限公司 | Pneumatic electromagnetic valve |
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