CN215663377U

CN215663377U - Integrated rear axle control module with parking quick release valve structure

Info

Publication number: CN215663377U
Application number: CN202120413070.5U
Authority: CN
Inventors: 陈钢强; 赵立城; 胡斐; 姚玉丽; 丁春兰
Original assignee: Zhejiang VIE Science and Technology Co Ltd
Current assignee: Zhejiang VIE Science and Technology Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-01-28
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to the field of ABS electromagnetic valves, and discloses an integrated rear axle control module with a parking quick release valve structure, wherein the integrated quick release valve structure comprises a mounting seat, the mounting seat comprises a base and a second air inlet formed on the base, the base is fixedly connected with a lower valve body, a mounting cavity is formed between the inner side surface of the base and the lower valve body, a switch diaphragm is arranged in the mounting cavity, and a second air cavity is arranged around a first air cavity; the lower valve body is provided with a first air outlet and a second air outlet which are communicated with the parking cavity, the second air cavity is communicated with the first air outlet and the second air outlet, and the first air cavity is communicated with an air outlet arranged on the lower valve body. The valve body has the advantages of high integration degree, low cost and the like.

Description

Integrated rear axle control module with parking quick release valve structure

Technical Field

The utility model relates to the field of ABS electromagnetic valves, in particular to an integrated rear axle control module with a parking quick release valve structure.

Background

The quick release valve is applied to the ABS of the automobile and is used for adjusting the ratio of input pressure to output pressure so as to reduce the braking air pressure of a front shaft when the braking deceleration is lower, prevent locking of a front wheel when braking, and improve the braking performance of the whole automobile. In the ABS system in the prior art, the quick release valve and the two ABS electromagnetic regulating valves are usually connected together through a nylon pipe, and the connection mode has the defects of increased air leakage risk, larger occupied space in the aspects of pipeline arrangement and installation and poorer convenience.

The applicant filed chinese patent 2020211723310, namely "a valve system and an integrated rear axle brake module of a rear axle control module" on 11/10/2017, which connects two air outlet channels to left and right brake chambers of an automobile respectively, and controls the on/off of a pressure reducing diaphragm mechanism and a pressure maintaining diaphragm mechanism by using a pressure reducing solenoid valve and a pressure maintaining solenoid valve, so that the control of a pressure increasing process, a pressure maintaining process and a pressure reducing process can be realized, the requirements of automobile brake control can be met, and the rear axle brake module has the advantages of compact structure, fast response time, light weight, low cost and the like. And the ABS anti-lock function, the ASR ramp auxiliary function, the anti-parking brake and service brake superposition function and the like are realized.

But parking quick release valve and parking chamber gas outlet still let among the prior art adopt solitary spare part to design, still adopt nylon tube to connect and increased the gas leakage risk, so this application provides the integrated form rear axle control module who has parking quick release valve structure according to prior art's defect.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integrated rear axle control module with a parking quick release valve structure, aiming at the defects that the existing rear axle control module can not integrate a parking quick release valve and an air outlet of a parking cavity and the like.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

the integrated rear axle control module with the parking quick release valve structure comprises an upper valve body and a lower valve body, wherein a first air inlet, a control port and an ABS (anti-lock brake system) electromagnetic valve module are arranged on the upper valve body, a relay valve module is also arranged in the upper valve body, the first air inlet and the ABS electromagnetic valve module realize the connection or disconnection of an air passage through the on-off state of the relay valve module, and compressed air at the control port is used for controlling the relay valve module to be opened or closed; the active pressure building structure comprises a valve cavity, one end of the valve cavity is sealed through an end cover, a control valve core assembly is arranged in the valve cavity, a control coil assembly is arranged around the control valve core assembly, one end, close to a control port, of the valve cavity is provided with a control piston, the control piston and the inner wall of the valve cavity are enclosed to form an F cavity, the F cavity is communicated with a first air inlet, one end of the control piston and the end of the control valve core assembly form an air inlet c valve port, the other end of the control piston is provided with a piston sleeve, a G cavity is formed between the control piston and the piston sleeve, the air inlet c valve port can control the connection and disconnection of the F cavity and the G cavity, and the control coil assembly controls the movement of the control valve core assembly so as to realize the opening and closing of the air inlet c valve port; the control piston is connected with the piston sleeve in a sliding manner, an air inlet e valve port is formed between the outside of the piston sleeve and an air channel H channel connected with the control port, the piston sleeve comprises a coating ring, an air inlet d valve port is formed between the coating ring and the outer wall of the piston sleeve, an H cavity is arranged in the valve cavity, the H cavity and the F cavity are separated by a sealing ring arranged on the control piston, the air inlet d valve port controls the communication between the G cavity and the H cavity, and the air inlet e valve port controls the communication and disconnection between the H cavity and the control port; when the inlet d valve port is opened, the inlet e valve port is closed; the H cavity is communicated with the control port by arranging an L channel;

the lower valve body is positioned at the lower side of the upper valve body, a quick release valve structure is mounted on the lower valve body and comprises a mounting seat, the mounting seat comprises a base and a second air inlet formed in the base, the base is fixedly connected with the lower valve body, a mounting cavity is formed between the inner side surface of the base and the lower valve body, a switch diaphragm is arranged in the mounting cavity, the end surface of the lower valve body in the mounting cavity is a mounting surface, a first air cavity and a second air cavity are formed in the mounting surface, and the second air cavity is arranged around the first air cavity; compressed air is input into the second air inlet, the switch diaphragm deforms towards the first air cavity to cut off the communication between the first air cavity and the second air cavity, and the second air inlet is communicated with the second air cavity; the second air inlet is disconnected from air inlet, the air compression time of the second air cavity is on the inner side of the switch diaphragm, the switch diaphragm deforms towards the direction of the second air inlet to cut off the communication between the second air inlet and the second air cavity, and the first air cavity is communicated with the second air cavity; the lower valve body is provided with a first air outlet and a second air outlet which are communicated with the parking cavity, the second air cavity is communicated with the first air outlet and the second air outlet, and the first air cavity is communicated with an air outlet arranged on the lower valve body.

Preferably, the mounting surface is provided with a sunken groove, the switch diaphragm is mounted in the sunken groove, and the first air cavity and the second air cavity are both arranged on the bottom surface of the sunken groove.

Preferably, the first air cavity is internally provided with a first sleeve body, one end of the first sleeve body is abutted against the middle part of the switch diaphragm, the second air inlet is internally provided with an air-permeable supporting sleeve frame, the middle part of the supporting sleeve frame is provided with a supporting block, and the supporting block is abutted against the other side surface of the middle part of the switch diaphragm.

Preferably, the inner side surface of the base is an arc-shaped surface, an annular convex ring is arranged on the arc-shaped surface, and a first air inlet valve port capable of controlling the second air cavity and the second air inlet to be switched on and off is formed between the convex ring and the switch diaphragm.

Preferably, an air-permeable abutting frame is formed on the inner side of the first sleeve body, the end part of the abutting frame abuts against the middle part of the switch diaphragm, and the annular edge of the end part of the first sleeve body, which is close to the second air inlet, and the switch diaphragm form a second air inlet valve port for controlling the on-off of the first air cavity and the second air cavity.

Preferably, the inner side surface of the base is provided with an annular groove, the sunken groove is positioned inside the annular groove, and a sealing gasket is assembled in the annular groove and sealed on the mounting surface around the sunken groove.

Preferably, a cavity is arranged in the upper valve body, the relay valve mechanism is arranged in the caliper body, a horizontal partition plate is arranged in the cavity, a first valve seat and a second valve seat are arranged in the middle of the partition plate, a through channel is arranged in the middle of each of the first valve seat and the second valve seat, the second valve seat is positioned on the inner side of the first valve seat, a valve assembly is arranged on the second valve seat, a limiting seat is arranged on the inner side of the first valve seat, a cavity A is formed by the outer wall of the first valve seat and the inner wall of the valve body, a third valve port is formed by the limiting seat and the upper end of the valve assembly, the third valve port controls the connection and disconnection of the first air inlet and the cavity A, the first relay valve structure comprises a piston, the piston is movably arranged above the first valve seat, a fourth valve port is formed by the lower end of the piston and the middle of the valve assembly, an air channel is arranged in the middle of the valve assembly, the air channel is communicated with the exhaust port, and the fourth valve port controls the connection and disconnection of the cavity A and the exhaust port, compressed air of the control port can act on an upper cavity of the piston through the L channel and push the piston to move downwards to close the fourth valve port, and when the pressure is met, the valve assembly can be continuously pushed to open the third valve port by overcoming the resilience force of the valve assembly; and the cavity A is communicated with the ABS electromagnetic valve module.

Through the technical scheme, the utility model has the following technical effects:

compared with the prior art, the integrated module realizes lightweight design; the structure is compact; the response time is improved; the pipeline arrangement and installation are facilitated; the use of parts is saved, and the cost is greatly saved. And it can realize the function of initiatively building the pressure.

Drawings

Fig. 1 is a front view of the device.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is an enlarged view of fig. 3.

Fig. 5 is a cross-sectional view of fig. 1.

Fig. 6 is a cross-sectional view of fig. 2.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-upper valve body, 2-lower valve body, 3-exhaust port, 4-control port, 5-relay valve module, 6-quick release valve structure, 7-mounting seat, 8-base, 12-second air inlet, 10-mounting cavity, 11-first air inlet, 13-switch diaphragm, 14-mounting surface, 15-first air cavity, 16-second air cavity, 21-first air outlet, 22-second air outlet, 23-third air outlet, 24-fourth air outlet, 25-first sleeve body, 26-support sleeve frame, 27-support block, 28-convex ring, 29-first air inlet valve port, 30-second air inlet valve port, 31-touch frame, 32-seal pad, 33-partition board, 34-first valve seat, 35-second valve seat, 36-valve assembly, 37-limit seat, 38-A cavity, 39-piston, 40-third valve port, 41-fourth valve port, 42-A channel, 43-B channel, 44-C cavity, 45-E cavity, 46-diaphragm assembly, 47-B cavity, 48-D cavity, 49-C channel, 50-D channel, 51-solenoid valve module, 60-valve cavity, 61-end cover, 62-control valve core assembly, 63-control coil assembly, 64-control piston, 65-F cavity, 66-C valve port, 67-G cavity, 68-piston sleeve, 69-air inlet E valve port, 70-cladding ring, 71-air inlet D valve port, 72-H cavity and 74-L channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The present application is an improvement on the applicant's prior application patent CN2020211643104 and the series of patents. The rear axle control module can integrate the parking quick release valve function, integrates the pipeline design, saves the use of a pipeline, saves the space more and has higher response speed. The module comprises an upper valve body 1 and a lower valve body 2, wherein a first air inlet 11, a control port 4 and an ABS (anti-lock brake system) electromagnetic valve module 51 are arranged on the upper valve body 1, a relay valve module 5 is also arranged in the upper valve body 1, the first air inlet 11 and the ABS electromagnetic valve module 51 realize air passage connection or disconnection through the on-off state of the relay valve module 5, and compressed air at the control port 4 is used for controlling the relay valve module 5 to be opened or closed; the active pressure build-up structure comprises a valve cavity 60, one end of the valve cavity 60 is sealed through an end cover 61, a control valve core assembly 62 is arranged in the valve cavity 60, a control coil assembly 63 is arranged around the control valve core assembly 62, one end of the valve cavity 60 close to a control port 4 is provided with a control piston 64, the control piston 64 and the inner wall of the valve cavity 60 are enclosed to form an F cavity 65, the F cavity 65 is communicated with a first air inlet, one end of the control piston 64 and the end part of the control valve core assembly 62 form an air inlet c valve port 66, the other end of the control piston 64 is provided with a piston sleeve 68, a G cavity 67 is formed between the control piston 64 and the piston sleeve 68, the air inlet c valve port 66 can control the communication and disconnection of the F cavity 65 and the G cavity 67, and the control coil assembly 63 controls the movement of the control valve core assembly 62 so as to realize the opening and closing of the air inlet c valve port 66; the control piston 64 is connected with the piston sleeve 68 in a sliding manner, an air inlet e-valve port 69 is formed between the outside of the piston sleeve 68 and an air passage H channel connected with the control port 4, the piston sleeve 68 comprises a coating ring 70, an air inlet d-valve port 71 is formed between the coating ring 70 and the outer wall of the piston sleeve 68, an H cavity 72 is arranged in the valve cavity 60, the H cavity 72 and the F cavity 65 are separated by a sealing ring arranged on the control piston 64, the air inlet d-valve port 71 controls the communication between the G cavity 67 and the H cavity 72, and the air inlet e-valve port 7369 controls the communication and disconnection between the H cavity 72 and the control port 4; when the intake d valve port 71 is opened, the intake e valve port 7369 is closed; the H chamber 72 is communicated with the control port 4 by providing an L passage 74.

The lower valve body 2 is positioned on the lower side of the upper valve body 1, the lower valve body 2 is provided with a quick release valve structure 6, the quick release valve structure 6 comprises a mounting seat 7, the mounting seat 7 comprises a base 8 and a second air inlet 12 formed on the base 8, the base 8 is fixedly connected with the lower valve body 2, a mounting cavity 10 is formed between the inner side surface of the base 8 and the lower valve body 2, a switch diaphragm 13 is arranged in the mounting cavity 10, the end surface of the lower valve body 2 in the mounting cavity 10 is a mounting surface 14, the mounting surface 14 is provided with a first air cavity 15 and a second air cavity 16, and the second air cavity 16 is arranged around the first air cavity 15; compressed air is input into the second air inlet 12, the switch diaphragm 13 deforms towards the direction of the first air cavity 15 to cut off the communication between the first air cavity 15 and the second air cavity 16, and the second air inlet 12 is communicated with the second air cavity 16; the second air inlet 12 is disconnected for air inlet, the air compression time of the second air cavity 16 is on the inner side of the switch diaphragm 13, the switch diaphragm 13 deforms towards the direction of the second air inlet 12 to cut off the communication between the second air inlet 12 and the second air cavity 16, and the first air cavity 15 is communicated with the second air cavity 16; the lower valve body 2 is provided with a first air outlet 21 and a second air outlet 22 which are communicated with the parking cavity, the second air cavity 16 is communicated with the first air outlet 21 and the second air outlet 22, and the first air cavity 15 is communicated with an air outlet 3 arranged on the lower valve body 2. In order to facilitate the pipeline arrangement and processing, the first air outlet 21 and the second air outlet 22 in the embodiment are located on the same axis and located on two sides of the mounting seat 7, and the axes of the first air outlet 21 and the second air outlet 22 are perpendicular to the axes of the first air cavity 15 and the second air cavity 16.

In this embodiment, a sink groove is formed in the mounting surface 14, the switch diaphragm 13 is installed in the sink groove, the first air cavity 15 and the second air cavity 16 are both formed in the bottom surface of the sink groove, and the edge of the switch diaphragm 13 abuts against the edge of the inner side surface of the base 8 and has a gap with the side wall of the sink groove.

In this embodiment, the first sleeve 25 is installed in the first air chamber 15, one end of the first sleeve 25 abuts against the middle of the switch diaphragm 13, and the air-permeable support sleeve frame 26 is installed in the second air inlet 12, that is, the support sleeve frame 26 is provided with a through structure, so that the compressed air that does not affect the second air inlet 12 reaches the switch diaphragm 13. The supporting block 27 is installed in the middle of the supporting sleeve frame 26, and the supporting block 27 abuts against the other side surface in the middle of the switch diaphragm 13. The middle part of the switch membrane 13 is clamped between the support and the price

In this embodiment, the inner side surface of the base 8 is an arc surface, an annular convex ring 28 is disposed on the arc surface, and a first air inlet valve port 29 capable of controlling the on-off of the second air cavity 16 and the second air inlet 12 is formed between the convex ring 28 and the switch diaphragm 13.

An air-permeable interference frame 31 is formed on the inner side of the first sleeve body 25, and specifically, the interference frame 31 is of a net structure. The end of the abutting frame 31 abuts against the middle of the switch diaphragm 13, and the annular edge of the end of the first sleeve 25 close to the second air inlet 12 and the switch diaphragm 13 form a second air inlet valve port 30 for controlling the on-off of the first air cavity 15 and the second air cavity 16.

In this embodiment, the inner side of the base 8 is provided with an annular groove, the sink groove is located inside the annular groove, the annular groove is provided with a sealing gasket 32, and the sealing gasket 32 is sealed on the mounting surface 14 around the sink groove.

The control process of the rear axle control module is as follows:

when the automobile is in a running state, compressed air from the air outlet of the manual valve enters from the second air inlet 12, the switch diaphragm 13 is pushed to move left, the first air inlet valve port 29 is opened, the second air inlet valve port 30 is closed, the second air inlet 12 is communicated with the second air cavity 16, the compressed air enters the air chamber of the spring brake cylinder through the first air outlet 21 and the second air outlet 22 respectively, and parking brake is released.

When the automobile is stopped and needs parking braking, the first air outlet 21 and the second air outlet 22 of the hand brake are pulled up, no air pressure is output any more, and compressed air in the second air inlet 12 is exhausted from the exhaust port 3 of the hand control valve. The switch diaphragm 13 moves to the right after receiving the air pressure of the second chamber of the parking air chamber, so that the first air inlet valve port 29 is closed, the second air inlet valve port 30 is opened, the second chamber is communicated with the first chamber, the compressed air in the parking air chamber is discharged, and the parking brake of the automobile is realized.

Example 2

The present embodiment describes a relay valve structure based on embodiment 1, a cavity is arranged in the upper valve body 1, the relay valve mechanism is installed in the cavity, a horizontal partition 33 is arranged in the cavity, a first valve seat 34 and a second valve seat 35 are arranged in the middle of the partition 33, a through channel is arranged in the middle of each of the first valve seat 34 and the second valve seat 35, the second valve seat 35 is located inside the first valve seat 34, a valve assembly 36 is installed on the second valve seat 35, a limit seat 37 is installed inside the first valve seat 34, an a cavity 38 is formed by the outer wall of the first valve seat 34 and the inner wall of the valve body, a third valve port 40 is formed by the upper end of the limit seat 37 and the upper end of the valve assembly 36, the third valve port 40 controls the first air inlet 11 and the a cavity 38, the first relay valve structure includes an on-off piston 39, the piston 39 is movably installed above the first valve seat 34, a fourth valve port 41 is formed by the lower end of the piston 39 and the middle of the valve assembly 36, the middle part of the valve assembly 36 is provided with an air passage which is communicated with the exhaust port 3, and the fourth valve port 41 controls the connection and disconnection of the cavity A38 and the exhaust port 3; the initial state of the inlet e-valve port 69 is an open state, compressed air of the control port 4 can enter the H cavity 72 through the inlet e-valve port 69, compressed air of the H cavity 72 enters the upper cavity of the piston 39 through the L channel 74, and can act on the upper side of the piston 39 to push the piston 39 to move downwards to close the fourth valve port 41, and when the pressure is met, the valve assembly 36 can be continuously pushed to open the third valve port 40 by overcoming the resilience force of the valve assembly 36; the A chamber 38 communicates with the ABS solenoid valve module 51.

Example 3

The embodiment and the embodiment 2 are described as follows, wherein the control module describes a brake chamber boosting process, a pressure maintaining process and a pressure reducing process:

and (3) boosting: when the automobile is braked during running, the electromagnetic valves are not powered on, air pressure at an air outlet of the air brake valve enters an upper cavity of the piston 39 through the L-shaped channel 74 from the control port 4, the piston 39 is pushed to move downwards to be in contact with the valve assembly 36 to close the fourth valve port 41, the valve assembly 36 is pushed to move downwards to open the third valve port 40, compressed air from the first air inlet 11 enters the third valve port 40 and enters the A cavity 38, the air pressure is divided into 4 paths, 2 paths of air pressure enter the C cavity 44 and the E cavity 45 to press the diaphragm assembly 46 through the A channel 42 and the B channel 43 and an internal channel of the integrated double-two-position three-way electromagnetic valve respectively, and the other 2 paths of air pressure open the diaphragm assembly 46 under the B cavity 47 and the D cavity 48 respectively and exit from the third air outlet 23 and the fourth air outlet 24.

And (3) pressure maintaining process: when the automobile is braked during running, the electromagnetic valves are not powered on, air pressure at an air outlet of the air brake valve enters an upper cavity of the piston 39 through the L-shaped channel 74 from the control port 4, the piston 39 is pushed to move downwards to be in contact with the valve assembly 36 to close the fourth valve port 41, the valve assembly 36 is pushed to move downwards to open the third valve port 40, compressed air from the first air inlet 11 enters the third valve port 40 and enters the A cavity 38, the air pressure is divided into 4 paths, 2 paths of air pressure enter the C cavity 44 and the E cavity 45 to press the diaphragm assembly 46 through the A channel 42 and the B channel 43 and an internal channel of the integrated double-two-position three-way electromagnetic valve respectively, and the other 2 paths of air pressure open the diaphragm assembly 46 under the B cavity 47 and the D cavity 48 respectively and exit from the third air outlet 23 and the fourth air outlet 24. When the pressure maintaining electromagnetic valve is electrified: the air pressure of the passage A42 and the air pressure of the passage B43 enter the cavity B47 and the cavity D48 by opening the internal passages of the integrated double two-position three-way electromagnetic valve, and the diaphragm assembly 46 is pressed against 31 under the action of the air pressure and the conical spring, so that the air inlet is cut off, and the air pressure of the third air outlet 23 and the air pressure of the fourth air outlet 24 are kept unchanged.

And (3) decompression process: when the automobile is braked during running, the electromagnetic valves are not powered on, air pressure at an air outlet of the air brake valve enters an upper cavity of the piston 39 through the L-shaped channel 74 from the control port 4, the piston 39 is pushed to move downwards to be in contact with the valve assembly 36 to close the fourth valve port 41, the valve assembly 36 is pushed to move downwards to open the third valve port 40, compressed air from the first air inlet 11 enters the third valve port 40 and enters the A cavity 38, the air pressure is divided into 4 paths, 2 paths of air pressure enter the C cavity 44 and the E cavity 45 to press the diaphragm assembly 46 through the A channel 42 and the B channel 43 and an internal channel of the integrated double-two-position three-way electromagnetic valve respectively, and the other 2 paths of air pressure open the diaphragm assembly 46 under the B cavity 47 and the D cavity 48 respectively and exit from the third air outlet 23 and the fourth air outlet 24. When the pressure maintaining electromagnetic valve is electrified: the air pressure of the channel A42 and the air pressure of the channel B43 enter the cavity B47 and the cavity D48 by opening the internal channels of the integrated double-two-position three-way electromagnetic valve, and the diaphragm assembly 46 is pressed against 31 under the action of the air pressure and the conical spring, so that air inlet is cut off. The pressure reducing solenoid valve is electrified, the integrated double-two-position three-way solenoid valve channel is cut off, the air pressures of the C cavity 44 and the E cavity 45 are discharged from the exhaust channel through the C channel 49 and the D channel 50, the air pressures of the third air outlet 23 and the fourth air outlet 24 respectively push open the diaphragm assemblies 46 of the C cavity 44 and the E cavity 45, so that the air pressures of the third air outlet 23 and the fourth air outlet 24 are discharged from the exhaust channel, and the brake is released.

And (3) active pressure building process:

the control port 4 has no compressed air, the control coil assembly 63 (which is a normally closed valve) is electrified to work, the compressed air of the first air inlet 11 replaces the compressed air of the control port 4 to work, and the function can still realize the processes of boosting, pressure maintaining and pressure reducing braking by matching with the left and right electromagnetic regulating valve modules.

The method comprises the following specific implementation steps: if the control port 4 has no air pressure, the automobile needs to be braked, the valve can actively build pressure, namely the control coil assembly 63 is electrified to work, the air inlet c valve port 73 is opened, compressed air from the air inlet 11 enters the F cavity 65 through the K channel 80 and enters the G cavity 67 through the air inlet c valve port 73 to push the control piston 64 and the piston sleeve 68 to move downwards, the air inlet e valve port 69 is closed, the air inlet d valve port 71 is opened, the compressed air enters the H cavity 72, then enters the L channel 74, acts on the piston 39 and pushes the piston 39 to move downwards, and then the working principle is the same as the above (namely the pressure boosting process, the pressure maintaining process and the pressure reducing process); when the automobile needs to be braked, the coil assembly 63 is powered off and closed, the inlet c valve port 66 is closed, and compressed air in the G cavity 67 is exhausted from the exhaust port 3; the compressed air in the H-chamber 72 moves the piston 64 upward, opens the intake e-port 69, and is discharged from the air brake valve outlet through the control port 4, thereby releasing the brake. The function can be applied to ASR drive antiskid systems, ESC systems, AEB systems and the like.

Claims

1. Integrated form rear axle control module with parking quick release valve structure, including last valve body (1) and lower valve body (2), its characterized in that: the air control valve is characterized in that a first air inlet (11), a control port (4) and an ABS (anti-lock brake system) electromagnetic valve module (51) are arranged on the upper valve body (1), a relay valve module (5) is further arranged in the upper valve body (1), the first air inlet (11) and the ABS electromagnetic valve module (51) are communicated or disconnected with an air passage through the on-off state of the relay valve module (5), and compressed air of the control port (4) is used for controlling the relay valve module (5) to be opened or closed; the pressure-reducing valve further comprises an active pressure-reducing structure which is horizontally arranged, the active pressure-reducing structure comprises a valve cavity (60), one end of the valve cavity (60) is sealed through an end cover (61), a control valve core assembly (62) is arranged in the valve cavity (60), a control coil assembly (63) is arranged around the control valve core assembly (62), one end, close to a control port (4), of the valve cavity (60) is provided with a control piston (64), the control piston (64) and the inner wall of the valve cavity (60) enclose an F cavity (65), the F cavity (65) is communicated with a first air inlet (11), one end of the control piston (64) and the end of the control valve core assembly (62) form an air inlet c valve port (66), the other end of the control piston (64) is provided with a piston sleeve (68), a valve port G cavity (67) is formed between the control piston (64) and the piston sleeve (68), and the air inlet c valve port (66) can control the communication and disconnection of the F cavity (65) and the G cavity (67), the control coil assembly (63) controls the movement of the control valve core assembly (62) so as to realize the opening and closing of the air inlet c valve port (66); the control piston (64) is in sliding connection with the piston sleeve (68), an air inlet e-valve port (69) is formed between the outside of the piston sleeve (68) and an air passage H channel connected with the control port (4), the piston sleeve (68) comprises a coating ring (70), an air inlet d-valve port (71) is formed between the coating ring (70) and the outer wall of the piston sleeve (68), an H cavity (72) is arranged in the valve cavity (60), the H cavity (72) and the F cavity (65) are separated by a sealing ring arranged on the control piston (64), the air inlet d-valve port (71) controls the communication between the G cavity (67) and the H cavity (72), and the air inlet e-valve port (69) controls the communication and disconnection between the H cavity (72) and the control port (4); when the inlet d valve port (71) is opened, the inlet e valve port (69) is closed; the H cavity (72) is communicated with the control port (4) through an L channel (74);

the lower valve body (2) is located on the lower side of the upper valve body (1), a quick release valve structure (6) is installed on the lower valve body (2), the quick release valve structure (6) comprises an installation seat (7), the installation seat (7) comprises a base (8) and a second air inlet (12) formed in the base (8), the base (8) is fixedly connected with the lower valve body (2), an installation cavity (10) is formed between the inner side surface of the base (8) and the lower valve body (2), a switch membrane (13) is arranged in the installation cavity (10), the end surface of the lower valve body (2) in the installation cavity (10) is an installation surface (14), a first air cavity (15) and a second air cavity (16) are formed in the installation surface (14), and the second air cavity (16) is arranged around the first air cavity (15); compressed air is input into the second air inlet (12), the switch diaphragm (13) deforms towards the direction of the first air cavity (15) to cut off the communication between the first air cavity (15) and the second air cavity (16), and the second air inlet (12) is communicated with the second air cavity (16); the second air inlet (12) is disconnected from air inlet, the air compression time of the second air cavity (16) is on the inner side of the switch diaphragm (13), the switch diaphragm (13) deforms towards the direction of the second air inlet (12) to cut off the communication between the second air inlet (12) and the second air cavity (16), and the first air cavity (15) is communicated with the second air cavity (16); the lower valve body (2) is provided with a first air outlet (21) and a second air outlet (22) which are communicated with the parking cavity, the second air cavity (16) is communicated with the first air outlet (21) and the second air outlet (22), and the first air cavity (15) is communicated with an air outlet (3) arranged on the lower valve body (2).

2. The integrated rear axle control module with parking quick release valve structure of claim 1, wherein: a sinking groove is formed in the mounting surface (14), the switch diaphragm (13) is mounted in the sinking groove, and the first air cavity (15) and the second air cavity (16) are both formed in the bottom surface of the sinking groove.

3. The integrated rear axle control module with parking quick release valve structure of claim 2, wherein: a first sleeve body (25) is installed in the first air cavity (15), one end of the first sleeve body (25) is abutted to the middle of the switch diaphragm (13), an air-permeable supporting sleeve frame (26) is arranged in the second air inlet (12), a supporting block (27) is installed in the middle of the supporting sleeve frame (26), and the supporting block (27) is abutted to the other side face of the middle of the switch diaphragm (13).

4. The integrated rear axle control module with parking quick release valve structure of claim 1, wherein: the inner side surface of the base (8) is an arc-shaped surface, an annular convex ring (28) is arranged on the arc-shaped surface, and a first air inlet valve port (29) which can control the on-off of the second air cavity (16) and the second air inlet (12) is formed between the convex ring (28) and the switch diaphragm (13).

5. The integrated rear axle control module with parking quick release valve structure of claim 3, wherein: an air-permeable abutting frame (31) is formed on the inner side of the first sleeve body (25), the end part of the abutting frame (31) abuts against the middle part of the switch diaphragm (13), and the annular edge of the end part of the first sleeve body (25) close to the second air inlet (12) and the switch diaphragm (13) form a second air inlet valve port (30) for controlling the on-off of the first air cavity (15) and the second air cavity (16).

6. The integrated rear axle control module with parking quick release valve structure as claimed in claim 2, wherein: an annular groove is formed in the inner side face of the base (8), the sinking groove is located on the inner side of the annular groove, a sealing gasket (32) is assembled in the annular groove, and the sealing gasket (32) is sealed on the mounting surface (14) around the sinking groove.

7. The integrated rear axle control module with parking quick release valve structure as claimed in claim 1, wherein: a cavity is arranged in the upper valve body (1), the relay valve mechanism is installed in the clamp body, a horizontal partition plate (33) is arranged in the cavity, a first valve seat (34) and a second valve seat (35) are arranged in the middle of the partition plate (33), penetrating channels are arranged in the middle of the first valve seat (34) and the middle of the second valve seat (35), the second valve seat (35) is located on the inner side of the first valve seat (34), a valve assembly (36) is installed on the second valve seat (35), a limiting seat (37) is installed on the inner side of the first valve seat (34), an A cavity (38) is formed by the outer wall of the first valve seat (34) and the inner wall of the valve body, a third valve port (40) is formed by the upper end of the limiting seat (37) and the upper end of the valve assembly (36), the third valve port (40) controls the connection and disconnection of the first air inlet (11) and the A cavity (38), the first relay valve structure comprises a piston (39), and the piston (39) is movably installed above the first valve seat (34), a fourth valve port (41) is formed between the lower end of the piston (39) and the middle part of the valve assembly (36), a gas path channel is arranged in the middle part of the valve assembly (36), the gas path channel is communicated with the exhaust port (3), the fourth valve port (41) controls the connection and disconnection of the cavity A (38) and the exhaust port (3), compressed air of the control port (4) can act on the upper cavity of the piston (39) through the channel L and pushes the piston (39) to move downwards to close the fourth valve port (41), and when the pressure is met, the valve assembly (36) can be continuously pushed to open the third valve port (40) by overcoming the resilience force of the valve assembly (36); the cavity A (38) is communicated with the ABS electromagnetic valve module (51).