A bridge brake module and vehicle

Abstract

The application provides a bridge brake module and a vehicle. The bridge brake module comprises a housing, a relay piston and a one-way valve. The housing has a receiving cavity; the relay piston is movably arranged in the receiving cavity and is used to open or close part of the receiving cavity; the one-way valve has a valve body and a valve core, the valve body is arranged in the receiving cavity, and the valve core is movably arranged in the valve body; when the relay piston closes part of the receiving cavity, the relay piston is used to push the valve core to move relative to the valve body, so that the valve core is separated from the valve body. The water entering the inside of the bridge brake module through the exhaust port of the bridge brake module can cause the bridge brake module to fail, and the braking system of the vehicle is damaged.

Description

Technical Field

[0001] This application relates to the field of braking technology, and more particularly to an axle braking module and a vehicle. Background Technology

[0002] The axle brake control module is one of the important components in the automotive electronic control system. Its function is to control the braking system of the entire vehicle.

[0003] The axle brake module is located in the vehicle chassis. When the vehicle is driving through water, water will enter the axle brake module through its exhaust port.

[0004] In related technologies, water entering the axle brake module through its exhaust port can cause the axle brake module to fail, resulting in damage to the vehicle's braking system. Utility Model Content

[0005] This application provides an axle brake module and a vehicle to solve the problem that water entering the axle brake module through the exhaust port can cause the axle brake module to fail, resulting in damage to the vehicle's braking system.

[0006] On one hand, this application provides a bridge braking module, including:

[0007] The housing has a receiving cavity;

[0008] A relay piston is movably disposed within the receiving cavity, and the relay piston is used to open or close part of the receiving cavity;

[0009] A one-way valve has a valve body and a valve core. The valve body is disposed in a receiving cavity, and the valve core is movably disposed in the valve body.

[0010] When the relay piston closes part of the receiving cavity, the relay piston is used to push the valve core to move relative to the valve body so that the valve core separates from the valve body.

[0011] In one embodiment, the receiving cavity includes:

[0012] The first chamber, and the first opening and the fourth opening connected to the first chamber, the first opening is used to connect to an external air source, and the fourth opening is used to connect to an external wheel end brake air chamber.

[0013] The second chamber, and the second opening communicating with the second chamber, the second opening being used for connecting an external delivery pipeline;

[0014] The third chamber, and the third opening communicating with the third chamber, the third opening being used to communicate with the outside;

[0015] The first chamber is connected to the second chamber, and the first chamber is connected to the third chamber. The second chamber, the first chamber, and the third chamber are arranged adjacent to each other along the height direction of the shell.

[0016] In one embodiment, a relay piston is movably disposed in the second chamber, and a portion of the relay piston extends toward the side closer to the third chamber. The relay piston is used to open or close the communication between the first chamber and the third chamber.

[0017] In one embodiment, the valve body is disposed in the third chamber;

[0018] When the relay piston closes the connection between the first chamber and the third chamber, the relay piston is used to push the valve core to move relative to the valve body so that the valve core separates from the valve body.

[0019] In one embodiment, a portion of the relay piston is disposed in the first chamber, and the portion of the relay piston disposed in the first chamber has a first channel, which is connected to the first chamber.

[0020] The housing has a second channel, which is connected to the first channel and the second channel, and the second channel is connected to the second chamber.

[0021] In one implementation, it further includes:

[0022] A seal is movably disposed within the second channel, and the seal is used to open or close the connection between the second channel and the first channel.

[0023] In one implementation, it further includes:

[0024] A switch element, mounted on the housing, is used to drive the seal element to open or close the connection between the second channel and the first channel.

[0025] In one embodiment, the switching element includes a support base and a connecting channel, wherein the support base is sealed to the housing and the connecting channel passes through the support base;

[0026] When the seal opens the connection between the second channel and the first channel, the second channel and the first channel are connected through the connecting channel;

[0027] When the seal closes the connection between the second channel and the first channel, the seal abuts against the support and the connecting channel.

[0028] In one embodiment, the end of the support seat facing away from the seal is movably connected to the relay piston;

[0029] The support base has multiple air vents, which are arranged around the outer periphery of the support base, and the multiple air vents are respectively connected to the connecting channel and the first channel.

[0030] In one implementation, it further includes:

[0031] At least one sealing ring is fitted onto the support and connected to at least one of the relay piston and the housing.

[0032] In one implementation, it further includes:

[0033] An elastic element is located in the housing and connected to the support base.

[0034] In one embodiment, a movable member is provided inside the housing, and the relay piston has a second abutment portion;

[0035] When the relay piston closes the connection between the first chamber and the third chamber, the moving part connects with the second abutment part;

[0036] When the follower piston opens the connection between the first chamber and the third chamber, the moving part and the second abutment part separate along the height direction of the housing.

[0037] In one embodiment, the relay piston has a third abutment portion and the valve core has a fourth abutment portion; the third abutment portion abuts against the fourth abutment portion so that the third chamber is connected to the outside.

[0038] Along the height direction of the shell, the second abutment is located above the third abutment.

[0039] In one embodiment, the movable member is located within the first chamber and is used to open or close the connection between the first chamber and the first opening. The bridge braking module further includes:

[0040] A return spring, one end of which is connected to a one-way valve, and the other end of which is connected to a moving part;

[0041] When the movable part is connected to the second abutment part, the movable part is used to move toward the side closer to the return spring under the drive of the relay piston, so as to open the communication between the first chamber and the first opening;

[0042] When the movable part separates from the second abutment portion, the movable part is reset under the drive of the return spring to close the communication between the first chamber and the first opening.

[0043] In one implementation, it further includes:

[0044] The reset element is located inside the receiving cavity and is connected to the valve core drive. The reset element is used to drive the valve core to abut against the valve body.

[0045] In one embodiment, the reset element includes:

[0046] The spring seat is located within the receiving cavity;

[0047] The return spring has one end connected to the spring seat and the other end connected to the valve core. The return spring is used to drive the valve core to abut against the valve body.

[0048] On the other hand, this application provides a vehicle, including a vehicle body and an axle braking module, the axle braking module being disposed on the vehicle body.

[0049] In the axle braking module provided in this application, the housing protects the relay piston. Driven by an external force, the relay piston moves relative to the receiving cavity to close part of the receiving cavity, reducing the possibility of water entering the closed portion. This protects the closed portion of the receiving cavity, preventing water from entering the other portion of the receiving cavity when the vehicle is wading through water, thus allowing the vehicle to continue driving normally. After the vehicle passes through a flooded section, the water in the unclosed portion of the receiving cavity moves downwards under gravity and is discharged to the outside through a one-way valve, thus escaping the unclosed portion. In this case, the valve core separates from the valve body, improving the drainage efficiency of the unclosed portion of the receiving cavity and providing safety protection for the axle braking module.

[0050] Therefore, the axle brake module provided in this application can solve the problem that water entering the axle brake module through the exhaust port can cause the axle brake module to fail and damage the vehicle's braking system. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 A schematic diagram of the main structure of the bridge braking module provided in the embodiments of this application.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100 - Housing; 101 - First chamber; 102 - First opening; 103 - Second chamber; 104 - Second opening; 105 - Third chamber; 106 - Third opening; 107 - Second channel; 108 - Moving part;

[0055] 200 - Relay piston; 201 - First channel; 202 - Second abutment part; 203 - Third abutment part;

[0056] 300 - Check valve; 301 - Valve body; 302 - Valve core; 3021 - Fourth contact part;

[0057] 400 - Seals;

[0058] 500 - Switch; 501 - Support base; 5011 - Air vent; 502 - Connection channel;

[0059] 600 - Sealing ring;

[0060] 700 - Elastic component;

[0061] 800 - Reset component; 801 - Spring seat; 802 - Return spring. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0063] In related technologies, the axle braking module has an exhaust port, which is used to discharge the control gas in the axle braking module to the outside. When the vehicle is driving through water, water from the outside environment will enter the interior of the axle braking module through the exhaust port, which will cause the axle braking module to fail.

[0064] In the axle braking module provided in the embodiments of this application, the housing is used to protect the relay piston. Driven by an external force, the relay piston moves relative to the receiving cavity to close part of the receiving cavity, reducing the possibility of water entering the closed portion. This protects the closed portion of the receiving cavity, preventing water from entering the other portion of the receiving cavity when the vehicle is driving through water, thus allowing the vehicle to drive normally. After the vehicle passes through a flooded section, the water in the unclosed portion of the receiving cavity moves downwards under gravity and is discharged to the outside through a one-way valve, thus escaping the unclosed portion. In this case, the valve core separates from the valve body, improving the drainage efficiency of the unclosed portion of the receiving cavity and providing safety protection for the axle braking module.

[0065] like Figure 1As shown, the bridge braking module provided in the embodiments of this application includes: a housing 100, a relay piston 200, and a one-way valve 300. The housing 100 has a receiving cavity; the relay piston 200 is movably disposed within the receiving cavity and is used to open or close a portion of the receiving cavity; the one-way valve 300 has a valve body 301 and a valve core 302, the valve body 301 is disposed within the receiving cavity, and the valve core 302 is movably disposed within the valve body 301; when the relay piston 200 closes a portion of the receiving cavity, the relay piston 200 is used to push the valve core 302 to move relative to the valve body 301, so that the valve core 302 separates from the valve body 301.

[0066] It should be noted that the receiving cavity includes: a first chamber 101 and a first opening 102 and a fourth opening communicating with the first chamber 101, a second chamber 103 and a second opening 104 communicating with the second chamber 103, and a third chamber 105 and a third opening 106 communicating with the third chamber 105; the first chamber 101 communicates with the second chamber 103, and the first chamber 101 communicates with the third chamber 105. Along the height direction of the shell 100, the second chamber 103, the first chamber 101, and the third chamber 105 are arranged adjacent to each other.

[0067] Understandably, the first opening 102 is used to connect to an external air source, allowing gas from the air source to enter the first chamber 101 after passing through the first opening 102. The fourth opening is used to connect to an external wheel-end brake chamber, allowing gas from the first chamber 101 to be transported to the wheel-end brake chamber after passing through the fourth opening. The second opening 104 is used to connect to an external delivery pipeline, allowing gas from the delivery pipeline to enter the second chamber 103 after passing through the second opening 104. The third opening 106 is used to connect to the outside, allowing gas from the third chamber 105 to be guided to the outside through the third opening 106, so that gas entering the third chamber 105 from the first chamber 101 can be discharged to the outside through the third opening 106, thereby reducing the volume of residual gas in the first chamber 101 and providing safety protection for the axle brake module.

[0068] It should be noted that the relay piston 200 is movably disposed in the second chamber 103, and a portion of the relay piston 200 extends toward the side closer to the third chamber 105. The relay piston 200 is used to open or close the communication between the first chamber 101 and the third chamber 105.

[0069] It is understandable that the relay piston 200 opens or closes the connection between the first chamber 101 and the third chamber 105, which can reduce the difficulty of opening or closing the connection between the first chamber 101 and the third chamber 105.

[0070] It should be noted that the valve body 301 is located in the third chamber 105; when the relay piston 200 closes the connection between the first chamber 101 and the third chamber 105, the relay piston 200 is used to push the valve core 302 to move relative to the valve body 301 so that the valve core 302 is separated from the valve body 301.

[0071] Understandably, separating the valve core 302 from the valve body 301 can improve the drainage efficiency of the third chamber 105, thereby providing safety protection for the bridge braking module.

[0072] It should be noted that the one-way valve 300 has an inlet and an outlet. Along the height direction of the housing 100, the inlet is located above the outlet, and the outlet is connected to the third opening 106.

[0073] Understandably, the one-way valve 300 is used to discharge the gas in the first chamber 101 to the outside to meet the normal use of the bridge braking module.

[0074] Understandably, the valve core 302 is connected to the valve body 301 to prevent water from the external environment from entering the upper part of the one-way valve 300 through the third opening 106, so as to provide safety protection for the bridge braking module.

[0075] Understandably, the gas in the delivery pipeline can enter the second chamber 103 after passing through the second opening 104. The gas in the second chamber 103 will push the relay piston 200 to move towards the side closer to the third chamber 105, thereby closing the connection between the first chamber 101 and the third chamber 105. This isolates the first chamber 101 from the outside world, reducing the occurrence of water entering the first chamber 101 and thus providing safety protection for the first chamber 101. This ensures that when the vehicle is driving through water, water from the outside environment cannot enter the first chamber 101 through the third chamber 105, allowing the vehicle to drive normally.

[0076] It should be noted that when the first chamber 101 and the second chamber 103 are closed, the gas in the delivery pipeline can enter the second chamber 103 through the second opening 104. The relay piston 200 can move towards the side closer to the third chamber 105 under the push of the gas in the second chamber 103 to close the connection between the first chamber 101 and the third chamber 105. When the relay piston 200 closes the connection between the first chamber 101 and the third chamber 105, part of the relay piston 200 pushes the valve core 302 to move relative to the valve body 301, so that the valve core 302 is separated from the valve body 301, thereby allowing the third chamber 105 to communicate with the outside.

[0077] It should be noted that when the first chamber 101 and the second chamber 103 are open and connected, the gas in the gas source enters the first chamber 101 after passing through the first opening 102. The relay piston 200 can move away from the third chamber 105 under the push of the gas in the first chamber 101, so that the relay piston 200 is separated from the valve core 302, thereby closing the connection between the third chamber 105 and the outside.

[0078] The relay piston 200 provided in the embodiments of this application is partially disposed in the first chamber 101. The portion of the relay piston 200 disposed in the first chamber 101 has a first channel 201, which is connected to the first chamber 101. The housing 100 has a second channel 107, which is connected to the first channel 201 and the second channel 107, and the second channel 107 is connected to the second chamber 103.

[0079] It is understandable that the first channel 201 is connected to the second channel 107, thereby improving the communication efficiency between the first chamber 101 and the second chamber 103. The portion of the relay piston 200 located in the first chamber 101 has the first channel 201, which can reduce the installation difficulty of the first channel 201, thereby reducing the communication difficulty between the first chamber 101 and the second chamber 103.

[0080] It should be noted that the gas in the gas source enters the first chamber 101 after passing through the first opening 102, and reaches the second chamber 103 after passing through the first channel 201 and the second channel 107. Alternatively, the gas in the delivery pipeline can enter the second chamber 103 after passing through the second opening 104, and reach the first chamber 101 after passing through the second channel 107 and the first channel 201.

[0081] The bridge braking module provided in the embodiments of this application further includes: a seal 400, which is movably disposed in the second channel 107 and is used to open or close the connection between the second channel 107 and the first channel 201.

[0082] It is understandable that when the seal 400 opens the connection between the first channel 201 and the second channel 107, the first chamber 101 and the second chamber 103 are connected through the first channel 201 and the second channel 107; when the seal 400 closes the connection between the first channel 201 and the second channel 107, the connection between the first chamber 101 and the second chamber 103 is closed; by controlling the seal 400 to open or close the connection between the first channel 201 and the second channel 107, the connection between the first chamber 101 and the second chamber 103 can be opened or closed, which has the advantage of simple control.

[0083] It should be noted that the seal 400 has several different configuration methods, and the configuration methods of the seal 400 will be illustrated with examples below.

[0084] In one feasible implementation, the seal 400 is a cylindrical sealing plug, which is movably disposed within the second channel 107.

[0085] Understandably, the cylindrical sealing plug can improve the stability of the connection or disconnection between the second channel 107 and the first channel 201, thereby improving the airtightness of the first channel 201 and the second channel 107 when the connection is closed, so as to provide safety protection for the bridge braking module.

[0086] In another feasible embodiment, the seal 400 is a sheet-like sealing plate, which is movably disposed within the second channel 107.

[0087] Understandably, the installation of the sheet-like sealing plate can improve the sensitivity of opening or closing the first channel 201 and the second channel 107, thereby improving the safety performance of the bridge braking module.

[0088] It is understandable that there are no restrictions on the specific setting of the seal 400, and it can be selected according to actual usage requirements.

[0089] The bridge braking module provided in the embodiments of this application also includes a switch 500, which is disposed on the housing 100. The switch 500 is used to drive the seal 400 to open or close the connection between the second channel 107 and the first channel 201.

[0090] Understandably, the switch 500 reduces the difficulty of opening or closing the connection between the first channel 201 and the second channel 107 by the seal 400, thereby improving the safety performance of the bridge braking module.

[0091] It should be noted that the switch 500 has several different configuration methods, and the configuration methods of the switch 500 will be illustrated with examples below.

[0092] In one feasible implementation, the switch 500 is a first air pump, which is mounted on the housing 100, and the output end of the first air pump is connected to the seal 400 in a driving connection.

[0093] It should be noted that the first air pump is used to drive the seal 400 to move toward the side closer to the first channel 201 to close the connection between the first channel 201 and the second channel 107; the first air pump is also used to drive the seal 400 to move toward the side away from the first channel 201 to open the connection between the first channel 201 and the second channel 107.

[0094] Understandably, the installation of the first air pump can reduce the difficulty of opening or closing the connection between the first channel 201 and the second channel 107 of the seal 400, and can improve the operational stability of the seal 400.

[0095] In another feasible embodiment, the switch 500 includes a support base 501 and a connecting channel 502. The support base 501 is sealed to the housing 100, and the connecting channel 502 passes through the support base 501. When the seal 400 opens the connection between the second channel 107 and the first channel 201, the second channel 107 and the first channel 201 are connected through the connecting channel 502. When the seal 400 closes the connection between the second channel 107 and the first channel 201, the seal 400 abuts against the support base 501 and the connecting channel 502.

[0096] It is understandable that the above-described embodiments can reduce the difficulty of opening or closing the connection between the first channel 201 and the second channel 107 of the seal 400, and can improve the operational stability of the seal 400.

[0097] It should be noted that the gas-driven seal 400 in the first channel 201 moves toward the side away from the first channel 201 and moves toward the end away from the support 501, so that the seal 400 is separated from the support 501, thereby allowing the first chamber 101 and the second chamber 103 to communicate through the first channel 201 and the second channel 107.

[0098] It should be noted that the gas-driven seal 400 in the second channel 107 moves toward the side closer to the first channel 201. The seal 400 moves toward the end closer to the support 501 to abut against the support 501 and the connecting channel 502, thereby closing the connection between the first channel 201 and the second channel 107, so that the first chamber 101 and the second chamber 103 are closed.

[0099] It is understandable that there are no restrictions on the specific configuration of the switch 500, and it can be selected according to the actual usage requirements, as long as the switch 500 can drive the seal 400 to open or close the connection between the second channel 107 and the first channel 201.

[0100] It should be noted that the end of the support base 501 away from the seal 400 is movably connected to the relay piston 200; the support base 501 has multiple air guide ports 5011, which are arranged around the outer periphery of the support base 501, and the multiple air guide ports 5011 are respectively connected to the connecting channel 502 and the first channel 201.

[0101] Understandably, the end of the support 501 that is away from the seal 400 is movably connected to the relay piston 200, which can improve the connection stability between the support 501, the relay piston 200 and the housing 100; the setting of the air guide 5011 can increase the communication area between the first channel 201 and the second channel 107, thereby increasing the movement speed of the gas in the second chamber 103 to the first chamber 101.

[0102] It should be noted that the bridge braking module provided in the embodiments of this application further includes at least one sealing ring 600, which is sleeved on the support base 501.

[0103] Understandably, the sealing ring 600 is sleeved on the outer peripheral wall of the support 501 so that the support 501 is sealed to at least one of the relay piston 200 or the housing 100, thereby improving the connection strength between the support 501 and the relay piston 200 or the housing 100, so that the connection between the support 501 and the relay piston 200 or the housing 100 is more stable.

[0104] It should be noted that the sealing ring 600 has a variety of different installation positions, and the installation positions of the sealing ring 600 will be illustrated with examples below.

[0105] In one feasible implementation, the inner ring of the sealing ring 600 is fitted onto the support 501, and the outer ring of the sealing ring 600 is sealed to the relay piston 200.

[0106] Understandably, the sealing ring 600 is used to seal the connection between the support 501 and the relay piston 200, thereby increasing the connection strength between the support 501 and the relay piston 200 or the housing 100, so that the connection between the support 501 and the relay piston 200 or the housing 100 is more stable.

[0107] In another feasible embodiment, the inner ring of the sealing ring 600 is fitted onto the support base 501, and the outer ring of the sealing ring 600 is sealed to the housing 100.

[0108] Understandably, the sealing ring 600 is used to seal the connection between the support 501 and the housing 100, thereby increasing the connection strength between the support 501 and the relay piston 200 or the housing 100, so that the connection between the support 501 and the relay piston 200 or the housing 100 is more stable.

[0109] In addition, in other feasible embodiments, multiple sealing rings 600 are provided. The inner ring of a portion of the multiple sealing rings 600 is fitted onto the support base 501, and the outer ring of the sealing ring 600 is sealed to the relay piston 200. The inner ring of another portion of the multiple sealing rings 600 is fitted onto the support base 501, and the outer ring of the sealing ring 600 is sealed to the housing 100.

[0110] It is understood that the above-described embodiments can improve the connection strength between the support base 501 and the relay piston 200 or the housing 100, so that the connection between the support base 501 and the relay piston 200 or the housing 100 is more stable.

[0111] The bridge braking module provided in the embodiments of this application also includes an elastic element 700, which is disposed in the housing 100 and connected to the support base 501.

[0112] Understandably, the elastic element 700 is used to elastically support the support base 501 and the housing 100 to reduce the occurrence of vibration between the support base 501 and the housing 100, and to reduce the collision force between the support base 501 and the housing 100, so as to provide safety protection for the bridge braking module.

[0113] It should be noted that the elastic element 700 has several different settings, and the following examples illustrate the settings of the elastic element 700.

[0114] In one feasible implementation, the elastic element 700 is a retaining ring, with one end face of the retaining ring connected to the support base 501 and the other end face of the retaining ring connected to the housing 100.

[0115] Understandably, the snap ring is used to elastically support the housing 100 and the support base 501, and can buffer the collision force between the support base 501 and the housing 100 to provide safety protection for the bridge braking module.

[0116] In another feasible embodiment, the elastic element 700 is a buffer pad, one side surface of which is connected to the support base 501, and the other side surface of which is connected to the housing 100.

[0117] Understandably, the buffer pad is used to connect the support 501 and the housing 100 to reduce the vibration of the support 501 relative to the housing 100, thereby providing safety protection for the bridge braking module.

[0118] Understandably, there are no restrictions on the specific settings of the elastic element 700; it can be selected according to actual usage requirements.

[0119] It should be noted that in the bridge braking module provided in the embodiments of this application, a movable member 108 is provided inside the housing 100, and the relay piston 200 has a second abutment portion 202; when the relay piston 200 closes the communication between the first chamber 101 and the third chamber 105, the movable member 108 is connected to the second abutment portion 202; when the relay piston 200 opens the communication between the first chamber 101 and the third chamber 105, the movable member 108 and the second abutment portion 202 are spaced apart along the height direction of the housing 100.

[0120] It is understandable that the connection between the movable part 108 and the second abutment part 202 can close the communication between the first chamber 101 and the third chamber 105, thereby reducing the occurrence of water in the third chamber 105 entering the first chamber 101 and thus providing safety protection for the first chamber 101; the separation of the movable part 108 and the second abutment part 202 can allow the gas in the first chamber 101 to be guided to the outside after passing through the third chamber 105.

[0121] It should be noted that the relay piston 200 has a third abutment portion 203, and the valve core 302 has a fourth abutment portion 3021. The third abutment portion 203 abuts against the fourth abutment portion 3021 so that the third chamber 105 is connected to the outside. Along the height direction of the housing 100, the second abutment portion 202 is located above the third abutment portion 203.

[0122] Understandably, the third abutting part 203 abuts against the fourth abutting part 3021 to connect the third chamber 105 with the outside, thereby increasing the communication area between the third chamber 105 and the outside, and improving the water extraction efficiency within the third chamber 105. Furthermore, the connection between the third abutting part 203 and the fourth abutting part 3021 allows the gas within the third chamber 105 to be introduced into the external environment through the gap between the valve core 302 and the valve body 301. This reduces the frequent compression of the valve core 302 by the gas within the third chamber 105, preventing collisions between the valve body 301 and the valve core 302, thus reducing noise in the bridge braking module and extending the service life of the one-way valve 300.

[0123] It should be noted that if the gas at the upper part of the valve body 301 compresses the valve core 302, causing the valve core 302 to separate from the valve body 301, the valve body 301 and the valve core 302 will frequently open or close, resulting in a reduction in the service life of the one-way valve 300. In addition, the valve body 301 and the valve core 302 may generate noise during the opening or closing process, causing noise in the bridge braking module.

[0124] It should be noted that the upper part of the valve body 301 refers to the position above the connection between the valve core 302 and the valve body 301 along the height direction of the housing 100.

[0125] It should be noted that the movable part 108 is located inside the first chamber 101. The movable part 108 is used to open or close the connection between the first chamber 101 and the first opening 102. The bridge braking module also includes a return spring, one end of which is connected to the one-way valve 300, and the other end of which is connected to the movable part 108. When the movable part 108 is connected to the second abutment 202, the movable part 108 is used to move towards the side closer to the return spring under the drive of the relay piston 200 to open the connection between the first chamber 101 and the first opening 102. When the movable part 108 is separated from the second abutment 202, the movable part 108 is used to reset under the drive of the return spring to close the connection between the first chamber 101 and the first opening 102.

[0126] It is understood that, through the above implementation method, the moving part 108 and the return spring can cooperate to open or close the connection between the first chamber 101 and the first opening 102, which has the advantages of simple control. Moreover, the above method has the advantages of strong stability and rapid control, which can improve the safety performance of the bridge braking module.

[0127] The bridge braking module provided in the embodiments of this application further includes: a reset member 800, which is disposed in the receiving cavity and is connected to the valve core 302 in a transmission manner. The reset member 800 is used to drive the valve core 302 to abut against the valve body 301.

[0128] It is understandable that the reset component 800 drives the valve core 302 to abut against the valve body 301, so that water from the external environment cannot pass through the valve core 302 and reach the valve body 301, i.e., the upper part of the valve body 301, thereby providing safety protection for the bridge braking module.

[0129] It should be noted that the reset component 800 has several different settings, and the following examples illustrate the settings of the reset component 800.

[0130] In one feasible implementation, the reset member 800 is a second air pump, one end of which is connected to the receiving cavity, and the other end of which is connected to the valve core 302.

[0131] Understandably, the second air pump is used to drive the valve core 302 to move toward the side closer to the valve body 301, so as to abut against the valve body 301 and thereby close the connection between the upper part of the valve body 301 and the external environment.

[0132] In another feasible embodiment, the reset member 800 includes: a spring seat 801 and a return spring 802. The spring seat 801 is disposed in the receiving cavity; one end of the return spring 802 is connected to the spring seat 801, and the other end of the return spring 802 is connected to the valve core 302. The return spring 802 is used to drive the valve core 302 to abut against the valve body 301.

[0133] Understandably, the return spring 802 is used to shock absorb the connection between the spring seat 801 and the valve core 302 to provide safety protection for the valve core 302. The return spring 802 can also drive the valve core 302 to move towards the side closer to the valve body 301 under its own elastic force, so as to abut against the valve body 301 and close the upper part of the valve body 301 from the external environment.

[0134] It is understandable that there are no restrictions on the specific setting of the reset component 800. It can be selected according to the actual usage requirements, as long as the reset component 800 can drive the valve core 302 to move toward the side closer to the valve body 301 so as to abut against the valve body 301.

[0135] An embodiment of this application provides a vehicle, including a vehicle body and an axle braking module provided in the above embodiment, wherein the axle braking module is disposed on the vehicle body.

[0136] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0137] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A bridge braking module, characterized in that, include: The housing (100) has a receiving cavity; A relay piston (200) is movably disposed within the receiving cavity, the relay piston (200) being used to open or close part of the receiving cavity; A one-way valve (300) has a valve body (301) and a valve core (302), the valve body (301) being disposed in the receiving cavity, and the valve core (302) being movably disposed in the valve body (301); When the relay piston (200) closes part of the receiving cavity, the relay piston (200) is used to push the valve core (302) to move relative to the valve body (301) so that the valve core (302) is separated from the valve body (301).

2. The bridge braking module according to claim 1, characterized in that, The receiving cavity includes: A first chamber (101), and a first opening (102) and a fourth opening communicating with the first chamber (101), wherein the first opening (102) is used to connect an external air source, and the fourth opening is used to connect an external wheel end brake air chamber; The second chamber (103) and the second opening (104) communicating with the second chamber (103) are used for connecting to an external delivery pipeline; A third chamber (105) and a third opening (106) communicating with the third chamber (105), the third opening (106) being used to communicate with the outside; The first chamber (101) is connected to the second chamber (103), and the first chamber (101) is connected to the third chamber (105). Along the height direction of the shell (100), the second chamber (103), the first chamber (101) and the third chamber (105) are arranged adjacent to each other.

3. The bridge braking module according to claim 2, characterized in that, The relay piston (200) is movably disposed in the second chamber (103), and a portion of the relay piston (200) extends toward the side closer to the third chamber (105). The relay piston (200) is used to open or close the communication between the first chamber (101) and the third chamber (105).

4. A bridge braking module according to claim 3, characterized in that, The valve body (301) is disposed in the third chamber (105); When the relay piston (200) closes the communication between the first chamber (101) and the third chamber (105), the relay piston (200) is used to push the valve core (302) to move relative to the valve body (301) so that the valve core (302) is separated from the valve body (301).

5. A bridge braking module according to claim 2, characterized in that, A portion of the relay piston (200) is disposed within the first chamber (101), and the portion of the relay piston (200) disposed within the first chamber (101) has a first channel (201), which is connected to the first chamber (101). The housing (100) has a second channel (107), the first channel (201) is connected to the second channel (107), and the second channel (107) is connected to the second chamber (103).

6. A bridge braking module according to claim 5, characterized in that, Also includes: A seal (400) is movably disposed within the second channel (107), the seal (400) being used to open or close the communication between the second channel (107) and the first channel (201).

7. A bridge braking module according to claim 6, characterized in that, Also includes: A switch (500) is disposed on the housing (100), and the switch (500) is used to drive the seal (400) to open or close the connection between the second channel (107) and the first channel (201).

8. A bridge braking module according to claim 7, characterized in that, The switch (500) includes a support base (501) and a connecting channel (502). The support base (501) is sealed to the housing (100), and the connecting channel (502) passes through the support base (501). When the seal (400) opens the connection between the second channel (107) and the first channel (201), the second channel (107) and the first channel (201) are connected through the connecting channel (502); When the seal (400) closes the connection between the second channel (107) and the first channel (201), the seal (400) abuts against the support (501) and the connecting channel (502).

9. A bridge braking module according to claim 8, characterized in that, The end of the support base (501) facing away from the seal (400) is movably connected to the relay piston (200); The support base (501) has multiple air vents (5011), which are arranged around the outer periphery of the support base (501), and the multiple air vents (5011) are respectively connected to the connecting channel (502) and the first channel (201).

10. A bridge braking module according to claim 8, characterized in that, Also includes: At least one sealing ring (600) is fitted onto the support (501) and connected to at least one of the relay piston (200) and the housing (100).

11. A bridge braking module according to claim 8, characterized in that, Also includes: An elastic element (700) is disposed in the housing (100) and connected to the support base (501).

12. A bridge braking module according to claim 3, characterized in that, A movable part (108) is provided inside the housing (100), and the relay piston (200) has a second abutment part (202). When the relay piston (200) closes the communication between the first chamber (101) and the third chamber (105), the moving part (108) is connected to the second abutment part (202); When the relay piston (200) opens the communication between the first chamber (101) and the third chamber (105), the moving part (108) and the second abutment part (202) separate along the height direction of the housing (100).

13. A bridge braking module according to claim 12, characterized in that, The relay piston (200) has a third abutment portion (203), and the valve core (302) has a fourth abutment portion (3021); the third abutment portion (203) abuts against the fourth abutment portion (3021) so that the third chamber (105) is connected to the outside. Along the height direction of the housing (100), the second abutment (202) is located above the third abutment (203).

14. A bridge braking module according to claim 12, characterized in that, The movable component (108) is located within the first chamber (101), and the movable component (108) is used to open or close the communication between the first chamber (101) and the first opening (102). The bridge braking module further includes: A reset spring, one end of which is connected to the one-way valve (300), and the other end of which is connected to the moving part (108); When the movable member (108) is connected to the second abutment (202), the movable member (108) is used to move toward the side closer to the reset spring under the drive of the relay piston (200) to open the communication between the first chamber (101) and the first opening (102); When the movable member (108) separates from the second abutment (202), the movable member (108) is reset under the drive of the reset spring to close the communication between the first chamber (101) and the first opening (102).

15. A bridge braking module according to any one of claims 1-14, characterized in that, Also includes: A reset member (800) is disposed in the receiving cavity and is connected to the valve core (302) in a transmission manner. The reset member (800) is used to drive the valve core (302) to abut against the valve body (301).

16. A bridge braking module according to claim 15, characterized in that, The reset component (800) includes: Spring seat (801) is disposed within the receiving cavity; A return spring (802) is provided, one end of which is connected to the spring seat (801) and the other end of which is connected to the valve core (302). The return spring (802) is used to drive the valve core (302) to abut against the valve body (301).

17. A vehicle, characterized in that, The vehicle includes a vehicle body and an axle braking module according to any one of claims 1-16, wherein the axle braking module is disposed on the vehicle body.

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