WO2025129532A1 - 集成保压阀、空气悬架系统及车辆 - Google Patents

集成保压阀、空气悬架系统及车辆 Download PDF

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Publication number
WO2025129532A1
WO2025129532A1 PCT/CN2023/140444 CN2023140444W WO2025129532A1 WO 2025129532 A1 WO2025129532 A1 WO 2025129532A1 CN 2023140444 W CN2023140444 W CN 2023140444W WO 2025129532 A1 WO2025129532 A1 WO 2025129532A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
air
integrated pressure
maintaining
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/140444
Other languages
English (en)
French (fr)
Inventor
刘佳奇
鹿青山
魏人杰
刘许良
续霄龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Langfang Shuchang Auto Parts Co Ltd
Original Assignee
Langfang Shuchang Auto Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Langfang Shuchang Auto Parts Co Ltd filed Critical Langfang Shuchang Auto Parts Co Ltd
Priority to PCT/CN2023/140444 priority Critical patent/WO2025129532A1/zh
Priority to EP23915178.0A priority patent/EP4600525A1/en
Publication of WO2025129532A1 publication Critical patent/WO2025129532A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings
    • F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
    • F16L37/42—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings with a lift valve being opened automatically when the coupling is applied the valve having an axial bore communicating with lateral apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0523—Regulating distributors or valves for pneumatic springs
    • B60G17/0528—Pressure regulating or air filling valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/203—Distributor valve units comprising several elements, e.g. valves, pump or accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/204—Pressure regulating valves for air-springs
    • B60G2500/2042—Air filling valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
    • F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
    • F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
    • F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped

Definitions

  • the present application relates to the field of vehicle technology, and in particular to an integrated pressure-maintaining valve, an air suspension system and a vehicle.
  • Air springs use the compressibility of gas to achieve consistency of the natural frequency of the vehicle body. By filling or discharging to change the internal pressure of the air spring, the suspension height can be adjusted to improve the ride comfort of the vehicle.
  • the air suspension system includes a vehicle frame, an air pump, an air tank, an air duct and an air spring.
  • the shape of the air spring is first adjusted, and then the air spring is installed on the vehicle frame, and then the air pump and the air tank are installed on the vehicle frame, and then the air duct is connected between the air tank and the air spring.
  • the embodiments of the present application provide an integrated pressure-maintaining valve, an air suspension system and a vehicle to solve the problem of being time-consuming and labor-intensive during the installation of the air suspension system.
  • an embodiment of the present application provides an integrated pressure-maintaining valve, which is applied to an air suspension system of a vehicle, wherein the air suspension system includes an air spring and an air duct, and the integrated pressure-maintaining valve includes a valve housing, a pressure-maintaining component, and a fixing component;
  • the valve housing has a first end and a second end which are arranged opposite to each other in the axial direction of the integrated pressure-maintaining valve, and the valve housing is detachably connected to the air port of the air spring;
  • the pressure-maintaining assembly includes a valve core, a reset member, and a first sealing member.
  • the valve core is located in the valve housing.
  • the first sealing member is fixed on the valve core.
  • the reset member is connected to the valve housing and Between the valve cores, the reset member is configured to apply a force to the valve core when the integrated pressure-maintaining valve is in a pressure-maintaining state, so that the first sealing member seals the first end;
  • the fixing assembly includes a fixing member, which is located at least inside the valve housing.
  • the fixing member is constructed to be detachably connected to the air duct when the air duct is inserted into the integrated pressure-maintaining valve, so that the air duct can separate the first sealing member from the first end through the valve core and connect the air duct with the air port of the air spring.
  • the valve core has a gas channel and a conducting port, the gas channel passes through an end of the valve core away from the air spring in the axial direction of the integrated pressure-maintaining valve, the conducting port is communicated with the gas channel, and the gas channel can be communicated with the air duct;
  • the first sealing member is clamped on the valve core, the valve housing has a sealing surface, and the first sealing member contacts the sealing surface, so that the conducting port of the valve core is located on a side of the first sealing member away from the air spring.
  • the reset member is a spring
  • a first step is provided inside the valve housing
  • the valve core has a valve core step
  • the spring abuts between the first step and the valve core step.
  • a second sealing member is further included, a second step is arranged inside the valve housing, the second step is farther away from the air spring in the axial direction of the integrated pressure-maintaining valve than the first step, the second sealing member is located between the pressure-maintaining assembly and the fixed assembly in the axial direction of the integrated pressure-maintaining valve, and the second sealing member abuts against the second step, and when the air duct is inserted into the integrated pressure-maintaining valve, the inner side of the second sealing member abuts against the outer wall of the air duct, and the outer side of the second sealing member abuts against the inner wall of the valve housing.
  • the fixing member can move upward along the axis of the integrated pressure-maintaining valve, and the fixing member includes a circular ring body, a plurality of cantilevers and a plurality of fixing protrusions.
  • the plurality of cantilevers and the plurality of fixing protrusions are fixedly connected to the circular ring body in sequence along the circumferential direction of the circular ring body, and two adjacent cantilevers are arranged at intervals.
  • At least one fixing protrusion is fixed on the inner side of each cantilever, and the fixing protrusion can squeeze the air duct.
  • the fixing assembly further includes a clamping ring, and the clamping ring can be clamped on the plurality of cantilevers of the fixing member.
  • the fixing member is fixed in the valve housing, and the fixing member includes a circular ring body and a plurality of cantilevers, the axis of the circular ring body is coaxially arranged with the axis of the valve core, and the plurality of cantilevers are sequentially fixedly connected along the circumferential direction of the circular ring body, and two adjacent cantilevers are connected.
  • the cantilevers are spaced apart from each other, and the cantilevers can squeeze the air duct.
  • the fixing assembly further includes a limiting ring, a fixing ring and a disassembly sleeve, a third step and a fourth step are provided inside the valve housing, the limiting ring and the fixing ring are fixed between the third step and the fourth step, and the annular body of the fixing member is clamped between the limiting ring and the fixing ring;
  • the disassembly sleeve is movably limited between the fixing ring and the fixing member.
  • the disassembly sleeve squeezes the multiple cantilevers of the fixing member along the axial direction of the integrated pressure-maintaining valve to make the multiple cantilevers of the fixing member detach from the air duct.
  • an embodiment of the present application provides an air suspension system, including an air spring, an air duct, and the integrated pressure-maintaining valve as described above;
  • the integrated pressure-maintaining valve is detachably installed between the air spring and the air conduit.
  • an embodiment of the present application provides a vehicle comprising the air suspension system as described above.
  • the embodiments of the present application provide an integrated pressure-maintaining valve, an air suspension system and a vehicle.
  • the integrated pressure-maintaining valve is connected to the air port of the air spring, and the reset member of the integrated pressure-maintaining valve applies a force to the valve core, so that the first sealing member can seal the first end, and the integrated pressure-maintaining valve is in a pressure-maintaining state, thereby ensuring the internal gas pressure of the air spring, avoiding adjustment of the shape of the air spring, and making the installation of the air spring time-saving and labor-saving.
  • the air duct is directly inserted into the integrated pressure-maintaining valve, and the air duct is fixed by the fixing member, thereby making the air duct and the air port of the air spring conductive, thereby making the installation process of the air suspension system time-saving and labor-saving.
  • the reset member of the integrated pressure-maintaining valve applies a force to the valve core, which can make the first sealing member seal the first end, and the integrated pressure-maintaining valve is in a pressure-maintaining state, ensuring the internal gas pressure of the air spring, thereby ensuring the driving safety of the vehicle;
  • the air duct is removed, and the reset member of the integrated pressure-maintaining valve applies a force to the valve core, which can make the first sealing member seal the first end, and the integrated pressure-maintaining valve is in a pressure-maintaining state, ensuring the internal gas pressure of the air spring, thereby facilitating the testing of the air tightness of the air spring.
  • the integrated pressure-maintaining valve provided in the embodiment of the present application integrates the pressure-maintaining component and the fixing component on the valve housing, so that the integrated pressure-maintaining valve has a pressure-maintaining function and a fixing function.
  • the integrated pressure-maintaining valve When the air suspension system is installed, the integrated pressure-maintaining valve is connected to the air port of the air spring, and the integrated pressure-maintaining valve is in a pressure-maintaining state. State, when the air conduit is directly inserted into the integrated pressure maintaining valve, the air conduit is fixed by the fixing piece.
  • FIG1 is a schematic diagram of an air suspension system for a vehicle provided in an embodiment of the present application.
  • FIG2 is a schematic structural diagram of an integrated pressure-maintaining valve provided in Example 1 of the present application.
  • FIG3 is a cross-sectional schematic diagram of the integrated pressure-maintaining valve in FIG2 ;
  • FIG4 is an exploded schematic diagram of the integrated pressure-maintaining valve in FIG2 ;
  • FIG5 is a schematic cross-sectional view of the valve housing in FIG2 ;
  • FIG7 is a schematic diagram of the fixing member in FIG3 from a first viewing angle
  • FIG12 is a schematic diagram of an integrated pressure-maintaining valve and an air duct after installation provided in Embodiment 2 of the present application;
  • FIG13 is a cross-sectional schematic diagram of the integrated pressure-maintaining valve and the air conduit in FIG12 ;
  • FIG14 is a schematic cross-sectional view of the valve housing in FIG12;
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as “first” or “second” may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • the terms “installation”, “connection”, “fixation” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • installation e.g., connection, “fixation” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. On the second feature.
  • the installation process of the air suspension system is time-consuming and labor-intensive.
  • the applicant has found through research that the reason for this problem is that during the installation process of the air suspension system, when the air spring is installed, there is no gas inside the air spring, and the air spring is in a weak state.
  • the shape of the air spring needs to be adjusted to the shape of the air spring filled with gas, and the adjustment process is time-consuming and labor-intensive.
  • the embodiments of the present application provide an integrated pressure-maintaining valve, an air suspension system and a vehicle.
  • the integrated pressure-maintaining valve has a pressure-maintaining function and a fixing function.
  • the integrated pressure-maintaining valve is connected to the air port of the air spring, and the integrated pressure-maintaining valve is in a pressure-maintaining state, which can ensure the internal gas pressure of the air spring and avoid adjusting the shape of the air spring, so that the installation of the air spring can be time-saving and labor-saving.
  • the air in the air tank 3 can be inflated through the air duct 5 and the integrated pressure-maintaining valve 1 by starting the air pump 2; when the air spring 4 needs to be deflated, the gas in the air spring 4 is discharged into the air tank 3 through the integrated pressure-maintaining valve 1 and the air duct 5.
  • the integrated pressure-maintaining valve 1 includes a valve housing 10, a pressure-maintaining component and a fixing component;
  • the valve housing 10 has a first end 101 and a second end 102 arranged opposite to each other in the axial direction of the integrated pressure-maintaining valve, and the valve housing 10 is detachably connected to the air port of the air spring 4;
  • the pressure-maintaining component includes a valve core 21, a reset member 22 and a first sealing member 23, the valve core 21 is located in the valve housing 10, the first sealing member 23 is fixed on the valve core 21, the reset member 22 is connected between the valve housing 10 and the valve core 21, and the reset member 22 is constructed to apply a force to the valve core 21 when the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, so that the first sealing member 23 seals the first end 101;
  • the fixing assembly includes a fixing member 31, and the fixing member 31 is at least located in the valve housing 10.
  • the fixing member 31 is constructed to be detachably connected to the air duct 5 when the air duct 5 is inserted into the integrated pressure-maintaining valve 1, so that the air duct 5 separates the first sealing member 23 from the first end 101 through the valve core 21, and the air duct 5 is connected to the air port of the air spring 4.
  • the axial direction of the integrated pressure-maintaining valve 1 is the X-axis direction.
  • the valve housing 10 has a cavity, which penetrates the valve housing 10 along the axial direction of the integrated pressure-maintaining valve 1 , and the cross section of the cavity may be circular.
  • the first end 101 of the valve housing 10 faces the air spring 4 , and the second end 102 is away from the air spring 4 .
  • a sealing ring 103 is provided on the valve housing 10, and the material of the sealing ring 103 can be rubber.
  • the sealing ring 103 can contact the outer wall of the valve housing 10 and the inner wall of the air port of the air spring 4 to ensure the sealing between the valve housing 10 and the air spring 4.
  • the valve core 21 can move in the cavity of the valve housing 10.
  • the first sealing member 23 can be made of rubber material. In some examples, the first sealing member 23 can be a rubber ring.
  • connection between the first sealing member 23 and the valve core 21 includes, but is not limited to, clamping and bonding.
  • the reset member 22 can be compressed after being subjected to external force, and can be restored to the initial state after the external force is removed.
  • the initial state of the reset member 22 is a state where no external force is applied.
  • the reset member 22 can be a spring or an elastic rubber.
  • the integrated pressure-maintaining valve 1 When the integrated pressure-maintaining valve 1 is installed on the air spring 4, and the air conduit 5 is not installed with the integrated pressure-maintaining valve 1, the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, and the integrated pressure-maintaining valve 1 can seal the gas in the air spring 4, and can ensure the internal gas pressure of the air spring 4.
  • the reset member 22 applies a force to the valve core 21, and the first sealing member 23 can seal the first end 101 of the valve housing 10, so that the first end 101 of the valve housing 10 can seal the air port of the air spring 4, and then the gas in the air spring 4 can be sealed, and the internal gas pressure of the air spring 4 can be ensured.
  • the air duct 5 When the integrated pressure-maintaining valve 1 is installed on the air spring 4, and the air duct 5 is installed with the integrated pressure-maintaining valve 1, the air duct 5 is inserted into the integrated pressure-maintaining valve 1, and the fixing member 31 fixes the air duct 5, so that the air duct 5 can separate the first sealing member 23 from the first end 101 through the valve core 21, that is, the first sealing member 23 does not seal the first end 101 of the valve housing 10, so that the air duct 5 can be connected with the air port of the air spring 4.
  • the integrated pressure-maintaining valve provided in the embodiment of the present application is connected to the air port of the air spring 4 through the integrated pressure-maintaining valve 1 during the installation of the air suspension system.
  • the reset member 22 of the integrated pressure-maintaining valve 1 applies a force to the valve core 21, so that the first sealing member 23 can seal the first end 101.
  • the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, thereby ensuring the internal gas pressure of the air spring 4, avoiding the need to adjust the shape of the air spring 4, and making the installation of the air spring 4 time-saving and labor-saving.
  • the air duct 5 is directly inserted into the integrated pressure-maintaining valve 1, and the air duct 5 is fixed by the fixing member 31, thereby making the air duct 5 and the air port of the air spring 4 conductive, thereby making the installation process of the air suspension system time-saving and labor-saving.
  • the reset member 22 of the integrated pressure-maintaining valve 1 applies a force to the valve core 21, so that the first sealing member 23 can seal the first end 101, and the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, ensuring the internal gas pressure of the air spring 4, thereby ensuring the driving safety of the vehicle;
  • the air duct 5 is removed, and the reset member 22 of the integrated pressure-maintaining valve 1 applies a force to the valve core 21, so that the first sealing member 23 can seal the first end 101, and the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, ensuring the internal gas pressure of the air spring 4, thereby facilitating the testing of the air tightness of the air spring 4.
  • the valve core 21 has a gas channel 211 and a conducting port 212.
  • the gas channel 211 penetrates the end of the valve core 21 away from the air spring 4 in the axial direction of the integrated pressure maintaining valve 1.
  • the conducting port 212 is connected to the gas channel 211, and the gas channel 211 can be connected to the air duct 5.
  • the first sealing member 23 is stuck on the valve core 21 , and the valve housing 10 has a sealing surface 1011 , and the first sealing member 23 contacts the sealing surface 1011 , so that the conducting port 212 of the valve core 21 is located on the side of the first sealing member 23 away from the air spring 4 .
  • the valve core 21 may be cylindrical in shape.
  • the valve core 21 at least partially fits the inner wall of the valve housing 10 , and the axis of the valve core 21 coincides with the axis of the integrated pressure-maintaining valve 1 .
  • the gas channel 211 may be cylindrical in shape.
  • the shape of the conducting opening 212 is not specifically set here.
  • the number of the conducting opening 212 can be one or more.
  • the first sealing member 23 is a rubber ring.
  • a clamping groove 213 is provided on the valve core 21, and the rubber ring is clamped in the clamping groove 213.
  • the reset member 22 is a spring.
  • a first step 104 is provided inside the valve housing 10 .
  • the valve core 21 has a valve core step 214 .
  • the spring abuts between the first step 104 and the valve core step 214 .
  • the sealing surface 1011 is located at the first end 101 of the valve housing 10. As shown in FIG4 , when the integrated pressure-maintaining valve 1 is installed on the air spring 4 and the air conduit 5 is not installed with the integrated pressure-maintaining valve 1, the integrated pressure-maintaining valve 1 is in a pressure-maintaining state, and the first sealing member 23 contacts the sealing surface 1011, so that the conducting port 212 of the valve core 21 can be located on the side of the first sealing member 23 away from the air spring 4, that is, the conducting port 212 of the valve core 21 is not in conduction with the air port of the air spring 4.
  • the air duct 5 When the integrated pressure-maintaining valve 1 is installed on the air spring 4, and the air duct 5 is installed with the integrated pressure-maintaining valve 1, the air duct 5 is inserted into the integrated pressure-maintaining valve 1, the air duct 5 pushes the valve core 21, the valve core 21 compresses the spring, and the valve core 21 moves toward the air port of the air spring 4, so that the air duct 5 can separate the first sealing component 23 from the sealing surface 1011 through the valve core 21, the gas channel 211 of the valve core 21 is connected with the air duct 5, the conducting port 212 of the valve core 21 is connected with the air port of the air spring 4, and the fixing part 31 fixes the air duct 5.
  • the integrated pressure-maintaining valve 1 also includes a second sealing member 40, a second step 105 is provided inside the valve housing 10, the second step 105 is farther away from the air spring 4 than the first step 104 in the axial direction of the integrated pressure-maintaining valve 1, the second sealing member 40 is located between the pressure-maintaining assembly and the fixed assembly in the axial direction of the integrated pressure-maintaining valve 1, and the second sealing member 40 is in contact with the second step 105.
  • the second sealing member 40 may be made of a rubber material. In some examples, the second sealing member 40 may be a rubber ring.
  • the number of the second sealing member 40 may be one or more, which is not specifically described here.
  • the fixing member 31 can move upward along the axis of the integrated pressure-maintaining valve 1 , and the fixing member 31 includes a circular ring body 311 , a plurality of cantilevers 312 and a plurality of fixing protrusions 313 , and the plurality of cantilevers 312 and the plurality of fixing protrusions 313 are sequentially fixedly connected along the circumferential direction of the circular ring body 311 , and an interval is arranged between two adjacent cantilevers 312 , and each cantilever 312 At least one fixing protrusion 313 is fixed on the inner side of the housing, and the fixing protrusion 313 can squeeze the air duct 5.
  • the cavity of the valve housing 10 includes a first section 111, a second section 112, a third section 113, a fourth section 114 and a fifth section 115 which are sequentially connected along the axial direction of the integrated pressure-maintaining valve 1.
  • the inner walls of the first section 111, the second section 112, the third section 113 and the fifth section 115 are all cylindrical, the inner wall of the fourth section 114 is conical, the diameter of the first section 111 is smaller than the diameter of the second section 112, the diameter of the second section 112 is smaller than the diameter of the third section 113, the diameter of the third section 113 is larger than the diameter of the fifth section 115, the diameter of the fourth section 114 gradually decreases from the third section 113 to the direction of the fifth section 115, a first step 104 is formed between the first section 111 and the second section 112, a second step 105 is formed between the second section 112 and the third section 113, and a third step 106 is formed between the fourth section 114 and the fifth section 115.
  • the annular body 311 of the fixing member 31 is located outside the valve housing 10 and can abut against the second end 102 of the valve housing 10 .
  • the multiple cantilevers 312 and multiple fixing protrusions 313 of the fixing member 31 are located inside the valve housing 10 .
  • the cantilever 312 has a cylindrical surface 3121 , a conical surface 3122 and a first limiting step 3123 .
  • the cylindrical surface 3121 fits with the inner wall of the third section 113
  • the conical surface 3122 fits with the inner wall of the fourth section 114 .
  • the first limiting step 3123 may abut against the third step 106 to limit the fixing member 31 from being separated from the valve housing 10 .
  • the number of the cantilever 312 and the fixing protrusion 313 is not specifically set.
  • the fixing protrusion 313 is connected to the cantilever 312 in an oblique manner, the number of the cantilever 312 is 4, and the number of the fixing protrusion 313 is 4.
  • the material of the cantilever 312 may be plastic, and the material of the fixing protrusion 313 may be metal.
  • the material of the air duct 5 is plastic. It should be noted that an insertion mark 501 is provided on the air duct 5, that is, the portion between the inserted end of the air duct 5 and the insertion mark 501 is the portion of the air duct 5 inserted into the integrated pressure maintaining valve 1.
  • the fixing member 31 pushes toward the air spring 4, the conical surface 3122 of the fixing member 31 slides along the inner wall of the fourth section 114 of the valve housing 10, and the fixing protrusion 313 of the fixing member 31 gradually disengages from the air duct 5.
  • the fixing protrusion 313 of the fixing member 31 disengages from the air duct 5, that is, the fixing member 31 does not contact the air duct 5, that is, the fixing member 31 unlocks the air duct 5.
  • the air duct 5 is pulled out of the integrated pressure-maintaining valve 1, and the air duct 5 is completely disassembled.
  • the fixing member 31 is fixed in the valve housing 10, and the fixing member 31 includes a circular ring body 311 and a plurality of cantilevers 312.
  • the axis of the circular ring body 311 is coaxially arranged with the axis of the valve core 21, and the plurality of cantilevers 312 are fixedly connected to the circular ring body 311 in sequence along the circumferential direction of the circular ring body 311.
  • Two adjacent cantilevers 312 are arranged at intervals, and the cantilevers 312 can squeeze the air duct 5.
  • the disassembly sleeve 35 also has a disassembly surface 352 , which is a conical surface.
  • the disassembly surface 352 is used to detach the multiple cantilevers 312 of the fixing member 31 from the air duct 5 when the air duct 5 is disassembled from the integrated pressure-maintaining valve 1 , so as to disassemble the air duct 5 .
  • the material of the cantilever 312 can be metal.
  • the material of the air duct 5 is plastic. It should be noted that an insertion mark 501 is provided on the air duct 5 (see FIG. 9 ), that is, the portion between the inserted end of the air duct 5 and the insertion mark 501 is the portion of the air duct 5 inserted into the integrated pressure maintaining valve 1.
  • the disassembly sleeve 35 is pulled in the direction away from the air spring 4, and the matching step 351 of the disassembly sleeve 35 is abutted against the second limiting step 341.
  • the disassembly surface 352 of the disassembly sleeve 35 does not contact the cantilever 312 of the fixing member 31.
  • the inserted end of the air duct 5 is inserted into the integrated pressure-maintaining valve 1, and the cantilever 312 of the fixing member 31 squeezes the air duct 5, and causes a depression on the surface of the air duct 5.
  • the air duct 5 contacts and pushes the valve core 21, and the valve core 21 compresses the spring, and the valve core 21 moves toward the air port of the air spring 4.
  • the first sealing member 23 is separated from the sealing surface 1011, and the gas channel 211 of the valve core 21 is connected with the air duct 5, and the conducting port 212 of the valve core 21 is connected with the air port of the air spring 4.
  • the insertion mark 501 enters the interior of the integrated pressure-maintaining valve 1
  • the insertion of the air duct 5 is stopped.
  • the fixing member 31 fixes the air duct 5, and the installation of the air duct 5 is completed. It should be noted that when the air conduction When the tube 5 is installed to the integrated pressure-maintaining valve 1 , the axis of the air conduit 5 can be coaxially arranged with the axis of the valve core 21 .
  • the disassembly sleeve 35 When the air duct 5 is disassembled from the integrated pressure-maintaining valve 1, the disassembly sleeve 35 is pushed toward the air spring 4, and the disassembly surface 352 of the disassembly sleeve 35 contacts the multiple cantilevers 312 of the fixing member 31, and the disassembly surface 352 presses the cantilevers 312 toward the limiting surface 331 of the limiting ring 33.
  • the cantilevers 312 contact the limiting surface 331, the multiple cantilevers 312 of the fixing member 31 are separated from the air duct 5.
  • the air duct 5 is pulled out of the integrated pressure-maintaining valve 1, and the disassembly of the air duct 5 is completed.
  • the limiting surface 331 of the limiting ring 33 can limit the multiple cantilevers 312 of the fixing member 31, and can prevent the multiple cantilevers 312 of the fixing member 31 from excessive deformation.
  • the integrated pressure-maintaining valve 1 in this embodiment has the same structure as the integrated pressure-maintaining valve provided in any of the above embodiments, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiments.
  • An embodiment of the present application provides a vehicle, including an air suspension system.
  • the air suspension system in this embodiment has the same structure as the air suspension system provided in any of the above embodiments, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiments.

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  • General Engineering & Computer Science (AREA)
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  • Vehicle Body Suspensions (AREA)

Abstract

一种集成保压阀、空气悬架系统及车辆，涉及车辆技术领域。集成保压阀（1）包括阀壳（10）、保压组件和固定组件；保压组件包括阀芯（21）、复位件（22）和第一密封件（23），第一密封件固定在阀芯上，复位件连接在阀壳和阀芯之间；固定组件包括固定件（31）。空气悬架系统安装过程中，通过集成保压阀与空气弹簧（4）的气口连接，集成保压阀的复位件对阀芯施加作用力，可以使得第一密封件密封第一端（101），集成保压阀处于保压状态，从而可以保证空气弹簧内部气体压力，避免了调整空气弹簧的形状，之后，将空气弹簧安装在车架后，空气导管（5）直接插入集成保压阀，空气导管被固定件固定，从而可以使空气导管与空气弹簧的气口导通，进而可以使得空气悬架系统安装过程省时省力。

Description

集成保压阀、空气悬架系统及车辆 技术领域
本申请涉及车辆技术领域，尤其涉及一种集成保压阀、空气悬架系统及车辆。
背景技术
随着汽车底盘电气化、智能化的快速发展，空气悬架的应用越来越普遍，空气弹簧利用气体的可压缩性，可实现车身固有频率的一致性；通过充入或排出以改变空气弹簧的内部压力可调节悬挂高度，提升车辆乘坐的舒适性。
现有技术中，空气悬架系统包括车架、气泵、储气罐、空气导管和空气弹簧。在空气悬架系统进行安装时，先调整空气弹簧的形状，之后将空气弹簧安装在车架上，之后再将气泵和储气罐安装在车架上，之后将空气导管连接在储气罐和空气弹簧之间。
然而，空气悬架系统安装过程中，存在费时费力的问题。
发明内容
本申请实施例提供一种集成保压阀、空气悬架系统及车辆，以解决空气悬架系统安装过程中，存在费时费力的问题。
第一方面，本申请实施例提供一种集成保压阀，应用于车辆的空气悬架系统，所述空气悬架系统包括空气弹簧和空气导管，所述集成保压阀包括阀壳、保压组件和固定组件；
所述阀壳在所述集成保压阀的轴向上具有相对设置的第一端和第二端，所述阀壳与所述空气弹簧的气口可拆卸连接；
所述保压组件包括阀芯、复位件和第一密封件，所述阀芯位于所述阀壳内，所述第一密封件固定在所述阀芯上，所述复位件连接在所述阀壳和 所述阀芯之间，所述复位件被构造为在所述集成保压阀处于保压状态时，对所述阀芯施加作用力，以使所述第一密封件密封所述第一端；
所述固定组件包括固定件，所述固定件至少位于所述阀壳内，所述固定件被构造为在所述空气导管插入所述集成保压阀时，与所述空气导管可拆卸连接，以使所述空气导管通过所述阀芯将所述第一密封件脱离所述第一端，并使所述空气导管与所述空气弹簧的气口导通。
在一种可能的实施方式中，所述阀芯具有气体通道和导通口，所述气体通道在所述集成保压阀的轴向上贯穿所述阀芯远离所述空气弹簧的一端，所述导通口与所述气体通道连通，所述气体通道可与所述空气导管连通；
所述第一密封件卡在所述阀芯上，所述阀壳具有密封面，所述第一密封件与所述密封面接触，以使阀芯的导通口位于所述第一密封件远离所述空气弹簧的一侧。
在一种可能的实施方式中，所述复位件为弹簧，所述阀壳内部设置有第一台阶，所述阀芯具有阀芯台阶，所述弹簧抵接在所述第一台阶和所述阀芯台阶之间。
在一种可能的实施方式中，还包括第二密封件，所述阀壳内部设置有第二台阶，所述第二台阶在所述集成保压阀的轴向上相对于所述第一台阶更远离所述空气弹簧，所述第二密封件在所述集成保压阀的轴向上位于所述保压组件和所述固定组件之间，且所述第二密封件与所述第二台阶相抵接，在所述空气导管插入所述集成保压阀时，所述第二密封件的内侧与所述空气导管的外壁抵接，所述第二密封件的外侧与所述阀壳的内壁相抵接。
在一种可能的实施方式中，所述固定件可沿着所述集成保压阀的轴向上移动，所述固定件包括圆环主体、多个悬臂和多个固定凸起，多个所述悬臂和多个所述固定凸起沿着所述圆环主体的圆周方向依次与所述圆环主体固定连接，相邻两个所述悬臂之间间隔设置，每个所述悬臂的内侧固定至少一个所述固定凸起，所述固定凸起可挤压所述空气导管。
在一种可能的实施方式中，所述固定组件还包括卡环，所述卡环可卡在所述固定件的多个所述悬臂上。
在一种可能的实施方式中，所述固定件固定在所述阀壳内，所述固定件包括圆环主体和多个悬臂，所述圆环主体的轴线与所述阀芯的轴线同轴设置，多个所述悬臂沿着所述圆环主体的圆周方向依次固定连接，相邻两 个所述悬臂之间间隔设置，所述悬臂可挤压所述空气导管。
在一种可能的实施方式中，所述固定组件还包括限位环、固定环和拆卸套，所述阀壳内部设置有第三台阶和第四台阶，所述限位环和所述固定环固定在所述第三台阶和所述第四台阶之间，所述固定件的圆环主体夹在所述限位环和所述固定环之间；
所述拆卸套可活动的限位在所述固定环和所述固定件之间，在所述空气导管从所述集成保压阀上拆卸时，所述拆卸套沿着所述集成保压阀的轴向挤压所述固定件的多个悬臂，以使所述固定件的多个悬臂脱离所述空气导管。
第二方面，本申请实施例提供一种空气悬架系统，包括空气弹簧、空气导管和如上所述的集成保压阀；
所述集成保压阀可拆卸地安装在所述空气弹簧和所述空气导管之间。
第三方面，本申请实施例提供一种车辆，包括如上所述的空气悬架系统。
本申请实施例提供一种集成保压阀、空气悬架系统及车辆，空气悬架系统安装过程中，通过集成保压阀与空气弹簧的气口连接，集成保压阀的复位件对阀芯施加作用力，可以使得第一密封件密封第一端，集成保压阀处于保压状态，从而可以保证空气弹簧内部气体压力，避免了调整空气弹簧的形状，可以使空气弹簧安装省时省力，之后，将空气弹簧安装在车架后，空气导管直接插入集成保压阀，空气导管被固定件固定，从而可以使空气导管与空气弹簧的气口导通，进而可以使得空气悬架系统安装过程省时省力。此外，在空气导管脱开集成保压阀时，集成保压阀的复位件对阀芯施加作用力，可以使得第一密封件密封第一端，集成保压阀处于保压状态，保证空气弹簧内部气体压力，从而车辆的行车安全；在对空气弹簧气密性检测时，拆卸空气导管，集成保压阀的复位件对阀芯施加作用力，可以使得第一密封件密封第一端，集成保压阀处于保压状态，保证空气弹簧内部气体压力，从而可以便于检测空气弹簧的气密性。
还有，本申请实施例提供的集成保压阀，将保压组件和固定组件集成在阀壳上，使得集成保压阀具有保压功能和固定功能，当空气悬架系统安装过程中，通过集成保压阀与空气弹簧的气口连接，集成保压阀处于保压 状态，当空气导管直接插入集成保压阀时，空气导管被固定件固定。
当空气导管从集成保压阀上拆卸时，直接将空气导管从固定件上拆卸，即可完成拆卸，从而使得空气导管拆卸简单和方便。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种车辆的空气悬架系统的示意图；
图2为本申请实施例一提供的一种集成保压阀的结构示意图；
图3为图2中的集成保压阀的剖面示意图；
图4为图2中的集成保压阀的分解示意图；
图5为图2中的阀壳的剖面示意图；
图6为图2中的阀芯的剖面示意图；
图7为图3中的固定件的第一视角示意图；
图8为图3中的固定件的第二视角示意图；
图9为图2中的集成保压阀未与空气导管时的示意图；
图10为图9中的集成保压阀的卡环未安装时的示意图；
图11为图10中的集成保压阀的卡环安装后的示意图；
图12为本申请实施例二提供的一种集成保压阀与空气导管安装后的示意图；
图13为图12中的集成保压阀与空气导管的剖面示意图；
图14为图12中的阀壳的剖面示意图；
图15为图13中的固定件的结构示意图；
图16为图13中的限位环的结构示意图；
图17为图13中的固定环的结构示意图；
图18为图13中的拆卸套的结构示意图。
附图标记说明：
1-集成保压阀；2-气泵；3-储气罐；4-空气弹簧；5-空气导管；501-插
入标记；10-阀壳；101-第一端；1011-密封面；102-第二端；103-密封圈； 104-第一台阶；105-第二台阶；106-第三台阶；107-第四台阶；111-第一段；112-第二段；113-第三段；114-第四段；115-第五段；21-阀芯；211-气体通道；212-导通口；213-卡槽；214-阀芯台阶；22-复位件；23-第一密封件；31-固定件；311-圆环主体；312-悬臂；3121-圆柱面；3122-锥面；3123-第一限位台阶；313-固定凸起；32-卡环；33-限位环；331-限位面；34-固定环；341-第二限位台阶；35-拆卸套；351-配合台阶；352-拆卸面；40-第二密封件。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小 于第二特征。
在以上描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指接合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式接合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
正如背景技术所述，空气悬架系统安装过程中，存在费时费力的问题。经申请人研究发现，出现这种问题的原因在于，空气悬架系统安装过程中，空气弹簧安装时，空气弹簧的内部没有气体，空气弹簧处于疲软状态，需要将空气弹簧的形状调整成如空气弹簧充有气体的形状，调整过程，存在费时费力的问题。
为了解决上述问题，本申请实施例提供一种集成保压阀、空气悬架系统及车辆，集成保压阀具有保压功能和固定功能，当空气悬架系统安装过程中，通过集成保压阀与空气弹簧的气口连接，集成保压阀处于保压状态，可以保证空气弹簧内部气体压力，避免了调整空气弹簧的形状，可以使空气弹簧安装省时省力，将空气弹簧安装在车架后，空气导管直接插入集成保压阀，空气导管被集成保压阀固定，从而可以使空气导管与空气弹簧的气口导通，进而可以使得空气悬架系统安装过程省时省力。
下面结合具体实施例对本申请实施例提供的集成保压阀、空气悬架系统及车辆进行详细说明。
如图1所示，本申请实施例提供一种集成保压阀1，应用于车辆的空气悬架系统。空气悬架系统包括车架、气泵2、储气罐3、空气弹簧4和空气导管5，气泵2、储气罐3和空气弹簧4安装在车架上，气泵2与储气罐3连接，空气导管5与储气罐3连接，集成保压阀1可拆卸的安装在空气导管5与空气弹簧4之间。当空气弹簧4需要充气时，启动气泵2可以将储气罐3的气体通过空气导管5和集成保压阀1对空气弹簧4进行充气；当空气弹簧4需要放气时，将空气弹簧4中的气体通过集成保压阀1和空气导管5排放到储气罐3中。
如图2至图5所示，集成保压阀1包括阀壳10、保压组件和固定组件；阀壳10在集成保压阀的轴向上具有相对设置的第一端101和第二端102，阀壳10与空气弹簧4的气口可拆卸连接；保压组件包括阀芯21、复位件22和第一密封件23，阀芯21位于阀壳10内，第一密封件23固定在阀芯21上，复位件22连接在阀壳10和阀芯21之间，复位件22被构造为在集成保压阀1处于保压状态时，对阀芯21施加作用力，以使第一密封件23密封第一端101；固定组件包括固定件31，固定件31至少位于阀壳10内，固定件31被构造为在空气导管5插入集成保压阀1时，与空气导管5可拆卸连接，以使空气导管5通过阀芯21将第一密封件23脱离第一端101，并使空气导管5与空气弹簧4的气口导通。
其中，集成保压阀1的轴向为X轴方向。阀壳10具有空腔，空腔沿着集成保压阀1的轴向贯穿阀壳10，空腔的截面可以为圆形。
在集成保压阀1的轴向上，阀壳10的第一端101朝向空气弹簧4，第二端102远离空气弹簧4。
如图2所示，阀壳10上设置有密封圈103，密封圈103的材质可以为橡胶。当阀壳10与空气弹簧4连接时，密封圈103可以与阀壳10的外壁和空气弹簧4的气口的内壁接触，保证阀壳10与空气弹簧4之间的密封性。
阀芯21可在阀壳10的空腔内活动。第一密封件23可以采用橡胶材料制成。在一些示例中，第一密封件23可以为橡胶圈。
第一密封件23与阀芯21的连接关系包括但不限于卡接、粘接。
复位件22受到外力后可压缩，在外力去除后可恢复到初始状态。复位件22的初始状态为未受到外力的状态。复位件22可以为弹簧，也可以为弹性橡胶。
当将集成保压阀1安装在空气弹簧4上，且空气导管5不与集成保压阀1安装时，集成保压阀1处于保压状态，集成保压阀1可以将空气弹簧4中的气体封住，可以保证空气弹簧4内部气体压力。具体而言，如图4所示，当将集成保压阀1安装在空气弹簧4上，且空气导管5不与集成保压阀1安装时，复位件22对阀芯21施加作用力，可以使第一密封件23密封阀壳10的第一端101，从而使得阀壳10的第一端101对空气弹簧4的气口进行密封，进而可以将空气弹簧4中的气体封住，可以保证空气弹簧4内部气体压力。
当将集成保压阀1安装在空气弹簧4上，且空气导管5与集成保压阀1安装时，空气导管5插入集成保压阀1，固定件31固定空气导管5，可以使空气导管5通过阀芯21将第一密封件23脱离第一端101，也即是说，第一密封件23不对阀壳10的第一端101密封，从而可以使得空气导管5与空气弹簧4的气口导通。
本申请实施例提供的集成保压阀，在空气悬架系统安装过程中，通过集成保压阀1与空气弹簧4的气口连接，集成保压阀1的复位件22对阀芯21施加作用力，可以使得第一密封件23密封第一端101，集成保压阀1处于保压状态，从而可以保证空气弹簧4内部气体压力，避免了调整空气弹簧4的形状，可以使空气弹簧4安装省时省力，之后，将空气弹簧4安装在车架后，空气导管5直接插入集成保压阀1，空气导管5被固定件31固定，从而可以使空气导管5与空气弹簧4的气口导通，进而可以使得空气悬架系统安装过程省时省力。此外，在空气导管5脱开集成保压阀1时，集成保压阀1的复位件22对阀芯21施加作用力，可以使得第一密封件23密封第一端101，集成保压阀1处于保压状态，保证空气弹簧4内部气体压力，从而保证车辆的行车安全；在对空气弹簧气密性检测时，拆卸空气导管5，集成保压阀1的复位件22对阀芯21施加作用力，可以使得第一密封件23密封第一端101，集成保压阀1处于保压状态，保证空气弹簧4内部气体压力，从而可以便于检测空气弹簧4的气密性。
在一种可能的实施方式中，如图6所示，阀芯21具有气体通道211和导通口212，气体通道211在集成保压阀1的轴向上贯穿阀芯21远离空气弹簧4的一端，导通口212与气体通道211连通，气体通道211可与空气导管5连通。
如图4和图5所示，第一密封件23卡在阀芯21上，阀壳10具有密封面1011，第一密封件23与密封面1011接触，以使阀芯21的导通口212位于第一密封件23远离空气弹簧4的一侧。
其中，阀芯21的形状可以为圆柱形。阀芯21至少部分与阀壳10的内壁贴合，阀芯21的轴线与集成保压阀1的轴线重合。
气体通道211的形状可以为圆柱形。
导通口212的形在此不做具体设置。导通口212的数量可以为一个，也可以为多个。
第一密封件23为橡胶圈。阀芯21上设置有卡槽213，橡胶圈卡在卡槽213上。
复位件22为弹簧，阀壳10内部设置有第一台阶104，阀芯21具有阀芯台阶214，弹簧抵接在第一台阶104和阀芯台阶214之间。
密封面1011位于阀壳10的第一端101。如图4所示，当将集成保压阀1安装在空气弹簧4上，且空气导管5不与集成保压阀1安装时，集成保压阀1处于保压状态，第一密封件23与密封面1011接触，可以使阀芯21的导通口212位于第一密封件23远离空气弹簧4的一侧，也即是说，阀芯21的导通口212不与空气弹簧4的气口导通。
当将集成保压阀1安装在空气弹簧4上，且空气导管5与集成保压阀1安装时，空气导管5插入集成保压阀1，空气导管5推动阀芯21，阀芯21压缩弹簧，阀芯21朝向空气弹簧4的气口方向移动，可以使空气导管5通过阀芯21将第一密封件23脱离密封面1011，阀芯21的气体通道211与空气导管5连通，阀芯21的导通口212与空气弹簧4的气口导通，固定件31固定空气导管5。
在一种可能的实施方式中，如图3和图4所示，集成保压阀1还包括第二密封件40，阀壳10内部设置有第二台阶105，第二台阶105在集成保压阀1的轴向上相对于第一台阶104更远离空气弹簧4，第二密封件40在集成保压阀1的轴向上位于保压组件和固定组件之间，且第二密封件40与第二台阶105相抵接。
其中，在空气导管5插入集成保压阀1时，第二密封件40的内侧与空气导管5的外壁抵接，第二密封件40的外侧与阀壳10的内壁相抵接。如此设置，可以提高空气导管5与集成保压阀1之间的密封性，避免空气导管5与集成保压阀1之间出现漏气。
第二密封件40可以采用橡胶材料制成。在一些示例中，第二密封件40可以为橡胶圈。
第二密封件40的数量可以为一个，也可以为多个，在此不做具体设置。
在一种可能的实施方式中，如图7和图8所示，固定件31可沿着集成保压阀1的轴向上移动，固定件31包括圆环主体311、多个悬臂312和多个固定凸起313，多个悬臂312和多个固定凸起313沿着圆环主体311的圆周方向依次固定连接，相邻两个悬臂312之间间隔设置，每个悬臂312 的内侧固定至少一个固定凸起313，固定凸起313可挤压空气导管5。
其中，如图5所示，阀壳10的空腔包括沿着集成保压阀1的轴向依次连接的第一段111、第二段112、第三段113、第四段114和第五段115，第一段111、第二段112、第三段113和第五段115的内壁均为圆柱形，第四段114的内壁为锥形，第一段111的直径小于第二段112的直径，第二段112的直径小于第三段113的直径，第三段113的直径大于第五段115的直径，第四段114的直径由第三段113指向第五段115的方向逐渐减小，第一段111和第二段112之间形成第一台阶104，第二段112与第三段113之间形成第二台阶105，第四段114与第五段115之间形成第三台阶106。
固定件31的圆环主体311位于阀壳10的外部，圆环主体311可与阀壳10的第二端102相抵接，固定件31的多个悬臂312和多个固定凸起313位于阀壳10的内部。
悬臂312具有圆柱面3121、锥面3122和第一限位台阶3123，圆柱面3121与第三段113的内壁贴合，锥面3122与第四段114的内壁贴合。
第一限位台阶3123可与第三台阶106抵接，以限制固定件31脱离阀壳10。
悬臂312和固定凸起313的数量在不做具体设置。在一些示例中，固定凸起313与悬臂312倾斜连接，悬臂312的数量为4个，固定凸起313的数量为4个。
悬臂312的材料可以为塑料，固定凸起313的材料可以为金属。空气导管5的材料为塑料。需要说明的是，空气导管5上设置有插入标记501，也即是说，空气导管5插入的一端与插入标记501之间的部分为空气导管5插入集成保压阀1的部分。
如图9所示，当空气导管5与集成保压阀1安装时，固定件31朝向空气弹簧4推动，使得圆环主体311与阀壳10的第二端102相抵接，此时，圆柱面3121与第三段113的内壁贴合；之后，如图10所示，空气导管5插入的一端插入集成保压阀1，空气导管5与阀芯21接触且推动阀芯21，阀芯21压缩弹簧，阀芯21朝向空气弹簧4的气口方向移动，第一密封件23脱离密封面1011，阀芯21的气体通道211与空气导管5连通，阀芯21的导通口212与空气弹簧4的气口导通，当插入标记501进入集成保压阀1的内部时，停止插入空气导管5；之后，将固定件31背离空气弹簧4拉 出，固定件31的锥面3122沿着阀壳10的第四段114的内壁滑动，固定件31的悬臂312被第四段114的内壁挤压，固定件31的悬臂312朝向空气导管5变形，固定件31的固定凸起313挤压空气导管5，并使得空气导管5的表面产生凹陷，当第一限位台阶3123与第三台阶106抵接时，停止拉动固定件31，此时，圆柱面3121与第三段113的内壁贴合，锥面3122与第四段114的内壁贴合，固定件31固定空气导管5，空气导管5安装完成。需要说明的是，当空气导管5安装到集成保压阀1时，空气导管5的轴线与阀芯21的轴线同轴设置。
当空气导管5从集成保压阀1上拆卸时，固定件31朝向空气弹簧4推动，固定件31的锥面3122沿着阀壳10的第四段114的内壁滑动，固定件31的固定凸起313逐渐脱离空气导管5，当圆环主体311与阀壳10的第二端102相抵接时，固定件31的固定凸起313脱离空气导管5，也即是说，固定件31不与空气导管5接触，也即是说，固定件31对空气导管5解锁，此时，将空气导管5从集成保压阀1拉出，空气导管5拆卸完成。
在一种可能的实施方式中，如图11所示，固定组件还包括卡环32，卡环32可卡在固定件31的多个悬臂312上。当空气导管5安装到集成保压阀1时，卡环32卡在固定件31的多个悬臂312上，卡环32分别与圆环主体311和阀壳10的第二端102相抵接，从而可以防止固定件31朝向空气弹簧4移动，可以使得集成保压阀1对空气导管5固定稳定。
其中，当空气导管5从集成保压阀1上拆卸时，先将卡环32从固定件31上拆下，之后，固定件31朝向空气弹簧4推动，圆环主体311与阀壳10的第二端102相抵接，之后，空气导管5从集成保压阀1拉出，空气导管5拆卸完成。
实施例二中的集成保压阀1与实施例一中的集成保压阀1相比区别在于：阀壳10和固定组件不同。实施例二中的集成保压阀1的保压组件与实施例一中的集成保压阀1的保压组件相同。
在一种可能的实施方式中，如图12至图15所示，固定件31固定在阀壳10内，固定件31包括圆环主体311和多个悬臂312，圆环主体311的轴线与阀芯21的轴线同轴设置，多个悬臂312沿着圆环主体311的圆周方向依次与圆环主体311固定连接，相邻两个悬臂312之间间隔设置，悬臂312可挤压空气导管5。
其中，如图15所示，悬臂312远离圆环主体311的一端朝向圆环主体311的轴线倾斜。
如图13和图14所示，固定组件还包括限位环33、固定环34和拆卸套35，阀壳内部设置有第三台阶106和第四台阶107，限位环33和固定环34固定在第三台阶106和第四台阶107之间，固定件31的多个悬臂312位于限位环33内，固定件31的圆环主体311夹在限位环33和固定环34之间，从而可以将固定件31固定在阀壳10内。
如图16所示，限位环33具有限位面331，限位面331为锥面。
拆卸套35可活动的限位在固定环34和固定件31之间，在空气导管5从集成保压阀1上拆卸时，拆卸套35沿着集成保压阀1的轴向挤压固定件31的多个悬臂312，以使固定件31的多个悬臂312脱离空气导管5。
如图17和图18所示，固定环34具有第二限位台阶341，拆卸套35具有配合台阶351，配合台阶351可与第二限位台阶341，以限制拆卸套35脱离阀壳10。
如图18所示，拆卸套35还具有拆卸面352，拆卸面352为圆锥面，拆卸面352用于当空气导管5从集成保压阀1上拆卸时，将固定件31的多个悬臂312脱离空气导管5，以使空气导管5拆卸。
悬臂312的材料可以为金属。空气导管5的材料为塑料。需要说明的是，空气导管5上设置有插入标记501(可以参考图9所示)，也即是说，空气导管5插入的一端与插入标记501之间的部分为空气导管5插入集成保压阀1的部分。
如图12所示，当空气导管5与集成保压阀1安装时，将拆卸套35朝向远离空气弹簧4的方向拉动，并使得拆卸套35的配合台阶351与第二限位台阶341抵接，此时，拆卸套35的拆卸面352不与固定件31的悬臂312接触；之后，空气导管5插入的一端插入集成保压阀1，固定件31的悬臂312挤压空气导管5，并使得空气导管5的表面产生凹陷，空气导管5与阀芯21接触且推动阀芯21，阀芯21压缩弹簧，阀芯21朝向空气弹簧4的气口方向移动，第一密封件23脱离密封面1011，阀芯21的气体通道211与空气导管5连通，阀芯21的导通口212与空气弹簧4的气口导通，当插入标记501进入集成保压阀1的内部时，停止插入空气导管5，此时，固定件31固定空气导管5，空气导管5安装完成。需要说明的是，当空气导 管5安装到集成保压阀1时，空气导管5的轴线可以与阀芯21的轴线同轴设置。
当空气导管5从集成保压阀1上拆卸时，将拆卸套35朝向空气弹簧4推动，拆卸套35的拆卸面352与固定件31的多个悬臂312接触，拆卸面352朝向限位环33的限位面331挤压悬臂312，当悬臂312与限位面331接触时，固定件31的多个悬臂312脱离空气导管5，此时，将空气导管5从集成保压阀1拉出，空气导管5拆卸完成。通过限位环33的限位面331可以对固定件31的多个悬臂312进行限位，可以防止固定件31的多个悬臂312过度变形。
本申请实施例提供一种空气悬架系统，包括空气弹簧4、空气导管5和集成保压阀1；集成保压阀1可拆卸地安装在空气弹簧4和空气导管5之间。
其中，本实施例中的集成保压阀1和上述任一实施例提供的集成保压阀的结构相同，并能带来相同或者类似的技术效果，在此不再一一赘述，具体可参照上述实施例的描述。
本申请实施例提供一种车辆，包括空气悬架系统。
其中，本实施例中的空气悬架系统和上述任一实施例提供的空气悬架系统的结构相同，并能带来相同或者类似的技术效果，在此不再一一赘述，具体可参照上述实施例的描述。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (10)

  1. 一种集成保压阀，应用于车辆的空气悬架系统，所述空气悬架系统包括空气弹簧和空气导管，其特征在于，所述集成保压阀包括阀壳、保压组件和固定组件；
    所述阀壳在所述集成保压阀的轴向上具有相对设置的第一端和第二端，所述阀壳与所述空气弹簧的气口可拆卸连接；
    所述保压组件包括阀芯、复位件和第一密封件，所述阀芯位于所述阀壳的第一端，所述第一密封件固定在所述阀芯上，所述复位件连接在所述阀壳和所述阀芯之间，所述复位件被构造为在所述集成保压阀处于保压状态时，对所述阀芯施加作用力，以使所述第一密封件密封所述第一端；
    所述固定组件包括固定件，所述固定件至少部分位于所述阀壳内，所述固定件被构造为在所述空气导管插入所述集成保压阀时，与所述空气导管可拆卸连接，以使所述空气导管通过所述阀芯将所述第一密封件脱离所述第一端，并使所述空气导管与所述空气弹簧的气口导通。
  2. 根据权利要求1所述的集成保压阀，其特征在于，所述阀芯具有气体通道和导通口，所述气体通道在所述集成保压阀的轴向上贯穿所述阀芯远离所述空气弹簧的一端，所述导通口与所述气体通道连通，所述气体通道可与所述空气导管连通；
    所述第一密封件卡在所述阀芯上，所述阀壳具有密封面，所述第一密封件与所述密封面接触，以使阀芯的导通口位于所述第一密封件远离所述空气弹簧的一侧。
  3. 根据权利要求2所述的集成保压阀，其特征在于，所述复位件为弹簧，所述阀壳内部设置有第一台阶，所述阀芯具有阀芯台阶，所述弹簧抵接在所述第一台阶和所述阀芯台阶之间。
  4. 根据权利要求3所述的集成保压阀，其特征在于，还包括第二密封件，所述阀壳内部设置有第二台阶，所述第二台阶在所述集成保压阀的轴向上相对于所述第一台阶更远离所述空气弹簧，所述第二密封件在所述集成保压阀的轴向上位于所述保压组件和所述固定组件之间，且所述第二密封件与所述第二台阶相抵接，在所述空气导管插入所述集成保压阀时，所述第二密封件的内侧与所述空气导管的外壁抵接，所述第二密封件的外侧 与所述阀壳的内壁相抵接。
  5. 根据权利要求1-4任一项所述的集成保压阀，其特征在于，所述固定件可沿着所述集成保压阀的轴向上移动，所述固定件包括圆环主体、多个悬臂和多个固定凸起，多个所述悬臂和多个所述固定凸起沿着所述圆环主体的圆周方向依次固定连接，相邻两个所述悬臂之间间隔设置，每个所述悬臂的内侧固定至少一个所述固定凸起，所述固定凸起可挤压所述空气导管。
  6. 根据权利要求5所述的集成保压阀，其特征在于，所述固定组件还包括卡环，所述卡环可卡在所述固定件的多个所述悬臂上。
  7. 根据权利要求1-4任一项所述的集成保压阀，其特征在于，所述固定件固定在所述阀壳内，所述固定件包括圆环主体和多个悬臂，所述圆环主体的轴线与所述阀芯的轴线同轴设置，多个所述悬臂沿着所述圆环主体的圆周方向依次与所述圆环主体固定连接，相邻两个所述悬臂之间间隔设置，所述悬臂可挤压所述空气导管。
  8. 根据权利要求7所述的集成保压阀，其特征在于，所述固定组件还包括限位环、固定环和拆卸套，所述阀壳内部设置有第三台阶和第四台阶，所述限位环和所述固定环固定在所述第三台阶和所述第四台阶之间，所述固定件的圆环主体夹在所述限位环和所述固定环之间；
    所述拆卸套可活动的限位在所述固定环和所述固定件之间，在所述空气导管从所述集成保压阀上拆卸时，所述拆卸套沿着所述集成保压阀的轴向挤压所述固定件的多个悬臂，以使所述固定件的多个悬臂脱离所述空气导管。
  9. 一种空气悬架系统，其特征在于，包括空气弹簧、空气导管和如权利要求1-8任一项所述的集成保压阀；
    所述集成保压阀可拆卸地安装在所述空气弹簧和所述空气导管之间。
  10. 一种车辆，其特征在于，包括如权利要求9所述的空气悬架系统。
PCT/CN2023/140444 2023-12-20 2023-12-20 集成保压阀、空气悬架系统及车辆 Pending WO2025129532A1 (zh)

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EP23915178.0A EP4600525A1 (en) 2023-12-20 2023-12-20 Integrated pressure retaining valve, air suspension system, and vehicle

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