Automobile suspension, automobile chassis and vehicle

Abstract

The invention provides an automobile suspension, an automobile chassis and a vehicle. The automobile suspension comprises an elastic element, a damping mechanism and a supporting assembly. According to the automobile suspension provided by the invention, when an automobile runs on a road surface and enters or exits from a pit, the elastic element on the automobile suspension can extend or be compressed, and the damping piece of the damping mechanism can be synchronously driven to extend or be compressed, so that the supporting rod of the supporting assembly is synchronously driven to rotate around the rotating piece in the forward direction or the reverse direction by a corresponding angle; the movable supporting part of the supporting rod can stably support the automobile frame, the automobile frame is kept at the original height position as much as possible, and therefore an automobile body is kept stable. Meanwhile, the elastic element can absorb vibration and store energy in the process of elastic deformation, the damping mechanism dissipates potential energy stored by the elastic element through damping force generated when the damping medium flows between the damping piece and the cavity, rebound of the elastic element is restrained, and the frame can be kept in a stable state.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an automobile suspension, an automobile chassis and a vehicle. Background Art

[0002] Suspension is the general term for all transmission and connection devices between the frame and axles of a car. Its function is to transmit the forces and torques acting between the wheels and the frame, to cushion the impact forces transmitted to the frame or body by uneven roads, and to reduce the vibrations caused thereby, to ensure that the car can run smoothly.

[0003] According to the control method, suspension can be divided into passive suspension, active suspension and semi-active suspension. Passive suspension has a simple structure, low cost, easy manufacturing and maintenance, but the passive suspension has poor comfort, especially on bumpy roads. Active suspension can automatically adjust the stiffness and damping properties according to road conditions and driving conditions to improve driving comfort and safety; semi-active suspension has a certain adaptive adjustment ability. However, the manufacturing cost of active suspension and semi-active suspension is high, the structure and control are complex, the energy consumption is large, and the weight of the vehicle will increase. Summary of the invention

[0004] In view of this, the purpose of the present application is to propose an automobile suspension, an automobile chassis and a vehicle to improve the aforementioned technical problems existing in the existing suspension.

[0005] In order to achieve the above-mentioned object, in a first aspect, the present application provides a vehicle suspension, comprising an elastic element and a shock absorbing mechanism, and also comprising a support assembly;

[0006] The shock absorbing mechanism comprises:

[0007] A damping member, one end of which is provided with a bracket for connecting to the axle;

[0008] A cavity, the cavity being a closed container with a fixed volume, the cavity being connected to the damping element through a pipeline; and

[0009] a damping medium, the damping medium flowing between the damping member and the cavity through the conduit;

[0010] The elastic element is connected to the bracket;

[0011] The support assembly includes a support rod, one end of which is hinged to the bracket and the other end of which has a movable support portion for supporting the frame. The middle portion of the support rod has a rotating member for fixed installation at a preset position of the axle. The axial direction of the support rod and the axial direction of the rotating member are arranged perpendicular to each other. The support rod is movably connected to the rotating member and can reciprocate along the axial direction of the support rod relative to the rotating member.

[0012] Optionally, the damping member includes a cylinder body and a piston member connected to a vehicle frame, the piston member includes a piston rod fixedly connected to the vehicle frame and a piston arranged at one end of the piston rod, one end of the piston rod is arranged in the cylinder body along the axial direction of the cylinder body, and the other end of the piston rod passes outward from the cylinder body and is arranged in a sliding seal with the cylinder body;

[0013] The piston sliding seal is arranged in the cylinder body, and the piston divides the interior of the cylinder body into a first inner cavity and a second inner cavity isolated from each other, and the first inner cavity and the second inner cavity are both connected to the cavity through the pipeline;

[0014] The bracket is mounted on the cylinder body at an end opposite to the end through which the piston rod passes.

[0015] Optionally, the movable support portion includes a first bearing, which is rotatably mounted on an end portion of the support rod, and an axial direction of the first bearing is arranged perpendicular to an axial direction of the support rod.

[0016] Optionally, the rotating member includes a second bearing and a connecting sleeve fixedly mounted on an outer ring of the second bearing, the connecting sleeve is provided with a sliding sleeve, and the support rod is slidably mounted in the sliding sleeve.

[0017] Optionally, the damping medium is air.

[0018] Optionally, the cavity is also connected to an air pump.

[0019] Optionally, the air pressure in the cavity is 10 bar-12.5 bar.

[0020] Optionally, the elastic element is a coil spring, one end of the coil spring abuts against the bracket, and the coil spring is sleeved on the damping member.

[0021] In a second aspect, the present application provides a vehicle chassis, comprising the vehicle suspension as described in the first aspect.

[0022] In a third aspect, the present application provides a vehicle, comprising the automobile chassis as described in the second aspect.

[0023] The beneficial effects of this application are embodied in:

[0024] When the automobile suspension provided by the present application is used, when the automobile enters or exits a pothole on the road, the elastic element on the automobile suspension will extend or be compressed, which will synchronously drive the damping member of the shock absorbing mechanism to extend or compress, thereby synchronously driving the support rod to rotate forward or reversely around the rotating member at a corresponding angle, so that the movable support part of the support rod can form a stable support for the automobile frame, and try to keep the automobile frame at its original height position, thereby keeping the vehicle body stable.

[0025] At the same time, the elastic element absorbs vibration and stores energy during the elastic deformation process. The shock absorbing mechanism dissipates the potential energy stored in the elastic element through the damping force generated by the damping medium flowing between the damping element and the cavity, thereby suppressing the rebound of the elastic element and allowing the frame to maintain a stable state.

[0026] In summary, the automobile suspension provided by the present application has a simple structure, low cost, is easy to manufacture and maintain, can better absorb vibrations during vehicle driving, and form a stable support for the automobile frame. It has good comfort and can significantly reduce noise and vibrations from the road, thereby improving ride comfort.

[0027] The present application also provides an automobile chassis, including the above automobile suspension. Therefore, the automobile chassis has all the beneficial effects of the above automobile suspension, which will not be specifically described.

[0028] The present application also provides a vehicle, including the above-mentioned automobile chassis. Therefore, the vehicle has all the beneficial effects of the above-mentioned automobile chassis, which will not be specifically described. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0030] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. For ordinary technicians in this field, other accompanying drawings can also be obtained based on these accompanying drawings without paying creative labor.

[0031] Figure 1 A schematic diagram of the structure of the automobile suspension provided in the embodiment of the present application Figure 1 ;

[0032] Figure 2 A schematic diagram of the structure of the automobile suspension provided in the embodiment of the present application Figure 2 ;

[0033] Figure 3 A schematic diagram of the structure of the support assembly provided in an embodiment of the present application.

[0034] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “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”, and “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.

[0041] The automobile chassis consists of four parts: the transmission system, the running system, the steering system and the braking system. The function of the chassis is to support and install the automobile engine and its components and assemblies, form the overall shape of the automobile, and receive the power of the engine to make the car move.

[0042] The axle is part of the running system and is used to carry weight. The axle of a car is connected to the frame through the suspension, and wheels are installed at both ends. The function of the axle is to bear the load of the car and maintain the normal driving of the car on the road. The suspension is the general term for all the force transmission connection devices between the frame (or load-bearing body) and the axle (or wheel) of the car. Its function is to transmit the force and torque acting between the wheel and the frame, and to buffer the impact force transmitted to the frame or body by the uneven road surface, reduce the vibration caused by it, and ensure that the car can drive smoothly.

[0043] In the related technology, suspension can be divided into passive suspension, active suspension and semi-active suspension according to the control mode. Passive suspension has a simple structure, low cost, easy manufacturing and maintenance, but the passive suspension has poor comfort, especially on bumpy roads. Active suspension can automatically adjust the stiffness and damping properties according to road conditions and driving conditions to improve driving comfort and safety; semi-active suspension has a certain adaptive adjustment ability. However, the manufacturing cost of active suspension and semi-active suspension is high, the structure and control are complex, the energy consumption is large, and the weight of the vehicle will increase.

[0044] Based on this, an embodiment of the present application provides a vehicle suspension to improve the aforementioned technical problems existing in the existing suspension.

[0045] like Figure 1 As shown, an automobile suspension provided by an embodiment of the present application includes an elastic element 6, a shock absorbing mechanism and a support assembly. The shock absorbing mechanism includes a damping member 1 and a cavity 4, the damping member 1 and the cavity 4 are connected through a pipe 5, the damping member 1 and the cavity 4 are filled with a damping medium, and the damping medium flows between the damping member 1 and the cavity 4 through the pipe 5. A bracket 2 for connecting to the axle 3 is provided at one end of the damping member 1, and wheels 20 are installed at both ends of the axle 3. The cavity 4 is a closed container with a fixed volume. The elastic element 6 is connected to the bracket 2.

[0046] The support assembly includes a support rod 7, one end of which is hinged with the bracket 2, and the other end has a movable support part for supporting the vehicle frame 8. The middle part of the support rod 7 has a rotating member 9 for fixed installation at a preset position of the vehicle axle 3. The axial direction of the support rod 7 and the axial direction of the rotating member 9 are mutually perpendicularly arranged. The support rod 7 and the rotating member 9 are movably connected, and the support rod 7 can reciprocate relative to the rotating member 9 along the axial direction of the support rod 7. When installed on the vehicle, the top of the damping member 1 is hinged with the vehicle frame 8, the bottom of the damping member 1 is hinged with the bracket 2, the bracket 2 is fixedly connected with the vehicle axle 3, and the rotating member 8 is installed at a preset position of the vehicle axle 3.

[0047] Specifically, in a feasible implementation manner, as Figure 2 As shown, the damping member 1 includes a cylinder body 10 and a piston member for connecting to the automobile frame 8. The piston member includes a piston rod 11 for fixed connection to the frame 8 and a piston 12 arranged at one end of the piston rod 11. One end of the piston rod 11 is arranged in the cylinder body 10 along the axial direction of the cylinder body 10, and the other end passes out from the cylinder body 10 and is arranged to be slidably sealed with the cylinder body 10. For example, the piston rod 11 and the cylinder body 10 can be movably sealed by a sealing ring to maintain the inside of the cylinder body 10 in a closed state. When installed on the vehicle, the top end of the piston rod 11 is hinged to the frame 3.

[0048] The piston 12 is slidingly sealed and arranged in the cylinder body 10. The piston 12 divides the interior of the cylinder body 10 into a first inner cavity 13 and a second inner cavity 14 which are isolated from each other. The first inner cavity 13 and the second inner cavity 14 are both connected to the cavity 4 through the corresponding pipes 5. It can be understood that the first inner cavity 13, the second inner cavity 14, the cavity 4 and the two pipes 5 are all filled with damping medium. When the volume ratio of the first inner cavity 13 and the second inner cavity 14 changes, the damping medium will flow between the damping element 1 and the cavity 4 through the pipe 5 to generate a damping force, convert the potential energy stored in the elastic element into heat energy and dissipate it, inhibit the elastic element 6 from rebounding, and enable the frame 8 to maintain a stable state.

[0049] The bracket 2 is mounted on the cylinder body 10 at the end opposite to the end through which the piston rod 11 passes, that is, the bracket 2 is hinged to the bottom of the cylinder body 10 .

[0050] The movable support portion includes a first bearing 15, which is rotatably mounted on the end of the support rod 7, and the axial direction of the first bearing 15 is perpendicular to the axial direction of the support rod 7. In an exemplary embodiment, the first bearing 15 can be rotatably mounted on the support rod 7 through a support shaft, and the axial direction of the support shaft is perpendicular to the axial direction of the support rod 7. For example, a mounting groove can be provided at the end of the support rod 7, and the first bearing 15 can be installed in the mounting groove, and the two ends of the support shaft are inserted into the groove walls on both sides of the mounting groove. When installed on the vehicle, the outer ring of the first bearing 15 contacts the bottom surface of the frame and can roll along the bottom surface of the frame to support the frame. Alternatively, the first bearing 15 can also be replaced with a roller.

[0051] It is understandable that the movable support part can also be implemented by other structural designs. For example, the movable support part can be formed by installing a rolling ball at the end of the support rod 7, and part of the spherical surface of the rolling ball is rotated and wrapped in the groove at the end of the support rod 7, and the exposed spherical surface of the rolling ball contacts the bottom surface of the frame, and the rolling ball can roll along the bottom surface of the frame.

[0052] In this embodiment, there is no specific limitation on the specific structure of the movable support portion. However, considering the convenience of maintenance, it is preferred that the movable support portion is formed by the first bearing 15 .

[0053] In an exemplary embodiment, Figure 3 As shown, the rotating member 9 includes a second bearing 16 and a connecting sleeve 17 fixedly sleeved on the outer ring of the second bearing 16, the connecting sleeve 17 has a sliding sleeve 18, and the support rod 7 is slidably inserted into the sliding sleeve 18. When installed on the vehicle, the inner ring of the second bearing 16 is fixedly mounted on the fixed shaft 21 at a preset position of the axle 3 by means of interference fit.

[0054] In an exemplary embodiment, the damping medium can be air, or liquid substances such as hydraulic oil can be used as the damping medium. When air is used as the damping medium, the air pressure in the cavity 4 is 10 bar-12.5 bar, which is approximately equivalent to 10 standard atmospheric pressures-12 standard atmospheric pressures. The volume of the cavity 4 is about 10L, and the cavity 4 can be installed on the vehicle frame. It is understood that the air pressure in the cavity 4 can be set according to the needs of different vehicles.

[0055] It is understandable that a general car has four wheels, and four suspensions need to be installed accordingly. The four suspensions have four damping members in total, and the four damping members share one cavity 4, which can save the bottom space of the car and reduce costs. At the same time, the damping coefficient of the gas flow can be adjusted by adjusting the structure of the pipeline 5. Specifically, the inner wall roughness, pipe diameter, pipe curvature and local structure (such as tees, elbows, etc.) of the pipeline 5 will affect the flow resistance and damping coefficient of the gas, thereby adjusting the damping coefficient of the entire shock absorbing mechanism.

[0056] Furthermore, when air is used as the damping medium, an air pump 19 can be connected to the cavity 4. The air pump 19 is used to inflate the cavity 4 to adjust the air pressure of the cavity 4, and different air pressures can be set as needed to meet different working conditions or user needs. For example, an air pressure sensor can be set in the cavity 4 to collect the air pressure in the cavity 4 in real time, so that the driver can grasp the air pressure information in the cavity 4 in time. An exhaust pipe can also be connected to the cavity 4, and a solenoid valve can be set on the exhaust pipe. The gas in the cavity 4 can be released by controlling the opening of the solenoid valve, thereby reducing the air pressure in the cavity 4.

[0057] In an exemplary embodiment, the elastic element 6 can be a coil spring, the bottom end of which abuts against the bracket 2, and the coil spring is sleeved on the cylinder 10 of the damping member 1. At the same time, a spring seat 22 can be fixedly arranged on the top of the piston rod 11, and the top end of the coil spring abuts against the lower surface of the spring seat 22. A washer can be arranged between the top end of the coil spring and the lower surface of the spring seat 22 to reduce abnormal noise and wear.

[0058] The working principle of the automobile suspension is further explained below.

[0059] refer to Figure 1 As shown, when the car enters a pothole while driving on the road, the bracket 2 will move downward with the wheel, and the coil spring will extend downward. The bracket 2 will also drive the cylinder 10 of the damping member 1 of the shock absorbing mechanism to extend downward, and at the same time, it will drive the outer ring of the second bearing 16 of the support rod 7 to rotate positively to an adaptive angle with the fixed shaft 21 as the center. The movable supporting part of the support rod 7 will move positively along the bottom of the frame and rise a certain distance to push the car frame up and push the car frame to maintain the original height position as much as possible, so that the up and down shaking amplitude of the car frame is very small and remains stable.

[0060] At the same time, since the cylinder body 10 moves downward relative to the piston 12, the volume of the first inner chamber 13 decreases and the volume of the second inner chamber 14 increases, and the upper and lower pressures are different. At this time, the first inner chamber 13 located at the top will exhaust air into the cavity 4 through the corresponding pipe 5, and the cavity 4 will also inflate the second inner chamber 14 located at the bottom through the corresponding pipe 5.

[0061] refer to Figure 2 As shown, when the car drives out of the pothole, the bracket 2 will move upward with the wheel to compress the coil spring. The coil spring is compressed to store potential energy. The bracket 2 will also drive the damping member 1 of the shock absorbing mechanism to shrink upward, and at the same time drive the outer ring of the second bearing 16 of the support rod 7 centered on the fixed shaft 21 to rotate in the opposite direction to an adaptive angle. The movable supporting part of the support rod 7 will move in the opposite direction along the bottom of the frame and drop a certain distance, so that the car frame can be kept at the original height as much as possible, so that the up and down shaking amplitude of the car frame is very small and remains stable.

[0062] When the car drives out of the pothole, the cylinder 10 moves upward relative to the piston 12, causing the volume of the first inner chamber 13 to increase and the volume of the second inner chamber 14 to decrease. The upper and lower pressures are different, and the second inner chamber 14 located below will exhaust air into the cavity 4 through the corresponding pipe 5. At the same time, the cavity 4 will also inflate the first inner chamber 13 located above through the corresponding pipe 5.

[0063] When the gas flows through the corresponding pipes 5 in the first inner cavity 13, the second inner cavity 14 and the cavity 4, a damping effect will be generated, and the vibration energy will be converted into heat energy and released, thereby reducing the vibration of the vehicle body, improving the driving smoothness, and suppressing the excessive bouncing and shaking of the vehicle body. By consuming the vibration energy, the shock absorbing mechanism can significantly reduce the noise and vibration from the road surface and improve the ride comfort.

[0064] In summary, when the automobile suspension provided by the present application is used and the automobile enters or exits a pothole on the road, the elastic element on the automobile suspension will extend or be compressed, which will synchronously drive the damping element of the shock absorbing mechanism to extend or compress, thereby synchronously driving the support rod to rotate forward or reversely around the rotating element at a corresponding angle, so that the movable support part of the support rod can form a stable support for the automobile frame, and try to keep the automobile frame at its original height position, thereby keeping the vehicle body stable.

[0065] At the same time, the elastic element absorbs vibration and stores energy during the elastic deformation process. The shock absorbing mechanism dissipates the potential energy stored in the elastic element through the damping force generated by the damping medium flowing between the damping element and the cavity, thereby suppressing the rebound of the elastic element and allowing the frame to maintain a stable state.

[0066] Based on the same inventive concept, corresponding to the suspension of any of the above embodiments, the present application also provides a car chassis, which includes the car suspension described in any of the above embodiments. Since the car chassis has the above car suspension, it also has the advantages and benefits brought by the above car suspension, and it also has a simple structure, low cost, easy manufacturing and maintenance, can better absorb the vibration during the driving of the vehicle, and form a stable support for the car frame, and has the advantage of good comfort.

[0067] Based on the automobile suspension provided in the above embodiments, the present application also provides a vehicle, which may be, for example, a fuel vehicle (such as a gasoline vehicle, a diesel vehicle, etc.), an electric vehicle (such as a pure electric vehicle, a fuel cell vehicle) or a hybrid electric vehicle. The vehicle includes a chassis, wherein the chassis includes an axle, a frame and a suspension, and the suspension is connected between the frame and the axle, and the suspension is the automobile suspension described in any of the above embodiments.

[0068] The vehicle provided in this embodiment adopts the automobile suspension described in any of the above embodiments. When the automobile enters or exits a pothole on the road, the elastic element on the automobile suspension will extend or be compressed, which will synchronously drive the damping member of the shock absorbing mechanism to extend or compress, thereby synchronously driving the support rod to rotate forward or reverse around the rotating member by a corresponding angle, so that the movable support part of the support rod can form a stable support for the automobile frame, and try to keep the automobile frame at the original height position, thereby keeping the vehicle body stable.

[0069] At the same time, the elastic element absorbs vibration and stores energy during the elastic deformation process. The shock absorbing mechanism dissipates the potential energy stored in the elastic element through the damping force generated by the damping medium flowing between the damping element and the cavity, thereby suppressing the rebound of the elastic element and allowing the frame to maintain a stable state.

[0070] Finally, it should be noted that the various technical features of the technical solution of the present application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0071] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0072] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application.

Claims

1. A vehicle suspension, comprising an elastic element (6) and a shock absorbing mechanism, characterized in that: Also included is a support assembly; The shock absorbing mechanism comprises: A damping member (1), wherein one end of the damping member (1) is provided with a bracket (2) for connecting to an axle (3); a cavity (4), the cavity (4) being a closed container with a fixed volume, the cavity (4) being connected to the damping element (1) via a pipe (5); and A damping medium, the damping medium flows between the damping element (1) and the cavity (4) through the pipeline (5); The elastic element (6) is connected to the bracket (2); The support assembly comprises a support rod (7), one end of the support rod (7) is hinged to the bracket (2), and the other end has a movable support portion for supporting the vehicle frame (8), the middle part of the support rod (7) has a rotating member (9) for fixed installation at a preset position of the vehicle axle (3), the axial direction of the support rod (7) and the axial direction of the rotating member (9) are arranged perpendicular to each other, the support rod (7) and the rotating member (9) are movably connected, and the support rod (7) can reciprocate along the axial direction of the support rod (7) relative to the rotating member (9).

2. A vehicle suspension according to claim 1, characterized in that: The damping member (1) comprises a cylinder body (10) and a piston member for connecting to a vehicle frame (8), the piston member comprising a piston rod (11) for fixedly connecting to the vehicle frame (8) and a piston (12) arranged at one end of the piston rod (11), one end of the piston rod (11) being arranged in the cylinder body (10) along the axial direction of the cylinder body (10), and the other end of the piston rod (11) passing outward from the cylinder body (10) and being arranged in a sliding seal with the cylinder body (10); The piston (12) is arranged in a sliding seal in the cylinder body (10), and the piston (12) divides the interior of the cylinder body (10) into a first inner cavity (13) and a second inner cavity (14) which are isolated from each other, and the first inner cavity (13) and the second inner cavity (14) are both connected to the cavity (4) through the pipeline (5); The bracket (2) is mounted on the cylinder body (10) at an end opposite to the end through which the piston rod (11) passes.

3. The automobile suspension according to claim 1, characterized in that: The movable support portion comprises a first bearing (15), the first bearing (15) being rotatably mounted on the end of the support rod (7), and the axial direction of the first bearing (15) being arranged perpendicular to the axial direction of the support rod (7).

4. The automobile suspension according to claim 1, characterized in that: The rotating member (9) comprises a second bearing (16) and a connecting sleeve (17) fixedly mounted on the outer ring of the second bearing (16); the connecting sleeve (17) has a sliding sleeve (18), and the support rod (7) is slidably mounted in the sliding sleeve (18).

5. The automobile suspension according to claim 1, characterized in that: The damping medium is air.

6. A vehicle suspension according to claim 5, characterized in that: The cavity (4) is also connected to an air pump (19).

7. A vehicle suspension as claimed in claim 5, characterized in that: The air pressure in the cavity (4) is 10 bar-12.5 bar.

8. The automobile suspension according to claim 1, characterized in that: The elastic element (6) is a coil spring, one end of which abuts against the bracket (2), and the coil spring is sleeved on the damping member (1).

9. An automobile chassis, characterized in that: The invention comprises a vehicle suspension as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the automobile chassis as claimed in claim 9.

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