Vehicle wheel suspension device and vehicle

Abstract

The present invention provides a vehicle wheel suspension device, which includes a fixed shaft, a rotating member and a driving member, wherein the rotating member is rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel of the vehicle; the driving member is connected to the other end of the rotating member to provide a driving force to cause the rotating member to rotate around the fixed shaft, thereby driving the wheel to rise and fall. At the same time, the present invention also provides a vehicle, which adopts the vehicle wheel suspension device. Compared with the prior art, the vehicle wheel suspension device and the vehicle of the present invention can adjust the height of the wheel, thereby adjusting the overall height of the vehicle, and ensuring the normal passage of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to a vehicle wheel lifting mechanism and a vehicle. Background Art

[0002] The vehicle wheel suspension device refers to a force transmission support structure between the vehicle body and the vehicle wheel body. Its main function is to support the vehicle body, buffer the impact force transmitted to the frame or body by uneven roads, and attenuate the vibration caused by it, so as to improve the riding feeling and ensure that the vehicle can run smoothly. Different suspension devices will give drivers different driving feelings. The suspension device determines the driving stability, riding comfort and safety of the vehicle.

[0003] However, the vehicle wheel suspension device in the prior art cannot adjust the height of the wheel, resulting in that vehicles cannot pass through some road sections with height restrictions, affecting the normal passage of vehicles. Summary of the invention

[0004] Aiming at the technical problem that the vehicle wheel suspension device in the prior art cannot adjust the height of the wheel body, which affects the normal passage of vehicles on the road height restriction section, the present invention provides a vehicle wheel suspension device which can adjust the height of the wheel body, thereby ensuring the normal passage of vehicles on the road height restriction section.

[0005] A vehicle wheel suspension device, comprising:

[0006] Fixed axis;

[0007] A rotating member, rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel body of the vehicle;

[0008] The driving member is connected to the other end of the rotating member and is used for providing driving force to cause the rotating member to rotate around the fixed axis, thereby driving the wheel body to rise and fall.

[0009] Preferably, the driving member comprises:

[0010] Fixed seat;

[0011] A driving unit, mounted on the fixing seat;

[0012] The moving component is installed on the fixing seat and connected with the rotating member, and the output end of the driving unit is connected with the moving component. The driving unit is used to drive the moving component to move and cause the rotating member to rotate.

[0013] Preferably, the moving component comprises:

[0014] A protective sleeve, mounted on the fixing seat and connected to the output end of the driving unit;

[0015] A coil spring, one end of which is installed in the protective sleeve and connected to the protective sleeve, and the other end of which extends out of the protective sleeve;

[0016] The transmission module is connected to the other end of the coil spring and to the rotating member.

[0017] Preferably, the transmission module comprises:

[0018] A transmission pull rod, one end of which is connected to the other end of the coil spring, and the other end of which extends toward the protective sleeve and the fixing seat and passes through the protective sleeve and the fixing seat;

[0019] A transmission connecting rod has one end connected to the other end of the transmission pull rod, and the other end connected to the other end of the rotating member.

[0020] Preferably, the transmission pull rod comprises:

[0021] There are two pull rod bodies, and the two pull rod bodies are spaced apart from each other;

[0022] A baffle, connected to the two pull rod bodies respectively, and connected to the coil spring;

[0023] A connecting block, connected to the two pull rod bodies respectively;

[0024] The transmission connecting rod has one end hinged to the connecting block and the other end hinged to the rotating member.

[0025] Preferably, the wheel body, the fixed shaft, the rotating member and the moving assembly are respectively provided in two, and each of the wheel bodies is correspondingly connected to one of the rotating members, and each of the rotating members is correspondingly connected to one of the moving assembly and the fixed shaft.

[0026] Preferably, two opposite sides of the fixing seat are respectively provided with cylindrical holes, the cylindrical holes match the moving components, and each of the cylindrical holes is correspondingly installed with a moving component.

[0027] Preferably, the driving unit is a bidirectional hydraulic cylinder, and the two piston rods of the bidirectional hydraulic cylinder are respectively hinged to the two moving components.

[0028] Preferably, the wheel body comprises:

[0029] There are two road wheels, and the two road wheels are arranged relatively spaced apart;

[0030] A bridge frame, both ends of which are respectively connected to the two road wheels;

[0031] One end of the rotating member is hinged to the middle part of the bridge frame.

[0032] Meanwhile, the present invention also provides a vehicle, which comprises:

[0033] Vehicle body;

[0034] A wheel body, mounted on the bottom of the vehicle body;

[0035] As in any one of the above-mentioned vehicle wheel suspension devices, the fixed shaft is mounted on the vehicle body.

[0036] Compared with the prior art, the vehicle wheel suspension device provided by the present invention includes the fixed shaft, the rotating member and the driving member, wherein the rotating member is rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel of the vehicle; the driving member is connected to the other end of the rotating member to provide a driving force to cause the rotating member to rotate around the fixed shaft, thereby driving the wheel to rise and fall. Thus, the height of the wheel can be adjusted through the vehicle wheel suspension device, and then the height of the wheel relative to the vehicle can be adjusted in the road height-restricted section, the overall height of the vehicle can be lowered, and the vehicle can smoothly pass through the road height-restricted section, thereby ensuring the normal passage of the vehicle.

[0037] Correspondingly, the vehicle provided by the present invention adopts the vehicle wheel suspension device so as to adjust the overall height and ensure the normal passage of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a vehicle wheel suspension device provided by an embodiment;

[0040] Figure 2 For along Figure 1 A schematic cross-sectional structure diagram of the AA portion of the structure shown;

[0041] Figure 3 for Figure 1 A schematic diagram of the structure of the driving member and the rotating member shown;

[0042] Figure 4 For along Figure 3 A schematic cross-sectional view of the structure of the BB portion shown;

[0043] Figure 5 For along Figure 3 A schematic diagram of the cross-sectional structure along the C direction is shown;

[0044] Figure 6 for Figure 1 The schematic diagram of the structure of the vehicle wheel suspension device in different states is shown. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0048] The present invention provides a vehicle wheel suspension device, which includes a fixed shaft, a rotating member and a driving member, wherein the rotating member is rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel of the vehicle; the driving member is connected to the other end of the rotating member to provide a driving force to cause the rotating member to rotate around the fixed shaft, thereby driving the wheel to rise and fall. The vehicle wheel suspension device can adjust the height of the wheel, thereby adjusting the overall height of the vehicle, and ensuring the normal passage of the vehicle.

[0049] Please refer to Figures 1 to 6 The present embodiment provides a vehicle wheel suspension device 100, which is used to adjust the height of the wheel in the vehicle, thereby adjusting the overall height of the vehicle, so that the vehicle can pass through the height-restricted road section. In the present embodiment, the vehicle is specifically a tracked vehicle, that is, a track is wound around the outside of the wheel, and the rotation of the wheel drives the movement of the track, thereby moving the vehicle.

[0050] The vehicle wheel suspension device 100 includes a fixed shaft 10, a rotating member 20 and a driving member 30. The rotating member 20 is rotatably connected to the fixed shaft 10, and one end of the rotating member 20 is connected to the wheel 200 of the vehicle. The driving member 30 is connected to the other end of the rotating member 20, and the driving member 30 is used to provide a driving force to cause the rotating member 30 to rotate around the fixed shaft 10 to drive the wheel 200 to rise and fall. That is, the driving member 30 is used to provide a driving force for the rotating member 20, so that the rotating member 20 rotates around the fixed shaft 10, so that the wheel 200 is raised or lowered by the rotation of the rotating member 20, so as to adjust the height position of the wheel 200, and further adjust the overall height of the vehicle.

[0051] Preferably, the driving member 30 includes a fixed seat 40, a driving unit 50 and a moving assembly 60, and the driving unit 50 is installed on the fixed seat 40. The moving assembly 60 is installed on the fixed seat 40 and connected to the rotating member 20, and the output end of the driving unit 50 is connected to the moving assembly 60, and the driving unit 50 is used to drive the moving assembly 60 to move, so as to cause the rotating member 20 to rotate. That is, the driving unit 50 is used to provide a driving force to drive the moving assembly 60 to move, thereby driving the rotating member 20 to rotate through the moving assembly 60 to achieve the adjustment of the wheel body 200. Specifically, the fixed seat 40 is installed and fixed on the body of the vehicle. The driving unit 50 and the moving assembly 60 are installed through the fixed seat 40, which effectively ensures the stability of the connection, ensures the driving of the rotating member 20, and ensures the stability of the operation of the vehicle wheel suspension device 100.

[0052] Preferably, the moving assembly 60 includes a protective sleeve 61, a coil spring 62 and a transmission module 63, wherein the protective sleeve 61 is installed on the fixing seat 40 and connected to the output end of the driving unit 50, one end of the coil spring 62 is installed in the protective sleeve 61 and connected to the protective sleeve 61, and the other end of the coil spring 62 extends out of the protective sleeve 61. The transmission module 63 is connected to the other end of the coil spring 62 and connected to the rotating member 20. That is, the driving force provided by the driving unit 50 is transmitted to the transmission module 63 through the coil spring 62, thereby driving the rotating member 20 to rotate through the transmission module 63. It can be understood that by providing the coil spring 62, effective buffering can be performed after the force is applied, effectively preventing the wheel body 200 from being damaged by the components in the vehicle wheel suspension device 100 or the wheel body 200 after being subjected to external force or when the vehicle wheel suspension device 100 is driven.

[0053] Preferably, the transmission module 63 includes a transmission rod 64 and a transmission connecting rod 65, one end of the transmission rod 64 is connected to the other end of the coil spring 62, and the other end of the transmission rod 64 extends toward the protective sleeve 61 and the fixing seat 40 and passes through the protective sleeve 61 and the fixing seat 40. One end of the transmission connecting rod 65 is connected to the other end of the transmission rod 64, and the other end of the transmission connecting rod 65 is connected to the other end of the rotating member 20. That is, the transmission rod 64 passes through the protective sleeve 61 and the fixing seat 40 and is connected to the transmission connecting rod 65, and the rotating member 20 is driven by the transmission connecting rod 65.

[0054] Preferably, the transmission rod 64 includes a rod body 641, a baffle 643 and a connecting block 644. Two rod bodies 642 are provided, and the two rod bodies 642 are spaced apart from each other. The baffle 643 is respectively connected to the two rod bodies 641 and the coil spring 62, and the connecting block 644 is respectively connected to the two rod bodies 641. One end of the transmission connecting rod 65 is hinged to the connecting block 644, and the other end of the transmission connecting rod 65 is hinged to the rotating member 20. The two rod bodies 641 can make the force more balanced during the transmission process, and can also effectively increase the service life and ensure the driving stability. And the baffle 643 and the connecting block 644 can further ensure the connection stability.

[0055] Preferably, the wheel body 200, the fixed shaft 10, the rotating member 20 and the moving assembly 60 are respectively provided with two, and each wheel body 200 is correspondingly connected with one rotating member 20, and each rotating member 20 is correspondingly connected with one moving assembly 60 and the fixed shaft 10. The rotating member 20 is divided into a first rotating member 21 and a second rotating member 22, the first rotating member 21 is connected to one wheel body 200, and the second rotating member 22 is connected to another wheel body 200. The moving assembly 60 is divided into a first moving assembly 601 and a second moving assembly 601. In this embodiment, the first moving assembly 601 is located on the left side to drive the first rotating member 21 on the right side to rotate, thereby driving the wheel body 200 on the right side to rise and fall; the second moving assembly 601 is located on the right side to drive the second rotating member 22 on the left side to rotate, thereby driving the wheel body 200 on the left side to rise and fall.

[0056] Specifically, in this embodiment, the protective sleeve 61 is divided into a first protective sleeve 611 located on the left and a second protective sleeve 612 located on the right, the coil spring 62 is divided into a first coil spring 621 connected to the first protective sleeve 611 and a second coil spring 622 connected to the second protective sleeve 612. The pull rod body 641 is divided into a first pull rod body 6411 connected to the first coil spring 621 and a second pull rod body 6412 connected to the second coil spring 622, the baffle 643 is divided into a first baffle 6431 located on the left and a second baffle 6432 located on the right, the connecting block 644 is divided into a first connecting block 6441 located on the right and a second connecting block 6442 located on the left, and the transmission connecting rod 65 includes a first transmission connecting rod 651 located on the right and a second transmission connecting rod 652 located on the left. The two first pull rod bodies 6411 are arranged at intervals from each other in the vertical direction, and the two second pull rod bodies 6412 are arranged at intervals from each other in the horizontal direction, that is, the four pull rod bodies 641 are arranged in a cross shape, and correspondingly, the fixing seat 40 and the corresponding area of ​​the sleeve tube 61 are provided with a cross hole, and the four pull rod bodies 641 are avoided through the cross hole. It can be understood that by distributing the four pull rod bodies 641 in a cross shape, it is possible to avoid mutual interference during the driving process and ensure the stability of the driving, while also saving the overall layout space as much as possible. The left side of the first transmission pull rod 6411 is fixed by two first nuts 66, thereby limiting the position of the first baffle 6431. The right side of the second transmission pull rod 6412 is fixed by two second nuts 67, thereby limiting the position of the second baffle 6432.

[0057] Preferably, two opposite sides of the fixing seat 40 are provided with tube holes 41, respectively, and the tube holes 41 match the moving assembly 60, and each of the tube holes 41 is correspondingly installed with a moving assembly 60. The matching of the tube holes 41 with the moving assembly 60 means that the shape and size of the tube holes 41 match the moving assembly 60, so that the moving assembly 60 can be limited by the inner wall of the tube holes 41, ensuring that the moving assembly 60 can move in the desired direction. In this embodiment, the shape and size of the tube holes 41 match the sheath tube 61.

[0058] Preferably, the driving unit 50 is a bidirectional hydraulic cylinder, and the two piston rods of the bidirectional hydraulic cylinder are respectively hinged to the two moving assemblies 60. In the present embodiment, the two piston rods of the bidirectional hydraulic cylinder are respectively hinged to the two protective sleeves 61. Thus, the consistency of the driving on both sides is ensured by the bidirectional hydraulic cylinder drive, and the adjustment of the overall lifting height is guaranteed. More preferably, two driving units 50 are provided, and the two driving units 50 are spaced apart from each other in the vertical direction, and the two driving units 50 are respectively hinged to the moving assemblies 60, thereby further ensuring the driving force. Specifically, in the present embodiment, the driving unit 50 is hingedly mounted on the hinge shaft 42 of the fixed seat 40.

[0059] Preferably, the wheel body 200 includes a road wheel 210 and a bridge frame 220. Two road wheels 210 are provided, and the two road wheels 210 are arranged relatively spaced apart. Both ends of the bridge frame 220 are respectively connected to the two road wheels 210. One end of the rotating member 20 is hinged to the middle of the bridge frame 220, thereby effectively ensuring the balance of the two road wheels 210 during the lifting process.

[0060] At the same time, this embodiment also provides a vehicle, which includes a vehicle body, the wheel body 200 and the vehicle wheel body suspension device 100, the wheel body 200 is installed at the bottom of the vehicle body, and a track 300 is installed on the outside of the wheel body 200, and the fixed shaft 10 is installed on the vehicle body.

[0061] The vehicle wheel suspension device 100 provided in this embodiment is a track suspension device placed flat on one side. Two symmetrical sleeves 61 are respectively arranged between the two horizontal coil springs 62 and the fixing seat 40. Each sleeve 61 is pushed by two hydraulic cylinders. As the hydraulic rod contracts or extends, the sleeve 61 and the horizontal coil spring 62 are pushed at the same time, so that the transmission rod 64 contracts or extends, and the swing angles of the two rotating parts 20 change, so that the heights of the two balancing suspensions are raised and lowered at the same time, thereby realizing the lifting function of the suspension device.

[0062] Specifically, the working principle of the vehicle wheel suspension device 100 is as follows: the drive unit 50 works simultaneously in two opposite directions, and both piston rods are in the maximum extended state; the piston rod on the left maintains a thrust to the left, and pushes the first sleeve tube 611 and the first coil spring 621 in the tube to the left to the maximum distance through the hinge axis hinged to the first sleeve tube 611, and the first coil spring 621 drives the first baffle plate 6431, the two first nuts 66, the two first pull rod bodies 6411, the first connecting block 6441, and the first transmission connecting rod 651 to the left to the maximum distance, and the first transmission connecting rod 651 drives the first rotating shaft to rotate Part 21 is in the highest adjustment position of the liftable suspension structure; at the same time, the piston rod on the right side also maintains a rightward thrust, and pushes the second sleeve tube 612 and the second coil spring 622 in the tube to the right to the maximum distance through the hinge shaft hinged to the second sleeve tube 612, and the second coil spring 622 drives the second baffle plate 6432, the two second nuts 67, the two second pull rod bodies 6412, the second connecting block 6442, and the second transmission connecting rod 652 to the right to the maximum distance, and the second transmission connecting rod 652 makes the second rotating part 22 also in the highest adjustment position of the liftable suspension structure through the hinge shaft; at this time, the state of the crawler 300 is Figure 6 In the track profile shown in a, the tracked vehicle chassis is at the highest position with the ground.

[0063] Similarly, when the vehicle wheel suspension device 100 is moved from the raised state to the lowered state, the vehicle wheel suspension device 100 is assisted by the gravity of the tracked vehicle chassis, and the vehicle wheel suspension device 100 is actively reversed in the opposite direction to the raised state. The piston rods of the drive unit 50 in both reverse directions are retracted from the maximum extension state to the minimum extension state. The piston rod on the left side pulls the first protective sleeve 611 into the cylindrical hole 41 on the left side of the fixing seat 40 through the hinge shaft, and the first coil spring 621 also retracts to the right along with the first protective sleeve 611, and causes the two first nuts 66, the two first pull rod bodies 6411, the first connecting block 6441, and the first transmission link 651 to move to the right. The first transmission link 651 causes the first rotating member 21 to rotate clockwise around the fixed shaft 10 on the right side through the hinge shaft and generates a rightward pulling force. After the pulling force is transmitted to the first coil spring 621 through the first transmission link 651, the two first pull rod bodies 6411, the first baffle 6431, etc., the first coil spring 621 is compressed. When the pressure and elastic force reach a balance, the first rotating member 21 rotates clockwise to reach the maximum adjustment angle. At this time, the state of the track 300 is Figure 6The track profile shown in b shows that the chassis of the tracked vehicle is at the lowest position with the ground. The piston rod on the right side pulls the second sleeve tube 612 into the tube hole 41 on the right side of the fixing seat 40 through the hinge shaft, and the second coil spring 622 also retracts to the left following the second sleeve tube 612, and causes the two second nuts 67, the two second tie rod bodies 6412, the second connecting block 6442, and the second transmission link 652 to move to the left. The second transmission link 652 causes the rotating part 22 to rotate counterclockwise around the fixed shaft 10 on the left side through the hinge shaft and generates a pulling force to the left. After the pulling force is transmitted to the second coil spring 622 through the second transmission link 652, the two second tie rod bodies 6412, the second baffle 6432, etc., the second coil spring 622 is compressed. When the pressure and elastic force reach a balance, the second rotating part 22 rotates counterclockwise to reach the maximum adjustment angle. At this time, the state of the track 300 is Figure 6 In the track profile shown in b, the track vehicle chassis is at the lowest position with the ground.

[0064] Compared with the prior art, the vehicle wheel suspension device provided by the present invention includes the fixed shaft, the rotating member and the driving member, wherein the rotating member is rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel of the vehicle; the driving member is connected to the other end of the rotating member to provide a driving force to cause the rotating member to rotate around the fixed shaft, thereby driving the wheel to rise and fall. Thus, the height of the wheel can be adjusted through the vehicle wheel suspension device, and then the height of the wheel relative to the vehicle can be adjusted in the road height-restricted section, the overall height of the vehicle can be lowered, and the vehicle can smoothly pass through the road height-restricted section, thereby ensuring the normal passage of the vehicle.

[0065] Correspondingly, the vehicle provided by the present invention adopts the vehicle wheel suspension device so as to adjust the overall height and ensure the normal passage of the vehicle.

[0066] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. A vehicle wheel suspension device, characterized in that: include: Fixed axis; A rotating member, rotatably connected to the fixed shaft, and one end of the rotating member is connected to the wheel body of the vehicle; A driving member connected to the other end of the rotating member to provide a driving force to cause the rotating member to rotate around the fixed axis, thereby driving the wheel body to rise and fall; The driving member comprises: Fixed seat; A driving unit, mounted on the fixing seat; A moving assembly is installed on the fixed seat and connected to the rotating member, and the output end of the driving unit is connected to the moving assembly, and the driving unit is used to drive the moving assembly to move and cause the rotating member to rotate; The mobile assembly comprises: A protective sleeve, mounted on the fixing seat and connected to the output end of the driving unit; A coil spring, one end of which is installed in the protective sleeve and connected to the protective sleeve, and the other end of which extends out of the protective sleeve; A transmission module connected to the other end of the coil spring and to the rotating member; The transmission module comprises: A transmission pull rod, one end of which is connected to the other end of the coil spring, and the other end of which extends toward the protective sleeve and the fixing seat and passes through the protective sleeve and the fixing seat; A transmission connecting rod, one end of which is connected to the other end of the transmission pull rod, and the other end of which is connected to the other end of the rotating member; The transmission pull rod comprises: There are two pull rod bodies, and the two pull rod bodies are spaced apart from each other; A baffle, connected to the two pull rod bodies respectively, and connected to the coil spring; A connecting block, connected to the two pull rod bodies respectively; The transmission connecting rod has one end hinged to the connecting block and the other end hinged to the rotating member; The wheel body, the fixed shaft, the rotating member and the moving assembly are respectively provided with two, and each wheel body is correspondingly connected to one rotating member, and each rotating member is correspondingly connected to one moving assembly and the fixed shaft; The protective sleeve tube is divided into a first protective sleeve tube located on the left side and a second protective sleeve tube located on the right side, the coil spring is divided into a first coil spring connected to the first protective sleeve tube and a second coil spring connected to the second protective sleeve tube, the pull rod body is divided into a first pull rod body connected to the first coil spring and a second pull rod body connected to the second coil spring, the two first pull rod bodies are spaced apart from each other in the vertical direction, and the two second pull rod bodies are spaced apart from each other in the horizontal direction.

2. The vehicle wheel suspension device according to claim 1, characterized in that: The fixing seat is provided with cylindrical holes on two opposite sides respectively, the cylindrical holes match the moving components, and each of the cylindrical holes is correspondingly installed with a moving component.

3. The vehicle wheel suspension device according to claim 2, characterized in that: The driving unit is a bidirectional hydraulic cylinder, and two piston rods of the bidirectional hydraulic cylinder are respectively hinged to the two moving components.

4. The vehicle wheel suspension device according to any one of claims 1 to 3, characterized in that: The wheel body comprises: There are two road wheels, and the two road wheels are arranged relatively spaced apart; A bridge frame, both ends of which are respectively connected to the two road wheels; One end of the rotating member is hinged to the middle part of the bridge frame.

5. A vehicle, characterized in that: include: Vehicle body; A wheel body, mounted on the bottom of the vehicle body; The vehicle wheel suspension device according to any one of claims 1 to 4, wherein the fixed shaft is mounted on the vehicle body.

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