Shock absorber, suspension assembly and vehicle with same

Abstract

The utility model discloses a shock absorber, a suspension assembly and a vehicle with the suspension assembly. The shock absorber comprises an upper support and a lower support, one end of the shock absorber main body is suitable for being connected with a wheel, and the other end of the shock absorber main body is suitable for being connected with a vehicle body through the upper support; and the height adjusting assembly is coaxially arranged on the shock absorber main body, and the height adjusting assembly is used for adjusting the position of the upper support relative to the shock absorber main body in the axial direction of the shock absorber main body. According to the shock absorber, the shock absorber body and the height adjusting assembly are arranged, and the height adjusting assembly is coaxially arranged on the shock absorber body and used for adjusting the position of the upper support relative to the shock absorber body, so that the performance of a vehicle can be well improved, and the shock absorber is more flexible and convenient to install and arrange.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a shock absorber, a suspension assembly and a vehicle having the same. Background Art

[0002] With the development of the vehicle industry, the comfort and driving performance of vehicles have been greatly improved. At present, the shock absorbers in vehicles not only play the role of buffering and vibration reduction, but also have the function of adjusting the height of the vehicle body to make the vehicle passability better. In the relevant technology, the shock absorbers with height adjustment function are often large in size and occupy a large space, making the layout of the shock absorbers inconvenient. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a shock absorber, which can make the overall structure of the shock absorber more compact and small while meeting the height adjustment requirements, and make the arrangement of the shock absorber more convenient and flexible.

[0004] The utility model also provides a suspension assembly with the shock absorber.

[0005] The utility model also provides a vehicle with the suspension assembly.

[0006] The shock absorber according to the first aspect of the utility model comprises: an upper support; a shock absorber body, one end of which is suitable for connection with a wheel, and the other end of which is suitable for connection with a vehicle body through the upper support; a height adjustment component, which is coaxially arranged on the shock absorber body and is used to adjust the position of the upper support relative to the shock absorber body in the axial direction of the shock absorber body.

[0007] According to the shock absorber of the utility model, by providing a shock absorber body and a height adjustment component, the height adjustment component is coaxially arranged on the shock absorber body and is used to adjust the position of the upper support relative to the shock absorber body, which can greatly improve the performance of the vehicle and make the shock absorber more flexible and convenient during installation and arrangement.

[0008] In some embodiments of the utility model, the height adjustment assembly includes a drive motor and a linear motion component, the drive motor can drive the linear motion component to move along the axial direction of the shock absorber body, the shock absorber body includes a shock-absorbing elastic member, one end of the shock-absorbing elastic member is connected to the upper support, and the other end of the shock-absorbing elastic member is connected to the linear motion component.

[0009] In one embodiment of the present utility model, the driving motor is a hollow motor, and the driving motor and the linear motion component are both sleeved on the outer peripheral side of the shock absorber body.

[0010] In some examples of the present invention, the linear motion component includes: a rotating member, which is rotatably mounted on the outer peripheral side of the shock absorber body, one end of the rotating member is connected to the rotor of the driving motor, and the driving motor is suitable for driving the rotating member to rotate; a movable member, which is mounted on the rotating member and connected to the rotating member through a spiral pair, and the movable member is connected to the other end of the shock-absorbing elastic member.

[0011] In an example of the present invention, the movable part is threadedly connected to the rotating part; or, a ball is provided between the movable part and the rotating part, and the movable part and the rotating part are transmission-connected via the ball screw pair.

[0012] In an example of the present utility model, the movable member is provided with a first support seat, and the first support seat is connected to the other end of the vibration-damping elastic member.

[0013] In an example of the present utility model, the height adjustment assembly further includes a connecting piece, the driving motor includes a shell, and the shell is connected to the shock absorber body through the connecting piece.

[0014] In some specific embodiments of the present utility model, the connecting member includes: a connecting cylinder portion and a connecting plate portion, the connecting cylinder portion is sleeved on the outer peripheral side of the shock absorber body and connected to the shock absorber body, the connecting plate portion is connected to one axial side of the connecting cylinder portion and extends radially outward along the connecting cylinder portion, and the shell is connected to the connecting plate portion.

[0015] In some examples of the present invention, the linear motion component and the driving motor are arranged along the axial direction of the shock absorber body, and the driving motor is located on a side of the linear motion component away from the upper support.

[0016] In some examples of the present invention, the shock absorber body includes a piston rod and a shock absorber cylinder sleeved on the outer periphery of the piston rod, the piston rod and the shock absorber cylinder can move relative to each other along the axial direction of the shock absorber body, and the piston rod is connected to the upper support.

[0017] In one example of the present utility model, the shock-absorbing cylinder includes: an outer cylinder and an inner cylinder, the inner cylinder is sleeved on the outer circumference of the piston rod, the outer cylinder is sleeved on the outer circumference of the inner cylinder and is fixed relative to the inner cylinder, an overflow chamber is jointly defined between the outer cylinder and the inner cylinder, an active chamber is formed on the inner side of the inner cylinder, one end of the piston rod is connected to the upper support, the other end of the piston rod extends into the active chamber and is provided with a piston, a flow valve is provided between the active chamber and the overflow chamber, and the flow valve is used to control the connection or isolation between the active chamber and the overflow chamber.

[0018] In some specific embodiments of the present utility model, the shock absorber further includes a first buffer member, which is fixed to the upper support and located between the shock absorber body and the upper support, and the first buffer member is sleeved on the outer periphery of the piston rod.

[0019] In a specific embodiment of the present invention, a support ring is provided on the first buffer component, and the support ring is sleeved and fixed on the outer peripheral side of the first buffer component.

[0020] The suspension assembly according to the second aspect of the utility model comprises the shock absorber according to the first aspect of the utility model.

[0021] According to the suspension assembly of the utility model, by setting the shock absorber of the first aspect mentioned above, the shock absorber is provided with a shock absorber body and a height adjustment component, the height adjustment component is coaxially arranged on the shock absorber body and is used to adjust the position of the upper support relative to the shock absorber body, which can greatly improve the performance of the vehicle and make the shock absorber more flexible and convenient during installation and arrangement.

[0022] A vehicle according to a third aspect of the utility model comprises a suspension assembly according to the second aspect of the utility model.

[0023] According to the vehicle of the utility model, by setting the suspension assembly of the second aspect mentioned above, the suspension assembly is provided with a shock absorber body and a height adjustment component, the height adjustment component is coaxially arranged on the shock absorber body and is used to adjust the position of the upper support relative to the shock absorber body, which can greatly improve the performance of the vehicle and make the shock absorber more flexible and convenient during installation and arrangement.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a shock absorber according to an embodiment of the utility model;

[0026] Figure 2 is a cross-sectional view of a shock absorber according to an embodiment of the utility model;

[0027] Figure 3 It is a cross-sectional view of a damping cylinder, a piston rod, a piston and a height adjustment assembly according to an embodiment of the utility model;

[0028] Figure 4 It is a cross-sectional view of a shock absorber according to another embodiment of the utility model.

[0029] Reference numerals:

[0030] 10. Upper support;

[0031] 20. shock absorber body; 201. active chamber; 202. overflow chamber;

[0032] 21. piston rod; 22. vibration damping cylinder; 221. outer cylinder; 222. inner cylinder; 23. vibration damping elastic member; 24. piston;

[0033] 30. Heighten the components;

[0034] 31. driving motor; 311. housing; 312. stator; 313. rotor;

[0035] 32, linear motion component; 321, rotating component; 322, movable component; 3221, first support seat; 323, ball bearing; 324, connecting bearing; 325, first sealing ring; 326, second sealing ring;

[0036] 33. Connecting piece; 331. Connecting cylinder; 332. Connecting plate;

[0037] 41. Second support seat; 42. First buffer member; 43. Support ring; 44. Sealing member; 45. Limiting member;

[0038] 46. ​​second buffer member; 47. connecting bracket; 48. dust cover;

[0039] 100. Shock absorber. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] Reference below Figure 1-Figure 4 A shock absorber 100 according to an embodiment of a first aspect of the present invention is described.

[0042] like Figure 1-Figure 4 As shown, the shock absorber 100 according to the first embodiment of the utility model includes: an upper support 10, a shock absorber body 20 and a height adjustment component 30.

[0043] Specifically, one end of the shock absorber body 20 is suitable for connecting with the wheel, and the other end of the shock absorber body 20 is suitable for connecting with the vehicle body through the upper support 10; the height adjustment component 30 is coaxially arranged on the shock absorber body 20, in the axial direction of the shock absorber body 20 (such as Figure 1 The height adjustment assembly 30 is used to adjust the position of the upper support 10 relative to the shock absorber body 20.

[0044] In the shock absorber 100 of this embodiment, a shock absorber body 20 is provided. One end of the shock absorber body 20 is suitable for being connected to the wheel and the other end is suitable for being connected to the upper support 10. The upper support 10 is connected to the vehicle body, so that the shock absorber 100 can play the role of supporting the vehicle body and perform normal vibration reduction operations. The structure is simple and easy to use. In this embodiment, a height adjustment component 30 is also provided in the shock absorber 100. The height adjustment component 30 adjusts the relative position of the upper support 10 and the shock absorber body 20 in the axial direction of the shock absorber body 20, and can change the relative height between the vehicle body and the wheel, thereby realizing the height adjustment of the vehicle body, making the vehicle passability better, and better meeting the use needs of the driver and passengers.

[0045] In this embodiment, the height adjustment assembly 30 is coaxially arranged on the shock absorber body 20, so that the overall structure of the shock absorber 100 is more compact and small, thereby making the shock absorber 100 more flexible and convenient during installation and arrangement.

[0046] According to the shock absorber 100 of the embodiment of the utility model, by setting the shock absorber body 20 and the height adjustment component 30, the height adjustment component 30 is coaxially arranged on the shock absorber body 20 and is used to adjust the position of the upper support 10 relative to the shock absorber body 20, which can greatly improve the performance of the vehicle and make the shock absorber 100 more flexible and convenient during installation and arrangement.

[0047] In some embodiments of the present invention, Figure 2 As shown, the height adjustment component 30 may include a driving motor 31 and a linear motion component 32, wherein the driving motor 31 is in transmission connection with the linear motion component 32 to drive the linear motion component 32 to move along the axial direction of the shock absorber body 20, and the shock absorber body 20 includes a shock absorbing elastic member 23, wherein one end of the shock absorbing elastic member 23 is connected to the upper support 10, and the other end of the shock absorbing elastic member 23 is connected to the linear motion component 32. In some embodiments, the shock absorbing elastic member 23 is a coil spring, and the coil spring type shock absorbing elastic member 23 is sleeved on the shock absorber body 20, one end of which is connected to the upper support 10, and the other end of which is connected to the shock absorber body 20 through the linear motion component 32 to achieve the function of supporting the vehicle body. Of course, the shock absorbing elastic member 23 may also be other forms of elastic members, such as leaf springs, empty springs, etc., which are not limited here.

[0048] In this embodiment, the height adjustment component 30 is provided with a driving motor 31 and a linear motion component 32, and the linear motion component 32 is driven by the driving motor 31. The linear motion component 32 is connected to the upper support 10 through the vibration-damping elastic member 23, so that the driving motor 31 and the linear motion component 32 in the height adjustment component 30 can cooperate with the vibration-damping elastic member 23 and the upper support 10 to support the vehicle body. Specifically, the shock absorber 100 can transmit the force between the vehicle body and the wheel through the upper support 10, the vibration-damping elastic member 23, the linear motion component 32, the driving motor 31 and the shock absorber body 20, thereby playing a role in supporting the vehicle body. The vibration-damping elastic member 23 can play a good role in buffering and reducing vibration when bumps and shakes occur during the driving of the vehicle, making the vehicle driving more stable and comfortable.

[0049] In one embodiment of the present invention, reference Figure 2 As shown, the driving motor 31 may be a hollow motor, and both the driving motor 31 and the linear motion component 32 may be sleeved on the outer peripheral side of the shock absorber body 20 .

[0050] In this embodiment, the drive motor 31 is configured as a hollow motor, which can be easily assembled and fixed with the shock absorber body, making the overall structure of the drive motor 31 and the shock absorber body 20 more compact, thereby making the total volume of the shock absorber 100 smaller and making the shock absorber 100 more flexible and convenient to install and arrange in the vehicle.

[0051] In some examples of the present invention, Figure 2 As shown, the linear motion component 32 may include: a rotating member 321 and a movable member 322. The rotating member 321 is rotatably mounted on the outer peripheral side of the shock absorber body 20. One end of the rotating member 321 is connected to the rotor 313 of the driving motor 31. The driving motor 31 is suitable for driving the rotating member 321 to rotate; the movable member 322 is mounted on the rotating member 321 and is connected to the rotating member 321 through a spiral pair. The movable member 322 is connected to the other end of the shock-absorbing elastic member 23.

[0052] In this embodiment, the rotating member 321 is rotatably sleeved on the outer peripheral side of the shock absorber body 20. Specifically, the rotating member 321 can be a sleeve structure, and the rotating member 321 and the shock absorber body 20 can be coaxially arranged. The movable member 322 is sleeved on the rotating member 321 and connected to the rotating member 321 through a screw pair. The movable member 322 can be connected to the rotating member 321 through a thread pair transmission, and the movable member 322 can also be connected to the rotating member 321 through a ball screw pair transmission. The movable member 322 can spirally move relative to the rotating member 321. When the movable member 322 rotates relative to the rotating member 321, it moves along the axial direction of the shock absorber body 20.

[0053] In this embodiment, the linear motion component 32 is provided with a rotating member 321 and a movable member 322, and one end of the rotating member 321 is connected to the rotor 313. The rotating member 321 and the driving motor 31 can be arranged along the axial direction of the shock absorber body 20 when arranged. In this way, the height adjustment component 30 can be smaller in the radial direction of the shock absorber body 20. The height adjustment component 30 can more fully utilize the arrangement space of the shock absorber 100 in its axial direction to be assembled and arranged with the shock absorber body 20, so that the shock absorber 100 and the height adjustment component 30 are arranged more compactly, thereby greatly reducing the external dimensions of the shock absorber 100 and making the total volume of the shock absorber 100 smaller, so that the shock absorber 100 occupies less space when arranged in the vehicle, and the arrangement is more convenient and flexible.

[0054] The rotating member 321 is arranged on one side of the driving motor 31 in the axial direction of the shock absorber body 20. When the shock absorber 100 is adjusted in height, the driving motor 31 runs, and the rotor 313 drives the rotating member 321 to rotate, so that the movable member 322 moves in a spiral direction and moves along the axial direction of the shock absorber body 20, so that the movable member 322 can drive the shock absorbing elastic member 23 to move along the axial direction of the shock absorber body 20, thereby changing the relative position of the upper support 10 and the shock absorber body 20, thereby realizing the height adjustment of the vehicle body.

[0055] In this embodiment, a rotating part 321 and a movable part 322 are provided in the linear motion component 32. The rotating part 321 is sleeved on the outer peripheral side of the shock absorber cylinder 22 and is connected to the rotor 313 of the drive motor 31. The movable part 322 is sleeved on the rotating part 321 and is connected to the rotating part 321 through a spiral pair. The structure is simple, and the transmission is convenient and reliable, so that the linear motion component 32 and the shock absorber body 20 are arranged more compactly, so that the overall structure of the shock absorber 100 is compact, the volume is small, and the arrangement is convenient.

[0056] In one embodiment of the present invention, reference Figure 2 and Figure 3 As shown, a connection flange may be provided at one end of the rotating member 321, and the rotating member 321 is fixedly connected to the rotor 313 via the connection flange. This makes it convenient and reliable to assemble and fix the rotating member 321 and the rotor 313, so that the rotor 313 can stably and reliably provide driving force to the rotating member 321.

[0057] In one example of the present invention, Figure 3 As shown, a ball 323 is provided between the movable member 322 and the rotating member 321 , and the movable member 322 and the rotating member 321 are connected via a ball screw pair.

[0058] In this embodiment, a ball 323 is arranged between the movable part 322 and the rotating part 321. The movable part 322 and the rotating part 321 are connected through a ball screw pair transmission. Specifically, the inner wall surface of the movable part 322 can form a spiral groove, and the outer wall surface of the rotating part 321 can form a spiral groove. The ball 323 can be arranged in the spiral groove and roll along the spiral groove, so that the movable part 322 and the rotating part 321 cooperate in transmission.

[0059] When the movable part 322 rotates spirally relative to the rotating part 321, the ball 323 can well reduce the friction force, so that the transmission efficiency between the movable part 322 and the rotating part 321 is higher, so that the energy consumption when the driving motor 31 drives the rotating part 321 to rotate is lower, and the service life of the movable part 322 and the rotating part 321 is longer, thereby improving the economy of the shock absorber 100 when used to a certain extent. In this embodiment, the movable part 322 and the rotating part 321 are connected in transmission by a ball screw pair, which has a simple structure, reliable transmission, and accurate positioning, so that the height adjustment component 30 can well adjust the vehicle height as needed, and the vehicle height adjustment is more controllable.

[0060] In some examples of the present invention, the linear motion component 32 may be provided with a self-locking structure, and the locking structure is suitable for locking the movable part 322 with the rotating part 321. In this way, after the height adjustment component 30 raises the vehicle body to the desired height, the locking structure locks the movable part 322 with the rotating part 321, so that the movable part 322 and the rotating part 321 cooperate stably, and reliably maintain the relative position of the upper support 10 and the shock absorber body 20, so that the shock absorber 100 can stably and reliably perform the height adjustment operation on the vehicle body. Optionally, the movable part 322 is a lead screw nut, the rotating part 321 is a lead screw, and the self-locking structure is provided in the lead screw and the lead screw nut.

[0061] In some examples of the present invention, Figure 3 As shown, the linear motion component 32 may further include a first sealing ring 325, the first sealing ring 325 is sealingly connected between the rotating member 321 and the movable member 322, and the first sealing ring 325 cooperates with the rotating member 321 and the movable member 322 to seal the ball 323 between the rotating member 321 and the movable member 322. In this way, dust and impurities can be well prevented from entering the gap between the rotating member 321 and the movable member 322, so that the ball 323 can stably cooperate with the rotating member 321 and the movable member 322 for transmission.

[0062] In one embodiment of the present invention, Figure 4 As shown, the movable member 322 and the rotating member 321 can be threadedly connected.

[0063] In this embodiment, the movable member 322 and the rotating member 321 are arranged to be threadedly connected. Specifically, the inner wall surface of the movable member 322 and the outer wall surface of the rotating member 321 may both be formed with threads. The movable member 322 and the rotating member 321 are threadedly matched for transmission. When the rotating member 321 rotates, the movable member 322 rotates along the spiral direction of the thread, so that the movable member 322 moves along the axial direction of the shock absorber body 20. In this embodiment, the movable member 322 is threadedly connected to the rotating member 321, which has a simple structure, stable and reliable transmission, and makes the overall structure of the linear motion component 32 more compact, so that the outer dimensions of the shock absorber 100 can be smaller, and the arrangement of the shock absorber 100 can be more convenient.

[0064] Furthermore, the linear motion component 32 can be provided with a locking structure, which is used to lock the movable part 322 with the rotating part 321, or the drive motor 31 can have a self-locking structure. When the drive motor 31 stops running, the rotor 313 can be locked, so that the rotating part 321 does not rotate under the action of external force, thereby keeping the vehicle body height unchanged.

[0065] In one embodiment of the present invention, Figure 3 As shown, the linear motion component 32 may further include a connecting bearing 324 , which is sleeved on the outer peripheral side of the shock absorber body 20 , and the connecting bearing 324 is arranged between the rotating member 321 and the shock absorber body 20 , and the rotating member 321 can rotate relative to the shock absorber body 20 .

[0066] In this embodiment, a connecting bearing 324 is provided between the rotating member 321 and the shock absorber body 20. The connecting bearing 324 can connect and limit the rotating member 321 and the shock absorber body 20, thereby avoiding interference between the rotating member 321 and the shock absorber body 20 during rotation, and allowing the rotating member 321 to rotate stably and reliably.

[0067] In some examples of the present invention, Figure 3 As shown, at least two connecting bearings 324 may be provided, and the two connecting bearings 324 may be respectively arranged at both ends of the axial direction of the rotating member 321. In this way, the connecting bearings 324 can play a good role in connecting and supporting the rotating member 321 in the axial direction, so that the rotating member 321 can operate stably and well within the axial extension range of the shock absorber body 20. The multiple connecting bearings 324 connect the rotating member 321 with the shock absorber body 20, so that the overall structure of the linear motion component 32 and the shock absorber body 20 is more compact and has better integrity, so that the shock absorber 100 can operate stably and reliably during operation.

[0068] In one example of the present invention, Figure 3As shown, the linear motion component 32 can also include a second sealing ring 326, which is arranged between the rotating member 321 and the shock absorber body 20, and the second sealing ring 326 is arranged at one end of the rotating member 321 away from the drive motor 31, and the cover is on the side of the connecting bearing 324 away from the drive motor 31.

[0069] In this embodiment, a second sealing ring 326 is provided on the side of the connecting bearing 324 away from the driving motor 31. The second sealing ring 326 can play a good sealing and protective role for the connecting bearing 324 between the rotating member 321 and the shock absorber body 20, and can prevent dust and impurities from falling into the connecting bearing 324 and causing unstable operation of the connecting bearing 324, so that the connecting bearing 324 can operate stably, thereby allowing the shock absorber 100 to operate more stably and well.

[0070] In one example of the present invention, Figure 1 As shown, the movable member 322 may be provided with a first support seat 3221 , and the first support seat 3221 is connected to the other end of the vibration-damping elastic member 23 .

[0071] In this embodiment, a first support seat 3221 is provided on the movable member 322, which can facilitate connection and assembly with the vibration-damping elastic member 23, so that the connection between the vibration-damping cylinder 22 spring and the movable member 322 is stable and reliable, thereby making the shock absorber 100 operate more stably.

[0072] In a specific embodiment of the present invention, Figure 1 As shown, the shock absorber 100 may further include a second support seat 41, the second support seat 41 is connected to the upper support 10, and one end of the shock absorbing elastic member 23 may be connected to the second support seat 41. In this way, the shock absorbing elastic member 23 can be more stably and reliably connected between the upper support 10 and the movable member 322, so that when the shock absorber 100 is in operation, the shock absorbing elastic member 23 can stably and reliably perform vibration damping, thereby making the shock absorber 100 operate more stably. Optionally, the second support seat 41 is detachably connected to the upper support 10 for easy assembly and fixation.

[0073] In one example of the present invention, Figure 1 and Figure 2 As shown, the height adjustment assembly 30 may further include a connecting member 33 , the driving motor 31 includes a housing 311 , and the housing 311 and the shock absorber body 20 may be connected via the connecting member 33 .

[0074] In this embodiment, a connecting member 33 is provided to connect the housing 311 of the driving motor 31 with the shock absorber body 20 , which has a simple structure and convenient connection, so that the driving motor 31 can be fixed on the shock absorber body 20 more reliably.

[0075] In some specific embodiments of the present invention, Figure 2 As shown, the connecting member 33 may include: a connecting cylinder portion 331 and a connecting plate portion 332, the connecting cylinder portion 331 is sleeved on the outer peripheral side of the shock absorber body 20 and connected to the shock absorber body 20, the connecting plate portion 332 is connected to one axial side of the connecting cylinder portion 331 and extends radially outward along the connecting cylinder portion 331, and the shell 311 is connected to the connecting plate portion 332.

[0076] In this embodiment, the connecting member 33 is provided with a connecting cylinder portion 331 and a connecting plate portion 332. The connecting cylinder portion 331 is sleeved on the outer peripheral side of the shock absorber body 20 and is fixedly connected to the shock absorber body 20. The connecting cylinder portion 331 can have a larger connection matching surface with the shock absorber body 20, so that the connecting cylinder portion 331 can be stably and reliably connected to the shock absorber body 20, and the connecting cylinder portion 331 and the shock absorber body 20 have good connection and fixing strength.

[0077] The connecting plate portion 332 extends radially outwardly along the connecting cylinder portion 331 and is connected to the circumference of one end of the connecting cylinder portion 331. The connecting plate portion 332 is arranged at the lower end of the housing 311, so that the connecting plate portion 332 can have a larger connection and matching surface with the housing 311, so that the connecting member 33 can be stably and reliably connected and fixed to the housing 311. The connecting member 33 can play a good supporting role for the housing 311 in the axial direction of the shock absorber body 20, so that the drive motor 31 can be stably and reliably fixedly connected to the shock absorber body 20. Optionally, the connecting cylinder portion 331 and the connecting plate portion 332 can be integrally formed.

[0078] In one embodiment of the present invention, Figure 2 As shown, the drive motor 31 may further include a stator 312 and a rotor 313 . Both the stator 312 and the rotor 313 are disposed in the housing 311 . The stator 312 is sleeved on the outer circumference of the rotor 313 and fixed to the housing 311 . One end of the rotor 313 is connected to the rotating member 321 .

[0079] When the shock absorber 100 is adjusted, the driving motor 31 is in operation, and the rotor 313 rotates to cause the movable part 322 to move relative to the rotating part 321 along the axial direction of the shock absorber body 20, so that the first support seat 3221 can move relative to the shock absorber body 20, and the shock-absorbing elastic member 23 and the upper support 10 move as a whole following the movement of the first support seat 3221, thereby increasing or decreasing the distance between the upper support 10 and the shock absorber body 20, thereby raising or lowering the vehicle body.

[0080] It can be understood that when the rotor 313 rotates freely, the force from the vehicle body is transmitted to the movable part 322 on the first support seat 3221 during the up and down bouncing of the vehicle body, so that the movable part 322 can rotate spirally relative to the rotating part 321 to cooperate with the axial movement of the first support seat 3221 along the shock absorber body 20, so that the rotating part 321 can drive the rotor 313 to rotate, thereby converting the energy of the vehicle body vibration into electrical energy for storage, thereby realizing energy recovery well.

[0081] In this embodiment, the stator 312 of the drive motor 31 is sleeved on the outer peripheral side of the rotor 313, so that the rotor 313 and the shock absorber body 20 can be arranged more compactly in the radial direction of the shock absorber body 20, so that the rotating member 321 connected to the rotor 313 and the shock absorber body 20 can be arranged more compactly, and the radial arrangement space of the rotating member 321 in the shock absorber body 20 can be reduced to a certain extent, so that the overall volume of the shock absorber 100 is smaller, and the shock absorber 100 can be arranged more flexibly and conveniently in the vehicle.

[0082] In some examples of the present invention, Figure 2 As shown, the linear motion component 32 and the driving motor 31 may be arranged along the axial direction of the shock absorber body 20 , and the driving motor 31 is located on a side of the linear motion component 32 away from the upper support 10 .

[0083] In this embodiment, the linear motion component 32 and the drive motor 31 are arranged along the axial direction of the shock absorber body 20, so that the overall structure of the height adjustment assembly 30 and the shock absorber body 20 can be more compact and the total volume can be smaller, so that the shock absorber 100 is more convenient and flexible when installed and arranged. The drive motor 31 is arranged on the side of the linear motion component 32 away from the upper support 10, with a simple structure and reasonable arrangement, which is convenient for the assembly of the linear motion component 32 with the damping elastic member 23 and the upper support 10.

[0084] In some examples of the present invention, Figure 2 As shown, the driving motor 31 and the shock absorber body 20 may be coaxially arranged.

[0085] In this embodiment, the drive motor 31 is coaxially arranged with the shock absorber body 20, which can facilitate the coordinated use and assembly arrangement of the drive motor 31 and the shock absorber body 20, so that the overall structure of the shock absorber 100 can be better maintained in a stable state when the drive motor 31 is running, so that the shock absorber 100 can be stably and reliably adjusted.

[0086] In some examples of the present invention, Figure 2As shown, the shock absorber body 20 may include a piston rod 21 and a shock absorber cylinder 22 sleeved on the outer circumference of the piston rod 21 . The piston rod 21 and the shock absorber cylinder 22 can move relative to each other along the axial direction of the shock absorber body 20 . The piston rod 21 is connected to the upper support 10 .

[0087] In this embodiment, the shock absorber body 20 includes a piston rod 21 and a shock absorber cylinder 22 which can move relative to each other. The piston rod 21 is connected to the upper support 10. Specifically, the drive motor 31 and the linear motion component 32 are fixed on the shock absorber cylinder 22 and are arranged on the outer peripheral side of the shock absorber cylinder 22. The shock absorber elastic member 23 is connected between the linear motion component 32 and the upper support 10. When the shock absorber 100 is running, the rotation of the drive motor 31 drives the rotating member 321 to rotate, thereby causing the movable member 322 to move along the axial direction of the shock absorber body 20, and then causing the shock absorber elastic member 23 and the upper support 10 and the piston rod 21 to move as a whole relative to the shock absorber cylinder 22, thereby changing the relative position of the upper support 10 and the shock absorber cylinder 22 in the axial direction of the shock absorber body 20, so that the vehicle body height can be well adjusted.

[0088] In this embodiment, a piston rod 21 is provided, and the piston rod 21 is connected to the upper support 10. The shock-absorbing cylinder 22 is sleeved on the outer peripheral side of the piston rod 21. The piston rod 21 can play a good guiding role to a certain extent, so that the upper support 10 can stably move along the axial direction of the shock-absorbing cylinder 22, thereby making the shock absorber 100 operate more stably.

[0089] In one example of the present invention, Figure 2 As shown, the damping cylinder 22 may include: an outer cylinder 221 and an inner cylinder 222, the inner cylinder 222 is sleeved on the outer periphery of the piston rod 21, the outer cylinder 221 is sleeved on the outer periphery of the inner cylinder 222 and is fixed relative to the inner cylinder 222, the outer cylinder 221 and the inner cylinder 222 jointly define an overflow chamber 202, an active chamber 201 is formed on the inner side of the inner cylinder 222, one end of the piston rod 21 is connected to the upper support 10, the other end of the piston rod 21 extends into the active chamber 201 and is provided with a piston 24, a flow valve is provided between the active chamber 201 and the overflow chamber 202, and the flow valve is used to control the connection or isolation between the active chamber 201 and the overflow chamber 202.

[0090] In the present embodiment, the vibration-damping cylinder 22 is configured as a double-cylinder structure, which can make the vibration-damping cylinder 22 have a higher structural strength and can withstand a greater lateral force, so that the height adjustment component 30 disposed on the outer peripheral side of the vibration-damping cylinder 22 can operate more stably and reliably.

[0091] In this embodiment, the other end of the piston rod 21 is extended into the active cavity 201 of the shock absorber cylinder 22 and a piston 24 is provided. Specifically, there is oil in the active cavity 201, and the outer peripheral surface of the piston 24 is slidably abutted against the inner peripheral wall of the active cavity 201. The piston 24 can be provided with a flow hole that penetrates the piston 24 along the thickness direction of the piston 24. When the shock absorber 100 is running, the shock absorbing elastic member 23 is deformed to buffer the vibration, and the piston rod 21 moves axially along the shock absorber body 20 relative to the shock absorber cylinder 22, so that the piston 24 slides along the inner wall surface of the active cavity 201 in the active cavity 201, and the oil flows on both sides of the piston 24 through the flow hole, thereby forming a damping force to suppress the rapid rebound of the shock absorbing elastic member 23, so that the vibration of the shock absorbing elastic member 23 is quickly attenuated, so that the vehicle runs more smoothly and more comfortably.

[0092] When the shock absorber 100 is running, the shock absorber 100 can control the opening and closing of the circulation valve according to the vibration reduction needs, so that the oil can flow from the overflow chamber 202 into the active chamber 201 or from the active chamber 201 into the overflow chamber 202, thereby conveniently adjusting the damping force of the shock absorber 100, so that the shock absorber 100 can be in the best vibration reduction working condition, thereby making the vibration reduction effect of the shock absorber 100 better.

[0093] In some specific embodiments of the present invention, Figure 2 As shown, the outer cylinder 221 and the inner cylinder 222 can be coaxially arranged and sealed at both ends. Specifically, the outer cylinder 221 is sleeved on the outer circumference of the inner cylinder 222, and the two ends of the inner cylinder 222 are respectively sealed with the two ends of the outer cylinder 221, so that an overflow chamber 202 and an active chamber 201 with good sealing performance can be formed between the outer cylinder 221 and the inner cylinder 222, so that the shock absorber 100 can operate more stably and reliably.

[0094] In some specific embodiments of the present invention, Figure 2 As shown, the shock absorber 100 may further include a seal 44, which is disposed at one end of the shock absorber cylinder 22 facing the upper support 10, and is sleeved on the piston rod 21, and the seal 44 is sealed and connected between the piston rod 21 and the shock absorber cylinder 22. Specifically, the seal 44 cooperates with the inner cylinder 222 to define the active chamber 201, and the seal 44 cooperates with the inner cylinder 222 and the outer cylinder 221 to define the overflow chamber 202. In this way, the active chamber 201 and the overflow chamber 202 can be well sealed, so that the shock absorber 100 can operate more stably and reliably.

[0095] In some specific implementations of the present utility model, such as Figure 2 As shown, the piston rod 21 may be provided with a limiter 45, which is sleeved on the piston rod 21 and located in the active chamber 201. This can limit the movement of the piston rod 21 in the axial direction of the shock absorber body 20, so that the piston rod 21 and the shock absorber cylinder 22 can work stably and reliably.

[0096] In some specific embodiments of the present invention, Figure 2 As shown, the shock absorber 100 may further include a first buffer member 42 , which is fixed to the upper support 10 and located between the shock absorber body 20 and the upper support 10 , and is sleeved on the outer periphery of the piston rod 21 .

[0097] In this embodiment, the first buffer 42 is provided on the shock absorber 100. The first buffer 42 is sleeved on the piston rod 21 and fixedly connected to the second support seat 41. Specifically, the first buffer 42 can extend axially along the shock absorber body 20, and one end of the first buffer 42 is connected and fixed to the upper support 10. The first buffer 42 is provided between the second support seat 41 and the shock absorber cylinder 22. When the piston rod 21 moves, the first buffer 42 can buffer the shock absorber cylinder 22 and the second support seat 41, avoiding the collision between the shock absorber cylinder 22 and the second support seat 41, so that the shock absorber 100 can operate stably. Optionally, the first buffer 42 can be a 1,5-naphthalene diisocyanate component or a diphenylmethane diisocyanate component, so that the first buffer 42 has better structural strength, wear resistance, heat resistance and elasticity, so that the first buffer 42 has a better buffering effect and a longer service life.

[0098] In a specific embodiment of the present invention, Figure 2 As shown, a support ring 43 may be provided on the first buffer member 42 , and the support ring 43 is sleeved and fixed on the outer peripheral side of the first buffer member 42 .

[0099] In this embodiment, a support ring 43 is sleeved on the first buffer 42, and the support ring 43 can play a certain guiding and limiting supporting role for the first buffer 42 when it is deformed, so that the first buffer 42 can stably buffer the deformation along the axial direction of the shock absorber body 20, and the first buffer 42 can be stably and reliably sleeved on the outer peripheral side of the piston rod 21 during the movement of the piston rod 21. Optionally, the support ring 43 can be a polyoxymethylene part, so that the support ring 43 has higher hardness, rigidity and wear resistance, so that the support ring 43 can cooperate well with the first buffer 42 to perform buffering operations.

[0100] In some examples of the present invention, Figure 1 and Figure 2As shown, the shock absorber 100 may further include a second buffer 46, which is disposed between the shock-absorbing elastic member 23 and the first support seat 3221 and between the shock-absorbing elastic member 23 and the second support seat 41. In this way, when the shock-absorbing elastic member 23 is telescopically deformed in the axial direction of the shock absorber body 20, the second buffer 46 can play a good buffering role on the impact between the shock-absorbing elastic member 23 and the first support seat 3221, and can play a good buffering role on the impact between the shock-absorbing elastic member 23 and the second support seat 41, so that the shock-absorbing elastic member 23 can stably cooperate with the first support seat 3221 and the second support seat 41. Optionally, the second buffer 46 can be a rubber pad.

[0101] In some embodiments of the present invention, Figure 2 As shown, the shock absorber 100 may also include a dust cover 48, which is sleeved on the outer peripheral side of the piston rod 21, and extends along the axial direction of the piston rod 21. The upper end of the dust cover 48 is connected to the upper support 10, and the lower end of the dust cover 48 extends to the outer peripheral side of the shock absorber cylinder 22 and is connected to the outer peripheral wall of the shock absorber cylinder 22.

[0102] In this embodiment, a dust cover 48 is provided on the outer peripheral side of the piston rod 21, which can effectively prevent pollutants, particulate impurities, etc. from the external environment from adhering to the surface of the piston rod 21, so that the piston rod 21 can stably and reliably cooperate with the shock absorber cylinder 22, making the shock absorber 100 operate more stably.

[0103] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the shock absorber 100 may further include a connecting bracket 47, the connecting bracket 47 is connected to the lower end of the shock absorber cylinder 22, and the connecting bracket 47 is connected to the wheel.

[0104] In this embodiment, a connecting bracket 47 is provided, and the shock absorber 100 is connected to the wheel via the connecting bracket 47 , which has a simple structure and is convenient and easy to connect and assemble.

[0105] Reference below Figure 1-Figure 4 A suspension assembly according to an embodiment of the second aspect of the utility model is described.

[0106] like Figure 1-Figure 4 As shown, the suspension assembly according to the embodiment of the utility model includes the shock absorber 100 according to the embodiment of the first aspect of the utility model.

[0107] Other structures and operations of the suspension assembly according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0108] According to the suspension assembly of the embodiment of the utility model, by setting the shock absorber 100 of the first aspect embodiment mentioned above, the shock absorber 100 is provided with a shock absorber body 20 and a height adjustment component 30, and the height adjustment component 30 is coaxially arranged on the shock absorber body 20 and is used to adjust the position of the upper support 10 relative to the shock absorber body 20, which can greatly improve the performance of the vehicle and make the shock absorber 100 more flexible and convenient during installation and arrangement.

[0109] Reference below Figure 1-Figure 4 A vehicle according to an embodiment of the third aspect of the utility model is described.

[0110] like Figure 1-Figure 4 As shown, a vehicle according to an embodiment of the utility model includes a suspension assembly according to an embodiment of the second aspect of the utility model.

[0111] Other structures and operations of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0112] According to the vehicle of the embodiment of the utility model, by setting the suspension assembly of the above-mentioned second aspect embodiment, the suspension assembly is provided with a shock absorber 100, the shock absorber 100 is provided with a shock absorber body 20 and a height adjustment component 30, the height adjustment component 30 is coaxially arranged on the shock absorber body 20 and is used to adjust the position of the upper support 10 relative to the shock absorber body 20, which can greatly improve the performance of the vehicle and make the shock absorber 100 more flexible and convenient during installation and arrangement.

[0113] The following will refer to Figure 1-Figure 4 A vehicle according to a specific embodiment of the present invention is described.

[0114] like Figure 1-Figure 4 As shown, the vehicle includes a body, wheels and a suspension assembly. The suspension assembly includes a shock absorber 100. The shock absorber 100 is connected to the body and the wheels. The shock absorber 100 is arranged at each wheel.

[0115] The shock absorber 100 includes the shock absorber 100 , a height adjustment assembly 30 , a shock absorbing elastic member 23 , a second buffer member 46 , an upper support 10 and a connecting bracket 47 .

[0116] The shock absorber 100 includes a second support seat 41, a first buffer member 42, a dust cover 48, a shock absorber body 20 and a sealing member 44. The shock absorber body 20 includes a shock absorber cylinder 22, a piston rod 21 and a piston 24. The shock absorber cylinder 22 includes an outer cylinder 221 and an inner cylinder 222 arranged coaxially, the outer cylinder 221 is sleeved on the outer side of the inner cylinder 222, the outer cylinder 221 is sealedly connected to the lower end of the inner cylinder 222, and the sealing member 44 is arranged at the upper end of the shock absorber cylinder 22 and is sealedly connected to the outer cylinder 221 and the inner cylinder 222.

[0117] The seal 44 cooperates with the outer tube 221 and the inner tube 222 to define the overflow chamber 202, and the seal 44 cooperates with the inner tube 222 to define the active chamber 201. The piston 24 is set at one end of the piston rod 21 and extends into the active chamber 201. The seal 44 is sleeved on the piston rod 21. The other end of the piston rod 21 is fixedly connected to the upper support 10 by bolts. The second support seat 41 is fixedly connected to the upper support 10 by bolts. The first buffer 42 is sleeved on the other end of the piston rod 21 and fixedly connected to the upper support 10. The first buffer 42 is sleeved with a support ring 43. The dust cover 48 is set on the outer peripheral side of the piston rod 21. The upper end of the dust cover 48 is connected to the upper support 10, and the lower end of the dust cover 48 extends to the outer peripheral side of the shock absorbing tube 22.

[0118] The height adjustment assembly 30 includes a driving motor 31, a rotating member 321, a movable member 322, a connecting bearing 324, a connecting member 33 and a second sealing ring 326. The driving motor 31 is a hollow motor, a rotating motor, and includes a housing 311, a rotor 313 and a stator 312. The stator 312 is sleeved on the outer side of the rotor 313 and fixedly connected to the housing 311. The rotor 313 is sleeved on the outer peripheral side of the damping cylinder 22. The connecting member 33 is a flange. The connecting member 33 includes a connecting cylinder portion 331 and a connecting plate portion 332. The connecting cylinder portion 331 is sleeved on the damping cylinder 22 and connected to the damping cylinder 22. The connecting plate portion 332 is connected to the upper end circumference of the connecting cylinder portion 331 and extends outward along the radial direction of the connecting cylinder portion 331. The connecting plate portion 332 is connected to the lower flange of the housing 311.

[0119] The rotating member 321 is a screw rod, and the lower end of the rotating member 321 is fixedly connected to the rotor 313 through a connecting flange. The rotating member 321 is sleeved on the outer peripheral side of the vibration damping cylinder 22. A connecting bearing 324 is arranged between the rotating member 321 and the vibration damping cylinder 22. There are two connecting bearings 324 and they are respectively arranged at the upper and lower ends of the rotating member 321. The second sealing ring 326 is sealed at the upper end of the rotating member 321 and is located on the upper side of the connecting bearing 324. The second sealing ring 326 is sealed between the rotating member 321 and the vibration damping cylinder 22.

[0120] The movable part 322 is a screw nut, which is sleeved on the outer peripheral side of the rotating part 321. A ball 323 is arranged between the movable part 322 and the rotating part 321. The movable part 322 cooperates with the ball 323 and the rotating part 321 to form a ball 323 screw transmission pair. The movable part 322 and the rotating part 321 are connected by the ball 323 screw pair. The first support seat 3221 is welded on the movable part 322. The damping elastic member 23 is sleeved on the damping cylinder 22 and is arranged between the first support seat 3221 and the second support seat 41. The damping elastic member 23 is a spring and its two ends are respectively in contact with the first support seat 3221 and the second support seat 41 through the second buffer member 46. The second buffer member 46 is a rubber pad. The connecting bracket 47 is fixedly connected to the lower end of the damping cylinder 22, the connecting bracket 47 is connected to the wheel of the vehicle, and the upper support 10 is connected to the body of the vehicle.

[0121] In this embodiment, the shock absorber 100 and the height adjustment component 30 are arranged in the shock absorber 100, and the driving motor 31 and the linear motion component 32 in the height adjustment component 30 are both mounted on the outer peripheral side of the shock absorber cylinder 22 of the shock absorber 100, and the driving motor 31 and the linear motion component 32 are arranged in the up and down direction, so that the overall structure of the shock absorber 100 is more compact and the volume is smaller, so that the shock absorber 100 is more flexible and convenient during installation and arrangement.

[0122] When the height of the vehicle body needs to be raised, the driving motor 31 starts, and the rotor 313 rotates clockwise, driving the rotating part 321 to rotate clockwise, so that the rotating part 321 pushes the ball 323 to circulate continuously and makes the movable part 322 move upward along the axial direction of the shock absorber body 20, thereby driving the first support seat 3221 to move upward, and the shock-absorbing elastic member 23 transmits the force to the second support seat 41 under the push of the first support seat 3221, so that the upper support 10 moves upward, so that the upper support 10 pushes the vehicle body up, and the vehicle body is raised. When the vehicle body is raised to the required height, the driving motor 31 stops running, and the locking structure inside the movable part 322 and the rotating part 321 locks the movable part 322 and the rotating part 321, so that the vehicle body is maintained at the required height.

[0123] When the height of the vehicle body needs to be lowered, the drive motor 31 is turned on and the rotor 313 rotates counterclockwise, so that the movable part 322 moves downward along the axial direction of the shock absorber body 20, and then the shock-absorbing elastic part 23 moves downward as a whole. Under the action of gravity, the vehicle body moves downward together with the upper support 10, so as to achieve the lowering of the vehicle body. When the vehicle body is lowered to the required height, the locking structure inside the movable part 322 and the rotating part 321 locks the movable part 322 and the rotating part 321, so that the vehicle body is maintained at the required height.

[0124] When the vehicle passes over a flat road, the shock absorbers 100 at the four wheels can be lowered at the same time as needed, so that the height of the vehicle body is lowered to reduce driving resistance, thereby greatly improving the driving stability and controllability of the vehicle.

[0125] When the vehicle passes through an uneven road surface, the four shock absorbers 100 can be raised at the same time to raise the vehicle body and increase the ground clearance of the vehicle body, thereby improving the vehicle's passability.

[0126] When the vehicle passes through a road with one side higher than the other, the vehicle can lower the height of the front and rear shock absorbers 100 on the side with the higher road surface and raise the height of the two shock absorbers 100 on the side with the lower road surface, so that the vehicle body always remains in a horizontal state, thereby improving the comfort and stability of the vehicle during driving.

[0127] When the vehicle is turning, the vehicle can raise the height of the two outer shock absorbers 100 and lower the height of the two inner shock absorbers 100, thereby reducing the roll amplitude of the vehicle body caused by the inertial force, making the vehicle more stable when turning.

[0128] When the vehicle is climbing a slope, the vehicle can lower the height of the two front shock absorbers 100 and raise the height of the two rear shock absorbers 100. When the vehicle is going downhill, the two front shock absorbers 100 are raised and the two rear shock absorbers 100 are lowered, so that the vehicle body posture can be kept as horizontal as possible, making the vehicle more comfortable to ride, and can better avoid obvious changes in the adhesion of the front and rear wheels caused by the transfer of the vehicle's center of gravity, so that the vehicle can maintain good driving performance and braking performance, making the vehicle safer when climbing or going downhill.

[0129] In another embodiment of the present invention, Figure 4 As shown, the rotating member 321 and the movable member 322 are connected by a threaded pair transmission, which can make the rotating member 321 and the movable member 322 more compact, so that the overall volume of the height adjustment component 30 can be smaller, so that the shock absorber 100 can occupy less layout space, making the layout of the shock absorber 100 more convenient and flexible.

[0130] In the description of the present invention, 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 invention 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 invention.

[0131] In addition, the terms "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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0132] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 a communication; 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 the present invention can be understood according to specific circumstances.

[0133] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0134] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shock absorber, characterized in that: include: Upper support; A shock absorber body, one end of which is suitable for being connected to the wheel, and the other end of which is suitable for being connected to the vehicle body through the upper support; A height adjustment component is coaxially arranged on the shock absorber body, and in the axial direction of the shock absorber body, the height adjustment component is used to adjust the position of the upper support relative to the shock absorber body.

2. The shock absorber according to claim 1, characterized in that: The height adjustment assembly includes a drive motor and a linear motion component, the drive motor can drive the linear motion component to move along the axial direction of the shock absorber body, the shock absorber body includes a shock-absorbing elastic member, one end of the shock-absorbing elastic member is connected to the upper support, and the other end of the shock-absorbing elastic member is connected to the linear motion component.

3. The shock absorber according to claim 2, characterized in that: The driving motor is a hollow motor, and both the driving motor and the linear motion component are sleeved on the outer peripheral side of the shock absorber body.

4. The shock absorber according to claim 3, characterized in that The linear motion component comprises: A rotating member, the rotating member is rotatably sleeved on the outer peripheral side of the shock absorber body, one end of the rotating member is connected to the rotor of the driving motor, and the driving motor is suitable for driving the rotating member to rotate; A movable part is sleeved on the rotating part and connected to the rotating part through a screw pair, and the movable part is connected to the other end of the vibration-damping elastic part.

5. The shock absorber according to claim 4, characterized in that The movable part is threadedly connected to the rotating part; or, a ball is provided between the movable part and the rotating part, and the movable part and the rotating part are transmission-connected through the ball screw pair.

6. The shock absorber according to claim 4, characterized in that The movable member is provided with a first supporting seat, and the first supporting seat is connected to the other end of the vibration-damping elastic member.

7. The vibration absorber according to claim 4, characterized in that: The height adjustment component further includes a connecting piece, the driving motor includes a shell, and the shell is connected to the shock absorber body through the connecting piece.

8. The shock absorber according to claim 7, characterized in that The connecting member includes: a connecting cylinder portion and a connecting plate portion, the connecting cylinder portion is sleeved on the outer peripheral side of the shock absorber body and connected to the shock absorber body, the connecting plate portion is connected to one axial side of the connecting cylinder portion and extends radially outward along the connecting cylinder portion, and the shell is connected to the connecting plate portion.

9. The vibration absorber according to claim 3, characterized in that: The linear motion component and the driving motor are arranged along the axial direction of the shock absorber body, and the driving motor is located on a side of the linear motion component away from the upper support.

10. The vibration absorber according to claim 3, characterized in that: The shock absorber body comprises a piston rod and a shock absorber cylinder sleeved on the outer periphery of the piston rod. The piston rod and the shock absorber cylinder can move relative to each other along the axial direction of the shock absorber body. The piston rod is connected to the upper support.

11. The shock absorber according to claim 10, characterized in that The damping cylinder comprises: an outer cylinder and an inner cylinder, the inner cylinder is sleeved on the outer circumference of the piston rod, the outer cylinder is sleeved on the outer circumference of the inner cylinder and is fixed relative to the inner cylinder, an overflow chamber is defined between the outer cylinder and the inner cylinder, an active chamber is formed on the inner side of the inner cylinder, one end of the piston rod is connected to the upper support, the other end of the piston rod extends into the active chamber and is provided with a piston, a flow valve is provided between the active chamber and the overflow chamber, and the flow valve is used to control the connection or isolation between the active chamber and the overflow chamber.

12. The shock absorber according to claim 11, characterized in that The shock absorber further comprises a first buffer member, which is fixed to the upper support and located between the shock absorber body and the upper support, and the first buffer member is sleeved on the outer circumference of the piston rod.

13. The shock absorber according to claim 12, characterized in that The first buffer member is provided with a support ring, and the support ring is sleeved and fixed on the outer peripheral side of the first buffer member.

14. A suspension assembly, characterized in that: Comprising a vibration absorber according to any one of claims 1-13.

15. A vehicle, characterized in that: Comprising a suspension assembly according to claim 14.

Images