Shock absorber and vehicle

Abstract

The utility model provides a shock absorber and a vehicle, the shock absorber comprises a shock absorber body, the shock absorber body comprises a cylinder and a piston rod, and the outer end of the piston rod protrudes out of the cylinder; the limiting assembly is detachably arranged outside the barrel in a sleeving mode, the limiting assembly comprises a first limiting block and a second limiting block which are of a semi-circular ring structure, and the first limiting block and the second limiting block are detachably matched so as to be arranged outside the barrel in a sleeving mode; the piston assembly is arranged outside at least part of the piston rod and at least part of the cylinder in a sleeving mode, and the end, close to the outer end, of the limiting assembly penetrates into the piston assembly so as to be in interference fit with the piston assembly. The cylinder is sleeved with the first limiting block and the second limiting block in a detachable matching mode, so that assembly of the limiting assembly is not affected by the outer diameter of the sealing end of the cylinder, the repair probability is reduced, the assembly time is saved, and the repair cost of the shock absorber can be reduced while the production efficiency of the shock absorber is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a shock absorber and a vehicle. Background Art

[0002] During shock absorber manufacturing, to ensure the sealing performance of the sealed end of the cylinder, a sealing component is typically installed at the sealed end, resulting in a relatively large outer diameter. When the outer diameter of the sealed end of the cylinder is large, the stopper cannot be installed outside the cylinder, resulting in shock absorber assembly failure. This not only affects shock absorber production efficiency but also increases the cost of repair. Therefore, how to improve shock absorber production efficiency while reducing repair costs is a technical problem that needs to be solved in this field. Utility Model Content

[0003] In view of the above problems, the present application provides a shock absorber and a vehicle to improve the production efficiency of the shock absorber while reducing the rework cost.

[0004] In the first aspect, the present application provides a shock absorber, which includes: a shock absorber body, including a cylinder and a piston rod, and the outer end of the piston rod protrudes from the cylinder; a limit assembly, which is detachably mounted on the outside of the cylinder, and the limit assembly includes a first limit block and a second limit block in a semicircular ring structure, and the first limit block and the second limit block are detachably matched to be mounted on the outside of the cylinder; a piston assembly, which is mounted on at least part of the piston rod and at least part of the cylinder, and one end of the limit assembly close to the outer end is inserted into the piston assembly to be interference-connected with the piston assembly.

[0005] In some embodiments, one of the first end face of the first limit block close to the second limit block and the second end face of the second limit block close to the first limit block is provided with a first connecting portion, and the other of the first end face and the second end face is provided with a second connecting portion adapted to the first connecting portion, and the first connecting portion and the second connecting portion are detachably connected; wherein, the first end face and the second end face are arranged along the circumference of the cylinder.

[0006] In some embodiments, one of the first connection part and the second connection part is a positioning hole, and the other is a positioning pin; or one of the first connection part and the second connection part is a card slot, and the other is a card block; or one of the first connection part and the second connection part is a first magnetic part, and the other is a second magnetic part; or one of the first connection part and the second connection part is a first Velcro accessory, and the other is a first Velcro accessory.

[0007] In some embodiments, the inner surfaces of the first limit block and the second limit block are both provided with first ribs, and the outer surfaces of the first limit block and the second limit block are both provided with second ribs; wherein the first rib is in interference connection with the cylinder, and the second rib is in interference connection with the piston assembly.

[0008] In some embodiments, the first limit block and the second limit block both include a support plate and a boss connected along the axial direction of the cylinder, the boss is arranged at the end of the support plate close to the outer end and is passed through the piston assembly; wherein the first rib and the second rib are both arranged on the boss.

[0009] In some embodiments, the first connecting portion and the second connecting portion are disposed on the support plate and / or the boss.

[0010] In some embodiments, the shock absorber further includes a tray, which is sleeved outside the cylinder and located at an end of the limiting assembly away from the outer end, and is used to support the limiting assembly.

[0011] In some embodiments, the shock absorber further includes a sealing member, which is sleeved outside the cylinder and located at an end portion of the limiting assembly close to the outer end.

[0012] In some embodiments, the shock absorber includes: a tube body, which is sleeved outside the piston rod and connected to the cylinder at one end of the tube body facing the cylinder, and the outer diameter of the tube body is larger than the outer diameter of the cylinder; and a sleeve body, which is sleeved outside the tube body.

[0013] In a second aspect, the present application provides a vehicle comprising the above-mentioned shock absorber.

[0014] The beneficial effects of the embodiments of the present application are as follows: the present application provides a shock absorber and a vehicle, the shock absorber including a shock absorber body, a limit assembly and a piston assembly, the shock absorber body including a cylinder and a piston rod, the outer end of the piston rod protrudes from the cylinder; the limit assembly is detachably mounted on the outside of the cylinder, the limit assembly includes a first limit block and a second limit block in a semicircular ring structure, the first limit block and the second limit block are detachably matched to be mounted on the outside of the cylinder; the piston assembly is mounted on at least part of the piston rod and at least part of the cylinder, and the end of the limit assembly close to the outer end is passed through the piston assembly to be interference connected with the piston assembly. By configuring the limiting assembly as a first limiting block and a second limiting block having two semicircular ring structures, the first limiting block and the second limiting block are detachably mounted on the outside of the cylinder, and one end of the limiting assembly close to the outer end of the piston rod is passed through the piston assembly to be interference-connected with the piston assembly. On the one hand, the assembly of the limiting assembly will not be affected by the outer diameter of the sealing end of the cylinder, and the need to rework structures such as the cylinder and the limiting assembly due to assembly failure of the shock absorber can be avoided, thereby reducing the probability of rework and saving assembly time. It can improve the production efficiency of the shock absorber and reduce the rework cost of the shock absorber. On the other hand, the first limiting block There is a gap between the limit block and the second limit block, which can better distribute the stress, reduce the risk of cracking of the limit assembly due to stress concentration, and extend the service life of the limit assembly; thirdly, by making the limit assembly and the piston assembly interference connected, the fit between the limit assembly and the piston assembly is tighter, which not only improves the sealing performance of the shock absorber, but also avoids the displacement of the limit assembly relative to the piston assembly when subjected to external force, so that the limit assembly can more accurately control the compression stroke of the piston assembly, thereby improving the limiting effect of the limit assembly on the compression stroke of the piston assembly, and further improving the shock absorption performance of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0016] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the shock absorber provided by the present application;

[0017] Figure 2 It is a structural schematic diagram of the limit assembly of the shock absorber provided in this application;

[0018] Figure 3 It is a schematic diagram of the exploded structure of the limit assembly of the shock absorber provided in this application;

[0019] Figure 4It is a schematic diagram of the exploded structure of another embodiment of the shock absorber provided in this application.

[0020] The accompanying drawings in the specific implementation manner are as follows:

[0021] Shock absorber 100, shock absorber body 10, cylinder 11, sealing end 111, piston rod 12, outer end 121, limit assembly 20, first limit block 21, first end face 211, second limit block 22, second end face 221, first connecting portion 231, second connecting portion 232, positioning hole 233, positioning pin 234, support plate 24, boss 25, first rib 251, second rib 252, piston assembly 30, tray 40, seal 50, tube body 61, sleeve body 62. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0024] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0026] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0027] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections via an intermediate heat exchange medium; internal connections between two components, or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0029] See also Figure 1 , Figure 1 This is a schematic diagram of the exploded structure of an embodiment of a shock absorber provided by this application. This application provides a shock absorber 100. Shock absorber 100 can be used in a vehicle. Shock absorber 100 can absorb and mitigate impacts from the road surface during vehicle operation, restoring the vehicle to a normal driving state, thereby improving the vehicle's ride smoothness and comfort.

[0030] The shock absorber 100 includes a shock absorber body 10, a limit assembly 20 and a piston assembly 30. The shock absorber body 10 includes a cylinder 11 and a piston rod 12, and the outer end 121 of the piston rod 12 protrudes from the cylinder 11. The cylinder 11 is a container, and the cylinder 11 contains liquid. The liquid can be hydraulic oil, hydraulic transmission oil, mineral oil or synthetic oil, etc., but is not limited to these. The piston rod 12 is movably arranged in the cylinder 11, and the outer end 121 of the piston rod 12 protrudes from the cylinder 11 from the sealed end 111 of the cylinder 11. When the vehicle encounters an impact on the road during driving, it drives the liquid in the cylinder 11 to flow, and consumes the impact energy through the viscous resistance of the liquid, thereby achieving a shock absorption effect.

[0031] The piston assembly 30 is mounted over at least a portion of the piston rod 12 and at least a portion of the cylinder 11. The piston rod 12 supports and guides the piston assembly 30. When the vehicle encounters a road impact during driving, the piston assembly 30 drives the piston rod 12 to move up and down along the axial direction of the cylinder 11, driving the fluid within the cylinder 11 to flow. By controlling the flow of fluid within the cylinder 11, a damping force is generated, thereby reducing vehicle vibration. The piston assembly 30 may be a hollow spring piston.

[0032] The limit assembly 20 is detachably mounted on the outside of the cylinder 11. The limit assembly 20 is used to limit the compression stroke of the piston assembly 30 to prevent the piston assembly 30 from being over-compressed, which not only protects the structure of the shock absorber 100 from damage but also improves the stability of the vehicle.

[0033] Please also refer to Figures 2 to 3 , Figure 2 It is a structural schematic diagram of the limit assembly of the shock absorber provided in this application; Figure 3 The figure is an exploded schematic diagram of the limiter assembly of the shock absorber provided herein. The limiter assembly 20 comprises a first limiter block 21 and a second limiter block 22 in a semicircular ring structure. The first limiter block 21 and the second limiter block 22 are detachably mounted on the outside of the cylinder 11. The end of the limiter assembly 20, proximal to the outer end 121 of the piston rod 12, is inserted into the piston assembly 30 to achieve an interference fit therewith.

[0034] During the assembly process of the limit assembly 20, the first limit block 21 and the second limit block 22 can be arranged relative to each other along the circumference of the cylinder 11, and the inner surfaces of the first limit block 21 and the second limit block 22 are both facing the cylinder 11, so that the two end surfaces of the first limit block 21 along the circumference of the cylinder 11 are respectively facing the two end surfaces of the second limit block 22 along the circumference of the cylinder 11. By detachably matching the two end surfaces of the first limit block 21 along the circumference of the cylinder 11 with the two end surfaces of the second limit block 22 along the circumference of the cylinder 11, the limit assembly 20 can be sleeved outside the cylinder 11.

[0035] By configuring the limiting assembly 20 as two first limiting blocks 21 and second limiting blocks 22 in a semicircular structure, the first limiting block 21 and the second limiting block 22 are detachably fitted on the outside of the cylinder 11, and one end of the limiting assembly 20 close to the outer end 121 of the piston rod 12 is passed through the piston assembly 30 to be interference-connected with the piston assembly 30. On the one hand, the assembly of the limiting assembly 20 will not be affected by the outer diameter of the sealing end 111 of the cylinder 11, and the need to repair the cylinder 11 and the limiting assembly 20 due to assembly failure of the shock absorber 100 can be avoided, thereby reducing the probability of repair and saving assembly time. It can improve the production efficiency of the shock absorber 100 while reducing the repair cost of the shock absorber 100; on the other hand, On the one hand, there is a gap between the first limit block 21 and the second limit block 22, which can better distribute the stress, reduce the risk of cracking of the limit assembly 20 due to stress concentration, and extend the service life of the limit assembly 20; on the third hand, by making the limit assembly 20 and the piston assembly 30 interference connected, the fit between the limit assembly 20 and the piston assembly 30 is tighter, which not only improves the sealing performance of the shock absorber 100, but also avoids the limit assembly 20 from offsetting relative to the piston assembly 30 when subjected to external force, so that the limit assembly 20 can more accurately control the compression stroke of the piston assembly 30, thereby improving the limiting effect of the limit assembly 20 on the compression stroke of the piston assembly 30, and further improving the shock absorption performance of the shock absorber 100.

[0036] In some embodiments, please refer to Figure 3 The first limiting block 21 includes two first end faces 211, and the two first end faces 211 are located at both ends of the first limiting block 21 close to the second limiting block 22. The second limiting block 22 includes two second end faces 221, and the two second end faces 221 are located at both ends of the second limiting block 22 close to the first limiting block 21. One of the first end face 211 of the first limiting block 21 close to the second limiting block 22 and the second end face 221 of the second limiting block 22 close to the first limiting block 21 is provided with a first connecting portion 231, and the other of the first end face 211 of the first limiting block 21 close to the second limiting block 22 and the second end face 221 of the second limiting block 22 close to the first limiting block 21 is provided with a second connecting portion 232 adapted to the first connecting portion 231, and the first connecting portion 231 and the second connecting portion 232 are detachably connected. The first end face 211 and the second end face 221 are arranged along the circumference of the cylinder 11.

[0037] If the first connection portion 231 is provided on the first end surface 211 of the first limiting block 21, the second connection portion 232 is provided on the second end surface 221 of the second limiting block 22; if the second connection portion 232 is provided on the first end surface 211 of the first limiting block 21, the first connection portion 231 is provided on the second end surface 221 of the second limiting block 22.

[0038] The first limit block 21 and the second limit block 22 are detachably connected through the first connecting part 231 and the second connecting part 232, which not only ensures that the installation of the limit assembly 20 will not be affected by the outer diameter of the sealing end 111 of the cylinder 11, but also makes it easier to disassemble the limit assembly 20, facilitates the maintenance and replacement of the limit assembly 20, and can effectively improve the flexibility of installation and disassembly of the limit assembly 20.

[0039] In some embodiments, one of the two first end surfaces 211 of the first limiting block 21 is provided with a first connecting portion 231, the other of the two first end surfaces 211 of the first limiting block 21 is provided with a second connecting portion 232, and the second end surface 221 of the two second end surfaces 221 of the second limiting block 22, which is close to the first end surface 211 of the first limiting block 21 provided with the first connecting portion 231, is provided with a second connecting portion 232. A first connecting portion 231 is provided on the second end face 221 of one end face 211. By arranging the first limit block 21 and the second limit block 22 relative to each other along the circumference of the cylinder 11, and with the inner surfaces of the first limit block 21 and the second limit block 22 facing the cylinder 11, and matching the first connecting portion 231 of the first limit block 21 with the second connecting portion 232 of the second limit block 22, and matching the second connecting portion 232 of the first limit block 21 with the first connecting portion 231 of the second limit block 22, the limiting assembly 20 can be sleeved on the outside of the cylinder 11.

[0040] In some embodiments, one of the first connection portion 231 and the second connection portion 232 is a positioning hole 233, and the other is a positioning pin 234. When installing the limit assembly 20, the position limiting assembly 20 can be installed by simply inserting the positioning pin 234 into the positioning hole 233. When removing the limit assembly 20, the position limiting assembly 20 can be removed by simply pulling the first limit block 21 away from the second limit block 22 and / or pulling the second limit block 22 away from the first limit block 21.

[0041] In some embodiments, one of the first connection portion 231 and the second connection portion 232 is a slot, and the other is a block. When installing the limit assembly 20, the block only needs to be inserted or locked into the slot so that the block and the slot are engaged to complete the installation of the limit assembly 20. When removing the limit assembly 20, the first limit block 21 needs to be pulled away from the second limit block 22 and / or the second limit block 22 needs to be pulled away from the first limit block 21 to complete the removal of the limit assembly 20.

[0042] The slot can be a rectangular slot and the block can be a rectangular block; or the slot can be a T-shaped slot and the block can be a T-shaped block; or the slot can be a dovetail slot and the block can be a dovetail block, but the present invention is not limited thereto. The structure of the slot and the block can be selected according to actual conditions.

[0043] In some embodiments, one of the first connecting portion 231 and the second connecting portion 232 is a first magnetic member, and the other is a second magnetic member. The first magnetic member and the second magnetic member can be embedded in the first end surface 211 and / or the second end surface 221. When installing the limit assembly 20, the first magnetic member and the second magnetic member are attracted to each other to complete the installation of the limit assembly 20. When disassembling the limit assembly 20, it is only necessary to pull the first limit block 21 away from the second limit block 22 and / or pull the second limit block 22 away from the first limit block 21 to overcome the attraction between the first magnetic member and the second magnetic member to complete the disassembly of the limit assembly 20.

[0044] In some embodiments, one of the first connecting portion 231 and the second connecting portion 232 is a first hook and loop accessory, and the other is a second hook and loop accessory. The position limiting assembly 20 can be installed by attaching the first hook and loop accessories to each other.

[0045] In some embodiments, please refer to Figures 2 to 3 The inner surfaces of the first and second limiting blocks 21 and 22 are both provided with first ribs 251, and the outer surfaces of the first and second limiting blocks 21 and 22 are both provided with second ribs 252. The first ribs 251 are in interference fit with the cylinder 11, and the second ribs 252 are in interference fit with the piston assembly 30.

[0046] The inner surfaces of the first limit block 21 and the second limit block 22 are the surfaces of the first limit block 21 and the second limit block 22 facing the cylinder 11. The outer surfaces of the first limit block 21 and the second limit block 22 are the surfaces of the first limit block 21 and the second limit block 22 facing away from the cylinder 11. A plurality of first ribs 251 may be provided on the inner surfaces of the first limit block 21 and the second limit block 22, and the plurality of first ribs 251 are arranged at intervals along the circumference of the cylinder 11 and extend along the axial direction of the cylinder 11. A plurality of second ribs 252 may be provided on the outer surfaces of the first limit block 21 and the second limit block 22, and the plurality of second ribs 252 are arranged at intervals along the circumference of the cylinder 11 and extend along the axial direction of the cylinder 11.

[0047] By arranging the first rib 251 on the inner surface of the first limit block 21 and the second limit block 22 so that the first rib 251 is interference connected with the cylinder 11, on the one hand, the limit assembly 20 can be firmly fixed outside the cylinder 11, reducing the risk of the limit assembly 20 loosening or displacement relative to the cylinder 11 during the operation of the shock absorber 100; on the other hand, it can also improve the sealing effect between the limit assembly 20 and the cylinder 11, reducing the risk of liquid in the cylinder 11 leaking from between the limit assembly 20 and the cylinder 11.

[0048] By arranging a second rib 252 on the outer surface of the first limit block 21 and the second limit block 22 so that the second rib 252 is interference connected with the piston assembly 30, on the one hand, the connection strength between the limit assembly 20 and the piston assembly 30 can be enhanced, so that the limit assembly 20 can better withstand vibration and impact force, and avoid limit failure caused by loosening of the limit assembly 20 or displacement relative to the piston assembly 30 during the operation of the shock absorber 100; on the other hand, the sealing performance between the limit assembly 20 and the piston assembly 30 can be improved, and the risk of liquid in the cylinder 11 leaking from between the limit assembly 20 and the piston assembly 30 can be reduced.

[0049] In some embodiments, please refer to Figures 2 to 3 The first limit block 21 and the second limit block 22 both include a support plate 24 and a boss 25 connected along the axial direction of the cylinder 11. The boss 25 is arranged at the end of the support plate 24 close to the outer end 121 of the piston rod 12 and is passed through the piston assembly 30; wherein, the first rib 251 and the second rib 252 are both arranged on the boss 25.

[0050] The boss 25 is cylindrical, and the support plate 24 is cylindrical or annular. The outer diameter of the boss 25 is smaller than that of the support plate 24. The boss 25 can be inserted into the piston assembly 30 and is interference-connected with the piston assembly 30 via the second rib 252. The end surface of the piston assembly 30 facing the stop assembly 20 abuts the support plate 24, further enhancing the connection strength and sealing effect between the stop assembly 20 and the piston assembly 30.

[0051] In some embodiments, the first connection portion 231 and the second connection portion 232 are disposed on the support plate 24 and / or the boss 25 .

[0052] Specifically, the first connection portion 231 and the second connection portion 232 can be arranged on the support plate 24; or the first connection portion 231 and the second connection portion 232 can be arranged on the boss 25; or the first connection portion 231 and the second connection portion 232 are arranged on the support plate 24 and the boss 25.

[0053] In some embodiments, please refer to Figure 1The shock absorber 100 further includes a tray 40 , which is sleeved outside the cylinder 11 and located at an end of the limiting assembly 20 away from the outer end 121 of the piston rod 12 , and is used to support the limiting assembly 20 .

[0054] The tray 40 supports the limit assembly 20, and the tray 40 can support and limit the limit assembly 20, and can prevent the limit assembly 20 from moving in a direction away from the piston assembly 30. The limit assembly 20 and the tray 40 cooperate with each other to further limit the compression stroke of the piston assembly 30 during the operation of the shock absorber 100, thereby further reducing the risk of structural damage to the shock absorber 100 due to unrestricted displacement of the piston assembly 30.

[0055] In some embodiments, please refer to Figure 1 The shock absorber 100 further includes a sealing member 50 , which is sleeved outside the cylinder 11 and located at the end of the limiting assembly 20 close to the outer end 121 .

[0056] The seal 50 can be an annular elastic seal. The seal 50 can be rubber, silicone, sponge or wool felt. Rubber, silicone, sponge and wool felt all have good elasticity and a long service life. The seal 50 is elastic. On the one hand, it can play a buffering role for the piston assembly 30 and the limit assembly 20 when the piston assembly 30 is compressed during the operation of the shock absorber 100, thereby reducing the damage caused by the interference between the piston assembly 30 and the limit assembly 20; on the other hand, it can enhance the sealing effect between the piston assembly 30 and the limit assembly 20, and further reduce the risk of the liquid in the cylinder 11 leaking from between the piston assembly 30 and the limit assembly 20.

[0057] Please also refer to Figure 4 , Figure 4 This is a schematic diagram of the exploded structure of another embodiment of the shock absorber provided herein. In some embodiments, the shock absorber 100 includes a tube 61 and a sleeve 62. The tube 61 is sleeved around the piston rod 12, and one end of the tube 61 facing the cylinder 11 is connected to the cylinder 11. The outer diameter of the tube 61 is greater than that of the cylinder 11. The sleeve 62 is sleeved around the tube 61.

[0058] The tube body 61 is disposed at the sealed end 111 of the cylinder body 11. The tube body 61 and the cylinder body 11 are connected by welding.

[0059] The inner surface of the sleeve 62 and the outer surface of the tube 61 are both provided with threads, and the sleeve 62 and the tube 61 are threadedly connected.

[0060] By welding the tube body 61 to the sealed end 111 of the cylinder 11, and by making the outer diameter of the tube body 61 larger than that of the cylinder 11, the sealing performance of the sealed end 111 of the cylinder 11 can be enhanced, preventing leakage of the liquid in the cylinder 11. In addition, the configuration of the cylinder 11 can also enhance the structural strength of the sealed end 111 of the cylinder 11, thereby improving the overall strength and reliability of the shock absorber 100. The sleeve 62 can provide a physical barrier for the tube body 61, protecting the tube body 61 from external impact or friction, thereby improving the sealing effect between the tube body 61 and the sealed end 111 of the cylinder 11.

[0061] The present application also provides a vehicle, which includes the shock absorber 100 according to any one of the above embodiments.

[0062] In the technical solutions of the embodiments of the present application, the specific structure of the shock absorber 100 refers to the above-mentioned embodiments. Since the vehicle provided in the present application adopts all the technical solutions of all the above-mentioned embodiments of the shock absorber 100, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A shock absorber, characterized in that: The shock absorber comprises: The shock absorber body comprises a cylinder and a piston rod, wherein the outer end of the piston rod protrudes from the cylinder; A limiting assembly is detachably mounted on the outside of the cylinder, wherein the limiting assembly includes a first limiting block and a second limiting block in a semicircular ring structure, wherein the first limiting block and the second limiting block are detachably matched to be mounted on the outside of the cylinder; The piston assembly is sleeved on at least part of the piston rod and at least part of the cylinder body, and one end of the limiting assembly close to the outer end is penetrated into the piston assembly to be interference connected with the piston assembly.

2. The shock absorber according to claim 1, characterized in that A first connecting portion is provided on one of a first end surface of the first limiting block close to the second limiting block and a second end surface of the second limiting block close to the first limiting block, and a second connecting portion adapted to the first connecting portion is provided on the other of the first end surface and the second end surface, and the first connecting portion and the second connecting portion are detachably connected; Wherein, the first end surface and the second end surface are arranged along the circumference of the cylinder.

3. The shock absorber according to claim 2, characterized in that One of the first connecting portion and the second connecting portion is a positioning hole, and the other is a positioning pin; or One of the first connecting portion and the second connecting portion is a slot, and the other is a block; or One of the first connecting portion and the second connecting portion is a first magnetic member, and the other is a second magnetic member; or One of the first connecting portion and the second connecting portion is a first Velcro accessory, and the other is a first Velcro accessory.

4. The shock absorber according to claim 2, characterized in that The inner surfaces of the first limiting block and the second limiting block are both provided with first ribs, and the outer surfaces of the first limiting block and the second limiting block are both provided with second ribs; Wherein, the first rib is in interference connection with the cylinder, and the second rib is in interference connection with the piston assembly.

5. The shock absorber according to claim 4, characterized in that The first limit block and the second limit block each include a support plate and a boss connected along the axial direction of the cylinder, the boss being provided at an end portion of the support plate close to the outer end and passing through the piston assembly; Wherein, the first rib and the second rib are both arranged on the boss.

6. The shock absorber according to claim 5, characterized in that The first connecting portion and the second connecting portion are arranged on the support plate and / or the boss.

7. The shock absorber according to any one of claims 1 to 6, characterized in that: The shock absorber further includes a tray, which is sleeved outside the cylinder and located at an end of the limiting assembly away from the outer end, and is used to support the limiting assembly.

8. The shock absorber according to any one of claims 1 to 6, characterized in that: The shock absorber further comprises a sealing member, which is sleeved outside the cylinder and located at an end portion of the limiting assembly close to the outer end.

9. The shock absorber according to claim 1, wherein: The shock absorber comprises: a tube body, sleeved outside the piston rod, and one end of the tube body facing the cylinder body is connected to the cylinder body, and the outer diameter of the tube body is larger than the outer diameter of the cylinder body; The sleeve body is sleeved outside the tube body.

10. A vehicle, characterized in that: The vehicle comprises the shock absorber according to any one of claims 1 to 9.

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