Upper supporting structure of shock absorber of electric off-road vehicle

Abstract

The invention relates to an upper supporting structure of a shock absorber of an electric off-road vehicle, which comprises a base body, the axial center of the base body is provided with a containing cavity, the radial center of the base body is provided with a mounting cavity in a penetrating manner, and the mounting cavity is communicated with the containing cavity; the lining assembly is arranged in the accommodating cavity and is coaxial with the mounting cavity; the separator is arranged on the contact surface of the bushing assembly and the base body and is fixedly connected with the base body; the threaded sleeve is arranged in the mounting cavity, fixedly connected with the base body and located on one side of the lining assembly; and the locking piece is arranged in the mounting cavity, penetrates through the bushing assembly and is fixedly connected with the screw sleeve. According to the shock absorber upper supporting structure, the rigid partition piece is arranged on the contact face of the lining assembly and the base body, a steel and steel matching mechanism is formed, the impact resistance of the base body is improved, the rigid threaded sleeve is arranged in the installation cavity, the locking piece is in threaded connection with the rigid threaded sleeve, and the overall structural strength of the shock absorber upper supporting structure is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to an upper support structure of a shock absorber of an electric off-road vehicle. Background Art

[0002] In vehicle engineering, especially in the design and manufacture of off-road vehicles, the performance and durability of shock absorbers are crucial. Shock absorbers are key components in the vehicle suspension system, their primary function being to absorb and attenuate the impact and vibration caused by road irregularities during driving, thereby improving ride comfort and vehicle handling stability. In mechanical design, especially for components like shock absorbers, which operate at high stresses and frequencies, structural design and material selection are crucial factors influencing their performance and durability.

[0003] Currently, existing shock absorber upper support structures typically consist of three components: a tower assembly, a bushing assembly, and large bolts. The tower assembly connects to the vehicle frame, while the bushing assembly connects to the shock absorber piston rod. The tower assembly and bushing assembly are fastened together by large bolts. For example, the aluminum tower has a slot on one side, and the inner tube of the bushing has serrations. During assembly, as the large bolts are tightened, the axial force generated by the serrations on the inner tube of the bushing decreases, forcing the serrations on the inner tube of the bushing into the tower, increasing friction between the two and supporting and securing the shock absorber.

[0004] However, existing shock absorber upper support structures present numerous problems. Electric off-road vehicles are experiencing rapid growth, but they carry heavy axle loads and operate in harsh conditions, subjecting shock absorbers to significant axial impact during operation. Due to the low hardness and impact resistance of aluminum towers, the indentations created by the bushing-to-tap mating are susceptible to deformation or damage, increasing the clearance and resulting in loosening. This can cause unwanted noise from the upper shock absorber, seriously impacting vehicle operation and ride comfort. Furthermore, the aluminum towers have inherent threads for bolts, which are weak and easily damaged by impact or repeated assembly and disassembly, leading to torque loosening of the bolts and further exacerbating the unwanted noise from the upper shock absorber. Using a steel tower would be approximately two-thirds heavier than an aluminum structure. This would increase the impact forces on the wheel rim, placing higher demands on shock absorber performance, the durability, and safety of the vehicle, and increase the risk of component wear and maintenance costs. Furthermore, the increased vehicle weight directly increases power consumption, resulting in a corresponding decrease in range, impacting vehicle usability and affordability. Summary of the Invention

[0005] An embodiment of the present application provides an upper support structure for an electric off-road vehicle shock absorber to solve the problems in the related art of the aluminum tower top in the existing upper support structure for an electric off-road vehicle shock absorber, such as poor impact resistance due to low hardness, easy loosening and abnormal noise, and low strength and easy damage of the aluminum thread due to the low hardness.

[0006] In a first aspect, an upper support structure for a shock absorber of an electric off-road vehicle is provided, comprising: The base body has an accommodating cavity at its axial center and an installation cavity running through its radial center, the installation cavity being in communication with the accommodating cavity; A bushing assembly is placed in the accommodating cavity and is coaxially arranged with the mounting cavity; a separator, arranged on a contact surface between the bushing assembly and the base, and fixedly connected to the base; A screw sleeve is placed in the installation cavity, fixedly connected to the base, and located on one side of the bushing assembly; The locking piece is placed in the installation cavity, passes through the bushing assembly and is fixedly connected to the screw sleeve.

[0007] In some embodiments, the contact surface between the bushing assembly and the separator is provided with staggered protruding teeth.

[0008] In some embodiments, the projection of the tooth on the bushing assembly is diamond-shaped, and the projection gradually shrinks at one end away from the bushing assembly.

[0009] In some embodiments, the separator comprises: - a sleeve, the sleeve being connected to the base body by interference fit, and the sleeve being arranged in the mounting cavity; - a partition plate, fixedly connected to one end of the sleeve close to the bushing assembly, the partition plate being provided with a through hole for the locking member to pass through; The contact surface between the base and the bushing assembly is provided with a groove for the partition plate to be embedded.

[0010] In some embodiments, a limiting plate is provided at the bottom of the partition plate; The bottom of the base is provided with a slot for the limiting plate to be embedded in.

[0011] In some embodiments, a boss is provided in the installation cavity, and a gasket is provided between the locking member and the boss.

[0012] In some embodiments, the sleeve and the boss are axially spaced apart.

[0013] In some embodiments, the contact surface between the sleeve and the base is rounded.

[0014] In some embodiments, the hardness of the separator, the screw sleeve, and the gasket is greater than that of the base.

[0015] In some embodiments, the base body is provided with a clearance hole; The limiting plate is square, and its corners are correspondingly embedded in the clearance holes of the base.

[0016] The present application provides an upper support structure for an electric off-road vehicle shock absorber. Compared to conventional structures, the steel bushing assembly and the aluminum substrate are prone to deformation or damage during vehicle operation due to the low hardness and weak impact resistance of the aluminum substrate. This application improves the substrate's impact resistance by providing a rigid separator at the contact surface between the bushing assembly and the substrate, forming a steel-on-steel matching mechanism. Compared to conventional structures in which a locking member is directly threadedly connected to the aluminum substrate, this application provides a rigid threaded sleeve within the mounting cavity, threading the locking member and the rigid threaded sleeve together. This enhances the locking ability of the locking member and the substrate, further improving the overall structural strength of the shock absorber's upper support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the structure of the upper support structure of the shock absorber of an electric off-road vehicle provided in an embodiment of the present application; Figure 2 A schematic plan view of the upper support structure of the shock absorber for an electric off-road vehicle provided in an embodiment of the present application; Figure 3 for Figure 2 Schematic diagram of the AA section structure; Figure 4 A schematic diagram of the structure of a separator of the upper support structure of the shock absorber of an electric off-road vehicle provided in an embodiment of the present application; Figure 5 A schematic diagram of the bushing assembly structure of the upper support structure of the shock absorber of an electric off-road vehicle provided in an embodiment of the present application; Figure 6 This is an enlarged schematic diagram of the local structure of the bushing assembly of the upper support structure of the electric off-road vehicle shock absorber provided in an embodiment of the present application.

[0019] In the figure: 1. base; 11. accommodating cavity; 12. mounting cavity; 13. groove; 14. slot; 15. boss; 16. clearance hole; 2. bushing assembly; 21. convex tooth; 3. separator; 31. sleeve; 32. separator plate; 33. through hole; 34. limiting plate; 4. screw sleeve; 5. locking piece; 6. gasket. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] An embodiment of the present application provides an upper support structure for an electric off-road vehicle shock absorber, which can solve the problems in the related art of the aluminum tower top in the existing upper support structure for an electric off-road vehicle shock absorber, such as poor impact resistance due to low hardness, easy loosening and abnormal noise, and low strength and easy damage of the aluminum thread due to the low hardness.

[0022] like Figures 1 to 6 As shown, an upper support structure of a shock absorber of an electric off-road vehicle comprises: The base 1 is an aluminum tower top base, which is used to be installed on a vehicle. The base 1 has an accommodating cavity 11 in its axial center and an installation cavity 12 running through its radial center. The installation cavity 12 includes a first installation cavity and a second installation cavity located on either side of the accommodating cavity 11. The first installation cavity and the second installation cavity are located in a straight line, and the installation cavity 12 is connected to the accommodating cavity 11. The bushing assembly 2 is made of a rigid material, is placed in the accommodating cavity 11, and is coaxially arranged with the mounting cavity 12; The separator 3 is made of a rigid material and is provided on the contact surface between the bushing assembly 2 and the base 1. It is fixedly connected to the base 1 and is used to separate the bushing assembly 2 from the base 1. The screw sleeve 4 is made of a rigid material, has a threaded inner wall, is placed in the mounting cavity 12, is fixedly connected to the base 1, and is located on one side of the bushing assembly 2; Locking member 5, a rigid bolt, is placed in mounting cavity 12 and passes through bushing assembly 2 to securely connect it to screw sleeve 4. A vertical mounting seam is provided in the center of base 1. Its function, through its expandable structural characteristics, is to provide deformation space during installation, facilitating the insertion of bushing assembly 2 into accommodating cavity 11. Once assembly is complete, bushing assembly 2 is locked with locking member 5, completing the assembly. The mounting seam effectively simplifies installation.

[0023] An embodiment of the present application provides an upper support structure for an electric off-road vehicle shock absorber. Compared with the traditional structure, when the steel bushing assembly 2 is in contact with the aluminum substrate 1, the aluminum substrate 1 has low hardness and weak impact resistance, which is prone to deformation or damage during vehicle driving, resulting in abnormal noise at the upper end of the shock absorber. The structure is not suitable for off-road vehicles and off-road driving. The present application provides a rigid partition 3 on the contact surface between the bushing assembly 2 and the substrate 1 to form a steel + steel matching mechanism, thereby improving the impact resistance of the substrate.

[0024] The embodiment of the present application provides an upper support structure for the shock absorber of an electric off-road vehicle. Compared with the traditional structure in which the locking member 5 is directly threadedly connected to the aluminum base 1, the aluminum thread has low strength. After multiple disassembly and assembly or durability, the aluminum thread is damaged and fails, the bolt torque decays, and the friction or impact of the mating surface causes abnormal noise at the upper end of the shock absorber, affecting the driving experience of the off-road vehicle. The present application arranges a rigid screw sleeve 4 in the installation cavity 12, so that the locking member 5 is threadedly connected to the rigid screw sleeve 4, thereby enhancing the locking ability of the locking member 5 and the base 1, and further improving the overall structural strength of the upper support structure of the shock absorber.

[0025] The embodiment of the present application provides an upper support structure for the shock absorber of an electric off-road vehicle. Compared with the traditional structure using a steel tower top base 1, the weight of the steel structure is about 2 / 3 heavier than that of the aluminum structure. On the one hand, the impact force on the wheel edge increases accordingly, which in turn puts higher requirements on the performance of the shock absorber and the durability and safety of the entire vehicle, increasing the risk of loss and maintenance costs of related components; on the other hand, the increase in the weight of the entire vehicle directly leads to an increase in power consumption, which reduces the vehicle's cruising range accordingly, affecting the vehicle's ease of use and economy. The present application adopts an aluminum tower top base 1, sets a partition 3 on the contact surface between the aluminum tower top base 1 and the rigid bushing assembly 2, and sets a rigid screw sleeve 4 in the installation cavity 12, so that the locking member 5 is threadedly connected to the rigid screw sleeve 4, reducing the overall weight while ensuring the connection strength.

[0026] Furthermore, the hardness of the separator 3 , the screw sleeve 4 , and the gasket 6 is greater than that of the base 1 .

[0027] In this embodiment, the base 1 is made of aluminum, and its low density and light weight are used to achieve lightweighting of the entire vehicle. The bushing assembly 2, separator 3, screw sleeve 4, and locking member 5 are all made of rigid materials, such as high-strength alloy steel, stainless steel or cemented carbide, to ensure that their strength is higher than that of the base 1 material.

[0028] In some optional embodiments, the material selection range is not limited to the above materials. The core requirement is that the hardness of the separator 3, the screw sleeve 4, and the gasket 6 must be greater than that of the base 1 to enhance the connection stiffness between the structures.

[0029] In this embodiment, the base 1 is cylindrical and has evenly arranged mounting holes to reduce local stress concentration.

[0030] In some optional embodiments, the base 1 may also be square.

[0031] Furthermore, the contact surface between the bushing assembly 2 and the separator 3 is provided with staggered protruding teeth 21 .

[0032] like Figure 5As shown, the bushing assembly 2 includes a bushing inner tube and a bushing outer tube, a rubber bushing is arranged between the bushing inner tube and the bushing outer tube, and convex teeth are arranged on the contact surface between the bushing inner tube and the separator 3, which can enhance the friction coefficient, improve the friction capacity of the mating surface, and improve the impact resistance of the mating surface position. When the upper support is impacted, the mating surface will not slide.

[0033] Furthermore, the projection surface of the convex tooth 21 on the bushing assembly 2 is rhombus-shaped, and the convex tooth 21 gradually shrinks at one end away from the bushing assembly 2 , that is, the cross section of the convex tooth 21 is trapezoidal.

[0034] like Figure 6 As shown, the present invention employs a diamond-shaped structure with the protruding teeth 21 arranged in an array around the center of the bushing assembly 2. One set of opposing sides of the diamond shape is approximately parallel to the radial direction of the bushing assembly 2, while the other set of opposing sides is approximately parallel to the circumference of the bushing assembly 2, forming a cross-shaped arrangement. Compared to conventional structures, where the protruding teeth 21 are point-shaped or trapezoidal, the engagement between the protruding points and the separator plate is point contact, resulting in smaller stress points and increased wear, which can easily cause the bushing to slip and make noise during vehicle operation. Trapezoidal protruding teeth, on the other hand, lack effective orthogonal retaining capability when subjected to multi-directional loads because their tooth profile extends in a single direction (e.g., parallel only to the radial or circumferential direction), making them prone to slipping under load. In the present invention, the cross-shaped diamond-shaped protruding teeth 21 provide multi-angle retaining in the Z, X, and Y directions. When the shock absorber is subjected to vertical forces, the horizontal diagonals engage and retain, preventing vertical displacement. When the shock absorber is subjected to horizontal forces, the vertical diagonals retain, suppressing horizontal displacement. Compared with the traditional structure, it improves the anti-slip ability and reduces the occurrence rate of abnormal noise and wear rate of the bushing.

[0035] Furthermore, the separator 3 includes: - a sleeve 31 , which is connected to the base body 1 by interference fit and is arranged in the mounting cavity 12 ; - A partition plate 32 , fixedly connected to one end of the sleeve 31 close to the bushing assembly 2 , and the partition plate 32 is provided with a through hole 33 for the locking member 5 to pass through.

[0036] Sleeve 31 is pressed into mounting cavity 12 of base 1 with an interference fit. Leveraging the clamping force generated by metal interference deformation, a high-strength mechanical connection with base 1 is achieved without the need for additional gluing or welding. Separator plate 32 is vertically fixed to the end of sleeve 31 near bushing assembly 2. It is generally circular or square in shape, covering the contact surface between bushing assembly and base. The plate has a through-hole 33 adapted for locking member 5. Separator plate 32 utilizes a large-area design. When bushing assembly 2 is subjected to off-road impact loads, the force-bearing area of separator 3 is increased, effectively preventing deformation and cracking of aluminum base 1 due to stress concentration, thereby increasing the impact life of base 1.

[0037] Furthermore, the contact surface between the base body 1 and the bushing assembly 2 is provided with a groove 13 for the partition plate 32 to be embedded in, and the partition plate 32 and the groove 13 are interference fit.

[0038] In this embodiment, the partition plate 32 is square and the groove 13 is also square, which is convenient for limiting the sleeve 31 and inhibiting the sleeve 31 from rotating in the circumferential direction.

[0039] Further, such as Figure 3 and Figure 4 As shown, a limiting plate 34 is provided at the bottom of the partition plate 32; A slot 14 is provided at the bottom of the base 1 for the limiting plate 34 to be inserted into, and the limiting plate 34 is interference fit with the slot 14 .

[0040] A limit plate 34 is provided at the bottom of the partition plate 32 to achieve full limit with the aluminum tower top. When the shock absorber is subjected to vertical force, the limit plate 34 decomposes the force of the sleeve 31, increases the Z-direction limit, realizes the steel + steel matching structure, improves the strength of the matching surface between the aluminum tower top and the inner tube of the bushing, and enhances the support seat's Z-direction impact resistance and wear resistance.

[0041] Furthermore, a boss 15 is provided in the installation cavity 12 , and a gasket 6 is provided between the locking member 5 and the boss 15 to disperse the locking pressure by increasing the contact area and prevent the rigid locking member 5 from directly wearing the aluminum boss 15 .

[0042] The sleeve 31 and the boss 15 are axially spaced apart to avoid direct contact and friction between the rigid sleeve 31 and the aluminum boss 15 .

[0043] Furthermore, the contact surface between the sleeve 31 and the base 1 is rounded.

[0044] The rounded corners of sleeve 31 eliminate sources of stress concentration. When subjected to radial impact loads, the rounded corners reduce peak contact stress, minimizing the risk of microcrack initiation compared to traditional right-angle designs. While maintaining the strength of the interference fit, the rounded corners smooth the stress transfer path, effectively preventing wear and fatigue cracking of the substrate 1 caused by stress concentration at sharp corners, thereby extending the lifespan of the mating between separator 3 and substrate 1.

[0045] Further, such as Figure 2 As shown, the base 1 is provided with a clearance hole 16; the partition plate 32 is square, and its corners correspond to the clearance holes 16 embedded in the base 1. The gap design avoids rigid friction between the steel partition plate 32 and the aluminum base 1, reducing the wear of the contact surface.

[0046] The present application also provides an electric off-road vehicle. Due to the large vehicle mass and concentrated axle load distribution, electric off-road vehicles are often subjected to extremely harsh working conditions such as flying slopes and high-intensity off-road bumps, causing the shock absorption system to withstand axial impact forces far exceeding conventional designs during dynamic driving. At the moment of landing on the flying slope, the vertical acceleration of the vehicle increases sharply, and the shock absorber needs to instantly absorb and disperse the huge kinetic energy. The impact force generated is directly transmitted to the aluminum tower top and bushing matching mechanism through the piston rod. Due to the limited strength and toughness of the aluminum material itself, under the action of high-frequency and high-amplitude impact loads, the meshing surface is very prone to plastic deformation. As the use time increases, the mating surface gradually wears, tears, and even partially breaks, causing the matching gap to continue to expand. At the same time, the aluminum tower top thread is difficult to withstand the alternating stress caused by continuous impact, and the mechanical damage caused by multiple disassembly and assembly during vehicle maintenance causes the thread profile to be gradually destroyed, resulting in a decrease in the bolt preload and a rapid decay of the torque. When the connection parts become loose, the relative displacement between components increases, eventually causing friction or collision noises, which not only affects driving comfort, but may also reduce the vehicle's driving stability and handling safety, and even threaten the reliability of the entire vehicle structure.

[0047] The electric off-road vehicle provided in this application includes the above-mentioned support structure, specifically including: The base 1 is an aluminum tower top base, fixed to the vehicle frame by bolts. A receiving cavity 11 is defined in the axial center thereof, and a mounting cavity 12 is defined in the radial center thereof. The mounting cavity 12 includes a first mounting cavity and a second mounting cavity located on either side of the mounting cavity 11. The first mounting cavity and the second mounting cavity are located in a straight line, and the mounting cavity 12 is connected to the mounting cavity 11. The separator 3 is made of a rigid material and is provided at the contact surface between the bushing assembly 2 and the base 1. It is fixedly connected to the base 1 and is used to separate the bushing assembly 2 from the base 1. It is pressed into the aluminum tower top base 1 through an interference fit. The bushing assembly 2 is made of a rigid material, is placed in the accommodating cavity 11, and is coaxially arranged with the mounting cavity 12; The screw sleeve 4 is made of a rigid material, is 35 mm long, has a threaded inner wall, is placed in the mounting cavity 12, is fixedly connected to the base 1, and is located on one side of the bushing assembly 2; Locking member 5, made of a rigid material, is placed within mounting cavity 12 and passes through bushing assembly 2 to securely connect it to screw sleeve 4. A vertical mounting seam is provided in the center of base 1. Its function, through its expandable structural characteristics, is to provide deformation space during installation, facilitating insertion of bushing assembly 2 into accommodating cavity 11. Once assembly is complete, bushing assembly 2 is locked with locking member 5, completing the assembly. This mounting seam effectively simplifies installation.

[0048] The electric off-road vehicle provided in the present application realizes full limit by interference fit between the sleeve 31, the partition plate 32, and the limit plate 34 of the separator 3 and the base 1. In particular, a Z-direction limit is added to realize a steel + steel matching structure, thereby improving the strength of the matching surface between the aluminum tower top base 1 and the inner tube of the bushing, and enhancing the impact resistance and wear resistance of the support seat in the Z direction. The inner tube end surface of the upper support bushing assembly 2 is increased with cross-shaped diamond-shaped convex teeth 21. The cross-shaped diamond-shaped convex teeth can limit the position at multiple angles in the Z, X, and Y directions, increase the friction coefficient of the mating surface, improve the friction force capacity of the mating surface, and improve the impact resistance of the mating surface position. When the upper support is impacted, the mating surface will not slide; A 35mm long wire thread sleeve 4 is added to the threaded end of the upper supporting aluminum tower top base 1 to realize the steel connection structure between the aluminum tower top base 1 and the locking part 5, increase the locking ability of the bolt, increase the tightening torque between the aluminum tower top base 1 and the bolt through the wire thread, and increase the clamping force of the bushing.

[0049] In the description of this application, it should be noted that the terms "upper" and "lower" 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 this 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 this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0051] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An upper support structure for a shock absorber of an electric off-road vehicle, characterized in that: It includes: A base body (1) is provided with a receiving cavity (101) at its axial center, and a mounting cavity (102) is provided through its radial center, wherein the mounting cavity (102) is in communication with the receiving cavity (101); A bushing assembly (2) is placed in the accommodating cavity (101) and is coaxially arranged with the mounting cavity (102); A separator (3) is provided on the contact surface between the bushing assembly (2) and the base body (1), and is fixedly connected to the base body (1); A screw sleeve (4) is placed in the installation cavity (102), fixedly connected to the base (1), and located on one side of the bushing assembly (2); A locking member (5) is placed in the installation cavity (102), passes through the bushing assembly (2) and is fixedly connected to the screw sleeve (4).

2. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 1, characterized in that: The contact surfaces of the bushing assembly (2) and the separator (3) are provided with staggered convex teeth (21).

3. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 2, characterized in that: The projection of the convex tooth (21) on the bushing assembly (2) is rhombus-shaped, and the convex tooth gradually shrinks at one end away from the bushing assembly (2).

4. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 1, characterized in that: The separator (3) comprises: - a sleeve (31), the sleeve (31) being connected to the base body (1) by interference fit, and the sleeve (31) being arranged in the mounting cavity (12); - a partition plate (32), fixedly connected to one end of the sleeve (31) close to the bushing assembly (2), the partition plate (32) being provided with a through hole (33) for the locking member (5) to pass through; The contact surface between the base body (1) and the bushing assembly (2) is provided with a groove (13) for the partition plate (32) to be embedded.

5. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 4, characterized in that: A limiting plate (34) is provided at the bottom of the partition plate (32); The bottom of the base (1) is provided with a slot (14) for the limiting plate (34) to be embedded.

6. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 4, characterized in that: A boss (15) is provided in the installation cavity (12), and a gasket (6) is provided between the locking member (5) and the boss (15).

7. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 6, characterized in that: The sleeve (31) and the boss (15) are axially spaced apart.

8. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 6, characterized in that: The contact surface between the sleeve (31) and the base body (1) is rounded.

9. The upper support structure for the shock absorber of an electric off-road vehicle according to claim 6, characterized in that: The hardness of the separator (3), the screw sleeve (4), and the gasket (6) is greater than that of the base (1).

10. The upper support structure of the shock absorber of the electric off-road vehicle according to claim 5, characterized in that: The base body (1) is provided with a clearance hole (16); The limiting plate (34) is square, and its corners are correspondingly embedded in the clearance holes (16) of the base (1).

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