Suspension assembly of vehicle and vehicle

By setting up the anti -pine parts embedded in the junction on the connector of the vehicle suspension component, the problem of not firm connection between the hub bearing and the steering joint is solved, and the safety of connecting reliability and the safety of the vehicle is improved.

CN222387933UActive Publication Date: 2025-01-24ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202420278406.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-05
Publication Date
2025-01-24
Estimated Expiration
2034-02-05

AI Technical Summary

Technical Problem

In the prior art, the connection between the hub bearing and the steering knuckle is imperfect due to production and assembly tolerances, the contact surface is small, and the bolts are prone to loosening or falling off, which reduces the connection reliability of the suspension system and affects the safety of the vehicle.

Method used

Design a vehicle suspension component, set the anti -pine department by setting up the anti -pine portion at the end of the head of the connector, the anti -pine can embed the steering joint, forming a mechanical stop structure to prevent the connector from the pine, thereby increasing the steering knight and the steering joint and the The connection reliability of the wheel bearing.

Benefits of technology

Through the embedded steering section, the probability of loosening or falling from the connector is reduced, the connection reliability of the hub bearings and the steering joint is improved, and the overall safety of the vehicle is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a suspension assembly of a vehicle and the vehicle. The suspension assembly of the vehicle comprises a hub bearing and a steering knuckle. The connecting piece penetrates through the steering knuckle and is in threaded connection with the hub bearing, so that the steering knuckle and the hub bearing are assembled; the connecting piece comprises a head part and a rod part which are connected, one end, close to the rod part, of the head part is provided with an anti-loosening part, and at least part of the anti-loosening part can be embedded into the steering knuckle. Therefore, the end, close to the rod part, of the head part is provided with the anti-loosening part, after the steering knuckle and the hub bearing are assembled through the connecting piece, at least part of the anti-loosening part can be embedded into the steering knuckle, and when the connecting piece tends to be unscrewed (rotate anticlockwise), the anti-loosening part can interfere with the steering knuckle to achieve the anti-loosening effect; therefore, the probability that the connecting piece is loosened and even falls off can be reduced, the connection reliability of the hub bearing and the steering knuckle can be improved, and the safety of a vehicle can be improved.
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Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a suspension component of a vehicle and a vehicle having the suspension component of the vehicle. Background Art

[0002] In the related art, the wheel hub bearing and the steering knuckle are important components of the suspension system, and their connection is generally connected by bolts. However, in actual production and assembly, due to the inevitable production tolerance and assembly tolerance, the contact surface between the steering knuckle and the bolt is difficult to perfectly match, the friction between the bolt and the steering knuckle is small, and the bolt is easy to loosen or even fall off, resulting in a decrease in the connection reliability of the wheel hub bearing and the steering knuckle, affecting the overall safety of the vehicle. 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, one purpose of the utility model is to provide a suspension assembly for a vehicle, wherein the connection reliability of the wheel hub bearing and the steering knuckle of the suspension assembly is high.

[0004] The utility model further proposes a suspension assembly of a vehicle, comprising: a wheel hub bearing and a steering knuckle; a connecting piece, the connecting piece passes through the steering knuckle and is threadedly connected to the wheel hub bearing to assemble the steering knuckle and the wheel hub bearing; the connecting piece comprises a connected head and a rod, the head has an anti-loosening portion at one end close to the rod, and at least a part of the anti-loosening portion can be embedded in the steering knuckle.

[0005] According to the suspension assembly of the vehicle in the embodiment of the present application, the head end close to the rod portion has an anti-loosening portion. After the steering knuckle and the wheel hub bearing are assembled through the connecting piece, at least part of the anti-loosening portion can be embedded in the steering knuckle. When the connecting piece tends to loosen (rotate counterclockwise), the anti-loosening portion can interfere with the steering knuckle to play an anti-loosening role, thereby reducing the probability of the connecting piece loosening or even falling off, which is beneficial to improving the connection reliability of the wheel hub bearing and the steering knuckle, and is beneficial to improving the safety of the vehicle.

[0006] In some examples of the present invention, there are multiple anti-loosening parts, and the multiple anti-loosening parts are arranged in sequence along the circumferential direction of the connecting piece.

[0007] In some examples of the present invention, the anti-loosening portion has a first surface, and along the circumferential direction of the connecting piece, the first surface gradually extends outward.

[0008] In some examples of the present invention, the anti-loosening portion has a second surface, the second surface is connected to the first surface of the adjacent anti-loosening portion, and the angle between the second surface and the first surface of the adjacent anti-loosening portion is less than or equal to ninety degrees.

[0009] In some examples of the present invention, the second surface is connected to the first surface, and a connection point between the second surface and the first surface is located on an outer surface of the sphere.

[0010] In some examples of the present invention, both the first surface and the second surface are arc surfaces.

[0011] In some examples of the present invention, an end of the head away from the rod portion has a recessed portion.

[0012] In some examples of the present invention, the rod has an external thread, the steering knuckle has a matching hole, the wheel hub bearing has a threaded hole corresponding to the matching hole, the rod passes through the matching hole and is assembled with the corresponding threaded hole, and a locking glue is arranged between the external thread and the threaded hole.

[0013] In some examples of the present invention, at least a portion of the outer surface of the connector has an anti-corrosion layer.

[0014] The vehicle according to the utility model comprises the suspension assembly of the vehicle mentioned above.

[0015] 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

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of a suspension assembly according to an embodiment of the utility model;

[0018] Figure 2 is a schematic diagram of a connecting piece according to an embodiment of the utility model;

[0019] Figure 3 is a schematic diagram of a connecting member according to an embodiment of the utility model from another angle;

[0020] Figure 4 It is a partially enlarged schematic diagram of the connecting piece according to the embodiment of the utility model.

[0021] Reference numerals:

[0022] Suspension assembly 100;

[0023] Connecting member 1; wheel hub bearing 2; steering knuckle 3; head 4; rod 5; recessed portion 6; anti-loosening portion 7; first surface 8; second surface 9; threaded hole 10. DETAILED DESCRIPTION

[0024] 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Reference below Figure 1-Figure 4 A suspension assembly 100 for a vehicle according to an embodiment of the present invention is described.

[0026] like Figure 1-Figure 4 As shown, the suspension assembly 100 according to the embodiment of the utility model includes: a wheel hub bearing 2, a steering knuckle 3 and a connecting member 1.

[0027] The connecting member 1 passes through the steering knuckle 3 and is screwed to the wheel hub bearing 2 to assemble the steering knuckle 3 and the wheel hub bearing 2. The connecting member 1 includes a connected head 4 and a rod 5. The head 4 has an anti-loosening portion 7 at one end close to the rod 5. At least part of the anti-loosening portion 7 can be embedded in the steering knuckle 3.

[0028] As some embodiments of this application, refer to Figure 1 As shown, the steering knuckle 3 may have a matching hole, which may be configured as a through hole, and the wheel hub bearing 2 may have a threaded hole 10, which may be arranged corresponding to the matching hole, and a part of the structure of the connecting member 1 may be inserted into the matching hole and screwed with the internal thread of the threaded hole 10 to assemble the steering knuckle 3 and the wheel hub bearing 2 together. Specifically, the rod 5 of the connecting member 1 may be inserted into the matching hole and screwed with the internal thread of the threaded hole 10 to assemble the steering knuckle 3 and the wheel hub bearing 2 together.

[0029] The head 4 has an anti-loosening portion 7 at one end close to the rod 5. During the process of assembling the steering knuckle 3 and the wheel hub bearing 2 through the connector 1, the anti-loosening portion 7 located at the head 4 can be gradually embedded in the steering knuckle 3. After the steering knuckle 3 and the wheel hub bearing 2 are assembled together, at least part of the anti-loosening portion 7 can be embedded in the steering knuckle 3. As some embodiments of the present application, after the steering knuckle 3 and the wheel hub bearing 2 are assembled together, part of the anti-loosening portion 7 can be embedded in the steering knuckle 3, or, after the steering knuckle 3 and the wheel hub bearing 2 are assembled together, the entire structure of the anti-loosening portion 7 can be embedded in the steering knuckle 3.

[0030] As some embodiments of the present application, the rod portion 5 of the connecting member 1 has an external thread, and the external thread of the rod portion 5 can be threadedly connected with the internal thread of the threaded hole 10 of the wheel hub bearing 2. When the connecting member 1 rotates clockwise, the connecting member 1 gradually moves closer to the steering knuckle 3. After the connecting member 1 moves to the anti-loosening portion 7 and contacts the steering knuckle 3, the connecting member 1 continues to rotate clockwise, and the anti-loosening portion 7 can gradually embed into the steering knuckle 3. After the steering knuckle 3 and the wheel hub bearing 2 are assembled together, at least part of the anti-loosening portion 7 can be embedded in the steering knuckle 3. When the connecting member 1 has a tendency to loosen (rotate counterclockwise), since at least part of the anti-loosening portion 7 is embedded in the steering knuckle 3, the steering knuckle 3 will interfere with the anti-loosening portion 7. That is to say, the anti-loosening portion 7 can serve as a mechanical stop structure (anti-loosening structure), thereby reducing the probability of the connecting member 1 loosening or even falling off.

[0031] As some embodiments of the present application, the hardness of the anti-loosening portion 7 of the connector 1 is greater than the hardness of the steering knuckle 3, so that at least a portion of the anti-loosening portion 7 can be smoothly embedded in the steering knuckle 3. As some embodiments of the present application, the steering knuckle 3 can be made of aluminum alloy, and the connector 1 can be made of cold heading steel, which has been quenched and tempered, and the performance level can be implemented according to but not limited to 10.9 or 12.9.

[0032] As some embodiments of the present application, the connector 1 can be an integrally formed part, that is, the head 4 and the rod 5 can be integrally formed. The integrally formed part has good structural strength. Such a setting can reduce the probability of tearing of the head 4 and the rod 5, and can improve the reliability of the connector 1.

[0033] Therefore, by providing an anti-loosening portion 7 at one end of the head 4 close to the rod 5, after the steering knuckle 3 and the wheel hub bearing 2 are assembled through the connecting piece 1, at least a portion of the anti-loosening portion 7 can be embedded in the steering knuckle 3. When the connecting piece 1 tends to loosen (rotate counterclockwise), the anti-loosening portion 7 can interfere with the steering knuckle 3 to play an anti-loosening role, thereby reducing the probability of the connecting piece 1 loosening or even falling off, which is beneficial to improving the connection reliability of the wheel hub bearing 2 and the steering knuckle 3, and is beneficial to improving the safety of the vehicle.

[0034] Furthermore, by providing an anti-loosening portion 7 at one end of the head portion 4 close to the rod portion 5, after the steering knuckle 3 and the wheel hub bearing 2 are assembled, at least a portion of the anti-loosening portion 7 can be embedded in the steering knuckle 3, thereby reducing the influence of the processing error of the connecting member 1 on the connection between the steering knuckle 3 and the wheel hub bearing 2.

[0035] In some embodiments of the present invention, there may be multiple anti-loosening parts 7 , and the multiple anti-loosening parts 7 may be arranged in sequence along the circumferential direction of the connecting member 1 .

[0036] As some embodiments of the present application, the number of anti-loosening parts 7 may be but not limited to two, three, four, etc. A plurality of anti-loosening parts 7 may be arranged in sequence along the circumferential direction of the connector 1 (i.e., the rotation direction of the connector 1). As some embodiments of the present application, among the plurality of anti-loosening parts 7, a gap may be left between any two adjacent anti-loosening parts 7, or, among the plurality of anti-loosening parts 7, any two adjacent anti-loosening parts 7 are connected and arranged. By providing a plurality of anti-loosening parts 7, the probability of the connector 1 loosening or even falling off can be further reduced, which is conducive to further improving the connection reliability of the hub bearing 2 and the steering knuckle 3.

[0037] In some embodiments of the present invention, Figure 4 As shown, the anti-loosening portion 7 has a first surface 8, and along the circumferential direction of the connecting member 1, the first surface 8 gradually extends outward.

[0038] It should be noted that the first surface 8 can be gradually extended outward along the circumferential direction of the connector 1 and along the counterclockwise rotation direction (loosening direction) of the connector 1, which can be understood as that the first surface 8 can gradually move away from the head 4 along the counterclockwise rotation direction of the connector 1. In this way, when the connector 1 rotates clockwise (tightening direction) to assemble the steering knuckle 3 and the wheel hub bearing 2 together, the anti-loosening portion 7 will not generate rotation resistance, thereby reducing the difficulty of installation and improving the installation efficiency.

[0039] In some embodiments of the present invention, Figure 4 As shown, the anti-loosening portion 7 has a second surface 9, and the second surface 9 can be connected to the first surface 8 of the adjacent anti-loosening portion 7, and the angle between the second surface 9 and the first surface 8 of the adjacent anti-loosening portion 7 can be less than or equal to ninety degrees.

[0040] As some embodiments of the present application, the anti-loosening part 7 also has a second surface 9, which can extend outward along the rotation direction of the connecting member 1, and the second surface 9 is connected to the first surface 8 of the adjacent anti-loosening part 7, that is, any two adjacent anti-loosening parts 7 are connected and arranged, and, among two adjacent anti-loosening parts 7, the second surface 9 of one anti-loosening part 7 is connected to the first surface 8 of the other anti-loosening part 7.

[0041] The angle between the second surface 9 of the anti-loosening portion 7 and the first surface 8 of the adjacent anti-loosening portion 7 is less than or equal to ninety degrees. For example, the angle between the second surface 9 of the anti-loosening portion 7 and the first surface 8 of the adjacent anti-loosening portion 7 can be, but is not limited to, 30 degrees, 45 degrees, 60 degrees, 75 degrees, 90 degrees, etc. By making the angle between the second surface 9 of the anti-loosening portion 7 and the first surface 8 of the adjacent anti-loosening portion 7 less than or equal to ninety degrees, when the connector 1 has a tendency to loosen (rotate counterclockwise), the anti-loosening portion 7 can reliably interfere with the steering knuckle 3 to play an anti-loosening role, thereby further reducing the probability of the connector 1 loosening or even falling off.

[0042] In some embodiments of the present invention, Figure 4 As shown, the second surface 9 can be connected to the first surface 8, and the connection between the second surface 9 and the first surface 8 can be located on the outer surface of the sphere. The first surface 8 and the second surface 9 of the same anti-loosening part 7 can be connected, and the connection between the first surface 8 and the second surface 9 of the same anti-loosening part 7 can be located on the outer surface of the sphere. As some embodiments of the present application, the second surface 9 of the anti-loosening part 7 can have two opposite ends, one end of which can be connected to the first surface 8 of the same anti-loosening part 7, and the other end can be connected to the first surface 8 of the adjacent anti-loosening part 7.

[0043] That is to say, in some embodiments of the present application, among the plurality of anti-loosening parts 7, the first surface 8 of any anti-loosening part 7 can be connected end to end with the second surface 9 of the adjacent anti-loosening part 7 and arranged in sequence. For example, among two adjacent anti-loosening parts 7, the first surface 8 of the first anti-loosening part 7 is connected to the second surface 9 of the second anti-loosening part 7, and at the same time, the second surface 9 of the second anti-loosening part 7 is connected to the first surface 8 of the second anti-loosening part 7. In short, the second surface 9 of the first anti-loosening part 7 is connected between the first surface 8 of the first anti-loosening part 7 and the first surface 8 of the second anti-loosening part 7.

[0044] By connecting the first surface 8 and the second surface 9 of the same anti-loosening part 7, the embedding amount of the anti-loosening part 7 into the steering knuckle 3 can be increased, the anti-loosening effect of the anti-loosening part 7 can be effectively increased, and the connection between the steering knuckle 3 and the wheel hub bearing 2 can be more stable.

[0045] Furthermore, by locating the first surface 8 and the second surface 9 of the same anti-loosening portion 7 on the outer surface of the sphere, a relatively large movement gap can be provided on the inner side of the steering knuckle 3, thereby meeting the requirement of a more compact tightening space. At the same time, under the same radial assembly dimensions, a larger friction radius can be provided, thereby increasing the preload force of the connector 1.

[0046] In some embodiments of the present invention, both the first surface 8 and the second surface 9 are arc surfaces.

[0047] That is, the first surface 8 is a curved surface, and the second surface 9 is also a curved surface, that is, both surfaces are curved surfaces. This arrangement can make the first surface 8 and the second surface 9 have a curved surface structure, which can provide a larger friction radius under the same radial assembly size, and can increase the preload force of the connector 1.

[0048] As some embodiments of the present application, the anti-loosening portion 7 can be configured as straight teeth or arc-shaped teeth.

[0049] The overall outer structure of the anti-loosening part 7 can be configured as a straight tooth structure, or the overall outer structure of the anti-loosening part 7 can be configured as an arc-shaped tooth structure. This arrangement allows the anti-loosening part 7 to have a variety of structural forms, so that the structural form of the anti-loosening part 7 can be selected according to actual needs, increasing the selectivity of the anti-loosening part 7 structure.

[0050] In some embodiments of the present invention, Figure 3 As shown, one end of the head 4 away from the stem 5 may have a recessed portion 6 .

[0051] It is understandable that the head 4 has two opposite ends, one end of the head 4 can be connected to the rod 5, and the other end of the head 4 can have a recessed portion 6, and the recessed portion 6 can be constructed as a groove structure that is recessed toward the head 4. The recessed portion 6 can cooperate with a screw, and the screw can be constructed as but not limited to a wrench. As some embodiments of the present application, the cross-section of the recessed portion 6 can be a polygon, such as but not limited to a hexagon, an octagon, a dodecagon, etc. By cooperating with the screw and the recess 6, the screw can be used to screw the connector 1 in a very small operating space, which can facilitate the assembly personnel to perform assembly operations.

[0052] In some embodiments of the present invention, Figure 1 As shown, the rod 5 can have an external thread, the steering knuckle 3 can have a matching hole, the wheel hub bearing 2 can have a threaded hole 10 corresponding to the matching hole, the rod 5 can pass through the matching hole and be assembled with the corresponding threaded hole 10, and a locking glue can be provided between the external thread and the threaded hole 10.

[0053] When the hub bearing 2 and the steering knuckle 3 need to be installed and fixed, the connecting member 1 is needed to fix the two. The rod 5 of the connecting member 1 has an external thread, and the hub bearing 2 has a threaded hole 10 that can be threaded with the external thread of the rod 5, and the steering knuckle 3 has a matching hole corresponding to the threaded hole 10 of the hub bearing 2.

[0054] As some embodiments of the present application, the number of mating holes of the steering knuckle 3 can be multiple, the number of threaded holes 10 of the wheel hub bearing 2 can be multiple, and the number of the multiple mating holes and the multiple threaded holes 10 are the same and are arranged one-to-one, and the number of connecting parts 1 can also be multiple, and the number of the multiple mating holes, the multiple threaded holes 10, and the multiple connecting parts 1 are the same and are arranged one-to-one.

[0055] It is understandable that when assembly is required, the rod 5 of the connector 1 passes through the matching hole of the steering knuckle 3 and is installed and matched with the threaded hole 10 on the wheel hub bearing 2 to assemble the steering knuckle 3 and the wheel hub bearing 2. In addition, a layer of locking glue can be applied between the external thread of the rod 5 and the threaded hole 10 of the wheel hub bearing 2. The locking glue here can be a pipe thread locking glue or an anaerobic glue, which is not limited in this application.

[0056] Such an arrangement can firmly assemble the steering knuckle 3 and the wheel hub bearing 2 together, and by providing a locking glue between the external thread of the rod 5 and the threaded hole 10 of the wheel hub bearing 2, the probability of loosening of the connecting member 1 can be reduced, and the firmness of the connection between the steering knuckle 3 and the wheel hub bearing 2 can be ensured.

[0057] In some embodiments of the present invention, at least a portion of the outer surface of the connector 1 may have an anti-corrosion layer.

[0058] As some embodiments of the present application, the entire outer surface of the connector 1 may have an anti-corrosion layer. The outer surface of the connector 1 may have an anti-corrosion layer by, but not limited to, using coating anti-corrosion, electrochemical anti-corrosion, hot-dip anti-corrosion and other methods. As some embodiments of the present application, the anti-corrosion layer may be, but not limited to, a zinc-aluminum coating or a zinc-nickel alloy.

[0059] Such a configuration can improve the corrosion resistance of the connector 1, can effectively and greatly reduce the corrosion rate of the connector 1, can improve the reliability of the connector 1, and thus improve the stability of the suspension assembly 100 of the vehicle.

[0060] According to the vehicle according to the embodiment of the utility model, including the suspension assembly 100 of the vehicle of the above-mentioned embodiment, the head 4 has an anti-loosening portion 7 at one end close to the rod 5. After the steering knuckle 3 and the wheel hub bearing 2 are assembled through the connecting piece 1, at least a part of the anti-loosening portion 7 can be embedded in the steering knuckle 3. When the connecting piece 1 has a tendency to loosen (rotate counterclockwise), the anti-loosening portion 7 can interfere with the steering knuckle 3 to play an anti-loosening role, thereby reducing the probability of the connecting piece 1 loosening or even falling off, which is beneficial to improving the connection reliability of the wheel hub bearing 2 and the steering knuckle 3, and is beneficial to improving the safety of the vehicle.

[0061] 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.

[0062] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0063] In the description of the present invention, "plurality" means two or more.

[0064] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0065] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] 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 suspension assembly for a vehicle, characterized in that: include: wheel bearings and steering knuckles; a connecting piece, the connecting piece passing through the steering knuckle and being threadedly connected to the wheel hub bearing to assemble the steering knuckle and the wheel hub bearing; The connecting member comprises a connected head and a rod, wherein one end of the head close to the rod is provided with an anti-loosening portion, and at least a part of the anti-loosening portion can be embedded in the steering knuckle.

2. The vehicle suspension assembly according to claim 1, characterized in that: There are multiple anti-loosening parts, and the multiple anti-loosening parts are arranged in sequence along the circumferential direction of the connecting piece.

3. The vehicle suspension assembly according to claim 1, characterized in that: The anti-loosening portion has a first surface, and along the circumferential direction of the connecting piece, the first surface gradually extends outward.

4. The vehicle suspension assembly according to claim 3, characterized in that: The anti-loosening portion has a second surface, the second surface is connected to the first surface adjacent to the anti-loosening portion, and an angle between the second surface and the first surface adjacent to the anti-loosening portion is less than or equal to ninety degrees.

5. The vehicle suspension assembly according to claim 4, characterized in that: The second surface is connected to the first surface, and a connection point between the second surface and the first surface is located on the outer surface of the sphere.

6. The suspension assembly of a vehicle according to claim 4, characterized in that: The first surface and the second surface are both arc surfaces.

7. The suspension assembly of a vehicle according to claim 1, characterized in that: One end of the head away from the rod portion has a recessed portion.

8. The vehicle suspension assembly according to any one of claims 1 to 7, characterized in that: The rod has an external thread, the steering knuckle has a matching hole, the wheel hub bearing has a threaded hole corresponding to the matching hole, the rod passes through the matching hole and is assembled with the corresponding threaded hole, and a locking glue is arranged between the external thread and the threaded hole.

9. The vehicle suspension assembly according to any one of claims 1 to 7, characterized in that: At least part of the outer surface of the connecting piece has an anti-corrosion layer.

10. A vehicle, characterized in that: A suspension assembly for a vehicle comprising any one of claims 1-9.