Steering shaft dust cover assembly for vehicle and vehicle

Abstract

The utility model discloses a steering shaft dust cover assembly for a vehicle and the vehicle, the steering shaft dust cover assembly comprises a bearing assembly suitable for sleeving the periphery of a steering shaft; the dust cover is suitable for being arranged on a vehicle body of the vehicle, the dust cover forms a flexible connecting part, the flexible connecting part is connected with the bearing assembly, and the flexible connecting part is suitable for deforming to adjust the position of the bearing assembly relative to the vehicle body. According to the dust cover assembly, the flexible connecting part is arranged between the vehicle body and the dust cover and connected with the bearing assembly, when the steering shaft drives the bearing assembly to shake in the radial direction, the flexible connecting part can absorb radial deviation and impact, and the durability and reliability of the dust cover assembly are improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle parts, in particular to a steering shaft dust cover assembly for a vehicle and the vehicle. Background Art

[0002] In the related art, the steering shaft passes through the vehicle body wall panel and is connected to the steering gear. The steering shaft dust cover cooperates with the vehicle body and the steering shaft respectively to protect the steering shaft from dust, water and noise. The traditional steering shaft dust cover is usually composed of an upper and lower cover plate made of plastic material, wherein the rubber gasket inside the lower cover plate is sealed with the steering shaft. If the steering shaft shakes or deviates in the radial direction, the compression amount of the sealing gasket is small, and the upper and lower cover plates made of plastic material are relatively hard. The upper and lower cover plates made of plastic material cannot absorb the impact caused by the radial shaking of the steering shaft. Over time, the steering shaft dust cover assembly is at risk of cracking. At the same time, the assembly has relatively high requirements on the vehicle body accuracy and the installation hard point accuracy of the steering system. The versatility of the traditional steering shaft dust cover assembly is poor. 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 steering shaft dust cover assembly for a vehicle. According to the dust cover assembly of the utility model, a flexible connection portion is provided between the vehicle body and the dust cover, and the flexible connection portion is connected to the bearing assembly. When the steering shaft drives the bearing assembly to shake in the radial direction, the flexible connection portion can absorb the radial deviation and impact, thereby improving the durability and reliability of the dust cover assembly.

[0004] The utility model also provides a vehicle with the dust cover assembly.

[0005] According to the utility model, a steering shaft dust cover assembly for a vehicle includes: a bearing assembly, which is suitable for being sleeved on the outer periphery of the steering shaft; a dust cover, which is suitable for being set on the body of the vehicle and forming a flexible connection portion, which is connected to the bearing assembly and is suitable for deformation to adjust the position of the bearing assembly relative to the body.

[0006] According to the steering shaft dust cover assembly of the utility model, a flexible connection portion is arranged between the vehicle body and the dust cover, and the flexible connection portion can undergo a certain amount of deformation. When the steering shaft dust cover assembly is assembled with the vehicle body, at least part of the dust cover has a certain shrinkage and can be compatible with vehicle body wall panel holes of different sizes, thereby improving the universality of the steering shaft dust cover assembly. The flexible connection portion is also connected to the bearing assembly. When the steering shaft drives the bearing assembly to shake radially, the flexible connection portion can well absorb the radial impact force and offset to adjust the position of the bearing assembly relative to the vehicle body, thereby improving the durability and reliability of the dust cover assembly.

[0007] According to one embodiment of the utility model, the dust cover includes: a connecting body, which is arranged in a surrounding manner and is suitable for being fixedly connected to the vehicle body; a first flexible portion, which is arranged on the inner periphery of the connecting body and extends in the axial direction; a second flexible portion, which is arranged on the inner periphery of the first flexible portion and connects the first flexible portion to the bearing assembly; wherein the bearing assembly and the first flexible portion are arranged at intervals.

[0008] According to one embodiment of the utility model, the connecting body includes: a first cover plate, the first cover plate is suitable for connecting to one side of the vehicle body wall panel, and the first flexible portion is arranged on the first cover plate; a second cover plate, the second cover plate is suitable for connecting to the other side of the vehicle body wall panel and is opposite to and fixedly connected to the first cover plate in the thickness direction of the vehicle body wall panel, and the second cover plate is provided with the first flexible portion.

[0009] According to an embodiment of the present invention, at least a portion of the second flexible portion is configured as a bellows folded in the radial direction.

[0010] According to one embodiment of the utility model, the bearing assembly includes: a bearing body, a bearing mounting hole for accommodating the steering shaft is formed in the bearing body; a sliding ring, the sliding ring is rotatably arranged in the bearing mounting hole; wherein the bearing body is snap-fitted with the first flexible part.

[0011] According to an embodiment of the present invention, the two side surfaces of the bearing body in the axial direction are respectively formed with clamping grooves, and the free end of the second flexible portion is formed with a clamping block that penetrates into the clamping groove.

[0012] According to an embodiment of the utility model, a first guide portion is formed on the first cover plate, and a second guide portion cooperating with the first guide portion is formed on the second cover plate. The first guide portion passes through the vehicle body wall panel and positions the second guide portion.

[0013] According to an embodiment of the present invention, the first cover plate and the first flexible portion are constructed as separate parts.

[0014] According to an embodiment of the present invention, the second cover plate is integrally fixed to the first flexible portion by vulcanization.

[0015] The vehicle according to the present utility model is briefly described below.

[0016] The vehicle according to the utility model is provided with a steering shaft dust cover assembly as described in any one of the above embodiments. Since the vehicle according to the utility model is provided with a steering shaft dust cover assembly as described in any one of the above embodiments, the stability and reliability of the vehicle according to the present application are higher during operation and the noise generated is smaller.

[0017] 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

[0018] 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:

[0019] Figure 1 This is a schematic structural diagram of a steering shaft dustproof assembly according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the coordination of a steering shaft, a steering shaft dust cover assembly and a vehicle body panel according to an embodiment of the utility model;

[0021] Figure 3 is a front view of a steering shaft dustproof assembly according to an embodiment of the utility model;

[0022] Figure 4 is a cross-sectional view of a steering shaft dustproof assembly according to an embodiment of the utility model;

[0023] Figure 5 is a top view of a first cover plate according to an embodiment of the utility model;

[0024] Figure 6 It is a top view of the second cover plate according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Steering shaft dust cover assembly;

[0027] 11. bearing assembly; 111. bearing body; 112. sliding ring;

[0028] 21. first cover plate; 22. second cover plate; 23. first flexible portion; 24. second flexible portion;

[0029] 25. snap-fit ​​groove; 26. snap-fit ​​block; 31. first guide portion; 32. second guide portion;

[0030] 33. Steering shaft; 34. Vehicle body panel; 101. First fixing hole; 102. Second fixing hole. DETAILED DESCRIPTION

[0031] 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.

[0032] In the related art, the steering shaft passes through the vehicle body wall panel and is connected to the steering gear. The steering shaft dust cover cooperates with the vehicle body and the steering shaft respectively to protect the steering shaft from dust, water and noise. The traditional steering shaft dust cover is usually composed of an upper and lower cover plate made of plastic material, wherein the rubber gasket inside the lower cover plate is sealed with the steering shaft. If the steering shaft shakes or deviates in the radial direction, the compression amount of the sealing gasket is small, and the upper and lower cover plates made of plastic material are relatively hard. The upper and lower cover plates made of plastic material cannot absorb the impact caused by the radial shaking of the steering shaft. Over time, the steering shaft dust cover assembly is at risk of cracking. At the same time, the assembly has relatively high requirements on the vehicle body accuracy and the installation hard point accuracy of the steering system. The versatility of the traditional steering shaft dust cover assembly is poor.

[0033] Reference below Figure 1-Figure 6 A steering shaft dust cover assembly for a vehicle according to an embodiment of the utility model is described.

[0034] According to the utility model, the steering shaft dust cover assembly 100 for a vehicle includes: a bearing assembly 11 and a dust cover, wherein the bearing assembly 11 is suitable for being sleeved on the outer periphery of the steering shaft 33; the dust cover is suitable for being set on the body of the vehicle and the dust cover forms a flexible connection portion, which is connected to the bearing assembly 11, and the flexible connection portion is suitable for deformation to adjust the position of the bearing assembly 11 relative to the body.

[0035] In some specific embodiments, the steering shaft dust cover assembly 100 is composed of a bearing assembly 11 and a dust cover, at least part of the dust cover is arranged in the vehicle body, the bearing assembly 11 is arranged in the dust cover, and the steering shaft 33 is arranged in the bearing assembly 11, at least part of the bearing assembly 11 can rotate or move radially with the steering shaft 33, and a flexible connection portion is formed on the dust cover, the flexible connection portion is connected to the bearing assembly 11, and at least part of the flexible connection portion is stopped against the vehicle body, and the flexible connection portion can undergo a certain amount of deformation. When the steering shaft dust cover assembly 100 is assembled with the vehicle body, at least part of the dust cover has a certain shrinkage and can be compatible with vehicle body wall panels 34 holes of different sizes, thereby improving the versatility of the steering shaft dust cover assembly 100. At the same time, when the steering shaft 33 drives the bearing assembly 11 to move radially during vehicle operation, the flexible connection portion can well absorb the radial impact force and offset to adjust the position of the bearing assembly 11 relative to the vehicle body, thereby improving the durability and reliability of the dust cover assembly.

[0036] According to the steering shaft dust cover assembly 100 of the utility model, a flexible connection portion is set between the vehicle body and the dust cover, and the flexible connection portion can undergo a certain amount of deformation. When the steering shaft dust cover assembly 100 is assembled with the vehicle body, at least part of the dust cover has a certain shrinkage and can be compatible with vehicle body wall panel 34 holes of different sizes, thereby improving the universality of the steering shaft dust cover assembly 100. The flexible connection portion is also connected to the bearing assembly 11. When the steering shaft 33 drives the bearing assembly 11 to shake radially, the flexible connection portion can well absorb the radial impact force and offset to adjust the position of the bearing assembly 11 relative to the vehicle body, thereby improving the durability and reliability of the dust cover assembly.

[0037] According to one embodiment of the utility model, the dust cover includes: a connecting body, a first flexible portion 23 and a second flexible portion 24, the connecting body is arranged in a surrounding manner and is suitable for being fixedly connected to the vehicle body; the first flexible portion 23 is arranged on the inner periphery of the connecting body and extends in the axial direction; the second flexible portion 24 is arranged on the inner periphery of the first flexible portion 23 and connects the first flexible portion 23 to the bearing assembly 11; wherein the bearing assembly 11 and the first flexible portion 23 are arranged at intervals.

[0038] In some specific embodiments, the dust cover is mainly composed of a connecting body, a first flexible portion 23 and a second flexible portion 24. The connecting body is arranged around the outer periphery of the first flexible portion 23 and is connected to the vehicle body bolts to achieve the fixation of the dust cover assembly to the vehicle body. The first flexible portion 23 extends axially in the connecting body, and the second flexible portion 24 is arranged on the inner periphery of the first flexible portion 23 and is connected to at least part of the first flexible member. The first flexible portion 23 and the bearing assembly 11 are arranged at intervals. When the steering shaft dust cover assembly 100 is assembled with the vehicle body, since the first flexible portion 23 and the second flexible portion 24 have a certain shrinkage, they can be compatible with vehicle body wall panel 34 holes of different sizes, thereby improving the universality of the steering shaft dust cover assembly 100. The second flexible portion 24 is also connected to the bearing assembly 11 to achieve the connection between the bearing assembly 11 and the dust cover. At the same time, when the steering shaft 33 drives the bearing assembly 11 to shake radially, the second flexible portion 24 can well absorb the radial impact force and offset to adjust the position of the bearing assembly 11 relative to the vehicle body, thereby improving the durability and reliability of the dust cover assembly.

[0039] According to one embodiment of the utility model, the connecting body includes: a first cover plate 21 and a second cover plate 22, the first cover plate 21 is suitable for connecting to one side of the vehicle body wall panel 34, and a first flexible portion 23 is provided on the first cover plate 21; the second cover plate 22 is suitable for connecting to the other side of the vehicle body wall panel 34 and is opposite to and fixedly connected to the first cover plate 21 in the thickness direction of the vehicle body wall panel 34, and the second cover plate 22 is provided with a first flexible portion 23.

[0040] In some specific embodiments, the connecting body is composed of a first cover plate 21 and a second cover plate 22, and the first cover plate 21 and the second cover plate 22 are respectively bolted to the two sides of the vehicle body wall panel 34 in the thickness direction, and the first cover plate 21 and the second cover plate 22 are directly opposite and fixedly connected in the thickness direction of the vehicle body wall panel 34, so that the steering shaft dust cover assembly 100 is connected to the vehicle body while improving the stability and reliability of the connection between the steering shaft dust cover assembly 100 and the vehicle body. A connecting hole is formed on the first cover plate 21 that penetrates the first cover plate 21 in the thickness direction, and at least part of the first flexible part is arranged in the connecting hole. The second cover plate 22 is also provided with a first flexible part 23, and the first flexible part 23 can undergo a certain amount of deformation. When the steering shaft dust cover assembly 100 is assembled with the vehicle body, the first flexible part 23 has a certain shrinkage and can be compatible with vehicle body wall panel 34 holes of different sizes, thereby improving the universality of the steering shaft dust cover assembly 100.

[0041] According to one embodiment of the utility model, at least part of the second flexible portion 24 is constructed as a bellows folded in the radial direction. The corrugated structure of the bellows provides the second flexible portion 24 with necessary flexibility and elasticity. When the steering shaft 33 shakes radially, the impact force generated is applied to the outside of the bellows, and the space between the wave crests and the wave troughs can be reduced, so that the entire dust cover can reduce its diameter radially, thereby achieving compression of the dust cover. Since the second flexible portion 24 has a certain elasticity, the second flexible portion 24 can return to its original state when the force applied to the second flexible portion 24 disappears, thereby being able to absorb the radial offset well. At the same time, the dust cover can be compatible with different body panel 34 hole sizes, thereby improving the universality of the steering shaft dust cover assembly 100.

[0042] According to one embodiment of the utility model, the bearing assembly 11 includes: a bearing body 111 and a sliding ring 112, wherein a bearing mounting hole for accommodating the steering shaft 33 is formed in the bearing body 111; the sliding ring 112 is rotatably disposed in the bearing mounting hole; wherein the bearing body 111 is snap-fitted with the second flexible portion 24.

[0043] In some specific embodiments, the bearing assembly 11 is composed of a bearing body 111 and a sliding ring 112. A bearing mounting hole is formed in the bearing body 111, and at least part of the steering shaft 33 is accommodated in the bearing mounting hole. The bearing body 111 is snap-connected with the second flexible portion 24 to achieve the connection between the bearing assembly 11 and the dust cover. A rotatable sliding ring 112 is provided in the bearing body 111, and the steering shaft 33 can cooperate with the sliding ring 112. The steering shaft 33 can drive the sliding ring 112 to rotate. There is a very small gap between the sliding ring 112 and the bearing body 111 and is filled with grease, which improves the sealing between the bearing body 111 and the sliding ring 112 and reduces the noise generated when the rotating shaft rotates.

[0044] According to an embodiment of the utility model, the two side surfaces in the axial direction of the bearing body 111 are respectively formed with snap-fit ​​grooves 25, and the free end of the second flexible portion 24 is formed with a snap-fit ​​block 26 that penetrates into the snap-fit ​​groove 25. The snap-fit ​​block 26 cooperates with the snap-fit ​​groove 25. When the bearing body 111 is located in the dust cover and shows a tendency to move axially or radially, at least part of the surface of the snap-fit ​​block 26 abuts against at least part of the inner wall of the snap-fit ​​groove 25 to limit the radial or circumferential movement of the bearing assembly 11 in the dust cover, thereby improving the stability and reliability of the connection between the bearing assembly 11 and the dust cover. At the same time, when the dust cover and the bearing are installed, it is only necessary to align the snap-fit ​​block 26 of the second flexible portion 24 with the snap-fit ​​groove 25 on the bearing body 111 and push it in to quickly complete the assembly, thereby simplifying the operation process and reducing the difficulty and time cost of installation.

[0045] According to an embodiment of the utility model, a first guide portion 31 is formed on the first cover plate 21 , and a second guide portion 32 matching the first guide portion 31 is formed on the second cover plate 22 . The first guide portion 31 passes through the vehicle body panel 34 and positions the second guide portion 32 .

[0046] In some specific embodiments, a first guide portion 31 is formed on the side of the first cover plate 21 facing the second cover plate 22, and the first guide portion 31 can be configured as a guide column. A second guide portion 32 is formed on the second cover plate 22, and the second guide portion 32 can be configured as a guide hole. The guide hole penetrates the second cover plate 22 in the thickness direction, and the outer periphery of the guide column is also provided with a first fixing hole 101 corresponding to it, and the outer periphery of the guide hole is also provided with a second fixing hole 102 corresponding to it. When the first guide portion 31 passes through the vehicle body wall panel 34 and is positioned with the second guide portion 32, the guide column extends into the guide hole, thereby ensuring the precise alignment of the first fixing hole 101 and the second fixing hole 102, reducing the assembly difficulty of the first cover plate 21 and the second cover plate 22, and improving the assembly accuracy of the first cover plate 21 and the second cover plate 22.

[0047] According to an embodiment of the present invention, the first cover plate 21 and the first flexible portion 23 are constructed as separate parts.

[0048] In some specific embodiments, the first cover plate 21 can be made of plastic material, and the first flexible part 23 can be made of rubber material. The first cover plate 21 and the first flexible part 23 are constructed as split parts, and the first cover plate 21 and the first flexible part 23 are combined together by plugging. The first cover plate 21 is sleeved on at least part of the periphery of the first flexible part 23. The split design of the first cover plate 21 and the first flexible part 23 makes it possible to replace them separately when the first flexible part 23 or the first cover plate 21 is worn or damaged, without replacing the entire dust cover assembly, thereby reducing maintenance costs and time. At the same time, the split structure can improve the versatility of the product. Manufacturers can select a suitable first flexible part 23 to match the existing first cover plate 21 according to the needs of different models, or select a suitable first cover plate 21 to match the existing first flexible part 23, thereby increasing design flexibility.

[0049] According to an embodiment of the present invention, the second cover plate 22 and the first flexible portion 23 are integrally fixed by vulcanization.

[0050] In some specific embodiments, the second cover plate 22 can be constructed as a plastic cover plate, and the first flexible part 23 can be constructed as a rubber part. The plastic cover plate and the rubber part are combined into an integrated structure through vulcanization. This integrated design can ensure that there is no gap between the first flexible part 23 and the second cover plate 22, effectively preventing dust, moisture and other contaminants from penetrating into the steering shaft dust cover assembly 100, protecting the bearing assembly 11 and the steering shaft 33 from environmental damage, and extending their service life. At the same time, the integrated vulcanization fixation makes the connection between the second cover plate 22 and the various components of the first flexible part 23 more firmly, and it is not easy to loosen or separate due to vibration, temperature changes or long-term use, thereby improving the stability and reliability of the dust cover assembly.

[0051] In addition, compared to designs that require additional fasteners or complex assembly procedures, the second cover plate 22 and the first flexible portion 23 are integrally vulcanized and fixed so that they can be directly installed into place, reducing assembly steps, saving time and labor costs, and also reducing problems caused by assembly errors.

[0052] The vehicle according to the present utility model is briefly described below.

[0053] The vehicle according to the utility model is provided with a steering shaft dust cover assembly 100 as described in any one of the above embodiments. Since the vehicle according to the utility model is provided with a steering shaft dust cover assembly 100 as described in any one of the above embodiments, the stability and reliability of the vehicle according to the present application are higher during operation and the noise generated is smaller.

[0054] 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.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] 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 steering shaft dust cover assembly for a vehicle, characterized in that: include: A bearing assembly (11), wherein the bearing assembly (11) is adapted to be sleeved on the outer periphery of the steering shaft (33); A dust cover, the dust cover is suitable for being arranged on the body of the vehicle and the dust cover forms a flexible connection part, the flexible connection part is connected to the bearing assembly (11), and the flexible connection part is suitable for deforming to adjust the position of the bearing assembly (11) relative to the body.

2. The steering shaft dust cover assembly for a vehicle according to claim 1, characterized in that: The dust cover comprises: A connecting body, which is disposed around and is suitable for being fixedly connected to the vehicle body; A first flexible portion (23), the first flexible portion (23) being arranged on the inner periphery of the connecting body and extending in the axial direction; a second flexible portion (24), the second flexible portion (24) being arranged on the inner periphery of the first flexible portion (23) and connecting the first flexible portion (23) with the bearing assembly (11); wherein The bearing assembly (11) and the first flexible portion (23) are arranged at a distance.

3. The steering shaft dust cover assembly for a vehicle according to claim 2, characterized in that: The connection body comprises: A first cover plate (21), the first cover plate (21) being suitable for being connected to one side of a vehicle body wall plate (34), the first cover plate (21) being provided with the first flexible portion (23); A second cover plate (22), the second cover plate (22) is suitable for being connected to the other side of the vehicle body wall plate (34) and being directly opposite to and fixedly connected to the first cover plate (21) in the thickness direction of the vehicle body wall plate (34), and the second cover plate (22) is provided with the first flexible portion (23).

4. The steering shaft dust cover assembly for a vehicle according to claim 3, characterized in that: At least a portion of the second flexible portion (24) is configured as a bellows folded in the radial direction.

5. The steering shaft dust cover assembly for a vehicle according to claim 3, characterized in that: The bearing assembly (11) comprises: A bearing body (111), wherein a bearing mounting hole for accommodating the steering shaft is formed in the bearing body (111); A sliding ring (112) is rotatably arranged in the bearing mounting hole; wherein The bearing body (111) is snap-fitted with the first flexible portion (23).

6. The steering shaft dust cover assembly for a vehicle according to claim 5, characterized in that: The two side surfaces of the bearing body (111) in the axial direction are respectively formed with clamping grooves (25), and the free end of the second flexible portion (24) is formed with a clamping block (26) that penetrates into the clamping groove (25).

7. The steering shaft dust cover assembly for a vehicle according to claim 3, characterized in that: The first cover plate (21) is formed with a first guide portion (31), the second cover plate (22) is formed with a second guide portion (32) that cooperates with the first guide portion (31), and the first guide portion (31) passes through the vehicle body wall panel (34) and positions the second guide portion (32).

8. The steering shaft dust cover assembly for a vehicle according to claim 7, characterized in that: The first cover plate (21) and the first flexible portion (23) are constructed as separate parts.

9. The steering shaft dust cover assembly for a vehicle according to claim 7, characterized in that: The second cover plate (22) and the first flexible portion (23) are integrally fixed by vulcanization.

10. A vehicle, characterized in that: A dust cover assembly comprising any one of claims 1-9.

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