Sealing cover, hub driving structure and vehicle

Abstract

The utility model provides a sealing cover, a hub driving structure and a vehicle, the sealing cover is used for sealing a driving shaft and a hub bearing, and the sealing cover comprises an annular cover body; the first connecting structure and the sealing structure are arranged on the inner surface of the annular cover body at intervals in the axial direction of the annular cover body, the first connecting structure is suitable for being connected with one of the driving shaft and the hub bearing, the sealing structure is suitable for sealing the other one of the driving shaft and the hub bearing, and the annular cover body comprises a first arc-shaped section and a second arc-shaped section; the first arc-shaped section and the second arc-shaped section are detachably connected and can be spliced to form an annular cover body. By means of the structure, the assembling sequence of the driving shaft, the hub bearing and the sealing cover is changed, it is guaranteed that the annular cover body is assembled after the driving shaft and the hub bearing are installed in place, and the part assembling quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a sealing cover, a wheel hub drive structure and a vehicle. Background Art

[0002] When installing an automotive wheel hub, the sealing cover must first be secured to the drive shaft, and then the drive shaft must be mounted on the inner ring of the wheel hub bearing. During assembly, the sealing cover fits over the inner ring of the wheel hub bearing, with the sealing lip pressing against the inner ring to achieve a seal. However, in the aforementioned structure, the sealing cover obscures the meshing connection between the drive shaft and the wheel hub bearing during assembly, making it impossible to verify the mating state of the drive shaft and the wheel hub bearing. This can easily lead to improper assembly, compromising product quality. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the sealing cover blocks the view when installing the automobile wheel hub and the drive shaft, resulting in incomplete assembly of parts due to the inability to confirm the assembly status of the parts, thereby providing a sealing cover, a wheel hub drive structure and a vehicle.

[0004] In order to solve the above problems, the utility model provides a sealing cover for sealing a drive shaft and a hub bearing, comprising: an annular cover body; a first connecting structure and a sealing structure, which are arranged on the inner surface of the annular cover body at intervals along the axial direction of the annular cover body, the first connecting structure is suitable for connecting to one of the drive shaft and the hub bearing, and the sealing structure is suitable for sealing the other of the drive shaft and the hub bearing, wherein the annular cover body comprises a first arc segment and a second arc segment, the first arc segment and the second arc segment are detachably connected, and can be spliced together to form the annular cover body.

[0005] Optionally, both ends of the first arc segment have first joint surfaces, and both ends of the second arc segment have second joint surfaces. The first joint surfaces and the second joint surfaces match each other, and the first joint surfaces and the second joint surfaces are connected by a second connecting structure.

[0006] Optionally, the second connection structure includes a connection protrusion and a connection recess, the connection protrusion is arranged on one of the first joint surface and the second joint surface, the connection recess is arranged on the other of the first joint surface and the second joint surface, and the connection protrusion is inserted into the connection recess with interference fit.

[0007] Optionally, the first connection structure includes a first latching protrusion and a second latching protrusion that are arranged opposite to each other along the axial direction of the annular cover body, and a clamping space is formed between the first latching protrusion and the second latching protrusion.

[0008] Optionally, a limiting protrusion or a limiting recess is provided on the surfaces opposite to each other of the first locking protrusion and the second locking protrusion.

[0009] Optionally, the sealing structure includes a first sealing lip and a second sealing lip that are arranged opposite to each other along the axial direction of the annular cover body, and the first sealing lip and the second sealing lip are arranged inclined in directions away from each other.

[0010] Optionally, along the axial direction of the annular cover body, the annular cover body includes a connecting part and a sealing part, the connecting part is made of metal, the sealing part is made of rubber, the sealing part is connected to the connecting part by vulcanization, the first connecting structure is arranged on the connecting part, and the sealing structure is arranged on the sealing part.

[0011] The utility model also provides a wheel hub drive structure, including: a wheel hub bearing, including an outer ring and an inner ring; a drive shaft, drivingly connected to the inner ring; a sealing cover, the cover being arranged at the connection between the inner ring and the drive shaft, a first connecting structure being connected to one of the inner ring and the drive shaft, a sealing structure sealing the other of the inner ring and the drive shaft, and the sealing cover being the above-mentioned sealing cover.

[0012] Optionally, a connecting protrusion is provided on the driving shaft, the first connecting structure is connected to the connecting protrusion, and a side portion of the connecting protrusion is provided with a limiting protrusion or a limiting recess suitable for cooperating with the first connecting structure.

[0013] The utility model also provides a vehicle, comprising the above-mentioned wheel hub drive structure.

[0014] The utility model has the following advantages:

[0015] Utilizing the technical solution of the present invention, the annular cover body of the sealing cover includes a first arc segment and a second arc segment. During installation, the drive shaft and the wheel hub bearing are assembled first. After ensuring that the installation positions of the two are accurate, the first arc segment is fixed by the first connecting structure, and then the second arc segment is snapped together with the first arc segment and fixed by the first connecting structure. After the first arc segment and the second arc segment are assembled to form the annular cover body, the sealing structure seals the drive shaft and the wheel hub bearing. The above structure changes the assembly sequence between the drive shaft, the wheel hub bearing and the sealing cover, ensuring that the annular cover body is assembled after the drive shaft and the wheel hub bearing are in place, thereby ensuring the quality of parts assembly. Therefore, the technical solution of the present invention solves the defect in the prior art that the sealing cover blocks the view when the automobile wheel hub and the drive shaft are installed, and the parts cannot be assembled in place due to the inability to confirm the assembly status of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram showing the cooperation between the sealing cover and the drive shaft of the utility model is shown;

[0018] Figure 2 Shown Figure 1 A schematic structural diagram of the first arc section of the middle sealing cover;

[0019] Figure 3 Shown Figure 2 A side view of the first arc segment;

[0020] Figure 4 Shown Figure 1 A schematic structural diagram of the second arc section of the middle sealing cover;

[0021] Figure 5 Shown Figure 4 A side view of the second arc segment;

[0022] Figure 6 Shows a schematic structural diagram of the wheel hub drive structure of the present utility model;

[0023] Figure 7 Shown Figure 6 Schematic diagram of the structure of the inner ring, drive shaft and sealing cover of the hub drive structure.

[0024] Description of reference numerals:

[0025] 10. Annular cover; 11. First arcuate segment; 111. First joint surface; 12. Second arcuate segment; 13. Connecting portion; 14. Sealing portion; 121. Second joint surface; 20. First connecting structure; 21. First latching protrusion; 22. Second latching protrusion; 30. Sealing structure; 31. First sealing lip; 32. Second sealing lip; 40. Second connecting structure; 41. Connecting protrusion; 42. Connecting recess; 50. Limiting protrusion; 60. Limiting recess; 100. Drive shaft; 101. Connecting protrusion; 200. Hub bearing; 201. Outer ring; 202. Inner ring. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figures 1 to 5 As shown, the sealing cover according to the present application is used to seal the drive shaft 100 and the wheel hub bearing 200. The embodiment of the sealing cover of the present application includes an annular cover body 10, a first connecting structure 20 and a sealing structure 30. The first connecting structure 20 and the sealing structure 30 are arranged on the inner surface of the annular cover body 10 at intervals along the axial direction of the annular cover body 10. The first connecting structure 20 is suitable for connecting with one of the drive shaft 100 and the wheel hub bearing 200, and the sealing structure 30 is suitable for sealing the other of the drive shaft 100 and the wheel hub bearing 200.

[0031] Furthermore, the annular cover body 10 includes a first arc segment 11 and a second arc segment 12 . The first arc segment 11 and the second arc segment 12 are detachably connected and can be assembled to form the annular cover body 10 .

[0032] Using the technical solution of this embodiment, the annular cover body 10 of the sealing cover includes a first arcuate segment 11 and a second arcuate segment 12. During installation, the drive shaft 100 and the wheel hub bearing 200 are first assembled. After ensuring their correct installation position, the first arcuate segment 11 is secured via the first connecting structure 20. The second arcuate segment 12 is then engaged with the first arcuate segment 11 and secured via the first connecting structure 20. After the first and second arcuate segments 11 and 12 are assembled to form the annular cover body 10, the sealing structure 30 seals between the drive shaft 100 and the wheel hub bearing 200. This structure changes the assembly order of the drive shaft 100, wheel hub bearing 200, and annular cover body 10, ensuring that the drive shaft 100 and wheel hub bearing 200 are properly installed before the annular cover body 10 is assembled, thus ensuring the quality of the parts assembly. Therefore, the technical solution of this embodiment solves the problem of the prior art where the sealing cover obstructs the view during assembly of the automotive wheel hub and drive shaft, making it impossible to confirm the assembled state of the parts, resulting in improper assembly of the parts.

[0033] like Figure 1 As shown, the annular cover 10 is an annular structure, which includes a detachable first arc segment 11 and a second arc segment 12. That is, the annular cover 10 is a detachable split structure. Figure 2 and Figure 4 It can be seen that the first arc segment 11 and the second arc segment 12 are both arc-shaped structures, and the two can be assembled into a complete annular structure, that is, assembled to form the annular cover body 10.

[0034] Optionally, the first arc segment 11 and the second arc segment 12 may have equal or different curvatures, as long as they can be assembled to form a complete annular structure. In this embodiment, the first arc segment 11 and the second arc segment 12 have equal curvatures, and both are semi-annular structures.

[0035] Furthermore, the first connecting structure 20 and the sealing structure 30 are disposed on the inner surface of the annular cover 10. The first connecting structure 20 and the sealing structure 30 are spaced apart along the axial direction of the annular cover 10. In this embodiment, the first connecting structure 20 is used to fix the annular cover 10 to the drive shaft 100, and the sealing structure 30 is used to seal the surface of the hub bearing 200.

[0036] Of course, the connection positions and sealing positions of the first connection structure 20 and the sealing structure 30 can also be reversed. That is, the first connection structure 20 is used to fix the annular cover 10 on the hub bearing 200, and the sealing structure 30 is used to seal the surface of the drive shaft 100.

[0037] like Figures 2 to 5As shown, in the technical solution of this embodiment, when the annular cover body 10 is split into the first arc segment 11 and the second arc segment 12, a portion of the first connecting structure 20 and the sealing structure 30 is formed on the first arc segment 11, and a portion of the first connecting structure 20 and the sealing structure 30 is formed on the second arc segment 12. That is, when the first arc segment 11 and the second arc segment 12 are assembled into the annular cover body 10, the complete first connecting structure 20 and the sealing structure 30 are also assembled at the same time.

[0038] During assembly, after ensuring that the drive shaft 100 and the hub bearing 200 are both properly installed, the first arc segment 11 is first secured to the drive shaft 100 via the first connecting structure 20 provided thereon. Then, the second arc segment 12 is secured to the drive shaft 100 via the first connecting structure 20 provided thereon, so that the first arc segment 11 and the second arc segment 12 are assembled to form the annular cover 10. The sealing structure 30 on the annular cover 10 seals the surface of the hub bearing 200.

[0039] like Figures 2 to 5 As shown, in the technical solution of this embodiment, the first arc segment 11 has first joint surfaces 111 at both ends, and the second arc segment 12 has second joint surfaces 121 at both ends. The first joint surfaces 111 and the second joint surfaces 121 cooperate with each other and are connected by a second connecting structure 40.

[0040] Specifically, the two first joint surfaces 111 of the first arc segment 11 and the two second joint surfaces 121 of the second arc segment 12 are butted together and connected via the second connecting structure 40 , so that the first arc segment 11 and the second arc segment 12 can be joined to form the annular cover body 10 .

[0041] like Figures 2 to 5 As shown, in the technical solution of this embodiment, the second connecting structure 40 includes a connecting protrusion 41 and a connecting recess 42. The connecting protrusion 41 is provided on one of the first joint surface 111 and the second joint surface 121, and the connecting recess 42 is provided on the other of the first joint surface 111 and the second joint surface 121. The connecting protrusion 41 is inserted into the connecting recess 42 with an interference fit.

[0042] Specifically, in this embodiment, the connecting protrusion 41 is provided on the first mating surface 111, and the connecting recess 42 is provided on the second mating surface 121. Both the connecting protrusion 41 and the connecting recess 42 have a flat cross-section. During assembly, the connecting protrusion 41 is inserted into the connecting recess 42 to connect the first arc segment 11 and the second arc segment 12. The connecting protrusion 41 and the connecting recess 42 create an interference fit, and friction prevents the first arc segment 11 and the second arc segment 12 from separating.

[0043] When the annular cover body 10 needs to be disassembled, force is applied outwards to pull the connecting protrusion 41 out of the connecting recess 42 .

[0044] In some embodiments not shown, the connecting protrusion 41 and the connecting recess 42 may also be arranged in other ways:

[0045] For example, the connection protrusion 41 and the connection recess 42 are interchanged, that is, the connection protrusion 41 is disposed on the second joint surface 121 , and the connection recess 42 is disposed on the first joint surface 111 .

[0046] For another example, a connection protrusion 41 is provided on a first joint surface 111, and a connection recess 42 is provided on the second joint surface 121 corresponding to the first joint surface; a connection recess 42 is provided on another first joint surface 111, and a connection protrusion 41 is provided on the second joint surface 121 corresponding to the first joint surface.

[0047] In some embodiments not shown, the second connection structure 40 may also be in a form such as a fastener, a buckle, etc.

[0048] like Figures 2 to 5 As shown, in the technical solution of this embodiment, the first connecting structure 20 includes a first latching protrusion 21 and a second latching protrusion 22 arranged opposite to each other along the axial direction of the annular cover body 10, and a clamping space is formed between the first latching protrusion 21 and the second latching protrusion 22.

[0049] Specifically, the first clamping protrusion 21 and the second clamping protrusion 22 are both annular structures, and both extend toward the inner side of the annular cover 10. A clamping space is formed between the first clamping protrusion 21 and the second clamping protrusion 22. Figure 6 and Figure 7 As shown, the outer surface of the driving shaft 100 is provided with a connecting protrusion 101, and the connecting protrusion 101 is also an annular structure.

[0050] from Figures 2 to 5 As can be seen, the first and second latching protrusions 21, 22 on the first arcuate segment 11 are semi-annular structures, as are the first and second latching protrusions 21, 22 on the second arcuate segment 12. During assembly, the first and second latching protrusions 21, 22 on the first arcuate segment 11 are first secured to the outside of the connecting protrusion 101, securing the first arcuate segment 11 to the outside of the drive shaft 100. The first and second latching protrusions 21, 22 on the second arcuate segment 12 are then secured to the outside of the connecting protrusion 101, securing the second arcuate segment 12 to the outside of the drive shaft 100. The connecting protrusion 41 is then inserted into the connecting recess 42, thereby assembling the first and second arcuate segments 11, 12 to form the annular cover 10.

[0051] like Figure 3 、 Figure 5 and Figure 7As shown, in the technical solution of this embodiment, limiting protrusions 50 are provided on the opposite surfaces of the first locking protrusion 21 and the second locking protrusion 22, and limiting recesses 60 are provided on the two side surfaces of the connecting protrusion 101 of the above-mentioned driving shaft 100.

[0052] The above structure allows the first and second latching protrusions 21, 22 to be positioned outside the limiting protrusion 50 so that the limiting protrusion 50 can be embedded in the limiting recess 60, thereby achieving a limiting effect. Specifically, the first and second latching protrusions 21, 22 can radially limit the first and second arc segments 11, 12, preventing them from separating from the drive shaft 100 due to centrifugal rotation.

[0053] In some embodiments not shown, the setting positions of the limiting protrusion 50 and the limiting recess 60 can be swapped, that is, the limiting recess 60 is set on the opposite surfaces of the first locking protrusion 21 and the second locking protrusion 22, and the limiting protrusion 50 is set on the two side surfaces of the connecting protrusion 101 of the drive shaft 100.

[0054] like Figures 2 to 5 As shown, in the technical solution of this embodiment, the sealing structure 30 includes a first sealing lip 31 and a second sealing lip 32 arranged opposite to each other along the axial direction of the annular cover body 10, and the first sealing lip 31 and the second sealing lip 32 are inclined in directions away from each other.

[0055] Specifically, the first sealing lip 31 and the second sealing lip 32 are both annular structures, extending along the inner side of the annular cover 10. Furthermore, the first and second sealing lips 31, 32 are inclined in opposite directions, forming an "eight"-shaped cross-section. This arrangement ensures that when the annular cover 10 is pressed against the wheel hub bearing 200, the first and second sealing lips 31, 32 can closely contact the surface of the wheel hub bearing 200, thereby achieving an effective seal.

[0056] from Figure 2 and Figure 4 It can be seen that the first sealing lip 31 and the second sealing lip 32 on the first arc segment 11 are semi-annular structures, and the first sealing lip 31 and the second sealing lip 32 on the second arc segment 12 are also semi-annular structures. When the first arc segment 11 and the second arc segment 12 are assembled to form the annular cover 10, a complete first sealing lip 31 and a complete second sealing lip are formed.

[0057] like Figure 3 and Figure 5As shown, in the technical solution of this embodiment, along the axial direction of the annular cover body 10, the annular cover body 10 includes a connecting portion 13 and a sealing portion 14. The connecting portion 13 is made of metal, and the sealing portion 14 is made of rubber. The sealing portion 14 is connected to the connecting portion 13 by vulcanization. The first connecting structure 20 is provided on the connecting portion 13, and the sealing structure 30 is provided on the sealing portion 14.

[0058] Specifically, since the first connecting structure 20 is required to secure the annular cover 10 to the drive shaft 100, the material of the first connecting structure 20 must have a certain connection strength. Since the sealing structure 30 is required to seal the surface of the hub bearing 200, the material of the sealing structure 30 must have good deformation properties to achieve a good sealing performance. Therefore, in this embodiment, the annular cover 10 is divided into two parts, including a connecting portion 13 and a sealing portion 14 along the axial direction.

[0059] Optionally, the connecting portion 13 is made of metal, so that the first connecting structure 20 is made of metal, ensuring that the first locking protrusion 21 and the second locking protrusion 22 can be firmly clamped outside the connecting protrusion 101 .

[0060] Optionally, the sealing portion 14 is made of rubber, so the first sealing lip 31 and the second sealing lip 32 are made of metal, so that both are soft and have good elasticity, ensuring good sealing of the wheel hub bearing 200 .

[0061] Since the connecting portion 13 and the sealing portion 14 are made of different materials, in this embodiment, the two are connected by vulcanization, so that the sealing portion 14 made of rubber can be connected to the connecting portion 13 made of metal.

[0062] like Figure 3 and Figure 5 As shown, the first arc segment 11 and the second arc segment 12 also include the aforementioned connecting portion 13 and sealing portion 14 .

[0063] like Figure 6 and Figure 7 As shown, the present application also provides a wheel hub drive structure. According to an embodiment of the wheel hub drive structure of the present application, it includes a wheel hub bearing 200, a drive shaft 100, and a sealing cover, which is the sealing cover described above. The wheel hub bearing 200 includes an outer ring 201 and an inner ring 202. The drive shaft 100 is drivingly connected to the inner ring 202. The sealing cover is provided at the connection between the inner ring 202 and the drive shaft 100. The first connecting structure 20 is connected to one of the inner ring 202 and the drive shaft 100, and the sealing structure 30 seals the other of the inner ring 202 and the drive shaft 100.

[0064] like Figure 1 and Figure 6As shown, the drive shaft 100 has face teeth, which connect it to the inner ring 202 of the hub bearing 200. As described above, the drive shaft 100 is provided with a connecting protrusion 101, and the first connecting structure 20 is connected to the connecting protrusion 101, that is, the first latching protrusion 21 and the second latching protrusion 22 are clamped outside the connecting protrusion 101. Furthermore, the side of the connecting protrusion 101 is provided with a limiting recess 60 adapted to cooperate with the first connecting structure 20. After assembly, the limiting protrusions 50 of the first and second latching protrusions 21 and 22 snap into the limiting recess 60 of the connecting protrusion 101, thereby providing radial positioning.

[0065] The assembly process of the hub drive structure is:

[0066] 1. First, assemble the drive shaft 100 and the inner ring 202 of the hub bearing 200, ensuring that the end teeth of the two are in full engagement;

[0067] 2. Engage the first and second locking protrusions 21 and 22 on the first arc segment 11 outside the connecting protrusion 101. Engage the limiting protrusions 50 on the first and second locking protrusions 21 and 22 into the limiting recesses 60 of the connecting protrusion 101 to secure the first arc segment 11 to the outside of the drive shaft 101.

[0068] 3. Engage the first and second engaging protrusions 21 and 22 on the second arc segment 12 outside the connecting protrusion 101. Engage the limiting protrusions 50 on the first and second engaging protrusions 21 and 22 into the limiting recesses 60 of the connecting protrusion 101 to secure the second arc segment 12 to the outside of the drive shaft 101.

[0069] 4. Insert the connecting protrusion 41 into the connecting recess 42 , thereby assembling the first arc segment 11 and the second arc segment 12 into the annular cover body 10 , completing the assembly.

[0070] The present application also provides a vehicle. The vehicle according to the present application includes the above-mentioned wheel hub drive structure.

[0071] Optionally, the vehicle is a new energy electric vehicle.

[0072] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A sealing cover for sealing a drive shaft (100) and a hub bearing (200), characterized in that: include: annular cover (10); A first connecting structure (20) and a sealing structure (30) are provided on the inner surface of the annular cover (10) at intervals along the axial direction of the annular cover (10), wherein the first connecting structure (20) is adapted to be connected to one of the drive shaft (100) and the wheel hub bearing (200), and the sealing structure (30) is adapted to seal the other of the drive shaft (100) and the wheel hub bearing (200). The annular cover (10) comprises a first arc segment (11) and a second arc segment (12), and the first arc segment (11) and the second arc segment (12) are detachably connected and can be assembled to form the annular cover (10).

2. The sealing cover according to claim 1, wherein: The first arc segment (11) has first joint surfaces (111) at both ends, and the second arc segment (12) has second joint surfaces (121) at both ends. The first joint surfaces (111) and the second joint surfaces (121) cooperate with each other, and the first joint surfaces (111) and the second joint surfaces (121) are connected via a second connecting structure (40).

3. The sealing cover according to claim 2, wherein: The second connecting structure (40) includes a connecting protrusion (41) and a connecting recess (42), wherein the connecting protrusion (41) is arranged on one of the first joint surface (111) and the second joint surface (121), and the connecting recess (42) is arranged on the other of the first joint surface (111) and the second joint surface (121), and the connecting protrusion (41) is inserted into the connecting recess (42) with interference fit.

4. The sealing cover according to any one of claims 1 to 3, characterized in that: The first connection structure (20) comprises a first clamping protrusion (21) and a second clamping protrusion (22) which are arranged opposite to each other along the axial direction of the annular cover body (10), and a clamping space is formed between the first clamping protrusion (21) and the second clamping protrusion (22).

5. The sealing cover according to claim 4, characterized in that: A limiting protrusion (50) or a limiting recess (60) is provided on the surfaces opposite to each other of the first locking protrusion (21) and the second locking protrusion (22).

6. The sealing cover according to any one of claims 1 to 3, characterized in that: The sealing structure (30) comprises a first sealing lip (31) and a second sealing lip (32) arranged opposite to each other along the axial direction of the annular cover (10), and the first sealing lip (31) and the second sealing lip (32) are inclined in directions away from each other.

7. The sealing cover according to any one of claims 1 to 3, characterized in that: In the axial direction of the annular cover body (10), the annular cover body (10) includes a connecting portion (13) and a sealing portion (14); the connecting portion (13) is made of metal, the sealing portion (14) is made of rubber, the sealing portion (14) is connected to the connecting portion (13) by vulcanization, the first connecting structure (20) is arranged on the connecting portion (13), and the sealing structure (30) is arranged on the sealing portion (14).

8. A wheel hub drive structure, characterized in that: include: A hub bearing (200) comprising an outer ring (201) and an inner ring (202); A drive shaft (100) is drivingly connected to the inner ring (202); A sealing cover, wherein the sealing cover is arranged at the connection between the inner ring (202) and the drive shaft (100), the first connecting structure (20) is connected to one of the inner ring (202) and the drive shaft (100), and the sealing structure (30) seals the other of the inner ring (202) and the drive shaft (100), and the sealing cover is the sealing cover described in any one of claims 1 to 7.

9. The wheel hub drive structure according to claim 8, characterized in that: The drive shaft (100) is provided with a connecting protrusion (101), the first connecting structure (20) is connected to the connecting protrusion (101), and the side of the connecting protrusion (101) is provided with a limiting protrusion (50) or a limiting recess (60) suitable for cooperating with the first connecting structure (20).

10. A vehicle, characterized in that: Comprising the wheel hub drive structure according to claim 8 or 9.

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