A ball head dust cover for an automobile
By using threaded connections of connecting protrusions, retaining rings, and bolts in the automotive ball joint dust cover, combined with corrosion-resistant and heat-conducting materials, the problem of dust cover loosening and falling off is solved, improving reliability and heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI RUIPU RUBBER & PLASTIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-19
AI Technical Summary
Existing automotive ball joint dust covers are prone to loosening and falling off due to vibrations during vehicle operation, resulting in poor device reliability.
The protective cover body is connected to the ball shaft and ball seat by threaded connections of connecting protrusions, retaining rings and bolts, combined with corrosion-resistant layer and soft thermally conductive silicone sheet material to enhance connection tightness and heat dissipation.
The dust cover has improved reliability during long-term use, enhanced heat dissipation, prevented loosening and falling off, and extended its service life.
Smart Images

Figure CN224380381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, specifically to a ball-shaped dust cover for automobiles. Background Technology
[0002] The role of the ball joint in a car suspension arm is to transmit force. The service life of the suspension arm largely depends on the use of the ball joint. Because the ball joint of a car suspension arm operates in high temperature, dust and rain conditions, a dust cover is needed to protect the ball joint.
[0003] Chinese Patent CN112196888B discloses a high-performance automotive ball joint dust cover, relating to the automotive field. It includes a ball joint with a sealing ball pin rotatably connected to the center of its top. A mounting mechanism is located on the top of the ball joint, and a dust cover is mounted on top of the mounting mechanism. The dust cover contains a heat dissipation mechanism, comprising a heat dissipation plate and heat dissipation pipes. The heat dissipation plate has internal threads and external threads. The mounting mechanism includes an auxiliary inner plate and a sealing plate, with a base plate at the bottom of the sealing plate. The heat dissipation plate contacts the heat dissipation pipes, which are vertically wound and located within the dust cover. The heat dissipation pipes absorb heat and dissipate it through the heat dissipation plate, reducing heat generated inside the dust cover, preventing aging, and extending its service life. Furthermore, the heat dissipation pipes of this shape have a large deformation capacity, which does not affect the normal rotation of the sealing ball joint.
[0004] The shortcomings of the above-mentioned existing technical solutions are: the connection between the various mechanisms is relatively simple, and the dust cover is prone to loosening and falling off due to vibrations generated during vehicle operation, resulting in poor reliability of the device during long-term use. Utility Model Content
[0005] The purpose of this utility model is to provide a ball joint dust cover for automobiles, in order to solve the technical problem that the connection method between various mechanisms in the prior art is relatively simple, and the dust cover is prone to loosening and falling off due to vibration during automobile driving, resulting in poor reliability of the device during long-term use.
[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0007] A ball-shaped dust cover for automobiles, comprising:
[0008] The protective cover mechanism consists of a protective cover body, a fixed ring 1 fixedly connected to the upper end of the protective cover body, and a fixed ring 2 fixedly connected to the lower end of the protective cover body.
[0009] A ball shaft includes a connecting rod, a connecting ball joint is fixedly connected to the connecting rod, a bushing is sleeved and fixedly connected to the connecting rod, and connecting protrusions are evenly distributed and fixedly connected in a ring on the outer end face of the bushing, with the connecting protrusions connected to the fixing ring.
[0010] The ball seat includes a ball seat body, on which a ball joint connecting groove is provided, and a connecting ball joint is sleeved in the ball joint connecting groove. An alignment ring is provided on the ball seat body, and the alignment ring is connected to a fixing ring.
[0011] As a further embodiment of this utility model, four connecting protrusions are provided.
[0012] As a further embodiment of this utility model: a connecting threaded hole is provided through the connecting protrusion, and a fixing through hole corresponding to the connecting threaded hole is evenly distributed in a ring on the fixing ring.
[0013] As a further embodiment of this utility model: a connecting bolt is provided between the fixing ring and the connecting protrusion, and the fixing ring and the connecting protrusion are threadedly connected by the connecting bolt.
[0014] As a further embodiment of this utility model: a connecting bolt passes through a fixing through hole and is threadedly connected to a connecting threaded hole.
[0015] As a further embodiment of this utility model: the second fixing ring has a fixed through hole 2 evenly distributed and penetrated in a ring, and the second alignment ring has an alignment thread hole corresponding to the second fixing through hole 2 evenly distributed and penetrated in a ring.
[0016] As a further embodiment of this utility model: a connecting bolt is provided between the fixing ring and the alignment ring, and the fixing ring and the alignment ring are connected by the connecting bolt through a threaded connection.
[0017] As a further embodiment of this utility model: the connecting bolt 2 passes through the fixing through hole 2 and is threadedly connected to the alignment threaded hole.
[0018] As a further embodiment of this utility model: the main body of the protective cover includes a protective layer one, a protective layer two, and a protective layer three, with the protective layer three being the innermost layer, the protective layer one being the outermost layer, and the protective layer two being disposed between the protective layer one and the protective layer three.
[0019] As a further embodiment of this utility model: the first protective layer is a corrosion-resistant layer, the second protective layer is made of rubber material, the third protective layer is made of soft thermally conductive silicone sheet material, the upper end of the third protective layer is fixedly connected to the first fixing ring, and the lower end of the third protective layer is fixedly connected to the second fixing ring.
[0020] The beneficial effects of this utility model are:
[0021] 1. In use, the bushing has connecting protrusions evenly distributed in an annular shape on its outer side. The upper end of the protective cover body is fixedly connected to a fixing ring one. The fixing ring one and the connecting protrusions are connected by a connecting bolt one. At the same time, the lower end of the protective cover body is fixedly connected to a fixing ring two. The base connecting ring is fixedly connected to an alignment ring corresponding to the fixing ring two. The alignment ring and the fixing ring two are connected by a connecting bolt two. This makes the fixed installation between the protective cover body and the ball shaft and ball seat more tight, preventing the connection between the protective cover body and the ball shaft and ball seat from loosening after long-term use, and improving the reliability of the device during long-term use.
[0022] 2. The main body of the protective cover of this utility model includes a protective layer one, a protective layer two, and a protective layer three. The protective layer three is disposed on the outermost layer, the protective layer one is disposed on the innermost layer, and the protective layer two is disposed between the protective layer one and the protective layer three. The protective layer three is made of soft thermally conductive silicone sheet material. The upper end of the protective layer three is fixedly connected to the fixing ring one, and the lower end of the protective layer three is fixedly connected to the fixing ring two, which helps to improve the overall heat dissipation effect of the device. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings.
[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the protective cover mechanism of this utility model. Figure 1 ;
[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective cover mechanism of this utility model. Figure 2 ;
[0026] Figure 3 This is a cross-sectional structural diagram of the protective cover mechanism of this utility model;
[0027] Figure 4 This is a schematic diagram of the overall structure of this utility model;
[0028] Figure 5 This is a cross-sectional view of part of the structure of this utility model;
[0029] Figure 6 This is a three-dimensional structural diagram of the ball shaft of this utility model;
[0030] Figure 7 This is a three-dimensional structural diagram of the ball seat of this utility model.
[0031] In the diagram: 1. Protective cover mechanism; 11. Protective cover body; 111. Protective layer one; 112. Protective layer two; 113. Protective layer three; 12. Fixing ring one; 13. Fixing through hole one; 14. Fixing ring two; 15. Fixing through hole two; 2. Ball shaft; 21. Connecting rod; 22. Bushing; 23. Connecting ball joint; 24. Connecting protrusion; 25. Connecting threaded hole; 3. Ball seat; 31. Ball seat body; 32. Ball joint connecting groove; 33. Base connecting ring; 34. Alignment ring; 35. Alignment threaded hole; 4. Connecting bolt one; 5. Connecting bolt two. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0033] like Figures 1-7 As shown, a ball joint dust cover for automobiles includes a protective cover mechanism 1, a ball shaft 2, and a ball seat 3. The protective cover body 11 has a fixing ring 12 fixedly connected to its upper end and a fixing ring 14 fixedly connected to its lower end. The ball shaft 2 includes a connecting rod 21, a connecting ball joint 23 fixedly connected to the connecting rod 21, and a bushing 22 sleeved and fixedly connected to the connecting rod 21. Connecting protrusions 24 are evenly distributed and fixedly connected to the outer end face of the bushing 22, and the connecting protrusions 24 are connected to the fixing rings. Next, the ball seat 3 includes a ball seat body 31, on which a ball joint connecting groove 32 is provided. The connecting ball joint 23 is sleeved in the ball joint connecting groove 32. An alignment ring 34 is provided on the ball seat body 31, and the alignment ring 34 is connected to the fixing ring 14. Through the above arrangement, the protective cover body 11, the ball shaft 2, and the ball seat 3 can be more tightly fixed and installed, preventing the connection between the protective cover body 11, the ball shaft 2, and the ball seat 3 from loosening after long-term use, and improving the reliability of the device during long-term use.
[0034] In some specific implementations, four connecting protrusions 24 are provided.
[0035] A connecting threaded hole 25 is provided through the connecting protrusion 24. A fixing through hole 13 corresponding to the connecting threaded hole 25 is evenly distributed in a ring on the fixing ring 12. A connecting bolt 4 is provided between the fixing ring 12 and the connecting protrusion 24. The fixing ring 12 and the connecting protrusion 24 are threadedly connected by the connecting bolt 4. The connecting bolt 4 passes through the fixing through hole 13 and is threadedly connected to the connecting threaded hole 25.
[0036] The second fixing ring 14 has a series of uniformly distributed and through fixing holes 15. The second aligning ring 34 has a series of uniformly distributed and through aligning threaded holes 35 corresponding to the fixing holes 15. A second connecting bolt 5 is provided between the second fixing ring 14 and the second aligning ring 34. The second fixing ring 14 and the second aligning ring 34 are threaded together by the second connecting bolt 5. The second connecting bolt 5 passes through the fixing holes 15 and is threadedly connected to the second aligning threaded holes 35.
[0037] The main body 11 of the protective cover includes a first protective layer 111, a second protective layer 112, and a third protective layer 113. The third protective layer 113 is located in the innermost layer, the first protective layer 111 is located in the outermost layer, and the second protective layer 112 is located between the first protective layer 111 and the third protective layer 113. The first protective layer 111 is a corrosion-resistant layer, the second protective layer 112 is made of rubber material, and the third protective layer 113 is made of soft thermally conductive silicone sheet material. The upper end of the third protective layer 113 is fixedly connected to the first fixing ring 12, and the lower end of the third protective layer 113 is fixedly connected to the second fixing ring 14. Connecting the third protective layer 113 to the first fixing ring 12 and the second fixing ring 14 helps to improve the heat dissipation effect.
[0038] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:
[0039] During use, the bushing 22 has evenly distributed connecting protrusions 24 on its outer ring. A fixing ring 12 is fixedly connected to the upper end of the protective cover body 11. The fixing ring 12 and the connecting protrusions 24 are connected by a connecting bolt 4. Simultaneously, a fixing ring 24 is fixedly connected to the lower end of the protective cover body 11. A corresponding alignment ring 34 is fixedly connected to the base connecting ring 33. The alignment ring 34 and the fixing ring 24 are connected by a connecting bolt 5. This ensures a tighter installation between the protective cover body 11, the ball shaft 2, and the ball seat 3, preventing damage to the protective cover body 11 and the ball shaft 2 after prolonged use. The connection between the ball seat 3 and the ball seat 3 is loose. To improve the reliability of the device during long-term use, the main body 11 of the protective cover includes a first protective layer 111, a second protective layer 112 and a third protective layer 113. The third protective layer 113 is located on the outermost layer, the first protective layer 111 is located on the innermost layer, and the second protective layer 112 is located between the first protective layer 111 and the third protective layer 113. The third protective layer 113 is made of soft thermally conductive silicone sheet material. The upper end of the third protective layer 113 is fixedly connected to the first fixing ring 12, and the lower end of the third protective layer 113 is fixedly connected to the second fixing ring 14, which helps to improve the overall heat dissipation effect of the device.
[0040] The foregoing has described several embodiments of this utility model in detail, but these embodiments are not limited thereto and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.
Claims
1. A ball joint dust boot for an automobile, characterized by comprising: include: The protective cover mechanism (1), the protective cover body (11), the upper end of the protective cover body (11) is fixedly connected with a fixing ring one (12), and the lower end of the protective cover body (11) is fixedly connected with a fixing ring two (14); The ball shaft (2) includes a connecting rod (21), a connecting ball joint (23) is fixedly connected to the connecting rod (21), a bushing (22) is sleeved and fixedly connected to the connecting rod (21), and connecting protrusions (24) are evenly distributed and fixedly connected to the outer end face of the bushing (22), and the connecting protrusions (24) are connected to the fixing ring. The ball seat (3) includes a ball seat body (31), a ball joint connecting groove (32) is provided on the ball seat body (31), a connecting ball joint (23) is fitted in the ball joint connecting groove (32), and an alignment ring (34) is provided on the ball seat body (31), which is connected to the second fixing ring (14).
2. A ball joint dust boot for a vehicle as set forth in claim 1, characterized in that, There are four connecting bumps (24).
3. A ball joint dust boot for a vehicle as set forth in claim 1 wherein, A connecting threaded hole (25) is provided through the connecting protrusion (24), and a fixing through hole (13) corresponding to the connecting threaded hole (25) is evenly distributed in a ring on the fixing ring (12).
4. A ball joint dust boot for a vehicle as set forth in claim 1 wherein, A connecting bolt (4) is provided between the fixing ring (12) and the connecting protrusion (24), and the fixing ring (12) and the connecting protrusion (24) are connected by the connecting bolt (4) through a thread.
5. A ball-shaped dust cover for automobiles according to claim 3, characterized in that, The connecting bolt (4) passes through the fixing through hole (13) and is threaded into the connecting threaded hole (25).
6. A ball-shaped dust cover for automobiles according to claim 1, characterized in that, Fixed ring 2 (14) has fixed through holes 2 (15) evenly distributed and penetrated in a ring, and alignment ring 34 has alignment threaded holes (35) evenly distributed and penetrated in a ring, corresponding to fixed through holes 2 (15).
7. A ball-shaped dust cover for automobiles according to claim 1, characterized in that, A connecting bolt 2 (5) is provided between the fixing ring 2 (14) and the alignment ring (34), and the fixing ring 2 (14) and the alignment ring (34) are connected by the connecting bolt 2 (5) threaded connection.
8. A ball-shaped dust cover for automobiles according to claim 6, characterized in that, The connecting bolt 2 (5) is threaded through the fixing through hole 2 (15) and the alignment threaded hole (35).
9. A ball-shaped dust cover for automobiles according to claim 1, characterized in that, The main body of the protective cover (11) includes a first protective layer (111), a second protective layer (112) and a third protective layer (113). The third protective layer (113) is located in the innermost layer, the first protective layer (111) is located in the outermost layer, and the second protective layer (112) is located between the first protective layer (111) and the third protective layer (113).
10. A ball-shaped dust cover for automobiles according to claim 9, characterized in that, The first protective layer (111) is a corrosion-resistant layer, the second protective layer (112) is made of rubber material, and the third protective layer (113) is made of soft thermally conductive silicone sheet material. The upper end of the third protective layer (113) is fixedly connected to the first fixing ring (12), and the lower end of the third protective layer (113) is fixedly connected to the second fixing ring (14).