Dustproof cover for automobile spherical hinge

Abstract

The utility model provides a dust cover for an automobile spherical hinge, which relates to the technical field of spherical hinge dust covers, and comprises a conical main body part, two opposite ends of the main body part are respectively provided with an upper connecting part and a lower connecting part, the outer circumferential surface of the upper connecting part is provided with a sealing lip, the lower connecting part is provided with a rigid supporting piece, and the rigid supporting piece is provided with a sealing ring. And the rigid supporting piece can fix the lower connecting part on the ball pin seat in a pressing rivet closing-up manner. The connecting part at the lower end of the main body part is connected to the ball pin seat in a riveting closing-up manner, so that the lower end of the dust cover does not need to be fixed by a clamp spring, and the dust cover can adapt to the assembly space of the ball pin seat.

Description

Technical Field

[0001] This utility model relates to the field of ball joint dust cover technology, and more specifically, to a dust cover for automotive ball joints. Background Technology

[0002] With increasingly stringent environmental and energy efficiency requirements, lightweighting of automobiles has become an industry consensus. Lightweight design not only improves fuel efficiency but also optimizes overall vehicle performance, providing consumers with a superior driving experience. Therefore, lightweight design of automotive ball joints will be a crucial trend for future development.

[0003] To meet lightweight design requirements, some automotive ball joints reduce their weight by minimizing redundant parts. This reduces the assembly space on the ball joint seat. Currently, dust covers for ball joint structures typically use a conventional snap ring connection to connect to the ball joint seat, which is inconvenient due to limited installation space. Utility Model Content

[0004] The purpose of this utility model is to provide a dust cover for automotive ball joints, wherein the lower end of the connecting part is connected to the ball pin seat by a press-fitting method, eliminating the need to use a snap ring to fix the lower end of the dust cover, and can adapt to the assembly space of the ball pin seat.

[0005] This utility model is achieved through the following technical solution: a dust cover for an automotive ball joint, comprising a main body, the main body being conical, with an upper connecting part and a lower connecting part respectively provided at opposite ends of the main body, a sealing lip provided on the outer circumferential surface of the upper connecting part, and a rigid support member provided on the lower connecting part, the rigid support member being able to fix the lower connecting part to the ball joint seat by means of press riveting.

[0006] Furthermore, the rigid support is an annular metal seat, which is disposed within the lower connecting portion.

[0007] Furthermore, the annular metal seat is embedded in the lower connecting part by vulcanization molding.

[0008] Furthermore, the inner circumferential surface of the annular metal seat is located inside the lower connecting part, and the outer circumferential surface extends to the outside of the lower connecting part.

[0009] Furthermore, the annular metal seat has multiple through holes distributed along its circumference, and the through holes are located on the side of the annular metal seat located inside the lower connecting part.

[0010] Furthermore, the upper and lower sides of the inner circumferential surface of the annular metal base are provided with arc-shaped chamfers.

[0011] Furthermore, the surface roughness Ra of the annular metal seat is less than 0.8 μm.

[0012] Furthermore, the main body is a cover made of neoprene rubber.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0014] 1. This utility model connects the lower connecting part of the dust cover to the ball pin seat by press-fitting, eliminating the need to use snap rings to fix the lower end of the dust cover. This allows it to adapt to the assembly space of the ball pin seat and makes the connection more reliable.

[0015] 2. Since this utility model does not require the use of a retaining ring to connect to the ball pin seat, the lower connecting part of the dust cover will not age prematurely due to the pressure of the retaining ring, thus avoiding the impact on the service life of the dust cover due to the aging of the lower connecting part. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the annular metal seat of this utility model;

[0018] Reference numerals: 1-Main body, 11-Upper connecting part, 111-Sealing lip, 12-Lower connecting part, 2-Annular metal seat, 21-Through hole, 22-Curved chamfer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Example

[0022] The following is for reference Figure 1 , Figure 2As shown in the illustration, and further explained with reference to a specific embodiment, this embodiment provides a dust cover for an automotive ball joint, including a main body 1. The main body 1 is conical in shape, with an upper connecting part 11 and a lower connecting part 12 at opposite ends. The outer circumferential surface of the upper connecting part 11 is provided with a sealing lip 111, and the lower connecting part 12 is provided with a rigid support member. The rigid support member can fix the lower connecting part 12 to the ball joint seat by press-fitting. Since the upper connecting part 11 is connected to the rod of the ball joint, there is no problem of limited installation space. Therefore, the connection between the top of the main body 1 and the ball joint can be achieved by clamping it to the sealing lip 111 with a snap ring. The lower connecting part 12 is connected to the ball joint seat. Since the installation space on the ball joint seat is limited, the lower connecting part 12 is provided with a rigid support member, and the connection between the lower connecting part 12 and the ball joint seat is achieved by press-fitting, thereby installing the dust cover onto the automotive ball joint.

[0023] In this embodiment, the main body 1 is a cover made of neoprene rubber, and the rigid support is an annular metal seat 2, which is vulcanized and embedded in the lower connecting part 12. The inner circumferential surface of the annular metal seat 2 is located inside the lower connecting part 12, forming an integral part with it. The outer circumferential surface of the annular metal seat 2 extends outside the lower connecting part 12 to facilitate press-fitting and fixing its relative position to the ball pin seat. It should be noted that before vulcanization, an adhesive needs to be applied to the surface of the annular metal seat 2 and baked at 100°C until the adhesive is dry. This improves the bonding strength between the annular metal seat 2 and the lower connecting part 12 after vulcanization. Simultaneously, the adhesive promotes interfacial cross-linking between the rubber and metal, making the vulcanization process more efficient.

[0024] Reference Figure 2 As shown, the annular metal seat 2 has multiple through holes 21 distributed along its circumference. The through holes 21 are located on the side of the annular metal seat 2 inside the lower connecting part 12. During the vulcanization process, the molten rubber can enter the through holes 21 to increase the contact area and improve the stability of the annular metal seat 2 after vulcanization.

[0025] Both the upper and lower sides of the inner circumference of the annular metal seat 2 are provided with arc-shaped chamfers, and the surface roughness Ra of the annular metal seat 2 is less than 0.8μm, so that the annular metal seat 2 has no sharp parts or burrs, thereby avoiding damage to the lower connecting part 12 caused by the annular metal seat 2 and affecting the service life of the overall structure.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust cover for a ball joint of an automobile, comprising a main body portion (1) which is tapered, and an upper connecting portion (11) and a lower connecting portion (12) provided at opposite ends of the main body portion (1), respectively, wherein an outer peripheral surface of the upper connecting portion (11) is provided with a sealing lip (111), characterized in that, The lower connecting part (12) is provided with a rigid support which can fix the lower connecting part (12) on the ball pin seat in a press riveting manner.

2. The dust cover for a ball joint of a vehicle according to claim 1, characterized by The rigid support is a ring-shaped metal seat (2) which is arranged in the lower connecting part (12).

3. The dust shield for a ball joint of a vehicle according to claim 2, characterized by The ring-shaped metal seat (2) is embedded in the lower connecting part (12) by vulcanization forming.

4. The dust shield for a ball joint of a vehicle according to claim 2, characterized by The inner circumferential surface of the ring-shaped metal seat (2) is located in the lower connecting part (12), and the outer circumferential surface extends out of the lower connecting part (12).

5. The dust shield for a ball joint of a vehicle according to claim 2, characterized by A plurality of through holes (21) are distributed on the ring-shaped metal seat (2) along the circumferential direction of the ring-shaped metal seat (2), and the through holes (21) are located on the side of the ring-shaped metal seat (2) located in the lower connecting part (12).

6. The dust cover for a ball joint of a motor vehicle according to claim 5, characterized in that Arc-shaped chamfers (22) are arranged on the upper and lower sides of the inner circumferential surface of the ring-shaped metal seat (2).

7. The dust shield for a ball joint of a vehicle according to claim 2, characterized by The surface roughness Ra of the ring-shaped metal seat (2) is less than 0.8 μm.

8. The dust shield for a ball joint of a vehicle according to claim 1, characterized by The main body part (1) is a cover body made of chloroprene rubber.

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