Dustproof cover for automobile ball head

Abstract

The utility model relates to the technical field of ball head dust covers, in particular to an automobile ball head dust cover which comprises a cover body and a fixing ring, the bottom of the cover body is fixedly connected with the fixing ring, connecting blocks are arranged on the two sides of the fixing ring, an oil injection rubber sleeve is installed below one end of the cover body, and the oil injection rubber sleeve is connected with the oil injection rubber sleeve. And an oil injection hole communicated with the cover body is formed in the oil injection rubber sleeve. During mounting and dismounting, the fixing ring can be mounted on the lower swing arm ball head by holding the two connecting blocks with two hands and forcibly pressing the connecting blocks downwards with two hands, mounting is convenient, the fixing ring and the lower swing arm ball head can be separated by forcibly pulling the connecting blocks upwards during dismounting, contact with a crowbar is not needed, abrasion of the crowbar to the lower swing arm is reduced, and the service life of the lower swing arm is prolonged. When lubricating oil needs to be added into the lower swing arm ball head, the sealing column can be detached from the inside of the supporting ring, then the oil nozzle is inserted into the oil injection hole, the lubricating oil can be added into the ball head in the cover body, the dust cover does not need to be detached, and more convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball head dust covers, and particularly relates to an automobile ball head dust cover. Background Art

[0002] The lower control arm ball joint (universal joint) is an important component in the automobile suspension system. Its main function is to cooperate with the lower control arm to stabilize the vehicle body and assist in steering. The dust cover of the lower control arm ball joint is a device used to protect the lower control arm ball joint, preventing water and dust from entering, thereby extending the service life of the ball joint.

[0003] The applicant found that there are some problems with the existing dust covers:

[0004] 1. The dust cover is usually installed with a metal fixing ring at the bottom. The fixing ring is annular and sleeved on the root of the installation shaft at the upper end of the lower control arm. In order to install firmly, the fixing ring and the lower control arm will be relatively tight. When installing, the staff first put the fixing ring on the lower control arm and need to press down hard to complete the installation. Since the edge of the fixing ring is narrow, the fingers cannot make good contact with the edge of the fixing ring, so no force can be exerted. Some maintenance personnel will hold a plastic bottle by its mouth and use the mouth of the plastic bottle to press down the fixing ring, which is inconvenient during installation. When removing the damaged dust cover, a crowbar is also needed to pry off the damaged dust cover, and the crowbar may cause certain wear to the lower control arm.

[0005] 2. As an important component in the automobile suspension system, the lower control arm ball joint can reduce friction, extend its service life, and ensure its normal operation by regularly adding lubricating oil. When adding lubricating oil, the entire dust cover needs to be removed, which is not convenient enough.

[0006] Therefore, the utility model designs an automobile ball head dust cover to solve the problems existing in the prior art. Content of the Utility Model

[0007] The purpose of the utility model is to provide an automobile ball head dust cover to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the utility model provides the following technical solution: an automobile ball head dust cover, comprising: a cover body and a fixing ring. The bottom of the cover body is fixedly connected to the fixing ring. Connecting blocks are provided on both sides of the fixing ring. An oil injection rubber sleeve is installed below one end of the cover body. An oil injection hole communicating with the cover body is opened on the oil injection rubber sleeve. A groove communicating with the oil injection hole is opened at one end of the oil injection rubber sleeve. A support ring is fixedly installed in the groove, and a sealing column is detachably installed in the support ring.

[0009] Preferably, threaded holes are provided on both sides of the fixing ring. A screw rod is rotatably installed in the threaded holes through threads. One side of the screw rod is fixedly installed with a connecting block. The length of the connecting block can be extended through the threaded holes and the screw rod, making it more convenient to press down and pull up. After installation, the screw rod is screwed into the threaded hole to reduce the occupied space of the connecting block.

[0010] Preferably, rubber pads are provided at both the upper and lower ends of the connecting block, and the rubber pads can improve the comfort of the staff's fingers.

[0011] Preferably, internal threads are provided on the inner wall of the support ring, and external threads matching the internal threads are provided on the outer side wall of the sealing column. Through the internal and external threads, the sealing column can be detachably installed in the support ring to seal the oil injection hole.

[0012] Preferably, a hexagonal hole is provided at one end of the sealing column, and the hexagonal hole facilitates using a hexagonal wrench to turn the sealing column.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. When installing, disassembling and assembling the present utility model, the staff holds the two connecting blocks with both hands and presses down forcefully with both hands, then the fixing ring can be installed on the lower swing arm ball head. The installation is convenient. When disassembling, pull up forcefully, and the fixing ring and the lower swing arm ball head can be separated. There is no need to contact the crowbar, reducing the wear of the crowbar on the lower swing arm.

[0015] 2. When lubricating oil needs to be added to the lower swing arm ball head of the present utility model, the sealing column can be removed from the support ring, and then the oil nozzle is inserted into the oil injection hole, and the lubricating oil can be added to the ball head in the cover body. After adding, the sealing column is screwed into the support ring to complete the sealing. There is no need to disassemble the dust cover, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view schematic diagram of the present utility model;

[0017] Figure 2 is the front view explosion schematic diagram of the present utility model;

[0018] Figure 3 is the explosion schematic diagram of the oil injection rubber structure of the present utility model.

[0019] In the figure: 1, cover body; 2, fixing ring; 3, connecting block; 4, threaded hole; 5, screw rod; 6, rubber pad; 7, oil injection rubber sleeve; 8, oil injection hole; 9, groove; 10, support ring; 11, internal thread; 12, sealing column; 13, external thread; 14, hexagonal hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , an embodiment provided by the present invention: an automobile ball head dust cover, including: a cover body 1 and a fixing ring 2. The bottom of the cover body 1 is fixedly connected to the fixing ring 2. Connecting blocks 3 are provided on both sides of the fixing ring 2. An oil injection rubber sleeve 7 is installed below one end of the cover body 1. An oil injection hole 8 communicating with the cover body 1 is opened on the oil injection rubber sleeve 7. A groove 9 communicating with the oil injection hole 8 is opened at one end of the oil injection rubber sleeve 7. A support ring 10 is fixedly installed in the groove 9. A sealing column 12 is detachably installed in the support ring 10.

[0022] Please refer to Figures 1-3 , in this embodiment: threaded holes 4 are opened on both sides of the fixing ring 2. A screw rod 5 is rotatably installed in the threaded holes 4 through threads. One side of the screw rod 5 is fixedly installed with the connecting block 3.

[0023] Please refer to Figures 1-3 , in this embodiment: rubber pads 6 are provided at both the upper and lower ends of the connecting block 3.

[0024] Please refer to Figures 1-3 , in this embodiment: internal threads 11 are opened on the inner wall of the support ring 10. External threads 13 matching the internal threads 11 are opened on the outer side wall of the sealing column 12.

[0025] Please refer to Figure 3 , in this embodiment: a hexagonal hole 14 is opened at one end of the sealing column 12.

[0026] Working principle: When installing and disassembling the cover body 1, the connecting block 3 can be rotated to make the screw rod 5 turn out from the threaded hole 4. Then, the staff holds the connecting block 3 with both hands and presses down to install the fixing ring 2 on the lower control arm ball head. After installation, the screw rod 5 is then turned into the threaded hole 4 to reduce the occupied space. Pulling upwards with force can separate the fixing ring 2 from the lower control arm ball head. When lubricating oil needs to be added to the ball head, a hexagonal wrench can be inserted into the hexagonal hole 14 to turn out the sealing column 12 from the support ring 10. Then, an oil nozzle is inserted into the oil injection hole 8 to add lubricating oil. After adding, the sealing column 12 is screwed into the support ring 10 for sealing. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automotive ball head dust cover, comprising: A cover body (1) and a fixing ring (2), characterized in that: the bottom of the cover body (1) is fixedly connected to the fixing ring (2), connection blocks (3) are provided on both sides of the fixing ring (2), an oil injection rubber sleeve (7) is installed below one end of the cover body (1), an oil injection hole (8) communicating with the cover body (1) is formed in the oil injection rubber sleeve (7), a groove (9) communicating with the oil injection hole (8) is formed at one end of the oil injection rubber sleeve (7), a support ring (10) is fixedly installed in the groove (9), and a sealing column (12) is detachably installed in the support ring (10).

2. The ball joint dust cover for an automobile according to claim 1, characterized in that: Threaded holes (4) are formed on both sides of the fixing ring (2), a screw rod (5) is rotationally installed in the threaded holes (4) by threads, and one side of the screw rod (5) is fixedly installed with the connection block (3).

3. The ball head dust cover for an automobile according to claim 1, wherein: Rubber pads (6) are provided at both the upper and lower ends of the connection block (3).

4. The ball joint dust cover for an automobile according to claim 1, wherein: Internal threads (11) are formed on the inner wall of the support ring (10), and external threads (13) matching the internal threads (11) are formed on the outer side wall of the sealing column (12).

5. The ball joint dust cover for an automobile according to claim 1, characterized in that: A hexagonal hole (14) is formed at one end of the sealing column (12).

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