Ball head cover plate for automobile steering system

Abstract

The utility model discloses a ball head cover plate for automobile steering system, including main body, the main body is fixed installation through the installation hole and screw, is provided with the protection shell in the installation hole, the bottom of protection shell is equipped with fixed column, the side of fixed column is equipped with the clamping block, the inner wall of installation hole is equipped with the clamping groove, and the clamping block is clamped in the clamping groove, and the protection shell includes the fixed plate of multilayer echelon setting, and the height difference between the two layers of fixed plate forms the installation groove, and the inner wall of installation hole is equipped with the sealing groove that is matched with the installation groove, and the fixed plate is embedded in the sealing groove, and the screw is protected through the clamping cooperation of protection shell and the clamping groove in the installation hole, avoids external impact, the erosion of silt and the corrosion, and simultaneously promotes the integrity and the aesthetic degree of the overall appearance of cover plate.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to ball joint cover plates for automotive steering systems. Background Technology

[0002] Ball joint covers are mainly used to protect the ball joint during installation, preventing dust and moisture intrusion and reducing wear. Most existing ball joint covers are directly fixed with screws. However, screws exposed to complex working conditions over time are prone to corrosion and loosening, leading to difficulty in disassembly and decreased connection reliability. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a ball joint cover plate for automotive steering systems, which has protective, self-lubricating and anti-loosening functions.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The ball joint cover for automotive steering systems includes a main body, which is fixedly installed by mounting holes and screws. A protective shell is installed inside the mounting holes, and a fixing post is provided at the bottom of the protective shell. A locking block is provided on the side of the fixing post, and a locking groove is provided on the inner wall of the mounting holes. The locking block is locked in the locking groove to protect the screws.

[0006] Furthermore, the protective shell includes multiple stepped fixing plates, the height difference between the upper and lower fixing plates forms a mounting groove, the inner wall of the mounting hole is provided with a sealing groove that matches the mounting groove, and the fixing plate is embedded in the sealing groove to improve the sealing performance of the protective shell.

[0007] Furthermore, the screw is provided with a sliding groove, and a sliding rod is provided in the sliding groove. The diameter of the sliding rod gradually increases in the direction away from the screw, and the end of the sliding rod extends out of the sliding groove. A limiting rod is provided on the side of the screw, and the limiting rod abuts against the side of the sliding rod. The limiting rod and the sliding rod are in a transmission cooperation to improve the installation strength of the screw.

[0008] Furthermore, a limiting groove is provided on the inner wall of the sliding groove, a limiting block is provided on the side of the sliding rod, the end of the limiting block is located in the limiting groove, and an elastic element is provided between the limiting block and the inner wall of the limiting groove to realize the reset of the sliding rod.

[0009] Furthermore, a limiting plate is provided outside the limiting rod.

[0010] Furthermore, a rubber block is provided inside the screw, and an oil storage cavity is provided inside the rubber block. A valve structure is provided on the rubber block, and the valve structure is connected to the oil storage cavity. The valve structure is normally closed and opens under pressure to achieve the sealing of the oil storage cavity and the one-way supply of lubricating oil.

[0011] Furthermore, the screw has a fixing groove, the inner wall of the fixing groove has a recess, and the outer side of the rubber block has a retaining ring, which is engaged in the recess to achieve the fixed installation of the rubber block.

[0012] Furthermore, the rubber block is provided with an oil inlet hole, and a rubber plug is installed inside the oil inlet hole.

[0013] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0014] 1. In this utility model, the screws are protected by the snap-fit ​​between the protective shell and the slot in the mounting hole, avoiding external impact, mud and water erosion and rust, while improving the overall appearance and aesthetics of the cover plate.

[0015] 2. In this utility model, a rubber block with an oil storage cavity and a valve structure is provided inside the top of the screw, which can automatically release lubricating oil under vibration pressure, realize long-term self-lubrication of the threaded pair, reduce wear and abnormal noise, and extend service life;

[0016] 3. In this utility model, through the transmission cooperation of the sliding rod and the limiting rod, the mechanical locking force between the cover plate and the connecting parts is further enhanced during the screw screwing process, which significantly improves the installation strength and anti-vibration loosening ability of the cover plate. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the ball joint cover plate for the automotive steering system in this utility model;

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of a local structure at point A;

[0020] Figure 3 for Figure 1 Enlarged schematic diagram of the local structure at point B.

[0021] In the diagram: 1-Main body; 2-Mounting hole; 3-Screw; 4-Protective shell; 5-Fixing post; 6-Clocking block; 7-Clocking groove; 8-Fixing plate; 9-Mounting groove; 10-Sealing groove; 11-Sliding groove; 12-Sliding rod; 13-Limiting rod; 14-Limiting groove; 15-Limiting block; 16-Elastic element; 17-Limiting plate; 18-Rubber block; 19-Oil reservoir; 20-Valve structure; 21-Fixing groove; 22-Groove; 23-Snap ring; 24-Oil inlet; 25-Rubber plug. Detailed Implementation

[0022] like Figures 1 to 3As shown, this utility model is a ball joint cover for an automotive steering system, including a main body. The end of the main body is provided with a mounting hole 2, and the cover is fixedly installed by means of screws 3 through the mounting hole 2.

[0023] A protective shell 4 is installed inside the mounting hole 2. Several fixing posts 5 are evenly arranged around the bottom of the protective shell 4. The fixing posts 5 are provided with locking blocks 6 on their sides. The inner wall of the mounting hole 2 is provided with corresponding locking grooves 7. Through the locking engagement of the locking blocks 6 and the locking grooves 7, the protective shell 4 is stably installed, thereby providing external protection for the screws 3 and improving the aesthetic appearance of the cover plate.

[0024] Both the sides of the card block 6 and the card slot 7 are beveled to facilitate the insertion and release of the card block 6.

[0025] The protective shell 4 is composed of multiple stepped fixing plates 8. The height difference between the upper and lower fixing plates 8 forms a mounting groove 9, which fits and matches the sealing groove 10 on the inner wall of the mounting hole 2, effectively improving the sealing performance of the installation.

[0026] The top of the screw 3 is provided with a fixing groove 21, and the slot of the screw 3 is provided on the inner wall of the fixing groove 21.

[0027] The fixed groove 21 is equipped with a rubber block 18, and an oil storage cavity 19 is opened in the rubber block 18. A valve structure 20 communicating with the oil storage cavity 19 is provided on the surface. The valve structure 20 is closed in the natural state to ensure that the oil storage cavity 19 is sealed, and opens when pressure is applied to realize the one-way supply of lubricating oil. The lubrication mechanism is specifically manifested as follows: When the car is running, the steering system will vibrate continuously. This vibration will cause a small relative movement between the cover plate and the connecting part, thereby repeatedly and slightly squeezing and relaxing the rubber block 18. The squeezing causes the oil pressure in the oil storage cavity 19 to rise, the valve structure 20 opens, and the lubricating oil is squeezed into the fixed groove 21. The lubricating oil will spread outward along the fixed groove 21 by means of capillary action (the physical phenomenon of liquid naturally diffusing in small gaps), thereby realizing the lubrication and rust prevention of the screw 3.

[0028] The rubber block 18 is secured by the outer retaining ring 23 and the groove 22 on the inner wall of the screw 3 fixing slot 21, ensuring working stability.

[0029] The rubber block 18 is provided with an oil inlet 24 and a rubber plug 25 for easy replenishment of lubricating oil later.

[0030] The rubber block 18 has a certain degree of elasticity, which can absorb vibration and impact, prevent the screw 3 from loosening due to vibration, and improve the reliability and safety of the connection.

[0031] The bottom of the screw 3 is provided with a sliding groove 11, and a sliding rod 12 is installed in the groove. The diameter of the sliding rod 12 gradually increases in the direction away from the screw 3, and the end of the sliding rod 12 extends out of the groove. The two sides of the screw 3 are provided with sliding holes, and a limiting rod 13 is installed in the sliding holes. The limiting rod 13 abuts against the side of the sliding rod 12.

[0032] When connecting the cover plate and the connecting component, during the screw 3 screwing in, the sliding rod 12 slides in the sliding groove 11, and at the same time, the end of the limiting rod 13 slides on the surface of the sliding rod 12. Simultaneously, the sliding rod 12 slides in the sliding hole. Through the sliding of the sliding hole, it engages with the connecting component, thereby improving the connection strength of the screw 3.

[0033] The inner wall of the sliding groove 11 is provided with a limiting groove 14, and the side of the sliding rod 12 is provided with a limiting block 15 embedded in the limiting groove 14. An elastic element 16 is provided between the limiting block 15 and the groove wall. The elastic element 16 can be set as a spring to realize the automatic reset of the sliding rod 12.

[0034] When screw 3 is screwed in, the limiting block 15 compresses the spring. When screw 3 is screwed out, the spring returns to its original shape, causing the sliding rod 12 to return to its original position.

[0035] A limit plate 17 is also installed on the outside of the limit rod 13 to limit the movement of the limit rod 13.

[0036] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A ball joint cover for an automotive steering system, comprising a main body, wherein the main body is fixedly installed by mounting holes and screws, characterized in that: A protective shell is provided inside the mounting hole. A fixing post is provided at the bottom of the protective shell. A locking block is provided on the side of the fixing post. A locking groove is provided on the inner wall of the mounting hole. The locking block is locked in the locking groove to protect the screw.

2. The ball joint cover for an automotive steering system according to claim 1, characterized in that: The protective shell includes multiple stepped fixing plates, the height difference between the upper and lower fixing plates forms a mounting groove, the inner wall of the mounting hole is provided with a sealing groove that matches the mounting groove, and the fixing plate is embedded in the sealing groove to improve the sealing performance of the protective shell.

3. The ball joint cover for an automotive steering system according to claim 1, characterized in that: The screw has a sliding groove, and a sliding rod is provided in the sliding groove. The diameter of the sliding rod gradually increases in the direction away from the screw, and the end of the sliding rod extends out of the sliding groove. A limiting rod is provided on the side of the screw, and the limiting rod abuts against the side of the sliding rod. The limiting rod and the sliding rod are in a transmission cooperation to improve the installation strength of the screw.

4. The ball joint cover for an automotive steering system according to claim 3, characterized in that: The inner wall of the sliding groove is provided with a limiting groove, and the side of the sliding rod is provided with a limiting block. The end of the limiting block is located in the limiting groove, and an elastic element is provided between the limiting block and the inner wall of the limiting groove to realize the reset of the sliding rod.

5. The ball joint cover for an automotive steering system according to claim 3, characterized in that: The limiting rod is provided with a limiting plate.

6. The ball joint cover for an automotive steering system according to claim 1, characterized in that: The screw contains a rubber block, which contains an oil reservoir. The rubber block has a valve structure that communicates with the oil reservoir. The valve structure is normally closed and opens under pressure to achieve sealing of the oil reservoir and unidirectional supply of lubricating oil.

7. The ball joint cover for an automotive steering system according to claim 6, characterized in that: The screw has a fixing groove, the inner wall of the fixing groove has a recess, and the outer side of the rubber block has a retaining ring, which is engaged in the recess to achieve the fixed installation of the rubber block.

8. The ball joint cover for an automotive steering system according to claim 6, characterized in that: The rubber block is provided with an oil inlet hole, and a rubber plug is provided inside the oil inlet hole.

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