Wear-resistant shaft sleeve for automobile seat horizontal regulator

Abstract

The utility model belongs to the technical field of automobile parts, and discloses a wear-resistant shaft sleeve for an automobile seat horizontal regulator, which comprises a shell, shaft sleeve bodies are symmetrically arranged in the shell, a shaft tube is mounted between the two shaft sleeve bodies, and an oil storage tank is arranged on the inner wall surface of each shaft sleeve body. The end faces of the two sides of the shaft sleeve body are fixedly connected with elastic buffer rings. By means of the oil storage groove of the spiral structure in the shaft sleeve body, a proper amount of lubricating oil can be stored and evenly smeared between a shaft and the shaft sleeve, friction resistance between the shaft and the shaft sleeve is reduced, and seat adjustment is smoother and saves labor. Meanwhile, noise generated by friction is reduced, the riding comfort is improved, it is ensured that the shaft sleeve does not displace in the working process through positioning installation of the installation block and the limiting groove, the precision and stability of seat adjustment are ensured, lubricating oil is supplemented into the oil storage groove through the oil injection hole, and the maintenance difficulty of the shaft sleeve is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically a wear-resistant bushing for an automotive seat level adjuster. Background Technology

[0002] During the use of car seats, the leveling mechanism operates frequently to meet passengers' needs for adjusting the seat position. As a key friction pair component in the leveling mechanism, the bushing's performance directly affects the smoothness and durability of seat adjustments. Most existing car seat leveling mechanism bushings are made of ordinary plastic or rubber, which are prone to wear and deformation under frequent seat adjustments. This not only causes abnormal noises and jamming during seat adjustments, affecting ride comfort, but also reduces the transmission accuracy of the leveling mechanism and shortens its lifespan. Furthermore, vibrations and bumps during vehicle operation, as well as temperature changes under different operating conditions, will accelerate the aging and damage of the bushing.

[0003] Therefore, a wear-resistant bushing for an automotive seat level adjuster is proposed to address the above-mentioned problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a wear-resistant bushing for an automotive seat level adjuster, which improves the wear resistance of the bushing, reduces wear and deformation, simplifies the installation and maintenance process, and reduces repair and maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant bushing for an automotive seat level adjuster, comprising a housing, bushing bodies symmetrically arranged inside the housing, a shaft tube installed between two sets of bushing bodies, an oil reservoir groove formed on the inner wall of the bushing body, elastic buffer rings fixedly connected to both end faces of the bushing body, and a positioning groove adapted to the elastic buffer rings formed inside the housing.

[0006] Preferably, the oil storage tank is spiral in shape, and the spiral direction is adapted to the rotation direction of the shaft during operation.

[0007] Preferably, mounting blocks are symmetrically fixedly connected to the outer surface of the bushing body, and limiting grooves adapted to the mounting blocks are symmetrically opened inside the housing.

[0008] Preferably, the mounting block has an L-shaped oil injection hole inside, and one end of the oil injection hole penetrates the surface of the bushing body and is connected to the oil reservoir.

[0009] Preferably, a sealing block is slidably connected to the side of the mounting block near the oil injection hole, and one end of the sealing block is located inside the oil injection hole. The inner end of the sealing block has a conical structure, and the oil injection hole is provided with an annular protrusion that matches the sealing block.

[0010] Preferably, the outer tube of the sealing block is fixedly connected to a fixing cap, and the mounting block has an insertion groove inside that is adapted to the fixing cap.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model utilizes an oil reservoir with an internal spiral structure within the bushing body to store an appropriate amount of lubricating oil and evenly distribute it between the shaft and bushing. This reduces frictional resistance between the shaft and bushing, making seat adjustment smoother and less strenuous. Simultaneously, it reduces noise generated by friction, improving ride comfort. The mounting block and limiting groove ensure the bushing will not shift during operation, guaranteeing the accuracy and stability of seat adjustment. Lubricating oil is replenished into the reservoir through the oil filling hole, reducing the difficulty of bushing maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the mounting block and elastic buffer ring in this utility model;

[0015] Figure 3 This is a cross-sectional view of the bushing body of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Housing; 2. Bushing body; 3. Shaft tube; 4. Mounting block; 5. Positioning groove; 6. Limiting groove; 7. Elastic buffer ring; 8. Oil injection hole; 9. Oil reservoir; 10. Sealing block; 11. Fixing cover. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 4As shown, this utility model provides a wear-resistant bushing for an automotive seat level adjuster, including a housing 1. Bushing bodies 2 are symmetrically arranged inside the housing 1, and a shaft tube 3 is installed between the two sets of bushing bodies 2. An oil reservoir 9 is formed on the inner wall of the bushing body 2. Elastic buffer rings 7 are fixedly connected to both end faces of the bushing body 2. A positioning groove 5, adapted to the elastic buffer ring 7, is formed inside the housing 1. The oil reservoir 9 can store an appropriate amount of lubricating oil, which can be evenly distributed on the contact surface between the shaft and the bushing during shaft rotation, forming a good lubricating film. When the bushing is installed in the level adjuster, the elastic buffer ring 7 is inserted into the positioning groove 5 and tightly fitted inside the housing 1, which can play a role in buffering and shock absorption, absorbing vibrations during seat adjustment and vehicle driving, and reducing the impact on the bushing.

[0020] It should be noted that the bushing body 2 adopts a multi-layer composite structure, and its inner layer is provided with a friction-reducing layer, which is made of polytetrafluoroethylene material.

[0021] The oil reservoir 9 is spiral in shape, and the spiral direction is adapted to the rotation direction of the shaft when it is working, so that the lubricating oil inside the oil reservoir 9 can be evenly applied to the shaft surface when the shaft rotates.

[0022] like Figures 1 to 4 As shown, mounting blocks 4 are symmetrically fixedly connected to the outer surface of the bushing body 2, and limiting grooves 6 that are adapted to the mounting blocks 4 are symmetrically opened inside the housing 1. When the bushing is installed, the mounting blocks 4 are inserted into the limiting grooves 6 to achieve precise positioning and installation of the bushing, preventing the bushing from rotating circumferentially or moving axially during operation, and ensuring stable cooperation between the bushing and the mating parts.

[0023] like Figures 1 to 4 As shown, the mounting block 4 has an L-shaped oil injection hole 8 inside, and one end of the oil injection hole 8 passes through the surface of the bushing body 2 and is connected to the oil reservoir 9. Lubricating oil can be added from the outside of the bushing into the oil reservoir 9 through the oil injection hole 8 without disassembling the bushing body 2, thus improving the convenience of bushing maintenance.

[0024] A sealing block 10 is slidably connected to the side of the mounting block 4 near the oil filling hole 8, and one end of the sealing block 10 is located inside the oil filling hole 8. The inner end of the sealing block 10 has a tapered structure, and the oil filling hole 8 is provided with an annular protrusion that matches the sealing block 10. The sealing block 10 can seal the oil filling hole 8 to prevent external impurities from entering the oil reservoir 9 through the oil filling hole 8 and affecting the performance of the bushing.

[0025] The outer tube of the sealing block 10 is fixedly connected to a fixing cover 11, and the mounting block 4 has an insertion groove that matches the fixing cover 11. The fixing cover 11 is made of rubber, and the fixing cover 11 makes it easy to pull one side of the sealing block 10 to adjust the position of the sealing block 10.

[0026] Working principle and process: When the car seat is leveled, the shaft is installed inside the shaft tube 3. The shaft of the level adjuster rotates inside the bushing body 2 through the shaft tube 3. Due to the wear-resistant layer set in the inner layer of the bushing body 2, the friction between the shaft and the bushing is small, making the adjustment action smoother. The lubricating oil stored in the oil reservoir 9 is evenly distributed on the contact surface between the shaft and the bushing under the action of the shaft movement, forming a good lubricating film, further reducing friction and wear. When the bushing is subjected to external vibration and impact, the elastic buffer ring 7 undergoes elastic deformation, absorbing and buffering energy, reducing the impact of vibration on the bushing body 2 and the level adjuster. Through the cooperation of the mounting block 4 and the limiting groove 6, it is ensured that the bushing always maintains an accurate position during the operation, ensuring the accuracy and stability of the seat adjustment.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant bushing for a horizontal adjuster of a car seat, comprising a housing (1), characterized in that: The inside of the shell (1) is symmetrically provided with a shaft sleeve body (2), two groups of the shaft sleeve bodies (2) are mounted with a shaft pipe (3), the inner wall surface of the shaft sleeve body (2) is provided with an oil storage groove (9), and the both side end surfaces of the shaft sleeve body (2) are fixedly connected with elastic buffer rings (7); the inside of the shell (1) is provided with positioning grooves (5) matched with the elastic buffer rings (7).

2. The wear-resistant bushing for a horizontal adjuster of an automobile seat according to claim 1, characterized by: The shape of the oil storage groove (9) is spiral, and the spiral direction is matched with the rotating direction of the shaft rod during working.

3. The wear sleeve for a horizontal adjuster of an automotive seat according to claim 1, characterized in that: The outer surface of the shaft sleeve body (2) is symmetrically fixedly connected with mounting blocks (4), and the inside of the shell (1) is symmetrically provided with limiting grooves (6) matched with the mounting blocks (4).

4. The wear sleeve for a horizontal adjuster of an automotive seat according to claim 3, characterized in that: The inside of the mounting block (4) is provided with an oil injection hole (8) in an L-shaped structure, one end of the oil injection hole (8) penetrates through the surface of the shaft sleeve body (2) and is in communication with the oil storage groove (9).

5. The wear sleeve for a horizontal adjuster of an automotive seat according to claim 4, characterized in that: The side of the mounting block (4) close to the oil injection hole (8) is slidably connected with a plugging block (10), one end of the plugging block (10) is located in the oil injection hole (8), the inner side end of the plugging block (10) is in a conical structure, and the oil injection hole (8) is provided with a ring-shaped convex block matched with the plugging block (10).

6. The wear sleeve for a horizontal adjuster of an automotive seat according to claim 5, characterized in that: The outer side tube of the plugging block (10) is fixedly connected with a fixed cover (11), and the inside of the mounting block (4) is provided with an embedding groove matched with the fixed cover (11).

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