Dustproof guider on shock absorber
By installing a dust filter structure on the guide, the problem of oil hole blockage caused by impurities and dust mixed in with hydraulic oil is solved, enabling smooth operation and convenient maintenance of the shock absorber.
Patent Information
- Application Number
- CN202520158774.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Impurities and dust can get into the hydraulic oil during use, causing blockages in the oil holes and affecting the smooth operation of the shock absorber.
A dust filter structure is designed on the guide of the shock absorber. The dust filter is fixed by the positioning main groove and the limiting groove at the oil hole opening to prevent dust and oil from entering. The quick-release design makes it easy to clean and replace.
It effectively prevents oil circuit blockage, ensures smooth operation of the shock absorber, and facilitates the cleaning and replacement of the dust filter.
Smart Images

Figure CN223594846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guide technology, specifically a dustproof guide for a shock absorber. Background Technology
[0002] A shock absorber is a device used to suppress the oscillations caused by the rebound of the spring after absorbing shock and the impact from the road surface. The shock absorber assembly consists of the shock absorber, lower spring pad, dust cover, spring, shock absorber pad, upper spring pad, spring seat, bearing, top rubber, and nut. The guide is one of the important parts of the shock absorber. It plays a good guiding role in the movement of the piston rod in the shock absorber, ensuring the smoothness of the piston during operation. At the same time, during the piston movement, the working cylinder and the oil reservoir are connected through the oil hole of the guide.
[0003] Over time, hydraulic oil can become contaminated with impurities and dust, which can clog oil holes, obstruct the oil flow, and cause uneven operation, resulting in poor shock absorber performance. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a dustproof guide for a shock absorber, solving the problems mentioned in the background.
[0005] This utility model provides the following technical solution: including: a guide body, a guide slot provided in the cavity of the guide body, and an annular groove fixed at the bottom of the guide body.
[0006] Also includes:
[0007] An oil hole is formed on the side wall of the guide body. A spacing support rod is installed in the groove of the oil hole, and the outer wall of the spacing support rod is fixed to the part with a dustproof filter screen.
[0008] The positioning main groove is opened at the opening of the oil hole. A limit slot is opened in the groove of the positioning main groove, and the limit slot is connected to and perpendicular to the positioning main groove.
[0009] A positioning bottom groove is formed at the bottom of the positioning main groove, and a limit column is slidably installed inside the positioning bottom groove.
[0010] Furthermore, the spacing support rods have a cross-shaped structure, and the edge of the dust filter can slide along the groove of the positioning main groove.
[0011] Furthermore, an adjustment slot is provided at the center of the cross of the spacing support rod, and a slotted handle is fixed in the slot.
[0012] Furthermore, multiple sets of springs are installed inside the cavity of the positioning groove, and the top of the springs is connected to the limiting column.
[0013] Furthermore, the limiting column can slide along the groove of the positioning bottom groove.
[0014] Furthermore, the thickness of the limiting slot matches the thickness of the spacing support rod.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This application features a ring-shaped positioning main groove at the opening of the oil hole. A spacing support rod can slide into the positioning main groove, allowing the dust filter part, which is fixedly connected to the spacing support rod, to cover the opening of the oil hole. This blocks oil and dust, preventing the oil passage from being blocked and ensuring smooth operation of the shock absorber. Furthermore, the spacing support rod and dust filter part adopt a quick-release design. The spacing support rod can be rotated and snapped into the groove of the limiting slot. The limiting column can limit the spacing support rod, ensuring that the dust filter part is in a stable state after the spacing support rod is installed. This also facilitates subsequent cleaning and replacement of the dust filter part. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an enlarged view of the oil hole opening of this utility model;
[0019] Figure 3 This is an enlarged view of the limiting slot of this utility model;
[0020] Figure 4 This is an enlarged view of the connection between the limiting column and the spring part of this utility model.
[0021] In the diagram: 1. Guide body; 2. Guide slot; 3. Oil hole; 4. Annular groove; 5. Positioning main groove; 6. Positioning bottom groove; 7. Limiting slot; 8. Limiting column; 9. Spring; 10. Spacing support rod; 11. Dustproof filter; 12. Adjustment slot; 13. Slotted handle. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4The system includes: a guide body 1, a guide slot 2 provided inside the cavity of the guide body 1, and an annular groove 4 fixed to the bottom of the guide body 1. Multiple sets of oil holes 3 are provided through the side wall of the guide body 1, and the oil holes 3 are distributed in an annular pattern at equal intervals. Cross-shaped spacing support rods 10 are installed at the openings of the oil holes 3. Dust filter parts 11 are installed on the surface of the spacing support rods 10, and filtration is completed through the dust filter parts 11. The dust filter parts 11 form an annular structure to cover the openings of the oil holes 3. A portion of the distal end of the spacing support rods 10 protrudes outwards, allowing the spacing support rods 10 to be positioned... The slot 5 slides within the slot, and the positioning main slot 5 is opened at the opening of the oil hole 3. The size of the spacing support rod 10 is adapted to the slot of the positioning main slot 5, so that the spacing support rod 10 can move longitudinally within the slot of the positioning main slot 5. At the same time, a limiting slot 7 communicating with the positioning main slot 5 is opened on one side of the positioning main slot 5. The limiting slot 7 is perpendicular to the positioning main slot 5. The thickness of the limiting slot 7 matches the thickness of the spacing support rod 10. The spacing support rod 10, which extends into the positioning main slot 5, can move laterally directly at the opening of the limiting slot 7. The far end of the spacing support rod 10 can be inserted into the slot of the limiting slot 7.
[0024] A positioning groove 6 is formed at the bottom of the positioning main groove 5. A limiting post 8 is slidably installed inside the positioning groove 6, and multiple sets of spring parts 9 are installed on the inner wall of the positioning groove 6. When the limiting post 8 is compressed, the spring parts 9 deform, causing the limiting post 8 to retract into the groove of the positioning groove 6. Conversely, when the pressure acting on the surface of the limiting post 8 is released, the limiting post 8 returns to its original position, blocking the opening of the limiting slot 7. This effectively prevents items stuck in the limiting slot from being removed. The spacing support rod 10 in the groove 7 is constrained to prevent the spacing support rod 10 and the dust filter part 11 from accidentally falling off. An adjustment slot 12 is provided at the center of the cross of the spacing support rod 10. A slotted handle 13 is fixed in the groove of the adjustment slot 12. The dust filter part 11 can be reinforced by the spacing support rod 10 to improve the stability of the dust filter part 11. At the same time, the adjustment slot 12 and the slotted handle 13 also make it convenient for tools to rotate the spacing support rod 10, which is easy to disassemble and assemble the dust filter part 11 later.
[0025] 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 dust guide for a shock absorber, comprising: The guide body (1), the guide slot (2) provided in the cavity of the guide body (1), and the annular groove (4) fixed at the bottom of the guide body (1) Its characteristic is that it further includes: An oil hole (3) is opened on the side wall of the guide body (1). A spacing support rod (10) is installed in the groove of the oil hole (3). The outer wall of the spacing support rod (10) is fixed to the part with a dustproof filter screen (11). The positioning main groove (5) is opened at the opening of the oil hole (3). The positioning main groove (5) has a limiting groove (7) inside it, and the limiting groove (7) is connected to and perpendicular to the positioning main groove (5). A positioning bottom groove (6) is formed at the bottom of the positioning main groove (5), and a limiting column (8) is slidably installed inside the positioning bottom groove (6).
2. The dustproof guide on a shock absorber according to claim 1, characterized in that, The spacing support rod (10) has a cross-shaped structure, and the edge of the dust filter part (11) can slide along the groove of the positioning main groove (5).
3. A dustproof guide for a shock absorber according to claim 1, characterized in that, An adjustment slot (12) is provided at the center of the cross of the spacing support rod (10), and a slotted handle (13) is fixed in the slot of the adjustment slot (12).
4. A dustproof guide on a shock absorber according to claim 1, characterized in that, Multiple sets of spring parts (9) are installed inside the cavity of the positioning bottom groove (6), and the top of the spring part (9) is connected to the limiting column (8).
5. A dustproof guide for a shock absorber according to claim 1, characterized in that, The limiting column (8) can slide along the groove of the positioning bottom groove (6).
6. A dustproof guide for a shock absorber according to claim 1, characterized in that, The groove thickness of the limiting slot (7) matches the thickness of the spacing support rod (10).