A protective structure for a dual-cavity front shock absorber
By designing a combined structure of buffer seat, guide tube and piston seat in the shock absorber, the problems of support rod wear and impact are solved, and the safety and durability of the shock absorber are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RETTER VEHICLE PARTS
- Filing Date
- 2025-09-19
- Publication Date
- 2026-07-17
Smart Images

Figure CN224515784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of shock absorbers, specifically a protective structure for a dual-cavity front shock absorber. Background Technology
[0002] Shock absorbers are used to suppress the oscillations caused by the rebound of the spring after absorbing shock and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride smoothness of the car. When driving over uneven roads, although the shock-absorbing spring can filter out the vibrations from the road surface, the spring itself will still have reciprocating motion. Shock absorbers are used to suppress this spring bounce.
[0003] However, when existing shock absorbers are in use, the support rod of the shock absorber is prone to contact with the side walls at both ends of the shock absorber, which will cause wear and impact, resulting in damage to the entire shock absorber and reducing the safety of the shock absorber during use. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a protective structure for a dual-cavity front shock absorber. This solves the problem that during use, the support rod of the shock absorber easily comes into contact with the side walls at both ends of the shock absorber, causing wear and impact, resulting in damage to the entire shock absorber and reducing its safety during use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for a dual-cavity front shock absorber, comprising a working cylinder and a connecting cylinder. The connecting cylinder is slidably connected to the left end of the working cylinder. A buffer seat and a third connecting seat are respectively fixedly installed inside the end sidewalls of the working cylinder and the connecting cylinder. An installation tube is fixedly installed inside the working cylinder. A guide tube is fixedly installed at the left end of the installation tube. A spring support seat is fixedly sleeved on the outside of the guide tube. A large spring is fixedly connected between the spring support seat and the third connecting seat. A first connecting seat is slidably connected to the left end of the installation tube. A buffer spring is fixedly installed between the first connecting seat and the buffer seat. A first piston seat is fixedly installed at the left end of the first connecting seat. An adjusting support rod is provided between the buffer seat and the first connecting seat. One end of the adjusting support rod is fixedly connected to the buffer seat, and the first connecting seat is slidably sleeved on the adjusting support rod.
[0006] Preferably, a locking tube is fixedly installed at the right end of the third connecting seat, a guide rod is fixedly installed inside the locking tube, a second connecting seat is fixedly installed at the right end of the guide rod, a second piston seat is fixedly installed at the right end of the second connecting seat, and the right end of the second piston seat is slidably connected to the inside of the guide tube, thereby facilitating the buffering of the movement of the connecting cylinder.
[0007] Preferably, the left end of the mounting tube is T-shaped, and the inner diameter of the left end is larger than the inner diameter of the right end, thereby preventing the position of the first piston seat from becoming unstable.
[0008] Preferably, a skeleton oil seal is fixedly sleeved inside the side wall of the working cylinder, and a dust seal is fixedly sleeved between the skeleton oil seal and the side wall of the working cylinder, thereby facilitating smoother movement between the working cylinder and the connecting cylinder.
[0009] This utility model provides a protective structure for a dual-cavity front shock absorber. It has the following beneficial effects:
[0010] 1. The protective structure of this dual-cavity front shock absorber, when using the dual-cavity front shock absorber, through the cooperation between the buffer seat, guide tube, large spring, buffer spring and second buffer seat, can form two buffer cavities in the working cylinder, which can effectively protect the inside of the working cylinder and prevent internal impact during shock absorption.
[0011] 2. The protective structure of this dual-chamber front shock absorber, when using the dual-chamber front shock absorber, through the cooperation between the first piston seat and the second piston seat, can effectively compress air through the piston, using the compressed air as resistance to improve the buffering force of the second piston seat and strengthen the protection of the working cylinder. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This utility model Figure 1 Enlarged structural diagram of section A.
[0014] In the diagram, 1. Working cylinder; 2. Buffer seat; 3. Buffer spring; 4. First piston seat; 5. First connecting seat; 6. Skeleton oil seal; 7. Adjusting support rod; 8. Guide tube; 9. Spring support seat; 10. Large spring; 11. Second piston seat; 12. Second connecting seat; 13. Guide rod; 14. Dust seal; 15. Locking tube; 16. Third connecting seat; 17. Mounting tube; 18. Connecting cylinder. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-2This utility model embodiment provides a protective structure for a dual-cavity front shock absorber, including a working cylinder 1 and a connecting cylinder 18. The connecting cylinder 18 is slidably connected to the left end of the working cylinder 1. A buffer seat 2 and a third connecting seat 16 are respectively fixedly installed inside the end sidewalls of the working cylinder 1 and the connecting cylinder 18. An installation tube 17 is fixedly installed inside the working cylinder 1. A guide tube 8 is fixedly installed at the left end of the installation tube 17. A spring support seat 9 is fixedly sleeved on the outside of the guide tube 8. A large spring 10 is fixedly connected between the spring support seat 9 and the third connecting seat 16. A first connecting seat 5 is slidably connected to the left end of the tube 17. A buffer spring 3 is fixedly installed between the first connecting seat 5 and the buffer seat 2. A first piston seat 4 is fixedly installed at the left end of the first connecting seat 5. An adjusting support rod 7 is provided between the buffer seat 2 and the first connecting seat 5. One end of the adjusting support rod 7 is fixedly connected to the buffer seat 2, and the first connecting seat 5 is slidably sleeved on the adjusting support rod 7. A locking tube 15 is fixedly installed at the right end of the third connecting seat 16. A guide rod 13 is fastened inside the locking tube 15. A piston seat 4 is fixedly installed at the right end of the guide rod 13. The second connecting seat 12 has a second piston seat 11 fixedly installed on its right end. The right end of the second piston seat 11 is slidably connected to the inside of the guide tube 8. The left end of the mounting tube 17 is T-shaped, and the inner diameter of the left end is larger than the inner diameter of the right end. A skeleton oil seal 6 is fixedly sleeved inside the side wall of the working cylinder 1. A dust seal 14 is fixedly sleeved between the skeleton oil seal 6 and the side wall of the working cylinder 1. When the shock absorber body is in use, when the vibration force is generated, the upper connecting cylinder 18 and the working cylinder 1 slide against each other, thereby enabling the internal third connecting seat 1 to slide. 6 drives the guide rod 13, which moves the second connecting seat 12. The second connecting seat 12 drives the second piston seat 11 to slide inside the guide tube 8, so that the gas generated by the compression compresses the first piston seat 4. The first piston seat 4 is resisted by the buffer spring 3, which slows down the movement of the first piston seat 4 and effectively reduces the movement rate of the second piston seat 11. At the same time, the large spring 10 exerts a leftward compressive force on the third connecting seat 16, which can effectively protect the interior of the shock absorber body.
[0017] It should be noted that, in this embodiment, as Figure 1-2As shown, when the shock absorber body is in use, the generated vibration force causes the upper connecting cylinder 18 and the working cylinder 1 to slide against each other, thereby enabling the internal third connecting seat 16 to drive the guide rod 13. The guide rod 13 moves the second connecting seat 12, and the second connecting seat 12 drives the second piston seat 11 to slide inside the guide tube 8, causing the compressed gas to compress the first piston seat 4. The first piston seat 4 is resisted by the buffer spring 3, which slows down the movement of the first piston seat 4 and effectively reduces the movement rate of the second piston seat 11. At the same time, the large spring 10 exerts a leftward compressive force on the third connecting seat 16, which effectively protects the interior of the shock absorber body. Furthermore, the piston rings inside the first piston seat 4 and the second piston seat 11 are made of modified PTFE material, which makes our shock absorber have a lower coefficient of friction.
[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A guard structure for a dual chamber front shock absorber, characterized by: The system includes a working cylinder (1) and a connecting cylinder (18). The connecting cylinder (18) is slidably connected to the inside of the left end of the working cylinder (1). A buffer seat (2) and a third connecting seat (16) are respectively fixedly installed inside the end sidewalls of the working cylinder (1) and the connecting cylinder (18). An installation tube (17) is fixedly installed inside the working cylinder (1). A guide tube (8) is fixedly installed at the left end of the installation tube (17). A spring support seat (9) is fixedly sleeved on the outside of the guide tube (8). The spring support seat (9) and the third connecting seat (18) are connected... 6) A large spring (10) is fixedly connected between them. The left end of the mounting tube (17) is slidably connected to a first connecting seat (5). A buffer spring (3) is fixedly installed between the first connecting seat (5) and the buffer seat (2). A first piston seat (4) is fixedly installed at the left end of the first connecting seat (5). An adjusting support rod (7) is provided between the buffer seat (2) and the first connecting seat (5). One end of the adjusting support rod (7) is fixedly connected to the buffer seat (2), and the first connecting seat (5) is slidably sleeved on the adjusting support rod (7).
2. The protective structure of a dual-chamber front shock absorber according to claim 1, wherein: A locking tube (15) is fixedly installed on the right end of the third connecting seat (16). A guide rod (13) is fixedly installed inside the locking tube (15). A second connecting seat (12) is fixedly installed on the right end of the guide rod (13). A second piston seat (11) is fixedly installed on the right end of the second connecting seat (12). The right end of the second piston seat (11) is slidably connected to the inside of the guide tube (8).
3. The protective structure of a dual-chamber front shock absorber according to claim 1, wherein: The left end of the mounting tube (17) is T-shaped, and the inner diameter of the left end is larger than the inner diameter of the right end.
4. The protective structure of a dual chamber front shock absorber according to claim 1, wherein: The working cylinder (1) has a skeleton oil seal (6) fixedly sleeved inside the side wall, and a dust seal (14) is fixedly sleeved between the skeleton oil seal (6) and the side wall of the working cylinder (1).