一种液压式减震器
By introducing adjustable end cap bolts and pressure plate structures into the hydraulic shock absorber, the problems of insufficient adaptability and fatigue relaxation caused by fixed spring precompression are solved, thus optimizing load adaptability and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SHUZHENG SHOCK ABSORBER CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional hydraulic shock absorbers have a fixed spring precompression, which makes it difficult to adapt to load changes, resulting in decreased shock absorption or premature component failure. Furthermore, the lack of a convenient compensation mechanism for spring fatigue and relaxation leads to high maintenance costs.
By incorporating adjustable end cap bolts and pressure plate structures in the hydraulic shock absorber, the pre-compression of the spring can be adjusted to accommodate different load requirements and compensate for spring fatigue losses.
This technology enables dynamic adjustment of spring precompression based on load changes, improving the adaptability of the shock absorber, extending component life, and reducing maintenance costs.
Smart Images
Figure CN224515770U_ABST
Abstract
Claims
1. Hydraulic shock absorber comprising an outer tube (1), characterized in that: The outer cylinder (1) is provided with a first groove (2), and the inner cylinder (3) is slidably arranged in the first groove (2). The inner cylinder (3) is provided with a second groove (4), and the piston tube (5) is movably arranged in the second groove (4). The piston tube (5) is fixedly installed in the first groove (2). A damping hole (6) is provided on one side of the piston tube (5). A plug (7) is fixedly provided on the side of the piston tube (5) close to the inner cylinder (3). An end cap bolt (8) is provided on the side of the inner cylinder (3) away from the outer cylinder (1). A spring (9) is provided between the end cap bolt (8) and the piston tube (5). A piston ring (10) is fixedly installed on the side of the inner cylinder (3) located in the first groove (2).
2. A hydraulic shock absorber according to claim 1, characterized in that: A dust cover (11) is fixedly installed on the outer wall of the outer cylinder (1) near the inner cylinder (3), and a sealing ring (12) is fixedly installed on the inner wall surface of the first groove (2) and the outer wall surface of the piston tube (5).
3. A hydraulic shock absorber according to claim 2, characterized in that: The piston tube (5) is filled with compressed gas, and the spring (9) is located in the second groove (4).
4. A hydraulic shock absorber according to claim 3, characterized in that: The end cap bolt (8) includes an end cap bolt base (801), on which a screw (802) is threaded. A connecting rod (803) is fixedly provided on the side of the screw (802) near the piston tube (5), and a pressure plate (804) is fixedly provided on the end of the connecting rod (803) away from the screw (802).
5. A hydraulic shock absorber according to claim 4, characterized in that: The end cap bolt base (801) is fixedly installed in the first groove (2).
6. A hydraulic shock absorber according to claim 5, characterized in that: The connecting rod (803) moves through the end cap bolt base (801).