一种快拆式液压减震器底阀总成
By combining quick-release holes with the push-pull protrusion structure and guide groove, the problem of cumbersome disassembly of the bottom valve of the existing shock absorber is solved, realizing fast and reliable disassembly and assembly, and reducing maintenance costs and risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FULESI AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-17
AI Technical Summary
The disassembly of the existing shock absorber bottom valve is cumbersome, requires tools and is prone to damaging the valve seat. The spring retainer is also prone to falling off and being lost, resulting in high maintenance costs and low efficiency.
A quick-release hydraulic shock absorber bottom valve assembly is designed, which adopts a quick-release hole and push-up protrusion structure, combined with spring limiting steps and circumferential positioning grooves, to achieve quick disassembly without tools, and ensures accurate assembly through guide grooves and guide protrusions.
It enables a fast and reliable disassembly process, reduces operational difficulty and maintenance costs, avoids component loss and assembly errors, and improves maintenance efficiency and reliability.
Smart Images
Figure CN224515778U_ABST
Abstract
Claims
1. A quick-release hydraulic shock absorber bottom valve assembly, comprising a valve seat (1), a valve stem (2), a spring plate (4), a spring retainer (5), and a throttle valve plate (3), wherein the inner wall of the valve seat (1) is provided with an annular groove (104), and the spring retainer (5) is embedded in the annular groove (104), characterized in that: The valve seat (1) has at least two quick-release holes (105) in the circumferential direction on its side wall. The quick-release holes (105) penetrate the side wall of the valve seat (1) radially and communicate with the annular groove (104). The outer periphery of the spring retainer (5) is provided with push protrusions (501) that correspond one-to-one with the quick release holes (105), and the push protrusions (501) can extend out or retract from the quick release holes (105). The valve stem (2) has a spring limiting step (201) at one end near the spring plate (4), the inner ring of the spring plate (4) abuts against the spring limiting step (201), and the outer periphery abuts against the spring retainer (5).
2. A fast-disassembly hydraulic shock absorber bottom valve assembly according to claim 1, characterized in that: One end of the valve seat (1) is provided with an axial connection part (101), and the annular groove (104) and quick-release hole (105) are provided on the inner wall of the axial connection part (101).
3. A fast-disassembly hydraulic shock absorber bottom valve assembly according to claim 2, characterized in that: The push-up protrusion (501) is hemispherical, the diameter of the push-up protrusion (501) is adapted to the diameter of the quick-release hole (105), and the height of the push-up protrusion (501) is less than 1 / 2 of the side wall thickness of the axial connection part (101).
4. A quick-release hydraulic shock absorber foot valve assembly according to claim 3, characterized in that: The bottom of the annular groove (104) is provided with a circumferentially distributed retainer positioning groove (106), and the outer ring of the spring retainer (5) is provided with a circumferential positioning protrusion (502) that is adapted to the retainer positioning groove (106). The circumferential positioning protrusion (502) is embedded in the retainer positioning groove (106).
5. A quick-release hydraulic shock absorber base valve assembly according to claim 1, characterized in that: The valve seat (1) is provided with a first assembly cavity (102) and a second assembly cavity (103) in sequence along the axial direction. The spring plate (4) and the spring retainer (5) are provided in the first assembly cavity (102). The throttle valve plate (3) is provided in the second assembly cavity (103). The valve stem (2) passes through the first assembly cavity (102) and the second assembly cavity (103).
6. A quick-release hydraulic shock absorber base valve assembly according to claim 5, characterized in that: The inner diameter of the first assembly cavity (102) is greater than the inner diameter of the second assembly cavity (103), and the inner diameter of the second assembly cavity (103) is greater than the outer diameter of the valve stem (2).
7. A quick-release hydraulic shock absorber base valve assembly according to claim 6, characterized in that: The inner wall of the second assembly cavity (103) is provided with at least two guide grooves (107) along the axial direction. One end of the guide groove (107) extends to the first assembly cavity (102). The outer periphery of the valve stem (2) is provided with a guide protrusion (202) that is adapted to the guide groove (107). The guide protrusion (202) slides with the guide groove (107).
8. A quick-release hydraulic shock absorber base valve assembly according to claim 7, characterized in that: The cross-section of the guide groove (107) is rectangular, and the guide protrusion (202) and the guide groove (107) are in clearance fit.