Piston buffering mechanism for shock absorber
By designing a piston buffer mechanism with a movable push rod and a return buffer spring in the shock absorber, the problem of the piston moving rapidly and violently on bumpy roads is solved. This achieves piston buffer protection and convenient disassembly and replacement, extending the service life of the shock absorber and reducing maintenance costs.
Patent Information
- Application Number
- CN202423172702.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing shock absorbers lack a buffer structure in the piston area during use, causing them to move rapidly and violently on bumpy roads, which can easily lead to damage and reduce their service life.
Design a piston buffer mechanism including a movable push rod and a reset buffer spring. The two sets of reset buffer springs are located on both sides of the extrusion piston to buffer the movement of the extrusion piston, and the connecting studs facilitate the disassembly and replacement of the components.
It effectively cushions the rapid movement of the piston, reduces wear, extends the service life of the shock absorber, and lowers maintenance and replacement costs.
Smart Images
Figure CN223578658U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to shock absorber technical field, especially a piston buffer mechanism for shock absorber. BACKGROUND
[0002] Shock absorber is used to restrain the shock of spring shock rebound and the impact from the road, is widely used in the car, is used for accelerating the attenuation of frame and body vibration to improve the ride comfort of the car, when passing through uneven road, although the shock absorbing spring can filter the vibration of the road, but the spring itself will have reciprocating motion, and the shock absorber is used to restrain the spring jumping.
[0003] At present, the existing shock absorber lacks buffer structure at the piston part when in use, when the vehicle encounters bumpy road, the piston will move relatively fast and violently, when used for a long time, the piston can be easily damaged, reducing the service life of the shock absorber. UTILITY MODEL CONTENT
[0004] The utility model discloses a piston buffer mechanism for shock absorber, which can solve the problem of piston damage when the vehicle encounters bumpy road.
[0005] To achieve the above object, the utility model provides the following technical scheme: a piston buffer mechanism for shock absorber, comprising a movable push rod and a reset type buffer spring, the movable push rod is provided with a piston;
[0006] The number of reset type buffer springs is two groups, and the two groups of reset type buffer springs are located on the two sides of the piston.
[0007] Preferably, the outer wall of the movable push rod is fixedly installed with an annular fixed cylinder, and the outer wall of the annular fixed cylinder is fixedly installed with a fixed cover.
[0008] Preferably, the inside of the movable push rod is provided with a threaded hole, the inner wall of the threaded hole is threadedly installed with a connecting stud, and the outer wall of the connecting stud is slidably installed with a limiting type annular pad. This arrangement facilitates the disassembly and maintenance of the assembled components, greatly reducing the maintenance cost.
[0009] Preferably, the outer wall of the connecting stud is slidably installed with a sliding sleeve and a piston, the number of sliding sleeves is two groups, and the adjacent side walls of the two groups of sliding sleeves are in contact with the two sides of the piston without being fixed.
[0010] Preferably, the outer wall of the sliding sleeve is sleeved with reset buffer springs, the number of the reset buffer springs is two groups, one group of the reset buffer springs is located between the fixed cover and the extrusion piston, and the other group of the reset buffer springs is located between the extrusion piston and the limiting annular pad, so that the extrusion piston can be buffered, the damage probability of the extrusion piston is reduced, and the service life of the shock absorber is improved.
[0011] Preferably, the connecting stud is rotated in the interior of the limiting annular pad, so that the connecting stud and the movable push rod can be disassembled, the disassembling mode is simple, and workers can operate conveniently.
[0012] Compared with the prior art, the shock absorber piston buffer mechanism has the beneficial effects that: when the vehicle moves to the bumpy road and the extrusion piston moves in the oil cylinder, the extrusion piston can be buffered, so that the surface wear of the extrusion piston caused by long-time violent movement of the extrusion piston and the non-adhesion between the extrusion piston and the oil cylinder can be avoided, the damping effect of the shock absorber is affected, the sliding sleeve, the reset buffer spring, the extrusion piston and the limiting annular pad can be separated from the movable push rod through the connecting stud, so that when a part is damaged, the part can be replaced, and the replacement cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model is further illustrated below by combining with the drawings and examples:
[0014] Fig. 1 It is the perspective view of the utility model;
[0015] Fig. 2 It is the structural schematic view of the utility model.
[0016] Reference signs: 1, movable push rod; 2, annular fixed cylinder; 3, fixed cover; 4, sliding sleeve; 5, reset buffer spring; 6, extrusion piston; 7, limiting annular pad; 8, connecting stud. DETAILED DESCRIPTION
[0017] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the drawings are used to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.
[0018] Please refer to Figs. 1-2The utility model provides a technical scheme: a piston buffer mechanism for shock absorber, including movable push rod 1 and reset type buffer spring 5, be equipped with extrusion piston 6 on movable push rod 1, the number of reset type buffer spring 5 is two groups, and two groups of reset type buffer spring 5 are located at the both sides of extrusion piston 6 respectively.
[0019] Further, the outer wall of the movable push rod 1 is fixedly installed with an annular fixing cylinder 2, the outer wall of the annular fixing cylinder 2 is fixedly installed with a fixed outer cover 3, the inside of the movable push rod 1 is provided with a threaded hole, the inner wall of the threaded hole is threadedly installed with a connecting stud 8, and the outer wall of the connecting stud 8 is slidingly installed with a limiting annular backing plate 7.
[0020] Further, the outer wall of the connecting stud 8 is slidingly installed with a sliding sleeve 4 and an extrusion piston 6, the number of the sliding sleeve 4 is two groups, the adjacent side walls of the two groups of sliding sleeves 4 are respectively in contact with the two sides of the extrusion piston 6 and are not fixed, and in this way, the sliding sleeve 4, the reset type buffer spring 5, the extrusion piston 6 and the limiting annular backing plate 7 can be separated from the movable push rod 1, so that when a certain component is damaged, it can be replaced, thereby reducing the replacement cost.
[0021] Further, the outer wall of the sliding sleeve 4 is sleeved with the reset type buffer spring 5, the number of the reset type buffer spring 5 is two groups, one group of reset type buffer springs 5 is located between the fixed outer cover 3 and the extrusion piston 6, the other group of reset type buffer springs 5 is located between the extrusion piston 6 and the limiting annular backing plate 7, and the connecting stud 8 rotates in the inside of the limiting annular backing plate 7, in this way, when the vehicle moves to the bumpy road and the extrusion piston 6 moves in the oil cylinder, the extrusion piston 6 can be buffered, which can avoid the surface wear of the extrusion piston 6 caused by long-time violent movement of the extrusion piston 6, and the extrusion piston 6 does not fit the oil cylinder, thereby affecting the damping effect of the shock absorber.
[0022] Working principle: when the extrusion piston 6 moves in the oil cylinder, the two groups of reset type buffer springs 5 can buffer the extrusion piston 6, reducing the rapid movement of the extrusion piston 6, when it needs to be disassembled, the connecting stud 8 is rotated, so that the movable push rod 1 is separated from the connecting stud 8, and then the sliding sleeve 4, the reset type buffer spring 5, the extrusion piston 6 and the limiting annular backing plate 7 on the connecting stud 8 can be taken out for separate replacement.
[0023] The above embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.
Claims
1. A piston cushion mechanism for a shock absorber, characterized by, Include: Movable push rod (1), movable push rod (1) is equipped with extrusion piston (6); Reset type buffer spring (5), the number of reset type buffer spring (5) is two groups, two groups of reset type buffer spring (5) are located at the two sides of extrusion piston (6).
2. A piston cushioning mechanism for a shock absorber according to claim 1, characterized in that: The outer wall of the movable push rod (1) is fixedly installed with an annular fixed cylinder (2), and the outer wall of the annular fixed cylinder (2) is fixedly installed with a fixed cover (3).
3. A piston cushioning mechanism for a shock absorber according to claim 2, characterized in that: The inside of the movable push rod (1) is provided with a threaded hole, and the inner wall of the threaded hole is threadedly installed with a connecting stud (8), and the outer wall of the connecting stud (8) is slidably installed with a limiting annular backing plate (7).
4. A piston cushioning mechanism for a shock absorber according to claim 3, characterized in that: The outer wall of the connecting stud (8) is slidably installed with a sliding sleeve (4) and an extrusion piston (6), the number of the sliding sleeve (4) is two groups, and the adjacent side walls of the two groups of sliding sleeves (4) are respectively in contact with the two sides of the extrusion piston (6) and are not fixed.
5. A piston cushioning mechanism for a shock absorber according to claim 4, characterized in that: The outer wall of the sliding sleeve (4) is sleeved with a reset type buffer spring (5), and the number of the reset type buffer spring (5) is two groups, one of which is located between the fixed cover (3) and the extrusion piston (6), and the other is located between the extrusion piston (6) and the limiting annular backing plate (7).
6. A piston cushioning mechanism for a shock absorber according to claim 5, characterized in that: The connecting stud (8) rotates in the inside of the limiting annular backing plate (7).