Structure capable of reducing impact abnormal sound risk of shock absorber limiting mechanism
By introducing a claw structure into the shock absorber, the problem of abnormal noise caused by the lack of engagement between the buffer washer and the spring is solved, stable operation inside the shock absorber is achieved, and the risk of abnormal noise is reduced.
Patent Information
- Application Number
- CN202422610254.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In the limiting mechanism of the existing shock absorber, the buffer washer and the spring have no snap-fit structure, which leads to the risk of movement inside the shock absorber and generating abnormal noise due to impact.
A claw structure is introduced into the shock absorber. The claw is fixed on the spring, and the buffer washer is fixedly connected to the piston rod to achieve clearance fit between the buffer washer and the piston rod. During the spring compression process, the buffer washer moves with the spring.
The risk of abnormal noise and impact caused by the movement of the buffer washer and spring during the extension and compression process of the shock absorber limit mechanism is effectively reduced.
Smart Images
Figure CN223469629U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of shock absorber, concretely to a structure of shock absorber limiting mechanism impact abnormal sound risk reduction. BACKGROUND
[0002] With the development of shock absorber industry technology, various vehicle types have higher and higher requirements on the performance and NVH of shock absorbers, and the automobile shock absorber as an automobile chassis part can attenuate the vibration of the vehicle body caused by the road surface, and when the wheel jumps to the limit, the shock absorber is stretched to the maximum length, and the internal stretching limiting mechanism can control the vehicle roll and prevent the impact abnormal sound and impact of the shock absorber limiting mechanism.
[0003] The commonly used ordinary stretching limiting mechanism has no clamping jaw for the upper and lower buffer washers, no clamping structure for the buffer washer and the spring, and clearance fit for the buffer washer and the piston rod, and the spring and the buffer washer move in the shock absorber, which has the risk of impact abnormal sound. SUMMARY
[0004] The utility model wants to solve the technical problem that the commonly used ordinary stretching limiting mechanism has no clamping jaw for the upper and lower buffer washers, no clamping structure for the buffer washer and the spring, and clearance fit for the buffer washer and the piston rod, and the spring and the buffer washer move in the shock absorber, which has the risk of impact abnormal sound.
[0005] To solve the above problems, the utility model adopts the technical scheme that: including the shell and the piston rod movably arranged at the top of the shell, the bottom end of the piston rod is located in the shell, the first buffer washer is slidably arranged on the outer side of the middle part of the piston rod, the second buffer washer is fixedly arranged on the outer side of the middle part of the piston rod, the second buffer washer is located below the first buffer washer, and the spring is arranged between the second buffer washer and the first buffer washer, and the opposite sides of the second buffer washer and the first buffer washer are provided with the protection assembly.
[0006] The protection assembly is specifically a clamping jaw fixedly arranged on the opposite sides of the second buffer washer and the first buffer washer, and the outer diameters of the opposite sides of the two clamping jaws gradually increase.
[0007] The utility model has the advantages that the clamping jaw is fixedly clamped on the spring, the second buffer washer is fixedly connected with the piston rod, the first buffer washer is in clearance fit with the piston rod, and the first buffer washer moves with the one end of the spring during the compression process of the spring, so that the structure solves the impact abnormal sound risk caused by the movement of the buffer washer and the spring in the shock absorber during the stretching and compression process of the shock absorber.
[0008] Further, the height of the clamping jaw is specifically 8mm.
[0009] The utility model provides a structure of shock absorber limiting mechanism impact abnormal sound risk reduction, has the following beneficial effect:
[0010] Through increase the dog, fixedly connect to spring, first buffer washer and piston rod fixed connection, second buffer washer and piston rod are gap fit, the second buffer washer moves with the one end compression of spring in the spring compression process, this structure solves the shock absorber stretching and compression process buffer washer and spring in the shock absorber interior and produce the impact abnormal sound risk of running. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 It is the appearance demonstration drawing of the utility model;
[0012] Fig. 2 It is the structure schematic drawing of the utility model.
[0013] The text mark shown in the drawing indicates that 1, shell, 2, piston rod, 3, first buffer washer, 4, second buffer washer, 5, spring, 6, dog. DETAILED DESCRIPTION
[0014] In order to make the person skilled in the art better understand the technical scheme of the present application, the present application will be described in detail below in conjunction with the drawings, and the description of this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.
[0015] Embodiment:
[0016] As Figs. 1-2 Indicated, a structure of shock absorber limiting mechanism impact abnormal sound risk reduction, including shell 1 and the piston rod 2 of the movable setting in the top of shell 1, the bottom end of piston rod 2 is located in the inside of shell 1, the middle part outside of piston rod 2 is slidably provided with first buffer washer 3, the middle part outside of piston rod 2 is fixedly provided with second buffer washer 4, and second buffer washer 4 is below first buffer washer 3, and the spring 5 is arranged between second buffer washer 4 and first buffer washer 3, and the opposite side of second buffer washer 4 and first buffer washer 3 is provided with protection assembly.
[0017] The protection assembly is specifically a dog 6 fixedly arranged on the opposite side of second buffer washer 4 and first buffer washer 3, and the outer diameter of the opposite side of the two dogs 6 gradually increases.
[0018] The first buffer washer 3 and the second buffer washer 4 are fixed to the spring 5 through the clamping jaw 6, the second buffer washer 3 is tightly matched with the piston rod 2, the first buffer washer 4 is gap matched with the piston rod 2, during the compression process of the spring 5, the second buffer washer 3 is fixed to the piston rod, and the first buffer washer 4 moves relatively with the spring compression and recovery, and the structure solves the risk of impact and abnormal sound generated by the buffer washer and the spring 5 moving in the shock absorber during the stretching and compression process of the shock absorber.
[0019] The height of the clamping jaw 6 is specifically 8mm.
[0020] Working principle: the first buffer washer 3 and the second buffer washer 4 are fixed to the spring 5 through the clamping jaw 6, the second buffer washer 3 is tightly matched with the piston rod 2, the first buffer washer 4 is gap matched with the piston rod 2, during the compression process of the spring 5, the second buffer washer 3 is fixed to the piston rod, and the first buffer washer 4 moves relatively with the spring compression and recovery, and the structure solves the risk of impact and abnormal sound generated by the buffer washer and the spring 5 moving in the shock absorber during the stretching and compression process of the shock absorber.
[0021] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. The principle and implementation of the present application are described in specific examples. The above examples are only used to help understand the method and its core idea. The above described is only the preferred embodiment of the present application. It should be pointed out that due to the limitation of language expression, there are infinite specific structures objectively. For ordinary skilled persons in the technical field, without departing from the principle of the present application, some improvements, decorations or changes can be made, or the above technical features can be combined in a proper way; these improvements, decorations, changes or combinations, or without improvement, the concept and technical scheme of the present application are directly applied to other occasions, which should be regarded as the protection scope of the present application.
Claims
1. A structure capable of reducing the risk of impact noise of a shock absorber limiter mechanism, characterized by: The utility model relates to a piston rod buffer device, including shell (1) and the piston rod (2) of active setting in the top of shell (1), the bottom end of piston rod (2) is located inside shell (1), the middle part outside of piston rod (2) is slidably provided with first buffer washer (3), the middle part outside of piston rod (2) is fixedly provided with second buffer washer (4), second buffer washer (4) is below first buffer washer (3), and spring (5) is arranged between second buffer washer (4) and first buffer washer (3), and the opposite side of second buffer washer (4) and first buffer washer (3) is provided with protection assembly; The protection assembly is specifically a clamping jaw (6) fixedly arranged on the opposite side of the second buffer washer (4) and the first buffer washer (3), and the outer diameters of the opposite sides of the two clamping jaws (6) gradually increase.
2. The structure capable of reducing the risk of impact noise of a limiter mechanism of a shock absorber according to claim 1, characterized in that: The height of the clamping jaw (6) is specifically 8 mm.