Auxiliary valve of rebuilt valve and hydraulic shock absorber

Abstract

The invention relates to the technical field of hydraulic shock absorbers, in particular to an auxiliary valve of a rebuilt valve and a hydraulic shock absorber. The auxiliary valve of the rebuilt valve comprises a fixing ring, a sliding ring and an elastic piece. The fixing ring and the elastic piece sequentially sleeve a piston rod and are connected with the piston rod in a positioning mode, the sliding ring sleeves the fixing ring and makes friction contact with the fixing ring, the two ends of the sliding ring abut against a main valve plate of the rebuilt valve and the elastic piece correspondingly, and the elastic piece can elastically deform. When the main valve plate of the rebuilt valve is opened and vibrates due to the high-frequency vibration input, the main valve plate pushes the sliding ring to move, the elastic piece elastically deforms under the action of the sliding ring, the resilience force of the elastic piece reacts on the sliding ring and reversely pushes the sliding ring to move, the friction force can be generated between the sliding ring and the fixing ring in the moving process of the sliding ring, movement of the sliding ring is restrained, and therefore the vibration of the main valve plate is restrained, the acceleration of the piston rod is reduced, the vibration transmitted to a vehicle body by the piston rod is reduced, and the riding comfort of a vehicle is improved.

Description

technical field [0001] The present application relates to the technical field of hydraulic shock absorbers, in particular to a recovery valve auxiliary valve and a hydraulic shock absorber. Background technique [0002] Hydraulic shock absorbers are commonly used in automobile suspension systems to accelerate the attenuation of frame and body vibrations and improve ride comfort. However, when the vehicle is driving on bumpy road conditions and there is high-frequency vibration input, due to the slow response of the existing hydraulic shock absorber, the main valve plate of the recovery valve will be in a state of normally open and trembling in a short period of time, and the vibration will Through the piston rod of the shock absorber, it is transmitted to various parts of the body, resulting in poor ride comfort. Contents of the invention [0003] The purpose of the present invention is to provide a return valve auxiliary valve and a hydraulic shock absorber, so as to sol...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a recovery valve auxiliary valve and a hydraulic shock absorber to solve the technical problem that the hydraulic shock absorber in the prior art has slow response and cannot suppress high-frequency vibration to a certain extent

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