Damper inner-outer tube capable of adjusting spring length

Abstract

The invention discloses a damper inner-outer tube capable of adjusting spring length. The damper inner-outer tube comprises an inner tube and an outer tube, wherein the surface of the inner tube is movably connected with the inner wall of the outer tube; the top of the inner tube and the bottom of the outer tube are fixedly connected with cushion blocks; circular rings are fixedly connected on theupper surfaces and the lower surfaces of the two cushion blocks; the surface of the outer tube is movably in sleeve connection with a circular disc; the upper surface of the circular disc is fixedlyconnected with one end of a first spring; the other end of the first spring is fixedly connected with the lower surface of the cushion block fixedly connected to the top of the inner tube; a cylinderand a first piston are movably connected on the inner wall of the outer tube separately; and the bottom of the cylinder is fixedly connected with the upper surface of the first piston. According to the damper inner-outer tube capable of adjusting spring length disclosed by the invention, the circular disc, the first spring, the first piston, a movable block and a valve element are arranged, so that the problems that potential safety hazards exist after a damper is used for certain time as threaded regulation is mainly adopted to regulate pre-compression length of a damper spring at present, and thread strength is limited are solved.

Description

technical field [0001] The invention relates to the technical field of shock absorbers, in particular to an inner and outer tube of a shock absorber with an adjustable spring length. Background technique [0002] The shock absorber is used to suppress the shock when the spring rebounds after absorbing the shock and the impact from the road surface. It is widely used in automobiles to accelerate the attenuation of the vibration of the frame and the body to improve the ride comfort of the car. When passing through uneven roads, although The shock-absorbing spring can filter the vibration of the road surface, but the spring itself will reciprocate, and the shock absorber is used to suppress this spring jumping. Shock absorber is too soft, automobile body can hop up and down, shock absorber can bring too great resistance too forcedly, cloggy bedspring works normally. In the process of refitting the suspension system, hard shock absorbers should be matched with hard springs, and...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an inner and outer tube of the shock absorber with adjustable spring length, which solves the problem that thread adjustment is often used to adjust the pre-compression length of the shock absorber spring at present, but the thread strength is limited and the shock absorption There are potential safety hazards after the device is used for a period of time

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