Anti-rotation air spring structure

Abstract

The invention relates to the technical field of air springs, in particular to an air spring structure capable of effectively preventing a piston rod from rotating. The air spring structure comprises a cylinder, a piston and a piston rod, wherein one end of the cylinder is provided with a rear end cover; a first air hole is formed in the rear end cover; the other end of the cylinder is provided with a front end cover; a second air hole is formed in the front end cover; the piston is arranged in the cylinder in a sliding mode; one end of the piston rod penetrates through the front end cover and is fixedly connected with the piston; and a rotation stopping mechanism is sleeved at one end, which extends out of the front end cover, of the piston rod The air spring structure is simple in structure, low in manufacturing cost and favorable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of gas springs, in particular to a gas spring structure capable of effectively preventing a piston rod from rotating. Background technique [0002] As a common mechanical component unit, gas spring is widely used in various fields such as medical equipment, furniture and auto parts. Oil, gas or oil-gas mixture is generally used as the transmission medium in the gas spring. The existing gas spring is generally composed of a cylinder, a front cover, a rear cover, a piston and a piston rod in the cylinder, and the piston and the piston rod will rotate under the action of an external force. In some special cases, the mechanical The connection of components has the effect of inconvenience. In order to effectively overcome this deficiency, many meaningful explorations have been made in the industry, such as setting the cross-section of the inner wall of the cylinder to a polygon, and the cross-section of the pist...

AI Technical Summary

Problems solved by technology

The existing gas spring is generally composed of a cylinder, a front cover, a rear cover, a piston and a piston rod in the cylinder, and the piston and the piston rod will rotate under the action of an external force. In some special cases, the mechanical The inconvenient effect of the connection of components

In order to effectively overcome this deficiency, many meaningful explorations have been made in the industry, such as setting the cross-section of the inner wall of the cylinder to a polygon, and the cross-section of the piston to a polygon. Although this structure effectively solves the problem of the rotation of the piston and piston rod , but the production process becomes complicated and the production cost is greatly increased

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