Air-pressure spring piston assembly sealing structure

A technology of sealing structure and piston assembly, which is applied in the direction of spring, spring/shock absorber, gas shock absorber, etc., can solve the problems of high maintenance cost, affecting the layout of the chassis, and easy wear of seals, so as to save the use cost and reduce the Frequent replacement to ensure the effect of stability

Pending Publication Date: 2018-04-20
汪平和
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The rubber bladder has limited rigidity, is easily damaged, is greatly affected by environmental factors, and is prone to explosion; the high-pressure gas filling equipment is composed of special pipelines and compressors, which has high maintenance costs, takes up a lot of space, and affects the chassis layout
[0004] At the same time, in the existing air spring, the seal between the piston and the cylinder is easy to wear, which will lead to air leakage and reduce the working stability of the air spring.
It is troublesome to replace the seals at the same time

Method used

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The positional relationship of up, down, left and right described in this embodiment is as follows figure 1 shown.

[0022] A kind of pneumatic spring it comprises air cylinder 10, cylinder 24, piston assembly, described air cylinder 10 comprises air cylinder 10 upper end cap 6 and air cylinder 10 lower end caps 14; Described cylinder 24 is placed in the air cylinder 10; The cylinder 24 is provided with piston assembly, The piston assembly includes a piston rod 5 and a piston 9. The upper...

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Abstract

The invention discloses an air-pressure spring piston assembly sealing structure. A piston sealing air channel is formed in a piston, and a piston sealing piece is arranged in the outlet end of the piston sealing air channel and makes contact with the side wall of an air cylinder. The inlet end of the piston sealing air channel communicates with the interior of the air cylinder to enable air in the air cylinder to enter the piston sealing air channel from the inlet end of the piston sealing air channel to squeeze the piston sealing piece, so that the piston sealing piece presses tightly the side wall of the air cylinder. In the sealing structure, automatic compensation can be conducted after the sealing piece is abraded.

Description

technical field [0001] The invention relates to an automobile suspension, in particular to a sealing structure of an air spring piston assembly. Background technique [0002] As we all know, automobile suspension can reduce the vibration and impact that the automobile receives during driving, so that the automobile can drive more safely and comfortably; automobile suspension is widely used in automobiles. The suspension for riding a bicycle includes damping elements and elastic elements, and the elastic elements of the existing automobile suspension are usually leaf springs and air springs; the stiffness and weight of the leaf springs in the existing elastic elements are relatively large, which increases the overall weight of the vehicle body. [0003] In existing commercial vehicles, air springs are usually used, and the air springs are composed of rubber bladders and high-pressure gas filling equipment. The rubber bladder has limited rigidity, is easily damaged, is greatl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/02F16F9/32F16F9/36
CPCF16F9/0281F16F9/3207F16F9/3214F16F9/3221F16F9/36F16F9/362F16F9/368
Inventor 汪平和
Owner 汪平和
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