Damping-variable gas spring

A gas spring and variable damping technology, which is applied in the direction of springs, spring/shock absorbers, gas shock absorbers, etc., can solve the problems of poor variable damping effect and troublesome production, and achieve the goals of reducing impact, facilitating assembly, and accelerating reset speed Effect

Inactive Publication Date: 2017-11-17
NINGBO YILI SHOCK ABSORBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of poor variable damping effect and troublesome manufacture i

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] as attached figure 1 , attached figure 2 Shown: a variable damping gas spring, comprising: a cylinder 1, a piston rod 2 whose upper end protrudes from the upper end of the cylinder 1, a guide sleeve 3 arranged on the top of the cylinder 1 and sleeved outside the piston rod 2 in turn, an upper seal The ring 4 and the buffer sleeve 5 are sequentially installed on the upper valve plate 6, the piston 7 and the lower valve plate 8 at the lower end of the piston rod 2, the lower sealing ring 9, and the buffer spring 10 located at the lower part of the cylinder 1; the upper sealing ring 4 is the lip shaped sealing ring; the material of the lower sealing ring 9 is polytetrafluoroethylene; the inner side of the cylinder barrel 1 is provided with an axial flow groove 11 whose cross section gradually decreases from top to bottom; the outer diameter of the lower sealing r...

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Abstract

The invention relates to the field of fitness equipment, and especially relates to a damping-variable gas spring. The damping-variable gas spring comprises a cylinder barrel; a piston rod with an upper end stretching out of the upper end of the cylinder barrel; a guide sleeve, an upper sealing ring and a cushion sleeve which are arranged on the upper part of the cylinder barrel and sequentially sleeve the exterior of the piston rod; an upper valve block, a piston, a lower valve block and a lower sealing ring which are sequentially installed on the lower end of the piston rod; the inner side wall of the cylinder barrel is provided with at least one axial flow-passing groove of which the cross section is gradually reduced from top to bottom; the external diameter of the lower sealing ring is matched with the internal diameter of the cylinder barrel; the lower end of the piston is provided with a lower convex ring of which the length is larger than the thickness of the lower sealing ring; the lower sealing ring sleeves the exterior of the lower convex ring, and the internal diameter of the lower sealing ring is larger than the external diameter of the lower convex ring; and the lower valve block is provided with several through grooves opposite to the lower sealing ring. The damping-variable gas spring is good in damping variation effect and convenient to make.

Description

technical field [0001] The invention relates to the field of fitness equipment, in particular to a variable damping gas spring. Background technique [0002] The invention of Chinese patent application number CN200920064983.X discloses a variable damping gas spring, including a cylinder, a base, a piston rod and a piston part assembled on the piston rod. The piston part mounted on the piston rod is composed of a piston ring and a piston. A pair of matching components; wherein, one side of the piston is close to the flow valve plate, the side of the piston ring is connected to the valve plate, one end of the valve plate is connected to the fastening nut, and there are guides, sealing rings and positioning sleeves in the cylinder. A tapered groove is arranged on the inner wall of the cylinder, and 3-16 channel flow grooves are arranged on the piston, and the section of the piston ring is rectangular. The variable damping gas spring has the disadvantages of poor variable dampi...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16F9/36F16F9/34F16F9/32
CPCF16F9/0218F16F9/3235F16F9/34F16F9/362
Inventor 应端忠罗琦洋王章文
Owner NINGBO YILI SHOCK ABSORBER
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