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Lockable air spring with stroke ensured

A technology of air lock and stroke, which is applied in the field of gas springs, can solve the problems of poor use effect and small compression lock force, and achieve the effect of large compression lock force and good use effect

Pending Publication Date: 2017-11-24
岳彩立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A certain amount of oil is added to the rod cavity to install the rigid locking of the floating piston, but the current gas spring compression and locking force is small, and the use effect is poor

Method used

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  • Lockable air spring with stroke ensured

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Experimental program
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Effect test

Embodiment Construction

[0013] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

[0014] see figure 1 As shown, a lockable gas spring to ensure the stroke includes a pipe body 1, a valve body 2, a floating piston 3 and a piston rod 4; one end of the pipe body 1 is sealed by a tail plug, and the other end is provided with an oil seal 5 and a guide sleeve 6; the valve body 2 and the floating piston 3 are arranged in the pipe body 1, one end of the piston rod 4 is fixedly connected with the valve body 2, and the other end extends out of the pipe body 1 through the oil seal 5 and the guide sleeve 6, and the valve The valve needle 9 is arranged in the body 2, and the start rod 14 is slidably connected in the piston rod 4; the valve body 2 is slidably connected with the pipe body 1, and the floating piston 3 is slidably connected with the pipe body 1 and the piston rod 4. The valve body 2 and the floating piston 3 divide the ...

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Abstract

The invention relates to a lockable air spring with a stroke ensured. The lockable air spring is characterized in that a valve body is slidably connected with a pipe body; a floating piston is slidably connected with the pipe body and a piston rod; the inner cavity of the pipe body is divided into three sections by the valve body and the floating piston; cavities located on two sides of the floating piston are separately provided with a limiting device, so that the moving range of the floating piston is limited between the two limiting devices; a starting rod is pressed to open a valve needle, so that cavities on two sides of the valve body communicate with each other, and the valve body and the piston rod move in the inner cavity under the effect of pressure; the starting rod is released to close the valve needle, so that the cavities on two sides of the valve body are separated from each other, and the valve body is locked to lock the spring; hydraulic oil is injected into the cavities on two sides of the valve body, so that locking of the air spring in a compression direction is realized; locking force of the air spring in the compression direction is large; and use effect is good.

Description

technical field [0001] The invention relates to the field of gas springs, in particular to a lockable gas spring with guaranteed stroke. Background technique [0002] The gas spring is widely used. The working principle of the gas spring is to fill the sealed pressure cylinder with an inert gas or an oil-gas mixture, so that the pressure in the cavity is many times higher than the atmospheric pressure, and the cross-sectional area of ​​the piston rod is smaller than that of the piston. The pressure difference generated by the area thus realizes the movement of the piston rod. The gas and oil passages of the lockable gas spring communicate with the rod chamber and the rodless chamber through the shut-off valve. When the small valve button is pressed, the stop valve opens and the piston rod extends; when the button is released, the valve closes and the spring is locked. A certain amount of oil is added to the rod cavity to install the rigid locking of the floating piston, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/06F16F9/36F16F9/56F16F9/58
CPCF16F9/061F16F9/063F16F9/067F16F9/068F16F9/368F16F9/369F16F9/56F16F9/58
Inventor 岳彩立白丰华
Owner 岳彩立