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Nitrogen spring structure

A nitrogen gas spring and cylinder technology, used in springs, springs/shock absorbers, gas shock absorbers, etc., can solve problems such as cylinder bursting

Pending Publication Date: 2019-06-11
JIANGSU NAIMAXIN PRECISION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the worker misuses or an object is accidentally stuck at the nitrogen spring plunger rod during work, there will be a phenomenon that the nitrogen spring is over-traveled, resulting in the risk of an accident that the cylinder will burst after being pressurized

Method used

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Embodiment Construction

[0030] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

[0031] see figure 1 , 2 As shown, a nitrogen gas spring structure includes a cylinder body 1, a plunger rod 2 and an intermediate sleeve 3, the cylinder body 1 is provided with a cylinder hole 11, and the intermediate sleeve 3 is sealed and connected to the upper part of the inner wall of the cylinder hole 11, and the column The plug rod 2 is slidingly connected with the inner hole of the middle sleeve 3 in a sealing manner, and the cylinder hole 11 of the cylinder body 1 is filled with high-pressure nitrogen gas. The boss 21 , and the outer first step 211 has a thickness smaller than the second step 212 , and is also smaller than the thickness of the stopper boss 31 . Ensure that the thinnest first step 211 breaks first, and the second step 212 can resist the limiting boss 37 during the flying out process. And the inner wall of the midd...

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Abstract

The invention relates to a nitrogen spring structure which comprises a cylinder body, a plunger rod and a middle sleeve. The cylinder body is provided with a cylinder body hole. The middle sleeve is connected with the upper portion of the inner wall of the cylinder hole in a sealed manner. The plunger rod is connected with an inner hole of the middle sleeve in a sealed and sliding manner. The cylinder hole of the cylinder body is filled with high-pressure nitrogen. The inner end face of the plunger rod is provided with step type bosses of at least two steps extending outwards. The inner wall of the middle sleeve is provided with a backstop boss extending inwards and a limiting boss. A Y-shaped sealing ring is arranged in a sealing ring containing groove. A ring-shaped pressure relief thin-wall boss is arranged on the periphery of the middle sleeve. The outer end face of the plunger rod is provided with at least one stress face forming an inclination angle relative to the outer end face. An installing hole is formed in the bottom of the cylinder hole of the cylinder body. A plug installing base is fixed to the installing hole. The plug installing base is provided with a plug blind hole facing the cylinder hole. The nitrogen spring structure can prevent the cylinder body from cracking, prevent the plunger rod from breaking and flying out and prevent unbalance loading, and has a function of plunger rod overtravel protection.

Description

technical field [0001] The invention relates to a nitrogen gas spring structure. Background technique [0002] Nitrogen gas spring is a new type of elastic component with high-pressure nitrogen as the working medium. It has small size, large elasticity, long stroke, stable operation, precise manufacturing, long service life, gentle elastic curve, and no need for preloading, etc. It has Metal springs, rubber and air cushions and other conventional elastic components are difficult to complete, simplify mold design and manufacture, facilitate mold installation and adjustment, prolong the service life of molds, and ensure stable product quality. It can also be designed as a nitrogen spring system as a mold It is a new generation of the most ideal elastic component with flexible performance, which can easily realize constant pressure and time-delay action in the system. [0003] Due to the working conditions of the nitrogen gas spring, sometimes there is a certain amount of lubr...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16F9/32F16F9/43
Inventor 杭飞鹏
Owner JIANGSU NAIMAXIN PRECISION MACHINERY CO LTD
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