Counter-impact device

A technology of anti-shock and piston, which is applied in the direction of road safety devices, roads, roads, etc. It can solve the problems of difficult maintenance, low impact resistance, and poor buffering effect, and achieve good buffering effect, strong impact resistance, and reduced impact force effect

Inactive Publication Date: 2016-09-21
马鞍山市秋枫工程塑料异型材料制造有限责任公司
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of poor buffering effect, low impact resistance and difficult maintenance of highway guardrails in the prior art, and provides an anti-impact device. The force return is offset, and the cushioning effect is obvious. When used on the guardrail, it can effectively reduce the occurrence of casualties, and the guardrail beam using plastic steel pipe does not need to be painted and maintained, and has a long service life.

Method used

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Embodiment 1

[0033] combine figure 1 and figure 2 , a kind of anti-impact device of the present embodiment, the anti-impact device mainly includes an anti-impact cylinder 3, and the anti-impact cylinder 3 includes a cylinder block 34, a piston 32, a gland 33 and a piston ferrule 31, wherein: the cylinder block 34 Be provided with cylinder outer wall 343 and cylinder inner wall 345, described cylinder inner wall 345 is shorter than cylinder outer wall 343, evenly be provided with rib plate 347 between cylinder outer wall 343 and cylinder inner wall 345 (as figure 2), between the adjacent ribs 347 is the exhaust cavity 344, the cavity surrounded by the cylinder inner wall 345 communicates with the exhaust cavity 344 through the bottom cavity 346 of the cylinder block 34, and the sum of the cross-sectional areas of the exhaust cavity 344 is the cylinder body The cross-sectional area of ​​the cavity surrounded by the inner wall 345 is 0.8 to 1.2 times, and 0.9 times is selected in this embo...

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Abstract

The invention discloses a counter-impact device and belongs to the field of buffering devices. An air cylinder body of the counter-impact device is provided with a cylinder body outer wall and a cylinder body inner wall. One end of a piston is in tight fit with the cylinder body inner wall. A piston shaft shoulder is in tight fit with the cylinder body outer wall. An exhausting mechanism is arranged on the piston. The other end of the piston is provided with a piston clamping sleeve. A spring used for resetting the piston is arranged between the air cylinder body and the piston. The piston shaft shoulder is pressed into the cylinder body outer wall to be fastened through a gland. The counter-impact device is good in buffering and energy absorbing effect, high in counter-impact capacity, casualty accidents can be effectively reduced through an expressway guardrail using the counter-impact device, and utilized plastic steel pipes are good in self-lubrication performance, resistant to corrosion, easy to maintain and long in service life.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2015101495171. The application date of the original application is: 2015 / 3 / 31. The name of the invention is: an anti-impact device and a highway guardrail using the device. technical field [0002] The present invention relates to the technical field of buffer devices, more specifically, to an anti-shock device. Background technique [0003] At present, our country has entered the era of expressways, and expressways have greatly promoted the development of the national economy. In order to ensure driving safety, safety guardrails are installed on both sides of the expressway. Most of the safety guardrails used in our country are composed of columns and rigid corrugated protective plates. When the car loses control and hits the protective plate, this guardrail can prevent the car from falling into the ditch on both sides of the expressway or rushing into the opposit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F15/04
CPCE01F15/04
Inventor 季士泉
Owner 马鞍山市秋枫工程塑料异型材料制造有限责任公司
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