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a crash barrier

A technology for anti-collision guardrails and beams, which is applied in roads, buildings, road safety devices, etc., can solve the problems of vehicles prone to overturning accidents and drilling accidents, and achieve the effects of preventing vehicle overturning, increasing buffer time, and reducing manufacturing costs.

Inactive Publication Date: 2020-12-15
XIAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the contact surface between the guardrail and the vehicle is a wave beam, the actual height of the wave guardrail is consistent with the height of the front of the vehicle, which causes a vehicle with a high center of gravity to be prone to overturning accidents, and a vehicle with a low body is prone to fall. drill accident

Method used

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Embodiment Construction

[0026] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0027] Guardrail main body material selection

[0028] The crossbeam (comprising the upper crossbeam 1 and the lower crossbeam 7), the column 3 and the elastic spring core 2 of the guardrail main body are all made of Q235 carbon steel. Q235 carbon steel is currently the most commonly used guardrail material at home and abroad. Its yield strength is 235Mp, Young's modulus of elasticity is 200MPa, tensile strength can reach 470MPa, and ultimate strain is about 22%. The material has the characteristics of high strength, high modulus of elasticity, etc. It has small deformation during contact and collision, and can prevent vehicles from rushing out of the guardrail. Its manufacturing process is simple and its cost is low. Compared with other rigid materials, it has larger The cushioning degree can well absorb the energy generated during the collision, greatly pro...

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Abstract

The invention discloses an anti-collision guard rail, belonging to the technical field of guardrail. The anti-collision guard rail includes columns, and a cross beam mounted on the columns, the crossmember includes an upper cross member and a lower cross member, the anti-collision fence further comprises a spring post core, a torsion spring, a limit spring wire, and a limit spring, and the springcolumn core is arranged between the upper cross member and the lower cross member, the torsion spring is sleeved on the spring column core, one end of the limit spring wire is connected with the torsion spring end, the limit spring end is connected with the limit spring wire, and the limit spring is arranged on the inner side of the cross member and perpendicular to the cross member in the horizontal direction. The guard rail provided by the invention has both rigidity and elasticity of the guardrail, and has good application value.

Description

technical field [0001] The invention specifically relates to an anti-collision guardrail, which belongs to the technical field of guardrails. Background technique [0002] As a safety protection facility on the side of the road, the road crash barrier can provide safety protection for motor vehicles during road driving. The difference between highway guardrails and other safety facilities such as warnings and reminders is that guardrails absorb impact energy through their own elastic-plastic deformation, friction, and vehicle body deformation to reduce the severity of accidents and protect people in the car, road buildings and roads. safety of other things. [0003] Existing guardrails are divided into three types: rigid guardrails, semi-rigid guardrails, and flexible guardrails, among which semi-rigid guardrails are the most widely used. The common semi-rigid guardrail is a wave guardrail, which can be divided into two wave guardrails, three wave guardrails, pipe beam gua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F15/04
CPCE01F15/0407E01F15/0423E01F15/0438E01F15/0461
Inventor 杨光王莉王云龙丁乙杨冲蔺文雄
Owner XIAN UNIV OF SCI & TECH
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