a highway guardrail

Abstract

The invention provides a highway guardrail which comprises a stand column (10), a corrugated guardrail plate (20) and a buffering bracket (30) arranged between the stand column (10) and the guardrail plate (20). The stand column (10) is sleeved with a conical barrel (11), and the outer diameter of the conical barrel (11) is gradually increased from top to bottom. The buffering bracket (30) is arranged outside the conical barrel (11) in a sleeving mode from the upper portion of the conical barrel (11). The guardrail plate (20) is buckled on the buffering bracket (30). A buffering structure capable of moving up is arranged on the highway guardrail, all bolt type connecting components are omitted, the buffering deformation stroke of the highway guardrail is greatly increased, secondary harms are avoided, structure modification is little, and installation is convenient.

Description

technical field [0001] The invention relates to a traffic safety protection technology, in particular to a highway guardrail with a buffer structure for highways and the like. Background technique [0002] Highway guardrails such as highway guardrails are the main form of semi-rigid guardrails, which are continuous structures that are spliced ​​with corrugated guardrails and supported by columns. When the vehicle collides with it, because the guardrail has good crashworthiness and energy-absorbing effect, it is not easy to be crashed, and at the same time, it can play a good role in protecting the vehicle and the passengers. The protective principle of the highway guardrail is to use the deformation of the soil foundation, columns, and guardrails to absorb the collision energy, and force the out-of-control vehicle to change direction and return to the normal driving direction, so as to prevent the vehicle from rushing out of the road, so as to protect the vehicle and passeng...

AI Technical Summary

Problems solved by technology

However, the actual situation is that since the trapezoidal opening is a structure with a narrow top and a wide bottom, the upper part of the elastomer has more material and thus greater rigidity, while the lower part has less material and less rigidity, so the lower part deforms more when it is impacted, and the entire body The structure will actually move downwards instead of upwards, eventually causing the guardrails to move towards the ground and defeat the purpose of protection

[0006] In addition, in the prior art, buffer brackets, elastic bodies, and guardrails are all fixed on the columns through connection structures such as bolts. When violent collisions occur, these metal connection parts sometimes fall off and fly out. It may even hit vehicles traveling in the opposite direction, causing unpredictable consequences

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