Expressway guardrail

Abstract

The invention relates to an expressway guardrail. The expressway guardrail comprises a cross bar, supporting columns and fixing seats. The end of the cross bar is warped up. Each supporting column comprises a pair of supporting rods arranged in parallel, the upper ends of the supporting rods are connected with the cross bar through connecting balls and spherical groove structures which are matched, and the lower ends of the supporting rods are connected with the corresponding fixing seat through connecting balls and spherical groove structures which are matched. The supporting rods are made ofa permanent magnet material, and every two supporting rods in a pair are repulsive in magnetism. Containing grooves are formed in the opposite rod faces of every two corresponding supporting rods, and buffer safety bags are placed in the containing grooves and folded to be placed in the containing grooves in a folding fan shape. A pre-breaking groove is formed in the horizontal center line of each supporting rod. The expressway guardrail can effectively reduce the probability that a vehicle flies out or flies to an opposite road when an accident happens, effectively reduce the degree of influence on traffic by the accident and meanwhile effectively reduce the collision damage degree of the accident vehicle.

Description

technical field [0001] The invention relates to the field of highways, in particular to a guardrail. Background technique [0002] The guardrail of the expressway plays the role of separating the lanes and maintaining the order of the lane; the ends of many guardrails protrude outward to form a rounded end; although this end has a certain safety protection effect, when encountering speeding vehicles, It is easy to cause the end to be inserted into the car body, aggravating the severity of the car accident; therefore, the end of the high-speed guardrail is often set in a structure that is inclined downward and inserted into the ground. This structure will not have a protruding end, even if the vehicle hits the end of the guardrail , it just slides out from the guardrail, and will not cause rigid and violent impact damage to the front of the car; but this structure also has certain disadvantages. Speeding vehicles are easy to enter the opposite vehicle after rushing over the g...

AI Technical Summary

Problems solved by technology

[0002] The guardrail of the expressway plays the role of separating the lanes and maintaining the order of the lane; the ends of many guardrails protrude outward to form a rounded end; although this end has a certain safety protection effect, when encountering speeding vehicles, It is easy to cause the end to be inserted into the car body, aggravating the severity of the car accident; therefore, the end of the high-speed guardrail is often set in a structure that is inclined downward and inserted into the ground. This structure will not have a protruding end, even if the vehicle hits the end of the guardrail , it just slides out from the guardrail, and will not cause rigid and violent impact damage to the front of the car; but this structure also has certain disadvantages. Speeding vehicles are easy to enter the opposite vehicle after rushing over the guardrail, seriously affecting the normal operation of the opposite vehicle , and even cause larger traffic accidents

Images