Crash barriers with reflective layer

Abstract

The invention discloses an anti-collision guardrail with reflective layers. Baffles are arranged at the upper ends of upright columns to form grooves, a cross beam is erected between the two adjacent grooves, first buffering layers are arranged between the cross beam and the baffles, and the cross beam, the first buffering layers and the baffles are fastened together. The cross beam is formed by combining a left beam body and a right beam body which are fixed together. Spherical grooves are formed in the contact faces of the left beam body and the right beam body; openings are formed in the lower ends of the spherical grooves, rotary balls are contained in the spherical grooves and connected with guardrail rods, and the guardrail rods extend out of the openings in the lower ends of the spherical grooves; second buffering layers are arranged between the rotary balls and the spherical grooves; a third buffering layer wraps the outer side of the cross beam; rolling shafts are arranged on the guardrail rods and provided with the reflective layers; hanging rings are arranged at the lower ends of the guardrail rods, a connection chain is connected between the lower portions of the two upright columns, and the length of the chain is larger than the distance between the two upright columns; the chain sequentially penetrates through the hanging rings. Collision force can be buffered and released, impact harm of the guardrail to accident vehicles and passengers is reduced, and people in the vehicles can observe the position of the guardrail easily by means of the reflective layers.

Description

technical field [0001] The invention relates to the technical field of highway guardrails, in particular to an anti-collision guardrail with a reflective layer. Background technique [0002] With the continuous development of economic construction, transportation is becoming increasingly busy. Traffic accidents are currently the most frequent occurrences in road sections or highway bridge sections. In order to reduce the occurrence of traffic accidents, various guardrails are installed on both sides of the road. Since the guardrails are made of iron structure and inelastic, rigid guardrails have strong protection ability. However, when a car collides with the guardrails, Under the action of instantaneous impact load, the guardrail basically does not move or deform. The energy absorption during the collision process depends on the plastic deformation of the car itself, the frictional contact between the car and the guardrail, and the car's movement along the barrier. The cl...

AI Technical Summary

Problems solved by technology

[0003] The invention proposes an anti-collision guardrail with a reflective layer, which solves the problem of impact damage to accident vehicles and occupants caused by the strong rigidity of the guardrail in the prior art and the problem that it is not easy to be seen at night

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