Reinforced road guardrail

Abstract

Disclosed is a reinforced road guardrail. The reinforced road guardrail comprises a front fence plate and a rear fence plate, first turned edges are arranged at the positions, located at the top and the bottom of the front fence plate, in a cavity, second turned edges extend from the ends of the first turned edges, third turned edges are arranged at the positions, located at the top and the bottomof the rear fence plate, in the cavity, and fourth turned edges extend from the ends of the third turned edges. The protective guard further comprises two rectangular strips, a rectangular through hole is formed in each rectangular strip, a sliding groove is formed in the end face of each rectangular strip, the sliding grooves are communicated with the rectangular through holes, the two first turnups are tightly attached to one side faces of the two sliding grooves respectively, the two third turnups are attached to the other side faces of the two sliding grooves respectively, and a pluralityof tension springs are arranged between the two rectangular strips at intervals. The two second flanges are attached to the side face, provided with the sliding groove, of the rectangular through hole, and the two fourth flanges are attached to the side face, provided with the sliding groove, of the rectangular through hole. The highway guardrail solves the technical problem that an existing highway guardrail is low in strength.

Description

technical field [0001] The invention relates to the technical field of road guardrails, in particular to a reinforced road guardrail. Background technique [0002] The protective structure of the safety guardrail beside the existing road is generally a protective plate, and most of the protective plates are bent by metal materials to form an arc-shaped plate structure. The arc-shaped plate structure can provide a certain buffer force to reduce the impact damage, but now Some protective panels are generally made up of single-layer metal plates. The protective panels have low strength and poor buffering effect during the impact process. [0003] There are also improvements to the above problems in the prior art. The Chinese invention patent CN106638385A discloses a reinforced road guardrail, including a column, which is fixedly connected with a guardrail through a connecting bracket, and the guardrail is composed of two opposite front fences. Composed with the rear fence, the...

AI Technical Summary

Problems solved by technology

But this invention patent still has the following technical problems: 1) when this invention patent is assembled, between the middle part of the front fence and the middle part of the rear fence, between the two round steel bars and the cavity, the tension spring and the round steel bar They are all connected by welding. However, due to the long overall length of the guardrail and the relatively sealed cavity of the elliptical groove, welding is difficult and will greatly reduce the assembly efficiency; 2) two The connection between the round steel bar and the groove cavity, and between the extension spring and the round steel bar are all welded, which makes it difficult to replace the extension spring. After a long period of use, the extension spring will rust or be damaged, which will affect the reinforcement of the guardrail. Effect

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