A Reinforced Highway Guardrail

Abstract

The invention discloses a reinforced highway guardrail, which comprises a front fence and a rear fence. The top and bottom of the front fence in the cavity are provided with first flanges, and the end of the first flange extends with a second flange. Second flanging, the top and bottom of the rear fence in the cavity are provided with a third flanging, the end of the third flanging is extended with a fourth flanging, the guardrail also includes two rectangular bars, and the rectangular bar is provided with a rectangular Through hole, the end surface of the rectangular bar is provided with a chute, the chute is connected with the rectangular through hole, the two first flanges are closely attached to one side of the two chute respectively, and the two third flanges are respectively connected to the two sides of the two chute. The other side of the chute is attached, and a number of tension springs are arranged at intervals between the two rectangular bars. The two second flanges are respectively attached to the sides of the chute provided with the rectangular through hole. Rectangular through-holes are fitted with the sides of the chute. The invention solves the technical problem of low strength of the existing highway guardrails.

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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