A highway guardrail

Abstract

The invention discloses a highway guardrail, which comprises a square tube fixed on a column. The column is provided with a mounting groove, two rotating cavities and a connecting groove, and the rotating cavity and the connecting groove are all connected to the mounting groove. A rotating shaft 1 is rotatably connected between the two rotating chambers, and an impact plate is fixedly sleeved on the rotating shaft 1, and the impact plate is located in the installation groove, and a plurality of springs 1 are fixedly installed between the installation groove and the impact plate. , the side of the striking plate close to the spring one is abutted against a push rod. The advantage is: the rotation setting of the impact plate can generate a horizontal thrust on the push rod during the impact, which is convenient for the operation of the subsequent vibration reduction operation, and can better reduce the impact force received. At the same time, when the impact force does not cause the overall deformation, it cannot be used At this time, the guardrail can also repeatedly play the role of cushioning and vibration reduction.

Description

technical field [0001] The invention relates to a highway guardrail, in particular to a highway guardrail. Background technique [0002] After retrieval, the patent No. CN107524107B Chinese Invention Authorization Document discloses a highway guardrail, including a column and a guardrail. A side tube is horizontally arranged on the side of the column away from the guardrail, and a push rod runs through the guardrail in turn. Stretch in the square tube behind with column. [0003] There are also the following deficiencies in this highway guardrail: [0004] 1. The first baffle, the second baffle, and the third baffle all run through the square tube vertically. When the first push block breaks through the first baffle, the second baffle moves down to block the second push block. When the second push block breaks through the second baffle, the third baffle moves down to block the third push block; taking the first push to break through the first baffle as an example, the brea...

AI Technical Summary

Problems solved by technology

[0004] 1. The first baffle, the second baffle, and the third baffle all run through the square tube vertically. When the first push block breaks through the first baffle, the second baffle moves down to block the second push block. When the second push block breaks through the second baffle, the third baffle moves down to block the third push block; taking the first push to break through the first baffle as an example, the breakthrough will make the first push block and At least one of the first baffles is bent or broken, and no matter which part is bent or broken, this part cannot be used again, which also shows that the first spring cannot perform the expected reset when the impact force is slightly larger Effect

[0005] 2. If the impact makes the push rod tilt, the above-mentioned vibration reduction cannot achieve the expected effect, so that the impact directly affects the column, but the column is hollow, and the ability to withstand impact is weak. If the impact force is too large, it is easy to make the column Fracture occurs, thus no interception effect

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