Tunnel anti-rebound buffer guardrail

Abstract

In order to solve the problem that a tunnel buffer guardrail rebounds during the buffering of a vehicle to cause a safety hazard, the invention provides a tunnel anti-rebound buffer guardrail which comprises an integral guard plate distributed along the inner wall of a tunnel and a plurality of groups of anti-rebound buffer devices fixedly connected between the guard plate and the wall of the tunnel. Each anti-rebound buffer device includes a hydraulic cylinder and an adjusting device, the hydraulic cylinder is fixedly connected to the rear side of the guard plate, includes a cylinder body anda push rod, and is provided with oil inlet and an oil outlet located at the rear end of the cylinder body, the adjusting device is fixedly connected to the rear end of the hydraulic cylinder and includes a barrel, and the front end of the barrel is open and is communicated with the hydraulic cylinder through the oil outlet of the hydraulic cylinder. An internal thread and a bolt connected to theinner rear of the barrel through the internal thread are disposed in the barrel, the front end of the bolt is connected with a compression spring and a baffle fixedly connected to the front end of thecompression spring, the front of the barrel is also provided with an oil discharging port, and a fixing frame is fixedly connected between the adjusting device or the hydraulic cylinder and the wall.

Description

technical field [0001] The invention relates to the technical field of tunnel safety protection, in particular to a tunnel anti-rebound buffer guardrail. Background technique [0002] The existing tunnel safety guardrails mainly use certain buffer devices for safety protection, and the common ones include: [0003] 1. Use buffer materials for buffering through structures such as guard plates or bases; [0004] 2. Buffering is carried out through relatively complicated mechanisms, most of which use springs as the main buffering structure. [0005] Regardless of whether it is a vehicle buffer guardrail made of buffer materials or such as a spring structure, there is a problem that the buffer structure will reset after the buffer and cause subsequent damage to the vehicle, and the impact force that can be buffered cannot be adjusted conveniently, and the buffer effect of the tunnel vehicle is not good. good. Contents of the invention [0006] In order to solve the problem ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the tunnel buffer guardrail will rebound in the process of buffering the vehicle and cause potential safety hazards, the present invention provides a tunnel anti-rebound buffer guardrail, and the adopted technical scheme is as follows:

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