An automatic detachment type isolation fence for accident-prone road sections

Abstract

The invention belongs to the technical field of municipal facilities, in particular to an automatic detachment isolation fence used for accident-prone road sections, comprising a fixing seat, verticalfixing bars and transverse fixing bars, wherein, a group of mutually parallel transverse fixing bars are arranged at the upper and lower ends of the vertical fixing bars; sockets are arranged at thetwo ends of the transverse fixing bars; the plug joint comprises two plug shafts arranged laterally opposite to each other; two lower damping springs are fixedly arranged on the fixing seat; a springis arranged between the same group of transverse fixing rods, and the springs are arranged crosswise, so that the isolation bar monomer is of the 'zone' type. The isolation fence modularizes the existing integral guardrail, so that the guardrail itself has the ability of evading contingency. When the guardrail is impacted, the adjacent guardrail is avoided to be deflected, which can avoid the occurrence of cascading accidents; and when the guardrail is impacted, the adjacent guardrail is avoided to be deflected. At the same time, integrally avoidable guardrails and the use of springs instead of fixed bars between the guardrails can reduce the reaction force of the guardrails to the vehicle, thereby reducing the degree of injury to the vehicle and personnel.

Description

technical field [0001] The invention belongs to the technical field of municipal facilities, and in particular relates to an automatic detachment barrier for accident-prone road sections. Background technique [0002] The guardrail is the main facility for isolating the road, and most of the existing guardrails are welded in one piece. With the continuous increase of vehicles in our country, the frequency of traffic accidents is also increasing year by year. On the road, most traffic accidents will cause damage to the guardrail. For the existing one-piece guardrail, as long as the guardrail is bumped, the whole section of the guardrail will be unusable. At the same time, being hit by the guardrail will also cause the movement of the connected guardrail, which will cause trouble to the normal running vehicles. In many traffic accidents, the driver will hit the guardrail due to distraction or avoiding vehicles while driving. However, because most of the existing guardrails a...

AI Technical Summary

Problems solved by technology

For the existing one-piece guardrail, as long as the guardrail is hit, it will make the entire guardrail unusable

At the same time, being hit by the guardrail will also cause the movement of the connected guardrail, which will cause trouble to the normal driving vehicles.

In many traffic accidents, the driver will hit the guardrail due to distraction or avoiding vehicles while driving. However, because most of the existing guardrails are connected in one piece, the horizontal bars and vertical bars of the guardrails and the middle bars are all welded. Together, when the vehicle hits the guardrail, the guardrail will move or even bend due to the impact of the vehicle. In this process, the hit part will drive other parts to move together, so that the front and rear sections of the hit guardrail will move, which will Bring trouble to normal vehicles and pedestrians, and even cause serial accidents

In addition, for some minor accidents, the force of the vehicle hitting the guardrail is not strong, but because the guardrail itself has no deformation performance, this is the rigid collision between the guardrail and the vehicle, resulting in more than necessary losses.

In addition, during the production of the integrated welded guardrail, various parts need to be welded together, and a guardrail can only be processed according to the sequence of the moving process, which will seriously affect the manufacturing cycle of the guardrail itself and increase the production cost

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