Ice melting drainage multi-directional deflection bridge extension device

Abstract

The invention discloses an ice melting drainage multi-directional deflection bridge extension device. The device comprises a comb tooth steel plate, a multi-directional deflection system, an anchorage system and a sealing drainage system, and further comprises an electric heating ice melting system; the electric heating ice melting system comprises a sensing unit, a control unit, a switch unit and a heating unit in circuit connection in sequence; the heating unit is electric heating cables placed in a sealing rubber groove in parallel; the sensing unit comprises a temperature sensor and a pressure sensor for conveying environmental temperature information and ice block pressure suffered in the sealing rubber groove to the control unit; and the control unit is used for controlling the switch unit to communicate with or separate from a working power supply of the heating unit according to temperature information and pressure information sent by the sensing unit. The device can duly melt ice and snow in the sealing rubber groove, and accumulated water is drained from a drainage pipe, so that the phenomenon of influence on the extension function of the bridge extension device by freezing of the accumulated water in the bridge extension device is effectively prevented, and traffic safety of driving under bridges is guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a multi-directional displacement bridge telescopic device for ice melting and drainage. Background technique [0002] The bridge expansion device is an important part of the highway bridge pavement; the structural strength and flatness of the expansion device product directly affect the safety and comfort of vehicles passing on the bridge; the waterproof performance of the expansion device product depends on whether it can prevent rainwater Corrosion of the structure under the bridge and ensuring the safety of traffic under the bridge. [0003] The current multi-directional displacement bridge expansion device includes a comb-tooth steel plate, a multi-directional displacement system, an anchor system and a waterproof system. Beam body connection; the waterproof system of the bridge expansion device is mainly composed of section steel and sealing rubber belt, which has...

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Problems solved by technology

[0004] 1. In northern my country, the winter temperature is low and the freezing period is long. The waterproof system of the bridge expansion device is blocked due to the rapid freezing of accumulated rainwater, which affects the normal expansion and contraction of the expansion device and the safety of the bridge;

[0005] 2. When the rainwater freezing and blockage is serious, the sealing rubber belt will be squeezed and damaged by ice cubes, causing the waterproof system to fail and leak. Under traffic and pedestrian safety, especially bridges in urban areas

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