Bridge expansion joint with sweeping mechanism

Abstract

Provided is a bridge expansion joint with a sweeping mechanism. A sweeping belt is arranged at the bottom of a V-shaped water stopping belt between beams, a driving shaft is arranged in a central hole of a belt wheel, one end of the driving shaft is connected to an output shaft of a gear box, and an input shaft of the gear box is connected to a motor. A screw is arranged on a movable bearing seat and is inserted into the top of a wheel support, the distance between the movable bearing seat and a shaft base can be adjusted by turning a nut on a screw, and tension adjustment of the sweeping belt is achieved. Two hinges are arranged at the bottom of a U-shaped shifting fork, the other end of each connecting rod on the same side is hinged to an installing base together to form a parallel four-connecting-rod mechanism, and the shifting fork can be pulled from a belt wheel or a driven belt wheel to the V-shaped water stopping belt regardless of any change of a separation distance of two side beams. The sweeping belt is provided with a bottom layer and a surface layer, the surface layer is provided with soft bristles arranged in an array mode, and a bristle brush belt is formed on the sweeping belt. Dust on the V-shaped water stopping belt can always reach an allowable range through cleaning of the sweeping belt, and the purposes of shortening maintenance time and increasing the operation time of the expansion joint are achieved.

Description

technical field [0001] The invention relates to bridge expansion joints, especially "bridge expansion joints with a cleaning mechanism", which mainly uses a cleaning belt to sweep out the dust in the water stop belt. Background technique [0002] The cleaning of bridge expansion joints has always been a difficult problem. The dust brought by pedestrians and vehicles enters the expansion joints and accumulates to a certain extent over time, resulting in damage to the function of the expansion joints. Therefore, a lot of manpower and material resources are always invested in the cleaning of bridges. Chinese patent application number: 201110154763.8, "A modular support type bridge expansion joint garbage automatic cleaning device", which is characterized in that it is composed of a motor, a garbage rubber conveyor belt, a driving shaft, a driven shaft, a bracket, an electromagnet, and an I-beam; The electromagnet and the driven shaft are installed on the side of the bridge box ...

AI Technical Summary

Problems solved by technology

Third, the expansion joints will become larger and smaller as the ambient temperature changes, and the distance between the seams will change greatly. If there is no corresponding adjustment mechanism for the conveyor belts, the distance between the conveyor belts will not be equal to the distance between the seams. The conveyor belt will lean to one side in the expansion joint, the gap between the conveyor belt and the expansion joint will increase, and more dust will fall into the waterstop

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