Bridge monitoring device

The utility model relates to the technical field of bridge monitoring, and discloses a bridge monitoring device which comprises a base, a fixing frame is installed on the upper portion of the base, a monitoring device body is installed in the fixing frame, a baffle is installed in the fixing frame, and a brush roller is arranged on one side of the monitoring device body. According to the utility model, the baffle plate is moved out of the fixed frame to shield the upper part of the monitoring device body, thereby preventing rain and snow from covering the surface of the camera, and enabling the monitoring device body to monitor a bridge in real time; a baffle drives a first rack to move, a first gear drives a lead screw to rotate, a first moving block moves along the lead screw, a first rotating shaft drives a brush roller to move together, a second gear moves along a second rack, a second rotating shaft drives the brush roller to rotate, and the brush roller can clean dust on the surface of the monitoring de