Road surface deformation detection device for highway bridge

The invention provides a pavement deformation detection device for a highway bridge, and relates to the technical field of bridge detection. The pavement deformation detection device for the highway bridge comprises two supporting beam mounting frames and a control cabinet, connecting frames are welded to the positions, close to the lower ends, of the middles of the front side walls of the two supporting beam mounting frames, and belt pulley mounting frames are fixedly connected to the positions, close to the front ends, of the middles of the upper side walls of the two connecting frames; a driving motor is connected to the rear side wall of the belt pulley mounting frame close to one side through a bolt, arc-shaped tooth synchronous belt pulleys are arranged on the front sides of the two belt pulley mounting frames, and a connecting shaft of the arc-shaped tooth synchronous belt pulley close to one side is connected with an output shaft of the driving motor through a main shaft. By detecting the change condi