Road and bridge telescopic structure for preventing bumping at bridgehead

The invention discloses a road and bridge telescopic structure for preventing bumping at the bridge head. The structure comprises an approach road, ground, bridge piers and a main bridge, wherein a fixing plate is fixedly connected to the outer side wall of the approach road, clamping teeth are arranged at the ends of the fixing plate, the bridge piers are fixedly connected with the ground, the ends of the bridge piers are fixedly connected with the bottom of the main bridge, a locking plate is fixedly connected to the outer side of the main bridge, a clamping groove is formed in the outer side wall of the locking plate, the outer side walls of the clamping teeth abut against the inner side wall of the clamping groove, concrete is poured on the outer side wall of the fixing plate and the outer side wall of the locking plate, and a fixing rod is fixedly connected to the outer side wall of the main bridge. According to the invention, a sunken filler makes contact with air on the surfaceof an extrusion plate to