Road and bridge maintenance device

The invention discloses a road and bridge maintenance device, and relates to the technical field of roads and bridges. The device comprises a bottom plate and a melting barrel arranged at the top of the bottom plate, the top of the bottom plate is fixedly connected with a cleaning box, the bottom of the inner surface of the cleaning box is fixedly connected with a limiting sliding groove plate, and the inner surface of the limiting sliding groove plate is slidably connected with a linkage plate through a sliding block; an extension rod is fixedly connected to the bottom of the linkage plate, a cleaning head is fixedly connected to one end of the extension rod, a moving groove is formed in the bottom of the bottom plate, a motor is fixedly connected to one side of the inner surface of the cleaning box, and a rotating strip is fixedly connected to one end of an output shaft of the motor. Through the arrangement of the motor, the motor drives the sweeping head to do reciprocating motion so as to sweep the ground