Maintenance device for roads and bridges

The invention belongs to the technical field of construction maintenance equipment and discloses a maintenance device for roads and bridges. The maintenance device comprises a bottom plate, wherein awater tank is mounted on the bottom plate, and a water pump, a water pipe and a filter tank are fixedly mounted in the water tank; a movable box with an adjustable vertical angle is installed outsidethe water tank, and a sprinkler head is arranged on the movable box. By arranging the pneumatic cylinder, the tooth plate and the tooth block, when the pneumatic cylinder operates, the tooth plate canascend and descend, at the moment, due to the meshing effect of the left side of the tooth plate and the outer surface of the tooth block, the movable box and the water spraying head can be driven toconduct angle deflection, and therefore an operator can conveniently conduct water spraying and fixing at different angles; operation is simple and convenient, so practicability of the maintenance device is improved. 本发明属于施工养护设