Movable spraying maintenance device for prefabricated box girder

The utility model discloses a movable prefabricated box girder spraying maintenance device which comprises a spraying trolley, a water tank is fixedly installed on the left side of the top of the spraying trolley, a water pump is fixedly installed on the top of the spraying trolley, a control box is fixedly installed on the right side of the top of the spraying trolley, and an adjusting mechanism is fixedly installed on the top of the water pump. The adjusting mechanism comprises a fixing strip, electric push rods and racks, the fixing strip is fixedly installed outside the water pump, the electric push rods are fixedly installed on the front side and the rear side of the interior of the fixing strip, and the racks are slidably connected to the front side and the rear side of the interior of the fixing strip. According to the movable prefabricated box girder spraying maintenance device, an electric push rod is arranged on an adjusting mechanism and can be used for power supply during adjustment, a rack is arr