Pipe wall cleaning device for heating drainage pipe

The utility model discloses a heating drain pipe wall cleaning device which comprises a device body, the device body comprises an outer shell, three sets of gears and a water pump, a movable groove is formed in the outer shell, the three sets of gears are rotationally installed in the movable groove, movable rods are fixedly arranged on the gears, rack rods are meshed with the inner sides of the gears, and the rack rods are connected with the water pump. A base plate is rotationally arranged at the top of the movable rod, two sets of springs are connected to the outer side of the base plate, scraping plates are connected to the outer sides of the springs, torsional springs are arranged at the joints of the base plate and the movable rod, the outer shell is provided with three sets of guide pipes, the upper ends of the guide pipes are attached to one side of the movable rod, and spray heads are arranged at the tops of the guide pipes. According to the device, the distance between the three sets of scraper blad