Automatic flushing device for secondary sedimentation tank

The utility model discloses an automatic flushing device for a secondary sedimentation tank, which comprises a rotating table arranged in the center of the secondary sedimentation tank and a mud scraping travelling crane connected to the rotating table, and a scrubbing mechanism and a flushing mechanism are arranged at one end, far away from the rotating table, of the mud scraping travelling crane front and back in parallel; a control box is further arranged on the mud scraping crane and electrically connected with the laser range finder, the water pump and the electric stainless steel thin brush. According to the automatic flushing device for the secondary sedimentation tank, electric energy is transmitted to the sliding contact line through the sliding contact line power supply distribution box and then transmitted to the water pump through the sliding contact line, and the water pump pumps water in the secondary sedimentation tank to flush the inner wall of the effluent weir, so that the labor intensity of