Sludge cleaning device in regulating tank

The invention discloses a sludge cleaning device in a regulating tank, belonging to the technical field of sewage treatment. The sludge cleaning device comprises a sludge pump, a mounting seat, a sludge suction hose, a sludge suction telescopic cylinder, a support ring, a square track, a slide block, a screw rod, a reduction motor, a sludge scraping telescopic cylinder, a connecting rod, a sludgescraping plate and a tank bottom height detection sensor. Sludge in the middle of the regulating tank can be scraped to the side of the tank through the sludge scraping plate, thus facilitating the suction of the sludge suction hose; the upper part of the sludge suction hose is supported and expanded by the sludge suction telescopic cylinder, and the pipe orifice of the sludge suction hose is moved by a long rod, so that the burden of manually moving the sludge suction hose can be reduced, and the sludge can be sucked in a larger range; the tank bottom height detection sensor can detect the height reached by the sludg