Water storage device for sewage treatment

The utility model discloses a water storage device for sewage treatment. The utility model belongs to the technical field of sewage treatment equipment. The utility model discloses a water storage device for sewage treatment. The tank comprises a tank body and a support, a reinforcing rib net is arranged on the surface of the tank body; a sliding groove is formed in the top of the support. The inner wall of the sliding groove is movably connected with the surface of an internal thread block, a screw is movably connected into the sliding groove, the inner wall of the internal thread block is inthreaded connection with the surface of the screw, a hand wheel is arranged on the side face of the support, the end, close to the hand wheel, of the screw penetrates through the support and is fixedly connected with the inner wall of the hand wheel, and the surface of the screw is in threaded connection with the nut. Through the arrangement of the reinforcing rib net, the screw rod, the pressingplate and the rubber pad,