The invention discloses a large submersible
sewage pump. The large submersible
sewage pump comprises a bottom plate, and a driving device is arranged above the bottom plate. According to the large submersible
sewage pump, through cooperation of the bottom plate, a vertical plate, a box body, a wide plate, a sewage pump, the driving device and a rotating device, a motor drives a double-end
threaded rod to rotate, the double-end
threaded rod drives a long block to move left and right, an inclined rod drives a transverse block to rotate, then a steel
wire rope drives a sliding block to move up and down, and therefore up-down lifting of the sewage pump is achieved, a worker can conveniently install the sewage pump, operation by the worker is convenient, an electric push rod drives a round rod to move leftwards, the round rod drives a vertical block and a first rack to move leftwards, the first rack drives a gear to rotate, a second rack drives a clamping plate on the left side to move rightwards, the vertical block drives a bent plate to move leftwards, the bent plate drives a clamping plate on the right side to move leftwards, the sewage pump is further fixed, and the situation that when the sewage pump ascends and descends, the sewage pump falls off, and then the sewage pump is damaged is avoided.