Gate for scouring sediment in pump tank

The utility model relates to the technical field of gates, in particular to a gate for scouring sediment in a pump tank, which is characterized in that after a reversing switch is operated clockwise, the motor is rotated to drive a gear which drives a gate rod to lift a gate plate, a red indicator lamp is lit up and a limit switch pointer points at an open position; when the gate needs to be closed, a green lamp is lit up and the pointer points at a close position after anticlockwise operation is done and the gate plate is pressed down, a middle gate opening is blocked or cleared, water flows into a water tank from two sides of the gate opening or from the whole gate opening, and the water is guided by a guide buttress to flow to two sides of the water tank or into a whole channel, so that the water is of great scouring force and scours away deposited sediment on two sides of the water tank and then the sediment is pumped away by a water pump to an irrigation area; and when power fails or the motor fails, the