Gate for water conservancy channel

The utility model discloses a gate for a water conservancy channel, and belongs to the technical field of gates for water conservancy channels. A rotating rod is arranged on one side of the lower end of the water channel, a threaded groove is formed in the outer wall of the rotating rod, a driving wheel is arranged at the lower end of the rotating rod, a filter plate is arranged at the right end of the gate, a lead screw is arranged at the upper end of the filter plate in a penetrating mode, and a driven wheel is fixedly arranged at the lower end of the lead screw. A sliding block is arranged in the chute, a buoy is arranged at the upper end of the sliding block, a balancing weight is fixedly arranged at one end of the sliding block, a scraper is arranged at the upper end of the right side of the filter plate, and a chute is formed in the left end of the scraper. By arranging the filter plate, garbage accumulated at the gate can be fished up when the gate is closed, the situation that the service life of the