Anti-jamming pneumatic control gate valve and control method thereof

The invention discloses an anti-jamming pneumatic control gate valve, and relates to the technical field of gate valves. The valve comprises a valve body, a valve cover is fixedly connected to the top of the valve body, corresponding grooves are formed in the valve body and the valve cover, and valve plates used for opening and closing the valve body are arranged in the grooves; the valve rod is slidably connected to the top of the groove in a penetrating mode, the bottom of the valve rod is connected with the valve plate in a clamped mode, an air cylinder is fixedly connected to the top of the valve cover, a piston plate is slidably arranged in the air cylinder, the top of the valve rod is slidably connected with the inner wall of the bottom of the air cylinder in a penetrating mode, and the top of the valve rod is fixedly connected to the bottom of the piston plate. The first arc-shaped pad and the second arc-shaped pad can be driven to move in the groove while the valve plate moves, impurities in the groov