Security type pneumatic gate valve with emergency power

The utility model discloses a guarantee type pneumatic gate valve with emergency power, which comprises a valve body, a valve rod is arranged on the inner wall of the valve body, a fixing frame is fixedly connected to one side face of the valve body, a first sealing plate is slidably connected to the inside of the fixing frame, a second sealing plate is arranged on one side face of the fixing frame, and the first sealing plate and the second sealing plate are fixedly connected with the valve rod. A sealing ring is fixedly connected to one side face of the second sealing plate, and a limiting rod is fixedly connected to one side face of the second sealing plate. According to the device, the two fixing frames are arranged in the valve body, then the second sealing plate is horizontally controlled to move so that the second sealing plate can be far away from the fixing frames, or the first sealing plate is controlled to move upwards, so that the fixing frames are opened and closed, the valve is opened and closed