Ventilation device of electric cylinder push-pull ball valve

The utility model relates to a ventilation device of an electric cylinder push-pull ball valve, which comprises a box body and a ventilation channel arranged on the outer side of the box body, the ventilation channel is in threaded connection with a connector, a ball valve body is arranged on the connector, a valve rod is rotatably arranged on the ball valve body, a wrench is connected on the valve rod, and a mounting frame is arranged on one side of the ball valve body. A connecting seat is fixedly mounted on the mounting frame, an electric push rod is hinged to the connecting seat, the output end of the electric push rod is hinged to a wrench, when a smoke sensor in the box body detects that smoke needs to be exhausted, the electric push rod pushes the wrench, and the wrench drives a valve element in the ball valve body to rotate so as to achieve the ventilation function; opening and closing of the ball valve are controlled by pushing and pulling the wrench through the electric push rod, torque needed durin