A unloading blowout preventer for oil field production

The utility model belongs to the technical field of oil field auxiliary assembly, concretely relates to an unloading blowout preventer for oil field production. The device includes buffer disc, screwthread change head and unloading connector, and the buffer disc both sides are equipped with the female connection head of symmetric distribution, and left female connection head becomes first threaded connection with the screw thread, and the female connection head and unloading connector threaded connection, the one end that the screw thread becomes the head on right side are equipped with the external screw thread, and its other end is equipped with the internal thread, the circular cavity left end welding of buffer disc has the water diversion disk, is equipped with four forward distributive pipes of circumference equipartition on the outer circumference of water diversion disk, and the water diversion disk right -hand member is equipped with the honeycomb duct, is equipped with four reverse distributive pipes