Swing check valve

The utility model relates to the technical field of valves, in particular to a swing check valve which comprises a valve body and a blocking device, one end of the valve body is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with a connector, the upper surface of the valve body is provided with a cover plate, the interior of the valve body is rotatably connected with a check valve plate, and the check valve plate is fixedly connected with the blocking device. And the blocking device is arranged in the cover plate and comprises a connecting column and a blocking rod, the connecting column is fixedly connected with the surface of the cover plate, the blocking rod is fixedly connected with the surface of the check valve plate, and a connecting rod is slidably connected into the connecting column. According to the utility model, by arranging the blocking device, the check valve plate is effectively limited, the effect of limiting the check valve plate is achieved, th