Counter weight type hydraulic butterfly valve

The utility model discloses a heavy hammer type hydraulic butterfly valve which comprises a supporting seat, a valve body is fixedly connected to the upper portion of the supporting seat, a valve rod is rotatably connected to the interior of the valve body, valve plates are fixedly connected to the two ends of the valve rod, sealing rings are arranged in the middles of the valve plates and the valve body, a base is arranged on one side of the supporting seat, and a sealing ring is arranged on the other side of the supporting seat. A connecting seat is arranged above the base, a supporting frame is fixedly connected to the upper portion of the connecting seat, one end of the valve rod penetrates through the supporting frame to be arranged in the supporting frame, a bearing is arranged at the joint of the valve rod and the supporting frame, and the valve rod and the electric cabinet can control rotation of the raft, the heavy hammer rod and the heavy hammer. And the heavy hammer can correspond to the electromag