Pipeline leaking stoppage clamp

A pipeline leaking stoppage clamp relates to a pipeline repairing tool and comprises a reinforcing ring (1) and a barrel (2), the barrel in the reinforcing ring (1) is integrated, a sealing gasket is arranged at the contact position of the bottom of the clamp and a pipeline, and a pipeline valve connector (5) is fixedly welded with an upper cover plate (4) and then welded with the barrel (2) to form a sealed cavity. Two chain supports (10) are welded on the outer side of the cylinder body (2) and are used for fixing a lead screw and chain combination (12); a support reinforcing rib (11) is welded below the chain support (10); the sealing gasket (3) is mounted at the bottom of the cylinder body (2) for sealing; the valve (6) and the oil pipe connector (7) are connected together through threads and then installed on the valve connector (5) through threads. An elliptical head (8) is welded at the top end of the barrel; and the reinforcing ring (1) is welded on the pipeline. The leaking stoppage clamp body is tig