Pressure release type leaking stoppage fixture

The utility model discloses a pressure release type leaking stoppage fixture, including sealing device, pressure relief device and fixing device, sealing device includes arc sealing plate, the ring packing groove has been seted up to arc sealing plate's inboard, the ring packing inslot is provided with the sealing washer, pressure relief device includes the drainage tube, stop valve and round platform form pressure release fill, the stop valve sets up the upper end at the drainage tube, round platform form pressure release is fought and is set up the lower extreme at the drainage tube, fixingdevice includes fixed frame, adjusting screw, connecting plate and fastening rope, the screw has been seted up respectively to fixed frame's top and bottom, the guide slot has been seted up to fixed frame's both sides, adjusting screw's both ends wear to establish in fixed frame's screw, it establishes on adjusting screw to connect the sleeve -board, the both ends of connecting plate are located fixed frame's guide slot r