Stopper is a kind of repair the pipe with pipe stopper, also known as the card after section, consisting of symmetrical complexes, LAN card after pressure, sealing ring, sealing strip, fasteners, card complex cavity in the body, the external V, LAN card complex flange and oral pressure joint use of concave and convex shape ring links up, up, down card at complex connecting sealing strip seals, and by the bolt and nut fastening, its structure is simple, easy to use, can be widely used in water supply and drainage and all kinds of liquid, gas, pressure pipeline of trachoma, porosity, transverse and longitudinal fracture caused by leaking air leakage accident, save work, time and cost saving.