Powerful magnetic positioning air bag external plugging device

The utility model provides a powerful magnetic positioning air bag external plugging device which is high in installing speed, small in installing resistance, high in adaptability to a leakage face and suitable for plugging a large pipeline. According to the technical scheme, the powerful magnetic positioning air bag external plugging device comprises powerful magnetic mechanisms, a shell and an air bag, wherein the powerful magnetic mechanisms are arranged at the two ends of the shell respectively, the air bag is inlaid in the shell, stretches to the outer side through an open pore in the shell and is connected with a compressor conduit, each powerful magnetic mechanism is provided with an own independent magnetic switch, and the powerful magnetic mechanisms and the shell are connected together through hinges. The external plugging device can be widely applied to the technical fields of plugging treatment on leakage of dangerous sources, safe pipeline conveying and powerful magnetic positioning.