Air bag for blocking pipeline with water

The utility model provides a pipeline plugging air bag with water, and belongs to the technical field of plugging devices. The blocking air bag comprises an air bag body and an air inflation end fixing device arranged at the air inflation end of the air bag body. An annular protrusion is arranged on the outer surface of the air bag. The inflation end fixing device comprises clamping pieces located on the inner side and the outer side of the inflation end. A hollow screw tube with an inflation hole and an air outlet hole is arranged at the inflation end, and the hollow screw tube penetrates through the clamping pieces located on the inner side and the outer side of the inflation end and then is fixed through fixing nuts. According to the pipeline water-carrying plugging air bag, water blocking plugging can be rapidly and effectively carried out on pipelines with different pipe diameters, and the good water blocking plugging effect can be achieved when the pipeline water-carrying plugging air bag is used for pi