Air bag for pipeline repair

The utility model discloses an air bag for pipeline repair, and belongs to the technical field of municipal pipeline repair, the air bag comprises an air bag body, fixing plates are fixedly mounted at the two cylindrical ends of the air bag body, moving assemblies are arranged on the fixing plates, and each moving assembly comprises a mounting seat fixedly mounted on the corresponding fixing plate; a guide seat is fixedly mounted on the mounting seat, and a movable sleeve is rotatably mounted on the inner side of the guide seat. According to the air bag for pipeline repair, the fixing plate, the mounting base, the guide base, the movable sleeve and the rolling wheels are arranged on the outer side of the air bag body, so that the air bag body can be in contact with the ground through the rolling wheels to be conveniently pushed when the air bag body is vertically placed, and the moving convenience of the air bag body is improved; the extrusion block can slidably abut against and push the movable sleeve and th