A shutoff gasbag for pipeline intersection

The utility model relates to a municipal works field specifically discloses a shutoff gasbag for pipeline intersection. This shutoff gasbag includes the barrel that elastic material made, the both ends of barrel are equipped with the head, just head and barrel enclose synthetic main pressure -bearing cavity, the pressurization that is equipped with the main pressure -bearing cavity of intercommunication on one of them head connects, still include the branch pipe of making and being connected with the barrel by elastic material, the branch pipe to keep away from the one end of barrel sealed toat an intraductal vice pressure -bearing cavity who feeds through with main pressure -bearing cavity that is equipped with. It is above the shutoff gasbag be connected with the branch pipe at the barrel, can carry out the shutoff simultaneously to trunk line and side pipe simultaneously, solved the problem that pipeline intersection can't be applied to to current shutoff gasbag. 本实用新型涉及市政工程领域，具体公开了种用于管道交汇处的封堵气囊。该封堵气囊包括弹性材