Pipe jacking sand blowing plugging device

The utility model provides a pipe jacking sand blowing plugging device which comprises a rubber air bag body and an air supply pipe. The rubber air bag body comprises a fixing unit, a switch valve and a connector. The fixing unit is fixed to the rubber air bag and used for fixing the rubber air bag. The joint is fixed on the rubber air bag and is communicated with the rubber air bag; a switch valve is arranged on the connector and used for opening and closing a pipeline of the connector. The air supply pipe is detachably connected with the connector and used for supplying air into the rubber air bag. The utility model has the benefits that the working efficiency of pipe jacking and sand blowing is improved, the operability of pipeline plugging is improved, and the service life is prolonged. 本实用新型提供了一种顶管吹砂封堵装置，包括橡胶气囊主体、供气管；橡胶气囊主体包括固定单元、开关阀、接头；固定单元固定在橡胶气囊上，用于固定橡胶气囊；接头固定在橡胶气囊上，并与橡胶气囊导通；接头上设置有开关阀，用于打开\闭合接头的管道；供气管与接头可拆卸连接，用于供给橡胶气囊内部的气体。本实用新型有益效果：加快顶管吹砂的工作效率，提高管道封堵的操作性和使用年限。