Alarm device for pipe network fault rescue

The utility model discloses an alarm device for pipe network fault rescue, which comprises a pipeline body, a connecting pipe, a supporting box and a cover plate, the connecting pipe is connected between the pipeline body, flanges are respectively arranged at two ends of the pipeline body and the connecting pipe, the pipeline body is connected with the connecting pipe through the flanges, and thesupporting box is connected with the cover plate through the flanges. The connecting pipe is connected and fixed through a second bolt and a bolt, a supporting box is arranged on the connecting pipe,a first limiting block and a second limiting block are arranged in the supporting box, a flow sensor and a pipeline pressure sensor are installed at the positions, located on the two sides of the first limiting block and the two sides of the second limiting block, in the supporting box, and a first fixing block is arranged in the supporting box. Second fixing blocks are arranged on the two sides of the first limiting block