Prestressed duct grouting equipment

The utility model discloses prestressed duct grouting equipment which comprises a fixing disc, a sealing mechanism is fixedly connected to one side of the fixing disc, an arc-shaped sealing ring is fixedly connected to the position, on the top of the sealing mechanism, of one side of the fixing disc, and a connecting pipeline is fixedly connected to the top of the side, away from the sealing mechanism, of the fixing disc. A fixing shell is fixedly connected to the top of the connecting pipeline, a supporting rod is fixedly connected to the bottom of the inner wall of the fixing shell, a sealing floating ball is installed in the fixing shell, a plurality of bolts are installed on a fixing disc, and a grouting pipe opening is fixedly connected to the center of the side, away from the sealing mechanism, of the fixing disc. And a pressure sensor is mounted at the front end of the fixed disc. By designing the connecting pipeline and forming the opening in the top of the fixing disc, it can be guaranteed that air i