Inner plugging sleeve for building electromechanical pipeline

The utility model discloses an inner plugging sleeve for building electromechanical pipelines, which comprises a wall body, a pre-buried pipeline is mounted in the wall body, a sealing cover is mounted at one end of the pre-buried pipeline, a sealing mechanism is arranged between the sealing cover and the pre-buried pipeline, and the sealing mechanism is connected with the pre-buried pipeline. The sealing mechanism comprises a rotating rod, a moving plate, a fixed plate, a sealing air ring, a limiting block and a limiting groove, the rotating rod is rotationally connected to the interior of the pre-buried pipeline, the fixed plate is fixedly connected to the surface of one end of the rotating rod located in the pre-buried pipeline, and a moving plate is arranged on the side, close to the sealing cover, of the fixed plate. A sealing air ring is arranged between the movable plate and the fixed plate, limiting blocks are fixedly connected to the two sides of the movable plate, limiting grooves are formed in the