Shield tail rapid emergency sealing device

The utility model provides a maintainable shield tail rapid emergency sealing device, which relates to the field of shield tail rapid emergency sealing, and adopts the technical scheme that the maintainable shield tail rapid emergency sealing device comprises mounting seats uniformly arranged on the inner wall of a shield tail, and further comprises an inflatable sealing ring, the inflatable sealing ring surrounds a duct piece and is provided with an air pipe, the air pipe is communicated with an air source, and the air source is communicated with the air pipe. An inner ring of the inflatable sealing ring can abut against an elastic supporting piece, the elastic supporting piece is of a multi-section structure and comprises a plurality of sub-supporting pieces, the fixed ends of the sub-supporting pieces are detachably connected with the installation base, the movable ends of the sub-supporting pieces are movably arranged in the supporting base, and the movable ends of the sub-supporting pieces are detachably