A repairing apparatus of branch-pipe and linkage of waterworks and sewer and repairing method utilizing it

摘要

The present invention relates to a maintenance device connections and this repair method using a sewage pipe and the branch pipe by a trenchless method, a pair of frames; A hollow shaft can be installed rotating on the center of each of the frame; Grinder installed at the frame to be able to remove the projecting portion of the branch pipe protruding into the sewage pipe; In order to seal the both sides of the sewage pipe with respect to the branch pipe, and has a Django type body expandable by air supplied from the outside provided in the shaft so as to form a predetermined space for sealing between the outer circumferential face of the shaft , the additional expansion member provided nozzles capable of ejecting a working fluid in the center of Django-type body; Sub-expansion member in communication with the closed space is installed detachably to the nozzle part so as to enable expansion of the inflatable member to the maintenance of a sewer pipe and a meeting site, so as to seal the inside of the branch pipe; And by rotating the shaft in either direction about the center of the frame in order to position the sub-expansion member in a straight line in the lower part of the branch pipe, and a rotation means provided on the frame.