REPAIRING DEVICE OF A LARGE WASTE WATER BRANCH PIPELINE USING A REPAIRING MEMBER

摘要

A repairing device of a large sewage pipe using a repairing member is provided to allow for ease of handling, installation and removal of equipment for a large sewage pipe having a diameter of 450mm to 1,200mm or larger. A repairing device of a large sewage pipe using a repairing member, comprises a branch pipe repairing member(50) attached to an inner surface of a joint between a large main pipe(10) and a branch pipe(20); an expansion unit(36) which is arranged to tightly contact an inner surface of the branch pipe repairing member, and expands or contracts in accordance with internal pressure; a first support member(30) for supporting the expansion unit; and a second support member(60) having one side connected or disconnected to or from the first support member, and the other side supported at an inner surface of the large main pipe. The branch pipe repairing member includes a branch pipe PVC sheet part attached to an inner surface of the branch pipe; an annular main pipe PVC sheet part integrally extended from one end of the branch pipe PVC sheet part; a branch pipe pelt part fitted into an inner surface of the branch pipe PVC sheet part; and an annular main pipe pelt part integrally extended from one end of the branch pipe pelt part.