| 摘要 |
PURPOSE: A non-excavation type repair method of a drainpipe and a device thereof are provided to repair damaged parts in case that the diameter of the damaged drainpipe is larger than a manhole inlet as a device throwing hole. CONSTITUTION: A ring member(10) formed in an arc shape is provided to easily repair the damaged parts of the larger pipe than a manhole inlet as a device throwing hole in diameter. The ring member forms supporting rings disposed at front and rear ends connected with each other by a ring coupling unit. A plurality of support bars(20) form a supporting frame(1) by connecting with a bar coupling unit. An expansion tube(30) is fitted to the supporting frame formed by supporting ring and the supporting bar to form at least one air chamber. The supporting frame moves along the drainpipe with wheels(40).
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