| 摘要 |
A joint apparatus of corrugated pipes is provided to facilitate maintenance and repair by having air-tightness and water-tightness between two adjacent corrugated pipes and by not using adhesive and molding. A joint apparatus of corrugated pipes comprises a connection unit, a watertight bag, a board material, a steel plate band, and a joint unit. The connection unit is connected to the inside of the end of the one side of the adjacent corrugated pipes and is inserted into the inside of the end part of the other side of the adjacent corrugated pipes and connects the end part of the one side and the end part of the other side of the adjacent corrugated pipes. The watertight bag wraps the outside of the connected part between the end part of the corrugated pipe and the end part of the other corrugated pipe. The board material wraps the outside of the watertight bag. The steel plate band wraps the outside of the board material. The joint unit adamantly and adherently binds the steel plate band.
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