| 摘要 |
A connecting device of dual type corrugation pipes is provided to prevent deviation of connection part in case external force is applied and maintain sealing against water by installing T-shape joining tool and sealing. A connecting device of dual type corrugation pipes comprises a sealing member adhered to the tip edge of dual type corrugation pipes, surrounding a flange(22) of a T-type joining tool(20). Both ends of the sealing member is arranged parallel with a sleeve(21) extended to both directions from the flange in order to be interposed between an inner level pipe(11) of the dual type corrugation pipes and the sleeve. Upper and lower blades are formed in both ends cut. The upper and lower blades are closely pushed against the inner level pipe and the sleeve through water pressure.
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