| 摘要 |
PURPOSE: A pipe with a coupling structure along a circumference direction is provided to be applied to a wire protection pipe or a refrigerant transferring pipe of an air conditioner by keeping strong joint power of a joint part through thermal fusion. CONSTITUTION: A pipe with a coupling structure along a circumference direction comprises hills(111,121) and valleys(112,122). A diameter reduced portion(120) is formed along the longitudinal direction in the form of a slit. A first recessed portion(121a) is formed on the side of the hill of the diameter reduced portion. A second recessed portion(111a) inserted into the first recessed portion is formed on the side of the valley of an existing pipe diametral portion(110).
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