| 摘要 |
PROBLEM TO BE SOLVED: To provide a piping structure capable of setting a projected amount from a connecting metal fitting put on a wall plate and the wall plate of a connecting pipe to a constant value even if the thickness of the wall plate on which the faucet is installed is different in each construction site. SOLUTION: The connecting metal fitting 20 connecting a water supply pipe thereto and the connecting pipe 30 connecting the faucet 60 thereto are respectively arranged to the back side and the front side to the wall plate1, in the piping structure inserted into a wall hole 2 perforated in the wall plate 1 to connect the connecting metal fitting 20 and the connecting pipe 30, a cylindrical body 31 equipped with a watercourse 32 passing fluid therethrough in either the connecting metal fitting 20 or the connecting pipe 30 is formed, the cylindrical body 31 is formed by having a large diameter section 33 forming a male screw section 34 in the outer circumferential surface and a small diameter section 35 putting a sealing material 37 on the outer circumferential surface at a diameter smaller than the large diameter section 33 in the longitudinal direction, a watercourse 42 passing fluid therethrough is formed in the other one, and a female screw section 27 screwing to the male screw section 34 and an insertion fitting section 28 inserting and fitting the small diameter section 35 therein are formed in the inner circumferential surface of a watercourse 21. COPYRIGHT: (C)2007,JPO&INPIT
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