| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a joint for siphon drain system that can suppress an overflow of washing water from an insertion port side of a washing hose when a siphon drain pipe is washed.SOLUTION: A joint 60 for siphon drain system has an inflow connection part 64 composed of a hole communicating with a hollow part 60A, and a vertical pipe 26 can be inserted. Washing water jetted from a nozzle part 84 during washing flows downstream to flow in the hollow part 60A from the inflow connection part 64. Then the washing water flows to an outflow connection part 66 arranged opposite the inflow connection part 64, passes through a confluence part joint 42 and a joint 40, and flows out to a drain riser 12. An insert part 68 is provided with a roller pair 68R, which can rotate in contact with an outer surface of a washing hose 80.</p> |
