DRAINAGE TRAP

摘要

PROBLEM TO BE SOLVED: To positively prevent the back flow of odor from the lower reaches side while eliminating a water leak with positive locking of a mounting part with no accumulation of dirt at a floor fitting part. SOLUTION: In this drainage trap, a cover body 1 for covering a floor face opening part B is provided with drain pipe connection parts 3, 31to which a drain pipe C fittingly inserted in the floor face opening part B is connected, and a hose connection part 2 to which a washing machine drain hose is connected through a hose joint 6. An engaging part 15 formed at the hose connection part 2 is detachably provided with a packing holder 12 for covering the cover body 1, to cover and integrate the cover body 1 and the hose joint 6. Further, a bottomed seal water cylinder body 8 opened at the upper face and fittingly inserted and held to the drain pipe connection part 31of the cover body 1 and the hose joint 6 is disposed in the drain pipe C, and a partition piece 9 for partitioning the interior of the seal water cylinder body 8 into an inlet side passage 81and an outlet side passage 82is disposed hanging down while forming a communicating opening 10 for flowing water, on the bottom side. An outflow port 11 is formed in the peripheral wall upper position of the seal water cylinder body 8 of the outlet side passage 82. COPYRIGHT: (C)2004,JPO&NCIPI