| 摘要 |
PROBLEM TO BE SOLVED: To smoothly introduce drainage water from a drainage system in a building to a public pit. SOLUTION: In a water-collecting pit 1, one or more partition walls 203 are provided in a pit body 2 to obtain a plurality of partitioned water collecting parts 201, 202. A plurality of inflow-side connection parts 3, 4, 5, 6, 7, 8 are extended from the water collecting parts 201, 202, respectively, and outflow-side connection parts 901, 902 are extended from the water collecting parts 201, 202, respectively. In the water-collecting pit 1, the drainage water flowing into the water-collecting pit 1 is prevented from being intervened by the partition walls 203, so that the drainage water can flow toward the public pit smoothly without causing a reverse flow. COPYRIGHT: (C)2007,JPO&INPIT
|
