| 摘要 |
PROBLEM TO BE SOLVED: To provide a catch basin which prevents a member to switch flow passages of drainage from being lost after switching the same.SOLUTION: A catch basin 20 comprises: a basin body 21 which is almost cylindrical in shape and has an inspection port 31, an inflow port 32, a first outflow port 33 and a second outflow port 34; and flow passage switching means 26 which is attached to and detached from the basin body 21 to switch flow passages of drainage. The flow passage switching means 26 can be switched between a first switching position A to communicate the inflow port 32 with the first outflow port 33 in a state of being attached to the basin body 21 and a second switching position to communicate the inflow port 32 with the second outflow port 34 in the state of being attached to the basin body 21. The basin body 21 has: a first support section 41 to support the flow passage switching means 26 with the same switched to the first switching position A; and a second support section 42 to support the flow passage switching means 26 with the same switched to the second switching position.SELECTED DRAWING: Figure 3 |
