| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a catch basin that allows drain water to smoothly flow out of the catch basin when abnormality occurs to a duct connected to the catch basin and the flow passage of the drain is changed.SOLUTION: A catch basic 20 includes: a basin body 21 having an inspection opening 31 which is opened upward, an inflow opening 32 which is formed at a side part and in which drain water flows, and a first outflow opening 33 and a second outflow opening 34 which are formed at side parts and out of which the drain water flows, and also having a space inside; and a rotary body 26 which is provided in the basin body 21 and freely rotates in the basin body 21. The rotary body 26 has an upper surface part 44 provided apart upward from a lower end of the basin body 21 and a groove part 42 recessed downward from the upper surface part 44, and rotates in the basin body 21 so as to change its position between a first switching position where the groove part 42 closes the inflow opening 32 and first outflow opening 33 and a second switching position where the groove part 42 closes the inflow opening 32 and second outflow opening 34.</p> |
