| 摘要 |
PROBLEM TO BE SOLVED: To provide an open-close jig of a water storage gate, capable of easily operating the water storage gate installed in a manhole.SOLUTION: A drainage system 10 for a temporary toilet includes: vertical pipes 12 each of which is installed matched with an installation position of a toilet bowl installed on a ground G and makes fluidized material flow; drain horizontal pipes 13a, 13b which connect the vertical pipes 12 and discharge the fluidized material toward a sewage pipe; and a water storage gate 17 which opens and closes a flow passage of the drain horizontal pipes 13a, 13b, and stores or discharges the fluidized material in the drain horizontal pipes 13a, 13b. The plurality of drain horizontal pipes 13a, 13b are disposed and installed at mutually different height positions. The plurality of drain horizontal pipes 13a, 13b are mutually connected to a confluent piping 14 which joins and makes the fluidized material flowing in the drain horizontal pipes 13a, 13b toward the sewage pipe, and the water storage gate 17 is disposed on the downstream side of the confluent piping 14. |
