| 摘要 |
PROBLEM TO BE SOLVED: To provide a water cut-off device capable of readily changing a water cut-off height according to the amount of water which is to invade.SOLUTION: A water cut-off device comprises: a storage part consisting of storage areas respectively provided in a recesses manner in both side faces of a gateway and a floor face; a water cut-off sheet stored in the storage area provided in a recessed manner in the floor face in a foldable manner, with a plurality of water cut-off shafts attached in parallel with the width direction of the gateway and arranged apart from each other; and a plurality of engaging parts formed respectively so as to be vertically separated from each other in the storage areas respectively provided in a recesses manner in both side faces of the gateway, and engaging with the plurality of water cut-off shafts, respectively. A bottom edge of the water cut-off sheet is fixed to a bottom face of the storage area provided in a recesses manner in the floor face, and the water cut-off sheet can switch over the water cut-off shafts to be engaged with the plurality of engaging parts among the plurality of water cut-off shafts according to the water level of water to be cut off. |
