This evacuation structure (1) has: a box-type structure body (6) that is not completely watertight, and is provided with at least one hatch door (4); a float (10) provided to the box-type structure body (6); and at least one drainage pipe (50) that has one end (50A) opening in the interior of the box-type structure body (6) and another end (50B) opening in an outer wall (3C-3D) above the load waterline (LWL). The one or more drainage pipes (50) have a check valve (60) comprising a valve that stops the inflow of water into the interior of the box-type structure body (6), and opens when water pressure of the exhaust water from the interior of the box-type structure body (6) is applied.
Evacuation structure
16.12.2021
Patent
Elektronische Ressource
Englisch