Patent ID: 9011042
Filing Date: 2015-04-21
Classification: E02B

Abstract:
1. A floating body connection-type flap gate disposed on a roadway surface in an opening, comprising a door body, which rises to block the opening when water is trying to flow in from the opening from a horizontal direction toward the gate, by using water pressure of the water which is trying to flow in and a buoyancy of the door body, wherein the door body is formed with two or more door body blocks which are separated in a vertical direction in a deployed state, the vertically separated door body blocks being connected by a rotation mechanism for rotation relative to the horizontal axis, wherein a first block of the two or more door body blocks is closer to inbound water flow along the horizontal axis than a second block of the two or more door body blocks, when in a lower condition wherein the first door body block is configured to rotate at least partially away from the horizontal axis before the second door body block; and wherein the second door body block rotates to its final deployed position prior to the first door body block rotating to its final deployed position.