发明申请
US20140140770A1 FLOATING FLAP GATE 有权
浮动翼片门

FLOATING FLAP GATE
摘要:
The object of the present invention is to prevent an overflow of water into living spaces and underground spaces, to prevent difficulties in lower the door body when the water level has dropped, and to prevent the door body from suddenly falling. This is achieved by a floating flap gate 11 which is disposed at an opening or at an access way, so as to block the opening or the access way when water w flows in, and comprises a door body 12 with a forward end which is able to swing upwards, within in a plane in a height direction in a direction in which the water flows in around a base end thereof serving as a fulcrum. A rod 13 is attached to the forward end of the door body 12. One end of a wire rope 14 is attached to the rod 13, and the other end is attached to a counterweight 20 via fixed pulleys 16, 17. The fixed pulley 16 is arranged so that the counterweight 20 is at its lowest point when the angle of inclination of the door body 12 with respect to a horizontal plane reaches within a range from 10° to 80° during raising or lowering of the door body 12.
公开/授权文献
信息查询
0/0