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A platform for research: civil engineering, architecture and urbanism
WATERTIGHT STRUCTURE FOR FLAP GATE AND FLAP GATE COMPRISING SAME
[Problem] To provide a watertight structure for a flap gate and a flap gate comprising same that allow a large gap between a door and the bottom face of a floodgate opening even without a threshold step in a state in which no external force other than gravity is applied and that can maintain watertightness with the floodgate opening when closed. [Solution] A watertight structure in a flap gate 1 provided with a weight-balance supported door 2 to open an opening 200 of a floodgate 100 in a state in which no external force other than gravity is applied, wherein the structure has: a gap opening-closing member 72 that oscillates in the water flow direction and opens and closes a gap C, wherein the gap C is provided between the lower edge 23 of the door 2 and the bottom face 300 of the floodgate 100 in a state in which the door 2 is blocking the floodgate 100; and an opening operation assist means 73 for operating the gap opening-closing member 72 so as to be in an open state by lifting same toward the outer water side.
WATERTIGHT STRUCTURE FOR FLAP GATE AND FLAP GATE COMPRISING SAME
[Problem] To provide a watertight structure for a flap gate and a flap gate comprising same that allow a large gap between a door and the bottom face of a floodgate opening even without a threshold step in a state in which no external force other than gravity is applied and that can maintain watertightness with the floodgate opening when closed. [Solution] A watertight structure in a flap gate 1 provided with a weight-balance supported door 2 to open an opening 200 of a floodgate 100 in a state in which no external force other than gravity is applied, wherein the structure has: a gap opening-closing member 72 that oscillates in the water flow direction and opens and closes a gap C, wherein the gap C is provided between the lower edge 23 of the door 2 and the bottom face 300 of the floodgate 100 in a state in which the door 2 is blocking the floodgate 100; and an opening operation assist means 73 for operating the gap opening-closing member 72 so as to be in an open state by lifting same toward the outer water side.
WATERTIGHT STRUCTURE FOR FLAP GATE AND FLAP GATE COMPRISING SAME
WASSERDICHTE STRUKTUR FÜR KLAPPENTOR UND DAMIT VERSEHENES KLAPPENTOR
STRUCTURE ÉTANCHE À L'EAU POUR PORTE À RABAT ET PORTE À RABAT COMPRENANT CELLE-CI
ONODERA TETSUO (author) / SASAYAMA KOJI (author) / TSUCHIYA TOSHIO (author)
2022-11-30
Patent
Electronic Resource
English
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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