Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide a flap gate that prevents dirt such as sediment, driftwood or the like from being deposited upstream of a door body by moving the suspension position where the door body is suspended to a downstream side so as to put the door body away from door stop hardware when the water level is low, and also automatically cuts off and drains water according to variation in upstream and downstream water level and prevents excessive fluctuations due to waves and strong winds by quickly moving the suspension position to a fully closed position when the water level rises.SOLUTION: There is provided a flap gate characterized in that: a door body 1 is suspended rotatably from a tip part of a door body suspension arm 21 through suspension metal fittings 13; a counter weight 4 is installed at the tip part of the weight arm 22; a tip part of an expansion rod 32 that a both-rod type hydraulic cylinder 3 has is connected rotatably to a tip part of a rod arm 23; and the expansion rod 32 expands and contracts as the door body 1 is opened and closed, and also easily moves in a direction in which the door body 1 is closed, but hardly moves in a direction in which the door body 1 is opened.SELECTED DRAWING: Figure 1
【課題】低水位時には扉体を懸垂する吊り位置を下流側に移動させて扉体を戸当金物より離し、扉体の上流側に土砂や流木等の塵芥が堆積しないようにし、水位の上昇時には吊り位置を素早く全閉位置として、上・下流水位の変動に対し確実に自動止水・排水を行うようにするとともに、波浪や強風による過度な揺動を防止することのできるフラップゲートを提供すること。【解決手段】扉体吊下げアーム２１の先端部に吊り金具１３を介して扉体１を回動自在に懸垂し、ウェイトアーム２２の先端部にカウンタウェイト４を設置し、ロッドアーム２３の先端部に両ロッド式油圧シリンダー３が有する伸縮ロッド３２の先端部を回動自在に接続し、伸縮ロッド３２は扉体１の開閉に伴って伸縮し、かつ、扉体１が閉まる方向に対しては動き易く、扉体１が開く方向に対しては動き難いフラップゲート。【選択図】図１
PROBLEM TO BE SOLVED: To provide a flap gate that prevents dirt such as sediment, driftwood or the like from being deposited upstream of a door body by moving the suspension position where the door body is suspended to a downstream side so as to put the door body away from door stop hardware when the water level is low, and also automatically cuts off and drains water according to variation in upstream and downstream water level and prevents excessive fluctuations due to waves and strong winds by quickly moving the suspension position to a fully closed position when the water level rises.SOLUTION: There is provided a flap gate characterized in that: a door body 1 is suspended rotatably from a tip part of a door body suspension arm 21 through suspension metal fittings 13; a counter weight 4 is installed at the tip part of the weight arm 22; a tip part of an expansion rod 32 that a both-rod type hydraulic cylinder 3 has is connected rotatably to a tip part of a rod arm 23; and the expansion rod 32 expands and contracts as the door body 1 is opened and closed, and also easily moves in a direction in which the door body 1 is closed, but hardly moves in a direction in which the door body 1 is opened.SELECTED DRAWING: Figure 1
【課題】低水位時には扉体を懸垂する吊り位置を下流側に移動させて扉体を戸当金物より離し、扉体の上流側に土砂や流木等の塵芥が堆積しないようにし、水位の上昇時には吊り位置を素早く全閉位置として、上・下流水位の変動に対し確実に自動止水・排水を行うようにするとともに、波浪や強風による過度な揺動を防止することのできるフラップゲートを提供すること。【解決手段】扉体吊下げアーム２１の先端部に吊り金具１３を介して扉体１を回動自在に懸垂し、ウェイトアーム２２の先端部にカウンタウェイト４を設置し、ロッドアーム２３の先端部に両ロッド式油圧シリンダー３が有する伸縮ロッド３２の先端部を回動自在に接続し、伸縮ロッド３２は扉体１の開閉に伴って伸縮し、かつ、扉体１が閉まる方向に対しては動き易く、扉体１が開く方向に対しては動き難いフラップゲート。【選択図】図１
FLAP GATE
フラップゲート
FUJII MICHIHIRO (Autor:in)
06.07.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau