A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a vent valve capable of closing a vent hole more surely.SOLUTION: A vent valve 100 includes: a vent valve body 110; a valve body 120; and a packing 130 arranged between a body side holding surface 115 and a valve body side holding surface 122, and held and pressed by the body side holding surface 115 and the valve body side holding surface 122 when the valve body 120 moves to a closed position. The packing 130 includes: a fixing part 138 fixed to the vent valve body 110; and a sealing part 131 extending from a base end adjacent to the fixing part 138 to a tip, and elastically deforms by being held and pressed by the body side holding surface 115 and the valve body side holding surface 122. The sealing part 131 has a first surface 132 opposing to the body side holding surface 115. In a cross sectional view cut along the radial direction of an original shape of the sealing part 131, when the valve body 120 is in an open position, a second surface 133 of the sealing part 131 has a substantially linear shape, and is inclined with respect to the valve side holding surface 122 so that a distance between itself and the valve side holding surface 122 reduces toward the tip.SELECTED DRAWING: Figure 13
【課題】より確実に通気口を閉塞することが可能な通気弁を提供する。【解決手段】通気弁１００は、通気弁本体１１０と、弁体１２０と、本体側挟持面１１５及び弁体側挟持面１２２の間に配置され、弁体１２０が閉塞位置に移動したときに本体側挟持面１１５及び弁体側挟持面１２２に挟圧されるパッキン１３０と、を備える。パッキン１３０は、通気弁本体１１０に固定された固定部１３８と、固定部１３８に隣接する基端から先端にかけて延在し、本体側挟持面１１５及び弁体側挟持面１２２に挟圧されて弾性変形する封止部１３１とを備える。封止部１３１は、本体側挟持面１１５に対向する第１面１３２を有する。封止部１３１の原形状の径方向に沿って切断した断面視において、弁体１２０が開放位置にあるとき、封止部１３１の第２面１３３は、略直線形状を有するとともに、先端に向かうにつれて弁体側挟持面１２２との間の距離が小さくなるように弁体側挟持面１２２に対して傾斜している。【選択図】図１３
PROBLEM TO BE SOLVED: To provide a vent valve capable of closing a vent hole more surely.SOLUTION: A vent valve 100 includes: a vent valve body 110; a valve body 120; and a packing 130 arranged between a body side holding surface 115 and a valve body side holding surface 122, and held and pressed by the body side holding surface 115 and the valve body side holding surface 122 when the valve body 120 moves to a closed position. The packing 130 includes: a fixing part 138 fixed to the vent valve body 110; and a sealing part 131 extending from a base end adjacent to the fixing part 138 to a tip, and elastically deforms by being held and pressed by the body side holding surface 115 and the valve body side holding surface 122. The sealing part 131 has a first surface 132 opposing to the body side holding surface 115. In a cross sectional view cut along the radial direction of an original shape of the sealing part 131, when the valve body 120 is in an open position, a second surface 133 of the sealing part 131 has a substantially linear shape, and is inclined with respect to the valve side holding surface 122 so that a distance between itself and the valve side holding surface 122 reduces toward the tip.SELECTED DRAWING: Figure 13
【課題】より確実に通気口を閉塞することが可能な通気弁を提供する。【解決手段】通気弁１００は、通気弁本体１１０と、弁体１２０と、本体側挟持面１１５及び弁体側挟持面１２２の間に配置され、弁体１２０が閉塞位置に移動したときに本体側挟持面１１５及び弁体側挟持面１２２に挟圧されるパッキン１３０と、を備える。パッキン１３０は、通気弁本体１１０に固定された固定部１３８と、固定部１３８に隣接する基端から先端にかけて延在し、本体側挟持面１１５及び弁体側挟持面１２２に挟圧されて弾性変形する封止部１３１とを備える。封止部１３１は、本体側挟持面１１５に対向する第１面１３２を有する。封止部１３１の原形状の径方向に沿って切断した断面視において、弁体１２０が開放位置にあるとき、封止部１３１の第２面１３３は、略直線形状を有するとともに、先端に向かうにつれて弁体側挟持面１２２との間の距離が小さくなるように弁体側挟持面１２２に対して傾斜している。【選択図】図１３
VENT VALVE AND PIPING STRUCTURE
通気弁及び配管構造
NAKAMURA ATSUSHI (author)
2018-10-25
Patent
Electronic Resource
Japanese
PROTECTIVE MEMBER FOR VENT VALVE, VENT VALVE DEVICE AND PIPING STRUCTURE
| European Patent Office | 2019