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 ball type fire hydrant that has small fluid resistance with a valve open, and can securely prevent a jet flow from an outflow side in an operation with the valve open while minimizing the number of components and being reduced in overall height.SOLUTION: The ball type fire hydrant has a spherical or hemispherical valve body 1, a valve box 2 which has the valve body 1 accommodated rotatably inside via a stem 3, and is provided to discharge water from an inflow port 20 through an outflow port 21 by rotation of the valve body 1, and a mouthpiece 5 for external hose connection which is provided on the side of the outflow port 21 of the valve box 2. The mouthpiece 5 is connected to the valve box 2, and a jet flow guide part 30 which guides a jet flow generated as the valve body 1 is opened to an inner periphery of the mouthpiece 5 is provided at an inner periphery on the side of the outflow port 21 of the valve box 2. The angle of the jet flow guide part 30 is provided substantially in parallel with an outer peripheral tangent L of the valve body 1 opposed to the jet flow guide part 30.SELECTED DRAWING: Figure 1
【課題】弁開時の流体抵抗の少ないボール式消火栓であって、部品点数を最小に抑え、全体の高さを低減しつつ、弁開動作時における流出側からの噴流を確実に防止できるボール式消火栓を提供する。【解決手段】球形状或は半球状の弁体１と、この弁体１がステム３を介して内部に回動自在に収納され、弁体１の回転により流入口２０から流出口２１を介して放水可能に設けられた弁箱２と、この弁箱２の流出口２１側に設けられた外部のホース接続用の口金５とを有する。口金５が弁箱２に接続されていると共に、弁箱２の流出口２１側の内周に、弁体１の開動作に伴って生じる噴流が口金５内周に誘導される噴流誘導部３０が設けられ、この噴流誘導部３０の角度がこの噴流誘導部３０に対向される弁体１の外周接線Ｌと略平行に設けられている。【選択図】 図１
PROBLEM TO BE SOLVED: To provide a ball type fire hydrant that has small fluid resistance with a valve open, and can securely prevent a jet flow from an outflow side in an operation with the valve open while minimizing the number of components and being reduced in overall height.SOLUTION: The ball type fire hydrant has a spherical or hemispherical valve body 1, a valve box 2 which has the valve body 1 accommodated rotatably inside via a stem 3, and is provided to discharge water from an inflow port 20 through an outflow port 21 by rotation of the valve body 1, and a mouthpiece 5 for external hose connection which is provided on the side of the outflow port 21 of the valve box 2. The mouthpiece 5 is connected to the valve box 2, and a jet flow guide part 30 which guides a jet flow generated as the valve body 1 is opened to an inner periphery of the mouthpiece 5 is provided at an inner periphery on the side of the outflow port 21 of the valve box 2. The angle of the jet flow guide part 30 is provided substantially in parallel with an outer peripheral tangent L of the valve body 1 opposed to the jet flow guide part 30.SELECTED DRAWING: Figure 1
【課題】弁開時の流体抵抗の少ないボール式消火栓であって、部品点数を最小に抑え、全体の高さを低減しつつ、弁開動作時における流出側からの噴流を確実に防止できるボール式消火栓を提供する。【解決手段】球形状或は半球状の弁体１と、この弁体１がステム３を介して内部に回動自在に収納され、弁体１の回転により流入口２０から流出口２１を介して放水可能に設けられた弁箱２と、この弁箱２の流出口２１側に設けられた外部のホース接続用の口金５とを有する。口金５が弁箱２に接続されていると共に、弁箱２の流出口２１側の内周に、弁体１の開動作に伴って生じる噴流が口金５内周に誘導される噴流誘導部３０が設けられ、この噴流誘導部３０の角度がこの噴流誘導部３０に対向される弁体１の外周接線Ｌと略平行に設けられている。【選択図】 図１
BALL TYPE FIRE HYDRANT
ボール式消火栓
KATAGIRI RYUSUKE (author)
2018-02-15
Patent
Electronic Resource
Japanese
Floating ball fire hydrant and fire hydrant accessory processing technology
| European Patent Office | 2022
FIRE HYDRANT, FIRE HYDRANT VALVE, AND FIRE HYDRANT APPARATUS PROVIDED WITH IT
| European Patent Office | 2019
Fire hydrant, fire hydrant stem, and fire hydrant upper stem assembly
| European Patent Office | 2020