A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a shutoff valve which can properly prevent a freeze of water in a waterway.SOLUTION: A shutoff valve F has an eccentric pipe 10 having an upstream-side first conduit 11 extending in a pipe axial direction which forms a waterway T, and a downstream-side second conduit 12 extending in an orthogonal direction from the first conduit 11, a cylindrical spindle 20 movably assembled into the eccentric pipe 10 in the pipe axial direction along the first conduit 11, and a low-temperature operation valve mechanism 30 assembled into an accommodation part 23 which is formed in a cylinder of the spindle 20. The spindle 20 has a packing 24 for shutting off the waterway T by abutting on a shutoff valve seat 11C which is formed at the first conduit 11, a communication path 21B for making the accommodation part 23 communicate with the inside of the first conduit 11, and a water leak hole B2 for making the accommodation part 23 communicate with atmospheric air which does not pass the waterway T. When a temperature of the accommodation part 23 reaches a prescribed temperature or higher, the low-temperature operation valve mechanism 30 blocks the water leak hole B2, and when the temperature goes down below the prescribed temperature, the low-temperature operation valve mechanism opens the water leak hole B2, thus constituting a temperature-sensing type valve mechanism.SELECTED DRAWING: Figure 9
【課題】通水路内の水の凍結を適切に防止することが可能な止水栓を提供すること。【解決手段】止水栓Ｆは、通水路Ｔを成す管軸方向に延びる上流側の第１管路１１及び第１管路１１から直交方向に延びる下流側の第２管路１２を備える偏心管１０と、偏心管１０の管内に第１管路１１に沿って管軸方向に移動可能に組み込まれる筒状のスピンドル２０と、スピンドル２０の筒内に形成された収容部２３に組み込まれる低温作動弁機構３０と、を有する。スピンドル２０が、第１管路１１に形成された止水弁座１１Ｃとの当接により通水路Ｔを止水するパッキン２４と、収容部２３を第１管路１１の管内と連通させる連通路２１Ｂと、収容部２３を通水路Ｔを通らない外気と連通させる漏水孔Ｂ２と、を有する。低温作動弁機構３０が、収容部２３の温度が所定温度以上となることで漏水孔Ｂ２を塞ぎ、所定温度未満となることで漏水孔Ｂ２を開く感温式の弁機構とされる。【選択図】図９
To provide a shutoff valve which can properly prevent a freeze of water in a waterway.SOLUTION: A shutoff valve F has an eccentric pipe 10 having an upstream-side first conduit 11 extending in a pipe axial direction which forms a waterway T, and a downstream-side second conduit 12 extending in an orthogonal direction from the first conduit 11, a cylindrical spindle 20 movably assembled into the eccentric pipe 10 in the pipe axial direction along the first conduit 11, and a low-temperature operation valve mechanism 30 assembled into an accommodation part 23 which is formed in a cylinder of the spindle 20. The spindle 20 has a packing 24 for shutting off the waterway T by abutting on a shutoff valve seat 11C which is formed at the first conduit 11, a communication path 21B for making the accommodation part 23 communicate with the inside of the first conduit 11, and a water leak hole B2 for making the accommodation part 23 communicate with atmospheric air which does not pass the waterway T. When a temperature of the accommodation part 23 reaches a prescribed temperature or higher, the low-temperature operation valve mechanism 30 blocks the water leak hole B2, and when the temperature goes down below the prescribed temperature, the low-temperature operation valve mechanism opens the water leak hole B2, thus constituting a temperature-sensing type valve mechanism.SELECTED DRAWING: Figure 9
【課題】通水路内の水の凍結を適切に防止することが可能な止水栓を提供すること。【解決手段】止水栓Ｆは、通水路Ｔを成す管軸方向に延びる上流側の第１管路１１及び第１管路１１から直交方向に延びる下流側の第２管路１２を備える偏心管１０と、偏心管１０の管内に第１管路１１に沿って管軸方向に移動可能に組み込まれる筒状のスピンドル２０と、スピンドル２０の筒内に形成された収容部２３に組み込まれる低温作動弁機構３０と、を有する。スピンドル２０が、第１管路１１に形成された止水弁座１１Ｃとの当接により通水路Ｔを止水するパッキン２４と、収容部２３を第１管路１１の管内と連通させる連通路２１Ｂと、収容部２３を通水路Ｔを通らない外気と連通させる漏水孔Ｂ２と、を有する。低温作動弁機構３０が、収容部２３の温度が所定温度以上となることで漏水孔Ｂ２を塞ぎ、所定温度未満となることで漏水孔Ｂ２を開く感温式の弁機構とされる。【選択図】図９
SHUTOFF VALVE
止水栓
YOSHIDA JUNKI (author)
2024-02-22
Patent
Electronic Resource
Japanese