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A platform for research: civil engineering, architecture and urbanism
FREEZING PREVENTION MECHANISM OF WATER SUPPLY PIPE
To provide a freezing prevention mechanism of a water supply pipe which has a compact structure and can achieve a cost reduction.SOLUTION: A faucet valve body unit 3 includes: a hollow chamber 44 provided within a lower part of a spindle 4 and having a sub valve seat 46 on a bottom wall upper wall, a movable body 11 which is housed in the hollow chamber 44 so as to be movable in a vertical direction, a sub valve body 14 provided at a lower end of the movable body 11, a first spring 15 which biases the movable body 11 upward, and a second spring 16 which biases the movable body 11 downward and is made of shape memory alloy as a freezing prevention mechanism. The movable body 11 is formed into a substantially cylindrical shape with a closed bottom and has a spring receiver part 121 protruding to the radial outer side at its upper end. The first spring 15 is disposed between the spring receiving part 121 and a bottom wall of the hollow chamber 44 at the outer side of the movable body 11. The second spring 16 is disposed between a bottom part of the movable body 11 and an upper wall of the hollow chamber 44 at the inner side of the movable body 11.SELECTED DRAWING: Figure 2
【課題】コンパクトな構成であって、コストが抑えられる給水配管の凍結防止機構を提供する。【解決手段】水栓弁体ユニット3は、凍結防止機構として、スピンドル4の下部内に設けられかつ底壁上面に副弁座46を有する中空室44、中空室44に上下移動自在に収容された移動体11、移動体11の下端に設けられた副弁体14、移動体11を上向きに付勢する第１スプリング15、および移動体11を下向きに付勢する形状記憶合金製の第２スプリング16を備えている。移動体11は、略有底筒状となされていて、その上端に径方向外方に突出したスプリング受け部121を有している。第１スプリング15は、移動体11の外側においてスプリング受け部121と中空室44の底壁との間に介在されている。第２スプリング16は、移動体11の内側において移動体11の底部と中空室44の上壁との間に介在されている。【選択図】図２
FREEZING PREVENTION MECHANISM OF WATER SUPPLY PIPE
To provide a freezing prevention mechanism of a water supply pipe which has a compact structure and can achieve a cost reduction.SOLUTION: A faucet valve body unit 3 includes: a hollow chamber 44 provided within a lower part of a spindle 4 and having a sub valve seat 46 on a bottom wall upper wall, a movable body 11 which is housed in the hollow chamber 44 so as to be movable in a vertical direction, a sub valve body 14 provided at a lower end of the movable body 11, a first spring 15 which biases the movable body 11 upward, and a second spring 16 which biases the movable body 11 downward and is made of shape memory alloy as a freezing prevention mechanism. The movable body 11 is formed into a substantially cylindrical shape with a closed bottom and has a spring receiver part 121 protruding to the radial outer side at its upper end. The first spring 15 is disposed between the spring receiving part 121 and a bottom wall of the hollow chamber 44 at the outer side of the movable body 11. The second spring 16 is disposed between a bottom part of the movable body 11 and an upper wall of the hollow chamber 44 at the inner side of the movable body 11.SELECTED DRAWING: Figure 2
【課題】コンパクトな構成であって、コストが抑えられる給水配管の凍結防止機構を提供する。【解決手段】水栓弁体ユニット3は、凍結防止機構として、スピンドル4の下部内に設けられかつ底壁上面に副弁座46を有する中空室44、中空室44に上下移動自在に収容された移動体11、移動体11の下端に設けられた副弁体14、移動体11を上向きに付勢する第１スプリング15、および移動体11を下向きに付勢する形状記憶合金製の第２スプリング16を備えている。移動体11は、略有底筒状となされていて、その上端に径方向外方に突出したスプリング受け部121を有している。第１スプリング15は、移動体11の外側においてスプリング受け部121と中空室44の底壁との間に介在されている。第２スプリング16は、移動体11の内側において移動体11の底部と中空室44の上壁との間に介在されている。【選択図】図２
FREEZING PREVENTION MECHANISM OF WATER SUPPLY PIPE
給水配管の凍結防止機構
ENDO TOMOYA (author)
2019-10-24
Patent
Electronic Resource
Japanese