JP4002593B2 - Water supply equipment - Google Patents

Water supply equipment Download PDF

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Publication number
JP4002593B2
JP4002593B2 JP2001335641A JP2001335641A JP4002593B2 JP 4002593 B2 JP4002593 B2 JP 4002593B2 JP 2001335641 A JP2001335641 A JP 2001335641A JP 2001335641 A JP2001335641 A JP 2001335641A JP 4002593 B2 JP4002593 B2 JP 4002593B2
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Prior art keywords
valve
water supply
water
channel
electrically driven
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JP2003138620A (en
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康裕 白井
智之 水野
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Inax Corp
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Inax Corp
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Description

【0001】
【発明の属する技術分野】
この発明は給水装置に関し、詳しくは電磁弁等の電気駆動弁の開閉によって給水路を開閉し、これによって給水及び給水停止をするようになした給水装置に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
従来、電磁弁の開閉によって給水路を開閉し、これにより給水及び給水停止するようになした給水装置が便器のフラッシュバルブ装置その他として広く用いられている。
【0003】
しかしながら従来のこの種の給水装置の場合、電磁弁を開弁及び閉弁させるための電源を必要とするものであり、而してその電源として商用電源を用いた場合、電源と給水装置との接続のための電気配線工事が必要となって給水装置を設置するための工事が大掛りとなってしまい、ひいては給水装置の設置コストが高いものとなってしまう。
更にまた電源として商用電源を用いた場合、停電時には給水装置が作動不能に陥ってしまう。
【0004】
一方電源として乾電池を用いた場合、予め蓄えておくことのできる電力量に限りがあり、常時乾電池を電源として電磁弁を開閉させるようになしていると乾電池が早く消耗してしまい、電池切れを起し易い問題が生ずる。
而してこの種給水装置にあっても電池切れを起してしまうと給水装置が作動不能に陥ってしまう。
【0005】
この場合、例えば給水路を流れる水流で発電する発電機を設けておくといったことが考えられる。
このようにしておけば、水流を利用して発電を行わせ、その電力を用いて電磁弁を閉弁させるといったことが可能となる。
【0006】
しかしながらこのようにした場合でも当初、即ち水流が生じていない状態において電磁弁を開弁させるための電源が依然として必要である。
この場合において発電機で発生した電力を蓄電池に一時的に蓄えておき、給水装置の使用当初においてその蓄電池を電源として電磁弁等の電気駆動弁を開弁させるといったことも可能である。
【0007】
但しこの場合、例えば給水装置を長期間使用しない場合等に蓄電池が電池切れを起し易く、この場合においても給水装置が作動不能となってしまうと不都合であることから、この種蓄電池を備えた給水装置においても乾電池をバックアップ電池として備えておくといったことが一般に行われる。
即ち電磁弁等の電気駆動弁の開閉によって給水路を開閉する給水装置にあっては、従来これを完全無電源化するといったことは上記の理由によって困難とされていた。
【0008】
【課題を解決するための手段】
本発明の給水装置はこのような課題を解決するために案出されたものである。
而して請求項1のものは、電気的に駆動される給水路開閉用の電気駆動弁を備え、該電気駆動弁の開閉により給水及び給水停止する給水装置において、(イ)前記給水路を開閉する主弁と、
(ロ)小孔を通じて該給水路の該主弁より上流部と連通し、該小孔を通じて該給水路から導入された水の圧力により該主弁を閉弁させる背圧室と、(ハ)該背圧室の水を該給水路且つ該主弁の下流部に抜くための第1水抜水路及び第2水抜水路と、(ニ)給水路を流れる水流により発電する発電機と、を設けて、前記第1水抜水路上に前記電気駆動弁をパイロット弁として設けるとともに、前記第2水抜水路上に、人の操作力で駆動されて該給水路に水流を生ぜしめる起動弁を該電気駆動弁とは別途に設け、該起動弁を開弁することにより、前記背圧室の水圧を消失させて前記主弁を開弁させ、前記給水路に水流を生ぜしめて該水流により前記発電機で発電させ、その電力を前記電気駆動弁に供給し、該電気駆動弁を開弁させて前記第1水抜水路を開放状態とし、前記主弁を開弁状態に保持することを特徴とする。
【0009】
請求項2のものは、請求項において、前記電気駆動弁が電磁弁であることを特徴とする。
【0010】
請求項3のものは、請求項1,2の何れかにおいて、前記電気駆動弁を作動制御する制御部が設けられ、前記発電機で発生した電力に基づいて該電気駆動弁が該制御部の制御の下に閉弁駆動されるようになしてあることを特徴とする。
【0011】
【作用及び発明の効果】
上記のように本発明は、給水路に水流を生ぜしめる起動弁を上記電磁弁等の電気駆動弁とは別途に設けたもので、本発明によれば、その起動弁の開弁操作により給水路に水流を生ぜしめて発電機で発電させることができる。
【0012】
この発電機で発生した電力は電気駆動弁を開弁させるための電力として用いられ、而してこのようにした場合、その後において起動弁を閉じたとしても給水路を水流が流れ続けることとなり、従って発電機はその水流によって発電動作を以後も継続する。
そしてその電力によって給水装置に備えられている各種の電気機器を作動させることが可能となり、或いはまたその後において電気駆動弁を再び閉弁させるための電力として用いることができる
【0013】
即ち本発明によれば、電気駆動弁の開閉によって給水及び給水停止する給水装置を、給水開始から給水停止に至るまで完全無電源化することも可能となる。
但し必要に応じて発電機で発生した電力を蓄電池等の蓄電手段に蓄えておき、これを電源として電気駆動弁の閉弁等を行わせることも可能であるし、或いはまた乾電池等を備えておくことも可能である
【0014】
本発明では、給水路を開閉する主弁と、小孔を通じて給水路に連通し水圧の作用により主弁を閉弁させる背圧室とを設け、且つその背圧室の水を給水路に抜くための第1水抜水路と第2水抜水路とを設けて、その第1水抜水路上に上記電気駆動弁を、また第2水抜水路上に上記起動弁を設けた形態で給水装置を構成する
【0015】
このようになした場合、僅かな力で電気駆動弁を開閉させることができ、また同じく僅かな力で起動弁を開弁操作することができる。
従って電気駆動弁による電力消費を少なく抑えることができるとともに、給水装置を作動開始させるための起動弁の開弁操作を僅かな力で軽く行うことができるようになる。
【0016】
この場合において第1水抜水路と第2水抜水路とは全く独立して別々に設けておいても良いし、或いはまた一部を共通に構成しておくこともできる。
【0017】
本発明においては、上記電気駆動弁を電磁弁となしておくことができる(請求項)。
【0018】
また給水装置に電気駆動弁を作動制御する制御部を設けておき、電気駆動弁の開弁後において例えばタイマのタイムアップにより一定時間後に或いはまた給水路を設定した積算流量だけ水が流れた時点等に電気駆動弁への電力供給によってこれを自動的に閉弁させるといったことが可能である(請求項)。
【0019】
【実施例】
次に本発明の実施例を図面に基づいて詳しく説明する。
図1において10は本例の給水装置で、12はその給水装置10における給水路である。
この給水路12上には、水流により水車を回転させて発電を行う発電機14が設けられている。
16は給水路12を開閉する主弁であって、18はその主体を成す主弁体である。
この例において主弁体18はダイヤフラム弁体とされている。
【0020】
主弁16は、主弁体18を弁座20に着座させることによって給水路12を閉じ、また主弁体18を弁座20から図中上向きに離間させることによって給水路12を開放する。
即ち主弁体18を弁座20に着座させることによって上流側給水路12aと下流側給水路12bとを遮断し、また主弁体18を弁座20から図中上向きに離間させることによって、それら上流側給水路12aと下流側給水路12bとを連通させる。
【0021】
22は主弁体18の背面に形成された背圧室で、主弁体18は通常時はこの背圧室22内の水圧により弁座20に着座した状態、即ち閉弁状態に保持される。
この背圧室22は、主弁体18に形成された小孔24を通じて上流側給水路12aと連通した状態にあり、この上流側給水路12aの水が、この小孔24を通じて背圧室22へと導入されるようになっている。
【0022】
本例の給水装置10にあっては、この背圧室22内の水を下流側給水路12bへと抜くための第1水抜水路26と第2水抜水路28とが設けられており、そしてその第1水抜水路26上に、これを開閉するパイロット弁としての電磁弁30が設けられており、更に第2水抜水路28上にこれを開閉する起動弁32が設けられている。
尚第2水抜水路28は、その一部が第1水抜水路26と共通に構成されている。
【0023】
電磁弁30は、磁性材から成るプランジャ弁体34と、ソレノイドコイル36とを有しており、そのプランジャ弁体34に対するソレノイドコイル36の電磁的な吸引力によって、プランジャ弁体34をスプリング38の付勢力に抗して開弁させ、またプランジャ弁体34に対するソレノイドコイル36の電磁的な反発力によって、プランジャ弁体34を閉弁させるようになっている。
上記第1水抜水路26は、このプランジャ弁体34の開弁及び閉弁動作、即ち電磁弁30の開閉によって背圧室22と下流側給水路12bとを連通させ或いは遮断する。
【0024】
而して背圧室22と下流側給水路12bとが第1水抜水路26を通じて連通すると、背圧室22内の水が第1水抜水路26を通じて下流側給水路12bへと流れ込み、ここにおいて主弁体18に対する背圧室22の水圧が消失して主弁体18が上流側給水路12aの給水圧により開弁し、給水路12に水流を生ぜしめる。
【0025】
尚本例において、電磁弁30は開弁後において開弁状態を、閉弁後において閉弁状態をそれぞれ電力供給のない状態で保持するラッチ式の弁であって、40はプランジャ弁体34を開弁位置に保持するラッチマグネットである。
この電磁弁30の場合、プランジャ弁体34が開弁位置に至るとそのラッチマグネット40の磁力によって、プランジャ弁体34がスプリング38の付勢力に抗して開弁位置に保持される。
尚閉弁位置に至ったプランジャ弁体34は、スプリング38の付勢力によってその閉弁位置に保持される。
【0026】
ここで電磁弁30は、発電機14で発生した電力によって駆動されるようになっている。
図1中42はその電磁弁30を作動制御する制御回路(制御部)である。
上記起動弁32は、弁体44がスプリング46の付勢力によって通常時は閉弁状態にあり、この状態において軸48を図中下向きに押し込むことで弁体44が開弁する。
【0027】
而して弁体44が開弁すると、第2水抜水路28が開放状態となって、背圧室22内の水がこの第2水抜水路28を通じて下流側給水路12bへと流れ込む。
即ちこの起動弁32を図中下向きに押込操作することによっても、背圧室22内の水が下流側給水路12bへと抜き出されて主弁16が開弁動作する。
この場合においても発電機14は給水路12で発生した水流により水車を回転させて発電を行う。
【0028】
尚この例において、第2水抜水路28における起動弁32の上流側の部分と第1水抜水路26における電磁弁30の上流側の部分とは常時連通した状態にある。
この例では、第2水抜水路28の一部が第1水抜水路26と共通する形態で設けられているが、第2水抜水路28を第1水抜水路26とは全く独立に、背圧室22と下流側給水路12bとを連通させる状態で設けることも可能である。
【0029】
次に本例の給水装置10の作用を図2〜図4に基づいて以下に説明する。
図2(I)は主弁16,電磁弁30及び起動弁32の何れもが閉弁状態にあって、給水路12には水流は生じていない。
従ってこの時点では発電機14は停止した状態にある。
【0030】
この状態で、図2(II)に示しているように起動弁32に僅かに力を加えてこれを開弁させると、背圧室22が第2水抜水路28を通じて下流側給水路12bと連通した状態となり、背圧室22内の水がこの第2水抜水路28を通じて下流側給水路12bへと流れ込む。
ここにおいて主弁体18に作用する背圧室22の水圧が消失して、主弁16が図3(III)に示しているように上流側給水路12aの給水圧によって開弁する。
【0031】
この段階で上流側給水路12aと下流側給水路12bとは連通した状態となって給水路12に水流が生じ、その水流によって発電機14の水車が回転して発電を開始し、その電力を制御回路42の制御の下に電磁弁30へと供給する。
これにより電磁弁30が図3(IV)に示しているように開弁し、第1水抜水路26を開放状態とする。
【0032】
従ってこの状態で起動弁32に対する操作力を除いても、即ち図4(V)に示しているように起動弁32がスプリング46の付勢力で閉弁して第2水抜水路28を閉鎖しても、背圧室22は第1水抜水路26を通じて下流側給水路12bと連通した状態に保持され、従って主弁16はその後も依然として開弁状態に保持される。
即ち起動弁32が閉じられても給水路12内には水が流れ続けており、そしてその水流によって発電機14は引続き発電を継続する。
【0033】
そして主弁16が開弁した後、設定した閉弁時期に至ると、ここにおいて制御回路42からの信号によって電磁弁30が図4(VI)に示しているように閉弁し、背圧室22と下流側給水路12bとの連通を断つ。
すると、小孔24を通じて上流側給水路12aの水が背圧室22内に導入されることにより、背圧室22内の水圧が増大し、そしてその水圧が所定圧力に達するとここにおいて主弁16が閉弁し、給水路12を遮断状態とする。
【0034】
尚電磁弁30の閉弁の時期については各種設定が可能である。
例えば電磁弁30が開弁した後、制御回路42においてその後の経過時間をタイマ計測し、そして一定時間経過したところで電磁弁30を閉弁させるようになすこともできるし、或いはまた給水路12を流れる水の積算流量を検知して、その積算流量が設定流量に達したところで電磁弁30を閉弁させるようになすこともできる。
【0035】
ここで給水路12を流れる水の積算流量は発電機14自体によって検知するようになすことができる。
発電機14は給水路12内の水流によって水車を回転させるものであるため、その水車の回転に応じてパルスを発生させることで、更にはそのパルスを制御回路42においてカウントすることで給水路12を流れる水の積算流量を検出することができる。
【0036】
勿論他の手段によって電磁弁30を閉弁するようになすこともできる。
例えば閉弁用のスイッチを設けておいて、そのスイッチからの信号によって電磁弁30を閉弁させるようになすこともできるし、或いはまた人体等を検知するセンサを設けておいて、そのセンサが人体等を検知しなくなったところで電磁弁30を閉弁させるようになすといったことも可能である。
【0037】
以上のような本例の給水装置10においては、起動弁32を人が開弁操作することで発電機14に発電させることができ、そして発生した電力により電磁弁30を開弁させ、その後これを開弁状態に維持することができる。
従って起動弁32を開操作後にこれが閉弁したとしても発電機14に発電を続行させることができ、その後の所望のタイミングで電磁弁30を閉弁駆動して自動的に給水停止することができる。
【0038】
かかる本例の給水装置10においては、給水開始から給水停止に至るまで完全無電源化することができる
【0039】
また本例では、給水路12を開閉する主弁16と、主弁16を閉弁させる背圧室22と、背圧室22の水を給水路12に抜くための第1水抜水路26と第2水抜水路28とを設け、その第1水抜水路26上に電磁弁30を、また第2水抜水路28上に起動弁32を設けているため、僅かな力で電磁弁30を開閉させることができ、電磁弁30による電力消費を少なく抑えることができるとともに、給水装置10を作動開始させるための起動弁32の開弁操作を僅かな力で軽く行うことができる。
【0040】
以上本発明の実施例を詳述したがこれはあくまで一例示である。
例えば図5(A)(同図は参考例を示す)に示しているように、給水路12上に電磁弁30から成る主弁を設けておいて、これにより給水路12を直接開閉するようになすとともに、その主弁をバイパスするバイパス水路50を設けて、そのバイパス水路50上に上記と同様の形態若しくは他の形態の起動弁32を設け、その起動弁32の開弁操作によって、発電機14に水流を供給して発電機14を発電させ、その発電機14から主弁に電力供給してこれを開弁させるといったことも可能であるし、或いはまた図5(B)(参考例を示す)に示しているように、電磁弁30を、主弁16を開閉させるためのパイロット弁として設けておく一方、その主弁16をバイパスする形でバイパス水路50を設けて、そのバイパス水路50上に起動弁32を設けておくといったことも可能である。
【0041】
また上例では主弁体18がダイヤフラム弁体にて構成されているが、本発明においてはかかる主弁体18をピストン弁体その他各種形態の弁体として構成することも可能であるし、また本発明の給水装置10は、一定量の水を流したところで自動的にこれを停止させる定量止水装置に適用することも可能であるし、或いはまた従来用いられている自動水栓に対して、更にはまた便器のフラッシュバルブ装置その他の各種給水装置への適用が可能であるなど、本発明はその主旨を逸脱しない範囲において種々変更を加えた形態で構成可能である。
【図面の簡単な説明】
【図1】 本発明の一実施例である給水装置を示す図である。
【図2】 同実施例の給水装置の作用説明図である。
【図3】 同実施例の給水装置の図2に続く作用説明図である。
【図4】 同実施例の給水装置の図3に続く作用説明図である。
【図5】 参考例の給水装置を示す図である。
【符号の説明】
10 給水装置
12 給水路
14 発電機
16 主弁
22 背圧室
24 小孔
26 第1水抜水路
28 第2水抜水路
30 電磁弁(電気駆動弁)
32 起動弁
42 制御回路(制御部)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water supply apparatus, and more particularly to a water supply apparatus that opens and closes a water supply path by opening and closing an electric drive valve such as an electromagnetic valve, thereby stopping water supply and water supply.
[0002]
[Prior art and problems to be solved by the invention]
2. Description of the Related Art Conventionally, a water supply device that opens and closes a water supply path by opening and closing an electromagnetic valve and thereby stops water supply and water supply is widely used as a flush valve device and the like for toilet bowls.
[0003]
However, in the case of this type of conventional water supply device, a power source for opening and closing the solenoid valve is required. Therefore, when a commercial power source is used as the power source, the power supply and the water supply device Electrical wiring work for connection is required, and the work for installing the water supply apparatus becomes large, and consequently the installation cost of the water supply apparatus becomes high.
Furthermore, when a commercial power source is used as the power source, the water supply device becomes inoperable during a power failure.
[0004]
On the other hand, when a dry cell is used as a power source, there is a limit to the amount of power that can be stored in advance, and if the dry cell is used as a power source to open and close the solenoid valve, the dry cell will be consumed quickly and the battery will run out. Problems that are likely to occur occur.
Thus, even if this kind of water supply apparatus is used, if the battery runs out, the water supply apparatus becomes inoperable.
[0005]
In this case, for example, it is conceivable to provide a power generator that generates power with a water flow flowing through the water supply channel.
If it does in this way, it will become possible to generate electric power using a water flow, and to close a solenoid valve using the electric power.
[0006]
However, even in this case, a power source for opening the solenoid valve is still necessary at the beginning, that is, in a state where no water flow is generated.
In this case, it is also possible to temporarily store the electric power generated by the generator in a storage battery and to open an electrically driven valve such as an electromagnetic valve using the storage battery as a power source at the beginning of use of the water supply device.
[0007]
However, in this case, for example, when the water supply device is not used for a long period of time, the storage battery is likely to run out of battery, and even in this case, it is inconvenient if the water supply device becomes inoperable. In a water supply apparatus, a dry battery is generally provided as a backup battery.
That is, in a water supply apparatus that opens and closes a water supply path by opening and closing an electrically driven valve such as an electromagnetic valve, it has been difficult for the above reasons to completely eliminate the power supply.
[0008]
[Means for Solving the Problems]
The water supply device of the present invention has been devised to solve such problems.
Thus to those of claim 1, comprising an electric driven valve for the water supply passage opening and closing the electrically driven, the water supply device for supplying water and the water supply is stopped by opening and closing of the electric driving valve, the water supply path (A) A main valve that opens and closes;
(B) a back pressure chamber that communicates with the upstream portion of the water supply channel through a small hole and that closes the main valve by the pressure of water introduced from the water supply channel through the small hole; a first drainage water channel and a second drainage canals for removing the water of the back pressure chamber to the downstream portion of the fed-water channel and the main valve, and a generator that generates electricity by water stream flowing through (d) the water supply passage provided Te, wherein with the first drainage providing the electrical drive valve on waterways as a pilot valve, the second drainage on waterways, electric drives start valve is driven by the operating force of human causing a flow of water fed-waterways It is provided separately from the valve, and by opening the starting valve, the water pressure in the back pressure chamber is lost, the main valve is opened, and a water flow is generated in the water supply channel. Generating electric power, supplying the electric power to the electric drive valve, and opening the electric drive valve to form the first drainage channel And an open state, characterized by holding the main valve open.
[0009]
According to a second aspect of the present invention, in the first aspect , the electrically driven valve is a solenoid valve.
[0010]
According to a third aspect of the present invention, in any one of the first and second aspects, a control unit that controls the operation of the electric drive valve is provided, and the electric drive valve is provided on the control unit based on electric power generated by the generator. The valve is driven to be closed under control.
[0011]
[Operation and effect of the invention]
As described above, according to the present invention, the start valve for generating a water flow in the water supply channel is provided separately from the electric drive valve such as the electromagnetic valve. According to the present invention, the water supply is performed by opening the start valve. A water stream can be generated on the road to generate electricity with a generator.
[0012]
The electric power generated by this generator is used as electric power for opening the electric drive valve, and in this case, the water flow continues to flow through the water supply channel even if the start valve is closed thereafter. Therefore, the generator continues to generate electricity by the water flow.
And it becomes possible to operate the various electric equipment with which the water supply apparatus is equipped with the electric power, or it can use as electric power for closing an electric drive valve again after that .
[0013]
That is, according to the present invention, the water supply device that supplies and stops supplying water by opening and closing the electric drive valve can be completely turned off from the start of supply to the stop of supply.
However, it is possible to store the electric power generated by the generator in a power storage means such as a storage battery as necessary, and to use this as a power source to close the electrically driven valve, or to provide a dry battery or the like. it is also possible with your wolfberry.
[0014]
In the present invention , a main valve that opens and closes the water supply channel and a back pressure chamber that communicates with the water supply channel through a small hole and closes the main valve by the action of water pressure are provided, and water in the back pressure chamber is drained into the water supply channel. the first drainage canals and provided with second drainage canals for, constitutes a water supply device of the above electric drive valve in its first draining the water channel, and in the form provided with the activation valve to a second drainage on waterways.
[0015]
In such a case, the electric drive valve can be opened and closed with a slight force, and the start valve can be opened with a small force.
Therefore, power consumption by the electrically driven valve can be suppressed to a low level, and the opening operation of the start valve for starting the operation of the water supply device can be performed lightly with a slight force.
[0016]
In this case, the first drainage channel and the second drainage channel may be provided independently and separately, or a part of them may be configured in common.
[0017]
In the present invention, the electrically driven valve can be an electromagnetic valve (claim 2 ).
[0018]
In addition, a controller for controlling the operation of the electrically driven valve is provided in the water supply device, and when the electrically driven valve is opened, for example, after a certain time due to the time-up of the timer, or when the water flows for the integrated flow rate set in the water supply channel For example, it is possible to automatically close the valve by supplying power to the electric drive valve (claim 3 ).
[0019]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, 10 is a water supply device of this example, and 12 is a water supply channel in the water supply device 10.
A generator 14 is provided on the water supply channel 12 to generate electricity by rotating a water wheel by a water flow.
Reference numeral 16 denotes a main valve that opens and closes the water supply passage 12, and 18 denotes a main valve body that constitutes the main body.
In this example, the main valve body 18 is a diaphragm valve body.
[0020]
The main valve 16 closes the water supply passage 12 by seating the main valve body 18 on the valve seat 20, and opens the water supply passage 12 by separating the main valve body 18 upward from the valve seat 20 in the figure.
That is, the main valve body 18 is seated on the valve seat 20 to shut off the upstream water supply passage 12a and the downstream water supply passage 12b, and the main valve body 18 is separated from the valve seat 20 upward in the figure, thereby The upstream water supply passage 12a and the downstream water supply passage 12b are connected.
[0021]
Reference numeral 22 denotes a back pressure chamber formed on the back surface of the main valve body 18, and the main valve body 18 is normally held in a state of being seated on the valve seat 20 by the water pressure in the back pressure chamber 22, that is, in a closed state. .
The back pressure chamber 22 is in communication with the upstream water supply passage 12 a through a small hole 24 formed in the main valve body 18, and water in the upstream water supply passage 12 a passes through the small hole 24 to back pressure chamber 22. Has been introduced.
[0022]
In the water supply apparatus 10 of this example, a first water drainage channel 26 and a second water drainage channel 28 for draining the water in the back pressure chamber 22 to the downstream side water supply channel 12b are provided, and An electromagnetic valve 30 serving as a pilot valve that opens and closes the first drainage channel 26 is provided, and an activation valve 32 that opens and closes the second drainage channel 28 is provided.
A part of the second drainage channel 28 is configured in common with the first drainage channel 26.
[0023]
The electromagnetic valve 30 includes a plunger valve body 34 made of a magnetic material and a solenoid coil 36, and the plunger valve body 34 is moved to the spring 38 by the electromagnetic attraction force of the solenoid coil 36 with respect to the plunger valve body 34. The valve is opened against the urging force, and the plunger valve body 34 is closed by the electromagnetic repulsive force of the solenoid coil 36 against the plunger valve body 34.
The first drainage channel 26 opens or closes the plunger valve body 34, that is, opens or closes the electromagnetic valve 30 to connect or block the back pressure chamber 22 and the downstream water supply channel 12 b.
[0024]
Thus, when the back pressure chamber 22 and the downstream water supply channel 12 b communicate with each other through the first drainage channel 26, the water in the back pressure chamber 22 flows into the downstream water supply channel 12 b through the first drainage channel 26. The water pressure in the back pressure chamber 22 with respect to the valve body 18 disappears, and the main valve body 18 is opened by the water supply pressure of the upstream water supply passage 12 a, and a water flow is generated in the water supply passage 12.
[0025]
In this example, the solenoid valve 30 is a latch type valve that holds the valve open state after the valve is opened and the valve closed state after the valve is closed in a state where there is no power supply. A latch magnet that holds the valve in the open position.
In the case of the electromagnetic valve 30, when the plunger valve body 34 reaches the valve opening position, the plunger valve body 34 is held at the valve opening position against the biasing force of the spring 38 by the magnetic force of the latch magnet 40.
The plunger valve body 34 that has reached the valve closing position is held at the valve closing position by the biasing force of the spring 38.
[0026]
Here, the electromagnetic valve 30 is driven by electric power generated by the generator 14.
In FIG. 1, reference numeral 42 denotes a control circuit (control unit) that controls the operation of the electromagnetic valve 30.
The starting valve 32 is normally closed by the urging force of the spring 46. In this state, the valve body 44 is opened by pushing the shaft 48 downward in the drawing.
[0027]
Thus, when the valve body 44 is opened, the second drainage channel 28 is opened, and the water in the back pressure chamber 22 flows into the downstream water supply channel 12b through the second drainage channel 28.
That is, even when the start valve 32 is pushed downward in the figure, the water in the back pressure chamber 22 is extracted to the downstream water supply passage 12b and the main valve 16 is opened.
Even in this case, the generator 14 generates electricity by rotating the water turbine by the water flow generated in the water supply channel 12.
[0028]
In this example, the upstream portion of the start valve 32 in the second drainage channel 28 and the upstream portion of the electromagnetic valve 30 in the first drainage channel 26 are always in communication.
In this example, a part of the second drainage channel 28 is provided in a form common to the first drainage channel 26, but the second drainage channel 28 is completely independent of the first drainage channel 26 and the back pressure chamber 22. It is also possible to provide the downstream side water supply channel 12b in communication with each other.
[0029]
Next, the operation of the water supply apparatus 10 of this example will be described below with reference to FIGS.
In FIG. 2I, all of the main valve 16, the electromagnetic valve 30 and the start valve 32 are closed, and no water flow is generated in the water supply path 12.
Therefore, at this time, the generator 14 is in a stopped state.
[0030]
In this state, as shown in FIG. 2 (II), when a slight force is applied to the start valve 32 to open it, the back pressure chamber 22 communicates with the downstream water supply passage 12b through the second drainage passage 28. The water in the back pressure chamber 22 flows into the downstream water supply channel 12b through the second drainage channel 28.
Here, the water pressure in the back pressure chamber 22 acting on the main valve body 18 disappears, and the main valve 16 is opened by the water supply pressure in the upstream water supply passage 12a as shown in FIG. 3 (III).
[0031]
At this stage, the upstream water supply channel 12a and the downstream water supply channel 12b are in communication with each other, a water flow is generated in the water supply channel 12, and the water wheel of the generator 14 is rotated by the water flow to start power generation. This is supplied to the electromagnetic valve 30 under the control of the control circuit 42.
As a result, the electromagnetic valve 30 is opened as shown in FIG. 3 (IV), and the first drainage channel 26 is opened.
[0032]
Therefore, even if the operating force on the starting valve 32 is removed in this state, that is, as shown in FIG. 4 (V), the starting valve 32 is closed by the biasing force of the spring 46 and the second drainage channel 28 is closed. However, the back pressure chamber 22 is maintained in communication with the downstream water supply passage 12b through the first drainage passage 26, and thus the main valve 16 is still maintained in the open state thereafter.
That is, even if the start valve 32 is closed, water continues to flow in the water supply channel 12, and the generator 14 continues to generate electricity by the water flow.
[0033]
Then, when the set valve closing timing is reached after the main valve 16 is opened, the electromagnetic valve 30 is closed as shown in FIG. Communication with 22 and the downstream water supply path 12b is cut off.
Then, the water in the upstream water supply channel 12a is introduced into the back pressure chamber 22 through the small hole 24, whereby the water pressure in the back pressure chamber 22 increases, and when the water pressure reaches a predetermined pressure, the main valve is reached here. 16 closes and water supply path 12 is cut off.
[0034]
Various settings can be made for the closing timing of the solenoid valve 30.
For example, after the solenoid valve 30 is opened, the control circuit 42 can measure the subsequent elapsed time by a timer, and the solenoid valve 30 can be closed when a certain time has elapsed, or the water supply channel 12 can be opened. It is also possible to detect the integrated flow rate of the flowing water and close the solenoid valve 30 when the integrated flow rate reaches the set flow rate.
[0035]
Here, the integrated flow rate of the water flowing through the water supply channel 12 can be detected by the generator 14 itself.
Since the generator 14 rotates the water turbine by the water flow in the water supply channel 12, a pulse is generated according to the rotation of the water turbine, and further, the control circuit 42 counts the pulse so that the water supply channel 12. It is possible to detect the integrated flow rate of the water flowing through.
[0036]
Of course, the electromagnetic valve 30 can be closed by other means.
For example, a switch for closing the valve may be provided, and the electromagnetic valve 30 may be closed by a signal from the switch, or a sensor for detecting a human body or the like may be provided. It is also possible to close the solenoid valve 30 when no human body is detected.
[0037]
In the water supply apparatus 10 of this example as described above, the start valve 32 can be opened by a person so that the generator 14 can generate power, and the electromagnetic valve 30 is opened by the generated power, and then Can be kept open.
Therefore, even if the start valve 32 is closed after the opening operation, the generator 14 can continue to generate power, and the solenoid valve 30 can be driven to close at a desired timing thereafter to automatically stop water supply. .
[0038]
In the water supply apparatus 10 of this example, it is possible to completely eliminate power from the start of water supply to the stop of water supply .
[0039]
In this example, the main valve 16 that opens and closes the water supply channel 12, the back pressure chamber 22 that closes the main valve 16, the first drainage channel 26 that drains the water in the back pressure chamber 22 into the water supply channel 12, and the first Since the two drainage channels 28 are provided, the solenoid valve 30 is provided on the first drainage channel 26, and the start valve 32 is provided on the second drainage channel 28, the solenoid valve 30 can be opened and closed with a slight force. In addition, the power consumption by the electromagnetic valve 30 can be reduced, and the opening operation of the start valve 32 for starting the operation of the water supply apparatus 10 can be performed lightly with a slight force.
[0040]
Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, as shown in FIG. 5 (A) (the figure shows a reference example) , a main valve comprising an electromagnetic valve 30 is provided on the water supply path 12 so that the water supply path 12 can be opened and closed directly. In addition, a bypass water channel 50 that bypasses the main valve is provided, and a start valve 32 of the same form as that described above or another form is provided on the bypass water channel 50, and power generation is performed by opening the start valve 32. It is also possible to supply a water flow to the generator 14 to generate the generator 14 and supply power from the generator 14 to the main valve to open the valve, or FIG. 5B (reference example ) The electromagnetic valve 30 is provided as a pilot valve for opening and closing the main valve 16, while the bypass water channel 50 is provided so as to bypass the main valve 16, and the bypass water channel Launch on 50 32 can also be such a preferably provided.
[0041]
In the above example, the main valve body 18 is formed of a diaphragm valve body. However, in the present invention, the main valve body 18 can be configured as a piston valve body and other various types of valve bodies. The water supply device 10 of the present invention can be applied to a fixed water stop device that automatically stops a fixed amount of water when it flows, or it can be applied to a conventional automatic faucet. Furthermore, the present invention can be configured in various forms without departing from the gist of the present invention, such as being applicable to flush valve devices for toilets and other various water supply devices.
[Brief description of the drawings]
FIG. 1 is a view showing a water supply apparatus according to an embodiment of the present invention.
FIG. 2 is an operation explanatory diagram of the water supply device of the embodiment.
FIG. 3 is an operation explanatory diagram following FIG. 2 of the water supply device of the embodiment.
FIG. 4 is an operation explanatory diagram subsequent to FIG. 3 of the water supply device of the embodiment;
FIG. 5 is a view showing a water supply apparatus of a reference example .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Water supply apparatus 12 Water supply path 14 Generator 16 Main valve 22 Back pressure chamber 24 Small hole 26 1st drainage path 28 2nd drainage path 30 Electromagnetic valve (electrically driven valve)
32 Start valve 42 Control circuit (control unit)

Claims (3)

電気的に駆動される給水路開閉用の電気駆動弁を備え、該電気駆動弁の開閉により給水及び給水停止する給水装置において、
(イ)前記給水路を開閉する主弁と、
(ロ)小孔を通じて該給水路の該主弁より上流部と連通し、該小孔を通じて該給水路から導入された水の圧力により該主弁を閉弁させる背圧室と、
(ハ)該背圧室の水を該給水路且つ該主弁の下流部に抜くための第1水抜水路及び第2水抜水路と、
(ニ)給水路を流れる水流により発電する発電機と、
を設けて、前記第1水抜水路上に前記電気駆動弁をパイロット弁として設けるとともに、前記第2水抜水路上に、人の操作力で駆動されて該給水路に水流を生ぜしめる起動弁を該電気駆動弁とは別途に設け、
該起動弁を開弁することにより、前記背圧室の水圧を消失させて前記主弁を開弁させ、前記給水路に水流を生ぜしめて該水流により前記発電機で発電させ、その電力を前記電気駆動弁に供給し、該電気駆動弁を開弁させて前記第1水抜水路を開放状態とし、前記主弁を開弁状態に保持することを特徴とする給水装置。
In a water supply apparatus comprising an electrically driven valve for opening and closing an electrically driven water supply channel, and supplying and stopping water supply by opening and closing the electrically driven valve,
(A) a main valve that opens and closes the water supply channel;
(B) a back pressure chamber that communicates with the upstream portion of the water supply channel through a small hole and that closes the main valve by the pressure of water introduced from the water supply channel through the small hole;
(C) a first drainage channel and a second drainage channel for draining water from the back pressure chamber to the water supply channel and the downstream portion of the main valve;
(D) a generator for power generation by water flowing through the water supply path,
And an electrically driven valve as a pilot valve on the first drainage channel, and a start valve that is driven by a human operating force on the second drainage channel to generate a water flow in the feedwater channel. Provided separately from the electrically driven valve,
By opening the start valve, the water pressure in the back pressure chamber is lost, the main valve is opened, a water flow is generated in the water supply channel, and the power is generated by the generator using the water flow. A water supply apparatus that supplies an electric drive valve, opens the electric drive valve to open the first drainage channel, and holds the main valve in an open state .
請求項において、前記電気駆動弁が電磁弁であることを特徴とする給水装置。2. The water supply apparatus according to claim 1 , wherein the electrically driven valve is an electromagnetic valve. 請求項1,2の何れかにおいて、前記電気駆動弁を作動制御する制御部が設けられ、前記発電機で発生した電力に基づいて該電気駆動弁が該制御部の制御の下に閉弁駆動されるようになしてあることを特徴とする給水装置。The control unit for controlling the operation of the electric drive valve according to any one of claims 1 and 2 , wherein the electric drive valve is driven to be closed under the control of the control unit based on electric power generated by the generator. A water supply device characterized in that the water supply device is adapted.
JP2001335641A 2001-10-31 2001-10-31 Water supply equipment Expired - Fee Related JP4002593B2 (en)

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JP2005334126A (en) * 2004-05-25 2005-12-08 Matsushita Electric Works Ltd Bathroom unit
JP4607650B2 (en) * 2005-04-26 2011-01-05 株式会社コロナ Fixed water stop device
EP3336266B1 (en) * 2010-04-15 2019-06-26 Woongjin Coway Co., Ltd. Generator and bidet comprising the same

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