JP3876579B2

JP3876579B2 - Local cleaning equipment

Info

Publication number: JP3876579B2
Application number: JP33367099A
Authority: JP
Inventors: 隆久齋藤; 和嗣林
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1999-11-25
Filing date: 1999-11-25
Publication date: 2007-01-31
Anticipated expiration: 2019-11-25
Also published as: JP2001152513A

Description

【０００１】
【発明の属する技術分野】
本発明は、洗浄水量を可変調整して肛門洗浄、ビデ洗浄等の人体局部洗浄を行う局部洗浄装置に関するものである。
【０００２】
【従来の技術】
従来から、洗浄水量を可変調整して肛門洗浄、ビデ洗浄等の人体局部洗浄を行う局部洗浄装置は知られており、例えば、図１３、１４に示すような構成のものも考えられている。
【０００３】
該局部洗浄装置においては、水道元から分岐水栓15を経由し、大きなゴミ等を除去するストレーナー16、洗浄装置本体への流入水量を略一定に制限する定流量弁17を経て、洗浄動作時に同洗浄装置本体へと洗浄水を供給するために開く給水電磁弁18に配管接続されている。
【０００４】
給水電磁弁18からは、該給水電磁弁18以降の圧力が高くなると作動して洗浄装置本体の内部を保護する圧逃がし弁19を経由し、洗浄水タンク１へと配管接続されている。洗浄水タンク１では、サーミスタ等で温度検出されてシーズヒータへの電力制御（制御手段28による）が行われ、洗浄用の水が適度な温水となるように加熱・保温されて溜めおかれる。
【０００５】
洗浄水タンク１の出口からは、主水路34と一定量の洗浄水を流す分岐水路35とに分岐配管され、同主水路34には電磁開閉弁３が設けられており、その下流側で同主水路34と分岐水路35とは再び合流配管されている。そして、合流された配管は、洗浄水の流量を可変調整すると共に、肛門洗浄、ビデ洗浄の各洗浄部位に対応して使用される洗浄ノズル２を変更調整する流量切替機構22を経由し、同各洗浄ノズル２へと配管接続されており、該いずれかの洗浄ノズル２から噴出される洗浄水によって、肛門洗浄或いはビデ洗浄が選択的に行われる。
【０００６】
この場合、図１５に示すように、給水電磁弁18は洗浄動作時に開き、水道元の圧力が利用されて洗浄水は洗浄ノズル２から噴出される。流量切替機構22は、所望の洗浄水量の調整、及び、肛門洗浄或いはビデ洗浄に使用される洗浄ノズル２を切り替えることで洗浄部位の変更を行う機構である。又、圧逃がし弁19は、定流量弁17以降の内部圧力が所定値以上とならないように、該所定値以上の圧力になると開いて水を外部へ放出するものである。
【０００７】
そして、図１５に示すように、洗浄動作時に短時間で強／弱（流量の大／小）を制御するときには、電磁開閉弁３がＯＮ／ＯＦＦ制御される。このとき、電磁開閉弁３がＯＦＦ（開）状態であると、図１３に示すように、同電磁開閉弁３を有する主水路34と分岐水路35の両水路に洗浄水が流れて、強（洗浄水量大）の洗浄状態となる。又、電磁開閉弁３がＯＮ（閉）状態であると、図１４に示すように、分岐水路35にのみ洗浄水が流れて、弱（洗浄水量小）の洗浄状態となる。この場合、ＯＮ／ＯＦＦの時間は 0.1〜2 秒であり、特に、電磁開閉弁３が電磁弁であることから、 0.1秒という早いＯＮ／ＯＦＦが実現され得る。
【０００８】
【発明が解決しようとする課題】
しかしながら、上記従来の技術においては、電磁開閉弁３を有する主水路34と分岐水路35とが洗浄タンク１の外部で、該洗浄タンク１とは別に配管接続されているため、次のような問題があった。
【０００９】
すなわち、洗浄水タンク１の出口と電磁開閉弁３との間や該電磁開閉弁３のハウジングそのものに十分な水密性を付与する必要があり、配管スペースも大きく必要となって、コスト高や装置の大型化につながるという問題があった。又、この場合、流路が長くなって、電磁開閉弁３の動作時に生じる過渡的な圧力上昇が短時間で吸収されず、同電磁開閉弁３の内部或いは洗浄水タンク１の内部までもに大きな圧力が発生し、同電磁開閉弁３や洗浄水タンク１の内部に繰り返し応力が作用して、これ等に寿命劣化が起こるという問題があった。しかも、流路が長くなることで、電磁開閉弁３を有する主水路34や分岐水路35等を配管接続して組み立てる作業が複雑化し、洗浄ノズル２の先端における強／弱切替の応答性も悪くなるという問題があった。
【００１０】
本発明は、上記従来の技術における問題を悉く解決するために発明されたもので、その課題は、構造が簡単でコンパクトに納まると共に、組立性も良好で低コスト化につながり、水密性が確保されて水漏れ等の心配もなく、しかも、過渡的な圧力上昇が低減されて長寿命化が図られ、洗浄ノズルの先端における強／弱切替の応答性も向上される局部洗浄装置を提供することである。
【００１１】
【課題を解決するための手段】
本発明の請求項１、２記載の局部洗浄装置は、洗浄水タンクから洗浄ノズルへの流量を制御する電磁開閉弁を備え、該電磁開閉弁は弁座と該弁座の弁流通路を開閉する弁本体とを有するものとして構成された局部洗浄装置であって、弁座及び弁本体を洗浄水タンク内に収容すると共に該洗浄水タンクの出口部分に同弁座を設けて、該弁座の弁流通路と同洗浄水タンクの出口流通路とを洗浄ノズルへの送水流路として一体共用化してなる。
【００１２】
したがって、この場合、電磁開閉弁を構成する弁座及び弁本体が洗浄水タンク内に収容されるため、該収容される部分のハウジングとして同洗浄水タンクを共用することができ、コンパクトに納まると共に水密性も確保されて、低コスト化が図られる。しかも、洗浄水タンクの出口部分に設けられる弁座の弁流通路と同洗浄水タンクの出口流通路とが、洗浄ノズルへの送水流路として一体共用化されるため、配管接続が簡略化されて組立性が良好となり、流路が全体として短くなって、電磁開閉弁の動作時に生じる過渡的な圧力上昇が低減され、長寿命化が図られると共に、洗浄ノズルの先端における強／弱切替の応答性も向上される。
【００１３】
又、本発明の請求項１記載の局部洗浄装置は、洗浄水タンクから洗浄ノズルへと水を供給する送水筒を同洗浄水タンク内に立設して該送水筒の上端部に弁座を設け、同送水筒にて送水流路を形成したことを特徴とする。
【００１４】
したがって、この場合は特に、洗浄水タンク内に立設される送水筒の上端部に弁座が設けられて同送水筒が送水流路となるため、該送水流路内を洗浄水は略直線的に流下することになり、この部分を経由して洗浄ノズルへと至る流路が短くなって、同洗浄ノズルの先端における強／弱切替の応答性がより向上される。
又、本発明の請求項２記載の局部洗浄装置は、電磁開閉弁を経由せずに洗浄水タンクから洗浄ノズルへと水を送水するバイパス流路を設けたことを特徴とする。
したがって、この場合は特に、電磁開閉弁が動作して閉状態となっても、バイパス流路を通じて洗浄水タンクから洗浄ノズルへと送水されるため、該動作時に生じる過渡的な圧力上昇が確実に吸収されて抑えられ、同電磁開閉弁や洗浄水タンクの内圧上昇が低減される。
更に、本発明の請求項２記載の局部洗浄装置は、洗浄水タンク内に連通するバイパス入口を送水流路の途中に設けて、該送水流路とバイパス流路とを一体共用化したことを特徴とする。
したがって、この場合は特に、洗浄水タンク内に連通するバイパス入口を送水流路の途中に設けることで、該送水流路とバイパス流路とが一体共用化されるため、同洗浄水タンクにバイパス口を形成してその外部にバイパス流路を別途に配管接続する必要がなく、部品点数、組立工数の削減が図られる。しかも、バイパス流路が短くなって、電磁開閉弁のＯＮ／ＯＦＦ時間のより短縮化（短い周期での強／弱洗浄）が図られ、洗浄ノズルの先端における強／弱切替の応答性もより向上されて、洗浄時間を短くすることが可能となる。
【００１５】
本発明の請求項３記載の局部洗浄装置は、上記請求項１又は２記載の局部洗浄装置において、電磁開閉弁の作動方向が上下方向でその動作方向が上から下となるように、該電磁開閉弁を洗浄水タンクに取り付けたことを特徴とする。
【００１６】
したがって、この場合は特に、電磁開閉弁の作動方向が上下方向でその動作方向が上から下となるため、該電磁開閉弁は重力の補助を受けて速く動作し、同電磁開閉弁のＯＮ／ＯＦＦ時間のより短縮化（短い周期での強／弱洗浄）を図ることができ、洗浄ノズルの先端における強／弱切替の応答性もより向上される。
【００１７】
本発明の請求項４記載の局部洗浄装置は、上記請求項１〜３のいずれか一つに記載の局部洗浄装置において、弁本体を動作させるコイル及び鉄心等の電磁部品が洗浄水タンクの外部に位置するよう、該洗浄水タンクに電磁開閉弁を取り付けたことを特徴とする。
【００１８】
したがって、この場合は特に、弁本体を動作させるコイル及び鉄心等の電磁部品が洗浄水タンクの外部に位置するため、これ等電磁部品の絶縁性や耐食性を確保することができ、長期使用にあっても安定した性能が保持される。
【００１９】
本発明の請求項５記載の局部洗浄装置は、上記請求項４記載の局部洗浄装置において、洗浄水タンクに取付用開口部を形成し、該取付用開口部に電磁開閉弁を外側から取り付けるようになしたことを特徴とする。
【００２０】
したがって、この場合は特に、電磁開閉弁が洗浄水タンクに形成された取付用開口部に外側から取り付けられるようになっているため、該取付用開口部内に弁本体を外側から挿入し、コイル及び鉄心等の電磁部品は外側に残して、同電磁開閉弁をその一部分だけを差し込むように取り付けて簡単に組み立てることができる。
【００２１】
本発明の請求項６記載の局部洗浄装置は、上記請求項５記載の局部洗浄装置において、電磁開閉弁が取り付けられない施工状態で、取付用開口部に取り付けられてこれを閉塞するカバー板を備えたことを特徴とする。
【００２２】
したがって、この場合は特に、電磁開閉弁が取り付けられない施工状態で、取付用開口部にカバー板を取り付けてこれを閉塞することができるため、該施工状態になる商品と、電磁開閉弁が取り付けられた施工状態となる商品とで、すなわち、機能別商品間で洗浄水タンクを共用化することができる。
【００２３】
本発明の請求項７記載の局部洗浄装置は、上記請求項１、３〜６のいずれか一つに記載の局部洗浄装置において、電磁開閉弁を経由せずに洗浄水タンクから洗浄ノズルへと水を送水するバイパス流路を設けたことを特徴とする。
【００２４】
したがって、この場合は特に、電磁開閉弁が動作して閉状態となっても、バイパス流路を通じて洗浄水タンクから洗浄ノズルへと送水されるため、該動作時に生じる過渡的な圧力上昇が確実に吸収されて抑えられ、同電磁開閉弁や洗浄水タンクの内圧上昇が低減される。
【００２７】
【発明の実施の形態】
図１〜６は、本発明の請求項１〜７全てに対応する一実施形態を示し、該実施形態の局部洗浄装置は、洗浄水タンク１から洗浄ノズル２（肛門用の洗浄ノズル2a、ビデ用の洗浄ノズル2b）への流量を制御する電磁開閉弁３を備え、該電磁開閉弁３は弁座４と該弁座４の弁流通路５を開閉する弁本体６とを有しており、ＯＮ作動で閉状態となるものとして構成されたものであって、弁座４及び弁本体６を洗浄水タンク１内に収容すると共に該洗浄水タンク１の出口部分に同弁座４を設けて、該弁座４の弁流通路５と同洗浄水タンク１の出口流通路とを洗浄ノズル２への送水流路７として一体共用化してなる。
【００２８】
この場合、洗浄水タンク１から洗浄ノズル２へと水を供給する送水筒８を同洗浄水タンク１内に立設して該送水筒８の上端部に弁座４を設け、同送水筒８にて送水流路７を形成している。又、電磁開閉弁３の作動方向が上下方向でその動作方向が上から下となるように、該電磁開閉弁３を洗浄水タンク１に取り付けている。ここでは、弁本体６を動作させるコイル９及び鉄心10等の電磁部品が洗浄水タンク１の外部に位置するよう、該洗浄水タンク１に電磁開閉弁３を取り付けている。そして、洗浄水タンク１に取付用開口部11を形成し、該取付用開口部11に電磁開閉弁３を外側から取り付けるようになしている。
【００２９】
又、図１１に示すように、電磁開閉弁３が取り付けられない施工状態で、取付用開口部11に取り付けられてこれを閉塞するカバー板12を備えている。更に、電磁開閉弁３を経由せずに洗浄水タンク１から洗浄ノズル２へと水を送水するバイパス流路13を設けている。ここでは、洗浄水タンク１内に連通するバイパス入口14を送水流路７（送水筒８）の途中に設けて、該送水流路７とバイパス流路13とを一体共用化している。
【００３０】
該実施形態の局部洗浄装置においては、図２、４、６に示すように、水道元から分岐水栓15を経由し、大きなゴミ等を除去するストレーナー16、洗浄装置本体への流入水量を略一定に制限する定流量弁17を経て、洗浄動作時に同洗浄装置本体へと洗浄水を供給するために開く給水電磁弁18に配管接続されている。
【００３１】
給水電磁弁18からは、該給水電磁弁18以降の圧力が高くなると作動して洗浄装置本体の内部を保護する圧逃がし弁19（約1.5Kgf/cm2程度圧力）を経由し、洗浄水タンク１へと配管接続されている。洗浄水タンク１では、サーミスタ20で温度検出されてシーズヒータ21への電力制御（制御手段28による）が行われ、洗浄用の水が適度な温水となるように加熱・保温されて溜めおかれる。
【００３２】
洗浄水タンク１の上壁側端部に取り付けられた電磁開閉弁３からは、送水流路７（送水筒８）或いはバイパス流路13を経由して、流量切替機構22へと連通接続されている。流量切替機構22では、洗浄水の流量が可変調整されると共に、肛門洗浄、ビデ洗浄の各洗浄部位に対応して使用される洗浄ノズル2a、2bが変更調整される。流量切替機構22には各洗浄ノズル2a、2bが連結されており、該いずれかの洗浄ノズル2a、2bから噴出される洗浄水によって、肛門洗浄或いはビデ洗浄が選択的に行われる。なお、図２において、23は給水ホース、24はフロートスイッチである。
【００３３】
この場合、図１５に示すように、給水電磁弁18は洗浄動作時に開き、水道元の圧力が利用されて洗浄水は洗浄ノズル２から噴出される。流量切替機構22は、所望の洗浄水量の調整、及び、肛門洗浄或いはビデ洗浄に使用される洗浄ノズル２を切り替えることで洗浄部位の変更を行う機構である。又、圧逃がし弁19は、定流量弁17以降の内部圧力（洗浄水タンク１や電磁開閉弁３や洗浄ノズル２等の流路内部の圧力）が所定値以上とならないように、該所定値以上の圧力になると開いて水を外部へ放出するものである。
【００３４】
このような構成において、電磁開閉弁３そのものは、洗浄水タンク１内で該電磁開閉弁３の動作にて開閉動作する弁流通路５を有した弁座４から洗浄水タンク１の外部に出るまでの送水流路７と、該送水流路７（送水筒８）の上端部分に形成されたバイパス入口14から同洗浄水タンク１の外部に出るまでのバイパス流路13と、を備えていることになる。この場合、送水流路７とバイパス流路13とは一体共用化されており、該バイパス流路13が電磁開閉弁３の動作に関係なく常に開状態となる。
【００３５】
そして、図１５に示すように、洗浄動作時に短時間で強／弱（流量の大／小）を制御するときには、電磁開閉弁３がＯＮ／ＯＦＦ制御される。このとき、電磁開閉弁３がＯＦＦ（開）状態であると、図３、４に示されるように、弁流通路５からの送水流路７とバイパス入口14からのバイパス流路13の両水路に洗浄水が流れて、強（洗浄水量大）の洗浄状態となる。又、電磁開閉弁３がＯＮ（閉）状態であると、図５、６に示されるように、バイパス入口14からのバイパス流路13にのみ洗浄水が流れて、弱（洗浄水量小）の洗浄状態となる。
【００３６】
このような電磁開閉弁３のＯＮ／ＯＦＦに際しては、次のように動作するものである。電圧が印加されるとプランジャー25が摺動ガイド26に沿って作動し、弁本体６の弁シートが弁座４の弁流通路５を閉じて、電磁開閉弁３はＯＮ（閉）状態となる。又、電圧が除去されるとスプリング27の復元力によってプランジャー25が復帰し、弁本体６の弁シートが弁座４から離れて弁流通路５が開き、電磁開閉弁３はＯＦＦ（開）状態となる。この場合、ＯＮ／ＯＦＦの時間は 0.1〜2 秒であり、特に、電磁開閉弁３が電磁弁であることから、 0.1秒という早いＯＮ／ＯＦＦが実現される。
【００３７】
又、上記のような電磁開閉弁３のＯＮ／ＯＦＦ動作や、給水電磁弁18、シーズヒータ21、流量切替機構22等のＯＮ／ＯＦＦは、制御手段28によって自動制御されるものである。なお、図９は、該実施形態の局部洗浄装置の全体構造を詳細に示す断面図であり、図１０は、同局部洗浄装置の全体構造を詳細に示す切欠断面図であり、図１０において、29は脱臭装置である。又、図１において、30は防音シート、31は突起、32はコイル端子、33はＯリングである。ここで、プランジャー25の上下両端に配設された防音シート30は、同プランジャー25が摺動ガイド26の内面やその反対側の磁極部面に当接する際の衝撃を吸収し、その際、同防音シート30が対向面に密着することを突起31が防止して、電磁開閉弁３の作動時における作業音は効果的に低減される。
【００３８】
又、図７は、電磁開閉弁３の作動速さ（強／弱の切り替え速さ）と洗浄力（残存率）との関係を示している。ここでは、作動速さの早い方（ＯＮ／ＯＦＦ時間が 0.2／0.2 秒）が、作動速さの遅い方（ＯＮ／ＯＦＦ時間が 1.0／1.0 秒）よりも、残存率が小さくなっている（洗浄力が高まっている）ことから、洗浄時間を短くできることが理解される。又、図８は、電磁開閉弁３の開閉動作と洗浄ノズル２の先端における強／弱変化及び流路内圧の変化との関係を、バイパス流路13を設けた場合（Ａ）と設けない場合（Ｂ）との比較でもって示している。ここでは、バイパス流路13を設けた場合（Ａ）の方が設けない場合（Ｂ）よりも、洗浄ノズル２の先端における強／弱の変化が早くて、流路内部での圧力変化も小さいことが理解される。
【００３９】
したがって、該実施形態の局部洗浄装置においては、電磁開閉弁３を構成する弁座４及び弁本体６が洗浄水タンク１内に収容され、該収容される部分のハウジングとして同洗浄水タンク１が共用されることになって、コンパクトに納まると共に水密性も確保され、低コスト化を図ることができている。しかも、洗浄水タンク１の出口部分に設けられる弁座４の弁流通路５と同洗浄水タンク１の出口流通路とが、洗浄ノズル２への送水流路７として一体共用化されているため、配管接続が簡略化されて組立性が良好となり、流路が全体として短くなって、電磁開閉弁３の動作時に生じる過渡的な圧力上昇が低減され、長寿命化が図られると共に、洗浄ノズル２の先端における強／弱切替の応答性も向上されている。
【００４０】
又、該実施形態の局部洗浄装置においては、洗浄水タンク１内に立設される送水筒８の上端部に弁座４が設けられて同送水筒８が送水流路７となるため、該送水流路７内を洗浄水は略直線的に流下することになり、この部分を経由して洗浄ノズル２へと至る流路が短くなって、同洗浄ノズル２の先端における強／弱切替の応答性がより向上されている。しかも、この場合、電磁開閉弁３の作動方向が上下方向でその動作方向が上から下となっているため、該電磁開閉弁３は重力の補助を受けて速く動作し、同電磁開閉弁３のＯＮ／ＯＦＦ時間のより短縮化（短い周期での強／弱洗浄）を図ることができ、洗浄ノズル２の先端における強／弱切替の応答性もより向上されている。
【００４１】
又、該実施形態の局部洗浄装置においては、弁本体６を動作させるコイル９及び鉄心10等の電磁部品が洗浄水タンク１の外部に位置するため、これ等電磁部品の絶縁性や耐食性を確保することができ、長期使用にあっても安定した性能が保持される。しかも、この場合、電磁開閉弁３が洗浄水タンク１に形成された取付用開口部11に外側から取り付けられるようになっているため、該取付用開口部11内に弁本体６を外側から挿入し、コイル９及び鉄心10等の電磁部品は外側に残して、同電磁開閉弁３をその一部分だけを差し込むように取り付けて簡単に組み立てることができる。更に、図１１に示す如く、電磁開閉弁３が取り付けられない施工状態で、取付用開口部11にカバー板12を取り付けてこれを閉塞することができるため、該施工状態になる商品と、上記のように電磁開閉弁３が取り付けられた施工状態となる商品とで、すなわち、機能別商品間で洗浄水タンク１を共用化することができる。
【００４２】
又、該実施形態の局部洗浄装置においては、電磁開閉弁３の動作にて急激に洗浄水量を可変制御するとき、図３、４に示すように、電磁開閉弁３が動作して閉状態となっても、バイパス流路13を通じ洗浄水タンク１から洗浄ノズル２へと送水されて洗浄水量が全くゼロにはならないため、該動作時に生じる過渡的な圧力上昇が確実に吸収されて抑えられ、同電磁開閉弁３や洗浄水タンク１の内圧上昇が低減される。更に、この場合、洗浄水タンク１内に連通するバイパス入口14を送水流路７の途中に設けることで、該送水流路７とバイパス流路13とが一体共用化されているため、同洗浄水タンク１にバイパス口14を形成してその外部にバイパス流路13を別途に配管接続する必要がなく、部品点数、組立工数の削減が図られている。しかも、バイパス流路13が短くなって、電磁開閉弁３のＯＮ／ＯＦＦ時間のより短縮化（短い周期での強／弱洗浄）が図られ、洗浄ノズル２の先端における強／弱切替の応答性もより向上されて、洗浄時間を短くすることが可能となっている。
【００４３】
図１２は、本発明の請求項１、３〜７に対応する別の実施形態を示し、該実施形態の局部洗浄装置においては、バイパス流路13が送水流路７とは別流路として、洗浄水タンク１の外壁に沿って上下方向に形成されている。なお、それ以外は上記実施形態と同様に構成されており、請求項２に係る以外の作用効果が上記実施形態におけると同様に奏される。
【００４４】
【発明の効果】
上述の如く、本発明の請求項１、２記載の局部洗浄装置においては、電磁開閉弁のハウジングとして洗浄水タンクを共用することができ、水密性も確保されて低コスト化が図られ、配管接続が簡略化されて組立性が良好となり、流路が短くなることで、圧力上昇が低減されて長寿命化が図られると共に、強／弱切替の応答性も向上される。
【００４５】
又、本発明の請求項１記載の局部洗浄装置においては、特に、送水流路内を洗浄水が略直線的に流下することになって洗浄ノズルへの流路は短くなり、該洗浄ノズルの先端における強／弱切替の応答性がより向上される。
又、本発明の請求項２記載の局部洗浄装置においては、特に、電磁開閉弁が閉状態となってもバイパス流路を通じ送水されることで、圧力上昇が確実に抑えられ、同電磁開閉弁や洗浄水タンクの内圧上昇も低減される。
更に、本発明の請求項２記載の局部洗浄装置においては、特に、バイパス流路を別途に配管接続する必要がなく、部品点数、組立工数の削減が図られ、バイパス流路が短くなることで、短い周期での強／弱洗浄が図られ、強／弱切替の応答性もより向上されて、洗浄時間を短くすることができる。
【００４６】
又、本発明の請求項３記載の局部洗浄装置においては、特に、電磁開閉弁が重力により速く動作することで、短い周期での強／弱洗浄が図られ、強／弱切替の応答性もより向上される。
【００４７】
又、本発明の請求項４記載の局部洗浄装置においては、特に、電磁部品が洗浄水タンクの外部に位置してその絶縁性や耐食性が確保され、長期使用にあっても安定した性能が保持される。
【００４８】
又、本発明の請求項５記載の局部洗浄装置においては、特に、電磁開閉弁を洗浄水タンクに形成された取付用開口部に外側から差し込むように取り付けて、簡単に組み立てることができる。
【００４９】
又、本発明の請求項６記載の局部洗浄装置においては、特に、電磁開閉弁が取り付けられる商品、取り付けられない商品の機能別商品間で、洗浄水タンクを共用化することができる。
【００５０】
又、本発明の請求項７記載の局部洗浄装置においては、特に、電磁開閉弁が閉状態となってもバイパス流路を通じ送水されることで、圧力上昇が確実に抑えられ、同電磁開閉弁や洗浄水タンクの内圧上昇も低減される。
【図面の簡単な説明】
【図１】本発明の一実施形態である局部洗浄装置を示す要部断面図。
【図２】同局部洗浄装置の流路全体を示す概略断面図。
【図３】同局部洗浄装置において電磁開閉弁開状態での流路を示す要部断面図。
【図４】同局部洗浄装置において電磁開閉弁開状態での流路全体を示す概略構成図。
【図５】同局部洗浄装置において電磁開閉弁閉状態での流路を示す要部断面図。
【図６】同局部洗浄装置において電磁開閉弁閉状態での流路全体を示す概略構成図。
【図７】強／弱（ＯＮ／ＯＦＦ）の切り替え速さと洗浄力（残存率）との関係を示すグラフ。
【図８】電磁開閉弁の開閉動作と洗浄ノズル先端での強／弱変化及び流路内圧の変化との関係を、バイパス流路を設けた場合（Ａ）と設けない場合（Ｂ）とで比較して示したグラフ。
【図９】同局部洗浄装置の全体構造を示す断面図。
【図１０】同局部洗浄装置の全体構造を示す切欠断面図。
【図１１】同局部洗浄装置において電磁開閉弁が取り付けられない施工状態を示す要部断面図。
【図１２】別の実施形態である局部洗浄装置を示す要部断面図。
【図１３】従来例である局部洗浄装置において電磁開閉弁開状態での流路全体を示す概略構成図。
【図１４】同局部洗浄装置において電磁開閉弁閉状態での流路全体を示す概略構成図。
【図１５】給水電磁弁及び開閉電磁弁の開閉動作と洗浄水量の強／弱変化との関係を示す概略シーケンスチャート。
【符号の説明】
１洗浄水タンク
２洗浄ノズル
2a 肛門用の洗浄ノズル
2b ビデ用の洗浄ノズル
３電磁開閉弁
４弁座
５弁流通路
６弁本体
７送水流路
８送水筒
９コイル
10 鉄心
11 取付用開口部
12 カバー板
13 バイパス流路
14 バイパス入口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a local cleaning device that variably adjusts the amount of cleaning water and performs local body cleaning such as anal cleaning and bidet cleaning.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known a local cleaning apparatus that performs human body local cleaning such as anal cleaning and bidet cleaning by variably adjusting the amount of cleaning water. For example, a configuration as shown in FIGS.
[0003]
In the local cleaning device, through a branch faucet 15 from the water supply source, through a strainer 16 that removes large dust and the like, and a constant flow valve 17 that restricts the amount of water flowing into the cleaning device body to a substantially constant level, during a cleaning operation A pipe is connected to a water supply solenoid valve 18 which is opened to supply cleaning water to the main body of the cleaning device.
[0004]
The water supply electromagnetic valve 18 is connected to the cleaning water tank 1 via a pressure relief valve 19 that operates when the pressure after the water supply electromagnetic valve 18 increases and protects the inside of the cleaning apparatus main body. In the washing water tank 1, the temperature is detected by a thermistor or the like, and power control to the sheathed heater is performed (by the control means 28), and the washing water is heated and kept warm so that it becomes a moderately warm water.
[0005]
From the outlet of the washing water tank 1, a branch pipe is connected to a main water channel 34 and a branch water channel 35 through which a certain amount of washing water flows. The main water channel 34 is provided with an electromagnetic on-off valve 3, which is the same downstream. The main water channel 34 and the branch water channel 35 are joined together again. The joined pipes variably adjust the flow rate of the cleaning water and pass through a flow rate switching mechanism 22 that changes and adjusts the cleaning nozzle 2 used corresponding to each cleaning site of anal cleaning and bidet cleaning. Pipes are connected to the respective cleaning nozzles 2, and anal cleaning or bidet cleaning is selectively performed by the cleaning water ejected from any of the cleaning nozzles 2.
[0006]
In this case, as shown in FIG. 15, the water supply electromagnetic valve 18 is opened during the cleaning operation, and the cleaning water is ejected from the cleaning nozzle 2 using the pressure of the water source. The flow rate switching mechanism 22 is a mechanism for changing the cleaning part by adjusting the desired amount of cleaning water and switching the cleaning nozzle 2 used for anal cleaning or bidet cleaning. The pressure relief valve 19 opens and discharges water to the outside when the pressure exceeds the predetermined value so that the internal pressure after the constant flow valve 17 does not exceed the predetermined value.
[0007]
As shown in FIG. 15, when the strength / weakness (large / small flow rate) is controlled in a short time during the cleaning operation, the electromagnetic on-off valve 3 is ON / OFF controlled. At this time, if the electromagnetic on-off valve 3 is in an OFF (open) state, as shown in FIG. 13, washing water flows into both the main water channel 34 and the branch water channel 35 having the electromagnetic on-off valve 3, and strong ( The cleaning state is large). Further, when the electromagnetic on-off valve 3 is in the ON (closed) state, as shown in FIG. 14, the washing water flows only into the branch water channel 35 and the washing state is weak (the washing water amount is small). In this case, the ON / OFF time is 0.1 to 2 seconds. In particular, since the electromagnetic on-off valve 3 is an electromagnetic valve, ON / OFF as fast as 0.1 seconds can be realized.
[0008]
[Problems to be solved by the invention]
However, in the above prior art, the main water channel 34 having the electromagnetic on-off valve 3 and the branch water channel 35 are connected to the outside of the cleaning tank 1 and separately from the cleaning tank 1, so that the following problems are caused. was there.
[0009]
That is, it is necessary to provide sufficient water tightness between the outlet of the wash water tank 1 and the electromagnetic on-off valve 3 and on the housing itself of the electromagnetic on-off valve 3, and a large piping space is required. There was a problem that led to an increase in size. Further, in this case, the flow path becomes long, and the transient pressure rise that occurs during the operation of the electromagnetic on-off valve 3 is not absorbed in a short time, so that the inside of the electromagnetic on-off valve 3 or the inside of the washing water tank 1 is not absorbed. There was a problem that a large pressure was generated, and stress was repeatedly applied to the inside of the electromagnetic on-off valve 3 and the washing water tank 1 to cause deterioration of the service life. In addition, the longer flow path complicates the work of connecting and assembling the main water channel 34 and the branch water channel 35 having the electromagnetic on-off valve 3, etc., and the responsiveness of the strong / weak switching at the tip of the cleaning nozzle 2 is poor. There was a problem of becoming.
[0010]
The present invention was invented in order to solve the above-mentioned problems in the prior art, and the problem is that the structure is simple and fits in a compact size, and the assembly is good and the cost is reduced, thereby ensuring water tightness. Provided is a local cleaning device that does not have to worry about water leakage or the like, has a reduced transient pressure rise, extends its service life, and improves the response of strong / weak switching at the tip of the cleaning nozzle. That is.
[0011]
[Means for Solving the Problems]
  Claim 1 of the present invention2The local cleaning device described includes an electromagnetic on-off valve that controls the flow rate from the cleaning water tank to the cleaning nozzle, and the electromagnetic on-off valve has a valve seat and a valve body that opens and closes the valve flow passage of the valve seat.YouA local cleaning device configured as a device, wherein the valve seat and the valve main body are accommodated in a cleaning water tank, and the valve seat is provided at an outlet portion of the cleaning water tank. The outlet flow passage of the washing water tank is integrally used as a water supply passage to the washing nozzle.
[0012]
Therefore, in this case, since the valve seat and the valve main body constituting the electromagnetic on-off valve are accommodated in the washing water tank, the washing water tank can be shared as a housing of the accommodated portion, and can be compactly accommodated. Watertightness is also ensured and cost reduction is achieved. In addition, the valve flow passage of the valve seat provided at the outlet portion of the washing water tank and the outlet flow passage of the washing water tank are integrated as a water supply passage to the washing nozzle, so that the piping connection is simplified. Assemblability is improved, the flow path is shortened as a whole, the transient pressure rise that occurs during operation of the solenoid valve is reduced, the service life is extended, and the strong / weak switching at the tip of the cleaning nozzle Responsiveness is also improved.
[0013]
  or,Claims of the invention1The local cleaning device described is, WashingA water pipe for supplying water from the water purification tank to the washing nozzle is erected in the washing water tank, a valve seat is provided at the upper end of the water pipe, and a water supply passage is formed by the water pipe. And
[0014]
  Therefore, in this case, in particular, since a valve seat is provided at the upper end portion of the water supply pipe standing in the wash water tank and the water supply pipe becomes a water supply flow path, the wash water is substantially straight in the water supply flow path. Accordingly, the flow path leading to the cleaning nozzle via this portion is shortened, and the response of strong / weak switching at the tip of the cleaning nozzle is further improved.
According to a second aspect of the present invention, there is provided a local cleaning apparatus comprising a bypass passage for supplying water from a cleaning water tank to a cleaning nozzle without passing through an electromagnetic on-off valve.
Therefore, especially in this case, even if the electromagnetic on-off valve is operated and closed, water is fed from the washing water tank to the washing nozzle through the bypass flow path, so that a transient pressure rise that occurs during the operation is reliably ensured. It is absorbed and suppressed, and an increase in internal pressure of the electromagnetic on-off valve and washing water tank is reduced.
Furthermore, in the local cleaning device according to claim 2 of the present invention, a bypass inlet communicating with the cleaning water tank is provided in the middle of the water supply flow path, and the water supply flow path and the bypass flow path are integrally shared. Features.
Therefore, in this case, in particular, by providing a bypass inlet communicating with the inside of the washing water tank in the middle of the water feeding passage, the water feeding passage and the bypass passage can be used as a single unit. There is no need to form a port and separately connect a bypass flow path to the outside, thereby reducing the number of parts and the number of assembly steps. Moreover, the bypass flow path is shortened, and the ON / OFF time of the electromagnetic on-off valve is further shortened (strong / weak cleaning in a short cycle), and the response of the strong / weak switching at the tip of the cleaning nozzle is also improved. As a result, the cleaning time can be shortened.
[0015]
The local cleaning device according to claim 3 of the present invention is the local cleaning device according to claim 1 or 2, wherein the electromagnetic on-off valve is operated in the vertical direction and the operation direction is from top to bottom. An on-off valve is attached to the washing water tank.
[0016]
Therefore, in this case, in particular, since the operation direction of the electromagnetic on-off valve is vertical and the operation direction is from top to bottom, the electromagnetic on-off valve operates fast with the assistance of gravity, and the electromagnetic on-off valve is turned on / off. The OFF time can be further shortened (strong / weak cleaning in a short cycle), and the responsiveness of strong / weak switching at the tip of the cleaning nozzle is further improved.
[0017]
The local cleaning device according to claim 4 of the present invention is the local cleaning device according to any one of claims 1 to 3, wherein an electromagnetic component such as a coil for operating the valve body and an iron core is provided outside the cleaning water tank. An electromagnetic on-off valve is attached to the washing water tank so as to be positioned at the position.
[0018]
Therefore, especially in this case, since the electromagnetic parts such as the coil for operating the valve main body and the iron core are located outside the washing water tank, the insulation and corrosion resistance of these electromagnetic parts can be ensured, and they are suitable for long-term use. However, stable performance is maintained.
[0019]
The local cleaning device according to claim 5 of the present invention is the local cleaning device according to claim 4, wherein an attachment opening is formed in the cleaning water tank, and an electromagnetic on-off valve is attached to the attachment opening from the outside. It is characterized by that.
[0020]
Therefore, in this case, in particular, since the electromagnetic on-off valve is attached from the outside to the mounting opening formed in the washing water tank, the valve body is inserted into the mounting opening from the outside, and the coil and Electromagnetic parts such as iron cores can be easily assembled by leaving the electromagnetic open / close valve so that only a part of the electromagnetic open / close valve is inserted while leaving the electromagnetic parts outside.
[0021]
The local cleaning device according to claim 6 of the present invention is the local cleaning device according to claim 5, wherein the cover plate is attached to the mounting opening and closes it in a construction state where the electromagnetic on-off valve is not attached. It is characterized by having.
[0022]
Therefore, in this case, in particular, in a construction state where the electromagnetic on-off valve cannot be attached, a cover plate can be attached to the mounting opening to close it, so that the product in the construction state and the electromagnetic on-off valve are attached. In other words, it is possible to share the washing water tank among the products in the construction state, that is, between the functional products.
[0023]
  The local cleaning apparatus according to claim 7 of the present invention is the above-mentioned claim 1.3In the local cleaning apparatus according to any one of 6 to 6, a bypass flow path for supplying water from the cleaning water tank to the cleaning nozzle without passing through the electromagnetic on-off valve is provided.
[0024]
Therefore, especially in this case, even if the electromagnetic on-off valve is operated and closed, water is fed from the washing water tank to the washing nozzle through the bypass flow path, so that a transient pressure rise that occurs during the operation is reliably ensured. It is absorbed and suppressed, and an increase in internal pressure of the electromagnetic on-off valve and washing water tank is reduced.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
  1 to 6 show claims 1 to 6 of the present invention.7An embodiment corresponding to all the embodiments is shown, and the local cleaning device of the embodiment is an electromagnetic opening and closing that controls the flow rate from the cleaning water tank 1 to the cleaning nozzle 2 (anal cleaning nozzle 2a, bidet cleaning nozzle 2b). The valve 3 includes a valve seat 4 and a valve body 6 that opens and closes the valve flow passage 5 of the valve seat 4 and is configured to be closed when turned ON. The valve seat 4 and the valve body 6 are accommodated in the washing water tank 1 and the valve seat 4 is provided at the outlet of the washing water tank 1 so that the valve flow passage 5 of the valve seat 4 and the valve flow passage 5 are washed. The outlet flow passage of the water tank 1 is integrally used as a water supply passage 7 to the cleaning nozzle 2.
[0028]
In this case, a water supply tube 8 for supplying water from the cleaning water tank 1 to the cleaning nozzle 2 is erected in the cleaning water tank 1 and a valve seat 4 is provided at the upper end of the water supply tube 8. The water supply flow path 7 is formed. Further, the electromagnetic on-off valve 3 is attached to the washing water tank 1 so that the operating direction of the electromagnetic on-off valve 3 is up and down and the operation direction is from top to bottom. Here, the electromagnetic on-off valve 3 is attached to the washing water tank 1 so that the electromagnetic components such as the coil 9 that operates the valve body 6 and the iron core 10 are located outside the washing water tank 1. An attachment opening 11 is formed in the washing water tank 1, and the electromagnetic opening / closing valve 3 is attached to the attachment opening 11 from the outside.
[0029]
Further, as shown in FIG. 11, a cover plate 12 is provided that is attached to the attachment opening 11 and closes it in a construction state where the electromagnetic on-off valve 3 is not attached. Further, a bypass flow path 13 is provided for supplying water from the washing water tank 1 to the washing nozzle 2 without going through the electromagnetic on-off valve 3. Here, a bypass inlet 14 communicating with the inside of the washing water tank 1 is provided in the middle of the water supply passage 7 (water supply cylinder 8), and the water supply passage 7 and the bypass passage 13 are integrally shared.
[0030]
In the local cleaning apparatus of this embodiment, as shown in FIGS. 2, 4, and 6, the amount of water flowing into the main body of the cleaning apparatus and the strainer 16 that removes large debris from the water source via the branch tap 15 is substantially reduced. Via a constant flow valve 17 that restricts to a certain level, a pipe is connected to a water supply electromagnetic valve 18 that is opened to supply cleaning water to the main body of the cleaning apparatus during a cleaning operation.
[0031]
From the water supply solenoid valve 18, the pressure of the water supply solenoid valve 18 is increased and the pressure is increased via a pressure relief valve 19 (pressure of about 1.5 kgf / cm2) that activates and protects the inside of the cleaning device main body. Connected to the pipe. In the washing water tank 1, the temperature is detected by the thermistor 20, power control to the sheathed heater 21 (by the control means 28) is performed, and the washing water is heated and kept warm so that it becomes a moderately warm water. .
[0032]
The electromagnetic on-off valve 3 attached to the upper wall side end of the washing water tank 1 is connected to the flow rate switching mechanism 22 via the water supply channel 7 (water supply cylinder 8) or the bypass channel 13. Yes. In the flow rate switching mechanism 22, the flow rate of the cleaning water is variably adjusted, and the cleaning nozzles 2a and 2b used corresponding to each cleaning site of anal cleaning and bidet cleaning are changed and adjusted. The cleaning nozzles 2a and 2b are connected to the flow rate switching mechanism 22, and anus cleaning or bidet cleaning is selectively performed by cleaning water ejected from any of the cleaning nozzles 2a and 2b. In FIG. 2, 23 is a water supply hose and 24 is a float switch.
[0033]
In this case, as shown in FIG. 15, the water supply electromagnetic valve 18 is opened during the cleaning operation, and the cleaning water is ejected from the cleaning nozzle 2 using the pressure of the water source. The flow rate switching mechanism 22 is a mechanism for changing the cleaning part by adjusting the desired amount of cleaning water and switching the cleaning nozzle 2 used for anal cleaning or bidet cleaning. The pressure relief valve 19 has a predetermined value so that the internal pressure after the constant flow valve 17 (pressure in the flow path of the cleaning water tank 1, the electromagnetic on-off valve 3, the cleaning nozzle 2, etc.) does not exceed a predetermined value. When it reaches the above pressure, it opens and discharges water to the outside.
[0034]
In such a configuration, the electromagnetic opening / closing valve 3 itself goes out of the washing water tank 1 from the valve seat 4 having the valve flow passage 5 that opens and closes by the operation of the electromagnetic opening / closing valve 3 in the washing water tank 1. And a bypass channel 13 from the bypass inlet 14 formed at the upper end portion of the water channel 7 (water cylinder 8) to the outside of the washing water tank 1. It will be. In this case, the water supply flow path 7 and the bypass flow path 13 are integrally shared, and the bypass flow path 13 is always open regardless of the operation of the electromagnetic on-off valve 3.
[0035]
As shown in FIG. 15, when the strength / weakness (large / small flow rate) is controlled in a short time during the cleaning operation, the electromagnetic on-off valve 3 is ON / OFF controlled. At this time, if the electromagnetic on-off valve 3 is in the OFF (open) state, as shown in FIGS. 3 and 4, both water passages of the water supply passage 7 from the valve flow passage 5 and the bypass passage 13 from the bypass inlet 14. The washing water flows into the water and the washing state becomes strong (a large amount of washing water). Further, when the electromagnetic on-off valve 3 is in the ON (closed) state, as shown in FIGS. 5 and 6, the wash water flows only to the bypass flow path 13 from the bypass inlet 14 and is weak (the wash water amount is small). It becomes a washing state.
[0036]
When such an electromagnetic on-off valve 3 is turned on / off, it operates as follows. When a voltage is applied, the plunger 25 operates along the sliding guide 26, the valve seat of the valve body 6 closes the valve flow passage 5 of the valve seat 4, and the electromagnetic on-off valve 3 is turned on (closed). Become. When the voltage is removed, the plunger 25 is restored by the restoring force of the spring 27, the valve seat of the valve body 6 is separated from the valve seat 4, the valve flow passage 5 is opened, and the electromagnetic on-off valve 3 is turned off (open). It becomes a state. In this case, the ON / OFF time is 0.1 to 2 seconds. In particular, since the electromagnetic on-off valve 3 is an electromagnetic valve, ON / OFF as fast as 0.1 seconds is realized.
[0037]
Further, the ON / OFF operation of the electromagnetic on-off valve 3 as described above and the ON / OFF of the water supply electromagnetic valve 18, the sheathed heater 21, the flow rate switching mechanism 22, and the like are automatically controlled by the control means 28. 9 is a cross-sectional view showing in detail the overall structure of the local cleaning device of the embodiment, FIG. 10 is a cut-out cross-sectional view showing the entire structure of the local cleaning device in detail, and in FIG. 29 is a deodorizing device. In FIG. 1, 30 is a soundproof sheet, 31 is a protrusion, 32 is a coil terminal, and 33 is an O-ring. Here, the soundproof sheets 30 disposed at the upper and lower ends of the plunger 25 absorb the impact when the plunger 25 abuts against the inner surface of the sliding guide 26 and the magnetic pole part surface on the opposite side, The protrusion 31 prevents the soundproof sheet 30 from coming into close contact with the opposing surface, and the working sound during the operation of the electromagnetic on-off valve 3 is effectively reduced.
[0038]
FIG. 7 shows the relationship between the operating speed (strong / weak switching speed) of the electromagnetic on-off valve 3 and the cleaning power (residual rate). Here, the remaining rate is smaller for the faster operating speed (ON / OFF time 0.2 / 0.2 seconds) than for the slower operating speed (ON / OFF time 1.0 / 1.0 seconds) ( It is understood that the cleaning time can be shortened from the fact that the cleaning power is increasing. FIG. 8 shows the relationship between the opening / closing operation of the electromagnetic opening / closing valve 3 and the strong / weak change at the tip of the cleaning nozzle 2 and the change in the flow path pressure when the bypass flow path 13 is provided (A) and not. This is shown in comparison with (B). Here, when the bypass channel 13 is provided (A), the change in strength / weakness at the tip of the cleaning nozzle 2 is faster and the pressure change within the channel is smaller than when (B) is not provided. It is understood.
[0039]
Therefore, in the local cleaning apparatus of this embodiment, the valve seat 4 and the valve body 6 constituting the electromagnetic on-off valve 3 are accommodated in the flush water tank 1, and the flush water tank 1 is used as a housing of the accommodated portion. As a result of being shared, it is compact and secures water tightness, thus reducing costs. Moreover, the valve flow passage 5 of the valve seat 4 provided at the outlet portion of the washing water tank 1 and the outlet flow passage of the washing water tank 1 are integrally used as a water supply passage 7 to the washing nozzle 2. The pipe connection is simplified, the assemblability is improved, the flow path is shortened as a whole, the transient pressure rise that occurs during operation of the electromagnetic on-off valve 3 is reduced, the life is extended, and the cleaning nozzle The response of strong / weak switching at the tip of 2 is also improved.
[0040]
Further, in the local cleaning device of the embodiment, the valve seat 4 is provided at the upper end portion of the water supply tube 8 erected in the cleaning water tank 1 and the water supply tube 8 becomes the water supply flow path 7. The washing water flows down almost linearly in the water supply passage 7, and the passage to the washing nozzle 2 via this portion is shortened, and the strong / weak switching at the tip of the washing nozzle 2 is performed. Responsiveness has been improved. Moreover, in this case, since the operating direction of the electromagnetic on-off valve 3 is the vertical direction and the operation direction is from top to bottom, the electromagnetic on-off valve 3 operates fast with the assistance of gravity, and the electromagnetic on-off valve 3 The ON / OFF time of the cleaning nozzle 2 can be further shortened (strong / weak cleaning in a short cycle), and the response of the strong / weak switching at the tip of the cleaning nozzle 2 is further improved.
[0041]
Moreover, in the local cleaning apparatus of this embodiment, since the electromagnetic components such as the coil 9 and the iron core 10 for operating the valve body 6 are located outside the cleaning water tank 1, the insulation and corrosion resistance of these electromagnetic components are ensured. And stable performance is maintained even after long-term use. Moreover, in this case, since the electromagnetic on-off valve 3 is attached to the mounting opening 11 formed in the washing water tank 1 from the outside, the valve body 6 is inserted into the mounting opening 11 from the outside. However, the electromagnetic components such as the coil 9 and the iron core 10 are left outside, and the electromagnetic on-off valve 3 can be attached by inserting only a part thereof and can be assembled easily. Furthermore, as shown in FIG. 11, in the construction state in which the electromagnetic on-off valve 3 cannot be attached, the cover plate 12 can be attached to the attachment opening 11 and closed, so that the product in the construction state, As described above, the washing water tank 1 can be shared between the product in the construction state in which the electromagnetic opening / closing valve 3 is attached, that is, between the functional products.
[0042]
In the local cleaning apparatus of the embodiment, when the amount of cleaning water is suddenly variably controlled by the operation of the electromagnetic on-off valve 3, the electromagnetic on-off valve 3 operates to be in the closed state as shown in FIGS. Even so, since the amount of the washing water is not zero at all because the water is fed from the washing water tank 1 to the washing nozzle 2 through the bypass channel 13, the transient pressure rise generated during the operation is surely absorbed and suppressed, The increase in internal pressure of the electromagnetic on-off valve 3 and the washing water tank 1 is reduced. Furthermore, in this case, the bypass inlet 14 communicating with the cleaning water tank 1 is provided in the middle of the water supply flow path 7 so that the water supply flow path 7 and the bypass flow path 13 are integrally used. There is no need to form a bypass port 14 in the water tank 1 and separately connect the bypass flow path 13 to the outside of the water tank 1, thereby reducing the number of parts and assembly man-hours. In addition, the bypass flow path 13 is shortened, and the ON / OFF time of the electromagnetic on-off valve 3 is further shortened (strong / weak cleaning in a short cycle), and the response of strong / weak switching at the tip of the cleaning nozzle 2 is achieved. Further, the cleaning time can be shortened.
[0043]
  FIG. 12 shows claim 1 of the present invention.3In the local cleaning apparatus according to this embodiment, the bypass flow path 13 is a flow path different from the water supply flow path 7 and extends vertically along the outer wall of the wash water tank 1. Is formed. Other than that, the configuration is the same as in the above embodiment, and the claims2The effects other than those according to the above are exhibited as in the above embodiment.
[0044]
【The invention's effect】
  As stated above, claim 1 of the present invention.2In the described local cleaning device, a cleaning water tank can be shared as the housing of the electromagnetic on-off valve, water tightness is ensured, cost reduction is achieved, piping connection is simplified, and assembly is good, By shortening the flow path, the pressure rise is reduced, the life is extended, and the response of strong / weak switching is also improved.
[0045]
  Further, the claims of the present invention1In the described local cleaning apparatus, in particular, the cleaning water flows substantially linearly in the water supply flow path, the flow path to the cleaning nozzle is shortened, and the response of strong / weak switching at the tip of the cleaning nozzle More improved.
Further, in the local cleaning device according to claim 2 of the present invention, in particular, even when the electromagnetic on-off valve is in a closed state, water is supplied through the bypass flow path, so that an increase in pressure is reliably suppressed. In addition, the rise in internal pressure of the washing water tank is also reduced.
Furthermore, in the local cleaning device according to claim 2 of the present invention, in particular, there is no need to separately connect the bypass flow path, the number of parts and the number of assembly steps can be reduced, and the bypass flow path can be shortened. In addition, strong / weak cleaning in a short cycle is achieved, the response of switching between strong / weak switching is further improved, and the cleaning time can be shortened.
[0046]
In the local cleaning device according to claim 3 of the present invention, in particular, the electromagnetic on-off valve operates fast due to gravity, so that strong / weak cleaning can be achieved in a short cycle, and responsiveness of strong / weak switching is also achieved. More improved.
[0047]
Further, in the local cleaning apparatus according to claim 4 of the present invention, in particular, the electromagnetic parts are located outside the cleaning water tank so that the insulation and corrosion resistance are ensured, and the stable performance is maintained even after long-term use. Is done.
[0048]
In the local cleaning device according to the fifth aspect of the present invention, in particular, the electromagnetic on-off valve can be attached so as to be inserted from the outside into the mounting opening formed in the cleaning water tank, and can be easily assembled.
[0049]
Further, in the local cleaning apparatus according to claim 6 of the present invention, in particular, the cleaning water tank can be shared between the products to which the electromagnetic on-off valve is attached and the products according to the functions of the products to which the solenoid on / off valve is not attached.
[0050]
Further, in the local cleaning device according to claim 7 of the present invention, in particular, even when the electromagnetic on-off valve is in a closed state, water is fed through the bypass flow path, so that an increase in pressure can be reliably suppressed, and the electromagnetic on-off valve In addition, the rise in internal pressure of the washing water tank is also reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a main part of a local cleaning apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic sectional view showing the entire flow path of the local cleaning apparatus.
FIG. 3 is a cross-sectional view of an essential part showing a flow path when the electromagnetic opening / closing valve is open in the local cleaning device.
FIG. 4 is a schematic configuration diagram showing the entire flow path when the electromagnetic opening / closing valve is open in the local cleaning device.
FIG. 5 is a cross-sectional view of an essential part showing a flow path when the electromagnetic opening / closing valve is closed in the local cleaning device.
FIG. 6 is a schematic configuration diagram showing the entire flow path when the electromagnetic on-off valve is closed in the local cleaning device.
FIG. 7 is a graph showing the relationship between strong / weak (ON / OFF) switching speed and cleaning power (residual rate).
FIG. 8 shows the relationship between the opening / closing operation of the electromagnetic opening / closing valve, the strong / weak change at the tip of the cleaning nozzle, and the change in the flow path internal pressure when the bypass flow path is provided (A) and when the bypass flow path is not provided (B). The graph shown in comparison.
FIG. 9 is a sectional view showing the overall structure of the local cleaning apparatus.
FIG. 10 is a cutaway sectional view showing the overall structure of the local cleaning apparatus.
FIG. 11 is a cross-sectional view of an essential part showing a construction state where an electromagnetic on-off valve is not attached in the local cleaning device.
FIG. 12 is a cross-sectional view of a main part showing a local cleaning apparatus according to another embodiment.
FIG. 13 is a schematic configuration diagram showing the entire flow path when the electromagnetic on-off valve is open in a conventional local cleaning device.
FIG. 14 is a schematic configuration diagram showing the entire flow path when the electromagnetic on-off valve is closed in the local cleaning device.
FIG. 15 is a schematic sequence chart showing the relationship between the opening / closing operation of the water supply solenoid valve and the opening / closing solenoid valve and the strong / weak change in the amount of washing water.
[Explanation of symbols]
1 Washing water tank
2 Cleaning nozzle
2a Anal nozzle
2b Cleaning nozzle for bidet
3 Solenoid valve
4 Valve seat
5 Valve passage
6 Valve body
7 Water supply flow path
8 water bottle
9 Coils
10 Iron core
11 Mounting opening
12 Cover plate
13 Bypass channel
14 Bypass entrance

Claims

An electromagnetic on-off valve that controls the flow rate from the cleaning water tank to the cleaning nozzle and a water supply tube that forms a water supply channel for supplying water from the cleaning water tank to the cleaning nozzle are provided, and the water supply tube is set up in the cleaning water tank. The electromagnetic on-off valve has a valve seat and a valve main body for opening and closing a valve flow passage of the valve seat, and the valve seat and the valve main body are accommodated in the cleaning water tank and the outlet of the cleaning water tank A local cleaning device in which the valve seat is provided at the upper end portion of the water supply cylinder in a part , and the valve flow passage of the valve seat and the outlet flow passage of the cleaning water tank are integrally used as a water supply flow path to the cleaning nozzle .

An electromagnetic on-off valve for controlling the flow rate from the washing water tank to the washing nozzle is provided. The electromagnetic on-off valve has a valve seat and a valve body that opens and closes a valve flow passage of the valve seat, and cleans the valve seat and the valve body. The valve seat is housed in the water tank and provided at the outlet of the washing water tank, and the valve flow passage of the valve seat and the outlet flow passage of the washing water tank are integrated as a water supply passage to the washing nozzle. A bypass inlet communicating with the cleaning water tank is provided in the middle of the water supply flow path, and a bypass flow path for supplying water from the cleaning water tank to the cleaning nozzle without passing through the electromagnetic on-off valve is provided. A local cleaning device in which a road and a bypass flow path are integrated .

The local cleaning device according to claim 1 or 2, wherein the electromagnetic on-off valve is attached to the washing water tank so that the operating direction of the electromagnetic on-off valve is vertical and the operation direction is from top to bottom.

The electromagnetic open / close valve is attached to the washing water tank so that electromagnetic parts such as a coil and an iron core for operating the valve main body are located outside the washing water tank. The local cleaning device described.

5. The local cleaning apparatus according to claim 4, wherein a mounting opening is formed in the cleaning water tank, and an electromagnetic on-off valve is attached to the mounting opening from the outside.

6. The local cleaning apparatus according to claim 5, further comprising a cover plate that is attached to the mounting opening and closes the mounting opening in a construction state where the electromagnetic on-off valve is not attached.

The local cleaning device according to any one of claims 1 to 6 , further comprising a bypass flow path for supplying water from the cleaning water tank to the cleaning nozzle without passing through the electromagnetic on-off valve.