JP4430146B2 - Drain structure of bathtub cleaning device - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、浴槽洗浄中の洗浄水や濯ぎ水を排水する浴槽洗浄装置の排水構造に関するものである。
【０００２】
【従来の技術】
従来から、浴槽内の洗浄や清掃は、洗剤やブラシ等を用いて人手で行うのが一般的であったが、人手による浴槽内の洗浄作業は体力を要し、特に高齢者等には重労働であるため、近年、浴槽内を自動的に洗浄する種々の浴槽洗浄装置が開示されている。
従来の浴槽洗浄装置の一例として、特開平１０−６６６５９号公報（以下、イ号公報という）には、浴槽と、浴槽の底面に凹状に形成された湯溜まり部と、湯溜まり部の底面に形成された排水口及び循環口と、浴槽の側壁に配設された浴槽洗浄器と、浴槽洗浄器に接続された給水管と、給水管に接続された給水部と、循環口に接続された吸水管と、吸水管に接続され、湯溜まり部内の湯等を吸水するポンプと、ポンプと給水管の間に配設された加熱手段と、加熱手段とポンプの間に配設された三方弁と、三方弁に接続された排水管と、を備えた浴槽洗浄装置が開示されている。
イ号公報の浴槽洗浄装置における浴槽の洗浄について、以下説明する。
浴槽内に浴槽洗浄用の洗剤を入れて浴槽洗浄装置を起動すると、給水部から給水管を介して浴槽洗浄器に水又は湯が供給され、浴槽洗浄器から浴槽内に水又は湯が洗浄に必要な所定量供給される。次いで、浴槽内に供給された水又は湯により、浴槽内に入れていた洗剤が溶かされて洗浄水となり、浴槽の底面に形成された湯溜まり部に溜められると、ポンプが運転を開始し、循環口から吸水管を介して洗浄水を吸水し、加熱手段を介して浴槽洗浄器に洗浄水を送り、洗浄水を循環させながら浴槽洗浄器で浴槽内の洗浄が行われる。所定時間洗浄水の循環を繰り返して浴槽内の洗浄を行った後、ポンプが停止し、三方弁が排水管側に切り替えられポンプの運転が開始されて洗浄水が排水される。次いで、給水部から浴槽内の濯ぎに必要な所定量の水が給水管及び浴槽洗浄器を介して浴槽内に供給され、ポンプが運転を開始し、循環口から吸水管を介して湯溜まり部内の水を吸水し、加熱手段を介して浴槽洗浄器に水を送り、水を循環させながら所定時間浴槽内の濯ぎを行った後、ポンプが停止し、三方弁が排水管側に切り替えられポンプの運転が開始されて水が排水される。更に、再度給水部から浴槽内に水が供給されて同様の濯ぎ動作が繰り返し行われ濯ぎが完了すると、三方弁が排水管側に切り替えられ水が排水されて浴槽内の洗浄が終了する。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の浴槽洗浄装置は以下のような課題を有していた。
イ号公報に記載の浴槽洗浄装置では、排水管が加熱手段とポンプの間に配設された三方弁に接続され、洗浄水や濯ぎ水の排水時に、三方弁を排水管側に切り替えて排水管から洗浄水や濯ぎ水を排水しているため、ポンプが空気をかみこんだ時点でポンプの排水能力がなくなり、ポンプと三方弁の間に洗浄水や濯ぎ水の残り水が残留し、洗浄水や濯ぎ水を十分に排水できないという課題を有していた。
また、ポンプの吐出側に配設された三方弁を介して、浴槽洗浄時の洗浄水や濯ぎ水を排水しているため、ポンプと三方弁の間やポンプのケーシング内に洗浄水や濯ぎ水が残り、浴槽内を完全に濯ぐために何度も注水，濯ぎ動作，排水を繰り返す必要があり、浴槽の洗浄に長時間を要し浴槽洗浄の作業効率に欠けるとともに、浴槽の洗浄に多量の水を要し省資源性に欠けるという課題を有していた。
【０００４】
本発明は上記従来の課題を解決するもので、簡単な構造で、浴槽洗浄装置の循環経路内に洗浄水や濯ぎ水の残り水を残留させることなく排水でき、浴槽洗浄の作業効率に優れるとともに、浴槽洗浄時の濯ぎ水の使用水量を減らすことができ省資源性に優れた浴槽洗浄装置の排水構造を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記従来の課題を解決するために本発明における浴槽洗浄装置の排水構造は、以下の構成を有している。
本発明の請求項１に記載の浴槽洗浄装置の排水構造は、浴槽と、前記浴槽の壁部に形成若しくは配設され前記浴槽の底部側に位置した吸引口を有する吸引ホースの基部が接続され接続部にストレーナが配設された吸引部と、前記浴槽の壁部に配設された浴槽洗浄器と、前記吸引部と前記浴槽洗浄器を接続した循環経路と、前記循環経路に接続された給水部と、吸込側が前記吸引部側に接続され前記循環経路に配設された循環ポンプと、前記循環ポンプの吸込側若しくは吐出側の前記循環経路に配設された熱交換器と、を有した浴槽洗浄装置の排水構造であって、前記循環ポンプのケーシングに接続された排水管と、前記排水管に配設された排水切替弁と、を備え、前記吸引部が、前記循環経路に接続され前記吸引口から吸引された前記浴槽内の浴槽水や洗浄水，濯ぎ水が流れる吸水路を有し、前記浴槽洗浄器が、前記吸引部の前記吸水路の中央を通り、前記循環経路や前記給水部から洗浄水や濯ぎ水が供給される給水路を備えた構成を有している。
これにより、排水切替弁を切り替えることにより、循環経路内に洗浄水や濯ぎ水の残り水を残留させることなく、循環ポンプのケーシングに接続された排水管から洗浄水や濯ぎ水を排水できるとともに、循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて排水できるという作用を有する。
循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて排水できるため、循環ポンプのケーシング内に残り水が残留せず、特に、冬期の凍結による循環ポンプの破損を防止できるという作用を有する。
また、循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて排水できるため、循環ポンプのケーシング内に洗剤等が残留し難く、浴槽洗浄の濯ぎが短時間にできるという作用を有する。
浴槽内の洗浄水が吸引部の吸引口から吸引されて、吸引ホース，吸水路を介して循環経路へ供給され、更に、循環ポンプ，熱交換器を介して浴槽洗浄器へ洗浄水が供給されて、給水路を介して浴槽洗浄器の吐出孔から浴槽内に洗浄水が吐出され浴槽内の洗浄が行われ、洗浄水中の垢や塵等は、吸引部の接続部に配設されたストレーナで濾過されるという作用を有する。
ここで、排水管としては、循環ポンプのケーシングの底部や循環ポンプのケーシングに形成されたドレン栓に接続される。これにより、循環ポンプのケーシング内の洗浄水や濯ぎ水を自然排水できる。
【０００６】
本発明の請求項２に記載の浴槽洗浄装置の排水構造は、請求項１に記載の発明において、前記循環ポンプの吐出側の前記循環経路に配設された切替弁を備えた構成を有している。
これにより、切替弁で循環経路を閉じることができ、洗浄水や濯ぎ水の排水時に、循環ポンプの能力を全て洗浄水や濯ぎ水の排水だけに使用することができ、排水効率を向上できるという作用を有する。
ここで、切替弁としては、三方形弁や二方形弁等、循環経路を閉じることができるものが用いられる。また、切替弁にジェット運転装置等の他の装置を接続してもよい。
【０００７】
【発明の実施の形態】
（実施の形態１）
本発明の実施の形態１における浴槽洗浄装置の排水構造について、以下図面を用いて説明する。
図１は本発明の実施の形態１における浴槽洗浄装置の排水構造を示す模式図である。
図中、１は浴槽、１ａは浴槽１の壁部、２は浴槽１の壁部１ａに配設された吸引部、２ａは浴槽１の底部側に位置した吸引部２の吸引口、２ｂは吸引部２の吸引ホース、３は浴槽１の壁部１ａに配設された浴槽洗浄器、４は吸引部２と浴槽洗浄器３を接続した洗浄水の循環経路、５は循環経路４に接続された給水部、６は給水部５の給水器、７は給水器６と循環経路４を接続した給水部５の給水管、８は給水器６と循環経路４間の給水管７に配設された流量センサ、９は給水器６と流量センサ８の間に配設され流量センサ８の出力信号により開閉する開閉弁、１０は吸込側が吸引部２側に接続され循環経路４に配設された循環ポンプ、１０ａは循環ポンプ１０のケーシングに形成されたドレン栓、１１は循環ポンプ１０の吐出側の循環経路４に配設された熱交換器、１２は循環ポンプ１０のドレン栓１０ａに接続された排水管、１３は排水管１２に配設された排水切替弁である。
【０００８】
次に、実施の形態１における吸引部２及び浴槽洗浄器３について、図面を用いて説明する。
図２は実施の形態１における浴槽洗浄装置の吸引部及び浴槽洗浄器の要部断面図である。
図中、２ｃは吸引口２ａから吸引された浴槽内の浴槽水や洗浄水，濯ぎ水が流れる吸水路、３ａは浴槽洗浄器３に形成され浴槽１内を洗浄する洗浄水や濯ぎ水が吐出される吐出孔、３ｂは浴槽洗浄器３に連通し循環経路４や給水部５から洗浄水や濯ぎ水が供給される給水路、１４は浴槽１内側の吸水路２ｃに連通して吸引部２の吸引ホース２ｂの基部が接続される接続部、１５は接続部１４に配設され垢や塵等を濾過するストレーナである。尚、図中の矢印Ａは吸引部２の吸引口２ａから吸引された浴槽内の浴槽水や洗浄水，濯ぎ水の流れを示し、矢印Ｂは循環経路４や給水部５から供給される洗浄水や濯ぎ水の流れを示す。
【０００９】
以上のように構成された実施の形態１における浴槽洗浄装置の排水構造の浴槽洗浄排水動作について、以下図面を用いて説明する。
図３は実施の形態１における浴槽洗浄装置の排水構造の浴槽洗浄排水動作を示すフローチャート図である。
Ｓ１において、浴槽１の浴槽洗浄の開始が判断されると、Ｓ２において、開閉弁９が開かれ、給水器６から流量センサ８，浴槽洗浄器３の給水路３ｂを介して、浴槽洗浄器３の吐出孔３ａから浴槽１内へ給水が開始される。次いで、Ｓ３において、流量センサ８により浴槽１内に所定量給水されたことが検知されると給水の終了が判断され、Ｓ４において、開閉弁９が閉じられる。ここで、給水器６からの給水により、浴槽１内に予め投入されていた洗剤が溶かされて洗浄水となる。
次に、Ｓ５において、循環ポンプ１０の運転が開始され、浴槽１内の洗浄水が吸引部２の吸引口２ａから吸引されて、図２の矢印Ａに示すように、吸引ホース２ｂ，吸水路２ｃを介して循環経路４へ供給され、更に、循環ポンプ１０，熱交換器１１を介して浴槽洗浄器３へ洗浄水が供給されて、図２の矢印Ｂに示すように、給水路３ｂを介して浴槽洗浄器３の吐出孔３ａから浴槽１内に洗浄水が吐出され浴槽１内の洗浄が行われる。ここで、洗浄水中の垢や塵等は、吸引部２の接続部１４に配設されたストレーナ１５で濾過される。
所定時間の浴槽洗浄の後、Ｓ６において、浴槽洗浄の終了が判断されると、Ｓ７において、循環ポンプ１０が停止される。
次に、Ｓ８において、排水切替弁１３が開かれ、Ｓ９において、循環ポンプ１０の運転が開始されて洗浄水の排水が開始（Ｓ１０）され、循環ポンプ１０のケーシング，ドレン栓１０ａを介して排水管１２から洗浄水が排水される。次いで、Ｓ１１において、循環経路４に配設された水流スイッチや水流センサ（図示せず）等の水流検知手段や、浴槽１の底部に配設された水位電極や圧力スイッチ（図示せず）等の水検知手段により、洗浄水の排水の終了が判断されると、Ｓ１２において、循環ポンプ１０が停止され、Ｓ１３において、排水切替弁１３が閉じられ洗浄水の排水が終了する。
【００１０】
次に、Ｓ１４において、濯ぎの開始が判断されると、再度開閉弁９が開かれ（Ｓ２）て給水器６から浴槽１へ濯ぎ水の給水が開始され、流量センサ８により給水の終了が判断されると（Ｓ３）、開閉弁９が閉じられ（Ｓ４）、循環ポンプ１０の運転が開始（Ｓ５）される。循環ポンプ１０の運転により、浴槽１内の濯ぎ水が吸引口２ａから吸引されて吸引部２を介して循環経路４へ供給され、循環経路４を介して浴槽洗浄器３の吐出口３ａから浴槽１内へ濯ぎ水が吐出されて浴槽１内の濯ぎが行われる。
所定時間、循環経路４を介して濯ぎ水を循環させながら浴槽１の濯ぎを行った後、濯ぎの終了が判断（Ｓ６）され、循環ポンプ１０が停止（Ｓ７）される。
次いで、排水切替弁１３が開かれ（Ｓ８）、循環ポンプ１０の運転が開始（Ｓ９）されて濯ぎ水の排水が開始（Ｓ１０）される。
次に、水流検知手段や水検知手段により濯ぎ水の排水の終了が判断（Ｓ１１）されると循環ポンプ１０が停止され（Ｓ１２）、排水切替弁１３が閉じられる（Ｓ１３）。
更に、同様の濯ぎ動作を所定回数濯ぎ動作を繰り返した後、Ｓ１４において、濯ぎの終了が判断されると、浴槽１の洗浄排水動作が終了する。
【００１１】
以上のように実施の形態１における浴槽洗浄装置の排水構造は構成されているので、以下の作用を有する。
循環ポンプのケーシングのドレン栓に排水管が接続されているため、排水管に配設した排水切替弁を切り替えることにより、循環経路内に洗浄水や濯ぎ水の残り水を残留させることなく洗浄水や濯ぎ水を排水管から排水できる。
排水管が循環ポンプのケーシングのドレン栓に接続されているため、循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて略全て排水でき、特に、冬期の凍結による循環ポンプの破損を防止できる。
循環ポンプのケーシング内の洗浄水や濯ぎ水を略全て排水できるので、循環ポンプのケーシング内や循環経路中に洗浄水や濯ぎ水の残り水を残留させることがなく、新しく供給される濯ぎ水との入れ代わり効率が促進され、浴槽洗浄中の濯ぎ効率を向上でき、浴槽洗浄が短時間でできる。
【００１２】
（実施の形態２）
本発明の実施の形態２における浴槽洗浄装置の排水構造について、以下図面を用いて説明する。
図４は本発明の実施の形態２における浴槽洗浄装置の排水構造を示す模式図である。尚、図１と同様のものには同一の符号を付して説明を省略する。
図中、２０は浴槽１の壁部１ａに形成された吸引部、２０ａは浴槽１の底部側に位置した吸引部２０の吸引口、２０ｂは吸引部２０の吸引ホース、２１は浴槽１の壁部１ａに配設された浴槽洗浄器、２２は循環ポンプ１０の吐出側の循環経路４に配設された切替弁、２３は循環ポンプ１０の吸込側の循環経路４に配設され垢や塵等を濾過するフィルターである。
以上のように構成された実施の形態２における浴槽洗浄装置の排水構造の排水動作について、以下説明する。尚、実施の形態２における浴槽洗浄装置の排水構造の浴槽洗浄動作は、実施の形態１と同様なので説明を省略する。
浴槽洗浄又は濯ぎが終了して循環ポンプ１０が停止すると、実施の形態１と同様に排水切替弁１３が開けられるとともに、切替弁２２が閉じられて循環経路４が閉じられる。
次いで、循環ポンプ１０の運転が開始され、吸引部２０の吸引口２０ａから吸引ホース２０ｂを介して浴槽１内の洗浄水や濯ぎ水が吸引され、フィルター２３，循環ポンプ１０のケーシングに形成されたドレン栓１０ａを介して排水管１２から洗浄水や濯ぎ水が排水される。ここで、洗浄水や濯ぎ水中の垢や塵等はフィルター２３で濾過される。
循環経路４に配設された水流スイッチや水流センサ（図示せず）等の水流検知手段や、浴槽１の底部に配設された水位電極や圧力スイッチ（図示せず）等の水検知手段により、洗浄水や濯ぎ水の排水の終了が判断されると、循環ポンプ１０が停止され、排水切替弁１３が閉じられるとともに、切替弁２２が開かれ循環経路４が開けられて排水動作が終了する。
【００１３】
以上のように実施の形態２における浴槽洗浄装置の排水構造は構成されているので、実施の形態１の作用に加えて、以下の作用を有する。
循環ポンプの吐出側の循環経路に切替弁を有しているため、切替弁を閉じることにより循環経路を閉じることができ、循環ポンプの能力を全て洗浄水や濯ぎ水の排水だけに使用することができ、排水効率を向上でき短時間で排水動作が完了できる。
吸引部と浴槽洗浄器が各々別々に浴槽の壁部に配設されているため、吸引部と浴槽洗浄器の交換や清掃等が容易にできメンテナンス性を向上できる。
【００１４】
【発明の効果】
以上のように本発明における浴槽洗浄装置の排水構造によれば、以下の優れた効果を実現できる。
請求項１に記載の発明によれば、
（１）排水管が、循環ポンプのケーシングに接続されているため、排水管に配設された排水切替弁を切り替えることにより、循環経路内や循環ポンプのケーシング内に洗浄水や濯ぎ水の残り水を残留させることなく確実に洗浄水や濯ぎ水を排水でき、排水性能に優れるとともに、簡単な構造で浴槽洗浄装置の排水性能を向上できる。
（２）循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて略全ての洗浄水や濯ぎ水を排水できるため、循環ポンプのケーシング内や循環経路中に洗浄水や濯ぎ水が残留するのを防止できるとともに、新しく供給される濯ぎ水との入れ代わり効率に優れ、浴槽の濯ぎを従来の約３／４以下の短時間で完了することができ浴槽洗浄の作業効率に優れ、また、濯ぎに使用される濯ぎ水の使用水量を従来の約３／４以下に減らすことができ省資源性に優れる。
（３）循環ポンプのケーシング内の洗浄水や濯ぎ水を含めて略全ての洗浄水や濯ぎ水を排水できるため、循環ポンプのケーシング内に残り水が溜まらず、特に、冬期の凍結による循環ポンプの破損を防止でき循環ポンプの耐久性を向上できる。
（４）浴槽内の洗浄水が吸引部の吸引口から吸引されて、吸引ホース，吸水路を介して循環経路へ供給され、更に、循環ポンプ，熱交換器を介して浴槽洗浄器へ洗浄水が供給されて、給水路を介して浴槽洗浄器の吐出孔から浴槽内に洗浄水が吐出され浴槽内の洗浄が行われ、洗浄水中の垢や塵等は、吸引部の接続部に配設されたストレーナで濾過される。
請求項２に記載の発明によれば、請求項１の効果に加えて、
（５）循環ポンプの吐出側の循環経路に配設された切替弁を有しているため、洗浄水や濯ぎ水の排水時に切替弁で循環経路を閉じることができ、循環ポンプの能力を全て洗浄水や濯ぎ水の排水だけに使用することができ、排水能力を向上でき排水効率に優れ、浴槽洗浄の作業時間を短縮できる。
【図面の簡単な説明】
【図１】本発明の実施の形態１における浴槽洗浄装置の排水構造を示す模式図
【図２】実施の形態１における浴槽洗浄装置の吸引部及び浴槽洗浄器の要部断面図
【図３】実施の形態１における浴槽洗浄装置の排水構造の浴槽洗浄排水動作を示すフローチャート図
【図４】本発明の実施の形態２における浴槽洗浄装置の排水構造を示す模式図
【符号の説明】
１ 浴槽
１ａ 壁部
２，２０ 吸引部
２ａ，２０ａ 吸引口
２ｂ，２０ｂ 吸引ホース
２ｃ 吸水路
３，２１ 浴槽洗浄器
３ａ 吐出孔
３ｂ 給水路
４ 循環経路
５ 給水部
６ 給水器
７ 給水管
８ 流量センサ
９ 開閉弁
１０ 循環ポンプ
１０ａ ドレン栓
１１ 熱交換器
１２ 排水管
１３ 排水切替弁
１４ 接続部
１５ ストレーナ
２２ 切替弁
２３ フィルター[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage structure of a bathtub cleaning device that drains cleaning water and rinsing water during bathtub cleaning.
[0002]
[Prior art]
Traditionally, washing and cleaning in the bathtub has been done manually with detergents and brushes, but manual washing in the bathtub requires physical strength, especially for the elderly. Therefore, in recent years, various bathtub cleaning apparatuses that automatically clean the inside of a bathtub have been disclosed.
As an example of a conventional bathtub cleaning device, Japanese Patent Application Laid-Open No. 10-66659 (hereinafter referred to as “a”) discloses a bathtub, a hot water reservoir formed in a concave shape on the bottom of the bathtub, and a bottom of the hot water reservoir. The drainage port and the circulation port formed, the bathtub washer disposed on the side wall of the bathtub, the water supply pipe connected to the bathtub washer, the water supply unit connected to the water supply pipe, and the circulation port A water absorption pipe, a pump connected to the water absorption pipe and absorbing hot water in the hot water reservoir, a heating means arranged between the pump and the water supply pipe, and a three-way valve arranged between the heating means and the pump And a drain cleaning pipe connected to the three-way valve is disclosed.
The washing of the bathtub in the bathtub washing apparatus of No. 1 publication will be described below.
When the bathtub cleaning device is activated by putting a detergent for bathtub cleaning in the bathtub, water or hot water is supplied from the water supply section to the bathtub cleaning device via the water supply pipe, and water or hot water is washed from the bathtub cleaning device into the bathtub. The required amount is supplied. Next, the water or hot water supplied into the bathtub dissolves the detergent contained in the bathtub to become washing water, and when the water is stored in the hot water reservoir formed on the bottom of the bathtub, the pump starts operation, Wash water is absorbed from the circulation port through the water suction pipe, the wash water is sent to the bathtub washer through the heating means, and the inside of the bathtub is washed by the bathtub washer while circulating the wash water. After the washing water is circulated for a predetermined time and the inside of the bathtub is washed, the pump is stopped, the three-way valve is switched to the drain pipe side, the operation of the pump is started, and the washing water is drained. Next, a predetermined amount of water necessary for rinsing in the bathtub is supplied from the water supply section into the bathtub through the water supply pipe and the bathtub washer, and the pump starts operation. The water is sucked in, sent to the bathtub washer through the heating means, rinsed in the bathtub for a predetermined time while circulating the water, the pump stopped, the three-way valve was switched to the drain pipe side and the pump The operation is started and water is drained. Furthermore, when water is again supplied from the water supply unit into the bathtub and the same rinsing operation is repeated and the rinsing is completed, the three-way valve is switched to the drain pipe side, the water is drained, and the washing in the bathtub is completed.
[0003]
[Problems to be solved by the invention]
However, the conventional bathtub cleaning device has the following problems.
In the bathtub cleaning device described in the gazette, the drain pipe is connected to a three-way valve disposed between the heating means and the pump, and when the washing water or rinsing water is drained, the three-way valve is switched to the drain pipe side for drainage. Since the washing water and rinsing water are drained from the pipe, the pump's drainage capacity is lost when the pump entraps air, and the remaining washing water and rinsing water remain between the pump and the three-way valve. There was a problem that water and rinsing water could not be drained sufficiently.
In addition, since washing water and rinsing water for bath cleaning are drained through a three-way valve arranged on the discharge side of the pump, the washing water and rinsing water are placed between the pump and the three-way valve and in the pump casing. In order to completely rinse the inside of the bathtub, it is necessary to repeat water injection, rinsing operation, and drainage many times. It takes a long time to clean the bathtub and the work efficiency of the bathtub cleaning is insufficient. And has a problem of lacking resource saving.
[0004]
The present invention solves the above-mentioned conventional problems, and has a simple structure and can drain water without remaining the remaining water of washing water and rinsing water in the circulation path of the bathtub cleaning device, and is excellent in work efficiency of bathtub cleaning. An object of the present invention is to provide a drainage structure for a bathtub cleaning apparatus that can reduce the amount of rinsing water used during bathtub cleaning and is excellent in resource saving.
[0005]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, the drainage structure of the bathtub cleaning apparatus in the present invention has the following configuration.
The drainage structure of the bathtub cleaning device according to claim 1 of the present invention is connected to the base of a bathtub and a suction hose that is formed or disposed on the wall of the bathtub and has a suction port located on the bottom side of the bathtub. A suction part in which a strainer is arranged in the connection part, a bathtub washer arranged in the wall part of the bathtub, a circulation path connecting the suction part and the bathtub washer, and connected to the circulation path A water supply unit, a circulation pump whose suction side is connected to the suction unit side and disposed in the circulation path, and a heat exchanger disposed in the circulation path on the suction side or discharge side of the circulation pump. A drainage structure for a bathtub cleaning device, comprising: a drainage pipe connected to a casing of the circulation pump; and a drainage switching valve arranged in the drainage pipe, wherein the suction part is connected to the circulation path It is sucked within the bathtub from the suction port There is a water absorption passage through which bath water, washing water and rinsing water flow, and the bathtub washing device passes through the center of the water absorption passage of the suction portion, and washing water and rinsing water are supplied from the circulation path and the water supply portion. It has the structure provided with a water supply channel.
Thus, by switching the drain switching valve, the washing water and the rinsing water can be drained from the drain pipe connected to the casing of the circulation pump without leaving the remaining water of the washing water and the rinsing water in the circulation path, It has the effect | action that it can drain including the wash water and the rinse water in the casing of a circulation pump.
Since washing water and rinsing water in the casing of the circulation pump can be drained, the remaining water does not remain in the casing of the circulation pump, and in particular has an effect of preventing damage to the circulation pump due to freezing in winter.
Further, since the washing water and the rinsing water in the casing of the circulation pump can be drained, the detergent and the like hardly remain in the casing of the circulation pump, and the bath washing can be performed in a short time.
Wash water in the bathtub is sucked from the suction port of the suction section, supplied to the circulation path via the suction hose and the water suction path, and further supplied to the bathtub washer via the circulation pump and heat exchanger. The wash water is discharged into the bathtub from the discharge hole of the bathtub washer through the water supply channel, and the bathtub is cleaned, and dirt and dust in the wash water are disposed on the connection part of the suction part. It has the effect | action that it is filtered with.
Here, the drain pipe is connected to a drain plug formed on the bottom of the casing of the circulation pump or the casing of the circulation pump. Thereby, the wash water and the rinse water in the casing of the circulation pump can be drained naturally.
[0006]
The drainage structure of the bathtub cleaning device according to claim 2 of the present invention has a configuration including the switching valve disposed in the circulation path on the discharge side of the circulation pump in the invention according to claim 1. ing.
As a result, the circulation path can be closed by the switching valve, and when the washing water and the rinsing water are drained, the entire capacity of the circulation pump can be used only for the draining of the washing water and the rinsing water, and the drainage efficiency can be improved. Has an effect.
Here, as the switching valve, a valve that can close the circulation path, such as a three-way valve or a two-way valve, is used. Further, another device such as a jet driving device may be connected to the switching valve.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
The drainage structure of the bathtub cleaning apparatus in Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic diagram showing a drainage structure of a bathtub cleaning apparatus in Embodiment 1 of the present invention.
In the figure, 1 is a bathtub, 1a is a wall part of the bathtub 1, 2 is a suction part disposed on the wall part 1a of the bathtub 1, 2a is a suction port of the suction part 2 located on the bottom side of the bathtub 1, 2b is The suction hose of the suction part 2, 3 is a bathtub washer arranged on the wall 1 a of the bathtub 1, 4 is a circulation path for the wash water connecting the suction part 2 and the bathtub washer 3, and 5 is connected to the circulation path 4. The water supply section 6, the water supply pipe 6 of the water supply section 5, the water supply pipe 7 of the water supply section 5 connecting the water supply pipe 6 and the circulation path 4, and the water supply pipe 7 between the water supply apparatus 6 and the circulation path 4. The flow rate sensor 9 is provided between the water supply 6 and the flow rate sensor 8 and is opened and closed by an output signal of the flow rate sensor 8. The suction side 10 is connected to the suction part 2 side and is arranged in the circulation path 4. The circulation pump 10a is a drain plug formed in the casing of the circulation pump 10, and 11 is a circulation path 4 on the discharge side of the circulation pump 10. Disposed heat exchanger, 12 is the drain pipe connected to the drain plug 10a of the circulating pump 10, 13 is a water discharge-switching valve disposed in the drain pipe 12.
[0008]
Next, the suction part 2 and the bathtub washer 3 in Embodiment 1 are demonstrated using drawing.
FIG. 2 is a cross-sectional view of the main part of the suction part of the bathtub cleaning device and the bathtub cleaning device in the first embodiment.
In the figure, 2c is a water absorption channel through which bathtub water, washing water, and rinsing water in the bathtub sucked from the suction port 2a flows, and 3a is formed in the bathtub washing device 3 to discharge washing water and rinsing water for washing the inside of the bathtub 1. The discharge hole 3b communicates with the bathtub washer 3 and a water supply path to which cleaning water and rinsing water are supplied from the circulation path 4 and the water supply part 5, and 14 communicates with the water absorption path 2c inside the bathtub 1 to draw the suction part 2 Reference numeral 15 denotes a connecting portion to which the base portion of the suction hose 2b is connected, and 15 is a strainer which is disposed in the connecting portion 14 and filters dirt and dust. In addition, the arrow A in a figure shows the flow of the bath water in the bathtub, the washing water, and the rinse water which were attracted | sucked from the suction opening 2a of the suction part 2, and the arrow B is the washing | cleaning supplied from the circulation path 4 or the water supply part 5 Shows the flow of water and rinse water.
[0009]
The bathtub cleaning / draining operation of the drainage structure of the bathtub cleaning apparatus according to Embodiment 1 configured as described above will be described below with reference to the drawings.
FIG. 3 is a flowchart showing the bathtub cleaning and draining operation of the drainage structure of the bathtub cleaning apparatus in the first embodiment.
When the start of bathtub cleaning of the bathtub 1 is determined in S1, the on-off valve 9 is opened in S2, and the bathtub cleaner 3 is opened from the water supply 6 through the flow rate sensor 8 and the water supply path 3b of the bathtub cleaner 3. Water supply into the bathtub 1 is started from the discharge hole 3a. Next, when it is detected in S3 that a predetermined amount of water has been supplied into the bathtub 1 by the flow sensor 8, it is determined that the water supply has ended, and in S4, the on-off valve 9 is closed. Here, the detergent previously put in the bathtub 1 is dissolved by the water supply from the water supply 6 to become washing water.
Next, in S5, the operation of the circulation pump 10 is started, and the washing water in the bathtub 1 is sucked from the suction port 2a of the suction unit 2, and as shown by the arrow A in FIG. 2c is supplied to the circulation path 4, and further, the wash water is supplied to the bathtub washer 3 via the circulation pump 10 and the heat exchanger 11, and as shown by an arrow B in FIG. Then, washing water is discharged into the bathtub 1 from the discharge hole 3a of the bathtub washer 3, and the bathtub 1 is cleaned. Here, dirt, dust, and the like in the washing water are filtered by the strainer 15 disposed in the connection part 14 of the suction part 2.
After completion of the bathtub cleaning for a predetermined time, when it is determined in S6 that the bathtub cleaning is finished, the circulation pump 10 is stopped in S7.
Next, in S8, the drainage switching valve 13 is opened, and in S9, the operation of the circulation pump 10 is started and drainage of the washing water is started (S10), and the drainage is performed through the casing of the circulation pump 10 and the drain plug 10a. Wash water is drained from the tube 12. Next, in S11, water flow detection means such as a water flow switch and a water flow sensor (not shown) arranged in the circulation path 4, a water level electrode and a pressure switch (not shown) arranged at the bottom of the bathtub 1, etc. When the end of the drainage of the washing water is determined by the water detection means, the circulation pump 10 is stopped in S12, the drainage switching valve 13 is closed in S13, and the drainage of the washing water is finished.
[0010]
Next, in S14, when it is determined that rinsing is started, the on-off valve 9 is opened again (S2), rinsing water is supplied from the water supply 6 to the bathtub 1, and the end of the water supply is determined by the flow rate sensor 8. Then (S3), the on-off valve 9 is closed (S4), and the operation of the circulation pump 10 is started (S5). By the operation of the circulation pump 10, the rinsing water in the bathtub 1 is sucked from the suction port 2 a and is supplied to the circulation path 4 through the suction unit 2, and is discharged from the discharge port 3 a of the bathtub washer 3 through the circulation path 4. The rinsing water is discharged into the tub 1 and the tub 1 is rinsed.
After rinsing the bathtub 1 while circulating the rinsing water through the circulation path 4 for a predetermined time, the end of the rinsing is determined (S6), and the circulation pump 10 is stopped (S7).
Next, the drainage switching valve 13 is opened (S8), the operation of the circulation pump 10 is started (S9), and the rinsing water drainage is started (S10).
Next, when it is determined by the water flow detection means or the water detection means that the rinsing water drainage is finished (S11), the circulation pump 10 is stopped (S12), and the drainage switching valve 13 is closed (S13).
Further, after the same rinsing operation is repeated a predetermined number of times, if it is determined in S14 that the rinsing operation is finished, the washing and draining operation of the bathtub 1 is finished.
[0011]
Since the drainage structure of the bathtub cleaning apparatus in Embodiment 1 is configured as described above, it has the following effects.
Since the drain pipe is connected to the drain plug of the casing of the circulation pump, the washing water is not left in the circulation path by switching the drain switching valve provided in the drain pipe without leaving the remaining washing water or rinsing water in the circulation path. And rinse water can be drained from the drain pipe.
Since the drain pipe is connected to the drain plug of the circulation pump casing, almost all of the water including the washing water and the rinsing water in the casing of the circulation pump can be drained, and in particular, damage to the circulation pump due to freezing in winter can be prevented.
Since almost all of the washing water and rinsing water in the circulation pump casing can be drained, the remaining washing water and rinsing water remain in the circulation pump casing and circulation path, and the newly supplied rinsing water and Therefore, the efficiency of rinsing can be promoted, the rinsing efficiency during washing of the bathtub can be improved, and the washing of the bathtub can be performed in a short time.
[0012]
(Embodiment 2)
The drainage structure of the bathtub cleaning apparatus in Embodiment 2 of the present invention will be described below with reference to the drawings.
FIG. 4 is a schematic diagram showing a drainage structure of a bathtub cleaning apparatus in Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the thing similar to FIG. 1, and description is abbreviate | omitted.
In the figure, 20 is a suction part formed on the wall 1 a of the bathtub 1, 20 a is a suction port of the suction part 20 located on the bottom side of the bathtub 1, 20 b is a suction hose of the suction part 20, and 21 is a wall of the bathtub 1. The bathtub washer disposed in the section 1a, 22 is a switching valve disposed in the circulation path 4 on the discharge side of the circulation pump 10, and 23 is disposed in the circulation path 4 on the suction side of the circulation pump 10 and is free of dirt and dust. It is a filter which filters etc.
The drainage operation of the drainage structure of the bathtub cleaning apparatus according to Embodiment 2 configured as described above will be described below. In addition, since the bathtub cleaning operation | movement of the drainage structure of the bathtub cleaning apparatus in Embodiment 2 is the same as that of Embodiment 1, description is abbreviate | omitted.
When the bath cleaning or rinsing is completed and the circulation pump 10 is stopped, the drainage switching valve 13 is opened, the switching valve 22 is closed, and the circulation path 4 is closed as in the first embodiment.
Next, the operation of the circulation pump 10 is started, and the washing water and the rinsing water in the bathtub 1 are sucked from the suction port 20a of the suction unit 20 through the suction hose 20b, and are formed in the filter 23 and the casing of the circulation pump 10. Washing water and rinsing water are drained from the drain pipe 12 through the drain plug 10a. Here, dirt and dust in the washing water and the rinsing water are filtered by the filter 23.
By means of water flow detection means such as a water flow switch and water flow sensor (not shown) arranged in the circulation path 4, or by water detection means such as a water level electrode and pressure switch (not shown) arranged at the bottom of the bathtub 1. When it is determined that the drainage of the washing water or the rinsing water is finished, the circulation pump 10 is stopped, the drainage switching valve 13 is closed, the switching valve 22 is opened, the circulation path 4 is opened, and the draining operation is finished. .
[0013]
Since the drainage structure of the bathtub cleaning apparatus in the second embodiment is configured as described above, in addition to the functions of the first embodiment, the following functions are provided.
Since there is a switching valve on the circulation path on the discharge side of the circulation pump, the circulation path can be closed by closing the switching valve, and all the capacity of the circulation pump is used only for washing water and rinsing water drainage. The drainage efficiency can be improved and the drainage operation can be completed in a short time.
Since the suction part and the bathtub washer are separately disposed on the wall of the bathtub, the suction part and the bathtub washer can be easily replaced and cleaned, and the maintainability can be improved.
[0014]
【The invention's effect】
As described above, according to the drainage structure of the bathtub cleaning device of the present invention, the following excellent effects can be realized.
According to the invention of claim 1,
(1) Since the drain pipe is connected to the casing of the circulation pump, the washing water and the rinsing water remain in the circulation path and in the casing of the circulation pump by switching the drain switching valve arranged in the drain pipe. Washing water and rinsing water can be surely drained without leaving water, and the drainage performance of the bathtub washing apparatus can be improved with a simple structure as well as excellent drainage performance.
(2) Since almost all washing water and rinsing water including the washing water and rinsing water in the casing of the circulation pump can be drained, the washing water and rinsing water remain in the circulation pump casing and circulation path. In addition to being able to prevent, it is excellent in replacement efficiency with newly supplied rinsing water, and the rinsing of the bathtub can be completed in a short time of about 3/4 or less, so that the efficiency of washing the bathtub is excellent, and it is used for rinsing The amount of rinsing water used can be reduced to about 3/4 or less of the conventional amount, and resource saving is excellent.
(3) Since almost all washing water and rinsing water including the washing water and rinsing water in the casing of the circulation pump can be drained, the remaining water does not accumulate in the casing of the circulation pump. Can be prevented, and the durability of the circulation pump can be improved.
(4) Wash water in the bathtub is sucked from the suction port of the suction section, supplied to the circulation path via the suction hose and the water suction path, and further supplied to the bathtub cleaner via the circulation pump and the heat exchanger. Wash water is discharged into the bathtub from the discharge hole of the bathtub washer through the water supply channel, and the bathtub is cleaned, and dirt, dust, etc. in the wash water are disposed at the connection part of the suction part. Filtered with a strainer.
According to the invention described in claim 2, in addition to the effect of claim 1,
(5) Since it has a switching valve arranged in the circulation path on the discharge side of the circulation pump, the circulation path can be closed by the switching valve when draining washing water or rinsing water. It can be used only for drainage of washing water and rinsing water, improves drainage capacity, has excellent drainage efficiency, and shortens the work time for bath cleaning.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a drainage structure of a bathtub cleaning device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part of a suction unit and a bathtub cleaning device of the bathtub cleaning device according to a first embodiment. The flowchart figure which shows the bathtub washing | cleaning drainage operation | movement of the drainage structure of the bathtub cleaning apparatus in Embodiment 1. [FIG. 4] The schematic diagram which shows the drainage structure of the bathtub washing apparatus in Embodiment 2 of this invention
DESCRIPTION OF SYMBOLS 1 Bathtub 1a Wall part 2,20 Suction part 2a, 20a Suction port 2b, 20b Suction hose 2c Water absorption path 3,21 Bath washer 3a Discharge hole 3b Water supply path 4 Circulation path 5 Water supply part 6 Water supply 7 Water supply pipe 8 Flow rate sensor 9 Opening / closing valve 10 Circulating pump 10a Drain plug 11 Heat exchanger 12 Drain pipe 13 Drain switching valve 14 Connection 15 Strainer 22 Switching valve 23 Filter

Claims (2)

浴槽と、前記浴槽の壁部に形成若しくは配設され前記浴槽の底部側に位置した吸引口を有する吸引ホースの基部が接続され接続部にストレーナが配設された吸引部と、前記浴槽の壁部に配設された浴槽洗浄器と、前記吸引部と前記浴槽洗浄器を接続した循環経路と、前記循環経路に接続された給水部と、吸込側が前記吸引部側に接続され前記循環経路に配設された循環ポンプと、前記循環ポンプの吸込側若しくは吐出側の前記循環経路に配設された熱交換器と、を有した浴槽洗浄装置の排水構造であって、
前記循環ポンプのケーシングに接続された排水管と、前記排水管に配設された排水切替弁と、を備え、
前記吸引部が、前記吸引口から吸引された前記浴槽内の浴槽水や洗浄水，濯ぎ水が流れる吸水路を有し、
前記浴槽洗浄器が、前記吸引部の前記吸水路の中央を通り、前記循環経路や前記給水部から洗浄水や濯ぎ水が供給される給水路を備えていることを特徴とする浴槽洗浄装置の排水構造。A bathtub, a suction part formed or disposed on the wall of the bathtub and connected to a base of a suction hose having a suction port located on the bottom side of the bathtub, and a strainer disposed on a connection part; and a wall of the bathtub A bathtub cleaning device disposed in a section, a circulation path connecting the suction section and the bathtub cleaning apparatus, a water supply section connected to the circulation path, and a suction side connected to the suction section side to the circulation path A drainage structure of a bathtub cleaning device having a circulation pump disposed and a heat exchanger disposed in the circulation path on the suction side or discharge side of the circulation pump,
A drain pipe connected to the casing of the circulation pump, and a drain switching valve disposed in the drain pipe,
The suction part has a water absorption path through which bathtub water, washing water, or rinsing water in the bathtub sucked from the suction port flows,
The bathtub cleaning device is provided with a water supply path that passes through the center of the water absorption path of the suction section and is supplied with cleaning water and rinsing water from the circulation path and the water supply section. Drainage structure. 前記循環ポンプの吐出側の前記循環経路に配設された切替弁を備えていることを特徴とする請求項１に記載の浴槽洗浄装置の排水構造。  The drainage structure for a bathtub cleaning apparatus according to claim 1, further comprising a switching valve disposed in the circulation path on the discharge side of the circulation pump.

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