JP3675560B2

JP3675560B2 - Hot water circulation connection for bath

Info

Publication number: JP3675560B2
Application number: JP05623896A
Authority: JP
Inventors: 實波多野
Original assignee: 株式会社ハタノ製作所
Priority date: 1996-03-13
Filing date: 1996-03-13
Publication date: 2005-07-27
Anticipated expiration: 2016-03-13
Also published as: JPH09243178A

Description

【０００１】
【発明の属する技術分野】
本発明は、浴槽と風呂釜とを接続して湯水を強制循環させるのに使用する浴槽用給湯循環接続具に関するものである。
【０００２】
【従来の技術】
一般に風呂釜と浴槽とは、湯水を強制的に循環させる往路用通路と戻り路用通路を形成した接続具を介して接続されている。そして、風呂釜側に設けられた循環ポンプを作動させて浴槽内の湯水を接続具の戻り路用通路から循環ポンプによって吸引する。そして、循環ポンプの吐出側から熱交して送出された湯水は、接続具の往路用通路を介して浴槽内に吐出されている。
【０００３】
上記のような湯水を強制的に循環させるための接続具としては、例えば実開平５ー１９８５９号公報に記載のような接続具など従来から種々のものが開発されている。上記公報に記載の接続具は、浴槽の湯水を抜いたときにサイフォン現象によって接続具の通路内の湯水が抜けて、新たに湯水を浴槽に満たして追い焚きをする際に循環ポンプの作動によって空気が通路内に入り込み、循環ポンプの作動がスムーズに出来なくなる、といったことを防止するために、トラップ通路部を接続具内の二次元方向に形成し、浴槽から湯水を抜いたときでもサイフォン現象によって接続具内の通路から湯水が抜けることなくトラップ通路部に呼び水としての湯水が残るようにしてある。
【０００４】
【発明が解決しようとする課題】
ところが、最近は二階建てや三階建ての家屋が増えてきており、これらの家屋では浴室を階下に設け、風呂釜を上階に設置しているところが多い。そして、この上階の風呂釜側に設けた循環ポンプと、階下の浴室に設置した浴槽との間で湯水循環接続具を介して湯水を上下方向に循環させている。
【０００５】
このような場合、上記のような接続具内の二次元方向にトラップ通路部を形成した構成の接続具では、上階に設置した風呂釜側の循環ポンプと、階下に設置したの浴槽との間には大きな落差があり、浴槽の湯水を抜いたときにトラップ通路部の湯水も抜けてしまう。そのため新たに湯水を浴槽に満たして追い焚きをするために循環ポンプを作動させようとした時、循環ポンプの駆動がスムーズにできないといった問題があった。
【０００６】
本発明は上記のような問題点を解決するために開発されたものであり、その目的とするところは、二階や三階建て家屋等において、風呂釜と浴槽とが上・下階に分かれて設置されたような場合でも、湯水を浴槽から排水したときにサイフォン現象によって湯水通路内から湯水が抜けることなく、再度浴槽に湯水を満たした時にスムーズに湯水を循環させて追い焚きすることができるようにした浴槽用給湯循環接続具を提供することにある。
【０００７】
【課題を解決するための手段】
そこで、本発明は上記目的を達成するために、次のような構成にしてある。すなわち、内部が中央通路と外周通路に分割形成され且つ上記中央通路に連通する接続管と上記外周通路に連通する接続管とを接続してなる浴槽取付金具と、この浴槽取付金具に連結でき且つ上記各通路に連通する通路を内部に形成してなる浴槽挟着具と、この浴槽挟着具の通路内に挿入して上記浴槽取付金具の中央通路に連通するように嵌合できる円筒体を形成すると共に、この円筒体の外側の浴槽挟着具の通路を介して上記浴槽取付金具の外周通路に連通する通路を形成し、且つ湯水吐出口と湯水戻り口を形成してなる給湯通路分割具と、この給湯通路分割具の前面に着脱自在に設けることができるフイルターキャップとからなる浴槽用給湯循環接続具において、上記給湯通路分割具は、通路分割本体、通路分割中間部材、および通路分割部材からなり、かつ通路分割本体と通路分割中間部材との対峙する所定箇所にそれぞれ湯水吐出口と湯水戻り口とが形成されていて、上記通路分割本体、通路分割中間部材、通路分割部材の順に互いに係合させて組み合わせることによって構成し、さらに、上記給湯通路分割具の湯水吐出口と上記浴槽取付金具の中央通路または外周通路とに連通する通路分割本体、通路分割中間部材、および通路分割部材の各通路内には共に通じる往路用トラップ通路部がそれぞれ形成されていて、
かつ上記給湯通路分割具の湯水戻り口と上記浴槽取付金具の外周通路または中央通路に連通する通路分割本体、通路分割中間部材、および通路分割部材の各通路内には共に通じる戻り路用トラップ通路部がそれぞれ形成されている構成にしてある。
【０００８】
【発明の実施の形態】
本発明の実施の形態を添付の図１〜図１８に基づいて説明する。図１は本発明に係る一実施例の浴槽用給湯循環接続具の分解斜視図であって、この浴槽用給湯循環接続具１は、浴槽取付金具２およびパッキン２ａと、浴槽挟着具３と、給湯通路分割具４と、フイルターキャップ５とによって構成されている。
【０００９】
浴槽取付金具２は、一端を開口してなる有底円筒状のものであって、内部に２つの通路（中央通路６ａ、外周通路６ｂ）が分割形成されている。開口端７にはフランジ８が形成してある。
【００１０】
また、この開口端７寄りの内周面には、浴槽挟着具３と螺着できるようにネジ溝９が形成してある。この中空なる浴槽取付金具２の中央部には円筒体１０が底部から一体的に形成してある。円筒体１０の先端１０ａは、浴槽取付金具２の開口端７とほぼ面一となるように形成してある。上記の円筒体１０によって浴槽取付金具２内は２つの内部空間に分割され、上記中央通路６ａが円筒体１０内に、また外周通路６ｂが円筒体１０の外周にそれぞれ形成されている。
【００１１】
さらに、上記各通路６ａ、６ｂの位置する浴槽取付金具２の底部位置には、それぞれ穴（図示省略）が形成してある。この各穴を介して上記通路６ａ、６ｂに連通するようにして２つの接続管１１、１２が設けてある。接続管１１は中央通路６ａに連通し、接続管１２は外周通路６ｂに連通するようにしてある。また各接続管１１、１２の端部には、ネジ溝１３ａ、１３ｂが形成してある。
【００１２】
また、上記浴槽挟着具３は、全体が合成樹脂によって形成され、上記浴槽取付金具２のネジ溝９と螺合できるように外周面にネジ溝１４を形成した筒体部１５と、この筒体部１５の一端に形成したフランジ部１６と、このフランジ部１６の外周に一定間隔を以て突出形成した止めネジ受部１７とからなる。上記筒体部１５の通路１８は、浴槽取付金具２の各通路６ａ、６ｂに臨み、給湯通路分割具４を浴槽挟着具３に取り付けたとき、この浴槽挟着具３の通路１８は浴槽取付金具２の外周通路６ｂと連通する。
【００１３】
また、本発明の要部である上記給湯通路分割具４は、通路分割本体１９と通路分割中間部材２０と通路分割部材２１とによって構成され、それぞれが合成樹脂によって形成されている。
【００１４】
図２〜図６に示すようにこの通路分割本体１９は全体が円形状であって、外周に壁部２３が形成され、この壁部２３の２箇所に開口２４、２５が形成してある。この壁部２３で囲繞された通路分割本体１９の内面側２２（図３参照）には、往路用トラップ通路部２６（１）を有する通路２７（１）と、戻り路用トラップ通路部２８（１）を有する通路２９（１）とが後述する各々仕切り壁によって分割形成されている。
【００１５】
すなわち、上記の往路用トラップ通路部２６（１）を有する通路２７（１）は、通路分割本体１９の内面側２２の中央部から仕切り壁３０ａ、３０ｂ、３０ｃ、３０ｄ、３０ｇと外周仕切り壁３４とによって形成され略Ｕ字形の通路２７ａ（全体の通路２７（１）の一部）と、上記仕切り壁３０ｃ、３０ｄと仕切り壁３０ｅ、３０ｆ、３０ｇと外周仕切り壁３４とによって形成された略逆Ｕ形の通路２７ｂとからなる。この通路２７ｂの端部の湯水吐出口３１ａは、上記外周仕切り壁３４の一方の開口２４に位置している。
【００１６】
また、この通路２７（１）において往路用トラップ通路部２６（１）は、上記通路２７ａと、通路２７ｂの一部である仕切り壁３０ｄ、３０ｅ、３０ｆ、３０ｇおよび外周仕切り壁３４によって形成される通路部２７ｃの箇所である。
【００１７】
また、通路２９（１）は、仕切り壁３０ｂ、３０ｅ、３０ｈと外周仕切り壁３４によって形成された略逆Ｕ字形であって、この通路２９（１）の端部の湯水戻り口３２ａは、上記壁部２３の他方の開口２５に位置している。
【００１８】
この通路２９（１）において戻り路用トラップ通路部２８（１）は、仕切り壁３０ｂ、３０ｈと外周仕切り壁３４によって形成されている通路部２９ａの箇所である。
【００１９】
また、図４〜図６に示すように各仕切り壁（図３参照）および外周仕切り壁３４の上端面には、後述する通路分割中間部材２０と嵌合できるように多数の嵌合凹部３３が夫々形成してある。
【００２０】
次に図７〜図１０に示すように通路分割中間部材２０は円形状であって、この通路分割中間部材２０の内面側３５には、上記通路分割本体１９（図３参照）の各仕切り壁３０ａ、３０ｂ、３０ｃ、３０ｄ、３０ｅ、３０ｆ、３０ｇ、３０ｈおよび外周仕切り壁３４の上端と対峙する位置に、図８に示すように仕切り壁３６ａ、３６ｂ、３６ｃ、３６ｄ、３６ｅ、３６ｆ、３６ｇ、３６ｈおよび外周仕切り壁３７が形成されている。
【００２１】
上記の各仕切り壁３６ａ、３６ｂ、３６ｃ、３６ｄ、３６ｅ、３６ｆ、３６ｇ、３６ｈおよび外周仕切り壁３７によって、この通路分割中間部材２０の内面側３５に、上記通路分割本体１９の通路２７（１）に合致する形状の通路２７（２）、および上記通路分割本体１９の通路２９（１）に合致する形状の通路２９（２）が形成されている。また、中央には貫通穴４８ａが形成されている。
【００２２】
上記の通路２７（２）は、仕切り壁３６ａ、３６ｂ、３６ｃ、３６ｄおよび外周仕切り壁３７によって形成された略Ｕ形の通路３９ａ（全体の通路２７（２）の一部）と、上記仕切り壁３６ｃ、３６ｄ、３６ｅ、３６ｆ、３６ｇおよび外周仕切り壁３７によって形成された略逆Ｕ形の通路３９ｂとからなる。この通路３９ｂの端部には湯水吐出口３１ｂが形成されている。
【００２３】
また、この通路２７（２）において往路用トラップ通路部２６（２）は、上記通路３９ａと、通路３９ｂの一部である仕切り壁３６ｄ、３６ｅ、３６ｆ、３６ｇおよび外周仕切り壁３７によって形成される通路部３９ｃとからなる箇所である。
【００２４】
また、上記通路２９（２）は、仕切り壁３６ｂ、３６ｅ、３６ｈおよび外周仕切り壁３７によって形成される略逆Ｕ形の通路であって、この通路２９（２）の端部には湯水戻り口３２ｂが形成されている。
【００２５】
この通路２９（２）において戻り路用トラップ通路部２８（２）は、仕切り壁３６ｂ、３６ｈと外周仕切り壁３７によって形成されている通路部４０ａの箇所である。
【００２６】
また、この通路分割中間部材２０には、上記通路２７（２）の略Ｕ字形の通路３９ａの仕切り壁３０ｄ寄りに中間部材開口部４２が形成されている。また、略逆Ｕ字形の通路３９ｂの仕切り壁３０ｄ寄りには中間部材開口部４３が形成されている。また、略逆Ｕ字形の通路２９（２）の仕切り壁３６ｂ寄りには、中間部材開口部４４が形成されている。
【００２７】
さらに、図９に示すように上記の各仕切り壁および外周仕切り壁３７の上端面には、上記通路分割本体１９の各仕切り壁（図３〜図５参照）の上端面に形成した嵌合凹部３３と嵌合する凸部４１が夫々形成されている。また、この通路分割中間部材２０の外面側４５には、後述する通路分割部材２１と嵌合できるように複数の凹部４６が形成してある。
【００２８】
次に図１１〜図１３に示すように通路分割部材２１は、中央部に上記浴槽取付金具２の円筒体１０に嵌入できる筒体部４７を形成すると共に、この筒体部４７の一端に通路分岐部５２が形成されている。
【００２９】
通路分岐部５２の内面側５４には、中央の貫通路４８ｂの外周に、上記中間部材開口部４２、中間部材開口部４３、中間部材開口部４４（図７参照）を介して、通路分割中間部材２０（図８参照）の往路用トラップ通路部２６（２）に連通する往路用トラップ通路部２６（３）と、上記通路分割中間部材２０の戻り路用トラップ通路部２８（２）に連通する戻り路用トラップ通路部２８（３）とが、それぞれ仕切り壁４９、５０および外周壁５１によって形成されている。この通路分岐部５２の通路２８（３）の仕切り壁４９寄りには、分割部材開口部５３が形成されている。
【００３０】
また、この通路分岐部５２の内面側５４の筒体部４７、仕切り壁４９、５０、外周壁５１の上端面には、上記通路分割中間部材２０の外面側４５に形成した各凹部４６（図９参照）と嵌合できる位置に嵌合凸部５５が形成されている。
【００３１】
上記のように構成される通路分割本体１９と通路分割中間部材２０と通路分割部材２１は、図１４〜図１６に示すように通路分割本体１９の内面側２２と通路分割中間部材２０の内面側３５を対峙させ、通路分割本体１９の湯水吐出口３１ａおよび湯水戻り口３２ａと、通路分割中間部材２０の湯水吐出口３１ｂおよび湯水戻り口３２ｂとを合致させると共に、通路分割本体１９の嵌合凹部３３と通路分割中間部材２０の嵌合凸部５４とを嵌合させて結合する。さらに、この通路分割中間部材２０の外面側４５の嵌合凹部４６に、通路分割部材２１の内面側５４の嵌合凸部５５を嵌合させて結合する。このようにして通路分割本体１９と通路分割中間部材２０と通路分割部材２１とを一体的に組み合わせて給湯通路分割具４を組み立てる。
【００３２】
このとき、図１７〜図１８に示すように通路分割中間部材２０の中間部材開口部４２は、通路分割本体１９の仕切り壁３０ａ、３０ｃ、３０ｄで仕切られた往路用トラップ通路部２６（１）に位置し、中間部材開口部４３は通路分割本体１９の仕切り壁３０ｅ、３０ｇ、３０ｄ、３０ｆで仕切られた通路部２７ｃに位置する。さらに、中間部材開口部４４は、通路分割本体１９の仕切り壁３０ｂ、３０ｈおよび外周仕切り壁３４で仕切られた戻り路用トラップ通路部２８（１）に位置する。
【００３３】
また、上記の中間部材開口部４２および中間部材開口部４３は、外面側４５に設けた通路分割部材２１の往路用トラップ通路部２６（３）に位置する。さらに、中間部材開口部４４は、外面側４５に設けた通路分割部材２１の戻り路用トラップ通路部２８（３）に位置する。
【００３４】
また、通路分割部材２１の分割部材開口部５３は、上記浴槽挟着具３の通路１８に連通し、この通路１８を介して浴槽取付金具２の外周通路６ｂに連通する。
【００３５】
このように通路分割本体１９と通路分割中間部材２０と通路分割部材２１とを組み合わせて給湯通路分割具４を形成することにより、給湯通路分割具４の内部には上述のように往路用トラップ通路部２６（１）、２６（２）、２６（３）と、戻り路用トラップ通路部２８（１）、２８（２）、２８（３）とからなる三次元方向に巡らせたトラップ通路部が構成されている。
【００３６】
ここで、図１７および図１８によって給湯通路分割具４における湯水の往路（実線で示す）と戻り路（破線で示す）の流れについて説明する。先ず湯水の往路として通路分割部材２１の貫通路４８ｂから流入した湯水は、通路分割中間部材２０の貫通路４８ｂを通って通路分割本体１９（図１７参照）の中央部に流入し、通路分割本体１９（および通路分割中間部材２０）の略Ｕ字状の往路用トラップ通路部２６（１）（２）を通った湯水は、通路分割中間部材２０の中間部材開口部４２を通って通路分割部材２１の往路用トラップ通路部２６（３）に入り、この往路用トラップ通路部２６（３）から再び通路分割中間部材２０の中間部材開口部４３を通って通路分割本体１９（および通路分割中間部材２０）の略逆Ｕ字状の往路用トラップ通路部２６（２）（１）を通って湯水吐出口２１から浴槽内に吐出される。
【００３７】
一方、破線で示すように通路分割本体１９（および通路分割中間部材２０）のの湯水戻り口３２（図１７参照）から流入した浴槽内の湯水は、通路分割本体１９（および通路分割中間部材２０）の略逆Ｕ字状の戻り路用トラップ通路部２８（１）（２）を通って（図１８参照）、通路分割中間部材２０の中間部材開口部４４から通路分割部材２１の戻り路用トラップ通路部２８（３）に入り、この戻り路用トラップ通路部２８（３）内を通って分割部材開口部５３から浴槽挟着具３（図１参照）の通路１８を通って浴槽取付金具２の外周通路６ｂ、接続管１２から風呂釜（図示せず）に戻される。
【００３８】
上記のような構成からなる給湯通路分割具４の通路分割本体１９には、図２に示すように外面側５６に着脱可能なフイルターキャップ５が嵌着される。フイルターキャップ５の正面と、通路分割本体１９の開口２４、２５の位置には夫々フイルター５８が設けられる。
【００３９】
上記の浴槽用給湯循環接続具１を浴槽の貫通穴を穿設した側壁（図示せず）に設け、この浴槽用給湯循環接続具１の接続管１１に風呂釜側の循環ポンプ（図示せず）に接続した往路用管（図示せず）を接続し、浴槽用給湯循環接続具１の接続管１２に風呂釜側の循環ポンプ（図示せず）に接続した戻り路用管を接続し、浴槽に水を満たし循環ポンプを作動せて水（または湯水）を循環させながら風呂釜（図示せず）で風呂（水）を焚く。
【００４０】
また、浴槽と風呂釜側との設置場所に落差がある場合に浴槽内の湯水を抜いた時に強いサイフォン現象によって浴槽用給湯循環接続具１の通路から完全に湯水が抜けることがなく、湯水は、通路分割本体１９、通路分割中間部材２０、通路分割部材２１からなる給湯通路分割具４の三次元方向に形成された各往路用トラップ通路部２６（１）、２６（２）、２６（３）、および各戻り路用トラップ通路部２８（１）、２８（２）、２８（３）の各箇所（図１７、図１８に示す湯水流れの太線で示す箇所）に溜まる。そのため、再び浴槽に湯水を満たして追い焚きをする場合に、風呂釜側の循環ポンプを作動させた時にも、上記各トラップ通路部に溜まった湯水が呼び水となって直ちに作動させることができる。
【００４１】
なお、上記した浴槽用給湯循環接続具１の湯水の往路用通路と戻り路用通路とを逆にして使用してもよい。この場合は、上記した往路側と戻り路側の湯水の流れは逆になる。
【００４２】
【発明の効果】
このように本発明の浴槽用給湯循環接続具では、給湯通路分割具の湯水吐出口と上記浴槽取付金具の中央通路または外周通路とに連通する通路内に往路用トラップ通路部と、湯水戻り口と上記浴槽取付金具の外周通路または中央通路に連通する通路内に戻り路用トラップ通路部とを、上記給湯通路分割具の内部の三次元方向に巡るようにそれぞれ形成してあるので、１階建ての家屋はもとより、２階建てや３階建てなどの家屋において、浴槽と風呂釜を上下階に別けて設置した場合でも、浴槽内の湯水を排水したときに往路用トラップ通路部および戻り路用トラップ通路部に存在する湯水はサイフォン現象によっても抜けることがなく、浴槽内に再び湯を満たして追い焚きの為に風呂釜の循環ポンプを作動させた場合にも、浴槽用給湯循環接続具の各通路に空気が入り込むこともなく、スムーズに循環ポンプを作動と共に追い焚きを行うことができる。
【図面の簡単な説明】
【図１】本発明に係る浴槽用給湯循環接続具の分解斜視図である。
【図２】本発明に係る通路分割本体の正面図である。
【図３】本発明に係る通路分割本体の背面図である。
【図４】図３のＡーＡ矢視断面図である。
【図５】図３のＢーＢ矢視断面図である。
【図６】図３のＣーＣ矢視断面図である。
【図７】本発明に係る通路分割中間部材の背面図である。
【図８】本発明に係る通路分割中間部材の正面図である。
【図９】図８のＤーＤ断面図である。
【図１０】本発明に係る通路分割中間部材の側面図である。
【図１１】本発明に係る通路分割部材の背面図である。
【図１２】本発明に係る通路分割部材の正面図である。
【図１３】本発明に係る通路分割部材の縦断面図である。
【図１４】本発明に係る給湯通路分割具の縦断面図である。
【図１５】本発明に係る給湯通路分割具の正面図である。
【図１６】本発明に係る給湯通路分割具の底面図である。
【図１７】本発明に係る通路分割部材方向から見た給湯通路分割具内の湯水の流れを示す説明図である。
【図１８】本発明に係る通路分割本体方向から見た給湯通路分割具内の湯水の流れを示す説明図である。
【符号の説明】
１浴槽用給湯循環接続具
２浴槽取付金具
３浴槽挟着具
４給湯通路分割具
５フイルターキャップ
６ａ中央通路
６ｂ外周通路
１９通路分割本体
２０通路分割中間部材
２１通路分割部材
２６（１）、２６（２）、２６（３）往路用トラップ通路部
２８（１）、２８（２）、２８（３）戻り路用トラップ通路部
３１ａ、３１ｂ湯水吐出口
３２ａ、３２ｂ湯水戻り口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water supply / circulation connector for bathtubs used for connecting a bathtub and a bath tub and forcibly circulating hot water.
[0002]
[Prior art]
In general, the bath tub and the bathtub are connected to each other via a connection tool that forms a forward passage and a return passage for forcibly circulating hot water. Then, a circulation pump provided on the side of the bath is operated to suck hot water in the bathtub from the return path passage of the connector by the circulation pump. And the hot water sent in heat exchange from the discharge side of the circulation pump is discharged in the bathtub through the outward path passage of the connection tool.
[0003]
As a connection tool for forcibly circulating hot water as described above, various kinds of connection tools such as the connection tool described in Japanese Utility Model Laid-Open No. 5-19859 have been developed. Connecting device disclosed in the above publication is missing hot water in the passageway of the connector by siphon effect when disconnect the hot water bath, by the operation of the circulation pump when a new follow meet hot water into bathtub fired In order to prevent air from entering the passage and the circulation pump from operating smoothly, the trap passage is formed in a two-dimensional direction in the connector and siphoning even when hot water is removed from the bathtub. As a result, hot water as priming water remains in the trap passage portion without hot water coming out of the passage in the connector.
[0004]
[Problems to be solved by the invention]
However, recently, two-story and three-story houses are increasing, and in many of these houses, a bathroom is installed downstairs and a bath tub is installed upstairs. And hot water is circulated in the up-down direction via the hot water circulation connection tool between the circulation pump provided in the upper tub side of this upper floor and the bathtub installed in the downstairs bathroom.
[0005]
In such a case, in the connector having a configuration in which the trap passage portion is formed in the two-dimensional direction in the connector as described above, there is a circulation pump on the side of the bath installed on the upper floor and a bathtub installed on the lower floor. There is a big drop between them, and when the hot water in the bathtub is pulled out, the hot water in the trap passage also falls out. For this reason, there is a problem that when the circulation pump is operated to refill the bathtub with hot water, the circulation pump cannot be driven smoothly.
[0006]
The present invention has been developed to solve the above-described problems. The purpose of the present invention is to separate the bath and bathtub into upper and lower floors in a two-story or three-story house. Even if it is installed, when hot water is drained from the bathtub, the hot water does not escape from the hot water passage due to the siphon phenomenon, and when the hot water is filled again in the bathtub, the hot water can be smoothly circulated and chased. An object of the present invention is to provide a hot water supply circulation connector for a bathtub.
[0007]
[Means for Solving the Problems]
Therefore, in order to achieve the above object, the present invention is configured as follows. That is, a bathtub mounting bracket that is internally divided into a central passage and an outer peripheral passage and that connects a connecting pipe that communicates with the central passage and a connecting pipe that communicates with the outer peripheral passage, and can be coupled to the bathtub mounting bracket. A bathtub sandwiching tool formed inside a passage communicating with each of the passages, and a cylindrical body that can be inserted into the passage of the bathtub sandwiching tool and can be fitted to communicate with the central passage of the bathtub fitting. A hot water supply passage divided by forming a passage communicating with the outer peripheral passage of the bathtub mounting bracket through a passage of a bathtub sandwiching tool outside the cylindrical body, and forming a hot water discharge port and a hot water return port and ingredients, in bath hot water supply circulation connector comprising a filter cap which can be provided detachably on the front surface of the hot water supply passage divider, the hot water supply passage divider is passage dividing body, the passage divides the intermediate member, and the passage component Made member, and each of the predetermined positions hot water discharge port and hot water return port that faces the passage divided body and the passage divided intermediate member and are being formed, the passage dividing body, the passage divides the intermediate member, in the order of passage split member A passage division body, a passage division intermediate member, and a passage division member that are configured by being engaged with each other and further communicated with the hot water discharge port of the hot water supply passage division tool and the central passage or the outer peripheral passage of the bathtub fitting. Each of the passages is formed with an outward trap passage portion that leads to both,
And a passage dividing main body, a passage dividing intermediate member communicating with the hot water return port of the hot water supply passage dividing tool and the outer peripheral passage or the central passage of the bathtub mounting bracket, and a return passage trap passage communicating with each other of the passage dividing member. The parts are formed respectively .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view of a hot water supply / circulation connector for bathtubs according to an embodiment of the present invention. The hot water supply / circulation connector for bathtubs 1 includes a bathtub mounting bracket 2 and a packing 2a, a bathtub sandwiching tool 3, The hot water supply passage dividing tool 4 and the filter cap 5 are configured.
[0009]
The bathtub mounting bracket 2 has a bottomed cylindrical shape with one end opened, and two passages (a central passage 6a and an outer peripheral passage 6b) are divided and formed therein. A flange 8 is formed at the open end 7.
[0010]
A thread groove 9 is formed on the inner peripheral surface near the opening end 7 so as to be screwed to the bathtub sandwiching tool 3. A cylindrical body 10 is integrally formed from the bottom at the center of the hollow bathtub mounting bracket 2. The front end 10 a of the cylindrical body 10 is formed so as to be substantially flush with the open end 7 of the bathtub mounting bracket 2. The inside of the bathtub mounting bracket 2 is divided into two internal spaces by the cylindrical body 10, and the central passage 6 a is formed in the cylindrical body 10 and the outer peripheral passage 6 b is formed on the outer periphery of the cylindrical body 10.
[0011]
Further, holes (not shown) are formed at the bottom position of the bathtub fitting 2 where the passages 6a and 6b are located. Two connecting pipes 11 and 12 are provided so as to communicate with the passages 6a and 6b through the holes. The connecting pipe 11 communicates with the central passage 6a, and the connecting pipe 12 communicates with the outer peripheral passage 6b. Further, threaded grooves 13a and 13b are formed at the ends of the connecting pipes 11 and 12, respectively.
[0012]
In addition, the bathtub sandwiching tool 3 is formed of a synthetic resin, and has a cylindrical body portion 15 having a thread groove 14 formed on the outer peripheral surface so as to be screwed with the thread groove 9 of the bathtub mounting bracket 2. The flange portion 16 is formed at one end of the body portion 15, and the set screw receiving portion 17 is formed so as to protrude from the outer periphery of the flange portion 16 at a predetermined interval. The passage 18 of the tubular body portion 15 faces each of the passages 6a and 6b of the bathtub fitting 2, and when the hot water supply passage divider 4 is attached to the bathtub sandwiching tool 3, the passage 18 of the bathtub sandwiching tool 3 is the bathtub. It communicates with the outer peripheral passage 6b of the mounting bracket 2.
[0013]
Further, the hot water supply passage divider 4 which is a main part of the present invention is constituted by a passage division main body 19, a passage division intermediate member 20, and a passage division member 21, each of which is formed of a synthetic resin.
[0014]
As shown in FIGS. 2 to 6, the passage division main body 19 has a circular shape as a whole, and a wall portion 23 is formed on the outer periphery, and openings 24 and 25 are formed at two locations on the wall portion 23. The inner surface 22 of the passage divided body 19 which is surrounded by the wall portion 23 (see FIG. 3), a passage 27 (1) having an outward trap passage 26 (1), the return path for the trap passage 28 ( The passage 29 (1) having 1) is divided and formed by partition walls which will be described later.
[0015]
That is, the passage 27 (1) having the forward trap passage portion 26 (1) is divided into the partition walls 30a, 30b, 30c, 30d, and 30g and the outer peripheral partition wall 34 from the central portion on the inner surface side 22 of the passage division main body 19. A substantially U-shaped passage 27a (part of the entire passage 27 (1) ), the partition wall 30c, 30d, the partition walls 30e, 30f, 30g, and the outer peripheral partition wall 34. It comprises a U-shaped passage 27b. The hot water outlet 31a at the end of the passage 27b is located in one opening 24 of the outer peripheral partition wall 34.
[0016]
Further, in this passage 27 (1) , the forward trap passage portion 26 (1) is formed by the passage 27a, the partition walls 30d, 30e, 30f, 30g and the outer peripheral partition wall 34 which are part of the passage 27b. This is the location of the passage portion 27c.
[0017]
The passage 29 (1) has a substantially inverted U shape formed by the partition walls 30b, 30e, 30h and the outer peripheral partition wall 34. The hot water return port 32a at the end of the passage 29 (1) It is located in the other opening 25 of the wall portion 23.
[0018]
In this passage 29 (1) , the return passage trap passage portion 28 (1) is a portion of the passage portion 29a formed by the partition walls 30b and 30h and the outer peripheral partition wall 34.
[0019]
Further, the upper end face of the 4-6 are shown as each of the partition walls (see FIG. 3) and the outer peripheral partition wall 34, a number of fitting recess 33 so as to be fitted and the passage dividing the intermediate member 20 to be described later Each is formed.
[0020]
Next, as shown in FIGS. 7 to 10, the passage dividing intermediate member 20 has a circular shape, and each partition wall of the passage dividing main body 19 (see FIG. 3) is provided on the inner surface side 35 of the passage dividing intermediate member 20. 30a, 30b, 30c, 30d, 30e, 30f, 30g, 30h and the partition walls 36a, 36b, 36c, 36d, 36e, 36f, 36g, as shown in FIG. 36h and the outer peripheral partition wall 37 are formed.
[0021]
By the partition walls 36a, 36b, 36c, 36d, 36e, 36f, 36g, 36h and the outer peripheral partition wall 37, the passage 27 (1) of the passage division main body 19 is placed on the inner surface side 35 of the passage division intermediate member 20. passage 27 having a shape matching (2), and the passage division shape of the passage 29 that matches the passage 29 (1) of the main body 19 (2) is formed on. A through hole 48a is formed at the center.
[0022]
The passage 27 (2) includes a substantially U-shaped passage 39a (a part of the entire passage 27 (2)) formed by the partition walls 36a, 36b, 36c, 36d and the outer peripheral partition wall 37, and the partition wall. 36c, 36d, 36e, 36f, 36g and a substantially inverted U-shaped passage 39b formed by the outer peripheral partition wall 37. Is hot water discharge port 31b is formed in the end of the passage 39 b.
[0023]
Further, in this passage 27 (2) , the forward passage trap passage portion 26 (2) is formed by the passage 39a, the partition walls 36d, 36e, 36f, 36g which are a part of the passage 39b, and the outer peripheral partition wall 37. It is a place consisting of the passage portion 39c.
[0024]
The passage 29 (2) is a substantially inverted U-shaped passage formed by the partition walls 36b, 36e, 36h and the outer peripheral partition wall 37, and a hot water return port is provided at the end of the passage 29 (2). 32b is formed.
[0025]
In this passage 29 (2) , the return passage trap passage portion 28 (2) is a portion of the passage portion 40 a formed by the partition walls 36 b and 36 h and the outer peripheral partition wall 37.
[0026]
The passage dividing intermediate member 20 is formed with an intermediate member opening 42 near the partition wall 30d of the substantially U-shaped passage 39a of the passage 27 (2) . Further, an intermediate member opening 43 is formed near the partition wall 30d of the substantially inverted U-shaped passage 39b. An intermediate member opening 44 is formed near the partition wall 36b of the substantially inverted U-shaped passage 29 (2) .
[0027]
Further, as shown in FIG. 9, fitting recesses formed on the upper end surfaces of the partition walls (see FIGS. 3 to 5) of the passage division main body 19 are formed on the upper end surfaces of the partition walls and the outer peripheral partition wall 37. Convex portions 41 to be fitted to 33 are respectively formed. A plurality of recesses 46 are formed on the outer surface side 45 of the passage dividing intermediate member 20 so as to be able to be fitted to a passage dividing member 21 described later.
[0028]
Next, as shown in FIGS. 11 to 13, the passage dividing member 21 forms a cylindrical portion 47 that can be fitted into the cylindrical body 10 of the bathtub mounting bracket 2 at the center, and a passage at one end of the cylindrical portion 47. A branch portion 52 is formed.
[0029]
On the inner surface side 54 of the passage branching portion 52, there is a passage division intermediate on the outer periphery of the central through passage 48 b via the intermediate member opening 42, the intermediate member opening 43, and the intermediate member opening 44 (see FIG. 7). Communicating with the forward trap passage 26 (3) communicating with the forward trap passage 26 (2) of the member 20 (see FIG. 8 ) and the return trap passage 28 (2) of the passage splitting intermediate member 20 The return passage trap passage portion 28 (3) is formed by the partition walls 49 and 50 and the outer peripheral wall 51, respectively. A dividing member opening 53 is formed near the partition wall 49 of the passage 28 (3) of the passage branching portion 52.
[0030]
In addition, in the upper end surface of the cylindrical body portion 47, the partition walls 49 and 50, and the outer peripheral wall 51 on the inner surface side 54 of the passage branching portion 52, each concave portion 46 (see FIG. 9), a fitting convex portion 55 is formed at a position where it can be fitted.
[0031]
The passage division main body 19, the passage division intermediate member 20, and the passage division member 21 configured as described above are composed of an inner surface side 22 of the passage division main body 19 and an inner surface side of the passage division intermediate member 20 as shown in FIGS. 14 to 16. 35, the hot water outlet 31 a and the hot water return port 32 a of the passage division main body 19 and the hot water discharge port 31 b and the hot water return port 32 b of the passage division intermediate member 20 are matched, and the fitting recess of the passage division main body 19 33 and the fitting convex part 54 of the channel | path division | segmentation intermediate member 20 are fitted and combined. Further, the fitting convex portion 55 on the inner surface side 54 of the passage dividing member 21 is fitted and coupled to the fitting concave portion 46 on the outer surface side 45 of the passage dividing intermediate member 20. In this way, the hot water supply passage dividing tool 4 is assembled by integrally combining the passage division main body 19, the passage division intermediate member 20, and the passage division member 21.
[0032]
At this time, as shown in FIGS. 17 to 18, the intermediate member opening 42 of the passage dividing intermediate member 20 is configured to have the forward trap passage portion 26 (1) partitioned by the partition walls 30 a, 30 c, and 30 d of the passage dividing main body 19. The intermediate member opening 43 is located in the passage portion 27c partitioned by the partition walls 30e, 30g, 30d, and 30f of the passage division main body 19. Further, the intermediate member opening 44 is located in the partition wall 30b, 30h and the outer circumferential partition wall 3 4 returns partitioned by passage trap passage 28 of the passage divided body 19 (1).
[0033]
The intermediate member opening 42 and the intermediate member opening 43 are positioned in the forward trap passage 26 (3) of the passage dividing member 21 provided on the outer surface 45. Further, the intermediate member opening 44 is positioned in the return passage trap passage portion 28 (3) of the passage dividing member 21 provided on the outer surface side 45.
[0034]
Further, the divided member opening 53 of the passage dividing member 21 communicates with the passage 18 of the bathtub sandwiching tool 3 and communicates with the outer peripheral passage 6 b of the bathtub mounting bracket 2 through the passage 18.
[0035]
Thus, by forming the hot water supply passage divider 4 by combining the passage division main body 19, the passage division intermediate member 20, and the passage division member 21, the forward passage trap passage is provided inside the hot water supply passage divider 4 as described above. There is a trap passage portion that is circulated in a three-dimensional direction, which includes the portions 26 (1) , 26 (2) , 26 (3) and the return passage trap passage portions 28 (1) , 28 (2) , 28 (3). It is configured.
[0036]
Here, referring to FIGS. 17 and 18, the flow of the hot water forward path (shown by a solid line) and the return path (shown by a broken line) in the hot water supply passage dividing tool 4 will be described. First, the hot water that has flowed in from the through passage 48b of the passage dividing member 21 as an outward path of hot water flows into the central portion of the passage dividing main body 19 (see FIG. 17) through the through passage 48b of the passage dividing intermediate member 20, and passes through the passage dividing main body. 19 (and the passage splitting intermediate member 20) of the outward trap passage 26 (1) and (2) of the passage splitting intermediate member 20 passes through the intermediate member opening 42 of the passage splitting intermediate member 20. enters the outward trap passage 26 of the 21 (3), the outward trap passage 26 from (3) again through the intermediate member opening 43 of the passage divided intermediate member 20 passages divided body 19 (and the passage divided intermediate member 20) The outward trap passage portion 26 having a substantially inverted U shape (2) is discharged from the hot water discharge port 21 into the bathtub through (1) .
[0037]
On the other hand, as shown by a broken line, the hot water in the bathtub that has flowed in from the hot water return port 32 (see FIG. 17) of the passage division main body 19 (and the passage division intermediate member 20) flows into the passage division main body 19 (and the passage division intermediate member 20). ) Through the substantially reverse U-shaped return passage trap passage portion 28 (1) and (2) (see FIG. 18), from the intermediate member opening 44 of the passage division intermediate member 20 for the return passage of the passage division member 21 enters the trap passage 28 (3), the return path for the trap passage 28 (3) within the through and dividing member opening 53 from the bath clamping device 3 tub mounting bracket through the passage 18 (see FIG. 1) The outer peripheral passage 6b and the connecting pipe 12 are returned to the bath (not shown).
[0038]
As shown in FIG. 2, a removable filter cap 5 is fitted to the outer surface side 56 of the passage dividing main body 19 of the hot water supply passage dividing tool 4 configured as described above. Filters 58 are respectively provided at the front face of the filter cap 5 and at the positions of the openings 24 and 25 of the passage division main body 19.
[0039]
The bathtub hot-water supply circulation connector 1 is provided on a side wall (not shown) having a through-hole formed in the bathtub, and a bath-pump-side circulation pump (not shown) is connected to the connection pipe 11 of the bathtub hot-water supply circulation connector 1. ), And a return pipe connected to a circulation pump (not shown) on the side of the bath tub is connected to the connection pipe 12 of the hot water circulation connector 1 for a bathtub. Fill the bathtub with water and operate the circulation pump to circulate the water (or hot water) and bathe the bath (water) in a bath pot (not shown).
[0040]
In addition, when there is a drop in the installation location between the bathtub and the bathtub, the hot water does not completely escape from the passage of the hot water supply circulation connector 1 for the bathtub due to the strong siphon phenomenon when the hot water in the bathtub is pulled out. Each of the forward passage trap passage portions 26 (1) , 26 (2) , 26 (3 ) formed in the three-dimensional direction of the hot water supply passage dividing tool 4 including the passage division main body 19, the passage division intermediate member 20, and the passage division member 21. ) And the trap passage portions 28 (1) , 28 (2) , and 28 (3) for the return paths ( indicated by the thick lines of the hot water flow shown in FIGS. 17 and 18). Therefore, when the bath is filled again with hot water, the hot water accumulated in the trap passages can be immediately activated as a priming water even when the circulation pump on the side of the bath is operated.
[0041]
It should be noted that the hot water forward passage and the return passage for the hot water supply / circulation connector for bathtub 1 described above may be used in reverse. In this case, the flow of hot water on the forward path side and the return path side is reversed.
[0042]
【The invention's effect】
As described above, in the hot water supply circulation connector for bathtubs of the present invention, the outward passage trap passage portion and the hot water return port in the passage communicating with the hot water discharge port of the hot water passage dividing tool and the central passage or the outer peripheral passage of the bathtub mounting bracket. And a return passage trap passage portion in the passage communicating with the outer peripheral passage or the central passage of the bathtub mounting bracket so as to go around in the three-dimensional direction inside the hot water supply passage divider, respectively. Even if the bathtub and bath tub are installed separately on the upper and lower floors in the two-story and three-story houses as well as the built houses, the trap passage section for the outward trip and the return path when the hot water in the bathtub is drained The hot water present in the trap passage does not escape due to the siphon phenomenon, and even when the bath tub circulation pump is operated to refill the bath with hot water again, Without even entering the air in the passages of the ingredients, burning it can be performed to follow the circulation pump with working smoothly.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a hot water supply and circulation connector for bathtubs according to the present invention.
FIG. 2 is a front view of a passage division main body according to the present invention.
FIG. 3 is a rear view of a passage division main body according to the present invention.
4 is a cross-sectional view taken along arrow AA in FIG. 3;
5 is a cross-sectional view taken along the line BB in FIG. 3;
6 is a cross-sectional view taken along the line CC in FIG. 3;
FIG. 7 is a rear view of a passage dividing intermediate member according to the present invention.
FIG. 8 is a front view of a passage dividing intermediate member according to the present invention.
9 is a cross-sectional view taken along the line DD in FIG. 8. FIG.
FIG. 10 is a side view of a passage dividing intermediate member according to the present invention.
FIG. 11 is a rear view of the passage dividing member according to the present invention.
FIG. 12 is a front view of a passage dividing member according to the present invention.
FIG. 13 is a longitudinal sectional view of a passage dividing member according to the present invention.
FIG. 14 is a longitudinal sectional view of a hot water supply passage divider according to the present invention.
FIG. 15 is a front view of a hot water supply passage divider according to the present invention.
FIG. 16 is a bottom view of a hot water supply passage divider according to the present invention.
FIG. 17 is an explanatory view showing the flow of hot water in the hot water supply passage dividing tool as viewed from the direction of the passage dividing member according to the present invention.
FIG. 18 is an explanatory view showing the flow of hot water in the hot water supply passage divider as seen from the direction of the passage division main body according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot-water supply circulation connection tool for bathtubs 2 Bath-tubing attachment metal fittings 3 Bath-tubing attachment tool 4 Hot-water supply passage division tool 5 Filter cap 6a Central passage 6b Outer peripheral passage
19 Path division body
20 Passage division intermediate member
21 passage dividing member 26 (1) , 26 (2) , 26 (3) forward passage trap passage portion 28 (1) , 28 (2) , 28 (3) return passage trap passage portion 31a, 31b hot water discharge port 32a , 32b Hot water return port

Claims

A bathtub mounting bracket that is internally divided into a central passage and an outer peripheral passage and that connects a connecting pipe that communicates with the central passage and a connecting pipe that communicates with the outer peripheral passage, and can be connected to the bathtub mounting bracket and A bathtub sandwiching tool having a passage communicating with the passage formed therein, and a cylindrical body that is inserted into the passage of the bathtub sandwiching tool and can be fitted to communicate with the central passage of the bathtub mounting bracket are formed . And a hot water supply passage dividing tool which forms a passage communicating with the outer peripheral passage of the bathtub mounting bracket through the passage of the bathtub sandwiching tool outside the cylindrical body, and forms a hot water discharge port and a hot water return port; In the hot water circulation connecting tool for bathtubs, comprising a filter cap that can be detachably provided on the front surface of the hot water passage dividing tool,
The hot water passage dividing tool includes a passage dividing main body, a passage dividing intermediate member, and a passage dividing member, and a hot water discharge port and a hot water return port are formed at predetermined locations where the passage dividing main body and the passage dividing intermediate member face each other. The passage dividing main body, the passage dividing intermediate member, and the passage dividing member are engaged with each other in this order and combined,
Further, a passage split body communicating with the hot water outlet of the hot water supply passage divider and the central passage or the outer peripheral passage of the bathtub mounting bracket , a passage split intermediate member, and a forward trap that communicates with each other in the passage split member Each passage part is formed,
And a passage dividing main body, a passage dividing intermediate member communicating with the hot water return port of the hot water supply passage dividing tool and the outer peripheral passage or the central passage of the bathtub mounting bracket, and a return passage trap passage communicating with each other of the passage dividing member. The hot-water supply circulation connection tool for bathtubs characterized by each part being formed .