JP4095434B2

JP4095434B2 - Water purifier

Info

Publication number: JP4095434B2
Application number: JP2002377493A
Authority: JP
Inventors: 美江谷崎; 仁史高山; 昌彦種池
Original assignee: Mitsubishi Chemical Corp; Mitsubishi Rayon Co Ltd
Current assignee: Mitsubishi Chemical Corp; Mitsubishi Rayon Co Ltd
Priority date: 2002-12-26
Filing date: 2002-12-26
Publication date: 2008-06-04
Anticipated expiration: 2022-12-26
Also published as: JP2004202446A

Description

【０００１】
【発明の属する技術分野】
本発明は、水道水やその他の原水中に含まれる塩素や臭気原因物質、有害物質等を除去することにより、おいしく安全な水を供給するための浄水器に関する。
【０００２】
【従来の技術】
安全な水を供給するために、水道水には殺菌用の塩素添加が義務づけられている。そのため、水道水が雑菌により汚染される懸念は少ないが、カルキ臭により水の味は損なわれてしまう。また、この塩素と水道水中に含まれるフミン質などの有機物質とが反応することにより、発ガン性を有するトリハロメタンが水道水中に生成することも確認されている。
【０００３】
また、近年の河川、湖沼の汚染等により、これらを原水とする水道水中には、２−メチルイソボルネオールのようなカビ臭原因物質が微量成分として含まれていることも確認されている。これらの水の味を損ねる物質、有害物質を除去するための浄水器が広く使用されている。
【０００４】
浄水器は様々なタイプがあり、使用者の目的、設置環境に応じて選択されており、蛇口の先端に取り付ける蛇口直結タイプ、流し横スペースに据え付ける据え置きタイプ、シンク下空間を利用して、浄水部を設置し、専用の水栓に接続するアンダーシンクタイプ等が使用されている。
【０００５】
浄水器は、一般家庭のみならず、飲食店等における業務用途での利用も増えて来ている。業務用途に使用される場合、浄水器の設置場所、設置目的は非常に多岐にわたり、調理用途全般はもちろん、炊飯用途、製氷器等の専用用途でも使用される。このような業務用途における利用では、各種調理装置の手前への設置や、調理場所への邪魔にならない効率的な設置が望まれることから、浄水器と浄水出口の間にバルブを設ける先止め方式で、水道配管中に浄水器を設置することが求められる。
【０００６】
先止め方式の設置では、浄水器に常時水圧がかかることになり、浄水器自体に高い強度が必要とされる。このため、濾材カートリッジを取替え可能としたステンレス製の容器を採用した浄水器が提案されている（例えば、特許文献１、あるいは特許文献２参照）。
【０００７】
【特許文献１】
実公平８−１０４１７号公報
【特許文献２】
特開２００１−２２４９１２号公報
【０００８】
【発明が解決しようとする課題】
従来の、ステンレス製の容器を採用した浄水器の場合、浄水器上部、蓋体に設けられる原水流入口及び浄水流出口は、接続配管根元が蓋体に溶接された構造となっている場合が多い。しかしながら、この接続配管根元部は、長期の使用に伴う加圧の繰り返しにより、最も負荷を受ける箇所であり、高水圧での使用、あるいは高頻度での使用により接続管と蓋体との溶接部分に亀裂等を発生するおそれが懸念されていた。
【０００９】
このような高負荷を繰り返し受ける出入口接続管根元部の強度を確保する構造としては、出入口接続管根元部を肉厚構造とすることが考えられる。肉厚構造としては、蓋体において出入口接続管を溶接する部分を設計上肉厚としておく構造、蓋体内面側の接続配管に接する部分に補強部材を挿入した構造、あるいは、蓋体上面側に外付けで補強部材を挿入する構造等が考えられる。
【００１０】
しかしながら、蓋体を肉厚設計とする構造は、蓋体の成型加工が難しくなると同時に接続管溶接面積が大きくなる為に溶接加工も難しくなり、溶接方法次第では強度向上が望めないばかりか、コストアップに繋がり好ましくない。
【００１１】
一方、蓋体内面側に補強部材を挿入する構造においても、複雑な形状部への加工となることから、溶接方法次第では強度向上が望めないまま、コストアップに繋がり、好ましくない。
【００１２】
そこで、本発明は、コストアップを伴わずに、高圧での繰り返し使用時においても高い強度を有する浄水器を提供することを目的とする。
【００１３】
【課題を解決するための手段】
上記目的を達成するため本発明の浄水器は、内部に濾材カートリッジを収容し、原水入水接続管及び浄水流出接続管が設けられた容器と、厚肉部を有し、かつ、該厚肉部において厚み方向へ原水入水接続管を挿通可能な孔及び浄水流出接続管を挿通可能な孔が形成された補強材と、原水入水接続管及び浄水流出接続管のそれぞれに螺合する締め付けナットと、を有する浄水器において、補強材が、厚肉部において締め付けナットと当接することにより、各孔を通じて原水入水接続管及び浄水流出接続管の両方に差し込まれて固定されていることを特徴とする。
【００１４】
上記のとおりの本発明の浄水器は、厚肉部を有する補強材により原水入水接続管及び浄水流出接続管の根元部を補強することで、繰り返しかかる負荷に対する耐圧性および耐久性を高めている。
【００１５】
また、本発明の浄水器は、補強材が、少なくとも２以上の厚肉部を有し、原水入水接続管を挿通可能な孔及び該孔に対応する補強材と締め付けナットとの当接部、並びに、浄水流出接続管を挿通可能な孔及び該孔に対応する補強材と締め付けナットとの当接部は、異なる厚肉部に対して各々形成されているものであってもよい。
また、本発明の浄水器は、原水入水接続管を挿通可能な孔、浄水流出接続管を挿通可能な孔、及び、該各孔それぞれに対応する各補強材と締め付けナットとの当接部は、共に、一の厚肉部に形成されているものであってもよい。
【００１７】
また、補強材が、浄水器を設置するための取付部を備えているものであってもよい。この場合、補強材と取付具とが一体的な構造となっているため、部品点数および製造工程を増やすことなく浄水器を製造することができる。
【００１８】
また、本発明の浄水器は、容器が、濾材カートリッジを収容する有底筒状のケーシング本体と、ケーシング本体の上端開口を封鎖する蓋体とを有し、蓋体に原水入水接続管及び浄水流出接続管が取り付けられているものであってもよい。
【００１９】
【発明の実施の形態】
次に、本発明の実施の形態について図面を参照して説明する。
（参考例）
図１は、本参考例の浄水器の全体断面図であり、図２は、浄水器上部、蓋体近傍を拡大して示した模式断面図である。
【００２０】
本参考例の浄水器は、本体容器１と蓋体２とが締付けバンド３により組み合わせて締め付けられており、本体容器１内に、蓋体２のカートリッジ装着部１０に水密に取り付けられた浄水カートリッジ９を収納する構造を有するものであり、原水が、蓋体２に取り付けられた原水入水接続管４から本体容器１内へと導入され、浄水カートリッジ９内に流れ込み、浄水カートリッジ９内の濾過材により浄化されて浄水として、蓋体２に取り付けられた浄水流出接続管５より出水されるものである。
【００２１】
以下に、本参考例の浄水器の蓋体２に取り付けられた原水入水接続管４および浄水流出接続管５の取付部、すなわち、根元部分１１の補強構造の詳細について説明する。
【００２２】
防錆効果を有するステンレス合金等の金属からなり厚さｔ₁の蓋体２には、本体容器１内に原水を導入する原水入水接続管４と、浄水カートリッジ９により浄化された浄水が出水される浄水流出接続管５とが、各接続管の根元部分１１で蓋体２の上面に溶接により取り付けられている。原水入水接続管４および浄水流出接続管５もステンレス合金等の金属からなる。
【００２３】
本参考例の浄水器はプレート状の取付具６によって、壁面に固定可能な構成となっている。厚さｔ₂の取付具６には、原水入水接続管４を差し込む孔６ａと、浄水流出接続管５を差し込む孔６ｂとが形成されており、取付具６は、これら孔６ａ、６ｂのそれぞれに原水入水接続管４及び浄水流出接続管５を差し込むことで蓋体２に対して位置決めされている。
【００２４】
取付具６にはねじ留め用穴６ｃが形成されており、浄水器を目的とする設置場所に任意の方向で取り付けられる。この際、取付具６の向きは、図１に示すように、ねじ留め用穴６ｃが形成された部分を下向きにして蓋体２に取り付けるものであってもよいが、これに限定されるものではなく、上下逆方向にして吊り下げ状態で蓋体２に取り付けるものであってもよい。さらに、浄水器本体の設置方向についても特に限定されず、設置場所に応じて縦配置設置、横配置設置等任意に選定できる。
【００２５】
この取付具６上には厚さｔ₃の補強プレート７がさらに配置されている。この補強プレート７にも、取付具６と同様に、原水入水接続管４を差し込む孔７ａと、浄水流出接続管５を差し込む孔７ｂとが形成されており、位置決めされた取付具６の上から、孔７ａ、７ｂのそれぞれに原水入水接続管４及び浄水流出接続管５を差し込むことで蓋体２に対して位置決めされている。
【００２６】
補強プレート７に用いられる材質は、目的とする補強効果を、補強プレート７の破損等無く達成できるものであれば、特に限定されない。ただし、防錆効果を有する材質を使用することが望まれるので、具体的には、ステンレス合金やアルミニウム合金などの金属、フィラー強化プラスチック、繊維強化プラスチックのいずれかからなると強度が高く好ましい。
【００２７】
このようにして、位置決めされた取付具６および補強プレート７の双方を厚さｔ₄の締付けナット８により同時に、かつ確実に締め付け固定することで、蓋体２、取付具６、および補強プレート７が一体の構成となる。これにより、原水入水接続管４及び浄水流出接続管５の根元部分１１近傍の厚さは、蓋体２の厚さｔ₁に対して、取付具６の厚さｔ₂、補強プレート７の厚さｔ₃、および締付けナット８の厚さｔ₄の分だけ肉厚な構造となり、耐圧性および耐久性が高められることとなる。
【００２８】
締め付けナット８は、各接続管に設けられたネジに合わせて、取付具６および補強プレート７を各接続管の各根元部分１１に確実に押さえつけられるものであれば、特に限定されない。補強効果を長期に渡って強固に維持するため、バネ座金やＣリングを併用する形としてもよい。
【００２９】
以上説明したように本参考例の浄水器は、補強プレート７を締付けナット８で締め付け固定することで原水入水接続管４および浄水流出接続管５の根元部分１１近傍を肉厚構造としている。このような構造を有する本参考例の浄水器は、根元部分１１近傍の耐圧性および耐久性が高められているため、浄水器に常時水圧がかかる先止め方式の浄水器として特に適している。
【００３０】
また、本参考例における、この肉厚構造は、実質的には補強プレート７を締付けナット８で締め付け固定しただけで得られるため、蓋体において原水入水接続管及び浄水流出接続管を溶接する部分を設計上肉厚としておく構造、蓋体内面側の接続配管に接する部分に補強部材を挿入した構造、あるいは、蓋体上面側に外付けで補強部材を挿入する構造等のように困難な溶接加工、あるいはコストアップを伴うこともない。
【００３１】
さらに、取付具６および補強プレート７は、原水入水接続管４及び浄水流出接続管５を差し込むだけで位置決めがされ、それぞれの締め付け固定も締付けナット８により同時に行うことができるため、製造工程が増すこともない。
【００３２】
なお、蓋体２に取り付けられた原水入水接続管４及び浄水流出接続管５の根元部分１１の近傍の肉厚構造は、蓋体外周部より肉厚構造となっており、コストアップを伴うことなく耐圧耐久性が高いものとなっていれば特に限定されない。
（第１の実施形態）
図３に、本実施形態の浄水器の、浄水器上部、蓋体近傍を拡大して示した模式断面図を示す。なお、以下の説明において、参考例と同じ部材については参考例で用いたものと同じ符号を用いて説明する。また、本実施形態の浄水器は、以下に説明する補強プレート１７の形状が異なる以外は、参考例に示した浄水器と同じ構成であるため、他の部分の詳細の説明は省略する。
【００３３】
本実施形態の浄水器の補強プレート１７は、取付具６に当接する厚さｔ₃の取付具当接部１７ａと締付けナット８に当接する厚さｔ₃’のナット当接部１７ｂを有する。すなわち、補強プレート１７は、原水入水接続管４及び浄水流出接続管５の根元部分１１の周囲の厚みを特に厚くしたものである。これにより、原水入水接続管４及び浄水流出接続管５の根元部分１１近傍の厚さは、蓋体２の厚さｔ₁に対して、取付具６の厚さｔ₂、補強プレート７の、取付具当接部１７ａの厚さｔ₃とナット当接部１７ｂの厚さｔ₃’、および締付けナット８の厚さｔ₄の分だけ肉厚な構造となり、耐圧性および耐久性が高められることとなる。なお、補強プレート１７で厚みに段差を設けている入角部は直角形状ではなく、ＲやＣ面取りを付加した形とするとより好ましい。
【００３４】
以上説明したように、本実施形態の浄水器は、コストアップを伴うことなく、原水入水接続管４および浄水流出接続管５の根元部部１１の耐圧性および耐久性を高めることができるので、浄水器に常時水圧がかかる先止め方式の浄水器を安価に提供することができる。
（第２の実施形態）
図４に、本実施形態の浄水器の、浄水器上部、蓋体近傍を拡大して示した模式断面図を示す。なお、本実施形態の説明においても、参考例と同じ部材については参考例で用いたものと同じ符号を用いて説明する。また、本実施形態の浄水器も、補強プレート２７の構成が異なる以外は、参考例に示した浄水器と同じ構成であるため、他の部分の詳細の説明は省略する。
【００３５】
本実施形態の浄水器の補強プレート２７は、蓋体２に当接する厚さｔ₃の取付具当接部２７ａと締付けナット８に当接する厚さｔ₃’のナット当接部２７ｂと、浄水器本体を設置するために用いる不図示のねじ留め用穴が形成された取付部２７ｃとを有する構成となっており、第１および第２の実施形態における取付具６としての機能を併せ持つものとなっている。
【００３６】
すなわち、補強プレート２７は、原水入水接続管４及び浄水流出接続管５の根元部分１１近傍の厚さが、蓋体２の厚さｔ₁に対して、補強プレート７の、取付具当接部１７ａの厚さｔ₃とナット当接部１７ｂの厚さｔ₃’、および締付けナット８の厚さｔ₄の分だけ肉厚な構造となり、耐圧性および耐久性が高められることとなるとともに、浄水器を設置場所に取り付ける取付具としての機能も併せ持つことで、部品点数を減らすことができる構成となっている。
【００３７】
また、本実施形態の補強プレート２７は、原水入水接続管４と浄水流出接続管５とが離れて配置されている場合には、補強プレート２７の、原水入水接続管４と浄水流出接続管５との間に位置する中間部２７ｄの肉厚ｔ₃＋ｔ₃’（図４参照）を、肉厚ｔ₃（図５参照）とするものであってもよい。これにより、肉厚構造を要求される原水入水接続管４と浄水流出接続管５の取付部近傍のみを肉厚構造とすることができ、重量増加を抑えることができる。
【００３８】
なお、補強プレート２７で厚みに段差を設けている入角部は直角形状ではなく、ＲやＣ面取りを付加した形とするとより好ましい。
【００３９】
以上説明したように、本実施形態の浄水器も、第１およびの実施形態と同様に、コストアップを伴うことなく、原水入水接続管４および浄水流出接続管５の根元部分１１の耐圧性および耐久性が高めることができるので、浄水器に常時水圧がかかる先止め方式の浄水器を安価に提供することができる。
（実施例）
以下、実施例を基に本発明をさらに詳細に説明する。
【００４０】
浄水器の全体構成は、図１に示すとおりのものであり、実施例１としては、浄水器上部構造が図２に示す、取付具６および補強プレート７を締付けナット８で締め付け固定した構成のものを用意し、実施例２としては、浄水器上部構造が図４に示す、取付具が一体的に設けられた補強プレート２７を締付けナット８で締め付け固定した構成のものを用意した。
【００４１】
さらに、比較例として、図２において、補強プレート７及び締め付けナット８を外したものを用意した。
【００４２】
なお、実施例１、実施例２および比較例の浄水器の全体構成は、いずれも図１に示すとおりのものである。
【００４３】
浄水器サンプルを、水温２５℃水槽中に投入し、０．７５ＭＰａでの加圧、続いて開放を１０秒間隔で繰り返す耐圧耐久試験を実施した。結果を表１に示す。
【００４４】
【表１】

【００４５】
以上の結果より、各接続管の根元部分近傍を肉厚構造とする補強プレートの挿入により繰り返し耐圧強度が向上していることが分かる。
【００４６】
【発明の効果】
以上説明したように本発明によれば、補強材における他の部位よりも肉厚なナット当接部を有する補強材により原水入水接続管及び浄水流出接続管の根元部を補強とすることで、長期に渡る使用時の耐圧性を向上させることができる。
【図面の簡単な説明】
【図１】本発明の参考例における、浄水器の全体断面図である。
【図２】本発明の参考例の浄水器上部、蓋体近傍を拡大して示した模式断面図である。
【図３】本発明の第１の実施形態の浄水器上部、蓋体近傍を拡大して示した模式断面図である。
【図４】本発明の第２の実施形態の浄水器上部、蓋体近傍を拡大して示した模式断面図である。
【図５】本発明の第２の実施形態において、原水入水接続管と浄水流出接続管とが離れて配置されている構成に対して好適な補強プレートの構成を示す浄水器上部、蓋体近傍の模式断面図である。
【符号の説明】
１本体容器
２蓋体
３締付けバンド
４原水入水接続管
５浄水流出接続管
６取付具
６ａ、６ｂ、７ａ、７ｂ孔
６ｃねじ留め用穴
７、１７、２７補強プレート
８締付けナット
９浄水カートリッジ
１０カートリッジ装着部
１１根元部分
１７ｂナット当接部
１７ａ取付具当接部
２７ａ取付具当接部
２７ｂナット当接部
２７ｃ取付部
２７ｄ中間部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water purifier for supplying delicious and safe water by removing chlorine, odor-causing substances, harmful substances and the like contained in tap water and other raw water.
[0002]
[Prior art]
In order to supply safe water, tap water is obliged to add chlorine for sterilization. For this reason, there is little concern that tap water will be contaminated by various bacteria, but the taste of water will be impaired by the odor of lime. It has also been confirmed that carcinogenic trihalomethanes are produced in tap water by reacting chlorine with organic substances such as humic substances contained in tap water.
[0003]
In addition, due to pollution of rivers and lakes in recent years, it has also been confirmed that tap water that uses these as raw water contains a mold odor-causing substance such as 2-methylisoborneol as a trace component. Water purifiers for removing these water-damaging substances and harmful substances are widely used.
[0004]
There are various types of water purifiers, and they are selected according to the purpose of the user and the installation environment. The water purifier is directly connected to the faucet attached to the tip of the faucet, the stationary type installed in the side of the sink, and the space below the sink. An undersink type, etc., that installs a section and connects to a dedicated faucet is used.
[0005]
Water purifiers are used not only for general households but also for business purposes in restaurants and the like. When used for business purposes, the installation location and purpose of the water purifier are very diverse, and it is used not only for cooking purposes but also for special purposes such as rice cooking and ice making. For use in such business applications, it is desirable to install various cooking devices in front of them and to install them efficiently between the water purifier and the water purifier outlet, since efficient installation that does not interfere with the cooking location is desired. Therefore, it is required to install a water purifier in the water pipe.
[0006]
In the installation of the first stop method, water pressure is always applied to the water purifier, and the water purifier itself needs to have high strength. For this reason, the water purifier which employ | adopted the stainless steel container which enabled replacement | exchange of the filter cartridge is proposed (for example, refer patent document 1 or patent document 2).
[0007]
[Patent Document 1]
Japanese Utility Model Publication No. 8-10417 [Patent Document 2]
Japanese Patent Laid-Open No. 2001-224912
[Problems to be solved by the invention]
In the case of a conventional water purifier employing a stainless steel container, the upper part of the water purifier, the raw water inlet and the purified water outlet provided on the lid may have a structure in which the base of the connection pipe is welded to the lid. Many. However, this connection pipe root is the place that receives the most load due to repeated pressurization associated with long-term use, and the welded part between the connection pipe and the lid when used at high water pressure or frequently. There was a concern about the possibility of cracks.
[0009]
As a structure for ensuring the strength of the entrance / exit connection pipe root that repeatedly receives such a high load, it is conceivable that the entrance / exit connection pipe root has a thick structure. Thickness structure includes a structure in which the portion where the inlet / outlet connection pipe is welded in the lid is designed to be thick, a structure in which a reinforcing member is inserted into a portion in contact with the connection pipe on the inner surface of the lid, or on the upper surface of the lid A structure in which a reinforcing member is inserted externally can be considered.
[0010]
However, the structure with a thick lid design makes it difficult to mold the lid, and at the same time increases the weld area of the connecting pipe, making welding difficult. It leads to up and is not preferable.
[0011]
On the other hand, the structure in which the reinforcing member is inserted on the inner surface side of the lid body is not preferable because it is processed into a complicated shape portion, and depending on the welding method, the strength cannot be improved and the cost is increased.
[0012]
Then, an object of this invention is to provide the water purifier which has high intensity | strength also at the time of the repeated use by a high voltage | pressure without accompanying a cost increase.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the water purifier of the present invention contains a filter medium cartridge therein, a container provided with a raw water inlet connection pipe and a purified water outflow connection pipe, a thick part, and the thick part. A reinforcing material in which a hole through which the raw water inlet connecting pipe can be inserted in the thickness direction and a hole through which the purified water outlet connecting pipe can be inserted, and a tightening nut screwed into each of the raw water inlet connecting pipe and the purified water outlet connecting pipe , In the water purifier having the above structure, the reinforcing material is inserted into and fixed to both the raw water inlet connection pipe and the purified water outflow connection pipe through each hole by contacting the tightening nut in the thick part .
[0014]
The water purifier of the present invention as described above has improved pressure resistance and durability against repeated loads by reinforcing the base part of the raw water inlet connection pipe and the purified water outflow connection pipe with a reinforcing material having a thick part . .
[0015]
In the water purifier of the present invention, the reinforcing material has at least two or more thick portions , a hole through which the raw water inlet connecting pipe can be inserted, and a contact portion between the reinforcing material corresponding to the hole and the tightening nut, Further, the hole through which the purified water outflow connecting pipe can be inserted and the contact portion between the reinforcing material corresponding to the hole and the tightening nut may be formed for different thick portions .
Further, the water purifier of the present invention has a hole through which the raw water inlet connecting pipe can be inserted, a hole through which the purified water outflow connecting pipe can be inserted , and a contact portion between each reinforcing material corresponding to each of the holes and the tightening nut. Both of them may be formed in one thick part .
[0017]
Moreover, the reinforcing material may be provided with an attachment portion for installing the water purifier. In this case, since the reinforcing member and the fixture have an integral structure, the water purifier can be manufactured without increasing the number of parts and the manufacturing process.
[0018]
Further, water purifier of the present invention, the container includes a bottomed cylindrical casing main body for accommodating the filter media cartridge, and a lid to seal the upper end opening of the casing body, the raw water entering water connecting pipe and purified water to the lid The outflow connection pipe may be attached.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
( Reference example )
FIG. 1 is an overall cross-sectional view of the water purifier of the present reference example , and FIG. 2 is an enlarged schematic cross-sectional view showing the upper portion of the water purifier and the vicinity of the lid.
[0020]
In the water purifier of this reference example , the main body container 1 and the lid body 2 are tightened in combination with the tightening band 3, and the water purification cartridge is watertightly attached to the cartridge mounting portion 10 of the lid body 2 in the main body container 1. 9, and raw water is introduced into the main body container 1 from the raw water inlet connection pipe 4 attached to the lid 2, flows into the water purification cartridge 9, and the filtering material in the water purification cartridge 9 is provided. The purified water is discharged from the purified water outflow connecting pipe 5 attached to the lid body 2 as purified water.
[0021]
Below, the detail of the reinforcement structure of the attachment part of the raw | natural water inflow connecting pipe 4 and the purified water outflow connecting pipe 5 attached to the cover body 2 of the water purifier of this reference example , ie, the root part 11, is demonstrated.
[0022]
The lid 2 having a thickness t ₁ and made of a metal such as a stainless alloy having a rust-preventing effect is drained with purified water purified by the raw water inlet connection pipe 4 for introducing the raw water into the main body container 1 and the purified water cartridge 9. The purified water outflow connecting pipe 5 is attached to the upper surface of the lid body 2 by welding at the root portion 11 of each connecting pipe. The raw water inlet connecting pipe 4 and the purified water outlet connecting pipe 5 are also made of a metal such as a stainless alloy.
[0023]
The water purifier of this reference example has a configuration that can be fixed to a wall surface by a plate-shaped fixture 6. A fixture 6 of thickness t ₂ has a hole 6a for inserting the raw water inlet connecting pipe 4 is formed with holes 6b inserting the purified water outlet connection pipe 5, fittings 6, each of these

holes

6a, 6b The raw water inlet connecting pipe 4 and the purified water outflow connecting pipe 5 are inserted into the lid body 2 so as to be positioned.
[0024]
A screw hole 6c is formed in the fixture 6, and the fixture 6 is attached in an arbitrary direction to an installation place intended for a water purifier. At this time, as shown in FIG. 1, the mounting tool 6 may be attached to the lid 2 with the portion where the screwing hole 6c is formed facing downward, but is not limited thereto. Instead, it may be attached to the lid 2 in a suspended state in the upside down direction. Furthermore, the installation direction of the water purifier main body is not particularly limited, and can be arbitrarily selected according to the installation location, such as vertical installation and horizontal installation.
[0025]
A reinforcing plate 7 having a thickness t ₃ is further disposed on the fixture 6. Similarly to the fixture 6, the reinforcing plate 7 is also formed with a hole 7 a for inserting the raw water inlet connecting pipe 4 and a hole 7 b for inserting the purified water outflow connecting pipe 5, and from above the positioned fixture 6. The raw water incoming water connecting pipe 4 and the purified water outflow connecting pipe 5 are inserted into the

holes

7a and 7b, respectively, so that they are positioned with respect to the lid body 2.
[0026]
The material used for the reinforcing plate 7 is not particularly limited as long as the target reinforcing effect can be achieved without damaging the reinforcing plate 7 or the like. However, since it is desired to use a material having a rust preventive effect, specifically, it is preferable that it is made of any one of metals such as a stainless alloy and an aluminum alloy, a filler reinforced plastic, and a fiber reinforced plastic.
[0027]
In this way, both the positioned fixture 6 and the reinforcing plate 7 are simultaneously and securely fastened and fixed by the fastening nut 8 having the thickness t ₄ , so that the lid 2, the fixture 6 and the reinforcing plate 7 are fixed. Is an integrated configuration. Thus, the thickness of the raw water inlet connecting pipe 4 and the purified water outflow connecting pipe 5 in the vicinity of the root portion 11 is the thickness t _{2 of} the fixture 6 and the thickness of the reinforcing plate 7 with respect to the thickness t ₁ of the lid 2. The thickness is increased by the thickness t ₃ and the thickness t ₄ of the tightening nut 8, and the pressure resistance and durability are improved.
[0028]
The fastening nut 8 is not particularly limited as long as it can reliably press the fixture 6 and the reinforcing plate 7 against each root portion 11 of each connecting pipe in accordance with the screw provided on each connecting pipe. In order to maintain the reinforcing effect firmly for a long time, a spring washer or a C-ring may be used in combination.
[0029]
As described above, the water purifier of the present reference example has a thick structure in the vicinity of the root portion 11 of the raw water inlet connection pipe 4 and the purified water outflow connection pipe 5 by fastening and fixing the reinforcing plate 7 with the fastening nut 8. The water purifier of this reference example having such a structure is particularly suitable as a first-stop type water purifier in which water pressure is constantly applied to the water purifier because the pressure resistance and durability in the vicinity of the root portion 11 are enhanced.
[0030]
In addition, since this thick structure in the present reference example can be obtained by simply fastening and fixing the reinforcing plate 7 with the tightening nut 8, the portion where the raw water inlet connection pipe and the purified water outflow connection pipe are welded to the lid. Is difficult to weld, such as a structure in which the wall is designed to be thick, a structure in which a reinforcing member is inserted into the connection pipe on the inner surface of the lid, or a structure in which a reinforcing member is inserted externally on the upper surface of the lid There is no processing or cost increase.
[0031]
Furthermore, the fixture 6 and the reinforcing plate 7 can be positioned simply by inserting the raw water inlet connection pipe 4 and the purified water outflow connection pipe 5, and can be tightened and fixed simultaneously by the tightening nut 8. There is nothing.
[0032]
In addition, the thickness structure in the vicinity of the base portion 11 of the raw water inlet connection pipe 4 and the purified water outflow connection pipe 5 attached to the lid body 2 is thicker than the outer peripheral portion of the lid body, resulting in an increase in cost. There is no particular limitation as long as the pressure durability is high.
(First Embodiment)
In FIG. 3, the schematic cross section which expanded and showed the water purifier upper part and the cover body vicinity of the water purifier of this embodiment is shown. In the following description, the same members as in Reference Example will be described using the same reference numerals as those used in Reference Example. Moreover, since the water purifier of this embodiment is the same structure as the water purifier shown to the reference example except that the shape of the reinforcement plate 17 demonstrated below differs, description of the detail of another part is abbreviate | omitted.
[0033]
The reinforcing plate 17 of the water purifier of the present embodiment has a fixture contact portion 17 a having a thickness t _{3 that} contacts the fixture 6 and a nut contact portion 17 b having a thickness t ₃ ′ that contacts the tightening nut 8. That is, the reinforcing plate 17 has a particularly large thickness around the root portion 11 of the raw water incoming water connecting pipe 4 and the purified water outflow connecting pipe 5. Accordingly, the thickness of the raw water inlet connecting pipe 4 and the purified water outflow connecting pipe 5 in the vicinity of the root portion 11 is the thickness t _{2 of} the fixture 6 and the thickness of the reinforcing plate 7 with respect to the thickness t ₁ of the lid 2. the thickness t ₃ of the thickness t ₃ and the nut contacting portion 17b of the fitting contact portion 17a ', and tightening will amount corresponding thick structure in the thickness t ₄ of the nut 8, pressure resistance and durability can be enhanced It will be. In addition, it is more preferable that the corner portion where the step is provided in the thickness of the reinforcing plate 17 is not a right-angled shape but a shape to which R or C chamfering is added.
[0034]
As described above, the water purifier of the present embodiment can increase the pressure resistance and durability of the root portion 11 of the raw water inlet connection pipe 4 and the purified water outflow connection pipe 5 without increasing costs. It is possible to provide an inexpensive water purifier that always applies water pressure to the water purifier.
(Second Embodiment)
In FIG. 4, the schematic cross section which expanded and showed the water purifier upper part and the lid vicinity of the water purifier of this embodiment is shown. Incidentally, in the description of this embodiment, the same member as the reference example will be described using the same reference numerals as those used in Reference Example. Moreover, since the water purifier of this embodiment is also the same structure as the water purifier shown to the reference example except the structure of the reinforcement plate 27 differing, description of the detail of another part is abbreviate | omitted.
[0035]
Reinforcing plate 27 of the water purifier of the present embodiment, the nut contacting portion 27b of the thickness t ₃ 'in contact with the nut 8 and tightening fixture abutting portion 27a of the thickness t ₃ in contact with the cover body 2, water purification And a mounting portion 27c formed with a screwing hole (not shown) used for installing the vessel main body, and also having a function as the mounting tool 6 in the first and second embodiments. It has become.
[0036]
That is, the reinforcing plate 27 has a fitting contact portion of the reinforcing plate 7 with respect to the thickness t ₁ of the lid body 2 in the vicinity of the base portion 11 of the raw water inlet connecting pipe 4 and the purified water outlet connecting pipe 5. 17a having a thickness of t ₃ and thickness t of the nut contacting portion 17b ₃ ', and fastened by the amount of the thickness t ₄ of the nut 8 becomes thick structure, it becomes possible to pressure resistance and durability is enhanced, By having a function as a fixture for attaching the water purifier to the installation location, the number of parts can be reduced.
[0037]
Moreover, when the raw | natural water inlet water connection pipe 4 and the purified water outflow connection pipe 5 are arrange | positioned apart, the reinforcement | strengthening plate 27 of this embodiment has the raw | natural water inlet water connection pipe 4 and the purified water outflow connection pipe 5 of the reinforcement plate 27. The thickness t ₃ + t ₃ ′ (see FIG. 4) of the intermediate portion 27d located between the two may be set to the thickness t ₃ (see FIG. 5). Thereby, only the attachment part vicinity of the raw | natural water inflow connection pipe 4 and the purified water outflow connection pipe 5 which require a thick structure can be made into a thick structure, and a weight increase can be suppressed.
[0038]
In addition, it is more preferable that the corner portion where the reinforcing plate 27 is provided with a step in thickness is not a right-angle shape but a shape with R or C chamfering added.
[0039]
As described above, the water purifier of the present embodiment is also resistant to the pressure resistance of the root portion 11 of the raw water input water connection pipe 4 and the purified water outflow connection pipe 5 without increasing the cost, as in the first and second embodiments. Since durability can be improved, a first-stop water purifier in which water pressure is always applied to the water purifier can be provided at low cost.
(Example)
Hereinafter, the present invention will be described in more detail based on examples.
[0040]
The overall configuration of the water purifier is as shown in FIG. 1, and in the first embodiment, the water purifier upper structure shown in FIG. 2 has a configuration in which the fixture 6 and the reinforcing plate 7 are fastened and fixed with a tightening nut 8. In Example 2, a water purifier superstructure shown in FIG. 4 was prepared by tightening and fixing a reinforcing plate 27 integrally provided with a fixture with a tightening nut 8.
[0041]
Further, as a comparative example, a structure in which the reinforcing plate 7 and the tightening nut 8 are removed in FIG. 2 was prepared.
[0042]
In addition, the whole structure of the water purifier of Example 1, Example 2, and a comparative example is as shown in FIG.
[0043]
The water purifier sample was put into a water bath at a water temperature of 25 ° C., and a pressure durability test was repeated in which pressurization at 0.75 MPa and subsequent release were repeated at 10 second intervals. The results are shown in Table 1.
[0044]
[Table 1]

[0045]
From the above results, it can be seen that the pressure resistance is repeatedly improved by inserting a reinforcing plate having a thick structure in the vicinity of the root portion of each connecting pipe.
[0046]
【The invention's effect】
As described above, according to the present invention, by reinforcing the base part of the raw water incoming water connection pipe and the purified water outflow connection pipe with the reinforcing material having a nut abutting portion thicker than other parts in the reinforcing material, The pressure resistance during long-term use can be improved.
[Brief description of the drawings]
FIG. 1 is an overall cross-sectional view of a water purifier in a reference example of the present invention.
FIG. 2 is an enlarged schematic cross-sectional view showing the upper part of the water purifier and the vicinity of the lid according to a reference example of the present invention.
FIG. 3 is an enlarged schematic cross-sectional view showing the upper portion of the water purifier and the vicinity of the lid according to the first embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view showing, in an enlarged manner, the upper portion of the water purifier and the vicinity of the lid according to the second embodiment of the present invention.
FIG. 5 shows the configuration of a reinforcing plate suitable for the configuration in which the raw water inlet connecting pipe and the purified water outflow connecting pipe are arranged apart from each other in the second embodiment of the present invention, the upper portion of the water purifier, and the vicinity of the lid FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body container 2 Lid body 3 Clamping band 4 Raw water inflow

connection pipe

5 Purified water outflow connection pipe 6 Attaching

tool

6a, 6b, 7a, 7b Hole

6c Screw hole

7, 17, 27 Reinforcement plate 8 Clamping nut 9 Water purification cartridge 10 Cartridge Mounting part 11 Root part 17b Nut abutting part 17a Mounting tool abutting part 27a Mounting tool abutting part 27b Nut abutting part 27c Mounting part 27d Intermediate part

Claims

A container in which a filter medium cartridge is housed, and a raw water input connection pipe and a purified water outflow connection pipe are provided;
A reinforcing material having a thick part, and a hole through which the raw water inlet connecting pipe can be inserted in the thickness direction in the thick part and a hole through which the purified water outflow connecting pipe can be inserted;
A tightening nut screwed into each of the raw water inlet connecting pipe and the purified water outlet connecting pipe ;
In a water purifier having
The water purifier is characterized in that the reinforcing member is inserted into and fixed to both the raw water inlet connecting pipe and the purified water outlet connecting pipe through each hole by contacting the tightening nut in the thick wall portion . .

The reinforcing material has at least two or more thick portions ,
The hole through which the raw water inlet connecting pipe can be inserted , the abutting portion between the reinforcing member corresponding to the hole and the tightening nut, the hole through which the purified water outflow connecting pipe can be inserted, and the hole corresponding to the hole. The water purifier according to claim 1, wherein a contact portion between the reinforcing material and the tightening nut is formed for each of the different thick portions .

Both the hole through which the raw water inlet connecting pipe can be inserted, the hole through which the purified water outflow connecting pipe can be inserted , and the abutting portions of the reinforcing members and the tightening nuts corresponding to the respective holes , The water purifier of Claim 1 currently formed in one thick part .

The reinforcing material, the raw water inlet connection pipe and the purified water outlet connecting pipe can be inserted holes are formed, are fastened by the fastening nut with fittings for installing a water purifier, claim 1 The water purifier according to any one of 3 .

The water purifier as described in any one of Claim 1 to 3 with which the said reinforcement material is provided with the attaching part for installing a water purifier.

The container has a bottomed cylindrical casing main body that accommodates the filter medium cartridge, and a lid that seals the upper end opening of the casing main body, and the raw water inlet connection pipe and the purified water outlet connection pipe are connected to the lid body. The water purifier according to any one of claims 1 to 5 , to which is attached.