JP2011143366A

JP2011143366A - Water purifier

Info

Publication number: JP2011143366A
Application number: JP2010006968A
Authority: JP
Inventors: Masahiko Taneike; 昌彦種池; Kengo Uchida; 賢吾内田
Original assignee: Mitsubishi Chemical Cleansui Corp; Joplax Co Ltd
Current assignee: Mitsubishi Chemical Cleansui Corp; Joplax Co Ltd
Priority date: 2010-01-15
Filing date: 2010-01-15
Publication date: 2011-07-28
Anticipated expiration: 2030-01-15
Also published as: JP5345560B2

Abstract

<P>PROBLEM TO BE SOLVED: To make a water purifier compact and increase the degree of freedom of design of the water purifier. <P>SOLUTION: A rotary valve 3 is configured to include a first raw water outlet hole and a second raw water outlet hole 19 so that their positions are shifted from each other in the axial direction and in the circumferential direction. A valve seat packing 25 is provided with a first communication hole and a second communication hole 27 connectable to the first raw water outlet hole and the second raw water outlet hole 19 of the rotary valve 3 so that the communication holes are arranged on a straight line and separated from each other. The first communication hole and the second communication hole 27 are disposed parallel to the center axis of the rotary valve 3 and disposed at a position different from that of the lowest point of the rotary valve 3. A body 4 is provided with a first raw water lead-out passage for leading the raw water discharged from the first communication hole of the valve seat packing 25 to a shower chamber installed in the lower part of the body 4 and a second raw water lead-out passage 36 for leading the raw water discharged from the second communication hole 27 of the valve seat packing 25 to a purifying raw water supply port 37 installed in the side part of the body 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、蛇口等に直接取り付けて使用可能なコンパクトタイプの浄水器に関するものである。 The present invention relates to a compact water purifier that can be used by directly attaching to a faucet or the like.

この種の浄水器には、切り換えレバー等を操作して流路を切り換えることによって、原水を浄化処理して吐水したり、原水を浄化処理せずそのままシャワーにして吐水することが可能としたものがある。そして、この流路の切り換えに円筒状のロータリー弁を用いたものがある。 In this type of water purifier, by switching the flow path by operating a switching lever, etc., the raw water can be purified and discharged, or the raw water can be discharged directly as a shower without being purified. There is. There is a type using a cylindrical rotary valve for switching the flow path.

例えば、特許文献１，２に開示されている浄水器では、流路切換部の側部に浄水カートリッジが取り付けられ、流路切換部は、内部が原水流路とされている中空円筒状のロータリー弁をその軸方向を水平にして切換部本体に回動可能に収納し、ロータリー弁の外周面にその軸方向および周方向に位置をずらしてシャワー用原水出口孔と浄化用原水出口孔を設け、切換部本体においてロータリー弁の真下に位置する部分にシャワー用原水導出路と浄化用原水導出路をロータリー弁の軸方向に沿って一直線上に設け、シャワー用原水導出路に連通する第１連通孔と浄化用原水導出路に連通する第２連通孔とを有する帯状の弁座パッキンを切換部本体に固定し、ロータリー弁を回転するとロータリー弁の外周面が弁座パッキンに水密状態に摺動するように構成されている。
このように切換部本体にシャワー用原水導出路と浄化用原水導出路を一直線上に配置すると、第１，第２連通孔が一直線上に配置された前記弁座パッキン１つで足りるので、構造が簡単で且つシール性も優れるという利点がある。 For example, in the water purifier disclosed in Patent Documents 1 and 2, a water purification cartridge is attached to the side of the flow path switching unit, and the flow path switching unit is a hollow cylindrical rotary whose inside is a raw water flow path. The valve is horizontally stored in the switching unit main body so that its axial direction is horizontal, and the raw water outlet hole for shower and the raw water outlet hole for purification are provided on the outer peripheral surface of the rotary valve by shifting the position in the axial direction and circumferential direction. In the switching unit main body, a shower raw water lead-out path and a purification raw water lead-out path are provided in a straight line along the axial direction of the rotary valve at a portion located immediately below the rotary valve, and communicated with the shower raw water lead-out path. A belt-shaped valve seat packing having a hole and a second communication hole communicating with the purification raw water lead-out path is fixed to the switching unit body, and when the rotary valve is rotated, the outer peripheral surface of the rotary valve slides in a watertight state on the valve seat packing. Do Is constructed sea urchin.
In this way, when the raw water outlet channel for shower and the raw water outlet channel for purification are arranged in a straight line in the switching unit main body, one valve seat packing in which the first and second communication holes are arranged in a straight line is sufficient. Is advantageous in that it is simple and has excellent sealing properties.

この浄水器では、ロータリー弁を回転して、ロータリー弁のシャワー用原水出口孔を弁座パッキンの第１連通孔を介して切換部本体のシャワー用原水導出路に接続すると、原水がシャワー用原水導出路を介してその真下に設けられたシャワー室に導入され、シャワー室の底板に形成されたシャワー吐水口からシャワーとして吐水される。また、ロータリー弁を回転して、ロータリー弁の浄化用原水出口孔を弁座パッキンの第２連通孔を介して切換部本体の浄水用原水導出路に接続すると、原水が浄水用原水導出路から切換部本体に形成されたカートリッジ導入流路を介して浄水カートリッジに供給される。 In this water purifier, when the rotary valve is rotated and the raw water outlet hole for shower of the rotary valve is connected to the raw water outlet for shower of the switching unit through the first communication hole of the valve seat packing, the raw water is supplied to the raw water for shower. It is introduced into a shower room provided directly under the lead-out path, and is discharged as a shower from a shower spout formed in the bottom plate of the shower room. In addition, when the rotary valve is rotated and the purification water outlet hole of the rotary valve is connected to the purified water outlet path of the switching unit through the second communication hole of the valve seat packing, the raw water is removed from the purified water outlet path of the purified water. The purified water cartridge is supplied through a cartridge introduction channel formed in the switching unit main body.

特開平１１−１０４６２７号公報Japanese Patent Laid-Open No. 11-104627 国際公開第２００７／１２６０４７Ａ１号パンフレットInternational Publication No. 2007 / 126047A1 Pamphlet

しかしながら、前記従来の浄水器のように、弁座パッキンの第１，第２連通孔および切換部本体のシャワー用原水導出路と浄化用原水導出路をいずれもロータリー弁の真下に配置すると、シャワー室はシャワー用原水導出路の真下に存在するので容易に接続することができるが、浄水カートリッジは切換部本体の側部に配置されているので、浄化用原水導出路から流出する原水の流れの向きを一度水平方向に曲げた後、浄水カートリッジへ導く前記カートリッジ導入流路が必要となる。 However, as in the conventional water purifier, when both the first and second communication holes of the valve seat packing and the raw water outlet for the shower and the raw water outlet for the purification are disposed directly below the rotary valve, the shower The chamber is located directly under the shower raw water outlet, so it can be connected easily.However, since the water purification cartridge is located on the side of the switching unit body, the flow of raw water flowing out of the raw water outlet After the direction is bent once in the horizontal direction, the cartridge introduction flow path leading to the water purification cartridge is required.

このカートリッジ導入流路がシャワー室に隣接して存在すると、例えば特許文献２のように、シャワー室とカートリッジ導入流路を同一水平面上に並べて配置した場合には、カートリッジ導入流路によりシャワー室が水平方向に制約を受け、設計の自由度が狭まるという課題が生じ、一方、特許文献１のように、シャワー室とカートリッジ導入流路とを段違いに配置し、カートリッジ導入流路の下側にシャワー室を配置すればシャワー室は水平方向に制約を受けなくなるが、切換部本体の全高が高くなって浄水器をコンパクトにできないという課題が生じる。 If this cartridge introduction flow path exists adjacent to the shower chamber, for example, as in Patent Document 2, when the shower chamber and the cartridge introduction flow channel are arranged side by side on the same horizontal plane, the shower introduction chamber is formed by the cartridge introduction flow channel. There is a problem that the degree of freedom in design is reduced due to restrictions in the horizontal direction. On the other hand, as shown in Patent Document 1, the shower chamber and the cartridge introduction flow path are arranged in a stepped manner, and the shower is provided below the cartridge introduction flow path. If the room is arranged, the shower room is not restricted in the horizontal direction, but the overall height of the switching unit main body becomes high, and there arises a problem that the water purifier cannot be made compact.

そこで、この発明は、設計の自由度を拡大することができ、且つコンパクト化が可能な浄水器を提供するものである。 Accordingly, the present invention provides a water purifier that can expand the degree of freedom of design and can be made compact.

この発明に係る浄水器では、上記課題を解決するために以下の手段を採用した。
請求項１に係る発明は、原水の流路を切り換える流路切換部と、原水を浄化処理する浄水部とを備え、
前記流路切換部は、内部が原水流路となっていて外周に第１原水出口孔と第２原水出口孔を有する円筒状のロータリー弁と、該ロータリー弁をその軸心を水平にして回動可能に収納する弁収納部を有する本体部と、前記本体部に固定されて前記ロータリー弁との間に配置され前記ロータリー弁の外周面が摺動可能な弁座パッキンと、を備え、
前記ロータリー弁の前記第１，第２原水出口孔はロータリー弁の軸方向に互いに位置をずらして配置されるとともに、ロータリー弁の周方向に互いに位置をずらして配置されており、
前記弁座パッキンには、前記ロータリー弁の前記第１，第２原水出口孔に接続可能な第１連通孔及び第２連通孔が一直線上に並んで互いに離間して設けられており、
前記第１連通孔及び第２連通孔は、前記ロータリー弁の中心軸と平行、かつ、前記ロータリー弁の最下点とは異なる位置に配置されており、
本体部には、原水を前記ロータリー弁の内部に導く原水供給路と、前記ロータリー弁の前記第１原水出口孔と前記弁座パッキンの前記第１連通孔とが接続したときに前記第１連通孔から吐出される原水を本体部の下部に設けられたシャワー室に導く第１原水導出路と、前記ロータリー弁の前記第２原水出口孔と前記弁座パッキンの前記第２連通孔とが接続したときに前記第２連通孔から吐出される原水を本体部の側部に設けられた浄水用原水供給口に導く第２原水導出路とが形成されており、
前記シャワー室に導入された原水はそのまま該シャワー室からシャワーとして吐水され、前記浄水用原水供給口に導かれた原水は前記浄水部に供給され浄化されて該浄水部から浄水として吐水されることを特徴とする浄水器である。 In the water purifier which concerns on this invention, in order to solve the said subject, the following means were employ | adopted.
The invention according to claim 1 includes a flow path switching unit that switches the flow path of the raw water, and a water purification unit that purifies the raw water,
The flow path switching unit includes a cylindrical rotary valve having a first raw water outlet hole and a second raw water outlet hole on the outer periphery thereof, and a rotary valve that rotates the rotary valve with its axis centered horizontally. A main body portion having a valve storage portion that is movably stored, and a valve seat packing that is fixed to the main body portion and disposed between the rotary valve and the outer peripheral surface of the rotary valve is slidable,
The first and second raw water outlet holes of the rotary valve are arranged to be displaced from each other in the axial direction of the rotary valve, and are arranged to be displaced from each other in the circumferential direction of the rotary valve,
The valve seat packing is provided with a first communication hole and a second communication hole that can be connected to the first and second raw water outlet holes of the rotary valve in a straight line and spaced apart from each other.
The first communication hole and the second communication hole are arranged in a position parallel to the central axis of the rotary valve and different from the lowest point of the rotary valve,
When the raw water supply path for guiding raw water to the inside of the rotary valve, the first raw water outlet hole of the rotary valve, and the first communication hole of the valve seat packing are connected to the main body, the first communication is established. A first raw water outlet passage that guides raw water discharged from the hole to a shower chamber provided at a lower portion of the main body, the second raw water outlet hole of the rotary valve, and the second communication hole of the valve seat packing are connected to each other. A second raw water lead-out path that guides the raw water discharged from the second communication hole to the raw water supply port for water purification provided on the side of the main body,
The raw water introduced into the shower room is discharged as a shower from the shower room as it is, and the raw water led to the raw water supply port for water purification is supplied to the water purification unit and purified and discharged from the water purification unit as purified water. It is a water purifier characterized by.

請求項２に係る発明は、請求項１に記載の発明において、前記ロータリー弁はその外周に第３原水出口孔を有し、この第３原水出口孔は前記第１，第２原水出口孔に対してロータリー弁の軸方向におよび周方向に位置をずらして配置されており、
前記弁座パッキンには前記ロータリー弁の前記第３原水出口孔に接続可能な第３連通孔が設けられ、この第３連通孔と前記第１，第２連通孔が前記ロータリー弁の軸方向に沿って一直線上に並んで互いに離間して設けられており、
前記本体部の下部中央には原水をそのままストレートに吐水する原水通路が設けられ、前記シャワー室は前記原水通路の周囲に環状に設けられており、
前記本体部には、前記ロータリー弁の前記第３原水出口孔と前記弁座パッキンの前記第３連通孔とが接続したときに前記第３連通孔から吐出される原水を前記原水通路に導く第３原水導出路が形成されていることを特徴とする。 The invention according to claim 2 is the invention according to claim 1, wherein the rotary valve has a third raw water outlet hole on an outer periphery thereof, and the third raw water outlet hole is formed in the first and second raw water outlet holes. In contrast, the rotary valve is arranged with its position shifted in the axial direction and circumferential direction,
The valve seat packing is provided with a third communication hole connectable to the third raw water outlet hole of the rotary valve, and the third communication hole and the first and second communication holes are provided in the axial direction of the rotary valve. Are arranged in a straight line along and spaced apart from each other,
A raw water passage is provided in the lower center of the main body for directly discharging raw water as it is, and the shower chamber is provided in an annular shape around the raw water passage,
When the third raw water outlet hole of the rotary valve and the third communication hole of the valve seat packing are connected to the main body, raw water discharged from the third communication hole is guided to the raw water passage. It is characterized in that 3 raw water outlets are formed.

請求項３に係る発明は、請求項１または請求項２に記載の発明において、前記該ロータリー弁の軸心から第１連通孔及び第２連通孔が並ぶ軸線に対して下ろした垂線と鉛直下向きの直線がなす角の大きさが、１５度〜７５度であることを特徴とする。 According to a third aspect of the present invention, in the first or second aspect of the present invention, a perpendicular line and a vertically downward direction are drawn from an axis line of the first communication hole and the second communication hole from the axial center of the rotary valve. The angle formed by the straight line is 15 to 75 degrees.

請求項４に係る発明は、請求項１または請求項２に記載の発明において、前記浄水部は流路切換部に着脱可能なカートリッジ式であることを特徴とする。 According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the water purification unit is a cartridge type that can be attached to and detached from the flow path switching unit.

この発明によれば、弁座パッキンに、ロータリー弁の第１，第２原水出口孔に接続可能な第１連通孔及び第２連通孔を一直線上に並んで互いに離間して設け、第１連通孔及び第２連通孔を、ロータリー弁の中心軸と平行、かつ、ロータリー弁の最下点とは異なる位置に配置しているので、弁座パッキンの第１連通孔から吐出される原水を本体部の下部に設けられたシャワー室に導く第１原水導出路については、その軸心を鉛直下方に配置することで第１原水導出路の流路長さを最短に構成することができ、一方、弁座パッキンの第２連通孔から吐出される原水を本体部の側部に設けられた浄水用原水供給口に導く第２原水導出路については、その軸心を水平方向に配置することによって、シャワー室との干渉を回避することができる。また、第２原水導出路をシャワー室よりも上側に配置することができ、浄水器の高さを低く抑えることができる。その結果、浄水器の設計自由度が拡大し、また、浄水器をコンパクトにすることができる。 According to this invention, the valve seat packing is provided with the first communication hole and the second communication hole that can be connected to the first and second raw water outlet holes of the rotary valve in a straight line and spaced apart from each other. Since the hole and the second communication hole are arranged at a position parallel to the central axis of the rotary valve and different from the lowest point of the rotary valve, the main water is discharged from the first communication hole of the valve seat packing. As for the first raw water lead-out path that leads to the shower room provided at the lower part of the section, the flow path length of the first raw water lead-out path can be configured to be the shortest by arranging the axial center vertically below, The second raw water lead-out path that guides the raw water discharged from the second communication hole of the valve seat packing to the raw water supply port for purified water provided on the side of the main body is arranged in the horizontal direction. Interference with the shower room can be avoided. Moreover, a 2nd raw | natural water extraction path can be arrange | positioned above a shower room, and the height of a water purifier can be restrained low. As a result, the degree of freedom of design of the water purifier is expanded, and the water purifier can be made compact.

この発明に係る浄水器の実施例における外観斜視図である。It is an external appearance perspective view in the Example of the water purifier which concerns on this invention. 実施例の浄水器の平面図である。It is a top view of the water purifier of an Example. 実施例の浄水器のシャワー部の分解斜視図である。It is a disassembled perspective view of the shower part of the water purifier of an Example. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 実施例の浄水器に用いられるロータリー弁の断面図である。It is sectional drawing of the rotary valve used for the water purifier of an Example. 実施例の浄水器におけるシャワー部の構成部品の一部を取り外して示す底面図である。It is a bottom view which removes and shows a part of component part of the shower part in the water purifier of an Example. 実施例の浄水器において原水をストレートに吐水するときの流路説明図であり、図４のＣ−Ｃ断面に対応する図である。It is flow path explanatory drawing when raw water is discharged straight in the water purifier of an Example, and is a figure corresponding to CC cross section of FIG. 実施例の浄水器において原水をシャワーで吐水するときの流路説明図であり、図４のＤ−Ｄ断面に対応する図である。It is flow path explanatory drawing when discharging raw water with a shower in the water purifier of an Example, and is a figure corresponding to the DD cross section of FIG. 実施例の浄水器において原水を浄水カートリッジに供給するときの流路説明図であり、図４のＥ−Ｅ断面に対応する図である。It is flow path explanatory drawing when supplying raw water to a water purification cartridge in the water purifier of an Example, and is a figure corresponding to the EE cross section of FIG. 図２のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 実施例の浄水器において原水をシャワーで吐水したときの吐水形態を示す図である。It is a figure which shows the water discharge form when raw water is discharged in the shower in the water purifier of an Example. 従来の浄水器において原水をシャワーで吐水したときの吐水形態を示す図である。It is a figure which shows the water discharging form when raw water is discharged with a shower in the conventional water purifier.

以下、この発明に係る浄水器の実施例を図１から図１１の図面を参照して説明する。
図１は実施例における浄水器１の外観斜視図、図２は同平面図である。この浄水器１は、水道の蛇口等に直接取り付けて使用する蛇口直結型の浄水器であり、蛇口に取り付けられる流路切換部２に、原水を浄化するカートリッジ式の浄水部（以下、浄水カートリッジと言う）１００が着脱可能に取り付けられて構成されている。 Hereinafter, an embodiment of a water purifier according to the present invention will be described with reference to the drawings of FIGS.
FIG. 1 is an external perspective view of a water purifier 1 in the embodiment, and FIG. 2 is a plan view thereof. This water purifier 1 is a faucet-directly connected water purifier that is directly attached to a tap or the like of a water supply. A cartridge-type water purifier for purifying raw water (hereinafter referred to as a water purifying cartridge) 100) is detachably mounted.

浄水カートリッジ１００は、略円筒状の樹脂製のケーシング１０１の内部に、流路切換部２から供給された原水を濾過する中空糸膜、活性炭、ゼオライト、イオン交換繊維、フィルタ、ストレーナ等（いずれも図示せず）を１または２種類以上を収容してなり、これら濾過材により浄化された浄水はケーシング１０１の一方の端面側に設けられた浄水吐水口１０２から吐水される。
図１に示すように、浄水カートリッジ１００を流路切換部２に装着した状態において、浄水吐水口１０２を鉛直下方に向けたときに、流路切換部２は浄水カートリッジ１００のケーシング１０１の側面である外周面から水平方向に突出する姿勢となる。以下の説明において上下方向、水平方向等の方向を指すときは、このときの姿勢を基準とする。また、図２において矢印Ｙ１を前方向、矢印Ｙ２を後方向と定義する。 The water purification cartridge 100 includes a hollow fiber membrane, activated carbon, zeolite, ion exchange fiber, filter, strainer, and the like that filter the raw water supplied from the flow path switching unit 2 inside a substantially cylindrical resin casing 101 (all of which are The purified water purified by the filter medium is discharged from a purified water outlet 102 provided on one end face side of the casing 101.
As shown in FIG. 1, when the water purification cartridge 100 is mounted on the flow path switching unit 2, the flow path switching unit 2 is located on the side surface of the casing 101 of the water purification cartridge 100 when the water purification outlet 102 is directed vertically downward. It becomes the attitude | position protruded from a certain outer peripheral surface in a horizontal direction. In the following description, when referring to a direction such as a vertical direction or a horizontal direction, the posture at this time is used as a reference. In FIG. 2, the arrow Y1 is defined as the forward direction, and the arrow Y2 is defined as the backward direction.

図４に示すように、流路切換部２は、円筒状のロータリー弁３と、ロータリー弁３を回動可能に収納した本体部４と、浄水カートリッジ１００を着脱可能に連結する連結部材７と、これらを収納するケーシング５と、ケーシング５の下側に設置されるカバー６と、図示しない蛇口に本体部４を固定するためのリング８と、ロータリー弁３を回動操作するための操作レバー９を主要構成として備えている。ロータリー弁３、本体部４、ケーシング５、カバー６、連結部材７、リング８、操作レバー９はいずれも樹脂で形成されている。 As shown in FIG. 4, the flow path switching unit 2 includes a cylindrical rotary valve 3, a main body unit 4 that rotatably stores the rotary valve 3, and a connecting member 7 that removably connects the water purification cartridge 100. , A casing 5 for housing them, a cover 6 installed on the lower side of the casing 5, a ring 8 for fixing the main body 4 to a faucet (not shown), and an operating lever for rotating the rotary valve 3 9 as a main component. The rotary valve 3, the main body 4, the casing 5, the cover 6, the connecting member 7, the ring 8, and the operation lever 9 are all made of resin.

本体部４には、浄水カートリッジ１００のケーシング１０１の軸心と直交する水平線を中心軸とする弁収納孔（弁収納部）１０が設けられている。弁収納孔１０は、浄水カートリッジ１００に近い側が閉塞され、浄水カートリッジ１００から遠い側が開口していて、この開口からロータリー弁３が挿入される。
また、本体部４には、弁収納孔１０に連なる原水通路１１が弁収納孔１０の上方に弁収納孔１０の長手方向に沿って設けられている。 The main body portion 4 is provided with a valve housing hole (valve housing portion) 10 having a horizontal axis perpendicular to the axis of the casing 101 of the water purification cartridge 100 as a central axis. The valve housing hole 10 is closed on the side close to the water purification cartridge 100 and opened on the side far from the water purification cartridge 100, and the rotary valve 3 is inserted through this opening.
Further, the main body 4 is provided with a raw water passage 11 connected to the valve storage hole 10 above the valve storage hole 10 along the longitudinal direction of the valve storage hole 10.

本体部４において、原水通路１１よりも上側の部分は円柱状に延びて蛇口接続部１２となっていて、蛇口接続部１２には鉛直方向に貫通し原水通路１１に連なる原水導入路１３が形成されている。この蛇口接続部１２にはリング８が螺合可能となっていて、水道の蛇口に挿通させたリング８を蛇口接続部１２に螺合し、蛇口接続部１２に装着したパッキン１４を前記蛇口に密着させることにより、流路切換部２を蛇口に連結することができるようになっている。なお、この実施例において、原水通路１１と原水導入路１３は、原水をロータリー弁３の内部に導く原水供給路を構成する。 In the main body 4, the portion above the raw water passage 11 extends in a columnar shape to form a faucet connection portion 12, and the faucet connection portion 12 is formed with a raw water introduction passage 13 that penetrates in the vertical direction and continues to the raw water passage 11. Has been. A ring 8 can be screwed into the tap connection portion 12, and the ring 8 inserted through the tap tap is screwed into the tap connection portion 12, and the packing 14 attached to the tap connection portion 12 is attached to the tap. By closely contacting, the flow path switching unit 2 can be connected to the faucet. In this embodiment, the raw water passage 11 and the raw water introduction path 13 constitute a raw water supply path that guides the raw water into the rotary valve 3.

本体部４の弁収納孔１０にはロータリー弁３が収納されている。ロータリー弁３は中空円筒状をなし、弁収納孔１０に収納される弁体部１５と、弁収納孔１０から外方へ突き出るシャフト１６を備えている。ロータリー弁３はその軸心を水平にして弁収納孔１０と同心上に配置され、軸心回りに回動可能に取り付けられている。ロータリー弁３の内部は原水流路１７となっていて、シャフト１６側は閉塞し、弁体部１５において浄水カートリッジ１００に近い側は開口している。 The rotary valve 3 is housed in the valve housing hole 10 of the main body 4. The rotary valve 3 has a hollow cylindrical shape, and includes a valve body portion 15 accommodated in the valve accommodation hole 10 and a shaft 16 protruding outward from the valve accommodation hole 10. The rotary valve 3 is disposed so as to be concentric with the valve storage hole 10 with its axis being horizontal, and is attached to be rotatable around the axis. The inside of the rotary valve 3 is a raw water flow path 17, the shaft 16 side is closed, and the side close to the water purification cartridge 100 in the valve body 15 is open.

図４および図５に示すように、ロータリー弁３の弁体部１５には、軸方向に互いに位置をずらし且つ周方向６０度ずつ位置をずらして第１原水出口孔１８、第２原水出口孔１９、第３原水出口孔２０が設けられている。この実施例では、図４に示すように、本体部４の原水導入路１３の真下に位置する弁体部１５の軸方向略中央に第３原水出口孔２０が配置され、第３原水出口孔２０よりも浄水カートリッジ１００に近い側に第２原水出口孔１９が配置され、第３原水出口孔２０よりもシャフト１６に近い側に第１原水出口孔１８が配置されており、図５において、第１原水出口孔１８から反時計回り方向に６０度離間して第２原水出口孔１９が配置され、第１原水出口孔１８から時計回り方向に６０度離間して第３原水出口孔２０が配置されている。なお、図５は、図４のＤ−Ｄ矢視におけるロータリー弁３の断面図である。さらに、これら第１原水出口孔１８、第２原水出口孔１９、第３原水出口孔２０に対して、それぞれロータリー弁３の軸方向同一位置であって周方向に１８０度離間した位置に、第１原水入口孔２１、第２原水入口孔２２、第３原水入口孔２３が設けられている。 As shown in FIGS. 4 and 5, the valve body portion 15 of the rotary valve 3 has a first raw water outlet hole 18 and a second raw water outlet hole that are displaced from each other in the axial direction and shifted by 60 degrees in the circumferential direction. 19, a third raw water outlet hole 20 is provided. In this embodiment, as shown in FIG. 4, a third raw water outlet hole 20 is arranged at a substantially axial center of the valve body portion 15 located just below the raw water introduction path 13 of the main body portion 4. 5, the second raw water outlet hole 19 is disposed closer to the water purification cartridge 100 than the first raw water outlet hole 19, and the first raw water outlet hole 18 is disposed closer to the shaft 16 than the third raw water outlet hole 20. A second raw water outlet hole 19 is disposed 60 degrees counterclockwise from the first raw water outlet hole 18, and a third raw water outlet hole 20 is spaced 60 degrees clockwise from the first raw water outlet hole 18. Has been placed. 5 is a cross-sectional view of the rotary valve 3 as viewed in the direction of arrows DD in FIG. Further, the first raw water outlet hole 18, the second raw water outlet hole 19, and the third raw water outlet hole 20 are respectively positioned at the same position in the axial direction of the rotary valve 3 and spaced 180 degrees in the circumferential direction. A first raw water inlet hole 21, a second raw water inlet hole 22, and a third raw water inlet hole 23 are provided.

また、図４および図７から図９に示すように、本体部４には弁収納孔１０に隣接して弁収納孔１０の斜め下４５度に位置する部位に、パッキン収納孔２４が弁収納孔１０の長手方向に沿って設けられている。パッキン収納孔２４には、ゴム等の弾性体からなる１枚の帯状の弁座パッキン２５が収納されている。弁座パッキン２５には、３つの連通孔２６，２７，２８が弁座パッキン２５の長手方向（すなわち、弁収納孔１０の軸方向と同方向）に互いに位置をずらして一直線上に配列され、貫通形成されている。これら連通孔２６，２７，２８は、ロータリー弁３の中心軸と平行な軸線上に並んで配置されており、ロータリー弁３の軸心から前記軸線に対して下ろした垂線と鉛直下向きの直線がなす角の大きさは４５度となっている。 Further, as shown in FIGS. 4 and 7 to 9, a packing storage hole 24 is provided in the body portion 4 at a position adjacent to the valve storage hole 10 and obliquely below 45 degrees of the valve storage hole 10. It is provided along the longitudinal direction of the hole 10. In the packing storage hole 24, a single strip-shaped valve seat packing 25 made of an elastic material such as rubber is stored. In the valve seat packing 25, three communication holes 26, 27, 28 are arranged in a straight line with their positions shifted from each other in the longitudinal direction of the valve seat packing 25 (that is, the same direction as the axial direction of the valve storage hole 10). It is formed through. These communication holes 26, 27, and 28 are arranged side by side on an axis parallel to the central axis of the rotary valve 3, and a perpendicular line and a vertically downward straight line are drawn from the axis of the rotary valve 3 with respect to the axis. The angle made is 45 degrees.

そして、ロータリー弁３を回転すると、その弁体部１５の外周面が弁座パッキン２５に密接摺動し、その回転位置によってロータリー弁３の第１，第２，第３原水出口孔１８，１９，２０のいずれか１つが弁座パッキン２５の連通孔２６，２７，２８のうちの一つに接続され、ロータリー弁３の二つの原水出口孔が同時に弁座パッキン２５の連通孔に接続することがないように構成されている。具体的には、図８に示すようにロータリー弁３の第１原水出口孔１８が弁座パッキン２５の連通孔２６（以下、第１連通孔２６という）に接続されたときには、弁座パッキン２５の他の二つの連通孔２７，２８はロータリー弁３の外周面によって閉塞され、図９に示すようにロータリー弁３の第２原水出口孔１９が弁座パッキン２５の連通孔２７（以下、第２連通孔２７という）に接続されたときには、弁座パッキン２５の他の二つの連通孔２６，２８はロータリー弁３の外周面によって閉塞され、図７に示すようにロータリー弁３の第３原水出口孔２０が弁座パッキン２５の連通孔２８（以下、第３連通孔２８という）に接続されたときには、弁座パッキン２５の他の二つの連通孔２６，２７はロータリー弁３の外周面によって閉塞される。 Then, when the rotary valve 3 is rotated, the outer peripheral surface of the valve body portion 15 closely slides on the valve seat packing 25, and the first, second and third raw water outlet holes 18, 19 of the rotary valve 3 depending on the rotation position. , 20 is connected to one of the communication holes 26, 27, 28 of the valve seat packing 25, and the two raw water outlet holes of the rotary valve 3 are simultaneously connected to the communication holes of the valve seat packing 25. It is configured so that there is no. Specifically, as shown in FIG. 8, when the first raw water outlet hole 18 of the rotary valve 3 is connected to a communication hole 26 of the valve seat packing 25 (hereinafter referred to as the first communication hole 26), the valve seat packing 25. The other two communication holes 27, 28 are closed by the outer peripheral surface of the rotary valve 3, and the second raw water outlet hole 19 of the rotary valve 3 is connected to the communication hole 27 (hereinafter referred to as “first”) of the valve seat packing 25 as shown in FIG. 2), the other two communication holes 26 and 28 of the valve seat packing 25 are closed by the outer peripheral surface of the rotary valve 3, and the third raw water of the rotary valve 3 as shown in FIG. When the outlet hole 20 is connected to the communication hole 28 of the valve seat packing 25 (hereinafter referred to as the third communication hole 28), the other two communication holes 26 and 27 of the valve seat packing 25 are formed by the outer peripheral surface of the rotary valve 3. Blocked

また、第１原水出口孔１８と第１連通孔２６が接続したとき、および第２原水出口孔１９が第２連通孔２７に接続したとき、および第３原水出口孔２０が第３連通孔２８に接続したときには、第１原水入口孔２１と第２原水入口孔２２と第３原水入口孔２３の少なくとも１つが原水通路１１に連通するように構成されている。 Further, when the first raw water outlet hole 18 and the first communication hole 26 are connected, when the second raw water outlet hole 19 is connected to the second communication hole 27, and when the third raw water outlet hole 20 is the third communication hole 28. Are connected to the raw water passage 11 at least one of the first raw water inlet hole 21, the second raw water inlet hole 22, and the third raw water inlet hole 23.

図４に示すように、本体部４における原水通路１１の開口端およびパッキン収納孔２４の開口端は、本体部４に液密に嵌合固定された軸受部材２９によって閉塞されており、この軸受部材２９をロータリー弁３のシャフト１６が液密に回動可能に貫通している
本体部４において、弁収納孔１０およびパッキン収納孔２４よりも下側の部分は円筒状に延び、外筒部３０と内筒部３１が同心上に形成されている。内筒部３１の内側は原水通路３２となっており、外筒部３０と内筒部３１の間に形成される環状の空間はシャワー室３３となっている。 As shown in FIG. 4, the opening end of the raw water passage 11 and the opening end of the packing housing hole 24 in the main body 4 are closed by a bearing member 29 fitted and fixed to the main body 4 in a liquid-tight manner. The shaft 16 of the rotary valve 3 penetrates the member 29 so as to be able to rotate in a liquid-tight manner. In the main body portion 4, portions below the valve storage hole 10 and the packing storage hole 24 extend in a cylindrical shape, and an outer cylinder portion 30 and the inner cylinder part 31 are formed concentrically. The inside of the inner cylinder part 31 is a raw water passage 32, and an annular space formed between the outer cylinder part 30 and the inner cylinder part 31 is a shower chamber 33.

本体部４においてパッキン収納孔２４の鉛直下方に位置する壁部には、弁座パッキン２５の第１連通孔２６とシャワー室３３とを接続する第１原水導出路３４が、その軸心を鉛直下方に向けて形成されるとともに（図８参照）、弁座パッキン２５の第３連通孔２８と原水通路３２とを接続する第３原水導出路３５が、その軸心を鉛直下方に向けて形成されている（図７参照）。なお、図６は、本体部４を下方から見て、原水通路３２とシャワー室３３と第１原水導出路３４と第３原水導出路３５の相対位置関係を示す図である。 A first raw water lead-out path 34 connecting the first communication hole 26 of the valve seat packing 25 and the shower chamber 33 is vertically arranged on the wall portion of the main body portion 4 positioned vertically below the packing housing hole 24. A third raw water lead-out path 35 that connects the third communication hole 28 of the valve seat packing 25 and the raw water passage 32 is formed with its axis oriented vertically downward (see FIG. 8). (See FIG. 7). FIG. 6 is a diagram showing a relative positional relationship between the raw water passage 32, the shower chamber 33, the first raw water outlet channel 34, and the third raw water outlet channel 35 when the main body 4 is viewed from below.

また、図９に示すように、本体部４においてパッキン収納孔２４の水平後方に位置する壁部には、弁座パッキン２５の第２連通孔２７に連通する第２原水導出路３６が、その軸心を水平後方に向けて形成されており、さらに、図１０に示すように、本体部４には、第２原水導出路３６に直交しその軸心を浄水カートリッジ１００に接近する方向へ水平に延ばす浄化用原水供給口３７が形成されている。すなわち、第２原水導出路３６は、弁座パッキン２５の第２連通孔２７と浄化用原水供給口３７とを接続する。なお、第２原水導出路３６の末端は端版３８によって閉塞されている。 Further, as shown in FIG. 9, a second raw water lead-out path 36 that communicates with the second communication hole 27 of the valve seat packing 25 is provided on the wall portion of the main body portion 4 that is positioned horizontally behind the packing storage hole 24. Further, as shown in FIG. 10, the main body portion 4 is formed in the main body 4 so as to be orthogonal to the second raw water lead-out path 36, and in the direction toward the water purification cartridge 100. A raw water supply port 37 for purification extending to is formed. That is, the second raw water lead-out path 36 connects the second communication hole 27 of the valve seat packing 25 and the raw water supply port 37 for purification. Note that the end of the second raw water outlet path 36 is closed by an end plate 38.

図４および図１０に示すように、本体部４において浄水カートリッジ１００に対向する部位には連結部材７が液密に固定されており、この連結部材７を介して浄水カートリッジ１００を流路切換部２に対して着脱することができるように構成されている。
連結部材７には、本体部４の浄化用原水供給口３７に接続された原水通路３９が形成されており、浄水カートリッジ１００を流路切換部２に取り付けた状態において、浄水カートリッジ１００の連結部１０３に設けられた原水導入路１０４と原水通路３９がシール材４０を介して連通するように構成されている。 As shown in FIGS. 4 and 10, a connecting member 7 is fixed in a liquid-tight manner at a portion facing the water purification cartridge 100 in the main body 4, and the water purification cartridge 100 is connected to the flow path switching unit via the connecting member 7. It is comprised so that it can attach or detach with respect to 2. FIG.
The connecting member 7 is formed with a raw water passage 39 connected to the purification raw water supply port 37 of the main body 4, and in a state where the purified water cartridge 100 is attached to the flow path switching unit 2, the connecting portion of the purified water cartridge 100. The raw water introduction path 104 provided in 103 and the raw water passage 39 are configured to communicate with each other via the sealing material 40.

前述した本体部４の内筒部３１内には、原水通路４１が鉛直方向に貫通形成された樹脂製の整流器４２が収納され、整流器４２の直ぐ下流に異物除去用のステンレス製のメッシュ板４３が配置されている。なお、整流器４２の原水通路４１は本体部４の原水通路３２に連通しており、実質的に本体部４の原水通路３２の一部とみなすことができ、したがって、シャワー室３３は原水通路３２の周囲に環状に設けられていると言える。 A resin rectifier 42 in which the raw water passage 41 is vertically formed is accommodated in the inner cylinder portion 31 of the main body portion 4 described above, and a stainless steel mesh plate 43 for removing foreign substances immediately downstream of the rectifier 42. Is arranged. The raw water passage 41 of the rectifier 42 communicates with the raw water passage 32 of the main body 4 and can be regarded substantially as a part of the raw water passage 32 of the main body 4. It can be said that it is provided in an annular shape around

一方、図４に示すように、本体部４のシャワー室３３には樹脂製の分散板４４が収納されている。分散板４４は、下側が円筒部４５、上側が円板部４６となっていて、中央に上下方向に貫通する貫通孔が形成されている。この貫通孔は下側と上側で径を異にし、下側が小径孔４７、上側が小径孔４７よりも若干大径の大径孔４８となっている。図３に示すように、円板部４６は、水平面からなる環状の上面４９と、上面４９に周方向等間隔に配列され上面４９から上方に突出し放射状に延びる複数のリブ５０とを備えている。各リブ５０の径方向内側の端部は上面４９の径方向内縁から外側に離間して位置しており、各リブ５０の径方向外側の端部は水平面４８の径方向外縁と一致している。前述した第１原水導出路３４の出口は、分散板４４の上面４９に対面して配置されている。 On the other hand, as shown in FIG. 4, a resin dispersion plate 44 is accommodated in the shower chamber 33 of the main body 4. The dispersion plate 44 has a cylindrical portion 45 on the lower side and a disc portion 46 on the upper side, and a through-hole penetrating in the vertical direction is formed in the center. The through holes have different diameters on the lower side and the upper side, the lower side being a small diameter hole 47 and the upper side being a large diameter hole 48 having a slightly larger diameter than the small diameter hole 47. As shown in FIG. 3, the disc portion 46 includes an annular upper surface 49 formed of a horizontal surface, and a plurality of ribs 50 that are arranged on the upper surface 49 at equal intervals in the circumferential direction and project upward from the upper surface 49 and extend radially. . The radially inner end of each rib 50 is located outward from the radially inner edge of the upper surface 49, and the radially outer end of each rib 50 coincides with the radially outer edge of the horizontal plane 48. . The outlet of the first raw water lead-out path 34 described above is disposed so as to face the upper surface 49 of the dispersion plate 44.

本体部４の外筒部３０の下側であって分散板４４の円筒部４５の外側には、リング状をなす整流用の２枚のステンレス製のメッシュ板５１，５２が重ねて配置されている。なお、メッシュ板５１，５２は耐食性を有する金属製であれば、ステンレス製に限るものではない。 Two stainless steel mesh plates 51 and 52 for rectification in a ring shape are arranged on the lower side of the outer cylindrical portion 30 of the main body portion 4 and outside the cylindrical portion 45 of the dispersion plate 44 so as to overlap each other. Yes. The mesh plates 51 and 52 are not limited to stainless steel as long as they are made of metal having corrosion resistance.

整流器４２とメッシュ板４３と分散板４４とメッシュ板５１，５２は、本体部４の下側に配置されたカバー６によって支持されている。この支持構造およびカバー６について詳述する。カバー６は、本体部４およびケーシング５に対して着脱可能に固定されている。カバー６の下部には下方に突出する円筒部５３が形成されており、円筒部５３の中央にはストレート吐水口５４が開口し、円筒部５３の内側にはストレート吐水口５４に連なる内側筒部５５が上方に起立して設けられている。 The rectifier 42, the mesh plate 43, the dispersion plate 44, and the mesh plates 51 and 52 are supported by a cover 6 disposed on the lower side of the main body portion 4. The support structure and the cover 6 will be described in detail. The cover 6 is detachably fixed to the main body 4 and the casing 5. A cylindrical portion 53 that protrudes downward is formed at the lower portion of the cover 6. A straight water outlet 54 is opened at the center of the cylindrical portion 53, and an inner cylindrical portion that is continuous with the straight water outlet 54 is formed inside the cylindrical portion 53. 55 is provided standing up.

カバー６の円筒部５３の内部には本体部４の外筒部３０が液密に嵌入し、本体部４の内筒部３１の内部にはカバー６の内側筒部５５が液密に嵌入しており、これにより、ストレート吐水口５４の周囲に形成された円筒部５３の底板５６がシャワー室３３を閉塞する。底板５６には多数のシャワー吐水口５７がその軸心を鉛直下方に向けて貫通形成されている。 The outer cylindrical portion 30 of the main body portion 4 is liquid-tightly fitted inside the cylindrical portion 53 of the cover 6, and the inner cylindrical portion 55 of the cover 6 is liquid-tightly fitted inside the inner cylindrical portion 31 of the main body portion 4. Accordingly, the bottom plate 56 of the cylindrical portion 53 formed around the straight water discharge port 54 closes the shower chamber 33. A large number of shower spouts 57 are formed in the bottom plate 56 so as to penetrate the shaft center downward in the vertical direction.

分散板４４は、その小径孔４７にカバー６の内側筒部５５をほぼ隙間なく挿通させ、大径孔４８に本体部４の内筒部３１を挿入させており、円筒部４５の下端をカバー６の底板５６の内面に突き当てることでカバー６によって下から支持されている。なお、この取り付け状態において、分散板４４の各リブ５０の上面が本体部４におけるシャワー室３３の上壁５８にほぼ接触するようにリブ５０の高さが設定されており、図４に示すように、分散板４４の円板部４６の外周と本体部４の外筒部３０の内周との間に原水が流通可能な外周通路５９が形成されるように、円板部４６の外径が設定されている。なお、前述したように分散板４４において各リブ５０の径方向内側の端部が円板部４６の上面４９の径方向内縁から外側に離間して位置しているので、分散板４４が取り付けられた状態において、図４に示すように、本体部４の内筒部３１と各リブ５０との間にはリング状の環状通路６０が形成されることとなる。 In the dispersion plate 44, the inner cylindrical portion 55 of the cover 6 is inserted through the small diameter hole 47 with almost no gap, and the inner cylindrical portion 31 of the main body portion 4 is inserted into the large diameter hole 48, and the lower end of the cylindrical portion 45 is covered. 6 is supported from below by the cover 6 by abutting against the inner surface of the bottom plate 56. In this attached state, the height of the rib 50 is set so that the upper surface of each rib 50 of the dispersion plate 44 substantially contacts the upper wall 58 of the shower chamber 33 in the main body 4, as shown in FIG. Further, the outer diameter of the disc portion 46 is formed such that an outer peripheral passage 59 through which raw water can flow is formed between the outer periphery of the disc portion 46 of the dispersion plate 44 and the inner periphery of the outer cylinder portion 30 of the main body portion 4. Is set. As described above, the radially inner end of each rib 50 in the dispersion plate 44 is located away from the radially inner edge of the upper surface 49 of the disk portion 46, so that the dispersion plate 44 is attached. In this state, as shown in FIG. 4, a ring-shaped annular passage 60 is formed between the inner cylinder portion 31 of the main body portion 4 and each rib 50.

一方、整流器４２はその上部フランジ部４２ａをカバー６における内側筒部５５の上端に係止させて内側筒部５５内に収納されており、整流器４２の下側に配置されるメッシュ板４３は内側筒部５５に基部内側に形成された段部に係止されている。 On the other hand, the rectifier 42 is housed in the inner cylinder portion 55 with its upper flange portion 42a engaged with the upper end of the inner cylinder portion 55 in the cover 6, and the mesh plate 43 disposed below the rectifier 42 is located on the inner side. The cylindrical portion 55 is locked to a step portion formed inside the base portion.

図４に示すように、ロータリー弁３のシャフト１６はケーシング５およびカバー６から外方に突出しており、この突出端にコア６１が固定され、コア６１に操作レバー９が固定されている。コア６１にはスプリング６２により軸受部材２９に接近する方向に付勢されたピン６３が突没可能に収納されており、コア６１から突出したピン６３の先端が、軸受部材２９の端面に形成された３つの凹部６４のいずれかに進入したときに、操作レバー９を操作した使用者にクリック感が感じられるように構成されている。 As shown in FIG. 4, the shaft 16 of the rotary valve 3 protrudes outward from the casing 5 and the cover 6, the core 61 is fixed to the protruding end, and the operation lever 9 is fixed to the core 61. A pin 63 urged in a direction approaching the bearing member 29 by a spring 62 is accommodated in the core 61 so as to protrude and retract, and a tip of the pin 63 protruding from the core 61 is formed on an end surface of the bearing member 29. When the user enters one of the three concave portions 64, the user who operates the operation lever 9 can feel a click.

この実施例の浄水器１では、図１および図２に示すように、操作レバー９を手前側水平姿勢に位置させたときに、図８に示すようにロータリー弁３の第１原水出口孔１８が弁座パッキン２５の第１連通孔２６に接続され、そのときにピン６３が第１の凹部６４に進入し、操作レバー９を前記水平姿勢から上方に６０度回転したときに、図９に示すようにロータリー弁３の第２原水出口孔１９が弁座パッキン２５の第２連通孔２７に接続され、そのときにピン６３が第２の凹部６４に進入し、操作レバー９を前記水平姿勢から下方に６０度回転したときに、図７に示すようにロータリー弁３の第３原水出口孔２０が弁座パッキン２５の第３連通孔２８に接続され、そのときにピン６３が第３の凹部６４に進入するようになっている。 In the water purifier 1 of this embodiment, as shown in FIGS. 1 and 2, when the operation lever 9 is positioned in the front horizontal posture, as shown in FIG. 8, the first raw water outlet hole 18 of the rotary valve 3. Is connected to the first communication hole 26 of the valve seat packing 25, and when the pin 63 enters the first recess 64 and the operating lever 9 is rotated 60 degrees upward from the horizontal posture, FIG. As shown, the second raw water outlet hole 19 of the rotary valve 3 is connected to the second communication hole 27 of the valve seat packing 25, at which time the pin 63 enters the second recess 64, and the operation lever 9 is moved to the horizontal posture. 7, the third raw water outlet hole 20 of the rotary valve 3 is connected to the third communication hole 28 of the valve seat packing 25 as shown in FIG. The concave portion 64 is entered.

次に、この浄水器１の作用を説明する。
初めに、蛇口から浄水器１に供給された原水を浄化処理せずにシャワーとして吐水する場合を説明する。この場合には、図１に示すように操作レバー９を水平姿勢にして、図８に示すようにロータリー弁３の第１原水出口孔１８と弁座パッキン２５の第１連通孔２６とを接続する。これにより、蛇口から本体部４の原水通路１１に導入された原水は、少なくとも第１原水入口孔２１を含む原水入口孔２１〜２３からロータリー弁３内の原水流路１７に流入し、さらにロータリー弁３の第１原水出口孔１８および弁座パッキン２５の第１連通孔２６を通って第１原水導出路３４に流出し、第１原水導出路３４からシャワー室３３に流入する。
なお、このときには、前述したように、弁座パッキン２５の第２連通孔２７と第３連通孔２８はロータリー弁３の外周面によって閉塞されているので、第２連通孔２７および第３連通孔２８から原水が流出することはない。 Next, the effect | action of this water purifier 1 is demonstrated.
First, the case where the raw water supplied to the water purifier 1 from the faucet is discharged as a shower without being purified will be described. In this case, the operation lever 9 is set in a horizontal position as shown in FIG. 1, and the first raw water outlet hole 18 of the rotary valve 3 and the first communication hole 26 of the valve seat packing 25 are connected as shown in FIG. To do. Thereby, the raw water introduced into the raw water passage 11 of the main body 4 from the faucet flows into the raw water flow path 17 in the rotary valve 3 from the raw water inlet holes 21 to 23 including at least the first raw water inlet hole 21, and further to the rotary It flows out into the first raw water outlet passage 34 through the first raw water outlet hole 18 of the valve 3 and the first communication hole 26 of the valve seat packing 25, and flows into the shower chamber 33 from the first raw water outlet passage 34.
At this time, as described above, since the second communication hole 27 and the third communication hole 28 of the valve seat packing 25 are closed by the outer peripheral surface of the rotary valve 3, the second communication hole 27 and the third communication hole No raw water flows out of the 28.

第１原水導出路３４からシャワー室３３に吐出された原水は、第１原水導出路３４の出口に対面して配置された分散板４４の上面４９に突き当たり、一部の原水は突き当たった部位に隣接して配置された２つのリブ５０，５０間を通って径方向外側へ流れていき、他の原水は分散板４４のリブ５０と本体部４の内筒部３１との間に形成された環状通路６０に流入し、この環状通路６０の全周に亘って原水が流れるようになり、さらに環状通路６０を流れていく過程で原水は各リブ５０の間を通って径方向外側に向かい分散板４４の上面４９に沿って流れていく。そして、リブ５０の間を径方向外側に流れ出た原水は、分散板４４の円板部４６と本体部４の外筒部３との間に形成された外周通路５９を通って下向きの流れとなってシャワー室３３の下側領域に広がっていく。このように、第１原水導出路３４からシャワー室３３に吐出された原水は、シャワー室３３の下側領域に至る間に、分散板４４によって周方向に均一に分散されるようになり、シャワー室全体を均一に流れるようになる。その結果、原水がシャワー室３３の一部領域に偏って流れるのを防止することができる。 The raw water discharged from the first raw water lead-out path 34 into the shower chamber 33 hits the upper surface 49 of the dispersion plate 44 disposed facing the outlet of the first raw water lead-out path 34, and a part of the raw water hits the part. It flowed radially outwardly between the two ribs 50, 50 arranged adjacent to each other, and other raw water was formed between the ribs 50 of the dispersion plate 44 and the inner cylinder part 31 of the main body part 4. The raw water flows into the annular passage 60, and raw water flows over the entire circumference of the annular passage 60. Further, in the course of flowing through the annular passage 60, the raw water is distributed radially outward through the ribs 50. It flows along the upper surface 49 of the plate 44. The raw water flowing out radially between the ribs 50 flows downward through an outer peripheral passage 59 formed between the disc portion 46 of the dispersion plate 44 and the outer cylinder portion 3 of the main body portion 4. It spreads to the lower area of the shower room 33. As described above, the raw water discharged from the first raw water outlet channel 34 to the shower chamber 33 is uniformly dispersed in the circumferential direction by the distribution plate 44 while reaching the lower region of the shower chamber 33, and the shower Flows evenly throughout the chamber. As a result, it is possible to prevent the raw water from flowing in a partial area of the shower chamber 33.

また、ロータリー弁３の第１原水出口孔１８と弁座パッキン２５の第１連通孔２６が鉛直方向に対して斜め下４５度に傾斜しているので、原水が第１原水出口孔１８および第１連通孔２６を通ってシャワー室３３に流出した際に、原水をシャワー室３３内で旋回させようとする作用が働く。しかしながら、この浄水器１では、第１原水導出路３４の出口に対面して分散板４４が配置されていて、原水は前述した経路を経てシャワー室３３の下側領域に広がっていくので、原水の旋回成分を殆ど消滅させることができ、シャワー室３３内で原水が旋回することがない。 In addition, since the first raw water outlet hole 18 of the rotary valve 3 and the first communication hole 26 of the valve seat packing 25 are inclined obliquely downward 45 degrees with respect to the vertical direction, the raw water is supplied to the first raw water outlet hole 18 and the first raw water outlet hole 18. When the water flows out into the shower chamber 33 through the one communication hole 26, the action of swirling the raw water in the shower chamber 33 works. However, in this water purifier 1, the dispersion plate 44 is disposed so as to face the outlet of the first raw water lead-out path 34, and the raw water spreads to the lower region of the shower chamber 33 through the above-described path. The swirl component can be almost eliminated, and the raw water does not swirl in the shower chamber 33.

そして、シャワー室３３の下側領域に導かれた原水は、積層された二つのメッシュ板５１，５２を通り、さらにカバー６の底板５６に設けられたシャワー吐水口５７を通って、図１１に示すように原水シャワーとして吐水される。 Then, the raw water led to the lower region of the shower chamber 33 passes through the two laminated mesh plates 51 and 52, and further passes through the shower spout 57 provided in the bottom plate 56 of the cover 6, and is shown in FIG. As shown, water is discharged as a raw water shower.

ところで、各シャワー吐水口５７から吐水される水線はその一つ一つが鉛直下方に真っ直ぐに流れるのが、見栄えの上から好ましいだけでなく、周囲への水滴飛散防止の上からも好ましい。以下、この水線が鉛直下方に真っ直ぐ流れる特性を清流性（整流性）と称す。
シャワー吐水口５７から吐水される水線の清流性（整流性）が悪い状態とは、例えば、シャワー吐水口５７から吐水される水線が鉛直下方ではなく斜めに傾いて流れていく場合や、水線の流れる方向は鉛直下方であるが水線がよじれて太さが変わりながら下方に流れていく場合などがある。このように清流性（整流性）が悪いと、図１２に示すように水線Ｗから細かい水滴Ｗｏが発生し、周囲に飛散してしまう。 By the way, it is not only preferable from the standpoint of appearance that each of the water lines discharged from each shower outlet 57 flows vertically downward, but also from the viewpoint of preventing water droplets from scattering to the surroundings. Hereinafter, the characteristic that the water line flows straight vertically downward is referred to as clear flow (rectification).
For example, when the water line discharged from the shower spout 57 has poor flowability (rectification), the water line discharged from the shower spout 57 flows obliquely instead of vertically downward, The direction in which the water line flows is vertically downward, but there are cases where the water line twists and flows downward while its thickness changes. When the clear flow property (rectifying property) is poor as described above, fine water droplets Wo are generated from the water line W as shown in FIG.

ここで、清流性（整流性）を悪化させる要因の一つとして、シャワー室３３内での原水の旋回流が考えられるが、前述したようにこの浄水器１では分散板４４の作用により、原水の旋回成分が殆ど消滅しているので、これによって清流性（整流性）が悪化することはない。
清流性（整流性）を悪化させる他の要因としてシャワー吐水口５７の直径Ｄと長さＬの比がある。一般に、孔を通過させて水を吐出する場合、孔の直径Ｄに対する孔の長さＬの比Ｌ／Ｄが大きい方が清流性（整流性）が高くなることが知られている。 Here, as one of the factors that deteriorate the clear flow property (rectifying property), the swirling flow of the raw water in the shower chamber 33 can be considered. As described above, in the water purifier 1, the raw water is caused by the action of the dispersion plate 44. Since the swirl component is almost disappeared, the clear flow property (rectifying property) is not deteriorated by this.
Another factor that deteriorates the clear flow (rectification) is the ratio of the diameter D and the length L of the shower spout 57. In general, when water is discharged through a hole, it is known that the larger the ratio L / D of the hole length L to the hole diameter D, the higher the flowability (rectifying property).

ところで、この実施例の浄水器１のように、樹脂製のカバー６に多数の小さなシャワー吐水口５７を形成する場合には、多数の細いピンを埋め込んだ状態でカバー６を成形し、成形後に前記ピンを引き抜くことによって、該ピンが埋め込まれていた部分をシャワー吐水口５７とするが、カバー６の底板５６の厚さ、すなわちシャワー吐水口５７の長さＬを長くすると前記ピンを引き抜く際にピンが折れるなどの不具合があり、この成形上の制約によってシャワー吐水口５７の長さＬを余り長くできず、Ｌ／Ｄに限界があり、所望する清流性（整流性）を得ることが難しかった。 By the way, when forming many small shower spouts 57 in the resin-made cover 6 like the water purifier 1 of this Example, the cover 6 is shape | molded in the state where many thin pins were embedded, and after shaping | molding By pulling out the pin, the portion where the pin is embedded becomes the shower water outlet 57, but when the thickness of the bottom plate 56 of the cover 6, that is, the length L of the shower water outlet 57 is increased, the pin is pulled out. The length L of the shower spout 57 cannot be made too long due to this molding restriction, and there is a limit to L / D, and the desired clear flow (rectification) can be obtained. was difficult.

しかしながら、この浄水器１では、シャワー吐水口５７の上流に、シャワー吐水口５７の孔径よりも小径の孔を有するメッシュ板５１，５２を配置しているので、Ｌ／Ｄを擬似的に大きくすることができ、清流性（整流性）を向上させることができる。
なお、この実施例の浄水器１では、シャワー吐水口５７の直径Ｄを約１ｍｍとし、底板５６の厚み（すなわちシャワー吐水口５７の長さ）Ｌはその２倍の約２ｍｍとし、メッシュ板５１，５２の目の粗さをいずれも＃６０とした。＃６０の粗さは約２４０μｍの孔径に相当する。メッシュ板５１，５２の目の粗さは＃６０が好適であるが、これに限るものではなく、＃４０〜＃８０を採用することが可能である。＃４０は約４００μｍの孔径に相当し、＃８０は約１８０μｍの孔径に相当する。メッシュ板５１，５２の目の粗さを＃４０よりも粗くすると所望する清流性（整流性）を得ることができないので、＃４０を下限値とした。一方、メッシュ板５１，５２は目の細かい方が清流性（整流性）が向上するが、＃８０よりも細かいと抵抗が大きくなって水量が低下するので、＃８０を上限値とした。また、メッシュ板の数は２枚に限るものではなく、１枚あるいは３枚以上であってもよい。メッシュ板の数は多い方が清流性（整流性）が向上するが、数を増やすと抵抗が大きくなり水量が低下するので、２枚が好適である。
なお、シャワー吐水口５７の直径Ｄと長さＬも前記寸法に限るものではない。 However, in this water purifier 1, since the mesh plates 51 and 52 having holes smaller in diameter than the shower water outlet 57 are arranged upstream of the shower water outlet 57, L / D is increased in a pseudo manner. It is possible to improve the clear flow property (rectifying property).
In the water purifier 1 of this embodiment, the diameter D of the shower spout 57 is about 1 mm, the thickness of the bottom plate 56 (that is, the length of the shower spout 57) L is about 2 mm, which is twice that, and the mesh plate 51 , 52 are both set to # 60. A roughness of # 60 corresponds to a pore diameter of about 240 μm. # 60 is suitable for the mesh roughness of the mesh plates 51 and 52, but is not limited to this, and # 40 to # 80 can be adopted. # 40 corresponds to a pore size of about 400 μm, and # 80 corresponds to a pore size of about 180 μm. Since the desired clear flow property (rectifying property) cannot be obtained if the mesh of the mesh plates 51 and 52 is made coarser than # 40, # 40 is set as the lower limit value. On the other hand, the finer the mesh plates 51 and 52, the better the flowability (rectifying property). However, if the mesh plates 51 and 52 are finer than # 80, the resistance increases and the amount of water decreases, so # 80 is set as the upper limit value. Further, the number of mesh plates is not limited to two, and may be one or three or more. A larger number of mesh plates improves the clear flow (rectification), but increasing the number increases resistance and decreases the amount of water, so two sheets are preferable.
The diameter D and the length L of the shower spout 57 are not limited to the above dimensions.

図１１は、実施例の浄水器１において原水シャワーとして吐水させたときの様子を示したものであり、清流性（整流性）が極めて高く、各シャワー吐水口５７から吐水される各水線Ｗが鉛直下方に真っ直ぐに流れていき、周囲に細かい水滴が飛散することがない。 FIG. 11 shows a state when water is discharged as a raw water shower in the water purifier 1 of the embodiment, and the water flow W discharged from each shower spout 57 is extremely high in clear flow (rectification). Flows straight down vertically, and fine water droplets do not scatter around.

次に、蛇口から浄水器１に供給された原水を浄化処理せずに直流水として吐水する場合を説明する。この場合には、操作レバー９を図１に示す水平姿勢から下方に６０度回転して、図７に示すようにロータリー弁３の第３原水出口孔２０と弁座パッキン２５の第３連通孔２８とを接続する。これにより、蛇口から本体部４の原水通路１１に導入された原水は、少なくとも第３原水入口孔２３を含む原水入口孔２１〜２３からロータリー弁３内の原水流路１７に流入し、さらにロータリー弁３の第３原水出口孔２０および弁座パッキン２５の第３連通孔２８を通って第３原水導出路３５に流出し、第３原水導出路３５から本体部４の原水通路３２に流入する。
なお、このときには、前述したように、弁座パッキン２５の第１連通孔２６と第２連通孔２７はロータリー弁３の外周面によって閉塞されているので、第１連通孔２６とおよび第２連通孔２７から原水が流出することはない。
原水通路３２に吐出された原水は、さらに整流器４２の原水通路４１を通り、メッシュ板４３を通過して、カバー６のストレート吐水口５４からストレートな直流水として吐水される。 Next, the case where the raw | natural water supplied to the water purifier 1 from the faucet is discharged as DC water without purifying is demonstrated. In this case, the operating lever 9 is rotated 60 degrees downward from the horizontal posture shown in FIG. 1, and the third raw water outlet hole 20 of the rotary valve 3 and the third communication hole of the valve seat packing 25 as shown in FIG. 28 is connected. Thereby, the raw water introduced into the raw water passage 11 of the main body 4 from the faucet flows into the raw water flow path 17 in the rotary valve 3 from the raw water inlet holes 21 to 23 including at least the third raw water inlet hole 23, and further to the rotary It flows out into the third raw water outlet passage 35 through the third raw water outlet hole 20 of the valve 3 and the third communication hole 28 of the valve seat packing 25, and flows into the raw water passage 32 of the main body 4 from the third raw water outlet passage 35. .
At this time, as described above, since the first communication hole 26 and the second communication hole 27 of the valve seat packing 25 are closed by the outer peripheral surface of the rotary valve 3, the first communication hole 26 and the second communication hole 26 are closed. The raw water does not flow out from the hole 27.
The raw water discharged into the raw water passage 32 further passes through the raw water passage 41 of the rectifier 42, passes through the mesh plate 43, and is discharged as straight DC water from the straight water outlet 54 of the cover 6.

次に、蛇口から浄水器１に供給された原水を浄化処理し、浄水として吐水する場合を説明する。この場合には、操作レバー９を図１に示す水平姿勢から上方に６０度回転して、図９に示すようにロータリー弁３の第２原水出口孔１９と弁座パッキン２５の第３連２孔２７とを接続する。これにより、蛇口から本体部４の原水通路１１に導入された原水は、少なくとも第２原水入口孔２２を含む原水入口孔２１〜２３からロータリー弁３内の原水流路１７に流入し、さらにロータリー弁３の第２原水出口孔１９および弁座パッキン２５の第２連通孔２７を通って本体部４の第２原水導出路３６に流出し、第２原水導出路３６から浄化用原水供給口３７に流出する。
なお、このときには、前述したように、弁座パッキン２５の第１連通孔２６と第３連通孔２８はロータリー弁３の外周面によって閉塞されているので、第１連通孔２６とおよび第３連通孔２８から原水が流出することはない。
浄化用原水供給口３７に吐出された原水は、図１０に示すように、連結部材７の原水通路３９を通り、浄水カートリッジ１００の原水導入路１０４に吐水される。これにより、原水は浄水カートリッジ１００に供給され、内部の濾過材によって浄化された浄水が浄水カートリッジ１００の浄水吐水口１０２から吐水される。 Next, the case where the raw water supplied to the water purifier 1 from the faucet is purified and discharged as purified water will be described. In this case, the operating lever 9 is rotated 60 degrees upward from the horizontal posture shown in FIG. 1, and the second raw water outlet hole 19 of the rotary valve 3 and the third series 2 of the valve seat packing 25 as shown in FIG. The hole 27 is connected. Thereby, the raw water introduced into the raw water passage 11 of the main body 4 from the faucet flows into the raw water flow path 17 in the rotary valve 3 from the raw water inlet holes 21 to 23 including at least the second raw water inlet hole 22, and further to the rotary It flows out through the second raw water outlet hole 19 of the valve 3 and the second communication hole 27 of the valve seat packing 25 to the second raw water outlet path 36 of the main body 4, and from the second raw water outlet path 36, the raw water supply port 37 for purification. To leak.
At this time, as described above, since the first communication hole 26 and the third communication hole 28 of the valve seat packing 25 are closed by the outer peripheral surface of the rotary valve 3, the first communication hole 26 and the third communication hole 26 are closed. The raw water does not flow out from the hole 28.
As shown in FIG. 10, the raw water discharged to the purification raw water supply port 37 passes through the raw water passage 39 of the connecting member 7 and is discharged into the raw water introduction path 104 of the water purification cartridge 100. As a result, the raw water is supplied to the water purification cartridge 100, and the purified water purified by the internal filter medium is discharged from the purified water outlet 102 of the water purification cartridge 100.

この実施例１の浄水器１によれば、弁座パッキン２５を、本体部４の弁収納孔１０における鉛直下方から周方向に４５度ずらした位置に配置し、この弁座パッキン２５に、ロータリー弁３の第１，第２，第３原水出口孔１８，１９，２０に接続可能な第１，第２，第３連通孔２６，２７，２８をロータリー弁３の軸方向に沿って一直線上に並べ互いに離間して設け、ロータリー弁３の軸心から第１，第２，第３連通孔２６，２７，２８が並ぶ軸線に対して下ろした垂線と鉛直下向きの直線がなす角の大きさを４５度としているので、弁座パッキン２５の第１連通孔２６から吐出される原水を本体部４の下部に設けられたシャワー室３３に導く第１原水導出路３４と、弁座パッキン２５の第３連通孔２８から吐出される原水を本体部４の下部中央に設けられた原水通路３２に導く第３原水導出路３５については、これら導出路３４，３５の軸心を鉛直下方に配置することでこれら導出路３４，３５の流路長さを最短に構成することができ、一方、弁座パッキン２５の第２連通孔２７から吐出される原水を本体部４の側部に設けられた浄水用原水供給口３７に導く第２原水導出路３６については、第２原水導出路３６の軸心を水平方向に配置することによって、シャワー室３３との干渉を回避することができる。また、第２原水導出路３６をシャワー室３３よりも上側に配置することができ、浄水器１の高さを低く抑えることができる。
その結果、浄水器１の設計自由度が拡大し、また、浄水器１をコンパクトにすることができる。 According to the water purifier 1 of the first embodiment, the valve seat packing 25 is disposed at a position shifted by 45 degrees in the circumferential direction from the vertically lower side in the valve housing hole 10 of the main body portion 4. The first, second, and third communication holes 26, 27, and 28 that can be connected to the first, second, and third raw water outlet holes 18, 19, and 20 of the valve 3 are aligned along the axial direction of the rotary valve 3. Are arranged apart from each other, and are perpendicular to the axis lined with the first, second, and third communication holes 26, 27, 28 from the axis of the rotary valve 3, and the angle formed by the vertically downward straight line Is 45 degrees, so that the raw water discharged from the first communication hole 26 of the valve seat packing 25 is guided to the shower chamber 33 provided at the lower portion of the main body 4, and the valve seat packing 25 Raw water discharged from the third communication hole 28 is placed in the lower part of the main body 4. As for the third raw water lead-out path 35 led to the raw water passage 32 provided in the pipe, the flow path lengths of the lead-out paths 34 and 35 are configured to be the shortest by arranging the axes of the lead-out paths 34 and 35 vertically downward. On the other hand, for the second raw water lead-out path 36 that guides the raw water discharged from the second communication hole 27 of the valve seat packing 25 to the raw water supply port 37 for water purification provided in the side part of the main body 4, By arranging the axis of the second raw water outlet path 36 in the horizontal direction, interference with the shower chamber 33 can be avoided. Moreover, the 2nd raw | natural water derivation | leading-out path 36 can be arrange | positioned above the shower chamber 33, and the height of the water purifier 1 can be restrained low.
As a result, the design freedom of the water purifier 1 is expanded, and the water purifier 1 can be made compact.

〔他の実施例〕
なお、この発明は前述した実施例に限られるものではない。
例えば、前述した実施例では、原水をストレートな直流水として吐水することができるようにするために、ロータリー弁３に第３原水出口孔２０を設け、弁座パッキン２５に第３連通路２８を設け、本体部４に原水通路３２や第３原水導出路３５等を設けているが、この発明は、原水をストレートな直流水として吐水しない浄水器にも適用可能であり、その場合には、第３原水出口孔２０、第３連通路２８、原水通路３２、第３原水導出路３５等を設けない。 [Other Examples]
The present invention is not limited to the embodiment described above.
For example, in the embodiment described above, the third raw water outlet hole 20 is provided in the rotary valve 3 and the third communication passage 28 is provided in the valve seat packing 25 so that the raw water can be discharged as straight DC water. The main body 4 is provided with the raw water passage 32, the third raw water outlet passage 35, etc., but the present invention is also applicable to a water purifier that does not discharge raw water as straight DC water, The third raw water outlet hole 20, the third communication passage 28, the raw water passage 32, the third raw water outlet passage 35, etc. are not provided.

また、ロータリー弁３の軸心から弁座パッキン２５の第１，第２，第３連通孔２６，２７，２８が並ぶ軸線に対して下ろした垂線と鉛直下向きの直線とがなす角の大きさを４５度としたが、この角度は４５度に限るものではなく、例えば１５度〜７５度の範囲で適宜設定することができる。 Further, the angle formed by the perpendicular line and the vertically downward straight line from the axis of the rotary valve 3 with respect to the axis line where the first, second and third communication holes 26, 27, 28 of the valve seat packing 25 are arranged. However, the angle is not limited to 45 degrees, and can be set as appropriate within a range of 15 to 75 degrees, for example.

１浄水器
２流路切換部
３ロータリー弁
４本体部
１０弁収納孔（弁収納部）
１１原水通路（原水供給路）
１３原水導入路（原水供給路）
１８第１原水出口孔
１９第２原水出口孔
２０第３原水出口孔
２５弁座パッキン
２６第１連通孔
２７第２連通孔
２８第３連通路
３２原水通路
３３シャワー室
３４第１原水導出路
３５第３原水導出路
３６第２原水導出路
３７浄水用原水供給口
１００浄水カートリッジ（浄水部） DESCRIPTION OF SYMBOLS 1 Water purifier 2 Flow path switching part 3 Rotary valve 4 Main-body part 10 Valve accommodation hole (valve accommodation part)
11 Raw water passage (raw water supply channel)
13 Raw water introduction channel (raw water supply channel)
18 First raw water outlet hole 19 Second raw water outlet hole 20 Third raw water outlet hole 25 Valve seat packing 26 First communication hole 27 Second communication hole 28 Third communication path 32 Raw water path 33 Shower room 34 First raw water outlet path 35 Third raw water lead-out path 36 Second raw water lead-out path 37 Raw water supply port 100 for water purification Water purification cartridge (water purification section)

Claims

A flow path switching unit that switches the flow path of the raw water, and a water purification unit that purifies the raw water,
The flow path switching unit includes a cylindrical rotary valve having a first raw water outlet hole and a second raw water outlet hole on the outer periphery thereof, and a rotary valve that rotates the rotary valve with its axis centered horizontally. A main body portion having a valve storage portion that is movably stored, and a valve seat packing that is fixed to the main body portion and disposed between the rotary valve and the outer peripheral surface of the rotary valve is slidable,
The first and second raw water outlet holes of the rotary valve are arranged to be displaced from each other in the axial direction of the rotary valve, and are arranged to be displaced from each other in the circumferential direction of the rotary valve,
The valve seat packing is provided with a first communication hole and a second communication hole that can be connected to the first and second raw water outlet holes of the rotary valve in a straight line and spaced apart from each other.
The first communication hole and the second communication hole are arranged in a position parallel to the central axis of the rotary valve and different from the lowest point of the rotary valve,
When the raw water supply path for guiding raw water to the inside of the rotary valve, the first raw water outlet hole of the rotary valve, and the first communication hole of the valve seat packing are connected to the main body, the first communication is established. A first raw water outlet passage that guides raw water discharged from the hole to a shower chamber provided at a lower portion of the main body, the second raw water outlet hole of the rotary valve, and the second communication hole of the valve seat packing are connected to each other. A second raw water lead-out path that guides the raw water discharged from the second communication hole to the raw water supply port for water purification provided on the side of the main body,
The raw water introduced into the shower room is discharged as a shower from the shower room as it is, and the raw water led to the raw water supply port for water purification is supplied to the water purification unit and purified and discharged from the water purification unit as purified water. A water purifier characterized by

The rotary valve has a third raw water outlet hole on the outer periphery thereof, and the third raw water outlet hole is arranged with a position shifted in the axial direction and the circumferential direction of the rotary valve with respect to the first and second raw water outlet holes. Has been
The valve seat packing is provided with a third communication hole connectable to the third raw water outlet hole of the rotary valve, and the third communication hole and the first and second communication holes are provided in the axial direction of the rotary valve. Are arranged in a straight line along and spaced apart from each other,
A raw water passage is provided in the lower center of the main body for directly discharging raw water as it is, and the shower chamber is provided in an annular shape around the raw water passage,
When the third raw water outlet hole of the rotary valve and the third communication hole of the valve seat packing are connected to the main body, raw water discharged from the third communication hole is guided to the raw water passage. 3. The water purifier according to claim 1, wherein three raw water lead-out paths are formed.

The angle formed by a perpendicular line and a vertically downward straight line with respect to the axis line along which the first communication hole and the second communication hole are arranged from the axial center of the rotary valve is 15 degrees to 75 degrees, The water purifier according to claim 1 or 2.

The water purifier according to claim 1 or 2, wherein the water purifier is a cartridge type that can be attached to and detached from the flow path switching unit.