201211356 六、發明說明： 【發明所屬之技術領域】 本發明是關於安裝於水龍頭等的供水口而能夠任意調 節出水量之省水器具。 本申請是以2010年6月11日於日本申請之日本專利 申請號特願20 1 0- 1 34 1 76爲基礎而主張優先権，將該基礎 案以參照的方式援用於本申請中。 【先前技術】 本申請人，先前提出下述專利文獻1所記載的省水器 具。該省水器具，是在殼體內依序配設減壓構件和省水構 件，利用減壓構件將來自水龍頭的流水壓力予以減壓，在 減壓構件和省水構件間的空間部讓水滯留後再從省水構件 的出水孔將水吐出。減壓構件，也具備將來自水龍頭的流 水予以節流之節流構件的作用，而能決定朝出水孔供給的 水量。 此外，專利文獻1的省水器具，是藉由調節水壓來進 行省水，藉由將水壓減低，可防止出水孔所吐出的水流飛 濺而弄髒周圍環境。 [專利文獻] [專利文獻1]國際公開第2009/044703號 【發明內容】 然而，水龍頭的水壓，會依建築物的供水設備、樓層 -5- 201211356 數等而產生變動，並非相同。此外，依厨房設備的水龍頭 或洗臉台的水龍頭等用途，所要求的水量、水壓也不相同 。再者’水龍頭的水量、水壓之偏好，也會依使用者而有 不同。 在上述專利文獻1所記載的一形態之省水器具，爲了 對應於這種要求，必須事先準備許多種類的減壓構件，而 從事先準備的減壓構件當中選擇所期望的減壓構件。對應 於施工場所來選擇減壓構件的作業，是需要充分經驗的作 業，減壓構件的更換作業，則必須重新進行省水器具的分 解組裝，變得很麻煩。一般而言，省水器具的安裝作業是 在設備運轉中進行，因此必須儘量在短期間內完成。 此外，爲了防止出水孔所吐出的水飛濺，除了水壓以 外，吐出方向的控制和水壓、水量的關係也很重要。例如 ，在對洗臉台的面盆吐水時，若水壓高且水量過多，水滴 可能會飛濺到面盆外。特別是在朝向面盆上方吐水時，水 滴很容易就飛濺到面盆外。 本發明的目的是爲了提供一種容易進行出水量的調節 之省水器具。 此外，本發明的目的是爲了提供一種可限制出水量且 容易調節水的吐出方向之省水器具。 爲了解決i述課題，本發明之省水器具，係具備大致 筒狀的殼體、設在上述殼體內之節流構件以及噴嘴構件； 該殼體，係具有可安裝於供水口之安裝開口部、朝出水側 開口之出水側開口部；該節流構件形成有將上述供水口所 -6- 201211356 供應的水流予以節流之第一孔 對上述出水側開口部之出水面 設與上述第一孔部相連之第二 二孔部的水流從該出水面吐出 藉由讓上述第一孔部和上 可改變上述第一孔部和上述第 量。亦即，上述第一孔部和上 再者，上述出水孔可貫穿 可在上述節流構件和上述噴嘴 述第二孔部的水流在到達上述 壓之空間部。 再者，可在上述節流構件 成突起，在另一方形成供上述 凹部，藉由使上述節流構件和 上述突起選擇性地卡合於上述 上述第二孔部的偏位量之設定 此外，上述第二孔部，可 噴嘴構件進行旋轉之水量調節 再者，上述噴嘴構件，可 所形成之環狀的出水孔列，上 數個出水孔當中任意的出水孔 上述噴嘴構件可相對於上述節 構件經由旋轉而切換成將所有 、或將上述出水孔當中任意的 部；該噴嘴構件，係具有面 ，在與該出水面的相反側穿 孔部，且貫穿有讓來自該第 之複數個出水孔。 述第二孔部彼此相對旋轉， 二孔部的偏位量而調節出水 述第二孔部可重疊而連通。 上述出水面的周圍。此外， 構件之間形成有：讓來自上 出水孔的期間互相碰撞而減 及上述噴嘴構件之任一方形 突起選擇性地卡合之複數個 上述噴嘴構件相對旋轉，讓 凹部，而將上述第一孔部和 狀態保持一定。 形成於安裝成能相對於上述 體。 形成有由上述複數個出水孔 述節流構件可具有將上述複 選擇性地封閉之封閉突起， 流構件進行旋轉，上述噴嘴 的出水孔打開之準省水位置 出水孔藉由上述封閉突起予 201211356 以封閉之省水位置。 較佳爲，在上述噴嘴構件，將複數個上述環狀的出水 孔列排列成同心圓狀，經由旋轉，使上述任意的環狀的出 水孔列藉由上述節流構件的封閉突起封閉而成爲省水位置 〇 再者，可具備配設於上述殼體內的襯墊，上述節流構 件和上述噴嘴構件的組裝體的外表面是形成包含球體的最 大直徑部分之大致半球面狀，上述襯墊之與上述組裝體的 大致半球面狀之外表面接觸的面，是成爲與上述組裝體的 大致半球面狀之外表面對應的大致球面狀的座面，上述出 水側開口部之與上述組裝體抵接的內周部，是具有比上述 組裝體的最大外徑更小的內徑部，上述組裝體配設成，以 讓上述出水面從上述出水側開口部面對外部的方式能相對 於上述襯墊的上述大致球面狀之座面進行滑動，而讓上述 出水面的角度成爲可變。在此情況，上述出水側開口部之 與上述組裝體抵接的內周部，可成爲與上述組裝體之大致 半球面狀的外表面對應之大致球面狀的座面。再者，上述 節流構件，能將上述通水孔的入口做成突出部，藉由使上 述突出部抵觸上述襯墊的內周壁，以限制上述組裝體的可 動範圍。此外，上述節流構件和上述噴嘴構件的組裝體， 可形成包含球體的最大直徑部分且在上述出水側開口部側 具有直徑爲上述最大直徑以下的面之大致半球狀，上述直 徑爲最大直徑以下的面是成爲上述出水面。 依據本發明，藉由使第一孔部和上述第二孔部彼此相 -8- 201211356 對旋轉，能改變第一孔部和第二孔部的偏位量而調節出水 量。因此，能輕易地進行出水量的調節。亦即，能按照省 水器具之安裝場所及用途而輕易地進行出水量調節。 此外，藉由使節流構件和噴嘴構件相對旋轉，讓設置 於一方之突起相對於設置於另一方之複數個凹部進行選擇 性地卡合，能將第一孔部和第二孔部的偏位量的設定狀態 保持一定，而能輕易地進行出水量的切換作業。 再者，具備由複數個出水孔所形成之環狀的出水孔列 ，將任意的出水孔藉由封閉突起選擇性地封閉，能輕易地 進行出水量調節。 再者，節流構件和上述噴嘴構件的組裝體之外表面形 成大致半球面狀，讓襯墊之與組裝體的大致半球面狀之外 表面接觸的面，成爲與組裝體的大致半球面狀之外表面對 應之大致球面狀的座面，藉此能輕易地改變出水方向。 又關於水的吐出方向的調節，能夠依據下述省水器具 的構造來實現。亦即，該省水器具係具備大致筒狀的殼體 、設在上述殼體內之節流構件、噴嘴構件以及襯墊：該殼 體，係具有可安裝於供水口之安裝開口部、朝出水側開口 之出水側開口部；該節流構件形成有將上述供水口所供應 的水流予以節流之通水孔；該噴嘴構件，係穿設有與上述 通水孔相連之複數個出水孔，且具有面對上述出水側開口 部之出水面，其與上述節流構件組合而構成組裝體；該襯 墊，是配設於上述殼體內，而用來確保其與上述組裝體的 水密性及其與上述供水口的水密性。而且，包含上述節流 201211356 構件和上述噴嘴構件而構成之上述組裝體的外表面，是形 成大致半球面狀。此外，上述襯墊之與上述組裝體的大致 半球面狀的外表面接觸的面，是成爲與上述組裝體的大致 半球面狀之外表面對應的大致球面狀的座面。上述出水側 開口部之與上述組裝體抵接的內周部，係具有比上述組裝 體的最大外徑更小的內徑部。如此般，上述組裝體配設成 能相對於上述襯墊的大致球面狀之座面進行滑動，而能輕 易地改變上述出水面的角度之設定。而且，在省水狀態下 ，即使水壓上昇時，籍由調節吐出方向，能防止出水、水 滴飛濺到面盆外而將面盆周圍弄髒。 【實施方式】 以下、參照圖式說明本發明所採用之省水器具。 [整體構造] 如第1圖及第2圖所示般，本發明所採用之省水器具 1係具備：安裝於自來水的水龍頭2之殼體Π、將從水龍 頭2供應的水量予以節流之節流構件2 1、以及用來吐水之 噴嘴構件3 1。 [殼體的說明] 殼體11如第1圖及第2圖所示般是形成筒狀’一端 成爲安裝於水龍頭2等的供水口 3之安裝開口部1 2 ’另一 端成爲吐出水流側的開口之出水側開口部1 3。在安裝開口 -10- 201211356 部12的內周面形成螺紋槽槽12a，藉由鎖緊於水龍頭2的 螺紋部而將殼體Π安裝在水龍頭2等上。當然，螺紋槽 12a的形成部位並不限於安裝開口部12的內周面，例如是 外周面亦可，又將殼體11安裝於供水口 3的手段並不限 定於螺紋槽。 在該殼體1 1內的空間部，收容上述節流構件2 1和噴 嘴構件3 1。在螺紋槽12a的下側形成用來安裝襯墊14a之 安裝凹部14。襯墊14a是用來防止水龍頭2和殼體11間 發生漏水，例如是由環狀的橡膠墊所形成。又在本發明中 ，襯墊並非必要構件，例如，讓節流構件21成爲能確保 水密性而發揮與襯墊同等的效果亦可。若將襯墊14a安裝 於安裝凹部14，並將螺紋槽12a鎖緊於水龍頭2的螺紋部 而壓接於水龍頭2，可確保水龍頭2和殼體1 1間的水密性 而防止漏水。 此外，在殼體1 1之出水側開口部1 3側的內周面，形 成有用來安裝噴嘴構件31之安裝段部15。在安裝段部15 讓噴嘴構件31卡合，以防止其從出水側開口部1 3脫落。 在殼體11內，在該噴嘴構件31上方配設節流構件21。 [節流構件的說明] 爺流構件2 1，如第1圖〜第3圖所示般是形成大致圓 柱狀，在上下形成有凸緣部22,2 3。節流構件21，是在設 有上側凸緣22之上面大致中央部，貫穿厚度方向而形成 作爲通水孔之第一孔部24。第一孔部24，是等間隔地配 -11 - 201211356 置於四角形的頂部位置而設有四個，能使水流變穩定。此 外，第一孔部24，在本例沒有特別的限定，例如只要能使 各孔部的水流穩定’其數目、形狀、大小沒有特別的限定 。複數個第一孔部24是用來限制從水龍頭2的供水口 3 供應的水流量。 第一孔部24，不是遍及整體厚度方向來形成，而是形 成靠安裝開口部1 2側，在節流構件2 1形成有：連續於複 數個第一孔部24而開口於下游側的凸緣部23中央部之大 致圓筒狀的連接凹部25。在連接凹部25，讓噴嘴構件31 的圓筒部32嵌合。 在複數個第一孔部24的周圍，形成有底的環狀凹部 26。在本發明中，該環狀凹部26雖不是必要構件，但在 使用樹脂成形來形成節流構件21的情況，可謀求省材料 化’且能抑制成形時之尺寸穩定性降低。 在另一方的凸緣部23，於外周部呈環狀地形成有朝下 方突出之間隔件突部27。間隔件突部27，是用來將配置 於節流構件2 1下側之噴嘴構件3丨予以定位，且在節流構 件21和噴嘴構件3丨之間形成減壓用的空間部28，並能確 保節流構件21和噴嘴構件31的接合部周邊之水密性，而 能防止從噴嘴構件21和殼體11的接觸部周邊發生漏水。 此外’在間隔件突部27的前端面形成有突起29。突 起29可選擇性地卡合於後述噴嘴構件31上所形成之複數 個凹部’以一邊目視確認噴嘴構件31相對於節流構件2 i 的旋轉位置一邊進行分段調節。 -12- 201211356 [噴嘴構件的說明] 噴嘴構件31，如第1圖、第2圖及第4圖所示般呈大 致圓柱狀，在上面的中央部形成圓筒部32。當然，形成於 噴嘴構件的上面中央部之圓筒部32不—定要是圓筒狀， 例如也能形成多角筒狀，只要在第一孔部和第二孔部和抵 接部周邊能獲得某種程度的水密性即可，沒有特別的限定 。在圓筒部32，對應於節流構件2 1之複數個第一孔部24 而形成有複數個第二孔部33。各第二孔部33，是在圓筒 部32的前端面形成與第一孔部24相連之入口 33a，在側 面形成出口 33b，而使流路成爲大致L字狀。 又第二孔部3 3 ’並不限定於本例，例如只要能讓各孔 部的水流變穩定，其數目、形狀、大小沒有特別的限定。 圓筒部3 2 ’是嵌合於節流構件2 1的下游側所形成之 連接凹部2 5。藉此，使節流構件2 1的第一孔部2 4和噴嘴 構件31的第二孔部33在水流方向重疊而相連。因此，通 過第一及第二孔部24,3 3的水可從出口 33b往噴嘴構件3 1 的上面流出。 在噴嘴構件31的上面，於外周部形成有卡合段部34 。卡合段部34，是卡合在呈環狀地形成於節流構件21的 下面之間隔件突部27。藉此，噴嘴構件3 1，能以形成空 間部2 8的狀態定位安裝於節流構件2 1的下游側。此外， 卡合段部34，藉由卡合於節流構件21之間隔件突部27， 可確保節流構件2 1和噴嘴構件3 1間的水密性，且在相對 -13- 201211356 於節流構件21讓噴嘴構件31以圓筒部32(嵌合於節流構 件21之連接凹部25)爲中心進行旋轉時，可發揮導引部的 作用。 此外，當圓筒部32的外形成爲多角筒狀，且對應於 此使節流構件3 1的連接凹部25內形成爲多角柱狀的情況 ，每次要調整節流構件2 1和噴嘴構件3 1的相對旋轉時， 都必須讓彼此分離而拔出，反而能獲得只要不脫離彼此就 不會產生位置偏移的效果。因此，在此情況，不致因外部 之不小心的作用力等而造成出水量改變。 形成有卡合段部34的部分，是成爲凸緣部35，該凸 緣部3 5是藉由殼體1 1的安裝段部1 5從下側支承。 在噴嘴構件31，遍及上游面至成爲出水面31a之下游 面形成有複數個出水孔36。出水孔36是形成於卡合段部 34的內側，且是形成在遠離第二孔部33的出口 33b之位 置。該出水孔3 6，是在噴嘴構件3 1的外周側呈環狀地形 成一列，其列數爲二列、三列等複數列亦可。 噴嘴構件31之下游面，亦即從殼體1 1的出水側開口 部1 3面對外部之出水面3 1 a，雖可形成平坦狀，但在此是 以中心最凹陷之凹部（截面爲畫出擺線曲線的曲面）的方式 形成》出水面3 1 a是由畫出擺線曲線的曲面所形成時，從 出水孔3 6吐出的水流較寬廣，而能讓從殼體1 1的出水側 開口部1 3吐出之水流整體看起來變粗。 此外，在噴嘴構件31的凸緣部35，形成有複數個（在 此爲四個）凹部37。凹部37，是開口於凸緣部35的上游 14 - 201211356 面和側面，且從上游面起算的深度是形成彼此不同。具體 而言，一端側的凹部37a形成最淺，凹部37b、凹部37c 依序變深，而凹部37d形成最深。在該等的凹部37a〜37d ，讓節流構件21之間隔件突部27的前端面之突起29選 擇性地卡合。突起29往鄰接的凹部37移動時，越過凹部 3 7間會產生卡嗒感，讓使用者知道噴嘴構件31旋轉到哪 一段。此外，在殼體1 1的旋繞方向，以在外部面對突起 29和凹部37的方式設有開口部，如此讓使用者能夠目視 確認突起29是卡合在哪個凹部。 又節流構件2 1和噴嘴構件3 1，只要相對地讓任一者 旋轉即可，是讓節流構件2 1旋轉亦可。 [省水器具的組裝] 依據以上構造之省水器具1，是如下述般進行組裝。 首先’如第5圖所示般’在節流構件21的連接凹部25讓 噴嘴構件3 1的圓筒部3 2嵌合’讓節流構件2 1的間隔件 突部27卡合於噴嘴構件31的卡合段部34，藉此將節流構 件2 1噴嘴構件3 1組合在一起。這時，讓節流構件2 1的 突起29卡合於任意的凹部37。 之後，與卽&構件21組合後的噴嘴構件31，讓凸緣 部35卡合於殼體11內的安裝段部I〗，而在殼體n內安 裝成從下側進行支承。 接者，在殻體11，在安裝開口部12側的安裝凹部14 讓環狀的襯墊1 4a卡合。在此，襯墊1 4a雖是與節流構件 •15- 201211356 2 1分開設置，但與節流構件2 1設置成一體亦可。之後， 將殼體1 1螺合於水龍頭2。襯墊14a壓接於水龍頭2，以 確保水龍頭2和殼體1 1間的水密性而防止漏水。 [省水器具的動作] 以上構造之省水器具1，若從水龍頭2的供水口 3供 水，水會通過節流構件21的第一孔部24和噴嘴構件3 1 的第二孔部3 3而供應至節流構件2 1和噴嘴構件3〗間的 空間部2 8。在空間部2 8，是藉由第一及第二孔部2 4，3 3 將水量減少而進行供應。而且，經由第二孔部3 3使水流 的方向轉彎，在空間部28使從第二孔部33的出口 33b流 出的水流相互碰撞，藉此將水壓減壓。然後，讓減壓後的 水從噴嘴構件3 1的出水孔3 6吐出。 •水量調節 水量調節，是讓噴嘴構件31相對於節流構件2 1旋轉 而進行。具體而言，當節流構件21的第一孔部24和第二 孔部33的入口 33a重疊程度最高時，例如第一孔部24和 第二孔部33的入口 33a完全一致時，成爲開口量最大的 狀態，水量變得最大。而且，如第6(A)圖、第6(B)圖所 示般，若第一孔部24和第二孔部33的入口 33a之重疊程 度變小，流路會變小，而使水量減少。第6 (c)圖係第一孔 部24和第二孔部33的入口 33a偏位最大’水量最小的狀 態。若進一步讓噴嘴構件3 1相對於節流構件2 1進行旋轉 -16- 201211356 ，如第6(D)圖所示般開口量再度變大’成爲與第6(B)圖 同程度的開口量，隨著旋轉能依序使開口量分段變化。 第6圖所示之開口量的分段切換，是藉由讓噴嘴構件 3 1旋轉來進行，在開口量最大的狀態’節流構件21的突 起29卡合於噴嘴構件31之最淺的凹部37a。隨著開口量 依序變小，突起29依序卡合於凹部37b，37c，如第6(C)圖 所示般當開口量最小時，是卡合於最深的凹部37d。如此 般，水量調節後的設定狀態，是藉由使突部29選擇性地 卡合於37a〜37d之任一者而保持住。 該噴嘴構件3 1的旋轉操作方法沒有特別的限定，可 在將省水器具1分解後的狀態下，相對於節流構件2 1讓 噴嘴構件31旋轉，或是不須分解而在組裝後的狀態下， 使用手指、治具，從殻體1 1的出水側開口部1 3讓噴嘴構 件31旋轉。再者，在噴嘴構件31設置面對殼體11外部 的操作突起，使用該操作突起讓噴嘴構件31旋轉亦可。 [省水器具的效果] 依據以上構造.的省水器具1，藉由使噴嘴構件3 1和節 流構件2 1相對旋轉，能輕易地調節第一孔部24和第二孔 部3 3的入口 3 3 a之重疊程度。亦即，水量的節流調整能 藉由讓噴嘴構件3 1旋轉而進行。如此般，省水器具1，可 按照省水器具1的安裝場所及用途而輕易地進行適當出水 量的調節。此外，由於能輕易地進行出水量調節，不須如 習知般準備多數個出水量調節用的減壓構件等。此外，讓 -17- 201211356 節流構件21的突起2 9選擇性地卡合於噴嘴構件3 1的凹 部37，可分段或連續地進行節流調整作業，而能輕易地進 行水量調節作業。 又在不須分段進行節流調節的情況，只要不設置突起 2 9和凹部3 7即可。特別是圓筒部3 2的外形成爲多角筒狀 ，且對應於此使節流構件31的連接凹部25內形成爲多角 柱狀的情況，由於不容易發生位置偏移，不設置突起29 和凹部37亦可。此外，複數凹部37的間隔不是一致亦可 [省水器具的變形例] 以下，參照圖式說明本發明的變形例之省水器具。 [整體構造] 如第7圖〜第9圖所示般，本發明所採用之省水器具 1 〇1係具備：安裝於自來水的水龍頭1 02之供水口 1 03的 殼體1 1 1、將從水龍頭1 02的供水口 1 03供應的出水量予 以節流之節流構件1 2 1、用來將水吐出之噴嘴構件1 3 1、 以及配設於殼體111內而防止水龍頭102和殼體111間發 生漏水之水密用的襯墊1 5 1。 [殼體的說明] 殼體111如第7圖〜第10圖所示般，是形成筒狀， 一端成爲安裝於水龍頭102等的供水口 103之安裝開口部 -18- 201211356 1 1 2，另一端成爲水吐出側之出水側開口部1 1 3。在安裝開 口部112的內周面形成有螺紋槽112a，藉由鎖緊於水龍頭 1〇2的螺紋部，而將殼體1 1 1安裝於水龍頭102等。當然 ，螺紋槽1 1 2 a的形成部位並不限於安裝開口部1 1 2的內 周面，例如是外周面亦可，此外，在供水口 103上安裝殼 體111的手段，並不限定於螺紋槽。 在該殼體111內的空間部，設置上述節流構件121、 噴嘴構件1 3 1、襯墊1 5 1。在出水側開口部1 1 3的附近形 成有段部1 1 4，供襯墊1 5 1之出水側開口部1 1 3側的前端 部卡合。藉由讓襯墊1 5 1之出水側開口部1 1 3側的前端部 卡合於段部114，而將襯墊151以定位狀態安裝於殼體 1 1 1 內。 出水側開口部1 1 3，係具備用來支承節流構件1 2 1和 噴嘴構件1 3 1的組裝體1 54之球面支承部1 1 3 a，再者，形 成有朝向前端側擴徑之出水口 113b。球面支承部 U3a， 是成爲具有與襯墊151的擴徑部153曲面相同曲率之曲面 ，藉由在噴嘴構件131的出水面131a附近支承組裝體154 ，而避免組裝體1 54從出水側開口部1 1 3脫落。亦即，該 球面支承部1 1 3 a，具有比組裝體1 5 4的最大直徑更小的直 徑部，而構成朝向外方呈凸狀的球面狀座面。此外，由於 出水口 1 1 3 b是形成朝向外方擴徑的形狀，即使讓出水面 1 3 1 a傾斜時，從噴嘴構件1 3 1的出水面1 3 1 a吐出之水流 仍不致接觸出水側開口部1 1 3的周緣。 -19- 201211356 [節流構件的說明] 節流構件1 21，如第7圖〜第9圖及第1 1圖所示般， 是呈大致碗形，在外側的彎曲面的頂部形成有突出部122 。在該突出部122的中央部，形成有貫穿厚度方向之通水 孔1 23。該通水孔1 23具有：朝向下游側形成凸狀之大致 圓錐狀的發條底部123a，在該發條底部123a，形成有從 上游側貫穿至下游側之複數個第一孔部124。複數個第一 孔部1 24，是等間隔地形成之大小相同的孔，在此，是等 間隔地配置於四角形的頂部位置之四個孔。 又第一孔部1 24並不限定於本例，例如只要使各孔部 的水量成爲均等即可，其數目、形狀、大小沒有特別的限 定。通水孔123是由複數個第一孔部124所構成，而能調 節從水龍頭1 02的供水口 1 03供應之水流量。 此外，在外側的彎曲面之相反側的底面，在通水孔 123的周圍形成有複數個封閉突起125，其等是成爲用來 控制噴嘴構件1 3 1的出水量之封閉手段。封閉突起1 25， 是以通水孔1 23爲中心等間隔地形成環狀。封閉突起1 25 ，將隨後說明之噴嘴構件1 3 1的出水孔1 3 2予以選擇性地 封閉。 再者，在底面形成有連續於彎曲面之環狀的導片126 。在導片126的前端部，形成有往內側突出之複數個導引 突起126a。導引突起126a，藉由卡合於隨後說明之噴嘴 構件1 3 1的導槽1 3 3，而相對於節流構件1 2 1能讓噴嘴構 件1 3 1旋轉。 -20- 201211356 [噴嘴構件的說明] 噴嘴構件131，如第7圖〜第9圖及第12圖所示般， 成爲大致圓柱狀，外周面以與節流構件1 2 1的彎曲面相同 的曲率形成彎曲。在該噴嘴構件131，形成有貫穿厚度方 向之多數個出水孔1 3 2。出水孔1 3 2大小爲例如直徑稍小 於1mm。而且，噴嘴構件131的底面成爲出水面131a， 是形成平坦狀。具體而言，在噴嘴構件131，複數個出水 孔132所構成之環狀的外周出水孔列132a和內周出水孔 列1 32b是排列成同心圓狀。外周出水孔列1 32a，是成爲 始終出水的部分，內周出水孔列1 32b，則是藉由節流構件 1 2 1的封閉突起1 25予以選擇性地封閉。 此外，構成內周出水孔列1 32b之出水孔132的孔徑 和構成外周出水孔列1 3 2 a之出水孔1 3 2的孔徑可爲相同 ，此外，構成內周出水孔列1 3 2b之出水孔1 3 2較大亦可 ，再者構成內周出水孔列1 3 2b之出水孔1 3 2較小亦可。 此外，出水面1 3 1 a，除了平坦面以外，也能形成爲中 心最凹陷之凹部（截面爲畫出擺線曲線的曲面）。當出水面 1 3 1 a由畫出擺線曲線的曲面所形成時，從出水孔1 32吐出 的水流較寬廣，而能讓從殼體1 1 1的出水側開口部1 1 3吐 出之水流整體看起來變粗。 具體而言，在內周出水孔列1 32b，如第1 3圖所示般 ，在構成內周出水孔列132b之各出水孔132的入口’形 成有供封閉突起125卡合之第一卡合凹部135»此外’在 -21 - 201211356 鄰接的出水孔1 32彼此間，形成有供封閉突起1 25卡合之 第二卡合凹部136。如第13(A)圖所示般，當封閉突起125 卡合於與出水孔132相連之第一卡合凹部135時，出水孔 1 3 2被封閉，而成爲從內周出水孔列1 3 2b無法出水的狀態 (省水位置）。另一方面，如第13(B)圖所示般，當封閉突 起125卡合於出水孔132,132間之第二卡合凹部136時， 出水孔1 3 2打開，而成爲從內周出水孔列1 3 2b也能出水 的狀態（準省水位置）。 在噴嘴構件1 3 1的外周上端部，形成有供節流構件 121的導引突起126a卡合之導槽133。藉由在導槽133讓 導引突起126a卡合，相對於節流構件12 1能讓噴嘴構件 131旋轉。而且，相對於節流構件121讓噴嘴構件131旋 轉，藉此可切換成：第13(A)圖所示之從內周出水孔列 1 3 2 b無法出水的狀態、或第1 3 (B )圖所示之從內周出水孔 列132b也能出水的狀態。 又在內周出水孔列〗32b，設置於鄰接的出水孔132彼 此間之第——^合凹部135的數目可爲一個或複數個。此外 ，封閉突起1 2 5的數目、間隔，是依從內周出水孔列1 3 2 b 吐出之出水量的切換段數而決定，在本發明沒有特別的限 定。此外，設置成同心圓狀之環狀的出水孔列，並不限定 成二列，可爲一列或三列以上。出水孔列爲一列的情況， 是選擇性地讓幾個出水孔藉由封閉突起予以封閉。此外， 出水孔列設置三列以上的情況，是讓全部或幾列的出水孔 列之出水孔，藉由封閉突起予以選擇性地封閉。 -22- 201211356 在噴嘴構件131的中央部形成有声裝孔134，以安裝 作爲水量調節手段之水量調節體141(用來調節節流構件 121之通水孔123的開口量）。該安裝孔134，是貫穿厚度 方向的貫通孔，係具有圓筒部13 4a，且在噴嘴構件131的 上面側形成有擴徑部134b。在圓筒部134a和擴徑部134b 之邊界部，沿著旋繞方向形成有縱向的凹凸槽134c，以抑 制水量調節體1 4 1旋轉時發生滑動。 [水量調節體的說明] 水量調節體141，如第7圖〜第9圖及第14圖所示般 係具有：形成流路之流路形成部142、插嵌於噴嘴構件 131之安裝孔134之嵌合部143，流路形成部142相對於 嵌合部143成爲擴徑的形狀。在流路形成部142形成有： 與位於節流構件1 2 1的通水孔1 23之第一孔部1 24相對應 之複數個第二孔部144»複數個第二孔部144，對應於第 一孔部1 24的數目，將相同大小的孔等間隔地，在此是將 四個孔等間隔地配置於四角形的頂部位置。各第二孔部 144，是由上面與側面開口之大致L字狀的流路所形成， 在上面形成入口 144a，在側面形成出口 144b。第二孔部 1 44，並不限定於本例，例如只要能使各孔部的水流穩定 ，其數目、形狀、大小沒有特別的限定。 節流構件1 2 1的第一孔部1 24和水量調節體1 4 1的第 二孔部144之入口 144a的重疊程度最高時，例如第一孔 部124和水量調節體141的第二孔部144之入口 M4a完 -23- 201211356 全一致時，成爲開口量最大的狀態’出水量變得最大。而 且，如第15(A)圖、第15(B)圖所示般’若第一孔部124 和第二孔部144的入口 144a之重疊程度變小，流路縮窄 ，出水量變小。第15(C)圖顯示’第一孔部1 24和第二孔 部144的入口 144a偏位最大’出水量最小的狀態。若進 一步讓水量調節體1 4 1相對於節流構件1 2 1進行旋轉，如 第15(D)圖所示般開口量再度變大，成爲與第15(B)圖同 程度的開口量，隨著旋轉能依序使開口量分段變化。 流路形成部142之形成有入口 144a的上面，是形成 中央部最低’藉此將水量調節體141的旋轉中心軸定位成 不致發生偏移、振動，藉由節流構件121的發條底部123a 所產生之向外的彈壓力，可將水量調節體141始終彈壓， 以將流路形成部1 42和穿設於噴嘴構件1 3 1中央之安裝孔 134的擴徑部134b之接觸面的水密性提高，並防止水量調 節體141發生意料外的旋轉》 又第一及第二孔部1 24,144的數目沒有特別的限定。 此外’第一及第二孔部124,144，可設置成形成具有二個 以上分支的流路’較佳爲，如上述般朝四方向等間隔地配 置於四角形的頂部位置。此外，第—及第二孔部i 24,丨44 的形狀並不限定於圓形，亦可爲菱形等的四角形、其他多 角形。亦即’第二孔部1 44，例如只要使各孔部的水流穩 定即可’其數目、形狀、大小沒有特別的限定。 具有以上構造之流路形成部142，是嵌合在位於噴嘴 構件131中央之安裝孔134的擴徑部134b，以在其等的抵 -24- 201211356 接面獲得水密性。與流路形成部1 42形成一體的嵌合部 143，是嵌合在位於噴嘴構件131中央之安裝孔134的圓 筒部134a。嵌合部143的長度是形成比安裝孔134之出水 面131a稍突出的長度，其前端面成爲觸感良好的圓弧狀 面。在前端面可設有：用來旋轉水量調節體141之「十字 」、「一字」之螺絲起子的槽等。 此外，在嵌合部143和流路形成部142之邊界部分形 成有凹凸部145，該凹凸部145可卡合於在噴嘴構件131 之安裝孔134的內周面上所形成之凹凸槽13 4c。藉由使凹 凸部145與凹凸槽134c卡合，可抑制水量調節體141旋 轉時發生滑動。 水量調節體141，是將嵌合部143嵌合於噴嘴構件 131的安裝孔134之圓筒部134a，並將流路形成部142壓 接於擴徑部134b，藉此安裝於噴嘴構件131之安裝孔134 。如此，在流路形成部1 42的上面和噴嘴構件1 3 1之形成 有第一孔部124的底面之間，讓封閉突起125抵觸第一卡 合凹部135或第二卡合凹部136而形成空間部146。在空 間部146，讓從水量調節體141之第二孔部144的出口 H4b流出之水流互相碰撞而將水壓減低。水量調節體1 4 i 安裝於安裝孔134時’嵌合部143的前端部是從噴嘴構件 131的出水面131a突出。 如第8圖及第9圖所示般，要調節流量時，是按壓從 出水面131a突出之嵌合部143的前端部而使其上昇，藉 此解除凹凸槽134c和凹凸部145的卡合狀態，在此解除 -25- 201211356 狀態下，可旋轉水量調節體1 4 1。 [襯墊的說明] 襯墊151例如爲橡膠襯墊，如第7圖〜第9圖及第16 圖所示般，是讓圓筒部1 52和擴徑部1 53以中心軸線一致 的方式形成一體。擴徑部I53的彎曲面，是對應於節流構 件121之外側彎曲面的曲率及噴嘴構件ι31之外周面的曲 率而成爲球面狀座面。擴徑部153的前端部，在插入殼體 1 1 1時’可卡合於殻體1丨〗之出水側開口部丨丨3附近的段 部114。此外，在圓筒部152的前端部之外周面形成有卡 合段部156。在該卡合段部156，例如讓水龍頭1〇2的前 端卡合。如此，襯墊1 5 1，是讓位於出水側開口部1 1 3側 之前端部卡合於段部114，並在卡合段部156讓水龍頭 102卡合壓接’藉此防止水龍頭1 〇2和殼體1 1 1間發生漏 水。 如第7圖〜第9圖所示般，在噴嘴構件131安裝水量 調節體1 4 1，然後組裝在節流構件1 2、1而構成的組裝體 B4，是呈大致半球狀，可沿著擴徑部153的球面座面滑 動，而改變噴嘴構件131之出水面131a的角度。在襯墊 1 5 1的圓筒部1 52和擴徑部1 53所構成之外側的角部，讓 滑動的組裝體1 54之突出部1 22、亦即節流構件1 2 1的突 出部1 22卡合，而成爲限制可動範圍之限制部1 5 5。 [省水器具的組裝] -26- 201211356 依據以上構造之省水器具1 0 1，如下述般進行組裝。 首先，在噴嘴構件131之安裝孔134，如第15圖所示般’ 調整節流構件1 2 1之第一孔部1 24和水量調節體1 4 1之第 二孔部144的入口 144 a之重疊程度而安裝水量調節體Ml 。接著，將噴嘴構件1 3 1與節流構件1 2 1組合成組裝體 154。 將該組裝體154組合於襯墊151。具體而言，以讓節 流構件121之突出部122面對襯墊151之圓筒部152的方 式組合於襯墊151的擴徑部153內》然後，將組合有組裝 體154之襯墊151配設於殻體111內。具體而言，讓襯墊 1 5 1之位於出水側開口部1 1 3側的前端部卡合於段部1 1 4 〇 然後，將殼體111之位於安裝開口部112的內周面之 螺紋槽112a鎖緊於水龍頭102之螺紋部，藉此將殼體111 安裝於水龍頭102等。在襯墊151之卡合段部156讓水龍 頭1 02卡合壓接，藉此防止在水龍頭1 02和殼體1 1 1間發 生漏水。 [省水器具的動作] 以上構造的省水器具101，若從水龍頭102的供水口 103供應水，水會從節流構件121的通水孔123通過第一 孔部1 24和水量調節體1 4 1之第二孔部1 44而供應給節流 構件1 2 1和噴嘴構件1 3 1間的空間部1 46。在空間部1 46 ，是藉由節流構件1 2 1等將出水量減少而進行供應。而且 -27- 201211356 ，經由第二孔部1 44使水流的方向轉彎，在空間部1 46 從第二孔部144的出口 144b流出的水流相互碰撞，藉 將水壓減壓。然後，讓減壓後的水從噴嘴構件1 3 1的出 孔1 3 2吐出》 •出水方向的調節 以上構造的省水器具101，如第8圖及第9圖所示 ，噴嘴構件1 3 1與節流構件1 2 1組合成的組裝體1 5 4， 在上半球加入下半球的一部分而成爲比完全的半球體更 的形狀。亦即，該組裝體154，成爲包含該組裝體154 球體的最大直徑爲R1之半球體，出水面131a的直徑 比最大直徑R1稍小。而且，組裝體154，是由節流構 1 2 1的外面和噴嘴構件1 3 1的外面構成連續的大致半球 狀之外表面。 構成襯墊151的擴徑部153之球面和殼體111的出 側開口部1 1 3附近之球面支承部1 1 3 a，是成爲與組裝 154外表面所構成之大致半球面對應的連續球面，而成 可容許組裝體154的轉動所伴隨的滑動之球面座面。 又在本發明，只要至少襯墊151的擴徑部153成爲 面座面即可，由於組裝體154可轉動，殼體111的球面 承部113a不一定要成爲球面座面》 再者，球面支承部1 13a的直徑R3是比組裝體154 最大直徑R1更小，以避免組裝體154從殻體1 1 1脫落。 因此，組裝體1 54，例如，用手指等將出水面1 3 1 a 使 此 水 般 是 大 之 R2 件 面 水 體 爲 球 支 的 偏 -28- 201211356 壓地按壓，在讓節流構件1 2 1的突出部1 2 2抵觸到襯墊 1 5 1之限制部1 5 5爲止的範圍內，可傾斜自如。此外，在 出水中，利用在襯墊1 5 1的內側空間發生的內壓，可將節 流構件121、噴嘴構件131壓接於襯墊151。因此，出水 面131a之調節後的傾角，在使用中並不會偏移。 第17(A)圖及第18(A)圖係顯示出水面131a傾角爲0。 而使出水方向成爲鉛直的狀態。此外，第17(B)圖及第 18(B)圖係顯示出水面131a朝一方向最傾斜的狀態。在此 狀態下，構成組裝體1 54之節流構件1 2 1的突出部1 22抵 觸於襯墊151的限制部155，而使出水面131a無法進一步 傾斜。再者，第17(C)圖及第18(C)圖係顯示出水面131a 朝另一方向最傾斜的狀態。在此狀態也是，構成組裝體 154之節流構件121的突出部122抵觸於襯墊151的限制 部155，而使出水面131a無法進一步傾斜。 又在進行此出水方向的調節時，不一定要設置上述水 量調節體141。在未設置水量調節體141的情況，只要設 置噴嘴構件1 3 1的安裝孔1 3 4即可。此外，組裝體1 5 4也 可以是完全的半球體。 •第一水量調節 省水器具1 〇 1，是讓噴嘴構件1 3 1相對於節流構件 121旋轉，而能調節省水程度。具體而言，在該省水器具 1 〇 1，是始終從外周出水孔列1 3 2 a出水，而使所吐出的水 流始終看起來較粗。相對於此，在內周出水孔列1 3 2b，是 -29- 201211356 藉由節流構件121之封閉突起125將噴嘴構件131之出水孔 132選擇性地封閉。具體而言，如第13(A)圖及第17(A)〜 (C)圖所示般，當封閉突起125卡合於與出水孔132連續 之第一卡合凹部135時，出水孔132被封閉，而成爲從內 周出水孔列1 3 2b無法出水的狀態（省水位置）。另一方面， 如第13(B)圖及第18(A)〜（C)圖所示般，當封閉突起125 卡合於出水孔132,132間之第二卡合凹部136時，出水孔 132打開，而成爲從內周出水孔列132b也能出水的狀態（ 準省水位置）。亦即，當噴嘴構件1 3 1位於準省水位置時 ，出水面1 3 1 a的流線爲雙層，當位於省水位置時流線僅 爲單層。 在省水器具1 〇 1，始終，當噴嘴構件1 3 1位於省水位 置時，從外周出水孔列1 32a出水，從其內側之內周出水 孔列1 3 2b則不出水。因此，在省水器具1 0 1，由於是讓內 周出水孔列1 3 2b無法出水，能ifl外觀看來出水量並未減 少的方式進行省水。 該噴嘴構件1 3 1之旋轉操作方法沒有特別的限定，可 在將省水器具1 〇 1分解後的狀態下，相對於節流構件1 2 1 讓噴嘴構件1 3 1旋轉，或是不須分解而在組裝後的狀態下 ，使用手指、治具，從殼體1 1 1的出水側開口部1 1 3讓噴 嘴構件131旋轉。再者，在噴嘴構件131設置面對殼體 1 1 1外部的操作突起，使用該操作突起讓噴嘴構件1 3 1旋 轉亦可。此外，在節流構件121、噴嘴構件131的任一方 設置突起，在另一方設置讓突起選擇性地卡合之複數個凹 -30- 201211356 部，藉由讓節流構件121和噴嘴構件131相對旋轉，讓突 起選擇注地卡α於凹部，而將節流構件1S1和噴嘴構件 131的相對位置保持一定亦可。再者，在殼體lu設置開 口部以看見是在哪個凹部讓突起部卡合，而能目視確認設 定狀態亦可。 又在進行此省水調節時，不—定要設置上述水量調節 體141。在未設置水量調節體141的情況，只要如上述般 設置噴嘴構件131的安裝孔134即可。 •第二水量調節 在省水器具101’藉由讓水量調節體141旋轉而能調 節出水量。當節流構件1 2 1之第一孔部1 24和水量調節體 Ml之第二孔部I44的入口 144a之重疊程度最高時，成爲 開口量最大的狀態，出水量變得最多。而且，如第15(A) 圖、第15(B)圖所示般，若第一孔部124和第二孔部144 的入口 144a之重疊程度變小，流路會變小，而使出水量 減少。第15(C)圖係第一孔部124和第二孔部144的入口 1 44a偏位最大，出水量最小的狀態。若進一步讓水量調節 體141相對於節流構件121進行旋轉，如第15(D)圖所示 般開口量再度變大，成爲與第15(B)圖同程度的開口量’ 隨著旋轉能依序使開口量分段或連續地變化。 該水量調節，例如在省水器具1 〇 1組裝狀態下’按壓 從出水面131a突出之嵌合部143的前端部而使其上昇’ 藉此將凹凸槽134c和凹凸部145之卡合狀態解除或減弱 -31 - 201211356 而釋放，在該釋放狀態下，藉由讓水量調節體141旋轉而 進行。 [省水器具的效果] 依據以上構造之省水器具101，藉由在殼體111內設 置節流構件1 2 1和噴嘴構件1 3 1，可將出水量減少而進行 省水。具體而言，藉由節流構件節流後的水流，進一步藉 由噴嘴構件1 3 1調節成適度的出水量和水勢而從出水孔列 13 2a，132b吐出，因此能進行使用感良好的省水。再者， 藉由水量調節體1 4 1，也能從外部經由簡單的操作調節供 應給出水孔列132a，132b之出水量，如此，可進行水壓、 出水量之微調。 此外，節流構件1 2 1和噴嘴構件1 3 1之組裝體1 5 4， 是可滑動地安裝於襯墊151內，而使出水面131a的角度 成爲可變。因此，從外部經由簡單的操作可輕易地調節水 的吐出方向。如此，在省水狀態下，即使水壓上昇時，藉 由調節吐出方向，可防止水滴飛濺到面盆外而將面盆周圍 弄髒。亦即，在省水器具1 01，在出水、水滴不致飛濺到 面盆外的範圍內，爲了使用方便能輕易地將出水量、吐出 方向予以微調。 [省水器具的變形例] 以上雖是針對本發明所採用的省水器具1，1 〇 1做說明 ，但省水器具1，1 0〗僅是本發明的一例’省水器具1在不 -32- 201211356 脫離本發明主旨的範圍內能進行各種變形。 【圖式簡單說明】 第1圖係運用本發明之省水器具的分解截面圖。 第2圖係運用本發明的省水器具之截面圖。 第3圖係顯不節流構件的圖，（A )爲俯視圖，（B )爲側 視圖，（C)爲截面圖，（D)爲仰視圖。 第4圖係顯示噴嘴構件的圖，（A)爲俯視圖，（B)爲側 視圖，（C)爲截面圖，（D)爲仰視圖。 第5圖是將節流構件和噴嘴構件組合，且將節流構件 以截面表示之側視圖。 第6圖係顯示節流構件的第一孔部和噴嘴構件的第二 孔部之重疊程度的俯視圖，（A)表示稍打開的狀態，（B)表 示進一步封閉的的狀態，（C)表示最封閉的狀態，（D)表示 再度增大開口量而成爲與（B)同程度的打開狀態。 第7圖係本發明的變形例之省水器具的分解截面圖。 第8圖係上述變形例之省水器具之形成有外周出水孔 列的出水孔和內周出水孔列的出水孔的位置之截面圖。 第9圖係上述變形例之省水器具之僅形成有外周出水 孔列的出水孔的位置之截面圖。 第10圖係顯示殼體，（A)爲俯視圖，（B)爲截面圖， (C)爲仰視圖。 第1 1圖係顯示節流構件，（A)爲俯視圖，（B)爲截面 圖，（C)爲仰視圖。 -33- 201211356 第12圖係顯示噴嘴構件，（A)爲俯視圖，（B)爲形成 有外周出水孔列的出水孔和內周出水孔列的出水孔的位置 之A - A ’截面圖’（c)爲僅形成有外周出水孔列的出水孔的 位置之B - B ’截面圖，（D)爲仰視圖。 第1 3圖係顯示封閉突起和卡合凹部的關係之沿著內 周出水孔列之截面圖，（A)顯示封閉突起將出水孔封閉的 狀態’（B)顯示出水孔打開的狀態。 第14圖係顯示水量調節體，（a)爲俯視圖，（B)爲截 面圖，（C)爲側視圖。 第15圖係顯示節流構件的第一孔部和水量調節體的 第二孔部之重疊程度的俯視圖，（A)表示稍打開的狀態， (B)表示進一步封閉的的狀態，（C)表示最封閉的狀態，（D) 表示再度增大開口量而成爲與（B)同程度的打開狀態。 第16圖係顯示襯墊的圖，（A)爲俯視圖，（B)爲截面 圖，（C)爲仰視圖。 第1 7圖係顯示運用本發明的省水器具僅從外周出水 孔列進行出水的狀態之截面圖，（A)爲朝向正下方出水的 狀態，（B )爲朝向圖中左側出水的狀態，（C)爲朝向圖中右 側出水的狀態。 第18圖係顯示運用本發明的省水器具從外周及內周 的出水孔列進行出水的狀態之截面圖，（A)爲朝向正下方 出水的狀態，（B)爲朝向圖中左側出水的狀態，（C)爲朝向 圖中右側出水的狀態。 -34- 201211356 【主要元件符號說明】 1，1 〇 1 :省水器具 2，1 0 2 :水龍頭 1 1，1 1 1 :殼體 1 2，1 1 2 :安裝開口部 12a，l 12a :螺紋槽 1 3，1 1 3 :出水側開口部 1 4 :安裝凹部 14a :襯墊 1 5 :安裝段部 2 1 :節流構件 2 2，2 3 :凸緣部 24 :第一孔部 25 :連接凹部 26 :環狀凹部 27 =間隔件突部 2 8 :空間部 29 :突起 3 1，1 3 1 :噴嘴構件 3 1 a :出水面 3 2 :圓筒部 3 3 :第二孔部 33a :入口 33b :出口 201211356 3 4 :卡合段部 3 5 :凸緣部 3 6 :出水孔 3 7,3 7 - 3 7d ：凹部 113a:球面支承部 113b:出水口 1 1 4 :段部 1 2 1 :節流構件 122 :突出部 1 2 3 :通水孔 1 2 3 a :發條底部 124 :第一孔部 1 2 5 :封閉突起 126 :導片 126a :導引突起 1 3 1 a :出水面 1 3 2 :出水孔 1 3 2 a :外周出水孔列 1 3 2 b :內周出水孔列 1 33 :導槽 1 3 4 :安裝孔 1 3 4 a :圓筒部 13 4b :擴徑部 134c :凹凸槽 -36 201211356 135 :第一卡合凹部 1 3 6 :第二卡合凹部 1 4 1 :水量調節體 142 :流路形成部 143 :嵌合部 144 :第二孔部 1 44a :入口 144b ：出口 1 4 5 :凹凸部 1 4 6 :空間部 151 :襯墊 1 5 2 :圓筒部 1 5 3 :擴徑部 154 :組裝體 1 5 5 :限制部 1 5 6 :卡合段部 161 :突起 1 6 2 :凹部[Technical Field] The present invention relates to a water-saving appliance that can be arbitrarily adjusted to the amount of water that is attached to a water supply port of a faucet or the like. The present application claims priority on the basis of Japanese Patent Application No. 20 1 0 - 1 34 1 76, which is filed on June 11, 2010 in Japan, the disclosure of which is incorporated herein by reference. [Prior Art] The applicant has previously proposed a water-saving device described in Patent Document 1 below. In the water-saving device, a decompression member and a water-saving member are sequentially disposed in the casing, and the pressure of the water flowing from the faucet is decompressed by the decompression member, and the water is retained in the space between the decompression member and the water-saving member. After that, the water is discharged from the water outlet of the water-saving member. The decompression member also functions as a throttle member that throttles the flow of water from the faucet, and determines the amount of water supplied to the outlet. Further, in the water-saving appliance of Patent Document 1, water is saved by adjusting the water pressure, and by reducing the water pressure, it is possible to prevent the water discharged from the water outlet from splashing and smudging the surrounding environment. [Patent Document 1] [Patent Document 1] International Publication No. 2009/044703 [Summary of the Invention] However, the water pressure of the faucet varies depending on the water supply equipment of the building and the number of floors -5 - 201211356, and is not the same. In addition, depending on the faucet of the kitchen equipment or the faucet of the washstand, the required amount of water and water pressure are also different. Furthermore, the water volume and water pressure preference of the faucet will vary depending on the user. In order to cope with such a request, it is necessary to prepare a plurality of kinds of decompression members in advance, and to select a desired decompression member from among the decompression members prepared in advance in order to cope with such a request. The work of selecting a pressure reducing member in accordance with the construction site is a work that requires sufficient experience, and the replacement of the pressure reducing member requires re-disassembly of the water-saving appliance, which is troublesome. In general, the installation of water-saving appliances is carried out during the operation of the equipment, so it must be completed in a short period of time. Further, in order to prevent splashing of water discharged from the water outlet hole, in addition to the water pressure, the relationship between the discharge direction control and the water pressure and the amount of water is also important. For example, when spitting water on the washbasin of the washstand, if the water pressure is high and the amount of water is too much, the water droplets may splash outside the basin. Especially when spitting water above the basin, the water droplets can easily splash out of the basin. SUMMARY OF THE INVENTION An object of the present invention is to provide a water saving appliance which is easy to adjust the amount of water discharged. Further, it is an object of the present invention to provide a water-saving appliance which can limit the amount of water discharged and which can easily adjust the discharge direction of water. In order to solve the problem, the water-saving appliance according to the present invention includes a substantially cylindrical casing, a throttle member and a nozzle member provided in the casing, and the casing has a mounting opening that can be attached to the water supply port. a water outlet side opening that opens toward the water outlet side; the throttle member is formed with a first hole that throttles the water flow supplied from the water supply port -6-201211356, and the water outlet surface of the water outlet side opening portion is provided with the first The water flow of the second two-hole portion connected to the hole portion is discharged from the water discharge surface by changing the first hole portion and the first amount by allowing the first hole portion and the upper portion. In other words, in the first hole portion and the upper portion, the water outlet hole may penetrate the water portion in the second hole portion of the throttle member and the nozzle to reach the space portion of the pressure. Further, a protrusion may be formed in the throttle member, and the recessed portion may be formed on the other side, and the amount of displacement of the throttle member and the protrusion selectively engaged with the second hole portion may be set. The second hole portion can adjust the amount of water that can be rotated by the nozzle member. The nozzle member can be formed into an annular water discharge hole array, and any one of the plurality of water outlet holes can be opposite to the above-mentioned nozzle member. The member is switched to rotate or rotate any of the above-mentioned water outlet holes; the nozzle member has a surface, a perforated portion on the opposite side of the water outlet surface, and a plurality of water outlet holes from the first through . The second hole portions are rotated relative to each other, and the amount of deflection of the two hole portions is adjusted so that the second hole portions can overlap and communicate. Around the above water surface. Further, between the members, a plurality of the nozzle members that are caused to collide with each other during the period from the upper water outlet hole and which are selectively engaged with one of the square projections of the nozzle member are relatively rotated, and the concave portion is formed, and the first portion is formed The hole and state remain constant. It is formed to be mounted relative to the above body. The throttling member formed by the plurality of water outlet holes may have a closed protrusion selectively closed, and the flow member is rotated, and the water discharge hole of the nozzle is opened by the quasi-water-saving position water outlet hole by the above-mentioned closed protrusion to 201211356 In order to close the water location. Preferably, in the nozzle member, a plurality of the annular water outlet rows are arranged concentrically, and the arbitrary annular water discharge hole array is closed by the closing protrusion of the throttle member by rotation. Further, the water-saving position may include a gasket disposed in the casing, and an outer surface of the assembly of the throttle member and the nozzle member may be formed in a substantially hemispherical shape including a maximum diameter portion of the spherical body, and the gasket may be formed. The surface that is in contact with the outer surface of the substantially hemispherical surface of the assembly is a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly, and the water outlet side opening portion and the assembly body The inner peripheral portion that is in contact with each other has an inner diameter portion that is smaller than the maximum outer diameter of the assembly, and the assembly is disposed such that the water discharge surface faces the outside from the water outlet side opening portion. The substantially spherical seating surface of the spacer slides to change the angle of the water outlet surface. In this case, the inner peripheral portion of the water discharge side opening portion that is in contact with the assembly body may be a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly. Further, the throttle member may be configured such that the inlet of the water-passing hole is a protruding portion, and the protruding portion is in contact with the inner peripheral wall of the spacer to restrict the movable range of the assembly. Further, the assembly of the throttle member and the nozzle member may have a substantially hemispherical shape including a largest diameter portion of the spherical body and a surface having a diameter equal to or smaller than the maximum diameter on the water discharge side opening portion side, and the diameter is the maximum diameter or less. The face is the above-mentioned water surface. According to the present invention, by rotating the first hole portion and the second hole portion to each other -8 - 201211356, the amount of deflection of the first hole portion and the second hole portion can be changed to adjust the amount of water discharged. Therefore, the adjustment of the amount of water can be easily performed. That is, the water discharge amount can be easily adjusted in accordance with the installation place and use of the water-saving appliance. Further, by relatively rotating the throttle member and the nozzle member, the protrusions provided on one of the protrusions are selectively engaged with the plurality of recesses provided on the other side, and the first hole portion and the second hole portion can be displaced. The setting state of the quantity is kept constant, and the switching of the water discharge amount can be easily performed. Further, an annular water discharge hole array formed by a plurality of water outlet holes is provided, and any water outlet holes are selectively closed by the closing projections, so that the water discharge amount can be easily adjusted. Further, the outer surface of the assembly of the throttle member and the nozzle member is formed in a substantially hemispherical shape, and the surface of the spacer that is in contact with the substantially hemispherical outer surface of the assembly is substantially hemispherical to the assembly. The outer surface corresponds to a substantially spherical seating surface, whereby the water discharge direction can be easily changed. Further, the adjustment of the discharge direction of the water can be realized in accordance with the structure of the water-saving device described below. In other words, the water saving device includes a substantially cylindrical casing, a throttle member, a nozzle member, and a gasket provided in the casing: the casing has a mounting opening that can be attached to the water supply port, and the water is discharged a water outlet side opening portion of the side opening; the throttle member is formed with a water passing hole for throttling the water flow supplied from the water supply port; the nozzle member is provided with a plurality of water outlet holes connected to the water passing hole, And a water discharge surface facing the water discharge side opening portion, which is combined with the throttle member to form an assembly; the gasket is disposed in the casing to ensure watertightness with the assembly and It is watertight with the above water supply port. Further, the outer surface of the assembly including the throttled 201211356 member and the nozzle member is formed into a substantially hemispherical shape. Further, the surface of the spacer that is in contact with the substantially hemispherical outer surface of the assembly is a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly. The inner peripheral portion of the outlet side opening portion that is in contact with the assembly has an inner diameter portion that is smaller than the maximum outer diameter of the assembly. In this manner, the assembly is disposed so as to be slidable relative to the substantially spherical seating surface of the spacer, and the setting of the angle of the water outlet surface can be easily changed. Moreover, in the water-saving state, even if the water pressure rises, by adjusting the discharge direction, it is possible to prevent the water and water droplets from splashing out of the basin and staining the periphery of the basin. [Embodiment] Hereinafter, a water-saving appliance used in the present invention will be described with reference to the drawings. [Overall structure] As shown in Fig. 1 and Fig. 2, the water-saving appliance 1 used in the present invention includes a casing 水 of a faucet 2 attached to tap water, and the amount of water supplied from the faucet 2 is throttled. The throttle member 21 is provided with a nozzle member 31 for spitting water. [Description of the casing] As shown in Fig. 1 and Fig. 2, the casing 11 is formed in a tubular shape. The one end is attached to the water supply port 3 of the faucet 2 and the like, and the other end is the discharge water flow side. The outlet side opening portion 13 of the opening. A screw groove 12a is formed in the inner peripheral surface of the mounting portion -10-201211356, and the housing cymbal is attached to the faucet 2 or the like by being locked to the threaded portion of the faucet 2. Needless to say, the portion where the screw groove 12a is formed is not limited to the inner circumferential surface of the attachment opening portion 12, and may be, for example, an outer circumferential surface, and the means for attaching the casing 11 to the water supply port 3 is not limited to the screw groove. The throttle member 21 and the nozzle member 31 are accommodated in a space portion in the casing 11. A mounting recess 14 for mounting the spacer 14a is formed on the lower side of the thread groove 12a. The gasket 14a is for preventing water leakage between the faucet 2 and the casing 11, and is formed, for example, by a ring-shaped rubber mat. Further, in the present invention, the spacer is not a necessary member. For example, the throttle member 21 may have an effect equivalent to that of the spacer so as to ensure watertightness. When the spacer 14a is attached to the mounting recess 14 and the screw groove 12a is locked to the threaded portion of the faucet 2 to be crimped to the faucet 2, watertightness between the faucet 2 and the housing 1 1 can be ensured to prevent water leakage. Further, an attachment portion 15 for mounting the nozzle member 31 is formed on the inner peripheral surface of the casing 1 on the water discharge side opening portion 13 side. The nozzle member 31 is engaged with the mounting portion 15 to prevent it from coming off the water outlet side opening portion 13. In the casing 11, a throttle member 21 is disposed above the nozzle member 31. [Description of Throttle Member] As shown in Figs. 1 to 3, the flow member 2 is formed in a substantially cylindrical shape, and flange portions 22 and 23 are formed above and below. The throttle member 21 is formed in a substantially central portion of the upper surface of the upper flange 22, and is formed in the thickness direction to form a first hole portion 24 as a water passing hole. The first hole portion 24 is equidistantly arranged -11 - 201211356 and placed at the top position of the quadrangle to provide four, which makes the water flow stable. Further, the first hole portion 24 is not particularly limited in this example, and for example, the water flow in each hole portion can be stabilized. The number, shape and size thereof are not particularly limited. The plurality of first holes 24 are for restricting the flow of water supplied from the water supply port 3 of the faucet 2. The first hole portion 24 is formed not in the entire thickness direction but on the side of the attachment opening portion 12, and the throttle member 21 is formed with a projection that is continuous with the plurality of first hole portions 24 and opened on the downstream side. A substantially cylindrical connecting recess 25 at the center of the edge portion 23. The cylindrical portion 32 of the nozzle member 31 is fitted in the connection recess 25. A bottomed annular recess 26 is formed around the plurality of first hole portions 24. In the present invention, the annular recessed portion 26 is not an essential member. However, when the throttle member 21 is formed by resin molding, it is possible to save material and to suppress a decrease in dimensional stability during molding. In the other flange portion 23, a spacer projection 27 that protrudes downward is formed in an annular shape on the outer peripheral portion. The spacer protrusion 27 is for positioning the nozzle member 3 disposed on the lower side of the throttle member 21, and a space portion 28 for decompressing is formed between the throttle member 21 and the nozzle member 3? Watertightness around the joint portion of the throttle member 21 and the nozzle member 31 can be ensured, and water leakage from the periphery of the contact portion between the nozzle member 21 and the casing 11 can be prevented. Further, a projection 29 is formed on the front end surface of the spacer projection 27. The projection 29 is selectively engageable with a plurality of recesses ′ formed on the nozzle member 31 to be described later, and the segmentation adjustment is performed while visually confirming the rotational position of the nozzle member 31 with respect to the throttle member 2 i. -12-201211356 [Description of Nozzle Member] The nozzle member 31 has a substantially cylindrical shape as shown in Figs. 1, 2, and 4, and a cylindrical portion 32 is formed at the center portion of the upper surface. Of course, the cylindrical portion 32 formed at the central portion of the upper surface of the nozzle member is not necessarily cylindrical, and for example, a polygonal tube shape can be formed as long as a certain portion can be obtained around the first hole portion and the second hole portion and the abutting portion. The degree of watertightness is not particularly limited. In the cylindrical portion 32, a plurality of second holes 33 are formed corresponding to the plurality of first holes 24 of the throttle member 2 1 . Each of the second hole portions 33 has an inlet 33a that is continuous with the first hole portion 24 on the front end surface of the cylindrical portion 32, and an outlet 33b is formed on the side surface to make the flow path substantially L-shaped. Further, the second hole portion 3 3 ' is not limited to this example, and the number, shape, and size thereof are not particularly limited as long as the water flow in each hole portion is stabilized. The cylindrical portion 3 2 ' is a connecting recess portion 25 formed to be fitted to the downstream side of the throttle member 21. Thereby, the first hole portion 24 of the throttle member 21 and the second hole portion 33 of the nozzle member 31 are overlapped and connected in the water flow direction. Therefore, water passing through the first and second holes 24, 3 3 can flow out from the outlet 33b to the upper surface of the nozzle member 3 1 . On the upper surface of the nozzle member 31, an engagement portion 34 is formed on the outer peripheral portion. The engaging portion portion 34 is engaged with the spacer projection 27 which is formed in an annular shape below the throttle member 21. Thereby, the nozzle member 31 can be positioned and attached to the downstream side of the throttle member 21 in a state where the space portion 28 is formed. Further, the engaging section portion 34 can ensure the watertightness between the throttle member 21 and the nozzle member 31 by being engaged with the spacer projection 27 of the throttle member 21, and in the relative -13 - 201211356 When the flow member 21 rotates the nozzle member 31 around the cylindrical portion 32 (fitted to the connection concave portion 25 of the throttle member 21), the flow portion 21 can function as a guide portion. Further, when the outer shape of the cylindrical portion 32 is a polygonal cylindrical shape, and the inside of the connecting concave portion 25 of the throttle member 31 is formed into a polygonal column shape, the throttle member 21 and the nozzle member 3 1 are adjusted each time. When the relative rotation is performed, it is necessary to separate and pull out each other, and instead, it is possible to obtain an effect of not causing a positional shift as long as they do not leave each other. Therefore, in this case, the amount of water discharged is not caused by an externally inadvertent force or the like. The portion where the engaging portion portion 34 is formed is a flange portion 35 which is supported from the lower side by the mounting portion portion 15 of the casing 1 1. In the nozzle member 31, a plurality of water discharge holes 36 are formed on the downstream surface from the upstream surface to the water discharge surface 31a. The water outlet hole 36 is formed inside the engaging portion 34 and is formed at a position away from the outlet 33b of the second hole portion 33. The nozzle holes 36 are arranged in a ring shape on the outer peripheral side of the nozzle member 31, and the number of rows may be two or three or more. The downstream surface of the nozzle member 31, that is, the water outlet surface 3 1 a facing the outside from the water outlet side opening portion 13 of the casing 1 1 can be formed into a flat shape, but here is a recessed portion having the most concave portion at the center (the cross section is The way in which the surface of the cycloid curve is drawn is formed. When the water surface 3 1 a is formed by the curved surface on which the cycloid curve is drawn, the water discharged from the water outlet hole 36 is wider, and can be made from the casing 1 1 . The water flow discharged from the outlet side opening portion 13 3 looks thick as a whole. Further, a plurality of (here, four) recesses 37 are formed in the flange portion 35 of the nozzle member 31. The recessed portion 37 is opened on the upstream side of the flange portion 35 and on the side surface, and the depth from the upstream surface is formed to be different from each other. Specifically, the concave portion 37a on one end side is formed shallowest, the concave portion 37b and the concave portion 37c are sequentially deepened, and the concave portion 37d is formed deepest. In the concave portions 37a to 37d, the projections 29 of the front end faces of the spacer projections 27 of the throttle member 21 are selectively engaged. When the projections 29 move toward the adjacent concave portions 37, a feeling of clicking occurs between the concave portions 37, and the user can know which portion the nozzle member 31 is rotated. Further, in the winding direction of the casing 11, the opening portion is provided so as to face the projection 29 and the recess 37 on the outside, so that the user can visually confirm which recess the projection 29 is engaged with. Further, the throttle member 21 and the nozzle member 3 1 may be rotated by either one of them, or the throttle member 21 may be rotated. [Assembling of Water-Saving Device] The water-saving device 1 according to the above configuration is assembled as follows. First, as shown in Fig. 5, the cylindrical portion 32 of the nozzle member 31 is fitted in the connecting recess 25 of the throttle member 21, and the spacer projection 27 of the throttle member 2 1 is engaged with the nozzle member. The engaging section portion 34 of 31, whereby the throttle member 21 nozzle member 31 is combined. At this time, the projection 29 of the throttle member 2 1 is engaged with any of the recesses 37. Thereafter, the nozzle member 31 combined with the 卽& member 21 is engaged with the flange portion 35 in the mounting portion I in the casing 11, and is mounted in the casing n so as to be supported from the lower side. Then, in the casing 11, the mounting recess 14 on the side of the mounting opening 12 engages the annular spacer 14a. Here, the spacer 14a is provided separately from the throttle member 15-201211356 2 1 , but may be provided integrally with the throttle member 2 1 . Thereafter, the housing 1 1 is screwed to the faucet 2. The gasket 14a is crimped to the faucet 2 to ensure watertightness between the faucet 2 and the casing 11 to prevent water leakage. [Operation of Water-Saving Device] When the water-saving device 1 of the above configuration is supplied with water from the water supply port 3 of the faucet 2, the water passes through the first hole portion 24 of the throttle member 21 and the second hole portion 3 of the nozzle member 3 1 It is supplied to the space portion 28 between the throttle member 21 and the nozzle member 3. The space portion 2 8 is supplied by reducing the amount of water by the first and second hole portions 24, 3 3 . Then, the direction of the water flow is turned by the second hole portion 33, and the water flow from the outlet 33b of the second hole portion 33 collides with each other in the space portion 28, whereby the water pressure is reduced. Then, the decompressed water is discharged from the water outlet hole 36 of the nozzle member 31. • Water amount adjustment The water amount adjustment is performed by rotating the nozzle member 31 with respect to the throttle member 2 1 . Specifically, when the first hole portion 24 of the throttle member 21 and the inlet 33a of the second hole portion 33 are most overlapped, for example, when the inlets 33a of the first hole portion 24 and the second hole portion 33 are completely identical, they become openings. The largest amount of water, the amount of water becomes the largest. Further, as shown in FIGS. 6(A) and 6(B), when the degree of overlap between the first hole portion 24 and the inlet 33a of the second hole portion 33 is small, the flow path becomes small, and the amount of water is made small. cut back. The sixth (c) diagram shows the state in which the inlets 33a of the first hole portion 24 and the second hole portion 33 are the most displaced, and the amount of water is the smallest. When the nozzle member 31 is further rotated 16 - 201211356 with respect to the throttle member 2 1 , the opening amount becomes larger as shown in the sixth (D) diagram, and the opening amount is the same as that of the sixth (B) drawing. The rotation amount is sequentially changed in stages as the rotation energy is sequentially changed. The segmentation switching of the opening amount shown in Fig. 6 is performed by rotating the nozzle member 31, and the projection 29 of the throttle member 21 is engaged with the shallowest concave portion of the nozzle member 31 in the state where the opening amount is the largest. 37a. As the opening amount is gradually reduced, the projections 29 are sequentially engaged with the concave portions 37b, 37c, and as shown in Fig. 6(C), when the opening amount is the smallest, the concave portion 37d is engaged with the deepest portion. In this manner, the set state after the water amount adjustment is held by selectively engaging the projection 29 with any of 37a to 37d. The method of rotating the nozzle member 31 is not particularly limited, and the nozzle member 31 can be rotated with respect to the throttle member 21 in a state in which the water-saving appliance 1 is disassembled, or can be assembled without disassembling. In the state, the nozzle member 31 is rotated from the water discharge side opening portion 13 of the casing 1 1 using a finger or a jig. Further, the nozzle member 31 is provided with an operation protrusion facing the outside of the casing 11, and the nozzle protrusion 31 may be rotated by using the operation protrusion. [Effects of water saving appliances] Based on the above structure. The water-saving appliance 1 can easily adjust the degree of overlap of the inlets 3 3 a of the first hole portion 24 and the second hole portion 3 3 by relatively rotating the nozzle member 31 and the throttle member 2 1 . That is, the throttle adjustment of the amount of water can be performed by rotating the nozzle member 31. In this manner, the water-saving appliance 1 can easily adjust the appropriate amount of water according to the installation location and use of the water-saving appliance 1. Further, since the water discharge amount can be easily adjusted, it is not necessary to prepare a plurality of pressure reducing members for adjusting the amount of water discharged as in the prior art. Further, the projections 29 of the -17-201211356 throttle member 21 are selectively engaged with the recesses 37 of the nozzle member 31, and the throttle adjustment operation can be performed in sections or continuously, and the water volume adjustment operation can be easily performed. Further, in the case where the throttle adjustment is not required to be performed in sections, the projections 2 9 and the recesses 3 7 are not provided. In particular, the outer shape of the cylindrical portion 32 is a polygonal tube shape, and in the case where the connection concave portion 25 of the throttle member 31 is formed in a polygonal column shape, the positional deviation is not easily caused, and the projection 29 and the concave portion 37 are not provided. Also. Further, the interval between the plurality of concave portions 37 may not be the same. [Modification of the water-saving device] Hereinafter, a water-saving device according to a modification of the present invention will be described with reference to the drawings. [Overall structure] As shown in Fig. 7 to Fig. 9, the water-saving appliance 1 〇 1 used in the present invention is provided with a casing 1 1 1 of a water supply port 103 of a faucet 102 installed in tap water, The throttle member 1 2 1 for discharging the water supplied from the water supply port 103 of the faucet 102, the nozzle member 133 for discharging the water, and the nozzle 111 are disposed in the casing 111 to prevent the faucet 102 and the casing A gasket 151 for watertightness that leaks between the bodies 111. [Description of the casing] The casing 111 is formed in a cylindrical shape as shown in Figs. 7 to 10, and one end is attached to the water supply port 103 of the faucet 102 and the like. -18-201211356 1 1 2 One end is the outlet side opening portion 1 1 3 on the water discharge side. A screw groove 112a is formed in the inner peripheral surface of the mounting opening portion 112, and the housing 1 1 1 is attached to the faucet 102 or the like by being locked to the screw portion of the faucet 1〇2. Needless to say, the formation portion of the screw groove 1 1 2 a is not limited to the inner circumferential surface of the attachment opening portion 112, and may be, for example, an outer circumferential surface. Further, the means for attaching the casing 111 to the water supply port 103 is not limited thereto. Thread groove. The throttle member 121, the nozzle member 133, and the spacer 155 are provided in a space portion in the casing 111. A segment portion 1 1 4 is formed in the vicinity of the water discharge side opening portion 1 1 3, and the front end portion on the water discharge side opening portion 1 1 3 side of the gasket 1 5 1 is engaged. The front end portion of the water outlet side opening portion 1 1 3 side of the gasket 151 is engaged with the segment portion 114, and the gasket 151 is attached to the casing 1 1 1 in a positioned state. The water discharge side opening portion 1 1 3 is provided with a spherical surface support portion 1 1 3 a for supporting the assembly 1 54 of the throttle member 1 2 1 and the nozzle member 1 3 1 , and further, is formed to expand toward the distal end side. Water outlet 113b. The spherical support portion U3a is a curved surface having the same curvature as the curved surface of the enlarged diameter portion 153 of the spacer 151, and the assembly 154 is supported in the vicinity of the water discharge surface 131a of the nozzle member 131, thereby preventing the assembly 1 54 from opening from the water outlet side. 1 1 3 falls off. That is, the spherical support portion 1 1 3 a has a smaller diameter portion than the maximum diameter of the assembly 154, and constitutes a spherical seating surface that is convex toward the outside. Further, since the water outlet 1 1 3 b is formed in a shape that expands toward the outer side, even if the water surface is inclined 1 1 1 a, the water discharged from the water surface 1 3 1 a of the nozzle member 13 1 does not come into contact with the water. The peripheral edge of the side opening portion 1 1 3 . -19-201211356 [Description of the throttle member] The throttle member 1 21 has a substantially bowl shape as shown in Figs. 7 to 9 and Fig. 1 and has a protrusion formed on the outer side of the curved surface. Department 122. A water passage hole 133 penetrating in the thickness direction is formed in a central portion of the protruding portion 122. The water passage hole 1 23 has a substantially conical spring base portion 123a which is formed in a convex shape toward the downstream side, and a plurality of first hole portions 124 penetrating from the upstream side to the downstream side are formed in the spring bottom portion 123a. The plurality of first hole portions 1 24 are holes of the same size which are formed at equal intervals, and are four holes which are arranged at equal intervals in the top position of the square. Further, the first hole portion 1 24 is not limited to this example. For example, the number, shape, and size of each hole portion are not particularly limited as long as the water amount of each hole portion is made uniform. The water passing hole 123 is constituted by a plurality of first hole portions 124, and can regulate the flow rate of water supplied from the water supply port 103 of the faucet 102. Further, on the bottom surface on the opposite side of the curved surface on the outer side, a plurality of closing projections 125 are formed around the water passing hole 123, and the like is a closing means for controlling the amount of water discharged from the nozzle member 131. The closing projections 165 are formed in a ring shape at equal intervals around the water passing holes 234. The projection 1 25 is closed to selectively close the water outlet hole 133 of the nozzle member 133 described later. Further, a guide piece 126 which is continuous with the curved surface is formed on the bottom surface. At the front end portion of the guide piece 126, a plurality of guide projections 126a projecting inward are formed. The guide projection 126a is capable of rotating the nozzle member 133 with respect to the throttle member 1 2 1 by being engaged with the guide groove 13 3 of the nozzle member 133 described later. -20-201211356 [Description of Nozzle Member] The nozzle member 131 has a substantially columnar shape as shown in Figs. 7 to 9 and Fig. 12, and the outer peripheral surface is the same as the curved surface of the throttle member 1 2 1 The curvature forms a bend. In the nozzle member 131, a plurality of water discharge holes 1 3 2 penetrating in the thickness direction are formed. The outlet hole 1 3 2 is, for example, a diameter slightly smaller than 1 mm. Further, the bottom surface of the nozzle member 131 serves as a water discharge surface 131a and is formed in a flat shape. Specifically, in the nozzle member 131, the annular outer peripheral water discharge hole array 132a and the inner circumferential water discharge hole array 132b formed by a plurality of water discharge holes 132 are arranged concentrically. The outer peripheral water outlet row 1 32a is a portion that always discharges water, and the inner peripheral water outlet row 1 32b is selectively closed by the closing projection 125 of the throttle member 1 2 1 . Further, the pore diameter of the water outlet hole 132 constituting the inner peripheral water outlet row 1 32b and the water outlet hole 133 constituting the outer peripheral water outlet row 1 3 2 a may be the same, and further, the inner peripheral water outlet row 1 3 2b may be formed. The water outlet hole 133 may be large, and the water outlet hole 133 formed as the inner peripheral water outlet hole row 1 3 2b may be small. In addition, the water surface 1 3 1 a can be formed as a concave portion having the most concave center in the center (a curved surface in which a cycloid curve is drawn) in addition to the flat surface. When the water surface 1 3 1 a is formed by the curved surface on which the cycloid curve is drawn, the water flow discharged from the water outlet hole 1 32 is wide, and the water flow discharged from the water outlet side opening portion 1 1 3 of the casing 1 1 1 can be made. The overall look is thicker. Specifically, in the inner peripheral water outlet row 1 32b, as shown in FIG. 3, the first card for the closing projection 125 is formed at the inlet '' of each of the water outlet holes 132 constituting the inner peripheral water outlet row 132b. The recessed portion 135» is further formed with a second engaging recessed portion 136 in which the closing projections 156 are engaged with each other between the adjacent water outlets 1 and 32. As shown in Fig. 13(A), when the closing projection 125 is engaged with the first engaging recess 135 connected to the water outlet hole 132, the water outlet hole 133 is closed, and becomes the water outlet hole array 13 from the inner circumference. 2b can not be discharged (water saving position). On the other hand, as shown in Fig. 13(B), when the closing projection 125 is engaged with the second engaging recess 136 between the water outlet holes 132, 132, the water outlet hole 133 opens and becomes the water outlet hole row from the inner circumference. 1 3 2b can also be in the state of water (quasi-water saving position). At the upper end portion of the outer periphery of the nozzle member 133, a guide groove 133 into which the guide protrusion 126a of the throttle member 121 is engaged is formed. The nozzle member 131 can be rotated relative to the throttle member 12 1 by engaging the guide projection 126a in the guide groove 133. Further, by rotating the nozzle member 131 with respect to the throttle member 121, it is possible to switch to a state in which the water is not discharged from the inner peripheral water outlet row 1 3 2 b as shown in Fig. 13(A), or the first 3 (B) The state shown in the figure can also be discharged from the inner peripheral water outlet row 132b. Further, in the inner peripheral water outlet row 32b, the number of the first recessed portions 135 disposed between the adjacent water outlet holes 132 may be one or plural. Further, the number and interval of the closing projections 1 2 5 are determined in accordance with the number of switching sections of the amount of water discharged from the inner peripheral water outlet row 1 3 2 b, and are not particularly limited in the present invention. Further, the rows of the water outlet holes which are arranged in a concentric circular shape are not limited to two columns, and may be one column or three columns or more. In the case where the outlet holes are arranged in a row, a plurality of outlet holes are selectively closed by closing projections. Further, in the case where the water outlet rows are arranged in three or more rows, the water outlet holes of the water discharge holes of all or several columns are selectively closed by the closing projections. -22-201211356 A sound-filling hole 134 is formed in a central portion of the nozzle member 131 to mount a water amount adjusting body 141 (a regulating amount of opening of the water-passing hole 123 of the throttle member 121) as a water amount adjusting means. The mounting hole 134 is a through hole penetrating in the thickness direction, and has a cylindrical portion 13 4a, and an enlarged diameter portion 134b is formed on the upper surface side of the nozzle member 131. At the boundary portion between the cylindrical portion 134a and the enlarged diameter portion 134b, a longitudinal concave-convex groove 134c is formed along the winding direction to suppress slippage when the water amount adjusting body 141 rotates. [Explanation of the water amount adjusting body] The water amount adjusting body 141 has a flow path forming portion 142 that forms a flow path and a mounting hole 134 that is inserted into the nozzle member 131 as shown in Figs. 7 to 9 and Fig. 14 . In the fitting portion 143, the flow path forming portion 142 has a shape in which the diameter is increased with respect to the fitting portion 143. The flow path forming portion 142 is formed with a plurality of second hole portions 144 corresponding to the first hole portions 1 24 of the water passing holes 1 23 of the throttle members 1 21, and a plurality of second hole portions 144 corresponding to In the number of the first hole portions 146, the holes of the same size are equally spaced, and here, the four holes are arranged at equal intervals at the top position of the square. Each of the second hole portions 144 is formed by a substantially L-shaped flow path that is open to the side and has an inlet 144a formed on the upper surface and an outlet 144b formed on the side surface. The second hole portion 1 44 is not limited to this example, and the number, shape, and size thereof are not particularly limited as long as the water flow in each hole portion can be stabilized. When the degree of overlap between the first hole portion 14 of the throttle member 1 2 1 and the inlet 144a of the second hole portion 144 of the water amount adjusting body 141 is the highest, for example, the first hole portion 124 and the second hole of the water amount adjusting body 141 When the entrance M4a of the section 144 is the same as the end of the -23-201211356, the amount of water is the largest. Further, as shown in Fig. 15(A) and Fig. 15(B), the degree of overlap between the first hole portion 124 and the inlet 144a of the second hole portion 144 is small, the flow path is narrowed, and the amount of water discharged is small. . Fig. 15(C) shows a state in which the inlet 144a of the first hole portion 1 24 and the second hole portion 144 is the most displaced, and the amount of water discharged is the smallest. When the water amount adjusting body 141 is further rotated with respect to the throttle member 1 2 1 , the opening amount is increased again as shown in the 15th (D) diagram, and the opening amount is the same as that of the 15th (B) drawing. The amount of opening changes in stages as the rotational energy sequentially changes. The flow path forming portion 142 is formed with the upper surface of the inlet 144a, and the central portion is formed to be the lowest 'by thereby positioning the central axis of rotation of the water amount adjusting body 141 so as not to be displaced or vibrated by the spring bottom 123a of the throttle member 121. The generated outward biasing force can always pressurize the water amount adjusting body 141 to watertightly contact the flow path forming portion 1 42 and the contact surface of the enlarged diameter portion 134b of the mounting hole 134 which is provided in the center of the nozzle member 131. The degree of improvement is increased, and the unexpected rotation of the water amount adjusting body 141 is prevented. The number of the first and second hole portions 1 24, 144 is not particularly limited. Further, the first and second hole portions 124, 144 may be formed so as to form a flow path having two or more branches. Preferably, the first and second hole portions 124, 144 are disposed at equal positions in the four directions at the top position of the square. Further, the shape of the first and second hole portions i 24 and 丨 44 is not limited to a circular shape, and may be a quadrangular shape such as a rhombus or the like and other polygonal shapes. That is, the second hole portion 1 44 is not particularly limited as long as the water flow in each hole portion is stabilized. The number, shape, and size thereof are not particularly limited. The flow path forming portion 142 having the above-described configuration is a diameter-enlarged portion 134b fitted to the mounting hole 134 located at the center of the nozzle member 131, and watertightness is obtained at the contact surface of the same -24 - 201211356. The fitting portion 143 which is formed integrally with the flow path forming portion 1 42 is a cylindrical portion 134a fitted to the mounting hole 134 in the center of the nozzle member 131. The length of the fitting portion 143 is a length slightly protruding from the water discharge surface 131a of the attachment hole 134, and the front end surface thereof has an arcuate surface with a good touch. The front end surface may be provided with a groove for rotating the "cross" or "one word" screwdriver of the water amount adjusting body 141. Further, a concavo-convex portion 145 is formed at a boundary portion between the fitting portion 143 and the flow path forming portion 142, and the concavo-convex portion 145 can be engaged with the concave-convex groove 13 4c formed on the inner circumferential surface of the mounting hole 134 of the nozzle member 131. . By engaging the concave and convex portion 145 with the concave-convex groove 134c, it is possible to suppress slippage when the water amount adjusting body 141 rotates. The water amount adjusting body 141 is fitted to the cylindrical portion 134a of the mounting hole 134 of the nozzle member 131, and the flow path forming portion 142 is press-contacted to the enlarged diameter portion 134b, thereby being attached to the nozzle member 131. Mounting holes 134. In this manner, between the upper surface of the flow path forming portion 1 42 and the bottom surface of the nozzle member 133 formed with the first hole portion 124, the closing protrusion 125 is formed to interfere with the first engaging recess portion 135 or the second engaging recess portion 136. Space portion 146. In the space portion 146, the water flows out from the outlet H4b of the second hole portion 144 of the water amount adjusting body 141 collide with each other to reduce the water pressure. When the water amount adjusting body 1 4 i is attached to the mounting hole 134, the tip end portion of the fitting portion 143 protrudes from the water discharge surface 131a of the nozzle member 131. As shown in FIG. 8 and FIG. 9, when the flow rate is to be adjusted, the front end portion of the fitting portion 143 that protrudes from the water discharge surface 131a is pressed and raised, thereby releasing the engagement between the uneven groove 134c and the uneven portion 145. State, in this state -25 - 201211356, the water volume adjustment body 1 4 1 can be rotated. [Description of the spacer] The spacer 151 is, for example, a rubber spacer, and as shown in Figs. 7 to 9 and Fig. 16, the cylindrical portion 152 and the enlarged diameter portion 153 are aligned in the center axis. Form one. The curved surface of the enlarged diameter portion I53 is a spherical seating surface corresponding to the curvature of the outer curved surface of the throttle member 121 and the curvature of the outer peripheral surface of the nozzle member ι31. The front end portion of the enlarged diameter portion 153 is engageable with the segment portion 114 in the vicinity of the water discharge side opening portion 3 of the casing 1 when the casing 1 1 1 is inserted. Further, an engagement portion 156 is formed on the outer peripheral surface of the front end portion of the cylindrical portion 152. In the engaging portion 156, for example, the front end of the faucet 1〇2 is engaged. In this manner, the spacer 151 is such that the end portion of the opening portion 1 1 3 side of the outlet side is engaged with the segment portion 114, and the faucet 102 is engaged and crimped at the engaging portion portion 156, thereby preventing the faucet 1 Water leakage occurs between 〇2 and housing 11.1. As shown in FIGS. 7 to 9 , the water amount adjusting body 14 1 is attached to the nozzle member 131 , and then the assembly B 4 assembled by the throttle members 1 2 and 1 is substantially hemispherical and can be along The spherical seating surface of the enlarged diameter portion 153 slides to change the angle of the water discharge surface 131a of the nozzle member 131. At the corner portion on the outer side of the cylindrical portion 152 and the enlarged diameter portion 153 of the spacer 151, the protruding portion 1 22 of the sliding assembly 1 54, that is, the protruding portion of the throttle member 1 2 1 1 22 is engaged, and becomes a restriction portion 1 5 5 that limits the movable range. [Assembly of water-saving appliances] -26- 201211356 The water-saving appliances 1 0 1 of the above structure are assembled as follows. First, in the mounting hole 134 of the nozzle member 131, as shown in Fig. 15, the first hole portion 1 24 of the throttle member 1 2 1 and the inlet 144 a of the second hole portion 144 of the water amount adjusting body 1 4 1 are adjusted. The water amount adjusting body M1 is installed to the extent of overlap. Next, the nozzle member 133 and the throttle member 1 2 1 are combined into an assembly 154. This assembly 154 is combined with the gasket 151. Specifically, the protrusion 122 of the throttle member 121 is combined with the cylindrical portion 152 of the spacer 151 in the enlarged diameter portion 153 of the spacer 151. Then, the spacer 151 in which the assembly 154 is combined is incorporated. It is disposed in the housing 111. Specifically, the front end portion of the gasket 151 located on the water discharge side opening portion 1 1 3 side is engaged with the segment portion 1 1 4 〇, and then the thread of the housing 111 located on the inner circumferential surface of the mounting opening portion 112 is formed. The groove 112a is locked to the threaded portion of the faucet 102, whereby the housing 111 is attached to the faucet 102 or the like. The engaging portion 156 of the gasket 151 allows the water head 102 to be crimped, thereby preventing water leakage between the faucet 102 and the casing 1 1 1 . [Operation of Water-Saving Device] When the water-saving device 101 having the above structure supplies water from the water supply port 103 of the faucet 102, water passes through the water-passing hole 123 of the throttle member 121 through the first hole portion 14 and the water amount adjusting body 1 The second hole portion 1 44 of the 4 1 is supplied to the space portion 1 46 between the throttle member 1 2 1 and the nozzle member 1 3 1 . In the space portion 1 46, the amount of water discharged is reduced by the throttle member 1 2 1 or the like. Further, -27-201211356, the direction of the water flow is turned by the second hole portion 144, and the water flows flowing out from the outlet 144b of the second hole portion 144 in the space portion 146 collide with each other to depressurize the water pressure. Then, the decompressed water is discharged from the outlet hole 133 of the nozzle member 131, and the water discharge device 101 having the above structure is adjusted. As shown in Figs. 8 and 9, the nozzle member 13 The assembly 1 5 4 combined with the throttle member 1 2 1 has a portion of the lower hemisphere added to the upper hemisphere to have a shape more than the complete hemisphere. That is, the assembly 154 is a hemisphere having a maximum diameter R1 including the spherical body of the assembly 154, and the diameter of the water discharge surface 131a is slightly smaller than the maximum diameter R1. Further, the assembly 154 is formed of a continuous substantially hemispherical outer surface from the outer surface of the throttle structure 126 and the outer surface of the nozzle member 133. The spherical surface of the enlarged diameter portion 153 constituting the spacer 151 and the spherical surface supporting portion 1 1 3 a in the vicinity of the opening portion 1 1 3 of the casing 111 are continuous spherical surfaces corresponding to the substantially hemispherical surface formed by the outer surface of the assembly 154. The sliding spherical seating surface that can accommodate the rotation of the assembly 154 is formed. Further, in the present invention, at least the enlarged diameter portion 153 of the spacer 151 may be a seating surface, and since the assembly 154 is rotatable, the spherical receiving portion 113a of the housing 111 does not have to be a spherical seating surface. The diameter R3 of the portion 1 13a is smaller than the maximum diameter R1 of the assembly 154 to prevent the assembly 154 from coming off the housing 1 1 1 . Therefore, the assembly 1 54, for example, presses the water surface 1 3 1 a with a finger or the like so that the water is as large as the R2 surface water body is the ball branch -28-201211356 pressed, and the throttle member 1 2 The protruding portion 1 2 2 of 1 can be tilted within a range that is in contact with the restricting portion 1 5 5 of the spacer 1 5 1 . Further, in the effluent, the throttle member 121 and the nozzle member 131 can be press-contacted to the spacer 151 by the internal pressure generated in the inner space of the spacer 151. Therefore, the adjusted inclination angle of the water discharge surface 131a does not shift during use. The 17th (A) and 18th (A) diagrams show that the water surface 131a has an inclination angle of zero. And the direction of the water is made straight. Further, the 17th (B)th and 18th (B)th drawings show the state in which the water surface 131a is most inclined in one direction. In this state, the protruding portion 1 22 of the throttle member 1 2 1 constituting the assembly 1 54 comes into contact with the restricting portion 155 of the spacer 151, so that the water discharge surface 131a cannot be further inclined. Further, the 17th (C) and 18th (C) drawings show a state in which the water surface 131a is most inclined in the other direction. Also in this state, the protruding portion 122 of the throttle member 121 constituting the assembly 154 is in contact with the restricting portion 155 of the spacer 151, so that the water discharge surface 131a cannot be further inclined. Further, when the water discharge direction is adjusted, the water amount adjusting body 141 is not necessarily provided. In the case where the water amount adjusting body 141 is not provided, the mounting hole 1 3 4 of the nozzle member 133 may be provided. Further, the assembly 154 may also be a complete hemisphere. • First water quantity adjustment The water-saving appliance 1 〇 1 is such that the nozzle member 133 is rotated relative to the throttle member 121 to adjust the water saving degree. Specifically, in the water-saving appliance 1 〇 1, water is always discharged from the outer water outlet row 1 3 2 a, and the discharged water always looks thick. On the other hand, in the inner peripheral water outlet row 1 3 2b, -29-201211356, the water discharge hole 132 of the nozzle member 131 is selectively closed by the closing projection 125 of the throttle member 121. Specifically, as shown in FIG. 13(A) and FIGS. 17(A) to (C), when the closing projection 125 is engaged with the first engaging recess 135 that is continuous with the water outlet hole 132, the water outlet hole 132 It is closed, and it is a state in which water is not discharged from the inner peripheral water outlet row 1 3 2b (water saving position). On the other hand, as shown in Fig. 13(B) and Figs. 18(A) to (C), when the closing projection 125 is engaged with the second engaging recess 136 between the water outlet holes 132, 132, the water outlet hole 132 is opened. In addition, it is a state in which water can be discharged from the inner peripheral water outlet row 132b (quasi-water saving position). That is, when the nozzle member 131 is located at the quasi-water-saving position, the flow line of the water surface 1 3 1 a is double-layered, and when it is located at the water-saving position, the stream line is only a single layer. At the water-saving device 1 〇 1, always, when the nozzle member 133 is at the water-saving position, water is discharged from the outer-outlet hole array 1 32a, and water is not discharged from the inner peripheral water-outlet row 1 32b. Therefore, in the water-saving appliance 101, since the inner water outlet hole row 1 3 2b cannot be discharged, water can be saved in such a manner that the water content of the ifl appearance is not reduced. The rotation operation method of the nozzle member 133 is not particularly limited, and the nozzle member 133 may be rotated with respect to the throttle member 1 2 1 in a state where the water-saving appliance 1 〇1 is disassembled, or not In the assembled state, the nozzle member 131 is rotated from the water discharge side opening portion 1 1 3 of the casing 1 1 1 using a finger or a jig. Further, the nozzle member 131 is provided with an operation protrusion facing the outside of the casing 1 1 1 , and the nozzle member 1 3 1 may be rotated by using the operation protrusion. Further, a projection is provided on one of the throttle member 121 and the nozzle member 131, and a plurality of recesses -30-201211356 for selectively engaging the projections are provided on the other side, by allowing the throttle member 121 and the nozzle member 131 to be opposed to each other. Rotation, the protrusion is selected to be in the recessed portion, and the relative position of the throttle member 1S1 and the nozzle member 131 is kept constant. Further, the opening portion is provided in the casing lu to see which recess is engaged with the projection, and the setting state can be visually confirmed. Further, when the water adjustment is performed, the water amount adjusting body 141 is not set. In the case where the water amount adjusting body 141 is not provided, the mounting hole 134 of the nozzle member 131 may be provided as described above. • Second water amount adjustment The water saving device 101' can adjust the amount of water by rotating the water amount adjusting body 141. When the degree of overlap between the first hole portion 14 of the throttle member 112 and the inlet 144a of the second hole portion I44 of the water amount adjusting body M1 is the highest, the amount of opening is the largest, and the amount of water is the largest. Further, as shown in Fig. 15(A) and Fig. 15(B), if the degree of overlap between the first hole portion 124 and the inlet 144a of the second hole portion 144 becomes small, the flow path becomes small, and the flow path becomes small. The amount of water is reduced. The 15th (C) diagram is a state in which the inlets 1 44a of the first hole portion 124 and the second hole portion 144 have the largest deviation and the amount of water discharged is the smallest. When the water amount adjusting body 141 is further rotated with respect to the throttle member 121, the opening amount is increased again as shown in Fig. 15(D), and the opening amount is the same as that of the 15th (B) drawing. The amount of opening is sequentially changed in stages or continuously. In the water-saving device 1 〇 1 assembly state, the front end portion of the fitting portion 143 that protrudes from the water discharge surface 131a is pressed and raised, for example, thereby releasing the engagement state between the uneven groove 134c and the uneven portion 145. Or releasing -31 - 201211356 and releasing, in this released state, by rotating the water amount adjusting body 141. [Effect of the water-saving appliance] According to the water-saving appliance 101 of the above configuration, by providing the throttle member 1 21 and the nozzle member 133 in the casing 111, the amount of water can be reduced to save water. Specifically, the water flow after the throttling member is throttled is further discharged from the water outlet holes 13 2a and 132b by the nozzle member 131 adjusting the amount of water and the water potential, so that a good feeling of use can be achieved. water. Further, by the water amount adjusting body 141, the water supply amount of the water hole arrays 132a, 132b can be supplied from the outside through a simple operation adjustment, so that the water pressure and the water discharge amount can be finely adjusted. Further, the assembly member 1 2 1 of the throttle member 1 2 1 and the nozzle member 1 3 1 is slidably attached to the spacer 151, and the angle of the water discharge surface 131a is made variable. Therefore, the water discharge direction can be easily adjusted from the outside through a simple operation. Thus, in the water-saving state, even if the water pressure rises, by adjusting the discharge direction, it is possible to prevent the water droplets from splashing outside the basin and staining the periphery of the basin. In other words, in the water-saving appliance 101, in the range where the water and the water droplets do not splash outside the basin, the water discharge amount and the discharge direction can be easily adjusted for convenience. [Modification of Water-Saving Appliance] Although the above-described water-saving appliances 1,1〇1 used in the present invention have been described above, the water-saving appliance 1,10 is only an example of the present invention, and the water-saving appliance 1 is not -32-201211356 Various modifications can be made without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded cross-sectional view of a water-saving appliance to which the present invention is applied. Fig. 2 is a cross-sectional view showing a water-saving appliance to which the present invention is applied. Fig. 3 is a view showing a non-throttle member, (A) is a plan view, (B) is a side view, (C) is a cross-sectional view, and (D) is a bottom view. Fig. 4 is a view showing a nozzle member, (A) is a plan view, (B) is a side view, (C) is a cross-sectional view, and (D) is a bottom view. Fig. 5 is a side view in which the throttle member and the nozzle member are combined, and the throttle member is shown in cross section. Fig. 6 is a plan view showing the degree of overlap between the first hole portion of the throttle member and the second hole portion of the nozzle member, wherein (A) shows a state of being slightly opened, (B) shows a state of further closing, and (C) shows a state of further closing. In the most closed state, (D) indicates that the opening amount is increased again to become the same state as (B). Fig. 7 is an exploded cross-sectional view showing a water-saving appliance according to a modification of the present invention. Fig. 8 is a cross-sectional view showing the position of the water discharge hole of the outer peripheral water outlet row and the water discharge hole of the inner peripheral water discharge hole row in the water-saving device of the above modification. Fig. 9 is a cross-sectional view showing the position of the water discharge hole in which only the outer peripheral water outlet row is formed in the water-saving appliance of the above modification. Fig. 10 is a view showing a casing, (A) is a plan view, (B) is a cross-sectional view, and (C) is a bottom view. Fig. 1 shows a throttle member, (A) is a plan view, (B) is a cross-sectional view, and (C) is a bottom view. -33- 201211356 Fig. 12 shows the nozzle member, (A) is a plan view, and (B) is a cross-sectional view of the position of the water outlet hole of the outer peripheral water outlet row and the water outlet hole of the inner peripheral water outlet row. (c) is a B - B ' cross-sectional view showing the position of the water outlet hole having only the outer peripheral water outlet row, and (D) is a bottom view. Fig. 13 is a cross-sectional view showing the relationship between the closed projection and the engaging recess along the inner peripheral water outlet row, and (A) showing the state in which the closed projection closes the water outlet hole (B) showing the state in which the water hole is opened. Fig. 14 shows a water amount adjusting body, (a) is a plan view, (B) is a cross-sectional view, and (C) is a side view. Fig. 15 is a plan view showing the degree of overlap between the first hole portion of the throttle member and the second hole portion of the water amount adjusting body, wherein (A) shows a state of being slightly opened, and (B) shows a state of further closing, (C) Indicates the most closed state, and (D) indicates that the opening amount is increased again to become the same open state as (B). Fig. 16 is a view showing a spacer, (A) is a plan view, (B) is a cross-sectional view, and (C) is a bottom view. Fig. 17 is a cross-sectional view showing a state in which water is discharged from the outer peripheral water outlet row by the water-saving device of the present invention, wherein (A) is a state in which water is discharged directly downward, and (B) is a state in which water is discharged toward the left side in the drawing. (C) is a state in which water is discharged toward the right side in the drawing. Fig. 18 is a cross-sectional view showing a state in which water is discharged from the outer and inner water outlet holes by the water-saving device of the present invention, wherein (A) is a state in which water is discharged directly downward, and (B) is a water discharged toward the left side in the drawing. State, (C) is a state in which water is discharged toward the right side in the figure. -34- 201211356 [Explanation of main component symbols] 1,1 〇1: Water saving appliance 2,1 0 2 : Faucet 1 1,1 1 1 : Housing 1 2,1 1 2 : Mounting opening 12a, l 12a : Thread groove 1 3,1 1 3 : water outlet side opening portion 1 4 : mounting recess portion 14a : spacer 1 5 : mounting portion portion 2 1 : throttle member 2 2, 2 3 : flange portion 24 : first hole portion 25 : connection recess 26 : annular recess 27 = spacer projection 2 8 : space portion 29 : projection 3 1,1 3 1 : nozzle member 3 1 a : water outlet surface 3 2 : cylindrical portion 3 3 : second hole portion 33a: inlet 33b: outlet 201211356 3 4 : engagement section 3 5 : flange portion 3 6 : water outlet hole 3 7, 3 7 - 3 7d : recess 113a: spherical support portion 113b: water outlet 1 1 4 : segment 1 2 1 : throttle member 122 : protrusion 1 2 3 : water passage hole 1 2 3 a : spring bottom portion 124 : first hole portion 1 2 5 : closing protrusion 126 : guide piece 126a : guide protrusion 1 3 1 a : Outlet surface 1 3 2 : Outlet hole 1 3 2 a : Peripheral outlet hole row 1 3 2 b : Inner circumference outlet hole row 1 33 : Guide groove 1 3 4 : Mounting hole 1 3 4 a : Cylinder portion 13 4b : enlarged diameter portion 134c : concave-convex groove - 36 201211356 135 : first engagement recess 1 3 6 : second engagement recess 1 4 1 : water amount adjusting body 142 : flow path forming portion 143 : fitting portion 144 : second hole portion 1 44 a : inlet 144 b : outlet 1 4 5 : uneven portion 1 4 6 : space portion 151 : gasket 1 5 2 : cylinder Part 1 5 3 : enlarged diameter portion 154 : assembly 1 5 5 : restricting portion 1 5 6 : engaging portion portion 161 : protrusion 1 6 2 : recessed portion