200918753 九、發明說明： 【發明所屬之技術領域】 本發明涉及小型泵，尤其涉及用於燃料電池系統等上 且使用隔膜的小型泵。 【先前技術】 按照第四圖說明現有的此種小型泵。小型泵21構成為 在筒狀的外殼22内具備形成泵室23、23的兩個隔膜24、 24 ’在該隔膜24、24的下部中心部朝向下方突出設有中空 狀安裝體25、25 ’在該隔膜24、24的下方配設有使該隔 膜24、24的下面上下運動的擺動體26。 此外，上述外殼22分上外殼22a、中外殼22b、下外 殼22c三段構成’上述隔膜24、24通過該隔膜24、24的 凸緣部24a、24a被夾住固定在上述上外殼22a和上述中外 冗又22b之間而保持在上述外殼22上。 而且，具有空氣導入孔27a、27a的軸體27、27朝上 突出设置在該擺動體26的外周邊部附近且位於上述隔膜 24、24的各自的中心部下方，在該軸體27、π的外側面 緊貼嵌合上述中空狀安裝體25、25的内侧面從而上述隔膜 24、24安裝在上述擺動體26上。 另外，上述隔膜24、24的底部中心部的一部分被切 開，從而形成吸氣閥體28、28，並且因該切開而形成貫通 孔29、29，利用該吸氣閥體28、28可封閉、敞開該貫通 孔29、29 ’從而構成吸氣閥部、vi。 再者，在上述擺動體26的中心部貫通並固定有用於使 該擺動體26利用偏心旋轉而擺動的偏心旋轉轴3〇。而且， 200918753 在該擺動體26的上方設有從上述中外殼22b延伸設置的延 伸設置部31 ’並且在該延伸設置部31的下部形成有凹部 32，另一方面’在配置於上述下外殼22c的下部一側的旋 轉驅動軸33上端固定有旋轉體34。另外，在離開了該旋 轉體34上部的中心的位置形成有凹部35，上述偏心旋轉 軸30的下端部留著遊隙嵌入該凹部35，該偏心旋轉轴30 的上端留著間隙嵌入上述延伸設置部31的凹部32。 另外，在上述上外殼22a的中央部穿設有排氣孔（輸 出孔）36’且在該上外殼22a的下面部的該排氣孔36外周 設有與該排氣孔36連通的兩個環狀凹槽37、37，在該環 狀凹槽37、37的内壁面37a、37a上壓接由上述隔膜24、 24的上端部構成的排氣閥體（輸出閥體）38、38而構成排 氣閥部V2、V2。 而且，在上述旋轉驅動軸33的下端部連接馬達39， 益且將該馬達39收放在馬達外殼40内，在該馬達外殼4〇 的上板40a上疊合上述下外殼22c而使兩者連結。再有， 在該下外级22c的底板22d及馬達外殼40的上板4〇a上設 有與該馬達外殼40内連通的連通孔41，並且在該馬達外 殼40的下部形成有用於向馬達外殼40内導入外部空氣的 吸氣孔42、42。 而且，右上述旋轉體34因上述旋轉驅動軸33的旋轉 而旋轉，則上述偏心旋轉軸30偏心旋轉，由此上述擺動， 26上下擺動，並使上述隔膜24、24的下端部上 而且，，一方隔膜24的下端部向下運動時，該隔膜24内 處於負壓，上述排氣閥體38緊貼在上逑環狀凹槽3?的上 述内壁面37a從而排氣閥部V2處於閉合狀態，而"且，上述 7 200918753 吸氣閥體28使上述貫诵讲 Π處於敞開狀態，進行從上述。湖部 24内的如箭頭c所示那樣的吸氣。. a向上述隔版 其次，在上述隔膜24的下 24内處於“，上述吸氣閥體28y =時，上述隔膜 而使上述吸氣閥部V1處於閉合 、<貝通孔29’從 38離開上述内壁面37a從而‘占，亚且上述排氣閥體 起的如箭頭D所示那樣的排翁：由上述排氣閥部V2所引 空氣通過上述環狀凹槽37 /、°，該排朗體糾内排出的 殼22外部排出而得到日泵輪出從上述排氣孔36向上述外 另外，伴隨上述隔膜24 % & 内處於負壓，上述馬達外殼4^運動如j下外殼咖 通過上述連通孔41流入，由的二乳如則碩E所示那樣 壓’且外部空氣如箭頭F所示那樣内處於負 而進行小型粟21的果動作⑷及f入 一 106471號公報）。 哥扪又馱丨.日本特開2002 上述現有的小型泵在西？努^ 部通過支撐偏心旋轉轴的旋體動體的下方的馬達 由於該擺動體的高度位置被^連：有，擺動體。於是， 擺動體的上側的上述泵室的輪出或變更形成： 該泵室的輪出或容量。另外，=里的场合，無法變更 加工精度上存在偏差，則旋轉右體装配部件的 移，從而上述擺動體的高度位置；:二在3，：方向上位 壓縮率變化，而在泵室的輸出 &於泵室的 生產成品率降低。 上產生偏差，從而小型泵的 另外，上述小縣由於將中空狀安裝體壓接並喪合在 8 200918753 該轴體外侧面，因此，為了確保所需嵌合強度，就有必要 較長地形成該中空狀安裝體及軸體，從而使得小型泵整體 的高度與該所加長的部分相應地增大。另外，有因擺動體 的擺動作用使得中空狀安裝體從轴體漸漸脫落之類的缺 陷。 於是，本申請人為了消除上述現有例的缺陷，而提出 了第五圖所示新結構的小型泵（ 2007年3月5日申請的未 公開技術）。此外，在與第四圖所示的現有例共通的部分附 注同一符號而進行說明。圖中，小型泵1具有：作為泵外 殼2的形成頂板的泵上外殼3;在該泵上外殼3的周緣下 面一體地連結的泵下外殼4;以及該泵下外殼4的下方部 所與馬達外殼5的侧壁5a —體地嵌合的該馬達外殼5，在 該小型泵1的外殼K内容納有多個隔膜24、擺動體26以 及馬達6。將上述泵上外殼3和各隔膜24之間的空間作為 泵室23而進行對該泵室23内的空氣的吸入和排出。 另外，在上述隔膜24的泵上外殼3 —側設有骄氣閥體 38，且在該隔膜24的擺動體26 —側設有吸氣閥體28。再 有，在各隔膜24的底部中心部穿設有貫通孔29，並且設 有對該貫通孔29進行開閉的吸氣閥體28而構成吸氣閥部 V卜 另一方面，具有與上述貫通孔29連通的空氣導入孔 27a的軸體27突出設置於上述擺動體26附近，在轴體27 上設有隔膜24的防脫用凹部27b。另一方面，在各隔膜24 的底部背面上突出設有中空狀安裝體25，在該中空狀安裝 體25上設有突起部25a。將該中空狀安裝體25緊貼嵌合 在上述擺動體26的軸體27外侧面上而將上述隔膜24安裝 9 200918753 在該擺動體26上。 另外，偏心旋轉軸30的上端部貫通並固定在上述擺動 體26的中心部，該偏心旋轉轴30的下端部留著遊隙嵌合 在馬達部Μ的帶輪10上面的偏心於馬達轴6b中心的位 置。因此，利用上述馬達6的驅動，通過偏心旋轉轴3 0 可使擺動體26上下擺動，從而隔膜24上下運動，使得上 述泵室23壓縮、膨脹而能夠得到泵輸出。 再者，上述帶輪10直接固定設置在轉子磁鐵6a内側 ( 所設的背扼部6c及馬達轴7上。此外，符號9是馬達6 的定子，符號11是設置在馬達部Μ的電路板。 然而，在第五圖的小型馬達中，由於該擺動體的高度 位置被固定，因此，不能調節上述泵室的輸出及容量。另 外，若在馬達軸、背軛部、轉子磁鐵等的組裝部件的加工 精度等上有偏差，則該帶輪（旋轉體）的高度位置在上下 .方向移動，使得上述擺動體的高度位置也變化。其結果， 泵室的壓縮率變化而在泵輸出上產生偏差，從而小型泵的 生產成品率降低。 【發明内容】 於是，為了形成為可調節泵室的輸出及容量並提高小 型泵的生產成品率，就會出現有待解決的技術課題，本發 明的目的就是解決該課題。 本發明是為了達到上述目的而提出的，第一方案所記 載的發明提供一種小型泵，該小型泵在外殼内具備形成泵 室的多個隔膜，在該隔膜的底部設置貫通孔，將具有與該 貫通孔連通的空氣導入孔的軸體突出設置在擺動體上，在 該轴體上嵌合固定突出設置於上述隔膜的底部背面的中空 10 200918753 狀安裝體而將該隔膜連結在該擺動體上，再有，在上述貫 通孔上設置吸氣閥體，並且在與上述泵室連通的排氣孔中 設置排氣閥體，上述隔膜通過上述擺動體的擺動而上下運 動，從而進行栗動作，該小型泵構成為，在配設於上述擺 動體的下方的馬達部通過支撐偏心旋轉轴的旋轉體連結該 擺動體，固定了該旋轉體的馬達軸上下運動自如地與突出 設置於馬達外殼的底部中心部的軸孔部嵌合，通過高度調 節單元可調節該馬達轴的高度位置。 根據該結構，固定旋轉體的馬達軸的高度位置通過操 作高度調節單元而變化。其結果，由於與該旋轉體構成一 體進行上下運動的擺動體的高度位置變化，所以與其相應 地、泵室的容量變化，從而泵室的壓縮率變更。 第二方案所記載的發明在第一方案的小型泵的基礎 上，其特徵在於，上述高度調節單元是與上述軸孔部連通 而穿設的螺釘孔螺紋結合的調節螺釘。 根據該結構，馬達轴通過調節螺釘的旋轉操作而在上 下方向上移動變位，擺動體的高度位置通過偏心旋轉轴而 變化。由此，按照調節螺釘的旋轉操作量定量地調節泵室 的壓縮率。 第三方案所記載的發明提供墊片介入安裝在上述調節 螺釘的上端和上述馬達轴的下端之間的第二方案中所記載 的小型栗。 根據該結構，在調節螺釘旋轉時，調節螺釘的上端與 墊片下面抵接並旋轉，因此，馬達軸不會與調節螺釘一起 旋轉。 第四方案所記載的發明提供上述墊片由硬質合成樹脂 200918753 案中所記载的小=螺钉的上端部形成為球面狀的第三方 根據该結構，由於士 讲λ 滑的表面，而且上述形成的塾片具有光 而該塾片和調節螺釘的接觸八=形成為球面狀，從 和調節螺釘之間的摩擦力變^的面知變小，因此，墊片 觸的=;:::::=上述調節螺釘或墊片接 四方案中所記载的成為球面狀的第二、第三或第 根據該結構，由於馬達㈣ ，該馬達軸的下端部與調節螺釘或墊二接面狀，使 變小。因此，該馬袪_ 一 接觸的邛分的面積 部分的摩擦力變:。、下端部與調節螺釘或墊片的接觸 本發明具有如下效果。 度調節單元操作:的::可”高度位置通過高 調節變更泵室的輸出。另室的容量’並且可 加工精度或組裝精度上有偏差，達組襄部件的 到規定值，因此，能夠提高小型生^出適宜地調節 在小型泵出庫時或不使用時 ^品率。再有， 動體移動並固定到不能工作。度調節單元將擺 泵的不意的啟動於未然。叼又置’從而可阻止小型 第二方案中所記載的發明，由於 =夠定量地變更擺動體的高度位置==轉 案中所δ己載的發明效果的基礎上 在第- 進行泵室的輪出調節。 文早確地且容易地 200918753 第三方案中所記載的發明，由於在調節螺釘旋轉時馬達 轴不一起旋轉，因此，在第二方案中所記載的發明效果的 基礎上，可更準確地調節泵室的容量及輸出（壓縮率）。 第四方案中所記載的發明，由於可使墊片和調節螺釘 的接觸部分的摩擦力小，因此，在第三方案中所記載的發 明效果的基礎上，能夠極力抑制墊片和調節螺釘的接觸部 分的磨耗。 第五方案中所記載的發明，由於可使馬達軸與調節螺 釘或墊片的接觸部分的摩擦力盡可能地小，因此，在第二、 第三或第四方案中所記載的發明效果的基礎上，能夠在上 述接觸部分發揮特別大的磨耗降低作用，並且能夠以更小 的力旋轉操作調節螺釘。 【實施方式】 本發明為了達到形成為可調節泵室的容量及輸出並提 高小型泵的生產成品率的目的，通過以下結構而達到。本 發明的小型泵在外殼内具備形成泵室的多個隔膜，在該隔 膜的底部設置貫通孔，將具有與該貫通孔連通的空氣導入 孔的轴體突出設置在擺動體上，在該轴體上嵌合固定突出 設置於上述隔膜的底部背面的中空狀安裝體而將該隔膜連 結在該擺動體上，再有，在上述貫通孔上設置吸氣閥體， 並且在與上述泵室連通的排氣孔中設置排氣閥體，上述隔 膜通過上述擺動體的擺動而上下運動，從而進行泵動作， 該小型泵構成為，在配設於上述擺動體的下方的馬達部通 過支撐偏心旋轉轴的旋轉體連結有該擺動體，固定了該旋 轉體的馬達轴上下運動自如地與突出設置於馬達外殼的底 部中心部的軸孔部嵌合，通過高度調節單元可調節該馬達 13 200918753 轴的高度位置。 (實施例） 下面按照第一圖至第三圖詳細敍述本發明的優選一實 施例。在本實施例中，擺動體通過支撐偏心旋轉軸的帶輪 (旋轉體）連結在馬達部，而且該馬達部的馬達轴通過調 節螺釘的旋轉操作在上下方向上移動位移。因此，擺動體 的高度位置隨調節螺釘的旋轉操作量而變化，從而泵室的 容量及壓縮率定量變更。即使起因於例如馬達組裝部件的 加工精度等的偏差使得泵輸出不均勻，也可通過調節螺釘 的旋轉操作將系輸出容易地調節到最佳值。 .此外，本實施例將旋轉體（帶輪）應用到了與馬達一 體設置而成的小型泵上，而本發明也可將旋轉體（帶輪） 應用在與馬達分體設置而成的小型泵（參照第四圖）上。 第一圖是本發明的小型泵的立體圖，第二圖是第一圖 的俯視圖，第三圖是第二圖的A-A線剖視圖。此外，為了 方便說明，在與第五圖所示的小型泵共通的部分附注同一 符號而進行說明。圖中，小型泵1具有：作為泵外殼2的 形成頂板的泵上外殼3 ;在該泵上外殼3的周緣下面一體 地連結的泵下外殼4;以及該泵下外殼4的下方部所與馬 達外殼5的侧壁5a構成一體地嵌合的該馬達外殼5，在該 小型泵1的外殼K内容納有多個隔膜彳亇7今厶）24 及擺動體26以及馬達6。 另外，將上述泵上外殼3和各隔膜24之間的空間作為 泵室23而向該泵室23内進行空氣的吸入和排出。再有， 在隔膜24的泵上外殼3 —側設有排氣閥體38，且在該隔 膜24的擺動體26 —侧設有吸氣閥體28。 14 200918753 擺動體26通過上述馬達6的驅動而上下運動，再有， 通過該擺動體26的上下運動使上述泵室23壓縮、膨脹而 能夠得到泵輸出。即、在擺動體26偏向泵上外殼3 —侧時， 泵室23壓縮，此時，排氣閥體38敞開，從而泵室23内的 所壓縮的空氣（流體）從排氣孔36排出。 相反，在擺動體26偏向馬達6 —側時，泵室23膨脹， 此時，吸氣閥體28敞開，從而空氣通過空氣導入孔27a 吸入泵室23内。通過重複進行這一連_動作，能夠得到一 定的泵輸出，可用於例如燃料電子系統等（省略圖示）。 在第三圖中，在上述隔膜24的底部中心部穿設有貫通 孔29，而且設有對該貫通孔29進行開閉的吸氣閥體28， 從而構成吸氣閥部VI。切開上述隔膜24的一部分而設置 該吸氣閥體28。另一方面，具有與上述貫通孔29連通的 空氣導入孔27a的軸體27突出設置於上述擺動體26附近。 另一方面，在該隔膜24的底部背面突出設有圓筒狀的 中空狀安裝體25，將該中空狀安裝體25緊貼嵌合在上述 擺動體26的軸體27外侧面，而將該隔膜24安裝在擺動體 26上。於是，構成為隔膜24通過該擺動體26的擺動而上 下運動，從而進行小型泵1的泵動作。 另外，在上述擺動體26的下方配設有馬達部Μ，在該 馬達部Μ的上部設有帶輪（旋轉體）10。另外，在設置於 帶輪10上面的偏離馬達轴6b中心的位置的凹部10a中留 著間隙嵌合偏心旋轉轴30的下端部，且該偏心旋轉轴30 的上端部留著間隙嵌合而連結在擺動體26的中心部。因 此，構成為利用帶輪10的旋轉，通過偏心旋轉軸30而施 加上述擺動體26的擺動作用。 15 200918753 上述泵下外殼4的下端部延伸設置到馬達外殼5的底 板5b，並且使該泵下外殼4的下方部嵌合在豎立設置於該 馬達外殼5的底板5b周緣上面的側壁5a外侧面而實現一 體化。 而且，由於泵部P和馬達部Μ設置在外殼K内的同一 空間部Α内，因此，不需要過去所需的長轴的連結部件（旋 轉驅動軸等），也不需要多餘的空間。 在擺動體26的軸體27上設有隔膜24的防脫用凹部 27b。另外，在隔膜24的中空狀安裝體25上設有突起部 25a。這樣，該防脫用凹部27b和突起部25a雙方牢固地嵌 合固定，因此，在隔膜24通過擺動體26的擺動作用而上 下運動時，該隔膜24的中空狀安裝體25不會從上述軸體 27脫落。 此外，第三圖中的符號5c是鐵心，符號6c是背軛部 (八7夕3 —夕部）。另外，符號9是馬達6的定子，符號 Η是電路板。 下面對本發明的特徵部分即泵輸出的調節機構進行說 明。如前所述，在擺動體26的下部通過偏心旋轉轴30連 結有馬達6的帶輪10，在該帶輪10的下面固定有背輛部 6c及馬達軸6b上端。 在上述馬達外殼5的底面中央部向上方突出設有突出 部51，在該突出部51上穿設有轴孔部45。馬達轴6b通過 轴承12上下運動自如地且旋轉自如地嵌合在該軸孔部 45，該馬達軸6b的下端部形成為球面狀。另外，該馬達軸 6b的下端部通過墊片49由調節螺釘47所支撐。 上述墊片49也可以由金屬或硬質橡膠等形成，而在 16 200918753 圖示例中，由表面朵、、典 自潤滑性等優良的尸=σ成樹脂例如耐磨耗性、強韌性、 上述= 冊商標名)等的工程塑料形成。 釘二轴孔部45下端連通而形成的螺 稍小。因此比軸孔部45 4r下=上述馬達軸心= 下^^ m_T47的上端部可形成為球面狀。 定帶輪通:上^ 軸30與帶輪10連結的^則通過偏心旋轉 旲μ…杬動體26的局度位置變化。其結 π / 、的谷1變化’從而該泵室23的壓縮率變更， 因此，可適宜地調節泵室23的輸出。 裏對泵至23的塵縮率和輸出關係進行說明。斬 且動體26的高度位置向上方㈣，而縮短第^ 所不泵至2 3内的空間的上下尺寸s，則與其相應地、泵室 J内的K答量）變得狹小。其結果，由於泵室^内 的壓縮率增大’因此泵室23的内壓上升，從 輸出變大。 1 2此相反，若使擺動體26的高度位置向下方移動，而 使泵室23的上下方向的尺寸s變|，則與其相應地、果室 23内的空間變大。其結果’由於泵室23的壓縮率降低， 因此泵室23的内壓減少，從而泵室23的輸出變小。 在上述小型泵1的製造上，若在例如馬達部Μ的帶輪 10等的組裝部件的加工精度或組裝精度上有偏差，則在泵 室23的壓縮率上產生偏差，隨之在泵室23的輸出上產生 偏差。而在本發明中，由於通過調節螺釘47的旋轉操作就 17 200918753 月包將泵室23的輸出調銘&丨曰从 = 值，因此，可大幅度地減少 2ί:ί 出偏差，從而顯著地提高小型泵1的生 另外，由於墊片49介入安裝在上述調節螺釘47的上 立而。卩和馬達轴6b的下η 螺釘47時間，因此，在旋轉操作了調節 轉。因此，在7白勺上端部與塾片49抵接並旋 尤“ ，°周即累釘47的旋轉過程中，由於馬達軸6b 不會與調節螺釘47 —钯斿喆n , 勹廷釉bb 泵室23的壓縮率产轉，因此，可進-步準確地調節 ^有，不僅通過調節螺釘4 節泵容量，而且在例如不使用小型泵= ==過鬆弛調節螺釘47而使擺動 二 ::作㈣位置’從而可阻止小型栗1的不意二: ㈣ά再A有’在料魏6b灯端部和調㈣釘47的上端 狀的場合’馬達軸6 : 如的表面光滑且自^的㈣變小。其結果，與墊片 片49和調節螺钉47 ^生4良的特點互起作用，使得該墊 因此，上述;妾= 力可旋轉操作調節齡47。7降低’此外’以較小的 氣，22:例令’作她型泵的壓縮介質使用了* 風’而Μ縮介質不限定於 I政用了空 或液體等流體。另外，^乳，也可使用空氣以外的氣體 任意方式中使用。泵可在立式或臥式的 也可以選定凸輪或摔作/及本發明的高度調節單元， 飞知作知專公知的高度調節機構。 200918753 藉_銳 知月任不超出本發明的精神的範圍内可進行 =料n本㈣理所#赫 【圖式簡單說明】 、一又文 本發明的-個實施例，是小型果的立體圖。 弟一圖疋第一圖的俯視圖。 第三圖是第二圖的A-A線剖視圖。 弟四圖是現有的小H的縱剖視圖。 是2人先前申請的未公開的小型泵的縱剖視圖。 I主要兀件符號說明】 [本發明及未公開的小型系實施例] 丄―小型泵 2—泵外殼 3— 泵上外殼 4— 泵下外殼 5— 馬達外殼 5a—側壁 5b—底板 5c一鐵心 6—馬達 6a—轉子磁鐵（馬達部的旋轉體） 6b—馬達軸 背軛部 8〜吸氣孔 9—定子 19 200918753 ίο—帶輪（馬達部的旋轉體） 10a—凹部 11 一電路板 12 —轴承 23—泵室 24 一隔膜 25 —中空狀安裝體 25a —突起部 C 26 —擺動體（擺動活塞） 27—軸體 27a—空氣導入孔 27b—防脫用凹部 28 一吸氣閥體 29 一貫通孔 30—偏心旋轉轴30 36 —排氣孔（輸出孔、輸出系統） 38一排氣閥體（輸出閥體） 45 一轴孔部 47—調節螺釘（高度調節單元） 48 一螺釘孔 49 一墊片 51 —突出部 A—空間部 K一外殼 20 200918753 Μ一馬達部（驅動糸統） Ρ—泵部 S—上下尺寸 VI—吸氣閥部 V2—排氣閥部 [現有小型泵] 21 —小型泵 22—外殼 22a—上外殼 22b—中外殼 22c—下外殼 22d一底板 23 一果室 24—隔膜 24a—凸緣部 25 —安裝體 26— 擺動體 27— 轴體 27a—空氣導入孔 28 一吸氣閥體 29 —貫通孔 30— 偏心旋轉轴 31— 延伸設置部 200918753 32— 凹部 33— 旋轉驅動轴 34— 旋轉體 35— 凹部 36一排氣孔（輸出孔） 37— 環狀凹槽 38— 排氣閥體（輸出閥體） 39 一馬達 40—馬達外殼 40a 一上板 41 一連通孔 42一吸氣孔 VI—吸氣閥部 V2—排氣閥部BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized pump, and more particularly to a small-sized pump for use in a fuel cell system or the like and using a diaphragm. [Prior Art] A conventional small-sized pump of this type will be described in accordance with the fourth embodiment. The small pump 21 is configured to include two diaphragms 24 and 24' forming the pump chambers 23 and 23 in the cylindrical outer casing 22. The hollow mounting bodies 25 and 25 are protruded downward at the lower central portion of the diaphragms 24 and 24. Below the diaphragms 24, 24, a rocking body 26 that moves the lower surfaces of the diaphragms 24, 24 up and down is disposed. Further, the outer casing 22 is divided into a casing 22a, a middle casing 22b, and a lower casing 22c. The diaphragms 24, 24 are clamped and fixed to the upper casing 22a and the above by the flange portions 24a, 24a of the diaphragms 24, 24. The outer and outer portions are 22b and remain on the outer casing 22. Further, the shaft bodies 27 and 27 having the air introduction holes 27a and 27a project upward in the vicinity of the outer peripheral portion of the rocking body 26 and are located below the respective center portions of the diaphragms 24 and 24, in the shaft body 27, π. The outer side surfaces of the hollow mounting bodies 25 and 25 are fitted to the inner side surface of the hollow mounting bodies 25 and 25 so that the diaphragms 24 and 24 are attached to the rocking body 26. Further, a part of the bottom center portion of the diaphragms 24 and 24 is cut away to form the intake valve bodies 28 and 28, and the through holes 29 and 29 are formed by the slitting, and the intake valve bodies 28 and 28 can be closed. The through holes 29, 29' are opened to constitute an intake valve portion, vi. Further, an eccentric rotating shaft 3A for swinging the swinging body 26 by eccentric rotation is penetrated and fixed to the center portion of the swinging body 26. Further, in 200918753, an extending portion 31' extending from the middle casing 22b is provided above the rocking body 26, and a recess 32 is formed in a lower portion of the extending portion 31, and is disposed on the lower casing 22c. A rotating body 34 is fixed to the upper end of the rotary drive shaft 33 on the lower side. Further, a recessed portion 35 is formed at a position away from the center of the upper portion of the rotating body 34, and a lower end portion of the eccentric rotating shaft 30 is fitted into the recessed portion 35 with a play, and an upper end of the eccentric rotating shaft 30 is fitted with the gap to be embedded in the extending portion. The recess 32 of the portion 31. Further, a vent hole (output hole) 36' is bored in a central portion of the upper casing 22a, and two ventilating holes 36 are provided on an outer circumference of the vent hole 36 at a lower portion of the upper casing 22a. The annular grooves 37 and 37 press the exhaust valve bodies (output valve bodies) 38 and 38 formed by the upper end portions of the diaphragms 24 and 24 on the inner wall surfaces 37a and 37a of the annular grooves 37 and 37. The exhaust valve portions V2 and V2 are formed. Further, a motor 39 is connected to the lower end portion of the rotary drive shaft 33, and the motor 39 is housed in the motor casing 40, and the lower casing 22c is superposed on the upper plate 40a of the motor casing 4A so that both link. Further, a communication hole 41 communicating with the inside of the motor casing 40 is provided in the bottom plate 22d of the lower outer stage 22c and the upper plate 4A of the motor casing 40, and a motor for the motor is formed at a lower portion of the motor casing 40. Air intake holes 42, 42 for introducing outside air into the outer casing 40. When the right rotating body 34 is rotated by the rotation of the rotation drive shaft 33, the eccentric rotating shaft 30 is eccentrically rotated, whereby the swing 26 is swung up and down, and the lower ends of the diaphragms 24 and 24 are further closed. When the lower end portion of one of the diaphragms 24 moves downward, the diaphragm 24 is under a negative pressure, and the exhaust valve body 38 abuts against the inner wall surface 37a of the upper annular groove 3, so that the exhaust valve portion V2 is closed. And, the above-mentioned 7 200918753 intake valve body 28 causes the above-mentioned 诵 诵 Π to be in an open state, and proceeds from the above. The inhalation in the lake portion 24 as indicated by the arrow c. a is directed to the above-described separator, and in the lower portion 24 of the diaphragm 24, "when the intake valve body 28y =, the diaphragm causes the intake valve portion V1 to be closed, <Beton through hole 29' from 38 Leaving the inner wall surface 37a to occupies the exhaust gas valve body as shown by the arrow D: the air introduced by the exhaust valve portion V2 passes through the annular groove 37 /, °, The outer casing of the casing 22 is discharged from the outside of the casing, and the daily pumping wheel is taken out from the exhaust hole 36 to the outside, and the motor casing 4 is moved under the outer casing with the negative pressure in the diaphragm 24% & The coffee flows in through the above-mentioned communication hole 41, and the second milk is pressed as shown in the case of E, and the outside air is negative as indicated by the arrow F, and the fruit operation of the small millet 21 is performed (4) and f. The other small-sized pump of the above-mentioned conventional small-sized pump passes through the motor below the rotary body that supports the eccentric rotating shaft, and the height position of the swinging body is connected: Thus, the rotation or change of the pump chamber on the upper side of the oscillating body Form: the rotation or capacity of the pump chamber. In addition, if there is a variation in the machining accuracy, the movement of the right body assembly member can be rotated, and the height position of the swing body can be changed: 2 in the 3: direction The upper compression ratio changes, and the output of the pump chamber & the production yield of the pump chamber is reduced. The deviation occurs, so that the small pump is additionally crimped and smashed in the small county by 8 200918753 The outer side of the shaft, therefore, in order to secure the required fitting strength, it is necessary to form the hollow mounting body and the shaft body longer, so that the height of the entire small pump is increased correspondingly to the lengthened portion. There is a defect that the hollow-shaped mounting body gradually falls off from the shaft body due to the swinging action of the swinging body. Therefore, in order to eliminate the drawbacks of the above-mentioned conventional examples, the applicant has proposed a small-sized pump of the new structure shown in FIG. In addition, the same reference numerals are given to the same portions as the conventional examples shown in the fourth embodiment. In the figure, the small pump 1 has: It is a pump upper casing 3 forming a top plate of the pump casing 2; a pump lower casing 4 integrally connected under the periphery of the upper casing 3 of the pump; and a lower portion of the lower casing 4 is provided with a side wall 5a of the motor casing 5 The motor casing 5 that is integrally fitted is provided with a plurality of diaphragms 24, a rocking body 26, and a motor 6 in the outer casing K of the small pump 1. The space between the upper pump casing 3 and the diaphragms 24 is used as a pump chamber. 23, the suction and discharge of the air in the pump chamber 23 are performed. Further, an argon valve body 38 is provided on the pump upper casing 3 side of the diaphragm 24, and is provided on the side of the oscillating body 26 of the diaphragm 24. The intake valve body 28. Further, a through hole 29 is bored in a central portion of the bottom of each diaphragm 24, and an intake valve body 28 that opens and closes the through hole 29 is provided to constitute an intake valve portion V. On the other hand, the shaft body 27 having the air introduction hole 27a that communicates with the through hole 29 is provided in the vicinity of the rocking body 26, and the shaft body 27 is provided with a recessed portion 27b for preventing the separation of the diaphragm 24. On the other hand, a hollow-shaped mounting body 25 is protruded from the bottom surface of each diaphragm 24, and a projection 25a is provided in the hollow-shaped mounting body 25. The hollow mounting body 25 is fitted to the outer surface of the shaft body 27 of the rocking body 26, and the diaphragm 24 is attached to the rocking body 26. Further, the upper end portion of the eccentric rotating shaft 30 penetrates and is fixed to the center portion of the rocking body 26, and the lower end portion of the eccentric rotating shaft 30 is fitted with an eccentricity on the upper surface of the pulley 10 of the motor portion 偏 to the motor shaft 6b. The location of the center. Therefore, by the driving of the motor 6, the swinging body 26 can be swung up and down by the eccentric rotating shaft 30, and the diaphragm 24 can move up and down, so that the pump chamber 23 can be compressed and expanded to obtain a pump output. Further, the pulley 10 is directly fixed to the inside of the rotor magnet 6a (the back portion 6c and the motor shaft 7 provided. Further, reference numeral 9 is a stator of the motor 6, and reference numeral 11 is a circuit board provided on the motor portion Μ However, in the small motor of Fig. 5, since the height position of the oscillating body is fixed, the output and capacity of the pump chamber cannot be adjusted. In addition, assembly of the motor shaft, the back yoke, the rotor magnet, and the like. When the machining accuracy of the component is different, the height position of the pulley (rotating body) moves in the up and down direction, and the height position of the rocking body also changes. As a result, the compression ratio of the pump chamber changes and the pump output changes. A deviation occurs, so that the production yield of the small pump is lowered. SUMMARY OF THE INVENTION Accordingly, in order to form an output and capacity of the pump chamber that can be adjusted and to improve the production yield of the small pump, there is a technical problem to be solved, and the present invention The present invention has been made to solve the above problems. The present invention has been made to achieve the above object, and the invention according to the first aspect provides a small pump in which a small pump is housed. a plurality of diaphragms forming a pump chamber are provided, a through hole is formed in a bottom portion of the diaphragm, and a shaft body having an air introduction hole communicating with the through hole is protruded from the rocking body, and the shaft body is fitted and fixed on the shaft body. a hollow 10 200918753-shaped mounting body on the bottom surface of the diaphragm is coupled to the rocking body, and an intake valve body is provided in the through hole, and is disposed in a vent hole communicating with the pump chamber. In the exhaust valve body, the diaphragm moves up and down by the swinging of the swinging body to perform the pumping operation, and the small pump is configured such that the motor portion disposed below the swinging body is coupled to the rotating body that supports the eccentric rotating shaft. In the swinging body, the motor shaft to which the rotating body is fixed is vertically movable and fitted to the shaft hole portion which is provided to protrude from the bottom center portion of the motor casing, and the height position of the motor shaft can be adjusted by the height adjusting unit. The height position of the motor shaft of the rotating body is changed by operating the height adjusting unit. As a result, it is integrated with the rotating body. The height of the moving body of the moving body is changed, and accordingly, the capacity of the pump chamber is changed, and the compression ratio of the pump chamber is changed. The invention according to the first aspect of the invention is characterized in that, The height adjusting unit is an adjusting screw that is screwed into a screw hole that communicates with the shaft hole portion. According to this configuration, the motor shaft is displaced in the up and down direction by the rotating operation of the adjusting screw, and the height position of the rocking body passes. The eccentric rotation axis changes. Thereby, the compression ratio of the pump chamber is quantitatively adjusted in accordance with the rotational operation amount of the adjustment screw. The invention described in the third aspect provides that the spacer is interposed between the upper end of the adjustment screw and the lower end of the motor shaft. According to this configuration, when the adjustment screw is rotated, the upper end of the adjustment screw abuts against the underside of the spacer and rotates, so that the motor shaft does not rotate together with the adjustment screw. According to the invention of the fourth aspect, the gasket is formed of a third surface in which the upper end portion of the small = screw described in the case of the hard synthetic resin 200918753 is formed into a spherical shape, and the surface is formed by the sliding surface due to the structure. The cymbal has light and the contact of the cymbal and the adjusting screw is formed into a spherical shape, which becomes smaller from the frictional force between the adjusting screw and the adjusting screw, and therefore, the gasket touches the ==:::: := The above-mentioned adjusting screw or gasket is connected to the second, third or the second surface which is spherical in shape, and the lower end of the motor shaft is connected to the adjusting screw or the pad by the motor (4). Make it smaller. Therefore, the friction of the area of the horse's 袪 一 一 接触 接触 接触 接触 接触 接触 接触 接触Contact of the lower end portion with the adjusting screw or the spacer The present invention has the following effects. Degree adjustment unit operation: : "The height position can be changed by the high adjustment to change the output of the pump chamber. The capacity of the other chamber" and the machining accuracy or assembly accuracy is deviated, reaching the specified value of the group components, and therefore, can be improved The small-sized production is suitable to adjust the rate when the small pump is out of the warehouse or when it is not in use. Further, the moving body is moved and fixed to be inoperable. The degree adjusting unit starts the unintentional start of the pendulum pump. It is possible to prevent the invention described in the small second aspect, and to adjust the height position of the rocking body quantitatively == the effect of the invention of the δ load in the transfer case, and the adjustment of the pumping chamber is performed in the first. According to the invention described in the third aspect of the invention, the motor shaft does not rotate together when the adjusting screw rotates, so that the pump can be more accurately adjusted based on the effects of the invention described in the second aspect. Capacity and output (compression ratio) of the chamber. According to the invention of the fourth aspect, since the frictional force of the contact portion between the spacer and the adjusting screw can be made small, the third aspect is described. Further, in addition to the effects of the invention, it is possible to suppress the wear of the contact portion between the spacer and the adjusting screw as much as possible. In the invention described in the fifth aspect, the frictional force of the contact portion between the motor shaft and the adjusting screw or the spacer can be made as small as possible. Therefore, in addition to the effects of the invention described in the second, third or fourth aspects, it is possible to exert a particularly large wear reducing action on the contact portion, and to rotate the adjustment screw with a smaller force. MODE FOR CARRYING OUT THE INVENTION The present invention is achieved by the following structure in order to achieve the purpose of adjusting the capacity and output of the pump chamber and improving the production yield of the small pump. The small pump of the present invention has a plurality of diaphragms forming a pump chamber in the outer casing. A through hole is formed in a bottom portion of the diaphragm, and a shaft body having an air introduction hole communicating with the through hole is protruded from the rocking body, and the shaft body is fitted and fixed in a hollow shape protruding from a bottom surface of the diaphragm. Connecting the diaphragm to the swinging body, and further providing an intake valve body on the through hole, and in the pump An exhaust valve body is provided in the communication vent hole, and the diaphragm moves up and down by the swinging of the oscillating body to perform a pump operation. The small pump is configured to support the eccentricity by a motor portion disposed below the oscillating body. The oscillating body is coupled to the rotator of the rotating shaft, and the motor shaft to which the rotating body is fixed is vertically movably fitted to the shaft hole portion protruding from the center portion of the bottom portion of the motor casing, and the motor 13 can be adjusted by the height adjusting unit. The height position of the shaft. (Embodiment) A preferred embodiment of the present invention will be described in detail below with reference to the first to third figures. In the present embodiment, the swinging body is coupled to the pulley (rotating body) supporting the eccentric rotating shaft. The motor portion and the motor shaft of the motor portion are displaced in the vertical direction by the rotation operation of the adjusting screw. Therefore, the height position of the swinging body varies depending on the amount of rotation operation of the adjusting screw, and the capacity and compression ratio of the pump chamber are quantitatively changed. . Even if the pump output is uneven due to variations in the machining accuracy or the like of, for example, the motor assembly member, the system output can be easily adjusted to an optimum value by the rotation operation of the adjustment screw. Further, in the present embodiment, the rotating body (pulley) is applied to a small pump integrally provided with the motor, and the present invention can also apply the rotating body (pulley) to a small pump which is provided separately from the motor. (Refer to the fourth figure). The first drawing is a perspective view of a small pump of the present invention, the second drawing is a plan view of the first drawing, and the third drawing is a cross-sectional view taken along line A-A of the second drawing. In addition, for convenience of explanation, the same portions as those of the small pump shown in Fig. 5 will be described with the same reference numerals. In the drawing, the small pump 1 has a pump upper casing 3 as a top plate of the pump casing 2, a pump lower casing 4 integrally coupled to the lower periphery of the casing 3, and a lower portion of the lower casing 4. The motor casing 5 is integrally formed with the side wall 5a of the motor casing 5. The casing K of the small pump 1 houses a plurality of diaphragms 24, a rocking body 26, and a motor 6. Further, a space between the pump upper casing 3 and each of the diaphragms 24 is used as the pump chamber 23, and air is sucked into and discharged into the pump chamber 23. Further, an exhaust valve body 38 is provided on the pump upper casing 3 side of the diaphragm 24, and an intake valve body 28 is provided on the side of the rocking body 26 of the diaphragm 24. 14 200918753 The rocking body 26 is moved up and down by the driving of the motor 6, and the pump chamber 23 is compressed and expanded by the vertical movement of the rocking body 26 to obtain a pump output. That is, when the swinging body 26 is biased toward the pump upper casing 3 side, the pump chamber 23 is compressed, and at this time, the exhaust valve body 38 is opened, so that the compressed air (fluid) in the pump chamber 23 is discharged from the exhaust hole 36. On the contrary, when the swinging body 26 is biased toward the side of the motor 6, the pump chamber 23 is expanded, and at this time, the intake valve body 28 is opened, so that the air is sucked into the pump chamber 23 through the air introduction hole 27a. By repeating this operation, a certain pump output can be obtained, and it can be used for, for example, a fuel electronic system (not shown). In the third figure, the through hole 29 is bored in the bottom center portion of the diaphragm 24, and the intake valve body 28 that opens and closes the through hole 29 is provided to constitute the intake valve portion VI. The intake valve body 28 is provided by cutting a part of the diaphragm 24 described above. On the other hand, the shaft body 27 having the air introduction hole 27a communicating with the through hole 29 is provided in the vicinity of the rocking body 26. On the other hand, a cylindrical hollow-shaped mounting body 25 is protruded from the bottom surface of the diaphragm 24, and the hollow-shaped mounting body 25 is closely fitted to the outer surface of the shaft body 27 of the rocking body 26, and The diaphragm 24 is mounted on the rocking body 26. Then, the diaphragm 24 is moved up and down by the swing of the swinging body 26, and the pump operation of the small pump 1 is performed. Further, a motor portion 配 is disposed below the oscillating body 26, and a pulley (rotating body) 10 is provided at an upper portion of the motor portion Μ. Further, a lower end portion of the eccentric rotating shaft 30 is fitted to the recessed portion 10a provided at a position offset from the center of the motor shaft 6b on the upper surface of the pulley 10, and the upper end portion of the eccentric rotating shaft 30 is fitted with a gap therebetween. At the center of the rocking body 26. Therefore, the swinging action of the swinging body 26 is applied by the eccentric rotating shaft 30 by the rotation of the pulley 10. 15 200918753 The lower end portion of the lower pump casing 4 is extended to the bottom plate 5b of the motor casing 5, and the lower portion of the lower pump casing 4 is fitted to the outer side of the side wall 5a which is erected on the periphery of the bottom plate 5b of the motor casing 5 And achieve integration. Further, since the pump portion P and the motor portion Μ are provided in the same space portion of the casing K, the long-axis connecting member (rotation drive shaft or the like) required in the past is not required, and unnecessary space is not required. The retaining recess 27b of the diaphragm 24 is provided on the shaft body 27 of the rocking body 26. Further, a projection 25a is provided on the hollow mounting body 25 of the diaphragm 24. Since both the retaining recessed portion 27b and the protruding portion 25a are firmly fitted and fixed in this manner, when the diaphragm 24 is moved up and down by the swinging action of the swinging body 26, the hollow mounting body 25 of the diaphragm 24 does not move from the shaft. Body 27 falls off. Further, the symbol 5c in the third figure is a core, and the symbol 6c is a back yoke (eight-seventh-night). Further, reference numeral 9 is a stator of the motor 6, and symbol Η is a circuit board. Next, the characteristic portion of the present invention, that is, the adjustment mechanism of the pump output will be described. As described above, the pulley 10 of the motor 6 is coupled to the lower portion of the rocking body 26 via the eccentric rotating shaft 30, and the upper end portion of the back portion 6c and the motor shaft 6b is fixed to the lower surface of the pulley 10. A protruding portion 51 is protruded upward from a central portion of the bottom surface of the motor casing 5, and a shaft hole portion 45 is bored in the protruding portion 51. The motor shaft 6b is rotatably and rotatably fitted to the shaft hole portion 45 by the bearing 12, and the lower end portion of the motor shaft 6b is formed in a spherical shape. Further, the lower end portion of the motor shaft 6b is supported by the adjusting screw 47 via the spacer 49. The spacer 49 may be formed of metal or hard rubber or the like, and in the example of the figure of 2009 2009 753, an excellent corpse = σ resin such as surface roughness, natural lubricity, etc., such as abrasion resistance, toughness, and the like = Engineering plastics such as the brand name). The screw formed by the lower end of the nail two-axis hole portion 45 is slightly smaller. Therefore, the upper end portion of the motor shaft core = lower ^^m_T47 can be formed in a spherical shape than the shaft hole portion 45 4r. The fixed wheel pass: the upper shaft 30 is coupled to the pulley 10 by the eccentric rotation 旲μ... The position of the swaying body 26 changes. Since the valley 1 of the π / is changed, the compression ratio of the pump chamber 23 is changed, so that the output of the pump chamber 23 can be appropriately adjusted. The dust reduction rate and output relationship of the pump to 23 are explained.斩 And the height position of the moving body 26 is upward (four), and the upper and lower dimensions s of the space which is not pumped to 2 3 are shortened, and accordingly, the K answer amount in the pump chamber J becomes narrow. As a result, since the compression ratio in the pump chamber is increased, the internal pressure of the pump chamber 23 rises and the output increases. In contrast, when the height position of the swinging body 26 is moved downward and the dimension s of the pump chamber 23 in the vertical direction is changed to |, the space in the fruit chamber 23 becomes larger. As a result, since the compression ratio of the pump chamber 23 is lowered, the internal pressure of the pump chamber 23 is reduced, and the output of the pump chamber 23 is reduced. In the manufacture of the small-sized pump 1, if the machining accuracy or the assembly accuracy of the assembly member such as the pulley 10 of the motor unit is varied, a variation occurs in the compression ratio of the pump chamber 23, which is followed by the pump chamber. A deviation occurs in the output of 23. In the present invention, since the output of the pump chamber 23 is adjusted by the rotation of the adjusting screw 47, the output of the pump chamber 23 is adjusted from the value of the value of the pump chamber 23, so that the deviation can be greatly reduced, thereby significantly Further, the life of the small pump 1 is increased, and the spacer 49 is inserted into the upper side of the adjusting screw 47.卩 and the lower η screw 47 of the motor shaft 6b, therefore, the adjustment is rotated during the rotation operation. Therefore, the upper end portion of the 7-shek is abutted against the cymbal 49 and is rotated. During the rotation of the negative nail 47, since the motor shaft 6b does not overlap with the adjusting screw 47, the glaze bb The compression ratio of the pump chamber 23 is reversed, so that it can be adjusted step by step, not only by adjusting the screw's 4 pump capacity, but also by, for example, not using the small pump === overrelaxing adjustment screw 47 to make the swing two: : (4) position 'to prevent the small chestnut 1 from unintentional 2: (4) ά A A has 'in the case of the end of the Wei 6b lamp and the upper end of the tune (4) nail 47 'Motor shaft 6 : such as the surface is smooth and self- (4) It becomes smaller. As a result, it interacts with the characteristics of the spacer piece 49 and the adjusting screw 47, so that the pad is thus, the above; 妾 = force rotatable operation adjusts the age of 47. 7 reduces 'further' to Small gas, 22: The order of 'the compression medium used as her pump uses * wind' and the deflation medium is not limited to I use a fluid such as air or liquid. In addition, it can also use a gas other than air. Used in any mode. The pump can be either vertical or horizontal, or can be selected for cam or fall/and height adjustment of the present invention. Unit, the height-adjusting mechanism known to the public. 200918753 l. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ An embodiment of the invention is a perspective view of a small fruit. A top view of the first figure is shown in the first figure. The third figure is a cross-sectional view taken along line AA of the second figure. The fourth figure is a longitudinal sectional view of the existing small H. Longitudinal sectional view of a previously unpublished small pump. I. Main component symbol description] [The present invention and a non-disclosed small system embodiment] 丄 - small pump 2 - pump housing 3 - pump upper housing 4 - pump lower housing 5 - Motor housing 5a - Side wall 5b - Base plate 5c - Core 6 - Motor 6a - Rotor magnet (rotating body of motor part) 6b - Motor shaft back yoke 8 - Suction hole 9 - Stator 19 200918753 ίο - Pulley (motor part Rotating body 10a - recess 11 a circuit board 12 - bearing 23 - pump chamber 24 - diaphragm 25 - hollow mounting body 25a - projection C 26 - rocking body (swinging piston) 27 - shaft body 27a - air introducing hole 27b - anti-detachment recess 28 Valve body 29 A through hole 30 - eccentric rotating shaft 30 36 - vent hole (output hole, output system) 38 - exhaust valve body (output valve body) 45 one shaft hole portion 47 - adjusting screw (height adjusting unit) 48 A screw hole 49 - a gasket 51 - a projection A - a space portion K - a casing 20 200918753 Μ a motor portion (drive system) Ρ - pump portion S - upper and lower dimensions VI - suction valve portion V2 - exhaust valve portion [ Existing small pump] 21 - small pump 22 - outer casing 22a - upper casing 22b - middle casing 22c - lower casing 22d - bottom plate 23 - fruit chamber 24 - diaphragm 24a - flange portion 25 - mounting body 26 - rocking body 27 - shaft body 27a - air introduction hole 28 - suction valve body 29 - through hole 30 - eccentric rotation shaft 31 - extension portion 200918753 32 - recess 33 - rotary drive shaft 34 - rotary body 35 - recess 36 - vent hole (output hole) 37— Annular groove 38—Exhaust valve body (output valve body) 39 A motor 40—motor housing 40a, upper plate 41, a communication hole 42, an air intake hole VI—intake valve unit V2—exhaust valve unit
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