495597 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（1 ) 發明領域 本發明有關球體止回閥，用於管路處理流體，如服務 用水，介質用水，污水，農業用水，工廠污水，各種污水 ’油氣等；並有關使用球體止回閥之泵裝置，用於抽送污 水槽，人孔抽送站及貯槽中之液體及油。 此類球體止回閥包含一球，以橡皮或樹脂覆層緊密包 住一金屬球而成，並內建於一本體中，一入口及一出口嵌 入本體，一球體落止部及一導引部可導引本體內設置之球 ’當流體正常流動時，令球體退回一位置，不致礙及流體 流動，當流體停止時，以自身重量移至關閉位置。 此類球體止回閥僅適用於垂直管路，即其次側向上轉 ’管路爲水平狀態時不能使用。位於鑄造金屬本體內之導 引部不須經常爲固定尺寸及位置，常常位置可提供球體相 對其直徑之自由空間。當止回閥水平設定而未放出負荷時 ，因水平狀態可能防止球體接觸落止部，而不能有效使用 0 發明人之一就此提至有關球體止回閥之發明， JP - A - 10 - 231，941。 前一專利專注防止球體經出口或入口流入管路，令本 體入口及出口於直徑方向之最小尺寸小於金屬球直徑。雖 然前一發明主要用於垂直管路，其另揭示結構，欲運用於 水平及垂直管路，在落止部提供一突出部，當流體停止正 常流動時令球體撞擊落止部，球體接著移至關閉閥之位置 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4- --------------訂--------- (請先閱讀背面之注意事項再填寫本頁) 495597 A7 B7 五、發明說明（2 ) (請先閱讀背面之注意事項再填寫本頁) 根據前一發明，水平管路之落止部與流徑中線垂直， 無負荷時球不易定位於落止部上。尤其發生大逆流時，雖 然球體確實落止，可能引起水錘，反之，落逆流太小，球 體不會有效落止，致流徑關閉不良。 球體止回閥有各式用途。若用於人孔之泵系統，浸入 式泵位於其上部，具二（或一）抽送功能，可運轉抽上人 孔中所存流體，並控制所存流體爲定量。泵停止後，止回 閥設定於關閉狀態，防止流體回流。 一般，連接止回閥及泵之管路具有通氣閥在止回閥旁 ，允許空氣固定流經管路。 尤係泵停止時，次側管路上水壓差啓動止回閥並予以 關閉。如此，因主側與次側間缺乏壓力差，止回閥不能作 用。尤其，泵系統要求主側壓力適當下，並使用泵抽出主 側之水，首要須經由通氣閥抽出陷入主側管路之空氣。 當泵開始抽送水，因管路有空氣致泵容量劣化，必須 經通氣閥立即抽出空氣。 因此，泵系統依賴通氣閥抽出連接止回閥與泵之管路 中空氣。 經濟部智慧財產局員工消費合作社印製 亦有主張整合通氣閥與止回閥，而非獨立設置。此建 議尙未實現，因可能導致止回閥本體變大，並改變用閥之 界面尺寸，致大小緣故，無法與習知物料更換。 尤係，人孔抽送系統設計可交互作動二平行管路，各 管路有一系列抽送及回流防止部，因爲系統充滿管線組成 元件，且系統佈局改變成本甚大，不能應用於習知人孔。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐Γ I ' 495597 A7 — B7 五、發明說明（3 ) (請先閱讀背面之注意事項再填寫本頁) 順巧，當此類球體止回閥作爲浸入式泵，用於推動含 5 - 1 0 m m大小碎石之污水，因球體止回閥之球體與含 有碎石之污水一致移向導引側，可能碎石陷入球體與導引 部之間。因此，球體不能停靠閥箱之落止部。 此情況可見圖2 2。參考圖示，當碎石5 1.進入閥箱 5 4中導引部5 3與球體5 2間隙，碎石5 1影響球體 5 2移動性。一旦發生後，球體5 2不能落下而精確停在 閥座上，即使泵不再排放流體。因爲碎石5 1不能靠泵運 轉除去，其引起的不便使解決落空。 發明槪述 本發明一目的提供球體止回閥，即使球體止回閥置於 水平管路，球體可允許落止。 本發明另一目的欲配合一球體止回閥總成之需求，使 用尚貫用性球體止回閥，其結構中主側上通氣功能可加至 止回閥，不致令止回閥變大，球體止回閥可保持精巧性， 與習知物料之組件更換性佳。 經濟部智慧財產局員工消費合作社印製 本發明另一目的提供一球體，即使碎石等異物已抵陷 入球體與本體中導引部某點，球體藉本身重量落至本體中 落止部，並防止異物陷入球體與導引部之間。 本發明另一目的提供栗裝置，.允許本發明球體止回閥 應用於習知人孔。 根據本發明一主題，提供球體止回閥包含一本體，本 體具一流徑及一轉出徑在其內，其主側上具有一入□，其 -6 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 495597 A7 __ B7 五、發明說明（4 ) (請先閱讀背面之注意事項再填寫本頁) 次側上有一出口，本體內建一球體·，一球體用落止部，係 置於本體入口內並朝向主側傾斜，在流徑水平狀態中，一 導引部可令落止部上落止之球體退回轉出徑，並導引退回 之球至落止部。 根據本發明另一主題，提供球體止回閥包含一本體， 本體具一流徑，其內有一轉出徑，在主側上有一入口，次 側上有一出口，本體內建一球體，本體入口內設置球體用 落止部，一導引部令落止部中落止之球體退入轉回徑，一 外側開口形成於本體入口之管路連接部側上，一內側開口 形成在入口與落止部之間，及一連通徑供連通外側開口與 內側開口。 根據本發明另一主題，提供球體止回閥包含一本體， 本體具一流徑，其內有一轉出徑，主側上有一入口，次側 上有一出口，本體內建一球體，一球體用落止部置於本體 入口中，並朝主側傾斜，流徑爲水平狀態，一導引部供導 引球體至落止部，球體縱軸，之頂點截交於流體流徑之方向 ，而相對於縱軸之導引件之內面於其間隙已大於混入流體 之異物尺寸。 經濟部智慧財產局員工消費合作社印製 根據本發明再一主題，提供泵裝置供排出貯槽之流m ，貯槽包含泵交互抽送及停止動作.，以控制貯槽中流體胃 定量，管線供排放由泵前送之貯槽液體至外部，及一 $ ® 止回閥可放入管線內，當泵停止時防止排出之流體回流°495597 Printed by A7 B7, Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs V. Description of the invention (1) Field of the invention The present invention relates to a ball check valve for pipeline processing fluids, such as service water, medium water, sewage, agricultural water, factories Sewage, various kinds of sewage, oil and gas, etc .; and the pump device using ball check valve for pumping liquid and oil in sewage tank, manhole pumping station and storage tank. This type of ball check valve includes a ball, which is formed by rubber or resin coating tightly covering a metal ball, and is built in a body. An inlet and an outlet are embedded in the body, a ball drop stop and a guide. The part can guide the ball provided in the body to return the ball to a position when the fluid flows normally, without hindering the fluid flow. When the fluid stops, move to the closed position with its own weight. This type of ball check valve is only suitable for vertical pipelines, that is, it cannot be used when the pipeline is turned horizontally. The guides located in the body of the cast metal need not always be of a fixed size and position, and often provide a free space for the diameter of the sphere relative to its diameter. When the check valve is set horizontally without releasing the load, the ball may prevent the ball from coming into contact with the stopper because of the horizontal state. One of the inventors mentioned the invention of the ball check valve, JP-A-10-231 , 941. The previous patent focuses on preventing the ball from flowing into the pipeline through the outlet or inlet, so that the minimum diameter of the body's inlet and outlet in the diameter direction is smaller than the diameter of the metal ball. Although the former invention is mainly used for vertical pipelines, it also discloses the structure. It is intended to be used for horizontal and vertical pipelines. A protrusion is provided at the drop stop. When the fluid stops flowing normally, the sphere hits the drop stop, and the ball moves To the position of the shut-off valve This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -4- -------------- Order -------- -(Please read the notes on the back before filling this page) 495597 A7 B7 V. Description of the invention (2) (Please read the notes on the back before filling this page) According to the previous invention, The centerline of the flow path is vertical, and the ball is not easily positioned on the landing stop when there is no load. In particular, when a large countercurrent occurs, although the sphere does fall and stop, it may cause water hammer. On the contrary, the drop and countercurrent is too small, the sphere will not effectively stop and cause the flow path to close poorly. Ball check valves have a variety of uses. If the pump system is used for manholes, the immersion pump is located on the upper part of the pump system. It has two (or one) pumping functions. It can operate to pump the fluid stored in the manhole and control the stored fluid to a fixed amount. After the pump is stopped, the check valve is set to a closed state to prevent fluid from flowing back. Generally, the pipeline connecting the check valve and pump has a vent valve next to the check valve to allow air to flow through the pipeline. When the pump is stopped, the water pressure difference on the secondary pipe activates the check valve and closes it. As such, the check valve cannot function due to the lack of pressure difference between the primary and secondary sides. In particular, the pump system requires that the pressure on the main side is properly reduced, and the pump uses the pump to extract the water on the main side. The air trapped in the main side pipeline must be extracted through the vent valve. When the pump starts to pump water, the capacity of the pump deteriorates due to air in the pipeline, and the air must be drawn out immediately through the vent valve. Therefore, the pump system relies on a vent valve to extract air from the line connecting the check valve to the pump. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Some have also advocated the integration of vent valves and check valves instead of independent installation. This suggestion is not implemented because it may cause the check valve body to become larger and change the interface size of the valve. Due to its size, it cannot be replaced with conventional materials. In particular, the manhole pumping system design can operate two parallel pipelines interactively. Each pipeline has a series of pumping and backflow prevention sections. Because the system is full of pipeline components and the cost of changing the system layout is very high, it cannot be applied to conventional manholes. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm Γ I '495597 A7 — B7) V. Description of the invention (3) (Please read the notes on the back before filling this page) By the way, when this Ball-like check valve is used as an immersion pump to push sewage containing gravel with a size of 5-10 mm. Because the ball of the ball check valve and the sewage containing gravel move to the guiding side, the gravel may fall into the sphere. Between the guide and the guide. Therefore, the sphere cannot stop at the stop of the valve box. This situation can be seen in Figure 2 2. Referring to the illustration, when the broken stone 5 1. enters the valve box 5 4 the guide 5 3 and the sphere 5 2 clearance, the gravel 5 1 affects the mobility of the sphere 5 2. Once it occurs, the sphere 5 2 cannot be dropped and stops precisely on the valve seat, even if the pump no longer discharges fluid. Because the gravel 5 1 cannot be removed by the pump operation, its The inconvenience caused makes the solution fail. SUMMARY OF THE INVENTION An object of the present invention is to provide a ball check valve, even if the ball check valve is placed in a horizontal pipeline, the ball can be allowed to fall and stop. Another object of the present invention is to cooperate with a ball check valve. To achieve the demand, the use of conventional ball check valve The ventilation function on the middle and main side can be added to the check valve, which does not make the check valve larger. The ball check valve can maintain the exquisiteness and the replacement of components with conventional materials is good. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Another object of the present invention is to provide a sphere, even if foreign objects such as crushed stones have already fallen into a point between the sphere and the guide in the body, the sphere falls to the stop portion of the body by its own weight, and prevents foreign objects from falling between the sphere and the guide Another object of the present invention is to provide a chestnut device that allows the ball check valve of the present invention to be applied to a conventional manhole. According to a subject of the present invention, a ball check valve is provided that includes a body having a first diameter and a rotation diameter. Inside, there is an entry on its main side, and its -6-this paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) 495597 A7 __ B7 V. Description of the invention (4) (Please read the back first Note on this page, please fill in this page again.) There is an exit on the secondary side. A sphere is built in the body. A sphere is used as a drop stop. Order According to another subject of the present invention, a ball check valve includes a body, and the body has a diameter, and a turning diameter is provided in the body. There is an entrance on the main side and an exit on the secondary side. A sphere is built in the body. A sphere drop stop is set in the body entrance. A guide makes the sphere in the drop stop retracted into the turning diameter. An opening is formed on the side of the pipe connection portion of the inlet of the body, an inside opening is formed between the inlet and the stop, and a communication diameter is provided for communicating the outside opening and the inside opening. According to another subject of the present invention, a ball check valve is provided. Containing a body, the body has a first diameter, inside there is a turning diameter, there is an inlet on the primary side, and an outlet on the secondary side, a sphere is built in the body, a sphere is placed in the body inlet with a drop stop and faces the main side Inclined, the flow path is horizontal, a guide for guiding the sphere to the landing stop, the apex of the sphere's longitudinal axis intercepts the direction of the fluid flow path, and the inner surface of the guide relative to the longitudinal axis lies on it The gap is larger than that of the mixed fluid Size thereof. According to yet another subject of the present invention, the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs provides a pump device for discharging the flow m from the storage tank, the storage tank contains pumps to interactively pump and stop the operation. Forward tank liquid to the outside, and a $ ® check valve can be placed in the pipeline to prevent the discharged fluid from flowing back when the pump is stopped °
根據本發明另一主題，提供泵裝置另具抽送及逆流防 止部，各包含泵及管線而成，而止回閥平行設置，並交S 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 495597 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（5) 貫現抽送及逆流防止功能。 圖式簡要說明 圖1爲本發明球體止回閥一例之縱向截面。 圖2部分切開巨觀圖，說明圖1所示落止部。 圖3爲圖1沿瓜一瓜之截面。 圖4爲圖1沿IV — IV之截面。. 圖5爲圖1沿V — v之截面。 圖6爲圖1沿VI -VI之截面。 圖7爲本發明球體止回閥另例正視圖。 圖8平面圖說明圖7止回閥具有一開關閥。 圖9爲圖7沿]X - κ線之放大截面。 圖1 0爲本發明球體止回閥另例正視圖。 圖1 1爲圖1 〇沿X I — X I線之放大截面。 圖1 2爲本發明球體止回閥另例正視圖。 圖13爲圖12之縱向截面。 圖1 4爲圖1 2所取放大橫向截面。 圖1 5爲圖1 4之部分截面。 圖1 6橫向截面說明止回閥另例。 圖17爲圖16之部分截面。 圖1 8立體圖說明本發明球體止回閥外觀，除去閥蓋 以顯不內部優點。 圖1 9說明可應用本發明球體止回閥之水平管路狀況 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -8- ------.—^--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 495597 A7 _B7_ 五、發明說明（6 ) 圖2 0說明可應用本發明球體止回閥之垂直管路狀況 〇 圖2 1說明一人孔泵系統例。 圖2 2部分截面圖說明習知球體止回閥一例。 主要元件對照表 1 本體 2 入口 3 出口 4 落止部 5 球體 5 a 金屬球 6 轉出徑 ------.—^--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 6 a 開口 7 閥 芸 rrrL 8 流 徑 9 導 引 部 1 〇 導 部 1 〇 a 定 位 部 1 1 突 出 部 1 2 突 出 部 1 3 凸 緣 1 3 a 連 接 孔 1 3 b 連 接 孔 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -9- 495597 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（7 ) 14 外側開口 15 內側開口 16 連通徑 17 母螺紋 19 開關閥 2 0 沈陷槽 2 2 人孔 22a 人孔蓋 2 3 流體 24 浸入式泵 2 4a 泵 2 4b 泵 2 5 入口管路 26a 主側管路 2 6b 次側管路 27 排放管路 2 9a 球體止回閥 2 9b 球體止回閥 3 0 螺帽 3 2 縱向線 3 3 頂點 3 4 內面 3 5 間隙 3 6 異物 (請先閱讀背面之注意事項再填寫本頁) —--------訂--------· 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- 經濟部智慧財產局員工消費合作社印製 495597 A7 B7__ 五、發明說明（8) 3 7 開關閥 5 1 碎石 5 2 球體 5 3 導引部 5 4 閥箱 實施例說明 參考圖1至6 ’詳細說明本發明球體止回閥一例。 如圖1 ，鑄造所成_鐵或不錄鋼本體1分別於主側有 一入口 2，次側有一出口 3 ，一環形落止部4靠近入口 2 ’容g午一球體5之轉出徑6靠近流徑8側形成，轉出徑6 之開口 6 a由一閥蓋7蓋住，閥蓋7經由螺栓及螺帽固定 。開口 6 a尺寸大於球體5，用於將球體5嵌入流徑8。 圖中’數字1 3及2 1代表凸緣，分別位於本體1相 對端點，用於聯接管路’數字1 6爲連通徑，以下將說明 ◦圖3之數字1 3 a爲連接孔。 球體5爲一金屬球5 a ，緊包·上一層橡皮或合成樹脂 。球體5外徑大於入口 2及出口 3之內徑。 如圖1及2，落止部4朝主側相對流徑8中心線C L 傾斜’流徑8保持爲水平狀恶。傾角<9適當設定。以傾角 定於4 5 ° ，同樣條件可達成於水平或垂直管路。若傾角 過大，橡皮或合成樹脂層可能隨時間變形，因爲球體5與 落止部4間壓迫力不均勻’受到不平衡負荷。故傾角可爲 3 0 °以上。較佳爲5至1 〇 ° ，因此傾角所生負荷差異 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -11 - ------^^--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 495597 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（9) 小，不易變形，所不例於圖2中相對C L採5。傾角0 ◦ 此角度有利於球體5落止。 本體1有一導引部9供導引球體5至轉出徑6，並防 止其朝出口移動。導引部9寬度小於球體5外徑。此外， 爲防止球體5飛出本體1 ，金屬球5 a外徑宜大於入口 2 內徑，導引部9寬度及出口 3內徑。 入口 2及出口 3及球體5之尺寸關係不限於上述直徑 關係。本例欲提供突出部分別於入口 2及出口 3 ，以使金 屬球5 a ，外徑大於突出部1 1及1 2。球5 a以交互長 短虛線界定，說明於圖5橫向相對部分，欲說明尺寸關係 。正常使用時，球未採說明狀態。‘ 導引部9另具一拱形導部1 0 ，係斜向主側，以供導 引球體5至落止部4。球體5由導引部9導引而滾動。導 部1 0位於其端部有一定位部1 0 a形如脊。球體沿水平 狀態之導部1 0滾動而落入定位部1 0 a。球體5接著受 自身重量陷向傾斜之落止部4側，無誤地落止於落止部。 換言之，定位部1 0 a迫使球體5朝向入口 2側。 以下說明實例運作。 當球體止回閥用於水平管路，由泵（未示）自主側供 應流體正常流動，球體5定位於轉出徑6 ，如圖1鏈線所 示。泵停止時，流體中止正常流動，轉出徑6之球體5沿 著導引部9移動朝向閥關閉位置，並進而導向拱形導部 1 0，最後位於定位部1 0 a。接著，球體5無誤地定位 於定位部1 0 a ，其重心略偏向主側，受導引至傾斜狀熊 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） - 12- ----1-----------訂--------- (請先閱讀背面之注意事項再填寫本頁) 495597 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（10) 之落止部4，並沈陷其上。球體5乃無誤地定位於落止部 4上。一旦流體正常流動，球體5與落止部4分開，並由 導引部9導引而退至轉出徑6。如此，流體平順由主側供 至次側，不引起大壓力損失。 上述例說明水平管路。其可同樣地應用至垂直管路。 此時，球體5以自身重量無誤地落止。 當本體1爲鑄造形物，僅須具尺寸精度之部件外形要 機械精加工。本體1所需精度來自加工導引部9，導部 1 〇或定位部1 0 a ，加上加工落止部4，水平或垂直管 路所用球體5可無誤地定位於落止部4。導引部1 0不限 於上述拱形，僅須傾向主側並導引球體至落止部即可。 參考圖7至1 1 ，說明本發明球體止回閥二例之其他 主題。 圖中，與前例相似部件以相同數字表示，不再贅述。 參考圖9及1 1 ，一外側開口 1 4形成於本體1入口 2之接管部（凸緣1 3 )上，一內側開口 1 5位於入口 2 與落止部4之間，外側開口 1 4與內側開口經由連通徑 1 6可彼此連通。連通徑1 6直徑可滿足條件，確保泵預 期最小容許抽送量，因爲連通徑必將於泵操作時引起流體 外溢，故須阻止流體排出，且須避免流體中異物阻塞流徑 ，當阻塞產生時，連通徑1 6必須阻止止回閥關閉動作。 外側開口 1 4形成於本體1部分升起所成之突出部1 a中 ，本例具有母螺紋1 7 (可用公螺紋）。 連通徑1 6 —例可相對流向採垂直方位，另一例如圖 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- ；---,-----------訂--------- (請先閱讀背面之注咅？事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 495597 A7 _ B7 五、發明說明（11) 1 1 ，可彎曲成內側開口 1 5在入口 2側上，令具有外側 出口 1 4之突出部1 a朝向落止部4。 以下詳述上二例。 首先如圖9 ，所用閥具較小直徑，如5 〇 πί m。當連 接於管路，使用螺栓（未示）及螺帽3 0 (圖7 )夾固至 凸緣1 3中四連接孔1 3 a (圖7 )。 本例根據圖7夾固條件，當二螺帽間距離相較外側開 口 1 4尺寸爲寬時，連通徑1 6置於二螺帽3 0之間’相 對流徑方向採垂直方向，以接合凸緣1 3之厚壁部。凸緣 部1 3之厚壁部因連通徑1 6出現而變薄。因凸緣1 3及 突出部1 a形成時，相鄰夾固部採特定壁厚度’可令連通 徑1 6忠實於規格，並確保凸緣1 3與管路連接強度’防 止改變閥體之界面尺寸。 相對地，如圖1 1例，所用閥較大，如不小於8〇 m m ◦若閥接至管路，須使用螺栓（未示）及螺帽3 0 ( 圖1 0 )夾固至凸緣1 3中八連接孔1 3 b (圖1〇）。 本例根據圖1 0夾固條件，具外側開口 1 4之突出部 1 a靠近落止部4，內側開口 1 5藉彎曲連通徑1 6而發 生在入口 2側，此時接合突出部1 a之二螺帽3 0間距離 小於外側開口 1 4之尺寸。因落止部4朝主側斜角Θ ，選 定內側開口 1 5之位置自由度變大，由製造觀點更易加工 連通部1 6。 就上述條件，將突出部1 a升起之位置可確保空間以 夾固螺栓及螺帽3 0，連接凸緣1 3至管路，類似習知力口 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） .----5-----------訂--------- (請先閱讀背面之注意事項再填寫本頁) -14- 495597 A7 B7 五、發明說明（12) 工，緊固螺栓及螺帽3 0，可無誤完成凸緣1 3與管路連 接。 如圖1 1例，由管路側將螺栓驅使進入對管路攻牙， 而非夾固螺栓及螺帽3 0，可設置連通徑相對流徑方向爲 垂直方向，類似圖9結構，更有利加工，並降低製造成本 〇 一開關閥1 9經由肘接頭1 8接至外側開口 1 4之母 螺紋，類似圖8結構。 一般上述球體止回閥定位於人孔內。尤其，人口抽送 系統充滿組成元件，包含管路，設計用於交互驅動二平行 管路，各由一系列抽送及回流防止部構成。欲改變系統佈 局之成本甚高。 將突出部1 a形成在本體1上，本體垂直於連接球體 5之轉出徑6中心線與流徑8中心徑之縱向截面，故系統 可直接應用於現有人孔，不須改變閥界面尺寸或改變系統 佈局。 參考圖9至1 1 ，在落止部4次側周界形成異物用環 形沈陷槽2 0，可供沙等異物收集於內，致異物不易捲入 落止部4之落止部與球體5間隙。 圖2 1說明人孔泵系統一例。人孔泵系統可將人孔 2 2所存流體2 3排至外部，人孔2 2具人孔蓋2 2 a及 入口管路25，系統具泵24a及24b ，用於交互抽送 及停止動作，乃控制流體2 3爲定量，排放管路2 7將行 進至泵之流體2 3排至外部，球體止回閥2 9 a及2 9 b 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁)According to another subject of the present invention, there is provided a pump device having a pumping and backflow prevention section, each of which includes a pump and a pipeline, and the check valves are arranged in parallel and submitted to S. This paper size is applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) 495597 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) Continual pumping and backflow prevention functions. Brief Description of the Drawings Fig. 1 is a longitudinal section of an example of a ball check valve according to the present invention. FIG. 2 is a partially cutaway macro view to illustrate the landing stop shown in FIG. 1. Fig. 3 is a cross-section along a melon of Fig. 1. FIG. 4 is a cross section taken along IV-IV in FIG. 1. Fig. 5 is a cross section taken along V-v of Fig. 1. FIG. 6 is a cross section taken along VI-VI in FIG. 1. FIG. 7 is a front view of another example of the ball check valve of the present invention. FIG. 8 is a plan view illustrating the check valve of FIG. 7 having an on-off valve. FIG. 9 is an enlarged cross section taken along the line X-κ of FIG. 7. FIG. 10 is a front view of another example of the ball check valve of the present invention. FIG. 11 is an enlarged cross-section of FIG. 10 along line X I-X I. FIG. Figure 12 is a front view of another example of the ball check valve of the present invention. FIG. 13 is a longitudinal section of FIG. 12. FIG. 14 is an enlarged transverse section taken in FIG. 12. FIG. 15 is a partial cross-section of FIG. 14. Figure 16 illustrates another example of a check valve in a transverse section. FIG. 17 is a partial cross-section of FIG. 16. Figure 18 is a perspective view illustrating the appearance of the ball check valve of the present invention, with the valve cover removed to show internal advantages. Figure 19 illustrates the horizontal pipeline conditions applicable to the ball check valve of the present invention. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -8- ------.- ^- ------ Order --------- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7 _B7_ V. Description of Invention (6) Figure 2 0 illustrates the vertical pipeline condition where the ball check valve of the present invention can be applied. FIG. 21 1 illustrates an example of a manhole pump system. Fig. 2 is a partial sectional view illustrating an example of a conventional ball check valve. Comparison table of main components 1 Main body 2 Inlet 3 Outlet 4 Falling stop 5 Spherical body 5 a Metal ball 6 Turning out diameter --------.- ^ -------- Order -------- -(Please read the precautions on the back before filling in this page) 6 a opening 7 valve rrrL 8 flow path 9 guide 1 〇 guide 1 〇a positioning 1 1 protruding 1 2 protruding 1 3 flange 1 3 a connection hole 1 3 b connection hole The paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) -9- 495597 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ) 14 Outer opening 15 Inner opening 16 Communication diameter 17 Female thread 19 On-off valve 2 0 Submerged groove 2 2 Manhole 22a Manhole cover 2 3 Fluid 24 Immersion pump 2 4a Pump 2 4b Pump 2 5 Inlet pipe 26a Main side pipe Road 2 6b Secondary line 27 Drain line 2 9a Ball check valve 2 9b Ball check valve 3 0 Nut 3 2 Longitudinal line 3 3 Vertex 3 4 Inner surface 3 5 Clearance 3 6 Foreign matter (please read the back (Please note this page before filling in this page) —-------- Order -------- · This paper size applies to Chinese national standards (CN S) A4 specification (210 X 297 mm) -10- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7 B7__ V. Description of the invention (8) 3 7 On-off valve 5 1 Crushed stone 5 2 Sphere 5 3 Guide 5 4 Description of the valve box embodiment An example of the ball check valve of the present invention will be described in detail with reference to FIGS. 1 to 6 ′. As shown in Figure 1, the cast iron or non-recorded steel body 1 has an inlet 2 on the primary side, an outlet 3 on the secondary side, and a ring-shaped stop 4 near the inlet 2 'the capacity of the ball 5 and the diameter 6 It is formed near the side of the flow path 8, and the opening 6a of the turning-out diameter 6 is covered by a valve cover 7, which is fixed by bolts and nuts. The opening 6 a is larger in size than the sphere 5 and is used to embed the sphere 5 in the flow path 8. In the figure, the numerals 1 3 and 21 represent flanges, which are located at the opposite ends of the main body 1 respectively, and are used to connect the pipelines. The numeral 16 is a communication diameter, which will be described below. The numeral 1 a in FIG. 3 is a connection hole. The sphere 5 is a metal ball 5 a, which is tightly packed and covered with a layer of rubber or synthetic resin. The outer diameter of the sphere 5 is larger than the inner diameter of the inlet 2 and the outlet 3. As shown in Figs. 1 and 2, the landing stop 4 is inclined toward the main side with respect to the center line C L of the flow path 8 'and the flow path 8 is kept horizontal. The inclination angle < 9 is appropriately set. With an inclination angle of 45 °, the same conditions can be achieved for horizontal or vertical pipelines. If the inclination angle is too large, the rubber or synthetic resin layer may be deformed with time, because the uneven pressing force between the sphere 5 and the landing stop 4 is subjected to an unbalanced load. Therefore, the inclination angle can be more than 30 °. It is preferably 5 to 10 °, so the difference in load caused by the inclination angle applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -11------- ^^ ----- --- Order --------- (Please read the precautions on the back before filling out this page) 495597 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (9) Small and difficult to deform So, for example, in Figure 2, 5 is taken relative to CL. Tilt angle 0 ◦ This angle is conducive to the sphere 5 falling and stopping. The body 1 has a guide portion 9 for guiding the sphere 5 to the turning-out diameter 6 and preventing it from moving toward the exit. The width of the guide portion 9 is smaller than the outer diameter of the sphere 5. In addition, in order to prevent the sphere 5 from flying out of the body 1, the outer diameter of the metal ball 5a should be larger than the inner diameter of the inlet 2, the width of the guide 9 and the inner diameter of the outlet 3. The dimensional relationship between the inlet 2 and the outlet 3 and the sphere 5 is not limited to the above-mentioned diameter relationship. In this example, it is intended to provide the protrusions at the entrance 2 and the exit 3 respectively, so that the metal ball 5 a has an outer diameter larger than the protrusions 1 1 and 12. The ball 5a is defined by the interactive long and short dashed lines, and is illustrated in the horizontally opposite part of FIG. 5 to illustrate the dimensional relationship. In normal use, the ball does not adopt the stated state. ‘The guide portion 9 has another arch-shaped guide portion 10, which is inclined obliquely to the main side for guiding the ball 5 to the landing stop 4. The sphere 5 is guided by the guide portion 9 and rolls. The guide portion 10 has a positioning portion 10 a at its end shaped like a ridge. The sphere rolls along the guide part 10 in the horizontal state and falls into the positioning part 10 a. The sphere 5 then sinks to the inclined stopper 4 side by its own weight, and falls to the stopper without fail. In other words, the positioning portion 10 a forces the sphere 5 toward the entrance 2 side. The following describes the example operation. When the ball check valve is used for horizontal pipelines, the pump (not shown) autonomously supplies fluid to flow normally, and the ball 5 is positioned at the turning diameter 6 as shown in the chain line of FIG. 1. When the pump is stopped, the normal flow of fluid is stopped, and the ball 5 with a diameter of 6 moves along the guide 9 toward the valve closing position, and then guides the arched guide 10 and finally locates at the positioning portion 10 a. Next, the sphere 5 is positioned at the positioning portion 10 a without error, its center of gravity is slightly biased to the main side, and it is guided to the slanted Kumamoto paper. The size of the paper conforms to the Chinese National Standard (CNS) A4 (210 X 297 mm)-12-- --- 1 ----------- Order --------- (Please read the notes on the back before filling out this page) 495597 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (10) The falling stop 4 and sinks on it. The sphere 5 is positioned on the stopper 4 without error. Once the fluid flows normally, the sphere 5 is separated from the stopper 4 and guided by the guide portion 9 to retreat to the turning-out diameter 6. In this way, the fluid is smoothly supplied from the primary side to the secondary side without causing a large pressure loss. The above example illustrates a horizontal pipeline. It is equally applicable to vertical pipes. At this time, the sphere 5 falls to its own weight without fail. When the main body 1 is a cast shape, only the shape of the component having dimensional accuracy is required to be mechanically finished. The required accuracy of the main body 1 comes from the processing guide 9, the guide 10 or the positioning portion 10 a, plus the processing stop 4, and the ball 5 used for the horizontal or vertical pipe can be positioned on the stop 4 without error. The guide portion 10 is not limited to the above-mentioned arch shape, and it is only necessary to incline the main side and guide the sphere to the landing portion. With reference to Figs. 7 to 1, other subjects of the two examples of the ball check valve according to the present invention will be described. In the figure, components similar to the previous example are indicated by the same numerals, and will not be described again. Referring to FIGS. 9 and 1 1, an outer opening 14 is formed on the pipe connecting part (flange 1 3) of the inlet 2 of the body 1, an inner opening 15 is located between the entrance 2 and the stopper 4 and the outer opening 14 and The inside openings can communicate with each other via the communication diameter 16. The connecting diameter of 16 diameters can meet the conditions to ensure the expected minimum pumping capacity of the pump. Because the connecting diameter will cause fluid to overflow when the pump is in operation, it is necessary to prevent the fluid from being discharged, and to prevent the foreign material in the fluid from blocking the flow path. The communication diameter 16 must prevent the check valve from closing. The outer opening 14 is formed in the protruding portion 1 a formed by the part of the main body 1 being raised. In this example, a female thread 17 (a male thread can be used). Connected diameter 16—Examples can be taken in a vertical orientation relative to the flow direction. Another example is the paper size of the book, which applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -13-; ---, ------ ----- Order --------- (Please read the note on the back? Matters before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7 _ B7 V. Description of Invention (11 ) 1 1, which can be bent so that the inside opening 15 is on the inlet 2 side, so that the protruding portion 1 a with the outside outlet 14 faces the drop stop 4. The above two examples are detailed below. First, as shown in Figure 9, the valve used has a smaller diameter, such as 50 μm. When connecting to the pipeline, use bolts (not shown) and nuts 30 (Figure 7) to clamp to the four connection holes 1 3a in the flange 13 (Figure 7). In this example, according to the clamping conditions in Fig. 7, when the distance between the two nuts is wider than the outer opening 14, the communication diameter 16 is placed between the two nuts 30. The vertical direction of the relative flow path is used to join Thick wall portion of flange 1 3. The thick wall portion of the flange portion 13 is thinned by the appearance of the communication diameter 16. Because the flange 13 and the protruding portion 1 a are formed, adopting a specific wall thickness of the adjacent clamping portion can make the communication diameter 16 be faithful to the specifications, and ensure the connection strength between the flange 13 and the pipeline to prevent changing the valve body. Interface size. In contrast, as shown in the example in Figure 11, the valve used is larger, if it is not less than 80mm. ◦ If the valve is connected to the pipeline, it must be clamped to the flange with bolts (not shown) and nuts 30 (Figure 10). 1 3 in 8 connecting holes 1 3 b (Figure 10). In this example, according to the clamping condition of Fig. 10, the protruding portion 1a with the outer opening 14 is close to the stopper portion 4, and the inner opening 15 occurs at the entrance 2 side by the curved communication diameter 16. At this time, the protruding portion 1a is joined. The distance between the two nut 30 is smaller than the size of the outer opening 14. Since the stopper portion 4 is inclined toward the main side by an inclination angle Θ, the degree of freedom in selecting the position of the inner opening 15 becomes larger, and it is easier to process the connecting portion 16 from a manufacturing viewpoint. Under the above conditions, the raised position of 1 a can ensure the space to clamp bolts and nuts 30, and connect flange 13 to the pipeline, similar to the conventional force. This paper applies the Chinese National Standard (CNS) A4. Specifications (210 X 297 mm) .---- 5 ----------- Order --------- (Please read the precautions on the back before filling this page) -14 -495597 A7 B7 V. Description of the invention (12) Work, tighten bolts and nuts 30, can complete the flange 13 and pipeline connection without error. As shown in the example in Figure 11, the bolt is driven into the tapping of the pipeline by the side of the pipeline, instead of clamping the bolt and the nut 30. The communication diameter can be set to be perpendicular to the direction of the flow path, similar to the structure in Figure 9, which is more advantageous for processing. And reduce the manufacturing cost. A switching valve 19 is connected to the female thread of the outer opening 14 through an elbow joint 18, similar to the structure of FIG. Generally, the ball check valve is positioned in a manhole. In particular, the population pumping system is full of constituent elements, including pipelines, designed to interactively drive two parallel pipelines, each consisting of a series of pumping and backflow prevention units. The cost of changing the system layout is very high. The protrusion 1 a is formed on the body 1, and the body is perpendicular to the longitudinal section of the center diameter of the turning diameter 6 and the flow diameter 8 center diameter of the connecting sphere 5, so the system can be directly applied to the existing manhole without changing the valve interface size Or change the system layout. With reference to FIGS. 9 to 11, a ring-shaped sinker 20 for foreign matter is formed on the 4th side perimeter of the stopper, so that foreign matter such as sand can be collected inside, and it is difficult for the foreign matter to be caught in the stopper 4 and the sphere 5 gap. Figure 21 illustrates an example of a manhole pump system. The manhole pump system can drain the fluid 2 3 stored in the manhole 2 2 to the outside. The manhole 22 has a manhole cover 2 2 a and an inlet pipe 25. The system has pumps 24a and 24b for interactive pumping and stopping actions. The control fluid 2 3 is quantitative, the discharge line 2 7 discharges the fluid traveling to the pump 2 3 to the outside, and the ball check valves 2 9 a and 2 9 b. This paper size applies to Chinese National Standard (CNS) A4 specifications (210 X 297 mm) (Please read the notes on the back before filling this page)
I · .^1 «I.^OJ· ϋ I I si. 經濟部智慧財產局員工消費合作社印製 -15- 經濟部智慧財產局員工消費合作社印製 495597 A7 __ B7 五、發明說明（13) 各間置於與排放管路2 7連接之主側管路2 6 a與次側管 路2 6 b之間，在泵停止時可防止排出之流體回流。 本例，二行抽送及回流防止功能2 8係平行設置，係 包含泵24a與24b，管路26a，26b及止回閥 2 9 a或2 9 b ，這些抽送及回流防止功能2 8爲交互運 轉。 以下說明本例操作。 參考圖2 1 ，當本發明球體止回閥用於人孔2 2用泵 系統’球體止回閥2 9 a及2 9 b置於二行浸入式泵之主 側管路上方。泵2 4 a及2 4 b係控制人孔2 2所存流體 2 3固定爲定量。泵2 4 a及2 4b停止後，球體止回閥 2 9 a及2 9 b採停止狀態，並防止流體回流。 如此，二泵2 4 a及2 4 b係交互運轉。當任一管線 有問題，其餘管線防止系統產生麻煩。 當泵2 4 a與2 4 b準備停止而抽出球體止回閥 2 9 a及2 9 b之主側上部分之水時，周圍空氣經由球體 止回閥2 9 a及2 9 b之連通徑1 6由開關閥1 9引入主 側管路2 6 a內部，同時，轉出徑6中各球體依序於流體 正常流動停止時，以本身重量沿導引部9移動，由導部 1 〇導引，定位於定位部1 0 a。然後，球體5之重心略 偏向主側，乃被導引而沈陷靠近傾斜狀態之落止部4，同 時’球體5無誤固定至落止部4，因主側壓力小於次側壓 力’而次側管路2 6 b之水頭壓力因此可止住流動。 換言之，利用經由流通徑1 6進入之空氣，主側管路 本紙張尺度適用中國國家標準（CNS)A4規格（210 χ 297公釐） -16- ------.——1 — φ^------- —訂--------- (請先閱讀背面之注意事項再填寫本頁) 495597 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（14) 2 6 a內流體抽出，球體止回閥在主側及次側間產生壓差 ’帶領球體5與落止部4完全關閉。 當泵2 4 a及2 4 b驅動推進流體，其容量未降低， 因爲主側管路2 6 a中空氣經開關閥1 9由連通徑2 6抽 至外部。當流體開始正常流動，即由主側供至次側，再經 排放管路2 8排出，不引起壓力損失。 參考圖1 2至2 0說明本發明球體止回閥另例。圖中 相似部件以相似符號表示，不再贅述。 參考圖1 3 ，完成球體止回閥，係於鑄造（如溶蠟法 )之―鐵、不錄鋼或高功能樹脂等本體主側上形成一入口 2 ’次側上一出口 3，設置環形落止部4靠近入口 2，形 成一轉出徑6供退出球體5於流徑8外側，並以螺帽（未 示）及螺帽7 a固定而以閥蓋7蓋住轉出徑6之開口 6 a 〇 因轉出徑6之開口 6 a尺寸大於球體5外徑，允許球 體6定位於轉出徑6 ，當泵停止時，即以導引部9導引正 確落至落止部4，即使有碎石異物陷入亦然。 此外’當大致交叉垂直於流體流徑方向3 1之球體5 縱線3 2之頂點3 3與相對縱線3 2之導引部9內面3 4 間產生之間隙3 5 (圖1 4 )之尺寸，應大於流體中如碎 石異物3 6之尺寸，如圖1 5及1 7所示，同時由導引部 9導引球體5。 碎石異物直徑約5 - 1 〇 m m，視污水處理之人孔泵 系統使用條件而定。異物有各式形狀。若爲楔形，產生極 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -17- ------,---1-----------訂--------- (請先閱讀背面之注意事項再填寫本頁) 495597 A7 B7 五、發明說明（15) (請先閱讀背面之注意事項再填寫本頁) 不佳後果◦若本例間隙3 5爲最小之1 2 m m，此尺寸僅 寬容超過1 0 m m，即異物預期直徑最大値。根據異物 3 6尺寸及球體止回閥尺寸設定間隙3 5 ，球體可平順運 動，證實止回閥功能。 上述用語 ''導引部之內面3 4 〃不欲完全用於導引部 9之部分，亦指導引部9導引球體5滾動時靠近本體之內 面。故本發明球體止回閥產生間隙3 5在球體5中心線 3 2頂點3 3與本體內面間，其範圍令球體5滾動設定幅 度超過流體內碎石異物之尺寸。 落止部4相對流徑中心線斜向主側。當閥水平使用， 移動至關閉位置之球體5經導引至傾斜之落止部，其重心 略偏向主側，而與落止部4壓力接觸。故球體5完美落止 〇 此傾角可適當設定，較佳爲5 - 1 0度。本例以5 ° 爲傾角。 經濟部智慧財產局員工消費合作社印製 本例以二連通徑1 6置於本體1入口 2側上彼此相對 之二位置，如圖1 4或1 6所示。設置此連通徑1 6彼此 相對之原因爲球體止回閥可聯接至垂直或水平管路，視設 置條件，連通徑1 6可適當選定。 可允許保持連通徑1 6之外側開口 1 4正常爲關閉， 當須使用時再打開。 圖1 9說明使用球體止回閥於水平管路，圖2 0則用 於垂直管路。這些圖說明人孔蓋2 2 a及人孔泵系統，供 排放人孔2 2所存流體2 3至外部。尤其，各系統包含一 -18- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 495597 A7 -- B7 五、發明說明（16) 泵2 4交互抽送及停止動作，以控制所存流體爲定量，排 放管路2 7將泵推進之所存流體2 3排至外部，一球體止 回閥2 9置於與排放管路2 7連接之主側管路2 6 a及次 側管路2 6 b之間，當泵停止時，防止排出之流體回流。 各例設置一條抽送及回流防止功能2 8，其包含一泵 24，管路26a及26b，及止回閥29。 各圖中數字3 7爲開關閥，置.於球體止回閥次側。此 開關閥3 7爲一閘閥，球閥等，在保養時操作於關閉狀態 〇 如圖1 9及2 0，如球體之開關閥1 9經由肘接頭接 至外側開口 1 4之母螺紋1 7。 開關閥1 9 ，可如圖1 9置於水平管路，或圖2 0之 垂直管路中，可調整泵推進量及空氣抽出量，視個別人孔 泵系統而定。 茲說明圖1 9及2 0之操作例。 當本發明球體止回閥使用人孔2 2之泵系統，球體止 回閥2 9置於一條浸入式泵2 4之主側管路2 6 a —端， 操作泵2 4將人孔中流體2 3抽出，以經常控制流體2 3 爲定量。泵停止時，球體止回閥2 9關閉，防止流體回流 〇 開始，一旦周圍空氣經球體止回閥2 9之連通徑1 6 由開關閥1 9吸入主側管路2 6 a準備抽出球體止回閥 2 9之主側水部分，藉以停止泵2 4，流體停止正常流動 ，轉出徑6中球體以本身重量沿導引部9移動，由導部 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 19- ------,—^--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 495597 A7 B7 五、發明說明（17) 1〇指引，而定位於定位部1 0 a ◦因此，球體5在重心 略偏向主側之狀態下，受導引而傾斜地壓靠落止部4 0立 即，因主側壓力小於次側壓力，球體5無誤地定位於落止 部4，因此次側管路2 6 b之水頭壓力證實功能停止流體 回流。 當泵2 4推進流體時，其容量未降，因主側管路 2 6 a中空氣經開關閥1 9前進經過連通徑1 6而抽至外 部。當流體開始正常流動，即由主側供至次側，壓力損失 幾無，並排經次側管路2 6 b，此係因球體5與落止部4 分開，由導引部9導引而依切斷徑6方向退出。 本例如圖1 5及1 7所示，幾乎垂直交叉流體流徑方 向3 1之球體5縱向線3 2頂點3 3與相對縱向線3 2之 導引部9內面3 4間之間隙3 5尺寸大於流體中碎石等異 物3 6尺寸。即使碎石異物流入球體止回閥而卡住於球體 5與導引部9內面間，受自身重量落下之球體5不會被異 物3 6卡住，可配合異物一致一直落下。故不會使球體5 被異物卡住。 上述各例使用本發明球體止回閥於人孔泵系統等裝置 ，亦可廣泛廣於水下管路，供貯存及循環流體，如雨水。 根據本發明，即使止回閥用於水平管路，可如垂直管 路密封流體。即使無負荷’球體利用流體負壓無誤地落止 ，防止流體回流。 本發明球體止回閥可具抽出空氣功能，但不須擴大球 體止回閥，有助其精巧。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） .—；—--------訂--------- ΜΨ (請先閱讀背面之注意事項再填寫本頁) -20 - 495597 A7 B7 五、發明說明（1δ) 適當設定直徑證實抽空氣功能，並防止流體中異物阻 塞，連通徑完美保持抽送功能。 根據本發明，碎石異物易至位置卡住於球體與本體中 導引部之間，已可避免吸入於球體與導引部之間。球體以 本身重量無誤地移動至本體中落止部，證實長時間作爲球 體止回閥之功能，不引起流體漏失。 再者，本發明球體止回閥允許建造泵裝置應用於現有 人孔，與習知止回閥交換性極佳。 -------.---,—--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -21 -I ·. ^ 1 «I. ^ OJ · ϋ II si. Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -15- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7 __ B7 V. Description of Invention (13) Each Interposed between the main-side pipe 2 6 a and the secondary-side pipe 2 6 b connected to the discharge pipe 27, which can prevent the discharged fluid from flowing back when the pump is stopped. In this example, two rows of pumping and backflow prevention functions 28 are arranged in parallel, which include pumps 24a and 24b, pipelines 26a, 26b and check valves 2 9a or 2 9b. These pumping and backflow prevention functions 28 are interactive. Operational. The operation of this example is explained below. Referring to FIG. 21, when the ball check valve of the present invention is used in a manhole 22, the pump system 'ball check valves 2 9a and 2 9b are placed above the main line of a two-row immersion pump. The pumps 2 4 a and 2 4 b control the fluid 2 3 stored in the manhole 2 2 to be fixed. After the pumps 2 4 a and 2 4b stop, the ball check valves 2 9 a and 2 9 b stop and prevent the fluid from flowing back. In this way, the two pumps 2 4 a and 2 4 b are operated alternately. When any line is defective, the remaining lines prevent the system from causing trouble. When the pumps 2 4 a and 2 4 b are ready to stop and draw out the water on the main side of the ball check valves 2 9 a and 2 9 b, the surrounding air passes through the communication paths of the ball check valves 2 9 a and 2 9 b. 16 is introduced into the main-side pipeline 2 6 a by the on-off valve 19, and at the same time, when the spheres in the turning diameter 6 stop in accordance with the normal flow of the fluid, it moves along the guide 9 with its own weight and is guided by the guide 1 Guided and positioned at the positioning portion 10 a. Then, the center of gravity of the sphere 5 is slightly deviated to the main side, and is guided to sink close to the falling stop 4 of the inclined state. At the same time, the sphere 5 is fixed to the stop 4 without error. The head pressure in line 2 6 b thus stops the flow. In other words, using the air entering through the circulation path 16, the paper size of the main-side pipe applies the Chinese National Standard (CNS) A4 specification (210 χ 297 mm) -16- ------.—— 1 — φ ^ ------- —Order --------- (Please read the notes on the back before filling out this page) 495597 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description ( 14) The fluid is drawn out within 2 a, the ball check valve generates a pressure difference between the primary side and the secondary side to lead the ball 5 and the drop stop 4 to completely close. When the pumps 2 4 a and 2 4 b drive the propulsion fluid, their capacity is not reduced, because the air in the main-side pipe 2 6 a is drawn from the communication path 26 to the outside through the on-off valve 19. When the fluid starts to flow normally, it is supplied from the primary side to the secondary side, and then discharged through the discharge line 28 without causing pressure loss. Another example of the ball check valve of the present invention will be described with reference to FIGS. 12 to 20. Similar components in the figure are represented by similar symbols and will not be described again. Referring to FIG. 13, the ball check valve is completed. It is formed on the main side of the body of the casting (such as the wax-dissolving method) —iron, stainless steel, or high-performance resin. An inlet 2 is formed on the secondary side and an outlet 3 is set on the secondary side. The drop stop 4 is close to the entrance 2 to form a turning-out diameter 6 for the exiting sphere 5 outside the flow path 8 and fixed with a nut (not shown) and a nut 7 a to cover the turning-out diameter 6 with a valve cover 7 Opening 6 a 〇 Because the opening 6 a of the diameter 6 is larger than the outer diameter of the ball 5, the ball 6 is allowed to be positioned at the diameter 6 of the output. When the pump is stopped, it is guided to the landing part 4 by the guide 9. , Even if there is a foreign body falling into the gravel. In addition, a gap 3 5 is generated between the sphere 5 that is approximately perpendicular to the fluid flow path direction 3 1 and the apex 3 3 of the vertical line 3 2 and the inner surface 3 4 of the guide 9 opposite the vertical line 3 2 (Figure 1 4) The size should be larger than the size of foreign matter 36 in the fluid, as shown in Figs. 15 and 17, and the sphere 5 is guided by the guide 9 at the same time. The diameter of the foreign body of the crushed stone is about 5-10 mm, depending on the operating conditions of the manhole pump system for sewage treatment. Foreign objects come in various shapes. If it is wedge-shaped, the size of the produced paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) -17- ------, --- 1 ----------- Order --------- (Please read the precautions on the back before filling out this page) 495597 A7 B7 V. Description of the invention (15) (Please read the precautions on the back before filling out this page) Bad consequences ◦ If the gap 35 in this example is the smallest of 12 mm, this dimension only tolerates more than 10 mm, that is, the expected diameter of the foreign object is the largest. Set the gap 3 5 according to the size of the foreign body 3 6 and the size of the ball check valve. The ball can move smoothly, confirming the check valve function. The term "inner surface 3 4 导引 of the guide portion" is not intended to be completely used for the portion of the guide portion 9 and also guides the guide portion 9 to guide the ball 5 to approach the inner surface of the body when rolling. Therefore, the ball check valve of the present invention generates a gap 3 5 between the center line 3 2 apex 3 3 of the ball 5 and the inner surface of the body. The range is such that the ball 5 rolls to a set width larger than the size of the foreign debris in the fluid. The drop stop 4 is inclined obliquely to the main side with respect to the center line of the flow path. When the valve is used horizontally, the ball 5 moved to the closed position is guided to the inclined drop stop, and its center of gravity is slightly biased to the main side, and it comes into pressure contact with the drop stop 4. Therefore, the sphere 5 falls and stops perfectly. This inclination angle can be appropriately set, preferably 5-10 degrees. This example uses an angle of 5 °. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This example uses two communication paths 16 to be placed on two sides of the main body 1 entrance 2 opposite to each other, as shown in Fig. 14 or 16. The reason for setting this communication diameter 16 is that the ball check valve can be connected to vertical or horizontal pipelines. Depending on the setting conditions, the communication diameter 16 can be appropriately selected. It is permissible to keep the communication opening 16 outside the opening 1 4 normally closed, and then open it when necessary. Figure 19 illustrates the use of ball check valves in horizontal pipelines, and Figure 20 for vertical pipelines. These figures illustrate the manhole cover 22a and the manhole pump system for discharging the fluid 23 stored in the manhole 22 to the outside. In particular, each system contains one -18- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7-B7 V. Description of the invention (16) The pump 2 4 alternately pumps and stops the action to control the stored fluid as a fixed amount. The discharge line 2 7 discharges the stored fluid 2 3 pushed by the pump to the outside. A ball check valve 2 9 is connected to the discharge line 27. Between the main side pipeline 2 6 a and the secondary side pipeline 2 6 b, when the pump is stopped, the discharged fluid is prevented from flowing back. Each example is provided with a pumping and backflow prevention function 28, which includes a pump 24, lines 26a and 26b, and a check valve 29. Numbers 37 in each figure are on-off valves, placed on the secondary side of the ball check valve. This on-off valve 37 is a gate valve, ball valve, etc., which is operated in a closed state during maintenance. ○ As shown in Figures 19 and 20, the on-off valve 19 such as a ball is connected to the female thread 17 of the outer opening 14 through an elbow joint. The on-off valve 19 can be placed in the horizontal pipeline as shown in Figure 19 or the vertical pipeline in Figure 20. The pump advancement and air extraction can be adjusted, depending on the individual manhole pump system. The operation examples of FIGS. 19 and 20 are described below. When the ball check valve of the present invention uses a manhole 22 pump system, the ball check valve 29 is placed on the main side line 2 6 a of an immersion pump 24 and the pump 24 is operated to remove the fluid in the manhole. 2 3 is withdrawn, and the constant control fluid 2 3 is used as the basis weight. When the pump is stopped, the ball check valve 2 9 is closed to prevent the fluid from flowing back. Once the ambient air passes through the ball check valve 2 9 the communication diameter 1 6 is sucked into the main side pipe 2 9 by the on-off valve 1 9 and is ready to be drawn out The main side water part of the return valve 2 9 stops the pump 2 4 and the fluid stops flowing normally. The ball in the diameter 6 moves along the guide 9 with its own weight. The paper size of the guide applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 19- ------,-^ -------- Order --------- (Please read the precautions on the back before filling this page ) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495597 A7 B7 V. Description of the invention (17) 10 guidelines and positioning at the positioning section 10 a ◦ Therefore, the sphere 5 is guided under the state where the center of gravity is slightly biased to the main side As a result, the ball 5 was slantly pressed against the drop stop 40 immediately. Because the primary pressure was less than the secondary pressure, the sphere 5 was positioned at the drop stop 4 without error. Therefore, the head pressure of the secondary pipe 2 6 b confirmed the function to stop fluid backflow. When the pump 2 4 propels the fluid, its capacity has not decreased, because the air in the main-side pipe 2 6 a is advanced through the on-off valve 19 and passed through the communication path 16 to be drawn to the outside. When the fluid starts to flow normally, that is, it is supplied from the primary side to the secondary side, there is almost no pressure loss, and it passes side by side through the secondary pipeline 2 6 b. This is because the sphere 5 is separated from the stopper 4 and guided by the guide 9 Exit in the direction of cutting diameter 6. In this example, as shown in FIGS. 15 and 17, a gap 3 5 between a sphere 5 longitudinal line 3 2 vertex 3 3 and an inner surface 3 4 of the guide 9 opposite to the longitudinal line 3 2 almost crosses the fluid flow path direction 3 1. The size is larger than the size of foreign matter such as crushed stones in the fluid. Even if the crushed stone foreign matter flows into the ball check valve and gets stuck between the ball 5 and the inner surface of the guide 9, the ball 5 dropped by its own weight will not be caught by the foreign matter 36, and it can always fall with the foreign matter. Therefore, the sphere 5 will not be caught by foreign objects. The above examples use the ball check valve of the present invention in devices such as manhole pump systems, and can also be widely used in underwater pipelines for storage and circulation of fluids, such as rainwater. According to the present invention, even if a check valve is used for a horizontal pipe, fluid can be sealed like a vertical pipe. Even if the no-load 'sphere is stopped without error by the negative pressure of the fluid, it prevents the fluid from flowing back. The ball check valve of the present invention can have the function of extracting air, but it is not necessary to enlarge the ball check valve, which helps its exquisiteness. This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm). —; ————— Order --------- ΜΨ (Please read the notes on the back first (Fill in this page again) -20-495597 A7 B7 V. Description of the invention (1δ) Properly set the diameter to confirm the air extraction function, and prevent foreign matter in the fluid from blocking, and the communication diameter perfectly maintains the pumping function. According to the present invention, the crushed stone foreign matter is easily caught between the ball and the guide in the body, and it is possible to avoid inhalation between the ball and the guide. The ball was moved to the bottom stop part of the body with its own weight without error, which confirmed that it functions as a ball check valve for a long time without causing fluid leakage. Furthermore, the ball check valve of the present invention allows the construction of a pump device to be applied to an existing manhole, and has excellent interchangeability with a conventional check valve. -------.---, ---------- Order --------- (Please read the notes on the back before filling this page) The paper size printed by the consumer cooperative is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -21-