M354453 八、新型說明： 【新型所屬之技術領域】 本創作是有關於一種流體過濾設備（fluid filtration equipment)及其固定裝置（fastening device)，且特別是 有關於一種固定雙開口筒式濾芯（d〇Uble-〇pen-end filter cartridge)的流體過濾設備及其固定裝置。 【先前技術】 過濾操作廣泛應用於各領域，尤其是用於分離液體中 的固體顆粒’或是用於分離氣體中的粉塵。-般過濾是指 ，離懸洋在流體巾之雜質，例如粉塵、溶解性無機物、餘 氯、有機化合物、金屬離子等。 、對於液體品質之需求而言’通常使用—流體過渡設備 來濾除液體之雜質。流體過濾設備的内部通常具有多個過 濾、體’例如雙開口筒式據芯，以達到淨化液體的目的。過 渡的原理是使流體通過雙開σ筒式濾加形賴液，截留 下來的錢留存在雙開口筒式濾芯上。—般雙開口筒式慮 芯的材質為-具有微小⑽及吸·力的多孔材料，例如 矽藻化石、活性碳及離子樹脂等。 具體而言，流體過濾設備包括一容置槽與一固定裝 置。固找以固定雙開口筒式濾芯，以避免雙開口筒 式渡芯沿㈣義並___轉 可裝卸自如地套設_定裝置。當淨化性糾低Γ補 由更換新的雙開口筒式濾芯來維持淨化性能。 M354453 圖1為習知之雙開口筒式濾芯的示意圖。請參考圖i， 雙開口筒式濾芯10具有兩個端面（endsurface) 12，且雙 開口筒式濾芯10的一中心軸部14呈中空。 又 圖2為習知之固定裝置的示意圖。請參考圖i及圖2， 固定裝置1〇〇包括一固定桿110以及—限位座13〇，1中 _ 限位座130具有一座孔132與一限位擋緣134。固定桿\1〇 的一端配置於座孔132且抵靠於限位擋緣134。此外，雙 開口琦式濾忍10套設於固定桿110。換言之，固定捍j 1〇 ，，於雙開口筒式濾芯10的中心軸部14。然而，由於固 疋桿丄1G的上端呈開放狀態，因此液體容^在過濾前即流 ^固定桿110而積垢。另外，固定桿110的橫戴面呈三$ 形，造成液體中的雜質容易積存在内角處且不利於清^污 垢。再者，限位座13〇的結構具有多處轉折與縫隙， 容易殘留污垢且不易清潔。 7 主切綜上所述，為了維持液體的過濾品質，因此必須定期 二S固疋裴置並更換濾芯。然而，習知之固定桿的結構卻 隹 合易增加保養之步驟與頻率。因此，在流體濟 護成本增加的同時，整體的製造成本亦同步提^'Γ備的本 【新型内容】 本創作提供一種流體過濾設備及其固定裝置，其結構 可避免殘留污垢且易於清洗。 為達上述或其他目的，本創作提出一種固定裝置，配 置於—流體過濾設備内’適於固定一雙開口筒式渡芯。固 6 M354453 定裝置包括一固定管（fastening pipe)以及—覆芸元件 (cover dement)。固定管穿設於雙開口筒式濾=有 一中空部。固定管包括一本體、一第一端部以第二端 部。本體具有至少-通孔（vent)，其中通孔沿轴向延^ 且連通中空部。通孔呈橢圓形（elliptic)或長條形。第一 端部具第—外螺紋以及―第—開口，其中中^部轴向 沿伸至第一開口。第二端部具有—第二外螺紋以及一第二 ，口二其中中空部軸向沿伸至第二開口。覆蓋元件鎖固於 第二端部。覆蓋元件包括一固定部（fixing portion)以及 一 /瓜體止檔凸緣（fluid-repellent flange )。固定部具有一 第二内螺紋’其中第二外螺紋耦接至第二内螺紋。流體止 擋凸緣配置於固定部之上且沿徑向凸伸至雙開口筒式濾芯 的外週緣。 在本創作之一實施例中，上述固定管的材質為一金 屬’例如為不銹鋼。 在本創作之一實施例中，上述覆蓋元件的材質為塑膠。 一在本創作之一實施例中，上述流體止檔凸緣的外徑相 s於雙開口筒式濾芯的外徑，而固定部的外徑相當於雙開 口筒式濾芯的内徑。 在本創作之一實施例中，更包括一密封環，配置於流 體止擋凸緣的下緣。 在本創作之一實施例中，密封環的下緣為一尖端，在 朝雙開口筒式濾心的端面插入。本創作更提出一種流體過 濾設備，適於固定—雙開口筒式濾芯。流體過濾設備包括 M354453 一槽體、一固定座、至少一固定管以及至少一覆蓋元件。 槽體具有一容置槽。固定座配置於容置槽内且具有至少一 第一内螺紋。固定管鎖固於固定座且具有一中空部，其中 雙開口筒式濾芯套設於固定管。固定管包括一本體、一第 一端部以及一第二端部。本體具有至少一通孔，其中通孔 沿轴向延伸且連通中空部。通孔呈橢圓形或長條形。第一 端部具有一第一外螺紋以及一第一開口，其中第一外螺紋 ' 耦接至第一内螺紋，中空部轴向沿伸至第一開口。第二端 部具有一第二外螺紋以及一第二開口，其中中空部軸向沿 伸至第二開口。覆蓋元件鎖固於第二端部。覆蓋元件包括 —固定部以及一流體止擋凸緣。固定部具有一第二内螺 紋，其中第二外螺紋耦接至第二内螺紋。流體止擋凸緣配 置於固定部之上且沿徑向凸伸至雙開口筒式濾芯的外週 緣。 在本創作之一實施例中’上述槽體、固定座以及固定 管的材質為一金屬，例如為不錄鋼。 • 在本創作之一實施例中，上述覆蓋元件的材質為塑膠。 在本創作之一實施例中，上述流體止擋凸緣的外徑相當於 -雙開口筒式濾芯的外徑，而固定部的外徑相當於雙開口筒 式濾芯的内徑。 在本創作之一實施例中，更包括一密封環，配置於流 體止擋凸緣的下緣。 在本創作之一實施例中，密封環的下緣為一尖端，並 朝雙開口筒式濾心的端面插入。本創作是採用一種流體過 M354453 滤設備及翻定裝置，藉由其斷面形狀為圓形之固定管， 可避免過濾液體中的雜質殘留在轉角處不易清潔。此外， ，覆蓋j與岐管緊㈣配合，因此液體不易在過濾 刖肌入固“内產生雜質’進而提升過濾器遽淨之效能。 *為讓本創作之上述和其他目的、特徵和優點能更明顯 易懂’下文特舉較佳實施例’並配合所關式，作詳細說 明如下。 【實施方式】 圖3為本創作一實施例之流體過濾設備之示意圖。圖 4為圖3之流體過濾設備的固定裝置的分解示意圖。請參 考圖3的流體過濾設備20 ’其包括—槽體2〇〇、一固定座 210、多個固定管310 (僅示意性繪示二個）以及多個覆蓋 元件320 (僅示意性繪示二個）。槽體2〇〇例如以不銹鋼 的上蓋以及筒身密封而形成一容置槽2〇2，可使流體通過 在容置槽202内部的雙開口筒式濾芯ι〇。雙開口筒式濾芯 1 〇具有微小孔隙及吸附能力的多孔材料，以過滤流體中的 雜質，例如粉塵、溶解性無機物、有機化合物或金屬離子 等。如圖1所示’雙開口筒式濾芯10具有兩個端面12， 且雙開口筒式濾芯10的一中心軸部14呈中空。 請同時參考圖3與圖4’固定座21〇配置於容置槽2〇〇 内，且固定座210具有多個第一内螺紋212(僅示意性繪示 一個）。在本實施例中’此固定座21〇形狀例如為圓盤狀。 此固定座210之第一内螺紋212耦接至固定管310之第一 M354453 外螺紋314a’固定管31〇鎖固於固定座21〇且具有一中空 :、中雙開口筒式渡怎10套設於固定管310。換言 固疋官310插設於雙開口筒式濾芯10的中心軸部14, 藉^為雙開口筒式遽怒10的支樓轴。藉由上述之配置， 固疋官310即可有效的鎖固在固定座21〇上而不會沿著徑 向移動。在本實施例中，固定管310及覆蓋元件320的總 為個然而’在其他實施例中，本創作不限制固定管 310及覆盍元件320的總數。此外，固定座21〇的材質為 金屬，例如是不銹鋼。 晴參考圖4為固定裝置之分解示意圖。固定裝置300 括口疋I 31〇以及一覆蓋元件320。固定管wo包括 312、~第—端部314以及一第二端部316。本體 /、有至少一通孔312a，其中通孔312a沿著固定管31〇 的=延伸且連通中空部310a。通孔312a呈橢圓形。在 ^【施=中’雖然通孔312a以橢圓形的型態表示，但通孔 a亦可為沿著軸向延伸的長條狀開 口。由於通孔312a ^孔壁為完整的圓弧形，沒有容易殘留污垢的死角或轉 角，因而容易清洗。 固疋官310的第一端部314具有一第一外螺紋314a 禾一開口 314b，其中空部310a軸向沿伸至第一開 :314b。第二端部316具有一第二外嫘紋31知以及一第 —開口 316b，其中中空部31〇a軸向沿伸至第二開口 316b。 由上述可知，此固定管310為一圓柱狀之中空體。覆蓋元 件320鎖固於第二端部316。在本實施例中，由於固定管 10 M354453 310為圓形斷面之中空體，管 清洗。此外，其固定管310的材質内較全不易殘留汙垢而難於 圖5為圖4 $ Μ 1 為屬，例如是不錄鋼。 覆皿兀件之U剖示圖。社同日车失老FI 4 與圖5，覆蓋元件32〇包括 =μ门日圖4 凸㈣4。固定部322具有—第=± ^及一流以擋 内螺紋322a與固定管310的第f、= 322a ’其中弟二 it# 370 弟—外螺故316a耦接。覆蓋 j 320的^體止擋凸緣324的外徑 式濾芯10的外經D2，而固定部 相田於又開同 開口筒式濾芯U)的内徑D4，以避』外徑D3相當於雙 流體止擋⑽似的夕㈣間隙產生。也由於 因而覆蓋元件320=4=部 一 4Ξ:考Γ圖4與圖5,固定褒置可更包括 ^ 330，例如為具有防水特性的橡膠墊圈，且密封 二凸為一尖端330a。密封環330配置於流體 緣324a，且插人相對應的雙開口筒式濾 面12。在本實施例中，㈣環別與流體止 “:=ί —體成型設計而更緊密的結合，並可減少組 衣夺件的數量而降低製造成本。 机體止擒凸緣324沿徑向凸伸至雙開口筒式渡芯ι〇 妗週緣。因此，當液體進入流體過濾設備20後，流體止 富凸^ 324的下緣324a透過密封環330的尖端330a朝雙 ，口，式濾芯10的一端面丨2插入，使流體止擋凸緣324、 山=環330、雙開口筒式濾芯1〇三者間沒有間隙存在，亦 即流體止擋凸緣324因密封環33〇的下緣緊抵於雙開口筒 11M354453 VIII. New description: [New technical field] The present invention relates to a fluid filtration equipment and its fastening device, and in particular to a fixed double-opening cartridge (d 〇Uble-〇pen-end filter cartridge) and its fixing device. [Prior Art] Filtration operations are widely used in various fields, particularly for separating solid particles in a liquid or for separating dust in a gas. General filtration refers to impurities such as dust, dissolved inorganic substances, residual chlorine, organic compounds, metal ions, etc., which are suspended from the fluid towel. For liquid quality requirements, 'fluid transition equipment is often used to filter out liquid impurities. The interior of the fluid filtration device typically has a plurality of filters, such as double open cartridge cores, for the purpose of purifying the liquid. The principle of transition is to allow the fluid to pass through the double-open σ cartridge filter and the retained money remains on the double-opening cartridge. The material of the double-opening type is considered to be a porous material having a small (10) and suction force, such as diatomaceous fossil, activated carbon, and ionic resin. Specifically, the fluid filtering device includes a receiving groove and a fixing device. Fix the fixed double-opening cartridge filter to avoid the double-opening tubular core along the (four) and ___ turn detachable _ set device. When the cleanability is corrected, the new double-opening cartridge is replaced by a new double-opening cartridge to maintain purification performance. M354453 Figure 1 is a schematic view of a conventional double open cartridge filter. Referring to Figure i, the double-opening cartridge 10 has two end surfaces 12, and a central shaft portion 14 of the double-open cartridge 10 is hollow. 2 is a schematic view of a conventional fixing device. Referring to FIG. 1 and FIG. 2 , the fixing device 1 〇〇 includes a fixing rod 110 and a limiting seat 13 , wherein the _ limiting seat 130 has a hole 132 and a limiting rim 134 . One end of the fixing rod \1〇 is disposed on the seat hole 132 and abuts against the limiting rib 134. In addition, a double-opening type of filter 10 is provided on the fixed rod 110. In other words, the 捍 j 1 〇 is fixed to the central shaft portion 14 of the double-open cartridge filter 10. However, since the upper end of the solid rod 丄 1G is in an open state, the liquid container is fixed to the rod 110 to be fouled before being filtered. In addition, the cross-face of the fixing rod 110 has a three-shape, which causes impurities in the liquid to easily accumulate at the inner corners and is disadvantageous for cleaning dirt. Furthermore, the structure of the limit seat 13〇 has multiple turns and gaps, which tend to leave dirt and is not easy to clean. 7 In summary, in order to maintain the filtration quality of the liquid, it is necessary to periodically install and replace the filter element. However, the structure of the conventional fixed rod is easy to increase the steps and frequency of maintenance. Therefore, while the cost of fluid protection increases, the overall manufacturing cost is also simultaneously improved. [New content] The present invention provides a fluid filtering device and a fixing device thereof, which are constructed to avoid residual dirt and are easy to clean. To achieve the above or other objects, the present application proposes a fixture that is adapted to hold a pair of open barrel ferrites in a fluid filtration device. The solid 6 M354453 fixture consists of a fastening pipe and a cover dement. The fixed tube is threaded through the double open barrel filter = there is a hollow portion. The fixed tube includes a body, a first end and a second end. The body has at least a vent, wherein the through hole extends axially and communicates with the hollow. The through hole is elliptic or elongated. The first end has a first outer thread and a first opening, wherein the middle portion extends axially to the first opening. The second end has a second external thread and a second opening, wherein the hollow portion extends axially to the second opening. The cover member is locked to the second end. The cover member includes a fixing portion and a fluid-repellent flange. The fixing portion has a second internal thread 'where the second external thread is coupled to the second internal thread. The fluid stop flange is disposed above the fixed portion and projects radially to the outer periphery of the double-opening cartridge. In an embodiment of the present invention, the fixing tube is made of a metal such as stainless steel. In an embodiment of the present invention, the cover member is made of plastic. In one embodiment of the present invention, the outer diameter of the fluid stop flange is s to the outer diameter of the double-opening cartridge, and the outer diameter of the fixed portion corresponds to the inner diameter of the double-open cartridge. In one embodiment of the present invention, a seal ring is further included disposed on the lower edge of the fluid stop flange. In one embodiment of the present invention, the lower edge of the seal ring is a pointed end that is inserted into the end face of the double open cartridge filter. The present invention further proposes a fluid filtration device suitable for a fixed-double open cartridge filter. The fluid filtering device comprises a M354453 a tank, a fixing seat, at least one fixing tube and at least one covering element. The tank body has a receiving groove. The fixing seat is disposed in the receiving groove and has at least one first internal thread. The fixed pipe is fixed to the fixing base and has a hollow portion, wherein the double-opening tubular filter element is sleeved on the fixed pipe. The fixed tube includes a body, a first end portion and a second end portion. The body has at least one through hole, wherein the through hole extends in the axial direction and communicates with the hollow portion. The through holes are elliptical or elongated. The first end has a first external thread and a first opening, wherein the first external thread 'couples to the first internal thread, and the hollow portion extends axially to the first opening. The second end portion has a second external thread and a second opening, wherein the hollow portion extends axially to the second opening. The cover member is locked to the second end. The cover member includes a fixing portion and a fluid stop flange. The fixing portion has a second inner thread, wherein the second outer thread is coupled to the second inner thread. The fluid stop flange is disposed over the fixed portion and projects radially to the outer periphery of the double-opening cartridge. In one embodiment of the present invention, the material of the tank body, the fixing seat and the fixed pipe is a metal, for example, no steel is recorded. • In one embodiment of the present invention, the cover member is made of plastic. In one embodiment of the present invention, the outer diameter of the fluid stop flange corresponds to the outer diameter of the double open cartridge filter, and the outer diameter of the fixed portion corresponds to the inner diameter of the double open cartridge filter. In one embodiment of the present invention, a seal ring is further included disposed on the lower edge of the fluid stop flange. In one embodiment of the present invention, the lower edge of the seal ring is a pointed end and is inserted into the end face of the double open cartridge filter. This creation uses a fluid through the M354453 filter device and a turning device. By means of a fixed tube with a circular cross-section, it is possible to prevent impurities in the filtered liquid from remaining at the corners and being difficult to clean. In addition, the covering j is tightly matched with the fistula tube (4), so the liquid is not easy to filter the diaphragm into the solid to produce impurities, thereby improving the performance of the filter. * To make the above and other purposes, features and advantages of the present creation The following is a detailed description of the preferred embodiment of the present invention, and the following is a detailed description of the fluid filter apparatus according to an embodiment of the present invention. FIG. Schematic diagram of the fixing device of the filtering device. Please refer to the fluid filtering device 20' of FIG. 3, which includes a tank body 2, a fixing base 210, a plurality of fixing tubes 310 (only two are schematically shown) and a plurality of Covering element 320 (only two are shown schematically). The tank body 2 is sealed, for example, with a stainless steel upper cover and a barrel to form a receiving groove 2〇2, which allows fluid to pass through the double opening inside the receiving groove 202. Cartridge filter 〇. Double open cartridge filter 1 多孔 A porous material with tiny pores and adsorption capacity to filter impurities in the fluid, such as dust, dissolved inorganic substances, organic compounds or metal ions. The double-opening cartridge 10 has two end faces 12, and a central shaft portion 14 of the double-opening cartridge 10 is hollow. Please refer to FIG. 3 and FIG. 4 'the fixing seat 21 〇 is disposed in the accommodating groove 2 〇 The inside of the holder 210 has a plurality of first internal threads 212 (only one is schematically shown). In this embodiment, the shape of the holder 21 is, for example, a disk shape. The threaded portion 212 is coupled to the first M354453 of the fixed tube 310. The external thread 314a' of the fixed tube 31 is fixed to the fixed seat 21〇 and has a hollow: and the middle double-opening tube is disposed on the fixed tube 310. The eunuch 310 is inserted into the central shaft portion 14 of the double-opening cartridge 10, and is a branch shaft of the double-opening cylinder anger 10. With the above configuration, the solid squad 310 can be effectively locked in The fixing base 21 is not moved in the radial direction. In the present embodiment, the fixed tube 310 and the covering member 320 are always one. However, in other embodiments, the present invention does not limit the fixing tube 310 and the covering element. The total number of 320. In addition, the material of the fixing seat 21〇 is metal, for example, stainless steel. The fixing device 300 includes a port 〇I 31 〇 and a covering member 320. The fixing tube wo includes 312, a first end portion 314 and a second end portion 316. The body / has at least one through hole 312a, The through hole 312a extends along the fixed tube 31〇 and communicates with the hollow portion 310a. The through hole 312a has an elliptical shape. Although the through hole 312a is represented by an elliptical shape, the through hole a is also It may be an elongated opening extending in the axial direction. Since the through hole 312a has a complete circular arc shape, there is no dead angle or corner which easily leaves dirt, and thus it is easy to clean. The first end portion 314 of the solid 310 There is a first external thread 314a and an opening 314b, wherein the hollow portion 310a extends axially to the first opening: 314b. The second end portion 316 has a second outer rim 31 and a first opening 316b, wherein the hollow portion 31A extends axially to the second opening 316b. As can be seen from the above, the fixed tube 310 is a cylindrical hollow body. The cover member 320 is locked to the second end 316. In the present embodiment, since the fixed pipe 10 M354453 310 is a hollow body having a circular cross section, the pipe is cleaned. In addition, the material of the fixed pipe 310 is relatively easy to retain dirt, and it is difficult to see that FIG. 5 is a genus of FIG. 4, for example, no steel is recorded. U-section of the dishware. The same day car with the old FI 4 and Figure 5, covering the component 32〇 includes =μ gate day 4 convex (four) 4. The fixing portion 322 has - the first = ± ^ and the first-class internal thread 322a is coupled to the fth, = 322a' of the fixed tube 310, and the other is 316a. Covering the outer diameter D2 of the outer diameter filter element 10 of the body stop flange 324 of the j 320, and the inner diameter D4 of the fixed portion of the open-type cartridge filter U) is opened to avoid the outer diameter D3 is equivalent to the double The fluid stop (10) is similar to the eve (four) gap. Also, since the covering member 320 = 4 = portion 4: 4, the fixing device may further include ^ 330, for example, a rubber gasket having a waterproof property, and the sealing member is convexly formed as a tip end 330a. The seal ring 330 is disposed on the fluid rim 324a and is inserted into the corresponding double-open tubular filter surface 12. In the present embodiment, (4) the ring and the fluid stop ":= ί - body forming design and tighter combination, and can reduce the number of components and reduce the manufacturing cost. The body stop flange 324 in the radial direction The protrusion extends to the circumference of the double-opening cylinder core. Therefore, when the liquid enters the fluid filtering device 20, the lower edge 324a of the fluid retaining projection 324 passes through the tip end 330a of the sealing ring 330 toward the double, port, filter element 10 One end face 插入 2 is inserted so that there is no gap between the fluid stop flange 324, the mountain=ring 330, and the double-opening cartridge filter 1 , that is, the fluid stop flange 324 is due to the lower edge of the seal ring 33 〇 Close to the double open cylinder 11
M354453 式遽怒1G而可防止液體未流轉、芯1G而直接流入固定管 3K)内。藉由密封環330緊密的插入雙開口筒式遽芯1〇 内，使過濾空間可達到完全的密封。 奸由於固定部322之第二内螺紋322a減至固定管31〇 ^第-外，紋316a，使其覆蓋元件32()緊密的鎖固於固定 官310之第二端部316，進而避免未過渡液體由空隙流入， 而使污垢積存在固”31G内。在本實 320的材質為塑膠。 復血兀仵 本創作之流體過濾設備的固定襄置，固定 吕可緊被且精準的配合在固定座上，使雙 爾清洗，進而節省維修成本。此外，覆蓋Si固 1 :^合另:此:者間不會有空隙，以避免產生積存汙 后的問遞’另外’由於固定管之圓形斷 ，面為更佳之結構，因此汗垢不易附著管璧内 >糸〇 雖然本創作已以較佳實施例揭露如上，然其並非用以 限定本創作，任何熟習此技藝者，在不脫離本創作之精 =範圍内，當可作些許之更動與潤飾，因此本創.作之=護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1為習知之雙開口筒式濾芯的示意圖。 圖2為習知之固定裝置的示意圖。 圖3為本創作一實施例之流體過濾設備之示意圖 12 M354453 圖4為本創作一實施例之固定裝置之分解示意圖。 圖5為圖4之覆蓋元件之I-Ι剖示圖。 【主要元件符號說明】 10 :雙開口筒式濾芯 12 :端面 100、300 :固定裝置 130 :限位座 134 :限位擋緣 202 :容置槽 212 :第一内螺紋 310a :中空部 312a :通孔 314a :第一外螺紋 316 :第二端部 316b ··第二開口 322 :固定部 324 :流體止擋凸緣 330 :密封環 D卜D2、D3 :夕卜徑 2 0 :流體過遽設備 14 :中心轴部 110 :固定桿 132 :座孔 200 :槽體 210 :固定座 310 :固定管 312 :本體 314 :第一端部 314b :第一開口 316a :第二外螺紋 320 :覆蓋元件 322a :第二内螺紋 324a :流體止擋凸緣下緣 330a :尖端 D4 :内徑 13The M354453 is irritated by 1G to prevent the liquid from flowing, and the core 1G directly flows into the fixed tube 3K). By tightly inserting the seal ring 330 into the double-opening cartridge core 1〇, the filter space can be completely sealed. Since the second internal thread 322a of the fixing portion 322 is reduced to the fixed tube 31, the pattern 316a is such that the covering member 32() is tightly locked to the second end portion 316 of the fixing member 310, thereby avoiding The transition liquid flows in from the void, and the dirt accumulates in the solid "31G." The material of the real 320 is plastic. The fixed device of the fluid filtering device created by the complex blood sputum is fixed and precisely matched. On the fixed seat, the double cleaning is carried out, thereby saving maintenance costs. In addition, the cover Si solid is 1 : ^ and the other: this: there will be no gap between the people to avoid the accumulation of pollution after the request of 'other' due to the fixed tube The circular shape is a better structure, so the sweat is less likely to adhere to the inside of the tube. 糸〇 Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the creation, and anyone skilled in the art is Without departing from the scope of this creation, it is possible to make some changes and refinements. Therefore, the scope of the protection is determined by the scope of the patent application attached. [Simplified illustration] Figure 1 Schematic diagram of a conventional double-opening cartridge 2 is a schematic view of a conventional fixing device. Fig. 3 is a schematic view of a fluid filtering device according to an embodiment of the present invention. M354453 Fig. 4 is an exploded perspective view of the fixing device of the embodiment. Fig. 5 is a cover member of Fig. 4. I-Ι Ι 。 。 【 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Thread 310a: hollow portion 312a: through hole 314a: first outer thread 316: second end portion 316b · second opening 322: fixing portion 324: fluid stop flange 330: sealing ring D Bu D2, D3: Diameter 2 0 : fluid passing device 14 : central shaft portion 110 : fixing rod 132 : seat hole 200 : tank 210 : fixing seat 310 : fixing tube 312 : body 314 : first end portion 314 b : first opening 316 a : Two external threads 320: cover element 322a: second internal thread 324a: fluid stop flange lower edge 330a: tip D4: inner diameter 13