M325290 八、新型說明： 【新型所屬之技術領域】 本創作是有關一種呼氣結構，尤指一種具單向透氣功 能可供應用於保存咖啡豆之呼氣結構。 【先前技術】 以咖啡豆而言，自從烘焙完成之後就會開始逐漸喪失 它的鮮度，且隨著與空氣接觸的時間不斷增加，易導致變 質而風味變差，然而存放咖啡豆的容器相當重要，且放置 的地點必須是乾燥、陰涼、陽光照射不到的地方，避免受 潮。有鑑於此，於咖啡豆的包裝袋上設有讓氣只出不進的 呼氣裝置，更能讓消費者於包裝袋開封後封緊袋口而將袋 内多餘的空氣擠出，使咖啡豆能保持原有之鮮度。 職是，有一種透氣袋，如第4圖所示，為一習用咖啡 袋透氣結構9，其主要包括有一座體9 1、一容置於座體 中的槽體9 2、以及一被卡制於槽體中的瓣膜9 3。其中 ，該座體9 1之端緣用以附於咖啡袋9 5之内面，咖啡袋 9 5並提供數透氣孔9 5 1供透氣，且於該座體9 1與該 槽體9 2中央位置，均設有數透氣孔9 1 1、9 2 1，並 於座體9 1與槽體9 2間設有一濾片9 4，如此設為整組 而貼附於咖啡袋内面，以供單向透氣於咖啡袋。 另外，如第5圖所示，表示另一種習知透氣結構8， 主要有一可供貼設於咖啡袋9 5内面具有透氣孔9 5 1之 座體8 1、及一可卡固於該座體内之塞體8 2，於該座體 8 1與該塞體82内設置有一瓣膜83，瓣膜83藉由該 M325290 塞體8 2壓抵於該座體8 1内，以使瓣膜8 3壓合於座體 8 1之透氣8 1 1孔，供發揮單向透氣之功效。 然而，以習用之透氣結構而言，其雖然能阻隔咖啡豆 與空氣之接觸，但其所組成之元件確甚多，其中每一元件 之生產與組裝均為一項成本，且於組立時物料管理以及工 程繁複，實有改善製程、降低成本之必要。 【新型内容】 本創作之首要目的，在於解決上述的問題而揭示一種 呼氣結構改良，其係藉由卡部用以卡合片體，可阻隔袋外 之空氣進入袋内，且於袋内之空氣，可經擠壓而產排出袋 外，此設為整組之結構，僅利用極少之元件互相結合，可 確實降低組立製程時間及其繁鎖的物料管理，達成簡少成 本之目的。 為達前述之目的，本創作係可單向導通氣體，包括有 一座體，具一供貼合於袋子内面之貼合面、一自該貼合面 朝向座體中央凹設之透氣空間、及一環設於該透氣空間内 之限制環，透氣空間於限制環所圈設之壁面具有至少一透 氣孔，於該限制環内緣具有至少二向中心延伸之卡部，卡 部並與該壁面相隔一距離；及 一概呈圓形之片體，片體可設於該卡部與壁面之間， 供壓抵於透氣孔。 本創作之上述及其他目的與優點，不難從下述所選用 實施例之詳細說明與附圖中，獲得深入了解；當然，本創 M325290 作在某些另件上，或另件之安排上容許有所不同，但所選 用之實施例，則於本說明書中，予以詳細闡述，且於附圖 中展示其構造。 【實施方式】 • 本案較佳之實施例，請參閱第1圖至第3圖，圖中揭 •示者均為本創作所選用之較佳實施例，在此僅供說明之用 , ，於專利申請上並不拘限於此種結構。 本實施例提供一種呼氣結構改良，其可單向導通氣 體，主要用於咖啡袋包括有： 一座體1，其概呈圓形，於一面具一供貼合於袋子内 面之貼合面1 1，自該貼合面朝向座體中央凹設有一透氣 空間1 2，供導通排氣，於該透氣空間1 2内以中央位置 為中心環設有一限制環1 3，透氣空間1 2於限制環1 3 所圈設之壁面1 2 1具有至少一透氣孔1 4，本實施例以 四個透氣孔表示，於該限制環1 3内緣徑向具有至少二向 φ 座體中心延伸之卡部1 5，本實施以四個等距之卡部為 ， 例，而卡部1 5並與該壁面1 2 1相隔一距離。 一概呈圓形之片體2，片體2可設於該卡部1 5與壁 面1 2 1之間，供壓抵於透氣孔1 4，其中，本實施例所 述之片體2較佳者係以橡膠材質製成，以提供具有微變形 能力且具較佳貼合效果之片體。 請參閱第2至3圖所示，係表示本創作應用於咖啡袋 於常態下與壓縮袋子排氣時之剖面示意圖，其中，當該呼 氣結構利用該貼合面1 1結合於咖啡袋3内面後，係藉由 M325290 各該卡部1 5卡止該片體2使之擋止各於透氣孔1 4，俾 防止袋子外之空氣進入袋子内。 二來，當取用完内容物於封口後，先是於座體1透氣 空間相對之袋子上，設有數孔洞3 1以便於排氣，再將袋 子内之氣體擠壓至呼氣結構，多餘之空氣便經由座體1之 透氣孔1 4而推擠前述片體2以使其些微向外突起，空氣 再經等距設置各卡部1 5的間隔距離排出。 綜上述，以藉由各卡部用以卡合片體，可阻隔袋外之 空氣進入袋内，且於袋内之空氣，可經擠壓而產排出袋外 ，此設為整組之結構，僅利用極少之元件（二元件）互相結 合，可確實降低組立製程時間及其繁鎖的物料管理，達成 簡少成本之目的。 如上所揭示之實施例是用以說明本創作，而非用以拘 限本創作，故舉凡數值之變更或等效元件之替換等仍應隸 屬本創作之範轉，且由以上詳細說明，可使熟知本項技藝 者得以明暸本創作確實可達成前述目的，均已符合專利法 之規定，爰提出專利申請。 【圖式簡單說明】 第1圖係本創作之立體分解圖 第2圖係本創作之使用狀態示意圖 第3圖係本創作使用狀態之排氣示意圖 第4圖係習用呼氣結構改良之立體分解圖 第5圖係習用呼氣結構改良之立體分解圖 【主要元件符號說明】 M325290 (習用部分） 透氣結構9、8 座體91、81 透氣孔911、9 2 1 、8 1 1、8 2 1 槽體9 2 塞體8 2 瓣膜9 3、8 3 濾片9 4 袋子9 5 孔洞9 5 1 (本創作部分） 座體1 貼合面1 1 透氣空間12 壁面1 2 1 限制環1 3 透氣孔1 4 卡部1 5 片體2 袋子3 孔洞3 1M325290 VIII. New Description: [New Technology Field] This creation is about an exhalation structure, especially a breathable structure with a one-way ventilation function for storing coffee beans. [Prior Art] In the case of coffee beans, since the baking is completed, it gradually loses its freshness, and as the time of contact with the air increases, it tends to deteriorate and the flavor deteriorates. However, the container for storing coffee beans is very important. And the place must be placed in a dry, cool place that is not exposed to sunlight to avoid moisture. In view of this, there is an exhalation device on the packaging bag of the coffee bean, which allows the consumer to seal the bag opening after the bag is opened, and the excess air in the bag is squeezed out to make the coffee. Beans can maintain their original freshness. The utility model has a ventilating bag, as shown in Fig. 4, which is a conventional coffee bag venting structure 9, which mainly comprises a body 911, a tank body 9 accommodated in the seat body, and a card. A valve 9 3 made in the trough. Wherein, the end edge of the seat body 9 1 is attached to the inner surface of the coffee bag 915, and the coffee bag 9.5 is provided with a plurality of vent holes 915 for ventilation, and the center of the seat body 9 1 and the groove body 9 2 The position is provided with a plurality of venting holes 9 1 1 and 9 2 1 , and a filter piece 94 is disposed between the seat body 9 1 and the groove body 9 2 , so as to be set as a whole group and attached to the inner surface of the coffee bag for the single sheet Breathable in a coffee bag. In addition, as shown in FIG. 5, another conventional gas permeable structure 8 is shown, which has a seat body 8 1 which is affixed to the inner surface of the coffee bag 905 and has a vent hole 915, and a card can be fastened to the seat. The valve body 82 is disposed in the body 8 1 and the plug body 82. The valve 83 is pressed into the seat body 8 1 by the M325290 plug body 8 2 to make the valve 8 3 The air-permeable 81 hole is pressed into the seat body 8 1 to provide a one-way ventilation effect. However, in terms of the conventional gas permeable structure, although it can block the contact between coffee beans and air, it has many components, and the production and assembly of each component is a cost, and the materials are assembled. Management and engineering complexity, it is necessary to improve the process and reduce costs. [New content] The primary purpose of this creation is to solve the above problems and to reveal an exhalation structure improvement, which is used to engage the sheet body by the card portion, and the air outside the bag can be blocked from entering the bag and being inside the bag. The air can be squeezed out and discharged out of the bag. This is a whole set of structures, and only a few components are combined with each other, which can really reduce the assembly process time and the complicated material management, and achieve the purpose of reducing the cost. For the purpose of the foregoing, the creation system can be a single-pass gas, including a body having a fitting surface for fitting to the inner surface of the bag, a venting space recessed from the fitting surface toward the center of the seat body, and a ring that is disposed in the venting space, the venting space has at least one venting hole in the wall surface of the limiting ring, and has a card portion extending at least in the center of the limiting ring at the inner edge of the limiting ring, and the card portion is separated from the wall surface a distance; and a substantially circular piece, the body may be disposed between the card portion and the wall surface for pressing against the venting hole. The above and other objects and advantages of the present invention are not difficult to understand from the detailed description of the selected embodiments below and the accompanying drawings; of course, the original M325290 is made on some parts or on the arrangement of parts. The tolerances are different, but the selected embodiments are explained in detail in the present specification, and the construction thereof is shown in the drawings. [Embodiment] • For the preferred embodiment of the present invention, please refer to FIG. 1 to FIG. 3, which are the preferred embodiments selected for the present application, and are for illustrative purposes only, and are patented. The application is not limited to this structure. The embodiment provides an improved expiratory structure, which can be used for a single-pass gas, and is mainly used for a coffee bag, comprising: a body 1 which is substantially circular and is attached to a fitting surface of the inner surface of the bag. 1. A venting space 12 is provided from the abutting surface toward the central portion of the seat body for conducting and venting. In the venting space 12, a limiting ring 13 is disposed around the central position, and the venting space is limited. The wall surface 1 2 1 of the ring 13 has at least one venting hole 14 . The embodiment is represented by four venting holes, and the card has a card extending at least in the radial direction of the inner edge of the limiting ring 13 at least in the direction of the center of the φ seat. In the present embodiment, four equidistant card portions are used as an example, and the card portion 15 is spaced apart from the wall surface 1 21 by a distance. The sheet body 2 is a circular body 2, and the sheet body 2 is disposed between the card portion 15 and the wall surface 1 2 1 for pressing against the vent hole 14 , wherein the sheet body 2 described in the embodiment is preferably It is made of rubber to provide a sheet with micro-deformability and a better fit. Referring to Figures 2 to 3, the present invention is applied to a cross-sectional view of the coffee bag in a normal state and when the compressed bag is vented, wherein the exhalation structure is bonded to the coffee bag 3 by the bonding surface 1 1 After the inner surface, the card portion 15 of the M325290 locks the sheet body 2 to block the vent holes 14 to prevent the air outside the bag from entering the bag. Secondly, after the contents are taken out of the sealing, firstly on the bag with the air permeable space of the seat body 1, a plurality of holes 31 are provided to facilitate the exhausting, and then the gas in the bag is squeezed to the exhalation structure, and the excess is The air is pushed through the vent holes 14 of the seat body 1 to push the sheet body 2 to slightly protrude outward, and the air is discharged at a distance from each of the card portions 15 equidistantly. In summary, by means of the card portions for engaging the sheet body, the air outside the bag can be blocked from entering the bag, and the air in the bag can be squeezed out to be discharged out of the bag, which is set as the whole group structure. Only the use of very few components (two components) combined with each other can really reduce the assembly process time and its complicated material management, and achieve the goal of reducing costs. The embodiments disclosed above are intended to illustrate the present invention, and are not intended to limit the creation of the present invention. Therefore, any changes in numerical values or replacement of equivalent elements are still subject to the scope of the present invention, and are described in detail above. It is clear to those skilled in the art that the creation can indeed achieve the aforementioned objectives, and all of them have met the requirements of the Patent Law and filed a patent application. [Simplified illustration of the drawing] Fig. 1 is a three-dimensional exploded view of the creation. Fig. 2 is a schematic diagram showing the state of use of the creation. Fig. 3 is a schematic diagram of the exhaust of the present use state. Fig. 4 is a three-dimensional decomposition of the modified exhalation structure. Figure 5 is a three-dimensional exploded view of the modified exhalation structure [Description of the main components] M325290 (conventional part) Ventilation structure 9, 8 Seat 91, 81 Ventilation holes 911, 9 2 1 , 8 1 1 , 8 2 1 Tank 9 2 Plug body 8 2 Valve 9 3, 8 3 Filter 9 4 Bag 9 5 Hole 9 5 1 (This part) Seat 1 Fit surface 1 1 Ventilation space 12 Wall 1 2 1 Limit ring 1 3 Breathable Hole 1 4 card part 1 5 piece 2 bag 3 hole 3 1