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CN210149967U - Vacuum pump cover and canister for mounting to canister - Google Patents

Vacuum pump cover and canister for mounting to canister Download PDF

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Publication number
CN210149967U
CN210149967U CN201920930266.4U CN201920930266U CN210149967U CN 210149967 U CN210149967 U CN 210149967U CN 201920930266 U CN201920930266 U CN 201920930266U CN 210149967 U CN210149967 U CN 210149967U
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Prior art keywords
canister
vacuum pump
pump cover
cap
air hole
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Expired - Fee Related
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CN201920930266.4U
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Chinese (zh)
Inventor
D·蔡
J·蔡
M·蔡
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Liflhtronik Technology Inc
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Liflhtronik Technology Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/06—Special configurations; Closures simulating or provided with another item, e.g. puppet, animal, vehicle, building

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Closures For Containers (AREA)

Abstract

本实用新型涉及用于安装到罐的真空泵盖和罐。公开了能够适用于任何罐的真空泵盖。盖集成有罐的封闭系统，该封闭系统通过螺纹、推动或卡扣封闭件等实现。在泵压位于盖的顶部的按钮的情况下，操作柔韧的阀销以从罐移除少量空气，从而实现真空密封。密封在盖被移除时被释放。该简单的方案使用了较少的移动部件来实现该结果，因此是耐用且容易制造的。

Figure 201920930266

The utility model relates to a vacuum pump cover and a canister for mounting to a canister. A vacuum pump cover that can be adapted to any tank is disclosed. The lid integrates the closure system of the can, which is achieved by thread, push or snap closure, etc. With the button located on the top of the cap being pumped, the flexible valve pin is operated to remove a small amount of air from the canister, thereby achieving a vacuum seal. The seal is released when the cover is removed. This simple solution uses fewer moving parts to achieve this result and is therefore durable and easy to manufacture.

Figure 201920930266

Description

用于安装到罐的真空泵盖和罐Vacuum pump cover and canister for mounting to canister

技术领域technical field

本实用新型涉及便携的可真空密封容器的领域。The utility model relates to the field of portable vacuum sealable containers.

背景技术Background technique

对容纳有干货的瓶或罐进行真空密封以维持储存期限是有益的。因为真空密封需要从罐移除空气，所以许多市售真空密封方案需要安装到盖的单独的抽吸装置。其它装置包括随着时间而磨损和劣化的多个可移动部件。因此，期望提供不需要独立的真空密封装置的简单且便携的方案，并且还需要尽可能少的部件来完成期望的功能。It is beneficial to vacuum seal bottles or jars containing dry goods to maintain shelf life. Because vacuum sealing requires removal of air from the canister, many commercially available vacuum sealing solutions require a separate suction device mounted to the lid. Other devices include multiple movable parts that wear and degrade over time. Therefore, it would be desirable to provide a simple and portable solution that does not require a separate vacuum seal and also requires as few components as possible to perform the desired function.

实用新型内容Utility model content

本实用新型的目的是提供能够适用于各种容器的简单且便携的真空泵盖。本实用新型包括盖组件，其能够在以轻质且简单的设计并入真空密封功能的情况下覆盖罐。盖组件包括：管状套筒，该管状套筒在其底端具有用于安装到罐的连接部件，并且该管状套筒在其顶端具有开口，该开口的直径小于套筒的直径，该开口形成用于能够按压的帽的插口和出口；筒状壳体，其装配在管状套筒内并且包括封闭的基部和开放的顶端，筒状壳体在其顶端接收能够按压的帽，该能够按压的帽在弹簧介于能够按压的帽与封闭的基部之间的情况下可移动地装配在筒状壳体内，从而构成活塞；气孔，其穿过筒状壳体的封闭的基部，气孔具有顶部开口和底部开口；以及柔韧的阀销，其可移动地位于气孔内并且包括颈部、凸状顶凸缘以及底凸缘，凸状顶凸缘的直径超过气孔的顶部开口，底凸缘的直径超过气孔的底部开口，由此阀销的颈部可移动地保持在气孔内。An object of the present invention is to provide a simple and portable vacuum pump cover that can be applied to various containers. The present invention includes a lid assembly capable of covering the canister while incorporating a vacuum sealing function in a lightweight and simple design. The cap assembly includes: a tubular sleeve having a connecting member at its bottom end for mounting to a canister, and having an opening at its top end, the opening having a diameter smaller than the diameter of the sleeve, the opening forming Socket and outlet for a depressible cap; a cylindrical housing that fits within a tubular sleeve and includes a closed base and an open top end, the cylindrical housing receiving a depressible cap at its top end, the depressible cap a cap movably fitted within the cylindrical housing with a spring interposed between the cap that can be pressed and the closed base, thus constituting the piston; the air hole, which passes through the closed base of the cylindrical housing, the air hole having an opening at the top and a bottom opening; and a flexible valve pin removably positioned within the air hole and comprising a neck, a convex top flange, and a bottom flange, the diameter of the convex top flange exceeding the top opening of the air hole, the diameter of the bottom flange The bottom opening of the air hole, whereby the neck of the valve pin is movably retained within the air hole.

本实用新型涉及一种用于安装到罐的真空泵盖，罐具有用于接收真空泵盖的部件，真空泵盖包括：The utility model relates to a vacuum pump cover for mounting to a tank, the tank has parts for receiving the vacuum pump cover, and the vacuum pump cover comprises:

管状套筒，其在底端具有互补的部件，用于将真空泵盖安装到罐的嘴部，并且管状套筒在顶端具有开口，开口的直径小于套筒的直径，开口形成插口以接收能够按压的帽；A tubular sleeve having complementary parts at the bottom end for mounting the vacuum pump cover to the mouth of the canister, and having an opening at the top end, the diameter of the opening being smaller than the diameter of the sleeve, the opening forming a socket to receive a press capable cap;

筒状壳体，其装配在管状套筒内并且包括封闭的基部和开放的顶端，并且筒状壳体在其顶端处接收能够按压的帽，在弹簧介于能够按压的帽与封闭的基部之间的情况下，能够按压的帽能够移动地装配在筒状壳体内，从而构成活塞；A cylindrical housing that fits within a tubular sleeve and includes a closed base and an open top end and receives a depressible cap at its top end with a spring interposed between the depressible cap and the closed base In the case of time, the cap that can be pressed can be movably assembled in the cylindrical housing, thereby constituting a piston;

气孔，其穿过筒状壳体的封闭的基部，气孔具有顶部开口和底部开口；以及an air hole passing through the closed base of the cylindrical housing, the air hole having a top opening and a bottom opening; and

柔韧的阀销，其包括颈部、凸状顶凸缘和底凸缘，其中凸状顶凸缘的直径超过气孔的顶部开口的直径，底凸缘的直径超过气孔的底部开口的直径，由此柔韧的阀销的颈部能够移动地保持在气孔内。A flexible valve pin comprising a neck, a convex top flange and a bottom flange, wherein the diameter of the convex top flange exceeds the diameter of the top opening of the air hole and the diameter of the bottom flange exceeds the diameter of the bottom opening of the air hole, by The neck of this flexible valve pin is movably retained within the air hole.

优选地，气孔容纳在从筒状壳体的基部突出并且从筒状壳体的边缘嵌入的筒状延伸部内。Preferably, the air hole is accommodated in a cylindrical extension that protrudes from the base of the cylindrical housing and is embedded from the edge of the cylindrical housing.

本实用新型还涉及一种罐，罐包括如上所述的真空泵盖，罐还包括覆盖筒状延伸部的帽，帽具有至少一个气孔。The utility model also relates to a canister, the canister comprises the above-mentioned vacuum pump cover, the canister further comprises a cap covering the cylindrical extension, and the cap has at least one air hole.

优选地，用于接收真空泵盖的部件是带螺纹的连接件。Preferably, the means for receiving the vacuum pump cover is a threaded connection.

本实用新型还涉及一种罐，罐包括如上所述的真空泵盖，用于接收真空泵盖的部件是带螺纹的连接件。The utility model also relates to a canister, the canister includes the vacuum pump cover as described above, and the component for receiving the vacuum pump cover is a threaded connector.

附图说明Description of drawings

图1是装置的侧视立体图。Figure 1 is a side perspective view of the device.

图2是装置的侧视截面图。Figure 2 is a side sectional view of the device.

图3是装置的立体分解图。Figure 3 is an exploded perspective view of the device.

图4是装置的立体分解图。Figure 4 is an exploded perspective view of the device.

具体实施方式Detailed ways

现在参照附图，在附图中相同的附图标记表示相同的元件，装置包括真空泵盖100，真空泵盖100在顶部具有能够按下的真空泵107。真空泵盖100可以安装到诸如罐200的各种容器。特别地，只要真空泵盖100与罐嘴部的直径相匹配并且具有相对于罐嘴部的互补安装部件(这里图示为具有螺纹109)，真空泵盖100就将适用于罐。Referring now to the drawings, in which like numerals refer to like elements, the apparatus includes a vacuum pump cover 100 having a vacuum pump 107 at the top that can be depressed. The vacuum pump cover 100 may be mounted to various containers such as the tank 200 . In particular, the vacuum pump cover 100 will be suitable for the canister as long as it matches the diameter of the canister and has complementary mounting features relative to the canister (shown here as having threads 109).

真空泵盖在图3和图4中以分解图示出并且在图2中以截面图示出。盖包括管状套筒105，管状套筒105具有用于封闭罐200的互补部件115。现在常用的封闭部件的一些示例包括螺纹覆盖件、旋开帽(twist-off caps)、塞、卡扣帽(snap-on caps)、保护环封闭件(bail closures)。各种机械机构(包括螺纹(图示的)、凸块和插塞)用于实现安装和封闭。如附图中所绘示的，罐200具有用于接收帽的螺纹109，因此管状套筒105的互补封闭部件包括带螺纹的连接件115。The vacuum pump cover is shown in exploded view in FIGS. 3 and 4 and in sectional view in FIG. 2 . The cap includes a tubular sleeve 105 with complementary means 115 for closing the canister 200 . Some examples of closure components in common use today include threaded covers, twist-off caps, plugs, snap-on caps, bail closures. Various mechanical mechanisms, including threads (shown), bosses, and plugs, are used to achieve installation and closure. As depicted in the figures, the canister 200 has threads 109 for receiving the cap, so the complementary closure component of the tubular sleeve 105 includes a threaded connection 115 .

管状套筒105保持能够按压的帽107和筒状壳体106，通过能够按压的帽107和筒状壳体106从瓶200移除空气。特别地，在优选实施方式中，管状套筒105具有与封闭件端相反的带凸缘的开口，形成用于能够按压的帽107的插口125和出口。能够按压的帽107在其基部具有凸缘117，使得能够按压的帽107在装配到插口125中时保持在从套筒突出的位置。换言之，带凸缘的开口125的直径比管状套筒105的直径小，使得能够按压的帽107表现为使用者能够按下的按钮。The tubular sleeve 105 holds a depressible cap 107 and a cylindrical housing 106 through which air is removed from the bottle 200 . In particular, in the preferred embodiment, the tubular sleeve 105 has a flanged opening opposite the closure end, forming a socket 125 and an outlet for the depressible cap 107 . The depressible cap 107 has a flange 117 at its base so that the depressible cap 107 remains in a position protruding from the sleeve when fitted into the socket 125 . In other words, the diameter of the flanged opening 125 is smaller than the diameter of the tubular sleeve 105 so that the depressable cap 107 behaves as a button that the user can depress.

能够按压的帽107覆盖筒状壳体106，筒状壳体106的基部除了开口111之外是实心的，阀销110穿过开口111横断(transect)基部。弹簧108介于帽107与筒状壳体106的基部之间，由此帽107在被按压时构成活塞，从而压缩弹簧。为了确保能够按压的帽107的作为活塞的功能，能够按压的帽107能够在其边缘117与筒状壳体106之间装配有例如垫片的气密密封件。The cap 107 that can be pressed covers the cylindrical housing 106, the base of which is solid except for the opening 111 through which the valve pin 110 transects the base. A spring 108 is interposed between the cap 107 and the base of the cylindrical housing 106, whereby the cap 107 constitutes a piston when pressed, thereby compressing the spring. In order to ensure the function of the depressible cap 107 as a piston, the depressible cap 107 can be fitted with a hermetic seal, such as a gasket, between its rim 117 and the cylindrical housing 106 .

阀销110包括凸状顶凸缘101、盘形底凸缘102和颈部103，由此阀销110通过被保持在气孔111内而横断壳体106的基部。阀销110的直径小于气孔111的直径，以便允许通过气孔的空气运动，并且阀销110优选地由柔韧材料(pliant material)构成，使得在能够按压的帽107被泵压(pump)时阀销110容易地在气孔内移动，使空气在壳体106中上下流动。柔韧材料的示例包括热塑性聚氨酯、硅树脂、橡胶等。The valve pin 110 includes a convex top flange 101 , a disc-shaped bottom flange 102 and a neck 103 , whereby the valve pin 110 traverses the base of the housing 106 by being retained within the air hole 111 . The diameter of the valve pin 110 is smaller than the diameter of the air hole 111 in order to allow air movement through the air hole, and the valve pin 110 is preferably constructed of a pliant material so that when the depressible cap 107 is pumped the valve pin 110 easily moves within the air holes, allowing air to flow up and down in the housing 106 . Examples of flexible materials include thermoplastic polyurethane, silicone, rubber, and the like.

凸状顶凸缘101和盘形底凸缘102的直径均超过气孔111的直径，使得即使在空气推抵阀销时，阀销的颈部103也保持留在气孔内。归因于顶凸缘101的凸状，当帽107被按压时，空气向下推动阀销110，使在气孔的基部处绕着颈部形成开口。当帽107回弹至其初始位置时，真空力向上拉回阀销110，使得空气通过绕着气孔111的基部形成的开口离开罐200。然后，底凸缘102置于气孔111的基部上方的位置以密封气孔。在能够按压的帽107的多次泵压之后，顶凸缘101将抵靠气孔111的顶部而开始平坦化。筒状壳体106内部的压力将保持弹簧108处于压缩状态，并且使用者将发现难以进一步按下帽107。因此，将创建真空密封。The diameter of both the convex top flange 101 and the disc bottom flange 102 exceeds the diameter of the air hole 111 so that the neck 103 of the valve pin remains within the air hole even when air is pushed against the valve pin. Due to the convex shape of the top flange 101 , when the cap 107 is pressed, the air pushes the valve pin 110 downward, creating an opening around the neck at the base of the air hole. When the cap 107 springs back to its original position, the vacuum force pulls the valve pin 110 back up, causing air to exit the canister 200 through the opening formed around the base of the air hole 111 . Then, the bottom flange 102 is placed in position above the base of the air hole 111 to seal the air hole. After multiple pumping of the depressible cap 107 , the top flange 101 will begin to flatten against the top of the air hole 111 . The pressure inside the cylindrical housing 106 will keep the spring 108 in compression and the user will find it difficult to depress the cap 107 further. Therefore, a vacuum seal will be created.

优选地，基帽104覆盖筒状壳体106的下侧，保护气孔111和阀销110的组件免受材料和损坏。为了允许空气流入筒状壳体106，基帽104包括肋123和气孔113。垫片121确保真空泵盖100与罐200之间的紧密密封。Preferably, base cap 104 covers the underside of cylindrical housing 106, protecting the assembly of air hole 111 and valve pin 110 from material and damage. To allow air to flow into the cylindrical housing 106 , the base cap 104 includes ribs 123 and air holes 113 . Gasket 121 ensures a tight seal between vacuum pump cover 100 and tank 200 .

泵不会创建足够高以防止手动地破坏真空密封的PSI。因此，用作释放真空密封的唯一结构(sole structure)是将套筒105从罐释放的释放机构。如果连接部件是带螺纹的(如图所示)，则逆时针地手动旋拧套筒105一度或两度将释放真空密封并打开罐。类似地，如果连接部件是卡扣封闭件，则通过手动拉开套筒105容易地释放真空。在破坏真空密封时，弹簧108将扩展至其初始位置，并且阀销110将返回至其初始形状。因此，不需要将额外的结构和部件集成到盖组件的真空功能中，进一步减少了磨损和破坏的潜在成因。此外，管状套筒105的控制罐的打开和关闭的功能意味着童锁(child proofing)功能能够被集成到管状套筒105中。例如，下推打开或挤压打开的功能能够被集成到带螺纹的管状套筒机构中。The pump will not create a PSI high enough to prevent manually breaking the vacuum seal. Therefore, the only structure used to release the vacuum seal is the release mechanism that releases the sleeve 105 from the canister. If the connecting member is threaded (as shown), manually turning the sleeve 105 one or two degrees counterclockwise will release the vacuum seal and open the canister. Similarly, if the connecting member is a snap closure, the vacuum is easily released by manually pulling the sleeve 105 apart. Upon breaking the vacuum seal, the spring 108 will expand to its original position and the valve pin 110 will return to its original shape. Therefore, there is no need to integrate additional structures and components into the vacuum function of the cover assembly, further reducing potential causes of wear and tear. Furthermore, the function of the tubular sleeve 105 to control the opening and closing of the canister means that a child proofing function can be integrated into the tubular sleeve 105 . For example, push-down or squeeze-to-open functionality can be integrated into a threaded tubular sleeve mechanism.

设计的整体简化确保了更有效率的生产和耐用的部件。移动的部件仅为泵107、弹簧108和阀销110，其均可以由单个材料构成。例如，弹簧可以由单个金属线圈构成，而泵可以由单件塑料构成，并且阀销可以由单件硅树脂、热塑性聚氨酯等构成。这些材料相对坚固并且抗磨损。阀销110通过由抽吸驱动的简单的上下运动来实现功能，从而产生最小的磨损和损耗。The overall simplification of the design ensures more efficient production and durable parts. The only moving parts are the pump 107, the spring 108 and the valve pin 110, which may all be constructed of a single material. For example, the spring may be constructed from a single metal coil, while the pump may be constructed from a single piece of plastic, and the valve pin may be constructed from a single piece of silicone, thermoplastic polyurethane, or the like. These materials are relatively strong and wear-resistant. The valve pin 110 functions by a simple up and down movement driven by suction, resulting in minimal wear and tear.

Claims (5)

1.一种用于安装到罐的真空泵盖，其特征在于，所述罐具有用于接收真空泵盖的部件，所述真空泵盖包括：1. A vacuum pump cover for mounting to a canister, wherein the canister has means for receiving a vacuum pump cover, the vacuum pump cover comprising: 管状套筒，其在底端具有互补的部件，用于将所述真空泵盖安装到所述罐的嘴部，并且所述管状套筒在顶端具有开口，所述开口的直径小于所述套筒的直径，所述开口形成插口以接收能够按压的帽；A tubular sleeve having complementary components at the bottom end for mounting the vacuum pump cover to the mouth of the canister, and having an opening at the top end, the opening having a smaller diameter than the sleeve diameter, the opening forms a socket to receive a cap that can be pressed; 筒状壳体，其装配在所述管状套筒内并且包括封闭的基部和开放的顶端，并且所述筒状壳体在其顶端处接收所述能够按压的帽，在弹簧介于所述能够按压的帽与所述封闭的基部之间的情况下，所述能够按压的帽能够移动地装配在所述筒状壳体内，从而构成活塞；A cylindrical housing that fits within the tubular sleeve and includes a closed base and an open top end and receives the depressible cap at its top end with a spring between the capable between the depressing cap and the closed base, the depressable cap is movably fitted within the cylindrical housing, thereby constituting a piston; 气孔，其穿过所述筒状壳体的所述封闭的基部，所述气孔具有顶部开口和底部开口；以及an air hole passing through the closed base of the cylindrical housing, the air hole having a top opening and a bottom opening; and 柔韧的阀销，其包括颈部、凸状顶凸缘和底凸缘，其中所述凸状顶凸缘的直径超过所述气孔的顶部开口的直径，所述底凸缘的直径超过所述气孔的底部开口的直径，由此所述柔韧的阀销的颈部能够移动地保持在所述气孔内。A flexible valve pin comprising a neck, a convex top flange and a bottom flange, wherein the diameter of the convex top flange exceeds the diameter of the top opening of the air hole and the diameter of the bottom flange exceeds the diameter of the The diameter of the bottom opening of the air hole, whereby the neck of the flexible valve pin is movably retained within the air hole. 2.根据权利要求1所述的真空泵盖，其特征在于，所述气孔容纳在从所述筒状壳体的基部突出并且从所述筒状壳体的边缘嵌入的筒状延伸部内。2 . The vacuum pump cover of claim 1 , wherein the air hole is accommodated in a cylindrical extension that protrudes from the base of the cylindrical housing and is embedded from the edge of the cylindrical housing. 3 . 3.一种罐，所述罐包括根据权利要求2所述的真空泵盖，其特征在于，所述罐还包括覆盖所述筒状延伸部的帽，所述帽具有至少一个气孔。3. A canister comprising the vacuum pump cover of claim 2, wherein the canister further comprises a cap covering the cylindrical extension, the cap having at least one air hole. 4.根据权利要求3所述的罐，其特征在于，用于接收所述真空泵盖的部件是带螺纹的连接件。4. The canister of claim 3, wherein the means for receiving the vacuum pump cover is a threaded connection. 5.一种罐，所述罐包括根据权利要求1所述的真空泵盖，其特征在于，用于接收所述真空泵盖的部件是带螺纹的连接件。5. A canister comprising the vacuum pump cover of claim 1, wherein the means for receiving the vacuum pump cover is a threaded connection.
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