Container cover and packaging container
By designing gas and contents control valves in the container lid, an airtight isolation between the outer shell and the flexible inner liner is achieved, solving the problem of contents changes caused by air circulation in the packaging container and keeping the contents fresh.
Patent Information
- Application Number
- CN202520658662.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-09
AI Technical Summary
In the packaging containers of condiments, food, and fast-moving consumer goods, the circulation of air inside and outside the container causes changes in the flavor and texture of the contents.
Design a container lid comprising a lid body, a gas control valve, and a contents control valve. By controlling the flow of gas and contents through the gas and contents flow channels between the deformed outer shell and the flexible inner liner, an airtight seal is achieved.
It effectively isolates air from the contents, keeping the contents fresh, preventing spoilage, and avoiding changes in flavor and texture.
Smart Images
Figure CN223935429U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging technology, and in particular to a container lid and a packaging container. Background Technology
[0002] In the packaging containers of condiments, food and fast-moving consumer goods, most use pull-tab lids. When using them, the pull tab is pulled open, which means that the air inside and outside the container is in a state of circulation during use. This can easily cause changes in the flavor and taste of the contents due to contact with the air.
[0003] The above statements are for the purpose of providing background information in relation to this application only, and do not necessarily constitute prior art. Summary of the Invention
[0004] The purpose of this application is to provide a container lid and a packaging container, which aims to solve the problem that the air inside and outside the packaging container is in a state of circulation during use, which can easily cause changes in the flavor and taste of the contents due to contact with the air.
[0005] This application provides a container cap for opening and closing the opening of a double-layered container. The double-layered container includes a compressible outer shell and a flexible inner liner disposed within the outer shell and airtightly isolated from the outer shell and separable from the outer shell. The container opening communicates with the flexible inner liner. The outer shell is provided with a gas inlet and outlet for communicating with a gap between the outer shell and the flexible inner liner. The container cap includes:
[0006] The lid body has an installation part, a gas flow channel, a content flow channel, and a content outlet. The installation part is configured to be connected to the container opening. The gas flow channel is configured to communicate with the gas inlet and outlet when the installation part is connected to the container opening. The content flow channel is airtightly isolated from the gas flow channel and is configured to communicate with the container opening and the content outlet when the installation part is connected to the container opening. The content outlet is configured to output the contents inside the flexible inner liner.
[0007] A gas control valve, disposed on the cover body to control the opening and closing of the gas flow channel, is configured to close when the outer shell is in a compressed deformation state and open when the outer shell is in a decompressed deformation state; and
[0008] A contents control valve, disposed on the cover body to control the flow of contents, is configured to open when the outer shell is in a compressed deformation state and close when the outer shell is in a decompressed deformation state.
[0009] In some embodiments of the container lid,
[0010] The cover body includes a cap, the cap including an air hole communicating with the gas flow channel, and the gas control valve is disposed at the air hole and controls the opening and closing of the gas flow channel by controlling the opening and closing of the air hole; and / or
[0011] The cover body includes a cap and an inner partition disposed inside the cap. The inner partition is configured to be located between the container opening and the contents outlet when the mounting part is connected to the container opening of the double-layer container. The inner partition includes a contents hole communicating with the contents flow channel. The contents control valve is disposed at the contents hole and controls the opening and closing of the contents flow channel by controlling the opening and closing of the contents hole.
[0012] In some embodiments of the container lid, the gas control valve includes:
[0013] A connecting column is disposed within the air hole and is movably disposed along the axial direction of the air hole;
[0014] A limiting part, disposed at the axial first end of the connecting column, located on the outer side of the outer wall, is configured to prevent the gas control valve from detaching from the outer wall; and
[0015] A valve head is disposed at the second axial end of the connecting column, located on the inner side of the outer wall, and the valve head has a sealing surface that protrudes radially relative to the connecting column and faces the outer wall.
[0016] In some embodiments of the container lid, the contents control valve includes a flexible valve plate located within the contents flow channel and covering the contents opening.
[0017] In some embodiments of the container lid,
[0018] The contents control valve includes a first protrusion connected to the flexible valve plate and projecting toward the inner partition wall;
[0019] The inner partition includes a first recess facing the opening of the flexible valve plate, and the first protrusion is located within the first recess.
[0020] In some embodiments of the container cap, the cap body further includes a valve plate limiting portion disposed between the cap and the flexible valve plate, configured to fix the flexible valve plate to the inner partition wall.
[0021] In some embodiments of the container lid,
[0022] The valve plate limiting part includes a limiting cylinder located in the content flow channel. The first axial end of the limiting cylinder is installed on the cap and communicates with the content outlet. The side wall of the limiting cylinder is provided with a content communication port that communicates the inside and outside of the limiting cylinder.
[0023] The contents control valve includes a second protrusion disposed on the side of the flexible valve plate away from the inner partition wall, the second protrusion being located inside the axial second end of the limiting cylinder.
[0024] In some embodiments of the container lid,
[0025] The cap includes an outer cylinder and an outer top wall connected to the first axial end of the outer cylinder, and the mounting part is disposed on the outer cylinder;
[0026] The cover body also includes an inner cylinder, which is arranged radially and spaced inside the outer cylinder along the cover body. The first axial end of the inner cylinder is connected to the outer top wall.
[0027] The inner partition wall is disposed inside the outer cylinder and is connected to the second axial end of the inner cylinder;
[0028] The outer cylinder, the inner cylinder, the outer top wall, and the inner partition wall form the gas flow channel;
[0029] The inner cylinder, the outer top wall, and the inner partition wall form the content flow channel.
[0030] In some embodiments of the container lid,
[0031] The vent is disposed on the outer top wall located radially inside the outer cylinder and radially outside the inner cylinder; and / or
[0032] The contents outlet is located on the radially inner side of the inner cylinder of the outer top wall, and the contents hole is located on the inner partition wall located on the radially inner side of the inner cylinder.
[0033] In some embodiments of the container lid,
[0034] The outer cylinder, the inner cylinder, and the outer top wall are integrally formed, and the inner partition wall is snapped into the axial second end of the inner cylinder; and / or
[0035] The inner partition wall and the second axial end of the inner cylinder are sealed by a form fit; and / or
[0036] The inner partition wall includes a sealing cylinder, which is configured to seal against the container opening when the mounting portion is connected to the container opening of the double-walled container; and / or
[0037] A gas communication port is provided on the inner partition wall or between the inner partition wall and the outer cylinder, which communicates with the gas flow channel. The gas communication port is configured to connect the radial inner space of the outer cylinder where the mounting part is provided with the gas flow channel.
[0038] In some embodiments of the container lid,
[0039] The inner partition wall includes a second recess and a first locking portion facing the opening of the inner cylinder;
[0040] The second axial end of the inner cylinder includes a second locking portion. The second axial end of the inner cylinder is located inside the second recess and matches the shape of the second recess to achieve a seal. The first locking portion engages with the second locking portion.
[0041] In some embodiments, the container lid also includes a top cover configured to cooperate with the lid body to openably and closably cover the contents outlet.
[0042] A second aspect of this application provides a packaging container, comprising:
[0043] A double-walled container includes a deformable, compressible outer shell and a separable, airtight, and separable flexible inner liner disposed within the outer shell. The container opening of the double-walled container communicates with the flexible inner liner. The outer shell is provided with a gas inlet and outlet for communicating with the space between the outer shell and the flexible inner liner.
[0044] The container lid described in the first aspect of this application has a mounting portion of the lid body connected to the container opening of the double-layer container, a gas flow channel connected to the gas inlet and outlet, and a content flow channel connected to the container opening.
[0045] Based on the container cap and packaging container provided in this application, the double-layer container includes a compressible outer shell and a flexible inner liner disposed within the outer shell that is airtightly isolated from the outer shell and separable. The container opening communicates with the flexible inner liner. The outer shell is provided with a gas inlet and outlet for communicating with the space between the outer shell and the flexible inner liner. The container cap includes a cap body, a gas control valve, and a contents control valve. The gas control valve closes when the outer shell is in a compressible deformation state to cut off the gas flow channel of the cap body, and opens when the outer shell is in a decompressed deformation state to allow gas to flow through the gas flow channel. The contents control valve opens when the outer shell is in a compressible deformation state to allow contents to flow through the contents flow channel of the cap body, and closes when the outer shell is in a decompressed deformation state to cut off the contents flow channel of the cap body. Therefore, when the outer shell is in a state of compression deformation, the compression deformation of the outer shell can be directly transmitted to the flexible inner liner, either directly or through the gas between the outer shell and the flexible inner liner, causing the flexible inner liner to be compressed. The contents inside the flexible inner liner can flow out of the packaging container through the container opening, the contents flow channel, and the contents outlet. When the outer shell is in a state of decompression deformation, the contents channel is cut off, and the contents inside the flexible inner liner no longer flow out. Air enters between the outer shell and the flexible inner liner through the gas flow channel and the gas inlet and outlet. The atmospheric pressure keeps the flexible inner liner at its current capacity, preventing air from entering the flexible inner liner and isolating the air from the contents inside the flexible inner liner. This prevents changes in flavor and taste due to contact with air, helps keep the contents fresh, and prevents spoilage.
[0046] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0047] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0048] Figure 1 This is a cross-sectional view of the bottle mouth and container cap of a double-layered packaging container according to an embodiment of this application.
[0049] Figure 2 This is a schematic diagram of the container lid structure according to an embodiment of this application, wherein the upper lid is in the open state and the gas control valve and the lid body are in the disassembled state.
[0050] Figure 3 for Figure 2 The diagram shows a top view of the container lid, with the lid in the open position.
[0051] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the container lid, with the lid in the open position.
[0052] Figure 5 for Figure 2 The diagram shows an exploded view of the inner partition wall of the container lid body and the liquid control valve. Detailed Implementation
[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0055] In the description of this application, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.
[0056] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0057] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0058] like Figures 1 to 5 As shown, this application embodiment provides a container lid 1 for opening and closing the container opening 2A of a double-layer container 2. The double-layer container 2 includes a compressible outer shell 21 and a flexible inner liner 22 disposed within the outer shell 21, which is airtightly isolated from the outer shell 21 and separable. The container opening 2A communicates with the flexible inner liner 22, and the outer shell 21 is provided with a gas inlet / outlet 21A for communicating with the space between the outer shell 21 and the flexible inner liner 22.
[0059] The container lid 1 includes a lid body 11, a gas control valve 12, and a contents control valve 13.
[0060] The lid body 11 has a mounting portion 11A, a gas flow channel 11B, a content flow channel 11C, and a content outlet 11D. The mounting portion 11A is configured to connect to the container opening 2A. The gas flow channel 11B is configured to communicate with the gas inlet / outlet 21A when the mounting portion 11A is connected to the container opening 2A. The content flow channel 11C is airtightly isolated from the gas flow channel 11B and is configured to communicate with both the container opening 2A and the content outlet 11D when the mounting portion 11A is connected to the container opening 2A. The content outlet 11D is configured to output the contents within the flexible inner liner 22.
[0061] A gas control valve 12 is disposed on the cover body 11 to control the opening and closing of the gas flow channel 11B. It is configured to close when the outer shell 21 is in a state of compression deformation and open when the outer shell 21 is in a state of release from compression deformation.
[0062] The contents control valve 13 is disposed on the cover body 11 to control the opening and closing of the contents flow channel 11C, and is configured to open when the outer shell 21 is in a compressed deformation state and close when the outer shell 21 is in a decompressed deformation state.
[0063] When the container lid of this embodiment is used to package a container, the double-layer container 2 includes a compressible outer shell 21 and a flexible inner liner 22 disposed inside the outer shell 21 and airtightly isolated from the outer shell 21 and separable. The container opening 2A communicates with the flexible inner liner 22. The outer shell 21 is provided with a gas inlet and outlet 21A for communicating with the space between the outer shell 21 and the flexible inner liner 22. The container lid 1 includes a lid body 11, a gas control valve 12 and a contents control valve 13. The gas control valve 12 is closed when the outer shell 21 is in a compressible state to cut off the gas flow channel 111B of the lid body 11, and is opened when the outer shell 21 is in a decompressed state to allow gas to flow through the gas flow channel 11B. The contents control valve 13 is opened when the outer shell 21 is in a compressible state to allow contents to flow through the contents flow channel 11C of the lid body 11, and is closed when the outer shell 21 is in a decompressed state to cut off the contents flow channel 11C of the lid body 11. When the outer shell 21 is in a state of compression deformation, the compression deformation of the outer shell 21 can be directly or through the gas between the outer shell 21 and the flexible inner liner 22 to the flexible inner liner 22, causing the flexible inner liner 22 to be compressed. The contents inside the flexible inner liner 22 can flow out of the packaging container 2 through the container opening 2A, the contents flow channel 11C, and the contents outlet 11D. When the outer shell 21 is in a state of decompression deformation, the contents inside the flexible inner liner 22 no longer flow out because the contents channel 11C is cut off. Air enters between the outer shell 21 and the flexible inner liner 22 through the gas flow channel 11B and the gas inlet and outlet 21A. The atmospheric pressure keeps the flexible inner liner 22 at its current capacity, and no air enters the flexible inner liner 22. This achieves isolation between the air and the contents inside the flexible inner liner 22, so that the contents will not change in flavor or taste due to contact with air, which helps to keep the contents fresh and prevents spoilage.
[0064] Among them, "compression deformation state" refers to the state in which the outer shell 21 is compressed and deformed due to compression; "release from compression deformation state" refers to the state in which the outer shell 21 recovers from the deformed state to the original state due to the reduction or disappearance of the compression force.
[0065] The packaging container 2 can be, for example, a bottle, a box, or a barrel. The contents that the packaging container 2 can hold can be, for example, liquid substances such as soy sauce or vinegar, solid-liquid mixtures such as fermented bean paste or chopped chili, or semi-solid substances such as salad dressing or sesame paste.
[0066] like Figures 1 to 5As shown, in some embodiments of the container lid 1, the lid body 11 includes a cap, the cap including a vent 113A communicating with a gas flow channel 11B, a gas control valve 12 disposed at the vent 113A and controlling the opening and closing of the gas flow channel 11B by controlling the opening and closing of the vent 113A; and / or the lid body 11 includes a cap and an inner partition 114 disposed inside the cap, the inner partition 114 being configured to be located between the container opening 2A and the contents outlet 11D when the mounting part 11A is connected to the container opening 2A of the double-layer container 2, the inner partition 114 including a contents hole 114A communicating with a contents flow channel 11C, a contents control valve 13 disposed at the contents hole 114A and controlling the opening and closing of the contents flow channel 11C by controlling the opening and closing of the contents hole 114A.
[0067] By placing the gas control valve 12 at the vent 113A on the outer cap and controlling the opening and closing of the gas passage 11B by controlling the opening and closing of the vent 113A, the control of the opening and closing of the gas passage 11B can be made simple and convenient. By placing the contents control valve 13 at the contents hole 114A on the inner partition 114 and controlling the opening and closing of the contents passage 11C by controlling the opening and closing of the contents hole 114A, the control of the contents passage 11C can be made simple and convenient.
[0068] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of the container cap 1, the gas control valve 12 includes a connecting post 121, a limiting portion 122, and a valve head 123. The connecting post 121 is disposed within the vent 113A and is movably disposed along the axial direction of the vent 113A. The limiting portion 122 is disposed at the first axial end of the connecting post 121, located on the outer side of the outer wall, and is configured to prevent the gas control valve 12 from detaching from the outer wall. The valve head 123 is disposed at the second axial end of the connecting post 121, located on the inner side of the outer wall, and the valve head 123 has a sealing surface 1231 that protrudes radially relative to the connecting post 121 and faces the outer wall.
[0069] The gas control valve 12 includes a connecting column 121, a limiting part 122, and a valve head 123. The gas control valve 12 can be opened or closed by the fluid pressure in the gas flow channel 11B. The opening or closing of the gas control valve 12 can be controlled by whether the outer shell 21 is in a squeezed deformation state or a de-squeezed deformation state.
[0070] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments of the container lid 1, the contents control valve 13 includes a flexible valve plate 131, which is located in the contents flow channel 11C and covers the contents hole 114A.
[0071] The contents control valve 13 includes a flexible valve plate 131, which allows the contents control valve 13 to open when the housing 21 is in a squeezed and deformed state, under the pressure of the contents, and to close when the housing 21 is in a de-squeezed and de-deformed state, under the action of atmospheric pressure of the air entering the liquid flow channel 11C from the contents outlet 11D. Thus, the opening or closing of the contents control valve 13 can be controlled by whether the housing 21 is in a squeezed and deformed state or a de-squeezed and deformed state.
[0072] like Figure 5 As shown, in some embodiments of the container lid 1, the inner partition 114 is provided with a plurality of contents holes 114A, and the flexible valve plate 131 covers the plurality of contents holes 114A.
[0073] The inner partition 114 is provided with multiple contents holes 114A. The flexible valve plate 131 covers the multiple contents holes 114A, which facilitates the smooth output of contents from the contents outlet 11D when the outer shell 21 is in a state of compression and deformation.
[0074] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments of the container lid 1, the contents control valve 13 includes a first protrusion 132 connected to the flexible valve plate 131 and protruding toward the inner partition 114; the inner partition 114 includes a first recess 114C that opens toward the flexible valve plate 131, and the first protrusion 132 is located within the first recess 114C.
[0075] The cooperation between the first protrusion 132 and the first recess 114C facilitates the positioning and fixation of the flexible valve plate 131 relative to the inner partition 114, thereby maintaining the on / off control function of the contents control valve 13 on the contents flow channel 11C.
[0076] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments of the container cap 1, the cap body 11 further includes a valve plate limiting part 115, which is disposed between the cap and the flexible valve plate 131 and is configured to fix the flexible valve plate 131 to the inner partition wall 114.
[0077] The valve plate limiting part 115 is provided to facilitate the fixing of the flexible valve plate 131 to the inner partition wall 114, so as to maintain the opening and closing control function of the contents control valve 13 on the contents flow channel 11C.
[0078] like Figure 1 , Figure 4 and Figure 5As shown, in some embodiments of the container cap 1, the valve plate limiting part 115 includes a limiting cylinder 1151 located in the content flow channel 11C. The first axial end of the limiting cylinder 1151 is mounted on the cap and communicates with the content outlet 11D. The side wall of the limiting cylinder 1151 is provided with a content communication port (not shown in the figure) that communicates the inside and outside of the limiting cylinder 1151. The content control valve 13 includes a second protrusion 133 disposed on the side of the flexible valve plate 131 away from the inner partition wall 114. The second protrusion 133 is located inside the second axial end of the limiting cylinder 1151.
[0079] The valve plate limiting part 115 includes a limiting cylinder 1151. The second protrusion 133 of the contents control valve 13 is located inside the second axial end of the limiting cylinder 1151, which facilitates the flexible valve plate 131 to be fixed on the inner partition wall 114, so as to maintain the opening and closing control function of the contents control valve 13 on the contents flow channel 11C.
[0080] like Figure 1 and Figure 4 As shown, in some embodiments of the container cap 1, the cap includes an outer cylinder 111 and an outer top wall 113 connected to the axial first end of the outer cylinder 11. A mounting part 11A is disposed on the outer cylinder 111. The cap body 11 also includes an inner cylinder 112, which is disposed radially at intervals inside the outer cylinder 111 along the cap body 11. The axial first end of the inner cylinder 112 is connected to the outer top wall 113. An inner partition wall 114 is disposed inside the outer cylinder 111 and connected to the axial second end of the inner cylinder 112. The outer cylinder 111, inner cylinder 112, outer top wall 113, and inner partition wall 114 form a gas flow channel 11B. The inner cylinder 112, outer top wall 113, and inner partition wall 114 form a content flow channel 11C.
[0081] By setting an outer cylinder 111, an inner cylinder 112, an outer top wall 113, and an inner partition wall 114, the cover body 11 can form an airtight gas flow channel 11B and a liquid flow channel 11C through a simple structure and combination.
[0082] like Figures 1 to 4 As shown, in some embodiments of the container lid 1, an air hole 113A is provided on the outer top wall 113 located radially inside the outer cylinder 111 and radially outside the inner cylinder 112; and / or the contents outlet 11D is provided on the outer top wall 113 radially inside the inner cylinder 112, and the contents hole 114A is provided on the inner partition wall 114 located radially inside the inner cylinder 112.
[0083] The vent 113A is located on the outer top wall 113, which is radially inner to the outer cylinder 111 and radially outer to the inner cylinder 112; and / or the contents outlet 11D is located on the radially inner side of the inner cylinder 112 of the outer top wall 113, and the contents hole 114A is located on the inner partition wall 114, which is radially inner to the inner cylinder 112. All of these are conducive to the rational arrangement of the gas flow channel 11B and the contents flow channel 11C.
[0084] like Figure 1 and Figure 4 As shown, in some embodiments of the container lid 1, the outer cylinder 111, the inner cylinder 112, and the outer top wall 113 are integrally formed, and the inner partition wall 114 is engaged with the axial second end of the inner cylinder 112; and / or the inner partition wall 114 and the axial second end of the inner cylinder 112 are sealed by form fit; and / or the inner partition wall 114 includes a sealing cylinder 1141, which is configured to seal with the container opening 2A when the mounting part 11A is connected to the container opening 2A of the double-layer container 2; and / or a gas connection port 114B communicating with the gas flow channel 11B is provided on the inner partition wall 114 or between the inner partition wall 114 and the outer cylinder 111, and the gas connection port 114B is configured to communicate with the radially inner space of the outer cylinder 111 where the mounting part 11A is provided and the gas flow channel 11B.
[0085] The outer cylinder 111, inner cylinder 112, and outer top wall 113 are integrally formed. The inner partition wall 114 is engaged with the second axial end of the inner cylinder 112, which facilitates the rapid positioning and assembly of the gas control valve 12 and the contents control valve 13 with the outer cylinder 111, inner cylinder 112, outer top wall 113, and inner partition wall 114, thereby improving the yield and processing efficiency of the container lid 1.
[0086] The inner partition wall 114 and the second axial end of the inner cylinder 112 are sealed by form fit, which facilitates the airtight isolation between the gas flow channel 11B and the contents flow channel 11C by the form fit between the inner partition wall 114 and the inner cylinder 112. There is no need to set up a special sealing structure, which facilitates the rapid positioning and assembly of the various components of the lid body 11, and improves the yield and processing efficiency of the container lid 1.
[0087] The inner partition 114 includes a sealing cylinder 1141 that seals with the container opening 2A, which facilitates the sealing of the portion of the container cap 1 other than the portion from which the contents flow out with the container opening 2A of the double-layer container 2, preventing uncontrolled outflow of contents from between the container cap 1 and the container opening 2A.
[0088] A gas connection port 114B is provided on the inner partition wall 114 or between the inner partition wall 114 and the outer cylinder 111, which communicates with the gas flow channel 11B. The gas connection port 114B is configured to connect the radial inner space of the outer cylinder 111 with the installation part 11A and the gas flow channel 11B. This allows the gas flow channel 11B and the gas inlet / outlet 21A of the outer shell 21 to flow into the gas inlet / outlet 21A through the gap between the installation part 11A and the installation port 2A. Therefore, it is not necessary to specially set up a connecting channel to connect the gas flow channel 11B and the gas inlet / outlet 21A, which helps to simplify the structure of the container cover 1.
[0089] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments of the container lid 1, the inner partition 114 includes a second recess 114D and a first locking portion 1142 that open toward the inner cylinder 112; the axial second end of the inner cylinder 112 includes a second locking portion 1121, the axial second end of the inner cylinder 112 is located in the second recess 114D and is shaped to fit the second recess 114D to achieve a seal, and the first locking portion 1142 engages with the second locking portion 1121.
[0090] By fitting the axial second end of the inner cylinder 112 with the shape of the second recess 114D to achieve sealing and the first locking part 1142 and the second locking part 1121 to engage, the inner cylinder 112 and the inner partition wall 114 can be sealed together. When assembling the inner cylinder 112 and the inner partition wall 114, simply push the axial second end of the inner cylinder 112 into the second recess 114D, and the first locking part 1142 and the second locking part 1121 can engage and connect, thereby facilitating the rapid positioning and assembly of the various components of the cap body 11 and improving the yield and processing efficiency of the container cap 1.
[0091] like Figures 1 to 4 As shown, in some embodiments, the container lid 1 also includes an upper cover 14, which is configured to cooperate with the lid body 11 to openably and closably cover the contents outlet 11D.
[0092] The top cover 14 is provided to prevent the contents outlet 11D from being contaminated, thereby preventing the contents output from the contents outlet 11D from being contaminated.
[0093] This application also provides a packaging container, including a double-layer container 2 and a container lid 1 according to this application embodiment.
[0094] The double-walled container 2 includes a deformable outer shell 21 and a separable, airtight, flexible inner liner 22 disposed within the outer shell 21. The container opening 2A of the double-walled container 2 communicates with the flexible inner liner 22. The outer shell 21 is provided with a gas inlet / outlet 21A for communicating with the space between the outer shell 21 and the flexible inner liner 22.
[0095] The mounting part 11A of the lid body 11 of the container lid 1 is connected to the container opening 2A of the double-layer container 2, the gas flow channel 11B is connected to the gas inlet and outlet 21A, and the contents flow channel 11C is connected to the container opening 2A.
[0096] The packaging container of this application embodiment has the advantages of the container lid of this application embodiment.
[0097] The following combination Figures 1 to 5 The packaging container and its lid according to embodiments of this application are described. In embodiments of this application, the packaging container is a packaging bottle. The double-layer container is a double-layer bottle, and the container lid is a bottle cap that fits into the mouth of the double-layer bottle.
[0098] like Figure 1 As shown, the packaging container in this embodiment of the application includes a double-layer container 2 and a container lid 1.
[0099] The double-walled container 2 includes a compressible outer shell 21 and a separable, airtight, flexible inner liner 22 disposed within the outer shell 21. The outer shell 21 may be made of, for example, plastic and possess a certain degree of elasticity, allowing it to deform under pressure and return to its original state when the pressure decreases or disappears. The flexible inner liner 22 may be made of, for example, plastic or silicone, and thus will not automatically return to its original shape after the force causing its deformation decreases or disappears. The container opening 2A of the double-walled container 2 communicates with the flexible inner liner 22, allowing the contents of the flexible inner liner 22 to be discharged from the container opening 2A. The container opening 2A has external threads on its radially outer side. The outer shell 21 has a gas inlet / outlet 21A for communicating with the space between the outer shell 21 and the flexible inner liner 22. The air flowing from the gas inlet / outlet 21A to the space between the outer shell 21 and the flexible inner liner 22 helps the flexible inner liner 22 maintain its deformed capacity, and allows the flexible inner liner 22 to deform further directly based on its deformed capacity when the outer shell 21 is compressed again.
[0100] The container lid 1 includes a lid body 11, a gas control valve 12, a contents control valve 13, and an upper cover 14.
[0101] The cover body 11 includes an outer cylinder 111, an inner cylinder 112, an outer top wall 113, an inner partition wall 114, and a valve plate limiting part 115.
[0102] A mounting part 11A is provided on the radially inner side of the outer cylinder 111. The mounting part 11A has an internal thread. By threading the internal thread of the mounting part 11A with the external thread of the container opening 2A, the container cover 1 can be installed on the container opening 2A of the double-layer container 2.
[0103] The inner cylinder 112 is arranged radially at intervals inside the outer cylinder 111 along the cover body 11. The first axial ends of both the outer cylinder 111 and the inner cylinder 112 are connected to the outer top wall 113. Furthermore, the outer cylinder 111, the inner cylinder 112, and the outer top wall 113 are integrally formed. A second locking portion 1121 is provided on the radially outer side of the second axial end of the inner cylinder 112.
[0104] The outer cylinder 111, inner cylinder 112, outer top wall 113, and inner partition wall 114 form a gas flow channel 11B. The gas flow channel 11B is connected to the gas inlet and outlet 21A when the mounting part 11A is connected to the container opening 2A.
[0105] The inner cylinder 112, the outer top wall 113, and the inner partition wall 114 form the content flow channel 11C. The content flow channel 11C is airtightly isolated from the gas flow channel 11B, and is connected to the container opening 2A and the content outlet 11D when the mounting part 11A is connected to the container opening 2A.
[0106] The outer top wall is provided with vents 113A located radially inside the outer cylinder and radially outside the inner cylinder. The contents outlet 11D is located radially inside the inner cylinder 112 on the outer top wall 113.
[0107] The inner partition 114 is disposed inside the outer cylinder 111. The inner partition 114 includes a first recess 114C opening toward the liquid control valve, a second recess 114D opening toward the inner cylinder 112, a sealing cylinder 1141, and a first locking portion 1142.
[0108] The first recess 114C is cylindrical. The second recess 114D is radially spaced from the first recess 114C and is annular. The axial second end of the inner cylinder 112 is located within the second recess 114D and fits the shape of the second recess 114D to achieve a seal between the axial second end of the inner cylinder 112 and the inner partition wall 114.
[0109] The inner partition wall 114 is provided with a plurality of contents holes 114A located on the radial inner side of the inner cylinder 112. The plurality of contents holes 114A are evenly arranged along the circumference of the container cover 1 between the first recess 114C and the second recess 114D.
[0110] The sealing cylinder 1141 is sealed and fitted with the container opening 2A when the mounting part 11A is connected to the container opening 2A of the double-layer container 2.
[0111] The first locking part 1142 is disposed on the side wall of the second recess 114B away from the first recess 114C, and engages with the second locking part 1121 to achieve axial second-end locking connection between the inner partition wall 114 and the inner cylinder 112.
[0112] A gas connection port 114B is provided between the inner partition wall 114 and the outer cylinder 111, which communicates with the gas flow channel 11B. The gas connection port 114B connects the radial inner space of the outer cylinder 111, which is provided with the mounting part 11A, and the gas flow channel 11B.
[0113] The valve plate limiting part 115 includes a limiting cylinder 1151. The first axial end of the limiting cylinder 1151 is mounted on the outer top wall 113 and communicates with the contents outlet 11D. The side wall of the limiting cylinder 1151 is provided with a contents communication port that communicates the inside and outside of the limiting cylinder 1151.
[0114] The gas control valve 12 is located at the vent 113A on the outer top wall 113 and controls the opening and closing of the gas flow channel 11B by controlling the opening and closing of the vent 113A. The gas control valve 12 is closed when the outer shell 21 is in a compressed and deformed state, and is open when the outer shell 21 is in a decompressed and deformed state.
[0115] The gas control valve 12 includes a connecting post 121, a limiting part 122, and a valve head 123. The connecting post 121 is disposed within the vent 113A and is movably disposed along the axial direction of the vent 113A. The limiting part 122 is disposed at the first axial end of the connecting post 121, located outside the outer top wall 113, and is configured to prevent the gas control valve 12 from disengaging from the outer top wall 113. The valve head 123 is disposed at the second axial end of the connecting post 121, located inside the outer top wall 113. The valve head 123 has a sealing surface 1231 that protrudes radially relative to the connecting post 121 and faces the outer top wall 113. When the sealing surface 1231 abuts against the outer top wall 113, the gas control valve 12 is closed, and the vent 113A is sealed; when the sealing surface 1231 separates from the outer top wall 113, the gas control valve 12 is opened, and the vent 113A is opened.
[0116] The contents control valve is located at multiple contents holes 114A on the inner partition wall, and controls the opening and closing of the contents flow channel 11C by controlling the opening and closing of the multiple contents holes 114A. The contents control valve 13 opens when the outer shell 21 is in a compressed and deformed state, and closes when the outer shell 21 is in a decompressed and deformed state.
[0117] The contents control valve 13 includes a flexible valve plate 131, a first protrusion 132, and a second protrusion 133.
[0118] A flexible valve plate 131 is located within the content flow channel 11C and covers multiple content holes 114A. The flexible valve plate 131 is circular. The flexible valve plate 131 is made of, for example, silicone. When the outer shell 21 is in a compressed and deformed state, the flexible valve plate 131 can be quickly separated from the inner partition wall 14 under the pushing force of the contents being squeezed outward, thereby opening the content control valve 13. When the outer shell 21 is in a decompressed and deformed state, it abuts against the inner partition wall 114 under the atmospheric pressure of the air in the content flow channel 11C, thereby closing the content control valve 13.
[0119] The first protrusion 132 of the contents control valve 13 is connected to the flexible valve plate 131 and protrudes toward the inner partition 114. The first protrusion 132 is located within the first recess 114C.
[0120] The second protrusion 133 of the contents control valve 13 is disposed on the side of the flexible valve plate 131 away from the inner partition wall 114. The second protrusion 133 is located inside the axial second end of the limiting cylinder 1151.
[0121] The upper cover 14 mates with the cover body 11 and is closable over the contents outlet 11D. The upper cover 14 is hinged to the cover body 11. The upper cover 14 has a protrusion 141, which extends into the contents outlet 11D when the upper cover 14 is engaged with the cover body 11, thereby sealing the contents outlet 11D and better preventing contamination of the contents outlet 11D.
[0122] In this embodiment, an airtight gas channel 11B and a content flow channel 11C are provided inside the cap body 11 of the container cap 1. This allows the contents to be output when the outer shell 21 is in a compressed and deformed state during the use of the packaging container, while the gas flow channel does not output gas. When the outer shell 21 is decompressed, the contents do not flow back into the flexible inner liner 22, and gas flows between the outer shell 21 and the flexible inner liner 22 of the double-layer container 2. Therefore, the contents inside the double-layer container do not come into contact with the outside air during the use cycle of the packaging container, and the contents that come into contact with air do not flow back into the double-layer container 2, thereby better ensuring the quality of the contents.
[0123] In this embodiment, the gas control valve 12 includes a connecting column 121, a limiting part 122, and a valve head 123, forming a one-way valve. The contents control valve 13 includes a flexible valve plate 131, also forming a one-way valve. The working principle of the packaging container and its lid is as follows:
[0124] When the outer shell 21 is in a compressed and deformed state, the gas in the gas flow channel 11B causes the gas control valve 12 to move upward relative to the outer top wall 113. The sealing surface 1231 of the valve head 123 abuts against the outer top wall 113, the gas control valve 12 closes, and the gas cannot flow out from the vent 113A. The gas in the gas flow channel 11B, the gap between the outer cylinder 111 connected to the gas flow channel 11B and the container opening 2A, and the gap between the outer shell 21 and the flexible inner liner 22 does not flow out. Meanwhile, when the outer shell 21 is in a state of compression deformation, the outer shell 21 can directly squeeze or squeeze the flexible inner liner 22 through the air between the outer shell 21 and the flexible inner liner 22, applying pressure to the contents inside the flexible inner liner 22 and causing them to flow out from the container opening 2A. The contents flowing to the contents hole 114A push open the flexible valve plate 131, which opens the contents control valve 13, so that the container opening 2A is connected to the contents flow channel 11C. The contents inside the flexible inner liner 22 can flow out of the packaging container 2 in sequence through the container opening 2A of the double-layer container 2, the contents hole 114A of the inner partition wall 114, the contents connection port of the limiting cylinder 1151, the contents flow channel 11C of the cap body 11, and the contents outlet 11D on the outer top wall 113.
[0125] When the outer shell 21 is in a state of deformation, its rebound causes a negative pressure to form between the outer shell 21 and the flexible inner liner 22. Under the action of the pressure difference inside and outside the gas channel 11B, the gas control valve 12 moves downward relative to the outer top wall 113, opening the gas control valve 12 and allowing gas to flow from the outside into the gas flow channel 11B through the vent 113A. Air enters between the outer shell 21 and the flexible inner liner 22, so that the flexible inner liner 22 can maintain its deformed capacity. At the same time, the negative pressure formed between the outer shell 21 and the flexible inner liner 22 due to the rebound of the outer shell 21 also tends to increase the capacity of the flexible inner liner 22, creating a negative pressure. Under the action of the pressure difference between the internal pressure of the flexible inner liner 22 and the atmospheric pressure, the air in the content flow channel 11C, which is connected to the outside through the content outlet 11D, can exert pressure on the flexible valve plate 131 against the inner partition wall 114. The content control valve 13 closes, and the content flow channel 11C is cut off, preventing the contents that have flowed into the content flow channel 11C from flowing back.
[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this application.
Claims
1. A container cap (1) for opening and closing the container opening (2A) of a double-layered container (2), the double-layered container (2) comprising a compressible outer shell (21) and a flexible inner liner (22) disposed within the outer shell (21) and airtightly isolated from and separable from the outer shell (21), the container opening (2A) communicating with the flexible inner liner (22), the outer shell (21) having a gas inlet and outlet (21A) communicating with the space between the outer shell (21) and the flexible inner liner (22), characterized in that, The container lid (1) includes: The cover body (11) has an installation part (11A), a gas flow channel (11B), a content flow channel (11C), and a content outlet (11D). The installation part (11A) is configured to be connected to the container opening (2A). The gas flow channel (11B) is configured to communicate with the gas inlet / outlet (21A) when the installation part (11A) is connected to the container opening (2A). The content flow channel (11C) is airtightly isolated from the gas flow channel (11B) and is configured to communicate with the container opening (2A) and the content outlet (11D) when the installation part (11A) is connected to the container opening (2A). The content outlet (11D) is configured to output the contents inside the flexible inner liner (22). A gas control valve (12), disposed on the cover body (11) to control the opening and closing of the gas flow channel (11B), is configured to close when the outer shell (21) is in a compressed deformation state and open when the outer shell (21) is in a decompressed deformation state; and A contents control valve (13), disposed on the cover body (11) to control the opening and closing of the contents flow channel (11C), is configured to open when the outer shell (21) is in a compressed deformation state and close when the outer shell (21) is in a decompressed deformation state.
2. The container lid (1) according to claim 1, characterized in that, The cover body (11) includes a cap, the cap including a vent (113A) communicating with the gas flow channel (11B), and the gas control valve (12) is disposed at the vent (113A) and controls the opening and closing of the gas flow channel (11B) by controlling the opening and closing of the vent (113A); and / or The cover body (11) includes a cap and an inner partition (114) disposed inside the cap. The inner partition (114) is configured to be located between the container opening (2A) and the contents outlet (11D) when the mounting part (11A) is connected to the container opening (2A) of the double-layer container (2). The inner partition (114) includes a contents hole (114A) communicating with the contents flow channel (11C). The contents control valve (13) is disposed at the contents hole (114A) and controls the opening and closing of the contents flow channel (11C) by controlling the opening and closing of the contents hole (114A).
3. The container lid (1) according to claim 2, characterized in that, The gas control valve (12) includes: A connecting column (121) is disposed within the air hole (113A) and is movably disposed along the axial direction of the air hole (113A); A limiting part (122), disposed at the axial first end of the connecting column (121), located on the outer side of the outer wall, is configured to prevent the gas control valve (12) from disengaging from the outer wall; and A valve head (123) is disposed at the second axial end of the connecting column (121) and located on the inner side of the outer wall. The valve head (123) has a sealing surface (1231) that protrudes radially relative to the connecting column (121) and faces the outer wall.
4. The container lid (1) according to claim 2, characterized in that, The contents control valve (13) includes a flexible valve plate (131) located within the contents flow channel (11C) and covering the contents hole (114A).
5. The container lid (1) according to claim 4, characterized in that, The contents control valve (13) includes a first protrusion (132) that is connected to the flexible valve plate (131) and protrudes toward the inner partition (114). The inner partition (114) includes a first recess (114C) that opens toward the flexible valve plate (131), and the first protrusion (132) is located within the first recess (114C).
6. The container lid (1) according to claim 4, characterized in that, The cover body (11) also includes a valve plate limiting part (115), which is disposed between the cover and the flexible valve plate (131) and is configured to fix the flexible valve plate (131) to the inner partition wall (114).
7. The container lid (1) according to claim 6, characterized in that, The valve plate limiting part (115) includes a limiting cylinder (1151) located in the content flow channel (11C). The first axial end of the limiting cylinder (1151) is installed on the cap and communicates with the content outlet (11D). The side wall of the limiting cylinder (1151) is provided with a content communication port that communicates the inside and outside of the limiting cylinder (1151). The contents control valve (13) includes a second protrusion (133) disposed on the side of the flexible valve plate (131) away from the inner partition (114), the second protrusion (133) being located inside the axial second end of the limiting cylinder (1151).
8. The container lid (1) according to any one of claims 2 to 7, characterized in that, The cap includes an outer cylinder (111) and an outer top wall (113) connected to the first axial end of the outer cylinder (111), and the mounting part (11A) is disposed on the outer cylinder (111); The cover body (11) also includes an inner cylinder (112), which is arranged radially and spaced inside the outer cylinder (111) along the cover body (11), and the first axial end of the inner cylinder (112) is connected to the outer top wall (113). The inner partition wall (114) is disposed inside the outer cylinder (111) and is connected to the second axial end of the inner cylinder (112); The outer cylinder (111), the inner cylinder (112), the outer top wall (113), and the inner partition wall (114) form the gas flow channel (11B). The inner cylinder (112), the outer top wall (113), and the inner partition wall (114) form the content flow channel (11C).
9. The container lid (1) according to claim 8, characterized in that, The vent (113A) is disposed on the outer top wall (113) located radially inside the outer cylinder (111) and radially outside the inner cylinder (112); and / or The contents outlet (11D) is located on the radial inner side of the inner cylinder (112) of the outer top wall (113), and the contents hole (114A) is located on the inner partition wall (114) located on the radial inner side of the inner cylinder (112).
10. The container lid (1) according to claim 8, characterized in that, The outer cylinder (111), the inner cylinder (112), and the outer top wall (113) are integrally formed, and the inner partition wall (114) is snapped into the second axial end of the inner cylinder (112); and / or The inner partition wall (114) and the axial second end of the inner cylinder (112) are sealed by a form fit; and / or The inner partition (114) includes a sealing cylinder (1141) configured to seal against the container opening (2A) when the mounting portion (11A) is connected to the container opening (2A) of the double-walled container (2); and / or A gas communication port (114B) communicating with the gas flow channel (11B) is provided on the inner partition wall (114) or between the inner partition wall (114) and the outer cylinder (111). The gas communication port (114B) is configured to communicate with the gas flow channel (11B) through the radially inner space of the outer cylinder (111) where the mounting part (11A) is provided.
11. The container lid (1) according to claim 10, characterized in that, The inner partition (114) includes a second recess (114D) that opens toward the inner cylinder (112) and a first locking portion (1142). The second axial end of the inner cylinder (112) includes a second locking part (1121). The second axial end of the inner cylinder (112) is located in the second recess (114D) and matches the shape of the second recess (114D) to achieve a seal. The first locking part (1142) engages with the second locking part (1121).
12. The container lid (1) according to any one of claims 1 to 7, characterized in that, It also includes a cover (14) configured to cooperate with the cover body (11) to openably cover the contents outlet (11D).
13. A packaging container, characterized in that, include: A double-walled container (2) includes a deformable outer shell (21) and a flexible inner liner (22) disposed within the outer shell (21) and airtightly isolated from and separable from the outer shell (21). The container opening (2A) of the double-walled container (2) communicates with the flexible inner liner (22). The outer shell (21) is provided with a gas inlet / outlet (21A) for communicating with the space between the outer shell (21) and the flexible inner liner (22). The container cap (1) according to any one of claims 1 to 12, wherein the mounting part (11A) of the cap body (11) of the container cap (1) is connected to the container opening (2A) of the double-layer container (2), the gas flow channel (11B) is connected to the gas inlet and outlet (21A), and the contents flow channel (11C) is connected to the container opening (2A).