Container closure device and components thereof, and packaging container

Abstract

A container closure device consisting of a cap component and a release component, capable of being mounted on the neck of a container, and having a transverse cutting function to release a contained material. The cap component comprises a peripheral wall structure, a barrel structure, and a channel structure; a sealing piece, a support structure, an L-shaped recess structure, and a first positioning stop snap-fit member. The release component is of a cylindrical structure and is provided with a cutting structure and a second positioning stop snap-fit member. The cap component and the release component are snap-fitted to each other by means of a snap-fit structure so as to form the container closure device. By means of mutual rotation between the cap component and the release component, the cutting structure of the release component slide from the recess structure, transversely cut a thinned connecting structure of the barrel structure to a predetermined position, and push a cut portion of the sealing piece out of the barrel structure, so as to release the material in the container closure device into a container. The present invention also provides a packaging container comprising the container closure device, a packaging composition comprising the container closure device, and an assembly method for the container closure device.

Description

A container sealing device, its components, and a packaging container

[0001] Technical Field This invention relates to the field of product packaging containers, specifically to a container closure device and its components installed on the neck of a container, and packaging containers and packaging compositions.

[0002] Background Art In many applications, such as the mixed packaging of different materials, it is often necessary to mix the individual materials with another material shortly before using the mixture. Storing products in a pre-mixed form is usually impossible or undesirable because when the products are stored as a mixture for a period of time, they may undesirably react with each other or cause a decline in the quality of the mixture. Storing two or more different materials in a product separately is more conducive to the stability, freshness, functional assurance, or other quality improvements of the product.

[0003] International patent applications WO2007 / 129116 and WO2012 / 175934 disclose a container sealing device. This device has a fluid chamber in the cover component. The opening of the fluid chamber is opened by lifting the housing and driving the plug component, thereby introducing the contents of the cover component into the container. However, the above technology or other existing technologies have the following disadvantages: (1) The outlet of the material storage and release component is small, which makes it difficult to release solid materials and viscous materials smoothly, especially amorphous block materials or viscous materials, which are difficult to release smoothly into the container; (2) When using the mixture in the container, the entire container sealing device needs to be removed from the neck of the container, so that the inner core structure of the container sealing device is exposed to the outside of the container, which is easy to cause cross-contamination or accidental contamination of the mixture in the container; (3) The container sealing device has many components, with four or more components, which need to achieve a tight seal. The sealing process involves many steps, requiring simultaneous sealing between the container sealing device and the container, between the container sealing device and the outside world, and between the container and the outside world. This makes the production and use conditions of the container sealing device harsh and the cost of commercial application high, which is not conducive to industrial production and commercial application. (4) After the material in the container sealing device is released into the bottle, the sealing device can be separated from the bottle. At this time, the material in the bottle has not been completely mixed. If the material is mixed evenly by shaking the bottle, the material will spill out of the bottle mouth, which is not convenient for consumers to use. The final mixing of the material is defective. (5) The structure of the cap component can only be used to seal liquid materials. The plug component is difficult to seal and release solid materials. The fluid chamber needs to be pressurized to release the liquid material. (6) Due to the existence of its specific plug component, after the contents are released, a lot of contents will remain in the cap component, resulting in incomplete release of contents.

[0004] Summary of the Invention To overcome the shortcomings of the prior art, the present invention provides a novel container sealing device that functions to seal, store, and release materials, and can be installed on the neck of a container to seal the opening of the neck to form a packaging container. The present invention also provides components of the container sealing device, a packaging container, and a packaging composition including the sealing device.

[0005] The container sealing device refers to a device that can be installed on the neck of a container to seal the opening of the neck of the container to form a packaging container, and the container sealing device contains materials. By twisting the container sealing device, the materials contained therein are released into the container and mixed with the materials in the container, so as to achieve the function of mixing and adjusting the contents when it is about to be used.

[0006] Specifically, the present invention adopts the following technical solution.

[0007] A container closure device includes a lid member and a release member, wherein:

[0008] The container has an open container neck and a main chamber;

[0009] The cover component has a cover structure, a cavity structure and a channel structure, and the cover structure and the cavity structure are connected together to form a ring-shaped structure.

[0010] The first end of the cavity structure is provided with a sealing plate. The first end of the cavity structure, and the part connected to the sealing plate, has a beveled structure to reduce its thickness, and is then connected to the sealing plate to form a thinned connection structure. This structural design allows the first end of the cavity structure and the sealing plate to achieve a good sealing effect through the thinned connection structure, while also facilitating the easy cutting of the thinned connection structure. Preferably, the thickness at the connection between the first end of the cavity structure and the sealing plate is 0.08mm to 0.55mm, more preferably 0.1mm to 0.45mm, and most preferably 0.2mm to 0.4mm. The cavity structure is capable of accommodating materials.

[0011] The inner wall of the sealing sheet is provided with a support structure in the form of a protrusion;

[0012] The cavity structure is provided with an L-shaped recessed structure at the connection between the cavity structure and the sealing sheet. The recessed structure is recessed from the outer wall of the first end of the cavity structure and protrudes from the inner wall of the first end of the cavity structure. The recessed structure is also recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet.

[0013] The tail end of the cavity structure is provided with a channel structure communicating with the internal space of the cavity structure. The channel structure has an opening or is open-shaped, or the channel structure can be regarded as an extension of the cavity structure. Further, a channel seal is used to seal the opening of the channel structure. The channel seal includes a sealing cap, a sealing film, or a sealing plug. For example, an easy-to-remove sealing film is installed at the tail end of the channel structure by adhesive or welding to seal the channel structure. Another example is that a rubber stopper is installed on the channel structure to seal the channel structure. When needed, the rubber stopper can be removed, punctured, or burst, for example, for sealing packaging containers of pharmaceutical injections or oral pharmaceutical liquids. Preferably, a threaded or snap-fit ​​structure is provided on the outer wall of the channel structure, and a sealing cap with a threaded or snap-fit ​​structure, such as a threaded cap or an easy-open cap, is installed on the channel structure by the threaded or snap-fit ​​structure to seal the channel structure.

[0014] The release member has a cylindrical structure, and the inner wall of the release member is provided with a cutting structure protruding from the inner wall of the release member;

[0015] The release member can be fitted onto the outer wall of the cavity structure of the cover member, and the cutting structure of the release member can be positioned within the L-shaped recess of the cavity structure. The release member and the cover member can be fastened together by a snap-fit ​​structure to form a container sealing device, and the cover member and the release member can rotate relative to each other. Specifically, the cover member is provided with a first snap-fit, and the release member is provided with a second snap-fit. By fastening the first snap-fit ​​and the second snap-fit ​​together, a container sealing device is formed. The first snap-fit ​​is located on the outer wall of the cavity structure or the inner wall of the cover structure; the second snap-fit ​​is located on the inner wall of the release member or the tail end of the release member. Alternatively, a second cylindrical structure is provided around the release member. The cylindrical structure of the release member itself can be considered as the first cylindrical structure, and the second cylindrical structure is connected to the release member to form an annular cylindrical structure. The tail end of the second cylindrical structure or the outer wall of the second cylindrical structure is provided with a second snap-fit. It can be understood that when a second cylindrical structure is provided around the release member, the second cylindrical structure is part of the release member.

[0016] The container sealing device can be installed on the container neck by an additional snap-fit ​​structure provided on the inner wall of the cover structure, and the cover member and the container neck can rotate relative to each other; or, the container sealing device can be installed on the container neck by a threaded structure or an additional snap-fit ​​structure provided on the release member, and the release member and the container neck cannot rotate relative to each other.

[0017] For example, preferably, a third buckle is provided on the inner wall of the cover structure of the cover member, and a fourth buckle is provided on the outer wall of the container neck. The third buckle and the fourth buckle are fastened together to install the container sealing device on the container neck, and the cover member and the container neck can rotate relative to each other.

[0018] Alternatively, a second cylindrical structure is provided around the release member. The second cylindrical structure is connected to the release member to form an annular structure. A fifth buckle is provided on the inner wall of the second cylindrical structure, and a fourth buckle is provided on the outer wall of the container neck. The fifth buckle and the fourth buckle are fastened together to install the container sealing device on the container neck, and the release member and the container neck cannot rotate relative to each other.

[0019] Alternatively, a second cylindrical structure is provided around the release member. The second cylindrical structure is connected to the release member to form an annular structure. A first thread is provided on the inner wall of the second cylindrical structure, and a second thread is provided on the outer wall of the container neck. The first thread and the second thread are screwed together to install the container sealing device on the container neck, and the release member and the container neck cannot rotate relative to each other.

[0020] When the cover member and the release member rotate relative to each other, the cutting structure can slide from the recessed structure and cut the thinned connecting structure of the cavity structure, so that the sealing sheet has a cut. When the cut reaches the predetermined position, the cutting structure can engage with the supporting structure on the sealing sheet, so that the cutting structure exerts a thrust on the supporting structure, pushing the cut of the sealing sheet to the outside of the cavity structure.

[0021] Specifically, the cover component is provided with a first positioning stop buckle, which is provided on: the outer wall of the cavity structure, the inner wall of the cover structure, or the inner wall at the connection between the cover structure and the cavity structure;

[0022] The release member is provided with a second positioning stop buckle, which is located on the inner wall of the release member or at the tail end of the release member. Alternatively, a second cylindrical structure is provided on the periphery of the release member, which is connected to the release member to form an annular structure. The tail end of the second cylindrical structure or the outer wall of the second cylindrical structure is provided with a second positioning stop buckle.

[0023] The first positioning stop buckle of the cover component and the second positioning stop buckle of the release component can engage with each other to play the role of positioning and preventing rotation. The positioning function can make the cutting structure of the release component exactly in the L-shaped concave structure of the cavity structure, so as to ensure that the cover component and the release component are assembled in a predetermined position, which is the starting position.

[0024] The cover member and the release member rotate relative to each other and cut through the thinned connecting structure of the cavity structure. When the cut reaches the predetermined position, the first positioning stop and the second positioning stop can engage with each other to prevent the cover member and the release member from rotating. At this time, the cutting structure can engage with the supporting structure on the sealing sheet to generate a thrust on the supporting structure, pushing the cut of the sealing sheet to the outside of the cavity structure. The material in the cavity structure can then be smoothly released into the main chamber of the container. This position is the end point of the mutual rotation.

[0025] Depending on the need, a first stop is provided on the outer wall of the release member, and a second stop is provided on the inner wall of the container neck. When the container sealing device is installed on the container neck, the first stop and the second stop can be connected to each other, so that the release member and the container neck cannot rotate relative to each other; or, a second cylindrical structure is provided around the release member, and the second cylindrical structure is connected to the release member to form an annular structure. The inner wall of the second cylindrical structure is provided with a first stop, and correspondingly, the outer wall of the container neck is provided with a second stop. When the container sealing device is installed on the container neck, the first stop and the second stop can be connected to each other, so that the release member and the container neck cannot rotate relative to each other.

[0026] The container of the present invention includes a container neck with an opening and a main body chamber. A second buckle or a second thread is provided on the outer wall of the container neck, such as a container bottle with an open neck and a neck buckle, a container bottle with an open neck and a neck thread, a packaging bag with an open neck and a neck buckle, and a packaging bag with an open neck and a neck thread.

[0027] The cutting structure provided on the release member of the present invention includes a sheet-like or arc-shaped structure with a sharp structure, such as a sheet-like structure with a spike-like, blade-like or sharp structure, so as to cut the sealing sheet.

[0028] The sealing sheet of the present invention has a raised support structure on its inner wall, including rib-like, rib-like, or arc-shaped raised structures on the inner wall of the sealing sheet, or a beveled raised structure on the inner wall of the sealing sheet; its function is that when the cutting structure cuts the sealing sheet to a predetermined position, the cutting structure and the support structure on the sealing sheet engage with each other and generate a thrust on the support structure, pushing the cut of the sealing sheet toward the outside of the cavity structure, so as to facilitate the smooth release of material in the cavity structure into the container.

[0029] The container sealing device of the present invention is installed on the neck of a container to seal the opening of the neck of the container, thereby sealing the container to form a packaging container. The cover member and the release member can rotate relative to each other, and the cover member and the container neck can rotate relative to each other.

[0030] The structure, function, and interaction of the container sealing device of the present invention:

[0031] The release component is fitted onto the outer wall of the cavity structure of the cover component, so that the first positioning stop of the cover component and the second positioning stop of the release component are connected to each other, which serves a positioning function. The cutting structure of the release component is placed in the L-shaped recess structure of the cover component. The first buckle of the cover component and the second buckle of the release component are engaged with each other. That is, the first positioning stop and the second positioning stop are in their initial engagement positions, so that the cover component and the release component are assembled in this pre-set position to form a container sealing device. The positioning function of the first positioning stop and the second positioning stop ensures that the cavity structure and the release component are in a stable position during assembly. The cutting structure of the release component is in the recess structure of the cover component, which prevents the cutting structure from accidentally puncturing or cutting the sealing piece at the beginning of the cavity structure, ensuring that the cover component and the release component are in a relatively stable position during and after assembly.

[0032] Channel seals are used to seal the openings of the channel structure, so that the material is sealed and stored in the cavity structure;

[0033] Furthermore, by connecting and engaging the third snap of the cover member or the fifth snap of the release member with the fourth snap on the container neck, the container sealing device can be installed on the container neck and the opening of the container neck can be sealed; or, by connecting the first thread of the release member with the second thread of the container neck, the container sealing device can be installed on the container neck and the opening of the container neck can be sealed.

[0034] In use, by screwing on the cover component, the cover component and the release component rotate relative to each other. The cutting structure of the release component begins to slide from the recessed structure. The cutting structure rotates around the cavity structure and performs a transverse cutting action on the thinning connecting structure of the cavity structure, creating a cut in the sealing sheet. When the cut reaches the predetermined endpoint, the first positioning stop and the second positioning stop engage with each other, preventing the cover component and the release component from rotating. At the same time, the cutting structure engages with the supporting structure on the sealing sheet, causing the cutting structure to exert a pushing force on the supporting structure, pushing the cut of the sealing sheet to the outside of the cavity structure, forming a funnel-shaped material outlet, which allows the material contained in the cavity structure to be released into the container and mixed with the material in the container. In addition, the cut sealing sheet remains connected to the wall of the recessed structure and will not fall off the cavity structure.

[0035] When the mixed material needs to be used, simply open the channel seal; the container closure device remains installed at the container neck, and the mixed material can then be used.

[0036] Preferably, the container sealing device of the present invention has a first positioning stop buckle, a recessed structure and a supporting structure on the cover member, and correspondingly, a second positioning stop buckle and a cutting structure on the release member. This arrangement allows the sealing sheet to form a funnel-shaped material outlet after the thinning connection structure of the cavity structure is cut, which is conducive to the smooth release of the material.

[0037] In the container sealing device of the present invention, the cover member may also be provided with two first positioning stop buckles, two recessed structures, and two supporting structures distributed symmetrically. Correspondingly, the release member is provided with two second positioning stop buckles and two cutting structures distributed symmetrically. This arrangement allows the sealing sheet to form two funnel-shaped material outlets after the thinning connection structure of the cavity structure is cut, which is conducive to the smooth release of material.

[0038] The "symmetrically distributed" nature of this invention refers to the structure's positional distribution with the central axis of its surrounding circumferential structure or component as the axis of symmetry, arranged according to a symmetrical or arrayed structure. For example, with the central axis of the cylindrical structure of the cover or cavity structure as the axis of symmetry, two first positioning stop latches, two recessed structures, and two supporting structures are provided according to a symmetrical or arrayed structure. Similarly, with the central axis of the cylindrical structure of the release component itself as the axis of symmetry, two second positioning stop latches and two cutting structures are provided according to a symmetrical or arrayed structure.

[0039] Furthermore, the container sealing device of the present invention can achieve or satisfy different requirements for screwing release method, screwing direction, usage method and usage function by changing the relative position between the supporting structure and the recessed structure of the cover member, changing the position of the first positioning stop buckle and the second positioning stop buckle when initially engaged, and changing the direction of mutual rotation between the cover member and the release member, that is, changing the screwing direction, thereby changing the direction of the cutting structure when cutting the thinning connecting structure.

[0040] The container sealing device and its packaging container of the present invention require that the various structures be mutually sealed or airtight. This can be achieved by tightly fitting the components or structures together, or by setting a tight-fitting ring. In particular, the structure with a tight-fitting ring on a plastic component is in close contact with another component. By utilizing the elastic deformation of the plastic material and the tight fit of the tight-fitting ring structure, the sealing effect between the two components in contact is achieved.

[0041] For example, the sealing between the lid member and the opening of the container neck can be achieved by the outer wall of the cavity structure and the inner wall of the container neck making close contact; or, a tight-fitting ring structure can be provided on the inner wall of the lid structure of the lid member, or on the inner wall at the connection between the lid structure and the cavity structure. The tight-fitting ring structure is cylindrical and achieves a sealing effect through close contact between the tight-fitting ring structure and the inner wall of the container neck. This close-fitting structure can maintain a sealing effect even when the lid member and the container neck rotate.

[0042] For example, the sealing between the cover component and the release component can be achieved by having the release component in close contact with the outer wall of the cavity structure.

[0043] Alternatively, the tail end of the release member is provided with a tight-closing ring structure, and the inner wall of the cover structure of the cover member or the inner wall at the connection between the cover structure and the cavity structure is also provided with a tight-closing ring structure. The tight-closing ring structure is cylindrical, and the sealing effect is achieved through the tight contact between the two tight-closing rings. This tight-contact structure can maintain the sealing effect even when the release member and the cover member rotate.

[0044] Alternatively, the outer wall of the second cylindrical structure of the release member and the inner wall of the cover structure of the cover member are in close contact to achieve a seal between the cover member and the release member.

[0045] For example, the sealing between the release member and the opening of the container neck can be achieved by the outer wall of the release member and the inner wall of the container neck making close contact; or, the inner wall of the second cylindrical structure of the release member and the outer wall of the container neck making close contact can achieve the sealing between the release member and the opening of the container neck.

[0046] On the other hand, sealing gaskets or sealing rings can be used to seal or seal each other. The sealing gaskets or sealing rings include using methods such as injection molding, coating, or dripping to coat rubber materials onto one of the components or structures that are in contact with each other. Alternatively, the sealing gaskets or sealing rings can be made into separate rubber accessories and then installed on one of the components or structures that are in contact with each other to achieve sealing or sealing between the components or structures that are in contact with each other.

[0047] The container sealing device of the present invention is made of polymer material by injection molding. The cover component is preferably made of polyethylene (PE) material by injection molding, and the release component is preferably made of polypropylene (PP) material by injection molding; or the cover component is preferably made of polymer material with a hardness lower than that of the release component by injection molding.

[0048] Specifically, when the cover component is prepared by injection molding, the injection gate of the cover component is located on the inner wall or outer wall of the sealing sheet of the cavity structure. Preferably, the injection gate of the cover component is located at the center of the inner wall or the center of the outer wall of the sealing sheet of the cavity structure.

[0049] Based on the structural characteristics of the cover component of the present invention, under the same conditions of injection molding process, thickness of the connection between the sealing sheet and the first end of the cavity structure, and structural size, the injection gate of the cover component is set at the center of the inner wall or the center of the outer wall of the sealing sheet. The cover component produced by injection molding can achieve a 100% pass rate for the key sealing structure between the first end of the cavity structure and the sealing sheet, which is connected by thinning.

[0050] The container of the present invention includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with a buckle or thread, and the inner wall of the container neck is also provided with a blocking structure as needed, such as a container bottle with an open neck, a neck buckle and a neck blocking, a container bottle with an open neck and a neck thread, a packaging bag with an open neck, a neck buckle and a neck blocking, etc., including containers made of polymer materials, metal, glass or ceramics, preferably the container is a packaging bottle made of polymer materials, such as a plastic bottle made of polyethylene terephthalate (PET), polycarbonate (PC) or its derivatives, polystyrene (PS), polypropylene (PP) or polyethylene (PE).

[0051] Explanation of the concepts of terms related to this invention.

[0052] The packaging container refers to a container composition formed by installing a container closure device on the neck of the container, wherein the main chamber of the container can hold materials, and the container closure device can hold other materials, and the two materials are independent of each other.

[0053] The term "component" in this invention refers to a component or unit that constitutes a product.

[0054] The concepts of "head end" and "tail end" in this invention refer to the container sealing device or its components, as well as various structures. The head end of these components refers to the end closest to the bottom of the container when the container sealing device is installed on the neck of the container, while the tail end refers to the other end of the container.

[0055] The "buckle" and "block" described in this invention are functional structures in the form of ribs, ribs, sheet-like structures or groove-like structures, or structures formed by a combination of these forms. The "buckle" has the function of connecting and fastening, and the "block" has the function of connecting, matching and blocking.

[0056] The term "structure" as used in this invention refers to a component or structural unit, or, "structure" characterizes the inherent morphological features of a component or structural unit.

[0057] The concepts of "connection" and "linkage" used in this invention are as follows: "connection" refers to the structural relationship between the structures on the same component, or "connection" refers to the mutual contact, matching and joining, or matching and snapping between different components or parts; "linkage" refers to connecting, fixing and combining together, or forming an integral part by connecting, fixing and combining together.

[0058] The "L-shaped concave structure" described in this invention refers to a concave structure that is recessed from the outer wall of the first end of the cavity structure and the outer wall of the sealing sheet and protrudes from the inside of the cavity structure, so that the concave structure appears to be "L" shaped from the outside.

[0059] The concept of "transverse cutting" in this invention refers to the meaning of "transverse slicing". Specifically, this invention takes the central axis direction of the cavity structure as the longitudinal direction and the plane direction of the sealing sheet as the transverse direction, or the direction perpendicular to the central axis of the cavity structure as the transverse direction; the slicing structure rotates around the cavity structure, and there is no longitudinal displacement between the release component and the cavity structure, but only transverse rotation, and the thinning connection structure of the cavity structure is sliced.

[0060] The term "component" as used in this invention refers to a unit that can be separated from a product or a component, or, "component" refers to a product unit formed by assembling together; "component" and "component" sometimes have the same concept.

[0061] The container sealing device described in this invention addresses situations where certain structures face significant challenges in production, such as injection molding, resulting in high difficulty, low production efficiency, complex material filling and sealing processes, and high production costs. It also addresses situations where injection molding is insufficient to realize the desired structure. Furthermore, to meet the needs of different industrial designs, the various structures described in this invention can be obtained through the assembly, snap-fit ​​connection, fixing, or welding of individual parts. Undoubtedly, the container sealing device described in this invention, regardless of the method of assembly or assembly, falls within the scope of protection outlined in this invention.

[0062] Specifically, the release component described in this invention can also be installed and fixed on the neck of the container, and then the cover component is installed on the neck of the container to match the release component and form the container sealing device and packaging container of this invention. This technical solution also falls within the protection scope of this invention.

[0063] Specifically, the cutting structure and the second positioning stop buckle of the release member described in this invention can be located at the neck of the container. For example, the cutting structure can be located on the inner wall of the container neck, and a fourth buckle can be located on the outer wall of the container neck. The second positioning stop buckle can be located on either the inner or outer wall of the container neck. The cap member is then installed at the neck of the container, matching the cutting structure and the second positioning stop buckle to form the container sealing device and packaging container of this invention. This technical solution also falls within the protection scope of this invention.

[0064] In another aspect, the present invention also provides components of a container sealing device, namely a cover component and a release component. The cover component and release component of the container sealing device have the technical features described above.

[0065] Furthermore, the present invention also provides a packaging container, which is composed of the container sealing device described in the present invention installed on the container neck. The container includes a container neck with an opening and a main body chamber. The outer wall of the container neck is provided with a snap or thread, and the inner wall of the container neck is provided with a blocking structure as needed. The container sealing device is installed on the container neck by another snap structure provided on the inner wall of the cover structure, and the cover member and the container neck can rotate relative to each other. Alternatively, the container sealing device is installed on the container neck by a thread structure or another snap structure provided on the release member, and the release member and the container neck cannot rotate relative to each other.

[0066] Furthermore, the present invention also provides a packaging composition comprising two materials, a channel seal, and the container closure device and container described in the present invention. The container includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with a snap or thread. The container closure device is installed on the container neck via a further snap structure provided on the inner wall of the cover structure, and the cover member and the container neck are rotatable relative to each other. Alternatively, the container closure device is installed on the container neck via a threaded structure or another snap structure provided on a release member, and the release member and the container neck are not rotatable relative to each other. The channel seal seals the opening of the channel structure and includes a sealing cap, a sealing film, or a sealing plug. The main body chamber of the container contains one material, and the cavity structure of the container closure device contains another material, and the two materials are sealed independently. Preferably, at least one of the two materials is a liquid.

[0067] As needed, a first stop is provided on the outer wall of the release member, and a second stop is provided on the inner wall of the container neck. When the container sealing device is installed on the container neck, the first stop and the second stop can be connected to each other, so that the release member and the container neck cannot rotate relative to each other.

[0068] Alternatively, as needed, a second cylindrical structure can be provided around the release member. The second cylindrical structure is connected to the release member to form an annular structure. A first stop is provided on the inner wall of the second cylindrical structure, and a second stop is provided on the outer wall of the container neck. The container sealing device is installed on the container neck. The first stop and the second stop can be connected to each other so that the release member and the container neck cannot rotate relative to each other.

[0069] Furthermore, the present invention provides a method for assembling the container sealing device, packaging container, or packaging composition, the assembly method comprising:

[0070] (1) Provide the following components, including: a cover member, a release member, a channel seal, and a container having an opening in the container neck and a main chamber;

[0071] (2) Assembly of container sealing device: Install the release component and fit it on the outer wall of the cavity structure of the cover component, so that the cutting structure of the release component is in the L-shaped concave structure. By using pressure, the release component and the cover component can be fastened together by the snap-fit ​​structure, and the cover component and the release component can be assembled together to form a container sealing device.

[0072] (3) Filling of materials in container sealing device: The material is filled into the cavity structure through the opening of the channel structure of the cover component, and the opening of the channel structure is sealed by the channel seal to seal and store the material in the cavity structure.

[0073] Furthermore, the container closure device can be installed on the container neck via an additional snap-fit ​​structure provided on the inner wall of the cover structure, or via a threaded structure or an additional snap-fit ​​structure provided on the release member.

[0074] Alternatively, the assembly method includes:

[0075] (1) Provide the following components, including: a cover member, a release member, a channel seal, and a container having an opening in the container neck and a main chamber;

[0076] (2) Filling the material in the cover component: The material is filled into the cavity structure through the opening of the channel structure of the cover component. The opening of the channel structure is sealed by the channel seal to seal the material and store it in the cavity structure.

[0077] (3) Assembly of container sealing device: Install the release component and fit it on the outer wall of the cavity structure of the cover component, so that the cutting structure of the release component is in the L-shaped concave structure. By using pressure, the release component and the cover component can be fastened together by the snap-fit ​​structure, and the cover component and the release component can be assembled together to form a container sealing device.

[0078] Furthermore, the container closure device can be installed on the container neck via an additional snap-fit ​​structure provided on the inner wall of the cover structure, or via a threaded structure or an additional snap-fit ​​structure provided on the release member.

[0079] The main chamber of the container contains a first material, and the cavity structure of the container sealing device contains a second material. Before the container sealing device is installed on the neck of the container, the first material is filled into the main chamber of the container through the opening of the container.

[0080] Furthermore, the container sealing device and its packaging container and packaging composition provided by the present invention are applicable in the preparation or packaging and storage of the following products: food or beverages, alcoholic beverages, health foods, foods for special medical purposes, pharmaceuticals, medical devices, hygiene products, cosmetics or daily necessities, especially in the packaging and storage of beverages, alcoholic beverages, health foods, foods for special medical purposes, pharmaceuticals, medical devices, hygiene products, cosmetics or daily necessities containing liquid materials.

[0081] The container sealing device and its packaging container described in this invention can be widely used in the packaging of all materials that require independent storage and can be mixed and prepared on the spot. Compared with the prior art, the container sealing device and its packaging container of this invention have the following innovative features.

[0082] Firstly, the inventive structure of the container sealing device of the present invention for transverse material release has a sealing sheet that is a complete plane. The connection point of the thinning link connected to the sealing sheet is on the same horizontal plane, and there is no height difference between the sealing sheet and the thinning link. This structural arrangement has the following innovative features:

[0083] (1) It ensures that the cutting process is smooth during the use of the container sealing device, and that the sealing sheet does not deform or curl after cutting, thus ensuring the smooth release of materials in the cavity structure.

[0084] (2) It enhances the reliability of quality control of the structural sealing of the thinning connection during the injection molding process.

[0085] (3) After the thinning connection structure of the cavity structure is cut, the cut of the sealing sheet is pushed to the outside of the cavity structure by the support and pressure structure. The sealing sheet is still connected to the wall of the concave structure, forming a funnel-shaped material outlet. The size of the material release opening in the cavity is controllable, with accurate and stable operation and controllability. It can also realize the smooth release of solid materials and viscous materials. In particular, amorphous block materials, larger solid materials or viscous materials can be smoothly released into the container.

[0086] (4) During the use of the container sealing device, the sealing sheet is cut by a sharp structure. The cavity structure is opened by the cutting force. Since the sealing sheet is a complete plane, there is no difference in position between the sealing sheet and the thinning connection structure. This makes the required twisting force when the sealing sheet is cut small, uniform and gentle. The twisting process is well controlled, and it can be easily used by the elderly, children, women and other people with weak hand twisting force.

[0087] Secondly, the container sealing device of the present invention, after the channel sealing element seals the opening of the channel structure, the container sealing device is an independent sealing unit. The sealing performance of the container sealing device is determined only by the sealing link between the opening of the channel structure and the channel sealing element. This is the only control link for the sealing performance of the container sealing device, which is beneficial to the control of the sealing performance of the container sealing device, and also beneficial to the material filling production and quality stability of the container sealing device.

[0088] Thirdly, the container sealing device of this invention can effectively meet the sealing requirements of the container sealing device and its packaging container. During use, simply twisting the cap component causes the cutting structure of the release component to slide from the recessed structure, cutting the sealing sheet. Furthermore, only horizontal rotation occurs between the cap component and the release component, without any longitudinal displacement, ensuring a stable and tight seal between the cap component and the release component, between the release component and the container neck, and between the cap component and the container neck. Therefore, the container sealing device and its packaging container of this invention can advantageously meet the sealing requirements of the container sealing device and its packaging container in various scenarios such as static placement, transportation, and use.

[0089] Fourthly, the container sealing device of the present invention is installed at the opening of the container neck. When the release member only has the first cylindrical structure, the release member is located inside the container neck. The sealing performance of the container is determined only by the sealing link between the cover member and the container neck. It is the only control link of the container's sealing performance, which is beneficial to the control of the container's sealing performance.

[0090] Fifthly, the container sealing device of the present invention is installed at the opening of the container neck. When a second cylindrical structure is provided around the release member, the sealing performance between the release member and the opening of the container neck, and the sealing performance between the cover member and the release member, determine the sealing performance between the inside and outside of the container.

[0091] Sixthly, with the container sealing device of the present invention, when using the mixture inside the container, only the channel seal needs to be opened, without having to remove the entire container sealing device from the container neck, thus avoiding the exposure of the inner core structure of the container sealing device to the outside of the container, which could lead to cross-contamination or accidental contamination of the mixture inside the container.

[0092] Seventhly, the matching and ingeniously designed buckles, positioning stop buckles, recessed structures, sealing sheets, and the cutting method of the sealing sheets in the container sealing device of the present invention can ensure that the cover component and the release component are assembled in a predetermined position. The cutting structure of the release component is located in the recessed structure of the cover component, which avoids the cutting structure accidentally puncturing or cutting the sealing sheet at the beginning of the cavity structure, which is conducive to the realization of large-scale industrial production and stable production.

[0093] Eighthly, the container sealing device of the present invention only requires screwing on the cover component during use. The cover component and the release component rotate horizontally, and there is no longitudinal displacement between the cover component and the release component. The appearance of the container sealing device will not be changed before and after use, and the aesthetic appearance of the container sealing device and the container will not be damaged.

[0094] Ninth, it is easy to scale up industrial production. The container sealing device has only two components, making it simple to assemble and fill. It is easy to scale up industrial production, and the assembly of components, filling of materials, and installation of the container neck are simple. Moreover, the components are tight and stable after installation. Attached Figure Description

[0095] Figures 1 to 3 are schematic diagrams of the container sealing device and its packaging container in Embodiment 1 of the present invention, wherein:

[0096] Figures 1 and 2 are structural schematic diagrams of the cover component, release component, channel seal and container, respectively, and are views from two different directions;

[0097] Figure 3 is a cross-sectional view of the container sealing device assembled with the cover component, release component, and channel seal, with the container sealing device in a sealed state.

[0098] Figures 4 to 6 are schematic diagrams of the container sealing device and the container in Embodiment 2 of the present invention, wherein:

[0099] Figures 4 and 5 are structural schematic diagrams of the cover component, release component, channel seal and container, respectively, and are views from two different directions;

[0100] Figure 6 is a cross-sectional view of the container sealing device assembled with the cover component, release component, and channel seal, with the container sealing device in a sealed state.

[0101] Figures 7 to 9 are schematic diagrams of the container sealing device and the container in Embodiment 3 of the present invention, wherein:

[0102] Figures 7 and 8 are structural schematic diagrams of the cover component, release component, channel seal and container, respectively, and are views from two different directions;

[0103] Figure 9 is a cross-sectional view of a container closure device assembled with a cover component, a release component, and a channel seal, and assembled with a container, wherein the container closure device is in a sealed state.

[0104] The markings in Figures 1 to 9 are explained as follows: 1. Cover component; 101. Cover structure; 102. Cavity structure; 103. Channel structure; 104. First snap-fit; 105. Third snap-fit; 106. First positioning stop buckle; 107. Sealing sheet; 108. Thinning connection structure; 109. Supporting structure; 110. Recess structure; 11. Channel seal; 2. Release component; 201. Second snap-fit; 202. Second cylinder structure; 203. First stop; 204. First thread; 205. Second positioning stop buckle; 206. Cutting structure; 207. Locking structure; 208. Tightening ring; 3. Container; 301. Container neck; 302. Main chamber; 303. Fourth snap-fit; 304. Second stop; 305. Second thread; 306. Locking ring structure; 4. First material; 5. Second material.

[0105] In the implementation of this invention, various implementation schemes and modifications that can be made by those skilled in the art without departing from the scope and spirit of this invention are obvious and easy to carry out.

[0106] The technical solutions of the present invention, including preferred technical solutions, are further described in detail by way of accompanying drawings and examples of optional embodiments. It should be noted that any technical feature or solution in this embodiment is one or more of a variety of optional technical solutions. For the sake of brevity, this document cannot exhaustively list all alternative technical features and solutions of the present invention, nor is it convenient to emphasize that each implementation of a technical feature is one of multiple optional implementations. Therefore, those skilled in the art should understand that any technical feature or solution in this embodiment does not limit the scope of protection of the present invention. The scope of protection of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without creative effort.

[0107] Example 1. A container sealing device and its components and packaging container.

[0108] Referring to Figures 1 to 3, the container sealing device provided in this embodiment consists of a cover component 1 and a release component 2. The cover component 1 has a cover structure 101, a cavity structure 102, and a channel structure 103. The cover structure 101 and the cavity structure 102 are connected together to form an annular structure. The outer wall of the cavity structure 102 is provided with a first buckle 104 and a first positioning stop buckle 106. The inner wall of the cover structure 101 is provided with a third buckle 105. The internal space of the cavity structure 102 can accommodate materials. A sealing plate 107 is provided at the first end of the cavity structure 102. At the part where the first end of the cavity structure 102 is connected to the sealing plate 107, a slope structure is provided to reduce its thickness. Then, it is connected to the sealing plate 107 to form a thinning connection structure 108. The thickness at the connection between the first end of the cavity structure 102 and the sealing plate 107 is 0.1 mm to 0.45 mm, preferably 0.2 mm to 0.4 mm.

[0109] The inner wall of the sealing sheet 107 is provided with a support structure 109 in the form of a protrusion, and the cavity structure 102 and the sealing sheet 107 are provided with an L-shaped recess structure 110. The recess structure 110 is recessed from the outer wall of the first end of the cavity structure 102 and protrudes from the inner wall of the first end of the cavity structure 102. The recess structure 110 is also recessed from the outer wall of the sealing sheet 107 and protrudes from the inner wall of the sealing sheet 107.

[0110] The end of the cavity structure 102 is provided with a channel structure 103. The channel structure 103 is open and communicates with the internal space of the cavity structure 102, as shown in Figures 1 to 3. The outer wall of the channel structure 103 is provided with threads. Furthermore, a channel seal 11 is used to seal the opening of the channel structure 103. As shown in the figure, the channel seal 11 is a threaded cap. The threaded cap is tightened on the channel structure 103 to seal the opening of the channel structure 103.

[0111] The release component 2 has a cylindrical structure. The inner wall of the release component 2 is provided with a second buckle 201, a second positioning stop buckle 205, and a cutting structure 206. The cutting structure 206 has a sharp sheet-like or arc-shaped structure and protrudes from the inner wall of the release component 2. The outer wall of the release component 2 is provided with a first stop 203.

[0112] The release member 2 can be fitted onto the outer wall of the cavity structure 102 and can place the cutting structure 206 in the recessed structure 110. The cover member 1 and the release member 2 can rotate relative to each other.

[0113] The container 3 has an open container neck 301 and a main body chamber 302, and a fourth buckle 303 is provided on the outer wall of the container neck 301, and a second stop 304 is provided on the inner wall of the container neck 301.

[0114] In this embodiment, the cover component 1 and the release component 2 can be assembled together to form a container sealing device. The release component 2 is sleeved on the outer wall of the cavity structure 102, so that the second positioning stop buckle 205 and the first positioning stop buckle 106 are connected to each other to play a positioning role, and the cutting structure 206 of the release component 2 is placed in the recessed structure 110. The cover component 1 and the release component 2 can be assembled in a preset position, ensuring that the cavity structure 102 and the release component 2 are in a stable position during assembly, preventing the cutting structure 206 from accidentally puncturing or cutting the sealing sheet 107, and ensuring that the cover component 1 and the release component 2 are in a relatively stable position during and after assembly. The cover component 1 and the release component 2 can be assembled together to form a container sealing device by the second buckle 201 and the first buckle 104 engaging with each other.

[0115] The first stop 203 of the release member 2 can be connected to the second stop 304 on the container neck 301, so that the release member 2 and the container neck 301 cannot rotate relative to each other.

[0116] The third buckle 105 of the cover member 1 can be connected to the fourth buckle 303 on the container neck 301, and the cover member 1 and the container neck 301 can rotate relative to each other.

[0117] The assembly method of the container sealing device in this embodiment includes:

[0118] The release component 2 is installed and fitted onto the outer wall of the cavity structure 102, so that the first positioning stop buckle 106 and the second positioning stop buckle 205 are connected, and the cutting structure 206 is placed in the L-shaped recessed structure 110. By applying pressure and utilizing the deformation of the materials of the cavity structure 102 and the release component 2, the first buckle 104 and the second buckle 201 are fastened together, so that the cover component 1 and the release component 2 can be assembled together to form the container sealing device of this embodiment, and the cover component 1 and the release component 2 can rotate relative to each other.

[0119] Furthermore, the second material 5 is filled into the cavity structure 102 through the opening of the channel structure 103 of the cover member 1, and the opening of the channel structure 103 is sealed by the threaded cap of the channel seal member 11, so that the second material 5 is sealed and stored in the cavity structure 102.

[0120] Furthermore, the container sealing device is placed on the container neck 301. By applying pressure and utilizing the deformation of the material of the cover structure 101, the third buckle 105 and the fourth buckle 303 are fastened together, and the first stop 203 and the second stop 304 are connected. Thus, the container sealing device can be installed on the container neck 301 to form a packaging container.

[0121] The main chamber 302 of the container 3 contains the first material 4, and the cavity structure 102 contains the second material 5. Before the container sealing device is installed on the container neck 301, the first material 4 is filled into the main chamber 302 of the container through the opening of the container 3.

[0122] In this embodiment, the container sealing device is installed on the container neck 301. The outer wall of the cavity structure 102 is tightly fitted with the inner wall of the container neck 301, or a tight-fitting ring or sealing strip structure is provided on the outer wall of the cavity structure 102. The tight-fitting ring or sealing strip structure is tightly fitted with the inner wall of the container neck 301 to seal the neck opening of the container 3. The cover member 1 and the release member 2 can rotate relative to each other.

[0123] In use, by screwing on the cover component 1, the cover component 1 and the release component 2 rotate relative to each other. The cutting structure 206 begins to slide from the recess structure 110, that is, it begins to slide from the starting position. The cutting structure 206 performs a transverse cutting action on the thinning connecting structure 108 around the cavity structure 102, causing the sealing sheet 107 to have a cut. When it cuts to the predetermined position, that is, the end position, the first positioning stop buckle 106 and the second positioning stop buckle 205 engage with each other to prevent the cover component 1 and the release component 2 from rotating. At the same time, the cutting structure 206 engages with the supporting structure 109 to push the cut of the sealing sheet 107 to the outside of the cavity structure 102, forming a funnel-shaped material outlet, so that the second material 5 can be released into the container 3 and mixed with the first material 4, thus achieving the purpose of sealing, storing and releasing the material in the cavity structure 102. In addition, the sealing sheet 107 after being cut remains connected to the wall of the recess structure 110 and will not fall off the cavity structure 102.

[0124] When the mixed material needs to be used, simply unscrew the threaded cap of the channel seal 11. The container closure device will still be installed on the container neck, and the mixed material can then be used.

[0125] Example 2. A container sealing device and its components and packaging container.

[0126] Referring to Figures 4 to 6, the container sealing device provided in this embodiment consists of a cover component 1 and a release component 2. The cover component 1 has a cover structure 101, a cavity structure 102, and a channel structure 103. The cover structure 101 and the cavity structure 102 are connected together to form an annular structure. The outer wall of the cavity structure 102 is provided with a first buckle 104 and a first positioning stop buckle 106. The inner wall of the cover structure 101 is provided with a third buckle 105. The internal space of the cavity structure 102 can accommodate materials. A sealing plate 107 is provided at the first end of the cavity structure 102. At the part where the first end of the cavity structure 102 is connected to the sealing plate 107, a slope structure is provided to reduce its thickness. Then, it is connected to the sealing plate 107 to form a thinning connection structure 108. The thickness at the connection between the first end of the cavity structure 102 and the sealing plate 107 is 0.1 mm to 0.45 mm, preferably 0.2 mm to 0.4 mm.

[0127] The inner wall of the sealing sheet 107 is provided with a support structure 109 in the form of a protrusion, and the cavity structure 102 and the sealing sheet 107 are provided with an L-shaped recess structure 110. The recess structure 110 is recessed from the outer wall of the first end of the cavity structure 102 and protrudes from the inner wall of the first end of the cavity structure 102. The recess structure 110 is also recessed from the outer wall of the sealing sheet 107 and protrudes from the inner wall of the sealing sheet 107.

[0128] The end of the cavity structure 102 is provided with a channel structure 103. The channel structure 103 is open and communicates with the internal space of the cavity structure 102. The channel structure 103 can be regarded as an extension of the cavity structure 102 or as an extension of the cover structure 101, as shown in Figures 4 to 6. The outer walls of the channel structure 103 and the cover structure 101 are provided with threads.

[0129] Furthermore, a channel seal 11 is used to seal the opening of the channel structure 103, as shown in the figure. The channel seal 11 is a threaded cap. The threaded cap is tightened onto the channel structure 103 to seal the opening of the channel structure 103.

[0130] The release component 2 has a cylindrical structure. The inner wall of the release component 2 is provided with a second buckle 201, a second positioning stop buckle 205, and a cutting structure 206. The cutting structure 206 has a sharp sheet-like or arc-shaped structure and protrudes from the inner wall of the release component 2. The outer wall of the release component 2 is provided with a first stop 203.

[0131] The release member 2 can be fitted onto the outer wall of the cavity structure 102 and can place the cutting structure 206 in the recessed structure 110. The cover member 1 and the release member 2 can rotate relative to each other.

[0132] The container 3 has an open container neck 301 and a main body chamber 302, and a fourth buckle 303 is provided on the outer wall of the container neck 301, and a second stop 304 is provided on the inner wall of the container neck 301.

[0133] In this embodiment, the cover component 1 and the release component 2 can be assembled together to form a container sealing device. The release component 2 is sleeved on the outer wall of the cavity structure 102, so that the second positioning stop buckle 205 and the first positioning stop buckle 106 are connected to each other to play a positioning role, and the cutting structure 206 of the release component 2 is placed in the recessed structure 110. The cover component 1 and the release component 2 can be assembled in a preset position. The cover component 1 and the release component 2 can be assembled together to form a container sealing device by the second buckle 201 and the first buckle 104 being fastened together.

[0134] The first stop 203 of the release member 2 can be connected to the second stop 304 on the container neck 301, so that the release member 2 and the container neck 301 cannot rotate relative to each other.

[0135] The third buckle 105 of the cover member 1 can be connected to the fourth buckle 303 on the container neck 301, and the cover member 1 and the container neck 301 can rotate relative to each other.

[0136] The assembly method of the container sealing device in this embodiment includes:

[0137] The second material 5 is filled into the cavity structure 102 through the opening of the channel structure 103 of the cover member 1. The channel seal 11, i.e. the threaded cap, is tightened on the channel structure 103 to seal the opening of the channel structure 103, so that the second material 5 is sealed and stored in the cavity structure 102.

[0138] The release component 2 is installed and fitted onto the outer wall of the cavity structure 102, so that the first positioning stop buckle 106 and the second positioning stop buckle 205 are connected, and the cutting structure 206 is placed in the L-shaped recessed structure 110. By applying pressure and utilizing the deformation of the materials of the cavity structure 102 and the release component 2, the first buckle 104 and the second buckle 201 are fastened together, so that the cover component 1 and the release component 2 can be assembled together to form the container sealing device of this embodiment, and the cover component 1 and the release component 2 can rotate relative to each other.

[0139] Furthermore, the container sealing device is placed on the container neck 301. By applying pressure and utilizing the deformation of the material of the cover structure 101, the third buckle 105 and the fourth buckle 303 are fastened together, and the first stop 203 and the second stop 304 are connected. Thus, the container sealing device can be installed on the container neck 301 to form a packaging container.

[0140] The main chamber 302 of the container 3 contains the first material 4, and the cavity structure 102 contains the second material 5. Before the container sealing device is installed on the container neck 301, the first material 4 is filled into the main chamber 302 of the container through the opening of the container 3.

[0141] In this embodiment, the container sealing device is installed on the container neck 301. The outer wall of the cavity structure 102 is tightly fitted with the inner wall of the container neck 301, or the inner wall of the cover structure 101 is tightly fitted with the outer wall of the container neck 301, thereby sealing the neck opening of the container 3, so that the container is sealed to form a packaging container, and the cover member 1 and the release member 2 can rotate relative to each other.

[0142] In use, the threaded cap is screwed on along the tightening direction of the channel seal 11, i.e., the threaded cap. Since the threaded cap is tightened onto the channel structure 103 at this time, screwing on the threaded cap will drive the cover member 1. It is equivalent to screwing on the cover member 1. The cover member 1 and the release member 2 rotate relative to each other. The cutting structure 206 starts to slide from the recess structure 110, i.e., it starts to slide from the starting position. The cutting structure 206 performs a transverse cutting action on the thinning connecting structure 108 around the cavity structure 102, causing the sealing plate 107 to make a cut. When it cuts to the predetermined position, i.e. the end position, the first positioning stop buckle is engaged. The sealing plate 106 engages with the second positioning stop 205 to prevent rotation between the cover member 1 and the release member 2. At the same time, the cutting structure 206 engages with the supporting structure 109 to push the cut of the sealing plate 107 toward the outside of the cavity structure 102, forming a funnel-shaped material outlet, which allows the second material 5 to be released into the container 3 and mixed with the first material 4, thus achieving the purpose of sealing, storing and releasing the material in the cavity structure 102. In addition, the cut sealing plate 107 remains connected to the wall of the recess structure 110 and will not fall off the cavity structure 102.

[0143] When the mixed material is to be used, simply unscrew the threaded cap of the channel seal 11 in the reverse direction. The container closure device will still be installed on the container neck, and the mixed material can then be used.

[0144] Example 3. A container sealing device and its components and packaging container.

[0145] Referring to Figures 7 to 9, the container sealing device provided in this embodiment consists of a cover component 1 and a release component 2. The cover component 1 has a cover structure 101, a cavity structure 102, and a channel structure 103. The cover structure 101 and the cavity structure 102 are connected together to form an annular structure. A first positioning stop buckle 106 is provided on the outer wall of the cavity structure 102, and a first buckle 104 is provided on the inner wall of the cover structure 101. The internal space of the cavity structure 102 can accommodate materials. A sealing plate 107 is provided at the first end of the cavity structure 102. At the part where the first end of the cavity structure 102 is connected to the sealing plate 107, a slope structure is provided to reduce its thickness. Then, it is connected to the sealing plate 107 to form a thinning connection structure 108. The thickness at the connection between the first end of the cavity structure 102 and the sealing plate 107 is 0.1 mm to 0.45 mm, preferably 0.2 mm to 0.4 mm.

[0146] The inner wall of the sealing sheet 107 is provided with a support structure 109 in the form of a protrusion, and the cavity structure 102 and the sealing sheet 107 are provided with an L-shaped recess structure 110. The recess structure 110 is recessed from the outer wall of the first end of the cavity structure 102 and protrudes from the inner wall of the first end of the cavity structure 102. The recess structure 110 is also recessed from the outer wall of the sealing sheet 107 and protrudes from the inner wall of the sealing sheet 107.

[0147] The end of the cavity structure 102 is provided with a channel structure 103. The channel structure 103 is open and communicates with the internal space of the cavity structure 102. The channel structure 103 can be regarded as an extension of the cavity structure 102 or as an extension of the cover structure 101, as shown in Figures 7 to 9. The outer walls of the channel structure 103 and the cover structure 101 are provided with threads. Furthermore, a channel seal 11 is used to seal the opening of the channel structure 103. As shown in the figure, the channel seal 11 is a threaded cap. Tightening the threaded cap on the channel structure 103 can seal the opening of the channel structure 103.

[0148] The release component 2 has a cylindrical structure. The inner wall of the release component 2 is provided with a second positioning stop buckle 205 and a cutting structure 206. The cutting structure 206 has a sharp sheet-like or arc-shaped structure and protrudes from the inner wall of the release component 2. The outer periphery of the release component 2 is provided with a second cylindrical structure 202. The cylindrical structure of the release component 2 itself can be regarded as the first cylindrical structure. The second cylindrical structure 202 is connected to the release component to form an annular cylindrical structure. The tail end of the release component 2 is provided with a second buckle 201 and a tight-closing ring 208. The inner wall of the second cylindrical structure 202 is provided with a first thread 204 and a locking structure 207.

[0149] The release member 2 can be fitted onto the outer wall of the cavity structure 102 and can place the cutting structure 206 in the recessed structure 110. The cover member 1 and the release member 2 can rotate relative to each other.

[0150] The container 3 has an open container neck 301 and a main body chamber 302, and the outer wall of the container neck 301 is provided with a second thread 305 and a locking ring structure 306.

[0151] In this embodiment, the cover component 1 and the release component 2 can be assembled together to form a container sealing device. The release component 2 is sleeved on the outer wall of the cavity structure 102, so that the second positioning stop buckle 205 and the first positioning stop buckle 106 are connected to each other to play a positioning role, and the cutting structure 206 of the release component 2 is placed in the recessed structure 110. The cover component 1 and the release component 2 can be assembled in a preset position. The cover component 1 and the release component 2 can be assembled together to form a container sealing device by the second buckle 201 and the first buckle 104 being fastened together.

[0152] The first thread 204 of the release member 2 can be connected to the second thread 305 on the container neck 301, and the locking structure 207 can be connected to the locking ring structure 306 on the container neck 301, so that the release member 2 is fixed on the container neck 301 and the release member 2 and the container neck 301 cannot rotate relative to each other.

[0153] The assembly method of the container sealing device in this embodiment includes:

[0154] The second material 5 is filled into the cavity structure 102 through the opening of the channel structure 103 of the cover member 1. The channel seal 11, i.e. the threaded cap, is tightened on the channel structure 103 to seal the opening of the channel structure 103, so that the second material 5 is sealed and stored in the cavity structure 102.

[0155] The release component 2 is installed and fitted onto the outer wall of the cavity structure 102, so that the first positioning stop buckle 106 and the second positioning stop buckle 205 are connected, and the cutting structure 206 is placed in the L-shaped recessed structure 110. By applying pressure, the first buckle 104 and the second buckle 201 are fastened together, so that the cover component 1 and the release component 2 can be assembled together to form the container sealing device of this embodiment, and the cover component 1 and the release component 2 can rotate relative to each other.

[0156] Furthermore, the container sealing device is placed on the container neck 301, and the second cylindrical structure 202 is screwed on so that the first thread 204 and the second thread 305 are tightened and connected. The locking structure 207 and the locking ring structure 306 are engaged together, so that the release component 2 is fixed on the container neck 301. The container sealing device is then installed on the container neck 301, thus forming a packaging container.

[0157] The main chamber 302 of the container 3 contains the first material 4, and the cavity structure 102 contains the second material 5. Before the container sealing device is installed on the container neck 301, the first material 4 is filled into the main chamber 302 of the container through the opening of the container 3.

[0158] In this embodiment, the cover component 1 and the release component 2 are assembled together to form a container sealing device. The sealing ring 208 is tightly fitted to the outer wall of the cavity structure 102, or the sealing ring 208 is tightly fitted to the inner wall of the cover structure 101, so as to achieve the sealing requirements of the container sealing device to the outside.

[0159] In this embodiment, the container sealing device is installed on the container neck 301. The outer wall of the release member 2 is tightly fitted with the inner wall of the container neck 301, or a tight-fitting ring or sealing strip structure is provided on the outer wall of the release member 2. The tight-fitting ring or sealing strip structure is tightly fitted with the inner wall of the container neck 301 to seal the neck opening of the container 3. The cover member 1 and the release member 2 can rotate relative to each other.

[0160] In use, the threaded cap is screwed on along the tightening direction of the channel seal 11, i.e., the threaded cap. Since the threaded cap is tightened onto the channel structure 103 at this time, screwing on the threaded cap will drive the cover member 1. It is equivalent to screwing on the cover member 1. The cover member 1 and the release member 2 rotate relative to each other. The cutting structure 206 starts to slide from the recess structure 110, i.e., it starts to slide from the starting position. The cutting structure 206 performs a transverse cutting action on the thinning connecting structure 108 around the cavity structure 102, causing the sealing plate 107 to make a cut. When it cuts to the predetermined position, i.e. the end position, the first positioning stop buckle is engaged. The sealing plate 106 engages with the second positioning stop 205 to prevent rotation between the cover member 1 and the release member 2. At the same time, the cutting structure 206 engages with the supporting structure 109 to push the cut of the sealing plate 107 toward the outside of the cavity structure 102, forming a funnel-shaped material outlet, which allows the second material 5 to be released into the container 3 and mixed with the first material 4, thus achieving the purpose of sealing, storing and releasing the material in the cavity structure 102. In addition, the cut sealing plate 107 remains connected to the wall of the recess structure 110 and will not fall off the cavity structure 102.

[0161] When the mixed material is to be used, simply unscrew the threaded cap of the channel seal 11 in the reverse direction. The container closure device will still be installed on the container neck, and the mixed material can then be used.

[0162] Example 4. A packaging composition containing two independently sealed materials.

[0163] A packaging composition comprising a container closure device, a container 3, a first material 4, and a second material 5, wherein the container 3 has an open container neck 301 and a main body chamber 302;

[0164] The container sealing device is the container sealing device described in Embodiment 1, Embodiment 2 or Embodiment 3, and the container sealing device is installed on the neck of the container 3;

[0165] The first material 4 is located in the main chamber 302 of the container, and the second material 5 is located in the cavity structure of the cover member of the container sealing device;

[0166] At least one of the first material 4 and the second material 5 is a liquid material, preferably both the first material 4 and the second material 5 are liquids, or the first material 4 is a liquid material and the second material 5 is a solid material, or the first material 4 is a solid material and the second material 5 is a liquid material.

Claims

1. A container sealing device, comprising a lid member and a release member, characterized in that: The container has an open container neck and a main chamber; The cover component has a cover structure, a cavity structure and a channel structure, and the cover structure and the cavity structure are connected together to form an annular structure. The first end of the cavity structure is provided with a sealing plate. The first end of the cavity structure and the part connected with the sealing plate are provided with a beveled structure to reduce its thickness, and then connected with the sealing plate to form a thinning connection structure. The inner wall of the sealing sheet is provided with a support structure in the form of a protrusion; The cavity structure is provided with an L-shaped recessed structure at the connection point between the cavity structure and the sealing sheet. The recessed structure is recessed from the outer wall of the first end of the cavity structure and protrudes from the inner wall of the first end of the cavity structure. The recessed structure is also recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet. The tail end of the cavity structure is provided with a channel structure communicating with the internal space of the cavity structure. The channel structure has an opening or is open in shape. The release member has a cylindrical structure, and the inner wall of the release member is provided with a cutting structure protruding from the inner wall of the release member; The release member can be fitted onto the outer wall of the cavity structure of the cover member, and the cutting structure of the release member can be placed in the L-shaped recessed structure of the cavity structure. The release member and the cover member can be fastened together by a snap-fit ​​structure to form a container sealing device, and the cover member and the release member can rotate relative to each other. The container sealing device can be installed on the container neck by an additional snap-fit ​​structure provided on the inner wall of the cover structure, and the cover member and the container neck can rotate relative to each other; or, the container sealing device can be installed on the container neck by a threaded structure or an additional snap-fit ​​structure provided on the release member, and the release member and the container neck cannot rotate relative to each other. When the cover member and the release member rotate relative to each other, the cutting structure of the release member can slide from the recessed structure and cut the thinned connecting structure of the cavity structure, so that the sealing sheet has a cut. When the cut reaches the predetermined position, the cutting structure can engage with the supporting structure on the sealing sheet, so that the cutting structure exerts a thrust on the supporting structure, pushing the cut of the sealing sheet to the outside of the cavity structure.

2. The container sealing device according to claim 1, characterized in that: The cover component is provided with a first positioning stop buckle, which is located on: the outer wall of the cavity structure, the inner wall of the cover structure, or the inner wall at the connection between the cover structure and the cavity structure. The release member is provided with a second positioning stop buckle, which is located on the inner wall or the tail end of the release member. Alternatively, a second cylindrical structure is provided on the periphery of the release member, which is connected to the release member to form an annular structure. The tail end or outer wall of the second cylindrical structure is provided with a second positioning stop buckle. When the cover member and the release member rotate relative to each other, the cutting structure of the release member can slide from the recessed structure and cut through the thinned connecting structure of the cavity structure, causing a cut in the sealing sheet. When the cut reaches a predetermined position, the first positioning stop buckle and the second positioning stop buckle can engage with each other to prevent the cover member and the release member from rotating.

3. The container sealing device according to claim 1, characterized in that: A channel seal is used to seal the opening of the channel structure. The channel seal includes a sealing cap, a sealing membrane, or a sealing plug.

4. A container sealing device according to claim 1, characterized in that: The supporting structure with a raised structure provided on the inner wall of the sealing sheet includes a rib-like, rib-like, or arc-shaped raised structure provided on the inner wall of the sealing sheet, or a sloping raised structure provided on the inner wall of the sealing sheet. The cutting structure provided on the release member includes a sheet-like or arc-shaped structure with a sharp structure; The thickness at the junction of the first end of the cavity structure and the sealing sheet is 0.08 mm to 0.55 mm.

5. A lid component of a container sealing device, characterized in that: The cover component has a cover structure, a cavity structure and a channel structure, and the cover structure and the cavity structure are connected together to form an annular structure. The first end of the cavity structure is provided with a sealing plate. The first end of the cavity structure and the part connected with the sealing plate are provided with a beveled structure to reduce its thickness, and then connected with the sealing plate to form a thinning connection structure. The inner wall of the sealing sheet is provided with a support structure in the form of a protrusion; The cavity structure is provided with an L-shaped recessed structure at the connection between the cavity structure and the sealing sheet. The recessed structure is recessed from the outer wall of the first end of the cavity structure and protrudes from the inner wall of the first end of the cavity structure. The recessed structure is also recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet. The tail end of the cavity structure is provided with a channel structure that communicates with the internal space of the cavity structure, and the channel structure has an opening or is in the shape of an opening.

6. The lid component of a container sealing device according to claim 5, characterized in that: The cover component is provided with a first positioning stop buckle, which is located on the outer wall of the cavity structure, the inner wall of the cover structure, or the inner wall at the connection between the cover structure and the cavity structure.

7. A release component of a container sealing device, characterized in that: The release member has a cylindrical structure, and the inner wall of the release member is provided with a cutting structure protruding from the inner wall of the release member; The release member is provided with a second positioning stop buckle, which is located on the inner wall of the release member or at the tail end of the release member. Alternatively, a second cylindrical structure is provided on the periphery of the release member, which is connected to the release member to form an annular structure. The tail end of the second cylindrical structure or the outer wall of the second cylindrical structure is provided with a second positioning stop buckle.

8. The release component of a container sealing device according to claim 7, characterized in that: The release member is surrounded by a second cylindrical structure, which is connected to the release member to form an annular structure. The inner wall of the second cylindrical structure is provided with a threaded structure or another snap-fit ​​structure.

9. A packaging container, characterized in that: The packaging container is formed by mounting the container closure device of claim 1 on the container neck, the container including a container neck with an opening and a main body chamber; The container sealing device is installed on the container neck by an additional snap-fit ​​structure provided on the inner wall of the cover structure, and the cover member and the container neck can rotate relative to each other. Alternatively, the container sealing device is installed on the container neck by a threaded structure or an additional snap-fit ​​structure provided on the release member, and the release member and the container neck cannot rotate relative to each other.

10. A packaging composition, characterized in that: The packaging composition comprises two materials, a channel seal, and the container closure device and container as described in claim 1, wherein: The container includes a container neck with an opening and a main chamber; The container sealing device is installed on the container neck by an additional snap-fit ​​structure provided on the inner wall of the cover structure, and the cover member and the container neck can rotate relative to each other; or, the container sealing device is installed on the container neck by a threaded structure or an additional snap-fit ​​structure provided on the release member, and the release member and the container neck cannot rotate relative to each other; the channel seal seals the opening of the channel structure, and the channel seal includes a sealing cap, a sealing membrane, or a sealing plug; The two materials are respectively contained in the main chamber of the container and the cavity structure of the container sealing device.

11. The container sealing device of claim 1 or the assembly method of the packaging composition of claim 10, characterized in that: The assembly method includes: (1) Provide the following components, including: a cover member, a release member, a channel seal, and a container having an opening in the container neck and a main chamber; (2) Assembly of container sealing device: Install the release component and fit it on the outer wall of the cavity structure of the cover component, so that the cutting structure of the release component is in the L-shaped concave structure. By using pressure, the release component and the cover component are fastened together by the snap-fit ​​structure, and the cover component and the release component are assembled together to form a container sealing device. (3) Filling of materials in container sealing device: The material is filled into the cavity structure through the opening of the channel structure of the cover component, and the opening of the channel structure is sealed by the channel seal to seal and store the material in the cavity structure. Furthermore, the container closure device can be installed on the container neck by means of an additional snap-fit ​​structure provided on the inner wall of the cover structure, or by means of a threaded structure or an additional snap-fit ​​structure provided on the release member. Alternatively, the assembly method includes: (1) Provide the following components, including: a cover member, a release member, a channel seal, and a container having an opening in the container neck and a main chamber; (2) Filling the material in the cover component: The material is filled into the cavity structure through the opening of the channel structure of the cover component. The opening of the channel structure is sealed by the channel seal to seal the material and store it in the cavity structure. (3) Assembly of container sealing device: Install the release component and fit it on the outer wall of the cavity structure of the cover component, so that the cutting structure of the release component is in the L-shaped concave structure. By using pressure, the release component and the cover component are fastened together by the snap-fit ​​structure, and the cover component and the release component are assembled together to form a container sealing device. Furthermore, the container closure device can be installed on the container neck via an additional snap-fit ​​structure provided on the inner wall of the cover structure, or via a threaded structure or an additional snap-fit ​​structure provided on the release member.

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