A container closing device installed on the container neck, its component and packaging container

Abstract

A container closure device installed on the neck of a container, its components and a packaging container, which are composed of a cover component and a release component. The cover component has a cover surrounding structure and a cavity tube structure. The cover component is provided with a first buckle and a first positioning stop buckle, as well as a sealing sheet, a supporting structure and an L-shaped recessed chamber structure. The release component is provided with a thread or a blocking structure, a second buckle, a second positioning stop buckle and a cutting structure. The cover component and the release component rotate with each other, so that the cutting structure of the release component starts to slide from the recessed chamber structure, produces a cross-cutting effect on the thinning connection structure of the cavity tube structure to a predetermined position, and pushes the cut of the sealing sheet to the outside of the cavity tube structure, so that the material in the container closure device is released into the container. The present invention also provides a packaging container, a packaging composition, an assembly method of the container closure device and its application.

Description

Technical Field

[0001] The invention relates to the field of product packaging containers, in particular to a container closing device installed on a container neck, components thereof and a packaging container. Background Art

[0002] In many applications such as mixed packaging of different materials, it is very necessary to release each material into another material shortly before using the mixture of various materials. It is usually impossible or undesirable to store products in a pre-mixed form because when the products are stored as a mixture for a period of time, they may react with each other unexpectedly or cause the quality of the mixture to deteriorate. Common examples are, for example, two or more pharmaceutical components that have better stability and longer shelf life when not mixed than when mixed; for another example, for mixed liquid products, such as beverages, liquid medicines, special medical purpose formula foods, liquid cosmetics, liquid reagents and other products, during the shelf life of the product, two or more different materials in the product need to be stored separately to make it more conducive to product stability, freshness, functional assurance or other quality improvements.

[0003] International patent application WO2007 / 129116 and international patent application WO2012 / 175934 disclose a container closure device, in which a fluid chamber is provided in a cover member, and a plug member is driven by lifting the shell to open the opening of the fluid chamber, thereby introducing the contents in the cover member into the container; however, the above technology or other prior art solutions have the following disadvantages: (1) The outlet of the material storage and release component is small, and it is impossible to smoothly release solid materials and viscous materials, especially amorphous block materials, larger solid materials or viscous materials, which are difficult to smoothly release into the container; (2) When using the mixture in the container, the entire container closure device needs to be removed from the neck of the container, so that the inner core structure of the container closure 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 closure device needs to achieve a large number of links to achieve sealing, and it is necessary to At the same time, various sealing properties are achieved between the container closure device and the container, between the container closure device and the outside world, and between the container and the outside world, which makes the production and use conditions of the container closure device harsh, the qualified rate is low, and the cost of commercial application is high, which is not conducive to industrial production and commercial application; (4) After the material in the container closure device is released into the bottle body, the closure device can be separated from the bottle body. At this time, the material in the bottle body has not been completely mixed. If the material is mixed evenly by shaking the bottle body, the material will overflow from the bottle mouth, which is not conducive to the convenient use of consumers. There are major defects in the final mixing of the materials; (5) The structural setting of the cover component can only be used to seal liquid materials. The plug component set is difficult to seal and release solid materials, and 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 large amount of contents will remain in the cover component, resulting in incomplete release of the contents.

[0004] In addition, Chinese patent publications CN117902165A and CN118083344A respectively disclose a container sealing device including a cover member and a release member, wherein a sealing sheet is respectively arranged on the cavity structure of the release member or the cover member, and the cover member is screwed to cause longitudinal displacement of the cover member and the release member, so that the sealing sheet arranged on the cavity structure of the release member or the cover member is broken, thereby releasing the material, thereby achieving the effect of releasing the material contained in the container sealing device into the container and mixing and blending with other materials in the container. However, this technology has the following three problems. First, there is a displacement space between the cover member and the release member for longitudinal displacement. This structural feature causes defects and flaws in the close sealing between the cover member and the release member, and between the release member and the container mouth. In particular, when it is sealed in the setting state of the container mouth and neck for a long time, the sealing of the container mouth and neck cannot be guaranteed; second, when the mixture in the container is used, the entire container closure device needs to be removed from the neck of the container, so that the inner core structure of the container closure 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; third, the component with the sealing sheet has a very small range of polymer material selection, and the hardness, elongation at break and tensile strength must be limited to a certain range, otherwise the sealing sheet is difficult to be broken, and it is difficult for the elderly, children, women and other people with small hand twisting force to use it, which makes its material selection range, quality control requirements, and injection molding production precision requirements very high, which not only seriously affects the quality control requirements of the container sealing device, but also limits the industrial production of the container sealing device and the application range of the product. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a new container closure device, which has the functions of sealing, storing and releasing materials, and can be installed at the opening of the container neck to seal the opening of the container neck to form a packaging container. The present invention also provides components of the container closure device, a packaging container, and a packaging composition and application including the closure device.

[0006] The container of the present invention comprises a container neck with an opening and a main body chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck, such as a container bottle with an opening neck and a neck thread, a container bottle with an opening neck and a neck blocking structure, a packaging bag with an opening neck and a neck thread, and a packaging bag with an opening neck and a neck blocking structure;

[0007] The container closing device refers to a device that can be installed on the neck of a container to close the opening of the neck of the container to form a packaging container, and the container closing device contains materials. By screwing the container closing device, the materials contained in the device are released into the container and mixed with the materials in the container, so as to achieve the purpose of mixing and preparing the contents when it is about to be used.

[0008] Specifically, the present invention adopts the following technical solutions.

[0009] A container closure device mounted on a container neck comprises a cover member and a release member, wherein:

[0010] The container comprises an open container neck and a main body chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck.

[0011] The cover member comprises a cover surrounding structure and a cavity tube structure, wherein the cover surrounding structure and the cavity tube structure are connected together to form an annular structure, and a first buckle and a first positioning stop buckle are arranged on the cover member, wherein the first buckle is arranged on the inner wall of the cover surrounding structure, and the first positioning stop buckle is arranged on: the inner wall of the cover surrounding structure, the outer wall of the cavity tube structure, or the inner wall where the cover surrounding structure and the cavity tube structure are connected;

[0012] The head end of the cavity tube structure is provided with a sealing sheet, and the head end of the cavity tube structure and the part connected to the sealing sheet are provided with a slope structure to reduce their thickness, and then connected to the sealing sheet to form a thinning connection structure; such a structural setting enables the head end of the cavity tube structure and the sealing sheet to achieve a good sealing effect through the thinning connection structure, and is also conducive to being cut smoothly; preferably, the thickness of the head end of the cavity tube structure connected to the sealing sheet is 0.08mm-0.55mm, preferably 0.1mm-0.45mm, and most preferably 0.2mm-0.4mm; the cavity tube structure can accommodate materials;

[0013] A supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet;

[0014] An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet, wherein the recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet;

[0015] The tail end of the cavity tube structure is in an open shape; or, the tail end of the cavity tube structure is provided with a channel structure, the channel structure has an opening or is in an open shape, the channel structure is connected to the internal space of the cavity tube structure, and the channel structure can be regarded as an extension of the cavity tube structure. Further, a sealing member is used to seal the opening at the tail end of the cavity tube structure or the opening of the channel structure, so that the material is sealed and stored in the cavity tube structure; the sealing member includes a sealing cover, a sealing film or a sealing plug, and the sealing cover is preferably a threaded cover or an easy-open cover.

[0016] The release member has a first cylinder structure and a second cylinder structure, the first cylinder structure and the second cylinder structure are connected together to form a ring cylinder structure, the head end and the tail end of the second cylinder structure are both open, and the release member is provided with a thread or a blocking structure, a second buckle, a second positioning stop buckle, and a cutting structure, wherein:

[0017] The thread or the blocking structure is arranged on the inner wall of the first cylinder structure, and the thread or the blocking structure can be connected with the thread or the blocking structure on the neck of the container;

[0018] The second buckle is arranged at: the tail end of the release member, the outer wall of the first cylinder structure, the outer wall of the tail end of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected;

[0019] The second positioning stop buckle is arranged at: the tail end of the release member, the outer wall of the first cylinder structure, the outer wall of the tail end of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected;

[0020] The cutting structure is arranged on the inner wall of the second cylinder structure and protrudes from the inner wall of the second cylinder structure;

[0021] The second cylinder structure of the release member can be sleeved on the outer wall of the cavity structure of the cover member, the second positioning stop buckle of the release member and the first positioning stop buckle of the cover member can be connected to each other, and the cutting structure of the release member can be located in the L-shaped recessed chamber structure of the cavity structure;

[0022] The second buckle of the release member and the first buckle of the cover member can be buckled together to realize the assembly of the cover member and the release member to form a container closure device;

[0023] The release member and the cover member are capable of rotating relative to each other;

[0024] The thread or the blocking structure provided on the release member can be connected to the thread or the blocking structure provided on the outer wall of the container neck, so as to realize the installation of the container closure device on the container neck.

[0025] The cutting structure provided on the release member of the present invention comprises a sheet structure or an arc sheet structure with a sharp structure, such as a sheet structure or an arc sheet structure with a spike-like, blade-like or sharp structure, so that it can cut through the thinned connecting structure of the cavity structure to produce an incision on the sealing sheet.

[0026] The supporting and pressing structure in the form of a convex structure arranged on the inner wall of the sealing sheet described in the present invention includes a convex structure in the form of a rib sheet, a rib strip, or an arc sheet on the inner wall of the sealing sheet, or a convex structure in the form of an inclined surface on the inner wall of the sealing sheet; its function is that when the cutting structure of the releasing member cuts the thinning connection structure of the cavity tube structure to a predetermined position, the cutting structure and the supporting and pressing structure on the sealing sheet are engaged with each other, and a thrust is generated on the supporting and pressing structure, pushing the cutout of the sealing sheet to the outside of the cavity tube structure, so as to facilitate the smooth release of the material in the cavity tube structure to the container.

[0027] The container closing device of the present invention can be installed on the container neck to seal the opening of the container neck so as to close the container to form a packaging container, and the cover component and the release component can rotate relative to each other.

[0028] The structural functions and interactions of the container closure device of the present invention:

[0029] The cover member and the release member of the present invention can be assembled together to form a container closure device, and the second cylinder structure of the release member is sleeved on the outer wall of the cavity structure of the cover member, and the first positioning stop buckle of the cover member is connected with the second positioning stop buckle of the release member to play a positioning role, so that the cover member and the release member are assembled at a preset position, ensuring that the cavity structure and the second cylinder structure are in a stable position during assembly, and the cutting structure of the release member is in the recessed chamber structure of the cavity structure to prevent the cutting structure from accidentally puncturing or cutting the sealing sheet at the head end of the cavity structure, ensuring that the cover member and the release member are in a relatively stable position during and after assembly; the first buckle of the cover member and the second buckle of the release member are connected and buckled together, so that the cover member and the release member can be assembled together to form a container closure device, and the cover member and the release member can rotate with each other;

[0030] Furthermore, the material is filled into the cavity structure through the opening at the rear end of the cavity structure or the opening of the channel structure, and the sealing member is used to seal the opening at the rear end of the cavity structure or the opening of the channel structure, so that the material is sealed and stored in the cavity structure; further, the thread or the blocking structure on the release member is connected with the thread or the blocking structure on the container neck, so that the container closing device is installed at the opening of the container neck, and the opening of the container neck is closed;

[0031] When in use, by screwing the cover member, the cover member and the release member rotate relative to each other, the cutting structure of the release member starts to slide from the recessed chamber structure, the cutting structure rotates around the cavity tube structure, and the cutting structure produces a cross-cutting effect on the thinning connection structure of the cavity tube structure, so that the sealing sheet is cut. When the cutting reaches a predetermined position, the first positioning stop buckle and the second positioning stop buckle engage with each other to prevent the cover member and the release member from rotating. At the same time, the cutting structure and the supporting and pressing structure on the sealing sheet engage with each other, so that the cutting structure produces a thrust effect on the supporting and pressing structure, pushing the cut of the sealing sheet to the outside of the cavity tube structure to form a funnel-shaped material outlet, so that the material contained in the cavity tube structure can be released into the container and mixed with the material in the container, thereby achieving the purpose of sealing, storing and releasing the material in the cavity tube structure. In addition, the sealing sheet after cutting is still connected to the wall of the recessed chamber structure and will not fall off from the cavity tube structure.

[0032] When the mixed material is to be used, the thread on the release member and the thread on the container neck are simply unscrewed to remove the container closure device from the container neck, and the mixed material can be used;

[0033] Alternatively, when the mixed material is to be used, the seal at the rear end of the cavity structure only needs to be opened, and the container closing device is still installed on the container neck, so that the mixed material can be used.

[0034] In the container closing device described in the present invention, a first positioning stop buckle, a recessed chamber structure and a supporting and pressing structure are arranged on the cover member, and correspondingly, a second positioning stop buckle and a cutting structure are arranged on the release member. Such an arrangement enables the sealing sheet to form a funnel-shaped material outlet after the thinning connecting structure of the cavity structure is cut, which is conducive to the smooth release of the material.

[0035] In the container closure device described in the present invention, the cover member is provided with two first positioning stop buckles distributed in symmetrical positions, two recessed chamber structures distributed in symmetrical positions, and two supporting and pressing structures distributed in symmetrical positions. Correspondingly, the release member is provided with two second positioning stop buckles distributed in symmetrical positions and two cutting structures distributed in symmetrical positions. Such a setting enables the sealing sheet to form two funnel-shaped material outlets after the thinning connection structure of the cavity tube structure is cut, which is conducive to the smooth release of the material. The "distributed in symmetrical positions" described in the present invention refers to the structure being arranged in a position distributed according to a symmetrical structure or array structure with the central axis of the circumferential body structure or circumferential body component in which it is located as the symmetrical axis. For example, with the central axis of the cover surrounding structure of the cover member or the cylinder structure of the cavity tube structure as the symmetrical axis, two first positioning stop buckles, two recessed chamber structures, and two supporting and pressing structures are arranged according to the arrangement of the symmetrical structure or array structure. Similarly, with the central axis of the first cylinder structure or the second cylinder structure of the release member as the symmetrical axis, two second positioning stop buckles and two cutting structures are arranged according to the arrangement of the symmetrical structure or array structure.

[0036] In the container closure device of the present invention, the first cylinder structure of the release member is located inside the cover surrounding structure of the cover member; or, the first cylinder structure of the release member is located at the lower part of the cover surrounding structure of the cover member, so that the first cylinder structure of the release member and the cover surrounding structure of the cover member form a two-layer structure. The relative position between the first cylinder structure of the release member and the cover surrounding structure of the cover member not only constitutes the appearance of the container closure device, but also involves the use of the container closure device, so as to realize and meet the use method of the container closure device and the different production operation requirements of industrial mass production.

[0037] In addition, the container closing device of the present invention can achieve or meet different requirements of screwing release methods, screwing directions, usage methods and usage functions by changing the relative position between the supporting structure of the cover member and the recessed chamber structure, changing the positions of the first positioning stop buckle and the second positioning stop buckle when they are initially engaged, and changing the direction of mutual rotation between the cover member and the releasing member, that is, changing the screwing direction, and then changing the direction of the cutting structure when cutting the thinned connecting structure of the cavity structure.

[0038] The container closure device of the present invention is installed at the opening of the container neck. The sealing between the release member and the opening of the container neck, and the sealing between the cover member and the release member, determine the sealing between the inside and outside of the container. The sealing between the release member and the opening of the container neck, the present invention can adopt:

[0039] The outer wall of the second cylindrical structure of the release member is in close contact with the inner wall of the container neck to achieve sealing between the release member and the opening of the container neck.

[0040] The sealing between the cover member and the release member can be achieved by:

[0041] The inner wall of the second cylinder structure of the release member and the outer wall of the cavity structure are in close contact to achieve sealing between the cover member and the release member;

[0042] Alternatively, a tight ring structure is provided at the rear end of the release member, and a tight ring structure is also provided on the inner wall of the cover surrounding structure of the cover member or the inner wall where the cover surrounding structure and the cavity tube structure are connected. The tight ring structure is in the shape of a tube ring, and the sealing effect is achieved by the close contact between the walls of the tight rings of the two. The close contact structure can still maintain the sealing effect when the release member and the cover member rotate.

[0043] Alternatively, the outer wall of the first cylinder structure of the release member and the inner wall of the cover surrounding structure of the cover member are in close contact to achieve sealing between the cover member and the release member.

[0044] The container closure device of the present invention is made of a polymer material by mold injection molding, the cover member is preferably made of a polyethylene (PE) material by mold injection molding, and the release member is preferably made of a polypropylene (PP) material by mold injection molding; or the cover member is preferably made of a polymer material with a lower hardness than the release member by mold injection molding.

[0045] In particular, when prepared by mold injection molding, the injection gate of the cover member is set on the inner wall or outer wall of the sealing piece of the cavity tube structure. Preferably, the injection gate of the cover member is set at the center position of the inner wall or the center position of the outer wall of the sealing piece of the cavity tube structure.

[0046] Based on the structural characteristics of the cover member of the present invention, when the injection molding process, the thickness of the connection between the sealing sheet and the head end of the cavity tube structure, the structural size and other factors are the same, the injection molding gate of the cover member is set at the center of the inner wall or the center of the outer wall of the sealing sheet. The qualified rate of the cover member obtained by injection molding for the key sealing structure between the head end of the cavity tube structure and the sealing sheet connected by thinning can reach 100%. However, when the injection molding gate of the cover member is set at other positions, the qualified rate of the key sealing structure of the cover member is significantly reduced.

[0047] The container described in the present invention includes a container neck with an opening and a main body chamber, and a container having a thread or a blocking structure on the outer wall of the container neck, such as a container bottle with an open neck and neck threads, a container bottle with an open neck and a neck buckle, etc., including containers made of polymer materials, metals, 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).

[0048] Description of the concepts of the present invention related terms.

[0049] 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 contain materials, and the container closure device can contain other materials, and the two materials are independent of each other.

[0050] The "component" mentioned in the present invention refers to the component or constituent unit that constitutes the product.

[0051] The "component" mentioned in the present invention refers to a unit that can be separated from a product or a component, or a "component" refers to a product unit formed by assembling together; "component" and "component" sometimes have exactly the same concept.

[0052] The concepts of "head end" and "tail end" described in the present invention, the container closure device or its components, and various structures, etc., their head end refers to the end closest to the bottom of the container when the container closure device is installed on the container neck, and their other end is called the tail end.

[0053] The "buckle" etc. described in the present invention is a functional structure in the form of ribs, rib sheets or sheet structures, or a structure formed by a combination of these forms;

[0054] The "structure" mentioned in the present invention refers to the component of a member or structural unit, or the "structure" represents the inherent characteristic form set on the member or structural unit;

[0055] The concepts of "connection" and "linking" described in the present invention, "connection" refers to the interrelated structural relationship between structures on the same component, or "connection" refers to the mutual contact, matching engagement, matching snap-fit, matching snap-fit, etc. between different components or parts; "linking" means connecting, fixing and combining together, or forming an integral component by connecting, fixing and combining together.

[0056] The "L-shaped recessed chamber structure" mentioned in the present invention refers to a recessed chamber structure which is recessed from the outer wall of the first end of the cavity tube structure and the outer wall of the sealing sheet and protrudes from the interior of the cavity tube structure, and the recessed chamber structure appears to be in an "L" shape in appearance.

[0057] The concept of "cross-cutting" described in the present invention refers to the meaning of "lateral cutting", which specifically means that the present invention takes the central axis direction of the cavity tube structure as the longitudinal direction, the plane direction of the sealing sheet as the transverse direction, or the direction perpendicular to the central axis of the cavity tube structure as the transverse direction; the cutting structure rotates around the cavity tube structure, and there is no longitudinal displacement between the releasing member and the cavity tube structure, but only a transverse rotation occurs, and the thinned connecting structure of the cavity tube structure is cut.

[0058] The container closure device of the present invention can be obtained by assembling, snap-fitting, connecting, or welding the various structures or settings of the present invention by using separate parts when some structures are produced, such as by injection molds, which are difficult to produce, with low production efficiency, complicated material filling and sealing production processes, and high production costs, or the injection molds are difficult to realize their structures, or in order to meet the needs of industrial designs with different requirements. Undoubtedly, the container closure device of the present invention, no matter how it is assembled, installed, or assembled, belongs to the protection scope of the present invention.

[0059] For example, the cover member is an independent member; or the cover member is formed by assembling a separate member having a cover surrounding structure and a separate member having a cavity tube structure, and the tail end of the separate member having the cover surrounding structure is closed. The separate member having the cover surrounding structure also functions as a sealant to seal the opening at the tail end of the cavity tube structure.

[0060] Another aspect of the present invention provides components of a container closure device, namely, a cover component and a release component of the container closure device. The cover component and the release component of the container closure device have the technical features as described above.

[0061] Furthermore, the present invention also provides a packaging container, which is composed of the container closing device described in the present invention installed on the container neck, and the container includes a container neck with an opening and a main chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck, and the thread or the blocking structure can be interconnected with the thread or the blocking structure arranged on the release member.

[0062] In particular, the container closure device and the matching container of the present invention are mutually matching packaging combinations, having the size of special or conventional matching containers, and can provide better product functions, experience, appropriate screwing force, and better material holding capacity, appearance, etc. For example, preferably:

[0063] The inner diameter of the opening of the container neck is 24.5 mm to 26.5 mm, and the inner diameter of the cavity structure of the container closure device is 19.5 mm to 22 mm; or,

[0064] The inner diameter of the opening of the container neck is 29.5 mm to 30.5 mm, and the inner diameter of the cavity structure of the container closure device is 24 mm to 26 mm; or,

[0065] The inner diameter of the opening of the container neck is 21 mm to 22 mm, and the inner diameter of the cavity structure of the container closing device is 16 mm to 18 mm.

[0066] Furthermore, the present invention also provides a packaging composition, which is composed of the container closure device described in the present invention, a container, and two materials, wherein the container includes a container neck with an opening and a main chamber, and a thread or a blocking structure is provided on the outer wall of the container neck; the main chamber of the container accommodates one material, the cavity structure of the container closure device accommodates another material, and the two materials are independently sealed, and preferably at least one of the two materials is a liquid material.

[0067] Furthermore, the present invention provides a container closure device and an assembly method of a packaging container thereof, the assembly method comprising:

[0068] (1) Providing the following components, including: a cover member, a release member, a seal, and a container, wherein the container has an open container neck and a main body chamber, and a thread or a blocking structure is provided on the outer wall of the container neck;

[0069] (2) Assembly of the container closure device: the release member is installed and sleeved on the outer wall of the cavity structure of the cover member, so that the first positioning stop buckle of the cover member is connected with the second positioning stop buckle of the release member, and the cutting structure of the release member is located in the L-shaped recessed chamber structure. By using pressure and utilizing the material deformation of the cover member and the release member, the first buckle of the cover member and the second buckle of the release member are engaged with each other, and the cover member and the release member can be assembled together;

[0070] Furthermore, the material is filled into the cavity structure through the opening at the rear end of the cavity structure of the cover member or the opening of the channel structure, and the opening at the rear end of the cavity structure of the cover member or the opening of the channel structure is sealed with a sealing member, so that the material is sealed and stored in the cavity structure;

[0071] Furthermore, the container closure device is installed on the container neck by connecting the thread or the blocking structure of the release member with the thread or the blocking structure of the container neck.

[0072] The main chamber of the container contains a first material, and the cavity structure of the container closing device contains a second material. Before the container closing device is installed on the container neck, the first material is filled into the main chamber of the container through the opening of the container.

[0073] Furthermore, the container closure device and its packaging container and packaging composition provided by the present invention are used in the preparation or packaging and storage of the following products: food or beverages, drinking wine, health food, special medical formula food, medicine, medical device, sanitary product, cosmetics or daily necessities, especially in the packaging and storage of beverages, drinking wine, health food, special medical formula food, medicine, medical device, sanitary product, cosmetics or daily necessities containing liquid materials. For example, the container closure device contains liquid materials, or the container closure device contains solid materials, and the main chamber of the container contains liquid materials, etc.

[0074] The container closure device and the packaging container of the present invention can be widely used in the packaging of all materials that need to be stored independently and can be mixed and prepared immediately. Compared with the prior art, the container closure device and the packaging container of the present invention have the following innovative features.

[0075] First, the inventive structural arrangement of the cross-cutting release of the container closure device of the present invention is that the sealing sheet is in a complete plane state, and the connection of the thinning connection connected to the sealing sheet is in the same horizontal plane. There is no difference in the height of the sealing sheet and the thinning connection structure. Such a structural arrangement has the following innovative features:

[0076] (1) It ensures that the cutting process of the container closure device is smooth during use, and the sealing sheet does not deform or fold after cutting, thereby ensuring the release of materials in the cavity structure;

[0077] (2) Enhanced the reliability of quality control of structural sealing of thinning connections during injection molding production;

[0078] (3) After the thinned connecting structure of the cavity structure is cut, the cut of the sealing sheet is pushed to the outside of the cavity structure by the supporting and pressing structure, and the sealing sheet is still connected to the wall of the recessed chamber structure to form a funnel-shaped material outlet. The size of the release opening of the material in the cavity is controllable, and the operation and controllability are accurate and stable. Moreover, the solid material and viscous material can be released smoothly, especially the amorphous block material, the larger solid material or the viscous material, which can be released smoothly into the container;

[0079] (4) During the use of the container closure device, the sealing sheet is cut by the sharp structure, and the cavity structure is opened by the force of the cutting. Since the sealing sheet is in a complete plane state, the connection between the thinning connection and the sealing sheet is in the same horizontal plane, and there is no difference in the height of the sealing sheet and the thinning connection structure. Therefore, when the sealing sheet is cut, the required twisting force is small, uniform and gentle, and the twisting process is well controlled, especially for the elderly, children, women and other people with small hand twisting force.

[0080] Secondly, when using the mixture in the container, the container closure device of the present invention can choose to open the seal on the rear end opening of the cover member without removing the entire container closure device from the container neck, thereby avoiding the exposure of the inner core structure of the container closure device to the outside of the container, which may cause cross contamination or accidental contamination of the mixture in the container.

[0081] Thirdly, the container closure device of the present invention is equipped with mutually matching and ingeniously designed snaps, positioning stop buckles, recessed chamber structures, sealing sheets, and a method for cutting the sealing sheets, which can ensure that the cover member and the release member are assembled at a preset position, and the cutting structure of the release member is in the recessed chamber structure of the cover member, thereby avoiding the cutting structure from accidentally puncturing or cutting the sealing sheet at the head end of the cavity structure, which is conducive to the realization of large-scale industrial production and stable production.

[0082] Fourthly, it has good stability and reliability in use. When in use, it is only necessary to rotate the cover member so that the cutting structure of the release member starts to slide from the recessed chamber structure and cuts the thinned connection structure of the cavity structure. Only horizontal rotation occurs between the cover member and the release member without longitudinal displacement, which can ensure that the sealing between the cover member and the release member remains good and stable, and also ensure the sealing state between the release member and the container neck. Moreover, the appearance of the container closure device will not be changed before and after use, and the aesthetic appearance between the container closure device and the container will not be damaged.

[0083] Fifthly, the container closure device of the present invention has a wide range of choices for the polymer materials produced by injection molding of the cover member and the release member. It is only necessary for the cover member to use a polymer material with a hardness lower than that of the release member, which can easily meet the quality control requirements in the industrial mass production process and is also conducive to the widespread application of the container closure device.

[0084] Sixth, it is easy for industrial mass production. The container sealing device has only two components, which is simple in composition and material filling operation. It is easy to realize industrial mass production. No large buckle force is required during assembly, and the components are tight and stable after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] Figure 1 to Figure 5Schematic diagram of the structure of the container closure device and its components and the packaging container in Example 1, wherein:

[0086] Figure 1 and Figure 2 is a schematic diagram of the structure of the cover member, the release member, the seal and the container, which are views from two different directions;

[0087] Figure 3 and Figure 4 is a cross-sectional structural diagram of the cover member, which are cross-sectional views from two different directions;

[0088] Figure 5 The present invention is a cross-sectional structural diagram of a container closure device composed of a cover member, a release member, and a seal, which is assembled with a container, wherein the container closure device is in a sealed state.

[0089] Figure 6 to Figure 9 Schematic diagram of the structure of the container closure device and its components and the packaging container in Example 2, wherein:

[0090] Figure 6 and Figure 7 is a schematic diagram of the structure of the cover member, the release member, the seal and the container, which are views from two different directions;

[0091] Figure 8 is a cross-sectional structural diagram of a release member;

[0092] Fig. 9 A cross-sectional view of a container closure device composed of a cover member, a release member, and a seal member, assembled with a container, wherein the container closure device is in a sealed state

[0093] in, Figures 1 to 9 Description of the mark in:

[0094] 1 cover member; 101 cover surrounding structure; 102 cavity structure; 103 channel structure; 104 first buckle; 105 first positioning stop buckle; 106 sealing sheet; 107 thinning connection structure; 108 supporting and pressing structure; 109 recessed chamber structure; 110 first closing ring;

[0095] 11. Seals;

[0096] 2 release member; 201 first cylinder structure; 202 second cylinder structure; 203 first thread; 204 second buckle; 205 second positioning stop buckle; 206 cutting structure; 207 third buckle; 208 first rib buckle; 209 second closing ring;

[0097] 3 container; 301 container neck; 302 main body chamber; 303 second thread; 304 fourth buckle; 305 second rib stop buckle;

[0098] 4 first material; 5 second material. DETAILED DESCRIPTION

[0099] In the implementation process of the present invention, various embodiments and modifications produced by ordinary technicians in this field without departing from the scope and spirit of the present invention are obvious and easy to carry out. The present invention is further described below through the specific examples of the accompanying drawings, but it does not limit the present invention.

[0100] In addition, the technical solution of the present invention, including the preferred technical solution, is further described in detail by means of the accompanying drawings and by listing some optional embodiments of the present invention. It should be noted that any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, this document cannot exhaustively list all the alternative technical features and alternative technical solutions of the present invention, nor is it convenient for each implementation method of the technical feature to emphasize that it is one of the multiple optional implementation methods. Therefore, those skilled in the art should know that any technical feature and any technical solution in the present embodiment do not limit the scope of protection of the present invention, and the scope of protection of the present invention should include any alternative technical solutions that can be thought of by those skilled in the art without creative work.

[0101] Embodiment 1. A container closing device installed on the neck of a container, its components and a packaging container.

[0102] refer to Figure 1 to Figure 5 As shown, the container closing device provided in this embodiment is composed of a cover member 1 and a release member 2, wherein the cover member 1 has a cover surrounding structure 101, a cavity tube structure 102 and a channel structure 103, the cover surrounding structure 101 and the cavity tube structure 102 are connected together to form an annular structure, a first buckle 104 is provided on the inner wall of the cover surrounding structure 101, and a first positioning stop buckle 105 is provided on the inner wall of the connection between the cover surrounding structure 101 and the cavity tube structure 102, and the internal space of the cavity tube structure 102 can accommodate materials, The tail end of the cavity tube structure 102 is open, and a sealing sheet 106 is provided at the head end of the cavity tube structure 102. At the portion where the head end of the cavity tube structure 102 is connected to the sealing sheet 106, a slope structure is provided to reduce its thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107 where the cavity tube structure 102 and the sealing sheet 106 are connected. The thickness of the portion where the head end of the cavity tube structure 102 is connected to the sealing sheet 106 is 0.1 mm to 0.45 mm, and most preferably 0.2 mm to 0.4 mm.

[0103] The inner wall of the sealing sheet 106 is provided with a supporting structure 108 in a convex structure, and the portion where the cavity tube structure 102 and the sealing sheet 106 are connected is provided with an L-shaped recessed chamber structure 109, the recessed chamber structure 109 is recessed from the outer wall of the head end of the cavity tube structure 102 and protrudes from the inner wall of the head end of the cavity tube structure 102, and the recessed chamber structure 109 is recessed from the outer wall of the sealing sheet 106 and protrudes from the inner wall of the sealing sheet 106;

[0104] The rear end of the cavity structure 102 is provided with a channel structure 103, the channel structure 103 is open and connected to the internal space of the cavity structure 102, and a thread is provided on the outer wall of the channel structure 103;

[0105] Furthermore, a seal 11 is used to seal the opening of the channel structure 103. As shown in the figure, the seal 11 uses a threaded cover, which can be connected to the threads on the outer wall of the channel structure 103, so that the threaded cover is installed at the opening of the channel structure 103 to seal the opening of the channel structure 103.

[0106] The release member 2 comprises a first cylinder structure 201 and a second cylinder structure 202. The first cylinder structure 201 and the second cylinder structure 202 are connected together to form an annular structure. The head end and the tail end of the second cylinder structure 202 are both open. A first thread 203 is provided on the inner wall of the first cylinder structure 201, and a second buckle 204 is provided on the outer wall of the first cylinder structure 201. A second positioning stop buckle 205 is provided at the tail end of the release member 2, and a cutting structure 206 is provided on the inner wall of the second cylinder structure 202. The cutting structure 206 protrudes from the inner wall of the second cylinder structure 202.

[0107] The cover member 1 and the release member 2 described in this embodiment can be assembled together to form a container closure device, and the second cylinder structure 202 of the release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the second positioning stop buckle 205 of the release member 2 is connected to the first positioning stop buckle 105 of the cover member 1, which plays a positioning role, and makes the cutting structure 206 of the release member 2 in the recessed chamber structure 109. The cover member 1 and the release member 2 are assembled at a preset position, ensuring that the cavity structure 102 and the second cylinder structure 202 are in a stable position during assembly, preventing the cutting structure 206 from accidentally puncturing or cutting the sealing sheet 106 at the head end of the cavity structure 102, and ensuring that the cover member 1 and the release member 2 are in a relatively stable position during and after assembly. The cover member 1 and the release member 2 can be assembled together to form a container closure device by connecting and buckling the first buckle 104 of the cover member 1 and the second buckle 204 of the release member 2.

[0108] The assembly method of the container closure device of this embodiment includes:

[0109] The second cylinder structure 202 of the release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the first positioning stop buckle 105 of the cover member 1 is connected with the second positioning stop buckle 205 of the release member 2, and the cutting structure 206 of the release member 2 is located in the L-shaped recessed chamber structure 109. By using pressure and utilizing the material deformation of the cover member 1 and the release member 2, the first buckle 104 of the cover member 1 and the second buckle 204 of the release member 2 are buckled together, so that the cover member 1 and the release member 2 can be assembled together to form the container closure device of this embodiment, and the cover member 1 and the release member 2 can rotate with each other. The outer wall of the cavity structure 102 and the inner wall of the second cylinder structure 202 are tightly fitted to achieve sealing. As shown in the figure, the first cylinder structure 201 of the release member 2 is located inside the cover surrounding structure 101 of the cover member 1;

[0110] 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 threaded cover of the sealing member 11 is used to seal the opening of the channel structure 103, so that the second material 5 is sealed and stored in the cavity structure 102;

[0111] Furthermore, by screwing the container closing device, that is, screwing the cover member 1, under the interaction of the positioning stop buckle, the cover member 1 drives the release member 2 to rotate, and the first thread 203 of the release member 2 is connected with the second thread 303 of the neck of the container 3, so that the container closing device is installed on the neck opening of the container 3 and tightened, so that the container closing device is fixed on the container neck 301, and the neck opening of the container 3 is sealed, that is, a packaging container is formed.

[0112] The container 3 comprises a container neck 301 with an opening and a main body chamber 302 , and a second thread 303 is arranged on the outer wall of the container neck 301 . The main body chamber 302 of the container 3 accommodates the first material 4 .

[0113] When in use, the cover member 1 is screwed in the opposite direction, and the cover member 1 and the release member 2 rotate relative to each other, and the cutting structure 206 of the release member 2 starts to slide from the recessed chamber structure 109, and the cutting structure 206 cross-cuts the thinning connecting structure 107 of the cavity structure around the cavity structure 102, so that the sealing sheet 106 is cut. When the cutting reaches the predetermined position, the first positioning stop buckle 105 and the second positioning stop buckle 205 engage with each other to prevent the cover member 1 and the release member 2 from rotating. At the same time, the cutting structure 206 and The supporting and pressing structures 108 on the sealing sheet 106 are engaged with each other so that the cutting structure 206 exerts a thrust on the supporting and pressing structure 108, pushing the cutout of the sealing sheet 106 toward the outside of the cavity structure 102, forming a funnel-shaped material outlet, so that the material contained in the cavity structure 102 of the container closure device can be released into the container 3 and mixed with the material in the container 3 to achieve the effect of mixing and blending; in addition, the sealing sheet 106 after being cut is still connected to the wall of the recessed chamber structure 109 and will not fall off from the cavity structure 102;

[0114] When the mixed material is to be used, the seal 11 only needs to be opened, and the container closing device is still installed on the container neck, and the mixed material can be used.

[0115] Optionally, by changing the relative position between the support and pressure structure 108 and the recessed chamber structure 109 of the cover member, changing the position of the first positioning stop buckle 105 and the second positioning stop buckle 205 when initially engaged, and changing the direction of rotation between the cover member 1 and the release member 2, that is, changing the screwing direction, and then changing the direction of the cutting structure 206 when cutting the thinned connection structure 107, the container closure device of this embodiment can achieve different screwing release methods, screwing directions, use methods and use functions. For example, when the container closure device is screwed on the neck of the container and tightened, the material in the container closure device is directly released into the main chamber of the container.

[0116] Embodiment 2. A container closing device installed on the neck of a container, its components and a packaging container.

[0117] refer to Figure 6 to Figure 9As shown, the container closing device provided in this embodiment is composed of a cover member 1 and a release member 2, wherein the cover member 1 has a cover surrounding structure 101, a cavity tube structure 102 and a channel structure 103, the cover surrounding structure 101 and the cavity tube structure 102 are connected together to form an annular structure, a first buckle 104 and two first positioning stop buckles 105 distributed in symmetrical positions are arranged on the inner wall of the cover surrounding structure 101, a first closing ring 110 is arranged on the inner wall of the connection between the cover surrounding structure 101 and the cavity tube structure 102, and the cavity tube structure 102 is provided with a first locking ring 110. The internal space can accommodate materials, the tail end of the cavity tube structure 102 is open, and a sealing sheet 106 is provided at the head end of the cavity tube structure 102. At the part where the head end of the cavity tube structure 102 is connected to the sealing sheet 106, a slope structure is provided to reduce its thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107 between the cavity tube structure 102 and the sealing sheet 106. The thickness of the part where the head end of the cavity tube structure 102 is connected to the sealing sheet 106 is 0.1 mm to 0.45 mm, and most preferably 0.2 mm to 0.4 mm;

[0118] The inner wall of the sealing sheet 106 is provided with two symmetrically distributed and protruding support structures 108, and the portion where the cavity tube structure 102 and the sealing sheet 106 are connected is provided with two symmetrically distributed and L-shaped recessed chamber structures 109, the recessed chamber structures 109 are recessed from the outer wall of the head end of the cavity tube structure 102 and protrude from the inner wall of the head end of the cavity tube structure 102, and the recessed chamber structures 109 are recessed from the outer wall of the sealing sheet 106 and protrude from the inner wall of the sealing sheet 106;

[0119] The rear end of the cavity structure 102 is provided with a channel structure 103, which is open and connected to the internal space of the cavity structure 102;

[0120] Furthermore, a seal 11 is used to seal the opening of the channel structure 103. As shown in the figure, the seal 11 is a pull-open lid, preferably a commercially available pull-open lid made of metal aluminum. The pull-open lid can be connected to the channel structure 103. For example, an pull-open lid sealing machine or an pull-open lid sealing tool can be used to install and fix the pull-open lid at the opening of the channel structure 103 to seal the opening of the channel structure 103.

[0121] The release member 2 comprises a first cylinder structure 201 and a second cylinder structure 202, the first cylinder structure 201 and the second cylinder structure 202 are connected together to form an annular cylinder structure, the head end and the tail end of the second cylinder structure 202 are both open, a blocking structure is arranged on the inner wall of the first cylinder structure 201, the blocking structure is composed of a third buckle 207 and a first rib buckle 208, a second buckle 204 is arranged on the outer wall of the first cylinder structure 201, two second positioning stop buckles 205 and a second closing ring 209 which are symmetrically distributed are arranged on the tail end of the release member 2, and two cutting structures 206 which are symmetrically distributed are arranged on the inner wall of the second cylinder structure 202, and the cutting structure 206 protrudes from the inner wall of the second cylinder structure 202;

[0122] The second cylinder structure 202 of the release member 2 can be sleeved on the outer wall of the cavity structure 102 of the cover member 1 , and the cutting structure 206 of the release member 2 can be located in the recessed chamber structure 109 of the cover member 1 .

[0123] The cover member 1 and the release member 2 of this embodiment can be assembled together to form a container closure device, and the second cylinder structure 202 of the release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the two second positioning stop buckles 205 of the release member 2 are respectively connected to the two first positioning stop buckles 105 of the cover member 1, which plays a positioning role, and the two cutting structures 206 of the release member 2 are located in the two recessed chamber structures 109 of the cover member 1. The cover member 1 and the release member 2 are assembled at a preset position, ensuring that the cavity structure 102 and the second cylinder structure 202 are connected. The component structure 202 is in a stable position during assembly, preventing the cutting structure 206 from accidentally puncturing or cutting the sealing sheet 106 at the head end of the cavity structure 102, ensuring that the cover member 1 and the release member 2 are in a relatively stable position during and after assembly. The cover member 1 and the release member 2 can be assembled together to form a container closure device by connecting and buckling the first buckle 104 of the cover member 1 and the second buckle 204 of the release member 2, and the first closing ring 110 of the cover member 1 and the second closing ring 209 of the release member 2 are tightly fitted to achieve sealing.

[0124] The assembly method of the container closure device of this embodiment includes:

[0125] The second cylinder structure 202 of the release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the first positioning stop buckle 105 of the cover member 1 is connected with the second positioning stop buckle 205 of the release member 2, and the two cutting structures 206 of the release member 2 are respectively located in the two L-shaped recessed chamber structures 109, and the first buckle 104 of the cover member 1 and the second buckle 204 of the release member 2 are engaged with each other by using pressure and utilizing the material deformation of the cover member 1 and the release member 2, so that the cover member 1 and the release member 2 can be assembled together to form the container closure device of this embodiment, and the first closing ring 110 and the second closing ring 209 are closely fitted to achieve sealing, and the cover member 1 and the release member 2 can rotate with each other. As shown in the figure, the first cylinder structure 201 of the release member 2 is located inside the cover surrounding structure 101 of the cover member 1;

[0126] 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 using the easy-open cover of the sealing member 11 , so that the second material 5 is sealed and stored in the cavity structure 102 .

[0127] The container 3 includes a container neck 301 with an opening and a main chamber 302, and a blocking structure is provided on the outer wall of the container neck 301, and the blocking structure of the container neck is composed of a fourth buckle 304 and a second rib buckle 305. The main chamber 302 of the container 3 accommodates the first material 4.

[0128] Furthermore, by the third buckle 207 and the first rib stopper 208 provided on the release member 2, they are matched with the fourth buckle 304 and the second rib stopper 305 provided on the outer wall of the neck of the container 3, respectively, and are buckled and engaged together, so that the container closing device is installed and fixed on the container neck 301, thereby forming a packaging container.

[0129] When in use, the cover member 1 is screwed, and the cover member 1 and the release member 2 rotate relative to each other. The two cutting structures 206 of the release member 2 start to slide from the two recessed chamber structures 109 respectively, and the cutting structures 206 cross-cut the thinning connecting structure 107 of the cavity structure around the cavity structure 102, so that the sealing sheet 106 has two cuts. When the cutting reaches the predetermined position, the two first positioning stop buckles 105 respectively engage with the two second positioning stop buckles 205 to prevent the cover member 1 and the release member 2 from rotating. At the same time, the two cutting structures 206 are engaged with each other. The structures 206 are respectively engaged with the two supporting and pressing structures 108 on the sealing sheet 106, and exert a thrust on the supporting and pressing structures 108, pushing the two cutouts of the sealing sheet 106 toward the outside of the cavity structure 102, forming two funnel-shaped material outlets, so that the material contained in the cavity structure 102 of the container closure device can be released into the container 3 and mixed with the material in the container 3 to achieve the effect of mixing and blending; in addition, the sealing sheet 106 after being cut is still connected to the wall of the recessed chamber structure 109 and will not fall off from the cavity structure 102;

[0130] When the mixed material is needed, the easy-open cover only needs to be opened, and the container closing device is still installed on the container neck, so that the mixed material can be used.

[0131] In addition, it should be noted that if Figure 7 , Figure 8 As shown, on the outer wall of the sealing sheet 106 of the cover member 1, a groove structure is provided at a position between the two recessed chamber structures 109. When the cutting structure 206 generates a thrust on the supporting structure 108 and pushes the cutout of the sealing sheet to the outside of the cavity structure 102, the sealing sheet can be easily bent at the groove structure, which is conducive to smoothly forming two funnel-shaped material outlets through the two cutouts of the sealing sheet.

[0132] Example 3. A packaging composition comprising two independently sealed materials.

[0133] A packaging composition, the packaging composition comprises 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, and a thread or a blocking structure is arranged on the outer wall of the container neck 301, the container closure device adopts the container closure device described in Example 1 or Example 2, and the container closure device is installed on the neck of the container 3;

[0134] The first material 4 is in the main chamber 302 of the container, and the second material 5 is in the cavity structure of the cover member of the container closure device;

[0135] 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.

[0136] Example 4. Use of a container closure device, a packaging container or a packaging composition.

[0137] The use of any one of the container closure devices, packaging containers or packaging compositions described in Example 1 or Example 2 in the preparation or packaging and storage of the following products: food, beverages, drinking wine, health food, special medical purpose formula food, ordinary food, medicine, medical equipment, sanitary products, cosmetics or daily necessities containing liquid ingredients.

Claims

1. A container closure device mounted on a container neck, comprising a cover member and a release member, characterized in that: The container has an open container neck and a main body chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck; The cover member comprises a cover surrounding structure and a cavity tube structure, wherein the cover surrounding structure and the cavity tube structure are connected together to form an annular structure, and a first buckle and a first positioning stop buckle are arranged on the cover member, wherein the first buckle is arranged on the inner wall of the cover surrounding structure, and the first positioning stop buckle is arranged on: the inner wall of the cover surrounding structure, the outer wall of the cavity tube structure, or the inner wall where the cover surrounding structure and the cavity tube structure are connected; The head end of the cavity tube structure is provided with a sealing sheet, and the head end of the cavity tube structure and the portion connected to the sealing sheet are provided with an inclined surface structure to reduce the thickness thereof, and then connected to the sealing sheet to form a thinning connection structure; A supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet; An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet, wherein the recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet; The release member comprises a first cylinder structure and a second cylinder structure, wherein the first cylinder structure and the second cylinder structure are connected together to form an annular cylinder structure, the head end and the tail end of the second cylinder structure are both open, and the inner wall of the first cylinder structure is provided with a thread or a blocking structure; The release member is provided with a second buckle, a second positioning stop buckle, and a cutting structure; The second buckle is arranged on: the outer wall of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected; The second positioning stop buckle is arranged on: the outer wall of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected; The cutting structure is arranged on the inner wall of the second cylinder structure and protrudes from the inner wall of the second cylinder structure; The second cylinder structure of the release member can be sleeved on the outer wall of the cavity structure of the cover member, the second positioning stop buckle of the release member and the first positioning stop buckle of the cover member can be connected to each other, and the cutting structure of the release member can be located in the L-shaped recessed chamber structure of the cavity structure; The second buckle of the release member and the first buckle of the cover member can be buckled together; The release member and the cover member are capable of rotating relative to each other; The thread or the blocking structure provided on the release member can be connected to the thread or the blocking structure provided on the outer wall of the container neck.

2. A container closure device mounted on a container neck according to claim 1, characterized in that: The tail end of the cavity structure is open; Alternatively, a channel structure connected to the internal space of the cavity tube structure is provided at the rear end of the cavity tube structure, and the channel structure has an opening.

3. A container closure device installed on a container neck according to claim 1, characterized in that: The supporting and pressing structure in the form of a convex structure provided on the inner wall of the sealing sheet includes a convex structure in the form of a rib sheet, a rib strip, or an arc sheet, or a convex structure in the form of an inclined surface provided on the inner wall of the sealing sheet; The cutting structure arranged on the releasing member comprises a sheet-like structure or an arc sheet-like structure having a sharp structure.

4. A container closure device mounted on a container neck according to claim 1, characterized in that: 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 chamber structure and cut the thinned connecting structure of the cavity structure, so that the sealing sheet is cut. When the cutting 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. The cutting structure can be engaged with the supporting and pressing structure on the sealing sheet so that the cutting structure exerts a thrust on the supporting and pressing structure, pushing the cutout of the sealing sheet toward the outside of the cavity structure.

5. A container closure device mounted on a container neck according to claim 1, characterized in that: The cover member is provided with a first positioning stop buckle, a recessed chamber structure and a supporting and pressing structure, and the release member is provided with a second positioning stop buckle and a cutting structure; Alternatively, the cover member is provided with two symmetrically distributed first positioning stop buckles, two symmetrically distributed recessed chamber structures and two symmetrically distributed supporting and pressing structures, and the release member is provided with two symmetrically distributed second positioning stop buckles and two symmetrically distributed cutting structures.

6. A container closure device mounted on a container neck according to claim 1, characterized in that: The cover member is prepared by mold injection molding, wherein the injection gate of the cover member is arranged at the center position of the inner wall or the center position of the outer wall of the sealing sheet; The thickness of the connection between the head end of the cavity tube structure and the sealing sheet is 0.08 mm to 0.55 mm.

7. A cover member of a container closure device, which refers to the container closure device installed on the neck of a container according to claim 1, characterized in that: The cover member comprises a cover surrounding structure and a cavity tube structure, the cover surrounding structure and the cavity tube structure are connected together to form an annular structure, a first buckle and a first positioning stop buckle are arranged on the cover member, the first buckle is arranged on the inner wall of the cover surrounding structure, and the first positioning stop buckle is arranged on: the inner wall of the cover surrounding structure, the outer wall of the cavity tube structure or the inner wall where the cover surrounding structure and the cavity tube structure are connected; The head end of the cavity tube structure is provided with a sealing sheet, and the head end of the cavity tube structure and the portion connected to the sealing sheet are provided with an inclined surface structure to reduce the thickness thereof, and then connected to the sealing sheet to form a thinning connection structure; A supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet; An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet. The recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet.

8. A cover member for a container closure according to claim 7, characterized in that: The tail end of the cavity tube structure is open; or, the tail end of the cavity tube structure is provided with a channel structure connected to the internal space of the cavity tube structure, and the channel structure has an opening.

9. A release member of a container closure device, which is a container closure device installed on a container neck according to claim 1, characterized in that: The release member comprises a first cylinder structure and a second cylinder structure, wherein the first cylinder structure and the second cylinder structure are connected together to form an annular cylinder structure, and the head end and the tail end of the second cylinder structure are both open, and the release member is provided with a thread or a blocking structure, a second buckle, a second positioning stop buckle, and a cutting structure; The thread or the blocking structure on the release member is arranged on the inner wall of the first cylinder structure; The second buckle is arranged on: the outer wall of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected; The second positioning stop buckle is arranged on: the outer wall of the first cylinder structure, the outer wall of the tail end of the second cylinder structure, or the outer wall where the first cylinder structure and the second cylinder structure are connected; The cutting structure is arranged on the inner wall of the second cylinder structure and protrudes from the inner wall of the second cylinder structure.

10. A packaging container, characterized in that: The packaging container is composed of the container closing device described in claim 1 installed on the container neck, the container includes a container neck with an opening and a main chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck, and the thread or the blocking structure can be interconnected with the thread or the blocking structure arranged on the release member.

11. A packaging composition, characterized in that: The packaging composition is composed of two materials and the container closure device and the container according to claim 1, wherein the container comprises a container neck with an opening and a main body chamber, and a thread or a blocking structure is arranged on the outer wall of the container neck; The two materials are respectively contained in the main chamber of the container and the cavity structure of the container closing device, and the two materials are independently sealed.

12. The method for assembling a packaging container according to claim 10, characterized in that: The assembly method comprises: (1) Providing the following components, including: a cover member, a release member, a seal, and a container, wherein the container has an open container neck and a main body chamber, and a thread or a blocking structure is provided on the outer wall of the container neck; (2) Assembly of the container closure device: the release member is installed and sleeved on the outer wall of the cavity structure of the cover member, so that the first positioning stop buckle of the cover member is connected with the second positioning stop buckle of the release member, and the cutting structure of the release member is located in the L-shaped recessed chamber structure. By using pressure and utilizing the material deformation of the cover member and the release member, the first buckle of the cover member and the second buckle of the release member are engaged with each other, and the cover member and the release member can be assembled together; Furthermore, the material is filled into the cavity structure through the opening at the rear end of the cavity structure of the cover member or the opening of the channel structure, and the opening at the rear end of the cavity structure of the cover member or the opening of the channel structure is sealed with a sealing member, so that the material is sealed and stored in the cavity structure; Furthermore, the container closure device is installed on the container neck by connecting the thread or the blocking structure of the release member with the thread or the blocking structure of the container neck.

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