Container sealing device capable of releasing materials in internal transverse cutting mode, component of container sealing device and packaging composition

Abstract

The invention relates to the technical field of packaging containers of products, and provides a container sealing device capable of releasing materials in an internally transverse cutting mode, the container sealing device is formed by assembling an inner cover and a control cover together, the inner cover is provided with a first buckle, a first positioning stop blocking buckle, a sealing piece, a supporting and pressing structure and a convex chamber structure, and the inner wall of a surrounding structure of the inner cover is provided with a thread or a clamping and blocking structure; a sharp structure which is in a protruding shape and points to the inner wall of the side wall of the control moving cover is arranged in the control moving cover, and the control moving cover is provided with a second clamping buckle and a second positioning stopping blocking buckle; the container sealing device is mounted at the neck of a container, the sharp structure starts to slide from the convex chamber structure by controlling the mutual rotation between the moving cover and the inner cover, the thinning connecting structure is transversely cut from the interior of the cylindrical enclosure structure of the inner cover to a preset position, and the notch of the sealing piece is pushed to the exterior of the cylindrical enclosure structure, so that the container is sealed. And the materials in the container sealing device are released into the container. In addition, the invention further provides a component of the container sealing device and a packaging container.

Description

Technical Field

[0001] The invention relates to the technical field of product packaging containers, and in particular to a container closing device with inner cross-cutting for releasing materials, as well as components of the container closing device 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 drug 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 by screwing the cover member, the cover member and the release member are longitudinally displaced, 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 including the container 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; 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.

[0007] Specifically, the present invention adopts the following technical solutions.

[0008] The present invention provides a container closure device, comprising an inner cover and a control cover, wherein: 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.

[0009] The inner cover has a cover surrounding structure and a tube surrounding structure, the cover surrounding structure and the tube surrounding structure are connected together to form a ring-shaped structure, a thread or a blocking structure is provided on the inner wall of the cover surrounding structure, and the inner cover is provided with a first buckle and a first positioning stop buckle; The first buckle is arranged at any of the following positions: the outer wall of the cover surrounding structure, the rear end of the cover surrounding structure, or the outer wall of the rear end of the tube surrounding structure; The first positioning stop buckle is arranged at any of the following positions: the rear end of the cover surrounding structure, the outer wall of the cover surrounding structure, the rear end of the cylinder surrounding structure, or the inner wall of the cylinder surrounding structure; The tail end of the cylinder circumference structure is open, the head end of the cylinder circumference structure is provided with a sealing sheet, and the inner wall of the sealing sheet is provided with a supporting and pressing structure in a convex structure; The head end of the cylinder circumference structure and the part connected to the sealing sheet are provided with an inclined surface structure to reduce their thickness, and then connected to the sealing sheet to form a thinned connection structure; such a structural setting enables the head end of the cylinder circumference structure and the sealing sheet to achieve a good sealing effect through the thinned connection structure, and is also conducive to being cut smoothly; preferably, the thickness of the head end of the cylinder circumference structure connected to the sealing sheet is 0.08mm-0.55mm, preferably 0.1mm-0.45mm, and most preferably 0.2mm-0.4mm; the cylinder circumference structure can accommodate materials; A convex chamber structure is provided at the position where the cylinder circumference structure is connected to the sealing sheet. The convex chamber structure is recessed from the inner wall of the first end of the cylinder circumference structure and protrudes from the outer wall of the first end of the cylinder circumference structure.

[0010] The control cover is a cylindrical structure, and a sharp structure is arranged inside the control cover. The sharp structure is protruding and points to the inner wall of the side periphery of the cylindrical structure of the control cover. The sharp structure is a spike-like structure or a sharp structure, so that it can cut through the thinned connection structure of the cylindrical periphery structure of the inner cover, so that the sealing sheet is cut; The sharp structure is connected to the inner wall of the control cover through a sheet structure, an arc sheet structure or a cylindrical structure; The control cover is provided with a second buckle and a second positioning stop buckle, the second buckle is provided on the inner wall of the side enclosure of the control cover, and the second positioning stop buckle is provided at any of the following positions: the inner wall of the side enclosure of the control cover, the inner wall of the rear end of the control cover, the outer wall of the sheet structure, the arc sheet structure or the cylindrical structure; The control cover and the inner cover can be assembled together to form a container closing device by interlocking the second snap and the first snap, wherein the second positioning stop buckle of the control cover and the first positioning stop buckle of the inner cover can be connected to each other, and the sharp structure of the control cover is in the convex chamber structure of the inner cover.

[0011] The container closure device can be connected to the container neck through the threads provided on the inner wall of the cover surrounding structure and the threads provided on the outer wall of the container neck, so that the container closure device can be installed on the container neck; or The container closing device can be connected to each other through the blocking structure arranged on the inner wall of the cover surrounding structure and the blocking structure arranged on the outer wall of the container neck, so that the container closing device can be installed on the container neck.

[0012] The rear end of the control cover is in a closed shape; Alternatively, a channel structure is provided at the rear end of the control cover, wherein the channel structure has an opening or is in the shape of an opening, and the channel structure is connected to the internal space of the control cover. Furthermore, a channel seal is used to seal the opening of the channel structure, and the channel seal includes a sealing cover, a sealing film or a sealing plug. The channel seal has the function of installing the container closure device of the present invention on the neck of the container to form a packaging container, so that the material or mixed material in the packaging container is in a sealed state, and the mixed material can flow from the main chamber of the container through the channel structure. By opening the channel seal, the mixed material can be discharged to the outside of the packaging container without removing the entire container closure device from the neck of the container, so that the mixed material can be used, thereby avoiding cross contamination caused by the inner core structure of the container closure device being exposed to the external environment.

[0013] In an optional embodiment, preferably, a thread or buckle structure is provided on the channel structure of the control cover, and a sealing cover having a thread or buckle structure, such as a threaded cover or an easy-open cover, is installed on the channel structure through the thread or buckle structure, so that the entire packaging container can be sealed; Alternatively, the sealing film is installed at the rear end of the channel structure by bonding or welding, and reaches a sealing state; Alternatively, the rubber stopper is installed and sealed on the channel structure, and when necessary, the rubber stopper can be removed, punctured or pierced, for example, for sealing a packaging container for a pharmaceutical injection.

[0014] 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 control cover and the inner cover can rotate relative to each other.

[0015] The structural functions and interactions of the container closure device of the present invention are as follows: the sharp structure of the control cover is extended into the cylindrical structure of the inner cover, and is connected with the second positioning stop buckle of the control cover through the first positioning stop buckle of the inner cover, so as to play a positioning role, so that the inner cover and the control cover can be assembled at a preset position, ensuring that the sharp structure and the cylindrical structure are in a stable position during assembly, preventing the sharp structure from accidentally piercing the sealing sheet at the head end of the cylindrical structure, ensuring that the inner cover and the control cover are in a relatively stable position during and after assembly, and using pressure and utilizing the material deformation of the control cover and the inner cover to make the first buckle of the inner cover and the second buckle of the control cover buckle together, so that the inner cover and the control cover are assembled together to form the container closure device of the present invention, at which time the sharp structure is in the convex chamber structure of the inner cover, and the sharp structure points to the thinning connection structure of the cylindrical structure; The inner cover and the control cover can rotate with each other, and the cylindrical structure of the inner cover can accommodate materials. Before the inner cover and the control cover are assembled together, the materials can be filled into the cylindrical structure of the inner cover. The process of filling and sealing the materials is the process of assembling and forming the container closure device. Alternatively, after the inner cover and the control cover are assembled together, the materials are filled into the cylindrical structure of the inner cover through the channel structure at the rear end of the control cover, and the opening of the channel structure is sealed by using a channel seal, so that the materials can be sealed in the container closure device. When in use, by twisting the control cover, the control cover and the inner cover rotate relative to each other, and the sharp structure of the control cover starts to slide from the convex chamber structure, and the sharp structure rotates around the cylinder circumference structure, and produces a cross-cutting effect on the thinning connection structure of the cylinder circumference structure inside the cylinder circumference structure, so that the sealing sheet is cut. When the cutting is to a predetermined position, the first positioning stop buckle and the second positioning stop buckle engage with each other to prevent the control cover and the inner cover from rotating. At the same time, the sharp structure and the supporting and pressing structure on the sealing sheet engage with each other, so that the sharp structure produces a thrust on the supporting and pressing structure, pushing the cut of the sealing sheet to the outside of the cylinder circumference structure to form a funnel-shaped material outlet, so that the material contained in the cylinder circumference 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 cylinder circumference structure; in addition, the sealing sheet after cutting is still connected to the wall of the convex chamber structure and will not fall off from the cylinder circumference structure; When the mixed material is needed, the threads on the inner cover and the threads on the container neck are unscrewed to remove the container closure device from the container neck, and the mixed material can be used; Alternatively, when the mixed material is to be used, the channel seal at the rear end of the control 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.

[0016] The supporting and pressing structure in the form of a raised structure arranged on the inner wall of the sealing sheet described in the present invention includes a raised 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 raised structure in the form of an inclined surface on the inner wall of the sealing sheet; its function is that when the sharp structure cuts the thinning connection structure of the cylinder circumference structure to a predetermined position, the sharp 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 cut of the sealing sheet to the outside of the cylinder circumference structure, so as to facilitate the smooth release of the material in the cylinder circumference structure to the container.

[0017] The container closing device described in the present invention has a first positioning stop buckle on the inner cover, a convex chamber structure on the cylinder circumference structure, and a supporting and pressing structure on the sealing sheet. Correspondingly, a second positioning stop buckle and a sharp structure are provided on the control cover, and the above structures can match each other, which is conducive to production assembly and a good user experience. Such a setting can enable the sealing sheet to form a funnel-shaped material outlet after the thinning connecting structure is cut, which is conducive to the smooth release of the material.

[0018] Alternatively, in the container closure device described in the present invention, two first positioning stop buckles distributed in symmetrical positions are arranged on the inner cover, two convex chamber structures distributed in symmetrical positions are arranged on the cylindrical circumference structure, and two supporting and pressing structures distributed in symmetrical positions are arranged on the sealing sheet, and correspondingly, two second positioning stop buckles distributed in symmetrical positions and two sharp structures distributed in symmetrical positions are arranged on the control cover, and the above structures can match each other; such an arrangement can form two funnel-shaped material outlets on the sealing sheet after the thinning connection 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 taking the central axis of the circumferential body structure or circumferential body component in which it is located as the symmetry axis, and the position distribution arranged according to the symmetrical structure or array structure. For example, taking the central axis of the cover surrounding structure or the cylinder surrounding structure of the inner cover as the axis of symmetry, two first positioning stop buckles, two convex chamber structures and two supporting and pressing structures are set according to the setting method of the symmetrical structure or the array structure. Similarly, taking the central axis of the cylinder structure of the control cover itself as the axis of symmetry, two second positioning stop buckles and two sharp structures are set according to the setting method of the symmetrical structure or the array structure.

[0019] In addition, by changing the cutting direction of the thinned connecting structure by the sharp structure of the control cover, and changing the relative position between the supporting and pressing structure and the convex chamber structure, the container closing device of the present invention can not only realize different required screwing release methods, screwing directions, usage methods and usage functions; but also meet various forms of industrial filling, capping and assembly requirements.

[0020] In the container closure device of the present invention, the cover surrounding structure of the inner cover is located inside the control cover; or, the cover surrounding structure of the inner cover is located below the control cover, so that the control cover and the cover surrounding structure of the inner cover form a two-layer structure. The relative position between the cover surrounding structure of the inner cover and the control cover not only constitutes the appearance of the container closure device, but also affects the use of the container closure device.

[0021] If the various components, parts or structures of the container closure device described in the present invention need to be sealed with each other, on the one hand, the sealing can be achieved by close fitting between the components or structures, for example, by setting a structure with a tight ring, especially setting a structure with a tight ring on a plastic component to be in close contact with another component, and using the elastic deformation of the plastic material to fit closely with the tight ring structure to achieve the sealing effect between the two contacting components or structures; on the other hand, sealing can be achieved by using sealing pads, sealing rings, etc. made of rubber or elastomeric polymer materials.

[0022] For example, preferably, a closing ring structure is provided at the tail end of the cylinder surrounding structure of the inner cover or the tail end of the cover surrounding structure, and a closing ring structure is provided on the inner wall of the tail end of the control cover, and the closing ring structure is cylindrical, and a sealing effect is achieved by the close contact between the walls of the closing rings of the two, and the close contact structure can still maintain a sealing effect when the inner cover and the control cover rotate; For another example, a closing structure capable of sealing the cylindrical structure and the container neck is disposed on the outer wall of the cylindrical structure of the inner cover. The closing structure can be in close contact with the inner wall of the container neck to achieve a sealing effect.

[0023] Description of the concepts of the present invention related terms.

[0024] The packaging container refers to a container composition formed by installing a container closure device on the neck of a container, wherein the main chamber of the container can contain a material, and the container closure device can contain another material, and the two materials are independent of each other.

[0025] The arc-shaped sheet structure described in the present invention refers to a sheet structure in the shape of an arc surface, or the arc-shaped sheet structure is a part of the cylindrical structure.

[0026] The concepts of "head end" and "tail end" mentioned in the present invention, the container closure device, and various components, structures, parts, devices or settings, 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.

[0027] The buckles, positioning stop buckles, blocking structures, blocking buckle ribs, closing rings, supporting and pressing structures, etc. described in the present invention are functional structures provided by ribs, rib sheets, sheet-like shapes, sheet-like shapes, cylindrical shapes, etc., or are structures formed by a combination of these shapes. For example, it can be understood by those skilled in the art that the "blocking structure" described in the present invention refers to a combination of a buckle structure and a blocking buckle structure, preferably a structural form formed by ribs, rib sheets or convex and concave structures, which have the functions of mutual buckling, joining, connection and blocking; the concepts of "ribs" and "rib sheets" refer to strip-shaped or sheet-shaped structural settings that connect related structures, or strip-shaped or sheet-shaped structural settings attached to related structures, which have certain functions of reinforcing, stabilizing, supporting, connecting or linking related structures or components, and also have the functions of realizing related structural functions, such as saving materials. The "ribs" are structured to form gaps or voids, realize the structure of material flowing through the channel, form convex and concave structures, form buckle structures, and form blocking structures; the structural setting of the "ribs" includes, but is not limited to, convex strip structures, columnar structures, etc., and the structural setting of the "rib sheets" includes, but is not limited to, planar sheet structures, arc sheet structures (arc sheet structures), curved sheet structures, cylindrical, angled sheet structures, etc. The "ribs" and "rib sheets" can be selectively used according to the functions and structural settings of the structures in which they are located or connected to achieve their functions. For example, the planar sheet structure has the functions of connection and fixation, easy movement, space saving, and forming a channel structure for material flow; the cylindrical sheet structure can make the structure have the functions of connection and fixation, easy rotation, and realizing the channel structure, and the angled sheet structure has the functions of strengthening the stability of the structure in which it is located or connected and saving space, etc.

[0028] The concepts of “component”, “part”, “device” and “structure” described in the present invention have related or similar meanings.

[0029] "Component" means a component or constituent unit that constitutes a product; "Part" refers to a unit that can be separated from a product or a component, or a "part" refers to a product unit formed by assembling together; "component" and "part" sometimes have exactly the same concept; "Device" means a product that is assembled from multiple components or parts, or "Device" means a product component that can be installed on a product or component; "Structure" refers to a component part, part or structural unit, or "structure" represents the inherent characteristic form of a component, part or structural unit; 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.

[0030] The term "joining" as used in the present invention refers to two components or two structures being connected or in contact with each other and matching or cooperating with each other.

[0031] The various components, structures, parts, devices or settings of the container closure device or packaging container described in the present invention can be obtained by assembling, snap-fitting, connecting, fixing, bonding or welding of individual parts, and are preferably assemblies or compositions of the various structures described in the embodiments of the present invention, or assemblies or compositions that can be assembled. Of course, it can be understood by those skilled in the art that when certain parts are produced, such as by injection molds, there are situations of high difficulty, low production efficiency, poor production compatibility with existing parts, high production costs, or injection molds are difficult to achieve their structures, etc., the various structures, components, parts, devices or settings described in the present invention can be obtained by assembling, connecting, fixing or welding individual parts. Undoubtedly, no matter how the container closure device or packaging container of the present invention is assembled, installed or assembled, and its various components or structures, they all fall within the scope of protection described in the present invention; In an optional embodiment, in order to facilitate the assembly of the container closure device and the individual components of the sharp-shaped structure to facilitate the filling of materials, the control cover can be formed by assembling and fixing the individual components of the outer cover structure together.

[0032] It is particularly noted that the container closure device, container and other parts, components, structures, devices or arrangements of the present invention may be made of polymer materials, metals, glass, ceramics, aluminum-plastic composite materials or paper-plastic composite materials, or composite functional materials of the above materials, or the container closure device and its packaging container are assemblies of different parts made of various materials. Preferably, they are made of polymer materials such as plastics, rubber, and plastic materials, or metal materials, or glass and ceramic materials.

[0033] Another aspect of the present invention provides components of a container closure device, namely, an inner cover and a control cover of the container closure device. The inner cover and the control cover of the container closure device have the technical features as described above.

[0034] Preferably, the inner cover and the control cover of the container closure device of the present invention are made of polymer materials such as polyethylene (PE) and polypropylene (PP) through an injection mold. Preferably, the inner cover of the container closure device is made of polymer materials such as polyethylene (PE) through an injection mold, and the control cover is made of polymer materials such as polypropylene (PP) through an injection mold; in particular, when prepared by injection mold, the injection gate of the inner cover is set on the inner wall or outer wall of the sealing sheet, preferably the injection gate of the inner cover is set at the center of the inner wall or the center of the outer wall of the sealing sheet, and most preferably the injection gate of the inner cover is set at the center of the inner wall of the sealing sheet; Based on the structural features of the inner cover of the present invention, the inventors found that when the injection molding process, the thickness of the connection between the barrel circumference structure and the head end of the sealing sheet, the structural size and other factors are the same, the injection molding gate of the inner cover is set at the center of the inner wall or the center of the outer wall of the sealing sheet of the barrel circumference structure. The inner cover obtained by injection molding has a pass rate of 100% for the key sealing structure between the sealing sheet and the inner wall of the head end of the barrel circumference structure connected by thinning. However, when the injection molding gate of the inner cover is set at other positions, the pass rate of the key sealing structure of the inner cover is less than 50%.

[0035] Furthermore, the present invention also provides a packaging container, which is composed of the container closure device of the present invention installed on the neck of a container with an opening. As described above, the container closure device is installed on the neck of the container to form a packaging container. Before opening the packaging container, the sharp structure and the cylindrical structure of the inner cover are rotated by rotating the control cover, and the sharp structure cuts through the thinned connection structure of the cylindrical structure, and finally achieves the purpose of sealing, storing and releasing the materials in the container closure device; then, the control cover is further screwed to separate the container closure device from the neck of the container, so that the opening of the container can be opened, or the channel seal can be opened to discharge the mixed materials in the main chamber of the container to achieve the purpose of use. It is convenient and simple to use, and is easy to install, fill and produce industrially.

[0036] In particular, the container closure device and the matching container of the present invention are mutually matched packaging combinations, having the size of special or conventional matching containers, and can provide better product functions, experience, material holding capacity, appearance, etc. For example, preferably: The inner diameter of the container opening is 29 mm to 30.5 mm, and the outer diameter of the cylindrical structure of the inner cover is 28 mm to 31 mm; or The inner diameter of the container opening is 24.5 mm to 26 mm, and the outer diameter of the cylindrical structure of the inner cover is 23 mm to 26.5 mm; or The inner diameter of the container opening is 21 mm to 22 mm, and the outer diameter of the cylindrical structure of the inner cover is 19 mm to 22.5 mm; or The inner diameter of the container opening is 43 mm to 44 mm, and the outer diameter of the cylindrical structure of the inner cover is 42 mm to 44.5 mm; or The inner diameter of the container opening is 46 mm to 48 mm, and the outer diameter of the cylindrical structure of the inner cover is 45 mm to 48.5 mm.

[0037] Furthermore, the present invention also provides a packaging composition, consisting of two materials, the container closure device described in the present invention and a container, wherein the container includes a container neck with an opening and a main chamber, and the container neck is provided with a thread or a blocking structure that can be interconnected with the container closure device; the main chamber of the container contains one material, the container closure device contains another material, and the two materials are independently sealed from each other, preferably at least one of the two materials is a liquid material, and preferably the main chamber of the container contains a liquid material.

[0038] Furthermore, the present invention provides a method for assembling a container closure device, the method comprising: The sharp structure of the control cover is extended into the cylindrical structure of the inner cover, so that the second positioning stop buckle of the control cover is connected with the first positioning stop buckle of the inner cover, and the sharp structure is located in a position directly opposite to the convex chamber structure of the inner cover. By using pressure and utilizing the deformation of the materials of the control cover and the inner cover, the first buckle of the inner cover and the second buckle of the control cover are buckled together, and the sharp structure is located in the convex chamber structure of the inner cover, the inner cover and the control cover can be assembled together to form a container closing device.

[0039] Before the inner cover and the control cover are assembled together, the material can be filled into the cylindrical structure of the inner cover. The process of filling and sealing the material is the process of assembling and forming the container closure device. Alternatively, after the inner cover and the control cover are assembled together, the material can be filled into the cylindrical structure of the inner cover through the channel structure at the rear end of the control cover, and the opening of the channel structure can be sealed with a channel seal, so that the material can be sealed in the container closure device. Furthermore, the container closure device is installed on the neck of the container by connecting the threads provided on the inner wall of the cover surrounding structure of the inner cover with the threads provided on the outer wall of the container neck; Alternatively, the container closing device is installed on the neck of the container by connecting the blocking structure provided on the inner wall of the cover surrounding structure of the inner cover with the blocking structure provided on the outer wall of the container neck.

[0040] The main body chamber of the container contains a first material, and the cylindrical structure of the container closing device contains a second material. Before the container closing device is installed on the neck of the container, the first material is filled into the main body chamber of the container through the opening of the container.

[0041] Furthermore, the container closure device and the 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, ordinary 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, ordinary 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.

[0042] The present invention is of great significance for the packaging and storage of the above-mentioned products, and is of great significance for determining the material ratio applied to consumers or users, especially for the packaging and storage of products whose stability is worse in a liquid environment, or for products such as beverages whose freshness and quality are seriously affected.

[0043] Compared with the prior art, the technical solution of the present invention has the following innovative features.

[0044] 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: (1) It ensures that the cutting process of the container closure device is smooth during use, and the sealing piece does not deform or fold after cutting, thus ensuring the release of materials in the cylinder structure; (2) Enhanced the reliability of quality control of structural sealing of thinning connections during injection molding production; (3) After the thinned connecting structure of the cylindrical structure is cut, the cutout of the sealing sheet is pushed to the outside of the cylindrical structure by the supporting and pressing structure, and the sealing sheet is still connected to the wall of the convex chamber structure to form a funnel-shaped material outlet. The size of the material release opening in the cylindrical structure is controllable, and has accurate and stable operability and controllability. Moreover, it can realize the smooth release of solid materials and viscous materials, especially amorphous block materials, larger solid materials or viscous materials, which can be smoothly released into the container; (4) When the container closure device is in use, the thinned connection structure is opened by the force of the sharp structure through cutting. Since the sealing sheet is in a complete plane state, the connection between the thinned connection and the sealing sheet is in the same horizontal plane. There is no difference in the height of the sealing sheet and the thinned 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. It is especially easy to use for the elderly, children, women and other people with small twisting force.

[0045] 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 control cover 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.

[0046] Thirdly, the container closure device of the present invention is equipped with mutually matching and ingeniously designed buckles, positioning stop buckles, convex chamber structures, sealing sheets, and a method for cutting the sealing sheets, which can ensure that the control cover and the inner cover are assembled at a preset position. The sharp structure of the control cover is in the convex chamber structure of the inner cover, which avoids the cutting structure from accidentally puncturing or cutting the sealing sheet at the head end of the cylinder structure, and is conducive to the realization of large-scale industrial production and stable production.

[0047] Fourthly, it has good stability and reliability in use. When in use, you only need to rotate the control cover to make the sharp structure start to slide from the convex chamber structure and cut the thinning connection structure of the cylinder structure. The control cover and the inner cover only rotate horizontally without longitudinal displacement, which can ensure that the sealing between the control cover and the inner cover remains good and stable, and also ensure the sealing state between the inner cover and the container neck. Moreover, the appearance of the container closure device will not be changed before and after use, and the aesthetic appearance of the container closure device and the container will not be damaged.

[0048] Fifthly, the container closure device of the present invention has a wide range of choices for the polymer materials of the injection molding production of the control cover and the inner cover. It only needs to use a polymer material with a harderness greater than that of the inner cover, 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.

[0049] 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.

[0050] Seventhly, the container closure device of the present invention can realize different requirements of screw release mode, screw direction, use method and use function; it can also meet various forms of industrial filling, capping and assembly requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0052] In the figure: Figure 1 to Figure 4 : is a schematic diagram of the structure of the container closing device and the packaging container thereof in Example 1 of the present invention, wherein: Figure 1 and Figure 2 1 is a schematic diagram of the structure of the inner cover, the control cover and the container of the container closure device, which are views from two different directions, wherein the control cover is formed by assembling and fixing a separate component of the outer cover structure and a separate component of the sharp-shaped structure together; Figure 3 It is a cross-sectional structural diagram of the inner cover; Figure 4 is a cross-sectional structural diagram of the container closure device and the container assembled together, wherein the cylinder surrounding structure is in a sealed state; Figures 5 to 8 : is a schematic diagram of the structure of the container closing device and the packaging container thereof in Example 2 of the present invention, wherein: Figure 5 and Figure 6 It is a schematic diagram of the structure of the inner cover, the control cover, the threaded cover and the container of the container closure device, which are views from two different directions; Figure 7 It is a cross-sectional structural diagram of the control cover; Figure 8 It is a cross-sectional structural diagram of the container closure device, the threaded cap and the container assembled together, wherein the cylinder circumference structure is in a sealed state; Figures 9 to 11 : is a schematic diagram of the structure of the container closing device and the packaging container thereof in Example 3 of the present invention, wherein: Fig. 9 and Fig.10 It is a schematic diagram of the structure of the inner cover, the control cover, the easy-open cover and the container of the container closure device, which are views from two different directions; Fig.11 It is a cross-sectional structural diagram of the container closure device, the easy-open lid and the container assembled together, wherein the cylindrical structure is in a sealed state.

[0053] Reference numerals: 1, inner cover; 101, cover surrounding structure; 102, cylinder surrounding structure; 103, thread; 104, first buckle; 105, first positioning stop buckle; 106, sealing sheet; 107, thinning connection structure; 108, supporting and pressing structure; 109, convex chamber structure; 110, first tight closing ring; 111, third buckle; 112, first stop; 2. Control cover; 201. Sharp structure; 202. Arc sheet structure; 203. Second buckle; 204. Second positioning stop buckle; 205. Second tight closing ring; 206. Channel structure; 21. Screw cap; 22. Easy-open cap; 3. Container; 301. Main body chamber; 302. Neck thread; 303. Fourth buckle; 304. Second stopper; 4. First material; 5. Second material. DETAILED DESCRIPTION

[0054] The following is combined with Figure 1-11 This application is described in further detail.

[0055] Embodiment 1. A container closure device, its components and its packaging container.

[0056] refer to Figure 1 to Figure 4 As shown, the container closing device provided in this embodiment includes an inner cover 1 and a control cover 2, wherein: the container 3 has an open container neck and a main body chamber 301, and a neck thread 302 is provided on the outer wall of the neck of the container 3.

[0057] The inner cover 1 comprises a cover surrounding structure 101 and a tube surrounding structure 102, the cover surrounding structure 101 and the tube surrounding structure 102 are connected together to form a ring-shaped structure, a thread 103 is arranged on the inner wall of the cover surrounding structure 101, a first buckle 104 is arranged on the outer wall of the tail end of the tube surrounding structure 102, and a first positioning stop buckle 105 is arranged on the inner wall of the tube surrounding structure 102; As shown in the figure, the rear end of the cylinder circumference structure 102 is open, and a sealing sheet 106 is provided at the head end of the cylinder circumference structure 102. A convex supporting and pressing structure 108 is provided on the inner wall of the sealing sheet 106. The sealing sheet 106 makes the head end of the cylinder circumference structure 102 closed. The head end of the cylinder circumference structure 102 and the part connected to the sealing sheet 106 are provided with an inclined surface structure to reduce their thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107. Preferably, the thickness of the connection between the cylinder circumference structure 102 and the sealing sheet 106 is 0.15mm to 0.35mm, for example, preferably 0.17mm, 0.19mm, 0.2mm, 0.22mm, 0.23mm, 0.25mm, 0.28mm or 0.3mm; A convex chamber structure 109 is provided at the portion where the cylinder circumference structure 102 and the sealing sheet 106 are connected. The convex chamber structure 109 is recessed from the inner wall of the first end of the cylinder circumference structure 102 and protrudes from the outer wall of the first end of the cylinder circumference structure 102. A first closing ring 110 is disposed at the rear end of the cylindrical structure 102 .

[0058] The control cover 2 is a cylindrical structure, and the rear end of the control cover 2 is closed. As shown in the figure, the control cover 2 is formed by assembling and fixing a separate component of the outer cover structure and a separate component of the sharp structure 201 together. The sawtooth rib structure provided on the inner wall of the outer cover structure and the sawtooth rib structure provided on the sharp structure 201 are connected to each other, so that the separate component of the outer cover structure and the separate component of the sharp structure 201 can be assembled and fixed together to form the control cover 2; the sharp structure 201 is provided inside the control cover 2, and the sharp structure 201 is protruding and pointing to the inner wall of the side of the cylindrical structure of the control cover 2, and the sharp structure 201 is a spike-like structure or a sharp structure; The sharp structure 201 is connected to the inner wall of the control cover 2 through the arc sheet structure 202; A second buckle 203 is provided on the inner wall of the side of the control cover 2, and a second positioning stop buckle 204 is provided on the outer wall of the arc sheet structure 202; The control cover 2 and the inner cover 1 can be assembled together to form a container closing device by interlocking the second snap buckle 203 and the first snap buckle 104, wherein the second positioning stop buckle 204 of the control cover 2 and the first positioning stop buckle 105 of the inner cover 1 can be connected to each other, and the sharp structure 201 of the control cover 2 is in the convex chamber structure 109 of the inner cover.

[0059] As shown in the figure, the container closing device of this embodiment is provided with two first positioning stop buckles 105 which are symmetrically distributed on the inner cover 1, two symmetrically distributed convex chamber structures 109 are provided on the cylindrical structure 102, and two symmetrically distributed supporting and pressing structures 108 are provided on the sealing sheet 106. Correspondingly, two symmetrically distributed second positioning stop buckles 204 and two symmetrically distributed sharp structures 201 are provided on the control cover 2, and the above structures can match each other. Such a configuration can enable the sealing sheet 106 to form two funnel-shaped material outlets after the thinning connecting structure 107 is cut, which is conducive to the smooth release of the material.

[0060] The container closing device can be connected to the neck thread 302 of the container 3 through the thread 103 set on the inner wall of the cover surrounding structure 101, and the container closing device is installed on the neck of the container 3 to close the container to form a packaging container, and the control cover 2 and the inner cover 1 can rotate relative to each other.

[0061] The assembly method of the container closure device of the present embodiment comprises: filling the second material 5, preferably a liquid material, into the cylindrical structure 102 of the inner cover 1, extending the sharp structure 201 of the control cover 2 into the cylindrical structure 102 of the inner cover 1, connecting the second positioning stop buckle 204 of the control cover 2 with the first positioning stop buckle 105 of the inner cover 1, and making the sharp structure 201 be located at a position facing the convex chamber structure 109 of the inner cover 1, and using pressure to make the control cover 2 and the inner cover 1 be locked. The material of the cover 1 is deformed, so that the first buckle 104 of the inner cover 1 and the second buckle 203 of the control cover 2 are buckled together, and the sharp structure 201 is in the convex chamber structure 109 of the inner cover 1, and the sharp structure 201 points to the thinned connection structure 107 of the cylinder structure 102. Moreover, the first closing ring 110 provided at the rear end of the cylinder structure 102 is tightly fitted with the inner wall of the side wall at the rear end of the control cover 2, so as to seal the material in the cylinder structure 102. The inner cover 1 and the control cover 2 can be assembled together to form a container closure device.

[0062] Furthermore, the thread 103 provided on the inner wall of the cover surrounding structure 101 of the inner cover 1 is connected with the thread 302 of the neck of the container 3 , so that the container closing device is installed on the neck of the container 3 .

[0063] The main chamber 301 of the container 3 contains the first material 4, and the cylindrical structure 102 of the container closing device contains the second material 5. Before the container closing device is installed on the neck of the container 3, the first material 4 is filled into the main chamber 301 of the container through the opening of the container 3.

[0064] In the container closure device of this embodiment, the cover surrounding structure 101 of the inner cover 1 is located at the lower part of the control cover 2.

[0065] When in use, by screwing the control cover 2, the control cover 2 and the inner cover 1 rotate relative to each other, and the sharp structure 201 of the control cover 2 starts to slide from the convex chamber structure 109, and the sharp structure 201 rotates around the cylindrical structure 102, and inside the cylindrical structure 102, a cross-cutting effect is produced on the thinning connecting structure 107 of the cylindrical structure 102, so that the sealing sheet 106 is cut. When the cutting reaches a predetermined position, the first positioning stop buckle 105 and the second positioning stop buckle 204 engage with each other to prevent the control cover 2 and the inner cover 1 from rotating. At the same time, the sharp structure 201 The sharp structure 201 engages with the support and pressure structure 108 on the sealing sheet 106 so that the support and pressure structure 108 is thrusted by the sharp structure 201, pushing the cutout of the sealing sheet 106 toward the outside of the cylindrical structure 102, forming two funnel-shaped material outlets, so that the material contained in the cylindrical structure 102 can be released into the container 3 and mixed with the material in the container 3, thereby achieving the purpose of sealing, storing and releasing the material in the cylindrical structure 102; in addition, the cut sealing sheet 106 is still connected to the wall of the convex chamber structure 109 and will not fall off the cylindrical structure 102; When the mixed material is to be used, the thread 103 on the inner cover 1 and the thread 302 on the neck of the container 3 are simply unscrewed to remove the container closure device from the container neck, and the mixed material can be used.

[0066] In addition, it should be noted that Figure 2 , Figure 3 and Figure 4 As shown, on the outer wall of the sealing sheet 106 of the inner cover 1, a groove structure is provided between the two convex chamber structures 109. When the two sharp structures 201 generate a thrust on the two supporting and pressing structures 108 and push the cutout of the sealing sheet 106 to the outside of the cylinder circumference structure 102, the sealing sheet 106 can be easily bent at the groove structure, which is conducive to smoothly realizing the two cutouts of the sealing sheet 106 to form two funnel-shaped material outlets.

[0067] In addition, by changing the cutting direction of the thinned connecting structure 107 by the sharp structure 201 of the control cover 2, and changing the relative position between the supporting structure 108 and the convex chamber structure 109, not only can the container closure device of this embodiment achieve different requirements of screw release mode, screw direction, use method and use function; it can also meet various forms of industrial filling, capping and assembly requirements.

[0068] Example 2. A container closure device, its components and its packaging container.

[0069] refer to Figures 5 to 8As shown, the container closing device provided in this embodiment includes an inner cover 1 and a control cover 2, wherein: the container 3 has an open container neck and a main body chamber 301, and a neck thread 302 is provided on the outer wall of the neck of the container 3.

[0070] The inner cover 1 comprises a cover surrounding structure 101 and a tube surrounding structure 102. The cover surrounding structure 101 and the tube surrounding structure 102 are connected together to form a ring-shaped structure. A thread 103 is arranged on the inner wall of the cover surrounding structure 101. A first buckle 104 is arranged on the outer wall of the head end of the cover surrounding structure 101. A first positioning stop buckle 105 is arranged at the tail end of the cover surrounding structure 101. As shown in the figure, the rear end of the cylinder circumference structure 102 is open, and a sealing sheet 106 is provided at the head end of the cylinder circumference structure 102. A convex supporting and pressing structure 108 is provided on the inner wall of the sealing sheet 106. The sealing sheet 106 makes the head end of the cylinder circumference structure 102 closed. The head end of the cylinder circumference structure 102 and the part connected to the sealing sheet 106 are provided with an inclined surface structure to reduce their thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107. Preferably, the thickness of the connection between the cylinder circumference structure 102 and the sealing sheet 106 is 0.15mm to 0.35mm, for example, preferably 0.17mm, 0.19mm, 0.2mm, 0.22mm, 0.23mm, 0.25mm, 0.28mm or 0.3mm; A convex chamber structure 109 is provided at the portion where the cylinder circumference structure 102 and the sealing sheet 106 are connected. The convex chamber structure 109 is recessed from the inner wall of the first end of the cylinder circumference structure 102 and protrudes from the outer wall of the first end of the cylinder circumference structure 102. A first closing ring 110 is disposed at the rear end of the cylindrical structure 102 .

[0071] As shown in the figure, the control cover 2 is a cylindrical structure, and a sharp structure 201 is arranged inside the control cover 2. The sharp structure 201 is protruding and points to the inner wall of the side of the cylindrical structure of the control cover 2. The sharp structure 201 is a spike-like structure or a sharp structure. The sharp structure 201 is connected to the inner wall of the control cover 2 through the arc sheet structure 202; A second buckle 203 is provided on the inner wall of the side enclosure of the control cover 2, a second positioning stop buckle 204 is provided on the inner wall of the side enclosure at the rear end of the control cover 2, and a second closing ring 205 is provided on the inner wall of the rear end of the control cover 2; The rear end of the control cover 2 is provided with a channel structure 206, the channel structure 206 is open and connected to the internal space of the control cover 2, and a thread structure is provided on the outer wall of the channel structure 206; The control cover 2 and the inner cover 1 can be assembled together to form a container closing device by interlocking the second snap buckle 203 and the first snap buckle 104, wherein the second positioning stop buckle 204 of the control cover 2 and the first positioning stop buckle 105 of the inner cover 1 can be connected to each other, and the sharp structure 201 of the control cover 2 is in the convex chamber structure 109 of the inner cover.

[0072] As shown in the figure, the container closing device of this embodiment is provided with two first positioning stop buckles 105 which are symmetrically distributed on the inner cover 1, two symmetrically distributed convex chamber structures 109 are provided on the cylindrical structure 102, and two symmetrically distributed supporting and pressing structures 108 are provided on the sealing sheet 106. Correspondingly, two symmetrically distributed second positioning stop buckles 204 and two symmetrically distributed sharp structures 201 are provided on the control cover 2, and the above structures can match each other. Such a configuration can enable the sealing sheet 106 to form two funnel-shaped material outlets after the thinning connecting structure 107 is cut, which is conducive to the smooth release of the material.

[0073] The container closing device can be connected to the neck thread 302 of the container 3 through the thread 103 set on the inner wall of the cover surrounding structure 101, and the container closing device is installed on the neck of the container 3 to close the container to form a packaging container, and the control cover 2 and the inner cover 1 can rotate relative to each other.

[0074] The assembling method of the container closure device of the present embodiment comprises: extending the sharp structure 201 of the control cover 2 into the cylindrical structure 102 of the inner cover 1, connecting the second positioning stop buckle 204 of the control cover 2 with the first positioning stop buckle 105 of the inner cover 1, and making the sharp structure 201 in a position directly opposite to the convex chamber structure 109 of the inner cover 1, using pressure and utilizing the material deformation of the control cover 2 and the inner cover 1 to make the first buckle 104 of the inner cover 1 and the second buckle 203 of the control cover 2 buckle together, and making the sharp structure 201 in the convex chamber structure 109 of the inner cover 1, and the sharp structure 201 points to the thinned connecting structure 107 of the cylindrical structure 102, and the first closing ring 110 provided at the tail end of the cylindrical structure 102 and the second closing ring 205 provided on the inner wall of the tail end of the control cover 2 are tightly fitted to achieve a sealing effect, so that the inner cover 1 and the control cover 2 can be assembled together to form a container closure device; Furthermore, the second material 5 is filled into the cylindrical structure 102 of the inner cover 1 by controlling the channel structure 206 at the rear end of the cover 2, and the channel seal, i.e., the threaded cover 21, is used to seal the opening of the channel structure 206, so that the material can be sealed in the container closure device; Furthermore, the thread 103 provided on the inner wall of the cover surrounding structure 101 of the inner cover 1 is connected with the thread 302 of the neck of the container 3 , so that the container closing device is installed on the neck of the container 3 .

[0075] The main chamber 301 of the container 3 contains the first material 4, and the cylindrical structure 102 of the container closing device contains the second material 5. Before the container closing device is installed on the neck of the container 3, the first material 4 is filled into the main chamber 301 of the container through the opening of the container 3.

[0076] In the container closure device of this embodiment, the cover surrounding structure 101 of the inner cover 1 is located inside the control cover 2.

[0077] When in use, by screwing the control cover 2, the control cover 2 and the inner cover 1 rotate relative to each other, and the sharp structure 201 of the control cover 2 starts to slide from the convex chamber structure 109, and the sharp structure 201 rotates around the cylindrical structure 102, and inside the cylindrical structure 102, a cross-cutting effect is produced on the thinning connecting structure 107 of the cylindrical structure 102, so that the sealing sheet 106 is cut. When the cutting reaches a predetermined position, the first positioning stop buckle 105 and the second positioning stop buckle 204 engage with each other to prevent the control cover 2 and the inner cover 1 from rotating. At the same time, the sharp structure 201 The sharp structure 201 engages with the support and pressure structure 108 on the sealing sheet 106 so that the support and pressure structure 108 is thrusted by the sharp structure 201, pushing the cutout of the sealing sheet 106 toward the outside of the cylindrical structure 102, forming two funnel-shaped material outlets, so that the material contained in the cylindrical structure 102 can be released into the container 3 and mixed with the material in the container 3, thereby achieving the purpose of sealing, storing and releasing the material in the cylindrical structure 102; in addition, the cut sealing sheet 106 is still connected to the wall of the convex chamber structure 109 and will not fall off the cylindrical structure 102; When the mixed material is to be used, there is no need to remove the container closure device from the container neck. It is only necessary to unscrew the threaded cap 21 to allow the mixed material to pass through the channel structure 206 at the rear end of the control cap 2 and finally be discharged to achieve the purpose of using the mixed material.

[0078] In addition, it should be noted that Figure 6 and Figure 8 As shown, on the outer wall of the sealing sheet 106 of the inner cover 1, a groove structure is provided between the two convex chamber structures 109. When the two sharp structures 201 generate a thrust on the two supporting and pressing structures 108 and push the cutout of the sealing sheet 106 to the outside of the cylinder circumference structure 102, the sealing sheet 106 can be easily bent at the groove structure, which is conducive to smoothly realizing the two cutouts of the sealing sheet 106 to form two funnel-shaped material outlets.

[0079] In addition, by changing the cutting direction of the thinned connecting structure 107 by the sharp structure 201 of the control cover 2, and changing the relative position between the supporting structure 108 and the convex chamber structure 109, not only can the container closure device of this embodiment achieve different requirements of screw release mode, screw direction, use method and use function; it can also meet various forms of industrial filling, capping and assembly requirements.

[0080] Example 3. A container closure device, its components and its packaging container.

[0081] refer to Figures 9 to 11 As shown, the container closing device provided in this embodiment includes an inner cover 1 and a control cover 2, wherein: the container 3 has an open container neck and a main chamber 301, and a blocking structure B is provided on the outer wall of the neck of the container 3, and the blocking structure B is composed of a fourth buckle 303 and a second blocking 304.

[0082] The inner cover 1 comprises a cover surrounding structure 101 and a tube surrounding structure 102, the cover surrounding structure 101 and the tube surrounding structure 102 are connected together to form a ring-shaped structure, a blocking structure A is arranged on the inner wall of the cover surrounding structure 101, and the blocking structure A is composed of a third buckle 111 and a first buckle 112, a first buckle 104 is arranged on the outer wall of the head end of the cover surrounding structure 101, and a first positioning stop buckle 105 is arranged on the outer wall of the cover surrounding structure 101; As shown in the figure, the rear end of the cylinder circumference structure 102 is open, and a sealing sheet 106 is provided at the head end of the cylinder circumference structure 102. A convex supporting and pressing structure 108 is provided on the inner wall of the sealing sheet 106. The sealing sheet 106 makes the head end of the cylinder circumference structure 102 closed. The head end of the cylinder circumference structure 102 and the part connected to the sealing sheet 106 are provided with an inclined surface structure to reduce their thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107. Preferably, the thickness of the connection between the cylinder circumference structure 102 and the sealing sheet 106 is 0.15mm to 0.35mm, for example, preferably 0.17mm, 0.19mm, 0.2mm, 0.22mm, 0.23mm, 0.25mm, 0.28mm or 0.3mm; A convex chamber structure 109 is provided at the portion where the cylinder circumference structure 102 and the sealing sheet 106 are connected. The convex chamber structure 109 is recessed from the inner wall of the first end of the cylinder circumference structure 102 and protrudes from the outer wall of the first end of the cylinder circumference structure 102. A first closing ring 110 is disposed at the rear end of the cylindrical structure 102 .

[0083] As shown in the figure, the control cover 2 is a cylindrical structure, and a sharp structure 201 is arranged inside the control cover 2. The sharp structure 201 is protruding and points to the inner wall of the side of the cylindrical structure of the control cover 2. The sharp structure 201 is a spike-like structure or a sharp structure. The sharp structure 201 is connected to the inner wall of the control cover 2 through the arc sheet structure 202; A second buckle 203 is provided on the inner wall of the side enclosure of the control cover 2, a second positioning stop buckle 204 is provided on the inner wall of the side enclosure at the rear end of the control cover 2, and a second closing ring 205 is provided on the inner wall of the rear end of the control cover 2; The rear end of the control cover 2 is provided with a channel structure 206, which is in an open shape and communicates with the internal space of the control cover 2; The control cover 2 and the inner cover 1 can be assembled together to form a container closing device by interlocking the second snap buckle 203 and the first snap buckle 104, wherein the second positioning stop buckle 204 of the control cover 2 and the first positioning stop buckle 105 of the inner cover 1 can be connected to each other, and the sharp structure 201 of the control cover 2 is in the convex chamber structure 109 of the inner cover.

[0084] As shown in the figure, the container closing device of this embodiment is provided with two first positioning stop buckles 105 which are symmetrically distributed on the inner cover 1, two symmetrically distributed convex chamber structures 109 are provided on the cylindrical structure 102, and two symmetrically distributed supporting and pressing structures 108 are provided on the sealing sheet 106. Correspondingly, two symmetrically distributed second positioning stop buckles 204 and two symmetrically distributed sharp structures 201 are provided on the control cover 2, and the above structures can match each other. Such a configuration can enable the sealing sheet 106 to form two funnel-shaped material outlets after the thinning connecting structure 107 is cut, which is conducive to the smooth release of the material.

[0085] The assembling method of the container closure device of the present embodiment comprises: extending the sharp-shaped structure 201 of the control cover 2 into the cylindrical structure 102 of the inner cover 1, connecting the second positioning stop buckle 204 of the control cover 2 with the first positioning stop buckle 105 of the inner cover 1, and making the sharp-shaped structure 201 in a position directly opposite to the convex chamber structure 109 of the inner cover 1, using pressure and utilizing the material deformation of the control cover 2 and the inner cover 1, so that the first buckle 104 of the inner cover 1 and the second buckle 203 of the control cover 2 are buckled together, and the sharp-shaped structure 201 is in the convex chamber structure 109 of the inner cover 1, and the sharp-shaped structure 201 points to the thinned connecting structure 107 of the cylindrical structure 102, and the first closing ring 110 and the second closing ring 205 are tightly fitted to achieve a sealing effect, so that the inner cover 1 and the control cover 2 can be assembled together to form a container closure device; Further, the second material 5 is filled into the cylindrical structure 102 of the inner cover 1 by controlling the channel structure 206 at the rear end of the cover 2, and a channel seal, i.e., an easy-open cover 22 is used, preferably a commercially available easy-open cover 22 made of metal aluminum is used, and the easy-open cover 22 can be connected to the channel structure 206. For example, an easy-open cover sealing machine or an easy-open cover sealing tool can be used to install and fix the easy-open cover 22 at the opening of the channel structure 206, and the opening of the channel structure 206 is sealed, so that the material can be sealed in the container closure device; Furthermore, the third buckle 111 and the first buckle 112 provided on the inner wall of the cover surrounding structure 101 are respectively connected to the fourth buckle 303 and the second buckle 304 provided on the outer wall of the neck of the container 3, so that the container closing device is installed and fixed on the neck of the container 3, so that the container is closed to form a packaging container, and the control cover 2 and the inner cover 1 can rotate relative to each other.

[0086] The main chamber 301 of the container 3 contains the first material 4, and the cylindrical structure 102 of the container closing device contains the second material 5. Before the container closing device is installed on the neck of the container 3, the first material 4 is filled into the main chamber 301 of the container through the opening of the container 3.

[0087] In the container closure device of this embodiment, the cover surrounding structure 101 of the inner cover 1 is located inside the control cover 2.

[0088] When in use, by screwing the control cover 2, the control cover 2 and the inner cover 1 rotate relative to each other, and the sharp structure 201 of the control cover 2 starts to slide from the convex chamber structure 109, and the sharp structure 201 rotates around the cylindrical structure 102, and inside the cylindrical structure 102, a cross-cutting effect is produced on the thinning connecting structure 107 of the cylindrical structure 102, so that the sealing sheet 106 is cut. When the cutting reaches a predetermined position, the first positioning stop buckle 105 and the second positioning stop buckle 204 engage with each other to prevent the control cover 2 and the inner cover 1 from rotating. At the same time, the sharp structure 201 The sharp structure 201 engages with the support and pressure structure 108 on the sealing sheet 106 so that the support and pressure structure 108 is thrusted by the sharp structure 201, pushing the cutout of the sealing sheet 106 toward the outside of the cylindrical structure 102, forming two funnel-shaped material outlets, so that the material contained in the cylindrical structure 102 can be released into the container 3 and mixed with the material in the container 3, thereby achieving the purpose of sealing, storing and releasing the material in the cylindrical structure 102; in addition, the cut sealing sheet 106 is still connected to the wall of the convex chamber structure 109 and will not fall off the cylindrical structure 102; When the mixed material is to be used, there is no need to remove the container closure device from the container neck. Just open the easy-open cover 22 to allow the mixed material to pass through the channel structure 206 at the rear end of the control cover 2 and finally be discharged to achieve the purpose of using the mixed material.

[0089] In addition, it should be noted that Fig.10 As shown, on the outer wall of the sealing sheet 106 of the inner cover 1, a groove structure is provided between the two convex chamber structures 109. When the two sharp structures 201 generate a thrust on the two supporting and pressing structures 108 and push the cutout of the sealing sheet 106 to the outside of the cylinder circumference structure 102, the sealing sheet 106 can be easily bent at the groove structure, which is conducive to smoothly realizing the two cutouts of the sealing sheet to form two funnel-shaped material outlets.

[0090] In addition, by changing the cutting direction of the thinned connecting structure 107 by the sharp structure 201 of the control cover 2, and changing the relative position between the supporting structure 108 and the convex chamber structure 109, not only can the container closure device of this embodiment achieve different requirements of screw release mode, screw direction, use method and use function; it can also meet various forms of industrial filling, capping and assembly requirements.

[0091] Example 4. Product qualification rate influence test.

[0092] When the inner cover 1 described in Example 2 is produced by an injection mold, the injection gate is set at the center of the inner wall of the sealing sheet 106 of the barrel structure 102.

[0093] A test was conducted to investigate the effect of different injection gate locations on the product qualification rate of the inner cover 1.

[0094] Test method: (1) The injection molding gate of the mold is set at the center of the inner wall of the sealing sheet 106, and the product obtained by injection molding is set as product A. The injection molding gate of the mold is set on the outer wall of the cover structure 101, and the product obtained by injection molding is set as product B. The size, shape, structural form and dimensions, number of mold cavities, etc. of product A and product B are exactly the same. The thickness of the connection between the head end of the cylinder structure 102 and the sealing sheet 106 is 0.20mm±0.015mm.

[0095] (2) Product A and Product B are made of the same high-density polyethylene material, and the same injection molding temperature, injection molding pressure, injection molding time, holding time, etc., and 5,000 products A and 5,000 products B are produced respectively. Both injection molded products have complete structures, no glue defects, and no flash.

[0096] (3) Randomly select 500 products A and B, and conduct sealing tests on the key sealing structure between the sealing sheet and the inner wall of the head end of the cylinder circumference structure 102, which is connected by thinning, to determine the product qualification rate.

[0097] (4) Test method: Use a leakage and sealing strength tester to test, pressurize the inner cover 1 product from the tail end opening to 200KPa, maintain the pressure underwater for 1 minute, and observe whether there is any leakage.

[0098] Test results: 500 products 1A, 0 air leakage, 100% sealing pass rate, 500 products B, 287 air leakage, 42.6% sealing pass rate. It can be seen that the injection gate of the inner cover 1 is set at the center of the inner wall of the sealing sheet 106, and the sealing pass rate of the product reaches 100%. Compared with the injection gate set on the outer wall of the cover surrounding structure 101, the sealing pass rate of the product has a very significant difference.

[0099] Example 5. Test on the impact of product qualification rate.

[0100] The inner cover 1 described in Example 2 is used. When an injection mold is used for production, the injection gate is set at the center of the inner wall of the sealing piece 106. The different thicknesses of the connection between the head end of the barrel structure 102 and the sealing piece 106 are tested to determine the influence of the product qualification rate of the inner cover 1.

[0101] Test method: (1) The injection gate of the mold is set at the center of the inner wall of the sealing sheet 106, and the same high-density polyethylene material is used. The same injection temperature, injection pressure, injection time, holding time, etc. are used. The thickness of the head end and the end of the cylinder circumference structure 102 are set to 0.06mm, 0.10mm, 0.15mm, 0.20mm, 0.25mm, 0.30mm, and 0.35mm respectively, with a deviation range of ±0.015mm; 5000 inner cover 1 products are produced respectively, and the injection molded products have complete structure, no glue deficiency, and no flash.

[0102] (3) Randomly select 500 inner cover 1 products, and conduct sealing tests on the key sealing structure where the head end of the cylinder circumference structure 102 and the sealing sheet 106 are connected by thinning, and determine the product qualification rate.

[0103] (4) Test method: Use a leakage and sealing strength tester to test, pressurize the inner cover 1 product from the tail end opening to 200KPa, maintain the pressure underwater for 1 minute, and observe whether there is any leakage.

[0104] Test results: The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.06 mm, the number of air leaks is 49, and the sealing qualification rate is 90.2%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.10 mm, the number of air leaks is 0, and the sealing qualification rate is 100%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.15 mm, the number of air leaks is 0, and the sealing qualification rate is 100%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.20 mm, the number of air leaks is 0, and the sealing qualification rate is 100%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.25 mm, the number of air leaks is 0, and the sealing qualification rate is 100%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.30 mm, the number of air leaks is 0, and the sealing qualification rate is 100%; The thickness of the connection between the head end of the cylinder circumference structure 102 and the sealing sheet 106 is 0.35 mm, the number of air leaks is 0, and the sealing qualification rate is 100%.

[0105] Example 6: A packaging composition comprising two independently sealed materials.

[0106] A packaging composition, comprising a container, a container closing device, a first material 4, and a second material 5, wherein the container is a container having an open neck, and the container closing device is the container closing device described in any one of Embodiments 1 to 3, which is installed on the neck of the container to close the opening of the container so that the packaging container is in a sealed state; The first material 4 is in the main chamber 301 of the container, and the second material 5 is in the cylindrical structure 102 of the container closure device; 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 liquid, 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. The solid material is preferably a solid powder material, a solid granular material, a pill material, or a tablet material. The solid granular material includes but is not limited to effervescent granules, rapidly disintegrating granules, and ordinary granules used in pharmacy, etc. The pill material includes but is not limited to micropills and large pills used in pharmacy, and the tablet material includes but is not limited to effervescent tablets, dispersible tablets, rapidly disintegrating tablets, and ordinary tablets used in pharmacy. The liquid material includes a water-based liquid material or a fat-soluble liquid material.

[0107] Example 7. Application.

[0108] Use of the container closure device described in any one of Examples 1 to 3, or the packaging composition containing two independently sealed materials described in Example 6, 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 device, sanitary product, cosmetics or daily necessities containing liquid ingredients.

[0109] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0110] It should be understood that, as used herein, the singular form "a" or "an" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the items listed in association. The serial numbers of the embodiments disclosed in the above embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0111] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A container closure device for releasing materials by inner cross-cutting, 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 container closing device comprises an inner cover and a control cover, wherein: The inner cover has a cover surrounding structure and a tube surrounding structure, the cover surrounding structure and the tube surrounding structure are connected together to form a ring-shaped structure, a thread or a blocking structure is provided on the inner wall of the cover surrounding structure, and the inner cover is provided with a first buckle and a first positioning stop buckle; The first buckle is arranged at any of the following positions: the outer wall of the cover surrounding structure, the rear end of the cover surrounding structure, or the outer wall of the rear end of the tube surrounding structure; The first positioning stop buckle is arranged at any of the following positions: the rear end of the cover surrounding structure, the outer wall of the cover surrounding structure, the rear end of the cylinder surrounding structure, or the inner wall of the cylinder surrounding structure; The tail end of the cylinder circumference structure is open, the head end of the cylinder circumference structure is provided with a sealing sheet, and the inner wall of the sealing sheet is provided with a supporting and pressing structure in a convex structure; The head end of the cylinder circumference structure and the part 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 thinned connection structure; A convex chamber structure is provided at the portion where the cylinder circumference structure is connected to the sealing sheet, and the convex chamber structure is recessed from the inner wall of the first end of the cylinder circumference structure and protrudes from the outer wall of the first end of the cylinder circumference structure; The control cover is a cylindrical structure, and a sharp structure is arranged inside the control cover. The sharp structure is protruding and points to the inner wall of the side of the cylindrical structure of the control cover. The sharp structure is a spike-like structure or a sharp structure. The sharp structure is connected to the inner wall of the control cover through a sheet structure, an arc sheet structure or a cylindrical structure. The control cover is provided with a second buckle and a second positioning stop buckle, the second buckle is provided on the inner wall of the side enclosure of the control cover, and the second positioning stop buckle is provided at any of the following positions: the inner wall of the side enclosure of the control cover, the inner wall of the rear end of the control cover, the outer wall of the sheet structure, the arc sheet structure or the cylindrical structure; The control cover and the inner cover can be assembled together to form a container closing device by interlocking the second snap and the first snap, wherein the second positioning stop buckle of the control cover and the first positioning stop buckle of the inner cover can be connected to each other, and the sharp structure of the control cover is in the convex chamber structure of the inner cover.

2. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: The container closure device can be connected to the container neck through the threads provided on the inner wall of the cover surrounding structure and the threads provided on the outer wall of the container neck, so that the container closure device can be installed on the container neck; Alternatively, the container closing device can be installed on the container neck by connecting the blocking structure provided on the inner wall of the cover surrounding structure with the blocking structure provided on the outer wall of the container neck.

3. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: The rear end of the control cover is in a closed shape; Alternatively, a channel structure is provided at the rear end of the control cover, the channel structure has an opening or is in an opening shape, and the channel structure is connected to the internal space of the control cover.

4. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: The control cover and the inner cover can rotate with each other, and the sharp structure of the control cover can slide from the convex chamber structure of the sealing plate and cut the thinning connection structure of the cylinder circumference structure. When the thinning connection structure is cut to a predetermined position, the first positioning stop buckle and the second positioning stop buckle can engage with each other to prevent the control cover and the inner cover from rotating, and the sharp structure can engage with the supporting and pressing structure on the sealing plate, so that the sharp structure generates a thrust on the supporting and pressing structure, thereby pushing the cut of the sealing plate to the outside of the cylinder circumference structure.

5. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: The thickness of the connection between the head end of the cylinder circumference structure and the sealing sheet is 0.1mm to 0.45mm; The inner cover is prepared by an injection mold, and the injection gate of the inner cover is arranged at the center position of the inner wall of the sealing sheet or the center position of the outer wall of the sealing sheet.

6. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: A first positioning stop buckle is provided on the inner cover, a convex chamber structure is provided on the cylinder circumference structure, a supporting and pressing structure is provided on the sealing sheet, and a second positioning stop buckle and a sharp structure are provided on the control cover; Alternatively, the inner cover is provided with two first positioning stop buckles symmetrically distributed, the cylinder circumference structure is provided with two symmetrically distributed convex chamber structures, the sealing sheet is provided with two symmetrically distributed supporting and pressing structures, and the control cover is provided with two symmetrically distributed second positioning stop buckles and two symmetrically distributed sharp structures.

7. A container closure device for releasing materials through inner cross-cutting according to claim 1, characterized in that: The cover surrounding structure of the inner cover is located inside the control cover; Alternatively, the cover surrounding structure of the inner cover is located at the lower part of the control cover, and a two-layer structure is formed between the control cover and the cover surrounding structure of the inner cover.

8. An inner cover of a container closure device, characterized in that: The inner cover has a cover surrounding structure and a tube surrounding structure, the cover surrounding structure and the tube surrounding structure are connected together to form a ring-shaped structure, a thread or a blocking structure is provided on the inner wall of the cover surrounding structure, and the inner cover is provided with a first buckle and a first positioning stop buckle; The first buckle is arranged at any of the following positions: the outer wall of the cover surrounding structure, the rear end of the cover surrounding structure, or the outer wall of the rear end of the tube surrounding structure; The first positioning stop buckle is arranged at any of the following positions: the rear end of the cover surrounding structure, the outer wall of the cover surrounding structure, the rear end of the cylinder surrounding structure, or the inner wall of the cylinder surrounding structure; The tail end of the cylinder circumference structure is open, the head end of the cylinder circumference structure is provided with a sealing sheet, and the inner wall of the sealing sheet is provided with a supporting and pressing structure in a convex structure; The head end of the cylinder circumference structure and the part 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 thinned connection structure; The thickness of the connection between the head end of the cylinder circumference structure and the sealing sheet is 0.1mm to 0.45mm; A convex chamber structure is provided at the portion where the cylinder circumference structure is connected to the sealing sheet, and the convex chamber structure is recessed from the inner wall of the first end of the cylinder circumference structure and protrudes from the outer wall of the first end of the cylinder circumference structure; The inner cover is prepared by an injection mold, and the injection gate of the inner cover is arranged at the center position of the inner wall of the sealing sheet or the center position of the outer wall of the sealing sheet.

9. The inner cover of a container closure device according to claim 8, 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 inner cover can be connected to the outer wall of the container neck through the threads provided on the inner wall of the cover surrounding structure and the threads provided on the outer wall of the container neck, so that the inner cover can be installed on the container neck; Alternatively, the inner cover can be connected to the container neck through a blocking structure provided on the inner wall of the cover surrounding structure and a blocking structure provided on the outer wall of the container neck, so that the inner cover can be installed on the container neck.

10. A control cover for a container closure device, characterized in that: The control cover is a cylindrical structure, and a sharp structure is arranged inside the control cover. The sharp structure is protruding and points to the inner wall of the side of the cylindrical structure of the control cover. The sharp structure is a spike-like structure or a sharp structure. The sharp structure is connected to the inner wall of the control cover through a sheet structure, an arc sheet structure or a cylindrical structure. The control cover is provided with a second buckle and a second positioning stop buckle, the second buckle is provided on the inner wall of the side enclosure of the control cover, and the second positioning stop buckle is provided at any of the following positions: the inner wall of the side enclosure of the control cover, the inner wall of the rear end of the control cover, the outer wall of the sheet structure, the arc sheet structure or the cylindrical structure; The rear end of the control cover is in a closed shape, or the rear end of the control cover is provided with a channel structure, the channel structure has an opening or is in an opening shape, and the channel structure is connected to the internal space of the control cover.

11. A packaging container, characterized in that: The packaging container is composed of the container closure device according to claim 1 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; The container closure device can be installed on the container neck by connecting the thread provided on the inner wall of the cover surrounding structure with the thread provided on the outer wall of the container neck; or, the container closure device can be installed on the container neck by connecting the blocking structure provided on the inner wall of the cover surrounding structure with the blocking structure provided on the outer wall of the container neck.

12. A packaging composition, characterized in that: The packaging composition is composed of two materials, the container closure device according to claim 1 and a container, wherein the container comprises a container neck with an opening and a main body chamber, and the container neck is provided with a thread or a blocking structure that can be connected to the container closure device; The container closure device can be connected to the container neck by the threads provided on the inner wall of the cover surrounding structure and the threads provided on the outer wall of the container neck, so that the container closure device can be installed on the container neck; or the container closure device can be connected to the container neck by the blocking structure provided on the inner wall of the cover surrounding structure and the blocking structure provided on the outer wall of the container neck; The main body of the container contains one material and the container closure contains another material.

13. The container closure device of claim 1 or the method for assembling a packaging container of claim 11, characterized in that: The assembly method comprises: extending the sharp-shaped structure of the control cover into the cylindrical structure of the inner cover, connecting the second positioning stop buckle of the control cover with the first positioning stop buckle of the inner cover, and placing the sharp-shaped structure in a position directly opposite to the convex chamber structure of the inner cover; applying pressure and utilizing the deformation of the materials of the control cover and the inner cover to make the first buckle of the inner cover and the second buckle of the control cover engage with each other, and placing the sharp-shaped structure in the convex chamber structure of the inner cover, so that the inner cover and the control cover can be assembled together to form a container closing device.

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