A container closing device and its component and packaging container

Abstract

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

Description

Technical Field

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

[0002] In many applications such as mixed packaging of different materials, it is very necessary to release each material into another material shortly before using the mixture of various materials. It is usually impossible or undesirable to store products in a pre-mixed form because when the products are stored as a mixture for a period of time, they may react with each other unexpectedly or cause the quality of the mixture to deteriorate. Common examples are, for example, two or more 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 and application including the closure device.

[0006] 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] A container closure device comprises a cover member and a release member, wherein:

[0009] The container has an open container neck and a main body chamber, and a second buckle is arranged on the outer wall of the container neck, and a second stopper is arranged on the inner wall of the container neck;

[0010] The cover member comprises a cover surrounding structure, a cavity tube structure and a channel structure, wherein the cover surrounding structure and the cavity tube structure are connected together to form an annular structure, and a first buckle, a third buckle and a first positioning stop buckle are arranged on the cover member, wherein the first buckle is arranged on the inner wall of the cover surrounding structure, and the third buckle and the first positioning stop buckle are arranged on the outer wall of the cavity tube structure;

[0011] The head end of the cavity tube structure is provided with a sealing sheet. The head end of the cavity tube structure and the part connected to the sealing sheet are provided with a slope structure to reduce their thickness, and then connected to the sealing sheet to form a thinning connection structure. Such a structural setting enables the head end of the cavity tube structure and the sealing sheet to achieve a good sealing effect through the thinning connection structure, and is also conducive to being cut smoothly; preferably, the thickness of the head end of the cavity tube structure connected to the sealing sheet is 0.08mm-0.55mm, preferably 0.1mm-0.45mm, and most preferably 0.2mm-0.4mm; the cavity tube structure can accommodate materials;

[0012] A supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet;

[0013] An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet, wherein the recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet;

[0014] The tail end of the cavity tube structure is provided with a channel structure connected to the internal space of the cavity tube structure, and the channel structure has an opening or is in the shape of an opening, or the channel structure can be regarded as an extension of the cavity tube structure; further, 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. For example, an easy-to-remove sealing film is installed on the tail end of the channel structure by bonding or welding to seal the channel structure; for another example, a rubber plug is installed on the channel structure to seal the channel structure, and when necessary, the rubber plug can be removed, poked or punctured, such as for sealing the packaging container of the drug injection, and the packaging container of the drug oral liquid. Preferably, a threaded or snap-fit ​​structure is provided on the channel structure, and a sealing cover with a threaded or snap-fit ​​structure, such as a threaded cover or an easy-to-pull cover, is installed on the channel structure by a threaded or snap-fit ​​structure to seal the channel structure;

[0015] The first buckle of the cover member can be connected to the second buckle on the container neck, and the cover member and the container neck can rotate relative to each other.

[0016] The release member is a cylindrical structure, the outer wall of the release member is provided with a first stopper, the inner wall of the release member is provided with a fourth buckle and a cutting structure protruding from the inner wall of the release member, and the inner wall of the release member or the tail end of the release member is provided with a second positioning stop buckle;

[0017] The release member can be sleeved on the outer wall of the cavity structure of the cover member, the second positioning stop buckle of the release member and the first positioning stop buckle of the cover member can be connected to each other, and the cutting structure of the release member can be located in the L-shaped recessed chamber structure of the cavity structure, the fourth buckle of the release member and the third buckle of the cover member can be buckled together, and the cover member and the release member can rotate relative to each other;

[0018] The first catch of the release member can be connected to the second catch on the container neck to fix the release member on the container neck, and the release member and the container neck cannot rotate relative to each other.

[0019] The cutting structure provided on the release member of the present invention comprises a sheet-like or arc-like structure with a sharp structure, such as a sheet-like structure with a spike-like, blade-like or sharp structure, so as to facilitate it to cut the sealing sheet.

[0020] 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 purpose is to enable the cutting structure to engage with the supporting and pressing structure on the sealing sheet when the cutting structure of the releasing member cuts the sealing sheet to a predetermined position, and to generate a thrust on the supporting and pressing structure, thereby pushing the cut of the sealing sheet to the outside of the cavity tube structure, so as to facilitate the smooth release of the material in the cavity tube structure to the container.

[0021] The cover member and the release member of the present invention can be assembled together to form a container closing device, and the container closing device is installed on the container neck to seal the opening of the container neck to close the container to form a packaging container, and the cover member and the release member can rotate relative to each other.

[0022] The structural functions and interactions of the container closure device of the present invention are as follows: the release member is sleeved on the outer wall of the cavity structure of the cover member, so that the first positioning stop block of the cover member and the second positioning stop block buckle of the release member are connected to each other, which plays a positioning role, and the cutting structure of the release member is located in the L-shaped recessed chamber structure of the cover member, and the third buckle of the cover member and the fourth buckle of the release member are mutually buckled together, so that the cover member and the release member are assembled at a preset position to form a container closure device; the positioning function of the first positioning stop block and the second positioning stop block ensures that the cavity structure and the release member are in a stable position during assembly, and the cutting structure of the release member is in the recessed chamber structure of the cover member, so as to prevent the cutting structure from accidentally puncturing or cutting the sealing sheet at the head end of the cavity structure, and ensure that the cover member and the release member are in a relatively stable position during and after assembly;

[0023] Furthermore, the material is filled into the cavity structure through the opening of the channel structure of the cover member, and the opening of the channel structure is sealed by a channel sealer, so that the material is sealed and stored in the cavity structure;

[0024] Furthermore, by connecting and buckling the first buckle of the cover member with the second buckle on the container neck, and connecting the first catch on the release member with the second catch on the container neck, the container closing device can be installed on the container neck and the opening of the container neck can be closed.

[0025] When in use, by screwing the cover member, the cover member and the releasing member rotate relative to each other, the cutting structure of the releasing member starts to slide from the recessed chamber structure, the cutting structure rotates around the cavity tube structure, and the cutting structure produces a cross-cutting effect on the thinning connecting structure of the cavity tube structure, so that the sealing sheet is cut. When cutting to a predetermined position, the first positioning stop buckle and the second positioning stop buckle engage with each other to prevent the cover member and the releasing member from rotating. At the same time, the cutting structure and the supporting and pressing structure on the sealing sheet engage with each other, so that the cutting structure produces a thrust effect on the supporting and pressing structure, pushing the cut of the sealing sheet to the outside of the cavity tube structure to form a funnel-shaped material outlet, so that the material contained in the cavity tube structure can be released into the container and mixed with the material in the container, thereby achieving the purpose of sealing, storing and releasing the material in the cavity tube structure; in addition, the sealing sheet after cutting is still connected to the wall of the recessed chamber structure and will not fall off from the cavity tube structure.

[0026] When the mixed material is to be used, the channel seal only needs to be opened, and the container closure device is still installed on the container neck, and the mixed material can be used.

[0027] In the container closing device described in the present invention, a first positioning stop buckle, a recessed chamber structure and a supporting and pressing structure are arranged on the cover member, and correspondingly, a second positioning stop buckle and a cutting structure are arranged on the release member. Such an arrangement enables the sealing sheet to form a funnel-shaped material outlet after the thinning connecting structure of the cavity structure is cut, which is conducive to the smooth release of the material.

[0028] In the container closing device described in the present invention, the cover member is provided with two first positioning stop buckles distributed in symmetrical positions, two recessed chamber structures distributed in symmetrical positions and two supporting and pressing structures distributed in symmetrical positions. Correspondingly, the release member is provided with two second positioning stop buckles distributed in symmetrical positions and two cutting structures distributed in symmetrical positions. Such a configuration enables the sealing sheet to form two funnel-shaped material outlets after the thinning connecting structure of the cavity structure is cut, which is conducive to the smooth release of the material.

[0029] The "distributed in symmetrical positions" mentioned in the present invention means that the structure is distributed in a position according to the symmetrical structure or array structure, with the central axis of the circumferential body structure or circumferential body component in which it is located as the symmetrical axis. For example, with the central axis of the cover surrounding structure of the cover member or the cylinder structure of the cavity structure as the symmetrical axis, two first positioning stop buckles, two recessed chamber structures and two supporting and pressing structures are arranged according to the arrangement of the symmetrical structure or array structure. Similarly, with the central axis of the cylinder structure of the release member itself as the symmetrical axis, two second positioning stop buckles and two cutting structures are arranged according to the arrangement of the symmetrical structure or array structure.

[0030] In addition, the container closing device of the present invention can achieve or meet different requirements of screwing release methods, screwing directions, usage methods and usage functions by changing the relative position between the supporting structure of the cover member and the recessed chamber structure, changing the positions of the first positioning stop buckle and the second positioning stop buckle when they are initially engaged, and changing the direction of mutual rotation between the cover member and the releasing member, that is, changing the screwing direction, and then changing the direction of the cutting structure when cutting the thinned connecting structure of the cavity structure.

[0031] The container closure device of the present invention is installed at the opening of the container neck, and its release member is located inside the container neck. The sealing performance of the container is only determined by the sealing link between the cover member and the container neck, which is the only control link of the sealing performance of the container and is very beneficial to the control of the sealing performance of the container. The sealing performance between the cover member and the opening of the container neck can be controlled by:

[0032] The outer wall of the cavity structure and the inner wall of the container neck are in close contact to achieve sealing between the cover member and the opening of the container neck;

[0033] Alternatively, a tight ring structure is provided on the cover member, so that the tight ring structure and the inner wall of the container neck are in close contact, so as to achieve sealing between the cover member and the opening of the container neck. For example, a tight ring structure is provided on the inner wall of the cover surrounding structure of the cover member, or on the inner wall where the cover surrounding structure and the cavity tube structure are connected. The tight ring structure is in a cylindrical ring shape, and the sealing effect is achieved by the tight contact between the tight ring structure and the inner wall of the container neck. The tight contact structure can still maintain the sealing effect when the cover member and the container neck are rotated.

[0034] The container closure device of the present invention and the container neck opening need to be sealed or hermetically sealed with each other. On the one hand, the sealing or hermetically sealing can be achieved by the close fit between the components or structures, for example, a structure of a closing ring is provided, especially a structure of a closing ring is provided on a plastic component to be in close contact with another component, and the elastic deformation of the plastic material and the close fit of the closing ring structure are utilized to achieve the sealing effect between the two components or structures in contact with each other; on the other hand, a sealing gasket or a sealing ring can be used for mutual sealing or hermetically sealing; the sealing gasket or the sealing ring includes a method of coating a rubber material on one of the components or structures in contact with each other by injection molding, coating glue or dripping glue, or the sealing gasket or the sealing ring can be made into a separate rubber material accessory, and then the accessory is installed on one of the components or structures in contact with each other, for example, a rubber material is coated on the closing ring by injection molding, coating glue or dripping glue, or the sealing gasket or the sealing ring is made into a separate rubber material accessory, and then the accessory is installed on the closing ring, so as to achieve the sealing and hermetically sealing between the closing ring and the component or structure in contact with it.

[0035] The container closure device of the present invention is made of a polymer material by mold injection molding, the cover member is preferably made of a polyethylene (PE) material by mold injection molding, and the release member is preferably made of a polypropylene (PP) material by mold injection molding; or the cover member is preferably made of a polymer material with a lower hardness than the release member by mold injection molding.

[0036] In particular, when prepared by mold injection molding, the injection gate of the cover member is set on the inner wall or outer wall of the sealing piece of the cavity tube structure. Preferably, the injection gate of the cover member is set at the center position of the inner wall or the center position of the outer wall of the sealing piece of the cavity tube structure.

[0037] Based on the structural characteristics of the cover member of the present invention, when the injection molding process, the thickness of the connection between the sealing sheet and the head end of the cavity tube structure, the structural size and other factors are the same, the injection molding gate of the cover member is set at the center of the inner wall or the center of the outer wall of the sealing sheet. The qualified rate of the cover member obtained by injection molding for the key sealing structure between the head end of the cavity tube structure and the sealing sheet connected by thinning can reach 100%. However, when the injection molding gate of the cover member is set at other positions, the qualified rate of the key sealing structure of the cover member is significantly reduced.

[0038] The container described in the present invention includes a container neck with an opening and a main body chamber, and a buckle is provided on the outer wall of the container neck and a stopper is provided on the inner wall of the container neck, such as a container bottle with an opening neck and a neck buckle and a neck stopper, a packaging bag with an opening neck and a neck buckle and a neck stopper, etc., including containers made of polymer materials, metals, glass or ceramics. Preferably, the container is a packaging bottle made of polymer materials, such as a plastic bottle made of polyethylene terephthalate (PET), polycarbonate (PC) or its derivatives, polystyrene (PS), polypropylene (PP) or polyethylene (PE).

[0039] Description of the concepts of the present invention related terms.

[0040] The packaging container refers to a container composition formed by installing a container closure device on the neck of the container, wherein the main chamber of the container can contain materials, and the container closure device can contain other materials, and the two materials are independent of each other.

[0041] The "component" mentioned in the present invention refers to the component or constituent unit that constitutes the product.

[0042] The "component" mentioned in the present invention refers to a unit that can be separated from a product or a component, or a "component" refers to a product unit formed by assembling together; "component" and "component" sometimes have exactly the same concept.

[0043] The concepts of "head end" and "tail end" described in the present invention, the container closure device or its components, and various structures, etc., their head end refers to the end closest to the bottom of the container when the container closure device is installed on the container neck, and their other end is called the tail end.

[0044] The "buckle", "stopper" and the like described in the present invention are functional structures in the form of ribs, rib sheets or sheet structures, or structures formed by a combination of these forms;

[0045] The "structure" mentioned in the present invention refers to the component of a member or structural unit, or the "structure" represents the inherent characteristic form set on the member or structural unit;

[0046] 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.

[0047] The "L-shaped recessed chamber structure" mentioned in the present invention refers to a recessed chamber structure which is recessed from the outer wall of the first end of the cavity tube structure and the outer wall of the sealing sheet and protrudes from the interior of the cavity tube structure, and the recessed chamber structure appears to be in an "L" shape in appearance.

[0048] The concept of "cross-cutting" described in the present invention refers to the meaning of "lateral cutting", which specifically means that the present invention takes the central axis direction of the cavity tube structure as the longitudinal direction, the plane direction of the sealing sheet as the transverse direction, or the direction perpendicular to the central axis of the cavity tube structure as the transverse direction; the cutting structure rotates around the cavity tube structure, and there is no longitudinal displacement between the releasing member and the cavity tube structure, but only a transverse rotation occurs, and the thinned connecting structure of the cavity tube structure is cut.

[0049] The container closure device of the present invention can be obtained by assembling, snap-fitting, connecting, or welding the various structures or settings of the present invention by using separate parts when some structures are produced, such as by injection molds, which are difficult to produce, with low production efficiency, complicated material filling and sealing production processes, and high production costs, or the injection molds are difficult to realize their structures, or in order to meet the needs of industrial designs with different requirements. Undoubtedly, the container closure device of the present invention, no matter how it is assembled, installed, or assembled, belongs to the protection scope of the present invention.

[0050] Another aspect of the present invention provides components of a container closure device, namely, a cover component and a release component of the container closure device. The cover component and the release component of the container closure device have the technical features as described above.

[0051] Furthermore, the present invention also provides a packaging container, which is composed of the container closing device described in the present invention installed on the container neck, and the container includes a container neck with an opening and a main body chamber, and a second clip is provided on the outer wall of the container neck, and a second stopper is provided on the inner wall of the container neck; the second clip is interconnected with the first stopper on the cover member of the container closing device, and the container closing device is installed on the container neck to form a packaging container.

[0052] In particular, the container closure device and the matching container of the present invention are mutually matching packaging combinations, having the size of special or conventional matching containers, and can provide better product functions, experience, appropriate screwing force, and better material holding capacity, appearance, etc. For example, preferably:

[0053] The inner diameter of the opening of the container neck is 24.5 mm to 26.5 mm, and the inner diameter of the cavity structure of the container closure device is 19.5 mm to 24 mm; or,

[0054] The inner diameter of the opening of the container neck is 29.5 mm to 30.5 mm, and the inner diameter of the cavity structure of the container closure device is 24 mm to 28 mm; or,

[0055] The inner diameter of the opening of the container neck is 21 mm to 22 mm, and the inner diameter of the cavity structure of the container closing device is 16 mm to 20 mm.

[0056] Furthermore, the present invention also provides a packaging composition, which is composed of the container closure device described in the present invention, a container, and two materials, wherein the container includes a container neck with an opening and a main body chamber, and a second buckle is provided on the outer wall of the container neck, and a second stopper is provided on the inner wall of the container neck; the main body chamber of the container accommodates one material, the cavity structure of the container closure device accommodates another material, and the two materials are independently sealed, and preferably at least one of the two materials is a liquid material.

[0057] Furthermore, the present invention provides a container closure device and an assembly method of a packaging container thereof, the assembly method comprising:

[0058] (1) Providing the following components, including: a cover member, a release member, a channel seal, a container having an open container neck and a main chamber, wherein a second buckle is provided on an outer wall of the container neck, and a second stopper is provided on an inner wall of the container neck;

[0059] (2) Assembly of the container closure device: the release member is installed and sleeved on the outer wall of the cavity structure of the cover member, so that the first positioning stop buckle of the cover member is connected with the second positioning stop buckle of the release member, and the cutting structure of the release member is located in the L-shaped recessed chamber structure. By using pressure and utilizing the material deformation of the cover member and the release member, the third buckle of the cover member and the fourth buckle of the release member are engaged with each other, and the cover member and the release member can be assembled together;

[0060] Furthermore, the material is filled into the cavity structure through the opening of the channel structure of the cover member, and the opening of the channel structure is sealed by a channel sealer, so that the material is sealed and stored in the cavity structure;

[0061] Furthermore, the container closing device is installed on the container neck by connecting the first buckle of the cover member with the second buckle of the container neck.

[0062] The main chamber of the container contains a first material, and the cavity structure of the container closing device contains a second material. Before the container closing device is installed on the container neck, the first material is filled into the main chamber of the container through the opening of the container.

[0063] Furthermore, the container closure device and its packaging container and packaging composition provided by the present invention are used in the preparation or packaging and storage of the following products: food or beverages, drinking wine, health food, special medical formula food, medicine, medical device, sanitary product, cosmetics or daily necessities, especially in the packaging and storage of beverages, drinking wine, health food, special medical formula food, medicine, medical device, sanitary product, cosmetics or daily necessities containing liquid materials. For example, the container closure device contains liquid materials, or the container closure device contains solid materials, and the main chamber of the container contains liquid materials, etc.

[0064] The container closure device and the packaging container of the present invention can be widely used in the packaging of all materials that need to be stored independently and can be mixed and prepared immediately. Compared with the prior art, the container closure device and the packaging container of the present invention have the following innovative features.

[0065] First, the inventive structural arrangement of the cross-cutting release of the container closure device of the present invention has the following innovative features: the sealing sheet is in a complete plane state, the connection of the thinning connection connected to the sealing sheet is in the same horizontal plane, and there is no position difference between the sealing sheet and the thinning connection structure.

[0066] (1) It ensures that the cutting process of the container closure device is smooth during use, and the sealing sheet does not deform or fold after cutting, ensuring the smooth release of materials in the cavity structure;

[0067] (2) Enhanced the reliability of quality control of structural sealing of thinning connections during injection molding production;

[0068] (3) After the thinned connecting structure of the cavity structure is cut, the cut of the sealing sheet is pushed to the outside of the cavity structure by the supporting and pressing structure, and the sealing sheet is still connected to the wall of the recessed chamber structure to form a funnel-shaped material outlet. The size of the release opening of the material in the cavity is controllable, and the operation and controllability are accurate and stable. Moreover, the solid material and viscous material can be released smoothly, especially the amorphous block material, the larger solid material or the viscous material, which can be released smoothly into the container;

[0069] (4) During the use of the container closure device, the sealing sheet is cut by the sharp structure, and the cavity structure is opened by the force of the cutting. Since the sealing sheet is in a complete plane state, the connection between the thinning connection and the sealing sheet is in the same horizontal plane, and there is no difference in the height of the sealing sheet and the thinning connection structure. Therefore, when the sealing sheet is cut, the required twisting force is small, uniform and gentle, and the twisting process is well controlled, especially for the elderly, children, women and other people with small hand twisting force.

[0070] Secondly, the container closure device of the present invention is installed at the opening of the container neck, and its release member is located inside the container neck. The sealing performance of the container is only determined by the sealing link between the cover member and the container neck, which is also the only control link for the sealing performance of the container. It is very beneficial to the control of the sealing performance of the container, and is also beneficial to the production, use conditions, qualification rate, industrial production and commercial application of the container closure device.

[0071] Thirdly, the container closure device of the present invention is equivalent to a special container. The sealing of the material in the container closure device is sealed by the channel seal, which is the only control link of the sealing of the container closure device. It is very beneficial to the control of the sealing of the material in the container closure device, and is also beneficial to the material filling production and quality stability of the container closure device.

[0072] Fourthly, when using the mixture in the container, the container closure device of the present invention only needs to open the channel seal 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.

[0073] Fifthly, the container closure device of the present invention has a wide range of choices for the polymer materials produced by injection molding of the cover member and the release member. It is only necessary for the cover member to use a polymer material with a hardness lower than that of the release member, which can easily meet the quality control requirements in the industrial mass production process and is also conducive to the widespread application of the container closure device.

[0074] Sixth, the container closure device of the present invention is equipped with mutually matching and ingeniously designed snaps, positioning stop buckles, recessed chamber structures, sealing sheets, and a method for cutting the sealing sheets, which can ensure that the cover member and the release member are assembled at a preset position, and the cutting structure of the release member is in the recessed chamber structure of the cover member, thereby avoiding accidental puncture or cutting of the sealing sheet at the head end of the cavity structure by the cutting structure, which is conducive to the realization of large-scale industrial production and stable production. When in use, it is only necessary to rotate the cover member so that the cutting structure of the release member starts to slide from the recessed chamber structure to cut the sealing sheet, and only horizontal rotation occurs between the cover member and the release member without any longitudinal displacement, thereby ensuring that the sealing between the cover member and the release member remains good and stable, and also ensuring the sealing state between the release member and the container neck.

[0075] Seventhly, the container closure device of the present invention only needs to screw the cover member when in use. The cover member and the release member rotate horizontally, and no longitudinal displacement occurs between the cover member and the release member. 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.

[0076] The eighth point is that it is easy to industrialize and mass-produce. The container closure device has only two components, which are simple in composition and simple in material filling operation. It is easy to realize industrialized and mass-produced. It does not require a large buckle force during assembly, and the components are tight and stable after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 to Figure 3 : 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:

[0078] Figure 1 and Figure 2 is a schematic diagram of the structure of the cover member, the release member, the channel seal and the container, which are views from two different directions;

[0079] Figure 3 The present invention is a cross-sectional structural diagram of a container closure device composed of a cover member, a release member, and a channel seal, which is assembled with a container, wherein the container closure device is in a sealed state.

[0080] Figures 4 to 6 : is a schematic diagram of the structure of the container closure device and the container in Example 2 of the present invention, wherein:

[0081] Figure 4 and Figure 5 is a schematic diagram of the structure of the cover member, the release member, the channel seal and the container, which are views from two different directions;

[0082] Figure 6The present invention is a cross-sectional structural diagram of a container closure device composed of a cover member, a release member, and a channel seal, which is assembled with a container, wherein the container closure device is in a sealed state.

[0083] in, Figure 1 to Figure 6 Description of the mark in:

[0084] 1 cover member; 101 cover surrounding structure; 102 cavity structure; 103 channel structure; 104 first buckle; 105 first positioning stop buckle; 106 sealing sheet; 107 thinning connection structure; 108 supporting and pressing structure; 109 recessed chamber structure; 110 third buckle;

[0085] 11 channel seals;

[0086] 2 release member; 201 fourth buckle; 202 second positioning stop buckle; 203 cutting structure; 204 first stop;

[0087] 3 container; 301 container neck; 302 main chamber; 303 second buckle; 304 second stopper;

[0088] 4 first material; 5 second material. DETAILED DESCRIPTION

[0089] In the implementation process of the present invention, various embodiments and modifications produced by ordinary technicians in this field without departing from the scope and spirit of the present invention are obvious and easy to carry out. The present invention is further described below through the specific examples of the accompanying drawings, but it does not limit the present invention.

[0090] In addition, the technical solution of the present invention, including the preferred technical solution, is further described in detail by means of the accompanying drawings and by listing some optional embodiments of the present invention. It should be noted that any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, this document cannot exhaustively list all the alternative technical features and alternative technical solutions of the present invention, nor is it convenient for each implementation method of the technical feature to emphasize that it is one of the multiple optional implementation methods. Therefore, those skilled in the art should know that any technical feature and any technical solution in the present embodiment do not limit the scope of protection of the present invention, and the scope of protection of the present invention should include any alternative technical solutions that can be thought of by those skilled in the art without creative work.

[0091] Embodiment 1. A container closing device and its components and a packaging container.

[0092] refer to Figure 1 to Figure 3As shown, the container closing device provided in this embodiment is composed of a cover member 1 and a release member 2, wherein the cover member 1 has a cover surrounding structure 101, a cavity tube structure 102 and a channel structure 103, the cover surrounding structure 101 and the cavity tube structure 102 are connected together to form a ring-shaped structure, a first buckle 104 is arranged on the inner wall of the cover surrounding structure 101, a third buckle 110 and a first positioning stop buckle 105 are arranged on the outer wall of the cavity tube structure 102, the internal space of the cavity tube structure 102 can accommodate materials, a sealing sheet 106 is arranged at the head end of the cavity tube structure 102, and the thickness of the portion where the head end of the cavity tube structure 102 is connected to the sealing sheet 106 is reduced by setting an inclined surface structure, and then connected to the sealing sheet 106 to form a thinned connection structure 107, and the thickness of the portion where the head end of the cavity tube structure 102 is connected to the sealing sheet 106 is 0.1mm-0.45mm, and most preferably 0.2mm-0.4mm;

[0093] A supporting structure 108 in a convex structure is provided on the inner wall of the sealing sheet 106, and an L-shaped recessed chamber structure 109 is provided at the connection between the cavity tube structure 102 and the sealing sheet 106. The recessed chamber structure 109 is recessed from the outer wall of the head end of the cavity tube structure 102 and protrudes from the inner wall of the head end of the cavity tube structure 102, and the recessed chamber structure 109 is recessed from the outer wall of the sealing sheet 106 and protrudes from the inner wall of the sealing sheet 106;

[0094] The rear end of the cavity structure 102 is provided with a channel structure 103, which is open and connected to the inner space of the cavity structure 102. Figure 1 to Figure 3 , a thread is provided on the outer wall of the channel structure 103;

[0095] Furthermore, a channel seal 11 is used to seal the opening of the channel structure 103. As shown in the figure, the channel seal 11 uses a threaded cover, which can be connected to the threads on the outer wall of the channel structure 103, so that the threaded cover is installed at the opening of the channel structure 103 to seal the opening of the channel structure 103.

[0096] The release member 2 is a cylindrical structure, a first stopper 204 is arranged on the outer wall of the release member 2, a fourth buckle 201, a second positioning stopper 202, and a cutting structure 203 are arranged on the inner wall of the release member 2, and the cutting structure 203 is a sharp sheet or arc sheet structure and protrudes from the inner wall of the release member 2;

[0097] The release member 2 can be sleeved on the outer wall of the cavity structure 102 of the cover member 1, and the cutting structure 203 of the release member 2 can be located in the recessed chamber structure 109 of the cover member 1. The cover member 1 and the release member 2 can rotate relative to each other.

[0098] The container 3 has an open container neck 301 and a main body chamber 302 , and a second buckle 303 is provided on the outer wall of the container neck 301 , and a second stopper 304 is provided on the inner wall of the container neck 301 .

[0099] The cover member 1 and the release member 2 described in this embodiment can be assembled together to form a container closure device. The release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the second positioning stop buckle 202 of the release member 2 is connected to the first positioning stop buckle 105 of the cover member 1, which plays a positioning role, and makes the cutting structure 203 of the release member 2 in the recessed chamber structure 109 of the cover member 1. The cover member 1 and the release member 2 are assembled at a preset position, ensuring that the cavity structure 102 and the release member 2 are in a stable position during assembly, preventing the cutting structure 203 from accidentally puncturing or cutting the sealing sheet 106 at the head end of the cavity structure 102, ensuring that the cover member 1 and the release member 2 are in a relatively stable position during and after assembly, and the fourth buckle 201 of the release member 2 is buckled with the third buckle 110 of the cover member 1, so that the cover member 1 and the release member 2 can be assembled together to form a container closure device;

[0100] The first stopper 204 of the release member 2 can be connected to the second stopper 304 on the container neck 301 to fix the release member 2 on the container neck 301, and the release member 2 and the container neck 301 cannot rotate relative to each other;

[0101] The first buckle 104 of the cover member 1 can be connected to the second buckle 303 on the container neck 301 , and the cover member 1 and the container neck 301 can rotate relative to each other.

[0102] The assembly method of the container closure device of this embodiment includes:

[0103] The release member 2 is installed and sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the first positioning stop buckle 105 of the cover member 1 is connected with the second positioning stop buckle 202 of the release member 2, and the cutting structure 203 of the release member 2 is in the L-shaped recessed chamber structure 109. By using pressure and utilizing the material deformation of the cover member 1 and the release member 2, the third buckle 110 of the cover member 1 and the fourth buckle 201 of the release member 2 are engaged with each other, so that the cover member and the release member can be assembled together to form the container closing device of this embodiment, and the cover member 1 and the release member 2 can rotate relative to each other.

[0104] Furthermore, the second material 5 is filled into the cavity structure 102 through the opening of the channel structure 103 of the cover member 1, and the opening of the channel structure 103 is sealed with the threaded cover of the channel seal 11, so that the second material 5 is sealed and stored in the cavity structure 102;

[0105] Furthermore, by connecting and buckling the first snap 104 of the cover member 1 with the second snap 303 on the container neck 301, and connecting the first catch 204 of the release member 2 with the second catch 304 on the container neck 301, the container closing device can be installed on the container neck 301 to seal the neck opening of the container 3, thereby forming a packaging container.

[0106] The main chamber 302 of the container 3 contains the first material 4, and the cavity structure 102 of the container closure device contains the second material 5. Before the container closure device is installed on the container neck 301, the first material 4 is filled into the main chamber 302 of the container through the opening of the container 3.

[0107] The container closing device of this embodiment is installed on the container neck 301. The outer wall of the cavity structure 102 and the inner wall of the container neck 301 are tightly fitted together to seal the neck opening of the container 3, so that the container is closed to form a packaging container, and the cover member 1 and the release member 2 can rotate relative to each other.

[0108] When in use, by screwing the cover member 1, the cover member 1 and the release member 2 rotate relative to each other, the cutting structure 203 of the release member 2 starts to slide from the recessed chamber structure 109, and the cutting structure 203 cross-cuts the thinning connecting structure 107 of the cavity structure around the cavity structure 102, so that the sealing sheet 106 is cut. When the cutting reaches the predetermined position, the first positioning stop buckle 105 and the second positioning stop buckle 202 engage with each other to prevent the cover member 1 and the release member 2 from rotating. At the same time, the cutting structure 203 and the sealing sheet 106 are engaged with each other. The supporting and pressing structures 108 on the sealing sheet 106 are engaged with each other, and the cutout of the sealing sheet 106 is pushed toward the outside of the cavity structure 102 to form a funnel-shaped material outlet, so that the second material 5 contained in the cavity structure 102 of the container closure device can be released into the container 3 and mixed with the first material 4 in the container 3, thereby achieving the purpose of sealing, storing and releasing the materials in the cavity structure 102; in addition, the sealing sheet 106 after being cut is still connected to the wall of the recessed chamber structure 109 and will not fall off from the cavity structure 102;

[0109] When the mixed material is to be used, the channel sealing member 11, i.e. the threaded cap, only needs to be opened, and the container closing device is still installed on the container neck, and the mixed material can be used.

[0110] Embodiment 2. A container closure device and its components and a packaging container.

[0111] refer to Figures 4 to 6As shown, the container closing device provided in this embodiment is composed of a cover member 1 and a release member 2, wherein the cover member 1 has a cover surrounding structure 101, a cavity tube structure 102 and a channel structure 103, the cover surrounding structure 101 and the cavity tube structure 102 are connected together to form a ring-shaped structure, a first buckle 104 is arranged on the inner wall of the cover surrounding structure 101, a third buckle 110 and two first positioning stop buckles 105 distributed in symmetrical positions are arranged on the outer wall of the cavity tube structure 102, the internal space of the cavity tube structure 102 can accommodate materials, a sealing sheet 106 is arranged at the head end of the cavity tube structure 102, at the part where the head end of the cavity tube structure 102 is connected to the sealing sheet 106, a slope structure is arranged to reduce its thickness, and then connected to the sealing sheet 106 to form a thinned connection structure 107, the thickness of the head end of the cavity tube structure 102 connected to the sealing sheet 106 is 0.1mm-0.45mm, and most preferably 0.2mm-0.4mm;

[0112] The inner wall of the sealing sheet 106 is provided with two symmetrically distributed and protruding support structures 108, and the connection between the cavity tube structure 102 and the sealing sheet 106 is provided with two symmetrically distributed and L-shaped recessed chamber structures 109, the recessed chamber structure 109 is recessed from the outer wall of the head end of the cavity tube structure 102 and protrudes from the inner wall of the head end of the cavity tube structure 102, and the recessed chamber structure 109 is recessed from the outer wall of the sealing sheet 106 and protrudes from the inner wall of the sealing sheet 106;

[0113] The rear end of the cavity structure 102 is provided with a channel structure 103, which is open and connected to the internal space of the cavity structure 102;

[0114] Furthermore, a channel sealer 11 is used to seal the opening of the channel structure 103. As shown in the figure, the channel sealer 11 adopts an easy-open cover, preferably a commercially available easy-open cover made of metal aluminum. The easy-open cover can be connected to the channel structure 103. For example, an easy-open cover sealing machine or an easy-open cover sealing tool can be used to install the easy-open cover at the opening of the channel structure 103 to seal the opening of the channel structure 103.

[0115] The release member 2 is a cylindrical structure, and a first stopper 204 is arranged on the outer wall of the release member 2, and a fourth buckle 201, two second positioning stop buckles 202 distributed in symmetrical positions, and two cutting structures 203 distributed in symmetrical positions are arranged on the inner wall of the release member 2. The cutting structures 203 are in the form of a sharp sheet or an arc sheet and protrude from the inner wall of the release member 2.

[0116] The release member 2 can be sleeved on the outer wall of the cavity structure 102 of the cover member 1, and the two cutting structures 203 of the release member 2 can be respectively located in the two recessed chamber structures 109 of the cover member 1, and the cover member 1 and the release member 2 can rotate relative to each other.

[0117] The container 3 has an open container neck 301 and a main body chamber 302 , and a second buckle 303 is provided on the outer wall of the container neck 301 , and a second stopper 304 is provided on the inner wall of the container neck 301 .

[0118] The cover member 1 and the release member 2 described in this embodiment can be assembled together to form a container closure device. The release member 2 is sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the two second positioning stop buckles 202 of the release member 2 are respectively connected to the two first positioning stop buckles 105 of the cover member 1, which play a positioning role, and the two cutting structures 203 of the release member 2 are located in the two recessed chamber structures 109 of the cover member 1. The cover member 1 and the release member 2 are assembled at a preset position, ensuring that the cavity structure 102 and the release member 2 are in a stable position during assembly, preventing the cutting structure 203 from accidentally puncturing or cutting the sealing sheet 106 at the head end of the cavity structure 102, ensuring that the cover member 1 and the release member 2 are in a relatively stable position during and after assembly, and the fourth buckle 201 of the release member 2 is buckled with the third buckle 110 of the cover member 1, so that the cover member 1 and the release member 2 can be assembled together to form a container closure device;

[0119] The first stopper 204 of the release member 2 can be connected to the second stopper 304 on the container neck 301 to fix the release member 2 on the container neck 301, and the release member 2 and the container neck 301 cannot rotate relative to each other;

[0120] The first buckle 104 of the cover member 1 can be connected to the second buckle 303 on the container neck 301 , and the cover member 1 and the container neck 301 can rotate relative to each other.

[0121] The assembly method of the container closure device of this embodiment includes:

[0122] The release member 2 is installed and sleeved on the outer wall of the cavity structure 102 of the cover member 1, so that the first positioning stop buckle 105 of the cover member 1 is connected with the second positioning stop buckle 202 of the release member 2, and the cutting structure 203 of the release member 2 is in the L-shaped recessed chamber structure 109. By using pressure and utilizing the material deformation of the cover member 1 and the release member 2, the third buckle 110 of the cover member 1 and the fourth buckle 201 of the release member 2 are engaged with each other, so that the cover member and the release member can be assembled together to form the container closing device of this embodiment, and the cover member 1 and the release member 2 can rotate relative to each other.

[0123] Furthermore, the second material 5 is filled into the cavity structure 102 through the opening of the channel structure 103 of the cover member 1, and the opening of the channel structure 103 is sealed with the easy-open cover of the channel seal 11, so that the second material 5 is sealed and stored in the cavity structure 102;

[0124] Furthermore, by connecting and buckling the first snap 104 of the cover member 1 with the second snap 303 on the container neck 301, and connecting the first catch 204 of the release member 2 with the second catch 304 on the container neck 301, the container closing device can be installed on the container neck 301 to seal the neck opening of the container 3, thereby forming a packaging container.

[0125] The main chamber 302 of the container 3 contains the first material 4, and the cavity structure 102 of the container closure device contains the second material 5. Before the container closure device is installed on the container neck 301, the first material 4 is filled into the main chamber 302 of the container through the opening of the container 3.

[0126] The container closing device of this embodiment is installed on the container neck 301. The outer wall of the cavity structure 102 and the inner wall of the container neck 301 are tightly fitted together to seal the neck opening of the container 3, so that the container is closed to form a packaging container, and the cover member 1 and the release member 2 can rotate relative to each other.

[0127] When in use, by screwing the cover member 1, the cover member 1 and the release member 2 rotate relative to each other, and the two cutting structures 203 of the release member 2 start to slide from the two recessed chamber structures 109 respectively, and the cutting structures 203 cross-cut the thinning connecting structure 107 of the cavity structure around the cavity structure 102, so that the sealing sheet has two cuts, and when the cutting reaches the predetermined position, the two first positioning stop buckles 105 respectively engage with the two second positioning stop buckles 202 to prevent the cover member 1 and the release member 2 from rotating, and at the same time, the two cutting structures 203 are separated. The sealing sheet 106 is respectively engaged with the two supporting and pressing structures 108 on the sealing sheet 106, and the two cuts produced by the sealing sheet 106 are pushed to the outside of the cavity structure 102 to form two funnel-shaped material outlets, so that the second material 5 contained in the cavity structure 102 of the container closure device can be released into the container 3 and mixed with the first material 4 in the container 3, and finally the purpose of sealing, storing and releasing the material in the cavity structure 102 is achieved; in addition, the sealing sheet 106 after being cut is still connected to the wall of the recessed chamber structure 109 and will not fall off from the cavity structure 102;

[0128] When the mixed material is to be used, the channel sealing member 11, i.e. the pull-open lid, only needs to be opened, and the container closing device is still installed on the container neck, and the mixed material can be used.

[0129] In addition, it should be noted that Figure 5 , Figure 6 As shown, a groove structure is provided on the outer wall of the sealing sheet 106 of the cover member 1, between the two recessed chamber structures 109. When the cutting structure 203 exerts a thrust on the supporting structure 108 and pushes the cutout of the sealing sheet 106 to the outside of the cavity structure 102, the sealing sheet can be easily bent at the groove structure, and the two cutouts of the sealing sheet can be easily formed into two funnel-shaped material outlets.

[0130] Example 3. A packaging composition comprising two independently sealed materials.

[0131] A packaging composition, comprising a container closure device, a container 3, a first material 4, and a second material 5. The container 3 has an open container neck 301 and a main body chamber 302, and a second buckle 303 is arranged on the outer wall of the container neck 301, and a second stopper 304 is arranged on the inner wall of the container neck 301;

[0132] The container closing device adopts the container closing device described in Example 1 or Example 2, and the container closing device is installed on the neck of the container 3;

[0133] The first material 4 is in the main chamber 302 of the container, and the second material 5 is in the cavity structure of the cover member of the container closure device;

[0134] At least one of the first material 4 and the second material 5 is a liquid material, preferably both the first material 4 and the second material 5 are liquids, or the first material 4 is a liquid material and the second material 5 is a solid material, or the first material 4 is a solid material and the second material 5 is a liquid material.

[0135] Example 4. Use of a container closure device, a packaging container or a packaging composition.

[0136] The use of any one of the container closure devices, packaging containers or packaging compositions described in Example 1, Example 2 or Example 3 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.

Claims

1. A container closure device comprising a cover member and a release member, characterized in that: The container has an open container neck and a main body chamber, and a second buckle is arranged on the outer wall of the container neck, and a second stopper is arranged on the inner wall of the container neck; The cover component comprises a cover surrounding structure, a cavity tube structure and a channel structure, wherein the cover surrounding structure and the cavity tube structure are connected together to form a ring-shaped tube structure. A first buckle is provided on the inner wall of the cover surrounding structure, and a first positioning stop buckle and a third buckle are provided on the outer wall of the cavity tube structure; The head end of the cavity tube structure is provided with a sealing sheet, and the head end of the cavity tube structure and the portion where the cavity tube structure is 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 supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet; An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet, wherein the recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet; The tail end of the cavity tube structure is provided with a channel structure connected to the internal space of the cavity tube structure, and the channel structure has an opening or is in an opening shape; The release member is a cylindrical structure, the outer wall of the release member is provided with a first stopper, the inner wall of the release member is provided with a fourth buckle and a cutting structure protruding from the inner wall of the release member, and the inner wall of the release member or the tail end of the release member is provided with a second positioning stop buckle; The release member can be sleeved on the outer wall of the cavity structure of the cover member, the second positioning stop buckle of the release member and the first positioning stop buckle of the cover member can be connected to each other, and the cutting structure of the release member can be located in the L-shaped recessed chamber structure of the cavity structure, the fourth buckle of the release member and the third buckle of the cover member can be buckled together, and the cover member and the release member can rotate with each other; The first catch of the release member can be connected to the second catch on the container neck to fix the release member on the container neck, and the release member and the container neck cannot rotate relative to each other; The first buckle of the cover member can be connected to the second buckle on the container neck, and the cover member and the container neck can rotate relative to each other.

2. A container closure device according to claim 1, characterized in that: A channel seal is used to seal the opening of the channel structure, wherein the channel seal comprises a sealing cover, a sealing film or a sealing plug; wherein the sealing cover comprises a threaded cover or an easy-pull cover.

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

4. A container closure device according to claim 1, characterized in that: When the cover member and the release member rotate relative to each other, the cutting structure of the release member can slide from the recessed chamber structure and cut the thinned connecting structure of the cavity structure, so that the sealing sheet is cut. When the cutting reaches a predetermined position, the first positioning stop buckle and the second positioning stop buckle can engage with each other to prevent the cover member and the release member from rotating. The cutting structure can be engaged with the supporting and pressing structure on the sealing sheet so that the cutting structure exerts a thrust on the supporting and pressing structure, pushing the cutout of the sealing sheet toward the outside of the cavity structure.

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

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

7. A cover member of a container closure device, which refers to the container closure device according to claim 1, characterized in that: The cover component comprises a cover surrounding structure, a cavity tube structure and a channel structure, wherein the cover surrounding structure and the cavity tube structure are connected together to form a ring-shaped tube structure. A first buckle is provided on the inner wall of the cover surrounding structure, and a first positioning stop buckle and a third buckle are provided on the outer wall of the cavity tube structure; The head end of the cavity tube structure is provided with a sealing sheet, and the head end of the cavity tube structure and the portion where the cavity tube structure is 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 supporting and pressing structure in a convex structure is arranged on the inner wall of the sealing sheet; An L-shaped recessed chamber structure is provided at the portion where the cavity tube structure is connected to the sealing sheet, wherein the recessed chamber structure is recessed from the outer wall of the first end of the cavity tube structure and protrudes from the inner wall of the first end of the cavity tube structure, and the recessed chamber structure is recessed from the outer wall of the sealing sheet and protrudes from the inner wall of the sealing sheet; The tail end of the cavity tube structure is provided with a channel structure connected to the inner space of the cavity tube structure, and the channel structure has an opening or is in an opening shape.

8. A release member of a container closure device, which is based on the container closure device of claim 1, characterized in that: The release member is a cylindrical structure, the outer wall of the release member is provided with a first stopper, the inner wall of the release member is provided with a fourth buckle and a cutting structure protruding from the inner wall of the release member, and the inner wall of the release member or the tail end of the release member is provided with a second positioning stop buckle.

9. A packaging container, characterized in that: The packaging container is composed of the container closing device described in claim 1 installed on the container neck, the container includes a container neck with an opening and a main body chamber, and a second buckle is provided on the outer wall of the container neck and a second stopper is provided on the inner wall of the container neck, the second buckle can be interconnected with the first buckle provided on the cover member, and the second stopper can be interconnected with the first stopper provided on the release member.

10. A packaging composition, characterized in that: The packaging composition is composed of two materials and the container closure device and a container according to claim 1, wherein the container comprises a container neck with an opening and a main body chamber, and a second buckle is provided on the outer wall of the container neck, and a second stopper is provided on the inner wall of the container neck, the second buckle can be connected to the first buckle provided on the cover member, and the second stopper can be connected to the first stopper provided on the release member; The two materials are respectively contained in the main chamber of the container and the cavity structure of the container closing device, and the two materials are independently sealed.

11. The container closing device according to claim 1 or the method for assembling a packaging container according to claim 9, characterized in that: The assembly method comprises: (1) Providing the following components, including: a cover member, a release member, a channel seal, a container having an open container neck and a main chamber, wherein a second buckle is provided on an outer wall of the container neck, and a second stopper is provided on an inner wall of the container neck; (2) Assembly of the container closure device: the release member is installed and sleeved on the outer wall of the cavity structure of the cover member, so that the first positioning stop buckle of the cover member is connected with the second positioning stop buckle of the release member, and the cutting structure of the release member is located in the L-shaped recessed chamber structure. By using pressure and utilizing the material deformation of the cover member and the release member, the third buckle of the cover member and the fourth buckle of the release member are engaged with each other, and the cover member and the release member can be assembled together; Furthermore, the material is filled into the cavity structure through the opening of the channel structure of the cover member, and the opening of the channel structure is sealed by a channel sealer, so that the material is sealed and stored in the cavity structure; Furthermore, the container closing device is installed on the container neck by connecting the first buckle of the cover member with the second buckle of the container neck.

Images