Material storing and releasing device and cover component and packaging container thereof

Abstract

The utility model discloses a material storage and release device and a cover component and a packaging container thereof, the cover component is provided with a cover surrounding structure and a cavity cylinder structure, the inner wall of the cover surrounding structure is provided with threads, the tail end of the cavity cylinder structure is open, and the head end of the cavity cylinder structure is provided with a sealing piece with a thinning connecting structure and a breakthrough structure; the cover component, the sealing piece of the cover component or the independent component with the cavity cylinder structure and the sealing piece are made of a low-density polyethylene material with the tensile strength of 7.1-8.9 MPa and the elongation at break of 50%-220% in an injection molding mode through a mold. The release component is provided with a push piece structure and a bursting structure of a sharp structure or a cylindrical structure. The sealing piece can seal an opening in the tail end of the cavity cylinder structure; the material storing and releasing device has the functions of sealing, storing and releasing materials, and can be mounted at a neck opening of a container; the utility model further provides a component comprising the material storing and releasing device and a packaging container.

Description

Technical Field

[0001] This utility model relates to the field of product packaging containers, specifically to a material storage and release device, its cover component, and a packaging container. Background Technology

[0002] In many applications, such as the mixed packaging of different materials, it is essential to release each material into the other shortly before using the mixture. Pre-mixing products is often impossible or undesirable because, after being stored as a mixture for a period of time, the products may undesirably react with each other or cause a decline in the quality of the mixture. Common examples include two or more pharmaceutical components that exhibit better stability and a longer shelf life when unmixed than when mixed; or, for mixed liquid products such as beverages, liquid pharmaceuticals, special medical purpose food homogenates, liquid cosmetics, and liquid reagents, it is necessary to store two or more different materials separately during the product's shelf life to better ensure product stability, freshness, activity, or other quality improvements. Existing technologies use two or more different bottles / bags / boxes for independent packaging, which are then recombined for use, leading to inconvenience in carrying and use, and a high risk of secondary contamination.

[0003] International patent applications WO2007 / 129116 and WO2012 / 175934 disclose a container sealing device. This device has a fluid chamber in the cover component. The opening of the fluid chamber is opened by lifting the housing and driving the plug component, thereby introducing the contents of the cover component into the container. However, the above technology or other existing technologies have the following disadvantages: (1) The outlet of the material storage and release component is small, which makes it difficult to release solid materials and viscous materials smoothly, especially amorphous block materials, large solid materials or viscous materials, which are difficult to release smoothly into the container; (2) When using the mixture in the container, the entire container sealing device needs to be removed from the neck of the container, so that the inner core structure of the container sealing device is exposed to the outside of the container, which is easy to cause cross-contamination or accidental contamination of the mixture in the container; (3) In the container sealing device After the material is released into the bottle, the sealing device can be separated from the bottle. At this time, the material in the bottle has not been completely mixed. If the material is mixed evenly by shaking the bottle, the material will spill out of the bottle mouth, which is not conducive to the convenient use of consumers. The final mixing of the material has a major defect. (4) When the container sealing device is opened to release the contents into the container, the opening of the container neck is also opened at the same time, which damages the sealing of the container at the same time. It cannot meet the requirement that the contents still need to be sealed after mixing and further processed. (5) The structure of the cap component can only be used to seal liquid materials. The plug component is difficult to seal and release solid materials. The fluid chamber needs to be pressurized to release the liquid material. (6) Due to the existence of its specific plug component, after the contents are released, a lot of contents will remain in the cap component, resulting in incomplete release of contents.

[0004] Chinese Patent Publication No. CN118083344A discloses a container sealing device that can be interchanged, comprising a cover member and a release member. The cover member has a cavity structure with an open tail end and a closed head end, and the release member has a cylindrical structure with open ends, with a sharp structure on the inner wall of the head end. When using this container sealing device, the interaction between the threaded structure of the cover member and the threaded neck of the container causes the pusher structure of the release member to be pushed towards the tail end of the cavity structure by the opening edge of the container. This causes the sharp structure of the release member to puncture the sealing sheet of the cover member, pushing the sealing sheet towards... The internal cavity structure allows for the release of materials contained within it into the container, as well as mixing and blending with other materials already in the container. However, this container sealing device has the following problems: First, the sealing strip is made of conventional polymer material, making it difficult to break with appropriate twisting force. The success rate of broken sealing strips and material release is low, making it difficult for the elderly, children, and women with limited hand twisting strength to use, severely impacting the user experience and limiting the product's application range. It should be noted that, according to or referring to the requirements of GB / T17876, when the required twisting torque exceeds 3.0 Nm, the product's performance deteriorates and it cannot meet usage requirements. Second, when using the mixture inside the container, the entire sealing device needs to be removed from the container neck, exposing the cavity structure to the outside of the container, which easily leads to cross-contamination or accidental contamination of the mixture inside. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a new material storage and release device. This material storage and release device has the functions of sealing, storing and releasing materials, that is, the material storage and release function. This utility model material storage and release device can be installed at the neck opening of a container. By twisting the material storage and release device, the material storage and release device and the container can rotate relative to each other, so that the material sealed and stored in the material storage and release device can be released into the container and mixed and blended with another material in the container.

[0006] This utility model also provides a cover component and a packaging container including the aforementioned material storage and release device.

[0007] It should be noted that the container of this utility model includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with threads, such as a threaded bottle with an open neck, and a packaging bag with an open neck and neck threads.

[0008] The aforementioned material storage and release device refers to a device that can be installed at the neck opening of a container to close the neck opening and form a packaging container. The material storage and release device contains material, and by twisting the material storage and release device, the material it contains is released into the container and mixed with the material in the container, so as to achieve the function of mixing and adjusting the contents when it is about to be used. The material storage and release device and its packaging container can be widely used in the packaging of all materials that need to be stored independently and can be mixed and adjusted on the spot.

[0009] Specifically, the present invention adopts the following technical solution.

[0010] A material storage and release device comprises a cover component, a release component, and a sealing component, wherein:

[0011] The cover component has a cover structure and a cavity structure. The cover structure and the cavity structure are connected together to form an annular structure. The inner wall of the cover structure is threaded. The tail end of the cavity structure is open. The head end of the cavity structure is provided with a sealing plate. The part where the sealing plate connects to the inner wall of the head end of the cavity structure has a beveled structure to reduce its thickness. It then connects to the inner wall of the head end of the cavity structure to form a thinned connection structure. This structure provides a thinned connection between the sealing plate and the inner wall of the head end of the cavity structure, achieving both good sealing and easy penetration. Preferably, the thickness of the sealing plate is 0.75mm to 1.2mm, more preferably 0.8mm to 1mm, and the thickness at the connection between the sealing plate and the inner wall of the head end of the cavity structure is 0.06mm to 0.45mm, more preferably 0.08mm to 0.35mm, and most preferably 0.12mm to 0.2mm. The cavity structure can accommodate materials.

[0012] A sheet-like traction structure is provided between the sealing sheet of the cover component and the inner wall of the cavity structure. The traction structure can keep the sealing sheet connected to the cavity structure after the puncture structure punctures the sealing sheet, and prevent it from detaching from the cavity structure. The traction structure is provided between the inner wall of the sealing sheet and the inner wall of the cavity structure, or the traction structure is provided between the outer wall of the sealing sheet and the inner wall of the cavity structure.

[0013] On the outer wall of the sealing sheet of the cover component and at the position directly opposite the pulling structure, there is a rib-shaped breakthrough structure. This breakthrough structure is more conducive to the release of the component's piercing structure. When the piercing structure pierces the thinned connecting structure of the sealing sheet of the cover component, it will first press against the breakthrough structure, so that the piercing force at this point is concentrated and enhanced, so that the twisting force required for the piercing process is smaller, and the piercing action is smoother and easier to achieve.

[0014] The cover component or its sealing sheet is made of low-density polyethylene material by injection molding, and the low-density polyethylene material has the following performance parameters: tensile strength 7.1-8.9 MPa, elongation at break 50%-220%; for example, by overmolding or by two-material injection molding, the sealing sheet of the cover component is made of the above-mentioned low-density polyethylene material by injection molding; or, the cover component is formed by assembling a separate component with a cover structure and a separate component with a cavity structure and a sealing sheet together, and the separate component with the cavity structure and the sealing sheet is made of the above-mentioned low-density polyethylene material by injection molding.

[0015] The release member has a cylindrical structure, with both the front and rear ends being open. The outer wall of the rear end of the release member is provided with a pusher structure in the form of a ring plate, and the inner wall of the front end of the release member is provided with a piercing structure in the form of a sharp or cylindrical structure. The piercing structure protrudes from the inner wall of the front end of the release member, and the protruding direction of the piercing structure is towards the rear end of the release member.

[0016] The release member can be installed and fitted onto the outer wall of the cavity structure of the cover member, and the puncture structure of the release member is directly opposite the thinning connection structure of the sealing sheet. The "puncture structure" mentioned in this utility model refers to a sharp or cylindrical structure, such as a toothed structure, a spiked structure or a cylindrical structure, to facilitate its puncture of the sealing sheet.

[0017] The sealing element seals the opening at the tail end of the cavity structure, enabling the internal space of the cavity structure to seal the material after filling, ensuring the airtightness of the material during storage; preferably, the sealing element includes a sealing film, a sealing cap, and a sealing plug, for example, the sealing film is sealed to the opening at the tail end of the cavity structure by bonding or welding.

[0018] Alternatively, the sealing cap can be installed at the tail end of the cavity structure by means of a snap-fit ​​connection or a threaded connection to seal the opening at the tail end of the cavity structure;

[0019] For example, the sealing cap can be set as a snap-on cap, so that the snap-on cap is installed at the tail end of the cavity structure by snap-on connection, thereby sealing the opening at the tail end of the cavity structure;

[0020] For example, the sealing cap can be designed as an easy-open cap, which can be installed at the tail end of the cavity structure by means of a snap-fit ​​connection, thereby sealing the opening at the tail end of the cavity structure;

[0021] For example, the sealing cap can be configured as a threaded cap, which is connected to the thread at the tail end of the cavity structure through a threaded structure, so that the threaded cap is installed at the tail end of the cavity structure to seal the opening at the tail end of the cavity structure.

[0022] In an optional implementation, preferably, the inner wall diameter of the cylindrical structure at the beginning of the cavity structure connected to the sealing plate is smaller than the inner wall diameter of the cylindrical structure at other parts of the cavity structure. This structural arrangement allows for a larger gap between the edge of the sealing plate and the inner wall of the cavity structure when the rupture structure ruptures the sealing plate and pushes it into the cavity structure. This creates a larger material outlet, which is more conducive to the release of materials and the flow of mixtures, and is particularly suitable for the storage and release of solid materials, such as coarse particles and amorphous lumps.

[0023] In an optional implementation, preferably, the sealing sheet of the cover member has a stepped sheet structure, which makes the sealing sheet have a shape with a height difference. This is beneficial because when the rupture structure ruptures the thinning connection structure of the sealing sheet, it will first rupture the part of the thinning connection structure that is closer to the rupture structure, and then rupture the other parts of the thinning connection structure. This is beneficial for the concentrated breakthrough of the rupture force, making the rupture process smooth and easy to achieve.

[0024] Most preferably, the sealing sheet of the cover member has a stepped sheet structure, and a sheet-like traction structure is provided at the thinning connection structure closer to the tail end of the cavity structure to connect the sealing sheet to the inner wall of the cavity structure. The diameter of the inner wall of the cavity structure connected to the traction structure is larger than the diameter of the inner wall of the sealing sheet connected to the cavity structure. This ensures that the sealing sheet remains connected to the cavity structure after the puncture structure punctures the sealing sheet, and does not detach from the cavity structure. A rib-like breakthrough structure is provided on the outer wall of the sealing sheet of the cover member, and at the position directly opposite the traction structure.

[0025] The function of this material storage and release device is as follows: material is filled into the cavity structure through the opening at the tail end of the cavity structure of the cover member, and the opening at the tail end of the cavity structure is sealed by a sealing element, so that the material is sealed and stored in the cavity structure; furthermore, the release member is installed and sleeved on the outer wall of the cavity structure of the cover member, and the puncture structure of the release member is aligned with the thinning connection structure of the sealing sheet, thus forming the material storage and release device described in this utility model;

[0026] In use, the material release device is placed at the opening of the neck of a container with a threaded structure, so that the cavity structure and the release component extend into the opening of the container neck, and the pusher structure of the release component contacts the rim of the container opening. The threads on the inner wall of the cover structure are connected to the threads of the container neck. Through the twisting force of the threads, the rupture structure of the release component pushes through the rupture structure, and then ruptures the thinning connection structure of the sealing sheet, pushing the sealing sheet into the cavity structure. The material in the cavity structure is released into the container and mixes with the material in the container, achieving the function of mixing and blending. At this time, the material release device is tightened at the opening of the container neck, and the material release device has a sealing function on the opening of the container neck, and the mixture in the container is in a sealed state.

[0027] When the mixed material needs to be used, simply twist the cap component in the opposite direction to unscrew the threaded connection between the inner wall of the cap structure and the neck of the container, so that the material release device can be removed from the neck of the container and the mixed material can be used; or, open the seal at the end of the cavity structure, for example, by tearing or puncturing the sealing film, opening the easy-open cap, or unscrewing the threaded cap at the end of the cavity structure, and the mixed material can be used.

[0028] The material storage and release device of this utility model is made of polymer material by injection molding, preferably polyethylene (PE) or polypropylene (PP) material by injection molding. For example, the cover component is made of polypropylene (PP) or / and polyethylene (PE) material by injection molding, and the release component is made of polypropylene (PP) material by injection molding.

[0029] Based on the structural features and functions of the cover component of this utility model, the inventors discovered that the material, model, and performance parameters of the sealing sheet of the cover component are crucial to the use of the material storage and release device. In particular, the success rate of release when the sealing sheet is punctured, the magnitude of the manual tightening force, and the smoothness of puncturing the sealing sheet are critical, affecting the quality and effectiveness of the material storage and release device. The cover component or its sealing sheet of this utility model is made of low-density polyethylene material through injection molding. The low-density polyethylene material has the following performance parameters: tensile strength 7.1–8.9 MPa, elongation at break 50%–220%, including the following four options.

[0030] The cover component of this utility model is preferably an independent component, and the entire cover component is made of low-density polyethylene (LDPE) material with a tensile strength of 7.1 to 8.9 MPa and an elongation at break of 50% to 220% by injection molding.

[0031] Alternatively, preferably, the sealing sheet of the cover component of this utility model is formed by injection molding using a mold, employing low-density polyethylene (LDPE) material with a tensile strength of 7.1 to 8.9 MPa and an elongation at break of 50% to 220%, and the sealing sheet structure is injection molded onto the cavity structure to form the cover component described in this utility model.

[0032] Alternatively, preferably, the sealing sheet of the cover component of this utility model is formed by two-material injection molding using a mold, using low-density polyethylene (LDPE) material with a tensile strength of 7.1 to 8.9 MPa and an elongation at break of 50% to 220%, to injection mold the sealing sheet structure and connect it to the cavity structure, thus forming the cover component described in this utility model.

[0033] Alternatively, preferably, the cover component of this utility model is formed by assembling a separate component with a cover structure and a separate component with a cavity structure and a sealing sheet. The separate component with the cover structure is called the cover component, and the separate component with the cavity structure and the sealing sheet is called the cavity component. The cover component and the cavity component are assembled and connected together to form a ring-shaped structure, thus forming the cover component of this utility model. The cavity component is made of low-density polyethylene (LDPE) material with a tensile strength of 7.1 to 8.9 MPa and an elongation at break of 50% to 220% by injection molding.

[0034] Specifically, during injection molding, the injection gate of the cover component is located on the inner or outer wall of the sealing sheet; or, during injection molding, the injection gate of the sealing sheet structure is located on the inner or outer wall of the sealing sheet. Preferably, the injection gate of the cover component is located at the center of the inner wall or the center of the outer wall of the sealing sheet, and most preferably, the injection gate of the cover component is located at the center of the outer wall of the sealing sheet. Based on the structural characteristics of the cover component of this utility model, the inventors have discovered that, under the same conditions of injection molding process, thickness of the thinning connection structure of the sealing sheet, and structural size, when the injection gate of the cover component is located at the center of the inner wall or the center of the outer wall of the sealing sheet, the pass rate of the key sealing structure of the cover component, which is connected to the inner wall of the first end of the cavity structure through thinning, can reach 100%. However, when the injection gate of the cover component or the injection gate of the sealing sheet structure is located in other parts, the pass rate of the key sealing structure of the cover component is significantly reduced.

[0035] This utility model material storage and release device can be used as a standalone product, screwed onto the neck opening of a matching container to release the material contained in the device into the container, where it mixes with the material in the container; or, this utility model material storage and release device can be pre-installed at the neck opening of the container by the thread of the cap component interacting with the thread of the container neck, and the neck opening of the container is sealed. In use, screwing on the material storage and release device releases the material contained in the device into the container, where it mixes with the material in the container.

[0036] The container of this invention includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with threads, such as a container bottle with an opening and a neck thread, a packaging bag with an opening and a neck thread, etc., including containers made of polymer materials, metal, glass or ceramics. Preferably, the container is a packaging bottle made of polymer materials, such as a plastic bottle made of polyethylene terephthalate (PET), polycarbonate (PC) or its derivatives, polystyrene (PS), polypropylene (PP) or polyethylene (PE).

[0037] This utility model provides an explanation of the concepts of relevant terms.

[0038] The "component" mentioned in this utility model refers to the component or unit that constitutes the product.

[0039] The term "component" as used in this utility model refers to a unit that can be separated from a product or a component, or, "component" refers to a product unit formed by assembling together; "component" and "component" sometimes have the same concept.

[0040] The concepts of "head end" and "tail end" in this utility model refer to the material storage and release device or its components, as well as various structures. Their head end refers to the end closest to the bottom of the container when the material storage and release device is installed on the neck of the container, and their other end is called the tail end.

[0041] The "buckle" and the like described in this utility model are functional structures in the form of ribs, ribs, or sheet-like structures, or structures formed by a combination of these forms;

[0042] The term "structure" as used in this utility model refers to a component or structural unit, or, "structure" describes the inherent characteristic form of a component or structural unit.

[0043] The concepts of "connection" and "linkage" in this utility model are as follows: "connection" refers to the structural relationship between the structures on the same component, or "connection" refers to the mutual contact, matching and joining, or matching and snapping between different components or parts; "linkage" refers to connecting, fixing and combining together, or forming an integral part by connecting, fixing and combining together.

[0044] The material storage and release device described in this utility model addresses situations where certain structures, such as those produced using injection molds, present significant challenges in production, including high difficulty, low efficiency, complex material filling and sealing processes, and high production costs. It also addresses situations where the injection mold cannot accurately realize the desired structure. In such cases, the various structures or features described in this utility model can be obtained by assembling, snap-fitting, connecting, or welding individual parts. Undoubtedly, the material storage and release device described in this utility model, regardless of the method of assembly, installation, or assembly, falls within the protection scope of this utility model.

[0045] Furthermore, the present invention also provides a cover component of the material storage and release device, which has all the above-described technical features of the present invention.

[0046] Furthermore, this utility model also provides a packaging container, which is composed of the material storage and release device described in this utility model installed on the neck of a container with an opening. The container includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with threads. The material storage and release device is installed on the neck of the container to form a packaging container. By screwing the cover member of the material storage and release device, the threads of the cover member are connected to the threads of the container neck. Under the interaction of the threads of the two, the cavity structure extends further into the container neck. The pusher structure of the release member is pushed by the opening edge of the container towards the tail end of the cavity structure, so that the rupture structure ruptures the thinning connection structure of the sealing sheet and pushes the sealing sheet into the interior of the cavity structure, so that the material in the cavity structure is released into the container and mixed with the material in the container. Finally, the purpose of sealing, storing and releasing the material in the material storage and release device is achieved. It is convenient and simple to use, and easy to install, fill and produce in an industrial manner.

[0047] In particular, the material storage and release device and its matching container described in this utility model are a mutually matching packaging combination, with special or conventionally matched container sizes, which can provide better product functions, user experience, appropriate turning force, and better material capacity and appearance, for example:

[0048] The inner diameter of the opening at the neck of the container is 24.5 mm to 26.5 mm, and the inner diameter of the cavity structure of the material storage and release device is 19.5 mm to 22 mm; or,

[0049] The inner diameter of the opening at the neck of the container is 29.5 mm to 30.5 mm, and the inner diameter of the cavity structure of the material storage and release device is 24 mm to 26 mm; or,

[0050] The inner diameter of the opening at the neck of the container is 21mm to 22mm, and the inner diameter of the cavity structure of the material storage and release device is 16mm to 18mm.

[0051] Furthermore, the present invention also provides a packaging composition comprising a material and the material storage and release device described herein, wherein the material is located in the cavity structure of the cover member.

[0052] The main chamber of the preferred container contains liquid material. The preferred material containing the material storage and release device is a liquid material, a solid material, a mixture of solid and liquid, or a slurry; the solid material is preferably a solid powder, solid granule material, pill material, or tablet material. The solid granule material includes, but is not limited to, pharmaceutically applicable effervescent granules, rapidly disintegrating granules, ordinary granules, lumps, amorphous lumps, etc. The liquid material includes water-based liquid materials or fat-soluble liquid materials. For example, water-based liquid materials preferably include water, aqueous solutions or aqueous suspensions of carbohydrates, aqueous solutions or aqueous suspensions of plant extracts, animal emulsions, aqueous emulsions of animal milk powder, aqueous solutions or aqueous emulsions of plant proteins, etc.

[0053] The material storage and release device, its packaging container, and packaging composition of this utility model can be assembled according to the following method, which includes:

[0054] (1) Provide the following components, including: cover member, release member, and seal;

[0055] (2) Assembly of the material storage and release device: The material is filled into the cavity structure of the cover component, and the opening at the tail end of the cavity structure is sealed with a sealing element so that the material is sealed and stored in the cavity structure; the release component is then installed and fitted onto the outer wall of the cavity structure of the cover component, and the puncture structure of the release component is aligned with the thinning connection structure of the sealing sheet, thus forming the material storage and release device described in this utility model.

[0056] Furthermore, the material storage and release device is placed at the opening of the container neck, so that the cavity structure and the release member extend into the opening of the container neck, and the pusher structure of the release member contacts the rim of the container opening. The container includes a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with threads.

[0057] The main chamber of the container contains a first material, and the material storage and release device contains a second material. Before the material storage and release device is installed in the neck of the container, the first material is filled into the main chamber of the container through the opening of the container.

[0058] Furthermore, the material storage and release device and its packaging container provided by this utility model are applicable in the preparation or packaging and storage of the following products: food or beverages, alcoholic beverages, health foods, foods for special medical purposes, pharmaceuticals, medical devices, hygiene products, cosmetics, or daily necessities, especially in the packaging and storage of beverages, alcoholic beverages, health foods, foods for special medical purposes, pharmaceuticals, medical devices, hygiene products, cosmetics, or daily necessities containing liquid materials. For example, the material storage and release device may contain liquid materials, or the material storage and release device may contain solid materials, and the main chamber of the container may contain liquid materials, etc.

[0059] Compared with the prior art, the material storage and release device, its cover component, and packaging container of this utility model have the following innovative features.

[0060] Firstly, the cover component of the material storage and release device of this utility model has an ingenious and special structure. The first end of the cavity structure is provided with an injection-molded sealing sheet, which makes the first end extremely airtight. This not only makes the injection molding of the cover component easy to achieve, but more importantly, its sealing performance in containing materials does not depend on the mutual matching with the release component.

[0061] Secondly, this utility model of material storage and release device solves the problem of sealing the opening at the end of the cavity structure when liquid materials are contained in the cover component by using sealing elements, such as aluminum foil film, through heating and bonding or welding, or by using threaded caps or easy-open caps to seal the opening at the end of the cavity structure. This can ensure that the material is firmly and tightly sealed, which not only prevents the leakage of liquid materials, but also meets the requirements for handling the sealed liquid materials in production processes such as heat treatment and high-temperature sterilization, thus broadening the performance and application range of the container sealing device.

[0062] Thirdly, when using the mixture inside the container, the material storage and release device of this utility model only needs to open the seal, without having to remove the entire material storage and release device from the neck of the container. This avoids the inner core structure of the material storage and release device being exposed to the outside of the container, which could lead to cross-contamination or accidental contamination of the mixture inside the container.

[0063] Fourthly, the release component of the material storage and release device of this utility model is made of a specific polymer material. During use, the feasibility of the sealing sheet being punctured and the puncture pass rate are significantly improved. The twisting force (torque) is appropriate and gentle, providing a good user experience. It is especially suitable for the elderly, children, women and other people with low hand twisting force.

[0064] Fifthly, the sealing sheet of the cavity structure is equipped with a rib-like breakthrough structure. This breakthrough structure is more conducive to the sealing sheet being punctured, as it will be pressed first, concentrating and enhancing the puncturing force at this point. This makes the puncturing process of the sealing sheet smoother and easier to achieve. Only a small twisting force is needed to puncture the thinned connecting structure of the sealing sheet first. Once a breakthrough point is formed, the subsequent puncturing and opening of the sealing sheet will be smoother. This makes the twisting force (torque) when the sealing sheet is punctured appropriate and gentle, providing a smooth and pleasant experience. It is especially easy for the elderly, children, women, and other people with weak hand twisting force to use, and provides a good manual control feel.

[0065] Sixthly, the material storage and release device of this utility model can increase the material storage capacity by increasing the length of the tail end or the head end of the cavity structure, so as to meet the sealed storage of a larger amount of material and expand its application range.

[0066] Seventhly, when using this material storage and release device, the material will not spill out of the bottle mouth when the container is shaken to mix the material evenly. It has good operation and a smooth manual twisting feel. After the material is released, there is little material residue in the cap component, and it can be completely mixed by shaking the container.

[0067] Eighthly, the material storage and release device of this utility model is simple, convenient, and highly operable. Simply by turning the material storage and release device, the independently sealed material inside can be released into the main chamber of the container. Furthermore, after the material is released into the main chamber, the packaging container remains completely sealed, satisfying the requirement that the contents, even after mixing, still need to be sealed and further processed, such as shaking to homogenize, settling, fermentation, sedimentation, short-term storage, or continued storage. Attached Figure Description

[0068] Figures 1-3 This is a schematic diagram of the material storage and release device and container in Embodiment 1 of this utility model, wherein:

[0069] Figure 1 and Figure 2 These are structural schematic diagrams of the cover component, release component, seal, and container, shown from two different directions.

[0070] Figure 3 It is a cross-sectional view of a material storage and release device assembled with a cover component, a release component, and a sealing component, and assembled with a container, wherein the material storage and release device is in a sealed state.

[0071] in, Figures 1-3 Explanation of the markings in the text:

[0072] 1. Cover component; 101. Cover structure; 102. Cavity structure; 103. Thread A; 104. Sealing plate; 105. Thinning connection structure; 106. Pulling structure; 107. Snap-on A; 108. Breakthrough structure;

[0073] 11. Seals;

[0074] 2. Release component; 201. Push plate structure; 202. Plunging structure; 203. Buckle B;

[0075] 3. Container; 301. Container neck; 302. Main chamber; 303. Thread B; 304. Mouth edge;

[0076] 4. First material; 5. Second material. Detailed Implementation

[0077] During the implementation of this utility model, various implementation schemes and modifications that can be made by those skilled in the art without departing from the scope and spirit of this utility model are obvious and easy to carry out. The following specific embodiments with reference to the accompanying drawings further illustrate this utility model, but do not imply any limitation on this utility model.

[0078] Furthermore, the technical solutions of this utility model, including preferred technical solutions, will be described in further detail through the accompanying drawings and by listing some optional embodiments. It should be noted that any technical feature or technical solution in this embodiment is one or more of a variety of optional technical features or solutions. For the sake of brevity, this document cannot exhaustively list all alternative technical features and solutions of this utility model, nor is it convenient to emphasize that each implementation of a technical feature is one of multiple optional implementations. Therefore, those skilled in the art should understand that any technical feature or technical solution in this embodiment does not limit the scope of protection of this utility model. The scope of protection of this utility model should include any alternative technical solutions that those skilled in the art can conceive of without creative effort.

[0079] Example 1. A material storage and release device and its packaging container.

[0080] refer to Figures 1-3As shown, the material storage and release device provided in this embodiment consists of a cover component 1, a release component 2, and a sealing component 11. The cover component 1 has a cover structure 101 and a cavity structure 102. The cover structure 101 and the cavity structure 102 are connected together to form an annular structure. The inner wall of the cover structure 101 is provided with a thread A 103. The tail end of the cavity structure 102 is open. The outer wall of the cavity structure 102 is provided with a buckle A. 107. A sealing plate 104 is provided at the first end of the cavity structure 102. The part where the sealing plate 104 is connected to the inner wall of the first end of the cavity structure 102 has a beveled structure to reduce its thickness. It is then connected to the inner wall of the first end of the cavity structure 102 to form a thinning connection structure 105 between the sealing plate 104 and the cavity structure 102. The thickness of the sealing plate 104 is 0.8 to 1.2 mm, and the thickness at the connection between the sealing plate 104 and the inner wall of the first end of the cavity structure 102 is 0.2 mm.

[0081] A sheet-like tensioning structure 106 is provided between the sealing sheet 104 of the cover member 1 and the inner wall of the cavity structure 102. A rib-like breakthrough structure 108 is provided on the outer wall of the sealing sheet 104 of the cover member 1, opposite to the tensioning structure 106. The cavity structure 102 extends from the tail end of the cover member 1, and a thread is provided on the outer wall of the extended cavity structure.

[0082] Furthermore, a sealing element 11 is used to seal the opening at the tail end of the cavity structure 102, as shown in the figure. The sealing element 11 is a threaded cap, which can be connected to the thread provided on the outer wall of the cavity structure, so that the threaded cap can be installed at the tail end of the cavity structure 102 and seal the opening at the tail end of the cavity structure 102 to ensure the airtightness of the material in the storage state.

[0083] The release component 2 is a cylindrical structure with open ends. The outer wall of the tail end of the release component 2 is provided with a pusher structure 201 with an annular plate structure. The inner wall of the head end of the release component 2 is provided with a rupture structure 202 and a buckle B203. The rupture structure 202 is cylindrical and protrudes from the inner wall of the head end of the release component 2. The protrusion direction of the rupture structure 202 is towards the tail end of the release component 2. In addition, as shown in the figure, a leakage hole is provided at the connection between the rupture structure 202 and the head end of the release component 2. This leakage hole helps to reduce the obstruction of material release during the release process.

[0084] The release member 2 can be installed and fitted on the outer wall of the cavity structure 102 of the cover member 1, and the puncture structure 202 of the release member 2 is directly opposite the thinning connection structure 105 of the sealing sheet 104.

[0085] In this embodiment, the cover component 1 or the sealing sheet 104 of the material storage and release device is made of low-density polyethylene (LDPE) material by injection molding. The low-density polyethylene (LDPE) material has the following performance parameters: tensile strength 7.1 to 8.9 MPa, elongation at break 50% to 220%. The performance parameters are determined by the method of national standard GB / T1040 or ASTM D638.

[0086] The function of the material storage and release device in this embodiment is as follows: Material is filled into the cavity structure 102 through the opening at the tail end of the cavity structure 102 of the cover member 1. The sealing member 11, i.e., the threaded cap, is tightened on the tail end of the cover member 1, so that the sealing member 11 seals the opening at the tail end of the cavity structure 102, thereby sealing and storing the material in the cavity structure 102. Further, 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 buckle A 107 and the buckle B 203 are fastened together. The rupture structure 202 of the release member 2 is directly opposite the thinning connection structure 105 of the sealing sheet 104. The rupture structure 202 is pressed against the breakthrough structure 108, thus forming the material storage and release device of this embodiment.

[0087] In use, place the material release device at the opening of the neck of container 3, so that the cavity structure 102 and the release member 2 extend into the opening of the container neck 301, and make the pusher structure 201 of the release member 2 contact the rim 304 of the container opening. Tighten the cap member 1 so that the thread A 103 of the cap member 1 connects with the thread B 303 of the container neck. Under the interaction of 303, the pusher structure 201 of the release component is pushed towards the tail end of the cavity structure 102 by the opening edge 304 of the container opening. The rupture structure 202 of the release component 2 presses against the breakthrough structure 108 and then ruptures the thinning connection structure 105 of the sealing sheet 104. The rupture process is smooth and easy to achieve, and pushes the sealing sheet 104 into the cavity structure 102. Due to the presence of the pulling structure 106, the sealing sheet 104 is still connected to the cavity structure 102 and will not detach from the cavity structure 102. The material in the cavity structure 102 is released into the container 3 and mixed with the material in the container 3 to achieve the function of mixing and blending. At this time, the material storage and release device is tightened at the opening of the container neck 301. The material storage and release device has a sealing function on the opening of the container neck 301, and the mixed material in the container 3 is in a sealed state.

[0088] When the mixed material is to be used, there is no need to remove the entire material storage and release device from the neck 301 of the container. Simply unscrew the seal 11 at the end of the cap component 1, i.e. the threaded cap, and the mixed material can be used.

[0089] The assembly method of the material storage and release device in this embodiment includes: filling the second material 5 into the cavity structure 102 of the cover member 1, screwing the sealing member 11 onto the thread C 109 at the tail end of the cover member 1, and sealing the opening at the tail end of the cavity structure 102, so that the second material 5 is sealed and stored in the cavity structure 102, and further installing the release member 2 and sleeve it on the outer wall of the cavity structure 102 of the cover member 1, so that the rupture structure 202 of the release member 2 is aligned with the thinning connection structure 105 of the sealing sheet 104, and the cylindrical rupture structure 202 rests on the breakthrough structure 108, thereby forming the material storage and release device of this embodiment.

[0090] Furthermore, the material storage and release device is placed at the opening of the neck of the container 3, so that the cavity structure 102 and the release member 2 extend into the opening of the container neck 301, and the pusher structure 201 of the release member 2 contacts the rim 304 of the container opening. The cap member 1 is screwed on so that the thread A 103 of the cap member 1 is connected to the thread B 303 of the container neck, so that the material storage and release device is installed on the container neck 301 to form a packaging container.

[0091] The container 3 includes a container neck 301 with an opening and a main body chamber 302, and the outer wall of the container neck 301 is provided with a thread B 303.

[0092] Example 2. Product sealing performance qualification rate test of cover components.

[0093] For the material storage and release device in the aforementioned embodiment 1, when the cover component 1 is produced using an injection mold, the injection gate is located at the center of the outer wall of the sealing sheet 104.

[0094] The experiment investigated the impact of different injection gate locations on the pass rate of the critical sealing performance of the cover component 1.

[0095] Test method: (1) The injection gate of the mold is set at the center of the outer wall of the sealing sheet 104, and the injection molded cover component product is designated as A. The injection gate of the mold is set on the outer wall of the cover structure 101 of the cover component 1, and the injection molded cover component product is designated as B. The size, shape, structure and dimensions, number of mold cavities, etc. of cover component A and cover component B are completely the same. The thickness of the connection between the sealing sheet 104 and the cavity structure 102 is 0.2mm ± 0.015mm.

[0096] (2) Both cover component A and cover component B are made of the same low-density polyethylene material, and the same injection temperature, injection pressure, injection time, holding time, etc. are used to produce 5000 cover components A and cover components B respectively. The two injection molded products have complete structure, no missing glue, and no flash.

[0097] (3) Randomly select 500 cover components A and 500 cover components B, and conduct sealing tests on the key sealing structure that connects the sealing sheet and the cavity structure through thinning to determine the product qualification rate.

[0098] (4) Test method: Use a leakage and sealing strength tester to test. Pressurize from the tail end opening of the cover component to 200 kPa, maintain the pressure underwater for 1 minute, and observe whether there is any leakage.

[0099] (5) Test results: 0 out of 500 cover components A, with a sealing pass rate of 100%; 214 out of 500 cover components B, with a sealing pass rate of 57.2%.

[0100] It can be seen that when the injection gate of the cover component A is located at the center of the outer wall of the sealing sheet 104, the sealing qualification rate of the product reaches 100%. Compared with the product with the injection gate located on the outer wall of the cover structure 101, the sealing qualification rate is significantly different.

[0101] Example 3. Tests on the torque required to puncture sealing sheets of different materials and the puncture pass rate.

[0102] For the material storage and release device in the aforementioned Example 1, the sealing sheet is encapsulated and injection molded onto the cavity structure of the cover component using different types of injection molding materials by overmolding. The torque required for the sealing sheet to be punctured and the puncture pass rate are tested.

[0103] Experimental method: (1) The injection gate of the mold is set at the center of the outer wall of the sealing sheet 104. The thickness of the connection between the sealing sheet 104 and the cavity structure 102 is 0.2mm ± 0.015mm. Using the same injection temperature, injection pressure, injection time, and holding time, two types of cover components C and D are prepared respectively. The sealing sheets of cover components C and D are made of two different types of injection molding materials by overmolding. No breakthrough structure is set on the sealing sheets.

[0104] Cover component C: The sealing sheet structure is prepared by overmolding injection molding, using low-density PE with a tensile strength of 7.9 MPa and an elongation at break of 182%.

[0105] Cover component D: The sealing sheet structure is prepared by overmolding injection molding, using low-density PE with a tensile strength of 10.0 MPa and an elongation at break of 400%.

[0106] (2) Test method: The same release component prepared in Example 1 was used to match the cap component C and cap component D respectively. The material storage and release device was screwed onto the same threaded bottle mouth respectively. The torque was tested with a torque meter with an accuracy greater than 0.1 Nm. The torque when the sealing sheet of cap component C and cap component D was punctured was observed. 50 groups were tested respectively, and the average torque was taken.

[0107] (3) Criteria for judging the pass rate: those with a bursting torque of less than 3.5 Nm and a bursting opening gap of more than 5 mm are considered qualified; those with a torque greater than 3.5 Nm and less than 6.0 Nm that cannot burst the sealing sheet, or those that can burst but have a bursting opening gap of less than 5 mm are considered unqualified.

[0108] (4) Experimental results:

[0109] Cover component C: Average torque 2.93 Nm, bursting pass rate 74%;

[0110] Cover component D: average torque 3.42 Nm, bursting pass rate 20%.

[0111] Therefore, it is evident that using low-density PE with a tensile strength of 7.9 MPa and an elongation at break of 182%, the cap component with a sealed sheet structure produced by overmolding and injection molding requires less torque to puncture the sealed sheet than cap components with sealed sheets made of other low-density PE, and the puncture success rate is significantly higher than that of cap components with sealed sheets made of other low-density PE. This demonstrates that the selection of a specific polymer material for the release component of the material release device of this invention significantly improves the feasibility and success rate of sealing sheet puncture.

[0112] Example 4. Tests on the torque required to puncture the sealing sheet of a cover member with a breakthrough structure, and the puncture pass rate.

[0113] For the material storage and release device in the aforementioned Example 1, the sealing sheet is encapsulated and injection molded onto the cavity structure of the cover component using low-density PE with a tensile strength of 7.9 MPa and an elongation at break of 182% by a rubber encapsulation injection molding method. The sealing sheet may or may not have a puncture structure. The torque required for the sealing sheet to be punctured and the puncture pass rate are tested.

[0114] Experimental method: (1) The injection gate of the mold is set at the center of the outer wall of the sealing sheet 104. The thickness of the connection between the sealing sheet 104 and the cavity structure 102 is 0.2mm ± 0.015mm. Low-density PE with tensile strength of 7.9MPa and elongation at break of 182% is used to encapsulate the sealing sheet on the cavity structure of the cover component. Two cover components C and F are prepared using the same injection temperature, injection pressure, injection time, and holding time.

[0115] Cover component C: The sealing sheet structure is prepared by overmolding injection molding, using low-density PE with a tensile strength of 7.9MPa and an elongation at break of 182%. No perforation structure is set on the sealing sheet.

[0116] Cover component F: The sealing sheet structure is prepared by overmolding injection molding, using low-density PE with a tensile strength of 7.9MPa and an elongation at break of 182%. A breakthrough structure is set on the sealing sheet, and the breakthrough structure is set in the position directly opposite to the tension structure.

[0117] (2) Test method: The same release component prepared in Example 1 was used to match the cap component C and cap component F respectively. The material storage and release device was screwed onto the same threaded bottle mouth respectively. The torque was tested with a torque meter with an accuracy greater than 0.1 Nm. The torque when the sealing sheet of cap component C and cap component D was punctured was observed. 50 groups were tested respectively, and the average torque was taken.

[0118] (3) Criteria for judging the pass rate: those with a bursting torque of less than 3.5 Nm and a bursting opening gap of more than 5 mm are considered qualified; those with a torque greater than 3.5 Nm and less than 6.0 Nm that cannot burst the sealing sheet, or those that can burst but have a bursting opening gap of less than 5 mm are considered unqualified.

[0119] (4) Experimental results:

[0120] Cover component C: Average torque 2.93 Nm, bursting pass rate 74%;

[0121] Cover component F: average torque 2.11 Nm, puncture pass rate 100%.

[0122] Therefore, it is evident that using low-density PE with a tensile strength of 7.9 MPa and an elongation at break of 182%, and employing an injection-molded sealing sheet structure, the cover component with a perforation structure on the sealing sheet requires significantly less torque to puncture the sealing sheet compared to a cover component without a perforation structure, and its puncture pass rate is also significantly higher. This demonstrates that the perforation structure on the sealing sheet of the material storage and release device of this invention significantly reduces the torque required to puncture the sealing sheet and significantly improves its puncture pass rate. The puncture process is smoother and easier to achieve, requiring only a small twisting force to easily puncture and open the sealing sheet. The puncture action is smoother, the twisting force (torque) is appropriate and gentle, providing a smooth and pleasant user experience, making it easy to use, especially for the elderly, children, and women with limited hand twisting strength.

[0123] Example 5. A packaging composition containing two independently sealed materials.

[0124] A packaging composition comprising a material release device, a container 3, a first material 4, and a second material 5, wherein the container 3 includes a container neck 301 with an opening and a main body chamber 302, and the outer wall of the container neck 301 is provided with a thread B 303; the material release device is the material release device described in Example 1, and the material release device is installed in the neck of the container 3.

[0125] The first material 4 is located in the main chamber 302 of the container, and the second material 5 is located in the cavity structure 102 of the cover member of the material storage and release device.

[0126] At least one of the first material 4 and the second material 5 is a liquid material, preferably both the first material 4 and the second material 5 are liquids, or the first material 4 is a liquid material and the second material 5 is a solid material, or the first material 4 is a solid material and the second material 5 is a liquid material.

Claims

1. A material storage and release device, comprising a cover component, a release component, and a sealing component, characterized in that: The cover component has a cover structure and a cavity structure. The cover structure and the cavity structure are connected together to form an annular structure. The inner wall of the cover structure is provided with threads. The tail end of the cavity structure is open and the head end is provided with a sealing plate. The part where the sealing plate is connected to the inner wall of the head end of the cavity structure is provided with a bevel structure to reduce its thickness, and then connected to the inner wall of the head end of the cavity structure to form a thinning connection structure. The sealing sheet of the cover component and the inner wall of the cavity structure are provided with a sheet-like tension structure that is interconnected. On the outer wall of the sealing sheet and at the position directly opposite to the tension structure, a rib-like breakthrough structure is provided. The cover component or the sealing sheet of the cover component is made of low-density polyethylene material by injection molding, and the low-density polyethylene material has the following performance parameters: tensile strength 7.1~8.9MPa, elongation at break 50%~220%; The release member has a cylindrical structure, with both the front and rear ends being open. The outer wall of the rear end of the release member is provided with a pusher structure in the form of a ring plate, and the inner wall of the front end of the release member is provided with a piercing structure in the form of a sharp or cylindrical structure. The piercing structure protrudes from the inner wall of the front end of the release member, and the protruding direction of the piercing structure is towards the rear end of the release member. The release member can be installed and fitted onto the outer wall of the cavity structure of the cover member, and the puncture structure of the release member is directly opposite the thinning connection structure of the sealing sheet. The sealing element can seal the opening at the tail end of the cavity structure, and the sealing element includes a sealing cap, a sealing membrane, or a sealing plug; The material storage and release device can be placed at the opening of the neck of a container with a threaded structure, so that the cavity structure and the release member extend into the opening of the container neck, and the pusher structure of the release member contacts the edge of the container opening. The threads provided on the inner wall of the cover structure are connected to the threads of the container neck. Through the twisting force of the threads, the rupture structure of the release member pushes the rupture structure to break through the rupture structure, and then breaks through the thinning connection structure of the sealing sheet, pushing the sealing sheet into the interior of the cavity structure.

2. The material storage and release device according to claim 1, characterized in that: The pulling structure is disposed between the inner wall of the sealing sheet and the inner wall of the cavity structure, or the pulling structure is disposed between the outer wall of the sealing sheet and the inner wall of the cavity structure.

3. The material storage and release device according to claim 1, characterized in that: The sealing sheet of the cover component has a stepped sheet structure.

4. The material storage and release device according to claim 1, characterized in that: The injection gate of the cover component is located on the inner wall or outer wall of the sealing sheet, or the injection gate of the sealing sheet structure is located on the inner wall or outer wall of the sealing sheet. The thickness of the sealing sheet is 0.75mm to 1.2mm, and the thickness at the connection between the sealing sheet and the inner wall of the cylindrical structure is 0.08mm to 0.35mm.

5. A cover component, referring to the material storage and release device of claim 1, characterized in that: The cover component has a cover structure and a cavity structure. The cover structure and the cavity structure are connected together to form an annular structure. The inner wall of the cover structure is provided with threads. The tail end of the cavity structure is open and the head end is provided with a sealing plate. The part where the sealing plate is connected to the inner wall of the head end of the cavity structure is provided with a bevel structure to reduce its thickness, and then connected to the inner wall of the head end of the cavity structure to form a thinning connection structure. The sealing sheet of the cover component and the inner wall of the cavity structure are provided with a sheet-like tension structure that is interconnected. On the outer wall of the sealing sheet and at the position directly opposite to the tension structure, a rib-like breakthrough structure is provided. The cover component or the sealing sheet of the cover component is made of low-density polyethylene material by injection molding, and the low-density polyethylene material has the following performance parameters: tensile strength 7.1 to 8.9 MPa, elongation at break 50% to 220%.

6. A cover component according to claim 5, characterized in that: The pulling structure is disposed between the inner wall of the sealing sheet and the inner wall of the cavity structure, or the pulling structure is disposed between the outer wall of the sealing sheet and the inner wall of the cavity structure.

7. A packaging container, characterized in that: The packaging container is formed by mounting the material storage and release device of claim 1 on a container neck with an opening, the container including a container neck with an opening and a main body chamber, and the outer wall of the container neck is provided with threads.

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