A combination can

Abstract

The application relates to a combined tank, which comprises a tank body, a main containing bin arranged in the tank body, an openable injection port arranged on the main containing bin, a bottom cover connected to one end of the tank body away from the injection port, and a secondary containing bin arranged at the one end of the tank body away from the injection port and sealed with the bottom cover to form a containing cavity. The combined tank structure is characterized in that the independent secondary containing bin is arranged at the bottom of the tank body, and the bottom cover is sealed in a detachable or identifiable openable mode, so that the physical separation of the powder and the main containing bin is realized, and there is no air or water vapor channel between the two before the bottom cover is opened; the bottom cover needs to be manually detached or opened before use, so that the powder can be contacted or released, the powder environment is stable and dry, and the product shelf life is significantly prolonged; and the structural design is flexible, and multiple uses, multiple bin combinations and even storage of different types of powder ingredients can be realized.

Description

Technical Field

[0001] This application relates to the field of food packaging, and more particularly to a combination can. Background Technology

[0002] In recent years, with the popularity of health drinks and portable foods, a large number of products such as cold-brewed tea and functional powder beverages, characterized by instant preparation and separate dissolution in separate compartments, have appeared on the market. These products usually adopt a two-stage structure. The powder is generally pre-filled in the cap or an independent compartment at the top. By manually rotating or pressing, the consumer activates the internal needles or membrane-breaking structure to release the powder into the water below to form a drinking liquid.

[0003] While these products can be repackaged, they generally suffer from the following drawbacks: Poor sealing of the puncture-film release structure. Since puncture-film release relies primarily on a single layer of aluminum foil or plastic film, sealing the main compartment is achieved only through simple physical pressing or film adhesion, making it difficult to effectively block moisture and water vapor from the main compartment. Prone to moisture absorption and clumping after long-term storage. The main compartment often contains water or other liquids; when temperatures change or after prolonged storage, moisture formed inside the can easily seep into the powder compartment along the gaps at the edge of the sealing film, causing the powder to become damp and clump, resulting in inadequate dissolution or affecting the taste. Limited stability and shelf life. Due to factors such as incomplete sealing and environmental changes, the puncture-film structure is prone to failure during transportation and storage, which is detrimental to improving the product's shelf life and storage stability. Utility Model Content

[0004] The purpose of this application is to overcome the problems mentioned above, such as poor sealing of the puncture-film release structure, easy moisture absorption and clumping of the powder after long-term storage, and limited stability and shelf life.

[0005] According to one aspect of this application, a combination tank is provided, comprising:

[0006] The tank body has a main receiving chamber inside, and the main receiving chamber has an openable injection port;

[0007] A bottom cover is attached to the end of the tank body opposite to the injection port;

[0008] The end of the tank opposite to the injection port is provided with a secondary receiving chamber, which is sealed with the bottom cover to form a receiving cavity.

[0009] Preferably, the secondary containment chamber is provided with a partition to divide the containment cavity into independent powder storage areas.

[0010] Preferably, the can is made of plastic, metal or a composite material thereof, and the surface of the can may be provided with anti-slip texture or label attachment area.

[0011] Preferably, the injection port is provided with a sealing cap, which is connected to the tank body by a threaded connection, a snap-fit ​​connection, or a flip-top structure.

[0012] Preferably, the bottom cover is detachably connected to the tank body.

[0013] Preferably, the junction between the bottom cover and the tank body is provided with a double sealing structure, the double sealing structure comprising:

[0014] The first sealing layer is made of silicone and covers the outer edge of the secondary containment chamber;

[0015] The second sealing layer is heat-pressed and sealed at the joint between the tank body and the bottom cover.

[0016] Preferably, an anti-opening identification structure is provided between the bottom cover and the tank body, including: a fracture ring disposed on the outer edge of the bottom cover, the fracture ring breaking during the initial opening process and being irreparable, serving as an opening warning indicator; or,

[0017] A color-changing recognition layer, which undergoes an irreversible color change upon exposure to air or after being torn, is used to indicate the open state; or...

[0018] Microporous sealing tape leaves a visible marking layer after removal.

[0019] Preferably, the tank body has a columnar, elliptical columnar, or polygonal columnar structure.

[0020] Preferably, the opening edge of the secondary compartment is provided with an annular flange structure, and the corresponding position on the inner side of the bottom cover is provided with an annular groove structure. The annular flange and the annular groove cooperate to form a limiting and fastening structure.

[0021] Preferably, the can body is provided with a detachable portable hanging ring or buckle structure on the outside.

[0022] The present application has the following beneficial effects: The combined tank structure proposed in this application, by setting an independent secondary containment compartment at the bottom of the tank and sealing it with a detachable or identifiable openable bottom cover structure, achieves the following structural effects: the powder and the main containment compartment are physically completely isolated, and there is no air or moisture channel between the two before it is opened; the bottom cover must be manually removed or opened before use to access or release the powder, ensuring a stable and dry environment for the powder and significantly extending the product's shelf life; the structural design is flexible and can realize multiple uses, multi-compartment combinations, and even storage of different types of powder ingredients. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the appearance of the combined tank according to one embodiment of this application;

[0025] Figure 2 This is an exploded view of the combined tank according to one embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the external appearance of the tank according to one embodiment of this application;

[0027] Figure 4 for Figure 3 Cross-sectional view at point AA;

[0028] Figure 5 This is a schematic diagram of the appearance of the bottom cover according to one embodiment of this application.

[0029] Explanation of reference numerals: 100, combined tank; 10, sealing cap; 20, tank body; 21, secondary containment chamber; 22, inlet; 23, main containment chamber; 24, annular flange; 30, bottom cover; 31, annular groove. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0032] Please refer to Figure 1 - Figure 5One embodiment of this application provides a combined tank 100, including: a tank body 20, a main receiving chamber 23 inside the tank body 20, the main receiving chamber 23 having an openable injection port 22; a bottom cover 30, connected to one end of the tank body 20 away from the injection port 22; and a secondary receiving chamber 21 provided at one end of the tank body 20 away from the injection port 22, which together with the bottom cover 30 forms a receiving cavity.

[0033] In this embodiment, it should be noted that the secondary containment chamber 21 and the main containment chamber 23 are completely isolated. Before the bottom cover 30 is opened or the containment chamber structure is removed, moisture and water vapor in the main containment chamber 23 cannot enter the interior of the secondary containment chamber 21, thereby effectively avoiding the problem of powder becoming damp and clumping.

[0034] The technical solution implemented in this embodiment can achieve long-term physical isolation between powder and liquid, extend the shelf life of powder, and avoid clumping and failure caused by moisture. It is particularly suitable for functional beverage products that require cold brewing or instant dissolution.

[0035] Furthermore, by pre-sealing the powder in an independent cavity between the bottom cover 30 and the secondary compartment 21, the two materials can be stored independently while maintaining the compact structure of the overall can 20. Before drinking, the user only needs to unscrew or open the bottom cover 30 to release the powder into the main compartment 23, where it will mix thoroughly with the liquid, making it convenient to use.

[0036] Compared to the commonly used cap-piercing membrane release structure in existing technologies, the fully isolated structure adopted in this embodiment has the following significant advantages: moisture in the main containment chamber 23 cannot penetrate into the powder area through the membrane material or micropores, fundamentally solving the problem of powder moisture absorption; no additional membrane piercing mechanism is required, making the structure simpler, easier to manufacture, and reducing costs; the powder is released only under manual operation, avoiding accidental release or premature mixing of powder during transportation, ensuring product quality; modular replacement design is possible, allowing users to replace different powder containment units according to taste or functional requirements, improving the adaptability and reusability of the combination can 100.

[0037] In an optional embodiment, the secondary storage compartment 21 is provided with a partition to divide the storage cavity into independent powder storage areas. In this embodiment, it should be noted that the partition in the secondary storage compartment 21 is used to divide the entire storage cavity into multiple independent powder storage areas, which can be used to store different types or batches of powder materials.

[0038] Each independent storage area can be opened separately according to usage needs, facilitating partial release or quantitative control, enhancing usage flexibility and product functionality. For example, vitamin powder, energy supplements, etc., can be stored separately in sequence, allowing users to release them daily or as needed, and can also be used for step-by-step preparation of compound beverages.

[0039] In addition, the partition structure can reduce the risk of cross-contamination between powders, further improving the hygiene, safety and storage stability of the product, making it particularly suitable for scenarios such as nutritional drinks and pharmaceutical powders that require precise mixing or multiple preparations.

[0040] In one specific embodiment, the can body 20 is made of plastic, metal, or a composite material thereof. The surface of the can body 20 may have an anti-slip texture or a label attachment area. The injection port 22 is provided with a sealing cap 10, which is connected to the can body 20 by a threaded connection, a snap-fit ​​connection, or a flip-top structure. In this embodiment, it should be noted that the variety of materials available for the can body 20 allows the combined can 100 to be suitable for different usage scenarios and packaging needs. Plastic materials are convenient for single use and have a lower cost, while metal materials have higher strength and barrier properties, and composite materials combine lightweight and structural strength, making them suitable for food or health product packaging with high requirements for shelf life and strength.

[0041] The anti-slip texture enhances the user's grip and operation when opening, making it especially suitable for wet hands or outdoor use. The reserved label area allows brands to easily affix product identification, instructions, or custom patterns, enhancing product recognition and marketing appeal.

[0042] The various connection methods between the sealing cap 10 and the can body 20 (such as threads, snaps, and flip caps) provide the product with greater adaptability, which not only facilitates filling or reuse, but also effectively prevents leakage of contents and meets the opening habits and sealing needs of different users.

[0043] In one specific embodiment, the bottom cover 30 is detachably connected to the can body 20. A double-sealing structure is provided at the joint between the bottom cover 30 and the can body 20. The double-sealing structure includes: a first sealing layer made of silicone material, covering the outer edge of the secondary containment chamber 21; and a second sealing layer, heat-pressed and sealed at the seam between the can body 20 and the bottom cover 30. In this embodiment, it should be noted that the bottom cover 30 and the can body 20 are detachably connected, allowing the user to easily open the bottom cover 30 to release the powder contents of the secondary containment chamber 21 when needed. This also facilitates the filling and packaging operations before the product leaves the factory, improving overall processing efficiency and user convenience.

[0044] The dual-sealing structure significantly enhances the airtightness of the containment chamber. The first sealing layer, made of soft and highly resilient silicone, covers the outer edge of the secondary containment chamber 21, ensuring a tight fit during assembly and preventing air and moisture from entering. The second sealing layer is sealed at the joint between the can body 20 and the bottom cover 30 using a heat-pressing process, forming an irreversible, one-time sealed structure that further strengthens the initial sealing effect. This dual-layer structure effectively prevents the powder from becoming damp and deteriorating during normal transportation and storage. Furthermore, it allows for reuse after opening by replacing the seals, thus meeting the dual requirements of disposable packaging and sustainable use.

[0045] In one optional embodiment, an anti-opening identification structure is provided between the bottom cover 30 and the can body 20, including: a fracturing ring disposed on the outer edge of the bottom cover 30, which breaks during the initial opening process and cannot be restored, serving as an opening indication; or, a color-changing identification layer, which undergoes an irreversible color change after being exposed to air or torn under force, used to indicate the open state; or, a microporous sealing sticker, leaving a visible identification layer after being removed. In this embodiment, it should be noted that the anti-opening identification structure aims to provide an intuitive and irreversible means of indicating the open state, effectively improving the product's anti-counterfeiting performance and user security. The fracturing ring, through its structural design, physically breaks when the user first rotates or pulls the bottom cover 30, forming a permanent and irreversible mark, clearly indicating that the packaging has been opened.

[0046] The color-changing recognition layer is based on a response mechanism to air, humidity, or mechanical tearing. It can change color after being opened, and this change is irreversible. It can serve as a long-term visual identifier of the open state, making it easy to identify whether the product is intact in the retail or transportation process.

[0047] The microporous sealing sticker design is more suitable for occasions that require partial sealing. After being removed, it leaves a prominent marking layer on the surface of the bottom cover 30 or the can body 20. It can also be combined with QR codes, brand logos, etc. to further enhance traceability and anti-counterfeiting capabilities.

[0048] The above structure enables effective recording of the user's initial opening operation, preventing the contents from being opened or replaced prematurely. It is widely applicable to scenarios with high requirements for the safety of contents, such as cold brew tea, medicine, and functional beverages.

[0049] In one optional embodiment, the can body 20 is a cylindrical, elliptical cylindrical, or polygonal prism structure. It should be noted that the cylindrical, elliptical cylindrical, or polygonal prism structure design can be flexibly adjusted according to actual usage needs and aesthetics, meeting various requirements such as product display, hand grip, and packaging stacking in different scenarios.

[0050] Among them, the columnar structure is easy to mold and automatically fill, with lower manufacturing costs, and is suitable for standardized production; the elliptical columnar structure has better grip and fit, and is suitable for portable beverages or sports scenarios; the polygonal columnar structure is more visually distinctive and personalized, while also providing a certain degree of anti-rolling capability, making it more stable when placed on desktops or shelves.

[0051] This flexibility in form further expands the applicability of the Combination Can 100 in the food, beverage, and pharmaceutical industries, while also providing a wider range of appearance options for brand packaging design.

[0052] In an optional embodiment, the opening edge of the secondary compartment 21 is provided with an annular flange 24, and the corresponding position on the inner side of the bottom cover 30 is provided with an annular groove 31. The annular flange 24 and the annular groove 31 cooperate to form a limiting and fastening structure. In this embodiment, it should be noted that the limiting and fastening structure formed by the cooperation of the annular flange 24 and the annular groove 31 can provide a stable mechanical locking effect when the bottom cover 30 is connected to the tank body 20, effectively improving the vibration resistance and pull-out resistance of the connection part, and preventing the bottom cover 30 from loosening due to transportation or misoperation.

[0053] Furthermore, the snap-fit ​​structure also has a certain positioning guidance function, enabling users to quickly align and complete the installation when screwing or pressing the bottom cover 30, thus improving ease of use. In practical applications, the structural dimensions and tolerances of the annular flange 24 and the groove can be flexibly adjusted according to the material elasticity and frequency of use to achieve a connection that is both strong and easy to disassemble, thereby improving the overall sealing performance and reusability of the combined tank 100.

[0054] In one optional embodiment, the canister 20 is provided with a detachable portable hanging loop or buckle structure on the outside. In this embodiment, it should be noted that the detachable portable hanging loop or buckle structure on the outside of the canister 20 is designed to provide a convenient way to carry and hang the canister, meeting the user's needs in outdoor, travel, or sports scenarios. This design allows users to easily hang the combination canister 100 on a backpack, in a car, or other easily accessible location, improving the product's portability and practicality.

[0055] The detachable hanging ring or snap-on structure features an easy-to-operate design, allowing users to quickly disassemble or install it as needed, providing flexibility for different usage scenarios. Furthermore, the material of the hanging ring or snap-on structure can be selected from plastic, metal, or other suitable materials based on the overall design of the tank 20 to ensure sufficient strength and durability while ensuring no additional weight is added.

[0056] This design not only enhances the product's functionality, but also increases its recognizability and market appeal by combining the shape of the hanging ring or buckle with the brand logo and other identifiers.

[0057] In an alternative embodiment, the tank 20 may be provided with compartments for storing additional accessories. For example:

[0058] Straws: Features a dedicated slot or folding design, allowing straws to be rolled up and stored outside the container 20 or inside the bottom lid 30. Straws can be designed with adjustable length or built-in filtering to suit different user needs.

[0059] Spoon: A detachable small spoon is provided. The length of the spoon matches the 20mm depth of the can. The spoon head is designed with non-stick material for easy and accurate dispensing of powder or liquid.

[0060] Filter screen: A removable microporous filter screen is designed and located at the bottom of the can 20 or near the inlet 22 to prevent the formation of particles or impurities after the powder or liquid dissolves. It can be cleaned and replaced during use.

[0061] The canister 20 features multiple independent compartments for storing accessories (such as straws, spoons, and filters). These compartments can be divided using dividers, inner wall grooves, or removable partitions to ensure that accessories do not interfere with each other and are easily accessible. The compartment design can be adjusted according to the size of the accessories to ensure that each accessory has a suitable storage space. These accessories can be secured within the compartments using slots, grooves, hooks, or zippered pouches to prevent them from loosening or being lost during transportation or storage. Accessories are typically stored on the sides, bottom, or top of the canister 20 for easy access by the user.

[0062] The inner walls of the compartments can be made of soft materials, such as silicone, plastic, or fabric, to prevent damage to the accessories during storage. To ensure that the accessories are not contaminated by moisture or dust, sealing strips or lids can be designed at the openings of the compartments to provide good sealing and protection.

[0063] The compartment design must not only ensure the safe storage of accessories but also consider user convenience. Users can easily retrieve stored accessories by pulling open the sliding cover, opening the rotating cover, or removing the bottom cover 30. The accessory retrieval method can be designed for easy one-handed operation, avoiding inconvenience during use.

[0064] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A combination tank, characterized in that, include: The tank body has a main receiving chamber inside, and the main receiving chamber has an openable injection port; A bottom cover is attached to the end of the tank body opposite to the injection port; The end of the tank opposite to the injection port is provided with a secondary receiving chamber, which is sealed with the bottom cover to form a receiving cavity.

2. The combined tank according to claim 1, characterized in that, The secondary containment chamber is equipped with a partition, which divides the containment cavity into independent powder storage areas.

3. The combined tank according to claim 1, characterized in that, The can is made of plastic, metal or a composite material thereof, and the surface of the can may be provided with anti-slip texture or label attachment area.

4. The combined tank according to claim 1, characterized in that, The injection port is equipped with a sealing cap, which is connected to the tank body by a threaded connection, a snap-fit ​​connection, or a flip-top structure.

5. The combined tank according to claim 1, characterized in that, The bottom cover is detachably connected to the tank body.

6. The combined tank according to claim 5, characterized in that, The junction between the bottom cover and the tank body is provided with a double sealing structure, the double sealing structure comprising: The first sealing layer is made of silicone and covers the outer edge of the secondary containment chamber; The second sealing layer is heat-pressed and sealed at the joint between the tank body and the bottom cover.

7. The combined tank according to claim 1, characterized in that, An anti-opening identification structure is provided between the bottom cover and the tank body, including: a fracture ring disposed on the outer edge of the bottom cover, the fracture ring breaking during the initial opening process and being irreparable, serving as an opening warning indicator; or... A color-changing recognition layer, which undergoes an irreversible color change upon exposure to air or after being torn, is used to indicate the open state; or... Microporous sealing tape leaves a visible marking layer after removal.

8. The combined tank according to claim 1, characterized in that, The tank body has a columnar, elliptical columnar, or polygonal columnar structure.

9. The combined tank according to claim 1, characterized in that, The opening edge of the secondary compartment is provided with an annular flange structure, and the corresponding position on the inner side of the bottom cover is provided with an annular groove structure. The annular flange and the annular groove cooperate to form a limiting and fastening structure.

10. The combined tank according to claim 1, characterized in that, The tank body is equipped with a detachable portable hanging ring or buckle structure on the outside.

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