Convenient food combination type packaging barrel
By using a nested structure of outer and inner buckets and a thermoforming process, the problem of instant noodle packaging containers being unable to isolate multiple flavors has been solved, achieving a multi-flavor experience, low cost, and lightweight design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAIXIANG FOOD CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-26
AI Technical Summary
Existing instant noodle packaging containers cannot effectively isolate various semi-solid and liquid seasonings, and injection-molded containers use a large amount of material, increasing cost and weight.
It adopts a nested structure of outer and inner buckets. The inner bucket is molded in one piece using a vacuum forming process, and the internal longitudinal partition is divided into multiple independent brewing chambers. The outer bucket is made of heat-insulating paper bucket. Combining the advantages of vacuum forming and paper bucket, it reduces costs and weight.
It enables a variety of flavors for fast food, reduces packaging costs and weight, and maintains structural stability during water injection, handling, and transportation.
Smart Images

Figure CN224409914U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of food packaging technology, and in particular relates to a combination packaging barrel for convenience food. Background Technology
[0002] Instant noodles are noodle products that have been dehydrated through processes such as steaming, frying, or hot air drying. They are usually served as a quick food, requiring only the addition of hot water or a short boil for rapid reheating. They come with individually packaged soup powder, sauces, or vegetable packets to provide flavor. Their core value lies in their ease of use and time-saving nature, offering significant convenience and making them a popular fast food choice for modern people.
[0003] Traditional instant noodles typically offer only one flavor, and consumers expect to experience multiple flavors with a single brewing / cooking session. While related technologies have disclosed packaging boxes capable of holding various flavors of instant noodles, overcoming the limitation of traditional paper noodle containers offering only one flavor, current integrated containers with dividers are limited to folded paper-based and injection-molded plastic types. A mature, compartmentalized blister-formed instant noodle container has yet to emerge. Folded paper-based structures only support dry powder products and cannot meet the airtight requirements of semi-solid or liquid contents. While injection-molded containers can accommodate semi-solid and liquid contents, their molding process demands a large amount of raw materials. For example, for the same size instant noodle packaging box, the raw material weight for injection molding is more than twice that for blister forming, increasing both packaging costs and weight. Utility Model Content
[0004] To overcome the problems existing in the related technologies, this application provides a convenient food combination packaging bucket.
[0005] This utility model provides a convenient food combination packaging bucket, including an outer bucket for heat insulation, an inner bucket nested inside the outer bucket, the inner wall of the outer bucket being fitted to the outer wall of the inner bucket to provide support for the inner bucket, the inner bucket being integrally molded using a vacuum forming process, and the inner bucket having a longitudinal partition formed inside to divide the internal accommodating space of the inner bucket into at least two independent brewing chambers, the openings of the plurality of brewing chambers being connected to the open opening at the top of the inner bucket.
[0006] In some embodiments, the upper end of the partition is lower than the upper end of the inner tub.
[0007] In some embodiments, the upper end of the side wall of the inner tub is provided with an outward flange, which overlaps the upper end of the side wall of the outer tub.
[0008] In some embodiments, the upper end of the side wall of the outer barrel is provided with an outward rolled edge, and the flange overlaps the rolled edge.
[0009] In some embodiments, the inner corners of the inner tub are provided with rounded transitions.
[0010] In some embodiments, the sidewall of the inner tub is inclined outward in the direction close to the opening, and the inclination angle of the sidewall of the inner tub is ≤6°.
[0011] In some embodiments, the longitudinal projection of the partition is S-shaped.
[0012] In some embodiments, the partition divides the internal accommodating space of the inner bucket into two independent brewing chambers. The partition is configured as two partition sheets connected as one piece at the upper end, and the distance between the two partition sheets gradually increases near the outer bucket.
[0013] In some embodiments, the inner tub has a wall thickness ≥ 0.48 mm; or the inner tub has a depth ≥ 87 mm; or the partition plate is inclined toward another partition plate in a direction close to the opening, and the inclination angle of the partition plate is ≤ 2.8°.
[0014] This utility model provides a convenient food modular packaging bucket. The outer bucket is made of heat-insulating and scalding-proof paper or other materials with similar properties, while the inner bucket is integrally molded using a vacuum forming process. Compared to a separate inner bucket with compartments, the integral manufacturing not only provides better structural rigidity but also reduces manufacturing steps and costs. Compared to injection molding, it significantly reduces costs and weight. This new modular packaging bucket uses lightweight raw materials with low cost, filling the market gap for compartmentalized vacuum-formed instant noodle containers. Furthermore, the inner bucket has a longitudinal partition to divide the internal space into at least two independent brewing chambers. These chambers can hold different flavors of instant noodles or other instant food products (such as instant rice noodles), allowing for a variety of flavors with a single brewing / cooking session. Furthermore, because the inner wall of the outer bucket is fitted to the outer wall of the inner bucket to provide support for the inner bucket, the overall strength and rigidity of the nested inner and outer buckets are improved. This ensures that the convenient food combination packaging bucket in this embodiment, after holding a sufficient amount of noodles and soup, will not deform during water filling, handling, and transportation. Therefore, the convenient food combination packaging bucket provided by this embodiment has the advantages of being able to brew multiple flavors of instant food, being lightweight, having low cost, and not easily deformed during water filling, handling, and transportation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a convenient food combination packaging bucket provided in a specific embodiment of the present utility model.
[0017] Figure 2 This is a three-dimensional structural diagram of the inner barrel provided in a specific embodiment of the present utility model.
[0018] Figure 3 This is a top view of the inner tub provided in a specific embodiment of the present invention.
[0019] Figure 4 This is a three-dimensional structural diagram of the outer barrel provided in a specific embodiment of the present utility model.
[0020] The following labels are shown in the attached diagram:
[0021] 1. Outer bucket; 11. Rolled edge; 2. Inner bucket; 21. Divider; 211. Divider piece; 212. Flat piece; 22. Flanged edge; 23. Brewing chamber. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please refer to Figures 1 to 4 , Figure 1 This is a three-dimensional structural diagram of a convenient food combination packaging bucket provided in a specific embodiment of the present utility model. Figure 2 This is a three-dimensional structural diagram of the inner barrel 2 provided in a specific embodiment of the present invention; Figure 3 This is a top view of the inner barrel 2 provided in a specific embodiment of the present invention. Figure 4 This is a three-dimensional structural diagram of the outer barrel 1 provided in a specific embodiment of the present invention.
[0024] This utility model provides a convenient food combination packaging bucket, including an outer bucket 1 and an inner bucket 2 nested inside the outer bucket 1. The inner wall of the outer bucket 1 is fitted to the outer wall of the inner bucket 2 to provide support for the inner bucket. Specifically, the main body of the side wall and the main body of the bottom wall of the inner bucket 2 can be fitted to the side wall and bottom wall of the outer bucket 1, respectively. The inner bucket 2 is integrally molded using a vacuum forming process. The inner bucket 2 has a longitudinal partition 21 formed inside to divide the internal accommodating space of the inner bucket 2 into at least two independent brewing chambers 23. The openings of multiple brewing chambers 23 are all connected to the opening at the top of the inner bucket 2 (the opening at the topmost position of the inner bucket), that is, the openings of multiple brewing chambers 23 directly correspond to the opening position of the inner bucket 2, and water can be poured directly into each brewing chamber 23 at the opening position at the top of the inner bucket 2 to brew instant noodles or other convenient foods of different flavors.
[0025] This utility model provides a convenient food modular packaging bucket. The outer bucket 1 is made of heat-insulating and anti-scalding paper or other materials with similar properties. The inner bucket 2 is integrally molded using a vacuum forming process. Compared with a separate inner bucket with compartments, the integral manufacturing not only has better structural rigidity but also fewer manufacturing steps, thus reducing production costs. Compared with injection molding, vacuum forming can use less raw material (lighter weight) to manufacture products with specific shapes (especially large-area thin-walled parts), significantly reducing costs and weight. This new modular packaging bucket uses lightweight raw materials and has low cost, filling the market gap for compartmentalized vacuum-formed instant noodle containers. In addition, the inner bucket 2 has a longitudinal partition 21 to divide the internal space of the inner bucket 2 into at least two independent brewing chambers 23. The at least two independent brewing chambers 23 separated by the partition 21 can hold different flavors of instant noodles or other instant food (such as instant rice noodles), allowing for multiple flavor experiences through a single brewing / cooking.
[0026] In addition, since the inner wall of the outer bucket 1 is fitted to the outer wall of the inner bucket 2 to provide support for the inner bucket 2, the overall strength and rigidity of the inner bucket 2 after nesting with the outer bucket 1 are better, so that the convenient food combination packaging bucket in this embodiment can hold a sufficient amount of noodles and soup without deforming during water filling, handling and transportation.
[0027] Therefore, the convenient food combination packaging bucket provided by this utility model has the advantages of being able to brew multiple flavors of instant food, being lightweight, having low cost, and not easily deformed during water filling, handling, and transportation.
[0028] It is understood that the convenient food combination packaging bucket provided in this embodiment of the utility model may also include a bucket lid, which is used to cover the upper part of the convenient food combination packaging bucket. Of course, it is also possible not to provide a separate bucket lid, but to use a plastic outer packaging paper directly as a bucket lid, and then connect it to the convenient food combination packaging bucket through a tearable adhesive structure.
[0029] like Figure 2 As shown, in some embodiments, the upper end of the partition 21 is lower than the upper end of the inner barrel 2, so that a certain height of the side wall of the upper part of the inner barrel 2 is not affected by the partition 21, and can be completely fitted with the side wall of the outer barrel 1 in the circumferential direction, further increasing the overall strength and rigidity of the convenience food combination packaging barrel in this embodiment. In addition, the fact that the upper end of the partition 21 is set lower than the upper end of the inner barrel 2 also ensures that the brewing water level in the brewing chamber 23 is not level with the upper end of the inner barrel 2, preventing the brewing water level in the brewing chamber 23 from being level with the upper end of the inner barrel 2, and avoiding the flow and mixing of different flavored brewing water in multiple brewing chambers 23 through the gap between the lid and the partition 21 after the lid is closed.
[0030] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the upper side wall of the inner bucket 2 is provided with an outwardly turned flange 22, which overlaps the upper side wall of the outer bucket 1, further enhancing the supporting effect of the outer bucket 1 on the inner bucket 2, thereby further improving the strength and rigidity of the inner bucket 2 and the outer bucket 1 after nesting. Therefore, the overall strength and rigidity of the convenient food combination packaging bucket in this embodiment are better, making it less prone to deformation during water filling, handling, and transportation when holding a sufficient amount of noodles and soup.
[0031] Based on the above embodiment, the upper side wall of the outer barrel 1 is provided with an outward rolled edge 11, and the flange 22 of the inner barrel 2 overlaps on the rolled edge 11. The flange 22 of the inner barrel 2 cooperates with the rolled edge 11 of the outer barrel 1, which can make the overall strength and rigidity of the upper edge of the convenience food combination packaging barrel in this embodiment better.
[0032] like Figure 2 and Figure 3 As shown, in some embodiments, the corners inside the inner barrel 2 are provided with appropriate rounded transitions, making it relatively easy to demold when the inner barrel 2 is made into a deep cavity container with a height equivalent to that of the outer barrel 1.
[0033] like Figure 2 and Figure 3 As shown, in some embodiments, the sidewall of the inner bucket 2 slopes outwards towards the opening, and the slope angle of the inner bucket 2's sidewall is ≤6°, such as 5.1° or 5.5°. Because the slope angle of the inner bucket 2's sidewall is ≤6°, the sidewall of the inner bucket 2 is nearly vertical, reducing the pressure of the soup on the sidewall of the inner bucket 2. This allows the inner bucket 2 to remain stably upright when filled with water, and it is less prone to deformation during water filling, handling, and transportation. Of course, the slope angle of the inner bucket 2's sidewall can also be greater than 6°, such as 7° or 9°. When the slope angle of the inner bucket 2's sidewall is greater than 6°, it facilitates demolding of the inner bucket 2 during molding.
[0034] like Figure 3 As shown, in some embodiments, the longitudinal projection of the partition 21 is S-shaped. The S-shaped partition 21 allows for the placement of larger circular dough pieces within the two partitioned spaces, resulting in better space utilization. Furthermore, the S-shaped partition 21 exhibits a more uniform stress distribution and, at the same thickness, has higher compressive strength than a straight partition.
[0035] like Figure 2 As shown, in a specific embodiment, the partition 21 divides the internal space of the inner barrel 2 into brewing chambers 23. Two independent brewing chambers 23 are used to hold different semi-solid or liquid seasonings (such as oil packets, sauce packets, vinegar packets, etc.), solving the problem of cross-contamination of contents. The partition 21 is configured as two layers of partition sheets 211 connected as one piece at the upper end, with the distance between the two layers of partition sheets 211 gradually increasing near the outer barrel 1. This not only allows for a smooth transition between the partition sheets 211 and the side wall of the inner barrel 2, avoiding sharp edges and making the inner barrel 2 structure more robust, but also shortens the overall distance of the small gap between the two layers of partition sheets 21, facilitating demolding. It is understood that the partition sheets 211 also have corresponding draft angles.
[0036] like Figure 2 and Figure 3 As shown, preferably, the two partition pieces 211 are connected as one piece at the upper end by a flat piece 212, so that the upper ends of the two partition pieces 211 have a certain rigidity, which reduces the deformation of the partition 21 from the upper end to a certain extent.
[0037] In some embodiments, specifically, the outer bucket 1 is made of paper, which is lightweight and provides heat insulation and anti-scalding properties. The inner bucket 2 is made of polypropylene (PP), which has a relative density of only 0.89-0.91 g / cm³, making it one of the lightest plastics and suitable for producing thin-walled blister packaging, thus reducing the overall weight of the packaging. PP can withstand continuous use temperatures up to 110-120℃, enabling it to withstand the high-temperature sterilization or hot-filling scenarios commonly encountered in food packaging. It also absorbs almost no water and does not react with most chemicals, making it suitable for contact with food, condiments, etc. This embodiment of the convenient food combination packaging bucket cleverly combines the lightweight advantages of blister packaging with the heat insulation, anti-scalding, cost-effectiveness, and environmental benefits of paper buckets through an innovative paper-plastic composite nested structure.
[0038] Based on the above embodiments, the wall thickness of the inner barrel 2 is ≥0.48mm. When PP material is selected as the material of the inner barrel 2, a certain thickness is set according to the material properties to ensure the strength and rigidity of the bowl after vacuum forming, making the assembled modular packaging barrel less prone to deformation and breakage during water filling, handling, and transportation.
[0039] Based on the above embodiment, the depth of the inner bucket 2 is ≥87mm to ensure that it can hold a sufficient amount of noodles and soup, provide sufficient structural strength, and prevent overflow when adding water for brewing.
[0040] Based on the above embodiment, the partition piece 211 is inclined towards another partition piece 211 in the direction close to the opening, and the inclination angle of the partition piece 211 is ≤2.8°, such as 2.4° or 2.6°. Of course, the inclination angle of the partition piece 211 can also be greater than 2.8°, such as 3° or 5°. When the inclination angle of the partition piece 211 is greater than 2.8°, it is convenient to demold the inner barrel 2 during molding.
[0041] The tilt angle of the partition piece is ≤2.8°, meaning the tilt angle of the two sides of the partition 21 facing the brewing chamber 23 is ≤2.8°. This setting makes the partition 21 nearly vertical, minimizing the thickness variation from top to bottom, thus minimizing the space occupied inside the inner tub 2 and maximizing the space of the brewing chamber 23. However, the larger the tilt angle of the partition piece 211, the easier it is for the inner tub 2 to be molded and demolded. Therefore, controlling the tilt angle of the partition piece 211 to a certain value balances the manufacturing difficulty of the inner tub 2 and the effective storage space inside the inner tub 2.
[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0043] The mechanism provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, this utility model is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A combination package for a convenience food product, comprising: The device includes an outer tub (1) for heat insulation, and an inner tub (2) is nested inside the outer tub (1). The inner wall of the outer tub (1) is fitted to the outer wall of the inner tub (2) to provide support for the inner tub (2). The inner tub (2) is integrally molded using a vacuum forming process. The inner tub (2) has a longitudinal partition (21) formed inside to divide the internal accommodating space of the inner tub (2) into at least two independent brewing chambers (23). The openings of the multiple brewing chambers (23) are all connected to the open opening at the top of the inner tub (2).
2. The convenient food combination packaging barrel according to claim 1, characterized in that, The upper end of the partition (21) is lower than the upper end of the inner barrel (2).
3. The convenient food combination packaging barrel according to claim 1, characterized in that, The inner tub (2) has an outward flange (22) on the upper side wall, which overlaps the upper side wall of the outer tub (1).
4. The convenient food combination packaging barrel according to claim 3, characterized in that, The upper side wall of the outer barrel (1) is provided with an outward rolled edge (11), and the flange (22) overlaps the rolled edge (11).
5. The convenient food combination packaging bucket according to claim 1, characterized in that, The inner corners of the inner barrel (2) are all provided with rounded corner transitions.
6. The convenient food combination packaging bucket according to claim 1, characterized in that, The side wall of the inner barrel (2) is inclined outward in the direction close to the opening, and the inclination angle of the side wall of the inner barrel (2) is ≤6°.
7. The convenient food combination packaging bucket according to claim 1, characterized in that, The longitudinal projection of the partition (21) is S-shaped.
8. The convenient food combination packaging bucket according to any one of claims 1-7, characterized in that, The partition (21) divides the internal space of the inner bucket (2) into two independent brewing chambers (23). The partition (21) is configured as two partition pieces (211) connected together at the upper end. The distance between the two partition pieces (211) gradually increases near the outer bucket (1).
9. The convenient food combination packaging bucket according to claim 8, characterized in that, The outer drum (1) is made of paper, and the inner drum (2) is made of polypropylene.
10. The convenient food combination packaging bucket according to claim 9, characterized in that, The inner barrel (2) has a wall thickness ≥ 0.48 mm; or the inner barrel (2) has a depth ≥ 87 mm; or the partition (211) is inclined toward another partition (211) in the direction close to the opening, and the inclination angle of the partition (211) is ≤ 2.8°.