Coffee powder packaging box
By designing an expansion cavity and contraction cavity combined with a groove structure for coffee powder packaging boxes, stress is dispersed and the shape of coffee beans is simulated, solving the problems of sealing failure and monotonous design, achieving improved sealing performance and enhanced aesthetics, and meeting market demands.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-06
AI Technical Summary
Existing boxed coffee powder packaging is prone to seal failure under external pressure, increasing the probability of coffee powder leakage and spoilage. In addition, the monotonous design makes it difficult to attract consumers and promote the product in the market.
Design a coffee powder packaging box that uses an expanding cavity with a gradually increasing inner diameter and a contracting cavity with a gradually decreasing inner diameter, combined with grooves to form the shape of a coffee bean, and uses an aluminum foil composite film for sealing to disperse stress and simulate the appearance of a coffee bean.
It reduces the probability of sealing film failure, reduces coffee powder leakage and spoilage, enhances the aesthetics and market appeal of the packaging, and meets the needs of market promotion.
Smart Images

Figure CN223972951U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of powder packaging technology, specifically relating to a coffee powder packaging box. Background Technology
[0002] Currently, the main types of packaging for coffee powder are bags, boxes, or cans. However, based on portability and the need for precise dosage, bags and boxes are the most common. For boxed coffee, it can be understood that the coffee powder is packaged in a single-use dose and then sealed with a lid or sealing film. When using it, the coffee powder can be poured out after opening the lid and sealing film.
[0003] However, while the aforementioned boxed coffee can produce a fixed amount of coffee, it has the following technical drawbacks:
[0004] 1) When the box is squeezed by external force, the stress is concentrated on the lid or sealing film. Therefore, it is easy to cause the opening to fail to seal. This not only increases the probability of coffee powder leaking accidentally, but also causes the coffee powder to deteriorate and lose its aroma due to insufficient sealing of the opening.
[0005] 2) The box design is relatively simple and it is difficult to attract consumers from the packaging, making it difficult for the overall design to meet the needs of market promotion. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved coffee powder packaging box.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0008] A coffee powder packaging box includes a box body and a sealing film sealing the opening of the box body. The box body is recessed inward at the opening to form a box cavity. The box body includes an annular box edge, a first box wall and a second box wall extending inward from the annular edge of the box edge. The cavity extending inward from the first box wall is an outwardly expanding cavity with a gradually increasing inner diameter, and the cavity extending inward from the second box wall is a gradually decreasing inner diameter contracting cavity. A groove is formed on the second box wall that is recessed from the surface towards the opening. The overall shape formed by the groove and the second box wall is similar to the shape of a coffee bean, and the outwardly expanding cavity and the groove can form multi-directional stress dispersion.
[0009] Preferably, the thickness projection of the box edge itself forms an elliptical ring. This elliptical ring shape more accurately simulates the shape of a coffee bean.
[0010] Furthermore, the box edges are flattened. This provides sufficient contact area to form the required seal.
[0011] According to a specific embodiment and preferred aspect of this utility model, the first box wall includes an outwardly expanding wall section extending inward from the ring edge of the box side, and an inwardly contracting ring section formed at the end of the outwardly expanding wall section and converging towards the center, wherein the inwardly contracting ring section and the outwardly expanding wall section form an outwardly expanding cavity. The purpose of this design is mainly to alleviate the stress exerted from the second box wall in the opening direction, avoid stress concentration on the sealing film, and reduce the probability of seal failure.
[0012] Preferably, the thickness projection of the inner ring segment itself is an elliptical ring. This elliptical ring shape more accurately simulates a shape similar to a coffee bean.
[0013] In some specific embodiments, the second box wall extends inward from the inner ring of the inner ring section to form a contracting cavity. This not only increases the deformation resistance of the first box wall but also enhances the overall aesthetic appeal.
[0014] According to a specific embodiment and preferred aspect of this utility model, the groove width gradually decreases from the outside to the inside. Based on grooves with different widths, not only is the overall design aesthetic optimized, but the deformation requirements under different pressures are also met. Furthermore, it facilitates the repositioning of the second box wall after deformation and the decomposition of stress.
[0015] Preferably, the groove extends from one end of the second box wall to the other in the projection of the second box wall onto the opening surface. This satisfies the need for deformation at multiple angles and also provides a more three-dimensional appearance.
[0016] In some specific implementations, the grooves resemble an S-shape. This better showcases the aesthetic appeal of the overall design.
[0017] In addition, the sealing film is an aluminum foil composite film; this prevents the film from reacting chemically with the coffee powder.
[0018] Furthermore, the sealing film forms a sealing contact area that is at least 1 / 10 of the box body's area projected from the groove to the opening. This provides sufficient sealing contact surface, ensuring a secure seal and enhancing the sealing film's impact resistance.
[0019] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:
[0020] Existing boxed coffee powder packaging suffers from stress concentration on the lid or sealing film when subjected to external pressure. This easily leads to seal failure, increasing the probability of accidental leakage and causing spoilage and aroma loss. Furthermore, the box's design is often monotonous and fails to attract consumers, making it unsuitable for market promotion. This invention addresses these shortcomings by redesigning the coffee powder packaging. The new packaging fills the shrinkage and expansion cavities with coffee powder and seals it with a sealing film, creating a coffee bean-shaped box. This design effectively disperses stress in multiple directions through the expansion cavities and grooves, reducing the probability of stress concentration and sealing film failure, thus improving sealing performance and minimizing leakage, spoilage, and aroma loss. The overall shape, resembling a coffee bean, significantly enhances aesthetics and meets market demands, while its simple structure and ease of implementation further improve its appeal. Attached Figure Description
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0022] Figure 1 This is a schematic diagram of the coffee powder packaging box in this embodiment;
[0023] Figure 2 for Figure 1 Front view diagram;
[0024] Figure 3 for Figure 2 A left-view diagram;
[0025] Figure 4 for Figure 2 A diagram showing the view from the right.
[0026] Figure 5 for Figure 2 A top-down view;
[0027] Figure 6 for Figure 2 A diagram showing the view from below;
[0028] Figure 7 for Figure 2 A schematic diagram of the AA-direction section;
[0029] Wherein: 1. Box body; 1a. Box edge; 1b. First box wall; 10b. Outwardly expanding wall section; 11b. Inwardly contracting ring section; 1c. Second box wall; 10. Groove;
[0030] 2. Sealing film. Detailed Implementation
[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.
[0036] like Figures 1 to 7 As shown, the coffee powder packaging box of this embodiment includes a box body 1 and a sealing film 2 that seals the opening of the box body 1. The box body 1 is recessed inward at the opening to form a box cavity. The sealing film 2 is an aluminum foil composite film to prevent the film from reacting chemically with the coffee powder.
[0037] Specifically, the box body 1 includes an annular box edge 1a, a first box wall 1b and a second box wall 1c extending inward from the annular edge of the box edge 1a, wherein the cavity extending inside the first box wall 1b is an outwardly expanding cavity with a gradually increasing inner diameter, and the cavity extending inside the second box wall 1c is a contracting cavity with a gradually decreasing inner diameter.
[0038] In some specific embodiments, the thickness projection of the box edge 1a is elliptical. This elliptical shape more accurately simulates the shape of a coffee bean. The box edge 1a is flat, providing sufficient contact area to form the required seal.
[0039] The first box wall 1b includes an outwardly expanding wall section 10b extending inward from the ring edge of the box edge 1a, and an inwardly contracting ring section 11b formed at the end of the outwardly expanding wall section 10b and converging towards the center, wherein the inwardly contracting ring section 11b and the outwardly expanding wall section 10b form an outwardly expanding cavity. The purpose of this design is primarily to alleviate the stress exerted by the second box wall in the opening direction, avoiding stress concentration on the sealing film and reducing the probability of seal failure. The thickness projection of the inwardly contracting ring section 11b is elliptical. Based on the elliptical ring shape, it is possible to more accurately simulate a shape similar to a coffee bean.
[0040] The second box wall 1c extends inward from the inner ring of the inner ring segment 11b to form a contracting cavity. This not only increases the deformation resistance of the first box wall, but also enhances the overall aesthetic appeal.
[0041] Furthermore, a groove 10c is formed on the second box wall 1c, recessed from the surface towards the opening. The overall shape formed by the groove 10c and the second box wall resembles the shape of a coffee bean, and the outward-expanding cavity and groove can create multi-directional stress dispersion. Specifically, the groove 10c is set with a gradually decreasing width from the outside to the inside. Based on the different groove widths, not only is the overall design aesthetic optimized, but the deformation requirements under different pressures are also met, which is also beneficial for the second box wall to return to its original position and for stress decomposition after deformation. In this example, the groove 10c extends from one end of the second box wall 1c to the other in the projection of the second box wall 1c onto the opening surface. This meets the deformation requirements under multiple angles and also has a more three-dimensional shape. In some specific embodiments, the groove is similar to an S-shape. This further enhances the aesthetic appeal of the overall shape.
[0042] Furthermore, the sealing film 2 forms a sealing contact area that is at least 1 / 10 of the box body's projected area from the groove to the opening (in other words, the area of the box edge 1a is at least 1 / 10 of the box body's projected area from the groove to the opening). This provides sufficient sealing contact surface, ensuring a secure seal and enhancing the sealing film's impact resistance. Simultaneously, it facilitates the opening of the sealing film 2 by forming a pull tab at the end of the sealing film 2, extending outwards.
[0043] In summary, by using this coffee powder packaging box, coffee powder is filled into the shrinkage cavity and the expansion cavity, and then sealed with a sealing film to form a coffee bean-shaped packaging box similar in shape to a coffee bean. Therefore, this utility model has several advantages. First, the expansion cavity and grooves can create multi-directional stress dispersion, reducing the probability of the sealing film failing due to stress concentration, improving sealing performance, and reducing the probability of accidental leakage, spoilage, and aroma loss of coffee powder. Second, the overall shape is similar to a coffee bean, significantly improving the overall aesthetic appeal and meeting the needs of market promotion. Furthermore, the structure is simple and easy to implement. Third, the thickness projection of the box edge is elliptical, which more accurately simulates the shape similar to a coffee bean. The flattened box edge provides sufficient contact area for the required seal. Fourth, the first box wall includes an expansion wall section extending inward from the ring edge of the box edge and an inward-converging ring section formed at the end of the expansion wall section and converging towards the center. The inward-converging ring section and the expansion wall section form the expansion cavity. This design primarily aims to alleviate stress from the second box wall. The stress applied towards the opening direction avoids stress concentration on the sealing film, thus reducing the probability of seal failure; fifthly, the second box wall extends inward from the inner ring of the inner ring section to form a shrinkage cavity, which not only increases the deformation resistance of the first box wall but also enhances the overall aesthetic appeal. Simultaneously, the groove width gradually decreases from the outside to the inside. Based on grooves of varying widths, this not only optimizes the overall design but also meets the deformation requirements under different pressures. Furthermore, it facilitates the recovery of the second box wall after deformation and the decomposition of stress. The groove extends from one end of the second box wall to the other in the projection of the second box wall onto the opening surface. This satisfies the need for deformation at multiple angles and also has a more three-dimensional shape. In addition, the groove is similar to an S-shape, which can better showcase the aesthetics of the overall shape. The sixth aspect is that the sealing film is an aluminum foil composite film to avoid chemical reaction between the film and the coffee powder. The sealing contact area formed by the sealing film is at least 1 / 10 of the area of the box body projected from the groove to the opening. This provides sufficient sealing contact surface, which not only ensures a firm seal but also enhances the impact resistance of the sealing film.
[0044] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. A coffee powder packaging box comprising a box body, a sealing film sealed at an opening of the box body, wherein the box body is inwardly recessed at the opening to form a box cavity, characterized in that: The box body comprises a ring-shaped box edge, a first box wall and a second box wall extending inward from the ring edge of the box edge, wherein the cavity extending inward from the first box wall is an outward expanding cavity with gradually increasing inner diameter, the cavity extending inward from the second box wall is a contracting cavity with gradually decreasing inner diameter, and a groove is formed on the second box wall and recessed from the surface to the opening, wherein the overall shape of the groove and the second box wall is similar to the shape of coffee beans, and the outward expanding cavity and the groove can form multi-directional stress dispersion.
2. The coffee powder packaging box according to claim 1, characterized in that: The thickness direction projection of the box edge itself is an oval ring shape.
3. The coffee powder packaging box according to claim 2, characterized in that: The box edge is flat.
4. The coffee powder packaging box according to claim 1, characterized in that: The first box wall comprises an outward expanding wall section extending inward from the ring edge of the box edge, and an inward contracting ring section formed at the end of the outward expanding wall section and contracted to the middle, wherein the inward contracting ring section and the outward expanding wall section form the outward expanding cavity.
5. The coffee pack according to claim 4, characterized in that: The thickness direction projection of the inward contracting ring section itself is an oval ring shape.
6. A coffee powder packaging box according to claim 4 or 5, characterized in that: The second box wall extends inward from the inner ring of the inward contracting ring section to form the contracting cavity.
7. The coffee powder packaging box according to claim 1, characterized in that: The groove width gradually decreases from the outside to the inside.
8. The coffee pack according to claim 1, characterized in that: The projection of the groove on the opening surface of the second box wall extends from one end of the second box wall to the other end.
9. The coffee pack according to claim 8, characterized in that: The groove is similar to an S shape.
10. The coffee pack according to claim 1, characterized in that: The sealing film is an aluminum foil composite film; and / or, the sealing film forms a sealing contact area which is at least 1 / 10 of the area of the normal projection of the box body from the groove to the opening.