Packaging structure
By designing the combination of the flap and inner packaging components in the packaging structure, and utilizing the joint lines and accessory slots, the problem of products being scratched by knives during the unpacking process was solved, achieving both protection and cost optimization.
Patent Information
- Application Number
- CN202522689252.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-18
AI Technical Summary
Existing packaging structures cannot effectively protect products during the unpacking process, especially preventing knife cuts to product accessories.
A packaging structure was designed, including a box and a lid. The lid consists of a first outer flap, a second outer flap, a first inner flap, and a second inner flap. The inner packaging has an accessory slot. By cutting the tape along the joint line when opening the box, the inner flap and the inner packaging can be prevented from blocking the knife. The accessory slot avoids the joint line to reduce the probability of scratches.
It improves the protection of products during unpacking, reduces the probability of knife scratches on accessories, expands the variety of packageable products, and reduces production costs by flexibly adjusting the width of the flap and the position of the accessory slot.
Smart Images
Figure CN224929407U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging technology, and in particular to a packaging structure. Background Technology
[0002] Products are typically encased in packaging during transportation to protect them from damage caused by collisions. Once the product arrives at its destination, it is unpacked and removed from the packaging. However, the use of knives to open the packaging can easily scratch the product. Therefore, there is an urgent need for a packaging structure that can protect the product during the unpacking process. Utility Model Content
[0003] This application addresses the problem that existing packaging structures cannot protect products during the unpacking process, and proposes a packaging structure that has the technical effect of protecting products during the unpacking process.
[0004] A packaging structure comprising:
[0005] A packaging box includes a box body and a cover movably connected to the box body. The box body and the cover together enclose a receiving cavity. The cover includes a first outer flap, a second outer flap, a first inner flap, and a second inner flap. The first outer flap and the second outer flap are independently provided and together form the first cavity wall of the receiving cavity. The joint between the first outer flap and the second outer flap forms a first joint line. The first inner flap and the second inner flap are spaced apart and are both stacked below the first cavity wall.
[0006] An inner packaging component is located within the accommodating cavity, and the inner packaging component has an accessory slot facing the first cavity wall, the accessory slot being used to place accessories;
[0007] The first inner flap has a first edge located away from the housing, the second inner flap has a second edge located away from the housing, and the boundary of the accessory slot avoids the first mating line.
[0008] When it is necessary to remove the product from the packaging box, in order to reuse the packaging box, the user can use a knife to cut the tape covering it along the first joint line (i.e. the joint between the first outer flap and the second outer flap) so that the packaging box can be reused without damaging the first outer flap and the second outer flap.
[0009] When using a knife to cut the tape along the first joint line, the inner flap and inner packaging are located between the product and the outer flap. Therefore, the inner flap and inner packaging act as a barrier, preventing the product's accessories from being scratched by the knife. Furthermore, the accessory slot avoids the first joint line, further reducing the probability of the knife cutting through the accessory slot and thus damaging the accessories, thus improving the protective effect of the packaging structure.
[0010] In one embodiment, the first cavity wall includes a single-layer region and a double-layer region, wherein the portion of the first outer flap and the second outer flap that overlaps with the first inner flap or the second inner flap is constructed as a double-layer region, and the remaining portion is constructed as a single-layer region.
[0011] When the accessory slot is provided corresponding to the single-layer area, the boundary of the accessory slot avoids the first mating line.
[0012] In this way, the range of accessory slots can be expanded by limiting the accessory slots located in a single-layer area, thus enriching the types of products that can be packaged.
[0013] In one embodiment, the sum of the widths of the first outer flap and the second outer flap is equal to the length of the first inner flap, and the projection of the accessory slot on the first cavity wall is located within at least one of the first outer flap, the second outer flap, the first inner flap, and the second inner flap.
[0014] In this way, the width of the corresponding flap can be flexibly adjusted according to the projection of the accessory slot after it is packed into the box, so as to adjust the position of the first joint line, thereby avoiding the first joint line while minimizing the unfolded area of the packaging box, thus reducing the manufacturing cost of the packaging box.
[0015] In one embodiment, the length of the first inner flap is b, and when the widths of the first outer flap, the second outer flap, the first inner flap, and the second inner flap are equal, the width is 1 / 2b. An initial joint line is formed at the joint of the first outer flap and the second outer flap. The first inner flap has a first initial edge, and the second inner flap has a second initial edge.
[0016] When the accessory slot coincides with the initial mating line, the width of at least two of the first outer flap, the second outer flap, the first inner flap, and the second inner flap changes.
[0017] Using this as the initial cardboard, the width of the two outer flaps or the inner flap can be adjusted accordingly. This not only makes it easier to adjust the width of the flaps, but also makes it easier to quickly fold the cardboard to obtain a packaging box that meets the requirements.
[0018] In one embodiment, the clearance distance of the boundary of the accessory slot is a, the distance of the boundary of the accessory slot beyond the first initial edge is L1, the distance of the boundary of the accessory slot beyond the initial mating line is L2, and L1 > L2.
[0019] When the accessory slot is set corresponding to the first outer cover, the width of the first outer cover is b1 = 1 / 2b + L2 + a, and the width of the second outer cover is b2 = 1 / 2b - L2 - a;
[0020] Alternatively, when the accessory slot is provided corresponding to the second outer cover, the width of the second outer cover is b2 = 1 / 2b + L2 + a, and the width of the first outer cover is b1 = 1 / 2b - L2 - a.
[0021] Therefore, choosing to widen the first outer flap is a better solution, as it can reduce the unfolded area of the packaging box and thus reduce the production cost of the packaging box.
[0022] In one embodiment, the clearance distance of the boundary of the accessory slot is a, the distance by which the boundary of the accessory slot exceeds the first initial edge or the second initial edge is L1, and the distance by which the boundary of the accessory slot exceeds the initial mating line is L2, where L1 < L2.
[0023] When the accessory slot is positioned close to the first inner flap, the width of the first inner flap is b3 = 1 / 2b + L1 + a; when the accessory slot is positioned close to the second inner flap, the width of the second inner flap is b4 = 1 / 2b + L1 + a.
[0024] Therefore, choosing to widen the first inner flap is a better solution, as it can reduce the unfolded area of the packaging box and thus reduce the production cost of the packaging box.
[0025] In one embodiment, the clearance distance of the boundary of the accessory slot is 'a'. The accessory slot includes a first accessory slot and a second accessory slot. Both the first accessory slot and the second accessory slot coincide with the initial mating line. The boundary of the first accessory slot extends beyond the first initial edge by a distance of L3 and extends beyond the initial mating line by a distance of L5. The boundary of the second accessory slot extends beyond the first initial edge by a distance of L4 and extends beyond the initial mating line by a distance of L6, wherein L4 > L5 > L3 > L6.
[0026] When both the first accessory slot and the second accessory slot are provided corresponding to the first outer cover, the width of the first outer cover is b1=1 / 2b+L6+a, and the width of the first inner cover is b3=1 / 2b+L3+a.
[0027] Alternatively, when both the first accessory slot and the second accessory slot are provided corresponding to the second outer cover, the width of the second outer cover is b2 = 1 / 2b + L6 + a, and the width of the second inner cover is b4 = 1 / 2b + L3 + a.
[0028] To reduce the area of the unfolded packaging box, the width of the first outer flap can be increased to b1 = 1 / 2b + L6 + a, and the width of the first inner flap can be increased to b3 = 1 / 2b + L3 + a. If only the first outer flap is adjusted, it must be increased to b1 = 1 / 2b + L5 + a. If only the first inner flap is adjusted, it must be increased to b3 = 1 / 2b + L4 + a.
[0029] Because L4 > L5 > L3 > L6, the unfolded area of the packaging box obtained by simultaneously widening both the first outer flap and the first inner flap is significantly smaller than the unfolded area of the packaging box obtained by widening only one of the outer or inner flaps. Therefore, simultaneously widening both the first outer flap and the first inner flap is the better solution.
[0030] In one embodiment, the clearance distance of the boundary of the accessory slot is 'a'. The accessory slot includes a first accessory slot and a second accessory slot. Both the first accessory slot and the second accessory slot coincide with the initial mating line. The boundary of the first accessory slot extends beyond the first initial edge by a distance of L3 and extends beyond the initial mating line by a distance of L5. The boundary of the second accessory slot extends beyond the first initial edge by a distance of L4 and extends beyond the initial mating line by a distance of L6, wherein L4 > L5 > L3 > L6.
[0031] The width of the first outer flap is b2 = 1 / 2b + L6 + a, and the widths of the first inner flap and the second inner flap are both 1 / 2b + L3 + a.
[0032] The difference between this example and the previous one is that the widths of the first and second inner flaps are kept consistent. This design reduces the complexity of the packaging box design, allowing for the use of a simpler die-cutting mold to obtain the cardboard for the packaging box.
[0033] In one embodiment, the clearance distance at the boundary of the accessory slot is a, where a ≥ 10 mm.
[0034] This design reduces the probability of users accidentally damaging parts by deviating from the first mating line when using the knife during unpacking.
[0035] In one embodiment, the packaging box is formed by folding a die-cut piece of cardboard.
[0036] Thus, the use of die-cutting for irregular contours (such as windows and carrying handles) and special functional structures (such as cushioning slots) increases the flexibility of the packaging box structure. Mass production is possible, increasing production efficiency and reducing costs. Furthermore, when not assembled, the boxes can be laid flat to save storage and transportation space. Attached Figure Description
[0037] Figure 1 This is a schematic diagram of the structure of a packaging box provided for some embodiments of this application.
[0038] Figure 2 A top view of a packaging box provided for some embodiments of this application.
[0039] Figure 3 An unfolded view of a packaging box provided for some embodiments of this application.
[0040] Figure 4 A top view of a packaging box provided for some embodiments of this application in another situation.
[0041] Figure 5 for Figure 4 An unfolded diagram of the packaging box.
[0042] Figure 6 A top view of a packaging box provided for some embodiments of this application in yet another situation.
[0043] Figure 7 for Figure 6 An unfolded diagram of the packaging box.
[0044] Explanation of reference numerals in the attached figures:
[0045] 10. Box body; 20. Lid body; 21. First outer flap; 22. Second outer flap; 23. First inner flap; 231. First edge; 24. Second inner flap; 241. Second edge; 30. Accessory slot; 31. First accessory slot; 32. Second accessory slot; 40. First joint line; 50. Initial joint line; 60. First initial edge; 70. Second initial edge; 100. Packaging box. Detailed Implementation
[0046] 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.
[0047] 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.
[0048] 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.
[0049] 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.
[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the 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" the 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.
[0051] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. 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 intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0052] Please see Figures 1 to 3 This application provides a packaging structure in some embodiments, which includes a packaging box 100 and inner packaging components. The packaging box 100 includes a box body 10 and a cover 20 movably connected to the box body 10. The box body 10 and the cover 20 together enclose a receiving cavity. The cover 20 includes a first outer flap 21, a second outer flap 22, a first inner flap 23, and a second inner flap 24. The first outer flap 21 and the second outer flap 22 are independently arranged and together form the first cavity wall of the receiving cavity. The joint between the first outer flap 21 and the second outer flap 22 forms a first joint line 40. The first inner flap 23 and the second inner flap 24 are spaced apart and are both stacked below the first cavity wall.
[0053] The inner packaging is located within the accommodating cavity and has an accessory slot 30 facing the first cavity wall for placing accessories. The first inner flap 23 has a first edge 231 located away from the box body 10, and the second inner flap 24 has a second edge 241 located away from the box body 10. The boundary of the accessory slot 30 avoids the first joint line 40.
[0054] Both the packaging box 100 and the inner packaging can be made of the same cardboard material. The inner packaging has multiple accessory slots 30 for inserting parts of the product, thereby improving the installation stability between the product and the inner packaging. Furthermore, placing the inner packaging between the packaging box 100 and the product increases the stability of the product within the packaging box 100, reducing the probability of the product shaking and breaking within the packaging box 100.
[0055] The process of packaging products using packaging structure is roughly as follows: First, the inner packaging is installed on the outside of the product. Then, the product equipped with the inner packaging is placed into the receiving cavity of the box 10 through the opening of the box 10, and the accessory slot 30 is set directly opposite the opening of the box 10 to limit and protect the accessories of the product, and prevent them from moving or being directly exposed.
[0056] Next, fold the first inner flap 23 and the second inner flap 24 over so that they are positioned above the inner packaging. Then, fold the first outer flap 21 and the second outer flap 22 over so that they are positioned above the first inner flap 23 and the second outer flap 22. The first and second outer flaps can form a first cavity wall to completely cover the opening. Finally, the user can use tape or other components to glue the first and second outer flaps together to complete the sealing of the packaging box 100.
[0057] When it is necessary to remove the product from the packaging box 100, in order to reuse the packaging box 100, the user can use a knife to cut the tape covering it along the first joint line 40 (i.e. the joint between the first outer flap 21 and the second outer flap 22) so as to reuse the packaging box 100 without damaging the first outer flap 21 and the second outer flap 22.
[0058] When using a cutting tool to cut the tape along the first joint line 40, the inner flap and inner packaging are located between the product and the outer flap, thus acting as a barrier to prevent the product's accessories from being scratched by the cutting tool. Furthermore, the accessory groove 30 avoids the first joint line 40, further reducing the probability of the cutting tool cutting through the accessory groove 30 and thus damaging the accessories, thereby improving the protective effect of the packaging structure.
[0059] In some embodiments, the first cavity wall includes a single-layer region and a double-layer region. The portion of the first outer cover 21 and the second outer cover 22 that overlaps with the first inner cover 23 or the second inner cover 24 is constructed as a double-layer region, and the remaining portion is constructed as a single-layer region. When the accessory slot 30 is provided corresponding to the single-layer region, the boundary of the accessory slot 30 avoids the first mating line 40.
[0060] Folding all the inner and outer flaps over to cover the opening of the housing 10, the projections of the first inner flap 23 and the second inner flap 24 onto the first cavity wall only overlap with a portion of the first outer flap 21 and a portion of the second outer flap 22. In other words, the area formed by the inner and outer flaps together on the first cavity wall is divided into a double-layer area and a single-layer area.
[0061] When the cutter moves along the first joint line 40, it will pass through the double-layer area and the single-layer area. In the double-layer area, since the inner flap is located between the inner packaging and the outer flap, the inner flap can play a partial blocking role. After the cutter cuts the tape, it will not directly contact the inner packaging. Therefore, the accessory slot 30 can be set in the double-layer area to widen the setting range of the accessory slot 30.
[0062] When the blade passes through the single-layer area, it can directly contact the inner packaging after cutting the tape. Therefore, by making the accessory groove 30 in the single-layer area avoid the first joint line 40, the probability of the blade cutting the accessory groove 30 and thus damaging the accessory can be reduced.
[0063] In this way, the accessory slot 30, which is set in a single-layer area, is limited, thus expanding the setting range of the accessory slot 30 and enriching the types of products that can be packaged.
[0064] Furthermore, in some embodiments, the clearance distance of the boundary of the fitting groove 30 is a, where a ≥ 10 mm.
[0065] In other words, when the accessory slot 30 is set in a single-layer area, the boundary of the accessory slot 30 and the first joint line 40 are at least 10mm apart, while avoiding the first joint line 40. This can reduce the probability that the user will deviate from the first joint line 40 when using a knife during the unpacking process, thereby accidentally damaging the accessories.
[0066] Furthermore, in some embodiments, the sum of the widths of the first outer cover 21 and the second outer cover 22 is equal to the length of the first inner cover 23, and the projection of the accessory slot 30 on the first cavity wall is located within at least one of the first outer cover 21, the second outer cover 22, the first inner cover 23, and the second inner cover 24.
[0067] When the first outer flap 21, the second outer flap 22, the first inner flap 23, and the second inner flap 24 are all folded up to cover the opening of the housing 10, the position of the accessory slot 30 in the single-layer area can be adjusted according to the actual situation of the accessories so that its projection on the first cavity wall falls as close as possible to one of the flaps.
[0068] For example, when most of the projection of the accessory slot 30 falls on the first outer cover 21 and a small portion falls on the second outer cover 22, the width of the first outer cover 21 can be widened and the width of the second outer cover 22 can be shortened so that the entire projection of the accessory slot 30 falls on the first outer cover 21, ensuring that the boundary of the accessory slot 30 does not exceed the first mating line 40, and that the sum of the widths of the first outer cover 21 and the second outer cover 22 remains unchanged.
[0069] If the projection of the accessory slot 30 falls on the two outer flaps and the first inner flap 23, the simplest solution is to widen the first inner flap 23 to completely obscure the accessory slot 30. It is understandable that the widths of the inner and outer flaps can also be adjusted based on the projection of the accessory slot 30 onto the flaps; however, this will not be described in detail here.
[0070] In this way, the width of the corresponding flap can be flexibly adjusted according to the projection of the accessory slot 30 after it is packed, so as to adjust the position of the first joint line 40, thereby avoiding the first joint line 40 while minimizing the unfolded area of the packaging box 100, thus reducing the manufacturing cost of the packaging box 100.
[0071] Specifically, in some embodiments, the length of the first inner flap 23 is b, and when the widths of the first outer flap 21, the second outer flap 22, the first inner flap 23, and the second inner flap 24 are equal, the width is 1 / 2b. The joint between the first outer flap 21 and the second outer flap 22 forms an initial joint line 50. The first inner flap 23 has a first initial edge 60, and the second inner flap 24 has a second initial edge 70.
[0072] When the accessory slot 30 coincides with the initial mating line 50, the width of at least two of the first outer flap 21, the second outer flap 22, the first inner flap 23, and the second inner flap 24 changes.
[0073] For example, when the length of the first inner flap 23 of the packaging box 100 is b, and the widths of the first outer flap 21, the second outer flap 22, the first inner flap 23, and the second inner flap 24 are equal, and the width is 1 / 2b, the area of the cardboard obtained when the packaging box 100 is unfolded is relatively small. Using this as the initial cardboard, adjusting the width of the two outer flaps or the width of the inner flap not only facilitates the adjustment of the flap width but also facilitates the subsequent rapid folding of the cardboard to obtain a packaging box 100 that meets the requirements.
[0074] The following section describes the adjustment methods for different outer and inner flaps by referring to the different distances between the accessory slot 30 and the initial mating line 50, the first initial edge 60, and the second initial edge 70.
[0075] like Figure 2 and Figure 3 As shown, in some embodiments, the boundary of the accessory slot 30 extends beyond the first initial edge 60 by a distance L1, and the boundary of the accessory slot 30 extends beyond the initial mating line 50 by a distance L2, where L1 > L2; when the accessory slot 30 is set corresponding to the first outer swivel cover 21, the width of the first outer swivel cover 21 is b1 = 1 / 2b + L2 + a, and the width of the second outer swivel cover 22 is b2 = 1 / 2b - L2 - a; or, when the accessory slot 30 is set corresponding to the second outer swivel cover 22, the width of the second outer swivel cover 22 is b2 = 1 / 2b + L2 + a, and the width of the first outer swivel cover 21 is b1 = 1 / 2b - L2 - a.
[0076] Taking the example where most of the projection of the accessory slot 30 is located on the first outer cover 21, assume that a small portion of the projection of the accessory slot 30 falls on the second outer cover 22, and that all the projections of the accessory slot 30 are located outside the first inner cover 23. Specifically, the distance from the projection boundary outside the first inner cover 23 to the first edge 231 is L1, and the distance from the projection boundary of the second outer cover 22 to the initial bonding line 50 is L2, where L1 > L2.
[0077] If the first outer flap 21 is widened in a certain area, and the first outer flap 21 completely covers the accessory slot 30 to avoid the first mating line 40, then the width of the first outer flap 21 is b1 = 1 / 2b + L2 + a, and the width of the second outer flap 22 is b2 = 1 / 2b - L2 - a. This ensures that a safe distance a is maintained between the boundary of the first mating line 40 and the accessory slot 30, and keeps the sum of the widths of the first outer flap 21 and the second outer flap 22 constant, thereby minimizing the unfolded area of the packaging box 100.
[0078] If we start by widening the first inner flap 23, and in order to make the accessory slot 30 avoid the initial mating line 50, then the width of the first inner flap 23 can only be widened to b3 = 1 / 2b + L1 + a, so that the accessory slot 30 is entirely located in the double-layer area. Because L1 is greater than L2, and the sum of the widths of the first outer flap 21 and the second outer flap 22 remains constant, the unfolded area of the packaging box 100 will necessarily be greater than the unfolded area of the packaging box 100 when the first outer flap 21 is widened.
[0079] Therefore, choosing to widen the first outer flap 21 locally is a better solution, which can reduce the unfolded area of the packaging box 100 and thus reduce the production cost of the packaging box 100.
[0080] like Figure 4 and Figure 5 As shown, in some embodiments, the boundary of the accessory slot 30 extends beyond the first initial edge 60 by a distance L1, and the boundary of the accessory slot 30 extends beyond the initial mating line 50 by a distance L2, where L1 < L2; when the accessory slot 30 is positioned close to the first inner cover 23, the width of the first inner cover 23 is b3 = 1 / 2b + L1 + a; when the accessory slot 30 is positioned corresponding to the second inner cover 24, the width of the second inner cover 24 is b4 = 1 / 2b + L1 + a.
[0081] Taking the example where most of the projection of the accessory slot 30 is located on the first outer cover 21 and close to the first inner cover 23. Assume that a small portion of the projection of the accessory slot 30 falls on the second outer cover 22, and all the projections of the accessory slot 30 are located outside the first inner cover 23. Specifically, the distance from the projection boundary outside the first inner cover 23 to the first edge 231 is L1, and the distance from the projection boundary of the second outer cover 22 to the initial bonding line 50 is L2, where L1 < L2.
[0082] If the first outer flap 21 is widened in a certain area, and the first outer flap 21 completely covers the accessory slot 30 to avoid the first mating line 40, then the width of the first outer flap 21 is b1 = 1 / 2b + L2 + a, and the width of the second outer flap 22 is b2 = 1 / 2b - L2 - a. This ensures that a safe distance a is maintained between the boundary of the first mating line 40 and the accessory slot 30, and keeps the sum of the widths of the first outer flap 21 and the second outer flap 22 constant, thereby minimizing the unfolded area of the packaging box 100.
[0083] If we start by widening the first inner flap 23, and in order to make the accessory slot 30 avoid the initial mating line 50, then the width of the first inner flap 23 can only be widened to b3 = 1 / 2b + L1 + a, so that the accessory slot 30 is entirely located in the double-layer area. Because L1 is less than L2, and the sum of the widths of the first outer flap 21 and the second outer flap 22 remains constant, the unfolded area of the packaging box 100 will inevitably be less than the unfolded area of the packaging box 100 when the first outer flap 21 is widened.
[0084] Therefore, choosing to widen the first inner flap 23 locally is a better solution, which can reduce the unfolded area of the packaging box 100, thereby reducing the production cost of the packaging box 100.
[0085] When there is more than one accessory slot 30 in a single-layer area, the width of the inner and outer flaps can be adjusted simultaneously.
[0086] For example, such as Figure 6 and Figure 7 As shown, the accessory slot 30 includes a first accessory slot 3130 and a second accessory slot 3230. Both the first accessory slot 3130 and the second accessory slot 3230 coincide with the initial mating line 50. The boundary of the first accessory slot 3130 extends beyond the first initial edge 60 by a distance of L3 and extends beyond the initial mating line 50 by a distance of L5. The boundary of the second accessory slot 3230 extends beyond the first initial edge 60 by a distance of L4 and extends beyond the initial mating line 50 by a distance of L6, where L4 > L5 > L3 > L6.
[0087] When the first accessory slot 3130 and the second accessory slot 3230 are both set corresponding to the first outer cover 21, the width of the first outer cover 21 is b1=1 / 2b+L6+a, and the width of the first inner cover 23 is b3=1 / 2b+L3+a.
[0088] Alternatively, when both the first accessory slot 3130 and the second accessory slot 3230 are set corresponding to the second outer cover 22, the width of the second outer cover 22 is b2=1 / 2b+L6+a, and the width of the second inner cover 24 is b4=1 / 2b+L3+a.
[0089] Taking the example where most of the projections of the first accessory slot 3130 and the second accessory slot 3230 are located on the first outer cover 21 and close to the first inner cover 23. Assume the distance from the projection boundary of the first accessory slot 3130 to the first edge 231 is L3, and the distance from the projection boundary of the first accessory slot 3130 on the second outer cover 22 to the initial bonding line 50 is L5. The distance from the projection boundary of the second accessory slot 3230 to the first edge 231 is L4, and the distance from the projection boundary of the second accessory slot 3230 on the second outer cover 22 to the initial bonding line 50 is L6. Where L4 > L5 > L3 > L6.
[0090] To reduce the area of the unfolded packaging box 100, the width of the first outer flap 21 can be increased to b1 = 1 / 2b + L6 + a, and the width of the first inner flap 23 can be increased to b3 = 1 / 2b + L3 + a. If only the first outer flap 21 is adjusted, it must be increased to b1 = 1 / 2b + L5 + a. If only the first inner flap 23 is adjusted, it must be increased to b3 = 1 / 2b + L4 + a.
[0091] Because L4 > L5 > L3 > L6, the unfolded area of the packaging box 100 obtained by simultaneously widening the first outer flap 21 and the first inner flap 23 is significantly smaller than the unfolded area of the packaging box 100 obtained by widening only one of the inner or outer flaps. Therefore, simultaneously widening the first outer flap 21 and the first inner flap 23 is the preferred solution.
[0092] In another example, the accessory slot 30 includes a first accessory slot 3130 and a second accessory slot 3230, both of which coincide with the initial mating line 50. The boundary of the first accessory slot 3130 extends beyond the first initial edge 60 by a distance of L3 and extends beyond the initial mating line 50 by a distance of L5. The boundary of the second accessory slot 3230 extends beyond the first initial edge 60 by a distance of L4 and extends beyond the initial mating line 50 by a distance of L6, wherein L4 > L5 > L3 > L6.
[0093] The width of the first outer cover 21 is b2 = 1 / 2b + L6 + a, and the width of the first inner cover 23 and the second inner cover 24 is 1 / 2b + L3 + a.
[0094] The difference between this example and the previous one is that the widths of the first inner flap 23 and the second inner flap 24 are kept consistent. This arrangement reduces the design complexity of the packaging box 100, allowing for the use of a simpler die-cutting mold to obtain the cardboard for manufacturing the packaging box 100.
[0095] In some embodiments, the packaging box 100 is formed by folding a die-cut piece of cardboard.
[0096] Thus, by employing die-cutting to create irregular contours (such as windows and carrying handles) and special functional structures (such as cushioning slots), the structural flexibility of the packaging box 100 is improved. Mass production is possible, increasing the production efficiency of the packaging box 100 and reducing its production cost. Furthermore, when the packaging box 100 is not assembled, it can be laid flat for storage, saving storage and transportation space.
[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0098] The embodiments described above are merely illustrative of several implementation methods 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 all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A packaging structure, characterized in that, include: A packaging box includes a box body and a cover movably connected to the box body. The box body and the cover together enclose a receiving cavity. The cover includes a first outer flap, a second outer flap, a first inner flap, and a second inner flap. The first outer flap and the second outer flap are independently provided and together form the first cavity wall of the receiving cavity. The joint between the first outer flap and the second outer flap forms a first joint line. The first inner flap and the second inner flap are spaced apart and are both stacked below the first cavity wall. An inner packaging component is located within the accommodating cavity, and the inner packaging component has an accessory slot facing the first cavity wall, the accessory slot being used to place accessories; The first inner flap has a first edge located away from the housing, the second inner flap has a second edge located away from the housing, and the boundary of the accessory slot avoids the first mating line.
2. The packaging structure according to claim 1, characterized in that, The first cavity wall includes a single-layer region and a double-layer region. The portion of the first outer cover and the second outer cover that overlaps with the first inner cover or the second inner cover is constructed as a double-layer region, and the remaining portion is constructed as a single-layer region. When the accessory slot is provided corresponding to the single-layer area, the boundary of the accessory slot avoids the first mating line.
3. The packaging structure according to claim 2, characterized in that, The sum of the widths of the first outer flap and the second outer flap is equal to the length of the first inner flap, and the projection of the accessory slot on the first cavity wall is located within at least one of the first outer flap, the second outer flap, the first inner flap, and the second inner flap.
4. The packaging structure according to claim 2, characterized in that, The length of the first inner flap is b. When the widths of the first outer flap, the second outer flap, the first inner flap, and the second inner flap are equal, the width is 1 / 2b. The joint between the first outer flap and the second outer flap forms an initial joint line. The first inner flap has a first initial edge, and the second inner flap has a second initial edge. When the accessory slot coincides with the initial mating line, the width of at least two of the first outer flap, the second outer flap, the first inner flap, and the second inner flap changes.
5. The packaging structure according to claim 4, characterized in that, The clearance distance of the boundary of the accessory slot is a, the distance of the boundary of the accessory slot beyond the first initial edge is L1, the distance of the boundary of the accessory slot beyond the initial mating line is L2, and L1 > L2. When the accessory slot is set corresponding to the first outer cover, the width of the first outer cover is b1=1 / 2b+L2+a, and the width of the second outer cover is b2=1 / 2b-L2-a; Alternatively, when the accessory slot is provided corresponding to the second outer cover, the width of the second outer cover is b2 = 1 / 2b + L2 + a, and the width of the first outer cover is b1 = 1 / 2b - L2 - a.
6. The packaging structure according to claim 4, characterized in that, The clearance distance of the boundary of the accessory slot is a, the distance of the boundary of the accessory slot beyond the first initial edge or the second initial edge is L1, the distance of the boundary of the accessory slot beyond the initial mating line is L2, and L1 < L2. When the accessory slot is positioned close to the first inner flap, the width of the first inner flap is b3 = 1 / 2b + L1 + a; when the accessory slot is positioned close to the second inner flap, the width of the second inner flap is b4 = 1 / 2b + L1 + a.
7. The packaging structure according to claim 4, characterized in that, The clearance distance of the boundary of the accessory slot is 'a'. The accessory slot includes a first accessory slot and a second accessory slot. Both the first accessory slot and the second accessory slot coincide with the initial mating line. The boundary of the first accessory slot extends beyond the first initial edge by a distance of L3 and extends beyond the initial mating line by a distance of L5. The boundary of the second accessory slot extends beyond the first initial edge by a distance of L4 and extends beyond the initial mating line by a distance of L6, where L4 > L5 > L3 > L6. When both the first accessory slot and the second accessory slot are provided corresponding to the first outer cover, the width of the first outer cover is b1=1 / 2b+L6+a, and the width of the first inner cover is b3=1 / 2b+L3+a. Alternatively, when both the first accessory slot and the second accessory slot are provided corresponding to the second outer cover, the width of the second outer cover is b2 = 1 / 2b + L6 + a, and the width of the second inner cover is b4 = 1 / 2b + L3 + a.
8. The packaging structure according to claim 4, characterized in that, The clearance distance of the boundary of the accessory slot is 'a'. The accessory slot includes a first accessory slot and a second accessory slot. Both the first accessory slot and the second accessory slot coincide with the initial mating line. The boundary of the first accessory slot extends beyond the first initial edge by a distance of L3 and extends beyond the initial mating line by a distance of L5. The boundary of the second accessory slot extends beyond the first initial edge by a distance of L4 and extends beyond the initial mating line by a distance of L6, where L4 > L5 > L3 > L6. The width of the first outer flap is b2 = 1 / 2b + L6 + a, and the widths of the first inner flap and the second inner flap are both 1 / 2b + L3 + a.
9. The packaging structure according to any one of claims 2 to 8, characterized in that, The clearance distance at the boundary of the accessory slot is a, where a ≥ 10 mm.
10. The packaging structure according to any one of claims 2 to 8, characterized in that, The packaging box is formed by folding a die-cut piece of cardboard.