Hollowed-out lock catch type packaging box

By setting a perforated hole and a bent snap-fit ​​structure on the second box of the packaging box, the problem of flexibility in removing the inner box of the existing packaging box is solved, and the packaging box can be flexibly pulled out and conveniently used in different environments.

CN223891396UActive Publication Date: 2026-02-10XUCHANG YUTO PRINTING & PACKING
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Patent Information

Application Number
CN202520310068.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-10
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

The existing locking structure between the inner and outer boxes limits the flexibility of the packaging in different usage environments when the user needs to completely remove the inner box.

Method used

A hollowed-out locking packaging box was designed. By setting a second snap-fit ​​structure with hollowed-out holes on the second box body, combined with the bending design of the snap-fit ​​main body and the snap-fit ​​support body, the second box body can be flexibly pulled out under different pulling forces.

Benefits of technology

This design ensures the flexibility and convenience of the packaging box in different usage environments. The second box can be fully pulled out when needed, and the material utilization rate is high, avoiding the use of additional structures.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223891396U_ABST
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Abstract

The hollow lock catch type packaging box comprises a first box body, the first box body comprises a plurality of first side walls, a first containing cavity and a first opening, and the two first side walls are provided with first clamping structures bent towards the interior of the first containing cavity; the second box body goes in and out of the first containing cavity through the first opening, the second box body comprises a plurality of second side walls and a second containing cavity, the two second side walls arranged on the opposite sides are provided with second clamping structures bent outwards, and the two second clamping structures are coupled with the two first clamping structures respectively and can be matched with the two first clamping structures in a clamping mode; the second clamping structure comprises a clamping main body part and at least two clamping supporting parts, the clamping main body part is connected to the second box body in a bent mode, the connecting length of each clamping main body part on the second side wall is smaller than the extending length of the second side wall, and the at least two clamping supporting parts are arranged at the free end of the clamping main body part at intervals. According to the hollowed-out lock catch type packaging box, the use flexibility of the packaging box in different use environments is guaranteed.
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Description

Technical Field

[0001] This application belongs to the field of packaging technology, and in particular relates to a hollowed-out interlocking packaging box. Background Technology

[0002] Among the various types of packaging boxes on the market, sliding or push-type packaging boxes offer high convenience and practicality. These boxes typically consist of an outer box and an inner box. The inner box is installed inside the outer box and can slide within it, allowing users to easily retrieve the items contained within.

[0003] Currently, the inner and outer boxes of packaging boxes are usually secured by latches to prevent the inner box from completely falling out of the outer box during natural sliding. However, when the user needs to completely remove the inner box, the latches restrict the removal of the inner box, affecting the flexibility of the packaging box in different usage environments. Utility Model Content

[0004] This application provides a hollowed-out interlocking packaging box, which ensures the flexibility of the packaging box in different usage environments.

[0005] This application provides a hollowed-out locking packaging box, comprising a first box body, including multiple first sidewalls, a first receiving cavity formed by the multiple first sidewalls, and a first opening communicating with the first receiving cavity. Two first sidewalls located on opposite sides of the first opening each have a first snap-fit ​​structure bent toward the interior of the first receiving cavity. Each first snap-fit ​​structure is located at the end of the corresponding first sidewall at the first opening. A second box body is retractably connected to the first box body and is configured to enter and exit the first receiving cavity through the first opening. The second box body includes multiple second sidewalls and a second receiving cavity formed by the multiple second sidewalls. Among the multiple second sidewalls, two second sidewalls on opposite sides have outwardly bent second snap-fit ​​structures. The two second snap-fit ​​structures are coupled to and can snap-fit ​​with two first snap-fit ​​structures respectively. Each second snap-fit ​​structure includes a snap-fit ​​main body and at least two snap-fit ​​support parts. The snap-fit ​​main body is bent and connected to the second box body, and the connection length of each snap-fit ​​main body on its corresponding second sidewall is less than the extension length of that second sidewall. At least two snap-fit ​​support parts are spaced apart at the free ends of the snap-fit ​​main body.

[0006] In the above-mentioned hollowed-out interlocking packaging box, the connection length of the first snap-fit ​​structure on its corresponding first side wall is less than the extension length of this first side wall.

[0007] The above-mentioned hollowed-out interlocking packaging box has a second box body with a hollowed-out hole opposite to the position of the second snap-fit ​​structure. The second snap-fit ​​structure is formed by hollowing out the second box body at its hollowed-out hole, and the snap-fit ​​main body of the second snap-fit ​​structure is connected to the edge of the hollowed-out hole.

[0008] The above-mentioned hollowed-out interlocking packaging box includes a second box body that also has a second opening and a lid that avoids the second snap-fit ​​structure. The second opening and at least part of the lid are located on the same second side wall, and the lid and the second side wall are tearably connected by a tear line.

[0009] The above-mentioned hollowed-out interlocking packaging box has a third opening in the first box body. The third opening is located on the first side wall opposite to the first opening, and the opening area of ​​the third opening is smaller than the area of ​​the first side wall.

[0010] On the other hand, this application also provides a blank for forming a hollowed-out interlocking packaging box, which includes a first folding structure for forming a first box body and a second folding structure for folding to form a second box body. The first folding structure includes a first main body area, two sets of first encapsulation areas connected to both sides of the first main body area in a first direction, and two first snap-fit ​​structures connected to both sides of the first main body area in a second direction. The second folding structure includes a second main body area, a second encapsulation area disposed around the periphery of the second main body area, and two second snap-fit ​​structures connected to the second main body area.

[0011] The blank used to form a hollowed-out interlocking packaging box, as shown above, includes a first main body area comprising a first folded part and two second folded parts bent and connected to the first folded part on both sides in a second direction. The first folded part has a third opening, and the side of the second folded part away from the first folded part is connected to a first snap-fit ​​structure.

[0012] The blank used to form a hollowed-out interlocking packaging box as described above, wherein the first encapsulation area includes a plurality of adhesive portions arranged along the second direction, and the adhesive portions of each group of the first encapsulation area can be bonded to form a first sidewall perpendicular to the first direction, and the first folding portion and two second folding portions can be folded to form a first sidewall parallel to the first direction.

[0013] The blank used to form a hollowed-out interlocking packaging box, as shown above, includes a second main body area comprising a third fold and two fourth folds bent and connected to the third fold on both sides in the second direction. Each fourth fold is provided with a second snap-fit ​​structure and has a hollowed-out hole.

[0014] The blank used to form the hollowed-out interlocking packaging box as described above, wherein the second folding structure also includes a cover body, the cover body including a first cover body part and a second cover body part that can be bent and connected, the second cover body part being tearably connected to one of the fourth folding parts by a tear line.

[0015] The hollowed-out interlocking packaging box of this application includes a first box body and a second box body. The second box body is pull-out connected to the first opening of the first box body. The first snap-fit ​​structure on the first side wall of the first box body near its first opening can snap-fit ​​with the corresponding second snap-fit ​​structure on the second side wall of the second box body. After the second box body is pulled out from the first opening a certain distance, the first snap-fit ​​structure and the second snap-fit ​​structure complete the snap-fit ​​engagement, thereby forming a blocking effect when the second box body is pulled out from the first receiving cavity.

[0016] The second snap-fit ​​structure includes a snap-fit ​​main body and at least two snap-fit ​​support parts. The connection length of the snap-fit ​​main body is less than the length of the second sidewall it connects to. When the snap-fit ​​main body bends, there is sufficient space on both sides of the snap-fit ​​main body to allow for bending. Furthermore, the at least two snap-fit ​​support parts at the ends of the snap-fit ​​main body are spaced apart, further facilitating bending deformation. The snap-fit ​​main body and snap-fit ​​support parts enable the second snap-fit ​​structure to bend as a whole under significant stress, causing it to detach from the first snap-fit ​​structure. This allows the second box to be completely extracted from the first receiving cavity of the first box, ensuring the flexibility of the perforated locking packaging box under various tensile conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the unfolded state of the hollowed-out interlocking packaging box according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the closed state of the hollowed-out interlocking packaging box according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the first box body of the hollowed-out interlocking packaging box according to an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the second box body of the hollowed-out interlocking packaging box according to an embodiment of this application;

[0022] Figure 5 This is an unfolded view of the first fold structure of the hollowed-out interlocking packaging box according to an embodiment of this application;

[0023] Figure 6 This is an unfolded view of the second fold structure of the hollowed-out interlocking packaging box according to an embodiment of this application.

[0024] Explanation of icon numbers:

[0025] 10. First housing; 11. First sidewall; 12. First receiving cavity; 13. First opening; 14. First folding structure; 141. First main body area; 1411. First folding part; 1412. Second folding part; 142. First encapsulation area; 1421. First adhesive part; 1422. Second adhesive part; 1423. First connecting part; 1424. Second connecting part; 15. First snap-fit ​​structure; 16. Third opening;

[0026] 20. Second housing; 21. Second sidewall; 22. Second receiving cavity; 23. Second snap-fit ​​structure; 231. Snap-fit ​​main body; 232. Snap-fit ​​support; 24. Hole; 25. Second folding structure; 251. Second main body area; 2511. Third fold; 2512. Fourth fold; 252. Second encapsulation area; 2521. Third adhesive part; 2522. Fourth adhesive part; 2523. Fifth adhesive part; 2524. Sixth adhesive part; 26. Second opening; 27. Cover; 271. First cover part; 272. Second cover part; 28. Tear line; 29. ​​Tear opening;

[0027] X, the first direction; Y, the second direction. Detailed Implementation

[0028] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0029] like Figures 1 to 4As shown, this application embodiment provides a hollowed-out interlocking packaging box, which includes a first box body 10, including a plurality of first side walls 11, a first receiving cavity 12 formed by the plurality of first side walls 11, and a first opening 13 communicating with the first receiving cavity 12. Two first side walls 11 located on opposite sides of the first opening 13 each have a first snap-fit ​​structure 15 bent toward the interior of the first receiving cavity 12. Each first snap-fit ​​structure 15 is located at the end of the corresponding first side wall 11 at the first opening 13. A second box body 20 is slidably connected to the first box body 10 and is configured to enter and exit the first receiving cavity 12 through the first opening 13. The second box body 20 includes a plurality of second side walls 2... 1 and a second receiving cavity 22 formed by multiple second sidewalls 21. Among the multiple second sidewalls 21, the two second sidewalls 21 on opposite sides are provided with outwardly bent second snap-fit ​​structures 23. The two second snap-fit ​​structures 23 are coupled to two first snap-fit ​​structures 15 respectively and can snap-fit ​​together. The second snap-fit ​​structure 23 includes a snap-fit ​​main body 231 and at least two snap-fit ​​support parts 232. The snap-fit ​​main body 231 is bent and connected to the second box 20, and the connection length of each snap-fit ​​main body 231 on its corresponding second sidewall is less than the extension length of this second sidewall. At least two snap-fit ​​support parts 232 are spaced apart at the free end of the snap-fit ​​main body 231.

[0030] It should be noted that the bending connection or folding connection in the embodiments of this application refers to two adjacent structures with creases between them. The two structures can be bent at any angle through the creases to meet the shape requirements of the final packaging box.

[0031] In specific implementation, the hollowed-out locking packaging box of this application embodiment includes a first box body 10 and a second box body 20. The second box body 20 is pull-out connected to the first opening 13 of the first box body 10. The first snap-fit ​​structure 15 of the first side wall 11 of the first box body 10 near its first opening 13 can snap-fit ​​with the corresponding second snap-fit ​​structure 23 on the second side wall 21 of the second box body 20. After the second box body 20 is pulled out a certain distance from the first opening 13, the first snap-fit ​​structure 15 and the second snap-fit ​​structure 23 complete the snap-fit ​​engagement, thereby forming a blocking effect when the second box body 20 is pulled out from the first receiving cavity 12.

[0032] The second snap-fit ​​structure 23 includes a snap-fit ​​main body 231 and at least two snap-fit ​​support parts 232. The connection length of the snap-fit ​​main body 231 is less than the length of the second sidewall 21 to which it is connected. When the snap-fit ​​main body 231 is bent, there is sufficient space on both sides of the snap-fit ​​main body 231 to allow for bending. Furthermore, the at least two snap-fit ​​support parts 232 at the ends of the snap-fit ​​main body 231 are spaced apart, which facilitates bending deformation. When the user's pulling force increases, the snap-fit ​​support parts 232 bend first, which in turn causes the snap-fit ​​main body 231 to bend. The spacing between the snap-fit ​​support parts 232 and the two sides of the snap-fit ​​main body 231 both have sufficient bending space, allowing the second snap-fit ​​structure 23 to bend relative to the first snap-fit ​​structure 15, causing the second snap-fit ​​structure 23 to detach from the first snap-fit ​​structure 15.

[0033] Therefore, the snap-fit ​​main body 231 and snap-fit ​​support 232 enable the second snap-fit ​​structure 23 to snap with the first snap-fit ​​structure 15 when the second box 20 does not need to be pulled out from the first box 10, i.e., when the force is small, thus creating a blocking effect on the second box 20. When the second box 20 needs to be completely pulled out from the first box 10, i.e., when the force is large, the second snap-fit ​​structure 23 can be bent as a whole, thereby causing the second snap-fit ​​structure 23 to detach from the first snap-fit ​​structure 15, and the second box 20 can be completely pulled out from the first receiving cavity 12 of the first box 10, ensuring the flexibility of the hollowed-out snap-fit ​​packaging box under different tensile conditions.

[0034] like Figures 1 to 3 As shown in the embodiment of the present application, the hollowed-out locking packaging box has a connection length of the first snap-fit ​​structure 15 on its corresponding first side wall 11 that is less than the extension length of the first side wall 11. This arrangement allows the first snap-fit ​​structure 15 to deform to both sides when subjected to greater force, thereby bending the whole structure and eventually detaching from the second snap-fit ​​structure 23, so that the second box body 20 is completely separated from the first box body 10.

[0035] In specific implementation, the two first snap-fit ​​structures 15 are respectively connected to the two first sidewalls 11 of the first box body 10 perpendicular to the second direction Y. The two first sidewalls 11 perpendicular to the second direction Y have a large overall area and a long extension length in the first direction X. The two second snap-fit ​​structures 23 are respectively connected to the two second sidewalls 21 of the second box body 20 perpendicular to the second direction Y. The two second sidewalls 21 perpendicular to the second direction Y also have a large area and extension length. The positioning of the first snap-fit ​​structures 15 and the second snap-fit ​​structures 23 provides sufficient bending space in the first direction X. The two first sidewalls 11 and the two second sidewalls 21 perpendicular to the first direction X will not obstruct the bending of the first snap-fit ​​structures 15 and the second snap-fit ​​structures 23 from both sides, thereby allowing the second snap-fit ​​structure 23 to detach from the first snap-fit ​​structure 15. The second box body 20 can be completely pulled out from the first receiving cavity 12 of the first box body 10, ensuring the flexibility of the hollowed-out locking packaging box under different tensile conditions.

[0036] like Figure 1 and Figure 4 As shown in the embodiment of this application, the hollowed-out locking packaging box has a second box body 20 with a hollowed-out hole 24 opposite to the position of the second snap-fit ​​structure 23. The second snap-fit ​​structure 23 is formed by hollowing out the second box body 20 at its hollowed-out hole 24, and the snap-fit ​​main body 231 of the second snap-fit ​​structure 23 is connected to the edge of the hollowed-out hole 24.

[0037] In specific implementation, the second snap-fit ​​structure 23 is formed by the second box body 20 through its hollow hole 24. In this way, when designing the second box body 20, there is no need to set an additional structure protruding from the second box body 20 to form the second snap-fit ​​structure 23. The second snap-fit ​​structure 23 is only part of the second side wall 21 of the second box body 20, thereby saving materials.

[0038] The perforated hole 24 provides sufficient bending space for the second snap-fit ​​structure 23, preventing the second snap-fit ​​structure 23 from being blocked by the second side wall 21 it is connected to when bending, thus affecting the second snap-fit ​​structure 23's release from the first snap-fit ​​structure 15 and ensuring the extraction effect of the second box body 20, thereby ensuring the flexibility of the packaging box.

[0039] Furthermore, since the second box 20 is located inside the first box 10, when the second snap-fit ​​structure 23 is bent, a large bending force will occur at the connection point between it and the perforated hole 24. At this time, the inner surface of the first side wall 11 of the first box 10 can support the perforated hole 24, preventing breakage at the edge of the perforated hole 24. Therefore, the perforated holes 24 of the first box 10 and the second box 20 can be used in conjunction to ensure the overall stability of the second box 20 and prevent damage to the second box 20.

[0040] like Figure 4 As shown in the embodiment of this application, the hollowed-out locking packaging box has a second box body 20 that avoids the second snap-fit ​​structure 23, a second opening 26 and a cover 27. The second opening 26 and at least part of the cover 27 are located on the same second side wall 21, and the cover 27 and the second side wall 21 are tearably connected by a tear line 28.

[0041] In practice, the second opening 26 and at least part of the lid 27 are located on the same second sidewall 21. The lid 27 can partially seal this second sidewall 21. Without tearing open the lid 27, the user can directly remove the contents of the second box 20 through the second opening 26. The lid 27 and the second sidewall 21 are tearably connected by a tear line 28. After tearing the lid 27 from the second sidewall 21, the resulting opening can connect with the second opening 26 to form a larger opening, making it easier for the user to remove the contents of the second box 20. The cooperative design of the second opening 26 and the lid 27 enhances the flexibility of the packaging box, allowing the user to change the size of the opening according to their needs.

[0042] Specifically, the cover 27 includes a first cover portion 271 and a second cover portion 272 that are bent and connected. The second cover portion 272 is tearably connected to the second side wall 21, while the first cover portion 271 is bent and connected to the second side wall 21 opposite to the second cover portion 272. The second cover portion 272 has a trapezoidal structure, and the width of the trapezoidal structure decreases in the direction away from the first cover portion 271. This design allows the user to tear the cover from a narrower width, making it easier. Furthermore, the end of the second cover portion 272 away from the first cover portion 271 has a tear opening 29 between it and the second side wall 21. The tear opening 29 allows the user to easily insert their hand and tear the cover 27, reducing the difficulty of tearing the cover 27 and improving the ease of use of the packaging box.

[0043] like Figures 1 to 3 As shown in the embodiment of this application, the hollowed-out locking packaging box has a first box body 10 with a third opening 16. The third opening 16 is opened on a first side wall 11 opposite to the first opening 13, and the opening area of ​​the third opening 16 is smaller than the area of ​​the first side wall 11 on which it is located.

[0044] In practice, the third opening 16 is opened on the first side wall 11 opposite to the first opening 13. When the second box 20 is pulled out, the user can push it outward from the third opening 16 toward the first opening 13 to facilitate the sliding of the second box 20 outward, thereby improving the ease of use of the packaging box.

[0045] The opening area of ​​the third opening 16 is smaller than the area of ​​the first side wall 11 on which it is located. This prevents the second box 20 from sliding out of the third opening 16 and ensures the installation stability of the second box 20 in the first receiving cavity 12.

[0046] like Figure 5 and Figure 6 As shown in the embodiment of this application, a blank for forming a hollowed-out interlocking packaging box is also provided, which includes a first folding structure 14 for forming a first box body 10 and a second folding structure 25 for folding to form a second box body 20. The first folding structure 14 includes a first main body area 141, two sets of first encapsulation areas 142 connected to the first main body area 141 on both sides in the first direction X, and two first snap-fit ​​structures 15 connected to the first main body area 141 on both sides in the second direction Y. The second folding structure 25 includes a second main body area 251, a second encapsulation area 252 disposed around the second main body area 251, and two second snap-fit ​​structures 23 connected to the second main body area 251.

[0047] It should be noted that, in Figure 5 and Figure 6 In the unfolded diagram, the red line segment is the cutting line of the first folding structure 14 and the second folding structure 25. That is, the red cutting line is formed by cutting, and the two parts on both sides of the cutting line are independently set structures, which are separated by the cutting line. The blue line segment is the folding line of the first folding structure 14 and the second folding structure 25. Any two parts of the first folding structure 14 and the second folding structure 25 connected by the blue folding line can be bent along the folding line, so that the first folding structure 14 and the second folding structure 25 can be folded to form the first box 10 and the second box 20.

[0048] After the first box 10 is formed by folding using the first folding structure 14, the first main body area 141 of the first folding structure 14 forms a first sidewall 11 parallel to the first direction X, and the two sets of first encapsulation areas 142 form two first sidewalls 11 perpendicular to the first direction X. The adhesive portions of each set of first encapsulation areas 142 can be bonded to form a first sidewall 11 perpendicular to the first direction X. After the second box 20 is formed by folding using the second folding structure 25, the second main body area 251 of the second folding structure 25 forms a second sidewall 21 parallel to the first direction X. The second encapsulation area 252, which is arranged around and connected to the periphery of the second main body area 251, can make the second box 20 form a closed box.

[0049] Two first snap-fit ​​structures 15 are bent and connected to the first main body area 141 on both sides of the second direction Y. After the first folding structure 14 is folded to form the first box 10, the two first snap-fit ​​structures 15 are spaced apart on different side walls of the first box 10 along the second direction Y. Two second snap-fit ​​structures 23 are bent and connected to the second main body area 251 and are located at the corresponding positions of the two first snap-fit ​​structures 15, so that after the complete first box 10 and second box 20 are formed, the snap-fit ​​cooperation between the first snap-fit ​​structure 15 and the second snap-fit ​​structure 23 is realized.

[0050] like Figure 5 As shown in the embodiment of this application, the blank for forming a hollowed-out interlocking packaging box includes a first main body area 141 comprising a first folded portion 1411 and two second folded portions 1412 bent and connected to the first folded portion 1411 on both sides of the second direction Y. The first folded portion 1411 has a third opening 16, and the side of the second folded portion 1412 away from the first folded portion 1411 is connected to the first snap-fit ​​structure 15.

[0051] In specific implementation, after the first main body area 141 is folded, the two second folding parts 1412 are vertically connected to the first folding part 1411 on both sides of the second direction Y, thereby forming two first sidewalls 11 perpendicular to the second direction Y; the first folding part 1411 is provided with a third opening 16, which is located on opposite sides of the first opening 13 formed by folding, so that the second box 20 can be pushed through the third opening 16, so that the second box 20 can slide out from the first opening 13.

[0052] Furthermore, the side of the second folding part 1412 away from the first folding part 1411 is connected to the first snap-fit ​​structure 15, so that the two first snap-fit ​​structures 15 can be spaced apart at the third opening 16 after the first box body 10 is folded and formed, thereby restricting the second box body 20 at the third opening 16, so that the second box body 20 has sufficient pull-out distance, and the opening area of ​​the second opening 26 is large, so that the user has enough space to take out the contents contained inside from the second opening 26.

[0053] Specifically, the adhesive portion of the first encapsulation area 142 includes a first adhesive portion 1421 and a second adhesive portion 1422. The first adhesive portion 1421 and the second adhesive portion 1422 are respectively vertically connected to two second folded portions 1412. The first adhesive portion 1421 also includes a first connecting portion 1423 connected to each other and a second connecting portion 1424 connected to the second folded portion 1412. The first connecting portion 1423 is positioned opposite to one of the second folded portions 1412 and is bent and connected. The second connecting portion 1424 is positioned opposite to the first folded portion 1411 but the two are not connected.

[0054] After the first box body 10 is formed by bonding, the second connecting part 1424 and the second bonding part 1422 can be stacked on one side of the first main body area 141 and bonded together, and the first connecting part 1423 can be bonded to the first folding part 1411.

[0055] like Figure 6 As shown in the embodiment of this application, the blank for forming a hollowed-out interlocking packaging box includes a second main body area 251 comprising a third folded portion 2511 and two fourth folded portions 2512 bent and connected to the third folded portion 2511 on both sides of the second direction Y. Each fourth folded portion 2512 is provided with a second snap-fit ​​structure 23 and has a hollowed-out hole 24. The hollowed-out hole 24 is opened on the side of the fourth folded portion 2512 near the third folded portion 2511.

[0056] In specific implementation, after the second main body area 251 is folded, two fourth folding parts 2512 are vertically connected to the third folding part 2511 on both sides of the second direction Y. The second snap-fit ​​structure 23 and the hollow hole 24 of each fourth folding part 2512 are close to the connection between the fourth folding part 2512 and the third folding part 2511, so that the second snap-fit ​​structure 23 and the first snap-fit ​​structure 15 provided at the first opening 13 of the first box body 10 are positioned opposite each other and can be snap-fitted together.

[0057] Wherein, along the first direction X, the extension length of the first snap-fit ​​structure 15 is less than the extension length of the second folding portion 1412, and the extension length of the second snap-fit ​​structure 23 is less than the extension length of the fourth folding portion 2512, so that when the first snap-fit ​​structure 15 and the second snap-fit ​​structure 23 are bent, there is sufficient space on both sides in the first direction X, so that the two can be completely bent, so that the second snap-fit ​​structure 23 can be disengaged from the first snap-fit ​​structure 15.

[0058] Specifically, the second folding structure 25 also includes a cover 27, the second cover portion 272 of which is tearably connected to one of the fourth folding portions 2512 via a tear line 28.

[0059] In this embodiment, the second encapsulation area 252 includes two third adhesive portions 2521, a fourth adhesive portion 2522, a fifth adhesive portion 2523, and a sixth adhesive portion 2524. The two third adhesive portions 2521 are bent and connected to the two fourth fold portions 2512 respectively. The fourth adhesive portions 2522 and the cover 27 are disposed on the first side of the second main body area 251 in the first direction X, and the fourth adhesive portions 2522 and the cover 27 are respectively connected to the two fourth fold portions 2512. The fourth adhesive portions 2522 and the cover 27 extend in the first direction X. The lengths of each part are less than the extension length of their respective fourth folds 2512 in the first direction X, so that a second opening 26 can be formed on one side of the second box 20; the fifth adhesive part 2523 and the sixth adhesive part 2524 are provided on the second side of the second main body area 251 in the first direction X. The fifth adhesive part 2523 is connected to the cover 27 via the same fourth fold 2512. The sixth adhesive part 2524 includes three sub-adhesive parts, which are sequentially connected to the third adhesive part 2521, the fourth fold 2512 and the third fold 2511.

[0060] After the second box body 20 is folded and glued, two third adhesive parts 2521 are stacked on the opposite side of the third folded part 2511; the first cover part 271 and the second opening 26 are provided on the second side wall 21 perpendicular to the first direction X, and the second cover part 272 is tearably connected to the fourth folded part 2512, so as to facilitate tearing to form a larger opening; the three sub-adhesive parts of the sixth adhesive part 2524 can form a co-layer structure and are arranged to avoid each other, and all three are glued to the fifth adhesive part 2523, thereby forming the second side wall 21 perpendicular to the first direction X, so that the third adhesive part 2521, the fourth folded part 2512 and the third folded part 2511 connected to the three sub-adhesive parts have the same fixed base, so that the second box body 20 has higher stability.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0062] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A perforated interlocking packaging box, characterized in that, include: The first box body (10) includes a plurality of first sidewalls (11), a first receiving cavity (12) formed by the plurality of first sidewalls (11), and a first opening (13) communicating with the first receiving cavity (12). The two first sidewalls (11) located on opposite sides of the first opening (13) each have a first snap-fit ​​structure (15) bent toward the inside of the first receiving cavity (12). Each first snap-fit ​​structure (15) is provided at the end of the corresponding first sidewall (11) located at the first opening (13). The second box (20) is retractably connected to the first box (10) and enters and exits the first receiving cavity (12) through the first opening (13). The second box (20) includes multiple second sidewalls (21) and a second receiving cavity (22) formed by the multiple second sidewalls (21). Among the multiple second sidewalls (21), the two second sidewalls (21) on opposite sides are provided with outwardly bent second snap-fit ​​structures (23). The two second snap-fit ​​structures (23) are respectively connected to the two receiving cavities (12). The first snap-fit ​​structure (15) is coupled and can snap-fit ​​together. The second snap-fit ​​structure (23) includes a snap-fit ​​main body (231) and at least two snap-fit ​​support parts (232). The snap-fit ​​main body (231) is bent and connected to the second box body (20). The connection length of each snap-fit ​​main body (231) on its corresponding second side wall is less than the extension length of the second side wall. The at least two snap-fit ​​support parts (232) are spaced apart at the free end of the snap-fit ​​main body (231).

2. The hollowed-out interlocking packaging box according to claim 1, characterized in that, The connection length of the first snap-fit ​​structure (15) on its corresponding first sidewall (11) is less than the extension length of the first sidewall (11).

3. The hollowed-out interlocking packaging box according to claim 1, characterized in that, The second box body (20) has a hollow hole (24) opposite to the position of the second snap-fit ​​structure (23). The second snap-fit ​​structure (23) is formed by hollowing out the second box body (20) at the hollow hole (24). The snap-fit ​​main body (231) of the second snap-fit ​​structure (23) is connected to the edge of the hollow hole (24).

4. The hollowed-out interlocking packaging box according to claim 3, characterized in that, The second box body (20) also has a second opening (26) and a cover (27) that avoid the second snap-fit ​​structure (23), the second opening (26) and at least part of the cover (27) being disposed on the same second sidewall (21), the cover (27) and the second sidewall (21) being tearably connected by a tear line (28).

5. The hollowed-out interlocking packaging box according to claim 1, characterized in that, The first box body (10) also has a third opening (16), which is opened on the first side wall (11) opposite to the first opening (13), and the opening area of ​​the third opening (16) is smaller than the area of ​​the first side wall (11) where it is located.

6. A blank for forming a perforated interlocking packaging box, characterized in that, The first folding structure (14) is used to form a first box body (10) and a second folding structure (25) is used to fold to form a second box body (20). The first folding structure (14) includes a first main body area (141), two sets of first encapsulation areas (142) connected to the first main body area (141) on both sides in a first direction (X) and two first snap-fit ​​structures (15) connected to the first main body area (141) on both sides in a second direction (Y). The second folding structure (25) includes a second main body area (251), a second encapsulation area (252) disposed around the second main body area (251) and two second snap-fit ​​structures (23) connected to the second main body area (251).

7. The blank for forming a hollow interlocking packaging box according to claim 6, characterized in that, The first main body area (141) includes a first folded portion (1411) and two second folded portions (1412) bent and connected to the first folded portion (1411) on both sides of the second direction (Y). The first folded portion (1411) has a third opening (16), and the side of the second folded portion (1412) away from the first folded portion (1411) is connected to the first snap-fit ​​structure (15).

8. The blank for forming a hollow interlocking packaging box according to claim 7, characterized in that, The first encapsulation area (142) includes a plurality of adhesive portions arranged along the second direction (Y). The adhesive portions of each group of the first encapsulation areas (142) can be bonded to form a first sidewall (11) perpendicular to the first direction (X). The first folding portion (1411) and the two second folding portions (1412) can be folded to form a first sidewall (11) parallel to the first direction (X).

9. The blank for forming a hollow interlocking packaging box according to claim 6, characterized in that, The second main body area (251) includes a third fold (2511) and two fourth folds (2512) that are bent and connected to the third fold (2511) on both sides of the second direction (Y). Each of the fourth folds (2512) is provided with the second snap-fit ​​structure (23) and has a hollow hole (24).

10. The blank for forming a perforated interlocking packaging box according to claim 9, characterized in that, The second folding structure (25) further includes a cover (27), which includes a first cover portion (271) and a second cover portion (272) that can be bent and connected. The second cover portion (272) is tearably connected to one of the fourth folding portions (2512) by a tear line (28).