Split type packaging box with plug-in fixing structure

Abstract

The utility model relates to packing box technical field more specifically relates to a kind of split type packing box with plug buckle type fixing structure.Packing box includes two side plate profiles, plug buckle type fixing structure and bottom plate engaging structure, and each side plate profile includes integrally formed and is connected by the first side plate, second side plate and triangular bottom plate of the adjacent side at right angles setting;Plug buckle type fixing structure includes the first engaging portion of being located at the first side plate and the second engaging portion of being located on the second side plate;Bottom plate engaging structure includes the upper inclined edge portion of being located on the half bevel of triangular bottom plate and the inner surface of triangular bottom plate coplanar and the lower inclined edge portion of being located on the other half bevel of triangular bottom plate and the outer surface of triangular bottom plate coplanar.The split type packing box provided by the utility model is set by plug buckle type fixing structure and bottom plate engaging structure, and the interlocking of the upper inclined edge portion and the lower inclined edge portion of bottom plate, the limiting of plug buckle is realized, and the stability and bearing capacity of packing box are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and more specifically to a split packaging box with a snap-lock fixing structure. Background Technology

[0002] Packaging boxes made by foaming and molding plant fibers have the advantages of being virtually environmentally friendly, having a simple manufacturing process, low cost, wide availability of raw materials, and excellent shock absorption and vibration isolation performance.

[0003] Generally, packaging boxes made from plant fiber foam molding are made from plant fibers and additives such as starch. For example, patent document CN 101337374 B discloses a "method for manufacturing pure plant fiber expanded foam packaging material." When manufacturing the profiles, only the mold shape needs to be adjusted as required.

[0004] While this type of material is highly suitable for packaging, effectively solving the problems of high packaging costs and environmental pollution associated with paper, wood, and plastic packaging, directly molding the boxes results in larger spare boxes, which is not conducive to the storage and transportation of empty boxes. Furthermore, its material differs from cardboard, making it unsuitable for folding empty boxes for spare use.

[0005] Therefore, it is urgent to propose a new technical solution to address the problem. Utility Model Content

[0006] (a) Technical problems to be solved Based on this, the present invention provides a split packaging box with a snap-lock fixing structure, which is simple and reliable to lock and easy to assemble.

[0007] (II) Technical Solution To solve the above-mentioned technical problems, this utility model provides a split-type packaging box with a snap-fit ​​fixing structure. The split-type packaging box includes two side panel profiles. Each side panel profile includes a first side panel, a second side panel, and a triangular base plate, all integrally formed and connected at right angles to adjacent sides. The adjacent sides are fixed edges, with the first side panel extending in a first direction and the second side panel extending in a second direction. The split-type packaging box also includes a snap-fit ​​fixing structure and a base plate locking structure. The snap-fit ​​fixing structure includes a first locking portion on the first free side of the first side panel and a second locking portion protruding in the second direction on the second free side of the second side panel. The first engaging portion includes a first engaging edge portion protruding in the first direction on a first free side of the first side plate and a first engaging head portion extending in the second direction at the end of the first engaging edge portion; the second engaging portion includes an inner side surface and an outer side surface opposite to each other in the first direction, and a slot is provided on the inner side surface to cooperate with the first engaging portion; wherein, the two side plate profiles are spliced ​​together by engaging the first engaging portion and the slot to form a side panel of a packaging box; the bottom plate engaging structure includes an upper oblique engaging edge portion coplanar with the inner surface of the triangular bottom plate on one half of the oblique side and a lower oblique engaging edge portion coplanar with the outer surface of the triangular bottom plate on the other half of the oblique side.

[0008] Preferably, the upper inclined edge portion and the lower inclined edge portion have the same length along the inclined side of the triangular base plate, and each occupies half the length of the inclined side of the triangular base plate.

[0009] Preferably, the edge of the triangular base plate adjacent to the outer surface of the first side plate is a strand edge, and the edge adjacent to the outer surface of the second side plate is a hook edge; a triangular notch is formed at the junction of the strand edge and the hypotenuse of the triangular base plate, the hypotenuse of the notch coincides with the hypotenuse of the triangular base plate, the vertex of the notch coincides with the endpoint of the strand edge, the height of the notch is greater than the thickness of the first side plate, and the long side of the notch coincides with the strand edge; a triangular protrusion coplanar with the triangular base plate is formed at the junction of the hook edge and the hypotenuse of the triangular base plate, the hypotenuse of the protrusion coincides with the hypotenuse of the triangular base plate, the vertex of the protrusion coincides with the endpoint of the hook edge, the height of the protrusion is greater than the thickness of the second side plate, and the long side of the protrusion coincides with the strand edge.

[0010] Preferably, the notch is located on the upper half of the inclined side of the triangular base plate near the upper inclined edge, and the protrusion is located on the lower half of the inclined side of the triangular base plate near the lower inclined edge.

[0011] Preferably, the upper inclined retaining edge is an upper inclined retaining edge that protrudes from the inclined side of the triangular base plate and is coplanar with the outer surface of the triangular base plate. The outer surface of the upper inclined retaining edge is higher than the outer surface of the inclined side of the triangular base plate, and an inner step is formed on the outer surface of the upper inclined retaining edge and the triangular base plate. The thickness of the inner step on the outer surface of the triangular base plate is the same as that of the lower inclined retaining edge. The lower inclined retaining edge is a lower inclined retaining edge that protrudes from the inclined side of the triangular base plate and is coplanar with the inner surface of the triangular base plate. The inner surface of the lower inclined retaining edge is higher than the inner surface of the inclined side of the triangular base plate, and an outer step is formed on the inner surface of the lower inclined retaining edge and the triangular base plate. The thickness of the outer step on the inner surface of the triangular base plate is the same as that of the upper inclined retaining edge.

[0012] Preferably, the card slot includes a strip-shaped groove located near the inner side of the second engaging portion that mates with the first card edge portion, and a fixing groove located at the bottom of the strip-shaped groove that mates with the first card head.

[0013] Preferably, the outer surface of the second engaging portion is coplanar with the outer surface of the second side plate, and the thickness of the second engaging portion in the second direction is greater than the thickness of the first side plate; the inner surface of the second engaging portion is coplanar with the inner surface of the second side plate, and the thickness of the second engaging portion in the first direction is greater than the thickness of the second side plate.

[0014] Preferably, the outer surface of the first card edge portion is lower than the outer surface of the first side plate, and a step is formed on the outer surface of the first card edge portion and the outer surface of the first side plate, wherein the thickness of the step in the direction perpendicular to the plane of the first side plate is the same as the thickness of the strip groove in the first direction.

[0015] Preferably, the length of the first card edge portion is the same as the length of the first card head portion, and the length of the first card edge portion is the same as the length of the first free side of the first side plate; the length of the second engaging portion is the same as the length of the card slot, and the length of the second engaging portion is the same as the length of the second free side of the second side plate.

[0016] Preferably, the packaging box further includes a cover profile, which covers the top and / or bottom of the side panel of the packaging box.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention has at least the following technical effects: 1. The modular packaging box provided by this utility model achieves rapid assembly and disassembly of the packaging box through the synergistic effect of the snap-fit ​​fixing structure and the bottom plate snap-fit ​​structure.

[0018] 2. The snap-fit ​​fastening structure provided by this utility model uses the first engaging part on the first free side of the first side plate and the slot on the second engaging part on the second free side of the second side plate to cooperate with each other, so that the two side plate profiles can be quickly spliced ​​without tools, which greatly improves the assembly efficiency of the packaging box.

[0019] 3. The bottom plate interlocking structure provided by this utility model interlocks with the upper inclined edge and the lower inclined edge of the triangular bottom plate after splicing, thereby limiting the position of the snap-fit ​​fixed structure and enhancing the stability and load-bearing capacity of the bottom of the packaging box.

[0020] 4. The modular packaging box provided by this utility model has a simple and reliable overall structure, which facilitates warehousing, transportation and reuse, and effectively reduces packaging costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a structural schematic diagram of a packaging box provided by this utility model; Figure 2 This is a schematic diagram of another embodiment of the packaging box provided by this utility model; Figure 3 yes Figure 1 Exploded view of the packaging box provided by this utility model; Figure 4 yes Figure 2 An exploded view of the packaging box provided by this utility model; Figure 5 yes Figure 3 A first-view structural schematic diagram of the side panel profile of the medium-sized packaging box; Figure 6 yes Figure 3 A structural schematic diagram of the middle side panel profile from a second perspective; Figure 7 yes Figure 3 A third-view structural schematic diagram of the middle side panel profile; Figure 8 yes Figure 4 A first-view structural schematic diagram of the side panel profile of the medium-sized packaging box; Figure 9 yes Figure 4 A structural schematic diagram of the middle side panel profile from a second perspective; Figure 10 yes Figure 4 A third-view structural schematic diagram of the middle side panel profile; Figure 11 yes Figure 5 A magnified view of part A of the middle side panel profile; Figure 12 yes Figure 6 A magnified view of section B on the middle side panel profile; Figure 13 yes Figure 8 A magnified view of section C of the middle side panel profile; Figure 14 yes Figure 9 A magnified view of part D of the middle side panel profile; Figure 15 This is a schematic diagram of the structure of the side panel of the packaging box provided by this utility model; Figure 16 yes Figure 15 A magnified view of section E on the side panel of the inner packaging box; Figure 17 This is a schematic diagram of another embodiment of the packaging box side panel provided by this utility model; Figure 18 yes Figure 17 A magnified view of section F on the side panel of the inner packaging box; Figure 19 This is a bottom view of the packaging box provided by this utility model; Figure 20 This is a bottom view of another embodiment of the packaging box provided by this utility model; Figure 21 This is a schematic diagram of the structure of the triangular base plate provided by this utility model; Figure 22 This is a structural schematic diagram of the cover plate profile provided by this utility model; Figure 23 This is a structural schematic diagram of another embodiment of the cover plate profile provided by this utility model.

[0022] Explanation of the labels for the main components in the diagram: 100. Packaging box; 200. Side panel profile; 300. Snap-on fixing structure; 400. Side panel of packaging box; 10. First side plate; 11. First free side; 12. First engaging part; 1211, 1212. First engaging edge; 1221, 1222. First engaging head; 20. Second side plate; 21. Second free side; 22. Second engaging part; 221. Inner surface; 222. Outer surface; 23. Slot; 231. Strip groove; 232. Fixing groove; 30. Triangular base plate; 31. Straight edge; 32. Hook edge; 33. Beveled edge; 34. Notch; 35. Engraved edge; 36. Upper beveled edge; 37. Lower beveled edge; 40. Cover plate profile; 41. Top cover; 42. Third locking part; 50. Fixed edge; 60. Fourth locking part. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings; many specific details are set forth in the following description in order to provide a full understanding of this utility model; based on the embodiments of this utility model, those skilled in the art can make similar improvements without departing from the spirit of this utility model, but cannot make all other embodiments obtained without creative effort, therefore this utility model is not limited to the specific embodiments disclosed below.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please see Figures 1 to 23 To address the problems of large packaging box volume, inconvenience in empty box storage and transportation, and low reusability, this utility model provides a packaging box 100 and its split packaging profile bottom plate locking structure 300. The packaging box 100 includes two side plate profiles 200. Each side plate profile 200 includes a first side plate 10 and a second side plate 20 integrally formed and connected at right angles through adjacent sides. The adjacent sides are fixed edges 50. The first side plate 10 extends in a first direction of the fixed edge 50, and the second side plate 20 extends in a second direction of the fixed edge 50.

[0026] Furthermore, the split packaging box 100 also includes a snap-fit ​​fixing structure 300 and a bottom plate locking structure (not shown in the figure).

[0027] Furthermore, the snap-fit ​​fixing structure 300 includes a first engaging portion 12, which protrudes in a first direction and is coplanar with the inner surface of the first side plate 10, and a second engaging portion 22, which protrudes in a second direction, on the first free side 11 of the first side plate 10; the first engaging portion 12 includes a first locking edge portion 121, which protrudes in a first direction and is coplanar with the inner surface of the first side plate 10, and a first locking head portion 122, which extends in a second direction from the end of the first locking edge portion 121; the second engaging portion 22 includes an inner side surface 221 and an outer side surface 222 opposite to each other in the first direction, and a locking groove 23 that cooperates with the first engaging portion 12 is provided on the inner side surface 221; wherein, the two side plate profiles 200 are spliced ​​together by engaging the first engaging portion 12 and the locking groove 23 to form a packaging box side panel 400.

[0028] Specifically, during assembly, the first engaging part 12 of one side panel profile 200 is aligned with the slot 23 of the other side panel profile 200, and pushed along its height direction so that the first engaging part 12 is engaged into the slot 23, thus completing the engagement and splicing of the two side panel profiles 200.

[0029] Furthermore, the base plate engaging structure includes an upper inclined engagement edge 36 located on one half of the inclined side of the triangular base plate 30 and coplanar with the inner surface of the triangular base plate 30, and a lower inclined engagement edge 37 located on the other half of the inclined side of the triangular base plate 30 and coplanar with the outer surface of the triangular base plate 30.

[0030] Specifically, after the two side panel profiles 200 are snapped together, the upper inclined snap edge 36 on the hypotenuse of the triangular base plate 30 and the lower inclined snap edge 37 on the hypotenuse of the triangular base plate 30 interlock, thereby limiting the snap-fit ​​fixed structure 300 and enhancing the stability and load-bearing capacity of the bottom of the packaging box 100.

[0031] The modular packaging box 100 provided by this utility model has a simple and reliable interlocking structure, is easy to assemble, and requires no additional tools. It effectively improves the assembly efficiency and reusability of the packaging box 100 and reduces packaging costs. Furthermore, its modular packaging profiles can be stacked and stored when not assembled, occupying little space, which facilitates the storage and transportation of empty packaging boxes 100.

[0032] The bottom plate interlocking structure provided by this utility model forms an interlocking structure through the upper inclined locking edge 36 on the hypotenuse of the triangular bottom plate 30 and the lower inclined locking edge 37 on the hypotenuse of the triangular bottom plate 30 after splicing, which enhances the stability and load-bearing capacity of the bottom of the packaging box 100.

[0033] It is understood that the term "integrated molding" in this embodiment can refer to a plastic structure integrally molded by injection molding; a material integrally molded by casting; or a structure integrally molded after curing a foamed material.

[0034] Preferably, in this embodiment, the structure can be integrally formed by thermoforming and foaming with organic fibers and starch-based adhesives, supplemented with inorganic fillers, release agents and other materials.

[0035] It should be noted that, Figure 6 , Figure 9 , Figure 12 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 and Figure 20 The red auxiliary line (which only serves as an indicator in the diagram) marks the first free side 11. Figure 7 , Figure 10 , Figure 17 , Figure 18 , Figure 19 and Figure 20 The yellow auxiliary line (which only serves as an indicator in the diagram) marks the second free side 21. Figure 19 and Figure 20 The green auxiliary lines (which only serve as indicators in the diagram) are marked as the notch 34 and the protrusion 35 on the triangular base plate 30.

[0036] In one embodiment, the upper inclined clamping edge 36 and the lower inclined clamping edge 37 have the same length along the inclined side direction of the triangular base plate 30, and each occupies half the length of the inclined side 33 of the triangular base plate 30, so as to ensure that the two side plate profiles 200 are subjected to more uniform force when spliced, thereby ensuring their balance and stability when engaged.

[0037] In one embodiment, the edge adjacent to the outer surface of the triangular base plate 30 and the first side plate 10 is the rib edge 31, and the edge adjacent to the outer surface of the triangular base plate 30 and the second side plate 20 is the hook edge 32.

[0038] Furthermore, a triangular notch 34 is formed at the intersection of the side edge 31 and the hypotenuse 33 of the triangular base plate 30. The hypotenuse of the notch 34 coincides with the hypotenuse 33 of the triangular base plate 30, the vertex of the notch 34 coincides with the endpoint of the side edge 31, the height of the notch 34 is greater than the thickness of the first side plate 10, and the long side of the notch 34 coincides with the side edge 31. At the intersection of the hook edge 32 and the hypotenuse 33 of the triangular base plate 30, a triangular protrusion 35 coplanar with the triangular base plate 30 is formed. The hypotenuse of the protrusion 35 coincides with the hypotenuse 33 of the triangular base plate 30, the vertex of the protrusion 35 coincides with the endpoint of the hook edge 32, the height of the protrusion 35 is greater than the thickness of the second side plate 20, and the long side of the protrusion 35 coincides with the side edge 31, thereby achieving a stable connection when the triangular base plate 30 is spliced ​​with the first side plate 10 and the second side plate 20.

[0039] The notch 34 is located on the upper half of the inclined side of the triangular base plate 30, near the upper inclined edge 36, and the protrusion 35 is located on the lower half of the inclined side of the triangular base plate 30, near the lower inclined edge 37.

[0040] Furthermore, the upper inclined flange 36 is an upper inclined flange (not shown) that protrudes from the inclined side 33 of the triangular base plate 30 and is coplanar with the outer surface of the triangular base plate 30. The outer surface of the upper inclined flange is higher than the outer surface of the inclined side of the triangular base plate 30, and an inner step (not shown) is formed on the upper inclined flange and the outer surface of the triangular base plate 30. The thickness of the inner step on the outer surface of the triangular base plate 30 is the same as that of the lower inclined flange 37. The lower inclined flange 37 is a lower inclined flange (not shown) that protrudes from the inclined side 33 of the triangular base plate 30 and is coplanar with the inner surface of the triangular base plate 30. The inner surface of the lower inclined flange is higher than the inner surface of the inclined side of the triangular base plate 30, and an outer step (not shown) is formed on the lower inclined flange and the inner surface of the triangular base plate 30. The thickness of the outer step on the inner surface of the triangular base plate 30 is the same as that of the upper inclined flange.

[0041] Specifically, when the two side panel profiles 200 are spliced, the inner step of one side panel profile 200 engages with the outer step of the other side panel profile 200, and the outer step of one side panel profile 200 engages with the inner step of the other side panel profile 200. Since the thickness of the inner step on the outer surface of the triangular base plate 30 is the same as the thickness of the upper edge, and the thickness of the outer step on the inner surface of the triangular base plate 30 is the same as the thickness of the lower edge, a tight engagement between the upper and lower edges is achieved, thereby ensuring the stability of the splicing and engagement of the two side panel profiles 200.

[0042] In one embodiment, the card slot 12 includes a strip groove 231 located on the inner side 221 near the second engaging portion 22 that engages with the first card edge portion 121, and a fixing groove 232 located at the bottom of the strip groove 231 that engages with the first card head 122.

[0043] Specifically, when engaged, the first locking edge 121 is inserted into the strip groove 231, and the first locking head 122 is engaged into the locking groove 232, forming an interlock to prevent the side panel profile 200 from detaching.

[0044] Furthermore, the outer surface 222 of the second engaging portion 22 is coplanar with the outer surface of the second side plate 20, and the thickness of the second engaging portion 22 in the second direction is greater than the thickness of the first side plate 10; the inner surface 221 of the second engaging portion 22 is coplanar with the inner surface of the second side plate 20, and the thickness of the second engaging portion 22 in the first direction is greater than the thickness of the second side plate 20, thereby ensuring the stability and sealing of the two side plate profiles 200 when engaged, enhancing the strength and durability of the second engaging portion 22, and improving the overall stability of the packaging box 100.

[0045] In one embodiment, the outer surface of the first retaining edge 121 is lower than the outer surface of the first side plate 10, and a step (not shown) is formed on the outer surface of the first retaining edge 121 and the outer surface of the first side plate 10. The thickness of the step in the direction perpendicular to the plane of the first side plate 10 is the same as the thickness of the strip groove 231 in the first direction.

[0046] Specifically, the thickness of the step perpendicular to the plane of the first side plate 10 is the same as the thickness of the strip groove 231 in the first direction, so that the first locking edge 121 can be accurately inserted into the strip groove 231 and avoid loosening.

[0047] Furthermore, the length of the first card edge portion 121 is the same as the length of the first card head portion 122, and the length of the first card edge portion 121 is the same as the length of the first free side portion 11; the length of the second engaging portion 22 is the same as the length of the card slot 23, and the length of the second engaging portion 22 is the same as the length of the second free side portion 21, thereby ensuring full contact during engagement and improving connection strength.

[0048] Please see Figures 11 to 12 and Figures 15 to 16 In one embodiment, the first engaging part 12 is a convex 7-shaped engaging part, and the fixing groove 232 formed on the inner side surface 221 of the second engaging part 22 is a concave 7-shaped groove; wherein, the two side panel profiles 200 are joined together by the convex 7-shaped engaging part and the concave 7-shaped groove to form the side panel 400 of the packaging box.

[0049] Further, please refer to Figures 13 to 14 and Figures 17 to 18 The first engaging part 12 can also be a convex spherical engaging part, and the fixing groove 232 formed on the inner side surface 221 of the second engaging part 22 is a concave spherical groove; wherein, the two side plate profiles 200 are spliced ​​together by engaging the convex spherical engaging part and the concave spherical groove to form the side panel 400 of the packaging box.

[0050] Please see Figures 22 to 23In one embodiment, the packaging box 100 further includes a cover profile 40, which includes a top cover 41. The top cover 41 is provided with a third engaging structure 42. The top of the packaging box side panel 400 is provided with a fourth engaging structure 60 that cooperates with the third engaging structure 42. The third engaging structure 42 on the top cover 41 engages with the fourth engaging structure 60 on the top of the packaging box side panel 400, thereby enabling the cover profile 40 to engage with the two side panel profiles 200 and splice together to form the top of the packaging box side panel 400.

[0051] By engaging the third engaging structure 42 on the top cover 41 with the fourth engaging structure 60 on the top of the side panel 400 of the packaging box, the cover profile 40 is securely engaged with the top of the side panel 400 of the packaging box formed by splicing the two side panel profiles 200, thereby achieving the closure of the packaging box 100.

[0052] It should be noted that in this embodiment, the top cover 41 is the cover body 40 itself, and the bottom of the side panel 400 of the packaging box is spliced ​​together by two triangular base plates 30, thereby achieving a seal on the bottom surface of the side panel 400 of the packaging box.

[0053] Preferably, in other specific embodiments, the side panel profile 200 does not have a formed triangular base plate 30; the cover profile 40 includes a top cover 41 and a bottom cover (not shown in the figure), the top cover 41 is placed on the top of the side panel 400 of the packaging box, and the bottom cover is placed on the bottom of the side panel 400 of the packaging box. The double cover design of the top cover 41 and the bottom cover provides a complete closed space for the split packaging box 100.

[0054] In one embodiment, the packaging box 100 includes two side panel profiles 200 and a cover profile 40. Specifically, the two side panel profiles 200 are spliced ​​together by a bottom plate engaging structure 300 to form a packaging box side panel 400. The triangular bottom plate 30 is connected to the bottom of the packaging box side panel 400 by an engaging structure on the inclined side 33. The cover profile 40 is placed on the top of the packaging box side panel 400, thereby forming a complete packaging box 100. The split packaging box 100 has a stable overall structure and is easy to disassemble and reuse.

[0055] Compared with the prior art, the present invention has at least the following technical effects: 1. The modular packaging box 100 provided by this utility model achieves rapid assembly and disassembly through the synergistic effect of the snap-fit ​​fixing structure 300 and the bottom plate locking structure.

[0056] 2. The snap-fit ​​fastening structure 300 provided by this utility model uses the first engaging part 12 on the first free side 11 of the first side plate 10 and the slot 23 on the second engaging part 22 on the second free side 21 of the second side plate 20 to cooperate with each other, so that the two side plate profiles 200 can be quickly spliced ​​without tools, which greatly improves the assembly efficiency of the packaging box 100.

[0057] 3. The bottom plate interlocking structure provided by this utility model interlocks with the upper inclined locking edge 36 and the lower inclined locking edge 37 on the hypotenuse of the triangular bottom plate 30 after splicing, thereby limiting the position of the snap-fit ​​fixed structure 300 and enhancing the stability and load-bearing capacity of the bottom of the packaging box 100.

[0058] 4. The modular packaging box 100 provided by this utility model has a simple and reliable overall structure, which facilitates warehousing, transportation and reuse, and effectively reduces packaging costs.

[0059] Obviously, the above embodiments are merely examples for the detailed description of this utility model, and are not intended to limit the implementation. This utility model can be implemented in many other ways different from those described herein. Although the embodiments of this utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make other modifications and variations based on the above description, and such modifications and variations still fall within the protection scope defined by the appended claims.

Claims

1. A split-type packaging box with a snap-fit ​​fixing structure, the split-type packaging box comprising two side panel profiles, each side panel profile comprising an integrally formed first side panel, a second side panel, and a triangular base plate connected at right angles by adjacent side edges; the adjacent side edges are fixed edges, the first side panel extending in a first direction of the fixed edges is the first side panel, and the second side panel extending in a second direction of the fixed edges is the second side panel; characterized in that, The modular packaging box also includes a snap-fit ​​fixing structure and a bottom plate locking structure; wherein... The snap-fit ​​fixing structure includes a first engaging portion on the first free side of the first side plate and a second engaging portion on the second free side of the second side plate protruding in the second direction; wherein, the first engaging portion includes a first locking edge portion on the first free side of the first side plate, protruding in the first direction and coplanar with the inner surface of the first side plate, and a first locking head portion extending in the second direction at the end of the first locking edge portion; the second engaging portion includes an inner side surface and an outer side surface opposite to each other in the first direction, and a locking groove is formed on the inner side surface to cooperate with the first engaging portion; wherein, the two side plate profiles are spliced ​​together by engaging the first engaging portion and the locking groove to form a packaging box side panel; The base plate engaging structure includes an upper inclined engagement edge portion located on one half of the inclined side of the triangular base plate and coplanar with the inner surface of the triangular base plate, and a lower inclined engagement edge portion located on the other half of the inclined side of the triangular base plate and coplanar with the outer surface of the triangular base plate.

2. The split-type packaging box according to claim 1, characterized in that, The upper inclined edge portion and the lower inclined edge portion have the same length along the inclined side of the triangular base plate, and each occupies half the length of the inclined side of the triangular base plate.

3. The split-type packaging box according to claim 2, characterized in that, The edge of the triangular base plate adjacent to the outer surface of the first side plate is called the "strap edge," and the edge adjacent to the outer surface of the second side plate is called the "hook edge." A triangular notch is formed at the junction of the strap edge and the hypotenuse of the triangular base plate. The hypotenuse of the notch coincides with the hypotenuse of the triangular base plate, the vertex of the notch coincides with the endpoint of the strap edge, the height of the notch is greater than the thickness of the first side plate, and the long side of the notch coincides with the strap edge. A triangular protrusion coplanar with the triangular base plate is formed at the junction of the hook edge and the hypotenuse of the triangular base plate. The hypotenuse of the protrusion coincides with the hypotenuse of the triangular base plate, the vertex of the protrusion coincides with the endpoint of the hook edge, the height of the protrusion is greater than the thickness of the second side plate, and the long side of the protrusion coincides with the strap edge.

4. The split-type packaging box according to claim 3, characterized in that, The notch is located on the upper half of the inclined side of the triangular base plate near the upper inclined edge, and the protrusion is located on the lower half of the inclined side of the triangular base plate near the lower inclined edge.

5. The split-type packaging box according to claim 4, characterized in that, The upper inclined flange is an upper inclined flange that protrudes from the hypotenuse of the triangular base plate and is coplanar with the outer surface of the triangular base plate. The outer surface of the upper inclined flange is higher than the outer surface of the hypotenuse of the triangular base plate, and an inner step is formed on the outer surface of the upper inclined flange and the triangular base plate. The thickness of the inner step on the outer surface of the triangular base plate is the same as that of the lower inclined flange. The lower inclined flange is a lower inclined flange that protrudes from the hypotenuse of the triangular base plate and is coplanar with the inner surface of the triangular base plate. The inner surface of the lower inclined flange is higher than the inner surface of the hypotenuse of the triangular base plate, and an outer step is formed on the inner surface of the lower inclined flange and the triangular base plate. The thickness of the outer step on the inner surface of the triangular base plate is the same as that of the upper inclined flange.

6. The split-type packaging box according to claim 1, characterized in that, The card slot includes a strip-shaped groove located near the inner side of the second engaging portion that mates with the first card edge portion, and a fixing groove located at the bottom of the strip-shaped groove that mates with the first card head portion.

7. The split-type packaging box according to claim 6, characterized in that, The outer surface of the second engaging portion is coplanar with the outer surface of the second side plate, and the thickness of the second engaging portion in the second direction is greater than the thickness of the first side plate; the inner surface of the second engaging portion is coplanar with the inner surface of the second side plate, and the thickness of the second engaging portion in the first direction is greater than the thickness of the second side plate.

8. The split-type packaging box according to claim 7, characterized in that, The outer surface of the first card edge is lower than the outer surface of the first side plate, and a step is formed on the outer surface of the first card edge and the outer surface of the first side plate. The thickness of the step in the direction perpendicular to the plane of the first side plate is the same as the thickness of the strip groove in the first direction.

9. The split-type packaging box according to any one of claims 6-8, characterized in that, The length of the first card edge portion is the same as the length of the first card head portion, and the length of the first card edge portion is the same as the length of the first free side portion; the length of the second engaging portion is the same as the length of the card slot, and the length of the second engaging portion is the same as the length of the second free side portion.

10. The split-type packaging box according to claim 1, characterized in that, It also includes a cover profile that covers the top and / or bottom of the side panel of the packaging box.

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