Packaging box

Abstract

The present application discloses a packaging box, and the specific implementation manner is as follows: The packaging box includes a bottom plate, a first side shell, a second side shell and two end shells. The two end shells are respectively connected to both sides of the bottom plate along a first direction, and slots are respectively formed on both sides of the end shell along a second direction. The first side shell is connected to one side of the bottom plate along the second direction, and two first convex shells are connected to the first side shell. The second side shell is connected to the other side of the bottom plate along the second direction, and two second convex shells are connected to the second side shell. When the packaging box is in a folded state, the two first convex shells are respectively inserted into the slots on the corresponding sides of the two end shells, and the two second convex shells are respectively inserted into the slots on the corresponding sides of the two end shells.

Description

Technical Field

[0001] The present disclosure relates to the technical field of packaging, and in particular, to a packaging box. Background Art

[0002] Electronic products are generally sold together with their packaging boxes. The packaging box is formed by folding cardboard, which usually includes a plurality of foldable sheet parts. After folding, each foldable sheet part can form different side walls of the packaging box respectively. However, in the packaging box formed by folding each foldable sheet part, there is no seal between two adjacent side walls, and there are relatively large gaps, resulting in poor overall sealing of the packaging box and insufficient protection for the internal product. Summary of the Invention

[0003] The purpose of the present invention is to provide a packaging box.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions:

[0005] The present application provides a packaging box, including: a bottom plate, a first side shell, a second side shell, and two end shells. The two end shells are respectively connected to both sides of the bottom plate along a first direction, and slots are respectively formed on both sides of the end shell along a second direction. The first side shell is connected to one side of the bottom plate along the second direction, and two first convex shells are connected to the first side shell. The second side shell is connected to the other side of the bottom plate along the second direction, and two second convex shells are connected to the second side shell. When the packaging box is in a folded state, the two first convex shells are respectively inserted into the slots on the corresponding sides of the two end shells, and the two second convex shells are respectively inserted into the slots on the corresponding sides of the two end shells.

[0006] The technical solutions of the present disclosure will be further described in detail below with reference to the drawings and embodiments. Brief Description of the Drawings

[0007] The drawings forming a part of the specification depict embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0008] Referring to the drawings, the present disclosure can be understood more clearly according to the following detailed description, where:

[0009] Figure 1 is a schematic perspective view of the packaging box provided by the embodiment of the present application;

[0010] Figure 2 is a schematic view of the packaging box provided by the embodiment of the present application in a semi-folded state (where some structures are not shown);

[0011] Figure 3 is a schematic perspective view of the packaging box provided by the embodiment of the present application in an unfolded state;

[0012] Figure 4It is another three-dimensional structural schematic diagram (with some structures not shown) of the packaging box provided by the embodiment of the present application in the unfolded state;

[0013] Figure 5 It is the front view (with some structures not shown) of the packaging box provided by the embodiment of the present application in the unfolded state;

[0014] Figure 6 It is another front view (with some structures not shown) of the packaging box provided by the embodiment of the present application in the unfolded state;

[0015] Figure 7 It is the bottom view of the packaging box provided by the embodiment of the present application in the unfolded state;

[0016] Figure 8 It is the arrangement schematic diagram of each fitting plate in the fitting assembly of the packaging box provided by the embodiment of the present application;

[0017] Figure 9 It is the structural schematic diagram of the functional folding plate in the packaging box provided by the embodiment of the present application;

[0018] Figure 10 It is the structural schematic diagram of the pocket piece in the packaging box provided by the embodiment of the present application.

[0019] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the present application provides a packaging box, including a bottom plate 1, a first side shell 3, a second side shell 4, a first end shell 2a and a second end shell 2b. The first end shell 2a and the second end shell 2b are respectively connected to both sides of the bottom plate 1 along the first direction. Slots 21 are respectively formed on both sides of the two end shells (the first end shell 2a and the second end shell 2b) along the second direction. The first side shell 3 is connected to one side of the bottom plate 1 along the second direction, and two first convex shells 33 are connected to the first side shell 3. The second side shell 4 is connected to the other side of the bottom plate 1 along the second direction, and two second convex shells 44 are connected to the second side shell 4. When the packaging box is in the folded state, the two first convex shells 33 are respectively inserted into the slots 21 on one side of the two end shells along the second direction, and the two second convex shells 44 are respectively inserted into the slots 21 on the other side of the two end shells along the second direction. It can be understood that the first direction and the second direction are basically perpendicular to each other. Exemplarily, the first direction and the second direction can be the length direction and the width direction of the bottom plate 1 respectively.

[0024] The packaging box has a folded state and an unfolded state. See Figure 5 and Figure 6 As shown, the term "unfolded state" can be understood as that the structures of the packaging box, such as: the bottom plate 1, the first side shell 3, the second side shell 4, the first end shell and the second end shell, are all completely unfolded in the same plane or approximately in the same plane, and the packaging box as a whole is in a sheet shape. See Figure 1 As shown, the term "folded state" can be understood as that the packaging box is folded into a three-dimensional state, and the structures of the packaging box, such as: the bottom plate 1, the first side shell 3, the second side shell 4, the first end shell, and the second end shell, are all in a folded and mutually limited and formed packaging state. The folded state is the state when the product is sold and delivered.

[0025] See Figure 5 and Figure 6 As shown, they are all schematic diagrams of the packaging box in the unfolded state. The shaded parts in the figures indicate the positions where the adhesive is coated on the packaging box. The packaging box of the present application can be a cardboard structure, and the parts marked with "stars" in the figures indicate the positions where the cardboard is thinned.

[0026] In the embodiments of the present application, the packaging box can be of various shapes. Here, the packaging box being in the shape of a cube or a cuboid will be taken as an example for illustration. The first side shell 3, the second side shell 4, and the two end shells respectively form the four side walls of the packaging box, and the four side walls enclose a receiving cavity for the product. Slots 21 are formed on both sides of the end shell 2, and the convex shells on the side shell can be directly inserted into the slots 21, closing the gap between the side shell and the end shell, improving the sealing performance of the packaging box. The insertion of the convex shells into the slots 21 also enhances the structural strength of the packaging box. During the folding and forming process of the packaging box in the present application, the two end shells can be first folded to a state substantially perpendicular to the bottom plate 1, and then the side shells on both sides (the first side shell 3 and the second side shell 4) can be folded respectively. For example, the second side shell 4 can be first folded so that the second convex shells 44 on both sides of the second side shell 4 are respectively inserted into the slots 21 on the corresponding sides of the two end shells. At this time, the two end shells and the second side shell 4 are substantially shaped. The operator can then fold up the first side shell 3 so that the two first convex shells 33 on both sides of the first side shell 3 are respectively inserted into the slots 21 on the corresponding sides of the two end shells. It should be noted that, in order to clearly show the structure of the packaging box of the present application, in the attached Figure 2 the second end shell 2b on one side is deleted.

[0027] See Figure 2 and Figure 3 As shown, in a possible implementation, the first side shell 3 includes a first folding plate 31 and a second folding plate 32. The first folding plate 31 is connected to the bottom plate 1, and the second folding plate 32 is connected to the first folding plate 31. The two first convex shells 33 are respectively connected to both sides of the first folding plate 31 along the first direction. When the packaging box is in the folded state, the second folding plate 32 closes the side opposite to the bottom plate 1 of the packaging box.

[0028] In this implementation, when the packaging box is in the folded state or during the folding process, the first convex shells 33 on both sides of the first folding plate 31 can be respectively inserted into the slots 21 of the two end shells. The first folding plate 31 forms one side wall of the packaging box, and the second folding plate 32 can be folded to be substantially perpendicular to the first folding plate 31 to close the top of the packaging box. The second folding plate 32 covers the top of the receiving cavity formed by the enclosure of the first side shell 3, the second side shell 4, and the two end shells, constituting at least a part of the top wall of the packaging box.

[0029] See Figure 4 and Figure 5As shown, in a possible implementation, the first convex shell 33 is formed by folding a first folding piece 330, and the first folding piece 330 is connected to the first folding plate 31. The first folding piece 330 has a plurality of creases, and after the first folding piece 330 is folded along each crease 331, the first convex shell 33 is formed. For example, each crease 331 can be parallel to each other, and each crease 331 extends along the second direction. After the first folding piece 330 is folded along each crease 331, a first convex shell 33 in the shape of a quadrangular prism is formed. Exemplarily, three creases are provided on the first folding piece 330, and the three creases divide the first folding piece 330 into four strip-shaped pieces, and each strip-shaped piece constitutes one face of the quadrangular prism respectively. Among the four strip-shaped edges, the strip-shaped edge far from the first folding plate 31 is used to fit on the first folding plate 31. For example, this strip-shaped piece can be adhesively bonded to the first folding plate 31 by glue, so that the second convex shell 44 can maintain the shape of a quadrangular prism without deformation.

[0030] In a possible implementation, refer to Figure 6 As shown, a concave notch 332 is provided on the width side of the first folding piece 330 close to the bottom plate 1. In this way, when the first folding piece 330 is folded to form the first convex shell 33, one end of the first convex shell 33 close to the bottom plate 1 forms an inclined structure away from the bottom plate 1, reducing the cross-sectional area of the insertion end of the first convex shell 33 and facilitating the smooth insertion of the first convex shell 33 into the slot 21.

[0031] Refer to Figure 3 and Figure 4 As shown, in a possible implementation, a pocket piece 34 is connected to the first folding plate 31. The first convex shell 33 includes a main convex shell 33a and a bendable convex shell 33b. The first folding plate 31 has a bent state. In the bent state, the bendable convex shell 33b is bent relative to the main convex shell 33a, and a part of the first folding plate 31 is separated from the pocket piece 34.

[0032] In this implementation, the main convex shell 33a and the bendable convex shell 33b are arranged in sequence along the edge of the first folding plate 31. By dividing the first convex shell 33 into the main convex shell 33a and the bendable convex shell 33b, the first folding plate 31 can be bent. The product manual can be placed inside the pocket piece 34. One side of the manual extends into the inside of the pocket piece 34, and the other side can be flush with the top side of the pocket piece 34 to minimize the volume of the packaging box. When the user opens the packaging box, the first side shell 3 can be opened first, and the first folding plate 31 can be bent with force, so that the bendable convex shell 33b is bent relative to the main convex shell 33a. The part of the first folding plate 31 corresponding to the bendable convex shell 33b is also in a bent state and is separated from the pocket piece 34, and a part of the side of the manual facing the first folding plate 31 is exposed, facilitating the user to take out the manual.

[0033] Refer to Figure 10As shown, the pocket piece 34 has four sides, and connecting pieces 341 can be provided on three of the sides, which is convenient for bonding to the first folding plate 31. A reinforcing piece 342 is provided on the other side of the pocket piece 34. The reinforcing piece 342 is folded inwards and attached to the main board body of the pocket piece, increasing the thickness of the opening edge of the pocket piece 34 and strengthening the opening edge of the pocket piece 34.

[0034] In a possible implementation, as shown in Figure 3 As shown, the first convex shell 33 has a die-cut slit 33c, and the die-cut slit 33c divides the first convex shell 33 to form a main convex shell 33a and a bendable convex shell 33b.

[0035] In this implementation, the die-cut slit 33c can be cut on the formed first convex shell 33. Alternatively, the die-cut slit 33c can also be cut on the unfolded first folding piece 330. In the embodiments of the present application, the main convex shell 33a and the bendable convex shell 33b are quickly processed by direct cutting, simplifying the processing process and improving the production efficiency.

[0036] As shown in Figure 4 and Figure 5 As shown, in a possible implementation, a bending mark 31a is provided on the first folding plate 31, and the bending mark 31a extends from a die-cut slit 33c on one first convex shell 33 to a die-cut slit 33c on another first convex shell 33.

[0037] In this implementation, by processing the bending mark 31a on the first folding plate 31, the first folding plate 31 can be easily bent along the bending mark 31a. When the user unpacks the box, applying a light force to the first folding plate 31 can cause the first folding plate 31 to bend and deform along the bending mark 31a, exposing the edge of the instruction manual and facilitating the removal of the instruction manual.

[0038] In a possible implementation, as shown in Figure 3 As shown, a notch 343 is provided on one side edge of the pocket piece 34 close to the second folding plate 32.

[0039] In this implementation, when the instruction manual is inserted into the inner side of the pocket piece 34, the edge of the instruction manual is exposed outside the notch 343. When the user disassembles the packaging box and bends the first folding plate 31, both sides of the instruction manual in the thickness direction can be exposed, facilitating the user to pinch both sides of the instruction manual with fingers and remove the instruction manual.

[0040] As shown in Figure 2 、 Figure 3 and Figure 4As shown, in a possible implementation, the second side shell 4 includes a third folding plate 41, a fourth folding plate 42, and a connecting plate 43. The third folding plate 41 is connected to the bottom plate 1, and the connecting plate 43 connects the third folding plate 41 and the fourth folding plate 42. A first support notch 422 is provided on the fourth folding plate 42. When the packaging box is in the folded state, the fourth folding plate 42 is located inside the packaging box, and the third folding plate 41 is located outside the packaging box.

[0041] In this implementation, the fourth folding plate 42 constitutes a part of the inner wall of the accommodation cavity of the packaging box. By providing the first support notch 422 on the fourth folding plate 42, after the product is loaded into the accommodation cavity, the edge part of the product can extend into the first support notch 422, and the first support notch 422 can play a role in supporting and fixing the product, so that the product can be stably accommodated in the accommodation cavity without being easily shaken or displaced. The setting of the first support notch 422 also makes full use of the internal space of the packaging box, which is beneficial to reducing the volume of the packaging box and saving materials. Exemplarily, the product can be an eyeglass case, and a protruding structure is formed on the side of the eyeglass case, and this protruding structure can be snapped into the first support notch 422. For example, the eyeglass case has an upper cover and a lower cover, and there is a partial direct connection and a partial connection by a zipper between the upper cover and the lower cover. Due to process requirements, a protruding structure is formed at the directly connected part between the upper cover and the lower cover, and this protruding structure can extend into the first support notch 422, making use of the space between the third folding plate 41 and the fourth folding plate 42. See Figure 5 As shown, a first semi-circular notch 422a can be provided at the edge of the first support notch 422 to facilitate the user's finger to reach in and take out the eyeglass case.

[0042] See Figure 2 、 Figure 3 and Figure 4 As shown, two second convex shells 44 are respectively provided on both sides of the third folding plate 41 along the first direction. The connecting plate 43 is strip-shaped, and there are creases between the connecting plate 43 and the third folding plate 41 and the fourth folding plate 42 respectively. When folding the second side shell 4, first fold the third folding plate 41 substantially perpendicular to the bottom plate 1, and then fold the fourth folding plate 42 downwards so that the fourth folding plate 42 and the third folding plate 41 are substantially parallel, and the connecting plate 43 is substantially perpendicular to the third folding plate 41 and the fourth folding plate 42 respectively. The third folding plate 41 and the fourth folding plate 42 together form a side wall of the packaging box, and the third folding plate 41 is located outside the packaging box, and the fourth folding plate 42 is located inside the packaging box.

[0043] The second convex shell 44 is formed by folding a second folding piece, and the second folding piece is connected to the third folding plate 41. The second folding piece has a plurality of creases, each crease is substantially parallel to each other and extends along the second direction. After the second folding piece is folded along each crease, a second convex shell 44 in the shape of a quadrangular prism is formed. Exemplarily, three creases are provided on the second folding piece, and the three creases divide the second folding piece into four strip-shaped pieces, and each strip-shaped piece constitutes a face of the quadrangular prism. The strip-shaped side away from the third folding plate 41 among the four strip-shaped sides is used to fit on the third folding plate 41. For example, this strip-shaped piece can be adhesively bonded to the third folding plate 41 with glue, so that the second convex shell 44 can maintain the shape of a quadrangular prism without deformation.

[0044] In a possible implementation, the end shell 2 includes a fifth folding plate 22 and a sixth folding plate 23. The fifth folding plate 22 is connected to the bottom plate 1, and the sixth folding plate 23 is connected to the fifth folding plate 22 through a support plate 25. During folding, the fifth folding plate 22 is folded upward to the upper part of the bottom plate 1, and the sixth folding plate 23 is folded toward the bottom plate 1. The edge of the sixth folding plate 23 is connected with a fitting piece, and this fitting piece can be supported and fitted on the bottom plate 1 to improve the stability of the end shell 2. The fifth folding plate 22 and the sixth folding plate 23 constitute a side wall of the packaging box, and the sixth folding plate 23 is located inside, and the fifth folding plate 22 is located outside the packaging box body. A slot 21 is formed between the fifth folding plate 22 and the sixth folding plate 23. Support holes 231 can be provided on the sixth folding plate 23. When the product is loaded into the packaging box, the two ends of the product can be respectively supported in the support holes 231 of the two end shells. The support holes 231 have the function of positioning the product to prevent the product from shaking. At the same time, the setting of the support holes 231 borrows the internal space of the end shell 2, so that a part of the product can extend into the end shell 2, which is beneficial to reducing the size of the packaging box and saving materials. The product can be an eyeglass case. The eyeglass case has a protruding structure around it. A notch is provided on the support hole 231, and the notch can avoid the protruding structure on the eyeglass case.

[0045] See Figure 6 As shown, the packaging box further includes a reinforcing plate 24, and the reinforcing plate 24 is connected to the sixth folding plate 23. The reinforcing plate 24 has a folded state of being folded to fit the sixth folding plate 23. Exemplarily, reinforcing plates 24 can be provided on both sides of the sixth folding plate 23 along the second direction. The reinforcing plates 24 can be folded on the surface of the sixth folding plate 23. The reinforcing plates 24 are provided with avoidance notches at positions corresponding to the support holes 231. The setting of the reinforcing plates 24 enhances the structural strength of the sixth folding plate 23 and improves the quality of the entire packaging box.

[0046] See Figure 2 and Figure 3As shown, in a possible embodiment, both end shells are provided with grooves 26, and the second folding plate 32 of the first side shell 3 is connected with an insert 35 on one side edge facing away from the first folding plate 31. When the packaging box is in a folded state, the second folding plate 32 covers the side of the packaging box opposite to the bottom plate 1, and the insert 35 can be inserted into the groove 26. The third folding plate 41 and the connecting plate 43 of the second side shell 4 have the same length along the first direction. The fourth folding plate 42 includes a wide plate portion and a narrow plate portion, the wide plate portion and the connecting plate 43 have the same length, the length of the narrow plate portion is smaller than that of the wide plate portion, and the wide plate portion has plug-in edges 421 located on both sides of the narrow plate portion. In the process of folding to form the second side shell 4, the two plug-in edges 421 on the inner side of the second side shell 4 can be respectively inserted into the grooves 26 on the two end shells.

[0047] It should be noted that the plates of the packaging box of the present application can be pure paperboard, for example, corrugated paper, with a three-layer or even more-layer structure. After the packaging box is formed, the two sides of the connecting plate 43 of the second side shell 4 are supported on the supporting plate 25 of the end shell 2, and the two sides of the second folding plate 32 of the first side shell 3 are respectively supported on the supporting plates 25 of the corresponding end shell 2. In order to make the top side of the folded packaging box look light, thin and beautiful, in the embodiment of the present application, the two side edges of the second folding plate 32 along the first direction and the two side edges of the connecting plate 43 along the first direction can be pressed thin, so that the second folding plate 32 and the connecting plate 43 supported on the end shell look light, thin and beautiful.

[0048] See also Figure 2 , Figure 4 and Figure 8 As shown, in a possible embodiment, the packaging box further includes a fitting component 45, and the fitting component 45 is fitted to a side of the fourth folding plate 42 that is away from the internal accommodating cavity of the packaging box. When the packaging box is in a folded state, the fitting component 45 is located in a cavity formed between the fourth folding plate 42 and the third folding plate 41, and the fitting component 45 has a support space 452 that is connected to the first support notch 422. When the packaging box is in a folded state, the cross section of the support space 452 gradually decreases in the direction from the fourth folding plate 42 to the third folding plate 41.

[0049] In this embodiment, the cross section of the support space 452 is gradually reduced to match the shape of the product edge, thereby increasing the contact surface with the product and providing good support stability for the product. The arrangement of the fitting component 45 also enhances the structural strength of the fourth folding plate 42 and improves the structural stability of the packaging box. The third folding plate 41 is located outside the packaging box to shield the fitting component 45 and has an aesthetic effect.

[0050] In one possible embodiment, see Figure 2 and Figure 8As shown, the laminating assembly 45 includes a plurality of laminating plates 451, each of which is stacked and each of which has a second support notch 451a. When the packaging box is in a folded state, the area of ​​each second support notch 451a decreases in sequence from the fourth folding plate 42 to the third folding plate 41.

[0051] In this embodiment, the laminating assembly 45 is composed of a plurality of laminating plates 451, each of which is stacked and laminated in the thickness direction. Figure 8 In the middle shaded part, except for the second support notch 451a, adhesive can be applied to other parts of each bonding plate 451. Two adjacent bonding plates 451 are bonded and fixed by adhesive, and the second support notches 451a of each bonding plate 451 are combined to form a support space 452 that gradually shrinks in a stepped shape. A second semicircular notch 451b is provided on each bonding plate 451 to facilitate the user to insert his fingers to take out the glasses case.

[0052] The packaging box of the present application can accommodate not only the glasses case but also some accessories of the smart glasses. For example, the packaging box can also contain a lens cover, a myopic lens, a nose pad, etc. For example, see Figure 3 , Figure 4 and Figure 9As shown, the packaging box also includes a functional folding plate 46, which includes a first functional plate 461 and a second functional plate 462. The first functional plate 461 and the second functional plate 462 are foldably connected, the first functional plate 461 can be bonded to the third folding plate 41, and the second functional plate 462 is located between the first functional plate 461 and the fourth folding plate. Three limiting plates 461a are sequentially arranged on the first functional plate 461 along the length direction, and the limiting plates 461a located in the middle and the limiting plates 461a located on both sides face oppositely. The mirror cover includes two lens cover parts and a connecting plate part connecting the two lens cover parts, the connecting plate part can be inserted into the inner side of the limiting plate in the middle, and the two lens cover parts can be respectively inserted into the inner sides of the limiting plates on the two sides, so that each limiting plate 461a cooperates to clamp and fix the mirror cover. The edge of the first functional plate 461 facing away from the second functional plate 462 is also connected to the third functional plate 463, the third functional plate 463 and the first functional plate 461 can be folded and connected, and a plurality of grooves 463a are provided on the third functional plate 463. The myopic glasses have two lenses and a support beam connecting the two lenses, the support beam can be inserted and fixed in a mounting groove 463a, and the third functional plate 463 can be folded toward the first functional plate 461 to hide the myopic glasses. The second functional plate 462 can be folded toward the first functional plate 461, and a nose pad fixing strip 4622 can be connected to the side of the second functional plate 462 facing away from the first functional plate 461. An insertion slot 4623 is provided on the second functional plate 462, one end of the nose pad fixing strip 4622 is pasted on the second functional plate 462, and the other end can be inserted into the insertion slot 4623. The nose pad is in an eight-shaped shape, and the nose pad fixing strip 4622 can pass through the middle position of the eight-shaped shape to fix the nose pad. The second function board 462 has an inserting strip 4621 , and the third function board 463 has a strip groove 463 a . After the second function board 462 is folded, the inserting strip 4621 can be inserted into the strip groove 463 a of the third function board 463 .

[0053] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A packaging box, comprising: a bottom board; a first end shell and a second end shell, the first end shell and the second end shell are respectively connected to two sides of the bottom board along a first direction, and slots are respectively formed on two sides of each of the first end shell and the second end shell along a second direction; a first side shell, the first side shell is connected to one side of the bottom board along the second direction, the first side shell includes a first folding plate and a second folding plate, and two first convex shells are connected to the first folding plate; a second side shell, the second side shell is connected to the other side of the bottom board along the second direction, two second convex shells are connected to the second side shell, the second side shell includes a third folding plate and a fourth folding plate, and in a folded state of the packaging box, the two first convex shells are respectively inserted into the slots on one side along the second direction, and the two second convex shells are respectively inserted into the slots on the other side along the second direction; a functional folding plate, the functional folding plate includes: a first functional plate, the first functional plate is bonded to the third folding plate, and a plurality of limiting pieces are arranged on the first functional plate for fixing a lens hood; a second functional plate, the second functional plate is foldably connected to the first functional plate, a slot is arranged on the second functional plate, and an inserting strip is arranged on the second functional plate; a third functional plate, the third functional plate is foldably connected to the first functional plate, a first slot and a second slot are formed on the third functional plate, the first slot is used for connecting a myopia glasses, and after the second functional plate is folded, the inserting strip can be inserted into the second slot; a nose pad fixing strip, one end of the nose pad fixing strip is pasted on the second functional plate, and the other end is inserted into the slot.

2. The packaging box according to claim 1, wherein, the first folding plate is connected to the bottom board, and the second folding plate is connected to the first folding plate; the two first convex shells are respectively connected to two sides of the first folding plate along the first direction; in a folded state of the packaging box, the second folding plate closes a side of the packaging box opposite to the bottom board.

3. The packaging box according to claim 2, wherein, the first convex shell is formed by folding a first folding piece, and the first folding piece is connected to the first folding plate; the first folding piece has a plurality of creases, and a convex shell is formed after the first folding piece is folded along each of the creases.

4. The packaging box according to claim 3, wherein, a concave notch is arranged on a side edge of the first folding piece close to the bottom board, and one end of the convex shell formed by folding the first folding piece with the concave notch forms an inclined structure.

5. The packaging box according to claim 2, wherein, a pocket piece is connected to the first folding plate; the first convex shell includes a main convex shell and a bendable convex shell; the first folding plate has a bent state, in the bent state, the bendable convex shell bends relative to the main convex shell, and a part of the first folding plate is separated from the pocket piece.

6. The packaging box according to claim 5, wherein, a die-cutting seam is arranged on the first convex shell, and the first convex shell is divided by the die-cutting seam to form the main convex shell and the bendable convex shell.

7. The packaging box according to claim 6, wherein, The first folding plate is provided with a bending mark, and the bending mark extends from a die-cut slit on one of the first convex shells to a die-cut slit on the other first convex shell.

8. The packaging box according to claim 1, wherein, the second side shell includes a connecting plate, the third folding plate is connected to the bottom plate, and the connecting plate connects the third folding plate and the fourth folding plate; a first support notch is provided on the fourth folding plate; when the packaging box is in a folded state, the fourth folding plate is located inside the packaging box, and the third folding plate is located outside the packaging box.

9. The packaging box according to claim 8, wherein, it further includes a fitting assembly, the fitting assembly is located between the third folding plate and the fourth folding plate, and the fitting assembly fits on the fourth folding plate, and the fitting assembly has a support space communicating with the first support notch; in the direction from the fourth folding plate to the third folding plate, the cross-section of the support space gradually decreases.

10. The packaging box according to claim 9, wherein, the fitting assembly includes a plurality of fitting plates, the fitting plates are stacked, and second support notches are formed on each of the fitting plates; in the direction from the fourth folding plate to the third folding plate, the areas of the second support notches decrease in sequence.

11. The packaging box according to claim 1, wherein, both the first end shell and the second end shell include a fifth folding plate, a sixth folding plate and a support plate, the fifth folding plate is connected to the bottom plate, and the support plate connects the fifth folding plate and the sixth folding plate respectively; when the packaging box is in a folded state, the slot is formed between the fifth folding plate and the sixth folding plate.

12. The packaging box according to claim 11, wherein, it includes a reinforcing plate, and the reinforcing plate is connected to the sixth folding plate; the reinforcing plate has a folded state in which it folds to fit the sixth folding plate.

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