Packaging box

Abstract

The utility model discloses a packaging box which comprises a frame body comprising a first opening penetrating in the first direction and a second opening penetrating in the second direction. The first direction is perpendicular to the second direction; the outer boxes are arranged at the two ends, in the first direction, of the frame body in a sleeving mode and cover the first opening, and the outer boxes and the frame body are movably arranged in the first direction; the inner boxes are arranged in the second openings, and the inner boxes and the frame body are movably arranged in the second direction; one end, in the first direction, of each connecting part is rotatably connected with the inner box, and the other end of each connecting part is rotatably connected with the outer box. According to the packaging box, the good display effect is provided, and meanwhile the packaging box is simple in structure and high in reliability.

Description

Technical Field

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

[0002] Most packaging boxes are opened by flipping up the lid. Although the structure is simple and reliable, it is difficult to fully display the packaged items, which affects the user's experience of the packaged items when opening the package. A small number of packaging boxes can fully display the packaged items through some structural settings, but this also makes the packaging box structure very complicated and easy to damage. Utility Model Content

[0003] The embodiment of the present application provides a packaging box, which has a simple structure and high reliability while providing a good display effect.

[0004] An embodiment of the present application provides a packaging box, comprising: a frame body, comprising a first opening extending along a first direction and a second opening extending along a second direction; the first direction and the second direction are perpendicular; at least two outer boxes, the outer boxes are respectively mounted on both ends of the frame body along the first direction and cover the first opening, and the outer boxes and the frame body are movably arranged along the first direction; at least two inner boxes, the inner box is arranged at the second opening, and the inner box and the frame body are movably arranged along the second direction; at least four connecting parts, one end of the connecting part along the first direction is rotatably connected to the inner box, and the other end is rotatably connected to the outer box.

[0005] According to an embodiment of the present application, it also includes a first fixing portion, wherein both ends of the first fixing portion along the second direction are respectively bent and connected to a connecting portion, and the first fixing portion and the two connecting portions are arranged in an integrated structure; the first fixing portion is fixedly connected to the outer box.

[0006] According to an embodiment of the present application, a second fixing portion is further included, the second fixing portion is bent and connected to an end of the connecting portion away from the first fixing portion, and the second fixing portion is fixedly connected to one side of the inner box along the second direction.

[0007] According to the embodiment of the present application, the first fixing portion is plate-shaped and perpendicular to the first direction, and the first fixing portion is fixedly connected to the inner wall surface of the outer box.

[0008] According to an embodiment of the present application, the outer box includes an extension portion and an anti-detachment portion, the extension portion extends along a first direction, and the extension portions of the two outer boxes are arranged facing each other; the anti-detachment portion is arranged on the side of the extension portion facing the frame body; an anti-detachment structure is provided on the outer side of both ends of the frame body along the first direction, and the anti-detachment structure and the anti-detachment portion can abut against each other along the first direction.

[0009] According to an embodiment of the present application, the anti-slip portion includes a first part and a second part, the first part and the second part are bent and connected, and the first part is fixedly connected to the extension part; the anti-slip structure is plate-shaped.

[0010] According to an embodiment of the present application, the frame body includes an end plate located in the second direction, and the second opening is located on the end plate; along the second direction, the orthographic projection of the second opening overlaps with the orthographic projection of the inner box; along the second direction, the length of the frame body is greater than or equal to twice the length of the inner box.

[0011] According to an embodiment of the present application, the inner box includes an inner box opening and an inner support, and the direction of the inner box opening is perpendicular to both the first direction and the second direction; the inner support is arranged in the inner box and exposed to the inner box opening.

[0012] According to an embodiment of the present application, the inner support includes at least one accommodating portion.

[0013] According to an embodiment of the present application, it also includes a first decorative layer, a second decorative layer and a third decorative layer, the first decorative layer covers at least a portion of the frame, the second decorative layer covers at least a portion of the inner box, and the third decorative layer covers at least a portion of the outer box.

[0014] In the packaging box provided by the embodiment of the present application, two outer boxes are respectively sleeved on both sides of the frame along the first direction, and two inner boxes are arranged at the second opening of the frame, and one end of each connecting portion is connected to the inner box and the other end is connected to the outer box, and passes through the first opening. When the two outer boxes are pulled at the same time, the two connecting portions with the same inner box and the corresponding inner box will be tightened, and the inner box will be pushed out from the second opening. Considering that the two inner boxes can be extended from the second opening synchronously and display the packaged items, the packaging box of the embodiment of the present application improves the display ability of the packaged items. In addition, by tightening the two connecting portions with the same inner box and the corresponding inner box to make the inner box extend from the second opening, the structure of the packaging box of the embodiment of the present application can be simplified and the cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0016] Figure 1 A schematic diagram of the structure of a packaging box according to an embodiment of the present application.

[0017] Figure 2 This is a schematic diagram of the structure of the packaging box after it is opened according to an embodiment of the present application.

[0018] Figure 3 This is a schematic diagram of an exploded view of the parts of a packaging box according to an embodiment of the present application.

[0019] Figure 4 A schematic diagram of the internal structure of a packaging box according to an embodiment of the present application.

[0020] Figure 5 This is a schematic diagram of the internal structure of the packaging box after it is opened according to an embodiment of the present application.

[0021] Reference numerals:

[0022] 1. frame; 11. first opening; 12. second opening; 13. anti-slip structure; 14. end plate;

[0023] 2. outer box; 21. extension portion; 22. anti-slip portion; 221. first portion; 222. second portion;

[0024] 3. Inner box; 31. Inner box opening; 32. Inner support; 321. Accommodation portion;

[0025] 4. Connecting part;

[0026] 5. A first fixing portion;

[0027] 6. A second fixing portion;

[0028] X, first direction; Y, second direction.

[0029] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0031] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0032] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of..." or "when..." or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions, steps or operations are inherently mutually exclusive in some way. When describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or another region, it may mean being directly above the other layer or another region, or containing other layers or regions between it and the other layer or another region. Moreover, if the component is turned over, the layer or region will be "below" or "below" the other layer or another region. In the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A, but B can also be determined based on A and / or other information.

[0033] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0035] The applicant found that when the packaging box is opened by flipping up the lid, the lid is bent and connected to the box body. Although the structure is simple and reliable, it is difficult to fully display the packaged items, which affects the user's experience of the packaged items when opening the packaging box. When the packaging box is provided with some movable structures (such as slide rails, sliders, springs, etc.) to more fully display the packaged items, the structure of the packaging box is more complicated due to the provision of the movable structure, and it is easy to get stuck and damaged.

[0036] In view of the above problems, the applicant has proposed a packaging box, including a frame, an outer box, an inner box and a connecting portion. The two outer boxes are respectively sleeved on both sides of the frame along the first direction, and the two inner boxes are arranged at the second opening of the frame, and each connecting portion is connected to the inner box at one end and the outer box at the other end, and passes through the first opening. When the two outer boxes are pulled at the same time, the two connecting portions with the same inner box and the corresponding inner box will be tightened, and the inner box will be pushed out from the second opening. Considering that the two inner boxes can be stretched out from the second opening synchronously and display the packaged items, the packaging box of the embodiment of the present application improves the display capability of the packaged items. In addition, by tightening the two connecting portions with the same inner box and the corresponding inner box to make the inner box extend from the second opening, the structure of the packaging box of the embodiment of the present application can be simplified and the cost can be reduced.

[0037] Specifically, see Figures 1 to 5 The embodiment of the present application provides a packaging box, including a frame 1, an outer box 2, an inner box 3 and a connecting portion 4. The frame 1 includes a first opening 11 penetrating along a first direction X and a second opening 12 penetrating along a second direction Y; the first direction X and the second direction Y are perpendicular; at least two outer boxes 2, the outer boxes 2 are respectively sleeved at both ends of the frame 1 along the first direction X, and cover the first opening 11, and the outer boxes 2 and the frame 1 are movably arranged along the first direction X; at least two inner boxes 3, the inner boxes 3 are arranged at the second opening 12, and the inner boxes 3 and the frame 1 are movably arranged along the second direction Y; at least four connecting portions 4, one end of the connecting portion 4 along the first direction X is rotatably connected to the inner box 3, and the other end is rotatably connected to the outer box 2.

[0038] In the embodiment of the present application, the first direction X and the second direction Y are perpendicular to each other. When the packaging structure of the embodiment of the present application is placed on a horizontal plane, the first direction X and the second direction Y may be two horizontal directions perpendicular to each other.

[0039] The frame 1 is used as a mounting carrier for other components of the packaging box of the embodiment of the present application, and can also provide the packaging box of the embodiment of the present application with good structural strength and protect the packaged items. The first opening 11 penetrates the frame 1 along the first direction X, and there are openings at both ends of the frame 1 along the first direction X. Similarly, the second opening 12 penetrates the frame 1 along the second direction Y, and there are openings at both ends of the frame 1 along the second direction Y.

[0040] At least two inner boxes 3 are respectively arranged at the second opening 12. The inner boxes 3 are used to contain the packaged articles. The inner boxes 3 can extend from the frame 1 at the second opening 12, or can be retracted into the frame 1. At least two outer boxes 2 are respectively sleeved at both ends of the frame 1 along the first direction X to protect the internal structure, and the outer boxes 2 can move relative to the frame 1 along the first direction X.

[0041] There are at least four connecting parts 4, each of which is connected to an outer box 2 and an inner box 3, that is, one outer box 2 is connected to two inner boxes 3 through two connecting parts 4, and one inner box 3 is connected to two outer boxes 2 through two connecting parts 4. At this time, the outer box 2 and the inner box 3 are connected as a whole. The connecting part 4 and the inner box 3 are rotatably arranged, and the connecting part 4 and the outer box 2 are rotatably arranged. The connecting part 4 can pass through the first opening 11 to avoid motion interference between the frame 1 and the connecting part 4.

[0042] When opening the packaging box of the embodiment of the present application, the two outer boxes 2 are pulled back at the same time, and the electric connection part 4 of the outer box 2 rotates, so that the connection part 4 and the inner box 3 are stretched straight, and then the inner box 3 is ejected from the second opening 12. When closing the packaging box of the embodiment of the present application, the two inner boxes 3 are pushed back into the second opening 12, and the inner box 3 drives the connection part 4 to rotate, so that the connection part 4 and the inner box 3 form a flexed state, and the two outer boxes 2 are pulled to move toward each other. Since the two inner boxes 3 are connected to the outer box 2 through the connection part 4, when the two outer boxes 2 are pulled back, the two inner boxes 3 can be ejected from the second opening 12 synchronously, and the packaged items in the two inner boxes 3 are synchronously displayed, which enhances the display effect of the packaged items. In addition, the packaging boxes of the embodiment of the present application are all in the form of rotation, and the transmission of the inner box 3-connection part 4-outer box 2 can be abstracted as a connecting rod transmission, which has a simple structure, high reliability, and low failure rate.

[0043] Further, see Figures 1 to 3 The packaging box of the embodiment of the present application also includes a first fixing portion 5, and the two ends of the first fixing portion 5 along the second direction Y are each bent and connected to a connecting portion 4, and the first fixing portion 5 and the two connecting portions 4 are arranged in an integrated structure; the first fixing portion 5 is fixedly connected to the outer box 2.

[0044] The first fixing portion 5 is used for connecting the connecting portion 4 with the outer box 2. The first fixing portion 5 is fixedly connected to the outer box 2, and the connecting portion 4 is bent and connected to the first fixing portion 5, so that the connecting portion 4 and the outer box 2 form a rotatable connection. When making the packaging box of the embodiment of the present application, the first fixing portion 5 can be an integral structure with the connecting portion 4, which can be obtained by bending the cut cardboard structure, which can further simplify the structural complexity of the packaging box of the embodiment of the present application. The two connecting portions 4 connected to the same outer box 2 can be bent and connected to the same first fixing portion 5 to further simplify the structural complexity of the packaging box of the embodiment of the present application.

[0045] Further, see Figures 1 to 3 The first fixing portion 5 is plate-shaped and perpendicular to the first direction X. The first fixing portion 5 is fixedly connected to the inner wall surface of the outer box 2 .

[0046] When the plate-shaped first fixing portion 5 is fixed to the inner wall surface of the outer box 2, it has a larger contact area, which can improve the firmness of the connection. Exemplarily, the first fixing portion 5 and the inner wall surface of the outer box 2 can be fixed by bonding.

[0047] Further, see Figures 1 to 3 The packaging box of the embodiment of the present application also includes a second fixing portion 6, which is bent and connected to an end of the connecting portion 4 away from the first fixing portion 5, and the second fixing portion 6 is fixedly connected to one side of the inner box 3 along the second direction Y.

[0048] The second fixing portion 6 is used to connect the connecting portion 4 to the inner box 3. The second fixing portion 6 is fixedly connected to the inner box 3, and the connecting portion 4 is bent and connected to the second fixing portion 6, so that the connecting portion 4 and the inner box 3 are rotatably connected. When making the packaging box of the embodiment of the present application, the second fixing portion 6 can be an integral structure with the connecting portion 4, which is obtained by bending the cut cardboard structure, which can further simplify the structural complexity of the packaging box of the embodiment of the present application.

[0049] Further, see Figures 1 to 3 The outer box 2 includes an extension portion 21 and an anti-slip portion 22, the extension portion 21 extends along the first direction X, and the extension portions 21 of the two outer boxes 2 are arranged facing each other; the anti-slip portion 22 is arranged on the side of the extension portion 21 facing the frame body 1; the outer side of the frame body 1 at both ends along the first direction X is provided with an anti-slip structure 13, and the anti-slip structure 13 and the anti-slip portion 22 can abut against each other along the first direction X.

[0050] The extensions 21 of the two outer boxes 2 are arranged facing each other, and the anti-slipping portion 22 is arranged on the inner side of the extensions 21. In the process of pulling the outer box 2, when most of the outer box 2 is separated from the frame 1, the anti-slipping portion 22 can abut against the anti-slipping structure 13 on the outer side of the frame 1 to form a limiting structure, thereby preventing the outer box 2 from completely falling off from the frame 1. In addition, when the anti-slipping portion 22 abuts against the anti-slipping structure 13 to form a limiting structure, the angle formed by the connecting portion 4 and the side wall of the inner box 3 in the first direction is an acute angle. In the process of closing the packaging box of the embodiment of the present application, the angle formed by the connecting portion 4 and the side wall of the inner box 3 in the first direction can be gradually reduced, so that the inner box 3 retracts to the inside of the frame 1, and the packaging box of the embodiment of the present application is reset, so as to facilitate the reuse of the embodiment of the present application.

[0051] Further, see Figures 1 to 3 The anti-slip portion 22 includes a first portion 221 and a second portion 222 , the first portion 221 and the second portion 222 are bent and connected, and the first portion 221 is fixedly connected to the extension portion 21 ; the anti-slip structure 13 is plate-shaped.

[0052] The first part 221 and the second part of the anti-slip part 22 can be an integral structure. When making the packaging box of the embodiment of the present application, the anti-slip part 22 can be obtained by bending the cut cardboard structure. The cross-sectional shape of the anti-slip part 22 after bending is V-shaped, which occupies a smaller space and reduces the gap between the outer box 2 and the frame 1. The two outer boxes 2 are both provided with an anti-slip part 22. In the two anti-slip parts 22, the connection between the first part 221 and the second part 222 is close to each other. The anti-slip structure 13 is plate-shaped, and the second part 222 can be against the edge of the anti-slip structure 13 to form a limiting structure.

[0053] Further, see Figures 1 to 3 The frame 1 includes an end plate 14 located in the second direction Y, and the second opening 12 is located at the end plate 14; along the second direction Y, the orthographic projection of the second opening 12 overlaps with the orthographic projection of the inner box 3; along the second direction Y, the length of the frame 1 is greater than or equal to twice the length of the inner box 3.

[0054] After the packaging box of the embodiment of the present application is opened, the end plate 14 is in an exposed state, making the packaging box of the embodiment of the present application more beautiful. In addition, along the second direction Y, the orthographic projection of the second opening 12 overlaps with the orthographic projection of the inner box 3, so that the size of the second opening 12 is almost equal to the size of the inner box 3, which is not only conducive to limiting the moving direction of the inner box 3 relative to the frame 1, but also can reduce the risk of foreign matter falling into the interior of the packaging box of the embodiment of the present application.

[0055] Further, see Figures 1 to 3The inner box 3 includes an inner box opening 31 and an inner support 32 . The inner box opening 31 is oriented perpendicular to both the first direction X and the second direction Y. The inner support 32 is disposed in the inner box 3 and exposed to the inner box opening 31 .

[0056] When the packaging box of the embodiment of the present application is placed on a horizontal surface, the inner box opening 31 may be oriented vertically. The inner tray 32 can carry the packaged items, and the user can take out the packaged items through the inner box opening 31 or place the packaged items on the inner tray 32.

[0057] Further, see Figures 1 to 3 The inner support 32 includes at least one receiving portion 321. The number, shape and size of the receiving portions 321 can be determined according to the number, shape and size of the parts of the packaged article. For example, the receiving portion 321 can be in the form of a groove, which can hold the packaged article and also fix and protect the packaged article.

[0058] Furthermore, the packaging box of the embodiment of the present application also includes a first decorative layer, a second decorative layer and a third decorative layer, the first decorative layer covers at least a portion of the frame 1, the second decorative layer covers at least a portion of the inner box 3, and the third decorative layer covers at least a portion of the outer box 2.

[0059] When making the packaging box of the embodiment of the present application, the outer box 2, the inner box 3 and the frame 1 can all be made by bending a cardboard structure, and the cardboard structure can be made of a material with greater structural strength. The first decorative layer covers at least a portion of the frame 1, the second decorative layer covers at least a portion of the inner box 3, and the third decorative layer covers at least a portion of the outer box 2, so that the outer box 2, the inner box 3 and the frame 1 are more beautiful, and the risk of scratching the surface of the outer box 2, the inner box 3 and the frame 1 on the packaged items or users can be reduced.

[0060] In summary, an embodiment of the present application provides a packaging box, wherein two outer boxes are respectively sleeved on both sides of a frame along a first direction, and two inner boxes are arranged at the second opening of the frame, and each connecting portion is connected to the inner box at one end and to the outer box at the other end, and passes through the first opening. When the two outer boxes are pulled at the same time, the two connecting portions with the same inner box and the corresponding inner box will be tightened, and the inner box will be pushed out from the second opening. Considering that the two inner boxes can be extended from the second opening synchronously and display the packaged items, the packaging box of the embodiment of the present application improves the display capability of the packaged items. In addition, by tightening the two connecting portions with the same inner box and the corresponding inner box to make the inner box extend from the second opening, the structure of the packaging box of the embodiment of the present application can be simplified, and the cost can be reduced.

[0061] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A packaging box, characterized in that: include: The frame includes a first opening extending along a first direction and a second opening extending along a second direction; the first direction is perpendicular to the second direction; At least two outer boxes, the outer boxes are respectively sleeved on two ends of the frame along the first direction and cover the first opening, and the outer boxes and the frame are movably arranged along the first direction; at least two inner boxes, the inner boxes being arranged at the second opening, and the inner boxes and the frame being movably arranged along the second direction; At least four connecting parts, one end of the connecting part along the first direction is rotatably connected to the inner box, and the other end is rotatably connected to the outer box.

2. The packaging box according to claim 1, characterized in that: It also includes a first fixing part, wherein the two ends of the first fixing part along the second direction are respectively bent and connected to one of the connecting parts, and the first fixing part and the two connecting parts are arranged in an integrated structure; the first fixing part is fixedly connected to the outer box.

3. The packaging box according to claim 2, characterized in that: It also includes a second fixing portion, which is bent and connected to an end of the connecting portion away from the first fixing portion, and the second fixing portion is fixedly connected to one side of the inner box along the second direction.

4. The packaging box according to claim 2, characterized in that: The first fixing portion is in a plate shape and is perpendicular to the first direction. The first fixing portion is fixedly connected to the inner wall surface of the outer box.

5. The packaging box according to claim 1, characterized in that: The outer box includes an extension portion and an anti-slip portion, the extension portion extends along the first direction, and the extension portions of the two outer boxes are arranged facing each other; the anti-slip portion is arranged on the side of the extension portion facing the frame body; the outer side of the two ends of the frame along the first direction is provided with an anti-slip structure, and the anti-slip structure and the anti-slip portion can abut along the first direction.

6. The packaging box according to claim 5, characterized in that: The anti-slip portion comprises a first portion and a second portion, the first portion and the second portion are bent and connected, and the first portion is fixedly connected to the extension portion; the anti-slip structure is in a plate shape.

7. The packaging box according to claim 1, characterized in that: The frame body includes an end plate located in the second direction, and the second opening is located in the end plate; along the second direction, the orthographic projection of the second opening overlaps with the orthographic projection of the inner box; along the second direction, the length of the frame body is greater than or equal to twice the length of the inner box.

8. The packaging box according to claim 1, characterized in that: The inner box comprises an inner box opening and an inner support, wherein the inner box opening is oriented perpendicular to both the first direction and the second direction; the inner support is disposed in the inner box and exposed to the inner box opening.

9. The packaging box according to claim 8, characterized in that: The inner support includes at least one accommodating portion.

10. The packaging box according to claim 1, characterized in that: It also includes a first decoration layer, a second decoration layer and a third decoration layer, wherein the first decoration layer covers at least a portion of the frame, the second decoration layer covers at least a portion of the inner box, and the third decoration layer covers at least a portion of the outer box.

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