Packaging box

Abstract

The invention discloses a packaging box which has a first use state and a second use state. In the first using state, the packaging box is of a rectangular structure and is used for containing products, and the packaging box comprises a bottom plate, a top plate and side plates, wherein one side plate is provided with a deformation crease, and the deformation crease is parallel to the connecting edge of the side plate and the bottom plate; and in the second use state, the side plate is folded towards the bottom plate around the deformation crease, so that a V-shaped limiting groove sunken towards the bottom plate is formed between the side plate and the top plate, and the V-shaped limiting groove can be used for supporting the product. The packaging box can be used as a packaging box for containing and protecting products, and can also be folded into a product support for supporting the products through the deformation creases, so that the packaging box has multiple functions, the repeated utilization rate of the packaging box can be improved, and waste of materials can be reduced.

Description

Technical Field

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

[0002] At present, online shopping has become the mainstream in the world. When merchants sell various products to consumers, they usually package the products in corresponding packaging boxes. Existing packaging boxes are mainly used for transportation protection and sales promotion. Most of them are only used for protection in logistics and have no other functions. Consumers often throw away the packaging boxes directly after getting the products, which causes a waste of resources. Summary of the invention

[0003] One purpose of an embodiment of the present invention is to provide a packaging box that can be used as a packaging box for storing and protecting products, and can also be folded into a product stand for supporting products through deformation creases, so that the packaging box has multifunctional uses, can increase the reuse rate of the packaging box, and is conducive to reducing material waste.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A packaging box, the packaging box has a first usage state and a second usage state; in the first usage state, the packaging box is a rectangular structure for storing products, including a bottom plate and a top plate arranged opposite to each other and side plates connecting the bottom plate and the top plate at the periphery; one of the side plates is provided with a deformation crease, and the deformation crease is parallel to the connecting edge of the side plate and the bottom plate; in the second usage state, the side plate is folded around the deformation crease toward the bottom plate, so that a V-shaped limit groove recessed toward the bottom plate is formed between the side plate and the top plate, and the V-shaped limit groove can be used to support the product.

[0006] Optionally, the side panel or the top panel provided with the deformation crease is provided with a first limiting portion, and the bottom panel is provided with a second limiting portion, and in the second usage state, the first limiting portion cooperates with the second limiting portion to fix the shape of the V-shaped limiting groove.

[0007] Optionally, the first limiting portion is a limiting card, and the second limiting portion is a limiting groove; or, the first limiting portion is a limiting groove, and the second limiting portion is a limiting card; in the second usage state, the limiting card is inserted into the limiting groove to form a limit.

[0008] Optionally, the limiting card is formed by separating a portion of the side panel or the top panel from its main body.

[0009] Optionally, there are multiple first limiting portions, and their arrangement direction is perpendicular to the deformation fold; and / or, there are multiple second limiting portions, and their arrangement direction is perpendicular to the deformation fold.

[0010] Optionally, the packaging box is formed by folding a flat cardboard.

[0011] Optionally, each of the side panels is respectively connected to the four sides of the bottom panel, and each of the side panels and the bottom panel is provided with a first fold at the connection; the top panel is connected to the side panels provided with deformation folds, and a second fold is provided at the connection.

[0012] Optionally, the top plate is connected to a superimposed plate, which is located on a side of the top plate away from the side plate, and a third fold is provided at a connection between the superimposed plate and the top plate; in the first usage state and the second usage state, the superimposed plate is superimposed on the side plate parallel to the deformation fold.

[0013] Optionally, the stacking plate is provided with a first connecting portion, and the side plate perpendicular to the deformation fold is provided with a second connecting portion; the first connecting portion is connected to the second connecting portion to fix the stacking plate to the side plate.

[0014] Optionally, the first connecting portion is a snap-in protrusion, and the second connecting portion is a snap-in groove; or, the first connecting portion is a snap-in groove, and the second connecting portion is a snap-in protrusion.

[0015] Optionally, there are multiple first connecting parts, and their arrangement direction is perpendicular to the deformation fold; and / or, there are multiple second connecting parts, and their arrangement direction is perpendicular to the deformation fold.

[0016] Optionally, a side wing plate is arranged between two adjacent side plates, the side wing plate is connected to one of the side plates, and a fourth fold is arranged at a connection between the side wing plate and the side plates.

[0017] Optionally, among the two adjacent side panels, the side wing panel or the side panel connected to the side wing panel is provided with a first fixing part, and the other side panel is provided with a second fixing part; in the first usage state, the first fixing part is connected to the second fixing part to fix the two adjacent side panels.

[0018] Optionally, the side panels and the bottom panel as well as the side panels and the top panel are connected by snap-fit ​​connections, fastener connections or adhesive connections.

[0019] The beneficial effects of the present invention are as follows: in a first usage state, the packaging box can be in a rectangular structure for storing products to meet the packaging needs of electronic products, and in a second usage state, the packaging box is folded toward the bottom plate around the deformation crease through the side panels, so that a V-shaped limiting groove recessed toward the bottom plate is formed between the side panels and the top panel, and the V-shaped limiting groove can be used to support the product, thereby realizing the function of supporting the use of the product, so that the packaging box has multi-functional uses, can increase the reuse rate of the packaging box, and is conducive to reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0021] Figure 1 A plan view of a packaging box provided by an embodiment of the present invention;

[0022] Figure 2 A plan view of another packaging box provided by an embodiment of the present invention;

[0023] Figure 3 A plan view of another packaging box provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of a packaging box provided by an embodiment of the present invention in a second usage state;

[0025] In the figure: 100, bottom plate; 200, top plate; 300, side plate; 310, first plate; 320, second plate; 330, deformation crease; 400, overlapping plate; 500, side wing plate; 610, first crease; 620, second crease; 630, third crease; 640, fourth crease; 710, first limiting part; 720, second limiting part; 810, first connecting part; 820, second connecting part; 910, first fixing part; 920, second fixing part. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] As the name suggests, a packaging box is a box used to package products. It can be classified by material, such as: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, PVC boxes, etc. It can also be classified by the name of the product, such as: moon cake boxes, tea boxes, wolfberry boxes, candy boxes, exquisite gift boxes, local specialty boxes, wine boxes, chocolate boxes, food, medicine and health care products boxes, food packaging boxes, tea packaging boxes, pencil cases, etc.

[0030] With the rapid development of modern industry and the continuous improvement of people's living standards, packaging boxes have been widely used in electronics, food, beverages, alcohol, tea, cigarettes, medicine, health products, cosmetics, small household appliances, clothing, toys, sporting goods and other industries and product packaging supporting industries. People's demand for packaging boxes will continue to increase. However, the increase in demand for packaging boxes has also brought about problems such as environmental protection and resource reuse.

[0031] The functions of existing packaging boxes are mainly used to ensure the safety of products during transportation and to promote sales. Most of them are only used for protection in logistics and have no other functions. In addition, ordinary packaging boxes have less novelty and interest in appearance and no styling fun. Consumers often throw away the packaging boxes directly after getting the products, resulting in a waste of resources.

[0032] Based on the above situation, the present application provides a packaging box, which can be used as a packaging box for storing and protecting products, and can also be folded into a product stand for supporting products through deformation creases, so that the packaging box has multifunctional uses, can increase the reuse rate of the packaging box, and help reduce material waste.

[0033] For details, please refer to Figure 1 to Figure 4 A packaging box provided by an embodiment of the present invention has a first usage state and a second usage state. In the first usage state, the packaging box is in a rectangular structure for storing products. The packaging box includes a bottom plate 100 and a top plate 200 arranged opposite to each other and a side plate 300 connecting the bottom plate 100 and the top plate 200 at the periphery. One of the side plates 300 is provided with a deformation crease 330, and the deformation crease 330 is parallel to the connecting edge of the side plate 300 and the bottom plate 100. In the second usage state of the packaging box, the side plate 300 is folded around the deformation crease 330 toward the bottom plate 100 to form a V-shaped limiting groove recessed toward the bottom plate 100 between the side plate 300 and the top plate 200, and the V-shaped limiting groove can be used to support the product.

[0034] Please note that Figure 1 The deformation fold 330 divides the side plate 300 into a first plate 310 and a second plate 320. The first plate 310 connects the second plate 320 and the bottom plate 100, and the second plate 320 connects the first plate 310 and the top plate 200. The length of the second plate 320 along the deformation fold 330 is greater than the length of the first plate 310 along the deformation fold 330. Please refer to Figure 4 In the second use state, the second plate 320 is folded along the deformation crease 330 toward the bottom plate 100, and the top plate 200 is driven to be folded toward the bottom plate 100, until the second plate 320 and the top plate 200 jointly form a V-shaped limit groove that can be used to support the product. Among them, the side plate 300 and the first plate 310 arranged opposite to the side plate 300 where the deformation crease 330 is located can maintain the state of the packaging box in the first use state, that is, they can maintain a vertical state, so that the angle between the second plate 320 and the top plate 200 is 90°, and the angles on both sides of the V-shaped limit groove are 90°, which is more suitable for supporting products with right angles such as mobile phones and tablets, which is conducive to improving the application range of the packaging box. In addition, when the packaging box is switched from the first use state to the second use state, since part of the side plate 300 is not involved in the product support, part of the side plate 300 can be removed according to actual needs.

[0035] In the first usage state of the present invention, the packaging box can be in a rectangular structure for storing products to meet the packaging needs of electronic products, and in the second usage state, the packaging box is folded toward the bottom plate 100 around the deformation crease 330 through the side panel 300, so that a V-shaped limiting groove recessed toward the bottom plate 100 is formed between the side panel 300 and the top panel 200, and the V-shaped limiting groove can be used to support the product, thereby realizing the function of supporting the use of the product, so that the packaging box has multi-functional uses, can improve the reuse rate of the packaging box, and is conducive to reducing material waste.

[0036] As an optional embodiment, in the first use state, the packaging box is in the shape of a rectangular structure. The rectangular structure packaging box not only has a mature processing technology, is relatively simple to produce, and has a low production cost, but also has strong versatility and is suitable for most products as a packaging protection. Of course, in other embodiments, in the first use state, the packaging box can also be in other shapes, for example, the packaging box can be in a prism structure or other three-dimensional structure that can be used as a packaging box, as long as it can meet the functions of product packaging protection and can be folded into a product stand.

[0037] See also Figure 1 to Figure 3 The side plate 300 or the top plate 200 provided with the deformation fold 330 is provided with a first limiting portion 710, and the bottom plate 100 is provided with a second limiting portion 720. In the second use state, the first limiting portion 710 cooperates with the second limiting portion 720 to fix the shape of the V-shaped limiting groove. By setting the first limiting portion 710 and the second limiting portion 720, the connection stability between the side plate 300 and the bottom plate 100 where the deformation fold 330 is located or between the top plate 200 and the bottom plate 100 can be strengthened in the second use state of the packaging box, and the shape of the V-shaped limiting groove can be reinforced to ensure that the packaging box can maintain the shape of the V-shaped limiting groove for supporting the product, realizing the function of being used as a product bracket, which is conducive to reducing the waste of resources. At the same time, the folding of the deformation fold 330 and the cooperation of the first limiting portion 710 and the second limiting portion 720 can increase the fun of the user's hands-on experience, which is conducive to improving the user's use experience.

[0038] As an optional implementation, see Continue Figure 1 to Figure 3 The first limiting part 710 is a limiting card, and the second limiting part 720 is a limiting groove. In the second use state, the limiting card is inserted into the limiting groove to form a limit; as another optional embodiment, the first limiting part 710 is a limiting groove, and the second limiting part 720 is a limiting card. In the second use state, the limiting card is inserted into the limiting groove to form a limit. The connection between the first limiting part 710 and the second limiting part 720 by using the limiting card and the limiting groove not only has the advantages of relatively simple processing and easy operation for users, but also can strengthen the connection stability between the top plate 200 and the bottom plate 100 or between the side plate 300 where the deformation fold 330 is located and the bottom plate 100 by plugging, thereby reinforcing the shape of the V-shaped limiting groove and realizing the function of the packaging box as a product holder.

[0039] On the premise that the first limiting portion 710 is a limiting card and the second limiting portion 720 is a limiting groove, please refer to Figure 1 to Figure 3The limit card is formed by separating a part of the side plate 300 or the top plate 200 from its main body. That is, the limit card is formed integrally with the side plate 300 or the top plate 200 where the deformation fold 330 is located, and the limit card separated from the main body can make it easier for users to find the limit card, so that users can more easily plug the limit card and the limit groove together to quickly form the product bracket required by the user in the packaging box, which is conducive to improving the user's use experience.

[0040] In an optional embodiment, there are multiple first limiting portions 710, and the arrangement direction thereof is perpendicular to the deformation fold 330; in another optional embodiment, there are multiple second limiting portions 720, and the arrangement direction thereof is perpendicular to the deformation fold 330; in yet another optional embodiment, there are multiple first limiting portions 710 and multiple second limiting portions 720, and the arrangement directions thereof are perpendicular to the deformation fold 330. Whether multiple first limiting portions 710 or multiple second limiting portions 720 are provided, or multiple first limiting portions 710 and multiple second limiting portions 720 are provided at the same time, the user's need to adjust the angle between the second board and the top plate 200 according to actual conditions can be met, and the user's need to select product brackets with different inclination angles according to actual needs can be met. While improving the user's use experience, the applicable scope of the packaging box can also be increased, thereby increasing the reuse rate of the packaging box, which is conducive to reducing the waste of resources.

[0041] In one embodiment, see Figure 1 to Figure 4 The packaging box is folded from a flat cardboard. On the one hand, the packaging box folded from a flat cardboard has the advantages of mature production technology and low processing cost. On the other hand, whether it is folding the flat cardboard into a packaging box in the first use state, or switching the packaging box from the first use state to the second use state, or directly folding the flat cardboard into the packaging box in the second use state, the operation is very simple, which greatly reduces the user's operating difficulty. Under the premise of easy operation by the user, the packaging box meets the user's multi-functional use needs, can improve the reuse rate of the packaging box, and is conducive to reducing material waste.

[0042] In other embodiments, the side panels 300 and the bottom panel 100 and the side panels 300 and the top panel 200 may also be connected by snaps, fasteners, or adhesives. Regardless of whether snaps, fasteners, or adhesives are used to connect the side panels 300 and the bottom panel 100 or the top panel 200, the top panel 200, the bottom panel 100, and the side panels 300 may be combined to form a packaging box in the first use state to store products, and when part of the side panels 300 are removed, the packaging box may be switched from the first use state to the second use state, thereby realizing the function of being used as a product stand.

[0043] If the box is folded from a flat cardboard, please refer to Figure 1 to Figure 3 Each side panel 300 is connected to the four sides of the bottom panel 100 respectively, and a first fold 610 is provided at the connection between each side panel 300 and the bottom panel 100. The top panel 200 is connected to the side panel 300 provided with a deformation fold 330, and a second fold 620 is provided at the connection. The first crease 610 can be used to enclose the side panels 300 together above the bottom panel 100, and then combined with the second crease 620, the top panel 200 can be folded to the top of the side panels 300, so that the bottom panel 100, the top panel 200 and the four side panels 300 together form a rectangular packaging box, which meets the use requirements of folding the flat cardboard into a packaging box in the first use state. On this basis, the second panel 320 is folded toward the bottom panel 100 through the deformation crease 330, and the top panel 200 is driven to be folded toward the bottom panel 100 at the same time, so that the second panel 320 and the top panel 200 together form a V-shaped limiting groove that can be used to support the product, which can also meet the use requirements of folding the flat cardboard into the packaging box in the second use state, thereby realizing the multifunctional use of the packaging box.

[0044] In one embodiment, see Figure 2 The top plate 200 is connected with a superimposed plate 400, which is located on the side of the top plate 200 away from the side plate 300. A third fold 630 is provided at the connection between the superimposed plate 400 and the top plate 200. In the first use state and the second use state, the superimposed plate 400 is superimposed on the side plate 300 parallel to the deformation fold 330. The provision of the superimposed plate 400 can not only strengthen the connection between the top plate 200 and the side plate 300 opposite to the side plate 300 where the deformation fold 330 is located, ensuring that the packaging box can store and protect the product in a relatively closed state, avoiding the situation where the product is directly exposed to the outside and easily damaged by external impact during transportation, but also the superimposed plate 400 can be used as an opening component for the user to open the packaging box, which helps the user to quickly open the packaging box to get the desired product, thereby improving the user's experience of opening the packaging box.

[0045] If the stacking plate 400 is provided, please continue to refer to Figure 2 The stacking plate 400 is provided with a first connection portion 810, and the side plate 300 perpendicular to the deformation fold 330 is provided with a second connection portion 820, and the first connection portion 810 and the second connection portion 820 are connected to fix the stacking plate 400 to the side plate 300. The first connection portion 810 and the second connection portion 820 can be used as connecting parts for fixed connection between the stacking plate 400 and the side plate 300. While satisfying the requirement of stacking the stacking plate 400 on the side plate 300, the first connection portion 810 and the second connection portion 820 can ensure the connection stability between the stacking plate 400 and the side plate 300, so that the packaging box can better seal and protect the products located therein.

[0046] Under the premise of providing the superimposed plate 400, as an optional embodiment, the first connection part 810 is a snap-on protrusion, and the second connection part 820 is a snap-on slot; as another optional embodiment, the first connection part 810 is a snap-on slot, and the second connection part 820 is a snap-on protrusion. Using the snap-on protrusion and the snap-on slot as the connection method between the superimposed plate 400 and the side plate 300 has the advantages of relatively simple processing and easy operation for users, and can also ensure the connection stability between the superimposed plate 400 and the side plate 300 by snap-fitting, and at the same time, it can also make the packaging box have the advantages of being detachable and reusable, which is conducive to improving the reuse rate of the packaging box, thereby reducing the waste of resources.

[0047] On the premise that the overlapping plate 400 is provided, in an optional embodiment, there are multiple first connection parts 810, and the arrangement direction thereof is perpendicular to the deformation crease 330; in another optional embodiment, there are multiple second connection parts 820, and the arrangement direction thereof is perpendicular to the deformation crease 330; in another optional embodiment, there are multiple first connection parts 810 and second connection parts 820, and the respective arrangement directions are perpendicular to the deformation crease 330. Whether multiple first connection parts 810 or multiple second connection parts 820 are set, or multiple first connection parts 810 and multiple second connection parts 820 are set at the same time, in the second usage state, part of the overlapping plates 400 and the side plates 300 can be used together as the right-angled sides of the triangular structure where the top plate 200 is located, thereby increasing the height of the connection between the top plate 200 and the overlapping plates 400, and indirectly increasing the height of the V-shaped limit groove. The angle between the top plate 200 and the second plate 320 will also change, thereby satisfying the user's need to adjust the height and inclination of the product bracket according to actual conditions. While improving the user's usage experience, it can also increase the scope of application of the packaging box, thereby increasing the reuse rate of the packaging box, which is conducive to reducing resource waste.

[0048] In one embodiment, see Figure 3 A side wing plate 500 is provided between two adjacent side plates 300, the side wing plate 500 is connected to one of the side plates 300, and a fourth fold 640 is provided at the connection between the side wing plate 500 and the side plate 300. The side wing plate 500 can be provided to seal the gap between the two adjacent side plates 300 when the packaging box is in the first use state, thereby enhancing the airtightness of the packaging box in the first use state, ensuring the packaging box's storage and protection of the internal products, and at the same time enhancing the strength of the side plate 300, which is conducive to reducing the situation where the packaging box is punctured.

[0049] See also Figure 3, of the two adjacent side panels 300, the side wing panel 500 or the side panel 300 connected to the side wing panel 500 is provided with a first fixing portion 910, and the other side panel 300 is provided with a second fixing portion 920. In the first use state, the first fixing portion 910 is connected to the second fixing portion 920 to fix the two adjacent side panels 300. The provision of the first fixing portion 910 and the second fixing portion 920 can strengthen the connection strength of the two adjacent side panels 300, and can further strengthen the sealing between the two adjacent side panels 300, thereby greatly improving the reliability of the packaging box.

[0050] It should be noted that the first fixing portion 910 and the second fixing portion 920 can also be connected in a manner of a snap-on protrusion and a snap-on slot, that is, the first fixing portion 910 is a snap-on protrusion and the second fixing portion 920 is a snap-on slot, or the first fixing portion 910 is a snap-on slot and the second fixing portion 920 is a snap-on protrusion. The snap-on protrusion and the snap-on slot are used to snap two adjacent side panels 300 together, which can not only strengthen the connection between the two adjacent side panels 300, but also make the two adjacent side panels 300 detachable, so that the packaging box has the advantages of being detachable and reusable. The side panel 300 perpendicular to the deformation crease 330 may be provided with a second fixing portion 920 corresponding to the first fixing portion 910 of the adjacent side panel 300 and a second connecting portion 820 corresponding to the first connecting portion 810 of the overlapping plate 400, so as to satisfy both the connection and fixation between the side panel 300 perpendicular to the deformation crease 330 and the adjacent side panel 300 and the connection and fixation between the side panel 300 perpendicular to the deformation crease 330 and the overlapping plate 400.

[0051] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0053] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0054] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A packaging box, characterized in that: having a first use state and a second use state; In the first use state, the packaging box is a rectangular structure for storing products, comprising a bottom plate (100) and a top plate (200) arranged opposite to each other, and a side plate (300) connecting the bottom plate (100) and the top plate (200) at the periphery; One of the side panels (300) is provided with a deformation fold (330), and the deformation fold (330) is parallel to the connecting edge of the side panel (300) and the bottom panel (100); In the second usage state, the side panel (300) is folded around the deformation fold (330) toward the bottom panel (100), so that a V-shaped limiting groove recessed toward the bottom panel (100) is formed between the side panel (300) and the top panel (200), and the V-shaped limiting groove can be used to support the product.

2. The packaging box according to claim 1, characterized in that: The side plate (300) or the top plate (200) provided with the deformation fold (330) is provided with a first limiting portion (710), and the bottom plate (100) is provided with a second limiting portion (720). In the second use state, the first limiting portion (710) cooperates with the second limiting portion (720) to fix the shape of the V-shaped limiting groove.

3. The packaging box according to claim 2, characterized in that: The first limiting portion (710) is a limiting card, and the second limiting portion (720) is a limiting slot; or, the first limiting portion (710) is a limiting slot, and the second limiting portion (720) is a limiting card; In the second use state, the limit card is inserted into the limit slot to form a limit.

4. The packaging box according to claim 3, characterized in that: The limiting card is formed by separating a part of the side plate (300) or the top plate (200) from its main body.

5. The packaging box according to claim 2, characterized in that: There are multiple first limiting portions (710), and their arrangement direction is perpendicular to the deformation fold (330); and / or there are multiple second limiting portions (720), and their arrangement direction is perpendicular to the deformation fold (330).

6. The packaging box according to any one of claims 1 to 5, characterized in that: The packaging box is formed by folding a flat cardboard.

7. The packaging box according to claim 6, characterized in that: Each of the side panels (300) is respectively connected to four side edges of the bottom panel (100), and each of the side panels (300) and the bottom panel (100) is provided with a first fold (610) at a connection point; The top plate (200) is connected to the side plate (300) provided with a deformation fold (330), and a second fold (620) is provided at the connection.

8. The packaging box according to claim 7, characterized in that: The top plate (200) is connected to a laminated plate (400), the laminated plate (400) is located on a side of the top plate (200) away from the side plate (300), and a third fold (630) is provided at a connection between the laminated plate (400) and the top plate (200); In the first use state and the second use state, the stacking plate (400) is stacked on the side plate (300) parallel to the deformation fold (330).

9. The packaging box according to claim 8, characterized in that: The stacked plate (400) is provided with a first connecting portion (810), and the side plate (300) perpendicular to the deformation fold (330) is provided with a second connecting portion (820); The first connection portion (810) is connected to the second connection portion (820) to fix the composite plate (400) to the side plate (300).

10. The packaging box according to claim 9, characterized in that: The first connecting portion (810) is a snap-fitting protrusion, and the second connecting portion (820) is a snap-fitting groove; or, the first connecting portion (810) is a snap-fitting groove, and the second connecting portion (820) is a snap-fitting protrusion.

11. The packaging box according to claim 9, characterized in that: There are multiple first connection parts (810), and their arrangement direction is perpendicular to the deformation fold (330); and / or there are multiple second connection parts (820), and their arrangement direction is perpendicular to the deformation fold (330).

12. The packaging box according to claim 1, characterized in that: A side wing plate (500) is arranged between two adjacent side plates (300), the side wing plate (500) is connected to one of the side plates (300), and a fourth fold (640) is arranged at the connection between the side wing plate (500) and the side plate (300).

13. The packaging box according to claim 12, characterized in that: Of the two adjacent side panels (300), the side wing panel (500) or the side panel (300) connected to the side wing panel (500) is provided with a first fixing portion (910), and the other side panel (300) is provided with a second fixing portion (920); In the first use state, the first fixing portion (910) is connected to the second fixing portion (920) to fix two adjacent side panels (300).

14. The packaging box according to any one of claims 1 to 5, characterized in that: The side panel (300) and the bottom panel (100), as well as the side panel (300) and the top panel (200), are connected by snap-fit ​​connection, fastener connection or adhesive bonding.

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