Packaging box, packaging box blank and commodity

Abstract

The utility model provides a packing box, packing box blank and commodity, including first end panel, second end panel and a plurality of side panel, first end panel and / or second end panel include: cover plate, first flip, self-locking piece and second flip that are connected to different side panel respectively; a self-locking opening is formed in the cover plate; the self-locking piece comprises a spring bolt and a lock body, one side edge of the lock body is connected with the side panel, the other opposite side edge of the lock body is connected with the spring bolt, the spring bolt comprises a tongue, and the side edge of the tongue is connected with a self-locking part; one side edge of the first flip cover and one side edge of the second flip cover are located on the side edge, close to one side of the self-locking piece, of the self-locking opening; the tongue is inserted into the packaging box through the self-locking opening and limited in the packaging box through the self-locking part. According to the utility model, the lock tongue can be damaged when the self-locking plate is pulled out violently, so that the trace that the packaging box is opened abnormally can be effectively displayed.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a packaging box, a packaging box blank, and a product. Background Technology

[0002] In existing technologies, there are various types of one-time opening packaging boxes, but most of them only target the lid. For example, the anti-theft easy-tear zipper packaging box disclosed in patent document CN209241554U. That is to say, existing technologies have a one-time opening structure, such as an easy-tear line, at the lid of the packaging box used to open the box normally. When opening the box normally, this one-time opening structure needs to be broken, so that it can be clearly shown whether the lid of the packaging box has been opened.

[0003] However, existing technology neglects the protection design for the other side of the packaging box (i.e., the bottom of the box), simply by folding multiple sub-panels together. The box's flexibility allows it to be easily bent, opened, and folded back to its original shape, making it difficult for consumers to detect whether the bottom of the box has been opened. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a packaging box, a packaging box blank, and a product.

[0005] According to the present invention, a packaging box includes a first end panel, a second end panel, and a plurality of side panels. The first end panel and / or the second end panel include: a cover plate, a first flip cover, a self-locking piece, and a second flip cover respectively connected to different side panels.

[0006] The cover plate is provided with a self-locking opening;

[0007] The self-locking plate includes a latch and a lock body. One side of the lock body is connected to a side panel, and the opposite side is connected to the latch. The latch includes a tongue, and a self-locking part is connected to the side of the tongue.

[0008] One side of the first flip cover is located on the side of the self-locking opening near the self-locking plate;

[0009] One side of the second flip cover is located on the side of the self-locking opening near the self-locking plate;

[0010] The first flip cover and the second flip cover are located on the outside or inside of the cover plate, the lock body is located on the outside of the first flip cover, the second flip cover and the cover plate, and the tongue is inserted into the packaging box through the self-locking port and is limited in the packaging box by the self-locking part.

[0011] Preferably, the self-locking opening is located in the middle of the first end face area and / or the second end face area of ​​the packaging box.

[0012] Preferably, the self-locking opening is located on the centerline of the first end face area and / or the second end face area of ​​the packaging box.

[0013] Preferably, the first flip cover includes a first cover body and a first abutting portion connected together. The first cover body and the first abutting portion are respectively connected to the side panel. The first abutting portion is located between the self-locking opening and the free end of the cover plate, and is used to abut against the self-locking portion when the tongue is pulled outward. The first cover body is located at a position away from the free end of the cover plate.

[0014] Preferably, the side of the first abutting portion near the self-locking opening is flush with the side of the self-locking opening;

[0015] And / or, the free end of the first cover gradually narrows towards the corresponding connected side panel from a position close to and away from the first abutment portion;

[0016] And / or, the surface of the first contact portion is provided with an adhesive layer.

[0017] Preferably, the second flap includes a second cover body and a second abutment portion connected together. The second cover body and the second abutment portion are respectively connected to the side panel. The second abutment portion is located between the self-locking opening and the free end of the cover plate, and is used to abut against the self-locking portion when the tongue is pulled outward. The second cover body is located at a position away from the free end of the cover plate.

[0018] Preferably, the side of the second abutting portion near the self-locking opening is flush with the side of the self-locking opening;

[0019] And / or, the free end of the second cover gradually narrows towards the corresponding connected side panel from a position close to and away from the second abutment portion;

[0020] And / or, the surface of the second contact portion is provided with an adhesive layer.

[0021] Preferably, the width of the tongue is less than or equal to the width of the self-locking opening, and the width of the locking tongue is greater than the width of the self-locking opening;

[0022] And / or, the two sides of the lock body gradually narrow inward from the position where it connects to the side panel to the position where it connects to the bolt;

[0023] And / or, the number of the self-locking parts is two, the two self-locking parts being a first self-locking part and a second self-locking part, respectively connected to two opposite sides of the tongue;

[0024] And / or, the cover plate and the self-locking plate are respectively connected to two opposite side panels, and the first flip cover and the second flip cover are respectively connected to two other opposite side panels;

[0025] And / or, the cover can cover the first end face area and / or the second end face area of ​​the packaging box;

[0026] And / or, when the number of the self-locking part is one, a chamfer or rounded corner is provided at the connection between the self-locking part and the tongue at the free end of the latch; when the number of the self-locking parts is multiple, a chamfer or rounded corner is provided at the connection between one or more of the self-locking parts and the tongue at the free end of the latch.

[0027] And / or, the connection between the self-locking part and the tongue has a fold line;

[0028] And / or, it also includes a connecting plate attached to a side panel at one end for connection to a side panel at the other end;

[0029] And / or, the first end panel and the second end panel are respectively the top and bottom of the packaging box.

[0030] Preferably, one of the first end panel and the second end panel includes a plurality of sub-panels respectively connected to different side panels, which are closed by means of adhesive bonding between two or more sub-panels.

[0031] Preferably, anti-counterfeiting labels are attached to both sides of the gap between the sub-panel and the adjacent side panel;

[0032] And / or, the sub-panel is provided with an easy-tear line and / or an easy-tear opening.

[0033] Preferably, an anti-counterfeiting information layer is attached to the surface of any one or more of the first end panel, the second end panel, and the plurality of side panels.

[0034] Preferably, the anti-counterfeiting information layer includes any one or more of the following: micro-nano optical anti-counterfeiting structure, magnetochromic anti-counterfeiting structure, optical color-changing anti-counterfeiting structure, magnetic resonance anti-counterfeiting structure, or ink anti-counterfeiting structure.

[0035] According to the present invention, a packaging box blank includes a plurality of side panels connected in sequence, and a cover plate, a first flip cover, a self-locking piece and a second flip cover are respectively connected to one or both sides of the plurality of side panels.

[0036] The cover plate is provided with a self-locking opening;

[0037] The self-locking plate includes a latch and a lock body. One side of the lock body is connected to a side panel, and the opposite side is connected to the latch. The latch includes a tongue, and a self-locking part is connected to the side of the tongue.

[0038] The packaging box blank can be folded and closed to form the packaging box.

[0039] Preferably, a fold line is provided between the bolt and the lock body;

[0040] And / or, a fold line is provided between the tongue and the self-locking part;

[0041] And / or, it also includes a connecting plate attached to a side panel at one end for connection to a side panel at the other end;

[0042] And / or, the cover plate and the self-locking piece are respectively connected to two non-adjacent side panels, and the first flip cover and the second flip cover are respectively connected to two non-adjacent side panels;

[0043] And / or, there is a fold line between two adjacent side panels;

[0044] And / or, multiple side panels have fold lines between them and the connected cover, first flip cover, self-locking tab and second flip cover;

[0045] And / or, the width of the tongue is less than or equal to the width of the self-locking opening, and the width of the locking tongue is greater than the width of the self-locking opening;

[0046] And / or, the two sides of the lock body gradually narrow inward from the position where it connects to the side panel to the position where it connects to the bolt;

[0047] And / or, the number of the self-locking parts is two, the two self-locking parts being a first self-locking part and a second self-locking part, respectively connected to two opposite sides of the tongue;

[0048] And / or, when the number of the self-locking part is one, a chamfer or rounded corner is provided at the connection between the self-locking part and the tongue at the free end of the latch; when the number of the self-locking parts is multiple, a chamfer or rounded corner is provided at the connection between one or more of the self-locking parts and the tongue at the free end of the latch.

[0049] And / or, the connection between the self-locking part and the tongue has a fold line;

[0050] And / or, multiple sub-panels are connected to the side edges that are connected in series on one side of multiple side panels;

[0051] And / or, the cover plate, the first flap, the self-locking tab and the second flap are connected to the side of a plurality of side panels connected in series on one side, and can be folded to form the top and / or bottom of the packaging box.

[0052] According to the present invention, a product includes a product body and a packaging box, wherein the product body is located inside the packaging box.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] This invention involves folding the self-locking part and inserting it into the self-locking opening along with the tongue. Under the restoring elasticity of the material itself, the self-locking part can be reset and unfolded at a certain angle, thus completing the self-locking inside the cardboard box. When the product is placed in the packaging box, gravity will compress the self-locking part, making it unfold more fully. This prevents damage when the self-locking piece is forcibly pulled out, effectively showing signs of abnormal opening of the packaging box. The corresponding end face cannot be opened without damaging the packaging box, ensuring the safety of the product inside.

[0055] When the self-locking piece is forcibly pulled out, the self-locking part will simultaneously abut against the self-locking opening, the first flip cover, and the second flip cover. The self-locking opening, the first flip cover, and the second flip cover overlap each other and are flush on one side. Therefore, the structural strength is stronger than that of the locking tongue. This makes the locking tongue more easily damaged and unable to self-lock when it is forcibly pulled out by external force, thus indicating that the packaging box has been opened abnormally and further reducing the possibility of the packaging box being forcibly opened. Attached Figure Description

[0056] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0057] Figure 1 This is a schematic diagram of the end face of the packaging box in an unfolded state according to an embodiment of the present invention;

[0058] Figure 2 This is a schematic diagram of the lid of the packaging box of this utility model in the folded-closed state;

[0059] Figure 3 This is a schematic diagram of the first and second flaps of the packaging box of this utility model in the folded and closed state;

[0060] Figure 4 The diagram shows the first and second self-locking parts of the packaging box of this utility model in the folded state.

[0061] Figure 5 This is a schematic diagram of the inner side of the self-locking tab of the packaging box of this utility model in the folded and closed state;

[0062] Figure 6 This is a schematic diagram of the outer side of the self-locking tab of the packaging box of this utility model in the folded and closed state;

[0063] Figure 7 for Figure 3 A magnified view of part A in the image;

[0064] Figure 8 A schematic diagram of the contact surface formed by the self-locking opening, the first contact part, and the second contact part;

[0065] Figure 9 This is a schematic diagram of the blank material of the packaging box of this utility model before folding and splicing.

[0066] In the diagram, 1-box body, 100-fold line, 101-side panel, 102-connecting plate, 2-cover plate, 21-self-locking opening, 3-first flip cover, 31-first cover body, 32-first abutting part, 4-second flip cover, 41-second cover body, 42-second abutting part, 5-self-locking piece, 51-locking tongue, 511-tongue, 512-first self-locking part, 513-second self-locking part, 52 lock body. Detailed Implementation

[0067] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0068] like Figure 1 As shown, the present invention provides a packaging box including a first end panel, a second end panel, and multiple side panels. The first end panel and the second end panel are the top and bottom panels of the packaging box, respectively. Preferably, there are four side panels, serving as the front, rear, left, and right sides of the packaging box. The top and / or bottom panels of the packaging box include a cover plate 2, a first flip cover 3, a self-locking piece 5, and a second flip cover 4, respectively connected to the different side panels. Preferably, the cover plate 2, the first flip cover 3, the self-locking piece 5, and the second flip cover 4 of the present invention constitute the bottom panel of the packaging box. The top panel serves as the normal opening panel of the packaging box and can use any existing structural design, or it can adopt the same structural design as the bottom panel.

[0069] like Figure 1 and Figure 2As shown, the cover plate 2 is connected to one side panel of the packaging box, and the free end of the cover plate 2 is folded towards the opposite side panel. A self-locking opening 21 is provided on the cover plate 2. In this embodiment, the long side of the self-locking opening 21 is adapted to the width of the locking tongue 51 on the self-locking piece 5, and the short side of the self-locking opening 21 is adapted to the thickness of the locking tongue 51 plus the thickness of the self-locking part. The self-locking opening 21 is located in the middle of the first end face area and / or the second end face area of ​​the packaging box, preferably at the center line. The cover plate 2 preferably covers the first end face area and / or the second end face area of ​​the packaging box.

[0070] like Figure 1 and Figure 3 As shown, the first flip cover 3 and the second flip cover 4 are respectively connected to two opposite side panels, as... Figure 7 As shown, in the folded state of the first flip cover 3 and the second flip cover 4, one side of the first flip cover 3 is located at the side of the self-locking opening 21 near the self-locking piece 5, and one side of the second flip cover 4 is located at the side of the self-locking opening 21 near the self-locking piece 5. Specifically, the first flip cover 3 includes a connected first cover body 31 and a first abutting part 32. The first cover body 31 and the first abutting part 32 are respectively connected to one side panel. The first abutting part 32 is located between the self-locking opening 21 and the free end of the cover plate 2. One side of the first abutting part 32 is located at the side of the self-locking opening 21 near the self-locking piece 5, and the first cover body 31 is located away from the free end of the cover plate 2. Preferably, as Figure 8 As shown, the first abutment portion 32 has its side edge near the self-locking opening 21 flush with the side edge of the self-locking opening 21, forming a larger abutment surface as shown in the shaded area. This surface is used to abut against the self-locking part when the self-locking piece is forcibly pulled out. Similarly, the second flip cover 4 includes a connected second cover body 41 and abutment portion 42. The second cover body 41 and the second abutment portion 42 are respectively connected to the side panel. The second abutment portion 42 is located between the self-locking opening 21 and the free end of the cover plate 2. One side edge of the second abutment portion 42 is located on the side edge of the self-locking opening 21 near the self-locking piece 5, and the second cover body 41 is located away from the free end of the cover plate 2. The side edge of the second abutment portion 42 near the self-locking opening 21 is flush with the side edge of the self-locking opening 21, forming a larger abutment surface as shown in the shaded area. This surface is used to abut against the self-locking part when the self-locking piece is forcibly pulled out. The advantage of this is that when the self-locking part is in contact with the side of the self-locking opening 21, it will simultaneously contact the side of the first contact part 32 and the second contact part 42, which serves to thicken and reinforce the contact structure at the self-locking opening 21. Since the structural strength of the self-locking piece 5 at the contact point is not as strong as that at the self-locking opening 21, the locking tongue 51 will be torn and damaged when the self-locking piece 5 is forcibly pulled out.

[0071] like Figure 3As shown, in order to prevent the first cover 3 and the second cover 4 from blocking the self-locking opening 21 when they are folded, thus preventing the self-locking piece 5 from being inserted into the self-locking opening 21, in this embodiment, the first cover 31 and the second cover 41 are preferably designed with bevels, that is, the free end of the first cover 31 gradually narrows towards the corresponding connected side panel from the position close to and away from the first abutment 32, and the free end of the second cover 41 gradually narrows towards the corresponding connected side panel from the position close to and away from the second abutment 42.

[0072] like Figure 1 and Figure 4 As shown, the self-locking piece 5 includes a latch 51 and a lock body 52. ​​One side of the lock body 52 is connected to the side panel opposite to the side panel where the cover plate 2 is located, and the other side is connected to the latch 51. The latch 51 includes a tongue 511, and a self-locking part is connected to the side of the tongue 511. Considering the stability of the self-locking, there are two self-locking parts in this embodiment: a first self-locking part 512 and a second self-locking part 513, which are respectively connected to the two opposite sides of the tongue 511. The self-locking piece 5 can be inserted into the self-locking opening 21 when the self-locking part is folded into the latch 51. Then, under the restoring elasticity of the material itself, it is reset at a certain angle, thereby limiting itself within the self-locking opening 21 to complete the self-locking. When the product is placed in the packaging box, the self-locking part will be further unfolded and reset under the action of the product's gravity, achieving a more reliable self-locking. The state of the self-locking piece 5 after being inserted into the self-locking opening 21 is as follows. Figure 5 and Figure 6 As shown. Specifically, the width of the latch 511 is less than or equal to the width of the self-locking opening 21, so that it can be inserted into the self-locking opening 21 when the self-locking part is folded up. The overall width of the latch 51 (width of the self-locking part + width of the latch 511) is greater than the width of the self-locking opening 21, so as to achieve self-locking. The two sides of the lock body 52 gradually narrow inward from the position connecting the side panel to the position connecting the latch 51, forming symmetrical side lines with the bevel design of the first cover 31 and the second cover 41, making the end face more aesthetically pleasing.

[0073] like Figure 2As shown, to facilitate the insertion of the latch into the self-locking slot 21, a fold line is provided between the latch 51 and the lock body 52. ​​The latch 51 can be folded before insertion to prevent the lock body 52 from being folded and leaving marks. To facilitate the folding and damage of the self-locking part, a fold line 100 is provided at the connection between the self-locking part and the latch 511. Chamfers or rounded corners are provided at the two connections between the self-locking part and the latch 511 at the free end of the latch 51, forming two horn-like structures. Because the connection area between the self-locking part and the latch 511 is reduced by the chamfer, the structural strength is lowered. When the self-locking piece 5 is forcibly pulled out, the self-locking part will bend forward under force at the chamfered position and be torn along the fold line 100. Furthermore, the chamfer design also has the advantage that, in the folded state of the self-locking part, the latch 51 forms a transition structure that is narrow at the front and wide at the back, making it easier to insert into the self-locking slot 21. In other embodiments, the chamfer or rounded corner may be provided only at the connection between one of the first self-locking part 512 and the second self-locking part 513 and the tongue 511, while the other part is not provided. The advantage of this is that when the self-locking piece 5 is forcibly pulled out, the part with the chamfer or rounded corner will tear first before the part without the chamfer or rounded corner, resulting in an inconsistent force state between the first self-locking part 512 and the second self-locking part 513. This allows the locking tongue 51 to be torn irregularly, making it easier to observe whether the packaging box has been opened abnormally.

[0074] like Figure 3 As shown, in this embodiment, when the end face is closed, the cover plate 2 is folded open first, and the first flap 3 and the second flap 4 fold over and cover the outside of the cover plate 2. The locking body 52 is located outside the first flap 3 and the second flap 4, and the tongue 511 is inserted into the packaging box through the self-locking slot 21 and is limited inside the packaging box by the self-locking part. The surfaces of the first abutting part 32 and the second abutting part 42 are provided with an adhesive layer, which can be bonded and fixed to the cover plate 2 and the self-locking piece 5. In this way, the end panel of the packaging box is effectively closed, and there is no gap on the side that leads directly into the inside of the packaging box, avoiding the problem of seeing the internal goods by using the side panels and end panels on both sides of the flexible opening gap of the packaging box material itself. In other embodiments, the first flap 3 and the second flap 4 can be folded first, with the cover plate 2 folded over the first flap 3 and the second flap 4, and then bonded and fixed to the first flap 3, the second flap 4, and the self-locking piece 5 respectively by the adhesive layers on both sides of the cover plate 2. In other embodiments, the first flap 3 or the second flap 4 can be folded first, with the cover plate 2 folded over the first flap 3 / second flap 4, then the second flap 4 / first flap 3 is folded, and finally the self-locking piece 5 is folded. This utility model does not limit this. In this utility model, it is preferable to close the cover plate 2 first, and then close the first flap 3 and the second flap 4. The advantage of doing so is that it further increases the difficulty of cutting open the adhesive surface from the gap between the end face and the side to see the goods inside the box. At the same time, the side lines of the exposed parts of the first flap 3 and the second flap 4 are symmetrical with the side lines of the self-locking piece 5, which is more aesthetically pleasing.

[0075] In other embodiments, the cover plate 2, the first flip cover 3, the self-locking piece 5, and the second flip cover 4 can serve only as the bottom / top panel of the packaging box. The top / bottom panel serves as the normal opening surface of the packaging box, and multiple sub-panels connected to different side panels are closed using a conventional method of mutual adhesion. Simultaneously, anti-counterfeiting labels are attached to both sides of the gap between the sub-panel and the adjacent side panel to prevent tearing the sub-panel from the gap. An easy-tear line or easy-tear opening is provided on the sub-panel as a one-time opening structure. When the box lid is opened normally, the sub-panel is damaged through the easy-tear line or easy-tear opening. The easy-tear line and easy-tear opening can also coexist, with the easy-tear opening designed at the end of the easy-tear line for easy gripping.

[0076] To further enhance the anti-counterfeiting and aesthetic effects of the packaging box, in other embodiments, an anti-counterfeiting information layer may be attached to any one or more of the surfaces of the first end panel, the second end panel, and multiple side panels of the packaging box. The anti-counterfeiting information layer may be any one or more of the following: micro-nano optical anti-counterfeiting structure, magnetochromic anti-counterfeiting structure, optical color-changing anti-counterfeiting structure, magnetic resonance anti-counterfeiting structure, or ink anti-counterfeiting structure.

[0077] like Figure 9 As shown, this utility model also provides a packaging box blank capable of being folded and closed into the aforementioned packaging box, comprising a connecting plate 102 and a plurality of side panels 101 connected in sequence. The aforementioned cover plate 2, first flap 3, self-locking piece 5, and second flap 4 are respectively connected to the connected side edges of one side of the plurality of side panels 101. The cover plate 2 and self-locking piece 5 are respectively connected to two non-adjacent side panels 101, and the first flap 3 and second flap 4 are respectively connected to two non-adjacent side panels 101. A plurality of sub-panels are respectively connected to the connected side edges, and are fixed by adhesive after being folded and closed. In other embodiments, the aforementioned cover plate 2, first flap 3, self-locking piece 5, and second flap 4 structure can also be used for closing on the connected side edges; this utility model does not limit this.

[0078] Folding lines 100 are provided between the connecting plate 102, multiple side panels 101, cover plate 2, first flip cover 3, self-locking piece 5, and second flip cover 4. Another set of cover plates 2, first flip covers 3, self-locking pieces 5, and second flip covers 4 can be connected to opposite sides of the multiple side panels 101. Alternatively, they can be connected to existing sub-panels and their ends can be closed by mutual bonding. This invention does not impose any limitations on this aspect.

[0079] The cover plate 2 has a self-locking opening 21. The self-locking plate 5 includes a latch 51 and a lock body 52, with a fold line 100 between them. One side of the lock body 52 is connected to a side panel, and the opposite side is connected to the latch 51. The latch 51 includes a tongue 511, and a self-locking part is connected to the side of the tongue 511. A fold line 100 is provided between the tongue 511 and the self-locking part. In this embodiment, the long side of the self-locking opening 21 is adapted to the width of the latch 51 on the self-locking plate 5, and the short side of the self-locking opening 21 is adapted to the thickness of the latch 51 plus the thickness of the self-locking part. Considering the stability of the self-locking, the self-locking part in this embodiment is designed as a first self-locking part 512 and a second self-locking part 513, which are respectively connected to the two opposite sides of the tongue 511. The self-locking piece 5, with its self-locking part folded into the latch 51, can be inserted into the self-locking slot 21. Then, under the elasticity of the material itself, it resets at a certain angle, thus confining itself within the packaging box. When goods are placed inside the packaging box, the self-locking part will further unfold and reset under the weight of the goods, achieving a more reliable self-locking. The state of the self-locking piece 5 after being inserted into the self-locking slot 21 is as follows... Figure 5 and Figure 6 As shown. Specifically, the width of the latch 511 is less than or equal to the width of the self-locking opening 21, so that it can be inserted into the self-locking opening 21 when the self-locking part is folded up. The overall width of the latch 51 (width of the self-locking part + width of the latch 511) is greater than the width of the self-locking opening 21, so as to achieve self-locking. The two sides of the lock body 52 gradually narrow inward from the position connecting the side panel to the position connecting the latch 51, forming symmetrical side lines with the bevel design of the first cover 31 and the second cover 41, making the end face more aesthetically pleasing.

[0080] In the folded state, the self-locking opening 21 is located in the middle of the first and / or second end face areas of the packaging box, preferably at the center line. The cover 2 preferably covers the first and / or second end face areas of the packaging box. Figure 1 and Figure 3 As shown, the first flip cover 3 and the second flip cover 4 are respectively connected to two opposite side panels, as... Figure 7 As shown, in the folded state of the first flip cover 3 and the second flip cover 4, one side of the first flip cover 3 is located at the side of the self-locking opening 21 near the self-locking piece 5, and one side of the second flip cover 4 is located at the side of the self-locking opening 21 near the self-locking piece 5. Specifically, the first flip cover 3 includes a connected first cover body 31 and a first abutting part 32. The first cover body 31 and the first abutting part 32 are respectively connected to one side panel. The first abutting part 32 is located between the self-locking opening 21 and the free end of the cover plate 2. One side of the first abutting part 32 is located at the side of the self-locking opening 21 near the self-locking piece 5, and the first cover body 31 is located away from the free end of the cover plate 2. Preferably, as Figure 8As shown, the first abutment portion 32 has its side edge near the self-locking opening 21 flush with the side edge of the self-locking opening 21, forming a larger abutment surface as shown in the shaded area. This surface is used to abut against the self-locking part when the self-locking piece 5 is forcibly pulled out. Similarly, the second flip cover 4 includes a connected second cover body 41 and abutment portion 42. The second cover body 41 and the second abutment portion 42 are respectively connected to the side panel. The second abutment portion 42 is located between the self-locking opening 21 and the free end of the cover plate 2. One side of the second abutment portion 42 is located on the side edge of the self-locking opening 21 near the self-locking piece 5, and the second cover body 41 is located away from the free end of the cover plate 2. The side edge of the second abutment portion 42 near the self-locking opening 21 is flush with the side edge of the self-locking opening 21, forming a larger abutment surface as shown in the shaded area. This surface is used to abut against the self-locking part when the self-locking piece 5 is forcibly pulled out. The advantage of this is that when the self-locking part is in contact with the side of the self-locking opening 21, it will simultaneously contact the side of the first contact part 32 and the second contact part 42, which serves to thicken and reinforce the contact structure at the self-locking opening 21. Since the structural strength of the self-locking piece 5 at the contact point is not as strong as that at the self-locking opening 21, the locking tongue 51 will be torn and damaged when the self-locking piece 5 is forcibly pulled out.

[0081] like Figure 3 As shown, in order to prevent the first cover 3 and the second cover 4 from blocking the self-locking opening 21 when they are folded, thus preventing the self-locking piece 5 from being inserted into the self-locking opening 21, in this embodiment, the first cover 31 and the second cover 41 are preferably designed with bevels, that is, the free end of the first cover 31 gradually narrows towards the corresponding connected side panel from the position close to and away from the first abutment 32, and the free end of the second cover 41 gradually narrows towards the corresponding connected side panel from the position close to and away from the second abutment 42.

[0082] like Figure 2 As shown, to facilitate the insertion of the latch into the self-locking slot 21, a fold line is provided between the latch 51 and the lock body 52. ​​The latch 51 can be folded before insertion to prevent the lock body 52 from being folded and leaving marks. To facilitate the folding and protection of the self-locking part from damage, a fold line 100 is provided at the connection between the self-locking part and the latch 511. Chamfers or rounded corners are provided at the two connections between the self-locking parts and the latch 511 at the free end of the latch 51. Figure 2 At the dotted circle, away from the connection between the latch 51 and the lock body 52, two horn-like structures are formed. Because the connection area between the self-locking part and the latch 511 is reduced by the chamfer, the structural strength is lowered. When the self-locking piece 5 is forcibly pulled out, the self-locking part will bend forward at the chamfered position and tear along the fold line 100. Furthermore, the chamfered design also has the advantage of creating a transitional structure with a narrow front and wide rear when the self-locking part is folded, making it easier to insert into the self-locking slot 21.

[0083] like Figure 3As shown, in this embodiment, when the end face is closed, the cover plate 2 is folded open first, and the first flap 3 and the second flap 4 fold over and cover the outside of the cover plate 2. The locking body 52 is located outside the first flap 3 and the second flap 4, and the tongue 511 is inserted into the packaging box through the self-locking slot 21 and is limited inside the packaging box by the self-locking part. The surfaces of the first abutting part 32 and the second abutting part 42 are provided with an adhesive layer, which can be bonded and fixed to the cover plate 2 and the self-locking piece 5. In this way, the end panel of the packaging box is effectively closed, and there is no gap on the side that leads directly into the inside of the packaging box, avoiding the problem of seeing the internal goods by using the side panels and end panels on both sides of the flexible opening gap of the packaging box material itself. In other embodiments, the first flap 3 and the second flap 4 can be folded first, with the cover plate 2 folded over the first flap 3 and the second flap 4, and then bonded and fixed to the first flap 3, the second flap 4, and the self-locking piece 5 respectively by the adhesive layers on both sides of the cover plate 2. In other embodiments, the first flap 3 or the second flap 4 can be folded first, with the cover plate 2 folded over the first flap 3 / second flap 4, then the second flap 4 / first flap 3 is folded, and finally the self-locking piece 5 is folded. This utility model does not limit this. In this utility model, it is preferable to close the cover plate 2 first, and then close the first flap 3 and the second flap 4. The advantage of doing so is that it further increases the difficulty of cutting open the adhesive surface from the gap between the end face and the side to see the goods inside the box. At the same time, the side lines of the exposed parts of the first flap 3 and the second flap 4 are symmetrical with the side lines of the self-locking piece 5, which is more aesthetically pleasing.

[0084] In other embodiments, the cover plate 2, the first flip cover 3, the self-locking piece 5, and the second flip cover 4 can serve only as the bottom / top panel of the packaging box, with the top / bottom panel serving as the normal opening surface of the packaging box. Multiple sub-panels, each connected to different side panels, are closed using a conventional method of mutual adhesion. Simultaneously, anti-counterfeiting labels are attached to both sides of the gap between the sub-panel and the adjacent side panel to prevent tearing the sub-panel from the gap. An easy-tear line or easy-tear opening is provided on the sub-panel as a one-time opening structure. When the box lid is opened normally, the sub-panel is damaged through the easy-tear line or easy-tear opening. The easy-tear line and easy-tear opening can also coexist, with the easy-tear opening designed at the end of the easy-tear line for easy gripping.

[0085] To further enhance the anti-counterfeiting and aesthetic effects of the packaging box, in other embodiments, an anti-counterfeiting information layer may be attached to any one or more surfaces of the first end panel, the second end panel, and multiple side panels of the packaging box. The anti-counterfeiting information layer may be a micro-nano optical anti-counterfeiting structure, a magnetochromic anti-counterfeiting structure, an optical color-changing anti-counterfeiting structure, a magnetic resonance anti-counterfeiting structure, and / or an ink anti-counterfeiting structure.

[0086] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0087] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A packaging box, characterized in that, It includes a first end panel, a second end panel and multiple side panels, wherein the first end panel and / or the second end panel include: a cover plate (2), a first flip cover (3), a self-locking piece (5) and a second flip cover (4) respectively connected to different side panels; The cover plate (2) is provided with a self-locking opening (21); The self-locking plate (5) includes a latch (51) and a lock body (52). One side of the lock body (52) is connected to a side panel, and the opposite side is connected to the latch (51). The latch (51) includes a tongue (511), and a self-locking part is connected to the side of the tongue (511). One side of the first flip cover (3) is located on the side of the self-locking opening (21) near the self-locking piece (5); One side of the second flip cover (4) is located on the side of the self-locking opening (21) near the self-locking piece (5); The first flip cover (3) and the second flip cover (4) are located on the outside or inside of the cover plate (2), the lock body (52) is located on the outside of the first flip cover (3), the second flip cover (4) and the cover plate (2), the tongue (511) is inserted into the packaging box through the self-locking port (21) and is limited in the packaging box by the self-locking part.

2. The packaging box according to claim 1, characterized in that, The self-locking opening (21) is located in the middle of the first end face area and / or the second end face area of ​​the packaging box.

3. The packaging box according to claim 2, characterized in that, The self-locking opening (21) is located on the centerline of the first end face area and / or the second end face area of ​​the packaging box.

4. The packaging box according to claim 1, characterized in that, The first flip cover (3) includes a first cover body (31) and a first abutting part (32) connected together. The first cover body (31) and the first abutting part (32) are respectively connected to the side panel. The first abutting part (32) is located between the self-locking opening (21) and the free end of the cover plate (2) and is used to abut against the self-locking part when the tongue (511) is pulled outward. The first cover body (31) is located at the free end away from the cover plate (2).

5. The packaging box according to claim 4, characterized in that, The side of the first abutting part (32) near the self-locking opening (21) is flush with the side of the self-locking opening (21); And / or, the free end of the first cover (31) gradually narrows towards the corresponding connected side panel from a position close to and away from the first abutment (32); And / or, the surface of the first contact portion (32) is provided with an adhesive layer.

6. The packaging box according to claim 1, characterized in that, The second flip cover (4) includes a second cover body (41) and a second abutment part (42) connected together. The second cover body (41) and the second abutment part (42) are respectively connected to the side panel. The second abutment part (42) is located between the self-locking opening (21) and the free end of the cover plate (2) and is used to abut against the self-locking part when the tongue (511) is pulled outward. The second cover body (41) is located at the free end away from the cover plate (2).

7. The packaging box according to claim 6, characterized in that, The side of the second abutting part (42) near the self-locking opening (21) is flush with the side of the self-locking opening (21); And / or, the free end of the second cover (41) gradually narrows towards the corresponding connected side panel from a position close to and away from the second abutment (42); And / or, the surface of the second contact portion (42) is provided with an adhesive layer.

8. The packaging box according to claim 1, characterized in that, The width of the tongue (511) is less than or equal to the width of the self-locking opening (21), and the width of the locking tongue (51) is greater than the width of the self-locking opening (21); And / or, the two sides of the lock body (52) gradually narrow inward from the position where it connects to the side panel to the position where it connects to the bolt (51); And / or, the number of the self-locking parts is two, the two self-locking parts are a first self-locking part (512) and a second self-locking part (513), which are respectively connected to two opposite sides of the tongue (511); And / or, the cover plate (2) and the self-locking piece (5) are respectively connected to two opposite side panels, and the first flip cover (3) and the second flip cover (4) are respectively connected to two other opposite side panels; And / or, the cover plate (2) is capable of covering the first end face area and / or the second end face area of ​​the packaging box; And / or, when the number of the self-locking part is one, a chamfer or rounded corner is provided at the connection between the self-locking part and the tongue (511) at the free end of the locking tongue (51); when the number of the self-locking parts is multiple, a chamfer or rounded corner is provided at the connection between one or more of the self-locking parts and the tongue (511) at the free end of the locking tongue (51). And / or, the connection between the self-locking part and the tongue (511) has a fold line (100). And / or, also includes a connecting plate (102) attached to a side panel (101) at one end for connection to a side panel (101) at the other end; And / or, the first end panel and the second end panel are respectively the top and bottom of the packaging box.

9. The packaging box according to claim 1, characterized in that, One of the first end panel and the second end panel includes multiple sub-panels respectively connected to different side panels, which are closed by pasting two or more sub-panels together.

10. The packaging box according to claim 9, characterized in that, Anti-counterfeiting labels are attached to both sides of the gap between the sub-panel and the adjacent side panel. And / or, the sub-panel is provided with an easy-tear line and / or an easy-tear opening.

11. The packaging box according to claim 1, characterized in that, An anti-counterfeiting information layer is attached to the surface of any one or more of the first end panel, the second end panel, and the plurality of side panels.

12. The packaging box according to claim 11, characterized in that, The anti-counterfeiting information layer includes any one or more of the following: micro-nano optical anti-counterfeiting structure, magnetochromic anti-counterfeiting structure, optical color-changing anti-counterfeiting structure, magnetic resonance anti-counterfeiting structure, or ink anti-counterfeiting structure.

13. A packaging box blank, characterized in that, It includes multiple side panels (101) connected in sequence, and a cover plate (2), a first flip cover (3), a self-locking piece (5) and a second flip cover (4) are respectively connected on the side edges of the multiple side panels (101) connected in series on one or both sides. The cover plate (2) is provided with a self-locking opening (21); The self-locking plate (5) includes a latch (51) and a lock body (52). One side of the lock body (52) is connected to a side panel, and the opposite side is connected to the latch (51). The latch (51) includes a tongue (511), and a self-locking part is connected to the side of the tongue (511). The packaging box blank can be folded and closed to form the packaging box according to any one of claims 1-12.

14. The packaging box blank according to claim 13, characterized in that, There is a fold line (100) between the latch (51) and the lock body (52). And / or, the tongue (511) has a fold line (100) between it and the self-locking part. And / or, also includes a connecting plate (102) attached to a side panel (101) at one end for connection to a side panel (101) at the other end; And / or, the cover plate (2) and the self-locking piece (5) are respectively connected to two non-adjacent side panels (101), and the first flip cover (3) and the second flip cover (4) are respectively connected to two non-adjacent side panels (101). And / or, there is a fold line (100) between two adjacent side panels (101). And / or, multiple side panels (101) have fold lines (100) between them and the connected cover plate (2), first flip cover (3), self-locking piece (5) and second flip cover (4). And / or, the width of the tongue (511) is less than or equal to the width of the self-locking opening (21), and the width of the locking tongue (51) is greater than the width of the self-locking opening (21); And / or, the two sides of the lock body (52) gradually narrow inward from the position where it connects to the side panel to the position where it connects to the bolt (51); And / or, the number of the self-locking parts is two, the two self-locking parts are a first self-locking part (512) and a second self-locking part (513), which are respectively connected to two opposite sides of the tongue (511); And / or, when the number of the self-locking part is one, a chamfer or rounded corner is provided at the connection between the self-locking part and the tongue (511) at the free end of the locking tongue (51); when the number of the self-locking parts is multiple, a chamfer or rounded corner is provided at the connection between one or more of the self-locking parts and the tongue (511) at the free end of the locking tongue (51). And / or, the connection between the self-locking part and the tongue (511) has a fold line (100). And / or, multiple sub-panels are connected to the side edges of multiple side panels (101) connected in series on one side; And / or, the cover plate (2), the first flip cover (3), the self-locking piece (5) and the second flip cover (4) are connected on the side of a plurality of side panels (101) connected in series on one side, and can be folded to form the top and / or bottom of the packaging box.

15. A commodity, characterized in that, It includes the product body and the packaging box as described in any one of claims 1-12, wherein the product body is located inside the packaging box.

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