Packaging box

Abstract

The utility model relates to the technical field of environment-friendly packaging, in particular to a packaging box. The packaging box comprises a plate body which can be folded into a box body; the plate body at least comprises a bottom plate, a side plate group and a lining group which are divided by crease lines; the side plate set comprises a first side plate and a second side plate which are connected to the two sides, in the first direction, of the bottom plate correspondingly, and a third side plate and a fourth side plate which are connected to the two sides, in the second direction, of the bottom plate correspondingly. The lining set comprises a lining bottom plate, a first buffer plate, a second buffer plate, a third buffer plate and a fourth buffer plate, wherein the first buffer plate and the second buffer plate are connected to the two sides, in the first direction, of the lining bottom plate correspondingly, and the third buffer plate and the fourth buffer plate are connected to the two sides, in the second direction, of the lining bottom plate correspondingly. The side, away from the bottom plate, of the second side plate is connected with the first buffer plate. During folding, the first buffer plate, the second buffer plate, the third buffer plate and the fourth buffer plate are folded into hollow buffer structures located on the inner sides of the second side plate, the first side plate, the third side plate and the fourth side plate correspondingly. The utility model provides an environment-friendly shockproof anti-drop formaldehyde-free glue-free integrated packaging box.

Description

Technical Field

[0001] This utility model relates to the field of environmentally friendly packaging technology, and in particular to a packaging box. Background Technology

[0002] In today's logistics and warehousing systems, packaging boxes are crucial protective tools during the transportation and storage of goods, serving multiple functions. In the field of transport packaging, they aim to minimize damage to products during transportation, ensure product safety, facilitate loading and unloading, and expedite handover and inspection. Generally speaking, outer packaging primarily intended for transportation and storage not only protects goods from damage or discrepancies during transport but also minimizes the impact of external conditions on the goods, while also facilitating inspection, counting, and sorting. Furthermore, in addition to these practical functions, packaging boxes can also enhance the appearance and promote the product. In today's environment where environmental awareness is deeply ingrained, packaging boxes must not only possess strong practical functions but also meet the demands of green and sustainable development. Therefore, packaging boxes must be made of environmentally friendly materials and be easy to load, unload, and transport while protecting the product.

[0003] However, most existing packaging boxes use the 0201 slotted type, also known as traditional dovetail boxes. This type of box has many shortcomings. Even if the materials used are environmentally friendly, the molding process still requires glue or nails to seal the edges. Furthermore, sealing tape is used to seal the bottom and lid. After sealing, some workers, in order to speed up the process, may not handle the boxes gently, thus damaging them. Traditionally, to protect the product, internal linings or more layers of material are added for extra protection. However, the adhesives used for sealing and sealing tape generally contain formaldehyde, leading to environmental problems. Additionally, strengthening the external protection of the box may waste materials and labor time. This not only wastes time and reduces efficiency but also damages the outer packaging, preventing its reuse and resulting in resource waste. Utility Model Content

[0004] To address the shortcomings in the cushioning performance of existing packaging boxes, this utility model provides a packaging box.

[0005] The technical solution provided by this utility model is as follows:

[0006] A packaging box, comprising a panel capable of being folded into a box body;

[0007] The plate body includes at least a base plate, a side plate assembly, and an inner lining assembly divided by crease lines; the side plate assembly includes a first side plate and a second side plate respectively connected to both sides of the base plate along a first direction, and a third side plate and a fourth side plate respectively connected to both sides of the base plate along a second direction.

[0008] The inner liner assembly includes an inner liner plate, a first buffer plate and a second buffer plate respectively connected to both sides of the inner liner plate along a first direction, and a third buffer plate and a fourth buffer plate respectively connected to both sides of the inner liner plate along a second direction; the side of the second side plate away from the bottom plate is connected to the first buffer plate.

[0009] When the packaging box is in a folded state, the first buffer plate, the second buffer plate, the third buffer plate and the fourth buffer plate are folded into hollow buffer structures located inside the second side plate, the first side plate, the third side plate and the fourth side plate, respectively.

[0010] In one embodiment, the first side plate and / or the second side plate are provided with a reinforcing plate along the side edge in the second direction.

[0011] In one embodiment, the third side plate and / or the fourth side plate are provided with a tongue on the side along the first direction;

[0012] The reinforcing plate has a positioning slot in the area near the first side plate and / or the second side plate, so that when the packaging box is in a folded state, the tongue is inserted into the positioning slot.

[0013] In one embodiment, along the direction away from the second side plate, the first buffer plate includes a first transition plate and a first inner lining side plate connected in sequence;

[0014] Along a direction away from the inner lining plate, the second buffer plate includes a second inner lining side plate, a second transition plate, and a second support plate connected in sequence.

[0015] Along a direction away from the inner lining plate, the third buffer plate includes a third inner lining side plate, a third transition plate, and a third support plate connected in sequence;

[0016] Along a direction away from the inner lining plate, the fourth buffer plate includes a fourth inner lining side plate, a fourth transition plate, and a fourth support plate connected in sequence.

[0017] In one embodiment, the third support plate and / or the fourth support plate are provided with a limiting notch along the side of the first direction, so that when the packaging box is in a folded state, the tongue is inserted into the positioning socket and the limiting notch in sequence.

[0018] In one embodiment, the second support plate has a clearance notch on its side along the second direction;

[0019] Wherein, the projected area of ​​the clearance notch is greater than or equal to the projected area of ​​the tongue, so that when the packaging box is in a folded state, after the tongue is inserted into the positioning notch and the limiting notch in sequence, the clearance notch is sufficient to accommodate the part of the tongue after insertion.

[0020] In one embodiment, the width of the third support plate along the first direction is greater than that of the third inner lining side plate;

[0021] The width of the fourth support plate along the first direction is greater than that of the fourth inner lining side plate.

[0022] In one embodiment, a first cover plate is connected to the side of the third side plate away from the bottom plate, and the first cover plate is provided with a first notch;

[0023] The fourth side plate is connected to a second cover plate on the side away from the bottom plate, and the second cover plate is provided with a second notch;

[0024] When the packaging box is in a folded state, the first notch and the second notch are positioned opposite each other.

[0025] In one embodiment, a top plate is also included, wherein the side of the first side plate away from the bottom plate is connected to the top plate.

[0026] In one embodiment, an extension plate is connected to the side of the top plate away from the first side plate; the extension plate is provided with a closing tongue on the side away from the top plate.

[0027] The second side plate has an external closure slot in the area near the bottom plate;

[0028] The connection area between the first buffer plate and the inner substrate plate is provided with an inner closed socket;

[0029] When the packaging box is in a folded state, the closing tongue is inserted into the outer closing socket and the inner closing socket in sequence.

[0030] Based on the above, the packaging box provided by this utility model has a hollow buffer structure by setting an inner lining group. In this way, when the packaging box is impacted or subjected to violent handling during transportation and handling, the product inside the box can obtain a certain buffer space, thereby enhancing the protection function of the product.

[0031] Other features and beneficial effects of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other beneficial effects of this invention can be realized and obtained through the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships shown in the drawings in the following description are based on the direction in which the components are drawn in the figure.

[0033] Figure 1 The diagram shown is a structural schematic of a packaging box in an unfolded state, according to an embodiment of this utility model.

[0034] Figure 2 for Figure 1 The diagram shows the structure of the packaging box at the first moment during the folding process.

[0035] Figure 3 for Figure 1 The diagram shows the structure of the packaging box at the second moment during the folding process.

[0036] Figure 4 for Figure 1 The diagram shows the structure of the packaging box at the third moment during the folding process.

[0037] Figure 5 for Figure 1 The diagram shows the structure of the packaging box at the fifth moment of the folding process.

[0038] Figure label:

[0039] 10. Base plate;

[0040] 2. Side panel assembly;

[0041] 21. First side plate; 211. First reinforcing plate; 2111. First positioning socket; 212. Second reinforcing plate; 2121. Second positioning socket;

[0042] 22. Second side plate; 221. Third reinforcing plate; 2211. Third positioning socket; 222. Fourth reinforcing plate; 2221. Fourth positioning socket; 223. External closing socket;

[0043] 23. Third side plate; 231. First tongue; 232. Second tongue; 233. First cover plate; 2331. First notch;

[0044] 24. Fourth side plate; 241. Third tongue; 242. Fourth tongue; 243. Second cover plate; 2431. Second notch;

[0045] 3. Lining assembly;

[0046] 30. Inner substrate plate;

[0047] 31. First buffer plate; 311. First transition plate; 312. First inner lining side plate; 3121. Inner closing socket;

[0048] 32. Second buffer plate; 321. Second inner lining side plate; 322. Second transition plate; 323. Second support plate; 3231. Clearance notch;

[0049] 33. Third buffer plate; 331. Third inner lining side plate; 332. Third transition plate; 333. Third support plate; 3321. First limiting notch; 3322. Second limiting notch;

[0050] 34. Fourth buffer plate; 341. Fourth inner lining side plate; 342. Fourth transition plate; 343. Fourth support plate; 3431. Third limiting notch; 3432. Fourth limiting notch;

[0051] 40. Top plate; 50. Extension plate; 60. Closing tongue. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The technical features designed in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0053] In the description of this utility model, it should be noted that all terms used in this utility model (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains, and should not be construed as limiting this utility model; it should be further understood that the terms used in this utility model should be understood to have the same meaning as those in the context of this specification and in the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this utility model.

[0054] One embodiment of this utility model provides a packaging box, including a board body that can be folded into a box body; the four sides of the box body and the tongue are all made of corrugated cardboard material to ensure the strength and stability of the box body.

[0055] Please refer to Figure 1As shown, the plate body includes at least a base plate 10 and a side plate assembly 2 divided by crease lines;

[0056] Please refer to Figure 1 and Figure 2 In this embodiment, the first direction is the X-axis direction, the second direction is the Y-axis direction, and the side plate group 2 includes a first side plate 21 and a second side plate 22 respectively connected to the two sides of the base plate 10 along the first direction, and a third side plate 23 and a fourth side plate 24 respectively connected to the two sides of the base plate 10 along the second direction; wherein, the structure of the base plate 10 and the side plate group 2 can refer to the structure of existing product packaging.

[0057] The packaging box provided in this embodiment also includes an inner lining assembly 3, which is connected to the side panel assembly 2 and is located inside the box in a folded state. The inner lining assembly 3 includes an inner lining plate 30, a first buffer plate 31 and a second buffer plate 32 respectively connected to both sides of the inner lining plate 30 along a first direction, and a third buffer plate 33 and a fourth buffer plate 34 respectively connected to both sides of the inner lining plate 30 along a second direction; the side of the second side plate 22 away from the bottom plate 10 is connected to the first buffer plate 31.

[0058] When the packaging box is in a folded state, the first buffer plate 31, the second buffer plate 32, the third buffer plate 33 and the fourth buffer plate 34 are folded into hollow buffer structures located inside the second side plate 22, the first side plate 21, the third side plate 23 and the fourth side plate 24, respectively.

[0059] The packaging box provided in this embodiment has an unfolded state and a folded state, wherein... Figure 1 The diagram shown is a structural schematic of a packaging box in an unfolded state, according to an embodiment of this utility model. Figure 2 for Figure 1 The diagram shows the structure of the packaging box at the first moment during the folding process. Figure 3 for Figure 1 The diagram shows the structure of the packaging box at the second moment during the folding process. Figure 4 for Figure 1 The diagram shows the structure of the packaging box at the third moment during the folding process. Figure 5 for Figure 1The diagram shown illustrates the structure of the packaging box at the fifth moment of its folding process. At this point, the packaging box is in one of its folded states, and its interior contains storage space for the contents. Furthermore, the packaging box, when unfolded, can be folded and interlocked according to certain rules to return to its folded state, and vice versa. The following text will describe one folding method of the packaging box in this embodiment based on its structure. It is worth noting that the folding method provided in this embodiment is only a preferred folding method based on the specific structure, and is not the only folding method. In practical applications, the folding order can be adjusted accordingly.

[0060] Please refer to the packaging box provided in this embodiment. Figure 1 The dashed box shows the structure of the inner lining assembly laid flat. The inner lining assembly 3 includes an inner lining plate 30, a first buffer plate 31, a second buffer plate 32, a third buffer plate 33, and a fourth buffer plate 34. Along the direction away from the second side plate 22, the first buffer plate 31 includes a first transition plate 311 and a first inner lining side plate 312 connected in sequence. Along the direction away from the inner lining plate 30, the second buffer plate 32 includes a second inner lining side plate 321, a second transition plate 322, and a second support plate 323 connected in sequence. The third buffer plate 33 includes a third inner lining side plate 331, a third transition plate 332, and a third support plate 333 connected in sequence. The fourth buffer plate 34 includes a fourth inner lining side plate 341, a fourth transition plate 342, and a fourth support plate 343 connected in sequence. The packaging box provided in this embodiment is assembled according to a predetermined fold line using the inner lining side plates, transition plates, and support plates, resulting in a hollow buffer plate structure on the side walls of the inner lining assembly 3 after folding. Please refer to... Figure 2 and Figure 3 The second buffer plate 32, the third buffer plate 33, and the fourth buffer plate 34 each have a support plate as the outer wall, an inner lining side plate as the inner wall, and a transition plate connecting them to form a hollow structure. The thickness of the hollow buffer structure can be adaptively adjusted to the width of the transition plate to obtain a hollow buffer structure of suitable thickness. In this way, when the packaging box is impacted or subjected to violent handling during transportation and handling, the products stored in the box can obtain a certain buffer space, which can play a role in shockproofing, drop prevention, and product protection to a certain extent.

[0061] Specifically, the width of the first buffer plate 31 and the third buffer plate 33 along the second direction is smaller than that of the second side plate 22, and the width of the second buffer plate 32 and the fourth buffer plate 34 along the first direction is smaller than that of the third side plate 23. By setting the width of each buffer plate to be smaller than the width of the connected side plate in the specific implementation process, and the height of the hollow buffer structure formed is flush with the height of the side plate group 2, the inner lining group 3 can be better embedded in the space formed by the side plate group 2 and the bottom plate 10, and at the same time effectively ensure that the product has sufficient buffering force to protect it when the item is impacted.

[0062] Please refer to Figure 1 , Figure 3 and Figure 4 The first side plate 21 and / or the second side plate 22 are provided with reinforcing plates along the side of the second direction. In this embodiment, the first side plate 21 is provided with a first reinforcing plate 211 and a second reinforcing plate 212 on both sides of the second direction, and the second side plate 22 is provided with a third reinforcing plate 221 and a fourth reinforcing plate 222 on both sides of the second direction. When the packaging box is in a folded state, the first reinforcing plate 211, the second reinforcing plate 212, the third reinforcing plate 221, and the fourth reinforcing plate 222 all converge towards the middle, presenting a position perpendicular to the bottom plate 10. The various reinforcing plates cooperate with each other to support the top plate 40, making the soft-cushion structure formed by the inner lining group 3 more stable and providing more stable protection for the stored items. It should be noted that the setting method provided in this embodiment is only a preferred method based on the specific structure, but it is not the only method. In actual application, it can also be adapted and adjusted, such as setting it on the same side of the first side plate 21 and the second side plate 22.

[0063] Furthermore, the third side plate 23 and / or the fourth side plate 24 are provided with tongues on their sides along the first direction, and the reinforcing plate is provided with positioning slots in the area near the first side plate 21 and / or the second side plate 22, so that when the packaging box is in a folded state, the tongues are inserted into the positioning slots; please refer to Figures 1 to 4In a preferred embodiment of this invention, the third side plate 23 is provided with a first tongue 231 and a second tongue 232 on both sides along the first direction, and the fourth side plate 24 is provided with a third tongue 241 and a fourth tongue 242 on both sides along the first direction. The first reinforcing plate 211 and the second reinforcing plate 212 are provided with a first positioning socket 2111 and a second positioning socket 2121 in the area near the first side plate 21, respectively. When the packaging box is in a folded state, the first tongue 231, the second tongue 232, the third tongue 241, and the fourth tongue 242 are respectively inserted into the first positioning socket 2111, the second positioning socket 2121, the third positioning socket 2211, and the fourth positioning socket 2221. In this way, the third side plate 23 and the fourth side plate 24 can be effectively fixed by their own structure alone, without the need for adhesives.

[0064] Furthermore, the third support plate 333 and / or the fourth support plate 343 are provided with a limiting notch along the side of the first direction, so that when the packaging box is in a folded state, the tongue is inserted into the positioning socket and the limiting notch in sequence; please refer to Figures 1 to 4 In a preferred embodiment of the present invention, the third support plate 333 is provided with a first limiting notch 3321 and a second limiting notch 3322 on both sides along the first direction, and the fourth support plate 343 is provided with a third limiting notch 3431 and a fourth limiting notch 3432 on both sides along the first direction.

[0065] When the packaging box is in a folded state, the first tongue 231 is inserted into the first positioning socket 2111 and the second limiting notch 3322 in sequence, the second tongue 232 is inserted into the third positioning socket 2211 and the first limiting notch 3321 in sequence, the third tongue 241 is inserted into the second positioning socket 2121 and the fourth limiting notch 3432 in sequence, and the fourth tongue 242 is inserted into the fourth positioning socket 2221 and the third limiting notch 3431 in sequence. In this way, the stability of the tongue insertion can be further enhanced.

[0066] For further information, please continue to refer to [link / reference]. Figure 1 In a preferred embodiment of the present invention, the second support plate 323 is provided with a clearance notch 3231 along the side of the second direction; wherein, the projected area of ​​the clearance notch 3231 is greater than or equal to the projected area of ​​the tongue, so that when the packaging box is in a folded state, after the tongue is inserted into the positioning notch and the limiting notch in sequence, the clearance notch 3231 is sufficient to accommodate the portion of the tongue after insertion.

[0067] For further information, please continue to refer to [link / reference]. Figure 1In a preferred embodiment of this utility model, the width of the third support plate 333 along the first direction is greater than that of the third inner lining side plate 331; the width of the fourth support plate 343 along the first direction is greater than that of the fourth inner lining side plate 341, so as to facilitate the folding of the inner lining assembly 3; further, along the second direction, the distance by which the crease line of the third inner lining side plate 331 that connects with the inner lining substrate 30 extends deeper into the center of the inner lining substrate 30 than the same side edge of the first inner lining side plate 312 and the second inner lining side plate 321 is d1, and the width of d1 is preferably less than or equal to the width of the third transition plate 332; along the second direction, the distance by which the crease line of the fourth inner lining side plate 341 that connects with the inner lining substrate 30 extends deeper into the center of the inner lining substrate 30 than the same side edge of the first inner lining side plate 312 and the second inner lining side plate 321 is d2, and the width of d2 is preferably less than or equal to the width of the third transition plate 332.

[0068] For further details, please refer to... Figure 1 and Figure 5 In this embodiment, a top plate 40 is also included. The side of the first side plate 21 away from the bottom plate 10 is connected to the top plate 40. The top plate 40 can be used for sealing.

[0069] Please refer to Figures 1 to 5 In this embodiment, an extension plate 50 is connected to the side of the top plate 40 away from the first side plate 21; a closing tongue 60 is provided on the side of the extension plate 50 away from the top plate 40; an outer closing slot 223 is provided in the area of ​​the second side plate 22 near the bottom plate 10; an inner closing slot 3121 is provided in the connection area between the first buffer plate 31 and the inner substrate 30; when the packaging box is in a folded state, the closing tongue 60 is inserted into the outer closing slot 223 and the inner closing slot 3121 in sequence. Preferably, the width of the closing tongue 60 in the first direction is greater than the width of the first transition plate 311 in the first direction, so that when the packaging box is in a folded state, the closing tongue 60 is below the inner substrate 30 after insertion; thus, preferably, the width of the inner closing slot 3121 in the first direction is greater than or equal to the width of the closing tongue 60 in the first direction; by adopting the above-mentioned closing tongue 60, the robustness and impact resistance of the packaging box can be enhanced.

[0070] Therefore, this embodiment of the invention, through the arrangement of multiple tongues, effectively avoids the need for adhesive to seal the bottom and lid of the packaging box during edge sealing in the prior art. The adhesives used in these edge sealing adhesives and sealing tapes typically contain formaldehyde and other environmentally unfriendly components, making it difficult to meet current environmental requirements. Furthermore, after the side panels are folded up, the tongues on the four side panels are folded up and inserted into the slots, thereby achieving a fixing and shaping effect.

[0071] Please refer to Figure 1 and Figure 5 In this embodiment, the side of the third side plate 23 away from the bottom plate is connected to a first cover plate 233, and the first cover plate 233 has a first notch 2331; the side of the fourth side plate 24 away from the bottom plate is connected to a second cover plate 243, and the second cover plate 243 has a second notch 2431; when in the folded state, the first notch 2331 and the second notch 2431 are arranged opposite to each other. The shape formed by the first notch 2331 and the second notch 2431 can be circular, elliptical, square, rectangular, etc. The setting of the first notch 2331 and the second notch 2431 can be applied to different product packaging. Taking a common product as an example, the notch formed by the first notch 2331 and the second notch 2431 can be used to directly observe the product inside. At the same time, the design of the notch facilitates the opening of the box lid and other operations before taking out the product from the packaging box.

[0072] This utility model provides an assembly method for the packaging box as described above:

[0073] refer to Figure 1 First, fold the rightmost inner lining assembly along the creases and fold lines to create the lining shape. Then, gather the reinforcing plates on both sides and insert the tabs on the third and fourth side plates of the side panel assembly to achieve a sturdy and stable finish. Finally, close the top plate and extension plate, inserting the closing tabs into the pre-drilled slots to complete the assembly. Please refer to further instructions. Figure 5 Through the above specific implementation methods, the environmentally friendly, shockproof, drop-proof, formaldehyde-free, glue-free integrated packaging box provided by this utility model embodiment is assembled. This packaging box can effectively solve many problems existing in the current packaging boxes and achieve advantages such as environmental protection, shockproof, and reusability.

[0074] In summary, compared with the prior art, the packaging box provided by the above embodiments of this utility model has the following beneficial effects:

[0075] Firstly, the packaging box provided by this utility model completely eliminates the glue, nails, and sealing tape containing formaldehyde and other components used in the molding and sealing process of traditional packaging boxes, fundamentally avoiding environmental problems such as formaldehyde release caused by these materials, and meeting modern environmental protection requirements.

[0076] Secondly, the packaging box provided in this embodiment overcomes the lack of effective cushioning and protection design in traditional packaging boxes. This embodiment adds an integrated liner inside the outer box and intentionally reserves some cushioning space near the edge of the outer box. In this way, when the packaging box is impacted or subjected to rough handling during transportation and handling, the product can obtain a certain amount of cushioning space. At the same time, the outer box wall is thickened, thus enhancing the product's protective function to a certain extent.

[0077] Thirdly, traditional sealing methods such as glue and iron clamps can damage the packaging box during assembly and disassembly. However, the packaging box provided by this utility model will not damage the outer box during assembly and disassembly. After completing a transportation or storage task, the box body, lid and bottom can still maintain the complete structure, which can be easily used again, realizing the effective use of resources and reducing resource waste.

[0078] Fourth, because the inner lining and outer box are integrated, the inner lining can be completed when the outer box is formed, which can effectively reduce assembly steps and parts. In addition, the flap has a visual design, which allows people to quickly know the contents of the product without fully opening the packaging, which can effectively improve efficiency and save consumables.

[0079] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0080] Although this article frequently uses terms such as base plate, side plate assembly, first side plate, first reinforcing plate, first positioning socket, second reinforcing plate, second positioning socket, second side plate, third reinforcing plate, third positioning socket, fourth reinforcing plate, fourth positioning socket, outer closing socket, third side plate, first tongue, second tongue, first cover plate, first notch, fourth side plate, third tongue, fourth tongue, second cover plate, second notch, liner assembly, inner liner base plate, first buffer plate, first transition plate, first inner liner side plate, inner closing socket, second buffer plate, second inner liner side plate, second transition plate, second support plate, clearance notch, third buffer plate, third inner liner side plate, third transition plate, third support plate, first limiting notch, second limiting notch, fourth buffer plate, fourth inner liner side plate, fourth transition plate, fourth support plate, third limiting notch, fourth limiting notch, top plate, extension plate, closing tongue, etc., the possibility of using other terms cannot be ruled out. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model; the terms "first," "second," etc. (if present) in the specification, claims, and drawings of the embodiments of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A packaging box, characterized in that, The device includes a panel that can be folded into a box; the panel includes at least a bottom plate, a side plate assembly, and an inner lining assembly divided by crease lines; the side plate assembly includes a first side plate and a second side plate respectively connected to both sides of the bottom plate along a first direction, and a third side plate and a fourth side plate respectively connected to both sides of the bottom plate along a second direction. The inner liner assembly includes an inner liner plate, a first buffer plate and a second buffer plate respectively connected to both sides of the inner liner plate along a first direction, and a third buffer plate and a fourth buffer plate respectively connected to both sides of the inner liner plate along a second direction; the side of the second side plate away from the bottom plate is connected to the first buffer plate. When the packaging box is in a folded state, the first buffer plate, the second buffer plate, the third buffer plate and the fourth buffer plate are folded into hollow buffer structures located inside the second side plate, the first side plate, the third side plate and the fourth side plate, respectively.

2. The packaging box according to claim 1, characterized in that, The first side plate and / or the second side plate are provided with reinforcing plates along the side edge in the second direction.

3. The packaging box according to claim 2, characterized in that, The third side plate and / or the fourth side plate are provided with a tongue on the side along the first direction; The reinforcing plate has a positioning slot in the area near the first side plate and / or the second side plate, so that when the packaging box is in a folded state, the tongue is inserted into the positioning slot.

4. The packaging box according to claim 3, characterized in that, Along the direction away from the second side plate, the first buffer plate includes a first transition plate and a first inner lining side plate connected in sequence; Along a direction away from the inner lining plate, the second buffer plate includes a second inner lining side plate, a second transition plate, and a second support plate connected in sequence. Along a direction away from the inner lining plate, the third buffer plate includes a third inner lining side plate, a third transition plate, and a third support plate connected in sequence; Along a direction away from the inner lining plate, the fourth buffer plate includes a fourth inner lining side plate, a fourth transition plate, and a fourth support plate connected in sequence.

5. The packaging box according to claim 4, characterized in that, The third support plate and / or the fourth support plate are provided with a limiting notch along the side of the first direction so that when the packaging box is in a folded state, the tongue is inserted into the positioning socket and the limiting notch in sequence.

6. The packaging box according to claim 5, characterized in that, The second support plate has a clearance notch along its side in the second direction; Wherein, the projected area of ​​the clearance notch is greater than or equal to the projected area of ​​the tongue, so that when the packaging box is in a folded state, after the tongue is inserted into the positioning notch and the limiting notch in sequence, the clearance notch is sufficient to accommodate the part of the tongue after insertion.

7. The packaging box according to claim 6, characterized in that, The width of the third support plate along the first direction is greater than that of the third inner lining side plate; The width of the fourth support plate along the first direction is greater than that of the fourth inner lining side plate.

8. The packaging box according to claim 1, characterized in that, The third side plate is connected to a first cover plate on the side away from the bottom plate, and the first cover plate is provided with a first notch; The fourth side plate is connected to a second cover plate on the side away from the bottom plate, and the second cover plate is provided with a second notch; When the packaging box is in a folded state, the first notch and the second notch are positioned opposite each other.

9. The packaging box according to claim 1, characterized in that, It also includes a top plate, and the side of the first side plate away from the bottom plate is connected to the top plate.

10. The packaging box according to claim 9, characterized in that, An extension plate is connected to the side of the top plate away from the first side plate; a closing tongue is provided on the side of the extension plate away from the top plate. The second side plate has an external closure slot in the area near the bottom plate; The connection area between the first buffer plate and the inner substrate plate is provided with an inner closed socket; When the packaging box is in a folded state, the closing tongue is inserted into the outer closing socket and the inner closing socket in sequence.

Images