Packaging box

Abstract

The application relates to a packaging box, first, second, third and fourth trapezoidal side plates are sequentially and bendably connected in a head-to-tail mode to form a loading cavity; a first inner plate is reversibly arranged on the upper bottom of the first trapezoidal side plate, a second inner plate is reversibly arranged on the upper bottom of the third trapezoidal side plate, a first shielding plate is reversibly arranged on the upper bottom of the second trapezoidal side plate, a second shielding plate is reversibly arranged on the upper bottom of the fourth trapezoidal side plate, and the first inner plate, the first shielding plate, the second inner plate and the second shielding plate surround a loading port to enable a top assembly to open or shield the loading port; a third inner plate is reversibly arranged on the lower bottom of the first trapezoidal side plate, a fourth inner plate is reversibly arranged on the lower bottom of the third trapezoidal side plate, a first bottom plate is reversibly arranged on the lower bottom of the second trapezoidal side plate, and a second bottom plate is reversibly arranged on the lower bottom of the fourth trapezoidal side plate; and a buffer assembly is arranged on at least one of the first, second, third and fourth inner plates.

Description

Technical Field

[0001] This application relates to the technical field of logistics packaging, and in particular to a packaging box. Background Technology

[0002] With the booming development of e-commerce, the use of express delivery boxes, as the core protective carrier during the transportation of goods, is increasing daily, and the requirements for packaging efficiency are also constantly rising. To meet the space optimization needs of packaging boxes during warehousing and transportation, express delivery boxes generally adopt a foldable design, that is, they are folded to compress their volume when not in use and unfolded to their original shape when needed. However, traditional foldable express delivery boxes provide poor protection for the items inside, affecting the safety of the goods during transportation. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of packaging box to address the problem that traditional foldable express packaging boxes provide poor protection for the items inside, thus affecting the safety of the items during transportation.

[0004] The technical solution is as follows:

[0005] One embodiment provides a packaging box, comprising:

[0006] A side assembly, comprising a first trapezoidal side plate, a second trapezoidal side plate, a third trapezoidal side plate, and a fourth trapezoidal side plate, wherein the first trapezoidal side plate, the second trapezoidal side plate, the third trapezoidal side plate, and the fourth trapezoidal side plate are connected end-to-end in a bendable manner to form a loading cavity;

[0007] The top assembly includes a first inner plate, a second inner plate, a first shielding plate, and a second shielding plate. The first inner plate is rotatably disposed on the upper bottom of the first trapezoidal side plate, the second inner plate is rotatably disposed on the upper bottom of the third trapezoidal side plate, the first shielding plate is rotatably disposed on the upper bottom of the second trapezoidal side plate, and the second shielding plate is rotatably disposed on the upper bottom of the fourth trapezoidal side plate. The first inner plate, the first shielding plate, the second inner plate, and the second shielding plate form a loading port communicating with the loading cavity, so that the top assembly can open or cover the loading port.

[0008] The bottom assembly includes a third inner plate, a fourth inner plate, a first bottom plate, and a second bottom plate. The third inner plate is rotatably disposed on the bottom of the first trapezoidal side plate, the fourth inner plate is rotatably disposed on the bottom of the third trapezoidal side plate, the first bottom plate is rotatably disposed on the bottom of the second trapezoidal side plate, and the second bottom plate is rotatably disposed on the bottom of the fourth trapezoidal side plate.

[0009] A buffer assembly is disposed in at least one of the first inner plate, the second inner plate, the third inner plate, and the fourth inner plate.

[0010] The aforementioned packaging box features four trapezoidal side panels: the first, second, third, and fourth trapezoidal side panels. These panels can be bent sequentially, allowing the box to be folded for storage and unfolded. When delivered to the user, the box is folded, with the inner surfaces of the first, second, and third trapezoidal side panels fitting together to compress the volume. When the user needs to unfold the box for use, the first and second trapezoidal side panels are unfolded, along with the third and fourth trapezoidal side panels, to form a loading cavity. The third and fourth inner panels are then flipped towards the loading cavity, and the first and second bottom panels are flipped towards the loading cavity to form the bottom of the cavity. The user places items into the loading cavity through the loading opening, and then flips the first and second inner panels towards the loading cavity, followed by flipping the first and second concealing panels towards the loading cavity to conceal the loading opening, thus packing the items. The unfolded packaging box is truncated pyramidal in shape. This pyramidal shape not only makes the packaging box less prone to tipping over, but also prevents workers from inverting the packaging box and damaging the goods. The cushioning components located in at least one of the first, second, third, and fourth inner panels can cushion the goods in the loading cavity, preventing damage to the goods due to movement or external impact, thus improving the packaging box's protective effect on the goods and enhancing the safety of the goods during transportation.

[0011] In one embodiment, the cushioning assembly includes a first cushioning pad and a second cushioning pad, the first cushioning pad being disposed on the inner side of the first inner plate and the second cushioning pad being disposed on the inner side of the second inner plate.

[0012] In one embodiment, both the first inner plate and the second inner plate are trapezoidal, the bottom of the first inner plate is flipped to the top of the first trapezoidal side plate, the bottom of the second inner plate is flipped to the top of the third trapezoidal side plate, the shape of the first buffer pad matches the shape of the first inner plate, and the shape of the second buffer pad matches the shape of the second inner plate.

[0013] In one embodiment, the cushioning assembly includes a third cushioning pad and a fourth cushioning pad, the third cushioning pad being disposed on the inner side of the third inner plate, and the fourth cushioning pad being disposed on the inner side of the fourth inner plate.

[0014] In one embodiment, the packaging box further includes a first connector and a second connector, the first connector being disposed on the inner side of the first shielding plate and the second connector being disposed on the outer side of the second shielding plate, wherein the first connector is connected to the second connector when the top assembly shields the loading port.

[0015] In one embodiment, the first connector is disposed on the side edge of the first shielding plate away from the second trapezoidal side plate, and the second connector is disposed on the side edge of the second shielding plate close to the fourth trapezoidal side plate.

[0016] Or / and, the first connector has a first adhesive surface, and the second connector has a second adhesive surface, wherein when the top assembly covers the loading port, the first adhesive surface and the second adhesive surface are bonded together.

[0017] In one embodiment, the packaging box further includes a third connector and a fourth connector. The third connector is disposed on the inner side of the first base plate, and the fourth connector is disposed on the outer side of the second base plate. When the bottom assembly covers the side of the loading cavity away from the loading port, the third connector is connected to the fourth connector.

[0018] In one embodiment, the third connector is disposed on the side edge of the first base plate away from the second trapezoidal side plate, and the fourth connector is disposed on the side edge of the second base plate close to the fourth trapezoidal side plate;

[0019] Or / and, the third connector has a third adhesive surface, and the fourth connector has a fourth adhesive surface. When the bottom assembly covers the side of the loading cavity away from the loading port, the third adhesive surface is bonded to the fourth adhesive surface.

[0020] In one embodiment, the first shielding plate has a communicating hole, and the packaging box also includes a handle, which is disposed on the outer side of the second shielding plate. When the top component shields the loading port, the handle passes through the communicating hole.

[0021] In one embodiment, at least one of the first trapezoidal side plate, the second trapezoidal side plate, the third trapezoidal side plate, and the fourth trapezoidal side plate is provided with a handle hole. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the packaging box laid flat in one embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the loading port being closed when the packaging box is in the unfolded state, according to one embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the loading port being open when the packaging box is unfolded in one embodiment of this application.

[0026] Figure 4 This is a top view of the packaging box in one embodiment of this application.

[0027] Figure 5 This is a bottom view of the packaging box in one embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the packaging box in a folded state according to one embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the packaging box in a folded state at another angle according to one embodiment of this application.

[0030] Attached image annotations:

[0031] 110. First trapezoidal side plate; 120. Second trapezoidal side plate; 130. Third trapezoidal side plate; 140. Fourth trapezoidal side plate; 150. Loading cavity; 160. Handle hole; 170. Fixing part; 210. First inner plate; 220. Second inner plate; 230. First shielding plate; 231. Connecting hole; 240. Second shielding plate; 241. Handle; 250. Loading port; 310. Third inner plate; 320. Fourth inner plate; 330. First bottom plate; 340. Second bottom plate; 350. Through port; 400. Buffer assembly; 410. First buffer pad; 420. Second buffer pad; 430. Third buffer pad; 440. Fourth buffer pad; 510. First connector; 520. Second connector; 530. Third connector; 540. Fourth connector. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] Please see Figures 1 to 3 as well as Figure 6 and Figure 7 One embodiment of this application provides a packaging box, including a side assembly, a top assembly, a bottom assembly, and a cushioning assembly 400. The side assembly includes a first trapezoidal side plate 110, a second trapezoidal side plate 120, a third trapezoidal side plate 130, and a fourth trapezoidal side plate 140. The first trapezoidal side plate 110, the second trapezoidal side plate 120, the third trapezoidal side plate 130, and the fourth trapezoidal side plate 140 are sequentially connected end-to-end in a bendable manner to form a loading cavity 150. The top assembly includes a first inner plate 210, a second inner plate 220, a first shielding plate 230, and a second shielding plate 240. The first inner plate 210 is rotatably disposed on the upper bottom of the first trapezoidal side plate 110, the second inner plate 220 is rotatably disposed on the upper bottom of the third trapezoidal side plate 130, the first shielding plate 230 is rotatably disposed on the upper bottom of the second trapezoidal side plate 120, and the second shielding plate 240 is rotatably disposed on the upper bottom of the second trapezoidal side plate 120. The top assembly is foldably disposed on the upper bottom of the fourth trapezoidal side plate 140. The first inner plate 210, the first shielding plate 230, the second inner plate 220, and the second shielding plate 240 form a loading port 250 communicating with the loading cavity 150, so that the top assembly can open or cover the loading port 250. The bottom assembly includes a third inner plate 310, a fourth inner plate 320, a first bottom plate 330, and a second bottom plate 340. The third inner plate 310 is foldably disposed on the lower bottom of the first trapezoidal side plate 110, the fourth inner plate 320 is foldably disposed on the lower bottom of the third trapezoidal side plate 130, the first bottom plate 330 is foldably disposed on the lower bottom of the second trapezoidal side plate 120, and the second bottom plate 340 is foldably disposed on the lower bottom of the fourth trapezoidal side plate 140. The buffer assembly 400 is disposed on at least one of the first inner plate 210, the second inner plate 220, the third inner plate 310, and the fourth inner plate 320.

[0039] The aforementioned packaging box, with its first trapezoidal side panel 110, second trapezoidal side panel 120, third trapezoidal side panel 130, and fourth trapezoidal side panel 140, can be bent sequentially, thus enabling the packaging box to be folded and unfolded. When delivered to the user, the packaging box is in a folded state. At this time, the inner surface of the first trapezoidal side panel 110 is fitted with the inner surface of the second trapezoidal side panel 120, and the inner surface of the third trapezoidal side panel 130 is fitted with the inner surface of the fourth trapezoidal side panel 140 to compress the volume. When the user needs to unfold the packaging box for use, the first trapezoidal side panel 110 and second trapezoidal side panel 120 are unfolded, and the third trapezoidal side panel 130 and fourth trapezoidal side panel 140 are unfolded to form a loading cavity 150. Then, the third trapezoidal side panel 130 is unfolded... The inner panel 310 and the fourth inner panel 320 are flipped toward the loading cavity 150, and then the first bottom panel 330 and the second bottom panel 340 are flipped toward the loading cavity 150 to form the bottom of the loading cavity 150. The user puts the item into the loading cavity 150 through the loading port 250. Then the first inner panel 210 and the second inner panel 220 are flipped toward the loading cavity 150, and then the first shielding plate 230 and the second shielding plate 240 are flipped toward the loading cavity 150 to shield the loading port 250, thereby realizing the packaging of the item. The unfolded packaging box is truncated pyramidal in shape. The pyramidal shape not only makes the packaging box less likely to tip over, but also prevents workers from inverting the packaging box and damaging the goods. The buffer component 400 provided in at least one of the first inner plate 210, the second inner plate 220, the third inner plate 310 and the fourth inner plate 320 can buffer the goods in the loading cavity 150, prevent the goods from being damaged due to movement or external impact, improve the protection effect of the packaging box on the goods, and improve the safety of the goods during transportation.

[0040] Furthermore, when the packaging box is unfolded, the frustum-shaped packaging box causes the cross-sectional area of ​​the loading cavity 150 to gradually increase from top to bottom. The items placed in the loading cavity 150 will be further away from the side wall of the loading cavity 150. When the packaging box is subjected to external impact, the side wall of the packaging box can have a larger deformation space without contacting the items, thereby improving the protection effect on the items.

[0041] For explanation, the loading cavity 150 formed by the first trapezoidal side plate 110, the second trapezoidal side plate 120, the third trapezoidal side plate 130 and the fourth trapezoidal side plate 140 has a loading port 250 on one side and a through port 350 on the other side. The top component is flipped to cover the loading port 250, and the bottom component is flipped to cover the through port 350 on the side of the loading cavity 150 away from the loading port 250.

[0042] Please see Figure 1In one embodiment, the side assembly further includes a fixing part 170, which is disposed on the edge of the fourth trapezoidal side plate 140 away from the third trapezoidal side plate 130. The side of the fourth trapezoidal side plate 140 away from the third trapezoidal side plate 130 is connected to the side of the first trapezoidal side plate 110 away from the second trapezoidal side plate 120 through the fixing part 170, so that the first trapezoidal side plate 110, the second trapezoidal side plate 120, the third trapezoidal side plate 130 and the fourth trapezoidal side plate 140 are connected end to end in sequence.

[0043] Furthermore, the fixing part 170 and the first trapezoidal side plate 110 can be heat-fused together using ultrasonic or other methods.

[0044] Further, please refer to Figure 6 and Figure 7 When the packaging box is in the folded storage state, the first inner panel 210, the second inner panel 220, the first shielding plate 230, and the second shielding plate 240 flip outwards toward the loading cavity 150, while the third inner panel 310, the fourth inner panel 320, the first bottom plate 330, and the second bottom plate 340 flip inwards toward the loading cavity 150. The third inner panel 310, the fourth inner panel 320, the first bottom plate 330, and the second bottom plate 340 overlap with the side components. It can be understood that in other embodiments, when the packaging box is in the folded storage state, the first inner panel 210, the second inner panel 220, the first shielding plate 230, and the second shielding plate 240 can also flip inwards toward the loading cavity 150. Correspondingly, the third inner panel 310, the fourth inner panel 320, the first bottom plate 330, and the second bottom plate 340 flip outwards toward the loading cavity 150. This will not be elaborated here.

[0045] Please see Figure 1 In one embodiment, the upper bottom of the first trapezoidal side plate 110, the upper bottom of the second trapezoidal side plate 120, the upper bottom of the third trapezoidal side plate 130, and the upper bottom of the fourth trapezoidal side plate 140 are all located at the upper part of the packaging box. Correspondingly, the lower bottom of the first trapezoidal side plate 110, the lower bottom of the second trapezoidal side plate 120, the lower bottom of the third trapezoidal side plate 130, and the lower bottom of the fourth trapezoidal side plate 140 are all located at the lower part of the packaging box, so that the four sides of the unfolded packaging box are all trapezoidal and the packaging box as a whole is frustum-shaped. Further details are omitted here.

[0046] In some embodiments, the buffer assembly 400 can be an elastic buffer pad, such as a foam pad or a rubber pad. The buffer assembly 400 can not only absorb the impact of the outside of the packaging box on the items, but also buffer the items inside the loading cavity 150 when the packaging box is bumped, so as to avoid damage to the items.

[0047] Please see Figure 1 , Figure 3 and Figure 4In one embodiment, the buffer assembly 400 includes a first buffer pad 410 and a second buffer pad 420. The first buffer pad 410 is disposed on the inner side of the first inner plate 210, and the second buffer pad 420 is disposed on the inner side of the second inner plate 220.

[0048] The first buffer pad 410 located on the inner side of the first inner plate 210 and the second buffer pad 420 located on the inner side of the second inner plate 220 can cushion the upper part of the item, prevent the item from being damaged by impact from above, and improve the safety of the item during transportation.

[0049] Furthermore, when the first inner plate 210 and the second inner plate 220 are flipped to the loading port 250, the side of the first inner plate 210 away from the first trapezoidal side plate 110 and the side of the second inner plate 220 away from the third trapezoidal side plate 130 are positioned opposite each other. The first buffer pad 410 located on the inner side of the first inner plate 210 and the second buffer pad 420 located on the inner side of the second inner plate 220 are laid flat on the upper part of the loading cavity 150 to prevent the items from being damaged by impacts from above.

[0050] In some embodiments, the first buffer pad 410 can be bonded to the inner side of the first inner plate 210 by means of adhesive, such as double-sided adhesive, pressure-sensitive adhesive or hot melt adhesive, etc., which are not specifically limited here; the second buffer pad 420 is similar to the first buffer pad 410, and will not be described in detail here.

[0051] For illustrative purposes, the inner side of the first inner plate 210 refers to the side of the first inner plate 210 facing the loading cavity 150 when the top assembly covers the loading cavity 150, and the same applies to the inner side of the second inner plate 220. It can be understood that the inner side of the plate referred to in the following embodiments refers to the side facing the loading cavity 150 when the current plate covers the loading cavity 150, and will not be described again.

[0052] Please see Figure 3 In one embodiment, both the first inner plate 210 and the second inner plate 220 are trapezoidal. The bottom of the first inner plate 210 is flipped to the top of the first trapezoidal side plate 110, and the bottom of the second inner plate 220 is flipped to the top of the third trapezoidal side plate 130. The shape of the first buffer pad 410 matches the shape of the first inner plate 210, and the shape of the second buffer pad 420 matches the shape of the second inner plate 220.

[0053] When the packaging box is in the folded storage state, the waist of the trapezoidal first inner panel 210 and the bottom of the first inner panel 210 are set at an angle, so that the first inner panel 210 provides a clearance space for the second shielding plate 240 on one side, thereby avoiding the first inner panel 210 and the second shielding plate 240 from obstructing each other during the flipping process, and improving the smoothness of the packaging box when folding or unfolding.

[0054] Similarly, the waist of the trapezoidal second inner panel 220 is set at an angle to the bottom of the second inner panel 220, so that the second inner panel 220 provides clearance space for the first shielding plate 230 on one side, thereby avoiding mutual obstruction between the second inner panel 220 and the first shielding plate 230 during the flipping process, and improving the smoothness of the packaging box when folding or unfolding.

[0055] Understandably, in the trapezoidal plate (such as the first trapezoidal side plate 110, the first inner plate 210, etc.) referred to in this article, the upper base refers to the relatively shorter side of the two parallel sides, the lower base refers to the relatively longer side, and the waist refers to the two non-parallel sides, which will not be elaborated further.

[0056] Please see Figure 1 and Figure 4 In one embodiment, the buffer assembly 400 includes a third buffer pad 430 and a fourth buffer pad 440, the third buffer pad 430 being disposed on the inner side of the third inner plate 310 and the fourth buffer pad 440 being disposed on the inner side of the fourth inner plate 320.

[0057] The third buffer pad 430 located on the inner side of the third inner plate 310 and the fourth buffer pad 440 located on the inner side of the fourth inner plate 320 can cushion the lower part of the item, preventing the item from being damaged by bumps or impacts from below during transportation, and improving the safety of the item during transportation.

[0058] Further, please refer to Figure 4 When the third inner plate 310 and the fourth inner plate 320 are flipped to the opening 350, the side of the third inner plate 310 away from the first trapezoidal side plate 110 and the side of the fourth inner plate 320 away from the third trapezoidal side plate 130 are arranged opposite each other. The third buffer pad 430 located on the inner side of the third inner plate 310 and the fourth buffer pad 440 located on the inner side of the fourth inner plate 320 are laid flat on the lower part of the loading cavity 150 to buffer the items.

[0059] Please see Figure 1 In one embodiment, the packaging box further includes a first connector 510 and a second connector 520. The first connector 510 is disposed on the inner side of the first shielding plate 230, and the second connector 520 is disposed on the outer side of the second shielding plate 240. When the top component shields the loading port 250, the first connector 510 is connected to the second connector 520.

[0060] When it is necessary to cover the loading port 250, firstly, the first inner plate 210 and the second inner plate 220 are flipped to the loading port 250, then the first covering plate 230 and the second covering plate 240 are flipped to the loading port 250. Subsequently, the first connecting member 510 is connected to the second connecting member 520 to prevent the first covering plate 230 and the second covering plate 240 from flipping and affecting the reliability of the covering of the loading port 250, preventing items from falling out of the loading cavity 150 during transportation, simplifying the sealing process of the packaging box, and improving operational efficiency.

[0061] Optionally, the connection between the first connector 510 and the second connector 520 can be by adhesive bonding or by snap-fit ​​connection, as long as the positioning between the first shielding plate 230 and the second shielding plate 240 is achieved when the packaging box is unfolded. This will not be elaborated further here.

[0062] Please see Figure 1 In one embodiment, the first connector 510 is disposed on the side edge of the first shielding plate 230 away from the second trapezoidal side plate 120, and the second connector 520 is disposed on the side edge of the second shielding plate 240 near the fourth trapezoidal side plate 140.

[0063] When covering the loading port 250, the second cover plate 240 is first flipped to the loading port 250, and then the first cover plate 230 is flipped to the loading port 250. The first connector 510 arranged on the side of the first cover plate 230 away from the second trapezoidal side plate 120 can be connected to the second connector 520 arranged on the side of the second cover plate 240 close to the fourth trapezoidal side plate 140, so as to improve the covering stability of the top assembly when it is impacted by the items in the loading cavity 150, and prevent the items from falling out of the loading port 250 during transportation.

[0064] As an explanation, the first connector 510 is arranged on the side edge of the first shielding plate 230 away from the second trapezoidal side plate 120. When the first connector 510 is connected to the second connector 520, it can prevent the side edge of the first shielding plate 230 away from the second trapezoidal side plate 120 from warping, which would cause the top assembly to have poor shielding stability over the loading port 250, thereby preventing items from falling out of the loading port 250 during transportation.

[0065] Further, please refer to Figure 1 The size of the first shielding plate 230 is the same as the size of the loading port 250, so that the first shielding plate 230 can effectively shield the loading port 250.

[0066] Furthermore, the width of the second shielding plate 240 is the same as the size of the loading port 250, thereby improving the shielding effect of the top assembly on the loading port 250.

[0067] As an embodiment that can be implemented simultaneously with or separately from the above embodiments, the first connector 510 is provided with a first adhesive surface and the second connector 520 is provided with a second adhesive surface. When the top component covers the loading port 250, the first adhesive surface and the second adhesive surface are bonded together.

[0068] The connection between the first adhesive surface and the second adhesive surface is achieved by bonding the first adhesive surface and the second adhesive surface, which is low in cost and easy to operate.

[0069] Please see Figure 1 In one embodiment, the packaging box further includes a third connector 530 and a fourth connector 540. The third connector 530 is disposed on the inner side of the first base plate 330, and the fourth connector 540 is disposed on the outer side of the second base plate 340. When the bottom assembly covers the side of the loading cavity 150 away from the loading port 250, the third connector 530 and the fourth connector 540 are connected.

[0070] When it is necessary to cover the opening 350 on the side of the loading cavity 150 away from the loading port 250, first flip the third inner plate 310 and the fourth inner plate 320 to the loading port 250, then flip the first bottom plate 330 and the second bottom plate 340 to the side of the loading cavity 150 away from the loading port 250, and then connect the third connector 530 to the fourth connector 540 to prevent the first bottom plate 330 and the second bottom plate 340 from flipping and affecting the covering reliability of the loading cavity 150, prevent items from falling out of the loading cavity 150 during transportation, simplify the sealing process of the packaging box, and improve operational efficiency.

[0071] Optionally, the connection between the third connector 530 and the fourth connector 540 can be by adhesive bonding or by snap-fit ​​connection, as long as the positioning between the first shielding plate 230 and the second shielding plate 240 is achieved when the packaging box is unfolded. This will not be elaborated further here.

[0072] Please see Figure 1 In one embodiment, a third connector 530 is disposed on the side edge of the first base plate 330 away from the second trapezoidal side plate 120, and a fourth connector 540 is disposed on the side edge of the second base plate 340 near the fourth trapezoidal side plate 140.

[0073] When covering the opening 350 on the side of the loading cavity 150 away from the loading port 250, first flip the second base plate 340 to the loading port 250, then flip the first base plate 330 to the loading port 250. The third connector 530 arranged on the side of the first base plate 330 away from the second trapezoidal side plate 120 can be connected to the fourth connector 540 arranged on the side of the second base plate 340 near the fourth trapezoidal side plate 140, so as to improve the support stability of the bottom assembly for the items in the loading cavity 150 and prevent the items from falling from the loading port 250 during transportation.

[0074] As an explanation, the third connector 530 is arranged on the edge of the first base plate 330 away from the second trapezoidal side plate 120. When the third connector 530 is connected to the fourth connector 540, it can prevent the edge of the first base plate 330 away from the second trapezoidal side plate 120 from warping, which would cause the bottom assembly to have poor shielding stability on the side of the loading cavity 150 away from the loading port 250, thereby preventing items from falling out of the loading cavity 150 during transportation.

[0075] Further, please refer to Figure 1 The size of the first base plate 330 is the same as the size of the opening 350 on the side of the loading cavity 150 away from the loading port 250, so that the first base plate 330 can effectively cover the opening 350 on the side of the loading cavity 150 away from the loading port 250.

[0076] Furthermore, the second base plate 340 has the same dimensions as the opening 350 on the side of the loading cavity 150 away from the loading port 250, thereby improving the shielding effect of the bottom assembly on the loading cavity 150.

[0077] As an embodiment that can be implemented simultaneously with or separately from the above embodiments, the third connector 530 is provided with a third adhesive surface and the fourth connector 540 is provided with a fourth adhesive surface. When the bottom component covers the side of the loading cavity 150 away from the loading port 250, the third adhesive surface and the fourth adhesive surface are bonded together.

[0078] The connection between the third connector 530 and the fourth connector 540 is achieved by bonding between the third adhesive surface and the fourth adhesive surface, which is low in implementation cost and easy to operate.

[0079] Optionally, the first and second adhesive surfaces, as well as the third and fourth adhesive surfaces, can be bonded using Velcro or pressure-sensitive adhesive, etc., without specific limitations. Preferably, the first and second adhesive surfaces, as well as the third and fourth adhesive surfaces, are bonded using Velcro, so that the packaging box can be used as a reusable box, and the folding, storage, and unfolding processes are faster.

[0080] Please see Figure 1 and Figure 2 In one embodiment, the first shielding plate 230 has a connecting hole 231, and the packaging box also includes a handle 241. The handle 241 is located on the outer side of the second shielding plate 240. When the top component shields the loading port 250, the handle 241 passes through the connecting hole 231.

[0081] When it is necessary to cover the loading port 250, first flip the second cover plate 240 to the loading port 250, and then flip the first cover plate 230 to the loading port 250. In this way, the handle 241 provided on the outer side of the second cover plate 240 can pass through the connecting hole 231 opened in the first cover plate 230, so that the user can move the packaging box by pulling the handle 241.

[0082] Further, please refer to Figure 1 and Figure 2 The handle 241 is a carrying strap, with its two ends spaced through the through holes on the outer side of the second shielding plate 240. The connecting hole 231 is elongated and adapted to the length of the carrying strap so that the carrying strap can pass through the connecting hole 231.

[0083] Please see Figure 1 and Figure 2 In one embodiment, at least one of the first trapezoidal side plate 110, the second trapezoidal side plate 120, the third trapezoidal side plate 130 and the fourth trapezoidal side plate 140 is provided with a handle hole 160.

[0084] Users can move the packaging box through the handle hole 160 on the side component, which is low-cost and improves the practicality of the packaging box.

[0085] Furthermore, when there are two or more handle holes 160, at least one handle hole 160 should be provided on each of the opposite sides of the side assembly. For example, in Figure 1 In the illustrated embodiment, two handle holes 160 are provided, one handle hole 160 is provided on the first trapezoidal side plate 110, and the other handle hole 160 is provided on the third trapezoidal side plate 130, so that the user can lift the packaging box from both sides; it is understood that in other embodiments, the two handle holes 160 may also be provided on the second trapezoidal side plate 120 and the fourth trapezoidal side plate 140 respectively, which will not be described in detail here.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A packaging box, characterized in that, include: A side assembly, comprising a first trapezoidal side plate, a second trapezoidal side plate, a third trapezoidal side plate, and a fourth trapezoidal side plate, wherein the first trapezoidal side plate, the second trapezoidal side plate, the third trapezoidal side plate, and the fourth trapezoidal side plate are connected end-to-end in a bendable manner to form a loading cavity; The top assembly includes a first inner plate, a second inner plate, a first shielding plate, and a second shielding plate. The first inner plate is rotatably disposed on the upper bottom of the first trapezoidal side plate, the second inner plate is rotatably disposed on the upper bottom of the third trapezoidal side plate, the first shielding plate is rotatably disposed on the upper bottom of the second trapezoidal side plate, and the second shielding plate is rotatably disposed on the upper bottom of the fourth trapezoidal side plate. The first inner plate, the first shielding plate, the second inner plate, and the second shielding plate form a loading port communicating with the loading cavity, so that the top assembly can open or cover the loading port. The bottom assembly includes a third inner plate, a fourth inner plate, a first bottom plate, and a second bottom plate. The third inner plate is rotatably disposed on the bottom of the first trapezoidal side plate, the fourth inner plate is rotatably disposed on the bottom of the third trapezoidal side plate, the first bottom plate is rotatably disposed on the bottom of the second trapezoidal side plate, and the second bottom plate is rotatably disposed on the bottom of the fourth trapezoidal side plate. A buffer assembly is disposed in at least one of the first inner plate, the second inner plate, the third inner plate, and the fourth inner plate.

2. The packaging box according to claim 1, characterized in that, The buffer assembly includes a first buffer pad and a second buffer pad, wherein the first buffer pad is disposed on the inner side of the first inner plate and the second buffer pad is disposed on the inner side of the second inner plate.

3. The packaging box according to claim 2, characterized in that, Both the first inner plate and the second inner plate are trapezoidal. The bottom of the first inner plate is flipped to the top of the first trapezoidal side plate, and the bottom of the second inner plate is flipped to the top of the third trapezoidal side plate. The shape of the first buffer pad matches the shape of the first inner plate, and the shape of the second buffer pad matches the shape of the second inner plate.

4. The packaging box according to claim 1, characterized in that, The buffer assembly includes a third buffer pad and a fourth buffer pad, the third buffer pad being disposed on the inner side of the third inner plate and the fourth buffer pad being disposed on the inner side of the fourth inner plate.

5. The packaging box according to claim 1, characterized in that, The packaging box also includes a first connector and a second connector. The first connector is located on the inner side of the first shielding plate, and the second connector is located on the outer side of the second shielding plate. When the top component covers the loading port, the first connector is connected to the second connector.

6. The packaging box according to claim 5, characterized in that, The first connector is disposed on the side edge of the first shielding plate away from the second trapezoidal side plate, and the second connector is disposed on the side edge of the second shielding plate close to the fourth trapezoidal side plate; Or / and, the first connector has a first adhesive surface, and the second connector has a second adhesive surface, wherein when the top assembly covers the loading port, the first adhesive surface and the second adhesive surface are bonded together.

7. The packaging box according to claim 1, characterized in that, The packaging box also includes a third connector and a fourth connector. The third connector is located on the inner side of the first base plate, and the fourth connector is located on the outer side of the second base plate. When the bottom assembly covers the side of the loading cavity away from the loading port, the third connector is connected to the fourth connector.

8. The packaging box according to claim 7, characterized in that, The third connector is arranged on the edge of the first base plate away from the second trapezoidal side plate, and the fourth connector is arranged on the edge of the second base plate close to the fourth trapezoidal side plate; Or / and, the third connector has a third adhesive surface, and the fourth connector has a fourth adhesive surface. When the bottom assembly covers the side of the loading cavity away from the loading port, the third adhesive surface is bonded to the fourth adhesive surface.

9. The packaging box according to claim 1, characterized in that, The first shielding plate has a connecting hole, and the packaging box also includes a handle. The handle is located on the outer side of the second shielding plate. When the top component covers the loading port, the handle passes through the connecting hole.

10. The packaging box according to claim 1, characterized in that, At least one of the first trapezoidal side plate, the second trapezoidal side plate, the third trapezoidal side plate, and the fourth trapezoidal side plate is provided with a handle hole.

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