Buffering packing material structure and packing box structure

Abstract

The invention discloses a buffering packing material structure and a packing box structure. The buffering packing material structure comprises a base plate, a lower plate and a first foldable area. The substrate is provided with a connecting side edge and two opposite edges; the lower plate is connected to the connecting side edge; the first foldable area is arranged on the base plate, and the base plate and the lower plate are used for being oppositely bent along the first foldable area, so that the base plate is approximately perpendicular to the lower plate; the maximum width A1 of the lower plate is smaller than or equal to the maximum width A2 of the base plate. The maximum width A2 of the substrate is less than or equal to the internal width B2 of the accommodating space; the maximum length A3 of the substrate is less than or equal to the internal length B1 of the accommodating space; and the maximum length A4 of the lower plate is less than or equal to the internal height B3 of the accommodating space. According to the buffering packing material structure and the packing box structure, when the base plate and the lower plate meet the specific size condition, the buffering packing material structure can be effectively inserted into the gap between the target object and the box body so as to fix the position of the target object in the box body and prevent the target object from being damaged due to shaking and friction in the carrying process.

Description

Technical Field

[0001] The present invention relates to a buffer packaging material structure and a packaging box structure, and particularly to a buffer packaging material structure and a packaging box structure that are convenient to use and can effectively fix the target item. Background Art

[0002] The packaging materials for commodities not only have the function of transportation protection, but also are helpful for promoting marketing and increasing sales. In view of the rising awareness of environmental protection, the use of plastic-free packaging materials made of non-plastic materials has gradually become the mainstream use trend in related industries.

[0003] To solve the above problems, buffer packaging materials made of paper materials have gradually been applied to commodity packaging to reduce the impact of discarded plastic packaging materials on the environment. However, the paper materials themselves have a certain thickness specification. Directly applying commercially available paper materials to commodity packaging cannot completely fill or fit the gap between the target item and the outer box, resulting in a space still existing between the target item and the outer box, and there is a risk of damage due to the shaking and friction of the target item during handling.

[0004] In view of this, developing a buffer packaging material structure and a packaging box structure that take into account environmental protection and commercial requirements and can effectively fix the target item has become the goal that the relevant industry is committed to researching. Summary of the Invention

[0005] The present invention provides a buffer packaging material structure and a packaging box structure. The buffer packaging material structure can be effectively inserted and filled in the gap between the target item and the box body by the relative bending of the base plate and the lower plate along the first foldable area, and the accommodation space of the base plate, the lower plate and the box body satisfies a specific size ratio, preventing the target item from shaking and rubbing during handling. When the user wants to take out the target item from the box body, the user can take out the buffer packaging material structure by pulling the base plate, so as to provide an operation space for the user to take out the target item from the box body, making the taking and placing of the target item easier. Therefore, the buffer packaging material structure and the packaging box structure of the present invention not only have excellent protection and buffering effects, but also have excellent usability, and have application potential in the relevant market.

[0006] One embodiment of the present invention is to provide a buffer packaging structure, which is applied in an accommodation space. The buffer packaging structure includes a substrate, a lower plate, and a first foldable area. The substrate has a connecting side edge and two opposite sides, where the connecting side edge is respectively connected to the two opposite sides, and the two opposite sides are opposite to each other. The lower plate is connected to the connecting side edge. The first foldable area is arranged on the substrate, where the substrate and the lower plate are used to bend relatively along the first foldable area, so that the substrate and the lower plate are generally perpendicular. The maximum width of the lower plate is A1, the maximum width of the substrate is A2, the maximum length of the substrate is A3, the maximum length of the lower plate is A4, the accommodation space has an internal length, an internal width, and an internal height, the internal length is B1, the internal width is B2, and the internal height is B3, which satisfy the following conditions: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3.

[0007] Another embodiment of the present invention is to provide a packaging box structure, which includes a box body and at least one buffer packaging structure. The box body has an accommodation space, where the accommodation space has an internal length, an internal width, and an internal height. At least one buffer packaging structure is detachably arranged in the accommodation space, and at least one buffer packaging structure is located between at least one target item and the box body, where the at least one buffer packaging structure includes a substrate, a lower plate, and a first foldable area. The substrate has a connecting side edge and two opposite sides, where the connecting side edge is respectively connected to the two opposite sides, and the two opposite sides are opposite to each other. The lower plate is connected to the connecting side edge. The first foldable area is arranged on the substrate, where the substrate and the lower plate are used to bend relatively along the first foldable area, so that the substrate and the lower plate are generally perpendicular. The maximum width of the lower plate is A1, the maximum width of the substrate is A2, the maximum length of the substrate is A3, the maximum length of the lower plate is A4, the internal length of the accommodation space is B1, the internal width is B2, and the internal height is B3, which satisfy the following conditions: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3. Description of the Drawings

[0008] To make the above and other objects, features, advantages and embodiments of the present invention more obvious and understandable, the description of the drawings is as follows:

[0009] Figure 1 A schematic diagram showing the buffer packaging structure of the first embodiment of the present invention;

[0010] Figure 2 Show Figure 1 A schematic diagram of the box body including the accommodation space to which the buffer packaging structure is applied;

[0011] Figure 3 A schematic diagram showing the packaging box structure of the second embodiment of the present invention;

[0012] Figure 4Schematic diagram showing the buffer packaging material structure of the third embodiment of the present invention;

[0013] Figure 5 Showing Figure 4 Schematic diagram of the folded buffer packaging material structure;

[0014] Figure 6 Schematic diagram showing the packaging box structure of the fourth embodiment of the present invention;

[0015] Figure 7 Schematic diagram showing the buffer packaging material structure of the fifth embodiment of the present invention;

[0016] Figure 8 Showing Figure 7 Schematic diagram of the folded buffer packaging material structure; and

[0017] Figure 9 Schematic diagram showing the packaging box structure of the sixth embodiment of the present invention.

[0018] Description of main component symbols:

[0019] 100, 300, 500 Buffer packaging material structure

[0020] 101, 301, 501 First foldable area

[0021] 110, 310, 510 Substrate

[0022] 111, 311, 511 Connecting side

[0023] 112, 312, 512 Opposite side

[0024] 113, 313, 513 Notch

[0025] 120, 320, 520 Lower plate

[0026] 200, 400, 600 Packaging box structure

[0027] 302, 502 Second foldable area

[0028] 303 First frame

[0029] 321, 521 Lower plate body

[0030] 322, 522 First part

[0031] 323, 523 Second part

[0032] 324, 524 Lower plate side piece

[0033] 325, 525 Fold line

[0034] 330, 530 First side plate

[0035] 331, 531 First free edge

[0036] 340, 540 First connecting plate

[0037] 350, 550 Second side plate

[0038] 351, 551 Second free edge

[0039] 360, 560 Second connecting plate

[0040] 370 End plate

[0041] 381, 581 Plug-in

[0042] 382, 582 Slot

[0043] 383 Clip

[0044] 384 Through hole

[0045] 385 Outer convex arc area

[0046] 504 Second frame

[0047] 505 Third frame

[0048] 532 First group of pieces

[0049] 533 First turning piece

[0050] 534 First connecting piece

[0051] 552 Second group of pieces

[0052] 553 Second turning piece

[0053] 554 Second connecting piece

[0054] 10 Box body

[0055] 11 Accommodating space

[0056] 12 Upper cover

[0057] 20 Target item

[0058] A1 Maximum width of the lower plate

[0059] A11 Width of the first part

[0060] A2 Maximum width of the substrate

[0061] A3 Maximum length of the substrate

[0062] A4 Maximum length of the lower plate

[0063] Length of the first part of A41

[0064] Length of the second part of A42

[0065] Inner length of B1

[0066] Inner width of B2

[0067] Inner height of B3

[0068] Width of the lower plate side piece of C1

[0069] Length of the first side plate of D1

[0070] Width of the first group of pieces of D11

[0071] Width of the first turning piece of D12

[0072] Width of the first connecting piece of D13

[0073] Length of the first free edge of D2

[0074] Width of the first connecting plate of D3

[0075] Length of the second side plate of D4

[0076] Width of the second group of pieces of D41

[0077] Width of the second turning piece of D42

[0078] Width of the second connecting piece of D43

[0079] Length of the second free edge of D5

[0080] Width of the second connecting plate of D6

[0081] Width of the end plate of D7

[0082] Thickness of the substrate of T Detailed implementation manners

[0083] The following will discuss the embodiments of the present invention in more detail. However, these embodiments can be applications of various inventive concepts and can be specifically implemented within various different specific scopes. The specific embodiments are for illustrative purposes only and are not limited to the disclosed scope. In addition, for the sake of simplifying the drawings, some well-known conventional structures and elements will be shown in a simple schematic manner in the drawings, and repeated or identical elements may be represented by the same reference numerals.

[0084] <First Embodiment>

[0085] Please refer to Figure 1 and Figure 2 ,Figure 1 A schematic diagram showing the buffer packaging structure 100 according to the first embodiment of the present invention Figure 2 Showing Figure 1 A schematic diagram of the box 10 including the accommodation space 11 to which the buffer packaging structure 100 is applied. The buffer packaging structure 100 is applied in the accommodation space 11 and is inserted and filled in the gap between the target article (not shown) and the box 10 to prevent the target article from shaking and rubbing during handling and causing damage. The buffer packaging structure 100 includes a substrate 110, a lower plate 120, and a first foldable area 101.

[0086] The substrate 110 has a connecting side 111 and two opposite sides 112, wherein the connecting side 111 is respectively connected to the two opposite sides 112, and the two opposite sides 112 are opposite to each other.

[0087] The lower plate 120 is connected to the connecting side 111. Specifically, the maximum width of the lower plate 120 is A1, and the maximum width of the substrate 110 is A2, which satisfies the following condition: A1 ≤ A2. By satisfying the above condition, the sizes of the substrate 110 and the lower plate 120 have an appropriate ratio, making the buffer packaging structure 100 more convenient to use and capable of exerting the effect of buffering external forces.

[0088] The first foldable area 101 is provided on the substrate 110, wherein the substrate 110 and the lower plate 120 are relatively bent along the first foldable area 101, so that the substrate 110 and the lower plate 120 are generally perpendicular.

[0089] As Figure 1 And Figure 2 Shown, the accommodation space 11 has an internal length B1, an internal width B2, and an internal height B3. And when the maximum length of the substrate 110 is A3 and the maximum length of the lower plate 120 is A4, it satisfies the following conditions: A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3. By satisfying the above conditions, the lower plate 120 of the buffer packaging structure 100 can be smoothly inserted into the gap between the target article and the box 10 to prevent the target article from shaking in the accommodation space 11 during handling and causing damage.

[0090] Furthermore, the maximum width A1 of the lower plate 120, the maximum width A2 of the substrate 110, the maximum length A3 of the substrate 110, the maximum length A4 of the lower plate 120, the internal length B1, the internal width B2, and the internal height B3 may not simultaneously satisfy the following conditions: A1 = A2; A2 = B2; A3 = B1; and A4 = B3. Thereby, an appropriate space margin can be left between the buffer packaging structure 100 of the present invention, the accommodation space 11, and the target item, avoiding the difficulty of inserting the buffer packaging structure 100 into the gap between the target item and the box 10 during use, or the inability to effectively remove it from the box 10, thereby making the use of the buffer packaging structure 100 more efficient. However, the present invention is not limited thereto.

[0091] Furthermore, as Figure 1 shown, in the buffer packaging structure 100, the substrate 110 may be recessed with a notch 113 at its periphery, and the edges of the substrate 110 and the lower plate 120 may also be rounded or obtuse-angled to facilitate the picking and placing of the buffer packaging structure 100. However, the present invention is not limited thereto. Additionally, the materials of the substrate 110 and the lower plate 120 may include natural fibers such as cellulose and lignin, or other materials with toughness may be selected, and the present invention is not limited to a specific material.

[0092] Thereby, by relatively bending the substrate 110 and the lower plate 120 along the first foldable area 101, and the substrate 110, the lower plate 120, and the accommodation space 11 satisfy specific dimensional ratios, the buffer packaging structure 100 of the present invention can be effectively inserted and filled into the gap between the target item and the box 10, preventing the target item from shaking and rubbing during transportation. Therefore, the buffer packaging structure 100 of the present invention has excellent usability and application potential in the relevant market.

[0093] <Second Embodiment>

[0094] Please refer to Figure 3 , which shows a schematic diagram of the packaging box structure 200 according to the second embodiment of the present invention. The packaging box structure 200 includes a box 10 and at least one buffer packaging structure 100.

[0095] The box 10 has an accommodation space 11, where the accommodation space 11 has an internal length B1, an internal width B2, and an internal height B3. In the packaging box structure 200, the box 10 may be Figure 2 the box 10 as described, so for the structural details, please refer to Figure 2 the description, and will not be elaborated herein.

[0096] The buffer packaging structure 100 can be detachably disposed in the accommodation space 11, and at least one buffer packaging structure 100 is located between at least one target item 20 and the box 10.

[0097] In the packing box structure 200, the buffer packaging material structure 100 is Figure 1 the buffer packaging material structure 100 as described in Figure 1 . Therefore, for its structural details, please refer to the description in

[0098] and will not be elaborated here. The number of the buffer packaging material structures 100 is two, and the two buffer packaging material structures 100 are detachably arranged in the accommodating space 11 and respectively correspond to two sides of the target article 20. Since the substrate 110 and the lower plate 120 of the buffer packaging material structure 100 are bent relative to each other along the first foldable area 101, the substrate 110 and the lower plate 120 will be generally perpendicular, making the buffer packaging material structure 100 generally L-shaped in appearance. At this time, each buffer packaging material structure 100 will insert its lower plate 120 between the target article 20 and the box body 10, and the substrate 110 will be located between the target article 20 and the upper cover 12 of the box body 10 after the box body 10 is sealed, so as to provide a buffer effect in another direction. In this way, the buffer packaging material structure 100 can stably fix the target article 20 in the box body 10, preventing the target article 20 from shaking and rubbing during handling and causing damage. In addition, when the user wants to open the upper cover 12 of the box body 10, the buffer packaging material structure 100 covering the outside of the target article 20 can further prevent sharp materials such as scissors and blades from accidentally injuring the target article 20, so as to further improve the protection effect of the packing box structure 200 of the present invention on the target article 20.

[0099] Furthermore, when the user wants to take out the target article 20 from the box body 10, the user can adjust the substrate 110 to bend it along the first foldable area 101 in a direction opposite to the lower plate 120. At this time, the two surfaces (not marked in the figure) of the substrate 110 will not be blocked by other components and can be held and pulled by the user, and the lower plate 120 will synchronously escape from the gap between the target article 20 and the box body 10 due to the displacement of the substrate 110, so as to provide the user with an operating space to take out the target article 20 from the box body 10, making it easier to take in and out the target article 20.

[0100] <Third Embodiment>

[0101] Please refer to Figure 2 、 Figure 4 and Figure 5 , Figure 4 a schematic diagram showing the buffer packaging structure 300 of the third embodiment of the present invention, Figure 5 showing Figure 4 a schematic diagram of the folded buffer packaging structure 300. The buffer packaging structure 300 is applied in a receiving space 11 and inserted and filled in the gap between a target article (not shown in the figure) and the box body 10 to prevent the target article from shaking and rubbing during handling and causing damage. The buffer packaging structure 300 includes a substrate 310, a lower plate 320, a first foldable area 301, a first side plate 330, a first connecting plate 340, a second side plate 350, a second connecting plate 360, and at least two second foldable areas 302.

[0102] The substrate 310 has a connecting side edge 311 and two opposite sides 312, wherein the connecting side edge 311 is respectively connected to the two opposite sides 312, and the two opposite sides 312 are opposite to each other.

[0103] The lower plate 320 is connected to the connecting side edge 311. The lower plate 320 includes a lower plate body 321, at least one lower plate side piece 324, and at least one folding line 325. The lower plate body 321 is connected to the substrate 310, the lower plate side piece 324 is connected to the lower plate body 321, and the folding line 325 is disposed between the lower plate body 321 and the lower plate side piece 324, and the lower plate side piece 324 is used to bend downward along the folding line 325 toward the lower plate body 321.

[0104] As Figure 4 and Figure 5 shown, in the buffer packaging structure 300, the lower plate body 321 includes a first part 322 and a second part 323. The first part 322 is located between the second part 323 and the substrate 310. The number of the lower plate side pieces 324 is two, and the number of the folding lines 325 is two. The two lower plate side pieces 324 are respectively connected to two sides of the first part 322, and the two folding lines 325 are respectively disposed between the first part 322 and the two lower plate side pieces 324. Specifically, when the two lower plate side pieces 324 bend toward the first part 322 along the two folding lines 325, as Figure 5 shown, the two lower plate side pieces 324 will be connected to the lower plate body 321 in a way that one side is free. When the buffer packaging structure 300 is inserted into the gap between the target article and the box body 10, the two lower plate side pieces 324 can abut against the target article or the box body 10 to further buffer the external force during transportation, and provide excellent protection and fixing effects.

[0105] The first foldable area 301 is disposed on the substrate 310. The substrate 310 and the lower plate 320 are used to bend relative to each other along the first foldable area 301, so that the substrate 310 and the lower plate 320 are generally perpendicular. As Figure 5 shown, when the substrate 310 and the lower plate 320 bend relative to each other along the first foldable area 301, the buffer packaging structure 300 will generally be in an L shape in appearance. In this way, different-direction buffering and fixing effects can be provided for the target item.

[0106] The first side plate 330 is connected to the substrate 310. The first side plate 330 has a first free edge 331. The first free edge 331 is located on the side of the first side plate 330 away from the substrate 310. The maximum length of the substrate 310 is A3, and the length of the first free edge 331 is D2, which can meet the following condition: D2 ≤ A3. Thus, by making the length of the first free edge 331 of the first side plate 330 less than or equal to the maximum length of the substrate 310, the buffer packaging structure 300 can be prevented from abutting against the overlapping plates (not shown in the figure) at the corner connection in the accommodating space 11 of the box body 10. In this way, it will be beneficial to the taking and placing of the buffer packaging structure 300, and the effect of the buffer packaging structure 300 for positioning the target item can be improved.

[0107] The first connecting plate 340 connects the first side plate 330. The first side plate 330 is connected to an opposite side 312 of the substrate 310 through the first connecting plate 340.

[0108] The second side plate 350 is connected to the substrate 310. The second side plate 350 has a second free edge 351. The second free edge 351 is located on the side of the second side plate 350 away from the substrate 310. The maximum length of the substrate 310 is A3, and the length of the second free edge 351 is D5, which can meet the following condition: D5 ≤ A3. Thus, by making the length of the second free edge 351 of the second side plate 350 less than or equal to the maximum length of the substrate 310, the buffer packaging structure 300 can be prevented from abutting against the overlapping plates at the corner connection in the accommodating space 11 of the box body 10. In this way, it will be beneficial to the taking and placing of the buffer packaging structure 300, and the effect of the buffer packaging structure 300 for positioning the target item can be improved.

[0109] The second connecting plate 360 connects the second side plate 350. The second side plate 350 is connected to the other opposite side 312 of the substrate 310 through the second connecting plate 360.

[0110] At least two second foldable regions 302 are respectively disposed on the first connecting plate 340 and the second connecting plate 360, and the first side plate 330 and the second side plate 350 are respectively used to bend relatively along at least two second foldable regions 302. Specifically, in the buffer packaging structure 300, the second foldable region 302 may include at least one folding line (not shown in the figure). Taking the second foldable region 302 on the first connecting plate 340 as an example, the folding line of the second foldable region 302 may be at least located on one of the side of the first connecting plate 340 close to the substrate 310 and the side of the first connecting plate 340 close to the first side plate 330. Thus, when the first side plate 330 bends along the second foldable region 302, it can drive the first connecting plate 340 to bend towards the substrate 310 at the same time, but the present invention is not limited thereto.

[0111] The accommodating space 11 has an internal length B1, an internal width B2 and an internal height B3. When the maximum width of the lower plate 320 is A1, the maximum width of the substrate 310 is A2, the maximum length of the substrate 310 is A3, and the maximum length of the lower plate 320 is A4, the following conditions are satisfied: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3. By satisfying the above conditions, the lower plate 320 of the buffer packaging structure 300 can be smoothly inserted into the gap between the target item and the box body 10, preventing the target item from shaking in the accommodating space 11 during handling and causing damage.

[0112] When the maximum width of the lower plate 320 is A1, the width of the first part 322 is A11, the length of the first part 322 is A41, the length of the second part 323 is A42, and the width of the lower plate side piece 324 is C1, and the accommodating space 11 has an internal height B3, the following conditions can be satisfied: A11 ≤ A1; A41 ≤ B3 / 2; A42 ≤ B3; and C1 ≤ A11 / 2. Thereby, the size ratios of the first part 322 and the second part 323 of the lower plate 320 to the box body 10 are appropriate, enabling the lower plate 320 to provide an excellent buffering effect. When the size ratios of the first part 322 of the lower plate 320 and the two lower plate side pieces 324 are appropriate, it can further prevent the two lower plate side pieces 324 from abutting and stacking against each other after bending towards the first part 322 and affecting the buffering effect.

[0113] Again, Figure 4 And Figure 5As shown, when the first side plate 330 and the second side plate 350 are bent relative to each other along at least two second foldable regions 302 so that the second side plate 350 is stacked on the first side plate 330, the substrate 310, the first side plate 330, and the second side plate 350 form a first frame 303. Through the configuration of forming the first frame 303 by the substrate 310, the first side plate 330, and the second side plate 350, when an external force is applied to the buffer packaging structure 300, the first frame 303 will be deformable in a resetable manner corresponding to the external force, thereby buffering the external force and reducing the possibility of damage to the target item. Furthermore, the first frame 303 can also provide a space for placing accessories such as instructions on the buffer packaging structure 300, making the application range of the buffer packaging structure 300 of the present invention wider.

[0114] When the maximum width of the substrate 310 is A2, the length of the first side plate 330 is D1, the width of the first connecting plate 340 is D3, the length of the second side plate 350 is D4, the width of the second connecting plate 360 is D6, and the thickness of the substrate 310 is T (not shown in the figure), the following conditions can be satisfied: D1 = A2 - T; D4 = A2 + T / 2; and D6 = D3 + T. By satisfying the above conditions, the dimensional ratios of the first side plate 330, the first connecting plate 340, the second side plate 350, the second connecting plate 360, and the substrate 310 are appropriate, so that after the substrate 310, the first side plate 330, and the second side plate 350 are bent relative to each other, a first frame 303 with a stable structure can be formed, and the gap between the target item and the box body 10 can be effectively filled, thereby improving the use efficiency of the buffer packaging structure 300 of the present invention.

[0115] Please refer to Figure 4 and Figure 5 , the buffer packaging structure 300 may further include an end plate 370, and the end plate 370 is connected to the first free edge 331. As Figure 5 shown, when the first frame 303 is formed, the end plate 370 will abut against the second connecting plate 360, where the width of the end plate 370 is D7, the width of the first connecting plate 340 is D3, and the thickness of the substrate 310 is T. The following conditions can be satisfied: D7 = D3 - T. Thereby, the structural stability of the first frame 303 can be further improved.

[0116] In addition, the buffer packaging structure 300 may further include at least one plug 381 and at least one slot 382. At least one plug 381 is disposed on one of the first side plate 330 and the second side plate 350, and at least one slot 382 is disposed on one of the substrate 310, the first side plate 330, and the second side plate 350. As Figure 5As shown, when the first side plate 330 and the second side plate 350 are bent relative to each other so that the second side plate 350 is stacked on the first side plate 330 to form the first frame 303, at least one plug 381 is correspondingly inserted into at least one slot 382 to prevent the first side plate 330 and the second side plate 350 from resetting to the unfolded state, and the structural stability of the first frame 303 can be improved.

[0117] Furthermore, the second side plate 350 may further include at least one clip 383 and at least one through hole 384, and a clip 383 correspondingly covers a through hole 384. Specifically, the second side plate 350 can be formed with the clip 383 and the through hole 384 through a cutting process. The through hole 384 can have a convex arc region 385. The user can insert the fingertip into the convex arc region 385 of the through hole 384 to lift the clip 383. At the same time, after placing a card or a thin accessory between the clip 383 and the through hole 384 and then withdrawing the finger, the card or the thin accessory can be clamped on the second side plate 350, thereby improving the application breadth of the buffer packaging structure 300. Furthermore, in the buffer packaging structure 300, the number of clips 383 can be four, and the number of through holes 384 is also four, but the present invention is not limited thereto.

[0118] In addition, as Figure 4 shown, in the buffer packaging structure 300, the substrate 310 can be recessed with a notch 313 at its periphery, and the edges of the substrate 310 and the lower plate 320 can also be rounded or obtuse-angled to facilitate the taking and placing of the buffer packaging structure 300, but the present invention is not limited thereto. In addition, the materials of the substrate 310 and the lower plate 320 can include natural fibers such as cellulose and lignin, or other materials with toughness can be selected, and the present invention is not limited to a specific material.

[0119] <Fourth Embodiment>

[0120] Please refer to Figure 6 , which shows a schematic diagram of the packaging box structure 400 according to the fourth embodiment of the present invention. The packaging box structure 400 includes a box body 10 and at least one buffer packaging structure 300.

[0121] The box body 10 has an accommodation space 11. The accommodation space 11 has an internal length B1, an internal width B2, and an internal height B3. In the packaging box structure 400, the box body 10 can be Figure 2 the box body 10, so the structural details thereof please refer to Figure 2 the description, which will not be elaborated here.

[0122] The buffer packaging structure 300 can be detachably disposed in the accommodation space 11, and at least one buffer packaging structure 300 is located between at least one target item 20 and the box body 10.

[0123] In the packing box structure 400, the buffer packaging material structure 300 is the Figure 5 buffer packaging material structure 300, so for its structural details, please refer to Figure 5 for the description, which will not be elaborated here. The number of the buffer packaging material structures 300 is two, and the two buffer packaging material structures 300 can be detachably arranged in the accommodating space 11 and respectively correspond to two sides of the target article 20. As Figure 6 shown, the buffer packaging material structure 300 is inserted between the target article 20 and the box body 10 with its lower plate 320, and the two lower plate side pieces 324 face the side wall of the box body 10 (not shown in the figure). After the box body 10 is sealed, the two lower plate side pieces 324 will abut against the side wall of the box body 10, and the first frame body 303 will be located between the target article 20 and the upper cover 12 of the box body 10 to provide a buffering effect in another direction, so as to stably fix the target article 20 in the box body 10 and prevent the target article 20 from shaking and rubbing during handling and causing damage. In addition, since the buffer packaging material structure 300 is wrapped outside the target article 20, when the user wants to open the upper cover 12 of the box body 10, the first frame body 303 of the buffer packaging material structure 300 can prevent sharp materials such as scissors and blades from accidentally injuring the target article 20, so as to further improve the protection effect of the packing box structure 400 of the present invention on the target article 20.

[0124] Again, as Figure 6 shown, the buffer packaging material structure 300 is placed in the box body 10 with its second side plate 350 away from the target article 20. At this time, in addition to being used to clamp cards or thin accessories, the clip 383 and the through hole 384 of the second side plate 350 can also provide a holding space for the user to take out the buffer packaging material structure 300 from the box body 10, making it easier to take and place the target article 20.

[0125] <Fifth Embodiment>

[0126] Please refer to Figure 2 、 Figure 7 and Figure 8 , Figure 7 which shows a schematic diagram of the buffer packaging material structure 500 according to the fifth embodiment of the present invention, Figure 8 shows Figure 7 a schematic diagram of the folded buffer packaging material structure 500. The buffer packaging material structure 500 is applied in an accommodating space 11 and is inserted and filled in the gap between the target article (not shown in the figure) and the box body 10 to prevent the target article from shaking and rubbing during handling and causing damage. The buffer packaging material structure 500 includes a base plate 510, a lower plate 520, a first foldable area 501, a first side plate 530, a first connecting plate 540, a second side plate 550, a second connecting plate 560, and at least two second foldable areas 502.

[0127] The substrate 510 has a connecting side edge 511 and two opposite side edges 512, where the connecting side edge 511 is respectively connected to the two opposite side edges 512, and the two opposite side edges 512 are opposite to each other.

[0128] The lower plate 520 is connected to the connecting side edge 511. The lower plate 520 includes a lower plate body 521, at least one lower plate side piece 524, and at least one folding line 525. The lower plate body 521 is connected to the substrate 510, the lower plate side piece 524 is connected to the lower plate body 521, and the folding line 525 is disposed between the lower plate body 521 and the lower plate side piece 524. The lower plate side piece 524 is used to bend downward along the folding line 525 toward the lower plate body 521.

[0129] As Figure 7 and Figure 8 shown, in the buffer packaging structure 500, the lower plate body 521 includes a first part 522 and a second part 523. The first part 522 is located between the second part 523 and the substrate 510. The number of the lower plate side pieces 524 is two, and the number of the folding lines 525 is two. The two lower plate side pieces 524 are respectively connected to two sides of the first part 522, and the two folding lines 525 are respectively disposed between the first part 522 and the two lower plate side pieces 524. When the two lower plate side pieces 524 bend toward the first part 522 along the two folding lines 525, the two lower plate side pieces 524 will be connected to the lower plate body 521 in a way that one side is free. At this time, the two lower plate side pieces 524 can abut against the target article or the box body 10 when the buffer packaging structure 500 is inserted between the target article and the box body 10, so as to further buffer the external force during transportation and provide excellent protection and fixing effects.

[0130] The first foldable area 501 is disposed on the substrate 510. The substrate 510 and the lower plate 520 are used to bend relatively along the first foldable area 501, so that the substrate 510 and the lower plate 520 are generally perpendicular. As Figure 8 shown, when the substrate 510 and the lower plate 520 bend relatively along the first foldable area 501, the buffer packaging structure 500 will generally be in an L shape in appearance, so as to provide buffer and fixing effects in different directions for the target article.

[0131] The first side plate 530 is connected to the substrate 510. The first side plate 530 has a first free edge 531. The first free edge 531 is located on the side of the first side plate 530 away from the substrate 510. The maximum length of the substrate 510 is A3, and the length of the first free edge 531 is D2, which can meet the following condition: D2 ≤ A3.

[0132] The first connecting plate 540 connects to the first side plate 530, where the first side plate 530 is connected to an opposite side 512 of the substrate 510 through the first connecting plate 540. In the buffer packaging structure 500, the first side plate 530 includes a first set of sheets 532, a first turning piece 533, and a first connecting piece 534. The first turning piece 533 is located between the first set of sheets 532 and the first connecting piece 534. The first connecting piece 534 is connected to the first connecting plate 540, and the first free edge 531 is located on the first set of sheets 532.

[0133] The second side plate 550 is connected to the substrate 510, where the second side plate 550 has a second free edge 551. The second free edge 551 is located on a side of the second side plate 550 away from the substrate 510. The maximum length of the substrate 510 is A3, and the length of the second free edge 551 is D5, which can satisfy the following condition: D5 ≤ A3.

[0134] The second connecting plate 560 connects to the second side plate 550, where the second side plate 550 is connected to the other opposite side 512 of the substrate 510 through the second connecting plate 560. In the buffer packaging structure 500, the second side plate 550 includes a second set of sheets 552, a second turning piece 553, and a second connecting piece 554. The second turning piece 553 is located between the second set of sheets 552 and the second connecting piece 554. The second connecting piece 554 is connected to the second connecting plate 560, and the second free edge 551 is located on the second set of sheets 552.

[0135] At least two second foldable regions 502 are respectively disposed on the first connecting plate 540 and the second connecting plate 560, and the first side plate 530 and the second side plate 550 are respectively used to bend relatively along the at least two second foldable regions 502. Specifically, in the buffer packaging structure 500, the number of the second foldable regions 502 can be four. Two of the second foldable regions 502 are respectively disposed on the first connecting plate 540 and the first turning piece 533, and the other two second foldable regions 502 are respectively disposed on the second connecting plate 560 and the second turning piece 553.

[0136] As Figure 8 shown, when the first side plate 530 bends along the second foldable region 502 on the first connecting plate 540, the first set of sheets 532 bends toward the first connecting plate 540 along the second foldable region 502 on the first turning piece 533, and the first free edge 531 abuts against the first connecting plate 540, so that the first set of sheets 532, the first turning piece 533, the first connecting piece 534, and the first connecting plate 540 form a second frame body 504. In addition to providing a space for placing accessories such as instructions, when an external force is applied to the buffer packaging structure 500, the second frame body 504 will deform in a resetable manner corresponding to the external force, thereby buffering the external force and reducing the possibility of damage to the target item.

[0137] For another example Figure 8 As shown, when the second side plate 550 is bent along the second foldable area 502 on the second connecting plate 560, the second group of sheets 552 is bent towards the second connecting plate 560 along the second foldable area 502 on the second turning sheet 553, and the second free edge 551 is abutted against the second connecting plate 560, so that the second group of sheets 552, the second turning sheet 553, the second connecting sheet 554 and the second connecting plate 560 form a third frame 505. In addition to providing a space for placing accessories such as instruction manuals, when an external force is applied to the buffer packaging structure 500, the second frame 504 will be able to deform in a resetable manner corresponding to the external force simultaneously with the second frame 504, thereby buffering the external force and reducing the possibility of damage to the target item.

[0138] In addition, the second foldable area 502 may include at least one folding line (not shown in the figure). Taking the second foldable area 502 on the first connecting plate 540 as an example, the folding line of the second foldable area 502 may be at least located on one of the side of the first connecting plate 540 close to the base plate 510 and the side of the first connecting plate 540 close to the first side plate 530. Thus, when the first side plate 530 is bent along the second foldable area 502, the first connecting plate 540 is driven to bend towards the base plate 510 at the same time. However, the present invention is not limited thereto.

[0139] The accommodating space 11 has an internal length B1, an internal width B2 and an internal height B3. And when the maximum width of the lower plate 520 is A1, the maximum width of the base plate 510 is A2, the maximum length of the base plate 510 is A3, and the maximum length of the lower plate 520 is A4, the following conditions are satisfied: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3. By satisfying the above conditions, the lower plate 520 of the buffer packaging structure 500 can be smoothly inserted into the gap between the target item and the box body 10, preventing the target item from shaking in the accommodating space 11 during handling and causing damage.

[0140] When the width of the first connecting plate 540 is D3, the width of the second connecting plate 560 is D6, the width of the first group of plates 532 is D11, the width of the first turning plate 533 is D12, the width of the first connecting plate 534 is D13, the width of the second group of plates 552 is D41, the width of the second turning plate 553 is D42, the width of the second connecting plate 554 is D43, the thickness of the substrate 510 is T, and the maximum width of the substrate 510 is A2, the following conditions can be satisfied: D3=D6; D11=D41; D12=D42; D13=D43; D41=D43-T; D42=D6-T; and D43≤A2 / 2-T. Thus, the first side plate 530, the first connecting plate 540, the second side plate 550, the second connecting plate 560 and the base plate 510 have appropriate size ratios to form a second frame 504 and a third frame 505 with stable structures, thereby improving the structural stability of the buffer packaging material structure 500 of the present invention.

[0141] Furthermore, the buffer packaging material structure 500 may further include at least one plug-in 581 and at least one slot 582. The at least one plug-in 581 is disposed on one of the first side plate 530 and the second side plate 550, and the at least one slot 582 is disposed on one of the base plate 510, the first side plate 530 and the second side plate 550. Figure 7 and Figure 8 As shown, the number of the plug-ins 581 in the buffer packaging material structure 500 is two, the number of the slots 582 is two, and the two plug-ins 581 are respectively arranged on the first side plate 530 and the second side plate 550. When the second frame 504 and the third frame 505 are formed, one plug-in 581 is correspondingly inserted into one slot 582 to prevent the first side plate 530 and the second side plate 550 from being reset to an unfolded state, so as to improve the structural stability of the second frame 504 and the third frame 505.

[0142] Furthermore, if Figure 7 As shown, the substrate 510 may be provided with a notch 513 at its periphery, and the edges of the substrate 510 and the lower plate 520 may also be rounded or obtuse, so as to facilitate the placement and removal of the buffer packaging structure 500, but the present invention is not limited thereto. In addition, the material of the substrate 510 and the lower plate 520 may include natural fibers such as cellulose and lignin, or other tough materials may be selected, and the present invention is not limited to a specific material.

[0143] In addition, although not shown in the figures, the number of the second foldable regions can also be adjusted according to requirements. For example, when the second side plate does not include the configuration of the second set of sheets, the second turning sheet, and the second connecting sheet, the number of the second foldable regions can be three, and the three second foldable regions are respectively arranged on the first connecting plate, the second connecting plate, and the first turning sheet. When the buffer packaging structure is folded, it will present a configuration with a second frame body but without a third frame body, and the second side plate can be covered on the second frame body, but the present invention is not limited thereto.

[0144] <Sixth Embodiment>

[0145] Please refer to Figure 9 , which shows a schematic diagram of a packaging box structure 600 according to a sixth embodiment of the present invention. The packaging box structure 600 includes a box body 10 and at least one buffer packaging structure 500.

[0146] The box body 10 has an accommodating space 11, and the accommodating space 11 has an internal length B1, an internal width B2, and an internal height B3. In the packaging box structure 600, the box body 10 can be Figure 2 the box body 10, so for the structural details, please refer to Figure 2 the description, which will not be elaborated herein.

[0147] The buffer packaging structure 500 is detachably arranged in the accommodating space 11, and at least one buffer packaging structure 500 is located between at least one target item 20 and the box body 10.

[0148] In the packaging box structure 600, the buffer packaging structure 500 is Figure 7 the buffer packaging structure 500, so for the structural details, please refer to Figure 7 the description, which will not be elaborated herein. The number of the buffer packaging structures 500 is two, and the two buffer packaging structures 500 are detachably arranged in the accommodating space 11 and respectively correspond to two sides of the target item 20. As Figure 9As shown, the buffer packaging structure 500 has its lower plate 520 inserted between the target article 20 and the box body 10. The two lower plate side pieces 524 face the side wall of the box body 10. After the box body 10 is sealed, the two lower plate side pieces 524 will abut against the side wall of the box body 10. The second frame body 504 and the third frame body 505 will be located between the target article 20 and the upper cover 12 of the box body 10 to provide a buffer effect in another direction, thereby stably fixing the target article 20 in the box body 10 and preventing the target article 20 from shaking and rubbing during handling and causing damage. In addition, since the buffer packaging structure 500 is wrapped outside the target article 20, when the user wants to open the upper cover 12 of the box body 10, the second frame body 504 and the third frame body 505 of the buffer packaging structure 500 can prevent sharp materials such as scissors and blades from accidentally injuring the target article 20, so as to further improve the protection effect of the packaging box structure 600 of the present invention on the target article 20.

[0149] In summary, the buffer packaging structure of the present invention can effectively insert and fill the gap between the target article and the box body by the relative bending of the base plate and the lower plate along the first foldable area, preventing the target article from shaking and rubbing during handling. When the user wants to take out the target article from the box body, the buffer packaging structure can be taken out by pulling the base plate, making it easier to take in and out the target article. Furthermore, by the fact that the base plate, the lower plate of the buffer packaging structure and the accommodation space of the box body satisfy specific size ratios, the buffer packaging structure can effectively insert into the gap between the target article and the box body to fix the position of the target article in the box body and prevent the target article from shaking and rubbing during handling. Therefore, the packaging box structure of the present invention has excellent usability and application potential in the relevant market.

[0150] Although the present invention has been disclosed above in the form of embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the appended claims.

Claims

1. A buffer packaging material structure, which is applied to an accommodation space. The buffer packaging material structure comprises: a substrate having a connecting side edge and two opposite sides, wherein the connecting side edge is respectively connected to the two opposite sides, and the two opposite sides are opposite to each other; a lower plate connected to the connecting side edge; and a first foldable area provided on the substrate, wherein the substrate and the lower plate are relatively bent along the first foldable area, so that the substrate and the lower plate are generally perpendicular; wherein, the maximum width of the lower plate is A1, the maximum width of the substrate is A2, the maximum length of the substrate is A3, the maximum length of the lower plate is A4, the accommodation space has an internal length, an internal width and an internal height, the internal length is B1, the internal width is B2, and the internal height is B3, which satisfy the following conditions: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3.

2. The buffer packaging material structure according to claim 1, wherein the lower plate comprises: a lower plate body connected to the substrate; at least one lower plate side piece connected to the lower plate body; and at least one folding line provided between the lower plate body and the at least one lower plate side piece, and the at least one lower plate side piece is used for bending towards the lower plate body along the at least one folding line.

3. The buffer packaging material structure according to claim 2, wherein: the lower plate body includes a first part and a second part, and the first part is located between the second part and the substrate; the number of the at least one lower plate side piece is two, the number of the at least one folding line is two, the two lower plate side pieces are respectively connected to two sides of the first part, and the two folding lines are respectively provided between the first part and the two lower plate side pieces; and the width of the first part is A11, the length of the first part is A41, the length of the second part is A42, and the width of one lower plate side piece is C1, which satisfy the following conditions: A11 ≤ A1; A41 ≤ B3 / 2; A42 ≤ B3; and C1 ≤ A11 / 2.

4. The buffer packaging material structure according to claim 1, the buffer packaging material structure further comprises: a first side plate connected to the substrate, wherein the first side plate has a first free edge located on the side of the first side plate away from the substrate; a first connecting plate connecting the first side plate, wherein the first side plate is connected to one of the opposite sides of the substrate through the first connecting plate; a second side plate connected to the substrate, wherein the second side plate has a second free edge located on the side of the second side plate away from the substrate; a second connecting plate connecting the second side plate, wherein the second side plate is connected to the other of the opposite sides of the substrate through the second connecting plate; and at least two second foldable areas respectively provided on the first connecting plate and the second connecting plate, and the first side plate and the second side plate are respectively used for relatively bending along the at least two second foldable areas; Wherein, the length of the first free edge is D2, and the length of the second free edge is D5, which satisfy the following conditions: D2 ≤ A3; and D5 ≤ A3.

5. The buffer packaging material structure according to claim 4, wherein when the first side plate and the second side plate are bent relative to each other so that the second side plate is stacked on the first side plate, the substrate, the first side plate, and the second side plate form a first frame body, wherein the length of the first side plate is D1, the width of the first connecting plate is D3, the length of the second side plate is D4, the width of the second connecting plate is D6, and the thickness of the substrate is T, which satisfy the following conditions: D1 = A2 - T; D4 = A2 + T / 2; and D6 = D3 + T.

6. The buffer packaging material structure according to claim 5, the buffer packaging material structure further comprises: An end plate, which is connected to the first free edge, wherein the width of the end plate is D7, which satisfies the following condition: D7 = D3 - T.

7. The buffer packaging material structure according to claim 4, wherein: The first side plate includes a first group of sheets, a first turning piece, and a first connecting piece. The first turning piece is located between the first group of sheets and the first connecting piece. The first connecting piece is connected to the first connecting plate, and the first free edge is located on the first group of sheets; The number of the at least two second foldable regions is at least three, and the at least three second foldable regions are respectively arranged on the first connecting plate, the second connecting plate, and the first turning piece; and When the first side plate is bent along the second foldable region on the first connecting plate, the first group of sheets is bent toward the first connecting plate along the second foldable region on the first turning piece, and the first free edge abuts against the first connecting plate, so that the first group of sheets, the first turning piece, the first connecting piece, and the first connecting plate form a second frame body.

8. The buffer packaging material structure according to claim 7, wherein: The second side plate includes a second group of sheets, a second turning piece, and a second connecting piece. The second turning piece is located between the second group of sheets and the second connecting piece. The second connecting piece is connected to the second connecting plate, and the second free edge is located on the second group of sheets; The number of the at least two second foldable regions is four, and the four second foldable regions are respectively arranged on the first connecting plate, the second connecting plate, the first turning piece, and the second turning piece; and When the second side plate is bent along the second foldable region on the second connecting plate, the second group of sheets is bent toward the second connecting plate along the second foldable region on the second turning piece, and the second free edge abuts against the second connecting plate, so that the second group of sheets, the second turning piece, the second connecting piece, and the second connecting plate form a third frame body.

9. The buffer packaging material structure according to claim 8, wherein the width of the first group of sheets is D11, the width of the first turning piece is D12, the width of the first connecting piece is D13, the width of the second group of sheets is D41, the width of the second turning piece is D42, and the width of the second connecting piece is D43, which satisfy the following conditions: D3 = D6; D11 = D41; D12 = D42; D13 = D43; D41 = D43 - T; D42 = D6 - T; and D43 ≤ A2 / 2 - T.

10. The buffer packaging structure according to claim 4, the buffer packaging structure further comprises: at least one plug-in, the at least one plug-in is arranged on one of the first side plate and the second side plate; and at least one slot, the at least one slot is arranged on one of the substrate, the first side plate and the second side plate, and the at least one plug-in is correspondingly inserted into the at least one slot.

11. A packing box structure, the packing box structure comprises: a box body, the box body has an accommodating space, wherein the accommodating space has an internal length, an internal width and an internal height; and at least one buffer packaging structure, the at least one buffer packaging structure is detachably arranged in the accommodating space, and the at least one buffer packaging structure is located between at least one target article and the box body, wherein the at least one buffer packaging structure comprises: a substrate, the substrate has a connecting side edge and two opposite sides, wherein the connecting side edge is respectively connected with the two opposite sides, and the two opposite sides are opposite to each other; a lower plate, the lower plate is connected to the connecting side edge; and a first foldable area, the first foldable area is arranged on the substrate, wherein the substrate and the lower plate are used for relatively bending along the first foldable area, so that the substrate and the lower plate are substantially perpendicular; wherein, the maximum width of the lower plate is A1, the maximum width of the substrate is A2, the maximum length of the substrate is A3, the maximum length of the lower plate is A4, the internal length of the accommodating space is B1, the internal width is B2, and the internal height is B3, which satisfy the following conditions: A1 ≤ A2; A2 ≤ B2; A3 ≤ B1; and A4 ≤ B3.

12. The packing box structure according to claim 11, wherein the lower plate comprises: a lower plate body, the lower plate body is connected to the substrate; at least one lower plate side piece, the at least one lower plate side piece is connected to the lower plate body; and at least one folding line, the at least one folding line is arranged between the lower plate body and the at least one lower plate side piece, and the at least one lower plate side piece is used for bending towards the lower plate body along the at least one folding line.

13. The packing box structure according to claim 12, wherein: the lower plate body comprises a first part and a second part, the first part is located between the second part and the substrate; the number of the at least one lower plate side piece is two, the number of the at least one folding line is two, the two lower plate side pieces are respectively connected to two sides of the first part, and the two folding lines are respectively arranged between the first part and the two lower plate side pieces; and the width of the first part is A11, the length of the first part is A41, the length of the second part is A42, and the width of one lower plate side piece is C1, which satisfy the following conditions: A11 ≤ A1; A41 ≤ B3 / 2; A42 ≤ B3; and C1 ≤ A11 / 2.

14. The packing box structure according to claim 11, the packing box structure further comprises: a first side plate, the first side plate is connected to the substrate, wherein the first side plate has a first free edge, and the first free edge is located on the side of the first side plate away from the substrate; A first connecting plate that connects the first side plate, wherein the first side plate is connected to a pair of sides of the substrate through the first connecting plate; A second side plate that is connected to the substrate, wherein the second side plate has a second free edge located on a side of the second side plate away from the substrate; A second connecting plate that connects the second side plate, wherein the second side plate is connected to the other pair of sides of the substrate through the second connecting plate; and At least two second foldable regions respectively provided on the first connecting plate and the second connecting plate, and the first side plate and the second side plate are respectively used to bend relatively along the at least two second foldable regions; Wherein, the length of the first free edge is D2, and the length of the second free edge is D5, which satisfy the following conditions: D2 ≤ A3; and D5 ≤ A3.

15. The packaging box structure according to claim 14, wherein when the first side plate and the second side plate are bent relatively so that the second side plate is stacked on the first side plate, the substrate, the first side plate and the second side plate form a first frame body, wherein the length of the first side plate is D1, the width of the first connecting plate is D3, the length of the second side plate is D4, the width of the second connecting plate is D6, and the thickness of the substrate is T, which satisfy the following conditions: D1 = A2 - T; D4 = A2 + T / 2; and D6 = D3 + T.

16. The packaging box structure according to claim 15, the packaging box structure further comprises: An end plate connected to the first free edge, wherein the width of the end plate is D7, which satisfies the following condition: D7 = D3 - T.

17. The packaging box structure according to claim 15, wherein: The first side plate includes a first group of sheets, a first turning sheet and a first connecting sheet, the first turning sheet is located between the first group of sheets and the first connecting sheet, the first connecting sheet is connected to the first connecting plate, and the first free edge is located on the first group of sheets; The number of the at least two second foldable regions is at least three, and the at least three second foldable regions are respectively provided on the first connecting plate, the second connecting plate and the first turning sheet; and When the first side plate is bent along the second foldable region on the first connecting plate, the first group of sheets is bent towards the first connecting plate along the second foldable region on the first turning sheet, and the first free edge abuts against the first connecting plate, so that the first group of sheets, the first turning sheet, the first connecting sheet and the first connecting plate form a second frame body.

18. The packaging box structure according to claim 17, wherein: The second side plate includes a second group of sheets, a second turning sheet and a second connecting sheet, the second turning sheet is located between the second group of sheets and the second connecting sheet, the second connecting sheet is connected to the second connecting plate, and the second free edge is located on the second group of sheets; The number of the at least two second foldable regions is four, and the four second foldable regions are respectively provided on the first connecting plate, the second connecting plate, the first turning sheet and the second turning sheet; and When the second side plate is bent along the second foldable area on the second connecting plate, the second set of sheets is bent toward the second connecting plate along the second foldable area on the second turning piece, and the second free edge abuts against the second connecting plate, so that the second set of sheets, the second turning piece, the second connecting piece and the second connecting plate form a third frame body.

19. The packaging box structure according to claim 18, wherein the width of the first set of sheets is D11, the width of the first turning piece is D12, the width of the first connecting piece is D13, the width of the second set of sheets is D41, the width of the second turning piece is D42, and the width of the second connecting piece is D43, which satisfy the following conditions: D3 = D6; D11 = D41; D12 = D42; D13 = D43; D41 = D43 - T; D42 = D6 - T; and D43 ≤ A2 / 2 - T.

20. The packaging box structure according to claim 14, the packaging box structure further comprises: at least one plug, which is arranged on one of the first side plate and the second side plate; and at least one slot, which is arranged on one of the base plate, the first side plate and the second side plate, and the at least one plug is correspondingly inserted into the at least one slot.

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