Packaging box structure

Abstract

The utility model discloses a packaging box structure which comprises a bottom part and a peripheral side part. The bottom comprises a first corrugated structure and a second corrugated structure. The first corrugated structure comprises a plurality of first corrugated cores, and the first corrugated cores extend in the first direction and are arranged side by side in the second direction perpendicular to the first direction. The second corrugated structure comprises a plurality of second corrugated cores, an included angle is formed between the extending length direction of each second corrugated core and the first direction, and the second corrugated structure is overlapped with the first corrugated structure in a third direction perpendicular to the first direction and the second direction. The peripheral side part is arranged on the periphery of the second corrugated structure and comprises a plurality of third corrugated structures, and the third corrugated structures are overlapped with one another in the second direction.

Description

Technical Field

[0001] The utility model relates to a packaging box structure, in particular to a packaging box structure with buffering performance. Background Art

[0002] The packaging and transportation of products are extremely important links in the product chain. For fragile products, more caution is required to avoid product damage. For large electronic products, due to their high cost, the packaging structure often focuses on protection. As a result, the operation convenience and cost issues cannot be taken into account, so there is a need for improvement. Summary of the Utility Model

[0003] In view of this, the utility model provides a packaging box structure, which includes a bottom and a peripheral side. The bottom includes a first corrugated structure and a second corrugated structure. The first corrugated structure includes a first surface layer, a plurality of first corrugated layers, and a first bottom layer. Each first corrugated layer is disposed between the first surface layer and the first bottom layer. Each first corrugated layer respectively includes a plurality of first corrugated cores, and each first corrugated core extends along a first direction and is arranged side by side in a second direction perpendicular to the first direction. The second corrugated structure includes a second surface layer, a plurality of second corrugated layers, and a second bottom layer. Each second corrugated layer is disposed between the second surface layer and the second bottom layer. Each second corrugated layer respectively includes a plurality of second corrugated cores, and the extending direction of each second corrugated core forms an angle with the first direction. The second corrugated structure overlaps the first corrugated structure in a third direction perpendicular to the first direction and the second direction, and the second bottom layer of the second corrugated structure is combined with the first surface layer of the first corrugated structure. The peripheral side is disposed at the periphery of the second corrugated structure. The peripheral side includes a plurality of third corrugated structures. Each third corrugated structure respectively includes a third surface layer, a plurality of third corrugated layers, and a third bottom layer. Each third corrugated layer respectively includes a plurality of third corrugated cores. Each third corrugated structure overlaps with each other in the first direction or the second direction, and the third corrugated structure combines the third bottom layer of the adjacent third corrugated structure with the third surface layer.

[0004] In some embodiments, each of the foregoing second corrugated cores extends along the second direction.

[0005] In some embodiments, the foregoing first corrugated structure further includes a first intermediate layer. The number of the first corrugated layers is two, and the first intermediate layer is disposed between the two first corrugated layers.

[0006] In some embodiments, each of the foregoing first corrugated cores has a first peak portion and a first valley portion, and there is a first height in the third direction between the first peak portion and the first valley portion. Each of the second corrugated cores has a second peak portion and a second valley portion, and there is a second height in the third direction between the second peak portion and the second valley portion. Each of the third corrugated cores has a third peak portion and a third valley portion, and there is a third height in the first direction or the second direction between the third peak portion and the third valley portion of the third corrugated core, and the third height is less than the first height or the second height.

[0007] In some embodiments, the foregoing first height is equal to the second height, and the third height is less than the first height and the second height.

[0008] In some embodiments, the foregoing first height and second height are 4.5 to 5.0 millimeters, and the third height is 2.5 to 3.0 millimeters or 3.5 to 4.0 millimeters.

[0009] In some embodiments, the number of the first corrugated cores of the foregoing first corrugated layer distributed in the first direction is less than the number of the third corrugated cores of the third corrugated layer distributed in the first direction.

[0010] In some embodiments, the foregoing second corrugated structure further includes a second intermediate layer, the number of the second corrugated layers is two, and the second intermediate layer is disposed between the two second corrugated layers.

[0011] In some embodiments, the foregoing third corrugated structure further includes a third intermediate layer, the number of the third corrugated layers is two, and the third intermediate layer is disposed between the two third corrugated layers.

[0012] In some embodiments, the foregoing first corrugated structure includes a support portion and four extension portions, the peripheral portion is joined at the junction of the support portion and each extension portion, and each extension portion wraps the peripheral portion.

[0013] In some embodiments, the packaging box structure further includes a first adhesive layer, which is bonded between the first corrugated structure and the second corrugated structure.

[0014] In some embodiments, the packaging box structure further includes a plurality of second adhesive layers bonded between adjacent third corrugated structures.

[0015] The priority of the present utility model lies in that the bottom and the peripheral side of the packaging box structure are constituted by a corrugated structure. The hollow structural characteristics of the corrugated structure provide an elastic support effect for the overall packaging box structure, and achieve the purpose of light weight under the condition of the same thickness. Moreover, the corrugated structure at the bottom of the packaging box structure is arranged in a staggered manner, thereby enabling the bottom of the packaging box structure to have supporting capabilities in different directions, while the corrugated structure on the peripheral side can prevent the peripheral side of the packaging box structure from deforming due to pressure, ensuring the strength and stability of the packaging box structure, and avoiding the contents from being compressed. Based on this, the packaging box structure can carry high-weight and fragile contents, and can ensure the stability and safety of carrying the contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective exploded view of an embodiment of the packaging box structure of the present utility model;

[0017] Figure 2 is a perspective view of an embodiment of the packaging box structure of the present utility model;

[0018] Figure 3 is along Figure 2 a perspective cross-sectional view drawn along the cutting plane line 3-3 in

[0019] Figure 4 is Figure 3 a plan view of

[0020] Figure 5 is along Figure 2 a plan cross-sectional view drawn along the cutting plane line 5-5 in

[0021] Figure 6 is Figure 4 a partial enlarged view of the circled area 6 in

[0022] Figure 7 is Figure 5 a partial enlarged view of the circled area 7 in

[0023] Figure 8 is Figure 1 a partial enlarged view of the circled area 8 in

[0024] Figure 9 is a perspective exploded view of another embodiment of the packaging box structure of the present utility model;

[0025] Figure 10 is a partial structural cross-sectional view of another embodiment of the bottom of the packaging box structure of the present utility model;

[0026] Figure 11 is a partial structural cross-sectional view of another embodiment of the peripheral side of the packaging box structure of the present utility model.

[0027] Reference Numerals:

[0028] 10: Bottom

[0029] 11: First Corrugated Structure

[0030] 11A: Support Portion

[0031] 11B: Extension Portion

[0032] 11C: First Joint Portion

[0033] 11D: Second Joint Portion

[0034] 111: First Surface Layer

[0035] 112: First Corrugated Layer

[0036] 1121: First Corrugated Core

[0037] P1: First Peak Portion

[0038] T1: First Valley Portion

[0039] 113: First Bottom Layer

[0040] 114: First Intermediate Layer

[0041] 115: First Concave Portion

[0042] 116: Second Concave Portion

[0043] 12: Second Corrugated Structure

[0044] 121: Second Surface Layer

[0045] 122: Second Corrugated Layer

[0046] 1221: Second Corrugated Core

[0047] P2: Second Peak Portion

[0048] T2: Second Valley Portion

[0049] 123: Second Bottom Layer

[0050] 124: Second Intermediate Layer

[0051] 20: Peripheral Side Portion

[0052] 21: Third Corrugated Structure

[0053] 211: Third Surface Layer

[0054] 212: Third Corrugated Layer

[0055] 2121: Third Corrugated Core

[0056] P3: Third Peak Portion

[0057] T3: The third valley part

[0058] 213: The third bottom layer

[0059] 214: The third intermediate layer

[0060] 215: Protrusion

[0061] 31: The first adhesive layer

[0062] 32: The second adhesive layer

[0063] 33: The third adhesive layer

[0064] 40: Buffer

[0065] 40A: The first buffer

[0066] 40B: The second buffer

[0067] 40C: The third buffer

[0068] 40D: The fourth buffer

[0069] 40E: The fifth buffer

[0070] D1: The first direction

[0071] D2: The second direction

[0072] D3: The third direction

[0073] H1: The first height

[0074] H2: The second height

[0075] H3: The third height

[0076] A: Contained object Detailed implementation manners

[0077] Before the present utility model is described in detail in each embodiment, please note that in the following description, the drawings of the present utility model are only for illustrative purposes, not necessarily drawn to scale, and not all details may be presented in the drawings.

[0078] The directionality or its approximate terms of the present utility model, such as "front", "rear", "left", "right", "up (top)", "down (bottom)", "inside", "outside", "side", etc., mainly refer to the direction of the attached drawings. Each directionality or its approximate terms are only used to assist in explaining and understanding each embodiment of the present utility model, and are not used to limit the present utility model.

[0079] Refer to Figure 1 and Figure 2 , Figure 1A three-dimensional exploded view of an embodiment of the packaging box structure of the present utility model; Figure 2 A three-dimensional view of an embodiment of the packaging box structure of the present utility model. The packaging box structure of the present utility model is suitable for accommodating a crush-sensitive and easily breakable item A, such as, but not limited to, a display panel, a display, glass, or an electronic device. The packaging box structure of the present utility model includes a bottom 10 and a peripheral side portion 20. The area surrounded by the bottom 10 and the peripheral side portion 20 is used to accommodate the item A.

[0080] Refer to Figure 1 and cooperate with Figures 3 to 8 , Figure 3 is a three-dimensional cross-sectional view drawn along the 3-3 cutting plane line in Figure 2 ; Figure 4 is a plan view of Figure 3 ; Figure 5 is a plan cross-sectional view drawn along the 5-5 cutting plane line in Figure 2 ;

[0081] Figure 6 is a partial enlarged view of the circled area 6 in Figure 4 ; Figure 7 is a partial enlarged view of the circled area 7 in Figure 5 ;

[0082] Figure 8 is a partial enlarged view of the circled area 8 in Figure 4 . In some embodiments, the bottom 10 includes a first corrugated structure 11 and a second corrugated structure 12. The first corrugated structure 11 includes a first surface layer 111, a plurality of first corrugated layers 112, and a first bottom layer 113. Each first corrugated layer 112 is disposed between the first surface layer 111 and the first bottom layer 113. Each first corrugated layer 112 respectively includes a plurality of first corrugated cores 1121. Each first corrugated core 1121 extends along the first direction D1 and is arranged in parallel in the second direction D2 perpendicular to the first direction D1.

[0083] Refer to Figure 1 and cooperate with Figures 3 to 8 , the second corrugated structure 12 includes a second surface layer 121, a plurality of second corrugated layers 122, and a second bottom layer 123. Each second corrugated layer 122 is disposed between the second surface layer 121 and the second bottom layer 123. Each second corrugated layer 122 respectively includes a plurality of second corrugated cores 1221. The extending direction of each second corrugated core 1221 has an angle with the first direction D1. The second corrugated structure 12 overlaps the first corrugated structure 11 in the third direction D3 perpendicular to the first direction D1 and the second direction D2, and the second bottom layer 123 of the second corrugated structure 12 is combined with the first surface layer 111 of the first corrugated structure 11.

[0084] Refer to Figure 1 and cooperate with Figures 3 to 8, the peripheral side portion 20 is disposed on the first corrugated structure 11 of the bottom portion 10 and is located at the periphery of the second corrugated structure 12. The peripheral side portion 20 includes a plurality of third corrugated structures 21. Each third corrugated structure 21 respectively includes a third surface layer 211, a plurality of third corrugated layers 212 and a third bottom layer 213. Each third corrugated layer 212 respectively includes a plurality of third corrugated cores 2121. Each third corrugated structure 21 overlaps with each other along the first direction D1 or the second direction D2 (each third corrugated structure 21 that overlaps along the first direction D1 can form opposite sides of the peripheral side portion 20 in the first direction D1, and each third corrugated structure 21 that overlaps along the second direction D2 can form opposite sides of the peripheral side portion 20 in the second direction D2), and the third corrugated structure 21 combines the third bottom layer 213 of the adjacent third corrugated structure 21 with the third surface layer 211.

[0085] Thereby, in the present utility model, the bottom portion 10 and the peripheral side portion 20 of the packaging box structure are constituted by the corrugated structure. The hollow structural characteristics of the corrugated structure provide an elastic support effect for the overall packaging box structure, and achieve the purpose of light weight under the condition of the same thickness. Moreover, the corrugated structures of the bottom portion 10 of the packaging box structure are arranged in a staggered manner, thereby enabling the bottom portion 10 of the packaging box structure to have supporting capabilities in different directions, while the corrugated structures of the peripheral side portion 20 can prevent the peripheral side portion 20 of the packaging box structure from being deformed due to pressure, ensuring the strength and stability of the packaging box structure, and avoiding the contained object A from being oppressed. Based on this, the packaging box structure can carry the high-weight and fragile contained object A, and can ensure the stability and safety of carrying the contained object A.

[0086] The corrugated structure refers to a structure having a wavy corrugated core, and a hollow and buffer portion is formed by the wavy corrugated core, thereby providing a buffer function. The corrugated core has a peak portion and a valley portion. The valley portion is formed by extending from the peak portion in the direction of a lower height. Therefore, the valley portion is formed at a lower position, and the peak portion is formed at a higher position.

[0087] Refer to Figure 1 And cooperate with Figures 3 to 8 , in some embodiments, the first corrugated structure 11, the second corrugated structure 12 and the third corrugated structure 21 can be but are not limited to various types of corrugated structures or combinations of multiple different corrugated structure forms. Specifically, various types of corrugated structures are defined by different combination configurations of the corrugated core, the surface layer and the bottom layer. The surface layer and the bottom layer are in a planar form for combining with the peak portion or the valley portion of the corrugated core to support the corrugated core. The combination of corrugated structures with different configurations or shapes can provide packaging box structures with different strengths and characteristics, and has the advantages of being light and having good buffering performance compared with metal plates, wooden boards or hard fiber boards.

[0088] In some embodiments, the shape of the corrugated core of the corrugated structure can be, but is not limited to, V-shaped, U-shaped, or UV-shaped. Herein, the arc radius of the peak and valley of the V-shaped corrugated core is smaller than that of the U-shaped corrugated core, and the arc radius of the peak and valley of the UV-shaped corrugated core is between that of the V-shaped and U-shaped corrugated cores.

[0089] In some embodiments, the specifications of the corrugated core of the corrugated structure can be, but are not limited to, one of A-flute, B-flute, C-flute, E-flute or a combination of the foregoing specifications. The flute height (the shortest distance between the peak and valley) of the corrugated core of A-flute specification is 4.5 - 5 millimeters (mm), and the number of flutes (the number of corrugated cores within a unit length (300 millimeters)) is 34 ± 3; the flute height (the shortest distance between the peak and valley) of the corrugated core of B-flute specification is 2.5 - 3 millimeters (mm), and the number of flutes (the number of corrugated cores within a unit length (300 millimeters)) is 49 ± 4; the flute height (the shortest distance between the peak and valley) of the corrugated core of C-flute specification is 3.5 - 4 millimeters (mm), and the number of flutes (the number of corrugated cores within a unit length (300 millimeters)) is 37 ± 3; the flute height (the shortest distance between the peak and valley) of the corrugated core of E-flute specification is 1.1 - 2 millimeters (mm), and the number of flutes (the number of corrugated cores within a unit length (300 millimeters)) is 76 ± 6.

[0090] The forms of the corrugated structure can be single-sided corrugated, triple-wall corrugated, or five-layer corrugated respectively. The single-sided corrugated includes a single corrugated core combined with one of the face layer or the bottom layer. The triple-wall corrugated includes a single corrugated core with the face layer and the bottom layer combined on both sides respectively. The five-layer corrugated includes two corrugated cores, an intermediate layer, a face layer, and a bottom layer, where one corrugated core has the face layer and one side of the intermediate layer combined on both sides respectively, and the other corrugated core has the other side of the intermediate layer and the bottom layer combined on both sides.

[0091] In some embodiments, the first corrugated structure 11, the second corrugated structure 12, and the third corrugated structure 21 can be, but are not limited to, made of paper or plastic materials. In some embodiments where the first corrugated structure 11, the second corrugated structure 12, and the third corrugated structure 21 are respectively made of paper, the formed packaging box structure can have the effects of low material cost, low mold cost, light weight, enabling automated operation, and the materials being recyclable.

[0092] Refer to Figure 1 And in cooperation with Figures 3 to 8 , in some embodiments, the number of the first corrugated layers 112 of the first corrugated structure 11 is two, and the number of the second corrugated layers 122 of the second corrugated structure 12 is two, thereby meeting the required thickness and buffering capacity of the bottom 10.

[0093] Refer to Figure 1 And in cooperation with Figures 3 to 8, in some embodiments where the number of the first corrugated layers 112 is two, the first corrugated structure 11 further includes a first intermediate layer 114. In these embodiments, the two sides of the first intermediate layer 114 are respectively bonded to the first corrugated layers 112, and the other sides of the first corrugated layers 112 bonded to the first intermediate layer 114 are respectively bonded to the first surface layer 111 and the first bottom layer 113. In this state, the first intermediate layer 114 is parallel between the first surface layer 111 and the first bottom layer 113. Hereby, the first corrugated structure 11 becomes a five-layer corrugated structure type, but the present case is not limited thereto.

[0094] In some embodiments, the first corrugated structure 11 may also not include the first intermediate layer 114. In these embodiments, the number of one of the first surface layer 111 and the first bottom layer 113 of the first corrugated structure 11 is two (hereinafter, the case where the number of the first bottom layer 113 is two is described), and the number of the first corrugated layers 112 is two. Hereby, the two sides of one of the first bottom layers 113 are respectively bonded to one side of each of the first corrugated layers 112, and the other sides of the first corrugated layers 112 are respectively bonded to the first surface layer 111 and the other first bottom layer 113. Hereby, the first corrugated structure 11 is a corrugated structure with a five-layer structure type composed of single-sided corrugation and three-layer corrugation.

[0095] Refer to Figure 1 And cooperate with Figures 3 to 8 , in some embodiments where the number of the second corrugated layers 122 is two, the second corrugated structure 12 further includes a second intermediate layer 124. In these embodiments, the two sides of the second intermediate layer 124 are respectively bonded to the second corrugated layers 122, and the other sides of the second corrugated layers 122 bonded to the second intermediate layer 124 are respectively bonded to the second surface layer 121 and the second bottom layer 123. Hereby, the second corrugated structure 12 becomes a five-layer corrugated structure type, but the present case is not limited thereto.

[0096] In some embodiments, the second corrugated structure 12 may also not include the second intermediate layer 124. In these embodiments, the number of one of the second surface layer 121 and the second bottom layer 123 of the second corrugated structure 12 is two (hereinafter, the case where the number of the second bottom layer 123 is two is described), and the number of the second corrugated layers 122 is two. Hereby, the two sides of one of the second bottom layers 123 are respectively bonded to one side of each of the second corrugated layers 122, and the other sides of the second corrugated layers 122 are respectively bonded to the second surface layer 121 and the other second bottom layer 123. Hereby, the second corrugated structure 12 is a corrugated structure with a five-layer structure type composed of single-sided corrugation and three-layer corrugation.

[0097] Refer to Figure 1 And cooperate with Figures 3 to 8 , in some embodiments, the first corrugated structure 11 includes a plurality of first corrugated cores 1121 (such as Figure 6The dotted selection range is a first corrugated core 1121. Each first corrugated core 1121 has a first peak portion P1 and a first valley portion T1. The first peak portion P1 is at the peak of the waveform of the first corrugated core 1121, and the first valley portion T1 is at the trough of the waveform of the first corrugated core 1121. The first valley portion T1 extends from the first peak portion P1 in the direction of lower height, so the first valley portion T1 is formed at a lower position and the first peak portion P1 is formed at a higher position. Thus, the first peak portion P1 and the first valley portion T1 of each first corrugated core 1121 are located at different positions in the third direction D3. That is to say, a hollow state is formed between the first peak portion P1 and the first valley portion T1 of each first corrugated core 1121 in the third direction D3. In this way, when the first surface layer 111 and / or the first bottom layer 113 are pressed by an external force, the first surface layer 111 and / or the first bottom layer 113 squeeze the first corrugated core 1121, and the first corrugated core 1121 undergoes elastic deformation, thereby enabling the first corrugated structure 11 to provide support and buffering in the third direction D3.

[0098] Refer to Figure 1 And cooperate with Figures 3 to 8 , in an embodiment where the first corrugated core 1121 extends along the first direction D1 and the first corrugated structure 11 and the second corrugated structure 12 overlap in the third direction D3, there is a first height H1 between the first peak portion P1 and the first valley portion T1 in the third direction D3. In some embodiments, the first height H1 is 4.5 to 5 millimeters (i.e., the first corrugated core 1121 adopts the A corrugation specification). Thus, each first corrugated core 1121 of the first corrugated structure 11 adopts a specification with a relatively high corrugation height, and can provide a greater buffering force, and is thus suitable for carrying the receptacle A with vulnerable characteristics.

[0099] Refer to Figure 1 And cooperate with Figures 3 to 8 , in some embodiments, the second corrugated structure 12 includes a plurality of second corrugated cores 1221 (such as Figure 7The virtual selection range is a second corrugated core 1221). Each second corrugated core 1221 has a second peak portion P2 and a second valley portion T2. The second peak portion P2 is at the peak of the waveform of the second corrugated core 1221, and the second valley portion T2 is at the trough of the waveform of the second corrugated core 1221. The second valley portion T2 is formed by extending from the second peak portion P2 in the direction of lower height. Therefore, the second valley portion T2 is formed at a lower position, and the second peak portion P2 is formed at a higher position. Thus, the second peak portion P2 and the second valley portion T2 of each second corrugated core 1221 are located at different positions in the third direction D3. That is to say, there is a hollow between the second peak portion P2 and the second valley portion T2 of each second corrugated core 1221 in the third direction D3. In this way, when the second surface layer 121 and / or the second bottom layer 123 are pressed by an external force, the second surface layer 121 and / or the second bottom layer 123 squeeze the second corrugated core 1221, and the second corrugated core 1221 undergoes elastic deformation, so that the second corrugated structure 12 can provide support and buffering in the third direction D3.

[0100] Refer to Figure 1 And cooperate with Figures 3 to 8 , in some embodiments, the second corrugated core 1221 extends along the second direction D2, and the first corrugated structure 11 and the second corrugated structure 12 overlap in the third direction D3. In these embodiments, there is a second height H2 between the second peak portion P2 and the second valley portion T2 in the third direction D3. In some embodiments, the second height H2 is equal to the first height H1. That is to say, the second height H2 is 4.5 to 5 millimeters (i.e., the second corrugated core 1221 adopts the A-flute specification). Thus, each second corrugated core 1221 of the second corrugated structure 12 adopts a specification with a higher corrugation height, and can provide a greater buffering force, and is thus suitable for carrying the receptacle A with fragile characteristics. However, the first height H1 can also be different from the second height H2. By increasing the number of layers of the first corrugated structure 11 or the second corrugated structure 12, the buffering force of the bottom 10 in the third direction D3 can also be improved.

[0101] In addition, since the length extension direction of the second corrugated core 1221 is different from that of the first corrugated core 1121, the first corrugated structure 11 and the second corrugated structure 12 that make up the bottom 10 can provide support and buffering forces in different directions. In some embodiments, the first corrugated core 1121 of the first corrugated structure 11 and the second corrugated core 1221 of the second corrugated structure 12 are crisscrossed. That is to say, the extension direction of the first corrugated core 1121 of the first corrugated structure 11 is perpendicular to the extension direction of the second corrugated core 1221 of the second corrugated structure 12, but this case is not limited thereto. In other embodiments, the extension direction of the first corrugated core 1121 can also form a non-90-degree angle with the extension direction of the second corrugated core 1221, and can also provide support and buffering forces in different directions.

[0102] See also Figure 1 And cooperate Figures 3 to 8 The peripheral side portion 20 is composed of a plurality of third corrugated structures 21 overlapping along the first direction D1 or the second direction D2, thereby the peripheral side portion 20 can provide support and cushioning for the packaging box structure in the second direction D2, thereby preventing the peripheral side portion 20 from being deformed due to force, thereby improving the protection of the packaging box structure in the second direction D2.

[0103] See also Figure 1 And cooperate Figures 3 to 8 In some embodiments, the length extension directions of the third corrugated core 2121 of the third corrugated structure 21 may be the same or different, but the present invention is not limited thereto. Figure 8 In the illustrated embodiment, the third corrugated structure 21 includes a plurality of third corrugated cores 2121 (such as Figure 8 The dotted circle selects a range as a third corrugated core 2121, and the third corrugated core 2121 of each third corrugated structure 21 extends along the third direction D3. In these embodiments, each third corrugated core 2121 has a third peak P3 and a third valley T3, the third peak P3 is the peak of the waveform of the third corrugated core 2121, and the third valley T3 is the trough of the waveform of the third corrugated core 2121. Thereby, the third peak portion P3 and the third valley portion T3 of each third corrugated core 2121 are located at different positions in the first direction D1 or the second direction D2, that is, a hollow is generated between the third peak portion P3 and the third valley portion T3 of each third corrugated core 2121 in the first direction D1 or the second direction D2. In this way, when the third surface layer 211 and / or the third bottom layer 213 are pressed by external force, the third surface layer 211 and / or the third bottom layer 213 squeeze the third corrugated core 2121, and the third corrugated core 2121 produces elastic deformation, so that the third corrugated structure 21 can provide support and buffering in the first direction D1 or the second direction D2.

[0104] See also Figure 1 And cooperate Figures 3 to 8 In the embodiment where the third corrugated core 2121 extends along the third direction D3 and each third corrugated structure 21 overlaps in the second direction D2, a third height H3 is provided between the third peak portion P3 and the third valley portion T3 in the second direction D2. In some embodiments, the third height H3 is preferably less than one of the first height H1 or the second height H2.

[0105] In addition, in these embodiments, the number of distributions of the third corrugated cores 2121 of the third corrugated layer 212 in the first direction D1 or the second direction D2 is greater than the number of distributions of the first corrugated cores 1121 of the first corrugated layer 112 in the second direction D2. That is to say, the number of corrugations of the third corrugated cores 2121 of the third corrugated structure 21 is greater than the number of corrugations of the first corrugated cores 1121 of the first corrugated structure 11 or the number of corrugations of the second corrugated cores 1221 of the second corrugated structure 12. Thereby, the bottom 10 of the packaging box structure can have a buffering force focused on the third direction D3, improving the load-bearing capacity, while the peripheral side portion 20 can improve the impact resistance based on the higher density of the number of corrugations of the third corrugated cores 2121, ensuring that the peripheral side portion 20 of the packaging box structure is not easily deformed. In some embodiments, the third height H3 is 2.5 to 3 millimeters (i.e., the third corrugated core 2121 adopts the B corrugation specification) or 3.5 to 4.0 millimeters (i.e., the third corrugated core 2121 adopts the C corrugation specification).

[0106] Refer to Figure 1 And in cooperation with Figures 3 to 8 , in some embodiments, the third corrugated structure 21 further includes a third intermediate layer 214. In these embodiments, both sides of the third intermediate layer 214 are respectively combined with the third corrugated layer 212, and the other sides of each third corrugated layer 212 combined with the third intermediate layer 214 are respectively combined with the third surface layer 211 and the third bottom layer 213. In this state, the third intermediate layer 214 is parallel between the third surface layer 211 and the third bottom layer 213. In some embodiments, the third corrugated cores 2121 of the third corrugated layers 212 on both sides of the third intermediate layer 214 are respectively of the B corrugation specification and the C corrugation specification, but the present case is not limited thereto. In some other embodiments, the third corrugated cores 2121 on both sides of the third intermediate layer 214 can also be both of the B corrugation specification or both of the C corrugation specification. Hereby, the third corrugated structure 21 becomes a five-layer corrugated structural form, but the present case is not limited thereto.

[0107] In some embodiments, the third corrugated structure 21 can also not include the third intermediate layer 214. In these embodiments, the number of one of the third surface layer 211 and the third bottom layer 213 of the third corrugated structure 21 is two (hereinafter, it is described with the number of the third bottom layer 213 being two), and the number of the third corrugated layers 212 is two. Hereby, both sides of one of the third bottom layers 213 are respectively combined with one side of each third corrugated layer 212, and the other sides of each third corrugated layer 212 are respectively combined with the third surface layer 211 and the other third bottom layer 213. Hereby, the third corrugated structure 21 is composed of a single-sided corrugation and a three-layer corrugation to form a five-layer structural form of a corrugated structure.

[0108] Refer to Figures 1 to 3, in some embodiments, the packaging box structure can be formed by bending. In these embodiments, the first corrugated structure 11 includes a support portion 11A and four extension portions 11B. The peripheral portion 20 is joined to the junction of the support portion 11A and each extension portion 11B, and each extension portion 11B wraps around the peripheral portion 20. Herein, the support portion 11A is formed corresponding to the contained object A contained in the packaging box structure. In some embodiments, the contained object A is a rectangular display panel, and the support portion 11A is formed into a rectangle corresponding to the display panel. Each extension portion 11B extends from the periphery of the support portion 11A in a direction away from the support portion 11A. Thus, after the peripheral portion 20 is joined to the junction of the support portion 11A and each extension portion 11B, each extension portion 11B is bent and wraps around the peripheral portion 20, thereby joining the bottom portion 10 to the peripheral portion 20.

[0109] Refer to Figure 1 , in some embodiments, the first corrugated structure 11 further includes a first engaging portion 11C. The first engaging portion 11C is located at the junction of the support portion 11A and each extension portion 11B. In these embodiments, one end of the extension portion 11B away from the support portion 11A has a second engaging portion 11D, and the second engaging portion 11D of the extension portion 11B can be detachably joined to the first engaging portion 11C. In some embodiments, the first engaging portion 11C and the second engaging portion 11D can be mutually cooperating concave-convex structures. For example Figure 1 in the illustrated embodiment, the first engaging portion 11C is a perforation, and the second engaging portion 11D is a tab. The tab-shaped second engaging portion 11D can be detachably disposed in the perforation-shaped first engaging portion 11C, but the present case is not limited thereto.

[0110] Refer to Figure 10 , Figure 10 is a partial structural cross-sectional view of another embodiment of the bottom of the packaging box structure of the present utility model. In some embodiments, the packaging box structure further includes a first adhesive layer 31. The first adhesive layer 31 is bonded between the first corrugated structure 11 and the second corrugated structure 12. In some embodiments where the first corrugated structure 11 is joined to the second bottom layer 123 of the second corrugated structure 12 with the first surface layer 111, the first adhesive layer 31 covers the first surface layer 111 and the second bottom layer 123, thereby ensuring the joining stability of the first corrugated structure 11 and the second corrugated structure 12.

[0111] Refer to Figure 11 , Figure 11 is a partial structural cross-sectional view of another embodiment of the peripheral portion of the packaging box structure of the present utility model. In some embodiments, the packaging box structure further includes a second adhesive layer 32. The second adhesive layers 32 are respectively bonded between adjacent third corrugated structures 21. In these embodiments, the second adhesive layer 32 covers the third surface layer 211 or the third bottom layer 213 of the third corrugated structure 21, thereby ensuring the joining stability between the third corrugated structures 21.

[0112] Refer to Figure 11 , in some embodiments, the packaging box structure further includes a third adhesive layer 33. In these embodiments, the third adhesive layer 33 is disposed on the extension portion 11B of the first corrugated structure 11. Thereby, when the extension portion 11B of the first corrugated structure 11 covers the peripheral side portion 20, the third adhesive layer 33 bonds the extension portion 11B and the peripheral side portion 20, improving the structural stability.

[0113] Refer to Figure 2 , in some embodiments, the first corrugated structure 11 further includes at least two first recesses 115, and each first recess 115 is disposed on at least two of the mutually opposite extension portions 11B. In these embodiments, each first recess 115 is located in the extension portion 11B and penetrates the extension portion 11B. Thereby, the hand or operating instrument of the operator can be hooked on the first recess 115, thereby facilitating the application of force for handling or operation. In some embodiments, corresponding recesses or through openings may also be provided at the positions of the third corrugated structures 21 of the peripheral side portion 20 corresponding to the first recesses 115, thereby increasing the depth or area of the first recesses 115 and improving the convenience of use.

[0114] Refer to Figure 1 and Figure 9 , Figure 9 is a perspective exploded view of another embodiment of the packaging box structure of the present utility model. In some embodiments, the first corrugated structure 11 of the bottom 10 of the packaging box structure further includes a plurality of second recesses 116, and each third corrugated structure 21 of the peripheral side portion 20 includes a plurality of convex portions 215. In these embodiments, each second recess 116 is located at the junction of the support portion 11A and the extension portion 11B and penetrates the first corrugated structure 11. The convex portions 215 of each third corrugated structure 21 are located on the side of the third corrugated structure 21 away from the bottom 10 in the third direction D3, and the positions of the convex portions 215 of each third corrugated structure 21 are in the same first direction D1 or second direction D2 position as the second recesses 116 of the first corrugated structure 11 and are in different third direction D3 positions. Thereby, when the extension portion 11B of the first corrugated structure 11 covers each third corrugated structure 21, a convex appearance can be generated corresponding to the convex portions 215 of each third corrugated structure 21. In this way, the packaging box structures can be stacked in the third direction D3, and when stacked, the second recesses 116 of the packaging box structures can be correspondingly sleeved on the convex portions 215 of the adjacent packaging box structures, thereby preventing slippage between the stacked packaging box structures and improving the stability of storage.

[0115] Refer to Figure 1 and Figure 9, in some embodiments, the packaging box structure further includes a plurality of buffer members 40. Each buffer member 40 can be fixed inside the packaging box structure or disposed between the articles A to achieve a buffering effect. In some embodiments, the buffer members 40 are made of elastic and earthquake-resistant materials. In these embodiments, the buffer members 40 can be, but are not limited to, made of EPE (Expandable Polyethylene), EPS (Expanded Polystyrene), EPP (Expanded polypropylene), EPO (Exposed Polymeric emulsio), or PU (Polyurethane) materials.

[0116] Refer to Figure 1 and Figure 9 , in some embodiments, the buffer member 40 includes a first buffer member 40A. The first buffer member 40A is attached to the inner peripheral side surface of the packaging box structure to avoid the lateral force on the article A. In some embodiments, the buffer member 40 includes a second buffer member 40B. The shape of the second buffer member 40B corresponds to the shape of the second corrugated structure 12. In these embodiments, the second buffer member 40B is disposed on the side of the second corrugated structure 12 opposite to the first corrugated structure 11 to provide buffering between the article A and the bottom 10. In some embodiments, the buffer member 40 includes a third buffer member 40C and a fourth buffer member 40D. In these embodiments, a plurality of articles A can be accommodated in the packaging box structure, and the articles A are stacked along the third direction D3. The third buffer member 40C and the fourth buffer member 40D are respectively disposed on opposite sides of each article A to provide buffering between the articles A. In some embodiments, the buffer member 40 includes a fifth buffer member 40E, which is disposed on the topmost layer of the article A and is located between two packaging box structures to provide protection for the topmost layer of the article A.

[0117] It should be noted that the quantity and position configuration of the buffer members 40 can be adjusted according to the type, requirements, or quantity of the article A. The buffer member 40 can include only one of the aforementioned buffer members 40, or can include all of the aforementioned buffer members 40. The quantity and position configuration of the aforementioned buffer members 40 are not limited thereto.

Claims

1. A packaging box structure, characterized in that: The packaging box structure includes: Bottom, including: A first corrugated structure comprises a first surface layer, a first bottom layer and a plurality of first corrugated layers, wherein the first corrugated layers are disposed between the first surface layer and the first bottom layer, and each of the first corrugated layers comprises a plurality of first corrugated cores, each of the first corrugated cores extending in a first direction and arranged in parallel in a second direction perpendicular to the first direction; as well as A second corrugated structure, comprising a second surface layer, a second bottom layer and a plurality of second corrugated layers, wherein the second corrugated layers are disposed between the second surface layer and the second bottom layer, each of the second corrugated layers comprises a plurality of second corrugated cores, and the direction in which the second corrugated cores extend has an angle with the first direction, the second corrugated structure overlaps the first corrugated structure along a third direction perpendicular to the first direction and the second direction, and the second bottom layer of the second corrugated structure is combined with the first surface layer of the first corrugated structure; as well as The peripheral side portion is arranged at the periphery of the second corrugated structure, and the peripheral side portion includes a plurality of third corrugated structures, each of the third corrugated structures respectively includes a third surface layer, a third bottom layer and a plurality of third corrugated layers, each of the third corrugated layers respectively includes a plurality of third corrugated cores, each of the third corrugated structures overlaps with each other along the first direction or the second direction, and the third corrugated structure is combined with the third bottom layer of the adjacent third corrugated structure by the third surface layer.

2. The packaging box structure according to claim 1, characterized in that: Each of the second corrugated cores extends along the second direction.

3. The packaging box structure according to claim 1, characterized in that: The first corrugated structure further includes a first intermediate layer. The number of the first corrugated layers is two, and the first intermediate layer is arranged between two first corrugated layers.

4. The packaging box structure according to claim 1, characterized in that: Each of the first corrugated cores has a first peak and a first valley, and a first height is formed between the first peak and the first valley in the third direction; each of the second corrugated cores has a second peak and a second valley, and a second height is formed between the second peak and the second valley in the third direction; each of the third corrugated cores has a third peak and a third valley, and a third height is formed between the third peak and the third valley of the third corrugated core in the first direction or the second direction, and the third height is smaller than the first height or the second height.

5. The packaging box structure according to claim 4, characterized in that: The first height is equal to the second height, and the third height is smaller than the first height and the second height.

6. The packaging box structure according to claim 4, characterized in that: The first height and the second height are 4.5-5.0 mm, and the third height is 2.5-3.0 mm or 3.5-4.0 mm.

7. The packaging box structure according to claim 5, characterized in that: The number of the first corrugated cores of the first corrugated layer distributed in the first direction is less than the number of the third corrugated cores of the third corrugated layer distributed in the first direction.

8. The packaging box structure according to claim 1, characterized in that: The second corrugated structure further includes a second intermediate layer. The number of the second corrugated layers is two. The second intermediate layer is disposed between two second corrugated layers.

9. The packaging box structure according to claim 1, characterized in that: The third corrugated structure further includes a third intermediate layer. The number of the third corrugated layers is two, and the third intermediate layer is arranged between two third corrugated layers.

10. The packaging box structure according to claim 1, characterized in that: The first corrugated structure includes a supporting portion and four extending portions. The peripheral side portion is combined at the junction of the supporting portion and each of the extending portions, and each of the extending portions covers the peripheral side portion.

11. The packaging box structure according to claim 1, characterized in that: The packaging box structure also includes a first adhesive layer bonded between the first corrugated structure and the second corrugated structure.

12. The packaging box structure according to claim 1, characterized in that: The packaging box structure also includes a plurality of second adhesive layers bonded between adjacent third corrugated structures.

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