Paper packaging box

Abstract

The utility model relates to the technical field of packaging, in particular to a paper packaging box. The paper packaging box comprises an outer box and at least two first clamping plates, each first clamping plate comprises a first bottom plate, two connected first buffer blocks are arranged on one side of each first bottom plate in a protruding mode, each first buffer block is provided with a limiting wall plate, and the two limiting wall plates are connected in an included angle mode. Wherein the two first clamping plates are oppositely arranged in the outer box, the first bottom plates are connected in a spliced mode, a containing cavity capable of containing a to-be-packaged product is defined by the four limiting wall plates, and the four limiting wall plates can abut against the peripheral face of the product. And the multiple first buffer blocks can achieve the buffering and damping effect on the circumferential direction of the product, and protection on the product is improved. Meanwhile, the four limiting wall plates abut against the peripheral face of the product, reliable positioning of the product is achieved, and the product is prevented from shaking or colliding in the outer box. The paper packaging box is made of paper materials, so that recycling is facilitated, and the environment-friendly performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a paper packaging box. Background Art

[0002] Fire stoves are key items for people to keep warm in winter, but during the transportation process, fire stoves are affected by uncontrollable factors (collision during transportation, etc.), and the products may be damaged when they are delivered to users, causing users to return or exchange the damaged fire stoves, which causes certain losses and increased costs to manufacturers.

[0003] Existing stoves are mostly packaged in a combination of carton and foam board, with the foam board used as a protective part and buffer component inside the carton to fix and protect the stove. However, the foam board itself is brittle and easy to break, and has poor bending resistance. At the same time, the foam board is easy to form particles and debris that are difficult to clean during packaging and unpacking, which is not only difficult to recycle but also not environmentally friendly. Utility Model Content

[0004] The utility model aims to provide a paper packaging box to improve the protection of products and facilitate recycling to improve environmental protection performance.

[0005] To achieve this purpose, the technical solution adopted by the utility model is:

[0006] A paper packaging box, comprising an outer box and at least two first cardboards, wherein the first cardboard comprises a first bottom plate, one side of the first bottom plate is convexly provided with two connected first buffer blocks, and each of the first buffer blocks has a limiting wall plate, and the two limiting wall plates are connected at an angle;

[0007] The two first clamping plates are relatively arranged in the outer box, and the first bottom plates are spliced ​​and connected, the four limiting wall plates are arranged to form a receiving cavity capable of accommodating the product to be packaged, and the four limiting wall plates can all be tightly pressed against the outer peripheral surface of the product.

[0008] As a preferred solution, the paper packaging box includes four first pallets, which are arranged in groups of two, and the two groups of first pallets are arranged in the outer box with upper and lower intervals, the upper end of the product is clamped in the accommodating cavity of the group of first pallets located above, and the lower end of the product is clamped in the accommodating cavity of the group of first pallets located below.

[0009] As a preferred embodiment, two first plate groups are arranged outward on one side of the first bottom plate, and the first plate group includes a first folding plate, a second folding plate and the limiting wall plate connected in sequence, the first folding plate is connected to the first bottom plate, the first plate group is bent toward the first bottom plate to form the first buffer block, and the side of the limiting wall plate away from the second folding plate is pressed against the first bottom plate.

[0010] As a preferred solution, the first plate group further includes a third folding plate, the limiting wall plate is connected to the third folding plate on a side away from the second folding plate, and the third folding plate is attached to the first bottom plate and pressed against the first folding plate.

[0011] As a preferred solution, a first plug hole is provided on the limiting wall plate, and a first plug tongue is provided on the first bottom plate, and the first plug tongue is plugged into the first plug hole.

[0012] As a preferred solution, the paper packaging box further includes:

[0013] A second card plate, the second card plate comprising a second bottom plate, at least two first grids protruding from the second bottom plate, and a first positioning groove formed between two adjacent first grids;

[0014] A third cardboard, the third cardboard comprising a third bottom plate, at least two second grids are convexly provided on the third bottom plate, and a second positioning groove is formed between two adjacent second grids;

[0015] The second clamping plate and the third clamping plate are arranged opposite to each other in the outer box and are located above the product; the second bottom plate and the third bottom plate are spliced ​​and connected, and the first positioning groove and the second positioning groove are arranged opposite to each other and jointly clamp and fix the accessories of the product.

[0016] As a preferred solution, the second card plate further includes at least two second plate groups spaced apart and arranged on one side of the second bottom plate, the second plate group includes a first inner plate, a second inner plate and a third inner plate connected in sequence, the first inner plate is connected to the second bottom plate, the second plate group is bent toward the second bottom plate to form the first grid, and the third inner plate is pressed against the second bottom plate on a side away from the second inner plate;

[0017] The third card plate also includes at least two third plate groups spaced apart on one side of the third bottom plate, the third plate group includes a fifth inner plate, a sixth inner plate and a seventh inner plate connected in sequence, the fifth inner plate is connected to the third bottom plate, the third plate group is bent toward the third bottom plate to form the second grid, and the seventh inner plate is pressed against the third bottom plate at one end away from the sixth inner plate.

[0018] As a preferred solution, the second clamping plate further includes a fourth inner plate, the third inner plates of the second plate group are all connected to the fourth inner plate, and the fourth inner plate is attached to the second bottom plate and pressed against the first inner plate;

[0019] The third clamping plate also includes an eighth inner plate, the seventh inner plates of the third plate group are all connected to the eighth inner plate, and the eighth inner plate is attached to the third bottom plate and pressed against the fourth inner plate.

[0020] As a preferred solution, the second bottom plate further includes a second buffer block arranged on the second bottom plate, and the third bottom plate further includes a third buffer block arranged on the third bottom plate, and the second buffer block and the third buffer block are both in contact with the inner wall of the outer box.

[0021] As a preferred solution, a cavity for accommodating the accessory is provided in the second buffer block, and an observation hole communicating with the cavity is formed through the second buffer block.

[0022] The beneficial effects of the utility model are:

[0023] The paper packaging box proposed by the utility model includes an outer box and at least two first cardboards, the two first cardboards are relatively arranged in the outer box and the first bottom plates are spliced ​​and connected, so that four limiting wall panels are arranged to form a receiving cavity that can accommodate the product, and the four limiting wall panels can be tightly pressed against the outer peripheral surface of the product. Multiple first buffer blocks can have a buffering and shock-absorbing effect on the product, thereby improving the protection of the product. At the same time, the four limiting wall panels are tightly pressed against the outer peripheral surface of the product, realizing reliable positioning of the product, avoiding shaking or collision of the product in the outer box, and further improving the safety of the product. In addition, the paper packaging box is made of reusable paper material, which is easy to recycle and improves the environmental performance of the paper packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a paper packaging box provided by an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the structural decomposition of the interior of the outer box provided by an embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a first card board provided in an embodiment of the utility model;

[0027] Figure 4 It is a planar expansion diagram of the first card board provided in the embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a second card board provided in an embodiment of the utility model;

[0029] Figure 6 It is a planar expansion diagram of the second card board provided in the embodiment of the utility model;

[0030] Figure 7 It is a structural schematic diagram of a third card board provided in an embodiment of the utility model;

[0031] Figure 8 It is a planar expansion diagram of the third clamping plate provided in the embodiment of the utility model.

[0032] The names and numbers of the components in the figure are as follows:

[0033] 10. Products; 20. Accessories;

[0034] 1. Outer box; 11. Lower box; 12. Swing lid;

[0035] 2. first clamping plate; 21. first bottom plate; 211. first plug tongue; 212. avoidance hole; 22. first folding plate; 23. second folding plate; 24. position limiting wall plate; 241. first plug hole; 25. third folding plate; 26. first buffer block; 27. accommodating cavity;

[0036] 3. second card plate; 31. second bottom plate; 311. second plug tongue; 312. third plug tongue; 32. first inner plate; 33. second inner plate; 34. third inner plate; 341. second plug hole; 35. fourth inner plate; 36. second buffer block; 361. fourth folding plate; 362. fifth folding plate; 363. sixth folding plate; 3631. third plug hole; 364. seventh folding plate; 37. first grid; 38. first positioning groove;

[0037] 4. Third card plate; 41. Third bottom plate; 411. Fourth plug tongue; 412. Fifth plug tongue; 42. Fifth inner plate; 43. Sixth inner plate; 44. Seventh inner plate; 441. Fourth plug hole; 45. Eighth inner plate; 46. Third buffer block; 461. Eighth folding plate; 462. Ninth folding plate; 4621. Observation hole; 463. Tenth folding plate; 4631. Fifth plug hole; 464. Eleventh folding plate; 47. Second grid; 48. Second positioning groove. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0043] Existing stoves are mostly packaged in a combination of carton and foam board, with the foam board used as a protective part and buffer component inside the carton to fix and protect the stove. However, the foam board itself is brittle and easy to break, and has poor bending resistance. At the same time, the foam board is easy to form particles and debris that are difficult to clean during packaging and unpacking, which is not only difficult to recycle but also not environmentally friendly.

[0044] To solve the above problems, Figure 1 and Figure 2As shown, this embodiment proposes a paper packaging box, which includes an outer box 1 and at least two first cardboards 2, the first cardboard 2 includes a first bottom plate 21, one side of the first bottom plate 21 is convexly provided with two connected first buffer blocks 26, and each first buffer block 26 has a limiting wall plate 24, and the two limiting wall plates 24 are connected at an angle. The two first cardboards 2 are relatively arranged in the outer box 1, and the first bottom plates 21 are spliced ​​and connected, and the four limiting wall plates 24 are surrounded to form a receiving cavity 27 that can accommodate the product 10 to be packaged, and the four limiting wall plates 24 can be tightly pressed against the outer peripheral surface of the product 10.

[0045] By arranging the two first cardboards 2 relatively in the outer box 1 and splicing the first bottom plate 21 together, the four limiting wall panels 24 are arranged to form a receiving cavity 27 capable of accommodating the product 10, and the four limiting wall panels 24 can all be tightly pressed against the outer peripheral surface of the product 10. The multiple first buffer blocks 26 can have a buffering and shock-absorbing effect on the product 10, thereby improving the protection of the product 10. At the same time, the four limiting wall panels 24 are all tightly pressed against the outer peripheral surface of the product 10, thereby achieving reliable positioning of the product 10, preventing the product 10 from shaking or colliding in the outer box 1, and further improving the safety of the product 10. In addition, the paper packaging box is made of reusable paper material, which is easy to recycle and improves the environmental performance of the paper packaging box.

[0046] Specifically, the outer box 1 includes a lower box body 11 with an opening at the upper end and a swing cover 12 movably connected to the lower box body 11, and the swing cover 12 can block or open the opening of the lower box body 11. When the product 10 is packaged, the swing cover 12 flips outward and opens the lower box body 11. After the first cardboard 2 and the product 10 are placed in the lower box body 11 in sequence, the swing cover 12 flips inward and blocks the lower box body 11. The outer box 1 can completely wrap the product 10, thereby improving the protection of the product 10. The lower box body 11 and the swing cover 12 of this embodiment are integrally formed and formed by bending a piece of cardboard, thereby improving the processing efficiency of the outer box 1.

[0047] like Figure 1 and Figure 2 As shown, the product 10 of this embodiment is a stove in the shape of a regular hexagon. Of course, the product 10 can also be a stove or other items in the shape of a quadrilateral or a circle, etc., which is not specifically limited here. The four circumferential sides of the stove are respectively pressed against the four limiting wall panels 24 on the two first clamping plates 2 in a one-to-one correspondence, thereby achieving a stable installation of the stove. At the same time, the first buffer block 26 is a right-angled triangle structure, and the limiting wall panels 24 are located at the hypotenuse position of the triangle structure. The two limiting wall panels 24 on the same first clamping plate 2 are connected to form a V-shaped structure, and the angle of the V-shaped structure is equal to the inner angle of the stove (that is, both are 120°), so that the limiting wall panels 24 and the corresponding circumferential sides of the stove are tightly fitted together.

[0048] like Figure 2 and Figure 3 As shown, the paper packaging box includes four first cardboards 2, and the four first cardboards 2 are arranged in groups of two. The two groups of first cardboards 2 are arranged in the outer box 1 at intervals from top to bottom. The upper end of the product 10 is clamped in the accommodating cavity 27 of the group of first cardboards 2 located at the top, and the lower end of the product 10 is clamped in the accommodating cavity 27 of the group of first cardboards 2 located at the bottom. The two groups of first cardboards 2 are arranged symmetrically up and down, which realizes the fixation and protection of the upper and lower ends of the stove, and further improves the stability of the stove in the outer box 1. In addition, the first bottom plates 21 of the two first cardboards 2 located at the top are spliced ​​to form a plane that carries the accessories 20 of the stove. The first bottom plate 21 is also provided with an avoidance hole 212 for the accessories 20 to avoid interference between the accessories 20 and the first cardboard 2.

[0049] Now combined Figure 3 and Figure 4 The structure of the first card plate 2 is described in detail. Figure 3 and Figure 4 As shown, two first plate groups are disposed outwardly on one side of the first bottom plate 21, and the first plate group includes a first folding plate 22, a second folding plate 23 and a limiting wall plate 24 connected in sequence, the first folding plate 22 is connected to the first bottom plate 21, the first plate group is bent toward the first bottom plate 21 to form a first buffer block 26, and the side of the limiting wall plate 24 away from the second folding plate 23 is pressed against the first bottom plate 21. Specifically, the first buffer block 26 with a hollow interior is formed by bending the first plate group toward the first bottom plate 21, thereby improving the buffering effect of the first buffer block 26.

[0050] Furthermore, the first plate group further includes a third folding plate 25, and the limiting wall plate 24 is connected to the third folding plate 25 on the side away from the second folding plate 23, and the third folding plate 25 is attached to the first bottom plate 21 and pressed against the first folding plate 22. The third folding plate 25 is attached to the first bottom plate 21 and the third folding plate 25 is pressed against the first folding plate 22, thereby improving the structural strength and stability of the first buffer block 26.

[0051] Furthermore, if Figure 3 and Figure 4 As shown, the limiting wall plate 24 is provided with a first insertion hole 241, and the first bottom plate 21 is provided with a first insertion tongue 211, and the first insertion tongue 211 is inserted into the first insertion hole 241. The limiting wall plate 24 is provided with a plurality of first insertion holes 241 at intervals, and the first bottom plate 21 is provided with the same number of first insertion tongues 211. When the first plate group is bent to form the first buffer block 26, the first insertion tongue 211 is inserted into the corresponding first insertion hole 241, so as to prevent the first buffer block 26 from being deformed when it is impacted or squeezed, thereby improving the stability of the first buffer block 26.

[0052] like Figure 2As shown, the paper packaging box also includes a second cardboard 3 and a third cardboard 4, the second cardboard 3 includes a second bottom plate 31, at least two first grids 37 are convexly provided on the second bottom plate 31, and a first positioning groove 38 is formed between two adjacent first grids 37. The third cardboard 4 includes a third bottom plate 41, at least two second grids 47 are convexly provided on the third bottom plate 41, and a second positioning groove 48 is formed between two adjacent second grids 47. The second cardboard 3 and the third cardboard 4 are arranged in the outer box 1 relative to each other and are located above the product 10. The second bottom plate 31 and the third bottom plate 41 are spliced ​​and connected, and the first positioning groove 38 and the second positioning groove 48 are arranged opposite to each other and jointly clamp and fix the accessories 20 of the product 10. Since the accessories 20 of the stove are mostly tubular parts, the same accessory 20 is fixed by the first positioning groove 38 and the second positioning groove 48 facing each other, so that the stable installation of the accessories 20 is achieved, so that different accessories 20 will not move or collide with each other, and the management and protection of the accessories 20 are improved. At the same time, the second clamping plate 3 and the third clamping plate 4 are placed above the oven, so that the operator and the user can observe whether the accessories 20 are complete and confirm whether the accessories 20 are missing or lost in time.

[0053] Now combined Figures 5 to 8 The structures of the second card plate 3 and the third card plate 4 are described in detail. Figures 5 to 8 As shown, the second cardboard 3 also includes at least two second plate groups arranged at intervals on one side of the second bottom plate 31, the second plate group includes a first inner plate 32, a second inner plate 33 and a third inner plate 34 connected in sequence, the first inner plate 32 is connected to the second bottom plate 31, the second plate group is bent toward the second bottom plate 31 to form a first grid 37, and the third inner plate 34 is pressed against the second bottom plate 31 away from the second inner plate 33. The third cardboard 4 also includes at least two third plate groups arranged at intervals on one side of the third bottom plate 41, the third plate group includes a fifth inner plate 42, a sixth inner plate 43 and a seventh inner plate 44 connected in sequence, the fifth inner plate 42 is connected to the third bottom plate 41, the third plate group is bent toward the third bottom plate 41 to form a second grid 47, and the seventh inner plate 44 is pressed against the third bottom plate 41 away from the sixth inner plate 43. The first grid 37 with a hollow interior is formed by bending the second plate group toward the second bottom plate 31, thereby improving the buffering effect of the first grid 37. The third plate group is bent toward the third bottom plate 41 to form the second grid 47 with a hollow interior, thereby improving the buffering effect of the second grid 47 .

[0054] Further, the second card plate 3 also includes a fourth inner plate 35, the third inner plates 34 of the second plate group are all connected to the fourth inner plate 35, the fourth inner plate 35 is attached to the second bottom plate 31 and is pressed against the first inner plate 32. The third card plate 4 also includes an eighth inner plate 45, the seventh inner plates 44 of the third plate group are all connected to the eighth inner plate 45, the eighth inner plate 45 is attached to the third bottom plate 41 and is pressed against the fourth inner plate 35. The fourth inner plate 35 is attached to the second bottom plate 31 and the fourth inner plate 35 is pressed against the first inner plate 32, so that the structural strength and stability of the first grid 37 are improved, and the accessory 20 can be firmly positioned. The eighth inner plate 45 is attached to the third bottom plate 41 and the eighth inner plate 45 is pressed against the second inner plate 33, so that the structural strength and stability of the second grid 47 are improved, and the accessory 20 can be firmly positioned.

[0055] Furthermore, if Figure 5 and Figure 6 As shown, the third inner plate 34 is provided with a second insertion hole 341, and the second bottom plate 31 is provided with a second insertion tongue 311, and the second insertion tongue 311 is inserted into the second insertion hole 341. The third inner plate 34 is provided with a plurality of second insertion holes 341 at intervals, and the second bottom plate 31 is provided with the same number of second insertion tongues 311. When the second plate group is bent to form the first grid 37, the second insertion tongue 311 is inserted into the corresponding second insertion hole 341, so as to prevent the first grid 37 from being deformed and improve the stability of the first grid 37. Figure 7 and Figure 8 As shown, the seventh inner plate 44 is provided with a fourth plug hole 441, and the third bottom plate 41 is provided with a fourth plug tongue 411, which is plugged into the fourth plug hole 441. A plurality of fourth plug holes 441 are provided at intervals on the seventh inner plate 44, and the third bottom plate 41 is provided with the same number of fourth plug tongues 411. When the third plate group is bent to form the second grid 47, the fourth plug tongue 411 is plugged into the corresponding fourth plug hole 441, so as to prevent the second grid 47 from being deformed and improve the stability of the second grid 47.

[0056] like Figure 1 and Figure 2As shown, the second bottom plate 31 further includes a second buffer block 36 disposed on the second bottom plate 31, and the third bottom plate 41 further includes a third buffer block 46 disposed on the third bottom plate 41, and the second buffer block 36 and the third buffer block 46 are both in contact with the inner wall of the outer box 1. The second buffer block 36 and the third buffer block 46 are disposed opposite to each other, and the accessory 20 is located between the second buffer block 36 and the third buffer block 46. The second buffer block 36 and the third buffer block 46 are of equal height and are both higher than the height of the accessory 20, providing an installation space in the height direction for installing the accessory 20, avoiding contact or friction between the accessory 20 and the outer box 1, and improving the protection of the accessory 20. At the same time, the second buffer block 36 and the third buffer block 46 are both in contact with the inner wall of the outer box 1, realizing the stable installation of the second cardboard 3 and the third cardboard 4, and further improving the stability of the accessory 20 inside the outer box 1.

[0057] Specifically, Figure 6 As shown, the second clamping plate 3 also includes a fourth plate group, which includes a fourth folding plate 361, a fifth folding plate 362, a sixth folding plate 363 and a seventh folding plate 364 connected in sequence, the fourth folding plate 361 is connected to the second bottom plate 31, and the fourth plate group and the second plate group are respectively arranged on opposite sides of the second bottom plate 31. The fourth plate group is bent toward the second bottom plate 31 to form a second buffer block 36 with a hollow structure, which improves the buffering effect and structural strength of the second buffer block 36. Figure 8 As shown, the third clamping plate 4 also includes a fifth plate group, which includes an eighth folding plate 461, a ninth folding plate 462, a tenth folding plate 463 and an eleventh folding plate 464 connected in sequence, the fifth folding plate 462 is connected to the third bottom plate 41, and the fifth plate group and the third plate group are respectively arranged on opposite sides of the third bottom plate 41. The fifth plate group is bent toward the third bottom plate 41 to form a third buffer block 46 with a hollow structure, thereby improving the buffering effect and structural strength of the third buffer block 46.

[0058] Furthermore, if Figure 5 and Figure 6 As shown, the sixth folding plate 363 is provided with a third insertion hole 3631, and the second bottom plate 31 is provided with a third insertion tongue 312, which is inserted into the third insertion hole 3631. The sixth folding plate 363 is provided with a plurality of third insertion holes 3631 at intervals, and the second bottom plate 31 is provided with the same number of third insertion tongues 312. When the fourth plate group is bent to form the second buffer block 36, the third insertion tongue 312 is inserted into the corresponding third insertion hole 3631, so as to prevent the second buffer block 36 from being deformed and improve the stability of the second buffer block 36. Figure 7 and Figure 8As shown, the tenth folding plate 463 is provided with a fifth insertion hole 4631, and the third bottom plate 41 is provided with a fifth insertion tongue 412, which is inserted into the fifth insertion hole 4631. The tenth folding plate 463 is provided with a plurality of fifth insertion holes 4631 at intervals, and the third bottom plate 41 is provided with the same number of fifth insertion tongues 412. When the fifth plate assembly is bent to form the third buffer block 46, the fifth insertion tongue 412 is inserted into the corresponding fifth insertion hole 4631, so as to prevent the third buffer block 46 from being deformed and improve the stability of the third buffer block 46.

[0059] It should be noted that if Figure 2 and Figure 5 As shown, a baffle is punched out in the middle of the fifth folding plate 362 and the sixth folding plate 363 in the second buffer block 36, and the baffle is spaced apart from a group of first positioning grooves 38 and second positioning grooves 48 facing each other, so that the baffle can limit the accessory 20 fixed to the group of first positioning grooves 38 and second positioning grooves 48, thereby further realizing the reliable installation of the accessory 20.

[0060] like Figure 7 and Figure 8 As shown, the second buffer block 36 has a cavity for accommodating the accessories 20, and the second buffer block 36 is provided with an observation hole 4621 communicating with the cavity. By installing some accessories 20 in the second buffer block 36, the installation space of the accessories 20 is increased, and the management and protection of the accessories 20 are improved. At the same time, the observation hole 4621 is convenient for operators and users to observe whether the accessories 20 are complete, and to promptly confirm whether the accessories 20 in the second buffer block 36 are missing or lost.

[0061] In the paper packaging box of this embodiment, the outer box 1, the first cardboard 2, the second cardboard 3 and the first cardboard 2 are respectively folded from a piece of corrugated paper, which is easy to assemble, saves materials and has strong structural performance. At the same time, the paper packaging box is green and environmentally friendly, recyclable and can meet the ISTA6A transportation test requirements.

[0062] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Paper packaging box, It is characterized in that The invention comprises an outer box (1) and at least two first cardboards (2), wherein the first cardboard (2) comprises a first bottom plate (21), two connected first buffer blocks (26) are protrudingly provided on one side of the first bottom plate (21), and each of the first buffer blocks (26) has a limiting wall plate (24), and the two limiting wall plates (24) are connected at an angle; The two first clamping plates (2) are arranged opposite to each other in the outer box (1), and the first bottom plate (21) is spliced ​​and connected, and the four limiting wall plates (24) are arranged to form a receiving cavity (27) capable of receiving the product (10) to be packaged, and the four limiting wall plates (24) can all be tightly pressed against the outer peripheral surface of the product (10).

2. The paper packaging box according to claim 1, It is characterized in that The paper packaging box comprises four first cardboards (2), the four first cardboards (2) are arranged in groups of two, and the two groups of first cardboards (2) are arranged in the outer box (1) with an upper and lower interval, the upper end of the product (10) is clamped in the accommodating cavity (27) of the group of first cardboards (2) located above, and the lower end of the product (10) is clamped in the accommodating cavity (27) of the group of first cardboards (2) located below.

3. The paper packaging box according to claim 2, It is characterized in that Two first plate groups are arranged outwardly on one side of the first bottom plate (21), the first plate group comprising a first folding plate (22), a second folding plate (23) and the limiting wall plate (24) which are connected in sequence, the first folding plate (22) being connected to the first bottom plate (21), the first plate group being bent toward the first bottom plate (21) to form the first buffer block (26), and the limiting wall plate (24) being pressed against the first bottom plate (21) on a side away from the second folding plate (23).

4. The paper packaging box according to claim 3, It is characterized in that The first plate group also includes a third folding plate (25), the limiting wall plate (24) is connected to the third folding plate (25) at a side away from the second folding plate (23), and the third folding plate (25) is attached to the first bottom plate (21) and pressed against the first folding plate (22).

5. The paper packaging box according to claim 3, It is characterized in that The limiting wall plate (24) is provided with a first plug hole (241), the first bottom plate (21) is provided with a first plug tongue (211), and the first plug tongue (211) is plugged into the first plug hole (241).

6. The paper packaging box according to claim 1, It is characterized in that The paper packaging box also includes: A second card plate (3), the second card plate (3) comprising a second bottom plate (31), at least two first grids (37) protruding from the second bottom plate (31), and a first positioning groove (38) formed between two adjacent first grids (37); A third clamping plate (4), the third clamping plate (4) comprising a third bottom plate (41), at least two second grids (47) protruding from the third bottom plate (41), and a second positioning groove (48) formed between two adjacent second grids (47); The second clamping plate (3) and the third clamping plate (4) are arranged opposite to each other in the outer box (1) and are located above the product (10); the second bottom plate (31) and the third bottom plate (41) are spliced ​​and connected, and the first positioning groove (38) and the second positioning groove (48) are arranged opposite to each other and jointly clamp and fix the accessory (20) of the product (10).

7. The paper packaging box according to claim 6, It is characterized in that The second clamping plate (3) further comprises at least two second plate groups spaced apart and arranged on one side of the second bottom plate (31), the second plate group comprising a first inner plate (32), a second inner plate (33) and a third inner plate (34) connected in sequence, the first inner plate (32) being connected to the second bottom plate (31), the second plate group being bent toward the second bottom plate (31) to form the first grid (37), and the third inner plate (34) being pressed against the second bottom plate (31) on a side away from the second inner plate (33); The third card plate (4) also includes at least two third plate groups spaced apart on one side of the third bottom plate (41), the third plate group including a fifth inner plate (42), a sixth inner plate (43) and a seventh inner plate (44) connected in sequence, the fifth inner plate (42) being connected to the third bottom plate (41), the third plate group being bent toward the third bottom plate (41) to form the second grid (47), and the seventh inner plate (44) being pressed against the third bottom plate (41) at one end away from the sixth inner plate (43).

8. The paper packaging box according to claim 7, It is characterized in that The second clamping plate (3) further comprises a fourth inner plate (35), the third inner plates (34) of the second plate group are all connected to the fourth inner plate (35), and the fourth inner plate (35) is attached to the second bottom plate (31) and pressed against the first inner plate (32); The third clamping plate (4) also includes an eighth inner plate (45), the seventh inner plate (44) of the third plate group is connected to the eighth inner plate (45), and the eighth inner plate (45) is attached to the third bottom plate (41) and pressed against the fourth inner plate (35).

9. The paper packaging box according to claim 7, It is characterized in that The second bottom plate (31) further includes a second buffer block (36) arranged on the second bottom plate (31), and the third bottom plate (41) further includes a third buffer block (46) arranged on the third bottom plate (41), and the second buffer block (36) and the third buffer block (46) are both in contact with the inner wall of the outer box (1).

10. The paper packaging box according to claim 9, It is characterized in that The second buffer block (36) has a cavity therein for accommodating the accessory (20), and the second buffer block (36) is provided with an observation hole (4621) which is in communication with the cavity.

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