Packaging box and supporting piece in box body of packaging box

By designing internal support components suitable for different sizes and box types, the stability and strength of the packaging boxes are enhanced, solving the problems of insufficient pressure resistance and breathability of existing fruit packaging boxes, and achieving an effective protection of the fruit.

CN223935194UActive Publication Date: 2026-02-24GUANGZHOU SIRIER GREEN PACKAGING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520584758.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-24
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing fruit packaging boxes are inadequate in terms of pressure resistance and breathability, especially paper packaging boxes which have low structural strength and are difficult to effectively protect perishable fruits.

Method used

Design an internal support component for a packaging box, including pillars and support plates, which enhances the stability and strength of the packaging box through structures such as interlocking grooves and limiting protrusions, and is suitable for packaging boxes of different sizes and shapes.

Benefits of technology

It improves the overall structural stability and load-bearing capacity of the packaging box, extends its service life, prevents fruit from being damaged during transportation, and is low in cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the box body internal supporting piece, the box body internal supporting piece comprising the supporting column and the supporting plate is installed at the box corner of the packaging box, so that the stability and strength of the whole structure of the packaging box are enhanced, stable supporting is provided for the packaging box, and the bearing capacity and durability of the packaging box are improved. And the service life of the packaging box is prolonged. The utility model further provides a packaging box comprising the supporting piece inside the box body, the supporting columns are connected to the corresponding openings of the polygonal bottom plate of the packaging box in a sleeved mode, so that the adjacent ends of the two side plates which are arranged adjacently are inserted into the inserting grooves, and then the supporting piece inside the box body is installed in the packaging box. Therefore, the stability and strength of the whole structure of the packaging box can be enhanced, and the bearing capacity and durability of the packaging box can be improved. Meanwhile, the supporting piece in the box body can be selected according to the size of the box body and installed on any box body with the box corner provided with the opening, and therefore the supporting piece in the box body can be installed on any box body with any size and any box type.
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Description

Technical Field

[0001] This utility model relates to the technical field of packaging box structural components, and in particular to a packaging box and its internal support components. Background Technology

[0002] With the rapid development of agricultural technology in my country, the variety of fruits has become increasingly abundant and their quality has significantly improved. To ensure that these fresh fruits can be delivered to consumers safely and undamaged, they need to undergo professional packaging.

[0003] Currently, fruits are commonly packaged using plastic and paper boxes combined with foam materials. Plastic boxes are strong, resistant to deformation, and have a long lifespan, effectively preventing damage to fruits during transportation due to collisions, but their production cost is relatively high. In contrast, paper boxes are cheaper and easier to print various designs on, but their structural strength is relatively low, and they are insufficient in terms of pressure resistance and breathability, offering limited protection for perishable fruits.

[0004] Therefore, it is necessary to provide a new type of packaging box with high structural strength. Utility Model Content

[0005] Based on the requirements for structural strength and compressive resistance of packaging boxes commonly used in the prior art, this utility model provides an internal support component for the packaging box body.

[0006] An internal support component for inserting into a corner of a packaging box includes a base, a support column and a support plate on the base, the support plate being located outside the support column and forming an insertion groove between the support plate and the support column; the top of the support column has an upwardly protruding column, the upper surface of the column being higher than the upper surface of the support plate; the bottom of the base has a slot for accommodating the column.

[0007] Furthermore, the support plate has a snap fastener on the side away from the pillar, and the snap fastener has a through hole; the end of the snap fastener that connects to the support plate has a folding groove, and the snap fastener is folded through the folding groove and fastened to the through hole on the pillar.

[0008] Furthermore, the top of the support plate extends horizontally in a direction away from the pillar to form a support platform.

[0009] Furthermore, the support plate includes a first support plate and a second support plate, and the adjacent ends of the first support plate and the second support plate are connected to each other and form an included angle; the connection between the first support plate and the second support plate is connected to the pillar through a partition plate.

[0010] Furthermore, the support column protrudes outward from the side near the support plate to form at least one limiting protrusion, and the limiting protrusion is arranged along the length direction of the support column.

[0011] Furthermore, the support plate protrudes from the side near the pillar to form at least one downwardly extending limiting protrusion.

[0012] A packaging box includes a polygonal base plate and a cover plate. Each side of the polygonal base plate has a side plate vertically arranged, and a box opening is formed at the end away from the polygonal base plate. The cover plate is used to close the box opening. The box also includes a plurality of internal support members as described above. Each corner of the polygonal base plate has an opening that matches the shape and size of the support column. The internal support members are arranged between any two adjacent side plates, and the support columns are all fitted onto the corresponding openings, so that the adjacent ends of the two side plates are inserted into the insertion slots, and the bottom of the side plates and the polygonal base plate abuts against the top surface of the base.

[0013] Furthermore, the cover plate is provided with a first fixing hole corresponding to each of the columns. When the cover plate closes the box opening, the columns pass through the first fixing holes.

[0014] Furthermore, the support plate protrudes from the side near the pillar to form at least one downwardly extending limiting protrusion, and each side plate is provided with mounting holes corresponding to the limiting protrusions. When the side plate is inserted into the insertion slot, the limiting protrusions pass through the mounting holes.

[0015] Furthermore, at least one side panel has a folded plate on the side away from the polygonal base plate, and the folded plate has a second fixing hole and / or a notch respectively; the notch matches the shape and size of the internal support member of the box body, and the folded plates are all folded vertically into the polygonal base plate, so that the column of the corresponding packaging box support member passes through the second fixing hole and / or the corresponding packaging box support member passes through the notch; the cover plate is located above the folded plate.

[0016] Furthermore, at least one side panel has a buckle plate on the side away from the polygonal base plate. The buckle plate has two third fixing holes. The buckle plate is folded vertically into the polygonal base plate, and the third fixing holes are respectively passed through by the columns of the internal support members of the box on both sides of the side panel connected to the buckle plate. The buckle plate is located above the cover plate.

[0017] The beneficial effects of this utility model are as follows: This utility model provides an internal support component for a box. By installing the internal support component, which includes a pillar and a support plate, onto the corner of the box, the stability and strength of the overall structure of the box are enhanced, providing stable support for the box and improving its load-bearing capacity and durability, thereby extending the service life of the box. Simultaneously, because the upper surface of the pillar is higher than the upper surface of the support plate, when boxes are stacked, the support from the pillar and support plate prevents the upper box from pressing against the cover plate, making it more pressure-resistant and thus avoiding damage to the contents. Furthermore, the slot of the base of the upper internal support component can fit onto the pillar of the corresponding lower internal support component, further improving the stability of stacked boxes and making them more pressure-resistant, thus preventing damage to the contents.

[0018] This utility model also provides a packaging box including the aforementioned internal support components. By fitting the support column into the corresponding opening of the polygonal base plate of the packaging box, the adjacent ends of two adjacent side plates in the packaging box are inserted into the insertion slots, thereby realizing the installation of the internal support components inside the packaging box. This enhances the stability and strength of the overall structure of the packaging box, provides solid support for the packaging box, improves the load-bearing capacity and durability of the packaging box, and extends the service life of the packaging box. Furthermore, it is low-cost and convenient for loading, transportation, and storage. Simultaneously, different sizes of internal support components can be selected according to the box size and installed on any box body with openings at any corner, thus realizing the installation of the internal support components on any size and box type. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of an internal support component for a box provided by this utility model;

[0020] Figure 2 A top view of the internal support structure of a box provided by this utility model;

[0021] Figure 3 A schematic diagram showing the installation state of an internal support component for a bag body provided by this utility model;

[0022] Figure 4 A schematic diagram of the bottom structure of an internal support component for a box provided by this utility model;

[0023] Figure 5 A side view of the internal support component of a box provided by this utility model;

[0024] Figure 6 A schematic diagram showing the snap-fitting state of the internal support component of the box in the installation state with the column.

[0025] Figure 7 This is a schematic diagram of the unfolded planar structure of a packaging box without internal support components installed, which is provided by this utility model.

[0026] Attached Figure Labels

[0027] 1. Base; 101. Groove; 2. Support column; 21. Column; 3. Support plate; 301. First support plate; 302. Second support plate; 4. Insertion groove; 41. First insertion groove; 42. Second insertion groove; 5. Divider plate; 6. Limiting protrusion; 7. Limiting protrusion; 8. Snap fastener; 81. Through hole; 82. Folding groove; 9. Support platform;

[0028] 901. Polygonal base plate; 10. Rectangular base plate; 11. Side plate; 111. First rectangular side plate; 112. Second rectangular side plate; 113. Third rectangular side plate; 114. Fourth rectangular side plate; 12. Cover plate; 13. Opening; 131. First opening; 132. Second opening; 133. Third opening; 134. Fourth opening; 15. First fixing hole; 16. First folding plate; 17. Second folding plate; 18. Second fixing hole A; 19. Second fixing hole B; 20. Notch A; 21. Notch B; 22. Buckle plate; 23. Third fixing hole; 24. Mounting hole. Detailed Implementation

[0029] To provide a more detailed description of this utility model, the following description is provided in conjunction with the accompanying drawings. It should be noted that the embodiments described below are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] Example 1

[0031] refer to Figure 1 and Figure 3 As shown, an internal support component for a box is used to insert into the corner of a packaging box. It includes a base 1, a support column 2 and a support plate 3 on the base 1, the support plate 3 being located outside the support column 2, and an insertion groove 4 being formed between the support plate 3 and the support column 2.

[0032] By placing internal support components at the corners of the packaging box, the stability and strength of the overall structure of the packaging box can be enhanced, providing solid support for the packaging box, which helps to improve the load-bearing capacity and durability of the packaging box, thereby extending the service life of the packaging box.

[0033] Specifically, refer to Figure 2 , Figure 3 and Figure 4As shown, the support plate 3 includes a first support plate 301 and a second support plate 302, and adjacent ends of the first support plate 301 and the second support plate 302 are connected to each other, forming an included angle. In this embodiment, the included angle is 90 degrees.

[0034] The first support plate 301 and the second support plate 302 are connected to the pillar 2 via a partition plate 5. The partition plate 5 further enhances the structural strength of the internal support components and divides the insertion slot 4 into a first insertion slot 401 and a second insertion slot 402. When the internal support component is inserted into the corner of the box, the opening at the bottom of the corner passes through the pillar 2, and the sides of the corner are respectively inserted into the first insertion slot 401 and the second insertion slot 402, thereby fixing the internal support component at the corner of the box.

[0035] The top of the support column 2 is provided with an upwardly protruding column 21, the upper surface of the column 21 is higher than the upper surface of the support plate 3, and the bottom of the base 1 is provided with a slot 101 that can accommodate the column 21.

[0036] When the height of the side of the box corner is lower than or equal to the height of the support plate 3, the upper surface of the column 21 is higher than the upper surface of the support plate 3. When the packaging boxes with the internal support components of the box are stacked, the support of the column 21 and the support plate 3 can prevent the upper layer of packaging boxes from pressing down on the lower layer of packaging boxes, making them more resistant to pressure and thus avoiding damage to the items inside the packaging boxes.

[0037] Meanwhile, when the packaging boxes are stacked, the slot 101 of the base 1 of the upper box internal support is fitted onto the column 21 of the corresponding support column 2 of the lower box internal support, thereby improving the stability of the stacked packaging boxes and preventing the upper layer of packaging boxes from pressing down on the lower layer of packaging boxes, making them more resistant to pressure, thus avoiding damage to the items inside the packaging boxes and improving the pressure resistance of the packaging boxes.

[0038] The top of the support plate 3 extends horizontally away from the pillar 2 to form a support platform 9. When the packaging boxes are stacked, the support platform 9 can increase the bearing area above the internal support members of the box, further improving the stability of the stacked packaging boxes.

[0039] The support column 2 protrudes outward from the side near the support plate 3 to form at least one limiting protrusion 6, and the limiting protrusion 6 is arranged along the length direction of the support column. In this embodiment, there are two limiting protrusions 6. When the internal support member of the box is inserted into the corner of the box, the limiting protrusion 6 abuts against the side of the corner of the box, thereby restricting the movement of the side of the corner of the box, making the internal support member of the box and the corner of the box more stable and firm.

[0040] The support column 2 is provided with a first side and a second side, and the first side and the second side are arranged adjacent to each other and connected on the adjacent side; the support plate 3 is located outside the first side and the second side respectively, and the first side and the second side are arranged parallel to the corresponding support plate 3; the limiting protrusion 6 is respectively provided on the first side and the second side.

[0041] The support plate 2 protrudes from the side near the pillar 2 to form at least one downwardly extending limiting protrusion 7.

[0042] When the internal support member of the box is inserted into the corner of the box, the limiting protrusion 7 can pass through the corresponding hole on the side of the corner of the box, which further makes the internal support member of the box and the corner of the box more stable and firm.

[0043] refer to Figure 5 and Figure 6 As shown, in some embodiments, the support plate 3 is provided with a snap fastener 8 on the side away from the pillar 2, and the snap fastener 8 is provided with a through hole 81; the end of the snap fastener 8 connected to the support plate 3 is provided with a folding groove 82, and the snap fastener 8 is folded through the folding groove 82 and fastened to the through hole 81 on the pillar 21.

[0044] This utility model provides an internal support component for a box, which enhances the stability and strength of the overall structure of the packaging box by installing the internal support component at the corner of the box. Furthermore, this internal support component is suitable for boxes of any size and shape. In practical applications, the size of the internal support component can be adjusted to accommodate boxes of different sizes and shapes. Therefore, it can be installed at the corner of a new box during manufacturing, or after modifying an existing box, making it widely applicable and highly practical.

[0045] Example 2

[0046] refer to Figure 3 , Figure 4 as well as Figure 7 As shown, the present invention also provides a packaging box, including a polygonal base plate 901 and a cover plate 12. Each side of the polygonal base plate 901 is provided with a side plate 11 perpendicularly, and a box opening is formed at the end away from the polygonal base plate 901; the cover plate 12 is used to close the box opening.

[0047] Specifically, the polygonal base plate can be, but is not limited to, an equilateral triangular base plate, a rectangular base plate, and a regular hexagonal base plate, thereby forming triangular prism-shaped packaging boxes, square prism-shaped boxes, and hexagonal prism-shaped boxes to meet different packaging box shape requirements. The polygonal base plate, rectangular side plates, and cover plate are all constructed from the same folded cardboard. The packaging box also includes several internal support components as described above. The polygonal base plate 901 and side plates 11 form several box corners, and the internal support components are inserted and disposed at these box corners. In this embodiment, the internal support components are made of plastic.

[0048] Each corner of the polygonal base plate 901 has an opening 13 that matches the shape and size of the support column 2. The internal support member of the box is arranged between any two adjacent side plates, and the support column 2 is fitted onto the corresponding opening 13, so that the adjacent ends of the two side plates are inserted into the insertion slots 4, and the bottom of the side plates and the polygonal base plate abuts against the top surface of the base 1. In this embodiment, the adjacent ends of any two adjacent side plates 11 are respectively installed in the first insertion slot 41 and the second insertion slot 42.

[0049] By fitting the support column 2 into the corresponding opening 13 of the polygonal base plate of the packaging box, the adjacent ends of the two side plates 11 are inserted into the insertion slot 4, thereby realizing the installation of the internal support components of the box inside the packaging box, which can enhance the stability and strength of the overall structure of the packaging box and improve the load-bearing capacity and durability of the packaging box.

[0050] In practical applications, different sizes of internal support components can be selected to match the size of the enclosure. For enclosures of any size and shape, only an opening needs to be made at the corner of the enclosure. The support columns of the corresponding size internal support components can be inserted into the opening, allowing the adjacent ends of two adjacent side panels of the enclosure to be inserted into the insertion slots of the internal support components. This enables the installation of internal support components for enclosures of any size and shape.

[0051] Wherein, when the polygonal base plate is an equilateral triangular base plate, the included angle between the first support plate 301 and the second support plate 302 is 60 degrees; when the polygonal base plate 901 is a rectangular base plate, the included angle between the first support plate 301 and the second support plate 302 is 90 degrees; when the polygonal base plate 901 is a regular hexagonal base plate, the included angle between the first support plate 301 and the second support plate 302 is 120 degrees. In this embodiment, the polygonal base plate 901 is a rectangular side plate.

[0052] Example 3

[0053] refer to Figure 7As shown, the difference between Embodiment 3 and Embodiment 2 is that the cover plate 12 is provided with a first fixing hole 15 corresponding to the column 21. When the cover plate 12 closes the box opening, the column 21 passes through the first fixing hole 15.

[0054] After the cover plate 12 closes the box opening, the cover plate 12 is parallel to the polygonal base plate 901, and the column 21 passes through the corresponding first fixing hole, so as to realize the connection between the cover plate 12 and the internal support of the box, thereby fixing the cover plate to close the box opening and preventing the cover plate 12 from being accidentally loosened, thus realizing the fixed connection between the cover plate 12, the side plate 11, and the polygonal base plate 901 to form a packaging box.

[0055] Example 4.

[0056] refer to Figure 7 As shown, the difference between Embodiment 4 and Embodiment 3 is that each side plate 11 is provided with mounting holes 24 corresponding to the limiting protrusions 7. When the side plate 11 is inserted into the insertion groove 4, the limiting protrusions 7 pass through the mounting holes 24, so that the side plate 11 is firmly connected to the internal support of the box and is more stable in the insertion groove 4.

[0057] Example 5

[0058] refer to Figure 7 As shown, the difference between Embodiment 5 and Embodiment 3 is that at least one side panel 11 has a folding plate on the side away from the polygonal base plate 901, and the folding plate has a second fixing hole and / or a notch respectively; the notch matches the shape and size of the internal support member of the box body, and the folding plates are all folded vertically into the polygonal base plate, so that the column 21 of the corresponding packaging box support member passes through the second fixing hole and / or the corresponding packaging box support member passes through the notch; the cover plate 12 is located above the folding plate.

[0059] Example 6

[0060] refer to Figure 7 As shown, the difference between Embodiment 6 and Embodiment 3 is that at least one side panel 11 has a buckle plate 22 on the side away from the polygonal base plate 901. The buckle plate 22 has two third fixing holes 23. The buckle plate 22 is folded vertically into the polygonal base plate 901, and the third fixing holes 23 are respectively passed through by the columns of the internal support members of the box on both sides of the side panel connected to the buckle plate 22. The buckle plate 22 is located above the cover plate 12.

[0061] By vertically folding the buckle plate 22, the column 21 of the corresponding internal support component of the box passes through the third fixing hole 23, thereby pressing the cover plate 12 and further fixing it, making the cover plate 12 less likely to bulge or open accidentally, effectively improving the overall flatness of the packaging box and the quality of the packaging, and facilitating loading, transportation and storage.

[0062] In some embodiments, after the corresponding column passes through the first fixing hole on the cover plate, the snap fastener 8 is folded through the folding groove 82 and the through hole 82 is fitted and fastened to the column 21, thereby further limiting and fixing the cover plate 12, so as to realize the fixed connection between the cover plate 12, the side plate 11, and the polygonal bottom plate 901 to form a packaging box.

[0063] Example 7

[0064] refer to Figure 3 and Figure 6 As shown, Embodiment 7 provides a packaging box, including a box body and four internal support members as described above; the box body includes a rectangular bottom plate 10, side plates 11, and a cover plate 12. The side plates 11 are rectangular.

[0065] Specifically, the rectangular base plate 10 is provided with four side plates 11 in sequence along the circumference, and the side plates 11 are all perpendicular to the rectangular base plate 10 and form a box opening; one of the side plates 11 is provided with a cover plate 12, and the cover plate 12 is parallel to the rectangular base plate 10; and the cover plate 12 is the same shape and size as the rectangular base plate 10, and is used to close the box opening.

[0066] The rectangular base plate 10 has a first opening 131, a second opening 132, a third opening 133, and a fourth opening 134 at each corner that match the shape and size of the support column; the adjacent rectangular side plates 11 form four box corners with the corresponding first opening 131, second opening 132, third opening 133, or fourth opening 134 at one adjacent end; the internal support members of the box correspond one-to-one with the first opening 131, second opening 132, third opening 133, and fourth opening 134, and are used to be installed at the corresponding box corners.

[0067] In this embodiment, the four rectangular side plates 11 are, in sequence along the circumference of the rectangular base plate 10, the first rectangular side plate 111, the second rectangular side plate 112, the third rectangular side plate 113, and the fourth rectangular side plate 114. The four internal support members of the box body correspond one-to-one with the first opening 131, the second opening 132, the third opening 133, and the fourth opening 134, respectively. A fold line is provided between the first rectangular side plate 111, the second rectangular side plate 112, the third rectangular side plate 113, and the fourth rectangular side plate 114 and the rectangular base plate 10; and a fold line is provided between the first rectangular side plate 111 and the cover plate 12; the four first fixing holes 15 at the four corners of the cover plate 12 correspond one-to-one with the first opening 131, the second opening 132, the third opening 133, and the fourth opening 134.

[0068] The assembly process of the packaging box is as follows: First, the first rectangular side plate 111, the second rectangular side plate 112, the third rectangular side plate 113, and the fourth rectangular side plate 114 are folded vertically inward along the fold line into the rectangular base plate 10 to form the box opening, such that the adjacent ends of any two adjacent rectangular side plates 11 form a box corner with the corresponding first opening 131, second opening 132, third opening 133, or fourth opening 134. Second, the pillars of the first, second, third, and fourth internal support components are respectively installed in the first, second, third, and fourth openings 131, second, third, and fourth openings 134 of the corresponding box corners, so that the adjacent ends of two adjacent rectangular side plates 11 are inserted into the insertion slots of the corresponding internal support components, and the bottom of the adjacent ends of two adjacent rectangular side plates 11 and the bottom of the rectangular base plate 10 abut against the top surface of the base of the corresponding internal support component, thus completing the assembly of the internal support components. Finally, the cover plate 12 is folded vertically inside the rectangular base plate 10 along the fold line to close the box opening and complete the assembly of the packaging box; thereby, the pillars of the first box internal support, the second box internal support, the third box internal support, and the fourth box internal support pass through the corresponding first fixing holes 15 on the cover plate 12 to complete the assembly of the packaging box.

[0069] For example, after the first rectangular side plate 111 and the second rectangular side plate 112 are folded vertically into the rectangular base plate 10, the adjacent ends of the first rectangular side plate 111 and the second rectangular side plate 112 form an angle, and together with the corresponding second opening 132, they form a corner portion of the box. The second opening 132 corresponding to this corner portion is fitted onto the support column of the corresponding internal support member of the second box, so that the adjacent ends of the first rectangular side plate 111 and the second rectangular side plate 112 are inserted into the insertion slot of the internal support member of the second box, and the bottom of the adjacent ends of the first rectangular side plate 111 and the second rectangular side plate 112 and the bottom of the rectangular base plate 10 abut against the top surface of the base of the internal support member of the second box, thus completing the assembly of the internal support member of the second box.

[0070] The first rectangular side plate 111, the second rectangular side plate 112, the third rectangular side plate 113 and the fourth rectangular side plate 114 are provided with a plurality of mounting holes 24 for the limiting protrusions 7 to pass through. When two adjacent rectangular side plates 11 are inserted into the insertion slots 4 of the corresponding internal support members of the box, the limiting protrusions 7 of the internal support members of the box pass through the corresponding mounting holes 24, so that the side plates 11 are more securely inserted into the insertion slots and are not easy to shift.

[0071] Two other rectangular sidewalls adjacent to the rectangular side plate 11 connected to the cover plate 12, away from the rectangular base plate 10, are respectively provided with a first folding plate 16 and a second folding plate 17. The first folding plate 16 is provided with a second fixing 18 corresponding to the second opening 132 and the third opening 133, and a notch A20. Folding lines are respectively provided between the first folding plate 16 and the second folding plate 17 and the rectangular base plate 10. The second folding plate 17 is provided with a second fixing hole B19 corresponding to the first opening 131 and the fourth opening 134, and a notch B21. The first folding plate 16 and the second folding plate 17 are both folded vertically into the rectangular base plate 10 along the folding lines, so that the column of the corresponding packaging box support passes through the second fixing 18 and the second fixing hole B19. In this embodiment, the column of the first packaging box support passes through the second fixing hole A18, and the column of the fourth packaging box support passes through the second fixing hole B19.

[0072] Before the cover plate 12 is vertically folded inside the two-way rectangular base plate 10 along the folding line to close the box opening, the first folding plate 16 and the second folding plate 17 are both vertically folded and fixed inside the three-way rectangular base plate 10 along the folding line. Then, the column of the corresponding packaging box support passes through the second fixing 18 and the second fixing hole B19 to complete the assembly of the packaging box.

[0073] A buckle plate 22 is provided on the side of the rectangular side plate 11 opposite to the rectangular base plate 10, away from the rectangular base plate 10. A fold line 4 is provided between the buckle plate 22 and the rectangular base plate 10. The buckle plate 22 has third fixing holes 23 corresponding to the second opening 132 and the third opening 133, respectively. The buckle plate 22 is folded vertically inward along the fold line 4 into the rectangular base plate 10, allowing the column of the corresponding internal support member to pass through the third fixing hole 23. In this embodiment, the columns 21 of the second and third internal support members pass through the third fixing hole 23.

[0074] The cover plate 12 is equipped with first fixing holes corresponding to the first opening 131, the second opening 132, the third opening 133, and the fourth opening 134. After the first fixing holes of the cover plate 12 are engaged and fixed with the column 21 of the corresponding packaging box support, the buckle plate 22 is folded vertically so that the column 21 of the corresponding internal support of the box passes through the third fixing hole 23, thereby pressing the cover plate 12 and further fixing it to complete the final packaging box assembly.

[0075] In this embodiment, the internal support components of the box are made of plastic, and the packaging box is made of cardboard, which makes the packaging box easy to print promotional patterns, and also has good structural strength, long service life, and good packaging quality.

[0076] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model and do not limit the utility model to the specific implementations described. Obviously, other modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. They are not intended to limit the utility model, and any simple modifications to this utility model fall within the protection scope of this utility model.

Claims

1. An internal support member for a box, used for inserting into a corner of a packaging box, characterized in that, The device includes a base, on which a support column and a support plate are provided. The support plate is located outside the support column, and a slot is formed between the support plate and the support column. The top of the support column has an upwardly protruding column, the upper surface of which is higher than the upper surface of the support plate. The bottom of the base has a slot that can accommodate the column.

2. The internal support component of the box according to claim 1, characterized in that, The support plate has a snap fastener on the side away from the pillar, and the snap fastener has a through hole; the end of the snap fastener that is connected to the support plate has a folding groove, and the snap fastener is folded through the folding groove and fastened to the through hole on the pillar.

3. The internal support component of the box according to claim 1, characterized in that, The support plate includes a first support plate and a second support plate, and the adjacent ends of the first support plate and the second support plate are connected to each other and form an included angle; the connection between the first support plate and the second support plate is connected to the pillar through a partition plate.

4. The internal support component of the box according to claim 1, characterized in that, The support column protrudes outward from the side near the support plate to form at least one limiting protrusion, and the limiting protrusion is arranged along the length direction of the support column.

5. A box-type internal support member according to any one of claims 1-4, characterized in that, The support plate protrudes from the side near the pillar to form at least one downwardly extending limiting protrusion.

6. A packaging box, comprising a polygonal base plate and a cover plate, wherein each side of the polygonal base plate has a side plate vertically disposed thereon, and a box opening is formed at the end away from the polygonal base plate; the cover plate is used to close the box opening; characterized in that, It also includes several internal support components for the housing as described in any one of claims 1-4; Each corner of the polygonal base plate has an opening that matches the shape and size of the support column; the internal support member of the box is arranged between any two adjacent side plates, and the support column is fitted onto the corresponding opening, so that the adjacent ends of the two side plates are inserted into the insertion slot, and the bottom of the side plates and the polygonal base plate abut against the top surface of the base.

7. A packaging box according to claim 6, characterized in that, The cover plate is provided with a first fixing hole corresponding to each of the columns. When the cover plate closes the box opening, the columns pass through the first fixing holes.

8. A packaging box according to claim 6, characterized in that, The support plate protrudes from the side near the pillar to form at least one downwardly extending limiting protrusion. Each side plate is provided with a mounting hole corresponding to the limiting protrusion. When the side plate is inserted into the insertion slot, the limiting protrusion passes through the mounting hole.

9. A packaging box according to claim 6, characterized in that, At least one side panel has a folded plate on the side away from the polygonal base plate, and the folded plate has a second fixing hole and / or a notch respectively; the notch matches the shape and size of the internal support member of the box body, and the folded plates are all folded vertically into the polygonal base plate, so that the column of the corresponding packaging box support member passes through the second fixing hole and / or the corresponding packaging box support member passes through the notch; the cover plate is located above the folded plate.

10. A packaging box according to claim 6, characterized in that, At least one side panel has a buckle plate on the side away from the polygonal base plate. The buckle plate has two third fixing holes. The buckle plate is folded vertically into the polygonal base plate, and the third fixing holes are respectively passed through by the columns of the internal support members of the box on both sides of the side panel connected to the buckle plate. The buckle plate is located above the cover plate.