Packaging box with built-in bearing structure

Abstract

The utility model discloses a packaging box with a built-in bearing structure. The packaging box comprises a packaging box body, the top end of the packaging box body is connected with a packaging box cover, the top end of the packaging box cover is connected with an arc-shaped protection plate, and the arc-shaped protection plate is arranged to be in an arc shape. The packaging box comprises a packaging box body; the packaging box comprises a packaging box body, the top end of the packaging box body is connected with a packaging box cover, the top end of the packaging box cover is connected with an arc-shaped protection plate, the arc-shaped protection plate is arranged to be in an arc shape, two sets of supporting plates are fixed in the packaging box body, and eight sets of elastic supporting columns are fixed between the supporting plates. The space between the elastic supporting columns is filled with foam balls, three sets of sliding grooves are formed in the two ends of the interior of the packaging box body, a partition plate is movably connected to the interior of the packaging box body, sliding blocks are fixed to the two ends of the packaging box body, and the sliding blocks are slidably connected with the sliding grooves.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a packaging box with a built-in load-bearing structure. Background Art

[0002] Packaging boxes, as the name suggests, are boxes used to package products. They can be classified by material, such as: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, PVC boxes, etc., or by product name, such as: mooncake boxes, tea boxes, goji berry boxes, candy boxes, exquisite gift boxes, local specialty product boxes, wine boxes, chocolate boxes, food, medicine and health product boxes, food packaging boxes, tea packaging boxes, stationery boxes, etc.

[0003] The existing packaging boxes have the following shortcomings:

[0004] Firstly, in order to improve the load-bearing capacity and make the box less prone to breakage, existing packaging boxes have cavities and reinforcing ribs inside. Although this increases the strength of the packaging box, most of the packaging boxes are made of cardboard, and opening grooves inside them will actually affect the quality of the packaging box.

[0005] Secondly, the existing packaging boxes do not have the function of adjusting the internal space, making it difficult to adjust the internal space distribution of the packaging box according to the type and quantity of items. The practicality is relatively limited, and there is still room for optimization.

[0006] Therefore, it is necessary to design a packaging box with a built-in load-bearing structure to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a packaging box with a built-in load-bearing structure to solve the problem of insufficient load-bearing structure in the packaging boxes mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a packaging box with a built-in load-bearing structure, comprising a packaging box body; a packaging box lid is connected to the top of the packaging box body, and an arc-shaped protective plate is connected to the top of the packaging box lid, the shape of which is arc-shaped; two sets of support plates are fixed inside the packaging box body, and eight sets of elastic support columns are fixed between the support plates; foam balls are filled between the elastic support columns; three sets of sliding grooves are provided at both ends inside the packaging box body; a partition is movably connected inside the packaging box body, and sliders are fixed at both ends of the partition, the sliders being slidably connected to the sliding grooves; a bearing plate is movably connected at the middle position of the packaging box body, and a limit groove is provided inside the bearing plate; guide blocks are fixed at both ends of the bearing plate, and the guide blocks being slidably connected to the guide grooves; and a fixing mechanism is provided at both ends of the packaging box body.

[0009] Preferably, the fixing mechanism includes a mounting frame fixed to both ends of the packaging box body. The mounting frame is movably connected to a movable rod, and a first spring is wound around the outer side of the movable rod. A pull ring is fixed to the outer side of the movable rod. A fixing plate is fixed to the inner side of each movable rod, and a locking block is fixed to the inner side of each fixing plate. A locking groove is provided inside each guide block, and the locking groove is engaged with the locking block. Anti-slip teeth are provided on the inner side of each fixing plate.

[0010] Preferably, the size of the locking blocks is equal to the size of the locking grooves, and the cross-sectional shape of the two blocks is trapezoidal.

[0011] Preferably, the anti-slip teeth are all triangular in cross-section and are arranged at equal intervals along the inner edge of the fixing plate.

[0012] Preferably, the outer side of the packaging box body is provided with a heat insulation layer, and the outer side of the heat insulation layer is provided with a moisture-proof layer, and the outer side of the moisture-proof layer is provided with a waterproof layer.

[0013] Preferably, the waterproof layer is made of polyurethane waterproof coating, the moisture-proof layer is made of polyethylene film, and the insulation layer is made of polystyrene foam board.

[0014] Preferably, both sides of the inside of the packaging box cover are provided with built-in grooves, and a second buffer block is movably connected inside the built-in groove. The top of the second buffer block is fixed with a first buffer block, and a third spring is wound around the outside of the first buffer block. An installation rod is rotatably connected inside the packaging box cover, and a damping movable sleeve is sleeved on the outside of the installation rod. The second spring is wound around the outside of the installation rod on both sides of the damping movable sleeve. The top of the damping movable sleeve is connected to the arc-shaped protective plate through a connecting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the packaging box with built-in load-bearing structure not only realizes the function of built-in load-bearing structure, but also realizes the function of adjustable spatial distribution;

[0016] By setting two sets of support plates and distributing multiple sets of elastic support columns in the middle, and filling the gaps between the elastic support columns with foam balls, this series of structures can strengthen the bottom of the packaging box body, extend the service life and use value of the packaging box body. At the same time, by setting a buffer structure, the top of the arc-shaped protective plate is set in an arc shape. This shape design can resist the impact force from the outside. When the impact force touches the arc-shaped protective plate, the arc-shaped protective plate can drive the connecting rod and the damping movable sleeve to move outside the second spring. With the cooperation of the second spring, it can play the role of initial buffer mechanism. At the same time, it drives the first buffer block to move inside the second buffer block. With the cooperation of the third spring, the arc-shaped protective plate can be further buffered to further protect the packaging box body.

[0017] By cooperating with the slider and the slide, the spacing between the partitions can be adjusted according to the type and quantity of items, further enhancing the practicality and flexibility of the packaging box. At the same time, the limiting groove allows valuable or displayable items to be placed inside for focused protection and display. The guide groove and guide block guide the support plate, and the fixing mechanism further fixes the guide block to prevent it from shaking inside the packaging box. Furthermore, the waterproof, moisture-proof, and heat-insulating layers further improve the performance of the packaging box material. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a frontal view of the internal three-dimensional structure of the packaging box body of this utility model;

[0021] Figure 3 This is a side view of the internal three-dimensional structure of the packaging box body of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0023] Figure 5 This is a three-dimensional structural diagram of the material combination of this utility model;

[0024] Figure 6 This is a schematic diagram of the combined buffer structure of this utility model.

[0025] The following are the annotations in the diagram: 1. Arc-shaped protective plate; 2. Packaging box lid; 3. Packaging box body; 4. Guide groove; 5. Slide groove; 6. Partition; 7. Bearing plate; 8. Guide block; 9. Limiting groove; 10. Foam ball; 11. Support plate; 12. Elastic support column; 13. Fixing mechanism; 1301. Mounting bracket; 1302. Moisture-proof rod; 1303. Pull ring; 1304. First spring; 1305. Fixing plate; 1306. Anti-slip teeth; 1307. Locking block; 1308. Locking groove; 14. Waterproof layer; 15. Moisture-proof layer; 16. Insulation layer; 17. Connecting rod; 18. Damping movable sleeve; 19. First buffer block; 20. Internal groove; 21. Second buffer block; 22. Second spring; 23. Third spring; 24. Mounting rod. DETAILED DESCRIPTION

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figures 1-6 The present invention provides the following technical solution:

[0028] Example 1

[0029] To address the shortcomings of existing packaging boxes in terms of load-bearing structure, the following solution is disclosed, specifically as follows: Figure 1 , Figure 2 and Figure 6As shown, the package includes a packaging box body 3; a packaging box lid 2 is connected to the top of the packaging box body 3, and an arc-shaped protective plate 1 is connected to the top of the packaging box lid 2. The packaging box body 3 has two sets of support plates 11 fixed inside, and eight sets of elastic support columns 12 are fixed between each support plate 11. Foam balls 10 are filled between the elastic support columns 12. Three sets of sliding grooves 5 are provided at both ends inside the packaging box body 3. A partition 6 is movably connected inside the packaging box body 3, and sliders are fixed at both ends of the partition 6. The sliders are slidably connected to the sliding grooves 5. A bearing plate 7 is movably connected at the middle position of the packaging box body 3, and a limit groove 9 is provided inside the bearing plate 7. Guide blocks 8 are fixed at both ends of the carrier plate 7, and the guide blocks 8 are slidably connected to the guide groove 4. Fixing mechanisms 13 are provided at both ends of the packaging box body 3. Built-in grooves 20 are provided on both sides inside the packaging box cover 2, and a second buffer block 21 is movably connected inside the built-in groove 20. A first buffer block 19 is fixed at the top of the second buffer block 21, and a third spring 23 is wound around the outside of the first buffer block 19. An installation rod 24 is rotatably connected inside the packaging box cover 2, and a damping movable sleeve 18 is sleeved on the outside of the installation rod 24. A second spring 22 is wound around the outside of the installation rod 24 on both sides of the damping movable sleeve 18. The top of the damping movable sleeve 18 is connected to the arc-shaped protective plate 1 through a connecting rod 17.

[0030] In this embodiment, during use, two sets of support plates 11 are set, and multiple sets of elastic support columns 12 are distributed in the middle position. Foam balls 10 are filled in the gaps between the elastic support columns 12. This series of structures can strengthen the strength of the bottom of the packaging box body 3, extend the service life and use value of the packaging box body 3, and at the same time, by setting a buffer mechanism, the impact force of the outside is buffered during use. Meanwhile, the top of the arc-shaped protective plate 1 is designed to be curved, which can prevent damage to the packaging box body 3.

[0031] Example 2

[0032] This embodiment differs from Embodiment 1 in that the guide block 8 can be limited and fixed by the fixing mechanism 13, as detailed below. Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fixing mechanism 13 includes a mounting bracket 1301, which is fixed to both ends of the packaging box body 3. A movable rod 1302 is movably connected inside the mounting bracket 1301, and a first spring 1304 is wound around the outer side of the movable rod 1302. A pull ring 1303 is fixed to the outer side of the movable rod 1302. A fixing plate 1305 is fixed to the inner side of each movable rod 1302, and a locking block 1307 is fixed to the inner side of each fixing plate 1305. A locking groove 1308 is provided inside each guide block 8, and the locking groove 1308 engages with the locking block 1307. The inner side of the fixing plate 1305... All are equipped with anti-slip teeth 1306, and the size of the locking blocks 1307 is equal to that of the locking grooves 1308. The cross-sectional shape of both is trapezoidal. The cross-section of the anti-slip teeth 1306 is triangular. They are evenly distributed along the inner edge of the fixing plate 1305. The outer side of the packaging box body 3 is provided with a heat insulation layer 16, and the outer side of the heat insulation layer 16 is provided with a moisture-proof layer 15. The outer side of the moisture-proof layer 15 is provided with a waterproof layer 14. The waterproof layer 14 is made of polyurethane waterproof coating, the moisture-proof layer 15 is made of polyethylene film, and the heat insulation layer 16 is made of polystyrene foam board.

[0033] In this embodiment, when it is necessary to adjust the internal space distribution of the packaging box body 3 during use, the spacing between the partitions 6 can be adjusted according to the type and quantity of the items by the cooperation of the slider and the slide groove 5. When the bearing plate 7 is in the right position, the locking block 1307 can be inserted into the locking groove 1308 by pulling the pull ring 1303 and under the elastic action of the first spring 1304, thereby achieving the effect of limiting and fixing the bearing plate 7. At the same time, the performance of the material of the packaging box body 3 is further improved by setting the waterproof layer 14, the moisture-proof layer 15 and the heat insulation layer 16.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging box with a built-in load-bearing structure, comprising a packaging box body (3); characterized in that: The top of the packaging box body (3) is connected to a packaging box lid (2), and the top of the packaging box lid (2) is connected to an arc-shaped protective plate (1), which is arc-shaped. The packaging box body (3) is fixed with two sets of support plates (11). There are eight sets of elastic support columns (12) fixed between the support plates (11). The elastic support columns (12) are filled with foam balls (10). The two ends of the packaging box body (3) are provided with sliding grooves (5). There are three sets. The packaging box body (3) is movably connected to the interior of the partition plate (6), and the two ends of the partition plate are fixed with sliders. The sliders are slidably connected to the slide groove (5). The middle position of the packaging box body (3) is movably connected to the support plate (7), and the support plate (7) is provided with a limit groove (9). The two ends of the support plate (7) are fixed with guide blocks (8), and the guide blocks (8) are slidably connected to the guide groove (4). The two ends of the packaging box body (3) are provided with a fixing mechanism (13).

2. The packaging box with a built-in load-bearing structure according to claim 1, characterized in that: The fixing mechanism (13) includes a mounting bracket (1301), a movable rod (1302) is movably connected inside the mounting bracket (1301), and a first spring (1304) is wound around the outside of the movable rod (1302). A pull ring (1303) is fixed to the outside of the movable rod (1302). A fixing plate (1305) is fixed to the inside of the movable rod (1302), and a locking block (1307) is fixed to the inside of the fixing plate (1305). A locking groove (1308) is provided inside the guide block (8), and the locking groove (1308) is engaged with the locking block (1307). Anti-slip teeth (1306) are provided on the inside of the fixing plate (1305).

3. A packaging box with a built-in load-bearing structure according to claim 2, characterized in that: The size of each locking block (1307) is equal to the size of the locking groove (1308), and their cross-sectional shape is trapezoidal.

4. A packaging box with a built-in load-bearing structure according to claim 2, characterized in that: The anti-slip teeth (1306) are all triangular in cross-section and are arranged at equal intervals along the inner edge of the fixing plate (1305).

5. A packaging box with a built-in load-bearing structure according to claim 1, characterized in that: The outer side of the packaging box body (3) is provided with a heat insulation layer (16), and the outer side of the heat insulation layer (16) is provided with a moisture-proof layer (15), and the outer side of the moisture-proof layer (15) is provided with a waterproof layer (14).

6. A packaging box with a built-in load-bearing structure according to claim 5, characterized in that: The waterproof layer (14) is made of polyurethane waterproof coating, the moisture-proof layer (15) is made of polyethylene film, and the insulation layer (16) is made of polystyrene foam board.

7. A packaging box with a built-in load-bearing structure according to claim 1, characterized in that: The packaging box cover (2) has built-in grooves (20) on both sides inside, and a second buffer block (21) is movably connected inside the built-in groove (20). A first buffer block (19) is fixed at the top of the second buffer block (21), and a third spring (23) is wound around the outside of the first buffer block (19). An installation rod (24) is rotatably connected inside the packaging box cover (2), and a damping movable sleeve (18) is sleeved on the outside of the installation rod (24). A second spring (22) is wound around the outside of the installation rod (24) on both sides of the damping movable sleeve (18). The top of the damping movable sleeve (18) is connected to the arc-shaped protective plate (1) through a connecting rod (17).

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