Corner reinforced stackable food carton

Abstract

The utility model relates to food paper box technical field provides a corner reinforcing stacking-resistant food paper box, including two main paperboards, both sides of main paperboard all rotatoryly connected with side paperboard, two sides of main paperboard all rotatoryly connected with sealing plate, the bottom rotatoryly connected with the bottom plate of side paperboard, be equipped with two embedding slot on the bottom plate, the inside of embedding slot is provided with the corner fixed component, the outer surface of main paperboard is provided with the apex fixed component. The utility model discloses, and the device is provided with the corner apex reinforcing structure, can evenly disperse perpendicular pressure to paper box side and bottom, avoids the collapse, cracking of corner because of the excessive stress, and the paper box corner is easy to collide with goods shelf, ground or other articles when carrying, can buffer impact force, reduces the damage of box body, and after reinforcing, can maintain the square of box body, and the visual effect is improved when the product is displayed.

Description

Technical Field

[0001] This utility model relates to the field of food paper box technology, and in particular to a corner-reinforced, stackable food paper box. Background Technology

[0002] Reinforced corner food cartons are functional cartons specifically designed for food packaging. Their core functions revolve around protecting food, improving storage and transportation efficiency, and ensuring packaging stability. The four corners of the cartons are structurally weak points, easily deformed or damaged during stacking and handling. By thickening the corner material (such as using double-layer cardboard or rigid cardboard), adding reinforcing ribs, or employing special folding techniques, the cartons' resistance to compression and impact can be significantly improved. This prevents food exposure, contamination, or spoilage due to corner damage. Whether it's solid, semi-solid, or fragile food, reinforced cartons reduce shaking and compression during transportation, lowering the risk of food breakage, deformation, or leakage.

[0003] However, existing technologies, such as Chinese Publication No. CN110817035A, "A Paper Box," disclose a paper box that relates to the field of packaging box technology. This paper box includes an outer box and an inner box. The inner wall of the outer box has a first abutment portion. The inner box is slidably installed inside the outer box through an opening in the outer box using a push-pull method. The outer wall of the inner box has an elastic protrusion portion. The elastic protrusion portion can abut against the first abutment portion in the pulling direction, thereby locking the inner box and outer box in a locked state, achieving self-locking of the paper box. Because the elastic protrusion portion is an elastically deformable structure, when the inner box is placed into the outer box, the elastic protrusion portion automatically abuts against the first abutment portion, securing the inner box within the outer box. When the elastic protrusion portion is pressed, it can disengage from the first abutment portion, thereby unlocking the inner box and outer box, achieving unlocking of the paper box. In addition, since the cardboard box is made entirely of paper, it is easier to recycle and more environmentally friendly compared to boxes made of materials such as hardware and plastic. It also reduces manufacturing and assembly costs and improves production efficiency.

[0004] However, this device does not have a corner reinforcement structure, so it cannot evenly distribute the vertical pressure to the sides and bottom of the cardboard box. This causes the corners to collapse and crack due to excessive force. During handling, the corners of the cardboard box are prone to collisions with shelves, the ground or other items. It cannot buffer the impact force and increases the damage to the box. The unreinforced corners are prone to wrinkles and damage due to collisions, which affects the appearance of the packaging. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art, such as the inability to evenly distribute vertical pressure to the sides and bottom of the cardboard box, which leads to the corners collapsing and cracking due to excessive force, the corners of the cardboard box easily colliding with shelves, the ground or other items during handling, failing to buffer the impact force, increasing the damage to the box body, and the unreinforced corners being prone to wrinkles and damage due to collisions, affecting the aesthetics of the packaging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corner-reinforced, stackable food paper box, comprising two main paperboards, side paperboards rotatably connected to both sides of the main paperboards, sealing plates rotatably connected to the other two sides of the main paperboards, and a bottom plate rotatably connected to the bottom of the side paperboards, wherein two grooves are provided on the bottom plate.

[0007] The groove is provided with a corner fixing component;

[0008] The outer surface of the main cardboard is provided with a vertex fixing component.

[0009] The technical effect of adopting the above-mentioned further solution is that the two ends of the unfolded main cardboard and side cardboard are fixedly connected, and then they are initially fixed into a cube shape by folding.

[0010] In a preferred embodiment, the corner fixing assembly includes a panel, the bottom of which is movably embedded in the interior of a groove, and a connecting rod is fixedly connected to the inner sides of the two panels.

[0011] The technical effect of adopting the above-mentioned further solution is that the panel is embedded into the groove in the base plate.

[0012] In a preferred embodiment, the outer surface of the connecting rod is rotatably connected to two rod sleeves, and the top of the two rod sleeves is fixedly connected to a side plate.

[0013] The technical effect of adopting the above-mentioned further solution is that the rod can rotate on the outer surface of the connecting rod by means of the side plate.

[0014] In a preferred embodiment, positioning blocks are fixedly connected to both sides of the side plate, and a positioning groove is provided on one side of the panel, with the outer surface of the positioning block movably embedded in the positioning groove.

[0015] The technical effect of adopting the above-mentioned further solution is that the positioning blocks on both sides of the side panel are embedded in the positioning groove to fix the edge of the cardboard box. The side panel can be rotated on the connecting rod to make the installation and disassembly of the panel easier. After the positioning blocks are embedded in the positioning groove, a connecting force can also be generated above the panel, making the connection more stable.

[0016] In a preferred embodiment, the vertex fixing assembly includes external holes. Multiple external holes are provided on the outer sides of the main cardboard, side cardboard, and sealing plate. External blocks are movably embedded inside the external holes, and one end of each of the external blocks is fixedly connected to a vertex protective shell.

[0017] The technical effect of adopting the above-mentioned further solution is that, through the vertex protective shell, the three external blocks are embedded inside the external holes to complete the fixation of the cardboard box edges.

[0018] In a preferred embodiment, the main paperboard, side paperboard, sealing plate, and bottom plate are made of corrugated paperboard, which is a three-layer composite, and the corrugated core paper is wavy.

[0019] The technical effect of adopting the above-mentioned further solution is that the cardboard box is lightweight, strong, and has good cushioning properties.

[0020] In a preferred embodiment, the connecting rod, rod sleeve, and side plate are made of polypropylene.

[0021] The technical effect of adopting the above-mentioned further solution is that the device can increase the stability of the edges without significantly increasing the cost and weight of the cardboard box.

[0022] In a preferred embodiment, the outer block and the vertex protective shell are made of polyethylene.

[0023] The technical effect of adopting the above-mentioned further solution is that the vertex protective shell has a certain elastic deformation capability, and after the expansion, the external blocks can be embedded into the external holes respectively to complete the final fixation of the cardboard box corners.

[0024] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0025] This utility model features a corner reinforcement structure that can evenly distribute vertical pressure to the sides and bottom of the cardboard box, preventing the corners from collapsing or cracking due to excessive force. During handling, the corners of the cardboard box are prone to collisions with shelves, the ground, or other items. This device can buffer the impact force, reduce box damage, and maintain the box's square and sturdy shape after reinforcement, thus improving the visual effect when displaying products. Attached Figure Description

[0026] Figure 1 A three-dimensional structural diagram of a corner-reinforced, stackable food paper box provided by this utility model;

[0027] Figure 2 A schematic diagram of the disassembly structure of a corner-reinforced, stackable food carton provided by this utility model;

[0028] Figure 3 A cross-sectional structural diagram of a corner-reinforced, stackable food carton provided by this utility model;

[0029] Figure 4 A schematic diagram of the disassembly structure of a corner-reinforced, stackable food carton provided by this utility model;

[0030] Figure 5 A schematic diagram of the unfolded structure of a corner-reinforced, stackable food carton provided by this utility model;

[0031] Figure 6 This is a schematic diagram of the disassembly structure of a corner-reinforced, stackable food carton provided by this utility model.

[0032] Legend:

[0033] 1. Main cardboard; 2. Side cardboard; 3. Sealing plate; 4. Base plate; 5. Insert groove; 6. Panel; 7. Connecting rod; 8. Rod sleeve; 9. Side plate; 10. Positioning block; 11. Positioning groove; 12. External connection hole; 13. External connection block; 14. Top protective shell. Detailed Implementation

[0034] 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 protection scope of the present utility model.

[0035] Example 1, please refer to Figures 1 to 6 The present invention provides a technical solution: the corner fixing component includes a panel 6, the bottom of the panel 6 is movably embedded in the groove 5, the inner sides of the two panels 6 are fixedly connected to a connecting rod 7, the outer surface of the connecting rod 7 is rotatably connected to two rod sleeves 8, the top of the two rod sleeves 8 is fixedly connected to a side plate 9, both sides of the side plate 9 are fixedly connected to a positioning block 10, a positioning groove 11 is opened on one side of the panel 6, and the outer surface of the positioning block 10 is movably embedded in the positioning groove 11.

[0036] In this embodiment, the bottom plate 4 is folded over, and the insert 6 is embedded into the groove 5 in the bottom plate 4. Then, the rod sleeve 8 is rotated on the outer surface of the connecting rod 7 through the side plate 9, and the positioning blocks 10 on both sides of the side plate 9 are embedded into the positioning grooves 11 to complete the fixation of the edge of the carton. The side plate 9 can rotate on the connecting rod 7 to make the installation and removal of the insert 6 easier. After the positioning blocks 10 are embedded into the positioning grooves 11, a connecting force is also generated above the insert 6 to make the connection more stable. Then, the sealing plate 3 is folded over and the carton is further fixed by tape.

[0037] Example 2, please refer to Figures 1 to 6 The vertex fixing component includes external holes 12. Multiple external holes 12 are opened on the outer side of the main cardboard 1, side cardboard 2, and sealing plate 3. External blocks 13 are movably embedded inside the external holes 12. One end of the multiple external blocks 13 is fixedly connected to the vertex protective shell 14.

[0038] In this embodiment, the three external blocks 13 are fixed by embedding them into the external holes 12 through the vertex protective shell 14.

[0039] Working principle: First, the unfolded main cardboard 1 and side cardboard 2 are fixedly connected at both ends. Then, they are initially fixed into a cube shape by folding. Next, the bottom plate 4 is folded over, and the insert 6 is embedded into the groove 5 in the bottom plate 4. Then, the rod sleeve 8 is rotated on the outer surface of the connecting rod 7 through the side plate 9, so that the positioning blocks 10 on both sides of the side plate 9 are embedded into the positioning grooves 11, completing the fixation of the edges of the cardboard box. The side plate 9 can rotate on the connecting rod 7 to make the installation and removal of the insert 6 easier. After the positioning blocks 10 are embedded into the positioning grooves 11, a connecting force is also generated on the top of the insert 6, making the connection more stable. Then, the sealing plate 3 is folded over, and the cardboard box is further fixed by tape. Finally, the top protective shell 14 is used to secure the three... The outer block 13 is embedded inside the outer hole 12 to fix the corners of the cardboard box. Because the outer block 13 and the apex protective shell 14 are made of polyethylene, the apex protective shell 14 has a certain elastic deformation capability. After the outer block 13 is embedded and expanded, it is respectively embedded into the outer hole 12 to complete the final fixation of the corners of the cardboard box. The main cardboard 1, side cardboard 2, sealing plate 3, and bottom plate 4 are made of corrugated cardboard, which is composed of three layers. The corrugated core paper is wavy, which makes the cardboard box lightweight, strong, and has good cushioning. The connecting rod 7, rod sleeve 8, and side plate 9 are made of polypropylene, which allows the device to increase the stability of the edges without increasing the cost and weight of the cardboard box.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A corner-reinforced, stackable food carton, comprising two main cardboard boxes (1), characterized in that, The main paperboard (1) is rotatably connected to side paperboards (2) on both sides, and the other two sides of the main paperboard (1) are rotatably connected to sealing plates (3). The bottom of the side paperboards (2) is rotatably connected to a bottom plate (4), and two grooves (5) are opened on the bottom plate (4). The groove (5) is provided with a corner fixing component inside; The outer surface of the main cardboard (1) is provided with a vertex fixing component.

2. The corner-reinforced, stackable food carton according to claim 1, characterized in that: The corner fixing assembly includes a panel (6), the bottom of which is movably embedded in the groove (5), and a connecting rod (7) is fixedly connected to the inner side of the two panels (6).

3. The corner-reinforced, stackable food carton according to claim 2, characterized in that: The outer surface of the connecting rod (7) is rotatably connected to two rod sleeves (8), and the top of the two rod sleeves (8) is fixedly connected to a side plate (9).

4. The corner-reinforced, stackable food carton according to claim 3, characterized in that: Both sides of the side plate (9) are fixedly connected with positioning blocks (10), and a positioning groove (11) is opened on one side of the insert plate (6). The outer surface of the positioning block (10) is movably embedded in the inside of the positioning groove (11).

5. The corner-reinforced, stackable food carton according to claim 1, characterized in that: The vertex fixing assembly includes an external hole (12). Multiple external holes (12) are opened on the outer sides of the main cardboard (1), side cardboard (2), and sealing plate (3). An external block (13) is movably embedded inside the external hole (12). One end of the multiple external blocks (13) is fixedly connected to a vertex protective shell (14).

6. The corner-reinforced, stackable food carton according to claim 1, characterized in that: The main cardboard (1), side cardboard (2), sealing plate (3), and bottom plate (4) are made of corrugated cardboard, which is composed of three layers, and the corrugated core paper is wavy.

7. The corner-reinforced, stackable food carton according to claim 2, characterized in that: The connecting rod (7), the sleeve (8), and the side plate (9) are made of polypropylene.

8. The corner-reinforced, stackable food carton according to claim 5, characterized in that: The outer block (13) and the vertex protective shell (14) are made of polyethylene.

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