Carton with embedded limiting structure

By setting reinforced cardboard and corner pads at the corners and edges of the carton, and combining rubber sheets and plastic frame structures, the problem of easy deformation of the carton corners is solved, and the high-strength, compression resistance and stable transportation of the carton are achieved, and breathable adjustment function is also provided.

CN223253595UActive Publication Date: 2025-08-22DONGGUAN ZHIMEI GREEN PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202422788758.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-08-22
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

The corner positions of existing cartons are prone to deformation during handling and stacking, and the compressive resistance is insufficient.

Method used

Reinforcement cardboard and corner pads are provided at the corners and edges of the carton, combining rubber sheets and plastic frame structures to achieve reinforcement and limiting of the carton, enhance compressive resistance, and control breathability through an adjustable sealing plate.

Benefits of technology

It improves the overall strength and compressive resistance of the carton, prevents the box cover from being offset, ensures stability during transportation, and controls internal breathability as needed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carton with an embedded limit structure, which comprises a carton body, the top end of the carton body is movably connected with a carton cover, and the inside and the outside of the carton body are respectively and fixedly connected with a group of second waterproof films. According to the carton with the embedded limiting structure, the first reinforcing paperboard is arranged, the third corner pads are adhered to the four corners of the outer portion of the carton body through liquid glue, the third reinforcing paperboard is adhered to the edge position, the whole carton body can be effectively reinforced and supported, the second corner pads are adhered to the four corners of the inner portion of the carton body, and therefore the whole carton body can be effectively reinforced and supported. Second reinforcing paperboards are adhered to the inner edges to reinforce the carton body, the first corner pads adhered to the four corners of the carton cover and the first reinforcing paperboards adhered to the edges can improve the overall strength of the carton cover, and the inner reinforcing paperboards and the outer reinforcing paperboards can reinforce the four edges of the carton body. The problem that the corner position is insufficient in anti-pressure capacity is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cartons, in particular to a cartons with an embedded limiting structure. Background Art

[0002] A carton is a box made of solid cardboard or corrugated cardboard and other paper materials through cutting, folding and other steps. It has the characteristics of light weight, high plasticity, and can be recycled. It can also be easily folded after use to save storage space. It plays an important role in current industrial processing, product packaging and other fields.

[0003] However, the cartons currently used for product packaging still have some defects in use. The corners of the cartons are generally subject to greater pressure during transportation and stacking, resulting in deformation of the corners, which affects the overall use of the cartons.

[0004] Now a new type of carton with an embedded limiting structure is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a carton with an embedded limiting structure to solve the problem of insufficient compressive strength of corners in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a carton with an embedded limiting structure, comprising a carton body, a box cover movably connected to the top of the carton body, a set of second waterproof membranes fixedly connected to the inside and outside of the carton body, a set of first waterproof membranes fixedly connected to the inside and outside of the box cover, a set of second seals fixedly connected to both sides and ends of the bottom of the box cover, and a set of first seals fixedly connected to both sides and ends of the top of the carton body;

[0007] A group of second corner pads are respectively fixedly connected to the four corners of the bottom end of the carton body, a second reinforcing cardboard is fixedly connected to the inside of the carton body, a group of inner reinforcing cardboard is respectively fixedly connected on both sides and both ends of the inside of the carton body, a group of third corner pads are respectively fixedly connected to the four corners of the bottom end of the outside of the carton body, a third reinforcing cardboard is fixedly connected to the outside of the carton body, the third reinforcing cardboard is fixedly connected to the third corner pads, a group of outer reinforcing cardboard is respectively fixedly connected on both sides and both ends of the outside of the carton body, the outer reinforcing cardboard is fixedly connected to the third reinforcing cardboard, a group of first corner pads are respectively fixedly connected to the four corners of the top end of the outside of the box lid, the first reinforcing cardboard is fixedly connected to the outside of the box lid, and the first reinforcing cardboard is fixedly connected to the first corner pad.

[0008] Preferably, the second reinforcing cardboard is fixedly connected to the second corner pad, and the inner reinforcing cardboard is fixedly connected to the second reinforcing cardboard.

[0009] Preferably, the center line of the inner reinforcing paperboard is in the same vertical plane as the center line of the carton body, and the center line of the outer reinforcing paperboard is in the same vertical plane as the center line of the carton body.

[0010] Preferably, the bottom end of the box cover is fixedly connected to an adhesive layer, the bottom end of the adhesive layer is fixedly connected to an embedded cardboard, and the outside of the embedded cardboard is fixedly connected to a rubber sheet.

[0011] Preferably, the center line of the embedded cardboard and the center line of the box cover are on the same vertical plane, and the rubber sheet is movably connected to the carton body.

[0012] Preferably, a group of through slots are respectively opened on both sides of the carton body, a plastic frame is fixedly connected to the inside of the through slot, a rubber pad is fixedly connected to the top of the inside of the plastic frame, a group of positioning frames are respectively fixedly connected to both sides of the plastic frame, the positioning frames are movably connected to the carton body, a group of side panels are respectively fixedly connected to the two ends of one side of the positioning frame, a baffle is fixedly connected to one side of one end of the side panel, a sealing plate is movably connected to one side of the positioning frame, and a pull plate is fixedly connected to the top of the sealing plate.

[0013] Preferably, the sealing plate is slidably connected to the baffle, and the sealing plate is movably connected to the side plate.

[0014] Preferably, the through groove is communicated with the interior of the carton body, and the center line of the sealing plate and the center line of the plastic frame are on the same vertical plane.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the carton with the embedded limiting structure can not only improve the pressure resistance of the corners, effectively limit the box cover to prevent it from shifting, but also control the internal ventilation when needed;

[0016] (1) By providing a first reinforcing cardboard, a first corner pad, a second corner pad, a second reinforcing cardboard, an inner reinforcing cardboard, a third reinforcing cardboard, a third corner pad and an outer reinforcing cardboard, the third corner pads are bonded to the four corners of the outside of the carton body by liquid glue, the third reinforcing cardboard is bonded to the edge position, and the third reinforcing cardboard and the third corner pad are an integrated structure, which can effectively reinforce and support the entire carton body, the second corner pads are bonded to the four corners inside the carton body, the second reinforcing cardboard is bonded to the edge position inside, and the second reinforcing cardboard and the second corner pad are an integrated structure, which can also reinforce the carton body, and similarly, the first corner pads bonded to the four corners of the box cover and the first reinforcing cardboard bonded to the edge position can improve the overall strength of the box cover, the inner reinforcing cardboard and the outer reinforcing cardboard can reinforce the four sides of the carton body, further improving the strength of the carton, thereby effectively improving the strength of the carton to improve the pressure resistance;

[0017] (2) A box cover, a rubber sheet, an embedded cardboard and an adhesive layer are provided, and the bottom end of the box cover is connected to a group of embedded cardboards through the adhesive layer. In this way, after the box cover is placed on the top of the carton body, the embedded cardboard at the bottom end of the box cover will be embedded in the interior of the carton body, thereby limiting the box cover and preventing the box cover from shifting during movement and transportation. In addition, a rubber sheet is fixed to the outside of the embedded cardboard, and the rubber sheet will adhere to the inner wall of the carton body to increase friction, further improving the stability of the box cover and preventing it from falling, thereby achieving effective positioning of the box cover;

[0018] (3) Through the provision of a plastic frame, a positioning frame, a baffle, a side panel, a through groove, a rubber pad, a sealing plate and a pull plate, through grooves are opened on both sides of the carton body, and a plastic frame is embedded inside the through grooves. The positioning frames on both sides of the plastic frame are attached to the box wall of the carton body to effectively position the plastic frame. When in use, the carton can be conveniently lifted by the plastic frame. The rubber pad inside the plastic frame can prevent cuts. During transportation, the pull plate can be pulled to lower the sealing plate and block it on one side of the plastic frame to prevent internal materials from leaking. When ventilation is required, the pull plate can be pulled to raise the sealing plate. The baffle at one end of the side panel is attached to one side of the sealing plate, which can not only limit it, but also position the sealing plate by increasing friction. After the sealing plate is raised, the inside of the plastic frame is opened to keep the inside of the carton body breathable, thereby realizing that internal ventilation can be controlled according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the carton body of the present invention;

[0021] Figure 3 This is a side structural diagram of the positioning frame of the present utility model;

[0022] Figure 4 For the utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] In the figure: 1. Carton body; 2. Carton lid; 3. Rubber sheet; 4. Embedded cardboard; 5. Adhesive layer; 6. First waterproof membrane; 7. First reinforcing cardboard; 8. First corner pad; 9. First seal; 10. Second seal; 11. Second corner pad; 12. Second reinforcing cardboard; 13. Inner reinforcing cardboard; 14. Third reinforcing cardboard; 15. Third corner pad; 16. Second waterproof membrane; 17. Plastic frame; 18. Outer reinforcing cardboard; 19. Positioning frame; 20. Baffle; 21. Side panel; 22. Through groove; 23. Rubber pad; 24. Sealing plate; 25. Pull plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 A carton with an embedded limiting structure includes a carton body 1, a box cover 2 is movably connected to the top of the carton body 1, a group of second waterproof membranes 16 are fixedly connected to the inside and outside of the carton body 1, a group of first waterproof membranes 6 are fixedly connected to the inside and outside of the box cover 2, a group of second seals 10 are fixedly connected to both sides and ends of the bottom of the box cover 2, and a group of first seals 9 are fixedly connected to both sides and ends of the top of the carton body 1;

[0026] A group of second corner pads 11 are fixedly connected to the four corners of the bottom end of the carton body 1, a second reinforcing cardboard 12 is fixedly connected to the inside of the carton body 1, a group of inner reinforcing cardboard 13 is fixedly connected to the two sides and ends of the inside of the carton body 1, a group of third corner pads 15 are fixedly connected to the four corners of the bottom end of the outside of the carton body 1, a third reinforcing cardboard 14 is fixedly connected to the outside of the carton body 1, and the third reinforcing cardboard 14 is fixedly connected to the third corner pad 15. A group of outer reinforcing cardboard 18 is fixedly connected to the two sides and two ends of the outside of the carton body 1, and the outer reinforcing cardboard 18 is fixedly connected to the third reinforcing cardboard 14. A group of first corner pads 8 are fixedly connected to the four corners of the top end of the outer cover 2, a first reinforcing cardboard 7 is fixedly connected to the outside of the box cover 2, and the first reinforcing cardboard 7 is fixedly connected to the first corner pad 8;

[0027] The second reinforcing cardboard 12 is fixedly connected to the second corner pad 11, and the inner reinforcing cardboard 13 is fixedly connected to the second reinforcing cardboard 12;

[0028] The center line of the inner reinforcing paperboard 13 is in the same vertical plane as the center line of the carton body 1, and the center line of the outer reinforcing paperboard 18 is in the same vertical plane as the center line of the carton body 1;

[0029] Specifically, if Figure 1 and Figure 2 As shown, the four corners of the outside of the carton body 1 are glued with a third corner pad 15 by liquid glue, and the edge position is glued with a third reinforcing cardboard 14, and the third reinforcing cardboard 14 and the third corner pad 15 are an integrated structure, which can effectively reinforce and support the entire carton body 1, and the four corners inside the carton body 1 are glued with a second corner pad 11, and the internal edge position is glued with a second reinforcing cardboard 12, and the second reinforcing cardboard 12 and the second corner pad 11 are an integrated structure, which can also reinforce the carton body 1, and similarly, the first corner pads 8 glued to the four corners of the box cover 2 and the first reinforcing cardboard 7 glued to the edge position can improve the overall strength of the box cover 2, the inner reinforcing cardboard 13 and the outer reinforcing cardboard 18 can reinforce the four sides of the carton body 1, further improve the strength of the carton, and effectively improve the strength of the carton to improve the pressure resistance.

[0030] Example 2: The bottom end of the box cover 2 is fixedly connected to an adhesive layer 5, the bottom end of the adhesive layer 5 is fixedly connected to an embedded cardboard 4, and the outside of the embedded cardboard 4 is fixedly connected to a rubber sheet 3;

[0031] The center line of the embedded cardboard 4 and the center line of the box cover 2 are in the same vertical plane, and the rubber sheet 3 is movably connected to the carton body 1;

[0032] Specifically, if Figure 1 As shown, the bottom end of the carton lid 2 is connected to a group of embedded cardboards 4 through an adhesive layer 5, so that after the lid 2 is covered on the top of the carton body 1, the embedded cardboards 4 at the bottom end of the lid 2 will be embedded in the interior of the carton body 1, thereby limiting the position of the lid 2 to prevent the lid 2 from shifting during movement and transportation, and a rubber sheet 3 is fixed to the outside of the embedded cardboard 4, which will fit against the inner wall of the carton body 1 to increase friction, further improve the stability of the lid 2 to prevent it from falling, and effectively limit the lid 2.

[0033] Example 3: A group of through slots 22 are respectively opened on both sides of the carton body 1, and a plastic frame 17 is fixedly connected to the inside of the through slot 22. The top of the plastic frame 17 is fixedly connected to a rubber pad 23. A group of positioning frames 19 are respectively fixedly connected to both sides of the plastic frame 17. The positioning frame 19 is movably connected to the carton body 1. Both ends of one side of the positioning frame 19 are respectively fixedly connected to a group of side panels 21. One side of one end of the side panel 21 is fixedly connected to a baffle 20. A sealing plate 24 is movably connected to one side of the positioning frame 19, and a pull plate 25 is fixedly connected to the top of the sealing plate 24.

[0034] The sealing plate 24 is slidably connected to the baffle 20, and the sealing plate 24 is movably connected to the side plate 21;

[0035] The through slot 22 is connected to the interior of the carton body 1, and the center line of the sealing plate 24 and the center line of the plastic frame 17 are on the same vertical plane;

[0036] Specifically, if Figure 1 、 Figure 3 and Figure 4 As shown, through slots 22 are provided on both sides of the carton body 1, and a plastic frame 17 is embedded in the through slots 22. The positioning frames 19 on both sides of the plastic frame 17 are attached to the box wall of the carton body 1, which can effectively position the plastic frame 17. The carton can be easily lifted by the plastic frame 17 during use. The rubber pad 23 inside the plastic frame 17 can prevent cuts. During transportation, the pull plate 25 can be pulled to lower the sealing plate 24 and block it on one side of the plastic frame 17 to prevent internal materials from leaking. When ventilation is needed, the pull plate 25 can be pulled to raise the sealing plate 24. The baffle 20 at one end of the side panel 21 is attached to one side of the sealing plate 24, which can not only limit it, but also position the sealing plate 24 by increasing the friction. After the sealing plate 24 is raised, the inside of the plastic frame 17 is opened to keep the inside of the carton body 1 breathable, so that the internal ventilation can be controlled according to needs.

[0037] Working principle: When the utility model is in use, the four corners of the carton body 1 are adhered with a third corner pad 15 by liquid glue, and the edge position is adhered with a third reinforcing cardboard 14, and the third reinforcing cardboard 14 and the third corner pad 15 are an integrated structure, which can effectively reinforce and support the entire carton body 1. The four corners of the carton body 1 are adhered with a second corner pad 11, and the edge position of the interior is adhered with a second reinforcing cardboard 12. The second reinforcing cardboard 12 and the second corner pad 11 are an integrated structure, which can also strengthen the carton body 1. The body 1 is reinforced. Similarly, the first corner pads 8 adhered to the four corners of the box cover 2 and the first reinforcing cardboard 7 adhered to the edge position can improve the overall strength of the box cover 2. The inner reinforcing cardboard 13 and the outer reinforcing cardboard 18 can reinforce the four sides of the carton body 1 to further improve the strength of the carton. The bottom end of the carton cover 2 is connected to a group of embedded cardboards 4 through an adhesive layer 5. In this way, after the box cover 2 is covered on the top of the carton body 1, the embedded cardboard 4 at the bottom end of the box cover 2 will be embedded in the interior of the carton body 1, thereby limiting the box cover 2. , to prevent the box cover 2 from shifting during movement and transportation, and a rubber sheet 3 is fixed to the outside of the embedded cardboard 4, which will fit the inner wall of the carton body 1 to increase friction, further improving the stability of the box cover 2 to prevent it from falling. Through slots 22 are opened on both sides of the carton body 1, and a plastic frame 17 is embedded in the through slots 22. The positioning frames 19 on both sides of the plastic frame 17 fit on the box wall of the carton body 1 to effectively position the plastic frame 17. When in use, the carton can be easily lifted by the plastic frame 17 The rubber pad 23 inside the plastic frame 17 can prevent cuts, and during transportation, the pull plate 25 can be pulled to lower the sealing plate 24 and block it on one side of the plastic frame 17 to prevent internal materials from leaking. When ventilation is needed, the pull plate 25 can be pulled to raise the sealing plate 24. The baffle 20 at one end of the side panel 21 is attached to one side of the sealing plate 24, which can not only limit its position, but also position the sealing plate 24 by increasing the friction force. After the sealing plate 24 is raised, the inside of the plastic frame 17 is opened to keep the inside of the carton body 1 breathable.

Claims

1. A carton with an embedded limiting structure, comprising a carton body (1), characterized in that: The top of the carton body (1) is movably connected to a box cover (2), the inside and outside of the carton body (1) are respectively fixedly connected to a group of second waterproof membranes (16), the inside and outside of the box cover (2) are respectively fixedly connected to a group of first waterproof membranes (6), the two sides and ends of the bottom of the box cover (2) are respectively fixedly connected to a group of second seals (10), and the two sides and ends of the top of the carton body (1) are respectively fixedly connected to a group of first seals (9); A set of second corner pads (11) are fixedly connected to the four corners of the bottom end of the carton body (1), a second reinforcing cardboard (12) is fixedly connected to the inside of the carton body (1), a set of inner reinforcing cardboard (13) is fixedly connected to the two sides and ends of the inside of the carton body (1), a set of third corner pads (15) are fixedly connected to the four corners of the bottom end of the outside of the carton body (1), a third reinforcing cardboard (14) is fixedly connected to the outside of the carton body (1), and the third reinforcing cardboard (15) is fixedly connected to the outside of the carton body (1). The three reinforcing cardboards (14) are fixedly connected to the third corner pad (15); a group of outer reinforcing cardboards (18) are fixedly connected to both sides and ends of the exterior of the carton body (1); the outer reinforcing cardboards (18) are fixedly connected to the third reinforcing cardboards (14); a group of first corner pads (8) are fixedly connected to the four corners of the top of the exterior of the box cover (2); the exterior of the box cover (2) is fixedly connected to the first reinforcing cardboard (7); the first reinforcing cardboard (7) is fixedly connected to the first corner pad (8).

2. A carton with an embedded limiting structure according to claim 1, characterized in that: The second reinforcing paperboard (12) is fixedly connected to the second corner pad (11), and the inner reinforcing paperboard (13) is fixedly connected to the second reinforcing paperboard (12).

3. The carton with an embedded limiting structure according to claim 1, characterized in that: The center line of the inner reinforcing paperboard (13) and the center line of the carton body (1) are on the same vertical plane, and the center line of the outer reinforcing paperboard (18) and the center line of the carton body (1) are on the same vertical plane.

4. The carton with an embedded limiting structure according to claim 1, characterized in that: The bottom end of the box cover (2) is fixedly connected to an adhesive layer (5), the bottom end of the adhesive layer (5) is fixedly connected to an embedded cardboard (4), and the outside of the embedded cardboard (4) is fixedly connected to a rubber sheet (3).

5. The carton with an embedded limiting structure according to claim 4, characterized in that: The center line of the embedded paperboard (4) and the center line of the box cover (2) are on the same vertical plane, and the rubber sheet (3) is movably connected to the carton body (1).

6. The carton with an embedded limiting structure according to claim 1, characterized in that: A group of through slots (22) are respectively provided on both sides of the carton body (1), a plastic frame (17) is fixedly connected inside the through slots (22), a rubber pad (23) is fixedly connected to the top of the plastic frame (17), a group of positioning frames (19) are respectively fixedly connected on both sides of the plastic frame (17), the positioning frames (19) are movably connected to the carton body (1), a group of side panels (21) are respectively fixedly connected at both ends of one side of the positioning frame (19), a baffle (20) is fixedly connected to one side of one end of the side panel (21), a sealing plate (24) is movably connected to one side of the positioning frame (19), and a pull plate (25) is fixedly connected to the top of the sealing plate (24).

7. The carton with an embedded limiting structure according to claim 6, characterized in that: The sealing plate (24) is slidably connected to the baffle (20), and the sealing plate (24) is movably connected to the side plate (21).

8. The carton with an embedded limiting structure according to claim 6, characterized in that: The through groove (22) is connected to the interior of the carton body (1), and the center line of the sealing plate (24) and the center line of the plastic frame (17) are on the same vertical plane.