Layered high-strength carton

The layered structure and sealing reinforcement design solve the problems of lateral extrusion and insufficient waterproofness of the carton, and improve the high strength and waterproof performance of the carton.

CN223327999UActive Publication Date: 2025-09-12ZHONGSHAN HENGYUAN PAPER PROD MFG CO LTD
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Patent Information

Application Number
CN202422070321.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-24
Publication Date
2025-09-12
Estimated Expiration
2034-08-24

AI Technical Summary

Technical Problem

Existing cartons are easily deformed when squeezed horizontally, have poor waterproof performance, and the protective film is easily worn, resulting in damage to the internal items and reduced waterproof performance.

Method used

It adopts a layered structure, including an outer carton, an inner carton, a sealing reinforcement part and a layer frame. The sealing reinforcement part is composed of a waterproof film, a resin layer and a shock-absorbing layer. The layer frame is composed of a supporting plate and a supporting grid, which enhances the overall strength and waterproof performance of the carton.

Benefits of technology

It effectively prevents the carton from deforming during squeezing, protects the internal items from damage, and at the same time improves the waterproof performance and enhances the overall strength and waterproof effect of the carton.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a layered high-strength carton which comprises an outer-layer carton body, an inner-layer carton body is arranged in the outer-layer carton body, an upper cover is arranged above the outer-layer carton body in a covering mode, a sealing reinforcing part is arranged between the outer-layer carton body and the inner-layer carton body, and a plurality of inserting grooves are formed in the front side and the rear side in the inner-layer carton body. Compared with the prior art, the carton has the advantages that the carton can be prevented from being deformed during extrusion, articles in the carton can be prevented from being damaged by extrusion, and meanwhile, the waterproof performance of the carton can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cartons, in particular to a layered high-strength carton. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated boxes, single-layer cardboard boxes, etc., with various specifications and models. Cartons are commonly used with three layers, each layer is divided into lining paper, corrugated paper, core paper, and face paper. The lining and face paper are tea board paper and kraft paper, and the core paper is corrugated paper. The color and feel of various papers are different. As the application of packaging cartons becomes more and more extensive, the types of items packaged are also increasing, so the quality requirements for imagination are also getting higher and higher.

[0003] Commonly used cartons generally include an inner layer, an outer layer, and a corrugated layer. Corrugated paper has high longitudinal support performance, but its support performance is insufficient when subjected to lateral compression. Therefore, cartons using corrugated paper as the support layer are easily deformed when subjected to lateral compression, which in turn makes the items inside easily squeezed. In addition, existing cartons have poor waterproof performance. When packaging, a layer of film needs to be wrapped on the outer layer for waterproofing. However, during transportation, the protective film on the outermost layer is easily worn through, thereby affecting the waterproof performance. After absorbing water, the carton will become soft and loose, and its strength will be greatly reduced. Utility Model Content

[0004] The purpose of this utility model is to provide a layered high-strength carton that can solve at least one of the above technical problems. The technical solution of this utility model is as follows:

[0005] A layered high-strength carton, comprising: an outer carton, an inner carton arranged inside the outer carton, an upper cover arranged on top of the outer carton, a sealing reinforcement portion provided between the outer carton and the inner carton, a plurality of plug-in slots provided on the front and back sides of the inner carton, a layer rack movably connected between every two corresponding plug-in slots, the sealing reinforcement portion comprising a waterproof film, a resin layer and a shock-absorbing layer sequentially arranged between the outer carton and the inner carton, the waterproof film covering and bonding to the inner wall of the outer carton.

[0006] Furthermore, the resin layer includes a plurality of resin plates bonded to the waterproof membrane, wherein one of the resin plates is bonded to the bottom of the waterproof membrane, and the remaining resin plates are bonded to the surrounding walls of the waterproof membrane.

[0007] Furthermore, the shock-absorbing layer includes corrugated cardboards bonded to each of the resin plates, and each of the corrugated cardboards is wrapped and bonded to the outer wall of the inner carton.

[0008] Furthermore, the shelf includes a plurality of support plates plugged into every two corresponding plug-in slots, a through slot is provided through each of the support plates, and a support grid is hollowed out in each of the through slots.

[0009] Preferably, tripod support blocks are provided on the front and rear sides of each support plate.

[0010] In summary, the present invention has the following beneficial effects compared to the prior art:

[0011] The utility model provides a layered high-strength carton, which, when in use, is placed by a user in an inner carton, and the articles are packed separately by means of shelves, which prevent the articles from colliding with each other and being damaged. The user then puts an upper cover on the outer carton to complete the packaging. During use, the sealing reinforcement part can prevent external moisture from soaking the articles inside and can strengthen the overall strength of the carton. Compared with the existing technology, the carton can be prevented from being deformed during squeezing, and the articles inside can be prevented from being squeezed and damaged, and the waterproof performance of the carton can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a half-section schematic diagram of the present utility model.

[0013] Figure 2 It is a three-dimensional schematic diagram of the present utility model.

[0014] Figure 3 For this utility model Figure 1 An enlarged schematic diagram of A-1.

[0015] Explanation of the accompanying reference numerals: 1. Emergency call device body; 2. Outer carton; 3. Upper cover; 4. Sealing reinforcement part; 5. Insertion slot; 6. Shelf; 41. Waterproof membrane; 42. Resin layer; 43. Shock-absorbing layer; 421. Resin board; 431. Corrugated cardboard; 61. Support plate; 62. Through slot; 63. Support grid; 611. Tripod support block. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] like Figures 1 to 3 The layered high-strength carton shown is characterized in that it includes: an outer carton 1, an inner carton 2 is arranged inside the outer carton 1, an upper cover 3 is provided on top of the outer carton 1, a sealing reinforcement part 4 is provided between the outer carton 1 and the inner carton 2, and a plurality of plug-in slots 5 are provided on the front and back sides of the inner carton 2, and a layer rack 6 is movably inserted between every two corresponding plug-in slots 5.

[0018] The above structure is a layered high-strength carton. When in use, the user places the items in the inner carton 2, and at the same time, the items are packed separately through the shelf 6. The shelf 6 can prevent the items from colliding with each other and being damaged. Then the user puts the upper cover 3 on the outer carton to complete the packaging. During use, the sealing reinforcement part 4 can prevent external moisture from soaking the internal items and at the same time enhance the overall strength of the carton. Compared with the existing technology, it can prevent the carton from deformation during squeezing, prevent the internal items from being squeezed and damaged, and at the same time improve the waterproof performance of the carton.

[0019] like Figure 2 and 3 As shown, the resin layer 42 includes a plurality of resin plates 421 bonded to the waterproof membrane 41 , wherein one of the resin plates 421 is bonded to the bottom of the waterproof membrane 41 , and the remaining resin plates 421 are bonded to the surrounding walls of the waterproof membrane 41 .

[0020] The shock-absorbing layer 43 includes corrugated cardboards 431 bonded to each of the resin plates 421 , and each of the corrugated cardboards 431 is wrapped and bonded to the outer wall of the inner carton 2 .

[0021] The shelf 6 includes a plurality of support plates 61 inserted into every two corresponding insertion slots 5 , a through slot 62 is formed in each of the support plates 61 , and a support grid 63 is hollowed out in each of the through slots 62 .

[0022] When a layered high-strength carton using the above structure is in operation, when external water soaks the outer carton 1, the waterproof membrane 41 can prevent external water from penetrating, and the outer carton 1 strengthens its supporting strength with the inner box body 2 through each resin plate 421. When the outer carton 1 encounters an impact, the items in the inner carton 2 are cushioned by each of the corrugated cardboards 431. At the same time, the resin plate 421 can enhance the overall anti-impact performance of the carton.

[0023] like Figure 2 As shown, in some embodiments of the present invention, the shelf 6 includes a plurality of support plates 61 inserted into every two corresponding insertion slots 5, a through slot 62 is provided through each of the support plates 61, and a support grid 63 is hollowed out in each of the through slots 62.

[0024] Tripod support blocks 611 are provided on both the front and rear sides of each support plate 61 .

[0025] The user inserts the support plate 61 into the through slot 62. When in use, the support plate 61 is strengthened by the support grid 63 hollowed out in the through slot 62. At the same time, the support plate 61 is strengthened by tripod support blocks 611 on the front and back sides of the support plate 61 to strengthen the strength of the support plate 61 in the inner carton 2. When the support plate 61 is installed in the inner carton 2, the overall lateral strength of the carton can be enhanced.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A layered high-strength carton, characterized in that: include: An outer carton (1) is provided with an inner carton (2) inside the outer carton (1), an upper cover (3) is provided on top of the outer carton (1), a sealing reinforcement portion (4) is provided between the outer carton (1) and the inner carton (2), a plurality of plug-in slots (5) are provided on the front and rear sides of the inner carton (2), and a shelf (6) is movably inserted between each two corresponding plug-in slots (5), and the sealing reinforcement portion (4) includes a waterproof film (41), a resin layer (42) and a shock-absorbing layer (43) sequentially provided between the outer carton (1) and the inner carton (2), and the waterproof film (41) is covered and bonded to the inner wall of the outer carton (1).

2. A layered high-strength carton according to claim 1, characterized in that The resin layer (42) comprises a plurality of resin plates (421) bonded to the waterproof membrane (41), wherein one of the resin plates (421) is bonded to the bottom of the waterproof membrane (41), and the remaining resin plates (421) are bonded to the surrounding walls of the waterproof membrane (41).

3. A layered high-strength carton according to claim 2, characterized in that The shock absorbing layer (43) comprises corrugated cardboards (431) bonded to each of the resin plates (421), and each of the corrugated cardboards (431) is wrapped and bonded to the outer wall of the inner carton (2).

4. A layered high-strength carton according to claim 1, characterized in that The shelf (6) comprises a plurality of support plates (61) inserted into every two corresponding insertion slots (5), a through slot (62) is provided through each of the support plates (61), and a support grid (63) is hollowed out in each of the through slots (62).

5. A layered high-strength carton according to claim 4, characterized in that Tripod support blocks (611) are provided on both the front and rear sides of each support plate (61).