Tear-resistant corrugated carton
By introducing double-layer corrugated paper, cushioning layer and L-shaped board into the corrugated cardboard box, the problem of tearing and deformation of the corrugated cardboard box during transportation is solved, and better tear resistance and impact protection are achieved.
Patent Information
- Application Number
- CN202520561970.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing corrugated cardboard boxes are easily torn during handling and lack reinforcement, resulting in reduced protective performance and affecting their usability and appearance.
It adopts a structural design with double-layer corrugated paper, buffer layer, moisture-proof film, mesh polyethylene film and L-shaped plate, combined with elastic materials and clamping posts to enhance tear resistance and impact resistance, and protect the contents through elastic deformation and uniform force distribution.
It improves the tear and impact resistance of corrugated cardboard boxes, reduces localized tears, enhances moisture protection, protects internal items, and maintains their appearance and performance.
Smart Images

Figure CN223804035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to corrugated case technical field, concretely is a kind of tear-resistant corrugated case. BACKGROUND
[0002] In the process of logistics transportation and commodity storage, corrugated case plays an important role as a commonly used packaging container.
[0003] The existing corrugated case is prone to tearing damage when being accidentally collided, squeezed and scraped by sharp objects during handling operation. Once the corrugated case is torn, the protection performance for the internal goods will be reduced, which may cause the goods to be damaged, resulting in losses to the merchants and consumers. When the corrugated case is used, the edges of the box board are connected and fixed by simple nails. Since no reinforcing structure is provided, deformation or even cracking may occur during handling or stacking, thereby affecting the use effect and appearance image. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides a tear-resistant corrugated case, which has the advantages of tear resistance and solves the problems raised in the background art.
[0005] To achieve the above-mentioned purpose of tear resistance, the utility model provides the following technical scheme: a tear-resistant corrugated case, comprising a paper box body, four side plates movably arranged on the upper end of the paper box body;
[0006] The paper box body is internally provided with a double-layer corrugated paper layer, the inner layer of the double-layer corrugated paper layer is provided with a buffer layer, the buffer layer is internally provided with a plurality of semicircular blocks, the outer layer of the corrugated paper layer is provided with a moisture-proof film, the outer layer of the moisture-proof film is provided with a reticular polyethylene film, and the inner layer of the corrugated paper layer is provided with a heat insulation layer.
[0007] As a further scheme of the utility model: the four edges of the paper box body are each provided with an L-shaped plate, the L-shaped plates are each made of hard plastic, the L-shaped plates are connected with the paper box body through a plurality of clamping columns, a bottom plate is installed at the lower end of the L-shaped plate, the bottom plate is made of kraft paper, the four L-shaped plates can improve the anti-collision ability of the paper box body, and can improve the firmness of the paper box body, improve the pressure-bearing capacity, avoid deformation, and do not affect the use effect and appearance image.
[0008] As a further scheme of the utility model: the semicircular blocks and the filling of the buffer layer are provided with sound-absorbing cotton, which can improve the sound insulation property.
[0009] As a further scheme of the utility model: the semicircle block is made of elastic rubber material, the semicircle block in the buffer layer can produce elastic deformation and buffer, thereby protecting the stored articles, avoiding article breakage caused by impact and reducing loss.
[0010] As a further scheme of the utility model: the paper box body is internally provided with two buffer plates, the buffer plate is internally connected with four springs, the four springs are elastically moved, and the two buffer plates can buffer the impact on the top of the paper box body and protect.
[0011] As a further scheme of the utility model: the upper buffer plate is provided with two groups of notches in the upper end, the notches take out the buffer plate, and convenience is provided.
[0012] As a further scheme of the utility model: the side plate is provided with two sealing strips in the upper end, the sealing strips seal the side plate, and the tightness is improved.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1、When the paper box body is subjected to tearing force, the reticular polyethylene film can evenly disperse the force to the whole grid instead of concentrating on a point, the possibility of local tearing is reduced, the tearing resistance is improved, the moisture-proof film can improve the moisture-proof capacity of the paper box body surface, when the paper box body is subjected to impact, the semicircle block in the buffer layer can produce elastic deformation and buffer, thereby protecting the stored articles, avoiding article breakage caused by impact and reducing loss to the merchant and consumer.
[0015] 2、The four L-shaped plates can improve the anti-impact capacity of the paper box body, improve the firmness of the paper box body, improve the pressure bearing capacity, avoid deformation, and do not affect the use effect and appearance. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the structural schematic view of the utility model;
[0017] Fig. 2 It is the appearance schematic view of four clamping columns in the utility model;
[0018] Fig. 3 It is the material structure schematic view of the paper box body in the utility model;
[0019] Fig. 4 It is the appearance schematic view of the buffer plate in the utility model.
[0020] In the figure: 1, carton body; 2, sealing strip; 3, side plate; 4, heat insulation layer; 5, clamping column; 6, L-shaped plate; 7, bottom plate; 8, buffer plate; 9, spring; 10, notch; 11, reticular polyethylene film; 12, moisture-proof film; 13, corrugated paper layer; 14, sound-absorbing cotton; 15, buffer layer; 16, semicircular block. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figs. 1-4 In the embodiments of the utility model, an anti-tearing corrugated carton comprises a carton body 1, four side plates 3 movably arranged on the upper end of the carton body 1.
[0023] The carton body 1 is internally provided with double corrugated paper layers 13, the inner layer of the double corrugated paper layers 13 is provided with a buffer layer 15, the buffer layer 15 is internally provided with a plurality of semicircular blocks 16, the outer corrugated paper layer 13 is provided with a moisture-proof film 12, the moisture-proof film 12 is externally provided with a reticular polyethylene film 11, and the inner corrugated paper layer 13 is provided with a heat insulation layer 4.
[0024] The four edges of the carton body 1 are all provided with L-shaped plates 6, the L-shaped plates 6 are all made of hard plastic, the L-shaped plates 6 are connected with the carton body 1 through a plurality of clamping columns 5, the lower end of the L-shaped plate 6 is provided with a bottom plate 7, the bottom plate 7 is made of kraft paper, the four L-shaped plates 6 can improve the anti-collision ability of the carton body 1 and can improve the firmness of the carton body 1, improve the pressure-bearing capacity, avoid deformation, and do not affect the use effect and appearance; the semicircular blocks 16 and the filling of the buffer layer 15 are provided with sound-absorbing cotton 14, the sound-absorbing cotton 14 can improve the sound insulation; the semicircular blocks 16 are made of elastic rubber material, the semicircular blocks 16 in the buffer layer 15 will produce elastic deformation, buffer, thereby protecting the stored articles, avoiding breakage of the articles caused by impact, and reducing loss; the carton body 1 is internally provided with two buffer plates 8, the buffer plate 8 is internally connected with four springs 9, the four springs 9 are elastically moved, and the two buffer plates 8 can buffer the impact on the top of the carton body 1 and protect; the upper buffer plate 8 is provided with two notches 10 at the upper end, the notches 10 take out the buffer plate 8, and provide convenience; the upper end of the side plate 3 is all provided with two sealing strips 2, the sealing strips 2 seal the side plate 3, and improve the tightness.
[0025] The working principle of the utility model is: opening four side plates 3, putting articles into the carton body 1, then putting the buffer plate 8 into the carton body 1, then closing the four side plates 3, sticking the sealing strip 2, the four L-shaped plates 6 can improve the anti-collision ability of the carton body 1, and can improve the firmness of the carton body 1, improve the pressure bearing capacity, avoid deformation, when the carton body 1 is subjected to tearing force, the reticular polyethylene film 11 can evenly disperse the force to the whole grid, instead of concentrating on a point, reducing the possibility of local tearing, thereby improving the tearing resistance, the moisture-proof film 12 can improve the moisture-proof ability of the surface of the carton body 1, when the carton body 1 is impacted, the semicircular block 16 in the buffer layer 15 will produce elastic deformation, buffering, thereby protecting the stored articles, avoiding damage of articles caused by impact, reducing loss, the heat insulation layer 4 can effectively block the incoming or outgoing of external heat, ensuring the relative stability of the temperature inside the carton body 1, the four springs 9 are elastically moved, the two buffer plates 8 can buffer the impact on the top of the carton body 1, protecting.
[0026] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A kind of tear-resistant corrugated carton, comprising paper box body (1), four side plates (3) are movably provided on the upper end of the paper box body (1); characterized in that Double corrugated paper layers (13) are arranged in the paper box body (1), the inner layer of the double corrugated paper layers (13) is provided with a buffer layer (15), a plurality of semicircular blocks (16) are arranged in the buffer layer (15), a moisture-proof film (12) is arranged on the outer layer of the corrugated paper layer (13), a reticular polyethylene film (11) is arranged on the outer layer of the moisture-proof film (12), and a heat insulation layer (4) is arranged on the inner layer of the corrugated paper layer (13).
2. A tear resistant corrugated carton according to claim 1, wherein: L-shaped plates (6) are arranged at the four edges of the paper box body (1), the L-shaped plates (6) are all made of hard plastic, the L-shaped plates (6) are connected with the paper box body (1) by a plurality of clamping columns (5), bottom plates (7) are installed at the lower ends of the L-shaped plates (6), and the bottom plates (7) are made of kraft paper.
3. A tear resistant corrugated carton according to claim 1, wherein: Sound-absorbing cotton (14) is arranged at the filling position of the semicircular blocks (16) and the buffer layer (15).
4. A tear resistant corrugated carton according to claim 1, wherein: The semicircular blocks (16) are made of elastic rubber material.
5. A tear resistant corrugated carton according to claim 1 wherein: Two buffer plates (8) are arranged in the paper box body (1), and four springs (9) are connected in the buffer plates (8).
6. A tear resistant corrugated carton according to claim 5, wherein: Two groups of notches (10) are arranged at the upper ends of the buffer plates (8).
7. A tear resistant corrugated carton according to claim 1 wherein: Two sealing strips (2) are arranged at the upper ends of the side plates (3).