High-barrier dustproof corrugated carton

By setting up a reinforcing frame and connecting components inside the corrugated cardboard box, a stable connection between the upper and lower corrugated cardboard boxes is achieved, solving the problems of loose connections and poor dustproof performance, and improving dustproof and protective performance.

CN224410200UActive Publication Date: 2026-06-26ZHEJIANG SHENGHUA PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SHENGHUA PACKAGING CO LTD
Filing Date
2025-05-06
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The magnetic connection method of existing corrugated cardboard boxes is prone to loosening, which reduces the dustproof effect and may damage the contents, and also causes large deformation.

Method used

It adopts an upper corrugated cardboard box and a lower corrugated cardboard box nesting structure, with an internal reinforced frame and connecting components. It is connected by vertical plates, slots, and threaded rods to improve connection stability and protection.

Benefits of technology

It enhances the connection stability and dustproof effect of corrugated cardboard boxes, reduces the possibility of dust entering, and avoids damage to items caused by box separation and deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of high-barrier dustproof corrugated carton, comprising: upper corrugated carton and lower corrugated carton, the upper corrugated carton is sleeved on the outer wall of lower corrugated carton, reinforcing frame is set in the upper corrugated carton and lower corrugated carton inside, connecting assembly is set at the both sides of reinforcing frame.The beneficial effects of the utility model are: through the insertion between vertical plate and slot, the insertion connection between upper corrugated carton and lower corrugated carton is realized, the stability of connection is improved, and the upper and lower both sides are strengthened and protected by fixed frame and fixed plate, the four side walls are protected by vertical plate, the barrier effect of external action is improved, and the protective property is increased.
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Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a high-barrier, dustproof corrugated cardboard box. Background Technology

[0002] Corrugated cardboard boxes are paper packaging containers made from corrugated cardboard. Due to their low cost, ease of processing, and recyclability, corrugated cardboard boxes are widely used in the packaging and transportation of various products.

[0003] In the prior art, CN214421147U discloses a dustproof and barrier corrugated cardboard box, comprising a base plate and a protective box. The box body is fixedly installed in the center of the upper surface of the base plate, and a positioning groove is formed on the outer side of the upper surface of the base plate. First magnet blocks are fixedly installed in the center of the left, right, front, and rear sides of the inner wall at the bottom end of the positioning groove. The connection between the box body and the protective box uses a magnetic attraction method. This connection method is prone to loosening or even deformation during actual use due to external forces on the corrugated cardboard box, causing the box body and protective box to separate. This not only allows dust and other impurities from the external environment to enter the box, reducing the dustproof effect, but also excessive deformation of the corrugated cardboard box can damage the packaged items, hindering packaging use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this application proposes a high-barrier dustproof corrugated cardboard box, which effectively improves the dustproof and protective effect of the corrugated cardboard box.

[0005] This utility model provides the following technical solution: a high-barrier dustproof corrugated cardboard box, comprising: an upper corrugated cardboard box and a lower corrugated cardboard box, the upper corrugated cardboard box being fitted onto the outer wall of the lower corrugated cardboard box, and both the upper and lower corrugated cardboard boxes having a reinforcing frame inside, with connecting components provided on both sides of the reinforcing frame.

[0006] As a preferred embodiment of this utility model, the reinforced frame includes a fixed frame, a fixed plate is fixedly connected to the inner side wall of the fixed frame, and several vertical plates are fixedly connected to one side of the upper and lower fixed frames facing each other. Slots are provided on the side of the fixed frame near the vertical plates, and the side of the vertical plates away from the fixed frame is inserted into the slots.

[0007] As a preferred embodiment of this utility model, the fixing plate is arranged in a cross shape, and four vertical plates are provided and located near the center of each side wall of the fixing frame.

[0008] As a preferred embodiment of this utility model, the upper corrugated cardboard box and the lower corrugated cardboard box have the same thickness, the thickness of the fixing frame is less than the thickness of the upper corrugated cardboard box, and the thickness of the vertical plate is less than the thickness of the upper corrugated cardboard box.

[0009] As a preferred embodiment of this utility model, the connecting component includes threaded holes, and concentrically arranged threaded holes are provided on the side walls of the left and right vertical plates. The same threaded rod is internally threaded into the two threaded holes on the same side, and a flat plate is fixedly connected to the end of the threaded rod away from the inner cavity of the upper corrugated cardboard box.

[0010] As a preferred embodiment of this utility model, a movable plate is movably connected to the flat plate, and the movable plate is concave.

[0011] The beneficial effects of this utility model are:

[0012] 1. In this utility model, the upper corrugated cardboard box and the lower corrugated cardboard box are connected by the insertion between the vertical plate and the slot, which improves the stability of the connection. Furthermore, the upper and lower sides are reinforced by the fixed frame and the fixed plate, and the four side walls are protected by the vertical plate, which improves the barrier effect against external forces and increases the protection.

[0013] 2. In this utility model, the vertical plates on both sides are connected and positioned by the threaded connection between the threaded rod and the threaded hole. At this time, the upper corrugated cardboard box and the lower corrugated cardboard box are firmly connected together, which effectively reduces the misalignment and movement between the upper corrugated cardboard box and the lower corrugated cardboard box caused by external forces, so that the upper corrugated cardboard box and the lower corrugated cardboard box work together to improve the internal barrier and dust prevention effect. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the transverse cross section of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the interior of the upper and lower corrugated cardboard boxes of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the reinforced frame of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the connecting component of this utility model;

[0019] In the diagram: 1. Upper corrugated cardboard box; 2. Lower corrugated cardboard box; 3. Reinforcing frame; 4. Connecting components; 5. Fixing frame; 6. Fixing plate; 7. Vertical plate; 8. Slot; 9. Threaded rod; 10. Flat plate; 11. Movable plate; 12. Threaded hole. Detailed Implementation

[0020] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example

[0022] like Figures 1 to 5 As shown, a high-barrier dustproof corrugated cardboard box includes: an upper corrugated cardboard box 1 and a lower corrugated cardboard box 2, wherein the upper corrugated cardboard box 1 is fitted onto the outer wall of the lower corrugated cardboard box 2;

[0023] In this embodiment, by nesting the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2, and because the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are tightly attached, double-layer protection is achieved for the items inside the lower corrugated cardboard box 2, which has a good blocking and protection effect, effectively reduces the possibility of dust entering, and improves the dustproof effect.

[0024] In this embodiment, both the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are equipped with a reinforcing frame 3. The reinforcing frame 3 includes a fixed frame 5. A fixed plate 6 is fixedly connected to the inner side wall of the fixed frame 5. Several vertical plates 7 are fixedly connected to the opposite side of the upper and lower fixed frames 5. The fixed plates 6 are arranged in a cross shape. There are four vertical plates 7, which are located near the center of each side wall of the fixed frame 5. A slot 8 is opened on the side of the fixed frame 5 near the vertical plate 7. The side of the vertical plate 7 away from the fixed frame 5 is inserted into the slot 8.

[0025] In this embodiment, the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are connected by the insertion between the vertical plate 7 and the slot 8, which improves the stability of the connection. Furthermore, the upper and lower sides are reinforced by the fixing frame 5 and the fixing plate 6, and the four side walls are protected by the vertical plate 7, which improves the barrier effect against external forces and increases the protection.

[0026] In this embodiment, the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are set to the same thickness, the thickness of the fixing frame 5 is less than the thickness of the upper corrugated cardboard box 1, and the thickness of the vertical plate 7 is less than the thickness of the upper corrugated cardboard box 1, so that the vertical plate 7 and the fixing frame 5 are both fixedly installed inside the corrugated cardboard.

[0027] In this embodiment, connecting components 4 are provided on both sides of the reinforcing frame 3. The connecting components 4 include threaded holes 12. The side walls of the left and right vertical plates 7 are provided with concentrically arranged threaded holes 12. The same threaded rod 9 is internally threaded to the two threaded holes 12 on the same side. A flat plate 10 is fixedly connected to one end of the threaded rod 9 away from the inner cavity of the upper corrugated cardboard box 1.

[0028] In this embodiment, the vertical plates 7 on both sides are connected and positioned by the threaded connection between the threaded rod 9 and the threaded hole 12. At this time, the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are firmly connected together, which effectively reduces the misalignment between the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 caused by external forces, so that the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 work together to improve the internal barrier and dust prevention effect.

[0029] In this embodiment, a movable plate 11 is movably connected to the flat plate 10. The movable plate 11 is concave, and the carton can be easily moved and transported through the movable plate 11.

[0030] Implementation plan: When in use, place the item into the inner cavity of the lower corrugated cardboard box 2, and then fit the upper corrugated cardboard box onto the outer wall of the lower corrugated cardboard box 2, so that the vertical plates 7 on the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are interlocked with the slots 8. Then, screw the threaded rod 9 into the threaded hole 12 on the side wall of the upper corrugated cardboard box 1. Through the threaded connection between the threaded rod 9 and the threaded hole 12, the vertical plates 7 on both sides are connected and positioned. At this time, the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 are firmly connected together, effectively reducing the misalignment and movement between the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 caused by external forces, so that the upper corrugated cardboard box 1 and the lower corrugated cardboard box 2 work together to improve the internal barrier and dust prevention effect.

[0031] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-barrier, dustproof corrugated cardboard box, characterized in that, include: The upper corrugated cardboard box and the lower corrugated cardboard box are fitted onto the outer wall of the lower corrugated cardboard box. Both the upper and lower corrugated cardboard boxes have a reinforcing frame inside, and connecting components are provided on both sides of the reinforcing frame.

2. The high-barrier dustproof corrugated cardboard box according to claim 1, characterized in that, The reinforced frame includes a fixed frame, with a fixed plate fixedly connected to the inner side wall of the fixed frame. Several vertical plates are fixedly connected to one side of the upper and lower fixed frames facing each other. Slots are provided on the side of the fixed frame near the vertical plates, and the vertical plates are inserted into the slots on the side away from the fixed frame.

3. A high-barrier, dustproof corrugated cardboard box according to claim 2, characterized in that, The fixing plates are arranged in a cross shape, and there are four vertical plates located near the center of each side wall of the fixing frame.

4. A high-barrier, dustproof corrugated cardboard box according to claim 2, characterized in that, The thickness of the upper and lower corrugated cardboard boxes is the same, the thickness of the fixed frame is less than the thickness of the upper corrugated cardboard box, and the thickness of the vertical plate is less than the thickness of the upper corrugated cardboard box.

5. A high-barrier dustproof corrugated cardboard box according to claim 2, characterized in that, The connecting component includes threaded holes. Concentric threaded holes are provided on the side walls of the left and right vertical plates. The same threaded rod is threaded into the two threaded holes on the same side. A flat plate is fixedly connected to the end of the threaded rod away from the inner cavity of the upper corrugated cardboard box.

6. A high-barrier dustproof corrugated cardboard box according to claim 5, characterized in that, A movable plate is movably connected to the flat plate, and the movable plate is concave in shape.