A moisture-proof and corrosion-resistant high-strength corrugated paper packaging box

CN224899429UActive Publication Date: 2026-10-27ZHEJIANG LONGSHI PAPER PLASTIC PACKAGING CO LTD
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Patent Information

Application Number
CN202522660609.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-16
Publication Date
2026-10-27
Estimated Expiration
2035-12-16

AI Technical Summary

Technical Problem

目前现有的防潮防腐高强度瓦楞纸包装盒在使用时,虽然能够通过特殊涂层,使包装盒整体具备一定的防潮防腐功能,但受防护效果具有时效性的影响,包装盒在直接接触且浸泡在液体中一段时间后,会因底部结构薄弱,容易出现底部软化塌陷的问题,导致包装物品存在从底部发生漏出掉落的风险,因此,针对上述问题提出一种防潮防腐高强度瓦楞纸包装盒

Benefits of technology

本实用新型中,通过设置的上轻质托板、塑料卡套、下轻质托板、限定螺柱、底槽、限定卡盘、塑料托条、限定边槽、限定包边和黏结泡棉,会方便该防潮防腐高强度瓦楞纸包装盒能够制作出及投入使用之前,可在塑料卡套的预埋固定作用下,将由上轻质托板、塑料卡套、下轻质托板、限定螺柱、底槽、限定卡盘、塑料托条、限定边槽、限定包边和黏结泡棉组成的底部加固支撑结构加装到复合包装底盒的底部位置,使其能够在整个包装件的使用过程中,能够起到抬高包装件、隔离直接接触或浸泡液体及增强复合包装底盒底部位置的轻度的作用,避免复合包装底盒因直接接触且浸泡在液体中一段时间后,容易出现底部软化塌陷的问题,同时在显著提高复合包装底盒底部的强度后,还能够充分降低包装物品存在从复合包装底盒底部发生漏出掉落的风险。

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Abstract

The utility model relates to corrugated paper packaging box technical field especially is a kind of moisture-proof anticorrosive high-strength corrugated paper packaging box, including composite packing bottom box, the inside lower portion of composite packing bottom box is clamped with upper light supporting plate, the bottom surface middle position of composite packing bottom box is fixedly installed with plastic sleeve, the inside of plastic sleeve is inserted with limiting stud, in the utility model, through the upper light supporting plate, plastic sleeve, lower light supporting plate, limiting stud, bottom groove, limiting chuck, plastic supporting strip, limiting edge slot, limiting edge and bonding foam that are set, it will be convenient that the moisture-proof anticorrosive high-strength corrugated paper packaging box can be made and before putting into use, bottom reinforcing support structure is added to the bottom position of composite packing bottom box, to play the role of lifting packing piece, isolating direct contact or soaking liquid and enhancing the light degree of composite packing bottom box bottom position, avoid the problem that composite packing bottom box is prone to bottom softening collapse.
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Description

Technical Field

[0001] This utility model relates to the technical field of corrugated paper packaging boxes, specifically a moisture-proof, corrosion-resistant, and high-strength corrugated paper packaging box. Background Technology

[0002] In the packaging industry, moisture-proof and corrosion-resistant high-strength corrugated cardboard boxes are corrugated cardboard boxes made using special processes (such as applying a special coating to the surface and using thickened corrugated layers in the raw materials). They combine the functions of moisture-proof, corrosion-proof, and enhanced structural strength. They are mainly used to protect goods that are susceptible to moisture and corrosion, such as food (e.g., seafood, nuts), chemical products (e.g., corrosive liquids), and precision electronic components, which have high requirements for humidity and protective performance. Currently available high-strength corrugated cardboard packaging boxes, while possessing a certain degree of moisture and corrosion resistance through special coatings, suffer from time-limited protective effects. After direct contact with and immersion in liquids for a period of time, the box's weak bottom structure can easily soften and collapse, leading to a risk of leakage and loss of packaged goods. Therefore, a new high-strength corrugated cardboard packaging box with moisture and corrosion resistance is proposed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a moisture-proof, corrosion-resistant, and high-strength corrugated paper packaging box to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box includes a composite packaging base box. An upper lightweight tray is fitted onto the lower inner side of the composite packaging base box. A plastic sleeve is fixedly installed in the middle of the bottom surface of the composite packaging base box. A limiting stud is inserted into the inner side of the plastic sleeve. A lower lightweight tray is attached to the bottom surface of the composite packaging base box. A bottom groove is formed on the bottom surface of the lower lightweight tray. A limiting chuck is fitted into the inner side of the bottom groove. Plastic support strips are fixedly connected to both the left and right sides of the lower lightweight tray. Limiting edgings are fixedly connected to the front and rear ends of the top of each plastic support strip. Adhesive foam is bonded to the inner surface of the limiting edgings.

[0005] Preferably, the outer surface of the composite packaging base box has four diagonally lower corners with defined side grooves. The inner shape and size of the defined side grooves and the outer end of the defined edging are matched. The inner side of the defined side grooves is bonded to the adhesive foam. The defined edging has an "L" shaped structure.

[0006] Preferably, the top of the composite packaging base box is fitted with a composite packaging box lid, and the composite packaging box lid and the composite packaging base box are fitted together vertically.

[0007] Preferably, the size of the upper lightweight pallet is the same as the internal space size of the composite packaging bottom box, and the upper and lower lightweight pallets are arranged vertically parallel to each other.

[0008] Preferably, the two plastic support strips are arranged symmetrically along the vertical central axis of the composite packaging bottom box, and there is a height difference between the plastic support strips and the lower lightweight tray. The limiting chuck and the limiting stud extending into the bottom groove are detachably connected, and the limiting stud and the upper lightweight tray are fixedly connected.

[0009] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the upper lightweight tray, plastic sleeve, lower lightweight tray, limiting stud, bottom groove, limiting chuck, plastic support strip, limiting side groove, limiting edge, and adhesive foam are designed to facilitate the manufacture and use of the moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box. Before use, the bottom reinforcement support structure, composed of the upper lightweight tray, plastic sleeve, lower lightweight tray, limiting stud, bottom groove, limiting chuck, plastic support strip, limiting side groove, limiting edge, and adhesive foam, can be installed at the bottom of the composite packaging box, thanks to the pre-embedded fixing effect of the plastic sleeve. This allows the box to elevate the packaging, isolate it from direct contact with or immersion in liquids, and slightly strengthen the bottom of the composite packaging box during its use. This prevents the bottom of the composite packaging box from softening and collapsing after direct contact with or immersion in liquids for a period of time. Furthermore, by significantly improving the strength of the bottom of the composite packaging box, the risk of packaged items leaking out and falling from the bottom of the box is also greatly reduced. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall bottom view of the present invention; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the composite packaging bottom box of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the lightweight pallet and the limiting chuck of this utility model.

[0011] In the diagram: 1. Composite packaging bottom box; 2. Upper lightweight tray; 3. Plastic card sleeve; 4. Lower lightweight tray; 5. Limiting stud; 6. Bottom groove; 7. Limiting chuck; 8. Plastic support strip; 9. Limiting side groove; 10. Limiting edge binding; 11. Composite packaging box lid; 12. Adhesive foam. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-4 This utility model provides a technical solution: A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box includes a composite packaging base box 1. An upper lightweight tray 2 is fitted inside the lower part of the composite packaging base box 1. A plastic sleeve 3 is fixedly installed in the middle of the bottom surface of the composite packaging base box 1. A limiting stud 5 is inserted into the inside of the plastic sleeve 3. A lower lightweight tray 4 is attached to the bottom surface of the composite packaging base box 1. A bottom groove 6 is opened on the bottom surface of the lower lightweight tray 4. A limiting chuck 7 is fitted inside the bottom groove 6. Plastic support strips 8 are fixedly connected to both the left and right sides of the lower lightweight tray 4. Limiting edge banding 10 is fixedly connected to the front and rear ends of the top of the plastic support strips 8. Adhesive foam 12 is glued to the inner surface of the limiting edge banding 10.

[0014] like Figure 1 and Figure 2 As shown, four limiting grooves 9 are provided at the lower corners of the outer surface of the composite packaging bottom box 1. The inner shape and size of the limiting grooves 9 and the outer end of the limiting edge 10 are matched. The inner side of the limiting grooves 9 is bonded to the adhesive foam 12. The limiting edge 10 has an "L" shaped structure. The docking of the limiting edge 10 and the limiting grooves 9 facilitates the precise bonding of the adhesive foam 12 to the composite packaging bottom box 1.

[0015] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the composite packaging base box 1 is fitted with a composite packaging box cover 11. The composite packaging box cover 11 and the composite packaging base box 1 are vertically and vertically matched, and the vertical and vertical matching settings make the composite packaging base box 1 and the composite packaging box cover 11 more stable after combination. The size of the upper lightweight tray 2 is the same as the internal space size of the composite packaging base box 1. The upper lightweight tray 2 and the lower lightweight tray 4 are vertically parallel. The two plastic support strips 8 are symmetrically arranged along the vertical central axis of the composite packaging base box 1. There is a height difference between the plastic support strips 8 and the lower lightweight tray 4. The limiting chuck 7 and the limiting stud 5 extending into the bottom groove 6 are detachably connected by threads. The limiting stud 5 and the upper lightweight tray 2 are fixedly connected. This structure is conducive to the bottom reinforcement support structure, which is installed at the bottom position of the composite packaging base box 1 by the vertical docking method.

[0016] Workflow: The packaging in this utility model undergoes a special coating process during production, and the main raw material is thickened corrugated paper. This gives the packaging a moisture-proof, corrosion-proof, and high-strength effect after use. Before transporting goods, when using this moisture-proof, corrosion-proof, and high-strength corrugated paper packaging box, first align the upper lightweight tray 2 with the inside of the composite packaging bottom box 1 and insert it. The limiting stud 5 connecting the upper lightweight tray 2 penetrates the inside of the plastic sleeve 3 and extends to the bottom of the composite packaging bottom box 1. Next, peel off the release paper on the inner side of the adhesive foam 12, align it with the inside of the four limiting side grooves 9, and insert the four limiting edges 10. Through the adhesive properties of the adhesive foam 12, the limiting edges 10 and the composite packaging bottom box 1 are bonded together, allowing the lower lightweight tray 4 to be fitted with the limiting stud 5. Then, align it with the inside of the bottom groove 6 and insert the limiting chuck 7. The limiting studs 5 are spirally connected together, and the limiting studs 5 limit the lower lightweight tray 4 that abuts against the bottom surface of the composite packaging base box 1, so that it can form an upper and lower docking relationship with the upper lightweight tray 2. At this time, after the plastic support strip 8 supports the left and right sides of the bottom of the composite packaging base box 1, the bottom reinforcement support structure composed of the upper lightweight tray 2, plastic sleeve 3, lower lightweight tray 4, limiting studs 5, bottom groove 6, limiting chuck 7, plastic support strip 8, limiting side groove 9, limiting edge wrapping 10 and adhesive foam 12 can be installed at the bottom position of the composite packaging base box 1. This design can raise the package and avoid direct contact or soaking with liquids on the ground, while also significantly improving the overall strength of the bottom position of the package and preventing subsequent softening and collapse. Afterwards, the items are placed into the composite packaging base box 1, and the composite packaging box lid 11 is closed again, and the entire packaging work is completed.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box, comprising a composite packaging base box (1), characterized in that: The lower inner side of the composite packaging bottom box (1) is fitted with an upper lightweight tray (2). A plastic sleeve (3) is fixedly installed in the middle of the bottom surface of the composite packaging bottom box (1). A limiting stud (5) is inserted into the inner side of the plastic sleeve (3). A lower lightweight tray (4) is attached to the bottom surface of the composite packaging bottom box (1). A bottom groove (6) is opened on the bottom surface of the lower lightweight tray (4). A limiting chuck (7) is fitted into the inner side of the bottom groove (6). Plastic support strips (8) are fixedly connected to both the left and right sides of the lower lightweight tray (4). A limiting edge band (10) is fixedly connected to the front and rear ends of the top of the plastic support strip (8). Adhesive foam (12) is glued to the inner surface of the limiting edge band (10).

2. The moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box according to claim 1, characterized in that: The outer surface of the composite packaging bottom box (1) has four corner grooves (9) at the lower position of the four corners. The inner shape and size of the corner groove (9) and the outer end of the edging (10) are matched. The inner side of the corner groove (9) is bonded to the adhesive foam (12). The edging (10) has an "L" shaped structure.

3. A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box according to claim 1, characterized in that: The top of the composite packaging bottom box (1) is fitted with a composite packaging box cover (11), and the composite packaging box cover (11) and the composite packaging bottom box (1) are fitted together vertically.

4. A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box according to claim 1, characterized in that: The size of the upper lightweight tray (2) is the same as the internal space size of the composite packaging bottom box (1), and the upper lightweight tray (2) and the lower lightweight tray (4) are arranged vertically parallel to each other.

5. A moisture-proof, corrosion-resistant, high-strength corrugated cardboard packaging box according to claim 1, characterized in that: The two plastic support strips (8) are arranged symmetrically on the left and right sides along the vertical central axis of the composite packaging bottom box (1). There is a height difference between the plastic support strips (8) and the lower lightweight tray (4). The limiting chuck (7) and the limiting stud (5) extending into the bottom groove (6) are detachably connected by threads. The limiting stud (5) and the upper lightweight tray (2) are fixedly connected.