Corrugated carton with moisture-proof function

Abstract

This utility model relates to the field of corrugated cardboard box technology, specifically, to a corrugated cardboard box with moisture-proof function. The box includes a box body, which consists of a base layer in the middle, a waterproof coating on the outer surface of the base layer, and a moisture-proof inner lining layer on the inner surface of the base layer. The base layer consists of a central load-bearing cardboard in the middle and outer reinforcing plates on both sides of the central load-bearing cardboard. A central corrugated cardboard is fixedly installed between the outer reinforcing plates and the central load-bearing cardboard. A lid is provided on the top of the box body, and multiple moisture-proof bases are fixedly installed on the bottom of the box body. A central pressure-resistant plate is fixedly installed between the multiple moisture-proof bases. Reinforcing corner plates are fixedly installed at the four corners on the inner side of the box body. This utility model has a moisture-proof function, which helps to extend its service life.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically to a corrugated cardboard box with moisture-proof function. Background Technology

[0002] With social development, corrugated cardboard boxes, as a widely used packaging product, are used in huge quantities in various industries due to their advantages such as being environmentally friendly, low-cost, easy to process and transport.

[0003] There are many types of corrugated cardboard boxes on the market. Because their main material is paper, existing corrugated cardboard boxes are highly absorbent. In humid environments, such as rainy weather or warehouses with high humidity, corrugated cardboard boxes easily absorb a lot of moisture. Excessive moisture absorption not only reduces the strength of the corrugated cardboard box itself, causing deformation and damage, and failing to effectively protect the contents, but may also cause the contents to become damp. This is especially serious for foods, electronic products, and medicines that are prone to moisture and spoilage, leading to damage and reduced quality, resulting in economic losses for businesses and consumers.

[0004] Meanwhile, traditional corrugated cardboard boxes lack effective barriers against ground moisture, causing the bottom of the box to become damp first, which then spreads to the entire box. Therefore, we propose a moisture-proof corrugated cardboard box. Utility Model Content

[0005] The purpose of this utility model is to provide a corrugated cardboard box with moisture-proof function to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A moisture-proof corrugated cardboard box includes a box body, which is composed of a base layer disposed in the middle layer, a waterproof coating disposed on the outer surface of the base layer, and a moisture-proof inner lining layer disposed on the inner surface of the base layer. The base layer is composed of a central load-bearing cardboard disposed in the middle position and outer reinforcing plates disposed on both sides of the central load-bearing cardboard. A central corrugated cardboard is fixedly installed between the outer reinforcing plates and the central load-bearing cardboard. A box lid is provided on the top of the box body, and multiple moisture-proof bases are fixedly installed on the bottom of the box body.

[0008] Preferably, a sealing strip is provided on the inner side of the box lid, and when the box lid is closed, the sealing strip adheres to the top surface of the box body;

[0009] This feature allows for proper sealing of the lid, reducing leakage.

[0010] Preferably, a waterproof label is provided on the side of the box, and the central corrugated cardboard has a serrated structure.

[0011] Preferably, a central pressure-resistant plate is fixedly installed between the plurality of moisture-proof bases, and the thickness of the central pressure-resistant plate is less than the thickness of the moisture-proof base;

[0012] Preferably, the top surface of the central pressure-resistant plate is fixedly installed on the bottom surface of the box body, and the bottom surface of the moisture-proof base is provided with anti-slip stripes;

[0013] The above two settings can improve the overall compressive support performance by utilizing the central compression plate.

[0014] Preferably, reinforcing corner plates are fixedly installed at the four corners of the inner side of the box, and guide slopes are provided at both ends of the reinforcing corner plates;

[0015] This feature enhances the strength of the four corners of the carton, improving its compression resistance.

[0016] Preferably, the cross-section of the reinforcing angle plate is L-shaped, and the guide slope is inclined at 30° to 60°.

[0017] Preferably, a vent ring is fixedly installed on the front side panel of the housing near the top, and a one-way vent valve is fixedly installed on the inner wall of the vent ring.

[0018] This design allows hot air to escape from inside the carton, but prevents humid air from entering through the vents, ensuring air circulation inside the carton while preventing the intrusion of humid air to a certain extent.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model provides a box body composed of a base layer, a waterproof coating, and a moisture-proof inner lining. The central corrugated cardboard between the central load-bearing cardboard and the outer reinforcing board in the base layer enhances the structural strength. The waterproof coating blocks external moisture penetration, and the moisture-proof inner lining prevents internal items from getting damp. This achieves double protection from the inside and outside, thereby improving the moisture resistance and structural stability of the carton and protecting the internal items.

[0021] 2. This utility model provides comprehensive protection for the bottom of the carton by setting multiple moisture-proof bases at the bottom of the carton and using a fixedly installed central pressure-resistant plate. The moisture-proof bases block ground moisture, the central pressure-resistant plate enhances the bottom pressure-resistant support performance, and the anti-slip stripes on the bottom surface of the moisture-proof bases increase friction. This achieves the effect of preventing the bottom from getting damp, improving the overall load-bearing capacity and placement stability.

[0022] 3. This utility model enhances the sealing performance by setting a sealing strip on the inside of the box lid, and improves the corner strength and convenience of placing items by adding a reinforcing corner plate and a guiding slope at the corner of the box. The one-way ventilation valve in the ventilation ring ensures internal air circulation and blocks external humid air, achieving multi-dimensional optimization and further improving the moisture-proof effect, extending the service life of the carton, and making it more convenient to use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a cross-sectional view of the base layer of this utility model;

[0026] Figure 4 This is a cross-sectional view of the reinforcing angle plate of this utility model;

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. Box body; 10. Base layer; 101. Central load-bearing cardboard; 102. Outer reinforcing plate; 103. Central corrugated cardboard; 11. Waterproof coating; 12. Moisture-proof inner lining; 13. Box lid; 131. Sealing strip; 14. Waterproof label paper;

[0029] 2. Reinforced corner plate; 20. Guide slope;

[0030] 3. Moisture-proof base; 30. Central pressure-resistant plate;

[0031] 4. Vent ring; 40. One-way vent valve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Please see Figures 1-4 This utility model provides a technical solution: a corrugated cardboard box with moisture-proof function, including a box body 1. The box body 1 is composed of a base layer 10 disposed in the middle layer, a waterproof coating 11 disposed on the outer surface of the base layer 10, and a moisture-proof inner lining layer 12 disposed on the inner surface of the base layer 10. The waterproof coating 11 blocks external moisture, and the moisture-proof inner lining layer 12 protects the internal items, so that the box body achieves a combination of internal and external moisture protection and structural reinforcement, thereby improving the overall protection capability.

[0034] In this embodiment, the base layer 10 is composed of a central load-bearing cardboard 101 located in the middle position and outer reinforcing plates 102 located on both sides of the central load-bearing cardboard 101. A central corrugated cardboard 103 is fixedly installed between the outer reinforcing plates 102 and the central load-bearing cardboard 101. The central corrugated cardboard 103 has a serrated structure, which enhances the structural strength and makes the whole structure more solid.

[0035] Specifically, the top of the box 1 is provided with a box cover 13, which can provide a sealing and protection effect when the box cover 13 is closed; multiple moisture-proof bases 3 are fixedly installed at the bottom of the box 1, which can isolate the bottom of the box 1 from the ground moisture.

[0036] like Figure 1 As shown, a sealing strip 131 is provided on the inner side of the lid 13. After the lid 13 is closed, the sealing strip 131 adheres to the top surface of the box body 1, so that the sealing strip adheres to the top surface of the box body after the lid is closed to enhance the sealing performance. A waterproof label 14 is provided on the side of the box body 1. The waterproof label keeps the information clear in a humid environment, ensuring that the box body is sealed and moisture-proof while facilitating information identification.

[0037] like Figure 1 As shown, a central pressure-resistant plate 30 is fixedly installed between multiple moisture-proof bases 3. The thickness of the central pressure-resistant plate 30 is less than the thickness of the moisture-proof base 3. The top surface of the central pressure-resistant plate 30 is fixedly installed on the bottom surface of the box 1. Anti-slip stripes are provided on the bottom surface of the moisture-proof base 3. The central pressure-resistant plate increases the bottom load-bearing capacity, and the anti-slip stripes increase the stability of placement, thus comprehensively strengthening the moisture-proof and pressure-resistant performance of the bottom of the box.

[0038] like Figure 2 and Figure 4 As shown, reinforcing corner plates 2 are fixedly installed at the four corners of the inner side of the box 1. Both ends of the reinforcing corner plates 2 are provided with guide slopes 20. The cross-section of the reinforcing corner plates 2 is L-shaped, and the guide slopes 20 are set at an inclination of 30°~60°, which makes the reinforcing corner plates strengthen the corner strength, and the guide slopes facilitate the placement of items, thereby improving the overall pressure resistance and ease of use of the box.

[0039] It is worth noting that a venting ring 4 is fixedly installed on the front panel of the box 1 near the top. A one-way venting valve 40 is fixedly installed on the inner wall of the venting ring 4, which allows the thermal expansion air inside the box to be discharged, while preventing the external humid air from entering. This ensures internal air circulation while preventing moisture intrusion, thus balancing the needs of sealing and ventilation.

[0040] When using the moisture-proof corrugated cardboard box of this utility model, first open the box cover 13 at the top of the box body 1, and use the guiding slope 20 of the reinforcing corner plate 2 at the inner corner to smoothly put the items into the box body. The base 10 of the box body 1 is composed of a central stress-bearing cardboard, an outer reinforcing plate and a serrated central corrugated cardboard 103. With the reinforcing corner plate 2, it can stably support the items.

[0041] After placement, close the lid 13 so that the sealing strip 131 on the inner side fits tightly against the top surface of the box 1 to enhance the sealing. Then use tape to fix and seal it. The waterproof coating 11 on the outer surface of the box 1 and the moisture-proof lining layer 12 on the inner surface form double protection. The waterproof label 14 on the side can clearly display the item information.

[0042] During handling, the moisture-proof base 3 at the bottom of the box 1 isolates the box from the ground, the central anti-compression plate 30 increases the load-bearing capacity, and the anti-slip stripes on the bottom of the moisture-proof base 3 increase stability. During storage or transportation, the one-way ventilation valve 40 in the ventilation ring 4 can discharge hot air from the box and prevent external moisture from entering, ensuring that the internal items are dry.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corrugated cardboard box with moisture-proof function, comprising a box body (1), characterized in that: The box body (1) is composed of a base layer (10) set in the middle layer, a waterproof coating (11) set on the outer surface of the base layer (10) and a moisture-proof inner lining layer (12) set on the inner surface of the base layer (10). The base layer (10) is composed of a central stress-bearing cardboard (101) set in the middle position and outer reinforcing plates (102) set on both sides of the central stress-bearing cardboard (101). A central corrugated cardboard (103) is fixedly installed between the outer reinforcing plates (102) and the central stress-bearing cardboard (101). The top of the box body (1) is provided with a box cover (13), and the bottom of the box body (1) is fixedly installed with multiple moisture-proof bases (3).

2. The corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: A sealing strip (131) is provided on the inner side of the box cover (13). After the box cover (13) is closed, the sealing strip (131) adheres to the top surface of the box body (1).

3. The corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: Waterproof label paper (14) is provided on the side of the box (1), and the central corrugated cardboard (103) has a serrated structure.

4. The corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: A central pressure-resistant plate (30) is fixedly installed between multiple moisture-proof bases (3), and the thickness of the central pressure-resistant plate (30) is less than the thickness of the moisture-proof base (3).

5. The corrugated cardboard box with moisture-proof function according to claim 4, characterized in that: The top surface of the central pressure plate (30) is fixedly installed on the bottom surface of the box (1), and anti-slip stripes are provided on the bottom surface of the moisture-proof base (3).

6. The corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: Reinforcing corner plates (2) are fixedly installed at the four corners of the inner side of the box (1), and guide slopes (20) are provided at both ends of the reinforcing corner plates (2).

7. The corrugated cardboard box with moisture-proof function according to claim 6, characterized in that: The cross-section of the reinforcing angle plate (2) is L-shaped, and the guide slope (20) is set at an inclination of 30°~60°.

8. The corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: A breathable ring (4) is fixedly installed on the front side plate of the box (1) near the top position, and a one-way breathable valve (40) is fixedly installed on the inner wall of the breathable ring (4).

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