Corrugated carton with moisture-proof function
By setting up a moisture-proof auxiliary mechanism inside the corrugated cardboard box, the moisture is carried away by gas flow, which solves the problem of insufficient moisture-proof performance of the corrugated cardboard box, achieves effective moisture-proof effect in humid environments, and improves the packaging protection performance of the cardboard box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HERUI PACKAGING CO LTD
- Filing Date
- 2025-08-02
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional corrugated cardboard boxes lack sufficient moisture protection, especially in humid environments, which can easily lead to dampness, condensation, or mold growth on the contents, limiting their application in high-end logistics.
A moisture-proof auxiliary mechanism is set on the bottom inside the corrugated cardboard box, including components such as an airbag seat, an air outlet, an inner compartment body, and a connecting plate. The air flows away the moisture by deforming the items under pressure, preventing moisture from damaging the items.
It effectively prevents the contents of the corrugated cardboard box from getting damp, keeps the inside of the box dry, and improves the packaging protection performance of the cardboard box in high humidity environments.
Smart Images

Figure CN224589785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard box technology, and in particular to a corrugated cardboard box with moisture-proof function. Background Technology
[0002] Corrugated cardboard is die-cut, creasing, and nailed or glued to make corrugated boxes. Corrugated boxes are the most widely used packaging products, and their usage has always been the highest among all packaging products, including calcium-plastic corrugated boxes. For more than half a century, corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their superior performance and good processing performance, becoming the mainstay of transport packaging. In addition to protecting goods and facilitating warehousing and transportation, they also beautify and promote goods. Corrugated boxes are green and environmentally friendly products, which are beneficial to the environment and easy to load, unload and transport. Traditional corrugated cardboard boxes have some drawbacks. Currently, the moisture-proof performance of ordinary corrugated cardboard boxes is significantly insufficient. Their fiber structure easily absorbs environmental moisture. When storing items in a humid environment, the cardboard box will gradually become damp and soft, leading to problems such as dampness, condensation, and even mold growth on the items inside. This defect is particularly prominent when storing moisture-sensitive items such as food, medicine, and precision instruments. Cardboard boxes that have not undergone moisture-proof treatment perform especially poorly during the rainy season or in high-humidity environments, which not only affects the preservation quality of the items but also reduces the overall protective performance of the packaging, limiting its application value in high-end logistics. Utility Model Content
[0003] The main purpose of this utility model is to provide a corrugated cardboard box with moisture-proof function, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A corrugated cardboard box with moisture-proof function includes a corrugated cardboard box body. A moisture-proof auxiliary mechanism is provided on the inner bottom of the corrugated cardboard box body. The moisture-proof auxiliary mechanism includes an airbag seat fixedly connected to the inner bottom of the corrugated cardboard box body. An air outlet groove is opened at the upper end of the airbag seat. An inner compartment body is fixedly connected to the rear side of the upper end of the airbag seat near the air outlet groove. A connecting ring is fixedly connected to the outer side of the inner compartment body. A fixing plate is fixedly connected to the upper end of the airbag seat near the inner compartment body. A connecting plate is fixedly connected to the upper end of the fixing plate. A connecting plate is fixedly connected to the upper end of the connecting plate. A pad block is fixedly connected to the inner bottom of the airbag seat.
[0005] Preferably, a second pad is fixedly connected to the inner bottom of the airbag seat near the outer side of the first pad, and a third pad is fixedly connected to the inner bottom of the airbag seat near the outer side of the second pad.
[0006] Preferably, there are two sets of air outlet slots, which are located at the front and rear ends of the airbag seat near the inner compartment body, and the inner compartment body is located inside the corrugated cardboard box body.
[0007] Preferably, the connecting ring is located above the airbag seat, the outer side of the connecting ring is fixedly connected to the inner wall of the corrugated cardboard box body, the connecting plate is wavy, and the upper end of the mating plate is fixedly connected to the lower end of the connecting ring.
[0008] Preferably, there are multiple sets of the fixing plate, connecting plate, and mating plate, and the main body material of the first pad, second pad, and third pad is elastic rubber.
[0009] Preferably, a main side cover is fixedly connected to the upper end of the corrugated cardboard box body, and a secondary side cover is fixedly connected to the rear side of the upper end of the corrugated cardboard box body near the main side cover. There are two sets of both the main side cover and the secondary side cover.
[0010] Compared with the prior art, the present invention has the following beneficial effects: By pressing the contents downwards to deform the inner compartment body, the inner compartment body presses against the airbag seat, causing the gas inside the airbag seat to flow outwards from the air outlet. The connecting plate also disturbs the gas flow in the gap between the inner compartment body and the corrugated cardboard box body. This allows the gas to carry away the moisture around the inner compartment body, thus preventing the contents inside the inner compartment body from being corroded by moisture and ensuring that the corrugated cardboard box body has a moisture-proof effect on the contents during transportation. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of a corrugated cardboard box with moisture-proof function according to this utility model; Figure 2 This is a partial structural diagram of a corrugated cardboard box with moisture-proof function according to the present invention; Figure 3 This is a schematic diagram of the moisture-proof auxiliary mechanism of a corrugated cardboard box with moisture-proof function according to the present invention; Figure 4 This is a partial structural diagram of a moisture-proof auxiliary mechanism for a corrugated cardboard box with moisture-proof function according to the present invention.
[0012] In the diagram: 1. Corrugated cardboard box body; 2. Main side cover; 3. Secondary side cover; 4. Moisture-proof auxiliary mechanism; 41. Airbag seat; 42. Air outlet groove; 43. Inner compartment body; 44. Connecting ring; 45. Fixing plate; 46. Connecting plate; 47. Butt joint plate; 48. No. 1 pad; 49. No. 2 pad; 410. No. 3 pad. Detailed Implementation
[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0014] like Figure 1-4 As shown, a corrugated cardboard box with moisture-proof function includes a corrugated cardboard box body 1. A moisture-proof auxiliary mechanism 4 is provided on the inner bottom of the corrugated cardboard box body 1. The moisture-proof auxiliary mechanism 4 includes an airbag seat 41 fixedly connected to the inner bottom of the corrugated cardboard box body 1. An air outlet groove 42 is opened at the upper end of the airbag seat 41. An inner compartment body 43 is fixedly connected to the rear side of the upper end of the airbag seat 41 near the air outlet groove 42. A connecting ring 44 is fixedly connected to the outer side of the inner compartment body 43. A fixing plate 45 is fixedly connected to the upper end of the airbag seat 41 near the side of the inner compartment body 43. A connecting plate 46 is fixedly connected to the upper end of the fixing plate 45. A butt plate 47 is fixedly connected to the upper end of the connecting plate 46. A first pad block 48 is fixedly connected to the inner bottom of the airbag seat 41.
[0015] In this embodiment, a second pad 49 is fixedly connected to the inner bottom of the airbag seat 41 near the outer side of the first pad 48, and a third pad 410 is fixedly connected to the inner bottom of the airbag seat 41 near the outer side of the second pad 49. There are two sets of air outlet grooves 42, which are located at the front and rear ends of the airbag seat 41 near the inner compartment body 43. The inner compartment body 43 is located inside the corrugated cardboard box body 1. The connecting ring 44 is located above the airbag seat 41, and the outer side of the connecting ring 44 is fixedly connected to the inner wall of the corrugated cardboard box body 1. The connecting plate 46 is wavy in shape, and the upper end of the mating plate 47 is fixedly connected to the lower end of the connecting ring 44. There are multiple sets of fixing plates 45, connecting plates 46, and mating plates 47. The main body material of the first pad 48, the second pad 49, and the third pad 410 is elastic rubber.
[0016] Specifically, the worker first places the items to be transported into the inner compartment body 43. Under the influence of gravity, the items cause the inner compartment body 43 to deform downwards, compressing the airbag seat 41. Simultaneously, the compression of the airbag seat 41 compresses the first pad 48, the second pad 49, and the third pad 410, allowing the gas inside the airbag seat 41 to flow outwards from the air outlet 42 and to flow within the gap between the inner compartment body 43 and the corrugated cardboard box body 1. At the same time, the shape of the connecting plate 46 agitates the gas, causing it to flow between the inner compartment body 43 and the corrugated cardboard box body 1. The gas flows within the gaps, allowing it to carry away moisture from the area surrounding the inner compartment 43, thus preventing the items inside the inner compartment 43 from being corroded by moisture. The items press down on the inner compartment 43, deforming it and causing it to press against the airbag seat 41. This causes the gas in the airbag seat 41 to flow outward from the air outlet 42, and the connecting plate 46 agitates the gas flow within the gap between the inner compartment 43 and the corrugated cardboard box 1. This facilitates the removal of moisture from the area surrounding the inner compartment 43, preventing the items inside the inner compartment 43 from being corroded by moisture and ensuring that the corrugated cardboard box 1 provides moisture protection for the items during transportation.
[0017] In this embodiment, a main side cover plate 2 is fixedly connected to the upper end of the corrugated cardboard box body 1, and a secondary side cover plate 3 is fixedly connected to the rear side of the upper end of the corrugated cardboard box body 1 near the main side cover plate 2. There are two sets of both the main side cover plate 2 and the secondary side cover plate 3.
[0018] Specifically, the main side cover 2 and the secondary side cover 3 are folded inward so that they cover the upper part of the corrugated cardboard box body 1, and the main side cover 2 and the secondary side cover 3 are sealed with tape, thus completing the packaging of the goods before transportation.
[0019] Working principle: In use, workers first place the items to be transported into the inner compartment body 43. Under the influence of gravity, the items deform the inner compartment body 43 downwards, compressing the airbag seat 41. Then, the main side cover 2 and the secondary side cover 3 are folded inwards, covering the top of the corrugated cardboard box body 1. The main side cover 2 and the secondary side cover 3 are then sealed with tape, completing the packaging before transport. Simultaneously, when the airbag seat 41 is compressed, it compresses the first pad 48, the second pad 49, and the third pad 410, allowing the gas inside the airbag seat 41 to flow outwards from the air outlet 42 and to flow within the gap between the inner compartment body 43 and the corrugated cardboard box body 1. At the same time, the connecting plate 46... The shape of the connecting plate 46 disturbs the gas, causing the gas to flow in the gap between the inner compartment body 43 and the corrugated cardboard box body 1. This allows the gas to carry away the moisture around the inner compartment body 43, preventing the items inside the inner compartment body 43 from being corroded by moisture. The items press down and deform the inner compartment body 43, causing it to press the airbag seat 41. This causes the gas in the airbag seat 41 to flow outward from the air outlet 42. The connecting plate 46 also disturbs the gas flow in the gap between the inner compartment body 43 and the corrugated cardboard box body 1, which facilitates the removal of moisture around the inner compartment body 43, preventing the items inside the inner compartment body 43 from being corroded by moisture and ensuring that the corrugated cardboard box body 1 has a moisture-proof effect on the items during transportation.
[0020] 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 illustrative of the principles of this 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 claims. 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 corrugated cardboard box body (1), characterized in that: A moisture-proof auxiliary mechanism (4) is provided on the inner bottom of the corrugated cardboard box body (1). The moisture-proof auxiliary mechanism (4) includes an airbag seat (41) fixedly connected to the inner bottom of the corrugated cardboard box body (1). An air outlet groove (42) is opened at the upper end of the airbag seat (41). An inner compartment body (43) is fixedly connected to the rear side of the upper end of the airbag seat (41) near the air outlet groove (42). A connecting ring (44) is fixedly connected to the outer side of the inner compartment body (43). A fixing plate (45) is fixedly connected to the side of the upper end of the airbag seat (41) near the inner compartment body (43). A connecting plate (46) is fixedly connected to the upper end of the fixing plate (45). A docking plate (47) is fixedly connected to the upper end of the connecting plate (46). A pad (48) is fixedly connected to the inner bottom of the airbag seat (41).
2. A corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: The bottom inner side of the airbag seat (41) is fixedly connected to the outer side of the first pad (48) and the bottom inner side of the airbag seat (41) is fixedly connected to the outer side of the second pad (49) and the bottom inner side of the airbag seat (41) is fixedly connected to the outer side of the second pad (49).
3. A corrugated cardboard box with moisture-proof function according to claim 2, characterized in that: There are two sets of air outlet slots (42). The two sets of air outlet slots (42) are located on the airbag seat (41) at the front and rear ends near the inner compartment body (43). The inner compartment body (43) is located inside the corrugated cardboard box body (1).
4. A corrugated cardboard box with moisture-proof function according to claim 2, characterized in that: The connecting ring (44) is located above the airbag seat (41). The outer side of the connecting ring (44) is fixedly connected to the inner wall of the corrugated carton body (1). The connecting plate (46) is wavy in shape. The upper end of the mating plate (47) is fixedly connected to the lower end of the connecting ring (44).
5. A corrugated cardboard box with moisture-proof function according to claim 2, characterized in that: The number of fixed plates (45), connecting plates (46), and docking plates (47) are all in multiple sets, and the main body material of the first pad (48), the second pad (49), and the third pad (410) is elastic rubber.
6. A corrugated cardboard box with moisture-proof function according to claim 1, characterized in that: The upper end of the corrugated cardboard box body (1) is fixedly connected to a main side cover plate (2), and the upper end of the corrugated cardboard box body (1) is fixedly connected to a secondary side cover plate (3) near the rear side of the main side cover plate (2). There are two sets of both the main side cover plate (2) and the secondary side cover plate (3).