A moisture-proof carton

Abstract

The utility model discloses a kind of moisture-proof carton, including carton body and box cover, box cover is set in carton body top end;Two ends of four inner side walls of carton body are fixedly connected with first limit plate, first limit plate is vertically arranged along carton body inner wall, four corners of carton body are provided with rectangular filling cylinder, two first limit plates in each corner are in contact with the two side walls of rectangular filling cylinder, and the other two side walls of rectangular filling cylinder are in contact with the inner wall of carton body;Desiccant is filled in each rectangular filling cylinder, and moisture-proof assembly is provided at the bottom end of the outer wall of carton body.The utility model can absorb the moisture in the carton, avoid the internal commodity from being damaged by damp in damp environment, and improve the moisture-proof performance of carton.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, and in particular to a moisture-proof cardboard box. Background Technology

[0002] Cardboard boxes are paper packaging containers made primarily from paper pulp. Due to their lightweight, ease of processing, low cost, and recyclability, they have become one of the most widely used packaging forms in modern logistics, warehousing, and commodity circulation. They are typically formed through processes such as die-cutting, creasing, stapling, or gluing, and can be designed into different sizes and shapes to meet various needs. They effectively protect the contents from compression and impact, while also facilitating stacking, storage, and transportation.

[0003] Existing moisture-proof cardboard boxes typically consist of a waterproof film laminated onto each piece of cardboard. While this protects the cardboard from moisture and prevents it from becoming damp and weakening its compressive strength, it does not protect the goods inside. Moist air entering the box can cause problems such as short circuits in electronic products, rust on hardware, mildew on clothing, and deformation of paper. For example, the utility model patent with authorization announcement number CN222432954U discloses a double-layer coated moisture-proof cardboard box, including a cardboard body. The cardboard body consists of an outer moisture-proof layer, a cardboard layer, and an inner moisture-proof layer from top to bottom. The outer moisture-proof layer is a PE film with pits on its surface and moisture-proof particles inside the pits. The cardboard body includes a base plate, a first side plate, a second side plate, a third side plate, and a fourth side plate. The first side plate, the second side plate, the third side plate, and the fourth side plate are connected to the four sides of the base plate clockwise. The second side plate and the fourth side plate have insertion notches on their surfaces. Extension strips are formed on both sides of the first side plate and the third side plate. The extension strips extend into the insertion notches and are connected to the inner walls of the second side plate and the fourth side plate or two adjacent extension strips are connected.

[0004] Although the aforementioned utility model patent uses a composite structure of PE film and moisture-proof particles to support the outer moisture-proof layer, resulting in moisture-proof particles on one surface of the PE film, and the outer surface of the cardboard layer has moisture-proof function after the outer moisture-proof layer is laminated onto the cardboard layer, in actual use, under humid conditions, external moisture can enter the inside of the cardboard box through the gaps, damaging the items inside.

[0005] Therefore, a moisture-proof cardboard box needs to be developed to address the aforementioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a moisture-proof cardboard box that can absorb moisture inside the box, prevent the goods inside from getting damp and damaged in a humid environment, and improve the moisture-proof performance of the cardboard box.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model discloses a moisture-proof cardboard box, comprising a box body and a lid, the lid being disposed at the top of the box body; each of the four inner side walls of the box body is fixedly connected to both ends of a first limiting plate, the first limiting plate being vertically disposed along the inner wall of the box body; each of the four corners of the box body is provided with a rectangular filling cylinder, the two first limiting plates at each corner being in contact with the two side walls of the rectangular filling cylinder, and the other two side walls of the rectangular filling cylinder being in contact with the inner wall of the box body; each rectangular filling cylinder is filled with desiccant, and a moisture-proof component is disposed at the bottom of the outer wall of the box body.

[0009] Furthermore, the moisture-proof component includes a rectangular bottom frame, which is fixedly connected to the bottom surface of the carton body, and a plurality of support pads are fixedly connected to the bottom surface of the rectangular bottom frame.

[0010] Furthermore, L-shaped protective plates are fixedly connected to the four corners of the top surface of the rectangular bottom frame, and the L-shaped protective plates are fixedly connected to the inner wall of the carton body.

[0011] Furthermore, the rectangular base frame, support pad, and L-shaped guard plate are all made of plastic.

[0012] Furthermore, the inner wall of the rectangular filling cylinder is provided with several ventilation holes.

[0013] Furthermore, a second limiting plate is fixedly connected to the corner of each of the two outer side walls of the rectangular filling cylinder that do not contact the carton body, and an air column bag is provided on the inner side wall of each carton body, with the two ends of the air column bag being clamped between the second limiting plate and the inner wall of the carton body.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] This invention features rectangular desiccant-filled cylinders at the four corners of the cardboard box, which actively absorb humid air entering the box, preventing damage to the goods inside in damp environments and improving the box's moisture-proof performance. Simultaneously, a moisture-proof component at the bottom of the outer wall of the box separates the bottom from the ground, preventing moisture or water from directly wetting the bottom of the box, further enhancing its moisture-proof performance. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the moisture-proof cardboard box of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the moisture-proof cardboard box of this utility model from another perspective.

[0020] Explanation of reference numerals in the attached drawings: 1. Carton body; 2. Carton lid; 3. First limiting plate; 4. Rectangular filling cylinder; 5. Moisture-proof component; 501. Rectangular bottom frame; 502. Support pad; 503. L-shaped protective plate; 6. Ventilation hole; 7. Second limiting plate; 8. Air column bag. Detailed Implementation

[0021] The core of this utility model is to provide a moisture-proof cardboard box that can absorb moisture inside the box, prevent the goods inside from getting damp and damaged in a humid environment, and improve the moisture-proof performance of the cardboard box.

[0022] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In one specific embodiment of this utility model, such as Figure 1 and Figure 2As shown, the box includes a carton body 1 and a lid 2, with the lid 2 positioned at the top of the carton body 1. First limiting plates 3 are fixedly connected to both ends of the four inner side walls of the carton body 1, and are vertically arranged along the inner walls of the carton body 1. Rectangular filling cylinders 4 are located at the four corners of the carton body 1. Two of the first limiting plates 3 at each corner contact the two side walls of the rectangular filling cylinder 4, while the other two side walls of the rectangular filling cylinder 4 contact the inner wall of the carton body 1. The first limiting plates 3 limit and fix the rectangular filling cylinders 4, preventing them from moving during transportation. Each rectangular filling cylinder 4 is filled with desiccant, which can be placed in a gauze bag before being filled into the filling cylinder 4 to prevent spillage. This absorbs humid air inside the carton body 1, providing moisture protection. A moisture-proof component 5 is located at the bottom of the outer wall of the carton body 1 to prevent direct contact between the carton body 1 and the ground, thus preventing ground moisture or water from directly contacting the bottom surface of the carton body 1 and further enhancing its moisture-proof performance.

[0025] In one specific embodiment of this utility model, such as Figure 3 As shown, the moisture-proof component 5 includes a rectangular bottom frame 501, which is fixedly connected to the bottom surface of the carton body 1. Several support pads 502 are fixedly connected to the bottom surface of the rectangular bottom frame 501.

[0026] The rectangular base frame 501 enhances the structural strength of the bottom surface of the carton body 1, and also disperses the force on the bottom surface of the carton body 1 when the support pad 502 lifts the carton and separates it from the ground. The support pad 502 can separate the carton from the ground at a certain distance, preventing the bottom surface of the carton body 1 from directly contacting the damp ground and reducing the intrusion of ground moisture.

[0027] Specifically, L-shaped protective plates 503 are fixedly connected to the four corners of the top surface of the rectangular base frame 501, and the L-shaped protective plates 503 are fixedly connected to the inner wall of the carton body 1.

[0028] The L-shaped protective plate 503 enhances the structural strength of the corners of the carton.

[0029] Specifically, the rectangular bottom frame 501, the support pad 502, and the L-shaped protective plate 503 are all made of plastic. Plastic has good moisture-proof properties, which can effectively prevent ground moisture from penetrating into the inside of the carton through the bottom. At the same time, the high strength of plastic can improve the support and protection of the moisture-proof component 5 and extend the service life of the carton.

[0030] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the inner wall of the rectangular filling cylinder 4 has several ventilation holes 6.

[0031] The ventilation holes 6 allow the desiccant inside the rectangular filling cylinder 4 to fully contact the air inside the carton, thereby better absorbing moisture from the air, enhancing the moisture-proof effect, and ensuring that the inside of the carton remains dry.

[0032] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a second limiting plate 7 is fixedly connected to the corners of the two outer side walls of the rectangular filling cylinder 4 that do not contact the carton body 1. An air column bag 8 is provided on the inner side wall of each carton body 1, with both ends of the air column bag 8 clamped between the second limiting plate 7 and the inner wall of the carton body 1. When filled with gas, the air column bag 8 has good cushioning performance, protecting the items inside the carton and preventing damage from collisions during transportation. The second limiting plate 7 cooperates with the inner wall of the carton body 1 to limit and fix the air column bag 8, preventing displacement and ensuring the cushioning effect.

[0033] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A moisture-proof cardboard box, characterized in that: The carton includes a carton body (1) and a lid (2), the lid (2) being located at the top of the carton body (1); a first limiting plate (3) is fixedly connected to both ends of the four inner side walls of the carton body (1), the first limiting plate (3) being vertically arranged along the inner wall of the carton body (1), a rectangular filling cylinder (4) being provided at each of the four corners of the carton body (1), the two first limiting plates (3) at each corner being in contact with the two side walls of the rectangular filling cylinder (4), and the other two side walls of the rectangular filling cylinder (4) being in contact with the inner wall of the carton body (1); each rectangular filling cylinder (4) is filled with desiccant, and a moisture-proof component (5) is provided at the bottom of the outer wall of the carton body (1).

2. The moisture-proof cardboard box according to claim 1, characterized in that: The moisture-proof component (5) includes a rectangular bottom frame (501), which is fixedly connected to the bottom surface of the carton body (1), and a number of support pads (502) are fixedly connected to the bottom surface of the rectangular bottom frame (501).

3. The moisture-proof cardboard box according to claim 2, characterized in that: L-shaped protective plates (503) are fixedly connected to the four corners of the top surface of the rectangular bottom frame (501), and the L-shaped protective plates (503) are fixedly connected to the inner wall of the carton body (1).

4. The moisture-proof cardboard box according to claim 3, characterized in that: The rectangular base frame (501), support pad (502), and L-shaped guard plate (503) are all made of plastic.

5. The moisture-proof cardboard box according to claim 1, characterized in that: The inner wall of the rectangular filling cylinder (4) is provided with several ventilation holes (6).

6. The moisture-proof cardboard box according to claim 1, characterized in that: The rectangular filling cylinder (4) is fixedly connected to the corners of the two outer side walls that do not contact the carton body (1). Each carton body (1) is provided with an air column bag (8) on its inner side wall. The two ends of the air column bag (8) are clamped by the second limiting plate (7) and the inner wall of the carton body (1).

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