Leakage-proof and waterproof packaging carton

By setting plastic buckles and a waterproof membrane layer on the bottom of the packaging carton, combined with a strapping fixing structure, the problem of poor waterproof effect of the carton is solved, achieving better waterproof performance and stability, and preventing the carton from being damaged and leaking.

CN223534034UActive Publication Date: 2025-11-11LONGKOU CHENGMU PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202422714515.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-11
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing cardboard boxes are not waterproof and easily get wet when placed directly on the ground, causing damage and leakage of contents.

Method used

The design incorporates plastic buckles and a waterproof membrane. The plastic buckles are symmetrically fastened to the bottom of the packaging box, and the positioning strips on the inner side are fastened into the vertical side grooves. The waterproof membrane is set on the inner and outer sides, and together with the fixing structure of the wrap-around straps and binding straps, multiple layers of waterproof protection are formed.

Benefits of technology

It effectively isolates the cardboard box from external water, improves its waterproof performance, enhances its overall stability, prevents tears and leakage, and ensures the safety of the goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a leakproof and waterproof packaging carton, which relates to the field of packaging cartons, and comprises a packaging carton body, plastic buckle blocks are symmetrically buckled on the bottom surface of the packaging carton body, side binding belts are fixedly arranged on the top surfaces of the plastic buckle blocks, one end of each side binding belt is fixedly connected with an end buckle body, and the other end of each side binding belt is fixedly connected with an end buckle body. Sealing cover plates are horizontally and symmetrically arranged on the top face of the packaging box body, the outer side edge of the packaging box body is sleeved with a surrounding binding belt, the side edge of the surrounding binding belt is horizontally and fixedly connected with a connecting transverse belt, one end of the surrounding binding belt is fixedly connected with a butt joint end, and the butt joint end is fixedly connected with a connecting rod. A mounting end is fixedly connected to the end, away from the butt joint end, of the surrounding bandage, positioning clamping strips are symmetrically and fixedly arranged on the inner side edge of the plastic buckle block, vertical side grooves are symmetrically formed in the two side edges of the packaging box body, a binding and wrapping type structure is adopted, so that the overall stability of the packaging box is better, and the situation of cracking and material leakage is avoided; and meanwhile, the waterproof effect is better under the multiple waterproof structures.
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Description

Technical Field

[0001] This utility model relates to the field of packaging carton technology, specifically a leak-proof and waterproof packaging carton. Background Technology

[0002] Packaging cartons are made of paper products and are used to package various items. They are divided into single-wall (3-ply), double-wall (5-ply), triple-wall (7-ply), and quadruple-wall (9-ply) cartons. Cartons are further subdivided into paper boxes, color boxes, color cartons, and extra-large, oddly shaped die-cut boxes, etc.

[0003] Current packaging cartons, due to their simple cardboard structure, are not very waterproof. If placed directly on the ground, water will soak into the cartons, causing them to break and leak their contents, which is detrimental to their use. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof and waterproof packaging carton to solve the problem mentioned in the background art that the current packaging cartons, due to their simple carton structure, have poor waterproof performance when used. When placed directly on the ground, water stains from the ground will soak the carton, causing it to break and leak its contents, which is detrimental to the use of current packaging.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A leak-proof and waterproof packaging carton includes a carton body. Plastic fasteners are symmetrically fastened to the bottom of the carton body. Side binding straps are fixedly installed on the top surface of the plastic fasteners. One end of each side binding strap is fixedly connected to an end clip. A sealing cover is horizontally and symmetrically installed on the top surface of the carton body. A wraparound strap is fitted around the outer edge of the carton body. A connecting cross strap is horizontally fixedly connected to the side of the wraparound strap. A butt joint is fixedly connected to one end of the wraparound strap. An installation end is fixedly connected to the end of the wraparound strap away from the butt joint. Positioning strips are symmetrically fixed to the inner edge of the plastic fasteners. Vertical side grooves are symmetrically formed on both sides of the carton body. A clip is fixedly installed at the end of the butt joint away from the wraparound strap. An installation end groove is formed at one end of the installation end. Installation side grooves are formed on one side of both the butt joint and the installation end. A waterproof membrane layer is fixedly adhered to both the inner and outer edges of the carton body.

[0007] As a preferred embodiment of this utility model: the packaging box is made of paper material, and the top surface of the packaging box is open. There are two plastic buckles, and both plastic buckles are made of hard plastic material. The two plastic buckles are arranged in parallel to each other and are symmetrically fastened in a U-shape on both sides of the bottom surface of the packaging box.

[0008] As a preferred embodiment of this utility model: the number of side binding straps is four, and the four side binding straps are fixedly fixed in pairs in parallel and symmetrically on the top surface of the plastic buckle block. The side binding straps are all bound to both sides of the packaging box, and one end of the end buckle is correspondingly snapped into the inner side of the mounting side groove.

[0009] In a preferred embodiment of this utility model: the sealing cover is made of the same material as the packaging box, and the sealing cover is horizontally and symmetrically arranged inside the top opening of the packaging box. There are two wrap-around straps, and the two wrap-around straps are arranged in parallel with each other. The two wrap-around straps are sleeved on the outer side of the packaging box, and the two connecting cross straps are arranged in parallel and symmetrical on both sides of the packaging box.

[0010] In a preferred embodiment of this utility model: one end of the docking end is horizontally docked at one end of the mounting end, and the bottom surfaces of the docking end and the mounting end are horizontally docked at the top surface of the sealing cover. The positioning clips are vertically symmetrically fixed at the center line of the two inner sides of the plastic buckle, and the positioning clips are vertically engaged with the inner side of the vertical side groove.

[0011] As a preferred embodiment of this utility model: the vertical side grooves are symmetrically opened on both sides of the packaging box near the bottom corner, and the bottom end of the vertical side groove extends through the bottom surface of the packaging box to the outside in an open shape. One end of the buckle head is snapped into the inner side of the mounting end groove. The waterproof membrane layer is made of waterproof membrane material, and the side of the waterproof membrane layer is fixedly bonded to the outer and inner sides of the packaging box by adhesive.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model symmetrically attaches two plastic fasteners to both ends of the bottom surface of the packaging box. These fasteners are then secured within vertical side grooves by positioning clips on the inner side. When the packaging box is placed on the ground, the plastic fasteners on the bottom rest on the ground, maintaining a designated distance between the packaging box and the ground, preventing water from soaking the packaging box. Furthermore, waterproof membrane layers are provided on both the inner and outer sides of the packaging box, effectively isolating it from external water and preventing the cardboard box itself from becoming wet. After the material is placed inside the packaging box, the wrapping straps are flipped over and wrapped around the outside of the packaging box. One end of the buckle is then engaged and fixed inside the mounting groove, thus securing both sides of the packaging box. Simultaneously, after flipping the side straps, one end of the buckle is engaged and fixed inside the mounting groove, protecting the other two sides of the packaging box. This wrapping structure improves overall stability and prevents leaks, while the multiple waterproof layers enhance waterproofing. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 A three-dimensional structural diagram of a leak-proof and waterproof packaging carton;

[0016] Figure 2 A structural schematic diagram showing the connection details of a plastic buckle block for a leak-proof and waterproof packaging carton, viewed from the front section.

[0017] Figure 3 A structural schematic diagram showing the connection details of a front cross-section of a leak-proof and waterproof packaging carton;

[0018] Figure 4 This is a structural diagram showing the details of the cross-sectional connection of a leak-proof and waterproof packaging carton.

[0019] In the diagram: 1. Packaging box body; 2. Plastic buckle block; 3. Side binding strap; 4. End buckle body; 5. Sealing cover plate; 6. Wrapping strap; 7. Connecting cross strap; 8. Butt joint end; 9. Installation end; 10. Positioning strip; 11. Vertical side groove; 12. Buckle head; 13. Installation end groove; 14. Installation side groove; 15. Waterproof membrane layer. Detailed Implementation

[0020] Please see Figure 1In this embodiment of the present invention, a leak-proof and waterproof packaging carton includes a packaging box body 1. Plastic fasteners 2 are symmetrically fastened to the bottom surface of the packaging box body 1. The packaging box body 1 is made of paper material, and its top surface is open. There are two plastic fasteners 2, both made of rigid plastic material, arranged parallel to each other. The two plastic fasteners 2 are symmetrically fastened in a U-shape on both sides of the bottom surface of the packaging box body 1. Side binding straps 3 are fixedly installed on the top surface of the plastic fasteners 2. One end of each side binding strap 3 is fixedly connected to an end buckle 4. There are four side binding straps 3, arranged in pairs, symmetrically and parallel to each other on the top surface of the plastic fasteners 2. The side binding straps 3 are all bound to both sides of the packaging box body 1. One end of each end buckle 4 is correspondingly fastened to the mounting side groove 14. On the inner side, a sealing cover plate 5 is horizontally and symmetrically arranged on the top surface of the packaging box 1. A wrapping strap 6 is sleeved on the outer side of the packaging box 1. A connecting horizontal strap 7 is horizontally and fixedly connected to the side of the wrapping strap 6. The sealing cover plate 5 is made of the same material as the packaging box 1 and is horizontally and symmetrically arranged on the inner side of the top opening of the packaging box 1. There are two wrapping straps 6, and the two wrapping straps 6 are arranged in parallel with each other. The two wrapping straps 6 are sleeved on the outer side of the packaging box 1. The two connecting horizontal straps 7 are parallel and symmetrically arranged on both sides of the packaging box 1. A docking end 8 is fixedly connected to one end of the wrapping strap 6. An installation end 9 is fixedly connected to the end of the wrapping strap 6 away from the docking end 8. One end of the docking end 8 is horizontally docked at one end of the installation end 9, and the bottom surfaces of the docking end 8 and the installation end 9 are horizontally docked at the top surface of the sealing cover plate 5.

[0021] Please see Figure 2-4 In this embodiment of the utility model, a leak-proof and waterproof packaging carton is provided, wherein positioning strips 10 are symmetrically fixed on the inner side of the plastic buckle block 2. The positioning strips 10 are vertically symmetrically fixed at the center line of the two inner sides of the plastic buckle block 2, and the positioning strips 10 are vertically engaged with the inner side of the vertical side groove 11. The two sides of the packaging carton body 1 are symmetrically provided with vertical side grooves 11. The docking end 8 is fixedly provided with a buckle head 12 at the end away from the wrap-around strap 6. The mounting end 9 is provided with a mounting end groove 13 at one end. The docking end 8 and the mounting end 9 are connected. A mounting side groove 14 is provided on one side of the mounting end 9. A waterproof membrane layer 15 is fixedly bonded to both the inner and outer sides of the packaging box 1. Vertical side grooves 11 are symmetrically opened on both sides of the packaging box 1 near the bottom corner. The bottom end of the vertical side groove 11 extends through the bottom surface of the packaging box 1 to the outside in an open shape. One end of the buckle head 12 is snapped into the inner side of the mounting end groove 13. The waterproof membrane layer 15 is made of waterproof membrane material, and the sides of the waterproof membrane layer 15 are fixedly bonded to the outer and inner sides of the packaging box 1 by adhesive.

[0022] The working principle of this utility model is as follows:

[0023] Two plastic fasteners 2 are symmetrically fastened at both ends of the bottom surface of the packaging box 1. They are then secured inside the vertical side grooves 11 by corresponding positioning clips 10 on the inner side. This completes the installation of the plastic fasteners 2. When the packaging box 1 is placed on the ground, the plastic fasteners 2 on the bottom surface rest on the ground, creating a designated distance between the packaging box 1 and the ground, preventing water stains from the ground from wetting the packaging box 1. Simultaneously, waterproof membrane layers 15 are provided on both the inner and outer sides of the packaging box 1, effectively isolating it from external water. When the water in the packaging box 1 becomes wet, after the material is placed inside the packaging box 1, the wrapping strap 6 is turned over and wrapped around the outer side of the packaging box 1. The buckle head 12 of the connecting end 8 is engaged and fixed inside the mounting end groove 13, forming a wrapping and fixing operation on both sides of the packaging box 1. At the same time, after the side binding strap 3 is turned over, the end buckle body 4 of one end is engaged and fixed inside the mounting side groove 14, thus wrapping and protecting the other two sides of the packaging box 1.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leak-proof and waterproof packaging carton, comprising a packaging carton body (1), characterized in that, The bottom surface of the packaging box (1) is symmetrically fastened with plastic buckles (2), and the top surface of the plastic buckles (2) is fixedly provided with side binding straps (3). One end of the side binding straps (3) is fixedly connected with an end buckle (4). The top surface of the packaging box (1) is horizontally and symmetrically provided with sealing covers (5). The outer side of the packaging box (1) is fitted with a wraparound strap (6), and the side of the wraparound strap (6) is horizontally fixedly connected with a connecting cross strap (7). One end of the wraparound strap (6) is fixedly connected with a mating end (8). The wraparound strap (6) is located away from the mating end (8). One end of the packaging box (1) is fixedly connected to an installation end (9), and the inner side of the plastic buckle (2) is symmetrically fixed with positioning strips (10). The two sides of the packaging box (1) are symmetrically provided with vertical side grooves (11). The docking end (8) is fixedly provided with a buckle head (12) at the end away from the wrapping strap (6). One end of the installation end (9) is provided with an installation end groove (13). The docking end (8) and the installation end (9) are provided with an installation side groove (14). The inner and outer sides of the packaging box (1) are both fixedly bonded with a waterproof membrane layer (15).

2. The leak-proof and waterproof packaging carton according to claim 1, characterized in that, The packaging box (1) is made of paper material and the top surface of the packaging box (1) is open. There are two plastic buckles (2), and both plastic buckles (2) are made of hard plastic material. The two plastic buckles (2) are arranged in parallel to each other and are symmetrically fastened in a U-shape on both sides of the bottom surface of the packaging box (1).

3. A leak-proof and waterproof packaging carton according to claim 1, characterized in that, The number of side binding straps (3) is four, and the four side binding straps (3) are fixedly fixed in pairs in parallel and symmetrically on the top surface of the plastic buckle block (2). The side binding straps (3) are all bound to the two sides of the packaging box (1), and one end of the end buckle body (4) is correspondingly snapped into the inner side of the mounting side groove (14).

4. A leak-proof and waterproof packaging carton according to claim 1, characterized in that, The sealing cover (5) is made of the same material as the packaging box (1), and the sealing cover (5) is horizontally and symmetrically arranged on the inner side of the top opening of the packaging box (1). There are two wrap-around straps (6), and the two wrap-around straps (6) are arranged in parallel with each other. The two wrap-around straps (6) are sleeved on the outer side of the packaging box (1), and the two connecting cross straps (7) are arranged in parallel and symmetrical on both sides of the packaging box (1).

5. A leak-proof and waterproof packaging carton according to claim 1, characterized in that, One end of the docking end (8) is horizontally docked at one end of the mounting end (9), and the bottom surfaces of the docking end (8) and the mounting end (9) are horizontally docked at the top surface of the sealing cover plate (5). The positioning clips (10) are vertically symmetrically fixed at the center line of the two inner sides of the plastic buckle block (2), and the positioning clips (10) are vertically snapped into the inner side of the vertical side groove (11).

6. A leak-proof and waterproof packaging carton according to claim 1, characterized in that, The vertical side grooves (11) are symmetrically opened on both sides of the packaging box (1) near the bottom corner. The bottom end of the vertical side groove (11) extends through the bottom surface of the packaging box (1) to the outside in an open shape. One end of the buckle head (12) is snapped into the inner side of the mounting end groove (13). The waterproof membrane layer (15) is made of waterproof membrane material, and the side of the waterproof membrane layer (15) is fixedly bonded to the outer and inner sides of the packaging box (1) by adhesive.