Leakage-proof and waterproof packaging carton

The paper box design with a waterproof membrane and support structures addresses leakage issues by maintaining membrane integrity, ensuring the box remains dry during item placement.

CN223101420UActive Publication Date: 2025-07-15QINGDAO XIAOSEN PACKAGING CO LTD
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Patent Information

Application Number
CN202422028180.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-07-15
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

When storing bottled liquids, existing packaging cartons are prone to tilt or breaking, causing liquids to leak out, and lack of leakage and waterproofing capabilities.

Method used

A waterproof film bag and triangular support plate structure is designed to provide support through waterproof film through grooves and baffles. The waterproof film covers the inner wall to protect the film bag. The counterweight block and triangular support plate help the film bag unfold, prevent wear and ensure waterproof performance.

Benefits of technology

Effectively prevent liquid leakage, protect the structural integrity of the film bag, ensure waterproof performance, and avoid the squeeze and wear of the film bag when the article is placed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of packaging cartons, and provides a leakproof and waterproof packaging carton which comprises a packaging carton body. The packing box cover is arranged at the top of the packing box body; the waterproof film penetrating groove is formed in the inner side wall of the packaging box body; the baffle is arranged on the inner side wall of the waterproof film penetrating groove, and the baffle and the packaging box body are integrally formed; the waterproof film bag is laid in the packaging box body; the waterproof film is integrally formed at the top of the waterproof film bag; the balancing weight is adhered and fixed at the bottom of the waterproof film bag through an adhesive; space and support are provided for folding and bending of the waterproof film through the waterproof film penetrating groove and the baffle, the waterproof film covers the inner side wall of the waterproof film bag to provide protection for the waterproof film bag, extrusion abrasion to the waterproof film bag when objects are placed in the waterproof film bag is avoided, and the integrity of the structure of the waterproof film bag is guaranteed; therefore, the leakage-proof and waterproof capability of the waterproof film bag is ensured.
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Description

Technical Field

[0001] The utility model belongs to the technical field of packaging cartons, and particularly relates to a leak-proof and waterproof packaging carton. Background Art

[0002] A packaging carton is made of paper products and is a tool for packaging various items. The cartons are subdivided into various types of packaging such as paper boxes, color boxes, color cartons, and over-sized special-shaped beer boxes.

[0003] When storing some bottled liquids in the existing packaging cartons, when the bottled liquids are tilted or even broken by external forces, the liquids directly contact the packaging cartons. The packaging cartons will soften and rupture, causing the liquids to leak out, thus contaminating the items around the packaging cartons. The leak-proof and waterproof ability of the packaging cartons is poor.

[0004] Therefore, a leak-proof and waterproof packaging carton is proposed. Summary of the Utility Model

[0005] The utility model provides a leak-proof and waterproof packaging carton, aiming to solve the above problems.

[0006] The utility model is realized as follows. A leak-proof and waterproof packaging carton includes: a packaging box body; a packaging box cover provided on the top of the packaging box body; a waterproof film through groove opened on the inner side wall of the packaging box body; a baffle provided on the inner side wall of the waterproof film through groove, the baffle and the packaging box body are integrally formed; a waterproof film bag laid inside the packaging box body; a waterproof film integrally formed on the top of the waterproof film bag; a counterweight block adhesively fixed to the bottom of the waterproof film bag through an adhesive; a triangular support plate placed inside the waterproof film bag; a guide plate integrally formed on the top of the triangular support plate.

[0007] Preferably, there are four packaging box covers in total, and the four packaging box covers are symmetrically arranged on the top of the packaging box body. The packaging box body is a hollow cuboid structure with an open top.

[0008] Preferably, the cross-section of the inner side wall line of the waterproof film through groove is arc-shaped.

[0009] Preferably, the waterproof film can pass through the waterproof film through groove.

[0010] Preferably, there are four waterproof films in total, and the four waterproof films are symmetrically arranged on the top of the waterproof film bag.

[0011] Preferably, the cross-section of the triangular support plate is an L-shaped structure, and the cross-section of the guide plate is a right-angled triangle structure.

[0012] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0013] The waterproof film through-groove and the baffle provide space and support for the folding and bending of the waterproof film, and the waterproof film is used to cover the inner side wall of the waterproof film bag to provide protection for it, avoiding the extrusion and abrasion of the waterproof film bag when items are put in, ensuring the integrity of the structure of the waterproof film bag, and further ensuring the leak-proof and waterproof capabilities of the waterproof film bag. The counterweight and the triangular support plate facilitate the full expansion of the waterproof film bag, thereby facilitating the placement of items into the waterproof film bag and the interior of the packaging box body. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a schematic structural view of the packaging box body of the present utility model;

[0016] Figure 3 is a schematic view of the cooperation between the waterproof film bag and the waterproof film of the present utility model;

[0017] Figure 4 is a partial cross-sectional view of the packaging box body of the present utility model;

[0018] Figure 5 is a schematic structural view of the triangular support plate of the present utility model.

[0019] In the figures: 1, packaging box body; 2, packaging box lid; 3, waterproof film through-groove; 4, baffle; 5, waterproof film bag; 6, waterproof film; 7, counterweight; 8, triangular support plate; 9, guide plate. Detailed Description of the Invention

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appearing in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] An embodiment of the utility model provides a leak-proof and waterproof packaging carton, as Figures 1-5 shown, which includes a packaging box body 1. A packaging box lid 2 is arranged at the top of the packaging box body 1. There are four packaging box lids 2 in total, and the four packaging box lids 2 are symmetrically arranged at the top of the packaging box body 1. The packaging box body 1 is a hollow cuboid structure with an open top. A waterproof film through groove 3 is formed on the inner wall of one side of the packaging box body 1. The cross-section of the inner wall line of the waterproof film through groove 3 is arc-shaped. A baffle 4 is arranged on the inner wall of the waterproof film through groove 3. The baffle 4 and the packaging box body 1 are integrally formed. A waterproof film bag 5 is placed inside the packaging box body 1. A waterproof film 6 is integrally formed at the top of the waterproof film bag 5. There are four waterproof films 6 in total, and the four waterproof films 6 are symmetrically arranged at the top of the waterproof film bag 5. A weight block 7 is adhesively fixed to the bottom of the waterproof film bag 5 through an adhesive. A triangular support plate 8 is arranged inside the waterproof film bag 5. A guide plate 9 is integrally formed at the top of the triangular support plate 8, and the triangular support plate 8 and the guide plate 9 are made of plastic.

[0023] It should be noted that when storing some bottled liquids in the existing packaging cartons, when the bottled liquids are tilted or even broken by external forces, the liquids directly contact the packaging cartons. The packaging cartons will soften and break, causing the liquids to leak out, thus contaminating the items around the packaging cartons. The leak-proof and waterproof ability of the packaging cartons is poor. In this embodiment, the waterproof film through groove 3 and the baffle 4 provide space and support for the folding and bending of the waterproof film 6, and the waterproof film 6 is used to cover the inner wall of the waterproof film bag 5 to provide protection for it, avoiding the extrusion and wear of the waterproof film bag 5 when items are put in, ensuring the integrity of the structure of the waterproof film bag 5, and further ensuring the leak-proof and waterproof ability of the waterproof film bag 5. The weight block 7 and the triangular support plate 8 facilitate the full expansion of the waterproof film bag 5, so as to facilitate the items to be put into the waterproof film bag 5 and the inside of the packaging box body 1.

[0024] Specifically, in this embodiment, the solution mainly includes a waterproof film bag 5 and a waterproof film 6. When performing leak-proof and waterproof protection on the packaging box body 1, the waterproof film bag 5 is placed inside the packaging box body 1, and the four counterweight blocks 7 at the bottom of the waterproof film bag 5 are respectively pushed to the four end corners at the bottom inside the packaging box body 1. The waterproof film bag 5 unfolds, and the triangular support plate 8 is placed inside the waterproof film bag 5, and the triangular support plate 8 is used to push the waterproof film bag 5 to fit at the docking corners of the two inner side walls of the packaging box body 1. The waterproof film bag 5 fully opens. The waterproof film 6 passes through the waterproof film slot 3 and exits from above the baffle, and after being bent, the waterproof film 6 is inserted into the waterproof film bag 5. At this time, the waterproof film bag 5 is limited inside the packaging box body 1. When the item is placed inside the packaging box body 1, the item is placed into the waterproof film bag 5, and the item fits and squeezes the waterproof film 6. The presence of the waterproof film 6 reduces the squeezing and abrasion of the item on the waterproof film bag 5, ensuring the integrity of the structure of the waterproof film bag 5, and thus ensuring the leak-proof and waterproof ability of the waterproof film bag 5.

[0025] In a further preferred embodiment of the present utility model, as Figures 2-4 shown, the waterproof film 6 can penetrate through the waterproof film slot 3.

[0026] In this embodiment, by folding the waterproof film 6 in half after passing through the waterproof film slot 3, the waterproof film 6 can cover the inner side wall of the waterproof film bag 5, thereby protecting the waterproof film bag 5 and avoiding the squeezing, abrasion, pulling and deformation of the waterproof film bag 5 when an item matching the internal space of the packaging box body 1 is placed, ensuring the structural integrity of the waterproof film bag 5.

[0027] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 5 shown, the cross-section of the triangular support plate 8 is an L-shaped structure, and the cross-section of the guide plate 9 is a right-angled triangle structure.

[0028] In this embodiment, the L-shaped triangular support plate 8 can make the waterproof film bag 5 fit at the docking corners of the two inner side walls of the packaging box body 1, facilitating the full opening of the waterproof film bag 5.

[0029] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be in other sequences or carried out simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0030] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0031] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A leak-proof and waterproof packaging carton, characterized in that, Including: The packing box body (1); The packing box lid (2) provided on the top of the packing box body (1); and The waterproof film through groove (3) opened on the inner side wall of the packing box body (1); The baffle (4) provided on the inner side wall of the waterproof film through groove (3), and the baffle (4) is integrally formed with the packing box body (1); The waterproof film bag (5) laid inside the packing box body (1); The waterproof film (6) integrally formed on the top of the waterproof film bag (5); and The counterweight (7) adhesively fixed to the bottom of the waterproof film bag (5) through an adhesive; The triangular support plate (8) placed inside the waterproof film bag (5); The guide plate (9) integrally formed on the top of the triangular support plate (8).

2. The leak-proof and waterproof packaging carton according to claim 1, wherein, There are four packing box lids (2) in total, and the four packing box lids (2) are symmetrically arranged on the top of the packing box body (1), and the packing box body (1) is a hollow cuboid structure with an open top.

3. The leak-proof and waterproof packaging carton according to claim 1, characterized in that, The cross-section of the inner side wall line of the waterproof film through groove (3) is arc-shaped.

4. The leak-proof and waterproof packaging carton according to claim 1, wherein The waterproof film (6) can pass through the waterproof film through groove (3).

5. A leak-proof and waterproof packaging carton according to claim 1, wherein, There are four waterproof films (6) in total, and the four waterproof films (6) are symmetrically arranged on the top of the waterproof film bag (5).

6. The leak-proof and waterproof packaging carton according to claim 1, characterized in that, The cross-section of the triangular support plate (8) is an L-shaped structure, and the cross-section of the guide plate (9) is a right-angled triangle structure.