Carton provided with waterproof and oil-proof lining

By installing waterproof and oil-proof inner lining bags and positioning support frames inside the cardboard boxes, the problems of contamination and deformation when storing oily items are solved, and waterproofing, oil resistance, and load-bearing capacity are improved.

CN224117849UActive Publication Date: 2026-04-14浙江兰溪中电电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Cardboard boxes are easily contaminated or deformed when storing items that are wet or oily, which affects their lifespan and load-bearing capacity.

Method used

The carton is equipped with a waterproof and oil-proof inner liner bag and a positioning support frame. The inner liner bag is made of plastic film, and the positioning support frame is made of engineering plastic material. The inner liner bag is fixed and the support frame is installed through positioning grooves, holes and positioning channels, providing vertical and horizontal support.

Benefits of technology

It effectively prevents oil and water stains from contaminating the inner wall of the cardboard box, increases the load-bearing capacity of the cardboard box, prevents deformation, and facilitates the handling of items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The carton comprises a carton body, a supporting frame and a lining bag, the supporting frame is installed on the opening end face of the carton body, the lining bag is arranged in the carton body, a plurality of positioning grooves are formed in the two sides of the supporting frame in the length direction, positioning blocks are installed on the two sides of the lining bag in the length direction, and the positioning grooves are matched with the positioning blocks. A plurality of grooves are formed in the two sides of the supporting frame in the width direction, a plurality of channels communicated with the grooves are formed in the inner side face of the box body, a plurality of groove bodies are installed at the positions, right opposite to the channels, of the two sides of the lining bag in the width direction, a positioning channel is formed between each groove body and the lining bag, and a positioning supporting frame is inserted into each positioning channel. The paper box is simple in structure, the lining bag is arranged in the box body and pulled open outwards, so that the interior of the lining bag is fully opened, articles are convenient to take and place, and oil stains or water stains carried on the articles are prevented from being in contact with the inner wall of the paper box through the lining bag.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, specifically to a cardboard box equipped with a waterproof and oil-proof inner lining. Background Technology

[0002] Cardboard boxes are a common type of packaging container, widely used in logistics, warehousing, transportation, and retail. They are mainly made of cardboard and are characterized by being lightweight, environmentally friendly, and customizable.

[0003] Currently, cardboard boxes have a simple structure and lack internal protection. When storing items with water or oil, the inside of the cardboard box is easily contaminated or deformed due to water stains, which affects the service life of the cardboard box and reduces its load-bearing capacity. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a cardboard box with a waterproof and oil-proof liner, and the inside of the box is provided with an inner liner bag and an assembly positioning support frame, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a cardboard box with a waterproof and oil-proof inner lining, comprising a box body, a support frame, and an inner lining bag. The support frame is installed on the open end face of the box body, and the inner lining bag is disposed inside the box body. Multiple positioning grooves are provided on both sides of the support frame along its length direction, and positioning blocks are installed on both sides of the inner lining bag along its length direction. The positioning blocks are inserted into the positioning grooves. Multiple grooves are provided on both sides of the support frame along its width direction, and multiple channels communicating with the grooves are provided on the inner side of the box body. Multiple slots are installed on both sides of the inner lining bag along its width direction, opposite to the channels. Positioning channels are formed between the slots and the inner lining bag, and positioning support frames are inserted into the positioning channels.

[0006] As a preferred technical solution, the bottom surface of the positioning groove is provided with insertion holes, and the inner side of the positioning block protrudes to form an insertion post opposite the insertion hole. The insertion posts are all inserted into the insertion holes, and the top surfaces of the positioning block, support frame and positioning support frame are flush.

[0007] As a preferred technical solution, the positioning support frame is arranged in a "U" shape. One side of the positioning support frame is set in the groove. One side of the positioning support frame is inserted into the positioning channel, and the other side is set to the outside. The end face of one side of the positioning support frame is flush with the bottom surface of the box.

[0008] As a preferred technical solution, lids are installed on both sides of the box opening.

[0009] As a preferred technical solution, the inner liner bag is made of plastic film, and the cross-section of the inner liner bag is set in a rectangular structure.

[0010] As a preferred technical solution, both the positioning support frame and the support frame are made of engineering plastic materials.

[0011] As a preferred technical solution, the outer side of the inner lining bag is fitted to the inner side of the box.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure, the inside of the box is provided with an inner lining bag, and the inner lining bag is pulled outward to fully open the inside of the inner lining bag, which facilitates the loading and unloading of items. The inner lining bag also prevents oil or water stains on the items from coming into contact with the inner wall of the carton. The positioning support frame can provide support for the box body while the inner lining bag is pulled open, increasing the load-bearing capacity. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after removing any positioning support frame and positioning block;

[0016] Figure 3 This is a schematic diagram of the structure of the box body of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the inner lining bag of this utility model.

[0018] The components are: 1. Box body; 2. Inner liner bag; 3. Positioning support frame; 4. Positioning block; 5. Support frame; 6. Box cover; 7. Groove; 8. Positioning slot; 9. Insertion hole; 10. Positioning channel; 11. Slot; 12. Insertion post. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a cardboard box with a waterproof and oil-proof liner according to this utility model includes a box body 1, a support frame 5, and an inner liner bag 2. The support frame 5 is installed on the open end face of the box body 1, and the inner liner bag 2 is disposed inside the box body 1. Multiple positioning grooves 8 are provided on both sides of the support frame 5 in the length direction. Positioning blocks 4 are installed on both sides of the inner liner bag 2 in the length direction and are inserted into the positioning grooves 8. Multiple grooves 7 are provided on both sides of the support frame 5 in the width direction. Multiple channels communicating with the grooves 7 are provided on the inner side of the box body 1. Multiple slots 11 are installed on both sides of the inner liner bag 2 in the width direction opposite to the channels. Positioning channels 10 are formed between the slots 11 and the inner liner bag 2. Positioning support frames 3 are inserted into the positioning channels 10.

[0023] In this embodiment, the bottom surface of the positioning groove 8 is provided with insertion holes 9, and the inner side of the positioning block 4 protrudes to form insertion posts 12 opposite to the insertion holes 9. The insertion posts 12 are all inserted into the insertion holes 9. The top surfaces of the positioning block 4, the support frame 5 and the positioning support frame 3 are flush.

[0024] In this embodiment, the positioning support frame 3 is arranged in a "U" shape. One side of the positioning support frame 3 is arranged in the groove 7. One side of the positioning support frame 3 is inserted into the positioning channel 10, and the other side is arranged to the outside. The end face of one side of the positioning support frame 3 is flush with the bottom surface of the box 1.

[0025] In this embodiment, lids 6 are installed on both sides of the opening of the box 1. After the items are placed, the lids can be closed and sealed with glue.

[0026] In this embodiment, the inner liner bag 2 is made of plastic film, and the cross-section of the inner liner bag 2 is set in a rectangular structure so that the inner liner bag can conform to the shape of the inner cavity of the box. The plastic film can effectively block moisture and prevent the carton from getting damp or the contents from getting wet. It can also prevent grease from penetrating, making it suitable for packaging oily foods or oily products.

[0027] In this embodiment, both the positioning support frame 3 and the support frame 5 are made of engineering plastic material, which increases the sturdiness. The positioning support frame can provide vertical load-bearing for the box, while the support frame can provide lateral load-bearing for the box, thus preventing deformation of the box opening.

[0028] In this embodiment, the outer side of the inner lining bag 2 is fitted to the inner side of the box body 1, so that the inner lining bag can be fully opened, making it convenient to put in and take out items.

[0029] During installation, the inner lining bag is placed into the box. The positioning blocks on the inner lining bag can be inserted into the positioning grooves, and the inserts can be inserted into the insertion holes. The inserts and insertion holes can position the openings on both sides along the length of the inner lining bag. The groove on the inner lining bag can enter the positioning channel. After the positioning support frame is inserted into the groove along the groove, the positioning support frame can pull the inner lining bag outward, so that the outer side of the inner lining bag can fit against the inner side of the box, allowing the inner cavity of the inner lining bag to be fully opened, which facilitates the differentiation of items. In addition, the positioning support frame can provide vertical support for the box, preventing deformation of the box caused by placing items on top of it, and increasing the load-bearing capacity.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A cardboard box equipped with a waterproof and oil-proof inner lining, characterized in that: The box includes a box body (1), a support frame (5), and an inner liner bag (2). The support frame (5) is installed on the open end face of the box body (1), and the inner liner bag (2) is placed inside the box body (1). The support frame (5) has multiple positioning grooves (8) on both sides in the length direction. The inner liner bag (2) has positioning blocks (4) installed on both sides in the length direction. The positioning blocks (4) are inserted into the positioning grooves (8). The support frame (5) has multiple grooves (7) on both sides in the width direction. The inner side of the box body (1) has multiple channels communicating with the grooves (7). The inner liner bag (2) has multiple grooves (11) installed on both sides in the width direction opposite to the channels. The grooves (11) and the inner liner bag (2) form positioning channels (10). A positioning support frame (3) is inserted into the positioning channel (10).

2. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: The bottom surface of the positioning groove (8) is provided with insertion holes (9). The inner side of the positioning block (4) protrudes to form insertion posts (12) opposite to the insertion holes (9). The insertion posts (12) are all inserted into the insertion holes (9). The top surfaces of the positioning block (4), the support frame (5) and the positioning support frame (3) are flush.

3. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: The positioning support frame (3) is set in a "U" shape. One side of the positioning support frame (3) is set in the groove (7). One side of the positioning support frame (3) is inserted into the positioning channel (10), and the other side is set to the outside. The end face of one side of the positioning support frame (3) is flush with the bottom surface of the box (1).

4. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: Box covers (6) are installed on both sides of the opening of the box (1).

5. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: The inner liner bag (2) is made of plastic film, and the cross-section of the inner liner bag (2) is set in a rectangular structure.

6. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: The positioning support frame (3) and the support frame (5) are both made of engineering plastic materials.

7. The cardboard box with a waterproof and oil-proof liner according to claim 1, characterized in that: The outer side of the inner lining bag (2) is fitted to the inner side of the box body (1).