Carton structure with good waterproof effect

By setting a PE waterproof layer and an inner wall waterproof lining on the outer wall of the carton, and using the combined structure of the limiting plate and the bottom frame to isolate moisture, the problem of the carton absorbing water and moisture in rainy days is solved, and the waterproof effect and support strength of the carton are improved.

CN223238272UActive Publication Date: 2025-08-19ZIGUI RONGHUA COLOR PACKAGE PRINTING CO LTD
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Patent Information

Application Number
CN202422190648.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-08-19
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

The existing carton has poor waterproofing effect and is prone to absorb water and gets moisture on rainy days, resulting in a decrease in support strength, which is not conducive to the storage and transportation of items.

Method used

A PE waterproof layer is provided on the outer side wall of the carton body, and a waterproof lining is provided on the inner side wall. The carton is isolated from the ground through a combined structure of the limiting plate, bottom frame, slide rod, tie rod and spring to prevent moisture from entering, and combined with a water-absorbing sponge to absorb internal water vapor.

Benefits of technology

Effectively prevent the carton from absorbing water and getting damp in rainy days, strengthening the support strength of the carton, and ensuring the normal storage and transportation of items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of carton structures, and discloses a carton structure with a good waterproof effect, which comprises a PE waterproof layer arranged on the outer side wall of a carton body; the waterproof lining is arranged on the inner side wall of the carton body; the limiting plates are symmetrically arranged on the outer side wall of the bottom plate; the bottom frame is movably arranged at the bottom of the bottom plate. The PE waterproof layer outside the carton body and the waterproof lining inside the carton body protect the inside and outside of the carton body at the same time, the bottom plate supports the bottom of the carton body, the durability of the bottom is enhanced, a worker places the carton body in the bottom frame, and after limiting plates on the two sides of the bottom plate make contact with inclined faces of limiting blocks at the bottom, the limiting blocks are pushed to one side of a spring; when the bottom of the bottom plate makes contact with the inner bottom face of the bottom frame, the springs push the limiting blocks to move towards the tops of the limiting plates, vertical movement of the limiting plates is limited, the carton body is isolated from the ground at the moment, and it is avoided that the bottom of the carton body is affected with damp due to water inflow, and the supporting strength of the carton body is affected.
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Description

Technical Field

[0001] The utility model relates to the technical field of carton structures, in particular to a carton structure with good waterproof effect. Background Art

[0002] Cartons are the most widely used packaging products. Depending on the materials used, there are corrugated boxes, single-layer cardboard boxes, etc., with various specifications and models. Commonly used cartons are three-layer and five-layer, and seven-layer are less used. Each layer is divided into lining paper, corrugated paper, core paper, and face paper. The lining and face paper are tea board paper and kraft paper, and the core paper is corrugated paper. The color and feel of various papers are different, and the papers produced by different manufacturers are also different.

[0003] Existing cartons have poor waterproof effects and are easily affected by the weather on rainy days, causing them to absorb water and become damp, resulting in a significant decrease in supporting strength, which is not conducive to the storage and transportation of items and also increases the cost of using corrugated cartons. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a carton structure with good waterproof effect, which has the advantage of good waterproof effect and solves the problem that the existing carton easily absorbs water and gets damp in rainy weather, thereby reducing the supporting strength of the carton and making it inconvenient to place and transport subsequent items.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a carton structure with good waterproof effect, comprising a carton body, on which a waterproof component is provided, wherein the waterproof component comprises:

[0008] A PE waterproof layer is provided on the outer side wall of the carton body;

[0009] A waterproof lining is provided on the inner side wall of the carton body;

[0010] A bottom plate, fixedly connected to the bottom of the carton body;

[0011] A limiting plate is symmetrically arranged on the outer side wall of the bottom plate;

[0012] A bottom frame is movably arranged at the bottom of the bottom plate, and the inner width of the bottom frame is equal to the width of the carton body;

[0013] A sliding rod is symmetrically connected to the outer side wall of the bottom frame, and the sliding rod is slidably connected to the bottom frame;

[0014] a pull rod fixedly connected to one end of the slide rod located outside the bottom frame;

[0015] A limit block is fixedly connected to the other end of the slide bar, and the top of the limit block has an inclined surface;

[0016] A spring is fixedly connected between the limiting block and the inner side wall of the bottom frame, and the spring is sleeved on the outside of the sliding rod.

[0017] Preferably, the bottom of each of the limit blocks is fixedly connected with an anti-slip sticker.

[0018] Preferably, a bracket is symmetrically provided on the inner side wall of the waterproof lining, and a water-absorbing sponge is movably provided in the bracket.

[0019] Preferably, the inner walls on both sides of the waterproof lining away from the bracket are provided with supporting ridges.

[0020] Preferably, a protective cover is provided outside the PE waterproof layer.

[0021] Preferably, handles are symmetrically provided on the outer side wall of the PE waterproof layer.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, the present invention provides a carton structure with good waterproof effect, which has the following beneficial effects:

[0024] This carton structure has the advantage of good waterproof effect. The PE waterproof layer on the outside of the carton body and the waterproof lining on the inside protect the carton body inside and outside at the same time. The bottom plate supports the bottom of the carton body and enhances the durability of the bottom. The staff places the carton body in the bottom frame. After the limit plates on both sides of the bottom plate contact the inclined surface of the bottom limit block, the limit block is pushed toward the spring side. The spring is compressed. When the bottom of the bottom plate contacts the bottom surface of the bottom frame, the elastic force after the spring deformation pushes the limit block to move toward the top of the limit plate and restricts the up and down movement of the limit plate. At this time, the carton body and the bottom plate are installed in the bottom frame and isolated from the ground, preventing water from entering the bottom of the carton body and affecting the support strength of the carton body. This solves the problem that existing cartons easily absorb water and moisture in rainy weather, thereby reducing the support strength of the carton and making it inconvenient to place and transport subsequent items. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the separation structure of the bottom plate and the bottom frame in the present utility model;

[0027] Figure 3 This is an enlarged structural diagram of point A in the present utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the carton body in the present utility model.

[0029] In the picture:

[0030] 1. Carton body;

[0031] 2. Waterproof assembly; 21. PE waterproof layer; 22. Waterproof lining; 23. Bottom plate; 231. Limit plate; 24. Bottom frame; 241. Support leg; 25. Sliding rod; 251. Pull rod; 26. Limit block; 261. Anti-slip sticker; 27. Spring;

[0032] 3. Protective cover; 4. Support ribs; 5. Water-absorbing sponge; 51. Bracket; 6. Handle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] See Figure 1-4 A carton structure with good waterproof effect includes a carton body 1, and a waterproof component 2 is provided on the carton body 1. The waterproof component 2 includes: a PE waterproof layer 21, which is provided on the outer wall of the carton body 1; a waterproof lining 22, which is provided on the inner wall of the carton body 1; a bottom plate 23, which is fixedly connected to the bottom of the carton body 1; a limit plate 231, which is symmetrically provided on the outer wall of the bottom plate 23; a bottom frame 24, which is movably provided at the bottom of the bottom plate 23, and the inner width of the bottom frame 24 is the same as that of the carton body 1. The box body 1 has an equal width; the slide bar 25 is symmetrically connected to the outer wall of the bottom frame 24 and is slidably connected to the bottom frame 24; the pull rod 251 is fixedly connected to one end of the slide bar 25 located outside the bottom frame 24; the limit block 26 is fixedly connected to the other end of the slide bar 25, and the top of the limit block 26 has an inclined surface; the spring 27 is fixedly connected between the limit block 26 and the inner wall of the bottom frame 24, and the spring 27 is sleeved on the outside of the slide bar 25. The bottom of each limit block 26 is fixedly connected to an anti-slip sticker 261. The inner wall of the waterproof lining 22 is symmetrically provided with a bracket 51, and a water-absorbing sponge 5 is movably provided in the bracket 51.

[0036] When in use, the PE waterproof layer 21 on the outside of the carton body 1 blocks the external moisture, the internal waterproof lining 22 prevents water from entering the carton body 1, and the bottom plate 23 supports the bottom of the carton body 1 to enhance the durability of the bottom. The staff places the carton body 1 together with the bottom plate 23 in the bottom frame 24. After the limiting plates 231 on both sides of the bottom plate 23 contact the inclined surface of the bottom limiting block 26, the limiting block 26 is pushed to the side of the spring 27. The spring 27 is compressed and the bottom The plate 23, together with the limiting plate 231, enters the bottom frame 24. When the bottom of the bottom plate 23 contacts the bottom surface of the bottom frame 24, the limiting plate 231 moves to the bottom of the limiting block 26. The elastic force of the spring 27 after deformation pushes the limiting block 26 to move toward the top of the limiting plate 231 and restricts the up and down movement of the limiting plate 231. At this time, the carton body 1 and the bottom plate 23 are installed in the bottom frame 24 and isolated from the ground to prevent water from entering the bottom of the carton body 1 and affecting the supporting strength of the carton body 1. When the carton body 1 needs to be taken out of the bottom frame 24, the staff simultaneously pulls out the pull rods 251 on both sides. The pull rods 251 drive the limiting block 26 to move out of the top of the limiting plate 231. At this time, the carton body 1 can be removed from the bottom frame 24. The anti-slip sticker 261 is used to increase the friction after the limiting block 26 contacts the limiting plate 231, thereby enhancing the fixing effect of the limiting block 26 on the limiting plate 231. The absorbent sponge 5 in the bracket 51 absorbs water vapor in the air inside the carton body 1 to prevent water vapor in the air from entering the carton body 1 after the carton body 1 is opened, affecting the normal storage of items. At the same time, the absorbent sponge 5 can be removed from the bracket 51, which is convenient for staff to replace in time.

[0037] Example 2

[0038] On the basis of the first embodiment, an auxiliary function is added.

[0039] See Figure 1-4 The inner walls of the waterproof lining 22 on both sides away from the bracket 51 are provided with support ribs 4. A protective cover 3 is provided on the outside of the PE waterproof layer 21. Handles 6 are symmetrically provided on the outer side walls of the PE waterproof layer 21.

[0040] When the carton body 1 is bent under pressure, the bend affects the waterproofing effect of the PE waterproof layer 21 and the waterproof lining 22. The supporting ribs 4 support the interior of the carton body 1, increasing the supporting strength of the carton body 1, reducing the probability of the carton body 1 bending after being compressed, and avoiding affecting the waterproofing effect of the carton body 1. The protective cover 3 is used to reduce the wear of the outer surface of the PE waterproof layer 21, increase the service life of the PE waterproof layer 21, and further enhance the waterproofing effect of the carton body 1. The handle 6 facilitates the staff to carry the carton body 1, improving the staff's efficiency in placing the carton body 1 and removing it from the bottom frame 24.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carton structure with good waterproof effect, characterized by: The invention comprises a carton body (1), wherein a waterproof component (2) is provided on the carton body (1), and the waterproof component (2) comprises: A PE waterproof layer (21) is provided on the outer side wall of the carton body (1); A waterproof lining (22) is provided on the inner wall of the carton body (1); A bottom plate (23) is fixedly connected to the bottom of the carton body (1); A limiting plate (231) is symmetrically arranged on the outer side wall of the bottom plate (23); A bottom frame (24) is movably arranged at the bottom of the bottom plate (23), and the inner width of the bottom frame (24) is equal to the width of the carton body (1); A slide rod (25) is symmetrically connected to the outer wall of the bottom frame (24), and the slide rod (25) is slidably connected to the bottom frame (24); A pull rod (251) fixedly connected to one end of the slide rod (25) located outside the bottom frame (24); A limit block (26) is fixedly connected to the other end of the slide rod (25), and the top of the limit block (26) has an inclined surface; The spring (27) is fixedly connected between the limit block (26) and the inner wall of the bottom frame (24), and the spring (27) is sleeved on the outside of the slide rod (25).

2. A carton structure with good waterproof effect according to claim 1, characterized in that: The bottom of each of the limiting blocks (26) is fixedly connected with an anti-slip sticker (261).

3. A carton structure with good waterproof effect according to claim 2, characterized in that: A bracket (51) is symmetrically provided on the inner side wall of the waterproof lining (22), and a water-absorbing sponge (5) is movably provided in the bracket (51).

4. A carton structure with good waterproof effect according to claim 3, characterized in that: Support ridges (4) are provided on both inner walls of the waterproof lining (22) away from the bracket (51).

5. A carton structure with good waterproof effect according to claim 4, characterized in that: A protective cover (3) is provided outside the PE waterproof layer (21).

6. A carton structure with good waterproof effect according to claim 5, characterized in that: Handles (6) are symmetrically provided on the outer side wall of the PE waterproof layer (21).