A carton for printing packaging decorations

By designing a snap-lock mechanism on the cardboard box, the problem of complicated opening and closing of the box lid is solved, enabling quick locking and unlocking, improving efficiency and packaging security.

CN224577134UActive Publication Date: 2026-07-31ANHUI HONGYANG PACKAGING GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HONGYANG PACKAGING GRP
Filing Date
2025-07-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing cardboard box lid opening and closing process is complicated, requires multiple steps, and is prone to causing the items inside the box to slide or tip over, which is especially unsafe for packaging fragile or liquid products.

Method used

It adopts a snap-locking mechanism, including a fixed limit block, a movable limit block, a support spring and a pull ring, which can quickly lock and unlock the carton body and the lid through simple pressing and pulling operations, avoiding tilting operations.

Benefits of technology

It simplifies the opening and closing process of cardboard boxes, improves efficiency, ensures that the items inside the box are not easily slipped or tipped over during normal use, and enhances the packaging safety of fragile or liquid products.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of paper box technology, and in particular to a packaging and decoration printing paper box, including a paper box body, a support plate fixedly installed at the bottom of the paper box body, and a lid movably latched at the top of the paper box body. When an item is placed inside the paper box body and the lid needs to be closed, simply press down on the lid, and the locking mechanism will lock the paper box body and the lid together. When the box needs to be opened, simply pull the locking mechanisms on both sides simultaneously to lock the paper box body and the lid. The whole process is simple to operate and does not require tilting the paper box body, thus ensuring the safety of the items inside the paper box body. This simple and reasonable design not only improves the efficiency of use, but also ensures that the items inside the box will not easily slide or tip over during normal use, especially providing reliable protection for the packaging safety of fragile or liquid goods.
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Description

Technical Field

[0001] This utility model relates to the field of paper box technology, and in particular to a packaging and decoration printing paper box. Background Technology

[0002] Paper boxes are three-dimensional polyhedrons, composed of multiple faces that are moved, stacked, folded, and surrounded. When designing them, attention should be paid to the connection and transition between the display face, sides, top, and bottom, and the brand logo, product information, and other packaging elements should be arranged in a reasonable manner. Their core value lies in beautifying the product and enhancing its competitiveness through shape and decoration, while the structure must conform to the shape characteristics of the product. Therefore, various styles such as top and bottom lid boxes, drawer boxes, and irregularly shaped boxes have been developed to meet the protection and display needs of different products.

[0003] For example, the packaging and decoration printing paper box disclosed in Chinese Patent No. CN222388542U uses a fixed component to stabilize the paper box body and the paper box lid, preventing the lid from opening easily. A paper box support plate prevents the paper box body from directly contacting the ground. When sealing the paper box lid and body, the lower end of the lid first contacts the upper end of the body. The folded lid then magnetically attaches to the front end of the body. Finally, the movable cardboard is folded to ninety degrees and folded against the lower end of the body. Upon surface contact, the fixed insert and connecting clip are inserted into the slot and secondary slot, respectively. The fixed insert presses down on the movable plate, causing the compression spring to deform. When the fixed insert and connecting clip are fully inside the movable cavity, turning the knob rotates the connecting rod, which rotates the fixed insert 90 degrees, causing the upper outer surface of the connecting clip to contact the upper outer surface of the inner wall of the movable cavity. Releasing the knob causes the movable plate to press upward under the restoring action of the compression spring, locking the connecting clip inside the movable cavity. This prevents the cardboard box lid from opening easily, increasing its stability. While the above-described solution prevents the cardboard box lid from opening easily after closing, in practice, the opening and closing process requires multiple steps, including magnetic alignment, cardboard folding, clip insertion, and rotation fixation. The box also needs to be tilted to provide operating space. This complex design not only reduces efficiency but also makes the contents prone to sliding or tipping over during repeated tilting, posing a safety hazard, especially for fragile or liquid products. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides the following technical solution: a packaging and decoration printing paper box, comprising a paper box body, a support plate fixedly installed at the bottom of the paper box body, and a lid movably snapped onto the top of the paper box body;

[0005] The inner walls on both sides of the lid are fixed with a locking mechanism to strengthen the connection between the carton body and the lid.

[0006] As an improvement to the above technical solution, the locking mechanism includes a fixed limiting block, a movable main board, a movable limiting block, a support spring, and a pull ring. The fixed limiting block is fixedly installed on the left and right sides of the cardboard box body close to the top. Hidden grooves are provided on the inner walls of both sides of the box cover. The movable main board is slidably engaged in the hidden grooves. The movable limiting block is fixedly installed on the side of the movable main board closer to the cardboard box body. The support spring is fixedly installed on the inner wall of the hidden groove away from the cardboard box body. The end of the support spring closer to the cardboard box body is fixedly installed with the side of the movable main board away from the cardboard box body. Communicating circular holes are provided on both sides of the box cover. The pull ring is movably inserted into the communicating circular holes. The end of the pull ring closer to the cardboard box body is fixedly installed with the movable main board.

[0007] As an improvement to the above technical solution, positioning slots are provided in the middle of the inner walls on both the front and rear sides of the box cover, and positioning blocks are fixedly installed in the middle of the front and rear sides of the main body of the paper box. The positioning slots and positioning blocks are movably connected.

[0008] As an improvement to the above technical solution, there are multiple fixed limit blocks and multiple movable limit blocks, and the multiple fixed limit blocks and multiple movable limit blocks are all staggered with each other.

[0009] As an improvement to the above technical solution, the top of the fixed limiting block is arc-shaped and the bottom is flat, while the top of the movable limiting block is flat and the bottom is arc-shaped.

[0010] The beneficial effects of this utility model are as follows: When an item is placed inside the cardboard box and the lid needs to be closed, simply press down on the lid. With the cooperation of the locking mechanism, the cardboard box body and the lid can be locked. When the box needs to be opened, simply pull the locking mechanisms on both sides at the same time to lock the cardboard box body and the lid. The whole process is simple to operate and does not require tilting the cardboard box body, thus ensuring the safety of the items inside the cardboard box. This simple and reasonable design not only improves the efficiency of use, but also ensures that the items inside the box will not easily slide or tip over during normal use, especially providing reliable protection for the packaging safety of fragile or liquid products. Attached Figure Description

[0011] Figure 1 This is the main view of the packaging and decoration printing paper box of this utility model;

[0012] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0013] Figure 3 This is an exploded view of the packaging and decoration printing paper box of this utility model;

[0014] Figure 4 This utility model Figure 2Enlarged view of the structure at point A in the middle;

[0015] Figure 5 This utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0016] Reference numerals: 1. Main body of the cardboard box; 11. Support plate; 2. Box lid; 3. Fixed limiting block; 31. Hidden groove; 32. Moving main board; 33. Moving limiting block; 34. Support spring; 35. Connecting round hole; 36. Pull ring; 4. Positioning slot; 41. Positioning block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0018] Reference Appendix Figure 1 ,exist Figure 1 In the diagram, 'a' points to the front view and 'b' points to the right-side view. These views are only used to understand the scheme.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a packaging and decoration printing paper box, including a paper box body 1, a support plate 11 fixedly installed at the bottom of the paper box body 1, and a box cover 2 movably snapped onto the top of the paper box body 1;

[0020] The inner walls on both sides of the lid 2 are fixed with a locking mechanism to strengthen the connection between the carton body 1 and the lid 2.

[0021] In this implementation scheme, when an item is placed inside the cardboard box body 1 and the lid 2 needs to be closed, simply press down on the lid 2. With the cooperation of the locking mechanism, the cardboard box body 1 and the lid 2 can be locked. When the box needs to be opened, simply pull the locking mechanisms on both sides at the same time to lock the cardboard box body 1 and the lid 2. The whole process is simple to operate and does not require tilting the cardboard box body 1, thus ensuring the safety of the items inside the cardboard box body 1. This simple and reasonable design not only improves the efficiency of use, but also ensures that the items inside the box will not easily slide or tip over during normal use.

[0022] Specifically, the locking mechanism includes a fixed limiting block 3, a movable main board 32, a movable limiting block 33, a support spring 34, and a pull ring 36. The fixed limiting block 3 is fixedly installed on the left and right sides of the paper box body 1 close to the top. The inner walls of the left and right sides of the box cover 2 are provided with hidden grooves 31. The movable main board 32 is slidably engaged in the hidden grooves 31. The movable limiting block 33 is fixedly installed on the side of the movable main board 32 close to the paper box body 1. The support spring 34 is fixedly installed on the inner wall of the hidden groove 31 away from the paper box body 1. The end of the support spring 34 close to the paper box body 1 is fixedly installed with the side of the movable main board 32 away from the paper box body 1. The left and right sides of the box cover 2 are provided with communicating round holes 35. The pull ring 36 is movably inserted into the communicating round holes 35. The end of the pull ring 36 close to the paper box body 1 is fixedly installed with the movable main board 32.

[0023] In this embodiment, the locking mechanism's internal structure is used to quickly and easily lock the cardboard box body 1 and the box lid 2.

[0024] Specifically, positioning slots 4 are provided in the middle of the inner walls on both the front and rear sides of the box cover 2, and positioning blocks 41 are fixedly installed in the middle of the front and rear sides of the cardboard box body 1. The positioning slots 4 and positioning blocks 41 are movably inserted into each other.

[0025] In this embodiment, the locking mechanisms on both sides are positioned and fixed by the movable insertion between the positioning slot 4 and the positioning block 41.

[0026] Specifically, there are multiple fixed limit blocks 3 and multiple movable limit blocks 33, and the multiple fixed limit blocks 3 and multiple movable limit blocks 33 are all staggered with each other.

[0027] In this embodiment, the locking stability between the cardboard box body 1 and the box lid 2 is improved by interlocking multiple fixed limiting blocks 3 and movable limiting blocks 33.

[0028] Specifically, the top of the fixed limiting block 3 is arc-shaped and the bottom is flat, while the top of the movable limiting block 33 is flat and the bottom is arc-shaped.

[0029] In this embodiment, the special shapes of the fixed limiting block 3 and the movable limiting block 33 are designed to enable reasonable relative movement and mutual engagement between the two.

[0030] In use, after placing the item inside the cardboard box body 1, close the lid 2 and press it down. The lid 2, with its locking mechanism, moves downward, causing the movable limit block 33 to contact the fixed limit block 3. As the movable limit block 33 moves downward, its arc surface is pushed in the opposite direction by the arc surface of the fixed limit block 3, which in turn drives the movable main board 32 to move away from the cardboard box body 1. The movable main board 32 moves away from the cardboard box body 1, compressing the support spring 34. The movable main board 32 also drives the pull ring 36 to move away from the cardboard box body 1, allowing the movable limit block 33 to move downward. When the movable limit block 33 moves to the lower side of the fixed limit block 3 and releases contact with it, the support spring 34 drives the movable main board 32 to move closer to the cardboard box body 1 to reset. The movable main board 32 drives the pull ring 36 to move closer to the cardboard box body 1 to reset. At this time, the movable main board 32 pushes the movable limit block 33 to move towards the cardboard box body 1 and... Similarly, the relative movement principle of the other fixed limiting blocks 3 and movable limiting blocks 33 is the same as above. The top plane of the movable limiting block 33 contacts the bottom plane of the fixed limiting block 3, thereby completing the locking between the cardboard box body 1 and the box lid 2. Through the cooperation of the locking mechanism, the box lid 2 cannot be easily opened. When it is necessary to open the box lid 2, pull the pull rings 36 on both sides, so that the pull rings 36 drive the movable main board 32 to move away from the position and compress the support spring 34. The pull rings 36 drive the movable limiting block 33 to move away from the cardboard box body 1 and disengage from the fixed limiting block 3. At this time, the box lid 2 can be easily removed. The whole process is simple to operate and does not require tilting the cardboard box body 1, thereby ensuring the safety of the items inside the cardboard box body 1. This simple and reasonable design not only improves the efficiency of use, but also ensures that the items inside the box will not easily slide or tip over during normal use, especially providing reliable protection for the packaging safety of fragile or liquid products.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A carton for the printing of packaging decorations, comprising a carton body (1), characterized in that: A support plate (11) is fixedly installed at the bottom of the paper box body (1), and a box cover (2) is movably attached to the top of the paper box body (1). The inner walls on the left and right sides of the lid (2) are fixed with a locking mechanism to strengthen the connection between the carton body (1) and the lid (2).

2. A packaging and printing carton according to claim 1, characterized in that: The locking mechanism includes a fixed limiting block (3), a movable main board (32), a movable limiting block (33), a support spring (34), and a pull ring (36). The fixed limiting block (3) is fixedly installed on the left and right sides of the cardboard box body (1) close to the top. The inner walls of the left and right sides of the box cover (2) are provided with hidden grooves (31). The movable main board (32) is slidably engaged in the hidden grooves (31). The movable limiting block (33) is fixedly installed on the movable main board (32) near the cardboard box body (1). On the side, the support spring (34) is fixedly installed on the inner wall of the hidden groove (31) away from the paper box body (1). The end of the support spring (34) near the paper box body (1) is fixedly installed on the side of the moving main board (32) away from the paper box body (1). The left and right sides of the box cover (2) are provided with connecting round holes (35). The pull ring (36) is movably inserted into the connecting round hole (35). The end of the pull ring (36) near the paper box body (1) is fixedly installed on the moving main board (32).

3. A packaging printed carton according to claim 1, characterized in that: The inner walls of the front and rear sides of the box cover (2) are provided with positioning slots (4), and the inner walls of the front and rear sides of the paper box body (1) are fixedly installed with positioning blocks (41). The positioning slots (4) and positioning blocks (41) are movably connected.

4. A packaging printed carton according to claim 2, wherein: There are multiple fixed limiting blocks (3) and multiple movable limiting blocks (33), and the multiple fixed limiting blocks (3) and multiple movable limiting blocks (33) are all staggered with each other.

5. A packaging printed carton according to claim 2, wherein: The top of the fixed limiting block (3) is arc-shaped and the bottom is flat, while the top of the movable limiting block (33) is flat and the bottom is arc-shaped.