An adjustable size paper loading box

CN224409978UActive Publication Date: 2026-06-26青岛泽丰包装有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛泽丰包装有限公司
Filing Date
2025-08-22
Publication Date
2026-06-26

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  • Figure CN224409978U_ABST
    Figure CN224409978U_ABST
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Abstract

The application relates to the field of paper loading boxes, in particular to a size-adjustable paper loading box which comprises a base, side plate boxes are arranged at the top of the two sides of the base, sliding blocks are fixedly connected to the bottom of the side plate boxes, the bottom of the sliding blocks extends to the inside of the base, the surface of the sliding blocks is movably connected with the inside of the base, the bottom of the sliding blocks is provided with fastening plates, the outer sides of the fastening plates are movably connected to the two sides of the inner wall of the base, the inside of the base is fixedly connected with mounting blocks, and the inside of the mounting blocks is provided with a fastening mechanism. The side plate position is flexibly adjusted through the structure of the side plate boxes and other structures arranged on the sliding blocks, the problem that oversized paper cannot be matched due to the fixed side plate position of the traditional paper loading box is solved, the compatibility of the paper loading box to different specifications of paper is greatly improved, the use flexibility and practicality are enhanced, and the user operation experience is improved.
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Description

Technical Field

[0001] This application relates to the field of paper box technology, specifically an adjustable-size paper box. Background Technology

[0002] According to the patent authorization announcement number: CN202739880U, a paper box is disclosed. This utility model relates to the field of daily necessities technology. Its key technical points are: it includes a base and a side panel. The side panel is a cuboid frame, fixed on the base, and has a slot on one side. This utility model has a simple structure, reasonable design, and small box size, making it suitable for storing a small amount of paper.

[0003] However, there are problems with the existing technology: the side panels on both sides of the top of the paper box base are fixed and their positions cannot be flexibly adjusted according to the actual size of the paper to be placed. This design defect directly leads to the fact that when encountering paper that is too large, the edge of the paper cannot be smoothly inserted into the inner space of the two side panels, resulting in the paper being difficult to place stably or even completely unable to fit the paper box. This limitation not only greatly reduces the compatibility of the paper box with different paper sizes, but also causes inconvenience in actual use, seriously affecting the practical effect and user experience of the paper box. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable-size paper box, which solves the problem that the side panels on both sides of the top of the paper box base are fixed and their positions cannot be flexibly adjusted according to the actual size of the paper to be placed. This design defect directly leads to the situation that when encountering paper that is too large, the edge of the paper cannot be smoothly inserted into the inner space of the side panels, resulting in the paper being difficult to place stably or even completely unable to fit the paper box. This limitation not only greatly reduces the compatibility of the paper box with different sizes of paper, but also causes inconvenience in actual use, seriously affecting the practical effect and user experience of the paper box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-size cardboard box, including a base, with side panel boxes provided on both sides of the top of the base, a sliding block fixedly connected to the bottom of the side panel box, the bottom of the sliding block extending into the interior of the base, the surface of the sliding block being movably connected to the interior of the base, a fastening plate provided at the bottom of the sliding block, the outer side of the fastening plate being movably connected to both sides of the inner wall of the base, an installation block fixedly connected to the interior of the base, and a fastening mechanism provided inside the installation block.

[0006] Preferably, the fastening mechanism includes a lifting plate located inside the mounting block, with both sides of the lifting plate extending to both sides of the mounting block. Springs are fixedly connected to both sides of the bottom of the lifting plate, with the bottom of the springs fixedly connected to the bottom of the mounting block. A push rod is fixedly connected to the top of the lifting plate, with the top of the push rod extending through to the top of the mounting block.

[0007] Preferably, a pressing plate is fixedly connected to the top of the push rod, and the pressing plate is located inside the mounting block.

[0008] Preferably, a friction pad is fixedly connected to the top of the pressing plate, and the friction pad is located inside the mounting block.

[0009] Preferably, a reinforcing sleeve is fixedly connected to the bottom of the push rod surface, and the bottom of the reinforcing sleeve is fixedly connected to the top of the lifting plate.

[0010] Preferably, a roller is movably connected to the inner side of the fastening plate, and the surface of the roller contacts the top of the lifting plate.

[0011] Preferably, vertical rods are slidably connected to both sides of the lifting plate, and the surfaces of the vertical rods are fixedly connected to the inner wall of the mounting block.

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

[0013] 1. This utility model achieves flexible adjustment of the side plate position by adding a side plate box and other structures to the sliding block, which solves the problem that the fixed side plate position of the traditional paper box makes it impossible to fit large paper. It greatly improves the compatibility of the paper box with different paper sizes, enhances the flexibility and practicality of use, and improves the user's operating experience.

[0014] 2. This utility model provides stable mechanical support for the adjustment and fixation of the side plate by adding a lifting plate, spring and push rod to the mounting block. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the side panel box of this utility model;

[0017] Figure 3 This is a perspective view of the sliding block of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Base; 2. Side panel box; 3. Sliding block; 4. Fastening plate; 5. Mounting block; 61. Lifting plate; 62. Spring; 63. Push rod; 7. Pressing plate; 8. Friction pad; 9. Reinforcing sleeve; 10. Roller; 11. Vertical rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 An adjustable-size paper box includes a base 1, with side panel boxes 2 on both sides of the top of the base 1. A sliding block 3 is fixedly connected to the bottom of the side panel box 2, and the bottom of the sliding block 3 extends into the interior of the base 1. The surface of the sliding block 3 is movably connected to the interior of the base 1. A fastening plate 4 is provided at the bottom of the sliding block 3, and the outer side of the fastening plate 4 is movably connected to both sides of the inner wall of the base 1. An mounting block 5 is fixedly connected to the interior of the base 1, and a fastening mechanism is provided inside the mounting block 5.

[0022] Please see Figure 1-4 The fastening mechanism includes a lifting plate 61, which is located inside the mounting block 5. The two sides of the lifting plate 61 extend to the two sides of the mounting block 5. Springs 62 are fixedly connected to both sides of the bottom of the lifting plate 61. The bottom of the springs 62 is fixedly connected to the bottom of the mounting block 5. A push rod 63 is fixedly connected to the top of the lifting plate 61. The top of the push rod 63 extends through to the top of the mounting block 5.

[0023] Furthermore, the spring 62 automatically tightens the sliding block 3, ensuring that the side plate remains in a stable position after adjustment, preventing the paper from becoming unstable due to shaking during use. At the same time, the push rod 63 structure makes it easy for users to operate the adjustment process, improving the ease of operation.

[0024] Please see Figure 1-4 A pressing plate 7 is fixedly connected to the top of the push rod 63, and the pressing plate 7 is located inside the mounting block 5.

[0025] Furthermore, the setting of the pressing plate 7 increases the force-bearing area during user operation, making it easier for users to apply force through the pressing plate 7. This allows for more precise and stable control of the lifting and lowering action of the push rod 63, reducing hand fatigue during operation and further optimizing the convenience and comfort of adjustment operation.

[0026] Please see Figure 1-4A friction pad 8 is fixedly connected to the top of the pressing plate 7, and the friction pad 8 is located inside the mounting block 5.

[0027] Furthermore, the friction pad 8 effectively prevents hand slippage during operation, ensuring that the user can stably control the pressing plate 7 during the application of force, thus improving operational safety and reliability, especially when hands are wet or when applying greater force.

[0028] Please see Figure 1-4 A reinforcing sleeve 9 is fixedly connected to the bottom of the surface of the push rod 63, and the bottom of the reinforcing sleeve 9 is fixedly connected to the top of the lifting plate 61.

[0029] Furthermore, by setting the reinforcing sleeve 9, the connection strength and stability between the two can be enhanced, avoiding loosening or damage at the connection between the push rod 63 and the lifting plate 61 due to repeated stress during long-term use, extending the service life of the fastening mechanism, and ensuring the long-term stable use of the paper box.

[0030] Please see Figure 1-4 A roller 10 is movably connected to the inner side of the fastening plate 4, and the surface of the roller 10 contacts the top of the lifting plate 61.

[0031] Furthermore, by setting the rollers 10, sliding friction can be converted into rolling friction, which greatly reduces the friction between the lifting plate 61 and the fastening plate 4 when the lifting plate 61 moves, making the lifting action of the lifting plate 61 smoother and more flexible, reducing the resistance in the adjustment process, and making the adjustment operation of the side plate more labor-saving and efficient.

[0032] Please see Figure 1-4 Both sides of the lifting plate 61 are slidably connected with vertical rods 11, and the surface of the vertical rods 11 is fixedly connected to the inner wall of the mounting block 5.

[0033] Furthermore, the vertical rod 11 ensures that the lifting plate 61 maintains a stable vertical direction during its up-and-down movement, preventing deviation or tilting, ensuring uniform force on the fastening mechanism, and improving the stability and adjustment accuracy of the side plate fixing.

[0034] The specific implementation process of this utility model is as follows: In use, the sliding block 3 is fixed by the fastening plate 4 in the figure. The sliding block 3 fixes the side plate box 2 to the top of the base 1, and the side plate box 2 can be stably maintained at the top of the base 1. The user can put paper inside the side plate box 2. When a large area of ​​paper needs to be put inside the side plate box 2.

[0035] Pushing the pressing plate 7 down causes the push rod 63 and the lifting plate 61 to move downwards. The lifting plate 61 compresses the spring 62. After the roller 10 and the inner side of the fastening plate 4 lose their support, they also fall down. The fastening plate 4 and the sliding block 3 separate, and the sliding block 3 and the side plate box 2 can slide and adjust the distance on the top of the base 1.

[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable-size cardboard box, comprising a base (1), characterized in that: Side panel boxes (2) are provided on both sides of the top of the base (1). A sliding block (3) is fixedly connected to the bottom of the side panel box (2). The bottom of the sliding block (3) extends into the interior of the base (1). The surface of the sliding block (3) is movably connected to the interior of the base (1). A fastening plate (4) is provided at the bottom of the sliding block (3). The outer side of the fastening plate (4) is movably connected to both sides of the inner wall of the base (1). An installation block (5) is fixedly connected to the interior of the base (1). A fastening mechanism is provided inside the installation block (5).

2. The adjustable-size paper box according to claim 1, characterized in that: The fastening mechanism includes a lifting plate (61) located inside the mounting block (5). The two sides of the lifting plate (61) extend to the two sides of the mounting block (5). Springs (62) are fixedly connected to both sides of the bottom of the lifting plate (61). The bottom of the springs (62) is fixedly connected to the bottom of the mounting block (5). A push rod (63) is fixedly connected to the top of the lifting plate (61). The top of the push rod (63) extends through to the top of the mounting block (5).

3. The adjustable-size paper box according to claim 2, characterized in that: A pressing plate (7) is fixedly connected to the top of the push rod (63), and the pressing plate (7) is located inside the mounting block (5).

4. An adjustable-size paper box according to claim 3, characterized in that: A friction pad (8) is fixedly connected to the top of the pressing plate (7), and the friction pad (8) is located inside the mounting block (5).

5. An adjustable-size paper box according to claim 2, characterized in that: A reinforcing sleeve (9) is fixedly connected to the bottom of the surface of the push rod (63), and the bottom of the reinforcing sleeve (9) is fixedly connected to the top of the lifting plate (61).

6. An adjustable-size paper box according to claim 1, characterized in that: The inner side of the fastening plate (4) is movably connected to a roller (10), and the surface of the roller (10) is in contact with the top of the lifting plate (61).

7. An adjustable-size paper box according to claim 2, characterized in that: Both sides of the lifting plate (61) are slidably connected with vertical rods (11), and the surface of the vertical rods (11) is fixedly connected to the inner wall of the mounting block (5).