Packaging box

The locking mechanism of the buckle and locking parts solves the problem of the inner box separating from the outer box during transportation, thus ensuring safe storage and transportation and convenient use of the product.

CN223982900UActive Publication Date: 2026-03-10ZHEJIANG XINXIANG PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing pull-out packaging boxes are prone to separation between the inner and outer boxes during transportation or handling, causing products to fall out. They fail to meet storage and transportation protection requirements and are inconvenient to use.

Method used

The inner and outer boxes are secured by a locking mechanism consisting of a snap-fit ​​part and a locking part. The inner and outer boxes are fixed by the contact between the movable plate and the fixed plate, and can be quickly unlocked by the unlocking part, ensuring that the inner and outer boxes are relatively fixed and easy to pull out.

Benefits of technology

The structural strength of the packaging box has been improved, preventing the inner box from separating from the outer box during transportation or handling, thus protecting the product safety, and it is easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging, in particular to a packaging box which comprises an inner box and an outer box, the outer box is provided with an inner cavity and an opening communicated with the inner cavity, the inner box is arranged in the inner cavity and connected with the outer box in a sliding mode, a buckling part is arranged on the inner box, a locking part matched with the buckling part in a locking mode is arranged in the outer box, and the opening is communicated with the opening. The inner box and the outer box are fixed relatively when the buckling part is matched with the locking part in a locking mode, an unlocking part is further arranged outside the outer box and used for releasing the locking matching of the buckling part and the locking part, relative fixing of the inner box and the outer box is achieved through the locking matching of the buckling part and the locking part, the structural matching strength is improved, and the inner box and the outer box are fixed relatively. The inner box and the outer box cannot be separated in the transportation or taking and placing process, products in the packaging box are better protected, and the packaging box is convenient to use.
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Description

Technical Field

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

[0002] Packaging boxes play an extremely important role in the modern product packaging industry. They are made by cutting and folding raw materials to form containers with specific shapes, according to the packaging and storage needs of different items.

[0003] To meet users' needs to open or close the packaging box multiple times to retrieve the product, a pull-out packaging box was designed. The pull-out packaging box includes an inner box and an outer box. The inner box has an inner cavity for storing items, and the outer box has an opening through which the inner box can be pulled out.

[0004] However, this type of pull-out packaging box still has the problem of not being able to meet the protection needs of the packaged product during storage and transportation. The inner box and outer box are easy to separate during transportation or handling, which can cause the items stored in the inner box to fall out, making it inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a packaging box. This utility model achieves the relative fixation of the inner box and the outer box through the locking cooperation of the buckle part and the locking part, improves the structural strength, and ensures that the inner box and the outer box will not separate during transportation or handling, thus better protecting the product inside the packaging box and making it convenient to use.

[0006] The technical solution adopted by this utility model is as follows: A packaging box includes an inner box and an outer box. The outer box has an inner cavity and an opening communicating with the inner cavity. The inner box is disposed in the inner cavity and slidably connected with the outer box. The inner box has a buckle part. The outer box has a locking part inside that locks with the buckle part. When the buckle part and the locking part are locked together, the inner box and the outer box are relatively fixed. The outer box also has an unlocking part on its exterior, which is used to release the locking engagement between the buckle part and the locking part.

[0007] The buckle part is a movable plate disposed on the outer wall of the inner box, and the locking part is a fixed plate fixedly disposed on the inner wall of the outer box. The fixed plate is used to limit the extension direction of the movable plate. When the movable plate abuts against the fixed plate, the inner box and the outer box are relatively fixed.

[0008] One end of the movable plate is connected to the inner box, and the other end is an abutting part for abutting and cooperating with the fixed plate. The movable plate is folded and set on the outer wall of the inner box.

[0009] The unlocking part is a window opened on the outer wall of the outer box and communicating with the inner cavity. The window is located on the side of the outer box near the fixed plate. When the movable plate abuts against the fixed plate, the orthographic projection of the movable plate and the window has at least partial overlap.

[0010] The abutting part is arc-shaped, and when the abutting part abuts against the fixing plate, the position of the top of the abutting part corresponds to the position of the window.

[0011] The inner diameter of the window is smaller than the radius of the contact portion.

[0012] Both the movable board and the inner box are made of paper, and the movable board and the inner box are formed by integral bending.

[0013] The beneficial effects of this utility model are as follows: This utility model achieves relative fixation of the inner box and the outer box through the locking cooperation of the buckle part and the locking part, which can meet the protection requirements of product storage and transportation after packaging, improve the structural strength, and ensure that the inner box and the outer box will not separate during transportation or handling, thus better protecting the product inside the packaging box. Furthermore, when it is necessary to open the packaging box, the buckle part and the locking part can be quickly unlocked through the unlocking part, allowing the inner box and the outer box to be easily pulled out, making it convenient to use. Attached Figure Description

[0014] 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, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0015] Figure 1 This is a schematic diagram of the structure of a packaging box according to the present invention;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is a structural schematic diagram from another perspective of the present invention;

[0018] Figure 4 This is a schematic diagram of the outer box structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the inner box structure in this utility model;

[0020] Figure 6 This is a structural schematic diagram of the inner box from another perspective in this utility model;

[0021] In the diagram, 1-inner box, 2-outer box, 3-inner cavity, 4-opening, 5-movable plate, 6-fixed plate, 7-abutting part, 8-window. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0023] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0024] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0025] like Figures 1 to 6 As shown, this is an embodiment of the present invention. A packaging box includes an inner box 1 and an outer box 2. The outer box 2 has an inner cavity 3 and an opening 4 communicating with the inner cavity 3. The inner box 1 is disposed in the inner cavity 3 and slidably connected to the outer box 2. The inner box 1 has a buckle part. The outer box 2 has a locking part inside that locks with the buckle part. When the buckle part and the locking part are locked together, the inner box 1 and the outer box 2 are relatively fixed. The outer box 2 also has an unlocking part on its exterior, which is used to release the locking engagement between the buckle part and the locking part.

[0026] The beneficial effects of this design are as follows: This utility model achieves relative fixation of the inner box and the outer box through the locking and fastening of the buckle and the locking part, which can meet the protection requirements of product storage and transportation after packaging, improve the structural strength, and ensure that the inner box and the outer box will not separate during transportation or handling, thus better protecting the product inside the packaging box. Furthermore, when it is necessary to open the packaging box, the buckle and the locking part can be quickly unlocked through the unlocking part, allowing the inner box and the outer box to be easily pulled out, making it convenient to use.

[0027] The structure at the bottom of the outer box in the attached figure is a conventional stacking socket in the prior art, and it is shown in the figure in the open state.

[0028] In a further configuration, the latching part is a movable plate 5 disposed on the outer wall of the inner box 1, and the locking part is a fixed plate 6 fixedly disposed on the inner wall of the outer box 2. The fixed plate 6 is used to limit the extension direction of the movable plate 5. When the movable plate 5 abuts against the fixed plate 6, the inner box 1 and the outer box 2 are relatively fixed.

[0029] The beneficial effects of this design are as follows: the inner box is fixed in the inner cavity of the outer box by the abutting between the movable plate and the fixed plate of the outer box, preventing the inner box from sliding out of the outer box from the opening direction. The simplified structure can cleverly achieve the locking effect, and has the advantages of low manufacturing cost and good durability.

[0030] In a further configuration, one end of the movable plate 5 is connected to the inner box 1, and the other end is an abutment part 7 for abutting and cooperating with the fixed plate 6. The movable plate 5 is folded and disposed on the outer wall of the inner box 1.

[0031] The advantages of this design are as follows: the folding movable plate has the advantage of high freedom of movement. When the inner box slides into place in the inner cavity, the movable plate and the fixed plate will automatically abut against each other to achieve a self-locking effect, making installation simpler and improving packaging efficiency.

[0032] Further, the unlocking part is a window 8 opened on the outer wall of the outer box 2 and communicating with the inner cavity 3. The window 8 is located on the side of the outer box 2 near the fixed plate 6. When the movable plate 5 abuts against the fixed plate 6, the orthographic projection of the movable plate 5 and the window 8 at least partially overlaps.

[0033] The advantages of this design are as follows: the window makes it easier to unlock the contact between the movable plate and the fixed plate. That is, by pressing the movable plate through the window, the movable plate and the fixed plate are separated and unlocked. It can be unlocked directly from the outside, making the operation convenient.

[0034] Furthermore, the abutting part 7 is arc-shaped, and when the abutting part 7 abuts against the fixing plate 6, the position of the top of the abutting part 7 corresponds to the position of the window 8.

[0035] The beneficial effects of this design are as follows: the movable plate, with its arc-shaped end, not only provides a secure connection but also reduces the contact area between the movable plate and the fixed plate. Unlocking the movable plate by pressing it through the window is easier and less strenuous, thus fulfilling the practicality of the packaging box.

[0036] Furthermore, the inner diameter of the window 8 is smaller than the radius of the abutment portion 7.

[0037] The benefits of this design are as follows: it prevents the abutment from protruding from the window and causing misalignment, which could easily cause the movable plate to bend in the opposite direction, resulting in a lack of smoothness when locking or unlocking.

[0038] Furthermore, both the movable plate 5 and the inner box 1 are made of paper, and the movable plate 5 and the inner box 1 are integrally bent into shape.

[0039] The beneficial effects of this design are as follows: the paper material has good elasticity, and when the inner box slides inside the outer box, the movable plate tends to move away from the inner box due to its own elasticity, so that the movable plate will abut against the fixed plate after the inner box slides into place.

[0040] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A packaging box comprising an inner box (1) and an outer box (2), the outer box (2) being provided with an inner cavity (3) and an opening (4) communicating with the inner cavity (3), the inner box (1) being arranged in the inner cavity (3) and being in sliding connection with the outer box (2), characterized in that: The inner box (1) is provided with a buckle part, the outer box (2) is provided with a locking part matched with the buckle part, the inner box (1) is fixed relative to the outer box (2) when the buckle part is matched with the locking part, and the outer box (2) is further provided with an unlocking part for releasing the matched locking of the buckle part and the locking part. The buckle part is a movable plate (5) provided on the outer wall of the inner box (1), and the locking part is a fixed plate (6) fixed on the inner wall of the outer box (2), the fixed plate (6) is used for limiting the extension direction of the movable plate (5), and the inner box (1) is fixed relative to the outer box (2) when the movable plate (5) abuts against the fixed plate (6). One end of the movable plate (5) is connected with the inner box (1), and the other end is an abutting part (7) used for abutting against the fixed plate (6), and the movable plate (5) is foldably arranged on the outer wall of the inner box (1). The unlocking part is a window (8) provided on the outer wall of the outer box (2) and communicated with the inner cavity (3), and the window (8) is arranged on the side of the outer box (2) close to the fixed plate (6), and the orthographic projection of the movable plate (5) and the window (8) at least partially overlaps when the movable plate (5) abuts against the fixed plate (6). The abutting part (7) is in an arc shape, and the position of the top end of the abutting part (7) corresponds to the position of the window (8) when the abutting part (7) abuts against the fixed plate (6).

2. A pack according to claim 1, wherein: The inner diameter of the window (8) is smaller than the radius of the abutting part (7).

3. The package of claim 1, wherein: The movable plate (5) and the inner box (1) are made of paper material, and the movable plate (5) and the inner box (1) are integrally formed by bending.