Packaging box with self-locking structure

Abstract

The utility model relates to the technical field of packaging boxes, in particular to a packaging box with a self-locking structure, which comprises a first box body and a second box body, a first opening is formed in the bottom surface of the first box body, and at least two buckling grooves are symmetrically formed in the side surface of the first box body; a second opening is formed in the top surface of the second box body, a buckle bulge is arranged on the side surface of the second box body in an outward protruding manner, and the buckle bulge is matched with the buckle groove; when the buckle protrusion is pressed, the buckle protrusion can retract towards the inner side of the second box body. When the buckle bulge is loosened, the buckle bulge can be automatically popped up and reset; the first opening is packaged towards the second opening, the side wall of the first box body compresses the buckle protrusion, when the buckle groove reaches the position of the buckle protrusion, the buckle protrusion automatically pops up and is clamped into the buckle groove to form self-locking, and therefore packaging self-locking of the first box body and the second box body is achieved. After the first box body is closed with the second box body, automatic locking is achieved, sealing stickers are not needed, the risk that products fall off can be reduced, and the packaging box can be repeatedly used.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, and in particular relates to a packaging box with a self-locking structure. Background Technology

[0002] Packaging boxes are containers for consumer goods and belong to the outer packaging of consumer goods. The practicality and aesthetics of consumer goods packaging can affect the sales market of consumer goods to a certain extent, and also determine the grade and consumer group of consumer goods to a certain extent. The rationality of its design and the beauty and refinement of its style and structure have an important impact on the market positioning and market expansion of consumer goods.

[0003] In existing technology, top-and-bottom box designs are quite common. These boxes typically consist of a top box and a bottom box. The product is placed inside the bottom box, and then the top box is closed from the top, leaving the top box exposed. When moving the box, the exposed top box is usually lifted. If the bottom box isn't supported, it can slip and fall, damaging the product inside. Current solutions involve adding a sealing sticker to the bottom opening of the box to prevent the bottom box from falling off. However, these stickers are usually disposable, making it inconvenient for users to reuse the box, and the process is somewhat complicated.

[0004] Therefore, this utility model addresses the aforementioned technical problems by providing a packaging box with a self-locking structure. The top box and bottom box automatically lock together after being closed, eliminating the need for sealing stickers. This not only reduces the risk of products falling but also allows the packaging box to be reused, thus solving the above-mentioned problems. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a packaging box with a self-locking structure, comprising:

[0006] The first box body has a first opening on its bottom surface and at least two snap-fit ​​slots symmetrically provided on its side surface.

[0007] The second box has a second opening on its top surface and a buckle protrusion protruding outward from its side, the buckle protrusion being adapted to the buckle groove;

[0008] Pressing the latching protrusion causes it to retract inwards towards the second housing; releasing the latching protrusion causes it to automatically pop out and reset.

[0009] The first opening is sealed to the second opening. The side wall of the first box compresses the buckle protrusion. When the buckle groove reaches the position of the buckle protrusion, the buckle protrusion automatically pops out and engages with the buckle groove to form a self-locking mechanism, thereby enabling the first box and the second box to achieve packaging self-locking.

[0010] Optionally, the second box body is formed by vacuum forming or cardboard forming, and the buckle protrusion is integrally formed with the second box body.

[0011] Optionally, the upper end of the latching protrusion is formed as a guide portion, the guide portion is provided as an inclined surface, and the guide portion guides the first box body forward and compresses the latching protrusion.

[0012] Optionally, the buckle groove is triangular, circular, rectangular, or polygonal.

[0013] Optionally, the second housing is provided with a mounting base, the buckle protrusion is installed in the mounting base and extends outward, the back of the buckle protrusion is provided with an elastic layer, and the elastic layer is firmly connected to the bottom surface of the mounting base.

[0014] Optionally, the elastic layer is made of EVA, pearl cotton, sponge, or compression spring.

[0015] Optionally, the interior of the second box is formed as a receiving cavity, and an inner liner box is disposed in the receiving cavity for placing the product.

[0016] Optionally, the inner liner box is provided with a product cavity for placing products.

[0017] Optionally, the buckle groove is only provided on both sides of the first box body, and the buckle protrusion is only provided on both sides of the second box body.

[0018] Optionally, the latching slot is located close to the first opening, and the latching protrusion is located away from the second opening; or,

[0019] The buckle groove is located away from the first opening, and the buckle protrusion is located close to the second opening.

[0020] The technical solution of this utility model has the following advantages or beneficial effects:

[0021] This utility model provides a packaging box with a self-locking structure, comprising a first box body and a second box body. The bottom surface of the first box body has a first opening, and at least two symmetrically arranged snap-fit ​​slots are provided on the sides of the first box body. The top surface of the second box body has a second opening, and snap-fit ​​protrusions protrude outward from the sides of the second box body, fitting into the snap-fit ​​slots. Pressing the snap-fit ​​protrusion retracts it inward from the second box body; releasing the snap-fit ​​protrusion allows it to automatically pop out and reset. The first opening seals the second opening, and the side wall of the first box body compresses the snap-fit ​​protrusion. When the snap-fit ​​slot reaches the position of the snap-fit ​​protrusion, the snap-fit ​​protrusion automatically pops out and engages with the snap-fit ​​slot, forming a self-locking mechanism, thus achieving self-locking between the first and second box bodies. The first box body automatically locks when the second box body is closed, eliminating the need for sealing stickers, reducing the risk of product falling, and allowing for reuse of the packaging box. Pressing the snap-fit ​​protrusion and lifting the first box body completes the opening process, making operation convenient. Attached Figure Description

[0022] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0023] Figure 1 This is a closed view of the packaging box with a self-locking structure according to this utility model;

[0024] Figure 2 This is a schematic diagram of the packaging box with a self-locking structure of this utility model in its split state;

[0025] Figure 3 This is a schematic diagram of the assembly state of the packaging box with a self-locking structure according to this utility model;

[0026] Figure 4 This is a partial cross-sectional view of the second box body of this utility model;

[0027] Figure 5 This is a structural diagram of the second box body of this utility model equipped with an inner liner box.

[0028] Illustration:

[0029] 1. First box body; 2. Second box body; 3. Snap-on groove; 4. Snap-on protrusion; 5. Guide part; 6. Mounting base; 7. Elastic layer; 8. Inner liner box. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] In the description of this utility model, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] like Figure 1-5 As shown, an embodiment of this utility model provides a packaging box with a self-locking structure. The packaging box includes a first box body 1 and a second box body 2. The bottom surface of the first box body 1 has a first opening, and at least two snap-fit ​​grooves 3 are symmetrically provided on the side surface of the first box body 1. The top surface of the second box body 2 has a second opening, and snap-fit ​​protrusions 4 are provided on the side surface of the second box body 2, which are adapted to the snap-fit ​​grooves 3. When the snap-fit ​​protrusions 4 are pressed, they retract inwards towards the second box body 2. When the snap-fit ​​protrusions 4 are released, they automatically pop out and reset. The first opening closes to the second opening, and the side wall of the first box body 1 compresses the snap-fit ​​protrusions 4. When the snap-fit ​​grooves 3 reach the position of the snap-fit ​​protrusions 4, the snap-fit ​​protrusions 4 automatically pop out and engage with the snap-fit ​​grooves 3 to form a self-locking mechanism, thereby enabling the first box body 1 and the second box body 2 to achieve packaging self-locking. After the first box body 1 closes the second box body 2, it automatically locks without the need for sealing stickers, which not only reduces the risk of the product falling but also allows the packaging box to be reused. Press the buckle protrusion 4 and lift the first box body 1 to open the box. The operation is convenient.

[0035] Specifically, in this embodiment, both the first box 1 and the second box 2 are rectangular box structures. Both are made of cardboard material, cut and assembled using a mold. The cardboard has a certain degree of elasticity and can automatically spring back to its original shape after being pressed. The first box 1 is also called the top box, and the second box 2 is also called the bottom box. The bottom surface of the first box 1 has a first opening, and the top surface of the second box 2 has a second opening. During packaging, the first opening of the first box 1 is aligned with the second opening of the second box 2 for fitting, thus completing the product packaging. More specifically, the two opposite sides of the first box 1 are symmetrically provided with two triangular snap-fit ​​grooves 3, and the two opposite sides of the second box 2 are also provided with two triangular snap-fit ​​protrusions 4. The snap-fit ​​protrusions 4 protrude outwards from the outside of the box and are integrally formed with the second box 2. The shape of the latching protrusion 4 must be adapted to the shape of the latching groove 3, that is, the shape of the latching protrusion 4 must correspond to the shape of the latching groove 3, so that the latching protrusion 4 can be engaged in the latching groove 3; the number of latching protrusions 4 must be adapted to the number of latching grooves 3, that is, the number of latching protrusions 4 should be equal to the number of latching grooves 3, so that all latching grooves 3 are engaged by the corresponding latching protrusions 4, improving the locking ability of the box; the position of the latching protrusion 4 must be adapted to the position of the latching groove 3, that is, the position of the latching protrusion 4 must match the position of the latching groove 3, so that after the latching protrusion 4 is engaged in the latching groove 3, the first opening is flush with the bottom surface of the second box body 2, and the packaging box only exposes the outer surface of the first box body 1 in the overall appearance. In this embodiment, since the box body is made of cardboard, and the cardboard has a certain degree of extensibility after being spliced ​​into the box body, the latching protrusion 4 can retract to the inside of the second box body 2 when pressed; when the latching protrusion 4 is released, the latching protrusion 4 can automatically pop out and reset.

[0036] Furthermore, in this embodiment, during packaging, the first box 1 encloses the second box 2, with the first opening sealing the second opening. The first box 1 slides downwards, compressing the snap-fit ​​protrusion 4 on its side wall. The snap-fit ​​protrusion 4 retracts, and the first box 1 continues to slide downwards. When the snap-fit ​​groove 3 reaches the position of the snap-fit ​​protrusion 4, the snap-fit ​​protrusion 4 automatically pops out and engages with the snap-fit ​​groove 3 to form a self-locking mechanism, thereby enabling the first box 1 and the second box 2 to achieve packaging self-locking. When it is necessary to open the box, the snap-fit ​​protrusions 4 on both sides of the second box 2 are pressed simultaneously, causing the snap-fit ​​protrusions 4 to retract. At this time, the first box 1 can be lifted, and further lifting of the first box 1 completes the opening. It should be noted that in some embodiments, the first box 1 and the second box 2 can also be integrally formed from plastic using a vacuum forming process. Vacuum-formed boxes also have high ductility and can also meet the automatic springback reset of the snap-fit ​​protrusion 4.

[0037] Furthermore, in this embodiment, the upper end of the latching protrusion 4 is formed as a guide portion 5, which is configured as an inclined surface. The guide portion 5 guides the first box body 1 forward and compresses the latching protrusion 4. Specifically, the latching protrusion 4 is a triangular protrusion, with one side of the latching protrusion 4 located near and parallel to the bottom edge of the second box. The apex of the latching protrusion 4 faces the second opening. Correspondingly, the latching groove 3 is a triangular through groove, with one side of the latching groove 3 close to and parallel to the first opening. The apex of the latching groove 3 faces the top surface of the first box body 1. This ensures the self-locking capability of the latching protrusion 4 and the latching groove 3, preventing the second box body 2 from coming off the first box body 1 when the first box body 1 is lifted. The apex of the latching protrusion 4 is processed into an inclined guide portion 5, which guides the first box body 1 to slide down and compress the latching protrusion 4, facilitating the continued sliding of the first box body 1.

[0038] Furthermore, in some embodiments, the shape of the latching groove 3 can also be circular, rectangular, or polygonal. When the shape of the latching groove 3 is circular, it can be a large circular hole, or it can be two or three circular holes adapted to the size of a finger, allowing the user to easily press the latching protrusion 4 with their fingers while simultaneously lifting the first box body 1 when opening the box. When the shape of the latching groove 3 is rectangular, polygonal, or elliptical, one side of the latching groove 3 must be flush with the first opening to ensure the self-locking capability of the latching protrusion 4 and the latching groove 3.

[0039] Furthermore, in some embodiments, the second box body 2 is provided with a mounting base 6, and the snap-fit ​​protrusion 4 is installed in the mounting base 6 and extends outward. An elastic layer 7 is provided on the back of the snap-fit ​​protrusion 4, and the elastic layer 7 is firmly connected to the bottom surface of the mounting base 6. The elastic layer 7 is made of EVA, pearl cotton, sponge, or compression spring. Specifically, the mounting base 6 is recessed inward on the side of the second box body 2. At this time, the material of the second box body 2 does not need to be restricted to cardboard or blister packaging, and can be made of rigid materials, which can further improve the reusability of the packaging box. The snap-fit ​​protrusion 4 is adapted to the mounting base 6 for assembly and extends outward. By providing an elastic layer 7 on the back of the snap-fit ​​protrusion 4, the telescopic effect of the snap-fit ​​protrusion 4 can also be achieved. That is, an elastic layer 7 is firmly installed on the back of the snap-fit ​​protrusion 4, and the elastic layer 7 is then firmly installed on the bottom surface of the mounting base 6. In this way, when the snap-fit ​​protrusion 4 is pressed, the snap-fit ​​protrusion 4 compresses the elastic layer 7 and retracts towards the bottom surface of the mounting base 6, so that the first box body 1 can be smoothly fitted onto the second box body 2. When the latching groove 3 reaches the latching protrusion 4, due to the rebound force of the elastic layer 7, the latching protrusion 4 automatically pops out and latches into the latching groove 3, thus forming a self-locking mechanism. More specifically, the elastic layer 7 can be one of EVA, pearl cotton, sponge, or a compression spring. When using EVA, pearl cotton, or sponge to form the elastic layer 7, the elastic material can be fastened to the mounting base 6 and the latching protrusion 4 by adhesive bonding, ensuring that the latching protrusion 4 protrudes from the outer side of the second housing 2 in the relaxed state. When using a compression spring as the elastic layer 7, the two ends of the compression spring are respectively connected to the mounting base 6 and the latching protrusion 4, and the latching protrusion 4 also protrudes from the outer side of the second housing 2.

[0040] Furthermore, in this embodiment, the interior of the second box body 2 is formed as a receiving cavity, and an inner liner box 8 is disposed within the receiving cavity for placing the product. The inner liner box 8 is provided with a product cavity for placing the product. Specifically, in order to facilitate the packaging box in storing and protecting the product, an inner liner box 8 is provided inside the second box body 2, and the inner liner box 8 is provided with a product cavity. The inner liner box 8 is assembled within the receiving cavity of the second box body 2, and the product is stably placed within the product cavity of the inner liner box 8.

[0041] Furthermore, in this embodiment, the latching groove 3 is only provided on both sides of the first box body 1, and the latching protrusion 4 is also only provided on both sides of the second box body 2. The latching groove 3 is located close to the first opening, and the latching protrusion 4 is located away from the second opening; or, the latching groove 3 is located away from the first opening, and the latching protrusion 4 is located close to the second opening. Specifically, in order to facilitate the user's smooth operation of pressing the latching protrusion 4 when opening the box, both the latching groove 3 and the latching protrusion 4 are only provided on both sides of the box body. Of course, the two sides can be opposite sides or adjacent sides. Preferably, the latching groove 3 is located close to or away from the first opening, and the latching protrusion 4 is correspondingly located away from or close to the second opening.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A packaging box with a self-locking structure, characterized in that, include: The first box body has a first opening on its bottom surface and at least two snap-fit ​​slots symmetrically provided on its side surface. The second box has a second opening on its top surface and a buckle protrusion protruding outward from its side, the buckle protrusion being adapted to the buckle groove; Pressing the latching protrusion causes it to retract inwards towards the second housing; releasing the latching protrusion causes it to automatically pop out and reset. The first opening is sealed to the second opening. The side wall of the first box compresses the buckle protrusion. When the buckle groove reaches the position of the buckle protrusion, the buckle protrusion automatically pops out and engages with the buckle groove to form a self-locking mechanism, thereby enabling the first box and the second box to achieve packaging self-locking.

2. The packaging box with a self-locking structure as described in claim 1, characterized in that, The second box body is formed by vacuum forming or cardboard forming, and the buckle protrusion is integrally formed with the second box body.

3. The packaging box with a self-locking structure as described in claim 1, characterized in that, The upper end of the buckle protrusion is formed as a guide portion, which is provided as an inclined surface. The guide portion guides the first box body forward and compresses the buckle protrusion.

4. The packaging box with a self-locking structure as described in claim 1, characterized in that, The buckle groove is triangular, circular, rectangular or polygonal.

5. The packaging box with a self-locking structure as described in claim 1, characterized in that, The second box body is provided with a mounting base, the buckle protrusion is installed in the mounting base and extends outward, the back of the buckle protrusion is provided with an elastic layer, and the elastic layer is firmly connected to the bottom surface of the mounting base.

6. The packaging box with a self-locking structure as described in claim 5, characterized in that, The elastic layer is made of EVA, pearl cotton, sponge, or compression spring.

7. The packaging box with a self-locking structure as described in claim 1, characterized in that, The interior of the second box is formed into a receiving cavity, and an inner liner box is disposed inside the receiving cavity for placing the product.

8. The packaging box with a self-locking structure as described in claim 7, characterized in that, The inner liner box is provided with a product cavity for placing products.

9. The packaging box with a self-locking structure as described in claim 1, characterized in that, The buckle grooves are only provided on the two sides of the first box body, and the buckle protrusions are only provided on the two sides of the second box body.

10. The packaging box with a self-locking structure as described in claim 1, characterized in that, The latching slot is positioned close to the first opening, and the latching protrusion is positioned away from the second opening; or... The buckle groove is located away from the first opening, and the buckle protrusion is located close to the second opening.

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