Packaging box

Abstract

The utility model relates to the technical field of packaging, and discloses a packaging box which comprises a containing box, the top of the containing box is rotationally connected with a sealing cover, a notch is formed in the outer portion of the sealing cover, the inner wall of the notch is rotationally connected with a convex buckle block, a notch is formed in the top of the containing box, a groove block is installed on the inner wall of the notch, and the convex buckle block is connected with the convex buckle block. The bottom of the convex buckling block is clamped with the inner wall of the groove block, the bottom of the sealing cover is fixedly connected with a clamping block, and the outer portion of the clamping block makes contact with the groove in the top of the containing box. According to the packaging box, the clamping block is matched with the groove in the containing box, reliable sealing of the containing box and the sealing cover is achieved, external air or pollutants are effectively prevented from entering the packaging box, the storage safety of objects is improved, and due to the attached design of the convex buckle block and the groove block, the connection firmness is enhanced in the sealing process.

Description

Technical Field

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

[0002] Made from high-quality environmentally friendly materials, the packaging box combines aesthetics and practicality, suitable for various scenarios, including gift packaging, food outer boxes, and other disposable packaging. The box structure is sturdy, providing excellent pressure resistance to ensure the contents remain intact during transportation and storage. The surface undergoes exquisite processing, and brand logos, promotional patterns, and other personalized designs can be customized to enhance brand image and product value. The packaging box's design is simple yet stylish, with smooth lines and appropriate color matching, fully embodying modern design concepts.

[0003] Based on their material and structural design, packaging boxes meet the needs of various scenarios by providing physical protection, sealing, and portability. Commonly used materials include plastics, paper, aluminum foil, and biodegradable materials (such as PLA), and they are manufactured through thermoforming, injection molding, or compression molding processes. The core functions of packaging boxes include protection, heat insulation, leak prevention, and food preservation, making them suitable for scenarios such as food delivery and medical aseptic packaging.

[0004] Traditional packaging boxes have a uniform appearance and do not easily leave obvious marks after use, especially on the box body or sealed parts. This defect makes it difficult for users to intuitively distinguish between unused and used packaging boxes, leading to food safety hazards, reuse risks, and resource waste. Therefore, a new type of packaging box is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a packaging box that aims to improve the problem that packaging boxes in the prior art do not easily leave obvious marks after use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A packaging box includes a receiving box, a sealing cover rotatably connected to the top of the receiving box, a slot is provided on the outside of the sealing cover, a protruding fastener is rotatably connected to the inner wall of the slot, a notch is provided on the top of the receiving box, a groove is installed on the inner wall of the notch, and the bottom of the protruding fastener engages with the inner wall of the groove.

[0008] A locking block is fixedly connected to the bottom of the sealing cover, and the outside of the locking block contacts the top groove of the receiving box;

[0009] The outer side of the convex buckle is connected to the groove of the sealing cover in a dotted manner, and the outer side of the recessed block is connected to the notch of the receiving box in a dotted manner.

[0010] This utility model has the following beneficial effects:

[0011] In this invention, the interlocking block engages with the groove on the container to achieve a reliable seal between the container and the sealing cap, effectively preventing the entry of external air or contaminants and improving the safety of stored items. Secondly, the fitting design of the protruding block and the grooved block enhances the strength of the connection during the sealing process, avoiding the risk of leakage due to poor sealing. At the same time, opening the sealing cap will cause the grooved block to detach from the notch of the container, leaving obvious signs of use, making it easy to quickly determine whether the packaging box has been used. This function effectively solves the problem of not being able to distinguish signs of use in the prior art, avoids food safety hazards and resource waste caused by repeated use, improves product safety and usage efficiency, and has good practical value and market prospects. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of a packaging box proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of a protruding buckle for a packaging box according to the present invention;

[0014] Figure 3 This is a schematic diagram illustrating the opening of a packaging box according to the present invention.

[0015] Figure 4 This is a schematic diagram of the locking structure of a packaging box proposed in this utility model.

[0016] Legend:

[0017] 1. Container box; 2. Sealing cover; 3. Protruding buckle block; 4. Groove block; 5. Locking block. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1 to 2This utility model provides an embodiment of a packaging box, including a receiving box 1. A sealing cover 2 is rotatably connected to the top of the receiving box 1. This connection method allows the sealing cover 2 and the receiving box 1 to form a rotatable opening and closing structure, which facilitates the user to complete the storage operation when using it for the first time. Since this is a one-time sealing structure, the connection between the sealing cover 2 and the receiving box 1 will produce irreversible minor marks due to rotation and contact, such as slight scratches or indentations on the surface. The sealing cover 2 has a groove on its outside. The groove design facilitates the connection of the protruding buckle 3 with it, so that the sealing cover 2 fits more firmly with the receiving box 1 in the one-time closed state, thereby improving the sealing effect.

[0020] The inner wall of the slot is rotatably connected to a protruding fastener 3. The top of the receiving box 1 has a notch, and the inner wall of the notch is fitted with a recessed block 4. The recessed block 4 provides more reliable support when it is installed on the inner wall of the notch and engages with the protruding fastener 3, thereby improving the overall firmness of the sealing box. The notch design provides a fixed position for the recessed block 4, so that it can better support the protruding fastener 3 during the sealing operation and ensure a tight seal. Once the sealing is completed, the edge of the notch will have a permanent engagement mark due to the embedding of the protruding fastener 3, which cannot be restored. The rotatable connection of the protruding fastener 3 can be flexibly adjusted to engage more precisely with the recessed block 4, thereby enhancing the stability of the structure. During the one-time sealing process, the engagement of the protruding fastener 3 will coincide with the recessed block 4, indicating that the structure has been locked.

[0021] When the sealing is completed, the surface of the groove block 4 will have a fixed indentation due to its contact with the convex buckle block 3, indicating that the sealing structure has been used. The bottom of the convex buckle block 3 is engaged with the inner wall of the groove block 4. This engagement method further strengthens the connection between the sealing cover 2 and the container box 1 during the sealing process, making the protection of the internal items better. Since it is for single use, the engagement point will have an indelible squeezing mark, indicating that the packaging box has been used.

[0022] A locking block 5 is fixedly connected to the bottom of the sealing cover 2. The locking block 5 ensures that the sealing cover 2 is in close contact with the top groove of the container 1 when closed, thereby preventing dust or air from entering the container. Once the seal is completed, the contact area between the locking block 5 and the groove will have a slight indentation or deformation, which cannot be restored to the initial state. The outside of the locking block 5 is in contact with the top groove of the container 1. This contact form further enhances the sealing performance between the container 1 and the sealing cover 2, effectively protecting the items during storage.

[0023] The outer surface of the protruding buckle 3 is connected to the groove of the sealing cover 2 in a dotted manner. The dotted connection increases the tightness of the buckle, making the sealing cover 2 and the container 1 firmly locked. However, during single use, the surface of the groove will be left with a fixed indentation due to the action of the dotted buckle, indicating that the packaging box has been used. The outer surface of the recessed block 4 is connected to the notch of the container 1 in a dotted manner. This connection method ensures that the recessed block 4 is accurately positioned in the sealed state, thereby further improving the sealing effect when storing items. Once the seal is completed and the box is opened, the recessed block 4 at the notch will detach, as part of the traces of use.

[0024] Working principle: When packaging is needed, the items to be stored and protected are placed inside the container 1. Then, by rotating the sealing cover 2, it moves and fits against the container 1. At this time, the locking block 5 contacts the groove on the container 1, locking the container 1 and the sealing cover 2 together, thus sealing them. During this process, the protruding buckle 3 also fits against the groove block 4, making the groove block 4 attached to the outside of the protruding buckle 3, improving the connection effect. Finally, when the items need to be removed, opening the sealing cover 2 will cause the groove block 4 to detach from the notch of the container 1, leaving traces of use. This makes it easy to distinguish used packaging boxes, avoiding food safety hazards, reuse risks, and resource waste.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packaging box, comprising a receiving box (1), characterized in that: The top of the container (1) is rotatably connected to a sealing cover (2), the outer side of the sealing cover (2) is provided with a slot, the inner wall of the slot is rotatably connected to a protruding fastener (3), the top of the container (1) is provided with a notch, the inner wall of the notch is installed with a groove block (4), and the bottom of the protruding fastener (3) engages with the inner wall of the groove block (4). The bottom of the sealing cover (2) is fixedly connected to a locking block (5), and the outside of the locking block (5) is in contact with the top groove of the receiving box (1); The outer side of the protruding buckle (3) is connected to the groove of the sealing cover (2) in a point-like manner, and the outer side of the recessed block (4) is connected to the notch of the receiving box (1) in a point-like manner.

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