Multi-layer food packaging box

Abstract

The utility model belongs to the technical field of packaging boxes, and particularly relates to a multi-layer food packaging box which is characterized in that a packaging box body comprises a lower layer, a middle layer and an upper layer, an overturning part is formed at the top of the middle layer, a clamping part capable of overturning inwards and outwards through the overturning part is arranged outside the overturning part, and the clamping part can be contained in the lower layer after being overturned inwards; the clamping part is turned outwards and then is reversely buckled on the lower layer; when the overturning part and the clamping part are overturned inwards, the middle layer and the lower layer can be smoothly covered, the containing effect of the middle layer in the lower layer is ensured, the overturning part and the clamping part can be reversely buckled on the outer clamping ring after being unfolded to form external matching, at the moment, the lower layer and the middle layer can be conveniently taken at the same time, the middle layer can be conveniently and rapidly taken out from the lower layer, and use flexibility and convenience are improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, specifically relating to a multi-layer food packaging box. Background Technology

[0002] Food packaging boxes are containers used to package and protect food, and are typically made of materials such as paper, plastic, metal, and glass. They not only ensure that food is not contaminated during transportation and storage, but also extend its shelf life and provide convenience for consumers.

[0003] A multi-layered lunchbox consists of a lower layer, a middle layer, and an upper layer. The upper and lower layers are interlocked, and the middle layer is placed inside the lower layer. When food is stored in the middle layer, it is difficult or not easy to take it out, and it may tip over when it is taken out.

[0004] To address the aforementioned issues, this application proposes a multi-layer food packaging box. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a multi-layer food packaging box that improves the stability and flexibility of the middle layer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer food packaging box, the packaging box body including a lower layer, a middle layer and an upper layer, the top of the middle layer is formed with a flip-up part, the outside of the flip-up part is provided with a locking part that can be flipped inside and outside the flip-up part, the locking part can be accommodated inside the lower layer after flipping inward, and the locking part can be flipped outward and inverted on the lower layer.

[0007] As a preferred technical solution of this utility model, an inner retaining ring is formed at the upper end of the inner side of the lower layer, which supports the engaging part in the inward flipping state.

[0008] As a preferred embodiment of this utility model, an outer retaining ring is formed on the outer side of the lower layer, the engaging part is flipped outward and snapped onto the outer retaining ring, and an upper retaining ring is provided on the outer side of the upper layer to engage with the outer retaining ring.

[0009] As a preferred embodiment of this utility model, the bottom of the middle layer is provided with supporting ribs.

[0010] Compared with the prior art, the beneficial effects of this utility model are: when the flipping part and the locking part are flipped inward, the middle layer and the lower layer can be smoothly covered, ensuring the middle layer's containment effect inside the lower layer. After the flipping part and the locking part are unfolded, they can be flipped onto the outer locking ring to form an external fit. At this time, it is convenient to take out the lower layer and the middle layer at the same time and to quickly remove the middle layer from the lower layer, improving the flexibility and convenience of use. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a structural diagram showing the disassembled parts of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention.

[0014] Figure 3 for Figure 1 A structural diagram of the front view;

[0015] Figure 4 This is a schematic diagram of the structure viewed from below.

[0016] Figure 5 This is a structural diagram of the middle layer viewed from below;

[0017] Figure 6 This is a schematic diagram of the structure viewed from above.

[0018] In the diagram: 1. Lower layer; 11. Inner retaining ring; 12. Outer retaining ring; 2. Middle layer; 21. Flipping part; 22. Engaging part; 3. Upper layer; 31. Upper retaining ring. Detailed Implementation

[0019] 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. Example

[0020] Please see Figure 1-6 The present invention provides the following technical solution: a multi-layer food packaging box, the packaging box body includes a lower layer 1, a middle layer 2 and an upper layer 3, the top of the middle layer 2 is formed with a flipping part 21, and the outside of the flipping part 21 is provided with a locking part 22 that can be flipped inside and outside the flipping part 21. After the locking part 22 is flipped inward, it can be accommodated inside the lower layer 1, and after the locking part 22 is flipped outward, it is flipped upside down on the lower layer 1.

[0021] Specifically, an inner retaining ring 11 is formed on the upper inner side of the lower layer 1, which supports the engaging part 22 in the inward-folded state. In this embodiment, since the top opening of the lower layer 1 is larger than the bottom shape, the inner retaining ring 11 supports the engaging part 22.

[0022] Specifically, an outer retaining ring 12 is formed on the outer side of the lower layer 1, and the engaging part 22 is flipped outward and snapped onto the outer retaining ring 12. The upper layer 3 is provided with an upper retaining ring 31 that engages with the outer retaining ring 12 on the outer side. In this embodiment, the outer retaining ring 12 and the upper retaining ring 31 can only cover each other when the engaging part 22 is flipped inward.

[0023] Specifically, a support rib is formed at the bottom of the middle layer 2. In this embodiment, the support rib can form a support between the tabletop and the middle layer 2. Food can be directly stored inside the middle layer 2, and it is not easy to cool down.

[0024] The working principle and usage process of this utility model are as follows: After the flipping part 21 and the locking part 22 are flipped inward, the middle layer 2 is placed inside the lower layer 1 and the locking part 22 is supported in the inner locking ring 11. The middle layer 2 is completely placed inside the lower layer 1. The upper layer 3 is locked with the outer locking ring 12 through the upper locking ring 31 to close the entire packaging box.

[0025] After the middle layer 2 and the locking part 22 are flipped outward, the locking part 22 can be flipped upside down on the outside of the outer locking ring 12, which makes it easy to take out the lower layer 1 and the middle layer 2. At the same time, the middle layer 2 can also be taken out from the lower layer 1 when the locking part 22 is flipped outward, which improves the convenience of use.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-layer food packaging box, the packaging box body comprising a lower layer (1), a middle layer (2), and an upper layer (3), characterized in that: The top of the middle layer (2) is formed with a flip-up part (21), and the outside of the flip-up part (21) is provided with a locking part (22) that can be flipped inside and outside the flip-up part (21). When the locking part (22) is flipped inside, it can be accommodated inside the lower layer (1), and when the locking part (22) is flipped outward, it is upside down on the lower layer (1).

2. A multi-layer food packaging box according to claim 1, characterized in that: The lower layer (1) has an inner retaining ring (11) formed on the upper inner side, which supports the engaging part (22) in the inward flipped state.

3. A multi-layer food packaging box according to claim 1, characterized in that: The lower layer (1) has an outer retaining ring (12) formed on its outer side. The engaging part (22) is flipped outward and snapped onto the outer retaining ring (12). The upper layer (3) has an upper retaining ring (31) on its outer side that engages with the outer retaining ring (12).

4. A multi-layer food packaging box according to claim 1, characterized in that: The bottom of the middle layer (2) has a supporting rib.

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