A multi-layered food packaging box

Abstract

A multi-layer food packaging box includes a base plate and an anti-slip silicone pad. The lower end of the base plate is fixedly connected to the anti-slip silicone pad, and the upper end of the base plate is fixedly connected to a first outer box. The inner wall of the first outer box is movably connected to an inner box, and a locking mechanism is connected to the outer wall of the first outer box. The first, second, and third outer boxes are connected at their upper ends. The silicone sealing rings on the connecting frames at the lower ends of the second and third outer boxes are attached to the inner side of the upper end of the inner box. After the sealing rings seal the upper end of the inner box, multiple knobs are manually rotated on the round block. The locking strips on the knobs slide into the slots on the inner wall of the fixing seat, locking the first, second, and third outer boxes together. Finally, a PP material cover plate is placed on the upper end of the third outer box. The connecting frame and silicone sealing ring at the lower end of the cover plate are inserted into the inner box inside the third or second outer box. The third outer box and the cover plate are locked together using the same locking mechanism. This allows for control over the number of different packaging box layers, expanding the range of applications for different packaging box layers.

Description

Technical Field

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

[0002] Food packaging is an integral part of food products and one of the main engineering processes in the food industry. It protects food from damage caused by biological, chemical, and physical external factors during its distribution from the factory to the consumer. It can also maintain the stable quality of the food itself, facilitate the consumption of food, and is the first thing that represents the appearance of the food, attracting consumers and possessing value beyond material cost.

[0003] For example, a multi-layer food packaging box with publication number "CN210734810U" solves the problem of existing multi-layer food packaging boxes being suitable for packaging various types and small quantities. It uses two fixed paper rods to fix and position multiple packaging boxes, and two first support paper rods and two second support paper rods to limit the position of multiple packaging boxes. The structure is simple and novel, convenient for users to take out food, and can be reused. However, considering that existing multi-layer food packaging boxes use four square support rods to limit the position of the multi-layer packaging boxes, the number of packaging box layers cannot be controlled due to the height limitation of the support rods, and the use effect is limited. Summary of the Invention

[0004] This invention aims to solve the problems existing in the prior art by providing a multi-layer food packaging box that can control the number of layers to achieve different usage quantities.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A multi-layer food packaging box is designed, including a base plate and an anti-slip silicone pad. The lower end of the base plate is fixedly connected to the anti-slip silicone pad, and the upper end of the base plate is fixedly connected to a first outer box. The inner wall of the first outer box is movably connected to the inner box, and a locking mechanism is connected to the outer wall of the first outer box.

[0007] To further improve the locking mechanism, a fixed base is provided. The outer wall of the fixed base is fixedly connected to the first outer box. A slot is machined on the inner wall of the fixed base. The inner wall of the slot is slidably connected to a locking strip. The outer wall of the locking strip is fixedly connected to a knob. The inner wall of the knob is rotatably connected to a circular block.

[0008] Further improvements include a fixed connection between the end of the circular block and the second outer box, and a sealing mechanism connected to the inner side of the inner box.

[0009] Further improvements include a silicone sealing ring, the outer wall of which is movably connected to the connecting frame, and the upper end of the connecting frame being fixedly connected to the second outer box.

[0010] Further improvements include a second outer box whose upper end is movably connected to a third outer box, and a third outer box whose upper end is movably connected to a cover plate.

[0011] As a further improvement, a handle is installed at the upper end of the cover plate.

[0012] The beneficial effects of this utility model are as follows: This utility model, through the interlocking of the upper ends of the first, second, and third outer boxes, and the silicone sealing rings on the connecting frames at the lower ends of the second and third outer boxes adhering to the inner side of the upper end of the inner box, seals the upper end of the inner box. Manually rotating multiple knobs on a circular block causes the locking strips on the knobs to slide into the slots on the inner wall of the fixing base, achieving a locking effect between the first, second, and third outer boxes. Finally, a PP material cover plate is placed on the upper end of the third outer box. After the connecting frame and silicone sealing ring at the lower end of the cover plate are inserted into the inner box inside the third or second outer box, a locking mechanism with the same locking mechanism locks the third outer box and the cover plate together. This allows for control over the number of different packaging box layers, expanding the application range of different packaging box layer numbers. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the interior of the first outer box;

[0015] Figure 3 for Figure 2 A three-dimensional schematic diagram of the inner box;

[0016] Figure 4 for Figure 2 Enlarged sectional view of the middle cover plate:

[0017] Figure 5 for Figure 1 Enlarged 3D view of the central locking mechanism:

[0018] Figure 6 for Figure 1 Enlarged view of the central sealing mechanism.

[0019] Explanation of reference numerals in the attached diagram: 1. Base plate, 2. Anti-slip silicone pad, 3. First outer box, 4. Inner box, 5. Locking mechanism, 501. Fixing base, 502. Slot, 503. Locking strip, 504. Knob, 505. Round block, 7. Sealing mechanism, 701. Silicone sealing ring, 702. Connecting frame, 703. Second outer box, 8. Third outer box, 9. Cover plate, 10. Handle. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Example 1:

[0022] See attached document Figure 1-6 In this embodiment, a multi-layer food packaging box includes a base plate 1 and an anti-slip silicone pad 2. The lower end of the base plate 1 is fixedly connected to the anti-slip silicone pad 2, and the upper end of the base plate 1 is fixedly connected to a first outer box 3. The inner wall of the first outer box 3 is movably connected to an inner box 4, and a locking mechanism 5 is connected to the outer wall of the first outer box 3.

[0023] The locking mechanism 5 includes a fixed base 501. The locking strip 503 on the knob 504 slides into the slot 502 on the inner wall of the fixed base 501, thereby achieving the locking effect between the second outer box 703 and the first outer box 3. The outer wall of the fixed base 501 is fixedly connected to the first outer box 3. The inner wall of the fixed base 501 is machined with a slot 502. The inner wall of the slot 502 is slidably connected to the locking strip 503. The outer wall of the locking strip 503 is fixedly connected to the knob 504. The inner wall of the knob 504 is rotatably connected to the round block 505.

[0024] The end of the round block 505 is fixedly connected to the second outer box 703. The inner side of the inner box 4 is connected to the sealing mechanism 7. The second outer box 703 is connected to the upper end of the first outer box 3. The silicone sealing ring 701 on the connecting frame 702 at the lower end of the first outer box 3 is attached to the inner side of the upper end of the inner box 4 to achieve sealing of the upper end of the inner box 4. The sealing mechanism 7 includes the silicone sealing ring 701. The outer wall of the silicone sealing ring 701 is movably connected to the connecting frame 702. The upper end of the connecting frame 702 is fixedly connected to the second outer box 703.

[0025] The upper ends of the first outer box 3, the second outer box 703, and the third outer box 8 are connected to each other. The silicone sealing ring 701 on the connecting frame 702 at the lower end of the second outer box 703 and the third outer box 8 is attached to the inner side of the upper end of the inner box 4. After the sealing ring 701 seals the upper end of the inner box 4, the multiple knobs 504 are manually rotated on the round block 505. The locking strip 503 on the knob 504 will slide into the slot 502 on the inner wall of the fixing seat 501, achieving a locking effect between the first outer box 3, the second outer box 703, and the third outer box 8. Finally, the PP material cover plate 9 is placed on the upper end of the third outer box 8. After the connecting frame 702 and the silicone sealing ring 701 at the lower end of the cover plate 9 are inserted into the inner box 4 inside the third outer box 8 or the second outer box 703, the third outer box 8 and the cover plate 9 are locked together by the same locking mechanism 5. This allows for control over the number of different packaging box layers, expanding the application range of different packaging box layer numbers.

[0026] The upper end of the second outer box 703 is movably connected to the third outer box 8, the upper end of the third outer box 8 is movably connected to the cover plate 9, and a handle 10 is installed on the upper end of the cover plate 9.

[0027] Working principle:

[0028] Using base plate 1 as the base layer, an anti-slip silicone pad 2 is added to the bottom to enhance the stability of the lower end. The first outer box 3 at the upper end of base plate 1 is made of PP material (polypropylene, temperature resistant -20°C to 120°C), and a 316 stainless steel inner box 4 is fitted inside to ensure the safety of the food placed in the inner box 4. At the same time, the second outer box 703 at the upper end is connected to the upper end of the first outer box 3. The silicone sealing ring 701 on the connecting frame 702 at the lower end of the first outer box 3 is attached to the inner side of the upper end of the inner box 4 to seal the upper end of the inner box 4. After manually turning the knob 504 on the round block 505, the locking strip 503 on the knob 504 will slide into the locking groove 502 on the inner wall of the fixing seat 501, so that the knob 504 and the fixing seat 501 are limited. The second outer box 703 is fixed to the first outer box 3, thus achieving a locking effect. Similarly, the connecting frame 702 and silicone sealing ring 701 with the same structure at the lower end of the third outer box 8 are installed on the upper end of the second outer box 703 in the same way, so that the second outer box 703 and the third outer box 8 are also sealed. The same locking mechanism 5 locks the second outer box 703 and the third outer box 8. Finally, the PP material cover plate 9 is placed on the upper end of the third outer box 8. After the connecting frame 702 and silicone sealing ring 701 at the lower end of the cover plate 9 are inserted into the inner box 4 inside the third outer box 8, the third outer box 8 and the cover plate 9 are locked with the same locking mechanism 5. The food preservation box composed of layers can be lifted by pulling the handle 10.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A multi-layer food packaging box, comprising a base plate (1) and an anti-slip silicone pad (2), wherein the lower end of the base plate (1) is fixedly connected to the anti-slip silicone pad (2), characterized in that: The upper end of the base plate (1) is fixedly connected to the first outer box (3), the inner wall of the first outer box (3) is movably connected to the inner box (4), and the outer wall of the first outer box (3) is connected to a locking mechanism (5).

2. The multi-layer food packaging box according to claim 1, characterized in that: The locking mechanism (5) includes a fixed base (501), the outer wall of the fixed base (501) is fixedly connected to the first outer box (3), the inner wall of the fixed base (501) is machined with a slot (502), the inner wall of the slot (502) is slidably connected to the slot strip (503), the outer wall of the slot strip (503) is fixedly connected to the knob (504), and the inner wall of the knob (504) is rotatably connected to the round block (505).

3. The multi-layer food packaging box according to claim 2, characterized in that: The end of the circular block (505) is fixedly connected to the second outer box (703), and the inner side of the inner box (4) is connected to a sealing mechanism (7).

4. The multi-layer food packaging box according to claim 3, characterized in that: The sealing mechanism (7) includes a silicone sealing ring (701), the outer wall of which is movably connected to the connecting frame (702), and the upper end of the connecting frame (702) is fixedly connected to the second outer box (703).

5. The multi-layer food packaging box according to claim 4, characterized in that: The upper end of the second outer box (703) is movably connected to the third outer box (8), and the upper end of the third outer box (8) is movably connected to the cover plate (9).

6. The multi-layer food packaging box according to claim 5, characterized in that: A handle (10) is installed at the upper end of the cover plate (9).

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