Prefabricated vegetable packaging box with efficient heat preservation layer

Abstract

The prefabricated vegetable packaging box with the efficient heat preservation layer comprises a plastic outer box, a supporting inner frame is fixedly installed in the plastic outer box, a food contact inner box is fixedly installed at the upper end opening of the plastic outer box in an embedded mode, and an inner aluminum foil heat preservation layer is fixedly installed in the plastic outer box. According to the prefabricated vegetable packaging box with the efficient heat preservation layer, the food contact inner box and the plastic outer box are of a double-layer structure, and inert gas is filled between the food contact inner box and the plastic outer box, so that the heat conduction capacity between the food contact inner box and the plastic outer box is greatly reduced, and a better heat preservation effect is achieved; the plastic outer box is not in contact with the food, the inner box in contact with the food can be repeatedly recycled after being split, and the aluminum foil heat preservation inner box in contact with the food can also be recycled after being melted, so that the environment-friendly effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing box technical field, especially a prefabricated dish packing box with high -efficient heat preservation layer. BACKGROUND

[0002] The prefabricated dish packing box is distinguished from many kinds of materials, such as aluminium foil, has good barrier property, can effectively prevent oxygen, moisture into, keep the freshness of prefabricated dish, also has certain heat preservation performance, can maintain dish temperature to a certain extent, plastic, common PP, PS, PET and other materials. PP material has good high temperature resistance, can be used for prefabricated dish packing that needs to be heated for eating, and PS material has high transparency, is convenient for consumer to directly observe dish appearance, in addition, there is paper, and the packing box of the three kinds of materials at the present stage although all has certain heat preservation, but its heat preservation performance is still not good enough, because dish directly contacts packing box, is very easy to make dish temperature dissipate to outside air through packing box, and the air circulation speed of packing box outside is fast, is very easy to make temperature dissipate, for this purpose, we propose a prefabricated dish packing box with high -efficient heat preservation layer. SUMMARY

[0003] The main purpose of the utility model is to provide a prefabricated dish packing box with high -efficient heat preservation layer, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0005] A prefabricated dish packing box with high -efficient heat preservation layer, including the plastic outer box, the inside fixed mounting of plastic outer box has the support inner frame, the upper port embedding fixed mounting of plastic outer box has the food contact inner box.

[0006] Preferably, the inside fixed mounting of plastic outer box has an inner aluminium foil heat preservation layer.

[0007] Preferably, the upper port fixed mounting of plastic outer box has an outer box edge sealing.

[0008] Preferably, the food contact inner box includes a plastic film, a contact aluminium foil heat preservation inner box and an inner box edge sealing, the outer surface fixed mounting of contact aluminium foil heat preservation inner box has a plastic film, and the upper port fixed mounting of contact aluminium foil heat preservation inner box has an inner box edge sealing.

[0009] Preferably, the food contact inner box is fixedly installed with the plastic outer box through the inner box edge sealing and the outer box edge sealing.

[0010] Preferably, the plastic film outside is filled with inert gas between the plastic outer box inside.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In this invention, the pre-packaged food with high-efficiency insulation layer has a double-layer structure consisting of a food-contact inner box and a plastic outer box, with an inert gas filling between the two layers. This greatly reduces the heat conduction between the two layers, resulting in better insulation. Furthermore, the plastic outer box does not come into contact with the food and can be reused multiple times after being disassembled from the food-contact inner box. The aluminum foil-insulated inner box can also be melted and reused, making it more environmentally friendly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a pre-made food packaging box with a high-efficiency heat insulation layer according to this utility model;

[0014] Figure 2 This is a disassembled view of a pre-prepared food packaging box with a high-efficiency heat insulation layer according to this utility model;

[0015] Figure 3 This is a partial cross-sectional view of the inner food contact box of a pre-made food packaging box with a high-efficiency heat insulation layer according to this utility model.

[0016] Figure 4 This is a partial cross-sectional view of the plastic outer box of a pre-made food packaging box with a high-efficiency heat insulation layer according to this utility model.

[0017] In the diagram: 1. Plastic outer box; 11. Inner aluminum foil insulation layer; 12. Outer box edge sealing; 2. Supporting inner frame; 3. Food contact inner box; 31. Plastic film; 32. Contact aluminum foil insulation inner box; 33. Inner box edge sealing. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Example 1:

[0020] like Figures 1-4 As shown, a pre-made food packaging box with a high-efficiency heat insulation layer includes a plastic outer box 1. A supporting inner frame 2 is fixedly installed inside the plastic outer box 1. The supporting inner frame 2 is mainly used to support the plastic film 31 and the aluminum foil insulated inner box 32, so as to prevent the food from squeezing the plastic film 31 and the aluminum foil insulated inner box 32 downward and contacting the inner surface of the plastic outer box 1. A food contact inner box 3 is embedded and fixedly installed at the upper port of the plastic outer box 1.

[0021] An inner aluminum foil insulation layer 11 is fixedly installed inside the plastic outer box 1, which can further insulate the heat.

[0022] The upper port of the plastic outer box 1 is fixedly installed with the outer box sealing edge 12;

[0023] The food contact inner box 3 comprises a plastic film 31, a contact aluminum foil heat preservation inner box 32 and an inner box sealing edge 33, the outer surface of the contact aluminum foil heat preservation inner box 32 is fixedly installed with the plastic film 31, and the upper end of the contact aluminum foil heat preservation inner box 32 is fixedly installed with the inner box sealing edge 33;

[0024] The food contact inner box 3 is fixedly installed with the plastic outer box 1 through the inner box sealing edge 33 and the outer box sealing edge 12 and heated and pressed;

[0025] Inert gas is filled between the outer side of the plastic film 31 and the inner side of the plastic outer box 1, the inert gas has poor heat conduction performance, can effectively prevent the temperature of dishes in the box from being reduced, and thus has good heat preservation effect, and the inner box sealing edge 33 and the outer box sealing edge 12 can be packaged in an environment full of inert gas at normal pressure, so that the plastic film 31 and the inner side of the plastic outer box 1 can be filled with inert gas.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-packaged food box with a high-efficiency heat insulation layer, characterized in that: The application relates to a plastic outer box (1), the inside of the plastic outer box (1) is fixedly installed with a supporting inner frame (2), the upper end of the plastic outer box (1) is embeddedly fixedly installed with a food contact inner box (3), the food contact inner box (3) comprises a plastic coating film (31), a contact aluminum foil heat preservation inner box (32) and an inner box sealing edge (33), the outer surface of the contact aluminum foil heat preservation inner box (32) is fixedly installed with the plastic coating film (31), and the upper end of the contact aluminum foil heat preservation inner box (32) is fixedly installed with the inner box sealing edge (33).

2. The pre-cooked food package with high-efficiency insulation layer according to claim 1, characterized in that: The inside of the plastic outer box (1) is fixedly installed with an inner aluminum foil heat preservation layer (11).

3. The pre-cooked food package with high-efficiency insulation layer according to claim 2, characterized in that: The upper end of the plastic outer box (1) is fixedly installed with an outer box sealing edge (12).

4. The pre-cooked food package with high-efficiency insulation layer according to claim 3, characterized in that: The food contact inner box (3) is fixedly installed with the plastic outer box (1) through heat pressing of the inner box sealing edge (33) and the outer box sealing edge (12).

5. The pre-cooked food package with high-efficiency insulation layer according to claim 4, characterized in that: The outside of the plastic coating film (31) is filled with inert gas between the inside of the plastic outer box (1).

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