A can packaging preservation structure for vegetable products

Abstract

The utility model discloses a kind of canned packaging fresh-keeping structures for vegetable products, including outer can body, inner can body and aerogel layer, the outside of outer can body is fixed with a layer of heat insulation coating, heat insulation coating is formed using ceramic heat insulation paint spraying, vacuum heat insulation cavity is provided in outer can body, the inside of outer can body is fixed with inner can body, aerogel layer is fixed between outer can body and inner can body.The utility model forms multiple heat insulation structures by the ceramic heat insulation coating of outer can body outside, the vacuum heat insulation cavity inside, the aerogel layer between outer can body and inner can body, can effectively block external heat, vegetable products can be prevented from high temperature spoilage.

Description

Technical Field

[0001] This utility model relates to the field of vegetable canning technology, and in particular to a structure for preserving the freshness of canned vegetable products. Background Technology

[0002] Canned vegetables are foods made by washing, chopping, and pre-cooking fresh vegetables, then packing them into sealed containers and sterilizing them at high temperatures. They not only retain most of the original nutrients of the vegetables, such as vitamins and dietary fiber, but also have the advantages of long shelf life and convenient consumption. They are practical as quick side dishes for everyday meals or portable food for outdoor excursions. Common canned vegetable products include canned tomatoes, canned mushrooms, and canned green beans.

[0003] Existing vegetable product packaging cans rely on a single material structure for insulation, which is insufficient to effectively block external heat intrusion and easily leads to spoilage of the vegetables inside due to high external temperatures. Therefore, in view of the above situation, there is an urgent need to develop a multi-layered insulation structure for canned vegetable products. This structure consists of a ceramic heat-insulating coating on the outside of the can, an internal vacuum heat-insulating cavity, and an aerogel layer between the outer and inner cans. This structure can effectively block external heat and prevent vegetables from spoiling due to high temperatures, thus overcoming the shortcomings of current applications and meeting current needs. Utility Model Content

[0004] The purpose of this invention is to provide a preservation structure for canned vegetable products to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A canned food packaging preservation structure for vegetable products includes an outer can, an inner can, and an aerogel layer. A heat-insulating coating is fixed on the outer side of the outer can. The heat-insulating coating is made by spraying ceramic heat-insulating paint. A vacuum heat-insulating cavity is provided inside the outer can. An inner can is fixed on the inner side of the outer can. An aerogel layer is fixed between the outer can and the inner can.

[0006] Preferably, the top of the outer tank is detachably connected to a top cover via threads, and a sealing ring is fixed to the inner side of the top cover, with the sealing ring pressing against the top opening of the outer tank.

[0007] Preferably, both the outer tank and the inner tank are made of aluminum alloy.

[0008] Preferably, a polypropylene layer is fixed to the inner side of the inner tank.

[0009] The beneficial effects of this utility model are as follows: This canned food packaging and preservation structure for vegetables allows for storage by placing the vegetables inside the inner can and loosening the top lid for sealing. The heat-insulating coating initially isolates external heat, reducing heat transfer inwards. A vacuum insulation cavity further isolates the heat, and an aerogel layer provides a final barrier, thus preventing the vegetables inside the inner can from spoiling due to high external temperatures. In summary, this utility model utilizes a multi-layered heat-insulating structure formed by the ceramic heat-insulating coating on the outer can, the internal vacuum insulation cavity, and the aerogel layer between the outer and inner cans. This effectively blocks external heat and prevents vegetables from spoiling due to high temperatures. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is an internal sectional view of the present invention.

[0012] Figure 3 This utility model Figure 2 A partial view at point A in the middle.

[0013] Legend: 1. Outer tank; 101. Vacuum insulation cavity; 102. Insulation coating; 2. Top cover; 201. Sealing ring; 3. Inner tank; 301. Polypropylene layer; 4. Aerogel layer. Detailed Implementation

[0014] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Specific implementation examples are given below.

[0016] See Figures 1-3In this embodiment of the present invention, a canned food packaging and preservation structure for vegetable products includes an outer can 1, an inner can 3, and an aerogel layer 4. A heat-insulating coating 102 is fixed to the outer side of the outer can 1. The heat-insulating coating 102 is made of ceramic heat-insulating paint spraying, thereby reducing the transfer of external heat to the surface of the outer can 1. A vacuum heat-insulating cavity 101 is provided inside the outer can 1 to further improve the heat insulation performance. The inner can 3 is fixed to the inner side of the outer can 1. An aerogel layer 4 is fixed between the outer can 1 and the inner can 3 to further insulate against heat. The interior of the inner can 3 is used to store vegetable products. A polypropylene layer 301 is fixed to the inner side of the inner can 3. The polypropylene layer 301 is non-toxic, heat-resistant, and has good chemical resistance.

[0017] The top of the outer tank 1 is detachably connected to a top cover 2 by threads. A sealing ring 201 is fixed on the inner side of the top cover 2. The sealing ring 201 is pressed against the top opening of the outer tank 1 to maintain a seal.

[0018] Both the outer tank 1 and the inner tank 3 are made of aluminum alloy, which gives them good strength and relatively light weight.

[0019] Working principle: This canned food packaging preservation structure for vegetable products is used to store vegetable products in the inner can 3 and seal it by loosening the top cover 2. The heat insulation coating 102 initially isolates the external heat and reduces the heat transmission inward. The vacuum heat insulation cavity 101 isolates the heat again, and the aerogel layer 4 blocks the heat again, thereby preventing the vegetables in the inner can 3 from spoiling due to the high external temperature.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A preservation structure for canned vegetable products, characterized in that, It includes an outer tank (1), an inner tank (3) and an aerogel layer (4). A heat insulation coating (102) is fixed on the outside of the outer tank (1). The heat insulation coating (102) is made by spraying ceramic heat insulation paint. A vacuum heat insulation cavity (101) is provided inside the outer tank (1). The inner tank (3) is fixed on the inside of the outer tank (1). An aerogel layer (4) is fixed between the outer tank (1) and the inner tank (3).

2. The preservation structure for canned vegetable products according to claim 1, characterized in that, The top of the outer tank (1) is detachably connected to a top cover (2) by threads. A sealing ring (201) is fixed on the inner side of the top cover (2), and the sealing ring (201) is pressed against the top opening of the outer tank (1).

3. The preservation structure for canned vegetable products according to claim 1, characterized in that, Both the outer tank (1) and the inner tank (3) are made of aluminum alloy.

4. The preservation structure for canned vegetable products according to claim 1, characterized in that, A polypropylene layer (301) is fixed on the inner side of the inner tank (3).

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