A cold accumulation type simple cold chain distribution heat preservation box

By introducing modular ice boxes, dry ice boxes, and vacuum pumps into the insulated box, combined with a movable partition design, the problem of existing insulated boxes being unable to maintain low temperatures and food sticking together has been solved, enabling low-temperature food delivery and high-quality preservation.

CN224676727UActive Publication Date: 2026-08-25XINJIANG YUANXIANG AGRI TECH CO LTD
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Patent Information

Application Number
CN202521781280.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-08-25
Estimated Expiration
2035-08-20

AI Technical Summary

Technical Problem

Existing insulated delivery boxes cannot maintain a low-temperature environment, resulting in a decrease in food freshness. Food becomes mixed and sticky inside the box, making it difficult to sort and put in, and it is easily damaged when taken out.

Method used

A minimalist cold chain delivery insulated box with cold storage technology was designed. It uses modular ice boxes, modular dry ice boxes and a micro vacuum pump to create a low-temperature and low-oxygen environment. The internal space is divided by movable partitions to achieve classified storage and low-temperature delivery of food.

Benefits of technology

It enables low-temperature delivery and high-quality preservation of food, reduces food sticking and loss, and improves the convenience of classified storage and retrieval.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cold -stored simple and easy cold chain distribution heat preservation box, including the shell, the top movable cover of shell is equipped with the box cover, the middle part of box cover is installed with micro vacuum pump, the inner wall of shell is provided with the intermediate layer, the inner wall of intermediate layer is provided with the composite coating, the inboard of composite coating is provided with the inner box, the inner wall of inner box is provided with a plurality of insertion slot, the inboard slidingly connected of insertion slot has movable baffle, the inside movable of inner box is embedded with a plurality of module ice box and a plurality of module dry ice box, the both sides outer wall of shell all is provided with the handle. The utility model discloses be provided with a series of structure to food low -temperature distribution and high -quality fresh -keeping can be realized to reduce the probability that food appears adhesion because of close together, can realize the classification of food and put in, reduce the probability that food appears loss because of adhesion and pull when taking out, food is convenient to take out from the heat preservation box.
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Description

Technical Field

[0001] This utility model relates to the field of insulated delivery boxes, specifically a simple cold chain insulated delivery box with cold storage function. Background Technology

[0002] With the rise of community group buying and the increase in the variety of food, traditional insulated delivery boxes can no longer guarantee the freshness and prevent spoilage of products, thus failing to meet the needs of cold chain delivery of fresh food and affecting the efficiency of cold chain delivery. Therefore, it is necessary to transform and upgrade the insulated delivery boxes.

[0003] Existing insulated delivery boxes typically use a single-layer outer shell and an inner heat-conducting lining to keep food warm. This method is only suitable for keeping heated food warm during delivery. Furthermore, the overall thickness of the box is relatively thin, resulting in poor overall heat insulation and making it unsuitable for low-temperature delivery and high-quality preservation of food. In addition, the internal space of existing insulated delivery boxes is usually not divided, causing some food items to mix and stick together when placed inside the box. This makes it difficult to sort food items into categories, and food is also prone to damage when being pulled or stuck together when being removed from the box. Utility Model Content

[0004] The purpose of this utility model is to provide a simple cold chain delivery insulated box with cold storage to solve the problems mentioned in the background art, such as the inability to maintain a low-temperature delivery environment, which affects the freshness of food, and the food in the insulated box sticking together due to being close together, making it inconvenient to put the food in and take it out later.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a simple cold chain delivery insulated box with cold storage, including an outer shell, a lid that is movable on the top of the outer shell, a micro vacuum pump installed in the middle of the lid, an intermediate layer on the inner wall of the outer shell, a composite coating on the inner wall of the intermediate layer, an inner box on the inner side of the composite coating, multiple slots on the inner wall of the inner box, movable partitions slidably connected to the inner side of the slots, multiple modular ice boxes and multiple modular dry ice boxes that are movably embedded inside the inner box, and handles on both outer walls of the outer shell.

[0006] Preferably, an insulation board is provided at the bottom of the box lid, and the insulation board is located above the inner box.

[0007] Preferably, a locking assembly is installed on the front of the connection between the lid and the outer shell, and the lid is locked to the outer shell by the locking assembly.

[0008] Preferably, a threaded cylinder extends through the top of the modular ice box, the interior of the threaded cylinder communicates with the interior of the modular ice box, and a threaded cap is movably threaded onto the top of the threaded cylinder.

[0009] Preferably, the top of the module dry ice box is slidably connected to a sliding cover, and the top of the sliding cover has multiple air holes.

[0010] Preferably, there are multiple movable partitions, each with a different size, and the movable partitions are slidably connected to the inner box via slots.

[0011] Preferably, the top of the inner box has an opening, and the air inlet of the micro vacuum pump communicates with the interior of the inner box through the opening.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This simple cold chain delivery insulated box uses modular ice boxes, modular dry ice boxes, and a micro vacuum pump. After the food is assembled, the micro vacuum pump extracts the air from the insulated box. Then, the low temperature generated by the modular ice boxes and the carbon dioxide overflowing from the modular dry ice boxes create a low-temperature, low-oxygen environment inside the insulated box that is conducive to the preservation of fruits and vegetables, thereby achieving low-temperature delivery and high-quality preservation of food.

[0014] 2. This simple cold chain delivery insulated box with cold storage features movable partitions, an inner box, and slots. The partitions divide the inside of the box into multiple independent spaces, allowing different types of food to be placed in the box separately. This prevents food from being mixed and piled up inside the box, reducing the probability of food sticking together due to close contact. It also enables food to be placed in categories and reduces the probability of food being damaged due to sticking when it is taken out, making it easier to remove food from the box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the miniature vacuum pump and locking assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the slot and movable partition structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the modular ice box and modular dry ice box of this utility model.

[0019] In the diagram: 1. Insulation board; 2. Miniature vacuum pump; 3. Lid; 4. Locking assembly; 5. Outer shell; 6. Handle; 7. Middle layer; 8. Composite coating; 9. Inner box; 10. Movable partition; 11. Slot; 12. Modular ice box; 13. Modular dry ice box; 14. Threaded cylinder; 15. Threaded cover; 16. Sliding cover; 17. Air vent. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown, this embodiment of the cold storage simplified cold chain delivery insulated box includes an outer shell 5, which is the outermost structure of the insulated box. The surface of the outer shell 5 is provided with vertical anti-collision strips, and the overall structure is made of polypropylene, providing excellent impact resistance. The surface of the outer shell 5 is also provided with a reflective film to block external radiant heat. A lid 3 is movable on the top of the outer shell 5, and the lid 3 is made of the same material as the outer shell 5. A miniature vacuum pump 2 is installed in the middle of the lid 3, with its outlet located at the top of the lid 3, allowing air to be extracted from the outer shell 5. The miniature vacuum pump 2 is detachable and can be charged via a USB cable to ensure normal operation. An intermediate layer 7 is provided on the inner wall of the outer shell 5. The intermediate layer 7 uses aerogel composite insulation material, and the inner wall of the intermediate layer 7 is provided with a composite coating 8, which consists of chitosan, nano-zinc oxide, and sodium polyacrylate. The structure includes chitosan and nano zinc oxide to inhibit mold growth inside the insulated box, and sodium polyacrylate to absorb moisture generated in the inner box 9, thus preventing condensation on fruits and vegetables. The inner box 9 is located inside the composite coating 8 and is detachable, allowing for more flexible adjustment of the internal space. Multiple slots 11 are provided on the inner wall of the inner box 9, and movable partitions 10 are slidably connected to the inner side of the slots 11. After the movable partitions 10 are inserted into different slots 11, the original space in the inner box 9 can be adjusted again, thus meeting the needs of food classification and improving the flexibility of food classification in this insulated box. Multiple modular ice boxes 12 and multiple modular dry ice boxes 13 are movably embedded inside the inner box 9. The modular ice boxes 12 are filled with phase change refrigerant, and different temperature zone refrigerants can be added as needed. The modular dry ice boxes 13 are filled with dry ice. Handles 6 are provided on both sides of the outer wall of the outer shell 5.

[0024] Specifically, the bottom of the lid 3 is provided with an insulation board 1, which is located above the inner box 9. The function of the insulation board 1 is to cover the top of the inner box 9 and to allow the lid 3 to be embedded in the outer shell 5 for a tight fit, which helps to ensure the sealing of the lid 3 and the outer shell 5 after they are locked together.

[0025] Furthermore, a locking assembly 4 is installed on the front of the connection between the lid 3 and the outer shell 5. The lid 3 is locked to the outer shell 5 through the locking assembly 4, so that the inside of the insulated box can be in a relatively sealed environment, which is conducive to the formation of a low temperature and high carbon dioxide environment inside the insulated box, thereby realizing the low temperature delivery and high quality preservation of food.

[0026] Furthermore, a threaded cylinder 14 extends through the top of the modular ice box 12, and the interior of the threaded cylinder 14 communicates with the interior of the modular ice box 12. A threaded cap 15 is movably threaded onto the top of the threaded cylinder 14, which facilitates the loading of the phase change refrigerant into the modular ice box 12 and also facilitates the replacement of the phase change refrigerant in different temperature zones.

[0027] Furthermore, a sliding cover 16 is slidably connected to the top of the modular dry ice box 13. The top of the sliding cover 16 has multiple air holes 17. The function of the air holes 17 is to allow the dry ice inside the modular dry ice box 13 to release cold energy and carbon dioxide, thereby achieving a low-temperature environment inside the insulated box.

[0028] Furthermore, there are multiple movable partitions 10, each with a different size. The movable partitions 10 are slidably connected to the inner box 9 via slots 11. The function of the movable partitions 10 is to divide the interior of the inner box 9 into spaces of different sizes, which is conducive to classifying and placing food into the insulated box, while reducing the loss caused by food sticking and pulling, and making it easier to remove the food later.

[0029] Furthermore, the top of the inner box 9 has an opening, through which the air inlet of the micro vacuum pump 2 communicates with the interior of the inner box 9, allowing the micro vacuum pump 2 to extract air from the inner box 9 to achieve a low-oxygen environment in the inner box 9.

[0030] The usage method of this embodiment is as follows: When using this cold storage type simple cold chain delivery insulated box, you can first insert the movable partition 10 into different slots 11 on the inner wall of the inner box 9 according to the type and quantity of food to be put in, so that the interior of the inner box 9 is divided into independent spaces of different sizes. Then, the modular ice box 12 and the modular dry ice box 13, along with the food, can be placed into the different spaces in the inner box 9 in an orderly manner. After the food and the modular ice box 12 and the modular dry ice box 13 are put in, the box lid 3 can be flipped over and placed on the top of the outer shell 5. Then, the box lid 3 and the outer shell 5 are locked together by the locking assembly 4. At this time, the insulation plate 1 at the bottom of the box lid 3 will be embedded above the inner box. Then, the micro vacuum pump 2 is started, so that the micro vacuum pump 2 extracts the air in the insulated box, so that the interior of the insulated box can form a low temperature and low oxygen environment. As the carbon dioxide in the modular dry ice box 13 is continuously released through the air hole 17, the interior of the insulated box can form a low temperature, low oxygen and high carbon dioxide environment, so that the food in the delivery insulated box can be kept fresh during the delivery process.

[0031] 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 simple cold chain distribution insulated box with cold storage function, comprising an outer shell (5), characterized in that: The top of the outer shell (5) is equipped with a box cover (3), and a micro vacuum pump (2) is installed in the middle of the box cover (3). The inner wall of the outer shell (5) is provided with an intermediate layer (7), and the inner wall of the intermediate layer (7) is provided with a composite coating (8). The inner side of the composite coating (8) is provided with an inner box (9). The inner wall of the inner box (9) is provided with multiple slots (11), and the inner side of the slots (11) is slidably connected with a movable partition (10). The inner box (9) is movably embedded with multiple modular ice boxes (12) and multiple modular dry ice boxes (13). The outer walls on both sides of the outer shell (5) are provided with handles (6).

2. The cold storage type simplified cold chain distribution insulated box according to claim 1, characterized in that: The bottom of the box cover (3) is provided with a heat insulation board (1), which is located above the inner box (9).

3. The cold storage type simplified cold chain distribution insulated box according to claim 1, characterized in that: A locking assembly (4) is installed on the front of the connection between the box cover (3) and the outer shell (5), and the box cover (3) is locked to the outer shell (5) by the locking assembly (4).

4. The simplified cold chain distribution insulated box with cold storage as described in claim 1, characterized in that: The top of the modular ice box (12) is connected to a threaded cylinder (14), the interior of the threaded cylinder (14) is connected to the interior of the modular ice box (12), and a threaded cap (15) is movably threaded onto the top of the threaded cylinder (14).

5. A simplified cold chain distribution insulated box with cold storage as described in claim 1, characterized in that: The top of the module dry ice box (13) is slidably connected to a sliding cover (16), and the top of the sliding cover (16) has multiple air holes (17).

6. The cold storage type simplified cold chain distribution insulated box according to claim 1, characterized in that: The number of movable partitions (10) is set to multiple, and the multiple movable partitions (10) are of different sizes. The movable partitions (10) are slidably connected to the inner box (9) through slots (11).

7. A simple cold chain distribution insulated box with cold storage as described in claim 1, characterized in that: The top of the inner box (9) has an opening, and the air inlet of the micro vacuum pump (2) is connected to the interior of the inner box (9) through the opening.