A cold storage cover for vegetables and fruits for a ship and a method for using the same

By designing a cold storage-type refrigerated hood for transporting fruits and vegetables, and using a foldable frame and cold storage plate, the problems of large size and power requirement of compression refrigeration equipment are solved. This achieves portability, flexibility, efficient temperature control, and energy saving and environmental protection, and is suitable for various transportation and storage scenarios.

CN122191876APending Publication Date: 2026-06-12RES INST 708 OF CHINA STATE SHIPBUILDING CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RES INST 708 OF CHINA STATE SHIPBUILDING CORP
Filing Date
2026-04-28
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing compression refrigeration equipment is bulky and requires power, making it unsuitable for short-distance transportation and temporary storage of fruits and vegetables.

Method used

A cold storage refrigerated cover for transporting fruits and vegetables on ships has been designed, including a foldable frame and a detachable insulation cover. It uses cold storage plates and phase change materials to maintain a low-temperature environment by releasing the cold energy of the phase change materials. The equipment is foldable to save space and is suitable for various transportation and storage scenarios.

Benefits of technology

It achieves portability, flexibility, efficient temperature control, energy saving and environmental protection, and strong adaptability, making it suitable for scenarios such as shipping, agricultural markets, and emergency medicine delivery, while reducing energy consumption and equipment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of ship sea supply, and discloses a cold storage cover for vegetable and fruit transfer of a ship, which comprises a rack and a heat preservation cover, the heat preservation cover is covered outside the rack, the heat preservation cover is detachably connected with the rack, and a cold storage plate is arranged on the rack. The rack is designed in a hinged mode and comprises vertical plates which are parallel to each other, cross hinges are arranged between the vertical plates, the vertical plates can be folded and stored through the hinges, hooks are arranged on the top of the rack, and the rack is connected with the heat preservation cover through the hooks. The foldable rack of the cold storage cover for vegetable and fruit transfer can be folded and stored after use, space is saved, and the cold storage cover is particularly suitable for limited space scenes such as ships. Users can select cold storage plates with different numbers and types according to different storage requirements, flexibly adjust temperature intervals, and adapt to various transportation and storage scenes.
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Description

Technical Field

[0001] This invention relates to the field of marine replenishment technology, specifically to a cold storage hood for transferring fruits and vegetables on ships and its usage method. Background Technology

[0002] When fruits and vegetables are transported by ship, they may stay in the ship's transfer area for several hours after being taken out of the cold storage. Under the high temperature conditions outside, the fruits and vegetables are prone to wilting and rotting.

[0003] Existing traditional compression refrigeration equipment is bulky and heavy, making it inconvenient for short-distance transportation and temporary storage of fruits and vegetables; traditional refrigeration equipment usually has a fixed temperature zone, making it difficult to meet the storage needs of multiple items at the same time; it requires continuous power supply, consumes a lot of energy, and is not suitable for environments without power. Summary of the Invention

[0004] The technical problem to be solved by this invention is that existing compression refrigeration equipment is bulky and requires a power source, making it unsuitable for the short-distance transportation and temporary storage of fruits and vegetables.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is to provide a cold storage refrigeration cover for transporting fruits and vegetables on ships, including a frame and an insulation cover. The insulation cover covers the outside of the frame and is detachably connected to the frame. The frame is provided with a cold storage plate.

[0006] Optionally, the frame is a hinged design, including parallel vertical plates with cross hinges between them, allowing for foldable storage. The top of the frame is equipped with hooks, which connect the frame to the insulation cover.

[0007] Optionally, the frame has a groove made of angle steel between each vertical plate, and a sliding groove is provided on one side of the frame, through which the cold storage plate is detachably inserted.

[0008] Optionally, the frame is provided with clips for securing the cold storage plate.

[0009] Optionally, the heat insulation cover is composed of multiple heat insulation sheets connected by zippers, and its bottom is connected to the frame by hooks.

[0010] Optionally, the insulation cover is made of fire-retardant cloth and built-in insulation material, wherein the built-in insulation material is rubber and plastic insulation cotton.

[0011] Optionally, the frame is made of 304 stainless steel, the cold storage plate is a fillable structure, and its packaging material is polyethylene.

[0012] Optionally, the frame is equipped with casters at the bottom.

[0013] Optionally, the bottom of the frame is provided with claws.

[0014] A method for using a ship-mounted cold storage refrigerated cover for transferring fruits and vegetables includes the following steps:

[0015] S1. Place the cold storage plate in a low-temperature cold storage room and continue cooling for 10 hours to allow the cold storage material to fully enter the solid-state cold storage state. S2. Unfold the frame and fix it to the bottom of the fruit and vegetable basket or cargo basket using pins; S3. Insert the cold storage plate that has completed the cold storage process into the slide groove on the inner wall of the frame to ensure that it is fixed firmly. S4. Connect the insulation cover to the top and bottom of the frame using hooks, and pull the four zippers to form a sealed space; S5. The cold storage plate maintains the low-temperature environment inside the cold storage hood by releasing the cold energy of the phase change material. S6. After use, remove the cold storage plate and put it back into the cold storage for re-cold storage; unzip the insulation cover and fold it for storage; fold the frame for storage.

[0016] In summary, the present invention has at least one of the following beneficial effects: 1. Portability and flexibility The foldable rack of the fruit and vegetable transfer refrigeration hood can be folded and compressed for storage after use, saving space and making it particularly suitable for confined spaces such as ships. Users can choose different quantities and types of cold storage plates according to different storage needs, flexibly adjusting the temperature range to adapt to various transportation and storage scenarios.

[0017] 2. Highly efficient temperature control performance The refrigeration hood uses high-efficiency insulation materials to effectively reduce heat loss and maintain a stable low-temperature storage environment even in high-temperature conditions, extending the temporary storage time of fruits and vegetables in the middle of the cold chain. The cold storage plate uses phase change materials to store cold energy, and can still maintain a low-temperature environment for a long time without an external power supply, effectively avoiding high costs caused by power outages or the use of high-energy-consuming equipment.

[0018] 3. Energy-saving and environmentally friendly Compared to traditional compression refrigeration equipment, cold storage refrigeration hoods significantly reduce energy consumption through natural cold release and energy-saving modes. Using a food-grade HDPE shell and reusable phase change materials ensures no harmful substances are released during use, meeting green environmental protection standards.

[0019] 4. Strong adaptability Adaptable to various transportation and storage scenarios: Not only suitable for shipping, but also for agricultural markets, cold chain transportation, and emergency medicine delivery. By selecting cold storage plates with different phase change temperatures, different temperature zones can be controlled to meet the preservation needs of different types of goods.

[0020] 5. Improve ease of operation The foldable rack with casters allows users to use it flexibly in different scenarios.

[0021] 6. Reliability The equipment is made of 304 stainless steel frame and waterproof, moisture-proof, removable insulation material, ensuring that it can be used in harsh environments and is suitable for the severe environmental conditions that need to be dealt with during marine transportation.

[0022] 7. Reduce usage costs By adopting cold storage technology, the equipment can maintain a low temperature without continuous power consumption, effectively reducing the operating costs of refrigeration equipment. Because the refrigeration hood has fewer mechanical parts and adopts a modular design, it is easy to maintain and replace. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the ship-mounted cold storage vegetable and fruit transfer refrigeration cover of the present invention; Figure 2 This is a schematic diagram illustrating the usage method of the ship-mounted cold storage vegetable and fruit transfer refrigeration cover of the present invention; Figure 3 This is a schematic diagram of the folding structure of the ship-mounted cold storage vegetable and fruit transfer refrigeration cover of the present invention; In the picture: 1. Frame; 2. Insulation cover; 3. Cold storage plate; 4. Casters; 5. Foot claws; 6. Vegetable and fruit basket. Detailed Implementation

[0024] The following combination Figure 1-3 The present invention will be described in further detail below.

[0025] This invention discloses a ship-mounted cold storage refrigeration cover for transferring fruits and vegetables, with reference to Figure 1 and Figure 3 It includes a frame 1 and an insulation cover 2. The insulation cover 2 covers the outside of the frame 1 and is detachably connected to the frame 1. The frame 1 is equipped with a cold storage plate 3.

[0026] In a further embodiment, the frame 1 is a hinged design, including parallel vertical plates with cross hinges between them, allowing for foldable storage. A hook is located at the top of the frame 1, connecting it to the insulation cover 2. Angle steel grooves are provided between the vertical plates of the frame 1, and a sliding groove is provided on one side of the groove, into which the cold storage plate 3 is detachably inserted. The frame 1 has clips for securing the cold storage plate 3, and casters 4 are located at the bottom of the frame 1.

[0027] Specifically, the main body of frame 1 is made of 304 stainless steel, which is corrosion-resistant, impact-resistant, and has high support strength. Combined with casters 4 and built-in hinge design, it achieves both mobility and structural stability. Through the hinge design, frame 1 can be folded for storage when not in use, significantly reducing space occupation. The top of frame 1 is equipped with hooks for connecting the detachable insulation cover 2. The bottom is equipped with adjustable feet 5 (optional) for secure connection with the vegetable and fruit cage. Frame 1 is a foldable design. Angle steel is used to build plate grooves in the hollowed-out parts of frame 1. Cold storage plates 3 can be inserted into the top and side walls and fixed by a "snap-on + sliding groove" structure to ensure stability. When using the equipment, the pre-cooled cold storage plates 3 are snapped into the plate grooves, and can be removed after use. Cold storage plate storage cabinets can be set up in the ship's low-temperature warehouse for convenient storage and cold storage of cold storage plates.

[0028] In a further embodiment, the heat insulation cover 2 is composed of multiple heat insulation sheets connected by zippers, and its bottom is connected to the frame 1 by hooks; the heat insulation cover 2 is made of fireproof and flame-retardant cloth and built-in heat insulation material, and its built-in heat insulation material is rubber and plastic heat insulation cotton.

[0029] Specifically, the detachable insulation cover 3 is composed of fire-retardant cloth and built-in insulation material. The fire-retardant cloth has the characteristics of tear resistance, water resistance, and moisture resistance. The built-in insulation material is made of rubber and plastic insulation cotton with a thickness of 5cm and a thermal conductivity as low as 0.03W / (m·K), which has both flexibility and good heat insulation performance. The detachable insulation cover 3 is connected on all four sides by zippers, and the bottom is fixed to the foldable frame 1 with hooks. The top is aligned and connected with the cold storage plate trough.

[0030] The cold storage plate 3 has a flat plate structure and is inserted into the plate slot of the frame 1 via a sliding groove. The number and distribution of plates can also be flexibly adjusted according to actual needs to meet different temperature control requirements. The cold storage plate 3 is designed to be refillable, and can be refilled if cold storage is lost during use. The packaging material of the cold storage plate 3 is made of high-density polyethylene, which complies with the food industry hygiene standard GB. The requirements of 4806.7-2023 "Plastic Materials and Products for Food Contact" apply; dimensions can be customized according to actual usage needs; depending on the ambient temperature, the interior is filled with cold storage materials with different phase change temperatures. The low-temperature cold storage plate uses cold storage materials with a phase change temperature of -13℃, suitable for low-temperature fruit and vegetable preservation, such as bok choy, Chinese cabbage, cabbage, apples, pears, oranges, etc., and can ensure that the internal temperature rise of the fruit and vegetable frame 6 loaded with fruits and vegetables does not exceed 5℃ within 10 hours (initial temperature is 2℃); the high-temperature cold storage plate uses cold storage materials with a phase change temperature of -5℃, suitable for high-temperature fruit and vegetable preservation, such as cucumbers, loofahs, eggplants, pineapples, pumpkins, winter melons, etc., and can ensure that the internal temperature rise of the fruit and vegetable frame 6 loaded with fruits and vegetables does not exceed 5℃ within 10 hours (initial temperature is 10℃).

[0031] The method of using the ship-mounted cold storage vegetable and fruit transfer refrigeration cover of the present invention is as follows: Figure 2 This includes the following steps: Cold storage plate cold storage process S1. Place the cold storage plate 3 in a low-temperature cold storage (the temperature of the cold storage is lower than the phase change temperature of the cold storage material) and continue to cool it for 10 hours to allow the cold storage material to fully enter the solid-state cold storage state. Refrigerator cover installation process S2. Unfold the frame 1 and fix the frame 1 to the bottom of the fruit and vegetable basket 6 or the cargo basket using pins; Specifically, the frame 1 completely covers the fruit and vegetable basket from top to bottom, and the bottom of the frame 1 is equipped with a pin to fix it to the bottom of the fruit and vegetable basket 6. S3. Insert the cold storage plate 3, which has completed the cold storage process, into the groove in the inner wall of the frame 1 to ensure that it is fixed firmly. S4. Connect the heat insulation cover 2 to the top and bottom of the frame 1 via hooks, and pull the four-sided zipper to form a sealed space; Temperature control process S5, the cold storage plate 3 maintains the low-temperature environment inside the cold storage hood by releasing the cold energy of the phase change material; Operation completion process S6. After use, remove the cold storage plate 3 and put it back into the cold storage for re-cold storage; unzip the insulation cover 2 and fold it for storage; fold the frame 1 for storage to reduce space occupation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A ship-mounted cold storage refrigerated cover for transferring fruits and vegetables, characterized in that, It includes a frame (1) and a heat insulation cover (2), the heat insulation cover (2) covers the outside of the frame (1), the heat insulation cover (2) is detachably connected to the frame (1), and the frame (1) is provided with a cold storage plate (3).

2. The shipborne cold storage vegetable and fruit transfer refrigeration hood according to claim 1, characterized in that, The frame (1) is a hinged design, including parallel vertical plates with cross hinges between them, which enable foldable storage. The top of the frame (1) is provided with hooks, and the frame (1) is connected to the heat insulation cover (2) through the hooks.

3. The ship-mounted cold storage vegetable and fruit transfer refrigeration hood according to claim 2, characterized in that, The frame (1) has a groove made of angle steel between each vertical plate, and a sliding groove is provided on one side of the frame (1). The cold storage plate (3) is detachably inserted into the sliding groove.

4. The ship-mounted cold storage vegetable and fruit transfer refrigeration hood according to claim 3, characterized in that, The frame (1) is provided with clips for fixing the cold storage plate (3).

5. The ship-mounted cold storage vegetable and fruit transfer refrigeration hood according to claim 1, characterized in that, The heat insulation cover (2) is composed of multiple heat insulation sheets connected by zippers, and its bottom is connected to the frame (1) by hooks.

6. The shipborne cold storage vegetable and fruit transfer refrigeration hood according to claim 5, characterized in that, The heat insulation cover (2) is made of fireproof and flame-retardant cloth and built-in heat insulation material, the built-in heat insulation material being rubber and plastic heat insulation cotton.

7. The ship-mounted cold storage vegetable and fruit transfer refrigeration hood according to claim 1, characterized in that, The frame (1) is made of 304 stainless steel, and the cold storage plate (3) is a fillable structure with polyethylene as its packaging material.

8. The shipborne cold storage vegetable and fruit transfer refrigeration hood according to claim 1, characterized in that, The frame (1) is equipped with casters (4) at the bottom.

9. The shipborne cold storage vegetable and fruit transfer refrigeration hood according to claim 1, characterized in that, The bottom of the frame (1) is provided with claws (5).

10. A method of using a ship-mounted cold storage type refrigerated hood for transferring fruits and vegetables, characterized in that, Includes the following steps: S1. Place the cold storage plate (3) in a low-temperature cold storage room and continue to cool it for 10 hours to allow the cold storage material to fully enter the solid state of cold storage. S2. Unfold the frame (1) and fix the frame (1) to the bottom of the fruit and vegetable box (6) or the cargo box with pins; S3. Insert the cold storage plate (3) that has completed the cold storage into the inner wall groove of the frame (1) to ensure that it is fixed firmly. S4. Connect the heat insulation cover (2) to the top and bottom of the frame (1) through the hooks, and pull the four zippers to form a sealed space; S5, Cold storage plate (3) maintains the low temperature environment inside the cold storage hood by releasing the cold energy of the phase change material; S6. After use, take out the cold storage plate (3) and put it back into the cold storage for re-cold storage; unzip the heat insulation cover (2) and fold it for storage; fold the frame (1) for storage.