Fresh-keeping transportation device

Abstract

The invention discloses a fresh-keeping transportation device, and relates to the technical field of fresh food fresh-keeping transportation, the fresh-keeping transportation device comprises a box body, a box cover and partition plates, the top of the box body is hermetically provided with the box cover through screws, T-shaped grooves are formed in the two side faces of the box body at equal intervals, the partition plates are arranged in the box body, and the two ends of the partition plates are inserted into the T-shaped grooves from top to bottom; a T-shaped groove is formed in the box body, a partition plate is arranged in the box body, the partition plate divides the interior of the box body into a left part and a right part, the left part and the right part are a vegetable fresh-keeping cabin and a seafood fresh-keeping cabin respectively, and an air conditioner external unit is installed on the outer wall of the box body. The T-shaped groove and the partition plate are arranged, and the partition plate and the T-shaped groove can divide the interior of the box body into the vegetable fresh-keeping cabin and the seafood fresh-keeping cabin; the double cabins share one refrigerating system, vegetables and seafood can be preserved, the limitation of one-cutting preservation in traditional mixed transportation is broken through, and the core requirements of fruits, vegetables and seafood are met at the same time through physical isolation and independent regulation and control.

Description

Technical Field

[0001] This invention relates to the field of fresh food preservation and transportation technology, specifically a fresh food preservation and transportation device. Background Technology

[0002] Vegetables and seafood are core categories of fresh food, and their preservation and transportation are crucial for ensuring food quality and reducing spoilage. Vegetable preservation requires precise control of low-oxygen, high-humidity, and low-ethylene environments to inhibit respiration and accelerate ripening. Seafood relies on low-temperature, high-humidity, and low-ammonia conditions to delay microbial growth and meat deterioration. Traditional preservation and transportation often adopts a "single-category independent transportation" or "mixed transportation without differentiated control" model: independent transportation can meet the needs of a single category, but it leads to repeated investment in cold chain resources (such as two refrigeration units or two controlled atmosphere systems), resulting in high transportation costs. Mixed transportation is prone to cross-contamination due to conflicting preservation requirements of the two types of goods (such as ethylene released by vegetables accelerating seafood spoilage, and ammonia from seafood metabolism corroding vegetables). Existing devices are mostly "one-size-fits-all" designs, using only a single temperature control or universal controlled atmosphere module for regulation, which cannot isolate harmful gases such as ethylene and ammonia, and it is difficult to maintain temperature and humidity in a coordinated manner (such as vegetables requiring high humidity but seafood requiring protection from water accumulation). Ultimately, this leads to a high rate of vegetable spoilage and seafood deterioration, resulting in a high overall loss rate. Therefore, there is an urgent need for a hybrid transportation device that can simultaneously meet the differentiated preservation needs of vegetables and seafood, avoid cross-contamination, and achieve efficient and coordinated control, so as to reduce losses and improve the economics of cold chain logistics. Summary of the Invention

[0003] The purpose of this invention is to provide a fresh-keeping transportation device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A refrigerated transport device includes a box body, a lid, and a partition plate. The lid is sealed to the top of the box body with screws. T-slots are equally spaced on both sides of the box body. A partition plate is installed inside the box body, with both ends of the partition plate inserted into the T-slots from top to bottom. The partition plate divides the box body into left and right sections, which are respectively a vegetable preservation compartment and a seafood preservation compartment. An air conditioner outdoor unit is installed on the outer wall of the box body. A T-connector is installed on the refrigerant charging port of the air conditioner outdoor unit, and the other two ends of the T-connector are respectively connected to a first refrigerant delivery system. The first refrigerant supply pipe is connected to the vegetable compartment air conditioner unit installed on the inner wall of the vegetable compartment, and the second refrigerant supply pipe is connected to the seafood compartment air conditioner unit installed on the inner wall of the seafood compartment. A vegetable compartment controlled atmosphere box is installed on the top of the vegetable compartment, and a seafood compartment controlled atmosphere box is installed on the top of the seafood compartment. Temperature and humidity sensors are installed in both the vegetable and seafood compartments. An ethylene concentration sensor and an oxygen concentration sensor are installed in the vegetable compartment, and an ammonia concentration sensor is installed in the seafood compartment.

[0005] As a further aspect of the present invention: a vegetable compartment door is installed at one end of the vegetable preservation compartment, and a seafood compartment door is installed at one end of the seafood preservation compartment.

[0006] As a further embodiment of the present invention: both the vegetable compartment door and the seafood compartment door are equipped with displays, and the seafood compartment door is also equipped with an electrical control cabinet.

[0007] As a further embodiment of the present invention: sealing strips are provided between the two ends of the partition plate and the T-slot.

[0008] As a further embodiment of the present invention: both the box body and the box cover include an outer layer, an inner layer and a sandwich layer, with a sandwich layer provided between the outer layer and the inner layer, and a cavity provided between the sandwich layer and the outer layer.

[0009] As a further embodiment of the present invention: the vegetable compartment modified atmosphere box includes a first box body, a first air inlet filter, a first exhaust fan, a molecular sieve layer and an ethylene adsorption layer. The first air inlet filter and the first exhaust fan are respectively installed on the two ends of the first box body. The molecular sieve layer and the ethylene adsorption layer are installed sequentially from front to back along the airflow direction inside the first box body.

[0010] As a further embodiment of the present invention: the modified atmosphere box of the seafood compartment includes a second box body, a second air inlet filter, a second exhaust fan, an activated carbon layer and a biological enzyme layer. The second air inlet filter and the second exhaust fan are respectively installed at both ends of the second box body. The activated carbon layer and the biological enzyme layer are installed sequentially from front to back along the airflow direction inside the second box body.

[0011] As a further embodiment of the present invention: the molecular sieve layer, ethylene adsorption layer, activated carbon layer and bioenzyme layer are all installed in a pull-out manner, and magnetic strips are embedded around the pull-out opening on the first and second boxes.

[0012] As a further aspect of the present invention: solenoid valves are respectively installed on the first refrigerant delivery pipe and the second refrigerant delivery pipe.

[0013] As a further embodiment of the present invention: an oxygen tank is installed on the lid of the container, and the outlet of the oxygen tank is connected to the vegetable preservation compartment through a pipeline, and an oxygen replenishment valve is installed on the pipeline.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a T-shaped groove and a partition plate to divide the interior of the container into two parts: a vegetable preservation compartment and a seafood preservation compartment. The two compartments share a single refrigeration system, which can preserve both vegetables and seafood. This invention breaks through the limitations of the traditional "one-size-fits-all" preservation method in mixed transportation. Through physical isolation and independent control, it can simultaneously meet the core needs of fruits, vegetables and seafood.

[0015] The present invention has several T-shaped slots evenly spaced on the inner walls of both sides of the box, which can facilitate the adjustment of the position of the partition plate. By adjusting the position of the partition plate, the volume ratio of the vegetable preservation compartment and the seafood preservation compartment can be changed to meet the transportation needs under different conditions.

[0016] This invention utilizes modified atmosphere packaging (MAP) boxes in both the vegetable and seafood compartments. The vegetable compartment MAP box employs molecular sieve adsorption, ethylene catalytic decomposition, and humidity linkage design to maintain a low-oxygen, low-ethylene, and high-humidity environment, inhibiting vegetable respiration and ethylene-induced ripening, thus extending shelf life. The seafood compartment MAP box controls low ammonia and high humidity through bio-enzyme decomposition of ammonia, activated carbon adsorption of odors, and dynamic humidification, inhibiting microbial growth and meat quality deterioration. The two boxes are independently regulated to avoid cross-contamination, and work synergistically to achieve highly efficient preservation during mixed transportation of fruits, vegetables, and seafood, significantly reducing cargo loss rates.

[0017] This invention enables real-time monitoring of temperature, humidity, ethylene concentration, and oxygen concentration within vegetable preservation compartments by installing temperature and humidity sensors, ethylene concentration sensors, and oxygen concentration sensors within seafood preservation compartments. Similarly, it enables real-time monitoring of temperature, humidity, and ammonia concentration within seafood preservation compartments by installing temperature and humidity sensors and ammonia concentration sensors. The monitoring results are displayed on the corresponding compartment doors for easy access by personnel. Furthermore, the invention connects to an air conditioner and controlled atmosphere box via an electrical control cabinet to regulate temperature, humidity, ethylene concentration, oxygen concentration, and ammonia concentration, resulting in better preservation of vegetables and seafood during transportation.

[0018] The present invention employs a combination design of outer layer, inner layer and sandwich layer for the box and lid, which makes the device have better heat insulation and cold preservation effects, thereby achieving the purpose of saving energy. Attached Figure Description

[0019] Figure 1 This is a top sectional view of a food preservation and transportation device.

[0020] Figure 2 This is a schematic diagram of the overall structure of a fresh-keeping and transport device.

[0021] Figure 3 This is a side sectional view of a fresh-keeping and transport device.

[0022] Figure 4 A type of fresh-keeping transport device Figure 3 A schematic diagram of the modified atmosphere box in the vegetable compartment.

[0023] Figure 5 A type of fresh-keeping transport device Figure 3 A schematic diagram of the modified atmosphere box in the seafood cabin of China.

[0024] Figure 6 A type of fresh-keeping transport device Figure 1Enlarged view of the structure at point A in the middle.

[0025] 1. Cabinet; 101. Outer layer; 102. Inner layer; 103. Interlayer; 104. Chamber; 2. Cabinet lid; 3. Screws; 4. T-slot; 5. Divider plate; 6. Sealing strip; 7. Vegetable preservation compartment; 8. Sealing compartment; 9. Air conditioner outdoor unit; 10. T-pipe; 11. First refrigerant delivery pipe; 12. Second refrigerant delivery pipe; 13. Solenoid valve; 14. Vegetable compartment air conditioner indoor unit; 15. Seafood compartment air conditioner indoor unit; 16. Vegetable compartment controlled atmosphere box; 1601. First box body; 1602. First air intake filter; 1603. First... Exhaust fan; 1604, Molecular sieve layer; 1605, Ethylene adsorption layer; 17, Seafood compartment modified atmosphere box; 1701, Second box body; 1702, Second air intake filter; 1703, Second exhaust fan; 1704, Activated carbon layer; 1705, Bio-enzyme layer; 18, Temperature and humidity sensor; 19, Ethylene concentration sensor; 20, Oxygen concentration sensor; 21, Ammonia concentration sensor; 22, Vegetable compartment door; 23, Seafood compartment door; 24, Display; 25, Electrical control cabinet; 26, Magnetic strip; 27, Oxygen cylinder; 28, Oxygen replenishment valve. Detailed Implementation

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please see Figure 1 and Figure 6 In this embodiment of the invention, a fresh-keeping transportation device includes a box body 1, a box cover 2, and a partition plate 5. The top of the box body 1 is sealed with the box cover 2 by screws 3. Both the box body 1 and the box cover 2 include an outer layer 101, an inner layer 102, and a sandwich layer 103. A sandwich layer 103 is provided between the outer layer 101 and the inner layer 102. A cavity 104 is provided between the sandwich layer 103 and the outer layer 101. The sandwich layer 103 is a vacuum insulation board, which plays a role in heat insulation, preventing vegetables and seafood from rotting due to high external environmental temperatures. It can also reduce the burden on air conditioning in hot weather, thus playing a role in energy saving. The cavity 104 acts as a heat insulation layer, which has a cold-keeping function. The inner layer 102 and the outer layer 101 form a double-layer protective structure, making the box body structure stronger and more impact-resistant.

[0028] Please see Figure 1The two sides of the box 1 are equally spaced T-shaped grooves 4. A partition plate 5 is installed inside the box 1, with both ends of the partition plate 5 inserted into the T-shaped grooves 4 from top to bottom. A sealing strip 6 is installed between the two ends of the partition plate 5 and the T-shaped grooves 4, forming a seal between the partition plate 5 and the box 1, reducing the possibility of odor mixing between the vegetable preservation compartment 7 and the seafood preservation compartment 8. The partition plate 5 divides the inside of the box 1 into left and right parts, which are the vegetable preservation compartment 7 and the seafood preservation compartment 8, respectively. An air conditioner outdoor unit 9 is installed on the outer wall of the box 1, and a three-way pipe 10 is installed on the refrigerant charging port of the air conditioner outdoor unit 9. The other two ports of the pipe 10 are connected to the first refrigerant delivery pipe 11 and the second refrigerant delivery pipe 12, respectively. The other end of the first refrigerant delivery pipe 11 is connected to the indoor air conditioning unit 14 of the vegetable compartment 7 installed on the inner wall of the vegetable preservation compartment 7, and the other end of the second refrigerant delivery pipe 12 is connected to the indoor air conditioning unit 15 of the seafood compartment 8 installed on the inner wall of the seafood preservation compartment 8. Solenoid valves 13 are installed on the first refrigerant delivery pipe 11 and the second refrigerant delivery pipe 12, respectively. The core function of the solenoid valve 13 is to dynamically adjust the refrigerant flow according to the real-time temperature requirements of the two compartments to ensure that both the seafood compartment and the vegetable compartment maintain the best preservation temperature.

[0029] Please see Figure 3-5 The vegetable preservation compartment 7 is equipped with a vegetable compartment modified atmosphere box 16 on the top, and the seafood preservation compartment 8 is equipped with a seafood compartment modified atmosphere box 17 on the top. The vegetable compartment modified atmosphere box 16 includes a first box body 1601, a first air inlet filter 1602, a first exhaust fan 1603, a molecular sieve layer 1604 and an ethylene adsorption layer 1605. The first air inlet filter 1602 and the first exhaust fan 1603 are respectively installed on the two ends of the first box body 1601. The molecular sieve layer 1604 and the ethylene adsorption layer 1605 are installed sequentially from front to back along the airflow direction inside the first box body 1601. The modified atmosphere box 17 for seafood compartments includes a second box body 1701, a second air inlet filter 1702, a second exhaust fan 1703, an activated carbon layer 1704, and a biological enzyme layer 1705. The second air inlet filter 1702 and the second exhaust fan 1703 are respectively installed at both ends of the second box body 1701. The activated carbon layer 1704 and the biological enzyme layer 1705 are installed sequentially from front to back along the airflow direction inside the second box body 1701. The molecular sieve layer 1604, ethylene adsorption layer 1605, activated carbon layer 1704, and bioenzyme layer 1705 all adopt a pull-out installation method, that is, they are composed of a pull-out outer frame and detachable functional layers set inside the pull-out outer frame. When it is necessary to clean and replace the functional layers, simply pull out the pull-out outer frame from the corresponding box, and then the functional layers can be cleaned and replaced. Magnetic strips 26 are embedded around the pull-out opening on the first box 1601 and the second box 1701. The magnetic strips 26 can fix each layer to the box by magnetic attraction after it is inserted into the box, preventing each layer from sliding out of the box and improving the reliability of use. Please see Figure 1-2 Temperature and humidity sensors 18 are installed in both vegetable preservation compartment 7 and seafood preservation compartment 8. Ethylene concentration sensor 19 and oxygen concentration sensor 20 are installed in vegetable preservation compartment 7, and ammonia concentration sensor 21 is installed in seafood preservation compartment 8. Vegetable compartment 7 is equipped with a vegetable compartment door 22 at one end, and seafood compartment 8 is equipped with a seafood compartment door 23 at one end. Both vegetable compartment door 22 and seafood compartment door 23 are equipped with monitors 24. The seafood compartment door 23 is also equipped with an electrical control cabinet 25. An oxygen tank 27 is installed on the cover 2. The outlet of the oxygen tank 27 is connected to the vegetable compartment 7 through a pipeline, and an oxygen replenishment valve 28 is installed on the pipeline.

[0030] The working principle of this invention is: Before use, open the lid 2 and insert the divider 5 into the corresponding T-slot 4 from top to bottom. Divide the vegetable preservation compartment 7 and seafood preservation compartment 8 in the box 1 according to a certain ratio. After the division is completed, install the lid 2 in place with screws 3. During operation, the refrigerant is compressed by the compressor inside the outdoor unit 9 of the air conditioner and then enters the condenser for heat dissipation. After being throttled and depressurized through a capillary tube, it is divided into two paths and enters the indoor unit 14 (evaporator) of the vegetable compartment and the indoor unit 15 (evaporator) of the seafood compartment. Both refrigerant delivery pipes are equipped with solenoid valves 13. The main control module inside the electrical control cabinet 25 dynamically adjusts the opening degree according to the real-time temperature feedback from the dual-compartment temperature and humidity sensors 18. For example, when the temperature T1 in the seafood compartment is greater than 4.5℃, the solenoid valve 13 in the seafood compartment is fully open (100%), while the solenoid valve 13 in the vegetable compartment is only opened to 30%, prioritizing the cooling of the seafood compartment. If T1 is less than 3.5℃, the solenoid valve 13 in the seafood compartment is reduced to 20%, while the solenoid valve 13 in the vegetable compartment is increased to 70%, avoiding the waste of energy by overcooling the seafood. The vegetable compartment modified atmosphere box 16 has a built-in molecular sieve layer 1604 and an ethylene adsorption layer 1605. When the O2 concentration in the compartment is high, the molecular sieve layer 1604 adsorbs excess O2. If the O2 concentration in the compartment is low, the oxygen supply valve 28 automatically opens to supply oxygen. When the ethylene concentration exceeds the standard, the potassium permanganate in the ethylene adsorption layer 1605 decomposes it into CO2 and water through an oxidation reaction, maintaining a high humidity environment and inhibiting the respiration of vegetables. The seafood compartment modified atmosphere box 17 integrates a biological enzyme layer 1705 (immobilized lysozyme decomposes NH3) and an activated carbon layer 1704 (adsorbs odors such as H2S / TMA). The NH3 produced by seafood metabolism is catalyzed and decomposed into N2 and H2O by the biological enzyme layer 1705. The activated carbon layer 1704 simultaneously adsorbs odor substances. The low temperature and low ammonia environment synergistically inhibit the reproduction of microorganisms and delay the deterioration of meat quality.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fresh-keeping transport device, comprising a box body (1), a box cover (2), and a partition plate (5), characterized in that: The top of the box (1) is sealed with a box cover (2) by screws (3). T-slots (4) are equally spaced on both sides of the box (1). A partition plate (5) is installed inside the box (1). The two ends of the partition plate (5) are inserted into the T-slots (4) from top to bottom. The partition plate (5) divides the inside of the box (1) into two parts, namely a vegetable preservation compartment (7) and a seafood preservation compartment (8). An air conditioner outdoor unit (9) is installed on the outer wall of the box (1). A three-way pipe (10) is installed on the refrigerant charging port of the air conditioner outdoor unit (9). The other two ends of the three-way pipe (10) are connected to the first refrigerant delivery pipe (11) and the second refrigerant delivery pipe (12), respectively. The other end of a refrigerant delivery pipe (11) is connected to the indoor air conditioning unit (14) of the vegetable compartment installed on the inner wall of the vegetable preservation compartment (7). The other end of a second refrigerant delivery pipe (12) is connected to the indoor air conditioning unit (15) of the seafood compartment installed on the inner wall of the seafood preservation compartment (8). A vegetable compartment modified atmosphere box (16) is installed on the top of the vegetable preservation compartment (7), and a seafood compartment modified atmosphere box (17) is installed on the top of the seafood preservation compartment (8). Temperature and humidity sensors (18) are installed in both the vegetable preservation compartment (7) and the seafood preservation compartment (8). An ethylene concentration sensor (19) and an oxygen concentration sensor (20) are installed in the vegetable preservation compartment (7), and an ammonia concentration sensor (21) is installed in the seafood preservation compartment (8).

2. The fresh-keeping and transporting device according to claim 1, characterized in that: The vegetable preservation compartment (7) is equipped with a vegetable compartment door (22) at one end, and the seafood preservation compartment (8) is equipped with a seafood compartment door (23) at one end.

3. The fresh-keeping and transporting device according to claim 2, characterized in that: Both the vegetable compartment door (22) and the seafood compartment door (23) are equipped with displays (24), and the seafood compartment door (23) is also equipped with an electrical control cabinet (25).

4. The fresh-keeping and transporting device according to claim 1, characterized in that: A sealing strip (6) is provided between the two ends of the partition plate (5) and the T-slot (4).

5. A fresh-keeping transportation device according to claim 1, characterized in that: The box body (1) and the box cover (2) both include an outer layer (101), an inner layer (102) and a sandwich layer (103). A sandwich layer (103) is provided between the outer layer (101) and the inner layer (102), and a cavity (104) is provided between the sandwich layer (103) and the outer layer (101).

6. The fresh-keeping and transporting device according to claim 1, characterized in that: The vegetable compartment modified atmosphere box (16) includes a first box body (1601), a first air inlet filter (1602), a first exhaust fan (1603), a molecular sieve layer (1604), and an ethylene adsorption layer (1605). The first air inlet filter (1602) and the first exhaust fan (1603) are respectively installed on the two ends of the first box body (1601). The molecular sieve layer (1604) and the ethylene adsorption layer (1605) are installed in the first box body (1601) from front to back along the airflow direction.

7. The fresh-keeping and transporting device according to claim 1, characterized in that: The modified atmosphere box (17) for seafood compartment includes a second box body (1701), a second air inlet filter (1702), a second exhaust fan (1703), an activated carbon layer (1704), and a biological enzyme layer (1705). The second air inlet filter (1702) and the second exhaust fan (1703) are respectively installed at both ends of the second box body (1701). The activated carbon layer (1704) and the biological enzyme layer (1705) are installed sequentially from front to back along the airflow direction inside the second box body (1701).

8. A fresh-keeping transport device according to any one of claims 6 or 7, characterized in that: The molecular sieve layer (1604), ethylene adsorption layer (1605), activated carbon layer (1704) and bioenzyme layer (1705) are all installed in a pull-out manner. Magnetic strips (26) are embedded around the pull-out opening on the first box (1601) and the second box (1701).

9. A fresh-keeping transportation device according to claim 1, characterized in that: Solenoid valves (13) are respectively installed on the first refrigerant delivery pipe (11) and the second refrigerant delivery pipe (12).

10. A fresh-keeping transportation device according to claim 1, characterized in that: An oxygen tank (27) is installed on the lid (2). The outlet of the oxygen tank (27) is connected to the vegetable preservation compartment (7) through a pipeline. An oxygen replenishment valve (28) is installed on the pipeline.

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