Refrigerating device for fresh food delivery

Abstract

The application relates to the field of refrigeration devices, and discloses a refrigeration device for fresh goods distribution, which comprises a box body and a top cover, the top end of the box body is provided with the top cover, a square hole is arranged on one side of the top cover, a partition plate is arranged in the box body, a storage battery is arranged on the side wall of the box body, a control panel is arranged on one side of the storage battery on the side wall of the box body, a PLC controller is arranged on one side of the control panel on the side wall of the box body, and side covers are symmetrically arranged outside the box body; the refrigeration device can quickly and uniformly transfer cold energy, the heat dissipation efficiency is enhanced, air supply can be carried out in multiple angles and directions, the problem of local uneven cooling and heating is avoided, the temperature uniformity in the box body is greatly improved, the refrigeration device can be quickly opened, the height is conveniently adjusted for placement, and the space utilization of the refrigeration device is improved.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and specifically to a refrigeration device for the distribution of fresh produce. Background Technology

[0002] Fresh produce (such as fruits, vegetables, meat, and aquatic products) is extremely sensitive to temperature during delivery. Cold chain logistics is a key link in ensuring its quality and safety. In recent years, with the improvement of residents' consumption level and the rapid development of the fresh food e-commerce market, the demand for fresh produce delivery has continued to grow, which has put forward higher requirements for cold chain equipment in the delivery process.

[0003] Currently, the refrigeration methods used in the delivery of fresh produce are relatively simple, mostly relying on passive insulation (such as ice pack cold storage) or traditional compressor refrigeration. This results in problems such as unstable temperature control and the need for frequent replacement of the cold source.

[0004] Existing refrigeration devices of this type are generally not conducive to the rapid and uniform transfer of cooling energy during use, which affects heat dissipation efficiency. They are not conducive to multi-angle and multi-directional air supply, and local uneven heating and cooling may occur, affecting the temperature uniformity inside the cabinet. They are also not conducive to the rapid opening of the refrigeration device, nor to the flexible adjustment of the height for placement, which affects the space utilization of the refrigeration device.

[0005] Based on the above, the present invention proposes a refrigeration device for fresh produce delivery. Summary of the Invention

[0006] To address the problems mentioned in the background above, the present invention provides a refrigeration device for fresh produce delivery.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0008] A refrigeration device for fresh produce delivery includes a box body and a top cover;

[0009] The top of the enclosure is fitted with a top cover, and a square hole is provided on one side of the top cover. A partition is installed inside the enclosure. A battery is installed on the side wall of the enclosure. A control panel is installed on the side wall of the enclosure near the battery. A PLC controller is installed on the side wall of the enclosure near the control panel. Side covers are symmetrically arranged on the outside of the enclosure. Two sets of first fans are installed on the outer wall of the enclosure. Heat sinks are installed on the inner wall of the enclosure. Semiconductor cooling chips are installed on the side walls of the heat sinks.

[0010] A liquid storage tray is installed on the side wall of the semiconductor cooling chip, a support plate is installed on the inner wall of the box, the support plate is connected to the liquid storage tray, and the partition plate divides the box into a first cavity and a second cavity.

[0011] Support columns are symmetrically installed on the inner walls of the first and second cavities. Temperature sensors are installed on the side walls of the first and second cavities. Side plates are installed on both sides and the bottom of the first and second cavities. The surface of the side plates is equipped with serpentine pipes, and the water outlet pipe of one set of serpentine pipes is connected to the water inlet pipe of another set of serpentine pipes. Three sets of hollow boxes are symmetrically installed at equal intervals on the top of the support plate. Two sets of second fans are installed on the top of each hollow box.

[0012] Furthermore, an electric pump is installed on the inner wall of the support plate. One end of the electric pump is connected to the inlet pipe of the serpentine pipe on one side, and the outlet pipe of the serpentine pipe on the other side is connected to the liquid storage pan. The other end of the electric pump is connected to the liquid storage pan.

[0013] The top of the support plate is symmetrically equipped with ventilation ducts, and one set of ventilation ducts extends into the interior of the first cavity, and another set of ventilation ducts extends into the interior of the second cavity.

[0014] Each hollow box has a first electric push rod movably mounted on its side wall. Each first electric push rod has a rotating shaft movably mounted on its output end. Each rotating shaft has a rocker arm fitted on its surface. Each rocker arm has a support shaft movably mounted on its side wall. Each support shaft has a support arm fitted on its surface. Each support arm has a rotating shaft movably mounted on both sides of its side wall. Each rotating shaft has a connecting arm fitted on its surface. Below the first electric push rod, three sets of equally spaced movable shafts are movably mounted on the surface of the hollow box. Each movable shaft has a baffle fitted on its surface. One set of movable shafts is connected to the rocker arm, and the other two sets of movable shafts are connected to the connecting arms.

[0015] Furthermore, connecting plates are symmetrically installed on the outer wall of the housing, and a second electric push rod is installed on the side wall of each connecting plate. A movable frame is installed on the output end of each second electric push rod.

[0016] Furthermore, racks are installed on the side walls of the movable frame, and sliding grooves are installed on the side walls of the partition plate near the second electric push rod, with the racks slidably connected to the sliding grooves.

[0017] Furthermore, symmetrical rotating columns are installed inside the box, all of which extend through the box to its exterior, and all rotating columns inside the box are connected to the side cover.

[0018] Furthermore, gears are fitted on the side walls of the rotating columns on the outside of the housing, and the gears mesh with racks. Sealing rings are installed on the inner walls of the side covers.

[0019] Furthermore, the surface of the support column is provided with multiple sets of through holes at equal intervals, and the outside of the support column is provided with multiple sets of tripods at equal intervals, with a first protrusion installed at the top of each tripod.

[0020] Furthermore, a second protrusion is installed on the side of the tripod top near the first protrusion, a connecting block is installed on the side wall of the tripod, and a support plate is provided on the outside of the tripod.

[0021] Furthermore, the output terminal of the control panel is electrically connected to the input terminal of the PLC controller via wires, and the output terminal of the PLC controller is electrically connected to the input terminals of the battery, the first fan, the semiconductor refrigeration chip, the temperature sensor, the second fan, the electric pump, the first electric actuator, and the second electric actuator via wires.

[0022] Compared with the prior art, the beneficial effects of this invention are as follows:

[0023] Technical Effect 1: The cabinet is divided into a first chamber and a second chamber by a partition plate. With the help of independent temperature sensors and serpentine pipes, different chambers can be cooled to meet the storage temperature requirements of various fresh products, improving the flexibility and applicability of delivery. The cooling is achieved by using a semiconductor cooling chip combined with a liquid storage tray, and the coolant is circulated in the serpentine pipe by an electric pump to achieve rapid and uniform cold transfer. At the same time, the hot end of the semiconductor cooling chip is forced to be cooled by heat sink and first fan, which significantly enhances the heat dissipation efficiency and ensures the continuous and stable operation of the cooling system. A second fan is set in the hollow box, and combined with a multi-link mechanism driven by the first electric push rod, the opening angle of the baffle can be flexibly adjusted to achieve multi-angle and multi-directional air supply. The air outlet angle can be easily adjusted. The cold air is delivered to the inside of the chamber through the ventilation duct and circulates, which effectively avoids the problem of uneven local heating and cooling and greatly improves the temperature uniformity inside the box.

[0024] Technical Effect 2: The second electric push rod drives the moving frame and rack to move horizontally. Utilizing the meshing transmission of the rack and gear, the rotation angle of the rotating column and side cover can be precisely controlled, enabling convenient opening and closing of the side cover. This linkage mechanism replaces manual door opening and closing operations, reducing labor intensity. It is especially suitable for scenarios requiring frequent loading and unloading of goods during delivery. The sealing ring installed on the inner wall of the side cover can fit tightly with the box body when the side cover is closed, effectively reducing cold air leakage and external hot air intrusion, thereby reducing the energy consumption of the refrigeration system and ensuring the stability of the internal temperature of the box. By setting multiple sets of equally spaced through holes on the support column, and in conjunction with the triangular frame structure with the first protrusion, the second protrusion, and the connecting block, users can freely choose to insert the triangular frame into different height combinations of through holes according to the actual volume of fresh goods, thereby flexibly adjusting the spacing of each layer of support plates. This design not only adapts to the loading needs of goods of different sizes but also maximizes the utilization rate of the vertical space inside the box. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front view structural diagram of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the first fan of the present invention;

[0028] Figure 4 This is a three-dimensional structural diagram of the support column of the present invention;

[0029] Figure 5 This is a three-dimensional structural diagram of the liquid storage tray of the present invention;

[0030] Figure 6 This is a three-dimensional structural diagram of the side plate of the present invention;

[0031] Figure 7 This is a three-dimensional structural diagram of the hollow box of the present invention;

[0032] Figure 8 This is a three-dimensional structural diagram of the connecting plate of the present invention;

[0033] Figure 9 This is a three-dimensional structural diagram of the side cover of the present invention;

[0034] Figure 10 This is a schematic diagram of the exploded structure of the tripod of the present invention.

[0035] The labels in the attached diagram are:

[0036] 1. Enclosure; 2. Top cover; 3. Square opening; 4. Divider plate; 5. Battery; 6. Control panel; 7. PLC controller; 8. Side cover; 9. First fan; 10. Heat sink; 11. Semiconductor cooling chip; 12. Liquid reservoir; 13. Support plate; 14. First cavity; 15. Second cavity; 16. Support column; 17. Temperature sensor; 18. Side plate; 19. Serpentine duct; 20. Hollow core; 21. Ventilation duct; 22. Support plate; 23. Second fan 24. Electric pump; 25. First electric push rod; 26. Rotating shaft; 27. Rocker arm; 28. Support shaft; 29. ​​Support arm; 30. Rotating shaft; 31. Connecting arm; 32. Movable shaft; 33. Baffle; 34. Connecting plate; 35. Second electric push rod; 36. Moving frame; 37. Rack; 38. Slide groove; 39. Rotating column; 40. Gear; 41. Sealing ring; 42. Through hole; 43. Triangular frame; 44. First protrusion; 45. Second protrusion; 46. Connecting block. Detailed Implementation

[0037] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0038] Reference Figures 1-10 A refrigeration device for fresh produce delivery includes a housing 1 and a top cover 2.

[0039] A top cover 2 is installed on the top of the box 1, and a square hole 3 is provided on one side of the top cover 2.

[0040] The interior of the housing 1 is equipped with a partition plate 4.

[0041] A battery 5 is installed on the side wall of the enclosure 1. A control panel 6 is installed on the side wall of the enclosure 1 near the battery 5. A PLC controller 7 is installed on the side wall of the enclosure 1 near the control panel 6.

[0042] The exterior of the housing 1 is symmetrically provided with side covers 8, and two sets of first fans 9 are installed on the outer wall of the housing 1.

[0043] A heat sink 10 is installed on the inner wall of the housing 1, a thermoelectric cooler 11 is installed on the side wall of the heat sink 10, and a liquid storage tray 12 is installed on the side wall of the thermoelectric cooler 11.

[0044] A support plate 13 is installed on the inner wall of the box 1. The support plate 13 is connected to the liquid storage tray 12. The partition plate 4 divides the box 1 into a first cavity 14 and a second cavity 15. Support columns 16 are symmetrically installed on the inner walls of the first cavity 14 and the second cavity 15.

[0045] Temperature sensors 17 are installed on the side walls of the first cavity 14 and the second cavity 15. Side plates 18 are installed on both sides and the bottom of the first cavity 14 and the second cavity 15. The surface of the side plates 18 is equipped with serpentine pipes 19, and the water outlet pipe of one set of serpentine pipes 19 is connected to the water inlet pipe of another set of serpentine pipes 19.

[0046] Three sets of hollow boxes 20 are symmetrically installed at equal intervals on the top of the support plate 13, and two sets of second fans 23 are installed on the top of each hollow box 20.

[0047] An electric pump 24 is installed on the inner wall of the support plate 13. One end of the electric pump 24 is connected to the water inlet pipe of the serpentine pipe 19 on one side, and the water outlet pipe of the serpentine pipe 19 on the other side is connected to the liquid storage pan 12. The other end of the electric pump 24 is connected to the liquid storage pan 12.

[0048] Ventilation ducts 21 are symmetrically installed on the top of the support plate 13, and one set of ventilation ducts 21 extends into the interior of the first cavity 14, while another set of ventilation ducts 21 extends into the interior of the second cavity 15.

[0049] Each side wall of the hollow box 20 is movably mounted with a first electric push rod 25. Each output end of the first electric push rod 25 is movably mounted with a rotating shaft 26. Each surface of the rotating shaft 26 is fitted with a rocker arm 27. Each side wall of the rocker arm 27 is movably mounted with a support shaft 28. Each surface of the support shaft 28 is fitted with a support arm 29. Each side of the support arm 29 is movably mounted with a rotating shaft 30. Each surface of the rotating shaft 30 is fitted with a connecting arm 31. Three sets of movable shafts 32 at equal intervals are movably mounted on the surface of the hollow box 20 below the first electric push rod 25. Each surface of the movable shaft 32 is fitted with a baffle 33. One set of movable shafts 32 is connected to the rocker arm 27, and the other two sets of movable shafts 32 are connected to the connecting arm 31.

[0050] When using a refrigeration unit for fresh produce delivery, the battery 5 supplies power to the electrical components. Fresh produce is placed sequentially on the surface of the support tray 22. The temperature sensor 17 monitors the temperature inside the first cavity 14 and the second cavity 15 and feeds it back to the control panel 6 through the processing module inside the PLC controller 7.

[0051] When cooling is required, the thermoelectric cooler 11 is turned on. One end of the thermoelectric cooler 11 cools the liquid storage pan 12 and the liquid inside the liquid storage pan 12, while the other end of the thermoelectric cooler 11 emits heat. The emitted heat is transferred to the surface of the heat sink 10. The control panel 6 simultaneously turns on two sets of first fans 9 through the internal synchronous control module of the PLC controller 7. The first fans 9 blow air to the heat sink 10 to dissipate heat, thereby dissipating heat from the thermoelectric cooler 11.

[0052] When the electric pump 24 is turned on, under the support of the support plate 13, the electric pump 24 pumps the liquid inside the liquid storage pan 12 into the inside of the serpentine pipe 19. The liquid flows through multiple sets of serpentine pipes 19 in sequence, and finally the liquid is transported back to the inside of the liquid storage pan 12 through the last set of serpentine pipes 19. This process is repeated to achieve cooling inside the first chamber 14 and the second chamber 15.

[0053] When air needs to be blown into the first cavity 14 and the second cavity 15, the corresponding sets of second fans 23 are turned on, and the first electric push rod 25 is turned on. With the support of the hollow box 20, the first electric push rod 25 drives the rotating shaft 26 to move. The rotating shaft 26 drives the rocker arm 27 to move. The rocker arm 27 drives the support arm 29 and the rotating shaft 30 to move through the support shaft 28. With the movable shaft 32 connected to the hollow box 20, the rocker arm 27 drives a set of movable shafts 32 and baffles 33 to rotate around the set of movable shafts 32. The two sets of rotating shafts 30 drive the other two sets of movable shafts 32 and baffles 33 to rotate around the other two sets of movable shafts 32 through the connecting arm 31, thereby adjusting the angle between the baffles 33 and the hollow box 20, and then blowing air. The blown air is delivered to the surface of the support plate 13 through the ventilation duct 21, that is, the space formed by the support plate 13 and the box 1, and the process is repeated in sequence, which facilitates the airflow inside the first cavity 14 and the second cavity 15.

[0054] Connecting plates 34 are symmetrically installed on the outer wall of the housing 1. A second electric push rod 35 is installed on the side wall of each connecting plate 34. A movable frame 36 is installed at the output end of each second electric push rod 35.

[0055] Racks 37 are installed on the side walls of the movable frame 36, and slide grooves 38 are installed on the side walls of the partition plate 4 near the second electric push rod 35. The racks 37 are slidably connected to the slide grooves 38.

[0056] The interior of the housing 1 is symmetrically and movably equipped with rotating columns 39, all of which extend through the housing 1 to the outside. The rotating columns 39 inside the housing 1 are all connected to the side cover 8.

[0057] Gears 40 are fitted on the side walls of the external rotating column 39 of the housing 1. The gears 40 mesh with the rack 37. Sealing rings 41 are installed on the inner walls of the side cover 8.

[0058] The surface of the support column 16 is provided with multiple sets of through holes 42 at equal intervals, and the outside of the support column 16 is provided with multiple sets of tripods 43 at equal intervals, and the top of each tripod 43 is equipped with a first protrusion 44.

[0059] A second protrusion 45 is installed on the side of the tripod 43 near the first protrusion 44 at the top. A connecting block 46 is installed on the side wall of the tripod 43. A support plate 22 is provided on the outside of the tripod 43.

[0060] The output terminal of the control panel 6 is electrically connected to the input terminal of the PLC controller 7 via wires. The output terminal of the PLC controller 7 is electrically connected to the input terminals of the battery 5, the first fan 9, the semiconductor cooling chip 11, the temperature sensor 17, the second fan 23, the electric pump 24, the first electric push rod 25, and the second electric push rod 35 via wires.

[0061] When it is necessary to adjust the spacing between the support plates 22, the second electric push rod 35 is opened. Under the support of the connecting plate 34, the second electric push rod 35 drives the moving frame 36 to move. The moving frame 36 drives the rack 37 to move. Under the sliding connection between the rack 37 and the slide groove 38, and the meshing between the rack 37 and the gear 40, the rack 37 drives the gear 40 to rotate. Under the movable connection between the rotating column 39 and the housing 1, the gear 40 drives the rotating column 39, the side cover 8, and the sealing ring 41 to rotate around the rotating column 39 as the axis, so that the side cover 8 and the housing 1 form a certain angle.

[0062] Take out the support plate 22 and the four sets of tripods 43. Place the tripods 43 into the corresponding through holes 42 in sequence, so that the first protrusion 44 is locked inside the first set of through holes 42 and the connecting block 46 is locked inside the next set of through holes 42. Place the support plate 22 on the surface of the tripods 43, that is, between the first protrusion 44 and the second protrusion 45, and then adjust the height of the support plate 22.

[0063] To enable the coordinated operation of the above functional modules, the PLC controller 7 can be a commercially available control device, such as the SIMATIC S7-1500. The PLC controller 7 is electrically connected to each electrical component via wires. Based on the signals fed back by various sensors, the PLC controller 7 drives the corresponding actuators to operate according to preset logic (such as threshold comparison and timing control). The hydraulic / air / power sources, pipelines / wires, and control valves / switches required for its operation are all commercially available conventional products. The specific implementation of the above control circuit is a conventional technical means in this field and will not be described in detail here.

[0064] Working principle of the invention:

[0065] When using a refrigeration unit for fresh produce delivery, one end of the semiconductor cooling chip 11 cools the liquid storage pan 12 and the liquid inside the pan, while the other end of the semiconductor cooling chip 11 emits heat. The emitted heat is transferred to the surface of the heat sink 10, and the first fan 9 dissipates heat from the heat sink 10. The electric pump 24 pumps the liquid inside the liquid storage pan 12 into the serpentine pipe 19, flowing through multiple sets of serpentine pipes 19, and finally, through the last set of serpentine pipes 19, the liquid is transported back to the liquid storage pan 12. This process is repeated to achieve cooling inside the first cavity 14 and the second cavity 15. The first electric push rod 25 drives the rotating shaft 26 to move, which in turn drives the rocker arm 27 to move. The rocker arm 27, through the support shaft 28, drives the support arm 29 and the rotating shaft 30 to move. The rocker arm 27 drives a set of movable shafts 32 and baffles 33 to rotate around the movable shaft 32. The two sets of rotating shafts 30, through the connecting arm 31, drive the other two sets of movable shafts 32 and baffles 33 to rotate around the other two sets of movable shafts 32, thereby adjusting... The angle between the baffle 33 and the hollow box 20 is adjusted to allow air to flow. The blown air is then transported through the ventilation duct 21 to the surface of the support plate 13, i.e., the space formed by the support plate 13 and the box 1, circulating sequentially. This facilitates the airflow inside the first cavity 14 and the second cavity 15, preventing uneven heating and cooling. The second electric push rod 35 drives the moving frame 36 to move, which in turn drives the rack 37 to move. The rack 37 then drives the gear 40 to rotate, which in turn drives the rotating column 39 and the side cover. 8. The sealing ring 41 rotates around the rotating column 39, so that the side cover 8 and the box 1 form a certain angle. The support plate 22 is taken out, and the four sets of tripods 43 are taken out and placed into the corresponding through holes 42 in sequence, so that the first protrusion 44 is locked in the inside of a set of through holes 42 and the connecting block 46 is locked in the inside of the next set of through holes 42. The support plate 22 is placed on the surface of the tripod 43, that is, between the first protrusion 44 and the second protrusion 45. Then the height of the support plate 22 is adjusted to complete the use of the refrigeration device.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A refrigeration device for fresh produce distribution, characterized in that: Includes the box body (1) and the top cover (2); The top of the housing (1) is fitted with a top cover (2), and a square hole (3) is provided on one side of the top cover (2). A partition plate (4) is installed inside the housing (1). A storage battery (5) is installed on the side wall of the housing (1). A control panel (6) is installed on the side wall of the housing (1) near the storage battery (5). A PLC controller (7) is installed on the side wall of the housing (1) near the control panel (6). Side covers (8) are symmetrically arranged on the outside of the housing (1). Two sets of first fans (9) are installed on the outer wall of the housing (1). A heat sink (10) is installed on the inner wall of the housing (1). A semiconductor cooling chip (11) is installed on the side wall of the heat sink (10). A liquid storage tray (12) is installed on the side wall of the semiconductor cooling chip (11), and a support plate (13) is installed on the inner wall of the box (1). The support plate (13) is connected to the liquid storage tray (12), and the partition plate (4) divides the box (1) into a first cavity (14) and a second cavity (15). Support columns (16) are symmetrically installed on the inner walls of the first cavity (14) and the second cavity (15). Temperature sensors (17) are installed on the side walls of the first cavity (14) and the second cavity (15). Side plates (18) are installed on both sides and the bottom of the first cavity (14) and the second cavity (15). The surface of the side plates (18) is equipped with serpentine pipes (19). The water outlet pipe of one set of serpentine pipes (19) is connected to the water inlet pipe of another set of serpentine pipes (19). Three sets of hollow boxes (20) with equal spacing are symmetrically installed on the top of the support plate (13). Two sets of second fans (23) are installed on the top of each hollow box (20).

2. The refrigeration device for fresh produce distribution according to claim 1, characterized in that: An electric pump (24) is installed on the inner wall of the support plate (13). One end of the electric pump (24) is connected to the water inlet pipe of a serpentine pipe (19) on one side, and the water outlet pipe of the serpentine pipe (19) on the other side is connected to the liquid storage pan (12). The other end of the electric pump (24) is connected to the liquid storage pan (12). Ventilation ducts (21) are symmetrically installed on the top of the support plate (13), and one set of ventilation ducts (21) extends into the interior of the first cavity (14), and another set of ventilation ducts (21) extends into the interior of the second cavity (15); The hollow box (20) is movably mounted with a first electric push rod (25) on its side wall. The output end of the first electric push rod (25) is movably mounted with a rotating shaft (26). The surface of the rotating shaft (26) is fitted with a rocker arm (27). The side wall of the rocker arm (27) is movably mounted with a support shaft (28). The surface of the support shaft (28) is fitted with a support arm (29). The two sides of the support arm (29) are movably mounted with rotating shafts (30). The surface of the rotating shaft (30) is fitted with a connecting arm (31). The surface of the hollow box (20) below the first electric push rod (25) is movably mounted with three sets of equally spaced movable shafts (32). The surface of the movable shafts (32) is fitted with a baffle (33). One set of movable shafts (32) is connected to the rocker arm (27), and the other two sets of movable shafts (32) are connected to the connecting arm (31).

3. A refrigeration device for fresh produce distribution according to claim 1, characterized in that: Connecting plates (34) are symmetrically installed on the outer wall of the box (1). A second electric push rod (35) is installed on the side wall of each connecting plate (34). A movable frame (36) is installed at the output end of each second electric push rod (35).

4. A refrigeration device for fresh produce distribution according to claim 3, characterized in that: The side walls of the movable frame (36) are all equipped with racks (37), and the side walls of the partition plate (4) near the second electric push rod (35) are all equipped with slide grooves (38), and the racks (37) are all slidably connected to the slide grooves (38).

5. A refrigeration device for fresh produce distribution according to claim 4, characterized in that: The box (1) is symmetrically and movably installed with rotating columns (39). All rotating columns (39) extend through the box (1) to its outside. All rotating columns (39) inside the box (1) are connected to the side cover (8).

6. A refrigeration device for fresh produce distribution according to claim 5, characterized in that: Gears (40) are fitted on the side walls of the external rotating column (39) of the housing (1), and the gears (40) mesh with the rack (37). Sealing rings (41) are installed on the inner walls of the side cover (8).

7. A refrigeration device for fresh produce distribution according to claim 6, characterized in that: The surface of the support column (16) is provided with multiple sets of through holes (42) at equal intervals, and the outside of the support column (16) is provided with multiple sets of tripods (43) at equal intervals, and the top of each tripod (43) is equipped with a first protrusion (44).

8. A refrigeration device for fresh produce distribution according to claim 7, characterized in that: The top of the tripod (43) is equipped with a second protrusion (45) on the side near the first protrusion (44), and a connecting block (46) is installed on the side wall of the tripod (43). A support plate (22) is provided on the outside of the tripod (43).

9. A refrigeration device for fresh produce distribution according to claim 8, characterized in that: The output terminal of the control panel (6) is electrically connected to the input terminal of the PLC controller (7) via wires. The output terminal of the PLC controller (7) is electrically connected to the input terminals of the battery (5), the first fan (9), the semiconductor refrigeration chip (11), the temperature sensor (17), the second fan (23), the electric pump (24), the first electric push rod (25), and the second electric push rod (35) via wires.

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