Food cold chain transportation device

Abstract

The invention discloses a food cold chain transportation device, and relates to the technical field of food cold chain transportation, the food cold chain transportation device comprises a loading carriage, the top of the loading carriage is fixedly provided with a refrigeration device, the top of an inner cavity of the loading carriage is provided with an air outlet, the loading carriage is internally provided with a spacing assembly, and the spacing assembly comprises first sliding grooves symmetrically formed in the loading carriage; the number of the first sliding grooves is not less than two, and the interior of each first sliding groove is slidably connected with a first connecting rod. Through mutual cooperation of the spacing assembly and the suction assembly, the vertical space in the loading carriage can be fully utilized, the storage amount of food is increased, and meanwhile the situation that the food is stacked together is avoided; therefore, the situation that food cannot be fully frozen due to the fact that the food is stacked together is avoided, cold air is directly blown to the surface of the food through the air outlet pipeline, the food placed on the connecting plate makes full contact with the cold air, and therefore the freshness and quality of the food are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of food cold chain transportation, and in particular to a food cold chain transportation device. Background Art

[0002] A food cold chain transportation device is a combination of equipment and systems used to ensure that food is kept in a specified low-temperature environment without spoiling during the process from production to consumption. It is usually a specially designed refrigerated truck or freezer truck equipped with a refrigeration system consisting of a compressor, condenser, evaporator and other components to ensure that food can always remain at a low temperature during transportation.

[0003] The existing food cold chain transportation equipment lacks the utilization of the vertical space inside the loading compartment, which causes all the food to be stacked together. The stacked food prevents the food in the middle from being fully and quickly exposed to the cold air, making it impossible to effectively freeze the food. At the same time, the refrigeration system in the compartment cannot fully blow the cold air to the surface of the food, and cannot ensure the freshness and quality of the food. At the same time, during the loading and unloading process, the cold air in the compartment is in contact with the outside world, so that the moisture from the outside enters the compartment, causing frost in the compartment. At the same time, the cold air in the compartment escapes, thereby increasing the workload of the refrigeration equipment.

[0004] Therefore, a food cold chain transportation device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a food cold chain transportation device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a food cold chain transportation device, comprising a loading compartment, a refrigeration device is fixedly installed on the top of the loading compartment, an air outlet is opened on the top of the inner cavity of the loading compartment, a spacing component is arranged inside the loading compartment, the spacing component comprises a sliding groove symmetrically opened inside the loading compartment, at least two of the sliding grooves are arranged, each of the sliding grooves is slidably connected with a connecting rod 1, a loading hollow frame is rotatably connected between the two connecting rods 1, at least three connecting plates are fixedly connected to the loading hollow frame, a suction component is arranged on the loading hollow frame, the suction component comprises a suction pipe symmetrically fixedly connected to the side wall of the loading hollow frame, the three connecting plates are hollow stainless steel plates, the inner cavities of the three connecting plates are fixedly connected with water storage bins, a plurality of air outlet pipes are displayed and fixedly installed on the connecting plates, and a plurality of circular holes are arranged in an array on the connecting plates.

[0007] Furthermore, a sealed component is provided inside the loading compartment, and the sealed component includes two connecting rods symmetrically rotatably connected to the side wall of the loading hollow frame, and no less than two of the two connecting rods are provided. Each of the two connecting rods is rotatably connected to an insulation layer at one end away from the loading hollow frame, and the insulation layer is fixedly connected to a rubber scraper on one side close to the loading hollow frame.

[0008] Furthermore, a recovery component is provided inside the loading compartment, and the recovery component includes a touch switch fixedly installed inside each sliding groove one, a sliding groove two is provided on the loading compartment, a groove is provided on the loading compartment, a sliding plate is slidably connected inside the sliding groove two, a recovery box is fixedly connected to the bottom of the sliding plate, an electric telescopic rod is symmetrically fixedly connected inside the sliding groove two, and at least two of the electric telescopic rods are provided.

[0009] Furthermore, the side walls of the hollow loading frame are equidistantly rotatably connected to no less than three gears, the side wall of the gear located at the top is fixedly connected to a guide wheel, a wire rope is wound around the guide wheel, a synchronous wheel is fixedly connected to the side of the guide wheel away from the gear, the two gears located at the bottom are fixedly connected to two synchronous wheels, a synchronous chain is transmission-connected between the three synchronous wheels, the side walls of the three connecting plates are slidably connected to toothed plates, two door bodies are rotatably connected to the loading compartment, and terminal posts are threadedly connected to the two switch doors.

[0010] Furthermore, the water storage tank is penetrated and fixedly connected to the outer side of the air outlet pipe, and a suction pump is installed in the inner cavity of the suction pipe.

[0011] Furthermore, the suction pipe is interconnected with the loading hollow frame, the loading hollow frame is interconnected with the inner cavity of the connecting plate, and the air outlet pipe is cross-arranged with the circular hole.

[0012] Furthermore, the insulation layer is made of extruded polystyrene foam board, the size of the rubber scraper is matched with the insulation layer, and the insulation layer is matched with the inner cavity of the loading compartment.

[0013] Furthermore, the recycling box is slidably adapted to the groove, and the two sides of the sliding plate are respectively fixedly connected to the extended ends of the two electric telescopic rods.

[0014] Furthermore, the top of the sliding plate is arranged as a slope, and the sliding plate is communicated with the recovery box.

[0015] Furthermore, the gear is meshed with the toothed plate, the three synchronous wheels are meshed with the synchronous chain, and the terminal is fixedly connected to one end of the wire rope away from the guide wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The arrangement of the spacing component and the suction component in cooperation with each other can make full use of the vertical space inside the loading compartment, increase the storage capacity of food, and avoid the situation that food is stacked together, thereby avoiding the situation that the food in the middle cannot be fully frozen due to the stacking of food. At the same time, the air outlet pipe is used to blow cold air directly to the surface of the food, so that the food placed on the connecting plate is fully exposed to the cold air, thereby ensuring the freshness and quality of the food; The setting of the air outlet pipe extending out plays a role in separating the food. In the process of transporting smaller food, it is avoided that the food is more likely to shake due to being too small and thus collide with each other. At the same time, the setting of multiple round holes can collect excess water droplets on the surface of the food into the water storage bin, thus avoiding the problems of food soaking, softening, deterioration, etc. that may be caused by water droplets staying on the surface of the food for a long time. At the same time, it reduces the situation that the water droplets are affected by the cold air and turn into ice cubes, thereby avoiding the situation that the ice cubes stick to the food on the connecting plate. The setting of the insulation layer allows cold air to escape from the inner cavity of the loading compartment during the process of loading and unloading food, thereby reducing the temperature fluctuation in the inner cavity of the loading compartment and reducing the workload of the refrigeration device. At the same time, it isolates external moisture from entering the interior of the loading compartment, thereby avoiding the occurrence of frost caused by moisture entering the interior of the loading compartment; The setting of the rubber scraper and the recovery component can scrape and collect the frost attached to the loading compartment and the air outlet, thereby maintaining the cleanliness of the inner cavity of the loading compartment and preventing the frost from blocking the air outlet so that the cold air cannot enter the loading compartment. At the same time, the scraped frost is collected in the recovery box to prevent the frost from falling to the ground and causing moisture on the ground, thereby reducing the number of work steps for the staff to clean the frost. The anti-drop component can prevent food from falling when unloading food, thereby preventing food from falling to the ground and causing contamination, thereby reducing food loss and waste, and preventing dropped food from colliding with unloading personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the loading compartment structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the sliding groove 1, the connecting rod and the loading hollow frame structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the structure of the hollow loading frame and the connecting plate of the present invention; Figure 5 It is a cross-sectional schematic diagram of the connecting plate, the air outlet pipe and the circular hole structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a bottom view schematic diagram of the air outlet and suction pipe structure of the present invention; Figure 8 It is an exploded schematic diagram of the heat-insulating layer and the rubber scraper structure of the present invention; Fig. 9 It is a three-dimensional schematic diagram of the sliding slot 1, the connecting rod and the touch switch structure of the present invention; Fig.10 It is a three-dimensional schematic diagram of the loading compartment and the sliding groove structure of the present invention; Fig.11 It is a three-dimensional schematic diagram of the structure of the sliding plate, the recycling box and the electric telescopic rod of the present invention; Fig.12 It is a three-dimensional schematic diagram of the sliding plate and the recycling box structure of the present invention; Fig.13 It is a three-dimensional schematic diagram of the structure of the anti-drop assembly of the present invention; Fig.14 For the present invention Fig.13 A magnified schematic diagram of the structure at B in the middle; Fig.15 It is a three-dimensional schematic diagram of the steel wire rope, synchronous wheel and synchronous chain structure of the present invention.

[0018] In the figure: 1. Loading compartment; 2. Refrigeration device; 3. Air outlet; The spacing component includes: 4, a sliding groove; 5, a connecting rod; 6, a loading hollow frame; 7, a connecting plate; The suction assembly includes: 8, suction pipe; 9, water storage tank; 10, air outlet pipe; 11, round hole; The sealed components include: 12, connecting rod 2; 13, insulation layer; 14, rubber scraper; The recycling components include: 15, touch switch; 16, sliding slot 2; 17, groove; 18, sliding plate; 19, recycling box; 20, electric telescopic rod; The anti-drop assembly includes: 21, gear; 22, guide wheel; 23, wire rope; 24, synchronous wheel; 25, synchronous chain; 26, tooth plate; 27, terminal. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 15 , is an embodiment provided by the present invention: a food cold chain transportation device, comprising a loading compartment 1, a refrigeration device 2 is fixedly installed on the top of the loading compartment 1, an air outlet 3 is opened on the top of the inner cavity of the loading compartment 1, a spacing component is arranged inside the loading compartment 1, the spacing component comprises a sliding groove 4 symmetrically opened inside the loading compartment 1, at least two sliding grooves 4 are arranged, each sliding groove 4 is slidably connected with a connecting rod 5, a loading hollow frame 6 is rotatably connected between the two connecting rods 5, at least three connecting plates 7 are fixedly connected to the loading hollow frame 6, a suction component is arranged on the loading hollow frame 6, the suction component comprises a suction pipe 8 symmetrically fixedly connected to the side wall of the loading hollow frame 6, and the air outlet 3 is located in the movement path of the suction pipe 8 A suction pump is installed in the inner cavity of the suction pipe 8, the inner cavities of the loading hollow frame 6 and the connecting plate 7 are interconnected, the connecting plate 7 is a hollow stainless steel plate, and the inner cavities of the three connecting plates 7 are fixedly connected to water storage bins 9. A plurality of air outlet pipes 10 are equidistantly arranged and fixedly installed on the connecting plate 7, and the plurality of air outlet pipes 10 pass through the connecting plate 7, and the outer side of each air outlet pipe 10 is wrapped with a sponge, and each air outlet pipe 10 is provided with an air outlet hole, and the air outlet hole is located on the air outlet pipe 10 on the outer part of the connecting plate 7, the other end of the air outlet pipe 10 is fixedly connected to the water storage bin 9, and the water storage bin 9 penetrates the air outlet pipe 10, and a plurality of circular holes 11 are arranged in an array on the connecting plate 7, and the circular holes 11 are staggered with the air outlet pipe 10, and the air outlet pipe 10 and the circular holes 11 are cross-arranged.

[0021] A sealed component is arranged inside the loading compartment 1, and the sealed component includes two connecting rods 12 which are symmetrically rotatably connected to the side wall of the loading hollow frame 6. There are no less than two connecting rods 12, and the two connecting rods 12 are located on the side of the loading hollow frame 6 close to the suction pipe 8. One end of each connecting rod 12 away from the loading hollow frame 6 is rotatably connected to an insulation layer 13, and a side of the insulation layer 13 close to the loading hollow frame 6 is fixedly connected to a rubber scraper 14. The insulation layer 13 is made of extruded polystyrene foam board, and the extruded polystyrene foam board has thermal insulation performance, high strength, and moisture-proof performance. The size of the rubber scraper 14 is matched with the insulation layer 13, and the insulation layer 13 is matched with the size of the inner cavity of the loading compartment 1.

[0022] A recycling component is provided inside the loading compartment 1, and the recycling component includes a touch switch 15 fixedly installed inside each sliding groove 14. A sliding groove 2 16 is provided on the loading compartment 1, and the sliding groove 2 16 is located at the bottom of the loading compartment 1. A groove 17 is provided on the loading compartment 1, and the groove 17 is located between the bottom of the loading compartment 1, and the groove 17 is communicated with the sliding groove 2 16. A sliding plate 18 is slidably connected inside the sliding groove 2 16, and a recycling box 19 is fixedly connected to the bottom of the sliding plate 18. The top of the sliding plate 18 is set as an inwardly inclined slope, and the upper surface of the sliding plate 18 is concave. The opening of the recycling box 19 is flush with the upper surface of the sliding plate 18, and the recycling box 19 is slidably adapted in the groove 17. An electric telescopic rod 20 is symmetrically fixedly connected inside the sliding groove 2 16, and the two sides of the recycling box 19 extend out of the sliding plate 18, and the two sides are respectively fixedly connected to the protruding ends of the two electric telescopic rods 20, and no less than two electric telescopic rods 20 are provided.

[0023] The side walls of the loading hollow frame 6 are equidistantly connected to no less than three gears 21 for rotation. The side wall of the gear 21 located at the top is fixedly connected to a guide wheel 22, and a wire rope 23 is wound around the guide wheel 22. The three gears 21 are fixedly connected to a synchronous wheel 24, and the guide wheel 22 is located between the top gear 21 and the synchronous wheel 24. A synchronous chain 25 is transmission-connected between the three synchronous wheels 24, and the three synchronous wheels 24 are meshed with the synchronous chain 25. The side walls of the loading hollow frame 6 are symmetrically fixedly installed with limit blocks, and the synchronous chain 25 is slidably adapted inside the limit blocks. The setting of the limit blocks can prevent the synchronous chain 25 from falling off during rotation. The side walls of the three connecting plates 7 are slidably connected to tooth plates 26, and the gears 21 and the tooth plates 26 are meshed with each other. There are two door bodies rotatably connected to the loading compartment 1, and the two door bodies are threaded with terminal posts 27, which are fixedly connected to one end of the wire rope 23 away from the guide wheel 22.

[0024] The above implementation works as follows: The initialization steps are as follows: After the refrigeration device 2 is powered on, the cold air is blown into the inner cavity of the loading compartment 1 through the air outlet 3 , and at this time, the two suction pipes 8 and the air outlet 3 are in contact with each other.

[0025] The working steps are as follows: The preparations are as follows: The staff uses a tractor to pull the loading hollow frame 6 out of the inner cavity of the loading compartment 1, and the loading hollow frame 6 slides on the loading compartment 1 through the connecting rod 5. After the loading hollow frame 6 is completely placed outside the loading compartment 1, the staff begins to place the food to be transported. If the volume of the food is too large, the staff will directly place the food on the connecting plate 7. Because there are three connecting plates 7, it is avoided that all the food is piled up together. If the volume of the food is too small, the staff will place the food between the two air outlet pipes 10.

[0026] The working steps of the spacer assembly and the suction assembly are as follows: When the loading hollow frame 6 is towed into the inner cavity of the loading compartment 1 again by the staff driving the tractor, as described in the initialization step, at this time, after the loading hollow frame 6 is completely placed in the inner cavity of the loading compartment 1, the two suction pipes 8 and the air outlet 3 fit each other, and after the suction pump in the inner cavity of the suction pipe 8 is energized, a part of the cold air blown into the loading compartment 1 by the refrigeration device 2 is sucked into the inner cavity of the suction pipe 8, and the cold air enters the interior of the loading hollow frame 6 and is emitted to the inner cavity of the connecting plate 7. Since the gas is fluid, the cold air is continuously blown directly from the air outlet of the air outlet pipe 10 to the food placed on the connecting plate 7. At the same time, the food has just entered the low temperature environment of the loading compartment 1 from the hot environment outside the loading compartment 1. Condensation water will be generated on the surface of the food. At the same time, the food will also be mixed with water droplets due to washing and not drying. When the food is mixed with too many water droplets, a large amount of water droplets will drip into the circular holes 11 opened in the array under their own gravity and enter the water storage bin 9.

[0027] By cooperating with each other in the spacing component and the suction component, the vertical space inside the loading compartment 1 can be fully utilized to increase the storage capacity of food, while avoiding the occurrence of food stacking, thereby avoiding the situation where the food in the middle cannot be fully frozen due to the stacking of food. At the same time, the air outlet pipe 10 is used to blow cold air directly onto the surface of the food, so that the food placed on the connecting plate 7 is fully exposed to the cold air, thereby ensuring the freshness and quality of the food.

[0028] The setting of the air outlet pipe 10 extending out can play the role of spacing foods. In the process of transporting smaller foods, it can avoid the collision of foods due to the small size of the foods causing them to shake more easily. At the same time, the setting of multiple circular holes 11 can collect excessive water droplets on the surface of the foods into the water storage bin 9, avoiding the problems of food soaking, softening, and deterioration caused by water droplets staying on the food surface for a long time. At the same time, it reduces the situation where water droplets turn into ice cubes due to the influence of cold air, thereby avoiding the situation where ice cubes stick to the connecting plate 7, and the connection plate 7 is pulled out of the loading compartment 1 for loading and unloading of goods, which increases the space for stacking operations, and does not require manual stacking in the loading compartment 1 in the cold air.

[0029] The working steps of the closed assembly are as follows: When the food is transported to the destination, the staff uses a tractor to pull the loading hollow frame 6 out of the inner cavity of the loading compartment 1. The loading hollow frame 6 slides on the loading compartment 1 through the connecting rod 1 5. The loading hollow frame 6 drives the connecting rod 2 12 to move synchronously. The connecting rod 2 12 pulls the insulation layer 13 into the loading compartment 1 toward the door body. At this time, the rubber scraper 14 begins to scrape off the frost attached to the inner cavity surface of the loading compartment 1 and the air outlet 3. When the connecting rod 1 5 slides on the sliding groove 1 4 and hits the touch switch 15, the touch switch 15 is triggered. The touch switch 15 energizes the electric telescopic rod 20, which pushes the sliding plate 18 out of the sliding groove 16. The sliding plate 18 drives the recovery box 19 to move synchronously in the groove 17, so that the rubber scraper 14 shovels the scraped frost onto the sliding plate 18, and the insulation layer 13 isolates the inner cavity of the loading compartment 1 from the outside, thereby preventing the cold air in the inner cavity of the loading compartment 1 from overflowing. The frost slides into the inner cavity of the recovery box 19 through the slope provided on the sliding plate 18, thereby collecting the frost inside the recovery box 19.

[0030] The provision of the thermal insulation layer 13 allows cold air to escape from the inner cavity of the loading compartment 1 during the process of loading and unloading food, thereby reducing temperature fluctuations in the inner cavity of the loading compartment 1 and reducing the workload of the refrigeration device 2. At the same time, it isolates external moisture from entering the interior of the loading compartment 1, thereby avoiding frost caused by moisture entering the interior of the loading compartment 1.

[0031] The rubber scraper 14 and the recovery component are provided to scrape off and collect the frost attached to the loading compartment 1 and the air outlet 3, thereby maintaining the cleanliness of the inner cavity of the loading compartment 1 and preventing the frost from blocking the air outlet 3 and preventing the cold air from entering the loading compartment 1. The scraped frost is collected in the recovery box 19 to prevent the frost from falling to the ground and causing the ground to become wet, thereby reducing the number of work steps for the staff to clean the frost.

[0032] The working steps of the anti-drop assembly are as follows: When the switch door connected to the loading compartment 1 is opened by the staff, the switch door drags the wire rope 23 outward, and the wire rope 23 drives the guide wheel 22 to rotate clockwise, so the guide wheel 22 drives the gear 21 to rotate synchronously, and the gear 21 drives its meshing toothed plate 26 to slide vertically upward on the surface of the connecting plate 7, and at the same time the guide wheel 22 drives the synchronous wheel 24 to rotate synchronously, so the three synchronous wheels 24 realize synchronous rotation through the synchronous chain 25, so that the gaps between the three connecting plates 7 are filled by the rising of the three toothed plates 26. Therefore, when the loading hollow frame 6 slides out of the inner cavity of the loading compartment 1, the food on the loading hollow frame 6 cannot fall from the connecting plate 7 to the ground. When the food needs to be taken out from the loading hollow frame 6, the staff unscrews the terminal 27, and at the same time the staff rotates the guide wheel 22 counterclockwise, and repeats the above reverse working steps.

[0033] The anti-drop component can prevent food from falling when unloading food, thereby preventing food from falling to the ground and causing contamination, thereby reducing food loss and waste, and preventing dropped food from colliding with unloading personnel.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food cold chain transport device, comprising a loading compartment (1), characterized in that: A refrigeration device (2) is fixedly installed on the top of the loading compartment (1), an air outlet (3) is opened on the top of the inner cavity of the loading compartment (1), and a spacing component is arranged inside the loading compartment (1), and the spacing component includes a sliding groove (4) symmetrically opened inside the loading compartment (1), and the sliding grooves (4) are arranged at least two, and each of the sliding grooves (4) is slidably connected to a connecting rod (5), and the two connecting rods (5) are rotatably connected to a loading hollow frame (6), and the loading hollow frame (6) is fixedly connected to There are no less than three connecting plates (7), and a suction assembly is arranged on the loading hollow frame (6). The suction assembly includes a suction pipe (8) symmetrically fixedly connected to the side wall of the loading hollow frame (6). The connecting plate (7) is a hollow stainless steel plate. The inner cavities of the three connecting plates (7) are fixedly connected to a water storage bin (9). A plurality of air outlet pipes (10) are equidistantly arranged and fixedly installed on the connecting plate (7), and the other end of the air outlet pipe (10) is fixedly connected to the water storage bin (9). A plurality of circular holes (11) are arranged in an array on the connecting plate (7).

2. A food cold chain transportation device according to claim 1, characterized in that: The loading compartment (1) is provided with a sealed component inside, the sealed component comprising two connecting rods (12) symmetrically rotatably connected to the side wall of the loading hollow frame (6), at least two of the two connecting rods (12) are provided, one end of each of the two connecting rods (12) away from the loading hollow frame (6) is rotatably connected to an insulation layer (13), and the side of the insulation layer (13) close to the loading hollow frame (6) is fixedly connected to a rubber scraper (14).

3. A food cold chain transportation device according to claim 1, characterized in that: A recycling component is provided inside the loading compartment (1), and the recycling component includes a touch switch (15) fixedly installed inside each sliding groove (4). A sliding groove (16) is provided on the loading compartment (1), and a groove (17) is provided on the loading compartment (1). The sliding groove (16) is communicated with the groove (17). A sliding plate (18) is slidably connected inside the sliding groove (16). A recycling box (19) is fixedly connected to the bottom of the sliding plate (18). The opening of the recycling box (19) is flush with the upper surface of the sliding plate (18). An electric telescopic rod (20) is symmetrically fixedly connected inside the sliding groove (16), and no less than two electric telescopic rods (20) are provided.

4. A food cold chain transportation device according to claim 1, characterized in that: The side walls of the loading hollow frame (6) are equidistantly connected to at least three gears (21) for rotation. The side wall of the gear (21) located at the top is fixedly connected to a guide wheel (22), and a steel wire rope (23) is wound around the guide wheel (22). The three gears (21) are fixedly connected to synchronous wheels (24). The guide wheel (22) is located between the top gear (21) and the synchronous wheel (24). The two gears (21) located at the bottom are fixedly connected to two synchronous wheels (24). A synchronous chain (25) is transmission-connected between the three synchronous wheels (24). The side walls of the three connecting plates (7) are slidably connected to toothed plates (26). The loading compartment (1) is rotatably connected to two door bodies, and the two door bodies are threadedly connected to terminal posts (27).

5. A food cold chain transportation device according to claim 1, characterized in that: The water storage tank (9) is penetrated and fixedly connected to the outside of the air outlet pipe (10), and a suction pump is installed in the inner cavity of the suction pipe (8).

6. A food cold chain transportation device according to claim 1, characterized in that: The suction pipe (8) and the loading hollow frame (6) are in communication with each other, the loading hollow frame (6) and the inner cavity of the connecting plate (7) are in communication with each other, and the air outlet pipe (10) and the circular hole (11) are arranged crosswise.

7. A food cold chain transportation device according to claim 2, characterized in that: The insulation layer (13) is made of an extruded polystyrene foam board, the size of the rubber scraper (14) is compatible with the insulation layer (13), and the size of the insulation layer (13) is compatible with the inner cavity of the loading compartment (1).

8. A food cold chain transportation device according to claim 3, characterized in that: The recovery box (19) is slidably adapted to fit in the groove (17), and two sides of the sliding plate (18) are respectively fixedly connected to the extended ends of two electric telescopic rods (20).

9. A food cold chain transportation device according to claim 3, characterized in that: The top of the sliding plate (18) is arranged as a slope, and the sliding plate (18) and the recovery box (19) are communicated with each other.

10. A food cold chain transportation device according to claim 4, characterized in that: The gear (21) is meshed with the toothed plate (26), the three synchronous wheels (24) are meshed with the synchronous chain (25), and the terminal (27) is fixedly connected to an end of the steel wire rope (23) away from the guide wheel (22).

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