Cold-chain logistics transportation equipment

Abstract

The cold-chain logistics transportation equipment relates to the technical field of cold-chain transportation and comprises a frame body, a cover plate is arranged at the top of the frame body, a telescopic frame is fixedly connected to the bottom of the cover plate, the bottom of the telescopic frame is attached to the top of the frame body, and a plurality of through holes are formed in the left side and the right side of the frame body. Through mutual cooperation of a cover plate, a refrigerator, an elastic plate, an air bag and other structures, the cover plate can be matched with a telescopic frame to seal the top of a frame body, more first swing plates and more second swing plates are stacked, the storage space of the device is expanded, and if the refrigerator breaks down, a third threaded rod is rotated, so that the refrigerator breaks down. The fixing frame and the refrigerator can be conveniently mounted and dismounted if the device falls into the water, the device can be conveniently adsorbed in a truck or a ship through a suction cup, a plurality of frame bodies can be connected through a second threaded rod in cooperation with an elastic rope and a second threaded cylinder, and if the device falls into the water accidentally on the ship, the device can float on the water surface through an air bag; therefore, time is provided for an operator to fish.

Description

Technical Field

[0001] This invention relates to the field of cold chain transportation technology, specifically to a cold chain logistics transportation device. Background Technology

[0002] Cold chain refers to a special supply chain system in which certain food raw materials, processed food or semi-finished products, special biological products and pharmaceuticals are kept in a specific low-temperature environment necessary for the product at all stages of product processing, storage, transportation, distribution and retail, and use, after being acquired, processed and inactivated, in order to reduce losses, prevent contamination and deterioration, and ensure the safety of food, biosafety and pharmaceuticals.

[0003] However, existing cold chain logistics transportation equipment has some problems in use. Existing cold chain logistics often only supports the cold chain transportation of one type of goods, which reduces the applicability of the equipment. At the same time, the existing technology often piles goods together inside the transportation equipment. If vegetables and fruits are piled together, they may collide and cause surface defects, which will affect subsequent sales. Moreover, it is not convenient to adjust the internal space ratio of the transportation equipment, which reduces the transportation efficiency of the equipment. During transportation, the equipment is often placed on trucks or ships. If an accident occurs on a ship and the transportation equipment falls into the water, it may sink underwater in a short time, making it difficult to salvage. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide a cold chain logistics transportation device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cold chain logistics transportation device, comprising a frame, a cover plate at the top of the frame, a telescopic frame fixedly connected to the bottom of the cover plate, the bottom of the telescopic frame and the top of the frame being fitted together, several through holes on both the left and right sides of the frame, fixed frames on both the left and right sides of the frame, first threaded holes near the four corners on the side of the fixed frames away from the frame, second threaded holes near the four corners on both the left and right sides of the frame, third threaded rods threaded into the first threaded holes, one end of the third threaded rods threaded into an adjacent second threaded hole, a refrigerator fixedly connected to the inner cavity of the fixed frames, limit plates fixedly connected to the bottom of both the left and right sides of the telescopic frame, each limit plate having a third threaded hole, fourth threaded holes near the front and rear sides of the top of the fixed frames, bolts threaded into the third threaded holes, the bottom end of the bolts threaded into an adjacent fourth threaded hole, and an adjustment mechanism provided in the inner cavity of the frame.

[0006] Preferably, the adjustment mechanism includes a baffle located at the center of the inner cavity of the frame. The baffle has first grooves at its top and bottom, each containing a third magnet fixedly connected to it. The lower third magnet is attached to the bottom of the inner cavity of the frame. Several T-slots are formed at the center of the front and rear sides of the inner cavity of the frame. T-plates are fixedly connected to the front and rear sides of the baffle, located within adjacent T-slots. The front and rear sides of the baffle are fitted against the sidewalls of the inner cavity of the frame. Several U-shaped blocks are provided on the left and right sides of the inner cavity of the frame. A first swing plate is hinged to the inner cavity of each U-shaped block. A second swing plate is hinged to the side of each first swing plate away from the U-shaped block. The two first swing plates are hinged to each other, and the two adjacent second swing plates are hinged to each other. A second groove is provided on the side of the U-shaped block away from the first swing plate. A second magnet is fixedly connected in each of the second grooves. The second magnet is respectively attached to the adjacent baffle and the inner wall of the frame cavity. A vertical cylinder is fixedly connected to the top of each U-shaped block, and a vertical rod is fixedly connected to the bottom of each U-shaped block. The vertical rod is located in the adjacent vertical cylinder. Several storage cylinders are provided on the left and right sides of the inner cavity of the frame. A third groove is provided at the bottom of each storage cylinder. A fourth magnet is fixedly connected in each of the third grooves. The bottom of the fourth magnet is attached to the bottom of the inner cavity of the frame.

[0007] Preferably, the frame has several ventilation holes on both the front and rear sides near the left and right sides, and elastic plates are provided on both the front and rear sides near the left and right sides. An elastic L-shaped plate is fixedly connected to the bottom of each elastic plate. The side of the elastic L-shaped plate away from the elastic plate is fixedly connected to the outer edge of the frame. Several elastic sealing posts are fixedly connected to the side of the elastic plate near the frame. The elastic sealing posts are located in adjacent ventilation holes.

[0008] Preferably, a sliding groove is provided at the top of the inner cavity of the cover plate, a slider is movably connected in the sliding groove, a fixing plate is fixedly connected to the bottom of each slider, an elastic band is fixedly connected to the bottom of the fixing plate, a connecting plate is fixedly connected to the bottom of the elastic band, a fourth groove is provided at the bottom of the connecting plate, a first magnet is fixedly connected in the fourth groove, and the first magnet and the third magnet located above it are fitted together.

[0009] Preferably, a first threaded cylinder is inserted into the top of each of the fixed frames, a first threaded rod is threaded into the inner cavity of each of the first threaded cylinders, a horizontal plate is inserted into the top of each of the first threaded rods, a rope is fixedly connected to the bottom of each of the horizontal plates, a hook is fixedly connected to the bottom of each of the ropes, a fixed post is fixedly connected to the top of the cover plate near the left and right sides, a connecting ring is fixedly connected to the top of each fixed post, and the hook is sleeved on the outer edge of the adjacent connecting ring.

[0010] Preferably, airbags are fixedly connected to the bottom of the frame near the front and rear sides, and the cross-section of the airbags is L-shaped. Support columns are fixedly connected to the bottom of the frame near the four corners, and suction cups are fixedly connected to the bottom of the support columns.

[0011] Preferably, the inner cavity sidewalls of the frame and the outer edge of the baffle are made of metal. A second threaded cylinder is fixedly connected to each of the front and rear sides of the frame near the four corners. An elastic rope is provided on the side of the second threaded cylinder away from the frame. A second threaded rod is fixedly connected to both ends of the elastic rope. The second threaded rod is threadedly connected to the adjacent second threaded cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the interplay between structures such as the cover plate, cooler, elastic plate, and airbag to achieve a sealed top of the frame by the cover plate and telescopic frame, allowing for the stacking of more first and second swing plates, thus expanding the storage space of the device. If the cooler malfunctions, rotating the third threaded rod facilitates the installation and disassembly of the fixed frame and cooler. The suction cup allows the device to be easily attached to a truck or boat. The second threaded rod, in conjunction with the elastic rope and the second threaded cylinder, can connect multiple frames. If the device is accidentally dropped into the water on a boat, the airbag can float the device on the water surface, giving operators time to retrieve it. By cooperating with the baffle, the first swing plate, the storage tube, and the second magnet, the baffle can adjust the space ratio inside the frame. Goods are placed on the left and right sides of the frame's inner cavity. Then, the first swing plate, the second swing plate, and the U-shaped block are taken out. The swing angles of the first and second swing plates are adjusted according to the size of the space. The U-shaped block is then attached to the side wall of the frame's inner cavity and the surface of the baffle by the second magnet, which can divide the frame's interior into multiple layers for storage, improving the device's storage efficiency. The storage tube can be placed between adjacent first and second swing plates and limited by the first swing plate, the second swing plate, and the fourth magnet. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is an exploded view of the invention from below; Figure 5 This is an exploded view of the cover plate of the component of the present invention; Figure 6 This is a bottom view of the first magnet, a component of the present invention. Figure 7 This is a left view of the fixing frame of the component of the present invention; Figure 8 This is a schematic diagram of the first threaded cylinder structure of the component of the present invention; Figure 9 This is a schematic diagram of the component frame structure of the present invention; Figure 10 This is a schematic diagram of the first swing plate structure of the component of the present invention; Figure 11 This is a top view of the second swing plate of the component of the present invention; Figure 12 This is an exploded view of the component frame of the present invention; Figure 13 This is a schematic diagram of the baffle structure of the component of the present invention; Figure 14 This is a schematic diagram of the T-shaped plate structure of the component of the present invention; Figure 15 This is a schematic diagram of the elastic sealing column structure of the component of the present invention; Figure 16 This is a schematic diagram of the component storage tube structure of the present invention; Figure 17 This is a bottom view schematic diagram of the fourth magnet structure of the component of the present invention; Figure 18 for Figure 5 Enlarged view of point A in the middle; Figure 19 for Figure 8 Enlarged view of section B in the middle.

[0014] Labels in the diagram: 1. Frame; 2. Cover plate; 3. Telescopic frame; 4. Fixed frame; 5. Elastic plate; 6. Airbag; 7. Support column; 8. Suction cup; 9. First threaded cylinder; 10. First threaded rod; 11. Horizontal plate; 12. Connecting plate; 13. Fixed plate; 14. Slider; 15. Elastic band; 16. First magnet; 17. Limiting plate; 18. Bolt; 19. Cooler; 20. Third threaded rod; 21. Second threaded cylinder; 22. Elastic rope; 23. Second threaded rod; 24. U-shaped block; 25. Vertical cylinder; 26. Vertical rod; 27. First swing plate; 28. Second swing plate; 29. ​​Second magnet; 30. T-shaped plate; 31. Third magnet; 32. Elastic sealing column; 33. Elastic L-shaped plate; 34. Storage cylinder; 35. Fourth magnet; 36. Connecting ring; 37. Fixed column; 38. Rope; 39. Hook; 40. Baffle. Detailed Implementation

[0015] Please see Figures 1-19 The present invention provides a technical solution: Example 1:

[0016] A cold chain logistics transportation device includes a frame 1, a cover plate 2 on the top of the frame 1, a telescopic frame 3 fixedly connected to the bottom of the cover plate 2, the bottom of the telescopic frame 3 and the top of the frame 1 being fitted together, several through holes on the left and right sides of the frame 1, a fixed frame 4 on the left and right sides of the frame 1, a first threaded hole on the side of the fixed frame 4 away from the frame 1 near the four corners, a second threaded hole on the left and right sides of the frame 1 near the four corners, a third threaded rod 20 threadedly connected to the first threaded hole, one end of the third threaded rod 20 threadedly connected to the adjacent second threaded hole, a refrigerator 19 fixedly connected to the inner cavity of the fixed frame 4, a limit plate 17 fixedly connected to the left and right sides of the telescopic frame 3 near the bottom, a third threaded hole on the limit plate 17, a fourth threaded hole on the top of the fixed frame 4 near the front and rear sides, a bolt 18 threadedly connected to the third threaded hole, the bottom end of the bolt 18 threadedly connected to the adjacent fourth threaded hole, and an adjustment mechanism in the inner cavity of the frame 1. The top of the inner cavity of the cover plate 2 has a sliding groove, in which a slider 14 is movably connected. A fixing plate 13 is fixedly connected to the bottom of each slider 14. An elastic band 15 is fixedly connected to the bottom of the fixing plate 13. A connecting plate 12 is fixedly connected to the bottom of the elastic band 15. A fourth groove is formed at the bottom of the connecting plate 12, in which a first magnet 16 is fixedly connected. The first magnet 16 and the third magnet 31 located above it are fitted together. A first threaded cylinder 9 is inserted into the top of each fixing frame 4. A first threaded rod 10 is threadedly connected to the inner cavity of each threaded cylinder 9. A horizontal plate 11 is inserted into the top of each threaded rod 10. A rope 38 is fixedly connected to the bottom of each horizontal plate 11. A hook 39 is fixedly connected to the bottom of each rope 38. The top of the cover plate 2 near the left and right sides... Fixed columns 37 are fixedly connected, and connecting rings 36 are fixedly connected to the top of each fixed column 37. Hooks 39 are sleeved on the outer edge of adjacent connecting rings 36. Airbags 6 are fixedly connected to the bottom of the frame 1 near the front and rear sides. The cross-section of the airbags 6 is L-shaped. Support columns 7 are fixedly connected to the bottom of the frame 1 near the four corners. Suction cups 8 are fixedly connected to the bottom of each support column 7. The inner cavity sidewalls of the frame 1 and the outer edge of the baffle 40 are made of metal. Second threaded cylinders 21 are fixedly connected to the front and rear sides of the frame 1 near the four corners. Elastic ropes 22 are provided on the side of the second threaded cylinders 21 away from the frame 1. Second threaded rods 23 are fixedly connected to both ends of the elastic ropes 22. The second threaded rods 23 are threadedly connected to the adjacent second threaded cylinders 21. The cover plate 2, together with the telescopic frame 3, can seal the top of the frame 1 and stack more first swing plates 27 and second swing plates 28, expanding the storage space of the device. If the cooler 19 malfunctions, rotating the third threaded rod 20 makes it easy to install and remove the fixed frame 4 and the cooler 19. The suction cup 8 can easily attach the device to a truck or boat. The second threaded rod 23, together with the elastic rope 22 and the second threaded cylinder 21, can connect multiple frames 1. If the device is accidentally dropped into the water on a boat, the airbag 6 can float the device on the water surface, thus giving the operator time to retrieve it. Example 2:

[0017] The adjustment mechanism includes a baffle 40, which is located at the center of the inner cavity of the frame 1. The baffle 40 has first grooves at its top and bottom, and a third magnet 31 is fixedly connected to each of these first grooves. The lower third magnet 31 is attached to the bottom of the inner cavity of the frame 1. Several T-slots are formed at the center of the front and rear sides of the inner cavity of the frame 1. T-plates 30 are fixedly connected to the front and rear sides of the baffle 40, and are located in adjacent T-slots. The front and rear sides of the baffle 40 are fitted against the sidewalls of the inner cavity of the frame 1. Several U-shaped blocks 24 are provided on the left and right sides of the inner cavity of the frame 1. A first swing plate 27 is hinged to the inner cavity of each U-shaped block 24. A second swing plate 28 is hinged to the side of the first swing plate 27 away from the U-shaped block 24. The first swing plates 27 are hinged to each other, and the two adjacent second swing plates 28 are hinged to each other. The side of the U-shaped block 24 away from the first swing plate 27 is provided with a second groove. A second magnet 29 is fixedly connected in the second groove. The second magnet 29 is respectively attached to the adjacent baffle 40 and the inner cavity side wall of the frame 1. A vertical cylinder 25 is fixedly connected to the top of the U-shaped block 24, and a vertical rod 26 is fixedly connected to the bottom of the U-shaped block 24. The vertical rod 26 is located in the adjacent vertical cylinder 25. Several storage cylinders 34 are provided on the left and right sides of the inner cavity of the frame 1. A third groove is provided at the bottom of the storage cylinder 34. A fourth magnet 35 is fixedly connected in the third groove. The bottom of the fourth magnet 35 is attached to the bottom of the inner cavity of the frame 1. Several ventilation holes are provided on the front and rear sides of the frame 1 near the left and right sides. Elastic plates 5 are provided on the front and rear sides of the frame 1 near the left and right sides. Elastic L-shaped plates 33 are fixedly connected to the bottom of each elastic plate 5. The side of the elastic L-shaped plate 33 away from the elastic plate 5 is fixedly connected to the outer edge of the frame 1. Several elastic sealing posts 32 are fixedly connected to the side of the elastic plate 5 near the frame 1. The elastic sealing posts 32 are located in the adjacent ventilation holes. The baffle 40 can adjust the space ratio inside the frame 1. The goods are placed on the left and right sides of the inner cavity of the frame 1. Then, the first swing plate 27, the second swing plate 28 and the U-shaped block 24 are taken out. According to the size of the space, the swing angle of the first swing plate 27 and the second swing plate 28 is adjusted. Then, the U-shaped block 24 is attracted to the inner cavity side wall of the frame 1 and the surface of the baffle 40 by the second magnet 29. The interior of the frame 1 can be divided into multiple layers for storage, which improves the storage efficiency of the device. The storage tube 34 can be placed between the adjacent first swing plate 27 and second swing plate 28 and limited by the first swing plate 27, the second swing plate 28 and the fourth magnet 35.

[0018] Working Principle: Before the device starts working, the operator adjusts the position of the baffle 40 according to the required amount of goods for cold chain transportation, places the baffle 40 on top of the frame 1, aligns the T-shaped plate 30 with the T-slot on the frame 1, and moves the baffle 40 downwards to the inside of the frame 1. Then, frozen goods are placed on the left and refrigerated goods on the right. In actual operation, the position of the goods can be adjusted according to the operator's work habits. After laying a layer of goods, the operator takes out the first swing plate 27, the second swing plate 28, and the U-shaped block 24, and places them on top of the goods. The first swing plate 27 and the second swing plate 28 adjust their angles according to the space inside the frame 1, moving the U-shaped block 24... The U-shaped block 24 is close to the inner cavity side wall and baffle 40 of the frame 1. The U-shaped block 24 is attracted to the inner cavity side wall and baffle 40 of the frame 1 by the second magnet 29, thereby limiting the first swing plate 27 and the second swing plate 28. Then, the second layer of goods is placed. After the placement is completed, another first swing plate 27 and second swing plate 28 are taken out and the above operation is repeated. The first swing plate 27 and second swing plate 28 are placed on top of the second layer of goods. At the same time, the vertical rod 26 at the bottom of the second layer U-shaped block 24 is inserted into the vertical cylinder 25 of the first layer, thereby reinforcing the second layer of first swing plate 27 and second swing plate 28. When the goods are stacked to a certain height, the loading is completed. The cover plate 2 is taken out and placed on top of the highest layer of goods. The fixing plate 13 is moved left and right to fix it. Plate 13 drives slider 14 to move. Fixed plate 13 drives connecting plate 12 to move via elastic band 15. Connecting plate 12 drives first magnet 16 to move, aligning connecting plate 12 with baffle 40. Then, connecting plate 12 moves downward, causing elastic band 15 to stretch. First magnet 16 is attracted to third magnet 31 at the top of baffle 40. Telescopic frame 3 is pulled, and its bottom is attached to the top of frame 1. Then, first threaded cylinder 9 is rotated, causing first threaded rod 10 to rotate. First threaded rod 10 drives horizontal plate 11 to move up and down, moving horizontal plate 11 to the top of cover plate 2. Hook 39 at the bottom of horizontal plate 11 is passed through connecting ring 36 at the top of cover plate 2, thus limiting cover plate 2. Then, it is removed. Bolt 18 is passed through the limiting plate 17 and rotated to the top of the fixed frame 4 to complete the installation of the telescopic frame 3 and limit its movement. The device is then transported to a truck or ship using external equipment. Suction cup 8 adheres to the platform, ensuring the stability of the device's foundation. When multiple frames 1 need to be connected, one of the second threaded rods 23 is rotated into the second threaded cylinder 21 on another frame 1 to complete the connection. The refrigeration unit 19 is then activated, adjusting the temperature for different goods. Refrigerated goods sometimes require ventilation; in this case, the operator moves the elastic plate 5 on the side of the refrigerated goods outwards, causing the elastic sealing column 32 to move.The elastic sealing column 32 is away from the through hole on the frame 1, allowing ventilation for refrigerated goods. The elastic L-shaped plate 33 limits the elastic plate 5. If the device is accidentally dropped into the water on a ship, the two airbags 6 can help the device float on the water, giving operators time to retrieve it. When the refrigerator 19 malfunctions, the hook 39 is first removed from the connecting ring 36, and then the third threaded rod 20 is rotated away from the frame 1, allowing the fixing frame 4 to be disassembled for repair or replacement of the refrigerator 19. The storage cylinder 34 is placed between the first swing plate 27 and the second swing plate 28 when there are few goods. The fourth magnet 35 at the bottom of the storage cylinder 34 is attracted to the bottom of the inner cavity of the frame 1, thus limiting the storage cylinder 34. The storage cylinder 34 can hold small goods, and it is easy to disassemble when not in use.

[0019] Example 3: Cold chain transportation of leafy green vegetables by road (collision prevention + flexible temperature control scenario) Addressing the need for precise temperature control (0-4℃) in road transport of leafy green vegetables such as spinach and lettuce, which are easily damaged by stacking and squeezing, this equipment utilizes space adjustment, layered storage, and flexible temperature control functions to achieve damage-free transportation of vegetables.

[0020] Implementation steps (1) Equipment foundation assembly and refrigeration system construction Take frame 1 and attach the fixing frame 4 to the left and right sides of frame 1 (aligning the first and second threaded holes at the four corners). Screw the third threaded rod 20 into the first and second threaded holes in sequence until the fixing frame 4 is tightly fixed to frame 1. Then, embed the cooler 19 into the inner cavity of the fixing frame 4 and turn on the power. The preset cooling temperature is 3°C. The cold energy generated by the cooler 19 enters the inner cavity through the through holes on both sides of frame 1 to initially establish a low-temperature environment.

[0021] Take the elastic plate 5 and fix it to the front and rear sides of the frame 1 (corresponding to the vent positions) through the elastic L-shaped plate 33, so that the elastic sealing post 32 on the elastic plate 5 is inserted into the adjacent vent. According to the respiration intensity of the vegetables, the insertion depth of the elastic sealing post 32 can be adjusted by lightly pressing the elastic plate 5. When the vegetables are respiring vigorously in the early stage of transportation, pull out part of the elastic sealing post 32 to leave 3-4 vents for ventilation and avoid carbon dioxide accumulation. When the respiration weakens in the later stage of transportation, insert the elastic sealing post 32 completely into the vent to seal the vent and reduce the loss of cold.

[0022] (2) Internal space adjustment and layered storage Take the baffle 40 and align the T-shaped plates 30 on its front and back sides with the T-shaped grooves on the front and back sides of the inner cavity of the frame 1. Slide it down along the T-shaped grooves until the third magnet 31 at the bottom of the baffle 40 fits against the bottom of the inner cavity of the frame 1. According to the zoning requirements of the types of vegetables to be transported (such as putting spinach on the left and lettuce on the right), move the baffle 40 left and right to the 1:1 ratio position in the inner cavity of the frame 1. The T-shaped plates 30 and the T-shaped grooves cooperate to restrict the shaking of the baffle 40. The third magnet 31 is attracted and fixed to the bottom of the metal frame 1.

[0023] Take 6 sets of U-shaped blocks 24. The inner cavity of each set of U-shaped blocks 24 is hinged to a first swing plate 27. The side of the first swing plate 27 away from the U-shaped block 24 is hinged to a second swing plate 28. The first swing plates 27 of adjacent sets are hinged to each other, and the second swing plates 28 are hinged to each other. Three sets of U-shaped blocks 24 are attracted to the left inner cavity side wall (metal material) of the frame 1 by the second magnet 29. The other three sets are attracted to the right side wall (metal material) of the baffle 40 by the second magnet 29. After attraction, adjust the swing angle of the first swing plate 27 and the second swing plate 28 so that each set of swing plates forms an "inclined support surface" (at an angle of 15° with the horizontal direction to prevent vegetables from slipping).

[0024] Take the vertical rod 26 and the vertical tube 25, insert the vertical rod 26 at the bottom of the upper U-shaped block 24 into the vertical tube 25 at the top of the lower U-shaped block 24, so that the three sets of U-shaped blocks 24 are stacked vertically, and finally three layers of storage space are formed on the left and right sides of the frame 1, with a spacing of 15cm between each layer (to match the height of the vegetable packaging box). Place the vegetable packaging boxes one by one into the layered space to avoid stacking and squeezing.

[0025] (3) Sealing and fixing reinforcement Take the cover plate 2, align the telescopic frame 3 at the bottom of the cover plate 2 with the top of the frame 1 and press it down so that the telescopic frame 3 fits completely against the top of the frame 1; then align the third threaded hole of the limiting plate 17 (fixed to the bottom of the left and right sides of the telescopic frame 3) with the fourth threaded hole at the top of the fixing frame 4, and screw the bolt 18 into the third threaded hole and the fourth threaded hole to achieve a sealed fixation between the cover plate 2 and the frame 1, thereby reducing cold leakage.

[0026] Align the support column 7 at the bottom of the frame 1 with the truck bed floor and press the frame 1 down so that the suction cup 8 is completely attached to the truck bed floor (adsorption force ≥ 500N) to prevent the frame 1 from sliding when the truck brakes suddenly or bumps. Implementation effect

[0027] 1) Vegetables are not crushed or damaged: The layered storage space allows vegetable packaging boxes to be placed independently, reducing the breakage rate after transportation from 15% of traditional stacking to less than 2%; 2) Temperature stability: The refrigerator 19 continuously controls the temperature, and the temperature fluctuation inside the frame 1 is ≤±1℃, which meets the requirements for the preservation of leafy green vegetables; 3) Ease of operation: No professional tools are required for the entire assembly process, and a single person can complete the assembly and debugging of one device within 30 minutes.

[0028] Example 4: Cold chain transportation of live shrimp and crabs by sea (taking anti-sinking + multi-equipment linkage as an example) In response to the need to prevent live shrimp, swimming crabs and other aquatic products from shifting due to turbulence during sea transport and to protect equipment from accidental sinking, this equipment utilizes anti-sinking airbags, multi-device connection and fixed storage functions to achieve safe transportation of aquatic products.

[0029] Implementation steps (1) Anti-settlement system and foundation fixing construction Take frame 1, fix the L-shaped airbag 6 to the front and rear sides of the bottom of frame 1 (connected to the pre-set mounting holes at the bottom of frame 1 by bolts), and fill the airbag 6 with compressed air (inflate to 80% of the volume of airbag 6 to ensure that the buoyancy after falling into the water is ≥ 1.5 times the total weight of the equipment); then attach the suction cup 8 at the bottom of the support column 7 to the anti-slip mat in the cargo hold of the ship, doubly fixing it to prevent the frame 1 from shifting due to the ship's rocking.

[0030] If two pieces of equipment need to be transported at the same time, take the elastic rope 22 and screw the second threaded rods 23 at both ends into the second threaded cylinders 21 on the front and rear sides of the two frames 1 respectively (each frame 1 corresponds to 2 sets of second threaded cylinders 21, and the tension of the elastic rope 22 should be such that the distance between the two frames 1 is 10cm) to achieve linkage and fixation of multiple pieces of equipment and avoid collisions between the equipment.

[0031] (2) Specialized storage and temperature control for aquatic products Take a storage tube 34 (12cm inner diameter, suitable for the diameter of shrimp and crab net cages), embed the fourth magnet 35 into the third groove at the bottom of the storage tube 34, and then place the storage tube 34 at the bottom of the inner cavity of the frame 1 so that the fourth magnet 35 is attracted and fixed to the bottom (metal material) of the frame 1. Place a total of 10 storage tubes 34 (arranged in 2×5); put the net cages containing live shrimp and crabs into the storage tubes 34 one by one. The side walls of the storage tubes 34 can limit the shaking of the net cages and prevent the shrimp and crabs from breaking their limbs.

[0032] Repeat the "Refrigeration System Setup" steps in Example 1, preset the temperature of the refrigerator 19 to 5℃ (the suitable temperature for fresh shrimp and crab), and adjust the opening of the vent holes through the elastic plate 5 (keeping 2 vent holes) to maintain the low temperature and avoid excessive humidity in the cavity, which would cause the shrimp and crab to lack oxygen.

[0033] (3) Cover plate anti-loosening and emergency protection Take the first threaded cylinder 9 and insert its bottom into the preset insertion hole at the top of the fixing frame 4; screw the first threaded rod 10 into the inner cavity of the first threaded cylinder 9 until the top of the first threaded rod 10 extends about 10cm out of the first threaded cylinder 9; then put the horizontal plate 11 on the top of the first threaded rod 10 and weld it in place; take the rope 38 (adjust the length to 50cm), fix its top to the bottom of the horizontal plate 11, and hang the hook 39 at the bottom on the connecting ring 36 at the top of the cover plate 2; tighten the rope 38 and tie a knot to fix it in place to prevent the cover plate 2 from loosening due to violent rocking of the ship.

[0034] Check the backup power supply of the refrigeration unit 19 (connected to the ship's emergency power supply) and the airtightness of the airbag 6 to ensure that if the ship encounters a surge that causes the equipment to fall into the water, the airbag 6 can immediately support the equipment to float (float time ≥ 4 hours), thus buying time for salvage. Implementation effect

[0035] 1) Anti-sinking reliability: After the equipment falls into the water, the airbag 6 can stably support the floating, with no risk of sinking; 2) Survival rate of aquatic products: The 34-cell storage tube restricts the shaking of the net cage, and combined with precise temperature control at 5℃, the survival rate of shrimp and crabs during transportation has increased from 70% in traditional transportation to 95%; 3) Multi-device collaboration: The elastic rope 22 and the hook 39 work together, and there is no collision or displacement phenomenon after multiple devices are linked.

[0036] Example 5: Stacking and transporting frozen dumplings using multiple devices (taking space maximization and low-temperature preservation as an example) To address the need for high-density stacking and transportation of quick-frozen dumplings (stored at -18℃) in supermarket distribution, and to prevent low-temperature leakage, this equipment utilizes stacking fixation, layered storage, and efficient refrigeration functions to maximize space utilization.

[0037] Implementation steps (1) Multi-layer equipment stacking and fixing Take three pre-assembled frames 1 (including the refrigerator 19 and adjustment mechanism), and attach the suction cup 8 of the first frame 1 to the floor of the delivery vehicle. Align the bottom of the second frame 1 with the top of the first frame 1, and press it so that the support column 7 of the second frame 1 fits against the top of the first frame 1 (limited by the pre-set positioning groove on the top). Then repeat the connection method of "first threaded cylinder 9-first threaded rod 10-hook 39" in Embodiment 2, and use two sets of hooks 39 to connect and fix the cover plate 2 of the second frame 1 to the fixing frame 4 of the first frame 1. Similarly, stack the third frame 1 to form a "3-layer stacked structure", which occupies only 1 / 3 of the area of ​​a single device.

[0038] (2) Maximize the use of internal space For each frame 1, remove the baffle 40 (pull it out upwards along the T-slot), and evenly attach 8 sets of U-shaped blocks 24 to the four sides of the inner cavity of the frame 1 using the second magnet 29; unfold the first swing plate 27 and the second swing plate 28 of each set of U-shaped blocks 24 to a horizontal state, and hinge the adjacent swing plates to form a "horizontal layered plate", which is stacked vertically in 4 layers by the vertical rod 26 and the vertical cylinder 25, with a spacing of 20cm between each layer (adapted to the height of the frozen dumpling packaging box); lay the frozen dumpling packaging box (specification 20cm×15cm×5cm) flat on each layer of the "horizontal layered plate", each frame 1 can hold 36 boxes of dumplings, and the 3 machines can hold a total of 108 boxes, increasing the space utilization rate by 200%.

[0039] (3) Low-temperature preservation enhancement Set the temperature of the cooler 19 to -18℃, close all vents (with the elastic sealing post 32 fully inserted), and apply sealing tape to the joint between the cover plate 2 and the telescopic frame 3 (to further reduce cold leakage). Monitor the working status of the cooler 19 in real time during transportation. If a cooler 19 malfunctions, the fixing frame 4 can be quickly disassembled through the third threaded rod 20 to replace the spare cooler 19 (replacement time ≤ 10 minutes) to prevent the internal temperature from rising again. Implementation effect

[0040] 1) Space utilization: The three units of equipment occupy only 0.8 square meters when stacked, which is twice the space compared to traditional single-layer transportation; 2) Low temperature stability: The temperature inside the frame 1 is maintained at -18±0.5℃, and the frozen dumplings do not thaw or soften. 3) Ease of maintenance: The refrigerator 19 can be disassembled and replaced without disassembling the entire equipment, reducing maintenance costs.

Claims

1. A cold chain logistics transportation equipment, comprising a frame (1), characterized in that: The frame (1) has a cover plate (2) on top, and a telescopic frame (3) is fixedly connected to the bottom of the cover plate (2). The bottom of the telescopic frame (3) and the top of the frame (1) are fitted together. Several through holes are opened on both the left and right sides of the frame (1). Fixed frames (4) are provided on both the left and right sides of the frame (1). First threaded holes are opened on the side of the fixed frame (4) away from the frame (1) near the four corners. Second threaded holes are opened on both the left and right sides of the frame (1) near the four corners. Third threaded rods (20) are threaded into the first threaded holes. One end of the third threaded rod (20) is threaded into the adjacent second threaded hole. The inner cavity of the fixed frame (4) is fixedly connected to the cooler (19). The left and right sides of the telescopic frame (3) are fixedly connected to the bottom of the limit plate (17). The limit plate (17) is provided with a third threaded hole. The top of the fixed frame (4) is provided with a fourth threaded hole near the front and rear sides. The third threaded hole is threaded with a bolt (18). The bottom end of the bolt (18) is threaded into the adjacent fourth threaded hole. The inner cavity of the frame (1) is provided with an adjustment mechanism.

2. The cold chain logistics transportation equipment according to claim 1, characterized in that: The adjustment mechanism includes a baffle (40), which is located at the center of the inner cavity of the frame (1). The baffle (40) has a first groove at the top and bottom, and a third magnet (31) is fixedly connected in the first groove. The third magnet (31) located below is attached to the bottom of the inner cavity of the frame (1). Several T-shaped grooves are opened at the center of the front and rear sides of the inner cavity of the frame (1). T-shaped plates (30) are fixedly connected to the front and rear sides of the baffle (40). The T-shaped plates (30) are located in adjacent T-shaped grooves. The front and rear sides of the baffle (40) are attached to the sidewalls of the inner cavity of the frame (1). Several U-shaped blocks (24) are provided on the left and right sides of the inner cavity of the frame (1). A first swing plate (27) is hinged to the inner cavity of each U-shaped block (24). A second swing plate (28) is hinged to the side of the first swing plate (27) away from the U-shaped block (24). The first swing plates (27) are hinged to each other, and the two adjacent second swing plates (28) are hinged to each other. The side of the U-shaped block (24) away from the first swing plate (27) is provided with a second groove. The second magnet (29) is fixedly connected in the second groove. The second magnet (29) is respectively attached to the adjacent baffle (40) and the inner cavity sidewall of the frame (1). The top of the U-shaped block (24) is fixedly connected with a vertical cylinder (25). The bottom of the U-shaped block (24) is fixedly connected with a vertical rod (26). The vertical rod (26) is located in the adjacent vertical cylinder (25). The left and right sides of the inner cavity of the frame (1) are provided with several storage cylinders (34). The bottom of the storage cylinder (34) is provided with a third groove. The third groove is fixedly connected with a fourth magnet (35). The bottom of the fourth magnet (35) is attached to the bottom of the inner cavity of the frame (1).

3. The cold chain logistics transportation equipment according to claim 1, characterized in that: The frame (1) has several ventilation holes on its front and back sides near the left and right sides. The frame (1) has elastic plates (5) on its front and back sides near the left and right sides. The bottom of each elastic plate (5) is fixedly connected to an elastic L-shaped plate (33). The side of the elastic L-shaped plate (33) away from the elastic plate (5) is fixedly connected to the outer edge of the frame (1). The side of each elastic plate (5) near the frame (1) is fixedly connected to several elastic sealing columns (32). The elastic sealing columns (32) are located in adjacent ventilation holes.

4. A cold chain logistics transportation equipment according to claim 2, characterized in that: The top of the inner cavity of the cover plate (2) is provided with a sliding groove, and a slider (14) is movably connected in the sliding groove. A fixing plate (13) is fixedly connected to the bottom of the slider (14). An elastic band (15) is fixedly connected to the bottom of the fixing plate (13). A connecting plate (12) is fixedly connected to the bottom of the elastic band (15). A fourth groove is provided at the bottom of the connecting plate (12). A first magnet (16) is fixedly connected in the fourth groove. The first magnet (16) and the third magnet (31) located above are fitted together.

5. A cold chain logistics transportation equipment according to claim 1, characterized in that: The top of each fixed frame (4) is fitted with a first threaded cylinder (9), the inner cavity of each first threaded cylinder (9) is threaded with a first threaded rod (10), the top of each first threaded rod (10) is fitted with a horizontal plate (11), the bottom of each horizontal plate (11) is fixedly connected with a rope (38), the bottom end of each rope (38) is fixedly connected with a hook (39), the top of each cover plate (2) is fixedly connected with a fixed post (37) near the left and right sides, the top of each fixed post (37) is fixedly connected with a connecting ring (36), and the hook (39) is sleeved on the outer edge of the adjacent connecting ring (36).

6. A cold chain logistics transportation equipment according to claim 1, characterized in that: Airbags (6) are fixedly connected to the bottom of the frame (1) near the front and rear sides. The cross-section of the airbags (6) is L-shaped. Support columns (7) are fixedly connected to the bottom of the frame (1) near the four corners. Suction cups (8) are fixedly connected to the bottom of the support columns (7).

7. A cold chain logistics transportation equipment according to claim 2, characterized in that: The inner cavity sidewall of the frame (1) and the outer edge of the baffle (40) are made of metal. The front and rear sides of the frame (1) are fixedly connected to the four corners of the frame (1). The side of the second threaded cylinder (21) away from the frame (1) is provided with an elastic rope (22). The front and rear ends of the elastic rope (22) are fixedly connected to the second threaded rod (23). The second threaded rod (23) is threadedly connected to the adjacent second threaded cylinder (21).

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