Solar powered constant temperature flow box

Abstract

The utility model provides a kind of solar-powered constant-temperature logistics box, comprising: outer box, the upper end of the outer box body is connected with outer box cover by lock catch, the inside of the outer box body is provided with inner box body, the bottom of the outer box cover is fixed with the inner box cover compatible with the inner box body, control box is arranged between the outer box body and inner box body;Adjusting part, the adjusting part is fixed in the front surface of the outer box body, solar panel is fixed on the adjusting part, and the adjusting part is used to control the angle of solar panel;The solar-powered constant-temperature logistics box, by temperature adjusting part, active refrigeration and passive cold preservation are combined with double mode, ensure that the constant temperature in the box is uniform and fast, adjusting part adjusts solar panel angle by hinged support structure, maximizes light energy collection, docking part realizes stacking positioning by bearing seat and docking groove, and realizes the stable stacking and fixing of box body by using the mechanical interlocking and strong magnetic block adsorption of docking clamping plate and docking clamping block.

Description

Technical Field

[0001] This utility model relates to the field of logistics equipment technology, and more specifically, to a solar-powered constant temperature logistics box. Background Technology

[0002] With the rapid development of e-commerce and modern logistics, the demand for cold chain logistics is increasing, especially in the transportation of temperature-sensitive goods such as pharmaceuticals, fresh food, and precision chemicals. Maintaining a constant low-temperature environment during transportation is crucial to ensuring the quality and safety of goods.

[0003] However, most existing logistics boxes are powered by built-in batteries, whose operating time is limited by battery capacity. In long-distance transportation or scenarios where timely charging is not possible, there is a risk of battery depletion and temperature control system failure, leading to cargo damage. Although some products attempt to integrate solar panels, they are usually fixed installations that cannot be adjusted according to the sun's angle, resulting in low photoelectric conversion efficiency. Furthermore, when not transporting goods, solar panels can affect the stacking of logistics boxes, impacting transportation efficiency. Existing logistics boxes typically employ only one temperature control method, relying solely on electrically driven compressors for refrigeration or using only insulation methods, such as placing ice packs. This method cannot effectively cool down the boxes as needed. In addition, uneven air circulation often leads to temperature dead zones inside the box, affecting the constant temperature effect. Moreover, existing logistics boxes lack effective stacking designs, making it impossible to stably stack multiple layers. This not only wastes transportation space but may also cause damage to the box or cargo during transportation due to shaking or collapse. Utility Model Content

[0004] The purpose of this invention is to provide a solar-powered constant-temperature logistics box to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a solar-powered constant temperature logistics box, comprising: an outer box body, an outer box cover connected to the upper end of the outer box body by a latch, an inner box body disposed inside the outer box body, an inner box cover adapted to the inner box body fixed to the bottom of the outer box cover, and a control box disposed between the outer box body and the inner box body.

[0006] An adjustment section is fixed to the front surface of the outer casing, and a solar panel is fixed on the adjustment section. The adjustment section is used to control the angle of the solar panel.

[0007] A temperature control unit is disposed in the control box and the inner box, and is used to adjust the temperature inside the inner box;

[0008] A docking part, which is fixed to the outer casing and the outer casing cover, is used for the stable stacking of two adjacent outer casings in the vertical direction;

[0009] A closure section is installed on the outer box cover and the inner box cover to restrict the movement of goods in the inner box.

[0010] Furthermore, the temperature control unit includes a cooling chamber and a control chamber disposed in the control box, an inverter, a power supply and two coolers installed in the control chamber, a partition fixed in the middle of the cooling chamber, two guide fans symmetrically installed on the partition, several exhaust pipes symmetrically fixed in the inner box and connected at one end to the upper end of the cooling chamber, several exhaust holes equally spaced on the several exhaust pipes, several heat dissipation slots opened on the outer box, and several guide shields fixed on the outer wall of the outer box and covering the several heat dissipation slots;

[0011] The heat-absorbing ends of both refrigerators extend into the lower end of the cooling chamber;

[0012] The inverter is electrically connected to the solar panel, the power supply is electrically connected to the inverter, and both coolers and the airflow fan are electrically connected to the power supply.

[0013] Furthermore, the temperature control unit also includes a circulation frame fixed in the inner box, two air guide pipes symmetrically fixed in the inner box and connected at both ends to the circulation frame and the lower end of the cooling chamber respectively, a material placement frame for placing ice packs, and several vent holes symmetrically opened on both sides of the material placement frame.

[0014] A sealing ring is provided between the outer casing and the outer casing cover.

[0015] Furthermore, the adjustment unit includes a bracket fixed to the front surface of the outer casing, an assembly frame hinged to the upper end of the bracket, a support frame hinged to the lower end of the bracket, symmetrically opened slide grooves on both sides of the assembly frame, and two sliders symmetrically fixed to the other end of the support frame and corresponding to the two slide grooves respectively.

[0016] The solar panel is fixed on the assembly frame.

[0017] Furthermore, the adjustment part also includes two positioning bolts that are symmetrically threaded to both ends of the support frame, and two positioning grooves that are symmetrically opened on the other end of the support frame and correspond to the two positioning bolts respectively.

[0018] Furthermore, the docking part includes two bearing seats symmetrically fixed to the lower surface of the outer casing, docking slots symmetrically opened on the upper surface of the outer casing and corresponding to the two bearing seats, several limiting brackets fixed at the four corners of the upper end of the outer casing, two docking plates symmetrically hinged to the upper end of the outer casing, two docking blocks symmetrically at the lower end of the outer casing, two slots respectively opened on the two docking plates and corresponding to the two docking blocks, strong magnetic blocks respectively fixed on the two docking plates and magnetically connected to the outer casing cover;

[0019] Both of the aforementioned support seats are provided with forklift insertion holes.

[0020] Furthermore, the sealing part includes a sealing airbag fixed to the bottom of the inner box cover, one end of which is connected to the sealing airbag, and the other end of which passes through the air supply pipe between the inner box cover and the outer box cover.

[0021] A valve is installed on the gas supply pipe.

[0022] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0023] 1. This solar-powered constant temperature logistics box provides a continuous and stable power supply to the temperature control unit through the solar panel, which solves the problems of short battery life and reliance on external charging of traditional constant temperature logistics boxes. Under the control of the adjustment unit, the angle of the solar panel can be infinitely adjusted as needed. It can be unfolded when in use to maximize the use of solar energy and significantly improve the photoelectric conversion efficiency. When not in use, the solar panel can be stored to reduce the overall space occupied and facilitate the stacking and transportation of empty boxes.

[0024] 2. This solar-powered constant-temperature logistics box, through its temperature control unit, uses two coolers in conjunction with two guide fans to evenly spray cold air into the inner box through several exhaust holes on several exhaust pipes, achieving forced circulation of cold air. A material rack placed in the cold source can be inserted and removed within the circulation frame, and transported to the cooling chamber via two air guide pipes for natural circulation and convection. This provides long-term emergency insulation in case of energy saving or cooler failure, effectively improving the reliability of the constant-temperature material box. Active and passive cooling can be used individually or in combination to flexibly adapt to different insulation durations and ambient temperature requirements, making it highly practical.

[0025] 3. When stacking the solar-powered temperature-controlled logistics box, the two support seats on the upper outer box or the two docking slots on the lower outer box cover cooperate to achieve precise positioning and load-bearing. With the help of several limit brackets, the horizontal displacement of the upper outer box is effectively restricted. At the same time, the vertical movement of the upper outer box is restricted by the engagement of two docking plates and docking blocks. Thus, multiple boxes can be firmly connected into a whole, stacked stably, which greatly ensures transportation safety. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 A perspective view of the present invention is shown;

[0028] Figure 2 A stacked diagram of the present invention is shown;

[0029] Figure 3 This invention demonstrates a partially disassembled three-dimensional representation. Figure 1 ;

[0030] Figure 4 This invention demonstrates a partially disassembled three-dimensional representation. Figure 2 ;

[0031] Figure 5 This invention provides a partially cross-sectional perspective view. Figure 1 ;

[0032] Figure 6 This invention provides a partially cross-sectional perspective view. Figure 2 ;

[0033] Figure 7 This utility model is shown Figure 2 Enlarged view of point A;

[0034] Figure 8 This utility model is shown Figure 4 Enlarged view of point B.

[0035] In the picture

[0036] 1. Outer casing; 2. Outer casing cover; 3. Inner casing; 4. Inner casing cover; 5. Control box; 6. Solar panel; 7. Temperature control section; 8. Connecting section; 9. Sealing section; 10. Cooling chamber; 11. Control chamber; 12. Inverter; 13. Power supply; 14. Refrigerator; 15. Partition; 16. Guide fan; 17. Exhaust pipe; 18. Exhaust port; 19. Heat dissipation groove; 20. Radiator; 21. Circulation frame; 22. Air duct; 2 3. Material placement frame; 24. Vent hole; 25. Bracket; 26. Sealing ring; 27. Assembly frame; 28. Bearing frame; 29. ​​Slide rail; 30. Sliding block; 31. Positioning bolt; 32. Positioning groove; 33. Bearing seat; 34. Docking groove; 35. Limiting frame; 36. Docking plate; 37. Docking block; 38. Slot; 39. Forklift insertion hole; 40. Sealing airbag; 41. Air supply pipe; 42. Adjustment part; 43. Strong magnetic block. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0038] like Figure 1-8 As shown, a solar-powered constant temperature logistics box includes: an outer box body 1, an outer box cover 2 connected to the upper end of the outer box body 1 by a latch, an inner box body 3 disposed inside the outer box body 1, an inner box cover 4 adapted to the inner box body 3 fixed to the bottom of the outer box cover 2, and a control box 5 disposed between the outer box body 1 and the inner box body 3.

[0039] Adjustment part 42, the adjustment part 42 is fixed to the front surface of the outer casing 1, the solar panel 6 is fixed on the adjustment part 42, and the adjustment part 42 is used to control the angle of the solar panel 6;

[0040] Temperature regulating unit 7 is disposed within the control box 5 and the inner box 3, and is used to regulate the temperature inside the inner box 3.

[0041] The docking part 8 is fixed on the outer box 1 and the outer box cover 2, and is used for the stable stacking of two adjacent outer boxes 1 in the vertical direction.

[0042] A closing part 9 is installed on the outer box cover 2 and the inner box cover 4 to restrict the movement of goods in the inner box 3;

[0043] In use, the solar panel 6 absorbs sunlight and converts the light energy into DC power, which is then stored in the power supply 13 within the temperature control unit 7 by the inverter 12. The solar panel 6 can be adjusted by the adjustment unit 42 according to the season, time, and geographical location to ensure that it always faces the sun at the optimal angle, maximizing energy capture efficiency. When needed, the solar panel 6 can be stored to avoid affecting the horizontal stacking and transportation of the material box. When goods are placed in the inner box 3, the inner box cover 4 and the outer box cover 2 are used to separate the inner box 3 from the outer box 3. When the container 1 is closed, the sealing section 9 operates, and the air supply pipe 41 inflates the sealing airbag 40. After the sealing airbag 40 expands, it presses downward, adaptively filling all the gaps between the goods and firmly fixing them to prevent collisions and damage during transportation. The inner container 3 and the inner lid 4 are made of heat-insulating material to reduce the impact of the external ambient temperature on the goods inside the inner container 3. Afterward, the temperature control section 7 operates, and the power supply 13 supplies power to the two coolers 14 and the guide fan 16. The heat-absorbing end of the cooler 14 absorbs heat intensely in the cooling chamber 10, reducing the internal air temperature. The two guide fans... Fan 16 blows cold air into exhaust pipe 17, and through several exhaust holes 18, it evenly distributes the air to all corners of the inner chamber 3, achieving forced circulation cooling. The heat generated by the two coolers 14 is discharged from the other side through heat dissipation groove 19 and air guide shroud 20. When power is insufficient or only light insulation is needed, ice packs or other cold sources can be placed in the storage box 23. The cold air released by the cold source enters the circulation box 21 through the vent 24, enters the cooling chamber 10 through the air guide pipe 22, and then enters the inner chamber 3, forming natural convection and providing long-term emergency insulation. At this time, the two coolers can be turned off. 14. It greatly saves energy and allows the refrigerator 14 to work simultaneously with the cold source, achieving rapid cooling inside the inner box 3 and flexibly adapting to different insulation durations and ambient temperature requirements. During transportation, multiple boxes are stably stacked through the docking part 8. The bearing seat 33 of the upper outer box 1 is embedded into the docking groove 34 on the lower outer box cover 2 for positioning and load bearing. Then, by rotating the two docking plates 36, they are locked to the two docking blocks 37 respectively, and reinforced by the strong magnetic block 43, forming a stable whole. It saves space and is safe, with stable stacking, greatly ensuring transportation safety.

[0044] Optionally, the temperature control unit 7 includes a cooling chamber 10 and a control chamber 11 disposed in the control box 5, an inverter 12, a power supply 13 and two coolers 14 installed in the control chamber 11, a partition 15 fixed in the middle of the cooling chamber 10, two guide fans 16 symmetrically installed on the partition 15, a plurality of exhaust pipes 17 symmetrically fixed in the inner box 3 and connected at one end to the upper end of the cooling chamber 10, a plurality of exhaust holes 18 equally spaced on the plurality of exhaust pipes 17, a plurality of heat dissipation slots 19 opened on the outer box 1, and a plurality of guide shields 20 fixed on the outer wall of the outer box 1 and covering the plurality of heat dissipation slots 19.

[0045] The heat-absorbing ends of both coolers 14 extend into the lower end of the cooling chamber 10;

[0046] The inverter 12 is electrically connected to the solar panel 6, the power supply 13 is electrically connected to the inverter 12, and the two coolers 14 and the flow fan 16 are all electrically connected to the power supply 13.

[0047] In use, the heat-absorbing ends of the two coolers 14 work inside the cooling chamber 10, absorbing heat and reducing the air temperature inside the cooling chamber 10. The two guide fans 16 blow the cold air inside the cooling chamber 10, which is then transported to various corners of the inner box 3 through the exhaust pipe 17 and evenly discharged through several exhaust holes 18, avoiding local overcooling or overheating inside the box and ensuring the uniformity of the internal space temperature, thus achieving effective cooling inside the inner box 3. The heat generated by the two coolers 14 is discharged outside the box through several heat dissipation slots 19. Several guide shrouds 20 can not only prevent dust and water, but also guide the direction of hot air flow and enhance heat dissipation efficiency. The electricity generated by the solar panel 6 is converted by the inverter 12, stored in the power supply 13, and supplies power to the two coolers 14 and the guide fans 16.

[0048] Optionally, the temperature control unit 7 further includes a circulation frame 21 fixed inside the inner box 3, two air guide pipes 22 symmetrically fixed inside the inner box 3 and connected at both ends to the circulation frame 21 and the lower end of the cooling chamber 10 respectively, a material placement frame 23 for placing ice packs and a plurality of ventilation holes 24 symmetrically opened on both sides of the material placement frame 23.

[0049] A sealing ring 26 is provided between the outer casing 1 and the outer casing cover 2;

[0050] While storing goods, ice packs, dry ice, and other cold sources are placed in the storage frame 23. The cold air generated by the cold sources sinks, and with the operation of two guide fans 16, the cold air enters the circulation frame 21 through several vents 24, then enters the cooling chamber 10 through two air guide pipes 22, and is then discharged through several exhaust pipes 17, forming a convection circulation that continuously cools the inner box 3. The sealing ring 26 ensures the airtightness of the inner box 3 after it is closed, greatly reducing the loss of cold energy and extending the passive cooling time. This is especially beneficial when solar energy is insufficient, power supply 13 is exhausted, or the refrigeration unit is out of service. In the event of a malfunction of 14, the cold source can serve as an emergency solution to ensure that the goods remain in a low-temperature environment for a certain period of time, thereby improving the overall reliability and safety. When precise temperature control is not required or during short-distance transportation, ice packs can be used for cooling, saving energy and producing no noise. Furthermore, the cold source can be used in conjunction with the refrigeration unit 14 to achieve rapid cooling within the inner casing 3. Since the cold source is placed in the material placement frame 23, which slides into the circulation frame 21, the material placement frame 23 can be quickly removed from the circulation frame 21 for rapid addition or replacement of the cold source.

[0051] Optionally, the adjustment part 42 includes a bracket 25 fixed to the front surface of the outer casing 1, an assembly frame 27 hinged to the upper end of the bracket 25, a support frame 28 hinged to the lower end of the bracket 25, slide grooves 29 symmetrically opened on both sides of the assembly frame 27, and two sliders 30 symmetrically fixed to the other end of the support frame 28 and corresponding to the two slide grooves 29 respectively.

[0052] The solar panel 6 is fixed on the assembly frame 27;

[0053] The bracket 25 is fixed to the front surface of the outer casing 1, serving as the support point for the entire adjustment section 42. When the angle of the solar panel 6 needs to be adjusted, the assembly frame 27 can be pushed or lifted by hand. The two sliders 30 at the other end of the support frame 28 will move in the two slide grooves 29 respectively to cooperate with the subsequent locking support, thereby enabling the rapid unfolding and storage of the solar panel 6. It is convenient to quickly adjust the angle of the solar panel 6 to adapt to the placement ring of the logistics box as needed, effectively improving the environmental adaptability of the entire logistics box. When simply transporting the logistics box, the solar panel 6 can be stored to reduce the space occupied, realizing the effective stacking and transportation of the logistics box.

[0054] Optionally, the adjustment part 42 further includes two positioning bolts 31 that are symmetrically threaded to both ends of the support frame 28, and two positioning grooves 32 that are symmetrically opened on the other end of the support frame 28 and correspond to the two positioning bolts 31 respectively.

[0055] After the solar panel 6 is fully unfolded, rotate the two positioning bolts 31 to insert them into the two positioning slots 32, thereby locking the position of the support frame 28 and ensuring the unfolded state of the solar panel 6 so that it can effectively receive sunlight. When it is necessary to adjust the unfolding angle of the solar panel 6 according to the storage space of the logistics box, the positioning bolts 31 can be rotated to make them abut against the assembly frame 27 to restrict the movement of the support frame 28, so as to achieve stepless adjustment of the logistics box. It can be locked at any angle, thereby achieving the most precise angle adjustment and making it highly practical.

[0056] Optionally, the docking part 8 includes two bearing seats 33 symmetrically fixed to the lower surface of the outer casing 1, docking grooves 34 symmetrically opened on the upper surface of the outer casing cover 2 and corresponding to the two bearing seats 33, several limiting brackets 35 fixed to the four corners of the upper end of the outer casing 1, two docking plates 36 symmetrically hinged to the upper end of the outer casing 1, two docking blocks 37 symmetrically at the lower end of the outer casing 1, two slots 38 respectively opened on the two docking plates 36 and corresponding to the two docking blocks 37, two strong magnetic blocks 43 respectively fixed on the two docking plates 36 and magnetically connected to the outer casing cover 2;

[0057] Both of the aforementioned support seats 33 are provided with forklift insertion holes 39;

[0058] When the logistics boxes are stacked, the two support seats 33 of the upper outer box 1 will respectively embed into the two docking slots 34 on the lower outer box cover 2, realizing the initial positioning of the upper outer box 1 and the vertical support. At this time, several limiting brackets 35 abut against the four corners of the lower end of the upper outer box 1, thereby further restricting the horizontal movement of the upper outer box 1. At the same time, the two docking plates 36 on the lower outer box 1 can be rotated, so that the two docking blocks 37 on the upper outer box 1 are respectively inserted into the slots 38 on the two docking plates 36, thereby effectively restricting the upper outer box 1. The vertical movement of the outer box 1 and the strong magnetic blocks 43 on the two docking plates 36 are attracted to the lower outer box cover 2, preventing the docking plates 36 from accidentally loosening due to vibration. When it is necessary to remove the upper outer box 1, simply rotate the docking plates 36 to quickly unlock it, improving the efficiency of loading and unloading operations. Under multiple restrictions, the stacked logistics boxes become a whole, greatly enhancing the stability and safety during transportation and avoiding the risk of collapse. In addition, the design of the forklift sockets 39 on the two bearing seats 33 is compatible with standard logistics equipment, making it convenient to handle with forklifts.

[0059] Optionally, the sealing part 9 includes a sealing airbag 40 fixed to the bottom of the inner box cover 4, one end of which is connected to the sealing airbag 40, and the other end of which passes through the air supply pipe 41 between the inner box cover 4 and the outer box cover 2.

[0060] A valve is installed on the air supply pipe 41. When the goods are stored and the inner box cover 4 and the outer box cover 2 are closed, air is supplied to the sealing airbag 40 through the air supply pipe 41 via an external air source. The sealing airbag 40 expands and presses downward to fill the gap between the goods and the inner box cover 4, thereby effectively securing the goods. During transportation, the sealing airbag 40 can absorb some of the impact and vibration energy, providing cushioning protection for fragile goods. When it is necessary to retrieve the goods, closing the valve can quickly deflate the sealing airbag 40, release the fixation of the goods, and quickly retrieve and place the goods.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A solar-powered constant-temperature logistics box, characterized in that, include: An outer casing (1) is provided, with an outer casing cover (2) connected to the upper end of the outer casing (1) by a latch. An inner casing (3) is provided inside the outer casing (1). An inner casing cover (4) that is compatible with the inner casing (3) is fixed to the bottom of the outer casing cover (2). A control box (5) is provided between the outer casing (1) and the inner casing (3). Adjustment part (42), the adjustment part (42) is fixed on the front surface of the outer casing (1), the solar panel (6) is fixed on the adjustment part (42), and the adjustment part (42) is used to control the angle of the solar panel (6); Temperature regulating unit (7) is disposed in the control box (5) and the inner box (3) for regulating the temperature inside the inner box (3); The docking part (8) is fixed on the outer box (1) and the outer box cover (2) for stable stacking of two adjacent outer boxes (1) in the vertical direction; A closure (9) is installed on the outer box cover (2) and the inner box cover (4) to restrict the movement of goods in the inner box (3).

2. The solar-powered constant-temperature logistics box as described in claim 1, characterized in that, The temperature control unit (7) includes a cooling chamber (10) and a control chamber (11) disposed in the control box (5), an inverter (12), a power supply (13) and two coolers (14) installed in the control chamber (11), a partition (15) fixed in the middle of the cooling chamber (10), two guide fans (16) symmetrically installed on the partition (15), a plurality of exhaust pipes (17) symmetrically fixed in the inner box (3) and connected at one end to the upper end of the cooling chamber (10), a plurality of exhaust holes (18) equally spaced on the plurality of exhaust pipes (17), a plurality of heat dissipation slots (19) opened on the outer box (1), and a plurality of guide shields (20) fixed on the outer wall of the outer box (1) and covering the plurality of heat dissipation slots (19). The heat-absorbing ends of both of the coolers (14) extend into the lower end of the cooling chamber (10); The inverter (12) is electrically connected to the solar panel (6), the power supply (13) is electrically connected to the inverter (12), and the two coolers (14) and the flow fan (16) are all electrically connected to the power supply (13).

3. A solar-powered constant-temperature logistics box as described in claim 2, characterized in that, The temperature control unit (7) also includes a circulation frame (21) fixed in the inner box (3), two air guide pipes (22) symmetrically fixed in the inner box (3) and connected at both ends to the circulation frame (21) and the lower end of the cooling chamber (10), a material placement frame (23) for placing ice packs, and several ventilation holes (24) symmetrically opened on both sides of the material placement frame (23). A sealing ring (26) is provided between the outer casing (1) and the outer casing cover (2).

4. A solar-powered constant-temperature logistics box as described in claim 3, characterized in that, The adjustment part (42) includes a bracket (25) fixed to the front surface of the outer casing (1), an assembly frame (27) hinged to the upper end of the bracket (25), a support frame (28) hinged to the lower end of the bracket (25), slide grooves (29) symmetrically opened on both sides of the assembly frame (27), and two sliders (30) symmetrically fixed to the other end of the support frame (28) and corresponding to the two slide grooves (29) respectively. The solar panel (6) is fixed on the assembly frame (27).

5. A solar-powered constant-temperature logistics box as described in claim 4, characterized in that, The adjustment part (42) also includes two positioning bolts (31) that are symmetrically threaded to both ends of the support frame (28), and two positioning grooves (32) that are symmetrically opened on the other end of the support frame (28) and correspond to the two positioning bolts (31) respectively.

6. A solar-powered constant-temperature logistics box as described in claim 1, characterized in that, The docking part (8) includes two bearing seats (33) symmetrically fixed on the lower surface of the outer box (1), docking grooves (34) symmetrically opened on the upper surface of the outer box cover (2) and corresponding to the two bearing seats (33), several limiting frames (35) fixed at the four corners of the upper end of the outer box (1), two docking plates (36) symmetrically hinged to the upper end of the outer box (1), two docking blocks (37) symmetrically at the lower end of the outer box (1), two slots (38) respectively opened on the two docking plates (36) and corresponding to the two docking blocks (37), two strong magnetic blocks (43) respectively fixed on the two docking plates (36) and magnetically connected to the outer box cover (2); Both of the bearing seats (33) are provided with forklift insertion holes (39).

7. A solar-powered constant-temperature logistics box as described in claim 6, characterized in that, The sealing part (9) includes a sealing airbag (40) fixed at the bottom of the inner box cover (4), one end of which is connected to the sealing airbag (40), and the other end of which passes through the air supply pipe (41) between the inner box cover (4) and the outer box cover (2). A valve is installed on the gas supply pipe (41).

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