Combined cold-chain logistics cold insulation box

Abstract

The invention belongs to the related technical field of cold-chain transport boxes, and particularly discloses a combined cold-chain logistics cold insulation box which comprises a box body and a sealing heat preservation door, a photovoltaic module is arranged on the upper end face of the box body, a sliding frame is connected to the bottom of the inner side of the box body through an arranged sliding assembly, and multiple sets of vent grooves are formed in the two sides of the interior of the sliding frame. A refrigeration fan is fixedly clamped to the upper portion of one side of the interior of the box body, a telescopic pipe is installed on the lower portion of the interior of the refrigeration fan in a communicating mode, a moving block is connected to the rear end of the interior of the box body through an arranged lifting assembly, a U-shaped cooling pipe is installed at the front end of the interior of the moving block in a penetrating mode, and the interior of the U-shaped cooling pipe is communicated with the interior of the telescopic pipe. According to the leafy vegetable fresh-keeping device, the problem of deviation and collision of the sliding frame is solved through the sliding assembly and the limiting piece, cold air distribution is optimized through the liftable U-shaped cooling pipe and the airflow adjusting piece, the transportation loss rate of leafy vegetables is effectively reduced, and the fresh-keeping period is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cold chain transport boxes, and specifically discloses a combined cold chain logistics cold insulation box. BACKGROUND

[0002] In the field of vegetable cold chain logistics, leafy vegetables and tender stem vegetables (such as spinach, lettuce and lettuce) have high water content and fragile cell walls, and have extremely strict requirements on the cold insulation environment in terms of "uniform temperature, prevention of damage caused by touching, and prevention of direct airflow blowing". However, in actual application, the existing vegetable cold chain cold insulation box still has two core technical pain points, resulting in high loss rate of vegetables after transportation, which seriously restricts the economy of cold chain logistics and the quality of vegetable preservation; Firstly, vehicle jolting during transportation easily causes the filter frame to slide and deviate, causing the vegetables in the frame to collide and be pressed against the inner wall and side wall of the ice box, especially the leaves of leafy vegetables, which are fragile, and are prone to damage and juice leakage after collision. The leaked juice can further increase the adhesion of the leaves to the inner wall of the box, which is difficult to clean and can easily breed bacteria, causing cross contamination and further affecting the safety of the vegetables. Secondly, the direction of the cooling airflow is fixed, which easily causes direct blowing or local low-temperature accumulation of the vegetables. The existing cold insulation box has a fixed installation of the cold air pipe, and the direction of the airflow output cannot be adjusted. If the cold air pipe is directly opposite the vegetable area, the cooling airflow will directly blow against the surface of the leaves. On the one hand, it accelerates the evaporation of the moisture in the leaves, causing the leaves to shrink and the edges to be scorched. On the other hand, the low temperature carried by the airflow will form a local low-temperature area in the blowing area, which will break the ice point of the vegetables and cause the cells of the leaves to freeze and rupture, resulting in soft and rotten freeze spots after thawing. If the cold air pipe is far away from the vegetable area, it will also cause uneven temperature distribution in the box, and the temperature at the bottom of the stacked vegetables will rise due to insufficient cooling, accelerating the respiration and aging speed and shortening the preservation period.

[0003] Therefore, a combined cold chain logistics cold insulation box is proposed to solve the above problems. SUMMARY

[0004] The application aims to solve the problems in the background art and provides a combined cold chain logistics cold insulation box, which comprises a box body and a sealed heat preservation door. The box body is provided with a photovoltaic module on the upper end face. The box body is connected with a sliding frame through a sliding assembly arranged on the inner bottom side. A plurality of groups of air vents are formed in the inner sides of the sliding frame. A refrigeration fan is fixedly clamped on the upper side of the inner side of the box body. An extension pipe is installed in communication with the inside of the refrigeration fan. A moving block is connected to the rear end of the inside of the box body through a lifting assembly. A U-shaped cooling pipe is installed in penetration of the front end of the inside of the moving block. The U-shaped cooling pipe is in communication with the inside of the extension pipe. The U-shaped cooling pipe is wrapped outside the sliding frame, and air flow adjusting members are arranged on the inside of both sides of the U-shaped cooling pipe.

[0005] Further, the photovoltaic assembly comprises a photovoltaic panel fixedly installed on the upper end face of the box body, and an inverter conversion device is fixedly installed on one side of the inside of the box body and above the refrigeration fan.

[0006] Further, the sliding assembly comprises rails fixedly installed on the two ends of the bottom of the inside of the box body, and sliding shells are fixedly installed on the positions corresponding to the rails at the bottom of the sliding frame.

[0007] Further, the limiting piece comprises a clamping sleeve fixedly installed on the front end of the sliding shell, a clamping block is slidingly installed in the clamping sleeve, a limiting rod is fixedly installed on the bottom of the clamping block, and a limiting hole is formed in the upper surface of one end of the rail and is adapted for the sliding insertion of the limiting rod.

[0008] Further, positioning blocks are fixedly installed on the upper surfaces of the two sides of the rear end of the sliding frame, sliding holes are formed in the positioning blocks, a fixing rod is fixedly installed on one side of the rear end of the box body and at the side of the positioning block, a snap ring is fixedly sleeved on the front end of the fixing rod, a temperature detection head is fixedly installed on one side of the inside of the box body and away from the refrigeration fan, a temperature monitoring device is electrically connected to one side of the temperature detection head, and the temperature monitoring device is fixedly installed on the outer wall of one side of the box body.

[0009] Further, the lifting assembly comprises a screw rod rotatably installed at the rear end of the inside of the box body, a moving block is threadedly connected to the outside of the screw rod, one side of the moving block is slidingly attached to the inner wall of the rear end of the box body, a motor is fixedly installed on the upper end of the screw rod, a shell is fixedly sleeved on the outside of the motor, and the shell is fixedly installed on the upper end face of the box body and at one side of the photovoltaic panel.

[0010] Further, the airflow adjusting piece comprises a plurality of nozzles fixedly sleeved in the U-shaped cooling pipe, clamping blocks are fixedly installed on the two sides of one end of the U-shaped cooling pipe, and a baffle is fixedly installed on the upper end faces of one side of the two groups of clamping blocks.

[0011] Further, a rotary shell is fixedly installed on the upper end face of the sliding frame, a rotary groove is formed in the inside of the rotary shell, a sliding block is slidingly installed in the inside of the rotary groove, a clamping shell is connected to one side of the sliding block away from the rotary groove through symmetrically installed spring rods, a clamping rod is fixedly inserted into the inside of the upper part of the clamping shell, a handle is fixedly sleeved on the outside of the upper part of the clamping rod, a resisting rod is clamped in the inside of the lower part of the clamping rod, and a scraper is fixedly installed on one side of the outside of the resisting rod.

[0012] Compared with the prior art, the present application has the following advantages: 1、Through setting the sliding assembly and the limiting piece on the bottom of the box body, the problem of collision and damage of vegetables caused by the sliding deviation of the sliding frame during transportation can be effectively solved. The sliding frame is connected with the box body through the bottom sliding shell and the track sliding connection, and when loading and unloading vegetables, the sliding frame can be smoothly pushed and pulled along the track to avoid direct friction with the inner wall of the box body. At the same time, the limiting piece at the front end of the sliding shell can be inserted into the limiting hole of the track through the limiting rod to fix the sliding frame at the preset position, so that the sliding frame will not deviate when the vehicle bumps, and the collision and extrusion of the vegetables with the box wall and the inner wall of the sliding frame are reduced, the damage rate and the juice leakage of leafy vegetables are reduced, and the bacterial breeding and cross contamination caused by the juice adhesion of the leaves are avoided, thereby ensuring the safety of vegetable transportation.

[0013] 2、Through the design of the liftable U-shaped cooling pipe and the airflow adjusting piece, the direction and coverage range of the cooling airflow can be flexibly adjusted to avoid direct blowing of the airflow on the vegetables or the formation of local low-temperature accumulation. The lifting assembly drives the U-shaped cooling pipe to move up and down along the rear end of the box body, and the position of the cooling pipe can be adjusted according to the stacking height of the vegetables, so that the airflow can more evenly cover the vegetables in the sliding frame. The U-shaped cooling pipe is wrapped outside the sliding frame, and cooperates with the multiple nozzles and baffles inside to disperse the cold air delivered by the refrigeration fan, and the baffles can block the direct impact of the airflow on the surface of the vegetables. At the same time, the air grooves on both sides of the sliding frame can guide the airflow to circulate in the frame, which not only avoids the evaporation and dry shrinkage of the leaves caused by direct blowing, but also prevents the local temperature from being too low to break through the freezing point of the vegetables, solves the problem of uneven temperature distribution in the box, maintains the stable temperature environment required for vegetable preservation, and prolongs the preservation period.

[0014] 3、Through setting the rotary shell structure with scraper on the upper end face of the sliding frame, the leaves adhered to the inner wall of the sliding frame can be conveniently cleaned, and the subsequent cleaning difficulty and bacterial breeding risk are reduced. Holding the handle drives the clamping rod to slide along the rotary groove of the rotary shell, and when the sliding block moves in the rotary groove, the scraper can scrape off the adhered leaves by adhering to the inner wall of the sliding frame. The spring rod can provide elastic buffer for the scraper to avoid scratching the sliding frame with the scraper, ensure that the sliding frame remains clean for a long time, reduce the cross contamination caused by the residual leaves, and further ensure the quality of vegetable transportation.

[0015] 4、Through setting the photovoltaic assembly on the upper end face of the box body, clean energy can be provided for the refrigeration fan, motor and other equipment to improve the endurance and environmental protection of the cold storage box. After the photovoltaic cell panel absorbs solar energy, the direct current is converted into alternating current through the inverter conversion device to supply power to the electrical equipment in the box, reducing the dependence on external power supply, especially suitable for long-distance cold chain transportation scenes. At the same time, the cooperation of the temperature detection head and the temperature monitoring device can realize real-time monitoring of the temperature in the box, and the staff can master the temperature change in time, and adjust the position of the refrigeration fan or the U-shaped cooling pipe in time when the temperature is abnormal, so as to ensure that the vegetables are always in the safe cold preservation interval and improve the reliability of cold chain transportation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the present application; Figure 2 Another angle view of the whole connection structure of the present application; Figure 3 Connection structure of the inner part of the box of the present application; Figure 4 Another angle view of the connection structure of the inner part of the box of the present application; Figure 5 Connection structure between the sliding frame and the inner part of the box of the present application; Figure 6 Connection structure between the air flow adjusting part and the sliding frame of the present application; Figure 7 Connection structure between the air flow adjusting part and the lifting assembly of the present application; Figure 8 Connection structure between the rotating shell and the scraper of the present application; Figure 9 Connection structure between the rotating shell and the scraper of the present application; Figure 5 Enlarged connection structure of A of the present application; Figure 10 Enlarged connection structure of B of the present application. Figure 8 Enlarged connection structure of B of the present application.

[0017] In the figure: 1, box; 2, sealing and heat preserving door; 3, temperature monitoring device; 4, shell; 5, photovoltaic cell panel; 6, refrigeration fan; 7, inverter conversion device; 8, sliding frame; 9, jacket; 10, track; 11, clamping block; 12, rotating shell; 13, temperature probe; 14, air vent; 15, sliding shell; 16, clamping block; 17, screw rod; 18, moving block; 19, U-shaped cooling pipe; 20, nozzle; 21, stop rod; 22, rotating groove; 23, sliding hole; 24, positioning block; 25, fixed rod; 26, clamping ring; 27, scraper; 28, handle; 29, clamping shell; 30, spring rod; 31, sliding block; 32, clamping rod; 33, telescopic pipe; 34, limiting hole; 35, limiting rod; 36, baffle; 37, motor. DETAILED DESCRIPTION

[0018] In order to make the above objects, features and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0020] As Figures 1-10The illustrated combination cold chain logistics cold insulation box comprises a box body 1 and a sealed thermal insulation door 2, the upper end face of the box body 1 is provided with a photovoltaic module, the inside bottom of the box body 1 is connected with a sliding frame 8 through a sliding assembly, a plurality of groups of air vents 14 are formed in the inside of the sliding frame 8, a refrigeration fan 6 is fixedly clamped on the upper side of the inside of the box body 1, an extension pipe 33 is installed in the inside of the refrigeration fan 6, a moving block 18 is connected to the rear end of the inside of the box body 1 through a lifting assembly, a U-shaped cooling pipe 19 is installed through the front end of the inside of the moving block 18, the inside of the U-shaped cooling pipe 19 is connected with the extension pipe 33, the U-shaped cooling pipe 19 is wrapped outside the sliding frame 8, and airflow adjusting members are arranged on the inside of both sides of the U-shaped cooling pipe 19. The box body 1 and the sealed thermal insulation door 2 are both made of thermal insulation plates, and a foamed sealing strip can be additionally arranged at the joint of the sealed thermal insulation door 2 and the inner wall of the box body 1, so that the cooling airflow in the box body 1 will not leak when closed.

[0021] The photovoltaic module comprises a photovoltaic cell panel 5 fixedly installed on the upper end face of the box body 1, and an inverter conversion device 7 fixedly installed on the side of the inside of the box body 1 and above the refrigeration fan 6. The photovoltaic cell panel 5 converts solar energy into direct current, and then the inverter conversion device 7 converts the direct current into alternating current suitable for the electrical elements such as the refrigeration fan 6, so as to provide continuous power for the core electrical equipment of the box body 1. This structure breaks the single dependence of the traditional cold insulation box on external power supply, is especially suitable for long-distance cold chain transportation scenes, can reduce energy costs and improve the endurance of the box body 1 in the environment without external power supply, and meets the development needs of green logistics.

[0022] The sliding assembly comprises rails 10 installed on both ends of the inside bottom of the box body 1, and sliding shells 15 fixedly installed on the positions of the bottom of the sliding frame 8 corresponding to the rails 10 and in sliding connection with the rails 10, and limiting members are arranged on the outside of the front ends of the sliding shells 15 corresponding to the positions of the rails 10. Through the sliding cooperation of the rails 10 and the sliding shells 15, the sliding frame 8 can be stably moved in the box, the sliding frame 8 can be pushed and pulled when vegetables are loaded and unloaded, and the frictional damage of the sliding frame 8 to the box wall is reduced. Meanwhile, the limiting members on the front ends of the sliding shells 15 can preliminarily fix the positions of the sliding frame 8 after the sliding frame 8 is pushed back into the box, so as to avoid slight deviation of the sliding frame 8 in the initial transportation. This structure improves the convenience of loading and unloading vegetables, lays a foundation for the double fixation of the sliding frame 8, and reduces the collision damage of vegetables caused by the sliding of the sliding frame 8.

[0023] The limiting member comprises a clamping sleeve 9 fixedly installed on the outside of the front end of the sliding shell 15, a clamping block 11 slidingly installed in the inside of the clamping sleeve 9, a limiting rod 35 fixedly installed on the bottom of the clamping block 11, and a limiting hole 34 formed in the upper surface of one end of the rail 10 and suitable for sliding insertion of the limiting rod 35. The precise positioning of the sliding frame 8 is realized through the cooperation of the jacket 9, the clamping block 11, the limiting rod 35 and the limiting hole 34. When the vehicle bounces during transportation, the limiting rod 35 is inserted into the limiting hole 34 after the sliding frame 8 slides back into the box body 1, so that the sliding frame 8 can be firmly fixed to prevent the sliding frame 8 from deviating and causing the collision and extrusion of the vegetables with the box wall and the inner wall of the sliding frame 8, thereby reducing the damage rate and juice leakage of leafy vegetables, avoiding bacterial breeding caused by juice adhesion, and ensuring the safety of vegetable transportation. Specifically, when loading and unloading vegetables, the clamping block 11 is pulled upward to pull out the limiting rod 35 from the limiting hole 34, thereby releasing the fixation of the sliding frame 8, and then the sliding frame 8 can be pushed and pulled along the track 10.

[0024] The positioning block 24 is fixedly installed on the upper surface of both sides of the rear end of the sliding frame 8, and the sliding hole 23 is formed in the positioning block 24. The fixed rod 25 is fixedly installed at the rear end of the box body 1 and on one side of the positioning block 24. The clasp ring 26 is fixedly sleeved on the outer side of the front end of the fixed rod 25. The temperature detection head 13 is fixedly installed on the inner side of the box body 1 and away from the refrigeration fan 6. The temperature monitoring device 3 is electrically connected to one side of the temperature detection head 13 and is fixedly installed on the outer wall of one side of the box body 1. The preliminary positioning reference can be provided when the sliding frame 8 is pushed back into the box, ensuring that the sliding frame 8 can be accurately homed each time, and facilitating the fixation of the subsequent limiting member. After the box body 1 is started, the temperature monitoring device 3 is opened, and the temperature inside the box is collected in real time by the temperature detection head 13, and the signal is transmitted to the temperature monitoring device 3. The temperature change inside the box can be directly observed by the temperature monitoring device 3, and the cold-keeping parameters can be adjusted in time when the temperature is abnormal to avoid freezing injury or deterioration of the vegetables due to unsuitable temperature.

[0025] The lifting assembly includes a screw rod 17 rotatably installed at the rear end inside the box body 1. The moving block 18 is threadedly connected to the outer side of the screw rod 17, and the moving block 18 is slidably attached to the rear end inner wall of the box body 1. The motor 37 is fixedly installed on the upper end of the screw rod 17. The shell 4 is fixedly sleeved on the outer side of the motor 37 and is fixedly installed on the upper end surface of the box body 1 and on one side of the photovoltaic cell panel 5. According to the stacking height of the vegetables, the motor 37 is started, the motor 37 drives the screw rod 17 to rotate, the moving block 18 moves up and down along the screw rod 17, and the U-shaped cooling pipe 19 is adjusted to the target height to keep the newly entered vegetables cold. During transportation, the position of the U-shaped cooling pipe 19 can be flexibly changed to avoid direct blowing of cold air at the same position, and the remaining vegetables cannot be contacted, ensuring that the cold air can uniformly cover the vegetables of different heights, avoiding the situation that part of the vegetables cannot be contacted with the cold air or the cold air is excessively concentrated due to the fixed position of the airflow, further optimizing the temperature distribution in the box and improving the cold-keeping effect.

[0026] The airflow adjusting member includes a plurality of nozzles 20 fixedly clamped inside the U-shaped cooling pipe 19, and the two sides outside one end of the U-shaped cooling pipe 19 are fixedly installed with clamping blocks 16, and the upper end faces of the two groups of clamping blocks 16 are jointly installed with a baffle 36; The airflow output by the refrigeration fan 6 is sprayed in the box through the nozzles 20, and the baffle 36 can shield at the air outlet to block the cold air from directly blowing to the surface of the vegetables, reduce the moisture evaporation and scorching of the leaves caused by direct blowing, and guide the cold air to circulate along the inside of the ventilation groove 14 of the sliding frame 8 to ensure the preservation quality of the vegetables.

[0027] The upper end face of the sliding frame 8 is fixedly installed with a rotary shell 12, the rotary shell 12 is provided with a rotary groove 22 inside, the sliding block 31 is slidably installed inside the rotary groove 22, the clamping shell 29 is connected to the side away from the rotary groove 22 through the symmetrically installed spring rods 30, the clamping rod 32 is fixedly inserted inside the upper part of the clamping shell 29, the handle 28 is fixedly sleeved on the upper part of the outside of the clamping rod 32, the abutting rod 21 is clamped inside the lower part of the clamping rod 32, and the scraper 27 is fixedly installed on one side of the outside of the abutting rod 21; After the vegetables are unloaded, the handle 28 is held to slowly slide the clamping rod 32 along the rotary groove 22 of the rotary shell 12, so that the scraper 27 is ensured to be attached to the inner wall of the sliding frame 8 to scrape the adhered leaves; during the cleaning process, the spring rods 30 automatically adapt to the curvature of the inner wall of the sliding frame 8 to maintain the close contact between the scraper 27 and the wall surface.

[0028] It should be noted that the inner surface of the corner of the rotary groove 22 is designed with a circular arc transition, and the corner radius is longer than the width of the sliding block 31, so that the right angle, acute angle and corner are eliminated to block the sliding block 31.

[0029] Working principle: before the device is started, the vegetable loading and the fixing of the sliding frame 8 are completed, the leafy vegetables and tender stem vegetables to be transported are placed in the sliding frame 8, the sliding shell 15 at the bottom of the sliding frame 8 is pushed to slide along the track 10 at the bottom of the inner side of the box body 1 until the sliding hole 23 of the positioning block 24 at the rear end of the sliding frame 8 is sleeved with the fixed rod 25 at the rear end of the box body 1, and the clamping ring 26 outside the fixed rod 25 is attached to the positioning block 24, so that the position of the sliding frame 8 is preliminarily limited; then the clamping block 11 in the clamping sleeve 9 is pressed to drive the limiting rod 35 at the bottom of the clamping block 11 to be inserted into the limiting hole 34 on the upper surface of the track 10, so that the double fixing of the sliding frame 8 is completed to avoid the deviation of the sliding frame 8 caused by the transportation bumping and prevent the collision between the vegetables and the inner wall of the box body 1 and the inner wall of the sliding frame 8; When the device is running, the photovoltaic assembly first provides power for each electrical equipment, the photovoltaic cell panel 5 on the upper end face of the box body 1 absorbs solar energy, converts light energy into direct current, and then converts the direct current into alternating current through the inverter conversion device 7 in the box body 1 to supply power for the refrigeration fan 6, the motor 37 and other equipment, thereby reducing the dependence on external power supply and adapting to long-distance cold chain transportation scenarios; at the same time, the temperature probe 13 on the side away from the refrigeration fan 6 in the box body 1 monitors the temperature in the box in real time, and transmits the temperature signal to the temperature monitoring device 3 on the outer wall of the box body 1, so that the staff can intuitively master the temperature change in the box through the temperature monitoring device 3, and the cold-keeping parameters can be adjusted in time. The refrigeration and cold-keeping system is started synchronously, uniform temperature control can be realized, the refrigeration fan 6 is started, and the cold air generated by the refrigeration fan 6 is transported to the U-shaped cooling pipe 19 through the flexible pipe 33 connected below; according to the stacking height of the vegetables in the sliding frame 8, the motor 37 in the shell 4 is started, the motor 37 drives the screw rod 17 at the rear end in the box body 1 to rotate, the moving block 18 connected with the screw rod 17 is slid along the inner wall at the rear end of the box body 1, and then the U-shaped cooling pipe 19 at the front end of the moving block 18 is moved up and down, so that the U-shaped cooling pipe 19 is adjusted to a position matched with the stacking height of the vegetables, the U-shaped cooling pipe 19 is wrapped outside the sliding frame 8, the multiple nozzles 20 in the U-shaped cooling pipe 19 disperse and output the cold air, and meanwhile the baffle 36 on the clamping block 16 at one end of the U-shaped cooling pipe 19 blocks the cold air from directly impacting the surface of the vegetables, so that the cold air enters the sliding frame 8 through the air grooves 14 on the two sides of the sliding frame 8 and circulates, thereby avoiding local low-temperature accumulation or air flow direct blowing to cause damage to the leaves of the vegetables and maintaining a stable cold-keeping environment in the box. When it is necessary to clean the leaves of vegetables adhered to the inner wall of the sliding frame 8, the structure related to the rotary shell 12 is operated, the handle 28 at the upper end of the rotary shell 12 is held, the clamping rod 32 is moved along the rotary groove 22 in the rotary shell 12, the sliding block 31 outside the clamping rod 32 slides in the rotary groove 22 along with the clamping rod 32, the clamping shell 29 connected with the sliding block 31 through the spring rod 30 moves synchronously, the abutting rod 21 clamped below the clamping shell 29 drives the scraper 27 on one side to abut against the inner wall of the sliding frame 8, and the leaves of vegetables adhered to the inner wall are scraped off, so that the practicability of the device is improved, and finally the staff takes out the leaves of vegetables in the sliding frame 8, thereby ensuring the use of the sliding frame 8.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A combined cold-chain logistics cold-insulation tank, comprising a tank body (1) and a sealed thermal insulation door (2), characterized in that: The upper end face of the box (1) is provided with a photovoltaic module, the inside bottom of the box (1) is connected with a sliding frame (8) through a sliding assembly, a plurality of air vent grooves (14) are formed in the inside of the sliding frame (8), a refrigeration fan (6) is fixedly clamped on the upper side of the inside of the box (1), a telescopic pipe (33) is installed in the inside of the refrigeration fan (6), a moving block (18) is connected to the rear end of the inside of the box (1) through a lifting assembly, a U-shaped cooling pipe (19) is installed through the front end of the inside of the moving block (18), the inside of the U-shaped cooling pipe (19) is connected with the telescopic pipe (33), the U-shaped cooling pipe (19) is wrapped outside the sliding frame (8), and airflow adjusting members are arranged on the inside of the U-shaped cooling pipe (19).

2. The combined cold-chain logistics cold insulation tank according to claim 1, characterized in that: The photovoltaic module comprises a photovoltaic cell panel (5) fixedly installed on the upper end face of the box (1), and an inverter conversion device (7) is fixedly installed on the side of the inside of the box (1) and located above the refrigeration fan (6).

3. The combined cold-chain logistics cold room according to claim 1, characterized in that: The sliding assembly comprises rails (10) installed on both ends of the inside bottom of the box (1), and slide shells (15) are fixedly installed on the positions corresponding to the rails (10) on the bottom of the sliding frame (8), the slide shells (15) are slidably connected with the rails (10), and limit members are arranged on the outside of the front end of the slide shells (15) and correspond to the rails (10).

4. The combined cold-chain logistics cold insulation tank according to claim 3, characterized in that: The limit members comprise clamping sleeves (9) fixedly installed on the outside of the front end of the slide shells (15), clamping blocks (11) are slidably installed in the inside of the clamping sleeves (9), limit rods (35) are fixedly installed on the bottom of the clamping blocks (11), and limit holes (34) are formed in the upper surface of one end of the rails (10) and are adapted to slide and penetrate the limit rods (35).

5. The combined cold-chain logistics cold room according to claim 1, characterized in that: The rear end of the sliding frame (8) is fixedly installed with positioning blocks (24) on the upper surfaces of both sides, the inside of the positioning blocks (24) is provided with slide holes (23), a fixed rod (25) is fixedly installed on the side of the rear end of the box (1) and located on one side of the positioning block (24), a clamping ring (26) is fixedly sleeved on the outside of the front end of the fixed rod (25), a temperature detection head (13) is fixedly installed on the side of the inside of the box (1) and away from the refrigeration fan (6), one side of the temperature detection head (13) is electrically connected with a temperature monitoring device (3), and the temperature monitoring device (3) is fixedly installed on the side of the outer wall of the box (1).

6. The combined cold-chain logistics cold room according to claim 1, characterized in that: The lifting assembly comprises a screw rod (17) rotatably installed on the rear end of the inside of the box (1), the outside of the screw rod (17) is threadedly connected with a moving block (18), one side of the moving block (18) is slidably attached to the rear end inner wall of the box (1), a motor (37) is fixedly installed on the upper end of the screw rod (17), a housing (4) is fixedly sleeved on the outside of the motor (37), and the housing (4) is fixedly installed on the upper end face of the box (1) and located on one side of the photovoltaic cell panel (5).

7. The combined cold-chain logistics cold room according to claim 1, characterized in that: The airflow adjusting members comprise a plurality of nozzles (20) fixedly clamped in the inside of the U-shaped cooling pipe (19), clamping blocks (16) are fixedly installed on the outside of one end of the U-shaped cooling pipe (19) and on both sides, respectively, and a baffle (36) is jointly installed on the upper end face of one side of the two groups of clamping blocks (16).

8. The combined cold-chain logistics cold room according to claim 1, characterized in that: The upper end surface of the sliding frame (8) is fixedly provided with a rotary shell (12), the rotary shell (12) is internally provided with a rotary groove (22), the sliding block (31) is slidably arranged in the rotary groove (22), the sliding block (31) is connected with a clamping shell (29) through the symmetrically arranged spring rods (30) on the side away from the rotary groove (22), the clamping shell (29) is internally and upwardly fixedly provided with a clamping rod (32), the clamping rod (32) is externally and upwardly fixedly sleeved with a handle (28), the clamping rod (32) is internally and downwardly clamped with an abutting rod (21), and the abutting rod (21) is externally and on one side fixedly provided with a scraper (27).

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