Cold-chain storage and transportation of bird's nest

Abstract

The present application relates to the technical field of transportation devices, in particular to a constant-temperature carriage for cold-chain storage and transportation of bird's nest, which is used to solve the problem of poor distribution of cold sources in the existing cold-chain transportation carriage for bird's nest; the carriage comprises a bearing mechanism, a refrigeration mechanism and a stacking mechanism; the bearing mechanism comprises a transportation box, the refrigeration mechanism is installed in the transportation box, and the stacking mechanism comprises a stand column, a plurality of trays are inserted into the stand column, and the plurality of trays are vertically stacked along the stand column; the stacking mechanism can slide in the transportation box, and when the stacking mechanism slides in the transportation box, the distance between two adjacent trays increases with the increase of the sliding distance of the stacking mechanism in the transportation box; the carriage is linked and adjusted by the sliding of the stacking mechanism and the distance between the trays, without the need for additional electric control equipment, so that different temperature and humidity environments can be naturally formed in the same carriage, which is suitable for the storage and transportation requirements of dry products, semi-finished products, fresh stewed products and other multi-category bird's nests, the whole tray slides and is loaded and unloaded, the operation efficiency is greatly improved, and the loss of cold quantity caused by opening the door is reduced.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, specifically to a temperature-controlled vehicle for the cold chain storage and transportation of bird's nest. Background Technology

[0002] As a high-value-added tonic, bird's nest includes dried bird's nest, semi-finished bird's nest soaked in water, and freshly stewed ready-to-eat bird's nest. Different types of bird's nest have significantly different requirements for the temperature and humidity of the storage and transportation environment: dried bird's nest needs to be maintained in a low temperature and low humidity environment of 10-15℃ to avoid mold, insect infestation and deterioration; semi-finished bird's nest soaked in water needs to be kept stable in a medium temperature and constant humidity range of 5-8℃ to ensure the activity of the ingredients; freshly stewed ready-to-eat bird's nest requires a precise constant temperature of 0-4℃ and an anti-condensation environment to prevent the growth of bacteria and the deterioration of the soup.

[0003] Existing refrigerated transport vehicles mostly use a unified, one-piece temperature-controlled structure, resulting in a uniform and fixed internal temperature. This cannot simultaneously meet the diverse storage needs of various types of bird's nest. While some customized refrigerated transport vehicles have partitions, these often use fixed partitions to divide temperature zones, with no adjustable partition sizes and poor versatility. Furthermore, traditional storage methods often involve manually stacking goods one by one inside the vehicle, which is cumbersome and time-consuming. The prolonged opening of the vehicle doors allows for the intrusion of large amounts of warm, humid air, leading to rapid loss of cold air and drastic temperature fluctuations. This can easily cause the bird's nest to become damp, condense, and deteriorate in quality.

[0004] In addition, the storage pallets of conventional cold chain trucks are mostly of fixed layer spacing structure, and the ventilation gap between layers cannot be adjusted. The uniformity of cold air flow in the truck is poor, making it difficult to control the intensity of cold penetration in each area by differentiating the ventilation volume. It is also impossible to adapt to the multi-temperature zone storage and transportation requirements based on the distribution pattern of cold sources in the truck. Summary of the Invention

[0005] This invention provides a temperature-controlled compartment for cold chain storage and transportation of bird's nest, in order to solve the problem of poor cold source distribution in existing cold chain transportation compartments for bird's nest.

[0006] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0007] The temperature-controlled compartment for cold chain storage and transportation of bird's nest includes a load-bearing mechanism, a refrigeration mechanism, and a stacking mechanism; The carrying mechanism includes a transport box, the refrigeration mechanism is installed inside the transport box, and the stacking mechanism includes a column, on which multiple pallets are inserted, and the multiple pallets are stacked vertically along the column. The stacking mechanism is capable of sliding within the transport box, and when the stacking mechanism slides within the transport box, the distance between two adjacent pallets increases as the sliding distance of the stacking mechanism within the transport box increases.

[0008] Furthermore, the stacking mechanism also includes a slide block, which is fixedly connected to the lowest tray, and the lowest tray is fixedly connected to the bottom ends of the four columns; Each of the pallets has a mounting block fixedly connected to its side. A piston cylinder is fixedly connected to the upper part of the mounting block. A piston rod is slidably connected inside the piston cylinder. The top of the piston rod on the lower pallet abuts against the lower surface of the mounting block on the upper pallet. When the slide slides inside the transport box, the multiple piston rods extend out of the corresponding piston cylinders, thereby increasing the distance between two adjacent pallets.

[0009] Furthermore, a piston plate is fixedly connected to the bottom end of the piston rod, and the piston plate divides the piston cylinder into an upper space and a lower space. A conduction hole is opened in the middle of the piston rod, and a branch hole communicating with the conduction hole is opened on the piston plate. Except for the bottom mounting block, all the other mounting blocks are provided with pressure transmission holes, and a plug valve communicating with the pressure transmission hole is installed on the lower surface. The conduction hole of the lower piston rod communicates with the pressure transmission hole through the plug valve. When the lower piston plate moves upward, the medium located in the upper space of the piston plate enters the lower space of the upper piston cylinder through the branch hole, the conduction hole, and the pressure transmission hole.

[0010] Furthermore, the lower surface of the bottom mounting block is fixedly connected to an active cylinder, and the bottom mounting block has a through hole that connects the bottom piston cylinder and the active cylinder.

[0011] Furthermore, a gear is rotatably connected inside the slide block, a rotating shaft is fixedly connected to the middle of the gear, a cam is fixedly connected to the end of the rotating shaft, and the side wall of the cam abuts against the cylinder rod of the active cylinder. The bottom wall of the transport box is provided with a slide rail, and multiple rack segments are spaced apart on the slide rail. When the sliding distance of the slide block on the slide rail increases, the number of rack segments meshing with the gear increases, thereby increasing the rotation angle of the gear. The shortening length of the cam-driven active cylinder increases, thereby increasing the spacing between the multiple trays.

[0012] Furthermore, the refrigeration mechanism includes a rectangular frame with rectangular holes at each of the four corners. Fans are connected to each of the four rectangular holes via brackets. A refrigeration plate is installed on the inner wall of the transport box located within the rectangular frame. When the fan is running, it can conduct cold airflow from the refrigeration plate.

[0013] Furthermore, L-shaped plates are slidably connected to the edges of the four rectangular holes, and the L-shaped plates can be moved away from the rectangular holes, thereby reducing the temperature of the airflow delivered by the fan.

[0014] Furthermore, a turntable is rotatably connected to the center of the rectangular frame, and connecting rods are fixedly connected to the four L-shaped plates. Sliding rods are fixedly connected to the ends of the connecting rods. A limiting frame that cooperates with the connecting rods is fixedly connected to the rectangular frame, and an oblique sliding groove that cooperates with the four sliding rods is provided on the turntable.

[0015] Furthermore, the transport container is equipped with a phase change energy storage interlayer inside its wall, which can store the cooling energy of the cooling chip.

[0016] Furthermore, the transport container is provided with a door at the rear, and the refrigeration mechanism is located inside the transport container at the end away from the door, so that the temperature inside the transport container gradually decreases from the door to the refrigeration mechanism.

[0017] The beneficial effects of this invention are analyzed as follows: The temperature-controlled compartment for cold chain storage and transportation of bird's nest includes a carrying mechanism, a refrigeration mechanism, and a stacking mechanism. The carrying mechanism includes a transport box, and the refrigeration mechanism is installed inside the transport box. The stacking mechanism includes a column, on which multiple pallets are inserted. The multiple pallets are stacked vertically along the column. The stacking mechanism can slide inside the transport box, and when the stacking mechanism slides inside the transport box, the distance between two adjacent pallets increases as the sliding distance of the stacking mechanism inside the transport box increases.

[0018] The temperature-controlled carriage comprises three main parts: a carrying mechanism, a refrigeration mechanism, and a stacking mechanism. The carrying mechanism includes a transport box, serving as the main space for storing and transporting bird's nests. The refrigeration mechanism, installed inside the transport box, provides a cooling source for the carriage. The stacking mechanism includes uprights with multiple pallets inserted into them. These pallets are vertically stacked along the uprights to layer the bird's nest cargo. The entire stacking mechanism can slide along guide rails within the transport box. As the sliding distance of the stacking mechanism within the transport box increases, the spacing between adjacent pallets increases simultaneously, creating different ventilation and heat exchange spaces. The sliding mechanism... The movement and the spacing adjustment of the pallets work together. When the stacking mechanism slides from the door into the compartment, the internal transmission structure drives each layer of pallets to rise synchronously along the columns, so that the spacing between adjacent pallets increases evenly. This provides different air circulation and cold penetration conditions for different types of bird's nest. Through the sliding of the stacking mechanism and the linkage adjustment of the pallet spacing, different temperature and humidity environments can be naturally formed in the same compartment without additional electrical control equipment. This is suitable for the storage and transportation needs of various types of bird's nest, such as dried products, semi-finished products, and fresh stewed products. At the same time, the overall sliding loading and unloading of the pallets greatly improves the efficiency of operation and reduces the loss of cold air when the door is opened. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the refrigeration mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the cooling chip in this invention; Figure 5 This is a schematic diagram of the structure of the turntable in this invention; Figure 6 This is a schematic diagram of the structure of the phase change energy storage interlayer in this invention; Figure 7 This is a schematic diagram of the slide of the present invention.

[0020] In the diagram: 100, bearing mechanism; 110, transport box; 120, door; 130, phase change energy storage interlayer; 200, refrigeration mechanism; 210, rectangular frame; 211, limiting frame; 220, rectangular hole; 230, bracket; 240, fan; 250, cooling plate; 260, turntable; 261, inclined slide; 270, L-shaped plate; 280, connecting rod; 281, slide bar; 300, stacking mechanism; 310, column; 320, pallet; 330, slide block; 340, slide rail; 350, rack; 360, gear; 370, rotating shaft; 380, cam; 381, active cylinder; 382, ​​through hole; 390, mounting block; 391, piston cylinder; 392, piston plate; 393, piston rod; 394, branch hole; 395, conduction hole; 396, pressure transmission hole. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Examples, such as Figures 1-7 As shown, the temperature-controlled compartment for cold chain storage and transportation of bird's nest includes a carrying mechanism 100, a refrigeration mechanism 200, and a stacking mechanism 300. The carrying mechanism 100 includes a transport box 110, and the refrigeration mechanism 200 is installed inside the transport box 110. The stacking mechanism 300 includes a column 310, on which multiple pallets 320 are inserted. The multiple pallets 320 are stacked vertically along the column 310. The stacking mechanism 300 can slide inside the transport box 110, and when the stacking mechanism 300 slides inside the transport box 110, the distance between two adjacent pallets 320 increases as the sliding distance of the stacking mechanism 300 inside the transport box 110 increases.

[0023] The working mechanism of the temperature-controlled compartment for cold chain storage and transportation of bird's nest provided in this embodiment is as follows: The temperature-controlled carriage comprises three main parts: a carrying mechanism 100, a refrigeration mechanism 200, and a stacking mechanism 300. The carrying mechanism 100 includes a transport box 110, serving as the main space for storing and transporting bird's nests. The refrigeration mechanism 200 is installed inside the transport box 110 to provide a cooling source for the carriage. The stacking mechanism 300 includes a column 310 with multiple pallets 320 inserted into it. The pallets 320 are vertically stacked along the column 310 to layer the bird's nest goods. The stacking mechanism 300 can slide along guide rails within the transport box 110. As the sliding distance of the stacking mechanism 300 within the transport box 110 increases, the spacing between adjacent pallets 320 increases synchronously, thus creating different ventilation channels. In the air heat exchange space, the sliding action of the stacking mechanism 300 and the spacing adjustment of the pallets 320 work together. When the stacking mechanism 300 slides from the door 120 into the compartment, the internal transmission structure drives each layer of pallets 320 to rise synchronously along the column 310, so that the spacing between adjacent pallets 320 increases uniformly. This provides differentiated air circulation and cold penetration conditions for different types of bird's nest. Through the sliding of the stacking mechanism 300 and the linkage adjustment of the spacing of the pallets 320, different temperature and humidity environments can be naturally formed in the same compartment without additional electrical control equipment. This is suitable for the storage and transportation needs of various types of bird's nest, such as dried products, semi-finished products, and fresh stewed products. At the same time, the overall sliding loading and unloading of the pallets 320 greatly improves the efficiency of operation and reduces the loss of cold air when the door is opened.

[0024] Among the optional methods in this embodiment, the more preferred one is: The stacking mechanism 300 also includes a slide 330, which is fixedly connected to the lowest tray 320, and the lowest tray 320 is fixedly connected to the bottom of four columns 310. Each of the multiple trays 320 has a mounting block 390 fixedly connected to its side. A piston cylinder 391 is fixedly connected to the upper part of the mounting block 390. A piston rod 393 is slidably connected inside the piston cylinder 391. The top of the piston rod 393 on the lower tray 320 abuts against the lower surface of the mounting block 390 on the upper tray 320. When the slide 330 slides in the transport box 110, the multiple piston rods 393 extend out of the corresponding piston cylinder 391, thereby increasing the distance between two adjacent trays 320.

[0025] The sliding of the slide block 330 can be converted into relative movement between the piston cylinder 391 and the piston rod 393. When the piston rod 393 extends, it abuts against the upper mounting block 390, causing each layer of trays 320 to rise synchronously. Since the strokes of each piston cylinder 391 and piston rod 393 are matched, the lifting height of adjacent trays 320 is consistent, ensuring that the spacing increases uniformly. The mechanical transmission structure of the piston cylinder 391 and piston rod 393 is used to realize the adjustment of the spacing of the trays 320. The structure is simple and reliable, with no electrical components, and is suitable for the low temperature and high humidity environment of cold chain trucks.

[0026] Among the optional methods in this embodiment, the more preferred one is: A piston plate 392 is fixedly connected to the bottom end of the piston rod 393. The piston plate 392 divides the piston cylinder 391 into an upper space and a lower space. A conduction hole 395 is opened in the middle of the piston rod 393. A branch hole 394 communicating with the conduction hole 395 is opened on the piston plate 392. Except for the bottom mounting block 390, all other mounting blocks 390 are provided with pressure transmission holes 396. A plug valve communicating with the pressure transmission hole 396 is installed on the lower surface. The conduction hole 395 of the lower piston rod 393 is connected to the pressure transmission hole 396 through the plug valve. When the lower piston plate 392 moves upward, the medium in the upper space of the piston plate 392 enters the lower space of the upper piston cylinder 391 through the branch hole 394, conduction hole 395 and pressure transmission hole 396.

[0027] Using liquid or gas as the pressure transmission medium, the medium in the lower piston cylinder 391 is conveyed to the upper piston cylinder 391 through the compression action of the piston plate 392 via the conduction hole 395, branch hole 394, and plug valve, achieving step-by-step pressure transmission. This drives the piston rods 393 of each layer to extend synchronously, lifting the pallets 320. The plug valve ensures the transmission of the medium while also allowing easy disassembly and assembly of each pallet 320 from the column 310. The synchronous drive of each layer of pallets 320 is achieved through medium pressure transmission, resulting in good transmission uniformity. The distance difference between adjacent pallets 320 can be controlled within a very small range. Furthermore, the structure is compact, requiring no additional power source. The linkage adjustment of multiple layers of pallets 320 can be achieved through step-by-step medium transmission, making it suitable for the sealed operating environment of cold chain trucks.

[0028] Among the optional methods in this embodiment, the more preferred one is: The bottom mounting block 390 has an active cylinder 381 fixedly connected to its lower surface, and the bottom mounting block 390 has a through hole 382 that connects the bottom piston cylinder 391 and the active cylinder 381.

[0029] When the cylinder rod of the active cylinder 381 shortens, it generates initial pressure by transmitting a medium into the bottom piston cylinder 391. This pressure is then transmitted step by step to each upper piston cylinder 391 through the medium, driving each piston rod 393 to extend synchronously, thereby increasing the spacing between the trays 320. An independent active cylinder 381 is set up as the initial power unit, ensuring stable and controllable power output. The pressure can be precisely adjusted according to the sliding stroke of the stacking mechanism 300 to match different tray spacing requirements. At the same time, the cylinder is directly connected to the pressure transmission system, resulting in high transmission efficiency and no additional transmission loss.

[0030] Among the optional methods in this embodiment, the more preferred one is: A gear 360 is rotatably connected inside the slide block 330. A rotating shaft 370 is fixedly connected to the middle of the gear 360. A cam 380 is fixedly connected to the end of the rotating shaft 370. The side wall of the cam 380 abuts against the cylinder rod of the active cylinder 381. A slide rail 340 is provided on the bottom wall of the transport box 110. Multiple racks 350 are spaced apart on the slide rail 340. When the sliding distance of the slide block 330 on the slide rail 340 increases, the number of racks 350 meshing with the gear 360 increases, thereby increasing the rotation angle of the gear 360. The shortening length of the active cylinder 381 driven by the cam 380 increases, thereby increasing the spacing between the multiple trays 320.

[0031] When the slide block 330 slides along the slide rail 340, the gear 360 meshes with the rack 350, converting linear motion into rotational motion. The rotation of the gear 360 drives the cam 380 to rotate. The cam 380, through contour changes, compresses the cylinder rod of the active cylinder 381, causing the cylinder rod to shorten and apply pressure into the piston cylinder 391. The longer the sliding distance, the more gear 360 can mesh with the rack 350, resulting in a larger rotation angle after being driven. The longer the compression stroke of the cam 380 on the cylinder rod, the greater the medium pressure, and the synchronously increase the spacing of the trays 320. Furthermore, the shaft 370 and the slide block 330 are connected by... With a one-way bearing connection and the rotation angle of cam 380 within 90 degrees, the quadrant point on cam 380 furthest from the axis of rotation 370 will not cross the contact part with the active cylinder 381. Through the linkage between gear 360, rack 350 and cam 380, the sliding stroke of stacking mechanism 300 is directly converted into the adjustment power of tray spacing 320. No additional electrical control or manual operation is required, realizing automatic adjustment of "the deeper it is pushed in, the larger the spacing". It naturally matches the cold distribution in the compartment and adapts to the environment where the temperature gradually decreases from the door 120 to the inside of the compartment, realizing precise temperature control for different types of bird's nest.

[0032] Among the optional methods in this embodiment, the more preferred one is: The refrigeration mechanism 200 includes a rectangular frame 210, with rectangular holes 220 at each of the four corners of the rectangular frame 210. Fans 240 are connected to each of the four rectangular holes 220 via brackets 230. Cooling plates 250 are installed on the inner wall of the transport box 110 located inside the rectangular frame 210. When the fan 240 is running, it can conduct cold airflow from the cooling plates 250.

[0033] When the cooling chip 250 is powered on, it generates cooling. The fan 240 blows the cool air near the cooling chip 250 into the interior of the carriage through the rectangular hole 220, forming a circulating airflow. This ensures that the cooling is evenly distributed in the carriage, providing a basic cooling source for different temperature zones. The cooling chip 250 can be a semiconductor cooling chip or a compressor cooling system. The fans 240 distributed at the four corners can achieve full-area air supply, reducing temperature dead zones in the carriage and ensuring a stable cooling supply for each temperature zone.

[0034] Among the optional methods in this embodiment, the more preferred one is: An L-shaped plate 270 is slidably connected to the edge of each of the four rectangular holes 220. The L-shaped plate 270 can be moved away from the rectangular holes 220, thereby reducing the temperature of the airflow delivered by the fan 240.

[0035] When the L-shaped plate 270 is away from the rectangular hole 220, more cold air from the cooling element 250 can be transmitted through the enlarged gap between the L-shaped plate 270 and the rectangular frame 210, which increases the flow rate of the cold air and lowers the temperature of the air transmitted into the compartment. When the L-shaped plate 270 is close to the rectangular hole 220, the amount of cold air transmitted decreases, thereby relatively increasing the air temperature and achieving the regulation of the cold air temperature. By adjusting the ventilation area by sliding the L-shaped plate 270, the temperature of the cold air can be controlled in stages without adjusting the power of the cooling element 250, adapting to the temperature requirements of different temperature zones. At the same time, the structure is simple, the operation is convenient, and it is suitable for the sealed working environment of the cold chain compartment.

[0036] Among the optional methods in this embodiment, the more preferred one is: A turntable 260 is rotatably connected to the middle of the rectangular frame 210. Each of the four L-shaped plates 270 is fixedly connected to a connecting rod 280. A sliding rod 281 is fixedly connected to the end of the connecting rod 280. A limiting frame 211 that cooperates with the connecting rod 280 is fixedly connected to the rectangular frame 210. An oblique sliding groove 261 that cooperates with the four sliding rods 281 is provided on the turntable 260.

[0037] When the turntable 260 rotates, the inclined slide 261 drives the connecting rod 280 to move along the guide of the limiting frame 211 via the slide rod 281, causing the four L-shaped plates 270 to move synchronously, uniformly adjusting the amount of cold air discharged from each rectangular hole 220, ensuring that the cold air volume of the four corner fans 240 is consistent, and avoiding local temperature deviations. The turntable 260 can be driven to rotate by a servo motor, and an insulating shell is set outside the servo motor. Multiple temperature sensors are set inside the transport box 110. The temperature obtained by the temperature sensors is used to control the operation of the servo motor, thereby changing the amount of cold air discharged. Among the optional methods in this embodiment, the more preferred one is: The transport container 110 has a phase change energy storage interlayer 130 inside its wall, which can store the cooling capacity of the cooling chip 250.

[0038] When the cooling element 250 is working normally, the phase change energy storage interlayer 130 in the compartment wall absorbs cold energy and undergoes a phase change, storing the cold energy as latent heat. When the cooling element 250 stops or the compartment door is opened, causing an increase in heat load, the phase change material undergoes a reverse phase change, slowly releasing the stored cold energy, suppressing the temperature rise in the compartment, and reducing temperature fluctuations. The storage and slow release of cold energy are achieved through the integrated phase change energy storage interlayer 130 in the compartment wall, without the need for additional cold storage devices. It can effectively maintain the temperature stability in the compartment during loading and unloading, door opening, and short-term cooling interruption, avoiding the quality degradation of bird's nest due to excessive temperature fluctuations. At the same time, it reduces the start-up and shutdown frequency of the cooling element 250, saving energy. The phase change energy storage interlayer 130 uses food-grade composite phase change cold storage material, with a phase change temperature controlled between 0 and 5°C, suitable for the three temperature ranges of 0 to 15°C required for bird's nest. The core material is a lauric acid-tetradecane compound (phase change temperature 2 to 4°C, latent heat ≥180J / g), which is encapsulated in melamine-formaldehyde resin microcapsules and then uniformly mixed into rigid polyurethane foam at a ratio of 20wt%, and integrally cast into the interlayer of the compartment wall. This structure accumulates cold energy when the cooling element 250 is working, and slowly releases cold energy when loading, unloading, opening the door, or during short-term shutdown, suppressing temperature fluctuations inside the compartment. It also has no liquid phase leakage, is safe and non-toxic, and has good cycle stability.

[0039] Among the optional methods in this embodiment, the more preferred one is: The rear of the transport container 110 is provided with a door 120, and the refrigeration unit 200 is located inside the transport container 110 at the end away from the door 120, so that the temperature inside the transport container 110 gradually decreases from the door 120 to the refrigeration unit 200.

[0040] The refrigeration unit 200 is located at the front of the compartment. The cold air flows from front to back, with sufficient cooling and the lowest temperature at the front. The area near the door 120 is more affected by the outside hot air and has a relatively higher temperature. The spacing between the trays 320 of the stacking mechanism 300 increases with the sliding distance. The larger spacing between the front trays 320 ensures sufficient ventilation and heat exchange, resulting in a lower temperature. The smaller spacing between the rear trays 320 results in weaker cold air penetration and a relatively higher temperature. Together, they form a three-level temperature zone. The positions of the refrigeration unit 200 and the door 120, combined with the adjustment of the tray spacing of the stacking mechanism 300, naturally form a three-level temperature zone from the door 120 to the interior of the compartment, which is suitable for the storage and transportation needs of dried bird's nest (10-15℃), wet-soaked semi-finished products (5-8℃), and freshly stewed ready-to-eat bird's nest (0-4℃). No additional partitions or temperature control equipment are required. The structure is simple and the zoning effect is stable. At the same time, it reduces the direct impact of hot air on the low-temperature zone at the front when the door is opened, thus improving the stability of the cold chain.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled vehicle for cold chain storage and transportation of bird's nest, characterized in that: It includes a load-bearing mechanism (100), a cooling mechanism (200), and a stacking mechanism (300). The carrying mechanism (100) includes a transport box (110), the refrigeration mechanism (200) is installed inside the transport box (110), and the stacking mechanism (300) includes a column (310), on which a plurality of pallets (320) are inserted, and the plurality of pallets (320) are stacked vertically along the column (310); The stacking mechanism (300) is capable of sliding within the transport box (110), and when the stacking mechanism (300) slides within the transport box (110), the distance between two adjacent pallets (320) increases as the sliding distance of the stacking mechanism (300) within the transport box (110) increases.

2. The temperature-controlled vehicle for cold chain storage and transportation of bird's nest according to claim 1, characterized in that: The stacking mechanism (300) also includes a slide (330), which is fixedly connected to the lowest tray (320), and the lowest tray (320) is fixedly connected to the bottom ends of the four columns (310). A mounting block (390) is fixedly connected to the side of each of the multiple pallets (320). A piston cylinder (391) is fixedly connected to the upper part of the mounting block (390). A piston rod (393) is slidably connected inside the piston cylinder (391). The top of the piston rod (393) on the lower pallet (320) abuts against the lower surface of the mounting block (390) on the upper pallet (320). When the slide (330) slides inside the transport box (110), the multiple piston rods (393) extend out of the corresponding piston cylinder (391), thereby increasing the distance between two adjacent pallets (320).

3. The temperature-controlled vehicle for cold chain storage and transportation of bird's nest according to claim 2, characterized in that: A piston plate (392) is fixedly connected to the bottom end of the piston rod (393). The piston plate (392) divides the piston cylinder (391) into an upper space and a lower space. A conduction hole (395) is provided in the middle of the piston rod (393). A branch hole (394) communicating with the conduction hole (395) is provided on the piston plate (392). Except for the bottom mounting block (390), all other mounting blocks (390) are provided with pressure transmission holes (394). 96), and a plug valve connected to the pressure transmission hole (396) is installed on the lower surface. The conduction hole (395) of the lower piston rod (393) is connected to the pressure transmission hole (396) through the plug valve. When the lower piston plate (392) moves upward, the medium in the upper space of the piston plate (392) enters the lower space of the upper piston cylinder (391) through the branch hole (394), the conduction hole (395) and the pressure transmission hole (396).

4. The temperature-controlled carriage for cold chain storage and transportation of bird's nest according to claim 3, characterized in that: The bottom mounting block (390) has an active cylinder (381) fixedly connected to its lower surface. The bottom mounting block (390) has a through hole (382) that connects the bottom piston cylinder (391) and the active cylinder (381).

5. The temperature-controlled vehicle for cold chain storage and transportation of bird's nest according to claim 4, characterized in that: A gear (360) is rotatably connected inside the slide (330), a rotating shaft (370) is fixedly connected to the middle of the gear (360), a cam (380) is fixedly connected to the end of the rotating shaft (370), and the side wall of the cam (380) abuts against the cylinder rod of the active cylinder (381). The bottom wall of the transport box (110) is provided with a slide rail (340), and multiple racks (350) are spaced apart on the slide rail (340). When the sliding distance of the slide block (330) on the slide rail (340) increases, the number of racks (350) meshing with the gear (360) increases, thereby increasing the rotation angle of the gear (360). The shortening length of the active cylinder (381) driven by the cam (380) increases, thereby increasing the spacing between the multiple trays (320).

6. The temperature-controlled carriage for cold chain storage and transportation of bird's nest according to claim 1, characterized in that: The refrigeration mechanism (200) includes a rectangular frame (210), and rectangular holes (220) are provided at the four corners of the rectangular frame (210). Fans (240) are connected to the four rectangular holes (220) through brackets (230). The transport box (110) is located on the inner wall of the rectangular frame (210) and a refrigeration plate (250) is installed. When the fan (240) is running, it can conduct the cold airflow of the refrigeration plate (250).

7. The temperature-controlled vehicle for cold chain storage and transportation of bird's nest according to claim 6, characterized in that: An L-shaped plate (270) is slidably connected to the edge of each of the four rectangular holes (220). The L-shaped plate (270) can move away from the rectangular holes (220), thereby reducing the temperature of the airflow delivered by the fan (240).

8. The temperature-controlled vehicle for cold chain storage and transportation of bird's nest according to claim 7, characterized in that: A turntable (260) is rotatably connected to the middle of the rectangular frame (210). A connecting rod (280) is fixedly connected to each of the four L-shaped plates (270). A sliding rod (281) is fixedly connected to the end of the connecting rod (280). A limiting frame (211) that cooperates with the connecting rod (280) is fixedly connected to the rectangular frame (210). An inclined sliding groove (261) that cooperates with the four sliding rods (281) is provided on the turntable (260).

9. The temperature-controlled compartment for cold chain storage and transportation of bird's nest according to claim 6, characterized in that: The transport container (110) is provided with a phase change energy storage interlayer (130) inside the container wall, which can store the cold energy of the cooling chip (250).

10. The temperature-controlled compartment for cold chain storage and transportation of bird's nest according to claim 9, characterized in that: The transport container (110) is provided with a door (120) at the rear. The refrigeration mechanism (200) is located inside the transport container (110) at one end away from the door (120), so that the temperature inside the transport container (110) gradually decreases in the direction from the door (120) to the refrigeration mechanism (200).

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