Multifunctional container based on cold chain transportation

Abstract

The invention discloses a multifunctional container based on cold chain transportation, and relates to the field of containers, the multifunctional container comprises an auxiliary frame, a compartment body, an air outlet assembly, a safety net and an unloading assembly, the air outlet assembly is composed of a front flow channel, a top flow channel and side flow channels, and a plurality of top air outlet boxes which are evenly distributed are arranged on the top flow channel of the container; a plurality of evenly-distributed side air outlet boxes are arranged on the container side flow channel, the safety nets are evenly arranged in the compartment body in an array shape, locking pieces are connected to the four corners of each container safety net, each container locking piece comprises a sleeve, a movable head and a connector, and the discharging assembly is arranged on the auxiliary frame and close to the rear end. The container unloading assembly comprises a guide rail and a movable frame. According to the multifunctional container based on cold chain transportation, air can be uniformly discharged at multiple positions and multiple angles in the container body, so that cold air can uniformly flow into the container body, it is ensured that the temperature in the container body cannot be uniformly distributed, and then the refrigeration effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of containers, and particularly to a multi-functional container based on cold chain transportation. Background Art

[0002] Cold chain transportation containers are designed specifically for transporting frozen goods or low-temperature goods that require a certain temperature to be maintained. They are commonly used to load and transport goods such as meat and fruits, and can be divided into built-in mechanical refrigerated containers with refrigerators and external mechanical refrigerated containers without refrigerators.

[0003] In the prior art, cold chain containers only deliver cold air through evaporator fans. The air outlets provided inside are relatively single, and the cold air cannot flow evenly to the inside of the container body, resulting in uneven temperature distribution inside the container. In order to maintain the low-temperature effect inside the container, it may be necessary to increase the refrigeration power, increasing energy consumption. In addition, during unloading, goods need to be manually carried repeatedly, with a high working intensity and low unloading efficiency.

[0004] Therefore, we propose a multi-functional container based on cold chain transportation. Summary of the Invention

[0005] Technical problems to be solved: The air outlets of cold chain containers are single, the temperature inside the container body cannot be evenly distributed, and the working intensity is high during the unloading process, with low unloading efficiency.

[0006] In view of the deficiencies of the prior art, the present invention provides a multi-functional container based on cold chain transportation, thereby solving the technical problems mentioned in the background art.

[0007] Technical Solution:

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0009] A multi-functional container based on cold chain transportation, comprising: a sub-frame and a container body. The container body is installed above the sub-frame. The container body is composed of an outer frame and box panels. A refrigeration unit is installed on the sub-frame near the front end. An evaporator unit is installed at the top of the front panel of the box panels. The evaporator unit is connected to the refrigeration unit through a connection box. A fan is installed outside the evaporator unit;

[0010] An air outlet assembly, which is arranged inside the container body and connected to the fan. The air outlet assembly is composed of a front flow channel, a top flow channel, and side flow channels. The top flow channel is arranged at the top of the container body. A number of evenly distributed top air outlet boxes are arranged on the top flow channel. Two groups of side flow channels are symmetrically arranged at the top of the side panels of the container body. A number of evenly distributed side air outlet boxes are arranged on the side flow channels;

[0011] The safety net is evenly arranged in an array inside the box body. Locking members are connected to the four corners of the safety net. The locking members include sleeves, movable heads, and connecting heads.

[0012] The unloading assembly is arranged on the sub-frame and near the rear end. The unloading assembly includes a guide rail and a movable frame. The movable frame is slidably arranged inside the guide rail, and a support frame is connected to the right end of the movable frame.

[0013] In a possible implementation manner, the box board is fixedly welded to the outer frame. The box board includes an extruded plastic board arranged at the center. Fiberglass panels are fixedly bonded to both the inner and outer sides of the extruded plastic board. An outer coating is provided on the surface of the outer fiberglass panel, and an inner coating is provided on the surface of the inner fiberglass panel.

[0014] In a possible implementation manner, symmetrically distributed rear doors are installed at the rear side of the outer frame. A side door is installed on the left side panel of the box body. A number of evenly distributed identification strips are fixedly bonded to the box body near the edge. Mudguards are installed at the bottom of the sub-frame, and guardrails are installed on both the left and right sides of the sub-frame.

[0015] In a possible implementation manner, the front flow channels are arranged on both sides of the connection box and are connected to the fan at the top. A number of evenly distributed air outlet holes are opened on the front flow channels. The front end of the top flow channel is connected to the fan. A number of top air outlet boxes are evenly arranged on the top flow channel. First guide fans are installed on the top flow channel near each top air outlet box. A number of evenly distributed top air outlet holes are provided on the top air outlet boxes.

[0016] In a possible implementation manner, the front end of the side flow channel is connected to the fan. A fixed frame is fixedly welded to the side panel of the box body near the top. A number of side air outlet boxes are evenly installed inside the fixed frame and are connected to the side flow channel. Four groups of evenly distributed oblique air outlet openings are provided on the side air outlet boxes. The vertical inclination angles of the four groups of oblique air outlet openings are 15°, 30°, 45°, and 60° in sequence.

[0017] In a possible implementation manner, second guide fans are installed on the side flow channel near each side air outlet box. Guide impellers are installed inside both the first guide fan and the second guide fan.

[0018] In a possible implementation, fixing ropes integrally formed are provided at the four corners of the safety net. A locking block is slidably connected to the inner side of the sleeve. A guide sleeve is provided on the sleeve and on the side close to the safety net. The end of the fixing rope passes through the guide sleeve and is fixedly connected to the locking block. The movable head is located on the side away from the safety net and is rotatably connected to the end of the sleeve. An adjusting screw rod is provided on the movable head and inside the guide sleeve. The adjusting screw rod passes through the locking block and is threadedly connected to the locking block.

[0019] In a possible implementation, the connecting head is rotatably connected to the movable head. A hook is connected to the connecting head through a rope. Fixing grooves are provided on the bottom plate of the compartment body and close to the left and right edges. Fixed rings distributed in an array are welded and fixed on the side plate of the compartment body and at the bottom of the fixed frame. The top end of the safety net is hung and matched with the fixed rings through the hooks. The bottom end of the safety net is hung and matched with the fixing grooves through the hooks.

[0020] In a possible implementation, the guide rail is welded and fixed to the rear end of the sub-frame. A chute is formed on the side wall of the guide rail. A sliding shaft is welded and fixed to the front end of the movable frame. The sliding shaft is slidably connected to the chute. A plurality of rollers distributed in an array are provided inside the movable frame. The rollers are rotatably connected to the movable frame through rotating shafts. Symmetrically distributed pins are installed on the sub-frame and close to the guide rail. Symmetrically distributed fixing holes are formed on the side wall of the movable frame and close to the rear end. The pins are inserted and matched with the fixing holes.

[0021] In a possible implementation, a connecting seat is provided above the support frame. The connecting seat is rotatably connected to the rear end of the movable frame. Symmetrically distributed sliding rods are provided at the bottom of the connecting seat and close to the edge. The sliding rods are slidably connected to the support frame. A threaded sleeve is rotatably connected to the support frame and close to the center. A threaded rod is welded and fixed to the center of the bottom of the connecting seat. The threaded rod is threadedly connected to the threaded sleeve. A limiting block is welded and fixed on the connecting seat and at the rear side of the movable frame. A sliding seat is installed on the rear side of the movable frame. A clamping block is slidably connected to the sliding seat. The bottom end of the clamping block is clamped and matched with the limiting block.

[0022] Beneficial effects:

[0023] In this solution, by providing an air outlet assembly to convey cold air through the front flow channel, the top flow channel and the side flow channel, air can be evenly discharged at multiple positions and angles inside the compartment body, enabling the cold air to evenly flow inside the box body, ensuring that the temperature inside the box body can be evenly distributed, thereby improving the refrigeration effect and reducing energy consumption. At the same time, a concealed design is adopted for the refrigeration unit, which can improve the overall aesthetic effect of the compartment body.

[0024] In this solution, by providing a safety net and a locking member, after stacking the goods, rotate the movable head so that the locking block drives the fixing rope to tighten the safety net. Through the mutual cooperation of the safety net, the sleeve, the movable head and the connecting head, the goods can be fixed multiple times, effectively preventing the goods from shifting during transportation and reducing the collision damage between the goods and the compartment.

[0025] In this solution, by providing a discharging assembly, when unloading the goods, pull out the movable frame outward. Through the mutual cooperation of the support frame and the connecting seat, support the end of the movable frame at different heights, and guide and convey the goods through the rollers on the movable frame, which can avoid the staff from bending down repeatedly, reduce the working intensity during unloading, and improve the unloading efficiency. Brief Description of the Drawings

[0026] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and describes them in detail in conjunction with the drawings as follows.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the air outlet assembly inside the compartment of the present invention;

[0029] Figure 3 It is a schematic diagram of the subframe structure of the present invention;

[0030] Figure 4 It is a right view of the compartment of the present invention;

[0031] Figure 5 It is a schematic diagram of the front flow channel structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the top flow channel structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the side flow channel structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the side air outlet box structure of the present invention;

[0035] Figure 9 It is a schematic diagram of the box board structure of the present invention;

[0036] Figure 10 It is a schematic diagram of the safety net inside the compartment of the present invention;

[0037] Figure 11 It is a schematic diagram of the safety net structure of the present invention;

[0038] Figure 12 It is a schematic diagram of the locking member structure of the present invention;

[0039] Figure 13 Schematic diagram of the unloading component of the present invention;

[0040] Figure 14 Schematic diagram of the support frame of the present invention.

[0041] Legend: 1. Sub-frame; 11. Refrigeration unit; 12. Evaporator unit; 121. Connection box; 13. Fan; 14. Mudguard; 15. Guardrail; 2. Compartment; 21. Outer frame; 22. Box board; 221. Extruded plastic board; 222. Fiberglass reinforced plastic panel; 223. Outer coating; 224. Inner coating; 23. Rear door; 24. Side door; 25. Identification strip; 26. Fixed groove; 3. Front flow channel; 31. Air outlet hole; 4. Top flow channel; 41. Top air outlet box; 42. First guide fan; 43. Top air outlet hole; 5. Side flow channel; 51. Fixed frame; 511. Fixed ring; 52. Side air outlet box; 53. Oblique air outlet; 54. Second guide fan; 55. Guide impeller; 6. Safety net; 61. Fixed rope; 62. Locking part; 63. Sleeve; 631. Locking block; 632. Guide sleeve; 64. Movable head; 641. Adjusting screw; 65. Connecting head; 651. Hook; 7. Guide rail; 71. Slide groove; 72. Plug; 8. Movable frame; 81. Slide shaft; 82. Roller; 83. Fixed hole; 84. Slide seat; 85. Block; 9. Support frame; 91. Connection seat; 911. Limit block; 92. Slide bar; 93. Threaded sleeve; 94. Threaded rod. Detailed implementation manners

[0042] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention can be implemented in various different forms. Therefore, the present invention is not limited to the embodiments described below. In addition, in order to describe the present invention more clearly, components not connected to the invention will be omitted from the drawings;

[0043] The technical solutions in the embodiments of the present application are to solve the problems in the above-mentioned background technology, and the general idea is as follows:

[0044] Embodiment 1:

[0045] This embodiment introduces the specific structure of a multifunctional container based on cold chain transportation, as Figures 1-12As shown in the figure, it includes a subframe 1 and a compartment 2. The compartment 2 is installed above the subframe 1. Through the subframe 1, the compartment 2 can be installed on a transport vehicle. The compartment 2 is composed of an outer frame 21 and box panels 22. A refrigeration unit 11 is installed on the subframe 1 near the front end. An evaporator unit 12 is installed at the top of the front panel of the box panel 22. The evaporator unit 12 is connected to the refrigeration unit 11 through a connection box 121. By integrally installing the traditional refrigeration unit 11 located outside the compartment 2 on the outer frame 21, the refrigeration unit 11 is no longer visible on the appearance of the compartment 2, making the container look like a standard box, improving the aesthetics and safety. During the refrigeration process, the refrigeration unit 11 and the evaporator unit 12 are connected through the connection box 121, so that cold air can be diffused inside the compartment 2 through the evaporator unit 12, thereby refrigerating the inside of the compartment 2.

[0046] In order to improve the aesthetic effect of the compartment 2 and have a high protection effect on the refrigeration unit 11, the installation position of the refrigeration unit 11 can be moved to near the engine of the transport vehicle for integrated installation.

[0047] A blower 13 is installed outside the evaporator unit 12. An air outlet assembly connected to the blower 13 is provided inside the compartment 2. The air outlet assembly is composed of a front flow channel 3, a top flow channel 4 and side flow channels 5. The top flow channel 4 is arranged at the top of the compartment 2. A number of evenly distributed top air outlet boxes 41 are arranged on the top flow channel 4. Two groups of side flow channels 5 are symmetrically arranged at the top of the side plates of the compartment 2. A number of evenly distributed side air outlet boxes 52 are arranged on the side flow channels 5.

[0048] During the process of transporting cold air, through the mutual cooperation of the blower 13 and the air outlet assembly, the cold air is transported through the front flow channel 3, the top flow channel 4 and the side flow channels 5, and can evenly discharge air at multiple parts of the compartment 2, so that the cold air can evenly flow into the inside of the box, thereby ensuring that the temperature inside the box cannot be evenly distributed, improving the refrigeration effect and reducing energy consumption.

[0049] Furthermore, a safety net 6 distributed in an array is also arranged inside the compartment 2. Locking members 62 are connected to the four corners of the safety net 6. The locking members 62 include a sleeve 63, a movable head 64 and a connecting head 65. Through the locking members 62, the safety net 6 can be installed inside the compartment 2 and the safety net 6 can be tightened, thereby limiting and fixing the goods inside the compartment 2. During transportation, collisions between goods and between goods and the compartment 2 can be avoided, effectively preventing damage to the goods or the compartment 2.

[0050] Such as Figures 1-3As shown in the figure, symmetrically distributed rear doors 23 are installed at the rear side of the outer frame 21. The rear doors 23 are connected to the outer frame 21 through hinges. A side door 24 is installed on the left side panel of the compartment body 2, and the side door 24 is connected to the left side panel of the compartment body 2 through a hinge. Lock catches are installed on both the rear doors 23 and the side door 24 for fixation. Through the cooperation of the rear doors 23 and the side door 24, operations can be carried out in multiple directions, improving the loading and unloading efficiency. In addition, in order to ensure the refrigeration effect of the compartment body 2, multiple sealing strips are installed at the edges of the rear doors 23 and the side door 24 to ensure effective sealing when closed, prevent moisture and dust from entering the interior of the carriage, and avoid the outward flow of cold air.

[0051] A number of uniformly distributed identification strips 25 are adhesively fixed on the compartment body 2 and near the edge. The identification strips 25 are red and white spaced reflective stickers, which can improve driving safety. A mudguard 14 is fixed to the bottom of the subframe 1 through bolts. The mudguard 14 protects the refrigeration unit 11, the guide rail 7, and the movable frame 8 below the subframe 1, and prevents the bottom of the compartment body 2 from being splashed with mud. Protective fences 15 are installed on both the left and right sides of the subframe 1 to further enhance the protection effect.

[0052] As Figures 4-8 shown in the figure, the front flow channels 3 are arranged on both sides of the connection box 121, and the top ends are connected to the fan 13. A number of uniformly distributed air outlet holes 31 are opened on the front flow channels 3. Through the air outlet holes 31, uniform air outlet can be achieved on the front side of the compartment body 2. The front end of the top flow channel 4 is connected to the fan 13. A number of top air outlet boxes 41 are uniformly arranged on the top flow channel 4. A number of uniformly distributed top air outlet holes 43 are arranged on the top air outlet boxes 41. Through the top air outlet holes 43, uniform air outlet can be achieved on the top of the compartment body 2.

[0053] The front end of the side flow channel 5 is connected to the fan 13. A fixed frame 51 is welded and fixed on the side panel of the compartment body 2 and near the top end. A number of side air outlet boxes 52 are uniformly installed inside the fixed frame 51 and are connected to the side flow channel 5. Four groups of uniformly distributed oblique air outlet holes 53 are arranged on the side air outlet boxes 52. The vertical inclination angles of the four groups of oblique air outlet holes 53 are 15°, 30°, 45°, and 60° in sequence. Through the cooperation of the four groups of oblique air outlet holes 53, uniform air outlet can be achieved on both sides of the compartment body 2 along different angles, thereby improving the flow and diffusion effect of cold air inside the compartment body 2 and ensuring uniform distribution of cold air.

[0054] A first guide fan 42 is installed on the top runner 4 near each top air outlet box 41, and a second guide fan 54 is installed on the side runner 5 near each side air outlet box 52. A guide impeller 55 is installed inside both the first guide fan 42 and the second guide fan 54. When the first guide fan 42 operates to drive the guide impeller 55 to rotate, it can drive the cold air inside the top runner 4 to flow rapidly, ensuring that the cold air is evenly distributed in each top air outlet box 41. When the second guide fan 54 operates to drive the guide impeller 55 to rotate, it can drive the cold air inside the side runner 5 to flow rapidly, ensuring that the cold air is evenly distributed in each side air outlet box 52. Furthermore, it enhances the air outlet effect of the top air outlet holes 43 and the diagonal air outlet 53, facilitating air circulation and temperature balance, promoting the temperature cycle inside the compartment 2, and improving the refrigeration efficiency.

[0055] As Figure 9 shown, the box panel 22 is fixedly welded to the outer frame 21. The box panel 22 includes an extruded board 221 disposed at the center. The extruded board 221 has excellent and durable heat insulation and heat preservation properties, as well as advantages such as high compressive strength and anti-aging. While ensuring the heat preservation performance of the box panel 22, it gives the box panel 22 relatively high structural strength. Fiberglass panels 222 are adhesively fixed to both the inner and outer sides of the extruded board 221. The fiberglass panels 222 have high chemical corrosion resistance and heat insulation properties, which helps protect the goods from the influence of temperature changes. An outer coating 223 is provided on the surface of the outer fiberglass panel 222. The outer coating 223 specifically uses an anti-ultraviolet coating, which can protect the fiberglass panel 222 from ultraviolet rays, delay material aging, and maintain its strength and appearance. An inner coating 224 is provided on the surface of the inner fiberglass panel 222. The inner coating 224 specifically uses a corrosion-resistant hydrophobic coating, which can prevent moisture or impurities in the goods from staying on the surface of the fiberglass panel 222, prevent moisture from penetrating into the interior of the fiberglass panel 222 and the extruded board 221, and avoid oxidation and corrosion caused by moisture.

[0056] As Figures 10-12 shown, fixing ropes 61 formed integrally are provided at the four corners of the safety net 6. A locking block 631 is slidably connected to the inside of the sleeve 63. A guide sleeve 632 is provided on the sleeve 63 near the safety net 6. The end of the fixing rope 61 passes through the guide sleeve 632 and is fixedly connected to the locking block 631. The movable head 64 is located on the side away from the safety net 6 and is rotatably connected to the end of the sleeve 63. An adjusting screw 641 is provided on the movable head 64 inside the guide sleeve 632. The adjusting screw 641 passes through the locking block 631 and is threadedly connected to the locking block 631.

[0057] When the movable head 64 is rotated, it can drive the adjusting screw 641 to rotate, causing the adjusting screw 641 to move relative to the locking block 631, and driving the locking block 631 to slide along the sleeve 63, so that the locking block 631 tightens the safety net 6 through the fixing rope 61, ensuring the restricting effect of the safety net 6 on the goods, preventing the goods from moving during transportation, and thus avoiding collisions between the goods and between the goods and the box body 2, reducing the wear of the goods or the box body.

[0058] A hook 651 is connected to the connecting head 65 through a rope. The connecting head 65 is rotatably connected to the movable head 64, so that the orientation of the hook 651 can be flexibly adjusted, facilitating the hanging and fixing of the hook 651. Fixing grooves 26 are provided on the bottom plate of the box body 2 and near the left and right edges. Fixed rings 511 distributed in an array are welded and fixed on the side plates of the box body 2 and at the bottom of the fixed frame 51. The top end of the safety net 6 is hung and matched with the fixed rings 511 through the hook 651. A number of uniformly distributed hanging interfaces are arranged inside the fixing groove 26. The bottom end of the safety net 6 is hung and matched with the hanging interfaces on the fixing groove 26 through the hook 651. The safety net 6 can be fixed inside the box body 2 through the hook 651, so that the safety net 6 protects the goods.

[0059] Working principle: When stacking goods, the goods to be transported are carried into the box body 2, and the goods are stacked neatly in sequence. Then, the safety net 6 is moved near the goods, and the safety net 6 is hung inside the box body 2 through the hook 651. Next, the movable head 64 is rotated, causing the adjusting screw 641 to move relative to the locking block 631, driving the locking block 631 to slide along the sleeve 63, so that the locking block 631 tightens the safety net 6 through the fixing rope 61, and making the safety net 6 in close contact with the goods. The safety net 6 and the goods are distributed at intervals inside the box body 2. The safety net 6 provides multiple restrictions on the goods, effectively preventing the goods from moving during transportation, thereby avoiding collision damage to the goods or the box body 2;

[0060] Furthermore, during transportation, the refrigeration unit 11 is operated, and air is delivered to the evaporator unit 12 through the connection box 121, and cold air is delivered to the blower 13 through the evaporator unit 12, and the cold air is evenly delivered to the front flow channel 3, the top flow channel 4 and the side flow channel 5 through the blower 13. The front flow channel 3 evenly discharges air on the front side of the box body 2 through the air outlet holes 31, the top flow channel 4 evenly discharges air on the top of the box body 2 through the top air outlet holes 43, and the side flow channel 5 evenly discharges air on both sides of the box body 2 at different angles through the inclined air outlet holes 53, thereby improving the flow and diffusion effect of the cold air inside the box body 2, facilitating air circulation and temperature balance, promoting the temperature cycle inside the box body 2, and improving the refrigeration efficiency.

[0061] Embodiment 2:

[0062] This embodiment is an improvement based on Embodiment 1:

[0063] When the traditional cold-chain transportation container is unloaded, the goods in the box body 2 need to be manually carried onto the trolley in sequence for subsequent transportation. During the process of carrying the goods, the staff need to bend down repeatedly, which is likely to cause the staff to have low back pain, and the carrying efficiency is low.

[0064] As Figure 3 , Figure 13 and Figure 14 shown, in order to improve the unloading efficiency and reduce the working intensity of the staff during unloading, a discharging component is arranged at the rear end of the sub-frame 1. The discharging component includes a guide rail 7 and a movable frame 8.

[0065] The movable frame 8 is slidably arranged inside the guide rail 7. The guide rail 7 is fixedly welded to the rear end of the sub-frame 1. A chute 71 is formed on the side wall of the guide rail 7. A sliding shaft 81 is fixedly welded to the front end of the movable frame 8. The sliding shaft 81 is slidably connected with the chute 71. An array of rollers 82 is arranged inside the movable frame 8. The rollers 82 are rotatably connected with the movable frame 8 through rotating shafts. During unloading, the movable frame 8 is pulled backward to make the sliding shaft 81 slide to the rear end of the chute 71. At this time, the movable frame 8 can rotate on the chute 71 through the sliding shaft 81, and the end of the movable frame 8 can be controlled at different heights, so as to facilitate the contact between the end of the movable frame 8 and the handling trolleys at different heights, and it is convenient to move the goods into the handling trolleys through the rollers 82.

[0066] The right end of the movable frame 8 is connected with a support frame 9. Above the support frame 9, there is a connecting seat 91. The connecting seat 91 is rotatably connected with the rear end of the movable frame 8. Symmetrically distributed sliding rods 92 are arranged at the bottom of the connecting seat 91 and near the edge. The sliding rods 92 are slidably connected with the support frame 9. A threaded sleeve 93 is rotatably connected to the support frame 9 near the center. A threaded rod 94 is fixedly welded to the center of the bottom of the connecting seat 91. The threaded rod 94 is threadedly connected with the threaded sleeve 93. The support frame 9 can support the rear end of the movable frame 8. When the threaded sleeve 93 is rotated, relative movement occurs between the threaded sleeve 93 and the threaded rod 94, and the sliding rods 92 slide along the support frame 9, so as to adjust the support height of the connecting seat 91, so as to control the end of the movable frame 8 at different heights.

[0067] In addition, in order to improve the adjustment efficiency of the support height of the connecting seat 91, a hydraulic cylinder structure can be used to replace the transmission structure of the threaded rod 94 and the threaded sleeve 93. When the hydraulic cylinder operates, the support frame 9 can be pushed away from the connecting seat 91 through the piston rod, so as to adjust the height of the end of the movable frame 8.

[0068] A limiting block 911 is fixedly welded on the connecting seat 91 and located at the rear side of the movable frame 8. A sliding seat 84 is installed on the rear side of the movable frame 8. A clamping block 85 is slidably connected to the sliding seat 84. After the support frame 9 rotates to the vertical state, the limiting block 911 contacts the edge of the movable frame 8. Push the clamping block 85 downward so that the bottom end of the clamping block 85 is clamped and matched with the limiting block 911. Under the action of the limiting block 911 and the clamping block 85, the connecting seat 91 can be prevented from rotating on the movable frame 8, improving the stability of the movable frame 8.

[0069] Symmetrically distributed insertion pins 72 are installed on the sub-frame 1 and near the guide rail 7. Symmetrically distributed fixing holes 83 are opened on the side wall of the movable frame 8 and near the rear end. The insertion pins 72 are inserted and matched with the fixing holes 83. When the unloading assembly needs to be stored, rotate the support frame 9 to the horizontal state. Then, push the movable frame 8 completely into the guide rail 7. At this time, the support frame 9 can be clamped and fixed with the rear end of the sub-frame 1. After that, push the insertion pins 72 to be inserted into the fixing holes 83 to further fix the movable frame 8 and prevent the movable frame 8 from sliding on the guide rail 7.

[0070] When unloading, pull the movable frame 8 backward so that the sliding shaft 81 slides to the rearmost end of the sliding groove 71 and pull the movable frame 8 out completely. Then, rotate the support frame 9 to the vertical state so that the limiting block 911 contacts the movable frame 8 and push the clamping block 85 downward so that the clamping block 85 is clamped and matched with the limiting block 911 to limit and fix the connecting seat 91. After that, rotate the threaded sleeve 93 so that the threaded sleeve 93 moves relative to the threaded rod 94 to adjust the support height of the connecting seat 91 and control the end of the movable frame 8 at a suitable height. After that, the goods can be guided and conveyed through the rollers 82 on the movable frame 8, avoiding repeated bending of the staff, reducing the working intensity during unloading, and improving the unloading efficiency.

[0071] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A multifunctional container based on cold chain transportation, characterized in that: include: A sub-frame (1) and a body (2), wherein the body (2) is mounted above the sub-frame (1), the body (2) is composed of an outer frame (21) and a box plate (22), a refrigeration unit (11) is mounted on the sub-frame (1) near the front end, an evaporator unit (12) is mounted on the top of the front plate of the box plate (22), the evaporator unit (12) is connected to the refrigeration unit (11) via a connection box (121), and a fan (13) is mounted on the outside of the evaporator unit (12); An air outlet assembly is arranged inside the body (2) and connected to the fan (13), the air outlet assembly comprising a front flow channel (3), a top flow channel (4) and a side flow channel (5), the top flow channel (4) being arranged at the top of the body (2), the top flow channel (4) being provided with a plurality of evenly distributed top air outlet boxes (41), two groups of the side flow channels (5) being symmetrically arranged at the top of the side plate of the body (2), the side flow channels (5) being provided with a plurality of evenly distributed side air outlet boxes (52); The safety net (6) is evenly arranged in an array inside the compartment (2), and the four corners of the safety net (6) are connected with locking members (62), and the locking members (62) include a sleeve (63), a movable head (64) and a connecting head (65); The unloading assembly is arranged on the auxiliary frame (1) and near the rear end. The unloading assembly comprises a guide rail (7) and a movable frame (8). The movable frame (8) is slidably arranged on the inner side of the guide rail (7). The right end of the movable frame (8) is connected to a support frame (9).

2. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: The box plate (22) is welded and fixed to the outer frame (21), and the box plate (22) includes an extruded plate (221) arranged at the center, and glass fiber reinforced plastic panels (222) are bonded and fixed to the inner and outer sides of the extruded plate (221), and the outer surface of the glass fiber reinforced plastic panel (222) is provided with an outer coating (223), and the inner surface of the glass fiber reinforced plastic panel (222) is provided with an inner coating (224).

3. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: A symmetrically distributed rear door (23) is installed on the rear side of the outer frame (21), a side door (24) is installed on the left side panel of the body (2), a plurality of evenly distributed identification strips (25) are bonded and fixed on the body (2) near the edge, a fender (14) is installed at the bottom of the subframe (1), and guardrails (15) are installed on both the left and right sides of the subframe (1).

4. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: The front flow channel (3) is arranged on both sides of the connection box (121), and the top end is connected to the fan (13); a plurality of evenly distributed air outlet holes (31) are provided on the front flow channel (3); the front end of the top flow channel (4) is connected to the fan (13); a plurality of top air outlet boxes (41) are evenly arranged on the top flow channel (4); a first guide fan (42) is installed on the top flow channel (4) and near each top air outlet box (41); and a plurality of evenly distributed top air outlet holes (43) are provided on the top air outlet box (41).

5. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: The front end of the side flow channel (5) is connected to the fan (13), and a fixing frame (51) is welded and fixed on the side plate of the body (2) near the top end. A plurality of side air outlet boxes (52) are evenly installed on the inner side of the fixing frame (51) and are connected to the side flow channel (5). Four groups of evenly distributed oblique air outlets (53) are provided on the side air outlet boxes (52), and the vertical inclination angles of the four groups of oblique air outlets (53) are 15°, 30°, 45° and 60° respectively.

6. A multifunctional container based on cold chain transportation as claimed in claim 4 or 5, characterized in that: A second guide fan (54) is installed on the side flow channel (5) and close to each side air outlet box (52), and a guide impeller (55) is installed on the inner side of the first guide fan (42) and the second guide fan (54).

7. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: The four corners of the safety net (6) are provided with integrally formed fixing ropes (61); the inner side of the sleeve (63) is slidably connected to a locking block (631); a guide sleeve (632) is provided on the sleeve (63) on a side close to the safety net (6); the end of the fixing rope (61) passes through the guide sleeve (632) and is fixedly connected to the locking block (631); the movable head (64) is located on a side away from the safety net (6) and is rotatably connected to the end of the sleeve (63); an adjusting screw (641) is provided on the movable head (64) and located inside the guide sleeve (632); the adjusting screw (641) passes through the locking block (631) and is threadedly connected to the locking block (631).

8. A multifunctional container based on cold chain transportation as claimed in claim 7, characterized in that: The connecting head (65) is rotatably connected to the movable head (64); a hook (651) is connected to the connecting head (65) via a rope; fixing grooves (26) are provided on the bottom plate of the body (2) and near the left and right edges; fixing rings (511) distributed in an array are welded and fixed on the side plates of the body (2) and located at the bottom of the fixing frame (51); the top end of the safety net (6) is hooked and matched with the fixing ring (511) via the hook (651); and the bottom end of the safety net (6) is hooked and matched with the fixing groove (26) via the hook (651).

9. A multifunctional container based on cold chain transportation as claimed in claim 1, characterized in that: The guide rail (7) is welded and fixed to the rear end of the auxiliary frame (1); a slide groove (71) is provided on the side wall of the guide rail (7); a slide shaft (81) is welded and fixed to the front end of the movable frame (8); the slide shaft (81) is slidably connected to the slide groove (71); rollers (82) distributed in an array are arranged on the inner side of the movable frame (8); the rollers (82) are rotatably connected to the movable frame (8) through a rotating shaft; symmetrically distributed latches (72) are installed on the auxiliary frame (1) near the guide rail (7); symmetrically distributed fixing holes (83) are provided on the side wall of the movable frame (8) near the rear end; the latches (72) and the fixing holes (83) are plugged and matched.

10. A multifunctional container based on cold chain transportation as claimed in claim 9, characterized in that: A connecting seat (91) is provided above the support frame (9), and the connecting seat (91) is rotatably connected to the rear end of the movable frame (8). A symmetrically distributed sliding rod (92) is provided at the bottom and near the edge of the connecting seat (91), and the sliding rod (92) is slidably connected to the support frame (9). A threaded sleeve (93) is rotatably connected on the support frame (9) and near the center. A threaded rod (94) is welded and fixed at the center of the bottom of the connecting seat (91), and the threaded rod (94) and the threaded sleeve (93) are threadedly connected. A limiting block (911) is welded and fixed on the connecting seat (91) and located at the rear side of the movable frame (8). A sliding seat (84) is installed at the rear side of the movable frame (8), and a clamping block (85) is slidably connected to the sliding seat (84), and the bottom end of the clamping block (85) is clamped and matched with the limiting block (911).

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