Corrosion-proof corn cold-chain transport box

Abstract

The invention relates to the technical field of cold chain transport boxes, and discloses an anti-decay corn cold chain transport box which comprises an outer box body, an outer box cover and a bottom plate, a ventilation fan is arranged in the outer box cover, an inner box body is movably connected to the interior of the outer box body, a protection framework is arranged between the outer box body and the inner box body, and an inner cover plate is arranged outside the inner box body; and a cold insulation pipe is filled between the outer box body and the inner box body. Through cooperative use of a plurality of gas outlet branch pipes and an anti-corrosion mechanism, low-temperature nitrogen flowing into the inner box body is mixed with an anti-corrosion agent, and the flowing low-temperature nitrogen drives the diffused anti-corrosion agent to diffuse in the inner box body, so that the diffusion uniformity of the anti-corrosion agent in the inner box body is effectively ensured; furthermore, the storage effect in the corn transportation process is guaranteed, the corn is further prevented from being corrupted, the protection diversity of the transported corn is further improved, the protection time efficiency of the corn is effectively improved, and therefore the device is suitable for the long-distance transportation process of the corn.

Description

Technical Field

[0001] The invention relates to the technical field of cold chain transport boxes, and in particular to an anti-corruption cold chain transport box for corn. Background Art

[0002] In order to prevent corn from being damaged or spoiled during transportation, cold chain transportation is usually used for corn transportation. However, since corn itself is composed of a central core and outer kernels, it is very easy for the corn kernels to be damaged and spoiled due to excessive stacking during transportation. Therefore, during the cold chain transportation of corn, the corn is usually dispersed into several small cold chain transportation boxes for transportation. Dispersed storage is used to reduce the pressure during corn transportation, and the transportation temperature is lowered to ensure the safety of the corn during transportation.

[0003] In a Chinese patent with patent publication number CN110902152B, a refrigerated box for cold chain transportation is disclosed, including a box body and a cover body connected by a hinge, the upper right side of the box body is fixedly connected to the cover body by a first fixing assembly, the front and rear left and right inner side walls of the box body are longitudinally provided with card slots, a placement frame is carded in the box body, a plurality of groups of placement slots are evenly spaced in the middle of the placement frame, the left and right side walls of the placement frame are connected to card strips that are carded and matched with the card slots through a plurality of groups of shock absorbing assemblies, the shock absorbing assemblies include a first spring connected between the card strip and the placement frame and a first shaft rod sleeved in the first spring, and the card strip is evenly provided with a plurality of groups of clearances that match with the first shaft rod along its longitudinal direction. The first through hole of the first shaft rod is welded on the side wall of the placement frame at one end near the placement frame, and the other end of the first shaft rod passes through and out of the first through hole, and a plurality of groups of buffer components are evenly arranged on the bottom side of the box body, and the buffer component includes a circular groove opened on the bottom side of the box body and a buffer plate connected to the upper side of the circular groove through a second spring; a magnetic sealing ring matching the opening of the upper end of the box body is arranged on the right side of the cover body, and the magnetic sealing ring is divided into a plurality of groups of ice bag grooves of the same size at equal intervals by a partition frame assembly, and the ice bag is separated from the articles by fixing the ice bag on the inner wall of the cover body, and the ice bag is arranged on the cover body, which is beneficial to the sinking of cold air from the ice bag and improves the refrigeration effect on the articles.

[0004] By setting an ice bag on the top of the cover, the internal temperature of the cold chain transport box can be lowered. However, the preservation effect is still improved only by cold air. During the transportation of corn, the factors that affect the spoilage of corn include not only the temperature factor but also the oxygen content factor. When the external corn kernels are damaged, they lack the protection of the epidermis and are easily oxidized by the oxygen in the air even in a low temperature environment, causing the corn to spoil. At the same time, the storage safety of corn during transportation is only guaranteed by a low temperature environment, and the protection conditions for corn are single. Although it can play a certain protective effect during short-distance transportation and can effectively prevent corn from spoiling, it loses its protective effect as the ice bag melts during long-distance transportation, which can easily cause the transported corn to spoil. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an anti-corruption corn cold chain transportation box, which has the advantages of good cold preservation effect, effectively reducing the oxygen content in the storage space, increasing the diversity of corn protection, and improving the cold chain transportation effect.

[0006] To achieve the above object, the present invention provides the following technical solutions: A corruption-proof corn cold chain transport box, comprising an outer box body, an outer box cover and a bottom plate, wherein a ventilation fan is arranged inside the outer box cover, an inner box body is movably connected inside the outer box body, a protective frame is arranged between the outer box body and the inner box body, an inner cover plate is arranged outside the inner box body, a cold-keeping pipe is filled between the outer box body and the inner box body, an air supply refrigeration mechanism is arranged outside the cold-keeping pipe, a connected air outlet shunt pipe is arranged at the end of the cold-keeping pipe, a plurality of air outlet branch pipes are fixedly connected to the outside of the air outlet shunt pipe, the air outlet branch pipes are arranged at the inner bottom of the inner box body, and a separation storage component is arranged inside the inner box body; The top of the bottom plate is provided with a mounting groove plate, the top of the mounting groove plate is fixedly connected with a support plate, the support plate is provided as an inner box bottom component of the inner box body, the support plate is provided with a plurality of external convex support ribs, the air outlet branch pipe is distributed between the plurality of support ribs of the support plate, and the bottom of the air outlet branch pipe is evenly provided with air outlet holes; An anti-corrosion mechanism is arranged outside the outlet branch pipe, and the anti-corrosion mechanism is used to fill the interior of the inner box with an anti-corrosion agent; The anti-corrosion mechanism comprises an air outlet conduit inserted in the support plate, the outside of the air outlet conduit is fixedly connected with an anti-corrosion conduit, and the outside of the anti-corrosion conduit is provided with a storage box.

[0007] Preferably, the space between the outer box and the inner box is filled with a cold-keeping agent, which is stored in a plurality of bags, and the bagged cold-keeping agent is supported between the outer box and the inner box by a protective frame.

[0008] Preferably: the storage box is installed at the bottom of the base plate and the mounting slot plate, the anti-corrosion duct extends downward to the interior of the storage box, the storage box is used to store liquid preservatives, the air outlet duct is plugged into the air outlet hole at the bottom of the air outlet branch pipe, a cotton core strip is arranged inside the anti-corrosion duct, and a narrow-mouth block is clamped at the interface position of the anti-corrosion duct inside the air outlet duct.

[0009] Preferably: the air supply refrigeration mechanism includes a guide pipe, the pipe wall of the guide pipe is fixedly connected with a semiconductor refrigeration plate, the outside of the guide pipe is fixedly connected with an isolation net, the cold preservation pipe is fixedly connected to the air outlet end of the guide pipe, the outside of the guide pipe is provided with a gas storage bottle for providing protective gas, the gas storage bottle is clamped on the top of the mounting groove plate, and the outside of the mounting groove plate is clamped with a fixing strip for the gas storage bottle.

[0010] Preferably, the interior of the guide tube is rotatably connected to a rotating shaft, the exterior of the rotating shaft is fixedly connected to a guide fan, and the guide fan is distributed at the interface between the guide tube and the gas storage cylinder.

[0011] Preferably: a battery assembly is arranged between the bottom plate and the mounting slot plate, a flow guide motor is arranged outside the rotating shaft, the flow guide motor and the battery assembly are electrically connected, and the flow guide motor is used to drive the rotating shaft to rotate.

[0012] Preferably: a plurality of separation storage frames are provided, which are stacked up and down in sequence and placed inside the inner box body; ventilation holes are provided at the bottom of the separation storage frames; the cover curtains are laid on the top of the separation storage frames; lock buckles are fixedly connected on both sides of the separation storage frames; the lock buckles are used to assist in carrying and fixing the cover curtains; an air bag is provided inside the cover curtain; an air injection pipe for supplying air to the air bag is fixedly connected to the outside of the cover curtain; a connecting buckle and a fixing ring are provided on the outside of the air injection pipe; the fixing ring is used to connect to the inner box body.

[0013] Preferably: a diverter plate is arranged on the outside of the cold-keeping tube, the cold-keeping tube and the diverter plate are connected, the diverter plate is attached to the inner wall of the inner box, the diverter plate is provided with a plurality of air injection ports, the connecting buckle of the air injection tube is used for plugging the air injection port, and the air bag inside the cover curtain is connected to the diverter plate through the air injection tube.

[0014] Preferably: the inner cover plate includes a cover plate bracket, the cover plate bracket is filled with thermal insulation cotton, the cover plate bracket is fixedly connected to a plurality of movable sealing plates inside, the movable sealing plates are arranged in a "human" shape, the movable sealing plates are fixedly connected to the cover plate bracket through the top, the bottom of the arcuate side edges on both sides of the movable sealing plates are movably connected to fixed pressure plates, the bottom of the arcuate side edges of any adjacent movable sealing plates are low-pressured on both sides of the top of a fixed pressure plate, a guide groove is opened in the middle of the fixed pressure plate, the fixed pressure plate is fixedly connected to the inside of the cover plate bracket, and the top of the cover plate bracket is fixedly connected to a top mesh plate.

[0015] Preferably: the movable sealing plate adopts two bimetallic plates arranged in a "human" shape and supported by top welding, and an electrical contact is provided between the bottom of any side edge of any one of the movable sealing plates and the matching fixed pressure plate, and the electrical contact is electrically connected to the ventilation fan and the guide motor.

[0016] Beneficial effects of the present invention: 1. The anti-corruption corn cold chain transport box uses a number of air outlet branches and anti-corrosion mechanisms in coordination, so that the low-temperature nitrogen flowing into the inner box body is mixed with a preservative, and the flowing low-temperature nitrogen drives the diffused preservative to diffuse inside the inner box body, thereby effectively ensuring the uniformity of the diffusion of the preservative inside the inner box body, thereby ensuring the storage effect of the corn during transportation, and further avoiding the corruption of the corn. By mixing the diffused preservative into the low-temperature nitrogen, the diversity of protection for the transported corn is further improved, and the protection time of the corn is effectively improved, so that it is suitable for the long-distance transportation of corn.

[0017] 2. The anti-corruption corn cold chain transport box has ice bags and cold-keeping tubes arranged on the outside of the inner box, thereby reducing the interference of the inner box with the stored corn and facilitating the rapid storage and retrieval of the corn. It not only ensures the maintenance of the low-temperature environment inside the inner box, but also improves the storage environment of the inner box and improves the storage and retrieval efficiency of the corn.

[0018] 3. The anti-corruption corn cold chain transport box stores corn in batches by placing corn on top of different separation storage frames and setting up a plurality of stacked separation storage frames, thereby effectively preventing the corn from being damaged by squeezing due to the excessive number of corn stacking layers. A cover curtain is set on the top of the separation storage frame, and the cover curtain on the top of the separation storage frame is fixed by the top pressure of the upper separation storage frame. When the assembly is completed, the airbag is inflated and expanded by inflating the inside of the airbag, and the expanded airbag presses on the top of the corn, and the airbag can be completely attached to the top of the corn, thereby effectively ensuring the stability of the corn inside the separation storage frame during transportation, avoiding damage to the corn due to collision during transportation, and further improving the protection effect of corn transportation.

[0019] 4. The anti-corruption corn cold chain transport box stores corn in batches by setting up a plurality of stacked separation storage frames, thereby effectively preventing the corn from being damaged by squeezing due to the excessive number of stacked layers. A cover curtain is set on the top of the separation storage frame, and the cover curtain on the top of the separation storage frame is fixed by the upper separation storage frame. When the assembly is completed, the airbag is inflated and expanded by inflating the inside of the airbag, and the expanded airbag presses on the top of the stored corn, and the airbag can be completely attached to the top of the corn, thereby effectively ensuring the stability of the corn inside the separation storage frame during transportation, avoiding damage to the corn due to collision during transportation, and further improving the protection effect of corn transportation.

[0020] 5. The anti-corruption corn cold chain transport box, through the use of movable sealing plates, can achieve the effect of automatically adjusting the internal storage environment of the inner box, so that the inner box can continuously maintain a low-temperature and low-oxygen storage environment during transportation, thereby effectively ensuring the transportation safety of corn cold chain transportation. At the same time, by intermittently opening the air supply refrigeration mechanism and the ventilation fan, the effect of saving energy and reducing energy waste is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall appearance of the cold chain transportation of the present invention; Figure 2 This is a schematic diagram of the assembly state of the outer box body and the inner box body of the present invention; Figure 3 This is a schematic diagram of the outer box body, the inner box body and the inner cover plate in a separated state according to the present invention; Figure 4 This is a schematic diagram of the connection between the inner box and the protective frame of the present invention; Figure 5 This is a schematic diagram of the connection between the anti-corrosion component and the gas outlet branch pipe of the present invention; Figure 6 It is a schematic diagram of the anti-corrosion component of the present invention; Figure 7 This is a schematic diagram of the connection between the cold-keeping pipe and the air supply refrigeration mechanism of the present invention; Figure 8 This is a schematic diagram of the superposition state of the separation storage components of the present invention; Fig. 9 It is a schematic diagram of a single separated storage frame and a cover curtain of the present invention; Fig.10 It is a partial cross-sectional schematic diagram of the air supply refrigeration mechanism of the present invention; Fig.11 This is a schematic diagram of a cross-sectional view of the inner cover plate of the present invention; Fig.12 It is a schematic diagram of the closed and opened states of the movable sealing piece sealing box of the present invention.

[0022] In the figure: 1. outer box; 2. outer box cover; 3. bottom plate; 4. inner box; 5. separation storage component; 6. protection frame; 7. inner cover plate; 8. cold-keeping pipe; 9. gas supply refrigeration mechanism; 10. gas storage cylinder; 21. Ventilation fan; 31. Mounting slot plate; 32. Fixing strip; 33. Supporting plate; 34. Anti-corrosion mechanism; 341. Air outlet duct; 342. Anti-corrosion duct; 343. Cotton core strip; 344. Storage box; 345. Narrow mouth block; 51. Separation storage frame; 52. Cover curtain; 53. Lock buckle; 54. Gas injection pipe; 55. Connecting buckle; 56. Fixing ring; 71. Cover plate bracket; 72. Movable sealing sheet; 721. Electrical contact; 73. Fixed pressure plate; 74. Top mesh plate; 81. Diverter strip; 82. Gas injection port; 83. Gas outlet diverter pipe; 84. Gas outlet branch pipe; 91. Guide pipe; 92. Semiconductor cooling plate; 93. Rotating shaft; 94. Guide fan; 95. Isolation net. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0024] See also Figure 1 - Fig.12 , a corn cold chain transport box for preventing corruption, comprising an outer box body 1, an outer box cover 2 and a bottom plate 3, a ventilation fan 21 is arranged inside the outer box cover 2, an inner box body 4 is movably connected inside the outer box body 1, a protective frame 6 is arranged between the outer box body 1 and the inner box body 4, an inner cover plate 7 is arranged outside the inner box body 4, a cold-keeping pipe 8 is filled between the outer box body 1 and the inner box body 4, an air supply refrigeration mechanism 9 is arranged outside the cold-keeping pipe 8, a connected air outlet shunt pipe 83 is arranged at the end of the cold-keeping pipe 8, a plurality of air outlet branch pipes 84 are fixedly connected to the outside of the air outlet shunt pipe 83, the air outlet branch pipe 84 is arranged at the inner bottom of the inner box body 4, and a separation storage component 5 is arranged inside the inner box body 4; The top of the bottom plate 3 is provided with a mounting groove plate 31, the top of the mounting groove plate 31 is fixedly connected with a support plate 33, the support plate 33 is provided as the inner box bottom component of the inner box body 4, the support plate 33 is provided with a plurality of external convex support ribs, the air outlet branch pipe 84 is distributed between the plurality of support ribs of the support plate 33, and the bottom of the air outlet branch pipe 84 is evenly provided with air outlet holes; An anti-corrosion mechanism 34 is disposed outside the outlet branch pipe 84, and the anti-corrosion mechanism 34 is used to fill the interior of the inner box body 4 with an anti-corrosion agent; refer to Figure 5 and Figure 6 The anti-corrosion mechanism 34 includes an air outlet duct 341 inserted into the support plate 33 , an anti-corrosion duct 342 is fixedly connected to the outside of the air outlet duct 341 , and a storage box 344 is arranged on the outside of the anti-corrosion duct 342 .

[0025] It should be noted that the outer box body 1 is made of PU, PP or PE, the inner box body 4 is made of LLDPE, EPP or EPS, the protective frame 6 is made of metal alloy, PP, ABS or POM, and the cold-keeping pipe 8 is made of copper pipe or aluminum pipe.

[0026] The outer box body 1 and the inner box body 4 are detachably installed, and the cold-keeping tube 8 surrounds the outside of the inner box body 4. The cold-keeping tube 8 is supported and stabilized by the protective frame 6. The cold-keeping tube 8 and the protective frame 6 can be fixed by a cable tie, and the cold-keeping tube 8 is arranged on the inner side of the protective frame 6.

[0027] The outer box body 1 and the bottom plate 3 are fixedly connected, the mounting slot plate 31 is located inside the outer box body 1 , the mounting slot plate 31 is detachably mounted on the top of the bottom plate 3 , and the inner box body 4 is located on the top of the mounting slot plate 31 .

[0028] It should be noted that low-temperature nitrogen flows inside the cold-keeping pipe 8, and the low-temperature nitrogen inside the cold-keeping pipe 8 flows into the outlet branch pipe 84 through the outlet branch pipe 83. The outlet branch pipe 84 is evenly distributed on the top of the support plate 33. The outlet branch pipe 84 is located at the bottom of the inner box 4 to release the low-temperature nitrogen, so that the low-temperature nitrogen flows slowly upward from bottom to top inside the inner box 4.

[0029] It should be noted that when the anti-corrosion mechanism 34 releases low-temperature nitrogen from the outlet branch pipe 84 , the low-temperature nitrogen flowing inside the outlet branch pipe 84 drives the anti-corrosion agent inside the anti-corrosion mechanism 34 to diffuse outward, thereby diffusing the anti-corrosion agent inside the inner box 4 .

[0030] Through the coordinated use of a plurality of air outlet branches 84 and an anti-corrosion mechanism 34, the low-temperature nitrogen flowing into the inner box 4 is mixed with a preservative, and the diffused preservative is driven by the flowing low-temperature nitrogen to diffuse inside the inner box 4, thereby effectively ensuring the uniformity of the diffusion of the preservative inside the inner box 4, thereby ensuring the storage effect of the corn during transportation, and further avoiding the corruption of the corn.

[0031] refer to Figure 2 and Figure 4 In an optional embodiment, the space between the outer box 1 and the inner box 4 is filled with a cold-keeping agent, which is stored in a plurality of bags. The bagged cold-keeping agent is supported between the outer box 1 and the inner box 4 by a protective frame 6 .

[0032] It should be noted that the cold preservation agent is an ice bag, which is evenly arranged on the outside of the protective frame 6 by means of cable ties or hooks, so that the ice bags are evenly distributed between the outer box 1 and the inner box 4, and the cold preservation tube 8 is attached to the outside of the ice bag.

[0033] Further, the ice pack can be arranged in a double layer, with the two layers of ice packs sandwiching the cold-keeping tube 8. The spiral cold-keeping tube 8 is wound around between the two layers of ice packs.

[0034] refer to Figure 5 and Figure 6 In an optional embodiment, a storage box 344 is installed at the bottom of the base plate 3 and the mounting slot plate 31, and the anti-corrosion duct 342 extends downward to the interior of the storage box 344. The storage box 344 is used to store liquid preservatives. The air outlet duct 341 is plugged into the air outlet hole at the bottom of the air outlet branch pipe 84. A cotton core strip 343 is arranged inside the anti-corrosion duct 342. A narrow-mouth block 345 is clamped at the interface position of the anti-corrosion duct 342 inside the air outlet duct 341.

[0035] It should be noted that the liquid protective agent stored in the storage box 344 flows to the interface between the air outlet duct 341 and the anti-corrosion duct 342 under the action of the cotton core strip 343. When the low-temperature nitrogen in the air outlet branch pipe 84 flows outward, the low-temperature nitrogen in the air outlet branch pipe 84 enters the air outlet duct 341 through the bottom air outlet hole. When the low-temperature nitrogen in the air outlet duct 341 flows through the outlet of the anti-corrosion duct 342, since the gas flow rate inside the air outlet duct 341 is greater than that inside the anti-corrosion duct 342, based on the Bernoulli principle, the flowing low-temperature nitrogen can drive the preservative inside the anti-corrosion duct 342 to diffuse into the interior of the air outlet branch pipe 341, and finally follow the low-temperature nitrogen into the interior of the inner box 4.

[0036] refer to Figure 6 Furthermore, a narrow mouth block 345 is clamped inside the outlet branch pipe 341. When the low-temperature nitrogen passes through the narrow mouth block 345, its flow cross-section becomes narrower, so the low-temperature nitrogen flow rate in the narrow mouth block 345 area increases, thereby increasing the pressure difference at the interface position of the anti-corrosion catheter 342, and then improving the diffusion effect of the preservative inside the anti-corrosion catheter 342.

[0037] refer to Figure 7 and Fig.10In an optional embodiment, the air supply refrigeration mechanism 9 includes a guide pipe 91, a semiconductor refrigeration plate 92 is fixedly connected to the pipe wall of the guide pipe 91, an isolation net 95 is fixedly connected to the outside of the guide pipe 91, a cold preservation pipe 8 is fixedly connected to the gas outlet end of the guide pipe 91, and a gas storage bottle 10 for providing protective gas is arranged on the outside of the guide pipe 91. The gas storage bottle 10 is clamped on the top of the mounting groove plate 31, and a fixing pressure strip 32 for the gas storage bottle 10 is clamped on the outside of the mounting groove plate 31.

[0038] Among them, an electromagnetic gas valve is arranged between the flow guide pipe 91 and the cold preservation pipe 8, and the electromagnetic gas valve is used to adjust the gas pressure value of the cold preservation pipe 8.

[0039] The interior of the flow guide tube 91 is rotatably connected to a rotating shaft 93 , and the exterior of the rotating shaft 93 is fixedly connected to a flow guide fan 94 , which is distributed at the interface between the flow guide tube 91 and the gas storage cylinder 10 .

[0040] It should be noted that nitrogen is stored inside the gas cylinder 10, and at least one gas cylinder 10 is installed inside the mounting groove plate 31. At least one semiconductor refrigeration sheet 92 is arranged outside the flow guide tube 91. The cooling surface of the semiconductor refrigeration sheet 92 faces the inner side of the flow guide tube 91, and the heating surface of the semiconductor refrigeration sheet 92 is located outside the flow guide tube 91. The isolation net 95 is connected to the outside of the heating surface of the semiconductor refrigeration sheet 92 to avoid direct contact with the heating surface of the semiconductor refrigeration sheet 92 during installation or maintenance, thereby causing damage, and at the same time, to prevent the heating surface of the semiconductor refrigeration sheet 92 from damaging the cold chain transport box.

[0041] Furthermore, the isolation net 95 and the flow guide pipe 91 are located between the outer box body 1 and the inner box body 4. An independent cavity is provided inside the outer box body 1. The flow guide pipe 91 is installed in the independent cavity. The gas storage cylinder 10 extends into the independent cavity and is installed in the flow guide pipe 91.

[0042] The nitrogen inside the gas cylinder 10 flows into the cold-keeping tube 8 through the guide tube 91, and the nitrogen flowing through the guide tube 91 is cooled by the semiconductor refrigeration plate 92 to form low-temperature nitrogen, which passes through the cold-keeping tube 8 to cool the interior of the outer box 1 as a whole.

[0043] refer to Figure 7 In an optional embodiment, a battery assembly is arranged between the base plate 3 and the mounting slot plate 31, and a guide motor is arranged outside the rotating shaft 93. The guide motor and the battery assembly are electrically connected, and the guide motor is used to drive the rotating shaft 93 to rotate.

[0044] The battery assembly serves as the power supply system of the cold chain transport box and is installed from the bottom of the base plate 3 into the bottom of the mounting slot plate 31 .

[0045] refer to Figure 8 and Fig. 9In an optional embodiment, a plurality of separation storage frames 51 are provided, which are stacked up and down in sequence and placed inside the inner box body 4. A ventilation hole is provided at the bottom of the separation storage frame 51, and a cover curtain 52 is laid on the top of the separation storage frame 51. Lock buckles 53 are fixedly connected to both sides of the separation storage frame 51. The lock buckles 53 are used to assist in carrying and fixing the cover curtain 52. An air bag is provided inside the cover curtain 52, and an air injection pipe 54 for supplying air to the air bag is fixedly connected to the outside of the cover curtain 52. A connecting buckle 55 and a fixing ring 56 are provided on the outside of the air injection pipe 54, and the fixing ring 56 is used to connect to the inner box body 4.

[0046] It should be noted that when transporting corn, the corn is placed in batches on top of different separation storage frames 51. By setting up a plurality of stacked separation storage frames 51, the corn is stored in batches, thereby effectively avoiding the corn from being damaged by squeezing due to the excessive number of corn stacking layers. A cover curtain 52 is set on the top of the separation storage frame 51. The cover curtain 52 on the top of the separation storage frame 51 is fixed by pressing against the upper layer of the separation storage frame 51. When the assembly is completed, the airbag inside the cover curtain 52 is inflated by inflating the airbag, and the inflated airbag presses against the top of the corn, and the airbag can be completely attached to the top of the corn, thereby effectively ensuring the stability of the corn inside the separation storage frame 51 during transportation, avoiding damage to the corn due to collision during transportation, and further improving the protection effect of corn transportation.

[0047] refer to Figure 7 In an optional embodiment, a diverter strip 81 is provided on the outside of the cold preservation tube 8, the cold preservation tube 8 and the diverter strip 81 are connected, the diverter strip 81 is attached to the inner wall of the inner box body 4, and the diverter strip 81 is provided with a plurality of air injection ports 82. The connecting buckle 55 of the air injection tube 54 is used to plug the air injection port 82, and the air bag inside the cover curtain 52 is connected to the diverter strip 81 through the air injection tube 54.

[0048] It should be noted that when the airbag is inflated, the low-temperature nitrogen inside the cold preservation tube 8 flows into the inside of the diverter plate 81, and the low-temperature nitrogen inside the diverter plate 81 is filled into the airbag inside the cover curtain 52 through the injection port 82, the connecting buckle 55 and the injection pipe 54, and the airbag is filled with low-temperature nitrogen, which further ensures the low-temperature environment during the transportation of corn, ensures the cold chain transportation effect of corn, effectively plays an anti-corrosion effect, and ensures the freshness of the corn during transportation.

[0049] refer to Fig.11 and Fig.12In an optional embodiment, the inner cover plate 7 includes a cover plate bracket 71, the interior of the cover plate bracket 71 is filled with thermal insulation cotton, a plurality of movable sealing sheets 72 are fixedly connected to the interior of the cover plate bracket 71, the movable sealing sheets 72 are arranged in a "human" shape, the movable sealing sheets 72 are fixedly connected to the cover plate bracket 71 through the top, and the bottom of the arc-shaped side edges on both sides of the movable sealing sheet 72 are movably connected to the fixed pressure plate 73, and the bottom of the arc-shaped side edges of any adjacent movable sealing sheets 72 are low-pressured on both sides of the top of a fixed pressure plate 73, a guide groove is opened in the middle of the fixed pressure plate 73, the fixed pressure plate 73 is fixedly connected to the interior of the cover plate bracket 71, and the top of the cover plate bracket 71 is fixedly connected to the top mesh plate 74.

[0050] Among them, the movable sealing plate 72 adopts two bimetallic plates arranged in a "human" shape and supported by top welding. An electrical contact 721 is provided between any side bottom of any movable sealing plate 72 and the matching fixed pressure plate 73. The electrical contact 721 is electrically connected to the ventilation fan 21, the electromagnetic air valve and the guide motor.

[0051] It should be noted that, under low temperature conditions, the two curved sides of the movable sealing sheet 72 abut against the fixed pressure plate 73, thereby sealing the internal space of the inner box 4. When the temperature rises, the bimetallic strips on both sides of the movable sealing sheet 72 warp upward (refer to Fig.12 ).

[0052] Furthermore, sealing strips are provided at the bottom of the arc-shaped sides of the movable sealing sheet 72 to improve the sealing performance when the movable sealing sheet 72 and the fixed pressure plate 73 are in contact.

[0053] Furthermore, when the arc-shaped sides of the movable sealing sheet 72 press against the fixed pressure plate 73, the electrical contacts 721 are in contact, and the ventilation fan 21 and the guide motor are closed. When the arc-shaped sides of the movable sealing sheet 72 press against the fixed pressure plate 73, the electrical contacts 721 are released from contact, and the ventilation fan 21, the electromagnetic valve and the guide motor are turned on.

[0054] The working process of the above cold chain transport box is as follows: Place the corn to be transported inside the separation storage frame 51. When all the separation storage frames 51 have completed loading the corn, lay the cover curtain 52 on the outside of the separation storage frame 51, and tie the cover curtain 52 to the lock buckle 53 through a strap to complete the assembly of a cover curtain 52 and a separation storage frame 51. When all the separation storage frames 51 have completed assembly, the separation storage frame 51 can be lifted by the lock buckle 53, and several assembled separation storage frames 51 are stacked and placed in the inner box body 4 in sequence. When placing a separation storage frame 51, connect the connecting buckle 55 and the air injection port 82, and fix them through the fixing ring 56 to ensure the stability of the connection between the air injection port 82 and the connecting buckle 55.

[0055] And when all the separated storage frames 51 are placed inside the inner box body 4, the inner cover plate 7 and the outer box cover 2 are closed in sequence to complete the assembly of the cold chain transport box.

[0056] When the cold chain transport box is assembled, since the temperature inside the cold chain transport box is relatively high at this time, the movable sealing piece 72 is in the open state, the ventilation fan 21 and the guide motor are in the open state, and the nitrogen inside the gas cylinder 10 enters the cold preservation tube 8 through the guide tube 91, and the guide motor drives the internal shaft 93 of the guide tube 91 to rotate, and the shaft 93 drives the guide fan 94 to rotate. During the rotation process, the guide fan 94 makes the nitrogen flow in the guide tube 91 in a ring state, and because the guide tube 91 is electromagnetically The gas flow rate of the gas flowing into the cold preservation tube 8 through the air valve is controlled by the electromagnetic air valve, and the nitrogen flow rate is limited. Therefore, under the action of the guide fan 94, the nitrogen inside the guide tube 91 flows along the inner wall of the guide tube 91 to the tail of the guide tube 91. At the same time, under the action of the guide fan 94, the gas flows along the axis of the guide tube 91 to the head. The cold preservation tube 8 is installed at the head of the guide tube 91, thereby effectively ensuring the cooling effect of the semiconductor refrigeration plate 92 on the nitrogen inside the guide tube 91.

[0057] When the cooled nitrogen enters the cold-keeping tube 8 through the electromagnetic valve, it flows in the outer layer of the inner box 4 through the cold-keeping tube 8. The cold-keeping tube 8 not only effectively reduces the melting speed of the ice bag, but also reduces the temperature of the outer layer of the inner box 4, thereby improving the effect of maintaining the low-temperature environment inside the inner box 4. The ice bag and the cold-keeping tube 8 are both arranged on the outside of the inner box 4, thereby reducing the interference of the inner box 4 with the storage of corn, facilitating the rapid storage and retrieval of corn, not only ensuring the effect of maintaining the low-temperature environment inside the inner box 4, but also improving the storage environment of the inner box 4 and improving the storage and retrieval efficiency of corn.

[0058] At the same time, the low-temperature nitrogen inside the cold preservation tube 8 flows into the gas outlet shunt pipe 83, and the low-temperature nitrogen flows into a plurality of gas outlet branch pipes 84 through the gas outlet shunt pipe 83. The low-temperature nitrogen slowly flows into the inner bottom of the inner box body 4 through the plurality of gas outlet branch pipes 84, and slowly flows upward along the inner bottom of the inner box body 4. During the upward flow of the low-temperature nitrogen, the room-temperature air inside the inner box body 4 will be squeezed out, and the room-temperature air containing oxygen will be gradually discharged from the inner box body 4 by the low-temperature nitrogen, thereby effectively reducing the oxygen content inside the inner box body 4, so that the interior of the inner box body 4 is in a low-temperature and low-oxygen environment, thereby further improving the storage environment of the corn, further improving the preservation effect of the corn, and effectively preventing the corn from spoiling during transportation, thereby improving the safety of the cold chain transportation of corn.

[0059] When the low-temperature nitrogen inside the outlet branch pipe 84 flows outward, the low-temperature nitrogen inside the outlet branch pipe 84 enters the outlet duct 341 through the bottom outlet hole. The low-temperature nitrogen flowing inside the outlet duct 341 drives the preservative inside the anti-corrosion duct 342 to diffuse into the interior of the outlet branch pipe 341, and finally follows the low-temperature nitrogen into the interior of the inner box 4.

[0060] Part of the low-temperature nitrogen in the cold preservation tube 8 is inflated into the airbag through the diversion strip 81 and the air injection tube 54, and the airbag inside the cover curtain 52 is inflated and expanded. The inflated airbag presses on the top of the stored corn, and the airbag can completely fit on the top of the corn, thereby effectively ensuring the stability of the corn inside the separation storage frame 51 during transportation.

[0061] When the low-temperature nitrogen passes through the inner cover plate 7, the low-temperature nitrogen contacts the movable sealing sheet 72, and the movable sealing sheet 72 contacts the fixed pressure plate 73 under the low-temperature environment to complete the sealing of the inner box 4. A sealed low-temperature and low-oxygen environment is formed inside the inner box 4, thereby increasing the maintenance time of the low-temperature and low-oxygen environment of the inner box 4, and when the internal temperature rises, the movable sealing sheet 72 warps upward, so that the electrical contact 721 is disconnected, and the ventilation fan 21, the electromagnetic valve and the guide motor are turned on, thereby re-introducing the low-temperature nitrogen, so that the low-temperature and low-oxygen storage environment inside the inner box 4 is restored.

[0062] By using the movable sealing sheet 72, the cold chain transport box can automatically adjust the internal storage environment of the inner box 4, so that the inner box 4 can continuously maintain a low-temperature and low-oxygen storage environment during transportation, thereby effectively ensuring the transportation safety of corn cold chain transportation. At the same time, by intermittently opening the air supply refrigeration mechanism 9 and the ventilation fan 21, the effect of saving energy and reducing energy waste is achieved.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corn cold chain transport box for preventing corruption, comprising an outer box body (1), an outer box cover (2) and a bottom plate (3), wherein the outer box body (1) and the outer box cover (2) are both provided with supporting protrusions on the outside, and the outer box cover (2) is provided with a ventilation fan (21) on the inside, characterized in that: The inner box (4) is movably connected to the inner box (4) inside the outer box (1), a protective frame (6) is provided between the outer box (1) and the inner box (4), an inner cover plate (7) is provided outside the inner box (4), a cold-keeping pipe (8) is filled between the outer box (1) and the inner box (4), an air supply refrigeration mechanism (9) is provided outside the cold-keeping pipe (8), a connected air outlet shunt pipe (83) is provided at the end of the cold-keeping pipe (8), a plurality of air outlet branch pipes (84) are fixedly connected to the outside of the air outlet shunt pipe (83), and the air outlet branch pipes (84) are provided at the inner bottom of the inner box (4), and a separation storage assembly (5) is provided inside the inner box (4); The top of the bottom plate (3) is provided with a mounting groove plate (31), the top of the mounting groove plate (31) is fixedly connected with a support plate (33), the support plate (33) is provided as an inner box bottom component of the inner box body (4), the support plate (33) is provided with a plurality of externally protruding support ribs, the air outlet branch pipe (84) is distributed between the plurality of support ribs of the support plate (33), and the bottom of the air outlet branch pipe (84) is evenly provided with air outlet holes; An anti-corrosion mechanism (34) is disposed outside the gas outlet branch pipe (84), and the anti-corrosion mechanism (34) is used to fill an anti-corrosion agent into the interior of the inner box (4); The anti-corrosion mechanism (34) comprises an air outlet duct (341) inserted into the interior of the support plate (33); the exterior of the air outlet duct (341) is fixedly connected to an anti-corrosion duct (342); and a storage box (344) is disposed on the exterior of the anti-corrosion duct (342).

2. The anti-corruption corn cold chain transport box according to claim 1, characterized in that: A cold-keeping agent is filled between the outer box (1) and the inner box (4), and the cold-keeping agent is stored in a plurality of bags. The bagged cold-keeping agent is supported between the outer box (1) and the inner box (4) by a protective frame (6).

3. The anti-corruption corn cold chain transport box according to claim 1, characterized in that: The storage box (344) is installed at the bottom of the bottom plate (3) and the mounting slot plate (31); the anti-corrosion conduit (342) extends downward to the interior of the storage box (344); the storage box (344) is used to store liquid preservatives; the air outlet conduit (341) is plugged into the air outlet hole at the bottom of the air outlet branch pipe (84); a cotton core strip (343) is provided inside the anti-corrosion conduit (342); and a narrow stopper (345) is clamped at the interface position of the anti-corrosion conduit (342) inside the air outlet conduit (341).

4. The anti-corruption corn cold chain transport box according to claim 3, characterized in that: The air supply refrigeration mechanism (9) comprises a flow guide pipe (91), a tube wall of the flow guide pipe (91) is fixedly connected to a semiconductor refrigeration plate (92), the outside of the flow guide pipe (91) is fixedly connected to an isolation net (95), the cold preservation pipe (8) is fixedly connected to the gas outlet end of the flow guide pipe (91), the outside of the flow guide pipe (91) is provided with a gas storage bottle (10) for providing protective gas, the gas storage bottle (10) is clamped to the top of the mounting groove plate (31), and the outside of the mounting groove plate (31) is clamped to a fixing pressure strip (32) for the gas storage bottle (10).

5. The anti-corruption corn cold chain transport box according to claim 4, characterized in that: The interior of the flow guide tube (91) is rotatably connected to a rotating shaft (93), and the exterior of the rotating shaft (93) is fixedly connected to a flow guide fan (94), which is distributed at the interface between the flow guide tube (91) and the gas storage cylinder (10).

6. The anti-corruption corn cold chain transport box according to claim 5, characterized in that: A battery assembly is arranged between the bottom plate (3) and the mounting slot plate (31), and a flow guide motor is arranged outside the rotating shaft (93). The flow guide motor and the battery assembly are electrically connected, and the flow guide motor is used to drive the rotating shaft (93) to rotate.

7. The anti-corruption corn cold chain transport box according to claim 1, characterized in that: The separation storage assembly (5) comprises a separation storage frame (51) and a cover curtain (52). A plurality of separation storage frames (51) are provided, which are stacked up and down in sequence and placed inside the inner box (4). A ventilation hole is provided at the bottom of the separation storage frame (51). The cover curtain (52) is laid on the top of the separation storage frame (51). Lock buckles (53) are fixedly connected to both sides of the separation storage frame (51). The lock buckles (53) are used to assist in carrying and fixing the cover curtain (52). An air bag is provided inside the cover curtain (52). An air injection pipe (54) for supplying air to the air bag is fixedly connected to the outside of the cover curtain (52). A connecting buckle (55) and a fixing ring (56) are provided on the outside of the air injection pipe (54). The fixing ring (56) is used to connect to the inner box (4).

8. The anti-corruption corn cold chain transport box according to claim 7, characterized in that: A diversion strip (81) is arranged outside the cold-keeping tube (8), the cold-keeping tube (8) and the diversion strip (81) are connected, the diversion strip (81) is attached to the inner wall of the inner box (4), the diversion strip (81) is provided with a plurality of air injection ports (82), the connecting buckle (55) of the air injection tube (54) is used for plugging the air injection port (82), and the air bag inside the cover curtain (52) is connected to the diversion strip (81) through the air injection tube (54).

9. The anti-corruption corn cold chain transport box according to claim 6, characterized in that: The inner cover plate (7) comprises a cover plate bracket (71), the interior of the cover plate bracket (71) is filled with heat-insulating cotton, a plurality of movable sealing sheets (72) are fixedly connected to the interior of the cover plate bracket (71), the movable sealing sheets (72) are arranged in a "human" shape, the movable sealing sheets (72) are fixedly connected to the cover plate bracket (71) through the top, the bottom of the arcuate side edges on both sides of the movable sealing sheet (72) are movably connected to a fixed pressure plate (73), the bottom of the arcuate side edges of any adjacent movable sealing sheets (72) are pressed against the top two sides of a fixed pressure plate (73), a guide groove is provided in the middle of the fixed pressure plate (73), the fixed pressure plate (73) is fixedly connected to the interior of the cover plate bracket (71), and the top of the cover plate bracket (71) is fixedly connected to a top mesh plate (74).

10. The anti-corruption corn cold chain transport box according to claim 9, characterized in that: The movable sealing sheet (72) is formed of two bimetallic sheets arranged in a herringbone shape and supported by top welding. An electrical contact (721) is provided between the bottom of any side edge of any movable sealing sheet (72) and an adapted fixed pressure plate (73). The electrical contact (721) is electrically connected to the ventilation fan (21) and the guide motor.

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