CN113387058A - Air interchanger of fruit and vegetable long-distance transport box and air interchanging method thereof - Google Patents
Air interchanger of fruit and vegetable long-distance transport box and air interchanging method thereof Download PDFInfo
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- CN113387058A CN113387058A CN202110381446.3A CN202110381446A CN113387058A CN 113387058 A CN113387058 A CN 113387058A CN 202110381446 A CN202110381446 A CN 202110381446A CN 113387058 A CN113387058 A CN 113387058A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
- B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/34—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for fruit, e.g. apples, oranges or tomatoes
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Abstract
The invention relates to the technical field of fruit and vegetable transportation, and discloses a ventilation device of a fruit and vegetable long-distance transport box and a ventilation method of the ventilation device. Through the rotation of pivot and wind wheel, make the repeated air current that blows off of tub shower nozzle on the gasbag II, the magnetic path is at the acceleration and deceleration process motion along with the transportation simultaneously, has strengthened the effect of air current disturbance, makes the air on fruit vegetables surface by the disturbance that does not stop to make the fruit vegetables surface incessantly take a breath, give off the heat that fruit vegetables respiration produced, improved the fresh degree of fruit vegetables, reduced bad fruit rate.
Description
Technical Field
The invention relates to the technical field of fruit and vegetable transportation, in particular to a ventilation device and a ventilation method for a fruit and vegetable long-distance transport box.
Background
The long-distance transport case of fruit vegetables is used in the long-distance transport of fruit vegetables, and the mechanical damage that the fruit vegetables received in the way of transporting will reduce, can guarantee the freshness of fruit vegetables simultaneously under the operation help of various equipment, and the transportation of fruit vegetables usually has rail transport, road transport and air transportation, and road transport wherein shows more nimble and convenient advantage.
In the process of road transportation, fruits and vegetables are stacked in the transportation box, the stacking is very tight in order to reduce the cost of one-time transportation for transporting more fruits and vegetables, and the ventilation groove at the bottom can only carry out cold air circulation outside the goods, so that the speed of reducing the internal temperature is low, the freshness of the fruits and vegetables is influenced, the fruit damage rate of the fruits and vegetables is increased, and the cost of the fruits and vegetables is increased; when the transport case transports on the highway, highway road conditions are complicated, and brake rapidly and promptly speed up all can make the fruit vegetables striking transport case's front and back inner wall when transporting, improved the outside mechanical damage of fruit vegetables, improve the cost of transportation.
Disclosure of Invention
Aiming at the defects of the existing long-distance transport case in the background technology in the using process, the invention provides the air interchanger and the air interchanging method for the fruit and vegetable long-distance transport case, which have the advantages of high-efficiency air interchanging and reduction of mechanical damage of the fruit and vegetable, and solve the technical problems in the background technology.
The invention provides the following technical scheme: a ventilation device of a fruit and vegetable long-distance transport box comprises a box body, wherein a sealing plate is fixedly connected inside the box body, an air bag I is fixedly connected at the top end of the sealing plate, an expansion plate is movably connected at one side of the air bag I, a rope is fixedly connected at one side of the expansion plate, a rotating shaft is connected at one side of the rope, a wind wheel is fixedly connected outside the rotating shaft at an equal angle, a splitter plate is fixedly connected at the top end of the box body, a groove plate is movably sleeved inside the splitter plate, the front surface of the groove plate is meshed with the wind wheel, an air conditioning pipe is fixedly connected at one side of the air bag I, hoses are respectively and fixedly connected at the bottom ends of two sides of the air bag I, an air bag II is fixedly connected at the bottom end of each hose, pipe nozzles are fixedly connected at equal intervals in the middle of the air bag II, a double-layer plate is fixedly connected at the bottom end of the box body, and a through hole is formed in the vertical surface inside the double-layer plate, the inside vertical part of double-deck board swing joint magnetic sheet respectively, the square hole has been seted up to the bottom of magnetic sheet, the bottom swing joint of double-deck board has the magnetic path, the round hole has been seted up to bottom one side of box, and through round hole fixedly connected with bushing, the top middle part fixedly connected with water pocket of flow distribution plate, one side fixedly connected with square bag of water pocket, the top fixedly connected with movable block of square bag, one side swing joint of box has the chamber door.
Preferably, the hose on one side of the air bag I penetrates through the sealing plate and is fixedly connected with the air bag II, and the hose on the other side of the air bag I penetrates through the box body and the box door and is fixedly connected with the air bag II.
Preferably, the shape of expansion plate is half "Y" type that the level was placed, and the distance of the bottom of expansion plate to the closing plate is the quarter of I height of gasbag.
Preferably, the shape of the flow distribution plate is a V shape, and one side of the flow distribution plate is an arc shape facing the inside.
Preferably, the axis of the through hole and the axis of the square hole at the bottom end of the magnetic plate are located on the same horizontal line, and the horizontal distance between the through hole and the square hole is the length of one through hole.
Preferably, the one tenth part of one side of the magnetic plate and the magnetic block are integrally two magnets with magnetic attraction, and the cross section of the magnetic block is the same as the cross section formed by the bottom end of the double-layer plate and the bottom end of the inner part of the box body.
A ventilation method of a ventilation device of a fruit and vegetable long-distance transport box comprises the following steps:
s1, opening the box door, closing the hose, putting the fruit and vegetable frame into the box, enabling the magnetic block to move towards one side of the box body through magnetic attraction, and simultaneously driving the magnetic plate to close the through hole by the box body;
s2, during transportation, the box door is closed, the hose is opened, the rotating rope of the rotating shaft and the wind wheel is influenced by front wind and is wound at the bottom end of the rotating shaft, the telescopic plate is driven to extend out of the extrusion air bag I, cold air in the air bag I is led to the air bag II and is released from the pipe spray head, meanwhile, the wind wheel rotates to drive the groove plate to move towards the interior of the flow distribution plate, wind on the back of the flow distribution plate is simultaneously blown towards the rotating shaft and the wind wheel, wind force on the front and back of the rotating shaft and the wind wheel is balanced, the rotating shaft and the wind wheel rotate in opposite directions, the telescopic plate is contracted, the extruded air bag I is released, the cold air is led into the air bag I from the air conditioning pipe to expand, meanwhile, the wind wheel rotates to drive the groove plate to move towards the exterior of the flow distribution plate, and accordingly the groove plate blocks the back wind of the flow distribution plate, and the rotating shaft and the wind wheel are blown by the front wind again to rotate;
s3, when the box door is accelerated, the magnetic block moves to one side of the box door to drive the magnetic plate to open the through hole, so that water is stored at the bottom end of the double-layer plate, when the box door is decelerated, the magnetic block moves to the other side to close the through hole, the movable block is extruded to expand the water bag, and the water at the bottom end of the double-layer plate is discharged from the inner part of the leakage plate;
and S4, after the transportation is finished, opening the box door, closing the hose, transporting out the fruit and vegetable frame, enabling the magnetic block to be attracted to one side of the box door by the fruit and vegetable frame in a magnetic attraction mode, and closing the magnetic block.
The invention has the following beneficial effects:
1. according to the invention, the rotating shaft and the wind wheel rotate, so that the pipe nozzle on the air bag II repeatedly blows out air flow, and meanwhile, the magnetic block moves along with the acceleration and deceleration process of transportation, so that the air flow disturbance effect is enhanced, the air on the surfaces of the fruits and vegetables is ceaselessly disturbed, the surfaces of the fruits and vegetables are ceaselessly ventilated, heat generated by respiration of the fruits and vegetables is emitted, the freshness of the fruits and vegetables is improved, and the fruit damage rate is reduced.
2. According to the invention, through the elastic deformation of the air bag II, the utilization rate of the internal space is improved during stacking, and the air bag I is used for expanding the air bag II during deceleration and acceleration, so that elastic shock absorption can be provided during emergency deceleration and acceleration, and meanwhile, the extruded air bag II sprays higher-speed airflow from the pipe nozzle, so that the flow of the airflow is enhanced, the mechanical damage to fruits and vegetables is reduced, the fruits and vegetables are more fresh, and the fruit and vegetable cost is reduced.
Drawings
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic top view of the structure of the present invention;
fig. 4 is an enlarged view of a part of the structure of the present invention.
In the figure: 1. a box body; 2. a sealing plate; 3. an air bag I; 4. a retractable plate; 5. a rope; 6. a rotating shaft; 7. a wind wheel; 8. a flow distribution plate; 9. a groove plate; 10. an air conditioning duct; 11. a hose; 12. an air bag II; 13. a pipe nozzle; 14. a double-layer plate; 15. a through hole; 16. a magnetic plate; 17. a magnetic block; 18. a bushing; 19. a water bladder; 20. a square bag; 21. a movable block; 22. and (4) a box door.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a ventilation device for a fruit and vegetable long-distance transport case comprises a case body 1, a sealing plate 2 is fixedly connected inside the case body 1, an air bag i 3 is fixedly connected to the top end of the sealing plate 2, an expansion plate 4 is movably connected to one side of the air bag i 3, a rope 5 is fixedly connected to one side of the expansion plate 4, a rotating shaft 6 is connected to one side of the rope 5, a wind wheel 7 is fixedly connected to the outer side of the rotating shaft 6 at an equal angle, a splitter plate 8 is fixedly connected to the top end of the case body 1, a slot plate 9 is movably sleeved inside the splitter plate 8, the front side of the slot plate 9 is meshed with the wind wheel 7, an air conditioning pipe 10 is fixedly connected to one side of the air bag i 3, hoses 11 are respectively fixedly connected to the bottom ends of the two sides of the air bag i 3, an air bag ii 12 is fixedly connected to the bottom end of the hose 11, a pipe nozzle 13 is fixedly connected to the middle part of the air bag ii 12 at equal intervals, and a double-layer plate 14 is fixedly connected to the bottom end inside the case body 1, through-hole 15 has been seted up to the inside vertical face of double-deck board 14, double-deck board 14's inside vertical part swing joint magnetic sheet 16 respectively, the square hole has been seted up to magnetic sheet 16's bottom, double-deck board 14's bottom swing joint has magnetic path 17, the round hole has been seted up to bottom one side of box 1, and through round hole fixedly connected with bushing 18, flow distribution plate 8's top middle part fixedly connected with water pocket 19, one side fixedly connected with square pocket 20 of water pocket 19, the top fixedly connected with movable block 21 of square pocket 20, one side swing joint of box 1 has chamber door 22, the hose 11 of gasbag I3 one side runs through closing plate 2 and II 12 fixed connection of gasbag, the hose 11 of gasbag I3 opposite side runs through box 1 and chamber door 22 and II 12 fixed connection of gasbag.
Wherein, the shape of expansion plate 4 is half "Y" type that the level was placed, and the bottom of expansion plate 4 apart from the distance of closing plate 2 be the fourth of I3 height of gasbag, and this shape setting can reduce the resistance of extrusion gasbag I3, and the setting of height can make the gas in gasbag I3 extruded more, strengthens the flow strength of air current.
Wherein, flow distribution plate 8's shape is "V" type, and one side shape of flow distribution plate 8 is the arc to inside, can reduce the wind resistance that flow distribution plate 8 received through the drainage effect of flow distribution plate 8 shape, and the cooperation between flow distribution plate 8 and frid 9 reaches the effect that repeated pivot 6 and wind wheel 7 are rotatory.
Wherein, the axis of the through hole 15 and the axis of the square hole at the bottom end of the magnetic plate 16 are positioned on the same horizontal line, the horizontal distance between the through hole 15 and the square hole is the length of the through hole 15, the tenth part of one side of the magnetic plate 16 and the magnetic block 17 are integrally two magnets with attractive magnetism, the cross section shape of the magnetic block 17 is the same as that formed by the bottom end of the double-layer plate 14 and the bottom end inside the box body 1, so that the magnetic plate 16 dynamically follows the magnetic block 17 to move, the through hole 15 is opened and closed, the bottom end of the double-layer plate 14 and the bottom end of the through hole 15 are communicated with each other and are not communicated with the outer side of the bottom end of the box body 1 when the bottom end of the double-layer plate 14 collects water, the inside of the box body 1 and the bottom end of the double-layer plate 14 are not communicated with each other when water is drained, the bottom end of the double-layer plate 14 is communicated with the outer side of the bottom end of the box body 1, and cold air inside the box body 1 is prevented from losing, meanwhile, the effect of disturbing the air in the box body 1 is enhanced by the motion of the magnetic block 17 in cooperation with other devices.
After sudden braking, when the bottom end of the double-layer plate 14 moves towards one side of the inside of the box body 1 at a high speed, the magnetic block 17 can flexibly reduce the speed of the magnetic block 17 through the sealing effect on one side of the magnetic block 17 and the abutting effect of the movable block 21, the inner wall damage caused by the fact that the high-speed magnetic block 17 collides against the box body 1 is avoided, and the service life of the whole device is prolonged.
The water bag 19 is a spherical water bag, that is, a disc with a loose surface before being expanded to its shape without being squeezed by water, and can be tightly attached to the top end of the bushing 18 to seal the top end of the bushing 18 under the pressure of gas inside the case 1.
A ventilation method of a ventilation device of a fruit and vegetable long-distance transport box comprises the following steps:
s1, opening the box door 22, closing the hose 11, putting the fruit and vegetable frame in the box, enabling the magnetic block 17 to move towards one side of the box body 1 through magnetic attraction, and simultaneously driving the magnetic plate 16 to close the through hole 15 through the box body 1;
s2, during transportation, the box door 22 is closed, the hose 11 is opened, the rotating rope 5 of the rotating shaft 6 and the wind wheel 7 is affected by front wind and is wound at the bottom end of the rotating shaft 6, the telescopic plate 4 is driven to extend out to extrude the air bag I3, cold air in the air bag I3 is led to the air bag II 12 and is released from the pipe spray nozzle 13, meanwhile, the wind wheel 7 rotates to drive the groove plate 9 to move towards the inside of the flow distribution plate 8, wind on the back of the flow distribution plate 8 is blown towards the rotating shaft 6 and the wind wheel 7 simultaneously, wind on the front and back of the rotating shaft 6 and the wind wheel 7 is balanced, the rotating shaft 6 and the wind wheel 7 rotate in opposite directions, the telescopic plate 4 is contracted, the extruded air bag I3 is released, the cold air is led into the air bag I3 from the air conditioning pipe 10 to expand, meanwhile, the wind wheel 7 rotates to drive the groove plate 9 to move towards the outside of the flow distribution plate 8, so that the groove plate 9 blocks the back of the flow distribution plate 8, and the rotating shaft 6 and the wind wheel 7 are blown by the front wind again;
s3, when the speed is increased, the magnetic block 17 moves towards one side of the box door 22, the magnetic block 17 drives the magnetic plate 16 to open the through hole 15, so that water is stored at the bottom end of the double-layer plate 14, when the speed is reduced, the magnetic block 17 moves towards the other side, the magnetic plate 16 closes the through hole 15, the movable block 21 is extruded, the water bag 19 is expanded, and water at the bottom end of the double-layer plate 14 is discharged from the inside of the leakage plate 18;
s4, after the transportation is finished, the door 22 is opened, the hose 11 is closed, the fruit and vegetable frame is transported out, the magnetic block 17 is attracted to one side of the door 22 by the magnetic force of the fruit and vegetable frame, and the magnetic plate 16 is closed.
The use method (working principle) of the invention is as follows:
before the fruits and vegetables are placed in the transport box, cold air is introduced into the air bags I3 and II 12 through the air conditioning pipes 10 and is sprayed into the box body 1 through the pipe spray heads 13, so that the temperature in the box body 1 is reduced to the storage temperature of the fruits and vegetables.
When the transport case is put into to the fruit vegetables, rotatory chamber door 22 of opening, thereby the inside hose 11 extension of chamber door 22 is sealed along with opening of chamber door 22 is rotatory, thereby the fruit vegetables are blocked and are promoted to the box 1 in to carry out the stack through the double-layer board 14 of bottom in the fruit vegetables frame, and the bottom magnet of fruit vegetables frame attracts magnetic path 17 to the inside one side motion of box 1, and magnetic path 17 magnetic attraction magnetic path 16, make the square hole of magnetic path 16 be partial to through-hole 15, thereby make through-hole 15 close, after the fruit vegetables frame stack is good, rotatory chamber door 22 of closing, thereby make hose 11 open, and through the ventilation process of hose 11, make II 12 elastic deformation of gasbag on one side of chamber door 22 support with one side of inside fruit vegetables frame.
When the fruits and vegetables are transported on a highway relatively stably, wind can pass through the front and back surfaces of the splitter plate 8, the wind on the front surface of the splitter plate 8 can be blown to the wind wheel 7 along the surface of the splitter plate 8, the wind wheel 7 and the rotating shaft 6 rotate anticlockwise together, the rope 5 is wound at the bottom end of the rotating shaft 6, the expansion plate 4 extends out to extrude the air bag I3, cold air in the air bag I3 is sprayed to the fruits and vegetables from the inside of the air bag I3 through the pipe spray nozzle 13 at high speed, gas around the fruits and vegetables flows at high speed, meanwhile, the rotation of the wind wheel 7 enables the groove plate 9 to be collected into the back surface of the splitter plate 8 from the back surface of the splitter plate 8, after the groove plate 9 enters a part of the splitter plate 8, airflow on the back surface of the splitter plate 8 can be blown to the back surfaces of the rotating shaft 6 and the wind wheel 7, the rotating shaft 6 and the wind wheel 7 stop rotating gradually, and when wind force on the front and the north surfaces of the rotating shaft 6 and the wind wheel 7 are abutted, the rope 5 releases torque force applied to the rotating shaft 6, the rotating shaft 6 and the wind wheel 7 rotate clockwise, the rope 5 is loosened at the bottom end of the rotating shaft 6, the expansion plate 4 is contracted, the extruded air bag I3 is released, sufficient cold air is introduced into the air bag I3 from the air conditioning pipe 10 again, meanwhile, the groove plate 9 is pulled out by the wind wheel 7 in a rotating mode until the wind on the back face of the splitter plate 8 is blocked, the rotating shaft 6 and the wind wheel 7 rotate anticlockwise again due to the wind on the front face of the splitter plate 8, and the working process is repeated all the time.
When the fruit vegetables are transported on the highway with higher speed, magnetic path 17 moves to one side of chamber door 22 at the bottom of double-deck board 14, and when reaching nine tenth magnetic sheet 16's length, can drive magnetic sheet 16 and move to one side of chamber door 22 to make the square hole and the through-hole 15 intercommunication of magnetic sheet 16 bottom, make inside water flow in double-deck board 14's bottom through the square hole of through-hole 15 and magnetic sheet 16 bottom, store in double-deck board 14's bottom.
When fruits and vegetables are transported on a highway in a speed reducing mode, the magnetic blocks 17 move towards one side of the box body 1 at the bottom end of the double-layer plate 14 through inertia, the magnetic plates 16 and the magnetic blocks 17 move in the same direction at one side of the box door 22, the magnetic plates 16 close the through holes 15, the bottom end of the double-layer plate 14 is sealed, the magnetic blocks 17 push water at the bottom end of the double-layer plate 14 to move towards one side of the box body 1, when the magnetic blocks 17 at a certain speed move to one side of the movable blocks 21, the movable blocks 21 can be abutted against the movable blocks 21, the movable blocks 21 move downwards and extrude the square bags 20 to extrude the water in the water bags 19 to the inside of the water bags 19, the water bags 19 expand to expose the edges of the leakage plates 18, the water stored at the bottom end of the double-layer plate 14 flows out of the inside of the leakage plates 18, and the work process of accelerating is repeated when the fruits and vegetables are accelerated again.
When fruits and vegetables are transported out of the transport box, the fruit and vegetable frame moves towards one side of the box door 22, the magnetic block 17 is driven to move towards one side of the box door 22 at the bottom end of the double-layer plate 14, and the magnetic plate 16 closes the through hole 15.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a fruit vegetables long-distance transport case breather, includes box (1), its characterized in that: the air-conditioning box is characterized in that a sealing plate (2) is fixedly connected to the inside of the box body (1), an air bag I (3) is fixedly connected to the top end of the sealing plate (2), an expansion plate (4) is movably connected to one side of the air bag I (3), a rope (5) is fixedly connected to one side of the expansion plate (4), a rotating shaft (6) is connected to one side of the rope (5), a wind wheel (7) is fixedly connected to the outer side of the rotating shaft (6) at an equal angle, a splitter plate (8) is fixedly connected to the top end of the box body (1), a groove plate (9) is movably sleeved inside the splitter plate (8), the front face of the groove plate (9) is meshed with the wind wheel (7), an air-conditioning pipe (10) is fixedly connected to one side of the air bag I (3), hoses (11) are fixedly connected to the bottom ends of the two sides of the air bag I (3) respectively, and an air bag II (12) is fixedly connected to the bottom end of the hose (11), the middle part of the air bag II (12) is fixedly connected with pipe nozzles (13) at equal intervals, the bottom end inside the box body (1) is fixedly connected with a double-layer plate (14), the inner vertical surface of the double-layer plate (14) is provided with a through hole (15), the inner vertical parts of the double-layer plate (14) are respectively movably connected with a magnetic plate (16), the bottom end of the magnetic plate (16) is provided with a square hole, the bottom end of the double-layer plate (14) is movably connected with a magnetic block (17), one side of the bottom end of the box body (1) is provided with a round hole, and is fixedly connected with a bushing plate (18) through a round hole, the middle part of the top end of the flow distribution plate (8) is fixedly connected with a water bag (19), one side fixedly connected with square bag (20) of water pocket (19), the top fixedly connected with movable block (21) of square bag (20), one side swing joint of box (1) has chamber door (22).
2. A fruit and vegetable long-distance transport case breather of claim 1, characterized in that: the hose (11) on one side of the air bag I (3) penetrates through the sealing plate (2) and is fixedly connected with the air bag II (12), and the hose (11) on the other side of the air bag I (3) penetrates through the box body (1) and the box door (22) and is fixedly connected with the air bag II (12).
3. A fruit and vegetable long-distance transport case breather of claim 1, characterized in that: the shape of expansion plate (4) is half "Y" type that the level was placed, and the distance of the bottom of expansion plate (4) apart from closing plate (2) is the fourth of gasbag I (3) height.
4. A fruit and vegetable long-distance transport case breather of claim 1, characterized in that: the shape of flow distribution plate (8) is "V" type, and one side shape of flow distribution plate (8) is inside arc.
5. A fruit and vegetable long-distance transport case breather of claim 1, characterized in that: the axis of the through hole (15) and the axis of the square hole at the bottom end of the magnetic plate (16) are located on the same horizontal line, and the horizontal distance between the through hole (15) and the square hole is the length of one through hole (15).
6. A fruit and vegetable long-distance transport case breather of claim 1, characterized in that: one tenth part of one side of the magnetic plate (16) and the magnetic block (17) are integrally two magnets with attractive magnetism, and the cross section of the magnetic block (17) is the same as that of the bottom end of the double-layer plate (14) and the bottom end inside the box body (1).
7. The air exchange method of the air exchange device for the fruit and vegetable long-distance transport box according to claim 1, characterized by comprising the following steps:
s1, opening a box door (22), closing a hose (11), putting a fruit and vegetable frame into the box, enabling a magnetic block (17) to move to one side of the box body (1) through magnetic attraction, and simultaneously driving the magnetic plate (16) to close the through hole (15) through the box body (1);
s2, during transportation, the box door (22) is closed, the hose (11) is opened, the rotating rope (5) of the rotating shaft (6) and the wind wheel (7) are affected by front wind and is wound at the bottom end of the rotating shaft (6) to drive the expansion plate (4) to extend out and extrude the air bag I (3), cold air in the air bag I (3) is led to the air bag II (12) and is released from the pipe spray nozzle (13), meanwhile, the wind wheel (7) rotates to drive the groove plate (9) to move towards the inner part of the flow distribution plate (8), so that wind on the back of the flow distribution plate (8) is blown to the rotating shaft (6) and the wind wheel (7) at the same time, wind on the front and back of the rotating shaft (6) and the wind wheel (7) rotates towards opposite directions, the expansion plate (4) contracts, the extruded air bag I (3) is released, cold air is introduced from the air conditioning pipe (10) to expand, meanwhile, the wind wheel (7) rotates to drive the groove plate (9) to move towards the outer part of the flow distribution plate (8), so that the groove plate (9) blocks the back wind of the splitter plate (8) and the rotating shaft (6) and the wind wheel (7) are blown by the front wind again to rotate;
s3, when the refrigerator is accelerated, the magnetic block (17) moves towards one side of the refrigerator door (22), the magnetic block (17) drives the magnetic plate (16) to open the through hole (15), so that water is stored at the bottom end of the double-layer plate (14), when the refrigerator is decelerated, the magnetic block (17) moves towards the other side, the magnetic plate (16) closes the through hole (15), the movable block (21) is extruded, the water bag (19) is expanded, and water at the bottom end of the double-layer plate (14) is discharged from the inside of the leakage plate (18);
and S4, after the transportation is finished, opening the box door (22), closing the hose (11), transporting out the fruit and vegetable frame, enabling the magnetic block (17) to be attracted to one side of the box door (22) by the fruit and vegetable frame in a magnetic attraction mode, and closing the magnetic plate (16).
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