Small berry pre-cooling storage

Abstract

The invention discloses a small berry pre-cooling storage, which relates to the technical field of fruit and vegetable pre-cooling, and comprises a pre-cooling storage room which is integrally of a hollow cuboid structure, and one side wall of the pre-cooling storage room is provided with a storage door capable of being opened and closed; the multiple precooling air return bins are arranged along the inner wall of the rear side of the precooling storage room at equal intervals, precooling openings communicating with the precooling storage room are formed in the front end faces of the precooling air return bins, and precooling trays fully loaded with the small berries are placed in the precooling storage room and right face the precooling openings; the single-side air outlet air cooler is arranged at the top of the pre-cooling air return bin, a port of the air inlet end of the single-side air outlet air cooler faces the back face of the pre-cooling house, and a port of the air outlet end of the single-side air outlet air cooler faces the front face of the pre-cooling house. The small berries can be rapidly cooled after entering the refrigeration storage, the risk of quality decline in the initial storage stage is reduced, air circulation is reasonably designed, efficient air return is achieved, it is ensured that the temperature in the refrigeration storage is evenly distributed, part of the small berries are prevented from going bad and decaying due to the poor local environment, and the overall storage quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable precooling, in particular to a small berry precooling store. Background Art

[0002] After being picked, small berries carry a lot of field heat, which accelerates their respiration. Mechanical damage during the harvesting process will further enhance respiration, releasing a lot of respiratory heat, causing the temperature of the small berries to rise, thus accelerating the decline in quality and decay and aging. Therefore, precooling small berries after picking and bringing them to low temperatures before storage or circulation is the key to maintaining their freshness and nutritional value.

[0003] Fig.10 This is a structural diagram of a pressure differential precooling device for small berries in the prior art. The device has the following defects in actual use:

[0004] 1. Since the device is a box-type structure, the operator needs to put the stacked small berries into the precooling box during precooling. The box-type structure has a certain depth and height, and it is inconvenient to put in and take out the small berries;

[0005] 2. When there are fewer small berries, there is more space above the small berries. In this case, most of the cold air will pass over the small berries, and relatively less cold air will actually contact the small berries for heat exchange. This greatly weakens the pre-cooling effect, making it impossible to quickly and effectively reduce the temperature of the small berries, thus affecting their freshness and quality. In addition, since a large amount of cold air is wasted without sufficient contact with the small berries, in order to achieve the expected pre-cooling effect, the pre-cooling device needs to run longer and consume more energy, increasing the energy consumption cost in the pre-cooling process.

[0006] 3. The cost of a single pre-cooling device is high and the pre-cooling space is limited, which makes it difficult to meet the company's mass pre-cooling needs. Adding pre-cooling devices will increase the pre-cooling cost and reduce the company's economic benefits.

[0007] In view of this, this application is hereby filed. Summary of the invention

[0008] The object of the present invention is to provide a small berry pre-cooling store to solve the problems raised in the above-mentioned background technology.

[0009] In order to solve the above technical problems, the present invention provides a small berry pre-cooling warehouse, comprising:

[0010] The pre-cooling warehouse is a hollow rectangular structure with an openable and closable door on one side wall.

[0011] A plurality of precooling return air bins are arranged at equal distances along the inner wall of the rear side of the precooling warehouse, and a precooling opening connected to the precooling warehouse is arranged on the front face of the precooling return air bin, and a precooling tray fully loaded with small berries is placed inside the precooling warehouse and facing the precooling opening;

[0012] The single-side air outlet cooling fan is installed on the top of the pre-cooling return air bin, with its air inlet port facing the back of the pre-cooling warehouse and its air outlet port facing the front of the pre-cooling warehouse;

[0013] The differential pressure precooling fan is arranged inside the precooling return air bin, with the port at its air inlet facing the precooling opening and the port at its air outlet facing the top surface of the precooling warehouse;

[0014] The pre-cooling roller shutter is arranged on the front end surface of the pre-cooling return air bin, and its length and width are both greater than the length and width of the pre-cooling opening.

[0015] Furthermore, the pre-cooling return air bin comprises

[0016] A plurality of side panels are extended from the rear side wall of the pre-cooling room to the interior of the pre-cooling room and are perpendicular to the rear side wall of the pre-cooling room;

[0017] A top plate connected to the tops of the two adjacent side plates, and an air outlet end of the differential pressure precooling fan passes through the top plate;

[0018] The end panel is connected to the front parts of the two adjacent side panels, and the precooling opening is opened on the end panel.

[0019] Furthermore, a galvanized wire mesh is arranged inside the end panel, and the galvanized wire mesh is detachably installed inside the pre-cooling opening, and the size of the galvanized wire mesh is adapted to the pre-cooling opening.

[0020] Furthermore, a steel bracket is installed inside the pre-cooling return air bin, and the differential pressure pre-cooling fan is installed on the top of the steel bracket.

[0021] Furthermore, the pre-cooling roller blind is composed of a sealing cloth and a cross bar, the cross bar is fixed to the outer surface of the sealing cloth and is arranged along the width direction of the sealing cloth, and the length of the cross bar is longer than the width of the sealing cloth.

[0022] Furthermore, it also includes a winding assembly arranged at the front end of the pre-cooling return air bin for winding up the pre-cooling roller blind, the winding assembly includes

[0023] The shell is connected to the front end of the pre-cooling return air bin, and both side walls in the length direction are connected to blocking plates;

[0024] A winding roller is rotatably mounted inside the housing, and the pre-cooling roller curtain is wound around the winding roller;

[0025] The driving motor is installed on one side of the blocking plate, and the driving end of the driving motor is connected to one end of the winding roller.

[0026] Furthermore, a guide roller is rotatably installed inside the shell, the guide roller is located obliquely below the winding roller, and the pre-cooling roller curtain is mounted on the guide roller.

[0027] Furthermore, the precooling tray comprises

[0028] The load-bearing plate is a rectangular plate structure, and a support plate extending vertically downward is installed on the bottom surface of the load-bearing plate, and the bottom surface of the support plate is fixedly connected to the bottom plate;

[0029] A through opening is formed between the carrier plate and the through opening and is arranged along the length direction and the width direction of the carrier plate;

[0030] The lower rotating plate is rotatably mounted on the bottom surface of the bearing plate through a torsion shaft and corresponds to the through opening;

[0031] The upper rotating plate is rotatably mounted on the top surface of the bottom plate through a torque shaft and corresponds to the lower rotating plate;

[0032] The sealing lips are connected to the top surfaces of the lower rotating plate and the upper rotating plate, and the sealing lips installed thereon are in contact with each other when the lower rotating plate and the upper rotating plate are in an initial state.

[0033] Furthermore, the torsion shaft comprises

[0034] A rotating shaft is installed in the length direction of the lower rotating plate and the upper rotating plate, and its end is fixedly connected to the inner side wall of the through opening;

[0035] The torsion spring is sleeved on the outer wall of the rotating shaft, one end of which is fixedly connected to the side walls of the lower rotating plate and the upper rotating plate, and the other end of which is fixedly connected to the inner wall of the through opening.

[0036] Furthermore, it also includes a sealing structure arranged on the inner wall of the pre-cooling return air bin for sealing the pre-cooling opening, the sealing structure includes

[0037] A straight slot is provided on the inner wall of the side plate and is provided along the extension direction of the side plate, and a sliding bar is slidably installed inside the slot;

[0038] A flexible folding curtain that can slide along the inner wall of the side panels and end panels, and one side of it is connected to the sliding strip;

[0039] A guide groove is concavely arranged on the outer wall of the lower part of the end panel, and a guide block is slidably installed inside the guide groove, and one end of the flexible folding curtain away from the sliding bar is connected to the flexible folding curtain;

[0040] The baffle is fixed on the front side of the end panel, and a telescopic rod is fixedly connected to the baffle, and the other end of the telescopic rod is connected to the guide block;

[0041] The support spring is sleeved on the outside of the telescopic rod, one end of which is connected to the guide block, and the other end of which is connected to the guide block.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. The present invention, through the coordinated use of a single-side air outlet cooling fan and a differential pressure precooling fan arranged in a precooling room, can form a good air circulation in the precooling room, accelerate the heat exchange between small berries and cold air, improve the precooling efficiency, and quickly reduce the temperature of the small berries to maintain their freshness and nutritional value. At the same time, the traditional box structure is changed to make it more convenient and quick to put in and take out the small berries. In actual operation, the operator does not need to laboriously put the stacked small berries into the narrow precooling box, nor does he need to take out the small berries with difficulty after precooling, which greatly improves the work efficiency.

[0044] 2. The present invention can flexibly adjust the precooling roller shutter arranged on the precooling return air bin according to actual needs. When there are fewer small berries, the precooling roller shutter can be lowered to block the gap between the precooling tray carrying a small amount of small berries and the top surface of the precooling opening, and cover the top surface of the precooling tray of small berries, thereby reducing the precooling space and preventing most of the cold air flow from passing over the small berries, thereby enhancing the precooling effect and reducing the precooling energy consumption. It can better adapt to the precooling needs of different numbers of small berries, improve energy utilization efficiency, and reduce operating costs.

[0045] 3. In the present invention, the flexible folding curtain can slide and unfold along the inner wall of the end panel, so as to block the gap between the side wall of the pre-cooling tray and the outermost side wall of the galvanized wire mesh, further ensuring the return air effect and ensuring that the cold air can fully act on the small berries fully loaded on the pre-cooling tray.

[0046] 4. The present invention, by arranging a plurality of pre-cooling return air bins in the pre-cooling warehouse, can turn on the single-sided air outlet cold air fan above the corresponding pre-cooling return air bin according to the placement position of the small berries when in use, thereby avoiding unnecessary operation of the cold air fan, thereby effectively reducing the pre-cooling energy consumption. This precise cooling method can minimize energy waste while ensuring the pre-cooling effect, and meets the requirements of energy conservation and environmental protection. When the pre-cooling warehouse is in use, the differential pressure pre-cooling fan draws the air in the pre-cooling return air bin, and a negative pressure is formed in the pre-cooling return air bin. In cooperation with the single-sided air outlet cold air fan, a cold air flow can be forcibly formed at the stacking position of the small berries, which can make the cold air flow act on the small berries more concentratedly, greatly improving the pre-cooling effect and pre-cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2It is a schematic diagram of the internal structure of the present invention;

[0049] Figure 3 It is a schematic diagram of the planar structure of the present invention in a top-down direction;

[0050] Figure 4 For along Figure 3 Structural diagram of the middle section line AA;

[0051] Figure 5 For along Figure 3 Schematic diagram of the structure of the middle section line BB;

[0052] Figure 6 This is a front view structural diagram of the pre-cooling return air bin in the present invention;

[0053] Figure 7 It is a rear view structural schematic diagram of the pre-cooling return air bin in the present invention;

[0054] Figure 8 It is a schematic diagram of the structure of the precooling tray in the present invention;

[0055] Fig. 9 It is a structural schematic diagram of the winding assembly in the present invention;

[0056] Fig.10 It is a structural schematic diagram of a pressure difference precooling device in the prior art.

[0057] In the figure: 1. Pre-cooling warehouse; 2. Warehouse door; 3. Single-side air outlet cooling fan; 4. Differential pressure pre-cooling fan; 5. Pre-cooling roller shutter; 6. Pre-cooling tray; 61. Loading plate; 62. Support plate; 63. Bottom plate; 64. Through opening; 65. Lower rotating plate; 66. Upper rotating plate; 67. Sealing lip; 7. Pre-cooling return air bin; 71. Side plate; 72. Top plate; 73. End plate; 8. Galvanized wire mesh; 9. Steel bracket; 10. Winding assembly; 101. Shell; 102. Sealing plate; 103. Winding roller; 104. Guide roller; 105. Driving motor; 11. Straight notch; 12. Sliding bar; 13. Flexible folding curtain; 14. Guide groove; 15. Guide block; 16. Baffle; 17. Telescopic rod; 18. Support spring; 19. Anemometer; 20. Positive pressure air pipe; 21. Negative pressure air pipe; 22. Fruit and vegetable basket; 23. Static pressure chamber; 24. Port fan. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0059] See also Figure 1-Figure 10 The present invention provides a technical solution: a small berry pre-cooling warehouse, comprising a pre-cooling warehouse 1, which is a hollow rectangular parallelepiped structure as a whole, and a closable warehouse door 2 is arranged on one side wall;

[0060] A plurality of precooling return air bins 7 are arranged equidistantly along the inner wall of the rear side of the precooling room 1. The front end surface of the precooling return air bin 7 is provided with a precooling opening connected to the precooling room 1. The precooling tray 6 fully loaded with small berries is placed inside the precooling room 1 and faces the precooling opening.

[0061] The single-side air outlet cooling fan 3 is arranged on the top of the pre-cooling return air bin 7, with its air inlet port facing the back of the pre-cooling warehouse 1 and its air outlet port facing the front of the pre-cooling warehouse 1;

[0062] The differential pressure precooling fan 4 is arranged inside the precooling return air bin 7, with the port at its air inlet facing the precooling opening and the port at its air outlet facing the top surface of the precooling chamber 1;

[0063] The pre-cooling roller shutter 5 is arranged at the front end surface of the pre-cooling return air bin 7, and its length and width are both greater than the length and width of the pre-cooling opening.

[0064] Specifically, first, open the door 2 of the pre-cooling room 1, and place the pre-cooling tray 6 loaded with small berries inside the pre-cooling room 1 so that it faces the pre-cooling opening of the pre-cooling return air bin 7; the pre-cooling return air bin 7 is equidistantly arranged along the inner wall of the rear side of the pre-cooling room 1, providing a stable structural support for the pre-cooling process;

[0065] The single-side air outlet cooling fan 3 starts to work, with its air inlet port facing the back of the pre-cooling warehouse 1, which can absorb the air discharged from the pre-cooling return air bin 7, and the air outlet port blows out cold air toward the front of the pre-cooling warehouse 1. The cold air flows in the pre-cooling warehouse 1, and a part of it enters the pre-cooling return air bin 7 through the pre-cooling opening;

[0066] The differential pressure precooling fan 4 is arranged inside the precooling return air bin 7, and the port at the air inlet end faces the precooling opening. At this time, since the small berries on the precooling tray 6 have a higher temperature, a temperature difference is formed with the cold air entering the precooling return air bin 7, resulting in heat exchange. The differential pressure precooling fan 4 blows the air after heat exchange from the port at the air outlet end toward the top surface of the precooling warehouse, so that the air circulates.

[0067] At the same time, in order to improve the pre-cooling effect and reduce the loss of cooling capacity, the pre-cooling roller curtain 5 arranged on the front end face of the pre-cooling return air bin 7 can be lowered as needed. Its length and width are both greater than the length and width of the pre-cooling opening, which can effectively block and ensure that the pre-cooling wind can fully act on the small berries on the pre-cooling tray 6.

[0068] The coordinated use of the single-side air outlet cooling fan 3 and the differential pressure pre-cooling fan 4 can form a good air circulation in the pre-cooling warehouse 1, accelerate the heat exchange between the small berries and the cold air, and improve the pre-cooling efficiency, so that the temperature of the small berries can be quickly reduced to maintain freshness and nutritional value.

[0069] The provision of the pre-cooling return air bin 7 makes the air flow more orderly, and the small berries are pre-cooled in a centralized manner, thus reducing energy waste.

[0070] Uniform precooling:

[0071] Multiple pre-cooling return air bins 7 are arranged at equal distances to ensure a relatively uniform temperature distribution in the pre-cooling warehouse 1. The small berries can receive a relatively consistent supply of cold at all positions, avoiding local overheating or overcooling, and ensuring the consistency of the pre-cooling effect.

[0072] The setting of the precooling roller shutter 5 can be flexibly adjusted according to actual needs. When it is necessary to enhance the precooling effect or reduce external interference, the precooling roller shutter 5 can be lowered; when performing operations such as cargo entry and exit, the precooling roller shutter 5 can be conveniently folded up, thereby improving the convenience of precooling use.

[0073] It should be noted that, refer to Fig.10 The pre-cooling warehouse in the prior art includes an anemometer 19, a positive pressure air pipe 20, a negative pressure air pipe 21, a fruit and vegetable basket 22, a static pressure chamber 23, and a port fan 24;

[0074] When precooling small berries, first fill the fruit and vegetable basket 22 with small berries, then stack multiple fruit and vegetable baskets 22 together, and then push the fruit and vegetable basket 22 full of small berries into the negative pressure air pipe 21. The port fan 24 generates airflow after starting, providing a power source for the entire precooling process. The airflow flows in the pre-positive pressure air pipe 20 and the negative pressure air pipe 21 to promote air circulation.

[0075] Static pressure chamber 23: receives the airflow generated by the port fan 24, so that the airflow is stabilized and evenly distributed therein. The static pressure chamber can balance the air pressure and ensure that the airflow flows to each area in a relatively stable state;

[0076] Positive pressure air pipe 20 and negative pressure air pipe 21: The positive pressure air pipe delivers air of a certain pressure into the storage under the action of the fan, while the negative pressure air pipe is responsible for exhausting the air in the storage. The two cooperate with each other to form a circulating flow path of the air. Through this regular air circulation, it is ensured that fruits and vegetables at different positions in the storage can be evenly exposed to the cooling air.

[0077] Anemometer 19: Real-time monitoring of the air flow velocity in the pre-cooling room. By monitoring the wind speed, the operating state of the port fan can be adjusted to achieve the best pre-cooling effect.

[0078] Efficient pre-cooling: The synergistic effect of the port fan, positive pressure air pipe, negative pressure air pipe and static pressure chamber ensures the rapid circulation and uniform distribution of air in the pre-cooling warehouse, which can quickly take away the heat on the surface of fruits and vegetables, achieve efficient pre-cooling, and effectively extend the shelf life of fruits and vegetables.

[0079] Precise control: The setting of the anemometer makes it possible to monitor the wind speed in the warehouse in real time, so that the fan operation status can be accurately adjusted according to the actual situation to ensure the stability and reliability of the precooling process.

[0080] Uniform cooling: The fruits and vegetables in the fruit and vegetable basket can fully contact the circulating cooling air, avoiding local overheating or overcooling, achieving uniform cooling and ensuring the quality of the fruits and vegetables.

[0081] Reasonable structure: The various components of the pre-cooling warehouse cooperate with each other to form a complete pre-cooling system. This kind of structural design is reasonable, easy to install and maintain, and improves the efficiency and life of the pre-cooling warehouse.

[0082] See also Figure 6 and Figure 7 , pre-cooling return air chamber 7 includes

[0083] A plurality of side panels 71 are extended from the rear side wall of the pre-cooling room 1 to the interior of the pre-cooling room 1 and are perpendicular to the rear side wall of the pre-cooling room 1;

[0084] A top plate 72 is connected to the tops of two adjacent side plates 71, and an air outlet end of the differential pressure precooling fan 4 passes through the top plate 72;

[0085] The end panel 73 is connected to the front parts of the two adjacent side panels 71 , and the pre-cooling opening is opened on the end panel 73 .

[0086] Specifically, in the precooling process of small berries, the precooling return air bin 7 plays a key role as an important structure. A plurality of side panels 71 extend from the rear side wall of the precooling warehouse 1 to the inside, perpendicular to the rear side wall, and together with the top panel 72 connected to the top of two adjacent side panels 71 and the end panel 73 connected to the front of the two adjacent side panels 71, form a relatively closed space;

[0087] The air outlet of the differential pressure precooling fan 4 penetrates the top plate 72, transports the air inside the precooling return air bin 7 to the outside, and introduces the outside air into the precooling return air bin 7. The cold air flows in the precooling return air bin 7, contacts the small berries in the precooling warehouse 1 through the precooling opening on the end panel 73, performs heat exchange, absorbs the heat of the small berries, and realizes continuous precooling of the small berries.

[0088] See also Figure 5 and Figure 6A galvanized wire mesh 8 is arranged inside the end panel 73. The galvanized wire mesh 8 is detachably installed inside the precooling opening, and the size of the galvanized wire mesh 8 is adapted to the precooling opening.

[0089] Specifically, when small berries need to be precooled, if ventilation is required or larger debris is prevented from entering the precooling return air bin 7, the galvanized wire mesh 8 can be installed inside the precooling opening of the end panel 73. The galvanized wire mesh 8 is detachably fixed to the precooling opening by a specific installation method, such as a slot, a bolt, etc., and its size is adapted to the precooling opening, and it can completely cover the precooling opening to play a filtering and protective role. When the galvanized wire mesh 8 is not needed, it can be easily removed for cleaning, maintenance or replacement.

[0090] The galvanized wire mesh 8 can prevent larger debris from entering the pre-cooling return air bin 7 while ensuring a certain ventilation, thereby ensuring the cleanliness and safety of the pre-cooling environment. It helps to maintain the air quality in the pre-cooling return air bin 7 and prevent the pre-cooling effect of small berries from being affected by the entry of debris.

[0091] See also Figure 4 A steel bracket 9 is installed inside the pre-cooling return air bin 7, and the differential pressure pre-cooling fan 4 is installed on the top of the steel bracket 9.

[0092] Specifically, the steel bracket 9 is provided to provide support for the installation of the differential pressure precooling fan 4, so that the installation of the differential pressure precooling fan 4 is more stable.

[0093] See also Figure 2 The pre-cooling roller curtain 5 is composed of a sealing cloth and a cross bar. The cross bar is fixed to the outer surface of the sealing cloth and is arranged along the width direction of the sealing cloth. The length of the cross bar is longer than the width of the sealing cloth.

[0094] Specifically, the pre-cooling roller shutter 5 is composed of a sealing cloth and a cross bar. The cross bar is fixed on the outer surface of the sealing cloth and is longer than the width of the sealing cloth. During the lowering process, the cross bar plays a role in supporting and stabilizing the sealing cloth, so that the sealing cloth can be unfolded relatively flatly to cover the required area, thereby forming a relatively sealed space, maintaining an internal low-temperature environment to achieve pre-cooling of small berries and other items.

[0095] The sealing cloth can effectively block the pre-cooling return air from the area outside the small berries from entering the pre-cooling return air bin 7, providing a good pre-cooling environment for the small berries. The presence of the crossbar makes the sealing cloth flatter when unfolded, reduces the wrinkles of the sealing cloth, thereby improving the sealing performance and further enhancing the pre-cooling effect;

[0096] The cross bar provides support for the sealing cloth, increasing the overall strength and stability of the pre-cooling roller blind 5. During use, the sealing cloth is not easily deformed, twisted or damaged, ensuring the long-term reliable use of the pre-cooling roller blind 5.

[0097] See also Figure 6 and Fig. 9 , and also includes a winding assembly 10 arranged on the front end surface of the pre-cooling return air bin 7 for winding the pre-cooling roller blind 5. The winding assembly 10 includes

[0098] The shell 101 is connected to the front end of the pre-cooling return air bin 7, and both side walls in the length direction are connected to the blocking plates 102;

[0099] A winding roller 103 is rotatably mounted inside the housing 101, and the pre-cooling roller blind 5 is wound around the winding roller 103;

[0100] The driving motor 105 is installed on one side of the blocking plate 102 , and a driving end thereof is connected to one end of the winding roller 103 .

[0101] Specifically, when the pre-cooling curtain 5 needs to be lowered, the drive motor 105 drives the winding roller 103 to rotate in the reverse direction, and the pre-cooling curtain 5 is gradually unfolded from the winding roller 103 to cover the required position. When the pre-cooling curtain 5 needs to be retracted, the drive motor 105 drives the winding roller 103 to rotate forward, and the pre-cooling curtain 5 is wound around the winding roller 103. The housing 101 and the blocking plate 102 play a role in protecting the winding roller 103 and the drive motor 105, and also make the reeling process more stable and orderly.

[0102] The rotation of the winding roller 103 is automatically controlled by the driving motor 105 to realize the retracting and releasing operation of the precooling roller curtain 5, without manual operation, which greatly improves the work efficiency. Whether putting down the precooling roller curtain 5 for precooling operation or taking up the precooling roller curtain 5 for other operations, it can be completed quickly and accurately.

[0103] The length and retraction speed of the pre-cooling roller shutter 5 can be flexibly adjusted according to different pre-cooling requirements and site conditions. It is applicable to both small pre-cooling spaces and large pre-cooling warehouses and has strong adaptability.

[0104] See also Fig. 9 A guide roller 104 is rotatably mounted inside the housing 101 . The guide roller 104 is located obliquely below the winding roller 103 , and the pre-cooling roller curtain 5 is placed on the guide roller 104 .

[0105] Specifically, the precooling curtain 5 is retracted and extended under the action of the reeling roller 103. When the precooling curtain 5 is lowered, the guide roller 104 located obliquely below the reeling roller 103 changes direction, so that the precooling curtain 5 can cover the precooling tray 6 more smoothly. The guide roller 104 can play a guiding role, ensuring that the precooling curtain 5 can slide in line with the front of the precooling opening. At the same time, the rotation of the guide roller 104 assists the movement of the precooling curtain 5 and reduces friction resistance.

[0106] See also Figure 8, precooling tray 6 includes

[0107] The bearing plate 61 is a rectangular plate structure, and a support plate 62 extending vertically downward is installed on its bottom surface, and a bottom plate 63 is fixedly connected to the bottom surface of the support plate 62;

[0108] The through opening 64 is formed between the carrier plate 61 and the through opening 64 and is arranged along the length direction and the width direction of the carrier plate 61;

[0109] The lower rotating plate 65 is rotatably mounted on the bottom surface of the bearing plate 61 through a torsion shaft and corresponds to the through opening 64;

[0110] The upper rotating plate 66 is rotatably mounted on the top surface of the bottom plate 63 through a torsion shaft and corresponds to the lower rotating plate 65;

[0111] The sealing lips 67 are connected to the top surfaces of the lower rotating plate 65 and the upper rotating plate 66. When the lower rotating plate 65 and the upper rotating plate 66 are in the initial state, the sealing lips 67 installed thereon are in contact with each other.

[0112] Torque shaft includes

[0113] The rotating shaft is installed in the length direction of the lower rotating plate 65 and the upper rotating plate 66, and its end is fixedly connected to the inner wall of the through opening 64;

[0114] The torsion spring is sleeved on the outer wall of the rotating shaft, one end of which is fixedly connected to the side walls of the lower rotating plate 65 and the upper rotating plate 66 , and the other end of which is fixedly connected to the inner wall of the through opening 64 .

[0115] Specifically, under normal conditions, the lower rotating plate 65 and the upper rotating plate 66 are in an initial state under the action of the torsion spring in the torsion shaft. At this time, the sealing lips 67 connected to the lower rotating plate 65 and the upper rotating plate 66 fit together to seal the through opening 64, thereby preventing the pre-cooling return air from entering the interior of the pre-cooling tray 6, thereby ensuring that the pre-cooling return air can fully act on the small berries placed on the pre-cooling tray 6.

[0116] When it is necessary to take out the pre-cooled small berries, the fork arm of the forklift is inserted into the through opening 64. During the insertion process of the fork arm, a thrust is generated on the lower rotating plate 65 and the upper rotating plate 66. The lower rotating plate 65 overcomes the torsion force of the torsion spring and rotates downward around the rotating axis to open the through opening 64.

[0117] See also Figure 6 and Figure 7 , and also includes a sealing structure arranged on the inner wall of the pre-cooling return air bin 7 for sealing the pre-cooling opening. The sealing structure includes

[0118] A straight slot 11 is formed on the inner wall of the side plate 71 and is formed along the extending direction of the side plate 71, and a sliding bar 12 is slidably mounted inside the slot;

[0119] The flexible folding curtain 13 can slide along the inner wall of the side panel 71 and the end panel 73, and one side of the flexible folding curtain 13 is connected to the sliding bar 12;

[0120] The guide groove 14 is concavely arranged on the outer wall of the lower part of the end panel 73, and a guide block 15 is slidably installed inside the guide groove 14, and one end of the flexible folding curtain 13 away from the sliding bar 12 is connected to the flexible folding curtain 13;

[0121] The baffle 16 is fixed on the front side of the end panel 73, and a telescopic rod 17 is fixedly connected thereto, and the other end of the telescopic rod 17 is connected to the guide block 15;

[0122] The support spring 18 is sleeved on the outside of the telescopic rod 17 , one end of which is connected to the guide block 15 , and the other end of which is connected to the guide block 15 .

[0123] Specifically, under the guiding action of the telescopic rod 17, the support spring 18 can be linearly extended and retracted, and the elastic force of the support spring 18 can push the guide block 15 to slide inside the guide groove 14, so that the guide block 15 can fit with the side wall of the precooling tray 6 loaded with small berries during precooling. At the same time, the guide block 15 will drive the flexible folding curtain 13 to slide during the sliding process, so that the flexible folding curtain 13 can fit and slide along the inner wall of the end panel 73 and unfold, thereby blocking the gap between the side wall of the precooling tray 6 and the outermost side wall of the galvanized wire mesh 8, further ensuring the return air effect and ensuring that the cold air can fully act on the precooling tray 6 fully loaded with small berries.

Claims

1. A small berry pre-cooling store, characterized in that: include The pre-cooling room (1) is a hollow rectangular parallelepiped structure as a whole, and a door (2) that can be opened and closed is arranged on one side wall thereof; A plurality of precooling return air bins (7) are arranged at equal distances along the inner wall of the rear side of the precooling room (1); a precooling opening communicating with the precooling room (1) is arranged on the front face of the precooling return air bin (7); a precooling tray (6) fully loaded with small berries is placed inside the precooling room (1) and directly faces the precooling opening; A single-side air outlet cooling fan (3) is arranged on the top of the pre-cooling return air bin (7), with its air inlet port facing the back of the pre-cooling chamber (1) and its air outlet port facing the front of the pre-cooling chamber (1); A differential pressure precooling fan (4) is arranged inside the precooling return air bin (7), with its air inlet port facing the precooling opening and its air outlet port facing the top surface of the precooling chamber (1); The precooling roller curtain (5) is arranged on the front end surface of the precooling return air bin (7), and its length and width are both greater than the length and width of the precooling opening.

2. A small berry pre-cooling store as claimed in claim 1, characterized in that: The pre-cooling return air bin (7) comprises A plurality of side panels (71) extending from the rear side wall of the pre-cooling room (1) toward the interior of the pre-cooling room (1) and perpendicular to the rear side wall of the pre-cooling room (1); A top plate (72) connected to the tops of the two adjacent side plates (71), and an air outlet end of the differential pressure precooling fan (4) passes through the top plate (72); The end panel (73) is connected to the front parts of the two adjacent side panels (71), and the pre-cooling opening is opened on the end panel (73).

3. A small berry pre-cooling store as claimed in claim 2, characterized in that: A galvanized wire mesh (8) is arranged inside the end panel (73), and the galvanized wire mesh (8) is detachably installed inside the pre-cooling opening, and the size of the galvanized wire mesh (8) is adapted to the pre-cooling opening.

4. A small berry pre-cooling store as claimed in claim 2, characterized in that: A steel bracket (9) is installed inside the pre-cooling return air bin (7), and the differential pressure pre-cooling fan (4) is installed on the top of the steel bracket (9).

5. A small berry pre-cooling store as claimed in claim 1, characterized in that: The precooling roller curtain (5) is composed of a sealing cloth and a cross bar, wherein the cross bar is fixed to the outer surface of the sealing cloth and is arranged along the width direction of the sealing cloth, and the length of the cross bar is longer than the width of the sealing cloth.

6. A small berry precooling store as claimed in claim 5, characterized in that: It also includes a reeling assembly (10) arranged on the front end surface of the pre-cooling return air bin (7) for reeling in the pre-cooling roller blind (5), the reeling assembly (10) including A shell (101) is connected to the front end surface of the pre-cooling return air bin (7), and both side walls in the length direction are connected to blocking plates (102); A winding roller (103) is rotatably mounted inside the housing (101), and the pre-cooling roller curtain (5) is wound around the winding roller (103); The driving motor (105) is installed on one side of the blocking plate (102), and its driving end is connected to one end of the winding roller (103).

7. A small berry precooling store as claimed in claim 6, characterized in that: A guide roller (104) is also rotatably mounted inside the shell (101); the guide roller (104) is located obliquely below the winding roller (103), and the pre-cooling roller curtain (5) is mounted on the guide roller (104).

8. The small berry pre-cooling store according to claim 1, characterized in that: The precooling tray (6) comprises The bearing plate (61) is in a rectangular plate structure, and a support plate (62) extending vertically downward is installed on its bottom surface, and the bottom surface of the support plate (62) is fixedly connected to the bottom plate (63); A through opening (64) is formed between the carrier plate (61) and the through opening (64) and is arranged along the length direction and the width direction of the carrier plate (61); A lower rotating plate (65) is rotatably mounted on the bottom surface of the bearing plate (61) via a torsion shaft and corresponds to the through opening (64); An upper rotating plate (66) is rotatably mounted on the top surface of the bottom plate (63) via a torsion shaft and corresponds to the lower rotating plate (65); The sealing lips (67) are connected to the top surfaces of the lower rotating plate (65) and the upper rotating plate (66), and the sealing lips (67) installed thereon are in contact with each other when the lower rotating plate (65) and the upper rotating plate (66) are in an initial state.

9. A small berry precooling store as claimed in claim 8, characterized in that: The torsion shaft comprises A rotating shaft is installed in the length direction of the lower rotating plate (65) and the upper rotating plate (66), and its end is fixedly connected to the inner side wall of the through opening (64); The torsion spring is sleeved on the outer wall of the rotating shaft, one end of which is fixedly connected to the side walls of the lower rotating plate (65) and the upper rotating plate (66), and the other end of which is fixedly connected to the inner wall of the through opening (64).

10. A small berry pre-cooling store as claimed in claim 2, characterized in that: It also includes a sealing structure arranged on the inner wall of the pre-cooling return air bin (7) for sealing the pre-cooling opening. The sealing structure includes A straight slot (11) is formed on the inner wall of the side plate (71) and is formed along the extending direction of the side plate (71), and a sliding bar (12) is slidably mounted inside the straight slot; A flexible folding curtain (13) can slide along the inner wall of the side panel (71) and the end panel (73), and one side of the flexible folding curtain (13) is connected to the sliding strip (12); A guide groove (14) is concavely arranged on the outer wall of the lower part of the end panel (73), and a guide block (15) is slidably installed inside the guide groove. One end of the flexible folding curtain (13) away from the sliding bar (12) is connected to the flexible folding curtain (13); A baffle (16) is fixed on the front side of the end panel (73), and a telescopic rod (17) is fixedly connected thereto, and the other end of the telescopic rod (17) is connected to the guide block (15); The support spring (18) is sleeved on the outside of the telescopic rod (17), one end of which is connected to the guide block (15), and the other end of which is connected to the guide block (15).

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