Vacuum pre-cooling refrigeration system for vegetables

Abstract

The utility model provides a vacuum pre-cooling refrigeration system for vegetables, which relates to the technical field of vegetable refrigeration devices, and comprises a box body, a working box is fixedly connected to one side of the inner wall of the box body, a motor is arranged on one side of the inner wall of the working box, a worm is arranged at the output end of the motor, and two supports are fixedly connected to one side of the inner wall of the working box. The two supports are rotationally connected with the worm, one side of the surface wall of the worm is in meshed connection with a worm gear, a lead screw is installed on one side of the inner wall of the worm gear, the lead screw is rotationally connected with the box body, and the circumferential side of the surface wall of the lead screw is in threaded connection with three containing frames. Then the placing frame is driven to move equidistantly under the action of the connecting rod, and finally the vegetables are placed layer by layer under the action of the placing frame, so that the working efficiency of refrigeration operation in the box body is improved, the internal space of the box body is fully utilized, and extrusion damage to the vegetables is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vegetable refrigeration devices, in particular to a vacuum pre-cooling refrigeration system for vegetables. Background Art

[0002] The vacuum precooler is a cooling processing equipment that uses vacuum precooling technology and a vacuum pump to extract air and water vapor from a vacuum tank to reduce the air pressure in the vacuum box. Under low pressure, the boiling point of water decreases, the latent heat of evaporation increases, and the free water on the surface of the cooled object vaporizes, taking away its own and environmental heat to achieve a cooling effect. Fresh agricultural products are still vital after harvest, and respiration and other physiological changes continue, which accelerates product aging, withering and yellowing. Low temperature can inhibit physiological changes that cause product deterioration and slow down bacterial growth. The vacuum precooler is not a refrigeration equipment, but a cooling processing equipment. It is a cooling equipment before the product is placed in the storage room or on the shelf.

[0003] However, the existing vacuum pre-cooling refrigeration system for vegetables is inconvenient to use, because the vegetables are usually stored in piles inside the pre-cooler, which leads to poor air circulation inside and reduces the cooling effect. Storing vegetables in piles is not conducive to fully utilizing the space inside the pre-cooler and is more likely to crush the vegetables inside, increasing the cost of refrigeration. Therefore, it is necessary to propose a new vacuum pre-cooling refrigeration system for vegetables. Utility Model Content

[0004] The utility model aims to solve the problem that vegetables are piled up inside a precooler, resulting in poor air circulation inside, reduced cooling effect, easy crushing of vegetables, and inability to fully utilize the space inside the precooler, and proposes a vacuum precooling and refrigeration system for vegetables.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum pre-cooling and refrigeration system for vegetables, comprising a box body, a working box is fastened to one side of the inner wall of the box body, a motor is installed on one side of the inner wall of the working box, a worm is installed on the output end of the motor, two brackets are fastened to one side of the inner wall of the working box, the two brackets are rotatably connected to the worm, a worm wheel is meshingly connected to one side of the surface wall of the worm, a screw is installed on one side of the inner wall of the worm wheel, the screw is rotatably connected to the box body, three placement racks are threadedly connected to the circumferential side of the surface wall of the screw rod, the inner walls of the three placement racks are slidably connected to two sliding rods, two guide rails are installed on one side of the inner wall of the box body, the two guide rails are slidably connected to the three placement racks.

[0006] Preferably, a connecting rod is installed on one side of the surface wall of the three placement racks, and a refrigeration compartment is opened on one side of the inner wall of the box body.

[0007] Preferably, a refrigerator is installed on one side of the inner wall of the refrigeration bin, and an air outlet pipe is installed on the output end of the refrigerator.

[0008] Preferably, one side of the surface wall of the refrigerant is electrically connected to a power source, and a filter plate is installed at the output end of the air outlet pipe.

[0009] Preferably, a bellows is fastened to one side of the inner wall of the box body, and a fan is installed on one side of the inner wall of the bellows.

[0010] Preferably, a box door is installed on one side of the surface wall of the box body, and a vacuum pipe is connected to one side of the surface wall of the box body.

[0011] Preferably, a vacuum pump is installed on one side of the surface wall of the vacuum tube.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the worm is driven to rotate under the action of the motor output end, and the rotation of the worm drives the lead screw to rotate, and then the placement rack is driven to move an equal distance under the action of the connecting rod, and finally the vegetables are placed in layers under the action of the placement rack, thereby improving the working efficiency of the refrigeration operation inside the box, making full use of the internal space of the box, and reducing the damage of the vegetables caused by squeezing.

[0014] 2. In the utility model, the user starts the refrigerator to deliver cold air into the interior of the box, and then the interior of the box is cooled down under the action of the vacuum pump, and then the fan is started to promote air flow and exhaust inside the box, ensuring that the pre-cooling process is carried out efficiently and stably, thereby improving the work efficiency of the box pre-cooling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a vacuum pre-cooling and refrigeration system for vegetables;

[0016] Figure 2 The utility model provides a schematic diagram of the internal cross-sectional structure of a vacuum pre-cooling and refrigeration system for vegetables;

[0017] Figure 3 The utility model provides a side view of the internal cross-sectional structure of a vacuum pre-cooling and refrigeration system for vegetables;

[0018] Figure 4 The utility model provides a partial structural schematic diagram of a vacuum pre-cooling and refrigeration system for vegetables.

[0019] Legend: 1. Box body; 2. Storage rack; 3. Guide rail; 4. Slide rod; 5. Screw; 6. Working box; 7. Worm gear; 8. Worm; 9. Bracket; 10. Motor; 11. Connecting rod; 12. Bellows; 13. Fan; 14. Refrigeration compartment; 15. Air outlet duct; 16. Refrigeration machine; 17. Power supply; 18. Vacuum pump; 19. Vacuum tube; 20. Box door; 21. Filter plate. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Example 1

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a vacuum pre-cooling and refrigeration system for vegetables, comprising a box body 1, a working box 6 is fastened to one side of the inner wall of the box body 1, a motor 10 is installed on one side of the inner wall of the working box 6, a worm 8 is installed on the output end of the motor 10, two brackets 9 are fastened to one side of the inner wall of the working box 6, the two brackets 9 are rotatably connected to the worm 8, a worm wheel 7 is meshingly connected to one side of the surface wall of the worm 8, a screw 5 is installed on one side of the inner wall of the worm wheel 7, the screw 5 is rotatably connected to the box body 1, three placement racks 2 are threadedly connected to the peripheral side of the surface wall of the screw 5, the inner walls of the three placement racks 2 are slidably connected to two sliding rods 4, two guide rails 3 are installed on one side of the inner wall of the box body 1, the two guide rails 3 are slidably connected to the three placement racks 2, and a connecting rod 11 is installed on one side of the surface wall of the three placement racks 2.

[0024] In this embodiment, the user starts the motor 10 installed inside the working box 6. Under the action of the motor 10, the output end of the motor 10 rotates to drive the worm 8 to rotate, and the bracket 9 supports the worm 8. The rotation of the worm 8 drives the worm wheel 7 to rotate, and the rotation of the worm wheel 7 drives the screw rod 5 to rotate. Under the action of the two sliding rods 4, the screw rod 5 rotates to drive the placement rack 2 to move downward on the guide rail 3. The sliding rod 4 and the guide rail 3 also connect and support the placement rack 2. By lowering the placement rack 2, it is convenient for the user to store the vegetables in layers, thereby making full use of the internal space of the box body 1, and at the same time avoiding the vegetables from being stacked together, so that the vegetables are squeezed and lost. Then, the user starts the motor 10, drives the screw rod 5 to reverse, and then drives the support rack to rise. By making the placement rack 2 rise at an equal distance under the action of the connecting rod 11, the air circulation between the vegetables is avoided, thereby reducing the work efficiency of the vegetable pre-cooling operation.

[0025] Example 2

[0026] like Figure 1-Figure 4 As shown, a refrigeration bin 14 is provided on one side of the inner wall of the box body 1, a refrigerator 16 is installed on one side of the inner wall of the refrigeration bin 14, an air outlet pipe 15 is installed on the output end of the refrigerator 16, a power supply 17 is electrically connected to one side of the surface wall of the refrigerant, a filter plate 21 is installed on the output end of the air outlet pipe 15, a bellows 12 is fastened to one side of the inner wall of the box body 1, a fan 13 is installed on one side of the inner wall of the bellows 12, a box door 20 is installed on one side of the surface wall of the box body 1, a vacuum pipe 19 is connected to one side of the surface wall of the box body 1, and a vacuum pump 18 is installed on one side of the surface wall of the vacuum pipe 19.

[0027] In this embodiment, the user starts the refrigerator 16 installed inside the refrigeration bin 14, and the refrigerator 16 starts to release cold air. The cold air generated by the refrigerator 16 is sent into the interior of the box 1 under the action of the air outlet pipe 15. Under the action of the filter plate 21, water droplets or waste materials are reduced from entering the box 1 to contaminate the vegetables. Then, the vacuum pump 18 is started, and under the action of the vacuum tube 19, the interior of the box 1 is vacuumed, so that the moisture on the surface of the vegetables evaporates quickly, and the evaporation absorbs heat to achieve rapid cooling, thereby improving the working efficiency of the box 1 for refrigerating vegetables. Then, the user starts the fan 13 installed inside the bellows 12 to promote the internal air flow and exhaust of the box 1 to ensure that the pre-cooling process is carried out efficiently and stably. The power supply 17 provides energy for the refrigerator 16, and the box door 20 is closed to improve the refrigeration efficiency of the inside of the box 1.

[0028] The working principle of this embodiment: when in use, first connect the power supply 17, the user starts the motor 10, the output end of the motor 10 rotates to drive the worm 8 to rotate, the bracket 9 supports the worm 8, the rotation of the worm 8 drives the worm wheel 7 to rotate, the rotation of the worm wheel 7 drives the screw rod 5 to rotate, under the action of the two sliding rods 4, the screw rod 5 rotates to drive the placement rack 2 to move downward on the guide rail 3, the sliding rod 4 and the guide rail 3 also play a role of connecting and supporting the placement rack 2, by lowering the placement rack 2, it is convenient for the user to store the vegetables in layers, thereby making full use of the internal space of the box body 1, then the user starts the motor 10, drives the screw rod 5 to reverse, and then drives the support rack to rise, by the action of the connecting rod 11, the placement rack 2 is evenly spaced. Rise, thereby avoiding air blockage between vegetables, then close the box door 20, and the user starts the refrigerator 16. The refrigerator 16 starts to release cold air, and the cold air generated by the refrigerator 16 is sent into the interior of the box body 1 under the action of the air outlet pipe 15. Under the action of the filter plate 21, it is reduced that water droplets or waste enters the box body 1 and pollutes the vegetables. Then start the vacuum pump 18, and under the action of the vacuum tube 19, the interior of the box body 1 is vacuumed, so that the moisture on the surface of the vegetables evaporates quickly, and the evaporation absorbs heat to achieve rapid cooling, thereby improving the working efficiency of the box body 1 for the refrigeration of vegetables. Finally, the user starts the fan 13 to promote the internal air flow and exhaust of the box body 1 to ensure that the pre-cooling process is carried out efficiently and stably.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vacuum precooling and refrigeration system for vegetables, characterized in that: The invention comprises a box body (1), a working box (6) is fastened to one side of the inner wall of the box body (1), a motor (10) is installed on one side of the inner wall of the working box (6), a worm (8) is installed on the output end of the motor (10), two brackets (9) are fastened to one side of the inner wall of the working box (6), the two brackets (9) and the worm (8) are rotatably connected, a worm wheel (7) is meshingly connected to one side of the surface wall of the worm (8), a screw rod (5) is installed on one side of the inner wall of the worm wheel (7), the screw rod (5) and the box body (1) are rotatably connected, three placement racks (2) are threadedly connected to the peripheral side of the surface wall of the screw rod (5), the inner walls of the three placement racks (2) are slidably connected to two sliding rods (4), two guide rails (3) are installed on one side of the inner wall of the box body (1), the two guide rails (3) and the three placement racks (2) are slidably connected.

2. The vacuum precooling and refrigeration system for vegetables according to claim 1, characterized in that: A connecting rod (11) is installed on one side of the surface wall of the three placement racks (2), and a refrigeration chamber (14) is opened on one side of the inner wall of the box body (1).

3. The vacuum precooling and refrigeration system for vegetables according to claim 2, characterized in that: A refrigeration machine (16) is installed on one side of the inner wall of the refrigeration bin (14), and an air outlet pipe (15) is installed on the output end of the refrigeration machine (16).

4. The vacuum precooling and refrigeration system for vegetables according to claim 3, characterized in that: One side of the surface wall of the refrigerator is electrically connected to a power source (17), and a filter plate (21) is installed at the output end of the air outlet pipe (15).

5. The vacuum precooling and refrigeration system for vegetables according to claim 4, characterized in that: A bellows (12) is fixedly connected to one side of the inner wall of the box body (1), and a fan (13) is installed on one side of the inner wall of the bellows (12).

6. The vacuum precooling and refrigeration system for vegetables according to claim 5, characterized in that: A box door (20) is installed on one side of the surface wall of the box body (1), and a vacuum extraction pipe (19) is connected to one side of the surface wall of the box body (1).

7. The vacuum precooling and refrigeration system for vegetables according to claim 6, characterized in that: A vacuum pump (18) is installed on one side of the surface wall of the vacuum tube (19).

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