A vacuum pre-cooling and quick-freezing integrated machine and its usage method

Abstract

This invention discloses an integrated vacuum precooling and quick-freezing machine and its usage method, relating to the field of vacuum precooling and quick-freezing technology. It includes a mounting base and a housing, with an inner liner fixedly installed inside the housing. It also includes a pull-out adjustment mechanism, which consists of a first arc-shaped groove, a straight groove, a second arc-shaped groove, a sliding column, a first pull-out plate, a second pull-out plate, a third pull-out plate, an adjustment groove, and an adjustment sliding column. The first arc-shaped groove, the straight groove, and the second arc-shaped groove are respectively formed on both sides of the inner wall of the inner liner, and corresponding sliding columns are slidably installed in the two first arc-shaped grooves. This invention achieves the continuous completion of precooling and quick-freezing processes within the same device through the synergistic action of the vacuum unit, the refrigeration compressor, the rotating shaft inside the water-capturing shell, the condenser plate, the inclined plate, and the water supply pipe. It also efficiently captures water vapor released from the items during vacuum precooling and realizes the function of condensate recovery.

Description

Technical Field

[0001] This invention relates to the field of vacuum precooling and quick-freezing technology, and in particular to an integrated vacuum precooling and quick-freezing machine and its usage method. Background Technology

[0002] Vacuum precooling and quick-freezing integrated machines are advanced food processing and preservation equipment. They utilize the principle that water boils at low temperatures and absorbs heat under vacuum conditions to quickly and evenly cool food. These machines are commonly found in central kitchens and food factories that require large-scale, high-efficiency processing of cooked food, fruits, and vegetables.

[0003] The patent document with publication number CN223228650U discloses a multi-door quick-freezing and pre-cooling integrated machine, including a quick-freezing machine body. A drive motor is fixedly connected to the top of the quick-freezing machine body, and a turntable is fixedly connected to the transmission end of the drive motor. An air inlet pipe is fixedly connected to the top of the quick-freezing machine body. One end of the air inlet pipe is externally connected to high-pressure liquid nitrogen, and a fixed ring pipe is fixedly connected to the bottom of the air inlet pipe. The top of the fixed ring pipe is fixedly connected to the top of the quick-freezing machine body, and the bottom of the fixed ring pipe is rotatably connected to the top of the turntable.

[0004] The aforementioned multi-door quick-freezing and pre-cooling integrated machine, including the quick-freezing machine body, can uniformly cool the internal space of the quick-freezing machine body through a turntable, air inlet pipe, fixed ring pipe, air distribution plate, and nozzles. However, after quick-freezing, workers need to reach into the machine body to retrieve the materials. The retrieval process is relatively troublesome and can easily cause frostbite to the workers' hands. At the same time, it cannot effectively dehumidify the inside of the machine body, which can easily cause condensation and frost inside the machine body, leading to damage to the device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a vacuum pre-cooling and quick-freezing integrated machine and its usage method, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A vacuum pre-cooling and quick-freezing integrated machine includes a mounting base and a housing, wherein an inner liner is fixedly installed inside the housing, and further includes: The pull-out adjustment mechanism comprises a first arc-shaped groove, a straight groove, a second arc-shaped groove, a sliding column, a first pull-out plate, a second pull-out plate, a third pull-out plate, an adjustment groove, and an adjustment sliding column. The first arc-shaped groove, the straight groove, and the second arc-shaped groove are respectively formed on both sides of the inner wall of the inner liner. Corresponding sliding columns are slidably installed in the two first arc-shaped grooves, and a first pull-out plate is fixedly installed between the two sliding columns. Sliding columns are slidably installed in the two straight grooves, and a second pull-out plate is fixedly installed between every two opposing sliding columns. Sliding columns are slidably installed in the two second arc-shaped grooves, and a third pull-out plate is fixedly installed between the two sliding columns. Adjustment grooves are formed at both ends of the first and second pull-out plates, and an adjustment sliding column is slidably installed in each adjustment groove. The two adjustment sliding columns installed on the first pull-out plate are slidably connected to the first arc-shaped groove, and the two adjustment columns installed on the third pull-out plate are slidably connected to the second arc-shaped groove.

[0007] In the aforementioned vacuum precooling and quick-freezing integrated machine, a support column is fixedly installed on each of the mounting bases, and a box body is fixedly installed on each of the support columns. A rotating door is rotatably installed on one side of the box body.

[0008] The aforementioned vacuum precooling and quick-freezing integrated machine also includes: The rotating sealing mechanism comprises a first rotating disk, an arc groove, a rotating column, a sliding strip, a sealing strip, a second rotating disk, and vertical grooves. The first rotating disk is rotatably connected to the inner side of the rotating door. Two arc grooves are formed on the first rotating disk, and a rotating column is slidably installed in each arc groove. Sliding strips are fixedly installed on the two rotating columns, and sealing strips are fixedly installed at both ends of the two sliding strips. The second rotating disk is rotatably connected to the inner side of the rotating door, and two vertical grooves are formed on the second rotating disk. Each rotating column is slidably connected to the corresponding two vertical grooves, and the two sealing strips are slidably connected to the inner side of the rotating door.

[0009] In the aforementioned vacuum precooling and quick-freezing integrated machine, a sealing frame is fixedly installed at one end of the housing, and sealing grooves corresponding to sealing strips are respectively opened at the upper and lower ends of the sealing frame, and the two sealing strips are slidably connected to the corresponding sealing grooves.

[0010] In the aforementioned vacuum precooling and quick-freezing integrated machine, a refrigeration compressor is fixedly installed inside the chamber, a refrigeration pipe is fixedly installed at the output end of the refrigeration compressor, the refrigeration pipe is fixedly connected to the bottom of the chamber, and a cooling plate is fixedly installed on the refrigeration pipe.

[0011] In the aforementioned vacuum pre-cooling and quick-freezing integrated machine, a vacuum unit is fixedly installed inside the box, and a vacuum tube is fixedly connected to the suction end of the vacuum unit, with the vacuum tube being fixedly connected to the inner liner.

[0012] In the aforementioned vacuum precooling and quick-freezing integrated machine, the exhaust end of the vacuum unit is fixedly connected to an exhaust pipe, the exhaust pipe is fixedly connected to the housing, and an exhaust hood is fixedly installed at one end of the exhaust pipe.

[0013] In the aforementioned vacuum precooling and quick-freezing integrated machine, a water-catching shell is fixedly installed on the inner wall of the housing, and multiple rotating shafts are rotatably installed inside the water-catching shell, with multiple condensing plates fixedly installed on each rotating shaft.

[0014] In the aforementioned vacuum precooling and quick-freezing integrated machine, an inclined plate is slidably installed inside the water-catching shell. A drain hole is fixedly connected to the lower end of the water-catching shell, and a water supply pipe is fixedly connected to the lower end of the drain hole. The water supply pipe is fixedly connected to the housing. A water tank is fixedly installed at the lower end of the housing, and the water supply pipe is fixedly connected to the water tank. An air outlet is fixedly connected to one side of the inner liner, and a ventilation pipe is fixedly connected to one side of the air outlet. The ventilation pipe has multiple ventilation holes that cooperate with the condenser plate.

[0015] A method of using a vacuum precooling and quick-freezing integrated machine, comprising the following steps: S1: Connect the power supply line to power the vacuum pre-cooling and quick-freezing integrated machine. Open the rotating door and place the items to be pre-cooled or quick-frozen on the pull-out adjustment mechanism in the inner liner. According to the size and shape of the items, place them on the first pull-out plate, the second pull-out plate, and the third pull-out plate. Pull the first pull-out plate to make the sliding column slide along the first arc groove. At the same time, adjust the sliding column to move in the adjustment groove to realize the extension or retraction of the first pull-out plate. S2: Close the rotating door and seal the box body by rotating the sealing mechanism. Rotate the first rotating disk, and the arc groove on the first rotating disk pushes the rotating column to move along the vertical groove on the second rotating disk. The rotating column drives the sliding strip to slide outward, and the sealing strips at both ends of the sliding strip extend outward and are tightly embedded in the sealing grooves at the upper and lower ends of the sealing frame to achieve an airtight seal between the door body and the box body. Reverse rotation of the first rotating disk can release the seal. S3: Start the vacuum unit. The vacuum unit evacuates the inner liner through the vacuum tube. The filter components installed on the vacuum tube can prevent impurities or water vapor from entering the vacuum unit. The extracted gas is discharged to the outside of the box through the exhaust pipe and exhaust hood. S4: Start the refrigeration compressor. At this time, the refrigeration compressor is only used for pre-cooling. The refrigerant is delivered to the cooling plate through the refrigeration pipe. The cooling plate cools the inner liner, causing the temperature of the items to drop. The ventilation holes in the cabinet work together with the air outlet and ventilation pipe to keep the airflow circulating smoothly. S5: When the temperature of the item drops to the preset pre-cooling temperature, the refrigeration compressor is turned off to cool the cooling plate, and the pre-cooling stage ends. Then, the refrigeration compressor is restarted, and the refrigerant is switched to the condenser plate inside the water-catching shell. Multiple rotating shafts drive the condenser plate to rotate and begin to capture the water vapor released by the item during the vacuum pre-cooling process. The rotating condenser plate causes the water vapor to condense into frost or water on its surface. The condensate flows along the inclined plate into the drain hole, and then enters the water tank for collection through the water supply pipe. At the same time, the vacuum unit continues to draw a vacuum. The ventilation holes in the water-catching shell cooperate with the air outlet and ventilation pipe to ensure smooth airflow between the inner liner and the condenser plate. The item continues to cool down due to water evaporation and enters the quick-freezing stage. S6: After quick-freezing is complete, turn off the vacuum unit and refrigeration compressor, open the valve on the ventilation pipe to allow outside air to slowly enter the chamber and restore normal pressure, rotate the first rotating plate in the opposite direction, the sealing strip will exit from the sealing groove, open the rotating door, and pull out the first, second and third pull plates in sequence through the pull adjustment mechanism to take out the items that have been quick-frozen.

[0016] Compared with existing technologies, the advantages of this invention are: 1: Through the cooperation of the first arc-shaped groove, straight groove, second arc-shaped groove, sliding column, first pull-out plate, second pull-out plate, third pull-out plate, adjustment groove, and adjustment sliding column in the pull-out adjustment mechanism, the extension and retraction states of each pull-out plate can be flexibly adjusted according to the size and shape of the items to be processed, thus adapting to the placement of items of different specifications. Compared with the fixed placement structure in the existing technology, it has the advantages of strong adaptability, convenient item retrieval and placement, and effective improvement of the utilization rate of the inner liner space, solving the problem of fixed placement space and inability to adapt to a variety of items in the existing equipment.

[0017] 2: By cooperating with the first rotating disk, arc groove, rotating column, sliding strip, and sealing strip in the rotating sealing mechanism, and with the second rotating disk, vertical groove, sealing frame, and sealing groove, the function of quickly achieving airtight sealing between the rotating door and the box and releasing the seal is realized. Compared with the shortcomings of the existing technology, such as cumbersome sealing operation and poor sealing effect, it has the advantages of tight sealing, simple operation, and stable guarantee of the equipment vacuum environment, avoiding the problem of vacuum leakage affecting the pre-cooling and quick-freezing effect.

[0018] 3: By coordinating the vacuum unit, vacuum tubes, refrigeration compressor, refrigeration pipes, and cooling plates, and combining the synergistic effect of the rotating shaft, condenser plate, inclined plate, water supply pipe, and water tank inside the water-capturing shell, the pre-cooling and quick-freezing processes can be completed continuously within the same equipment. It also efficiently captures water vapor released by the items during the vacuum pre-cooling process and realizes the function of condensate recovery. Compared with the existing technology that requires two separate sets of equipment for pre-cooling and quick-freezing, has the problems of complicated process and large loss of cold energy, it has the advantages of simplified process flow, reduced energy consumption, reduced food moisture loss, and guaranteed food quality consistency.

[0019] In summary, this invention achieves the function of flexibly adjusting the extension and retraction states of each pull plate according to the size and shape of the items to be processed through a pull-out adjustment mechanism, thus adapting to the placement of items of different specifications. Furthermore, through the synergistic action of the vacuum unit, refrigeration compressor, combined with the rotating shaft, condenser plate, inclined plate, and water supply pipe inside the water-capturing shell, it enables the continuous completion of pre-cooling and quick-freezing processes within the same equipment, and efficiently captures water vapor released by the items during the vacuum pre-cooling process, realizing the function of condensate recovery. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a vacuum precooling and quick-freezing integrated machine proposed in this invention; Figure 2 for Figure 1 The front view; Figure 3 The first arc-shaped groove and the straight groove; Figure 4 This is a schematic diagram of the pull-out adjustment mechanism; Figure 5 A schematic diagram of the ventilation duct and ventilation holes; Figure 6 This is a schematic diagram of the structure of a refrigeration compressor and refrigeration pipes; Figure 7 A schematic diagram of the exhaust hood and vacuum tube; Figure 8 This is a schematic diagram of the condenser tube and inclined plate. Figure 9 This is a structural schematic diagram of the sealing frame and sealing groove; Figure 10 This is a schematic diagram of the rotating sealing mechanism; Figure 11 This is a schematic diagram of the structure of the second rotating disk and the vertical groove; Figure 12 This is a schematic diagram of the sliding strip and sealing strip.

[0021] In the diagram: 1. Mounting base, 2. Support column, 3. Box body, 4. Rotating door, 5. Inner liner, 6. First arc groove, 7. Straight groove, 8. Second arc groove, 9. Sliding column, 10. First pull-out plate, 11. Second pull-out plate, 12. Third pull-out plate, 13. Adjustment groove, 14. Adjustment sliding column, 15. Vacuum unit, 16. Vacuum tube, 17. Exhaust pipe, 18. Water trap shell, 19. Rotating shaft, 20. Condensing plate, 21. Ventilation pipe, 22. Ventilation hole, 23. Air outlet, 24. Inclined plate, 25. Drain hole, 26. Water supply pipe, 27. Water tank, 28. Exhaust hood, 29. Refrigeration compressor, 30. Refrigeration pipe, 31. Cooling plate, 32. Sealing frame, 33. Sealing groove, 34. First rotating disk, 35. Arc groove, 36. Rotating column, 37. Sliding strip, 38. Sealing strip, 39. Second rotating disk, 40. Vertical groove. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figures 1-12 A vacuum precooling and quick-freezing integrated machine includes a mounting base 1 and a housing 3, with an inner liner 5 fixedly installed inside the housing 3, and also includes: Support columns 2 are fixedly installed on multiple mounting bases 1. The support columns 2 provide stable support for the box body 3. During transportation, the support columns 2 can be retracted into the box body 3 to facilitate transportation. The box body 3 is fixedly installed on multiple support columns 2. A rotating door 4 is rotatably installed on one side of the box body 3. The rotating door 4 is used to take out and put in items and seal the box body 3.

[0024] The pull-out adjustment mechanism comprises a first arc-shaped groove 6, a straight groove 7, a second arc-shaped groove 8, a sliding column 9, a first pull-out plate 10, a second pull-out plate 11, a third pull-out plate 12, an adjustment groove 13, and an adjustment sliding column 14. The first arc-shaped groove 6, the straight groove 7, and the second arc-shaped groove 8 are respectively formed on both sides of the inner wall of the inner liner 5. These grooves provide a guide trajectory for the sliding of the pull-out plate. Corresponding sliding columns 9 are slidably installed in the two first arc-shaped grooves 6, and a first pull-out plate 10 is fixedly installed between the two sliding columns 9. Sliding columns 9 are slidably installed in the two straight grooves 7, and a second pull-out plate 11 is fixedly installed between every two opposing sliding columns 9. Adjustment grooves 13 and 14 are slidably installed in the two second arc-shaped grooves 8. A sliding column 9 is fixedly installed between two sliding columns 9. Both ends of the first pull-out plate 10 and the second pull-out plate 11 are provided with adjustment grooves 13. An adjustment sliding column 14 is slidably installed in each adjustment groove 13. The cooperation between the adjustment groove 13 and the adjustment sliding column 14 can realize the angle adjustment and position compensation of the pull-out plate. The two adjustment sliding columns 14 installed on the first pull-out plate 10 are slidably connected to the first arc groove 6 respectively. The two adjustment sliding columns 14 installed on the third pull-out plate 12 are slidably connected to the second arc groove 8 respectively. The pull-out adjustment mechanism can flexibly adjust the extension length and tilt angle of each pull-out plate according to the size and shape of the item being cooled, which is convenient for placing items of different sizes.

[0025] A refrigeration compressor 29 is fixedly installed inside the housing 3. The refrigeration compressor 29 is the compressor used in existing refrigeration equipment. Its function is to provide refrigeration capacity for the system. The specific structure and working principle are not described here. A refrigeration pipe 30 is fixedly installed at the output end of the refrigeration compressor 29. The refrigeration pipe 30 serves as a refrigerant delivery channel. The refrigeration pipe 30 is fixedly connected to the bottom of the housing 3. A cooling plate 31 is fixedly installed on the refrigeration pipe 30. The cooling plate 31 is used to uniformly cool the inside of the inner liner 5.

[0026] A vacuum unit 15 is fixedly installed inside the housing 3. The vacuum unit 15 is a vacuum pump set used in existing vacuum equipment. Its function is to remove air from the inner liner 5 to create a vacuum environment. The specific structure and working principle are not described here. The suction end of the vacuum unit 15 is fixedly connected to a vacuum tube 16. The vacuum tube 16 is fixedly connected to the inner liner 5. A filter assembly can be installed on the vacuum tube 16 to prevent impurities or water vapor from entering the vacuum unit 15.

[0027] The exhaust end of the vacuum unit 15 is fixedly connected to an exhaust pipe 17, which is fixedly connected to the housing 3. An exhaust hood 28 is fixedly installed at one end of the exhaust pipe 17, which is used to guide the extracted gas to the outside of the housing 3.

[0028] A water-catching shell 18 is fixedly installed on the inner wall of the housing 3. Multiple rotating shafts 19 are rotatably installed inside the water-catching shell 18. Multiple condensing plates 20 are fixedly installed on each rotating shaft 19. The condensing plates 20 are used to capture water vapor released by the items during the vacuum precooling process and condense water on their surface. The rotating shafts 19 drive the condensing plates 20 to rotate, preventing the condensation on the condensing plates 20 from frosting. The multiple condensing plates 20 are all fixedly connected to the refrigeration compressor 29, which provides cooling for the condensing plates 20. In actual use, the condensing plates 20 and the refrigeration pipes 30 operate in shifts. The refrigeration plates are the main source of precooling. After freezing is completed, the refrigeration compressor 29 provides cooling for the multiple condensing plates 20. After each precooling is completed, the multiple condensing plates 20 are driven to capture water.

[0029] An inclined plate 24 is slidably installed inside the water-catching shell 18. The inclined plate 24 is used to collect condensate into the drain hole 25. The lower end of the water-catching shell 18 is fixedly connected to the drain hole 25. The lower end of the drain hole 25 is fixedly connected to the water supply pipe 26. The water supply pipe 26 is fixedly connected to the box body 3. The lower end of the box body 3 is fixedly installed with a water tank 27. The water tank 27 is used to collect condensate. The water supply pipe 26 is fixedly connected to the water tank 27. One side of the inner liner 5 is fixedly connected to an air outlet 23. One side of the air outlet 23 is fixedly connected to a ventilation pipe 21. The ventilation pipe 21 has multiple ventilation holes 22 that cooperate with the condensing plate 20. The cooperation between the ventilation holes 22 and the condensing plate 20 can make the airflow between the inner liner 5 and the water-catching shell 18 smooth, thereby improving the water vapor capture efficiency.

[0030] The rotating sealing mechanism consists of a first rotating disk 34, an arc groove 35, a rotating column 36, a sliding strip 37, a sealing strip 38, a second rotating disk 39, and a vertical groove 40. The first rotating disk 34 is rotatably connected to the inside of the rotating door 4. Two arc grooves 35 are provided on the first rotating disk 34, and a rotating column 36 is slidably installed in each arc groove 35. Sliding strips 37 are fixedly installed on the two rotating columns 36, and sealing strips 38 are fixedly installed at both ends of the two sliding strips 37. The second rotating disk 39 is rotatably connected to the inside of the rotating door 4. Two vertical grooves 40 are provided on the second rotating disk 39, and each rotating column 36 is slidably connected to the corresponding two vertical grooves 40. The two sealing strips 38 are slidably connected to the inside of the rotating door 4. Through the relative rotation of the first rotating disk 34 and the second rotating disk 39, the arc grooves 35 and the vertical grooves 40 jointly guide the movement trajectory of the rotating column 36, thereby causing the sliding strips 37 and the sealing strips 38 to extend outward or retract inward.

[0031] A sealing frame 32 is fixedly installed at one end of the housing 3. The upper and lower ends of the sealing frame 32 are respectively provided with sealing grooves 33 corresponding to the sealing strips 38. The two sealing strips 38 are slidably connected to the corresponding sealing grooves 33. When the sealing strips 38 are extended, they are tightly embedded in the sealing grooves 33 to achieve an airtight seal between the rotating door 4 and the housing 3.

[0032] The present invention discloses a method for using a vacuum pre-cooling and quick-freezing integrated machine, comprising the following steps: S1: Connect the power supply line to power the vacuum pre-cooling and quick-freezing integrated machine. Open the rotating door 4 and place the items to be pre-cooled or quick-frozen on the pull-out adjustment mechanism in the inner liner 5. According to the size and shape of the items, place them on the first pull-out plate 10, the second pull-out plate 11 and the third pull-out plate 12. Pull the first pull-out plate 10 to make the sliding column 9 slide along the first arc groove 6. At the same time, adjust the sliding column 14 to move in the adjustment groove 13 to realize the extension or retraction of the first pull-out plate 10. S2: Close the rotating door 4 and seal the box 3 by rotating the sealing mechanism. Rotate the first rotating disk 34. The arc groove 35 on the first rotating disk 34 pushes the rotating column 36 to move along the vertical groove 40 on the second rotating disk 39. The rotating column 36 drives the sliding strip 37 to slide outward. The sealing strips 38 at both ends of the sliding strip 37 extend outward and are tightly embedded in the sealing grooves 33 at the upper and lower ends of the sealing frame 32, so as to achieve an airtight seal between the door and the box 3. Reverse rotation of the first rotating disk 34 can release the seal. S3: Start the vacuum unit 15. The vacuum unit 15 evacuates the inner liner 5 through the vacuum tube 16. The filter assembly 8 installed on the vacuum tube 16 can prevent impurities or water vapor from entering the vacuum unit 15. The extracted gas is discharged to the outside of the box 3 through the exhaust pipe 17 and the exhaust hood 28. S4: Start the refrigeration compressor 29. At this time, the refrigeration compressor 29 is only used for pre-cooling. The refrigerant is delivered to the cooling plate 31 through the refrigeration pipe 30. The cooling plate 31 cools the inner liner 5, causing the temperature of the items to drop. The ventilation hole 22 in the cabinet 3 works with the air outlet 23 and the ventilation pipe 21 to keep the airflow circulating smoothly. S5: When the temperature of the item drops to the preset pre-cooling temperature, the cooling compressor 29 is turned off to cool the cooling plate 31, and the pre-cooling stage ends. Then, the refrigeration compressor 29 is restarted, and the refrigerant is switched to the condenser plate 20 inside the water-catching shell 18. Multiple rotating shafts 19 drive the condenser plate 20 to rotate, and begin to capture the water vapor released by the item during the vacuum pre-cooling process. The rotating condenser plate 20 causes the water vapor to condense into frost or water on its surface. The condensed water flows into the drain hole 25 along the inclined plate 24, and then enters the water tank 27 for collection through the water supply pipe 26. At the same time, the vacuum unit 15 continues to draw a vacuum. The ventilation hole 22 inside the water-catching shell 18 cooperates with the air outlet 23 and the ventilation pipe 21 to make the airflow between the inner liner 5 and the condenser plate 20 smooth. The item continues to cool down due to the evaporation of water and enters the quick-freezing stage. S6: After quick-freezing is complete, turn off the vacuum unit 15 and the refrigeration compressor 29, open the valve on the ventilation pipe 21 to allow outside air to slowly enter the interior of the box 3, restore normal pressure, rotate the first rotating plate 34 in the reverse direction, the sealing strip 38 exits from the sealing groove 33, open the rotating door 4, and pull out the first pull plate 10, the second pull plate 11 and the third pull plate 12 in sequence through the pull adjustment mechanism to take out the items after quick-freezing.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A vacuum pre-cooling and quick-freezing integrated machine, comprising a mounting base (1) and a housing (3), wherein an inner liner (5) is fixedly installed inside the housing (3), characterized in that, Also includes: The pull-out adjustment mechanism consists of a first arc-shaped groove (6), a straight groove (7), a second arc-shaped groove (8), a sliding column (9), a first pull-out plate (10), a second pull-out plate (11), a third pull-out plate (12), an adjustment groove (13), and an adjustment sliding column (14). The first arc-shaped groove (6), the straight groove (7), and the second arc-shaped groove (8) are respectively opened on both sides of the inner wall of the inner liner (5). Corresponding sliding columns (9) are slidably installed in the two first arc-shaped grooves (6). The first pull-out plate (10) is fixedly installed between the two sliding columns (9). Sliding columns (9) are slidably installed in the two straight grooves (7). Each pair of opposite sliding columns (9) is adjusted according to the sliding column (9). A second pull plate (11) is fixedly installed between the sliding columns (9), and two sliding columns (9) are slidably installed in the two second arc-shaped grooves (8). A third pull plate (12) is fixedly installed between the two sliding columns (9). An adjustment groove (13) is provided at both ends of the first pull plate (10) and the second pull plate (11). An adjustment column (14) is slidably installed in each adjustment groove (13). The two adjustment columns (14) installed on the first pull plate (10) are slidably connected to the first arc-shaped groove (6), and the two adjustment columns (14) installed on the third pull plate (12) are slidably connected to the second arc-shaped groove (8).

2. The vacuum precooling and quick-freezing integrated machine according to claim 1, characterized in that, Support columns (2) are fixedly installed on each of the multiple mounting bases (1), and boxes (3) are fixedly installed on each of the multiple support columns (2). A rotating door (4) is rotatably installed on one side of the box (3).

3. The vacuum precooling and quick-freezing integrated machine according to claim 2, characterized in that, Also includes: The rotating sealing mechanism consists of a first rotating disk (34), an arc groove (35), a rotating column (36), a sliding strip (37), a sealing strip (38), a second rotating disk (39), and a vertical groove (40). The first rotating disk (34) is rotatably connected to the inner side of the rotating door (4). Two arc grooves (35) are opened on the first rotating disk (34). A rotating column (36) is slidably installed in each arc groove (35). A sliding strip (37) is fixedly installed on the two rotating columns (36). A sealing strip (38) is fixedly installed at both ends of the two sliding strips (37). The second rotating disk (39) is rotatably connected to the inner side of the rotating door (4). Two vertical grooves (40) are opened on the second rotating disk (39). Each rotating column (36) is slidably connected to the corresponding two vertical grooves (49). The two sealing strips (38) are slidably connected to the inner side of the rotating door (4).

4. The vacuum precooling and quick-freezing integrated machine according to claim 1, characterized in that, A sealing frame (32) is fixedly installed at one end of the box (3). The upper and lower ends of the sealing frame (32) are respectively provided with sealing grooves (33) corresponding to the sealing strips (38). The two sealing strips (38) are slidably connected to the corresponding sealing grooves (33).

5. A vacuum precooling and quick-freezing integrated machine according to claim 1, characterized in that, A refrigeration compressor (29) is fixedly installed inside the housing (3). A refrigeration pipe (30) is fixedly installed at the output end of the refrigeration compressor (29). The refrigeration pipe (30) is fixedly connected to the bottom of the housing (3). A cooling plate (31) is fixedly installed on the refrigeration pipe (30).

6. The vacuum precooling and quick-freezing integrated machine according to claim 1, characterized in that, A vacuum unit (15) is fixedly installed inside the box (3). The suction end of the vacuum unit (15) is fixedly connected to a vacuum tube (16), and the vacuum tube (16) is fixedly connected to the inner liner (5).

7. A vacuum pre-cooling and quick-freezing integrated machine according to claim 6, characterized in that, The exhaust end of the vacuum unit (15) is fixedly connected to an exhaust pipe (17), the exhaust pipe (17) is fixedly connected to the housing (3), and an exhaust cover (28) is fixedly installed at one end of the exhaust pipe (17).

8. The vacuum precooling and quick-freezing integrated machine according to claim 1, characterized in that, The inner wall of the box (3) is fixedly installed with a water-catching shell (18), and multiple rotating shafts (19) are rotatably installed inside the water-catching shell (18). Multiple condensing plates (20) are fixedly installed on each of the rotating shafts (19).

9. A vacuum pre-cooling and quick-freezing integrated machine according to claim 8, characterized in that, An inclined plate (24) is slidably installed inside the water-catching shell (18). A drain hole (25) is fixedly connected to the lower end of the water-catching shell (18). A water supply pipe (26) is fixedly connected to the lower end of the drain hole (25). The water supply pipe (26) is fixedly connected to the box body (3). A water tank (27) is fixedly installed at the lower end of the box body (3). The water supply pipe (26) is fixedly connected to the water tank (27). An air outlet (23) is fixedly connected to one side of the inner liner (5). An air exchange pipe (21) is fixedly connected to one side of the air outlet (23). A plurality of air exchange holes (22) that cooperate with the condenser plate (20) are opened on the air exchange pipe (21).

10. A method of using a vacuum precooling and quick-freezing integrated machine, comprising using the vacuum precooling and quick-freezing integrated machine as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Connect the power supply line to power the vacuum pre-cooling and quick-freezing integrated machine, open the rotating door (4), place the items to be pre-cooled or quick-frozen on the pull-out adjustment mechanism in the inner liner (5), and place them on the first pull-out plate (10), the second pull-out plate (11) and the third pull-out plate (12) according to the size and shape of the items. Pull the first pull-out plate (10) to make the sliding column (9) slide along the first arc groove (6), and at the same time adjust the sliding column (14) to move in the adjustment groove (13) to realize the extension or retraction of the first pull-out plate (10); S2: Close the rotating door (4), seal the box (3) by rotating the sealing mechanism, rotate the first rotating disk (34), the arc groove (35) on the first rotating disk (34) pushes the rotating column (36) to move along the vertical groove (40) on the second rotating disk (39), the rotating column (36) drives the sliding strip (37) to slide outward, the sealing strip (38) at both ends of the sliding strip (37) extends out and is tightly embedded in the sealing groove (33) at both ends of the sealing frame (32), so as to achieve an airtight seal between the door and the box (3). Reverse rotation of the first rotating disk (34) can release the seal. S3: Start the vacuum unit (15). The vacuum unit (15) evacuates the inner liner (5) through the vacuum tube (16). The filter assembly (8) installed on the vacuum tube (16) can prevent impurities or water vapor from entering the vacuum unit (15). The extracted gas is discharged to the outside of the box (3) through the exhaust pipe (17) and the exhaust hood (28). S4: Start the refrigeration compressor (29). At this time, the refrigeration compressor (29) is only used for pre-cooling. The refrigerant is delivered to the cooling plate (31) through the refrigeration pipe (30). The cooling plate (31) cools the inner liner (5) to lower the temperature of the items. The ventilation hole (22) in the cabinet (3) works with the air outlet (23) and ventilation pipe (21) to keep the airflow circulating smoothly. S5: When the temperature of the item drops to the preset pre-cooling temperature, the refrigeration compressor (29) is turned off to cool the cooling plate (31), and the pre-cooling stage ends. Then, the refrigeration compressor (29) is restarted and the refrigerant is switched to the condenser plate (20) inside the water-catching shell (18). Multiple rotating shafts (19) drive the condenser plate (20) to rotate and start to capture the water vapor released by the item during the vacuum pre-cooling process. The rotating condenser plate (20) causes the water vapor to condense into frost or water on its surface. The condensed water flows into the drain hole (25) along the inclined plate (24) and then enters the water tank (27) for collection through the water supply pipe (26). At the same time, the vacuum unit (15) continues to draw a vacuum. The ventilation hole (22) inside the water-catching shell (18) cooperates with the air outlet (23) and ventilation pipe (21) to make the airflow between the inner liner (5) and the condenser plate (20) smooth. The item continues to cool down due to the evaporation of water and enters the quick-freezing stage. S6: After quick-freezing is completed, turn off the vacuum unit (15) and the refrigeration compressor (29), open the valve on the ventilation pipe (21) to allow outside air to slowly enter the box (3) and restore normal pressure. Rotate the first rotating plate (34) in the opposite direction, and the sealing strip (38) will exit from the sealing groove (33). Open the rotating door (4) and pull out the first pull plate (10), the second pull plate (11) and the third pull plate (12) in sequence through the pull adjustment mechanism to take out the items after quick-freezing.

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