Safe prefabricated product quick-freezing equipment

Abstract

The invention relates to the technical field of prefabricated vegetable production, in particular to safety type prefabricated product quick-freezing equipment which comprises a quick-freezing box and a bearing box, a transmission belt is rotatably mounted in the quick-freezing box, a plurality of lifting mechanisms are slidably mounted in the quick-freezing box, and the lifting mechanisms are in driving connection with the transmission belt; a first conveying table is arranged at a feed port of the quick-freezing box, and a second conveying table is arranged at a discharge port of the quick-freezing box; the device has the beneficial effects that the cold supply mechanism and the receiving mechanism are arranged, when the lifting mechanism lifts the bearing box to ascend, a sliding block is clamped in a matching groove, cold air enters the bearing box to freeze a prefabricated product, through the arrangement, the device can continuously freeze the prefabricated product in transportation, the working efficiency is effectively improved, and the practicability is high. Wherein the blocking plate can block the sliding cavity along with ascending of the sliding block, and energy waste caused by the fact that cold air directly enters the quick-freezing box through the sliding cavity can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated food production, and particularly relates to a safe quick-freezing device for prefabricated products. Background Art

[0002] In the modern food processing industry, the production of prefabricated products (such as quick-frozen dumplings, glutinous rice balls, meatballs, etc.) has increasingly higher requirements for hygienic safety and production efficiency. Among them, the quick-freezing process, as a key link to ensure the taste and shelf life of products, is widely processed using quick-freezing equipment. Traditional quick-freezing equipment mostly has an intermittent structure, such as a tunnel quick-freezing machine or a box-type quick-freezing device, which has certain limitations in actual use.

[0003] Firstly, existing equipment usually needs to place prefabricated products at a fixed position for freezing, and then carry out the operation of the next batch after one batch is completed. This method not only takes a long time, but also easily causes uneven temperatures of products in the front and back batches, affecting the consistency of product quality. Secondly, manual loading and unloading of materials increases the operation time and also raises the risk of cross-contamination, which is not conducive to food safety control. In addition, traditional equipment lacks a good connection mechanism between the transportation and freezing processes, resulting in a low overall working efficiency and being difficult to meet the needs of large-scale continuous production.

[0004] Therefore, a safe quick-freezing device for prefabricated products is needed to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems, that is, to solve the problem that the existing quick-freezing equipment for prefabricated products is difficult to meet the needs of large-scale continuous production, the present invention provides a safe quick-freezing device for prefabricated products.

[0006] A safe quick-freezing device for prefabricated products includes a quick-freezing box and a loading box. A conveyor belt is rotatably installed inside the quick-freezing box, and a plurality of lifting mechanisms are slidably installed. The lifting mechanisms are drivingly connected to the conveyor belt. A first conveyor platform is arranged at the feeding port of the quick-freezing box, and a second conveyor platform is arranged at the discharging port of the quick-freezing box. One ends of the first conveyor platform and the second conveyor platform located inside the quick-freezing box are both cross-arranged with the slidably arranged lifting mechanisms. A cooling supply mechanism is slidably arranged inside the quick-freezing box, and a receiving mechanism is arranged on the loading box. When the lifting mechanism lifts the loading box on the first conveyor platform, the receiving mechanism is in fluid communication with the cooling supply mechanism.

[0007] Preferably, the cooling mechanism includes a refrigerator, an air supply hole, a sliding cavity, and a slider. The refrigerator is disposed at the top of the quick-freezing box. The air supply hole is opened in the front box wall of the quick-freezing box. The top end of the air supply hole is in fluid communication with the air outlet of the refrigerator. The sliding cavity is opened in the front inside of the quick-freezing box and is located directly above the feeding port. The top view of the sliding cavity is convex-shaped. The bottom end of the air supply hole is connected to the bottom end of the sliding cavity. The top view of the slider is convex-shaped to match the sliding cavity. The slider slides in the sliding cavity. One end of the slider extends into the quick-freezing box. An air vent is opened inside the slider, and both ends of the air vent are respectively connected to positions near both ends of the bottom of the slider.

[0008] Preferably, a storage cavity is opened in the front box wall of the quick-freezing box. The storage cavity is located below the sliding cavity and is connected to the bottom end of the sliding cavity. A second torsion spring shaft is rotatably installed inside the storage cavity. A baffle is wound around the outer surface of the second torsion spring shaft. One end of the baffle extends into the sliding cavity and is fixedly connected to the lower surface of the slider. The width of the baffle is greater than the width of the slider. Card slots are opened on both sides of the sliding cavity, and both sides of the baffle slide in the two card slots respectively. The setting of the card slots can enhance the blocking effect of the baffle.

[0009] Preferably, the receiving mechanism includes a matching groove. The matching groove is opened at one end of the upper surface of the carrier box and matches a part of the slider extending into the quick-freezing box. An inflation hole is communicatedly opened in the bottom wall and one side wall of the carrier box. The top end of the inflation hole is connected to the matching groove. A second one-way valve is provided at a position near the top end inside the inflation hole. The side of the inflation hole is connected to the inside of the carrier box through an air inlet hole. The second one-way valve can prevent the liquid in the carrier box from flowing back.

[0010] Preferably, a box cover is rotatably installed on the top of the carrier box through a first torsion spring shaft. An air outlet hole is opened through the box cover, and a first one-way valve is provided inside the air outlet hole. By providing the cooling mechanism and the receiving mechanism, when the lifting mechanism lifts the carrier box, the slider is stuck in the matching groove, and cold air enters the carrier box to freeze the prefabricated product. This setting enables the device to continuously freeze the prefabricated product during transportation, effectively improving the working efficiency. Among them, the baffle can block the sliding cavity as the slider rises, preventing cold air from directly entering the quick-freezing box through the sliding cavity and causing energy waste.

[0011] Preferably, an upper turntable and a lower turntable are respectively rotatably installed at positions near the top and near the bottom on one side inside the quick-freezing box. The upper turntable and the lower turntable are connected by the transmission belt. A motor is fixedly installed outside the quick-freezing box. The output shaft of the motor extends into the quick-freezing box and is coaxially fixedly connected to the lower turntable through a linkage shaft. A plurality of through holes are formed through the transmission belt.

[0012] Preferably, two annular chutes are formed on one side inside the quick-freezing box near the upper turntable and the lower turntable. The lifting mechanism includes a connecting plate. Both ends on the back of the connecting plate are fixedly installed with sliding rods. The two sliding rods are respectively slid in the two chutes. A connecting rod is fixedly installed at the middle position on the front of the connecting plate. The connecting rod penetrates through the through hole. A horizontal mounting seat is fixedly installed on the front of the connecting rod. A plurality of lifting rods are fixedly installed at equal intervals on the front of the mounting seat; the connecting plate is restricted by the two chutes, so that the connecting plate will not rotate when sliding along with the transmission belt, thereby ensuring the stability of the carrying box on the lifting rod. In addition, when the carrying box rises, it is connected to the slider. When the carrying box moves to the top and starts to move away from the slider, the slider gradually disengages from the matching groove, and then the slider quickly slides down and resets under the action of the second torsion spring shaft and is connected to the carrying box on the next lifting mechanism. This setting perfectly solves the problem of the lack of a good connection mechanism between the traditional equipment during transportation and freezing, and further improves the work efficiency.

[0013] Preferably, the feeding port is formed through the position near the bottom end on the front of the quick-freezing box, and the discharging port is formed through the position near the top end on the back of the quick-freezing box. The first conveying platform penetrates through the feeding port. A limiting plate is fixedly installed at the inner end of the first conveying platform. The first conveying platform is composed of a plurality of round rods and side rods. When the lifting rod moves to the position of the first conveying platform, the round rods on the first conveying platform are staggered with the lifting rods. The first conveying platform is gradually lowered from outside to inside. The second conveying platform penetrates through the discharging port. The second conveying platform is composed of a plurality of round rods and side rods. When the lifting rod moves to the position of the second conveying platform, the round rods on the second conveying platform are staggered with the lifting rods. The second conveying platform is gradually lowered from inside to outside; by setting the first conveying platform and the second conveying platform, and making the first conveying platform gradually lower from outside to inside and the second conveying platform gradually lower from inside to outside, the staff only needs to place the carrying box on the first conveying platform, and the carrying box can automatically slide into the quick-freezing box and then be lifted by the lifting rod. When the lifting rod moves to the second conveying platform, the carrying box is blocked by the second conveying platform and then slides out along the second conveying platform. This setting facilitates the staff to load and unload materials.

[0014] Preferably, a receiving box is provided at one end of the second conveying table away from the quick-freezing box. The receiving box is connected to the quick-freezing box through a reinforcing rod. The top end of the receiving box is a transparent end. A support plate is slidably installed inside the receiving box through a resisting spring. A material-taking opening is penetrated and provided at a position near the bottom end on one side of the receiving box. By providing the receiving box and slidably arranging the support plate inside the receiving box through the resisting spring, after the carrying box sliding out from the second conveying table falls onto the support plate, it can slowly descend under the action of the resisting spring, and the operator can take out the carrying box from the material-taking opening, which is convenient for operation.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By providing a cooling mechanism and a receiving mechanism, when the lifting mechanism lifts the carrying box upward, the slider is stuck in the matching groove, and cold air enters the carrying box to freeze the prefabricated products. This setting enables the device to continuously freeze the prefabricated products during transportation, effectively improving the working efficiency. Among them, the blocking plate can block the sliding cavity as the slider rises, and can prevent cold air from directly entering the quick-freezing box through the sliding cavity, causing energy waste.

[0017] 2. The present invention restricts the connecting plate through two sliding grooves, so that the connecting plate will not rotate when sliding along with the conveyor belt, thereby ensuring the stability of the carrying box on the lifting rod. In addition, when the carrying box rises, it is connected to the slider. When the carrying box moves to the top and starts to move away from the slider, the slider gradually disengages from the matching groove, and then the slider quickly slides down and resets under the action of the second torsion spring shaft, and is connected to the carrying box on the next lifting mechanism. This setting perfectly solves the problem that the traditional equipment lacks a good connection mechanism between the transportation and freezing processes, and further improves the working efficiency.

[0018] 3. By providing the first conveying table and the second conveying table, and making the first conveying table gradually decrease from outside to inside and the second conveying table gradually decrease from inside to outside, the staff only needs to place the carrying box on the first conveying table, and the carrying box can automatically slide into the quick-freezing box and then be lifted by the lifting rod. When the lifting rod moves to the second conveying table, the carrying box is blocked by the second conveying table and then slides out along the second conveying table. This setting is convenient for the staff to load and unload materials.

[0019] 4. By providing the receiving box and slidably arranging the support plate inside the receiving box through the resisting spring, after the carrying box sliding out from the second conveying table falls onto the support plate, it can slowly descend under the action of the resisting spring, and the operator can take out the carrying box from the material-taking opening, which is convenient for operation. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Structural schematic diagram of the first conveyor table and the second conveyor table of the present invention;

[0022] Figure 3 Structural schematic diagram of the upper turntable and the lower turntable of the present invention;

[0023] Figure 4 Structural schematic diagram of the chute of the present invention;

[0024] Figure 5 Structural schematic diagram of the lifting mechanism of the present invention;

[0025] Figure 6 Structural schematic diagram of the conveyor belt of the present invention;

[0026] Figure 7 Structural schematic diagram of the bearing box of the present invention;

[0027] Figure 8 Cross-sectional structural schematic diagram of the bearing box of the present invention;

[0028] Figure 9 Cross-sectional structural schematic diagram of the quick-freezing box of the present invention;

[0029] Figure 10 Structural schematic diagram of the slider of the present invention;

[0030] Figure 11 Cross-sectional structural schematic diagram of the material receiving box of the present invention.

[0031] In the figure:

[0032] 1. Quick-freezing box; 2. Bearing box; 3. Conveyor belt; 4. Feed inlet; 5. First conveyor table; 6. Discharge outlet; 7. Second conveyor table; 8. Refrigerator; 9. Air supply hole; 10. Slide cavity; 11. Slider; 12. Ventilation hole; 13. Storage cavity; 14. Second torsion spring shaft; 15. Baffle plate; 16. Card slot; 17. Matching slot; 18. Inflation hole; 19. Second one-way valve; 20. Air inlet hole; 21. First torsion spring shaft; 22. Box cover; 23. Air outlet hole; 24. First one-way valve; 25. Upper turntable; 26. Lower turntable; 27. Motor; 28. Through hole; 29. Chute; 30. Connecting plate; 31. Slide rod; 32. Connecting rod; 33. Mounting seat; 34. Lifting rod; 35. Limiting plate; 36. Material receiving box; 37. Reinforcing rod; 38. Thrust spring; 39. Support plate; 40. Material taking port. Detailed implementation manners

[0033] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0034] As Figures 1-3 andFigure 9 As shown in the figure, an embodiment of the present invention discloses a safe quick-freezing device for prefabricated products, which includes a quick-freezing box 1 and a carrying box 2. A conveyor belt 3 is rotatably installed inside the quick-freezing box 1, and a plurality of lifting mechanisms are slidably installed. The lifting mechanisms are drivingly connected to the conveyor belt 3. A first conveyor table 5 is arranged at the feed inlet 4 of the quick-freezing box 1, and a second conveyor table 7 is arranged at the discharge outlet 6 of the quick-freezing box 1. One ends of the first conveyor table 5 and the second conveyor table 7 located inside the quick-freezing box 1 are both cross-arranged with the slidably arranged lifting mechanisms. A cooling supply mechanism is slidably arranged inside the quick-freezing box 1, and a receiving mechanism is arranged on the carrying box 2. When the lifting mechanism lifts the carrying box 2 on the first conveyor table 5, the receiving mechanism is in fluid communication with the cooling supply mechanism.

[0035] As Figures 9-10 shown, the cooling supply mechanism includes a refrigerator 8, an air supply hole 9, a sliding cavity 10 and a slider 11. The refrigerator 8 is arranged at the top of the quick-freezing box 1. The air supply hole 9 is opened in the front box wall of the quick-freezing box 1. The top end of the air supply hole 9 is in fluid communication with the air outlet of the refrigerator 8. The sliding cavity 10 is opened on the front inside the quick-freezing box 1. The sliding cavity 10 is located directly above the feed inlet 4. The top view of the sliding cavity 10 is convex-shaped. The bottom end of the air supply hole 9 is connected to the bottom end of the sliding cavity 10. The top view of the slider 11 is convex-shaped to match the sliding cavity 10. The slider 11 slides inside the sliding cavity 10. One end of the slider 11 extends into the quick-freezing box 1. An air vent hole 12 is opened inside the slider 11. The two ends of the air vent hole 12 are respectively connected to the positions near both ends of the bottom of the slider 11.

[0036] As Figure 9 shown, a storage cavity 13 is opened in the front box wall of the quick-freezing box 1. The storage cavity 13 is located below the sliding cavity 10. The storage cavity 13 is connected to the bottom end of the sliding cavity 10. A second torsion spring shaft 14 is rotatably installed inside the storage cavity 13. A blocking plate 15 is wound around the outer surface of the second torsion spring shaft 14. One end of the blocking plate 15 extends into the sliding cavity 10 and is fixedly connected to the lower surface of the slider 11. The width of the blocking plate 15 is greater than the width of the slider 11. Card slots 16 are opened on both sides of the sliding cavity 10. Both sides of the blocking plate 15 slide in the two card slots 16 respectively; the setting of the card slots 16 can enhance the blocking effect of the blocking plate 15.

[0037] As Figures 7-8 shown, the receiving mechanism includes a matching groove 17. The matching groove 17 is opened at one end of the upper surface of the carrying box 2. The matching groove 17 matches a part of the slider 11 extending into the quick-freezing box 1. An inflation hole 18 is communicated and opened in the bottom wall and one side wall of the carrying box 2. The top end of the inflation hole 18 is connected to the matching groove 17. A second one-way valve 19 is arranged at a position near the top end inside the inflation hole 18. The side of the inflation hole 18 is connected to the inside of the carrying box 2 through an air inlet hole 20; the second one-way valve 19 can prevent the liquid in the carrying box 2 from flowing back.

[0038] As shown Figures 7-8 in the figure, the top of the carrying box 2 is rotatably installed with a box cover 22 through a first torsion spring shaft 21. An air outlet hole 23 is formed through the box cover 22, and a first one-way valve 24 is arranged inside the air outlet hole 23. By setting up a cooling mechanism and a receiving mechanism, when the lifting mechanism lifts the carrying box 2, the slider 11 is stuck in the matching groove 17, and cold air enters the carrying box 2 to freeze the prefabricated products. This setting enables the device to continuously freeze the prefabricated products during transportation, effectively improving the working efficiency. Among them, the partition plate 15 can block the sliding cavity 10 as the slider 11 rises, preventing cold air from directly entering the quick-freezing box 1 through the sliding cavity 10 and causing energy waste.

[0039] As shown Figure 1 and Figure 3 in the figure, an upper turntable 25 and a lower turntable 26 are respectively rotatably installed at positions near the top and near the bottom on one side inside the quick-freezing box 1. The upper turntable 25 and the lower turntable 26 are connected by a transmission belt 3. A motor 27 is fixedly installed outside the quick-freezing box 1. The output shaft of the motor 27 extends into the quick-freezing box 1 and is coaxially fixedly connected with the lower turntable 26 through a linkage shaft. A plurality of through holes 28 are formed through the transmission belt 3.

[0040] As shown Figures 4-5 in the figure, two annular sliding grooves 29 are formed on one side inside the quick-freezing box 1 near the upper turntable 25 and the lower turntable 26. The lifting mechanism includes a connecting plate 30. Both ends on the back of the connecting plate 30 are fixedly installed with sliding rods 31. The two sliding rods 31 respectively slide in the two sliding grooves 29. A connecting rod 32 is fixedly installed at the middle position on the front of the connecting plate 30. The connecting rod 32 passes through the through hole 28. A horizontal mounting seat 33 is fixedly installed on the front of the connecting rod 32. A plurality of lifting rods 34 are fixedly installed at equal intervals on the front of the mounting seat 33. By restricting the connecting plate 30 through the two sliding grooves 29, the connecting plate 30 will not rotate when following the transmission belt 3, thus ensuring the stability of the carrying box 2 on the lifting rods 34. In addition, when the carrying box 2 rises, it is connected to the slider 11. When the carrying box 2 moves to the top and starts to move away from the slider 11, the slider 11 gradually disengages from the matching groove 17, and then the slider 11 quickly slides down and resets under the action of the second torsion spring shaft 14 and is connected to the carrying box 2 on the next lifting mechanism. This setting perfectly solves the problem that traditional equipment lacks a good connection mechanism between the transportation and freezing processes, further improving the working efficiency.

[0041] As shown Figures 1-2As shown in the figure, the feed inlet 4 is penetrated and opened at a position near the bottom end of the front surface of the quick-freezing box 1, and the discharge outlet 6 is penetrated and opened at a position near the top end of the back surface of the quick-freezing box 1. The first conveyor table 5 is arranged through the feed inlet 4. A limiting plate 35 is fixedly installed at the inner end of the first conveyor table 5. The first conveyor table 5 is composed of multiple round rods and side rods. When the lifting rod 34 moves to the position of the first conveyor table 5, the round rods on the first conveyor table 5 and the lifting rod 34 are staggered. The first conveyor table 5 is arranged to gradually decrease from outside to inside. The second conveyor table 7 is arranged through the discharge outlet 6. The second conveyor table 7 is composed of multiple round rods and side rods. When the lifting rod 34 moves to the position of the second conveyor table 7, the round rods on the second conveyor table 7 and the lifting rod 34 are staggered. The second conveyor table 7 is arranged to gradually decrease from inside to outside. By arranging the first conveyor table 5 and the second conveyor table 7, and making the first conveyor table 5 gradually decrease from outside to inside and the second conveyor table 7 gradually decrease from inside to outside, the staff only needs to place the carrying box 2 on the first conveyor table 5, and the carrying box 2 can automatically slide into the quick-freezing box 1 and then be lifted by the lifting rod 34. When the lifting rod 34 moves to the second conveyor table 7, the carrying box 2 is blocked by the second conveyor table 7 and then slides out along the second conveyor table 7. This setting facilitates the staff to load and unload materials.

[0042] As Figure 1 and Figure 11 shown in the figure, a receiving box 36 is arranged at one end of the second conveyor table 7 far from the quick-freezing box 1. The receiving box 36 is connected to the quick-freezing box 1 through a reinforcing rod 37. The top end of the receiving box 36 is a transparent end. A support plate 39 is slidably installed inside the receiving box 36 through a resisting spring 38. A material taking port 40 is penetrated and opened at a position near the bottom end of one side of the receiving box 36. By arranging the receiving box 36 and slidably arranging the support plate 39 inside the receiving box 36 through the resisting spring 38, after the carrying box 2 sliding out from the second conveyor table 7 falls onto the support plate 39, it can slowly descend under the action of the resisting spring 38, and the operator can take out the carrying box 2 from the material taking port 40, which is convenient for operation.

[0043] It should be noted that in the description of the present invention, the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A safe prefabricated quick-freezing device, characterized in that, It includes a quick-freezing box (1) and a carrying box (2). A conveyor belt (3) is rotatably installed inside the quick-freezing box (1), and a plurality of lifting mechanisms are slidably installed. The lifting mechanisms are drivingly connected to the conveyor belt (3). A first conveyor table (5) is arranged at the feeding port (4) of the quick-freezing box (1), and a second conveyor table (7) is arranged at the discharging port (6) of the quick-freezing box (1). One ends of the first conveyor table (5) and the second conveyor table (7) located inside the quick-freezing box (1) are cross-arranged with the slidably arranged lifting mechanisms. A cooling supply mechanism is slidably arranged inside the quick-freezing box (1), and a receiving mechanism is arranged on the carrying box (2). When the lifting mechanism lifts the carrying box (2) on the first conveyor table (5), the receiving mechanism is in fluid communication with the cooling supply mechanism.

2. The safety type prefabricated quick-freezing device according to claim 1, characterized in that, The cooling supply mechanism includes a refrigerator (8), an air supply hole (9), a sliding cavity (10) and a slider (11). The refrigerator (8) is arranged at the top of the quick-freezing box (1). The air supply hole (9) is opened in the front box wall of the quick-freezing box (1). The top end of the air supply hole (9) is in fluid communication with the air outlet of the refrigerator (8). The sliding cavity (10) is opened in the front inside the quick-freezing box (1). The sliding cavity (10) is located directly above the feeding port (4). The top view of the sliding cavity (10) is convex-shaped. The bottom end of the air supply hole (9) is connected to the bottom end of the sliding cavity (10). The top view of the slider (11) is convex-shaped to match the sliding cavity (10). The slider (11) slides inside the sliding cavity (10). One end of the slider (11) extends into the inside of the quick-freezing box (1). An air vent hole (12) is opened inside the slider (11). Both ends of the air vent hole (12) are respectively connected to positions near both ends of the bottom of the slider (11).

3. The safety type prefabricated quick-freezing equipment according to claim 2, characterized in that, A storage cavity (13) is opened in the front box wall of the quick-freezing box (1). The storage cavity (13) is located below the sliding cavity (10). The storage cavity (13) is connected to the bottom end of the sliding cavity (10). A second torsion spring shaft (14) is rotatably installed inside the storage cavity (13). A blocking plate (15) is wound around the outer surface of the second torsion spring shaft (14). One end of the blocking plate (15) extends into the sliding cavity (10) and is fixedly connected to the lower surface of the slider (11). The width of the blocking plate (15) is greater than the width of the slider (11). Card slots (16) are opened on both sides of the sliding cavity (10). Both sides of the blocking plate (15) slide inside the two card slots (16) respectively.

4. A safety type prefabricated quick-freezing device according to claim 3, characterized in that, The receiving mechanism includes a matching groove (17), and the matching groove (17) is opened at one end of the upper surface of the carrying box (2). The matching groove (17) is matched with a part of the slider (11) extending into the quick-freezing box (1). An inflation hole (18) is communicated and opened in the bottom wall and one side wall of the carrying box (2). The top end of the inflation hole (18) is communicated with the matching groove (17). A second one-way valve (19) is arranged at a position close to the top end in the inflation hole (18). The side of the inflation hole (18) is communicated with the inside of the carrying box (2) through an air inlet hole (20).

5. The safety type prefabricated quick-freezing equipment according to claim 4, characterized in that, The top of the carrying box (2) is rotatably installed with a box cover (22) through a first torsion spring shaft (21). An air outlet hole (23) is penetrated through the box cover (22), and a first one-way valve (24) is arranged inside the air outlet hole (23).

6. The safety-type prefabricated quick-freezing equipment according to claim 1, characterized in that, On one side inside the quick-freezing box (1), an upper turntable (25) and a lower turntable (26) are respectively rotatably installed at positions close to the top and the bottom. The upper turntable (25) and the lower turntable (26) are connected by a transmission belt (3). A motor (27) is fixedly installed outside the quick-freezing box (1). The output shaft of the motor (27) extends into the quick-freezing box (1) and is coaxially and fixedly connected with the lower turntable (26) through a linkage shaft. A plurality of through holes (28) are penetrated through the transmission belt (3).

7. A safety-type prefabricated quick-freezing device according to claim 6, characterized in that, On one side inside the quick-freezing box (1) close to the upper turntable (25) and the lower turntable (26), two annular sliding grooves (29) are opened. The lifting mechanism includes a connecting plate (30). Both ends of the back surface of the connecting plate (30) are fixedly installed with sliding rods (31). The two sliding rods (31) slide in the two sliding grooves (29) respectively. A connecting rod (32) is fixedly installed at the middle position of the front surface of the connecting plate (30). The connecting rod (32) is arranged through the through hole (28). A horizontal mounting seat (33) is fixedly installed on the front surface of the connecting rod (32). A plurality of lifting rods (34) are fixedly installed at equal intervals on the front surface of the mounting seat (33).

8. A safety type prefabricated quick-freezing device according to claim 7, characterized in that, The feed inlet (4) is formed through the front surface of the quick-freezing box (1) near the bottom end, the discharge outlet (6) is formed through the back surface of the quick-freezing box (1) near the top end, the first conveyor table (5) is arranged through the feed inlet (4), a limiting plate (35) is fixedly installed at the inner end of the first conveyor table (5), the first conveyor table (5) is composed of a plurality of round rods and side rods, when the lifting rod (34) moves to the position of the first conveyor table (5), the round rods on the first conveyor table (5) and the lifting rod (34) are staggered, the first conveyor table (5) is arranged to gradually decrease from outside to inside, the second conveyor table (7) is arranged through the discharge outlet (6), the second conveyor table (7) is composed of a plurality of round rods and side rods, when the lifting rod (34) moves to the position of the second conveyor table (7), the round rods on the second conveyor table (7) and the lifting rod (34) are staggered, the second conveyor table (7) is arranged to gradually decrease from inside to outside.

9. A safety-type prefabricated quick-freezing device according to claim 8, characterized in that, A receiving box (36) is arranged at one end of the second conveyor table (7) away from the quick-freezing box (1), the receiving box (36) is connected to the quick-freezing box (1) through a reinforcing rod (37), the top end of the receiving box (36) is a transparent end, a support plate (39) is slidably installed inside the receiving box (36) through a jacking spring (38), and a material taking opening (40) is formed through one side of the receiving box (36) near the bottom end.

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