High-efficiency strong-convection tunnel type food quick-freezing device

Abstract

The application belongs to the technical field of food quick freezing, and particularly relates to a high-efficiency strong-convection tunnel type food quick freezing device. When only relying on vertical blowing of top cold air, there are airflow blind areas on both sides of food, uneven cooling, easy local freezing deficiency or local overfreezing, and inconsistent overall freezing effect. The following scheme is proposed, which comprises a quick freezing table, an ascending device arranged above the quick freezing table, a conveying belt arranged in the interior of the quick freezing table, a plurality of annular cold air pipes, a plurality of cold air heads arranged in the interior of the ascending device, and the plurality of cold air heads arranged above the conveying belt. The high-efficiency strong-convection tunnel type food quick freezing device disclosed by the application has a lateral airflow assembly which swings and sprays air from multiple angles on both sides, comprehensively wraps the sides of food with cold air, cooperates with top cold air to form three-dimensional surrounding airflow, avoids local freezing deficiency or overfreezing, makes the temperature of each part of food consistent, and significantly improves freezing uniformity.

Description

Technical Field

[0001] This invention relates to the field of food quick-freezing technology, and in particular to a high-efficiency, high-convection tunnel-type food quick-freezing device. Background Technology

[0002] Tunnel-type food quick-freezing equipment is the mainstream continuous rapid freezing equipment in the food industry. Its core is to allow food to pass through a low-temperature tunnel at a uniform speed on a conveyor belt. It achieves refrigeration and cooling by means of gas liquefaction and solidification, and completes rapid and uniform freezing by relying on strong convection cold air or ultra-low temperature medium, effectively locking in the freshness of food and reducing cell tissue damage.

[0003] In traditional single-top vertical air outlet quick-freezing mode, cold air can only act on the top surface of food, and the areas on both sides of the food become blind spots that the airflow cannot effectively cover. The poor air circulation and low heat exchange efficiency on both sides result in an uneven cooling rate of the food as a whole. This easily leads to some areas being underfrozen and others being overfrozen due to low temperature accumulation. Ultimately, this results in inconsistent freezing effects for the entire batch of food, making it difficult to maintain uniform product quality. Summary of the Invention

[0004] This invention discloses a high-efficiency, high-convection tunnel-type food quick-freezing device, which aims to solve the technical problems in the prior art where, when relying solely on vertical blowing of cold air from the top, there are airflow blind spots on both sides of the food, uneven cooling, and a tendency for localized insufficient freezing or overfreezing, resulting in inconsistent overall freezing effects.

[0005] This invention proposes a high-efficiency, high-convection tunnel-type food quick-freezing device, comprising: A quick-freezing table, with an lifting device installed above it; The conveyor belt is installed inside the quick-freezing table; Multiple annular cooling pipes are installed inside the rising device; Multiple air cooling heads are located above the conveyor belt; Multiple symmetrical lateral airflow components are arranged inside the lifting device. Each lateral airflow component includes two blowing pipes, which are located between the annular cooling pipe and the conveyor belt. The top end of each blowing pipe is fixedly connected to a connecting pipe, and the top end of each connecting pipe is fixedly connected to the bottom end of the annular cooling pipe. Two airflow regulating components are provided, both of which are located inside the lifting device. Each airflow regulating component includes multiple air blowing belts, and a connecting slide bar is provided above each of the multiple air blowing belts.

[0006] In a preferred embodiment, the lateral airflow assembly further includes: The U-shaped frame is fixedly connected to the inside of the lifting device on one side. The motor frame is fixedly connected to the inside of the U-shaped frame on one side. The drive motor is fixedly connected to the inner side of the motor frame on its outer side, and the power output shaft of the drive motor is connected to a rotating gear through a coupling.

[0007] In a preferred embodiment, the lateral airflow assembly further includes: A gear plate is disposed on the upper side of a rotating gear, and the gear plate meshes with the rotating gear through tooth grooves; The rotating rod has both ends movably connected to the inner sides of the U-shaped frame, and the inner side of the gear plate is fixedly connected to the outer side of the rotating rod. Two extension frames are provided, with one end of each extension frame fixedly connected to the outer side of the rotating rod, and the gear plate is located between the two extension frames.

[0008] In a preferred embodiment, the lateral airflow assembly further includes: The mounting rods are all fixedly connected to the inner side of the extension frame away from the rotating rod on the outside. A connecting plate is fixedly connected to the outside of the mounting rods, and the connecting plate is located between the two extension frames. A fixing rod is fixedly connected to the inner side of the connecting plate on its outer side, and both ends of the fixing rod are fixedly connected to the opposite side of the air blowing pipe.

[0009] In a preferred embodiment, the airflow regulating component further includes: A servo motor, the top of which is fixedly connected to the inside of the top of the lifting device, and the power output shaft of the servo motor is connected to a rotating base through a coupling; Multiple connecting rods are provided, with each connecting rod having its opposite side fixedly connected to the outside of the rotating base. The bottom end of each connecting rod is movably connected to a rotating gear. The extension frame has its top end fixedly connected to the inside of the top end of the lifting device, and all the rotating gears are located inside the extension frame.

[0010] In a preferred embodiment, the airflow regulating component further includes: The gear ring is fixedly connected to the inner side of the bottom end of the extension frame on its outer side, and the gear ring and the rotating gear are meshed through tooth grooves. Multiple lower ring components, the top ends of which are fixedly connected to the bottom end of the rotating gear, and the inner sides of the bottom ends of the lower ring components are fixedly connected to the outer sides of the connecting slide bar. Multiple connecting ropes, the top ends of which are fixedly connected to the bottom end of the connecting slide bar.

[0011] In a preferred embodiment, the airflow regulating component further includes: Multiple pulleys are provided, all of which are located on the outside of the connecting slide bar, and each pulley is fixedly connected to a connecting piece on its outside. Multiple support plates are provided, with their top ends fixedly connected to the bottom end of the connecting rope. The outer sides of each support plate are fixedly connected to the end of the connector away from the pulley, and the bottom ends of each support plate are fixedly connected to the top end of the blower belt.

[0012] In a preferred embodiment, it also includes: The control cabinet is fixedly connected to the outside of the quick-freezing table; The testing box is fixedly connected to the outside of the quick-freezing table; Two symmetrical fixed seats are fixedly connected to the outside of the quick-freezing table on opposite sides. Each fixed seat has a round hole, and a lifting hydraulic rod is installed inside the round hole. The bottom end of the lifting hydraulic rod is in contact with the ground.

[0013] In a preferred embodiment, it also includes: Two symmetrical external frames are fixedly connected to the outside of the lifting device on opposite sides, and the inner sides of the external frames are set on the outside of the lifting hydraulic rod. Two rotating rollers are located on the inner sides of both ends of the quick-freezing table; Multiple sliding wheels are provided, with the inner sides of each sliding wheel fixedly connected to the outer side of the rotating roller. The inner sides of both ends of the conveyor belt are located on the outer side of the sliding wheels.

[0014] In a preferred embodiment, it also includes: A fan, the top of which is fixedly connected to the bottom of the lifting device, is located between two airflow regulating components; Multiple horizontal tubes are fixedly connected at both ends to the inside of the annular air conditioning tube, and multiple air conditioning heads are fixedly connected to the bottom of the multiple horizontal tubes.

[0015] As can be seen from the above, the efficient and strong convection tunnel-type food quick-freezing device provided by the present invention has the beneficial effect of the side airflow component swinging and spraying air from both sides at multiple angles, the cold air fully wrapping the sides of the food, and forming a three-dimensional surrounding airflow in combination with the top cold air, avoiding local insufficient freezing or over-freezing, so that the temperature of all parts of the food is consistent and the freezing uniformity is significantly improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 2 This is a schematic diagram of the internal structure of the lifting device of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 3This is a schematic diagram of the internal structure of the conveyor belt of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 4 This is a schematic diagram of the annular cold air pipe section of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 5 This is a schematic diagram of the lateral airflow assembly structure of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 6 This is a schematic diagram of the lateral airflow component of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 7 This is a schematic diagram of the airflow regulating component structure of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention. Figure 8 This is a schematic diagram of the airflow regulation component of a high-efficiency, high-convection tunnel-type food quick-freezing device proposed in this invention.

[0017] In the diagram: 1. Quick-freezing table; 2. Lifting device; 3. Control cabinet; 4. Detection box; 5. Fixed base; 6. Lifting hydraulic rod; 7. External frame; 8. Rotating roller; 9. Pulley; 10. Lateral airflow assembly; 1001. U-shaped frame; 1002. Rotating rod; 1003. Gear plate; 1004. Rotating gear; 1005. Motor frame; 1006. Drive motor; 1007. Extension frame; 1008. Mounting rod; 1009. Connecting plate; 1010. Fixed rod; 1011. Air blowing pipe; 012. Connecting pipe; 11. Fan; 12. Annular cooling pipe; 13. Conveyor belt; 14. Horizontal pipe; 15. Cooling head; 16. Airflow regulating component; 1601. Servo motor; 1602. Rotary seat; 1603. Connecting rod; 1604. Rotating gear; 1605. Gear ring; 1606. Extension frame; 1607. Lower ring; 1608. Connecting slide bar; 1609. Connecting rope; 1610. Pulley; 1611. Connector; 1612. Support plate; 1613. Air blowing belt. Detailed Implementation

[0018] 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.

[0019] The high-efficiency, high-convection tunnel-type food quick-freezing device disclosed in this invention is mainly used in scenarios where only the top cold air is blown vertically, there are airflow blind spots and uneven cooling on both sides of the food, which easily leads to local underfreezing or local overfreezing, and inconsistent overall freezing effect.

[0020] Reference Figures 1-8A high-efficiency, high-convection tunnel-type food quick-freezing device, comprising: A quick-freezing table 1 is provided, and a lifting device 2 is provided above the quick-freezing table 1; Conveyor belt 13 is installed inside the quick-freezing table 1; Multiple annular cooling pipes 12 are installed inside the rising device 2. Multiple air cooling heads 15 are arranged above the conveyor belt 13; Multiple symmetrical lateral airflow components 10 are arranged inside the lifting device 2. Each lateral airflow component 10 includes two blowing pipes 1011. The blowing pipes 1011 are located between the annular cooling pipe 12 and the conveyor belt 13. The top end of each blowing pipe 1011 is fixedly connected to a connecting pipe 1012. The top end of each connecting pipe 1012 is fixedly connected to the bottom end of the annular cooling pipe 12. Two airflow regulating components 16 are provided inside the lifting device 2. Each airflow regulating component 16 includes multiple air blowing belts 1613, and a connecting slide bar 1608 is provided above each of the multiple air blowing belts 1613.

[0021] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, the lateral airflow assembly 10 further includes: U-shaped frame 1001, one side of which is fixedly connected to the inside of the lifting device 2; Motor frame 1005, one side of motor frame 1005 is fixedly connected to the inside of U-shaped frame 1001; The drive motor 1006 is fixedly connected to the inner side of the motor frame 1005 on the outside. The power output shaft of the drive motor 1006 is connected to the rotating gear 1004 through a coupling.

[0022] In this invention, the lateral airflow assembly 10 further includes: Gear plate 1003 is disposed on the upper side of rotating gear 1004, and gear plate 1003 and rotating gear 1004 mesh with each other through tooth grooves; The rotating rod 1002 has both ends movably connected to the inner sides of the U-shaped frame 1001, and the inner side of the gear plate 1003 is fixedly connected to the outer side of the rotating rod 1002. Two extension frames 1007 are provided, with one end of each extension frame 1007 fixedly connected to the outer side of the rotating rod 1002. The gear plate 1003 is located between the two extension frames 1007.

[0023] In this invention, the lateral airflow assembly 10 further includes: Mounting rod 1008, the outer side of mounting rod 1008 is fixedly connected to the inner side of the end of extension frame 1007 away from rotating rod 1002, and a connecting plate 1009 is fixedly connected to the outer side of mounting rod 1008, the connecting plate 1009 is located between two extension frames 1007; The fixing rod 1010 is fixedly connected to the inner side of the connecting plate 1009 on its outer side, and both ends of the fixing rod 1010 are fixedly connected to the opposite side of the air blowing pipe 1011.

[0024] Specifically, while the air cooler 15 and fan 11 are working, the two symmetrically arranged lateral airflow components 10 also start operating simultaneously. The drive motor 1006 of the lateral airflow component 10 starts working, driving the rotating gear 1004 at the output end to rotate. The rotating gear 1004 drives the gear plate 1003 to rotate synchronously through the tooth meshing relationship. The gear plate 1003 then drives the rotating rod 1002, which is fixedly connected to it, to swing back and forth in the U-shaped frame 1001. During the swinging process of the rotating rod 1002, the power is transmitted through the extension frame 1007 on both sides, driving the mounting rod 1008 and the connecting plate 1009 to move synchronously. The connecting plate 1009 then drives the blowing pipe 1011 to change the angle of the whole through the fixed rod 1010. At this time, the cold air delivered by the annular air cooler 12 is introduced into the blowing pipe 1011 through the connecting pipe 1012. As the blowing pipe 1011 swings back and forth, the low-temperature airflow will blow towards both sides of the food from different angles, forming a multi-angle lateral jet cooling effect. In specific application scenarios, the lateral airflow component 10 swings and sprays air from both sides at multiple angles, and the cold air fully wraps the sides of the food. It works in conjunction with the top cold air to form a three-dimensional surrounding airflow, which avoids local underfreezing or overfreezing, and ensures that the temperature of all parts of the food is consistent, significantly improving the freezing uniformity. It should be noted that the oscillating side-blowing system actively breaks the static air insulation layer on the food surface, allowing high-speed cold air to directly impact the sides, significantly improving heat exchange efficiency. Combined with the top-mounted cold air and fan 11 circulation, freezing time is significantly shortened, production capacity is increased, and unit energy consumption is reduced, making it suitable for large-scale continuous production.

[0025] Reference Figure 2 , Figure 4 , Figure 5 and Figure 6 In a preferred embodiment, the airflow regulating assembly 16 further includes: Servo motor 1601, the top of servo motor 1601 is fixedly connected to the inside of the top of lifting device 2, and the power output shaft of servo motor 1601 is connected to rotary seat 1602 through a coupling. Multiple connecting rods 1603 are fixedly connected to the outside of the rotating seat 1602 on opposite sides, and rotating gears 1604 are movably connected to the bottom end of each connecting rod 1603. The extension frame 1606 is fixedly connected to the inside of the top of the lifting device 2, and the rotating gears 1604 are all located inside the extension frame 1606.

[0026] In this invention, the airflow regulating component 16 further includes: Gear ring 1605, the outer side of gear ring 1605 is fixedly connected to the inner side of the bottom end of extension frame 1606, and gear ring 1605 and rotating gear 1604 are meshed through tooth grooves; Multiple lower ring components 1607, the top ends of which are fixedly connected to the bottom end of the rotating gear 1604, and the inner side of the bottom end of each lower ring component 1607 is fixedly connected to the outer side of the connecting slide bar 1608. Multiple connecting ropes 1609 are provided, and the top ends of the multiple connecting ropes 1609 are fixedly connected to the bottom end of the connecting slide bar 1608.

[0027] In this invention, the airflow regulating component 16 further includes: Multiple pulleys 1610 are provided on the outside of the connecting slide bar 1608, and each pulley 1610 is fixedly connected to a connector 1611 on its outside. Multiple support plates 1612 are provided, with their top ends fixedly connected to the bottom end of the connecting rope 1609. The outer sides of the support plates 1612 are fixedly connected to the end of the connector 1611 away from the pulley 1610. The bottom ends of the support plates 1612 are fixedly connected to the top end of the blower belt 1613.

[0028] Specifically, the airflow regulating component 16 inside the lifting device 2 also starts operating synchronously. The servo motor 1601 of the airflow regulating component 16 starts working, driving the rotating seat 1602 at the top to rotate. The rotating seat 1602 drives multiple rotating gears 1604 to mesh along the inner side of the gear ring 1605 through the connecting rod 1603. The rotating gears 1604 will also rotate on their own axis while revolving around the center. The rotation of the rotating gears 1604 causes the lower ring 1607 at the bottom and the connecting slide rod 1608 to shift in position. Under the flexible traction of the connecting rope 1609, The pulley 1610 will slide and shift along the outer side of the connecting slide bar 1608, thereby driving the connector 1611 and the support plate 1612 to work together, ultimately causing the air blowing belt 1613 at the bottom of the support plate 1612 to swing back and forth. The swing of the air blowing belt 1613 will cause a large-scale disturbance and diffusion effect on the cold air flow in the quick-freezing area. The directional cold air originally sprayed from the cold air head 15 and the air blowing pipe 1011 will form a more uniform and wider-coverage convective airflow under the drive of the air blowing belt 1613, effectively eliminating the dead air flow in the quick-freezing area. In specific application scenarios, the 1613 air blower can oscillate back and forth to disturb the cold air in the room over a large area, disperse the local concentrated airflow, and allow the cold air to be evenly distributed to the entire quick-freezing area, making up for the problem of insufficient coverage of fixed-point air outlets, completely avoiding airflow blind spots such as corners and gaps, and ensuring that each piece of food receives consistent airflow and cooling conditions. It should be noted that the moving air blower 1613 actively agitates the air, accelerates the circulation and exchange of cold air, breaks up the static air layer on the surface of the food, improves the efficiency of heat exchange, effectively shortens the quick-freezing time, and increases the operating capacity of the entire production line.

[0029] Reference Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 In a preferred embodiment, the control cabinet 3 is fixedly connected to the outside of the quick-freezing table 1; Test box 4 is fixedly connected to the outside of the quick-freezing table 1; Two symmetrical fixed seats 5 are fixedly connected to the outside of the quick-freezing table 1 on opposite sides. Each fixed seat 5 has a round hole, and a lifting hydraulic rod 6 is installed inside the round hole. The bottom end of the lifting hydraulic rod 6 is in contact with the ground. Two symmetrical external frames 7 are fixedly connected to the outside of the lifting device 2 on opposite sides, and the inner sides of the external frames 7 are set on the outside of the lifting hydraulic rod 6. Two rotating rollers 8 are located on the inner sides of both ends of the quick-freezing table 1; Multiple sliding wheels 9 are fixedly connected to the outer side of the rotating roller 8 on their inner sides, and the inner sides of both ends of the conveyor belt 13 are set on the outer side of the sliding wheels 9. Fan 11, the top of fan 11 is fixedly connected to the bottom of lifting device 2, and fan 11 is located between two airflow regulating components 16; Multiple horizontal pipes 14 are fixedly connected at both ends to the inside of the annular air conditioning pipe 12, and multiple air conditioning heads 15 are fixedly connected at the bottom of the multiple horizontal pipes 14.

[0030] Working principle: During use, in the process of food quick-freezing, the food to be processed is placed steadily on the conveyor belt 13. The conveyor belt 13 rotates at a constant speed driven by the rotating rollers 8 at both ends of the quick-freezing table 1, continuously transporting the food to the quick-freezing area inside the lifting device 2. As the food enters the quick-freezing area, the equipment's refrigeration system starts simultaneously. The annular cold air pipe 12 begins to continuously transport low-temperature cold air. After the cold air is diverted through the transverse pipe 14, it is evenly sprayed out from each cold air head 15, directly cooling the upper surface of the food on the conveyor belt 13 in the vertical direction. At the same time, the fan 11 installed at the bottom of the lifting device 2 between the two sets of airflow regulating components 16 also starts to operate, actively disturbing the air in the quick-freezing area to promote the formation of circulating convection of cold air inside the device. While the air cooler 15 and fan 11 are working, the two symmetrically arranged lateral airflow components 10 also start running simultaneously. The drive motor 1006 of the lateral airflow component 10 starts working, driving the rotating gear 1004 at the output end to rotate. The rotating gear 1004 drives the gear plate 1003 to rotate synchronously through the tooth meshing relationship. The gear plate 1003 then drives the rotating rod 1002, which is fixedly connected to it, to swing back and forth in the U-shaped frame 1001. During the swinging process of the rotating rod 1002, the power is transmitted through the extension frame 1007 on both sides, driving the mounting rod 1008 and the connecting plate 1009 to move synchronously. The connecting plate 1009 then drives the blowing pipe 1011 to change the angle of the whole through the fixed rod 1010. At this time, the cold air delivered by the annular air cooler 12 is introduced into the blowing pipe 1011 through the connecting pipe 1012. As the blowing pipe 1011 swings back and forth, the low-temperature airflow will blow towards both sides of the food from different angles, forming a multi-angle lateral jet cooling effect. Simultaneously, the airflow regulating component 16 inside the ascending device 2 also starts operating. The servo motor 1601 of the airflow regulating component 16 starts working, driving the rotating seat 1602 at the top to rotate. The rotating seat 1602 drives multiple rotating gears 1604 to mesh along the inner side of the gear ring 1605 through the connecting rod 1603. The rotating gears 1604 will also rotate on their own axis while revolving around the central axis. The rotation of the rotating gears 1604 causes the lower ring 1607 at the bottom and the connecting slide rod 1608 to shift in position. Under the flexible traction of the connecting rope 1609, The pulley 1610 will slide and shift along the outer side of the connecting slide bar 1608, thereby driving the connector 1611 and the support plate 1612 to work together, ultimately causing the air blowing belt 1613 at the bottom of the support plate 1612 to swing back and forth. The swing of the air blowing belt 1613 will cause a large-scale disturbance and diffusion effect on the cold air flow in the quick-freezing area. The directional cold air originally sprayed from the cold air head 15 and the air blowing pipe 1011 will form a more uniform and wider-coverage convective airflow under the drive of the air blowing belt 1613, effectively eliminating the dead air flow in the quick-freezing area. As the conveyor belt 13 continues to operate, the food is able to be uniformly quick-frozen in a short time after being cooled vertically by the cold air head 15, blown from multiple angles by the lateral airflow assembly 10, and homogenized and expanded by the airflow regulating assembly 16. Then, it is smoothly conveyed out of the quick-freezing area by the conveyor belt 13.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency, high-convection tunnel-type food quick-freezing device, characterized in that, include: A quick-freezing table (1) is provided above the quick-freezing table (1) with a lifting device (2). Conveyor belt (13) is installed inside the quick-freezing table (1); Multiple annular cooling pipes (12) are installed inside the rising device (2); Multiple air cooling heads (15) are located above the conveyor belt (13); Multiple symmetrical lateral airflow components (10) are arranged inside the lifting device (2). Each lateral airflow component (10) includes two blowing pipes (1011). The blowing pipes (1011) are located between the annular cold air pipe (12) and the conveyor belt (13). The top end of each blowing pipe (1011) is fixedly connected to a connecting pipe (1012). The top end of each connecting pipe (1012) is fixedly connected to the bottom end of the annular cold air pipe (12). Two airflow regulating components (16) are provided inside the lifting device (2). The airflow regulating components (16) include multiple air blowing belts (1613), and a connecting slide bar (1608) is provided above each of the multiple air blowing belts (1613).

2. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 1, characterized in that, The lateral airflow assembly (10) further includes: The U-shaped frame (1001) is fixedly connected to the inside of the lifting device (2) on one side; The motor frame (1005) is fixedly connected to the inside of the U-shaped frame (1001) on one side. The drive motor (1006) is fixedly connected to the inner side of the motor frame (1005) on the outside. The power output shaft of the drive motor (1006) is connected to a rotating gear (1004) through a coupling.

3. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 2, characterized in that, The lateral airflow assembly (10) further includes: Gear plate (1003) is disposed on the upper side of the rotating gear (1004), and the gear plate (1003) and the rotating gear (1004) mesh with each other through tooth grooves; The rotating rod (1002) has two ends that are movably connected to the inside sides of the U-shaped frame (1001), and the inner side of the gear plate (1003) is fixedly connected to the outer side of the rotating rod (1002). Two extension frames (1007) are fixedly connected to the outer side of the rotating rod (1002) at one end of each extension frame (1007), and the gear plate (1003) is located between the two extension frames (1007).

4. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 3, characterized in that, The lateral airflow assembly (10) further includes: Mounting rod (1008), the outer side of which is fixedly connected to the inner side of the end of the extension frame (1007) away from the rotating rod (1002), and a connecting plate (1009) is fixedly connected to the outer side of the mounting rod (1008), the connecting plate (1009) being located between the two extension frames (1007); The outer side of the fixing rod (1010) is fixedly connected to the inner side of the connecting plate (1009), and both ends of the fixing rod (1010) are fixedly connected to the opposite side of the air blowing pipe (1011).

5. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 1, characterized in that, The airflow regulating assembly (16) further includes: The top of the servo motor (1601) is fixedly connected to the inside of the top of the lifting device (2), and the power output shaft of the servo motor (1601) is connected to the rotating seat (1602) through a coupling. Multiple connecting rods (1603) are fixedly connected to the outside of the rotating seat (1602) on opposite sides, and the bottom end of each connecting rod (1603) is movably connected to a rotating gear (1604). The extension frame (1606) is fixedly connected to the inside of the top of the lifting device (2), and the rotating gears (1604) are all located inside the extension frame (1606).

6. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 5, characterized in that, The airflow regulating assembly (16) further includes: The outer side of the gear ring (1605) is fixedly connected to the inner side of the bottom end of the extension frame (1606). The gear ring (1605) and the rotating gear (1604) are meshed through tooth grooves. Multiple lower ring components (1607) are provided, with the top ends of the multiple lower ring components (1607) fixedly connected to the bottom end of the rotating gear (1604), and the inner side of the bottom end of the lower ring components (1607) is fixedly connected to the outer side of the connecting slide bar (1608). Multiple connecting ropes (1609) are fixedly connected at the top end to the bottom end of the connecting slide bar (1608).

7. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 6, characterized in that, The airflow regulating assembly (16) further includes: Multiple pulleys (1610) are provided on the outside of the connecting slide bar (1608), and each pulley (1610) is fixedly connected to a connector (1611). Multiple support plates (1612) are provided, with the top of each support plate (1612) fixedly connected to the bottom of the connecting rope (1609). The outer sides of each support plate (1612) are fixedly connected to the end of the connector (1611) away from the pulley (1610). The bottom of each support plate (1612) is fixedly connected to the top of the blower belt (1613).

8. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 1, characterized in that, Also includes: Control cabinet (3) is fixedly connected to the outside of the quick-freezing table (1); The test box (4) is fixedly connected to the outside of the quick-freezing table (1); Two symmetrical fixed seats (5) are fixedly connected to the outside of the quick-freezing table (1) on opposite sides. Each fixed seat (5) has a round hole, and a lifting hydraulic rod (6) is installed inside the round hole. The bottom end of the lifting hydraulic rod (6) is in contact with the ground.

9. The high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 8, characterized in that, Also includes: Two symmetrical external frames (7) are fixedly connected to the outside of the lifting device (2) on opposite sides, and the inner side of the external frames (7) is set on the outside of the lifting hydraulic rod (6). Two rotating rollers (8) are located on the inner sides of both ends of the quick-freezing table (1); Multiple sliding wheels (9) are fixedly connected to the outer side of the rotating roller (8) on the inner side of the multiple sliding wheels (9), and the inner sides of both ends of the conveyor belt (13) are set on the outer side of the sliding wheels (9).

10. A high-efficiency, high-convection tunnel-type food quick-freezing device according to claim 9, characterized in that, Also includes: The top of the fan (11) is fixedly connected to the bottom of the lifting device (2), and the fan (11) is located between the two airflow regulating components (16). Multiple horizontal pipes (14) are fixedly connected at both ends to the inner side of the annular air conditioning pipe (12), and multiple air conditioning heads (15) are fixedly connected at the bottom of the multiple horizontal pipes (14).

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