Ultra-low temperature freezing device and method of use

Abstract

The present invention relates to the technical field of freezing equipment, and in particular to an ultra-low temperature freezing equipment and a method of using the equipment, including a cold storage, a storage box, a screw, a guide rod, a slide seat and a top cover; a driving component drives the screw to rotate through a connection transmission of a connecting component, so that the slide seat slides along the guide rod, and drives the top cover to move to align with the top surface of the storage box, and a lifting component lowers the top cover so that the top cover covers the top of the storage box, and an externally arranged low-temperature refrigerator slowly delivers cold air to the inside of the storage box through a ventilation component, so that the fish inside the storage box is cooled and frozen smoothly, until the fish inside the storage box is completely frozen, and then the independent cooling unit is reset; thereby, the problem of excessive temperature difference between the core and the surface of the fish due to rapid cooling and freezing is avoided, and the problem of cracking of the fish surface and serious damage to the fish body is avoided, thereby ensuring the quality and taste of the frozen fish.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to ultra-low temperature refrigeration equipment and a use method thereof. Background Art

[0002] Ultra-low temperature freezing equipment is a kind of equipment that changes the pressure of refrigerant gas through a compressor to achieve refrigeration; ultra-low temperature freezing equipment is widely used in various fields for constant temperature freezing, especially for low-temperature storage of fish. After the fish is caught, if the preservation measures are not taken in time, it is easy to spoil;

[0003] After the fish are caught, they are stored at low temperatures in time. They are usually classified and stored in cold storage. The ultra-low temperature freezing equipment keeps the temperature in the cold storage at a constant low temperature, so that the stored fish are quickly cooled and frozen, inhibiting the activity of microorganisms in the fish, so as to achieve the purpose of long-term preservation and storage of fish;

[0004] However, the rapid cooling and freezing of fish in a cold storage will cause the temperature difference between the core and the surface of the fish to increase rapidly, which can easily cause cracks on the surface of the fish and serious damage to the body of the fish, reducing the quality and taste of the fish. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the temperature difference between the core and the surface of the fish rapidly increases due to the rapid cooling and freezing of the fish in the cold storage.

[0006] To solve the above technical problems, the present invention provides an ultra-low temperature freezing equipment, comprising: a cold storage, wherein both sides of the top of the cold storage are provided with independent cooling units; a low-temperature refrigerator is provided on the outside of the cold storage, and the low-temperature refrigerator provides cold air for the cold storage; a storage box, wherein a plurality of storage boxes are evenly placed on both sides of the interior of the cold storage; the independent cooling unit comprises a screw and a guide rod; the screw and the guide rod are both at the top of the cold storage, and the guide rod is located at the bottom of the screw; the cross-section of the guide rod is a regular polygon; a slide seat, wherein the slide seat is arranged on the outer ring of the screw, and the slide seat is threadedly matched with the screw; the guide rod slides through the slide seat; a lifting assembly, wherein the lifting assembly is arranged at the bottom end of the slide seat; a top cover, wherein the top cover is arranged at the bottom end of the lifting assembly; the top cover matches the top opening of the storage box; a connecting assembly, wherein the connecting assembly is arranged at the top of one end of the cold storage near the entrance; a driving assembly, wherein the driving assembly is arranged at one end of the outer wall of the cold storage near the entrance; a ventilation assembly, wherein the ventilation assembly is arranged between the lifting assembly and the inner wall of the cold storage near the entrance.

[0007] In one embodiment of the present invention, the lifting assembly includes: a shell, which is fixed to the bottom end of the slide; a transmission assembly is provided on one side of the shell; a wire drum, which is rotatably installed inside the shell; a sling, which is wound around the middle outer ring of the wire drum; the bottom end of the sling slides through the bottom of the shell; a cross fixing frame, which is fixed to the bottom end of the sling; and the bottom surface of the cross fixing frame is fixed to the top surface of the top cover.

[0008] In one embodiment of the present invention, the transmission assembly includes: a rotating cylinder, which is rotatably mounted on the bottom of the slide seat and is slidably sleeved on the outer ring of the guide rod; a sprocket, wherein the two sprockets are respectively fixedly connected to one end of the rotating cylinder and one end of the rotating shaft of the wire drum; and a chain, wherein the chain is sleeved on the outer rings of the two sprockets.

[0009] In one embodiment of the present invention, the connecting assembly includes: a fixing seat, two of the fixing seats are fixedly connected to the top ends of the cold storage; a rotating column, two of the rotating columns are rotatably installed inside the fixing seat; the two rotating columns at the top of both sides are fixedly connected to the two ends of the screw; the two rotating columns at the bottom of both sides are fixedly connected to the two ends of the guide rod; a No. 1 connecting hole is provided at the end of the rotating column near the entrance of the cold storage; the No. 1 connecting hole is composed of a circular hole and a regular polygonal hole; a connecting seat, the connecting seat is fixedly connected to the top of one end of the cold storage near the entrance, and the connecting seat passes through the outer wall of the cold storage; a pair of No. 1 mounting grooves are provided inside the connecting seat; the two No. 1 mounting grooves correspond to two No. 1 connecting holes respectively; a fixing cylinder, the fixing cylinder is fixed inside the No. 1 mounting groove; a connecting column, the connecting column is arranged inside the fixing cylinder; the two ends of the connecting column respectively pass through the two ends of the fixing cylinder; the connecting column can slide and rotate inside the fixing cylinder; a No. 1 connecting block, the No. 1 connecting block is fixedly connected to one end of the connecting column near the rotating column; the No. 1 connecting block matches the No. 1 connecting hole.

[0010] In one embodiment of the present invention, a pair of convex rings are fixedly connected to the middle outer ring of the connecting column; a spiral ring piece is fixedly connected between the two convex rings; the spiral ring piece is elastic; and antifreeze lubricating oil is provided inside the fixing cylinder.

[0011] In one embodiment of the present invention, a No. 2 mounting groove is provided between the two No. 1 mounting grooves; the No. 1 mounting groove is connected to one end of the No. 2 mounting groove away from the interior of the cold storage; an oil replenishing tank is fixedly connected to the interior of the No. 2 mounting groove; a push plate is slidably installed inside the oil replenishing tank; a plurality of boosting springs are fixedly connected between a side of the push plate close to the interior of the cold storage and the inner wall of the oil replenishing tank; a No. 1 protrusion is fixedly connected to the top and bottom surfaces of the oil replenishing tank; a No. 1 through hole is provided inside the No. 1 protrusion, and the No. 1 through hole is connected to the interior of the oil replenishing tank; a No. 2 protrusion is fixedly connected to a side of the fixed cylinder close to the No. 2 mounting groove; a No. 2 through hole is provided inside the No. 2 protrusion, and the No. 2 through hole is connected to the interior of the fixed cylinder; the No. 2 protrusion can contact the No. 1 protrusion, and the No. 2 through hole inside the No. 2 protrusion can be connected to the No. 1 through hole inside the No. 1 protrusion.

[0012] In one embodiment of the present invention, the driving assembly includes: a translation assembly, which is fixedly connected to one end of the outer wall of the cold storage near the entrance, and the translation assembly is located at the bottom of the connecting assembly; a mounting frame, which is arranged on the top of the translation assembly; a movable plate, which is slidably mounted on the top inner ring of the mounting frame; a hydraulic cylinder, which is fixedly connected to the middle of the side of the mounting frame away from the cold storage; the piston rod of the hydraulic cylinder is fixedly connected to the movable plate; a No. 1 motor, two of the No. 1 motors are respectively fixedly connected to the top and bottom surfaces of the movable plate; a No. 2 connecting block, a No. 2 connecting block is fixedly connected to the outer ring of the rotating shaft of the No. 1 motor; a No. 2 connecting hole, which is opened at one end of the connecting column away from the cold storage; the No. 2 connecting block matches the No. 2 connecting hole; a magnet, which is fixedly connected to the inside of the No. 2 connecting hole; the magnet can be attracted to the No. 2 connecting block.

[0013] In one embodiment of the present invention, the translation assembly includes: a slide rail, which is fixedly connected to one end of the outer wall of the cold storage near the entrance, and the translation assembly is located at the bottom of the connecting assembly; a screw rod, which is rotatably installed inside the slide rail; a slider, which is slidably installed inside the slide rail; the screw rod passes through the slider, and the screw rod and the slider are threadedly matched; the top surface of the slider is fixedly connected to the bottom surface of the mounting frame; a No. 2 motor, which is fixedly connected to one end of the slide rail; and the rotating shaft of the No. 2 motor is fixedly connected to the end of the screw rod.

[0014] In one embodiment of the present invention, the ventilation assembly includes: a cold air pipe, one end of which is connected to a low-temperature refrigerator outside the cold storage; the other end of the cold air pipe is connected to a top cover; one end of the cold air pipe close to the top cover is fixedly connected to the shell, and the length of the cold air pipe located between the shell and the top cover is greater than the distance the top cover descends; a sliding hanger, a plurality of the sliding hangers are slidably mounted on the outer ring of a guide rod, and the guide rod can rotate inside the sliding hanger; a pair of cross bars are fixedly connected to the bottom of the sliding hanger; the cold air pipe is located between two of the cross bars.

[0015] A method for using an ultra-low temperature freezing device, the method using the ultra-low temperature freezing device described above, and the method using comprises the following steps:

[0016] S1: The caught fish are placed inside a storage box, and the storage box is placed inside one side of the cold storage;

[0017] S2: Control the translation assembly to move to the independent cooling unit on one side of the corresponding storage box, and the hydraulic cylinder pushes the movable plate to slide, pushes the No. 2 connecting block to insert into the No. 2 connecting hole, and pushes the connecting column to connect and fix with the rotating column;

[0018] S3: The driving assembly drives a connecting column at the top to rotate, driving the screw rod to rotate, so that the slide seat slides along the guide rod, driving the top cover to move to align with the top surface of the storage box;

[0019] S4: The driving assembly in turn drives the guide rod to rotate, driving the rotating drum to rotate, and through the sprocket and chain transmission, driving the wire drum to rotate, releasing the sling downward, so that the top cover covers the top of the storage box, and the storage box is sealed and covered;

[0020] S5: The cold air generated by the low-temperature refrigerator is passed into the storage box through the cold air pipe, so that the fish in the storage box are cooled and frozen smoothly;

[0021] S6: After the fish inside the storage box is completely frozen, the independent cooling unit is reset so that the top cover is separated from the storage box.

[0022] The above technical solution of the present invention has the following advantages compared with the prior art:

[0023] 1. In the present invention, the driving component drives the screw to rotate through the connection transmission of the connecting component, so that the slide slides along the guide rod, and drives the top cover to move to align with the top surface of the storage box. At this time, the driving component stops driving the screw to rotate, and the lifting component lowers the top cover so that the top cover covers the top of the storage box to seal the storage box. The low-temperature refrigerator arranged outside slowly delivers cold air to the inside of the storage box through the ventilation component, so that the fish inside the storage box is cooled and frozen smoothly until the fish inside the storage box is completely frozen, and then the independent cooling unit is reset to separate the top cover from the storage box, so that the temperature inside the storage box is consistent with the temperature inside the cold storage; thereby avoiding the problem of excessive temperature difference between the core and the surface of the fish due to rapid cooling and freezing, thereby avoiding the problem of cracking of the fish surface and serious damage to the fish body, and then ensuring the quality and taste of the frozen fish.

[0024] 2. In the present invention, the driving assembly is connected to the connecting assembly, pushing the two connecting columns to move inside the fixed cylinder toward the inside of the cold storage, driving the No. 1 connecting block to be inserted into the No. 1 connecting hole at the end of the rotating column, so that the No. 1 connecting block is matched and fixed with the No. 1 connecting hole, so that the connecting column and the rotating column are connected and fixed; the driving assembly drives the two connecting columns to rotate respectively, and controls the rotation of the screw and the guide rod respectively, thereby realizing the horizontal movement of the top cover and the lifting and lowering of the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0026] Figure 1 is a stereogram of the present invention;

[0027] Figure 2 is an exploded view of the present invention;

[0028] Figure 3 It is a three-dimensional diagram of the independent cooling unit in the present invention;

[0029] Figure 4 is an exploded view of the lifting assembly of the present invention;

[0030] Figure 5 is a three-dimensional diagram of the transfer column of the present invention;

[0031] Figure 6 is a stereogram of a connection assembly in the present invention;

[0032] Figure 7 is an exploded view of the connection assembly in the present invention;

[0033] Figure 8 It is a three-dimensional diagram of the fixing cylinder and the connecting column in the present invention;

[0034] Fig. 9 is a cross-sectional view of a connection assembly in the present invention;

[0035] Fig.10 yes Fig. 9 A partial enlarged view of the middle A;

[0036] Fig.11 is a three-dimensional diagram of the drive assembly of the present invention;

[0037] Fig.12 is an exploded view of the mounting frame of the present invention;

[0038] Fig.13 is a three-dimensional diagram of the ventilation assembly of the present invention;

[0039] Fig.14 is a flow chart of the method used in the present invention;

[0040] Description of the reference numerals in the specification: 1. cold storage; 2. storage box; 3. screw rod; 4. guide rod; 5. slide seat; 6. top cover; 7. housing; 8. wire drum; 9. sling; 10. cross fixing frame; 11. rotating cylinder; 12. sprocket; 13. chain; 14. fixing seat; 15. rotating column; 16. No. 1 connecting hole; 17. connecting seat; 18. No. 1 mounting groove; 19. fixing cylinder; 20. connecting column; 21. No. 1 connecting block; 22. convex ring; 23. spiral ring piece; 2 4. Mounting slot No. 2; 25. Oil filling tank; 26. Push plate; 27. Booster spring; 28. Bump No. 1; 29. ​​Bump No. 2; 30. Mounting frame; 31. Movable plate; 32. Hydraulic cylinder; 33. Motor No. 1; 34. Connecting block No. 2; 35. Connecting hole No. 2; 36. Magnet; 37. Slide rail; 38. Screw rod; 39. Sliding block; 40. Motor No. 2; 41. Air conditioning pipe; 42. Sliding hanger; 43. Cross bar; 44. Through hole No. 1; 45. Through hole No. 2. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0042] Reference Figures 1 to 3 As shown, an ultra-low temperature freezing device of the present invention comprises: a cold storage 1, wherein both sides of the top of the cold storage 1 are provided with independent cooling units; a low-temperature refrigerator is provided on the outside of the cold storage 1, and the low-temperature refrigerator provides cold air for the cold storage 1; a storage box 2, wherein a plurality of storage boxes 2 are evenly placed on both sides of the interior of the cold storage 1; the independent cooling unit comprises a screw rod 3 and a guide rod 4; the screw rod 3 and the guide rod 4 are both at the top of the cold storage 1, and the guide rod 4 is located at the bottom of the screw rod 3; the cross section of the guide rod 4 is a regular polygon; a slide seat 5, wherein the slide seat 5 is arranged on the screw rod 3; The outer ring of the rod 3, and the slide 5 is threadedly matched with the screw 3; the guide rod 4 slides through the slide 5; the lifting component, the lifting component is arranged at the bottom end of the slide 5; the top cover 6, the top cover 6 is arranged at the bottom end of the lifting component; the top cover 6 matches the top opening of the storage box 2; the connecting component, the connecting component is arranged at the top of one end of the cold storage 1 near the entrance; the driving component, the driving component is arranged at one end of the outer wall of the cold storage 1 near the entrance; the ventilation component, the ventilation component is arranged between the lifting component and the inner wall of the cold storage 1 near the entrance;

[0043] During operation, the low-temperature refrigerator arranged outside the cold storage 1 keeps the inside of the cold storage 1 in an ultra-low temperature state at all times; after the fish are caught, they are placed inside the storage box 2, and the storage box 2 is placed on one side of the inside of the cold storage 1, and the driving component drives the screw 3 to rotate through the connection transmission of the connecting component, so that the slide 5 slides along the guide rod 4, driving the top cover 6 to move to align with the top surface of the storage box 2. At this time, the driving component stops driving the screw 3 to rotate, and instead, the driving component drives the guide rod 4 to rotate, driving the lifting component to lower the top cover 6, so that the top cover 6 covers the top of the storage box 2, and the storage box 2 is sealed. The low-temperature refrigerator arranged outside slowly delivers cold air to the interior of the storage box 2 through the ventilation assembly, so that the fish in the storage box 2 are cooled and frozen smoothly. After the fish in the storage box 2 is completely frozen, the independent cooling unit is reset to separate the top cover 6 from the storage box 2, so that the internal temperature of the storage box 2 is consistent with the temperature inside the cold storage 1; thereby avoiding the problem of excessive temperature difference between the core and the surface of the fish due to rapid cooling and freezing, thereby avoiding the problem of cracking of the fish surface and serious damage to the fish body, and then ensuring the quality and taste of the frozen fish.

[0044] Reference Figure 3 to Figure 4 As shown, the lifting assembly includes: a shell 7, which is fixed to the bottom end of the slide 5; a transmission assembly is arranged on one side of the shell 7; a wire drum 8, which is rotatably mounted inside the shell 7; a sling 9, which is wound around the middle outer ring of the wire drum 8; the bottom end of the sling 9 slides through the bottom of the shell 7; a cross fixing frame 10, which is fixed to the bottom end of the sling 9; the bottom surface of the cross fixing frame 10 is fixed to the top surface of the top cover 6;

[0045] The transmission assembly includes: a rotating drum 11, which is rotatably mounted on the bottom of the slide 5 and is slidably sleeved on the outer ring of the guide rod 4; a sprocket 12, two of which are respectively fixed to one end of the rotating drum 11 and one end of the rotating shaft of the wire drum 8; a chain 13, which is sleeved on the outer rings of the two sprockets 12;

[0046] When working, the screw rod 3 rotates, driving the slide 5 to move, driving the rotating cylinder 11 to slide along the guide rod 4, so that the transmission component does not work, so that the lifting component only moves horizontally with the slide 5;

[0047] When the top cover 6 moves to align with the top surface of the storage box 2, the driving assembly drives the guide rod 4 to rotate through the connection transmission of the connecting assembly, drives the rotating cylinder 11 to rotate, drives the sprocket 12 to rotate, and drives the wire drum 8 to rotate through the chain 13, so that the sling 9 is released downward, so that the cross fixing frame 10 and the top cover 6 are lowered, so that the top cover 6 covers the top of the storage box 2, and the storage box 2 is sealed and shielded;

[0048] When the fish inside the storage box 2 is completely frozen, the driving assembly drives the guide rod 4 to rotate in the opposite direction through the connection transmission of the connecting assembly, drives the rotating cylinder 11 to reverse, drives the sprocket 12 and the chain 13 to drive the wire drum 8 to rotate in the opposite direction, retracts the sling 9 into the interior of the shell 7, and lifts the cross fixing frame 10 and the top cover 6, so that the temperature inside the storage box 2 is consistent with the temperature inside the cold storage 1;

[0049] Thus, the sealing and opening of the storage box 2 is achieved, making it convenient for the staff to perform control operations outside the cold storage 1.

[0050] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the connecting assembly includes: a fixing seat 14, two of the fixing seats 14 are fixedly connected to the two ends of the top of the cold storage 1; a rotating column 15, two of the rotating columns 15 are rotatably installed inside the fixing seat 14; the two rotating columns 15 at the top of both sides are fixedly connected to the two ends of the screw 3; the two rotating columns 15 at the bottom of both sides are fixedly connected to the two ends of the guide rod 4; a No. 1 connecting hole 16 is opened at the end of the rotating column 15 near the entrance of the cold storage 1; the No. 1 connecting hole 16 is composed of a circular hole and a regular polygonal hole; a connecting seat 17, the connecting seat 17 is fixedly connected to the top of one end of the cold storage 1 near the entrance, and the connecting seat 17 passes through the cold storage 1. Outer wall; a pair of No. 1 mounting grooves 18 are provided inside the connecting seat 17; the two No. 1 mounting grooves 18 correspond to two No. 1 connecting holes 16 respectively; a fixing cylinder 19, the fixing cylinder 19 is fixedly connected to the inside of the No. 1 mounting groove 18; a connecting column 20, the connecting column 20 is arranged inside the fixing cylinder 19; the two ends of the connecting column 20 respectively penetrate the two ends of the fixing cylinder 19; the connecting column 20 can slide and rotate inside the fixing cylinder 19; a No. 1 connecting block 21, the No. 1 connecting block 21 is fixedly connected to one end of the connecting column 20 close to the rotating column 15; the No. 1 connecting block 21 matches the No. 1 connecting hole 16;

[0051] During operation, when the fish placed in the storage box 2 needs to be cooled and frozen, the driving assembly is connected to the connecting assembly, pushing the two connecting columns 20 to move inside the fixing cylinder 19 toward the inside of the cold storage 1, driving the No. 1 connecting block 21 to be inserted into the No. 1 connecting hole 16 at the end of the rotating column 15, so that the No. 1 connecting block 21 is matched and fixed with the No. 1 connecting hole 16, so that the connecting column 20 is connected and fixed with the rotating column 15;

[0052] The driving assembly drives a connecting column 20 at the top to rotate, driving the rotating column 15 at the top to rotate, driving the screw rod 3 to rotate, so that the slide seat 5 slides along the guide rod 4, driving the top cover 6 to move to align with the top surface of the storage box 2; thereby realizing the horizontal movement of the top cover 6;

[0053] When the top cover 6 moves to align with the top surface of the storage box 2, the driving assembly stops driving a top connecting column 20 to rotate, and instead drives a bottom connecting column 20 to rotate, thereby driving the bottom rotating column 15 to rotate, and driving the guide rod 4 to rotate, thereby providing power for the lifting assembly, and then realizing the lifting and lowering of the top cover 6.

[0054] Reference Figures 6 to 10 As shown, a pair of convex rings 22 are fixedly connected to the middle outer ring of the connecting column 20; a spiral ring piece 23 is fixedly connected between the two convex rings 22; the spiral ring piece 23 is elastic; the interior of the fixing cylinder 19 is provided with antifreeze lubricating oil;

[0055] A second installation groove 24 is provided between the two first installation grooves 18; The No. 1 mounting groove 18 is connected with one end of the No. 2 mounting groove 24 away from the interior of the cold storage 1; an oil replenishing tank 25 is fixedly connected to the interior of the No. 2 mounting groove 24; a push plate 26 is slidably installed inside the oil replenishing tank 25; a plurality of booster springs 27 are fixedly connected between the side of the push plate 26 close to the interior of the cold storage 1 and the inner wall of the oil replenishing tank 25; a No. 1 protrusion 28 is fixedly connected to the top and bottom surfaces of the oil replenishing tank 25; a No. 1 through hole 44 is provided inside the No. 1 protrusion 28, and the No. 1 through hole 44 is connected to the interior of the oil replenishing tank 25; a No. 2 protrusion 29 is fixedly connected to the side of the fixed cylinder 19 close to the No. 2 mounting groove 24; a No. 2 through hole 45 is provided inside the No. 2 protrusion 29, and the No. 2 through hole 45 is connected to the interior of the fixed cylinder 19; the No. 2 protrusion 29 can contact the No. 1 protrusion 28, and the No. 2 through hole 45 inside the No. 2 protrusion 29 can be connected to the No. 1 through hole 44 inside the No. 1 protrusion 28;

[0056] During operation, the antifreeze lubricating oil is injected into the inside of the oil replenishing tank 25, and the antifreeze lubricating oil pushes the push plate 26 to slide along the inner wall of the oil replenishing tank 25 toward the inside of the cold storage 1, so that the booster spring 27 is compressed. The elastic force generated by the compression of the booster spring 27 causes the push plate 26 to squeeze the antifreeze lubricating oil inside the oil replenishing tank 25, so that the antifreeze lubricating oil enters the inside of the fixed cylinder 19 through the No. 1 through hole 44 inside the No. 1 protrusion 28 and the No. 2 through hole 45 inside the No. 2 protrusion 29; the antifreeze lubricating oil entering the inside of the fixed cylinder 19 is blocked by the pair of protruding rings 22, so that the antifreeze lubricating oil gathers in the spiral ring piece 23;

[0057] When the driving assembly is connected to the connecting assembly, the two connecting columns 20 are pushed to move inside the fixed cylinder 19 toward the inside of the cold storage 1, so that a convex ring 22 away from the cold storage 1 blocks and seals the second through hole 45 inside the second convex block 29, thereby preventing the antifreeze lubricating oil from entering the inside of the fixed cylinder 19, thereby preventing the antifreeze lubricating oil from leaking from the end of the fixed cylinder 19 away from the cold storage 1;

[0058] When the driving assembly drives the connecting column 20 to rotate, the convex ring 22 and the spiral ring piece 23 are driven to rotate, and the antifreeze lubricating oil inside the fixed cylinder 19 is pushed toward one end of the cold storage 1 for pressurization. At the same time, the spiral ring piece 23 rotates, so that the antifreeze lubricating oil is pushed toward the inner wall of the fixed cylinder 19, so that the antifreeze lubricating oil fills the end of the fixed cylinder 19 close to the cold storage 1; thereby, freezing between the connecting column 20 and the fixed cylinder 19 is avoided, and at the same time, the smoothness of the rotation of the connecting column 20 is improved;

[0059] The driving component is separated outside the cold storage 1 by the connecting component, thereby preventing the driving component from being affected by the low temperature inside the cold storage 1 and increasing the service life of the driving component.

[0060] Reference Figure 1 , Figure 2 , Fig.11 and Fig.12 As shown, the driving assembly includes: a translation assembly, which is fixedly connected to one end of the outer wall of the cold storage 1 near the entrance, and the translation assembly is located at the bottom of the connecting assembly; a mounting frame 30, which is arranged on the top of the translation assembly; a movable plate 31, which is slidably mounted on the top inner ring of the mounting frame 30; a hydraulic cylinder 32, which is fixedly connected to the middle of the side of the mounting frame 30 away from the cold storage 1; the piston rod of the hydraulic cylinder 32 is fixedly connected to the movable plate 31; a No. 1 motor 33, the two No. 1 motors 33 are fixedly connected to the top and bottom surfaces of the movable plate 31 respectively; No. 2 connecting block 34, the outer ring of the rotating shaft of the No. 1 motor 33 is fixedly connected with the No. 2 connecting block 34; No. 2 connecting hole 35, the No. 2 connecting hole 35 is opened at the end of the connecting column 20 away from the cold storage 1; the No. 2 connecting block 34 matches the No. 2 connecting hole 35; the magnet 36, the magnet 36 is fixedly connected to the inside of the No. 2 connecting hole 35; the magnet 36 can attract the No. 2 connecting block 34;

[0061] Reference Figure 3 and Fig.13 As shown, the translation assembly includes: a slide rail 37, the slide rail 37 is fixedly connected to one end of the outer wall of the cold storage 1 near the entrance, and the translation assembly is located at the bottom of the connecting assembly; a screw rod 38, the screw rod 38 is rotatably installed inside the slide rail 37; a slider 39, the slider 39 is slidably installed inside the slide rail 37; the screw rod 38 passes through the slider 39, and the screw rod 38 and the slider 39 are threadedly matched; the top surface of the slider 39 is fixedly connected to the bottom surface of the mounting frame 30; a No. 2 motor 40, the No. 2 motor 40 is fixedly connected to one end of the slide rail 37; the rotating shaft of the No. 2 motor 40 is fixedly connected to the end of the screw rod 38;

[0062] During operation, after the storage box 2 is placed on one side of the interior of the cold storage 1, the No. 2 motor 40 drives the screw rod 38 to rotate, and drives the slider 39 to slide along the slide rail 37, so that the slider 39 moves to the independent cooling unit on the corresponding side of the storage box 2; at this time, the No. 2 connecting blocks 34 on the rotating shafts of the two No. 1 motors 33 are respectively aligned with the No. 2 connecting holes 35 on the two connecting columns 20; the hydraulic cylinder 32 pushes the movable plate 31 to slide toward the cold storage 1, drives the two No. 1 motors 33 to move toward the cold storage 1, drives the No. 2 connecting blocks 34 to insert into the No. 2 connecting holes 35, and pushes the connecting column 20 to slide toward the cold storage 1, thereby providing kinetic energy for the rotation and translation of the connecting column 20, and then provides kinetic energy for the horizontal movement and lifting of the top cover 6;

[0063] Through the attraction of the magnet 36 and the second connecting block 34, when the hydraulic cylinder 32 pulls the movable plate 31, the first motor 33 and the second connecting block 34 to reset, the magnetic force of the magnet 36 drives the connecting column 20 to reset inside the fixed cylinder 19, thereby realizing the separation and reset of the connecting column 20 and the rotating column 15.

[0064] The ventilation assembly includes: a cold air pipe 41, one end of which is connected to a low-temperature refrigerator outside the cold storage 1; the other end of the cold air pipe 41 is connected to the top cover 6; the end of the cold air pipe 41 close to the top cover 6 is fixedly connected to the shell 7, and the length of the cold air pipe 41 between the shell 7 and the top cover 6 is greater than the distance the top cover 6 descends; a sliding hanger 42, a plurality of the sliding hangers 42 are slidably mounted on the outer ring of the guide rod 4, and the guide rod 4 can rotate inside the sliding hanger 42; a pair of cross bars 43 are fixedly connected to the bottom of the sliding hanger 42; the cold air pipe 41 is located between two of the cross bars 43;

[0065] During operation, the cold air pipe 41 is hoisted at the bottom of the guide rod 4 by sliding the hanger 42 and the cross bar 43, so that the cold air pipe 41 is corrugated; when the slide seat 5 moves horizontally, the corrugated cold air pipe 41 is driven to straighten; the cold air generated by the low-temperature refrigerator is passed into the interior of the storage box 2 through the cold air pipe 41, so that the fish in the storage box 2 are cooled and frozen smoothly, thereby avoiding the situation where the temperature difference between the core and the surface of the fish is too large due to rapid cooling and freezing of the fish.

[0066] Reference Fig.14 As shown, a method for using an ultra-low temperature freezing device, the method for using the ultra-low temperature freezing device described above, and the method for using the ultra-low temperature freezing device comprises the following steps:

[0067] S1: The caught fish are placed in the storage box 2, and the storage box 2 is placed on one side of the interior of the cold storage 1;

[0068] S2: Control the translation assembly to move to the independent cooling unit on one side of the corresponding storage box 2, the hydraulic cylinder 32 pushes the movable plate 31 to slide, pushes the second connecting block 34 to insert into the second connecting hole 35, and pushes the connecting column 20 to connect and fix with the rotating column 15;

[0069] S3: The driving assembly drives a connecting column 20 at the top to rotate, driving the screw rod 3 to rotate, so that the slide 5 slides along the guide rod 4, driving the top cover 6 to move to align with the top surface of the storage box 2;

[0070] S4: The driving assembly in turn drives the guide rod 4 to rotate, driving the rotating drum 11 to rotate, and through the transmission of the sprocket 12 and the chain 13, driving the wire drum 8 to rotate, releasing the sling 9 downward, so that the top cover 6 covers the top of the storage box 2, and the storage box 2 is sealed and shielded;

[0071] S5: The cold air generated by the low-temperature refrigerator is passed into the storage box 2 through the cold air pipe 41, so that the fish in the storage box 2 are cooled and frozen smoothly;

[0072] S6: After the fish inside the storage box 2 is completely frozen, the independent cooling unit is reset so that the top cover 6 is separated from the storage box 2.

[0073] Working principle: the antifreeze lubricating oil is injected into the oil replenishing tank 25, and the antifreeze lubricating oil pushes the push plate 26 to slide along the inner wall of the oil replenishing tank 25 toward the inside of the cold storage 1, so that the booster spring 27 is compressed. The elastic force generated by the compression of the booster spring 27 causes the push plate 26 to squeeze the antifreeze lubricating oil inside the oil replenishing tank 25, so that the antifreeze lubricating oil enters the interior of the fixed cylinder 19 through the No. 1 through hole 44 inside the No. 1 protrusion 28 and the No. 2 through hole 45 inside the No. 2 protrusion 29; the antifreeze lubricating oil entering the interior of the fixed cylinder 19 is blocked by a pair of protruding rings 22, so that the antifreeze lubricating oil gathers in the spiral ring piece 23;

[0074] The low-temperature refrigerator installed outside the cold storage 1 keeps the inside of the cold storage 1 at an ultra-low temperature all the time; after the fish are caught, they are placed inside the storage box 2, and the storage box 2 is placed on one side of the inside of the cold storage 1;

[0075] After the storage box 2 is placed on one side of the cold storage 1, the No. 2 motor 40 drives the screw rod 38 to rotate, drives the slider 39 to slide along the slide rail 37, so that the slider 39 moves to the independent cooling unit on the corresponding side of the storage box 2; at this time, the No. 2 connecting blocks 34 on the rotating shafts of the two No. 1 motors 33 are respectively aligned with the No. 2 connecting holes 35 on the two connecting columns 20; the hydraulic cylinder 32 pushes the movable plate 31 to slide toward the cold storage 1, drives the two No. 1 motors 33 to move toward the cold storage 1, drives the No. 2 connecting block 34 to insert into the No. 2 connecting hole 35, and drives the connecting column 20 to slide toward the cold storage 1, and at the same time, the magnet 36 is attracted to the No. 2 connecting block 34;

[0076] After the two connecting columns 20 move from the inside of the fixed cylinder 19 toward the inside of the cold storage 1, a convex ring 22 away from the cold storage 1 blocks and seals the second through hole (45) inside the second convex block 29, thereby preventing the antifreeze lubricating oil from entering the inside of the fixed cylinder 19, thereby preventing the antifreeze lubricating oil from leaking from the end of the fixed cylinder 19 away from the cold storage 1;

[0077] At the same time, the two connecting columns 20 move inside the fixing cylinder 19 toward the inside of the cold storage 1, driving the No. 1 connecting block 21 to be inserted into the No. 1 connecting hole 16 at the end of the rotating column 15, so that the No. 1 connecting block 21 is matched and fixed with the No. 1 connecting hole 16, so that the connecting column 20 is connected and fixed with the rotating column 15;

[0078] A No. 1 motor 33 at the top drives a No. 2 connecting block 34 at the top to rotate, drives a connecting column 20 at the top to rotate, drives the rotating column 15 at the top to rotate, drives the screw 3 to rotate, makes the slide 5 slide along the guide rod 4, and drives the top cover 6 to move to align with the top surface of the storage box 2;

[0079] When the top cover 6 moves to align with the top surface of the storage box 2, a No. 1 motor 33 at the top stops, causing the screw 3 to stop rotating; a No. 1 motor 33 at the bottom drives a No. 2 connecting block 34 at the bottom to rotate, driving a connecting column 20 at the bottom to rotate, driving the rotating column 15 at the bottom to rotate, driving the guide rod 4 to rotate, driving the rotating cylinder 11 to rotate, driving the sprocket 12 to rotate, and through the transmission of the chain 13, driving the wire drum 8 to rotate, releasing the sling 9 downward, causing the cross fixing frame 10 and the top cover 6 to descend in height, so that the top cover 6 covers the top of the storage box 2, and the storage box 2 is sealed and shielded;

[0080] The cold air generated by the low-temperature refrigerator is passed into the storage box 2 through the cold air pipe 41, so that the fish in the storage box 2 is cooled and frozen smoothly. After the fish in the storage box 2 is completely frozen, the independent cooling unit is reset to separate the top cover 6 from the storage box 2, so that the temperature inside the storage box 2 is consistent with the temperature inside the cold storage 1; thereby avoiding the situation where the temperature difference between the core and the surface of the fish is too large due to rapid cooling and freezing of the fish; further avoiding the problem of cracking on the surface of the fish and serious damage to the body of the fish, thereby ensuring the quality and taste of the frozen fish.

[0081] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. An ultra-low temperature freezing device, characterized in that: include: A cold storage (1), wherein both sides of the top of the cold storage (1) are provided with independent cooling units; a low-temperature refrigerator is provided on the outside of the cold storage (1), and the low-temperature refrigerator provides cold air for the cold storage (1); Storage boxes (2), a plurality of storage boxes (2) are evenly placed on both sides of the interior of the cold storage (1); The independent cooling unit comprises a screw rod (3) and a guide rod (4); the screw rod (3) and the guide rod (4) are both located at the top of the cold storage (1), and the guide rod (4) is located at the bottom of the screw rod (3); the cross section of the guide rod (4) is a regular polygon; A slide seat (5), the slide seat (5) being arranged on the outer ring of the screw rod (3), and the slide seat (5) and the screw rod (3) being threadably matched; the guide rod (4) slidingly passes through the slide seat (5); A lifting component, the lifting component being arranged at the bottom end of the slide seat (5); A top cover (6), the top cover (6) being arranged at the bottom end of the lifting assembly; the top cover (6) being matched with the top opening of the storage box (2); A connecting component, the connecting component being arranged on the top of one end of the cold storage (1) close to the entrance; A drive assembly, the drive assembly being arranged at one end of the outer wall of the cold storage (1) close to the entrance; A ventilation component, the ventilation component is arranged between the lifting component and the inner wall of the cold storage (1) close to the entrance end; The ventilation assembly comprises: a cold air pipe (41), one end of the cold air pipe (41) being connected to a low-temperature refrigerator outside the cold storage (1); the other end of the cold air pipe (41) being connected to the top cover (6); one end of the cold air pipe (41) close to the top cover (6) being fixedly connected to the shell (7); and the length of a section of the cold air pipe (41) between the shell (7) and the top cover (6) being greater than the distance the top cover (6) is lowered; A sliding hanger (42), wherein a plurality of the sliding hangers (42) are slidably mounted on the outer ring of the guide rod (4), and the guide rod (4) is capable of rotating inside the sliding hanger (42); a pair of cross bars (43) are fixedly connected to the bottom of the sliding hanger (42); and the cold air pipe (41) is located between two of the cross bars (43); The lifting assembly comprises: A housing (7), the housing (7) being fixedly connected to the bottom end of the slide seat (5); a transmission assembly being provided on one side of the housing (7); A wire drum (8), the wire drum (8) being rotatably mounted inside the housing (7); A sling (9), the sling (9) being wound around the middle outer ring of the wire drum (8); the bottom end of the sling (9) slidingly passing through the bottom of the housing (7); A cross fixing frame (10), the cross fixing frame (10) being fixedly connected to the bottom end of the sling (9); the bottom surface of the cross fixing frame (10) being fixedly connected to the top surface of the top cover (6); The transmission assembly comprises: A rotating cylinder (11), wherein the rotating cylinder (11) is rotatably mounted on the bottom of the sliding seat (5), and the rotating cylinder (11) is slidably sleeved on the outer ring of the guide rod (4); Sprocket wheels (12), wherein two sprocket wheels (12) are respectively fixedly connected to one end of the rotating drum (11) and one end of the rotating shaft of the wire drum (8); A chain (13), wherein the chain (13) is sleeved on the outer rings of the two sprocket wheels (12); The connection component comprises: A fixing seat (14), wherein two fixing seats (14) are fixedly connected to two ends of the top of the cold storage (1); A rotating column (15), wherein two rotating columns (15) are rotatably mounted inside a fixing seat (14); the two rotating columns (15) at the top of both sides are fixedly connected to the two ends of the screw rod (3); the two rotating columns (15) at the bottom of both sides are fixedly connected to the two ends of the guide rod (4); a No. 1 connecting hole (16) is provided at the end of the rotating column (15) near the entrance of the cold storage (1); the No. 1 connecting hole (16) is composed of a circular hole and a regular polygonal hole; A connecting seat (17), the connecting seat (17) being fixedly connected to the top of one end of the cold storage (1) close to the entrance, and the connecting seat (17) passing through the outer wall of the cold storage (1); a pair of No. 1 mounting grooves (18) are provided inside the connecting seat (17); the two No. 1 mounting grooves (18) respectively correspond to the two No. 1 connecting holes (16); A fixing tube (19), wherein the fixing tube (19) is fixedly connected to the interior of the first mounting groove (18); A connecting column (20), the connecting column (20) being arranged inside the fixed cylinder (19); two ends of the connecting column (20) respectively penetrate through two ends of the fixed cylinder (19); the connecting column (20) is capable of sliding and rotating inside the fixed cylinder (19); A No. 1 connection block (21), the No. 1 connection block (21) being fixedly connected to one end of the connection column (20) close to the rotating column (15); the No. 1 connection block (21) matches the No. 1 connection hole (16); The drive assembly comprises: A translation assembly, the translation assembly being fixedly connected to one end of the outer wall of the cold storage (1) close to the entrance, and the translation assembly being located at the bottom of the connecting assembly; A mounting frame (30), wherein the mounting frame (30) is arranged on the top of the translation assembly; A movable plate (31), the movable plate (31) being slidably mounted on the top inner ring of the mounting frame (30); A hydraulic cylinder (32), the hydraulic cylinder (32) being fixedly connected to the middle of a side of the mounting frame (30) away from the cold storage (1); a piston rod of the hydraulic cylinder (32) being fixedly connected to the movable plate (31); A number one motor (33), wherein two number one motors (33) are respectively fixedly connected to the top surface and the bottom surface of the movable plate (31); A second connecting block (34), the outer ring of the rotating shaft of the first motor (33) being fixedly connected to the second connecting block (34); A No. 2 connecting hole (35), the No. 2 connecting hole (35) being provided at an end of the connecting column (20) away from the cold storage (1); the No. 2 connecting block (34) being matched with the No. 2 connecting hole (35); A magnet (36), the magnet (36) being fixedly connected to the interior of the second connecting hole (35); the magnet (36) being able to attract the second connecting block (34); The translation assembly comprises: A slide rail (37), wherein the slide rail (37) is fixedly connected to an end of the outer wall of the cold storage (1) close to the entrance, and the translation component is located at the bottom of the connection component; A screw rod (38), the screw rod (38) being rotatably mounted inside the slide rail (37); A slider (39), the slider (39) being slidably mounted inside the slide rail (37); the screw rod (38) passing through the slider (39), and the screw rod (38) and the slider (39) being threadedly matched; the top surface of the slider (39) being fixedly connected to the bottom surface of the mounting frame (30); A No. 2 motor (40) is fixedly connected to one end of the slide rail (37); a rotating shaft of the No. 2 motor (40) is fixedly connected to an end of the screw rod (38).

2. The ultra-low temperature freezing equipment according to claim 1, characterized in that: A pair of convex rings (22) are fixedly connected to the middle outer ring of the connecting column (20); a spiral ring sheet (23) is fixedly connected between the two convex rings (22); the spiral ring sheet (23) is elastic; and antifreeze lubricating oil is provided inside the fixing cylinder (19).

3. The ultra-low temperature freezing equipment according to claim 2, characterized in that: A No. 2 mounting groove (24) is provided between the two No. 1 mounting grooves (18); the No. 1 mounting groove (18) is connected to an end of the No. 2 mounting groove (24) away from the interior of the cold storage (1); an oil replenishing tank (25) is fixedly connected to the interior of the No. 2 mounting groove (24); a push plate (26) is slidably installed inside the oil replenishing tank (25); a plurality of boosting springs (27) are fixedly connected between a surface of the push plate (26) close to the interior of the cold storage (1) and an inner wall of the oil replenishing tank (25); a No. 1 protrusion (28) is fixedly connected to the top and bottom surfaces of the oil replenishing tank (25); a No. 1 passage is provided inside the No. 1 protrusion (28) The first through hole (44) is connected to the interior of the oil replenishing tank (25); a second protrusion (29) is fixedly connected to a side of the fixing cylinder (19) close to the second mounting groove (24); a second through hole (45) is provided inside the second protrusion (29), and the second through hole (45) is connected to the interior of the fixing cylinder (19); the second protrusion (29) can contact the first protrusion (28), and the second through hole (45) inside the second protrusion (29) can be connected to the first through hole (44) inside the first protrusion (28).

4. A method for using an ultra-low temperature freezing device, characterized in that: The method of use adopts an ultra-low temperature freezing device according to any one of claims 1 to 3, and the method of use comprises the following steps: S1: The caught fish are placed inside a storage box (2), and the storage box (2) is placed inside a cold storage (1); S2: Control the translation assembly to move to the independent cooling unit on one side of the corresponding storage box (2), the hydraulic cylinder (32) pushes the movable plate (31) to slide, pushes the second connecting block (34) to be inserted into the second connecting hole (35), and pushes the connecting column (20) to be connected and fixed with the rotating column (15); S3: The driving assembly drives a connecting column (20) at the top to rotate, driving the screw rod (3) to rotate, causing the slide seat (5) to slide along the guide rod (4), driving the top cover (6) to move to align with the top surface of the storage box (2); S4: the driving assembly in turn drives the guide rod (4) to rotate, driving the rotating drum (11) to rotate, and through the transmission of the sprocket (12) and the chain (13), driving the wire drum (8) to rotate, releasing the sling (9) downward, so that the top cover (6) covers the top of the storage box (2), thereby sealing and shielding the storage box (2); S5: The cold air generated by the low-temperature refrigerator is passed into the interior of the storage box (2) through the cold air pipe (41), so that the fish in the storage box (2) are cooled and frozen smoothly; S6: After the fish inside the storage box (2) is completely frozen, the independent cooling unit is reset so that the top cover (6) is separated from the storage box (2).

Images