Two-stage compression cooking and freezing device for king crab legs for marine transportation
By designing a two-stage compression freezing device for king crab legs for maritime transport, the device automatically adjusts the position of the crab legs using limiting plates and brushes, and removes moisture using air-drying components. This solves the problem of uneven freezing caused by crab legs piling up, achieving efficient and automated freezing results and ensuring the freshness and food safety of the crab legs.
Patent Information
- Application Number
- CN202520204250.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In existing two-stage compression freezing equipment, crab legs tend to accumulate on the conveyor belt when freezing, requiring manual adjustment, which makes the operation cumbersome and affects the freezing effect.
A device was designed that includes a support platform, a chain conveyor belt, a hydraulic cylinder, a freezing chamber, a two-stage refrigeration compressor, a limiting component, and a leveling component. The device automatically adjusts the position of the crab legs through the limiting plate and the brush to ensure uniform freezing, and removes moisture through the air drying component to achieve rapid freezing and freshness preservation.
It achieves automated and uniform freezing of crab legs, improving freezing efficiency and quality, reducing manual intervention, and ensuring freezing effect and food safety.
Smart Images
Figure CN223787039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dual-stage compression freezing technology, and in particular to a dual-stage compression freezing device for king crab legs used in maritime transport. Background Technology
[0002] King crab legs are the edible leg parts of the king crab, prized for their delicious meat, and often used to prepare a variety of culinary dishes. Using a two-stage compression freezing system before sea transport is crucial. This system rapidly cools the crab, typically to below -30°C, effectively inhibiting microbial growth, reducing nutrient loss, and preserving the integrity of the crab leg's cell structure. This results in tender meat that retains its flavor, significantly maintaining the freshness and quality of the crab legs. Simultaneously, high-temperature cooking kills harmful microorganisms, and the closed-loop operation prevents secondary contamination, ensuring food safety and hygiene. Furthermore, frozen king crab legs have a shelf life extended to approximately 12-18 months, adapting to long-haul sea transport and varying seasonal market demands. They can also be transported and stored at relatively high temperatures, reducing costs, saving space, and improving the economic efficiency of transportation and storage.
[0003] Currently, commercially available two-stage compression freezing devices typically place steamed king crab legs on a conveyor belt for rapid freezing to lock in freshness. However, in practice, when the king crab legs are poured onto the conveyor belt, they tend to clump together. This requires manual adjustment to the center of the conveyor belt and leveling them. This process is not only labor-intensive and time-consuming, but also cumbersome, and can lead to uneven heating of the king crab legs during freezing, affecting the freezing effect and quality. Therefore, a two-stage compression freezing device for king crab legs used in maritime transport is proposed to solve these problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a two-stage compression freezing device for king crab legs used in maritime transport. It aims to improve upon the existing two-stage compression freezing devices that often place steamed king crab legs on a conveyor belt for freezing and freshness locking. However, the crab legs tend to pile up when being unloaded, and manual adjustment is cumbersome and affects the freezing effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-stage compression freezing device for king crab legs used in sea transport, comprising a support platform, a chain conveyor belt inside the support platform, a hydraulic cylinder fixedly connected to one side of the outer wall of the support platform, a freezing chamber fixedly connected to the output end of the hydraulic cylinder, a two-stage refrigeration compressor fixedly connected to the upper surface of the freezing chamber, a limit assembly installed on the upper surface of the support platform, a processing chamber installed on one side of the upper surface of the support platform, and a leveling assembly installed inside the processing chamber;
[0006] The limiting component includes multiple support blocks, the lower surfaces of which are fixedly connected to the upper surface of the support platform. One of the support blocks has a screw threadedly connected inside, one end of which is rotatably connected to a limiting plate. A limiting rod is fixedly connected to one side of the outer wall of the limiting plate, and the outer wall of the limiting rod is slidably connected to the inside of the other support blocks.
[0007] Furthermore, the leveling assembly includes a second hydraulic cylinder, one side of which is fixedly connected to the upper surface of the processing chamber. A brush is fixedly connected to the output end of the second hydraulic cylinder through the upper surface of the processing chamber, and a second limiting rod is fixedly connected to the upper surface of the brush. The second limiting rod is slidably connected to the upper surface of the processing chamber.
[0008] Furthermore, a diversion box is fixedly connected to the upper surface of the processing chamber, a drying component is installed inside the diversion box, and a collection component is installed on the lower surface of the support platform.
[0009] Furthermore, the air drying assembly includes an air inlet fan, the outer wall of which is disposed through the interior of the distribution box, a filter plate is slidably connected inside the distribution box, and an air outlet fan is disposed through the lower side of the interior of the processing chamber.
[0010] Furthermore, the collection assembly includes an inclined plate, one side of the outer wall of the inclined plate is fixedly connected to the inner wall of the support platform, a guide channel is fixedly connected to the lower surface of the support platform, a collection box is fixedly connected to the lower surface of the guide channel, a water outlet pipe is fixedly connected to one side of the outer wall of the collection box, and a valve is fixedly connected to one side of the outer wall of the water outlet pipe.
[0011] Furthermore, both the exhaust fan and the intake fan are covered with dust covers, and one side of the dust cover is fixedly connected to one side of the outer wall of the treatment room.
[0012] Furthermore, the inclined plates are arranged symmetrically from left to right, and the two inclined plates are located below the processing chamber.
[0013] Furthermore, the filter plate is positioned directly below the air inlet fan.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by rotating the lead screw, the limiting plate drives the limiting rod one to slide inside the support block, thereby achieving the effect of restricting the crab legs in the middle of the chain plate conveyor belt. Then, the chain plate conveyor belt transports the crab legs to the bottom of the processing chamber. The hydraulic cylinder two drives the brush to abut against the top of the crab legs, and the brush flattens the accumulated crab legs. At this time, the chain plate conveyor belt transports the crab legs to the bottom of the freezing chamber. The double-click freezing compressor controls the freezing chamber to quickly freeze the crab legs to achieve the effect of locking in freshness, thereby improving the practicality of the device.
[0016] 2. In this utility model, the air outside the treatment room is filtered through a dust cover by the air intake fan and then enters the distribution box. The air is then filtered a second time by the filter plate. The air is then transported through the treatment chamber to the top of the crab legs, which facilitates the blowing away of water vapor on the crab legs. The water vapor is then transported out of the treatment chamber by the exhaust fan. At the same time, the water droplets are collected by the collection box through the guide channel, thus achieving the effect of collecting water droplets and improving the practicality of the device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a two-stage compression freezing device for king crab legs used in maritime transport, as proposed in this utility model.
[0018] Figure 2 A schematic diagram of the brush section of a two-stage compression freezing device for king crab legs used in maritime transport, as proposed in this utility model.
[0019] Figure 3 A schematic diagram of the collection box portion of a two-stage compression freezing device for king crab legs used in maritime transport, as proposed in this utility model.
[0020] Figure 4 This is a schematic diagram of the inclined plate section of a two-stage compression freezing device for king crab legs used in maritime transport, as proposed in this utility model.
[0021] Legend:
[0022] 1. Support platform; 2. Chain conveyor belt; 3. Hydraulic cylinder one; 4. Freezing chamber; 5. Two-stage refrigeration compressor; 6. Support block; 7. Lead screw; 8. Limit rod one; 9. Limit plate; 10. Processing chamber; 11. Hydraulic cylinder two; 12. Brush; 13. Limit rod two; 14. Exhaust fan; 15. Dust cover; 16. Diverter box; 17. Inlet fan; 18. Filter plate; 19. Inclined plate; 20. Guide channel; 21. Collection box; 22. Water outlet pipe; 23. Valve. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1 , Figure 2 and Figure 3An embodiment of this utility model is provided: a two-stage compression freezing device for king crab legs for sea transport, including a support platform 1, a chain conveyor belt 2 inside the support platform 1, a hydraulic cylinder 3 fixedly connected to one side of the outer wall of the support platform 1, a freezing chamber 4 fixedly connected to the output end of the hydraulic cylinder 3, a two-stage refrigeration compressor 5 fixedly connected to the upper surface of the freezing chamber 4, a limit component installed on the upper surface of the support platform 1, a processing chamber 10 installed on one side of the upper surface of the support platform 1, and a leveling component installed inside the processing chamber 10;
[0025] The limiting assembly includes multiple support blocks 6, the lower surfaces of which are fixedly connected to the upper surface of the support platform 1. One of the support blocks 6 is internally threaded with a lead screw 7, one end of which is rotatably connected to a limiting plate 9. A limiting rod 8 is fixedly connected to one side of the outer wall of the limiting plate 9. The outer wall of the limiting rod 8 is slidably connected to the interior of the other support blocks 6. The leveling assembly includes a second hydraulic cylinder 11, one side of which is fixedly connected to the upper surface of the processing chamber 10. The output end of the second hydraulic cylinder 11 passes through the upper surface of the processing chamber 10 and is fixedly connected to a brush 12. A limiting rod 13 is fixedly connected to the upper surface of the brush 12. The limiting rod 13 is slidably connected to the upper surface of the processing chamber 10.
[0026] It should be noted that in this utility model, the number of support blocks 6 is at least two.
[0027] Specifically, the support platform 1 provides the basic support for the entire device. An internal chain conveyor belt 2 transports king crab legs, delivering them into the freezing area through continuous and stable movement. A hydraulic cylinder 3, fixedly connected to one side of the support platform 1, drives the freezing chamber 4. The output end of the hydraulic cylinder 3 is connected to the freezing chamber 4, allowing it to lift the chamber for easy access to the crab legs and cleaning of any remaining impurities. A two-stage refrigeration compressor 5, fixedly connected to the upper surface of the freezing chamber 4, achieves deep cooling through a highly efficient two-stage compression system, effectively reducing the temperature and quickly completing the freezing process for the king crab legs. Limiting components installed on the upper surface of the support platform 1 are used for precise adjustment and control of the equipment's operation. The lower surfaces of multiple support blocks 6 are fixedly connected to the support platform 1 to ensure support stability. One of the support blocks 6 has internal threaded connections... A lead screw 7 is rotatably connected to a limiting plate 9 at one end to ensure the precise position of the limiting plate 9 during operation and prevent equipment deviation. A limiting rod 8 is connected to one side of the outer wall of the limiting plate 9. The outer wall of the limiting rod 8 is slidably connected to another support block 6 to maintain the coordination and stability of the system. The leveling assembly installed inside the processing chamber 10 on one side of the support platform 1 includes a hydraulic cylinder 11. One side of the outer wall of the hydraulic cylinder 11 is fixedly connected to the upper surface of the processing chamber 10. A brush 12 is fixedly connected to the output end of the hydraulic cylinder 11. The brush 12 is responsible for leveling the king crab legs that are piled up or irregularly distributed during the freezing process to ensure their flatness in subsequent operations. A limiting rod 13 is fixedly connected to the upper surface of the brush 12 to limit the range of motion of the brush 12 and prevent the brush 12 from moving excessively during operation, ensuring that each leveling action is performed within a predetermined range, thereby improving processing efficiency.
[0028] Reference Figure 1 , Figure 2 and Figure 3 A diversion box 16 is fixedly connected to the upper surface of the processing chamber 10. A drying assembly is installed inside the diversion box 16, and a collection assembly is installed on the lower surface of the support platform 1. The drying assembly includes an air inlet fan 17, the outer wall of which is installed through the interior of the diversion box 16. A filter plate 18 is slidably connected inside the diversion box 16, and an outlet fan 14 is installed through the lower side of the interior of the processing chamber 10. The collection assembly includes an inclined plate 19, one side of which is fixedly connected to the inner wall of the support platform 1, and the lower surface of the support platform 1 is fixedly connected to... A guide channel 20 is provided, and a collection box 21 is fixedly connected to the lower surface of the guide channel 20. A water outlet pipe 22 is fixedly connected to one side of the outer wall of the collection box 21, and a valve 23 is fixedly connected to one side of the outer wall of the water outlet pipe 22. Dust covers 15 are provided on the outer walls of the exhaust fan 14 and the intake fan 17, and one side of the outer wall of the dust cover 15 is fixedly connected to one side of the outer wall of the treatment chamber 10. Inclined plates 19 are arranged symmetrically on the left and right, and the two inclined plates 19 are located directly below the treatment chamber 10. A filter plate 18 is located directly below the intake fan 17.
[0029] Specifically, a drying assembly is installed inside a distribution box 16 fixedly connected to the upper surface of the processing chamber 10. An inlet fan 17 of the drying assembly is installed through the outer wall inside the distribution box 16. The inlet fan 17 introduces air into the processing chamber 10 to promote the drying process on the surface of the crab legs. A filter plate 18 slidably connected inside the distribution box 16 filters dust and other impurities from the incoming air, ensuring air cleanliness and preventing contamination of the king crab legs during the drying process. An outlet fan 14, installed through the lower side of the processing chamber 10, is responsible for expelling moisture from the processing chamber 10, maintaining air circulation, and preventing moisture accumulation from affecting the drying effect. The collection assembly installed on the lower surface of the support platform 1 consists of an inclined plate 19, a guide channel 20, and a collection box 21. One side of the outer wall of the inclined plate 19 is fixedly connected to the inner wall of the support platform 1, guiding the flowing material so that the collected material can smoothly flow into the collection box 21 through the guide channel 20. The water outlet pipe 22, fixedly connected to one side of the outer wall of the collection box 21, is responsible for draining the liquid or water in the collection box 21 to prevent overflow from affecting the operation. The valve 23, fixedly connected to one side of the outer wall of the water outlet pipe 22, is used to regulate the discharge volume of water and control the flow of water. The outer walls of the exhaust fan 14 and the intake fan 17 are both covered with dust covers 15. The dust covers 15 can effectively prevent external dust from entering the equipment, protect the normal operation of the fans, and reduce maintenance work. One side of the outer wall of the dust cover 15 is fixedly connected to the outer wall of the processing chamber 10 to further enhance protection. The inclined plates 19 are symmetrically arranged to ensure that the items in the processing chamber 10 are evenly stressed, so that the collected material can flow to the collection box 21. Both inclined plates 19 are located directly below the processing chamber 10 to ensure that the drying and collection work can be completed efficiently. The filter plate 18 is located directly below the intake fan 17. The function of the filter plate 18 is to filter dust, maintain the air quality of the intake air, and prevent dust from entering the drying system and affecting the quality of the crab legs.
[0030] Working principle: When using this device, first place the steamed crab legs above the chain conveyor belt 2. Then, rotate the screw 7, which drives the limiting plate 9 to push the crab legs to the middle of the chain conveyor belt 2. Then, start the hydraulic cylinder 11, which drives the brush 12 to flatten the accumulated crab legs. The chain conveyor belt 2 then transports the crab legs to the bottom of the processing chamber 10. At the same time, start the air blower 17, which blows the water vapor on the surface of the crab legs towards the inclined plate 19. The inclined plate 19 then guides the water vapor through the guide plate... The guide channel 20 transports the crab legs to the collection box 21 for collection and processing. At the same time, the exhaust fan 14 is activated to transport the water vapor out of the processing chamber 10. When the intake fan 17 is in operation, the air passes through the filter plate 18 to filter dust. Then, the crab legs are transported to the bottom of the freezing chamber 4 by the chain conveyor belt 2. The two-stage refrigeration compressor 5 controls the freezing chamber 4 to quickly freeze the crab legs, thereby achieving the effect of rapid freezing for preservation. After use, the residue on the upper surface of the chain conveyor belt 2 can be cleaned by activating the hydraulic cylinder 3.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dual stage compression blast freezing apparatus for shipping of king crab legs, comprising a support table (1), characterised in that: The support table (1) is internally provided with a chain plate conveyor (2), one side of the outer wall of the support table (1) is fixedly connected with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is fixedly connected with a freezing chamber (4), the upper surface of the freezing chamber (4) is fixedly connected with a two-stage freezing compressor (5), the upper surface of the support table (1) is provided with a limiting assembly, one side of the upper surface of the support table (1) is provided with a treatment chamber (10), the inside of the treatment chamber (10) is provided with a leveling assembly. The limiting assembly comprises a plurality of supporting blocks (6), the lower surfaces of the supporting blocks (6) are fixedly connected to the upper surface of the support table (1), one of the supporting blocks (6) is internally threadedly connected with a lead screw (7), one end of the lead screw (7) is rotatably connected with a limiting plate (9), one side of the outer wall of the limiting plate (9) is fixedly connected with a limiting rod (8), and the outer wall of the limiting rod (8) is slidably connected in the inside of the other supporting block (6).
2. A dual stage compression frozen device for shipping of king crab legs according to claim 1, wherein: The leveling assembly comprises a hydraulic cylinder (11), one side of the outer wall of the hydraulic cylinder (11) is fixedly connected to the upper surface of the treatment chamber (10), the output end of the hydraulic cylinder (11) penetrates through the upper surface of the treatment chamber (10) and is fixedly connected with a plate brush (12), and the upper surface of the plate brush (12) is fixedly connected with a limiting rod (13); the limiting rod (13) is slidably connected to the upper surface of the treatment chamber (10).
3. A dual stage compression frozen device for shipping of king crab legs according to claim 2, wherein: The upper surface of the treatment chamber (10) is fixedly connected with a shunt box (16), the inside of the shunt box (16) is provided with a air-drying assembly, and the lower surface of the support table (1) is provided with a collecting assembly.
4. A dual stage compression frozen device for shipping of king crab legs according to claim 3, wherein: The air-drying assembly comprises an air inlet fan (17), the outer wall of the air inlet fan (17) penetrates into the inside of the shunt box (16), the inside of the shunt box (16) is slidably connected with a filter plate (18), and the inside of the treatment chamber (10) is provided on the lower side with an air outlet fan (14).
5. A dual stage compression frozen device for shipping of king crab legs according to claim 4 wherein: The collecting assembly comprises an inclined plate (19), one side of the outer wall of the inclined plate (19) is fixedly connected to the inner wall of the support table (1), the lower surface of the support table (1) is fixedly connected with a guide channel (20), the lower surface of the guide channel (20) is fixedly connected with a collecting box (21), one side of the outer wall of the collecting box (21) is fixedly connected with a water outlet pipe (22), one side of the outer wall of the water outlet pipe (22) is fixedly connected with a valve (23).
6. A dual stage compression frozen device for shipping of king crab legs according to claim 4 wherein: The outer walls of the air outlet fan (14) and the air inlet fan (17) are covered with dust covers (15), and one side of the outer wall of the dust cover (15) is fixedly connected to one side of the outer wall of the treatment chamber (10).
7. A dual stage compression frozen device for shipping of king crab legs according to claim 5 wherein: The inclined plates (19) are symmetrically arranged left and right, and two inclined plates (19) are arranged below the treatment chamber (10).
8. A dual stage compression frozen device for shipping of king crab legs according to claim 4, wherein: The filter plate (18) is arranged directly below the air inlet fan (17).