A seedling grading and harvesting device for aquaculture

By designing ventilation openings, dustproof plates, and filter plates into aquaculture harvesting equipment, the problems of heat emission and dust ingress are solved, thereby improving the service life of the equipment and the efficiency of graded operations.

CN224440142UActive Publication Date: 2026-07-03HUAIBEI GOLDEN MANDARIN LAKE AQUACULTURE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIBEI GOLDEN MANDARIN LAKE AQUACULTURE CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When existing aquaculture and fishing equipment operates for extended periods, the heat emitted can damage electrical equipment, and dust entering the equipment can also impair its normal use.

Method used

A seedling grading and harvesting device for aquaculture was designed, comprising a ventilation opening, a dustproof plate, and a filter plate structure. The ventilation opening provides effective ventilation, while the dustproof plate and filter plate block dust and prevent dust from entering the electrical equipment.

Benefits of technology

It effectively improves the service life of electrical equipment and achieves efficient dust filtration, ensuring the normal operation of the equipment and the efficient implementation of seedling grading.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224440142U_ABST
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Abstract

This utility model discloses a seedling grading and harvesting device for aquaculture, relating to the field of aquaculture technology. It includes a base with casters at its bottom and a fish-suction pump fixedly connected to its top. A pump head is mounted on the top of the fish-suction pump, with a suction pipe on one side and a discharge pipe on the other. A fish grading machine is mounted on the top of the base. This utility model, employing the above structure, allows for effective ventilation of the fish-suction pump's interior due to the ventilation openings. The first and second dustproof plates effectively block dust in the air without obstructing airflow, while also allowing the air to bend around the ventilation openings for effective secondary filtration by the filter plates. This results in good ventilation and dust prevention, effectively extending the service life of the internal electrical equipment of the fish-suction pump.
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Description

Technical Field

[0001] This utility model belongs to the field of aquaculture technology, and specifically relates to a seedling grading and harvesting device for aquaculture. Background Technology

[0002] Aquaculture seedling harvesting equipment is a key tool for improving aquaculture efficiency, mainly including fish suction pumps and fish grading machines. Fish suction pumps utilize negative pressure to efficiently and non-destructively harvest large quantities of seedlings; fish grading machines accurately grade seedlings based on body size and weight, aiding in scientific aquaculture management. The combination of these two systems enables integrated harvesting and grading operations, significantly reducing labor and time costs, ensuring seedling quality, and making them indispensable equipment in modern aquaculture.

[0003] However, existing fishing equipment still has some shortcomings. When catching fry, the fish suction pump needs to be driven for a long time. The electrical equipment inside the fish suction pump will run for a long time. During operation, these electrical devices will release a lot of heat. If it is not effectively removed, this heat will affect the normal operation of the electrical equipment. In the past, the heat was discharged by opening ventilation vents. This would cause a lot of dust in the air to enter the fish suction pump, which would affect the subsequent use of the electrical equipment. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a seedling grading and harvesting device for aquaculture, so as to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A seedling grading and harvesting device for aquaculture includes a base with casters at the bottom and a fish suction pump fixedly connected to the top. A pump head is mounted on the top of the fish suction pump, with a suction pipe on one side and a discharge pipe on the other. A fish grading machine is mounted on the top of the base, with a handle on the other side. The discharge pipe communicates with the inside of the fish grading machine. A limiting groove is formed on one side of the fish suction pump, with a ventilation opening inside the limiting groove communicating with the inside of the fish suction pump. A limiting frame is engaged inside the limiting groove, with a first dustproof plate and a second dustproof plate fixedly connected to the inner wall of the limiting frame. A strip-shaped opening is formed at the rear of the fish suction pump, communicating with the inside of the ventilation opening, and a filter plate is inserted into the inside of the strip-shaped opening.

[0007] As a preferred technical solution, a magnet is fixedly connected to the inner wall of the vent, the rear side of the magnet is attached to the front side of the filter plate, the front side of the filter plate is made of magnetic material, the position of the filter plate corresponds to the position of the second dustproof plate, a sealing plate is fixedly connected to the rear side of the filter plate, the sealing plate covers the rear side of the strip opening, and a protrusion is fixedly connected to the rear side of the sealing plate, the shape of the protrusion's corner is arc-shaped.

[0008] As a preferred technical solution, a positioning groove is provided on the inner side of the limiting groove, and a positioning block that matches the positioning groove is fixedly connected to the other side of the limiting frame. The positioning block is fixedly connected to the four sides near the corner of the other side of the limiting frame, and the positioning block is engaged with the inner side of the positioning groove.

[0009] As a preferred technical solution, a protective plate is threadedly connected to the front side of the fish suction pump, a bolt is threadedly connected to the front side of the protective plate, the bolt is threadedly connected to the inside of the fish suction pump, and the protective plate is threadedly connected to the front side of the fish suction pump by the bolt.

[0010] As a preferred technical solution, the fish grading machine has a collection trough on the front side, and a collection box is slidably connected to the bottom inner side of the collection trough. A sorting plate is fixedly connected to the inner wall of the collection box, and the position of the collection box corresponds to the fish outlet of the fish grading machine.

[0011] As a preferred technical solution, the inner bottom of the collection tank is provided with a sliding groove that matches the collection box, and the collection box is slidably connected to the inner bottom of the collection tank through the sliding groove.

[0012] As a preferred technical solution, the fish grading machine is hinged to a protective door on the front side, the protective door covers the front side of the collection tank, the front side of the protective door has a rectangular opening, the rectangular opening communicates with the inside of the collection tank, and a transparent glass is fixedly connected to the inside of the rectangular opening, the transparent glass covers the inside of the rectangular opening.

[0013] In summary, the present invention has the following main advantages:

[0014] First, when using the fish pump, start the fish suction pump and suck the fry into the fish suction pipe and discharge the fry into the fish grading machine through the fish discharge pipe. The fish grading machine can grade the fry. Due to the opening of the ventilation port, the inside of the fish suction pump can be effectively ventilated. The first and second dustproof plates can effectively block dust in the air without hindering airflow. At the same time, the airflow can bend into the ventilation port so that the filter plate can perform good secondary filtration, thereby achieving a good ventilation and dust prevention effect and effectively improving the service life of the internal electrical equipment of the fish suction pump.

[0015] Secondly, due to the presence of the collection box, after the fish grading machine has graded the seedlings, the seedlings can be discharged into the collection box through the fish outlet. The classification plate can divide the collection space of the collection box so as to classify and store different seedlings. When the seedlings need to be taken out, the protective door is opened first, and then the collection box can be directly pulled out of the collection slot by the sliding principle of the chute. This makes it convenient and efficient for users to uniformly transfer the graded seedlings in the later stage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the inner structure of the collection tank of this utility model;

[0018] Figure 3 This is a schematic diagram of the fish suction pump structure of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A magnified structural diagram of part A;

[0020] Figure 5 This is a schematic diagram of the limiting frame structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the filter plate structure of this utility model.

[0022] Reference numerals: 1. Base; 2. Casters; 3. Handle; 4. Fish suction pump; 5. Pump head; 6. Fish suction pipe; 7. Fish outlet pipe; 8. Fish grading machine; 9. Collection trough; 10. Slide chute; 11. Collection box; 12. Sorting plate; 13. Protective door; 14. Rectangular opening; 15. Transparent glass; 16. Protective plate; 17. Bolt; 18. Limiting groove; 19. Ventilation opening; 20. Strip opening; 21. Magnet; 22. Filter plate; 23. Sealing plate; 24. Protrusion; 25. Positioning groove; 26. Limiting frame; 27. First dustproof plate; 28. Second dustproof plate; 29. ​​Positioning block. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 6This embodiment of a seedling grading and harvesting device for aquaculture includes a base 1, with casters 2 mounted on the bottom of the base 1. A fish suction pump 4 is fixedly connected to the top of the base 1, and a pump head 5 is mounted on the top of the fish suction pump 4. A fish suction pipe 6 is mounted on one side of the pump head 5, and a fish outlet pipe 7 is mounted on the other side of the pump head 5. A fish grading machine 8 is mounted on the top of the base 1, and a handle 3 is mounted on the other side of the fish grading machine 8. The fish outlet pipe 7 communicates with the inside of the fish grading machine 8. A limiting groove 18 is formed on one side of the fish suction pump 4, and a ventilation opening 19 is formed on the inside of the limiting groove 18, communicating with the inside of the fish suction pump 4. A limiting frame 26 is engaged with the inside of the limiting groove 18, and a first dustproof plate 27 and a second dustproof plate 28 are fixedly connected to the inner wall of the limiting frame 26. A strip-shaped opening is formed on the rear side of the fish suction pump 4. 20. The inner side of the strip-shaped opening 20 is connected to the vent 19. A filter plate 22 is inserted into the inner side of the strip-shaped opening 20. When in use, the fish suction pump 4 is started, which drives the pump head 5. The fish fry are sucked in through the fish suction pipe 6 and discharged into the fish grading machine 8 through the fish discharge pipe 7. The fish grading machine 8 can grade the fish fry. Due to the opening of the vent 19, the interior of the fish suction pump 4 can be effectively ventilated. The first dustproof plate 27 and the second dustproof plate 28 can effectively block dust in the air without hindering airflow. At the same time, the airflow can bend into the vent 19 so that the filter plate 22 can perform good secondary filtration, thereby achieving a good ventilation and dust prevention effect and effectively improving the service life of the electrical equipment inside the fish suction pump 4.

[0025] refer to Figures 1 to 6 A magnet 21 is fixedly connected to the inner wall of the vent 19. The rear side of the magnet 21 is attached to the front side of the filter plate 22. The front side of the filter plate 22 is made of magnetic material. The position of the filter plate 22 corresponds to the position of the second dustproof plate 28. A sealing plate 23 is fixedly connected to the rear side of the filter plate 22. The sealing plate 23 covers the rear side of the strip opening 20. A protrusion 24 is fixedly connected to the rear side of the sealing plate 23. The corners of the protrusion 24 are arc-shaped. Due to the presence of the magnet 21, the adsorption of the magnet 21 can effectively limit the position of the filter plate 22 to prevent the filter plate 22 from shifting. This can effectively improve the stability of the filter plate 22 installation and will not hinder the user from pulling out the filter plate 22 through the strip opening 20 for cleaning or maintenance of the filter plate 22 structure.

[0026] refer to Figures 1 to 5The inner side of the limiting groove 18 is provided with a positioning groove 25. The other side of the limiting frame 26 is fixedly connected with a positioning block 29 that matches the positioning groove 25. The positioning block 29 is fixedly connected to the four sides near the corner of the other side of the limiting frame 26. The positioning block 29 is engaged with the inner side of the positioning groove 25. Due to the presence of the positioning block 29, the engagement of the positioning block 29 can effectively limit the position of the limiting frame 26 to prevent the limiting frame 26 from shifting. When the limiting frame 26 needs to be disassembled later, the positioning block 29 can be pulled out. It also facilitates the user to clean or maintain the inner wall structure of the limiting frame 26 later.

[0027] refer to Figure 1 The fish pump 4 has a protective plate 16 threadedly connected to its front side, and a bolt 17 threadedly connected to the front side of the protective plate 16. The bolt 17 is threadedly connected to the inside of the fish pump 4. The protective plate 16 is threadedly connected to the front side of the fish pump 4 by the bolt 17. Due to the presence of the bolt 17, the position of the protective plate 16 can be effectively limited by screwing in the bolt 17 to prevent the protective plate 16 from shifting. When it needs to be removed, the bolt 17 can be unscrewed. It also facilitates the user to inspect or maintain the inside of the fish pump 4 later.

[0028] refer to Figure 1 and Figure 2 The fish grading machine 8 has a collection trough 9 on its front side. A collection box 11 is slidably connected to the bottom inner side of the collection trough 9. A sorting plate 12 is fixedly connected to the inner wall of the collection box 11. The position of the collection box 11 corresponds to the fish outlet of the fish grading machine 8. A sliding groove 10 matching the collection box 11 is provided on the bottom inner side of the collection trough 9. The collection box 11 is slidably connected to the bottom inner side of the collection trough 9 through the sliding groove 10. A protective door 13 is hinged to the front side of the fish grading machine 8. The protective door 13 covers the front side of the collection trough 9. A rectangular opening 14 is provided on the front side of the protective door 13. The rectangular opening 14 communicates with the inside of the collection trough 9. A transparent glass 15 is fixedly connected to the inside of the rectangular opening 14. The transparent glass 15 covers the inside of the rectangular opening 14. Because of the presence of the collection box 11, after the fish grading machine 8 has graded the seedlings, the seedlings can be discharged into the collection box 11 through the fish outlet. The classification plate 12 can divide the collection space of the collection box 11 so as to classify and store different seedlings. When the seedlings need to be taken out, the protective door 13 is opened first, and then the collection box 11 can be directly pulled out of the collection tank 9 by the sliding principle of the slide 10. This makes it convenient and efficient for users to uniformly transfer the graded seedlings later. Because of the rectangular opening 14, users can also observe the inside of the collection tank 9 at all times through the transparent glass 15 without opening the protective door 13, which makes it convenient for users to check the grading status of the seedlings at all times.

[0029] Operating Principle and Advantages: During operation, the fish suction pump 4 is activated, driving the pump head 5. Fish fry are sucked in through the suction pipe 6 and discharged into the fish grading machine 8 through the discharge pipe 7. The fish grading machine 8 grades the fry. The ventilation opening 19 provides effective ventilation to the inside of the fish suction pump 4. The first dustproof plate 27 and the second dustproof plate 28 effectively block dust in the air without obstructing airflow. This also allows the airflow to bend around the ventilation opening 19, enabling the filter plate 22 to perform good secondary filtration, thus achieving good ventilation and dust prevention. This effectively extends the service life of the internal electrical equipment of the fish suction pump 4. The presence of the magnet 21 effectively limits the position of the filter plate 22, preventing displacement and improving the stability of its installation. It also allows the user to easily remove the filter plate 22 through the slot 20 for cleaning or maintenance. The positioning block... The presence of positioning block 29 effectively limits the position of the limiting frame 26, preventing displacement. When the limiting frame 26 needs to be removed later, positioning block 29 can be pulled out. This also facilitates cleaning or maintenance of the inner wall structure of the limiting frame 26. Similarly, the presence of bolt 17 effectively limits the position of the protective plate 16, preventing displacement. When it needs to be removed, bolt 17 can be unscrewed. This also facilitates the user's later handling of the fish suction... The pump 4 can be inspected or maintained. Due to the presence of the collection box 11, after the fish grading machine 8 has graded the seedlings, the seedlings can be discharged into the collection box 11 through the fish outlet. The classification plate 12 can divide the collection space of the collection box 11 so as to classify and store different seedlings. When the seedlings need to be taken out, the protective door 13 is opened first, and then the collection box 11 can be directly pulled out of the collection trough 9 by the sliding principle of the slide 10. This makes it convenient and efficient for users to uniformly transfer the graded seedlings in the later stage.

Claims

1. A fry sorting device for aquaculture, comprising a base (1), characterized in that: The bottom of the base (1) is equipped with casters (2), and the top of the base (1) is fixedly connected to a fish suction pump (4). The top of the fish suction pump (4) is equipped with a pump head (5). A fish suction pipe (6) is installed on one side of the pump head (5), and a fish outlet pipe (7) is installed on the other side of the pump head (5). A fish grading machine (8) is installed on the top of the base (1), and a handle (3) is installed on the other side of the fish grading machine (8). The fish outlet pipe (7) is connected to the inside of the fish grading machine (8). A handle (3) is opened on one side of the fish suction pump (4). A limiting groove (18) is provided, and a ventilation opening (19) is provided on the inner side of the limiting groove (18). The ventilation opening (19) is connected to the interior of the fish suction pump (4). A limiting frame (26) is snapped into the inner side of the limiting groove (18). A first dustproof plate (27) and a second dustproof plate (28) are fixedly connected to the inner wall of the limiting frame (26). A strip-shaped opening (20) is provided on the rear side of the fish suction pump (4). The strip-shaped opening (20) is connected to the inner side of the ventilation opening (19). A filter plate (22) is inserted into the inner side of the strip-shaped opening (20).

2. A fry sorting device for aquaculture according to claim 1, characterized in that: A magnet (21) is fixedly connected to the inner wall of the vent (19). The rear side of the magnet (21) is in contact with the front side of the filter plate (22). The front side of the filter plate (22) is made of magnetic material. The position of the filter plate (22) corresponds to the position of the second dustproof plate (28). A sealing plate (23) is fixedly connected to the rear side of the filter plate (22). The sealing plate (23) covers the rear side of the strip opening (20). A protrusion (24) is fixedly connected to the rear side of the sealing plate (23). The corner of the protrusion (24) is arc-shaped.

3. The fry sorting device according to claim 1, wherein: The inner side of the limiting groove (18) is provided with a positioning groove (25), and the other side of the limiting frame (26) is fixedly connected with a positioning block (29) that matches the positioning groove (25). The positioning block (29) is fixedly connected to the four sides of the other side of the limiting frame (26) near the corner, and the positioning block (29) is engaged with the inner side of the positioning groove (25).

4. The fry sorting device according to claim 1, wherein: The front side of the fish suction pump (4) is threaded with a protective plate (16), and the front side of the protective plate (16) is threaded with a bolt (17). The rear side of the bolt (17) is threaded into the inside of the fish suction pump (4). The protective plate (16) is threaded to the front side of the fish suction pump (4) by the bolt (17).

5. The larval fish sorting apparatus according to claim 1, wherein: The fish grading machine (8) has a collection trough (9) on its front side. A collection box (11) is slidably connected to the bottom inner side of the collection trough (9). A sorting plate (12) is fixedly connected to the inner wall of the collection box (11). The position of the collection box (11) corresponds to the fish outlet of the fish grading machine (8).

6. A larval fish sorting device according to claim 5, characterised in that: The inner bottom of the collection trough (9) is provided with a sliding groove (10) that matches the collection box (11), and the collection box (11) is slidably connected to the inner bottom of the collection trough (9) through the sliding groove (10).

7. The larval fish sorting apparatus according to claim 5, wherein: The fish grading machine (8) is hinged to the front side with a protective door (13), which covers the front side of the collection tank (9). A rectangular opening (14) is provided on the front side of the protective door (13), which communicates with the inside of the collection tank (9). A transparent glass (15) is fixedly connected to the inside of the rectangular opening (14), which covers the inside of the rectangular opening (14).