Fry screening device for aquaculture
By designing an automated fish fry screening device, which utilizes moving and tilting components to achieve three-stage screening of fish fry, the problems of high labor intensity and slow speed of manual screening are solved, thereby improving screening efficiency and fish fry survival rate.
Patent Information
- Application Number
- CN202423244596.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Current techniques for selecting fish fry are labor-intensive and slow, which may harm the fry, affecting their health and survival rate, and increasing aquaculture costs.
Design a fish fry screening device for aquaculture, which automatically performs three-stage screening using a moving component and a tilting component. The movement and tilting of the screening basket are driven by an electric push rod and a motor to achieve the separation of fish fry of different sizes.
It reduced the workload of staff, improved screening efficiency, reduced damage to fish fry, and increased the flexibility and accuracy of screening.
Smart Images
Figure CN223614046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fish fry screening technology, specifically a fish fry screening device for aquaculture. Background Technology
[0002] Fish fry selection is an indispensable step in aquaculture. Its main purpose is to increase the proportion of large fish and reduce the feed conversion ratio. Due to individual differences in the growth of fish fry, some fry may grow slowly or be deformed. If they are not selected, these fry will consume too much feed, affecting the overall aquaculture efficiency. Through selection, fish fry of different sizes and growth rates can be separated for targeted cultivation, thereby improving the survival rate and growth rate of the fish fry and ensuring their growth and development.
[0003] The common method for screening fish fry requires fish farmers to manually sift the fry through a sieve basket. However, manual screening is not only labor-intensive and slow, but it may also cause damage to the fry, such as squeezing or scratching. This not only increases labor costs but may also affect the health and survival rate of the fry, thus increasing the cost of aquaculture. Therefore, it is necessary to develop a fish fry screening device for aquaculture that can reduce the labor intensity of workers while improving the efficiency of fish fry screening. Utility Model Content
[0004] The purpose of this invention is to provide a fish fry screening device for aquaculture, so as to solve the technical problems mentioned in the background art, which are that manual screening of fish fry is not only labor-intensive but also slow.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fish fry screening device for aquaculture, comprising a device body, a small screening basket, and a large screening basket. A first box, a second box, and a third box are sequentially arranged on the device body, with the small and large screening baskets respectively movably disposed within the first and second boxes. Connecting plates are symmetrically arranged on both the small and large screening baskets, and connecting frames are connected to the connecting plates. A tilting component is provided on the connecting frame, and the connecting frame and the connecting plates are movably connected via the tilting component. An electric push rod is fixedly installed on the connecting frame. A support frame is fixedly installed on the device body, and a moving component is provided on the support frame. The small and large screening baskets are connected to the moving component via the electric push rod.
[0006] Preferably, the tilting assembly includes a sealing box, a second motor, a main gear, a rotating shaft, and a driven gear. The sealing box is fixedly installed on both sides of the connecting frame, the second motor is fixedly installed inside the sealing box, the main gear is fixedly installed at the output end of the second motor, the rotating shaft is movably installed inside the sealing box, and one end of the rotating shaft extends through the sealing box and is fixedly connected to the connecting plate. The driven gear is fixedly installed on the rotating shaft and meshes with the main gear.
[0007] Preferably, the moving component includes a primary motor, a lead screw, a slip ring, and a guide groove. The primary motor is fixedly mounted on the support frame, the lead screw is fixedly mounted on the output end of the primary motor, the slip ring is threadedly connected to the lead screw, the guide groove is disposed on the support frame, and the bottom end of the slip ring extends through the guide groove and is connected to the electric push rod.
[0008] Preferably, a power supply block is installed inside the sealed box, and the power supply block is connected to the second motor via a line.
[0009] Preferably, both the small and large sieve baskets are fixedly installed with frames, the frames are symmetrically provided with connecting grooves, and the bottom end of the connecting plate passes through the connecting groove. The frame is provided with a threaded rod, the connecting plate is provided with a threaded groove, and one end of the threaded rod passes through the threaded groove to limit the connection plate.
[0010] Preferably, each of the No. 1, No. 2 and No. 3 boxes has an outlet at its bottom side, and a sealing cap is threaded onto the outlet.
[0011] Preferably, each of the four corners of one end of the device body is provided with a movable wheel, which is used to move the device body.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model facilitates automatic screening of fish fry by incorporating a moving component and a tilting component. First, the fish fry are placed into a small sieve basket in box number one. Then, a control device activates an electric push rod to move the small sieve basket upwards. During this process, the smallest fish fry in the small sieve basket will pass through the holes and fall into box number one. Next, the moving component is activated to move the small sieve basket above box number two. Finally, the tilting component is activated to rotate and tilt the small sieve basket, thereby tilting it upwards. The fish fry in the basket are poured into the large sieve basket in the second box. Then, the same operation is performed to move the large sieve basket out of the second box. During this process, the medium-sized fish fry in the large sieve basket will also crawl out through the holes on the large sieve basket and fall into the second box. Then, the same operation is performed to pour the largest fish fry in the large sieve basket into the third box using the moving and pouring components. This achieves three-level screening of fish fry, eliminating the need for manual screening of fish fry, reducing the labor intensity of staff and improving the screening efficiency of fish fry.
[0014] 2. This utility model, by installing a screen basket that facilitates easy disassembly and replacement, first places the screen basket under the connecting plate, aligns the connecting plate with the connecting groove, then pushes it upward to make the connecting plate snap into the connecting groove, and then rotates the threaded rod to pass through the threaded groove, thus stably connecting the screen basket and the connecting plate. This makes the screen basket replacement operation quick and convenient, and screen baskets with different hole sizes can be replaced according to the screening of fish fry of different sizes, further improving the flexibility of the fish fry screening device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the connection structure between the sieve basket and the connecting plate of this utility model;
[0017] Figure 3 This is a schematic diagram of the tilting component structure of this utility model;
[0018] Figure 4 for Figure 2 An enlarged schematic diagram of structure A in the middle.
[0019] In the diagram: 1. Device body; 2. Box 1; 3. Box 2; 4. Box 3; 5. Small sieve basket; 6. Support frame; 7. Motor 1; 8. Lead screw; 9. Slip ring; 10. Electric push rod; 11. Connecting frame; 12. Connecting plate; 13. Frame; 14. Sealing box; 15. Motor 2; 16. Main gear; 17. Rotating shaft; 18. Driven gear; 19. Power supply block; 20. Connecting groove; 21. Threaded rod; 22. Threaded groove; 23. Outlet; 24. Sealing cover; 25. Guide groove; 26. Moving wheel; 27. Large sieve basket. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 - Figure 4A fish fry screening device for aquaculture includes a device body 1, a small sieve basket 5, and a large sieve basket 27. A first box 2, a second box 3, and a third box 4 are arranged sequentially on the device body 1. The small sieve basket 5 and the large sieve basket 27 are respectively movably disposed within the first box 2 and the second box 3. Connecting plates 12 are symmetrically arranged on both the small sieve basket 5 and the large sieve basket 27. A connecting frame 11 is connected to the connecting plate 12, and a tilting component is provided on the connecting frame 11. The connecting frame 11 and the connecting plate 12 are movably connected via the tilting component. An electric push rod 10 is fixedly installed on the connecting frame 11. A support frame 6 is fixedly installed on the device body 1, and a moving component is provided on the support frame 6. 5 and the large sieve basket 27 are connected to the moving component via an electric push rod 10. Fish fry screening is an indispensable step in aquaculture. Due to individual differences in fish fry growth, some fry may grow slowly or be deformed. Without screening, these fry will consume excessive feed, affecting overall aquaculture efficiency. Screening separates fry of different sizes and growth rates for targeted cultivation, thereby improving fry survival rate and growth rate, ensuring fry growth and development. Common fry screening methods require farmers to manually screen the fry using sieve baskets. However, manual fry screening is not only labor-intensive and slow, but may also... Injuring or scratching the fish fry not only increases labor costs but may also affect their health and survival rate, thus increasing aquaculture costs. To facilitate automatic fry selection, the fry are first placed in the small sieve basket 5 in box 1 (2). Then, the electric push rod 10, activated by the control device, moves the small sieve basket 5 upwards. During this process, the smallest fry in the small sieve basket 5 will pass through the holes and fall into box 1 (2). Next, the moving component moves the small sieve basket 5 above box 2 (3). Finally, the tilting component rotates and tilts the small sieve basket 5, thus tilting the fry inside. Inside the large sieve basket 27 in box 3, the same operation is performed to move the large sieve basket 27 out of box 3. During this process, the medium-sized fry inside the large sieve basket 27 will also crawl out through the holes on the large sieve basket 27 and fall into box 3 (the holes on the small sieve basket 5 and the large sieve basket 27 are different sizes, with the holes on the small sieve basket 5 being larger and the holes on the large sieve basket 27 being smaller). Then, the same operation is performed to use the moving component and the tilting component to tilt the largest fry in the large sieve basket 27 into box 4, thereby achieving three-stage screening of the fry. This eliminates the need for manual screening of the fry, reducing the labor intensity of the staff and improving the screening efficiency of the fry.
[0022] Please see Figure 2 and Figure 3The tilting assembly includes a sealing box 14, a second motor 15, a main gear 16, a rotating shaft 17, and a driven gear 18. The sealing box 14 is fixedly installed on both sides of the connecting frame 11. The second motor 15 is fixedly installed inside the sealing box 14. The main gear 16 is fixedly installed at the output end of the second motor 15. The rotating shaft 17 is movably installed inside the sealing box 14, with one end of the rotating shaft 17 extending through the sealing box 14 and fixedly connected to the connecting plate 12. The driven gear 18 is fixedly installed on the rotating shaft 17 and meshes with the main gear 16. A power supply block 19 is installed inside the sealing box 14, and the power supply block 19 is connected to the second motor 15 through a line. When the fish fry are poured out, the power supply block 19 is first started by the control device to supply power to the second motor 15. The start of the second motor 15 will synchronously drive the main gear 16 to rotate. The main gear 16 will synchronously drive the rotating shaft 17 to rotate through the meshing gear 18. When the rotating shaft 17 rotates, it will synchronously drive the small screen basket 5 or the large screen basket 27 to rotate through the connecting plate 12, thereby causing the small screen basket 5 or the large screen basket 27 to tilt and pour out the fish fry.
[0023] Please see Figure 1 The moving assembly includes a primary motor 7, a lead screw 8, a slip ring 9, and a guide groove 25. The primary motor 7 is fixedly mounted on the support frame 6, the lead screw 8 is fixedly mounted on the output end of the primary motor 7, the slip ring 9 is threadedly connected to the lead screw 8, and the guide groove 25 is set on the support frame 6. The bottom end of the slip ring 9 extends through the guide groove 25 and is connected to the electric push rod 10. When moving the small sieve basket 5 or the large sieve basket 27, the primary motor 7 is started by the control device. The primary motor 7 will drive the slip ring 9 to move on the lead screw 8. At the same time, one end of the slip ring 9 will drive the small sieve basket 5 or the large sieve basket 27 to move through the electric push rod 10 and the connecting frame 11, so that fish fry of different sizes are dispersed in different tanks.
[0024] Please see Figure 1 , Figure 2 and Figure 4 Both the small sieve basket 5 and the large sieve basket 27 are fixedly installed with a frame 13. The frame 13 is symmetrically provided with connecting grooves 20, and the bottom end of the connecting plate 12 passes through the connecting groove 20. The frame 13 is provided with a threaded rod 21, and the connecting plate 12 is provided with a threaded groove 22. One end of the threaded rod 21 passes through the threaded groove 22 to limit the connection plate 12. When it is convenient to disassemble and replace the sieve basket, first place the sieve basket under the connecting plate 12, align the connecting plate 12 with the connecting groove 20, then push it upward to make the connecting plate 12 snap into the connecting groove 20, and then rotate the threaded rod 21 to pass into the threaded groove 22 to stably connect the sieve basket and the connecting plate 12 (disassembly is the same). This makes the replacement of the sieve basket quick and convenient. Different sieve baskets with different hole sizes can be replaced according to the sieving of fish fry of different sizes, further improving the flexibility of the fish fry sieving device.
[0025] Please see Figure 1 Each of the three tanks, namely No. 1 (2), No. 2 (3), and No. 3 (4), has an outlet 23 at its bottom side. A sealing cap 24 is threaded onto the outlet 23. When it is necessary to release the fish fry, simply open the sealing cap 24 to seal the outlet 23. At that time, the fish fry in that area of the tank will be guided by the water flow to swim out of the tank through the outlet 23, thus allowing for the separate breeding of fish fry of different sizes.
[0026] Please see Figure 1 Each of the four corners of one end of the device body 1 is provided with a movable wheel 26. The movable wheel 26 is used to move the device body 1. The position of the fish fry screening device can be easily moved by the movable wheel 26.
[0027] Working principle: When facilitating automatic selection of fish fry, the fish fry are first placed into the small sieve basket 5 in box 1 (2). Then, the electric push rod 10, activated by the control device, moves the small sieve basket 5 upwards. During this process, the smallest fish fry in the small sieve basket 5 will pass through the holes and fall into box 1 (2). Next, the moving component is activated, moving the small sieve basket 5 above box 2 (3). Then, the tilting component is activated, causing the small sieve basket 5 to rotate and tilt, thus tilting the fish fry in the small sieve basket 5 into the large sieve basket 27 in box 2 (3). The same operation is then performed, moving the large sieve basket 27 out of box 2 (3). During this process, medium-sized fish fry in the large sieve basket 27 will also pass through the holes and fall into box 2 (3). (The holes in the small sieve basket 5 and the large sieve basket 27 are different sizes; the holes in the small sieve basket 5 are larger than those in the large sieve basket 27.) (The holes are larger than those on the large sieve basket 27.) Then, following the same operation, the largest fish fry in the large sieve basket 27 is poured into the third box 4 using the moving and tilting components. This achieves three-stage screening of the fish fry, eliminating the need for manual screening and reducing the labor intensity of the staff while improving the screening efficiency. When it is convenient to disassemble and replace the sieve basket, first place the sieve basket under the connecting plate 12, align the connecting plate 12 with the connecting groove 20, then push it upwards to make the connecting plate 12 snap into the connecting groove 20. Then rotate the threaded rod 21 to insert it into the threaded groove 22, and the sieve basket and the connecting plate 12 are stably connected (disassembly is the same). This makes the replacement of the sieve basket quick and convenient. Different sieve baskets with different hole sizes can be replaced according to the size of the fish fry to be screened, further improving the flexibility of the fish fry screening device.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fish fry screening device for aquaculture, characterized in that: The device includes a main body (1), a small sieve basket (5), and a large sieve basket (27). A first box (2), a second box (3), and a third box (4) are arranged sequentially on the main body (1). The small sieve basket (5) and the large sieve basket (27) are respectively movably disposed within the first box (2) and the second box (3). A connecting plate (12) is symmetrically arranged on both the small sieve basket (5) and the large sieve basket (27). The connecting plate (12) is connected to... A connecting frame (11) is provided with a tilting component, and the connecting frame (11) and the connecting plate (12) are movably connected through the tilting component. An electric push rod (10) is fixedly installed on the connecting frame (11). A support frame (6) is fixedly installed on the device body (1). A moving component is provided on the support frame (6), and the small sieve basket (5) and the large sieve basket (27) are connected to the moving component through the electric push rod (10).
2. The fish fry screening device for aquaculture according to claim 1, characterized in that: The tilting assembly includes a sealing box (14), a second motor (15), a main gear (16), a rotating shaft (17), and a driven gear (18). The sealing box (14) is fixedly installed on both sides of the connecting frame (11). The second motor (15) is fixedly installed inside the sealing box (14). The main gear (16) is fixedly installed at the output end of the second motor (15). The rotating shaft (17) is movably installed inside the sealing box (14), and one end of the rotating shaft (17) extends through the sealing box (14) and is fixedly connected to the connecting plate (12). The driven gear (18) is fixedly installed on the rotating shaft (17), and the driven gear (18) meshes with the main gear (16).
3. The fish fry screening device for aquaculture according to claim 1, characterized in that: The moving component includes a first motor (7), a lead screw (8), a slip ring (9), and a guide groove (25). The first motor (7) is fixedly mounted on the support frame (6). The lead screw (8) is fixedly mounted on the output end of the first motor (7). The slip ring (9) is threadedly connected to the lead screw (8). The guide groove (25) is set on the support frame (6), and the bottom end of the slip ring (9) extends through the guide groove (25) and is connected to the electric push rod (10).
4. The fish fry screening device for aquaculture according to claim 2, characterized in that: The sealed box (14) is equipped with a power supply block (19), and the power supply block (19) is connected to the second motor (15) through a line.
5. The fish fry screening device for aquaculture according to claim 1, characterized in that: Both the small sieve basket (5) and the large sieve basket (27) are fixedly installed with a frame (13). The frame (13) is symmetrically provided with connecting grooves (20), and the bottom end of the connecting plate (12) passes through the connecting groove (20). The frame (13) is provided with a threaded rod (21), and the connecting plate (12) is provided with a threaded groove (22). One end of the threaded rod (21) passes through the threaded groove (22) to limit the connection plate (12).
6. The fish fry screening device for aquaculture according to claim 1, characterized in that: The bottom side of each of the first box (2), the second box (3) and the third box (4) is provided with an outlet (23), and a sealing cap (24) is threaded onto the outlet (23).
7. The fish fry screening device for aquaculture according to claim 1, characterized in that: The device body (1) is provided with four corners of one end of each of the four corners of each of the four corners. The four corners of each corner are used to move the device body (1).