Fry screening device for aquaculture

Abstract

The invention provides a fry screening device for aquaculture, and relates to the technical field of fry screening, the fry screening device comprises a screening box, a water tank is arranged in the middle of the inner side of the screening box, and a screening assembly is arranged in the middle of the upper end of the water tank; the screening assembly comprises a screening hopper, the screening hopper is movably installed in the middle of the upper end of the screening box and is driven by a motor to rotate, a filter screen is arranged in the middle of the inner side of the screening hopper, and a funnel-shaped fry filtering box is arranged at the bottom of the inner side of the screening hopper and located in the middle of the bottom end of the filter screen. A discharging groove is formed in the right end of the fry filtering box; and the collecting assembly comprises a storage groove. Through the structural arrangement of the screening hopper and the water tank, in the rotating process of the screening hopper, all fries in the water tank can be screened and discharged, so that the efficiency and quality of screening the fries are effectively improved, the workload of workers is reduced in the whole process, and the effects of saving time and labor are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fish fry screening, in particular to a fish fry screening device for aquaculture. Background Art

[0002] Fish fry, also known as "fish flowers," are newly hatched young fish, typically 6 to 9 mm in length. There are artificially bred fish fry and naturally caught fish from rivers and streams. When raising fish fry, they are usually sorted by size and then reared separately to prevent larger fish from cannibalizing smaller ones, potentially killing them.

[0003] Traditional fish fry screening technology, especially in some small farms, mostly relies on manual screening of fish fry using net bags, which is time-consuming and labor-intensive, and the screening effect is poor. When the net bag is raised to the surface of the water, a large number of fish fry pile up together, which can easily lead to incomplete screening.

[0004] In order to solve the above problems, we propose a fry screening device for aquaculture to solve the above problems. Summary of the Invention

[0005] In order to solve the problems in the background technology, the present invention provides a fish fry screening device for aquaculture, which nets all the fish fry by putting the fish fry into the water tank and then drives the screening bucket to rotate by a motor, thereby realizing the netting of all the fish fry and then screening and discharging. The whole process reduces the workload of the staff and saves time and effort. In addition, the present invention specially designs the structure of the screening bucket and the water tank, and can effectively enhance the efficiency and quality of the fish fry screening during the process of screening. The main operation process is that the screening bucket nets all the fish fry during the rotation process, and when the screening bucket moves out of the water surface, the water flow inside the screening bucket flows out from the leakage hole, so that the water level inside the screening bucket drops, thereby prompting the fish fry to approach the filter net for filtering and screening. The whole process can enhance the efficiency and quality of the fish fry screening, and finally open the sealing door to allow the small fish fry to fall into the fish fry collection frame through the discharge chute along with the water flow, thereby completing the screening work.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A fry screening device for aquaculture comprises a screening box, a water tank is provided in the middle of the inner side of the screening box, and a screening assembly is provided in the middle of the upper end of the water tank; the screening assembly comprises a screening bucket, the screening bucket is movably mounted in the middle of the upper end of the screening box and is driven by a motor to rotate, a filter screen is provided in the middle of the inner side of the screening bucket, a funnel-shaped fry filter box is provided at the inner bottom of the screening bucket, the fry filter box is located in the middle of the bottom end of the filter screen, and a discharge chute is provided at the right end of the fry filter box; The collecting component includes a storage trough, and a fry collection frame is placed in the middle of the upper end of the storage trough. The fry collection frame is mainly used to collect the fry that have been screened and discharged. During use, the staff can place or take the fry collection frame on the storage trough. A driving component is provided at the bottom of the storage trough, and the driving component is used to drive the fry collection frame to slide horizontally.

[0007] Preferably, a sealing door is provided in the middle of the right end of the fry filtering box, and the sealing door is located in the middle of the left end of the discharge trough. The right end of the sealing door is movably connected with two groups of hydraulic rods, and the two groups of hydraulic rods are movably installed at the bottom of the right end of the screening bucket. The two groups of hydraulic rods are used to drive the sealing door to perform opening and closing movements.

[0008] Preferably, the driving assembly includes an electric push rod, which is located in the middle of the bottom end of the storage trough. The output end of the electric push rod is equipped with a connecting block, which is fixedly installed on the left side of the bottom end of the storage trough. The function of the connecting block is to connect the electric push rod and the storage trough. Under the push of the electric push rod, the connecting block drives the storage trough to slide in the horizontal direction, thereby realizing the horizontal displacement adjustment of the position of the storage trough. The electric push rod is used to push the storage trough, which drives the fry collection frame to move to the bottom position of the screening bucket. The electric push rod is used to pull back the storage trough, which drives the fry collection frame to move outside the screening box to avoid blocking the rotational movement of the screening bucket.

[0009] Preferably, the driving assembly further comprises two sets of limiting guide rails, which are respectively located on both sides of the bottom end of the storage slot. The storage slot and the limiting guide rails are movably connected via multiple sets of sliding blocks, which are fixedly mounted on the bottom of the storage slot.

[0010] Preferably, support frames are provided on both sides of the upper end of the screening box, the head ends of the support frames extend out of the screening box, and the two groups of the limiting guide rails are respectively fixedly mounted on both sides of the upper end of the support frames.

[0011] Preferably, multiple groups of circular drainage holes are provided on the upper sides of both ends of the fry filter box, and the multiple groups of drainage holes are distributed in a rectangular array, so that the water flow in the inner cavity of the screening bucket can be discharged to avoid a large amount of water accumulation in the screening bucket.

[0012] Preferably, a guide trough is provided on the upper right side of the screening bucket, which is mainly used to assist in guiding the large fry.

[0013] Preferably, a rotating shaft is provided in the middle part of the inner side of the screening bucket, and the screening bucket is movably mounted on the middle part of the upper end of the screening box through the rotating shaft. One end of the rotating shaft is transmission-connected to a motor, and the motor is fixedly mounted on the outer wall of the screening box. Driven by the motor, the screening bucket can be driven to rotate under the rotation of the rotating shaft, wherein the motor needs to be a motor with a self-locking function.

[0014] Preferably, a water inlet pipe is provided on the upper left side of the screening box, which is mainly used for adding water into the water tank.

[0015] Preferably, the water tank is configured as a semicircular structure, and the outer wall of the screening bucket is in contact with the inner wall of the water tank, so that the screening bucket can net all the fry in the water tank during the rotation process, so that the screening bucket can screen all the fry at one time, thereby effectively enhancing the efficiency and quality of screening the fry.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention puts the fry into the water tank and then drives the screening bucket to rotate by a motor, thereby achieving the goal of catching all the fry and then screening and discharging the fry. The whole process reduces the workload of the staff and plays a role in saving time and labor. In addition, the structural arrangement of the screening bucket and the water tank in the present invention can enhance the efficiency and quality of screening fry. Its main operating process is that the screening bucket will net all the fry during the rotation process, and when the screening bucket moves out of the water surface, the water flow inside the screening bucket will flow out from the leakage hole, so that the water level inside the screening bucket will drop, thereby prompting the fry to approach the filter net for filtering and screening. The whole process can enhance the efficiency and quality of screening fry. Finally, the sealing door is opened to allow the small fry to fall into the fry collection frame through the discharge chute along with the water flow, thereby completing the screening work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a side sectional structural diagram of the present invention; Figure 3 This is a schematic structural diagram of the screening bucket in the present invention when it is in the discharging state; Figure 4 Schematic diagram of the structure of the drive assembly in the present invention; Figure 5 An exploded view of the drive assembly of the present invention; Figure 6 It is a structural schematic diagram of the screening bucket in the present invention; Figure 7 It is a side structural schematic diagram of the screening bucket in the present invention.

[0018] In the figure: 1. Screening box; 2. Water tank; 3. Screening bucket; 4. Rotating shaft; 5. Motor; 6. Filter screen; 7. Fry filter box; 8. Leakage hole; 9. Discharge chute; 10. Sealing door; 11. Hydraulic rod; 12. Water inlet pipe; 13. Feed chute; 14. Support frame; 15. Limiting guide rail; 16. Storage trough; 17. Fry collection frame; 18. Sliding block; 19. Electric push rod; 20. Connecting block. DETAILED DESCRIPTION

[0019] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology. The overall idea is as follows: the special structural setting of the screening bucket 3 and the water tank 2 in the present invention enables the screening bucket 3 to net all the fry in the water tank 2 and then screen out the material during the rotation process, thereby effectively enhancing the efficiency and quality of screening the fry, and the whole process reduces the workload of the staff. Compared with the traditional manual screening method, the device of the present invention saves time and effort in the work of screening the fry.

[0020] Example: Refer to Figure 1-Figure 7 As shown, a fry screening device for aquaculture of this embodiment includes a screening box 1, a water tank 2 is provided in the middle of the inner side of the screening box 1, and a screening assembly is provided in the middle of the upper end of the water tank 2; the screening assembly includes a screening bucket 3, which is movably mounted in the middle of the upper end of the screening box 1 and driven by a motor 5 to rotate, a filter screen 6 is provided in the middle of the inner side of the screening bucket 3, and a funnel-shaped fry filter box 7 is provided at the inner bottom of the screening bucket 3. The fry filter box 7 is located in the middle of the bottom end of the filter screen 6, and a discharge chute 9 is provided at the right end of the fry filter box 7; The collecting component includes a storage trough 16, a fry collecting frame 17 is placed in the middle of the upper end of the storage trough 16, and a driving component is provided at the bottom of the storage trough 16, which drives the fry collecting frame 17 to slide horizontally.

[0021] A sealing door 10 is provided at the middle part of the right end of the fry filter box 7. The sealing door 10 is located at the middle part of the left end of the discharge chute 9. The right end of the sealing door 10 is movably connected with two groups of hydraulic rods 11. The two groups of hydraulic rods 11 are movably installed at the bottom of the right end of the screening bucket 3. The two groups of hydraulic rods 11 are used to drive the sealing door 10 to open and close. When the screening bucket 3 rotates to an inclined state and the discharge chute 9 is lower than the horizontal level, the sealing door 10 is opened at this time, and the small fry in the fry filter box 7 will be discharged through the discharge chute 9 with the water flow. Conversely, closing the sealing door 10 can intercept the water source in the fry filter box 7, so that the water flow remains in the fry filter box 7, providing lubrication for the discharge of the small fry.

[0022] The drive assembly includes an electric push rod 19, which is located in the middle of the bottom end of the storage slot 16. A connecting block 20 is installed at the output end of the electric push rod 19, and the connecting block 20 is fixedly installed on the left side of the bottom end of the storage slot 16. The drive assembly also includes two sets of limiting guide rails 15, which are respectively located on both sides of the bottom end of the storage slot 16. The storage slot 16 and the limiting guide rails 15 are movably connected through multiple sets of sliding blocks 18. The sliding blocks 18 are fixedly installed at the bottom of the storage slot 16. The sliding blocks 18 are slidably connected to the limiting guide rails 15, which play a sliding role and drive the storage slot 16 to slide horizontally.

[0023] Among them, the electric push rod 19 is used to push the storage trough 16 to drive the fry collection frame 17 to slide horizontally on the limiting guide rail 15, so that the fry collection frame 17 is pushed to the bottom of the screening bucket 3 to receive the fry. After the fry receiving work is completed, the electric push rod 19 is used to pull back to make the fry collection frame 17 slide to the outside of the water tank 2, avoiding blockage of the rotation of the screening bucket 3. At the same time, it is also convenient for the staff to take out and replace the fry collection frame 17.

[0024] In some examples, support frames 14 are provided on both sides of the upper end of the screening box 1, and the head ends of the support frames 14 extend out of the screening box 1. Two sets of limiting guide rails 15 are respectively fixedly installed on both sides of the upper end of the support frame 14. The support frames 14 mainly play a role in stabilizing the supporting of the limiting guide rails 15.

[0025] In some examples, multiple groups of circular drainage holes 8 are provided on the upper sides of both ends of the fry filter box 7, and the multiple groups of drainage holes 8 are distributed in a rectangular array. The drainage holes 8 are mainly used to guide the water in the fry filter box 7 to flow out, so as to avoid a large amount of water remaining in the screening bucket 3, thereby increasing gravity. At the same time, when the screening bucket 3 is rising, the water will flow out through the drainage holes 8, so that the water level in the screening bucket 3 gradually decreases. As the water level slowly drops, the fry on the filter screen 6 will follow the drop and then be filtered through the filter screen 6, further providing assistance for the filtering and screening of the fry. Moreover, by retaining a certain amount of water in the screening bucket 3, it plays a lubricating role when discharging the small fry, thereby enhancing the smoothness of the discharge of the small fry.

[0026] In some examples, a material guide trough 13 is provided on the upper right side of the screening hopper 3. The material guide trough 13 is mainly used to guide the large fish fry at the upper end of the filter screen 6, and plays a buffering role to avoid a large drop between the screening hopper 3 and the water tank 2, which may cause the large fish fry to be injured during the falling process. The specific process is that when the screening hopper 3 gradually tilts during the rotation, the large fish fry on the filter screen 6 will converge to the right end of the screening hopper 3. As the inclination of the screening hopper 3 becomes higher and higher, the large fish fry will slide into the material guide trough 13, be buffered by the material guide trough 13, and then fall into the water tank 2 below, playing a buffering and protective role.

[0027] In some examples, a rotating shaft 4 is provided in the inner middle part of the screening bucket 3, and the screening bucket 3 is movably installed in the upper middle part of the screening box 1 through the rotating shaft 4. One end of the rotating shaft 4 is transmission-connected to a motor 5, and the motor 5 is fixedly installed on the outer wall of the screening box 1. The motor 5 drives the rotating shaft 4 to rotate, thereby driving the screening bucket 3 to rotate with the rotating shaft 4 as the center point, thereby realizing the work of netting up and screening the fry in the water tank 2.

[0028] In some examples, a water inlet pipe 12 is provided on the upper left side of the screening box 1 , which is mainly used to fill water into the water tank 2 .

[0029] In some examples, the water tank 2 is configured as a semicircular structure, and the outer wall of the screening bucket 3 is in contact with the inner wall of the water tank 2, so that when the screening bucket 3 rotates in the water tank 2, all the fry in the water tank 2 can be netted up to prevent any fry from being left in the water tank 2 and escaping the screening workflow.

[0030] In some examples, the filter screen 6 is installed and fixed by screws. During use, the staff can select an appropriate filter screen 6 according to needs, so that fish fry of different sizes can be filtered and screened in turn, thereby effectively enhancing the wide application of the structure of the present invention.

[0031] In some examples, when the device of the present invention is in use, the screening bucket 3 needs to rotate evenly and slowly to avoid excessive rotation, which may cause frightening to the fry. At the same time, it also prevents the screening bucket 3 from rotating too quickly, which may cause water leakage to overflow in time.

[0032] The working principle of the present invention is: During use, the staff first puts all the fry to be screened into the water tank 2, and then starts the motor 5 to drive the screening bucket 3 to rotate. The screening bucket 3 will descend from the right port of the water tank 2 into the interior of the water tank 2. As the screening bucket 3 rotates to the left, all the fry in the water tank 2 are netted into the screening bucket 3. After the fry enter the screening bucket 3, they will rotate with the screening bucket 3. Under the action of inertia, the fry will fall onto the filter screen 6 one after another, and the small fry will pass through the filter screen 6 and enter the fry filter box 7, while the large fry will be filtered out by the filter screen 6 and remain on the upper end surface of the filter screen 6.

[0033] When the screening bucket 3 is separated from the water tank 2 and rotated to a horizontal state, the water in the screening bucket 3 will overflow through the leaking hole 8, causing the water level inside the screening bucket 3 to drop. In this process, the fry on the upper end of the filter screen 6 will follow the water level drop and begin to approach the filter screen 6, thereby filtering the fry again. At this time, the small fry will drop through the filter screen 6. When the screening bucket 3 rotates to Figure 3 In the tilted state.

[0034] At this time, the driving component is started and driven by the electric push rod 19, so that the storage trough 16 drives the fry collection frame 17 to slide on the two sets of limit guide rails 15 until the fry collection frame 17 moves to the bottom position of the screening bucket 3 and stops, and then the hydraulic rod 11 at the bottom right end of the screening bucket 3 is started, and the hydraulic rod 11 is pulled to open the sealing door 10. As the sealing door 10 opens, the small fry inside the fry filter box 7 will begin to flow out through the discharge trough 9 with the flow of water, and fall into the fry collection frame 17.

[0035] As the screening bucket 3 continues to rotate and tilt, all the small fry inside the fry filter box 7 are dumped into the fry collection frame 17. At this time, the electric push rod 19 retracts to drive the fry collection frame 17 to evacuate from the bottom of the screening bucket 3 and return to its initial position. The screening bucket 3 continues to rotate under the drive of the motor 5. As the screening bucket 3 tilts until it is perpendicular to the surface of the water tank 2, the large fry located on the upper surface of the filter screen 6 fall back into the water tank 2 along the guide trough 13. As the screening bucket 3 enters the water tank 2 again, the previous operation is continued, thereby realizing a second screening of the fry. After multiple consecutive screenings, the fry screening work can be completed.

[0036] In addition, the staff can replace the filter screen 6 in the screening bucket 3, and then filter and screen the remaining fry again, so as to screen the fry step by step, thereby effectively enhancing the efficiency and quality of screening the fry. During the entire screening process, the staff only needs to put the fry to be screened into the water tank 2, and then wait for the fry collection frame 17 to be taken, which greatly reduces the workload of the staff and saves time and effort.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fry screening device for aquaculture, characterized in that: It comprises a screening box (1), a water tank (2) is provided in the middle of the inner side of the screening box (1), and a screening assembly is provided in the middle of the upper end of the water tank (2); The screening component comprises a screening hopper (3), the screening hopper (3) being movably mounted in the middle of the upper end of the screening box (1) and being driven by a motor (5) to rotate, a filter screen (6) being provided in the middle of the inner side of the screening hopper (3), a funnel-shaped fry filter box (7) being provided at the inner bottom of the screening hopper (3), the fry filter box (7) being located in the middle of the bottom end of the filter screen (6), and a discharge trough (9) being provided at the right end of the fry filter box (7); A collecting assembly comprises a storage trough (16), a fry collecting frame (17) is placed in the middle of the upper end of the storage trough (16), and a driving assembly is provided at the bottom of the storage trough (16), and the driving assembly acts to drive the fry collecting frame (17) to slide horizontally.

2. The fry screening device for aquaculture according to claim 1, characterized in that: A sealing door (10) is provided at the middle of the right end of the fry filtering box (7), and the sealing door (10) is located at the middle of the left end of the discharge chute (9). The right end of the sealing door (10) is movably connected to two groups of hydraulic rods (11), and the two groups of hydraulic rods (11) are movably installed at the bottom of the right end of the screening bucket (3). The two groups of hydraulic rods (11) are used to drive the sealing door (10) to open and close.

3. The fry screening device for aquaculture according to claim 2, characterized in that: The driving assembly comprises an electric push rod (19), the electric push rod (19) being located in the middle of the bottom end of the storage slot (16), and a connecting block (20) being installed at the output end of the electric push rod (19), the connecting block (20) being fixedly installed on the left side of the bottom end of the storage slot (16).

4. The fry screening device for aquaculture according to claim 3, characterized in that: The driving assembly further comprises two sets of position-limiting guide rails (15), the two sets of position-limiting guide rails (15) being respectively located on both sides of the bottom end of the storage slot (16), the storage slot (16) and the position-limiting guide rails (15) being movably connected via a plurality of sets of sliding blocks (18), and the sliding blocks (18) being fixedly mounted on the bottom of the storage slot (16).

5. The fry screening device for aquaculture according to claim 4, characterized in that: Support frames (14) are provided on both sides of the upper end of the screening box (1), and the head ends of the support frames (14) extend out of the screening box (1). The two sets of limiting guide rails (15) are respectively fixedly mounted on both sides of the upper end of the support frames (14).

6. The fry screening device for aquaculture according to claim 5, characterized in that: Multiple groups of circular water leakage holes (8) are provided on the upper sides of both ends of the fry filter box (7), and the multiple groups of water leakage holes (8) are distributed in a rectangular array.

7. The fry screening device for aquaculture according to claim 6, characterized in that: A material guide trough (13) is provided on the upper right side of the screening bucket (3).

8. The fry screening device for aquaculture according to claim 7, characterized in that: A rotating shaft (4) is provided in the middle of the inner side of the screening bucket (3), and the screening bucket (3) is movably mounted on the middle of the upper end of the screening box (1) via the rotating shaft (4). One end of the rotating shaft (4) is transmission-connected to a motor (5), and the motor (5) is fixedly mounted on the outer wall of the screening box (1).

9. The fry screening device for aquaculture according to claim 8, characterized in that: A water inlet pipe (12) is provided on the upper left side of the screening box (1).

10. The fry screening device for aquaculture according to claim 9, characterized in that: The water tank (2) is configured as a semicircular structure, and the outer wall of the screening hopper (3) is in contact with the inner wall of the water tank (2).

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