A fish fry screening device for aquaculture

Abstract

The application provides a fish fry screening device for aquaculture, and relates to the technical field of fish fry screening, which comprises a screening box, a water tank is arranged at the middle part of the inner side of the screening box, and a screening assembly is arranged at the middle part of the upper end of the water tank; the screening assembly comprises a screening hopper, the screening hopper is movably arranged at the middle part of the upper end of the screening box and rotates by being driven by a motor, a filter screen is arranged at the middle part of the inner side of the screening hopper, a funnel-shaped fry filtering tank is arranged at the bottom of the inner side of the screening hopper, the fry filtering tank is arranged at the middle part of the bottom end of the filter screen, and a discharge chute is arranged at the right end of the fry filtering tank; the collecting assembly comprises a storage chute. In the application, the structure of the screening hopper and the water tank is arranged so that all the fry in the water tank can be screened and discharged after being lifted by the screen during the rotation of the screening hopper, thereby effectively improving the efficiency and quality of the screening of the fry, and the workload of the staff is reduced during the whole process, thereby saving time and effort.

Description

Technical Field

[0001] This invention relates to the field of fish fry screening technology, specifically to a fish fry screening device for aquaculture. Background Technology

[0002] Fish fry, also called "fish fry," are newly hatched juvenile fish, typically 6-9 millimeters in length. There are artificially bred fry and naturally occurring fry from rivers. When raising fish fry artificially, it's usually necessary to separate fry of different sizes for further rearing. This prevents larger fry from eating smaller ones and causing them to die.

[0003] Traditional fish fry selection techniques, especially in small-scale fish farms, mostly rely on manual selection using nets. This is time-consuming and labor-intensive, and the selection effect is not good. When the net is lifted out of the water, a large number of fish fry are piled up together, which easily leads to incomplete selection.

[0004] To address the aforementioned problems, we propose a fish fry screening device for aquaculture. Summary of the Invention

[0005] To address the problems in the background technology, this invention provides a fish fry screening device for aquaculture. Fish fry are placed in a water tank, and a motor drives a screening bucket to rotate, thus catching all the fry. The process then involves screening and discharging the fry, reducing the workload of staff and saving time and effort. Furthermore, the invention features a specially designed structure for the screening bucket and water tank, effectively enhancing the efficiency and quality of fry screening. The main operating procedure is as follows: as the screening bucket rotates, it catches all the fry. When the bucket moves out of the water, water flows out through the drain hole, lowering the water level and causing the fry to approach the filter screen for filtration. This process enhances the efficiency and quality of fry screening. Finally, the sealed door opens, allowing the fry to fall into the fry collection frame through the discharge trough, completing the screening process.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A fish fry screening device for aquaculture includes a screening box, a water tank located in the middle of the inner side of the screening box, and a screening component located in the middle of the upper end of the water tank. The screening component includes a screening hopper, which is movably installed in the middle of the upper end of the screening box and rotated by a motor. A filter screen is located in the middle of the inner side of the screening hopper, and a funnel-shaped fish fry filter box is located at the bottom of the inner side of the screening hopper. The fish fry filter box is located in the middle of the bottom end of the filter screen, and a discharge trough is located at the right end of the fish fry filter box.

[0008] The collection component includes a storage trough, on the upper middle part of which a fish fry collection frame is placed. The fish fry collection frame is mainly used to collect fish fry that have been screened and discharged. During use, the staff can place or remove the fish fry collection frame on the storage trough. A driving component is provided at the bottom of the storage trough, which drives the fish fry collection frame to slide horizontally.

[0009] Preferably, a sealing door is provided at the middle of the right end of the fish fry filter box. The sealing door is located at the middle of the left end of the discharge trough. Two sets of hydraulic rods are movably connected to the right end of the sealing door. Both sets of hydraulic rods are movably installed at the bottom of the right end of the screening hopper. The two sets of hydraulic rods are used to drive the sealing door to open and close.

[0010] Preferably, the driving component includes an electric push rod located at the bottom center of the storage trough. A connecting block is installed at the output end of the electric push rod, and the connecting block is fixedly installed on the left side of the bottom of the storage trough. The connecting block connects the electric push rod to the storage trough. Driven by the electric push rod, the connecting block causes the storage trough to slide horizontally, thereby adjusting the horizontal displacement of the storage trough. Specifically, by pushing with the electric push rod, the storage trough moves the fish fry collection frame to the bottom of the screening hopper. By pulling back with the electric push rod, the storage trough moves the fish fry collection frame outward from the screening box, preventing obstruction of the rotational movement of the screening hopper.

[0011] Preferably, the driving component further includes two sets of limiting guide rails, which are located on both sides of the bottom end of the storage slot. The storage slot and the limiting guide rails are movably connected by multiple sets of sliding blocks, which are fixedly installed at the bottom of the storage slot.

[0012] Preferably, support frames are provided on both sides of the upper end of the screening box, with the head end of the support frame extending out of the screening box, and the two sets of limiting guide rails are respectively fixedly installed on both sides of the upper end of the support frame.

[0013] Preferably, multiple sets of circular drainage holes are provided on the upper sides of both ends of the fish fry filter box. The multiple sets of drainage holes are distributed in a rectangular array to discharge the water flow into the screening hopper and prevent a large amount of water from accumulating in the screening hopper.

[0014] Preferably, a guide trough is provided on the upper right side of the screening hopper, which is mainly used to assist in guiding large fish fry.

[0015] Preferably, a rotating shaft is provided in the middle of the inner side of the screening hopper, and the screening hopper is movably installed in the middle of the upper end of the screening box through the rotating shaft. One end of the rotating shaft is connected to a motor, and the motor is fixedly installed on the outer wall of the screening box. Driven by the motor, the screening hopper can be rotated by the rotation of the rotating shaft. The motor needs to be a motor with a self-locking function.

[0016] Preferably, a water inlet pipe is provided on the upper left side of the screening box, which is mainly used to add water to the water tank.

[0017] Preferably, the water tank is configured with a semi-circular structure, and the outer wall of the screening bucket is in close contact with the inner wall of the water tank, so that the screening bucket can catch all the fish fry in the water tank during rotation, allowing the screening bucket to screen all the fish fry at once, thereby effectively enhancing the efficiency and quality of fish fry screening.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention involves releasing fish fry into a water tank and then using a motor to drive a rotating screening bucket to net all the fish fry, followed by screening and discharge. This process reduces the workload of staff and saves time and effort.

[0020] Furthermore, the structure of the screening bucket and water tank in this invention can enhance the efficiency and quality of screening fish fry. The main operating procedure is as follows: during the rotation of the screening bucket, all the fish fry will be netted. When the screening bucket is moved out of the water, the water inside the screening bucket will flow out through the drainage hole, causing the water level inside the screening bucket to drop. This will encourage the fish fry to approach the filter screen for filtration and screening. The entire process can enhance the efficiency and quality of screening fish fry. Finally, the sealing door is opened, allowing the small fish fry to fall into the fish fry collection frame through the discharge trough with the water flow, thus completing the screening work. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a side sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the screening hopper in the discharge mode in this invention;

[0024] Figure 4 This is a schematic diagram of the driving component in this invention;

[0025] Figure 5 This is an exploded view of the driving component in this invention;

[0026] Figure 6 This is a schematic diagram of the screening bucket in this invention;

[0027] Figure 7 This is a side view of the screening bucket in this invention.

[0028] In the diagram: 1. Screening box; 2. Water tank; 3. Screening hopper; 4. Rotating shaft; 5. Motor; 6. Filter screen; 7. Fish fry filter box; 8. Drain hole; 9. Discharge trough; 10. Sealing door; 11. Hydraulic rod; 12. Water inlet pipe; 13. Feed guide trough; 14. Support frame; 15. Limiting guide rail; 16. Storage trough; 17. Fish fry collection frame; 18. Sliding block; 19. Electric push rod; 20. Connecting block. Detailed Implementation

[0029] The technical solution in this application embodiment is to solve the problems in the background technology mentioned above. The overall idea is as follows: The special structural design of the screening bucket 3 and the water tank 2 in this invention enables the screening bucket 3 to net and screen all the fish fry in the water tank 2 during the rotation process, thereby effectively enhancing the efficiency and quality of screening fish fry. In addition, the whole process reduces the workload of the staff. Compared with the traditional manual screening method, the device of this invention plays a role in saving time and effort in the screening of fish fry.

[0030] Example: Refer to Figures 1-7 As shown, a fish fry screening device for aquaculture in 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 component is provided in the middle of the upper end of the water tank 2; the screening component includes a screening bucket 3, which is movably installed in the middle of the upper end of the screening box 1 and is driven to rotate by a motor 5; a filter screen 6 is provided in the middle of the inner side of the screening bucket 3, and a funnel-shaped fish fry filter box 7 is provided at the bottom of the inner side of the screening bucket 3; the fish fry filter box 7 is located in the middle of the bottom end of the filter screen 6, and a discharge trough 9 is provided at the right end of the fish fry filter box 7;

[0031] The collection component includes a storage trough 16, a fish fry collection frame 17 is placed in the upper middle part of the storage trough 16, and a drive component is provided at the bottom of the storage trough 16. The drive component is used to drive the fish fry collection frame 17 to slide horizontally.

[0032] A sealing door 10 is provided at the middle of the right end of the fish fry filter box 7. The sealing door 10 is located at the middle of the left end of the discharge trough 9. Two sets of hydraulic rods 11 are movably connected to the right end of the sealing door 10. Both sets of hydraulic rods 11 are movably installed at the bottom right end of the screening hopper 3. The two sets of hydraulic rods 11 are used to drive the sealing door 10 to open and close. When the screening hopper 3 is rotated to an inclined state and the discharge trough 9 is lower than the horizontal level, the sealing door 10 is opened, and the small fish fry in the fish fry filter box 7 will be discharged through the discharge trough 9 with the water flow. Conversely, closing the sealing door 10 can intercept the water source in the fish fry filter box 7, so that the water flow remains in the fish fry filter box 7, providing a lubricating effect for the discharge of small fish fry.

[0033] The drive assembly includes an electric push rod 19, which is located at the bottom center of the storage slot 16. A connecting block 20 is installed at the output end of the electric push rod 19. The connecting block 20 is fixedly installed on the left side of the bottom of the storage slot 16. The drive assembly also includes two sets of limiting guide rails 15, which are located on both sides of the bottom of the storage slot 16. The storage slot 16 and the limiting guide rails 15 are movably connected by multiple sets of sliding blocks 18. The sliding blocks 18 are fixedly installed at the bottom of the storage slot 16 and are slidably connected to the limiting guide rails 15 to slide, thereby driving the storage slot 16 to slide horizontally.

[0034] The electric push rod 19 pushes the fry collection box 17, causing the storage trough 16 to slide horizontally on the limiting guide rail 15. This pushes the fry collection box 17 to the bottom of the screening hopper 3 to collect the fry. After collecting the fry, the electric push rod 19 pulls it back, causing the fry collection box 17 to slide to the outside of the water tank 2. This prevents the fry collection box 3 from being blocked from rotating, and also makes it easier for staff to take out and replace the fry collection box 17.

[0035] In some examples, support frames 14 are provided on both sides of the upper end of the screening box 1. The head end of the support frame 14 extends out of the screening box 1. Two sets of limiting guide rails 15 are fixedly installed on both sides of the upper end of the support frame 14. The support frame 14 mainly plays a role in stabilizing the limiting guide rails 15.

[0036] In some examples, multiple sets of circular drainage holes 8 are provided on the upper sides of both ends of the fish fry filter box 7. The multiple sets of drainage holes 8 are distributed in a rectangular array. The drainage holes 8 are mainly used to guide the water in the fish fry filter box 7 out, so as to avoid a large amount of water remaining in the screening hopper 3 and increasing the gravity. At the same time, as the screening hopper 3 rises, the water will flow out through the drainage holes 8, so that the water level in the screening hopper 3 gradually decreases. As the water level slowly drops, the fish fry on the filter screen 6 will follow and then be filtered through the filter screen 6, which further assists in the filtration and screening of the fish fry. Moreover, by retaining a certain amount of water in the screening hopper 3, it plays a lubricating role when discharging the small fish fry, enhancing the smoothness of the discharging of the small fish fry.

[0037] In some examples, a feed guide trough 13 is provided on the upper right side of the screening bucket 3. The feed guide trough 13 mainly guides the large fish fry on the upper part of the filter screen 6, and plays a buffering role to avoid the large drop between the screening bucket 3 and the water tank 2, which could cause the large fish fry to be injured during the fall. The specific process is as follows: when the screening bucket 3 gradually tilts during rotation, the large fish fry on the filter screen 6 will converge towards the right end of the screening bucket 3. As the tilt of the screening bucket 3 increases, the large fish fry will slide into the feed guide trough 13, be buffered by the feed guide trough 13, and then fall into the water tank 2 below, playing a buffering and protective role.

[0038] In some examples, a rotating shaft 4 is provided in the middle of the inner side of the screening bucket 3. The screening bucket 3 is movably installed in the middle of the upper end of the screening box 1 through the rotating shaft 4. One end of the rotating shaft 4 is connected to a motor 5. 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 around the rotating shaft 4 as the center point, so as to realize the netting and screening of fish fry in the water tank 2.

[0039] 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 inject water into the water tank 2.

[0040] In some examples, the water tank 2 is designed as a semi-circular structure, and the outer wall of the screening bucket 3 is in close contact with the inner wall of the water tank 2. This allows the screening bucket 3 to be used to net all the fish fry in the water tank 2 when it rotates, preventing any fish fry from being left in the water tank 2 and thus avoiding the screening process.

[0041] In some examples, the filter screen 6 is installed and fixed by screws. During use, the staff can select the appropriate filter screen 6 as needed, so that fish fry of different sizes can be filtered and screened in turn, thereby effectively enhancing the versatility of the application of the structure of the present invention.

[0042] 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 amplitude, which would frighten the fish fry. At the same time, it also prevents the screening bucket 3 from rotating too fast, which would cause water to overflow in time.

[0043] The working principle of this invention is:

[0044] During use, the staff first put all the fish fry to be screened into the water tank 2, and then start 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 and enter the interior of the water tank 2. As the screening bucket 3 rotates to the left, it will scoop all the fish fry in the water tank 2 into the screening bucket 3. After the fish fry enter the screening bucket 3, they will rotate with the screening bucket 3. Under the action of inertia, the fish fry will fall onto the filter screen 6. The smaller fish fry will pass through the filter screen 6 and enter the fish fry filter box 7, while the larger fish fry will be filtered out by the filter screen 6 and remain on the upper surface of the filter screen 6.

[0045] When the sieve 3 detaches from the water tank 2 and rotates to a horizontal position, the water inside the sieve 3 overflows through the drain hole 8, causing the water level inside the sieve 3 to drop. During this process, the fish fry at the top of the filter screen 6 will follow the drop in water level and begin to approach the filter screen 6, achieving a second filtration of the fish fry. At this time, the small fish fry will descend through the filter screen 6. When the sieve 3 rotates to... Figure 3 In the middle, when it is in a tilted state.

[0046] At this time, the drive component is activated, and the electric push rod 19 drives the storage trough 16 to slide the fry collection frame 17 on the two sets of limit guide rails 15 until the fry collection frame 17 moves to the bottom position of the screening hopper 3 and stops. Then, the hydraulic rod 11 at the bottom right end of the screening hopper 3 is activated, and the sealing door 10 is opened by pulling the hydraulic rod 11. As the sealing door 10 is opened, the small fry inside the fry filter box 7 will flow out through the discharge trough 9 with the water flow and fall into the fry collection frame 17.

[0047] As the screening bucket 3 continues to rotate and tilt, all the small fry inside the fry filter box 7 are poured into the fry collection frame 17. At this time, the electric push rod 19 retracts, causing the fry collection frame 17 to be removed from the bottom of the screening bucket 3 and returned 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 feed guide chute 13. As the screening bucket 3 enters the water tank 2 again, the previous operation continues, thereby realizing the second screening of the fry. After several screenings, the fry screening work can be completed.

[0048] Furthermore, staff can replace the filter screen 6 in the screening bucket 3 and then filter and screen the remaining fry again, thereby achieving step-by-step screening of the fry and effectively enhancing the efficiency and quality of fry screening. During the entire screening process, staff only need to put the fry to be screened into the water tank 2 and then wait to retrieve the fry collection box 17, which greatly reduces the workload of staff and achieves the effect of saving time and effort.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A fry screening device for aquaculture, characterized by, Including screening box (1), the inside middle part of screening box (1) is provided with water tank (2), and the upper end middle part of water tank (2) is provided with screening assembly; Screening assembly includes screening hopper (3), the upper end middle part of screening hopper (3) is movably installed in screening box (1), and is driven to rotate by motor (5), the inside middle part of screening hopper (3) is provided with filter screen (6), the inside bottom of screening hopper (3) is provided with funnel-shaped fry filter box (7), and the bottom end middle part of filter screen (6) is located fry filter box (7), and the right end of fry filter box (7) is provided with discharge chute (9); Collecting assembly includes storage slot (16), the upper end middle part of storage slot (16) is placed with fry collecting frame (17), and the bottom of storage slot (16) is provided with drive assembly, and the drive assembly acts on the drive fry collecting frame (17) to slide in horizontal direction.

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

3. The larva screening device for aquaculture according to claim 2, characterized by The drive assembly includes electric push rod (19), the output end of electric push rod (19) is installed with connecting block (20), and the bottom end left side of storage slot (16) is fixedly installed with connecting block (20).

4. The larva screening device for aquaculture according to claim 3, characterized by The drive assembly further includes two groups of limit guide rails (15), and the bottom of storage slot (16) is movably connected with limit guide rails (15) through a plurality of sliding blocks (18), and the sliding block (18) is fixedly installed on the bottom of storage slot (16).

5. The larval fish screening device for aquaculture according to claim 4, characterized by The upper end of both sides of screening box (1) is provided with support frame (14), the head end of support frame (14) extends out of screening box (1), and two groups of limit guide rails (15) are fixedly installed on the upper end of both sides of support frame (14).

6. The larva screening device for aquaculture according to claim 5, characterized by The upper side of both ends of fry filter box (7) is provided with a plurality of circular water leakage holes (8), and a plurality of water leakage holes (8) are distributed in a rectangular array.

7. The larval fish screening device for aquaculture according to claim 6, characterized by The right end upper side of screening hopper (3) is provided with guide chute (13).

8. The larva screening device for aquaculture according to claim 7, characterized by The inside middle part of screening hopper (3) is provided with rotating shaft (4), the rotating shaft (4) is movably installed in the upper end middle part of screening box (1), one end of rotating shaft (4) is drivingly connected with motor (5), and the motor (5) is fixedly installed on the outer wall of screening box (1).

9. The larval fish screening device for aquaculture according to claim 8, characterized by The left end upper side of screening box (1) is provided with water inlet pipe (12).

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

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