Automatic fish fry grading device

Abstract

This utility model relates to the field of aquaculture technology, specifically an automatic fish fry grading device, comprising: a screening tank body mounted on a base, wherein the screening tank body is provided with an upper driving mechanism and three mounting frame bodies; a storage box body having an opening slot and a storage box drainage slot; and a fish fry outlet on the side of the mounting frame body. The beneficial effects are: by cooperating with the lower and upper driving mechanisms to rotate and drive the fish school, the screened fish fry swim into the fish fry storage box mounted on the storage box body through the fish fry outlet, side opening, and opening slot, and personnel can then remove the fish fry storage box to obtain the screened fish fry. The operation is simple; personnel can remove individual fish fry storage boxes separately. The fish fry storage boxes are lighter, reducing the burden on personnel and facilitating removal and practical use. After the primary and secondary screening plates screen the fish fry, the inner baffle prevents the fish below from swimming upwards, improving the screening effect.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to an automatic fish fry grading device. Background Technology

[0002] Fish fry refer to the stage from when fish eggs hatch until they develop into juvenile fish, and their body length is usually between a few millimeters and a few centimeters.

[0003] In the prior art, the China Patent Network discloses a fish fry grading and screening device (publication announcement number CN222692552U), which includes a supporting base and a screening tank installed on the upper end of the supporting base. A circulation pump assembly is conductively connected to one side of the screening tank, and a grading and screening component is placed inside the tank. When screening fish fry, this invention utilizes the circulation pump assembly to circulate the water within the screening tank, creating a dynamic flow pattern that facilitates the dispersion of fish fry. Simultaneously, the circulated water is pumped back into the screening tank, accelerating water flow efficiency and increasing oxygen content. The grading and screening component is then slowly extracted, and its three sets of screening frames with different aperture sizes perform a layer-by-layer screening process on the active fish fry. This method is more efficient and safer, while also being simpler and more convenient to operate.

[0004] However, after the device screens the fish fry, the staff needs to disassemble the entire assembly consisting of the first screening frame, the second screening frame, and the third screening frame before they can take out the fish fry. The assembly is heavy and puts a heavy burden on the staff, making it inconvenient for practical use. Therefore, this utility model proposes an automatic fish fry grading device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic fish fry grading device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic fish fry grading device, comprising: a base, on which a screening tank body is mounted, the screening tank body having several side openings and a screening tank water inlet groove, the screening tank body having an upper driving mechanism and three mounting frame bodies, the three mounting frame bodies having a first-level screening plate, a second-level screening plate and a third-level screening plate arranged sequentially from top to bottom, the third-level screening plate having a connecting shaft connected to an inner baffle, the bottom surface of the inner baffle having a waterproof servo motor, the waterproof servo motor drive shaft being connected to the lower driving mechanism;

[0007] The storage box body has an opening groove and a storage box drainage groove. The storage box body is equipped with a fish fry storage box. The side of the fish fry storage box has several drainage holes.

[0008] The main body of the mounting frame has a fish fry outlet on its side.

[0009] Preferably, the shaft on the upper driving mechanism is fixedly connected to the transmission shaft of the upper servo motor, the upper servo motor is fixedly installed on the main body of the screening tank, a waterproof electric push rod is fixedly installed on the inner side of the screening tank, the telescopic end of the waterproof electric push rod is fixedly connected to the upper surface of the side baffle, the side baffle has an arc-shaped plate structure, the side baffle can be inserted into the fish fry outlet, and the side baffle can slide up and down along the fish fry outlet.

[0010] Preferably, the primary screening plate has several water outlet holes, the lower surface of the primary screening plate is in contact with the upper surface of the inner baffle plate, the primary screening plate is fixedly installed on the mounting frame body, and the mounting frame body is fixedly installed inside the screening tank body.

[0011] Preferably, a screening tank body is fixedly installed on the base, a liquid level sensor body is fixedly installed inside the screening tank body, a storage box body is fixedly connected to the side of the screening tank body, an opening groove is opened on the inner side of the storage box body, the opening groove has an arc-shaped groove structure, the opening groove corresponds to and is flush with the side opening opened on the screening tank body, the side opening has an arc-shaped groove structure, the side opening is flush with the fish fry outlet opened on the mounting frame body, a fish fry storage box is placed inside the mounting frame body, and a number of drainage holes are opened on the inner side of the fish fry storage box, the drainage holes have a circular groove structure.

[0012] Preferably, the connecting shaft has a cylindrical structure, with two inner baffles fixedly connected to one end of the connecting shaft, and the other end of the connecting shaft fixedly connected to the transmission shaft of the lower servo motor, which is fixedly mounted on the base.

[0013] Preferably, the secondary screening plate is fixedly installed on the main body of the mounting frame. The secondary screening plate has several water outlet holes. The lower surface of the secondary screening plate is in contact with the inner baffle. A waterproof servo motor is fixedly installed on the bottom surface of the inner baffle. The transmission shaft of the waterproof servo motor is fixedly connected to the shaft of the lower driving mechanism.

[0014] Preferably, the connecting shaft is rotatably connected to the three-stage screening plate, the three-stage screening plate is fixedly installed on the main body of the mounting frame, and a storage box drainage groove is provided on the side of the main body of the mounting frame. The storage box drainage groove has an arc-shaped groove structure, and the storage box drainage groove is flush with the screening tank water inlet groove provided on the main body of the screening tank. The screening tank water inlet groove has an arc-shaped groove structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention proposes an automatic fish fry grading device. In conjunction with a lower and upper driving mechanism, the device rotates to drive the fish school, causing the selected fry to swim into the fry storage box installed on the main body of the storage box through the fry outlet, side opening, and opening groove. Personnel can then remove the fry storage box to obtain the selected fry. The operation is simple; individual fry storage boxes can be removed separately. The storage boxes are lightweight, reducing the burden on personnel and facilitating easy removal and use. After the primary and secondary grading plates select the fry, the inner baffle prevents the fish below from swimming upwards, improving the grading effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a partial structural diagram of the device of this utility model;

[0020] Figure 4 This is a schematic diagram of part of the structure of the device of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the device of this utility model.

[0022] In the diagram: 1. Base; 2. Screening tank body; 3. Mounting frame body; 4. Fry outlet; 5. Side baffle; 6. Waterproof electric actuator; 7. Upper servo motor; 8. Upper driving mechanism; 9. Side opening; 10. Storage box body; 11. Opening slot; 12. Screening tank water inlet slot; 13. Storage box drainage slot; 14. Fry storage box; 15. Drainage hole; 16. Primary screening plate; 17. Water outlet; 18. Secondary screening plate; 19. Tertiary screening plate; 20. Lower driving mechanism; 21. Lower servo motor; 22. Connecting shaft; 23. Waterproof servo motor; 24. Inner baffle; 25. Liquid level sensor body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: an automatic fish fry grading device, comprising: a base 1, on which a screening tank body 2 is mounted, the screening tank body 2 having several side openings 9 and a screening tank water inlet trough 12, the screening tank body 2 having an upper driving mechanism 8 and three mounting frame bodies 3, the three mounting frame bodies 3 having a first-level screening plate 16, a second-level screening plate 18 and a third-level screening plate 19 arranged sequentially from top to bottom, the third-level screening plate 19 having a connecting shaft 22 connected to an inner baffle 24, the bottom surface of the inner baffle 24 having a waterproof servo motor 23, the transmission shaft of the waterproof servo motor 23 being connected to a lower driving mechanism 20; a storage box body 10, the storage box body 10 having an opening slot 11 and a storage box drainage trough 13, the storage box body 10 having a fish fry storage box 14, the fish fry storage box 14 having several drainage holes 15 on its side; and mounting frame bodies 3, the mounting frame bodies 3 having a fish fry outlet 4 on their side.

[0025] The liquid level sensor body 25 involved in this utility model is a BCSD50OO02-YPC25C-EV02 capacitive liquid level sensor manufactured by BALLUFF.

[0026] In practical use, the lower driving mechanism 20 and the upper driving mechanism 8 rotate to drive the fish school, so that the selected fry swim into the fry storage box 14 installed on the storage box body 10 through the fry outlet 4, the side opening 9 and the opening groove 11. Personnel can then take out the fry storage box 14 to obtain the selected fry. The operation is simple, the fry storage box 14 is lighter, the burden on personnel is small, and it is easy for personnel to take out and use. After the primary screening plate 16 and the secondary screening plate 18 screen the fry, the inner baffle 24 can prevent the fish below from swimming upwards, thus improving the screening effect. Example 2

[0027] Based on Embodiment 1, an upper driving mechanism 8 is provided to reduce the burden on personnel. The shaft of the upper driving mechanism 8 is fixedly connected to the transmission shaft of the upper servo motor 7. The upper servo motor 7 is fixedly installed on the main body 2 of the screening tank. A waterproof electric push rod 6 is fixedly installed on the inner side of the main body 2 of the screening tank. The telescopic end of the waterproof electric push rod 6 is fixedly connected to the upper surface of the side baffle 5. The side baffle 5 has an arc-shaped plate structure. The side baffle 5 can be inserted into the fry outlet 4, and the side baffle 5 can slide up and down along the fry outlet 4. The fry outlet 4 has an arc-shaped groove structure. Activating the lowest layer of the waterproof baffle... The electric actuator 6 pulls the side baffle 5 upwards, allowing personnel to feed fish through the opening trough 11, side opening 9, and fry outlet 4 onto the three-stage screening plate 19 installed on the lowest-level mounting frame 3. Fish fry and water can then be poured into the screening tank 2. Attracted by the feed, the fish fry swim downwards, passing through the screening holes on the first-stage screening plate 16 and the second-stage screening plate 18. Once the screening is complete, the upper servo motor 7 is activated to drive the upper driving mechanism 8, which in turn drives the fish. The drain valve on the screening tank 2 is then opened. A water valve drains water outwards. In conjunction with the control program on this device, the liquid level sensor bodies 25 are all fixedly installed on the inner side of the mounting frame body 3. The liquid level sensor bodies 25 measure the liquid level based on changes in capacitance. Liquids and air have different dielectric constants; when the liquid level changes, the effective dielectric constant between the sensor electrodes changes, causing a change in capacitance. By measuring the capacitance value, the liquid level height can be determined. This system, in conjunction with the liquid level sensor bodies 25 installed on the mounting frame body 3, monitors the liquid level. When the liquid level is at the level of the first-stage screening plate 16... When installing the frame body 3, start the top waterproof electric push rod 6, pull the side baffle 5 to move upward along the fry outlet 4, the upper driving mechanism 8 rotates to drive the fish school, so that the fry swim into the fry storage box 14 installed on the storage box body 10 through the fry outlet 4, the side opening 9 and the opening groove 11. The water in the fry storage box 14 flows into the screening tank body 2 through the drain hole 15, the storage box drain groove 13 and the screening tank inlet groove 12. Start the waterproof servo motor 23 to drive the lower driving mechanism 20 to rotate, and drive the fry in the water through the rotation of the lower driving mechanism 20.

[0028] The secondary screening plate 18 is fixedly installed on the main body 3 of the mounting frame. Several water outlet holes 17 are opened on the secondary screening plate 18. The lower surface of the secondary screening plate 18 is in contact with the inner baffle 24. A waterproof servo motor 23 is fixedly installed on the bottom surface of the inner baffle 24. The transmission shaft of the waterproof servo motor 23 is fixedly connected to the shaft of the lower driving mechanism 20.

[0029] A screening tank body 2 is fixedly installed on the base 1. A liquid level sensor body 25 is fixedly installed inside the screening tank body 2. A storage box body 10 is fixedly connected to the side of the screening tank body 2. An opening groove 11 is opened on the inner side of the storage box body 10. The opening groove 11 has an arc-shaped groove structure and corresponds to and is flush with the side opening 9 opened on the screening tank body 2. The side opening 9 has an arc-shaped groove structure and is flush with the fish fry outlet 4 opened on the mounting frame body 3. The fish fry storage box is placed inside the mounting frame body 3. 14. Several drainage holes 15 are provided on the inner side of the fish fry storage box 14. The drainage holes 15 are circular groove structures. When the liquid level sensor body 25 detects that the liquid level is on the mounting frame body 3 installed on the secondary screening plate 18, the waterproof electric push rod 6 in the middle section is activated to pull the side baffle 5 to move upward along the fish fry outlet 4. The lower driving mechanism 20 drives the fish fry to cooperate with the water level to drop, so that the fish fry swim from the fish fry outlet 4, the side opening 9 and the opening groove 11 into the fish fry storage box 14 installed on the storage box body 10.

[0030] The connecting shaft 22 is rotatably connected to the three-stage screening plate 19, which is fixedly installed on the mounting frame body 3. The mounting frame body 3 has a storage box drainage groove 13 on its side. The storage box drainage groove 13 has an arc-shaped groove structure and is flush with the screening tank inlet groove 12 on the screening tank body 2. The screening tank inlet groove 12 has an arc-shaped groove structure. When the liquid level sensor body 25 detects that the liquid level is on the mounting frame body 3 installed on the three-stage screening plate 19, the lowest section of the waterproof electric push rod 6 is activated to pull the side baffle 5 upward along the fry outlet 4. The lower driving mechanism 20 drives the fry to cooperate with the water level drop, so that the fry swim from the fry outlet 4, the side opening 9 and the opening groove 11 into the fry storage box 14 installed on the storage box body 10. In this way, the fry can be driven into the fry storage box 14, and personnel can easily take out the fry storage box 14 for actual use. Example 3

[0031] In order to improve the performance of the device, a connecting shaft 22 is provided based on Embodiment 2. The connecting shaft 22 has a cylindrical structure. Two inner baffles 24 are fixedly connected to one end of the connecting shaft 22, and the other end of the connecting shaft 22 is fixedly connected to the transmission shaft of the lower servo motor 21. The lower servo motor 21 is fixedly installed on the base 1. The inner baffles 24 are a combination of two quarter-circular plates and a circular plate. By starting the lower servo motor 21, the connecting shaft 22 is driven to rotate, so that the inner baffles 24 rotate 90 degrees.

[0032] The primary screening plate 16 has several water outlet holes 17. The lower surface of the primary screening plate 16 is in contact with the upper surface of the inner baffle 24. The primary screening plate 16 is fixedly installed on the mounting frame body 3, and the mounting frame body 3 is fixedly installed inside the screening tank body 2. The inner baffle 24 blocks the screening holes on the primary screening plate 16 and the secondary screening plate 18. The inner baffle 24 no longer blocks the water outlet holes 17 on the primary screening plate 16 and the secondary screening plate 18. Water can flow downward through the water outlet holes 17 and through the holes on the tertiary screening plate 19 and be discharged through the drain pipe on the screening tank body 2. After the fish fry screening is completed, the inner baffle 24 can prevent the fish below from swimming upward, thus improving the screening effect.

[0033] Working principle: In actual use, the lower driving mechanism 20 and the upper driving mechanism 8 rotate to drive the fish school, so that the selected fish fry swim into the fish fry storage box 14 installed in the storage box body 10 through the fish fry outlet 4, the side opening 9 and the opening groove 11. The personnel can then take out the fish fry storage box 14 to obtain the selected fish fry. The operation is simple. The personnel can take out the individual fish fry storage boxes 14 one by one. The fish fry storage box 14 is lighter and less burdensome for the personnel. It is easy for the personnel to take out and use. After the primary screening plate 16 and the secondary screening plate 18 screen the fish fry, the inner baffle 24 can prevent the fish below from swimming upwards, thus improving the screening effect.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic fish fry grading apparatus comprising: The base (1) is equipped with a screening tank body (2). The screening tank body (2) has several side openings (9) and a screening tank water inlet trough (12) on its side. The screening tank body (2) is characterized in that: the screening tank body (2) is equipped with an upper driving mechanism (8) and three mounting frame bodies (3). The three mounting frame bodies (3) are arranged from top to bottom with a first-level screening plate (16), a second-level screening plate (18) and a third-level screening plate (19). The third-level screening plate (19) is equipped with a connecting shaft (22). The connecting shaft (22) is connected to the inner baffle (24). The bottom surface of the inner baffle (24) is equipped with a waterproof servo motor (23). The transmission shaft of the waterproof servo motor (23) is connected to the lower driving mechanism (20). The storage box body (10) has an opening groove (11) and a storage box drainage groove (13) on it. A fish fry storage box (14) is provided inside the storage box body (10). Several drainage holes (15) are provided on the side of the fish fry storage box (14). The main body of the mounting frame (3) has a fish fry outlet (4) on its side.

2. The automatic fry grading device according to claim 1, wherein: The shaft on the upper driving mechanism (8) is fixedly connected to the transmission shaft of the upper servo motor (7). The upper servo motor (7) is fixedly installed on the screening tank body (2). A waterproof electric push rod (6) is fixedly installed on the inner side of the screening tank body (2). The telescopic end of the waterproof electric push rod (6) is fixedly connected to the upper surface of the side baffle (5). The side baffle (5) has an arc-shaped plate structure. The side baffle (5) can be inserted into the fish fry outlet (4) and can slide up and down along the fish fry outlet (4).

3. The automatic fry grading device of claim 1, wherein: The primary screening plate (16) has several water outlet holes (17). The lower surface of the primary screening plate (16) is in contact with the upper surface of the inner baffle (24). The primary screening plate (16) is fixedly installed on the mounting frame body (3). The mounting frame body (3) is fixedly installed inside the screening tank body (2).

4. The automatic fry grading device of claim 1, wherein: The base (1) is fixedly installed with a screening tank body (2), and a liquid level sensor body (25) is fixedly installed inside the screening tank body (2). A storage box body (10) is fixedly connected to the side of the screening tank body (2). An opening groove (11) is opened on the inner side of the storage box body (10). The opening groove (11) has an arc-shaped groove structure. The opening groove (11) is flush with the side opening (9) opened on the screening tank body (2). The side opening (9) has an arc-shaped groove structure. The side opening (9) is flush with the fish fry outlet (4) opened on the mounting frame body (3). A fish fry storage box (14) is placed inside the mounting frame body (3). Several drainage holes (15) are opened on the inner side of the fish fry storage box (14). The drainage holes (15) have a circular groove structure.

5. The automatic fry grading device of claim 1, wherein: The connecting shaft (22) has a cylindrical structure. Two inner baffles (24) are fixedly connected to one end of the connecting shaft (22), and the other end of the connecting shaft (22) is fixedly connected to the transmission shaft of the lower servo motor (21). The lower servo motor (21) is fixedly installed on the base (1).

6. The automatic fry grading device of claim 1, wherein: The secondary screening plate (18) is fixedly installed on the main body (3) of the mounting frame. Several water outlet holes (17) are opened on the secondary screening plate (18). The lower surface of the secondary screening plate (18) is in contact with the inner baffle (24). A waterproof servo motor (23) is fixedly installed on the bottom surface of the inner baffle (24). The transmission shaft of the waterproof servo motor (23) is fixedly connected to the shaft of the lower driving mechanism (20).

7. The automatic fry grading device of claim 1, wherein: The connecting shaft (22) is rotatably connected to the three-stage screening plate (19). The three-stage screening plate (19) is fixedly installed on the main body of the mounting frame (3). The side of the main body of the mounting frame (3) is provided with a storage box drainage groove (13). The storage box drainage groove (13) has an arc-shaped groove structure. The storage box drainage groove (13) is flush with the screening tank water inlet groove (12) opened on the main body of the screening tank (2). The screening tank water inlet groove (12) has an arc-shaped groove structure.

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