Fry density control device

Abstract

The utility model provides a fry density control device which comprises a box body, a fixing base and a buoyancy box are fixedly installed on the side of the box body respectively, an oxygen pump is fixedly installed on the fixing base, an oxygen supply pipe is fixedly installed on the oxygen pump, one end of the oxygen supply pipe is fixed to the box body, a movable plate is movably installed at one end of the box body, and a floating plate is installed on the other end of the box body. A movable plate is fixed to the top of the box body, a handle is fixed to the top of the movable plate, a cavity is formed in the box body, a movable seat is movably installed in the cavity, a displacement mechanism is fixed to one end of the box body, and one end of the displacement mechanism is fixed to the movable seat. When the fry density control device is used, the moving space of fries is compressed along with movement of the movable seat, the partition plates are rotated in the moving process of the movable seat, and all the fries between the movable seat and the arc-shaped seat are moved to the space between the partition plates and then rotated; the fry in different numbers of spaces are moved into the box body through the opening by rotating the partition plate, so that the density of the fry is controlled.

Description

Technical Field

[0001] This utility model relates to the field of density control equipment, specifically a fish fry density control device. Background Technology

[0002] With the development of aquaculture and the increase in stocking density, it is impossible to directly control the density of fish fry, leading to frequent outbreaks of fish fry diseases and affecting aquaculture efficiency. Excessive fish fry density increases contact and communication among fish fry, thereby increasing the risk of disease transmission. Controlling fish fry density can reduce the risk of disease transmission and protect the healthy growth of fish fry. Current fish fry density control methods mainly involve manually harvesting fish fry to control and adjust the density within the stocking pond. This method consumes a lot of manpower and resources, is relatively cumbersome to operate, and is not precise enough in terms of density control.

[0003] According to a patent document with publication number CN221306873U, a fish fry density control device includes a rearing pond. A main filter plate is installed on one side of the rearing pond, and a secondary filter plate is installed on the other side. A protective shell is fixedly connected to the bottom of the rearing pond, located between the main filter plate and the secondary filter plate. The protective shell is connected to the main filter plate via an inlet pipe, and to the secondary filter plate via a outlet pipe. This technical solution allows smaller fish fry to move freely within the filter plate's perforations, preventing larger fish fry from congregating and causing insufficient feed, thus slowing the growth of some fry. The control method is highly automated, saving manpower and resources. However, while this solution controls fish fry growth, it cannot quickly sort the fry during density control, causing inconvenience in use. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a fish fry density control device to solve the problems mentioned in the background. This invention has a novel structure. In use, as the movable seat moves, it compresses the activity space of the fish fry. During the movement of the movable seat, the partition plate rotates, moving all the fish fry between the movable seat and the arc-shaped seat to between the partition plate. After rotation, the partition plate moves different numbers of fish fry from different spaces into the box through the opening, thus controlling the fish fry density.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a fish fry density control device, comprising a box body, a fixed base and a buoyancy box respectively fixedly installed on the side of the box body, an oxygen pump fixedly installed on the fixed base, an oxygen supply pipe fixedly installed on the oxygen pump, one end of the oxygen supply pipe fixed to the box body, a movable plate movably installed at one end of the box body, a handle fixedly installed on the top of the movable plate, a cavity opened inside the box body, a movable seat movably installed inside the cavity, a displacement mechanism fixed at one end of the box body, and one end of the displacement mechanism fixed to the movable seat.

[0006] Furthermore, a drive motor is fixed to one side of the housing, an output shaft is mounted on the drive motor, and a rotating tube is fixed to one end of the output shaft.

[0007] Furthermore, a partition plate is welded onto the rotating tube, the partition plate has openings, and the rotating tube has an exhaust port.

[0008] Furthermore, one end of the oxygen supply tube is movably installed inside the rotating tube, and a sealing disc is fixed on the oxygen supply tube, the sealing disc cooperating with one end of the rotating tube.

[0009] Furthermore, an arc-shaped seat is fixed inside the housing, the arc-shaped seat has an opening, and a sealing plate is movably installed on one side of the arc-shaped seat.

[0010] Furthermore, a lifting mechanism is installed on the sealing plate, and the lifting mechanism is fixedly installed on the top of the box. The top of the box is fixedly installed with a feed pipe and a connecting box.

[0011] Furthermore, a through hole is provided between the partition plate and the rotating tube, and the through hole is distributed between the openings.

[0012] Furthermore, a slot and a slide are provided on one side of the box body. A support mechanism is fixed inside the slide, and a slider is fixed at one end of the support mechanism. One end of the slider is fixed to the inner wall of the movable plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. The fish fry density control device, when in use, compresses the activity space of the fish fry as the movable seat moves. During the movement of the movable seat, the partition plate is rotated to move all the fish fry between the movable seat and the arc seat to the space between the partition plate. After the partition plate is rotated, the fish fry of different numbers in the space are moved into the box through the opening by rotating the partition plate to achieve fish fry density control.

[0015] 2. In this fish fry density control device, when the rotating tube drives the partition plate to rotate, oxygen is discharged into the water through the exhaust hole and the through hole. As the partition plate rotates, it pushes the water containing oxygen bubbles to both sides, thereby rapidly increasing the oxygen in the water and facilitating the cultivation of fish fry. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a fish fry density control device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the box of a fish fry density control device according to the present invention;

[0018] Figure 3 This is a side view sectional view of the partition plate of a fish fry density control device according to the present invention.

[0019] Figure 4 This is a side view sectional view of the movable seat of a fish fry density control device according to the present invention.

[0020] In the diagram: 1. Box body; 2. Oxygen pump; 3. Fixed base; 4. Oxygen supply pipe; 5. Buoyancy box; 6. Movable plate; 7. Handle; 8. Connecting box; 9. Displacement mechanism; 10. Movable base; 11. Rotating pipe; 12. Divider plate; 13. Opening; 14. Arc-shaped base; 15. Opening; 16. Sealing plate; 17. Lifting mechanism; 18. Feed pipe; 19. Slide groove; 20. Support mechanism; 21. Slider; 22. Slot; 23. Sealing plate; 24. Through hole; 25. Output shaft; 26. Drive motor; 27. Exhaust port. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a fish fry density control device, including a box 1, with a fixed base 3 and a buoyancy box 5 fixedly installed on the sides of the box 1, an oxygen pump 2 fixedly installed on the fixed base 3, an oxygen supply pipe 4 fixedly installed on the oxygen pump 2, one end of the oxygen supply pipe 4 fixed to the box 1, a movable plate 6 movably installed on one end of the box 1, a handle 7 fixed on the top of the movable plate 6, a cavity opened inside the box 1, a movable seat 10 movably installed inside the cavity, a displacement mechanism 9 fixed on one end of the box 1, one end of the displacement mechanism 9 fixed to the movable seat 10, a drive motor 26 fixed on one side of the box 1, an output shaft 25 installed on the drive motor 26, a rotating pipe 11 fixed on one end of the output shaft 25, the drive motor 26 provides power for the rotation of the rotating pipe 11, and after the rotating pipe 11 rotates, the exhaust port 27 discharges oxygen to different positions.

[0023] In this embodiment, a partition plate 12 is welded onto the rotating tube 11, and an opening 13 is formed on the partition plate 12. An exhaust port 27 is formed on the rotating tube 11. One end of the oxygen supply tube 4 is movably installed inside the rotating tube 11. A sealing plate 23 is fixed on the oxygen supply tube 4, and the sealing plate 23 cooperates with one end of the rotating tube 11. An arc-shaped seat 14 is fixed inside the housing 1, and an opening 15 is formed on the arc-shaped seat 14. A sealing plate 16 is movably installed on one side of the arc-shaped seat 14. The lifting mechanism 17 and the displacement mechanism 9 are both linear reciprocating electric push rods. The lifting mechanism 17 controls the up and down movement of the sealing plate 16 to control the opening or closing of the opening 15.

[0024] In this embodiment, a lifting mechanism 17 is installed on the sealing plate 16. The lifting mechanism 17 is fixedly installed on the top of the box body 1. The top of the box body 1 is fixedly installed with a feed pipe 18 and a connecting box 8. A through hole 24 is opened between the partition plate 12 and the rotating pipe 11. The through hole 24 is distributed between the openings 13. A slot 22 and a sliding groove 19 are opened on one side of the box body 1. A support mechanism 20 is fixed inside the sliding groove 19. A slider 21 is fixed at one end of the support mechanism 20. One end of the slider 21 is fixed on the inner wall of the movable plate 6. The support mechanism 20 is a support spring. The support spring pushes the slider 21 to move downward. Without external force pulling, the movable plate 6 always moves downward to close the slot 22.

[0025] In use, fish fry are introduced into the tank 1 via the connecting box 8 for short-term rearing. After rearing, the fish density is controlled. During density control, the displacement mechanism 9 is activated to push the movable seat 10 towards the arc-shaped seat 14. As the movable seat 10 moves, it compresses the space for the fish to move. Simultaneously, the drive motor 26 is activated, driving the output shaft 25 and the rotating tube 11 to rotate. As the rotating tube 11 rotates, the partition plate 12 moves, separating the fish fry into sections. Once all the fish fry have entered between the partition plates 12, the partition plates 12 rotate to engage with the opening 15, moving the fish fry inside the partition plates 12 out through the opening 15 to the other side of the tank 1. Simultaneously, external radar detects the number of fish fry on both sides of the tank 1. When the number reaches the sealing control requirement, the lifting mechanism 17 is activated to push... The moving sealing plate 16 moves downward, sealing the opening 15. When the fry are moved out of the opening 15, fish feed can be added through the feed pipe 18 to one side of the arc-shaped seat 14. The fry inside the partition plate 12 swim out quickly under the attraction of the fish feed. The density is controlled by releasing fry between different numbers of partition plates 12. The fry inside the partition plate 12 at other positions move again to one side of the movable seat 10 under the action of the partition plate 12. After the movable seat 10 returns to its position, it provides a suitable space for the fry. When it is necessary to aerate the inside of the tank 1, the oxygen is discharged into the water through the exhaust hole 27 and the through hole 24 when the rotating pipe 11 drives the partition plate 12 to rotate. As the partition plate 12 rotates, it pushes the water with oxygen bubbles to both sides, thereby quickly increasing the oxygen in the water, which is convenient for the raising of fry.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A larval density control device comprising a box (1), characterised in that: The side of the box (1) is respectively fixedly installed with fixed seat (3) and buoyancy tank (5), the fixed seat (3) is fixedly installed with oxygen pump (2), the oxygen pump (2) is fixedly installed with oxygen supply pipe (4), one end of the oxygen supply pipe (4) is fixed on the box (1), one end of the box (1) is movably installed with movable plate (6), the top of the movable plate (6) is fixed with handle (7), the inside of the box (1) is opened with cavity, the inside of the cavity is movably installed with movable seat (10), one end of the box (1) is fixed with displacement mechanism (9), one end of the displacement mechanism (9) is fixed on the movable seat (10).

2. A larval density control device according to claim 1, wherein: The side of the box (1) is fixed with drive motor (26), the output shaft (25) is installed on the drive motor (26), one end of the output shaft (25) is fixed with rotating pipe (11).

3. A larval density control device according to claim 2, wherein: The rotating pipe (11) is welded with partition plate (12), the partition plate (12) is opened with opening (13), the rotating pipe (11) is opened with exhaust hole (27).

4. The larval density control device of claim 1, wherein: One end of the oxygen supply pipe (4) is movably installed in the rotating pipe (11), the oxygen supply pipe (4) is fixed with sealing disc (23), the sealing disc (23) is matched with one end of the rotating pipe (11).

5. The larval density control device of claim 1, wherein: The inside of the box (1) is fixed with arc-shaped seat (14), the arc-shaped seat (14) is opened with opening (15), one side of the arc-shaped seat (14) is movably installed with sealing plate (16).

6. A larval density control device according to claim 5, wherein: The sealing plate (16) is installed with lifting mechanism (17), the lifting mechanism (17) is fixedly installed on the top of the box (1), the top of the box (1) is respectively fixedly installed with feed pipe (18) and connecting box (8).

7. A larval density control device according to claim 3, wherein: The through hole (24) is opened between the partition plate (12) and the rotating pipe (11), the through hole (24) is distributed between the opening (13).

8. A larval density control device according to claim 1, wherein: The side of the box (1) is opened with slot (22) and chute (19), the inside of the chute (19) is fixed with supporting mechanism (20), one end of the supporting mechanism (20) is fixed with sliding block (21), one end of the sliding block (21) is fixed on the inner wall of the movable plate (6).

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