Water changing device for aquaculture breeding production

By using porous plastic plates and stainless steel mesh structures in the water exchange device for aquaculture seedling production, the problem of fish fry damage caused by water suction is solved, enabling safe water exchange for fish fry and convenient movement of the device, thus reducing aquaculture costs.

CN224291043UActive Publication Date: 2026-05-29PANJIN RAOYANG AGRI SCI & TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANJIN RAOYANG AGRI SCI & TECH DEV CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing aquaculture seedling production water exchange devices, the suction force of the water flow may cause fish fry to be sucked into the water pumping hose, resulting in injury or death, and may also damage the variable frequency water pump, increasing aquaculture costs.

Method used

The device employs a porous plastic plate and a stainless steel mesh structure. The porous plastic plate disperses the water flow to reduce local flow velocity and prevent eddies from forming, while the stainless steel mesh intercepts fish fry. Combined with the design of casters and a power supply box, the device can be moved flexibly and powered.

Benefits of technology

It effectively protects fish fry from damage, reduces fish fry mortality, improves the adaptability and ease of use of the equipment, and reduces aquaculture costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224291043U_ABST
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Abstract

The utility model relates to the technical field of aquaculture, and disclose a kind of water change device for aquaculture fry production, including bearing plate, the top of bearing plate one side fixed mounting has connecting plate, the top of connecting plate fixed mounting has frequency conversion water pump, the pumping end of frequency conversion water pump movably installs water suction hose, the one side of water suction hose fixed mounting has installation box, the inner end of installation box is equipped with installation groove, the inner end of installation groove movably installs porous plastic plate, the inner wall of installation box fixed mounting has link frame, the one side of link frame movably installs stainless steel screen;This water change device for aquaculture fry production, by installing porous plastic plate and stainless steel screen, porous plastic plate can be concentrated water flow into multiple fine stream, reduce local flow rate, avoid forming vortex that attract fry at the same time, stainless steel screen can intercept fry, avoid fry into water suction hose, avoid causing fry injury or death, guarantee the benefit of cultivation.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a water exchange device for aquaculture seedling production. Background Technology

[0002] Aquaculture is the production of aquatic economic animals and plants by humans using available waters, according to the ecological habits of the aquatic species and their requirements for aquatic environmental conditions, and employing aquaculture technology and facilities. It is one of the agricultural production sectors. In the aquaculture industry, water quality management during the seedling stage directly affects the survival rate and growth quality of fish fry, and frequent water changes are an important means of maintaining water quality.

[0003] The prior art patent document CN219781284U discloses a water exchange device for aquaculture seedling production, including a lifting component, an anti-clogging component on the lifting component, a water exchange tank connected to the lifting component, a water exchange component inside the water exchange tank, a water level sensor and a through hole on the water exchange tank, and a filter screen inside the through hole. The filter screen cooperates with the anti-clogging component. This device does not require manual adjustment of the water inlet depth of the water exchange equipment, and automatically and quickly completes the accurate adjustment of the water inlet depth. At the same time, it uses multiple pipelines for water exchange and suction, shortening the water exchange time. It uses an electric push rod to achieve contact between the scraper and the filter screen to reduce the probability of filter screen clogging, resulting in good water exchange effect.

[0004] Existing traditional water exchange devices may cause fish fry to be sucked into the water suction hose due to water flow suction during operation. Then, the fry may be damaged or die after passing through the variable frequency water pump, which seriously affects the breeding efficiency. At the same time, it may also damage the variable frequency water pump, increasing the breeding cost. It is not convenient to meet the diversification of aquatic seedling breeding and has low practicality. Utility Model Content

[0005] The purpose of this invention is to provide a water exchange device for aquaculture seedling production, which solves the problem mentioned in the background art that water suction may cause fish fry to be sucked into the pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water exchange device for aquaculture seedling production, comprising a support plate, a connecting plate fixedly installed on one side of the top of the support plate, a variable frequency water pump fixedly installed on the top of the connecting plate, a water pumping hose movably installed at the pumping end of the variable frequency water pump, an installation box fixedly installed on one side of the water pumping hose, an installation groove opened at the inner end of the installation box, a perforated plastic plate movably installed at the inner end of the installation groove, a connecting frame fixedly installed on the inner wall of the installation box, and a stainless steel baffle mesh movably installed on one side of the connecting frame.

[0007] The porous plastic plate is fixedly installed with a connecting plate at its top end. Bolts are movably installed at the four corners of the top end of the connecting plate. The bolts extend through the connecting plate to the inner end of the mounting box and are threadedly connected to the mounting box.

[0008] The mounting box has a snap-fit ​​block fixedly installed at the bottom, and the bottom of the porous plastic plate has a snap-fit ​​groove that is adapted to the snap-fit ​​block and is movably connected to the snap-fit ​​block.

[0009] The connecting plate has a handle fixedly installed at its top, and bolts are movably installed at the four corners of one side of the stainless steel mesh. The bolts extend through the stainless steel mesh to the inner end of the connecting frame and are threadedly connected to the connecting frame.

[0010] The support plate has casters fixedly installed at the four corners of its bottom end, and a foot brake is installed on one side of each caster. A power supply box is fixedly installed on one side of the top end of the support plate, away from the variable frequency water pump. A charging port is provided on one side of the power supply box, and a waterproof plug is movably installed inside the charging port.

[0011] Among them, a storage box is fixedly installed on one side of the top of the support plate, near the power supply box, and a cover plate is hinged to the top of the storage box. A fixing plate is fixedly installed on one side of the top of the support plate, away from the variable frequency water pump. Push handles are fixedly installed on both sides of the top of the fixing plate. A drain pipe is movably installed at the drain end of the variable frequency water pump.

[0012] This utility model discloses a water-changing device for aquaculture seedling production. By installing a porous plastic plate and a stainless steel mesh, the porous plastic plate disperses the concentrated water flow into multiple fine streams, reducing local flow velocity and preventing the formation of whirlpools that attract fish fry. The stainless steel mesh intercepts the fish fry, preventing them from entering the pump hose and causing injury or death, thus ensuring aquaculture efficiency. Operators can adjust the power of the variable frequency water pump and replace the porous plastic plate and stainless steel mesh according to the size of the fish fry, improving adaptability. With casters and a storage box, operators can move the water-changing device to the area requiring water changing using the casters. The power supply box provides power to the device, eliminating the need for a power cord outdoors, making it convenient and quick to use. After water changing, the power supply box can be charged through the charging port, which is waterproofed to prevent water ingress. The storage box can store the pump hose and drain pipe. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram of a local detail.

[0018] In the diagram: 1. Bearing plate; 2. Connecting plate; 3. Variable frequency water pump; 4. Water suction hose; 5. Mounting box; 6. Mounting groove; 7. Perforated plastic plate; 8. Connecting frame; 9. Stainless steel mesh; 10. Connecting plate; 11. Bolt 1; 12. Clip block; 13. Clip groove; 14. Handle; 15. Bolt 2; 16. Casters; 17. Foot brake; 18. Power supply box; 19. Charging port; 20. Waterproof plug; 21. Storage box; 22. Cover plate; 23. Fixing plate; 24. Push handle; 25. Drain pipe. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a water exchange device for aquaculture seedling production, including a support plate 1, a connecting plate 2 fixedly installed on one side of the top of the support plate 1, a variable frequency water pump 3 fixedly installed on the top of the connecting plate 2, a water pumping hose 4 movably installed on the water pumping end of the variable frequency water pump 3, an installation box 5 fixedly installed on one side of the water pumping hose 4, an installation groove 6 opened in the inner end of the installation box 5, a perforated plastic plate 7 movably installed in the inner end of the installation groove 6, a connecting frame 8 fixedly installed on the inner wall of the installation box 5, and a stainless steel baffle 9 movably installed on one side of the connecting frame 8.

[0021] like Figures 1-4As shown, a connecting plate 10 is fixedly installed at the top of the porous plastic plate 7. Bolts 11 are movably installed at the four corners of the top of the connecting plate 10. Bolts 11 extend through the connecting plate 10 to the inner end of the mounting box 5 and are threadedly connected to the mounting box 5. A snap-fit ​​block 12 is fixedly installed at the bottom of the mounting box 5. A snap-fit ​​groove 13 is provided at the bottom of the porous plastic plate 7. The snap-fit ​​groove 13 is adapted to the snap-fit ​​block 12 and is movably connected to the snap-fit ​​block 12. A handle 14 is fixedly installed at the top of the connecting plate 10. Bolts 25 are movably installed at the four corners of one side of the stainless steel mesh 9. Bolts 25 extend through the stainless steel mesh 9 to the inner end of the connecting frame 8 and are threadedly connected to the connecting plate 8. Frame 8, universal wheels 16 are fixedly installed at the four corners of the bottom end of the support plate 1, and foot brakes 17 are installed on one side of the universal wheels 16. A power supply box 18 is fixedly installed on one side of the top of the support plate 1, away from the variable frequency water pump 3. A charging port 19 is opened on one side of the power supply box 18. A waterproof plug 20 is movably installed inside the charging port 19. A storage box 21 is fixedly installed on one side of the top of the support plate 1, near the power supply box 18. A cover plate 22 is hinged to the top of the storage box 21. A fixing plate 23 is fixedly installed on one side of the top of the support plate 1, away from the variable frequency water pump 3. Push handles 24 are fixedly installed on both sides of the top of the fixing plate 23. A drain pipe 25 is movably installed at the drain end of the variable frequency water pump 3.

[0022] Working principle: When using the water exchange device in aquaculture seedling production, the operator can push the handle 24 to move the device to the area requiring water exchange via the casters 16. The pumping hose 4 and drain pipe 25 are connected to the pumping and draining ends of the variable frequency water pump 3, respectively. The drain pipe 25 is then introduced into the collection tank. The pumped wastewater can be filtered and recycled. The porous plastic plate 7 disperses the concentrated water flow into multiple fine streams, reducing local flow velocity and preventing the formation of whirlpools that attract fish fry. The stainless steel mesh 9 intercepts fish fry, preventing them from entering the pumping hose 4 and causing injury. The death of fish fry ensures the profitability of aquaculture. Staff can adjust the power of the variable frequency water pump 3 according to the size of the fish fry, and replace the porous plastic plate 7 and stainless steel mesh 9 to improve adaptability. The porous plastic plate 7 and stainless steel mesh 9 are installed and positioned by bolt 11 and bolt 2 15 respectively. The power box 18 can provide power to the water changing device. It is convenient and quick to use outdoors without the need to drag the power cord. After the water change is completed, the power box 18 can be charged through the charging port 19. The waterproof plug 20 can waterproof the charging port 19 to prevent water from entering. The storage box 21 can store the water pumping hose 4 and the drain pipe 25.

[0023] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A water exchange device for aquaculture seedling production, comprising a support plate (1), characterized in that: A connecting plate (2) is fixedly installed on one side of the top of the bearing plate (1). A variable frequency water pump (3) is fixedly installed on the top of the connecting plate (2). A water pumping hose (4) is movably installed on the pumping end of the variable frequency water pump (3). An installation box (5) is fixedly installed on one side of the water pumping hose (4). An installation groove (6) is opened at the inner end of the installation box (5). A perforated plastic plate (7) is movably installed at the inner end of the installation groove (6). A connecting frame (8) is fixedly installed on the inner wall of the installation box (5). A stainless steel baffle (9) is movably installed on one side of the connecting frame (8).

2. The aquaculture seedling production water exchange device according to claim 1, characterized in that: A connecting plate (10) is fixedly installed on the top of the porous plastic plate (7). Bolts (11) are movably installed at the four corners of the top of the connecting plate (10). Bolts (11) extend through the connecting plate (10) to the inner end of the mounting box (5). Bolts (11) are threadedly connected to the mounting box (5).

3. The aquaculture seedling production water exchange device according to claim 2, characterized in that: The bottom of the mounting box (5) is fixedly installed with a snap-fit ​​block (12), and the bottom of the porous plastic plate (7) is provided with a snap-fit ​​groove (13). The snap-fit ​​groove (13) is adapted to the snap-fit ​​block (12), and the snap-fit ​​groove (13) is movably connected to the snap-fit ​​block (12).

4. The aquaculture seedling production water exchange device according to claim 3, characterized in that: A handle (14) is fixedly installed on the top of the connecting plate (10). Bolts (15) are movably installed at the four corners of one side of the stainless steel mesh (9). Bolts (15) extend through the stainless steel mesh (9) to the inner end of the connecting frame (8). Bolts (15) are threadedly connected to the connecting frame (8).

5. The aquaculture seedling production water exchange device according to claim 4, characterized in that: The four corners of the bottom of the support plate (1) are fixedly installed with casters (16), and a foot brake (17) is installed on one side of the casters (16). A power supply box (18) is fixedly installed on one side of the top of the support plate (1), away from the variable frequency water pump (3). A charging port (19) is opened on one side of the power supply box (18), and a waterproof plug (20) is movably installed on the inner end of the charging port (19).

6. The aquaculture seedling production water exchange device according to claim 5, characterized in that: A storage box (21) is fixedly installed on one side of the top of the support plate (1) near the power supply box (18). A cover plate (22) is hinged to the top of the storage box (21). A fixing plate (23) is fixedly installed on one side of the top of the support plate (1) away from the variable frequency water pump (3). Push handles (24) are fixedly installed on both sides of the top of the fixing plate (23). A drain pipe (25) is movably installed at the drain end of the variable frequency water pump (3).