Salmon and trout roe hatching device
By incorporating features such as a distributed fan, a circulating water pump, and a filter assembly, the problem of space congestion caused by fish eggs piling up was solved, achieving uniform distribution of salmon and trout eggs and sufficient dissolved oxygen, thereby improving hatching efficiency and the quality of fry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-03
AI Technical Summary
In existing salmon and trout egg hatching devices, fish eggs tend to pile up in one place, leading to localized overcrowding. The eggs are squeezed against each other, making it difficult for them to exchange substances and access sufficient dissolved oxygen water, thus inhibiting their respiration.
The system employs a distributed fan and circulating water pump system, combined with heating blocks and fluorescent lamp components. The incubator is designed with filter components and pressure nozzles to disperse fish eggs through water flow and airflow, providing sufficient dissolved oxygen and light to ensure the appropriate temperature and light conditions for incubation.
It effectively disperses fish eggs, improves hatching efficiency and fry quality, increases hatching rate, promotes material exchange and respiration, and meets the growth needs of fish eggs.
Smart Images

Figure CN224069491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of incubation device technology, specifically a salmon and trout egg incubation device. Background Technology
[0002] Salmon and trout, as cold-water fish with high economic value, are popular among consumers due to their delicious and nutritious flesh. With the improvement of people's living standards and the increasing demand for high-quality aquatic products, salmon and trout farming has developed rapidly worldwide, with the scale of farming continuously expanding. In the process of salmon and trout farming, egg hatching is a crucial step, and its hatching rate and the quality of the fry directly affect the economic benefits and sustainable development of the entire aquaculture industry.
[0003] For example, Chinese utility model patent application number 201820233163.8 discloses a fish egg incubation device. The device features a purification layer that cleans the water entering the incubation tank, making the water clearer and reducing the amount of bacteria introduced. Furthermore, the incubation device has been changed from a single tank to a larger tank containing a smaller tank, and the porous plastic board has been replaced with an incubation net. Water flows through the egg-holding area to the bottom of the incubation tank, then enters the outer tank through the outlet, and finally flows out along the top edge of the outer tank. This solves the problem of traditional incubation devices easily generating air bubbles, leading to the death of many fertilized eggs, and improves the hatching rate. However, this device still has certain shortcomings.
[0004] When placing fish eggs, they tend to pile up in one place, which makes it difficult to disperse them later. This leads to local congestion and the eggs squeezing each other. The piled-up eggs are not conducive to the exchange of substances in the incubation environment. The eggs inside have difficulty accessing sufficient dissolved oxygen water, and their respiration is inhibited.
[0005] Therefore, we propose a salmon and trout egg incubation device to address the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide a salmon and trout egg incubation device to solve the problems mentioned in the background art, where fish eggs are easily piled up in one place when placed, which is not conducive to the subsequent dispersion of fish eggs, resulting in local space congestion, mutual compression between fish eggs, and the accumulation of fish eggs is not conducive to the exchange of substances in the incubation environment. Fish eggs inside have difficulty contacting sufficient dissolved oxygen water, and their respiration is inhibited.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a salmon and trout egg hatching device, comprising an outer box and an incubation box, wherein the incubation box is installed inside the outer box via a rotating shaft, and a filter assembly is installed on the side of the incubation box; a fixing column is installed inside the incubation box; a connecting strip is installed on the top of the outer box; a drive shaft is installed on the top of the fixing column; and a dispersing fan is installed on the lower surface of the connecting strip.
[0008] A water tank is installed on the left side of the outer casing, and a circulating water pump is installed above the water tank. An overflow pipe is installed on the upper left side of the water tank.
[0009] The left and right sides of the fixed column are equipped with placement plates via hinge seats, and the upper surface of the placement plates is equipped with baffles. The left and right sides of the fixed column are equipped with limit plates, the limit plates are equipped with limit bolts, and the placement plates are equipped with abutment blocks.
[0010] Preferably, a heating block is installed at the bottom of the outer box, and the heating block has a waterproof structure design. The bottom of the rotating shaft is connected to the bottom of the outer box through a bearing seat. Drainage components are provided on both the outer box and the incubator.
[0011] With the above structural design, the waterproof heating block at the bottom of the outer box can precisely adjust the water temperature, which meets the incubation temperature requirements of salmon and trout eggs.
[0012] Preferably, a servo motor is mounted above the connecting strip, and the servo motor is connected to the transmission shaft via an output shaft.
[0013] With the above structural design, the servo motor drives the transmission shaft to rotate, causing the fixed column and the incubation box to rotate. In conjunction with the pressure nozzle, water is sprayed evenly into the incubation box, which not only provides sufficient dissolved oxygen water for the fish eggs to meet their breathing needs, but also uses the impact force of the water flow to further disperse the fish eggs, enhance the exchange of substances, and improve the hatching efficiency and the quality of the fry.
[0014] Preferably, there are two dispersion fans, and the dispersion fans are located above the placement plate. A connecting seat is installed on the right side of the outer casing, and a fluorescent lamp assembly is installed on the connecting seat.
[0015] The above structural design effectively disperses the fish eggs on the placement plate, preventing them from piling up, increasing the space between the eggs, and promoting material exchange and respiration. The fluorescent lamp assembly on the right side connector of the outer box provides illumination, meeting the lighting conditions for fish egg hatching and optimizing the hatching environment.
[0016] Preferably, the circulating water pump is equipped with an inlet pipe and an outlet pipe on its left and right sides, respectively. The inlet pipe is connected to the inside of the water tank, and the outlet pipe is connected to the inside of the outer tank.
[0017] The above structural design allows the water in the tank to circulate within the device, while pressure nozzles spray water onto the hatching tank to provide dissolved oxygen. The overflow pipe maintains a stable water level in the tank, ensuring the device operates continuously and provides a stable water quality environment for fish egg development.
[0018] Preferably, the overflow pipe is connected to the interior of the water tank, and a filter screen is installed inside the water tank. The filter screen is located below the overflow pipe, and a pressure nozzle is installed below the outlet pipe. The pressure nozzle sprays water onto the filter screen assembly on the incubator, and the filter screen assembly is detachably connected to the incubator.
[0019] With the above structural design, the filter screen inside the water tank filters out impurities in the water, preventing them from entering the outer box and affecting the hatching of fish eggs; the pressure nozzle sprays water onto the filter screen assembly, which not only cleans the filter screen but also delivers dissolved oxygen water to the fish eggs; the filter screen assembly is detachable, making it easy to clean and replace, ensuring excellent water quality and improving the quality of the hatching environment.
[0020] Preferably, magnetic blocks are installed on both the left and right sides of the fixing column, the magnetic blocks are attracted to the placement plate, the limiting plate is located above the placement plate, and the upper surface of the abutment block is provided with threaded grooves, and the limiting bolts are threadedly connected to the threaded grooves.
[0021] The above structural design facilitates control of the placement plate's state, making operation convenient during the placement and dispersion of fish eggs. This allows the fish eggs to fall smoothly into the incubation box and be further dispersed. The baffle prevents the fish eggs from slipping onto the hinge seat, improving the utilization rate of the fish eggs and the hatching effect.
[0022] Compared with the prior art, the beneficial effects of this utility model are: the salmon and trout egg incubation device:
[0023] 1. Optimize the distribution of fish eggs: Place salmon and trout eggs on a placement plate and blow air onto the plate using a dispersion fan. This facilitates the initial dispersion of the salmon and trout eggs on the placement plate, providing ample space for the eggs, reducing mutual compression, promoting the exchange of substances in the incubation environment, improving the respiration efficiency of the fish eggs, and promoting the healthy development of the fish eggs.
[0024] 2. Provide a suitable incubation environment: The circulating water pump, pressure nozzle and filter assembly work together to provide a continuous supply of dissolved oxygen water for the fish eggs, ensuring their breathing needs are met. The heating block can regulate the water temperature, and the fluorescent light assembly provides illumination. Together, they create the suitable temperature, water quality and light conditions required for the incubation of salmon and trout eggs, improving the hatching rate and the quality of the fry. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the main cross-section of the present invention;
[0026] Figure 2 This is a schematic diagram of the structure of the placement plate of this utility model when in use;
[0027] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0028] Figure 4 This is a schematic diagram of the internal structure of the water tank of this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the incubator box after the filter screen has been removed.
[0030] In the diagram: 1. Outer casing; 2. Heating block; 3. Rotating shaft; 4. Incubator; 5. Filter assembly; 6. Fixing column; 7. Connecting strip; 8. Servo motor; 9. Drive shaft; 10. Dispersing fan; 11. Connecting seat; 12. Fluorescent lamp assembly; 13. Water tank; 14. Filter screen; 15. Circulating water pump; 16. Inlet pipe; 17. Outlet pipe; 18. Overflow pipe; 19. Pressure nozzle; 20. Hinge seat; 21. Placement plate; 22. Magnetic block; 23. Baffle; 24. Limiting plate; 25. Limiting bolt; 26. Abutment block. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see Figures 1-5This utility model provides a technical solution: a salmon and trout egg incubation device, including an outer box 1, a heating block 2, a rotating shaft 3, an incubation box 4, a filter assembly 5, a fixing column 6, a connecting strip 7, a servo motor 8, a transmission shaft 9, a dispersing fan 10, a connecting seat 11, a fluorescent lamp assembly 12, a water tank 13, a filter screen 14, a circulating water pump 15, a water inlet pipe 16, a water outlet pipe 17, an overflow pipe 18, a pressure nozzle 19, a hinge seat 20, a placement plate 21, a magnetic block 22, a baffle 23, a limiting plate 24, a limiting bolt 25, and an abutment. Block 26, an incubator 4 is installed inside the outer box 1 via a rotating shaft 3. A heating block 2 is installed at the bottom of the inner side of the outer box 1, and the heating block 2 has a waterproof design. The bottom of the rotating shaft 3 is connected to the bottom of the inner side of the outer box 1 via a bearing seat. Both the outer box 1 and the incubator 4 are equipped with drainage components, which can heat the water according to the temperature required for salmon and trout egg hatching to maintain a suitable water temperature inside the incubator 4. A filter assembly 5 is installed on the side of the incubator 4, and a fixing column 6 is installed inside the incubator 4. A connecting strip 7 is installed on the top of the outer box 1. A servo motor 8 is installed above the incubator 4. The servo motor 8 is connected to a transmission shaft 9 via an output shaft. When the servo motor 8 is started, it drives the transmission shaft 9 to rotate via the output shaft. The transmission shaft 9 is connected to a fixed column 6, which in turn rotates the fixed column 6. The fixed column 6 then rotates the incubator 4, allowing the pressure nozzle 19 to spray water into the incubator 4 through the filter assembly 5. The sprayed water provides dissolved oxygen to the fish eggs, ensuring they have the oxygen needed for respiration. Furthermore, the impact of the water flow helps to further disperse the fish eggs, allowing them to breathe more easily. The exchange of substances around the eggs is more efficient. A drive shaft 9 is installed above the fixed column 6, and a dispersing fan 10 is installed on the lower surface of the connecting strip 7. There are two dispersing fans 10, and the dispersing fans 10 are located above the placement plate 21. A connecting seat 11 is installed on the right side of the outer box 1, and a fluorescent lamp assembly 12 is installed on the connecting seat 11. When the salmon and trout eggs are placed on the placement plate 21, the dispersing fans 10 blow air onto the placement plate 21, which facilitates the initial dispersal of the salmon and trout eggs on the placement plate 21. Some of the salmon and trout eggs fall into the incubator 4.
[0033] A water tank 13 is installed on the left side of the outer casing 1, and a circulating water pump 15 is installed above the water tank 13. Inlet pipes 16 and outlet pipes 17 are installed on the left and right sides of the circulating water pump 15, respectively. Inlet pipes 16 are connected to the interior of the water tank 13, and outlet pipes 17 are connected to the interior of the outer casing 1. When the circulating water pump 15 is started, the inlet pipes 16 on both sides of the circulating water pump 15 are connected to the interior of the water tank 13, and the outlet pipes 17 are connected to the interior of the outer casing 1. Water from the water tank 13 is drawn into the circulating water pump 15 through the inlet pipes 16 and then discharged through the outlet pipes 17. A pressure nozzle 19 below the outlet pipe 17 sprays water onto the incubator. The filter assembly 5 on the hatching box 4 allows water to be discharged through the overflow pipe 18 when the water level in the water tank 13 is too high, ensuring a stable water level in the water tank 13. The overflow pipe 18 is installed on the upper left side of the water tank 13 and is connected to the inside of the water tank 13. The filter screen 14 is installed inside the water tank 13 and is located below the overflow pipe 18. A pressure nozzle 19 is installed below the water outlet pipe 17 and sprays water onto the filter assembly 5 on the hatching box 4. The filter assembly 5 is detachably connected to the hatching box 4. The filter screen 14 can filter impurities in the water to prevent them from entering the outer box 1 and affecting the hatching of fish eggs.
[0034] Both sides of the fixed column 6 are fitted with placement plates 21 via hinge seats 20, and baffles 23 are installed on the upper surface of the placement plates 21. Limiting plates 24 are installed on both sides of the fixed column 6, with limiting bolts 25 installed on the limiting plates 24. Abutment blocks 26 are installed on the placement plates 21. Magnetic blocks 22 are installed on both sides of the fixed column 6, attracting the placement plates 21. The limiting plates 24 are located above the placement plates 21. Threaded grooves are formed on the upper surface of the abutment blocks 26. Bolt 25 is threaded into the threaded groove. After the salmon eggs fall into the incubation box 4, the limiting bolt 25 is rotated to move away from the abutment block 26. Then, the placement plate 21 rotates along the hinge seat 20 under the action of gravity, so that the placement plate 21 is attracted to the magnetic block 22 on the fixing column 6. At this time, all the salmon eggs on the placement plate 21 fall into the incubation box 4 and are further scattered. At the same time, an oxygenator can be used to oxygenate the water in the outer box 1. The baffle 23 prevents the salmon eggs from sliding into the hinge seat 20.
[0035] Working principle: When using this salmon and trout egg hatching device, firstly, the salmon and trout eggs are placed on the placement plate 21. The dispersing fan 10 blows air onto the placement plate 21, which facilitates the initial dispersion of the salmon and trout eggs on the placement plate 21. Some of the salmon and trout eggs fall into the hatching box 4. After the salmon and trout eggs fall into the hatching box 4, the limiting bolt 25 is rotated to move the limiting bolt 25 away from the abutment block 26. Then, the placement plate 21 rotates along the hinge seat 20 under the action of gravity, so that the placement plate 21 is attracted to the magnetic block 22 on the fixing column 6. At this time, all the salmon and trout eggs on the placement plate 21 fall into the hatching box 4 for further dispersion. At the same time, an oxygenator can be used to oxygenate the water in the outer box 1. The baffle 23 prevents the salmon and trout eggs from sliding into the hinge seat 20.
[0036] The circulating water pump 15 is started. The inlet pipes 16 on both sides of the circulating water pump 15 are connected to the inside of the water tank 13, and the outlet pipe 17 is connected to the inside of the outer tank 1. Water in the water tank 13 is drawn into the circulating water pump 15 through the inlet pipes 16 and then discharged through the outlet pipes 17. The pressure nozzle 19 below the outlet pipe 17 sprays water onto the filter assembly 5 on the hatching box 4. The sprayed water provides dissolved oxygen for the fish eggs, ensuring that the fish eggs have the oxygen they need to breathe. On the other hand, the impact force of the water flow helps to further disperse the fish eggs, making the exchange of substances around the fish eggs more sufficient. When the water level in the water tank 13 is too high, the water can be discharged through the overflow pipe 18 to ensure that the water level in the water tank 13 is stable.
[0037] Simultaneously, the servo motor 8 is activated, driving the transmission shaft 9 to rotate via its output shaft. The transmission shaft 9 is connected to the fixed column 6, causing the fixed column 6 to rotate. The fixed column 6 then rotates the incubation box 4, facilitating the spray nozzles 19 to spray water into the incubation box 4 sequentially through the filter assembly 5. After hatching, the fish fry can be scooped out using a net, thus completing a series of tasks. Content not described in detail in this specification constitutes prior art known to those skilled in the art.
[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A salmon and trout egg hatching device, comprising an outer box (1) and an incubation box (4), wherein the incubation box (4) is mounted inside the outer box (1) via a rotating shaft (3), and a filter assembly (5) is mounted on the side of the incubation box (4), a fixing column (6) is mounted inside the incubation box (4), and a connecting strip (7) is mounted on the top of the outer box (1), characterized in that: The upper part of the fixed column (6) is provided with a transmission shaft (9), and the lower surface of the connecting strip (7) is provided with a dispersion fan (10); The left side of the outer box (1) is provided with a water tank (13), and the upper part of the water tank (13) is provided with a circulating water pump (15). The left upper part of the water tank (13) is provided with an overflow pipe (18). The left and right sides of the fixed column (6) are both provided with a placing plate (21) through a hinge seat (20), and the upper surface of the placing plate (21) is provided with a baffle (23). The left and right sides of the fixed column (6) are both provided with a limiting plate (24), and the limiting plate (24) is provided with a limiting bolt (25). The placing plate (21) is provided with an abutting block (26).
2. The salmon trout egg hatching device according to claim 1, characterized in that: The inner bottom of the outer box (1) is provided with a heating block (2), and the heating block (2) is designed in a waterproof structure. The lower part of the rotating shaft (3) is connected with the inner bottom of the outer box (1) through a bearing seat. The outer box (1) and the incubator (4) are both provided with a drainage assembly.
3. The salmon trout egg hatching device according to claim 1, characterized in that: The upper part of the connecting strip (7) is provided with a servo motor (8), and the upper part of the servo motor (8) is connected with the transmission shaft (9) through an output shaft.
4. The salmon trout egg hatching device according to claim 1, characterized in that: The dispersion fan (10) is provided with two, and the dispersion fan (10) is located above the placing plate (21). The right side of the outer box (1) is provided with a connecting seat (11), and the connecting seat (11) is provided with a daylight lamp assembly (12).
5. The salmon trout egg hatching device according to claim 4, characterized in that: The left and right sides of the circulating water pump (15) are respectively provided with an inlet pipe (16) and an outlet pipe (17). The inlet pipe (16) is connected with the inside of the water tank (13), and the outlet pipe (17) is connected with the inside of the outer box (1).
6. The salmon trout egg hatching device according to claim 1, characterized in that: The overflow pipe (18) is connected with the inside of the water tank (13), and the inside of the water tank (13) is provided with a filter screen (14). The filter screen (14) is located below the overflow pipe (18). The lower part of the outlet pipe (17) is provided with a pressure spray head (19), which sprays water to the filter screen assembly (5) on the incubator (4). The filter screen assembly (5) is detachably connected with the incubator (4).
7. The salmon trout egg hatching device according to claim 1, characterized in that: The left and right sides of the fixed column (6) are both provided with a magnetic block (22), which is adsorbed with the placing plate (21). The limiting plate (24) is located above the placing plate (21). The upper surfaces of the abutting blocks (26) are both provided with threaded grooves, and the limiting bolts (25) are threadedly connected with the threaded grooves.
Citation Information
Patent Citations
Roe incubation device
CN208159797U