Fry hatching device
By introducing measures such as impeller stirring of water, oxygenation pump aeration, fine mesh partition design, ultraviolet disinfection and temperature control into the fish fry hatching device, the problems of low water exchange and uneven water flow have been solved, achieving efficient hatching and high-efficiency fish fry production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-17
AI Technical Summary
Existing fish fry hatching devices have low water exchange rates, limited egg release capacity, and poor water flow patterns, resulting in insufficient oxygen supply or localized egg accumulation, low hatching rates, and a high incidence of dead eggs and fry.
The system uses an impeller driven by a motor to agitate the water, an oxygen pump to aerate the water, a fine mesh screen and ultraviolet disinfection lamp inside the incubator, an electric heater and a thermostat to regulate the temperature, opaque plastic sheets and insulation pads for heat preservation, self-locking casters at the bottom for easy movement, and multiple partitions to improve space utilization.
It improved dissolved oxygen and water flow, enhanced the cleanliness and temperature control of the hatching environment, reduced the mortality rate of eggs and fry, met the needs of large-scale fish fry production, and improved hatching efficiency and space utilization.
Smart Images
Figure CN223994191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture equipment technology, and more specifically, to a fish fry hatching device. Background Technology
[0002] Fish fry hatching refers to the process of incubating fish eggs through a series of hatching operations, allowing them to further develop into independent fish fry. This is a crucial step in aquaculture, directly impacting the success of the breeding process, and also has significant applications in aquatic research and aquatic ecosystem restoration. Since its initial application in production, fish fry hatching equipment has undergone continuous improvement and refinement. However, existing fish fry hatching devices still have many shortcomings. For example, some devices have low water exchange rates, limiting the number of eggs that can be released, thus failing to meet the needs of large-scale fish fry production; some devices have poor water flow patterns, resulting in uneven water circulation, which can easily create dead zones, insufficient oxygen supply to fish eggs, or localized accumulation, leading to egg and fry sedimentation, dead eggs and fry, and low hatching rates.
[0003] In view of this, the present invention proposes a novel fish fry hatching device to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a fish fry hatching device that solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A fish fry hatching device includes a hatching tank. Top plates are fixed to both the left and right sides of the hatching tank. A drive motor is installed on each of the top plates on both sides. A drive shaft is fixedly connected to the output end of each drive motor. The lower end of the drive shaft extends into the bottom of the hatching tank and is equipped with an impeller for stirring the water and promoting water flow. A cover plate is provided between the two sets of top plates. An oxygen pump is also installed on the left top plate. An oxygenation hose is connected to the output end of the oxygen pump. The end of the oxygenation hose extends into the hatching tank and is equipped with an air disc for evenly distributing oxygen. An incubation box is located in the center of the incubation pool. The bottom of the incubation box is fixedly connected to the bottom of the incubation pool via a wire mesh frame. A fine wire mesh is fixedly installed on the bottom surface of the incubation box, and the diameter of the mesh openings is smaller than the diameter of the fish eggs to be incubated. A horizontal partition is fixedly installed in the center of the incubation box. Multiple sets of vertical partitions are evenly fixed on both sides of the horizontal partition. The internal space of the incubation box is divided into multiple parts by the horizontal and vertical partitions. Two sets of electric heaters are installed on each of the left and right sides of the incubation pool. A temperature controller is installed on the front of the incubation pool and is electrically connected to the electric heaters.
[0007] Furthermore, ultraviolet disinfection lamps are installed on the inner walls of the incubation pools on both the front and rear sides of the incubation box.
[0008] Furthermore, the incubator is made of opaque plastic sheet.
[0009] Furthermore, the outer ring surface of the incubation pool is covered with a layer of heat-insulating pad.
[0010] Furthermore, multiple sets of self-locking casters are symmetrically installed at the bottom of the incubation pool.
[0011] Furthermore, a light-transmitting plate with a U-shaped structure is embedded in the cover plate, and multiple sets of ventilation slots are opened on the left side of the cover plate.
[0012] Furthermore, the cover plate is bent downwards on both the front and rear sides to form a right-angle structure, and two sets of handles are also installed on the upper surface of the cover plate.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This utility model uses two sets of impellers driven by a drive motor to simultaneously stir the water in the hatching tank from both sides, increasing the dissolved oxygen content of the water and promoting uniform water flow. This keeps the water in a flowing state, providing a flowing water environment for the hatching of fish eggs and effectively preventing insufficient oxygen supply or local accumulation of fish eggs.
[0015] 2. In this utility model, a fine mesh plate is fixed to the bottom surface of the incubation box, and the diameter of the mesh is smaller than the diameter of the fish eggs to be incubated, to prevent the fish eggs from leaking out, while allowing water to flow normally into the incubation box. A horizontal partition is fixed to the center of the incubation box, and multiple sets of vertical partitions are evenly fixed to both sides of the horizontal partition. The internal space of the incubation box is divided into multiple parts by the horizontal and vertical partitions. This design can incubate multiple sets of fish eggs at the same time, improving incubation efficiency and space utilization, and can meet the needs of large-scale fish fry production.
[0016] 3. In this invention, ultraviolet (UV) disinfection lamps are installed on the inner walls of the incubation pools on both the front and rear sides of the incubation box. These UV lamps emit ultraviolet light, which has a powerful bactericidal ability and can effectively kill various bacteria, viruses, and microorganisms in the water. During the incubation process, some microorganisms harmful to fish eggs may exist in the water. The presence of UV disinfection lamps can greatly reduce the number of these microorganisms, providing a cleaner and safer incubation environment for the fish eggs. By killing harmful microorganisms in the water, UV disinfection lamps can reduce the risk of infection of fish eggs during incubation, helping to reduce the incidence of dead eggs and fry, thereby improving the overall hatching rate.
[0017] 4. The incubation box in this utility model is made of opaque plastic board. The opaque plastic board can effectively block the light generated by the ultraviolet disinfection lamp, prevent the fish eggs from being exposed to ultraviolet radiation and causing dead eggs, and ensure the normal hatching of the fish eggs.
[0018] 5. In this utility model, multiple sets of self-locking casters are symmetrically installed at the bottom of the incubation pool. The self-locking casters allow the incubation device to move easily between different locations, improving the flexibility of the incubation device and enabling it to adapt to different production needs and site conditions. At the same time, the self-locking casters can separate the bottom of the incubation pool from the ground, preventing the bottom of the incubation pool from contacting the ground, thereby reducing heat exchange between the bottom of the incubation pool and the ground, and further improving the heat preservation effect of the incubation pool.
[0019] 6. The cover plate of this utility model can cover the top of the hatching pool to prevent external interference, while also enabling heat exchange between the water inside the hatching pool and the external environment, reducing heat loss from the water and improving the heat preservation performance of the hatching pool. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the incubation pool in this utility model.
[0022] Figure 3 This is a top view of the incubation pool in this utility model.
[0023] Figure 4 This is a partial cross-sectional view of the incubation pool in this utility model.
[0024] Figure 5 This is a schematic diagram of the incubator in this utility model.
[0025] Figure 6 This is a schematic diagram of the cover plate in this utility model.
[0026] In the diagram: 1. Drive motor; 2. Cover plate; 21. Light-transmitting plate; 22. Handle; 23. Ventilation slot; 3. Insulation pad; 4. Thermostat; 5. Hatching pool; 6. Hatching box; 7. Top plate; 8. Self-locking casters; 9. Ultraviolet disinfection lamp; 10. Aeration pump; 11. Oxygenation hose; 12. Electric heater; 13. Air coil; 14. Mesh frame; 15. Drive shaft; 16. Impeller; 17. Fine mesh plate; 18. Longitudinal partition; 19. Transverse partition. Detailed Implementation
[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0028] Example:
[0029] like Figures 1 to 6As shown, a fish fry hatching device includes a hatching pool 5 for containing water and a hatching box 6. Top plates 7 are fixedly installed on both sides of the top of the hatching pool 5, providing mounting support for components such as drive motors 1 and oxygen pumps 10. Drive motors 1 are installed on both top plates 7. Drive shafts 15 are fixedly connected to the output ends of the drive motors 1. The lower ends of the drive shafts 15 extend into the interior of the hatching pool 5 near the bottom, and are equipped with impellers 16 for stirring the water and promoting water flow. These impellers stir the water, increase dissolved oxygen levels, and promote water flow, maintaining a flowing environment for the hatching of fish eggs. Between the two sets of top plates 7... The area is equipped with a cover plate 2 to cover the top of the hatching pond 5, preventing external interference and facilitating heat exchange between the water inside the hatching pond 5 and the external environment, reducing heat loss and improving the heat preservation performance of the hatching pond 5. An oxygen pump 10 is also installed on the top plate 7 on the left side, and an oxygenation hose 11 is connected to the output end of the oxygen pump 10. The end of the oxygenation hose 11 extends into the hatching pond 5 and is equipped with an air plate 13 for evenly distributing oxygen, increasing the dissolved oxygen level in the water, and promoting the hatching and development of fish eggs. An incubation box 6 is located in the middle of the hatching pond 5, and the bottom of the incubation box 6 is fixed to the bottom of the hatching pond 5 by a wire mesh frame 14. A fine mesh plate 17 is fixedly installed on the bottom surface of the incubator 6, with the mesh diameter of the fine mesh plate 17 being smaller than the diameter of the fish eggs to be incubated, to prevent the fish eggs from leaking out while allowing water to flow normally into the incubator 6. A horizontal partition 19 is fixedly installed at the center of the incubator 6, and multiple sets of vertical partitions 18 are evenly fixed on both sides of the horizontal partition 19. The internal space of the incubator 6 is divided into multiple parts by the horizontal partition 19 and the vertical partitions 18. This design can incubate multiple groups of fish eggs at the same time, improving incubation efficiency and space utilization, and can meet the needs of large-scale fish fry production. Two sets of electric... The heater 12 is used to regulate the water temperature and can adjust the water temperature as needed to provide a suitable incubation environment for fish eggs. A thermostat 4 is installed on the front side of the incubation tank 5. The thermostat 4 is electrically connected to the electric heater 12 to achieve precise temperature control and ensure the stability of the incubation process. This design solves the problems of existing fish fry incubation devices, such as small water exchange volume and limited egg release capacity, which cannot meet the needs of large-scale fish fry production; poor water flow movement and uneven water circulation in some devices, which can easily cause dead water flow, insufficient oxygen supply to fish eggs or local accumulation, resulting in the settling of eggs and fry, dead eggs and fry, and low hatching rate.
[0030] In this embodiment, ultraviolet (UV) disinfection lamps 9 are installed on the inner walls of the hatching pools 5 on both the front and rear sides of the hatching box 6. These UV lamps emit ultraviolet light, which has a powerful bactericidal ability and can effectively kill various bacteria, viruses, and microorganisms in the water. During the hatching process, some microorganisms harmful to fish eggs may exist in the water. The presence of the UV disinfection lamps 9 can significantly reduce the number of these microorganisms, providing a cleaner and safer hatching environment for the fish eggs. By killing harmful microorganisms in the water, the UV disinfection lamps 9 can reduce the risk of infection for the fish eggs during hatching, helping to reduce the incidence of dead eggs and fry, thereby improving the overall hatching rate.
[0031] In this embodiment, the incubator 6 is made of opaque plastic sheet. The opaque plastic sheet can effectively block the light generated by the ultraviolet disinfection lamp 9, prevent the fish eggs from being exposed to ultraviolet light and causing dead eggs, and ensure the normal hatching of the fish eggs.
[0032] In this embodiment, an insulating pad 3 is placed on the outer ring surface of the hatching tank 5. The insulating pad 3 has excellent heat insulation properties, effectively reducing heat exchange between the water in the hatching tank 5 and the external environment, thus improving the heat insulation effect of the hatching tank 5. When the external temperature fluctuates, the insulating pad 3 acts as a heat insulation layer, slowing down the rate of change in water temperature, thereby maintaining a relatively stable temperature within the hatching tank 5. Due to the heat insulation effect of the insulating pad 3, the water temperature in the hatching tank 5 is more stable, reducing the operating frequency and time of the electric heater 12. This not only reduces energy consumption but also extends the service life of the electric heater 12, improving the energy efficiency and economy of the entire hatching device.
[0033] In this embodiment, multiple sets of self-locking casters 8 are symmetrically installed at the bottom of the incubation pool 5. These casters allow the incubation device to move easily between different locations. Whether moving from the production area to the incubation area or transferring between different incubation stages, this can be achieved through the casters, improving the flexibility of the incubation device and enabling it to adapt to different production needs and site conditions. Simultaneously, the self-locking casters 8 allow the bottom of the incubation pool 5 to separate from the ground, preventing contact between the bottom of the incubation pool 5 and the ground, thereby reducing heat exchange between the bottom of the incubation pool 5 and the ground, further improving the heat preservation effect of the incubation pool 5.
[0034] In this embodiment, a light-transmitting plate 21 with a U-shaped structure is embedded in the cover plate 2. The light-transmitting plate 21 with the U-shaped structure allows light from the external environment to enter the hatching pool 5, while preventing direct irradiation of the fish eggs in the hatching box 6. This provides a suitable low-light environment for the hatching of fish eggs and reduces the impact of light on the hatching of fish eggs. Multiple sets of ventilation slots 23 are opened on the left side of the cover plate 2. The multiple sets of ventilation slots 23 can ventilate the inside of the hatching pool 5, which is beneficial to the development and hatching of fish eggs.
[0035] In this embodiment, the cover plate 2 is bent downward on both the front and rear sides to form a right-angle structure. The right-angle structure can increase the tightness of the connection between the cover plate 2 and the hatching pool 5, and position the cover plate 2 to prevent it from falling off due to collision. Two sets of handles 22 are also installed on the upper surface of the cover plate 2. The design of the two sets of handles 22 makes it convenient for operators to open and close the cover plate 2.
[0036] The working principle of this fish fry incubation device:
[0037] The incubator 6 is divided into multiple sections by horizontal partitions 19 and vertical partitions 18, allowing for the simultaneous incubation of multiple groups of fish eggs, thus improving incubation efficiency and space utilization. The bottom of the incubator 6 is fixedly connected to the bottom of the incubation pool 5 via a mesh frame 14. A fine mesh 17 prevents fish eggs from leaking out while allowing water to flow normally into the incubator 6. The drive motor 1 rotates the impeller 16 via the drive shaft 15, stirring the water in the incubation pool 5 and promoting water flow. This flow not only increases the dissolved oxygen level in the water but also provides a flowing environment for the fish eggs, which is beneficial for hatching. The oxygen pump 10 evenly injects oxygen into the water through the oxygenation hose 11 and air disc 13, further increasing the dissolved oxygen level and promoting the hatching and development of the fish eggs. The electric heater 12, based on the settings of the thermostat 4, regulates the temperature of the water in the incubation pool 5, providing a suitable incubation environment for the fish eggs. The thermostat 4 is electrically connected to the electric heater 12, achieving precise temperature control and ensuring the stability of the incubation process. Ultraviolet (UV) disinfection lamps 9 are installed on the inner walls of the hatching pools 5 on both the front and rear sides of the hatching box 6. They emit UV rays to kill various bacteria, viruses, and microorganisms in the water, providing a cleaner and safer hatching environment for the fish eggs. The hatching box 6 is made of opaque plastic sheeting, effectively blocking the light emitted by the UV disinfection lamps 9, preventing the fish eggs from dying due to UV exposure, and ensuring normal hatching. A layer of insulation pad 3 covers the outer ring of the hatching pool 5, reducing heat exchange between the water in the hatching pool 5 and the external environment, and improving the insulation effect of the hatching pool 5. Multiple sets of self-locking casters 8 are symmetrically installed at the bottom of the hatching pool 5, separating the bottom of the hatching pool 5 from the ground, further reducing heat exchange and improving the insulation effect. These casters also facilitate the movement of the entire device, increasing flexibility.
[0038] In summary, this fish fry hatching device provides a suitable hatching environment for fish eggs through the synergistic effects of multiple aspects, including water circulation and oxygenation, temperature control, hatching box 6 design, ultraviolet disinfection, light protection, heat preservation performance, lighting and ventilation, and cover plate 2 design. This improves hatching efficiency and space utilization, and meets the needs of large-scale fish fry production.
[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A fish larvae hatching device comprising a hatching tank (5), characterized in that: The incubation tank (5) top left and right sides are both fixed with top plate (7), both sides of the top plate (7) are equipped with drive motor (1), the drive motor (1) output end is fixedly connected with drive shaft (15), the drive shaft (15) lower end extends into the incubation tank (5) inside near the bottom position, and its upper assembly is used for stirring water body to promote water body flow impeller (16), the area between the two groups of top plate (7) is equipped with cover plate (2), the left side of the top plate (7) is also equipped with oxygenation pump (10), the oxygenation pump (10) output end is connected with oxygen hose (11), the oxygen hose (11) end extends into the incubation tank (5) inside and its upper installation is used for uniform distribution of oxygen gas disc (13), the incubation tank (5) inside middle position is equipped with incubation box (6), the incubation box (6) bottom is fixedly connected with the incubation tank (5) bottom through net frame (14), the incubation box (6) bottom surface is fixed with a layer of fine mesh (17), and the fine mesh (17) mesh diameter is less than the diameter of the fish eggs to be hatched, the incubation box (6) inside center position is fixed with horizontal baffle (19), the horizontal baffle (19) both sides are evenly fixed with multiple longitudinal baffle (18), the incubation box (6) inside space is divided into multiple parts by horizontal baffle (19) and longitudinal baffle (18), the incubation tank (5) inside left and right sides are each equipped with two groups of electric heater (12), the incubation tank (5) front side is equipped with temperature controller (4), the temperature controller (4) is electrically connected with electric heater (12).
2. The fish hatchery device of claim 1, wherein: The incubation tank (5) inside wall on the left and right sides of the incubation tank (5) is equipped with ultraviolet disinfection lamp (9).
3. The fish hatchery device of claim 1, wherein: The incubation tank (5) is made of lightproof plastic plate.
4. The fish hatchery device of claim 1, wherein: The incubation tank (5) outer ring surface is covered with a layer of heat preservation pad (3).
5. The fish hatchery device of claim 1, wherein: The incubation tank (5) bottom is symmetrically equipped with multiple self-locking universal wheels (8).
6. The fish hatchery device of claim 1, wherein: The cover plate (2) is embedded with light transmission plate (21) of meander structure, and a plurality of air vent slots (23) are formed on the left side of the cover plate (2).
7. The fish hatchery device of claim 6, wherein: The cover plate (2) is bent downward to form a right angle structure, and two groups of handles (22) are installed on the upper surface of the cover plate (2).