An aquaculture egg incubator

Abstract

This utility model discloses a fish egg incubator for aquaculture, comprising an outer incubation cylinder and an inner incubation cylinder. A float is fixed to the outside of the outer incubation cylinder, and a flow-pushing component is installed at the bottom of the inner incubation cylinder, with a filter motor positioned above the flow-pushing component. An upper limit ring that mates with the outer incubation cylinder is located at the top of the inner incubation cylinder, and several lower limit rods that mate with the outer incubation cylinder are located at the bottom of the inner incubation cylinder. Several internal water inlets are located at the top of the inner incubation cylinder, and external water inlets that mate with the internal water inlets are located on the outer incubation cylinder and the float. Compared to existing pump-based micro-flow methods, this utility model produces a more stable and gentle micro-flow, and its structure is simpler, installation is more convenient, and it is more economical, making it widely applicable to fish egg incubation in aquaculture.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a fish egg incubator for aquaculture. Background Technology

[0002] Currently, in aquaculture, the hatching and rearing of fish fry are separate processes. The common practice is to first place fertilized eggs in a hatching pond with flowing water for incubation, and then transfer the hatched fry to outdoor ponds to be raised into marketable fry or directly raised into commercial fish. Flow-water hatching of fish eggs, as a new hatching method, "simulates nature and precisely controls" the process, satisfying the physiological needs of fish egg development while also considering aquaculture efficiency. It is currently the mainstream method in aquaculture breeding that offers "high cost-effectiveness and high reliability," suitable for the large-scale hatching of most freshwater fish.

[0003] Existing fish egg incubation devices typically use pumps and pipes to generate the micro-flow rate required for incubation. This method generally requires numerous and complex pipes with many connections, making installation cumbersome and economically inefficient. Examples include the circulating fish egg incubator in patent document CN222193699U and the fish fry incubator in CN219248923U. Therefore, this paper proposes a fish egg incubator for aquaculture that is simple in structure, easy to install, and more economical. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a fish egg incubator for aquaculture.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: an outer incubation cylinder, an inner incubation cylinder that can slide up and down is nested inside the outer incubation cylinder, a float is fixed to the outside of the outer incubation cylinder, a flow-pushing component is provided at the bottom of the inner incubation cylinder, and a filter screen is provided above the flow-pushing component; an upper limit ring that cooperates with the outer incubation cylinder is provided at the top of the inner incubation cylinder, and several lower limit rods that cooperate with the outer incubation cylinder are provided at the bottom of the inner incubation cylinder; several inner water inlets are provided at the top of the inner incubation cylinder, and outer incubation cylinder and float are provided with outer water inlet holes that cooperate with the inner water inlets.

[0006] Furthermore, when the lower limit rod contacts the bottom of the outer incubator cylinder, the inner water inlet hole and the outer water inlet hole are connected; when the upper limit ring contacts the top of the outer incubator cylinder, the inner water inlet hole and the outer water inlet hole are not connected.

[0007] Furthermore, the propulsion assembly includes a propulsion motor and a propulsion propeller fixed to the output end of the propulsion motor.

[0008] Furthermore, the outer incubation cylinder is provided with several vertical protrusions, and the outer side of the inner incubation cylinder is provided with vertical grooves that cooperate with the vertical protrusions.

[0009] Furthermore, the float can be a solid structure float or a hollow structure float.

[0010] Furthermore, a propulsion cylinder that works with the propulsion assembly is provided at the bottom of the outer incubator cylinder, and a bracket for installing the propulsion assembly is provided inside the propulsion cylinder.

[0011] Furthermore, the bottom of the incubation chamber is truncated cone-shaped.

[0012] Furthermore, it also includes a PLC controller, which is electrically connected to the push motor.

[0013] The beneficial effects of this utility model are as follows: This invention features an outer hatching cylinder containing a vertically movable inner hatching cylinder. A fixed float is positioned outside the outer hatching cylinder, allowing the entire fish egg incubator to float on the water surface. A flow-pushing component is located at the bottom of the inner hatching cylinder. When the component operates, the thrust generated raises the inner hatching cylinder, connecting its inner water inlet to the outer water inlet of the outer hatching cylinder. This allows the inner hatching cylinder to achieve a micro-flow rate in conjunction with the flow-pushing component, the inner water inlet, and the outer water inlet, facilitating the continuous water incubation of the fish eggs. When the flow-pushing component stops operating, it ceases to generate thrust, and the inner hatching cylinder descends under gravity. The inner water inlet then connects with the outer water inlet of the outer hatching cylinder, stopping the micro-flow rate and halting the continuous water incubation of the fish eggs.

[0014] Compared with existing pump-based microflow methods, this invention produces a more stable and gentle microflow, and its structure is simpler, easier to install, and more economical. It can be widely used in fish egg hatching in aquaculture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the present invention; The symbols for each component are as follows: 1. Outer hatching cylinder; 11. External water inlet; 2. Inner hatching cylinder; 21. Internal water inlet; 22. Upper limit ring; 23. Lower limit rod; 24. Flow propeller; 3. Float; 4. Filter screen; 5. Flow propeller motor; 6. Flow propeller. Detailed Implementation

[0016] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0017] like Figure 1 , 2 As shown in Figure 3, the fish egg incubator for aquaculture includes an outer incubation cylinder 1, inside which is a sliding inner incubation cylinder 2. A float 3 is fixed to the outside of the outer incubation cylinder 1. A flow propulsion assembly is provided at the bottom of the inner incubation cylinder 2, and a filter screen 4 is provided above the flow propulsion assembly. The flow propulsion assembly includes a flow propulsion motor 5 and a flow propulsion propeller 6 fixed to the output end of the flow propulsion motor 5. The flow propulsion motor 5, in conjunction with the flow propeller 6, generates an upward thrust, while simultaneously discharging the water inside the inner incubation cylinder 2 downwards. The direction of the water flow pushed out by the flow propeller 6 is downwards. An upper limit ring 22 that cooperates with the outer incubation cylinder 1 is provided at the top of the inner incubation cylinder 2, and several lower limit rods 23 that cooperate with the outer incubation cylinder 1 are provided at the bottom of the inner incubation cylinder 2. In this embodiment, two lower limit rods 23 are preferably provided. The inner incubator 2 has several internal water inlets 21 at its top, and the outer incubator 1 and float 3 have external water inlets 11 that cooperate with the internal water inlets 21. In this embodiment, it is preferable to have three internal water inlets 21 and three external water inlets 11. When the lower limiting rod 23 contacts the bottom of the outer incubator 1, the internal water inlets 21 and the external water inlets 11 are connected. When the upper limiting ring 22 contacts the top of the outer incubator 1, the internal water inlets 21 and the external water inlets 11 are not connected.

[0018] The outer incubation cylinder 1 is provided with several vertical protrusions, and the outer incubation cylinder 2 is provided with vertical grooves that cooperate with the vertical protrusions. In this embodiment, it is preferable to provide two vertical protrusions on the outer incubation cylinder 1. The vertical protrusions and vertical grooves can effectively prevent the inner incubation cylinder 2 from rotating relative to the outer incubation cylinder 1, thereby better ensuring the connection and alignment of the inner water inlet hole 21 and the outer water inlet hole 11.

[0019] Float 3 can be a solid structure float or a hollow structure float. Solid structure floats can be made of materials such as expanded polyethylene (EPE, commonly known as "pearl cotton"), rigid polyurethane foam (PU rigid foam), etc., while hollow structure floats can be made of materials such as high-density polyethylene (HDPE), polypropylene (PP, including modified PP), fiberglass (FRP, glass fiber reinforced plastic), etc.

[0020] The bottom of the inner incubator 2 is truncated cone-shaped. The bottom of the outer incubator 1 is provided with a propulsion cylinder 24 that cooperates with the propulsion component. The propulsion cylinder 24 is located at the truncated cone-shaped bottom of the inner incubator 2. A bracket for mounting the propulsion component is provided inside the propulsion cylinder 24, and the propulsion motor 5 is mounted on the bracket.

[0021] It also includes a PLC controller, which is electrically connected to the push motor 5. The PLC controller is used to control the power supply to the push motor 5, thereby controlling the start and stop operation of the push motor 5.

[0022] Working process and principle: When the propulsion motor 5 is working, the propulsion motor 5, together with the propulsion propeller 6, generates an upward thrust, causing the inner incubation tank 2 to move upward. When the lower limit rod 23 contacts the bottom of the outer incubation tank 1, the inner water inlet 21 and the outer water inlet 11 are connected. At this time, the propulsion component discharges the water inside the inner incubation tank 2 from the bottom. At the same time, after the inner water inlet 21 and the outer water inlet 11 are connected, the inner water inlet 21 and the outer water inlet 11, together with the propulsion component, realize the water flow in the inner incubation tank 2, so that the inner incubation tank 2 generates a micro-flow rate water flow, which is used to carry out the incubation operation of fish eggs. When the propulsion motor 5 stops working, the propulsion motor 5, together with the propulsion propeller 6, does not generate upward thrust. The inner incubator 2 moves downward under the action of gravity. When the upper limit ring 22 contacts the top of the outer incubator 1, the inner water inlet 21 and the outer water inlet 11 are not connected. At this time, the propulsion assembly stops the water inside the inner incubator 2 from being discharged from the bottom. At the same time, the inner water inlet 21 and the outer water inlet 11 are misaligned and disconnected. The inner water inlet 21 of the inner incubator 2 is not connected to the outside, so that the inner incubator 2 does not generate micro-flow rate water.

Claims

1. A fish egg incubator for aquaculture, characterized in that, It includes an outer incubation cylinder (1), an inner incubation cylinder (2) that can slide up and down is nested inside the outer incubation cylinder (1), a float (3) is fixed outside the outer incubation cylinder (1), a flow propulsion component is provided at the bottom of the inner incubation cylinder (2), and a filter screen (4) is provided above the flow propulsion component. The top of the inner incubator (2) is provided with an upper limit ring (22) that cooperates with the outer incubator (1), and the bottom of the inner incubator (2) is provided with a plurality of lower limit rods (23) that cooperate with the outer incubator (1). The top of the inner incubator (2) is provided with several inner water inlet holes (21), and the outer incubator (1) and the float (3) are provided with outer water inlet holes (11) that cooperate with the inner water inlet holes (21).

2. The fish egg incubator for aquaculture according to claim 1, characterized in that, When the lower limit rod (23) contacts the bottom of the hatching outer cylinder (1), the inner water inlet (21) and the outer water inlet (11) are connected; when the upper limit ring (22) contacts the top of the hatching outer cylinder (1), the inner water inlet (21) and the outer water inlet (11) are not connected.

3. The fish egg incubator for aquaculture according to claim 1, characterized in that, The propulsion assembly includes a propulsion motor (5) and a propulsion propeller (6) fixed at the output end of the propulsion motor (5).

4. The fish egg incubator for aquaculture according to claim 1, characterized in that, The outer incubation cylinder (1) is provided with several vertical protrusions, and the outer side of the inner incubation cylinder (2) is provided with a vertical groove that cooperates with the vertical protrusions.

5. The fish egg incubator for aquaculture according to claim 1, characterized in that, The float (3) is a solid structure float or a hollow structure float.

6. The fish egg incubator for aquaculture according to claim 1, characterized in that, The bottom of the incubation outer cylinder (1) is provided with a propulsion cylinder (24) that cooperates with the propulsion component, and a bracket for installing the propulsion component is provided inside the propulsion cylinder (24).

7. The fish egg incubator for aquaculture according to claim 1, characterized in that, The bottom of the incubation inner barrel (2) is truncated cone-shaped.

8. The fish egg incubator for aquaculture according to claim 3, characterized in that, It also includes a PLC controller, which is electrically connected to the push motor (5).

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