Mystus macropterus fertilized egg hatching device

Abstract

The utility model discloses a mystus macropterus fertilized egg hatching device which comprises a support and a hatching barrel with the bottom in an inverted cone shape, a plurality of overflow pipes are arranged on the side wall of the hatching barrel, a splitter plate, an annular nanometer oxygenation disc and a water supply pipe are fixedly connected to the center of the bottom of the hatching barrel, and the splitter plate is located above the annular nanometer oxygenation disc and the water supply pipe. The annular nanometer oxygenation disc is communicated with oxygen supply equipment through an oxygen inlet pipe and provided with a water penetrating hole penetrating through the annular nanometer oxygenation disc vertically, one end of a water supply pipe is communicated with a pipe opening I of a three-way pipe, a pipe opening II of the three-way pipe is communicated with a water source through a water inlet pipe, a pipe opening III of the three-way pipe is communicated with a water drainage pipe, and the pipe opening I is located between the pipe opening II and the pipe opening III. Regulating valves are arranged on the oxygen inlet pipe, the water inlet pipe, the drain pipe and the overflow pipe. Compared with the prior art, the hatching barrel has the advantages that fertilized eggs are not prone to being damaged, the water depth of the hatching barrel can be adjusted, the fertilized eggs are prevented from being stacked and bonded, and the hatching rate of the fertilized eggs is increased.

Description

Technical Field

[0001] This utility model belongs to the field of aquaculture equipment technology, specifically relating to a hatching device for fertilized eggs of the giant finned mandarin fish. Background Technology

[0002] The giant catfish, also known as the river rat or stone flathead catfish, belongs to the family Bagridae and the genus *Ctenopharynx*. It is a freshwater fish mainly distributed in rivers and lakes south of the Yangtze River. Due to its rich protein content, tender flesh, few bones, and delicious flavor, it has always been popular with consumers. However, in recent years, due to the ten-year fishing ban in the Yangtze River and restrictions on fishing in many natural waters, the number of wild giant catfish available for sale in the market has decreased significantly. To meet market demand, artificial breeding of giant catfish has begun. Because giant catfish fertilized eggs are adhesive, during incubation, the fertilized eggs easily adhere to each other, forming a clump-like structure. This leads to some fertilized eggs not receiving enough oxygen or water and dying, greatly reducing the hatching rate and posing a challenge to the artificial breeding of giant catfish.

[0003] To address the aforementioned issues, Chinese utility model patent CN201721624061.0 discloses a fish fry hatching tank, comprising a tank body with an overflow port on the upper side wall and an opening at the bottom. A three-way pipe connects to the opening, with its other two ports connected to an inlet pipe and an outlet pipe, respectively. A water pump is mounted on the inlet pipe. This utility model utilizes the upward flow of hatching water to propel fertilized eggs from the bottom upwards, preventing them from piling up and sticking together, thus improving the hatching rate. However, this technical solution has the following drawbacks during use: 1. Impact damage: The water flow generated by the pump has a strong impact, and the fertilized eggs are relatively fragile. The direct impact of the water flow can easily cause the fertilized eggs to rupture or even die, especially when the pump power is high or improperly configured. 2. Fixed water depth in the incubation tank: This utility model only has an overflow port on the side wall of the tank. As new incubation water continuously enters from the water inlet pipe, the water depth in the incubation tank is fixed at the overflow port, and it is impossible to freely adjust the water depth of the incubation tank according to the number of fertilized eggs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hatching device for fertilized eggs of the giant finned ...

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hatching device for fertilized eggs of the large-finned tadpole, including a support frame and a hatching barrel with an inverted cone-shaped bottom. The hatching barrel is supported by the support frame and suspended in the air. The characteristic feature is that the side wall of the hatching barrel has several overflow ports from top to bottom, each overflow port is equipped with an overflow pipe and an escape-prevention net. The mesh size of the escape-prevention net is smaller than the size of a single fertilized egg. A diversion plate, a ring-shaped nano-oxygenation disc, and a water supply pipe are fixedly connected to the center of the bottom of the hatching barrel. The diversion plate is located above the ring-shaped nano-oxygenation disc and the water supply pipe, and the diversion plate divides... The size of the flow hole is smaller than that of a single fertilized egg. The annular nano oxygenation disc is connected to the oxygen supply equipment through the oxygen inlet pipe. The annular nano oxygenation disc has water perforations running through it from top to bottom. The water supply pipe connects the inside and outside of the incubation tank. The end of the water supply pipe located outside the incubation tank is connected to port I of the three-way pipe. Port II of the three-way pipe is connected to the water source through the water inlet pipe. Port III of the three-way pipe is connected to the drain pipe. Port I is located between port II and port III. The oxygen inlet pipe, water inlet pipe, drain pipe, and overflow pipe are all equipped with regulating valves.

[0006] Preferably, the bottom of the incubation tank is provided with an installation tank, and the diversion plate, the annular nano oxygenation disc and the water supply pipe are installed inside the installation tank.

[0007] Preferably, the installation bucket and the incubation bucket are threaded together.

[0008] Preferably, the water supply pipe is inserted into the water inlet, and its opening is flush with the top of the annular nano-oxygenation disc.

[0009] Preferably, the overflow pipe and the drain pipe are connected.

[0010] Preferably, the flow divider is a circular perforated flow divider.

[0011] Preferably, the annular nano-oxygenation disk is semi-enclosed.

[0012] Preferably, the bottom of the incubation bucket forms a 45-degree angle with the horizontal plane.

[0013] Preferably, the regulating valve is a solenoid valve.

[0014] The usage and principle of this utility model are as follows: When incubating fertilized eggs of the giant finned ...

[0015] The eggs of the largefin takin are demersal and will settle at the bottom of the incubation tank. The bottom of the incubation tank is designed with an inverted cone shape, which helps to concentrate the fertilized eggs in the center of the tank. A water supply pipe is located in the center of the bottom. After the incubation water flows out of the water supply pipe, it passes through the water inlet and the diversion plate, and finally forms a gentle and uniform upward water flow. The fertilized eggs accumulated in the center of the tank are gradually floated upward by the upward water flow, then slowly sink, and then gather back to the center of the tank to continue to float upward. This continuous cycle keeps the fertilized eggs active and prevents them from accumulating at the bottom of the incubation tank due to prolonged stillness. The fertilized eggs are prone to die from oxygen deprivation due to adhesion between the fertilized parts. The diversion plate greatly evens out the water flow and reduces the impact of the incubation water. The small and dense bubbles generated by the annular nano oxygenation disc achieve efficient oxygenation while minimizing physical impact on the fertilized eggs. At the same time, when the water level in the incubation tank rises to a certain height, the old incubation water is discharged through the overflow pipe, while new incubation water continuously enters through the water supply pipe, achieving timely replacement of the incubation water in the incubation tank. The installation of several overflow pipes with regulating valves allows for free adjustment of the incubation water depth according to the number of fertilized eggs, thereby saving water.

[0016] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, is not easy to damage fertilized eggs, can freely adjust the water depth of the incubation tank, prevents fertilized eggs from piling up and sticking together, and improves the hatching rate of fertilized eggs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the installed barrel;

[0019] The following are the labels in the attached diagram: 1. Support frame; 2. Hatching bucket; 3. Overflow pipe; 4. Installation bucket; 5. Diverter plate; 6. Annular nano oxygenation disc; 7. Water supply pipe; 8. T-joint pipe; 9. Water inlet pipe; 10. Drainage pipe; 11. Regulating valve; 12. Oxygen inlet pipe. Detailed Implementation

[0020] Example 1, in conjunction with the following Figure 1 and Figure 2 The present invention will be further described below.

[0021] The incubation device for fertilized eggs of the largefin tamarinus includes a support frame 1 and an incubation trough 2 with an inverted cone-shaped bottom. The incubation trough is supported and suspended by the support frame, which is made of stainless steel or similar materials. The bottom of the incubation trough forms a 45-degree angle with the horizontal plane. Several overflow outlets are provided on the side wall of the incubation trough from top to bottom, and each overflow outlet is equipped with an overflow pipe 3. To prevent fertilized eggs from flowing out of the overflow outlets, an escape-proof net is also installed at the overflow outlets. The escape-proof net is completely covered by the overflow outlets and is installed on the side wall inside the incubation trough. The escape-proof net is sewn to a plastic or lightweight metal frame, and then the frame is fixed to the side wall inside the incubation trough using fasteners such as clips. The mesh of the escape-proof net is... The size is smaller than that of a single fertilized egg to ensure that the fertilized egg cannot pass through the escape net. A mounting bucket 4 is threaded to the center of the bottom of the incubation bucket. Inside the mounting bucket are fixed a diversion plate 5, a ring-shaped nano-oxygenation disc 6, and a water supply pipe 7. The diversion plate is a circular perforated diversion plate with perforations smaller than the size of a single fertilized egg. The diversion plate is located above the ring-shaped nano-oxygenation disc and the water supply pipe, with its bottom contacting the top of the ring-shaped nano-oxygenation disc. A clip is fixed to the top of the mounting bucket, securing the diversion plate and the ring-shaped nano-oxygenation disc inside the mounting bucket. The ring-shaped nano-oxygenation disc is connected to the oxygen supply equipment via an oxygen inlet pipe 12. A connection hole is provided on the incubation tank. The oxygen inlet pipe enters the incubation tank through the connection hole to connect with the annular nano-oxygenation disc. The annular nano-oxygenation disc can be semi-enclosed and has a water perforation hole running through it from top to bottom. A through hole is provided at the bottom of the installation tank. One end of the water supply pipe enters the installation tank through this through hole. To avoid impacting the annular nano-oxygenation disc, the water supply pipe is inserted into the water perforation hole, with its opening flush with the top of the annular nano-oxygenation disc. The water supply pipe connects the inside and outside of the incubation tank. The end of the water supply pipe located outside the incubation tank is connected to the pipe port I of the three-way pipe 8. The pipe port II of the three-way pipe is connected to the water source through the water inlet pipe 9. Pipe port III is connected to the water tank via drain pipe 10. Preferably, all overflow pipes are connected to the drain pipe. The water tank is connected to the water source through a purification system. Pipe port I is located between pipe port II and pipe port III. Each of the oxygen inlet pipe, water inlet pipe, drain pipe, and overflow pipe is equipped with a regulating valve 11. To save manpower and reduce the labor intensity of employees, the regulating valve is a solenoid valve. The solenoid valve is electrically connected to the automatic control system. The regulating valves on the oxygen inlet pipe, water inlet pipe, drain pipe, and overflow pipe can be adjusted through the automatic control system. The incubation tank is also equipped with basic equipment necessary for incubation, such as temperature control equipment.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hatching device for fertilized eggs of the large-finned wrasse, comprising a support frame (1) and a hatching bucket (2) with an inverted cone-shaped bottom, the hatching bucket being supported by the support frame and suspended in the air, characterized in that, The side wall of the incubation tank has several overflow ports from top to bottom. Each overflow port is equipped with an overflow pipe (3) and an escape net. The size of the escape net is smaller than that of a single fertilized egg. A diversion plate (5), a ring-shaped nano oxygenation plate (6), and a water supply pipe (7) are fixedly connected to the center of the bottom of the incubation tank. The diversion plate is located above the ring-shaped nano oxygenation plate and the water supply pipe. The size of the diversion hole on the diversion plate is smaller than that of a single fertilized egg. The ring-shaped nano oxygenation plate is connected to the oxygen supply equipment through the oxygen inlet pipe (12). The ring-shaped nano oxygenation plate is provided with a water through hole running through its top and bottom. The water supply pipe connects the inside and outside of the incubation tank. The end of the water supply pipe located outside the incubation tank is connected to the port I of the three-way pipe (8). The port II of the three-way pipe is connected to the water source through the water inlet pipe (9). The port III of the three-way pipe is connected to the drain pipe (10). The port I is located between the port II and the port III. The oxygen inlet pipe, the water inlet pipe, the drain pipe, and the overflow pipe are all equipped with regulating valves (11).

2. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The bottom of the incubation tank is equipped with an installation tank (4), and the diversion plate, the annular nano oxygenation plate and the water supply pipe are installed inside the installation tank.

3. The incubation device for fertilized eggs of the giant finned bream according to claim 2, characterized in that, The installation bucket and the hatching bucket are connected by threads.

4. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The water supply pipe is inserted into the water inlet, and its opening is flush with the top of the annular nano oxygenation disc.

5. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The overflow pipe and the drain pipe are connected.

6. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The diverter plate is a circular perforated diverter plate.

7. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The aforementioned annular nano-oxygenation disk is semi-enclosed.

8. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The bottom of the incubation bucket forms a 45-degree angle with the horizontal plane.

9. The incubation device for fertilized eggs of the giant finned bream according to claim 1, characterized in that, The regulating valve is a solenoid valve.

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