Largemouth bass hatching device and use method thereof

Abstract

The invention discloses a largemouth bass hatching device and a method for using the device, comprising a cylinder, a central support tube is provided at the bottom center of the cylinder, a plurality of conical fish egg hatching structures are stacked on the central support tube, the conical fish egg hatching structure comprises a conical cover, a plurality of clip structures are provided on the conical cover, a sheet fish egg carrier is embedded in the clip structure, an upper joint is provided at the outer top of the conical cover, and a conical inner sleeve is provided at the inner top, a bearing riser is embedded in the conical inner sleeve, the bearing risers of different conical fish egg hatching structures are coaxial and form a vertical water supply pipeline, and a water spraying structure is provided on the bearing riser. The invention directly uses the sheet fish egg carrier to avoid the fish egg damage caused by taking out and processing the fish eggs for the second time, and the plurality of sheet fish egg carriers are sequentially installed in the conical cover of the conical fish egg hatching structure, and the plurality of conical fish egg hatching structures are sequentially stacked together to form a three-dimensional structure, which can save the occupied area, improve the utilization efficiency of the hatching water body, and reduce energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of aquatic hatching equipment, and in particular to a largemouth bass hatching equipment and a use method thereof. Background Art

[0002] Largemouth bass, commonly known as California bass, has a short growth cycle, very delicate meat, and no intramuscular spines. It is very popular in the domestic market. The starting point of largemouth bass breeding is hatching. The current conventional hatching measures are to let the broodstock ovulate on sheet-like fish egg carriers such as palm leaves and soft foam sheets, and then hang the palm leaves in a hatching pool with prepared water for hatching. This method occupies a large area of ​​water, and the hatching water environment that needs to be prepared is quite energy-consuming. Alternatively, the fish eggs are collected and placed in a hatching bucket with a special fish egg carrier for hatching. For example, Chinese patent (CN113424784B) discloses a fish egg hatching method. The invention relates to a combined spiral core incubator, which mainly provides a combined spiral core, so as to increase or decrease the spiral pieces in the combined spiral core according to the hatching amount, and the spiral pieces in the combined spiral core can well carry the fish eggs, and facilitate the oxygen-rich water to flow down along the spiral pieces, which can provide a good carrier and water oxygen for the fish eggs. At the same time, an incubator is also provided to adapt to the combined spiral core. The whole incubator adopts the nested combined spiral core method, which can provide a good incubation environment for the fish eggs, and the lower end water outlet structure is set, which can facilitate the flow and circulation of the water body and the release of the fry from the hatching bucket after hatching. However, since the eggs of largemouth black bass are sticky, it is easy to cause the eggs to be damaged when they are collected and processed, which requires high operation technology. Therefore, we focus on the use of existing sheet-shaped fish egg carriers to avoid removing them from the sheet-shaped fish egg carriers for processing again, and make full use of the three-dimensional structure. We have specially developed a largemouth black bass hatching equipment, and determined two methods of use according to the characteristics of this equipment. Summary of the invention

[0003] In order to overcome the technical problems described in the above-mentioned background technology, the present invention provides a largemouth black bass hatching device and a method of using the same. Focusing on the sticky characteristics of largemouth black bass eggs, flaky fish egg carriers are directly used to avoid secondary removal and processing of the fish eggs and causing damage to the fish eggs. Multiple flaky fish egg carriers are sequentially installed in the conical cover of the conical fish egg hatching structure and evenly distributed. Multiple conical fish egg hatching structures are stacked up and down in sequence to form a three-dimensional structure, which can make full use of space, save occupied area, improve hatching water utilization efficiency, and reduce energy consumption.

[0004] The technical solution of the present invention is:

[0005] A largemouth bass hatching device comprises a sheet-shaped fish egg carrier, a cylinder, a central support tube and a conical fish egg hatching structure. A vertically extending central support tube is provided at the bottom center of the cylinder. A plurality of conical fish egg hatching structures are stacked on the central support tube from bottom to top. The conical fish egg hatching structure comprises a conical cover, a fish egg carrier, a supporting vertical tube, a conical inner sleeve, a clip structure and a water spray structure. A plurality of clip structures evenly distributed around the axis of the conical cover are provided on the inner side wall of the conical cover. A sheet-shaped fish egg carrier is embedded in the clip structure so that the plane where the sheet-shaped fish egg carrier is located and the axis of the conical cover can be aligned. The conical cover is located in the same vertical plane, the outer top of the conical cover is provided with an upper joint and the inner top of the conical cover is provided with a conical inner sleeve, a vertical support pipe extending vertically downward is embedded in the conical inner sleeve, the support pipes of different conical fish egg hatching structures are coaxial and form a vertical water supply pipeline, the lower end of the support pipe of the upper conical fish egg hatching structure of two adjacent conical fish egg hatching structures is embedded in the upper joint of the lower conical fish egg hatching structure, the lower end of the support pipe of the lowest conical fish egg hatching structure is embedded in the upper end of the central support pipe, and a water spraying structure is provided on the support pipe.

[0006] Furthermore, the sheet-shaped fish egg carrier comprises a fish egg carrier sheet, a carrying frame and a locking connecting piece. The fish egg carrier sheet is located in the rectangular carrying frame and the edge is connected to the carrying frame through a plurality of locking connecting pieces.

[0007] Furthermore, the clip structure includes a limiting clip, an opening sleeve and a limiting block. The side wall of the opening sleeve away from the inner wall of the conical cover is provided with a notch for embedding the frame of the supporting frame close to the conical cover. Both ends of the opening sleeve are respectively provided with limiting clips in a U-shaped structure. The opening of the limiting clip and the notch of the opening sleeve are in the same direction. The limiting clip is used to clamp the frame of the supporting frame tilted downward and limiting blocks are respectively provided on both sides of the opening. The limiting blocks are used to constrain the supporting frame to tilt and slide down and separate from the conical cover.

[0008] Furthermore, the cylinder includes an upper cylinder, a connecting plate, a drainage structure, a connecting locking structure and a lower cylinder. The bottom of the upper cylinder is provided with a circular connecting plate extending horizontally outward, and the connecting plate is provided with a drainage structure. The lower cylinder is nested at the edge of the connecting plate and a connecting locking structure is provided between the lower cylinder and the lower cylinder. The inner diameter of the lower cylinder is larger than the inner diameter of the upper cylinder.

[0009] Furthermore, the drainage structure includes a drainage pipe and a drainage filter. The drainage pipe passes through the connecting plate from top to bottom and is provided with a drainage filter at the lower end inside the lower cylinder. The end of the drainage pipe outside the cylinder is connected to a water pump. The water outlet of the water pump is connected to a water inlet conduit, and the water inlet conduit is connected to the top of the vertical water supply pipe.

[0010] Furthermore, there is a gap between the inner wall of the cylinder and the edge of the conical cover, so that the hatched largemouth black bass fry enter the lower cylinder through the gap along with the water flow.

[0011] Furthermore, a hard central air pipe is vertically embedded in the vertical water supply pipeline, and each supporting riser in the vertical water supply pipeline is provided with an internal supporting frame for clamping the central air pipe. The portion of the supporting riser below the water spray structure is provided with an aeration ring, and the aeration ring is provided with a branch air pipe. The branch air pipe seal passes through the supporting riser and is connected to the central air pipe.

[0012] Furthermore, the bottom of the central air pipe extends into the central support pipe and the bottom is embedded and sealed by a lower embedding plug.

[0013] A method for using a largemouth bass hatching device comprises the following steps:

[0014] S1, placing the lower cylinder on a flat hard ground, embedding a load-bearing riser on the central support tube, nesting a conical cover on the upper end of the load-bearing riser, and sequentially embedding a plurality of sheet-shaped fish egg carriers with largemouth black bass eggs in the clip structure on the inner wall of the conical cover, so that the plurality of sheet-shaped fish egg carriers are evenly distributed around the axis of the conical cover, and thus sequentially installing a plurality of conical fish egg hatching structures from bottom to top;

[0015] S2, after all the conical fish egg hatching structures are installed, the upper cylinder is nested from top to bottom on the outside of the plurality of conical fish egg hatching structures, and the joint plate at the lower end of the upper cylinder is sealed and buckled on the lower cylinder and locked with the lower cylinder by a joint locking structure;

[0016] S3, connecting the water inlet and outlet of the water pump to the drainage pipe and the water inlet conduit respectively, and connecting the water inlet conduit to the upper end of the vertical water supply pipe;

[0017] S4, pour the prepared hatching water from the upper end of the upper cylinder into the lower cylinder until the water level reaches the bottom of the upper cylinder, start the water pump, the hatching water enters the drain pipe from the drainage filter on the joint plate, is pumped into the water inlet conduit via the water pump, and then enters the vertical water supply pipe via the water inlet conduit, and the water spray structure on each load-bearing riser in the vertical water supply pipe sprays water to the flaky fish egg carrier to hatch;

[0018] S5. After the hatching is completed, the water pump is turned off, the fry are gathered in the lower cylinder, and the upper cylinder and each conical fish egg hatching structure are disassembled in turn, so that the hatched largemouth black bass fry can be easily taken out.

[0019] A method for using a largemouth bass hatching device comprises the following steps:

[0020] S1, placing the lower cylinder on a flat hard ground, embedding a load-bearing riser on the central support tube, embedding an aeration ring on the load-bearing riser, and embedding a conical cover on the upper end of the load-bearing riser, the surface of the conical cover is evenly distributed with micropores that are breathable but not passed by largemouth black bass eggs or fry, and embedding a plurality of sheet-like fish egg carriers with largemouth black bass eggs in the clip structure on the inner wall of the conical cover in sequence, so that the plurality of sheet-like fish egg carriers are evenly distributed around the axis of the conical cover, and thus a plurality of conical fish egg hatching structures are installed in sequence from bottom to top;

[0021] S2, after the conical fish egg hatching structure is fully installed, the central air pipe with a lower embedded plug at the bottom is inserted into the vertical water supply pipe from top to bottom, and the aeration ring in each conical fish egg hatching structure is communicated with the central air pipe through the branch air pipe respectively, and the upper end of the central air pipe is communicated with the oxygenation fan through the air supply pipe;

[0022] S3, nesting the upper cylinder from top to bottom on the outside of the plurality of conical fish egg hatching structures, the joint plate at the lower end of the upper cylinder is sealed and buckled on the lower cylinder and locked with the lower cylinder by a joint locking structure;

[0023] S4, connecting the water inlet and outlet of the water pump to the drainage pipe and the water inlet conduit respectively, and connecting the water inlet conduit to the upper end of the vertical water supply pipe;

[0024] S5, pouring the prepared hatching water from the upper end of the upper cylinder into the lower cylinder until the water level submerges all the conical fish egg hatching structures, starting the water pump and the aeration fan, the hatching water enters the drain pipe from the drainage filter on the joint plate, is pumped into the water inlet conduit through the water pump, and then enters the vertical water supply pipe through the water inlet conduit, and the water spray structures on each load-bearing riser in the vertical water supply pipe are discharged into the corresponding conical fish egg hatching structure, and finally, the air from the aeration fan reaches each aeration ring through the air supply pipe, the central air pipe and each branch air pipe in turn, aerates each conical fish egg hatching structure, and starts hatching;

[0025] S6. After the hatching is completed, the oxygen enrichment fan is turned off first, the water inlet conduit is disconnected from the vertical water supply pipe and placed at the external drainage facility, so that the water pump pumps out the water in the cylinder until the water level in the cylinder drops below the joint plate, the water pump is turned off, the fry gather in the lower cylinder, and the upper cylinder and each conical fish egg hatching structure are disassembled in turn, so that the hatched largemouth black bass fry can be easily taken out.

[0026] Due to the adoption of the above technology, the present invention has the following specific positive and beneficial effects compared with the prior art:

[0027] 1. The present invention focuses on the sticky characteristics of largemouth black bass eggs, directly uses a sheet-shaped fish egg carrier, avoids secondary removal and processing of fish eggs to cause damage to the fish eggs, and sequentially installs a plurality of sheet-shaped fish egg carriers into a conical cover of a conical fish egg hatching structure and evenly distributes them. A plurality of conical fish egg hatching structures are sequentially stacked up and down to form a three-dimensional structure, which can make full use of space, save occupied area, improve hatching water utilization efficiency, and reduce energy consumption.

[0028] 2. The support riser of the conical fish egg hatching structure of the present invention serves as a water supply structure. A water spray structure and an aeration ring are provided on the support riser, which can spray water to form a water circulation, and can also perform aeration and oxygenation. Thus, two methods of use can be formed, namely, a water sprinkling method and a water bath method. The use is flexible and convenient, and the corresponding method of use can be selected according to needs.

[0029] 3. The present invention arranges the cylinder body into an upper cylinder body and a lower cylinder body, and the inner diameter of the lower cylinder body is larger than the inner diameter of the upper cylinder body, that is, the upper cylinder body is slender and the lower cylinder body is short and thick. Such a structure is conducive to the upper cylinder body to give full play to the advantages of the three-dimensional structure formed by multiple conical fish egg hatching structures, improve the utilization efficiency of space and hatching water body, reduce energy consumption, and also facilitate the lower cylinder body to load the hatched fry, avoid stacking many fry up and down together, and after the upper cylinder body is disassembled from the lower cylinder body, it is convenient to take out the fry.

[0030] 4. The present invention arranges a drainage pipe on the joint plate covering the lower cylinder, and a drainage filter is provided at the end of the drainage pipe in the lower cylinder. Compared with arranging the drainage pipe on the bottom and side wall of the lower cylinder, it can reduce the disturbance of the fry falling on the bottom of the lower cylinder, and can prevent the fry from escaping and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the present invention after cutting;

[0033] Figure 3 It is a schematic diagram of the structure of a plurality of conical fish egg hatching structures of the present invention stacked together;

[0034] Figure 4 yes Figure 3 a top view of the structure shown;

[0035] Figure 5 yes Figure 4 Sectional view at AA in the middle;

[0036] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0037] Figure 7It is a structural schematic diagram of a single conical fish egg hatching structure of the present invention;

[0038] Figure 8 yes Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0039] In the figure: 1, top support frame, 2, water inlet conduit, 3, upper cylinder, 4, water pump, 5, drainage pipe, 6, lower locking plate, 7, lower cylinder, 8, joint plate, 9, upper locking plate, 10, oxygen enrichment fan, 11, air supply pipe, 12, central air pipe, 13, drainage filter, 14, central support pipe, 15, fish egg carrier, 16, conical cover, 17, upper joint, 18, inner support frame, 19, drainage hole, 20, aeration ring, 21, branch air pipe, 22, load-bearing riser, 23, limit clip, 24, load-bearing frame, 25, lower embedded plug, 26, open sleeve, 27, limit block, 28, locking link, 29, cone inner sleeve, 30, reinforcement rib. DETAILED DESCRIPTION Embodiment 1:

[0040] like Figure 1-Figure 8As shown, the present invention provides a largemouth bass hatching device, which mainly includes a sheet fish egg carrier, a cylinder, a top support frame 1, a central support tube 14 and a conical fish egg hatching structure. The bottom center of the cylinder is provided with a vertically extending central support tube 14, and a plurality of conical fish egg hatching structures are stacked on the central support tube 14 from bottom to top. The conical fish egg hatching structure includes a conical cover 16, a fish egg carrier 15, a supporting standpipe 22, a conical inner sleeve 29, a clip structure and a water spraying structure. The inner side wall of the conical cover 16 is provided with a plurality of A plurality of clip structures are evenly distributed around the axis of the conical cover 16, a sheet-like fish egg carrier is embedded in the clip structure so that the plane where the sheet-like fish egg carrier is located and the axis of the conical cover 16 can be in the same vertical plane, an upper joint 17 is provided on the outer top of the conical cover 16, and a cone inner sleeve 29 is provided on the inner top, a reinforcing rib 30 is provided between the cone inner sleeve 29 and the corresponding inner wall of the conical cover 16, a vertically downwardly extending bearing standpipe 22 is embedded in the cone inner sleeve 29, and different bearing standpipes of the conical fish egg hatching structure are provided. The pipes 22 are coaxial and form a vertical water supply pipeline. The lower end of the supporting standpipe 22 of the upper conical fish egg hatching structure of the two adjacent conical fish egg hatching structures is embedded in the upper joint 17 of the conical fish egg hatching structure below. The lower end of the supporting standpipe 22 of the conical fish egg hatching structure at the bottom is embedded in the upper end of the central support pipe 14. A top supporting frame 1 for supporting multiple conical fish egg hatching structures to stand up is provided between the outer top of the conical fish egg hatching structure at the top and the inner wall of the upper cylinder 3. The supporting standpipe 22 is provided with a drainage hole 19 or a water spraying structure such as a nozzle. In this way, based on the sticky characteristics of largemouth black bass eggs, a sheet-like fish egg carrier is directly used to avoid secondary removal and processing of fish eggs and causing damage to the fish eggs. Multiple sheet-like fish egg carriers are sequentially installed in the conical cover 16 of the conical fish egg hatching structure and evenly distributed. Multiple conical fish egg hatching structures are stacked up and down in sequence to form a three-dimensional structure, which can make full use of space, save occupied area, improve hatching water utilization efficiency, and reduce energy consumption.

[0041] like Figure 6 As shown, the sheet-like fish egg carrier includes a fish egg carrier 15, a supporting frame 24 and a locking connecting piece 28. The fish egg carrier 15 is located in the rectangular supporting frame 24 and the edge is connected to the supporting frame 24 through multiple locking connecting pieces 28. The fish egg carrier 15 can be a palm sheet, a soft foam sheet or a soft sponge sheet, etc.

[0042] like Figure 6 and Figure 8As shown, the clip structure includes a limiting clip 23, an opening sleeve 26 and a limiting block 27. The side wall of the opening sleeve 26 away from the inner wall of the conical cover 16 is provided with a notch for the frame of the supporting frame 24 close to the conical cover 16 to be embedded. Both ends of the opening sleeve 26 are respectively provided with a limiting clip 23 in a U-shaped structure. The opening of the limiting clip 23 and the notch of the opening sleeve 26 are in the same direction. The limiting clip 23 is used to clamp the frame of the supporting frame 24 tilted downward and limiting blocks 27 are respectively provided on both sides of the opening. The limiting blocks 27 are used to constrain the supporting frame 24 to tilt and slide down and separate from the conical cover 16.

[0043] like Figure 1 and Figure 2 As shown, the cylinder includes an upper cylinder 3, a connecting plate 8, a drainage structure, a connecting locking structure and a lower cylinder 7. A circular connecting plate 8 extending horizontally outward is provided at the bottom of the upper cylinder 3. The connecting plate 8 is provided with a drainage structure. The lower cylinder 7 is nested at the edge of the connecting plate 8 and a connecting locking structure is provided between the lower cylinder 7. The inner diameter of the lower cylinder 7 is larger than the inner diameter of the upper cylinder 3, that is, the upper cylinder 3 is slender and the lower cylinder 7 is short and thick. Such a structure is conducive to the upper cylinder 3 to give full play to the advantages of the three-dimensional structure formed by multiple conical fish egg hatching structures, improve the utilization efficiency of space and hatching water, and reduce energy consumption. At the same time, it is also conducive to the lower cylinder 7 to load the hatched fry, avoid stacking many fry up and down, and after the upper cylinder 3 is removed from the lower cylinder 7, it is convenient to take out the fry.

[0044] like Figure 1 As shown, the engaging and locking structure includes a lower locking plate 6, an upper locking plate 9 and bolts. The lower locking plate 6 and the upper locking plate 9 are respectively arranged on the top of the outer wall of the lower cylinder 7 and the edge of the upper end surface of the engaging plate 8. The lower locking plate 6 and the corresponding upper locking plate 9 are connected together by bolt locking. Of course, the engaging and locking structure can also be a structure such as a snap-on structure for easy disassembly. In short, it can relatively fix the engaging plate 8 and the lower cylinder 7 and facilitate disassembly.

[0045] like Figure 2 As shown, the drainage structure includes a drainage pipe 5 and a drainage filter 13. The drainage pipe 5 passes through the connecting plate 8 from top to bottom and is provided with a drainage filter 13 at the lower end in the lower cylinder 7. The outer shell of the drainage filter 13 has 1mm-2mm micropores to prevent the entry of fry. The end of the drainage pipe 5 outside the cylinder is connected with a water pump 4. The water outlet of the water pump 4 is connected with an inlet conduit 2. The inlet conduit 2 is connected with the top of the vertical water supply pipe. Compared with arranging the drainage pipe 5 on the bottom and side wall of the lower cylinder 7, the disturbance to the fry falling on the bottom of the lower cylinder 7 can be reduced, and the escape and damage of the fry can be prevented.

[0046] like Figure 2As shown, there is a gap between the inner wall of the cylinder and the edge of the conical cover 16, and the gap size is set to be about 10mm-50mm, so that the hatched largemouth black bass fry enter the lower cylinder 7 from the gap with the water flow. It is best that the gap is filled with water, so that the water flow will slide down along the inner wall of the upper cylinder 3, instead of falling directly downward because the gap is too large, because falling directly downward is likely to cause damage to the hatched fry.

[0047] The corresponding method of use is the water sprinkling method, which includes the following steps:

[0048] S1, placing the lower cylinder 7 on a flat hard ground, embedding a load-bearing riser 22 on the central support tube 14, nesting a conical cover 16 on the upper end of the load-bearing riser 22, and sequentially embedding a plurality of sheet-like fish egg carriers with largemouth black bass eggs in the clip structure on the inner wall of the conical cover 16, so that the plurality of sheet-like fish egg carriers are evenly distributed around the axis of the conical cover 16, and thus a plurality of conical fish egg hatching structures are sequentially installed from bottom to top;

[0049] S2, after all the conical fish egg hatching structures are installed, the upper cylinder 3 is nested from top to bottom on the outside of the multiple conical fish egg hatching structures, and the joint plate 8 at the lower end of the upper cylinder 3 is sealed and buckled on the lower cylinder 7 and locked with the lower cylinder 7 by the joint locking structure;

[0050] S3, the water inlet and outlet of the water pump 4 are connected to the drain pipe 5 and the water inlet conduit 2 respectively, and the water inlet conduit 2 is connected to the upper end of the vertical water supply pipe;

[0051] S4, pouring the prepared hatching water from the upper end of the upper cylinder 3 into the lower cylinder 7 until the water level reaches the bottom of the upper cylinder 3, starting the water pump 4, the hatching water enters the drain pipe 5 from the drainage filter 13 on the joint plate 8, is pumped into the water inlet conduit 2 through the water pump 4, and then enters the vertical water supply pipeline through the water inlet conduit 2, and the water spraying structures on each load-bearing riser 22 in the vertical water supply pipeline spray water to the sheet-like fish egg carrier for hatching;

[0052] S5, after the hatching is completed, the water pump 4 is turned off, the fry gather in the lower cylinder 7, and the upper cylinder 3 and each conical fish egg hatching structure are disassembled in sequence, so that the largemouth black bass fry after hatching can be conveniently taken out. Embodiment 2:

[0053] like Figure 5As shown, on the basis of the first embodiment, a hard central air pipe 12 is vertically embedded in the vertical water supply pipe, and each supporting riser 22 in the vertical water supply pipe is provided with an inner support frame 18 for clamping the central air pipe 12, and the portion of the supporting riser 22 below the water spraying structure is provided with an aeration ring 20, and the aeration ring 20 is provided with a branch air pipe 21, which seals and penetrates the supporting riser 22 and is connected with the central air pipe 12, and the bottom of the central air pipe 12 extends into the central support pipe 14 and is embedded and sealed by a lower embedding plug 25, and at the same time, the surface of the conical cover 16 is evenly distributed with micropores (1mm-2mm) that are breathable but not passed through by largemouth black bass eggs or fry, so that the gas of the aeration ring 20 can pass upward through the conical cover 16 and be discharged from the upper end opening of the upper cylinder 3.

[0054] The corresponding method of use is a water bath method, comprising the following steps:

[0055] S1, placing the lower cylinder 7 on a flat hard ground, embedding a load-bearing riser 22 on the central support tube 14, embedding an aeration ring 20 on the load-bearing riser 22, and embedding a conical cover 16 on the upper end of the load-bearing riser 22, and sequentially embedding a plurality of sheet-like fish egg carriers with largemouth black bass eggs in the clip structure on the inner wall of the conical cover 16, so that the plurality of sheet-like fish egg carriers are evenly distributed around the axis of the conical cover 16, and thus sequentially installing a plurality of conical fish egg hatching structures from bottom to top;

[0056] S2, after all the conical fish egg hatching structures are installed, the central air pipe 12 with the lower embedded plug 25 at the bottom is inserted into the vertical water supply pipe from top to bottom, and the aeration ring 20 in each conical fish egg hatching structure is connected to the central air pipe 12 through the branch air pipe 21 respectively, and the upper end of the central air pipe 12 is connected to the oxygen enrichment fan 10 through the air supply pipe 11;

[0057] S3, the upper cylinder 3 is nested from top to bottom on the outside of the multiple conical fish egg hatching structures, and the joint plate 8 at the lower end of the upper cylinder 3 is sealed and buckled on the lower cylinder 7 and locked with the lower cylinder 7 by the joint locking structure;

[0058] S4, connect the water inlet and outlet of the water pump 4 to the drain pipe 5 and the water inlet conduit 2 respectively, and connect the water inlet conduit 2 to the upper end of the vertical water supply pipe;

[0059] S5, pour the prepared hatching water from the upper end of the upper cylinder 3 into the lower cylinder 7 until the water level submerges all the conical fish egg hatching structures, start the water pump 4 and the oxygenation fan 10, the hatching water enters the drain pipe 5 from the drainage filter 13 on the joint plate 8, is pumped into the water inlet conduit 2 through the water pump 4, and then enters the vertical water supply pipe through the water inlet conduit 2. The water spray structures on each load-bearing riser 22 in the vertical water supply pipe are discharged into the corresponding conical fish egg hatching structure. Finally, the air from the oxygenation fan 10 reaches each aeration ring 20 through the air supply pipe 11, the central air pipe 12 and each branch air pipe 21 in turn, aerates each conical fish egg hatching structure, and starts hatching.

[0060] S6. After the hatching is completed, the oxygen enrichment fan 10 is turned off first, the water inlet conduit 2 is disconnected from the vertical water supply pipe and placed at the external drainage facility, so that the water pump 4 pumps out the water in the cylinder until the water level in the cylinder drops below the joint plate 8, the water pump 4 is turned off, the fry gather in the lower cylinder 7, and the upper cylinder 3 and each conical fish egg hatching structure are disassembled in turn, so that the largemouth black bass fry after hatching can be conveniently taken out.

Claims

1. A largemouth bass hatching device, comprising a sheet-shaped fish egg carrier and a cylinder, characterized in that: The invention also comprises a central support tube (14) and a conical fish egg hatching structure. A central support tube (14) extending vertically is provided at the bottom center of the cylinder body. A plurality of conical fish egg hatching structures are stacked on the central support tube (14) from bottom to top. The conical fish egg hatching structure comprises a conical cover (16), a fish egg carrier (15), a support vertical tube (22), a conical inner sleeve (29), a clip structure and a water spray structure. A plurality of clip structures evenly distributed around the axis of the conical cover (16) are provided on the inner side wall of the conical cover (16). A sheet-like fish egg carrier is embedded in the clip structure so that the plane where the sheet-like fish egg carrier is located and the axis of the conical cover (16) are located in the same vertical plane. The top of the outer side of the shaped cover (16) is provided with an upper joint (17) and the top of the inner side is provided with a conical inner sleeve (29), a vertically downwardly extending support riser (22) is embedded in the conical inner sleeve (29), the support risers (22) of different conical fish egg hatching structures are coaxial and form a vertical water supply pipeline, the lower end of the support riser (22) of the upper conical fish egg hatching structure of two adjacent conical fish egg hatching structures is embedded in the upper joint (17) of the lower conical fish egg hatching structure, the lower end of the support riser (22) of the lowermost conical fish egg hatching structure is embedded in the upper end of the central support pipe (14), and a water spraying structure is provided on the support riser (22).

2. A largemouth bass hatching device according to claim 1, characterized in that: The sheet-shaped fish egg carrier comprises a fish egg carrier (15), a carrying frame (24) and a locking connecting piece (28). The fish egg carrier (15) is located in the rectangular carrying frame (24) and its edge is connected to the carrying frame (24) via a plurality of locking connecting pieces (28).

3. A largemouth bass hatching device according to claim 2, characterized in that: The clip structure comprises a limiting clip (23), an opening sleeve (26) and a limiting block (27); a side wall of the opening sleeve (26) away from the inner wall of the conical cover (16) is provided with a notch for the frame of the carrying frame (24) close to the conical cover (16) to be embedded; both ends of the opening sleeve (26) are respectively provided with a limiting clip (23) in a U-shaped structure; the opening of the limiting clip (23) and the notch of the opening sleeve (26) are oriented in the same direction; the limiting clip (23) is used to clamp the frame of the carrying frame (24) tilted downward, and limiting blocks (27) are respectively provided on both sides of the opening; the limiting blocks (27) are used to restrict the carrying frame (24) from tilting and sliding down and leaving the conical cover (16).

4. A largemouth bass hatching device according to claim 3, characterized in that: The cylinder comprises an upper cylinder (3), a connecting plate (8), a drainage structure, a connecting locking structure and a lower cylinder (7); a circular connecting plate (8) extending horizontally and outwardly divergently is provided at the bottom of the upper cylinder (3); the connecting plate (8) is provided with the drainage structure; the lower cylinder (7) is nested at the edge of the connecting plate (8) and a connecting locking structure is provided between the connecting plate (8) and the lower cylinder (7); the inner diameter of the lower cylinder (7) is larger than the inner diameter of the upper cylinder (3).

5. A largemouth bass hatching device according to claim 4, characterized in that: The drainage structure comprises a drainage pipe (5) and a drainage filter (13); the drainage pipe (5) passes through the joint plate (8) from top to bottom and is provided with a drainage filter (13) at the lower end thereof located in the lower cylinder (7); the end of the drainage pipe (5) located outside the cylinder is connected to a water pump (4); the water outlet of the water pump (4) is connected to a water inlet conduit (2); and the water inlet conduit (2) is connected to the top of a vertical water supply pipe.

6. A largemouth bass hatching device according to claim 5, characterized in that: There is a gap between the inner wall of the cylinder and the edge of the conical cover (16), so that the hatched largemouth bass fry can flow into the lower cylinder (7) through the gap.

7. A largemouth bass hatching device according to claim 5, characterized in that: A hard central air pipe (12) is vertically embedded in the vertical water supply pipeline. An internal support frame (18) for clamping the central air pipe (12) is provided in each supporting riser (22) in the vertical water supply pipeline. An aeration ring (20) is provided on the portion of the supporting riser (22) below the water spraying structure. A branch air pipe (21) is provided on the aeration ring (20). The branch air pipe (21) seals and penetrates the supporting riser (22) and is connected to the central air pipe (12).

8. A largemouth bass hatching device according to claim 7, characterized in that: The bottom of the central air pipe (12) extends into the central support pipe (14) and the bottom is embedded and sealed by a lower embedding plug (25).

9. A method for using a largemouth bass hatching device, using the largemouth bass hatching device according to claim 6, characterized in that: The following steps are involved: S1, placing the lower cylinder (7) on a flat hard ground, embedding a load-bearing standpipe (22) on the central support tube (14), embedding a conical cover (16) on the upper end of the load-bearing standpipe (22), and sequentially embedding a plurality of sheet-shaped fish egg carriers with largemouth black bass eggs in the clip structure on the inner wall of the conical cover (16), so that the plurality of sheet-shaped fish egg carriers are evenly distributed around the axis of the conical cover (16), and sequentially installing a plurality of conical fish egg hatching structures from bottom to top; S2, after all the conical fish egg hatching structures are installed, the upper cylinder (3) is nested from top to bottom on the outer sides of the plurality of conical fish egg hatching structures, and the joint plate (8) at the lower end of the upper cylinder (3) is sealed and buckled onto the lower cylinder (7) and locked with the lower cylinder (7) by a joint locking structure; S3, connecting the water inlet and outlet of the water pump (4) to the drainage pipe (5) and the water inlet conduit (2) respectively, and connecting the water inlet conduit (2) to the upper end of the vertical water supply pipe; S4, pouring the prepared hatching water from the upper end of the upper cylinder (3) into the lower cylinder (7) until the water level reaches the bottom of the upper cylinder (3), starting the water pump (4), and the hatching water enters the drain pipe (5) from the drainage filter (13) on the joint plate (8), is pumped into the water inlet conduit (2) through the water pump (4), and then enters the vertical water supply pipe through the water inlet conduit (2), and the water spraying structures on each support riser (22) in the vertical water supply pipe spray the water onto the flaky fish egg carrier for hatching; S5. After the hatching is completed, the water pump (4) is turned off, the fry are gathered in the lower cylinder (7), and the upper cylinder (3) and each conical fish egg hatching structure are disassembled in turn, so that the hatched largemouth black bass fry can be easily taken out.

10. A method for using a largemouth bass hatching device, using the largemouth bass hatching device according to claim 7, characterized in that: The following steps are involved: S1, placing the lower cylinder (7) on a flat hard ground, embedding a load-bearing riser (22) on the central support tube (14), embedding an aeration ring (20) on the load-bearing riser (22), and embedding a conical cover (16) on the upper end of the load-bearing riser (22), wherein the surface of the conical cover (16) is evenly distributed with micro-holes that are breathable but not passed through by largemouth black bass eggs or fry, and embedding a plurality of sheet-shaped fish egg carriers carrying largemouth black bass eggs in the clip structure on the inner wall of the conical cover (16) in sequence, so that the plurality of sheet-shaped fish egg carriers are evenly distributed around the axis of the conical cover (16), and thus a plurality of conical fish egg hatching structures are installed in sequence from bottom to top; S2, after all the conical fish egg hatching structures are installed, a central air pipe (12) with a lower insert plug (25) at the bottom is inserted from top to bottom into the vertical water supply pipe, and the aeration ring (20) in each conical fish egg hatching structure is connected to the central air pipe (12) through the branch air pipe (21) respectively, and the upper end of the central air pipe (12) is connected to the oxygen enrichment fan (10) through the air supply pipe (11); S3, the upper cylinder (3) is nested from top to bottom on the outer sides of the plurality of conical fish egg hatching structures, and the joint plate (8) at the lower end of the upper cylinder (3) is sealed and buckled onto the lower cylinder (7) and locked with the lower cylinder (7) by a joint locking structure; S4, connecting the water inlet and outlet of the water pump (4) to the drainage pipe (5) and the water inlet conduit (2) respectively, and connecting the water inlet conduit (2) to the upper end of the vertical water supply pipe; S5, pouring the prepared hatching water from the upper end of the upper cylinder (3) into the lower cylinder (7) until the water level submerges all the conical fish egg hatching structures, starting the water pump (4) and the oxygenating fan (10), the hatching water enters the drain pipe (5) from the drainage filter (13) on the joint plate (8), is pumped into the water inlet conduit (2) through the water pump (4), and then enters the vertical water supply pipe through the water inlet conduit (2), and is discharged into the corresponding conical fish egg hatching structure through the water spraying structure on each supporting riser (22) in the vertical water supply pipe. Finally, the air from the oxygenating fan (10) passes through the air supply pipe (11), the central air pipe (12) and each branch air pipe (21) in turn to reach each aeration ring (20), aerates each conical fish egg hatching structure, and hatching begins; S6. After the hatching is completed, the oxygenating fan (10) is turned off first, the water inlet conduit (2) is disconnected from the vertical water supply pipe and placed at an external drainage facility, so that the water pump (4) pumps out the water in the cylinder until the water level in the cylinder drops below the joint plate (8), the water pump (4) is turned off, the fry are gathered in the lower cylinder (7), and the upper cylinder (3) and each conical fish egg hatching structure are disassembled in turn, so that the hatched largemouth black bass fry can be easily taken out.

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