A wild basketfish catching device

Abstract

This invention discloses a wild basketfish trapping device, belonging to the field of aquaculture technology. It includes a net cage and a float fixedly connected to the upper part of the net cage by a hollow traction rope. A fixing plate embedded in the upper surface of the net cage is fixedly connected to the bottom end of the hollow traction rope. A mesh cylinder inside the net cage is threadedly connected to the bottom surface of the fixing plate. A fish-attracting light is fixedly connected to the bottom surface of the fixing plate. In this invention, the fish-attracting light better lures the basketfish. Simultaneously, the water flow carries the solidified slow-release algae bait placed inside the mesh cylinder into the net cage, further luring the basketfish into the cage. An air pump inflates the annular rubber air bladder, causing the buoyancy generated by the expansion of the air bladder to rise, facilitating the retrieval of the cage and ensuring a smooth, uniform buoyancy. This reduces the impact and stress caused by the cage tipping over during a forceful pull.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture technology, and in particular relates to a wild basket fish catching device. Background Technology

[0002] Wild basketfish are warm-water, euryhaline nearshore fish that mainly inhabit coral reefs, rocky reef slopes, mixed reef and sand areas, mangrove estuaries, and intertidal zones in inner bays. They forage both day and night and have venomous spines on their dorsal and anal fins. They have a high mortality rate after stress or mutual stinging.

[0003] Existing traditional basketfish catching devices rely solely on algae to attract fish, resulting in poor overall effectiveness and difficulty in continuously drawing basketfish into the cage. Furthermore, the retrieval process relies solely on dragging the cage, which can easily cause the cage to tilt or tip over due to uneven force. Since basketfish have venomous spines on their dorsal fins, pulling them forcefully can also cause the cage to tip over, leading to stress. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing basket fish catching devices are ineffective at attracting fish and rely solely on dragging and pulling the cage, which can easily cause the cage to tilt or overturn due to uneven force, thus causing stress. Therefore, this invention proposes a wild basket fish catching device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A wild basketfish catching device includes a net cage, a fish-attracting mechanism, and a fish-collecting mechanism; The fish-attracting mechanism includes a first motor, a piston cylinder, a fixed plate, and a fish-attracting lamp. An eccentric wheel is fixedly connected to the output end of the first motor. A piston rod slidably connected inside the piston cylinder of the eccentric wheel abuts against and pushes the piston rod to reciprocate inside the piston cylinder. The fixed plate is embedded in the upper surface of the net cage. A mesh cylinder for slow release is provided inside the net cage and threadedly connected to the bottom surface of the fixed plate. The fish-attracting lamp is fixedly connected to the bottom surface of the fixed plate. A protective upper shell is fixedly connected to the upper surface of the fixed plate. A telescopic spring with a reset function is fixedly connected to the inner wall of both piston cylinders. One piston cylinder is connected to the inside of the mesh cylinder through a first one-way valve, and the other piston cylinder is connected to the annular nozzle provided outside the fish-attracting lamp through a second one-way valve. A third one-way valve for one-way water inlet is fixedly connected to the outer surface of both piston cylinders. The fish-catching mechanism includes a hollow traction rope and a float. The bottom end of the hollow traction rope is fixedly connected to a fixed plate. The float is fixedly connected to the upper part of the net cage through the hollow traction rope. An air pump fixedly connected to the upper surface of the float is connected to an annular rubber airbag set outside the net cage for providing buoyancy and upward movement.

[0006] As a further description of the above technical solution: The outer surface of the piston rod is rotatably connected to the ball bearings that abut against the eccentric wheel, and the piston rod is slidably connected to the through-hole of the upper shell. The eccentric wheel does not contact the inner wall of the upper shell, and the output end of the first motor is rotatably connected to the through-hole of the upper shell.

[0007] As a further description of the above technical solution: The end of the telescopic spring away from the inner wall of the piston cylinder is fixedly connected to the piston rod. The filter screen at the inlet end of the third one-way valve is engaged with the piston cylinder. The outlet end of the third one-way valve is connected to the interior of the piston cylinder.

[0008] As a further description of the above technical solution: The annular nozzle is fixedly connected to the bottom surface of the fixed plate. The inlet ends of the first one-way valve and the second one-way valve are both connected to the inside of the piston cylinder. The outlet end of the first one-way valve is connected to the inside of the mesh cylinder. The outlet end of the second one-way valve is connected to the inside of the annular nozzle. The outlet end of the annular nozzle is inclined toward the outer surface of the fish-attracting lamp.

[0009] As a further description of the above technical solution: A water collection box is fixedly connected to the lower part of the outer surface of the net cage. The annular rubber airbag is fixedly connected to the lower part of the outer surface of the water collection box. The threaded rubber plug connected to the outer surface of the annular rubber airbag extends into the interior of the annular rubber airbag. The pressure-resistant hose fixedly connected to the output end of the air pump extends into the interior of the hollow traction rope. The lower end of the pressure-resistant hose is connected to the interior of the annular rubber airbag.

[0010] As a further description of the above technical solution: A counterweight is fixedly connected to the center of the bottom surface of the water collection box, a mesh door is snapped onto the front of the mesh cage, and a set of barbed openings are inlaid on the outer surface of the mesh cage extending into the interior of the mesh cage.

[0011] As a further description of the above technical solution: A set of components is fixedly connected to the upper surface of the float plate, and a set of components is fixedly connected to the bottom surface of the water collection box. The liquid inlet is connected to the lower part of the water collection box, and the liquid outlet is connected to the interior of the water collection box.

[0012] As a further description of the above technical solution: The second motor, which is fixedly connected inside the float, extends to the outside and is fixedly connected to a gear. A gear disk that meshes with the gear is rotatably connected to the middle of the bottom surface of the float. A third motor is fixedly connected to the bottom surface of the gear disk, and a propeller is fixedly connected to the output end of the third motor.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the operation of the first motor drives the eccentric wheel to rotate, causing the piston rod to move back and forth inside the piston cylinder. Water on one side flows to the outer surface of the fish-attracting lamp through the second one-way valve and the annular nozzle, while water on the other side flows to the inside of the mesh cylinder through the first one-way valve. The algae juice solidified slow-release bait block placed inside the mesh cylinder flows with the water flow to the inside of the net cage. The device uses the water flow to slow down the adhesion of impurities on the outer surface of the fish-attracting lamp, thereby reducing the impact of impurities on the light of the fish-attracting lamp, so that the fish-attracting lamp can better attract basket fish. At the same time, the flow of water carries the algae juice solidified slow-release bait block placed inside the mesh cylinder to the inside of the net cage, better attracting basket fish into the cage.

[0014] 2. In this invention, the air pump inflates the annular rubber airbag, causing the buoyancy generated by the expansion of the annular rubber airbag to rise, which is beneficial for the cage to be retracted and rises steadily and uniformly, reducing the impact and stress caused by the cage tipping over due to hard pulling. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of a wild basketfish catching device proposed in this invention; Figure 2 This is a front view schematic diagram of a wild basketfish catching device proposed in this invention; Figure 3 This is a rear view schematic diagram of a wild basket fish catching device proposed in this invention; Figure 4 This is a front view cross-sectional view of the piston cylinder of a wild basketfish catching device proposed in this invention; Figure 5 This is a partial cross-sectional view of the float structure of a wild basketfish catching device proposed in this invention. Figure 6 This is a top view schematic diagram of the float structure of a wild basket fish catching device proposed in this invention.

[0016] Legend: 1. Net cage; 2. Hollow traction rope; 3. Float; 4. Fixing plate; 5. Mesh tube; 6. Fish attractant light; 7. Upper shell; 8. First motor; 9. Eccentric wheel; 10. Piston cylinder; 11. Piston rod; 12. Telescopic spring; 13. First one-way valve; 14. Second one-way valve; 15. Annular nozzle; 16. Third one-way valve; 17. Ball bearing; 18. Filter screen; 19. Air pump; 20. Annular rubber air bladder; 21. Water collection box; 22. Threaded rubber plug; 23. Pressure-resistant hose; 24. Counterweight; 25. Net gate; 26. Barbeling opening; 27. Second motor; 28. Gear; 29. ​​Gear disk; 30. Third motor; 31. Propeller. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figure 1-6 This invention provides a technical solution: a wild basketfish catching device, including a net cage 1 and a float 3 fixedly connected to the upper part of the net cage 1 by a hollow traction rope 2. A net door 25 is snapped onto the front of the net cage 1, facilitating the catching of basketfish inside the net cage 1. A set of barbels 26 extending into the interior of the net cage 1 are embedded on the outer surface of the net cage 1. The barbels 26 are wider on the outside and narrower on the inside, facilitating the entry of basketfish while slowing their escape. A fixing plate 4 embedded on the upper surface of the net cage 1 is fixedly connected to the bottom end of the hollow traction rope 2. A mesh cylinder 5 inside the net cage 1 is threadedly connected to the bottom surface of the fixing plate 4, allowing algae to be wrapped around the lower part of the outer surface of the mesh cylinder 5 for auxiliary attraction. A fish-attracting light 6 is fixedly connected to the bottom surface of the fixing plate 4, and an upper shell 7 is fixedly connected to the upper surface of the fixing plate 4. The output end of the first motor 8, which is fixedly connected to the surface, extends into the interior of the upper shell 7. The output end of the first motor 8 is rotatably connected to the through-hole of the upper shell 7. The output end of the first motor 8 is fixedly connected to the shaft of the eccentric wheel 9 provided inside the upper shell 7. A set of piston cylinders 10 is fixedly connected to the outer surface of the upper shell 7. The piston rods 11, which are slidably connected to the inner walls of the two piston cylinders 10, are slidably connected to the eccentric wheel 9. The eccentric wheel 9 does not contact the inner wall of the upper shell 7. The ball bearings 17, which are rotatably connected to the outer surface of the piston rods 11, abut against the eccentric wheel 9. The piston rods 11 are slidably connected to the through-hole of the upper shell 7. The ball bearings 17 reduce the wear between the piston rods 11 and the outer surface of the eccentric wheel 9. The inner walls of the two piston cylinders 10 are fixedly connected to the telescopic springs 12. The end of the telescopic spring 12 away from the inner wall of the piston cylinder 10 is fixedly connected to the piston rod 11.

[0019] Figure 4The left and right telescopic springs 12 are in their natural and compressed states, respectively. The telescopic springs 12 provide a common reset effect for the piston rod 11. One side of the piston cylinder 10 is connected to the inside of the mesh cylinder 5 through the first one-way valve 13, and the other side of the piston cylinder 10 is connected to the annular nozzle 15 outside the fish-attracting lamp 6 through the second one-way valve 14. The annular nozzle 15 is fixedly connected to the bottom surface of the fixing plate 4. The liquid inlet ends of the first one-way valve 13 and the second one-way valve 14 are both connected to the inside of the piston cylinder 10. The liquid outlet end of the first one-way valve 13 is connected to the inside of the mesh cylinder 5, and the liquid outlet end of the second one-way valve 14 is connected to the inside of the annular nozzle 15, ensuring the flow direction of water inside the piston cylinder 10, that is, water on one side flows through the second one-way valve 14. The water from the annular nozzle 15 flows to the outer surface of the fish-attracting lamp 6, while the water from the other side flows through the first one-way valve 13 to the inside of the mesh cylinder 5. The algae juice solidified slow-release bait placed inside the mesh cylinder 5 flows with the water flow to the inside of the net cage 1, better attracting basket fish into the cage. The outlet end of the annular nozzle 15 is inclined towards the outer surface of the fish-attracting lamp 6, which is conducive to the flow of water to the impurities on the outer surface of the fish-attracting lamp 6 and reduces the impact of impurities on the light of the fish-attracting lamp 6. The outer surfaces of the two piston cylinders 10 are fixedly connected to the third one-way valve 16. The filter screen 18 set at the inlet end of the third one-way valve 16 is engaged with the piston cylinder 10. The outlet end of the third one-way valve 16 is connected to the inside of the piston cylinder 10. The filter screen 18 is set to filter the water flowing into the piston cylinder 10.

[0020] In this embodiment, the operation of the first motor 8 drives the eccentric wheel 9 to rotate, causing the piston rod 11 to move back and forth inside the piston cylinder 10. Water on one side flows to the outer surface of the fish attractant lamp 6 through the second one-way valve 14 and the annular nozzle 15, while water on the other side flows to the inside of the mesh cylinder 5 through the first one-way valve 13. The algae juice solidified slow-release bait block placed inside the mesh cylinder 5 flows with the water flow to the inside of the net cage 1. The device uses the water flow to slow down the adhesion of impurities on the outer surface of the fish attractant lamp 6, thereby reducing the impact of impurities on the light of the fish attractant lamp 6, so that the fish attractant lamp 6 can better attract basket fish. At the same time, the flow of water drives the algae juice solidified slow-release bait block placed inside the mesh cylinder 5 to flow with the water flow to the inside of the net cage 1, better attracting basket fish into the cage.

[0021] Example 2 like Figure 3-6As shown, based on Embodiment 1, the second motor 27, which is fixedly connected inside the float 3, extends to the outside and is fixedly connected to a gear 28. The second motor 27 is rotatably connected to the through-hole of the float 3, and a rotating sealing ring is provided at the through-hole. The gear 28 does not contact the outer surface of the float 3, and a gear disk 29 that meshes with the gear 28 is rotatably connected to the middle of the bottom surface of the float 3. A third motor 30 is fixedly connected to the bottom surface of the gear disk 29, and a propeller 31 is fixedly connected to the output end of the third motor 30. The operation of the second motor 27 drives the gear disk 29 to rotate, and the rotation of the propeller 31 driven by the third motor 30 changes the moving direction of the float 3, which facilitates the retrieval of the cage. The air pump 19, which is fixedly connected to the upper surface of the float 3, is connected to the annular rubber airbag 20 provided outside the cage 1. The operation of the air pump 19 inflates the annular rubber airbag 20, so that the buoyancy generated by the expansion of the annular rubber airbag 20 is conducive to the retrieval of the cage. A collection device is fixedly connected to the lower part of the outer surface of the cage 1. A set of 32s is fixedly connected to the upper surface of the water box 21 and the float 3. The 32s are designed to facilitate retrieval by engaging with a hanging rod. A 33 is fixedly connected to the bottom surface of the water box 21. The inlet end of the 33 is connected to the lower part of the water box 21, and the outlet end of the 33 is connected to the interior of the water box 21. A counterweight 24 is fixedly connected to the middle of the bottom surface of the water box 21. The cooperation between the counterweight 24 and the 33 facilitates the sinking of the device underwater. The annular rubber airbag 20 is connected to the outside of the water box 21. The lower part of the surface is fixedly connected, and the threaded rubber plug 22, which is threadedly connected to the outer surface of the annular rubber airbag 20, extends into the interior of the annular rubber airbag 20. The pressure-resistant hose 23, which is fixedly connected to the output end of the air pump 19, extends into the interior of the hollow traction rope 2. The annular rubber airbag 20 can be depressurized and reset by separating the threaded rubber plug 22 from the outer surface of the annular rubber airbag 20, which is beneficial for the cyclic use of the device. The lower end of the pressure-resistant hose 23 is connected to the interior of the annular rubber airbag 20.

[0022] In this embodiment, the coordinated arrangement of the second motor 27 and the third motor 30 can drive the float 3 to move in different directions. The operation of the air pump 19 inflates the inside of the annular rubber air bladder 20, so that the buoyancy generated by the expansion of the annular rubber air bladder 20 is conducive to the retrieval of the cage, and the cage floats up at a uniform speed and smoothly, reducing the stress and collision caused by the cage tipping over due to hard pulling. The water collection box 21 ensures that there is always water in the cage during the retrieval process, reducing the impact of the retrieval process on the fish in the basket.

[0023] Working principle: In use, the fish-attracting lamp 6, the first motor 8, the air pump 19, the second motor 27, and the third motor 30 are all connected to a power source. The operation of the first motor 8 drives the eccentric wheel 9 to rotate, causing the piston rod 11 to move back and forth inside the piston cylinder 10. Water on one side flows to the outer surface of the fish-attracting lamp 6 through the second one-way valve 14 and the annular nozzle 15, while water on the other side flows to the inside of the mesh cylinder 5 through the first one-way valve 13. The algae juice solidified slow-release bait placed inside the mesh cylinder 5 flows with the water flow to the inside of the net cage 1. The device uses the water flow to slow down the adhesion of impurities to the outer surface of the fish-attracting lamp 6, thereby reducing the amount of impurities. The influence of the material on the light of the fish-attracting lamp 6 makes the fish-attracting lamp 6 better attract the basket fish. At the same time, the water flow causes the algae juice solidified slow-release bait block placed inside the mesh tube 5 to flow with the water flow into the inside of the net cage 1, which better attracts the basket fish into the cage. The coordinated setting of the second motor 27 and the third motor 30 can drive the float 3 to move in different directions. The operation of the air pump 19 inflates the inside of the annular rubber air bladder 20, so that the buoyancy generated by the expansion of the annular rubber air bladder 20 moves upward, which is conducive to the retrieval of the cage by the device. It also floats up at a uniform speed and smoothly, reducing the stress and collision caused by the cage tipping over due to manual pulling.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wild basketfish catching device, comprising a net cage, characterized in that, This includes fish-attracting organizations and fish-collecting organizations; The fish-attracting mechanism includes a first motor, a piston cylinder, a fixed plate, and a fish-attracting lamp. An eccentric wheel is fixedly connected to the output end of the first motor. A piston rod slidably connected inside the piston cylinder of the eccentric wheel abuts against and pushes the piston rod to reciprocate inside the piston cylinder. The fixed plate is embedded in the upper surface of the net cage. A mesh cylinder for slow release is provided inside the net cage and threadedly connected to the bottom surface of the fixed plate. The fish-attracting lamp is fixedly connected to the bottom surface of the fixed plate. A protective upper shell is fixedly connected to the upper surface of the fixed plate. A telescopic spring with a reset function is fixedly connected to the inner wall of both piston cylinders. One piston cylinder is connected to the inside of the mesh cylinder through a first one-way valve, and the other piston cylinder is connected to the annular nozzle provided outside the fish-attracting lamp through a second one-way valve. A third one-way valve for one-way water inlet is fixedly connected to the outer surface of both piston cylinders. The fish-catching mechanism includes a hollow traction rope and a float. The bottom end of the hollow traction rope is fixedly connected to a fixed plate. The float is fixedly connected to the upper part of the net cage through the hollow traction rope. An air pump fixedly connected to the upper surface of the float is connected to an annular rubber airbag set outside the net cage for providing buoyancy and upward movement.

2. The wild basketfish catching device according to claim 1, characterized in that, The outer surface of the piston rod is rotatably connected to the ball bearings that abut against the eccentric wheel, and the piston rod is slidably connected to the through-hole of the upper shell. The eccentric wheel does not contact the inner wall of the upper shell, and the output end of the first motor is rotatably connected to the through-hole of the upper shell.

3. The wild basketfish catching device according to claim 1, characterized in that, The end of the telescopic spring away from the inner wall of the piston cylinder is fixedly connected to the piston rod. The filter screen at the inlet end of the third one-way valve is engaged with the piston cylinder. The outlet end of the third one-way valve is connected to the interior of the piston cylinder.

4. The wild basketfish catching device according to claim 1, characterized in that, The annular nozzle is fixedly connected to the bottom surface of the fixed plate. The inlet ends of the first one-way valve and the second one-way valve are both connected to the inside of the piston cylinder. The outlet end of the first one-way valve is connected to the inside of the mesh cylinder. The outlet end of the second one-way valve is connected to the inside of the annular nozzle. The outlet end of the annular nozzle is inclined toward the outer surface of the fish-attracting lamp.

5. The wild basketfish catching device according to claim 1, characterized in that, A water collection box is fixedly connected to the lower part of the outer surface of the net cage. The annular rubber airbag is fixedly connected to the lower part of the outer surface of the water collection box. The threaded rubber plug connected to the outer surface of the annular rubber airbag extends into the interior of the annular rubber airbag. The pressure-resistant hose fixedly connected to the output end of the air pump extends into the interior of the hollow traction rope. The lower end of the pressure-resistant hose is connected to the interior of the annular rubber airbag.

6. A wild basketfish catching device according to claim 5, characterized in that, A counterweight is fixedly connected to the center of the bottom of the water collection box, a net door is snapped onto the front of the net cage, and a set of barbels extending into the inside of the net cage are inlaid on the outer surface of the net cage to prevent the fish from swimming out.

7. A wild basketfish catching device according to claim 6, characterized in that, A set of components is fixedly connected to the upper surface of the float plate, and a set of components is fixedly connected to the bottom surface of the water collection box. The liquid inlet is connected to the lower part of the water collection box, and the liquid outlet is connected to the interior of the water collection box.

8. A wild basketfish catching device according to claim 1, characterized in that, The second motor, which is fixedly connected inside the float, extends to the outside and is fixedly connected to a gear. A gear disk that meshes with the gear is rotatably connected to the middle of the bottom surface of the float. A third motor is fixedly connected to the bottom surface of the gear disk, and a propeller is fixedly connected to the output end of the third motor.

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