A special fishing assembly for south-north white prawn RAS culture pond

Abstract

The application discloses a kind of special fishing components of north and south white prawn RAS culture pond, including several rows RAS culture ponds and PLC controller, double guide rail is additionally arranged between two adjacent rows RAS culture ponds, main drive mechanism, slave drive mechanism I and slave drive mechanism II are clamped on double guide rail, fishing net fixed frame is additionally arranged in RAS culture pond, several folding fishing nets are installed on fishing net fixed frame, under the interaction of three-phase servo motor II and traction rope II, traction rope III, fishing net fixed frame is slowly lifted and lowered, replaces traditional manual fishing, improves fishing efficiency, while greatly reduce the physical damage of organism in RAS culture pond due to fishing, maximum degree reduces the stress response of fishing process;In addition, the slow movement of fishing net fixed frame can also avoid stirring the sediment of RAS culture pond bottom, ensure the stability of water quality in RAS culture pond during the whole fishing process.

Description

Technical Field

[0001] This invention relates to a harvesting component for RAS (Rapid Aquaculture) ponds, specifically a harvesting component for RAS ponds of Litopenaeus vannamei and Litopenaeus vannamei, belonging to the field of aquaculture equipment applications. Background Technology

[0002] With the rapid development of the global aquaculture industry, aquaculture technology is constantly advancing. Among these advancements, Recirculating Aquaculture Systems (RAS) have become a highly regarded advanced aquaculture model in recent years. RAS is a closed-loop aquaculture system that reduces the demand for and discharge of fresh water by filtering, treating, and recycling used water. Key features of this system include:

[0003] 1. Efficient water resource utilization: The RAS system can reduce dependence on fresh water and save water resources.

[0004] 2. Environmentally friendly: By strictly controlling water quality, pollution to the external environment is reduced.

[0005] 3. Disease control: Closed systems can reduce the risk of disease transmission and improve biosafety.

[0006] 4. Growth control: The water temperature, light and nutrients in the system can be adjusted as needed to optimize the growth environment.

[0007] The Pacific white shrimp, also known as the Litopenaeus vannamei, is a popular farmed species, primarily due to its rapid growth rate and high market demand. The Pacific white shrimp has the following characteristics:

[0008] 1. Rapid growth: The growth rate of Pacific white shrimp is relatively fast, which can bring quick economic returns to farmers.

[0009] 2. Large market demand: Globally, the demand for whiteleg shrimp has been growing, indicating huge market potential.

[0010] 3. Highly adaptable: It can grow under various water quality conditions.

[0011] Combining RAS technology with the farming of Litopenaeus vannamei has the following advantages:

[0012] 1. High stocking density: Because the RAS system can provide a stable and high-quality water source, it allows farmers to increase the stocking density without affecting the growth of shrimp.

[0013] 2. Short growth cycle: Through precise environmental control, the growth cycle of Litopenaeus vannamei can be shortened.

[0014] 3. Reduced medication use: Due to the closed nature of the system, the risk of disease is reduced, thereby reducing the need for medication.

[0015] With technological advancements, the Recycling Analysis (RAS) system has demonstrated immense potential in the farming of Litopenaeus vannamei. Especially today, with increasing concerns about water scarcity and environmental protection, RAS technology offers a sustainable development path for the aquaculture industry. The integration of RAS systems with Litopenaeus vannamei represents a significant development direction for aquaculture, providing farmers with an efficient, environmentally friendly, and sustainable farming method. As the technology continues to improve and expand, the application of RAS systems in Litopenaeus vannamei farming will become even more widespread.

[0016] The RAS system has its own unique culture ponds. Currently, harvesting Pacific white shrimp from RAS culture ponds still relies on traditional manual harvesting methods, which have the following drawbacks:

[0017] 1. Because RAS is a closed system, organisms in the water are more sensitive to external disturbances. The artificial harvesting process can cause physical damage to the organisms in the aquaculture pond, such as impact or friction, which can cause stress to the organisms and affect their health and subsequent growth.

[0018] 2. Compared with traditional open ponds or cages, the RAS system aquaculture pond has reduced harvesting efficiency due to its structure and design characteristics;

[0019] 3. The process of artificial fishing also disturbs the sediment at the bottom of the pond, leading to an increase in suspended matter in the water and affecting water quality.

[0020] Therefore, there is an urgent need to develop a professional and effective fishing component for RAS aquaculture ponds to compensate for the shortcomings of manual fishing. Summary of the Invention

[0021] The purpose of this invention is to provide a special harvesting component for RAS (Rapid Aquaculture) ponds of white shrimp (Litopenaeus vannamei) in order to solve the above-mentioned problems.

[0022] This invention achieves the above-mentioned objective through the following technical solution: a special harvesting component for RAS (Rapid Aquaculture) ponds of Litopenaeus vannamei (North and South White Shrimp), comprising several rows of RAS ponds and a PLC controller. Each RAS pond has a funnel-shaped sludge collection trough inside. A double guide rail is provided between adjacent rows of RAS ponds. A main drive mechanism, a driven drive mechanism I, and a driven drive mechanism II are mounted on the double guide rails. A telescopic rod connects the main drive mechanism to each of the driven drive mechanisms I and II. Each of the main drive mechanism, driven drive mechanism I, and driven drive mechanism II is equipped with a positioning module I. The positioning modules I on driven drive mechanisms I and II are respectively positioned in opposite directions. A movable fishing net fixing frame is installed on the inner wall of the S-type aquaculture pond. Several folding fishing nets and two supports are mounted on the fishing net fixing frame. A hollow crossbeam is installed between the two supports, and a rotating shaft I is installed inside the crossbeam. A traction rope I is connected to the rotating shaft I and is connected to the folding fishing nets. A three-phase servo motor I is mounted on the support and is electrically connected to the rotating shaft I. Two positioning modules II are arranged opposite each other on the RAS aquaculture pond. A traction rope II is connected to positioning module I, and a traction rope III is connected to positioning module II. The traction ropes II and III are connected by spring clips.

[0023] The main transmission mechanism includes a double guide rail connecting plate, a motor connecting box, and a conveyor working box I. The double guide rail connecting plate is bolted to the motor connecting box. The conveyor working box I is fixed to and communicates with the motor connecting box. A three-phase servo motor II is connected to the motor connecting box. A rotating shaft II is installed inside the motor connecting box. A rotating shaft III is installed inside the conveyor working box I. Gear disks are fixed on both rotating shafts II and III. A conveyor belt is sleeved between the two gear disks. A traction rope II is fixed to the rotating shaft III. A positioning module I is movably connected to the conveyor working box I. Two guide wheels are installed at the bottom of the double guide rail connecting plate, and the two guide wheels are embedded in the double guide rails.

[0024] The transmission mechanism I includes a rotating shaft II working box and a conveying working box II. The rotating shaft II working box also houses a rotating shaft II. The rotating shaft II inside the working box is connected to a rotating shaft II located in the motor connection box via a telescopic rod. The conveying working box II has the same structure as the conveying working box I. Two guide wheels are also installed at the bottom of the rotating shaft II working box, and these two guide wheels are embedded in the double guide rails.

[0025] The driven transmission mechanism II has the same structure as the driven transmission mechanism I.

[0026] Both the three-phase servo motor I and the three-phase servo motor II are electrically connected to the PLC controller.

[0027] Preferably, one of the double guide rails has several pairs of arc-shaped guide wheel slots on its inner bottom surface, and a block through groove I on its side wall. The arc-shaped guide wheel slots correspond to the block through groove I. A spring support is connected to the guide wheel, and the spring support is fixed to the bottom of the double guide rail connecting plate or the rotating shaft II working box. A pin groove is provided on the front side wall of the double guide rail connecting plate or the rotating shaft II working box. A welding block through groove is provided at the bottom of the pin groove, and two opposing "L"-shaped sliding grooves are provided on the inner wall of the pin groove. I. A T-shaped pin I is inserted into the pin groove. Two clips I are fixed on the side wall of the T-shaped pin I. The two clips I are respectively embedded in the two L-shaped sliding grooves I. A locking block inner plate is bolted to the inner end face of the T-shaped pin I. A spring post I is connected between the inner end face of the locking block inner plate and the inner end face of the pin groove. A convex locking block is connected to the bottom of the locking block inner plate through a welding block. The welding block passes through the welding block through groove. The convex part of the convex locking block matches the locking block through groove I.

[0028] Preferably, the motor connecting box is provided with two pin through grooves, and the double guide rail connecting plate is provided with two pin limiting grooves. The pin through grooves correspond to the pin limiting grooves. The pin through grooves are provided with two opposing "L"-shaped sliding grooves II. A "T"-shaped pin II is embedded in the pin through groove. The length of the "T"-shaped pin II is greater than the length of the pin through groove. The "T"-shaped pin II is provided with a thin pin segment. A spring post II is sleeved on the thin pin segment. Two opposing clips II are fixed on the side wall of the "T"-shaped pin II. The two clips II are located at the bottom of the thin pin segment. The two clips II are respectively locked in the two "L"-shaped sliding grooves II. A limiting ring is fixed in the pin through groove. The thin pin segment passes through the limiting ring. The upper end of the spring post II is fixed on the bottom surface of the limiting ring.

[0029] Preferably, two opposing "T"-shaped sliders are fixed on the side wall of the fishing net fixing frame, one end of the traction rope III is fixed on the "T"-shaped slider, two "T"-shaped grooves are provided on the inner wall of the RAS aquaculture pond, the "T"-shaped sliders are embedded in the "T"-shaped grooves, two traction rope through holes are provided on the upper surface of the RAS aquaculture pond, the traction rope through holes are connected to the "T"-shaped grooves, the positioning module II includes an "L"-shaped pipe and a laser positioning plate, the "L"-shaped pipe is fixed on the surface of the fishing net fixing frame and is connected to the traction rope through holes, the laser positioning plate is fixed on the "L"-shaped pipe, the laser positioning plate is provided with laser positioning points, the side wall of the laser positioning plate is provided with hook I, the traction rope III passes through the traction rope through holes and the "L"-shaped pipe in sequence, and the front end of the traction rope III is connected to a spring buckle, the spring buckle is hung on the hook I.

[0030] Preferably, the positioning module I includes an outer horizontal pipe, an inner horizontal pipe, a positioning plate, and a laser fixing plate. The inner horizontal pipe is sleeved inside the outer horizontal pipe. The laser fixing plate is fixed to the outer horizontal pipe and has a laser and a laser switch connected to it. A pipe positioning plate is fixed to the outer horizontal pipe, and two opposing pulleys are connected to it. The positioning plate is fixed to the inner end face of the inner horizontal pipe. A pressing block is provided on the front end face of the inner horizontal pipe, and a hook II is fixed to the side wall of the pressing block. A pipe through groove is provided on the side wall of the conveying work box I or the conveying work box II, and the outer horizontal pipe passes through the pipe through groove. The upper and lower surfaces of the pipe through groove are provided with... The device has a positioning plate groove, in which the positioning plate is embedded. Two pulleys abut against the upper and lower surfaces of the positioning plate groove, respectively. The positioning plate is located inside the conveying work box I or the conveying work box II. The inner side wall of the conveying work box I or the conveying work box II is provided with two pairs of locking tooth grooves, which are located above and below the pipe through groove, respectively. Several pairs of locking teeth are fixed on the outer end face of the positioning plate, and the locking teeth match the locking tooth grooves. A spring column III is fixed between the outer end face of the pressing block and the laser fixing plate. A hook II is fixed on the side wall of the pressing block. The traction rope II passes through the inner horizontal pipe, and the front end of the traction rope II is provided with a through hole, which is hung on the hook II.

[0031] Preferably, the inner wall of the conveying work box I or the conveying work box II is provided with a traction rope guide tube I, the traction rope guide tube I is located above the pipe through groove, the bottom of the traction rope guide tube I is provided with a traction rope through groove, the traction rope II passes through the traction rope guide tube I and exits from the traction rope through groove, and then passes into the inner horizontal pipe.

[0032] Preferably, the inner wall of the RAS aquaculture pond is provided with two opposing guide grooves, and guide strips are fixed on the outer walls of the two supports. The guide strips are embedded in the guide grooves. The bottom of the crossbeam is connected to a traction rope guide tube II. Several traction rope diversion tubes are fixed in the traction rope guide tube II. Several diversion traction ropes are connected to the traction rope I. The diversion traction ropes pass through the traction rope diversion tubes in sequence and are fixed to the folding fishing net.

[0033] Preferably, the folding fishing net includes a fixed section and a folding section, which are connected by a hinge. An iron block is fixed to the front end of the folding section, and the bottom end of the diversion traction rope is fixed to the iron block.

[0034] Preferably, the telescopic rod is fixed with connecting pipes at both ends, and the rotating shaft II is provided with a connecting pipe slot at one end. The side wall of the connecting pipe is provided with two opposing "L"-shaped sliding grooves III and two opposing locking block through grooves II. The locking block through grooves II are located below the "L"-shaped sliding grooves III. A spring column IV is bolted inside the connecting pipe. A conical extrusion block is connected to the bottom of the spring column IV. Two opposing "T"-shaped pins III are fixed on the side wall of the conical extrusion block. The "T"-shaped pins III pass through the "L"-shaped sliding grooves III. Two opposing arc-shaped plates are connected to the inner wall of the connecting pipe through spring column V. An arc-shaped locking block is fixed on the outer end face of the arc-shaped plate. The arc-shaped locking block is opposite to the locking block through groove II. The inner wall of the connecting pipe slot is provided with two opposing locking block limiting grooves. The locking block limiting grooves match the arc-shaped locking blocks.

[0035] Preferably, the diameter of the upper surface of the conical extrusion block is the same as the inner diameter of the connecting pipe, the bottom of the conical extrusion block has an arc-shaped structure, and the upper surface of the arc-shaped plate has an outwardly curved arc-shaped structure.

[0036] The beneficial effects of this invention are as follows: The special harvesting component for RAS culture ponds of Litopenaeus vannamei disclosed in this invention has the following advantages:

[0037] 1. This invention adds a net fixing frame to the RAS aquaculture pond. Several foldable nets are installed on the net fixing frame. Under the interaction of the three-phase servo motor II and the traction ropes II and III, the net fixing frame is slowly raised and lowered, replacing traditional manual fishing, improving fishing efficiency, and greatly reducing physical damage to organisms in the RAS aquaculture pond caused by fishing, minimizing the stress response during the fishing process. In addition, the slow movement of the net fixing frame can also avoid disturbing the sediment at the bottom of the RAS aquaculture pond, ensuring the stability of the water quality in the RAS aquaculture pond throughout the fishing process.

[0038] 2. This invention adds a double guide rail between two adjacent rows of RAS aquaculture ponds. The double guide rail is equipped with a main drive mechanism, a driven drive mechanism I, and a driven drive mechanism II. The main drive mechanism includes a double guide rail connecting plate, a motor connecting box, and a conveyor working box I. The motor connecting box can rotate horizontally relative to the double guide rail connecting plate. When it is necessary to harvest the RAS aquaculture pond located on the left side of the double guide rail, the main drive mechanism and the driven drive mechanism I can be used for operation. When it is necessary to harvest the RAS aquaculture pond located on the right side of the double guide rail, the motor connecting box on the main drive mechanism can be rotated to be on the same side as the driven drive mechanism II, and the main drive mechanism and the driven drive mechanism II can be used for operation.

[0039] 3. A telescopic rod connects the main drive mechanism and the driven drive mechanism I / driven drive mechanism II, enabling synchronous rotation of the main drive mechanism and the driven drive mechanism I / driven drive mechanism II; at the same time, positioning module I and positioning module II are positioned by laser, which improves the positioning accuracy. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0041] Figure 2 This is a schematic diagram of the cross-sectional structure of the dual guide rails of the present invention.

[0042] Figure 3 This is a schematic diagram of the internal structure of the main transmission mechanism of the present invention.

[0043] Figure 4 This is a schematic diagram of the transmission mechanism I of the present invention.

[0044] Figure 5 This is a schematic diagram of the connection structure between the "T"-shaped pin I and the double guide rail connecting plate of the present invention.

[0045] Figure 6 This is a schematic diagram of the connection structure between the "T"-shaped pin II and the motor connection box of the present invention.

[0046] Figure 7 This is a schematic diagram of the connection structure between the positioning module I and the conveying work box I of the present invention.

[0047] Figure 8 This is a schematic diagram of the positioning module II of the present invention.

[0048] Figure 9 This is a schematic diagram of the cross-sectional structure of the RAS aquaculture pond of the present invention.

[0049] Figure 10 This is a schematic diagram of the connection structure between the rotating shaft I and the folding fishing net of the present invention.

[0050] Figure 11 This is a schematic diagram of the folding fishing net structure of the present invention.

[0051] Figure 12 This is a schematic diagram of the connection structure between the telescopic rod and the rotating shaft II of the present invention.

[0052] Figure 13 This is a schematic diagram of the internal structure of the connecting pipe of the present invention.

[0053] In the diagram: 1. RAS aquaculture pond; 2. Funnel-shaped sludge collection trough; 3. Double guide rails; 4. Main transmission mechanism; 4-1. Double guide rail connecting plate; 4-2. Motor connection box; 4-3. Conveyor working box I; 5. Slave transmission mechanism I; 5-1. Rotary shaft II working box; 5-2. Conveyor working box II; 6. Slave transmission mechanism II; 7. Three-phase servo motor II; 8. Positioning module I; 9. Fishing net fixing frame; 10. Bracket; 11. Crossbeam; 12. Three-phase servo motor I; 13. Positioning module II; 14. Folding fishing net; 14-1. Fishing net fixing section; 14-2. Fishing net folding section; 15. Spring support. 16. Column, 17. Guide wheel, 18. "T" pin I, 19. Convex locking block, 20. Guide wheel arc-shaped locking groove, 21. Locking block through groove I, 22. "T" pin II, 23. Pin limiting groove, 24. Welding block through groove, 25. Rotating shaft II, 26. Rotating shaft III, 27. Gear disk, 28. Conveyor belt, 29. Traction rope II, 30. Traction rope guide tube I, 31. Pipe through groove, 32. Locking tooth groove, 33. Traction rope through groove, 34-1. Locking plate groove, 34-2. Inner horizontal pipe, 35. Locking plate, 36. Locking tooth, 37. Pipe locking plate, 38. Pulley, 39. 40. Laser mounting plate; 41. Laser switch; 42. Pressing block; 43. Spring post III; 44. Perforation; 45. "L" shaped pipe; 46. Laser positioning plate; 47. Laser positioning point; 48. Spring buckle; 49-1. Hook I; 49-2. Hook II; 50. Traction rope III; 51. "T" shaped groove; 52. Guide groove; 53. Traction rope through hole; 54. "T" shaped slider; 55. Guide bar; 56. Traction rope guide tube II; 57. Rotating shaft I; 58. Traction rope diverter tube; 59. Traction rope I; 60. Diverter traction rope; 61. Hinge; 62. Iron block; 6 3. Pin groove; 64. "L"-shaped slide groove I; 65. Clamping block embedded plate; 66. Spring column I; 67. Clamp I; 68. Pin through groove; 69. "L"-shaped slide groove II; 70. Limiting ring; 71. Fine pin section; 72. Spring column II; 73. Clamp II; 74. Telescopic rod; 75. Connecting pipe; 76. Clamping block through groove II; 77. "L"-shaped slide groove III; 78. Clamping block limiting groove; 79. Conical extrusion block; 80. Spring column IV; 81. "T"-shaped pin III; 82. Arc plate; 83. Spring column V; 84. Arc-shaped clamping block; 85. PLC controller; 86. Connecting pipe slot; 87. Welding block. Detailed Implementation

[0054] 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.

[0055] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0057] like Figure 1 and Figure 10As shown, a special harvesting assembly for RAS (Rapid Aquaculture) ponds of Litopenaeus vannamei includes several rows of RAS ponds 1 and a PLC controller 85. Each RAS pond 1 has a funnel-shaped sludge collection trough 2 inside, where feed, shrimp shells, and other sediments are deposited. A double guide rail 3 is provided between adjacent rows of RAS ponds 1. A main drive mechanism 4, a driven drive mechanism I5, and a driven drive mechanism II6 are mounted on the double guide rail 3. A telescopic rod 74 connects the main drive mechanism 4 to the driven drive mechanisms I5 and II6. Positioning modules I8 are provided on the main drive mechanism 4, driven drive mechanisms I5, and driven drive mechanisms II6, respectively, with the positioning modules I8 on the driven drive mechanisms I5 and II6 positioned in opposite directions. A harvesting net that can move up and down is installed on the inner wall of each RAS pond 1. A fixed frame 9 is provided, on which several folding fishing nets 14 and two supports 10 are installed. A hollow crossbeam 11 is installed between the two supports 10. A rotating shaft I 57 is installed inside the crossbeam 11. A traction rope I 59 is connected to the rotating shaft I 57 and is connected to the folding fishing nets 14. A three-phase servo motor I 12 is installed on the support 10 and is electrically connected to the rotating shaft I 57. The three-phase servo motor I 12 controls the rotating shaft I 57 to rotate clockwise, pulling the traction rope I 59 on the rotating shaft I 57 and pulling the folding fishing nets 14 to a closed state. Conversely, the three-phase servo motor I 12 controls the rotating shaft I 57 to rotate counterclockwise, releasing the traction rope I 59 on the rotating shaft I 57 and restoring the folding fishing nets 14 to an open state.

[0058] like Figure 1 , Figure 7 and Figure 8 As shown, two positioning modules II13 are provided opposite to each other on the RAS aquaculture pond 1. A traction rope II28 is connected to the positioning module I8, and a traction rope III50 is connected to the positioning module II13. The traction rope II28 and the traction rope III50 are connected by a spring buckle 48. The other end of the traction rope III50 is fixed to the fishing net fixing frame 9.

[0059] like Figure 3As shown, the main transmission mechanism 4 includes a double guide rail connecting plate 4-1, a motor connecting box 4-2, and a conveying work box I 4-3. The double guide rail connecting plate 4-1 is bolted to the motor connecting box 4-2, enabling the motor connecting box 4-2 to rotate horizontally relative to the double guide rail connecting plate 4-1. The conveying work box I 4-3 is fixed on the motor connecting box 4-2 and communicates with it. A three-phase servo motor II 7 is connected to the motor connecting box 4-2. A rotating shaft II 24 is installed inside the motor connecting box 4-2, and the three-phase servo motor II 7 is electrically connected to the rotating shaft II 24. A rotating shaft III 25 is installed inside the conveying work box I 4-3. The rotating shaft II 24 and the... Gear discs 26 are fixed on the rotating shaft III 25. A conveyor belt 27 is sleeved between the two gear discs 26. The traction rope II 28 is fixed on the rotating shaft III 25. The three-phase servo motor II 7 works and drives the rotating shaft II 24 to rotate clockwise. The rotating shaft III 25 rotates clockwise under the drive of the conveyor belt 27. At the same time, the traction rope II 28 is pulled, and the traction rope III 50 connected to the traction rope II 28 is also pulled, lifting the entire fishing net fixing frame 9. Conversely, the three-phase servo motor II 7 works and drives the rotating shaft II 24 to rotate counterclockwise. The rotating shaft III 25 rotates counterclockwise under the drive of the conveyor belt 27. At the same time, the traction rope II 28 is unfurled, and the entire fishing net fixing frame 9 is put back into the bottom of the RAS aquaculture pond 1.

[0060] In the above embodiments, the fishing net fixing frame 9 is slowly raised and lowered under the interaction of the three-phase servo motor II7 and the traction rope II28 and traction rope III50, which replaces traditional manual fishing, improves fishing efficiency, and greatly reduces the physical damage to organisms in the RAS aquaculture pond 1 caused by fishing, minimizing the stress response during the fishing process. In addition, the slow movement of the fishing net fixing frame 9 can also avoid disturbing the sediment at the bottom of the RAS aquaculture pond 1, ensuring the stability of the water quality in the RAS aquaculture pond 1 throughout the fishing process.

[0061] like Figure 1 , Figure 3 and Figure 4As shown, the positioning module I8 is movably connected to the conveying work box I4-3. Two guide wheels 16 are installed at the bottom of the double guide rail connecting plate 4-1, and the two guide wheels 16 are embedded in the double guide rail 3. The transmission mechanism I5 includes a rotating shaft II work box 5-1 and a conveying work box II 5-2. A rotating shaft II 24 is also installed in the rotating shaft II work box 5-1. The rotating shaft II 24 in the rotating shaft II work box 5-1 is connected to the rotating shaft II 24 located in the motor connecting box 4-2 through the telescopic rod 74. The telescopic rod 74 drives the rotating shaft II 24 in the rotating shaft II work box 5-1 and the rotating shaft II 24 in the motor connecting box 4-2 to rotate synchronously. The conveying work box II 5-2 has the same structure as the conveying work box I4-3. Two guide wheels 16 are also installed at the bottom of the rotating shaft II work box 5-1, and the two guide wheels 16 are embedded in the double guide rail 3.

[0062] The driven transmission mechanism II6 has the same structure as the driven transmission mechanism I5. When harvesting from the RAS aquaculture pond 1 located on the left side of the double guide rail 3, the main transmission mechanism 4 and the driven transmission mechanism I5 work synchronously. When harvesting from the RAS aquaculture pond 1 located on the right side of the double guide rail 3, the main transmission mechanism 4 and the driven transmission mechanism II6 work synchronously.

[0063] Both the three-phase servo motor I12 and the three-phase servo motor II7 are electrically connected to the PLC controller 85. The PLC controller 85 is used to debug the three-phase servo motor I12 and the three-phase servo motor II7 to determine the optimal working time of each operation of the three-phase servo motor I12 and the three-phase servo motor II7.

[0064] To enable the main drive mechanism 4, the driven drive mechanism I 5, and the driven drive mechanism II 6 to move on the double guide rails 3 while being fixed at specific positions, the present invention makes the following design:

[0065] like Figure 2 , Figure 3 and Figure 5As shown, one of the guide rails 3 has several pairs of guide wheel arc-shaped slots 19 on its inner bottom surface, and a block through groove I 20 on its side wall. The guide wheel arc-shaped slots 19 correspond to the block through grooves I 20. The guide wheel arc-shaped slots 19 are located directly in front of the positioning module II 13. A spring support 15 is connected to the guide wheel 16. The structure of the spring support 15 is existing technology and will not be described in detail here. The spring support 15 is fixed to the bottom of the double guide rail connecting plate 4-1 or the rotating shaft II working box 5-1. The front side wall of the double guide rail connecting plate 4-1 or the rotating shaft II working box 5-1 has a pin groove 63. The bottom of the pin groove 63 has a welding block through groove 23. The inner wall of the groove 63 is provided with two opposing "L"-shaped sliding grooves I64. A "T"-shaped pin I17 is inserted into the pin groove 63. Two clips I67 are fixed on the side wall of the "T"-shaped pin I17. The two clips I67 are respectively embedded in the two "L"-shaped sliding grooves I64. A locking block inner plate 65 is bolted to the inner end face of the "T"-shaped pin I17. A spring post I66 is connected between the inner end face of the locking block inner plate 65 and the inner end face of the pin groove 63. A convex locking block 18 is connected to the bottom of the locking block inner plate 65 through a welding block 87. The welding block 87 passes through the welding block through groove 23. The convex part of the convex locking block 18 matches the locking block through groove I20.

[0066] The process by which the main drive mechanism 4, the driven drive mechanism I 5, and the driven drive mechanism II 6 are fixed on the double guide rail 3 is as follows:

[0067] When the guide wheel 16 moves on the double guide rail 3, the spring support 15 is always in a compressed state. When the guide wheel 16 moves to the guide wheel arc groove 19, the guide wheel 16 is bounced into the guide wheel arc groove 19 under the elastic force of the spring support 15. At this time, the main drive mechanism 4 / the driven drive mechanism I5 / the driven drive mechanism II6 are initially locked on the double guide rail 3. Then, the "T" pin I17 is pushed inward until the clamp I67 is located at the bottom of the "L" shaped slide groove I64. Then, the "T" pin I17 is rotated until the clamp I67 is located in the horizontal section of the "L" shaped slide groove I64. At this time, the spring column I66 is in a compressed state, the convex clamp 18 is squeezed and embedded in the clamp through groove I20, and the main drive mechanism 4 / the driven drive mechanism I5 / the driven drive mechanism II6 are fixed on the double guide rail 3.

[0068] To enable the motor connection box 4-2 to rotate horizontally relative to the double guide rail connection plate 4-1 while simultaneously being fixed to the double guide rail connection plate 4-1, the present invention makes the following design:

[0069] like Figure 3 and Figure 6As shown, the motor connecting box 4-2 is provided with two pin through grooves 68, and the double guide rail connecting plate 4-1 is provided with two pin limiting grooves 22. The pin through grooves 68 correspond to the pin limiting grooves 22. The pin through grooves 68 are provided with two opposing "L"-shaped sliding grooves II 69. A "T"-shaped pin II 21 is embedded in the pin through grooves 68. The length of the "T"-shaped pin II 21 is greater than the length of the pin through groove 68. The "T"-shaped pin II 21 is provided with a thin pin segment 7. 1. A spring post II 72 is sleeved on the thin pin segment 71. Two opposing clips II 73 are fixed on the side wall of the "T"-shaped pin II 21. The two clips II 73 are located at the bottom of the thin pin segment 71 and are respectively locked in the two "L"-shaped sliding grooves II 69. A limiting ring 70 is fixed in the pin through groove 68. The thin pin segment 71 passes through the limiting ring 70. The upper end of the spring post II 72 is fixed on the bottom surface of the limiting ring 70.

[0070] The operation process by which the motor connection box 4-2 can rotate horizontally relative to the double guide rail connection plate 4-1 and be fixed on the double guide rail connection plate 4-1 is as follows:

[0071] Without external force, the T-shaped pin II 21 passes through the pin groove 68 and is inserted into the pin limiting groove 22 at the bottom. At this time, the clip II 73 is located in the vertical section of the L-shaped slide groove II 69, and the motor connection box 4-2 is fixed on the double guide rail connection plate 4-1 by the T-shaped pin II 21.

[0072] Pull out the T-shaped pin II 21 until the clip II 73 is at the top of the vertical section of the L-shaped slide groove II 69, and rotate the T-shaped pin II 21 until the clip II 73 is in the horizontal section of the L-shaped slide groove II 69. At this time, the spring column II 72 is in a compressed state, and the bottom of the T-shaped pin II 21 is dislodged from the pin limiting groove 22. The motor connecting box 4-2 and the double guide rail connecting plate 4-1 are connected by bolts. At this time, the motor connecting box 4-2 can rotate horizontally relative to the double guide rail connecting plate 4-1.

[0073] To improve the positioning accuracy between positioning module I8 and positioning module II13, this invention employs laser positioning, specifically designed as follows:

[0074] like Figures 7-10As shown, two opposing "T"-shaped sliders 54 are fixed on the side wall of the fishing net fixing frame 9. One end of the traction rope III 50 is fixed to the "T"-shaped slider 54. Two "T"-shaped grooves 51 are provided on the inner wall of the RAS aquaculture pond 1, and the "T"-shaped sliders 54 are embedded in the "T"-shaped grooves 51. Two traction rope through holes 53 are provided on the upper surface of the RAS aquaculture pond 1, and the traction rope through holes 53 are connected to the "T"-shaped grooves 51. The positioning module II 13 includes an "L"-shaped pipe 45 and a laser positioning plate. 46. ​​The L-shaped pipe 45 is fixed to the surface of the fishing net fixing frame 9 and is connected to the towing rope through hole 53. The laser positioning plate 46 is fixed to the L-shaped pipe 45. The laser positioning plate 46 is provided with a laser positioning point 47. The side wall of the laser positioning plate 46 is provided with a hook I 49-1. The towing rope III 50 passes through the towing rope through hole 53 and the L-shaped pipe 45 in sequence. The front end of the towing rope III 50 is connected to a spring buckle 48, and the spring buckle 48 is hung on the hook I 49-1.

[0075] The positioning module I8 includes an outer horizontal pipe 34-1, an inner horizontal pipe 34-2, a positioning plate 35, and a laser fixing plate 39. The inner horizontal pipe 34-2 is fitted inside the outer horizontal pipe 34-1. The laser fixing plate 39 is fixed to the outer horizontal pipe 34-1, and a laser 40 and a laser switch 41 are connected to the laser fixing plate 39. A pipe positioning disc 37 is fixed to the outer horizontal pipe 34-1, and two opposing pulleys 38 are connected to the pipe positioning disc 37. The positioning plate 35 is fixed to the inner end face of the inner horizontal pipe 34-2. A pressing block 42 is provided on the front end face of the inner horizontal pipe 34-2, and a hook II 49-2 is fixed on the side wall of the pressing block 42. A pipe through groove 30 is provided on the side wall of the conveying work box I4-3 or the conveying work box II5-2, and the outer horizontal pipe 34-1 passes through the pipe through groove 30. The upper and lower surfaces of the pipe through groove 30 are... Each surface is provided with a positioning plate groove 33, and the positioning plate 35 is embedded in the positioning plate groove 33. The two pulleys 38 respectively abut against the upper and lower surfaces of the positioning plate groove 33. The positioning plate 35 is located inside the conveying work box I 4-3 or the conveying work box II 5-2. The inner side wall of the conveying work box I 4-3 or the conveying work box II 5-2 is provided with two pairs of locking tooth grooves 31, which are respectively located on the pipe through groove 30. Below, several pairs of locking teeth 36 are fixed on the outer end face of the locking plate 35. The locking teeth 36 match the locking tooth groove 31. A spring column Ⅲ 43 is fixed between the outer end face of the pressing block 42 and the laser fixing plate 39. A hook Ⅱ 49-2 is fixed on the side wall of the pressing block 42. The traction rope Ⅱ 28 passes through the inner horizontal pipe 34-2, and the front end of the traction rope Ⅱ 28 is provided with a through hole 44. The through hole 44 is hung on the hook Ⅱ 49-2.

[0076] The precise positioning operation of positioning module I8 and positioning module II13 is as follows:

[0077] Turn on the laser switch 41, and the laser 40 emits a laser. At the same time, the pressing block 42 is pressed inward until the teeth 36 on the positioning plate 35 disengage from the tooth groove 31. At this time, the outer horizontal pipe 34-1 can move left and right along the pipe groove 30. When the outer horizontal pipe 34-1 moves to the laser positioning point 47 where the laser emitted by the laser 40 illuminates the laser positioning point, it indicates that the positioning module I 8 and the positioning module II 13 have been accurately positioned. Then, connect the spring buckle 48 on the traction rope III 50 to the traction rope II 28 to perform the pulling operation on the fixed frame 9 of the fishing net.

[0078] To prevent the traction rope II 28 from getting tangled on the gear disk 26 located on the rotating shaft III 25 during the pulling process, the present invention makes the following design:

[0079] The inner wall of the conveying work box I4-3 or the conveying work box II5-2 is provided with a traction rope guide tube I29. The traction rope guide tube I29 is located above the pipe through groove 30. The bottom of the traction rope guide tube I29 is provided with a traction rope through groove 32. The traction rope II28 passes through the traction rope guide tube I29 and exits from the traction rope through groove 32, and then enters the inner horizontal pipe 34-2.

[0080] The traction rope guide tube I 29 is located above the toothed groove 31 above the pipe channel 30 and on the other side of the gear disk 26. Therefore, the traction rope II 28 will not change its winding position due to the movement of the outer horizontal pipe 34-1 during the pulling process, effectively preventing the traction rope II 28 from getting tangled on the gear disk 26 located on the rotating shaft III 25 during the pulling process.

[0081] like Figure 1 , Figures 9-10 As shown, the inner wall of the RAS aquaculture pond 1 is provided with two opposing guide grooves 52, and guide strips 55 are fixed on the outer walls of the two supports 10. The guide strips 55 are embedded in the guide grooves 52. The bottom of the crossbeam 11 is connected to the traction rope guide tube II 56. Several traction rope diversion tubes 58 are fixed in the traction rope guide tube II 56. Several diversion traction ropes 60 are connected to the traction rope I 59. The diversion traction ropes 60 pass through the traction rope diversion tubes 58 in sequence and are fixed on the folding fishing net 14. The traction rope diversion tubes 58 can effectively prevent the diversion traction ropes 60 from getting tangled together.

[0082] like Figure 11 As shown, the folding fishing net 14 includes a fixed section 14-1 and a folding section 14-2. The fixed section 14-1 and the folding section 14-2 are connected by a hinge 61. An iron block 62 is fixed to the front end of the folding section 14-2, and the bottom end of the diversion traction rope 60 is fixed to the iron block 62.

[0083] Without external force, the folded sections 14-2 of the fishing net hang down naturally and adhere to the inner wall of the funnel-shaped sludge collection trough 2. When the traction rope I59 is pulled, several folded sections 14-2 of the fishing net are pulled to a closed state.

[0084] like Figure 12 and Figure 13As shown, the telescopic rod 74 has connecting pipes 75 fixed at both ends, and the rotating shaft II 24 has a connecting pipe slot 86 at one end. The connecting pipe 75 has two opposing "L"-shaped sliding grooves III 77 and two opposing locking block slots II 76 on its side wall. The locking block slots II are located below the "L"-shaped sliding grooves III 77. A spring column IV 80 is bolted inside the connecting pipe 75, and a conical extrusion block 79 is connected to the bottom of the spring column IV 80. A conical extrusion block 79 is fixed to the side wall of the conical extrusion block 79. Two opposing "T"-shaped pins Ⅲ81 pass through the "L"-shaped groove Ⅲ77. Two opposing arc-shaped plates 82 are connected to the inner wall of the connecting pipe 75 by spring column Ⅴ83. An arc-shaped locking block 84 is fixed on the outer end face of the arc-shaped plate 82. The arc-shaped locking block 84 is opposite to the locking block through groove Ⅱ76. Two opposing locking block limiting grooves 78 are provided on the inner wall of the connecting pipe slot 86. The locking block limiting grooves 78 match the arc-shaped locking block 84.

[0085] The diameter of the upper surface of the conical extrusion block 79 is the same as the inner diameter of the connecting pipe 75. The bottom of the conical extrusion block 79 has an arc-shaped structure, and the upper surface of the arc plate 82 has an outwardly curved arc-shaped structure.

[0086] Without external force, the arc-shaped locking block 84 on the arc plate 82 is located inside the connecting pipe 75. After the main transmission mechanism 4 and the driven transmission mechanism I5 / driven transmission mechanism II6 are fixed on the double guide rail 3, the telescopic rod 74 is adjusted to a suitable length, and the connecting pipes 75 at both ends of the telescopic rod 74 are respectively embedded in the connecting pipe slots 86 in the rotating shaft II24 on the main transmission mechanism 4 and the driven transmission mechanism I5. At the same time, the "T" pin III81 is moved along the vertical section of the "L" shaped slide groove III77 and rotated to the horizontal section of the "L" shaped slide groove III77. At this time, the spring column IV80 is in a stretched state, the conical extrusion block 79 is squeezed between the two arc plates 82, and the two arc plates 82 are squeezed outward. The arc-shaped locking block 84 on the arc plate 82 is squeezed out of the locking block through groove II76 and locked in the locking block limiting groove 78. The telescopic rod 74 is fixed between the main transmission mechanism 4 and the driven transmission mechanism I5 / driven transmission mechanism II6.

[0087] Example 1: Harvesting in RAS aquaculture pond 1 located on the left side of the dual guide rails 3.

[0088] The main transmission mechanism 4 and the driven transmission mechanism I5 are adopted.

[0089] Using PLC controller 85 to debug three-phase servo motor I12 and three-phase servo motor II7, it was determined that when three-phase servo motor I12 rotates clockwise for X1s, several folded sections 14-2 of the fishing net are pulled into a closed state; when three-phase servo motor II7 rotates clockwise for X2s, the fishing net fixing frame 9 is lifted off the water surface.

[0090] Move the main drive mechanism 4 and the slave drive mechanism I5 along the double guide rail 3 to the arc-shaped slot 19 of the guide wheel on the double guide rail 3, and fix the main drive mechanism 4 and the slave drive mechanism I5 on the double guide rail 3. Then connect the telescopic rod 74 between the main drive mechanism 4 and the slave drive mechanism I5. Then use the laser 40 to accurately position the positioning module I8 on the main drive mechanism 4 and the slave drive mechanism I5 and the two positioning modules II13 on the RAS breeding pond 1. Then connect the traction rope II28 and the traction rope III50 through the spring buckle 48.

[0091] Turn on the switch on the PLC controller 85 that controls the three-phase servo motor I12. The three-phase servo motor I12 rotates clockwise for X1s, and several folded sections 14-2 of the fishing net are pulled into a closed state. The PLC controller 85 controls the three-phase servo motor I12 to stop. At the same time, the PLC controller 85 controls the three-phase servo motor II7 to start and rotate clockwise for X2s. The fishing net fixing frame 9 is lifted out of the water surface, and the whiteleg shrimp in the RAS aquaculture pond 1 are scooped up by the folded fishing net 14.

[0092] Example 2: Harvesting in RAS aquaculture pond 1 located on the right side of the dual guide rails 3.

[0093] The main transmission mechanism 4 and the driven transmission mechanism II 6 are adopted.

[0094] The three-phase servo motor I12 and the three-phase servo motor II7 were debugged according to the method in Example 1.

[0095] Rotate the motor connection box 4-2 on the main drive mechanism 4 horizontally relative to the double guide rail connection plate 4-1 until the positioning module I8 on the main drive mechanism 4 and the positioning module I8 on the slave drive mechanism II6 are on the same side. Then move the main drive mechanism 4 and the slave drive mechanism II6 along the double guide rail 3 to the guide wheel arc groove 19 on the double guide rail 3, and fix the main drive mechanism 4 and the slave drive mechanism II6 on the double guide rail 3. Then connect the telescopic rod 74 between the main drive mechanism 4 and the slave drive mechanism II6. Then use the laser 40 to accurately position the positioning module I8 on the main drive mechanism 4 and the slave drive mechanism II6 and the two positioning modules II13 on the RAS breeding pond 1. Then connect the traction rope II28 and the traction rope III50 through the spring buckle 48.

[0096] Turn on the switch on the PLC controller 85 that controls the three-phase servo motor I12. The three-phase servo motor I12 rotates clockwise for X1s, and several folded sections 14-2 of the fishing net are pulled into a closed state. The PLC controller 85 controls the three-phase servo motor I12 to stop. At the same time, the PLC controller 85 controls the three-phase servo motor II7 to start and rotate clockwise for X2s. The fishing net fixing frame 9 is lifted out of the water surface, and the whiteleg shrimp in the RAS aquaculture pond 1 are scooped up by the folded fishing net 14.

[0097] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0098] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A special harvesting assembly for RAS (Rapid Aquaculture) ponds of Litopenaeus vannamei, comprising several rows of RAS ponds (1) and a PLC controller (85), wherein the RAS ponds (1) are provided with funnel-shaped sludge collection troughs (2), characterized in that: A double guide rail (3) is provided between two adjacent rows of RAS aquaculture ponds (1). The double guide rail (3) is equipped with a main drive mechanism (4), a driven drive mechanism I (5) and a driven drive mechanism II (6). A telescopic rod (74) is connected between the main drive mechanism (4) and the driven drive mechanism I (5) / driven drive mechanism II (6). The main drive mechanism (4), the driven drive mechanism I (5) and the driven drive mechanism II (6) are all equipped with positioning modules I (8). The positioning modules I (8) on the driven drive mechanism I (5) and the driven drive mechanism II (6) are respectively set in opposite positions. A vertically movable fishing net fixing frame (9) is installed on the inner wall of the RAS aquaculture pond (1). Several folding fishing nets (14) and two A support frame (10) is provided, with a hollow crossbeam (11) installed between the two supports (10). A rotating shaft I (57) is installed inside the crossbeam (11). A traction rope I (59) is connected to the rotating shaft I (57). The traction rope I (59) is connected to the folding fishing net (14). A three-phase servo motor I (12) is installed on the support frame (10). The three-phase servo motor I (12) is electrically connected to the rotating shaft I (57). Two positioning modules II (13) are provided opposite to each other on the RAS aquaculture pond (1). A traction rope II (28) is connected to the positioning module I (8). A traction rope III (50) is connected to the positioning module II (13). The traction rope II (28) and the traction rope III (50) are connected by a spring buckle (48). The main transmission mechanism (4) includes a double guide rail connecting plate (4-1), a motor connecting box (4-2), and a conveyor working box I (4-3). The double guide rail connecting plate (4-1) is bolted to the motor connecting box (4-2). The conveyor working box I (4-3) is fixed on the motor connecting box (4-2) and communicates with the motor connecting box (4-2). A three-phase servo motor II (7) is connected to the motor connecting box (4-2). A rotating shaft II (24) is installed inside the motor connecting box (4-2). A rotating shaft III (25) is installed inside box I (4-3). Gear discs (26) are fixed on both rotating shaft II (24) and rotating shaft III (25). A conveyor belt (27) is sleeved between the two gear discs (26). The traction rope II (28) is fixed on rotating shaft III (25). The positioning module I (8) is movably connected to the conveyor box I (4-3). Two guide wheels (16) are installed at the bottom of the double guide rail connecting plate (4-1). The two guide wheels (16) are embedded in the double guide rail (3). The transmission mechanism I (5) includes a shaft II working box (5-1) and a conveying working box II (5-2). The shaft II working box (5-1) also houses a shaft II (24). The shaft II (24) in the shaft II working box (5-1) is connected to the shaft II (24) located in the motor connection box (4-2) via the telescopic rod (74). The conveying working box II (5-2) has the same structure as the conveying working box I (4-3). The bottom of the shaft II working box (5-1) also has two guide wheels (16), which are embedded in the double guide rails (3). The driven transmission mechanism II (6) has the same structure as the driven transmission mechanism I (5). Both the three-phase servo motor I (12) and the three-phase servo motor II (7) are electrically connected to the PLC controller (85).

2. The special harvesting component for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: The inner bottom surface of one of the double guide rails (3) is provided with several pairs of guide wheel arc-shaped slots (19), and a block through groove I (20) is provided on its side wall. The guide wheel arc-shaped slots (19) correspond to the block through groove I (20). A spring support (15) is connected to the guide wheel (16). The spring support (15) is fixed to the bottom of the double guide rail connecting plate (4-1) or the rotating shaft II working box (5-1). A pin groove (63) is provided on the front side wall of the double guide rail connecting plate (4-1) or the rotating shaft II working box (5-1). A welding block through groove (23) is provided at the bottom of the pin groove (63). Two opposing "L"-shaped sliding grooves I (64) are provided on the inner wall of the pin groove (63). A "T"-shaped pin I (17) is inserted into the pin groove (63). Two clips I (67) are fixed on the side wall of the "T"-shaped pin I (17). The two clips I (67) are respectively embedded in the two "L"-shaped sliding grooves I (64). A locking block inner plate (65) is bolted to the inner end face of the "T"-shaped pin I (17). A spring column I (66) is connected between the inner end face of the locking block inner plate (65) and the inner end face of the pin groove (63). A convex locking block (18) is connected to the bottom of the locking block inner plate (65) through a welding block (87). The welding block (87) passes through the welding block through groove (23). The convex part of the convex locking block (18) matches the locking block through groove I (20).

3. The special harvesting component for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: The motor connecting box (4-2) is provided with two pin through grooves (68), and the double guide rail connecting plate (4-1) is provided with two pin limiting grooves (22). The pin through grooves (68) correspond to the pin limiting grooves (22). The pin through grooves (68) are provided with two opposing "L"-shaped sliding grooves II (69). The pin through grooves (68) are embedded with "T"-shaped pins II (21). The length of the "T"-shaped pins II (21) is greater than the length of the pin through grooves (68). The "T"-shaped pins II (21) are provided with thin pin segments (71). A spring post II (72) is fitted on the fine pin segment (71). Two opposing clips II (73) are fixed on the side wall of the "T"-shaped pin II (21). The two clips II (73) are located at the bottom of the fine pin segment (71). The two clips II (73) are respectively locked in the two "L"-shaped sliding grooves II (69). A limit ring (70) is fixed in the pin through groove (68). The fine pin segment (71) passes through the limit ring (70). The upper end of the spring post II (72) is fixed on the bottom surface of the limit ring (70).

4. The special harvesting component for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: Two opposing "T"-shaped sliders (54) are fixed on the side wall of the fishing net fixing frame (9). One end of the traction rope III (50) is fixed on the "T"-shaped slider (54). Two "T"-shaped grooves (51) are provided on the inner wall of the RAS aquaculture pond (1). The "T"-shaped slider (54) is embedded in the "T"-shaped groove (51). Two traction rope through holes (53) are provided on the upper surface of the RAS aquaculture pond (1). The traction rope through holes (53) are connected to the "T"-shaped grooves (51). The positioning module II (13) includes an "L"-shaped pipe (45) and a laser positioning plate (46). The L-shaped pipe (45) is fixed on the surface of the fishing net fixing frame (9) and connected to the traction rope through hole (53). The laser positioning plate (46) is fixed on the L-shaped pipe (45). The laser positioning plate (46) is provided with a laser positioning point (47). The side wall of the laser positioning plate (46) is provided with a hook I (49-1). The traction rope III (50) passes through the traction rope through hole (53) and the L-shaped pipe (45) in sequence. The front end of the traction rope III (50) is connected to a spring buckle (48). The spring buckle (48) is hung on the hook I (49-1).

5. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: The positioning module I (8) includes an outer horizontal pipe (34-1), an inner horizontal pipe (34-2), a positioning plate (35), and a laser fixing plate (39). The inner horizontal pipe (34-2) is sleeved inside the outer horizontal pipe (34-1). The laser fixing plate (39) is fixed on the outer horizontal pipe (34-1). A laser (40) and a laser switch (41) are connected to the laser fixing plate (39). A pipe positioning disc (37) is fixed on the outer horizontal pipe (34-1). Two opposing pulleys (38) are connected to the disc (37). The positioning plate (35) is fixed to the inner end face of the inner horizontal pipe (34-2). A pressing block (42) is provided on the front end face of the inner horizontal pipe (34-2). A hook II (49-2) is fixed on the side wall of the pressing block (42). A pipe groove (30) is provided on the side wall of the conveying work box I (4-3) or the conveying work box II (5-2). The outer horizontal pipe (34-1) passes through the pipe groove (30). The upper and lower surfaces of the pipe groove (30) are... The surface is provided with a positioning plate groove (33), and the positioning plate (35) is embedded in the positioning plate groove (33). The two pulleys (38) abut against the upper and lower surfaces of the positioning plate groove (33) respectively. The positioning plate (35) is located inside the conveying work box I (4-3) or the conveying work box II (5-2). The inner side wall of the conveying work box I (4-3) or the conveying work box II (5-2) is provided with two pairs of locking tooth grooves (31). The two pairs of locking tooth grooves (31) are located above and below the pipe through groove (30) respectively. The outer end face of the positioning plate (35) is fixed with several pairs of teeth (36), the teeth (36) are matched with the tooth groove (31), a spring column III (43) is fixed between the pressing block (42) and the outer end face of the laser fixing plate (39), a hook II (49-2) is fixed on the side wall of the pressing block (42), the traction rope II (28) passes through the inner horizontal pipe (34-2), and the front end of the traction rope II (28) is provided with a through hole (44), the through hole (44) is hung on the hook II (49-2).

6. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 5, characterized in that: The inner wall of the conveying work box I (4-3) or the conveying work box II (5-2) is provided with a traction rope guide tube I (29). The traction rope guide tube I (29) is located above the pipe through groove (30). The bottom of the traction rope guide tube I (29) is provided with a traction rope through groove (32). The traction rope II (28) passes through the traction rope guide tube I (29) and exits from the traction rope through groove (32), and then enters the inner horizontal pipe (34-2).

7. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: The inner wall of the RAS aquaculture pond (1) is provided with two opposing guide grooves (52), and guide strips (55) are fixed on the outer walls of the two supports (10). The guide strips (55) are embedded in the guide grooves (52). The bottom of the crossbeam (11) is connected to the traction rope guide tube II (56). Several traction rope diversion tubes (58) are fixed in the traction rope guide tube II (56). Several diversion traction ropes (60) are connected to the traction rope I (59). The diversion traction ropes (60) pass through the traction rope diversion tubes (58) in sequence and are fixed on the folding fishing net (14).

8. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 7, characterized in that: The folding fishing net (14) includes a fixed section (14-1) and a folding section (14-2). The fixed section (14-1) and the folding section (14-2) are connected by a hinge (61). An iron block (62) is fixed at the front end of the folding section (14-2), and the bottom end of the diversion traction rope (60) is fixed on the iron block (62).

9. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 1, characterized in that: The telescopic rod (74) is fixed with connecting pipes (75) at both ends. One end of the rotating shaft II (24) is provided with a connecting pipe slot (86). The side wall of the connecting pipe (75) is provided with two opposing "L"-shaped sliding grooves III (77) and two opposing locking block through grooves II (76). The locking block through grooves II are located below the "L"-shaped sliding grooves III (77). The connecting pipe (75) is bolted with a spring column IV (80). The bottom of the spring column IV (80) is connected with a conical extrusion block (79). Two opposing... The "T" pin Ⅲ (81) is connected to the "L" shaped groove Ⅲ (77). Two opposing arc plates (82) are connected to the inner wall of the connecting pipe (75) by spring column Ⅴ (83). An arc-shaped locking block (84) is fixed on the outer end face of the arc plate (82). The arc-shaped locking block (84) is opposite to the locking block through groove Ⅱ (76). Two opposing locking block limiting grooves (78) are provided on the inner wall of the connecting pipe slot (86). The locking block limiting grooves (78) match the arc-shaped locking block (84).

10. A special harvesting assembly for RAS culture ponds of Litopenaeus vannamei according to claim 9, characterized in that: The upper surface diameter of the conical extrusion block (79) is the same as the inner diameter of the connecting pipe (75). The bottom of the conical extrusion block (79) is an arc-shaped structure, and the upper surface of the arc plate (82) is an outwardly curved arc-shaped structure.

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