Longline oyster farming efficient harvesting vessel

Abstract

The purpose of the present invention is to provide an efficient harvesting vessel for longline cultured oysters, comprising a culture rope and a hull; the culture rope comprises a longline, and both sides of the hull are provided with a dividing device for separating the cultured products on the culture rope and a guiding mechanism for guiding the oyster rope and the float, and the dividing device comprises a separation chamber, and a plurality of groups of extrusion separation columns gradually approaching each other are provided on both sides of the channel in the separation chamber. The present invention relates to the field of aquaculture technology, and utilizes the buoyancy, tension and compressibility of water in its physical properties to achieve lossless separation, cleaning and buffering protection during oyster harvesting. High-pressure water flow is used to impact the longline and oysters to achieve the purpose of efficient lossless separation. The guiding mechanism can prevent the culture rope from being entangled in the working equipment, and cooperates with the separation chamber for online oyster stripping to realize fully automatic mechanized harvesting of oysters, without the need to cut the oyster rope, manual handling, or subsequent processing, which is convenient, fast, safe and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of longline culture product harvesting, in particular to a high-efficiency longline culture oyster harvesting vessel. Background Art

[0002] Artificial oyster farming typically requires longlines, buoys, droplines, and shell-holding devices. When oysters need to be harvested, as shown in Patent Document 3, a harvesting vessel (harvesting vessel) approaches the longline and uses a hook to suspend a length of the longline between two pulleys. Workers then cut the oysters and stack them in a hold. This solution eliminates the need for manual longline hauling and reduces labor.

[0003] As shown in Patent Document 4, in order to reduce the number of workers and labor, mechanized harvesting and transportation are adopted, which reduces the steps of manual transportation into the cabin and further simplifies the oyster harvesting process.

[0004] In addition, as shown in Patent Document 1, a power pulley is provided to select ordinary low-position harvesting or high-position harvesting according to the actual sampling situation (such as the degree of attachment of oysters, whether they are easy to fall off, etc.), thereby enhancing the monitorability of the harvesting situation.

[0005] Existing patent literature

[0006] Patent Document 1: Application date: June 8, 2017, application number: 201710431244.9

[0007] Patent Document 2: Application date: September 19, 2019, Application number: 201921559429.9 Patent Document 3: Application date: December 28, 2018, Application number: 201811617448.2 Patent Document 4: Application date: June 8, 2017, Application number: 201710425750.7

[0008] After summarizing the following

[0009] When peeling oysters, Patent Documents 1, 3, and 4 have the problem of requiring manual or automated cutting of the oyster rope before peeling the oysters on board a ship or on land. Therefore, as shown in Patent Document 2, a peeling device is provided that peels the cultured oysters by rotating two opposing peeling rollers. The purpose of this is to reduce the number of manual peeling steps and further simplify the harvesting process.

[0010] However, when peeling oysters, the two rotating peeling rollers crush the oysters, significantly reducing the number of good products. There's also the problem of having to cut the oyster rope before peeling the oysters attached to it, and then manually hooking the oyster rope. This is because the oyster rope and the rope connecting the float are both connected to the stretch line, and they can get tangled around the rollers during movement. Therefore, they must be cut first, collected, and then tied back together. However, if the oyster rope is cut every time the oyster is harvested, it will become shorter and shorter with each cut, making it unusable. This is also time-consuming.

[0011] Therefore, it is necessary to provide an efficient longline oyster harvesting vessel to solve the problem of needing to cut the oyster rope and then peel it off, so as to achieve the effect of online separation of oysters without cutting the oyster rope. Summary of the Invention

[0012] In view of the shortcomings of the existing technology, the present invention provides an efficient longline culture oyster harvesting vessel, which solves the problem that the existing oyster harvesting vessels cannot separate oysters online without cutting the oyster rope.

[0013] To achieve the above objectives, the present invention is implemented through the following technical solutions: a longline aquaculture oyster efficient harvesting vessel, comprising a culturing rope and a hull; the culturing rope comprises a longline, on which oyster ropes and floats are arranged at intervals; the hull is provided with a crane and a pulley for lifting the longline; and both sides of the hull are provided with a splitting device for separating the cultured material on the culturing rope and a guiding mechanism for guiding the oyster rope and float.

[0014] The separating device includes a separation chamber, a passage for the oyster rope to pass through is provided in the middle of the separation chamber, a plurality of groups of squeezing separation columns are provided on both sides of the passage and gradually approach each other, a nozzle assembly is provided on the top of the separation chamber to cooperate with the squeezing separation columns, and the nozzle assembly is connected to a suction pump through a water pipe;

[0015] A lateral conveyor belt is provided below the splitting device to receive and transport the aquacultured products to the hull, and a receiving track is provided at the tail of the lateral conveyor belt. The oysters are squeezed and separated from the oyster rope by a squeezing separation column, without cutting the oyster rope before splitting.

[0016] In the efficient longline oyster harvesting vessel of the present invention, the nozzle assembly preferably includes a low-pressure nozzle and two sets of high-pressure nozzles, and the extrusion separation columns include a primary extrusion separation column, a secondary extrusion separation column, and a tertiary extrusion separation column. The low-pressure nozzle is disposed opposite the primary extrusion separation column, and the two sets of high-pressure nozzles are disposed opposite the secondary extrusion separation column and the tertiary extrusion separation column, respectively. The water sprayed by the nozzle assembly serves to close the oysters and detach them from the oyster rope.

[0017] In the present invention's efficient longline oyster harvesting vessel, the primary, secondary, and tertiary squeezing and separation columns are preferably arranged parallel to one another, and the primary, secondary, and tertiary squeezing and separation columns form an internal angle of 72° with the horizontal end surface of the bottom lateral conveyor belt. This design of three sets of squeezing and separation columns allows the oysters to be gradually peeled from the outside to the center as the oyster rope passes through the center.

[0018] In the longline oyster harvesting vessel of the present invention, the guide mechanism preferably includes an oyster rope path changer fixedly connected to the pulley, a float path changer fixedly connected to the separation chamber, and an oyster rope arrangement rack fixedly connected to the rear of the separation chamber. This prevents the oyster rope and float from becoming entangled in the equipment.

[0019] In the longline cultured oyster efficient harvesting boat of the present invention, the oyster rope channel changer is preferably an arc-shaped rod, with a lap joint portion for hooking up the oyster rope and an outflow portion for lowering the oyster rope respectively provided at both ends.

[0020] In the longline cultured oyster efficient harvesting boat of the present invention, the float channel changer is preferably a long rod with downwardly curved portions bent toward the boat body at both ends.

[0021] In the longline cultured oyster efficient harvesting boat of the present invention, the oyster rope arrangement frame is preferably composed of two relatively parallel vertical beams and a plurality of horizontal beams arranged inside the vertical beams.

[0022] The efficient longline oyster harvesting vessel of the present invention preferably has a material guide platform connected to the output end of the lateral conveyor belt on the hull, and a separator connected to the discharge end of the material guide platform. The separator includes opposing brackets, within which a steel mesh cage is rotatably connected. The brackets are equipped with a power device that drives the steel mesh cage to rotate via a belt, and the inner wall of the steel mesh cage is provided with a separating blade. A large-diameter pipe is provided above the bracket, and the large-diameter pipe is connected to a water pump via a hose. A large-diameter water spray hole is provided below the large-diameter pipe to spray water into the steel mesh cage. This allows for further separation of the oysters.

[0023] The efficient longline oyster harvesting vessel of the present invention is preferably provided with a bottom conveyor belt below the separator, and a shell crusher is provided at the output end of the bottom conveyor belt, so that the residue can be directly crushed to achieve pollution-free treatment.

[0024] The efficient longline oyster harvesting vessel of the present invention preferably has a lifting and retracting system for displacing a splitting device, a guide device, and a lateral conveyor belt on both sides of the hull. The lifting and retracting system includes a main frame fixedly connected to the splitting device and the lateral conveyor belt, and a frame assembly connected to the hull. The frame assembly includes a lower frame fixedly connected to the outer wall of the hull and an upper frame arranged opposite the lower frame. The upper frame is provided with a side slide fixedly connected to the hull on the inner side. A hydraulic pull rod is fixedly connected to the hull for driving the upper frame to move within the side slide. A lifting hydraulic rod is provided on the inner side of the upper frame fixedly connected to the hull. The output end of the lifting hydraulic rod is connected to a roller, and a steel chain is connected to the roller. One end of the steel chain is fixedly connected to the hull, and the other end is fixedly connected to a bracket that can move up and down within the upper and lower frames. The main frame is fixedly connected to the bracket. This allows the splitting device, guide device, and lateral conveyor belt to be retracted onto the hull deck, improving the safety of the vessel during navigation.

[0025] Beneficial effects

[0026] The efficient longline oyster harvesting vessel provided by the present invention utilizes the physical properties of water, including buoyancy, tension, and compressibility, to achieve non-destructive separation, cleaning, and buffering during oyster harvesting. High-pressure water jets impact the longline and oysters, achieving efficient, non-destructive separation. A guide mechanism prevents the longline from becoming entangled in the working equipment. Combined with a separation chamber for online oyster stripping, this allows for fully automated, mechanized oyster harvesting, eliminating the need for cutting oyster ropes, manual handling, or subsequent processing. This is a convenient, fast, safe, and efficient process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a side view of the hull of the present invention;

[0028] Figure 2 This is a top view of the hull of the present invention;

[0029] Figure 3 This is a schematic structural diagram of the oyster rope lane changer of the present invention;

[0030] Figure 4 This is a top view of the separation bin of the present invention;

[0031] Figure 5 This is a schematic structural diagram of the separator of the present invention;

[0032] Figure 6 For the present invention Figure 5 Left view;

[0033] Figure 7 This is a front view of the lifting and retracting system of the present invention;

[0034] Figure 8 It is the left view of the lifting and contracting system of the present invention.

[0035] Explanation of symbols in the figure

[0036] 1. Oyster rope, 2. Boat crane, 3. Oyster rope channel changer, 31. Joint, 32. Outflow, 4. Pulley, 5. Float channel changer, 6. Lifting and retraction system, 61. Upper frame, 62. Roller, 63. Lifting hydraulic rod, 64. Steel chain, 65. Bracket, 66. Lower frame, 67. Hydraulic pull rod, 68. Side slide, 7. Low-pressure nozzle, 8. High-pressure nozzle, 9. Separation chamber, 10. Bottom conveyor belt, 11. Separation Machine, 12. Oyster rope arrangement rack, 13. Float, 14. Float rope, 15. Receiver track, 16. Lateral conveyor belt, 17. Hull, 18. Shell crusher, 19. Material guide table, 20. Primary extrusion separation column, 21. Secondary extrusion separation column, 22. Tertiary extrusion separation column, 23. Water pipe, 24. Suction pump, 25. Channel, 26. Separation knife, 27. Large-diameter pipe, 28. Large-diameter water spray hole, 29. Separation knife. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. As long as the effects of the present invention can be exerted, various changes can be made to the embodiments.

[0038] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0039] Example 1

[0040] Reference Figure 1-6 The efficient longline oyster harvesting vessel of this embodiment will be described. The efficient longline oyster harvesting vessel comprises a cultivation rope and a hull 17 . The hull 17 is provided with a crane 2 and a pulley 4 for hoisting a longline 14 .

[0041] Both sides of the hull 17 are equipped with splitting devices for separating the aquaculture products and guiding mechanisms for guiding the aquaculture products. This allows for direct separation of the aquaculture products, eliminating the need to cut the oyster rope 1 before splitting. The guiding mechanisms guide the float 13 and the oyster rope 1, preventing them from becoming entangled in the pulley 4. Furthermore, the oyster rope 1, once freed from the oysters, is organized to prevent it from falling into or becoming entangled in the lateral conveyor belt 16.

[0042] The dividing device includes a separation chamber 9, which includes two shells. The two shells are arranged opposite to each other, and a channel 25 is provided in the middle for the oyster rope 1 to pass through. The bottoms of the two sides of the two shells are connected, and the bottoms of the two shells are opened with openings for the oysters to fall onto the lateral conveyor belt 16.

[0043] Within the separation chamber 9, multiple sets of progressively closer extrusion columns are positioned on either side of the channel 25. As the oyster rope 1 carrying the oysters passes through the channel 25, the columns squeeze and detach the oysters from the rope 1. A spray head assembly is located at the top of the separation chamber 9, cooperating with the columns. The water sprayed by the spray head assembly closes the oysters and detaches them from the rope 1. The spray head assembly is connected to a suction pump 24 via a water pipe 23. This pump draws seawater through the pipe 23 and delivers it to the spray head assembly. A pressure regulating valve is located at the junction of the spray head assembly and the water pipe to adjust the spray pressure.

[0044] The extrusion and separation columns include a primary extrusion and separation column 20, a secondary extrusion and separation column 21, and a tertiary extrusion and separation column 22. The gap between two primary extrusion and separation columns 20 is 440 cm. The gap between two secondary extrusion and separation columns 21 is 300 cm. The gap between two tertiary extrusion and separation columns 22 is 80 cm. This design of three sets of extrusion and separation columns allows the oyster rope 1 to be passed through the center, gradually peeling the oysters from the outside to the center.

[0045] The nozzle assembly includes a low-pressure nozzle 7 and two sets of high-pressure nozzles 8. The low-pressure nozzle 7 is positioned opposite the primary extrusion and separation column 20, while the two sets of high-pressure nozzles 8 are positioned opposite the secondary extrusion and separation column 21 and the tertiary extrusion and separation column 22, respectively. The low-pressure nozzle 7 is used to close the oysters. The two sets of high-pressure nozzles 8 are used to release the oysters from the oyster rope 1.

[0046] The primary, secondary, and tertiary squeezing and separation columns 20, 21, and 22 are arranged parallel to each other, and the angle between these columns and the horizontal end surface of the bottom lateral conveyor belt 16 forms a 72° angle. By arranging the three sets of squeezing and separation columns at an angle, the oyster ropes 1 are gradually separated from top to bottom as they pass through, while also allowing the water jet from the nozzle assembly to directly impact the portion of the oyster rope 1 to be separated. It should be noted that the number of squeezing and separation columns can be increased or decreased according to harvesting needs, and their angle with the horizontal end surface of the bottom lateral conveyor belt 16 can be adjusted accordingly.

[0047] The aquaculture rope comprises a longline 14 , on which oyster ropes 1 and floats 13 are arranged at intervals.

[0048] Guide mechanisms for guiding the oyster rope 1 and the float 13 are provided on both sides of the hull 17 .

[0049] The guide mechanism includes an oyster rope changer 3 fixedly connected to the pulley 4, a float changer 5 fixedly connected to the separation chamber 9, and an oyster rope arrangement rack 12 fixedly connected to the rear of the separation chamber 9.

[0050] The oyster rope changer 3 is a curved rod with a hook 31 at each end for hooking up the oyster rope 1 and an outflow 32 at each end for releasing the oyster rope 1. When the oyster rope 1 approaches the pulley 4, the hook 31 of the oyster rope changer 3, which rotates with the pulley 4, hooks the oyster rope 1 away from the pulley 4. The oyster rope 1 slides along the curved back of the oyster rope changer 3 and finally escapes from the oyster rope changer 3 at the outflow 32. This prevents the oyster rope 1 from becoming entangled in the pulley 4 when the oyster rope 14 passes over it.

[0051] The float channel changer 5 is a long rod with downwardly curved sections at both ends that bend toward the hull 17. The front end of the float channel changer 5 is close to the oyster rope channel changer 3, and the rear end extends to the rear side of the rear pulley 4. Because the extension line 14 has already left the sea level, the float 13 is now falling. At this time, the downwardly curved section at the front end of the float channel changer 5 hooks the rope of the float 13. As the extension line 14 moves, the rope of the float 13 moves along the outer wall of the float channel changer 5, preventing the float 13 from entering the separation chamber 9. Finally, the downwardly curved section at the rear end separates from the float channel changer 5.

[0052] The rope management rack 12 consists of two parallel vertical beams and several horizontal beams disposed inside the vertical beams. To prevent the ropes 1 from falling onto the upwardly inclined lateral conveyor belt 16 after being released from the oysters and causing accidents, the rope management rack 12 is used to ensure that the ropes 1 are always positioned above the rack 12 and do not sag.

[0053] Below the splitting device is a lateral conveyor belt 16 that receives and transports the oysters to the hull 17. A receiving track 15 is located at the rear of the lateral conveyor belt 16. The receiving track 15 is pivotally connected to the lateral conveyor belt 16. Adjusting the angle of the receiving track 15, when tilted upward, ensures that the oysters that fall first land on the lateral conveyor belt 16.

[0054] The hull 17 is provided with a guide platform 19 connected to the output end of the lateral conveyor belt 16, and the discharge end of the guide platform 19 is connected to the separator 11. The guide platform 19 slides the collected oysters into the feed port of the separator 11.

[0055] The separator 11 includes oppositely arranged brackets, in which a steel mesh cage is rotatably connected. The bracket is provided with a power device that drives the steel mesh cage to rotate through a belt, and a separation knife 29 is provided on the inner wall of the steel mesh cage.

[0056] A large-diameter pipe 27 is provided above the bracket, and the large-diameter pipe 27 is connected to a water pump through a hose. A large-diameter water spray hole 28 for spraying water toward the steel mesh cage is provided below the large-diameter pipe 27.

[0057] By mechanical rotation, the separation knife 29 is brought into contact with the oysters that have not been completely separated, so that they are physically separated. The water gravity and buffering force formed by the ejected water flow play a role of physical squeezing and buffering friction for the oyster separation.

[0058] A bottom conveyor belt 10 is provided below the separator 11, and a shell crusher 18 is provided at the output end of the bottom conveyor belt 10. The separated shell residue falls onto the bottom conveyor belt 10 and is transported to the shell crusher 18 for direct crushing. After crushing, it can be directly used as poultry feed, achieving pollution-free treatment.

[0059] Example 2

[0060] Reference Figure 7-8 The longline cultured oyster efficient harvesting vessel of this embodiment will be described. The longline cultured oyster efficient harvesting vessel has a lifting and retracting system 6 for displacing the splitting device, the guide device and the lateral conveyor belt 16 .

[0061] The lifting and retracting system 6 includes a main frame fixedly connected to the dividing device and the lateral conveyor belt 16 and a frame assembly connected to the hull 17.

[0062] The frame assembly includes a lower frame 66 fixed to the outer wall of the hull 17 and an upper frame 61 arranged opposite to the lower frame 66. A side slide 68 fixed to the hull 17 is provided on the inner side of the upper frame 61. A hydraulic pull rod 67 for driving the upper frame 61 to move in the side slide 68 is fixed on the hull 17. A lifting hydraulic rod 63 fixed to the hull 17 is provided on the inner side of the upper frame 61. The output end of the lifting hydraulic rod 63 is connected to a roller 62, and a steel chain 64 is overlapped on the roller 62. One end of the steel chain 64 is fixed to the hull 17, and the other end is fixed to a bracket 65 that can move up and down in the upper frame 61 and the lower frame 66. The main frame is fixed to the bracket 65.

[0063] The operation method of the lifting and retracting system 6 is as follows: when the splitting device, guide device and lateral conveyor belt 16 need to be collected on the hull 17, the lifting hydraulic rod 63 is raised, and as the roller 62 rotates, the end of the steel chain 64 connected to the bracket 65 moves upward, and the bracket 65 carries the splitting device, guide device and lateral conveyor belt 16 up. After rising to the predetermined position (inside the upper frame 61), the hydraulic pull rod 67 retracts and pulls the upper frame 61 carrying the splitting device, guide device and lateral conveyor belt 16 inward, retracting them to the hull deck, thereby improving the safety of the ship during navigation. The reverse operation can deliver the splitting device, guide device and lateral conveyor belt 16 to both sides of the hull 17 for normal harvesting.

[0064] The present harvesting vessel is also suitable for harvesting a variety of longline aquaculture species. Other longline aquaculture species using the present harvesting vessel are also within the scope of protection of this application.

[0065] Although the embodiments of the present invention and their advantages have been described in detail, it must be understood that those skilled in the art can design different variations of the present invention or make changes and substitutions thereto without departing from the spirit and scope defined by the appended claims of the present invention. In addition, the scope of this patent application is not limited to the specific embodiments of the processes, equipment, manufacturers, compositions of matter, modes, methods and steps described in the specification. Those skilled in the art can understand from the content disclosed in the present invention that processes, machines, manufacturers, compositions of matter, modes, methods or steps, whether existing or to be developed in the future, can be utilized in accordance with the present invention as long as they can perform the same functions or achieve the same results as the embodiments described herein. Accordingly, the claims attached hereto are used to cover such processes, equipment, manufacturers, compositions of matter, modes, methods or steps within their scope.

Claims

1. An efficient longline oyster harvesting vessel, comprising a longline oyster cultivation vessel and a hull (17); The aquaculture rope comprises a longline (14), on which oyster ropes (1) and floats (13) are arranged at intervals; The hull (17) is provided with a ship crane (2) and a pulley (4) for lifting a longline (14), and is characterized in that: Both sides of the hull (17) are provided with a splitting device for separating the cultured products on the culture rope and a guiding mechanism for guiding the oyster rope (1) and the float (13); The splitting device comprises a separation chamber (9), a passage (25) for the oyster rope (1) to pass through is provided in the middle of the separation chamber (9), a plurality of groups of extrusion separation columns gradually approaching each other are provided on both sides of the passage (25) in the separation chamber (9), a nozzle assembly cooperating with the extrusion separation columns is provided on the top of the separation chamber (9), and the nozzle assembly is connected to a suction pump (24) via a water pipe (23); The nozzle assembly includes a low-pressure nozzle (7) and two groups of high-pressure nozzles (8); the extrusion separation column includes a primary extrusion separation column (20), a secondary extrusion separation column (21) and a tertiary extrusion separation column (22); the low-pressure nozzle (7) is arranged opposite to the primary extrusion separation column (20); and the two groups of high-pressure nozzles (8) are arranged opposite to the secondary extrusion separation column (21) and the tertiary extrusion separation column (22); A lateral conveyor belt (16) for receiving and conveying the cultured material to the hull (17) is provided below the dividing device, and a receiving track (15) is provided at the tail of the lateral conveyor belt (16); The hull (17) is provided with a material guide platform (19) connected to the output end of the lateral conveyor belt (16), and the discharge end of the material guide platform (19) is connected to a separator (11); The separator (11) comprises oppositely arranged brackets, a steel mesh cage is rotatably connected in the brackets, a power device is provided on the brackets for driving the steel mesh cage to rotate via a belt, and a separation knife (29) is provided on the inner wall of the steel mesh cage; A large-diameter pipe (27) is provided above the bracket, the large-diameter pipe (27) is connected to a water pump via a hose, and a large-diameter water spray hole (28) is provided below the large-diameter pipe (27) for spraying water toward the steel mesh cage; The hull (17) is provided with a lifting and contracting system (6) for displacing the dividing device, the guide device and the lateral conveyor belt (16) on both sides. The lifting and contracting system includes a main frame body fixedly connected to the dividing device and the lateral conveyor belt (16) and a frame assembly connected to the hull (17). The frame assembly includes a lower frame (66) fixedly connected to the outer wall of the hull (17) and an upper frame (61) arranged opposite to the lower frame (66). The inner side of the upper frame (61) is provided with a side slideway (68) fixedly connected to the hull (17). The hull (17) A hydraulic pull rod (67) is fixedly connected to the upper frame (61) for driving the upper frame (61) to move in the side slide (68). A lifting hydraulic rod (63) fixedly connected to the hull (17) is provided on the inner side of the upper frame (61). The output end of the lifting hydraulic rod (63) is connected to a roller (62). A steel chain (64) is overlapped on the roller (62). One end of the steel chain (64) is fixedly connected to the hull (17), and the other end is fixedly connected to a bracket (65) that can move up and down in the upper frame (61) and the lower frame (66). The main frame is fixedly connected to the bracket (65).

2. The efficient longline oyster harvesting vessel according to claim 1, characterized in that: The primary extrusion separation column (20), the secondary extrusion separation column (21), and the tertiary extrusion separation column (22) are arranged parallel to each other, and the internal angle between the primary extrusion separation column (20), the secondary extrusion separation column (21), and the tertiary extrusion separation column (22) and the horizontal end surface of the bottom lateral conveyor belt (16) is 72°.

3. The efficient longline oyster harvesting vessel according to claim 1, characterized in that: The guide mechanism comprises an oyster rope changer (3) fixedly connected to the pulley (4), a float changer (5) fixedly connected to the separation chamber (9), and an oyster rope arrangement rack (12) fixedly connected to the rear of the separation chamber (9).

4. The efficient longline oyster harvesting vessel according to claim 3, characterized in that: The oyster rope lane changer (3) is an arc-shaped rod, with a lap joint portion (31) for hooking up the oyster rope (1) and an outflow portion (32) for lowering the oyster rope (1) respectively provided at both ends.

5. The efficient longline oyster harvesting vessel according to claim 3, characterized in that: The floating channel changer (5) is a long rod with downwardly bent portions bent toward the hull (17) at both ends.

6. The efficient longline oyster harvesting vessel according to claim 3, characterized in that: The oyster rope arrangement frame (12) comprises two relatively parallel vertical beams and a plurality of horizontal beams arranged inside the vertical beams.

7. The efficient longline oyster harvesting vessel according to claim 1, characterized in that: A bottom conveyor belt (10) is provided below the separator (11), and a shell crusher (18) is provided at the output end of the bottom conveyor belt (10).

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