Mariculture rope hanging type product underwater harvesting device and harvesting system

Abstract

The utility model discloses an underwater harvesting device and harvesting system for marine culture rope hanging products, and relates to the technical field of harvesting devices, the underwater harvesting device comprises a lifting frame fixedly arranged at the bow end and / or the stern end of a ship body, and a box plate which is perpendicular to the lifting frame and can move up and down on the lifting frame is fixedly arranged on the face, opposite to the ship body, of the lifting frame. The end, away from the lifting frame, of the box plate serves as the front end, the other end of the box plate serves as the rear end, guiding and dragging mechanisms used for guiding the main rope and dragging the main rope are arranged on the two sides of the top face of the box plate, a conveying mechanism used for conveying oysters is arranged between the two guiding and dragging mechanisms, and cutters used for cutting seedling ropes are arranged at the front ends of the opposite faces of the two guiding and dragging mechanisms correspondingly. A guide unit used for shifting the floating ball to the outer side of the guide dragging mechanism is arranged on the rear portion of the cutting knife, and a gap allowing a floating ball rope to pass through is formed between the guide unit and the guide dragging mechanism. The oyster harvester can sink into water to harvest oysters, the harvesting efficiency is high, the resistance for dragging the main rope is smaller, and the main rope is not prone to being wound.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesting devices, in particular to an underwater harvesting device and a harvesting system for marine aquaculture rope-hanging products. Background Art

[0002] Marine aquaculture is a type of aquaculture production method that utilizes marine resources, including oysters, kelp, laver, asparagus and other marine organisms. Oysters are a general term for mollusks of the order Pinctada and family Ostridae, commonly known as sea oysters and raw oysters, and are a popular marine aquatic product.

[0003] Most of the existing oyster farming methods are to set two main ropes longitudinally on the horizontal plane, and then tie a number of parallel and transversely arranged seedling ropes (i.e., farming ropes) on the main ropes at intervals. The oysters grow on the seedling ropes. To ensure that the oysters do not sink too deep into the water, buoys need to be tied to the two ends of the seedling ropes according to the situation. When the oysters are mature, the salvage ship is usually driven to one end of the main rope, and the main rope is towed by the towing device on the ship, while driving the seedling rope to move toward the salvage ship. Then, the workers stand on the bow of the ship and use the hanging rod to lift the seedling rope together with the attached oysters, cut them off and put them into the baskets prepared in advance on the ship. This harvesting method mostly relies on manual labor, which is not only time-consuming and labor-intensive, but also has low harvesting efficiency.

[0004] The Chinese utility model patent with publication number CN206547666U discloses a fully automatic oyster harvesting boat, which includes a harvesting boat body and a harvesting device arranged at the front end of the harvesting boat body, the harvesting device includes a fence-type harvesting plate hingedly arranged on the harvesting boat body, a conveying sprocket extending from the bottom end of the fence-type harvesting plate to the top end thereof is arranged between the fence gaps of the fence-type harvesting plate, a downwardly inclined floating ball guide plate is connected to the bottom end of the fence-type harvesting plate, and a position near the floating ball guide plate on the upper surface of the fence-type harvesting plate is provided. There is a float separation device, and rope guide devices are also provided on the left and right sides of the fence-type harvesting plate. Circular cutting knives matching with the rope guide devices are provided on the left and right sides of the fence-type harvesting plate at positions corresponding to the rope guide devices. The fully automatic oyster harvesting boat drags the main rope through the rope guide device and the conveying sprocket, and then cuts the seedling rope through the circular cutting knife. In this process, the float separation device set therein can also separate the floats tied to the main rope to avoid collision with the cutting knife, thereby achieving the purpose of automatic harvesting of oysters and greatly improving the harvesting efficiency.

[0005] However, both the above-mentioned fully automatic oyster harvesting boat and manual harvesting involve pulling the seedling rope with oysters attached out of the water for harvesting. In this process, if the water flow speed is strong or the number and attachment density of oysters are too large, the seedling rope will encounter great resistance when being dragged out of the water, and the towing equipment may be easily overloaded or even damaged. In addition, the uneven speed when winding the main rope may cause the main rope to swing, and then the main rope may become entangled, which will not only cause a significant drop in the towing speed, but also affect the oyster harvesting efficiency.

[0006] In view of this, the inventor conducted in-depth research and optimization on the principle of the utility model previously applied for, which led to the creation of this case. Utility Model Content

[0007] The utility model provides an underwater harvesting device and a harvesting system for marine aquaculture rope hanging products, aiming to solve the problems of large resistance when pulling oysters out of the water, easy damage to towing equipment, easy entanglement when winding the main rope, and low harvesting efficiency when harvesting oysters.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] An underwater harvesting device for marine aquaculture rope-hanging products comprises a lifting frame fixedly arranged at the bow and / or stern of a hull, a box plate perpendicular to the lifting frame and capable of moving up and down on the lifting frame is fixedly arranged on the side of the lifting frame facing away from the hull, with the end of the box plate away from the lifting frame as the front and the other end as the rear, guide and towing mechanisms for guiding and towing a main rope are arranged on both sides of the top surface of the box plate, a conveying mechanism for conveying oysters is arranged between the two guide and towing mechanisms, and a cutter for cutting the seedling rope is arranged at the front end of the two guide and towing mechanisms facing each other, a guide unit for pushing a float to the outside of the guide and towing mechanism is arranged at the rear of the cutter, and a gap for the float rope to pass through is provided between the guide unit and the guide and towing mechanism.

[0010] Furthermore, the lifting frame includes an upright gantry, a lifting hydraulic cylinder arranged on the top of the gantry, lifting chains arranged on both sides of the gantry and a movable plate fixed to the output shaft of the lifting hydraulic cylinder. The first hydraulic cylinder is hinged on the side of the movable plate facing away from the gantry, and the output shaft of the first hydraulic cylinder is connected to the box plate.

[0011] Furthermore, the top surface of the box board is provided with a plurality of movable tracks lying horizontally along the left and right directions and arranged at intervals, and the movable tracks are respectively two first movable tracks arranged at the front of the box board top surface and two second movable tracks arranged at the rear of the box board top surface; the guide and towing mechanism includes a guide rope mechanism arranged on both sides of the front of the box board top surface and a rope towing mechanism arranged on both sides of the rear of the box board top surface, the guide rope mechanism is movably mounted on the first movable track, the rope towing mechanism is movably mounted on the second movable track, and the guide rope mechanism and the rope towing mechanism located on the same side of the box board are arranged in a straight line.

[0012] Furthermore, two second hydraulic cylinders are arranged horizontally along the left-right direction between the two above-mentioned rope guiding mechanisms, the movement directions of the output shafts of the two above-mentioned second hydraulic cylinders are opposite, and the output shafts of the two above-mentioned second hydraulic cylinders are respectively fixed to the rope guiding mechanisms they are facing; two third hydraulic cylinders are arranged horizontally along the left-right direction between the two above-mentioned rope dragging mechanisms, the movement directions of the output shafts of the two above-mentioned third hydraulic cylinders are opposite, and the output shafts of the two above-mentioned third hydraulic cylinders are respectively fixed to the rope dragging mechanisms they are facing.

[0013] Furthermore, the rope guiding mechanism is a rope guiding tube, the top surface of the rope guiding tube is recessed with a rope groove for the main rope to pass through, and the bottom surface of the rope guiding tube is recessed with a first guide groove for slidingly cooperating with the first movable track.

[0014] Furthermore, the guide unit comprises a vertical pole erected on the inner side of the guide rope mechanism, a semi-arc-shaped float guide plate is fixedly provided on the top surface of the vertical pole, and a free end of the float guide plate extends toward the inner side of the guide rope mechanism.

[0015] Furthermore, the rope towing mechanism includes a mounting plate, the bottom surface of which is recessed with a second guide groove for slidingly cooperating with the second movable rail, and the side surface of the mounting plate is provided with two chains arranged in an upper and lower spacing manner, the spacing between the two chains forms a channel for the main rope to pass through, and the inside of the two chains is provided with a sprocket that engages with the chain and drives the chain to rotate.

[0016] Furthermore, the above-mentioned conveying mechanism includes a parallel part parallel to the box plate and an inclined part inclined to the box plate, and the above-mentioned parallel part and the inclined part are connected by a hinge; the rear part of the above-mentioned box plate top surface is hinged with a fourth hydraulic cylinder, the above-mentioned fourth hydraulic cylinder is located below the inclined part, and the output shaft of the fourth hydraulic cylinder is hinged at the bottom of the inclined part.

[0017] Furthermore, four columns are erected on the top surface of the box board, and the four columns are located on the left and right sides of the top surface of the box board. The distance between the two columns on each side is equal, and a horizontal plate is fixed on the top of the four columns.

[0018] The utility model also includes a harvesting system for marine aquaculture rope-hung products, which includes a hull, a U-shaped opening recessed inwardly at the bow and / or stern of the hull, the underwater harvesting device mentioned above being fixedly arranged in the U-shaped opening, and an operating table for controlling the underwater harvesting device is also arranged on the hull on one side of the U-shaped opening.

[0019] From the above description of the structure of the utility model, it can be seen that the utility model has the following advantages:

[0020] The utility model provides a lifting frame which can be fixed on the bow end and / or the stern end of the hull, and the lifting frame is provided with a box plate which can move up and down relative to the lifting frame, and the box plate is provided with a guide rope mechanism for the main rope to pass and a rope towing mechanism for towing the main rope, and a conveying mechanism for conveying oysters is also provided between the guide rope mechanism and the rope towing mechanism, and a cutting knife for cutting the seedling rope is also provided on the opposite side of the guide rope mechanism, and a guiding unit for pushing the float to the outside of the guide rope mechanism is provided at the rear of the cutting knife. Through such an arrangement, when harvesting oysters, the box plate can sink into the water, and then the oysters are harvested underwater, thereby reducing the resistance of towing the seedling rope attached with oysters out of the water surface, and when the main rope is guided and towed by the guide rope mechanism and the rope towing mechanism, the main rope is not easy to swing and entangle, thereby greatly improving the harvesting efficiency of marine aquatic products, and also avoiding the situation that the towing equipment is overloaded and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the underwater harvesting device of the utility model.

[0022] Figure 2 The utility model is a schematic diagram of the structure of the underwater harvesting device installed on the harvesting system.

[0023] Figure 3 This is a schematic diagram of the structure of the utility model after the horizontal plate is removed.

[0024] Figure 4 It is a schematic diagram of the installation structure of the lifting frame of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the guide rope mechanism of the utility model.

[0026] Figure 6 It is a structural schematic diagram of the box board of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the box board removal rope towing mechanism of the utility model.

[0028] Figure numerals: 10-lifting frame; 11-gantry; 12-lifting hydraulic cylinder; 13-lifting chain; 14-movable plate; 15-first hydraulic cylinder; 20-box plate; 21-first moving track; 22-second moving track; 23-second hydraulic cylinder; 24-third hydraulic cylinder; 25-fourth hydraulic cylinder; 26-column; 27-cross plate; 30-rope guide mechanism; 31-rope guide tube; 32-rope groove; 33-first guide groove; 40-rope towing mechanism; 41-mounting plate; 411-second guide groove; 42-chain; 43-sprocket; 50-conveying mechanism; 51-parallel part; 52-inclined part; 60-cutting knife; 70-guide unit; 71-upright pole; 72-float guide plate; 80-hull; 81-U-shaped opening; 82-operating table. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] Reference Figures 1 to 4 An underwater harvesting device and harvesting system for marine aquaculture rope-hanging products, comprising a lifting frame 10 for fixing at the bow and / or stern of a ship, a box plate 20 which is perpendicular to the lifting frame 10 and can move up and down on the lifting frame 10 is fixedly arranged on the side of the lifting frame 10 facing away from the ship, with the end of the box plate 20 away from the lifting frame 10 as the front and the other end as the rear, and guide and towing mechanisms for guiding and towing the main rope are arranged on both sides of the top surface of the box plate 20, a conveying mechanism 50 for conveying oysters is arranged between the two guide and towing mechanisms, and a cutting knife 60 for cutting the seedling rope is arranged at the front end of the two guide and towing mechanisms facing each other, and the cutting knife 60 is arranged A guide unit 70 is provided at the rear for moving the float to the outside of the guide and towing mechanism. A gap is provided between the guide unit 70 and the guide and towing mechanism for the float rope to pass through. Through such an arrangement, the lifting frame 10 of the utility model can be fixed to the bow and / or stern of any hull. The fixing method can be welding or locking connection, and the box plate 20 can be translated up and down relative to the lifting frame 10. When oysters need to be harvested, the box plate 20 can move downward and sink into the water, and then the oysters are harvested in the water. In this way, the resistance is smaller when the main rope is towed, and the main rope is towed by the guide and towing mechanism, and the main rope will not be entangled, and the oyster harvesting efficiency is higher.

[0031] Reference Figures 1 to 4The lifting frame 10 includes an upright door frame 11, a lifting hydraulic cylinder 12 arranged on the top of the door frame 11, lifting chains 13 arranged on both sides of the door frame 11 and a movable plate 14 fixed to the output shaft of the lifting hydraulic cylinder 12. The movable plate 14 is hinged with a first hydraulic cylinder 15 on the side facing away from the door frame 11. There are two first hydraulic cylinders 15, and the output shafts of the two first hydraulic cylinders 15 are connected to the box plate 20. The structure of the lifting frame 10 is similar to that of the forklift door frame, so it will not be described in detail here, and it is only briefly drawn in the figure.

[0032] Reference Figures 1 to 4 The top surface of the box board 20 is provided with a plurality of movable tracks lying horizontally and arranged at intervals in the left-right direction, and the movable tracks are respectively two first movable tracks 21 arranged at the front of the top surface of the box board 20 and two second movable tracks 22 arranged at the rear of the top surface of the box board 20; the above-mentioned guide and dragging mechanism includes a guide rope mechanism 30 arranged at both sides of the front of the top surface of the box board 20 and a rope dragging mechanism 40 arranged at both sides of the rear of the top surface of the box board 20, the guide rope mechanism 30 is movably installed on the above-mentioned first movable track 21, the rope dragging mechanism 40 is movably installed on the above-mentioned second movable track 22, and the guide rope mechanism 30 and the rope dragging mechanism 40 located on the same side of the box board 20 are arranged in a straight line, and a guide rope mechanism 30 is arranged between the two guide rope mechanisms 30. There are two second hydraulic cylinders 23 arranged horizontally along the left and right directions, and the movement directions of the output shafts of the two second hydraulic cylinders 23 are opposite, and the output shafts of the two second hydraulic cylinders 23 are respectively fixed to the rope guide mechanisms 30 they are facing; two third hydraulic cylinders 24 arranged horizontally along the left and right directions are provided between the two rope towing mechanisms 40, and the movement directions of the output shafts of the two third hydraulic cylinders 24 are opposite, and the output shafts of the two third hydraulic cylinders 24 are respectively fixed to the rope towing mechanisms 40 they are facing. Through such an arrangement, the two rope guide mechanisms 30 and the two rope towing mechanisms 40 can adjust the spacing accordingly under the drive of the second hydraulic cylinders 23 and the third hydraulic cylinders 24, so as to be suitable for different marine aquatic product harvesting scenarios.

[0033] Reference Figures 1 to 5 The rope guide mechanism 30 is a rope guide tube 31, the top surface of which is recessed with a rope groove 32 for the main rope to pass through, and the bottom surface of the rope guide tube 31 is recessed with a first guide groove 33 for slidingly cooperating with the first movable track 21. The guide unit 70 includes a vertical rod 71 erected on the inner side of the rope guide mechanism 30, and a semi-arc-shaped float guide plate 72 is fixedly provided on the top surface of the vertical rod 71, and the free end of the float guide plate 72 extends to the inside of the rope guide mechanism 30. Through such an arrangement, when the rope towing mechanism 40 tows the main rope, the float guide plate 72 can move the float to the outside of the rope guide mechanism 30 to avoid the collision between the float and the cutting knife or the entanglement between the float rope and the main rope.

[0034] Reference Figures 1 to 7The rope dragging mechanism 40 includes a mounting plate 41, the bottom surface of which is recessed with a second guide groove 411 for slidingly cooperating with the second movable rail 22, and the side surface of the mounting plate 41 is provided with two chains 42 arranged in an upper and lower spacing manner, and the interval between the two chains 42 forms a channel for the main rope to pass through, and the inside of the two chains 42 is provided with a sprocket 43 that engages with the chain 42 and drives the chain 42 to rotate, and the sprocket 43 is driven by a motor. Because the motor driving the sprocket 43 to drag the rope is a prior art, it will not be described in detail here. When it is necessary to harvest oysters, the main rope floating on the water surface is passed through the channel between the chains 42, and then the motor is started to drag the main rope.

[0035] Reference Figures 1 to 7 The conveying mechanism 50 includes a parallel portion 51 parallel to the box board 20 and an inclined portion 52 inclined to the box board 20, and the parallel portion 51 and the inclined portion 52 are connected by a hinge; a fourth hydraulic cylinder 25 is hinged at the rear of the top surface of the box board 20, and the fourth hydraulic cylinder 25 is located below the inclined portion 52, and the output shaft of the fourth hydraulic cylinder 25 is hinged at the bottom of the inclined portion 52. Through such an arrangement, when the output shaft of the fourth hydraulic cylinder 25 is lifted or retracted, the inclined portion 2 of the conveying mechanism 50 will adjust the inclination angle accordingly. In this embodiment, the conveying mechanism 52 is a conveyor belt, which is composed of a pulley, a conveyor belt and a drive system. Since this structure is an existing conventional technical means, it will not be described in detail here.

[0036] Reference Figures 1 to 7 Four columns 26 are erected on the top surface of the box board 20. The four columns 26 are located on the left and right sides of the top surface of the box board 20. The distance between the two columns 26 on each side is equal, and a horizontal board 27 is fixed on the top of the four columns 26. When the box board 20 sinks into the water, the horizontal board 27 can be used for harvesting workers to stand.

[0037] Reference Figures 1 to 7 The utility model also includes a harvesting system for marine aquaculture rope-hung products, which includes a hull 80, the bow end and / or the stern end of the hull 80 is a concave structure, and the concave structure forms a U-shaped opening 81. The U-shaped opening 81 is fixedly connected with the underwater harvesting device as described above, and the length of the U-shaped opening 81 is consistent with the length of the box board 20. In this embodiment, the fixed connection method can be welding, locking connection, etc., and an operating table 82 for controlling the underwater harvesting device is also provided on the hull 80 on one side of the U-shaped opening 81.

[0038] Reference Figures 1 to 7The utility model is provided with a lifting frame 10 which can be fixed on the bow and / or stern of the hull 80, and a box plate 20 which can be moved up and down relative to the lifting frame 10 is provided on the lifting frame 10, a rope guide mechanism 30 for passing the main rope and a rope towing mechanism 40 for towing the main rope are provided on the box plate 20, a conveying mechanism 50 for conveying oysters is also provided between the rope guide mechanism 30 and the rope towing mechanism 40, and a cutting knife 60 for cutting the seedling rope is also provided on the opposite side of the rope guide mechanism 30, and a guiding unit 70 for pushing the float to the outside of the rope guide mechanism 30 is provided at the rear of the cutting knife 60. Through such an arrangement, when harvesting oysters, the box plate 20 can sink into the water, and then the oysters can be harvested underwater, and the resistance is smaller when the main rope is towed. After the main rope is guided and towed by the rope guide mechanism 30 and the rope towing mechanism 40, it is not easy to swing and entangle, and the harvesting efficiency is higher.

[0039] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An underwater harvesting device for marine aquaculture rope-hanging products, characterized by: It comprises a lifting frame for being fixedly arranged at the bow and / or stern of the hull, a box plate which is perpendicular to the lifting frame and can be translated up and down on the lifting frame is fixedly arranged on the side of the lifting frame facing away from the hull, with the end of the box plate away from the lifting frame as the front and the other end as the rear, guide and towing mechanisms for guiding and towing the main rope are arranged on both sides of the top surface of the box plate, a conveying mechanism for conveying oysters is arranged between the two guide and towing mechanisms, and cutting knives for cutting seedling ropes are arranged at the front ends of the two guide and towing mechanisms facing each other, a guide unit for pushing a buoy to the outside of the guide and towing mechanism is arranged at the rear of the cutting knife, and a gap for the buoy rope to pass through is provided between the guide unit and the guide and towing mechanism.

2. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 1 is characterized by: The lifting frame includes an upright gantry, a lifting hydraulic cylinder arranged on the top of the gantry, lifting chains arranged on both sides of the gantry and a movable plate fixed to the output shaft of the lifting hydraulic cylinder. A first hydraulic cylinder is hinged on a side of the movable plate facing away from the gantry, and the output shaft of the first hydraulic cylinder is connected to the box plate.

3. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 1 is characterized by: The top surface of the box board is provided with a plurality of movable tracks lying horizontally along the left and right directions and arranged at intervals, and the movable tracks are respectively two first movable tracks arranged at the front of the top surface of the box board and two second movable tracks arranged at the rear of the top surface of the box board; the guide and towing mechanism includes a guide rope mechanism arranged on both sides of the front of the top surface of the box board and a rope towing mechanism arranged on both sides of the rear of the top surface of the box board, the guide rope mechanism is movably mounted on the first movable track, and the rope towing mechanism is movably mounted on the second movable track, and the guide rope mechanism and the rope towing mechanism located on the same side of the box board are arranged in a straight line.

4. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 3 is characterized by: Two second hydraulic cylinders are arranged horizontally along the left and right directions between the two rope guiding mechanisms, the movement directions of the output shafts of the two second hydraulic cylinders are opposite, and the output shafts of the two second hydraulic cylinders are respectively fixed to the rope guiding mechanisms they are facing; two third hydraulic cylinders are arranged horizontally along the left and right directions between the two rope dragging mechanisms, the movement directions of the output shafts of the two third hydraulic cylinders are opposite, and the output shafts of the two third hydraulic cylinders are respectively fixed to the rope dragging mechanisms they are facing.

5. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 3 is characterized by: The rope guiding mechanism is a rope guiding tube, the top surface of the rope guiding tube is concavely provided with a rope groove for the main rope to pass through, and the bottom surface of the rope guiding tube is concavely provided with a first guiding groove for slidingly cooperating with the first moving track.

6. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 1 is characterized by: The guide unit comprises a vertical pole arranged upright on the inner side of the guide rope mechanism, a semi-arc-shaped float guide plate is fixedly provided on the top surface of the vertical pole, and a free end of the float guide plate extends toward the inner side of the guide rope mechanism.

7. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 3 is characterized by: The rope towing mechanism includes a mounting plate, the bottom surface of which is recessed with a second guide groove for slidingly cooperating with a second movable rail, and the side surface of the mounting plate is provided with two chains arranged in an upper and lower spacing manner, the spacing between the two chains forms a channel for the main rope to pass through, and the inside of the two chains are provided with sprockets that engage with the chains and drive the chains to rotate.

8. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 1 is characterized by: The conveying mechanism includes a parallel part parallel to the box plate and an inclined part inclined to the box plate, and the parallel part and the inclined part are connected by a hinge; a fourth hydraulic cylinder is hinged at the rear of the top surface of the box plate, and the fourth hydraulic cylinder is located below the inclined part, and the output shaft of the fourth hydraulic cylinder is hinged at the bottom of the inclined part.

9. The underwater harvesting device for marine aquaculture rope-hanging products according to claim 1 is characterized by: Four columns are vertically arranged on the top surface of the box board. The four columns are located on the left and right sides of the top surface of the box board. The distance between two columns arranged on each side is equal, and a horizontal plate is fixed on the top of the four columns.

10. A harvesting system for marine aquaculture rope-hanging products, characterized in that: It comprises a hull, wherein the bow end and / or the stern end of the hull are recessed inwardly with a U-shaped opening, an underwater harvesting device as claimed in any one of claims 1 to 9 is fixedly arranged in the U-shaped opening, and an operating platform for controlling the underwater harvesting device is also arranged on the hull on one side of the U-shaped opening.

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