A work ship and a work method for ecological restoration of a seaweed bed

Abstract

The application relates to the technical field of work boats, and discloses a work boat and a work method for sea grass bed ecological restoration, which comprises a ship body, an opening is arranged through the lower surface of the middle position of the ship body, a first rotating shaft is rotatably arranged between the inner walls of the opposite ends of the opening, and a plurality of guide rollers are equidistantly arranged on the outer surface of the first rotating shaft. When the sea bed is shallow or the sea bed surface has a rock layer, the sea grass seeds are not sowed, the waste of the sea grass seeds is avoided, the cost of the sea grass bed ecological restoration is reduced, and the soil is covered on the surface of the sea grass seed mud pill through a pressing plate, so that the sea grass seeds are not eaten by fish and shrimps in the sea.

Description

Technical Field

[0001] This invention relates to the field of work vessel technology, and in particular to a work vessel and work method for ecological restoration of seagrass beds. Background Technology

[0002] Seagrass beds have functions such as carbon reduction and oxygen production, and climate regulation. They can effectively absorb and fix carbon, nitrogen, phosphorus, and other substances in seawater, purifying the aquatic environment and playing an important role in marine carbon sequestration. Seagrass beds have extremely high productivity, serving as habitats, feeding grounds, and nurseries for marine organisms, and also weakening ocean waves and currents. However, due to factors such as climate change, storm surges, environmental pollution, disease, animal predation, and interspecific competition, global seagrass beds are decreasing at a rate of 7% per year, and to date, approximately 29% of seagrass beds have disappeared. The protection and restoration of seagrass beds has attracted great attention and has become one of the current hot topics in ecological restoration.

[0003] An existing automated device and method for ecological restoration of seagrass beds (publication number: CN116965321A) has at least the following drawbacks:

[0004] When using the aforementioned patent, the operator inserts the seaweed planting nozzle into the seabed and then sows seaweed seed pellets into the seabed mud through the nozzle. Since there are stones on the surface of the seabed mud, when the seaweed seed pellets are planted on the stones, they will be eaten by fish and shrimp in the sea because there is no mud covering them, resulting in waste of seaweed seeds and increasing the cost of seaweed bed ecological restoration. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a working vessel and method for ecological restoration of seagrass beds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A work vessel for ecological restoration of seagrass beds includes a hull. An opening is formed through the lower surface of the hull at its midpoint. A first rotating shaft is rotatably mounted between the inner walls of opposite ends of the opening. Multiple guide rollers are equidistantly fixed to the outer surface of the first rotating shaft. Two first support plates are symmetrically fixed to the upper surface of the hull near the front end. Two connecting shafts are symmetrically rotatably mounted on the outer surfaces of opposite sides of the two first support plates. Multiple winding wheels are sequentially fixed between the two connecting shafts. An annular winding groove is provided on the outer circumference of each winding wheel. A through hole is provided inside each winding wheel. A conveying pipe is fixedly connected to the inner wall of the through hole near the bottom end. The outer circumference of the guide rollers has a shape corresponding to the conveying pipe. The matching groove has a conveying pipe located inside it. An elliptical seeding block is fixedly installed at the bottom of the conveying pipe. The elliptical seeding block has a seeding hole inside, which is connected to a through hole through the conveying pipe. Two second support plates are symmetrically fixedly installed on the upper surface of the hull near the front end. A third rotating shaft is rotatably installed between the two second support plates. Multiple storage boxes are fixedly installed at equal intervals on the outer surface of the third rotating shaft. A partition is fixedly installed between the inner walls of opposite sides of the storage boxes. The storage boxes are divided into a front cavity and a rear cavity by the partition. A discharge pipe is fixedly installed at the bottom of the rear cavity of the storage box. The discharge pipe is connected to the rear cavity of the storage box, and the discharge end of the discharge pipe is connected to a through hole.

[0008] As a further embodiment of the present invention, a second guide tube is fixedly installed on the inner wall of the conveying pipe, and a second pull rope is slidably installed on the inner wall of the second guide tube. A circular groove is formed inside the elliptical seeding block, and a rotating rod is rotatably installed between the inner walls of opposite ends of the circular groove. The circular groove is connected to the seeding hole. The bottom end of the second pull rope is fixedly connected to the outer circumferential surface of the rotating rod. A square countersunk hole is formed on the outer surface of the annular winding groove of the take-up wheel. A square iron block is slidably installed on the inner wall of the square countersunk hole. The top end of the second pull rope penetrates the inner wall of the square countersunk hole and the bottom of the square iron block. The surface is fixedly connected, and a first spring is installed inside the square countersunk hole. The first spring is located between the square countersunk hole and the square iron block. The top end of the second pull rope is inserted into the first spring. Both ends of the rotating rod are fixedly installed with pressure plates through the outer surface of the elliptical seed block. An elastic telescopic rod is rotatably installed on the upper surface of the pressure plate. The other end of the elastic telescopic rod is rotatably installed with the outer surface of the elliptical seed block. The elliptical seed block has a drainage hole inside, which is connected to a circular groove. The water inside the circular groove can be drained through the drainage hole when the elliptical seed block is recovered.

[0009] As a further embodiment of the present invention, a square slide cylinder is fixedly installed on the outer surface of the feeding pipe near the discharge end, a first guide tube is fixedly installed between the storage box and the square slide cylinder, a first pull rope is slidably installed on the inner wall of the first guide tube, an electromagnet is slidably installed on the inner wall of the square slide cylinder, the bottom end of the first pull rope passes through the inner wall of the square slide cylinder and is fixedly installed on the upper surface of the electromagnet, a limit block is fixedly installed on the inner wall of the square slide cylinder near the top, a second spring is provided between the limit block and the electromagnet, the bottom end of the first pull rope passes through the outer surface of the limit block and is slidably installed therewith, and the bottom end of the first pull rope is inserted into the interior of the second spring.

[0010] As a further embodiment of the present invention, a discharge port is provided through the outer surface of one side of the partition, a rotating shaft is rotatably installed on the outer surface of the partition near the discharge port, a scraper is fixedly installed on the outer surface of the rotating shaft, the scraper is positioned at the discharge port, a torsion spring is sleeved on the outer surface of the rotating shaft, and the top end of the first pull rope passes through the inner wall of the storage box and is fixedly connected to the outer surface of the scraper.

[0011] As a further embodiment of the present invention, two third support plates are symmetrically fixedly installed on the outer surfaces of the third rotating shaft near both ends. A second rotating shaft is rotatably installed between the two third support plates. The second rotating shaft passes through the outer surface of the storage box. Multiple feeding wheels are fixedly installed at equal intervals on the outer surface of the second rotating shaft. The feeding wheels are located inside the front cavity of the storage box. Multiple feeding grooves are equidistantly opened on the outer circumference of the feeding wheels. The feeding grooves are located below the discharge port. A drive motor is fixedly installed on the outer surface of one side of one of the third support plates. The output end of the drive motor passes through the outer surface of the third support plate and is fixedly installed at the rotation center of the second rotating shaft.

[0012] As a further embodiment of the present invention, a spiral guide rail is fixedly installed on the outer surface of the winding wheels near the two first support plates. The outer surface of the spiral guide rail is provided with a spiral groove. Both ends of the third rotating shaft are fixedly installed with drive plates through the outer surface of the second support plate. A drive column is fixedly installed on the outer surface of the drive plate near the bottom end. The drive column is slidably installed with the inner wall of the spiral groove. Two mounting plates are symmetrically fixedly installed on the outer surface of one of the first support plates. A worm gear is rotatably installed between the two mounting plates. A worm wheel is fixedly installed through the outer surface of the first support plate near the connecting shaft of the worm gear. The worm wheel meshes with the worm gear. A knob is fixedly installed through the outer surface of the mounting plate at one end of the worm gear.

[0013] As a further embodiment of the present invention, a connecting plate is fixedly installed on the outer surface of the multiple conveying pipes near the bottom end. Multiple second connecting rods are rotatably installed on the outer surface of the connecting plate at equal intervals. A first connecting rod is rotatably installed on the outer surface of the multiple elliptical seed blocks. The bottom end of the second connecting rod is rotatably installed with the top end of the first connecting rod. The connecting plate is matched with the opening. When the conveying pipe is wound up, the connecting plate will slide into the inside of the opening and store the elliptical seed block inside the opening.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When some elliptical seed blocks are dragged onto the surface of rocks on the seabed, or when the mud layer on the seabed surface is shallow, the sinking distance of the elliptical seed blocks is small. At this time, the pressure plate is not lifted by the mud layer, and the seaweed seed pellets located inside the feeding trough on the surface of the feeding wheel will be scraped back into the front cavity of the storage box by the scraper, and will not fall into the rear cavity of the storage box. With this device, when sowing seaweed seed pellets, when encountering a seabed with a shallow mud layer or a rock layer on the seabed surface, seaweed seed sowing will not be carried out, avoiding waste of seaweed seeds and reducing the cost of seaweed bed ecological restoration. The pressure plate will cover the surface of the seaweed seed pellets with soil to prevent them from being eaten by fish and shrimp in the sea.

[0016] 2. The second shaft is driven by the drive motor to rotate, which in turn drives the feeding wheel to rotate. The feeding wheel transports the seaweed seed pellets to the rear cavity of the storage box through the feeding groove on its surface, which facilitates subsequent planting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0018] Figure 2 This is a top view structural diagram of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0019] Figure 3 This is a bottom view structural diagram of a work vessel for ecological restoration of seagrass beds proposed in this invention.

[0020] Figure 4 This is a schematic diagram of the delivery pipe of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0021] Figure 5 This is a cross-sectional schematic diagram of the delivery pipe of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0022] Figure 6 This is a schematic diagram of the storage bin of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0023] Figure 7This is a top view schematic diagram of the storage box of a work vessel for ecological restoration of seagrass beds proposed in this invention;

[0024] Figure 8 for Figure 4 Enlarged view of a portion of point A in the middle;

[0025] Figure 9 for Figure 5 Enlarged view of a portion of point B in the middle;

[0026] Figure 10 for Figure 5 Enlarged view of a portion of point C in the middle;

[0027] Figure 11 for Figure 5 Enlarged view of a portion of point D;

[0028] Figure 12 This is a cross-sectional schematic diagram of the winding wheel of a work vessel for ecological restoration of seagrass beds proposed in this invention.

[0029] In the diagram: 1. Hull; 2. Opening; 3. First rotating shaft; 4. Guide roller; 5. First support plate; 6. Connecting shaft; 7. Rewinding wheel; 701. Conveying pipe; 702. Connecting plate; 703. Elliptical seed block; 704. Pressure plate; 705. First connecting rod; 706. Second connecting rod; 707. Elastic telescopic rod; 708. Rotating rod; 8. Spiral guide rail; 9. Worm gear; 10. Worm wheel; 11. Knob; 12. Drive plate; 13. Drive column; 14. Second support plate; 15. Storage box; 16. Third support plate; 17. Second rotating shaft; 18. Drive motor; 19. Feeding wheel; 20. Feeding pipe; 21. First guide tube; 2101. First pull rope; 22. Second guide tube; 2202. Second pull rope; 23. Square slide cylinder; 24. Electromagnet; 25. Square iron block; 26. Limiting block; 27. First spring; 28. Second spring; 29. ​​Scraper; 30. Torsion spring. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Reference Figures 1-12A work vessel for ecological restoration of seagrass beds includes a hull 1. An opening 2 is formed through the lower surface of the hull 1 at its middle position. A first rotating shaft 3 is rotatably mounted between the inner walls of opposite ends of the opening 2. Multiple guide rollers 4 are fixedly mounted at equal intervals on the outer surface of the first rotating shaft 3. Two first support plates 5 are symmetrically fixedly mounted on the upper surface of the hull 1 near the front end. Two connecting shafts 6 are symmetrically rotatably mounted on the outer surface of opposite sides of the two first support plates 5. Multiple winding wheels 7 are sequentially fixedly mounted between the two connecting shafts 6. The outer circumference of the winding wheels 7 is provided with an annular winding groove. The interior of the winding wheels 7 is provided with a through hole. A conveying pipe 701 is fixedly connected to the inner wall of the through hole near the bottom end. The outer circumference of the guide rollers 4 is provided with grooves that match the shape of the conveying pipe 701. A conveying pipe 701 is disposed inside the groove. An elliptical seeding block 703 is fixedly installed at the bottom end of the conveying pipe 701. Seeding holes are opened inside the elliptical seeding block 703, and the seeding holes are connected to the through holes through the conveying pipe 701. Two second support plates 14 are symmetrically fixedly installed on the upper surface of the hull 1 near the front end. A third rotating shaft is rotatably installed between the two second support plates 14. Multiple storage boxes 15 are fixedly installed at equal intervals on the outer surface of the third rotating shaft. A partition is fixedly installed between the inner walls of opposite sides of the storage box 15, dividing the storage box 15 into a front cavity and a rear cavity by the partition. A discharge pipe 20 is fixedly installed at the bottom end of the storage box 15 in the rear cavity. The discharge pipe 20 is connected to the rear cavity of the storage box 15, and the discharge end of the discharge pipe 20 is connected to the through hole. A second guide tube 22 is fixedly installed on the inner wall of 701. A second pull rope 2202 is slidably installed on the inner wall of the second guide tube 22. A circular groove is opened inside the elliptical seeding block 703. A rotating rod 708 is rotatably installed between the inner walls of opposite ends of the circular groove. The circular groove is connected to the seeding hole. The bottom end of the second pull rope 2202 is fixedly connected to the outer circumference of the rotating rod 708. A square countersunk hole is opened on the outer surface of the annular winding groove of the winding wheel 7. A square iron block 25 is slidably installed on the inner wall of the square countersunk hole. The top end of the second pull rope 2202 passes through the inner wall of the square countersunk hole and is fixedly connected to the lower surface of the square iron block 25. A first spring 27 is set inside the square countersunk hole and between the square countersunk hole and the square iron block 25. The second pull rope 2202... The top end of the 2 is inserted into the interior of the first spring 27. Both ends of the rotating rod 708 are fixedly mounted with pressure plates 704 through the outer surface of the elliptical seed block 703. An elastic telescopic rod 707 is rotatably mounted on the upper surface of the pressure plate 704. The other end of the elastic telescopic rod 707 is rotatably mounted to the outer surface of the elliptical seed block 703. A leakage hole is provided inside the elliptical seed block 703, and the leakage hole is connected to the circular groove. Water inside the circular groove can be drained through the leakage hole when recovering the elliptical seed block 703. A discharge port is opened through the outer surface of one side of the partition. A rotating shaft is rotatably mounted on the outer surface of the partition near the discharge port. A scraper 29 is fixedly mounted on the outer surface of the rotating shaft, and the scraper 29 is positioned at the discharge port. A torsion spring 30 is sleeved on the outer surface of the rotating shaft.The top end of the first pull rope 2101 passes through the inner wall of the storage box 15 and is fixedly connected to the outer surface of the scraper 29.

[0034] When some of the elliptical seed blocks 703 are dragged onto the surface of the rocks on the seabed, or when the mud layer on the seabed is shallow, the sinking distance of the elliptical seed blocks 703 is small. At this time, the pressure plate 704 is not lifted by the mud layer and remains in its initial position. The rotating rod 708 does not rotate, and the first pull rope 2101 and the second pull rope 2202 do not pull the scraper 29 to open the discharge port. The seaweed seed pellets located inside the feeding groove on the surface of the feeding wheel 19 will be scraped back into the front cavity of the storage box 15 by the scraper 29, and will not fall into the rear cavity of the storage box 15. This device can be used to seed seaweed seed pellets when encountering a shallow mud layer on the seabed. When there is a rock layer on the seabed surface, seaweed seeds will not be sown, thus avoiding waste of seaweed seeds and reducing the cost of seaweed bed ecological restoration. When the elliptical sowing block 703 sinks to a sufficient distance, the pressure plate 704 is lifted by the mud layer, which will drive the rotating rod 708 to rotate. The rotating rod 708, by winding the second pull rope 2202, causes the first pull rope 2101 to pull up the scraper 29. At this time, the discharge port on the partition is fully opened, and the seaweed seed mud pellets will fall into the inside of the feeding pipe 20. Through the conveying pipe 701 and the sowing hole, they will fall into the mud pit of the seabed. The pressure plate 704 will cover the surface of the seaweed seed mud pellets with mud again to prevent them from being eaten by fish and shrimp in the sea.

[0035] In this embodiment, a square slide cylinder 23 is fixedly installed on the outer surface of the feeding pipe 20 near the discharge end. A first guide tube 21 is fixedly installed between the storage box 15 and the square slide cylinder 23. A first pull rope 2101 is slidably installed on the inner wall of the first guide tube 21. An electromagnet 24 is slidably installed on the inner wall of the square slide cylinder 23. The bottom end of the first pull rope 2101 passes through the inner wall of the square slide cylinder 23 and is fixedly installed on the upper surface of the electromagnet 24. A limit block 26 is fixedly installed on the inner wall of the square slide cylinder 23 near the top. A second spring 28 is provided between the limit block 26 and the electromagnet 24. The bottom end of the first pull rope 2101 passes through the outer surface of the limit block 26 and is slidably installed therewith. The bottom end of the first pull rope 2101 is inserted into the interior of the second spring 28.

[0036] The rotation of the take-up wheel 7 drives the spiral guide rail 8 to rotate. The spiral guide rail 8 drives the drive plate 12 to rotate downward through the spiral groove and the drive column 13, causing the drive plate 12 to drive the third rotating shaft to rotate. The third rotating shaft drives the feed tube 20 to move closer to the take-up wheel 7 through the storage box 15. When the spiral guide rail 8 rotates to the bottom, the discharge end of the feed tube 20 abuts against the outer surface of the annular take-up groove. At this time, the feed tube 20 is connected to the through hole. The feed tube 20 drives the bottom end of the square slide cylinder 23 to abut against the top of the square countersunk hole on the surface of the annular take-up groove. At this time, the power of the electromagnet 24 is turned on, so that the electromagnet 24 attracts the square iron block 25. The first pull rope 2101 and the second pull rope 2202 are connected through this device.

[0037] In this embodiment, two third support plates 16 are symmetrically fixedly installed on the outer surfaces of the third rotating shaft near both ends. A second rotating shaft 17 is rotatably installed between the two third support plates 16. The second rotating shaft 17 penetrates the outer surface of the storage box 15. Multiple feeding wheels 19 are fixedly installed at equal intervals on the outer surface of the second rotating shaft 17. The feeding wheels 19 are located inside the front cavity of the storage box 15. Multiple feeding grooves are equidistantly opened on the outer circumference of the feeding wheels 19. The feeding grooves are located below the discharge port. A drive motor 18 is fixedly installed on the outer surface of one side of one of the third support plates 16. The output end of the drive motor 18 penetrates the outer surface of the third support plate 16 and is fixedly installed at the rotation center of the second rotating shaft 17.

[0038] The second rotating shaft 17 is driven by the drive motor 18, which in turn drives the feeding wheel 19 to rotate. The feeding wheel 19 transports the seaweed seed pellets to the rear cavity of the storage box 15 through the feeding groove on its surface, which facilitates subsequent planting.

[0039] In this embodiment, spiral guide rails 8 are fixedly installed on the outer surfaces of the winding wheels 7 near the two first support plates 5. Spiral guide rails 8 have spiral grooves on their outer surfaces. Drive plates 12 are fixedly installed on both ends of the third rotating shaft through the outer surfaces of the second support plate 14. Drive columns 13 are fixedly installed on the outer surface of the drive plate 12 near the bottom end. Drive columns 13 are slidably installed with the inner wall of the spiral groove. Two mounting plates are symmetrically fixedly installed on the outer surface of one side of the first support plate 5. A worm gear 9 is rotatably installed between the two mounting plates. A worm wheel 10 is fixedly installed through the outer surface of the first support plate 5 near one end of the connecting shaft 6 of the worm gear 9. The worm wheel 10 meshes with the worm gear 9. A knob 11 is fixedly installed through the outer surface of the mounting plate at one end of the worm gear 9.

[0040] By manually turning knob 11, knob 11 drives worm 9 to rotate, worm 9 drives worm wheel 10 to rotate, and the rotation of worm wheel 10 drives connecting shaft 6 to rotate. Connecting shaft 6 drives multiple take-up wheels 7 to rotate, and the rotation of take-up wheels 7 releases the delivery pipe 701 from the annular take-up groove, so that the delivery pipe 701 drives the elliptical seed block 703 to fall onto the surface of the seabed along the guide roller 4. At the same time, the rotation of take-up wheels 7 drives spiral guide rail 8 to rotate, and spiral guide rail 8 drives drive plate 12 to rotate downward through spiral groove and drive column 13.

[0041] In this embodiment, the width of the annular winding groove is matched with the diameter of the conveying pipe 701, and the pitch of the spiral groove is matched with the diameter of the conveying pipe 701.

[0042] In this embodiment, a connecting plate 702 is fixedly installed on the outer surface of multiple conveying pipes 701 near the bottom. Multiple second connecting rods 706 are rotatably installed at equal intervals on the outer surface of the connecting plate 702. A first connecting rod 705 is rotatably installed on the outer surface of multiple elliptical seeding blocks 703. The bottom end of the second connecting rod 706 is rotatably installed with the top end of the first connecting rod 705. The connecting plate 702 is matched with the opening 2. When the conveying pipe 701 is wound up, the connecting plate 702 will slide into the interior of the opening 2, and the elliptical seeding blocks 703 will be stored inside the opening 2. Through the second connecting rods 706 and the first connecting rods 705, the position of the elliptical seeding blocks 703 is restricted from rotating and always remains in a vertical state, which is convenient for the sowing of seaweed seed pellets.

[0043] It should be noted that when using this invention, the operator should maneuver the hull 1 to the designated seabed position. It is important to ensure that the hull 1 moves at the required speed to avoid dragging the elliptical seed block 703 too quickly. Then, the seaweed seed pellets are poured into the front cavity of the storage box 15. The amount of seaweed seed pellets added should not exceed the top of the feeding trough of the feeding wheel 19 to facilitate receiving the material. By manually rotating the knob 11, the knob 11 drives the worm gear 9 to rotate, which in turn drives the worm wheel 10. The rotation of the worm wheel 10 drives the connecting shaft 6 to rotate, which in turn drives multiple winding wheels 7 to rotate. The rotation of the winding wheels 7 releases the conveying pipe 701 from the annular winding trough. Released, the conveying pipe 701 drives the elliptical seeding block 703 along the guide roller 4 to fall onto the seabed surface. Due to its own weight, the elliptical seeding block 703 sinks to a depth of 2-3 cm into the seabed mud after falling onto the seabed surface. At this time, the discharge end of the seeding hole inside the elliptical seeding block 703 is located on the upper surface of the seabed. The elliptical seeding block 703 is dragged along the seabed surface by the hull 1, so that the elliptical seeding block 703 scratches a pit with a depth of 2-3 cm on the seabed surface, and sows the seaweed seed pellets into the pit. At the same time, the rotation of the winding wheel 7 drives the spiral guide rail 8 to rotate. The spiral guide rail 8 drives the drive plate 12 to rotate downward through the spiral groove and the drive column 13. The drive plate 12 rotates the third shaft, which in turn drives the feed pipe 20 to move closer to the take-up reel 7 via the storage box 15. When the spiral guide rail 8 rotates to the bottom, the discharge end of the feed pipe 20 abuts against the outer surface of the annular take-up groove. At this time, the feed pipe 20 is connected to the through hole, and the bottom end of the square slide cylinder 23 abuts against the top of the square countersunk hole on the surface of the annular take-up groove via the feed pipe 20. At this time, the power of the electromagnet 24 is turned on, so that the electromagnet 24 attracts the square iron block 25. The first pull rope 2101 and the second pull rope 2202 are connected through this device. When part of the elliptical seed block 703 is dragged to the surface of the rocks on the seabed, or the surface of the seabed... When the mud layer is shallow, the sinking distance of the elliptical seeding block 703 is small. At this time, the pressure plate 704 is not lifted by the mud layer and is still in the initial position. At this time, the rotating rod 708 does not rotate, and the first pull rope 2101 and the second pull rope 2202 will not pull the scraper 29 to open the discharge port. The seaweed seed mud pellets located inside the feeding groove on the surface of the feeding wheel 19 will be scraped back into the front cavity of the storage box 15 by the scraper 29 and will not fall into the rear cavity of the storage box 15. With this device, when sowing seaweed seed mud pellets, when encountering a seabed with a shallow mud layer or a rock layer on the seabed surface, seaweed seed sowing will not be carried out, avoiding waste of seaweed seeds and reducing the cost of seaweed bed ecological restoration.When the elliptical seeding block 703 has sunk sufficiently, the pressure plate 704 is lifted by the mud layer, which drives the rotating rod 708 to rotate. The rotating rod 708, by winding the second pull rope 2202, causes the first pull rope 2101 to pull up the scraper 29. At this time, the discharge port on the partition is fully opened, and the seaweed seed pellets fall into the inside of the feeding pipe 20. Through the conveying pipe 701 and the seeding hole, they fall into the mud pit on the seabed. The pressure plate 704 covers the surface of the seaweed seed pellets with mud to prevent them from being eaten by fish and shrimp. The drive motor 18 drives the second rotating shaft 17 to rotate, which in turn drives the feeding wheel 19 to rotate. The feeding wheel 19 transports the seaweed seed pellets to the rear cavity of the storage box 15 through the feeding groove on its surface, facilitating subsequent planting.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A vessel for ecological restoration of seagrass beds, comprising a hull (1), characterized in that, An opening (2) is provided through the lower surface of the middle position of the hull (1). A first rotating shaft (3) is rotatably installed between the inner walls of opposite ends of the opening (2). Multiple guide rollers (4) are fixedly installed at equal intervals on the outer surface of the first rotating shaft (3). Two first support plates (5) are symmetrically fixedly installed on the upper surface of the hull (1) near the front end. Two connecting shafts (6) are symmetrically rotatably installed on the outer surface of opposite sides of the two first support plates (5). Multiple winding wheels (7) are fixedly installed between the two connecting shafts (6). An annular winding groove is provided on the outer circumference of the winding wheel (7). A through hole is provided inside the winding wheel (7). A conveying pipe (701) is fixedly connected to the inner wall of the through hole near the bottom end. The guide roller (4) has a groove on its outer circumference that matches the shape of the conveying pipe (701). The conveying pipe (701) is located inside the groove. An elliptical seeding block (703) is fixedly installed at the bottom of the conveying pipe (701). The elliptical seeding block (703) has a seeding hole inside. The seeding hole is connected to the through hole through the conveying pipe (701). Two second support plates (14) are symmetrically fixedly installed on the upper surface of the hull (1) near the front end. A third rotating shaft is rotatably installed between the two second support plates (14). Multiple storage boxes (15) are fixedly installed at equal intervals on the outer surface of the third rotating shaft. A partition is fixedly installed between the inner walls of the opposite sides of the storage boxes (15). The material box (15) is divided into a front chamber and a rear chamber by a partition. The material storage box (15) is fixedly installed with a feeding pipe (20) at the bottom of the rear chamber. The feeding pipe (20) is connected to the rear chamber of the material storage box (15). The discharge end of the feeding pipe (20) is connected to the through hole. A second guide pipe (22) is fixedly installed on the inner wall of the conveying pipe (701). A second pull rope (2202) is slidably installed on the inner wall of the second guide pipe (22). A circular groove is opened inside the elliptical seeding block (703). A rotating rod (708) is rotatably installed between the inner walls of the opposite ends of the circular groove. The circular groove is connected to the seeding hole. The bottom end of the second pull rope (2202) is fixedly connected to the outer circumference of the rotating rod (708). The winding wheel (7) has a square countersunk hole on the outer surface of the annular winding groove. A square iron block (25) is slidably installed on the inner wall of the square countersunk hole. The top end of the second pull rope (2202) passes through the inner wall of the square countersunk hole and is fixedly connected to the lower surface of the square iron block (25). A first spring (27) is provided inside the square countersunk hole. The first spring (27) is located between the square countersunk hole and the square iron block (25). The top end of the second pull rope (2202) is inserted into the inside of the first spring (27). The two ends of the rotating rod (708) pass through the outer surface of the elliptical seeding block (703) and are fixedly installed with pressure plates (704). An elastic telescopic rod (707) is rotatably installed on the upper surface of the pressure plate (704).The other end of the elastic telescopic rod (707) is rotatably mounted to the outer surface of the elliptical seeding block (703). The elliptical seeding block (703) has a drainage hole inside, which is connected to a circular groove. A square slide cylinder (23) is fixedly mounted on the outer surface of the feeding pipe (20) near the discharge end. A first guide tube (21) is fixedly mounted between the storage box (15) and the square slide cylinder (23). A first pull rope (2101) is slidably mounted on the inner wall of the first guide tube (21). An electromagnet (24) is slidably mounted on the inner wall of the square slide cylinder (23). The bottom end of the first pull rope (2101) penetrates the inner wall of the square slide cylinder (23) and is fixedly mounted to the upper surface of the electromagnet (24).

2. The work vessel for ecological restoration of seagrass beds according to claim 1, characterized in that, A limiting block (26) is fixedly installed on the inner wall near the top of the square slide cylinder (23). A second spring (28) is provided between the limiting block (26) and the electromagnet (24). The bottom end of the first pull rope (2101) passes through the outer surface of the limiting block (26) and slides therewith. The bottom end of the first pull rope (2101) is inserted into the interior of the second spring (28).

3. The work vessel for ecological restoration of seagrass beds according to claim 2, characterized in that, The outer surface of one side of the partition is provided with a discharge port. A rotating shaft is rotatably installed on the outer surface of the partition near the discharge port. A scraper (29) is fixedly installed on the outer surface of the rotating shaft. The scraper (29) is located at the discharge port. A torsion spring (30) is sleeved on the outer surface of the rotating shaft. The top end of the first pull rope (2101) passes through the inner wall of the storage box (15) and is fixedly connected to the outer surface of the scraper (29).

4. The work vessel for ecological restoration of seagrass beds according to claim 3, characterized in that, Two third support plates (16) are symmetrically fixedly installed on the outer surface of the third shaft near both ends. A second shaft (17) is rotatably installed between the two third support plates (16). The second shaft (17) passes through the outer surface of the storage box (15). Multiple feeding wheels (19) are fixedly installed at equal intervals on the outer surface of the second shaft (17). The feeding wheels (19) are located inside the front cavity of the storage box (15). Multiple feeding grooves are equidistantly opened on the outer circumference of the feeding wheels (19). The feeding grooves are located below the discharge port. A drive motor (18) is fixedly installed on the outer surface of one of the third support plates (16). The output end of the drive motor (18) passes through the outer surface of the third support plate (16) and is fixedly installed at the rotation center of the second shaft (17).

5. The work vessel for ecological restoration of seagrass beds according to claim 1, characterized in that, Spiral guide rails (8) are fixedly installed on the outer surfaces of the winding wheels (7) near the two first support plates (5). Spiral grooves are opened on the outer surfaces of the spiral guide rails (8). Drive plates (12) are fixedly installed on both ends of the third rotating shaft through the outer surfaces of the second support plate (14). Drive columns (13) are fixedly installed on the outer surface of the drive plate (12) near the bottom end. Drive columns (13) are slidably installed with the inner wall of the spiral groove. Two mounting plates are symmetrically fixedly installed on the outer surface of one of the first support plates (5). A worm gear (9) is rotatably installed between the two mounting plates. A worm wheel (10) is fixedly installed through the outer surface of the connecting shaft (6) near the worm gear (9). The worm wheel (10) meshes with the worm gear (9). A knob (11) is fixedly installed through the outer surface of the mounting plate at one end of the worm gear (9).

6. The work vessel for ecological restoration of seagrass beds according to claim 1, characterized in that, A connecting plate (702) is fixedly installed on the outer surface of the multiple conveying pipes (701) near the bottom end. Multiple second connecting rods (706) are rotatably installed on the outer surface of the connecting plate (702) at equal intervals. A first connecting rod (705) is rotatably installed on the outer surface of the multiple elliptical seeding blocks (703). The bottom end of the second connecting rod (706) is rotatably installed with the top end of the first connecting rod (705). The connecting plate (702) is matched with the opening (2).

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