A method of water surface waste cleanup

Abstract

The application provides a water surface garbage cleaning ship automatic dock method, steps include (1) after the net box on the ship body is full of waste, the ship body enters the dock along the guide groove plate; (2) the lifting device is started, the ship body is lifted together to the front of the recycling device and is lifted to be higher than the water surface, and the guide rail without the net box in the recycling device is connected with the net box on the ship body; (3) the push-pull device is started, the push-pull device pulls the net box on the ship body to slide into the net box storage ring along the guide rail; (4) after the net box slides into the corresponding position of the net box storage ring, the push-pull device is lifted, the first driving motor is started to drive the transmission wheel to rotate, the inner ring is slid along the inner side of the outer ring, the net box in the other sliding groove is rotated to the corresponding position of the ship body; (5) the push-pull device is lowered, the push-pull device is connected with the net box, then the push-pull device pushes the net box to slide out of the net box storage ring along the guide rail, the net box is combined with the ship body, and the net box replacement is completed; (6) the lifting device drives the ship body and the net box to descend to the water surface, and the ship body leaves the dock along the guide groove plate; through the cooperation of the lifting device and the recycling device, when the garbage net box is recycled, the ship body is stable and leaves the water surface, the method is reliable, the garbage net box can be quickly replaced, and the operation is simple and efficient.

Description

Technical Field

[0001] This invention relates to the field of marine cage recycling technology, specifically to a method for cleaning up waste on the water surface. Background Technology

[0002] With the rapid development of my country's economy and the country's higher requirements for the protection of the aquatic environment, it is necessary to clean up the garbage on the water surface in order to maintain the aesthetics of the river environment and the cleanliness of the water. Otherwise, it will not only cause blockage of the river, but also have a devastating impact on the original ecosystem of the river. However, when cleaning up garbage in rivers and lakes, the manual retrieval method is not only costly and inefficient, but also poses a risk of falling into the water. To solve this problem, Chinese patent application No. 202122174404.0, published on February 11, 2022, discloses an unmanned boat garbage cleaning and recycling system, including: a garbage collection unit and a garbage recycling unit; wherein the garbage collection unit specifically includes: a boat. The system comprises a ship hull, a waste collection frame, a waste collection net, and an outer collection net. The waste collection frame is installed on the hull, and the waste collection net is movably installed inside the waste collection frame for temporary waste storage. The outer collection net extends outside the hull to guide waste into the waste collection net. The waste recycling unit includes a recycling base station, a lifting platform, and a horizontal telescopic hook lock. The lifting platform and the horizontal telescopic hook lock are both installed on the recycling base station. The horizontal telescopic hook lock is used to pull the waste collection net onto the lifting platform for further processing. By setting up the waste recycling unit, the system can automatically recycle and transport river waste collected by the waste collection unit, completing the final step of waste recycling and processing, saving manpower and resources, and accelerating the efficiency of cleanup. However, when the system collects garbage from the garbage collection net, after the hull collects the garbage on the water surface, it uses a horizontal telescopic hook to pull the garbage collection net into the recycling base station and then pulls the garbage collection net onto the lifting platform. Thus, the hull is still on the water surface when the garbage collection net is being pulled. The wind and waves and the different water levels directly affect the stability of the hull. At the same time, the hull can only leave the recycling base station and continue working after all the garbage in the garbage collection net has been collected. The operation is slow, resulting in low work efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a method for cleaning up waste on the water surface, which ensures that the hull is stably removed from the water surface when recycling garbage cages. The method is reliable, and the garbage cages can be quickly replaced. It is simple and efficient to operate.

[0004] To achieve the above objectives, a method for cleaning up surface waste involves recycling and replacing fish cages within a vessel using a dock. The dock includes a lifting device and a recycling device. The lifting device includes a fixed support frame, a guide trough, a support bracket for the vessel hull, and a limiting spring for positioning. The recycling device includes a fish cage storage ring and a push-pull device. The fish cage storage ring includes an outer ring and an inner ring, with the inner ring positioned within a cavity. One end of the push-pull device is fixedly connected to the outer ring, and the other end is positioned within the inner ring and moves along its axial and vertical directions. The outer ring fits over the inner ring, and the inner and outer rings are in a rolling connection. Two or more sets of sliding joints are provided on the inner wall of the inner ring. Each set of slots includes two opposing guide rails. One end of the inner ring is provided with a driven gear, and the outer side of the outer ring is provided with a first drive motor. The first drive motor is rotatably connected to the drive gear. The drive gear passes through a second through hole on the outer ring and meshes with the driven gear to rotate. One end of the fixed bracket is fixedly connected to the outer side of the outer ring. One side of the fixed bracket is provided with a first slot and a second slot that match the guide slot plate. The first slot is provided with a gear and a transmission chain. The transmission chain is engaged with one end of the guide slot plate. The boat support is located inside the guide slot plate. The limiting spring is located inside the guide slot plate and close to one end of the net cage storage ring. Includes the following steps: (1) After the net cages on the hull are full of waste, the hull enters the dock along the guide trough plate; (2) Start the lifting device, lift the boat together to the front of the recovery device and raise the boat above the water surface, and connect the guide rail of the recovery device without net cage to the net cage on the boat. (3) Activate the push-pull device, which pulls the net cage on the hull along the guide rail into the net cage storage ring; (4) After the net cage slides into the corresponding position of the net cage storage ring, the push-pull device rises and the first drive motor is started, so that the active gear drives the driven gear to rotate, so that the inner ring slides along the inner side of the outer ring and rotates the net cages in other slots to the position corresponding to the hull. (5) The push-pull device descends, so that the push-pull device engages with the net cage. Then the push-pull device pushes the net cage to slide out of the net cage storage ring along the guide rail, so that the net cage is combined with the hull and the net cage replacement is completed. (6) The lifting device lowers the hull and net cage to the water surface, and the hull leaves the cabin along the guide trough.

[0005] The above method involves first raising the hull above the water surface using a lifting device and aligning it with a guide rail without net cages. Then, a push-pull device pulls the net cages back into the guide rails for retrieval. Next, the push-pull device is raised and its inner ring rotated to align other net cages with the hull, and then the corresponding net cages are pushed onto the hull. The retrieval and replacement of net cages are achieved through a pull-push method. This operation is convenient and reliable, and the lifting device allows the hull to be raised above the water surface for replacement, preventing the floating of the water surface from affecting the floating of the net cages, thus improving reliability.

[0006] Furthermore, the drive gear is rotatably connected to the output end of the first drive motor. A second through hole is provided on the outer ring, allowing the drive gear to pass through the second through hole and mesh with the driven gear at one end of the inner ring. Thus, after the first drive motor starts, it drives the drive gear to rotate, which in turn drives the inner ring to rotate within the cavity of the net cage storage ring. Simultaneously, a guide rail is provided on the inner ring, allowing the net cages in the hull to be retrieved onto the guide rail on the inner ring. Then, by rotating the inner ring, other net cages are rotated to their corresponding positions on the hull, completing the net cage replacement. The operation is simple, quick, and efficient, eliminating the need to wait for all the garbage in the net cages to be collected before continuing work; different net cages can be directly replaced, effectively improving the hull's operational efficiency. The net cage storage ring is fixedly connected to the fixed legs, and... A first and second chute, matching the guide chute plate, are provided on one side of the fixed bracket. A gear and transmission chain are installed in the first chute, engaging with the guide chute plate. The gear drives the transmission chain, allowing the guide chute plate to move along the length of the chute. A limiting spring and a boat support are placed inside the guide chute plate, with the limiting spring positioned near the end closest to the net cage storage ring. This ensures that after the boat enters the guide chute, the boat support holds the bottom of the boat, the limiting spring shields the front, and the guide chute plates on both sides shield the sides. Driven by the gear and transmission chain, the boat can stably leave the water, avoiding the effects of waves and varying water levels, thus ensuring the stability of the boat during net cage retrieval.

[0007] Furthermore, the gear includes a first gear and a second gear, the second gear being rotatably connected to the output shaft of a second drive motor, the second drive motor being mounted on the side of the fixed bracket near the lifting device, and the fixed bracket being provided in two or more forms; Step (2) specifically includes the second drive motor driving the second gear to rotate, thereby driving the transmission chain and guide trough plate to slide upward along the length of the trough, thereby lifting the hull and the net cage; Step (6) includes the second drive motor driving the second gear to rotate, thereby driving the transmission chain and guide trough plate to slide downward along the length of the trough, so as to realize the descent of the hull and the net cage.

[0008] The above setup enables the drive motor to rotate the gears and transmission chain.

[0009] Furthermore, the guide groove plates are symmetrically arranged, and each guide groove plate includes an extension, a connecting portion, and a sliding portion. One end of the extension is fixedly connected to one end of the connecting portion, and the other end of the extension extends outward from the guide groove plate. The other end of the connecting portion is fixedly connected to one end of the sliding portion, and the other end of the sliding portion extends into the second sliding groove and forms a sliding connection with the second sliding groove.

[0010] The above configuration, by extending the guide trough plate outward to form an outward V-shape, facilitates the alignment of the hull before it enters the guide trough. By setting the other end of the sliding part in the second sliding groove to form a sliding connection, the horizontal direction of the guide trough plate can be limited, so that the guide trough plate can only slide in the vertical direction.

[0011] Furthermore, the other end of the sliding part is connected to one end of the connecting block, and the other end of the connecting block is provided with a protrusion that matches the transmission chain, and the protrusion engages with the transmission chain.

[0012] The above configuration involves connecting the connecting block to the sliding part of the guide plate, with a protrusion on the connecting block that engages with the transmission chain. This allows the drive motor to drive the gears, which in turn rotates the transmission chain. As a result, the connecting block and the transmission chain rotate simultaneously, enabling the transmission chain to drive the guide plate and the hull to slide along the vertical direction of the fixed support. This ensures that the guide plate protects the hull and the support structure, allowing the hull to stably leave the water and preventing the hull from shifting or deviating due to the influence of waves.

[0013] Furthermore, one end of the boat support is fixedly connected to the inner side of the connecting part, and the other end of the boat support extends downward in the guide groove.

[0014] The above configuration, by fixing one end of the boat support to the inner side of the connecting part of the guide trough plate and extending the other end of the boat support into the guide trough, ensures that the boat support can support the bottom of the boat after the boat enters the guide trough, thus providing support for the boat when it leaves the water surface with the guide trough plate.

[0015] Furthermore, one end of the guide rail is fixedly connected to the inner side of the inner ring, and the other end of the guide rail extends in the opposite direction. A stepped portion is provided on one side of the guide rail, and the stepped portions of the two opposite guide rails form a groove that matches the protrusions on both sides of the bottom of the cage between the stepped portions and the inner side wall of the inner ring. Step (4) specifically includes that after the net cage slides into the corresponding position of the net cage storage ring, the push-pull device slides a distance in the opposite direction of the net cage sliding into the net cage storage ring, so that the push-pull device is separated from the net cage.

[0016] The above design facilitates the replacement of net cages by guiding them to slide along the grooves into the net cage storage ring.

[0017] Furthermore, the push-pull device includes a connecting plate, a lifting screw, a lifting screw motor, a belt drive structure, and a buckle. The connecting plate is located at one end of the outer ring near the driven gear. Both ends of the connecting plate are fixedly connected to the outer ring. A lifting screw motor and a lifting screw are located on the side of the connecting plate near the outer ring. The lifting screw motor is connected to the lifting screw. One end of the lifting screw is connected to a connecting rod. A belt drive structure is located on the other end of the connecting rod. The buckle is located on the belt drive structure and moves with the belt. Step (3) includes the lifting screw motor driving the lifting screw to rotate, thereby moving the connecting rod to the position corresponding to the net cage on the hull, and engaging the buckle with the net cage on the hull. The belt drive structure moves and drives the buckle to slide along the guide rail into the net cage storage ring. Step (4) includes sliding the net cage into the corresponding position of the net cage storage ring, driving the lifting screw motor to lift the lifting screw, starting the first drive motor so that the active gear drives the driven gear to rotate, so that the inner ring slides along the inner side of the outer ring, and rotates the net cages in other slots to the position corresponding to the hull. Step (5) includes the lifting screw motor driving the lifting screw to descend, so that the buckle engages with the net cage located corresponding to the hull, and then the belt drive structure moves and drives the buckle to push the net cage into the hull.

[0018] The above settings allow the lifting screw to move vertically to adjust the height after it is connected to the connecting rod.

[0019] Furthermore, the belt drive structure is mounted on the connecting rod, and the belt drive structure includes a first pulley, a second pulley, and a belt mounted on one side of the connecting rod. The second pulley is rotatably connected to the output end of the third drive motor, and the first pulley and the second pulley are driven by the belt.

[0020] The above setup uses a third drive motor to drive a pulley, which in turn drives a belt drive.

[0021] Furthermore, a fixing block is provided at the bottom of the belt, one end of the fixing block is fixedly connected to the belt, and the buckle is provided at the other end of the fixing block; Step (3) specifically includes that after the net cage on the hull is connected to the guide rail of the recycling device, the third drive motor drives the pulley and belt, thereby driving the buckle fixed on the belt to move horizontally towards the net cage, so that the buckle engages with the net cage. Step (5) specifically includes sliding the net cage out of the net cage storage ring along the guide rail, and then the belt drives the buckle to continue moving a distance so that the buckle disengages from the net cage.

[0022] The above setup includes a buckle for securing the net cage. A belt drive moves the buckle and the net cage horizontally, allowing the net cage to slide along the guide rail into the net cage storage ring.

[0023] Furthermore, a sensor is provided on the outside of the connecting part; step (2) includes starting the lifting device, lifting the hull together to the front of the recovery device, and determining that the hull is raised above the water surface when the sensor detects that the corresponding water level has been reached, and connecting the guide rail in the recovery device that does not have a net box to the net box on the hull.

[0024] The above setup allows the sensors to determine the water level, thus facilitating the assessment of the ship's contact with the water surface. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the ship after it enters the guide groove of this invention.

[0026] Figure 2 for Figure 1 Another perspective on the overall structure diagram.

[0027] Figure 3 This is an exploded view of the overall structure of the present invention.

[0028] Figure 4 This is an exploded view of the overall structure of the present invention from another perspective.

[0029] Figure 5 This is a schematic diagram of the connection between the buckle and the belt in this invention.

[0030] Figure 6 This is a cross-sectional schematic diagram of the first and second slides of the present invention.

[0031] Figure 7 This is a schematic diagram of the inner ring structure of the present invention.

[0032] Figure 8 This is a schematic diagram showing the hull descending as described in the present invention.

[0033] Figure 9 This is a schematic diagram of the cage after it has been removed according to the present invention.

[0034] Figure 10 This is a schematic diagram of the push-pull device structure of the present invention.

[0035] Figure 11 This is a flowchart of the process of the present invention. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 10 As shown, an automatic dock for a surface garbage cleaning vessel is used to recycle and replace the net cages 1 on the hull 2. It includes a lifting device and a recycling device. The lifting device includes a fixed bracket 3, a guide trough plate 4, a boat support 5 for supporting the hull, and a limiting spring 6 for limiting. In this embodiment, the limiting spring 6 includes two elastic pieces arranged between the guide trough plates 4 and laterally arranged in the groove formed by the guide trough plates 4. The recycling device includes a net cage storage ring and a push-pull device.

[0038] like Figure 1 and Figure 2 As shown, the cage storage ring includes an outer ring 7 and an inner ring 8, which can be viewed together. Figure 3 As shown, the inner ring 8 is set in the cavity of the net cage storage ring. The inner ring 8 has eight first through holes 223 and two or more sets of sliding grooves for placing the net cage 1. Each sliding groove includes two oppositely arranged guide rails 222, and the first through hole 223 is set between the two symmetrical guide rails 222. One end of the guide rail 222 is fixedly connected to the inner side of the inner ring 8, and the other end of the guide rail 222 extends in the opposite direction. One side of the guide rail 222 is provided with a step portion 2221. The step portions of each pair of opposite guide rails 222 are oppositely arranged. The step portions of the two oppositely arranged guide rails 222 form a sliding groove with the bottom of the net cage 1, which facilitates guiding the net cage 1 to slide along the groove into the net cage storage ring. A connecting shaft 224 is provided in the first through hole 223. The roller 225 passes through the connecting shaft 224 in the first through hole 223 and can roll along the inner side of the outer ring 7. One end of the inner ring 8 is provided with a driven gear 221, which is fixedly connected to one end of the inner ring 8.

[0039] See Figure 4 As shown, a second through hole 211 is provided at one end of the outer ring 7 opposite to the driven gear 221. A first drive motor 212 is provided on the outside of the outer ring 7. The first drive motor 212 is rotatably connected to the drive gear 213. The drive gear 213 passes through the second through hole 211 on the outer ring 7 and meshes with the driven gear 221 to rotate. After the first drive motor 212 is started, it drives the drive gear 213 to rotate, which in turn drives the inner ring 8 to rotate in the cavity of the net cage storage ring. The rotation of the inner ring 8 rotates the net cage 1 to the position corresponding to the hull 2.

[0040] like Figure 10 and Figure 5The push-pull device includes a connecting plate 9, a lifting screw 10, a lifting screw motor (not shown in the figure), a belt drive structure, and a buckle 18. One end of the fixed bracket 3 is fixedly connected to the outer side of the outer ring 7. The connecting plate 9 is located at the end of the outer ring 7 near the driven gear 221. Both ends of the connecting plate 9 are fixedly connected to the outer ring 7. The lifting screw 10 and the lifting screw motor are provided on the side of the connecting plate 9 near the outer ring 7. In this embodiment, a mounting groove for accommodating the lifting screw is provided on the side of the connecting plate 9 near the outer ring 7. The lifting screw 10 is connected to one end of the connecting rod 91 at the top of the mounting slot, allowing the connecting rod 91 to move vertically to adjust its height. A belt drive structure is mounted on the connecting rod 91, including a first pulley 13, a second pulley 14, and a belt 15 on one side of the connecting rod 91. The second pulley 14 is rotatably connected to the output end of the third drive motor 16, and the first pulley 13 and the second pulley 14 are driven by the belt 15. In this embodiment, the other end of the connecting rod 91... A receiving groove is provided to accommodate the belt drive structure. The third drive motor and the first pulley are fixed in the receiving groove. After the third drive motor 16 is started, it can drive the second pulley 14 to rotate, thereby driving the belt 15 to drive. A fixing block 17 is provided at the bottom of the belt 15. One end of the fixing block 17 is fixedly connected to the belt 15, and the other end of the fixing block 17 is provided with a buckle 18 for engaging the wire mesh box 1. The buckle 18 includes a push plate 182 and a hook plate 181. One end of the push plate 182 and the hook plate 181 are fixed to the fixing block 17. At the other end, the push plate 182 is positioned close to the second pulley 14, with the other end of the push plate 182 positioned downwards and away from the second pulley 14. The other end of the hook plate 181 is positioned downwards and inwards. The belt 15 drives the buckle 18 and the net box 1 to move horizontally, so that the net box 1 slides along the guide rail 222 into the net box storage ring. During retrieval, the hook plate 181 hooks the net box inside the hull. During replacement, the push plate 182 pushes the net box in the inner ring, thus completing the retrieval and replacement of the net box 1.

[0041] The third drive motor drives the buckle 18 to push the net box 1 along the guide rail 222 out of the net box storage ring, thereby completing the replacement of the net box 1. There is no need to wait for all the garbage in the garbage net box to be recycled before continuing the operation. Instead, different net boxes can be replaced directly. The operation is simple, quick and efficient, which effectively improves the operation efficiency of the ship.

[0042] In this embodiment, two fixed feet 3 are provided, and guide slot plates 4 are symmetrically arranged on the fixed feet 3. A first slide groove 21 and a second slide groove 22 are provided on one side of the fixed feet 3. The first slide groove 21 and the second slide groove 22 extend along the height direction of the fixed feet 3, and one side of the first slide groove 21 is connected to one side of the second slide groove 22. The first slide groove 21 is provided with a first gear 26, a second gear 36 and a transmission chain 37. The second gear 36 is rotatably connected to the output shaft of the second drive motor 28.

[0043] In this embodiment, a sensor (not shown in the figure) is provided on the outside of the connecting part 32, which can facilitate the determination of the contact between the hull 2 ​​and the water surface.

[0044] like Figure 1 As shown, the guide trough plate 4 includes an extension 31, a connecting part 32, and a sliding part 33. One end of the extension 31 is fixedly connected to one end of the connecting part 32, and the other end of the extension 31 extends outward from the guide trough plate 4, forming an outward V-shape, which helps guide the hull 2 ​​to straighten its hull before it enters the guide trough. The other end of the connecting part 32 is fixedly connected to one end of the sliding part 33. One end of the boat support 34 is fixedly connected to the inner side of the connecting part 32, and the other end of the boat support 34 extends into the guide trough, ensuring that the boat support 34 can support the bottom of the hull 2 ​​after it enters the guide trough, thus providing support for the hull 2. In addition, the other end of the sliding part 33 extends into the second sliding groove 22 and forms a sliding connection with the second sliding groove 22. The sliding part 33 limits the horizontal movement of the guide plate 4, allowing it to slide only vertically. Simultaneously, the other end of the sliding part 33 connects to one end of the connecting block 34, and the transmission chain engages with the protrusion 35 at the other end of the connecting block 34. This drives the second gear 36 via the second drive motor 28, which in turn rotates the transmission chain 37. This causes the connecting block 34 and the transmission chain 37 to rotate simultaneously, enabling the transmission chain 37 to drive the guide plate 4 and the hull 2 ​​to slide vertically along the fixed support. This ensures that the guide plate 4, carrying the hull 2 ​​and the support 4, supports the hull 2 ​​and keeps it stably off the water surface, avoiding the influence of waves and varying water levels, thus ensuring the stability of the hull during the recycling of the garbage bins.

[0045] In this embodiment, a net cage for recycling is provided at the bottom of the hull 2.

[0046] like Figure 11 As shown, a method for cleaning up waste on the water surface includes the following steps: (1) After the net cage is full of garbage, the hull enters the automated dock along the guide trough plate; (2) Start the lifting device, and the boat lift will lift the hull together to the front of the recovery device and connect with the guide rail of the recovery device; (3) Open the belt drive structure, and the buckle pulls the net box along the guide rail into the net box storage ring; (4) After the net cage slides into the corresponding position of the net cage storage ring, the lifting screw drives the connecting rod and belt drive structure to rise, and the first drive motor is started so that the active gear drives the driven gear to rotate, so that the inner ring slides along the inner side of the outer ring, and rotates the net cages in other slots to the position corresponding to the hull. (5) The lifting screw descends and simultaneously drives the connecting rod and belt drive structure to descend, so that the buckle engages with the net box. Then the belt drive structure drives the buckle to push the net box along the guide rail out of the net box storage ring, so that the net box is combined with the hull and the net box replacement is completed. (6) The lifting device lowers the hull and net cage to the water surface, and the hull leaves the cabin along the guide trough.

Claims

1. A method for cleaning up waste on the water surface, comprising recycling and replacing net cages inside a ship via a dock, characterized in that: The dock includes a lifting device and a recovery device. The lifting device includes fixed legs, guide plates, a support for the hull, and limiting springs for positioning. The recovery device includes a net cage storage ring and a push-pull device. The net cage storage ring includes an outer ring and an inner ring. The inner ring is disposed within a cavity of the net cage storage ring. One end of the push-pull device is fixedly connected to the outer ring, and the other end is disposed within the inner ring and moves along the axial and height directions of the inner ring. The outer ring is fitted onto the inner ring, and the inner ring and outer ring are in a rolling connection. The inner wall of the inner ring has two or more sets of sliding grooves, each set of sliding grooves including two opposing guide rails. One end of the inner ring is provided with a driven gear, and the outer side of the outer ring is provided with a first drive motor. The first drive motor is rotatably connected to the drive gear. The drive gear passes through a second through hole on the outer ring and meshes with the driven gear to rotate. One end of the fixed bracket is fixedly connected to the outer side of the outer ring. One side of the fixed bracket is provided with a first slide groove and a second slide groove that match the guide groove plate. The first slide groove is provided with a gear and a transmission chain. The transmission chain is engaged with one end of the guide groove plate. The boat support is located inside the guide groove plate. The limiting spring is located inside the guide groove plate and close to one end of the net cage storage ring. Includes the following steps: (1) After the net cages on the hull are full of waste, the hull enters the dock along the guide trough plate; (2) Start the lifting device, lift the boat together to the front of the recovery device and raise the boat above the water surface, and connect the guide rail of the recovery device without net cage to the net cage on the boat. (3) Activate the push-pull device, which pulls the net cage on the hull along the guide rail into the net cage storage ring; (4) After the net cage slides into the corresponding position of the net cage storage ring, the push-pull device rises and the first drive motor is started, so that the active gear drives the driven gear to rotate, so that the inner ring slides along the inner side of the outer ring and rotates the net cages in other slots to the position corresponding to the hull. (5) The push-pull device descends, so that the push-pull device engages with the net cage. Then the push-pull device pushes the net cage to slide out of the net cage storage ring along the guide rail, so that the net cage is combined with the hull and the net cage replacement is completed. (6) The lifting device lowers the hull and net cage to the water surface, and the hull leaves the dock along the guide trough.

2. The method for cleaning up waste on the water surface according to claim 1, characterized in that: The gear includes a first gear and a second gear. The second gear is rotatably connected to the output shaft of a second drive motor. The second drive motor is installed on the side of the fixed bracket near the lifting device. There are two or more fixed brackets. Step (2) specifically includes the second drive motor driving the second gear to rotate, thereby driving the transmission chain and guide trough plate to slide upward along the length of the trough, so as to lift the hull and the net cage; Step (6) includes the second drive motor driving the second gear to rotate, thereby driving the transmission chain and guide trough plate to slide downward along the length of the trough, so as to realize the descent of the hull and the net cage.

3. The method for cleaning up waste on the water surface according to claim 1, characterized in that: The guide slot plates are symmetrically arranged. Each guide slot plate includes an extension, a connecting part, and a sliding part. One end of the extension is fixedly connected to one end of the connecting part, and the other end of the extension extends outward from the guide slot plate. The other end of the connecting part is fixedly connected to one end of the sliding part, and the other end of the sliding part extends into the second slide groove and forms a sliding connection with the second slide groove.

4. The method for cleaning up waste on the water surface according to claim 3, characterized in that: The other end of the sliding part is connected to one end of the connecting block, and the other end of the connecting block is provided with a protrusion that matches the transmission chain, and the protrusion engages with the transmission chain.

5. A method for cleaning up waste on the water surface according to claim 3, characterized in that: One end of the boat support is fixedly connected to the inner side of the connecting part, and the other end of the boat support extends downward in the guide groove.

6. The method for cleaning up waste on the water surface according to claim 1, characterized in that: One end of the guide rail is fixedly connected to the inner side of the inner ring, and the other end of the guide rail extends in the opposite direction. A stepped part is provided on one side of the guide rail, and the stepped parts of the two opposite guide rails form a groove that matches the protrusions on both sides of the bottom of the cage between the stepped parts and the inner side wall of the inner ring. Step (4) specifically includes that after the net cage slides into the corresponding position of the net cage storage ring, the push-pull device slides a distance in the opposite direction of the net cage sliding into the net cage storage ring, so that the push-pull device is separated from the net cage.

7. A method for cleaning up waste on the water surface according to claim 1, characterized in that: The push-pull device includes a connecting plate, a lifting screw, a lifting screw motor, a belt drive structure, and a buckle. The connecting plate is located at one end of the outer ring near the driven gear. Both ends of the connecting plate are fixedly connected to the outer ring. A lifting screw motor and a lifting screw are located on the side of the connecting plate near the outer ring. The lifting screw motor is connected to the lifting screw. One end of the lifting screw is connected to a connecting rod. A belt drive structure is located on the other end of the connecting rod. The buckle is located on the belt drive structure and moves with the belt. Step (3) includes the lifting screw motor driving the lifting screw to rotate, thereby moving the connecting rod to the position corresponding to the net cage on the hull, and engaging the buckle with the net cage on the hull. The belt drive structure moves and drives the net cage to slide along the guide rail into the net cage storage ring. Step (4) includes sliding the net cage into the corresponding position of the net cage storage ring, driving the lifting screw motor to lift the lifting screw, starting the first drive motor so that the active gear drives the driven gear to rotate, so that the inner ring slides along the inner side of the outer ring, and rotates the net cages in other slots to the position corresponding to the hull. Step (5) includes the lifting screw motor driving the lifting screw to descend, so that the buckle engages with the net cage located corresponding to the hull, and then the belt drive structure moves and drives the buckle to push the net cage into the hull.

8. A method for cleaning up waste on the water surface according to claim 7, characterized in that: The belt drive structure is mounted on the connecting rod. The belt drive structure includes a first pulley, a second pulley, and a belt mounted on one side of the connecting rod. The second pulley is rotatably connected to the output end of a third drive motor. The first pulley and the second pulley are driven by the belt.

9. A method for cleaning up waste on the water surface according to claim 8, characterized in that: A fixing block is provided at the bottom of the belt, one end of the fixing block is fixedly connected to the belt, and the buckle is provided at the other end of the fixing block; Step (3) specifically includes that after the net cage on the hull is connected to the guide rail of the recycling device, the third drive motor drives the pulley and belt, thereby driving the buckle fixed on the belt to move horizontally towards the net cage, so that the buckle engages with the net cage. Step (5) specifically includes sliding the net cage out of the net cage storage ring along the guide rail, and then the belt drives the buckle to continue moving a distance so that the buckle disengages from the net cage.

10. A method for cleaning up waste on the water surface according to claim 3, characterized in that: A sensor is provided on the outside of the connection part; step (2) includes starting the lifting device, lifting the hull together to the front of the recovery device, and determining that the hull is raised above the water surface when the sensor detects that the corresponding water level has been reached, and connecting the guide rail in the recovery device that does not have a net box to the net box on the hull.

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