Floating object removing device for wetland restoration

Abstract

The invention relates to the technical field of wetland restoration, and discloses a floating object removing device for wetland restoration, which comprises a floating platform, and also comprises a conveying device arranged on the floating platform and uniformly connected with a plurality of groups of baffles; the collecting assembly is arranged on the side, close to the bottom end of the conveying equipment, of the floating platform and used for stirring the floating objects on the wetland to one side of the conveying equipment; the screening cavity and the collecting cavity are sequentially arranged on the side, close to the top end of the conveying equipment, of the floating platform, a multi-stage screening assembly is arranged in the screening cavity, floating objects are screened in a vibration mode, the conveying equipment is knocked, and a collecting box is arranged on the side, close to the multi-stage screening assembly, of the collecting cavity; according to the device, the cleaning area of the device on floating objects can be increased, the cleaning effect of the floating objects mixed in soil is improved, the water content of the collected floating objects is reduced to the maximum extent, and the anti-blocking effect of the filter plate is improved.

Description

Technical Field

[0001] This invention relates to the field of wetland restoration technology, specifically to a floating debris removal device for wetland restoration. Background Technology

[0002] Wetland restoration is a systematic ecological project, the core of which is to restore the natural structure and function of wetlands. The main work follows the logical chain of "assessment-restoration-monitoring": First, a baseline survey is conducted to diagnose key issues such as hydrological obstruction, pollution or species invasion; then targeted interventions are implemented, focusing on hydrological restoration (such as dredging waterways and simulating natural water level fluctuations) and water quality improvement, among which the removal of floating debris in the water is an important part of water quality improvement.

[0003] Floating debris removal typically employs a combination of manual and mechanical methods, along with interception and dredging. The removed waste must be sorted and treated: organic plant remains can be recycled, while other waste must be disposed of harmlessly. The fundamental solution lies in source control, requiring strengthened management of surrounding communities and regular inspections to establish a long-term governance mechanism and prevent recurrence.

[0004] Most current floating debris removal devices simply clean up floating debris in designated areas by moving the equipment. However, due to the low water level in wetlands, some floating debris (such as plastic bags) may not be floating on the water surface, which not only affects the collection efficiency of floating debris but also results in some debris being missed. Furthermore, during screening, even if a vibrating screen is used, it is easily clogged by algae, plant fibers, etc. In addition, floating debris can easily remain on the conveying equipment. Summary of the Invention

[0005] This invention provides a floating debris removal device for wetland restoration. The collection component guides the water flow around the device, expanding the removal area. It also helps to separate some floating debris from the soil, improving the removal effect and efficiency. Furthermore, the multi-stage screening component uses vibration to classify and screen the floating debris. Combined with intermittent backflushing of the backflushing component, the multi-stage screening component undergoes "continuous backflushing + pulse backflushing," preventing screen blockage and ensuring effective and efficient screening of floating debris. This solves the problems of low floating debris collection efficiency, poor collection effect, and easy screen blockage mentioned in the background art.

[0006] This invention provides the following technical solution: A floating debris removal device for wetland restoration includes a floating platform and further comprises: a conveying device disposed on the floating platform, wherein multiple sets of baffles are evenly connected to the conveying device; a collection component disposed on the side of the floating platform near the bottom of the conveying device, for pushing floating debris on the wetland toward the conveying device; a screening chamber and a collection chamber disposed sequentially on the side of the floating platform near the top of the conveying device, wherein the screening chamber is provided with a multi-stage screening component to screen the floating debris by vibration and to tap the conveying device, and a collection box is disposed on the side of the collection chamber near the multi-stage screening component; and a backflushing component disposed on the side of the screening chamber near the multi-stage screening component, wherein the backflushing component and the collection component are connected by a pipe for intermittently performing continuous backflushing and pulse backflushing on the multi-stage screening component.

[0007] As a preferred embodiment of the present invention, the collection assembly includes a turntable rotatably connected to a floating platform. The turntable is evenly provided with multiple sets of connecting rods, and multiple sets of levers are evenly fixedly connected to the connecting rods. A cleaning section is provided on the side of the floating platform near the levers for cleaning up floating objects entangled in the levers.

[0008] As a preferred embodiment of the present invention, the cleaning unit includes a connecting shaft rotatably connected to a floating platform. A scraper is fixedly connected to the side of the connecting shaft near the lever. The end of the scraper is in contact with the lever. A coil spring is symmetrically fixedly connected between the floating platform and the scraper. The coil spring is sleeved on the connecting shaft. A mounting plate is symmetrically fixedly connected to the outer wall of the scraper. A limit hole is provided on the mounting plate. A limit rod is fixedly connected inside the limit hole. A double-cavity compression rod is fixedly connected to the side of the floating platform near the limit rod. A universal ball is rotatably connected to the end of the double-cavity compression rod. The universal ball is slidably connected to the limit rod.

[0009] As a preferred embodiment of the present invention, it further includes tracked wheels symmetrically arranged at the bottom of the floating platform. A linkage is provided between one set of shaft ends of the tracked wheels and the turntable of the conveying device. The linkage includes a drive wheel, a guide wheel and a belt. The tracked wheels drive the turntable to rotate in the same direction and drive the conveying device to rotate in the opposite direction.

[0010] As a preferred embodiment of the present invention, the multi-stage screening assembly includes an installation groove formed in the screening chamber near the conveying equipment. A baffle is provided between the screening chamber and the collection chamber. A first filter plate and a second filter plate are provided between the installation groove and the baffle. The first filter plate is located above the second filter plate. A sealing groove communicating with the installation groove is formed on the side wall of the floating platform. A spring is fixedly connected inside the sealing groove. A support plate that is slidably connected to the sealing groove is fixedly connected to the end of the spring. The support plate is in contact with the bottom of the first filter plate or the second filter plate. A connecting cavity is connected between the bottoms of the two sets of sealing grooves. A rotating shaft is rotatably connected to the side of the floating platform near the bottom of the first filter plate and the second filter plate. A cam is fixedly connected to the rotating shaft. A driving component is provided between one set of the rotating shafts and one set of shafts of the conveying equipment, as well as between the two sets of rotating shafts. The driving component includes a pulley and a belt.

[0011] As a preferred embodiment of the present invention, it further includes an arc-shaped groove formed in the side wall of the floating platform, one end of the arc-shaped groove being connected to the connecting cavity, a push plate being slidably connected inside the arc-shaped groove, and a striking plate being hinged to the side of the floating platform near the push plate, the striking plate being located below the conveying equipment.

[0012] As a preferred embodiment of the present invention, both the first filter plate and the second filter plate are inclined, the collection box is slidably connected to the floating platform, and one end of the collection box extends to the outside of the floating platform. The top of the collection box is located below the bottom of the first filter plate and the second filter plate, respectively.

[0013] As a preferred embodiment of the present invention, the backflush assembly includes guide rails symmetrically arranged on the side of the floating platform near the first filter plate and the second filter plate below. A slider is slidably connected in the guide rail, and a nozzle is connected to the side of the slider near the first filter plate or the second filter plate. The guide rails are parallel to the first filter plate or the second filter plate, respectively. The air outlets of the two sets of compression chambers of the dual-chamber compression rod are connected to the nozzles below the first filter plate and the second filter plate through pipes, and the pipes extend from the side wall of the floating platform into the guide rail.

[0014] As a preferred embodiment of the present invention, it further includes a flow guide cavity opened in the floating platform. The flow guide cavity is located below the conveying equipment, the screening chamber and the collection chamber, and the bottom of the screening chamber and the collection chamber are provided with through holes that match the flow guide cavity. Multiple sets of drainage outlets are opened on the side of the floating platform near the collection box.

[0015] As a preferred embodiment of the present invention, it further includes a photovoltaic panel fixedly connected to the floating platform, the photovoltaic panel being located above the conveying equipment, the screening chamber, and the collection chamber.

[0016] Compared with the prior art, the present invention provides a floating debris removal device for wetland restoration, which has the following beneficial effects: 1. In this floating debris removal device for wetland restoration, the collection component can continuously gather floating debris to the conveying equipment, and at the same time effectively clean up some of the floating debris buried in the soil. The collection component is self-cleaning to prevent algae and plant fibers from entangled and reducing collection efficiency. The conveying equipment and multi-stage screening components minimize the water content of the floating debris, increase the collection capacity of the equipment, extend the working time of the equipment, and reduce the cost of floating debris collection.

[0017] 2. In this floating debris removal device for wetland restoration, through multi-stage screening components and backflushing components, "continuous backflushing + pulse backflushing" can be implemented on the screen holes while vibrating and screening. This ensures uniform airflow distribution on the filter plate and avoids deep clogging of the filter plate, thus maximizing the screening effect and efficiency of the filter plate.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention can increase the area of ​​the device for removing floating objects, improve the cleaning effect of floating objects mixed in the soil, minimize the water content of the collected floating objects, and improve the anti-clogging effect of the filter plate. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a first three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the lifting component of the present invention; Figure 3 This is a second perspective view of the present invention; Figure 4 This is a schematic diagram of the floating platform and collection components in this invention; Figure 5 This is a partial cross-sectional structural diagram of the floating platform in this invention; Figure 6 For the present invention Figure 4 A schematic diagram of the structure of part A; Figure 7 For the present invention Figure 5 A schematic diagram of the structure of part B.

[0021] In the diagram: 1. Floating platform; 2. Tracked wheel; 3. Photovoltaic panel; 4. Conveying equipment; 5. Baffle; 6. Collection component; 61. Turntable; 62. Connecting rod; 63. Lever; 64. Connecting shaft; 65. Scraper; 66. Coil spring; 67. Mounting plate; 68. Limiting hole; 69. Dual-chamber compression rod; 610. Limiting rod; 611. Universal ball; 7. Linkage component; 8. Screening chamber; 9. Collection chamber; 10. Guide chamber; 11. Drain outlet; 12. Mounting groove; 13. Stop block; 14. First filter plate; 15. Second filter plate; 16. Rotating shaft; 17. Cam; 18. Guide rail; 19. Slider; 20. Nozzle; 21. Driving component; 22. Collection box; 23. Sealing groove; 24. Spring; 25. Support plate; 26. Connecting cavity; 27. Arc groove; 28. Push plate; 29. ​​Striking plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Reference Figures 1-7 A floating debris removal device for wetland restoration includes a floating platform 1, and further includes: a conveying device 4, disposed on the floating platform 1, with multiple sets of baffles 5 evenly connected to the conveying device 4; a collecting component 6, disposed on the side of the floating platform 1 near the bottom of the conveying device 4, used to push floating debris on the wetland toward the conveying device 4; a screening chamber 8 and a collecting chamber 9, sequentially disposed on the side of the floating platform 1 near the top of the conveying device 4, wherein the screening chamber 8 is provided with a multi-stage screening component, which screens the floating debris by vibration and taps the conveying device 4, and the collecting chamber 9 is provided with a [missing information - likely a device name or component]. Collection box 22; backflushing assembly, set on the side of screening chamber 8 near the multi-stage screening assembly, the backflushing assembly and collection assembly 6 are connected by a pipe, used to intermittently perform continuous backflushing and pulse backflushing on the multi-stage screening assembly, also includes photovoltaic panel 3 fixedly connected to floating platform 1, photovoltaic panel 3 is located above conveying equipment 4, screening chamber 8 and collection chamber 9, photovoltaic panel 3 is used to provide self-powered power to the equipment, the platform does not need an external power supply, etc., and can also play a shading role, reduce the solar temperature rise in screening chamber 8, not only slow down the secondary reproduction of algae in the chamber, but also prevent floating objects from completely sticking to the first filter plate 14 due to drying.

[0024] In this embodiment, the floating platform 1 serves as the machine's floating foot, resting on the wetland surface. It bears its own weight and lifts all heavy components above the water, preventing them from sinking into the silt. Its shallow draft and low pressure prevent damage to grass roots and peat layers, thus providing a foundation for repair rather than secondary destruction. The baffles 5 are stepped; as the equipment advances close to the water, they scoop up surface floating debris, which then ascends diagonally upwards. The baffles 5 are evenly spaced, and the conveyor belt of the conveyor device 4 filters water. During transport, water flows downwards along the conveyor device 4. The collection component 6 gathers floating debris and removes some debris buried in the surface soil. It also self-cleanes, preventing entanglement and reducing repeated compaction of the bottom mud. The multi-stage screening component performs vibratory screening of the floating debris. During screening, the back-blowing component intermittently and continuously back-blown and pulsed back-blown the screen openings to ensure screening effect and efficiency. The screening chamber 8 and collection chamber 9 are used for screening and classifying the floating debris, thus completing the collection of the floating debris. Reference Figures 1-4 The collection component 6 includes a turntable 61 rotatably connected to the floating platform 1. The turntable 61 is evenly provided with multiple sets of connecting rods 62. Multiple sets of levers 63 are evenly fixedly connected to the connecting rods 62. A cleaning part is provided on the side of the floating platform 1 near the levers 63 for cleaning up floating objects entangled in the levers 63.

[0025] In this embodiment, the lever 63 combs the water film towards the inlet of the conveying device 4 like comb teeth. The lever 63 is a slender round rod, which reduces the water-facing area and reduces resistance. The levers form a "V"-shaped confluence channel, which drives the floating objects towards the center and improves the collection efficiency. At the same time, it can also carry out the floating objects buried on the surface of the soil by disturbing the water flow, thereby ensuring the removal effect of the floating objects.

[0026] Reference Figure 4 and Figure 6 The cleaning unit includes a connecting shaft 64 rotatably connected to the floating platform 1. A scraper 65 is fixedly connected to the side of the connecting shaft 64 near the lever 63. The end of the scraper 65 is in contact with the lever 63. A coil spring 66 is symmetrically fixedly connected between the floating platform 1 and the scraper 65. The coil spring 66 is sleeved on the connecting shaft 64. A mounting plate 67 is symmetrically fixedly connected to the outer wall of the scraper 65. A limit hole 68 is opened on the mounting plate 67. A limit rod 610 is fixedly connected inside the limit hole 68. A double-cavity compression rod 69 is fixedly connected to the side of the floating platform 1 near the limit rod 610. A universal ball 611 is rotatably connected to the end of the double-cavity compression rod 69. The universal ball 611 is slidably connected to the limit rod 610.

[0027] In this embodiment, filamentous algae, fishing lines, and fiber bags are commonly found in wetlands. The lever 63 is an aquatic comb cleaner. When the lever 63 rotates to the inner side of the platform, the scraper 65 automatically scrapes away the tangled material, preventing the lever 63 from becoming increasingly entangled and losing its combing function. The scraper 65 is on the surface of the lever 63; when the lever 63 rotates, the scraper 65 does not rotate, and the relative motion scrapes off the tangled material. The end of the scraper 65 is made into a cutting edge to reduce the entanglement of weeds. The coil spring 66 keeps the scraper 65 in close contact with the surface at all times, while allowing it to handle coarse weeds. When encountering large tree branches, the scraper moves backward to avoid rigid impact and breakage. After resetting, it closes again, ensuring a flexible cycle of scraping, moving, and scraping again. In addition, each time the scraper 65 swings, the limit rod 610 pushes and pulls the piston once through the universal ball 611, converting the mechanical kinetic energy of the lever 63 into air pressure, which is stored in the dual chambers to provide an air source for the subsequent back-blowing component. The universal ball 611 allows for angled pushing and pulling to avoid jamming. The process of cleaning up tangles → generating air pressure → using it for back-blowing forms a closed loop, realizing the cascade utilization of energy.

[0028] Reference Figure 3 and Figure 5 It also includes tracked wheels 2 symmetrically arranged at the bottom of the floating platform 1. A linkage 7 is provided between one set of shaft ends of the tracked wheels 2 and the conveyor 4 and the turntable 61. The linkage 7 includes a drive wheel, a guide wheel and a belt. The tracked wheels 2 drive the turntable 61 to rotate in the same direction and drive the conveyor 4 to rotate in the opposite direction.

[0029] In this embodiment, the wetland has a low load-bearing limit, and the tracked wheels 2 distribute the weight of the entire machine into a long belt, with a ground pressure much lower than that of the tires. At the same time, the tracked wheels 2 lightly bite the surface peat or float, providing traction when in contact with the surface to prevent slippage. When floating, they oscillate in the water through a plate-like structure, acting as a paddle, suitable for various terrains. The drive wheel and belt drive the turntable 61 at low speed in the same direction, ensuring that the lever 63 pushes the garbage towards the conveyor inlet. The reverse high-speed drive of the conveyor equipment 4 ensures that the baffle 5 immediately lifts the garbage off the water surface. The opposite direction and speed difference form a continuous flow of pushing forward and lifting backward, avoiding garbage accumulation at the inlet and secondary water fall.

[0030] Reference Figure 5 and Figure 7The multi-stage screening assembly includes an installation groove 12 located on the side of the screening chamber 8 near the conveying device 4. A baffle 13 is provided between the screening chamber 8 and the collection chamber 9. A first filter plate 14 and a second filter plate 15 are provided between the installation groove 12 and the baffle 13. The first filter plate 14 is located above the second filter plate 15. A sealing groove 23 communicating with the installation groove 12 is provided on the side wall of the floating platform 1. A spring 24 is fixedly connected inside the sealing groove 23. A support plate 25 slidably connected to the end of the spring 24 is fixedly connected to the end of the spring 24. The support plate 25 is in contact with the bottom of the first filter plate 14 or the second filter plate 15. A connecting cavity 26 is connected between the bottoms of the two sets of sealing grooves 23. The side of the floating platform 1 near the bottom of the first filter plate 14 and the second filter plate 15 is rotatably connected to the first filter plate 14 and the second filter plate 15. A rotating shaft 16 is fixedly connected to a cam 17. A drive component 21 is provided between one set of rotating shafts 16 and one set of shaft ends of the conveying device 4, as well as between the two sets of rotating shafts 16. The drive component 21 includes a pulley and a belt, and also includes an arc-shaped groove 27 opened in the side wall of the floating platform 1. One end of the arc-shaped groove 27 is connected to the connecting cavity 26. A push plate 28 is slidably connected inside the arc-shaped groove 27. A striking plate 29 is hinged to the side of the floating platform 1 near the push plate 28. The striking plate 29 is located below the conveying device 4. The first filter plate 14 and the second filter plate 15 are both inclined. The collection box 22 is slidably connected to the floating platform 1, and one end of the collection box 22 extends to the outside of the floating platform 1. The top of the collection box 22 is located below the bottom ends of the first filter plate 14 and the second filter plate 15, respectively.

[0031] In this embodiment, the support plate 25 and spring 24 provide elastic support for the first filter plate 14 or the second filter plate 15. The rotation of cam 17 transmits vibration to the first filter plate 14 or the second filter plate 15. At the same time, spring 24 absorbs hard impacts to prevent fatigue cracks caused by hard collision between cam 17 and the first filter plate 14 or the second filter plate 15. Push plate 28 is pushed by air pressure in connecting cavity 26 and slides along arc groove 27, periodically lifting the striking plate 29. The striking plate 29 suddenly rises and strikes the conveying device 4 from bottom to top, causing the floating objects remaining above it to be stripped off by inertial force and fall back into screening cavity 8, avoiding secondary pollution caused by baffle 5 bringing floating objects back to the water surface. The tilt angle of the first filter plate 14 and the second filter plate 15 allows the floating objects to slide down spontaneously under the action of gravity. At the same time, the horizontal vibration is converted into a jump-slide composite motion, which increases the screening speed. The collection box 22 is located at the lowest end, and the garbage just slides into the collection box 22, reducing manual material handling.

[0032] Reference Figures 5-7The backflush assembly includes guide rails 18 symmetrically arranged on one side of the floating platform 1 near the first filter plate 14 and the second filter plate 15 below. A slider 19 is slidably connected inside the guide rail 18. A nozzle 20 is connected to the side of the slider 19 near the first filter plate 14 or the second filter plate 15. The guide rail 18 is parallel to the first filter plate 14 or the second filter plate 15 respectively. The air outlets of the two sets of compression chambers of the dual-chamber compression rod 69 are connected to the nozzles 20 below the first filter plate 14 and the second filter plate 15 respectively through pipes. The pipes extend from the side wall of the floating platform 1 into the guide rail 18.

[0033] In this embodiment, the nozzle 20 is mounted on the slider 19, which moves back and forth along the guide rail 18 (the guide rail 18 is electrically driven) to form a moving air knife. The moving air knife has a larger coverage area than the fixed air knife, which can blow floating objects away from the first filter plate 14 or the second filter plate 15. The guide rail 18 is parallel to the first filter plate 14 or the second filter plate 15 to ensure that the distance between the nozzle 20 and the backflush force is uniform. The two sets of compression chambers of the dual-chamber compression rods 69 on both sides are connected to the nozzles 20 at the first filter plate 14 and the second filter plate 15, respectively, to realize intermittent continuous backflush and pulse backflush. The pipe runs along the side wall of the floating platform 1 to prevent it from being hooked by floating objects.

[0034] Reference Figure 5 It also includes a flow guide cavity 10 opened in the floating platform 1. The flow guide cavity 10 is located below the conveying device 4, the screening chamber 8 and the collection chamber 9. The bottom of the screening chamber 8 and the collection chamber 9 are provided with through holes that match the flow guide cavity 10. Multiple sets of drain outlets 11 are opened on the side of the floating platform 1 near the collection box 22.

[0035] In this embodiment, the flow guiding cavity 10 is an underwater culvert. The water drained during the screening and collection process falls directly into the flow guiding cavity 10 through the through hole, flows along the bottom of the cavity to the drain outlet 11, and is discharged back to the wetland from the low point of the tail of the floating platform 1. In addition, the drain outlet 11 is located at the tail, which can play a slight reverse thrust on the floating platform 1 to reduce the resistance to the movement of the equipment.

[0036] Components not described in detail in this article are existing technologies.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floating debris removal device for wetland restoration, comprising a floating platform (1), characterized in that, Also includes: A conveying device (4) is installed on the floating platform (1), and multiple sets of baffles (5) are evenly connected on the conveying device (4). The collection component (6) is located on one side of the floating platform (1) near the bottom of the conveying device (4) and is used to move floating objects on the wetland toward the conveying device (4). The screening chamber (8) and the collection chamber (9) are sequentially arranged on one side of the floating platform (1) near the top of the conveying device (4). The screening chamber (8) is equipped with a multi-stage screening assembly to screen the floating objects by vibration and to strike the conveying equipment (4). The collection chamber (9) is equipped with a collection box (22) on the side near the multi-stage screening assembly. A backflush assembly is located on the side of the screening chamber (8) near the multi-stage screening assembly. The backflush assembly is connected to the collection assembly (6) via a pipe and is used to intermittently perform continuous backflush and pulse backflush on the multi-stage screening assembly.

2. The floating debris removal device for wetland restoration according to claim 1, characterized in that, The collection component (6) includes a turntable (61) rotatably connected to the floating platform (1). The turntable (61) is evenly provided with multiple sets of connecting rods (62). Multiple sets of levers (63) are evenly fixedly connected to the connecting rods (62). The floating platform (1) is provided with a cleaning section on the side near the levers (63) for cleaning up floating objects entangled in the levers (63).

3. A floating debris removal device for wetland restoration according to claim 2, characterized in that, The cleaning unit includes a connecting shaft (64) rotatably connected to the floating platform (1). A scraper (65) is fixedly connected to the side of the connecting shaft (64) near the lever (63). The end of the scraper (65) is in contact with the lever (63). A coil spring (66) is symmetrically fixedly connected between the floating platform (1) and the scraper (65). The coil spring (66) is sleeved on the connecting shaft (64). An mounting plate (67) is symmetrically fixedly connected to the outer wall of the scraper (65). A limit hole (68) is opened on the mounting plate (67). A limit rod (610) is fixedly connected inside the limit hole (68). A double-cavity compression rod (69) is fixedly connected to the side of the floating platform (1) near the limit rod (610). A universal ball (611) is rotatably connected to the end of the double-cavity compression rod (69). The universal ball (611) is slidably connected to the limit rod (610).

4. A floating debris removal device for wetland restoration according to claim 2, characterized in that, It also includes track wheels (2) symmetrically arranged at the bottom of the floating platform (1). A linkage (7) is provided between one set of shaft ends of the track wheels (2) and the conveying device (4) and the turntable (61). The linkage (7) includes a drive wheel, a guide wheel and a belt. The track wheels (2) drive the turntable (61) to rotate in the same direction and drive the conveying device (4) to rotate in the opposite direction.

5. A floating debris removal device for wetland restoration according to claim 3, characterized in that, The multi-stage screening assembly includes an installation groove (12) opened on the side of the screening chamber (8) near the conveying device (4). A baffle (13) is provided between the screening chamber (8) and the collection chamber (9). A first filter plate (14) and a second filter plate (15) are provided between the installation groove (12) and the baffle (13). The first filter plate (14) is located above the second filter plate (15). A sealing groove (23) communicating with the installation groove (12) is opened on the side wall of the floating platform (1). A spring (24) is fixedly connected inside the sealing groove (23). A support plate (25) that is slidably connected to the end of the spring (24) is fixedly connected to the sealing groove (23). The support plate (25) is in contact with the bottom of the first filter plate (14) or the second filter plate (15). A connecting cavity (26) is connected between the bottoms of the two sets of sealing grooves (23). The floating platform (1) is rotatably connected to a rotating shaft (16) on one side near the bottom of the first filter plate (14) and the second filter plate (15). A cam (17) is fixedly connected to the rotating shaft (16). A drive component (21) is provided between one set of the rotating shafts (16) and one set of shafts of the conveying device (4) and between the two sets of rotating shafts (16). The drive component (21) includes a pulley and a belt.

6. A floating debris removal device for wetland restoration according to claim 5, characterized in that, It also includes an arc-shaped groove (27) opened in the side wall of the floating platform (1), one end of the arc-shaped groove (27) is connected to the connecting cavity (26), a push plate (28) is slidably connected inside the arc-shaped groove (27), and a striking plate (29) is hinged on the side of the floating platform (1) near the push plate (28), and the striking plate (29) is located below the conveying device (4).

7. A floating debris removal device for wetland restoration according to claim 5, characterized in that, The first filter plate (14) and the second filter plate (15) are both inclined. The collection box (22) is slidably connected to the floating platform (1), and one end of the collection box (22) extends to the outside of the floating platform (1). The top of the collection box (22) is located below the bottom of the first filter plate (14) and the second filter plate (15).

8. A floating debris removal device for wetland restoration according to claim 5, characterized in that, The backflush assembly includes a guide rail (18) symmetrically arranged on one side of the floating platform (1) near the first filter plate (14) and the second filter plate (15) below. A slider (19) is slidably connected in the guide rail (18), and a nozzle (20) is connected to the side of the slider (19) near the first filter plate (14) or the second filter plate (15). The guide rail (18) is parallel to the first filter plate (14) or the second filter plate (15). The air outlets of the two sets of compression chambers of the dual-chamber compression rod (69) are connected to the nozzles (20) below the first filter plate (14) and the second filter plate (15) through pipes. The pipes extend from the side wall of the floating platform (1) into the guide rail (18).

9. A floating debris removal device for wetland restoration according to claim 7, characterized in that, It also includes a flow guide cavity (10) opened in the floating platform (1), the flow guide cavity (10) is located below the conveying device (4), the screening chamber (8) and the collection chamber (9), and the bottom of the screening chamber (8) and the collection chamber (9) are provided with through holes that match the flow guide cavity (10). The floating platform (1) has multiple sets of drain outlets (11) on the side near the collection box (22).

10. A floating debris removal device for wetland restoration according to claim 1, characterized in that, It also includes a photovoltaic panel (3) fixedly connected to the floating platform (1), the photovoltaic panel (3) being located above the conveying device (4), the screening chamber (8) and the collection chamber (9).

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