A device for collecting sea litter

Abstract

The utility model belongs to garbage collection technical field, concretely is a kind of sea garbage collection device, including floating platform, the bottom of floating platform is fixedly connected with winding frame, the side of winding frame is equipped with servo motor, the output of servo motor is fixedly connected with winding roller, and the outer surface wall of winding roller is wound with steel wire rope, the bottom of winding frame is fixedly connected with guide rail, when working, winding and releasing steel wire rope are driven winding roller by setting servo motor, and reset positioning structure is set, winding of steel wire rope is facilitated, and then steel wire rope is finally fixed on the mooring point of device, according to preset operation range, by adjusting the length of steel wire rope, device is limited in the circular operation area of diameter 50-100 meters, and then when tidal level is greatly raised and lowered, steel wire rope can change its site according to actual demand, solve the fatigue damage due to frequent tension change, and steel wire rope is difficult to adapt to the problem of severe fluctuation of water depth.

Description

Technical Field

[0001] This utility model belongs to the field of waste collection technology, specifically a device for collecting marine debris. Background Technology

[0002] With the rapid development of the global economy and the increasing frequency of human activities, marine debris pollution has become a more severe problem and a global ecological challenge. Marine debris, defined as "persistent, man-made or processed solid waste in the marine and coastal environment," originates from a wide range of sources, including industry, agriculture, and daily life. This debris often contains substances with extremely slow degradation rates, such as various plastic products, petroleum and its products, heavy metals, and radioactive nuclides. In many marine areas, the cleanup of marine debris in areas with large tidal ranges faces unprecedented challenges. China's coastal waters, influenced by the tidal waves from the Pacific Ocean and affected by seabed topography and coastal reflection, exhibit complex and diverse tidal characteristics and significant differences in tidal range distribution, particularly in the Bohai Sea, Yellow Sea, and East China Sea. In the South China Sea, tides are mainly semi-diurnal, with some areas, such as the Bohai Sea near Qinhuangdao and the Yellow River estuary, experiencing irregular diurnal tides. In contrast, the semi-diurnal tides in the South China Sea propagate as advancing waves with small tidal ranges, while the diurnal tides propagate mainly as standing waves with slightly larger tidal ranges. Along the coasts of Jiangsu, Zhejiang, and Fujian, tidal ranges can reach 4-5 meters, with the largest tidal ranges exceeding 9 meters in the waters off Jianggang in northern Jiangsu and Ganpu at the mouth of the Qiantang River. Such significant tidal variations make the distribution and movement patterns of marine debris extremely complex. During high tide, debris may be quickly washed ashore, while during low tide, it will spread to a wider area of ​​the sea with the current. Furthermore, the floating depth of debris varies at different tidal levels.

[0003] A marine debris collection device, disclosed in Chinese Patent No. CN211816137U, includes a cylinder, a collection funnel, and a collection net. Its distinguishing feature is the inclusion of a one-way valve. The cylinder is vertically positioned with openings at both ends. Defined as having buoyancy upwards, the cylinder includes a first opening at the top and a second opening at the bottom. The collection funnel is connected to the first opening with its smaller opening facing downwards. The collection net is located within the inner cavity of the cylinder, below the collection funnel. The one-way valve is connected to the second opening. The one-way valve opens when the liquid level inside the cylinder is above a certain height, allowing the liquid to drain. When the liquid level is below a certain height, the one-way valve closes. This invention utilizes the wave motion of seawater and incorporates a self-opening and self-closing one-way valve based on water pressure to achieve the circulation of seawater inside and outside the collection device, enabling automatic collection of marine debris.

[0004] Existing marine debris collection devices suffer from problems when the tide level rises or falls significantly. The rigidity of the steel wire rope causes stress concentration in the mooring system, which can easily lead to fatigue damage due to frequent tension changes. Furthermore, these devices are difficult to adapt to drastic fluctuations in water depth. The steel wire ropes in common marine debris collection devices cannot be adjusted according to the height of the tide. Therefore, a new marine debris collection device is proposed to address these issues. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a marine debris collection device.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A marine debris collection device includes a floating platform. Several winding frames are arranged around the bottom of the floating platform. A servo motor is installed on one side of each winding frame. A winding roller is fixedly connected to the output end of the servo motor. A steel wire rope is wound around the outer wall of the winding roller. A guide rail is fixedly connected to the bottom of the winding frame. A stepper motor is installed on one side of the guide rail. A single-threaded screw is fixedly connected to the output end of the stepper motor. A limit block is threadedly connected to the outer wall of the single-threaded screw. The limit block is slidably connected to the inner wall of the guide rail. A through hole is provided on the limit block. The free end of the steel wire rope passes through the through hole in the limit block and is connected to a ballast block at its end.

[0007] Preferably, the ballast block is provided with a tension trigger body, the inner surface of the tension trigger body is provided with a sliding groove, the free end of the wire rope is connected to an inner sliding rod, the inner sliding rod is inserted into the sliding groove, the inner sliding rod extends into the sliding groove and the end is fixedly connected to a sliding block, the sliding block is slidably connected in the sliding groove, and a pressure switch is installed on the top of the sliding groove.

[0008] Preferably, two limiting rods are fixedly connected inside the sliding groove, the sliding block is slidably connected to the two limiting rods, and a spring is sleeved on the limiting rod located between the sliding block and the sliding groove.

[0009] Preferably, the tension triggering body is provided with a guide frame, and guide rollers are rotatably provided on both sides of the top of the guide frame, and the wire rope is slidably disposed between the two guide rollers.

[0010] Preferably, both guide rollers are provided with annular grooves, and the wire rope is located between the annular grooves of the two guide rollers.

[0011] Preferably, a collection body is fixedly connected to the floating platform, and a collection port is opened on the front side of the collection body, with guide plates symmetrically arranged on both sides of the front of the collection port.

[0012] Preferably, the collection port is provided with a conveyor belt, and the collection port located behind the conveyor belt is provided with a collection frame.

[0013] Preferably, a guardrail is fixed around the top of the collecting body, a control terminal is installed on the top of the collecting body, a photovoltaic panel is fixedly connected to the top of the collecting body, and the control terminal is electrically connected to the photovoltaic panel.

[0014] The beneficial effects of this utility model are: 1. This utility model uses a servo motor to drive the winding roller to wind and release the wire rope, and a reset positioning structure to facilitate the winding of the wire rope. This allows the wire rope to be finally fixed at the mooring point of the device. According to the preset operating range, the device can be limited to a circular operating area with a diameter of 50-100 meters by adjusting the length of the wire rope. This allows the wire rope to change its location according to actual needs when the tide level rises or falls significantly, solving the problem of fatigue damage caused by frequent tension changes and the difficulty of the wire rope adapting to drastic fluctuations in water depth. 2. This utility model uses a pressure switch in conjunction with a spring to enable the device to monitor the tension of the wire rope in real time. When encountering strong winds or rapid currents that cause the tension to exceed the safety threshold, it automatically releases part of the wire rope length to prevent the device from shifting or being damaged due to excessive force. After the environment stabilizes, the wire rope is reset by the winding device to ensure that the device always operates within the set range. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a perspective view of the entire utility model; Figure 2 This is a perspective view of the steel wire rope in this utility model; Figure 3 This is an enlarged view of point A in this utility model; Figure 4 This is an enlarged view of section B in this utility model.

[0016] Legend: 1. Floating platform; 2. Collection body; 3. Collection port; 4. Guardrail; 5. Conveyor belt; 6. Collection frame; 7. Guide plate; 8. Steel wire rope; 9. Control terminal; 10. Rewinding frame; 11. Servo motor; 12. Rewinding roller; 13. Guide rail; 14. Tension triggering body; 15. Ballast block; 16. Photovoltaic panel; 17. Sliding groove; 18. Limiting rod; 19. Spring; 20. Sliding block; 21. Inner sliding rod; 22. Pressure switch; 23. Single-threaded screw; 24. Limiting block; 25. Stepper motor; 26. Guide frame; 27. Guide roller. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figures 1-4 This utility model provides a marine debris collection device, including a floating platform 1. Several winding frames 10 are arranged around the bottom of the floating platform 1. A servo motor 11 is installed on one side of the winding frame 10. A winding roller 12 is fixedly connected to the output end of the servo motor 11. A steel wire rope 8 is wound around the outer wall of the winding roller 12. A guide rail 13 is fixedly connected to the bottom of the winding frame 10. A stepper motor 25 is installed on one side of the guide rail 13. A single-threaded screw 23 is fixedly connected to the output end of the stepper motor 25. A limit block 24 is threadedly connected to the outer wall of the single-threaded screw 23. The limit block 24 is slidably connected to the inner wall of the guide rail 13. The limit block 24 is provided with a through hole. The free end of the steel wire rope 8 passes through the through hole on the limit block 24 and is connected to a ballast block 15 at the end.

[0019] During operation, after starting the servo motor 11, the take-up roller 12 can rotate inside the take-up frame 10. At the same time, the take-up roller 12 can control the winding and unwinding of the wire rope 8, thereby changing the release length of the wire rope 8 and ensuring that the floating platform 1 always floats on the water surface. The stepper motor 25 can drive the single-thread screw 23 to rotate and drive the limit block 24 to be limited by the guide rail 13, thereby assisting in the winding of the wire rope 8 and effectively solving the problem of the wire rope 8 accumulating during the winding process.

[0020] Furthermore, such as Figure 3 and Figure 4 As shown, a tension trigger body 14 is provided on the ballast block 15. A sliding groove 17 is formed on the inner surface of the tension trigger body 14. An inner sliding rod 21 is connected to the free end of the wire rope 8. The inner sliding rod 21 is inserted into the sliding groove 17 and extends into the sliding groove 17, with a sliding block 20 fixedly connected to its end. The sliding block 20 is slidably connected within the sliding groove 17. A pressure switch 22 is installed at the top of the sliding groove 17. When the device rises due to tidal forces, the wire rope 8 is pulled. At this time, the inner sliding rod 21 slides within the tension trigger body 14, limiting its movement, and the sliding block 20 also slides within the tension trigger body 14.

[0021] Furthermore, such as Figure 4As shown, two limiting rods 18 are fixedly connected inside the sliding groove 17, and the sliding block 20 is slidably connected to the two limiting rods 18. A spring 19 is sleeved on the limiting rod 18 located between the sliding block 20 and the sliding groove 17. During high tide, the tension triggers the sliding of the main body 14, causing the sliding block 20 to rise and compress the spring 19 until the sliding block 20 contacts the pressure switch 22. Then, the servo motor 11 is activated to release the wire rope 8, causing the device to float to the water surface. The wire rope 8 returns to its normal state, and the compressed spring 19 springs back to the sliding block 20.

[0022] Furthermore, such as Figure 4 As shown, the tension triggering body 14 is equipped with a guide frame. Guide rollers 27 are rotatably mounted on both sides of the top of the guide frame 26. The wire rope 8 is slidably disposed between the two guide rollers 27. Preferably, both guide rollers 27 have annular grooves, and the wire rope 8 is located between these annular grooves. The sliding of the wire rope between the two guide rollers 27 reduces the resistance to sliding of the wire rope 8 and also reduces wear between the wire rope 8 and the tension triggering body 14.

[0023] Furthermore, such as Figure 1 As shown, a collection body 2 is fixedly connected to the top of the floating platform 1, and a guide plate 7 is fixedly connected to one side of the collection body 2. During operation, the guide plate 7 is designed to collect the waste.

[0024] Furthermore, such as Figure 1 As shown, a conveyor belt 5 is installed inside the collection port 3, and a collection frame 6 is installed inside the collection port 3 located behind the conveyor belt 5. During operation, the guide plate 7 and the conveyor belt 5 work together to collect the waste, and then the waste is stored in the collection frame 6, making the operation simple.

[0025] Furthermore, such as Figure 1 As shown, a guardrail 4 is fixedly installed around the top of the collecting body 2, a control terminal 9 is installed on the top of the collecting body 2, and a photovoltaic panel 16 is fixedly connected to the top of the collecting body 2. The control terminal 9 is electrically connected to the photovoltaic panel 16. During operation, the photovoltaic panel 16 can provide some electrical energy to the control terminal 9.

[0026] Working principle: After the servo motor 11 is started, the take-up roller 12 can rotate inside the take-up frame 10. At the same time, the take-up roller 12 can control the take-up and unwinding of the wire rope 8, thereby changing the release length of the wire rope 8 and ensuring that the floating platform 1 always floats on the water surface. The stepper motor 25 can drive the single-thread screw 23 to rotate and drive the limit block 24 to be limited by the guide rail 13, thereby assisting the take-up of the wire rope 8 and effectively solving the problem of the wire rope 8 accumulating during the winding process. When the device rises due to the tide, the steel wire rope 8 will be tightened, pre-pulling the floating platform 1 into the water. At this time, the inner sliding rod 21 slides within the tension trigger body 14, causing the sliding block 20 to slide within the tension trigger body 14. After the sliding block 20 rises, it compresses the spring 19 until the sliding block 20 contacts the pressure switch 22. Then, the servo motor 11 is activated to release the steel wire rope 8, thereby causing the device to float to the water surface. The steel wire rope 8 returns to its normal state, and at the same time, the compressed spring 19 springs back to the sliding block 20. The guide plate 7 is designed to collect garbage. The conveyor belt 5, together with the collection frame 6, can collect garbage. The photovoltaic panel 16 can provide some power to the control terminal 9.

Claims

1. A marine debris collection device, comprising a floating platform (1), characterized in that: The bottom of the floating platform (1) is surrounded by several winding frames (10). A servo motor (11) is installed on one side of the winding frame (10). The output end of the servo motor (11) is fixedly connected to a winding roller (12). A steel wire rope (8) is wound around the outer wall of the winding roller (12). A guide rail (13) is fixedly connected to the bottom of the winding frame (10). A stepper motor (25) is installed on one side of the guide rail (13). A single-threaded screw (23) is fixedly connected to the output end of the stepper motor (25). A limit block (24) is threadedly connected to the outer wall of the single-threaded screw (23). The limit block (24) is slidably connected to the inner wall of the guide rail (13). A through hole is provided on the limit block (24). The free end of the steel wire rope (8) passes through the through hole on the limit block (24) and is connected to a ballast block (15) at the end.

2. The marine debris collection device as described in claim 1, characterized in that: The ballast block (15) is provided with a tension trigger body (14), and the inner surface wall of the tension trigger body (14) is provided with a sliding groove (17). The free end of the wire rope (8) is connected to an inner slide rod (21), the inner slide rod (21) is inserted into the sliding groove (17), the inner slide rod (21) extends into the sliding groove (17) and the end is fixedly connected to a sliding block (20), the sliding block (20) is slidably connected in the sliding groove (17), and a pressure switch (22) is installed on the top of the sliding groove (17).

3. The marine debris collection device as described in claim 2, characterized in that: Two limiting rods (18) are fixedly connected inside the sliding groove (17). The sliding block (20) is slidably connected to the two limiting rods (18). A spring (19) is sleeved on the limiting rod (18) located between the sliding block (20) and the sliding groove (17).

4. The marine debris collection device as described in claim 2, characterized in that: The tension trigger body (14) is provided with a guide frame (26), and guide rollers (27) are rotatably provided on both sides of the top of the guide frame (26). The wire rope (8) is slidably disposed between the two guide rollers (27).

5. A marine debris collection device as described in claim 4, characterized in that: Both guide rollers (27) are provided with annular grooves, and the wire rope (8) is located between the annular grooves of the two guide rollers (27).

6. The marine debris collection device as described in claim 1, characterized in that: A collection body (2) is fixedly connected to the floating platform (1). A collection port (3) is opened on the front side of the collection body (2). Guide plates (7) are symmetrically arranged on both sides of the front of the collection port (3).

7. A marine debris collection device as described in claim 6, characterized in that: The collection port (3) is provided with a conveyor belt (5), and the collection port (3) located behind the conveyor belt (5) is provided with a collection frame (6).

8. A marine debris collection device as described in claim 7, characterized in that: The top of the collecting body (2) is fixedly surrounded by a guardrail (4), a control terminal (9) is installed on the top of the collecting body (2), a photovoltaic panel (16) is fixedly connected to the top of the collecting body (2), and the control terminal (9) is electrically connected to the photovoltaic panel (16).

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