A pollution prevention device for a pollution prevention barrier used in water conservancy projects.

Abstract

This application relates to the field of pollution prevention in water conservancy projects, and in particular to a pollution prevention device for a pollution prevention fence used in water conservancy projects. The device includes two mounting seats on one side of a concrete main body, a scooping plate sliding between the two mounting seats, a collection bin on the concrete main body, and a drive assembly for moving and flipping the scooping plate. The drive assembly includes guide blocks, reciprocating screws, servo motors, and reversing components, as well as positioning balls, convex strips, pressure sensors, and gantry crane structures. This application achieves the technical effect of automatically cleaning floating debris from the water surface at the pollution prevention fence of a water conservancy project, effectively preventing the accumulation of floating debris from affecting the normal use of the fence, and allowing real-time monitoring of the water flow impact force on the fence, facilitating the maintenance and replacement of the fence.

Description

Technical Field

[0001] This application relates to the field of water conservancy anti-fouling fence technology, and in particular to an anti-fouling device for an anti-fouling fence used in water conservancy projects. Background Technology

[0002] With societal development, marine water conservancy projects play a crucial role in safeguarding marine resource development, maritime transportation, and marine ecological protection. Antifouling barriers, as fundamental protective facilities in marine water conservancy projects, have emerged in response to the presence of solid pollutants in marine waters and the inherent vulnerability of marine water conservancy systems. Primarily constructed upstream of critical equipment such as marine power generation and offshore platforms, they effectively intercept floating debris, significantly contributing to the safe operation of marine power plants and offshore platforms. By strategically installing antifouling barriers in marine channels and operational areas, damage to equipment from floating debris can be reduced, equipment failure rates lowered, and the overall operational efficiency of marine water conservancy projects improved, thereby providing a stable energy supply and reliable allocation of marine resources for marine economic development. Simultaneously, underwater intelligent integrated defense systems, targeting important ports, waterways, islands, reefs, and offshore platforms, establish integrated surface and underwater defense systems encompassing detection, alarm, interception, positioning, and capture to effectively defend against underwater attacks and ship collisions, further enhancing the safety and stability of marine water conservancy projects.

[0003] In past marine water conservancy projects, various methods were typically employed to intercept and clear floating debris. A common approach involved constructing dike-like structures in marine channels or operating areas. These structures, made of special marine concrete, had pre-drilled openings for ocean currents, at which barriers were installed to intercept floating debris from upstream. Additionally, personnel were periodically deployed by boat, using tools such as large nets and long-handled rakes, to retrieve and clear debris trapped at the barriers. In some areas, mechanical devices, such as simple marine grab buckets, were also used to grab and clear floating debris from the surface. Furthermore, underwater intelligent integrated defense systems utilized detection and interception devices to initially intercept incoming underwater objects. These methods, to a certain extent, effectively intercepted and cleared floating debris and defended against incoming underwater objects, ensuring the basic operation of marine water conservancy projects.

[0004] However, these existing conventional methods have significant drawbacks. While traditional fencing can intercept floating debris, it cannot automatically clear the trapped debris. As debris accumulates, it increases the impact force of seawater on the fencing, affecting its stability and lifespan, and may even damage it, rendering it ineffective. Manual salvage is labor-intensive, inefficient, and heavily influenced by marine weather and sea conditions, making it difficult to clear floating debris promptly and effectively. Simple marine grab buckets are not flexible enough in grabbing and clearing floating debris, making it difficult to thoroughly clear all debris from the water surface, resulting in poor cleaning results. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a pollution prevention device for a pollution prevention fence used in hydraulic engineering.

[0006] The anti-fouling device for a pollution barrier used in water conservancy projects provided in this application adopts the following technical solution:

[0007] A pollution prevention device for a pollution prevention fence used in water conservancy projects includes two mounting seats disposed on one side of a concrete main body, a scooping plate sliding between the two mounting seats, and a collection chamber disposed on the concrete main body to receive floating debris poured onto the water surface after the scooping plate is flipped. The two mounting seats are respectively disposed on both sides of the fence. The mounting seats are also provided with a drive component for driving the scooping plate to move and flip. In the initial state, the scooping plate is located below the water surface. When it is necessary to clean the pollution, the drive component is controlled to operate, so that the scooping plate keeps the side with the larger area facing upward and moves from below the water surface to the top of the mounting seat. Then it flips over to pour the debris on the scooping plate into the collection chamber, and keeps the side with the smaller area facing upward and moves back below the water surface.

[0008] By adopting the above technical solution, in water conservancy projects, antifouling racks are used to intercept floating debris in upstream river channels to ensure the safe operation of equipment such as power stations, pumping stations, or marine water conservancy facilities. However, as floating debris accumulates, it affects the normal function of the antifouling rack. The two mounting bases of this antifouling device are located on one side of the concrete main body and on both sides of the rack, providing a stable support structure for the movement and flipping of the scooping plate. Initially, the scooping plate is below the water surface. When cleaning is required, the drive assembly is activated. The drive assembly propels the scooping plate, with the larger side facing upwards, from below the water surface to the top of the mounting base. During this process, the scooping plate effectively scoops up floating debris from the water surface. After moving to the top of the mounting base, the scooping plate flips, dumping the collected debris into the collection bin, achieving effective collection of floating debris. Afterwards, the scooping plate, with the smaller side facing upwards, moves back below the water surface, reducing resistance during movement in the water and allowing the scooping plate to quickly return to its initial position, preparing for the next cleaning operation. This cycle ensures timely removal of floating debris from the water surface, improving the problem of debris accumulation affecting the normal function of the anti-fouling barrier and guaranteeing the safe and stable operation of water conservancy equipment.

[0009] Optionally, the drive assembly includes a guide block sliding on the mounting base, a reciprocating screw rotatably connected to the mounting base, a servo motor fixed on the mounting base for driving the reciprocating screw to rotate, and a reversing component disposed on the mounting base for directional control of the flipping of the scoop plate during movement. The guide block is threadedly connected to the reciprocating screw, the scoop plate is rotatably connected between the two guide blocks, and the reversing component is disposed at one end of the scoop plate's rotating shaft that passes through the guide block.

[0010] By adopting the above technical solution, a servo motor drives a reciprocating screw to rotate. Since the guide block is threadedly connected to the reciprocating screw, the guide block slides on the mounting base, thereby moving the scooping plate, which is rotatably connected between the two guide blocks. Initially, the scooping plate is below the water surface. When cleaning is required, the servo motor is controlled to operate, and the scooping plate, with its larger side facing upwards, moves from below the water surface to the top of the mounting base, scooping up floating debris during this process. A reversing component is located at the end of the scooping plate's rotating shaft that passes through the guide blocks, allowing for directional control of the scooping plate's rotation during movement. Once the scooping plate reaches the top of the mounting base, the reversing component activates, causing the scooping plate to rotate and dump debris into the collection bin. Then, the scooping plate, with its smaller side facing upwards, moves back below the water surface to continue the next round of cleaning. The entire process achieves automatic movement and rotation of the scooping plate for cleaning, improving cleaning efficiency and ensuring the normal operation of the anti-fouling grid and the safety of the water conservancy project.

[0011] Optionally, the reversing component includes a first rack fixed to the upper end of the mounting base, a second rack fixed to the lower end of the mounting base, a drive disk coaxially fixed to the end of the scooping plate shaft, an inner ratchet coaxially rotatably connected to the end of the scooping plate shaft, an inner pawl rotating on the drive disk, and a first spring fixed on the drive disk for driving the inner pawl to reset. The inner pawl meshes with the inner ratchet. During movement, the outer teeth of the inner ratchet can mesh with the first rack or the second rack for transmission. Both the first rack and the second rack are located on the side of the inner ratchet away from the fence.

[0012] By adopting the above technical solution, if the floating debris intercepted by the anti-fouling grid is not cleaned up in time, it will affect its interception effect and the safe operation of the equipment. The design of this reversing component can effectively solve this problem. When the scooping plate moves on the mounting base with the guide block, the scooping plate is initially located below the water surface. When the scooping plate slowly moves to the upper end of the mounting base, the outer teeth of the inner ratchet engage with the first rack. Due to the engagement of the inner pawl with the inner ratchet, the drive disc rotates, which in turn causes the scooping plate shaft to rotate, realizing the flipping of the scooping plate and dumping the floating debris intercepted on the scooping plate into the collection bin, effectively cleaning up the floating debris. Afterwards, the scooping plate continues to move, and the inner ratchet disengages from the first rack, so that the scooping plate remains in the flipped state as it moves downward. When the scooping plate moves to the lower end of the mounting base, the outer teeth of the inner ratchet engage with the second rack. Under the action of the first spring driving the inner pawl to reset, the inner pawl and the inner ratchet engage again. Since the first rack and the second rack are located on the same side, the scooping plate does not flip during its downward movement. Throughout the process, the tilting of the scooping plate during movement can be precisely controlled, enabling the scooping plate to automatically clean up floating debris and reset itself, ensuring the normal operation of the anti-fouling grid and improving the efficiency and effectiveness of anti-fouling work in water conservancy projects.

[0013] Optionally, the mounting base has a first mounting groove, the inner ratchet, the first rack, and the second rack are all located in the first mounting groove, the other side of the mounting base has a second mounting groove, the reciprocating screw is rotatably connected in the second mounting groove, the opening of the first mounting groove is fitted with a first sealing plate, and the opening of the second mounting groove is fitted with a flexible corrugated plate for sealing the opening of the second mounting groove.

[0014] By adopting the above technical solution, a first mounting groove and a second mounting groove are opened on the mounting base. The inner ratchet, the first rack and the second rack are placed in the first mounting groove, and the reciprocating screw is rotated and connected in the second mounting groove. The groove openings are then sealed with a first sealing plate and a flexible corrugated plate, which can effectively protect these components from the influence of external factors (such as water flow impact, collision with debris, etc.), improve the stability and reliability of the device, and extend its service life.

[0015] Optionally, the rotating shaft sidewall of the scooping plate is provided with a third mounting groove, a second spring disposed in the third mounting groove, and a positioning ball sliding in the third mounting groove. The inner wall of the shaft hole of the guide block is provided with a plurality of positioning grooves for embedding the positioning ball, and the included angle between two adjacent positioning grooves is ninety degrees.

[0016] By adopting the above technical solution, when the scooping plate rotates, the positioning ball in the third mounting groove on the side wall of the rotating shaft moves between the positioning grooves on the inner wall of the guide block shaft hole under the action of the second spring. Since the included angle between two adjacent positioning grooves is ninety degrees, the positioning ball will be embedded in the corresponding positioning groove every ninety degrees the scooping plate rotates, thus positioning the scooping plate and ensuring that the scooping plate stays stably at a specific angle. This ensures the accurate posture of the scooping plate during the cleaning and dumping of debris, improving cleaning efficiency and stability.

[0017] Optionally, the side of the scooping plate that contacts the floating object on the water surface is fixed with evenly spaced protrusions, the side of the protrusions facing away from the scooping plate is serrated, and the height of the protrusions increases progressively along their length.

[0018] By adopting the above technical solution, during the cleaning process, the evenly spaced protrusions on the side of the scooping plate that contact the floating objects on the water surface can effectively intercept the floating objects, and the serrated side can increase the friction with the floating objects, making it easier for the floating objects to adhere to the protrusions. As the scooping plate moves, since the height of the protrusions increases along its length, it is easier to dump garbage during the process of dumping debris, further improving the cleaning efficiency and effect of the scooping plate.

[0019] Optionally, a pressure sensor for detecting the impact force of water flow on the fence is also installed on the cement body. The pressure sensor is located on the side of the fence facing away from the mounting base. The pressure sensor is electrically connected to the controller in the external control room. The servo motor is also electrically connected to the controller in the external control room.

[0020] By adopting the above technical solution, the pressure sensor can detect the water flow impact force on the fence in real time and transmit the detected signal to the controller in the external control room. When the water flow impact force reaches a certain threshold, the controller can control the servo motor to operate based on the received signal, thereby driving the drive component to work and enabling the scooping plate to clean floating debris from the water surface. This realizes that the anti-fouling device automatically cleans debris based on the actual impact on the fence, improving anti-fouling efficiency and intelligence, and effectively ensuring the normal use of the fence and the safe operation of water conservancy engineering equipment.

[0021] Optionally, grooves for embedding fences are provided on both sides of the cement body. The width of the grooves is greater than the thickness of the fence. A gantry crane is installed on the cement body, and lifting rings are fixed on the side walls of the fence. The electric hoist of the gantry crane is electrically connected to the controller in the external control room.

[0022] By adopting the above technical solution, grooves wider than the thickness of the fence are opened on both sides of the cement body to embed the fence, which facilitates the lateral displacement of the fence and makes it easier for the pressure sensor to identify it. With the help of the gantry crane installed on the cement body, when it is necessary to clean or replace the fence or to release floodwater, the controller in the external control room can control the operation of the electric hoist of the gantry crane. The fence is then lifted smoothly from the groove with the help of the lifting rings fixed on the side wall of the fence, realizing convenient disassembly and installation of the fence. This improves the convenience and efficiency of the maintenance of the anti-fouling fence and anti-pollution device for water conservancy projects.

[0023] Optionally, a support base is fixed on the cement body, the collection bin is rotatably connected to the support base, the fence is located between the mounting base and the collection bin, and a guide plate is fixed on the side of the collection bin near the mounting base.

[0024] By adopting the above technical solution, a support base is fixed on the cement body and the collection bin is rotatably connected to the support base, which allows for flexible adjustment of the angle of the collection bin to better receive floating objects poured out by the scooping plate; the fence is set between the mounting base and the collection bin, which rationally plans the layout of the device; a guide plate is fixed on the side of the collection bin near the mounting base, which can guide the floating objects to fall smoothly into the collection bin, making the cleaning work more efficient and ensuring the normal operation of the anti-pollution fence in the water conservancy project.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By employing the coordinated operation of the mounting base, scooping plate, collection bin, and drive components, the automatic cleaning of floating debris on the water surface is achieved, effectively reducing the accumulation of floating debris at the fence, significantly reducing the water flow impact force on the fence, and greatly improving the stability and service life of the fence.

[0027] 2. The reversing component in the drive assembly can precisely control the tilting of the scooping plate during movement, efficiently realizing the automatic dumping of debris and resetting of the scooping plate, greatly improving the cleaning efficiency;

[0028] 3. By using pressure sensors to detect the water flow impact force on the fence in real time, and using a controller to intelligently control the operation of the servo motor, the cleaning process is automated, greatly reducing manual intervention. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this application.

[0030] Figure 2 This is a schematic diagram of the internal cavity structure of the mounting base in this application.

[0031] Figure 3 This is a sectional view of the mounting base in this application, mainly used to show the commutation components.

[0032] Figure 4This is a partial structural schematic diagram of the commutation component in this application.

[0033] Figure 5 This is a schematic diagram of the structure of the inner ratchet in this application.

[0034] Figure 6 This is a schematic diagram of the structure of the guide block in this application.

[0035] Figure 7 This is a cross-sectional view of the guide block in this application, mainly used to show the positioning ball.

[0036] Figure 8 This is a schematic diagram of the fence structure in this application, mainly used to illustrate the collection bin.

[0037] Figure 9 This is a structural diagram of the cement body in this application, mainly used to illustrate the pressure sensor.

[0038] Reference numerals: 1. Cement body; 2. Mounting base; 3. Scoop plate; 4. Collection bin; 5. Fence; 6. Drive assembly; 7. Guide block; 8. Reciprocating screw; 9. Servo motor; 10. Reversing component; 11. First rack; 12. Second rack; 13. Drive disc; 14. Inner ratchet; 15. Inner pawl; 16. First spring; 17. First mounting groove; 18. Second mounting groove; 19. First sealing plate; 20. Flexible corrugated plate; 21. Third mounting groove; 22. Second spring; 23. Positioning ball; 24. Positioning groove; 25. Protrusion; 26. Pressure sensor; 27. Embedded groove; 28. Gantry crane; 29. ​​Lifting ring; 30. Support base; 31. Guide plate. Detailed Implementation

[0039] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0040] This application discloses a pollution prevention device for a pollution prevention fence used in water conservancy projects.

[0041] Reference Figure 1The application scenarios of this embodiment are not limited to water conservancy projects such as rivers and ocean shorelines. The anti-fouling device for anti-fouling fences for water conservancy projects provided in this application embodiment includes two mounting seats 2, a scooping plate 3, a collection bin 4, and a drive assembly 6. The two mounting seats 2 are located on one side of the cement body 1 and on both sides of the fence 5. In this embodiment, the mounting seats 2 can be made of corrosion-resistant plastic material. The scooping plate 3 slides between the two mounting seats 2. The collection bin 4 is set on the cement body 1 to receive floating debris poured out of the water surface after the scooping plate 3 is flipped. The drive assembly 6 is set on the mounting seats 2 to drive the scooping plate 3 to move and flip, thereby achieving the effect of automatically cleaning floating debris at the fence 5, reducing manual labor intensity, and improving cleaning efficiency. This is because by controlling the movement and flipping of the scooping plate 3 through the drive assembly 6, floating debris on the water surface can be scooped out and poured into the collection bin 4 in a regular manner, avoiding the accumulation of floating debris.

[0042] Reference Figure 2 and Figure 3 Specifically, the drive assembly 6 includes a guide block 7, a reciprocating screw 8, a servo motor 9, and a commutation component 10.

[0043] Reference Figure 2 and Figure 3 In this embodiment, the guide block 7 slides on the mounting base 2 and is threadedly connected to the reciprocating screw 8. When the reciprocating screw 8 rotates, the guide block 7 moves linearly along the mounting base 2 under the action of the thread. The guide block 7 is usually made of high-strength metal material, such as stainless steel, to ensure that it will not be damaged by force during long-term use. It can also be made of alloy material with special surface treatment to enhance its wear resistance. In this embodiment, a hard plastic with strong corrosion resistance is preferred. The connection between the guide block 7 and the reciprocating screw 8 allows the guide block 7 to make precise linear reciprocating motion on the mounting base 2 as the reciprocating screw 8 rotates, ensuring that the scooping plate 3 can move accurately between the underwater surface and the top of the mounting base 2.

[0044] Reference Figure 2 and Figure 3 The reciprocating screw 8 is rotatably connected to the mounting base 2. The reciprocating screw 8 is generally made of high-quality carbon steel, precision machined and heat-treated to ensure its accuracy and strength. In this embodiment, due to the humid environment, a corrosion-resistant plastic material, such as polytetrafluoroethylene (PTFE), can also be used. The reciprocating screw 8 is connected to the output shaft of the servo motor 9, and the rotation of the servo motor 9 drives the reciprocating screw 8 to rotate.

[0045] Reference Figure 2 and Figure 3The servo motor 9 is fixed on the mounting base 2. It has precise control performance and can adjust the speed and direction of rotation as needed. When it receives a signal from the controller, the servo motor 9 starts to run, driving the reciprocating screw 8 to rotate. The servo motor 9 can also be a stepper motor. The servo motor 9 is fixed to the mounting base 2 by bolts or other means, and its output shaft is connected to the reciprocating screw 8 through a coupling. In this embodiment, it is known that existing dam openings usually have control rooms built at relatively high altitudes, or other locations such as pumping stations and power plants, where personnel can monitor the dam opening in real time. Typically, the dam opening and the control room can be controlled wirelessly or via a wired connection. The controller in the control room is usually a PLC device; in this embodiment, both methods are acceptable.

[0046] Reference Figure 4 and Figure 5 The reversing component 10 is located at one end of the shaft of the scooping plate 3 that passes through the guide block 7, and is used to control the scooping plate 3 to flip during movement. The reversing component 10 includes a first rack 11, a second rack 12, a drive disc 13, an inner ratchet 14, an inner pawl 15, and a first spring 16.

[0047] Reference Figure 1 , Figure 3 and Figure 4 In this embodiment, to improve the stability of the operation of each component, a first mounting groove 17 and a second mounting groove 18 are provided on the mounting base 2. The first mounting groove 17 is used to install the inner ratchet 14, the first rack 11, and the second rack 12, and a first sealing plate 19 is installed in its opening. The first sealing plate 19 can prevent external debris from entering the first mounting groove 17 and protect the inner ratchet 14, the first rack 11, and the second rack 12 from the influence of the external environment. The first sealing plate 19 is generally made of steel plate and is fixed to the mounting base 2 by bolts. An alternative feature is that a plastic sealing plate can be used to reduce weight.

[0048] Reference Figure 3 The second mounting slot 18 is used to rotatably connect the reciprocating screw 8. A flexible corrugated plate 20, or a filter screen, is installed at the opening of the second mounting slot 18 to seal it. When the guide block 7 moves on the mounting base 2, the flexible corrugated plate 20 deforms along with the guide block 7, always maintaining the seal on the opening of the second mounting slot 18. The flexible corrugated plate 20 prevents debris from entering the second mounting slot 18 and affecting the normal operation of the reciprocating screw 8. Its material is generally rubber, but a silicone flexible corrugated plate 20 can also be used to improve its aging resistance.

[0049] Reference Figure 3The first rack 11 is fixed to the upper end of the first mounting groove 17, and the second rack 12 is fixed to the lower end of the second mounting groove 18. When the guide block 7 drives the scooping plate 3 to move to the upper or lower end of the mounting base 2, the outer teeth of the inner ratchet 14 will mesh with the first rack 11 or the second rack 12 respectively. They are generally made of steel. In this embodiment, to improve service life and reduce corrosion, engineering plastics, such as polytetrafluoroethylene (PTFE) and other corrosion-resistant, high-strength materials, can be selected. The first rack 11 and the second rack 12 are both located on the side of the inner ratchet 14 away from the fence 5, and are used to mesh with the outer teeth of the inner ratchet 14. In this embodiment, it is preferable to set the first rack 11 and the second rack 12 on the same side of the inner ratchet 14.

[0050] Reference Figure 4 and Figure 5 The drive disc 13 is coaxially fixed to the end of the rotating shaft of the scooping plate 3 and rotates together with the rotating shaft of the scooping plate 3. When the inner ratchet 14 drives the drive disc 13 to rotate through the inner pawl 15, the drive disc 13 will rotate the rotating shaft of the scooping plate 3, thereby realizing the flipping of the scooping plate 3. Its shape is usually disc-shaped, and in this embodiment, it is preferably made of engineering plastic.

[0051] Reference Figure 1 , Figure 4 and Figure 5 The inner ratchet 14 is coaxially rotatably connected to the end of the shaft of the scooping plate 3. When the guide block 7 drives the inner ratchet 14 to contact the first rack 11 or the second rack 12, the inner ratchet 14 will rotate in one direction under the action of the rack. In this embodiment, the scooping plate 3 does not rotate when the inner ratchet 14 moves downward as a whole, and the scooping plate 3 only rotates when the inner ratchet 14 moves upward as a whole and meshes with the first rack 11 or the second rack 12.

[0052] Reference Figure 5 The inner pawl 15 rotates on the drive disc 13 and engages with the inner ratchet 14. A first spring 16 drives the inner pawl 15 to engage in the tooth groove of the inner ratchet 14. The first spring 16 is generally made of stainless steel wire, which has good elasticity and corrosion resistance. An alternative feature could be a rubber spring.

[0053] Reference Figure 1 and Figure 5 In this embodiment, when the guide block 7 drives the scooping plate 3 to move downwards, the inner ratchet 14 moves accordingly. When the inner ratchet 14 meshes with the first rack 11 or the second rack 12, it drives the inner ratchet 14 to rotate. Through the meshing relationship between the inner pawl 15 and the inner ratchet 14, the drive disk 13 is driven to rotate, thereby realizing the flipping of the scooping plate 3. This allows the scooping plate 3 to dump debris into the collection bin 4 when it rises to the top of the mounting base 2, and to return to a suitable scooping state when it descends below the water surface.

[0054] Reference Figure 2 , Figure 6 and Figure 7 Specifically, the scooping plate 3 is rotatably connected between two guide blocks 7. A third mounting groove 21 is provided on the side wall of the rotating shaft of the scooping plate 3, inside which a second spring 22 and a sliding positioning ball 23 are installed. Several positioning grooves 24 for embedding the positioning balls 23 are provided on the inner wall of the shaft hole of the guide block 7. The included angle between two adjacent positioning grooves 24 is ninety degrees. This ensures that the scooping plate 3 is accurately positioned at a specific angle during the flipping process, ensuring the stability of the scooping plate 3 when scooping and dumping debris.

[0055] Reference Figure 6 and Figure 7 The third mounting groove 21 is a recess machined into the side wall of the rotating shaft of the scooping plate 3, used to install the second spring 22 and the positioning ball 23. Its dimensions are designed according to the size of the positioning ball 23 and the second spring 22. The second spring 22 is disposed within the third mounting groove 21 to provide elastic force, allowing the positioning ball 23 to be tightly embedded in the positioning groove 24. When the scooping plate 3 rotates, the positioning ball 23 slides within the third mounting groove 21 under the action of the second spring 22. The second spring 22 can be made of silicone, which has better corrosion resistance and cushioning performance.

[0056] Reference Figure 6 and Figure 7 The positioning ball 23 has a smooth surface. When the scooping plate 3 rotates to a specific angle, the positioning ball 23 will be embedded in the positioning groove 24 on the inner wall of the guide block 7 shaft hole under the action of the second spring 22. The positioning ball 23 can be made of ceramic material to improve its hardness and wear resistance. The design of the positioning ball 23 enables the scooping plate 3 to maintain a stable angle during movement and flipping, avoiding shaking when scooping and dumping debris.

[0057] Reference Figure 2 In this embodiment, protruding strips 25 are evenly fixed to the side of the scooping plate 3 that contacts floating objects on the water surface. When the scooping plate 3 moves underwater, the side of the protruding strips 25 facing away from the scooping plate 3 is serrated, which can better grasp the floating objects and prevent them from slipping. The protruding strips 25 are arranged with increasing height along their length, so that the floating objects can be gradually gathered together as the scooping plate 3 moves. The material of the protruding strips 25 is generally plastic, which has a certain degree of flexibility. A replaceable feature is that the protruding strips 25 can be made of rubber to enhance their friction. The protruding strips 25 are fixed to the scooping plate 3 by ultrasonic welding or bonding.

[0058] Reference Figure 8A support base 30 is fixed to the cement body 1, and the collection bin 4 is rotatably connected to the support base 30. A fence 5 is located between the mounting base 2 and the collection bin 4. A guide plate 31 is fixed to the side of the collection bin 4 closest to the mounting base 2. The support base 30 provides stable support for the collection bin 4 and is generally made of concrete or steel. The collection bin 4 can rotate around the support base 30. When the scooping plate 3 tilts and dumps debris, the debris slides into the collection bin 4 along the guide plate 31. The function of the guide plate 31 is to guide the debris dumped by the scooping plate 3 smoothly into the collection bin 4.

[0059] Reference Figure 8 and Figure 9 Specifically, a pressure sensor 26 is installed on the cement body 1, located on the side of the fence 5 facing away from the mounting base 2, to detect the impact force of water flow on the fence 5. When water flow impacts the fence 5, the pressure sensor 26 detects the magnitude of the impact force in real time and converts the pressure signal into an electrical signal. There are many types of pressure sensors 26, such as strain gauge pressure sensors 26. In this embodiment, a piezoelectric pressure sensor 26 can also be used, which has higher sensitivity. The pressure sensor 26 is electrically connected to the controller in the external control room, and the controller is in turn electrically connected to the servo motor 9. When the pressure sensor 26 detects that the impact force of water flow on the fence 5 exceeds the set value, it indicates that there may be a lot of floating debris accumulating at the fence 5. The controller will then control the servo motor 9 to operate, starting the cleaning operation of the scooping plate 3.

[0060] Reference Figure 8 and Figure 9 On both sides of the concrete main body 1, there are grooves 27 for embedding the fence 5. The width of the grooves 27 is greater than the thickness of the fence 5, so that the fence 5 has a certain amount of room to move within the grooves 27 to adapt to the impact of water flow. When water flow impacts the fence 5, the fence 5 can sway slightly within the grooves 27, reducing the impact force on the fence 5. A gantry crane 28 is installed on the concrete main body 1, and lifting rings 29 are fixed to the side walls of the fence 5. The electric hoist of the gantry crane 28 is electrically connected to the controller in the external control room. When it is necessary to repair or replace the fence 5, the controller controls the electric hoist of the gantry crane 28 to lift the fence 5.

[0061] The implementation principle of this embodiment is as follows: Initially, the scooping plate 3 is located below the water surface. When the pressure sensor 26 detects a large impact force from the water flow on the fence 5, indicating that there may be a lot of floating debris accumulating at the fence 5, the controller controls the servo motor 9 to operate, driving the reciprocating screw 8 to rotate. This causes the guide block 7 to move the scooping plate 3 from below the water surface to the top of the mounting base 2 with the larger side facing upwards. During the movement, when the inner ratchet 14 engages with the first rack 11, the scooping plate 3 flips over, dumping the debris on the scooping plate 3 into the collection bin 4. Then, the scooping plate 3 moves back below the water surface with the smaller side facing upwards, completing one cleaning cycle. The entire process achieves automatic cleaning of floating debris at the fence 5, improving cleaning efficiency, reducing manual labor intensity, and, through real-time monitoring by the pressure sensor 26, enabling timely initiation of the cleaning operation, ensuring the normal use of the fence 5.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pollution prevention device for a pollution prevention fence used in water conservancy projects, characterized in that: It includes two mounting seats (2) set on one side of the cement body (1), a scooping plate (3) sliding between the two mounting seats (2), and a collection chamber (4) set on the cement body (1) to receive the floating objects poured out of the water surface after the scooping plate (3) is flipped. The two mounting seats (2) are respectively set on both sides of the fence (5). The mounting seats (2) are also equipped with a drive component (6) for driving the scooping plate (3) to move and flip. In the initial state, the scooping plate (3) is located below the water surface. When it is necessary to clean the debris, the drive component (6) is controlled to operate, so that the scooping plate (3) keeps the side with the larger area facing up and moves from below the water surface to the top of the mounting seat (2). Then it flips and pours the debris on the scooping plate (3) into the collection chamber (4), and keeps the side with the smaller area facing up and moves to below the water surface. The drive assembly (6) includes a guide block (7) sliding on the mounting base (2), a reciprocating screw (8) rotatably connected to the mounting base (2), a servo motor (9) fixed on the mounting base (2) for driving the reciprocating screw (8) to rotate, and a reversing component (10) set on the mounting base (2) for directional control of the flipping of the scooping plate (3) during movement. The guide block (7) is threadedly connected to the reciprocating screw (8), and the scooping plate (3) is rotatably connected between the two guide blocks (7). The reversing component (10) is set at one end of the scooping plate (3) shaft that passes through the guide block (7). The reversing component (10) includes a first rack (11) fixed to the upper end of the mounting base (2), a second rack (12) fixed to the lower end of the mounting base (2), a drive disk (13) coaxially fixed to the end of the shaft of the scooping plate (3), an inner ratchet (14) coaxially rotatably connected to the end of the shaft of the scooping plate (3), an inner pawl (15) rotating on the drive disk (13), and a first spring (16) fixed on the drive disk (13) for driving the inner pawl (15) to reset. The inner pawl (15) meshes with the inner ratchet (14). During the movement, the outer teeth of the inner ratchet (14) can mesh with the first rack (11) or the second rack (12) for transmission. The first rack (11) and the second rack (12) are both located on the side of the inner ratchet (14) away from the fence (5). The rotating side wall of the scooping plate (3) is provided with a third mounting groove (21), a second spring (22) set in the third mounting groove (21), and a positioning ball (23) sliding in the third mounting groove (21). The inner wall of the shaft hole of the guide block (7) is provided with a number of positioning grooves (24) for embedding the positioning ball (23), and the included angle between two adjacent positioning grooves (24) is ninety degrees.

2. The anti-fouling device for a pollution barrier in water conservancy projects according to claim 1, characterized in that: The mounting base (2) is provided with a first mounting groove (17), the inner ratchet (14), the first rack (11) and the second rack (12) are all located in the first mounting groove (17), the other side of the mounting base (2) is provided with a second mounting groove (18), the reciprocating screw (8) is rotatably connected in the second mounting groove (18), the opening of the first mounting groove (17) is provided with a first sealing plate (19), and the groove of the second mounting groove (18) is provided with a flexible corrugated plate (20) for sealing the opening of the second mounting groove (18).

3. The anti-fouling device for a pollution barrier in water conservancy projects according to claim 1, characterized in that: The scooping plate (3) has serrated protrusions (25) evenly spaced on the side that contacts the floating object on the water surface. The protrusions (25) are serrated on the side facing away from the scooping plate (3), and the height of the protrusions (25) increases gradually along their length.

4. The anti-fouling device for a pollution barrier in water conservancy projects according to claim 1, characterized in that: A pressure sensor (26) for detecting the impact force of water flow on the fence (5) is also installed on the cement body (1). The pressure sensor (26) is located on the side of the fence (5) facing away from the mounting base (2). The pressure sensor (26) is electrically connected to the controller in the external control room. The servo motor (9) is electrically connected to the controller in the external control room.

5. The anti-fouling device for a pollution barrier in water conservancy projects according to claim 4, characterized in that: The cement body (1) has grooves (27) on both sides for embedding fences (5). The width of the grooves (27) is greater than the thickness of the fences (5). A gantry crane (28) is installed on the cement body (1). A lifting ring (29) is fixed on the side wall of the fences (5). The electric hoist of the gantry crane (28) is electrically connected to the controller in the external control room.

6. The anti-fouling device for a pollution barrier in water conservancy projects according to claim 5, characterized in that: A support base (30) is fixed on the cement body (1), and the collection bin (4) is rotatably connected to the support base (30). The fence (5) is located between the mounting base (2) and the collection bin (4). A guide plate (31) is fixed on the side of the collection bin (4) near the mounting base (2).

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