Water purifying device for water conservancy gate and water purifying method

Abstract

The application discloses a water purification device and method for a water conservancy project gate. The water purification device for the water conservancy project gate comprises a gate frame, a pair of transmission lead screws are installed on the inner walls of the two sides of the gate frame, a transmission structure is installed at one end of each of the two transmission lead screws, the two transmission lead screws are connected with a bearing plate through threads, the two transmission lead screws are symmetrically located on the two sides of the bearing plate, an installation plate is fixedly connected to the end surface of the bearing plate, the installation plate protrudes from the gate frame, shaft seats are fixedly connected to the upper surfaces of the two sides of the installation plate, a rotating shaft is arranged on the two shaft seats, a filter frame is fixedly connected to the curved surface of the rotating shaft, gears are fixedly connected to the two ends of the rotating shaft, a pair of racks are fixedly connected to the two sides of the top of the gate frame, and the gears are engaged with the racks. The application further discloses a water purification method for the water conservancy project gate. The water purification device for the water conservancy project gate is used for cleaning water bodies, and the cleaned garbage is poured into a garbage collection frame, so that underwater garbage which is difficult to clean by manpower can be conveniently cleaned.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy engineering technology, and relates to a water purification device for a gate in a water conservancy project, as well as a water purification method. Background Technology

[0002] Hydraulic engineering gates are control facilities used to open and close water discharge channels. They are an important part of hydraulic engineering structures and can be used to intercept water flow, control water level, regulate flow, and discharge silt and floating debris. However, when water flows through hydraulic engineering gates, it carries floating garbage. Since the gate valves are usually opened from bottom to top, the more water flows through, the more garbage remains on the water surface and accumulates at the gate. This garbage accumulation provides a breeding ground for pathogens such as bacteria, viruses, and parasites, which can easily cause water pollution.

[0003] To avoid water pollution, workers often use nets to scoop up trash and transfer it to purify the water. However, this process is not only time-consuming and laborious, but also inconvenient for cleaning parts that are difficult for people to scoop up with a net. Summary of the Invention

[0004] The purpose of this invention is to provide a water purification device for sluice gates in water conservancy projects, which solves the problems of time-consuming and labor-intensive manual garbage removal in existing technologies, and the difficulty of manual removal in some areas. It also provides a water purification method for sluice gates in water conservancy projects, which solves the problems of time-consuming and labor-intensive manual garbage removal in existing technologies, and the difficulty of manual removal in some areas.

[0005] The technical solution adopted by the water purification device for the gate of the water conservancy project of the present invention is as follows: The water purification device for the gate of the water conservancy project includes a gate frame, a pair of transmission screws are installed on the inner walls of both sides of the gate frame, a transmission structure is installed at one end of each of the two transmission screws, the two transmission screws are connected to a bearing plate by threads, the two transmission screws are symmetrically located on both sides of the bearing plate, an mounting plate is fixedly connected to the end face of the bearing plate, the mounting plate protrudes from the gate frame, a shaft seat is fixedly connected to the upper surface of both sides of the mounting plate, a rotating shaft is passed through the two shaft seats, a filter frame is fixedly connected to the curved surface of the rotating shaft, gears are fixedly connected to both ends of the rotating shaft, a pair of racks are fixedly connected to the top two sides of the gate frame, and the gears mesh with the racks.

[0006] The invention is further characterized by: The transmission structure includes a cover body, which is fixed to the top of the gate frame. A worm gear is installed through the cover body, and a drive motor is connected to one end of the worm gear. The drive motor is fixed to the gate frame. Two worm wheels mesh on the worm gear. Lifting grooves are opened on the inner walls of both sides of the gate frame. Two drive screws are installed in the two lifting grooves respectively. The two drive screws pass through the top wall of the gate frame and are fixed to the end faces of the two worm wheels respectively. The two sides of the bearing plate are threadedly connected to the drive screws through fixed lifting blocks. The width of the lifting blocks matches the width of the lifting grooves.

[0007] Two racks are fixed to the gate frame at one end via connecting rods. Both connecting rods are perpendicular to the gate frame. A pair of parallel mounting rods are fixed to the middle of the gate frame. The mounting rods are fixed to the two outer side walls of the gate frame respectively. The other ends of the pair of racks are fixed to the inner sides of the two mounting rods respectively.

[0008] A first guide plate is fixed to the end face of the mounting plate away from the bearing plate. The surface of the first guide plate away from the mounting plate is an inclined surface A. The inclined surface A is inclined upward along the direction away from the mounting plate. A second guide plate is fixed to the bottom surface of the mounting plate. The surface of the second guide plate away from the gate frame is an inclined surface B. The inclined surface B is inclined in the same direction as the inclined surface A. The top edge of the inclined surface B is flush with the edge of the mounting plate near the first guide plate.

[0009] A support plate is fixed to the top surface of the bearing plate, the mounting plate, and the first guide plate. The surface of the support plate near the first guide plate is an inclined surface C. The inclined surface C slopes downward along the direction from the bearing plate to the first guide plate. The bottom edge of the inclined surface C is flush with the edge of the first guide plate away from the mounting plate.

[0010] The ends of the two mounting rods are fixed to a base plate, and a detachable waste collection frame is mounted on the base plate. The distance between the edge of the waste collection frame near the gate frame and the gate frame is equal to the distance between the edge of the first guide plate away from the gate frame and the gate frame. The bottom surface of the waste collection frame and the base plate are both provided with corresponding through holes.

[0011] The base plate is connected to the waste collection box by a slide, which is parallel to the rotating shaft.

[0012] A bearing flange is fixed to the top of the filter frame away from the rotating shaft. A retrieval plate is connected to the top surface of the bearing flange. The end face of the retrieval plate near the rotating shaft is a slope D, which slopes downward in the direction close to the rotating shaft.

[0013] The bottom of each of the two mounting rods is fixed with a reinforcing rib, which is then fixed to the gate frame.

[0014] The technical solution adopted in the water purification method for hydraulic engineering gates of the present invention is as follows: using the above-mentioned water purification device for hydraulic engineering gates, the specific steps are as follows: Step 1: Start the drive motor of the water purification device of the gate of the water conservancy project, so that the drive motor rotates in the forward direction. The filter frame rises from the bottom of the gate frame to the water surface to collect garbage in the water. After the filter frame rises to the water surface, pour the collected garbage into the garbage collection box until there is no garbage in the filter frame. Step 2: Start the drive motor of the water purification device of the gate of the water conservancy project, so that the drive motor reverses and the filter frame descends from the water surface to the water surface. During the descent, the second guide plate will push away the garbage located below the filter frame until the filter frame descends to the bottom of the gate frame. Step 3: Repeat Step 1 and Step 2. When the garbage in the garbage collection box is higher than the box wall, remove the garbage collection box from the base plate, clean the garbage in the garbage collection box, and put the garbage collection box back on the base plate after cleaning. Step 4: Repeat Step 3 until there is no debris in the filter frame after the water purification device of the water conservancy project gate has been used for two consecutive retrievals.

[0015] The beneficial effects of this invention are: Compared with the prior art, the water purification device for the gate of the water conservancy project of the present invention can automatically retrieve debris near the gate and dump the retrieved debris, which can conveniently clean up underwater garbage that is difficult to clean by manpower. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the water purification device for a hydraulic engineering gate of the present invention when the supporting plate is at the lower end; Figure 2 This is a bottom view of the water purification device for a hydraulic engineering gate according to the present invention when the bearing plate is at the lower end. Figure 3 This is a front view schematic diagram of the water purification device for water conservancy engineering gates of the present invention, excluding the cover. Figure 4 This is a front view schematic diagram of the filter frame of the water purification device for the gate of the water conservancy project of the present invention in a tilted state; Figure 5 This is a front view schematic diagram of the filter frame of the water purification device for the gate of the water conservancy project of the present invention when it is in a further tilted state. Figure 6 This is a schematic diagram of the filter frame of the water purification device for water conservancy engineering gates of the present invention. Figure 7 This is an exploded schematic diagram of the retrieval block of the water purification device for the gate of the water conservancy project according to the present invention.

[0017] In the diagram: 1. Gate frame; 2. First motor; 3. Valve body; 4. First screw; 5. Cover; 6. Drive motor; 7. Worm gear; 8. Worm; 9. Drive screw; 10. Lifting block; 11. Bearing plate; 12. Filter frame; 13. Rotating shaft; 14. Shaft seat; 15. Support plate; 16. Gear; 17. Rack; 18. Connecting rod; 19. Mounting plate; 20. Waste collection box; 21. Lifting groove; 22. Handle; 23. Second guide plate; 24. Bearing flange; 25. First guide plate; 26. Retrieval plate; 27. Spring; 28. Telescopic rod; 29. ​​Locking block; 30. Reinforcing rib; 31. Inclined surface A; 32. Inclined surface B; 33. Inclined surface C; 34. Inclined surface D; 35. Mounting rod; 36. Base plate; 37. Transmission structure; 38. Guide groove; 39. Guide block; 41. Connecting groove. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] The water purification device for the gate of the hydraulic engineering of the present invention, such as Figure 1 As shown, the gate includes a gate frame 1. A pair of transmission screws 9 are installed on the inner walls of both sides of the gate frame 1. A transmission structure 37 is installed at one end of each of the two transmission screws 9. The two transmission screws 9 are connected to a bearing plate 11 by threads. The two transmission screws 9 are symmetrically located on both sides of the bearing plate 11. A mounting plate 19 is fixed to the end face of the bearing plate 11. The mounting plate 19 protrudes from the gate frame 1. A bearing seat 14 is fixed to the upper surface of both sides of the mounting plate 19. A rotating shaft 13 is passed through the two bearing seats 14. A filter frame 12 is fixed to the curved surface of the rotating shaft 13. Gears 16 are fixed to both ends of the rotating shaft 13. A pair of racks 17 are fixed to the top two sides of the gate frame 1. The gears 16 mesh with the racks 17.

[0020] like Figure 3 As shown, the transmission structure 37 includes a cover 5, which is fixed to the top of the gate frame 1. A worm gear 8 is inserted through the cover 5. One end of the worm gear 8 is connected to a transmission motor 6, which is fixed to the gate frame 1. Two worm wheels 7 are meshed on the worm gear 8. Lifting grooves 21 are opened on the inner walls of both sides of the gate frame 1. Two transmission screws 9 are respectively installed in the two lifting grooves 21. The two transmission screws 9 pass through the top wall of the gate frame 1 and are respectively fixed to the end faces of the two worm wheels 7. The two sides of the bearing plate 11 are threadedly connected to the transmission screws 9 through lifting blocks 10 fixed to them. The width of the lifting blocks 10 matches the groove width of the lifting groove 21.

[0021] like Figure 4 As shown, one end of each of the two racks 17 is fixed to the gate frame 1 via a connecting rod 18. Both connecting rods 18 are perpendicular to the gate frame 1. A pair of parallel mounting rods 35 are fixed to the middle of the gate frame 1. The mounting rods 35 are respectively fixed to the two outer side walls of the gate frame 1. The other end of each pair of racks 17 is respectively fixed to the inner side of the two mounting rods 35.

[0022] like Figure 2 As shown, a first guide plate 25 is fixed to the end face of the mounting plate 19 away from the bearing plate 11. The surface of the first guide plate 25 away from the mounting plate 19 is an inclined surface A31. The inclined surface A31 is inclined upward along the direction of the first guide plate 25 away from the mounting plate 19. A second guide plate 23 is fixed to the bottom surface of the mounting plate 19. The surface of the second guide plate 23 away from the gate frame 1 is an inclined surface B32. The inclined direction of the inclined surface B32 is the same as that of the inclined surface A31. The top edge of the inclined surface B32 is flush with the edge of the mounting plate 19 near the first guide plate 25.

[0023] The top surfaces of the bearing plate 11, the mounting plate 19, and the first guide plate 25 are all fixed to a support plate 15. The surface of the support plate 15 near the first guide plate 25 is an inclined surface C33. The inclined surface C33 slopes downward along the direction from the bearing plate 11 to the first guide plate 25. The bottom edge of the inclined surface C33 is flush with the edge of the first guide plate 25 away from the mounting plate 19.

[0024] The ends of the two mounting rods 35 are fixed to a base plate 36. A detachable garbage collection frame 20 is mounted on the base plate 36. The distance between the side of the garbage collection frame 20 near the gate frame 1 and the gate frame 1 is equal to the distance between the side of the first guide plate 25 away from the gate frame 1 and the gate frame 1. The bottom surface of the garbage collection frame 20 and the base plate 36 are both provided with corresponding through holes.

[0025] like Figure 5 As shown, the base plate 36 is connected to the waste collection box 20 by a slide groove, which is parallel to the rotating shaft 13.

[0026] like Figure 6 As shown, a bearing flange 24 is fixed to the top of the end face of the filter frame 12 away from the rotating shaft 13. A retrieval plate 26 is connected to the top surface of the bearing flange 24. The end face of the retrieval plate 26 near the rotating shaft 13 is an inclined surface D34, which slopes downward in the direction close to the rotating shaft 13.

[0027] The bottom of each of the two mounting rods 35 is fixed with a reinforcing rib 30, which is fixed to the gate frame 1.

[0028] The water purification method for hydraulic engineering gates of the present invention uses a hydraulic engineering gate water purification device, and the specific steps are as follows: Step 1: Start the drive motor 6 of the water purification device of the gate of the water conservancy project, so that the drive motor 6 rotates in the forward direction. The filter frame 12 rises from the bottom of the gate frame 1 to the water surface to pick up the garbage in the water. After the filter frame 12 rises to the water surface, pour the picked-up garbage into the garbage collection box 20 until there is no garbage in the filter frame 12. Step 2: Start the drive motor 6 of the water purification device of the gate of the water conservancy project, so that the drive motor 6 reverses and the filter frame 12 descends from the water surface to the water surface. During the descent, the first inclined plate 23 displaces the garbage located below the filter frame 12 until the filter frame 12 descends to the bottom of the gate frame 1. Step 3: Repeat Step 1 and Step 2. When the garbage in the garbage collection box 20 is higher than the box wall, remove the garbage collection box 20 from the substrate 36, clean the garbage in the garbage collection box 20, and put the garbage collection box 20 back into the substrate 36 after cleaning. Step 4: Repeat Step 3 until there is no garbage in the filter frame 12 after the water purification device of the water conservancy project gate has been used for two consecutive retrievals.

[0029] Example 1 The water purification device for a gate in a water conservancy project includes a gate frame 1, within which a gate assembly is fixed. The gate assembly includes a first motor 2, a valve body 3, and a first screw 4. Valve grooves are provided on the inner walls of both sides of the gate frame 1. The valve body 3 is slidably connected to the valve grooves on both sides. The first screw 4 is threadedly connected to the top of the valve body 3, passing through the gate frame 1 and connected to the output end of the first motor 2. Because the valve body 3 is threadedly connected to the first screw 4, and the valve body 3 is slidably connected to the valve grooves on both sides of the gate frame 1, when the first motor 2 is started, its output end drives the first screw 4 to rotate. Under the guidance of the threaded transmission and the valve grooves, the valve body 3 moves vertically up and down along the valve grooves, thereby controlling the opening and closing of the gate and regulating the water flow.

[0030] A pair of transmission screws 9 are installed on the inner walls of both sides of the gate frame 1. A transmission structure 37 is installed at one end of each of the two transmission screws 9. The two transmission screws 9 are connected to a bearing plate 11 by threads. The two transmission screws 9 are symmetrically located on both sides of the bearing plate 11. A mounting plate 19 is fixed to the end face of the bearing plate 11. The mounting plate 19 protrudes from the gate frame 1. A bearing seat 14 is fixed to the upper surface of both sides of the mounting plate 19. A rotating shaft 13 is passed through the two bearing seats 14. A filter frame 12 is fixed to the curved surface of the rotating shaft 13. Gears 16 are fixed to both ends of the rotating shaft 13. A pair of racks 17 are fixed to the top two sides of the gate frame 1. The gears 16 mesh with the racks 17.

[0031] The water purification method for hydraulic engineering gates of the present invention uses a hydraulic engineering gate water purification device, and the specific steps are as follows: Step 1: Activate the transmission structure 37 of the water purification device of the gate of the water conservancy project, so that the filter frame 12 rises from the bottom of the gate frame 1 to the water surface to collect garbage in the water. After the filter frame 12 rises to the water surface, pour the collected garbage into the collection device until there is no garbage in the filter frame 12. Step 2: Activate the transmission structure 37 of the water purification device of the water conservancy project gate, so that the filter frame 12 descends from the water surface to the water surface until the bearing plate 11 contacts the inner bottom wall of the gate frame 1.

[0032] This device can lift the support plate 11 upwards via a transmission structure, and simultaneously lift the filter frame 12 connected to the support plate 11 upwards. During the upward lifting process, the filter frame 12 can scoop up underwater debris to the surface until it reaches the position where the gear 16 and rack 17 mesh. With the cooperation of the gear 16 and rack 17, the filter frame 12 gradually rotates, causing it to dump the collected debris into the waste collection device. This device can quickly and extensively clean underwater debris. Compared to manual retrieval, it is more efficient, completing the cleaning of the same area of ​​water in a shorter time, saving significant manpower and time costs. Furthermore, this device can operate continuously and stably, unaffected by fatigue or time constraints, allowing for uninterrupted debris retrieval operations to maintain the cleanliness of the water area. It also avoids the dangers that may arise from manual underwater debris retrieval, such as drowning and contact with harmful pollutants, ensuring the safety and health of the workers.

[0033] Example 2 Based on Embodiment 1, the transmission structure 37 includes a cover 5, which is fixed to the top of the gate frame 1. A worm 8 is inserted through the cover 5, and a transmission motor 6 is connected to one end of the worm 8. The transmission motor 6 is fixed to the gate frame 1. Two worm wheels 7 are meshed on the worm 8. Lifting grooves 21 are opened on the inner walls of both sides of the gate frame 1. Two transmission screws 9 are respectively installed in the two lifting grooves 21. The two transmission screws 9 pass through the top wall of the gate frame 1 and are respectively fixed to the end faces of the two worm wheels 7. The two sides of the bearing plate 11 are threadedly connected to the transmission screws 9 through the fixed lifting blocks 10. The width of the lifting blocks 10 matches the groove width of the lifting groove 21.

[0034] Using a worm gear drive allows for a larger transmission ratio, converting the high speed of the motor into a lower speed while increasing torque. This enables the transmission structure 37 to obtain greater force when retrieval garbage, ensuring stable retrieval even when encountering heavy garbage or facing significant resistance. Furthermore, the worm gear drive structure is relatively compact and occupies less space, making it easier to install in limited spaces and contributing to optimized overall device layout.

[0035] Example 3 Based on Embodiment 2, one end of each of the two racks 17 is fixed to the gate frame 1 via a connecting rod 18. Both connecting rods 18 are perpendicular to the gate frame 1. A pair of parallel mounting rods 35 are fixed to the middle of the gate frame 1. The mounting rods 35 are respectively fixed to the two outer side walls of the gate frame 1. The other end of each pair of racks 17 is respectively fixed to the inner side of the two mounting rods 35.

[0036] Mounting rod 35 and connecting rod 18 together fix rack 17, reducing the risk of deformation during operation and preventing problems with meshing between gear 16 and rack 17.

[0037] Example 4 Based on Embodiment 3, a first guide plate 25 is fixedly connected to the end face of the mounting plate 19 away from the bearing plate 11. The surface of the first guide plate 25 away from the mounting plate 19 is an inclined surface A31. The inclined surface A31 is inclined upward along the direction of the first guide plate 25 away from the mounting plate 19. A second guide plate 23 is fixedly connected to the bottom surface of the mounting plate 19. The surface of the second guide plate 23 away from the gate frame 1 is an inclined surface B32. The inclined direction of the inclined surface B32 is the same as the inclined direction of the inclined surface A31. The top edge of the inclined surface B32 is flush with the edge of the mounting plate 19 near the first guide plate 25.

[0038] When water flows through, inclined planes A31 and B32 can guide the water flow, reduce the impact of the water flow on the support plate 11 and the entire device, and make the water flow pass through the gate more smoothly. At the same time, it avoids the water flow disturbing the garbage in the filter frame 12. On the other hand, when the support plate 11 located on the water surface descends into the water, inclined planes A31 and B32 can push the floating garbage to move away from the filter frame 12, which facilitates subsequent garbage collection.

[0039] Example 5 Based on Embodiment 4, a support plate 15 is fixedly connected to the top surface of the bearing plate 11, the mounting plate 19 and the first guide plate 25. The surface of the support plate 15 near the first guide plate 25 is an inclined surface C33. The inclined surface C33 slopes downward along the direction from the bearing plate 11 to the first guide plate 25. The bottom edge of the inclined surface C33 is flush with the edge of the first guide plate 25 away from the mounting plate 19.

[0040] On the one hand, the support plate 15 can limit the rotation angle of the filter frame 12 through the inclined surface C33, so that the filter frame 12 is always in the optimal working position range. On the other hand, the inclined surface C33 of the support plate 15 can guide the dumped garbage and reduce the distance between the filter frame 12 and the garbage collection device, so that more garbage can enter the garbage collection device and improve work efficiency.

[0041] Example 6 Based on Embodiment 5, the ends of the two mounting rods 35 of this device are jointly fixed to a base plate 36. A detachable garbage collection frame 20 is installed on the base plate 36. The distance between the side of the garbage collection frame 20 near the gate frame 1 and the gate frame 1 is equal to the distance between the side of the first guide plate 25 away from the gate frame 1 and the gate frame 1. The bottom surface of the garbage collection frame 20 and the base plate 36 are both provided with corresponding through holes.

[0042] Mounting the base plate 36 and installing the waste collection frame 20 on it facilitates waste collection and improves overall work efficiency. The perforated holes allow residual waste liquid to drain out while intercepting solid waste within the waste collection frame 20, achieving initial separation of water and waste. As the filtration process continues, the water within the waste collection frame 20 is continuously filtered, resulting in solid waste remaining primarily in the frame. This helps maintain the overall water quality and reduces water quality deterioration caused by prolonged immersion of waste in water. Furthermore, timely drainage of water from the waste collection frame 20 effectively reduces the weight of the entire device and minimizes the risk of support deformation.

[0043] Example 7 Based on Embodiment Six, the base plate 36 of this device is connected to the waste collection frame 20 via a sliding groove, which is parallel to the rotating shaft 13. Handles 22 are also fixed to the upper sides of both sides of the waste collection frame. The sliding groove provides precise positioning and guidance, allowing the waste collection frame 20 to be quickly and accurately installed onto the base plate 36. The force on the waste collection frame 20 is typically perpendicular to the gate frame. The transmission structure 37 is perpendicular to the mounting rod 35, eliminating concerns about the waste collection frame 20 being impacted and detached from the base plate 36. Through the cooperation of the lifting groove 21 and the transmission structure 37, installation requires no complex alignment or adjustment process; simply slide the waste collection frame 20 into place along the transmission structure 37 using the handles 22.

[0044] Example 8 Based on Embodiment 7, the top of the end face of the filter frame 12 away from the rotating shaft 13 is fixedly connected to a bearing flange 24. A retrieval plate 26 is connected to the top surface of the bearing flange 24. The end face of the retrieval plate 26 near the rotating shaft 13 is a slope D34. The slope D34 is inclined downward in the direction close to the rotating shaft 13. To facilitate the installation of the retrieval plate 26, a guide groove 38 is provided on the top surface of the bearing flange 24. A guide block 39 that cooperates with the guide groove 38 is fixedly connected to the bottom surface of the retrieval plate 26. A connecting groove 41 is provided below the guide block 39. A telescopic rod 28 is fixedly connected to the top wall of the connecting groove 41. A locking block 29 is fixedly connected to the other end of the telescopic rod 28. A spring 27 is sleeved on the telescopic rod 28. A locking groove that matches the locking block 29 is provided on the side of the guide groove 38 near the guide block 39.

[0045] The addition of the retrieval plate 26 allows for coverage of a wider area of ​​water during each operation, thus retrieval more garbage at once. In addition, the increased retrieval area helps to clean up garbage in the water more thoroughly, reduce garbage residue, and also cover some hard-to-reach corners and edge areas.

[0046] Example 9 Based on Embodiment 8, the bottom of each of the two mounting rods 35 of this device is fixed with a reinforcing rib 30, which is fixed to the gate frame 1. Since the garbage collection box 20 is mounted on the support, the support will bear a considerable weight and is at risk of breaking. Installing reinforcing ribs 30 at the bottom of the mounting rods 35 can improve the load-bearing capacity of each component of the device, enabling it to withstand greater external forces, ensuring the stability of the overall structure of the device, and extending its service life. The triangle shape can achieve a good reinforcement effect with less material while meeting the requirements of structural strength and rigidity, thereby reducing the weight of the structure, reducing material costs and energy consumption.

[0047] Example 10 Based on the water purification device for water conservancy project gates in Example 9, the specific steps of the water purification method for water conservancy project gates are as follows: Step 1: Start the drive motor 6 of the water purification device of the gate of the water conservancy project, so that the drive motor 6 rotates in the forward direction. The filter frame 12 rises from the bottom of the gate frame 1 to the water surface to pick up the garbage in the water. After the filter frame 12 rises to the water surface, pour the picked-up garbage into the garbage collection box 20 until there is no garbage in the filter frame 12. Step 2: Start the drive motor 6 of the water purification device of the gate of the water conservancy project, so that the drive motor 6 reverses and the filter frame 12 descends from the water surface to the water surface. During the descent, the first inclined plate 23 displaces the garbage located below the filter frame 12 until the filter frame 12 descends to the bottom of the gate frame 1. Step 3: Repeat Step 1 and Step 2. When the garbage in the garbage collection box 20 is higher than the box wall, remove the garbage collection box 20 from the substrate 36, clean the garbage in the garbage collection box 20, and put the garbage collection box 20 back into the substrate 36 after cleaning. Step 4: Repeat Step 3 until there is no garbage in the filter frame 12 after the water purification device of the water conservancy project gate has been used for two consecutive retrievals.

[0048] The water purification system for water conservancy engineering gates of the present invention can automatically retrieve debris near the gate and dump the retrieved debris, making it convenient to clean up underwater garbage that is difficult to clean manually.

Claims

1. A water purification device for a gate in a water conservancy project, characterized in that, The system includes a gate frame (1), on which a pair of transmission screws (9) are installed on the inner walls of both sides. A transmission structure (37) is installed at one end of each of the two transmission screws (9). The two transmission screws (9) are connected to a bearing plate (11) by threads. The two transmission screws (9) are symmetrically located on both sides of the bearing plate (11). A mounting plate (19) is fixed to the end face of the bearing plate (11). The mounting plate (19) protrudes from the gate frame (1). A bearing seat (14) is fixed to the upper surface of both sides of the mounting plate (19). A rotating shaft (13) is passed through the two bearing seats (14). A filter frame (12) is fixed to the curved surface of the rotating shaft (13). Gears (16) are fixed to both ends of the rotating shaft (13). A pair of racks (17) are fixed to the top two sides of the gate frame (1). The gears (16) mesh with the racks (17). The transmission structure (37) includes a cover (5), which is fixed to the top of the gate frame (1). A worm (8) is inserted through the cover (5). A transmission motor (6) is connected to one end of the worm (8). The transmission motor (6) is fixed to the gate frame (1). Two worm wheels (7) mesh on the worm (8). Lifting grooves (21) are opened on the inner walls of both sides of the gate frame (1). Two transmission screws (9) are respectively installed in the two lifting grooves (21). The two transmission screws (9) pass through the top wall of the gate frame (1) and are respectively fixed to the end faces of the two worm wheels (7). The two sides of the bearing plate (11) are threadedly connected to the transmission screws (9) through the fixed lifting blocks (10). The width of the lifting blocks (10) matches the width of the lifting grooves (21). Two racks (17) are fixed to the gate frame (1) at one end via connecting rods (18). Both connecting rods (18) are perpendicular to the gate frame (1). A pair of parallel mounting rods (35) are fixed to the middle of the gate frame (1). The mounting rods (35) are fixed to the two outer side walls of the gate frame (1). The other ends of the pair of racks (17) are fixed to the inner side of the two mounting rods (35). The mounting plate (19) is fixed to the end face away from the bearing plate (11) with a first guide plate (25). The surface of the first guide plate (25) away from the mounting plate (19) is an inclined surface A (31). The inclined surface A (31) is inclined upward along the direction of the first guide plate (25) away from the mounting plate (19). The bottom surface of the mounting plate (19) is fixed to a second guide plate (23). The surface of the second guide plate (23) away from the gate frame (1) is an inclined surface B (32). The inclined direction of the inclined surface B (32) is the same as the inclined direction of the inclined surface A (31). The top edge of the inclined surface B (32) is flush with the edge of the mounting plate (19) near the first guide plate (25). The top surfaces of the bearing plate (11), mounting plate (19) and the first guide plate (25) are all fixed with a support plate (15). The surface of the support plate (15) near the first guide plate (25) is an inclined surface C (33). The inclined surface C (33) slopes downward along the direction from the bearing plate (11) to the first guide plate (25). The bottom edge of the inclined surface C (33) is flush with the edge of the first guide plate (25) away from the mounting plate (19). The ends of the two mounting rods (35) are fixed to a base plate (36). A detachable garbage collection frame (20) is installed on the base plate (36). The distance between the side of the garbage collection frame (20) close to the gate frame (1) and the gate frame (1) is equal to the distance between the side of the first guide plate (25) away from the gate frame (1) and the gate frame (1). The bottom surface of the garbage collection frame (20) and the base plate (36) are both provided with corresponding through holes. The base plate (36) is connected to the garbage collection box (20) by a sliding groove, which is parallel to the rotating shaft (13); The filter frame (12) has a bearing flange (24) fixed to the top of the end face away from the rotating shaft (13). The top surface of the bearing flange (24) is connected to a retrieval plate (26). The end face of the retrieval plate (26) near the rotating shaft (13) is an inclined surface D (34). The inclined surface D (34) is inclined downward in the direction near the rotating shaft (13).

2. The water purification device for a gate in a water conservancy project according to claim 1, characterized in that, The bottom of the two mounting rods (35) are respectively fixed with reinforcing ribs (30), and the reinforcing ribs (30) are fixed to the gate frame (1).

3. A water purification method for gates in water conservancy projects, characterized in that, The specific steps for using the water purification device for the gate of a water conservancy project as described in claim 2 are as follows: Step 1: Start the drive motor (6) of the water purification device of the gate of the water conservancy project, so that the drive motor (6) rotates in the forward direction. The filter frame (12) rises from the bottom of the gate frame (1) to the water surface to collect garbage in the water. After the filter frame (12) rises to the water surface, the collected garbage is poured into the garbage collection box (20) until there is no garbage in the filter frame (12). Step 2: Start the drive motor (6) of the water purification device of the gate of the water conservancy project, so that the drive motor (6) reverses and the filter frame (12) descends from the water surface to the water surface. During the descent, the second guide plate (23) pushes away the garbage located below the filter frame (12) until the filter frame (12) descends to the bottom of the gate frame (1). Step 3: Repeat Step 1 and Step 2. When the garbage in the garbage collection box (20) is higher than the box wall, remove the garbage collection box (20) from the substrate (36), clean the garbage in the garbage collection box (20), and put the garbage collection box (20) back into the substrate (36) after cleaning. Step 4: Repeat step 3 until there is no garbage in the filter frame (12) after the water purification device of the water conservancy project gate has been used for two consecutive retrievals.

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