Backwashing equipment for high-efficiency filter

Abstract

The invention relates to the technical field of backwashing for high-efficiency filters, and discloses backwashing equipment for a high-efficiency filter, which comprises a filter shell, an inlet fixedly connected to the upper surface of the filter shell, an outlet fixedly connected to the lower surface of the filter shell, an automatic valve fixedly connected to the surface of the outlet, and a bracket fixedly connected to the top of the filter shell, a drain outlet is fixedly connected to the lower surface of the filter shell, a drain valve is fixedly connected to the surface of the drain outlet, and a side maintenance opening is formed in the surface of the filter shell. According to the filter material backwashing device disclosed by the invention, when backwashing work needs to be carried out, a water pump is started at the moment, an output end can drain water in a water tank into a hose through a water pumping pipe and a water outlet pipe, so that the water enters a backwashing frame and is discharged through a high-pressure flushing tank, and the filter material is subjected to backwashing work by the machine; and the rotating rod drives the backwashing frame to rotate in the annular sliding rail through the sliding block.

Description

Technical Field

[0001] This invention relates to the technical field of backwashing equipment for high-efficiency filters, specifically to a backwashing device for high-efficiency filters. Background Technology

[0002] Filters are indispensable devices in pipelines transporting media, typically installed at the inlet end of pressure reducing valves, relief valves, level control valves, and other equipment. A filter consists of a cylinder, a stainless steel filter screen, a drain section, a transmission mechanism, and an electrical control system. When water to be treated passes through the filter cylinder, impurities are blocked.

[0003] An existing backwashing device for high-efficiency filters cannot fully rinse the filter during backwashing, often leaving some impurities on the filter surface. Over time, these impurities can cause machine blockage, requiring manual disassembly and cleaning, which wastes a lot of manpower and time, thus reducing the machine's efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a backwashing device for high-efficiency filters to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a backwashing device for a high-efficiency filter, comprising a filter housing, an inlet fixedly connected to the upper surface of the filter housing, an outlet fixedly connected to the lower surface of the filter housing, an automatic valve fixedly connected to the surface of the outlet, a bracket fixedly connected to the top of the filter housing, a drain port fixedly connected to the lower surface of the filter housing, a drain valve fixedly connected to the surface of the drain port, a side maintenance port provided on the surface of the filter housing, a support frame fixedly connected to the bottom of the filter housing, a support bracket fixedly connected to the bottom of the filter housing, a rotary backwashing device provided inside the filter housing, a lifting backwashing device provided inside the filter housing, and a drain device provided inside the filter housing. The rotary backwashing device includes a motor, the surface of which is fixedly connected to the inner wall of the support frame, a rotating rod fixedly connected to the output end of the motor, an annular support plate fixedly connected to the surface of the rotating rod, a filter material rotatably connected to the inner wall of the annular support plate, and a water pump fixedly connected to the inner wall of the support frame.

[0006] Furthermore, the output end of the water pump is fixedly connected to a water suction pipe, the end of the water suction pipe away from the water pump is fixedly connected to a water tank, the output end of the water pump is fixedly connected to an outlet pipe, the inner wall of the outlet pipe is rotatably connected to a flexible hose, the end of the flexible hose away from the outlet pipe is fixedly connected to a backwash frame, the end of the backwash frame is fixedly connected to a support block, the top of the backwash frame is provided with a high-pressure flushing tank, the bottom of the inner wall of the filter housing is fixedly connected to an annular slide rail, and the inner wall of the annular slide rail is slidably connected to a slider.

[0007] Furthermore, the rotating rod penetrates the filter material and extends to the top of the backwash frame. The end of the rotating rod away from the motor is fixedly connected to the top of the backwash frame. The surface of the water tank is fixedly connected to the inner wall of the support frame. The number of high-pressure flushing tanks is several.

[0008] Furthermore, the hose penetrates the filter housing and extends to the inner wall of the backwash frame, the annular slide rail is located below the backwash frame, the end of the slider away from the annular slide rail is fixedly connected to the bottom surface of the backwash frame, and there are four sliders.

[0009] Furthermore, the lifting backwashing device includes a waterproof cover, the bottom of which is fixedly connected to the bottom of the inner wall of the filter housing. A one-way electric push rod is fixedly connected to the inner wall of the waterproof cover, and a push rod is fixedly connected to the output end of the one-way electric push rod. A telescopic hose is fixedly connected to the inner wall of the support block, and a high-pressure nozzle is fixedly connected to the end of the telescopic hose away from the support block. A lifting ring plate is fixedly connected to the surface of the high-pressure nozzle, and a support ring plate is fixedly connected to the surface of the rotating rod. A cleaning brush is fixedly connected to the end of the support ring plate away from the rotating rod, and a cleaning scraper is fixedly connected to the upper surface of the cleaning brush. An elastic rod is fixedly connected to the top of the support block.

[0010] Furthermore, the end of the push rod away from the unidirectional electric push rod contacts the bottom of the lifting ring plate, the high-pressure nozzle penetrates the lifting ring plate and extends to the outer end of the lifting ring plate, the surface of the cleaning brush is adapted to the surface of the filter material, the surface of the cleaning scraper is adapted to the inner wall surface of the filter housing, and the end of the elastic rod away from the support block is fixedly connected to the bottom of the lifting ring plate.

[0011] Furthermore, the sewage discharge device includes a thin rod, the end of which is fixedly connected to the top of the lifting ring plate. A sludge collection cylinder is fixedly connected to the end of the thin rod away from the lifting ring plate. A support rod is fixedly connected to the surface of the rotating rod. A scraper is fixedly connected to the end of the support rod away from the rotating rod. A fixing frame is fixedly connected to the inner wall of the sludge collection cylinder. A filter plate is rotatably connected to the inner wall of the fixing frame. A fixed wheel is fixedly connected to the inner wall of the sludge collection cylinder. A slide rail is slidably connected to the end of the fixed wheel away from the sludge collection cylinder. A circular telescopic rod is fixedly connected to the inner wall of the slide rail. A lifting rail is fixedly connected to the surface of the slide rail away from the fixed wheel. A lifting wheel is slidably connected to the inner wall of the lifting rail.

[0012] Furthermore, the surface of the scraper is adapted to the inner wall of the sludge collection cylinder, the fixing frame is located above the filter plate, the end of the circular telescopic rod away from the slide rail is fixedly connected to the top of the fixed wheel, and the end of the lifting wheel away from the lifting rail is fixedly connected to the top of the filter plate.

[0013] The present invention has the following beneficial effects: When backwashing is required, the water pump is turned on, and the output end draws water from the tank through the suction pipe, then through the outlet pipe into the hose, which in turn enters the backwash frame. The water is then discharged through the high-pressure flushing tank, allowing the machine to backwash the filter material. When the motor is turned on, the output end drives the rotating rod, which in turn drives the backwash frame to rotate within the annular slide rail via a slider. As the backwash frame rotates, it causes the hose to rotate within the outlet pipe, allowing the machine to perform a more thorough backwashing of the filter material. This ensures that some areas are not rinsed, preventing impurities from accumulating and clogging the filter material, thus affecting the machine's filtration performance.

[0014] When the unidirectional electric push rod of this invention is activated, the output end will drive the lifting ring plate to move up and down via the push rod. When the lifting ring plate moves up and down, it will also drive the high-pressure nozzle to stretch and extend the flexible hose to move up and down, making the machine more thorough and convenient when backwashing the filter material. This avoids incomplete cleaning due to reduced water pressure caused by excessive height. The elastic rod keeps the lifting ring plate in a stable position when it moves. At the same time, when the unidirectional electric push rod moves downward, the elastic rod will stretch and drive the lifting ring plate to reset. When the rotating rod rotates, it will drive the cleaning brush and cleaning scraper to move together via the support ring plate, so that they can clean and scrape the surface of the filter material and the inner wall surface of the filter shell, preventing small amounts of impurities from accumulating for a long time and causing damage to the machine.

[0015] When water to be filtered enters the filter housing through the inlet, it first falls into the sludge collection cylinder. The filter plate then performs preliminary filtration, causing a large amount of impurities to concentrate inside the cylinder. At this point, the rotating rod rotates, driving the scraper to rotate via the support rod, cleaning the inner wall of the cylinder. Simultaneously, during backwashing, the lifting ring plate moves upward, pushing the sludge collection cylinder upward via a thin rod. As the cylinder moves upward and detaches from the filter material surface, the weight of the impurities causes the filter plate to slide downward along the slide rail on the surface of the fixed wheel, tilting the filter plate towards the drain outlet. This allows the machine to quickly discharge impurities through the drain outlet during backwashing, improving efficiency. The circular telescopic rod also ensures greater stability during slide rail movement.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the support structure of the present invention; Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the rotary backwashing device of the present invention; Figure 5 This is a schematic diagram of the water pump structure of the present invention; Figure 6 This is another schematic diagram of the water pump structure of the present invention; Figure 7 This is a schematic diagram of the lifting and backwashing device of the present invention; Figure 8 This is a schematic diagram of the telescopic hose structure of the present invention; Figure 9 This is another structural schematic diagram of the lifting and backwashing device of the present invention; Figure 10 This is a schematic diagram of the sewage discharge device of the present invention; Figure 11 This is another structural schematic diagram of the sewage discharge device of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram of section A in the middle.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Filter housing; 2. Inlet; 3. Outlet; 4. Automatic valve; 5. Bracket; 6. Drain outlet; 7. Drain valve; 8. Side maintenance port; 9. Support frame; 10. Support bracket; 11. Rotary backwashing device; 12. Lifting backwashing device; 13. Draining device; 20. Motor; 21. Rotating rod; 22. Filter material; 23. Annular support plate; 24. Water pump; 25. Pumping pipe; 26. Water tank; 27. Outlet pipe; 28. Flexible hose; 29. ​​Backwashing frame; 30. Support block; 31. High pressure. 32. Flushing tank; 33. Circular slide rail; 40. Slider; 41. Waterproof cover; 42. One-way electric actuator; 43. Push rod; 44. Lifting ring plate; 45. Telescopic hose; 46. High-pressure nozzle; 47. Support ring plate; 48. Cleaning brush; 49. Cleaning scraper; 50. Elastic rod; 51. Thin rod; 52. Sludge collection cylinder; 53. Support rod; 54. Scraper; 55. Fixing frame; 56. Filter plate; 57. Fixing wheel; 58. Slide rail; 59. Circular telescopic rod; 60. Lifting rail; 71. Lifting wheel. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 - Figure 12 As shown, the present invention is a backwashing device for a high-efficiency filter, including a filter housing 1, an inlet 2 fixedly connected to the upper surface of the filter housing 1, an outlet 3 fixedly connected to the lower surface of the filter housing 1, an automatic valve 4 fixedly connected to the surface of the outlet 3, a bracket 5 fixedly connected to the top of the filter housing 1, a drain port 6 fixedly connected to the lower surface of the filter housing 1, a drain valve 7 fixedly connected to the surface of the drain port 6, a side maintenance port 8 provided on the surface of the filter housing 1, a support frame 9 fixedly connected to the bottom of the filter housing 1, a support frame 10 fixedly connected to the bottom of the filter housing 1, a rotary backwashing device 11 provided inside the filter housing 1, a lifting backwashing device 12 provided inside the filter housing 1, and a draining device 13 provided inside the filter housing 1. The rotary backwashing device 11 includes a motor 20. When the motor 20 is turned on, its output end drives the rotating rod 21 to rotate. The surface of the motor 20 is fixedly connected to the inner wall of the bracket 5. The rotating rod 21 is fixedly connected to the output end of the motor 20. The rotating rod 21 drives the backwashing frame 29 to rotate inside the annular slide rail 32 via the slider 33. An annular support plate 23 is fixedly connected to the surface of the rotating rod 21. A filter material 22 is rotatably connected to the inner wall of the annular support plate 23. A water pump 24 is fixedly connected to the inner wall of the bracket 9. When the water pump 24 is turned on, the output end will discharge the water inside the water tank 26 through the water pipe 25, through the water outlet pipe 27, into the hose 28, and then into the backwashing frame 29, and then discharge it through the high-pressure flushing tank 31.

[0022] A water pump 24 is fixedly connected to a water suction pipe 25 at its output end. A water tank 26 is fixedly connected to the end of the water suction pipe 25 away from the water pump 24. A water outlet pipe 27 is fixedly connected to the output end of the water pump 24. A flexible hose 28 is rotatably connected to the inner wall of the water outlet pipe 27. A backwash frame 29 is fixedly connected to the end of the flexible hose 28 away from the water outlet pipe 27. When the backwash frame 29 rotates, it will drive the flexible hose 28 to rotate inside the water outlet pipe 27. A support block 30 is fixedly connected to the end of the backwash frame 29. A high-pressure flushing tank 31 is opened on the top of the backwash frame 29. An annular slide rail 32 is fixedly connected to the bottom of the inner wall of the filter housing 1. A slider 33 is slidably connected to the inner wall of the annular slide rail 32.

[0023] The rotating rod 21 passes through the filter material 22 and extends to the top of the backwash frame 29. The end of the rotating rod 21 away from the motor 20 is fixedly connected to the top of the backwash frame 29. The surface of the water tank 26 is fixedly connected to the inner wall of the support frame 10. There are several high-pressure flushing tanks 31.

[0024] The hose 28 penetrates the filter housing 1 and extends to the inner wall of the backwash frame 29. The annular slide rail 32 is located below the backwash frame 29. The end of the slider 33 away from the annular slide rail 32 is fixedly connected to the bottom surface of the backwash frame 29. There are four sliders 33.

[0025] The lifting backwashing device 12 includes a waterproof cover 40. The bottom of the waterproof cover 40 is fixedly connected to the bottom of the inner wall of the filter housing 1. A one-way electric push rod 41 is fixedly connected to the inner wall of the waterproof cover 40. When the one-way electric push rod 41 is opened, its output end will drive the lifting ring plate 43 to move up and down through the push rod 42. The output end of the one-way electric push rod 41 is fixedly connected to the push rod 42. A telescopic hose 44 is fixedly connected to the inner wall of the support block 30. A high-pressure nozzle 45 is fixedly connected to the end of the telescopic hose 44 away from the support block 30. The lifting ring plate 43 is fixedly connected to the surface of the high-pressure nozzle 45. The lifting ring plate 43 moves up and down. When in motion, the high-pressure nozzle 45 will move up and down together with the telescopic hose 44. A support ring plate 46 is fixedly connected to the surface of the rotating rod 21. The support ring plate 46 drives the cleaning brush 47 and the cleaning scraper 48 to move together, so that they can clean and scrape the surface of the filter material 22 and the inner wall surface of the filter housing 1. The end of the support ring plate 46 away from the rotating rod 21 is fixedly connected to the cleaning brush 47. The upper surface of the cleaning brush 47 is fixedly connected to the cleaning scraper 48. The top of the support block 30 is fixedly connected to the elastic rod 49. The elastic rod 49 makes the position stable when the lifting ring plate 43 moves.

[0026] The end of the push rod 42 away from the unidirectional electric push rod 41 contacts the bottom of the lifting ring plate 43. The high-pressure nozzle 45 passes through the lifting ring plate 43 and extends to the outer end of the lifting ring plate 43. The surface of the cleaning brush 47 is adapted to the surface of the filter material 22. The surface of the cleaning scraper 48 is adapted to the inner wall surface of the filter housing 1. The end of the elastic rod 49 away from the support block 30 is fixedly connected to the bottom of the lifting ring plate 43.

[0027] The sewage discharge device 13 includes a thin rod 50, which pushes the sludge collection cylinder 51 upward. When the sludge collection cylinder 51 moves upward and detaches from the surface of the filter material 22, the end of the thin rod 50 is fixedly connected to the top of the lifting ring plate 43. The end of the thin rod 50 away from the lifting ring plate 43 is fixedly connected to the sludge collection cylinder 51. A support rod 52 is fixedly connected to the surface of the rotating rod 21. The support rod 52 drives the scraper 53 to rotate, so that the scraper 53 cleans the inner wall of the sludge collection cylinder 51. The end of the support rod 52 away from the rotating rod 21 is fixedly connected to the scraper 53. A fixing frame 54 is fixedly connected to the inner wall of the sludge collection cylinder 51. A filter plate 55 is rotatably connected to the wall. The filter plate 55 performs preliminary filtration on the water to be filtered. A fixed wheel 56 is fixedly connected to the inner wall of the sludge collection cylinder 51. A slide rail 57 is slidably connected to the end of the fixed wheel 56 away from the sludge collection cylinder 51. A circular telescopic rod 58 is fixedly connected to the inner wall of the slide rail 57. The circular telescopic rod 58 makes the position of the slide rail 57 more stable when it moves. A lifting rail 59 is fixedly connected to the surface of the slide rail 57 away from the fixed wheel 56. A lifting wheel 60 is slidably connected to the inner wall of the lifting rail 59. The lifting wheel 60 slides downward on the surface of the fixed wheel 56 through the slide rail 57, causing the filter plate 55 to tilt towards the position of the drain outlet 6.

[0028] The surface of the scraper 53 is adapted to the inner wall of the sludge collection cylinder 51. The fixed frame 54 is located above the filter plate 55. The end of the circular telescopic rod 58 away from the slide rail 57 is fixedly connected to the top of the fixed wheel 56. The end of the lifting wheel 60 away from the lifting rail 59 is fixedly connected to the top of the filter plate 55.

[0029] During use, when backwashing is required, the water pump 24 is turned on. Water from the water tank 26 is pumped through the water pipe 25, then through the water outlet pipe 27 into the hose 28, and finally into the backwash frame 29. The water is then discharged through the high-pressure flushing tank 31, allowing the machine to backwash the filter material 22. When the motor 20 is turned on, the output end drives the rotating rod 21 to rotate, causing the backwash frame 29 to rotate within the annular slide rail 32 via the slider 33. The rotation of the backwash frame 29 causes the hose 28 to rotate within the water outlet pipe 27, allowing the machine to perform a rotational backwashing of the filter material 22. The backwashing of the filter material 22 is more thorough, preventing some areas from being missed and accumulating impurities, which could clog the filter material 22 and affect the machine's filtration operation. When the one-way electric push rod 41 is opened, the output end will drive the lifting ring plate 43 to move up and down via the push rod 42. When the lifting ring plate 43 moves up and down, it will also drive the high-pressure nozzle 45 to stretch the telescopic hose 44 up and down, making the backwashing of the filter material 22 more thorough and convenient, and avoiding incomplete cleaning due to reduced water pressure caused by excessive height. The elastic rod 49 keeps the position of the lifting ring plate 43 stable when it moves. At the same time, when the one-way electric push rod 41 moves downward, the elastic rod... 49 will reposition the lifting ring plate 43 by stretching. When the rotating rod 21 rotates, it will drive the cleaning brush 47 and the cleaning scraper 48 to move together through the support ring plate 46, so that they can clean and scrape the surface of the filter material 22 and the inner wall surface of the filter housing 1, avoiding the accumulation of small impurities for a long time and causing machine malfunction. When the water to be filtered enters the interior of the filter housing 1 through the inlet 2, it will first fall into the interior of the sludge collection cylinder 51. The filter plate 55 will perform preliminary filtration on the water to be filtered, so that a large number of impurities will be concentrated inside the sludge collection cylinder 51. At this time, the rotation of the rotating rod 21 will drive the scraper 53 to rotate through the support rod 52. The scraper 53 cleans the inner wall of the collection cylinder 51. Simultaneously, during backwashing, the lifting ring plate 43 moves upward, pushing the collection cylinder 51 upward via the thin rod 50. When the collection cylinder 51 moves upward and separates from the surface of the filter material 22, the filter plate 55, due to the weight of the impurities, causes the lifting wheel 60 to slide downward on the surface of the fixed wheel 56 via the slide rail 57. This tilts the filter plate 55 towards the drain port 6, allowing the machine to quickly discharge impurities through the drain port 6 during backwashing, improving the machine's efficiency. The circular telescopic rod 58 further stabilizes the position of the slide rail 57 during movement.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A backwashing device for a high-efficiency filter, comprising a filter housing (1), characterized in that: An inlet (2) is fixedly connected to the upper surface of the filter housing (1), an outlet (3) is fixedly connected to the lower surface of the filter housing (1), an automatic valve (4) is fixedly connected to the surface of the outlet (3), a bracket (5) is fixedly connected to the top of the filter housing (1), a drain port (6) is fixedly connected to the lower surface of the filter housing (1), a drain valve (7) is fixedly connected to the surface of the drain port (6), a side maintenance port (8) is provided on the surface of the filter housing (1), a support frame (9) is fixedly connected to the bottom of the filter housing (1), a support frame (10) is fixedly connected to the bottom of the filter housing (1), a rotary backwashing device (11) is provided inside the filter housing (1), a lifting backwashing device (12) is provided inside the filter housing (1), and a drain device (13) is provided inside the filter housing (1). The rotary backwashing device (11) includes a motor (20), the surface of the motor (20) is fixedly connected to the inner wall of the bracket (5), the output end of the motor (20) is fixedly connected to a rotating rod (21), the surface of the rotating rod (21) is fixedly connected to an annular support plate (23), the inner wall of the annular support plate (23) is rotatably connected to a filter material (22), and the inner wall of the support frame (9) is fixedly connected to a water pump (24).

2. The backwashing device for a high-efficiency filter according to claim 1, characterized in that: The output end of the water pump (24) is fixedly connected to a water suction pipe (25), and the end of the water suction pipe (25) away from the water pump (24) is fixedly connected to a water tank (26). The output end of the water pump (24) is fixedly connected to a water outlet pipe (27). A flexible hose (28) is rotatably connected to the inner wall of the water outlet pipe (27). A backwashing frame (29) is fixedly connected to the end of the flexible hose (28) away from the water outlet pipe (27). A support block (30) is fixedly connected to the end of the backwashing frame (29). A high-pressure flushing tank (31) is opened on the top of the backwashing frame (29). An annular slide rail (32) is fixedly connected to the bottom of the inner wall of the filter housing (1). A slider (33) is slidably connected to the inner wall of the annular slide rail (32).

3. The backwashing device for a high-efficiency filter according to claim 2, characterized in that: The rotating rod (21) passes through the filter material (22) and extends to the top of the backwash frame (29). The end of the rotating rod (21) away from the motor (20) is fixedly connected to the top of the backwash frame (29). The surface of the water tank (26) is fixedly connected to the inner wall of the support frame (10). There are several high-pressure flushing tanks (31).

4. The backwashing device for a high-efficiency filter according to claim 3, characterized in that: The hose (28) penetrates the filter housing (1) and extends to the inner wall of the backwash frame (29). The annular slide rail (32) is located below the backwash frame (29). The end of the slider (33) away from the annular slide rail (32) is fixedly connected to the bottom surface of the backwash frame (29). There are four sliders (33).

5. The backwashing device for a high-efficiency filter according to claim 4, characterized in that: The lifting backwashing device (12) includes a waterproof cover (40), the bottom of which is fixedly connected to the bottom of the inner wall of the filter housing (1). A one-way electric push rod (41) is fixedly connected to the inner wall of the waterproof cover (40). A push rod (42) is fixedly connected to the output end of the one-way electric push rod (41). A telescopic hose (44) is fixedly connected to the inner wall of the support block (30). A high-pressure nozzle (45) is fixedly connected to the end of the telescopic hose (44) away from the support block (30). A lifting ring plate (43) is fixedly connected to the surface of the high-pressure nozzle (45). A support ring plate (46) is fixedly connected to the surface of the rotating rod (21). A cleaning brush (47) is fixedly connected to the end of the support ring plate (46) away from the rotating rod (21). A cleaning scraper (48) is fixedly connected to the upper surface of the cleaning brush (47). An elastic rod (49) is fixedly connected to the top of the support block (30).

6. The backwashing device for a high-efficiency filter according to claim 5, characterized in that: The end of the push rod (42) away from the unidirectional electric push rod (41) contacts the bottom of the lifting ring plate (43), the high-pressure nozzle (45) penetrates the lifting ring plate (43) and extends to the outer end of the lifting ring plate (43), the surface of the cleaning brush (47) is adapted to the surface of the filter material (22), the surface of the cleaning scraper (48) is adapted to the inner wall surface of the filter housing (1), and the end of the elastic rod (49) away from the support block (30) is fixedly connected to the bottom of the lifting ring plate (43).

7. The backwashing device for a high-efficiency filter according to claim 6, characterized in that: The sewage discharge device (13) includes a thin rod (50), the end of which is fixedly connected to the top of a lifting ring plate (43). A sludge collection cylinder (51) is fixedly connected to the end of the thin rod (50) away from the lifting ring plate (43). A support rod (52) is fixedly connected to the surface of the rotating rod (21). A scraper (53) is fixedly connected to the end of the support rod (52) away from the rotating rod (21). A fixing frame (54) is fixedly connected to the inner wall of the sludge collection cylinder (51). A filter plate (55) is rotatably connected to the inner wall of the fixed frame (54). A fixed wheel (56) is fixedly connected to the inner wall of the sludge collection cylinder (51). A slide rail (57) is slidably connected to the end of the fixed wheel (56) away from the sludge collection cylinder (51). A circular telescopic rod (58) is fixedly connected to the inner wall of the slide rail (57). A lifting rail (59) is fixedly connected to the surface of the slide rail (57) away from the fixed wheel (56). A lifting wheel (60) is slidably connected to the inner wall of the lifting rail (59).

8. The backwashing device for a high-efficiency filter according to claim 7, characterized in that: The surface of the scraper (53) is adapted to the inner wall of the sludge collection cylinder (51), the fixing frame (54) is located above the filter plate (55), the end of the circular telescopic rod (58) away from the slide rail (57) is fixedly connected to the top of the fixed wheel (56), and the end of the lifting wheel (60) away from the lifting rail (59) is fixedly connected to the top of the filter plate (55).

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