Efficient sewage treatment device

Abstract

The invention discloses an efficient sewage treatment device, and relates to the technical field of sewage treatment.The efficient sewage treatment device comprises a shell distributed in a cylindrical structure, a rotatable roller filter sieve is arranged on the inner side of the shell, and a plurality of water pipes distributed at equal intervals along the circumferential track are arranged on the periphery of the roller filter sieve; and each water pipe is provided with a group of sprayers which are arranged from front to back. Along with continuous rotation of the roller filter sieve, the outer surface of the roller filter sieve is in continuous contact with a plurality of water pipes and a plurality of groups of sprayers, and water sprayed by the sprayers generates impact acting force on the inner side of the screen, so that dirt in the roller filter sieve can be separated from the screen and then falls off, and the blockage phenomenon caused by long-term distribution of the dirt on the inner side of the screen is effectively avoided; a gap for sewage to pass through is always reserved on the screen of the roller filter sieve, so that the efficiency of sewage filtering operation is improved. And meanwhile, the cleaning strength of dirt in the screen body can be improved, and the dirt is promoted to rapidly fall down.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a high-efficiency wastewater treatment device. Background Technology

[0002] Small-scale wastewater treatment equipment is primarily used in decentralized, small-scale wastewater discharge scenarios. In villages, towns, agritourism areas, and homestay clusters without municipal pipe network coverage, it's necessary to treat domestic sewage to prevent direct discharge into farmland and rivers, thus improving the rural water environment. These wastewater treatment devices are often integrated units, allowing for flexible and practical installation while saving space. The treated water quality typically meets discharge standards. Some wastewater treatment equipment can also be installed indoors for industrial production applications.

[0003] Existing small-scale wastewater treatment devices mostly rely on filters or screens for filtration. Over time, these screens accumulate dirt and grime, easily causing blockages. Regular manual cleaning is necessary. Furthermore, most screens and filters can only filter impurities that meet their specifications; the filtered water still contains some impurities. These impurities can become trapped inside the device during flow, affecting its cleanliness and requiring regular manual cleaning – a labor-intensive and time-consuming process. Therefore, this invention provides a high-efficiency wastewater treatment device to meet these needs. Summary of the Invention

[0004] To address the above problems, the present invention provides a high-efficiency wastewater treatment device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency sewage treatment device, comprising a cylindrical outer shell, a rotatable drum filter screen on the inner side of the outer shell, and multiple water pipes equidistantly distributed along a circumferential trajectory on the outer periphery of the drum filter screen. Each water pipe is equipped with a set of nozzles arranged from front to back. As the drum filter screen rotates, the multiple water pipes located outside the drum filter screen rotate synchronously, and the multiple sets of nozzles adjust their relative angle with the drum filter screen.

[0006] The inner side of the drum filter screen is provided with multiple rotating rods arranged at equal intervals along a circumferential trajectory. Each rotating rod is provided with multiple scrapers on its outer side. When multiple water pipes rotate synchronously, the multiple rotating rods located inside the drum filter screen rotate synchronously to transfer the dirt inside the drum filter screen.

[0007] Furthermore, the inner side of the outer shell is fixed with a symmetrically distributed first partition and a second partition, and a cover plate is installed at the front and rear openings of the outer shell. The drum filter screen is located in the relative space between the first partition and the second partition, and both ends of the drum filter screen are rotatably connected to the first partition and the second partition through the first end plate and the second end plate, respectively.

[0008] Furthermore, a water pipe is installed on the outside of the cover plate located on the front side, and the first partition plate is provided with a through hole through which the water pipe can pass.

[0009] A drain outlet is fixed on the outer shell. The drain outlet is located between the first partition and the second partition, and is located directly below the drum filter screen. Wastewater falling through the water inlet pipe falls into the inside of the drum filter screen, passes through the drum filter screen, and is discharged to the outside of the outer shell through the drain outlet.

[0010] Furthermore, both the first end plate and the second end plate are fixed with external gear rings that can rotate synchronously with them. Both the first partition plate and the side of the second partition plate away from the drum filter screen are rotatably mounted with drive gears that mesh with the external gear rings. The two drive gears are connected by a drive shaft. Both ends of the drive shaft are rotatably mounted with the cover plate. A driver adapted to the drive shaft is installed outside the cover plate. When the two drive gears distributed in the front and rear rotate synchronously, the two external gear rings, the first end plate, the second end plate and the drum filter screen rotate synchronously.

[0011] Furthermore, a linkage internal gear ring is meshed with the outer periphery of the drive gear located behind the second partition. The linkage internal gear ring is rotatably connected to the second partition via a guide rail, and multiple linkage gears are meshed with the inner side of the linkage internal gear ring, which is equidistantly arranged along a circumferential trajectory. The rear ends of multiple water pipes are respectively connected to the central axis of multiple linkage gears, and the water pipes are rotatably installed with the first partition and the second partition. As the linkage internal gear ring rotates, multiple linkage gears, multiple water pipes, and multiple sets of nozzles rotate synchronously around the central axis of the linkage gears.

[0012] Furthermore, each of the first linkage gears is connected to a second linkage gear via a synchronous shaft. The second linkage gear is meshed with a synchronous gear on the side near the center of the second partition. The rear ends of the multiple rotating rods are respectively connected to the central shaft of the multiple synchronous gears, and the rotating rods are rotatably installed with the first partition and the second partition. When the multiple first linkage gears and second linkage gears rotate synchronously, the multiple synchronous gears, the multiple rotating rods, and the multiple sets of scrapers rotate in the opposite direction to the water pipe.

[0013] Furthermore, each of the linked internal gear rings is fixedly connected to an extension frame. The extension frame is located behind the second linked gear, and a connecting rod is installed at the central axis position of each extension frame. The connecting rod is rotatably installed with the second partition plate, and the connecting rod extends to the inner side of the first partition plate and the second partition plate.

[0014] Multiple first cleaning plates are fixedly connected to the connecting rod and are equidistantly distributed along a circular trajectory. The first cleaning plates are in contact with the second partition. When the linkage internal gear ring rotates, the extension frame and the connecting rod rotate synchronously, and the first cleaning plates rotate on the surface of the second partition.

[0015] Furthermore, each of the connecting rods near the first partition is fixed with multiple extension rods that are equidistantly distributed along a circular trajectory. Each extension rod is fixed with a second cleaning plate, which is in contact with the first partition. The extension rods and the second cleaning plates are distributed around the outer periphery of the water pipe.

[0016] In summary, the technical effects and advantages of this invention are as follows:

[0017] 1. As the drum filter screen rotates continuously, its outer surface constantly contacts multiple water pipes and nozzles. The water sprayed from the nozzles impacts the inner side of the screen, causing dirt inside the drum filter screen to detach and fall off. This effectively prevents blockage caused by dirt accumulating on the inner side of the screen for a long time, ensuring that gaps remain on the screen for wastewater to pass through, thus improving the efficiency of wastewater filtration. Simultaneously, it enhances the cleaning intensity of dirt inside the screen body, promoting rapid dirt removal.

[0018] 2. This invention expands the cleaning range of the screen by the water jet from a single set of nozzles. Even before the section of the drum filter screen with accumulated dirt rotates to face the water pipe and nozzle, the water jet from the nozzle can already clean the dirt inside that section of the screen. The sprayed water also cleans the inner wall of the outer casing, improving its cleanliness over long-term use and reducing the frequency and workload of manual cleaning.

[0019] 3. In this invention, while the water sprayed from the nozzle impacts the impurities inside the drum filter screen, multiple rotating rods on the inside of the drum filter screen rotate synchronously, transferring the dirt inside the drum filter screen. This effectively prevents some stubborn impurities from sticking to the screen surface of the drum filter screen, improving the cleaning effect of dirt and further improving the quality of sewage filtration operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the outer shell of the present invention after being cut open.

[0023] Figure 3 This is a schematic diagram showing the relative positions of the drum filter screen, water pipe, and nozzle of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the drum filter screen of the present invention after being cut open.

[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0026] Figure 6 This is a schematic diagram showing the relative positions of the water pipe, nozzle, rotating rod, scraper, and first cleaning plate after the drum filter screen of the present invention has been cut open.

[0027] Figure 7 This is a schematic diagram of the pipe, nozzle, rotating rod, scraper, and second cleaning plate of the present invention.

[0028] Figure 8 This is a schematic diagram of the connection structure between the external gear ring and the drive gear of the present invention.

[0029] Figure 9 This is a schematic diagram of the connection structure of the internal gear ring, linkage gear one, linkage gear two and synchronous gear of the present invention.

[0030] In the diagram: 1. Outer shell; 11. First partition plate; 12. Second partition plate; 13. Cover plate; 14. Water inlet pipe; 15. Drain outlet; 16. Driver; 2. Drum filter screen; 21. First end plate; 22. Second end plate; 23. External gear ring; 3. Drive gear; 31. Linkage internal gear ring; 32. Drive shaft; 33. Extension frame; 4. Water pipe; 41. Linkage gear one; 42. Synchronous shaft; 43. Linkage gear two; 44. Synchronous gear; 5. Nozzle; 6. Rotating rod; 7. Scraper; 8. Connecting rod; 81. Extension rod; 9. First cleaning plate; 10. Second cleaning plate. Detailed Implementation

[0031] 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.

[0032] Example 1: Reference Figure 1 , Figure 2The illustrated high-efficiency wastewater treatment device includes a cylindrical outer shell 1. A rotatable drum filter screen 2 is located inside the outer shell 1. Multiple water pipes 4 are equidistantly distributed along a circumferential trajectory around the outer periphery of the drum filter screen 2. Each water pipe 4 is equipped with a set of nozzles 5 arranged from front to back. In actual use, the drum filter screen 2 rotates continuously inside the outer shell 1. Under the influence of gravity and hydraulic force, the liquid in the wastewater permeates through the gaps in the screen mesh to the outside of the drum filter screen 2 and is discharged. Solid impurities in the wastewater (such as suspended solids and residues) are trapped on the screen surface because their particle size is larger than the screen mesh aperture.

[0033] As the drum filter screen 2 rotates continuously, its outer surface comes into contact with multiple water pipes 4 and multiple sets of nozzles 5. The water sprayed from the nozzles 5 can pass through the screen of the drum filter screen 2, generating an impact force on the inner side of the screen 4. This causes the dirt inside the drum filter screen 2 to detach from the screen and fall down, effectively avoiding the blockage caused by dirt covering the inner side of the screen for a long time. This ensures that there are always gaps on the screen of the drum filter screen 2 that allow sewage to pass through, thus improving the efficiency of sewage filtration.

[0034] In this embodiment, as Figure 3 As shown, there are 3 water pipes 4 and 3 sets of corresponding nozzles 5. During the rotation of the drum filter screen 2, as the drum filter screen 2 rotates continuously, the screen body can continuously come into contact with the high-pressure water flow sprayed by the three sets of nozzles 5, thereby improving the cleaning intensity of the dirt inside the screen body and promoting the dirt to fall off quickly.

[0035] Furthermore, in this invention, as the drum filter screen 2 rotates, multiple water pipes 4 rotate synchronously on the outside of the drum filter screen 2, and multiple sets of nozzles 5 adjust their relative angles to the drum filter screen 2. Therefore, as the drum filter screen 2 continues to rotate, the multiple sets of nozzles 5 can adjust the direction of the high-pressure water jets they spray, which can expand the cleaning range of the screen by the water jets from a single set of nozzles 5. Before the part of the drum filter screen 2 with a lot of dirt accumulated has rotated to the position directly opposite the water pipes 4 and nozzles 5, the water jets from the nozzles 5 can already clean the dirt on the inner side of that part of the screen.

[0036] During the sewage discharge process, the drum filter screen 2 can only filter dirt that meets its filtration specifications. A small amount of impurities remain inside the filtered water. These impurities tend to adhere to the inner wall of the outer shell 1 as the water is discharged to the outside of the outer shell 1. With the long-term sewage treatment work, the accumulated impurities can easily contaminate the outer shell 1.

[0037] like Figure 4As shown, in this invention, multiple sets of nozzles 5 can adjust the direction of the high-pressure water jets they spray. As each set of nozzles 5 rotates continuously, the sprayed water has a cleaning effect on the inner wall of the outer casing 1, allowing the water to continuously rinse the inner wall of the outer casing 1, causing impurities to fall off quickly and be discharged with the water for subsequent purification steps. In this process, the cleanliness of the outer casing 1 is improved during long-term use, reducing the frequency and workload of manual cleaning.

[0038] Furthermore, the inner side of the drum filter screen 2 is provided with multiple rotating rods 6 equidistantly arranged along a circumferential trajectory, and multiple scrapers 7 are provided on the outer side of each rotating rod 6. In this invention, the multiple rotating rods 6 correspond one-to-one with multiple water pipes 4. When the multiple water pipes 4 rotate synchronously and the water sprayed from the nozzles 5 impacts the impurities inside the drum filter screen 2, the multiple rotating rods 6 rotate synchronously on the inner side of the drum filter screen 2, transferring the dirt on the inner side of the drum filter screen 2. In this process, it can effectively prevent some stubborn impurities from accumulating on the screen surface of the drum filter screen 2, improve the cleaning effect of dirt, and further improve the quality of sewage filtration operation.

[0039] like Figure 1 , Figure 2 As shown, a first partition 11 and a second partition 12 are symmetrically distributed on the inner side of the outer casing 1. The arrangement of the first partition 11 and the second partition 12 can prevent sewage from overflowing to the outside of the drum filter screen 2. Cover plates 13 are installed at the front and rear openings of the outer casing 1. The drum filter screen 2 is located in the relative space between the first partition 11 and the second partition 12, and both ends of the drum filter screen 2 are rotatably connected to the first partition 11 and the second partition 12 through the first end plate 21 and the second end plate 22, respectively. After opening the cover plate 13, the first end plate 21 can be easily removed, thereby allowing the transfer of dirt inside the drum filter screen 2.

[0040] like Figure 3 , Figure 4 As shown, a water inlet pipe 14 is installed on the outside of the cover plate 13 on the front side, and a through hole is provided on the first partition plate 11 for the water inlet pipe 14 to pass through. A drain outlet 15 is fixed on the outer shell 1. The drain outlet 15 is located between the first partition plate 11 and the second partition plate 12, and is located directly below the drum filter screen 2. The sewage falling through the water inlet pipe 14 falls into the inside of the drum filter screen 2, passes through the drum filter screen 2, and is discharged to the outside of the outer shell 1 through the drain outlet 15.

[0041] like Figure 4 , Figure 5As shown, both the first end plate 21 and the second end plate 22 are fixed with external gear rings 23 that can rotate synchronously with them. On the side of the first partition plate 11 and the second partition plate 12 away from the drum filter screen 2, drive gears 3 that mesh with the external gear rings 23 are rotatably mounted. The two drive gears 3 are connected by a drive shaft 32. Both ends of the drive shaft 32 are rotatably mounted to the cover plate 13. A driver 16 adapted to the drive shaft 32 is mounted outside the cover plate 13. (See [reference]). Figure 8 As shown.

[0042] When the driver 16 drives the drive shaft 32 and the two drive gears 3 distributed in front and behind to rotate synchronously, under the meshing force of the drive gear 3 and the external gear ring 23, the two external gear rings 23, the first end plate 21 and the second end plate 22 rotate synchronously to drive the drum filter screen 2 to rotate, so that its outer surface continuously contacts multiple water pipes 4 and multiple sets of nozzles 5, causing the dirt inside the drum filter screen 2 to fall off the screen.

[0043] like Figure 4 , Figure 5 As shown, the drive gear 3 located behind the second partition 12 is meshed with a linkage internal gear ring 31 on its outer periphery. The linkage internal gear ring 31 is rotatably connected to the second partition 12 via a guide rail. Multiple linkage gears 41 are meshed with the inner side of the linkage internal gear ring 31 and are arranged at equal intervals along a circular trajectory. The rear ends of multiple water pipes 4 are respectively connected to the central shaft position of multiple linkage gears 41, and the water pipes 4 are rotatably installed with the first partition 11 and the second partition 12.

[0044] When the driver 16 drives the drive shaft 32 and the two drive gears 3 distributed in front and rear to rotate synchronously, under the meshing force of the drive gear and the linkage internal gear ring 31 and the linkage internal gear ring 31 and the linkage gear 41, the linkage internal gear ring 31 rotates synchronously, thereby enabling multiple linkage gears 41, multiple water pipes 4 and multiple sets of nozzles 5 to rotate synchronously around the central axis of the linkage gear 41, so as to expand the spray range of the nozzles 5 and perform cleaning operation on the inner wall of the outer casing 1.

[0045] like Figure 4 , Figure 5 As shown, each of the first linkage gears 41 is connected to a second linkage gear 43 via a synchronous shaft 42. Each second linkage gear 43 is meshed with a synchronous gear 44 on the side near the center of the second partition 12. The rear ends of multiple rotating rods 6 are connected to the central shaft positions of multiple synchronous gears 44, and all rotating rods 6 are rotatably mounted to the first partition 11 and the second partition 12. (See attached diagram) Figure 9 As shown.

[0046] Therefore, as the first linkage gear 41 rotates, under the connecting force of the synchronous shaft 42, multiple first linkage gears 41 and second linkage gear 43 can rotate synchronously. Under the connecting action of the second linkage gear 43 and the synchronous gear 44, multiple synchronous gears 44, multiple rotating rods 6 and multiple sets of scrapers 7 can rotate in the opposite direction to the water pipe 4, so as to cooperate with the nozzle 5 and transfer the dirt inside the drum filter screen 2.

[0047] Example 2: Based on Example 1, such as Figure 6 As shown, each of the internal gear rings 31 is fixedly connected to an extension frame 33. The extension frame 33 is located behind the second gear 43, and a connecting rod 8 is installed at the central axis of each extension frame 33. The connecting rod 8 is rotatably mounted to the second partition plate 12, and the connecting rod 8 extends to the inner side of the first partition plate 11 and the second partition plate 12. Multiple first cleaning plates 9 are fixedly connected to the connecting rod 8, which are equidistantly distributed along a circumferential trajectory. The first cleaning plates 9 are in contact with the second partition plate 12.

[0048] Therefore, when the linkage internal gear ring 31 rotates, the extension frame 33 and the connecting rod 8 rotate synchronously, and the first cleaning plate 9 rotates on the surface of the second partition 12. The first cleaning plate 9 can continuously clean the dirt accumulated on the side of the second partition 12 facing the sewage, promote the dirt to fall off quickly, and prevent the dirt from adhering to and hardening on the surface of the second partition 12.

[0049] like Figure 7 As shown, multiple extension rods 81, evenly distributed along a circular trajectory, are fixed to one end of the connecting rod 8 near the first partition 11. A second cleaning plate 10 is fixed to each extension rod 81, and the second cleaning plate 10 is in contact with the first partition 11. During rotation, the second cleaning plate 10 continuously cleans the dirt accumulated on the side of the first partition 11 facing the sewage, promoting rapid dirt removal and preventing dirt from adhering to or hardening on the surface of the first partition 11.

[0050] Meanwhile, based on the combined arrangement of the extension rod 81 and the second cleaning plate 10, the extension rod 81 and the second cleaning plate 10 can be distributed around the outer periphery of the water inlet pipe 14, which can avoid the water flow falling through the water inlet pipe 14 and not affect the flow and fall of sewage.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency wastewater treatment device, comprising a cylindrical outer shell (1), characterized in that: The inner side of the outer shell (1) is provided with a rotatable drum filter screen (2). The outer periphery of the drum filter screen (2) is provided with multiple water pipes (4) distributed at equal intervals along the circumferential trajectory. Each water pipe (4) is provided with a set of nozzles (5) arranged from front to back. As the drum filter screen (2) rotates, the multiple water pipes (4) located outside the drum filter screen (2) rotate synchronously, and the multiple sets of nozzles (5) adjust their relative angle with the drum filter screen (2). The inner side of the drum filter screen (2) is provided with multiple rotating rods (6) arranged at equal intervals along the circumference. The outer side of each rotating rod (6) is provided with multiple scrapers (7). When multiple water pipes (4) rotate synchronously, multiple rotating rods (6) rotate synchronously inside the drum filter screen (2) to transfer dirt inside the drum filter screen (2).

2. The wastewater high-efficiency treatment device according to claim 1, characterized in that: The inner side of the outer shell (1) is fixed with a first partition (11) and a second partition (12) that are symmetrically distributed, and a cover plate (13) is installed at the front and rear openings of the outer shell (1). The drum filter screen (2) is located in the relative space between the first partition (11) and the second partition (12), and the two ends of the drum filter screen (2) are rotatably connected to the first partition (11) and the second partition (12) through the first end plate (21) and the second end plate (22) respectively.

3. The high-efficiency wastewater treatment device according to claim 2, characterized in that: A water pipe (14) is installed on the outside of the cover plate (13) located on the front side, and the first partition plate (11) is provided with a through hole through which the water pipe (14) can pass; The outer shell (1) is fixed with a drain outlet (15). The drain outlet (15) is located between the first partition (11) and the second partition (12), and the drain outlet (15) is located directly below the drum filter screen (2). The sewage falling through the water pipe (14) falls into the inside of the drum filter screen (2), passes through the drum filter screen (2), and is discharged to the outside of the outer shell (1) through the drain outlet (15).

4. The high-efficiency wastewater treatment device according to claim 3, characterized in that: The first end plate (21) and the second end plate (22) are each fixed with an external gear ring (23) that can rotate synchronously with it. The first partition plate (11) and the second partition plate (12) are each rotatably mounted with a drive gear (3) that meshes with the external gear ring (23) on the side away from the drum filter screen (2). The two drive gears (3) are connected by a drive shaft (32). Both ends of the drive shaft (32) are rotatably mounted with a cover plate (13). The cover plate (13) is equipped with a driver (16) that is compatible with the drive shaft (32). When the two drive gears (3) distributed in the front and rear rotate synchronously, the two external gear rings (23), the first end plate (21), the second end plate (22) and the drum filter screen (2) rotate synchronously.

5. The high-efficiency wastewater treatment device according to claim 4, characterized in that: The drive gear (3) located behind the second partition (12) is meshed with a linkage internal gear ring (31) on its outer periphery. The linkage internal gear ring (31) is rotatably connected to the second partition (12) through a guide rail. Multiple linkage gears (41) are meshed on the inner side of the linkage internal gear ring (31) and are equidistantly arranged along the circumferential trajectory. The rear ends of multiple water pipes (4) are respectively connected to the central axis of multiple linkage gears (41). The water pipes (4) are rotatably installed with the first partition (11) and the second partition (12). As the linkage internal gear ring (31) rotates, multiple linkage gears (41), multiple water pipes (4) and multiple sets of nozzles (5) rotate synchronously around the central axis of the linkage gear (41).

6. The high-efficiency wastewater treatment device according to claim 5, characterized in that: The first linkage gear (41) is connected to the second linkage gear (43) via a synchronous shaft (42). The second linkage gear (43) is meshed with a synchronous gear (44) on the side near the center of the second partition (12). The rear ends of the multiple rotating rods (6) are connected to the central shaft of the multiple synchronous gears (44). The rotating rods (6) are rotatably installed with the first partition (11) and the second partition (12). When the multiple linkage gears (41) and the second linkage gear (43) rotate synchronously, the multiple synchronous gears (44), the multiple rotating rods (6) and the multiple scrapers (7) rotate in the opposite direction to the water pipe (4).

7. The high-efficiency wastewater treatment device according to claim 5, characterized in that: An extension frame (33) is fixedly connected to the rear of each of the linkage internal gear rings (31). The extension frame (33) is located behind the linkage gear two (43), and a connecting rod (8) is installed at the central axis position of each extension frame (33). The connecting rod (8) is rotatably installed with the second partition plate (12), and the connecting rod (8) extends to the inner side of the first partition plate (11) and the second partition plate (12). Multiple first cleaning plates (9) are fixedly connected to the connecting rod (8) and are equidistantly distributed along the circumferential trajectory. The first cleaning plates (9) are in contact with the second partition (12). When the linkage internal gear ring (31) rotates, the extension frame (33) and the connecting rod (8) rotate synchronously, and the first cleaning plates (9) rotate on the surface of the second partition (12).

8. The high-efficiency wastewater treatment device according to claim 7, characterized in that: Multiple extension rods (81) are fixed at one end of the connecting rod (8) near the first partition (11), and a second cleaning plate (10) is fixed on each extension rod (81). The second cleaning plate (10) is in contact with the first partition (11), and the extension rods (81) and the second cleaning plate (10) are distributed on the outer periphery of the water pipe (14).

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