Sewage treatment system for relieving pipeline siltation

By setting up a combination device of limit rods, moving rings and scrapers in the pipeline, the problems of low efficiency and environmental pollution of traditional cleaning methods are solved, and efficient cleaning of pipeline silt is achieved, which is suitable for long-term treatment.

CN120291612AInactive Publication Date: 2025-07-11SHANDONG XIANGKUN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202510709879.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2025-07-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional pipeline cleaning methods such as manual cleaning and chemical cleaning have problems such as high cost, low efficiency or environmental pollution, which are difficult to effectively solve the problem of pipeline siltation.

Method used

A system for alleviating sewage treatment for pipe siltation is adopted, including limit rods, moving rings, drive components, scrapers and adjustment components in the pipeline. The driving components drive the moving rings and scrapers to move along the length of the pipeline, and the adjustment components are used to adjust the scraper position to achieve efficient cleaning of sediments in the inner wall of the pipeline.

Benefits of technology

It has achieved efficient cleaning of sediments in the inner wall of the pipeline, avoided pipeline blockage, and is suitable for long-term treatment without affecting sewage circulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a sewage treatment system for relieving pipeline siltation, and belongs to the field of sewage treatment systems.The sewage treatment system comprises a pipeline and an inspection well, a limiting rod is fixedly arranged in the pipeline in a penetrating mode, the limiting rod is arranged along the center line of the pipeline, and the periphery of the limiting rod is sleeved with a moving ring; a driving assembly used for driving the moving ring to reciprocate in the length direction of the limiting rod is arranged in the pipeline, the peripheral face of the moving ring is sleeved with a connecting ring, a connecting rod is fixed to the peripheral face of the connecting ring, and a scraping plate attached to the inner wall of the pipeline is installed at the end, away from the connecting ring, of the connecting rod. The pipeline is provided with an adjusting assembly used for adjusting the position of the connecting rod. The pipeline cleaning device is high in cleaning efficiency, cannot hinder circulation of sewage in the pipeline, and is suitable for long-term treatment of the pipeline.
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Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment systems, and in particular to a sewage treatment system for alleviating pipeline siltation. Background Art

[0002] With the rapid development of industrialization and urbanization, the role of sewage pipe systems in urban drainage and sewage treatment is becoming increasingly important. However, as time goes by, a large amount of solid particles, sediments and organic matter often accumulate in the pipes, forming pipe siltation. These silts not only reduce the water flow capacity of the pipes, but may also cause pipe blockage, overflow and other problems, affecting the normal discharge of sewage and even causing environmental pollution and health crises.

[0003] Traditional pipeline cleaning methods, such as manual cleaning and chemical cleaning, can alleviate the problem of pipeline siltation to a certain extent, but most methods have certain limitations. For example, manual cleaning is costly, inefficient, and causes great damage to the pipeline; although chemical cleaning can remove dirt more thoroughly, the chemicals used may cause secondary pollution to the environment, and both manual cleaning and chemical cleaning are silt removal operations performed when there is a lot of sediment in the pipeline, which is not suitable for long-term management of the pipeline. Summary of the invention

[0004] In order to improve the problem that pipe siltation is difficult to clean, the present application provides a sewage treatment system to alleviate pipe siltation.

[0005] The present application provides a sewage treatment system for alleviating pipeline siltation, which adopts the following technical solutions: A sewage treatment system for alleviating pipeline siltation comprises a pipeline and an inspection well, wherein a fixed limit rod is passed through the pipeline, the limit rod is arranged along the center line of the pipeline, a movable ring is sleeved on the outer circumference of the limit rod, a driving component for driving the movable ring to reciprocate along the length direction of the limit rod is arranged in the pipeline, a connecting ring is sleeved on the outer circumference of the movable ring, a connecting rod is fixed on the outer circumference of the connecting ring, a scraper that fits the inner wall of the pipeline is installed at one end of the connecting rod away from the connecting ring, and an adjusting component for adjusting the position of the connecting rod is arranged on the pipeline.

[0006] By adopting the above technical solution, the scraper is fitted against the inner wall of the pipe, and the driving component is used to drive the moving ring to move along the length direction of the pipe. The moving ring drives the scraper to move synchronously, so that the scraper can clean the sediment attached to the inner wall of the pipe, so that the sediment is not easily accumulated on the inner wall of the pipe. The position of the scraper can be adjusted by using the adjusting component, so that the scraper can comprehensively clean the inner wall of the pipe, with high cleaning efficiency, and will not hinder the circulation of sewage in the pipe. It is suitable for long-term management of the pipe.

[0007] Preferably, a limiting groove is formed on the outer peripheral surface of the limiting rod. The limiting groove is located on the outer arc surface of the limiting rod. A moving block is fixed on the inner peripheral surface of the moving ring. The moving block is slidably engaged with the limiting rod along the length direction of the limiting rod through the limiting groove. The driving assembly includes a pulling rope fixed to the side surface of the moving block. The pulling rope is located in the limiting groove and is in contact with the inner arc surface of the limiting groove. Reeling sleeves are respectively fixed on both sides of the pipeline. One end of the pulling rope away from the moving block is fixedly connected to the outer peripheral surface of the reeling sleeve. Stepping motors are installed on both sides of the pipeline, and the output end of the stepping motor is fixedly connected to the end of the reeling sleeve.

[0008] By adopting the above technical solution, the two stepping motors rotate in opposite directions, so that the pulling ropes on both sides of the moving block are one retracted and one released, thereby driving the moving block to slide in the limiting groove. And the pulling rope is in contact with the inner arc surface of the limiting groove, so that the pulling rope is kept in a tensioned state, and thus the sliding of the moving block in the limiting groove is more stable.

[0009] Preferably, a plurality of positioning grooves are formed on the outer peripheral surface of the moving ring. The plurality of positioning grooves are arranged at equal intervals along the circumferential direction of the moving ring. A clamping groove is formed on the inner peripheral surface of the connecting ring. A clamping block is slidably installed on the connecting ring along its radial direction through the clamping groove, and the clamping block can be inserted into the positioning groove.

[0010] By adopting the above technical solution, the clamping block is inserted into the positioning groove, so that the moving ring and the connecting ring are clamped and fixed, thereby restricting the position of the scraping plate.

[0011] Preferably, a slider is fixed on the side surface of the clamping block. A sliding groove is formed on the inner wall of the clamping groove. The slider is slidably engaged with the connecting ring along the radial direction of the connecting ring through the sliding groove. A first spring is fixed to the side surface of the slider away from the moving ring. One end of the first spring away from the slider is fixedly connected to the inner wall of the sliding groove.

[0012] By adopting the above technical solution, when the clamping block is aligned with the positioning groove, the clamping block moves towards the direction close to the moving ring under the elastic force of the first spring and is inserted into the corresponding positioning groove.

[0013] Preferably, the connecting rod includes a connecting block fixed to the outer peripheral surface of the connecting ring. A pressing groove communicating with the clamping groove is formed on the side surface of the connecting block. The connecting block is slidably mounted with a pressing block along the thickness direction of the connecting ring through the pressing groove. A clamping through groove for passing through the pressing block is formed on the side surface of the clamping block. A first inclined surface is provided on the inner wall of the clamping through groove away from the moving ring. A second inclined surface for fitting with the first inclined surface is provided on the side surface of the pressing block close to the clamping block. A fixing ring is sleeved and fixed at one end of the limiting rod, and the fixing ring can abut against the pressing block.

[0014] By adopting the above technical solution, when the position of the scraping plate needs to be adjusted, the clamping block needs to be disengaged from the positioning groove first. When the connecting ring moves in the direction close to the fixing ring, the pressing block abuts against the fixing ring and moves in the direction close to the clamping block, so that the first inclined surface and the second inclined surface abut against each other, thereby pushing the clamping block to move in the direction away from the moving ring, so that the clamping block disengages from the positioning groove.

[0015] Preferably, the adjusting assembly includes a rotating ring rotatably mounted on the inner wall of the pipeline and a rotating member for controlling the rotation of the rotating ring. The rotating ring is arranged close to the fixing ring. An adjusting groove for inserting the scraping plate is formed on the inner wall of the rotating ring. The inner wall of the adjusting groove away from the fixing ring is coplanar with the inner peripheral surface of the pipeline.

[0016] By adopting the above technical solution, when the scraping plate moves in the direction close to the fixing ring and the connecting ring abuts against the fixing ring, the scraping plate is inserted into the adjusting groove. At this time, the clamping block disengages from the positioning groove. The rotating member is used to drive the rotating ring to rotate, and the rotating ring drives the scraping plate to move through the adjusting groove, so as to adjust the position of the scraping plate. After the position adjustment is completed, the connecting ring moves in the direction away from the fixing ring, and the clamping block is inserted into another positioning groove under the elastic force of the first spring.

[0017] Preferably, the rotating member includes a toothed ring sleeved and fixed on the outer peripheral surface of the rotating ring. A gear is rotatably mounted on the pipeline. The gear meshes with the toothed ring. A driving motor coaxially fixed with the gear is arranged on the pipeline.

[0018] By adopting the above technical solution, the driving motor is started, the driving motor drives the gear to rotate, the gear drives the toothed ring to rotate, and the toothed ring drives the rotating ring to rotate.

[0019] Preferably, a reset block is fixed on the side surface of the pressing block. A reset groove is formed on the inner wall of the pressing groove. The reset block is slidably matched with the connecting block along the thickness direction of the connecting ring through the reset groove. A reset spring is fixed on the side surface of the reset block away from the clamping block. One end of the reset spring away from the reset block is fixed to the inner wall of the reset groove.

[0020] By adopting the above technical solution, when the connecting ring moves away from the fixed block, the pressing block moves away from the pressing block under the elastic force of the reset spring, so as to facilitate the clamping block to be inserted into the corresponding positioning groove.

[0021] Preferably, a support rod is fixed to the side of the connecting block away from the moving ring, a support block is fixed to the other end of the support rod, a relief groove is formed in the side of the support block away from the support rod, the scraping plate is slidably matched with the support block along the radial direction of the pipeline through the relief groove, the side of the scraping plate close to the inner wall of the pipeline is provided with a tip, a sliding block is fixed to the side of the scraping plate, a sliding groove is formed in the inner wall of the relief groove, the sliding block is slidably matched with the support block along the radial direction of the pipeline through the sliding groove, a second spring is fixed to the side of the sliding block close to the limiting rod, and one end of the second spring away from the sliding block is fixedly connected to the inner wall of the sliding groove.

[0022] By adopting the above technical solution, the scraping plate can slide in the relief groove, so that the scraping plate is not easily damaged, and the scraping plate is abutted against the inner wall of the pipeline under the elastic force of the second spring, so as to facilitate the scraping plate to clean the sediment on the inner wall of the pipeline.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The scraping plate is attached to the inner wall of the pipeline. The driving assembly is used to drive the moving ring to move along the length direction of the pipeline, and the moving ring drives the scraping plate to move synchronously, so as to facilitate the scraping plate to clean the sediment attached to the inner wall of the pipeline, so that the sediment is not easily accumulated on the inner wall of the pipeline. The adjusting assembly can be used to adjust the position of the scraping plate, so as to facilitate the scraping plate to comprehensively clean the inner wall of the pipeline. The cleaning efficiency is high, and it will not hinder the flow of sewage in the pipeline; 2. The two stepping motors rotate in opposite directions, so that the first ropes on both sides of the moving block are taken in and released, thereby driving the moving block to slide in the limiting groove, and the ropes are attached to the inner arc surface of the limiting groove, so that the ropes are kept in a tensioned state, and further the sliding of the moving block in the limiting groove is more stable; 3. When the position of the scraping plate needs to be adjusted, the clamping block needs to be disengaged from the positioning groove first. When the connecting ring moves towards the fixed ring, the pressing block abuts against the fixed ring and moves towards the clamping block, so that the first inclined surface and the second inclined surface abut against each other, and then the clamping block is pushed to move away from the moving ring, so that the clamping block is disengaged from the positioning groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the sewage treatment system for alleviating pipeline siltation in the embodiment of the present application.

[0025] Figure 2It is a cross-sectional view of the pipeline and inspection well in the sewage treatment system for alleviating pipeline siltation according to an embodiment of the present application.

[0026] Figure 3 It is a schematic structural diagram of the limiting rod and the moving ring in the sewage treatment system for alleviating pipeline siltation according to an embodiment of the present application.

[0027] Figure 4 It is a cross-sectional view of the connecting ring and the connecting rod in the sewage treatment system for alleviating pipeline siltation according to an embodiment of the present application.

[0028] Figure 5 It is a cross-sectional view of the connecting block in the sewage treatment system for alleviating pipeline siltation according to an embodiment of the present application.

[0029] Figure 6 It is a schematic structural diagram of the rotating ring and the scraping plate in the sewage treatment system for alleviating pipeline siltation according to an embodiment of the present application.

[0030] Reference numerals: 1, pipeline; 11, inspection well; 12, fixing frame; 13, limiting rod; 131, limiting groove; 14, winding sleeve; 15, stepping motor; 16, fixing ring; 2, moving ring; 21, moving block; 22, pulling rope; 23, positioning groove; 3, connecting ring; 31, clamping block; 32, clamping groove; 33, slider; 34, sliding groove; 35, first spring; 36, clamping through groove; 37, first inclined surface; 4, connecting rod; 41, connecting block; 42, support rod; 43, support block; 44, relief groove; 45, scraping plate; 46, sliding block; 47, sliding groove; 48, second spring; 5, pressing block; 51, pressing groove; 52, second inclined surface; 53, reset block; 54, reset groove; 55, reset spring; 6, rotating ring; 61, adjusting groove; 62, gear ring; 63, gear; 64, driving motor. Detailed implementation manners

[0031] The following will further describe the present application in detail with reference to the Figures 1-6 drawings.

[0032] An embodiment of the present application discloses a sewage treatment system for alleviating pipeline siltation. Referring to Figure 1 and Figure 2 , the sewage treatment system for alleviating pipeline siltation includes a pipeline 1, and inspection wells 11 are respectively arranged on both sides of the pipeline 1. A fixing frame 12 is fixed in the inspection well 11, and a limiting rod 13 is fixed between the two fixing frames 12. The limiting rod 13 passes through the pipeline 1, and the limiting rod 13 is arranged along the central line of the pipeline 1.

[0033] Referring to Figure 2 and Figure 3, a limiting groove 131 is formed on the outer peripheral surface of the limiting rod 13, and the limiting groove 131 is located on the outer arc surface of the limiting rod 13. A moving ring 2 is sleeved on the outer periphery of the limiting rod 13, and a moving block 21 is fixed on the inner peripheral surface of the moving ring 2. The moving block 21 is slidably engaged with the limiting rod 13 along the length direction of the limiting rod 13 through the limiting groove 131. A pull rope 22 is fixed on the side surface of the moving block 21. The pull rope 22 is located in the limiting groove 131, and the pull rope 22 is attached to the inner arc surface of the limiting groove 131. Winding sleeves 14 are fixed on the fixing frames 12, and one end of the pull rope 22 away from the moving block 21 is fixedly connected to the outer peripheral surface of the winding sleeve 14. Stepping motors 15 are installed on both sides of the pipeline 1, and the output ends of the stepping motors 15 are fixedly connected to the ends of the winding sleeves 14. A connecting ring 3 is sleeved on the outer peripheral surface of the moving ring 2, a connecting rod 4 is fixed on the outer peripheral surface of the connecting ring 3, and a scraping plate 45 that fits against the inner wall of the pipeline 1 is installed at one end of the connecting rod 4 away from the connecting ring 3.

[0034] The scraping plate 45 is in contact with the inner wall of the pipeline 1. The two stepping motors 15 rotate in opposite directions, so that the pull ropes 22 on both sides of the moving block 21 are respectively taken in and released, thereby driving the moving block 21 to slide in the limiting groove 131. And the pull rope 22 is attached to the inner arc surface of the limiting groove 131, so that the pull rope 22 is kept in a tensioned state, thereby making the sliding of the moving block 21 in the limiting groove 131 more stable. The moving ring 2 drives the scraping plate 45 to move synchronously, so as to facilitate the scraping plate 45 to clean the sediments attached to the inner wall of the pipeline 1, so that the sediments are not easily accumulated on the inner wall of the pipeline 1.

[0035] Refer to Figure 4 , a plurality of positioning grooves 23 are formed on the outer peripheral surface of the moving ring 2, and the plurality of positioning grooves 23 are arranged at equal intervals along the circumferential direction of the moving ring 2. A clamping groove 32 is formed on the inner peripheral surface of the connecting ring 3. The connecting ring 3 is slidably installed with a clamping block 31 along its own radial direction through the clamping groove 32, and the clamping block 31 can be inserted into the positioning groove 23. The clamping block 31 is inserted into the positioning groove 23, so that the moving ring 2 and the connecting ring 3 are clamped and fixed, thereby restricting the position of the scraping plate 45. A slider 33 is fixed on the side surface of the clamping block 31, a sliding groove 34 is formed on the inner wall of the clamping groove 32, and the slider 33 is slidably engaged with the connecting ring 3 along the radial direction of the connecting ring 3 through the sliding groove 34. A first spring 35 is fixed on the side surface of the slider 33 away from the moving ring 2, and one end of the first spring 35 away from the slider 33 is fixedly connected to the inner wall of the sliding groove 34. When the clamping block 31 is aligned with the positioning groove 23, the clamping block 31 moves towards the direction close to the moving ring 2 under the elastic force of the first spring 35 and is inserted into the corresponding positioning groove 23.

[0036] Refer to Figure 2 , Figure 4 and Figure 5, the connecting rod 4 includes a connecting block 41 fixed to the outer peripheral surface of the connecting ring 3. A pressing groove 51 communicating with the clamping groove 32 is formed on the side surface of the connecting block 41. The connecting block 41 is slidably installed with a pressing block 5 along the thickness direction of the connecting ring 3 through the pressing groove 51. A clamping through groove 36 for passing through the pressing block 5 is formed on the side surface of the clamping block 31. A first inclined surface 37 is arranged on the inner wall of the clamping through groove 36 away from the moving ring 2. A second inclined surface 52 for fitting with the first inclined surface 37 is arranged on the side surface of the pressing block 5 close to the clamping block 31. One end of the limiting rod 13 is sleeved and fixed with a fixing ring 16, and the fixing ring 16 can abut against the pressing block 5. A reset block 53 is fixed to the side surface of the pressing block 5, and a reset groove 54 is formed on the inner wall of the pressing groove 51. The reset block 53 is slidably matched with the connecting block 41 along the thickness direction of the connecting ring 3 through the reset groove 54. A reset spring 55 is fixed to the side surface of the reset block 53 away from the clamping block 31, and one end of the reset spring 55 away from the reset block 53 is fixedly connected with the inner wall of the reset groove 54.

[0037] When the position of the scraping plate 45 needs to be adjusted, it is necessary to first disengage the clamping block 31 from the positioning groove 23. When the connecting ring 3 moves in the direction close to the fixing ring 16, the pressing block 5 abuts against the fixing ring 16 and moves in the direction close to the clamping block 31, so that the first inclined surface 37 and the second inclined surface 52 are in contact with each other, and then the clamping block 31 is pushed to move in the direction away from the moving ring 2, so that the clamping block 31 disengages from the positioning groove 23; when the connecting ring 3 moves in the direction away from the fixing block, the pressing block 5 moves in the direction away from the pressing block 5 under the elastic force of the reset spring 55 and resets.

[0038] Refer to Figure 2 and Figure 6 , a rotating ring 6 is rotatably installed on the inner wall of the pipeline 1, and the rotating ring 6 is arranged close to the fixing ring 16. A toothed ring 62 is sleeved and fixed on the outer peripheral surface of the rotating ring 6. A gear 63 is rotatably installed on the pipeline 1, and the gear 63 meshes with the toothed ring 62. A driving motor 64 coaxially fixed with the gear 63 is arranged on the pipeline 1. An adjusting groove 61 for inserting the scraping plate 45 is formed on the inner wall of the rotating ring 6, and the inner wall of the adjusting groove 61 away from the fixing ring 16 is coplanar with the inner peripheral surface of the pipeline 1.

[0039] When the scraping plate 45 moves in the direction close to the fixing ring 16 and the connecting ring 3 abuts against the fixing ring 16, the scraping plate 45 is inserted into the adjusting groove 61. At this time, the clamping block 31 disengages from the positioning groove 23. The driving motor 64 is started, and the driving motor 64 drives the gear 63 to rotate. The gear 63 drives the toothed ring 62 to rotate. The toothed ring 62 drives the rotating ring 6 to rotate. The rotating ring 6 drives the scraping plate 45 to move through the adjusting groove 61, so as to adjust the position of the scraping plate 45. After the position adjustment is completed, the connecting ring 3 moves in the direction away from the fixing ring 16, and the clamping block 31 is inserted into another positioning groove 23 under the elastic force of the first spring 35.

[0040] Referring to Figure 4 , a support rod 42 is fixed to the side of the connecting block 41 away from the moving ring 2, and the other end of the support rod 42 is fixed with a support block 43. A relief groove 44 is formed in the side of the support block 43 away from the support rod 42. The scraping plate 45 is slidably engaged with the support block 43 along the radial direction of the pipeline 1 through the relief groove 44. The side of the scraping plate 45 close to the inner wall of the pipeline 1 is set to a tip. A sliding block 46 is fixed to the side of the scraping plate 45. A sliding groove 47 is formed in the inner wall of the relief groove 44. The sliding block 46 is slidably engaged with the support block 43 along the radial direction of the pipeline 1 through the sliding groove 47. A second spring 48 is fixed to the side of the sliding block 46 close to the limiting rod 13. One end of the second spring 48 away from the sliding block 46 is fixedly connected to the inner wall of the sliding groove 47. The scraping plate 45 abuts against the inner wall of the pipeline 1 under the elastic force of the second spring 48, so as to facilitate the scraping plate 45 to clean the sediment on the inner wall of the pipeline 1.

[0041] The implementation principle of a sewage treatment system for alleviating pipeline siltation in an embodiment of the present application is as follows: The scraping plate 45 is attached to the inner wall of the pipeline 1. The two stepping motors 15 rotate in opposite directions, so that the ropes 22 on both sides of the moving block 21 are retracted and released, thereby driving the moving block 21 to slide in the limiting groove 131. And the ropes 22 are attached to the inner arc surface of the limiting groove 131, so that the ropes 22 are kept in a tensioned state, thereby making the sliding of the moving block 21 in the limiting groove 131 more stable. The moving ring 2 drives the scraping plate 45 to move synchronously, so as to facilitate the scraping plate 45 to clean the sediment attached to the inner wall of the pipeline 1, so that the sediment is not easily accumulated on the inner wall of the pipeline 1.

[0042] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sewage treatment system for alleviating pipeline siltation, characterized in that: It includes a pipeline (1) and an inspection well (11). A limiting rod (13) is fixedly inserted in the pipeline (1). The limiting rod (13) is arranged along the center line of the pipeline (1). A moving ring (2) is sleeved on the outer periphery of the limiting rod (13). A driving assembly for driving the moving ring (2) to reciprocate along the length direction of the limiting rod (13) is arranged in the pipeline (1). A connecting ring (3) is sleeved on the outer peripheral surface of the moving ring (2). A connecting rod (4) is fixed on the outer peripheral surface of the connecting ring (3). A scraping plate (45) that fits against the inner wall of the pipeline (1) is installed at one end of the connecting rod (4) away from the connecting ring (3). An adjusting assembly for adjusting the position of the connecting rod (4) is arranged on the pipeline (1).

2. The sewage treatment system for alleviating pipeline siltation according to claim 1, wherein: A limiting groove (131) is formed on the outer peripheral surface of the limiting rod (13). The limiting groove (131) is located on the outer arc surface of the limiting rod (13). A moving block (21) is fixed on the inner peripheral surface of the moving ring (2). The moving block (21) is slidably engaged with the limiting rod (13) along the length direction of the limiting rod (13) through the limiting groove (131). The driving assembly includes a pull rope (22) fixed on the side surface of the moving block (21). The pull rope (22) is located in the limiting groove (131). The pull rope (22) is in contact with the inner arc surface of the limiting groove (131). Reeling sleeves (14) are respectively fixed on both sides of the pipeline (1). One end of the pull rope (22) away from the moving block (21) is fixedly connected to the outer peripheral surface of the reeling sleeve (14). Stepping motors (15) are installed on both sides of the pipeline (1). The output end of the stepping motor (15) is fixedly connected to the end of the reeling sleeve (14).

3. The sewage treatment system for alleviating pipeline siltation according to claim 2, wherein: A plurality of positioning grooves (23) are formed on the outer peripheral surface of the moving ring (2). The plurality of positioning grooves (23) are arranged at equal intervals along the circumferential direction of the moving ring (2). A clamping groove (32) is formed on the inner peripheral surface of the connecting ring (3). The connecting ring (3) is slidably installed with a clamping block (31) along its own radial direction through the clamping groove (32). The clamping block (31) can be inserted into the positioning groove (23).

4. A sewage treatment system for alleviating pipeline siltation according to claim 3, characterized in that: A slider (33) is fixed on the side surface of the clamping block (31). A sliding groove (34) is formed on the inner wall of the clamping groove (32). The slider (33) is slidably engaged with the connecting ring (3) along the radial direction of the connecting ring (3) through the sliding groove (34). A first spring (35) is fixed on the side surface of the slider (33) away from the moving ring (2). One end of the first spring (35) away from the slider (33) is fixedly connected to the inner wall of the sliding groove (34).

5. A sewage treatment system for alleviating pipeline siltation according to claim 4, characterized in that: The connecting rod (4) includes a connecting block (41) fixed to the outer peripheral surface of the connecting ring (3). A pressing groove (51) communicating with the clamping groove (32) is formed on the side surface of the connecting block (41). The connecting block (41) is slidably installed with a pressing block (5) along the thickness direction of the connecting ring (3) through the pressing groove (51). A clamping through groove (36) for passing through the pressing block (5) is formed on the side surface of the clamping block (31). A first inclined surface (37) is provided on the inner wall of the clamping through groove (36) away from the moving ring (2). A second inclined surface (52) for fitting with the first inclined surface (37) is provided on the side surface of the pressing block (5) close to the clamping block (31). A fixing ring (16) is sleeved and fixed at one end of the limiting rod (13), and the fixing ring (16) can abut against the pressing block (5).

6. The sewage treatment system for alleviating pipeline siltation according to claim 5, characterized in that: The adjusting assembly includes a rotating ring (6) rotatably installed on the inner wall of the pipeline (1) and a rotating member for controlling the rotation of the rotating ring (6). The rotating ring (6) is arranged close to the fixing ring (16). An adjusting groove (61) for inserting the scraping plate (45) is formed on the inner wall of the rotating ring (6). The inner wall of the adjusting groove (61) away from the fixing ring (16) is coplanar with the inner peripheral surface of the pipeline (1).

7. A sewage treatment system for alleviating pipeline siltation according to claim 6, characterized in that: The rotating member includes a gear ring (62) sleeved and fixed on the outer peripheral surface of the rotating ring (6). A gear (63) is rotatably installed on the pipeline (1). The gear (63) meshes with the gear ring (62). A driving motor (64) coaxially fixed with the gear (63) is arranged on the pipeline (1).

8. The sewage treatment system for alleviating pipeline siltation according to claim 5, characterized in that: A reset block (53) is fixed on the side surface of the pressing block (5). A reset groove (54) is formed on the inner wall of the pressing groove (51). The reset block (53) is slidably matched with the connecting block (41) along the thickness direction of the connecting ring (3) through the reset groove (54). A reset spring (55) is fixed on the side surface of the reset block (53) away from the clamping block (31). One end of the reset spring (55) away from the reset block (53) is fixedly connected with the inner wall of the reset groove (54).

9. A sewage treatment system for alleviating pipeline siltation according to claim 5, characterized in that: A support rod (42) is fixed to the side of the connection block (41) away from the moving ring (2). The other end of the support rod (42) is fixed with a support block (43). A relief groove (44) is formed in the side of the support block (43) away from the support rod (42). The scraping plate (45) is slidably engaged with the support block (43) along the radial direction of the pipeline (1) through the relief groove (44). The side of the scraping plate (45) close to the inner wall of the pipeline (1) is provided with a tip. A sliding block (46) is fixed to the side of the scraping plate (45). A sliding groove (47) is formed in the inner wall of the relief groove (44). The sliding block (46) is slidably engaged with the support block (43) along the radial direction of the pipeline (1) through the sliding groove (47). A second spring (48) is fixed to the side of the sliding block (46) close to the limiting rod (13). One end of the second spring (48) away from the sliding block (46) is fixedly connected to the inner wall of the sliding groove (47).