Anti-blocking municipal drainage pipe network self-dredging device and working method

Abstract

The invention provides an anti-blocking municipal drainage pipe network self-dredging device and a working method, relates to the field of municipal pipe network facilities, and aims to solve the problem that existing dredging equipment is inconvenient to operate in a pipeline for a long time. A water turbine and dredging blades are arranged and mounted in the pipeline through a fixing frame, and a water inlet of the water turbine is located between the axis and the bottom end of the pipeline; the area is the position where water flow carrying kinetic energy is high and deposits are prone to accumulation, water flow drives the water turbine to operate through the water inlet, then the desilting blades are driven to rotate continuously, a self-driving mode with the water flow as power is achieved, the deposits at the bottom are disturbed and prevented from being accumulated and solidified for a long time, and normalized desilting is achieved. Operation is not needed after sediment reaches a threshold value, external equipment such as a dredging vehicle does not need to enter the pipeline, the external space of the pipeline is not occupied, long-time drainage interruption is not needed, a space for water flow to penetrate is naturally formed on the dredging blades, normal drainage of the pipeline is not hindered, and the dredging blades can be arranged in the pipeline for a long time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of municipal pipe network facilities, in particular to a self-dredging device for preventing municipal drainage pipe network from being blocked and a working method. BACKGROUND

[0002] In urban infrastructure, rainwater, domestic sewage and the like collected by the drainage system will flow into the municipal drainage pipe network. Various sundries and silt carried by the water body will deposit at the bottom of the drainage pipeline, thereby occupying the area for water flow in the drainage pipeline, resulting in poor drainage. The current dredging equipment in the drainage pipeline adopts a dredging vehicle running in the sewage pipeline and a dredging shovel fixed on the dredging vehicle. The bottom of the dredging shovel is arc-shaped and abuts against the inner wall of the pipeline. The dredging vehicle is fixed with a mud pumping pump for pumping the silt in the dredging shovel into a collecting box. The mud pumping pump is communicated with a mud discharge pipe communicated with the outside of the sewage pipeline. In the process of driving the dredging shovel to advance, the dredging shovel scoops the silt in the sewage pipeline into the dredging shovel and piles up. The silt in the dredging shovel is pumped into the mud discharge pipe by the mud pumping pump and discharged to the outside of the sewage pipeline.

[0003] The dredging equipment running in the drainage pipeline has poor adaptability to the pipe diameter of different drainage pipelines. Although a dredging shovel with variable size can be configured, it is not convenient to cross the inspection well for operation. The connection position of the inspection well and the pipeline is often provided with a filter screen structure. Before and after dredging, the filter screen structure needs to be disassembled. The space in the inspection well and the pipeline is relatively narrow, the operation range is limited, and the overall dredging efficiency is affected. The dredging vehicle itself is also difficult to stay in the drainage pipeline for a long time. Only when the accumulated material reaches a certain amount, special cleaning is carried out. The cleaning of the accumulated material is not timely, which causes great difficulty in dredging, long dredging operation time, and great influence on the normal operation of the drainage pipeline. SUMMARY

[0004] The present application aims at the defects in the prior art and provides a self-dredging device for preventing municipal drainage pipe network from being blocked and a working method. A water turbine and a dredging blade are installed in the pipeline through a fixing frame. The water inlet of the water turbine is located between the pipeline axis and the bottom end. This area is where the water flow has strong kinetic energy and the accumulated material is easy to accumulate. The water flow drives the water turbine to operate through the water inlet, and then drives the dredging blade to rotate continuously, realizing the self-driving mode of water flow as power, disturbing the bottom accumulated material, avoiding its long-term accumulation and solidification, realizing normal dredging, without waiting for the accumulated material to reach a threshold value before operation, without the need for external equipment such as a dredging vehicle to enter the pipeline, without occupying the space outside the pipeline, without the need for long-term interruption of drainage, and without hindering the normal drainage of the pipeline. The dredging blade naturally forms a space for water flow to pass through; the disturbance operation of the dredging blade is synchronized with the drainage process, avoiding the interruption of the pipeline operation caused by special dredging.

[0005] The first objective of this invention is to provide a self-cleaning device for preventing blockages in municipal drainage pipe networks, which employs the following solution: The fixed bracket is located inside the pipe and distributed radially along the pipe. Its two ends are slidably fitted into the guide grooves at the top and bottom of the pipe, respectively. The guide grooves are distributed axially along the pipe. The dredging blades are rotatably mounted on the fixed frame. The water turbine is mounted on a fixed frame. The water inlet of the water turbine is located between the pipeline axis and the bottom of the pipeline. The output end of the water turbine is connected to the sludge removal blades to drive the sludge removal blades to rotate and disturb the silt accumulated at the bottom of the pipeline.

[0006] Furthermore, the fixed frame is connected to traction cables on both sides. One end of the traction cable extends along the pipeline into the inspection well and is wound around the winding drum. The traction cable drives the fixed frame to move axially along the pipeline.

[0007] Furthermore, the drum is connected to a winding drive mechanism, and the traction cables on both sides of the fixed frame extend to different inspection wells and are connected to different winding drums.

[0008] Furthermore, the two ends of the fixing frame are respectively connected to traction cables, and the traction cables on the same side of the fixing frame extend into the same inspection well and are synchronously wound by the winding drum, so that the fixing frame remains radially distributed along the pipeline when it moves along the pipeline axial direction.

[0009] Furthermore, it also includes a bar screen, which is installed at both ends of the pipe.

[0010] Furthermore, the grid filter is equipped with a scraper that moves along the surface of the grid filter. The scraper is connected to a cleaning drive mechanism to drive the scraper to scrape off the attached material relative to the grid filter.

[0011] Furthermore, it also includes monitoring components, which include a flow rate sensor, a water level sensor, and a sediment volume sensor that are respectively connected to the controller. The flow rate sensor, water level sensor, and sediment volume sensor are respectively installed inside the pipeline.

[0012] Furthermore, the sediment level sensor is a visual camera, which acquires the sediment accumulation height inside the pipe and sends it to the controller.

[0013] A second objective of this invention is to provide a method for operating a self-cleaning device for preventing blockages in municipal drainage networks. The method utilizes the self-cleaning device for preventing blockages in municipal drainage networks as provided in the first objective, comprising: The fixed frame is distributed radially along the pipeline to maintain the position of the water turbine and sludge removal blades. When there is sewage flowing in the pipeline, the water flows in from the water turbine inlet located between the pipeline axis and the bottom end, driving the water turbine to run. The turbine's output transmits power to the sludge-removing blades, causing them to rotate on the fixed frame. The rotating blades directly disturb the silt, debris, and other sediments accumulated at the bottom of the pipe, breaking up the sediment and dispersing and suspending them in the water flow. The disturbed silt flows along with the main stream of sewage in the pipe and is eventually discharged from the pipe.

[0014] Furthermore, by moving the fixed frame along the guide slide, the position of the dredging blades and the water turbine inside the pipeline is adjusted, thereby changing the dredging position.

[0015] Compared with the prior art, the advantages and positive effects of this invention are: To address the issue of current dredging equipment being inconvenient to operate long-term inside pipelines, a water turbine and dredging blades are installed inside the pipeline using a fixed frame. The water turbine's inlet is located between the pipeline axis and the bottom, an area where water flow carries strong kinetic energy and silt easily accumulates. Water flow through the inlet drives the water turbine, which in turn drives the dredging blades to rotate continuously, achieving a self-driven mode powered by water flow. This disturbs the silt at the bottom, preventing it from accumulating and solidifying over time, enabling routine dredging. There is no need to wait for the silt to reach a threshold before operation, no need for external equipment such as dredging trucks to enter the pipeline, no occupation of external pipeline space, and no need for prolonged drainage interruptions. The dredging blades naturally create space for water flow, not obstructing normal pipeline drainage, and can be installed inside the pipeline long-term. The disturbance operation of the dredging blades is synchronized with the drainage process, avoiding the disruption to pipeline operation caused by dedicated dredging.

[0016] The traction cables on both sides or at both ends of the fixed frame extend into the inspection wells at both ends of the pipeline, connect to the winding drum, and the traction cables on the same side are wound synchronously, pulling the fixed frame to move axially along the guide slide. The synchronously wound traction cables on the same side ensure that the fixed frame is always radially distributed, and the dredging blades can evenly cover all areas at the bottom of the pipeline. Even if the pipeline has a slope or local bends, the device can still accurately reach the severely silted areas through controllable movement, solving the problem of incomplete dredging at fixed positions.

[0017] The bar screen intercepts large debris (such as plastic bags and branches) entering the pipeline from the inspection well, preventing them from contacting the sludge removal blades and water turbine. When silt or small debris adheres to the surface of the screen, the scraper automatically removes it under the drive of the cleaning mechanism, maintaining the screen's water flow capacity and ensuring that the water flow entering the pipeline can stably drive the water turbine. This ensures the reliability of the device's long-term operation between the two wells, eliminating the need for frequent manual entry into narrow pipes or inspection wells to disassemble and install the screen.

[0018] A visual camera captures the height of silt accumulation at the bottom of the pipe in real time, a flow velocity sensor monitors whether the water flow is powerful enough to drive the turbine, and a water level sensor determines whether siltation is causing drainage problems. The controller adjusts the winding mechanism based on the data, moving the fixing frame to areas with severe siltation, or fine-tuning the position of the winding device when the water flow is low. This ensures that the sludge-removing blades always work on key areas, preventing blockages caused by localized silt buildup between the two manholes. This solves the problem of traditional specialized sludge removal methods struggling to monitor localized siltation in real time. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of a self-cleaning device for preventing blockages in municipal drainage pipe networks, as shown in one or more embodiments of the present invention.

[0021] Figure 2 This is a cross-sectional view of the anti-clogging municipal drainage network self-cleaning device in one or more embodiments of the present invention.

[0022] The components include: 1. Inspection well; 2. Rewinding drive mechanism; 3. Cleaning drive mechanism; 4. Guide chute; 5. Traction cable; 6. Fixing frame; 7. Water turbine; 8. Dredging blades; 9. Inlet; 10. Pipeline; 11. Controller; 12. Sliding block. Detailed Implementation

[0023] Example 1 In a typical embodiment of the present invention, such as Figures 1-2 As shown, a self-cleaning device for preventing blockages in municipal drainage pipe networks is presented.

[0024] The space at the connection between pipe 10 and inspection well 1 is narrow, making it difficult for external equipment to enter and resulting in high maintenance costs. Furthermore, traditional sludge removal equipment requires frequent entry and exit from pipe 10, which can easily disrupt normal drainage operation. Therefore, this embodiment provides a self-cleaning device for anti-clogging municipal drainage networks. The device resides within pipe 10 long-term, eliminating the need for frequent entry and exit from the narrow space, thus reducing manual maintenance and equipment scheduling costs. The turbine 7 utilizes water flow for autonomous drive, causing the sludge removal blades 8 to agitate the silt accumulated at the bottom of pipe 10, which is then discharged under the flushing action of the water flow, reducing energy consumption and adapting to long-term operation.

[0025] like Figures 1-2 As shown, the anti-clogging municipal drainage network self-cleaning device includes a fixed frame 6, sludge removal blades 8, and a water turbine 7.

[0026] The fixing frame 6 is radially distributed along the pipe 10 and is arranged as a whole inside the pipe 10. Guide grooves 4 are embedded at both ends of the fixing frame 6, which are located at the top and bottom of the pipe 10, together maintaining the relative posture of the fixing frame 6 and the pipe 10. The sludge removal blade 8 is rotatably mounted on the fixing frame 6 and driven by a water turbine 7. The water turbine 7 is mounted on the fixing frame 6, and its inlet 9 is located between the axis of the pipe 10 and the bottom end of the pipe 10, in the bottom water flow zone of the pipe 10. It is powered autonomously by the water flow within the pipe 10. The output end of the water turbine 7 is connected to the sludge removal blade 8 to drive its rotation and disturb the silt accumulated at the bottom of the pipe 10.

[0027] The fixing brackets 6 are radially distributed along the pipe 10, and their two ends are slidably embedded into the guide grooves 4 on the inner wall of the pipe 10, so that the size of the fixing brackets 6 matches the size of the pipe 10. Fixing brackets 6 of corresponding sizes can be configured in pipes 10 of different diameters without relying on the size adjustment of external general-purpose equipment. The setting of the guide grooves 4 allows the fixing brackets 6 to be stably engaged according to the radial dimension of the pipe 10, and does not disengage from the inner wall of the pipe 10 when sliding axially.

[0028] The entire device is located inside the pipe 10, and the fixing frame 6 can be adjusted relative to the pipe 10 by sliding along the axial direction. At the same time, the device does not require the intervention of external equipment, avoids dependence on the filter screen inside the inspection well 1, and the sludge removal blade 8 works directly inside the pipe 10 without the need to disassemble and install the filter screen, reducing the operation steps in narrow spaces and breaking through the spatial limitations of working across the inspection well 1.

[0029] The water inlet 9 of the turbine 7 is located between the axis and the bottom of the pipe 10. This area is where the water flow carries strong kinetic energy. The silt is located at the bottom of the pipe 10. The water flow drives the turbine 7 through the water inlet 9, which in turn drives the sludge removal blades 8 to rotate continuously. This achieves a self-driven mode with water flow as the power source, disturbing the silt at the bottom and preventing it from accumulating and solidifying for a long time. This enables routine sludge removal without waiting for the silt to reach a threshold. It also eliminates the need for external equipment such as sludge removal vehicles to enter the pipe 10, does not occupy the external space of the pipe 10, and does not require long-term interruption of drainage. The sludge removal blades 8 naturally form a space for water flow to pass through, without obstructing the normal drainage of the pipe 10, and can be installed inside the pipe 10 for a long time. The disturbance operation of the sludge removal blades 8 is carried out simultaneously with the drainage process, avoiding the impact of special sludge removal on the operation of the pipe 10.

[0030] It should be noted that the sewage flowing inside pipe 10, especially the water flow near the bottom of pipe 10, is prone to siltation at the bottom, and the water flow often contains mud, sand, and debris. Positioning the inlet 9 of the turbine 7 between the axis of pipe 10 and the bottom, precisely above the area where silt easily accumulates, reduces the clogging effect of silt on the turbine 7. This allows the inlet 9 of the turbine 7 to withstand the impact of the water flow, while also ensuring it is not positioned too high, allowing it to be driven by the water flow even when the drainage level is low. The water flow impacts the impeller inside the turbine 7, converting the kinetic energy of the water flow into the rotational mechanical energy of the impeller.

[0031] The output end of the turbine 7 is directly or indirectly connected to the dredging blade 8. When indirectly connected, a reducer can be configured to transmit the rotational power to the dredging blade 8, driving the blade to rotate continuously around the rotating shaft on the fixed frame 6.

[0032] When the sludge removal blade 8 rotates under the drive of the water turbine 7, its blade structure directly acts on the silt at the bottom of the pipe 10. For the already deposited silt, small debris, etc., the rotation of the blade will create mechanical disturbance, breaking the static accumulation state of the silt and breaking up the blocky or hardened silt. During the rotation of the blade, it will also drive the surrounding water to form a local eddy, and use the impact force of the water flow to further flush the silt, so that the silt originally attached to the bottom of the pipe 10 will detach from the inner wall of the pipe 10 and mix into the flowing sewage. Since the device is in the pipe 10 for a long time, the continuous disturbance of the blade can prevent the silt from hardening and hardening due to long-term static placement, thus reducing the formation of stubborn silt from the source.

[0033] The turbine 7 is driven by the water flow of the pipeline 10 itself, without the need for additional external power, ensuring that the device can operate autonomously for a long time between the two inspection wells 1, and is suitable for the scenario of continuous drainage in the pipeline 10; the disturbance range of the blades accurately covers the bottom of the pipeline 10, which specifically solves the problem of high siltation areas. At the same time, the water flow power generated by the disturbance is superimposed with the main water flow of the pipeline 10, which transports the dispersed silt along with the sewage to the downstream pipe network, and finally discharges it through the drainage system, achieving a dynamic balance of siltation and cleaning.

[0034] In this embodiment, as Figure 1 As shown, the guide groove 4 is provided with a T-shaped groove, and the fixed clamp end adopts a T-shaped slider 12, so that the slider 12 slides in the groove, forming a constraint on the radial and circumferential positions. At the same time, it can slide along the axial direction, and the groove provides a guiding effect on the movement of the slider 12.

[0035] The sludge removal blade 8 has a propeller-shaped structure, with a rotating shaft and multiple disturbance blades installed on the rotating shaft. The rotating shaft is connected to the output end of the water turbine 7. The blades are distributed upward along the rotating shaft ring and can rotate around the rotating shaft axis under the drive of the rotating shaft. The blade ends can disturb the silt at the bottom of the pipe 10, loosen the silt, and thus be more effectively carried by the water flow.

[0036] like Figure 1 As shown, traction cables 5 are connected to both sides of the fixed frame 6. One end of the traction cable 5 extends along the pipe 10 into the inspection well 1 and is wound onto a take-up drum. The traction cable 5 drives the fixed frame 6 to move axially along the pipe 10. The drum is connected to a take-up drive mechanism 2. The traction cables 5 on both sides of the fixed frame 6 extend to different inspection wells 1 and are connected to different take-up drums. The take-up drive mechanism 2 can be a combination of an electric motor and a reducer, with the output end of the reducer connected to the drum. Alternatively, a traction machine can be used. The two ends of the fixed frame 6 are connected to traction cables 5. The traction cables 5 on the same side of the fixed frame 6 extend into the same inspection well 1 and are wound synchronously onto the take-up drum, so that the fixed frame 6 remains radially distributed along the pipe 10 when it moves axially along the pipe 10.

[0037] By rotating the winding drum in both directions, the traction cable 5 pulls the fixing frame 6 to move stably along the axial direction of the pipeline 10. The traction cables 5 on both sides are connected to different inspection wells 1, which can realize continuous operation across inspection wells 1 of long-distance pipeline 10. The traction cables 5 on the same side are wound synchronously to ensure that the fixing frame 6 always maintains a radial distribution state when it moves, avoids tilting or jamming, and ensures uniform disturbance of the bottom of the pipeline 10 by the sludge removal blades 8.

[0038] It also includes a bar screen, which is installed at both ends of the pipe 10. The bar screen is equipped with a scraper that moves along the surface of the bar screen. The scraper is connected to the cleaning drive mechanism 3 to drive the scraper to scrape off the attached material relative to the bar screen.

[0039] The cleaning drive mechanism 3 can use a small motor combined with a gear and rack mechanism or a lead screw and slider mechanism 12 to drive the scraper to move relative to the bar screen. The bar screen pre-intercepts large debris, protecting the water turbine 7 and the sludge removal blades 8; the scraper moves along the surface of the screen, scraping off the attached silt or small debris in real time, maintaining the screen's water flow capacity. No manual disassembly and cleaning is required, solving the problem of frequent maintenance required by traditional screens.

[0040] It also includes monitoring components, which include a flow rate sensor, a water level sensor, and a sediment volume sensor, all of which are connected to the controller 11 and installed inside the pipe 10. The sediment volume sensor is a vision camera that acquires the height of sediment buildup inside the pipe 10 and sends the data to the controller 11.

[0041] A flow velocity sensor monitors the water flow speed, providing a reference for the power output of the turbine 7; a water level sensor monitors changes in the water level within the pipe 10 to determine if there is a risk of blockage; a vision camera captures images of the bottom of the pipe 10, obtaining the height of silt accumulation through image recognition. After the controller 11 aggregates the data, it can automatically trigger the winding mechanism to move the fixing frame 6 to the severely silted area, or activate the scraper to clean the filter screen, achieving intelligent control of on-demand silt removal.

[0042] When the monitoring component detects a large amount of silt in a certain section of pipe 10, the controller 11 activates the winding drive mechanism 2 of the corresponding inspection well 1, and pulls the fixed frame 6 to move precisely to the target area through the traction cable 5; the synchronously wound traction cable 5 ensures that the fixed frame 6 maintains a radial posture, and the sludge removal blades 8 efficiently disturb the silt under the drive of the water turbine 7 to achieve directional sludge removal.

[0043] The grid filters at both ends of the pipe 10 intercept foreign debris to prevent damage to the device; if debris adheres to the filter screen, causing the water flow area to decrease, the water level sensor triggers the scraper to start, and the cleaning drive mechanism 3 drives the scraper to remove the attached material, ensuring that the water flows smoothly into the pipe 10 and provides stable power to the turbine 7.

[0044] The controller 11 dynamically adjusts the moving speed and stopping position of the fixed frame 6 based on the flow rate, water level and siltation data. When the water flow is small, the movement of the traction cable 5 is reduced to save energy. When the siltation is severe, the working time of the sludge removal blade 8 is increased to achieve an unattended and automatic sludge removal mode.

[0045] like Figure 1 and Figure 2 As shown, the fixed frame 6 is connected to the winding mechanism inside the inspection well 1 via the traction cable 5, allowing it to move axially within the pipe 10 between the two wells. When the visual camera detects that the height of silt accumulation in a certain area exceeds the standard, the controller 11 activates the winding drive mechanism 2, which synchronously winds the traction cable 5 on the same side, pulling the fixed frame 6 smoothly to the target area. At this time, the water turbine 7 uses the water flow in the pipe 10 to drive the sludge removal blades 8 to rotate, specifically disturbing the local silt and preventing accumulation in dead corners.

[0046] The entire device is built-in and permanently resides within the pipe 10 between the two wells, eliminating the need for frequent entry of external equipment into the confined space. The mounting bracket 6 slides against the inner wall of the pipe 10 via the guide groove 4, and the operation of the traction cable 5 is concentrated within the inspection well 1, a relatively open space that avoids the difficulties of direct operation within the pipe 10. Simultaneously, the turbine 7 is driven by the water flow within the pipe 10 itself, requiring no external power supply, making it suitable for long-term unattended operation and significantly reducing interference with the normal drainage of the pipe 10.

[0047] Example 2 In another typical embodiment of the present invention, such as Figures 1-2As shown, a working method of a self-cleaning device for anti-clogging municipal drainage pipe networks is given, which utilizes the self-cleaning device for anti-clogging municipal drainage pipe networks as described in Example 1.

[0048] A method for operating a self-cleaning device for preventing blockages in municipal drainage pipe networks includes: The fixed frame 6 is radially distributed along the pipe 10 to maintain the position of the water turbine 7 and the sludge removal blade 8. When there is sewage flowing in the pipe 10, the water flows in from the water turbine 7 inlet 9 located between the axis of the pipe 10 and the bottom end, driving the water turbine 7 to run. The output end of the water turbine 7 transmits power to the sludge removal blades 8, which drive the blades to rotate on the fixed frame 6. The rotating sludge removal blades 8 directly disturb the silt, debris and other silt accumulated at the bottom of the pipe 10, breaking the sedimentation state of the silt and dispersing and suspending it in the water flow. The disturbed silt flows along with the main stream of sewage in pipe 10 and is eventually discharged from pipe 10.

[0049] By moving the fixed frame 6 along the guide slide, the position of the dredging blade 8 and the water turbine 7 in the pipeline 10 is adjusted, thereby changing the dredging position.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A self-cleaning device for preventing blockages in municipal drainage pipe networks, characterized in that, include: The fixed bracket is located inside the pipe and distributed radially along the pipe. Its two ends are slidably fitted into the guide grooves at the top and bottom of the pipe, respectively. The guide grooves are distributed axially along the pipe. The dredging blades are rotatably mounted on the fixed frame. The water turbine is mounted on a fixed frame. The water inlet of the water turbine is located between the pipeline axis and the bottom of the pipeline. The output end of the water turbine is connected to the sludge removal blades to drive the sludge removal blades to rotate and disturb the silt accumulated at the bottom of the pipeline.

2. The anti-clogging municipal drainage network self-cleaning device as described in claim 1, characterized in that, The fixed frame is connected to traction cables on both sides. One end of the traction cable extends along the pipeline into the inspection well and is wound around the winding drum. The traction cable drives the fixed frame to move axially along the pipeline.

3. The anti-clogging municipal drainage network self-cleaning device as described in claim 2, characterized in that, The drum is connected to a winding drive mechanism, and the traction cables on both sides of the fixed frame extend to different inspection wells and are connected to different winding drums.

4. The anti-clogging municipal drainage network self-cleaning device as described in claim 2 or 3, characterized in that, The two ends of the fixing frame are respectively connected to traction cables. The traction cables on the same side of the fixing frame extend into the same inspection well and are wound synchronously by the winding drum, so that the fixing frame remains radially distributed along the pipeline when it moves along the pipeline axis.

5. The anti-clogging municipal drainage network self-cleaning device as described in claim 1, characterized in that, It also includes a bar screen, which is installed at both ends of the pipe.

6. The anti-clogging municipal drainage network self-cleaning device as described in claim 5, characterized in that, The grid filter is equipped with a scraper that moves along the surface of the grid filter. The scraper is connected to a cleaning drive mechanism to drive the scraper to scrape off the attached material relative to the grid filter.

7. The anti-clogging municipal drainage network self-cleaning device as described in claim 1, characterized in that, It also includes monitoring components, which include a flow rate sensor, a water level sensor, and a sediment volume sensor that are respectively connected to the controller. The flow rate sensor, water level sensor, and sediment volume sensor are respectively installed inside the pipeline.

8. The anti-clogging municipal drainage network self-cleaning device as described in claim 7, characterized in that, The sediment level sensor is a vision camera, which acquires the height of sediment buildup in the pipe and sends it to the controller.

9. A method for operating a self-cleaning device for preventing blockages in municipal drainage pipe networks, utilizing the self-cleaning device for preventing blockages in municipal drainage pipe networks as described in any one of claims 1-8, characterized in that, include: The fixed frame is distributed radially along the pipeline to maintain the position of the water turbine and sludge removal blades. When there is sewage flowing in the pipeline, the water flows in from the water turbine inlet located between the pipeline axis and the bottom end, driving the water turbine to run. The turbine's output transmits power to the sludge-removing blades, causing them to rotate on the fixed frame. The rotating blades directly disturb the silt, debris, and other sediments accumulated at the bottom of the pipe, breaking up the sediment and dispersing and suspending them in the water flow. The disturbed silt flows along with the main stream of sewage in the pipe and is eventually discharged from the pipe.

10. The working method of the anti-clogging municipal drainage network self-cleaning device as described in claim 9, characterized in that, By moving the fixed frame along the guide slide, the position of the dredging blades and water turbine inside the pipeline is adjusted, thereby changing the dredging position.

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