A flexible cleaning mechanism and cleaning device for inner wall of a pipe with adaptive pipe diameter

Abstract

The present invention relates to a flexible cleaning mechanism and cleaning device for the inner wall of a pipeline that is adaptive to the pipe diameter, comprising a power mechanism, wherein the power mechanism is connected to one end of an inner shaft to drive the inner shaft to rotate, the other end of the inner shaft is fixed to an outer shell, the inner shaft is rotatably connected to a rotating body, the rotating body is connected to the inner shaft through a switching mechanism to achieve switching between a power connection and a disconnection state with the inner shaft, the rotating body is connected to one end of a plurality of connecting ropes, the other ends of the connecting ropes pass through the outer shell and are connected to a cleaning and polishing head. The cleaning mechanism of the present invention can adapt to the inner diameter of the pipeline and avoid rigid impact on the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cleaning, and in particular to a flexible pipeline inner wall cleaning mechanism and a cleaning device with adaptive pipe diameter. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Because pipelines are sealed, narrow, and have variable diameters, cleaning them without disassembling them is extremely difficult. Existing high-pressure water cleaning places high demands on pipelines and has a short working distance. Existing PIG pipe cleaning technology is suitable for cleaning pipelines that transport fluids over long distances. It can remove small, easily cleaned dirt from long pipelines, but it cannot solve problems like pipeline blockages or cleaning larger, harder dirt. Existing mechanical cleaning methods can clean stubborn dirt, but the equipment is difficult to adjust in diameter, has poor adaptability to pipelines of different diameters, and has high requirements for pipeline materials, resulting in poor universality.

[0004] Currently, there are pipeline cleaning equipment that uses a telescopic mechanism to drive the cleaning components to perform telescopic movement to meet the cleaning requirements of the inner walls of pipes of different diameters. However, in the above-mentioned pipeline cleaning equipment, the telescopic mechanism requires high rigidity. Once eccentric rotation occurs during rotary cleaning, it will impact the inner wall of the pipe. The instability of the impact when it comes into contact with the inner wall of the pipe will affect the cleaning ability at best and damage the pipe at worst. The mechanical structure has very high requirements for the pipe. Secondly, the telescopic mechanical structure requires the accurate knowledge of the inner diameter of the pipe to be cleaned in advance. In the case of narrow and long pipes, variable diameters, sudden changes in the inner diameter, or accumulation of dirt on the inner wall causing the inner diameter to decrease, it is impossible to reasonably evaluate the inner diameter of the pipe and accurately locate the telescopic length of the telescopic mechanism, which in turn affects the cleaning work. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a flexible pipe inner wall cleaning mechanism and cleaning device with adaptive pipe diameter, which can adapt to the inner diameter of the pipe, while meeting the cleaning needs of pipes of different diameters, avoiding damage to the pipe, and eliminating the need for precise assessment of the inner diameter of the pipe, thereby reducing the difficulty of cleaning.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In the first aspect, an embodiment of the present invention provides a flexible cleaning mechanism for the inner wall of a pipe with adaptive pipe diameter, including a power mechanism, which is connected to one end of the inner shaft to drive the inner shaft to rotate, and the other end of the inner shaft is fixed to the outer shell. The inner shaft is rotatably connected to a rotating body, and the rotating body is connected to the inner shaft through a switching mechanism to achieve switching between power connection and disconnection states with the inner shaft. The rotating body is connected to one end of a plurality of connecting ropes, and the other end of the connecting rope passes through the outer shell and is connected to a cleaning and polishing head.

[0008] Optionally, the shell includes a bottom shell wall, the outer edge of the bottom shell wall is provided with a side shell wall, the inner surface of the bottom shell wall is fixedly connected to the end of the inner shaft, and the outer surface is provided with a ceramic fiber brush.

[0009] Optionally, the ceramic fiber brushes are arranged in a plurality of bundles along the circumferential direction, and the ceramic fiber brushes are fixedly connected to the fixed shell, which is sleeved on the outer periphery of the outer shell and fixedly connected to the outer shell.

[0010] Optionally, the switching mechanism includes an elastic member and a pushing assembly, the elastic member is arranged between the side surface of one side of the rotating body and the outer shell, the end face of the other side of the rotating body has a first serrated surface, the end of the inner shaft is provided with a connecting portion, the connecting portion is provided with a second serrated surface that can engage with the first serrated surface, the first serrated surface engages with the second serrated surface under the action of the elastic member to achieve the fixation of the rotating body and the inner shaft, and the pushing assembly is used to apply an axial load to the rotating body to disengage the first serrated surface and the second serrated surface.

[0011] Optionally, the pushing assembly includes a telescopic driving member fixed to the power mechanism housing, the telescopic driving member is connected to the suction cup type electromagnet, and the end surface of the rotating body is provided with a magnetic metal sheet corresponding to the suction cup type electromagnet.

[0012] Optionally, the telescopic driving member adopts a push-pull electromagnet.

[0013] Optionally, a connecting rope accommodating groove is provided on the outer peripheral surface of the rotating body.

[0014] Optionally, the power mechanism includes a servo motor, the output shaft of the servo motor is connected to the flange shaft, the flange shaft includes a shaft section and a flange located at the end of the shaft section, and the flange is fixedly connected to the inner shaft.

[0015] Optionally, a locking ring is provided at one end of the connecting rope, and is fixedly connected to the rotating body through the locking ring and a threaded fastener, and the other end of the connecting rope is fixedly connected to the joint, and the joint is fixedly connected to the cleaning and polishing head.

[0016] In the second aspect, an embodiment of the present invention provides a flexible cleaning device for the inner wall of a pipe with an adaptive pipe diameter, which is provided with the flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter as described in the first aspect, and the power mechanism is connected to the movable support mechanism to drive the entire flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter to move along the pipe.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The flexible cleaning mechanism of the present invention has a power mechanism connected to the inner shaft, which is fixedly connected to the outer shell, and the inner shaft can be connected to the rotating body through a switching mechanism, and the rotating body is connected to a connecting rope, and the connecting rope is connected to a cleaning and polishing head. When the power mechanism drives the inner shaft to rotate, the rotating body and the outer shell can be driven to rotate through the switching mechanism. Under the action of the centrifugal force of the rotation, the cleaning and polishing head can contact the inner surface of the pipe to clean the inner wall of the pipe. The connecting rope is a flexible component and can adaptively adhere to the inner wall of the pipe under the action of centrifugal force. Compared with the cleaning component being attached to the inner wall of the pipe through the telescopic mechanism, it will not produce a rigid impact on the pipe, that is, it will not damage the pipe, and it also has good cleaning performance, and the diameter change is convenient and reliable, without the need to pre-evaluate the inner diameter of the pipe. The operation and structure are simple, and there is no need to add an additional telescopic mechanism, which reduces energy and cost consumption.

[0019] 2. The flexible cleaning mechanism of the present invention is provided with a switching mechanism, which can cut off the power transmission between the rotating body and the inner shaft, so that the rotating body does not rotate while the outer shell rotates, thereby realizing the retraction of the connecting rope on the rotating body and changing the length of the connecting rope extending to the outside of the outer shell, further meeting the needs of cleaning the inner walls of pipes with different diameters.

[0020] 3. The flexible cleaning mechanism of the present invention has a shell further connected to a ceramic fiber brush. The ceramic fiber brush is a flexible component that can rotate with the shell and adaptively conform to the inner wall of the pipe under the action of centrifugal force. The ceramic fiber brush can clean fine dust and sticky dirt, and the cleaning and polishing head can clean stubborn dirt that the ceramic fiber brush cannot remove. The functions of the two complement each other to ensure the cleaning effect of the inner wall of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the power mechanism structure of Example 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection of the cleaning and polishing head according to embodiment 1 of the present invention;

[0025] Figure 4 This is a front view of the connection of the cleaning and polishing head of embodiment 1 of the present invention;

[0026] Figure 5This is a rear view of the cleaning and polishing head of embodiment 1 of the present invention;

[0027] Figure 6 This is a cross-sectional view of the connection of the cleaning and polishing head according to embodiment 1 of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the first serrated surface and the second serrated surface in Example 1 of the present invention;

[0029] Figure 8 This is a schematic diagram of the connection between the connecting rope and the cleaning and polishing head in embodiment 1 of the present invention;

[0030] Figure 9 This is a cross-sectional view of the connection between the connecting rope and the cleaning and polishing head in embodiment 1 of the present invention;

[0031] Figure 10 This is a schematic diagram of the assembly of the ceramic fiber brush and the fixed housing according to Example 1 of the present invention;

[0032] Figure 11 Schematic diagram of the meshing state of the first serrated surface and the second serrated surface in Example 1 of the present invention;

[0033] Figure 12 Schematic diagram of the disengagement state of the first serrated surface and the second serrated surface in embodiment 1 of the present invention;

[0034] Figure 13 This is a schematic diagram of the working state of embodiment 2 of the present invention when cleaning a pipe with a larger inner diameter;

[0035] Figure 14 This is a schematic diagram of the working state of embodiment 2 of the present invention when cleaning a pipe with a smaller inner diameter;

[0036] Among them, 1. Cleaning and grinding head, 2. Connector, 3. Fixed shell, 4. Connecting rope, 5. Inner shaft, 6. Conductive magnet sheet, 7. Rotating body, 8. Outer shell, 9. Bushing, 10. Bolt, 11. Spring, 12. First serrated surface, 13. Screw, 14. Second serrated surface, 15. Screw, 16. Ceramic fiber brush, 17. Servo motor, 18. Flat key, 19. Flange shaft, 20. Nut, 21. Bolt, 22. Suction cup electromagnet, 23. Magnet connector, 24. Push-pull electromagnet, 25. Screw, 26. Locking ring, 27. Pipe, 28. Mobile support mechanism. DETAILED DESCRIPTION

[0037] Example 1

[0038] This embodiment provides a flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter, such as Figure 1As shown, it includes a power mechanism connected to the inner shaft 5 and capable of driving the inner shaft 5 to rotate about its own axis. The inner shaft 5 is fixedly connected to the outer shell 8, which is arranged on the outer periphery of the inner shaft 5. The inner shaft 5 can drive the outer shell 8 to rotate synchronously. The inner shaft 5 is rotatably connected to a rotating body 7, which is connected to the inner shaft 5 via a switching mechanism to achieve switching between a connected and disconnected state with the inner shaft 5.

[0039] The rotating body 7 is connected to multiple connecting ropes 4, and the ends of the connecting ropes 4 are connected to cleaning and polishing heads 1. When the rotating body 7 rotates with the inner shaft 5, under the action of centrifugal force, the cleaning and polishing heads 1 contact the inner wall of the pipe and clean the stubborn dirt on the inner wall of the pipe 27.

[0040] The housing 8 is further connected to a ceramic fiber brush 16 . Under the action of centrifugal force, the ceramic fiber brush 16 contacts the inner wall of the pipe to clean fine dust and sticky dirt.

[0041] like Figure 2 As shown, in this embodiment, the power mechanism adopts a servo motor 17, and the output shaft of the servo motor 17 is connected to the flange shaft 19 to drive the flange shaft 19 to rotate around its own axis.

[0042] In this embodiment, the flange shaft 19 includes a shaft section and a flange fixed to the end of the shaft section. The shaft section adopts a hollow shaft structure, and its end is sleeved on the outer periphery of the output shaft of the servo motor 17 and connected to the output shaft of the servo motor 17 by a flat key 18. The flange is fixedly connected to the inner shaft end 5 by multiple bolts 21 and nuts 20.

[0043] like Figure 3-Figure 7 As shown, in this embodiment, a connecting portion is provided at the end of the inner shaft 5 for fixing to the flange. The connecting portion adopts a circular plate structure with a diameter larger than that of the inner shaft. The circular plate structure is fixed to the flange shaft by multiple bolts and nuts.

[0044] A shaft sleeve 9 is sleeved and fixed on the outer periphery of the inner shaft 5 , and the rotating body 7 is sleeved on the outer periphery of the shaft sleeve 9 and is rotatably connected to the shaft sleeve 9 .

[0045] The housing 8 includes a bottom shell wall, which is a circular plate structure. The side of the bottom shell wall facing the power mechanism is provided with a side shell wall arranged along the edge, and the rotating body 7 and the inner shaft 5 are located in the inner space of the side shell wall.

[0046] The center position of the rear side surface of the bottom shell wall is fixedly connected to the end of the inner shaft 5 by a bolt 10, and a plurality of ceramic fiber brushes 16 are provided on the front side of the bottom shell wall. The servo motor 17 can drive the inner shaft 5 to rotate, and the inner shaft 5 can drive the outer shell 8 to rotate. The outer shell 8 drives the plurality of ceramic fiber brushes 16 to move. Under the action of centrifugal force, the ceramic fiber brushes 16 contact the inner surface of the pipe 27 to clean the inner surface of the pipe 27.

[0047] The switching mechanism includes an elastic member and a pushing assembly.

[0048] The elastic member is arranged between the rotating body 7 and the bottom shell wall of the outer shell 8. In this embodiment, the elastic member is a spring 11, which is sleeved on the outer periphery of the inner shaft 5. One end of the spring 11 is connected to the bottom shell wall, and the other end is connected to the annular folded edge at the end of the sleeve 9.

[0049] An elastic member is provided between one side surface of the rotating body 7 and the bottom shell wall, and the other side surface has a first serrated surface 12. The first serrated surface 12 includes a plurality of alternating serrations and grooves, and the serrations and grooves are all arranged along the radial direction of the rotating body 7.

[0050] The connecting portion at the end of the inner shaft 5 is provided with a second serrated surface 14 matching the first serrated surface 12 on the side close to the rotating body. The second serrated surface 14 also includes a plurality of alternating serrations and grooves, which are arranged radially along the rotating body and the connecting portion.

[0051] Under the elastic force of the spring 11 , the first serrated surface 12 and the second serrated surface 14 engage with each other, thereby achieving the connection between the inner shaft 5 and the rotating body 7 . The rotating body 7 can rotate synchronously with the inner shaft 5 around its own axis.

[0052] The pushing assembly is used to apply an axial force to the rotating body in a direction away from the servo motor, so that the first serrated surface 12 and the second serrated surface 14 are disengaged, thereby preventing the rotating body 7 from rotating synchronously with the inner shaft.

[0053] In this embodiment, the pushing assembly is mounted on the housing of the servo motor 17 and includes a telescopic driving member that can output movement toward or away from the rotating body and along the axis of the rotating body.

[0054] Preferably, the telescopic driving member adopts a push-pull electromagnet 24 , which can generate an extending movement toward the rotating body 7 when energized.

[0055] The push-pull electromagnet 24 can be made of existing equipment, and its specific structure will not be described in detail here.

[0056] The telescopic portion of the push-pull electromagnet 24 is connected to the suction cup electromagnet 22 via the electromagnet connector 23 . The electromagnet connector 23 , the suction cup electromagnet 22 and the telescopic portion of the push-pull electromagnet 24 are connected by threaded connection or plug-in connection.

[0057] The end surface of the rotating body 7 close to the servo motor 17 is provided with a magnetic conductive metal sheet corresponding to the suction cup type electromagnet 22. The magnetic conductive metal sheet adopts an annular structure. Preferably, the magnetic conductive metal sheet adopts a magnetic conductive sheet 6.

[0058] When the push-pull electromagnet 24 and the suction cup electromagnet 22 are energized, the push-pull electromagnet 24 can push out the suction cup electromagnet 22. The suction cup electromagnet 22 contacts the magnetic conductive sheet 6 and is adsorbed and fixed. The push-pull electromagnet 24 continues to extend, causing the rotating body 7 to compress the spring 11, and the first serrated surface 12 and the second serrated surface 14 are disengaged.

[0059] When the suction cup electromagnet 22 and the push-pull electromagnet 24 are powered off, the suction cup electromagnet 22 and the push-pull electromagnet 24 are reset, and under the elastic force of the spring 11 , the first serrated surface 12 and the second serrated surface 14 are re-engaged.

[0060] The rotating body 7 is connected to one end of a plurality of connecting ropes 4 , and the other end of the connecting rope 4 extends to the outside of the housing 8 through a through hole provided in the housing 8 and is connected to the cleaning and polishing head 1 .

[0061] In this embodiment, two connecting ropes 4 are provided. Preferably, the connecting ropes 4 are made of plastic nylon ropes. Accordingly, two through holes are provided on the housing 8. The two through holes are arranged opposite to each other, that is, at an interval of 180°.

[0062] The outer circumference of the rotating body 7 is provided with a connecting rope receiving groove. Since two connecting ropes 4 are provided, two connecting rope receiving grooves are provided. The connecting rope receiving groove is formed by three annular bosses provided on the outer circumference of the rotating body 7.

[0063] The end of one of the connecting ropes 4 is fixed to the annular boss on one side of the rotating body, and the other connecting rope is fixed to the annular boss on the other side of the rotating body.

[0064] The end of the connecting rope used to be fixed to the annular boss is provided with a locking ring 26, and the locking ring 26 is fixed to the side of the annular boss by a threaded fastener. Preferably, the threaded fastener is a screw 13. The connecting rope 4 passes through the through hole provided in the annular boss, goes around the outside of the annular boss to the inside of the annular boss, and then extends to the outside of the shell through the through hole.

[0065] like Figure 8-Figure 9 As shown, one end of the connecting rope 4 is fixed to the rotating body 7, and the other end is fixed to one end of the joint 2 through a screw 25, and the other end of the joint 2 is fixed to the cleaning and polishing head 1 through a screw.

[0066] In this embodiment, the joint 2 adopts a cylindrical structure, the end of the connecting rope 4 is inserted into the joint and fixed by the screw 25 of the joint 2 which is threadedly connected, and the cleaning and polishing head 1 is inserted into the joint 2 and fixed by the screw which is threadedly connected to the joint 2.

[0067] The cleaning and polishing head 1 of different materials and shapes can be easily replaced through the joint 2 to match the material of the pipe 27, without damaging the pipe 27 and thoroughly cleaning the inner wall of the pipe 27.

[0068] The cleaning and grinding head 1 has a set quality and roughness, and can clean stubborn dirt on the inner surface of the pipe 27.

[0069] like Figure 10 As shown, the ceramic fiber brush 16 is fixedly connected to the fixed shell 3, and the fixed shell 3 includes an annular bottom plate and a side plate arranged on the edge of the bottom plate. The side plate is sleeved on the outer periphery of the outer shell 8 and is fixedly connected to the outer shell 8 by a plurality of screws 15 arranged at equal intervals along the circumferential direction.

[0070] The working method of the flexible pipe inner wall cleaning mechanism of this embodiment is as follows:

[0071] like Figure 11 As shown, the suction cup electromagnet 22 and the push-pull electromagnet 24 are powered off, and under the elastic force of the spring 11, the first serrated surface 12 and the second serrated surface 14 are engaged with each other.

[0072] The servo motor 17 works, driving the inner shaft 5 to rotate in the forward direction through the flange shaft 19, and the inner shaft 5 drives the outer shell 8 to rotate. Since the first serrated surface 12 and the second serrated surface 14 are engaged with each other, the inner shaft 5 drives the rotating body 7 to rotate. Under the action of centrifugal force, the two connecting ropes 4 drive the cleaning and polishing head 1 to contact the inner surface of the pipe to clean the inner surface of the pipe. At the same time, under the action of centrifugal force, the fiber bundle of the ceramic fiber brush 16 expands and contacts the inner surface of the pipe, and the ceramic fiber brush 16 cleans the inner surface of the pipe 27.

[0073] The ceramic fiber brush 16 is located at the front side, and first cleans the fine dust and sticky dirt on the inner surface of the pipe 27, and then the cleaning and grinding head 1 cleans the stubborn dirt that the ceramic fiber brush 16 cannot clean.

[0074] The cleaning and grinding head 1 and the ceramic fiber brush 16 complement each other in function, ensuring a better cleaning effect.

[0075] like Figure 12 As shown, when the push-pull electromagnet 24 and the suction cup electromagnet 22 are energized, the push-pull electromagnet 24 can push the suction cup electromagnet 22 out, and at the same time the suction cup electromagnet 22 is adsorbed and fixed to the magnetic conductive sheet 6. Under the action of the push-pull electromagnet 24, the first serrated surface 12 and the second serrated surface 14 are disengaged, the spring 11 is compressed, and the inner shaft 5 rotates in the opposite direction under the action of the servo motor 17. The power of the inner shaft 5 cannot be transmitted to the rotating body 7, and a speed difference is generated between the rotating body 7 and the outer shell 8. The connecting rope 4 is received in the connecting rope accommodating groove, and the length of the connecting rope 4 extending to the outside of the outer shell 8 is reduced, and the rotation diameter of the cleaning and grinding head 1 becomes smaller. At this time, it can be adapted to the cleaning of the inner wall of a pipe with a smaller diameter.

[0076] When the inner shaft 5 drives the outer shell 8 to rotate forward, the connecting rope 4 can be released from the connecting rope accommodating groove, the length of the connecting rope 4 extending to the outside of the outer shell 8 increases, and the rotation diameter of the cleaning and grinding head 1 becomes larger, which is suitable for cleaning the inner wall of a large-diameter pipe. By changing the length of the ceramic fiber rotating brush 16, the ceramic fiber brush 16 can be adapted to the cleaning work of the inner wall of a large-diameter and a small-diameter pipe.

[0077] The cleaning mechanism of this embodiment, the connecting rope 4 and the ceramic fiber brush 16 are flexible components, which can adaptively stick to the inner wall of the pipe under the action of centrifugal force. Compared with the cleaning component sticking to the inner wall of the pipe through the telescopic mechanism, it will not produce a rigid impact on the pipe, that is, it will not damage the pipe, and it also has good cleaning performance. The diameter change is convenient and reliable, and there is no need to evaluate the inner diameter of the pipe in advance. The operation and structure are simple, and there is no need to add an additional telescopic mechanism, which reduces energy and cost consumption.

[0078] Example 2

[0079] This embodiment provides a flexible cleaning device for the inner wall of a pipe with an adaptive pipe diameter, such as Figure 13-14 As shown, a flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter as described in Example 1 is provided, and the housing of the servo motor is connected to the mobile support mechanism 28. The mobile support mechanism 28 can use an existing electric walking vehicle that matches the pipe and can move along the inside of the pipe. Its specific structure will not be described in detail here.

[0080] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter, characterized in that: The invention comprises a power mechanism, the power mechanism is connected to one end of the inner shaft to drive the inner shaft to rotate, the other end of the inner shaft is fixed to the outer shell, the inner shaft is rotatably connected to a rotating body, the rotating body is connected to the inner shaft through a switching mechanism to achieve switching between a power connection and a disconnection state with the inner shaft, the rotating body is connected to one end of a plurality of connecting ropes, and the other end of the connecting rope passes through the outer shell and is connected to a cleaning and grinding head; The switching mechanism includes an elastic member and a pushing assembly, the elastic member is arranged between the side surface of one side of the rotating body and the outer shell, the end surface of the other side of the rotating body has a first serrated surface, the end of the inner shaft is provided with a connecting portion, the connecting portion is provided with a second serrated surface capable of engaging with the first serrated surface, the first serrated surface engages with the second serrated surface under the action of the elastic member to achieve the fixing of the rotating body and the inner shaft, and the pushing assembly is used to apply an axial load to the rotating body to disengage the first serrated surface and the second serrated surface; The housing comprises a bottom shell wall, the outer edge of the bottom shell wall is provided with a side shell wall, the inner surface of the bottom shell wall is fixedly connected to the end of the inner shaft, and the outer surface is provided with a ceramic fiber brush; The pushing assembly includes a telescopic driving member fixed to the power mechanism housing, the telescopic driving member is connected to the suction cup type electromagnet, and the end surface of the rotating body is provided with a magnetic conductive metal sheet corresponding to the suction cup type electromagnet; The outer peripheral surface of the rotating body is provided with a connecting rope accommodating groove; the power mechanism includes a servo motor, the output shaft of the servo motor is connected to the flange shaft, the flange shaft includes a shaft section and a flange located at the end of the shaft section, and the flange is fixedly connected to the inner shaft.

2. A flexible cleaning mechanism for the inner wall of a pipe with an adaptive diameter as claimed in claim 1, characterized in that: The ceramic fiber brushes are arranged in a plurality of bundles along the circumferential direction. The ceramic fiber brushes are fixedly connected to the fixed shell. The fixed shell is sleeved on the outer periphery of the outer shell and is fixedly connected to the outer shell.

3. The flexible cleaning mechanism for the inner wall of a pipe with an adaptive pipe diameter according to claim 1, characterized in that: The telescopic driving member adopts a push-pull electromagnet.

4. The flexible cleaning mechanism for the inner wall of a pipe with an adaptive diameter according to claim 1, characterized in that: One end of the connecting rope is provided with a locking ring and is fixedly connected to the rotating body through the locking ring and a threaded fastener. The other end of the connecting rope is fixedly connected to the joint, and the joint is fixedly connected to the cleaning and polishing head.

5. A flexible cleaning device for the inner wall of a pipe with an adaptive pipe diameter, characterized in that: A flexible cleaning mechanism for the inner wall of a pipeline with an adaptive diameter as described in any one of claims 1 to 4 is provided, and the power mechanism is connected to the mobile support mechanism to drive the entire flexible cleaning mechanism for the inner wall of a pipeline with an adaptive diameter to move along the pipeline.

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