CN117548447A - A device for cleaning impurities on the inner wall of thermal pipelines - Google Patents

Abstract

The invention belongs to the technical field of cleaning of inner walls of pipelines, and particularly discloses a device for cleaning impurities on the inner walls of heating pipelines, which comprises a rough reducing bent pipe cleaning travelling mechanism and a device for cleaning the inner walls of the pipelines. According to the condition of uneven impurity distribution on the inner wall of the heating pipeline, a mode of combining local self-adaptive reducing expansion and micro-rotation is adopted, so that the technical effect of adaptive running in the whole environment condition in the pipeline is realized; the method of combining split type cleaning and sweeping is adopted, so that the technical effect of effectively cleaning impurities in the pipeline in real time is achieved.

Description

A device for cleaning impurities on the inner wall of thermal pipelines

Technical field

The invention belongs to the technical field of pipeline inner wall cleaning, and specifically refers to a device for cleaning impurities on the inner wall of thermal pipelines.

Background technique

Thermal pipeline is a pipeline system used to transport thermal energy (such as steam, hot water, etc.). It is often used in heating, heating, cooling and other fields. When the thermal pipeline transports heat to every household, due to long-term corrosion Due to erosion and accumulation, a large amount of scale will be produced on the inner wall of the pipe, and some impurities will stick to the inner wall of the pipe. Since the dirt in the pipe takes a long time to generate and the impurities stick, it is generally difficult to clean the dirt and impurities on the inner wall of the pipe. out, but if these dirt and impurities are not completely cleaned out from the pipes, it will affect the use of the pipes, affect the quality of the heating supply, and also have a great impact on the service life of the heating pipes; therefore, it is necessary to design a thermal pipe Inner wall impurity cleaning device to solve such problems.

Contents of the invention

In response to the above situation, in order to overcome the shortcomings of the prior art, the present invention provides a device for cleaning impurities on the inner wall of a thermal pipeline. According to the uneven distribution of impurities on the inner wall of the thermal pipeline, a local adaptive variable diameter telescopic and micro-rotating method is used. The technical effect of adapting to the entire environment in the pipeline is achieved; the combination of segmented cleaning and sweeping is used to achieve the technical effect of real-time and efficient cleaning of impurities in the pipeline.

The technical solution adopted by the present invention is as follows: The present invention provides a device for cleaning impurities on the inner wall of a thermal pipeline, which includes a cleaning walking mechanism for a rough reducing elbow pipe and a cleaning device for the inner wall of the pipeline. Mechanically, the rough reducing elbow cleaning traveling mechanism includes a support connector, a variable diameter telescopic component and an adaptive walking device. The variable diameter telescopic component is located on the support connector, and the adaptive traveling device is located on the variable diameter telescopic component. diameter expansion piece.

Further, the adaptive walking device includes a fixed plate, an adaptive rotation adjustment member and a transmission device. The fixed plate is connected to a variable diameter telescopic member, and the adaptive rotation adjustment member is rotatably mounted on the fixed plate. The transmission device is rotatably mounted on the fixed plate.

Preferably, the adaptive rotational adjustment member includes a rotational fit walking member and a walking belt. The rotational fit walking member is rotatably located between the fixed plates. The rotational fit walking member is symmetrically provided in two groups. The walking belt is sleeved on the rotating and fitting walking part.

Further, the rotating and fitting walking part includes a rotating plate, a rotating shaft, rotating teeth and a meshing wheel. The rotating shaft is rotated on the fixed plate, the rotating plate is rotated on the rotating shaft, and the rotating teeth is provided on the rotating shaft, the meshing wheel is rotated on the rotating plate, the meshing wheels are provided with two groups symmetrically, the rotating teeth are disposed between the meshing wheels, the rotating teeth are meshed and connected with the meshing wheels, and the The walking belt is sleeved on the meshing wheel; the outer circumferential wall of the meshing wheel is provided with protrusions, and the inner wall of the walking belt is provided with meshing protrusions. The meshing protrusions are connected to the protrusions to effectively prevent walking. The belt falls off and slips, achieving the technical effect of stable walking.

Further, the transmission device includes a reinforcement plate, a transmission component and a driving component. The reinforcement plate is provided on the outer wall of the fixed plate, the transmission component is rotatably provided on the reinforcement plate, and the driving component is provided on the reinforcement plate. , the transmission component and the driving component are connected through a rotating shaft.

As a further preference of the present invention, the transmission assembly includes a limiting plate, a transmission wheel and a transmission belt, the limiting plate is provided on the reinforcement plate, the transmission wheel is provided on the rotating shaft, and the transmission belt is sleeved on the transmission on the wheel; the outer circumferential wall of the transmission wheel is provided with an anti-slip protrusion, and the inner wall of the transmission belt is provided with an engaging protrusion, and the engaging protrusion and the anti-slip protrusion are engaged and connected.

Further, the driving assembly includes a driving gear, a meshing gear and a driving motor. The driving gear is arranged on the rotating shaft. The meshing gear is rotated on the reinforcing plate. The meshing gear is meshed with the driving gear. The driving motor is arranged on the reinforcing plate, and the output end of the driving motor is connected to the driving gear.

Further, the variable-diameter telescopic component includes a fixed end, a movable end, a support connecting rod, a hinged connecting rod and a telescopic spring. The fixed end is provided on the support connection body, and the movable end is engaged and slidably provided on the support connection body. on the support connecting rod, one end of the supporting connecting rod is hinged with the fixed plate, the other end of the supporting connecting rod is hinged with the movable end, one end of the hinged connecting rod is hinged with the center of the supporting connecting rod, and the The other end is hinged with the fixed end, and the telescopic spring is provided on the support connecting body and the movable end.

Wherein, the support connection body includes a support column, a connecting plate, a sliding column and an auxiliary wheel. The connecting plate is symmetrically arranged at both ends of the supporting column, the sliding column is arranged between the connecting plates, and the sliding column array is arranged on Outside the support column, the auxiliary wheel is rotatably mounted on the connecting plate.

Further, the pipeline inner wall cleaning device includes a universal movable end, a connecting column, a center plate, a support rod, a limit ring, a telescopic cleaning part and a cleaning motor. The universal movable end is provided on the connecting plate, and the connecting plate One end of the column is connected to the universal movable end, the cleaning motor is connected to the other end of the connecting column, the center plate is connected to the output end of the cleaning motor, the support rod is set on the center plate, and the limit ring is set On the support rod, the telescopic cleaning part is telescopically and slidingly provided in the limit ring; the telescopic cleaning part includes an impurity cleaning part and an impurity cleaning part, the limit ring is provided with a telescopic hole, the impurity cleaning part and The impurity cleaning parts are respectively telescopically and slidingly installed in the telescopic holes. The impurity cleaning parts include a cleaning telescopic column, a cleaning head, a cleaning adaptable spring and a limiting blocking plate. The cleaning telescopic column is telescopically and slidingly installed in the telescopic holes. The cleaning head is located on one end of the cleaning telescopic column, the limiting blocking plate is located on the other end of the cleaning telescopic column, the cleaning adapting spring is sleeved on the outside of the cleaning telescopic column, and the cleaning adapting spring is located on the cleaning head and the cleaning telescopic column. between the limit rings; the impurity cleaning member includes a cleaning telescopic column, a cleaning brush head, a cleaning adapting spring and a cleaning blocking plate. The cleaning telescopic column is telescopically located in the telescopic hole, and the cleaning brush head is located in the telescopic hole. One end of the cleaning telescopic column, the cleaning blocking plate is located at the other end of the cleaning telescopic column, the cleaning adapting spring is sleeved on the outside of the cleaning telescopic column, the cleaning adapting spring is located on the cleaning brush head and the limit ring There is a return spring between the connecting column and the connecting plate.

The beneficial effects achieved by the present invention by adopting the above structure are as follows: This solution provides a device for cleaning impurities on the inner wall of a thermal pipeline. According to the uneven distribution of impurities on the inner wall of the thermal pipeline, it adopts a combination of local adaptive variable diameter expansion and contraction and micro-rotation to achieve The technical effect of adapting to the entire environment in the pipeline is achieved; the combination of split cleaning and sweeping is used to achieve the technical effect of real-time and efficient cleaning of impurities in the pipeline.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of a thermal pipeline inner wall impurity cleaning device proposed by the present invention;

Figure 2 is a left view of a device for cleaning impurities on the inner wall of a thermal pipeline proposed by the present invention;

Figure 3 is a front view of a thermal pipeline inner wall impurity cleaning device proposed by the present invention;

Figure 4 is a schematic structural diagram of the rough reducing elbow cleaning traveling mechanism;

Figure 5 is a schematic structural diagram of the pipeline inner wall cleaning device;

Figure 6 is a schematic diagram of the back structure of the pipeline inner wall cleaning device;

Figure 7 is a schematic diagram of the combination of the support connector and the reducing telescopic part;

Figure 8 is a schematic structural diagram of the adaptive walking device;

Figure 9 is a schematic diagram of the back structure of the adaptive walking device;

Figure 10 is a schematic diagram of the internal structure of the adaptive walking device;

Figure 11 is a top view of the internal structure of the adaptive walking device;

Figure 12 is a schematic structural diagram of the rotating and fitting walking part.

Among them, 1. Rough reducing elbow cleaning traveling mechanism, 2. Pipe inner wall cleaning device, 3. Support connector, 4. Reducing telescopic parts, 5. Adaptive traveling device, 6. Fixed plate, 7. Adaptive Rotating adjustment part, 8. Transmission device, 9. Rotating and fitting traveling part, 10. Traveling belt, 11. Rotating plate, 12. Rotating shaft, 13. Rotating tooth, 14. Meshing wheel, 15. Protrusion, 16. Meshing Protrusion, 17. Reinforcement plate, 18. Transmission component, 19. Drive component, 20. Limit plate, 21. Transmission wheel, 22. Transmission belt, 23. Anti-slip protrusion, 24. Engagement protrusion, 25. Drive gear , 26. Meshing gear, 27. Driving motor, 28. Fixed end, 29. Movable end, 30. Support connecting rod, 31. Hinge connecting rod, 32. Telescopic spring, 33. Support column, 34. Connecting plate, 35. Sliding column, 36, auxiliary wheel, 37, universal movable end, 38, connecting column, 39, center plate, 40, support rod, 41, limit ring, 42, telescopic cleaning parts, 43, cleaning motor, 44, impurities Cleaning parts, 45. Impurity cleaning parts, 46. Telescopic hole, 47. Cleaning telescopic column, 48. Cleaning head, 49. Cleaning telescopic column, 50. Cleaning brush head, 51. Cleaning adaptation spring, 52. Cleaning blocking plate , 53. Return spring, 54. Cleaning and adapting spring, 55. Limit blocking plate.

The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them; based on The embodiments of the present invention and all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific location. orientation, construction and operation, and therefore should not be construed as limitations of the present invention.

As shown in Figure 1, the present invention provides a device for cleaning impurities on the inner wall of a thermal pipeline, which includes a rough reducing elbow cleaning traveling mechanism 1 and a pipeline inner wall cleaning device 2. The pipeline inner wall cleaning device 2 is located on the rough reducing elbow cleaning device. On the running gear 1.

As shown in Figures 1, 2, 3, 4, 7, 8, 9, 10, 11, and 12, the rough reducing elbow cleaning traveling mechanism 1 includes a support connector 3, The variable-diameter telescopic member 4 and the adaptive walking device 5. The variable-diameter telescopic member 4 is provided on the support connector 3, and the adaptive traveling device 5 is provided on the variable-diameter telescopic member 4; the support connector 3 includes Support column 33, connecting plate 34, sliding column 35 and auxiliary wheel 36. The connecting plate 34 is symmetrically arranged at both ends of the supporting column 33. The sliding column 35 is arranged between the connecting plates 34. The sliding column 35 is arranged in an array. Outside the support column 33, the auxiliary wheel 36 is rotated on the connecting plate 34; the variable diameter telescopic member 4 includes a fixed end 28, a movable end 29, a support connecting rod 30, a hinged connecting rod 31 and a telescopic spring 32, so The fixed end 28 is provided on the support connection body 3, the movable end 29 is engaged and slidably provided on the support connection body 3, one end of the support connection rod 30 is hinged with the fixed plate member 6, and the support connection rod 30 has The other end is hinged to the movable end 29, one end of the hinged connecting rod 31 is hinged to the center of the supporting connecting rod 30, the other end of the hinged connecting rod 31 is hinged to the fixed end 28, and the telescopic spring 32 is provided at the supporting connection. on the body 3 and the movable end 29; the adaptive walking device 5 includes a fixed plate 6, an adaptive rotation adjustment part 7 and a transmission device 8. The fixed plate 6 is connected to the variable diameter telescopic part 4, and the adaptive walking device 5 The rotation adjustment member 7 is rotated on the fixed plate 6, and the transmission device 8 is rotated on the fixed plate 6; the adaptive rotation adjustment member 7 includes a rotating and fitting walking member 9 and a walking belt 10. The rotating and fitting walking parts 9 are rotatably arranged between the fixed plates 6. There are two symmetrical groups of the rotating and fitting walking parts 9. The walking belt 10 is sleeved on the rotating and fitting walking parts 9; the rotating and fitting walking parts 9 are arranged symmetrically. The combined traveling member 9 includes a rotating plate 11, a rotating shaft 12, a rotating tooth 13 and a meshing wheel 14. The rotating shaft 12 is rotated on the fixed plate 6, and the rotating plate 11 is rotated on the rotating shaft 12. The rotating teeth 13 are arranged on the rotating shaft 12, and the meshing wheels 14 are rotated on the rotating plate 11. The meshing wheels 14 are symmetrically arranged in two groups, and the rotating teeth 13 are arranged between the meshing wheels 14. The teeth 13 are meshed and connected with the meshing wheel 14, and the walking belt 10 is sleeved on the meshing wheel 14; a protrusion 15 is provided on the outer circumferential wall of the meshing wheel 14, and a meshing protrusion is provided on the inner wall of the walking belt 10. 16, the engaging protrusion 16 is meshed and connected with the protrusion 15, effectively preventing the walking belt 10 from falling off and slipping, and achieving the technical effect of stable walking; the transmission device 8 includes a reinforcing plate 17, a transmission assembly 18 and a driving assembly 19. The reinforcement plate 17 is provided on the outer wall of the fixed plate 6, the transmission assembly 18 is rotatably provided on the reinforcement plate 17, the driving assembly 19 is provided on the reinforcement plate 17, the transmission assembly 18 and the driving assembly 19 pass through The rotating shaft 12 is connected; the transmission assembly 18 includes a limiting plate 20, a transmission wheel 21 and a transmission belt 22. The limiting plate 20 is provided on the reinforcement plate 17, and the transmission wheel 21 is provided on the rotating shaft 12. The transmission belt 22 is sleeved on the transmission wheel 21; an anti-slip protrusion 23 is provided on the outer circumferential wall of the transmission wheel 21, and an engaging protrusion 24 is provided on the inner wall of the transmission belt 22. The engaging protrusion 24 and The anti-slip protrusions 23 are meshed and connected; the driving assembly 19 includes a driving gear 25, a meshing gear 26 and a driving motor 27. The driving gear 25 is provided on the rotating shaft 12, and the meshing gear 26 is rotated on the reinforcing plate 17. The meshing gear 26 is meshed and connected with the driving gear 25 . The driving motor 27 is arranged on the reinforcing plate 17 . The output end of the driving motor 27 is connected with the driving gear 25 .

As shown in Figures 1, 5, 6, and 7, the pipeline inner wall cleaning device 2 includes a universal movable end 37, a connecting column 38, a center plate 39, a support rod 40, a limit ring 41, and a telescopic cleaning member 42 and a cleaning motor 43, the universal movable end 37 is provided on the connecting plate 34, one end of the connecting column 38 is connected to the universal movable end 37, the cleaning motor 43 is connected to the other end of the connecting column 38, the The center plate 39 is connected to the output end of the cleaning motor 43. The support rod 40 is provided on the center plate 39. The limit ring 41 is provided on the support rod 40. The telescopic cleaning member 42 telescopically slides and is provided on the limit ring. In 41; the telescopic cleaning member 42 includes an impurity cleaning member 44 and an impurity cleaning member 45. The limiting ring 41 is provided with a telescopic hole 46. The impurity cleaning member 44 and the impurity cleaning member 45 are respectively telescopically and slidingly provided on the telescopic member. In the hole 46, the impurity cleaning member 44 includes a cleaning telescopic column 47, a cleaning head 48, a cleaning adapting spring 54 and a limiting blocking plate 55. The cleaning telescopic column 47 is telescopically and slidingly disposed in the telescopic hole 46. The head 48 is located at one end of the cleaning telescopic column 47, the limiting blocking plate 55 is located at the other end of the cleaning telescopic column 47, the cleaning adapting spring 54 is sleeved on the outside of the cleaning telescopic column 47, the cleaning adapting spring 54 is located between the cleaning head 48 and the limiting ring 41; the impurity cleaning member 45 includes a cleaning telescopic column 49, a cleaning brush head 50, a cleaning adaptation spring 51 and a cleaning blocking plate 52. The cleaning telescopic column 49 telescopically Located in the telescopic hole 46, the cleaning brush head 50 is located at one end of the cleaning telescopic column 49, the cleaning blocking plate 52 is located at the other end of the cleaning telescopic column 49, and the cleaning adapting spring 51 is sleeved on the cleaning telescopic column 49. Outside the cleaning telescopic column 49 , the cleaning adaptation spring 51 is provided between the cleaning brush head 50 and the limiting ring 41 , and a return spring 53 is provided between the connecting column 38 and the connecting plate 34 .

During specific use, first connect the electrical components in the device to an external power supply and control switch, start the driving motor 27, the driving motor 27 rotates to drive the driving gear 25 to rotate, the driving gear 25 rotates to drive the meshing gear 26 to rotate, and the meshing gear 26 rotates to drive the rotating shaft. 12 rotates, the rotation of the rotating shaft 12 drives the rotating tooth 13 to rotate, the rotating tooth 13 rotates to drive the meshing wheel 14 to rotate, the meshing wheel 14 rotates to drive the walking belt 10 to rotate, and then travels in the pipeline, the rotating shaft 12 rotates and drives the transmission wheel 21 to rotate at the same time. The rotation of the transmission wheel 21 drives the rotation of the transmission belt 22, thereby achieving the technical effect of smooth movement of the device. During the process of cleaning, due to the irregular position, thickness, shape, etc. of the impurities adhering to the inner wall of the pipe, the traditional cleaning device cannot realize adaptive travel. , it can only shrink or expand as a whole, and is prone to slipping and being unable to move. However, the present invention can perform local adaptive shrinkage and diameter expansion, perfectly adapting to various conditions in the pipeline. When the inner diameter of the pipeline becomes smaller, walking The belt 10 is under pressure, and the fixed plate 6 moves in the direction close to the supporting connector 3. At this time, the telescopic spring 32 contracts, and the movable end 29 slides along the sliding column 35 away from the fixed end 28 to achieve diameter reduction; when impurities are adhered, When the walking belt 10 is pressed, the rotating plate 11 can also be driven to rotate to achieve the technical effect of micro-rotation adjustment and adaptation to meet the use of all conditions in the pipeline. The cleaning motor 43 is started, and the cleaning motor 43 rotates to drive the center plate 39 to rotate. The center plate The rotation of 39 drives the support rod 40 to rotate, the rotation of the support rod 40 drives the limit ring 41 to rotate, the rotation of the limit ring 41 drives the cleaning telescopic column 47 and the cleaning telescopic column 49 to rotate, and the impurities adhered in the pipe are rotated, polished, cleaned and brushed The dual technical effect of cleaning, the interval setting of grinding cleaning and brush cleaning, realizes the technical effect of real-time cleaning of impurities adhered in the pipeline, and achieves the purpose of efficient cleaning. The setting of cleaning adapting spring 54 and cleaning adapting spring 51, The technical effect of flexible local adaptation to different pipe diameters is achieved. The above is the specific work flow of the present invention, and this step can be repeated the next time it is used.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

The present invention and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person of ordinary skill in the art is inspired by the invention and without departing from the spirit of the invention, can devise structural methods and embodiments similar to the technical solution without inventiveness, they shall all fall within the protection scope of the invention.

Claims (10)

1. A device for cleaning impurities on the inner wall of a thermal pipeline, which is characterized in that: it includes a cleaning traveling mechanism (1) for a rough reducing elbow and a cleaning device (2) for the inner wall of the pipeline. The device (2) for cleaning the inner wall of the pipeline is located on the rough reducing elbow. On the elbow cleaning traveling mechanism (1); the rough reducing elbow cleaning traveling mechanism (1) includes a support connector (3), a reducing telescopic part (4) and an adaptive traveling device (5). The diameter telescopic part (4) is provided on the support connection body (3), and the adaptive walking device (5) is provided on the diameter-reducing telescopic part (4). 2. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 1, characterized in that: the adaptive walking device (5) includes a fixed plate (6), an adaptive rotation adjustment member (7) and a transmission device. (8), the fixed plate (6) is connected to the diameter-reducing telescopic part (4), the adaptive rotation adjustment part (7) is rotated on the fixed plate (6), and the transmission device (8) The rotation is located on the fixed plate (6). 3. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 2, characterized in that: the adaptive rotation adjustment member (7) includes a rotationally fitting walking member (9) and a walking belt (10), and the The rotating and fitting walking parts (9) are rotated between the fixed plates (6). The rotating and fitting walking parts (9) are symmetrically provided with two groups, and the walking belt (10) is sleeved on the rotating and fitting walking parts (9). On the running piece (9). 4. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 3, characterized in that: the rotating and fitting traveling part (9) includes a rotating plate (11), a rotating shaft (12), and a rotating tooth (13) and the meshing wheel (14), the rotating shaft (12) is rotated on the fixed plate (6), the rotating plate (11) is rotated on the rotating shaft (12), and the rotating teeth (13) are installed on the rotating shaft (12). On the rotating shaft (12), the meshing wheel (14) is rotated and installed on the rotating plate (11). The meshing wheel (14) is symmetrically provided with two groups, and the rotating teeth (13) are installed on the meshing wheel (11). 14), the rotating teeth (13) are meshed and connected with the meshing wheel (14), and the walking belt (10) is sleeved on the meshing wheel (14); on the outer circumferential wall of the meshing wheel (14) A protrusion (15) is provided, and an engaging protrusion (16) is provided on the inner wall of the walking belt (10). The engaging protrusion (16) is engaged and connected with the protrusion (15). 5. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 4, characterized in that: the transmission device (8) includes a reinforcing plate (17), a transmission assembly (18) and a driving assembly (19). The reinforcement plate (17) is provided on the outer wall of the fixed plate (6), the transmission component (18) is rotatably provided on the reinforcement plate (17), and the driving component (19) is provided on the reinforcement plate (17). The transmission component (18) and the driving component (19) are connected through a rotating shaft (12). 6. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 5, characterized in that: the transmission assembly (18) includes a limiting plate (20), a transmission wheel (21) and a transmission belt (22). The limiting plate (20) is provided on the reinforcing plate (17), the transmission wheel (21) is provided on the rotating shaft (12), and the transmission belt (22) is sleeved on the transmission wheel (21); An anti-slip protrusion (23) is provided on the outer circumferential wall of the transmission wheel (21), and an engaging protrusion (24) is provided on the inner wall of the transmission belt (22). The engaging protrusion (24) and the anti-slip protrusion are (23) Engaged and connected. 7. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 6, characterized in that: the driving assembly (19) includes a driving gear (25), a meshing gear (26) and a driving motor (27). The driving gear (25) is arranged on the rotating shaft (12), the meshing gear (26) is rotated on the reinforcing plate (17), the meshing gear (26) is meshed with the driving gear (25), and the driving gear (26) is connected to the driving gear (25). The motor (27) is located on the reinforcement plate (17), and the output end of the drive motor (27) is connected to the drive gear (25). 8. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 7, characterized in that: the variable diameter telescopic part (4) includes a fixed end (28), a movable end (29), and a supporting connecting rod (30) , hinged connecting rod (31) and telescopic spring (32), the fixed end (28) is located on the supporting connector (3), and the movable end (29) engages and slides on the supporting connector (3). , one end of the support connecting rod (30) is hinged with the fixed plate (6), the other end of the support connecting rod (30) is hinged with the movable end (29), and one end of the hinged connecting rod (31) is connected with The center of the supporting connecting rod (30) is hinged, the other end of the hinged connecting rod (31) is hinged with the fixed end (28), and the telescopic spring (32) is provided on the supporting connecting body (3) and the movable end (29) )superior. 9. A device for cleaning impurities on the inner wall of thermal pipelines according to claim 8, characterized in that: the support connector (3) includes a support column (33), a connecting plate (34), a sliding column (35) and an auxiliary Wheel (36), the connecting plates (34) are symmetrically arranged at both ends of the support column (33), the sliding columns (35) are arranged between the connecting plates (34), and the sliding column (35) array is arranged on Outside the support column (33), the auxiliary wheel (36) is rotatably mounted on the connecting plate (34). 10. A thermal pipeline inner wall impurity cleaning device according to claim 9, characterized in that: the pipeline inner wall cleaning device (2) includes a universal movable end (37), a connecting column (38), and a center plate (39) ), support rod (40), limit ring (41), telescopic cleaning part (42) and cleaning motor (43), the universal movable end (37) is located on the connecting plate (34), and the connecting column One end of (38) is connected to the universal movable end (37), the cleaning motor (43) is connected to the other end of the connecting column (38), and the center plate (39) is connected to the output end of the cleaning motor (43) , the support rod (40) is provided on the center plate (39), the limit ring (41) is provided on the support rod (40), and the telescopic cleaning member (42) telescopically slides and is provided on the limit ring (41). 41); the telescopic cleaning part (42) includes an impurity cleaning part (44) and an impurity cleaning part (45), the limit ring (41) is provided with a telescopic hole (46), and the impurity cleaning part (45) 44) and the impurity cleaning part (45) are telescopically and slidingly arranged in the telescopic hole (46) respectively. The impurity cleaning part (44) includes a cleaning telescopic column (47), a cleaning head (48), a cleaning adaptation spring (54) and Limiting and blocking plate (55), the cleaning telescopic column (47) is telescopically and slidingly provided in the telescopic hole (46), the cleaning head (48) is provided at one end of the cleaning telescopic column (47), the limiter The blocking plate (55) is located at the other end of the cleaning telescopic column (47). The cleaning adapting spring (54) is sleeved on the outside of the cleaning telescopic column (47). The cleaning adapting spring (54) is located on the cleaning head. (48) and the limit ring (41); the impurity cleaning part (45) includes a cleaning telescopic column (49), a cleaning brush head (50), a cleaning adaptation spring (51) and a cleaning blocking plate (52) ), the cleaning telescopic column (49) is telescopically located in the telescopic hole (46), the cleaning brush head (50) is located at one end of the cleaning telescopic column (49), and the cleaning blocking plate (52) is At the other end of the cleaning telescopic column (49), the cleaning adapting spring (51) is sleeved on the outside of the cleaning telescopic column (49), and the cleaning adapting spring (51) is provided on the cleaning brush head (50) and the limiter. A return spring (53) is provided between the position ring (41) and between the connecting column (38) and the connecting plate (34).