Pipe inner wall cleaning device

Abstract

The present disclosure relates to the technical field of laser cleaning, and particularly relates to a pipeline inner wall cleaning device, which comprises a laser cleaning head for emitting laser to clean the inner wall of the pipeline; a matching sleeve, the laser cleaning head is rotatably arranged in the matching sleeve through a rotating shaft; a fixed sleeve, the matching sleeve is fixedly installed in the fixed sleeve, and an optical fiber passes through the fixed sleeve and is connected to the laser cleaning head; two first driving parts, one of which is arranged at the top of the fixed sleeve, and the other is arranged at the bottom of the fixed sleeve, the first driving part is used for driving the fixed sleeve to move in the pipeline; an adjusting part, the first driving part is installed in the fixed sleeve through the adjusting part, and the distance between the first driving part and the fixed sleeve is adjusted through the adjusting part, so that the driving wheel of the first driving part abuts against the inner wall of the pipeline. Such an arrangement can ensure that the pipeline inner wall cleaning device can stably move in the pipeline, so as to realize the cleaning of the inner wall of the pipeline without dead angle, ensure the cleaning effect, improve the automatic degree of cleaning, and reduce manual intervention.

Description

Technical Field

[0001] This disclosure relates to the technical field of laser cleaning, and more particularly to a pipe inner wall cleaning device. Background Technology

[0002] In existing technologies, due to the limited internal space of pipelines, it is difficult to precisely control the laser cleaning head manually to clean the inside of the pipeline. For shorter pipelines, a bracket can be set up to mount the laser cleaning head, and the bracket can be pushed and the laser cleaning head rotated to clean the pipeline. However, this method is difficult to use when the pipeline is long, and the cleaning effect is poor.

[0003] Therefore, it is necessary to propose a pipe inner wall cleaning device to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] In view of this, a pipe inner wall cleaning device is provided according to an embodiment of the present disclosure, comprising: Laser cleaning head, used to emit laser light to clean the inner wall of pipes; The laser cleaning head is rotatably mounted on the aforementioned sleeve via a rotating shaft; A fixed housing is provided, and the aforementioned mating sleeve is fixedly installed on the fixed housing. An optical fiber passes through the fixed housing and is connected to the laser cleaning head. Two first driving units, one of which is disposed at the top of the fixed housing and the other is disposed at the bottom of the fixed housing, the first driving units being used to drive the fixed housing to move within the pipe; The adjustment unit is used to install the first drive unit on the fixed housing. The adjustment unit adjusts the distance between the first drive unit and the fixed housing so that the drive wheel of the first drive unit abuts against the inner wall of the pipe.

[0006] In one feasible embodiment, the above-mentioned pipe inner wall cleaning device further includes: The second drive unit is disposed inside the aforementioned rotating shaft and is used to drive the aforementioned rotating shaft to rotate relative to the aforementioned mating sleeve.

[0007] In one feasible implementation, the second drive unit includes: The first drive motor is disposed within the aforementioned rotating shaft; The first gear transmission mechanism drives the rotating shaft to rotate via the first drive motor.

[0008] In one feasible implementation, the laser cleaning head is provided with a focusing adjustment mechanism for focusing the emitted laser onto the inner wall of the pipe.

[0009] In one feasible implementation, the first driving unit includes: The support plate is installed on the top or bottom of the fixed housing via the adjustment part, and the support plate is provided with a mounting groove. The second drive motor is disposed in the aforementioned mounting slot; A first shaft is rotatably mounted on the support plate, and drive wheels are mounted at both ends of the first shaft. The second drive motor drives the first shaft to rotate through a second gear transmission mechanism.

[0010] In one feasible implementation, the first driving unit further includes: The second shaft is rotatably mounted on the aforementioned support plate; Driven wheels are located at both ends of the aforementioned second shaft; The second shaft and the first shaft are located at both ends of the support plate, respectively.

[0011] In one feasible implementation, the adjustment unit includes: The first screw has a first threaded hole at the top center of the fixed housing, and a first positioning hole at the middle of the support plate at the top of the fixed housing. One end of the first screw is screwed into the first threaded hole, and the other end is inserted into the first positioning hole. The second screw has a second threaded hole at the bottom center of the aforementioned fixed housing, and a second positioning hole at the center of the support plate at the bottom of the aforementioned fixed housing. One end of the second screw is screwed into the aforementioned second threaded hole, and the other end is inserted into the aforementioned second positioning hole.

[0012] In one feasible embodiment, the above-mentioned pipe inner wall cleaning device further includes: The first scale column is located on the support plate at the top of the fixed housing. The first scale column is disposed between the top of the fixed housing and the first support plate. The first scale column is used to display the moving distance of the first support plate. The second scale column is located between the bottom end of the fixed housing and the second support plate. The second scale column is used to display the moving distance of the second support plate.

[0013] In one feasible embodiment, the above-mentioned pipe inner wall cleaning device further includes: The first guide post is fixedly installed at the top of the aforementioned fixed housing, and the aforementioned first support plate passes through the aforementioned first guide post; The second guide post is fixedly installed at the bottom end of the aforementioned fixed housing, and the aforementioned second support plate passes through the aforementioned second guide post.

[0014] In one feasible implementation, notches are provided at the top and bottom of the fixed housing corresponding to the positions of the drive wheel and the driven wheel.

[0015] Compared to existing technologies, this disclosure offers at least the following advantages: The pipe inner wall cleaning device provided in this embodiment includes a laser cleaning head, a mating sleeve, a fixed housing, a first driving unit, and an adjusting unit. The laser cleaning head can rotate relative to the mating sleeve via a rotating shaft, thereby emitting a rotating laser to clean the inner wall of the pipe. The fixed housing fixes the mating sleeve, and two first driving units are symmetrically arranged at the top and bottom of the fixed housing. The adjusting unit can adjust the distance between the two first driving units and the top and bottom of the fixed housing according to the inner diameter of the pipe to be cleaned, ensuring that the driving wheels of both driving units abut against the inner wall of the pipe. This ensures that the entire pipe inner wall cleaning device can move stably inside the pipe, achieving thorough cleaning of the inner wall without dead angles, guaranteeing cleaning effectiveness, improving the degree of automation, and reducing manual intervention. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic structural diagram of a pipe inner wall cleaning device according to an embodiment of the present disclosure, taken from one angle. Figure 2 This is a schematic structural diagram of a pipe inner wall cleaning device according to an embodiment of the present disclosure from another angle; Figure 3 This is a schematic structural diagram of a pipe inner wall cleaning device according to an embodiment of the present disclosure from another angle.

[0017] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Pipe inner wall cleaning device, 110 Laser cleaning head, 111 Rotary shaft, 120 Mating sleeve, 130 Fixed housing, 141 First support plate, 142 Second support plate, 143 Second drive motor, 144 Drive wheel, 145 Driven wheel, 151 First screw, 152 Second screw, 161 First scale column, 162 Second scale column, 171 First guide column, 172 Second guide column, 180 Optical fiber, 200 Pipe inner wall. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0019] like Figures 1 to 3 As shown, according to an embodiment of this disclosure, a pipe inner wall cleaning device 100 is provided, comprising: a laser cleaning head 110 for emitting laser light to clean the inner wall 200 of a pipe; a mating sleeve 120, wherein the laser cleaning head 110 is rotatably disposed on the mating sleeve 120 via a rotating shaft 111; a fixed housing 130, wherein the mating sleeve 120 is fixedly installed on the fixed housing 130, and an optical fiber 180 passes through the fixed housing 130 and is connected to the laser cleaning head 110; two first driving units, one disposed at the top of the fixed housing 130 and the other disposed at the bottom of the fixed housing, wherein the first driving units are used to drive the fixed housing 130 to move within the pipe; and an adjusting unit, wherein the first driving units are mounted on the fixed housing 130 via the adjusting unit, and the distance between the first driving units and the fixed housing 130 is adjusted by the adjusting unit so that the driving wheel 144 of the first driving unit abuts against the inner wall 200 of the pipe.

[0020] It is understood that the pipe inner wall cleaning device 100 provided in this embodiment may be provided with a laser cleaning head 110, a mating sleeve 120, a fixed housing 130, a first driving part, and an adjusting part. The laser cleaning head 110 can rotate relative to the mating sleeve 120 via a rotating shaft 111, thereby emitting a rotating laser to clean the inner wall of the pipe. The fixed housing 130 fixes the mating sleeve 120. Two first driving parts are symmetrically arranged at the top and bottom of the fixed housing 130. The adjusting part can adjust the distance between the two first driving parts and the top and bottom of the fixed housing 130 according to the inner diameter of the pipe to be cleaned, thereby ensuring that the driving wheels 144 of both driving parts abut against the inner wall 200 of the pipe. This ensures that the entire pipe inner wall cleaning device 100 can move stably inside the pipe, achieving thorough cleaning of the inner wall 200 without dead angles, ensuring cleaning effect, improving the degree of automation, and reducing manual intervention.

[0021] It should be noted that the mating sleeve 120 and the rotating shaft 111 must be coaxially arranged, and the surface of the mating sleeve 120 is smooth to reduce friction between it and the rotating shaft 111 and ensure smooth rotation.

[0022] In some examples, the pipe inner wall cleaning device 100 further includes a second drive unit disposed within the rotating shaft 111 for driving the rotating shaft 111 to rotate relative to the mating sleeve 120.

[0023] It is understood that the pipe inner wall cleaning device 100 may also be provided with a second drive unit, which can drive the rotating shaft 111 to rotate relative to the mating sleeve 120, thereby realizing the rotation of the laser cleaning head 110 so that the emitted laser can clean the pipe inner wall 200 360°.

[0024] In some examples, the second drive unit includes: a first drive motor disposed within the rotating shaft 111; and a first gear transmission mechanism through which the first drive motor drives the rotating shaft 111 to rotate.

[0025] Understandably, the second drive unit may be equipped with a first drive motor and a first gear transmission mechanism. The first transmission mechanism includes a first driving gear and a first driven gear. The first driving gear is connected to the power output shaft of the first drive motor, and the first driven gear meshes with the first driving gear and is connected to the rotating shaft 111. Starting the first drive motor drives the first driving gear to rotate, which in turn drives the rotating shaft 111 to rotate, thus rotating the laser cleaning head 110 so that the emitted laser can perform 360° cleaning of the inner wall 200 of the pipe.

[0026] In some examples, the laser cleaning head 110 is provided with a focusing adjustment mechanism for focusing the emitted laser onto the inner wall 200 of the pipe.

[0027] Understandably, the laser cleaning head 110 can be equipped with a focusing adjustment mechanism. When dealing with pipes of different inner diameters, the laser emitted by the laser cleaning head 110 can be focused on the inner wall of the pipe through the focusing adjustment mechanism, so that the laser energy is more concentrated and the cleaning effect is improved.

[0028] In some examples, such as Figures 1 to 3 As shown, the first driving unit includes: a support plate, which is installed on the top or bottom of the fixed housing 130 via the adjustment unit, and the support plate is provided with a mounting groove; a second driving motor 143, which is disposed in the mounting groove; a first shaft, which is rotatably disposed on the support plate, and the driving wheels 144 are disposed at both ends of the first shaft, and the second driving motor 143 drives the first shaft to rotate via a second gear transmission mechanism.

[0029] It is understood that the first drive unit may be provided with a first support plate 141 and a second support plate 142. The first support plate 141 can be installed on the top of the fixed housing 130 via an adjustment mechanism, and the second support plate 142 can be installed on the bottom of the fixed housing 130 via an adjustment mechanism. Both the first support plate 141 and the second support plate 142 have mounting slots on their sides away from the fixed housing 130, allowing the second drive motor 143 to be mounted within the mounting slots. Two drive wheels 144 can be mounted on both ends of each first shaft. The second gear transmission mechanism is provided with a second driving gear and a second driven gear. The second driving gear is connected to the power output shaft of the second drive motor 143, and the second driven gear meshes with the second driving gear. The first shaft is connected to the second driven gear, so that the second drive motor 143 drives the first shaft to rotate the drive wheels 144. After confirming the inner diameter of the pipe to be cleaned, the distance between the first support plate 141 and the top of the fixed housing 130, and the distance between the second support plate 142 and the bottom of the fixed housing 130 are adjusted by the adjustment unit so that the drive wheels 144 at the first support plate 141 and the second support plate 142 are both in contact with the inner wall 200 of the pipe. Then, the two second drive motors 143 can be started to drive the drive wheels 144 at the first support plate 141 and the second support plate 142 to rotate, so as to realize the stable movement of the pipe inner wall cleaning device 100 in the pipe and improve reliability.

[0030] In some examples, such as Figure 1 and Figure 2 As shown, the first drive unit further includes: a second shaft rotatably disposed on the support plate; and driven wheels 145 disposed at both ends of the second shaft; wherein the second shaft and the first shaft are respectively located at both ends of the support plate.

[0031] It is understood that the first drive unit may also be provided with a second shaft and a driven wheel 145. Both the first support plate 141 and the second support plate 142 may be provided with a second shaft, and a driven wheel 145 is provided at each end of the second shaft. The second shaft and the first shaft are respectively located at both ends of the support plate, so that the support plate can be supported by the drive wheel 144 and the driven wheel 145. The rotation of the drive wheel 144 drives the driven wheel 145 to rotate, ensuring smooth movement.

[0032] In some examples, such as Figures 1 to 3As shown, the adjustment part includes: a first screw 151, a first threaded hole is provided at the middle of the top end of the fixed housing 130, a first positioning hole is provided at the middle of the support plate at the top end of the fixed housing 130, one end of the first screw 151 is screwed into the first threaded hole, and the other end is inserted into the first positioning hole; a second screw 152, a second threaded hole is provided at the middle of the bottom end of the fixed housing 130, a second positioning hole is provided at the middle of the support plate at the bottom end of the fixed housing 130, one end of the second screw 152 is screwed into the second threaded hole, and the other end is inserted into the second positioning hole.

[0033] Understandably, the first screw 151 supports the first support plate 141, and the distance of the first screw 151 extending beyond the top of the fixed housing 130 can be adjusted by turning the first screw 151, thereby adjusting the distance between the top of the first support plate 141 and the top of the fixed housing 130. Simultaneously, the second screw 152 provides tension to the second support plate 142, and the distance of the second screw 152 extending beyond the bottom of the fixed housing 130 can be adjusted by turning the second screw 152, thereby adjusting the distance between the bottom of the second support plate 142 and the bottom of the fixed housing 130. The independent adjustment of the distance between the first support plate 141 and the second support plate 142 through the first screw 151 and the second screw 152 ensures precise adjustment. The first screw 151 is located in the middle of the first support plate 141 to ensure force balance on the first support plate 141; the second screw 152 is located in the middle of the second support plate 142 to ensure force balance on the second support plate 142, improving stability.

[0034] In some examples, such as Figure 1 As shown, the pipe inner wall cleaning device 100 further includes: a first scale column 161, a first support plate 141 located at the top of the fixed housing 130, the first scale column 161 being disposed between the top of the fixed housing 130 and the first support plate 141, the first scale column 161 being used to display the moving distance of the first support plate 141; and a second scale column 162, a second support plate 142 located at the bottom of the fixed housing 130, the second scale column 162 being disposed between the bottom of the fixed housing 130 and the second support plate 142, the second scale column 162 being used to display the moving distance of the second support plate 142.

[0035] Understandably, the first scale post 161 can be positioned between the top of the fixed housing 130 and the first support plate 141. When the first screw 151 adjusts the distance between the first support plate 141 and the fixed housing 130, the movement distance of the first support plate 141 can be read according to the first scale post 161, ensuring that the adjustment distance of the first support plate 141 is more accurate. The second scale post 162 can be positioned between the bottom of the fixed housing 130 and the second support plate 142. When the second screw 152 adjusts the distance between the second support plate 142 and the fixed housing 130, the movement distance of the second support plate 142 can be read according to the second scale post 162, ensuring that the adjustment distance of the second support plate 142 is more accurate. With this configuration, the drive wheel 144 can stably abut against the inner wall 200 of the pipe, ensuring that the drive wheel 144 rolls smoothly.

[0036] In some examples, such as Figure 1 As shown, the pipe inner wall cleaning device 100 further includes: a first guide post 171, which is fixedly disposed at the top end of the fixed housing 130, and the first support plate 141 passes through the first guide post 171; and a second guide post 172, which is fixedly disposed at the bottom end of the fixed housing 130, and the second support plate 142 passes through the second guide post 172.

[0037] It is understandable that the pipe inner wall cleaning device 100 may also be provided with a first guide post 171 and a second guide post 172. Multiple first guide posts 171 can be provided, respectively located on both sides of the first screw 151. The bottom of each first guide post 171 can be fixed to the top of the fixed housing 130, and the first support plate 141 can be inserted through the first guide post 171. When adjusting the distance between the first support plate 141 and the top of the fixed housing 130 through the first screw 151, the first guide post 171 can guide the movement direction of the first support plate 141. Multiple second guide posts 172 can be provided, respectively located on both sides of the second screw 152. The top of each second guide post 172 can be fixed to the bottom of the fixed housing 130, and the second support plate 142 can be inserted through the second guide post 172. When adjusting the distance between the second support plate 142 and the bottom of the fixed housing 130 through the second screw 152, the second guide post 172 can guide the movement direction of the second support plate 142. This arrangement can ensure that the movement direction of the first support plate 141 and the second support plate 142 is accurate and reliable, and improve stability.

[0038] In some examples, such as Figure 1 As shown, notches are provided at the top and bottom of the fixed housing 130 corresponding to the positions of the drive wheel 144 and the driven wheel 145.

[0039] It is understandable that a notch can be provided at the top of the fixed housing 130 corresponding to the position of the drive wheel 144 and driven wheel 145 of the first support plate 141, and a notch can also be provided at the bottom of the fixed housing 130 corresponding to the position of the drive wheel 144 and driven wheel 145 of the second support plate 142. With this configuration, when cleaning pipes with smaller inner diameters, the first screw 151 can drive the first support plate 141 to move closer to the top of the fixed housing 130, so that the drive wheel and driven wheel 145 of the first support plate 141 can be inserted into the notch to avoid interference. At the same time, the second screw 152 can drive the second support plate 142 to move closer to the bottom of the fixed housing 130, so that the drive wheel and driven wheel 145 of the second support plate 142 can be inserted into the notch to avoid interference. This also increases the range of pipe inner diameters that the pipe inner wall cleaning device 100 can clean, thus improving its applicability.

[0040] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0041] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0042] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0045] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0046] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0047] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A pipe inner wall cleaning device, characterized in that, include: Laser cleaning head, used to emit laser light to clean the inner wall of pipes; The laser cleaning head is rotatably mounted on the fitting sleeve via a rotating shaft; A fixed housing is provided, and the mating sleeve is fixedly installed on the fixed housing. An optical fiber passes through the fixed housing and is connected to the laser cleaning head. Two first driving units, one of which is disposed at the top of the fixed housing and the other is disposed at the bottom of the fixed housing, the first driving units being used to drive the fixed housing to move within the pipe; An adjustment section is provided, wherein the first drive unit is mounted on the fixed housing via the adjustment section, and the distance between the first drive unit and the fixed housing is adjusted via the adjustment section so that the drive wheel of the first drive unit abuts against the inner wall of the pipe.

2. The pipe inner wall cleaning device according to claim 1, characterized in that, Also includes: The second drive unit is disposed inside the rotating shaft and is used to drive the rotating shaft to rotate relative to the mating sleeve.

3. The pipe inner wall cleaning device according to claim 2, characterized in that, The second drive unit includes: A first drive motor is disposed within the rotating shaft; The first gear transmission mechanism is used to drive the rotating shaft to rotate via the first drive motor.

4. The pipe inner wall cleaning device according to claim 1, characterized in that, The laser cleaning head is equipped with a focusing adjustment mechanism to focus the emitted laser onto the inner wall of the pipe.

5. The pipe inner wall cleaning device according to claim 1, characterized in that, The first driving unit includes: The support plate is installed on the top or bottom of the fixed housing via the adjustment part, and the support plate is provided with a mounting groove; The second drive motor is disposed within the mounting slot; A first shaft is rotatably mounted on the support plate, and drive wheels are located at both ends of the first shaft. A second drive motor drives the first shaft to rotate through a second gear transmission mechanism.

6. The pipe inner wall cleaning device according to claim 5, characterized in that, The first driving unit further includes: The second shaft is rotatably mounted on the support plate; Driven wheels are disposed at both ends of the second shaft; The second shaft and the first shaft are located at opposite ends of the support plate.

7. The pipe inner wall cleaning device according to claim 5, characterized in that, The adjustment unit includes: The first screw has a first threaded hole at the top center of the fixed housing, and a first positioning hole at the middle of the support plate at the top of the fixed housing. One end of the first screw is screwed into the first threaded hole, and the other end is inserted into the first positioning hole. The second screw has a second threaded hole at the bottom center of the fixed housing, and a second positioning hole at the center of the support plate at the bottom of the fixed housing. One end of the second screw is screwed into the second threaded hole, and the other end is inserted into the second positioning hole.

8. The pipe inner wall cleaning device according to claim 5, characterized in that, Also includes: The first scale column is located between the top of the fixed shell and the first support plate, and the first scale column is used to display the moving distance of the first support plate. The second scale column is located between the bottom end of the fixed shell and the second support plate, and is used to display the moving distance of the second support plate.

9. The pipe inner wall cleaning device according to claim 5, characterized in that, Also includes: The first guide post is fixedly installed at the top of the fixed housing, and the first support plate passes through the first guide post; The second guide post is fixedly installed at the bottom end of the fixed housing, and the second support plate passes through the second guide post.

10. The pipe inner wall cleaning device according to claim 6, characterized in that, The top and bottom ends of the fixed housing are provided with notches corresponding to the positions of the drive wheel and the driven wheel.

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