Laser cleaning device for inner wall of pipeline

Abstract

The present invention relates to the technical field of pipeline inner wall cleaning, and discloses a laser cleaning device for pipeline inner walls, comprising a pipeline robot, an assembly box fixedly connected to the pipeline robot, a drive motor installed inside the assembly box, a laser cleaning component provided on the assembly box, the laser cleaning component used to laser clean the pipeline inner wall, an adjustment component provided on the assembly box, the adjustment component used to adjust the laser cleaning component, and a grinding component provided on the assembly box, the grinding component used to grind and clean the pipeline inner wall after laser cleaning. When the laser cleaning device for pipeline inner walls proposed by the present invention is in use, the device can utilize the power of the drive motor to absorb the smoke generated during the laser cleaning process, without the need to separately provide independent smoke absorption equipment, thereby reducing the operating cost of the device and facilitating the popularization and promotion of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline inner wall cleaning, and in particular to a laser cleaning device for pipeline inner walls. Background Art

[0002] When pipelines are used in different fields, the surface quality and cleanliness requirements of the inner wall of the pipeline are also different. It is often necessary to deburr or remove rust on the pipeline to improve its surface quality. In recent years, due to the rapid development of laser technology, the use of laser to clean the inner wall of the pipeline has been widely used.

[0003] The laser pipe inner wall cleaning device in the prior art has at least the following deficiencies in actual use: (1) The laser cleaning device generates smoke when cleaning the inner wall of the pipe. The laser cleaning device in the prior art is generally used in conjunction with an independent exhaust device to collect the smoke generated during the cleaning process, which increases the operating cost of the device and is not conducive to the popularization and promotion of the device; (2) The existing laser cleaning device only has the function of laser cleaning and cannot grind and polish the inner wall of the pipe after cleaning, which limits the cleaning effect on the inner wall of the pipe.

[0004] Therefore, it is necessary to design a laser cleaning device for the inner wall of the pipeline to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser cleaning device for the inner wall of a pipeline.

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

[0007] A laser cleaning device for the inner wall of a pipe includes a pipe robot, an assembly box is fixedly connected to the pipe robot, a drive motor is installed inside the assembly box, a laser cleaning component is provided on the assembly box, the laser cleaning component is used to laser clean the inner wall of the pipe, an adjustment component is provided on the assembly box, the adjustment component is used to adjust the laser cleaning component, a grinding component is provided on the assembly box, the grinding component is used to grind and clean the inner wall of the pipe after laser cleaning, and the assembly box is also provided with an absorption component and a collection component that cooperate with each other, the absorption component and the collection component are used to absorb the smoke generated during the laser cleaning process.

[0008] As a preferred technical solution of the present invention, the laser cleaning assembly includes a rotating seat, a rotating disk, several outer cylinders, several inner rods, several springs and several laser cleaning devices. The rotating seat passes through the assembly box and is fixedly connected to the assembly box. The rotating disk is fixedly connected to one end of the rotating seat located outside the assembly box. Several outer cylinders are fixedly connected to the outer edge of the rotating disk. Several inner rods are respectively movably assembled in the several outer cylinders. One end of several springs is respectively connected to the several outer cylinders, and the other end of several springs is respectively connected to the several inner rods. One end of several inner rods extends to the outside of the corresponding outer cylinder. Several laser cleaning devices are respectively installed on one end of several inner rods located outside the corresponding outer cylinder.

[0009] As a preferred technical solution of the present invention, the adjustment assembly includes a cylinder, several control blocks, a movable frame, several connecting rods, several wheel frames, several rollers and several slides. The cylinder is installed on the assembly box, the movable frame is slidingly sleeved on the assembly box, several control blocks are fixedly connected to the movable frame, one end of several connecting rods are respectively fixedly connected to several inner rods, the other ends of several connecting rods are respectively fixedly connected to several wheel frames, several rollers are respectively rotatably assembled on several wheel frames, several rollers are respectively in contact with several control blocks, several slides are respectively opened on several outer cylinders, and several connecting rods are respectively slidably assembled in several slides.

[0010] As a preferred technical solution of the present invention, the grinding assembly includes several outer cylinders (II), several inner rods (II), several springs (II), several fixed plates, several grinding plates and several fixed rods, one end of several fixed rods are respectively fixedly connected to several outer cylinders (I), the other end of several fixed rods are respectively fixedly connected to several outer cylinders (II), several inner rods (II) are respectively slidably assembled in several outer cylinders (II), one end of several springs (II) are respectively connected to several outer cylinders (II), the other end of several springs (II) are respectively connected to several inner rods (II), one end of several inner rods (II) extend to the outside of the corresponding outer cylinders (II), several fixed plates are respectively fixedly connected to one end of several inner rods (II) located outside the corresponding outer cylinders (II), and several grinding plates are respectively mounted on several fixed plates.

[0011] As a preferred technical solution of the present invention, the absorption component includes a screw, an annular plate, a movable plate, a guide rod, a capsule, two air pipes and two one-way valves, one end of the screw is axially connected to the output shaft of the driving motor, the other end of the screw is fixedly connected to the rotating seat, the annular plate is fixedly connected to the inner surface of the assembly box, the movable plate is threadedly sleeved on the screw, the guide rod is fixedly connected to the inner surface of the assembly box, the movable plate is threadedly sleeved on the screw, the movable plate is slidably sleeved on the guide rod, one end of the capsule is connected to the annular plate, the other end of the capsule is connected to the movable plate, one end of the two air pipes are interconnected with the capsule, the two one-way valves are respectively installed on the two air pipes, and the ends of the two air pipes away from the capsule extend to the outside of the assembly box.

[0012] As a preferred technical solution of the present invention, the collection assembly includes an absorption box, several absorption tubes and several suction hoods. The absorption box is fixedly connected to the side of the rotating disk, one end of several absorption tubes are connected to the absorption box, several suction hoods are respectively connected to several absorption tubes, and several suction hoods are respectively arranged opposite to several laser cleaning devices, and the absorption box is connected to the end of one of the air tubes away from the capsule through a rotary joint.

[0013] As a preferred technical solution of the present invention, the flow limiting directions of the two one-way valves are opposite.

[0014] As a preferred technical solution of the present invention, the control block is provided with an inclined surface.

[0015] The present invention has the following beneficial effects:

[0016] 1. By setting up an absorption component and a collection component, under the cooperation of the absorption component and the collection component, the absorption box can absorb the smoke generated during the laser cleaning process through a number of absorption tubes and a number of suction hoods. In this way, the device can use the power of the driving motor to absorb the smoke generated during the laser cleaning process, without the need to set up an independent smoke absorption device, thereby reducing the operating cost of the device and facilitating the popularization and promotion of the device;

[0017] 2. By setting up a grinding component, several grinding plates can grind the parts of the inner wall of the pipe after laser cleaning when rotating, thereby improving the cleaning effect of the device on the inner wall of the pipe;

[0018] 3. By setting up a laser cleaning component and an adjustment component, the staff can adjust the positions of several laser cleaning devices through the adjustment component, so that several laser cleaning devices can perform laser cleaning on pipes of different sizes, thereby expanding the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic structural diagram of a laser cleaning device for the inner wall of a pipeline proposed by the present invention;

[0020] Figure 2 This is an enlarged view of the structure at point A of a laser cleaning device for the inner wall of a pipeline proposed by the present invention;

[0021] Figure 3 This is an enlarged view of the structure at point B of a laser cleaning device for the inner wall of a pipeline proposed by the present invention;

[0022] Figure 4 This is an enlarged view of the structure at point C of a laser cleaning device for the inner wall of a pipeline proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of a grinding component in a laser cleaning device for the inner wall of a pipe proposed by the present invention.

[0024] In the figure: 1 pipeline robot, 2 assembly box, 3 drive motor, 4 laser cleaning component, 41 rotating seat, 42 rotating disk, 43 outer cylinder one, 44 inner rod one, 45 spring one, 46 laser cleaning device, 5 adjustment component, 51 cylinder, 52 control block, 53 moving frame, 54 connecting rod, 55 wheel frame, 56 roller, 57 slideway, 6 polishing component, 61 outer cylinder two, 62 inner rod two, 63 spring two, 64 fixed plate, 65 polishing plate, 66 fixed rod, 7 absorption component, 71 screw rod, 72 annular plate, 73 moving plate, 74 guide rod, 75 capsule, 76 air pipe, 77 one-way valve, 8 collection component, 81 absorption box, 82 absorption tube, 83 suction hood. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-5 A laser cleaning device for the inner wall of a pipeline includes a pipeline robot 1, an assembly box 2 is fixedly connected to the pipeline robot 1, a drive motor 3 is installed inside the assembly box 2, a laser cleaning component 4 is provided on the assembly box 2, and the laser cleaning component 4 is used to perform laser cleaning on the inner wall of the pipeline, an adjustment component 5 is provided on the assembly box 2, and the adjustment component 5 is used to adjust the laser cleaning component 4, and a grinding component 6 is provided on the assembly box 2, and the grinding component 6 is used to grind and clean the inner wall of the pipeline after laser cleaning. The assembly box 2 is also provided with an absorption component 7 and a collection component 8 that cooperate with each other, and the absorption component 7 and the collection component 8 are used to absorb the smoke generated during the laser cleaning process.

[0027] Reference Figure 3The laser cleaning assembly 4 includes a rotating seat 41, a rotating disk 42, a plurality of outer cylinders 43, a plurality of inner rods 44, a plurality of springs 45 and a plurality of laser cleaning devices 46. The rotating seat 41 passes through the assembly box 2 and is fixedly connected to the assembly box 2. The rotating disk 42 is fixedly connected to one end of the rotating seat 41 located outside the assembly box 2. The plurality of outer cylinders 43 are fixedly connected to the outer edge of the rotating disk 42. The plurality of inner rods 44 are respectively movably assembled in the plurality of outer cylinders 43. One end of the plurality of springs 45 is respectively connected to the plurality of outer cylinders 43. The other end of the plurality of springs 45 is respectively connected to the plurality of inner rods 44. One end of the plurality of inner rods 44 extends to the outside of the corresponding outer cylinder 43. The plurality of laser cleaning devices 46 are respectively installed on one end of the plurality of inner rods 44 located outside the corresponding outer cylinder 43.

[0028] Reference Figure 1 The adjusting assembly 5 includes a cylinder 51, several control blocks 52, a moving frame 53, several connecting rods 54, several wheel frames 55, several rollers 56 and several slides 57. The cylinder 51 is installed on the assembly box 2, and the moving frame 53 is slidably sleeved on the assembly box 2. The several control blocks 52 are fixedly connected to the moving frame 53, one end of the several connecting rods 54 is fixedly connected to the several inner rods 44, and the other ends of the several connecting rods 54 are fixedly connected to the several wheel frames 55. The several rollers 56 are rotatably assembled on the several wheel frames 55, and the several rollers 56 are respectively in contact with the several control blocks 52. By arranging the rollers 56, the friction between the connecting rod 54 and the control block 52 when rotating can be reduced. The several slides 57 are respectively opened on the several outer cylinders 43, and the several connecting rods 54 are respectively slidably assembled in the several slides 57. By arranging the adjusting assembly 5, it is easy to adjust the positions of the several laser cleaning devices 46, so that the device can clean pipes of different sizes.

[0029] Reference Figure 5The grinding assembly 6 includes a plurality of outer cylinders 61, a plurality of inner rods 62, a plurality of springs 63, a plurality of fixing plates 64, a plurality of grinding plates 65 and a plurality of fixing rods 66. One end of the plurality of fixing rods 66 is fixedly connected to the plurality of outer cylinders 43, and the other end of the plurality of fixing rods 66 is fixedly connected to the plurality of outer cylinders 61. The plurality of inner rods 62 are slidably assembled in the plurality of outer cylinders 61. One end of the plurality of springs 63 is connected to the plurality of outer cylinders 61, and the other end of the plurality of springs 63 is connected to the plurality of inner rods 62. By setting the springs 63, the plurality of springs 63 are fixedly connected to the plurality of outer cylinders 61. Under the elastic force of the second 63, the several grinding plates 65 can always fit tightly with the inner wall of the pipe, so that the grinding assembly 6 can be suitable for pipes of different sizes. One end of the several inner rods 2 62 extends to the outside of the corresponding outer cylinder 2 61, and the several fixed plates 64 are respectively fixedly connected to the ends of the several inner rods 2 62 located outside the corresponding outer cylinder 2 61. The several grinding plates 65 are respectively installed on the several fixed plates 64. By setting up the grinding assembly 6, the several grinding plates 65 can grind the parts of the inner wall of the pipe after laser cleaning when rotating, thereby improving the cleaning effect of the device on the inner wall of the pipe.

[0030] Reference Figure 3-4 The absorption component 7 includes a screw rod 71, an annular plate 72, a movable plate 73, a guide rod 74, a capsule 75, two air pipes 76 and two one-way valves 77. One end of the screw rod 71 is connected to the output shaft of the drive motor 3, and the other end of the screw rod 71 is fixedly connected to the rotating seat 41. The annular plate 72 is fixedly connected to the inner surface of the assembly box 2, the movable plate 73 is threadedly sleeved on the screw rod 71, the guide rod 74 is fixedly connected to the inner surface of the assembly box 2, the movable plate 73 is threadedly sleeved on the screw rod 71, the movable plate 73 is slidably sleeved on the guide rod 74, and one end of the capsule 75 is connected to the screw rod 71. The annular plate 72 is connected, and the other end of the capsule 75 is connected to the movable plate 73. The cross-section of the capsule 75 is annular. The screw rod 71 passes through the middle of the capsule 75, and the screw rod 71 and the capsule 75 do not contact each other to avoid wear between the screw rod 71 and the capsule 75. One end of the two air pipes 76 is interconnected with the capsule 75, and two one-way valves 77 are respectively installed on the two air pipes 76. The ends of the two air pipes 76 away from the capsule 75 extend to the outside of the assembly box 2. By setting the absorption component 7, it is convenient to absorb the smoke generated during the laser cleaning process.

[0031] Reference Figure 3The collection component 8 includes an absorption box 81, several absorption tubes 82 and several suction hoods 83. The absorption box 81 is fixedly connected to the side of the rotating disk 42. One end of the several absorption tubes 82 is connected to the absorption box 81. The several suction hoods 83 are respectively connected to the several absorption tubes 82, and the several suction hoods 83 are respectively arranged opposite to the several laser cleaning devices 46, so as to absorb the smoke generated during the laser cleaning process. The absorption box 81 is connected to one end of one of the air pipes 76 away from the capsule 75 through a rotary joint, so as to facilitate relative rotation between the absorption box 81 and the corresponding air pipe 76.

[0032] Reference Figure 4 The two one-way valves 77 have opposite flow limiting directions. Specifically, one of the one-way valves 77 limits the airflow to only enter the capsule 75 , and the other one-way valve 77 limits the airflow to only flow out of the capsule 75 .

[0033] Reference Figure 1 The control block 52 is provided with an inclined surface to facilitate the movement of the inner rod 44 under the action of the control block 52.

[0034] The specific working principle of the present invention is as follows:

[0035] The staff first adjusts the position of the laser cleaning devices 46 according to the size of the pipeline. When adjusting, the staff starts the cylinder 51. When the cylinder 51 is running, it can drive the mobile frame 53 to slide on the assembly box 2. During the movement, the mobile frame 53 can drive the control blocks 52 to move toward the rotating disk 42, so that the inclined surfaces of the control blocks 52 squeeze the rollers 56. In this process, the rollers 56 can move along the inclined surfaces of the corresponding control blocks 52, thereby causing the connecting rods 54 to drive the corresponding inner rods 44 to extend synchronously from the outer cylinders 43, and the connecting rods 54 can move along the inclined surfaces of the corresponding control blocks 52. When the inner rod 44 moves, it can drive the plurality of laser cleaning devices 46 to move. When the cylinder 51 drives the plurality of control blocks 52 to move away from the rotating disk 42, the plurality of control blocks 52 can separate from the plurality of rollers 56. At this time, the plurality of inner rods 44 can be synchronously retracted into the plurality of outer cylinders 43 under the elastic force of the plurality of springs 45. In this way, the operator can control the position of the plurality of control blocks 52 through the cylinder 51, and further adjust the distance between the plurality of laser cleaning devices 46 and the rotating disk 42, so that the plurality of laser cleaning devices 46 can perform laser cleaning on pipes of different sizes.

[0036] When cleaning the inner wall of the pipeline, the staff puts the pipeline robot 1 into the pipeline from one end of the pipeline, starts the pipeline robot 1, the drive motor 3 and the plurality of laser cleaning devices 46. When the pipeline robot 1 is in operation, it can drive the assembly box 2 to move inside the pipeline. When the drive motor 3 is in operation, the drive motor 3 can drive the rotating seat 41 to rotate through the screw 71, so that the rotating disk 42 rotates. When the rotating disk 42 rotates, it can drive the plurality of laser cleaning devices 46 to rotate, so that the plurality of laser cleaning devices 46 perform laser cleaning on the inner wall of the pipeline. When the pipeline robot 1 moves from one end of the pipeline to the other end of the pipeline, the staff puts the pipeline robot 1 into the other end of the pipeline, so that the pipeline robot 1 drives the assembly box 2 to move in the opposite direction in the pipeline, so that the plurality of laser cleaning devices 46 can comprehensively clean the inner wall of the pipeline.

[0037] When the rotating disk 42 drives the plurality of outer cylinders 43 to rotate, the plurality of outer cylinders 43 can also drive the plurality of outer cylinders 61 to move through the plurality of fixed rods 66. When the plurality of outer cylinders 61 rotate, they can drive the plurality of inner rods 62 to rotate, thereby causing the plurality of grinding plates 65 to rotate. Under the elastic force of the plurality of springs 63, the plurality of grinding plates 65 can always be in close contact with the inner wall of the pipe. In this way, when the plurality of grinding plates 65 rotate, they can grind the parts of the inner wall of the pipe that have been cleaned by the laser, thereby improving the cleaning effect of the device on the inner wall of the pipe.

[0038] When the driving motor 3 drives the screw rod 71 to rotate, under the limiting action of the guide rod 74, the rotating screw rod 71 can drive the movable plate 73 to reciprocate in the assembly box 2. During the reciprocating movement, the movable plate 73 can continuously squeeze and stretch the bag 75. Since the flow limiting directions of the two one-way valves 77 are opposite, specifically, one of the one-way valves 77 limits the airflow to only enter the bag 75, and the other one-way valve 77 limits the airflow to only flow out of the bag 75, so when the bag 75 is stretched, the bag 75 can extract the air in the absorption box 81, and when the bag 75 is compressed, the air in the bag 75 will be discharged through the corresponding air pipe 76. Based on the above process, with the operation of the driving motor 3, the absorption box 81 can absorb the smoke generated during the laser cleaning process through the plurality of absorption tubes 82 and the plurality of suction hoods 83. In this way, the device can use the power of the driving motor 3 to absorb the smoke generated during the laser cleaning process without the need to set up an independent smoke absorption device.

[0039] It is worth mentioning that the specific structure and working principle of the pipeline robot 1 and the laser cleaning device 46 are not the innovative part of this technical solution, are not shown in the figure, and will not be described in detail here.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser cleaning device for the inner wall of a pipeline, comprising a pipeline robot (1), characterized in that: The pipeline robot (1) is fixedly connected to an assembly box (2), a driving motor (3) is installed inside the assembly box (2), a laser cleaning component (4) is provided on the assembly box (2), and the laser cleaning component (4) is used to perform laser cleaning on the inner wall of the pipeline, the assembly box (2) is provided with an adjustment component (5), and the adjustment component (5) is used to adjust the laser cleaning component (4), the assembly box (2) is provided with a grinding component (6), and the grinding component (6) is used to grind and clean the inner wall of the pipeline after laser cleaning, and the assembly box (2) is also provided with an absorption component (7) and a collection component (8) that cooperate with each other, and the absorption component (7) and the collection component (8) are used to absorb smoke generated during the laser cleaning process; The laser cleaning assembly (4) includes a rotating seat (41), a rotating disk (42), a plurality of outer cylinders (43), a plurality of inner rods (44), a plurality of springs (45) and a plurality of laser cleaning devices (46). The rotating seat (41) passes through the assembly box (2) and is fixedly connected to the assembly box (2). The rotating disk (42) is fixedly connected to one end of the rotating seat (41) located outside the assembly box (2). The plurality of outer cylinders (43) are fixedly connected to the outer edge of the rotating disk (42). , several of the inner rods (44) are movably assembled in several outer cylinders (43), one end of several of the springs (45) is connected to several outer cylinders (43), the other end of several of the springs (45) is connected to several of the inner rods (44), one end of several of the inner rods (44) extends to the outside of the corresponding outer cylinder (43), and several of the laser cleaning devices (46) are respectively installed on one end of several of the inner rods (44) located outside the corresponding outer cylinder (43); The absorption assembly (7) includes a screw (71), an annular plate (72), a movable plate (73), a guide rod (74), a capsule (75), two air pipes (76) and two one-way valves (77). One end of the screw (71) is connected to the output shaft of the drive motor (3), and the other end of the screw (71) is fixedly connected to the rotating seat (41). The annular plate (72) is fixedly connected to the inner surface of the assembly box (2). The movable plate (73) is threadedly sleeved on the screw (71). The guide rod (74) is fixedly connected to the inner surface of the assembly box (2), the movable plate (73) is threadedly sleeved on the screw rod (71), and the movable plate (73) is slidably sleeved on the guide rod (74). One end of the capsule (75) is connected to the annular plate (72), and the other end of the capsule (75) is connected to the movable plate (73). One end of the two air pipes (76) is communicated with the capsule (75), and the two one-way valves (77) are respectively installed on the two air pipes (76).

2. The laser cleaning device for the inner wall of a pipeline according to claim 1, characterized in that: The regulating assembly (5) comprises a cylinder (51), a plurality of control blocks (52), a movable frame (53), a plurality of connecting rods (54), a plurality of wheel frames (55), a plurality of rollers (56) and a plurality of slideways (57). The cylinder (51) is mounted on the assembly box (2). The movable frame (53) is slidably sleeved on the assembly box (2). The plurality of control blocks (52) are fixedly connected to the movable frame (53). One end of the plurality of connecting rods (54) is fixedly connected to the plurality of inner rods (44) respectively. The other end of the plurality of connecting rods (54) is fixedly connected to the plurality of wheel frames (55). The plurality of rollers (56) are rotatably assembled on the plurality of wheel frames (55). The plurality of rollers (56) are in contact with the plurality of control blocks (52) respectively. The plurality of slideways (57) are respectively opened on the plurality of outer cylinders (43). The plurality of connecting rods (54) are slidably assembled in the plurality of slideways (57).

3. The laser cleaning device for the inner wall of a pipeline according to claim 1, characterized in that: The grinding assembly (6) includes a plurality of outer cylinders (61), a plurality of inner rods (62), a plurality of springs (63), a plurality of fixing plates (64), a plurality of grinding plates (65) and a plurality of fixing rods (66). One end of each of the fixing rods (66) is fixedly connected to each of the outer cylinders (43), and the other end of each of the fixing rods (66) is fixedly connected to each of the outer cylinders (61). The plurality of inner rods (62) are slidably assembled in the plurality of outer cylinders (61). One end of the plurality of springs (63) is connected to the plurality of outer cylinders (61), and the other end of the plurality of springs (63) is connected to the plurality of inner rods (62). One end of the plurality of inner rods (62) extends to the outside of the corresponding outer cylinder (61). The plurality of fixing plates (64) are fixedly connected to one end of the plurality of inner rods (62) located outside the corresponding outer cylinder (61). The plurality of polishing plates (65) are mounted on the plurality of fixing plates (64).

4. The laser cleaning device for the inner wall of a pipeline according to claim 3, characterized in that: The collecting assembly (8) includes an absorption box (81), a plurality of absorption tubes (82) and a plurality of suction hoods (83), wherein the absorption box (81) is fixedly connected to the side of the rotating disk (42), one end of each of the absorption tubes (82) is connected to the absorption box (81), and the plurality of suction hoods (83) are respectively connected to the plurality of absorption tubes (82), and the plurality of suction hoods (83) are respectively arranged opposite to the plurality of laser cleaning devices (46), and the absorption box (81) is connected to one end of one of the air tubes (76) away from the capsule (75) through a rotary joint.

5. The laser cleaning device for the inner wall of a pipeline according to claim 3, characterized in that: The flow limiting directions of the two one-way valves (77) are opposite.

6. The laser cleaning device for the inner wall of a pipeline according to claim 2, characterized in that: The control block (52) is provided with an inclined surface.

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