An inner wall cleaning device for chemical pipelines

Abstract

The present invention relates to the technical field of pipeline cleaning, and discloses an inner wall cleaning device for chemical pipelines, comprising a driving seat, a motor, a spacing adjustment component and a cleaning cabin, wherein the motor is driven and installed on the surface of the driving seat, the cleaning cabin is installed on a side of the driving seat close to the motor, and a spacing adjustment component is arranged between the driving seat and the cleaning cabin, the spacing adjustment component comprises a first gear ring distributed in an annular array and fixedly connected to the output shaft of the motor, a sleeve is fixedly connected to the end of the motor away from the driving seat, and a slider is fixedly connected to the outer wall of the sleeve; through the rotation of the motor, the slider can adjust the sliding position of the slider inside the special-shaped slide groove according to the different moving states of the driving seat, so that the cleaning cabin stops rotating when the driving seat is in a stagnant state inside the pipeline, and the cleaning cabin will clean the inner wall of the pipeline when the driving seat is in a moving state inside the pipeline, so that the device can adjust the cleaning mode according to different motion states.

Description

Technical Field

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

[0002] In the chemical industry, pipeline systems serve as the core carrier of material transportation, and the cleanliness of their inner walls directly affects production efficiency, product purity, and equipment safety. However, after long-term operation, various pollutants are easily deposited on the inner walls of chemical pipelines. These pollutants not only reduce the pipeline's flow cross-sectional area and increase transportation energy consumption, but may also cause corrosion, blockage, and even abnormal chemical reactions, leading to production suspensions for maintenance or safety accidents.

[0003] Although existing high-pressure water jet cleaning methods can remove surface dirt, they lack pre-treatment methods for stubborn attachments and rely on high pressure or repeated operations, which can easily cause wear on the inner wall of the pipe, especially on thin-walled pipes or pipes with complex structures.

[0004] When scraping the inner wall of the pipe, traditional machines such as existing mechanical brushes clean the stains on the inner wall of the pipe by rotating the scraper. The scraped stains usually fall directly downwards. If not cleaned in time, it will cause secondary pollution. The staff needs to perform secondary cleaning on the bottom of the inner cavity of the pipe, which leads to low cleaning efficiency.

[0005] Therefore, an inner wall cleaning device for a chemical pipeline is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an inner wall cleaning device for chemical pipelines to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an inner wall cleaning device for a chemical pipeline, comprising a drive base, a motor, a spacing adjustment assembly, and a cleaning cabin, wherein the motor is mounted on the surface of the drive base, the cleaning cabin is mounted on a side of the drive base close to the motor, and a spacing adjustment assembly is provided between the drive base and the cleaning cabin;

[0008] The spacing adjustment assembly includes a first gear ring distributed in an annular array and fixedly connected to the output shaft of the motor, a sleeve is fixedly connected to the end of the motor away from the driving seat, a slider is fixedly connected to the outer wall of the sleeve, and a special-shaped slide groove adapted to the slider is provided on the inner wall of the cleaning cabin, and the side of the cleaning cabin close to the driving seat is distributed in an annular array and slidably connected to the slide rod, and the side of the slide rod close to the driving seat is fixedly connected to the annular disk, a first spring is fixedly connected between the annular disk and the cleaning cabin, and the side of the inner wall of the cleaning cabin close to the driving seat is distributed in an annular array and fixedly connected to the second gear ring.

[0009] Preferably, a scraping assembly is provided inside the cleaning cabin, and the scraping assembly includes arc plates distributed in a ring array and slidingly connected to the side walls of the cleaning cabin, the outer walls of the arc plates are fixedly connected to angled rubber plates, the outer walls of the arc plates are provided with dirt collecting holes, and a second spring is fixedly connected between the arc plates and the outer wall of the cleaning cabin, an empty cabin is provided inside the cleaning cabin, the outer walls of the cleaning cabin are fixedly connected to dirt collecting pipes distributed in a ring array, the dirt collecting pipes are slidably connected to the inside of the arc plate, the interior of the empty cabin is rotatably connected to a rotating shaft, the end of the rotating shaft close to the motor is slidably connected to the inside of the motor, the outer wall of the rotating shaft is distributed in a ring array and fixedly connected to fan blades, the end of the fan blade away from the motor is slidably connected to a conical plugging head, a third spring is fixedly connected between the conical plugging head and the rotating shaft, and the outer walls of the arc plates are rotatably connected to a cleaning blanket.

[0010] Preferably, an immersion component is provided inside the cleaning cabin, and the immersion component includes a sliding frame distributed in an annular array and slidably connected to the outer wall of the driving seat, the sliding frame is fixedly connected to an annular gear plate on one side close to the cleaning cabin, the annular gear plate is rotatably connected to the outer wall of the cleaning cabin, the outer wall of the cleaning cabin is distributed in an annular array and slidably connected to the immersion box, the interior of the immersion box is rotatably connected to the scraper, and a fourth spring is fixedly connected between the immersion box and the outer wall of the cleaning cabin, a filter plate is inserted into the side of the cleaning cabin away from the driving seat, and a liquid storage tank is installed on the side of the cleaning cabin away from the driving seat, a liquid outlet is opened inside the cleaning cabin, and the liquid outlet is connected between the immersion box and the liquid storage tank.

[0011] Preferably, the outer wall of the driving seat is provided with movable wheels distributed in a circular array, and the side of the cleaning cabin away from the driving seat is rotatably connected to an auxiliary seat.

[0012] Preferably, the first gear ring and the second gear ring are meshed with each other, the middle section of the special-shaped slide groove is threaded, the ends of the special-shaped slide groove are annular grooves, and when the first spring is in an uncompressed state, the slider is slidably connected to the inside of the annular groove of the special-shaped slide groove close to the motor side, and the annular disk fits against the outer wall of the motor.

[0013] Preferably, the side wall of the fan blade fits against the inner wall of the cabin, and when the fan blade rotates, the liquid inside the cabin flows to the side away from the motor.

[0014] Preferably, the end of the conical sealing head away from the motor is conical, and the conical sealing head seals the interior of the empty cabin when the third spring is not stretched.

[0015] Preferably, the immersion box is slidably connected to the interior of the cleaning cabin, a sealing rubber ring is installed on the top of the immersion box, filter holes are opened at positions corresponding to the liquid outlet of the filter plate, and the interior of the liquid storage cabin is filled with cleaning agent.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By rotating the motor, the slider can adjust the sliding position of the slider inside the special-shaped chute according to the different moving states of the driving seat. When the driving seat is in a stagnant state inside the pipeline, the cleaning cabin stops rotating. When the driving seat is in a moving state inside the pipeline, the cleaning cabin will clean the inner wall of the pipeline, so that the equipment can adjust the cleaning method according to different movement states.

[0018] 2. When the cleaning cabin rotates, the angled rubber plate scrapes the inner wall of the chemical pipeline and the cleaning blanket wipes the inner wall of the chemical pipeline, which can improve the cleaning effect of the inner wall of the chemical pipeline. At the same time, the rotation of the fan blades inside the cleaning cabin generates a negative pressure inside the cleaning cabin, so that the sewage scraped by the angled rubber plate can be actively sucked into the empty cabin under the action of negative pressure adsorption, thereby ensuring that sewage will not accumulate on the surface of the curved plate and the angled rubber plate, so that the angled rubber plate can maintain an efficient scraping state inside the chemical pipeline.

[0019] 3. By soaking the inner wall of the chemical pipeline with the cleaning liquid inside the immersion box, the cleaning liquid can slowly penetrate into the tiny pores, cracks or uneven areas on the inner wall of the pipeline, removing pollutants in dead corners that are difficult to reach by mechanical cleaning. Pre-immersion can soften or partially dissolve stubborn stains. When using curved plates and angled rubber plates later, there is no need to apply excessive pressure or repeated operations, thereby reducing the risk of damage to the inner wall of the pipeline and extending the service life of the chemical pipeline and curved plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is an exploded schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a partial schematic diagram of the drive seat structure of the present invention;

[0023] Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at center A;

[0025] Figure 6 It is a partial cross-sectional schematic diagram of the structure of the scraping assembly of the present invention;

[0026] Figure 7 This is a schematic diagram of the explosion of the internal structure of the cleaning cabin of the present invention.

[0027] In the picture:

[0028] 1. Driving seat; 2. Moving wheel; 3. Motor; 4. Spacing adjustment assembly; 5. Cleaning cabin; 6. Sweeping assembly; 7. Soaking assembly; 8. Auxiliary seat;

[0029] 41. First gear ring; 42. Sleeve; 43. Slider; 44. Special-shaped slide groove; 45. Sliding rod; 46. Annular disk; 47. First spring; 48. Second gear ring;

[0030] 61. Curved plate; 62. Angle rubber plate; 63. Sewage collection hole; 64. Second spring; 65. Sewage collection pipe; 66. Empty chamber; 67. Rotating shaft; 68. Fan blade; 69. Conical plugging head; 610. Third spring; 611. Cleaning blanket;

[0031] 71. Sliding frame; 72. Annular tooth plate; 73. Immersion box; 74. Scraper; 75. Fourth spring; 76. Filter plate; 77. Liquid storage tank; 78. Liquid outlet. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figures 1 to 7 In an embodiment of the present invention, a device for cleaning the inner wall of a chemical pipeline includes a drive base 1, a motor 3, a spacing adjustment component 4, and a cleaning chamber 5. The motor 3 is mounted on the surface of the drive base 1, and the cleaning chamber 5 is mounted on a side of the drive base 1 close to the motor 3. The spacing adjustment component 4 is provided between the drive base 1 and the cleaning chamber 5.

[0034] The outer wall of the driving seat 1 is provided with movable wheels 2 distributed in a circular array, and the side of the cleaning cabin 5 away from the driving seat 1 is rotatably connected to the auxiliary seat 8.

[0035] The spacing adjustment component 4 includes a first gear ring 41 distributed in an annular array and fixedly connected to the output shaft of the motor 3. The end of the motor 3 away from the drive seat 1 is fixedly connected to a sleeve 42. The outer wall of the sleeve 42 is fixedly connected to a slider 43. The inner wall of the cleaning cabin 5 is provided with a special-shaped slide groove 44 adapted to the slider 43. The side of the cleaning cabin 5 close to the drive seat 1 is distributed in an annular array and is slidably connected to the slide rod 45. The side of the slide rod 45 close to the drive seat 1 is fixedly connected to an annular disk 46. A first spring 47 is fixedly connected between the annular disk 46 and the cleaning cabin 5. The inner wall of the cleaning cabin 5 close to the drive seat 1 is distributed in an annular array and is fixedly connected to a second gear ring 48.

[0036] The first gear ring 41 and the second gear ring 48 are meshed with each other, the middle section of the special-shaped slide groove 44 is threaded, and the ends of the special-shaped slide groove 44 are annular grooves. When the first spring 47 is in an uncompressed state, the slider 43 is slidably connected to the inside of the annular groove of the special-shaped slide groove 44 close to the motor 3, and the annular disk 46 is in contact with the outer wall of the motor 3.

[0037] During actual use of this embodiment, the staff will place the device into the chemical pipeline and then start the device. The moving wheel 2 will flip outward inside the drive seat 1 and contact the inner wall of the chemical pipeline, so that the device and the chemical pipeline maintain a coaxial state. After the device is placed inside the chemical pipeline, the staff will start the motor 3 on the drive seat 1. The motor 3 starts to rotate and drives the first gear ring 41, the sleeve 42 and the slider 43 to rotate together.

[0038] When the moving wheel 2 does not drive the driving base 1 to advance inside the pipe, the slider 43 on the outer wall of the sleeve 42 will slide in a circular manner inside the annular groove near the motor 3 inside the special-shaped groove 44 on the inner wall of the cleaning chamber 5, so that the rotation of the motor 3 cannot affect the cleaning chamber 5;

[0039] When the driving seat 1 starts to move forward inside the chemical pipeline, due to the friction between the cleaning cabin 5 and the inner wall of the chemical pipeline, the driving seat 1 will shorten the distance between the driving seat 1 and the cleaning cabin 5 while moving forward. The slider 43 on the outer wall of the sleeve 42 will slide toward the threaded groove in the middle section of the special-shaped slide 44, and finally slide into the annular groove of the special-shaped slide 44 away from the motor 3. As a result, the distance between the driving seat 1 and the cleaning cabin 5 remains shortened during the forward movement of the driving seat 1. When the distance between the driving seat 1 and the cleaning cabin 5 is shortened, the first gear ring 41 and the second gear ring 48 will engage, so that when the motor 3 rotates, it can drive the cleaning cabin 5 to rotate together.

[0040] By rotating the motor 3, the slider 43 can adjust the sliding position of the slider 43 inside the special-shaped slide groove 44 according to the different moving states of the drive seat 1, so that the cleaning cabin 5 stops rotating when the drive seat 1 is in a stagnant state inside the pipeline, and the cleaning cabin 5 will clean the inner wall of the pipeline when the drive seat 1 is in a moving state inside the pipeline, so that the equipment can adjust the cleaning method according to different movement states.

[0041] In one embodiment of the present invention, see Figure 5 、 Figure 6 and Figure 7, a scraping assembly 6 is provided inside the cleaning cabin 5, which includes an arc plate 61 distributed in an annular array and slidably connected to the side wall of the cleaning cabin 5, the outer wall of the arc plate 61 is fixedly connected to the angled rubber plate 62, the outer wall of the arc plate 61 is provided with a dirt collecting hole 63, a second spring 64 is fixedly connected between the arc plate 61 and the outer wall of the cleaning cabin 5, an empty cabin 66 is provided inside the cleaning cabin 5, the outer wall of the cleaning cabin 5 is fixedly connected to the dirt collecting pipe 65 distributed in an annular array, the dirt collecting pipe 65 is slidably connected to the inside of the arc plate 61, the inside of the empty cabin 66 is rotatably connected to the rotating shaft 67, the end of the rotating shaft 67 close to the motor 3 is slidably connected to the inside of the motor 3, the outer wall of the rotating shaft 67 is fixedly connected to the fan blade 68 in an annular array, and the end of the fan blade 68 away from the motor 3 is slidably connected to the conical plugging head 69, a third spring 610 is fixedly connected between the conical plugging head 69 and the rotating shaft 67, and the outer wall of the arc plate 61 is rotatably connected to the cleaning blanket 611.

[0042] The side wall of the fan blade 68 fits with the inner wall of the air chamber 66 , and when the fan blade 68 rotates, the liquid inside the air chamber 66 flows to the side away from the motor 3 .

[0043] The end of the conical sealing head 69 away from the motor 3 is conical, and when the third spring 610 is not stretched, the conical sealing head 69 seals the interior of the empty chamber 66 .

[0044] In actual use of this embodiment, the cleaning cabin 5 will drive the curved plate 61 to rotate together during the rotation process. When the curved plate 61 rotates, it will be affected by the elastic extension of the second spring 64 and will fit the inner wall of the chemical pipeline. The angled rubber plate 62 on the curved plate 61 will scrape the attachments on the inner wall of the chemical pipeline during the rotation process. The stains scraped by the angled rubber plate 62 will flow into the interior of the empty cabin 66 through the dirt collecting hole 63 and the dirt collecting pipe 65. After the angled rubber plate 62 finishes scraping the inner wall of the chemical pipeline, the cleaning blanket 611 will wipe the residual moisture on the inner wall of the chemical pipeline.

[0045] When the sleeve 42 rotates, the rotation of the sleeve 42 always drives the rotating shaft 67 to rotate inside the cleaning cabin 5. During the rotation, the rotating shaft 67 drives the fan blades 68 to rotate and push the sewage collected in the empty cabin 66 toward the conical plugging head 69, so that the sewage squeezes the conical plugging head 69, causing the conical plugging head 69 to open. The sewage enters the liquid storage cabin 77 through the liquid outlet 78 and the filter plate 76, thereby achieving the collection of the sewage.

[0046] When the cleaning cabin 5 rotates, the angled rubber plate 62 scrapes the inner wall of the chemical pipeline and the cleaning blanket 611 wipes the inner wall of the chemical pipeline, which can improve the cleaning effect of the inner wall of the chemical pipeline. At the same time, the fan blades 68 rotate inside the cleaning cabin 5, so that negative pressure is generated inside the cleaning cabin 5, so that the sewage scraped by the angled rubber plate 62 can be actively sucked into the empty cabin 66 under the action of negative pressure adsorption, thereby ensuring that sewage will not accumulate on the surface of the curved plate 61 and the angled rubber plate 62, so that the angled rubber plate 62 can maintain an efficient scraping state inside the chemical pipeline.

[0047] In one embodiment of the present invention, see Figure 2 、 Figure 3 and Figure 4 The cleaning cabin 5 is provided with an immersion assembly 7 inside. The immersion assembly 7 includes a sliding frame 71 distributed in an annular array and slidably connected to the outer wall of the driving seat 1. The sliding frame 71 is fixedly connected to an annular gear plate 72 on the side close to the cleaning cabin 5. The annular gear plate 72 is rotatably connected to the outer wall of the cleaning cabin 5. The outer wall of the cleaning cabin 5 is distributed in an annular array and slidably connected to an immersion box 73. The interior of the immersion box 73 is rotatably connected with a scraper 74. A fourth spring 75 is fixedly connected between the immersion box 73 and the outer wall of the cleaning cabin 5. A filter plate 76 is inserted on the side of the cleaning cabin 5 away from the driving seat 1. A liquid storage tank 77 is installed on the side of the cleaning cabin 5 away from the driving seat 1. A liquid outlet 78 is opened inside the cleaning cabin 5, and the liquid outlet 78 is connected between the immersion box 73 and the liquid storage tank 77.

[0048] The immersion box 73 is slidably connected to the interior of the cleaning cabin 5. A sealing rubber ring is installed on the top of the immersion box 73. Filter holes are opened at positions corresponding to the filter plate 76 and the liquid outlet 78. The liquid storage cabin 77 is filled with cleaning agent.

[0049] When this embodiment is actually used, after the staff puts the equipment into the chemical pipeline, the fourth spring 75 elastically stretches and pushes the surface of the immersion box 73 to fit the inner wall of the chemical pipeline. The rotation of the fan blades 68 will push the sewage inside the empty chamber 66 into the liquid storage tank 77. The detergent inside the liquid storage tank 77 will flow into the interior of the immersion box 73 through the liquid outlet 78 under the action of water pressure, so that the immersion box 73 is stored with detergent. At this time, because the immersion box 73 is in a tightly fitted state with the inner wall of the chemical pipeline, the detergent inside the immersion box 73 will soak the inner wall of the chemical pipeline, thereby softening and foaming the stubborn stains on the inner wall of the chemical pipeline.

[0050] When the driving seat 1 drives the cleaning chamber 5 to start rotating, the scraper 74 rotating with the cleaning chamber 5 will engage with the annular gear plate 72, so that the scraper 74 starts to rotate inside the immersion box 73. During the rotation process, the scraper 74 will stir the cleaning liquid inside the immersion box 73 and scrape the inner wall of the chemical pipeline, thereby promoting the removal of stubborn stains inside the chemical pipeline.

[0051] By soaking the inner wall of the chemical pipeline with the cleaning liquid inside the immersion box 73, the cleaning liquid can slowly penetrate into the tiny pores, cracks or uneven areas on the inner wall of the pipeline, removing pollutants in dead corners that are difficult to reach by mechanical cleaning. Pre-immersion can soften or partially dissolve stubborn stains. When the curved plate 61 and the angled rubber plate 62 are subsequently used, there is no need to apply excessive pressure or repeated operations, thereby reducing the risk of damage to the inner wall of the pipeline and extending the service life of the chemical pipeline and the curved plate 61.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An inner wall cleaning device for a chemical pipeline, comprising a drive seat (1), a motor (3), a spacing adjustment component (4) and a cleaning chamber (5), characterized in that: The motor (3) is mounted on the surface of the drive seat (1), the cleaning cabin (5) is mounted on a side of the drive seat (1) close to the motor (3), and a spacing adjustment component (4) is provided between the drive seat (1) and the cleaning cabin (5); The spacing adjustment component (4) includes a first gear ring (41) distributed in an annular array and fixedly connected to the output shaft of the motor (3); the end of the motor (3) away from the drive seat (1) is fixedly connected to a sleeve (42); the outer wall of the sleeve (42) is fixedly connected to a slider (43); the inner wall of the cleaning chamber (5) is provided with a special-shaped slide groove (44) adapted to the slider (43); the side of the cleaning chamber (5) close to the drive seat (1) is distributed in an annular array and slidably connected to a slide rod (45); the side of the slide rod (45) close to the drive seat (1) is fixedly connected to an annular disk (46); a first spring (47) is fixedly connected between the annular disk (46) and the cleaning chamber (5); the inner wall of the cleaning chamber (5) close to the drive seat (1) is distributed in an annular array and fixedly connected to a second gear ring (48); The cleaning cabin (5) is provided with an immersion assembly (7) inside, and the immersion assembly (7) includes a sliding frame (71) that is slidably connected to the outer wall of the drive seat (1) in an annular array. The sliding frame (71) is fixedly connected to an annular tooth plate (72) on the side close to the cleaning cabin (5). The annular tooth plate (72) is rotatably connected to the outer wall of the cleaning cabin (5). The outer wall of the cleaning cabin (5) is slidably connected to an immersion box (73) in an annular array. The interior of the immersion box (73) is rotatably connected to a scraper (74). A fourth spring (75) is fixedly connected between the immersion box (73) and the outer wall of the cleaning cabin (5). A filter plate (76) is inserted on the side of the cleaning cabin (5) away from the drive seat (1). A liquid storage tank (77) is installed on the side of the cleaning cabin (5) away from the drive seat (1). A liquid outlet (78) is opened inside the cleaning cabin (5), and the liquid outlet (78) is connected between the immersion box (73) and the liquid storage tank (77).

2. The inner wall cleaning device for chemical pipelines according to claim 1, characterized in that: The cleaning cabin (5) is provided with a scraping assembly (6) inside, and the scraping assembly (6) includes an arc plate (61) distributed in an annular array and slidably connected to the side wall of the cleaning cabin (5), the outer wall of the arc plate (61) is fixedly connected with a folded rubber plate (62), the outer wall of the arc plate (61) is provided with a dirt collecting hole (63), and a second spring (64) is fixedly connected between the arc plate (61) and the outer wall of the cleaning cabin (5), an empty cabin (66) is provided inside the cleaning cabin (5), and the outer wall of the cleaning cabin (5) is fixedly connected with a dirt collecting pipe (65) distributed in an annular array, and the dirt collecting hole (63) is provided on the outer wall of the arc plate (61). The sewage pipes (65) are all slidably connected to the inside of the arc plate (61), the interior of the empty chamber (66) is rotatably connected to a rotating shaft (67), the end of the rotating shaft (67) close to the motor (3) is slidably connected to the inside of the motor (3), the outer wall of the rotating shaft (67) is distributed in an annular array and fixedly connected to the fan blades (68), the end of the fan blade (68) away from the motor (3) is slidably connected to a conical plugging head (69), a third spring (610) is fixedly connected between the conical plugging head (69) and the rotating shaft (67), and the outer wall of the arc plate (61) is rotatably connected to a cleaning blanket (611).

3. The inner wall cleaning device for chemical pipelines according to claim 1, characterized in that: The outer wall of the driving seat (1) is provided with movable wheels (2) distributed in a ring array, and the side of the cleaning cabin (5) away from the driving seat (1) is rotatably connected to an auxiliary seat (8).

4. The inner wall cleaning device for chemical pipelines according to claim 1, characterized in that: The first gear ring (41) and the second gear ring (48) are meshed with each other, the middle section of the special-shaped slide groove (44) is in a threaded shape, and the ends of the special-shaped slide groove (44) are in an annular groove shape. When the first spring (47) is in an uncompressed state, the slider (43) is slidably connected to the inside of the annular groove of the special-shaped slide groove (44) close to the motor (3), and the annular disk (46) is in contact with the outer wall of the motor (3).

5. The inner wall cleaning device for chemical pipelines according to claim 2, characterized in that: The side wall of the fan blade (68) fits against the inner wall of the empty chamber (66), and when the fan blade (68) rotates, the liquid inside the empty chamber (66) flows toward the side away from the motor (3).

6. The inner wall cleaning device for chemical pipelines according to claim 2, characterized in that: The conical sealing head (69) has a conical shape at one end away from the motor (3), and when the third spring (610) is not stretched, the conical sealing head (69) forms a seal against the interior of the empty chamber (66).

7. The inner wall cleaning device for chemical pipelines according to claim 1, characterized in that: The immersion box (73) is slidably connected to the interior of the cleaning chamber (5), a sealing rubber ring is installed on the top of the immersion box (73), filter holes are opened at positions corresponding to the filter plate (76) and the liquid outlet hole (78), and the interior of the liquid storage chamber (77) is filled with cleaning agent.

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