Chemical pipeline inner wall cleaning device

By designing an automated chemical pipeline inner wall cleaning device, using components such as vehicle body, moving rod, roller, cleaning rod, cleaning block and cleaning disk, the problems of low efficiency and poor results caused by relying on manual cleaning of chemical pipelines in the prior art are solved, and efficient and automated pipeline inner wall cleaning is achieved.

CN222766889UActive Publication Date: 2025-04-18山东省蓬渤安全环保服务有限公司
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Patent Information

Application Number
CN202421490323.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-04-18
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

The existing chemical pipeline cleaning methods rely on manual labor, have low efficiency and poor results, and cannot effectively solve the normal use problems caused by scaling in the inner wall of the pipeline.

Method used

Design a chemical pipe inner wall cleaning device, including the vehicle body, moving rod, roller, cleaning rod, cleaning block and cleaning disk, and realizes the automated cleaning process through the controller and motor drive.

Benefits of technology

The device can automatically adapt to chemical pipes of different sizes and bending degrees, improve cleaning efficiency, ensure the thorough cleaning of the inner wall of the pipe, and reduce manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of chemical pipeline cleaning, in particular to a chemical pipeline inner wall cleaning device which comprises a chemical pipeline, a vehicle body is arranged in the chemical pipeline, a plurality of moving rods are fixed outside the vehicle body, the outer end of each moving rod is connected with a roller supporting rod in a sliding mode, and a roller is arranged on the outer side of each roller supporting rod. A cleaning rod is arranged on the left side of the vehicle body, a plurality of cleaning plates are arranged at the bottom of the cleaning rod, a cleaning block is arranged on the right side of the vehicle body, a cleaning rod is fixed to the top of the cleaning block, a conversion plate is arranged at the right end of the cleaning rod, a cleaning disc is arranged at the top of the conversion plate, and a plurality of cleaning wires are fixed to the top of the cleaning disc. A scraper is fixed at the bottom of the conversion plate; according to the cleaning device, the multiple cleaning plates can rotate around the cleaning plate positioning ring through the cleaning plate positioning spring and the cleaning plate positioning ring, so that the multiple cleaning plates are tightly attached, the cleaning effect is guaranteed, automation is achieved, and the cleaning efficiency is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of chemical pipeline cleaning, in particular to a chemical pipeline inner wall cleaning device. Background Art

[0002] With the development of modern industry, the application scope of chemical pipeline transportation in oil, natural gas, supply and discharge of chemical liquids has been continuously expanded, and its superiority has become more and more obvious. However, after long-term use, the pipeline will form scale to varying degrees, resulting in a smaller inner diameter of the pipeline. When the structure reaches a certain degree, if it is not effectively removed in time, it will seriously affect the normal use of the pipeline.

[0003] However, the existing pipeline cleaning method usually relies heavily on manual labor, resulting in low cleaning efficiency and poor cleaning effect. In this regard, the utility model designs a chemical pipeline inner wall cleaning device to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a chemical pipeline inner wall cleaning device, which effectively solves the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical pipeline inner wall cleaning device, comprising a chemical pipeline, a vehicle body is provided inside the chemical pipeline, a controller is fixed on the top of the vehicle body, a power supply is fixed on the right end of the controller, a plurality of moving rods are fixed on the outside of the vehicle body, each of the moving rods is slidably connected to a roller support rod at the outer end, a roller is provided on the outer side of each roller support rod, and each roller can be tightly attached to the inner wall of the chemical pipeline, a cleaning rod is provided on the left side of the vehicle body, a plurality of cleaning plates are provided at the bottom of the cleaning rod, a cleaning block is provided on the right side of the vehicle body, a cleaning rod is fixed on the top of the cleaning block, a conversion plate is provided on the right end of the cleaning rod, a cleaning disk is provided on the top of the conversion plate, a plurality of cleaning wires are fixed on the top of the cleaning disk, and a scraper is fixed on the bottom of the conversion plate.

[0006] Preferably, a moving rod controller is fixed to the end of each moving rod away from the center of the vehicle body, a roller spring is provided on the outside of each roller support rod, a roller positioning plate is fixed to the outside of each roller support rod, each roller positioning plate is rotatably connected to the roller inside it via a rotating shaft, a roller sub-gear is fixed to one end of each roller via a rotating shaft, each roller sub-gear is meshedly connected to a roller main gear, each roller main gear is rotatably connected to a roller motor, and each roller motor is fixedly connected to the roller positioning plate on one side of it.

[0007] Preferably, a cleaning rod positioning block is fixed to the left side of the vehicle body, and the cleaning rod positioning block is fixedly connected to the cleaning rod at its bottom, a cleaning rod controller is fixed to the left side of the cleaning rod, a cleaning plate positioning ring is fixed to the bottom of the cleaning rod controller, the cleaning plate positioning ring is slidably connected to the cleaning plate at its bottom side, and a cleaning plate positioning spring is provided on the outside of the cleaning plate positioning ring.

[0008] Preferably, a reversing motor bearing is fixed to the right end of the vehicle body, a reversing motor sub-gear is fixed to the right end of the inner ring of the reversing motor bearing through a rotating shaft, the reversing motor sub-gear is fixedly connected to the cleaning block at its right end, the reversing motor sub-gear is meshingly connected to the reversing main gear, the left side of the reversing main gear is rotatably connected to the reversing motor, and the reversing motor is fixedly connected to the vehicle body.

[0009] Preferably, a mobile camera is fixed to the right end of the cleaning block, a cleaning rod movement controller is also provided on the top of the cleaning block, a conversion motor is fixed to the top of the cleaning rod, the right end of the conversion motor is rotatably connected to the conversion plate through a rotating shaft, a camera is also fixed to the top of the scraper through a fixed plate, a cleaning motor is also fixed to the top of the conversion plate, and the top of the cleaning motor is rotatably connected to the cleaning disk through a rotating shaft.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can drive the moving rod to extend and retract through the moving rod controller, thereby driving the roller positioning plate to move, so that the roller is closely attached to the inner wall of the chemical pipeline, so that the whole device can be adapted to chemical pipelines of different sizes. At this time, due to the action of the roller support rod and the roller spring, the whole device can be adapted to chemical pipelines with different curvatures, thereby increasing the application range of the equipment and improving the cleaning efficiency of the equipment.

[0012] The utility model drives the cleaning rod to be extended and retracted through the cleaning rod controller, which can drive the cleaning plate to be close to the inner wall of the chemical pipeline, thereby increasing the use range of the equipment. At the same time, the equipment can make multiple cleaning plates rotate around the cleaning plate positioning ring through the cleaning plate positioning spring and the cleaning plate positioning ring, so that the multiple cleaning plates are close to each other, thereby ensuring the cleaning effect, thereby realizing automation, and improving the cleaning efficiency.

[0013] The utility model can move the conversion plate outward by moving the controller of the cleaning rod, and at the same time, the device can make the scraper close to the inner wall of the chemical pipeline through the conversion motor, and then the scraper can preliminarily scrape the dirt on the inner wall of the chemical pipeline through the reversing motor, and further control the conversion plate to rotate by the conversion motor so that the cleaning wire is close to the inner wall of the chemical pipeline, and at the same time, the cleaning motor drives the cleaning disk to rotate to clean at the scraper scraping completion position, thereby ensuring the cleaning effect and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the pipeline of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the vehicle body of the utility model;

[0019] Figure 4 This is a schematic diagram of the mobile mechanism of the utility model;

[0020] Figure 5 This is an enlarged schematic diagram of the cleaning mechanism of the utility model;

[0021] Figure 6 It is an enlarged schematic diagram of the cleaning mechanism of the utility model.

[0022] In the figure: 1-chemical pipeline; 2-car body; 3-moving rod; 4-cleaning rod; 5-cleaning block; 6-cleaning plate; 7-scraper; 8-cleaning rod; 201-controller; 202-power supply; 301-moving rod controller; 302-roller support rod; 303-roller spring; 304-roller positioning plate; 305-roller; 306-roller secondary gear; 307-roller main gear; 308-roller motor; 401-cleaning rod positioning block; 402-cleaning rod controller; 403-cleaning plate; 404-cleaning plate positioning ring; 405-cleaning plate positioning spring; 501-reversing motor; 502-reversing main gear; 503-reversing motor sub-gear; 504-reversing motor bearing; 505-moving camera; 601-cleaning wire; 602-cleaning motor; 801-cleaning rod moving controller; 802-conversion motor; 803-camera; 804-conversion plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, by Figure 1-3The utility model includes a chemical pipeline 1, wherein a vehicle body 2 is arranged inside the chemical pipeline 1, wherein the vehicle body 2 is made of alloy material, wherein the vehicle body 2 is used to support the entire device, wherein a controller 201 is fixed on the top of the vehicle body 2, wherein the controller 201 is used to control the entire device, wherein a power supply 202 is fixed on the right end of the controller 201, wherein the power supply 202 provides the required energy for the entire device, wherein a plurality of moving rods 3 are fixed on the outside of the vehicle body 2, wherein the moving rods 3 are retractable, thereby driving the roller 305 to move, wherein each of the moving rods 3 The outer end is slidably connected with a roller support rod 302, the roller support rod 302 is made of alloy material, the roller support rod 302 is used to position the roller positioning plate 304, each roller support rod 302 is provided with a roller 305 on the outside, the roller 305 can drive the entire device to move on the inner wall of the chemical pipeline 1 by rotating, each roller 305 can be closely attached to the inner wall of the chemical pipeline 1, and a cleaning rod 4 is provided on the left side of the vehicle body 2, and the cleaning rod 4 is retractable, so that the cleaning plate 403 can adapt to the chemical pipelines of different sizes. The cleaning rod 4 is provided with a plurality of cleaning plates 403 at the bottom thereof, and the cleaning plates 403 are made of alloy material. The cleaning plates 403 are used to clean the dirt that falls inside. A cleaning block 5 is provided on the right side of the vehicle body 2, and the cleaning block 5 is made of alloy material. The cleaning block 5 is used to fix the cleaning rod 8. A cleaning rod 8 is fixed on the top of the cleaning block 5. The cleaning rod 8 is retractable, thereby driving the conversion plate 804 to move up and down. A conversion plate 804 is provided on the right end of the cleaning rod 8, and the conversion plate 804 is made of alloy material. The conversion plate 804 is used to position the scraper 7. A cleaning disc 6 is provided on the top of the conversion plate 804. The cleaning disc 6 is made of alloy material. The cleaning disc 6 is used to position the telescopic cleaning wire 601. A plurality of cleaning wires 601 are fixed on the top of the cleaning disc 6. The cleaning wires 601 are made of iron wire. The cleaning wires 601 are used to clean the dirt on the inner wall of the chemical pipeline 1. A scraper 7 is fixed on the bottom of the conversion plate 804. The scraper 7 is made of alloy material. The scraper 7 is used to preliminarily scrape off the dirt on the inner wall of the chemical pipeline 1.

[0025] Embodiment 2, based on embodiment 1, Figure 4-6It is given that a moving rod controller 301 is fixed at one end of each moving rod 3 away from the center of the vehicle body 2, and the moving rod controller 301 can drive the moving rod 3 to extend and retract. A roller spring 303 is arranged on the outside of each roller support rod 302, and the roller spring 303 is elastic. A roller positioning plate 304 is fixed on the outside of each roller support rod 302, and the roller positioning plate 304 is made of alloy material. The roller positioning plate 304 is used to position the roller 305. Each roller positioning plate 304 is rotatably connected to the roller 305 inside it through a rotating shaft. A roller sub-gear 306 is fixed at one end of each roller 305 through a rotating shaft, and the roller sub-gear 306 can drive the roller 305 to rotate. Each of the roller sub-gears 306 is meshedly connected with a roller main gear 307, and the roller main gear 307 can drive the roller sub-gear 306 to rotate. Each of the roller main gears 307 is rotationally connected with a roller motor 308, and the roller motor 308 can drive the roller main gear 307 to rotate. Each of the roller motors 308 is fixedly connected to the roller positioning plate 304 on one side thereof. A cleaning rod positioning block 401 is fixedly provided on the left side of the vehicle body 2, and the cleaning rod positioning block 401 is made of alloy material. The cleaning rod positioning block 401 is used to position the cleaning rod 4, and the cleaning rod positioning block 401 is fixedly connected to the cleaning rod 4 at its bottom. A cleaning rod controller 402 is fixedly provided on the left side of the cleaning rod 4. The rod controller 402 can drive the cleaning rod 4 to extend and retract. A cleaning plate positioning ring 404 is fixed at the bottom of the cleaning rod controller 402. The cleaning plate positioning ring 404 is made of alloy material. The cleaning plate positioning ring 404 is used to position the cleaning plate 403. The cleaning plate positioning ring 404 is slidably connected to the cleaning plate 403 on its bottom side. A cleaning plate positioning spring 405 is provided on the outside of the cleaning plate positioning ring 404. The cleaning plate positioning spring 405 is elastic, thereby ensuring that multiple cleaning plates 403 are tightly attached. A reversing motor bearing 504 is fixed at the right end of the vehicle body 2. The reversing motor bearing 504 is used to position the 03. The right end of the inner ring of the reversing motor bearing 504 is fixed with a reversing motor auxiliary gear through a rotating shaft. Wheel 503, the reversing motor sub-gear 503 can drive the cleaning block 5 to rotate, the reversing motor sub-gear 503 is fixedly connected to the cleaning block 5 at its right end, the reversing motor sub-gear 503 is meshedly connected with the reversing main gear 502, the reversing main gear 502 can drive the reversing motor sub-gear 503 to rotate, the reversing main gear 502 is rotatably connected with the reversing motor 501 on the left side, the reversing motor 501 can drive the reversing main gear 502 to rotate, the reversing motor 501 is fixedly connected to the vehicle body 2, a mobile camera 505 is fixed on the right end of the cleaning block 5, the mobile camera 505 can monitor the movement of the entire equipment, and a cleaning rod movement controller 801 is also provided on the top of the cleaning block 5,The cleaning rod movement controller 801 can drive the cleaning rod 8 to extend and retract, a conversion motor 802 is fixed on the top of the cleaning rod 8, the conversion motor 802 can drive the conversion plate 804 to rotate, the right end of the conversion motor 802 is rotatably connected to the conversion plate 804 through a rotating shaft, a camera 803 is also fixed on the top of the scraper 7 through a fixed plate, the camera 803 can monitor the cleaning conditions of the scraper 7 and the cleaning wire 601, a cleaning motor 602 is also fixed on the top of the conversion plate 804, the cleaning motor 602 can drive the cleaning disk 6 to rotate, and the top of the cleaning motor 602 is rotatably connected to the cleaning disk 6 through a rotating shaft;

[0026] When using the device, the staff places the vehicle body 2 inside the chemical pipeline 1. At this time, the controller 201 controls the multiple moving rod controllers 301 to work, thereby driving the multiple moving rods 3 to extend, thereby driving the roller positioning plate 304 to move outward, thereby driving the multiple rollers 305 to cling to the inner wall of the chemical pipeline 1. At this time, due to the action of the roller support rod 302 and the roller spring 303, it can be ensured that the entire device can adapt to the concave and convex parts of the inner wall of the pipeline. Further, the controller 201 controls the mobile camera 505 to work, so as to monitor the specific conditions of the inner wall of the chemical pipeline 1. When the mobile camera 505 detects that the vehicle body 2 has reached the chemical pipeline When there is a scaling position on the inner wall of the chemical pipeline 1, the controller 201 controls the vehicle body 2 to stop moving, and further the controller 201 controls the conversion motor 802 to rotate the conversion plate 804, so that the scraper 7 is close to the inner wall of the chemical pipeline 1, and further the controller 201 controls the cleaning rod movement controller 801 to work, thereby driving the cleaning rod 8 to extend, thereby driving the scraper 7 to be close to the inner wall of the chemical pipeline 1, and further the controller 201 controls the reversing motor 501 to work, thereby driving the reversing main gear 502 to rotate, thereby driving the reversing motor sub-gear 503 to rotate, thereby driving the cleaning block 5 to rotate, thereby driving the cleaning rod 8 rotates, thereby driving the scraper 7 to rotate around the cleaning block 5, thereby completing the scraping work. When the camera 803 detects that the scraper 7 has completed scraping, the controller 201 controls the cleaning rod 8 to rotate to the scraping position. Further, the controller 201 controls the conversion motor 802 to work again, so that the cleaning wire 601 is close to the inner wall of the chemical pipeline 1. Further, the controller 201 controls the cleaning motor 602 to work, thereby driving the cleaning disk 6 to rotate, thereby driving the multiple cleaning wires 601 to rotate, thereby completing the cleaning work of the inner wall of the chemical pipeline 1. Further, the controller 201 controls the entire device to continue moving again, and then reaches the next step. The scale position is located, and then the cleaning work of multiple scaling points is completed. After the cleaning work of the entire chemical pipeline 1 is completed, the controller 201 controls the vehicle body 2 to continue to move. After the vehicle body 2 moves a certain distance, the controller 201 controls the cleaning rod controller 402 to work, thereby driving the cleaning rod 4 to extend, thereby driving the multiple cleaning plates 403 to be close to the bottom of the inner wall of the chemical pipeline 1. At this time, due to the action of the cleaning plate positioning ring 404 and the cleaning plate positioning spring 405, the multiple cleaning plates 403 can be closely attached. Further, the controller 201 controls the vehicle body 2 to move in the opposite direction, so that the fallen scale is cleaned out of the chemical pipeline 1 through the multiple cleaning plates 403.

[0027] The working process of the utility model is as follows: when using the device, the staff places the vehicle body 2 inside the chemical pipeline 1, and at this time, the controller 201 controls the multiple moving rod controllers 301 to work, thereby driving the multiple moving rods 3 to extend, thereby driving the roller positioning plates 304 to move outward, thereby driving the multiple rollers 305 to cling to the inner wall of the chemical pipeline 1. At this time, due to the effects of the roller support rods 302 and the roller springs 303, it can be ensured that the entire device can adapt to the concave and convex parts of the inner wall of the pipeline. Further, the controller 201 controls the mobile camera 505 to work, thereby monitoring the specific conditions of the inner wall of the chemical pipeline 1. When the mobile camera 505 monitors the vehicle When the vehicle body 2 reaches the position where the scale is deposited on the inner wall of the chemical pipeline 1, the controller 201 controls the vehicle body 2 to stop moving. Further, the controller 201 controls the conversion motor 802 to rotate the conversion plate 804, so that the scraper 7 is close to the inner wall of the chemical pipeline 1. Further, the controller 201 controls the cleaning rod movement controller 801 to work, thereby driving the cleaning rod 8 to extend, thereby driving the scraper 7 to be close to the inner wall of the chemical pipeline 1. Further, the controller 201 controls the reversing motor 501 to work, thereby driving the reversing main gear 502 to rotate, thereby driving the reversing motor sub-gear 503 to rotate, thereby driving the cleaning block 5 to rotate, thereby driving The cleaning rod 8 is driven to rotate, thereby driving the scraper 7 to rotate around the cleaning block 5, thereby completing the scraping work. When the camera 803 detects that the scraper 7 has completed scraping, the controller 201 controls the cleaning rod 8 to rotate to the scraping position. Further, the controller 201 controls the conversion motor 802 to work again, so that the cleaning wire 601 is close to the inner wall of the chemical pipeline 1. Further, the controller 201 controls the cleaning motor 602 to work, thereby driving the cleaning disk 6 to rotate, thereby driving multiple cleaning wires 601 to rotate, thereby completing the cleaning work of the inner wall of the chemical pipeline 1. Further, the controller 201 controls the entire device to continue moving again, thereby reaching The next scaling position is moved, and then the cleaning work of multiple scaling points is completed. After the cleaning work of the entire chemical pipeline 1 is completed, the controller 201 controls the vehicle body 2 to continue to move. After the vehicle body 2 moves a certain distance, the controller 201 controls the cleaning rod controller 402 to work, thereby driving the cleaning rod 4 to extend, thereby driving the multiple cleaning plates 403 to be close to the bottom of the inner wall of the chemical pipeline 1. At this time, due to the action of the cleaning plate positioning ring 404 and the cleaning plate positioning spring 405, the multiple cleaning plates 403 can be closely attached. Further, the controller 201 controls the vehicle body 2 to move in the opposite direction, so that the fallen scaling is cleaned out of the chemical pipeline 1 through the multiple cleaning plates 403.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical pipeline inner wall cleaning device, characterized in that: The invention comprises a chemical pipeline (1), wherein a vehicle body (2) is arranged inside the chemical pipeline (1), a controller (201) is fixed on the top of the vehicle body (2), a power supply (202) is fixed on the right end of the controller (201), and a plurality of moving rods (3) are fixed on the outside of the vehicle body (2), each of the moving rods (3) is slidably connected to a roller support rod (302) at the outer end, each of the roller support rods (302) is provided with a roller (305) on the outer side, and each of the rollers (305) can be rotatably connected to the chemical pipeline (1). The inner wall is tightly attached, a cleaning rod (4) is provided on the left side of the vehicle body (2), a plurality of cleaning plates (403) are provided at the bottom of the cleaning rod (4), a cleaning block (5) is provided on the right side of the vehicle body (2), a cleaning rod (8) is fixed on the top of the cleaning block (5), a conversion plate (804) is provided at the right end of the cleaning rod (8), a cleaning disc (6) is provided on the top of the conversion plate (804), a plurality of cleaning wires (601) are fixed on the top of the cleaning disc (6), and a scraper (7) is fixed at the bottom of the conversion plate (804).

2. A chemical pipeline inner wall cleaning device according to claim 1, characterized in that: A moving rod controller (301) is fixed to one end of each moving rod (3) away from the center of the vehicle body (2); a roller spring (303) is provided on the outside of each roller support rod (302); a roller positioning plate (304) is fixed to the outside of each roller support rod (302); each roller positioning plate (304) is rotationally connected to the roller (305) inside it via a rotating shaft; a roller secondary gear (306) is fixed to one end of each roller (305) via a rotating shaft; each roller secondary gear (306) is meshingly connected to a roller main gear (307); each roller main gear (307) is rotationally connected to a roller motor (308); and each roller motor (308) is fixedly connected to the roller positioning plate (304) on one side thereof.

3. A chemical pipeline inner wall cleaning device according to claim 2, characterized in that: A cleaning rod positioning block (401) is fixed on the left side of the vehicle body (2), the cleaning rod positioning block (401) is fixedly connected to the cleaning rod (4) at the bottom thereof, a cleaning rod controller (402) is fixed on the left side of the cleaning rod (4), a cleaning plate positioning ring (404) is fixed at the bottom of the cleaning rod controller (402), the cleaning plate positioning ring (404) is slidably connected to the cleaning plate (403) at the bottom thereof, and a cleaning plate positioning spring (405) is provided outside the cleaning plate positioning ring (404).

4. A chemical pipeline inner wall cleaning device according to claim 3, characterized in that: A reversing motor bearing (504) is fixed to the right end of the vehicle body (2); a reversing motor sub-gear (503) is fixed to the right end of the inner ring of the reversing motor bearing (504) via a rotating shaft; the reversing motor sub-gear (503) is fixedly connected to the cleaning block (5) at its right end; the reversing motor sub-gear (503) is meshingly connected to a reversing main gear (502); the reversing main gear (502) is rotatably connected to a reversing motor (501) on the left side; and the reversing motor (501) is fixedly connected to the vehicle body (2).

5. A chemical pipeline inner wall cleaning device according to claim 4, characterized in that: A movable camera (505) is fixed to the right end of the cleaning block (5), a cleaning rod movement controller (801) is also provided on the top of the cleaning block (5), a conversion motor (802) is fixed to the top of the cleaning rod (8), the right end of the conversion motor (802) is rotatably connected to the conversion plate (804) via a rotating shaft, a camera (803) is also fixed to the top of the scraper (7) via a fixing plate, a cleaning motor (602) is also fixed to the top of the conversion plate (804), and the top of the cleaning motor (602) is rotatably connected to the cleaning disk (6) via a rotating shaft.