Maintenance device in fuel pipeline

Abstract

The invention belongs to the field of industrial maintenance, and particularly relates to a fuel oil pipeline internal maintenance device which comprises a first barrel, a second barrel, an adjusting assembly and the like, the inner diameter of the second barrel is the same as that of the first barrel, the second barrel is rotationally connected to the left end of the first barrel, and the adjusting assembly is arranged in the first barrel. Through cooperative work of the cleaning assembly and the paint spraying assembly, sediments on the inner wall of the fuel oil pipeline can be cleaned firstly, then the cleaned inner wall of the fuel oil pipeline is subjected to paint spraying repair, the quality of a paint surface is ensured, and the problem that the paint surface is uneven or poor in adhesive force due to the fact that paint is directly sprayed on the inner wall which is not cleaned thoroughly is solved; the device is simple in structure and convenient to use, sediment scraped by the inner wall of the fuel oil pipeline can be efficiently collected, redundant paint in the paint spraying repair process can be collected at the same time, it is guaranteed that residues or secondary pollution cannot be caused when the device is withdrawn from the fuel oil pipeline, and safety, efficiency and environmental friendliness of the whole maintenance process are improved.

Description

Technical Field

[0001] The invention belongs to the field of industrial maintenance and care, and in particular relates to a maintenance device inside a fuel pipeline. Background Art

[0002] Fuel pipelines refer to pipeline systems used to transport various types of fuel. These pipelines are usually made of metal or special materials and are widely used in the oil and gas industry, transportation, industrial production, and military. Fuel may contain moisture, acidic substances or other corrosive components, which will chemically react with the inner wall of the pipeline, causing the metal pipeline to gradually corrode. By spraying paint on the inner wall of the fuel pipeline, a protective film can be formed on the metal surface to isolate the corrosive substances in the fuel from contacting the metal, effectively preventing the occurrence of chemical corrosion and electrochemical corrosion. Therefore, regular maintenance of the inner wall of the fuel pipeline is crucial.

[0003] Ordinary fuel pipeline maintenance devices can usually only perform simple paint spraying. However, there are deposits on the inner wall of the fuel pipeline. Spraying paint directly on an uncleaned surface will result in uneven paint surface or poor adhesion. After the paint spraying is completed, the excess paint cannot be collected, resulting in the excess paint flowing when the device is withdrawn from the fuel pipeline, causing environmental pollution, a dirty operating environment and other problems.

[0004] Therefore, there is a particular need for a fuel pipeline maintenance device to solve the above problems. Summary of the invention

[0005] In order to overcome the shortcomings of ordinary fuel pipeline maintenance devices that can usually only simply spray paint but cannot clean sediments, resulting in uneven paint surface and poor adhesion, and excess paint cannot be collected and will flow when exiting, causing environmental pollution and a dirty operating environment, the present invention provides a fuel pipeline maintenance device.

[0006] The present invention is realized by the following technical means: a fuel pipeline maintenance device, characterized in that it includes a first cylinder 1, a second cylinder 2, an adjustment component, a connecting pipe 6, a sliding sleeve 7, a first flower-shaped seat 9, a first telescopic rod 10, a first connecting block 101, a pulley 11, a second motor 12, a transmission belt assembly 13 and a paint spraying assembly; the second cylinder 2 has the same inner diameter as the first cylinder 1, and is rotatably connected to the left end of the first cylinder 1; the adjustment component is arranged inside the first cylinder 1, the connecting pipe 6 is rotatably connected to the center point position of the right part of the first cylinder 1, and its right end passes through the right part of the first cylinder 1 and is located outside the first cylinder 1, and the left end of the connecting pipe 6 is closed and the right end is open, the sliding sleeve 7 is slidably connected to the outside of the connecting pipe 6, two first flower-shaped seats 9 are distributed on the left and right sides, and are fixed to the outside of the left and right ends of the sliding sleeve 7, and multiple first connecting blocks 101 are upper and lower Distributed, fixedly connected to the upper and lower sides of the first cylinder 1, each first telescopic rod 10 is composed of a fixed sleeve and a sliding rod body, and is arranged between the corresponding first flower-shaped seat 9 and the corresponding first connecting block 101, wherein the fixed sleeve of the first telescopic rod 10 is rotatably connected to the corresponding first flower-shaped seat 9, and the sliding rod body is rotatably connected to the corresponding first connecting block 101, each pulley 11 is rotatably connected to one end of each first telescopic rod 10 away from the first flower-shaped seat 9, a plurality of second motors 12 are installed on the plurality of first telescopic rods 10 on the lower side, a transmission belt assembly 13 is arranged between the output shaft of the corresponding second motor 12 and the corresponding pulley 11, forming a closed-loop transmission system, and a paint spraying assembly is arranged inside the first cylinder 1; a cleaning assembly for cleaning sediments is also provided between the first cylinder 1 and the second cylinder 2; a collecting assembly is also provided at the lower part of the first cylinder 1.

[0007] Compared with the prior art, the present invention has the following advantages: through the coordinated work of the cleaning component and the painting component, the sediment on the inner wall of the fuel pipeline can be cleaned first, and then the cleaned inner wall of the fuel pipeline can be repaired by spraying paint to ensure the quality of the paint surface, avoiding the problem of uneven paint surface or poor adhesion caused by direct spraying paint on the uncleaned inner wall. Then, through the design of the collection component, not only can the sediment scraped off the inner wall of the fuel pipeline be efficiently collected, but also the excess paint during the spraying and repair process can be collected at the same time, ensuring that no residue or secondary pollution will be caused when the device is withdrawn from the fuel pipeline, thereby improving the safety, efficiency and environmental protection of the entire maintenance process. Through the adjustment component, the positions of the pulley, the first scraper and the second scraper can be adjusted according to the inner diameter requirements of the fuel pipeline to adapt to fuel pipelines with different inner diameters and improve the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0009] Figure 2 It is a partial cross-sectional view of the first barrel and the second barrel components of the present invention.

[0010] Figure 3 It is a partial cross-sectional view of the first barrel and the second barrel components of the present invention.

[0011] Figure 4 It is a partial cross-sectional view of the first telescopic rod component of the present invention.

[0012] Figure 5 It is a partial cross-sectional view of the second cylinder and the sliding sleeve component of the present invention.

[0013] Figure 6 It is a partial cross-sectional view of the second telescopic rod and the first scraper component of the present invention.

[0014] Figure 7 It is a partial cross-sectional view of the second telescopic rod component of the present invention.

[0015] Figure 8 It is a partial cross-sectional view of the first scraper component of the present invention.

[0016] Fig. 9 It is a partial cross-sectional view of the first barrel and the second barrel components of the present invention.

[0017] Fig.10 It is a partial cross-sectional view of the sliding sleeve and the material storage tray components of the present invention.

[0018] Fig.11 It is a partial cross-sectional view of the first cylinder and the slide member of the present invention.

[0019] Fig.12 It is a partial cross-sectional view of the first cylinder and the slide member of the present invention.

[0020] Explanation of reference numerals: 1. first cylinder, 2. second cylinder, 3. first motor, 4. connecting shaft, 5. first gear, 6. connecting tube, 61. opening, 7. sliding sleeve, 8. rack, 9. first flower-shaped seat, 10. first telescopic rod, 101. first connecting block, 11. pulley, 12. second motor, 13. transmission belt assembly, 14. rotating tube, 15. third motor, 16. second gear, 17. gear block, 18. second flower-shaped seat, 19. second telescopic rod, 20. second connecting block, 21 , the first scraper, 22, the second scraper, 23, the cylinder, 24, the torsion spring, 25, the first spring, 26, the paint bucket, 27, the first material pump, 28, the first telescopic tube, 29, the material storage tray, 30, the nozzle, 31, the reinforcement block, 32, the pressure plate, 33, the collection box, 331, the screw cover, 34, the second material pump, 35, the second telescopic tube, 36, the first guide rod, 37, the slide, 371, the second guide rod, 372, the second spring, 38, the third spring, 39, the feed frame, 40, the scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-12 As shown: a fuel pipeline maintenance device, including a first cylinder 1, a second cylinder 2, an adjustment component, a connecting pipe 6, a sliding sleeve 7, a first flower-shaped seat 9, a first telescopic rod 10, a first connecting block 101, a pulley 11, a second motor 12, a transmission belt assembly 13 and a paint spraying assembly; the second cylinder 2 has the same inner diameter as the first cylinder 1 and is rotatably connected to the left end of the first cylinder 1; the adjustment component is arranged inside the first cylinder 1, the connecting pipe 6 is rotatably connected to the center point of the right part of the first cylinder 1, and its right end passes through the right part of the first cylinder 1 and is located outside the first cylinder 1, and the left end of the connecting pipe 6 is closed and the right end is open, the sliding sleeve 7 is slidably connected to the outside of the connecting pipe 6, two first flower-shaped seats 9 are distributed left and right and fixed to the outside of the left and right ends of the sliding sleeve 7, and a plurality of first connecting blocks 101 are distributed up and down and fixed to the first On the upper and lower sides of the cylinder 1, each first telescopic rod 10 is composed of a fixed sleeve and a sliding rod body, and is arranged between the corresponding first flower-shaped seat 9 and the corresponding first connecting block 101, wherein the fixed sleeve of the first telescopic rod 10 is rotatably connected to the corresponding first flower-shaped seat 9, and the sliding rod body is rotatably connected to the corresponding first connecting block 101, and each pulley 11 is rotatably connected to one end of each first telescopic rod 10 away from the first flower-shaped seat 9, and multiple second motors 12 are installed on the multiple first telescopic rods 10 on the lower side, and the transmission belt assembly 13 is arranged between the output shaft of the corresponding second motor 12 and the corresponding pulley 11 to form a closed-loop transmission system, and the paint spraying assembly is arranged inside the first cylinder 1; a cleaning assembly for cleaning sediments is also provided between the first cylinder 1 and the second cylinder 2; a collecting assembly is also provided at the lower part of the first cylinder 1.

[0023] like Figure 2 and Fig.11As shown, the adjustment assembly includes a first motor 3, a connecting shaft 4, a first gear 5 and a rack 8. The first motor 3 is connected to the cylinder wall at the rear side of the upper inner portion of the first cylinder 1 by means of bolts, and its output shaft faces forward. The connecting shaft 4 is connected to the output shaft of the first motor 3 by means of a coupling, and its front end is rotatably connected to the cylinder wall at the front side of the upper inner portion of the first cylinder 1, providing a second fulcrum for the connecting shaft 4 to improve the stability of the connecting shaft 4 during rotation. The first gear 5 is connected to the outside of the middle end of the connecting shaft 4 by means of a key connection, and the rack 8 is connected to the outside of the sliding sleeve 7 by means of welding, and is located below the first gear 5 and meshes therewith, and the rack 8 is equal in thickness to the first gear 5, which can achieve uniform load distribution, reduce the risk of wear and damage, and help reduce vibrations caused by unbalanced loads, thereby improving operational stability. Fig. 9 and Fig.10 As shown, the paint spraying assembly includes a paint bucket 26, a first material pump 27, a first telescopic tube 28, a material storage tray 29, a nozzle 30 and a reinforcement block 31. A plurality of openings 61 are distributed at intervals along the circumference and are opened at the right end of the connecting tube 6. The inner diameter of the sliding sleeve 7 is close to the outer diameter of the connecting tube 6, and a sealing layer is provided at the inner diameter of the sliding sleeve 7, so that subsequent paint can only enter the inside of the connecting tube 6 through the opening 61. The two paint buckets 26 are symmetrically distributed and connected to the cylinder walls on both sides of the front and rear sides of the lower part of the first cylinder 1 by bolts. Each first material pump 27 is connected to the right part of each paint bucket 26 by bolts. Each first telescopic tube 2 8 is connected between each first material pump 27 and the sliding sleeve 7 by welding, and its discharge port is aligned with the corresponding opening 61. The storage tray 29 is connected to the right end of the connecting pipe 6 by welding and is connected thereto. Eight nozzles 30 are distributed at intervals along the circumference and are connected to the storage tray 29 by welding. The nozzles face outward, and the angle between every two nozzles 30 is 45 degrees. The reinforcement block 31 is connected to the center point of the outer right part of the first cylinder 1 by welding. The feed end of the storage tray 29 is rotatably connected to the reinforcement block 31, providing a second fulcrum for the storage tray 29, thereby improving the stability of the storage tray 29 during rotation.

[0024] like Figure 3 , Figure 5-10As shown, the cleaning assembly includes a rotating tube 14, a third motor 15, a second gear 16, a tooth block 17, a second flower-shaped seat 18, a second telescopic rod 19, a second connecting block 20, a first scraper 21, a second scraper 22, a cylinder 23, a torsion spring 24 and a first spring 25. The rotating tube 14 is connected to the left end of the connecting tube 6 by welding and is rotatably connected to the left end of the sliding sleeve 7. The third motor 15 is connected to the left end of the sliding sleeve 7 by bolts, and its output shaft faces left. The second gear 16 is connected to the output shaft of the third motor 15 by key connection. The plurality of tooth blocks 17 are annular. The second telescopic rod 19 is equidistantly distributed, connected to the outside of the middle end of the rotating tube 14 by welding, and is located above the second gear 16, and can mesh with the second gear 16 in sequence. The second flower-shaped seat 18 is connected to the outside of the left end of the rotating tube 14 by welding. A plurality of second connecting blocks 20 are distributed up and down, and are connected to the upper and lower sides of the second cylinder 2 by welding. Each second telescopic rod 19 with the same structure as the first telescopic rod 10 is arranged between the corresponding second flower-shaped seat 18 and the corresponding second connecting block 20, wherein the fixed sleeve of the second telescopic rod 19 is rotatably connected to the corresponding second flower-shaped seat 18. Then, the sliding rod body is rotatably connected with the corresponding second connecting block 20, each first scraper 21 is rotatably connected to one end of each second telescopic rod 19 away from the second flower-shaped seat 18, each torsion spring 24 is sleeved on each first scraper 21, and its two ends are respectively fixedly connected with the corresponding second telescopic rod 19 and the corresponding first scraper 21, and the second scraper 22 is slidably connected to the inside of the first scraper 21. A silicone layer is provided on the V-shaped surface of the second scraper 22 away from the first scraper 21. The silicone layer can provide excellent sealing and flexibility, ensuring close fit with the inner wall of the fuel pipeline during the cleaning process. In order to effectively scrape off the sediment, each cylinder 23 is connected to the inside of each first scraper 21 by means of bolts, with its telescopic rod facing downward and fixedly connected to the corresponding second scraper 22, and the cylinder 23 is a floating cylinder 23, allowing the telescopic rod to float freely within a certain range. When the second scraper 22 is squeezed by the inner wall of the fuel pipeline and slides into the inside of the first scraper 21, the telescopic rod of the cylinder 23 floats with the sliding of the second scraper 22. Every three first springs 25 are distributed along the curved direction of each first scraper 21 and are connected between the corresponding first scraper 21 and the corresponding second scraper 22 by welding.

[0025] like Fig.11 and Fig.12As shown, the collecting assembly includes a pressing plate 32, a collecting box 33, a screw cover 331, a second material pump 34, a second telescopic tube 35, a first guide rod 36, a slide 37, a second guide rod 371, a second spring 372, a third spring 38, a feed frame 39 and a scraper plate 40. The V-shaped pressing plate 32 is connected to the outside of the right end of the sliding sleeve 7 by welding, the collecting box 33 is connected to the cylinder wall at the lower inner part of the first cylinder 1 by bolts, and its discharge end passes through the first cylinder 1 downward and is located outside the first cylinder 1. The screw cover 331 is threadedly connected to the discharge end of the collecting box 33, the second material pump 34 is connected to the cylinder wall at the lower inner part of the first cylinder 1 by bolts, and is located on the right side of the collecting box 33, and its left discharge end is connected to the The collecting box 33 is connected, and the air outlet on the right side passes through the first cylinder 1 and is located outside the first cylinder 1. The second material pump 34 with the air outlet end is the existing technology. The air outlet end provides a direct exhaust channel for the second material pump 34, so that the air in the second material pump 34 can be discharged through this channel, so as to avoid air accumulation in the pump and affect the normal operation of the pump, thereby ensuring the smooth transportation of sediment and the normal operation of the system. The two first guide rods 36 are symmetrically distributed and slidably connected to the lower right part of the first cylinder 1. The slide 37 is connected between the top ends of the two first guide rods 36 by welding, and is located below the pressure plate 32, and abuts against the inclined surface of the pressure plate 32. Each third spring 38 is sleeved on the outside of each first guide rod 36, and its two ends are respectively connected to the first guide rods 36. A cylinder 1 is fixedly connected to a slide 37, two second guide rods 371 are symmetrically distributed and slidably connected to the front and rear sides of the slide 37, the lower end of the second guide rod 371 passes through the first cylinder 1 and is located outside the first cylinder 1, each second spring 372 is connected between each second guide rod 371 and the slide 37 by welding, the feed frame 39 is connected between the bottom ends of the two second guide rods 371 by welding, and is located below the first cylinder 1, to the right of the first scraper 21 and the second scraper 22, the second telescopic tube 35 is connected between the second feed pump 34 and the feed frame 39 by welding, and its feed end is connected to the discharge end of the feed frame 39, and the discharge end is connected to the feed end of the second feed pump 34, and the two ends of the curved structure are connected. The scraper plates 40 are symmetrical front to back and are connected to the front and rear sides of the left part of the feed frame 39 by welding. The curved design of the scraper plates 40 enables them to better fit the inner wall of the fuel pipe, ensuring that they cover most of the area of ​​the lower inner wall of the fuel pipe during the cleaning process, minimizing the cleaning dead corners; at the same time, the curved surface of the scraper plates 40 can play a material guiding role, and guide the sediment scraped off by the first scraper plates 21 and the second scraper plates 22 into the interior of the feed frame 39; in addition, the scraper plates 40 are made of suitable materials, such as polyurethane. Polyurethane is soft and elastic, can adapt well to the inner walls of fuel pipes of different diameters and shapes, and has excellent wear resistance and tear resistance. It can maintain its shape during long-term use and is not easily damaged.

[0026] When it is necessary to maintain the inner wall of the fuel pipeline, first ensure that there is no medium flowing in the fuel pipeline, then place the device at the entrance of the fuel pipeline, start the first motor 3, and control the output shaft of the first motor 3 to rotate forward or reverse according to the inner diameter requirement of the fuel pipeline. When the output shaft rotates forward, it drives the connecting shaft 4 to rotate clockwise, and the first gear 5 rotates clockwise with the connecting shaft 4, and meshes with the rack 8 in a positive direction, so that the rack 8 drives the sliding sleeve 7 to move left, and the first flower-shaped seat 9 moves left with the sliding sleeve 7, pushing the first telescopic rod 10 to rotate with the corresponding first connecting block 101 as the axis, and adjusting the position of the pulley 11. At the same time, the sliding sleeve 7 drives the rotating tube 14 to move left, and the second flower-shaped seat 18 moves left with the rotating tube 14, pushing the second telescopic rod 19 to rotate with the corresponding second connecting block 20 as the axis, and adjusting the positions of the first scraper 21 and the second scraper 22. In this process, the first telescopic rod 10 and the second telescopic rod 19 are appropriately stretched or contracted. Avoid jamming; when the output shaft rotates in reverse, it drives the connecting shaft 4 to rotate counterclockwise, and the first gear 5 rotates counterclockwise with the connecting shaft 4 and meshes with the rack 8 in the opposite direction, so that the rack 8 drives the sliding sleeve 7 to move to the right, and the first flower-shaped seat 9 moves to the right with the sliding sleeve 7, pulls the first telescopic rod 10 to reverse the axis corresponding to the first connecting block 101, adjusts the position of the pulley 11, and the sliding sleeve 7 drives the rotating tube 14 to move to the right, and the second flower-shaped seat 18 moves to the right with the rotating tube 14, pulls the second telescopic rod 19 to reverse the axis corresponding to the second connecting block 20, and adjusts the positions of the first scraper 21 and the second scraper 22. In this process, the first telescopic rod 10 is still properly stretched or contracted to avoid jamming; when the first telescopic rod 10 and the second telescopic rod 19 rotate clockwise or counterclockwise to a suitable angle, adjusts the pulley 11, the first scraper 21 and the second scraper 22 to a suitable position to meet the inner diameter requirements of the fuel pipeline, and immediately turns off the first motor 3;Then push the device into the fuel pipeline, ensure that the second cylinder 2 enters the fuel pipeline before the first cylinder 1. At this time, the pulley 11 contacts the inner wall of the fuel pipeline. When the first scraper 21 contacts the inner wall of the fuel pipeline, it rotates along the inner diameter of the tube to a suitable angle, and the torsion spring 24 is deformed to ensure that the first scraper 21 and the second scraper 22 fit the inner wall of the fuel pipeline. Then start the second motor 12 and the third motor 15. When the second motor 12 is running, its output shaft drives the corresponding pulley 11 on the lower side to rotate counterclockwise through the transmission belt assembly 13, thereby driving the device to move forward in the fuel pipeline. When moving forward, the upper pulley 11 rotates to contact the inner wall of the fuel pipeline to ensure that the device moves forward smoothly. In the process of moving forward, the speed of the device can be adjusted by controlling the speed of the output shaft of the second motor 12. When the third motor 15 is running, its output shaft drives the second gear 16 to rotate clockwise, and continuously meshes with the plurality of tooth blocks 17, so that the tooth blocks 17 drive the rotating tube 14 to rotate counterclockwise, and the rotating tube 14 drives the second telescopic rod 19 to rotate counterclockwise through the second flower-shaped seat 18, and the second cylinder 2 rotates counterclockwise together with the second telescopic rod 19, and when the first scraper 21 rotates counterclockwise, it drives the second scraper 22 to scrape off the sediment on the inner wall of the fuel pipeline. When scraping off the sediment, the second scraper 22 can be squeezed and slide into the first scraper 21 along the circumference of the inner wall of the fuel pipeline, and the first spring 25 is compressed. Under the action of the first spring 25, the second scraper 22 continues to be close to the inner wall of the fuel pipeline to ensure the scraping effect, while avoiding The second scraper 22 is stuck; when the first scraper 21 drives the second scraper 22 to rotate counterclockwise to close to the lower inner wall of the fuel pipeline, the cylinder 23 is immediately started to control its telescopic rod to extend, driving the second scraper 22 to completely slide into the first scraper 21, and the first spring 25 is fully compressed. When sliding in, the surface of the second scraper 22 is close to the inner wall of the first scraper 21, and the sediment accumulated on its surface is scraped off by the first scraper 21 and accumulated on the first scraper 21. The fluidity of the accumulated sediment is improved and falls from the first scraper 21 to the lower part of the fuel pipeline; when the first scraper 21 continues to drive the second scraper 22 to rotate counterclockwise to away from the lower inner wall of the fuel pipeline, the telescopic rod of the cylinder 23 is immediately controlled to retract, driving the second scraper 22 to slide out of the first scraper 21. The first spring 25 returns to its original state, so that the second scraper 22 continues to scrape off the sediment on the inner wall of the fuel pipe; then the first material pump 27 is started to extract the paint in the paint bucket 26 and send the paint into the first telescopic tube 28, and the paint in the first telescopic tube 28 is discharged to the opening 61 and enters the connecting pipe 6 from the opening 61, and the paint in the connecting pipe 6 finally enters the storage tray 29 and is sprayed from the spray head 30 onto the cleaned inner wall of the fuel pipe to repair the paint surface. During the painting process, the rotating tube 14 drives the connecting pipe 6 to rotate counterclockwise, and the storage tray 29 rotates counterclockwise with the connecting pipe 6, so that the spray head 30 sprays the paint evenly onto the inner wall of the fuel pipe, and the excess paint accumulates along the inner wall of the fuel pipe to its lower part and is mixed into the sediment;When the paint repair of the inner wall of the fuel pipeline is completed, the third motor 15, the cylinder 23, the first material pump 27 and the second material pump 34 are turned off, and the output shaft of the second motor 12 is controlled to reverse. The output shaft drives the corresponding pulley 11 on the lower side to rotate clockwise through the transmission belt assembly 13, and then the driving device withdraws from the fuel pipeline, and the torsion spring 24 returns to its original shape, prompting the first scraper 21 to reverse and reset. ;

[0027] Initially, the slide 37 has been squeezed by the pressure plate 32 and is in a downward moving state. The second spring 372 and the third spring 38 are both in a compressed state. When the sliding sleeve 7 moves to the left, the pressure plate 32 is driven to move to the left, and the slide 37 is continuously squeezed to move downward. The second spring 372 continues to be compressed, and the first guide rod 36 moves downward with the slide 37, and the third spring 38 is continuously compressed. At the same time, the first guide rod 36 drives the feed frame 39 to move downward, so that the feed frame 39 is adjusted accordingly with the positions of the pulley 11, the first scraper 21 and the second scraper 22 to ensure that the feed frame 39 contacts the lower inner wall of the fuel pipeline when entering the fuel pipeline; when the sliding sleeve 7 moves to the right, the pressure plate 32 is driven to move to the right, and the slide 37 is no longer squeezed. The second spring 372 and the third spring 38 return to their original state, prompting the first guide rod 36 and the slide 37 to move upward. At the same time, the first guide rod 36 drives the feed frame 39 to move upward, so that the feed frame 39 is adjusted accordingly with the positions of the pulley 11, the first scraper 21 and the second scraper 22, to ensure that the feed frame 39 contacts the lower inner wall of the fuel pipeline when entering the fuel pipeline; when the device moves in the fuel pipeline, the scraper plate 40 moves in the fuel pipeline together with the feed frame 39 to scrape off the sediment on the lower inner wall of the fuel pipeline, and at the same time, guides the paint-containing sediment accumulated in the lower part of the fuel pipeline into the feed frame 39. When the paint-containing sediment enters the feed frame 39, the second feed pump 34 is started to draw the paint-containing sediment in the feed frame 39 into the second telescopic tube 35, and then the paint-containing sediment in the second telescopic tube 35 is sent to the collection box 33 for centralized collection; when the device withdraws from the fuel pipeline, the screw cap 331 is unscrewed to open the discharge end of the collection box 33 to discharge the paint-containing sediment.

[0028] It is worth noting that in order to improve the convenience and safety of operation, all electrical components in the device (such as the first motor 3, the second motor 12, the third motor 15, the cylinder 23, the first material pump 27 and the second material pump 34) can be integrated into a central control system. The system can automatically control the operation of each component through wireless remote control or preset programs, reduce manual intervention, and improve work efficiency. In addition, a variety of sensors (such as pressure sensors, temperature sensors, position sensors, etc.) can be installed on the device to monitor the working status of the device and the environmental parameters of the fuel pipeline in real time. These data can be sent to external monitoring equipment via wireless transmission to help operators understand the operation of the device in a timely manner and make adjustments.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fuel pipeline maintenance device, characterized in that: The invention comprises a first cylinder (1), a second cylinder (2), an adjustment component, a connecting pipe (6), a sliding sleeve (7), a first flower-shaped seat (9), a first telescopic rod (10), a first connecting block (101), a pulley (11), a second motor (12), a transmission belt component (13) and a paint spraying component; the second cylinder (2) has the same inner diameter as the first cylinder (1) and is rotatably connected to the left end of the first cylinder (1); the adjustment component is arranged inside the first cylinder (1); the connecting pipe (6) is rotatably connected to the center point of the right part inside the first cylinder (1); the right end of the connecting pipe (6) passes through the right part of the first cylinder (1) and is located outside the first cylinder (1); the left end of the connecting pipe (6) is closed and the right end is open; the sliding sleeve (7) is slidably connected to the outside of the connecting pipe (6); two first flower-shaped seats (9) are distributed on the left and right sides and are fixedly connected to the outside of the left and right ends of the sliding sleeve (7); a plurality of first connecting blocks (101) are distributed on the upper and lower sides and are fixedly connected to the first cylinder (1). (1) on the upper and lower sides, each first telescopic rod (10) is composed of a fixed sleeve and a sliding rod body, and is arranged between the corresponding first flower-shaped seat (9) and the corresponding first connecting block (101), wherein the fixed sleeve of the first telescopic rod (10) is rotatably connected to the corresponding first flower-shaped seat (9), and the sliding rod body is rotatably connected to the corresponding first connecting block (101), each pulley (11) is rotatably connected to an end of each first telescopic rod (10) away from the first flower-shaped seat (9), a plurality of second motors (12) are installed on the plurality of first telescopic rods (10) on the lower side, a transmission belt assembly (13) is arranged between the output shaft of the corresponding second motor (12) and the corresponding pulley (11), forming a closed-loop transmission system, and a paint spraying assembly is arranged inside the first cylinder (1); a cleaning assembly for cleaning sediment is also arranged between the first cylinder (1) and the second cylinder (2); and a collecting assembly is also arranged at the lower part of the first cylinder (1).

2. The fuel pipeline maintenance device according to claim 1, characterized in that: The adjustment component comprises a first motor (3), a connecting shaft (4), a first gear (5) and a rack (8). The first motor (3) is mounted on the cylinder wall at the rear side of the upper inner part of the first cylinder (1), with its output shaft facing forward. The connecting shaft (4) is fixedly connected to the output shaft of the first motor (3) through a coupling, and its front end is rotatably connected to the cylinder wall at the front side of the upper inner part of the first cylinder (1). The first gear (5) is fixedly connected to the outside of the middle end of the connecting shaft (4). The rack (8) is fixedly connected to the outside of the sliding sleeve (7) and is located below the first gear (5) and meshes with it. The rack (8) and the first gear (5) have the same thickness.

3. The fuel pipeline maintenance device according to claim 1, characterized in that: The paint spraying assembly comprises a paint bucket (26), a first material pump (27), a first telescopic tube (28), a material storage tray (29) and a nozzle (30). A plurality of openings (61) are distributed at intervals along the circumference and are opened at the right end of the connecting tube (6). The inner diameter of the sliding sleeve (7) is close to the outer diameter of the connecting tube (6). Two paint buckets (26) are symmetrically distributed and installed on the cylinder walls on the front and rear sides of the lower part of the first cylinder (1). Each first material pump (27) is installed on the right part of each paint bucket (26). Each first telescopic tube (28) is fixedly connected between each first material pump (27) and the sliding sleeve (7), and its discharge port is aligned with the corresponding opening (61). The material storage tray (29) is fixedly connected to the right end of the connecting tube (6) and communicates with it. A plurality of nozzles (30) are distributed at intervals along the circumference and are fixedly connected to the material storage tray (29). The nozzles face outward, and the angle between each two nozzles (30) is 45 degrees.

4. The fuel pipeline maintenance device according to claim 1, characterized in that: The cleaning assembly comprises a rotating tube (14), a third motor (15), a second gear (16), a tooth block (17), a second flower-shaped seat (18), a second telescopic rod (19), a second connecting block (20), a first scraper (21), a second scraper (22), a cylinder (23), a torsion spring (24) and a first spring (25). The rotating tube (14) is fixedly connected to the left end of the connecting tube (6) and is rotatably connected to the left end of the sliding sleeve (7). The third motor (15) is installed at the left end of the sliding sleeve (7). The output shaft thereof is Toward the left, the second gear (16) is fixedly connected to the output shaft of the third motor (15), a plurality of tooth blocks (17) are equidistantly distributed in an annular manner, fixedly connected to the outside of the middle end of the rotating tube (14), and located above the second gear (16), and can mesh with the second gear (16) in sequence, a second flower-shaped seat (18) is fixedly connected to the outside of the left end of the rotating tube (14), a plurality of second connecting blocks (20) are distributed up and down, fixedly connected to the upper and lower sides of the second cylinder (2), and each second telescopic rod (10) has the same structure as the first telescopic rod (10) The telescopic rod (19) is arranged between the corresponding second flower-shaped seat (18) and the corresponding second connecting block (20), wherein the fixed sleeve of the second telescopic rod (19) is rotatably connected to the corresponding second flower-shaped seat (18), and the sliding rod body is rotatably connected to the corresponding second connecting block (20), each first scraper (21) is rotatably connected to one end of each second telescopic rod (19) away from the second flower-shaped seat (18), and each torsion spring (24) is sleeved on each first scraper (21), and its two ends are respectively connected to the corresponding second telescopic rod (19). The retractable rod (19) is fixedly connected to the corresponding first scraper (21), the second scraper (22) is slidably connected to the inside of the first scraper (21), each cylinder (23) is installed inside each first scraper (21), its telescopic rod faces downward and is fixedly connected to the corresponding second scraper (22), and the cylinder (23) is a floating cylinder (23), and each three first springs (25) are distributed along the curved direction of each first scraper (21) and are fixedly connected between the corresponding first scraper (21) and the corresponding second scraper (22).

5. The fuel pipeline maintenance device according to claim 1, characterized in that: The collecting assembly comprises a pressing plate (32), a collecting box (33), a rotary cover (331), a second material pump (34), a second telescopic tube (35), a first guide rod (36), a slide frame (37), a second guide rod (371), a second spring (372), a third spring (38) and a feeding frame (39). The pressing plate (32) of the V-shaped structure is fixedly connected to the right end of the sliding sleeve (7). The collecting box (33) is installed on the inner lower part of the first cylinder (1). The discharging end of the collecting box (33) passes through the first cylinder (1) downward. 1), and is located outside the first cylinder (1), the screw cap (331) is threadedly connected to the discharge end of the collection box (33), the second material pump (34) is installed on the cylinder wall at the lower part of the first cylinder (1), and is located on the right side of the collection box (33), the discharge end on the left side is connected to the collection box (33), and the air outlet end on the right side passes through the first cylinder (1) and is located outside the first cylinder (1), two first guide rods (36) are symmetrically distributed and slidably connected to the lower right part of the first cylinder (1), and the slide (37) The third spring (38) is fixedly connected between the top ends of the two first guide rods (36) and is located below the pressure plate (32) and abuts against the inclined surface of the pressure plate (32). Each third spring (38) is sleeved on the outside of each first guide rod (36), and its two ends are respectively fixedly connected to the first cylinder (1) and the slide (37). The two second guide rods (371) are symmetrically distributed and slidably connected to the front and rear sides of the slide (37). The lower end of the second guide rod (371) passes through the first cylinder (1) and is located outside the first cylinder (1). A second spring (372) is fixedly connected between each second guide rod (371) and the slide (37). The feed frame (39) is fixedly connected between the bottom ends of the two second guide rods (371) and is located below the first cylinder (1) and to the right of the first scraper (21) and the second scraper (22). The second telescopic tube (35) is fixedly connected between the second material pump (34) and the feed frame (39). Its feed end is connected to the discharge end of the feed frame (39), and the discharge end is connected to the feed end of the second material pump (34).

6. The fuel pipeline maintenance device according to claim 3, characterized in that: It also includes a reinforcing block (31), which is fixed to the center point of the outer right part of the first cylinder (1), and the feeding end of the storage tray (29) is rotatably connected to the reinforcing block (31).

7. The fuel pipeline maintenance device according to claim 5, characterized in that: It also includes a scraper plate (40). The two scraper plates (40) of the curved structure are symmetrical in front and back and are fixed to the front and back sides of the left part of the feed frame (39).

8. The fuel pipeline maintenance device according to claim 1, characterized in that: A circle of strip grooves is arranged on the rolling surface of the pulley (11).

9. The fuel pipeline maintenance device according to claim 4, characterized in that: A silicone layer is provided on a V-shaped surface of the second scraper (22) on one side away from the first scraper (21).

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