Adjustable pipe inner wall coating device

Abstract

This utility model relates to the field of pipe coating technology, and in particular to an adjustable pipe inner wall coating device, including a robotic arm. A spray pipe is rotatably mounted on one side of the robotic arm, and support bars are movably mounted on both sides of the spray pipe. An adjustment component is provided between the support bars and the spray pipe. A scraper is detachably mounted on one side of the support bars, and a spray box is fixedly mounted on one end of the spray pipe. The adjustable pipe inner wall coating device of this application can achieve uniform and comprehensive spraying of the inner wall of the pipe, and facilitates the comprehensive scraping of the inner wall of the pipe after spraying. In addition, the distance between the support bars and the spray pipe can be adjusted to facilitate operation on the inner walls of pipes with different diameters.

Description

Technical Field

[0001] This utility model relates to a pipe inner wall coating device, and more particularly to an adjustable pipe inner wall coating device, belonging to the field of pipe coating technology. Background Technology

[0002] Pipelines, especially those transporting water, chemicals, oil, natural gas, and sewage, are prone to corrosion (such as rust and pitting) due to their inner walls being in constant contact with specific media. Coatings such as epoxy resin, polyurethane, cement mortar linings, and glass flakes can form a physical barrier between the pipe substrate and the transported medium, preventing direct contact between corrosive media and the metal. This significantly extends the pipeline's service life and prevents safety accidents and environmental pollution caused by corrosion, such as leaks and ruptures. Furthermore, coating the inner walls of pipelines can reduce fluid resistance, improve transport efficiency, prevent scaling and wax buildup, and facilitate cleaning.

[0003] The inner wall of the pipe is coated using a specialized brushing device, which solves the problem of manual access or difficulty in operation, and ensures that the coating meets specific performance requirements.

[0004] Existing pipe inner wall coating devices can spray paint and other coating materials onto the inner wall of pipes through the spray pipe during the spraying operation. However, it is difficult to spray the inner wall of the pipes completely, and the thickness of the spray is uneven. After spraying, the sprayed material cannot be evenly scraped, which affects the later use effect. Moreover, the existing spraying equipment is difficult to adapt to pipes of different diameters, which has certain limitations and low applicability and practicality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable pipe inner wall coating device.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] An adjustable pipe inner wall coating device includes a robotic arm, a spray pipe rotatably mounted on one side of the robotic arm, support bars movably mounted on both sides of the spray pipe, an adjustment component between the support bars and the spray pipe, a scraper detachably mounted on one side of the support bars, a spray box fixedly mounted at one end of the spray pipe, spray holes opened on both sides of the spray box, a driver fixedly mounted on one side of the robotic arm, a meshing gear mounted at the output end of the robotic arm, and a rotating gear fixedly mounted on the surface of the spray pipe, the rotating gear meshing with the meshing gear.

[0008] A further feature of this invention is that the adjusting component includes a double-grooved screw, which is movably inserted inside the spray tube. The double-grooved screw has a liquid passage groove inside that is connected to the spray box. A connecting hose is rotatably installed at the other end of the double-grooved screw. A support frame is fixedly installed on one side of the robotic arm, and the support frame is fixedly connected to the connecting hose.

[0009] A further feature of this invention is that both sides of the surface of the spray pipe are provided with sliding grooves, both ends of the double-threaded screw are movably fitted with movable threaded sleeves, a slider is fixedly installed on the outside of the movable threaded sleeve, and a movable seat is installed at one end of the slider through the sliding groove.

[0010] A further feature of this invention is that the movable seat is movably fitted onto the surface of the spray tube, and movable support rods are movably installed on both sides of the surface of the movable seat, with one end of each movable support rod being movably connected to a support bar.

[0011] A further feature of this invention is that an installation groove is provided on one side of the support strip, and an installation strip is fixedly installed on one side of the scraper, with the installation strip movably inserted inside the installation groove.

[0012] A further feature of this invention is that a locking hole is provided on one side of the mounting strip, a fixing box is fixedly installed on one side of the support strip, the fixing box is connected to the locking hole, a locking block is movably inserted on one side of the fixing box, and one end of the locking block is movably inserted inside the locking hole.

[0013] A further feature of this invention is that one side of the lower end of the locking block is inclined, a pull rod is fixedly installed on the upper end of the locking block, the upper end of the pull rod is movably inserted through the outside of the fixed box and a pull block is installed thereon, and a locking spring connected to the locking block is sleeved on the surface of the pull rod.

[0014] A further feature of this invention is that a baffle is fixedly installed at one end of the double-grooved screw, connecting grooves are provided on both sides of one end of the double-grooved screw, a retaining sleeve is movably fitted on the surface of the double-grooved screw, a connecting strip that mates with the connecting groove is provided on the inner wall of the retaining sleeve, a compression spring is installed between the retaining sleeve and the baffle, a groove is provided on one side of the rotating gear disk, a retaining gear ring is provided inside the groove, and a movable chuck that engages with the retaining gear ring is fixedly installed at one end of the retaining sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this application, the spray coating material enters the liquid passage inside the double-threaded screw through the connecting hose, and then enters the interior of the spray box through the liquid passage. It can be sprayed out through the spray holes on the surface of the spray box, which facilitates uniform spraying of the inner wall of the pipe. The driver drives the meshing gear and the rotating gear plate to rotate the spray tube. The spray tube drives the spray box to rotate, which can spray the inner wall of the pipe comprehensively. When the spray tube rotates, the movable support rod drives the support bar and scraper to rotate, which facilitates the comprehensive scraping of the inner wall of the pipe after spraying.

[0017] 2. In this application, when the user uses the device, pulling the ferrule moves the movable chuck, compressing the clamping spring to disengage the movable chuck, thus disengaging the movable chuck from the rotating gear plate so that the double-threaded screw can rotate. When the user rotates the double-threaded screw, the two movable sleeves move in opposite or opposite directions. The movable sleeves move the movable seat through the slider, and the movable seat moves one end of the movable support rod to adjust the distance between the support bar and the spray pipe, which facilitates scraping the inner wall of pipes of different diameters. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a half-sectional structural diagram of the scraper plate mounting location of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of a half-section of the robotic arm of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Robotic arm; 2. Spray tube; 3. Double-threaded screw; 4. Moving base; 5. Movable support rod; 6. Support bar; 7. Scraper; 8. Spray box; 9. Spray hole; 10. Engaging gear; 11. Rotating gear plate; 12. Support frame; 13. Connecting hose; 14. Driver; 15. Fixing box; 16. Locking hole; 17. Locking block; 18. Locking spring; 19. Pull rod; 20. Liquid passage groove; 21. Baffle; 22. Locking gear ring; 23. Moving chuck; 24. Sleeve; 25. Compression spring; 26. Connecting groove; 27. Connecting bar. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 4 As shown, the adjustable pipe inner wall coating device provided in this embodiment includes a robotic arm 1, a spray pipe 2 rotatably mounted on one side of the robotic arm 1, support bars 6 movably mounted on both sides of the spray pipe 2, an adjustment component between the support bars 6 and the spray pipe 2, a scraper 7 detachably mounted on one side of the support bars 6, a spray box 8 fixedly mounted on one end of the spray pipe 2, spray holes 9 opened on both sides of the spray box 8, a driver 14 fixedly mounted on one side of the robotic arm 1, a meshing gear 10 mounted on the output end of the robotic arm 1, and a rotating gear disk 11 meshing with the meshing gear 10 mounted on the surface of the spray pipe 2; a liquid passage groove 20 connected to the spray box 8 is opened inside the double-threaded screw 3, a connecting hose 13 is rotatably mounted on the other end of the double-threaded screw 3, a support frame 12 is fixedly mounted on one side of the robotic arm 1, and the support frame 12 is fixedly connected to the connecting hose 13;

[0026] In this embodiment, the spray paint enters the liquid channel 20 inside the double-grooved screw 3 through the connecting hose 13, and then enters the interior of the spray box 8 through the liquid channel 20. It can be sprayed out through the spray holes 9 on the surface of the spray box 8, which facilitates uniform spraying of the inner wall of the pipe. The driver 14 drives the meshing gear 10 and the rotating gear disk 11 to rotate the spray tube 2. The spray tube 2 drives the spray box 8 to rotate, which can spray the inner wall of the pipe comprehensively. When the spray tube 2 rotates, the movable support rod 5 drives the support bar 6 and the scraper 7 to rotate, which facilitates the smoothing of the inner wall of the pipe after spraying.

[0027] like Figure 4 and Figure 5 As shown, the adjustable pipe inner wall coating device provided in this embodiment has a baffle 21 fixedly installed at one end of the double-threaded screw 3, and connecting grooves 26 are provided on both sides of one end of the double-threaded screw 3. A retaining sleeve 24 is movably fitted on the surface of the double-threaded screw 3. A connecting strip 27 that cooperates with the connecting groove 26 is provided on the inner wall of the retaining sleeve 24. A compression spring 25 is installed between the retaining sleeve 24 and the baffle 21. A groove is provided on one side of the rotating gear disk 11. A retaining tooth ring 22 is provided inside the groove. A movable chuck 23 that engages with the retaining tooth ring 22 is fixedly installed at one end of the retaining sleeve 24.

[0028] In this embodiment, the compression spring 25 supports the ferrule 24, allowing the movable chuck 23 at one end of the ferrule 24 to insert into the internal groove of the rotating gear disk 11 and engage with the locking gear ring 22, so that the ferrule 24 and the spray tube 2 remain synchronized. The ferrule 24 and the double-threaded screw 3 remain synchronized through the connecting groove 26 and the connecting strip 27. When the spray tube 2 rotates, the double-threaded screw 3 can remain synchronized. The double-threaded screw 3 and the spray tube 2 remain stationary, avoiding affecting the use of the support strip 6 and the scraper 7.

[0029] like Figure 1 and Figure 2As shown, the adjustment component includes a double-grooved screw 3, which is movably inserted inside the spray tube 2. Slide grooves are provided on both sides of the surface of the spray tube 2. Movable screw sleeves are movably fitted on both ends of the double-grooved screw 3. A slider is fixedly installed on the outside of the movable screw sleeve. A movable seat 4 is installed through the slide groove at one end of the slider. The movable seat 4 is movably fitted on the surface of the spray tube 2. Movable support rods 5 are movably installed on both sides of the surface of the movable seat 4. One end of the movable support rod 5 is movably connected to the support bar 6.

[0030] In this embodiment, the user pulls the sleeve 24 to move the movable chuck 23, compressing the clamping spring 25 and causing the movable chuck 23 to disengage. The movable chuck 23 disengages from the rotating gear 11, allowing the double-threaded screw 3 to rotate. When the user rotates the double-threaded screw 3, the two movable sleeves move in opposite or opposite directions. The movable sleeves move the movable seat 4 via the slider, and the movable seat 4 moves one end of the movable support rod 5 to adjust the distance between the support bar 6 and the spray pipe 2, facilitating scraping of the inner wall of pipes with different diameters.

[0031] like Figure 2 and Figure 3 As shown, a mounting groove is provided on one side of the support bar 6, and a mounting strip is fixedly installed on one side of the scraper 7. The mounting strip is movably inserted into the inside of the mounting groove. A locking hole 16 is provided on one side of the mounting strip. A fixing box 15 is fixedly installed on one side of the support bar 6. The fixing box 15 is connected to the locking hole 16. A locking block 17 is movably inserted on one side of the fixing box 15. One end of the locking block 17 is movably inserted into the inside of the locking hole 16. One side of the lower end of the locking block 17 is inclined. A pull rod 19 is fixedly installed on the upper end of the locking block 17. The upper end of the pull rod 19 is movably inserted into the outside of the fixing box 15 and a pull block is installed. A locking spring 18 connected to the locking block 17 is sleeved on the surface of the pull rod 19.

[0032] In this embodiment, the user pulls the pull block upwards, and the pull block drives the locking block 17 to move upwards via the pull rod 19, so that the locking block 17 moves upwards and is pulled out from the inside of the locking hole 16, retracting into the inside of the fixing box 15, so that the mounting strip can be pulled out from the inside of the mounting groove, making it convenient to replace the scraper 7.

[0033] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A device for adjustable brushing of inner wall of pipeline, comprising a mechanical arm (1), a spraying pipe (2) is rotatably installed on one side of the mechanical arm (1), characterized in that: Support bars (6) are movably installed on both sides of the spray tube (2). An adjustment component is provided between the support bars (6) and the spray tube (2). A scraper (7) is detachably installed on one side of the support bars (6). A spray box (8) is fixedly installed at one end of the spray tube (2). Spray holes (9) are opened on both sides of the spray box (8). A driver (14) is fixedly installed on one side of the robotic arm (1). A meshing gear (10) is installed at the output end of the robotic arm (1). A rotating gear disk (11) that meshes with the meshing gear (10) is installed on the surface of the spray tube (2).

2. The adjustable in-ditch painting device of claim 1, wherein: The adjustment assembly includes a double-grooved screw (3), which is movably inserted inside the spray tube (2). The double-grooved screw (3) has a liquid passage groove (20) connected to the spray box (8) inside. A connecting hose (13) is rotatably installed at the other end of the double-grooved screw (3). A support frame (12) fixedly connected to the connecting hose (13) is installed on one side of the robotic arm (1).

3. The adjustable in-ditch painting device of claim 2, wherein: The spray pipe (2) has grooves on both sides of its surface. The two ends of the double-threaded screw (3) are movably fitted with movable threaded sleeves. A slider is fixedly installed on the outside of the movable threaded sleeve. A movable seat (4) is installed at one end of the slider through the groove.

4. The adjustable in-ditch painting device of claim 3, wherein: The movable seat (4) is movably fitted on the surface of the spray pipe (2). Movable support rods (5) are movably installed on both sides of the surface of the movable seat (4). One end of the movable support rod (5) is movably connected to the support bar (6).

5. The adjustable pipe inner wall coating device according to claim 1, characterized in that: The support bar (6) has an installation groove on one side, and the scraper (7) has an installation bar fixedly installed on one side, with the installation bar movably inserted into the installation groove.

6. The adjustable in-ditch painting device of claim 5, wherein: A card hole (16) is provided on one side of the mounting strip, and a fixing box (15) is fixedly installed on one side of the support strip (6). The fixing box (15) is connected to the card hole (16), and a card block (17) is movably inserted on one side of the fixing box (15). One end of the card block (17) is movably inserted into the inside of the card hole (16).

7. The adjustable in-ditch painting device of claim 6, wherein: The lower end of the locking block (17) is inclined on one side. A pull rod (19) is fixedly installed on the upper end of the locking block (17). The upper end of the pull rod (19) is movably inserted through the outside of the fixed box (15) and is equipped with a pull block. A locking spring (18) connected to the locking block (17) is sleeved on the surface of the pull rod (19).

8. The adjustable in-ditch painting device of claim 7, wherein: A baffle (21) is fixedly installed at one end of the double-grooved screw (3). Connecting grooves (26) are provided on both sides of one end of the double-grooved screw (3). A retainer (24) is movably fitted on the surface of the double-grooved screw (3). A connecting strip (27) that cooperates with the connecting groove (26) is provided on the inner wall of the retainer (24). A compression spring (25) is installed between the retainer (24) and the baffle (21). A groove is provided on one side of the rotating gear disk (11). A retaining gear ring (22) is provided inside the groove. A movable chuck (23) that engages with the retaining gear ring (22) is fixedly installed at one end of the retainer (24).

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