Coating device for outer anti-corrosion layer of oil depot pipeline

Abstract

The invention relates to the technical field of spraying equipment, and discloses an oil depot pipeline outer anti-corrosion layer coating device which comprises fixed circular rings located on the two sides of a pipeline joint, each fixed circular ring is composed of two hinged arc-shaped plates, and a fixed seat sliding in the circumferential direction is arranged between the fixed circular rings; a driving mechanism for driving the fixed seat to slide is arranged on the fixed seat, a storage barrel is arranged on the fixed seat, a piston is arranged in the storage barrel in a sliding mode, a transmission mechanism for driving the piston to move along the circumference of the fixed seat is arranged on the fixed seat, an inclined plate is arranged on one side of the fixed seat, and a first sliding groove is formed in the inclined plate. According to the pipeline spraying device, the spraying device can be conveniently fixed to a pipeline, meanwhile, the surface of the pipeline is automatically sprayed, spraying is uniform, the spraying device can be automatically switched to the other side after one circle of spraying is completed, and therefore the conditions of non-uniform spraying and spraying coverage are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of injection equipment, in particular to an anti-corrosion coating device for the outer surface of an oil depot pipeline. Background Art

[0002] Oil depots are the link for coordinating crude oil production, crude oil processing, refined oil supply and transportation, and are of great significance for safeguarding national defense and promoting the rapid development of the national economy. Oil depot pipelines are the bridge connecting crude oil production, processing and supply.

[0003] When burying the oil depot pipeline, it is necessary to coat the outer layer of the oil depot pipeline with anti-corrosion coating because the pipeline is affected by various corrosion factors such as soil moisture and metabolic activities of microorganisms. In order to facilitate transportation, the pipeline is generally divided into multiple sections and then welded on site. In order to ensure the sealing and corrosion resistance between the pipe heads, sandblasting will be carried out first, and then the pipeline surface will be cleaned, and then the paint will be sprayed on the pipeline joints and around the joints. Finally, the heat shrink sleeve will be put on the pipeline joints, and the heat shrink sleeve will be heated, shrinking, and tightly wrapped around the pipeline joints to achieve a sealing effect.

[0004] When spraying the anti-corrosion coating, the anti-corrosion coating is usually poured on the surface of the pipeline, and then the worker holds a brush to evenly apply the coating on the surface of the pipeline, which is time-consuming and easily leads to uneven spraying. In the prior art, the anti-corrosion coating can be automatically sprayed on the pipeline. For example, a pipeline inner wall spraying device disclosed in publication number CN117139016B can spray the anti-corrosion coating on the inner wall of the pipeline while moving. Two nozzles rotate to spray the inner wall, and at the same time drive the two nozzles to move. At this time, the movement trajectory of the sprayed coating is spiral, and the movement speed of the nozzle needs to be precisely controlled. If it is too fast, part of the inner wall will not be sprayed with coating, and if it is too slow, it will cause coating coverage, resulting in an excessively thick anti-corrosion layer and a waste of coating. When spraying the outer wall of the pipeline, it generally starts from one end of the pipeline and ends at the other end, that is, the spraying device is sleeved on one end of the pipeline. When connecting the pipeline on site, the pipeline is first padded, and then welding and other operations are performed. There are obstructions at both ends of the pipeline, and the spraying device cannot enter. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide an anti-corrosion coating device for the outer surface of an oil depot pipeline.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: an anti-corrosion coating device for the outer pipe of an oil depot, comprising two pipes, fixed rings are arranged on both sides of the connection of the two pipes, the fixed rings are composed of two hinged arc plates, a fixed seat sliding along the circumferential direction is arranged between the fixed rings, a driving mechanism driving the fixed seat to slide is arranged on the fixed seat, a storage cylinder is arranged on the fixed seat, a piston is slidingly arranged in the storage cylinder, a transmission mechanism is arranged on the fixed seat for the fixed seat to drive the piston to move along the circumferential motion, an inclined plate is arranged on one side of the fixed seat, a slide groove 1 is arranged on the inclined plate, and a plurality of slide grooves communicating with the slide groove 1 are arranged on the inclined plate The second slide groove is perpendicular to the first slide groove, and a sliding block is provided in the first slide groove for sliding. The sliding block can change from sliding in the first slide groove to sliding in the second slide groove. A telescopic arc rod is provided on one side of the sliding block, and a spray pipe is provided at one end of the telescopic arc rod. The spray pipe fits the surface of the pipeline. A connecting pipe is provided between the storage cylinder and the spray pipe. The driving mechanism drives the fixed seat to move in a circle, and the movement of the fixed seat drives the transmission mechanism. The transmission mechanism pushes the piston to make the anti-corrosion layer paint enter the spray pipe from the connecting pipe, and the spray pipe sprays the paint on the outer surface of the pipeline. After rotating one circle, the sliding block first slides in the second slide groove, and then slides in the first slide groove to drive the spray pipe to move horizontally into the next slide groove two.

[0007] As an improvement, the driving mechanism includes arc-shaped teeth arranged on the arc-shaped plate, a rotating shaft 1 is rotatably provided on the bottom surface of the fixed seat, gears 1 meshing with the arc-shaped teeth are provided at both ends of the rotating shaft 1, gear 2 is provided in the middle of the rotating shaft 1, a rotating shaft 2 is rotatably provided on the fixed seat, a gear 3 meshing with gear 2 is slidably provided on the rotating shaft 2, and the rotation of the rotating shaft 2 can drive the rotation of gear 3.

[0008] As an improvement, the inclined plate is provided with fixed rods arranged correspondingly on both sides for sliding, and a spring is provided between the fixed rod and the inclined plate, a sliding column is provided between the fixed rods, a connecting rod is sleeved on the sliding column, one end of the connecting rod is fixedly connected to the sliding block, an extension plate is provided on the sliding block, a support plate is provided between the fixed circular rings, a baffle corresponding to the second slide groove and cooperating with the extension plate is provided on the bottom surface of the support plate, a moving mechanism for driving the sliding block to slide in the first slide groove is provided on the fixed seat, and a sliding block is provided on the fixed seat for sliding from the second slide groove into the first slide groove so that the driving mechanism drives the fixed seat to move in a circular motion and changes it into an adjustment mechanism for driving the moving mechanism.

[0009] As an improvement, the moving mechanism includes a rotating shaft three rotatably arranged on a fixed seat, a gear four is provided on the rotating shaft three, a winding drum is provided on the rotating shaft three, a connecting rope is provided between the winding drum and the slider, and a guide roller cooperating with the connecting rope is provided on the inclined plate.

[0010] As an improvement, the adjustment mechanism includes a triangular plate arranged on one of the fixed rods, a sliding sleeve is rotatably provided on the gear two, a through hole is provided on the fixed seat, an extension rod is provided on the sliding sleeve and located in the through hole, a reset spring is provided between the extension rod and the fixed seat, an L-shaped rod is provided on the extension rod, and one end of the L-shaped rod is provided with an inclined groove that cooperates with the triangular plate and fits with the triangular plate.

[0011] As an improvement, the transmission mechanism includes a threaded sleeve arranged at one end of the piston, a threaded column 1 is threadedly connected to the threaded sleeve, a connecting block is slidably provided on the fixed seat, a threaded column 2 for driving the connecting block to slide is rotatably provided on the fixed seat, the threaded column 2 is threadedly connected to the connecting block, the connecting block is rotatably connected to the threaded column 1, a driven wheel is provided at one end of the threaded column 2, a driving wheel is provided on the rotating shaft 1, and a transmission belt is provided between the driving wheel and the driven wheel.

[0012] As an improvement, a sliding block is provided on the bottom surface of the slider, and the width of the sliding block is smaller than the width of the slide groove one. When the slider moves in the slide groove one, it drives the extension plate to move, so that the extension plate is no longer in contact with one of the baffles. The slider will move toward the direction of the slide groove two, so that the extension plate passes between the two baffles and is located on the other side of the baffle.

[0013] The advantages of the present invention compared with the prior art are: 1. By setting two hinged arc plates, it is convenient to sleeve the fixed ring on the pipeline, so as to facilitate the subsequent spraying of anti-corrosion layer on the pipeline connection; 2. The fixed seat is driven to move in a circular motion by the driving mechanism. The fixed seat drives the piston to move while moving in a circular motion to make the coating liquid discharge evenly. After moving in a circle, the slider is driven to move by the moving mechanism, so that the position of the spray pipe can be changed; 3. Through the setting of the support plate, baffle, extension plate, fixed rod and spring, after spraying a circle on the pipe, the baffle will drive the slider from the second slide groove to the first slide groove, and the driving mechanism will drive the fixed seat to move in a circular motion through the adjustment mechanism, so that the position of the injection pipe can be automatically changed after spraying a circle, so as to avoid uneven spraying and spray coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of an anti-corrosion coating device for the outer surface of an oil depot pipeline according to the present invention.

[0015] Figure 2 The present invention is a schematic diagram of the working state of an anti-corrosion coating device for an outer portion of an oil depot pipeline.

[0016] Figure 3 This is a schematic diagram of the structure of an anti-corrosion coating device for an oil depot pipeline according to the present invention. Figure 1 .

[0017] Figure 4This is a schematic diagram of the structure of an anti-corrosion coating device for an oil depot pipeline according to the present invention. Figure 2 .

[0018] Figure 5 The present invention is a schematic diagram of the positions of an extension plate and a baffle of an anti-corrosion coating device for an outer portion of an oil depot pipeline.

[0019] Figure 6 The present invention is a schematic diagram of a transmission mechanism of an anti-corrosion coating device for an outer portion of an oil depot pipeline.

[0020] Figure 7 The present invention is a schematic diagram of an adjustment mechanism of an anti-corrosion coating device for an outer portion of an oil depot pipeline.

[0021] Figure 8 The present invention is a schematic diagram of the positions of a sliding block and a sliding groove of an anti-corrosion coating device for an outer surface of an oil depot pipeline.

[0022] Fig. 9 The present invention is a cross-sectional view of an anti-corrosion coating device for an outer portion of an oil depot pipeline.

[0023] Fig.10 The invention is an anti-corrosion coating device for the outer surface of an oil depot pipeline Fig. 9 Enlarged view of point A in the middle.

[0024] Fig.11 It is a stereoscopic diagram of a spray pipe of an anti-corrosion coating device for an oil depot pipeline according to the present invention.

[0025] As shown in the figure: 1. Pipe; 11. Fixed ring; 12. Arc plate; 13. Fixed column; 14. Arc support plate; 2. Fixed seat; 3. Driving mechanism; 31. Arc teeth; 32. Rotating shaft 1; 33. Gear 1; 34. Gear 2; 35. Rotating shaft 2; 36. Gear 3; 4. Storage cylinder; 41. Piston; 42. Liquid inlet pipe; 5. Inclined plate; 51. Slide 1; 52. Slide 2; 53. Sliding block; 54. Telescopic arc rod; 541. Arc sleeve; 542. Arc connecting rod; 55. Spray pipe; 551. Spray head; 56 , connecting pipe; 6, transmission mechanism; 61, threaded sleeve; 62, threaded column one; 63, connecting block; 64, threaded column two; 65, driven wheel; 66, driving wheel; 67, transmission belt; 7, fixing rod; 71, spring; 72, sliding column; 73, connecting rod; 74, extension plate; 75, support plate; 76, baffle; 8, moving mechanism; 81, rotating shaft three; 82, gear four; 83, winding drum; 84, connecting rope; 85, guide roller; 9, adjusting mechanism; 91, triangle plate; 92, sliding sleeve; 93, extension rod; 94, reset spring; 95, L-shaped rod. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 , Attachment Fig. 9 , Fig.11 As shown, an anti-corrosion coating device for the outer pipe of an oil depot comprises two pipes 1, and a fixing ring 11 is arranged on both sides of the connection of the two pipes 1, and the fixing ring 11 is composed of two hinged arc plates 12, and a fixing column 13 is arranged on the arc plate 12, and an arc support plate 14 which fits the pipe 1 is arranged on the fixing column 13, and a fixing seat 2 which slides along the circumferential direction is arranged between the fixing rings 11, and a driving mechanism 3 which drives the fixing seat 2 to slide is arranged on the fixing seat 2, and a storage cylinder 4 is arranged on the fixing seat 2, and a piston 41 is slidably arranged in the storage cylinder 4, and a liquid inlet pipe 42 is arranged on the storage cylinder 4, and a sealing cover is threadedly connected to the liquid inlet pipe 42, and a sliding belt for the fixing seat 2 to slide along the circumferential motion is arranged on the fixing seat 2 A transmission mechanism 6 for moving the movable piston 41 has an inclined plate 5 on one side of the fixed seat 2, a slide groove 1 51 is provided on the inclined plate 5, a plurality of slide grooves 2 52 communicating with the slide groove 1 51 are provided on the inclined plate 5, and the slide grooves 2 52 are perpendicular to the slide groove 1 51, a slider 53 is provided for sliding in the slide groove 1 51, and the slider 53 can change from sliding in the slide groove 1 51 to sliding in the slide groove 2 52, a telescopic arc rod 54 is provided on one side of the slider 53, and a spray pipe 55 is provided at one end of the telescopic arc rod 54, and the spray pipe 55 is in contact with the surface of the pipeline 1, a connecting pipe 56 is provided between the storage cylinder 4 and the spray pipe 55, and the connecting pipe 56 is a hose, and the connecting pipe 56 passes through the slider 53 and is connected to the spray pipe 55, and a plurality of spray heads 551 are provided on the spray pipe 55.

[0028] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 7 As shown, the telescopic arc rod 54 includes an arc sleeve 541 arranged on one side of the slider 53, an arc connecting rod 542 is sleeved in the arc sleeve 541, a bolt is threadedly connected to the arc connecting rod 542, and a sliding hole is provided on the arc sleeve 541.

[0029] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 As shown, the driving mechanism 3 drives the fixed seat 2 to move in a circle, and the movement of the fixed seat 2 drives the transmission mechanism 6. The transmission mechanism 6 pushes the piston 41 to allow the anti-corrosion layer paint to enter the injection pipe 55 from the connecting pipe 56. The injection pipe 55 sprays the paint on the outer surface of the pipeline 1. After rotating one circle, the slider 53 first slides in the second slide groove 52, and then slides in the first slide groove 51 to drive the injection pipe 55 to move horizontally into the next second slide groove 52.

[0030] The working principle of the present invention is as follows: the two arc plates 12 are separated, and then the pipeline 1 is located between the arc plates 12, and the two arc plates 12 are fixed by bolts. The arc plates 12 on the other side are operated in the same way. Since the sizes of the pipelines are the same, the pipeline 1 is fixed by the arc support plates 14 on the two arc plates 12. At this time, the fixing seat 2 is located at the bottom of the fixing ring 11, and the driving mechanism 3 drives the fixing seat 2 to move in the circumferential direction, thereby driving the injection pipe 55 to move along the periphery of the pipeline 1. The fixing seat 2 drives the transmission mechanism 6 while moving in the circumference, and the transmission mechanism 6 drives the piston 41 to move, and the piston 41 squeezes The paint in the storage cylinder 4, and the injection head 551 on the injection tube 55 has a small aperture, so that pressure is generated in the storage cylinder 4, so that the paint is sprayed from the injection head 551 to the surface of the pipeline 1. After rotating one circle, the slider 53 enters the chute 1 51 from the chute 2 52, and then the slider 53 moves to the next chute 2 52. When the slider 53 is in the next chute 2 52, the left end of the injection tube 55 at the new position and the right end of the injection tube 55 at the old position are in the same plane, so that the paint will not be sprayed on the same place multiple times, saving materials and ensuring the uniformity of the coating.

[0031] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 6 As shown, the driving mechanism 3 includes an arc-shaped tooth 31 arranged on the arc-shaped plate 12, a rotating shaft 32 is rotatably provided on the bottom surface of the fixed base 2, gears 33 meshing with the arc-shaped teeth 31 are provided at both ends of the rotating shaft 32, a gear 34 is provided in the middle of the rotating shaft 32, a rotating shaft 2 35 is rotatably provided on the fixed base 2, the rotating shaft 2 35 is driven by a motor, a gear 36 meshing with the gear 2 34 is slidably provided on the rotating shaft 2 35, and the rotation of the rotating shaft 2 35 can drive the gear 3 36 to rotate.

[0032] Working principle of driving mechanism 3: the motor drives rotating shaft 2 35 to rotate, rotating shaft 2 35 drives gear 3 36 to rotate, gear 3 36 drives gear 2 34 to rotate, gear 2 34 drives rotating shaft 1 32 to rotate, rotating shaft 1 32 drives gear 1 33 at both ends to rotate, and gear 1 33 rotates while moving along the arc-shaped teeth 31 under the action of arc-shaped teeth 31, thereby driving the fixed seat 2 to move in a circle.

[0033] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 7 , Attachment Fig. 9As shown, the inclined plate 5 is slidably provided with fixed rods 7 arranged correspondingly on both sides, and a spring 71 is provided between the fixed rod 7 and the inclined plate 5, a sliding column 72 is provided between the fixed rods 7, a connecting rod 73 is sleeved on the sliding column 72, one end of the connecting rod 73 is fixedly connected to the slider 53, and an extension plate 74 is provided on the slider 53. A support plate 75 is provided between the fixed rings 11, and a baffle 76 corresponding to the second slide groove 52 and cooperating with the extension plate 74 is provided on the bottom surface of the support plate 75. A moving mechanism 8 for driving the slider 53 to slide in the first slide groove 51 is provided on the fixed seat 2, and a slider 53 is provided on the fixed seat 2 to slide from the second slide groove 52 into the first slide groove 51, so that the driving mechanism 3 drives the fixed seat 2 to move in a circular motion, and the adjustment mechanism 9 is changed to drive the moving mechanism 8.

[0034] Working principle: In the initial state, the slider 53 is located in the second slide groove 52, the spring 71 is in a relaxed state, and the driving mechanism 3 drives the fixed seat 2 to move in a circular motion. When rotating one circle faster, the extension plate 74 will gradually approach the support plate 75, and then the extension plate 74 will fit with the baffle 76 on the bottom of the support plate 75, and the fixed seat 2 will continue to move in a circular motion. Since the support plate 75 is fixed on the fixed ring 11, the slider 53 and the fixed rod 7 do not move, and the fixed seat 2 continues to move, which causes the spring 71 to be compressed. At this time, the slider 53 enters the first slide groove 52 from the second slide groove 52. 1, the adjusting mechanism 9 causes the driving mechanism 3 to drive the fixed seat 2 to move in a circular motion and then drives the moving mechanism 8, and then the moving mechanism 8 drives the slider 53 to slide in the slide groove 1 51. When sliding to the slide groove 2 52, the spring 71 pushes the fixing rod 7 to reset, and the slider 53 enters the slide groove 2 52. The spray pipe 55 fits the surface of the pipeline 1. While the spring 71 pushes the fixing rod 7 to reset, the adjusting mechanism 9 resets, so that the driving mechanism 3 drives the moving mechanism 8 to drive the fixed seat 2 to move in a circular motion, thereby continuing to spray the anti-corrosion paint on the surface of the pipeline 1.

[0035] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 As shown, the moving mechanism 8 includes a rotating shaft 3 81 rotatably set on the fixed seat 2, a gear 4 82 is provided on the rotating shaft 3 81, a winding drum 83 is provided on the rotating shaft 3 81, a connecting rope 84 is provided between the winding drum 83 and the slider 53, and a guide roller 85 cooperating with the connecting rope 84 is provided on the inclined plate 5.

[0036] Working principle of moving mechanism 8: the movement of adjusting mechanism 9 moves gear 2 34 in driving mechanism 3, so that gear 2 34 becomes meshed with gear 4 82 due to the meshing of gear 3 36, and gear 2 34 rotates to drive gear 4 82, and the rotation of gear 4 82 drives shaft 3 81 to rotate, and shaft 3 81 drives winding drum 83 to rotate, and winding drum 83 winds up connecting rope 84, thereby driving slider 53 to slide in slide groove 1 51.

[0037] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 6 , Attachment Figure 7 As shown, the adjusting mechanism 9 includes a triangular plate 91 arranged on one of the fixed rods 7, a sliding sleeve 92 is rotatably provided on the gear 2 34, a through hole is provided on the fixed seat 2, an extension rod 93 located in the through hole is provided on the sliding sleeve 92, a reset spring 94 is provided between the extension rod 93 and the fixed seat 2, an L-shaped rod 95 is provided on the extension rod 93, and one end of the L-shaped rod 95 is provided with an inclined groove that cooperates with the triangular plate 91 and fits with the triangular plate 91.

[0038] Working principle of the adjustment mechanism 9: in the initial state, the reset spring 94 is in a relaxed state. When the fixed seat 2 moves in a circle, the slider 53 is forced to remain stationary under the action of the baffle 76 and the extension plate 74, while the fixed seat 2 continues to move, so that the slider 53 enters the slide groove 1 51 from the slide groove 2 52. Under the action of the triangular plate 91, the L-shaped rod 95 drives the sliding sleeve 92 to move, and the sliding sleeve 92 drives the gear 2 34 to move, so that the gear 2 34 changes from meshing with the gear 3 36 to meshing with the gear 4 82. When the slider 53 enters the next slide groove 2 52, the reset spring 94 pushes the sliding sleeve 92 to reset, thereby driving the gear 2 34 to reset, and the gear 2 34 meshes with the gear 3 36 again.

[0039] Combined with Figure 2 , Attachment Figure 6 , Attachment Fig. 9 , Attachment Fig.10 As shown, the transmission mechanism 6 includes a threaded sleeve 61 arranged at one end of the piston 41, a threaded column 1 62 is threadedly connected to the threaded sleeve 61, a connecting block 63 is slidably provided on the fixed seat 2, a threaded column 2 64 is rotatably provided on the fixed seat 2 for driving the connecting block 63 to slide, the threaded column 2 64 is threadedly connected to the connecting block 63, the connecting block 63 is rotatably connected to the threaded column 1 62, a driven wheel 65 is provided at one end of the threaded column 2 64, a driving wheel 66 is provided on the rotating shaft 1 32, and a transmission belt 67 is provided between the driving wheel 66 and the driven wheel 65.

[0040] The working principle of the transmission mechanism 6 is as follows: the motor drives the second gear 34 to rotate, the second gear 34 drives the third gear 36 to rotate, the third gear 36 drives the rotating shaft 1 32 to rotate, the driving wheel 66 on the rotating shaft 1 32 rotates, the driving wheel 66 drives the driven wheel 65 to rotate through the transmission belt 67, the driven wheel 65 drives the second threaded column 64 to rotate, the rotation of the second threaded column 64 drives the connecting block 63 to move, the connecting block 63 drives the first threaded column 62 and the threaded sleeve 61 to move, thereby driving the piston 41 to move, so that the paint enters the connecting pipe 56 from the storage cylinder 4, and then The paint is sprayed out from the spray head 551 on the spray pipe 55. After the paint is added to the storage cylinder 4, there is no paint in the connecting pipe 56 and the spray pipe 55. At this time, the threaded column 62 is rotated to lengthen the length of the threaded column 62 and the threaded sleeve 61, thereby pushing the piston 41 to move and allowing the paint to enter the connecting pipe 56 and the spray pipe 55. When the connecting pipe 56 and the spray pipe 55 are full of paint, the threaded column 62 is stopped from rotating, so that the paint can be discharged from the spray head 551 on the spray pipe 55 in time when the fixing seat 2 moves in a circular motion.

[0041] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 8 As shown, a sliding block 531 is provided on the bottom surface of the slider 53, and the width of the sliding block 531 is smaller than the width of the slide groove 1 51. When the slider 53 moves in the slide groove 1 51, it drives the extension plate 74 to move, so that the extension plate 74 is no longer in contact with one of the baffles 76. The slider 53 will move toward the slide groove 2 52, so that the extension plate 74 passes between the two baffles 76 and is located on the other side of the baffle 76, so that the baffle 76 no longer blocks the extension plate 74 from moving in a circle. Since the movement range is not large, the gear 2 34 and the gear 4 82 remain in meshing.

[0042] In specific use, first pour the paint into the storage cylinder 4 through the liquid inlet pipe 42, then tighten the sealing cap, and then rotate the threaded column 62 to lengthen the length of the threaded column 62 and the threaded sleeve 61, thereby pushing the piston 41 to move. When the paint fills the connecting pipe 56 and the injection pipe 55, stop rotating the piston, break the two arc plates 12 apart, and then make the pipeline 1 located between the arc plates 12, fix the two arc plates 12 with bolts, and operate the arc plate 12 on the other side in the same way. At this time, the fixing seat 2 is located at the bottom of the fixing ring 11, and then start the motor, the motor drives the driving mechanism 3, the driving mechanism 3 drives the fixing seat 2 to move in a circle, and the fixing seat 2 moves in a circle The transmission mechanism 6 is driven, and the transmission mechanism 6 drives the piston 41 to move, so that the paint is evenly sprayed from the spray head 551 onto the surface of the pipe 1. After rotating one circle, the slider 53 is located in the slide groove 1 51. The adjustment mechanism 9 enables the driving mechanism 3 to drive the fixed seat 2 to move in a circle and then drive the moving mechanism 8. The moving mechanism 8 drives the slider 53 to slide in the slide groove 1 51. When it reaches the next slide groove 2 52, the spring 71 pushes the fixing rod 7 and the slider 53 to reset, so that the slider 53 enters the slide groove 2 52, and then continues to spray the anti-corrosion paint on the surface of the pipe. When the spraying is completed, the two arc plates 12 are released by bolts, and then the arc plates 12 can be removed.

[0043] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An anti-corrosion coating device for an oil depot pipeline, comprising a fixed ring (11) located on both sides of a connection of a pipeline (1), the fixed ring (11) being composed of two hinged arc plates (12), characterized in that: A fixed seat (2) is provided between the fixed circular rings (11) and is slidable in a circumferential direction. A driving mechanism (3) is provided on the fixed seat (2) and is used to drive the fixed seat (2) to slide. A storage cylinder (4) is provided on the fixed seat (2). A piston (41) is slidably provided in the storage cylinder (4). A transmission mechanism (6) is provided on the fixed seat (2) and is used to drive the piston (41) to move along a circumferential motion. An inclined plate (5) is provided on one side of the fixed seat (2). A slide groove (51) is provided on the inclined plate (5). The inclined plate (5) is provided with a plurality of second slide grooves (52) communicating with the first slide groove (51), and the second slide grooves (52) are perpendicular to the first slide groove (51). A slider (53) is slidably provided in the first slide groove (51), and the slider (53) can change from sliding in the first slide groove (51) to sliding in the second slide groove (52). A telescopic arc rod (54) is provided on one side of the slider (53), and a spray pipe (55) is provided at one end of the telescopic arc rod (54). A connecting pipe (56) is provided between the storage cylinder (4) and the spray pipe (55); The driving mechanism (3) drives the fixed seat (2) to move in a circular motion. The movement of the fixed seat (2) drives the transmission mechanism (6). The transmission mechanism (6) pushes the piston (41) to allow the anti-corrosion coating to enter the injection pipe (55) from the connecting pipe (56). The injection pipe (55) injects the coating onto the outer surface of the pipeline (1). After one rotation, the slider (53) first slides in the second slide groove (52), and then slides in the first slide groove (51) to drive the injection pipe (55) to move horizontally into the next second slide groove (52).

2. The oil depot pipeline outer anti-corrosion coating device according to claim 1 is characterized by: The driving mechanism (3) comprises an arc-shaped tooth (31) arranged on the arc-shaped plate (12); a rotating shaft (32) is rotatably provided on the bottom surface of the fixed seat (2); gears (33) meshing with the arc-shaped tooth (31) are provided at both ends of the rotating shaft (32); a gear (34) is provided in the middle of the rotating shaft (32); a rotating shaft (35) is rotatably provided on the fixed seat (2); a gear (36) meshing with the gear (34) is slidably provided on the rotating shaft (35); the rotating shaft (35) rotates to drive the gear (36) to rotate.

3. The oil depot pipeline outer anti-corrosion coating device according to claim 2 is characterized by: The inclined plate (5) is provided with fixed rods (7) arranged correspondingly on both sides thereof, and a spring (71) is provided between the fixed rods (7) and the inclined plate (5), a sliding column (72) is provided between the fixed rods (7), a connecting rod (73) is sleeved on the sliding column (72), one end of the connecting rod (73) is fixedly connected to the slider (53), an extension plate (74) is provided on the slider (53), a support plate (75) is provided between the fixed circular rings (11), a baffle plate (76) corresponding to the second slide groove (52) and cooperating with the extension plate (74) is provided on the bottom surface of the support plate (75), a moving mechanism (8) for driving the slider (53) to slide in the first slide groove (51) is provided on the fixed seat (2), and an adjusting mechanism (9) is provided on the fixed seat (2) for driving the slider (53) to slide from the second slide groove (52) into the first slide groove (51) so that the driving mechanism (3) drives the fixed seat (2) to drive the circular motion into the driving moving mechanism (8).

4. The oil depot pipeline outer anti-corrosion coating device according to claim 3 is characterized by: The moving mechanism (8) comprises a rotating shaft (81) rotatably arranged on the fixed seat (2), a gear (82) being arranged on the rotating shaft (81), and the gear (36) being meshed with the gear (82) after being moved, a winding drum (83) being arranged on the rotating shaft (81), a connecting rope (84) being arranged between the winding drum (83) and the slider (53), and a guide roller (85) cooperating with the connecting rope (84) being arranged on the inclined plate (5).

5. The oil depot pipeline outer anti-corrosion coating device according to claim 3 is characterized by: The adjustment mechanism (9) comprises a triangular plate (91) arranged on one of the fixed rods (7); a sliding sleeve (92) is rotatably arranged on the gear three (36); a through hole is arranged on the fixed seat (2); an extension rod (93) is arranged on the sliding sleeve (92) and is located in the through hole; a return spring (94) is arranged between the extension rod (93) and the fixed seat (2); an L-shaped rod (95) is arranged on the extension rod (93); one end of the L-shaped rod (95) is provided with an inclined groove that matches the triangular plate (91) and is in contact with the triangular plate (91).

6. The oil depot pipeline outer anti-corrosion coating device according to claim 2 is characterized by: The transmission mechanism (6) comprises a threaded sleeve (61) arranged at one end of the piston (41), a threaded column (62) being threadedly connected to the threaded sleeve (61), a connecting block (63) being slidably provided on the fixed seat (2), a threaded column (64) being rotatably provided on the fixed seat (2) for driving the connecting block (63) to slide, the threaded column (64) being threadedly connected to the connecting block (63), the connecting block (63) being rotatably connected to the threaded column (62), a driven wheel (65) being provided at one end of the threaded column (64), a driving wheel (66) being provided on the rotating shaft (32), and a transmission belt (67) being provided between the driving wheel (66) and the driven wheel (65).

7. The oil depot pipeline outer anti-corrosion coating device according to claim 3 is characterized by: A sliding block (531) is provided on the bottom surface of the slider (53), and the width of the sliding block (531) is smaller than the width of the first slide groove (51). When the slider (53) moves in the first slide groove (51), the extension plate (74) is driven to move, so that the extension plate (74) and one of the baffles (76) are no longer in contact, and the slider (53) moves toward the second slide groove (52), so that the extension plate (74) passes between the two baffles (76) and is located on the other side of the baffle (76).

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