Flange spraying device

Abstract

The invention belongs to the technical field of flange spraying, and specifically is a flange spraying device, comprising two groups of connection components, the connection components comprising two rotatably connected No. 1 half rings, and also comprising: a plurality of No. 1 electric telescopic rods fixedly mounted on the inner wall of the No. 1 half ring; a plurality of connection blocks fixedly mounted on the No. 1 half ring; two No. 2 half rings rotatably mounted on the plurality of connection blocks; a plurality of long rods mounted on the No. 2 half rings; a threaded rod rotatably mounted on the No. 2 half rings; three telescopic blocks slidably mounted on the long rods; a paint spraying component mounted on the telescopic block, the paint spraying component comprising a spray head; a No. 1 and a half gears fixedly mounted on the outer wall of the No. 2 half rings; a motor fixedly mounted on the No. 1 half ring, the motor being connected to a main gear, and the motor driving the main gear to rotate can drive the No. 1 and a half gears to rotate; by setting two groups of connection components, the device can be fixed on the periphery of a pipeline and a flange before painting, so as to be easy to use.

Description

Technical Field

[0001] The invention belongs to the field of flange spraying, in particular to a flange spraying device. Background Art

[0002] In the system of conveying fluid pipelines, the integrity of flange connections is very important. If the flange leaks, it will have a huge impact on the surrounding environment, factory operation and business. If the flange has no protective measures and is directly exposed to the corrosive environment, the corrosion rate of the flange will accelerate. For this reason, a flange spraying device is required to spray a layer of corrosion protection strippable coating on the flange.

[0003] A patent application with publication number CN117943239A discloses a flange spray coating device, including a spraying table, a fixing frame installed on the spraying table, a hook installed on the fixing frame, and a spraying mechanism installed on the spraying table; the flange is fixed by the hook passing through the hole groove on the surface of the flange, and then the outer surface of the flange and the groove wall surface are sprayed by the spraying mechanism.

[0004] When the above-mentioned device is spraying the flange, the hook is inserted into the hole of the flange to clamp the flange, and then the spraying device is controlled to rotate and the flange is sprayed. For the flange that has been connected between two pipes and the sizes of the pipe and the flange are large, a transportation device with a stronger load-bearing capacity and a larger load-bearing range is needed to transport the pipe and the flange during the spraying process, which is more troublesome to use.

[0005] To this end, the present invention provides a flange spraying device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a flange spraying device described in the present invention includes two groups of connecting components, the connecting components include two rotatably connected No. 1 half rings, and also include: a number of No. 1 electric telescopic rods fixedly installed on the inner wall of the No. 1 half ring; a number of connecting blocks fixedly installed on the No. 1 half ring; two No. 2 half rings rotatably installed on a number of the connecting blocks; a number of long rods installed on the No. 2 half ring; a threaded rod rotatably installed on the No. 2 half ring; three telescopic blocks slidably installed on the long rods; a paint spraying component installed on the telescopic block, the paint spraying component includes a spray head; a No. 1 and a half gears fixedly installed on the outer wall of the No. 2 half ring; a motor fixedly installed on the No. 1 half ring, the motor is connected to a main gear, and the motor drives the main gear to rotate and can drive the No. 1 and a half gears to rotate.

[0008] Preferably, it also includes: a plurality of sliders radially slidably mounted on the second half ring, the number of the sliders being the same as the sum of the number of the long rods and the threaded rods, the long rods being fixedly connected to the sliders, and the threaded rods being rotatably connected to the sliders.

[0009] Preferably, it also includes: two No. 1 rack plates installed on the No. 2 half ring, the No. 1 rack plates adopt a telescopic structure, the No. 1 rack plates are meshed and connected with the slider, and the No. 1 rack plates are used to limit the unidirectional sliding of the slider; an L-shaped plate fixedly installed on the No. 1 electric telescopic rod; and a contact block fixedly installed at one end of the vertical part of the L-shaped plate.

[0010] Preferably, it also includes: a No. 1 folding rod rotatably installed on the two No. 1 rack plates; a No. 1 spring installed on the No. 1 rack plate and the No. 2 half ring, and the No. 1 rack plate is slidably connected to the No. 2 half ring; and a No. 2 spring installed on the slider and the No. 2 half ring.

[0011] Preferably, it also includes a round block rotatably mounted on the sliding block containing the threaded rod, the round block is fixedly connected to the threaded rod, a plurality of protrusions are installed on the round block, and a second folding rod is detachably installed between the three telescopic blocks.

[0012] Preferably, the paint spraying assembly further comprises two No. 2 telescopic rods fixedly mounted on the telescopic block, a rotating rod rotatably mounted on the movable end of the No. 2 telescopic rod, and the spray head is mounted on the rotating rod.

[0013] Preferably, the paint spraying assembly further comprises: a No. 2 gear fixedly mounted on the rotating rod; a No. 2 rack plate and a No. 3 rack plate mounted on the No. 2 telescopic rod, wherein the No. 2 rack plate and the No. 3 rack plate are used to drive the No. 2 gear to rotate.

[0014] Preferably, it further comprises a telescopic shell installed on the telescopic block, the telescopic shell is provided with a hole for the paint spraying assembly to extend out, and a cover plate is rotatably installed on the hole.

[0015] Preferably, it also includes: a third half ring fixedly mounted on the second half ring; a line mounted on the third half ring; a plurality of cylinders rotatably mounted on the line; a covering leather mounted on the cylinder, the covering leather being wound around the plurality of cylinders, and the other end of the covering leather being connected to the telescopic block.

[0016] Preferably, it also includes a third telescopic rod slidably mounted on the L-shaped plate, the contact block is slidably connected to the L-shaped plate, and the third telescopic rod is used to drive the contact block to slide relative to the L-shaped plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The flange spraying device described in the present invention, by setting two sets of connecting components, can fix the device on the periphery of the pipe and the flange before painting. There is no need to transport the pipe and the flange during the painting process, which saves the trouble of setting up additional pipe and flange transportation devices and is more convenient to use. The device can be applied to existing pipes and flanges that have been put into use, and can spray anti-corrosion coatings on flanges that have been repaired or flanges where the anti-corrosion coating is damaged after long-term use, and has a wider applicability.

[0019] 2. The flange spraying device described in the present invention, by setting a contact block and a No. 1 rack plate, can automatically adjust the distance between the paint spraying component and the outer wall of the pipe for pipes of different sizes when the No. 1 electric telescopic rod is extended to fix the connecting component on the outer periphery of the pipe, thereby ensuring the effect of painting. In conjunction with the No. 1 folding rod, after the painting is completed, the No. 1 electric telescopic rod is contracted, and the connecting component is removed from the pipe, so as to realize the action of automatically restoring the paint spraying component to its initial position, which is easy to use.

[0020] 3. The flange spraying device described in the present invention has a screw and a nut installed on the flange, and the screw and the nut are parallel to the pipe, and the direction of the nozzle is perpendicular to the surface of the pipe. Therefore, during the painting process, there is a situation that the two ends of the screw and the nut are not sprayed in place. By arranging a rotating rod, a second rack plate and a third rack plate, when the paint spraying assembly moves to both sides of the flange, the direction of the nozzle is made parallel to the pipe, and then the No. 2 telescopic rod can be controlled to extend, driving the rotating rod and the nozzle to approach the direction of the pipe until the nozzle can spray paint on both ends of the screw and the nut, thereby improving the above-mentioned problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the first half ring of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the first and a half gears of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the telescopic block of the present invention;

[0026] Figure 5 is a cross-sectional view of the first half ring of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the slider of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the first folding rod of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the second rack plate and the third rack plate of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the third half ring of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the line and cylinder of the present invention;

[0032] In the figure: 1, connecting assembly; 110, No. 1 half ring; 2, No. 1 electric telescopic rod; 3, connecting block; 4, No. 2 half ring; 5, long rod; 6, threaded rod; 7, telescopic block; 8, spray paint assembly; 81, nozzle; 82, No. 2 telescopic rod; 83, rotating rod; 84, No. 2 gear; 85, No. 2 rack plate; 86, No. 3 rack plate; 9, No. 1 and a half gear; 10, motor; 11, main gear; 12, slider; 13, No. 1 rack plate; 14, L-shaped plate; 15, round block; 16, contact block; 17, No. 1 folding rod; 18, No. 1 spring; 19, No. 2 spring; 20, bump; 21, No. 2 folding rod; 22, telescopic shell; 23, cover plate; 24, No. 3 half ring; 25, line; 26, cylinder; 27, cover leather; 28, No. 3 telescopic rod. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1, as Figure 1-Figure 10 As shown, a flange spraying device described in an embodiment of the present invention includes two groups of connecting components 1, and the connecting components 1 include two rotatably connected No. 1 half rings 110, and also include: a number of No. 1 electric telescopic rods 2 fixedly mounted on the inner wall of the No. 1 half ring 110; a number of connecting blocks 3 fixedly mounted on the No. 1 half ring 110; two No. 2 half rings 4 rotatably mounted on the number of the connecting blocks 3; a number of long rods 5 mounted on the No. 2 half ring 4; a threaded rod 6 rotatably mounted on the No. 2 half ring 4; three telescopic blocks 7 slidably mounted on the long rods 5; a paint spraying component 8 mounted on the telescopic block 7, and the paint spraying component 8 includes a spray head 81; a No. 1 and a half gear 9 fixedly mounted on the outer wall of the No. 2 half ring 4; a motor 10 fixedly mounted on the No. 1 half ring 110, and a main gear 11 is connected to the motor 10, and the motor 10 drives the main gear 11 to rotate, which can drive the No. 1 and a half gear 9 to rotate.

[0035] Specifically, after two pipes are connected by flanges, a flange spraying device is required to coat the flange and the pipe part near the flange with anti-corrosion paint to form a coating for anti-corrosion protection of the flange; when spraying the flange, the existing device usually inserts a clamping mechanism into the hole of the flange to clamp the flange, and then controls the spraying device to rotate and spray the flange. When spraying the flange that has been connected between two pipes, and the sizes of the pipe and the flange are large, the device needs to use an additional device to pass the pipe and the flange through the middle of the spraying device, which is more troublesome to use; The pipeline anti-corrosion protection adopts the method of spraying anti-corrosion paint on the flange. In the initial state, the No. 1 electric telescopic rod 2 is in a retracted state. Before work, the nozzle 81 of the paint spraying component 8 and three containers respectively filled with different anti-corrosion paints are connected through a pipeline. The anti-corrosion paints can be Bellzona 8411, Bellzona 3412 No. 1 and Bellzona 3412 No. 2 (Belzona is a British company based on the chemical industry. Bellzona 8411, Bellzona 3412 No. 1 and Bellzona 3412 No. 2 are three different types of anti-corrosion paint products produced by the company);During operation, the No. 1 half rings 110 of the two connecting components 1 are respectively sleeved on the outer circumference of the pipes on both sides of the flange, and then the two No. 1 half rings 110 are fixed, and the positions of the two groups of connecting components 1 are adjusted so that the flange is located in the middle position of the two groups of connecting components 1, and the No. 1 electric telescopic rod 2 is controlled to extend in the direction close to the pipe until the No. 1 electric telescopic rod 2 is in close contact with the pipe, and the action of fixing the device is completed, and then the motor 10 is controlled to start, and the motor 10 drives the main gear 11 to rotate, and the main gear 11 drives the No. 2 half ring 4 to rotate through the No. 1 half gear 9, and the No. 2 half ring 4 rotates, driving the long rod 5 and the telescopic block 7 to rotate, and the rotation of the telescopic block 7 drives the paint spraying component 8 to rotate, firstly, the paint spraying component 8 is controlled to spray Belzona 8411 on the pipe, and Belzona 8411 is used as a primer to provide overall preliminary corrosion protection, and the threaded rod 6 is controlled to rotate so that the telescopic block 7 moves left and right relative to the pipe while rotating, and the telescopic block 7 moves, driving the paint spraying component 8 to move synchronously until the paint spraying component 8 moves to the connecting component 1 at the other end, and the pipe and flange are sprayed with Belzona. After spraying Belzona 8411, other heating devices can be used to heat and dry the primer, and then the spray paint assembly 8 equipped with No. 1 Belzona 3412 and the spray paint assembly 8 equipped with No. 2 Belzona 3412 can be started in sequence. The device can also be removed to spray primer on other pipes and flanges. After the primer is naturally dried, the spray paint assembly 8 equipped with No. 1 Belzona 3412 and the spray paint assembly 8 equipped with No. 2 Belzona 3412 can be started in sequence to spray the pipes and flanges with No. 1 Belzona 8411. Belzona 3412 and No. 2 Belzona 3412 are used to form the first coating of Belzona 3412 and the second coating of Belzona 3412 on the pipe and flange respectively. The first coating of Belzona 3412 and the second coating of Belzona 3412 are used to encapsulate the pipe and flange. After the pipe and flange are sprayed with No. 2 Belzona 3412, the spraying of the flange is completed. By setting two sets of connection components 1, the device is fixed on the outer periphery of the pipe and flange before painting, which improves the above problems and is easy to use. ;

[0036] like Figure 5-Figure 7 As shown, it also includes: a plurality of sliders 12 radially slidably installed on the second half ring 4, the number of the sliders 12 is the same as the sum of the number of the long rods 5 and the threaded rods 6, the long rods 5 are fixedly connected to the sliders 12, and the threaded rods 6 are rotatably connected to the sliders 12.

[0037] Specifically, the telescopic plate is telescopically extended to adapt to the position changes of the long rod 5 and the threaded rod 6. Before work, the control slider 12 is controlled to slide relative to the No. 2 half ring 4. The sliding of the slider 12 drives the long rod 5 and the threaded rod 6 to synchronously slide radially relative to the No. 2 half ring 4. The sliding of the slider 12 drives the long rod 5 and the telescopic block 7 to move radially relative to the pipeline. The movement of the telescopic block 7 drives the paint spraying assembly 8 to move, so as to adjust the position between the paint spraying assembly 8 and the pipeline.

[0038] like Figure 5-Figure 7 As shown, it also includes: two No. 1 rack plates 13 installed on the No. 2 half ring 4, the No. 1 rack plates 13 adopt a telescopic structure, the No. 1 rack plates 13 are meshed and connected with the slider 12, and the No. 1 rack plates 13 are used to limit the unidirectional sliding of the slider 12; an L-shaped plate 14 fixedly installed on the No. 1 electric telescopic rod 2; and a contact block 16 fixedly installed at one end of the vertical part of the L-shaped plate 14.

[0039] Specifically, the No. 1 rack plate 13 limits the sliding block 12 to slide only in the direction close to the center of the No. 2 semi-ring 4, and the initial state of the sliding block 12 is located within the moving range of the L-shaped plate 14; in the process of controlling the No. 1 electric telescopic rod 2 to extend to fix the connecting component 1, the extension of the No. 1 telescopic rod drives the L-shaped plate 14 to slide radially relative to the No. 2 semi-ring 4, and the L-shaped plate 14 moves in the direction close to the center of the No. 2 semi-ring 4. The movement of the L-shaped plate 14 drives the sliding block 12 to move synchronously through the contact block 16. The movement of the sliding block 12 drives the long rod 5 and the threaded rod 6 to move synchronously in the direction close to the center of the No. 2 semi-ring 4, so that the movement of the long rod 5 drives the paint spraying component 8 on the telescopic block 7 to move in the direction close to the pipe, so as to realize that for pipes of different sizes, the distance between the paint spraying component 8 and the outer wall of the pipe can be automatically adjusted.

[0040] like Figure 5-Figure 7 As shown, it also includes: a No. 1 folding rod 17 rotatably installed on the two No. 1 rack plates 13; a No. 1 spring 18 installed on the No. 1 rack plate 13 and the No. 2 half ring 4, and the No. 1 rack plate 13 is slidably connected with the No. 2 half ring 4; and a No. 2 spring 19 installed on the slider 12 and the No. 2 half ring 4.

[0041] Specifically, after the painting is finished, the second semi-ring 4 is controlled to rotate to the initial state. At this time, the slider 12 is within the moving range of the L-shaped plate 14, and then the No. 1 electric telescopic rod 2 is controlled to retract. The contraction of the No. 1 electric telescopic rod 2 drives the L-shaped plate 14 to move in the direction away from the center of the No. 2 semi-ring 4. During the movement, the L-shaped plate 14 contacts the No. 1 folding rod 17 through the contact block 16, and pushes the middle part of the No. 1 folding rod 17 to move upward. Since the two ends of the folding rod slide with the No. 2 semi-ring 4, the two ends of the folding rod expand to both sides, driving the No. 1 rack plate 13 to move in the direction away from the slider 12 until the rack plate is no longer in contact with the slider 12. At this time, the slider 12 moves upward to the initial state under the action of the elastic force of the No. 2 spring 19, and the movement of the slider 12 brings the long rod 5 and the threaded rod 6 to move synchronously. The movement of the long rod 5 causes the telescopic block 7 and the painting assembly 8 to return to their original positions, that is, the No. 1 electric telescopic rod 2 is contracted while the position of the painting assembly 8 is restored.

[0042] like Figure 5-Figure 7 As shown, it also includes a round block 15 rotatably mounted on the slider 12 containing the threaded rod 6, the round block 15 is fixedly connected to the threaded rod 6, a plurality of protrusions 20 are installed on the round block 15, and a second folding rod 21 is detachably installed between the three telescopic blocks 7.

[0043] Specifically, in the initial state, only the contact block 16 corresponding to the slider 12 containing the threaded rod 6 is in contact with the round block 15. During the movement, the round block 15 is pushed to move in the radial direction to adjust the position of the threaded rod 6. By setting the protrusion 20, when the second half ring 4 rotates, the round block 15 rotates synchronously around the pipe. When the round block 15 rotates, it contacts the contact block 16 through the protrusion 20. The round block 15 rotates by itself under the push of the contact block 16. The self-rotation of the round block 15 will cause the threaded rod 6 to rotate. The rotation of the threaded rod 6 drives the telescopic block 7 and the paint spraying assembly 8 to slide left and right on the threaded rod 6 relative to the pipe. The telescopic block 7 connected to the threaded rod 6 drives the adjacent telescopic block 7 to move synchronously through the second folding rod 21. Since there is only one round block 15 and the contact block 16 in contact with it, the threaded rod 6 can produce a self-rotation after rotating around the pipe once, so that the paint spraying assembly 8 can automatically move left and right relative to the pipe every time it rotates once.

[0044] like Figure 4 and Figure 8 As shown, the paint spraying assembly 8 also includes two No. 2 telescopic rods 82 fixedly mounted on the telescopic block 7 , a rotating rod 83 rotatably mounted on the movable end of the No. 2 telescopic rod 82 , and the spray head 81 is mounted on the rotating rod 83 .

[0045] like Figure 4 and Figure 8As shown, the paint spraying assembly 8 also includes: a No. 2 gear 84 fixedly mounted on the rotating rod 83; a No. 2 rack plate 85 and a No. 3 rack plate 86 mounted on the No. 2 telescopic rod 82, and the No. 2 rack plate 85 and the No. 3 rack plate 86 are used to drive the No. 2 gear 84 to rotate.

[0046] Specifically, in Figure 8 In the figure, it is assumed that the second rack plate 85 and the third rack plate 86 are located on the left and right sides of the second telescopic rod 82, and the second rack plate 85 and the third rack plate 86 can be extended and retracted relative to the second telescopic rod 82. The second telescopic rod 82 is electrically controlled. Since the flange is equipped with a screw and a nut, the screw and the nut are parallel to the pipe, and the direction of the nozzle 81 is perpendicular to the surface of the pipe, during the painting process, there is a situation where the two ends of the screw and the nut are not sprayed in place. When the paint spraying assembly 8 moves to both sides of the flange, the second rack plate 85 or the third rack plate 86 is controlled to extend left and right to approach the second gear 84, and then the second telescopic rod 82 is controlled to extend. The extension of the No. 2 telescopic rod 82 drives the rotating rod 83 and the nozzle 81 toward the direction of the pipeline. The movement of the rotating rod 83 drives the synchronous movement of the No. 2 gear 85. During the movement of the No. 2 gear 85, it engages with the No. 2 rack plate 85 or the No. 3 rack plate 86, so that the No. 2 gear 84 rotates. The rotation of the No. 2 gear 84 can drive the rotating rod 83 to rotate, so that the direction of the nozzle 81 is parallel to the pipeline. The No. 3 rack plate 86 and the No. 2 rack plate 85 are arranged on both sides of the No. 2 gear 84. Different rack plates are extended to make the rotation direction of the nozzle 81 different, until the nozzle 81 can spray paint on both ends of the screw and the nut, thereby improving the above-mentioned problem.

[0047] like Figure 4 and Figure 8 As shown, it also includes a telescopic shell 22 installed on the telescopic block 7, and the telescopic shell 22 is provided with a hole for the paint spraying assembly 8 to extend out, and a cover plate 23 is rotatably installed on the hole.

[0048] Specifically, by providing the telescopic shell 22 and the cover plate 23, the problem that one of the paint spraying components 8 sprays paint on the spray head 81 of other paint spraying components 8 or the paint on the pipe and flange drips onto the spray head 81 when working is avoided.

[0049] like Figure 2 , Fig. 9 and Fig.10 As shown, it also includes: a third half ring 24 fixedly mounted on the second half ring 4; a line 25 mounted on the third half ring 24; a plurality of cylinders 26 rotatably mounted on the line 25; a covering skin 27 mounted on the cylinder 26, the covering skin 27 is wound on the plurality of cylinders 26, and the other end of the covering skin 27 is connected to the telescopic block 7.

[0050] Specifically, while the No. 2 semi-ring 4 rotates, the No. 3 semi-ring 24 rotates synchronously. The rotation of the No. 3 semi-ring 24 drives the covering leather 27 to rotate. The other end of the covering leather 27 is connected to the telescopic block 7. The covering leather 27 is located between the paint spraying assembly 8 and the long rod 5 to avoid the problem that the paint on the pipeline drips onto the long rod 5 and the threaded rod 6 during the painting process, affecting the normal movement of the telescopic block 7. When the telescopic block 7 moves left and right relative to the pipeline, the cylinder 26 is controlled to rotate, and the covering leather 27 can be pulled to expand or contract.

[0051] Embodiment 2, as Figure 2 , Fig. 9 and Fig.10 As shown, compared with Example 1, another embodiment of the present invention is: it also includes a third telescopic rod 28 slidably mounted on the L-shaped plate 14, the contact block 16 is slidably connected to the L-shaped plate 14, and the third telescopic rod 28 is used to drive the contact block 16 to slide relative to the L-shaped plate 14.

[0052] Specifically, when the rotating rod 83 drives the spray head 81 to rotate, the No. 3 telescopic rod 28 is controlled to extend, driving the contact block 16 to move in a direction away from the center of the No. 2 semi-ring 4, so that during the rotation of the circular block 15, the protrusion 20 on the circular block 15 is no longer in contact with the contact block 16, so that when the spray head 81 is facing the two ends of the screw and the nut, the paint spraying assembly 8 only rotates but does not move, thereby ensuring the painting effect.

[0053] Working principle: before work, the nozzle 81 of the paint spraying assembly 8 and three containers containing paint are connected through pipes. During work, the No. 1 half rings 110 of the two connecting assemblies 1 are respectively put on the outer periphery of the pipes on both sides of the flange, and then the two No. 1 half rings 110 are fixed, and the positions of the two sets of connecting assemblies 1 are adjusted so that the flange is located in the middle position of the two sets of connecting assemblies 1. The No. 1 electric telescopic rod 2 is controlled to extend in the direction close to the pipe until the No. 1 electric telescopic rod 2 is in close contact with the pipe, that is, the action of fixing the device is completed. Then the motor 10 is controlled to start, and the motor 10 drives the main gear 11 to rotate. The main gear 11 drives the No. 2 half ring 4 to rotate through the No. 1 half gear 9. The No. 2 half ring 4 rotates, driving the long rod 5 and the telescopic block 7 to rotate. The rotation of the telescopic block 7 drives the paint spraying assembly 8 to rotate. First, the paint spraying assembly 8 is controlled to spray Bellzona 8411 onto the pipe. 8411 is used as a primer to provide overall corrosion protection. The threaded rod 6 is controlled to rotate so that the telescopic block 7 moves left and right relative to the pipe while rotating. The telescopic block 7 moves, driving the paint spraying assembly 8 to rotate synchronously. Move until the painting assembly 8 moves to the connection assembly 1 at the other end, thus completing the spraying of the pipe and flange with Belzona 8411. After spraying Belzona 8411, other heating devices can be used to heat and dry the primer, and then the painting assembly 8 with No. 1 Belzona 3412 and the painting assembly 8 with No. 2 Belzona 3412 can be started in sequence. The device can also be removed to spray primer on other pipes and flanges. After the primer is naturally dried, the painting assembly with No. 1 Belzona 3412 can be started in sequence. The painting assembly 8 with 412 and the painting assembly 8 equipped with No. 2 Belzona 3412 work to spray the pipe and flange with No. 1 Belzona 3412 and No. 2 Belzona 3412 to form the first coating of Belzona 3412 and the second coating of Belzona 3412 on the pipe and flange respectively. The first coating of Belzona 3412 and the second coating of Belzona 3412 are used to encapsulate the pipe and flange. After the pipe and flange are sprayed with No. 2 Belzona 3412, the spraying of the flange is completed.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flange spraying device, comprising two sets of connection components (1), wherein the connection components (1) comprise two rotatably connected No. 1 half rings (110), and further comprising: A plurality of No. 1 electric telescopic rods (2) fixedly mounted on the inner wall of the No. 1 half ring (110); A plurality of connection blocks (3) fixedly mounted on the first half ring (110); Two No. 2 half rings (4) rotatably mounted on the plurality of connecting blocks (3); A plurality of long rods (5) mounted on the second half ring (4); Rotating the threaded rod (6) mounted on the second half ring (4); Three telescopic blocks (7) slidably mounted on the long rod (5); A paint spraying assembly (8) mounted on the telescopic block (7), the paint spraying assembly (8) comprising a spray head (81); A first half gear (9) fixedly mounted on the outer wall of the second half ring (4); a motor (10) fixedly mounted on the first half ring (110), the motor (10) being connected to a main gear (11), and the motor (10) driving the main gear (11) to rotate can drive the first half gear (9) to rotate; a plurality of sliders (12) radially slidably mounted on the second half ring (4), the number of the sliders (12) being the same as the sum of the number of the long rods (5) and the threaded rods (6), the long rods (5) being fixedly connected to the sliders (12), and the threaded rods (6) being rotatably connected to the sliders (12); two No. 1 rack plates (13) mounted on the No. 2 half ring (4), the No. 1 rack plates (13) being of a telescopic structure, the No. 1 rack plates (13) being meshingly connected with the slider (12), the No. 1 rack plates (13) being used to limit the one-way sliding of the slider (12); An L-shaped plate (14) fixedly mounted on the first electric telescopic rod (2); A contact block (16) is fixedly mounted on one end of the vertical portion of the L-shaped plate (14).

2. A flange spraying device according to claim 1, characterized in that: Also includes: Rotating a No. 1 folding rod (17) mounted on the two No. 1 rack plates (13); A first spring (18) mounted on the first rack plate (13) and the second half ring (4), wherein the first rack plate (13) and the second half ring (4) are slidably connected; A second spring (19) mounted on the slider (12) and the second half ring (4).

3. A flange spraying device according to claim 2, characterized in that: It also includes a round block (15) rotatably mounted on the slider (12) containing the threaded rod (6), the round block (15) being fixedly connected to the threaded rod (6), a plurality of protrusions (20) being mounted on the round block (15), and a second folding rod (21) being detachably mounted between the three telescopic blocks (7).

4. A flange spraying device according to claim 3, characterized in that: The paint spraying assembly (8) further comprises two second telescopic rods (82) fixedly mounted on the telescopic block (7), a rotating rod (83) rotatably mounted on the movable end of the second telescopic rod (82), and the spray head (81) is mounted on the rotating rod (83).

5. A flange spraying device according to claim 4, characterized in that: The paint spraying assembly (8) further comprises: A second gear (84) fixedly mounted on the rotating rod (83); A No. 2 rack plate (85) and a No. 3 rack plate (86) are mounted on the No. 2 telescopic rod (82), and the No. 2 rack plate (85) and the No. 3 rack plate (86) are used to drive the No. 2 gear (84) to rotate.

6. A flange spraying device according to claim 5, characterized in that: It also comprises a telescopic shell (22) mounted on the telescopic block (7), the telescopic shell (22) being provided with a hole for the paint spraying assembly (8) to extend out, and a cover plate (23) being rotatably mounted on the hole.

7. A flange spraying device according to claim 6, characterized in that: Also includes: A third half ring (24) fixedly mounted on the second half ring (4); A line (25) mounted on the third half ring (24); A plurality of cylinders (26) rotatably mounted on the line (25); A covering skin (27) is mounted on the cylinder (26), the covering skin (27) is wound around a plurality of the cylinders (26), and the other end of the covering skin (27) is connected to the telescopic block (7).

8. A flange spraying device according to claim 7, characterized in that: It also comprises a third telescopic rod (28) slidably mounted on the L-shaped plate (14), the contact block (16) being slidably connected to the L-shaped plate (14), and the third telescopic rod (28) being used to drive the contact block (16) to slide relative to the L-shaped plate (14).

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