A fire hose surface painting apparatus

Abstract

The application discloses a fire-fighting pipeline surface spraying equipment and relates to the technical field of pipeline spraying. The application comprises conveying tables, the number of the conveying tables is two, the two conveying tables are placed in left-right arrangement, the top of each conveying table is provided with a semicircular groove concave downward, a mounting plate is inserted into the inside of the conveying table, the inside of the conveying table is provided with a conveying rotating assembly in left-right arrangement through the mounting plate, and the conveying rotating assembly comprises a mounting column. The application can convey the pipeline while rotating the pipeline, realizes the rotary spraying of the pipeline surface, improves the uniformity of paint spraying, is suitable for long fire-fighting pipelines, can synchronously adjust the inclination angle of the driving wheel while driving the driving wheel to synchronously rotate through a single motor, reduces the cost, ensures the consistency of the rotation speed of the driving wheel, further improves the stability of the pipeline conveying and rotating, and slows down the abrasion of the driving wheel.

Description

Technical Field

[0001] This invention relates to the field of pipeline spraying technology, and more specifically to a fire-fighting pipeline surface spraying equipment. Background Technology

[0002] Fire protection pipelines refer to pipeline materials used in fire protection to connect fire protection equipment and materials and transport fire extinguishing water, gas or other media. In order to serve as identification and to improve the service life of the pipelines, the surface of fire protection pipelines is painted.

[0003] For example, Chinese invention patent CN111558482B discloses a fire pipe painting device. The device can prevent the fire pipe from tilting inside the pipe through the support device, and the brush can clean the surface of the fire pipe so that the surface of the fire pipe can be painted smoothly. The multiple paint nozzles are arranged in a circle and have two rows in front and behind, which can make the fire pipe paint more evenly.

[0004] However, considering the aforementioned patents and existing technologies, current fire-fighting pipeline surface spraying equipment still has the following shortcomings during use:

[0005] 1. In conjunction with the aforementioned patents, existing fire-fighting pipeline surface spraying equipment only drives the pipeline to move horizontally during the painting process, without driving the pipeline to rotate. Although annular spray nozzles are provided, the paint is still sprayed outward from a small opening, which can easily lead to uneven paint application. Furthermore, the multiple spray nozzles increase the risk of clogging. Some pipelines are painted by fixing both ends of the pipeline and moving the entire pipeline while driving it to rotate, thereby achieving rotational painting of the pipeline. However, this method is not suitable for long fire-fighting pipelines.

[0006] 2. In existing technologies, a tilting, rotating drive wheel provides circumferential and radial thrust to the pipe, enabling the pipe to rotate while being transported. To improve coating quality, the relative speed of pipe transport and rotation needs to be adjusted, which requires adjusting the tilt angle of the drive wheel. To ensure consistent tilt angles, the drive wheel needs to deflect synchronously. To achieve synchronous deflection of the drive wheel without affecting its normal rotation, a common approach is to drive each drive wheel with a separate motor. However, driving with a separate motor not only increases costs but also makes it difficult to ensure consistent rotational speeds of the drive wheels. The speed difference between the drive wheels reduces the stability of transporting and rotating the pipe and causes relative movement between the pipe and the drive wheel, accelerating wear on the drive wheel. Summary of the Invention

[0007] The purpose of this invention is to address the problems mentioned above, such as the difficulty in simultaneously transporting and rotating long fire-fighting pipelines during the painting process, which easily leads to uneven painting; and the common practice of using a separate motor to drive the drive wheel when adjusting the synchronous deflection of the drive wheel when using an inclined rotating drive wheel, which not only increases costs but also makes it difficult to ensure the consistency of the drive wheel's rotation speed, reducing the stability of transporting and rotating the pipeline and accelerating the wear of the drive wheel. This invention provides a fire-fighting pipeline surface spraying device.

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A fire-fighting pipeline surface spraying device includes two conveyor platforms arranged side by side. Each conveyor platform has a downwardly recessed semi-circular groove on its top. An installation plate is inserted into the interior of the conveyor platform. Conveying and rotating components are arranged side by side inside the conveyor platform via the installation plate.

[0010] The conveying rotation assembly includes a mounting column, which is rotatably connected to a mounting plate via bearings. A rotating shaft is rotatably connected to the top of the mounting column via bearings. A drive wheel is fixedly installed on the periphery of the rotating shaft and is located between the tops of the mounting column. A groove is provided on the top of the conveying platform, aligned with the drive wheel. The top of the drive wheel extends upward through the groove to the center of the bottom of the semi-circular groove. A first worm shaft is rotatably connected to the inside of the conveying platform to drive the drive wheel to rotate synchronously. A second worm shaft is rotatably connected to the inside of the conveying platform to drive the mounting column to rotate synchronously, thereby driving the drive wheel to deflect synchronously. An elastic ball bearing is installed on the front and rear sides of the semi-circular groove on the top of the conveying platform. The limiting assembly is installed on the top of the conveying platform.

[0011] Furthermore, a pipe is placed in the semi-circular groove at the top of the conveyor platform, and the pipe is limited by an elastic ball bearing and a limiting component. A painting component and a drying component are arranged between the two sides of the conveyor platform, and the drying component is located to the right of the painting component. The pipe moves from left to right, so that the pipe first passes through the painting component for painting during the movement, and then passes through the drying component to dry the paint on the surface.

[0012] Furthermore, the conveying rotation assembly also includes a first gear, which is rotatably connected to the outer side of the middle part of the mounting column via a bearing. The mounting cylinder is fixedly mounted on the top of the first gear, the bevel gear ring is fixedly mounted on the top of the mounting cylinder, the bevel gear is fixedly mounted on one side of the rotating shaft, and the bevel gear and the bevel gear ring mesh with each other. The second gear is fixedly mounted on the outer periphery of the bottom of the mounting column, and the second gear is located on the lower side of the mounting plate.

[0013] Furthermore, a support plate is fixedly installed on the outer periphery of the upper side of the limiting rotation connection between the mounting column and the mounting plate. A groove is opened on the top of the mounting plate to allow the support plate to sink. A rolling ring is placed between the bottom end of the support plate and the mounting plate in the groove to limit the movement.

[0014] Furthermore, the first worm shaft inside the conveyor table is located in front of the first gear, and the worm shaft and the front side of the first gear are aligned and meshed with the first gear. The second worm shaft inside the conveyor table is located in front of the second gear, and the worm shaft and the front side of the second gear are aligned and meshed with the second gear. The worms meshing with the front side of the first gear are connected by a coupling to form the first worm shaft, and the worms meshing with the front side of the second gear are also connected by a coupling to form the second worm shaft.

[0015] Furthermore, sealing plates are fixedly installed at both ends of the conveyor table, and the worm shaft one and worm shaft two are connected between the sealing plates on the left and right sides by bearing seats for limited rotation, and the sealing plates can limit the left and right ends of the mounting plate after installation.

[0016] Furthermore, a drive shaft is connected between the worm shafts inside the left and right conveyor platforms via a coupling, and a drive shaft is connected between the worm shafts inside the left and right conveyor platforms via a coupling.

[0017] Furthermore, a pulley is fixedly installed on the outer periphery of the middle part of the drive shaft, which facilitates the rotation of the drive shaft by installing a motor in conjunction with the belt.

[0018] Furthermore, a hexagonal shaft is welded to the middle of the second drive shaft, which facilitates the rotation of the second drive shaft by using a wrench.

[0019] Furthermore, the limiting component includes a mounting arch, which is fixedly installed on the top of the conveyor table in a left-right arrangement. The connecting column has threads on its outer periphery and is fixedly installed on the front and rear sides of the top of the mounting arch by nuts. The position of the connecting column on the mounting arch and its inward extension length can be adjusted by the nuts. The second elastic ball is installed on one end of the inner side of the connecting column.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention, through the design of the internal conveying rotating component of the conveying table, when the inclined drive wheel is driven to rotate, in conjunction with the elastic ball bearing and the limiting component to limit the pipe, enables the pipe to rotate while being conveyed to the right, thereby realizing the rotational spraying of the pipe surface, improving the uniformity of the paint spraying, and is also applicable to long fire-fighting pipes.

[0022] 2. This invention, through the design of the conveying and rotating component, drives the drive wheels to rotate synchronously by rotating the first worm shaft, thereby ensuring the consistency of the drive wheel rotation speed, improving the stability of pipeline conveying and rotation, avoiding relative movement between the pipeline and the drive wheels, reducing wear on the drive wheels, and simultaneously enabling synchronous deflection of the drive wheels by rotating the second worm shaft without individually driving each drive wheel with a motor, thereby uniformly adjusting the tilt angle of the drive wheels, achieving adjustment of the relative speed of pipeline conveying and rotation, ensuring coating quality while reducing costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a three-dimensional structural diagram of the painting assembly and drying assembly of the present invention;

[0026] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of a single conveyor table of the present invention;

[0028] Figure 6 This is an exploded view of the three-dimensional structure of a single conveyor platform of the present invention;

[0029] Figure 7 This is a cross-sectional three-dimensional structural diagram of a single conveyor platform of the present invention. Figure 1 ;

[0030] Figure 8 This is a cross-sectional three-dimensional structural diagram of a single conveyor platform of the present invention. Figure 2 ;

[0031] Figure 9 This is a three-dimensional structural diagram of the mounting plate and conveying rotation assembly of the present invention;

[0032] Figure 10 The explosion of the three-dimensional structure of the mounting plate and conveying rotating assembly of the present invention Figure 1 ;

[0033] Figure 11 The explosion of the three-dimensional structure of the mounting plate and conveying rotating assembly of the present invention Figure 2 ;

[0034] Figure 12 This is a schematic diagram of the three-dimensional structure of the conveying and rotating component of the present invention. Figure 1 ;

[0035] Figure 13 This is a schematic diagram of the three-dimensional structure of the conveying and rotating component of the present invention. Figure 2 ;

[0036] Figure 14 This is an exploded view of the three-dimensional structure of the conveying and rotating component of the present invention;

[0037] Figure 15 This is a partial three-dimensional structural diagram of the conveying and rotating component of the present invention;

[0038] Figure 16 This is an exploded view of a partial three-dimensional structure of the conveying and rotating component of the present invention;

[0039] Figure 17 This is a schematic diagram of the three-dimensional connection structure of the left and right worm shafts one and two of the present invention;

[0040] Figure 18 This is a three-dimensional structural diagram of drive shaft one and drive shaft two of the present invention;

[0041] Figure 19 This is a three-dimensional structural diagram of the limiting component of the present invention;

[0042] Figure 20 This is a partial cross-sectional three-dimensional structural schematic diagram of the connecting column of the present invention.

[0043] Reference numerals: 1. Conveyor table; 101. Semicircular groove; 2. Mounting plate; 3. Conveying rotation assembly; 301. Mounting column; 302. Rotating shaft; 303. Drive wheel; 304. Gear one; 305. Mounting cylinder; 306. Bevel gear ring; 307. Bevel gear; 308. Gear two; 4. Worm shaft one; 5. Worm shaft two; 6. Elastic ball one; 7. Limiting assembly; 701. Mounting arch; 702. Connecting column; 703. Elastic ball two; 8. Pipe; 9. Painting assembly; 10. Drying assembly; 11. Support plate; 12. Rolling ring; 13. Sealing plate; 14. Drive shaft one; 1401. Pulley; 15. Drive shaft two; 1501. Hexagonal shaft. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0045] A preferred embodiment of the fire-fighting pipeline surface spraying equipment according to the present invention will be described in detail below, such as Figures 1-8As shown, a fire-fighting pipeline surface spraying equipment includes a conveyor platform 1. There are two conveyor platforms 1 arranged side by side. The top of each conveyor platform 1 is provided with a downwardly recessed semi-circular groove 101. The mounting plate 2 is inserted into the interior of the conveyor platform 1. The interior of the conveyor platform 1 is provided with conveying and rotating components 3 arranged side by side through the mounting plate 2.

[0046] The conveying rotating assembly 3 includes a mounting column 301, which is rotatably connected to the mounting plate 2 via bearings. A rotating shaft 302 is rotatably connected to the top of the mounting column 301 via bearings. A drive wheel 303 is fixedly mounted on the periphery of the rotating shaft 302, and the drive wheel 303 is located between the tops of the mounting column 301. A groove is provided on the top of the conveying table 1 at the position opposite to the drive wheel 303. The top of the drive wheel 303 extends upward through the groove to the center of the bottom of the semi-circular groove 101. (It should be noted that the outer ring of the drive wheel 303 is made of rubber, so when the semi-circular groove 101 is in the center, the drive wheel 303 will not be able to rotate.) After the pipe 8 is placed in the circular groove 101, the center of the bottom of the pipe 8 can compress the drive wheel 303 downward, so that the drive wheel 303 and the pipe 8 can obtain better friction. The worm shaft 4 is rotatably connected to the inside of the conveyor table 1 to drive the drive wheel 303 to rotate synchronously. The worm shaft 5 is rotatably connected to the inside of the conveyor table 1 to drive the mounting column 301 to rotate synchronously, thereby driving the drive wheel 303 to deflect synchronously. The elastic ball bearing 6 is installed on the front and rear sides of the semi-circular groove 101 at the top of the conveyor table 1. The limiting component 7 is installed at the top of the conveyor table 1.

[0047] A pipe 8 is placed in the semi-circular groove 101 at the top of the conveyor table 1, and is limited by an elastic ball bearing 6 and a limiting component 7. A painting component 9 and a drying component 10 are arranged between the two conveyor tables 1, with the drying component 10 located to the right of the painting component 9. The pipe 8 moves from left to right (as shown in the image). Figure 1 As shown by the middle arrow, the pipe 8 is first sprayed by the painting component 9 during the movement, and then dried by the drying component 10.

[0048] During spraying, the pipe 8 is first placed in the semi-circular groove 101 at the top of the left conveyor table 1. The pipe 8 is then limited by the elastic ball bearing 6 and the limiting component 7 in the semi-circular groove 101. Then, the worm shaft 5 drives the mounting column 301 to rotate synchronously, thereby causing the drive wheel 303 to deflect synchronously and maintain the same tilt angle. Then, the worm shaft 4 drives the drive wheel 303 to rotate synchronously. During the rotation of the tilted drive wheel 303, it can provide axial and circumferential pushing force to the pipe 8, thereby conveying the pipe 8 to the right while also allowing the pipe 8 to rotate.

[0049] During the process of conveying and rotating the pipe 8 to the right, it will first pass through the painting component 9, which works in conjunction with the rightward conveying and rotation of the pipe 8 to achieve uniform painting. After the painting is completed, it will be quickly dried by the drying component 10. After drying, the pipe 8 will be conveyed to the right to the semi-circular groove 101 at the top of the right conveyor table 1. After the painting is completed, it will finally be taken out from the right side of the right conveyor table 1.

[0050] like Figures 12-16 As shown, the conveying rotation assembly 3 also includes a first gear 304, which is rotatably connected to the outer side of the middle part of the mounting column 301 via a bearing. A mounting cylinder 305 is fixedly mounted on the top of the first gear 304, a bevel gear ring 306 is fixedly mounted on the top of the mounting cylinder 305, a bevel gear 307 is fixedly mounted on one side of the rotating shaft 302, and the bevel gear 307 meshes with the bevel gear ring 306. A second gear 308 is fixedly mounted on the outer periphery of the bottom of the mounting column 301, and is located on the lower side of the mounting plate 2. Therefore, when the first gear 304 rotates, it can drive the bevel gear ring 306 to rotate through the mounting cylinder 305. The meshing of the bevel gear ring 306 with the bevel gear 307 drives the bevel gear 307 and the rotating shaft 302 to rotate, thereby driving the drive wheel 303 to rotate. When the second gear 308 rotates, it can drive the mounting column 301 to rotate, thereby causing the mounting column 301 to deflect the drive wheel 303.

[0051] Furthermore, such as Figures 10-11 , Figure 13 As shown, a support plate 11 is fixedly installed on the upper periphery of the connection between the mounting column 301 and the mounting plate 2. A groove is formed on the top of the mounting plate 2 to allow the support plate 11 to sink. A rolling ring 12 is placed between the bottom of the support plate 11 and the mounting plate 2 in the groove. Through the design of the rolling ring 12 between the support plate 11 and the top of the mounting plate 2, the downward pressure on the mounting column 301 is supported without affecting its rotation, preventing damage to the bearings between the mounting column 301 and the mounting plate 2, and improving the stability of the mounting column 301's rotation.

[0052] like Figures 7-11As shown, the worm shaft 4 inside the conveyor table 1 is located in front of gear 304, and the worm shaft 4 and the front of gear 304 are meshed with each other at their respective points of alignment. Similarly, the worm shaft 5 inside the conveyor table 1 is located in front of gear 308, and the worm shaft 5 and the front of gear 308 are meshed with each other at their respective points of alignment. Therefore, when the worm shaft 4 rotates, it drives gear 304 to rotate synchronously, which in turn drives the drive wheel 303 to rotate synchronously. When the worm shaft 5 rotates, it drives gear 308 to rotate synchronously, which in turn drives the mounting column 301 and the drive wheel 303 to deflect synchronously. Furthermore, through the worm and gear meshing design, when the worm shaft 4 and the worm shaft 5 are not rotating, gear 304 and gear 308 cannot rotate.

[0053] Furthermore, the worms meshing with the front side of gear 304 are connected by a coupling to form worm shaft 4, and the worms meshing with the front side of gear 308 are also connected by a coupling to form worm shaft 5. The couplings facilitate the assembly of worm shaft 4 and worm shaft 5, while also improving their torsional resistance during rotational transmission.

[0054] like Figures 5-6 As shown, sealing plates 13 are fixedly installed at both ends of the conveyor table 1. Worm shaft 4 and worm shaft 5 are connected by bearing seats between the sealing plates 13 on both sides to achieve a stable rotational connection between worm shaft 4 and worm shaft 5. After the sealing plates 13 are installed, they can limit the left and right ends of the mounting plate 2 to prevent the mounting plate 2 from moving left and right. (It should be noted that, in order to improve the stability of worm shaft 4 and worm shaft 5, each worm of worm shaft 4 and worm shaft 5 can also be independently limited and rotated on the mounting plate 2 by mounting bearing seats.)

[0055] like Figure 4 , Figures 17-18As shown, drive shaft 14 is connected to the worm shaft 4 inside the left and right conveyor platforms 1 via a coupling, and drive shaft 15 is connected to the worm shaft 5 inside the left and right conveyor platforms 1 via a coupling. A pulley 1401 is fixedly installed on the outer periphery of the middle part of drive shaft 14, which facilitates the rotation of drive shaft 14 by a motor and belt. A hexagonal shaft 1501 is welded to the middle of drive shaft 15, which facilitates the rotation of drive shaft 15 by a wrench. This enables the synchronous rotation of drive wheels 303 on the left and right conveyor platforms 1 by a single motor, and also enables synchronous deflection adjustment of drive wheels 303 on the left and right conveyor platforms 1. (It should be noted that when installing the left and right conveyor platforms 1, the distance between the left and right conveyor platforms 1 should be less than half the length of the pipe 8. By using the coupling connection between drive shaft 14 and drive shaft 15, different lengths of drive shaft 14 and drive shaft 15 can be replaced according to the different distances between the left and right conveyor platforms 1.)

[0056] like Figure 5 , Figures 19-20 As shown, the limiting component 7 includes a mounting arch 701, which is fixedly installed on the top of the conveyor table 1 in a left-right arrangement. The connecting column 702 has threads on its outer periphery and is fixedly installed on the front and rear sides of the top of the mounting arch 701 by nuts. The position of the connecting column 702 on the mounting arch 701 and its inward extension length can be adjusted by the nuts. The elastic ball bearing 703 is installed on one end of the inner side of the connecting column 702. By adjusting the position of the connecting column 702 on the mounting arch 701 and its inward extension length, pipes 8 of different diameters can be accommodated. The design of the first elastic ball 6 and the second elastic ball 703 ensures that while the balls can roll and limit the movement of the pipe 8, the pipe 8 can still move and rotate. Simultaneously, the balls can elastically retract, preventing damage to the balls from rigid contact between the end of the pipe 8 and the balls when the end of the pipe 8 passes between the first elastic ball 6 and the second elastic ball 703. This also facilitates the rightward movement of the pipe 8. (It should be added that...) Figure 20 As shown, the principle by which the second elastic ball 703 can roll and elastically retract is as follows: the second elastic ball 703 is fixedly installed on one end of the inner side of the connecting column 702 by an interference fit. After installation, the compression block inside the connecting column 702 is in contact with the ball through a spring-loaded elastic connection. A circular groove is provided on the side of the compression block near the ball to limit and wrap the ball, thereby enabling the ball to roll. When the ball is compressed, it can push the compression block to compress the spring and elastically retract. The principle of the first elastic ball 6 is the same as that of the second elastic ball 703, and it is a common technical means in the prior art, so it is not described in detail.

[0057] The working principle of this invention is:

[0058] When in use, the pipe 8 is first placed in the semi-circular groove 101 at the top of the left conveyor 1, and the pipe 8 is limited by the elastic ball 6 in the semi-circular groove 101 and the elastic ball 703 in the limiting assembly 7.

[0059] Then, the motor drives the drive shaft 14 to rotate via the belt and pulley 1401, and drives the worm shafts 4 on both sides to rotate via the coupling. During the rotation of the worm shaft 4, the meshing of the worm and gear 304 on the worm shaft 4 drives the gear 304 to rotate synchronously. This, in turn, drives the bevel ring 306 to rotate via the mounting sleeve 305. The meshing of the bevel ring 306 and bevel gear 307 drives the rotating shaft 302 and drive wheel 303 to rotate synchronously, thereby generating axial and circumferential pushing forces on the pipe 8, causing the pipe 8 to move to the right and rotate at the same time.

[0060] When the pipe 8 moves to the right to the painting assembly 9, the surface of the pipe 8 is evenly painted in coordination with the rotation of the pipe 8. Then it moves to the right to the drying assembly 10 to dry the paint on the surface. After drying, the pipe 8 is then conveyed to the right to the semi-circular groove 101 at the top of the right conveyor table 1. After the painting is completed, it is finally taken out from the right side of the right conveyor table 1.

[0061] When it is necessary to adjust the relative speed of the pipe 8 moving to the right and rotating, the wrench and the hexagonal shaft 1501 are used to drive the drive shaft 15 to rotate, which in turn drives the worm shafts 5 on both sides to rotate. During the rotation of the worm shafts 5, the meshing between the worm and the gear 308 on the worm shafts 5 can drive the gear 308 to rotate synchronously, which in turn drives the mounting column 301 and the drive wheel 303 to deflect synchronously, thereby adjusting the tilt angle of the drive wheel 303 and ensuring the consistency of the tilt angle of the drive wheel 303.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire-fighting pipeline surface spraying device, characterized in that, include: The conveyor (1) has two conveyor (1) arranged side by side, and the top of each conveyor (1) is provided with a downward-recessed semi-circular groove (101). Mounting plate (2), which is inserted into the interior of conveyor table (1), and conveying rotating components (3) are arranged in the left and right sides of the interior of conveyor table (1) through mounting plate (2). The conveying rotation assembly (3) includes: Mounting post (301), wherein the mounting post (301) is connected to the mounting plate (2) by a bearing for limited rotation; A rotating shaft (302) is rotatably connected to the top of the mounting column (301) via a bearing; The drive wheel (303) is fixedly installed on the periphery of the rotating shaft (302), and the drive wheel (303) is located between the tops of the mounting column (301). A groove is provided at the top of the conveyor table (1) where it is aligned with the drive wheel (303). The top of the drive wheel (303) extends upward through the groove to the center of the bottom of the semi-circular groove (101). Worm shaft 1 (4), the worm shaft 1 (4) is rotatably connected to the inside of the conveyor table (1) and is used to drive the drive wheel (303) to rotate synchronously; Worm shaft two (5) is rotatably connected to the inside of the conveyor table (1) and is used to drive the mounting column (301) to rotate synchronously, thereby driving the drive wheel (303) to deflect synchronously; Elastic ball bearing 1 (6) is installed on the front and rear sides of the semi-circular groove (101) at the top of the conveyor table (1); Limiting component (7) is installed on the top of the conveyor (1).

2. The fire-fighting pipeline surface spraying equipment according to claim 1, characterized in that, The pipe (8) is placed in the semi-circular groove (101) at the top of the conveyor (1), and the pipe (8) is limited by the elastic ball (6) and the limiting component (7). A painting component (9) and a drying component (10) are arranged between the two sides of the conveyor (1), and the drying component (10) is located to the right of the painting component (9). The pipe (8) moves from left to right, so that the pipe (8) is first sprayed by the painting component (9) during the movement, and then the surface paint is dried by the drying component (10).

3. The fire-fighting pipeline surface spraying equipment according to claim 1, characterized in that, The conveying rotation assembly (3) also includes: Gear 1 (304), wherein gear 1 (304) is rotatably connected to the outer side of the middle part of the mounting column (301) by means of bearing limiting; Mounting cylinder (305), which is fixedly mounted on the top end of gear one (304); A bevel gear ring (306) is fixedly installed on the top end of the mounting cylinder (305); A bevel gear (307) is fixedly mounted on one side of a rotating shaft (302), and the bevel gear (307) meshes with a bevel gear ring (306). Gear 2 (308) is fixedly installed on the periphery of the bottom of the mounting column (301) and is located on the lower side of the mounting plate (2).

4. The fire-fighting pipeline surface spraying equipment according to claim 3, characterized in that, A support plate (11) is fixedly installed on the outer periphery of the upper side of the connection between the mounting column (301) and the mounting plate (2). The top of the mounting plate (2) is provided with a groove to allow the support plate (11) to sink. At the groove, a rolling ring (12) is placed between the bottom end of the support plate (11) and the mounting plate (2) for limiting.

5. The fire-fighting pipeline surface spraying equipment according to claim 3, characterized in that, The worm shaft 1 (4) inside the conveyor platform (1) is located in front of the gear 1 (304), and the worm shaft 1 (4) and the gear 1 (304) are meshed with each other at their respective front ends. The worm shaft 2 (5) inside the conveyor platform (1) is located in front of the gear 2 (308), and the worm shaft 2 (5) and the gear 2 (308) are meshed with each other at their respective front ends. The worms meshing in front of the gear 1 (304) are connected by a coupling to form the worm shaft 1 (4), and the worms meshing in front of the gear 2 (308) are also connected by a coupling to form the worm shaft 2 (5).

6. The fire-fighting pipeline surface spraying equipment according to claim 1, characterized in that, The left and right ends of the conveyor table (1) are fixedly installed with sealing plates (13). The first worm shaft (4) and the second worm shaft (5) are connected between the sealing plates (13) on the left and right sides by bearing seats for rotational limitation. After the sealing plates (13) are installed, they can limit the left and right ends of the mounting plate (2).

7. The fire-fighting pipeline surface spraying equipment according to claim 6, characterized in that, The worm shafts (4) inside the conveyor platforms (1) on both sides are connected by a drive shaft (14) through a coupling, and the worm shafts (5) inside the conveyor platforms (1) on both sides are connected by a drive shaft (15) through a coupling.

8. The fire-fighting pipeline surface spraying equipment according to claim 7, characterized in that, A pulley (1401) is fixedly installed on the outer periphery of the middle part of the drive shaft (14), so that the drive shaft (14) can be rotated by installing a motor in conjunction with the belt.

9. The fire-fighting pipeline surface spraying equipment according to claim 7, characterized in that, A hexagonal shaft (1501) is welded to the middle of the second drive shaft (15), which makes it easy to rotate the second drive shaft (15) by using a wrench.

10. The fire-fighting pipeline surface spraying equipment according to claim 1, characterized in that, The limiting component (7) includes: The mounting arch (701) is fixedly installed on the top of the conveyor table (1) in a left-right arrangement; The connecting column (702) has threads on its outer periphery and is fixedly installed on the front and rear sides of the top of the mounting arch (701) by nuts. The position of the connecting column (702) on the mounting arch (701) and its inward extension length can be adjusted by the nuts. Elastic ball bearing 2 (703) is installed on the inner end of the connecting column (702).

Images