An alloy steel pipe anti-corrosion coating spraying device

Abstract

This invention discloses an anti-corrosion coating spraying device for alloy steel pipes, belonging to the field of steel pipe spraying technology. It includes a limiting mounting cylinder, inside which a spraying mechanism is installed. The spraying mechanism includes a lifting component for supporting the workpiece, adjusting its height, and driving its rotation; a spraying component for cooperating with the lifting component to spray the workpiece; and a support component for supporting the spraying component, adjusting its height, and driving the spraying component and the lifting component to move in opposite directions. The lifting component is positioned above the spraying component, and the support component is positioned below the lifting component. Several exhaust fans are arranged in a circular array on the bottom side of the limiting mounting cylinder. Through the cooperation of these multiple structures, the spraying component can perform centered spraying on components of different diameters, thus broadening the applicability of the spraying device.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe spraying technology, specifically relating to a spraying device for anti-corrosion coating of alloy steel pipes. Background Technology

[0002] Alloy steel pipes are widely used in many fields. However, during operation, steel pipes are exposed to complex and ever-changing natural environments for extended periods, inevitably subjecting them to corrosion from various media such as soil, water, and air. The chemical substances, microbial activities, and electrochemical effects contained in these media collectively pose a potential threat to the inner wall of the pipe. Therefore, appropriate spraying equipment is needed to apply an anti-corrosion coating to the inner wall of the steel pipe. Traditional spraying equipment includes a base plate, steel pipe, rotating shaft, drive motor, drive roller, driven roller, drive wheel, driven wheel, synchronous belt, mounting frame, moving push plate, mounting cylinder, conveying pipe, sleeve one, sleeve two, paint spray head and circular groove two, etc. The advantage of this spraying equipment is that it can drive the steel pipe to rotate during the spraying process. However, traditional spraying equipment has a relatively simple spraying structure. When processing steel pipes of different diameters, the spray head cannot be centered and spray evenly, which makes the applicability of the spraying equipment poor and affects the user's experience. It is in urgent need of improvement. Summary of the Invention

[0003] The purpose of this invention is to provide an alloy steel pipe anti-corrosion coating spraying device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an alloy steel pipe anti-corrosion coating spraying device, comprising a limiting installation cylinder, wherein a spraying mechanism is provided inside the limiting installation cylinder, the spraying mechanism comprising a lifting component for supporting the workpiece, adjusting its height, and driving the workpiece to rotate, a spraying component for cooperating with the lifting component to spray the workpiece, and a support component for supporting the spraying component, adjusting its height, and driving the spraying component and the lifting component to move in opposite directions, the lifting component being positioned above the spraying component, the support component being positioned below the lifting component, and a plurality of exhaust fans being arranged in a circular array on the bottom side of the limiting installation cylinder.

[0005] As a further aspect of the present invention: the spraying assembly includes a second limiting disk, a first driver is fixedly connected to the middle of the upper surface of the second limiting disk, a hollow feeding rod is provided at the output end of the first driver, the hollow feeding rod is fixedly connected to the first driver, and a plurality of atomizing nozzles are provided at intervals at the end of the hollow feeding rod away from the first driver.

[0006] As a further embodiment of the present invention: a rotating feeding component is provided above the first driver for rotating and feeding the hollow feeding rod. The rotating feeding component is sealed and rotatably connected to the hollow feeding rod. Several second limiting connecting rods for supporting and fixing the rotating feeding component are fixedly connected to the top of the first driver. Several injection tubes are provided on the top of the rotating feeding component.

[0007] As a further embodiment of the present invention: the lifting assembly includes a first annular limiting plate, a second annular limiting plate is disposed above the first annular limiting plate, a plurality of third height adjusting members are disposed on the upper surface of the first annular limiting plate for supporting and adjusting the height of the second annular limiting plate, an annular liquid storage cylinder is disposed above the first annular limiting plate and rotatably connected to the second annular limiting plate, and the second annular limiting plate is disposed at the bottom of the annular liquid storage cylinder.

[0008] As a further embodiment of the present invention: a driven gear is fixedly connected to the top of the annular liquid storage cylinder, and a plurality of second drivers are fixedly connected to the upper surface of the second annular limiting plate. The output end of the second drivers is fixedly connected to an active gear for cooperating with the driven gear to drive the annular liquid storage cylinder to rotate, and the active gear meshes with the driven gear.

[0009] As a further embodiment of the present invention: the inner wall of the annular liquid storage cylinder is provided with a plurality of pressure relief holes, and the interior of the annular liquid storage cylinder is provided with a plurality of elastic reinforcing plates arranged in an annular array to seal the pressure relief holes, and the elastic reinforcing plates are fixedly connected to the annular liquid storage cylinder.

[0010] As a further embodiment of the present invention: the interior of the annular liquid storage cylinder is filled with a second transmission fluid, and the interior of the annular liquid storage cylinder is slidably connected with a second adjustable piston plate for adjusting the shape of the elastic reinforcing plate in conjunction with the second transmission fluid. The upper surface of the second adjustable piston plate is provided with a plurality of second height adjusting members, and the top of the second height adjusting members is fixedly connected with a plurality of third limiting connecting rods corresponding to the annular liquid storage cylinder. The third limiting connecting rods are fixedly connected to the annular liquid storage cylinder.

[0011] As a further embodiment of the present invention: the support assembly includes a first limiting disc, a first liquid storage cylinder is fixedly connected to the middle of the upper surface of the first limiting disc, a limiting installation tube is fixedly connected to the middle of the bottom end of the first liquid storage cylinder, a first height adjustment component is provided inside the limiting installation tube for supporting and adjusting the height of the second limiting disc, the bottom of the first height adjustment component is fixedly connected to the first liquid storage cylinder, the top of the first height adjustment component is fixedly connected to the second limiting disc, the interior of the first liquid storage cylinder is filled with a first transmission fluid, and a plurality of piston transmission components are arranged in a ring array on the upper surface of the first liquid storage cylinder for cooperating with the first transmission fluid to adjust the height of the first annular limiting plate, the bottom of the piston transmission component is fixedly connected to the first limiting disc, and the top of the piston transmission component is fixedly connected to the first annular limiting plate.

[0012] As a further embodiment of the present invention: the first liquid storage cylinder is internally sealed and slidably connected to a first adjustable piston plate, the first adjustable piston plate is sealed and slidably connected to a limiting installation tube, and a plurality of first limiting connecting rods corresponding to the second limiting disk are arranged in a ring array on the upper surface of the first adjustable piston plate. The top of the first limiting connecting rod is fixedly connected to the second limiting disk, and the bottom of the first limiting connecting rod is fixedly connected to the first adjustable piston plate.

[0013] As a further embodiment of the present invention: the top of the limiting installation cylinder is provided with a number of warning elements at intervals for displaying warning information. The warning elements are fixedly connected to the limiting installation cylinder. Below the warning elements, there is an elastic anti-slip pad for providing anti-slip support to the limiting installation cylinder. The elastic anti-slip pad is located on the lower surface of the limiting installation cylinder and is fixedly connected to the limiting installation cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention has a simple structure and is easy to use. During use, the cooperation of multiple structures enables the spraying assembly to perform centered spraying on components of different diameters, thereby making the application range of the spraying device wider. Secondly, the present invention can drive the atomizing nozzle to rotate and move vertically back and forth at the same time, while driving the workpiece to move in the opposite direction relative to the atomizing nozzle and rotate in the opposite direction. Through the dual reverse movement of the atomizing nozzle and the workpiece, rapid and uniform sweeping and spraying of the inner wall of the workpiece is achieved, which significantly improves the spraying uniformity of the spraying device and is worthy of promotion and use. Attached Figure Description

[0015] Figure 1 A schematic diagram of a spraying device for anti-corrosion coating of alloy steel pipes; Figure 2 This is a schematic diagram of the spraying mechanism in an alloy steel pipe anti-corrosion coating spraying device. Figure 3This is a schematic diagram of the support component in an alloy steel pipe anti-corrosion coating spraying device. Figure 4 This is a schematic diagram of the spraying components in an alloy steel pipe anti-corrosion coating spraying device. Figure 5 A schematic diagram of the lifting component in an alloy steel pipe anti-corrosion coating spraying device; Figure 6 An exploded view of the lifting component in an alloy steel pipe anti-corrosion coating spraying device; In the diagram: 1-Elastic anti-slip pad, 2-Limit mounting cylinder, 3-Spraying mechanism, 4-Warning component, 5-Exhaust fan, 31-Support assembly, 32-Spraying assembly, 33-Lifting assembly, 310-First liquid storage cylinder, 311-First limit disc, 312-First transmission fluid, 313-First adjustable piston plate, 314-First height adjustment component, 315-First limit connecting rod, 316-Piston transmission component, 317-Limit mounting tube, 320-First driver, 321-Second limit disc, 322-Rotary feeder Components: 323-Atomizing nozzle, 324-Hollow conveying rod, 325-Injection pipe, 326-Second limiting connecting rod, 330-First annular limiting plate, 331-Second annular limiting plate, 332-Annular liquid storage cylinder, 333-Driven gear, 334-Pressure relief through hole, 335-Elastic reinforcing plate, 336-Second adjustable piston plate, 337-Third limiting connecting rod, 338-Second height adjusting component, 339-Second transmission fluid, 340-Drive gear, 341-Second driver, 342-Third height adjusting component. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", "linking", and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting.

[0018] Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] Please see Figures 1-6This embodiment provides an alloy steel pipe anti-corrosion coating spraying device, including a limiting installation cylinder 2. The limiting installation cylinder 2 is equipped with a spraying mechanism 3. The spraying mechanism 3 includes a lifting component 33 for supporting the workpiece, adjusting its height, and driving the workpiece to rotate; a spraying component 32 for cooperating with the lifting component 33 to spray the workpiece; and a support component 31 for supporting the spraying component 32, adjusting its height, and driving the spraying component 32 and the lifting component 33 to move in opposite directions. The lifting component 33 is located above the spraying component 32, and the support component 31 is located below the lifting component 33. Several exhaust fans 5 are arranged in a circular array on the bottom side of the limiting installation cylinder 2. The end of the exhaust fan 5 is equipped with a filter screen. During use, the exhaust fans 5 extract the air inside the limiting installation cylinder 2, which can prevent the atomized anti-corrosion liquid from spreading everywhere during the open spraying process.

[0020] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment, to make the use of the spraying assembly 32 more reliable, preferably, the spraying assembly 32 includes a second limiting disk 321. A first driver 320 is fixedly connected to the middle of the upper surface of the second limiting disk 321. The first driver 320 is a servo motor. A hollow feeding rod 324 is provided at the output end of the first driver 320. The hollow feeding rod 324 is fixedly connected to the first driver 320. A plurality of atomizing nozzles 32 are spaced apart at the end of the hollow feeding rod 324 away from the first driver 320. 3. A rotating feeder 322 is provided above the first driver 320 for rotating and feeding the hollow feeder rod 324. The bottom of the hollow feeder rod 324 is provided with several feed holes corresponding to the rotating feeder 322. The rotating feeder 322 is rotatably connected to the hollow feeder rod 324 in a sealed manner. Several second limiting connecting rods 326 are fixedly connected to the top of the first driver 320 for supporting and fixing the rotating feeder 322. Several injection pipes 325 are provided on the top of the rotating feeder 322.

[0021] In another embodiment, to make the use of the spraying assembly 32 more reliable, preferably, the spraying assembly 32 includes a second limiting disk 321. A first driver 320 is fixedly connected to the middle of the upper surface of the second limiting disk 321. The first driver 320 is a pneumatic motor. A hollow feeding rod 324 is provided at the output end of the first driver 320. The hollow feeding rod 324 is fixedly connected to the first driver 320. A plurality of atomizing nozzles 32 are spaced apart at the end of the hollow feeding rod 324 away from the first driver 320. 3. A rotating feeder 322 is provided above the first driver 320 for rotating and feeding the hollow feeder rod 324. The bottom of the hollow feeder rod 324 is provided with several feed holes corresponding to the rotating feeder 322. The rotating feeder 322 is rotatably connected to the hollow feeder rod 324 in a sealed manner. Several second limiting connecting rods 326 are fixedly connected to the top of the first driver 320 for supporting and fixing the rotating feeder 322. Several injection pipes 325 are provided on the top of the rotating feeder 322.

[0022] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 In one embodiment, to make the use of the lifting assembly 33 more reliable, preferably, the lifting assembly 33 includes a first annular limiting plate 330, a second annular limiting plate 331 is disposed above the first annular limiting plate 330, and a plurality of third height adjusting members 342 are disposed on the upper surface of the first annular limiting plate 330 for supporting and adjusting the height of the second annular limiting plate 331. The third height adjusting members 342 are electric telescopic rods. A connecting rod is disposed above the first annular limiting plate 330 and the second annular limiting plate 331. The annular liquid storage cylinder 332 is rotatably connected to the second annular limiting plate 331 at the bottom of the annular liquid storage cylinder 332. A driven gear 333 is fixedly connected to the top of the annular liquid storage cylinder 332. Several second drivers 341 are fixedly connected to the upper surface of the second annular limiting plate 331. The second drivers 341 are servo motors. The output end of the second drivers 341 is fixedly connected to a drive gear 340 for cooperating with the driven gear 333 to drive the annular liquid storage cylinder 332 to rotate. The drive gear 340 meshes with the driven gear 333.

[0023] Please see Figure 6In one embodiment, to enrich the functionality of the lifting component 33, preferably, the inner wall of the annular reservoir 332 is provided with a plurality of pressure relief holes 334. The interior of the annular reservoir 332 is arranged in a circular array with a plurality of elastic reinforcing plates 335 for sealing the pressure relief holes 334. The elastic reinforcing plates 335 are rubber plates and are fixedly connected to the annular reservoir 332. The interior of the annular reservoir 332 is filled with a second transmission fluid 339, which is hydraulic fluid. The annular reservoir 332 is internally sealed and slidably connected to a second adjustable piston plate 336, which is used to adjust the shape of the elastic reinforcing plate 335 in conjunction with the second transmission fluid 339. The upper surface of the second adjustable piston plate 336 is provided with several second height adjustment components 338, which are electric telescopic rods. Several third limiting connecting rods 337 corresponding to the annular reservoir 332 are fixedly connected to the top of the second height adjustment components 338. The third limiting connecting rods 337 are fixedly connected to the annular reservoir 332.

[0024] In another embodiment, to make the use of the lifting assembly 33 more reliable, preferably, the lifting assembly 33 includes a first annular limiting plate 330, a second annular limiting plate 331 is disposed above the first annular limiting plate 330, and a plurality of third height adjusting members 342 are disposed on the upper surface of the first annular limiting plate 330 for supporting and adjusting the height of the second annular limiting plate 331. The third height adjusting members 342 are cylinders. A connection is disposed above the first annular limiting plate 330 to the second annular limiting plate 331. The annular liquid storage cylinder 332 is rotatably connected. The second annular limiting plate 331 is set at the bottom of the annular liquid storage cylinder 332. The driven gear 333 is fixedly connected to the top of the annular liquid storage cylinder 332. Several second drivers 341 are fixedly connected to the upper surface of the second annular limiting plate 331. The second drivers 341 are pneumatic motors. The output end of the second drivers 341 is fixedly connected to a driving gear 340 for cooperating with the driven gear 333 to drive the annular liquid storage cylinder 332 to rotate. The driving gear 340 and the driven gear 333 are meshed and connected.

[0025] In another embodiment, to further enrich the functionality of the lifting component 33, preferably, the inner wall of the annular reservoir 332 is provided with a plurality of pressure relief holes 334. The interior of the annular reservoir 332 is arranged in a circular array with a plurality of elastic reinforcing plates 335 for sealing the pressure relief holes 334. The elastic reinforcing plates 335 are silicone plates and are fixedly connected to the annular reservoir 332. The interior of the annular reservoir 332 is filled with a second transmission fluid 339. The annular liquid storage cylinder 332 is sealed and slidably connected to a second adjustable piston plate 336, which is used to adjust the shape of the elastic reinforcing plate 335 in conjunction with the second transmission fluid 339. The upper surface of the second adjustable piston plate 336 is provided with several second height adjustment components 338, which are cylinders. Several third limiting connecting rods 337 corresponding to the annular liquid storage cylinder 332 are fixedly connected to the top of the second height adjustment component 338. The third limiting connecting rods 337 are fixedly connected to the annular liquid storage cylinder 332.

[0026] Please see Figure 1 , Figure 2 and Figure 3 In one embodiment, to make the use of the support assembly 31 more reliable, preferably, the support assembly 31 includes a first limiting disc 311. A first liquid storage cylinder 310 is fixedly connected to the middle of the upper surface of the first limiting disc 311. A limiting installation tube 317 is fixedly connected to the middle of the bottom end of the first liquid storage cylinder 310. A first height adjusting member 314 is provided inside the limiting installation tube 317 for supporting and adjusting the height of the second limiting disc 321. The first height adjusting member 314 is an electric telescopic rod. The bottom of the first height adjusting member 314 is fixedly connected to the first liquid storage cylinder 310, and the top of the first height adjusting member 314 is fixedly connected to the first limiting disc 321. The two limiting discs 321 are fixedly connected. The interior of the first liquid storage cylinder 310 is filled with the first transmission fluid 312, which is hydraulic oil. The upper surface of the first liquid storage cylinder 310 is arranged in a ring array with several piston transmission components 316, which are used to adjust the height of the first annular limiting plate 330 in conjunction with the first transmission fluid 312. The piston transmission component 316 is a piston hydraulic cylinder, which consists of a cylinder body, a piston rod, and a brake ring located at the top of the cylinder body to prevent the piston rod from disengaging. The bottom of the piston transmission component 316 is fixedly connected to the first limiting disc 311, and the top of the piston transmission component 316 is fixedly connected to the first annular limiting plate 330.

[0027] Please see Figure 2In one embodiment, to enrich the function of the support component 31, preferably, the first liquid storage cylinder 310 is internally sealed and slidably connected to a first adjustable piston plate 313. The first adjustable piston plate 313 is sealed and slidably connected to the limiting mounting tube 317. The upper surface of the first adjustable piston plate 313 is arranged in a ring array with a plurality of first limiting connecting rods 315 corresponding to the second limiting disk 321. The top of the first limiting connecting rod 315 is fixedly connected to the second limiting disk 321, and the bottom of the first limiting connecting rod 315 is fixedly connected to the first adjustable piston plate 313.

[0028] In another embodiment, to make the use of the support assembly 31 more reliable, preferably, the support assembly 31 includes a first limiting disc 311, a first liquid storage cylinder 310 is fixedly connected to the middle of the upper surface of the first limiting disc 311, a limiting installation tube 317 is fixedly connected to the middle of the bottom end of the first liquid storage cylinder 310, and a first height adjusting member 314 is provided inside the limiting installation tube 317 for supporting and adjusting the height of the second limiting disc 321. The first height adjusting member 314 is a cylinder, the bottom of the first height adjusting member 314 is fixedly connected to the first liquid storage cylinder 310, and the top of the first height adjusting member 314 is fixedly connected to the first limiting disc 321. The two limiting discs 321 are fixedly connected. The interior of the first liquid storage cylinder 310 is filled with the first transmission fluid 312, which is water. The upper surface of the first liquid storage cylinder 310 is arranged in a ring array with several piston transmission components 316, which are used to adjust the height of the first annular limiting plate 330 in conjunction with the first transmission fluid 312. The piston transmission component 316 is a piston cylinder. The piston hydraulic cylinder consists of a cylinder body, a piston rod, and a brake ring located at the top of the cylinder body to prevent the piston rod from disengaging. The bottom of the piston transmission component 316 is fixedly connected to the first limiting disc 311, and the top of the piston transmission component 316 is fixedly connected to the first annular limiting plate 330.

[0029] In another embodiment, to enrich the function of the support component 31, preferably, the first liquid storage cylinder 310 is internally sealed and slidably connected to a first adjustable piston plate 313, the first adjustable piston plate 313 is sealed and slidably connected to the limiting mounting tube 317, and the upper surface of the first adjustable piston plate 313 is arranged in a ring array with a plurality of first limiting connecting rods 315 corresponding to the second limiting disk 321. The top of the first limiting connecting rod 315 is fixedly connected to the second limiting disk 321, and the bottom of the first limiting connecting rod 315 is fixedly connected to the first adjustable piston plate 313.

[0030] Please see Figure 1In one embodiment, to enrich the functions of the spraying device, preferably, the top of the limiting installation cylinder 2 is provided with a plurality of warning elements 4 for displaying warning information. The warning elements 4 are handwritten fluorescent boards. The warning elements 4 are fixedly connected to the limiting installation cylinder 2. Below the warning elements 4, there is an elastic anti-slip pad 1 for providing anti-slip support to the limiting installation cylinder 2. The elastic anti-slip pad 1 is a rubber plate. The elastic anti-slip pad 1 is set on the lower surface of the limiting installation cylinder 2 and is fixedly connected to the limiting installation cylinder 2.

[0031] In another embodiment, to enrich the functions of the spraying device, preferably, the top of the limiting mounting cylinder 2 is provided with a plurality of warning elements 4 for displaying warning information. The warning elements 4 are LCD screens and are fixedly connected to the limiting mounting cylinder 2. Below the warning elements 4, there is an elastic anti-slip pad 1 for providing anti-slip support to the limiting mounting cylinder 2. The elastic anti-slip pad 1 is a silicone plate and is provided on the lower surface of the limiting mounting cylinder 2. The elastic anti-slip pad 1 is fixedly connected to the limiting mounting cylinder 2.

[0032] The working principle and usage process of this invention: Before use, the injection pipe 325 is connected to the material supply source. The material supply source is existing technology. During use, the third height adjustment component 342 is extended to move the annular liquid storage cylinder 332 upward. Then, the user inserts the alloy steel pipe to be processed directly into the annular liquid storage cylinder 332. At this time, the second height adjustment component 338 is extended. The extension of the second height adjustment component 338 causes the second adjustable piston plate 336 to move downward to squeeze the second transmission fluid 339. At this time, the elastic reinforcing plate 335 expands to lock and fix the steel pipe. At this time, the atomizing nozzle 323 is located in the middle of the steel pipe as the spraying structure. Thus, when the user processes different types of steel pipes, the spraying structure is always located in the middle of the steel pipe. Then, the third height adjustment component 342 is contracted to reset the annular liquid storage cylinder 332, which facilitates the user's installation and disassembly of the workpiece. Then, the atomizing nozzle 323 is controlled to work, and atomized spraying is performed through the atomizing nozzle 323. During the spraying process, the first driver 320 drives the atomizing nozzle 323 to rotate, thereby enabling the atomizing nozzle 323 to spray the inner wall of the steel pipe in all directions of 360°. At the same time, the second driver 341 drives the annular liquid storage cylinder 332 to rotate in the opposite direction to the atomizing nozzle 323. At this time, the steel pipe and the atomizing nozzle 323 rotate in opposite directions. The opposite rotation of the steel pipe and the atomizing nozzle 323 enables rapid sweeping and spraying of the inside of the steel pipe to improve the uniformity of the spraying. Secondly, the first height adjustment component 314 is continuously extended and retracted. At this time, the atomizing nozzle 323 moves vertically back and forth. The first adjustable piston plate 313 moves up and down accordingly following the extension and retraction of the first height adjustment component 314. At the same time, the first transmission fluid 312 drives the piston transmission component 316 to retract and extend accordingly under the driving action of the first adjustable piston plate 313, thereby causing the lifting component 33 to move down and up accordingly. This causes the steel pipe and the atomizing nozzle 323 to move in opposite directions in the vertical direction. Through the opposite movement of the two, not only can the all-round spraying of the inner wall of the steel pipe be achieved, but the spraying uniformity can also be significantly improved. Thus, through the coordinated movement of the steel pipe and the atomizing nozzle 323 in opposite directions, rapid and uniform spraying of the steel pipe is achieved, significantly improving the quality of the anti-corrosion spraying of the steel pipe. This allows the spraying component 32 to perform centered spraying on components of different diameters, thereby broadening the applicability of the spraying device. Secondly, the invention can drive the atomizing nozzle 323 to rotate while moving vertically back and forth. At the same time, it drives the workpiece to move in the opposite direction relative to the atomizing nozzle 323 and rotate in the opposite direction. Through the dual opposite movement of the atomizing nozzle 323 and the workpiece, rapid and uniform sweeping and spraying of the inner wall of the workpiece is achieved, significantly improving the spraying uniformity of the spraying device. In addition, the invention has a simple structure and is easy to use, making it worthy of promotion and application.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spraying device for anti-corrosion coating of alloy steel pipes, comprising a limiting installation cylinder, characterized in that: The limiting mounting cylinder is equipped with a spraying mechanism, which includes a lifting component for supporting the workpiece, adjusting its height, and driving its rotation; a spraying component for spraying the workpiece in conjunction with the lifting component; and a support component for supporting the spraying component, adjusting its height, and driving the spraying component and the lifting component to move in opposite directions. The lifting component is positioned above the spraying component, and the support component is positioned below the lifting component. Several exhaust fans are arranged in a circular array on the bottom side of the limiting mounting cylinder.

2. The alloy steel pipe anti-corrosion coating spraying device according to claim 1, characterized in that: The spraying assembly includes a second limiting disc, a first driver is fixedly connected to the middle of the upper surface of the second limiting disc, a hollow feeding rod is provided at the output end of the first driver, the hollow feeding rod is fixedly connected to the first driver, and a number of atomizing nozzles are provided at intervals at the end of the hollow feeding rod away from the first driver.

3. The alloy steel pipe anti-corrosion coating spraying device according to claim 2, characterized in that: Above the first driver is a rotating feeder for rotating and feeding the hollow feeder rod. The rotating feeder is sealed and rotatably connected to the hollow feeder rod. Several second limiting connecting rods for supporting and fixing the rotating feeder are fixedly connected to the top of the first driver. Several injection tubes are provided on the top of the rotating feeder.

4. The alloy steel pipe anti-corrosion coating spraying device according to claim 3, characterized in that: The lifting assembly includes a first annular limiting plate, a second annular limiting plate above the first annular limiting plate, a plurality of third height adjusting members on the upper surface of the first annular limiting plate for supporting and adjusting the height of the second annular limiting plate, an annular liquid storage cylinder rotatably connected to the second annular limiting plate above the first annular limiting plate, and the second annular limiting plate at the bottom of the annular liquid storage cylinder.

5. The alloy steel pipe anti-corrosion coating spraying device according to claim 4, characterized in that: A driven gear is fixedly connected to the top of the annular liquid storage cylinder, and several second drivers are fixedly connected to the upper surface of the second annular limiting plate. The output end of the second driver is fixedly connected to a driving gear for cooperating with the driven gear to drive the annular liquid storage cylinder to rotate. The driving gear and the driven gear are meshed together.

6. The alloy steel pipe anti-corrosion coating spraying device according to claim 5, characterized in that: The inner wall of the annular liquid storage cylinder is provided with several pressure relief holes, and several elastic reinforcing plates are arranged in annular array inside the annular liquid storage cylinder to seal the pressure relief holes. The elastic reinforcing plates are fixedly connected to the annular liquid storage cylinder.

7. The alloy steel pipe anti-corrosion coating spraying device according to claim 6, characterized in that: The annular reservoir is filled with a second transmission fluid. The annular reservoir is sealed and slidably connected to a second adjustable piston plate, which works with the second transmission fluid to adjust the shape of the elastic reinforcing plate. The upper surface of the second adjustable piston plate is provided with several second height adjustment components. Several third limiting connecting rods corresponding to the annular reservoir are fixedly connected to the top of the second height adjustment components. The third limiting connecting rods are fixedly connected to the annular reservoir.

8. The alloy steel pipe anti-corrosion coating spraying device according to claim 7, characterized in that: The support assembly includes a first limiting disc, a first liquid storage cylinder fixedly connected to the middle of the upper surface of the first limiting disc, a limiting installation tube fixedly connected to the middle of the bottom end of the first liquid storage cylinder, a first height adjusting component provided inside the limiting installation tube for supporting and adjusting the height of the second limiting disc, the bottom of the first height adjusting component fixedly connected to the first liquid storage cylinder, the top of the first height adjusting component fixedly connected to the second limiting disc, the interior of the first liquid storage cylinder filled with a first transmission fluid, and a plurality of piston transmission components arranged in a circular array on the upper surface of the first liquid storage cylinder for adjusting the height of the first annular limiting plate in conjunction with the first transmission fluid, the bottom of the piston transmission components fixedly connected to the first limiting disc, and the top of the piston transmission components fixedly connected to the first annular limiting plate.

9. The alloy steel pipe anti-corrosion coating spraying device according to claim 8, characterized in that: The first liquid storage cylinder has a first adjustable piston plate that is slidably connected to the inside. The first adjustable piston plate is slidably connected to the limiting installation tube. The upper surface of the first adjustable piston plate has a number of first limiting connecting rods arranged in a ring array, which correspond to the second limiting disk. The top of the first limiting connecting rod is fixedly connected to the second limiting disk, and the bottom of the first limiting connecting rod is fixedly connected to the first adjustable piston plate.

10. The alloy steel pipe anti-corrosion coating spraying device according to any one of claims 1-9, characterized in that: The top of the limiting installation cylinder is provided with several warning elements at intervals for displaying warning information. The warning elements are fixedly connected to the limiting installation cylinder. Below the warning elements, there is an elastic anti-slip pad for providing anti-slip support to the limiting installation cylinder. The elastic anti-slip pad is located on the lower surface of the limiting installation cylinder and is fixedly connected to the limiting installation cylinder.

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