Anti-corrosion coating spraying equipment for chemical anti-corrosion tank surface treatment

Abstract

The invention discloses anti-corrosion coating spraying equipment for chemical anti-corrosion tank surface treatment, and relates to the technical field of spraying equipment, the anti-corrosion coating spraying equipment comprises a flow guide pipe, a supporting moving unit, a connecting part, a mounting bin, a cover plate, a rotating pipe, a rotating spraying unit, a sliding column, a spraying head and a driving adjusting unit, the driving adjusting unit is used for driving the sliding column to move in the radial direction of the rotating pipe and driving the spray head to rotate in the axial direction of the pivot when the sliding column moves, and during use, the driving adjusting unit is arranged, so that the sliding column drives the spray head to move in the radial direction of the rotating pipe, and the spray head is driven to rotate in the moving process; the spraying track of the spraying head is matched with the outline of the longitudinal sections of the inner walls of the neck and the shoulder of the tank body, so that the opening of the spraying head is perpendicular to the inner walls of the neck and the shoulder as much as possible, and spraying can be uniform.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, and specifically to a spraying equipment for anti-corrosion coating of chemical anti-corrosion tank surface treatment. Background Technology

[0002] Chemical tanks are a general term for tank equipment used in chemical production for raw material pretreatment, chemical reactions, and product refining. They are fundamental equipment in the chemical industry and encompass various types, including storage tanks, mixing tanks, and reaction tanks. Applications include the chemical, coating, pharmaceutical, and food industries. The materials stored in chemical tanks (such as acids, alkalis, salts, and organic solvents) are mostly highly corrosive. For cost and strength considerations, carbon steel is typically used for the tank body. While carbon steel is sturdy, its chemically reactive properties make it highly susceptible to corrosion by these media. Corrosion continuously thins the tank walls, leading to decreased strength and, in severe cases, leakage, causing safety accidents and environmental pollution. Product contamination: Rust and other metal ions produced by corrosion can mix into the stored chemicals, causing a decrease in product purity, discoloration, and deterioration, resulting in significant economic losses.

[0003] like Figure 10 As shown, existing chemical tanks generally include a tank body 1, a nozzle 1a, a neck 1b, and a shoulder 1c. The longitudinal section of the shoulder 1c is generally parabolic, and the longitudinal section of the neck 1b is generally straight. Therefore, when spraying the inner walls of the neck 1b and shoulder 1c of the tank body 1, it is necessary to adjust the spraying direction in real time to ensure that the nozzle of the spraying equipment is nearly perpendicular to the inner wall of the shoulder 1c and neck 1b, so that uneven spraying does not occur. However, the nozzles of the existing spraying equipment are often fixed, and the paint is prone to dripping and other phenomena due to uneven spraying. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed. Therefore, the purpose of the present invention is to provide a corrosion-resistant coating spraying device for surface treatment of chemical corrosion-resistant tanks, and the problem to be solved is that the nozzles of the spraying devices in the prior art are often fixed, and during spraying, the coating is prone to dripping and other phenomena due to uneven spraying.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant coating spraying device for surface treatment of chemical corrosion-resistant tanks, comprising: The guide tube is equipped with a support and movement unit, and one end is connected to a connecting part. The end of the connecting part away from the guide tube is fixed to an installation chamber. One side of the installation chamber is open and a cover plate is installed. The cover plate is rotatably connected to a rotating tube. The rotating tube is connected to the guide tube. The installation chamber is equipped with a rotating spraying unit for driving the rotating tube to rotate. A sliding column is vertically and slidably inserted through the rotating tube. A nozzle is rotatably connected to the end of the sliding column away from the rotating tube via a mounting pivot. The nozzle is connected to the rotating tube through a pipe. A drive adjustment unit is provided on the rotating tube. The drive adjustment unit is used to drive the sliding column to move radially along the rotating tube, and when the sliding column moves, it drives the nozzle to rotate axially about the pivot.

[0006] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, the supporting moving unit includes two hinge seats sleeved on the guide pipe, one of the hinge seats is fixedly sleeved on the guide pipe, and the other hinge seat is slidably sleeved on the guide pipe. Each of the two hinge seats is hinged with a support leg, and a support wheel is rotatably connected to the end of the support leg away from the guide pipe. The support legs on the two hinge seats are correspondingly hinged.

[0007] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, wherein: a rotating sleeve is threaded around the periphery of the guide pipe, and one of the hinge seats is rotatably connected to the rotating sleeve.

[0008] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, the rotary spraying unit includes a motor installed in the installation chamber, the motor is driven by a drive gear, the rotary tube is fixedly sleeved with a driven gear, and the drive gear and the driven gear mesh.

[0009] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, the drive adjustment unit includes a connecting cylinder slidably fitted onto a rotating tube, an abutment frame fixedly connected to the end of the connecting cylinder away from the rotating tube, and a rotating component provided on the connecting cylinder, the rotating component being used to drive the rotating tube to rotate when the connecting cylinder and the rotating tube move relative to each other; A rotating ring is rotatably fitted around the periphery of the connecting cylinder. A hinge rod is hinged around the periphery of the rotating ring. The end of the hinge rod away from the rotating ring is hinged to a sliding column. A swing arm is fixedly connected to each end of the pivot. A vertical rod is fixedly connected to the rotating tube. The upper end of the vertical rod abuts against the downward-facing side of the swing arm.

[0010] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, wherein: a mounting base is fixedly connected to the upper end of the sliding column, the pivot passes through the mounting base and rotates freely, a spiral spring is installed in the inner cavity of the mounting base, the spiral spring is wrapped around the pivot, and the inner end of the spiral spring is fixedly connected to the pivot, and the outer end of the spiral spring is fixedly connected to the inner wall of the mounting base.

[0011] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, the rotating component includes two balls rotatably embedded in the periphery of one end of the rotating tube, and the inner wall of the connecting cylinder is provided with a spiral rolling groove for the balls to engage and roll freely.

[0012] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, wherein: an elastic element is installed inside the connecting cylinder, and the elastic element elastically abuts against the end face of the rotating tube.

[0013] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, wherein: an annular airbag is installed in the inner cavity of the nozzle, the annular hole of the annular airbag is coaxial with and communicates with the inner cavity of the nozzle, the outer periphery of the annular airbag is fixed to the inner wall of the nozzle cavity, and the sliding column is provided with an inflation unit, which is used to inflate the annular airbag when the nozzle opening swings upward.

[0014] As a preferred embodiment of the anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to the present invention, the inflation unit includes an inflation part connected to a sliding column, the pivot slides coaxially through the inflation part, a fixed baffle is fixedly connected to the inner cavity of the inflation part, a movable baffle is fixedly connected to the periphery of the pivot, the movable baffle, the fixed baffle and the inner cavity of the inflation part constitute a communicating cavity, and the communicating cavity is connected to an annular airbag through an air pipe.

[0015] The present invention has at least the following beneficial effects: 1. The present invention, by setting a drive adjustment unit, enables the sliding column to drive the nozzle to move radially along the rotating tube. During the movement, the nozzle is simultaneously driven to rotate, so that the spraying trajectory of the nozzle matches the contour of the longitudinal section of the inner wall of the neck and shoulder of the tank, thereby making the nozzle opening as perpendicular as possible to the inner wall of the neck and shoulder, thus enabling more uniform spraying.

[0016] 2. In this invention, by setting an abutment frame to abut against the inner wall of the can's inlet, and as the guide pipe moves within the can, the connecting cylinder and the rotating pipe rotate relative to each other, causing the rotating pipe to rotate. When the rotating pipe rotates, the rotating ring drives the hinge rod to swing, allowing the hinge rod to move the sliding column radially along the rotating pipe. This, in turn, causes the sliding column to move the nozzle toward the rotating pipe. As the nozzle moves, the swing arm is squeezed by the upright, causing the swing arm to rotate the nozzle, so that the nozzle opening faces the inner wall of the neck or shoulder, making the nozzle opening nearly perpendicular to the inner wall of the neck or shoulder. Furthermore, the rotation of the rotating pipe is driven by the abutment frame against the inner wall of the can, replacing the motor-driven rotation of the rotating pipe, thus adapting the rotation state of the rotating pipe to the relative motion state of the rotating pipe and the connecting cylinder.

[0017] 3. In this invention, when the pivot rotates, it drives the movable baffle to rotate, which in turn causes the movable baffle to rotate within the mounting base. This increases the internal volume of the communicating cavity, allowing air from the annular airbag to enter the communicating cavity. This causes the annular airbag to contract and the annular holes of the annular airbag to recover their deformation and expand. As a result, when the paint is sprayed out of the annular holes of the annular airbag, the flow rate decreases. This prevents the paint from rebounding and splashing on the inner wall of the neck due to excessive spraying pressure as the nozzle approaches the inner wall of the neck, thus preventing the paint from dripping and sag on the inner wall of the neck. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of an anti-corrosion coating spraying device for surface treatment of chemical anti-corrosion tanks according to the present invention; Figure 2 for Figure 1 A diagram illustrating the positional relationships from a first-person perspective. Figure 3 for Figure 1 A diagram illustrating the positional relationships from a second-person perspective; Figure 4 This is a schematic diagram showing the positional relationship between the rotating tube, the abutment frame, and the mounting compartment after assembly in this invention. Figure 5 for Figure 4 Schematic diagram of the explosive decomposition of the medium structure: Figure 6 for Figure 4 Another perspective: a diagram showing the positional relationship of parts of the structure after being cut open. Figure 7 for Figure 6 Enlarged schematic diagram of the local structure at point A: Figure 8 This is a schematic diagram showing the positional relationship of the swing arm, pivot, and mounting base after assembly in this invention; Figure 9 for Figure 8 Schematic diagram showing the positional relationship of the middle section after it has been cut open: Figure 10 This is a schematic diagram of the cross-sectional structure of a chemical tank in the prior art.

[0020] Explanation of reference numerals in the attached drawings: 1. Tank body; 1a. Inlet; 1b. Neck; 1c. Shoulder; 2. Guide pipe; 3. Rotating sleeve; 4. Hinge seat; 5. Support leg; 6. Connecting part; 7. Mounting chamber; 8. Hinge rod; 9. Connecting cylinder; 10. Abutment frame; 11. Rotating ring; 12. Cover plate; 13. Sliding column; 14. Nozzle; 15. Swing arm; 16. Upright pole; 17. Rotating pipe; 18. Inflating part; 19. Elastic element; 20. Mounting seat; 21. Driven gear; 22. Motor; 23. Drive gear; 24. Spiral rolling groove; 25. Ball bearing; 26. Annular airbag; 27. Scroll spring; 28. Pivot; 29. ​​Fixed baffle; 30. Movable baffle; 31. Communicating cavity. Detailed Implementation

[0021] 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.

[0022] This invention discloses an anti-corrosion coating spraying device for surface treatment of chemical anti-corrosion tanks.

[0023] Example 1 Reference Figure 1-10This invention provides a first embodiment of an anti-corrosion coating spraying device for the surface treatment of chemical anti-corrosion tanks. This device includes a guide pipe 2, with two hinge seats 4 sleeved around its periphery. One hinge seat 4 is fixedly sleeved on the guide pipe 2, and the other hinge seat 4 is slidably sleeved on the guide pipe 2. Each hinge seat 4 is hinged with a support leg 5. A support wheel is rotatably connected to the end of each support leg 5 away from the guide pipe 2. The support legs 5 on the two hinge seats 4 are correspondingly hinged, or in other words, the two support legs 5 on the same side of the two hinge seats 4 are centrally hinged. Additionally, a rotating sleeve 3 is threadedly sleeved around the periphery of the guide pipe 2. One of the hinge seats 4 (the one away from the nozzle 14) is rotatably connected to the rotating sleeve 3. The rotating sleeve 3 is threaded onto the guide pipe 2, thereby enabling the rotating sleeve 3 to drive... The movable hinge 4 moves, thereby causing the two hinges 4 to move relative to each other. When the two hinges 4 move relative to each other, the two adjacent legs 5 will rotate along the hinge joint, and the support wheel will move radially along the guide pipe 2, so that the support wheel can abut against the inner wall of the tank 1. During operation, the guide pipe 2 is placed inside the tank 1, and the rotating sleeve 3 is rotated. The rotating sleeve 3 is screwed onto the guide pipe 2. Using the driving force of the screw engagement, one hinge 4 away from the installation chamber 7 is driven to move towards the other hinge 4, causing the legs 5 to rotate and the support wheel to move away from the guide pipe 2, so that the support wheel can abut against the inner wall of the tank 1. In this embodiment, the bottom of the tank 1 is provided with a discharge port, which is open, so that the guide pipe 2 and the abutment frame 10 can be put into the tank 1 from the discharge port. One end of the guide pipe 2 is connected to a connecting part 6, and the other end of the guide pipe 2 is connected to an external paint delivery pump (such as an airless sprayer) through a pipeline. An installation chamber 7 is fixedly connected to the end of the connecting part 6 away from the guide pipe 2. One side of the installation chamber 7 is open and fitted with a cover plate 12. A rotating pipe 17 is rotatably connected to the cover plate 12. A blind hole is provided at one end of the rotating pipe 17 inside the installation chamber 7, communicating with the guide pipe 2, thus allowing the rotating pipe 17 to communicate with the guide pipe 2. A protrusion is fixedly connected to one end of the rotating pipe 17 extending out of the cover plate 12. A sliding column 13 is slidably mounted on the protrusion, and the axis of the sliding column 13 is perpendicular to the axis of the rotating pipe 17. A pivot 28 is horizontally rotatably connected to the end of the sliding column 13 away from the rotating pipe 17. A nozzle 14 is fixedly connected to the pivot 28, and a pipeline is installed on the nozzle 14, which is connected to the rotating pipe 17. The rotating tube 17 is connected to the nozzle 14 through the blind hole. In addition, a motor 22 is installed in the installation chamber 7. The motor 22 drives the drive gear 23. The rotating tube 17 is fixedly sleeved with a driven gear 21. The drive gear 23 and the driven gear 21 mesh. When spraying the inner wall of the tank 1 (excluding the neck 1a, shoulder 1c and nozzle 1a), the motor 22 drives the drive gear 23 to rotate. Through the meshing of the drive gear 23 and the driven gear 21, the rotating tube 17 can be driven to rotate. When the rotating tube 17 rotates, the nozzle 14 will face the inner wall of the tank 1 (excluding the neck 1a, shoulder 1c and nozzle 1a) and spray the inner wall of the tank 1 (excluding the neck 1a, shoulder 1c and nozzle 1a) evenly. A connecting cylinder 9 is coaxially and slidably fitted onto the end of the rotating tube 17 away from the installation chamber 7. A retaining bracket 10 is fixedly connected to the end of the connecting cylinder 9 away from the rotating tube 17. The diameter of the retaining bracket 10 is slightly larger than the inner diameter of the tube opening 1a, so that when the guide tube 2 and the tank body 1 are coaxial, the retaining bracket 10 can precisely abut against the inner wall of the tube opening 1a. Two ball bearings 25 are rotatably embedded around one end of the rotating tube 17. A spiral rolling groove 24 is formed on the inner wall of the connecting cylinder 9 for the ball bearings 25 to engage and roll freely. An elastic element 19 is installed inside the connecting cylinder 9, and the elastic element 19 elastically abuts against the end face of the rotating tube 17. A rotating ring 11 is rotatably mounted around the periphery of the connecting cylinder 9. A hinge rod 8 is hinged around the periphery of the rotating ring 11. The end of the hinge rod 8 away from the rotating ring 11 is hinged to the sliding column 13. A swing arm 15 is fixedly connected to each end of the pivot 28. A vertical rod 16 is fixedly connected to the rotating tube 17. The upper end of the vertical rod 16 abuts against the downward side of the swing arm 15. A mounting seat 20 is fixedly connected to the upper end of the sliding column 13. The pivot 28 passes through the mounting seat 20 and rotates freely. A spiral spring 27 is installed in the inner cavity of the mounting seat 20. The spiral spring 27 is wrapped around the pivot 28, and the inner end of the spiral spring is fixedly connected to the pivot 28, while the outer end of the spiral spring is fixedly connected to the inner wall of the mounting seat 20. An annular airbag 26 is installed in the inner cavity of the nozzle 14. The annular hole of the annular airbag 26 is coaxial with and communicates with the inner cavity of the nozzle 14. The outer periphery of the annular airbag 26 is fixed to the inner wall of the nozzle 14. The sliding column 13 is connected to the inflation part 18. Specifically, the inflation part 18 is coaxially and fixedly sleeved on the end of the mounting base 20. The pivot 28 is coaxially and slidably passed through the inflation part 18. A fixed baffle 29 is fixedly connected to the inner cavity of the inflation part 18. A movable baffle 30 is fixedly connected to the periphery of the pivot 28. The movable baffle 30, the fixed baffle 29 and the inner cavity of the inflation part 18 constitute a communicating cavity 31. The communicating cavity 31 is connected to the annular airbag 26 through an air tube.

[0024] The working principle of this embodiment: The guide pipe 2 is placed inside the tank 1, and the rotating sleeve 3 is rotated. The rotating sleeve 3 is screwed onto the guide pipe 2. The driving force of the screw engagement drives one hinge 4 away from the installation chamber 7 to move towards the other hinge 4, causing the support leg 5 to rotate and the support wheel to move away from the guide pipe 2. This allows the support wheel to abut against the inner wall of the tank 1. An external metal pipe is connected to the end of the guide pipe 2 away from the installation chamber 7, and the metal pipe is connected to an external paint delivery pump (such as an airless sprayer). This allows paint to enter the guide pipe 2 through the metal pipe, and the metal pipe can be driven by an external traction device. The guide tube moves, causing the guide tube 2 to move from the bottom of the tank 1 toward the opening 1a (the bottom of the tank 1 has an outlet, which is open). During the movement, an external power supply is connected, causing the motor 22 to drive the drive gear 23 to rotate. Through the meshing of the drive gear 23 and the driven gear 21, the rotating tube 17 can be driven to rotate. When the rotating tube 17 rotates, the nozzle 14 will face the inner wall of the tank 1 (excluding the neck 1a, shoulder 1c and opening 1a), and the inner wall of the tank 1 (excluding the neck 1a, shoulder 1c and opening 1a) will be evenly sprayed. As the abutment frame 10 moves, when the abutment frame 10 contacts the inner wall of the pipe opening 1a (reference...), Figure 10 When the abutment frame 10 intersects with the inner wall of the pipe opening 1a and the neck 1b, the abutment frame 10 will stop moving. At this time, as the guide pipe 2 continues to move towards the pipe opening 1a, and the motor 22 stops rotating, the connecting cylinder 9 will be stationary due to the resistance between the abutment frame 10 and the inner wall of the pipe opening 1a. The ball bearing 25 will rotate in the spiral rolling groove 24, allowing the rotating pipe 17 to rotate. When the rotating pipe 17 rotates, the nozzle 14 will rotate around the rotating pipe 17. At the same time, the rotating ring 11 will move towards the installation chamber 7, and the hinge rod 8 will drive the sliding column 13 to move, thereby causing the nozzle 14 to move towards the rotating pipe 17. In addition, the swing arm 15 will be blocked by the upright rod 16, causing the swing arm 15 to drive the pivot 28 to rotate, allowing the pivot 28 to drive the nozzle 14 to rotate, and causing the spiral spring 27 to be in a contracted state and accumulate elastic potential energy. As the nozzle 14 moves toward the rotating tube 17, its opening also swings toward the contact frame 10, thereby aligning the opening of the nozzle 14 with the inner walls of the shoulder 1c and neck 1b, making the opening of the nozzle 14 nearly perpendicular to the inner walls of the shoulder 1c and neck 1b. When the nozzle 14 begins to spray the neck 1b, because the inner wall of the neck 1b is flat, the lateral distance between the nozzle 14 and the surface of the neck 1b decreases as the guide tube 2 moves. This easily causes the paint to bounce off the inner wall of the neck 1b, resulting in paint splashing and dripping. Therefore, the pivot 28 rotates... When rotating, the movable baffle 30 will rotate, which in turn will cause the movable baffle 30 to rotate within the mounting base 20, increasing the internal volume of the connecting cavity 31. This allows air from the annular airbag 26 to enter the connecting cavity 31, causing the annular airbag 26 to contract and its annular holes to recover their deformation and expand. This reduces the flow rate of the paint as it is sprayed from the annular holes of the annular airbag 26, thus preventing excessive paint spraying pressure when the nozzle 14 approaches the inner wall of the neck 1b, which could cause the paint to bounce and splash on the inner wall of the neck 1b, resulting in dripping.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A corrosion-resistant coating spraying device for surface treatment of chemical corrosion-resistant tanks, characterized in that, include: The guide pipe (2) is provided with a support and moving unit, and one end is connected to a connecting part (6). The connecting part (6) is fixed to an installation chamber (7) at the end away from the guide pipe (2). The installation chamber (7) is open on one side and is equipped with a cover plate (12). The cover plate (12) is rotatably connected to a rotating pipe (17). The rotating pipe (17) is connected to the guide pipe (2). The installation chamber (7) is provided with a rotating spraying unit for driving the rotating pipe (17) to rotate. A sliding column (13) is vertically and slidably inserted through the rotating tube (17). The end of the sliding column (13) away from the rotating tube (17) is rotatably connected to a nozzle (14) via a mounting pivot (28). The nozzle (14) is connected to the rotating tube (17) through a pipe. A drive adjustment unit is provided on the rotating tube (17). The drive adjustment unit is used to drive the sliding column (13) to move radially along the rotating tube (17), and when the sliding column (13) moves, it drives the nozzle (14) to rotate axially around the pivot (28).

2. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 1, characterized in that, The supporting moving unit includes two hinge seats (4) sleeved on the guide pipe (2), one of the hinge seats (4) is fixedly sleeved on the guide pipe (2), and the other hinge seat (4) is slidably sleeved on the guide pipe (2). Each of the two hinge seats (4) is hinged with a support leg (5). The end of the support leg (5) away from the guide pipe (2) is rotatably connected to a support wheel. The support legs (5) on the two hinge seats (4) are hinged to each other.

3. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 2, characterized in that, The guide tube (2) is threadedly fitted with a rotating sleeve (3) around its periphery, and one of the hinge seats (4) is rotatably connected to the rotating sleeve (3).

4. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 1, characterized in that, The rotary spraying unit includes a motor (22) installed in the mounting chamber (7), the motor (22) is driven by a drive gear (23), and the rotary tube (17) is fixedly fitted with a driven gear (21), the drive gear (23) and the driven gear (21) mesh.

5. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 1, characterized in that, The drive adjustment unit includes a connecting cylinder (9) that is slidably fitted onto the rotating tube (17). A contact frame (10) is fixedly connected to one end of the connecting cylinder (9) away from the rotating tube (17). The connecting cylinder (9) is provided with a rotating component, which is used to drive the rotating tube (17) to rotate when the connecting cylinder (9) and the rotating tube (17) move relative to each other. The connecting cylinder (9) is rotatably fitted with a rotating ring (11), and a hinge rod (8) is hinged to the periphery of the rotating ring (11). The end of the hinge rod (8) away from the rotating ring (11) is hinged to the sliding column (13). A swing arm (15) is fixed to each end of the pivot (28). A vertical rod (16) is fixed to the rotating tube (17). The upper end of the vertical rod (16) abuts against the downward side of the swing arm (15).

6. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 5, characterized in that, The upper end of the sliding column (13) is fixedly connected to the mounting base (20). The pivot (28) passes through the mounting base (20) and rotates freely. The inner cavity of the mounting base (20) is equipped with a spiral spring (27). The spiral spring (27) is wrapped around the pivot (28), and the inner end is fixedly connected to the pivot (28), while the outer end is fixedly connected to the inner wall of the mounting base (20).

7. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 5, characterized in that, The rotating assembly includes two balls (25) rotatably embedded at one end of the rotating tube (17), and the inner wall of the connecting cylinder (9) is provided with a spiral rolling groove (24) for the balls (25) to engage and roll freely.

8. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 7, characterized in that, An elastic element (19) is installed inside the connecting cylinder (9), and the elastic element (19) elastically abuts against the end face of the rotating tube (17).

9. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 1, characterized in that, The nozzle (14) is equipped with an annular airbag (26) in its inner cavity. The annular hole of the annular airbag (26) is coaxial with and connected to the inner cavity of the nozzle (14). The outer periphery of the annular airbag (26) is fixed to the inner wall of the nozzle (14). The sliding column (13) is provided with an inflation unit. The inflation unit is used to inflate the annular airbag (26) when the nozzle (14) swings upward.

10. The anti-corrosion coating spraying equipment for surface treatment of chemical anti-corrosion tanks according to claim 9, characterized in that, The inflation unit includes an inflation part (18) connected to a sliding column (13). The pivot (28) slides through the inflation part (18) coaxially. A fixed baffle (29) is fixedly connected to the inner cavity of the inflation part (18). A movable baffle (30) is fixedly connected to the periphery of the pivot (28). The movable baffle (30), the fixed baffle (29), and the inner cavity of the inflation part (18) constitute a communicating cavity (31). The communicating cavity (31) is connected to the annular airbag (26) through an air tube.

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