Uniform spraying device for steel structure surface fireproof coating construction

By designing a spraying workbench and drying mechanism, the problem of uneven spraying on the inner and outer surfaces of the steel structure was solved, achieving uniform spraying in a single pass and improving production efficiency.

CN223788773UActive Publication Date: 2026-01-13SICHUAN XINGCHENG GONGZHU NEW BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202520140135.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-13
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing spraying equipment cannot uniformly spray the inner and outer surfaces of steel structures, resulting in insufficient single spraying and the need for secondary spraying, which affects production efficiency.

Method used

A device was designed that includes a spraying workbench, a uniform spraying mechanism, and a drying mechanism. The device delivers paint to the hollow frame and the folded tube via a pump, sprays the inner and outer surfaces using No. 1 and No. 2 paint nozzles respectively, and dries the surface using a hot air blower.

Benefits of technology

It achieves uniform coating of the inner and outer surfaces of the steel structure in a single application, avoiding secondary coating and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel structure surface processing, and discloses a uniform spraying device for steel structure surface fireproof coating construction, which comprises a spraying workbench and a steel structure main body, the top of the spraying workbench is provided with a driving mechanism, the top of the spraying workbench is provided with a uniform spraying mechanism, and the steel structure main body is provided with a fireproof coating. And a drying mechanism is arranged at the top of the spraying workbench. Through the design of the pump machine, paint can be conveyed into the inner cavity of the first hollow frame piece and the inner cavity of the folding pipe, through the shape design of the first hollow frame piece and the distribution design of the first paint spraying nozzles, uniform spraying treatment can be conducted on the outer surface of the steel structure body, and through the shape design of the folding pipe and the distribution design of the second paint spraying nozzles, the paint can be uniformly sprayed on the outer surface of the steel structure body. And the inner surface of the steel structure main body can be uniformly sprayed, so that the inner surface and the outer surface of the steel structure main body can be uniformly sprayed through single spraying, and the problem that the steel structure main body needs to be subjected to secondary spraying processing is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure surface processing technology, specifically to a uniform spraying device for applying fireproof coatings to steel structure surfaces. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates, and employs rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. Due to its light weight and simple construction, it is widely used in large factories, stadiums, high-rise buildings, bridges, and other fields. To improve the fire resistance of steel structures, fire-retardant coatings are applied to their surfaces.

[0003] Steel structures are mostly I-shaped. Existing spraying equipment cannot uniformly spray the inner and outer surfaces of steel structures. After a single spraying, the inner surface will have insufficient coating, requiring a second spraying process, which in turn affects production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a uniform spraying device for applying fire-retardant coatings to steel structures, thereby solving the problem that existing technologies cannot uniformly spray the inner and outer surfaces of steel structures.

[0005] This utility model provides the following technical solution: a uniform spraying device for applying fireproof coating to the surface of a steel structure, comprising a spraying workbench and a steel structure body, wherein a driving mechanism is provided on the top of the spraying workbench, a uniform spraying mechanism is provided on the top of the spraying workbench, and a drying mechanism is provided on the top of the spraying workbench.

[0006] The uniform spraying mechanism includes a first hollow frame, a support, and a paint tank. The first hollow frame is fixedly installed on the top of the spraying workbench. A first paint nozzle is fixedly connected to the inner wall of the first hollow frame. A folded pipe is fixedly connected to the right side of the first hollow frame. A second paint nozzle is fixedly connected to the end of the folded pipe. The support is fixedly installed on the top of the spraying workbench. A pump is fixedly installed on the top of the support. The output pipe of the pump is fixedly connected to the outer wall of the first hollow frame.

[0007] As a preferred embodiment of the above technical solution, the paint tank is fixedly installed on the top of the spraying workbench, the input pipe of the pump is fixedly connected to the bottom of the paint tank, and an addition valve is fixedly connected to the top of the paint tank.

[0008] The above technical solution, through the cooperation of paint tank and adding valve, allows for the temporary storage of fire-retardant paint, making it convenient for pumps to extract and use.

[0009] As a preferred embodiment of the above technical solution, a stirring shaft is rotatably connected between the two sides of the inner wall of the paint tank, and a drive motor is fixedly installed on the right side of the paint tank, with the output shaft of the drive motor fixedly connected to the end of the stirring shaft.

[0010] The above technical solution, through the cooperation of the drive motor and the stirring shaft, can mix the temporarily stored coating, ensuring the coating's effectiveness.

[0011] As a preferred embodiment of the above technical solution, the driving mechanism includes a lifting frame, which is fixedly installed on the top of the spraying workbench. A fitting frame is fixedly installed on the top of the lifting frame, and the main steel structure is movably connected to the inner wall of the fitting frame.

[0012] Through the above technical solution and the design that fits the frame, the main steel structure can be provided with limiting support for movement.

[0013] As a preferred embodiment of the above technical solution, a driven roller and a driving roller are rotatably connected on the inner wall of the fitting frame, the top of the driven roller and the driving roller are movably connected to the bottom of the main steel structure, a servo motor is fixedly installed on the back of the fitting frame, and the output shaft of the servo motor is fixedly connected to the end of the driving roller.

[0014] The above technical solution, through the design of servo motors and active rollers, can drive the main steel structure on the frame to move, facilitating the automatic spraying process.

[0015] As a preferred embodiment of the above technical solution, the drying mechanism includes a second hollow frame, which is fixedly installed on the top of the spraying workbench. A first mesh plate is fixedly installed on the inner wall of the second hollow frame, and a bent pipe is fixedly connected to the right side of the second hollow frame. A second mesh plate is fixedly installed at the end of the bent pipe.

[0016] Through the above technical solution, and by designing the positions of the No. 1 and No. 2 mesh panels, the steel structure can be thoroughly dried using hot airflow.

[0017] As a preferred embodiment of the above technical solution, the number of the second hollow frame members is set to two, and a diversion pipe is fixedly connected between the tops of the two second hollow frame members, and a hot air fan is fixedly connected to the top of the diversion pipe.

[0018] Through the above technical solution, hot air can be delivered into the two second hollow frames by the cooperation of hot air blower and diversion pipe, which facilitates the drying process.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention, through the design of a pump, can deliver paint into the inner cavity of the first hollow frame and the folded tube. The shape design of the first hollow frame and the distribution design of the first paint nozzle allow for uniform spraying of the outer surface of the steel structure. The shape design of the folded tube and the distribution design of the second paint nozzle allow for uniform spraying of the inner surface of the steel structure. Thus, uniform spraying of both the inner and outer surfaces of the steel structure can be completed in a single spraying operation, avoiding the need for secondary spraying and improving the production efficiency of the steel structure. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a schematic diagram of the drive mechanism of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the first hollow frame component of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the paint can of this utility model;

[0025] Figure 5 This is a schematic diagram of the drying mechanism of this utility model.

[0026] In the diagram: 1. Spraying workbench; 11. Steel structure main body; 2. Drive mechanism; 21. Lifting frame; 22. Fitting frame; 23. Driven roller; 24. Servo motor; 25. Driven roller; 3. Uniform spraying mechanism; 31. First hollow frame; 32. No. 1 paint nozzle; 33. Bending pipe; 34. No. 2 paint nozzle; 35. Support; 36. Pump; 37. Paint tank; 371. Adding valve; 372. Stirring shaft; 373. Drive motor; 4. Drying mechanism; 41. Second hollow frame; 42. No. 1 screen plate; 43. Bending pipe; 44. No. 2 screen plate; 45. Diversion pipe; 46. Hot air blower. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] like Figures 1-5As shown, this utility model provides a technical solution: a uniform spraying device for applying fireproof coating to the surface of a steel structure, comprising a spraying workbench 1 and a steel structure body 11. A driving mechanism 2 is provided on the top of the spraying workbench 1, a uniform spraying mechanism 3 is provided on the top of the spraying workbench 1, and a drying mechanism 4 is provided on the top of the spraying workbench 1. The uniform spraying mechanism 3 includes a first hollow frame 31, a support 35, and a paint tank 37. The first hollow frame 31 is fixedly installed on the top of the spraying workbench 1. A first paint nozzle 32 is fixedly connected to the inner wall of the first hollow frame 31. A folded tube 33 is fixedly connected to the right side of the first hollow frame 31, and a second paint nozzle 3 is fixedly connected to the end of the folded tube 33. 4. The support 35 is fixedly installed on the top of the spraying workbench 1. The pump 36 is fixedly installed on the top of the support 35. The output pipe of the pump 36 is fixedly connected to the outer wall of the first hollow frame 31. By controlling the operation of the pump 36, the paint inside the paint tank 37 can be drawn and then transported into the inner cavity of the first hollow frame 31. Part of the paint will be output from the first paint nozzle 32 to uniformly spray the outer surface of the steel structure body 11. The folded pipe 33 is connected to the inner cavity of the first hollow frame 31. Another part of the paint will pass through the folded pipe 33 and be output from the second paint nozzle 34 to uniformly spray the inner surface of the steel structure body 11. This can improve the uniform spraying efficiency of the steel structure body 11.

[0029] As one implementation method in this embodiment, such as Figure 2 , Figure 4As shown, a paint tank 37 is fixedly installed on the top of the spraying workbench 1. The input pipe of the pump 36 is fixedly connected to the bottom of the paint tank 37. An addition valve 371 is fixedly connected to the top of the paint tank 37. A stirring shaft 372 is rotatably connected between the two sides of the inner wall of the paint tank 37. A drive motor 373 is fixedly installed on the right side of the paint tank 37. The output shaft of the drive motor 373 is fixedly connected to the end of the stirring shaft 372. The drive mechanism 2 includes a lifting frame 21, which is fixedly installed on the top of the spraying workbench 1. A fitting frame 22 is fixedly installed on the top of the lifting frame 21. The main steel structure 11 is movably connected to the inner wall of the fitting frame 22. A driven roller 23 and a driving roller 25 are rotatably connected to the inner wall of the fitting frame 22. The tops of the driven roller 23 and the driving roller 25 are connected to the steel structure. The bottom of the main body 11 is movably connected to a servo motor 24 fixedly installed on the back of the fitting frame 22. The output shaft of the servo motor 24 is fixedly connected to the end of the drive roller 25. By opening the addition valve 371, paint can be added to the inner cavity of the paint tank 37 for temporary storage. Controlling the drive motor 373 to work can drive the stirring shaft 372 to rotate in the inner cavity of the paint tank 37, continuously mixing the paint in the inner cavity of the paint tank 37, avoiding the problem of paint sedimentation during temporary storage, and improving the paint's performance. Controlling the servo motor 24 to work can drive the drive roller 25 to rotate. At the same time, the fitting frame 22 limits the movement of the steel structure main body 11, thereby causing the steel structure main body 11 to automatically move to the left on this structure, facilitating the spraying work.

[0030] As one implementation method in this embodiment, such as Figure 5 As shown, the drying mechanism 4 includes a second hollow frame 41, which is fixedly installed on the top of the spraying workbench 1. A first mesh plate 42 is fixedly installed on the inner wall of the second hollow frame 41. A bent pipe 43 is fixedly connected to the right side of the second hollow frame 41, and a second mesh plate 44 is fixedly installed at the end of the bent pipe 43. The number of second hollow frames 41 is set to two, and a diversion pipe 45 is fixedly connected between the tops of the two second hollow frames 41. A hot air blower 4 is fixedly connected to the top of the diversion pipe 45. 6. Control the hot air blower 46 to deliver hot air into the inner cavity of the diversion pipe 45. Through the design of the diversion pipe 45, the hot air enters the interior of the two second hollow frame members 41 respectively. Part of the hot air will pass through the first mesh plate 42 and be sprayed onto the outer surface of the steel structure body 11, while the other part of the hot air will pass through the bend pipe 43 and be output from the second mesh plate 44, spraying onto the inner surface of the steel structure body 11. This achieves the function of uniformly drying the steel structure body 11, facilitating the timely use of the steel structure body 11.

[0031] Working principle: During use, paint is added to the inner cavity of paint tank 37 by opening the addition valve 371 for temporary storage. The drive motor 373 is controlled to drive the stirring shaft 372 to rotate in the inner cavity of paint tank 37, continuously mixing the paint in the inner cavity of paint tank 37. Then, the steel structure body 11 is placed in the inner cavity of the fitting frame 22. The servo motor 24 is controlled to drive the active roller 25 to rotate, which can transport the steel structure body 11 to the left. Then, the pump 36 is controlled to work, outputting paint from the first paint nozzle 32 and the second paint nozzle 34 to uniformly spray the inner and outer surfaces of the steel structure body 11. At the same time, the hot air blower 46 is controlled to work, outputting hot airflow from the first screen plate 42 and the second screen plate 44 to uniformly dry the steel structure body 11.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A uniform spraying device for the application of a fireproof coating on the surface of a steel structure, comprising a spraying worktable (1) and a steel structure body (11), characterized in that: The top of the spraying workbench (1) is provided with a driving mechanism (2), the top of the spraying workbench (1) is provided with a uniform spraying mechanism (3), and the top of the spraying workbench (1) is provided with a drying mechanism (4). The uniform spraying mechanism (3) comprises a first hollow frame (31), a support (35) and a paint tank (37), the first hollow frame (31) is fixedly installed on the top of the spraying workbench (1), a first paint spraying head (32) is fixedly connected to the inner wall of the first hollow frame (31), a pipe bending (33) is fixedly connected to the right side of the first hollow frame (31), a second paint spraying head (34) is fixedly connected to the end of the pipe bending (33), the support (35) is fixedly installed on the top of the spraying workbench (1), and a pump (36) is fixedly installed on the top of the support (35). The output pipe of the pump (36) is fixedly connected with the outer wall of the first hollow frame (31).

2. A uniform spraying device for the application of a fireproof coating on the surface of a steel structure according to claim 1, characterized in that: The paint tank (37) is fixedly installed on the top of the spraying workbench (1), the input pipe of the pump (36) is fixedly connected with the bottom of the paint tank (37), and the top of the paint tank (37) is fixedly connected with an adding valve (371).

3. A uniform spraying device for the application of a fire-resistant coating to a steel structure according to claim 2, characterized in that: The two sides of the inner wall of the paint tank (37) are rotatably connected with a stirring shaft (372), a driving motor (373) is fixedly installed on the right side of the paint tank (37), and the output shaft of the driving motor (373) is fixedly connected with the end of the stirring shaft (372).

4. The uniform spraying device for the construction of a fireproof coating on the surface of a steel structure according to claim 1, characterized in that: The driving mechanism (2) comprises a lifting frame (21), the lifting frame (21) is fixedly installed on the top of the spraying workbench (1), a fitting frame (22) is fixedly installed on the top of the lifting frame (21), and the steel structure main body (11) is movably connected to the inner wall of the fitting frame (22).

5. A uniform spraying device for the application of a fire-resistant coating to a steel structure according to claim 4, characterized in that: The inner wall of the fitting frame (22) is rotatably connected with a driven roller (23) and a driving roller (25), the top of the driven roller (23) and the driving roller (25) is movably connected with the bottom of the steel structure main body (11), a servo motor (24) is fixedly installed on the back of the fitting frame (22), and the output shaft of the servo motor (24) is fixedly connected with the end of the driving roller (25).

6. A uniform spraying device for the application of a fire-resistant coating to a steel structure according to claim 1, characterized in that: The drying mechanism (4) comprises a second hollow frame (41), the second hollow frame (41) is fixedly installed on the top of the spraying workbench (1), a first mesh plate (42) is fixedly installed on the inner wall of the second hollow frame (41), a bent pipe (43) is fixedly connected to the right side of the second hollow frame (41), and a second mesh plate (44) is fixedly installed on the end of the bent pipe (43).

7. A uniform spraying device for the application of a fire-resistant coating to a steel structure according to claim 6, characterized in that: The number of the second hollow frame (41) is two, a shunt pipeline (45) is fixedly connected between the top of the two second hollow frames (41), and a hot air blower (46) is fixedly connected to the top of the shunt pipeline (45).