Efficient paint drying device for steel structure

By combining an infrared heating plate and an adjustable frame structure, the problems of uneven paint drying and inconvenient cleaning are solved, achieving efficient and uniform drying and rapid cleaning of steel structure paint spraying.

CN224358819UActive Publication Date: 2026-06-16郑州蔚蓝钢结构工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
郑州蔚蓝钢结构工程有限公司
Filing Date
2025-06-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing high-efficiency drying devices for steel structure painting cannot accurately control temperature distribution, resulting in uneven drying. Furthermore, cleaning requires manual operation, which is time-consuming and troublesome.

Method used

Using an infrared heating plate as the core heat source, combined with an adjustable frame and push rod structure, heat can penetrate vertically through the paint layer, and the filter can be quickly disassembled and installed through quick-release components.

Benefits of technology

It achieves uniform heating of painted parts, shortens cleaning time, and improves drying efficiency and quality stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224358819U_ABST
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Abstract

The utility model relates to steel structure processing technical field discloses a kind of efficient drying device for steel structure paint spraying, including box, the top inboard of box is fixedly connected with infrared heating plate, bracket frame is installed below infrared heating plate, four rotating rods are rotatably connected in the inside of bracket frame, four push rods are symmetrically arranged in the both sides of bracket frame, center shaft is installed at the center of four push rods, outer sleeve is rotatably connected at the end of four push rods away from bracket frame, stable block is fixedly connected with the bottom side in the inside of box, two fixed shafts are fixedly connected with the both sides of stable block.In the utility model, through infrared heating plate, its radiant heat energy vertically penetrates paint spraying layer, acts on paint film internal moisture evaporation, avoids local uneven heating under the action of adjusting organization lifting synchronization;When filtering paint wet heat toxic gas, cleaning or fan inspection work of filter screen is greatly shortened in time by quick disassembly.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a high-efficiency drying device for painting steel structures. Background Technology

[0002] High-efficiency drying devices, through an integrated design of "heating-ventilation-intelligent control," solve the problems of low efficiency and unstable quality associated with traditional methods, and are widely used in large-scale industrial and municipal steel structure projects. Meanwhile, traditional technologies, with their advantages of low cost and flexibility, still retain applications in small-scale, low-requirement scenarios. The difference between the two essentially lies in balancing the "demand for industrial efficiency" with the "demand for flexible economics."

[0003] Existing high-efficiency drying devices for steel structure painting primarily accelerate the drying process through hot air circulation. These devices are typically equipped with fans to circulate air and accelerate the drying of the paint layer. The fans guide airflow to the painted surface, increasing the rate of moisture evaporation. However, these devices often cannot precisely control temperature distribution, and the hot air may not evenly cover the entire surface during the heating process, especially on thick paint films or complex structures, potentially leading to uneven drying. Furthermore, cleaning of existing equipment still requires manual operation, increasing maintenance costs and time.

[0004] Existing equipment typically uses traditional hot air heating or external heating devices as heat sources. The heat from these sources cannot accurately penetrate the paint film, resulting in unsatisfactory moisture evaporation. The lack of infrared heating plates significantly reduces drying efficiency and prevents precise heat distribution. While existing devices offer some air-drying capabilities, the operation of their fans cannot control the uniformity of heating the paint film, easily leading to over-drying or under-drying in certain areas, affecting the painting effect. For fans or filters that require frequent cleaning, traditional equipment usually requires manual disassembly, which is time-consuming and cumbersome. Furthermore, in existing technologies, the connection between the push rod and the frame is mostly fixed, making it impossible to adjust the drying range and intensity, resulting in uneven heating of painted parts during the drying process. Therefore, a high-efficiency drying device for steel-structured painting is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency drying device for steel structure painting, which aims to improve the problem that the filter screen cannot be quickly disassembled in the prior art, which is time-consuming and troublesome.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency drying device for steel structure painting, comprising a box body, an infrared heating plate fixedly connected to the inner top of the box body, a frame installed directly below the infrared heating plate, four rotating rods rotatably connected inside the frame, four push rods symmetrically arranged on both sides of the frame, a central shaft installed at the center of the four push rods, and an outer sleeve rotatably connected to the end of each of the four push rods away from the frame, a stabilizing block fixedly connected to the bottom inside the box body, two fixed shafts fixedly connected to both sides of the stabilizing block, the two fixed shafts fixedly connected to opposite sides between the two outer sleeves, a screw threadedly connected inside the stabilizing block, a motor installed at the end of the screw away from the outer sleeve, a fixed block fixedly connected to the other end of the screw, a rod sleeve threadedly connected to the outside of the screw, and a drying assembly provided outside the box body;

[0007] As a further description of the above technical solution:

[0008] The air drying assembly includes a ventilation shell, which is fixedly connected to the rear side of the housing. A fan and a filter are installed inside the ventilation shell, and a quick-release assembly is installed on the outside of the ventilation shell for quick installation and removal of the filter.

[0009] As a further description of the above technical solution:

[0010] The quick-release assembly includes a housing, which is fixedly connected to the outside of the ventilation housing. A slide rod is slidably connected inside the housing, which passes through the ventilation housing and is inserted into the inside of the filter screen. A spring is provided on the outside of the slide rod, and a gasket is fixedly connected to the outside of the slide rod.

[0011] As a further description of the above technical solution:

[0012] The frame has a groove on both sides, and the box has a groove on both sides of the bottom. The two outer sleeves are slidably connected to the top of the two grooves.

[0013] As a further description of the above technical solution:

[0014] The box body has two windows on both sides, and screws are installed inside the rod sleeve;

[0015] As a further description of the above technical solution:

[0016] A funnel is fixedly connected to the bottom of the frame, a water pipe is fixedly connected to the bottom of the funnel, and an oil tank is fixedly connected to the end of the water pipe away from the funnel. The oil tank is fixedly connected inside the tank body.

[0017] As a further description of the above technical solution:

[0018] The bottom of the box is fixedly connected to four support legs, and a tabletop one is fixedly connected to the inner side of the middle of the four support legs, and a tabletop two is fixedly connected to the bottom of the four support legs;

[0019] As a further description of the above technical solution:

[0020] A rotating block is fixedly connected to the side of the box away from the ventilation shell, and a box door is fixedly connected to the end of the rotating block away from the box.

[0021] As a further description of the above technical solution:

[0022] One end of the spring is fixedly connected to one side of the washer, and the other end of the spring is fixedly connected to the inside of the outer casing.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the core heat source is a fixed infrared heating plate on the inner side of the top, which is located directly above the frame. Its radiant heat energy can penetrate vertically through the paint layer and directly act on the moisture evaporation inside the paint film. The frame can swing up and down under the drive of the screw, rod sleeve and other adjustment mechanisms through the linkage of the push rods on both sides, the central shaft and the outer sleeve, which drives the suspended steel structure to move synchronously, avoiding uneven heating caused by static placement, thereby achieving a uniform heating effect.

[0025] 2. In this utility model, the ventilation shell and the outer shell are connected by elastic snaps of springs, slide rods and gaskets, and can be disassembled quickly and manually without tools, which greatly shortens the time for cleaning the filter or inspecting the fan. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency drying device for steel structure painting proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the door of a high-efficiency drying device for steel structure painting proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged image;

[0029] Figure 4 This is a schematic diagram of the structure of a fan for a high-efficiency drying device for steel structure painting proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the ventilation shell of a high-efficiency drying device for steel structure painting proposed in this utility model.

[0031] Legend:

[0032] 1. Cabinet; 2. Infrared heating plate; 3. Frame; 4. Push rod; 5. Central shaft; 6. Outer casing; 7. Motor; 8. Screw; 9. Rod sleeve; 10. Stabilizing block; 11. Fixed shaft; 12. Fixed block; 13. Ventilation shell; 14. Fan; 15. Filter screen; 16. Slide rod; 17. Spring; 18. Outer shell; 19. Gasket; 20. Water pipe; 21. Oil tank; 22. Rotating rod; 23. Funnel; 24. Groove one; 25. Groove two; 26. Leg; 27. Tabletop one; 28. Tabletop two; 29. ​​Rotating block; 30. Cabinet door; 31. Window; 32. Screw. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 This utility model provides an embodiment of a high-efficiency drying device for steel structure painting, comprising a box body 1, an infrared heating plate 2 fixedly connected to the inner top of the box body 1, a frame 3 installed directly below the infrared heating plate 2, four rotating rods 22 rotatably connected inside the frame 3, four push rods 4 symmetrically arranged on both sides of the frame 3, a central shaft 5 installed at the center of the four push rods 4, and an outer sleeve 6 rotatably connected to the end of each of the four push rods 4 away from the frame 3, a stabilizing block 10 fixedly connected to the bottom inside the box body 1, two fixed shafts 11 fixedly connected to both sides of the stabilizing block 10, the two fixed shafts 11 fixedly connected to the opposite side between the two outer sleeves 6, a screw 8 threadedly connected inside the stabilizing block 10, a motor 7 installed at the end of the screw 8 away from the outer sleeve 6, a fixed block 12 fixedly connected to the other end of the screw 8, a rod sleeve 9 threadedly connected to the outside of the screw 8, and a drying assembly provided outside the box body 1.

[0035] Specifically, a high-efficiency drying device for steel structure painting includes a housing 1. An infrared heating plate 2 is fixedly connected to the inner top of the housing 1, serving as the core heat source whose radiant heat energy can vertically penetrate the paint layer. A frame 3 is installed directly below the infrared heating plate 2. Four rotating rods 22 are rotatably connected inside the frame 3 for placing items and adjusting their position. Four push rods 4 are symmetrically arranged on both sides of the frame 3. A central shaft 5 is installed at the center of the four push rods 4 to fix the four push rods 4 and allow them to rotate outside the central shaft 5. An outer sleeve 6 is rotatably connected to the end of each of the four push rods 4 away from the frame 3. A stabilizing block 10 is fixedly connected to the bottom inside the housing 1. Two fixed shafts 11 are fixedly connected to both sides of the stabilizing block 10. The two fixed shafts 11 are fixedly connected to the opposite side between the two outer sleeves 6. They are used to adjust the up and down movement of the component by sliding the stabilizing block 10 back and forth. A screw 8 is threadedly connected inside the stabilizing block 10. A motor 7 is installed at the end of the screw 8 away from the outer sleeve 6. When the motor 7 starts, it drives the movement of the stabilizing block 10 through the screw 8. A fixed block 12 is fixedly connected to the other end of the screw 8. A rod sleeve 9 is threadedly connected to the outside of the screw 8 for fixing the screw 8. A drying component is set on the outside of the box 1 to accelerate air flow and remove solvent vapor from the paint film surface.

[0036] Reference Figures 4-5 The air drying assembly includes a ventilation shell 13, which is fixedly connected to the rear side of the housing 1. A fan 14 and a filter screen 15 are provided inside the ventilation shell 13. A quick-release assembly is provided on the outside of the ventilation shell 13 for quick installation and removal of the filter screen 15.

[0037] Specifically, the air drying assembly includes a ventilation shell 13, which is fixedly connected to the rear side of the housing 1. The ventilation shell 13 forms an air duct inside. A fan 14 and a filter screen 15 are installed inside the ventilation shell 13 to carry toxic gases through the fan 14 into the filter screen 15 and filter them out of the housing 1. A quick-release assembly is provided on the outside of the ventilation shell 13 for quick disassembly, which is convenient for cleaning or replacing internal parts.

[0038] Reference Figures 4-5 The quick-release assembly includes a housing 18, which is fixedly connected to the outside of the ventilation housing 13. A slide rod 16 is slidably connected inside the housing 18. The slide rod 16 passes through the ventilation housing 13 and is inserted into the inside of the filter screen 15. A spring 17 is provided on the outside of the slide rod 16, and a gasket 19 is fixedly connected to the outside of the slide rod 16.

[0039] Specifically, the quick-release assembly includes a housing 18, which is fixedly connected to the outside of the ventilation housing 13 for fixing to the housing 18 without disassembly. A slide rod 16 is slidably connected inside the housing 18. The slide rod 16 passes through the ventilation housing 13 and is inserted into the inside of the filter screen 15. A spring 17 is provided outside the slide rod 16. A gasket 19 is fixedly connected outside the slide rod 16 for the tension of the spring 17 to act on the slide rod 16 fixedly connected inside the gasket 19, so that it is snapped into the inside of the housing 18.

[0040] Reference Figures 1-2 The frame 3 has groove 24 on both sides, and the box body 1 has groove 25 on both sides of the bottom. The two outer jackets 6 are slidably connected to the top of the two grooves 25.

[0041] Specifically, the frame 3 has groove 1 24 on both sides, and the box body 1 has groove 25 on both sides of the bottom. The two outer sleeves 6 are slidably connected to the top of the two grooves 25, so that the parts on the two grooves 25 and the two grooves 1 24 can slide back and forth.

[0042] Reference Figures 1-3 The box body 1 has two windows 31 on both sides, and the rod sleeve 9 has screws 32 installed inside.

[0043] Specifically, the housing 1 has two windows 31 on both sides for observing the operation of the equipment, and the rod sleeve 9 has screws 32 installed inside to fix the rod sleeve 9.

[0044] Reference Figure 1 A funnel 23 is fixedly connected to the bottom of the frame 3, a water pipe 20 is fixedly connected to the bottom of the funnel 23, and an oil tank 21 is fixedly connected to the end of the water pipe 20 away from the funnel 23. The oil tank 21 is fixedly connected inside the box body 1.

[0045] Specifically, a funnel 23 is fixedly connected to the bottom of the frame 3, a water pipe 20 is fixedly connected to the bottom of the funnel 23, and an oil tank 21 is fixedly connected to the end of the water pipe 20 away from the funnel 23. The oil tank 21 is fixedly connected inside the box body 1 and is used for paint to flow into the oil tank 21 through the funnel 23.

[0046] Reference Figure 1 The bottom of the box 1 is fixedly connected to four support legs 26, and the inner side of the middle of the four support legs 26 is fixedly connected to a tabletop 27, and the bottom of the four support legs 26 is fixedly connected to a tabletop 28.

[0047] Specifically, four support legs 26 are fixedly connected to the bottom of the box 1, and a tabletop 27 is fixedly connected to the inner side of the middle of the four support legs 26. A tabletop 28 is fixedly connected to the bottom of the four support legs 26 to support the box 1.

[0048] Reference Figures 1-2A rotating block 29 is fixedly connected to the side of the housing 1 away from the ventilation shell 13, and a door 30 is fixedly connected to the end of the rotating block 29 away from the housing 1.

[0049] Specifically, a rotating block 29 is fixedly connected to the side of the housing 1 away from the ventilation shell 13, and a door 30 is fixedly connected to the end of the rotating block 29 away from the housing 1, for opening and closing the door 30 inside the housing 1 via the rotating block 29.

[0050] Reference Figure 5 One end of the spring 17 is fixedly connected to one side of the washer 19, and the other end of the spring 17 is fixedly connected to the inside of the housing 18.

[0051] Specifically, one end of the spring 17 is fixedly connected to one side of the washer 19, and the other end of the spring 17 is fixedly connected to the inside of the housing 18, which is used to fix the spring 17 so that it does not shift or deviate.

[0052] Working principle: At the start of operation, the painted steel structural components are placed on the rotating rod 22 inside the frame 3. Excess paint flows into the oil tank 21 through the funnel 23. The infrared heating plate 2 on the top of the box 1 is activated, emitting medium-wave infrared radiation that directly penetrates the paint layer and heats the moisture in the inner layer of the paint film. To avoid local overheating or uneven heating, the motor 7 drives the screw 8 to rotate. Under the fixation of the rod sleeve 9, the stabilizing block 10 moves back and forth along the screw 8, pushing the push rods 4 on both sides to rise and fall vertically, so that the steel structural components inside the frame 3 are heated evenly, regulating moisture evaporation. The water vapor generated by heating is promptly discharged from the box 1. The fan 14 is activated, and the hot and humid paint gas inside is filtered by the filter screen 15 and carried away by the ventilation shell 13. If the filter screen 15 is clogged, the tension pad 19 drives the slide rod 16 to compress the spring 17, causing the slide rod 16 to disengage from the ventilation shell 13. The filter screen 15 can then be removed, the harmful substances in the filter screen 15 cleaned, and then reinstalled. Loosening the tension pad 19 will restore it to its original position, completing the installation.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency drying device for spray painting steel structures, comprising a housing (1), characterized in that: An infrared heating plate (2) is fixedly connected to the inner top of the housing (1). A frame (3) is installed directly below the infrared heating plate (2). Four rotating rods (22) are rotatably connected inside the frame (3). Four push rods (4) are symmetrically arranged on both sides of the frame (3). A central shaft (5) is installed at the center of the four push rods (4). An outer sleeve (6) is rotatably connected to the end of each of the four push rods (4) away from the frame (3). A stabilizing block (10) is fixedly connected to the bottom inside the housing (1). The stabilizing block (10) has two fixed shafts (11) fixedly connected to both sides. The two fixed shafts (11) are fixedly connected to the opposite side between the two outer sleeves (6). The stabilizing block (10) has a screw (8) threaded inside. A motor (7) is installed at the end of the screw (8) away from the outer sleeve (6). A fixed block (12) is fixedly connected to the other end of the screw (8). A rod sleeve (9) is threaded outside the screw (8). A drying assembly is provided outside the box (1).

2. The high-efficiency drying device for steel structure painting according to claim 1, characterized in that: The air-drying assembly includes a ventilation shell (13), which is fixedly connected to the rear side of the housing (1). A fan (14) and a filter screen (15) are provided inside the ventilation shell (13). A quick-release assembly is provided on the outside of the ventilation shell (13) for quickly installing and removing the filter screen (15).

3. The high-efficiency drying device for steel structure painting according to claim 2, characterized in that: The quick-release assembly includes a housing (18) which is fixedly connected to the outside of the ventilation housing (13). A slide rod (16) is slidably connected inside the housing (18). The slide rod (16) passes through the ventilation housing (13) and is inserted into the inside of the filter screen (15). A spring (17) is provided outside the slide rod (16), and a gasket (19) is fixedly connected outside the slide rod (16).

4. The high-efficiency drying device for spray painting steel structures according to claim 1, characterized in that: The frame (3) has a groove 1 (24) on both sides, and the box body (1) has a groove 2 (25) on both sides of the bottom. The two outer jackets (6) are slidably connected to the top of the two grooves 2 (25).

5. The high-efficiency drying device for painting steel structures according to claim 1, characterized in that: The box (1) has two windows (31) on both sides, and the rod sleeve (9) has screws (32) installed inside.

6. The high-efficiency drying device for painting steel structures according to claim 1, characterized in that: A funnel (23) is fixedly connected to the bottom of the frame (3), a water pipe (20) is fixedly connected to the bottom of the funnel (23), an oil tank (21) is fixedly connected to the end of the water pipe (20) away from the funnel (23), and the oil tank (21) is fixedly connected inside the box body (1).

7. The high-efficiency drying device for steel structure painting according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected to four support legs (26), and the inner side of the middle of the four support legs (26) is fixedly connected to a desktop (27), and the bottom of the four support legs (26) is fixedly connected to a desktop (28).

8. The high-efficiency drying device for steel structure painting according to claim 2, characterized in that: A rotating block (29) is fixedly connected to the side of the housing (1) away from the ventilation shell (13), and a door (30) is fixedly connected to the end of the rotating block (29) away from the housing (1).

9. A high-efficiency drying device for spray painting steel structures according to claim 3, characterized in that: One end of the spring (17) is fixedly connected to one side of the gasket (19), and the other end of the spring (17) is fixedly connected to the inside of the outer casing (18).