Large steel structure paint spraying device in narrow space

By using strong magnetic wheels and drive components in large steel structure painting devices in narrow spaces, combined with metal object detection probes, efficient and uniform painting coverage in narrow spaces is achieved, solving the problem that traditional painting equipment is difficult to enter narrow areas, and reducing labor costs and harmful substance emissions.

CN223083065UActive Publication Date: 2025-07-11CHINA RAILWAY FIRST GRP BUILDING & INSTALLATION ENG CO LTD
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Patent Information

Application Number
CN202422073892.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-07-11
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The existing vehicle-mounted automatic paint spraying device cannot effectively spray large steel structures in a narrow space.

Method used

A large steel structure painting device in a narrow space including a frame, air pump, air pipe and control box is designed. It adopts strong magnetic wheels and drive components, which are firmly adsorbed on the steel structure iron frame through the strong magnetic wheels, and the driving components are automatically adjusted by using the driving components, and the paint position is ensured that the paint is sprayed only on the target metal surface.

Benefits of technology

It realizes efficient and uniform painting coverage in a narrow space, reduces manual intervention and paint waste, reduces labor costs and harmful substance emissions, and improves the efficiency of painting operation and the versatility of the device.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of paint spraying devices, in particular to a narrow-space large steel structure paint spraying device which comprises a frame, an air pump, an air pipe and a control box, a paint spraying sliding rod is fixedly installed at the upper end of the frame, a sliding groove is formed in the front end of the paint spraying sliding rod, and the front end of the paint spraying sliding rod is slidably connected with a paint spraying body through the sliding groove. A front wheel axle and a rear wheel axle are movably installed at the front end of the frame, the rear wheel axle is located below the front wheel axle, a plurality of strong magnetic wheels are detachably installed on the front wheel axle and the rear wheel axle respectively, a driving assembly is fixedly installed at the front end of the frame, and the front wheel axle and the rear wheel axle are both in transmission connection with the driving assembly. According to the large steel structure paint spraying device in the narrow space, the paint spraying position can be automatically adjusted, uniform and comprehensive paint spraying coverage is achieved, manual intervention is reduced, the paint spraying operation efficiency is improved, operation can be conducted in the narrow space, and the problem that traditional paint spraying equipment is difficult to enter a narrow area is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying devices, in particular to a large steel structure paint spraying device in a narrow space. Background Art

[0002] In modern construction, especially bridges and large steel structures, the surface needs to be regularly treated, and the surface is cleaned and painted during the treatment. However, the current vehicle-mounted automatic painting device cannot operate in spaces where small vehicles cannot enter. Therefore, we propose a large steel structure painting device in a narrow space. Utility Model Content

[0003] The main purpose of the utility model is to provide a large steel structure spray painting device in a narrow space, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A large steel structure painting device in a narrow space comprises a frame, an air pump, an air pipe and a control box, a painting slide rod is fixedly installed on the upper end of the frame, a slide groove is opened at the front end of the painting slide rod, and the front end of the painting slide rod is slidably connected with a painting body through the slide groove, a front wheel axle and a rear wheel axle are movably installed at the front end of the frame, and the rear wheel axle is located below the front wheel axle, and a plurality of strong magnetic wheels can be detachably installed on the front wheel axle and the rear wheel axle, a driving assembly is fixedly installed at the front end of the frame, and the front wheel axle and the rear wheel axle are both drivingly connected with the driving assembly;

[0006] The driving assembly includes a driving motor and a transmission pulley, wherein two transmission pulleys are provided, and the two transmission pulleys are respectively fixedly connected to the front wheel axle and the rear wheel axle, the driving motor is fixedly installed at the front end of the frame, and a driving pulley is fixedly installed at the output end of the driving motor, and two transmission belts are transmission-connected to the driving pulley, and the two transmission belts are respectively transmission-connected to the two transmission pulleys.

[0007] Preferably, the paint spraying body includes a movable frame, the rear portion of which is slidably connected to the paint spraying slide rod via a slide groove, three metal object detection probes and three paint spray nozzles are fixedly installed in the movable frame, and the metal object detection probe is arranged in the middle of the paint spray nozzle.

[0008] By adopting the above technical solution: the metal object detection probe ensures that the paint is only sprayed on the target metal surface, avoiding waste and pollution. The left and right movement of the paint nozzle is coordinated with the up and down movement of the paint spraying vehicle to achieve uniform and comprehensive paint coverage, reducing manpower requirements and labor costs, and reducing excessive use and misspraying of paint, which is beneficial to environmental protection and reduces the emission of harmful substances.

[0009] Preferably, the three paint spray nozzles are fixedly connected to an air pump through air pipes.

[0010] By adopting the above technical solution: Through the combined use of an air pump and air pipes, paint can be transported to the paint spray nozzles for spraying, realizing the painting operation.

[0011] Preferably, the strong magnetic wheel includes an elastic rubber wheel. Twelve strong magnetic magnets are embedded in the elastic rubber wheel, and the twelve strong magnetic magnets are arranged in a circular array. Key pins are inserted through the front and rear outer surfaces and the rear outer surface of the elastic rubber wheel.

[0012] By adopting the above technical solution: It can play a role in friction and anti-slip, enabling the strong magnetic wheel to be firmly adsorbed on the steel structure iron frame without additional support, preventing it from slipping during the painting operation.

[0013] Preferably, a plurality of key grooves for cooperating with the key pins are provided on the outer surfaces of the front wheel axle and the rear wheel axle.

[0014] By adopting the above technical solution: Detachable installation of the strong magnetic wheel on the front wheel axle or the rear wheel axle can be achieved. The structure is simple and the operation is convenient.

[0015] Preferably, the key pins are inserted into the corresponding key grooves to fixedly install the strong magnetic wheel on the front wheel axle or the rear wheel axle.

[0016] By adopting the above technical solution: Through the design of the key grooves and key pins, the strong magnetic wheel can slide on the front wheel axle or the rear wheel axle, thereby realizing free adjustment of the position of the strong magnetic wheel, being applicable to vertical steel beams of different widths, increasing the versatility and flexibility of the device, being able to operate in a narrow space, and solving the problem that traditional painting equipment is difficult to enter narrow areas.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. Using the drive assembly to drive the strong magnetic wheels on the front wheel axle and the rear wheel axle to rotate can automatically adjust the painting position, reduce manual intervention, and improve the efficiency of the painting operation. At the same time, the strong magnetic wheel combines rubber and high magnetic force magnets, which can play a role in friction and anti-slip, enabling the strong magnetic wheel to be firmly adsorbed on the steel structure iron frame without additional support, preventing it from slipping during the painting operation.

[0019] 2. Through the design of the key grooves and key pins, the strong magnetic wheel can slide on the front wheel axle or the rear wheel axle, thereby realizing free adjustment of the position of the strong magnetic wheel, being applicable to vertical steel beams of different widths, increasing the versatility and flexibility of the device, being able to operate in a narrow space, and solving the problem that traditional painting equipment is difficult to enter narrow areas.

[0020] 3. The setting of the painting main body. The metal object detection probe ensures that the paint is only sprayed on the target metal surface, avoiding waste and pollution. The left - right movement of the paint nozzle, combined with the up - down movement of the painting vehicle, achieves uniform and comprehensive paint coverage, reduces the manpower requirement, lowers the labor cost, and reduces the over - use and mis - spraying of paint, which is beneficial to environmental protection and reduces the emission of harmful substances. Description of the Drawings

[0021] Figure 1 Front view of the connection structure of the vehicle frame of a large - scale steel structure painting device in a narrow space according to the present utility model;

[0022] Figure 2 Side view of the connection structure of the vehicle frame of a large - scale steel structure painting device in a narrow space according to the present utility model;

[0023] Figure 3 Front view of the overall structure of the strong - magnetic wheels of a large - scale steel structure painting device in a narrow space according to the present utility model;

[0024] Figure 4 Side view of the overall structure of the strong - magnetic wheels of a large - scale steel structure painting device in a narrow space according to the present utility model;

[0025] Figure 5 Schematic diagram of the use state of a large - scale steel structure painting device in a narrow space according to the present utility model.

[0026] In the figures: 1. Vehicle frame; 2. Painting slide bar; 3. Chute; 4. Painting main body; 5. Front wheel axle; 6. Rear wheel axle; 7. Strong - magnetic wheel; 8. Driving assembly; 9. Keyway; 10. Steel structure iron frame; 11. Air pump; 12. Air pipe; 13. Control box; 41. Moving frame; 42. Metal object detection probe; 43. Paint nozzle; 71. Elastic rubber wheel; 72. Strong - magnetic force magnet; 73. Key pin; 81. Driving motor; 82. Driving pulley; 83. Transmission belt; 84. Driven pulley. Detailed Embodiment

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figures 1-5 , the utility model provides a technical solution:

[0031] A large steel structure painting device for a narrow space comprises a frame 1, an air pump 11, an air pipe 12 and a control box 13. A paint spraying slide bar 2 is fixedly mounted on the upper end of the frame 1, a slide groove 3 is provided at the front end of the paint spraying slide bar 2, and a paint spraying body 4 is slidably connected to the front end of the paint spraying slide bar 2 through the slide groove 3. A front wheel axle 5 and a rear wheel axle 6 are movably mounted on the front end of the frame 1, and the rear wheel axle 6 is located below the front wheel axle 5. A plurality of strong magnetic wheels 7 can be detachably mounted on the front wheel axle 5 and the rear wheel axle 6. A drive assembly 8 is fixedly mounted on the front end of the frame 1, and the front wheel axle 5 and the rear wheel axle 6 are both transmission-connected to the drive assembly 8.

[0032] In this embodiment, the driving assembly 8 includes a driving motor 81 and transmission pulleys 84. There are two transmission pulleys 84, and the two transmission pulleys 84 are respectively fixedly connected to the front wheel axle 5 and the rear wheel axle 6. The driving motor 81 is fixedly installed at the front end of the vehicle frame 1. A driving pulley 82 is fixedly installed at the output end of the driving motor 81. Two transmission belts 83 are drivingly connected to the driving pulley 82, and the two transmission belts 83 are respectively drivingly connected to the two transmission pulleys 84; The strong magnetic wheel 7 includes an elastic rubber wheel 71. Twelve strong magnetic magnets 72 are embedded in the elastic rubber wheel 71, and the twelve strong magnetic magnets 72 are arranged in a circular array. Key pins 73 are inserted through the front and rear outer surfaces and the rear outer surface of the elastic rubber wheel 71; A plurality of key grooves 9 for cooperating with the key pins 73 are provided on the outer surfaces of the front wheel axle 5 and the rear wheel axle 6; The key pin 73 is inserted into the corresponding key groove 9 to fixedly install the strong magnetic wheel 7 on the front wheel axle 5 or the rear wheel axle 6.

[0033] Through the above solution: Using the driving assembly 8 to drive the strong magnetic wheels 7 on the front wheel axle 5 and the rear wheel axle 6 to rotate can automatically adjust the painting position, reduce manual intervention, and improve the efficiency of the painting operation. At the same time, the strong magnetic wheel 7 is a combination of rubber and high-strength magnetic magnets. 71 can play a role in friction and anti-slip, and 72 can make the strong magnetic wheel 7 firmly adsorb on the steel structure frame without additional support to prevent slipping during the painting operation. In addition, through the design of the key groove 9 and the key pin 763, the strong magnetic wheel 7 can slide on the front wheel axle 5 or the rear wheel axle 6, so as to realize the free adjustment of the position of the strong magnetic wheel 7, which is suitable for vertical steel beams of different widths, increases the versatility and flexibility of the device, and can operate in a narrow space, solving the problem that traditional painting equipment is difficult to enter narrow areas.

[0034] In this embodiment, the painting main body 4 includes a moving frame 41. The rear part of the moving frame 41 is slidably connected to the painting slide rod 2 through a chute 3. Three metal object detection probes 42 and three paint spray nozzles 43 are fixedly installed in the moving frame 41, and the metal object detection probes 42 are arranged in the middle of the paint spray nozzles 43; The three paint spray nozzles 43 are all fixedly connected to the air pump 11 through an air pipe 12.

[0035] Through the above solution: The metal object detection probe 42 ensures that the paint is only sprayed on the target metal surface, avoiding waste and pollution. The left and right movement of the paint spray nozzle 43 cooperates with the up and down movement of the painting vehicle to achieve uniform and comprehensive painting coverage, reducing the manpower requirement, lowering the labor cost, and reducing the overuse and misspray of paint, which is beneficial to environmental protection and reduces the emission of harmful substances.

[0036] It should be noted that the present utility model is a large steel structure painting device for narrow spaces. During use, the painting vehicle is manually carried to the steel structure iron frame to be painted. Then, the position of the strong magnetic wheel 7 is adjusted by sliding the strong magnetic wheel 7 on the front wheel axle 5 or the rear wheel axle 6 until the width of the strong magnetic wheel 7 is the same as that of the vertical steel beam on the steel structure iron frame. Then, the position of the strong magnetic wheel 7 is locked and fixed by inserting the key pin 73 into the corresponding key groove 9. Then, the painting vehicle is moved closer to the steel structure iron frame to be painted, and the strong magnetic wheels 7 on the front wheel axle 5 and the rear wheel axle 6 are attracted to the vertical steel beam on the steel structure iron frame. At this time, the driving motor 81 can be started, and the driving motor 81 drives the driving pulley 82 to rotate. The front wheel axle 5 and the rear wheel axle 6 are driven to rotate through the transmission belt 83, so that the strong magnetic wheels 7 installed on the front wheel axle 5 and the rear wheel axle 6 rotate, and then the painting vehicle moves upward. When the paint spray head 43 installed in the moving frame 41 runs to the highest point, the painting vehicle stops walking. At this time, the moving frame 41 slides left and right in the metal object detection probe 42, driving the metal object detection probe 42 and the paint spray head 43 in the moving frame 41 to move. When the metal object detection probe 42 detects a metal object at a certain distance in front, the paint spray head 43 will spray paint. Whenever the paint spray head 43 runs from left to right or from right to left once, the painting vehicle moves down a certain height, and the movement is repeated until the painting vehicle drops to the bottom. At this time, the paint spray head 43 is closed and stops spraying paint.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large steel structure painting device for narrow spaces, characterized in that: The vehicle comprises a frame (1), an air pump (11), an air pipe (12) and a control box (13); a paint spraying slide rod (2) is fixedly mounted on the upper end of the frame (1); a slide groove (3) is formed at the front end of the paint spraying slide rod (2); the front end of the paint spraying slide rod (2) is slidably connected to a paint spraying body (4) through the slide groove (3); a front wheel axle (5) and a rear wheel axle (6) are movably mounted on the front end of the frame (1); the rear wheel axle (6) is located below the front wheel axle (5); a plurality of strong magnetic wheels (7) are detachably mounted on the front wheel axle (5) and the rear wheel axle (6); a driving assembly (8) is fixedly mounted on the front end of the frame (1); the front wheel axle (5) and the rear wheel axle (6) are both drivingly connected to the driving assembly (8); The driving assembly (8) comprises a driving motor (81) and a driving pulley (84), wherein two driving pulleys (84) are provided, and the two driving pulleys (84) are respectively fixedly connected to the front wheel axle (5) and the rear wheel axle (6), wherein the driving motor (81) is fixedly mounted on the front end of the vehicle frame (1), and a driving pulley (82) is fixedly mounted on the output end of the driving motor (81), and the driving pulley (82) is drivingly connected to two driving belts (83), and the two driving belts (83) are respectively drivingly connected to the two driving pulleys (84).

2. The large steel structure painting device for narrow spaces according to claim 1, characterized in that: The paint spraying body (4) comprises a movable frame (41), the rear portion of which is slidably connected to the paint spraying slide rod (2) via a slide groove (3), and three metal object detection probes (42) and three paint spray heads (43) are fixedly installed in the movable frame (41), and the metal object detection probe (42) is arranged in the middle of the paint spray head (43).

3. The large-scale steel structure painting device for narrow spaces according to claim 2, characterized in that: The three paint spray heads (43) are all fixedly connected to the air pump (11) via an air pipe (12).

4. The large steel structure painting device for narrow spaces according to claim 1, characterized in that: The strong magnetic wheel (7) comprises an elastic rubber wheel (71), twelve strong magnetic magnets (72) are embedded and installed in the elastic rubber wheel (71), and the twelve strong magnetic magnets (72) are arranged in a ring array, and key pins (73) are inserted and connected to the front and rear of the outer surface and the rear of the outer surface of the elastic rubber wheel (71).

5. A large steel structure painting device for narrow spaces according to claim 1, characterized in that: The outer surfaces of the front wheel axle (5) and the rear wheel axle (6) are both provided with a plurality of key slots (9) for use in conjunction with the key pins (73).

6. The large steel structure painting device for narrow spaces according to claim 4, characterized in that: The key pin (73) is inserted into the corresponding key slot (9) to fix the strong magnetic wheel (7) to the front wheel axle (5) or the rear wheel axle (6).