A device for quickly painting protective steel pipes

CN122999449APending Publication Date: 2026-10-30CHINA CONSTRUCTION EIGHTH BUREAU (INNER MONGOLIA) CONSTRUCTION CO LTD
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Patent Information

Application Number
CN202611351685.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-09-02
Publication Date
2026-10-30

AI Technical Summary

Technical Problem

[0005]现有技术仍需工人手持设备作业,劳动强度依旧较大;依靠滚刷沿钢管移动涂刷,管件无法自转,漆膜易厚薄不均,还难以实现分段、多色刷漆;该装置无储漆结构,需频繁蘸取油漆,作业效率有限,也不能适配不同刷漆长度需求,不适合大批量钢管刷漆施工,故而存在一定局限性

Benefits of technology

[0014]其一:本发明采用手摇齿轮传动带动钢管自转的作业方式,依靠从动齿轮内部橡胶条夹紧管件,无需人工转动钢管。操作简单省力,单人即可完成钢管外壁刷漆工作,摆脱滚筒、毛刷手工来回涂刷的繁琐工序,降低操作人员劳动强度;同时钢管匀速旋转,涂刷速度可控,避免人工操作速度不均带来的涂刷瑕疵。

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Abstract

The present application relates to a kind of paint brushing devices, belong to hardware processing technical field, specifically a kind of fast paint brushing device for protective steel pipe, including U-shaped groove and steel pipe, the both sides of the U-shaped groove are provided with clamping slot, further including gear transmission mechanism and dyeing paint storage box: the gear transmission mechanism includes the driving gear being set at the outside one side of U-shaped groove, the one side of the driving gear is engaged with driven gear;Multiple the dyeing paint storage box is set in the inside of U-shaped groove;The present application paint brushing efficiency is high, paint film is uniform, solve the prior art still needs worker handheld equipment operation, labor intensity is still relatively large;Rely on rolling brush and move along steel pipe and brush, pipe cannot rotate, paint film is prone to thick and thin uneven, also difficult to realize segmentation, multi-color paint brushing;The device has no paint storage structure, needs to frequently dip paint, operation efficiency is limited, also cannot adapt to different paint brushing length demand, is not suitable for large quantities of steel pipe paint brushing construction problem.
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Description

Technical Field

[0001] This invention relates to the field of hardware processing technology, and in particular to a device for quickly painting protective steel pipes. Background Technology

[0002] In the fields of building construction and municipal engineering, scaffolding steel pipes, guardrails and other components often need to be painted for rust prevention and marking. At present, painting is mostly done manually with hand-held brushes, which is not only inefficient and difficult to meet the time requirements of large-scale construction, but also has poor stability, and the paint film is prone to missed spots and uneven thickness, affecting the rust prevention and marking effect. Moreover, the repetitive labor is labor-intensive and workers are prone to fatigue, which further reduces the painting quality and construction progress.

[0003] A search revealed Chinese patent CN215189856U, which discloses a steel pipe painting device in the field of construction. The device includes a handle connected end-to-end, a vertical pole welded to the top of the handle, an L-shaped connecting shaft welded to the top of the vertical pole, a roller brush fitted onto the L-shaped connecting shaft, and a protective cover disposed on the outside of the roller brush. The two ends of the protective cover are engaged with the L-shaped connecting shaft. The protective cover is a plate that surrounds the outside of the roller brush. The protective cover includes an L-shaped main body and connecting parts that bend vertically inward from both ends of the main body. An arc-shaped latch is formed in the middle of the connecting part, and the latch engages with the two ends of the L-shaped connecting shaft. This invention solves the problem of low painting efficiency in existing scaffolding steel pipe painting methods that use a single roller.

[0004] Based on the above search and existing technology, the following findings were made:

[0005] Current technology still requires workers to operate the equipment by hand, resulting in high labor intensity. Relying on a roller brush to move along the steel pipe for painting, the pipe cannot rotate, leading to uneven paint film thickness and difficulty in achieving segmented or multi-color painting. The device lacks a paint storage structure, requiring frequent paint dipping, which limits work efficiency and cannot adapt to different painting length requirements, making it unsuitable for large-scale steel pipe painting. Therefore, it has certain limitations. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention proposes a rapid painting device for protective steel pipes. This device, through mechanized transmission and modular design, overcomes many drawbacks of manual painting and has the advantages of simple operation, high efficiency, and strong adaptability, making it suitable for batch painting operations of various types of protective steel pipes.

[0007] The technical solution for achieving the purpose of this invention is: a device for quickly painting protective steel pipes, comprising a U-shaped groove and a steel pipe, wherein slots are provided on both sides of the U-shaped groove, and further comprising a gear transmission mechanism and a paint storage box.

[0008] The gear transmission mechanism includes a driving gear disposed on one side of the outside of the U-shaped groove, and a driven gear meshing on one side of the driving gear;

[0009] Multiple dyeing and varnish storage boxes are arranged inside the U-shaped channel.

[0010] Preferably, transparent protective plates are fixedly installed on both sides of the top of the U-shaped channel, the steel pipe is clamped inside the slot, a support frame is fixedly installed at the bottom of the U-shaped channel, casters are fixedly installed at the bottom of the support frame, and a guide rail is fixedly installed inside the U-shaped channel.

[0011] Preferably, the dyeing paint storage box is slidably mounted on the guide rail, a dyeing sponge is fixedly installed on the top of the dyeing paint storage box, and cover plates are provided on both sides of the dyeing paint storage box through hinges. The cover plates are adapted to the dyeing sponge, and the steel pipe is attached to the dyeing sponge.

[0012] Preferably, a detachable rubber strip is fixedly installed on the outside of the steel pipe, the detachable rubber strip is set inside the driven gear, a crank handle is fixedly installed on the shaft end of the driving gear, a gearbox is fixedly installed on the outside of the U-shaped groove, and one end of the crank handle passes through the gearbox and is fitted with an anti-slip sleeve.

[0013] The significant advantages of this invention compared to existing technologies are:

[0014] Firstly, this invention employs a hand-cranked gear transmission to drive the steel pipe's rotation. The pipe is clamped by a rubber strip inside the driven gear, eliminating the need for manual rotation. This simple and labor-saving operation allows a single person to complete the painting of the steel pipe's outer wall, eliminating the tedious process of manually applying paint with rollers and brushes, and reducing the operator's workload. Simultaneously, the uniform rotation of the steel pipe ensures controllable painting speed, avoiding painting defects caused by uneven speeds during manual operation.

[0015] Secondly, the invention is equipped with a support frame with casters at the bottom, which allows for flexible movement and transportation of the whole; the paint storage box slides along the guide rail with adjustable spacing, which can adapt to the painting needs of various steel pipes of different lengths; the paint storage box with a cover plate can reduce paint evaporation and waste, and the sponge-impregnated painting structure makes the paint utilization rate higher; each component is easy to disassemble and assemble, and the rubber clamping strip and the dyeing sponge can be disassembled and replaced separately, making later maintenance very convenient.

[0016] Thirdly, during the painting process, the steel pipe and sponge rotate in close contact, ensuring that the paint can be evenly applied to all parts of the outer wall of the pipe. This results in a uniform and stable coating thickness, high consistency in painting quality, and effectively reduces construction defects such as missed areas and drips. The overall structure is simple and compact, requiring no external power supply, and can be used in field construction sites. It is highly adaptable and effectively improves the construction efficiency of anti-corrosion painting of steel pipes.

[0017] This invention solves the problems of existing technologies that still require workers to operate handheld equipment, resulting in high labor intensity; relying on rollers to move along the steel pipe for painting, which results in uneven paint film thickness due to the pipe's inability to rotate; difficulty in achieving segmented or multi-color painting; and the lack of a paint storage structure, requiring frequent paint dipping, which limits work efficiency and cannot adapt to different painting length requirements, making it unsuitable for large-scale steel pipe painting. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0020] Figure 2 This is a side view structural diagram provided in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the U-shaped groove structure provided in two embodiments of the present invention;

[0022] Figure 4 This is a top view structural diagram provided in two embodiments of the present invention;

[0023] Figure 5 This is a schematic diagram of the gear transmission mechanism provided in two embodiments of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. U-shaped groove; 101. Card slot; 2. Support frame; 201. Caster wheel; 3. Steel pipe; 4. Transparent protective plate; 5. Gearbox; 501. Drive gear; 502. Driven gear; 503. Removable rubber strip; 6. Handle; 601. Anti-slip sleeve; 7. Dyed sponge; 8. Dyed paint storage box; 9. Guide rail; 10. Cover plate. Detailed Implementation

[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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.

[0027] This invention provides an improved device for quickly painting protective steel pipes. The technical solution of this invention is as follows:

[0028] Example 1

[0029] like Figures 1-2As shown, a device for quickly painting protective steel pipes includes a U-shaped groove 1 and a steel pipe 3. The U-shaped groove 1 has slots 101 on both sides. It also includes a gear transmission mechanism and a paint storage box 8.

[0030] The gear transmission mechanism includes a drive gear 501 disposed on one side of the outside of the U-shaped groove 1, and a driven gear 502 meshing on one side of the drive gear 501.

[0031] Multiple dyeing and paint storage boxes 8 are arranged inside the U-shaped groove 1.

[0032] Example 2:

[0033] Based on the first embodiment of this application which provides a device for quickly painting protective steel pipes, the second embodiment of this application proposes another device for quickly painting protective steel pipes. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0034] The second embodiment of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] like Figures 3-5 As shown, transparent protective plates 4 are fixedly installed on both sides of the top of the U-shaped channel 1, and steel pipe 3 is clamped inside the slot 101. A support frame 2 is fixedly installed at the bottom of the U-shaped channel 1, and casters 201 are fixedly installed at the bottom of the support frame 2. A guide rail 9 is fixedly installed inside the U-shaped channel 1. The transparent protective plates 4 can block paint splashes and isolate dust and debris, and allow real-time observation of the painting process through the plates. At the same time, they can provide safety isolation and protection for the rotating steel pipe 3, and also slow down the evaporation and loss of paint.

[0036] As a further embodiment of the present invention, the dyeing paint storage box 8 is slidably mounted on the guide rail 9, and a dyeing sponge 7 is fixedly mounted on the top of the dyeing paint storage box 8. Cover plates 10 are provided on both sides of the dyeing paint storage box 8 through hinges. The cover plates 10 are adapted to the dyeing sponge 7, and the steel pipe 3 is attached to the dyeing sponge 7. According to the length of the steel pipe 3 to be painted, the position of the dyeing paint storage box 8 on the guide rail 9 is moved to determine the spacing between the dyeing paint storage boxes 8. If the color needs to be changed, the paint and the corresponding sponge can be replaced directly.

[0037] Furthermore, a detachable rubber strip 503 is fixedly installed on the outside of the steel pipe 3. The detachable rubber strip 503 is set inside the driven gear 502. A crank handle 6 is fixedly installed on the shaft end of the drive gear 501. A gearbox 5 is fixedly installed on the outside of the U-shaped groove 1. One end of the crank handle 6 passes through the gearbox 5 and is fitted with an anti-slip sleeve 601. When the crank handle 6 is cranked, the drive gear 501 drives the driven gear 502 to rotate, so that the steel pipe 3 rotates quickly and evenly. The steel pipe 3 comes into contact with the dyeing sponge 7 during rotation, so as to achieve uniform painting.

[0038] The specific working method is as follows: First, fix the support frame 2 to the bottom of the U-shaped channel 1. Install the universal wheels 201 at the bottom of the support frame 2 to complete the assembly of the machine base. Install transparent protective plates 4 on both sides of the top of the U-shaped channel 1. Fix the gearbox 5 to one side of the outer side of the U-shaped channel 1. The gearbox 5 is equipped with a gear transmission mechanism. The crank handle 6 is fixedly installed on the shaft end of the drive gear 501. One end of the crank handle 6 passes through the outside of the gearbox 5 and is fitted with an anti-slip sleeve 601. The drive gear 501 and the driven gear 502 mesh with each other. The driven gear 502 is equipped with a detachable rubber strip 503. Then, fix the guide rail 9 inside the U-shaped channel 1. Slide the multiple dyeing paint storage boxes 8 on the guide rail 9. Install the dyeing sponge 7 on the top of the dyeing paint storage box 8. The two sides are connected to the dyeing sponge through hinges. The cover plate 10 is adapted to the colored sponge 7; during the installation and debugging stage, according to the length of the steel pipe 3 to be painted, the position of the dyeing paint storage box 8 is moved and adjusted along the guide rail 9 to determine the spacing between the paint storage boxes; paint is added into the dyeing paint storage box 8 so that the dyeing sponge 7 is fully soaked and absorbs the paint; the steel pipe 3 is clamped into the slots 101 on both sides of the U-shaped groove 1, and the end of the steel pipe 3 is clamped into the detachable rubber strip 503 inside the driven gear 502 to achieve clamping and fixation, ensuring that the outer wall of the steel pipe 3 is in close contact with the dyeing sponge 7; after the whole machine is installed, the crank handle 6 is turned, the drive gear 501 drives the driven gear 502 to drive the steel pipe 3 to rotate, and the painting operation is completed by the contact between the rotating steel pipe 3 and the dyeing sponge 7. If the paint color needs to be changed, the paint inside the paint storage box can be replaced and the dyeing sponge 7 can be replaced.

[0039] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A device for quickly painting protective steel pipes, comprising a U-shaped groove (1) and a steel pipe (3), characterized in that: The U-shaped groove (1) has slots (101) on both sides, and also includes: The gear transmission mechanism includes a drive gear (501) disposed on one side outside the U-shaped groove (1), and a driven gear (502) meshes with one side of the drive gear (501). A dyeing lacquer storage box (8) is provided inside the U-shaped groove (1).

2. The device for quickly painting protective steel pipes according to claim 1, characterized in that: Transparent protective plates (4) are fixedly installed on both sides of the top of the U-shaped groove (1). The steel pipe (3) is snapped into the inside of the slot (101). A support frame (2) is fixedly installed at the bottom of the U-shaped groove (1). A caster wheel (201) is fixedly installed at the bottom of the support frame (2). A guide rail (9) is fixedly installed inside the U-shaped groove (1).

3. A device for rapidly painting protective steel pipes according to any one of claims 1-2, characterized in that: The dyeing paint storage box (8) is slidably installed on the guide rail (9). A dyeing sponge (7) is fixedly installed on the top of the dyeing paint storage box (8). Cover plates (10) are provided on both sides of the dyeing paint storage box (8) through hinges. The cover plates (10) are adapted to the dyeing sponge (7). The steel pipe (3) is attached to the dyeing sponge (7).

4. The device for quickly painting protective steel pipes according to claim 1, characterized in that: A detachable rubber strip (503) is fixedly installed on the outside of the steel pipe (3). The detachable rubber strip (503) is set inside the driven gear (502). A crank handle (6) is fixedly installed on the shaft end of the driving gear (501). A gearbox (5) is fixedly installed on the outside of the U-shaped groove (1). One end of the crank handle (6) passes through the gearbox (5) and is fitted with an anti-slip sleeve (601).

Citation Information

Patent Citations

  • Steel pipe painting device

    CN215189856U