Pipeline paint spraying protection device and pipeline paint spraying method

Abstract

The invention discloses a pipeline paint spraying protection device and a pipeline paint spraying method, and belongs to the technical field of engineering high-tech services. The paint spraying device comprises a to-be-painted pipeline and further comprises a supporting steel pipe, a fixing support is arranged outside the supporting steel pipe, and a positioning block, a first transmission rod and a second transmission rod are arranged on one side of the fixing support. In order to solve the problem that the paint surface of the pipeline is easy to have defects during paint spraying operation, the support and the supporting steel pipe are connected through the bearing, and the to-be-painted pipeline is fixed outside the supporting steel pipe, so that personnel can rotate the to-be-painted pipeline at a constant speed, the film thickness of the paint surface is ensured to be consistent, and the situation that the local area of the paint surface is missed is avoided; meanwhile, after paint spraying operation is finished, the whole paint surface is completely covered with the dustproof gauze cover, it is guaranteed that the paint surface cannot be polluted by dust in the drying process, the glossiness of the paint surface is improved, and the service life of the paint surface is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of industrial pipeline maintenance, and in particular to a pipeline paint spraying protection device and a pipeline paint spraying method. Background Art

[0002] Painting the pipes can form a protective coating on the pipe surface to prevent the metal pipes from coming into direct contact with water, oxygen and chemicals in the external environment, thereby reducing the risk of corrosion. When the pipes are exposed to the air, they may be affected by oxidation. Painting can form a barrier to reduce oxidation on the pipe surface, thereby maintaining the surface quality and performance of the pipes. Different spray paints have different chemical resistance properties. You can choose the right paint according to the specific environment in which the pipes are located. High-quality spray paints can form a strong adhesion to the pipe surface and are not easy to fall off. Whether it is a metal pipe or a non-metal pipe, whether it is a round pipe or a special-shaped pipe, spray paint can evenly cover its surface and has strong adaptability.

[0003] Fire protection or water supply and drainage pipes all need to be sprayed with anti-rust paint at the construction site. The operator first fixes the pipe on the bracket and then sprays paint on its surface with a spray gun. However, the existing bracket device is designed unreasonably, which may cause local paint omissions or unevenness during painting, and the paint surface is easily contaminated by dust during the drying process. There is a problem that the paint surface of the pipe is prone to defects during the painting operation. Therefore, the existing needs are not met. In this regard, the present application proposes a pipe paint protection device and a pipe painting method. Summary of the invention

[0004] The object of the present invention is to provide a pipeline paint protection device and a pipeline painting method. By connecting the support and the supporting steel pipe through a bearing, and then fixing the pipeline to be painted on the outside of the supporting steel pipe, personnel can rotate the pipeline to be painted at a uniform speed, thereby ensuring the uniform film thickness of the paint surface and avoiding the occurrence of gaps in local areas of the paint surface, which can solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline paint protection device, comprising a pipeline to be painted, and also comprising a supporting steel pipe, wherein the supporting steel pipe is located inside the pipeline to be painted, a support is arranged below the supporting steel pipe, a screw rod and a movable plate are arranged inside the supporting steel pipe, a fixed bracket is arranged outside the supporting steel pipe, a collar is arranged on the top of the support, the supporting steel pipe and the collar are connected to each other through a bearing, a positioning block, a first transmission rod and a second transmission rod are arranged on one side of the fixed bracket, a movable block is arranged on the side of the movable plate, one end of the screw rod is connected to the movable plate shaft, and a turntable is arranged on the other end of the screw rod.

[0006] Preferably, the two ends of the first transmission rod are respectively connected to the fixed bracket and the positioning block shaft, the two ends of the second transmission rod are respectively connected to the moving block and the positioning block shaft, and the positioning block contacts the inner wall of the pipe to be painted.

[0007] Preferably, the fixed bracket is sleeved on the supporting steel pipe, a first through groove is provided on the side of the supporting steel pipe, a second through groove is provided on the side of the fixed bracket, one end of the moving block is connected to the moving plate, and the other end of the moving block extends outward and passes through the first through groove and the second through groove in sequence.

[0008] Preferably, both ends of the supporting steel pipe are provided with limit seats, one end of the screw rod passes through the limit seat and extends to the inside of the supporting steel pipe, and the screw rod is threadedly connected to the limit seat.

[0009] Preferably, a gauze cover bracket is provided on the outside of the pipe to be painted, a dustproof gauze cover is provided on the gauze cover bracket, a pulley is provided at the lower end of the gauze cover bracket, at least two supports are provided, the two supports are symmetrically arranged at both ends of the supporting steel pipe, and the supports are composed of multiple square steel pipes welded together.

[0010] A pipeline painting method is implemented based on a pipeline painting protection device, comprising the following steps:

[0011] Step 1: Clean the site, keep the working environment clean, and operators must wear protective equipment;

[0012] Step 2: Derust and polish the pipe to be painted to ensure that there is no rust and impurities on the surface of the pipe to be painted, and place the pipe to be painted outside the supporting steel pipe;

[0013] Step 3: Rotate the turntable to move one end of the screw rod toward the inside of the supporting steel pipe, thereby moving the moving block inside the second through groove until all four positioning blocks are in contact with the inner wall of the pipe to be painted, thereby fixing the position of the pipe to be painted;

[0014] Step 4: Rotate the pipe to be painted at a constant speed, and the operator uses a spray gun to spray paint on its surface;

[0015] Step 5: After the painting operation is completed, push the screen cover bracket to the outside of the pipe to be painted, and fix the dust screen cover on the screen cover bracket. The dust screen cover must completely cover the entire pipe to be painted, and keep the site well ventilated;

[0016] Step 6. After the paint on the surface of the painted pipe is dry, the operator uses a paint film thickness gauge to check the paint film thickness. Unqualified areas need to be repainted until they meet the acceptance requirements.

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

[0018] 1. The present invention connects the support and the supporting steel pipe through a bearing, and positioning blocks are provided at both ends of the supporting steel pipe. After the personnel puts the pipe to be painted on the outside of the supporting steel pipe, multiple positioning blocks are simultaneously in contact with the inner wall of the pipe to be painted, so that the position of the pipe to be painted is fixed. At this time, the personnel can rotate the pipe to be painted at a uniform speed, thereby ensuring the uniform film thickness of the paint surface. At the same time, the pipe to be painted is not in direct contact with the support and is fixed in mid-air. Compared with the traditional method of placing the pipe to be painted directly on the support for spraying, the support itself will not block the surface of the pipe to be painted, thereby avoiding the occurrence of gaps in local areas of the paint surface.

[0019] 2. The present invention arranges screw rods at both ends of a supporting steel pipe, and a turntable and a movable plate are respectively arranged at both ends of the screw rod. When it is necessary to fix the position of the pipe to be painted, two operators respectively stand at the two ends of the supporting steel pipe and rotate the turntable to make the movable block move inside the second through groove until the four positioning blocks simultaneously contact the inner wall of the pipe to be painted. At this time, the first transmission rod and the second transmission rod are in a folded state, and the position of the pipe to be painted is fixed, thereby avoiding the problem that the shaking of the pipe to be painted affects the normal progress of the painting operation, thereby improving the efficiency and quality of the painting operation; at the same time, when the painting operation is completed, the gauze cover bracket is pushed to the outside of the pipe to be painted, and the dust-proof gauze cover is fixed on the gauze cover bracket, thereby ensuring that the paint surface will not be contaminated by dust during the drying process, thereby improving the gloss and service life of the paint surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the positioning block of the present invention;

[0022] Figure 3 It is a schematic diagram of the local structure of the screw rod of the present invention;

[0023] Figure 4 It is a schematic diagram of the local structure of the supporting steel pipe of the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the movable plate of the present invention.

[0025] In the figure: 1. pipe to be painted; 2. mesh cover bracket; 201. pulley; 3. support; 301. collar; 302. bearing; 4. support steel pipe; 401. limit seat; 402. first through slot; 5. positioning block; 501. first transmission rod; 502. second transmission rod; 6. screw rod; 602. turntable; 7. fixed bracket; 701. second through slot; 8. moving plate; 801. moving block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] To solve the problem of paint defects on the pipe during painting, please refer to Figure 1-5 , this embodiment provides the following technical solutions:

[0028] A pipeline paint protection device includes a pipeline 1 to be painted, and also includes a supporting steel pipe 4, the supporting steel pipe 4 is located inside the pipeline 1 to be painted, a support 3 is arranged below the supporting steel pipe 4, a screw rod 6 and a movable plate 8 are arranged inside the supporting steel pipe 4, a fixed bracket 7 is arranged outside the supporting steel pipe 4, a collar 301 is arranged on the top of the support 3, the supporting steel pipe 4 is connected to the collar 301 through a bearing 302, a positioning block 5, a first transmission rod 501 and a second transmission rod 502 are arranged on one side of the fixed bracket 7, a movable block 801 is arranged on the side of the movable plate 8, one end of the screw rod 6 is connected to the axis of the movable plate 8, and a turntable 602 is arranged on the other end of the screw rod 6.

[0029] Specifically, after the personnel put the pipe to be painted 1 on the outside of the supporting steel pipe 4, the position of the pipe to be painted 1 is fixed by means of multiple positioning blocks 5 that are in contact with the inner wall of the pipe to be painted 1 at the same time. At this time, the personnel can rotate the pipe to be painted 1 at a uniform speed, thereby ensuring the uniform film thickness of the paint surface. At the same time, the pipe to be painted 1 is not in direct contact with the support 3 and is fixed in mid-air. Compared with the traditional method of directly placing the pipe to be painted 1 on the support 3 for spraying, the support 3 itself will not block the surface of the pipe to be painted 1, thereby avoiding the occurrence of gaps in local areas of the paint surface, and further improving the efficiency of the painting operation.

[0030] The two ends of the first transmission rod 501 are respectively connected to the fixed bracket 7 and the positioning block 5 axis, the two ends of the second transmission rod 502 are respectively connected to the moving block 801 and the positioning block 5 axis, the positioning block 5 contacts the inner wall of the pipe 1 to be painted, the fixed bracket 7 is sleeved on the supporting steel pipe 4, the side of the supporting steel pipe 4 is provided with a first through groove 402, the side of the fixed bracket 7 is provided with a second through groove 701, one end of the moving block 801 is connected to the moving plate 8, and the other end of the moving block 801 extends outward and passes through the first through groove 402 and the second through groove 701 in sequence, both ends of the supporting steel pipe 4 are provided with a limiting seat 401, one end of the screw rod 6 passes through the limiting seat 401 and extends to the inside of the supporting steel pipe 4, and the screw rod 6 is threadedly connected to the limiting seat 401.

[0031] Specifically, when it is necessary to fix the position of the pipe 1 to be painted, two operators stand at the two ends of the supporting steel pipe 4 and rotate the turntable 602, so that one end of the screw rod 6 moves toward the inside of the supporting steel pipe 4, and then the moving block 801 moves inside the second through groove 701, until the four positioning blocks 5 contact the inner wall of the pipe 1 to be painted from four directions at the same time. At this time, the first transmission rod 501 and the second transmission rod 502 are in a folded state, and the position of the pipe 1 to be painted is fixed, thereby avoiding the problem of shaking of the pipe 1 to be painted that affects the normal progress of the painting operation, and further improving the efficiency and quality of the painting operation.

[0032] A gauze cover bracket 2 is arranged on the outside of the pipe 1 to be painted, and a dustproof gauze cover is arranged on the gauze cover bracket 2. A pulley 201 is arranged at the lower end of the gauze cover bracket 2. At least two supports 3 are arranged, and the two supports 3 are symmetrically arranged at both ends of the supporting steel pipe 4. The supports 3 are composed of multiple 40mm×40mm square steel pipes welded together. When the specifications of the supporting steel pipe 4 are larger, it is necessary to appropriately use a larger square steel pipe.

[0033] Specifically, when the painting operation is completed, the mesh cover bracket 2 is pushed to the outside of the pipe 1 to be painted, and the dust-proof mesh cover is fixed on the mesh cover bracket 2, ensuring that the paint surface will not be contaminated by dust during the drying process, further improving the glossiness and service life of the paint surface.

[0034] A pipeline painting method is implemented based on a pipeline painting protection device, characterized in that it includes the following steps:

[0035] Step 1: Clean the site and keep the working environment clean. Operators must wear protective equipment, including masks, gas masks and gloves, to prevent operators from inhaling toxic gases. If the amount of paint sprayed is large or the operation is continuous, the waste paint needs to be processed;

[0036] Step 2: Derust and polish the pipe 1 to be painted to ensure that there is no rust or attachment on the surface of the pipe 1 to be painted, and place the pipe 1 to be painted outside the supporting steel pipe 4;

[0037] Step 3: Two personnel stand at the two ends of the supporting steel pipe 4 respectively, and rotate the turntable 602 at the same time, so that one end of the screw rod 6 moves toward the inside of the supporting steel pipe 4, and then the moving block 801 moves inside the second through groove 701, until the four positioning blocks 5 are in contact with the inner wall of the pipe 1 to be painted, thereby fixing the position of the pipe 1 to be painted;

[0038] Step 4: Rotate the pipe 1 to be painted at a constant speed, and the operator holds a spray gun to spray paint on its surface, wherein the spray gun outlet needs to be 15 cm to 20 cm away from the surface of the pipe 1 to be painted, and the paint needs to be sprayed from top to bottom in sequence to avoid missing any surface, and the painting process is kept coherent until the surface of the pipe 1 to be painted is completely painted;

[0039] Step 5: After the painting operation is completed, push the screen cover bracket 2 to the outside of the pipeline 1 to be painted, and fix the dust screen cover on the screen cover bracket 2. The dust screen cover should completely cover the entire pipeline 1 to be painted, and keep the site well ventilated;

[0040] Step 6: After the paint surface of the painted pipe 1 is dry, the operator uses a paint film thickness gauge to check the paint film thickness. If it is unqualified, touch-up paint is required until it meets the acceptance requirements.

[0041] Working principle: personnel fix the position of the pipe to be painted 1 through multiple positioning blocks 5. At this time, personnel can rotate the pipe to be painted 1 at a uniform speed, thereby ensuring the uniform film thickness of the paint surface. At the same time, the pipe to be painted 1 is not in direct contact with the support 3 and is fixed in mid-air. Compared with the traditional method of directly placing the pipe to be painted 1 on the support 3 for spraying, the support 3 itself will not block the surface of the pipe to be painted 1, thereby avoiding the occurrence of gaps in local areas of the paint surface and improving the efficiency of the painting operation. When the painting operation is completed, the dust-proof mesh cover completely covers the entire pipe to be painted 1, ensuring that the paint surface will not be contaminated by dust during the drying process, thereby improving the gloss and service life of the paint surface.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline paint protection device, comprising a pipeline to be painted (1), characterized in that: The invention also comprises a supporting steel pipe (4), wherein the supporting steel pipe (4) is located inside the pipeline (1) to be sprayed with paint, a support (3) is arranged below the supporting steel pipe (4), a screw rod (6) and a movable plate (8) are arranged inside the supporting steel pipe (4), a fixed bracket (7) is arranged outside the supporting steel pipe (4), a sleeve ring (301) is arranged on the top of the support (3), the supporting steel pipe (4) and the sleeve ring (301) are connected through a bearing (302), a positioning block (5), a first transmission rod (501) and a second transmission rod (502) are arranged on one side of the fixed bracket (7), a movable block (801) is arranged on the side of the movable plate (8), one end of the screw rod (6) is connected to the shaft of the movable plate (8), and a rotating disk (602) is arranged on the other end of the screw rod (6).

2. A pipeline paint protection device according to claim 1, characterized in that: The two ends of the first transmission rod (501) are respectively connected to the fixed bracket (7) and the positioning block (5) axis, and the two ends of the second transmission rod (502) are respectively connected to the moving block (801) and the positioning block (5) axis, and the positioning block (5) is in contact with the inner wall of the pipe (1) to be painted.

3. A pipeline paint protection device according to claim 1, characterized in that: The fixed bracket (7) is sleeved on the supporting steel pipe (4), a first through slot (402) is provided on the side of the supporting steel pipe (4), a second through slot (701) is provided on the side of the fixed bracket (7), one end of the moving block (801) is connected to the moving plate (8), and the other end of the moving block (801) extends outward and passes through the first through slot (402) and the second through slot (701) in sequence.

4. A pipeline paint protection device according to claim 1, characterized in that: Both ends of the support steel pipe (4) are provided with limit seats (401), one end of the screw rod (6) passes through the limit seat (401) and extends to the inside of the support steel pipe (4), and the screw rod (6) is threadedly connected to the limit seat (401).

5. A pipeline paint protection device according to claim 1, characterized in that: A gauze cover bracket (2) is arranged outside the pipe (1) to be painted, a dustproof gauze cover is arranged on the gauze cover bracket (2), a pulley (201) is arranged at the lower end of the gauze cover bracket (2), at least two supports (3) are arranged symmetrically at the two ends of the supporting steel pipe (4), and the supports (3) are composed of a plurality of square steel pipes welded together.

6. A pipeline painting method, implemented based on a pipeline painting protection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Clean the site, keep the working environment clean, and operators must wear protective equipment; Step 2: Derusting and polishing the pipe (1) to be painted to ensure that there is no rust or impurities on the surface of the pipe (1) to be painted, and placing the pipe (1) to be painted outside the supporting steel pipe (4); Step 3: Rotate the turntable (602) so that one end of the screw rod (6) moves toward the inside of the supporting steel pipe (4), thereby causing the moving block (801) to move inside the second through groove (701) until all four positioning blocks (5) contact the inner wall of the pipe to be painted (1), thereby fixing the position of the pipe to be painted (1); Step 4: The pipe to be painted (1) is rotated at a constant speed, and an operator uses a spray gun to spray paint on its surface; Step 5: After the painting operation is completed, push the screen cover bracket (2) to the outside of the pipe to be painted (1), and fix the dust screen cover on the screen cover bracket (2). The dust screen cover should completely cover the entire pipe to be painted (1), and at the same time, keep the site well ventilated; Step 6: After the paint surface of the painted pipe (1) is dry, the operator uses a paint film thickness gauge to check the paint film thickness. If the paint surface is unqualified, repainting is required until the paint surface meets the acceptance requirements.

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