Anticorrosive direct spray gun for internal spraying of small-bore pipeline
A small-diameter, pipeline technology, used in spray devices, liquid spray devices, coatings, etc., can solve problems such as inability to complete and limit
Inactive Publication Date: 2012-11-14
YANTAI ZHENXING POLYURETHANE
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Problems solved by technology
[0002] At present, the spraying of polyurea anti-corrosion pipelines adopts hand-held spray guns, but the minimum spraying diameter of the existing hand-held spray guns can only achieve φ219mm, and the pipelines with a diameter smaller than φ219mm cannot be completed due to the limitation of the spray gun structure.
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[0024] The specific embodiments of the present invention are given below in conjunction with the accompanying drawings to further illustrate the present invention.
[0025] An anticorrosive direct spray gun for small-caliber pipelines, including a gun body composed of a gun barrel 9 in the middle, a material connecting plate 13 connected at its two ends, and a bracket 3. One end of the gun body 1 is a spray area, and the other ends are respectively It is connected with the external feeding device and air supply device through its internal feeding pipeline and air inlet channel. The gun barrel 9 also has a pneumatic actuator linked to the external air supply device through the external air supply device. Drive the internal pneumatic actuator to control the action of the gun body spray area; the gun barrel 9 includes a hollow cavity 9-1, two material passage cavities 9-3 and two air passage cavities 9- which penetrate the barrel axially. 2A, 9-2B, of which the two gas passage cavit...
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The invention relates to a spray gun, belonging to the technical field of spraying equipment structures, in particular relating to an anticorrosive direct spray gun for the internal spraying of a small-bore pipeline. The anticorrosive direct spray gun is characterized by comprising a gun body, wherein the gun body is composed of a gun tube arranged at the middle of the spray gun, material connection discs connected at the two ends of the spray gun, and a bracket; one end of the gun body is provided with a spray area, and the other end of the gun body is respectively connected with an externalmaterial supply device and an external air supply device; the interior of the gun tube is provided with a pneumatic executing component; and the external air supply device drives the pneumatic executing component to execute the operation of controlling the spray area of the gun body. By using the spray gun disclosed by the invention, the problem that the handheld spray gun in the prior art cannotcarry out internal spraying operation is solved; because a forward direct spraying operation mode is adopted, the spray gun is more suitable for the spraying of small-bore pipelines, so that the range of spray diameter of the small-bore pipeline reaches Phi 60mm-phi 219 mm; and the problem of pressure on a switch of the spray gun can be completely solved by using four boosting cylinders which areconnected in series in the gun tube, the influence on the spray gun arising from process deviation can be completely solved by using adjusting screws arranged at a rear cover in the gun tube, meanwhile, by using the adjusting screws, the adjustment on hollow spraying angles of a nozzle also can be realized.
Description
Technical field [0001] The invention relates to a spray gun, in particular to an internal spray anticorrosive direct spray gun suitable for small-caliber pipelines, and belongs to the technical field of spraying equipment structure. Background technique [0002] At present, the spraying of polyurea anticorrosive pipelines are all hand-held spray guns, but the minimum spraying diameter of the existing hand-held spray guns can only achieve φ219mm, and pipelines with a diameter less than φ219mm cannot be completed due to the limitation of the spray gun structure. Summary of the invention [0003] The purpose of the present invention is to solve the above-mentioned shortcomings of the prior art and provide a small-diameter internal spray anticorrosive direct spray gun that can be used for spraying pipelines with a diameter in the range of φ60mm-φ219mm. The spray gun is designed for small-diameter pipelines and has a reasonable structure design. , Quick and convenient to use, save time...
Claims
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IPC IPC(8): B05B13/06B05B9/047B05B15/08B05C7/02B05B15/68
Inventor 黄浩宙赵宝通
Owner YANTAI ZHENXING POLYURETHANE