Height-adjustable pipe inner wall spraying equipment

Abstract

The invention discloses height-adjustable pipe inner wall spraying equipment and belongs to the field of spraying equipment. The height-adjustable pipe inner wall spraying equipment comprises a spraying head, a spraying pipe, a height adjusting device and a walking device, wherein the spraying head is mounted at one end of the spraying pipe and is communicated with the spraying pipe; the height adjusting device comprises a support rod, a connecting bushing and an adjusting screw; the connecting bushing is hollow inside and the side wall of the connecting bushing is provided with a thread hole; one end of the support rod extends into the connecting bushing; the adjusting screw extends into the connecting bushing via the thread hole for propping the support rod on the inner wall of the connecting bushing, and the other end of the support rod is fixedly connected to the part, near the spraying head, of the spraying pipe, and is perpendicular to the spraying pipe; the walking device is mounted at the bottom of the height adjusting device and can drive the spraying pipe to move in the axial direction of a pipe. The spraying equipment has the advantages of stable and reliable operation, good spraying effect, high efficiency and low cost and is suitable for inner walls of various small-diameter pipes, in particular for the inner walls of ultralong small-diameter pipes.

Description

technical field [0001] The invention relates to a spraying equipment, in particular to a height-adjustable pipeline inner wall spraying equipment. Background technique [0002] Metal pipes are tools for transmitting liquids or gases, and are widely used in various fields of the national economy. However, the inner and outer walls of the pipes are inevitably in contact with various media, so the inner walls of the pipes are easily corroded by various media or Adhesion affects the surface quality of the inner wall of the pipe and greatly shortens the service life of the material. Especially the inner wall of metal water pipes is more susceptible to corrosion than ordinary pipes due to long-term immersion in water. According to a survey, 80% of metal pipes will rust or leak due to rust within 10 years. However, the general galvanized pipes begin to appear white rust after about 1 year of use, and most of them will undergo pitting corrosion after about 3 years, which has a grea...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the spraying device in the prior art that are prone to flow marks and uneven coating when spraying the inner wall of a small-diameter pipeline, especially the inner wall of a super-long small-diameter pipeline, and provides a height-adjustable The spraying equipment for the inner wall of the pipeline adopts the technical scheme of the present invention, the design is reasonable and ingenious, the manufacturing process is simple, and the production cost is low. It is suitable for spraying the inner wall of various small-diameter pipelines, especially the inner wall of super-long small-diameter pipelines. Real-time adjustment according to the diameter of the pipe, so that the nozzle is always located in the center of the pipe, ensuring uniform spraying without flow marks, and improving the surface quality of the inner wall of the pipe

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