Paint spraying device for inner wall of ventilating duct

Abstract

The invention discloses a paint spraying device for the inner wall of a ventilating duct. The device comprises a workbench and the ventilating duct, the upper end of the workbench is fixedly connected with a vertical rod, the side wall of the vertical rod is rotatably connected with a rotating rod, the side wall of the rotating rod is fixedly connected with a nozzle, and the rotating rod is provided with a cleaning mechanism. The cleaning mechanism comprises two hollow rods symmetrically and fixedly connected to the side wall of the rotating rod, the inner walls of the hollow rods are slidably connected with sliding rods, the upper ends of the sliding rods are fixedly connected with arc-shaped scraping plates, dust suction grooves are formed in the arc-shaped scraping plates, dust suction holes are formed in the side walls of the dust suction grooves, and impurity discharging pipes are fixedly connected to the side walls of the arc-shaped scraping plates. Dust and rust on the inner wall of the ventilating duct are scraped away through the arc-shaped scraping plates, cold air generated by a vortex tube can rapidly flow in the dust suction grooves, negative pressure can be generated in the dust suction grooves, then the dust and rust scraped away by the arc-shaped scraping plates are sucked into the dust suction grooves to be discharged, the scraped dust and rust are prevented from falling on the inner wall of the ventilating duct, and the adhesion of the paint is prevented from being affected.

Description

technical field [0001] The invention relates to the technical field of pipe painting, in particular to a painting device for the inner wall of a ventilation pipe. Background technique [0002] Ventilation pipes are metal or composite pipes used in ventilation and air-conditioning engineering of industrial and civil buildings. It is a municipal infrastructure for air circulation and reducing the concentration of harmful gases. Ventilation ducts are painted for protection. [0003] The existing paint spraying device for the inner wall of the ventilation duct lacks a cleaning mechanism, and it is impossible to clean the dust and rust on the inner wall of the ventilation duct before painting the inner wall of the ventilation duct. The dust and rust will affect the uniformity and adhesion of the sprayed paint, making the sprayed paint The uniformity and adhesion are relatively poor, and the protection of the inner wall of the ventilation duct is poor. In addition, the existing p...

AI Technical Summary

Problems solved by technology

[0003] The existing paint spraying device for the inner wall of the ventilation duct lacks a cleaning mechanism, and it is impossible to clean the dust and rust on the inner wall of the ventilation duct before painting the inner wall of the ventilation duct. The dust and rust will affect the uniformity and adhesion of the sprayed paint, making the sprayed paint The uniformity and adhesion are relatively poor, and the protection of the inner wall of the ventilation duct is poor. In addition, the existing paint spraying device for the inner wall of the ventilation duct lacks a drying mechanism, and the paint cannot be dried while spraying. Most of the paint on the inner wall of the ventilation duct is Naturally air-dried, the drying and solidification efficiency of the paint is low, which reduces the efficiency of production

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