A paint spraying device for the inner wall of a ventilation duct

Abstract

The invention discloses a paint spraying device for the inner wall of a ventilation duct, which comprises a workbench and a ventilation duct. The upper end of the workbench is fixedly connected with a vertical rod, and the side wall of the vertical rod is rotatably connected with a rotating rod, and the side wall of the rotating rod is fixedly connected There is a spray head, and a cleaning mechanism is installed on the rotating rod. The cleaning mechanism includes two hollow rods symmetrically and fixedly connected to the side wall of the rotating rod. The inner wall of the hollow rod is slidingly connected to a sliding rod, and the upper end of the sliding rod is fixedly connected to There is an arc-shaped scraper, and a dust-absorbing groove is opened inside the arc-shaped scraper, and a dust-absorbing hole is opened on the side wall of the dust-absorbing groove, and a miscellaneous discharge pipe is fixedly connected to the side wall of the arc-shaped scraper. The arc-shaped scraper in the present invention scrapes off the dust and rust on the inner wall of the ventilation duct, and the cold air generated by the vortex tube will flow rapidly in the dust-absorbing groove, which will cause negative pressure in the dust-absorbing groove, and then scrape the arc-shaped scraper The removed dust and rust are sucked into the dust suction tank and discharged, so as to prevent the scraped dust and rust from falling on the inner wall of the ventilation duct, which will affect the adhesion of the paint.

Description

Technical field [0001] The present invention relates to a technical field spray pipe, particularly to a ventilation pipe wall spraying device. Background technique [0002] Ventilation ducts in civil and industrial ventilation and air conditioning of metal or composite pipe, for air circulation, decrease one municipal infrastructure concentration of harmful gases, in order to increase the water resistance and corrosion resistance of the ventilation duct, so the need for ventilation pipes paint protection. [0003] Existing ventilation pipe wall spraying device lacking a cleaning mechanism, not in front of the inner wall of the ventilation duct ventilation pipe wall paint dust and rust and uniform adhesion of cleaning, rust and dirt affect the spray paint, such a paint spray degree of uniformity and relatively poor adhesion, poor and further the ventilation of the protective pipe wall, further, the conventional apparatus lacks ventilation pipe wall spray drying mechanism for dryin...

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

Images