Patent Application
20160175862
The present invention relates to an environmentally friendly low-pressure spray apparatus, wherein the main advantage is to use a low wattage and low pressure electromagnetic diaphragm pump, which can be driven by very low AC power or portable with DC battery, producing a lot of air passing through a large-caliber hose to a spray gun for transporting the paint or coating, being rapidly and efficiently coated on the wall or other objects, that obtains improvement.
It is known that conventional compressor painting spray equipment usually use at least 3 Hp (2200 W) piston-type high pressure air compressors as spraying power source. When used, the compressor painting spray equipment will produce a great noise and that is quite uncomfortable. And because of its spraying operations being usually higher than 30-50 psi as the discharge pressure is very large, while its use of the connecting tube having a diameter always no greater than 0.6 cm, the spray paint or coating hit the wall at the time that usually a large portion will rebound. It will cause so much mist in the spraying workplace, easily inhaled and cause harm to the human body, while resulting in excessive loss of paint or coating. So those should be improved.
The present invention provides an environmentally friendly, low noise, low power (wattage is not higher than 400W), and low-pressure spray apparatus, including a low-voltage electromagnetic diaphragm pump, combined with a large-diameter connecting hose, and then in combination with a special low pressure spray gun. The apparatus utilizes a low power and low pressure pump, which produces large amounts of air through the connecting tube and transported to the special low pressure spray gun, that the paint or coating are capable of being quickly and efficiently atomized and coated on a wall or other items. It can reduce the loss of paint or coating rebound, and reduces air and noise pollution, that is attainable and practical progress.
Now, accompanying with drawings, the character and structure of the present invention will be disclosed as following.
Referring to
When in use, the present invention utilized of low wattage pump (1) based of low AC power or portable DC battery, low-pressure electromagnetic diaphragm, can produce large amounts of air, and does not issue so big noise as conventional high-pressure piston-type compressor, but actually measured by the number of decibels is not more than 55 dB(A), much lower than a conventional air compressor noise over 100 dB(A). A lot of air through the large-diameter connection hose (2) to the special low pressure spray gun (3) can be effectively atomized paint or coating with the time, is able to be quickly and efficiently coated on a wall or other article. And due to the low discharge air pressure of the invention is no more than about 2-3 psi, most of the paint or coating will be completely attached with the wall or article thereof that can help to reduce the loss of painting material. Hence, the present invention can really reduce the consumption and waste of power and noise pollution, and can reduce bounce waste paint or coating, and to overcome the lack of conventional compressor painting kits. It is therefore attainable creative and progressive for allowance of patent.
Therefore, the present invention obviously obtains improvement and facilitates. And it is to be understood that any modified design according to the merit of the present invention will be still claimed in this application.
