Device for continuously supplying compressed air from a portable container to a pneumatic tool by greatly reducing pressure of compressed air and then precisely adjusting same

摘要

A two stage pressure regulating device is disclosed. The device is adapted to supply compressed air from a portable container having a pressure of about 150 kg/cm² to a pneumatic tool by first greatly reducing pressure of compressed air in the container to about 13 kg/cm² through a pressure-reducing unit and then precisely adjusting same in a low pressure range of about 1-10 kg/cm² through a fine pressure adjustment unit which is in fluid communication with the pneumatic tool, whereby a user is able to continuously safely operate the pneumatic tool.