| 摘要 |
<p>The present invention relates to an easily assembled pressure regulator (1) of an air supply apparatus for respiratory protection. The apparatus includes: a casing (3); a pressure reducing valve (5) to interrupt a flow of a pressurized air supplied to an inside of a mask through an air intake (17) formed on one side of the casing (3); a diaphragm (7) to repeat contraction and expansion according to an exhale and inhale of a wearer, which accesses a positive pressure space (S) of the casing through a vent (19); a link assembly (9) to open and close the pressure reducing valve (5) according to the contraction and expansion of the diaphragm (7); and a valve housing (10) to enclose the pressure reducing valve (5) to support the link assembly (9), wherein the link assembly (9) includes: a drive link (11) to open and close the pressure reducing valve (5); a driving link (13) to pressurize or release the drive link (11); and a transmission link (15) to allow the drive link (11) to pressurize or release a valve body (33). Therefore, because the pressure reducing valve is opened and closed by the link assembly, an opening degree of the pressure reducing valve can be accurately and stably adjusted, and the valve housing and the link assembly can be assembled more quickly and conveniently.</p> |
