| 摘要 |
<p>The present invention relates to an improved pressure adjusting device for controlling the flow rate of liquid gases, which comprises a body (1) consisting of a top half shell (3) and a bottom half shell (2), coupled to one another through the interposition of a resilient membrane (4) which defines a gas pressure control chamber (6) and a gas pressure reducing and delivery chamber (5), communicating with a gas delivery outlet. The bottom half shell (2) defines a cylindrical end piece (7) which can be coupled to the valve (8) of the gas pressure vessel (9). The main feature of the invention is that there are provided quick coupling means (10), operating between the end piece (7) and the valve (8), which are adapted to operatively engage with the operating knob (13) of the valve means of the adjusting device for preventing the adjusting device from improperly engaging with or disengaging from the gas pressure vessel (9) as the mentioned valve means are in their opening position.</p> |
