| 摘要 |
PURPOSE:To facilitate flow regulation by enabling the effective area of a gas nozzle hole to be regulated by opening and closing a cock irrespective of opening and closing area of a gas flow hole in the cock. CONSTITUTION:An end 9-1 of a gas flow regulating rod 9 provided in a gas nozzle 8 is adapted to contact a nozzle hole 15 while a rod moving arm 17 inserted in a rod head 16 is formed to extend to an arm operating piece 21 inserted in a cock shaft 23. When a knob 31 is turned right the cock shaft 23 is rotated to rotate the arm operating piece 21 so that the gas flow regulating rod 9 approaches the nozzle hole 15 and a gap t1 in the end 9-1 is made the tap t2 to regulate the gas flow from large fire to small one. Thus, the gas flow can be easily and linearly from full-open to small fire one similarly to the operation of general gas cocks. |
