Patent ID: 9464760
Filing Date: 2016-10-11
CPC Classification: B65B,B65D,F17C

Claim Text:
1. A gas filling nozzle with safety function, including: a valve seat, the interior thereof being axially formed with a stepped seat hole composed of a top seat hole and a bottom seat hole, and the exterior thereof being formed with a combination part; a first thimble, disposed in said seat hole, and the lower portion thereof being protruded out from said bottom seat hole, the interior of said first thimble being axially formed with a stepped thimble hole composed of a top thimble hole and a bottom thimble hole, a neck part defined at the outer periphery being radially formed with a neck hole communicated with said bottom thimble hole, and when said neck hole not being in a gas filling status, said neck hole being shielded by a sealing ring which being sleeved with said neck part; a safety valve, allowing a second spring and a second thimble to be disposed in said top thimble hole, and an end cover having the top being axially formed with a penetrate hole being combined with said top thimble hole, thereby allowing the second thimble to axially and elastically retract in said top thimble hole for sealing or opening said penetrated hole; and an inner sleeve, combined in said top seat hole, and a first spring being disposed between said end cover and a sleeve hole axially formed on said inner sleeve, thereby allowing said first thimble and said safety valve disposed at the top thereof to axially and elastically retract in said sleeve hole for enabling said sealing ring to seal or open said bottom seat hole, and the outer periphery of said inner sleeve being axially and annularly formed with a plurality of guide slots communicated with said top seat hole.