Portable self-sealing high-pressure gas cylinder

• Main Authors: SHU KEWEN, WANG JUN, SHI DIANLONG, ZHANG YINGHUA
• Format: Patent
• Language: Chinese; English
• Published: 19.05.2023
• Subjects: BLASTING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

The utility model relates to a portable self-sealing high-pressure gas cylinder which comprises a cylinder body and an ejector pin valve assembly. The ejector pin valve assembly comprises an ejector pin valve inner seat and an ejector pin valve outer seat which are integrally connected with the bottle body; a first mounting cavity and a second mounting cavity are dug in the ejector pin valve inner seat; a first channel is also dug in the bottom of the second mounting cavity; a needle core and an elastic assembly are arranged in the second mounting cavity; a first sealing ring and a second channel are arranged on the needle core guide seat; a limiting block for opening or blocking the second channel is fixedly arranged on the needle core; the limiting block abuts against the first sealing ring. A third channel is dug in the outer seat; a retaining nut is fixedly arranged on the inner side of the third channel; a second sealing ring corresponding to the retaining nut is also arranged on the ejector pin valve in