Title:
LIGHTER GAS CYLINDER HAVING GOOD SEALING EFFECT
Document Type and Number:
WIPO Patent Application WO/2021/102783
Kind Code:
A1
Abstract:
A lighter gas cylinder having a good sealing effect, comprising: a body (1), which is provided with an accommodating chamber that can accommodate liquefied flammable gas; a cover (2), which is integrally injection molded, wherein an outer edge of the lower end of a hollow part is provided with a cold slug (22), the hollow part is provided with a hollow hole (21), and the hollow hole (21) comprises an upper section (211), a middle section (212), and a lower section (213); a sealing bowl (3), which is disposed in the lower section (213) of the hollow hole (21) of the cover (2); and a valve assembly (4), which is located in the hollow hole (21). The described lighter gas cylinder transfers, to the outer edge of the lower end of the hollow part of the cover, a welding mark that is originally generated in the hollow hole of the cover adjacent to the sealing bowl, the welding mark being relatively far from a sealing surface, thus the pressure-resistance strength of the gas cylinder is improved, and the sealing effect is ensured.
Inventors:
DENG WEICHENG (CN)
Application Number:
PCT/CN2019/121547
Publication Date:
June 03, 2021
Filing Date:
November 28, 2019
Export Citation:
Assignee:
WEICHENG LIGHTER MFT CO LTD (CN)
International Classes:
F23Q2/42; F17C1/00
Foreign References:
| CN86208159U | 1987-08-19 | |||
| CN1117934A | 1996-03-06 | |||
| CN87208127U | 1987-12-31 | |||
| CN201014181Y | 2008-01-30 | |||
| CN2093977U | 1992-01-22 | |||
| US3622120A | 1971-11-23 | |||
| FR1594015A | 1970-06-01 | |||
| CN1731020A | 2006-02-08 | |||
| JPH07293880A | 1995-11-10 |
Attorney, Agent or Firm:
ZHEJIANG SHINE PATENT OFFICE(GENERAL PARTNER) (CN)
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