Title:
GAS CARTRIDGE
Document Type and Number:
WIPO Patent Application WO/2020/199446
Kind Code:
A1
Abstract:
A gas cartridge (100), comprising: a cartridge body (10), an end of the cartridge body (10) being connected to an air outlet part (12), an air guide assembly (13) being provided inside the cartridge body (10), the air guide assembly (13) comprising an inner tube (134) and provided with an internal air passage (1340) communicating with the air outlet part (12); a linkage rod (133), sleeved axially outside the inner tube (134) movably, a chamber (1330) communicating with the internal air channel (1340) being formed between the linkage rod (133) and the inner tube (134), the linkage rod (133) and the inner wall of the cartridge body (10) forming an air guide chamber (130) communicating with the chamber (1330), the air guide chamber (130) dividing the internal space of the cartridge body (10) to form a first inlet chamber (101) and a second air inlet chamber (102), and a first air inlet passage (13110) communicating with the first air inlet chamber (101) and a second air inlet passage (13120) communicating with the second air inlet chamber (102) being formed on both sides of the air guide chamber (130) respectively; and a sealing member (132), capable of selectively sealing the first air inlet passage (13110) or the second air inlet passage (13120) when the linkage rod (133) moves axially. The linkage rod (133) may reciprocate along the axial direction of the cartridge body (10) under the action of external force, and realize double-stroke inflation during the reciprocation, thereby significantly improving the inflation efficiency of the gas cartridge.
Inventors:
XI XIAODONG (CN)
Application Number:
PCT/CN2019/099685
Publication Date:
October 08, 2020
Filing Date:
August 07, 2019
Export Citation:
Assignee:
KUNSHAN HENGXIYUAN SPORTS PRODUCTS LTD (CN)
International Classes:
F04B33/00
Foreign References:
| CN207297258U | 2018-05-01 | |||
| CN208380779U | 2019-01-15 | |||
| CN207261193U | 2018-04-20 | |||
| US5165876A | 1992-11-24 | |||
| GB223832A | 1924-10-30 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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