Title:
PUMP HEAD AND CONTAINER
Document Type and Number:
WIPO Patent Application WO/2022/127836
Kind Code:
A1
Abstract:
A pump head, comprising a piston (2) and a liquid suction channel (4), and further comprising an axial motion combination (1), an outflow channel (5), sealing components (31, 32), and a support (6). The axial motion combination (1) comprises a liquid buffer portion assembly (11) and a closed end assembly (12). The liquid buffer portion assembly (11) is connected to the closed end assembly (12), and an opening (15) is formed after the connection. The liquid buffer portion assembly (11) and the closed end assembly (12) are located on two sides of the opening (15). The internal space of the liquid buffer part assembly (11) is a liquid storage space (14), and the liquid storage space (14) is communicated with the opening (15). One end of the liquid storage space (14) is closed by the piston (2), and the other end is closed by the closed end assembly (12). Also provided is a container using the pump head. The container is simple in structure, sturdy and durable, and has less pressure drop, better sealing performance and a larger single take-out amount; contents can be quantitatively taken out, so that the contents are prevented from being oxidized and polluted; the environmental pollution is reduced. The present invention is suitable for containing daily necessities, foods and drugs.
Inventors:
CHEN ZENGXIN (CN)
LI SHENGLU (CN)
XIA JIANSONG (CN)
LI CHEN (CN)
WEI JINXIA (CN)
ZHOU CHANGCHUN (CN)
WEI HAIMING (CN)
CHEN JINGZHE (CN)
CHEN BIN (CN)
LI SHENGLU (CN)
XIA JIANSONG (CN)
LI CHEN (CN)
WEI JINXIA (CN)
ZHOU CHANGCHUN (CN)
WEI HAIMING (CN)
CHEN JINGZHE (CN)
CHEN BIN (CN)
Application Number:
PCT/CN2021/138462
Publication Date:
June 23, 2022
Filing Date:
December 15, 2021
Export Citation:
Assignee:
BEIJING RED SEA TECH CO LTD (CN)
International Classes:
B65D47/34; B05B11/00; B65D83/76; F04B9/14
Foreign References:
| CN113232999A | 2021-08-10 | |||
| CN112693737A | 2021-04-23 | |||
| CN112693738A | 2021-04-23 | |||
| CN112693736A | 2021-04-23 | |||
| CN107107085A | 2017-08-29 | |||
| CN1127680A | 1996-07-31 | |||
| CN104029926A | 2014-09-10 | |||
| US5114049A | 1992-05-19 |
Attorney, Agent or Firm:
BEIJING GENIUS ESSEN INTELLECTUAL PROPERTY OFFICE (CN)
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