Title:
SKIN CARE TYPE EMULSION PUMP HAVING EXTERNAL SPRING
Document Type and Number:
WIPO Patent Application WO/2021/184429
Kind Code:
A1
Abstract:
A skin care type emulsion pump having an external spring, comprising a pump body (2). A pump chamber (3) is provided in the pump body (2); a bottle locking cover (4) is connected to the pump body (2); a suction assembly (5) is provided in the pump chamber (3); a locking cover (8) is provided at the upper portion of the pump chamber (3); a one-way valve (6) is provided at the lower end of the pump chamber (3); a liquid guide tube (9) which can extend into a bottle body is provided on the pump body (2) and located under the one-way valve (6); a button (7) is connected to the upper end of the suction assembly (5); the suction assembly (5) comprises an upper pump rod (51); a lower pump rod (53) which is located in the pump chamber (3) is connected to the upper pump rod (51); a liquid inlet hole (532) is formed in the lower pump rod (53); a piston (54) which can slide with respect to the lower pump rod (53) and can block or open the liquid inlet hole (532) is fitted over the lower pump rod (53); an air inlet hole (21) which can be closed or opened by the piston (54) is formed in the pump body (2); the upper pump rod (51) is provided with a push portion (512) which can downwards push the piston (54) to make the air inlet hole (21) be communicated with the outside after the pump chamber (3) is communicated with a liquid inlet channel (531); a return spring (52) is provided between the upper pump rod (51) and the locking cover (8). The emulsion pump is reasonable in structural design, convenient to assemble and good in sealing performance.
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Inventors:
LIANG PEIHUI (CN)
ZHU MAOYONG (CN)
ZHANG YONGLEI (CN)
LIANG JINKAO (CN)
ZHU MAOYONG (CN)
ZHANG YONGLEI (CN)
LIANG JINKAO (CN)
Application Number:
PCT/CN2020/082938
Publication Date:
September 23, 2021
Filing Date:
April 02, 2020
Export Citation:
Assignee:
MAJESTY PACKAGING SYSTEMS LTD (CN)
International Classes:
A45D34/00; B65D47/34
Domestic Patent References:
| WO2018182155A1 | 2018-10-04 |
Foreign References:
| CN208979437U | 2019-06-14 | |||
| CN110547582A | 2019-12-10 | |||
| CN209617898U | 2019-11-12 | |||
| KR20120083634A | 2012-07-26 |
Attorney, Agent or Firm:
ZHONGSHAN KECHUANG PATENT AGENT CO., LTD (CN)
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