(19)
(11) EP 4 074 621 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
30.11.2022 Bulletin 2022/48

(43) Date of publication:
19.10.2022 Bulletin 2022/42

(21) Application number: 21912341.1

(22) Date of filing: 05.02.2021
(51) International Patent Classification (IPC): 
B65D 47/34(2006.01)
A45D 34/00(2006.01)
 B05B 11/00(2006.01)
(52) Cooperative Patent Classification (CPC):
Y02W 30/80
(86) International application number:
PCT/CN2021/075514
(87) International publication number:
WO 2022/156007 (28.07.2022 Gazette 2022/30)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 22.01.2021 CN 202110088197

(71) Applicant: HCP Packaging Co., Ltd.
Suzhou, Jiangsu 215127 (CN)

(72) Inventor:
  • WU, Ming Kei
    Suzhou, Jiangsu 215127 (CN)

(74) Representative: Bryers LLP 
Bristol & Bath Science Park Dirac Crescent, Emerson's Green
Bristol, BS16 7FR
Bristol, BS16 7FR (GB)

   


(54) LIQUID PUMP


(57) The present invention discloses a liquid pump. The liquid pump at least comprises a pump body and a valve seat, the valve seat is mounted at a lower end portion of the pump body, the pump body is an integral part integrally formed by the same material, the pump body comprises a shell with a hollow pump cavity and an elastic valve plate disposed at a bottom end portion of the shell, and the elastic valve plate is provided with a valve passage, the valve seat is disposed below the elastic valve plate in a fitted manner, the valve seat comprises a valve body with a liquid flow passage, and the top of the valve body is provided with a seal structure that can be fitted with the elastic valve plate in a sealed manner. The number of whole components of the liquid pump is small, the production cost is saved, product assembly is more convenient, product durability is high, and meanwhile all components in the liquid pump are basically made of recoverable plastics and can be fully recycled.