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Title:
BREAST PUMP DRIVING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/074059
Kind Code:
A1
Abstract:
A breast pump driving apparatus. A stepper motor (3) is mounted on a housing (1) with an opening at one end by means of a support. An output rotating shaft of the stepper motor (3) is a lead screw (5) and the stepper motor is connected to a piston by means of a lead screw nut (7). An air pipe joint (11) and a one-way valve are disposed at the other end of the housing (1) to cooperate with a chamber of the housing (1) to form different air pressure. A silencing air passage is further disposed on the support (2) to reduce working noise. According to the breast pump driving apparatus, the stepper motor (3) and a lead screw nut (7) pair are used for driving the piston to move so as to change the air pressure, the action is accurate, the suction force is stable, the flow attenuation phenomenon does not exist basically, the accurate suction force can be formed, and the use comfort is improved. Meanwhile, the breast pump driving apparatus has good working stability and low requirements for air tightness, and thus can reduce the failure rate and improve the convenience of use. Furthermore, the breast pump has extremely low working noise, and thus can reduce the influence of the working noise on a new mother and increase the use comfort.

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Inventors:
NI JINXIANG (CN)
WANG XIANWEN (CN)
LI HAOYUAN (CN)
Application Number:
PCT/CN2023/102833
Publication Date:
April 11, 2024
Filing Date:
June 27, 2023
Export Citation:
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Assignee:
GUANGDONG YOUJU ADVANCED NEW MAT CO LTD (CN)
GUANGDONG GOLDEN BABY HEALTH SUPPLIES CO LTD (CN)
International Classes:
F04B37/10; A61M1/06; F04B35/04; F04B39/00
Foreign References:
CN218598320U2023-03-10
CN115370554A2022-11-22
CN217270672U2022-08-23
CN110242537A2019-09-17
CN216518551U2022-05-13
JP2003014072A2003-01-15
US20170067455A12017-03-09
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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