Title:
PUMP VALVE MODULE AND OPERATING METHOD THEREFOR, MASSAGE SOLENOID VALVE PUMP VALVE MODULE FOR CAR SEAT, AND CAR SEAT
Document Type and Number:
WIPO Patent Application WO/2021/093405
Kind Code:
A1
Abstract:
A pump valve module and an operating method therefor, a massage solenoid valve pump valve module for a car seat, and a car seat. A composite solenoid valve (40) in the pump valve module comprises a deflation solenoid valve (401) and an inflation solenoid valve (402) which are connected in series and formed by integral injection molding; a first part area (415) of the inflation solenoid valve (402) is connected to an air source; a second part area (417) of the deflation solenoid valve (401) is connected to a bag to be inflated; a second part area (417) of the inflation solenoid valve (402) is connected to a first part area (415) of the deflation solenoid valve (401); when the inflation solenoid valve (402) is powered on and the deflation solenoid valve (401) is powered off, inflation is implemented; when the inflation solenoid valve (402) is powered off and the deflation solenoid valve (401) is powered on, deflation is implemented by means of a third part area (418) of the deflation solenoid valve (401); the composite solenoid valve (40) is disposed on the top end of the air source to form a same structure. Multiple air bags can be controlled differentially by means of a solenoid valve module by using only one air source; moreover, an air pressure maintaining function in the air bag is further added, the structure is compact, it is easy to mount, the function is stable, and coordination of multiple sets can be achieved.
Inventors:
ZHANG HAITAO (CN)
MA KAI (CN)
MA KAI (CN)
Application Number:
PCT/CN2020/111131
Publication Date:
May 20, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
LANGFANG GOLDEN TIME TECH DEVELOPMENT CO LTD (CN)
International Classes:
F16K11/22
Domestic Patent References:
| WO1999048731A1 | 1999-09-30 |
Foreign References:
| CN108953683A | 2018-12-07 | |||
| CN110822133A | 2020-02-21 | |||
| JP3193880U | 2014-10-23 | |||
| EP3037703B1 | 2017-07-05 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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