Title:
AIR BAG AIR-INFLATING AND AIR-PUMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/189199
Kind Code:
A1
Abstract:
An air bag air-inflating and air-pumping device, comprising an air bag and air valve unit, an air pump unit, and an air inflating and air pumping switching valve unit. The air bag and air valve unit is connected to the air inflating and air pumping switching valve unit; the air inflating and air pumping switching valve unit is connected to the air pump unit; the air bag and air valve unit comprises an air bag and air valve set, the air bag and air valve set comprises an air bag (12) and one or two air valves (16); the air pump unit comprises an air inlet and an air outlet for providing power for air inflating and air pumping; and the air inflating and air pumping switching valve unit comprises three-way valve(s). The air bag air-inflating and air-pumping device uses a ready-made air pump to reversely pump an air bag, and compared with natural deflation, the deflation speed of the air bag is higher and constant, and the advantage that the deflation speed is not affected by external factors is achieved; moreover, according to the air bag air-inflating and air-pumping device, air inflating and air pumping share the air pump, and thus the cost and structural space are greatly saved.
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Inventors:
SUN CHENGJUN (CN)
LIU ZHONG (CN)
LU KUNTAO (CN)
LE YONG (CN)
LIU ZHONG (CN)
LU KUNTAO (CN)
LE YONG (CN)
Application Number:
PCT/CN2020/080703
Publication Date:
September 30, 2021
Filing Date:
March 23, 2020
Export Citation:
Assignee:
SHENZHEN ONETHIRD SLEEP TECH CO LTD (CN)
International Classes:
F17C5/06; F04B41/06; F04B49/22; F17C7/00; F17D1/02
Domestic Patent References:
| WO2018217594A1 | 2018-11-29 |
Foreign References:
| CN106691049A | 2017-05-24 | |||
| CN204467629U | 2015-07-15 | |||
| CN204520089U | 2015-08-05 | |||
| US5938208A | 1999-08-17 |
Other References:
See also references of EP 4130542A4
Attorney, Agent or Firm:
PRECISE INTELLECTUAL PROPERTY FIRM (CN)
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