VALVE CORE POSITION CONTROLLING DEVICE - SHANGHAI MOONS ELEC CO LTD

Title:

VALVE CORE POSITION CONTROLLING DEVICE

Document Type and Number:

WIPO Patent Application WO/2009/097761

Kind Code:

A1

Abstract:

A valve core position controlling device for controlling the valve core to move between a first position and a second position, includes a driving cam (3) driven by a motor (1) to output a pre-determined angle rotation, a first switch controlling assembly (5) and a second switch controlling assembly (6), the driving cam (3) is provided with a controlling profile (30) with at least one recess (31a), the first switch controlling assembly (5) includes a first returning frame (53) which can pivot about a pivot (530) and has a force receiving side (531) and a pressing side (532), a first sliding block (51) is provided at the force receiving side (531) and pushes against the controlling profile (30) of the driving cam (3) to provide a returning force for the first returning frame (53), a first metal contacting plate (54) is provided at the pressing side (532) and acts as the first returning frame (53) pivots, so as to contact with or separate from a first electricity conducting plate (55), and to select the circuit between a power source and a power input end of the motor (1). The second switch controlling assembly (6) is the same as the first switch controlling assembly (5).

Inventors:

ZHAI HOUQUAN (CN)
WANG XIAODONG (CN)
JIN QIONGHUA (CN)
LI YUNFENG (CN)

Application Number:

PCT/CN2009/070103

Publication Date:

August 13, 2009

Filing Date:

January 12, 2009

Export Citation:

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Assignee:

SHANGHAI MOONS ELEC CO LTD (CN)
ZHAI HOUQUAN (CN)
WANG XIAODONG (CN)
JIN QIONGHUA (CN)
LI YUNFENG (CN)

International Classes:

F16K31/04; F16K5/12; F16K31/52

Foreign References:

CN2625664Y	2004-07-14
CN2406113Y	2000-11-15
CN201162879Y	2008-12-10
CN2401744Y	2000-10-18
CN2416300Y	2001-01-24
JP2007315151A	2007-12-06
EP1884697A1	2008-02-06

Other References: