Title:
VALVE LOCK
Document Type and Number:
WIPO Patent Application WO/2010/104318
Kind Code:
A2
Abstract:
A valve lock according to the present invention comprises: a body installed on a valve and having key holes for inserting keys; a holder mounted on the body to rotate by means of a user's operating force; a key box disposed in the body and operating by interaction with the key; and a gear assembly interposed between the holder and key box which engages with the holder during rotation of the holder for engaging / disengaging the key box according to the position of the holder. The gear assembly includes: a driving rotary gear which rotates in mutual interference with the holder; 1st and 2nd slave rotary gears engaged with the driving rotary gear; 1st and 2nd locking blocks mounted on the 1st and 2nd slave rotary gears, respectively, to selectively rotate relative to each other and to engage/disengage the key box with the rotation angle; and fastening keys for fastening the1st and 2nd locking blocks to the1st and 2nd slave rotary gears, respectively. The key box includes: a rotor which engages with the keys; a cam fixed at the rotor to rotate therewith; an actuating block operating in mutual interference with the cam, and inserted into or escapes from the holder according to position of the cam to selectively cause mutual interference with the holder; and a stopper blade mounted on the rotor to cause mutual interference with the gear assembly. The combination of the keys, the key box, and the gear assembly locks and unlocks the rotation of the holder, and the maximum rotation position of the holder in one direction and the maximum rotation position of the holder in the other direction are set via the plurality of keys, thereby setting maximum open and close position of the valve.
Inventors:
CHANG BYOUNG-EON (KR)
JUNG CHAN-BU (KR)
JUNG CHAN-BU (KR)
Application Number:
PCT/KR2010/001468
Publication Date:
September 16, 2010
Filing Date:
March 09, 2010
Export Citation:
Assignee:
GLOAZURE CO LTD (KR)
CHANG BYOUNG-EON (KR)
JUNG CHAN-BU (KR)
CHANG BYOUNG-EON (KR)
JUNG CHAN-BU (KR)
International Classes:
F16K35/10; F16K35/00; F16K35/06
Foreign References:
| US6213148B1 | 2001-04-10 | |||
| EP1380783A1 | 2004-01-14 | |||
| JPH10220636A | 1998-08-21 |
Attorney, Agent or Firm:
JEON, JONG HAG (KR)
전종학 (KR)
전종학 (KR)
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