Title:
METHOD FOR IMPROVING TECHNICALLY UNLOCKING DIFFICULTY AND ANTI-THEFT LOCK CORE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2011/044773
Kind Code:
A1
Abstract:
A method for improving technically unlocking difficulty and an anti-theft lock core structure are disclosed. The anti-theft lock core structure includes a lock core stator (10), in which a first lock core (11) and a second lock core (21) with parallel axes are provided. A key-way hole (12) and more than two parallel first ball slots (101) communicated with the key-way hole (12) and perpendicular to the axes of the lock core are provided in the first lock core (11). Second ball slots (102) and third ball slots (103) which are numerically equal to the first ball slots (101) are respectively provided in the second lock core (21) and between the first lock core (11) and the second lock core (21), and the third ball slots (103) connect the first ball slots (101) with the second ball slots (102) in a line. More than two first balls are provided in each first ball slot (101). A second ball and a third ball are respectively provided in each second ball slot (102) and each third ball slot (103). Return springs (30) against the first balls, the second ball and the third ball are provided at the side away from the key-way hole (12) of the second lock core (21). A linkage mechanism (20) is provided on the first lock core (11) and the second lock core (21).
Inventors:
TANG BIN (CN)
Application Number:
PCT/CN2010/072397
Publication Date:
April 21, 2011
Filing Date:
May 02, 2010
Export Citation:
Assignee:
TANG BIN (CN)
International Classes:
E05B63/00; E05B27/06; E05B27/08
Foreign References:
| US3990281A | 1976-11-09 | |||
| US4444034A | 1984-04-24 | |||
| US5018376A | 1991-05-28 | |||
| CN2628662Y | 2004-07-28 | |||
| CN201184075Y | 2009-01-21 |
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