ANTI-TECHNICAL UNLOCKING LOCK CYLINDER SET

WIPO Patent Application WO/2017/045242

A1

An anti-technical unlocking lock cylinder set, comprising a lock housing (1), a lock cylinder (2) and a spring pin assembly (3). At least one spring pin (34) of the spring pin assembly (3) consists of a main spring pin (341) and an anti-technical unlocking spring pin (342) integrally connected. The anti-technical unlocking spring pin (342) is provided with a conical slot (3421) thereon. Pin holes (23) in communication with anti-technical unlocking spring pin holes (22) are provided in the lock cylinder (2). Pins (4), hollow covers (5), and pin resetting springs (6) for resetting the pins (4) inwardly are provided in the pin holes (23). The lock housing (1) is provided with pin (4) exposing holes (13) or slots (11) for exposed ends of the pins (4) to expose when the pins (4) are exposed. Inner ends of the pins (4) are in cone-shaped, and conical ends (41) of the pins (4) can slide into the conical slots (3421). The spring force of the pin resetting spring (6) is less than that of a pin spring (32). When a correct key is inserted such that the conical ends (41) of the pins (4) fall into the conical slots (3421), upper end faces of the main spring pins (341) are flushed with the lock cylinder (2).

LI JUN (CN)
LIAO HAIQIANG (CN)

PCT/CN2015/092267

March 23, 2017

October 20, 2015

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ZHONGSHAN CITY JIXIN CORE LOCK CO LTD (CN)

E05B27/00; E05B15/14

CN204983953U	2016-01-20
CN201535095U	2010-07-28
CN203654899U	2014-06-18
CN2816258Y	2006-09-13
US7647798B1	2010-01-19
US3590615A	1971-07-06
US20100326150A1	2010-12-30
EP2500493A1	2012-09-19

GUANGZHOU YOGO PATENT & TRADEMARK AGENT CO., LTD (CN)

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