Title:
LOCK CYLINDER PROTECTION MECHANISM
Document Type and Number:
WIPO Patent Application WO/2020/199358
Kind Code:
A1
Abstract:
Provided is a lock cylinder protection mechanism, comprising a lock head housing, a lock head (9) embedded in the lock head housing, and an inner cylinder (12) sleeved outside the lock head housing; the lock head housing is fixed to the inner cylinder (12); a sleeve body (13) is disposed on the outside of the inner cylinder (12); the sleeve body (13) and the inner cylinder (12) are sleeved and fit together; one end of the sleeve body (13) is provided with a hole slot for inserting a key (1); the edge of the hole slot is formed having a restricting part (131) for preventing the lock head (9) from sliding out.
Inventors:
ZHANG CHAO (CN)
Application Number:
PCT/CN2019/091483
Publication Date:
October 08, 2020
Filing Date:
June 17, 2019
Export Citation:
Assignee:
WENZHOU TONGYONG LOCK CO LTD (CN)
International Classes:
E05B67/38; E05B67/00
Foreign References:
| CN2895635Y | 2007-05-02 | |||
| CN2895635Y | 2007-05-02 | |||
| CN102041944A | 2011-05-04 | |||
| CN109763695A | 2019-05-17 | |||
| CN201649809U | 2010-11-24 | |||
| EP2450507A2 | 2012-05-09 |
Attorney, Agent or Firm:
WENZHOU PINCHUANG PATENT AND TRADEMARK AGENCY (GENERAL PARTNERSHIP) (CN)
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