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The invention discloses a nonelastic mechanical anti-theft lock. A back lock cylinder is completely separated from a front lock cylinder and is hidden in an invisible hole together with a connecting body. A connecting hole is formed on the front surface of the back lock cylinder and a connecting tongue pass-through hole is fixed to the back surface. A sliding rod is installed in a sliding hole on the front surface of a guide spring within the sliding hole. The sliding rod is installed in an expansion groove and the sliding hole. A shifting fork is fixed on the sliding rod through a connecting pin within the sliding groove. The fixed end of an expansion plate is fixed on the sliding rod within the expansion groove. The expansion end stands up in the lock groove to lock the front lock cylinder. The lock adopts oblique hanging direct-push unlocking, integrates mechanical interlocking, invisibility and invisible connecting together, so that the theft cannot simultaneously open the extension lock and rotate the back lock cylinder. Even the extension lock and the connecting body part are damaged by savage means, only the front lock cylinder can rotate, and the back lock cylinder does not rotate, so that the anti-theft function is completely achieved.
The invention discloses a nonelastic mechanical anti-theft lock. A back lock cylinder is completely separated from a front lock cylinder and is hidden in an invisible hole together with a connecting body. A connecting hole is formed on the front surface of the back lock cylinder and a connecting tongue pass-through hole is fixed to the back surface. A sliding rod is installed in a sliding hole on the front surface of a guide spring within the sliding hole. The sliding rod is installed in an expansion groove and the sliding hole. A shifting fork is fixed on the sliding rod through a connecting pin within the sliding groove. The fixed end of an expansion plate is fixed on the sliding rod within the expansion groove. The expansion end stands up in the lock groove to lock the front lock cylinder. The lock adopts oblique hanging direct-push unlocking, integrates mechanical interlocking, invisibility and invisible connecting together, so that the theft cannot simultaneously open the extension lock and rotate the back lock cylinder. Even the extension lock and the connecting body part are damaged by savage means, only the front lock cylinder can rotate, and the back lock cylinder does not rotate, so that the anti-theft function is completely achieved.
Nonelastic mechanical anti-theft lock
XU HAOZHONG (author)
2015-04-08
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser