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Square shaft connecting mechanism preventing forceful unlocking
The invention provides a square shaft connecting mechanism preventing forceful unlocking. The square shaft connecting mechanism comprises a main spring bolt outer driving shaft with a square hole and a safety square shaft. The first end of the safety square shaft is suitable for being inserted into the square hole, and the second end of the safety square shaft is connected with an outer handle. The outer handle drives the safety square shaft to rotate so as to drive the main spring bolt outer driving shaft to rotate. An avoiding body is arranged in the square hole. The end face of the first end of the safety square shaft is provided with an avoiding space suitable for allowing the avoiding body to be inserted therein. According to the square shaft connecting mechanism preventing forceful unlocking, the situation that illegal unlocking is achieved when a lock body is damaged by means of forcefully rotating the outer handle is avoided, and the beneficial effect of effectively guaranteeing safety burglary prevention of a house is achieved.
Square shaft connecting mechanism preventing forceful unlocking
The invention provides a square shaft connecting mechanism preventing forceful unlocking. The square shaft connecting mechanism comprises a main spring bolt outer driving shaft with a square hole and a safety square shaft. The first end of the safety square shaft is suitable for being inserted into the square hole, and the second end of the safety square shaft is connected with an outer handle. The outer handle drives the safety square shaft to rotate so as to drive the main spring bolt outer driving shaft to rotate. An avoiding body is arranged in the square hole. The end face of the first end of the safety square shaft is provided with an avoiding space suitable for allowing the avoiding body to be inserted therein. According to the square shaft connecting mechanism preventing forceful unlocking, the situation that illegal unlocking is achieved when a lock body is damaged by means of forcefully rotating the outer handle is avoided, and the beneficial effect of effectively guaranteeing safety burglary prevention of a house is achieved.
Square shaft connecting mechanism preventing forceful unlocking
LYU CE (Autor:in) / MA ZONGXIAN (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E05B
LOCKS
,
Schlösser
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