Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Key stem for reminding key unplugging
The invention provides a key stem for reminding key unplugging. The problem that people forget to unplug a key after door unlocking or door locking can be solved. In the key stem, a battery is connected with a power source port of a single chip microcomputer through a switch; a movable contact of the switch is exposed out of a case of the key steam; and one I/O (input/output) port of the single chip microcomputer is connected with a sound production device. A user can unplug the key within 5 seconds; and the single chip microcomputer starts the timing after the key is completely plugged into a lock hole; if the key is not unplugged after five seconds, the condition is regarded to be the key unplugging forgetting condition of the user, and the sound producing equipment gives an alarm to remind the user of unplugging the key. Therefore when the user forgets to unplug the key, the reminding can be realized; the potential safety hazards due to key unplugging forgetting can be eliminated; the structure is simple; and practicability and convenience are realized.
Key stem for reminding key unplugging
The invention provides a key stem for reminding key unplugging. The problem that people forget to unplug a key after door unlocking or door locking can be solved. In the key stem, a battery is connected with a power source port of a single chip microcomputer through a switch; a movable contact of the switch is exposed out of a case of the key steam; and one I/O (input/output) port of the single chip microcomputer is connected with a sound production device. A user can unplug the key within 5 seconds; and the single chip microcomputer starts the timing after the key is completely plugged into a lock hole; if the key is not unplugged after five seconds, the condition is regarded to be the key unplugging forgetting condition of the user, and the sound producing equipment gives an alarm to remind the user of unplugging the key. Therefore when the user forgets to unplug the key, the reminding can be realized; the potential safety hazards due to key unplugging forgetting can be eliminated; the structure is simple; and practicability and convenience are realized.
Key stem for reminding key unplugging
PANG XIAOFEI (Autor:in) / HAN ZHIJING (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
E05B
LOCKS
,
Schlösser
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