Anti-mistaken-locking device for security door

A mistaken locking prevention device for an anti-theft door comprises a shell, a safety knob, a positioning clamping plate and a safety strip, and the safety knob, the positioning clamping plate and the safety strip are all rotationally connected to the shell; a mounting hole matched with the safety...

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Bibliographic Details
Main Author CHEN XUMING
Format Patent
LanguageChinese
English
Published 18.01.2022
Subjects
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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Summary:A mistaken locking prevention device for an anti-theft door comprises a shell, a safety knob, a positioning clamping plate and a safety strip, and the safety knob, the positioning clamping plate and the safety strip are all rotationally connected to the shell; a mounting hole matched with the safety knob is formed in the shell, the safety knob penetrates through the shell and is connected with the safety bar, the safety knob and the safety bar rotate synchronously, the positioning clamping plate is connected to the safety knob in a sleeving mode, and the positioning clamping plate and the safety knob rotate synchronously; compared with the prior art, when the door lock needs to be subjected to counter locking operation, the safety knob needs to be pressed firstly, then the positioning clamping plate can be driven to rotate, and therefore the safety strip is driven to rotate and the door lock is driven to work synchronously, a door body is prevented from being closed by mistake, better safety is achieved, mean
Bibliography:Application Number: CN202121230677U