A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an anti-theft door lock with an inclined tongue. The anti-theft door lock comprises a face plate, a shell, a buckle plate, a key, the inclined tongue, an inclined tongue carriage, a twisting device, a stroke and axial limiting device and a safety locking device. The twisting device comprises a rotary knob spring, a rotary knob arranged on the periphery of the rotary knob spring in a sleeving manner, a lock cylinder arranged in the center of the rotary knob spring and a transmission plate, and the rotary knob spring and the inclined tongue carriage are connected through the transmission plate. The stroke and axial limiting device comprises a stroke limiting groove, a limiting block and a limiting torsional spring, wherein the stroke limiting groove is formed in one side of the inclined tongue carriage, one end of the limiting block is located in the stroke limiting groove, and the other end of the limiting block is attached to the limiting torsional spring. The safety protection device comprises a sliding block fixedly connected with the inclined tongue carriage and a stirring block arranged at the bottom of the sliding block. The other end of the sliding block is connected with the lock cylinder. After the structure is adopted, the radial movement stroke of the inclined tongue can be limited, the inclined tongue is pressed and locked in the axial direction, back locking can be achieved outdoors without the key, and use is convenient.
The invention discloses an anti-theft door lock with an inclined tongue. The anti-theft door lock comprises a face plate, a shell, a buckle plate, a key, the inclined tongue, an inclined tongue carriage, a twisting device, a stroke and axial limiting device and a safety locking device. The twisting device comprises a rotary knob spring, a rotary knob arranged on the periphery of the rotary knob spring in a sleeving manner, a lock cylinder arranged in the center of the rotary knob spring and a transmission plate, and the rotary knob spring and the inclined tongue carriage are connected through the transmission plate. The stroke and axial limiting device comprises a stroke limiting groove, a limiting block and a limiting torsional spring, wherein the stroke limiting groove is formed in one side of the inclined tongue carriage, one end of the limiting block is located in the stroke limiting groove, and the other end of the limiting block is attached to the limiting torsional spring. The safety protection device comprises a sliding block fixedly connected with the inclined tongue carriage and a stirring block arranged at the bottom of the sliding block. The other end of the sliding block is connected with the lock cylinder. After the structure is adopted, the radial movement stroke of the inclined tongue can be limited, the inclined tongue is pressed and locked in the axial direction, back locking can be achieved outdoors without the key, and use is convenient.
Anti-theft door lock with inclined tongue
YANG HERONG (author)
2016-01-06
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser