Gear lock mechanism with anti-theft device

Abstract

The invention relates to a gear lock mechanism with an anti-theft device. The gear lock mechanism comprises a lock body and a lock tongue pulling plate, the position, below the lock tongue pulling plate, inside the lock body is provided with a driving gear and a driven gear, the driving gear is composed of an upper layer and a lower layer, the upper layer is a tooth ring, the lower layer is a linkage loop, the driving gear is provided with an insert connection slot in the axial direction, a lock core drives the driving gear to rotate through the linkage loop, the tooth ring is engaged with thedriven gear, the driven gear is eccentrically provided with two pin holes, the lock tongue pulling plate is provided with a transmission slot, a positioning seat is arranged above the lock tongue pulling plate, two eccentric pins on the positioning seat penetrate through the transmission slot and are fixedly connected with the two pin holes, the eccentric pins are in transmission coordination with the transmission slot, the lock body is internally and slidably provided with an anti-theft piece, an end portion embossment of the anti-theft piece is matched with a lock core installation hole inthe lock body, the anti-theft piece is driven by a shifting piece hinged inside the lock body, and the shifting piece bears the pressure of a torsional spring. According to the gear lock mechanism with the anti-theft device, by means of the above-mentioned design, the gear lock mechanism with the anti-theft device has the advantages of being compact in structural design, convenient and flexible tooperate and use, strong in anti-theft performance, high in reliability and long in service life.

Description

technical field [0001] The invention relates to a gear lock mechanism with an anti-theft device. Background technique [0002] Traditional gear-driven door locks have a relatively complicated assembly structure, resulting in a large lock body, laborious opening and closing operations, poor flexibility, and weak anti-theft performance. Contents of the invention [0003] In order to overcome the problems of complex structure design of the gear transmission mechanism of ordinary door locks in the prior art, resulting in large lock body, laborious opening and closing operation, poor flexibility, and weak anti-theft performance, the present invention provides a door lock with an anti-theft device. Gear lock mechanism, the gear lock mechanism with anti-theft device has compact structure design, convenient and flexible operation, strong anti-theft performance, high reliability and long service life. [0004] The technical solution adopted by the present invention to solve the te...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of complex structure design of the gear transmission mechanism of ordinary door locks in the prior art, resulting in a large lock body, laborious opening and closing operations, poor flexibility, and weak anti-theft performance, the present invention provides a door lock with an anti-theft device. Gear lock mechanism, the gear lock mechanism with anti-theft device has compact structure design, convenient and flexible operation, strong anti-theft performance, high reliability and long service life

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