Lock

Abstract

The invention relates to a lock. The lock comprises a lock body and a front panel, wherein the front panel is located on the outer side of the lock body, a lock cylinder is arranged on the front panel, a rotating core and a driving square shaft are arranged on the lock body, a square shaft hole is formed in the rotating core, the driving square shaft is inserted into the square shaft hole, the outer end of the driving square shaft protrudes from the surface of the lock body and is arranged in the front panel and is in driving connection with an unlocking structure in a front panel body, the unlocking structure is in driving connection with the lock cylinder, and the driving square shaft is fixedly connected with the front panel in an axial direction, so that the driving square shaft is pulled away from the lock body when the front panel is separated from the lock body. According to the lock, the driving square shaft is axially and fixedly connected with the front panel, so that the driving square shaft is pulled away from the lock body when the front panel is pried, the square shaft hole of the driving square shaft is immediately sealed by an elastic door, an offender cannot inserta tool into the square shaft hole, and the safety performance of the lock body is improved. The lock has the advantage of simple and reasonable structural design, and the structure of an existing lock body is not greatly transformed.

Description

technical field [0001] The present invention relates to a lock. Background technique [0002] An existing lock includes a lock body, a front panel installed on the outside of the lock body and a rear panel installed on the inside of the lock body. The front panel is provided with a lock cylinder, and a suitable key is inserted to drive the lock cylinder to rotate, and the rotation of the lock cylinder drives the unlocking structure to rotate. The rotation of the unlocking structure drives the transmission square shaft to rotate, and the rotation of the transmission square shaft drives the rotation of the rotating core to realize unlocking. At present, the key insertion port of this kind of lock cylinder is equipped with a password door or other protection devices. It is difficult for lawbreakers to unlock the lock cylinder entrance, so that the lawbreakers start to pry off the front panel, and directly open the rotating core through the transmission square shaft. To achieve...

AI Technical Summary

Problems solved by technology

Although there are also transmission square shafts when prying the front panel, the transmission square shaft leaves the lock body with the front panel, but the square shaft hole of the transmission square shaft is still open, and offenders can rotate the core with tools

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