Clutch mechanism of electronic lock cylinder

Abstract

The invention discloses a clutch mechanism of an electronic lock cylinder. The clutch mechanism comprises a front handle assembly, a rear handle assembly and a lock cylinder body, wherein the rear handle assembly comprises a front spindle and a rear spindle. The front spindle and the rear spindle each comprise a front handle and a rear handle, the front spindle and the rear spindle are arranged ina synchronous rotation mode, the rear spindle sleeves the front spindle, the front spindle is internally provided with a clutch mechanism body, the clutch mechanism body includes a lock cylinder shaft and a pawl, a poke rod is eccentrically arranged at one end of the lock cylinder shaft, a through hole is provided on the side wall of one end of the front spindle, the claw is slidably disposed inthe through hole, clamping protrusions are symmetrically arranged on the two sides of the pawl, a plurality of racks are symmetrically arranged on the inner wall of the rear spindle, the clamping protrusions on one side of the rear spindle can be engaged with the racks to realize one-way driving of the rear spindle, and the poke rod drives the clamping protrusions on the other side of the claw tobe engaged with the reversing of the racks after the lock cylinder shaft rotates reversely. The clutch mechanism has the effects that locking is convenient and fast, the structure is simple, and the electric quantity is saved.

Description

technical field [0001] The invention relates to the technical field of an electronic lock cylinder, more specifically, it relates to a clutch mechanism of an electronic lock cylinder. Background technique [0002] The cost of the electronic lock cylinder is low and the installation method is similar to the current mechanical lock cylinder, which has attracted widespread attention. However, the internal mechanical structure of the electronic lock cylinder is very compact, and the internal space is difficult to accommodate the structural components required for both mechanical and electronic unlocking. Therefore, existing products are basically single-function electronic lock cylinders, omitting the mechanical unlocking function, and mainly based on electronically driven electronic lock cylinders. [0003] The Chinese patent with the notification number CN201821116556.7 discloses a clutch mechanism for an electronic lock cylinder, which includes a front handle assembly, a rear...

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent with the notification number CN201821116556.7 discloses a clutch mechanism for an electronic lock cylinder, which includes a front handle assembly, a rear handle assembly, and a lock cylinder housing. The front handle assembly includes a front handle, a front main shaft and a The clutch mechanism in the front main shaft and relative to it can move axially. The rear handle assembly includes a rear handle and a rear main shaft. The rear main shaft is sleeved on the front main shaft. At least one communicating In the through hole between the clutch mechanism and the inner wall of the rear main shaft, a clutch part is provided in the through hole, and a snap notch corresponding to the clutch part is provided on the inner wall of the rear main shaft. When the clutch mechanism moves in the axial direction, the clutch part can be driven to The movement on the outside of the through hole makes the clutch partially located in the buckle gap and partially located in the through hole to realize the linkage between the front main shaft and the rear main shaft in the direction of rotation, which has the advantage of more stable combination and separation of the front and rear handle components, but When opening the door, the structure needs to use the fingerprint to activate the clutch mechanism of the lock cylinder to unlock. When closing the door, it also needs to use the fingerprint to activate the clutch mechanism to perform normal closing and locking, which makes the closing action cumbersome and inconvenient to operate. Moreover, frequent activation of the clutch mechanism increases the power consumption of the electronic lock cylinder, and also increases the replacement frequency of the electronic door lock battery, resulting in a waste of resources

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