Clutch mechanism of electromagnetic lock

Abstract

The clutch mechanism of the electromagnetic lock consists of an electromagnet assembly, a push piece connected in sequence, a push piece return spring, a movable piece, a transmission piece, a transmission piece return spring, a square bar linkage block, and a square bar. A sliding shaft and a stopper are arranged on the top end surface of the electromagnet assembly, and the stopper is fixedly connected with the sliding shaft; the movable piece is slidably sleeved on the sliding shaft; the head of the transmission part is provided with a first blind hole cavity; the pushing part The protruding part of the main body passes through the central hole of the movable piece and fits into the first blind hole cavity of the transmission part, and the square rod linkage block is movably connected with the square rod, which facilitates the replacement and folding of the square rod. The clutch mechanism is mainly used in a dual-purpose electromagnetic lock that can be opened and closed mechanically and controlled by an electric circuit.

Description

technical field [0001] The utility model relates to a clutch mechanism, more precisely a clutch mechanism of an electromagnetic lock. Background technique [0002] Chinese patent ZL01255674.2 discloses a lock core structure of an electromagnetic lock consisting of a rotating shaft, a buckle rod, an electromagnet coil, a long handle holder, and a long handle card connecting rod. The buckle rod is placed in the center hole of the electromagnet ring Inside, a spring is provided between the concave-convex groove of the shaft buckle on the left side of the electromagnet ring and the left buckle concave-convex groove of the buckle rod, and a positioning bump is arranged on the right end of the electromagnet ring, a large disc, and an anti-off piece The looper is on the positioning bump, and there is also a small disc between the large disc and the buckle rod. The right buckle concave-convex groove of the buckle rod corresponds to the handle long card connecting rod, and the handle...

AI Technical Summary

Problems solved by technology

[0003] The lock cylinder of the electromagnetic lock disclosed in this patent has complex and compact structure, which is not conducive to assembly and other deficiencies. For example, the small disc is not properly positioned, and its center and the center of the electromagnetic ring may not be concentric due to concentricity. Unified, which makes it difficult to assemble when assembling the long card connecting rod of the handle. The eccentricity with the rotating shaft causes the rotating shaft to be limited by eccentric force to a certain extent, resulting in low matching accuracy between the rotating shaft and the connected parts, and it is prone to the phenomenon that the top dead connection cannot be connected; the structure of the lock cylinder is fixed, and the compatibility is not strong and many more

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