Hand-operated opening device used for permanent magnetic mechanism

2014 
The invention provides a hand-operated opening device used for a permanent magnetic mechanism. The hand-operated opening device comprises a fixed installation portion and an operation control portion, wherein the permanent magnetic mechanism is fixedly arranged on the fixed installation portion, the operation control portion is arranged on the fixed installation portion, the operation control portion is matched with the tail end of a movable main shaft of the permanent magnetic mechanism, and the operation control portion is provided with a first working position where the movable main shaft is switched on, and a second working position where opening is conducted on the movable main shaft. When the hand-operated opening device is applied, emergency opening can be achieved for a brake controlled by the permanent magnetic mechanism, and therefore safety of an electric system is ensured; it is ensured that the hand-operated opening speed is stable and operation is reliable, and the hand-operated opening device has the advantage that the motion is clear; in addition, the hand-operated opening device further has the advantages of being simple in structure, small in size, small in manual operation external force, and the like.
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