Magnetic unlock key

Abstract

The invention discloses a magnetic-control unlocking key. The magnetic-control unlocking key comprises a key rod, an outer ring, a center shaft, a steel ball and a center shaft control mechanism. A key head is arranged at the front end of the key rod, and a center shaft assembly hole is formed in the rear portion of the key rod in the axial direction. A steel ball assembly hole is formed in the side wall of the center shaft assembly hole. The middle portion of the key rod is sleeved with the outer ring. A clamping groove is formed in the position, corresponding to the steel ball assembly hole, of the inner wall of the outer ring. The steel ball is assembled in the steel ball assembly hole. The center shaft is assembled in the center shaft assembly hole in the mode that the center shaft can move in the center shaft assembly hole in the axial direction. A steel ball temporary storage part is arranged on the center shaft. The center shaft control mechanism controls the center shaft to move between a first position and a second position. The center shaft drives the steel ball to be embedded in the clamping groove in the inner wall of the outer ring when located in the first position, and the steel ball temporary storage part is located in the steel ball assembly hole when the center shaft is located in the second position. The magnetic-control unlocking key has the characteristics of being stable in structure, reliable in function and convenient to produce and machine.

Description

technical field [0001] The invention relates to an unlocking device for a lock, in particular to a magnetically controlled unlocking key for preventing misoperation of the lock. Background technique [0002] Electric power enterprises are public utilities. With the development of economy, the society is more and more dependent on power supply, and the importance of power safety production is becoming more and more prominent. Safe and reliable power supply is directly related to the development of the national economy and the normal life of the society. Order, especially related to the life safety of the majority of workers. [0003] In the power equipment system, many devices need to be locked and controlled, and the locks can only be opened with authorization during operation, so as to prevent the operating personnel from unlocking without authorization, which will affect the safety of equipment operation. The magnetically controlled unlocking key is a device that requires...

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantage of the above-mentioned magnetically controlled unlocking key is that a spring and a limiting mechanism need to be provided at the authorized moving pin, which makes the internal structure of the unlocking lever complicated, the assembly is complicated, and the production cost is high; in addition, the upper end of the solenoid core and the authorized The groove of the moving pin is embedded or separated. When the spring of the moving pin fails, the authorized moving pin cannot be pushed out normally. At this time, the upper end of the solenoid core cannot be embedded in the groove of the authorized moving pin, and the key can be turned freely. The authorization control function of the entire key will fail and the electronic control part will be damaged at the same time

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