Electromagnet opening device for safe deposit box or safe box

Abstract

The invention discloses an electromagnet opening device for a safe deposit box or a safe box. The electromagnet opening device for the safe deposit box or the safe box comprises a shell, a fixed iron core, a movable iron core, an electromagnetic coil, a shifting piece and a closing spring are arranged in the shell, the bottom end of the movable iron core is matched with the fixed iron core, the top end of the movable iron core is sleeved with a shaft sleeve, and the shaft sleeve extends to the outside of the shell through a through hole in the shell. The electromagnet opening device for the safe deposit box or the safe box is characterized in that a vibration sensing mechanism is further arranged in the shell and comprises an induction block and a balancing spring, the induction block is provided with a blocking end and a balancing end, the blocking end and the balancing end are located on the two sides of the movable iron core respectively, the balancing spring is arranged between the bottom of the balancing end and the shell, the bottom of the blocking end is in transmission connection with the shell through a rotating shaft, and when the induction block compresses the balancing spring through the rotation of the rotating shaft, the blocking end abuts against the bottom face of the shaft sleeve. According to the electromagnet opening device for the safe deposit box or the safe box, mistaken shrinkage of the movable iron core is prevented by adding the vibration sensing mechanism, and the situation that the safe box(the safe deposit box) is opened abnormally is prevented effectively.

Description

technical field [0001] The invention relates to an electronic lock for a safe deposit box or a safe, in particular to an electromagnet opening device for a safe deposit box or a safe. Background technique [0002] The electronic lock on the storage (safety) box usually includes a key reading device, an electromagnet opening device, and a dead bolt assembly. The key reading device is usually a password reading device or a fingerprint collection device. The electromagnet opening device is mainly an electromagnet driven by an electromagnetic coil. The electromagnet is connected with the key reading device and controlled by it. When the electromagnet opens the device In the absence of power, the electromagnet extends out to block the bolt pull plate in the bolt assembly to prevent the bolt from retracting. After the key reading device reads the key and verifies it, the electromagnet opening device is energized. The electromagnet is retracted, and the door opening knob in the de...

AI Technical Summary

Problems solved by technology

[0003] In the general electromagnet opening device, the electromagnetic coil of the electromagnet drives the moving iron core, and the spring rebound structure is used to realize the opening and closing of the lock. Since the magnetic attraction force of the electromagnet is limited and must be greater than the elastic force of the spring, the elastic force of the spring It should not be too large, and the small elastic force will cause the moving iron core in the electromagnet to be affected by the external force inertia when it is in the closed state when it encounters vibration, knocking, impact, etc., and the spring will be compressed to lose the limit effect on the bolt pull plate. , thereby opening the safekeeping (safety) box, greatly affecting the stability and safety of the safekeeping (safety) box

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