Coded lock permanent magnet assembly locking device

Abstract

The invention relates to a coded lock permanent magnet assembly locking device. The coded lock permanent magnet assembly locking device comprises a lock core, a lock bolt, a lock core and lock bolt connecting member, a lock bolt linkage member, a cam dog, a CPU (Central Processing Unit) circuit, a key input and a display screen and is characterized in that an electromagnetic coil mutually connected with an output end of a CPU is arranged below the cam dog; a permanent magnet rod is arranged in the electromagnetic coil; a permanent magnet block is arranged at the bottom of the electromagnetic coil; the permanent magnet rod and the permanent magnet block generate forces with repellent magnetic fields to drive the permanent magnet rod to ascend; the upper end of the permanent magnet rod is in movable contact with the lower end face of the cam dog; and the upper end face of the cam dog and the rear end of the lock bolt linkage member are locked closely. According to the invention, instead of an iron rod, a strong magnetic neodymium iron boron permanent magnet block arranged at the bottom of the coil is used for supporting a spring to work so that the hidden trouble of illegal unlocking is eliminated and the safety and reliability level is increased; and a strong magnetic neodymium iron boron permanent magnet rod is adopted instead of the ordinary iron rod, so that the energy consumption is reduced, the miniaturization can be realized, working current of a working current coil can be reduced to one third less than the original working current, and then the battery service life is prolonged.

Description

technical field [0001] The invention relates to an electromechanical integrated lock, in particular to an electromechanical integrated password lock using a permanent magnet assembly as a locking device. Background technique [0002] my country updated the national standard GB10409-2001 on anti-theft safes in 2001. So far, the locks of electronic combination lock safes have not changed significantly. Locking devices for safes, safes and gun safes are now standard on every electronic safe, safe and gun safe. [0003] Shown in Fig. 1 is the structural diagram of the conventional electromagnet control unlocking of password safe on the market, Figure 1b for Figure 1a The return spring 9 enlarged and hidden under the cam block 8 includes an unlocking key 1, a mechanical lock cylinder 2, a lock tongue 3, an iron rod 4, an iron rod support spring 5, a lock cylinder lock tongue connector 6, and an electromagnet coil 7. Cam block 8, return spring 9, deadbolt linkage 10, etc. Norm...

AI Technical Summary

Problems solved by technology

[0004] The iron rod 4 is normally supported by the iron rod and the spring 5 bounces up elastically. The iron rod 4 is easily shaken up and down by external force vibration. When the iron rod shakes downward, there is a hidden danger of illegal unlocking, which affects safety. Once it loses its elasticity or is easy to get stuck and rust, it will affect the normal work

When unlocking, the magnetic field force of the electromagnetic coil must make the iron rod overcome the elastic support of the supporting spring, and consume enough energy, so that the electromagnetic coil consumes a lot of power, the working life of the battery is short, and the reliability is poor.

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