Magnetic lock with resilient abutting member for eliminating remanence

Abstract

The invention provides a magnetic lock with a resilient abutting member for eliminating remanence. An electromagnetic body can be assembled into the housing and receive externally-supplied electricity to generate a magnetic attraction force on a top surface thereof. The resilient abutting member has a fixing end to be fixed within the housing or the electromagnetic body, and an abutting end exposed from the housing or the top surface of the electromagnetic body. A peak of the abutting end is higher than the top surface of the electromagnetic body. When a metal member is magnetically attached to the top surface of the electromagnetic body, the metal member pressures the abutting end to deform. When the supply of electricity to the magnetic lock is cut off, the abutting end pushes the metal member through a restoring force thereof to move the metal member away from the electromagnetic body to eliminate remanence.

Description

technical field [0001] The present invention relates to a magnetic force lock, in particular to a magnetic force lock which is provided with an elastic pushing member to eliminate the phenomenon of residual magnetism. Background technique [0002] Generally speaking, in order to protect their own property safety, people usually install locks on doors, windows, cabinets, etc. to prevent other people from infringing. Because the lockset of simple mechanical structure is easier to be cracked by tools (such as: master key), therefore, in order to improve safety, people begin to adopt electronic locksets such as magnetic force lock, magnetic card lock, combination lock, wireless remote control lock. [0003] Continuing from the above, taking the magnetic lock (or electromagnetic lock) as an example, it uses the principle of electromagnetism. Here is a brief description of the application of the magnetic lock. Please refer to figure 1 As shown, the magnetic lock 11 is usually ass...

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Problems solved by technology

[0007] The inventors have found that there are still some problems with the above-mentioned mechanism for eliminating residual magnetism. First, because the pushing post 121 is in direct contact with the silicon steel sheet 111, it will cause damage to the electroplating layer on the surface of the silicon steel sheet 111 after long-term use, which in turn will lead to silicon steel sheet 111. Sheet 111 is rusted and has affected its magnetic force; In addition, because adsorption iron sheet 12 is generally made of pure iron, so its hardness is lower (softer), if offer through-hole 120 on it, will certainly cause its strength to reduce, And the thing that is prone to deformation will not only reduce the service life of the product, but also affect the attractiveness of the silicon steel sheet 111 for the adsorption iron sheet 12

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