Externally controlled inversely door lock opening method and apparatus therefor

Externally controlled inversely door lock opening method and apparatus therefor

  • CN 1,730,882 A
  • Filed: 08/30/2005
  • Published: 02/08/2006
  • Est. Priority Date: 08/30/2005
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of external control falls door lock opening method, it is characterized in that being equipped with on the door leaf lock core hole towards indoor door lock, key guide runner box is positioned at lock core hole front upper place, the outside and is fixed on the door lock housing, the V-type spring clip that locating support plate and opening are aimed at lock core hole is installed in key guide runner box below, the external control action bars that links to each other with the V-type spring clip passes door lock housing and door leaf and exposes outdoors, have the key of aiming at key guide runner box to send into the hole on the door leaf external surface, the step of unblanking is as follows:

  • A, fall to take key key to be inserted in the guide runner box through sending into the hole with two fingers;

    B, under the guide runner box, slide on the locating support plate and the shank of the key when falling in the middle of the V-type spring clip opening when key, toward pulling out the external control action bars outdoors, clamp and promote the shank of the key, make in the key insertion lock core hole by the V-type spring clip with hand;

    C, twist the external control action bars, drive key deflection by the V-type spring clip, door-lock opening with hand.

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