Burglar-proof heaven and earth lock

Burglar-proof heaven and earth lock

  • CN 203,684,803 U
  • Filed: 11/27/2013
  • Issued: 07/02/2014
  • Est. Priority Date: 11/27/2013
  • Status: Active Grant
First Claim
Patent Images

1. an anti-theft lock, is characterized in that:

  • comprises lock housing, and is arranged on latch bolt assembly, tripartite'"'"'s tongue assembly in lock housing, and single square bolt assembly, pull-fork assembly, escape assembly and square bar, described square bar and pull-fork assembly match;

    Described latch bolt assembly is rested the head on spring after comprising latch bolt, oblique tongue rod, latch bolt spring, latch bolt plectrum and latch bolt, described latch bolt is arranged on oblique tongue rod one end, described latch bolt plectrum is arranged near oblique tongue rod other end place, after described latch bolt spring and latch bolt, resting the head on spring is all set on oblique tongue rod, described latch bolt spring is arranged on latch bolt plectrum one side, rests the head on spring and be arranged on latch bolt plectrum opposite side after latch bolt;

    Described tripartite'"'"'s tongue assembly comprise tripartite'"'"'s tongue, plectrum, clamp and on put forward escape linkage piece, described clamp is arranged on tripartite'"'"'s tongue lower face, described plectrum is arranged on tripartite'"'"'s tongue upper face medium position, above carries escape linkage piece lower end and is flexibly connected with plectrum;

    Described single square bolt assembly comprises that single square bolt and single square bolt dial peach, and described single square bolt and single square bolt are dialled peach and matched;

    Described escape assembly comprises escape pulling-on piece, arm-tie, single square bolt escape plectrum and single square bolt escape pulling-on piece;

    Described pull-fork assembly comprises lower plectrum, sets aside peach, in dial peach, above dial peach and upper plectrum;

    Described lower plectrum, set aside peach, in dial peach, above dial peach and be connected successively from the bottom to top with upper plectrum;

    Described single square bolt is dialled peach and is connected by single square bolt pulling-on piece and the single square bolt escape plectrum of escaping, described single square bolt escape plectrum is buckled in arm-tie one end, the arm-tie other end is connected with escape pulling-on piece, described escape pulling-on piece with set aside peach and interlock, described upper plectrum and latch bolt plectrum are connected, and carry escape linkage piece upper end on described and match with lower plectrum.

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