Blocking structure of anti-fire door lock
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United States of America Patent
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May 29, 2018
Issued Date -
N/A
app pub date -
Feb 26, 2015
filing date -
Nov 20, 2014
priority date (Note) -
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Abstract
A blocking structure of an anti-fire door lock includes a latch set, a blocking pin set and a blocking base, wherein the latch set comprises a lock base and a latch that pivotally connected to the lock base. The blocking pin set disposed in an accommodating hole of the latch comprises a blocking pin and an elastic member, and the blocking base comprises a constraining slot. The elastic member is used for pushing the blocking pin to move and making the blocking pin to lodge into the constraining slot to prevent an anti-fire door from being opened.
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