| 摘要 |
<p>A door strike comprising: a body; a retaining means for retaining a latch bolt, the retaining means being movable with respect to the body between a latch bolt retaining position and a latch bolt releasing position; a locking means for releasably locking the retaining means in the latch bolt retaining position; and detecting means for detecting removal of the body from a door frame.</p> |
