| 摘要 |
<p>The door lock can be used for fittings in civil engineering and is designed for fitting to internal and external doors of residential, public and other buildings. The upper unit of the lock comprises a tongue (1), eccentric (5), pin (4) and fixing elements. Tongue (1) is made of a head and a tail, fixed to it, symmetrical to the longitudinal axis, at the end of which two holes are being fitted one above the other, and being fixed at its rear end by a spring (2). The eccentric (5), pressed in its lower end by a spring (7) and spaced by a small column (8), drives the flat pin (4), underlying it, the upper folded end of which lies in the upper hole of the tail of the tongue (1), and in its lower end is in contact with a lever (6), which is actuated by the locking system and is mobile-connected to the lower tongue (9). In the cover of the door lock a hole is machined above spring (2), pressing the upper tongue (1) in front end position. 1 claim, 1 figure</p> |
