| 摘要 |
<p>The invention relates to a mechanical device provided with cylinders with horizontal pins, for door closing and opening, meant to ensure the security of usual locations. According to the invention, the device comprises a housing (1) having a leg (4) and, at the upper part, a longitudinal channel (2) in which there are mounted a front cylinder (7) and a rear cylinder (8) having a rosette (21) with a transverse shaft (31) which enters the leg of the housing (1) and carries out the locking thereof, the cylinders exhibiting some longitudinal channels (14, 22) which contain some pins (16, 23) and some springs (24), where the random variable-length pins (23) of the rear cylinder (8) enter, under the pressure of the springs (24), the front cylinder (7) and achieve the locking thereof, the front cylinder (7) having pins (16) of large precisely calculated variable length by which, with a key with rods (45), the variable length of which is correlated to the length of the pins (16), the cylinder is unlocked from the exterior and is rotated concomitantly with a cam collar (17) mounted thereon, moving the latch of the door lock to which the device is mounted, from the interior, by pulling the shaft (31) of the rosette (21) from the housing of the device, the rear cylinder (8) is unlocked and rotates concomitantly with the front cylinder (7) and the cam collar (17), moving the latch.</p> |
