Blocking device for swivel security doors (Machine-translation by Google Translate, not legally binding)

摘要

1.locking device for security revolving doors, which is designed to work in coordination with a metal detector equipment installed in the enclosure of the revolving door itself, essentially characterized by being constituted from a pair of disks located coaxially with the axis of the door and next to the anchor bearing of said axis, and whose discs are coplanar with each other, one of them being rotatable and integral with the door itself, while the other is fixed and with the particularity that the internal periphery of the disc mobile is adjacent to the outer periphery of the fixed disk, having provided in this fixed disk a plurality of recesses that determine embocaduras in its external periphery, in whose recesses are housed corresponding arched plates for closing of the said mouthpieces, whose plates are associated with corresponding retractable rods of electromagnets housed in each of the recesses, while the discommotor has a new plurality of recesses in its internal periphery, in which respective spheres subject to the permanent thrust of an expansion spring coupled to the bottom of each recess are housed, the diameter of said spheres being slightly less than the amplitude of the existing mouths in the fixed disc. 2.locking device for security revolving doors, according to the preceding claim, characterized in that the electromagnets are connected to the metal detector equipment and operatively arranged so that in a situation of excitation they attract their associated stem and sheet, in order to release the embouchure of each notch. 3. Locking device for security revolving doors, according to previous claims, characterized in that the arched plates have a curvature equivalent to that of the external periphery of the fixed disk. 4.locking device for security revolving doors. (Machine-translation by Google Translate, not legally binding)