ME02691B - Security lock for armoured doors and front doors - Google Patents

Claims (10)

1. A security lock essentially consisting of a reinforced box (11) of the housing where there are mechanical parts that engage slots created in the fixed part allowing the mobile part to be blocked, characterized in that inside the box (11) of the housing there is a privy horizontal slide a support (12), with closing cylinders (13) fixed on its outside, and another support (14), which also slides horizontally, with auxiliary closing cylinders (15) fixed on its outside, and by and other supports (12, 14) are actuated by a central unit (16) which includes independent plugs (22, 23), each carrying an independently toothed gear (19, 24) which operates on the teeth (17, 18) of these same supports in case of an attempt to forcefully open the lock with fake keys, the two plugs (22, 23) are tied and the upper bracket (12) moves back while the lower bracket (14) moves forward. 2. Safety lock according to the previous claim, characterized by the fact that the upper support (12) and the lower support (14) are arranged each separately above and below the control cylinder (16) which includes parts that determine the horizontal movement of the two supports. 3. A safety lock according to any of the previous requirements, characterized in that both the upper support (12) and the lower support (14) are equipped with serrated edges, each of which is separately indicated by (17, 18), on which the serrated gears ( 19, 20) which are part of the central control unit (16) work. 4. A safety lock according to any of the preceding claims, characterized in that the upper support (12) is equipped with a spring (21) with a push in the opposite direction which holds it in position when it is pushed outwards. 5. Safety lock according to any of the previous requirements, characterized in that the control unit (16) basically consists of a central plug (22) which includes the first mentioned toothed gear (19), and on this central plug (22) there is attached second coaxial plug (23) which carries the second toothed gear (24), which faces the gear (19). 7 6. Safety lock according to any of the previous requirements, characterized in that the central plug (22) is inserted into the blocking unit (25) attached to the holder (26) on which the supports (12, 14) slide horizontally. 7. Safety lock according to any of the previous requirements, indicated by the fact that the central plug (22) together with the gear (19) works on the main support (12), while the coaxial plug (23) together with the gear (24) works on the auxiliary safety carrier (14). 8. A safety lock according to any of the previous requirements, characterized in that the main support (12) and the auxiliary safety support (14) are held in previously determined positions by the use of screws (28, 29) which, using spring pressure (30), push each separate ball bearing (31) into one of the openings (32) created on each of the supports. 9. Security lock according to any of the previous requirements, indicated by the fact that the keys for opening and closing the lock are different; more precisely, there is a key (33) with a certain serration that opens from the outside in relation to the space to be protected and another key (34) with a different serration from the one previously described that opens inside the space to be protected, and the fact that in order to obtain the release of the carrier (12 ) in order to close the door, both from the outside and from the inside, you must insert one of the two keys (33, 34) into the lock. 10. A security lock according to any one of the preceding claims, characterized in that it uses a sensor (33) which determines the control of any electronic blocking accessory with which the lock is provided.