The present invention relates to a security locking system of the type comprising a cylinder (3) provided with a set of pistons (8) that are able to be positioned by elastic means on the impression formed in the edge (7b, 7c) of a control key (7) perpendicularly to the direction in which said key (7) is introduced into the cylinder (3), these pistons (8) being able to take up two positions, namely a position retracted into the cylinder (3) when the key (7) is introduced into the latter and an extended position when the key (7) is withdrawn there from. This system is characterized in that:—the cylinder is made up of a locking block (3) of parallelepipedal shape that is able to be received in a receiving block (5),—it comprises locking means which are activated when the locking block (3) is introduced into the receiving block (5).

A lock including a set of tumblers preserving their position after contact with a key to permit blocking of the keyhole during the opening process.

A lock including a set of tumblers preserving their position after contact with a key to permit blocking of the keyhole during the opening process.

A square computer lock includes a square housing, and a lock core, a lock tongue, an unlocking button, a locking button and a latch arranged in the square housing. An insertion hole is formed on the rear side of the square housing. A row of plate tumblers are arranged in a lock core lock hole. A plate tumbler spring is arranged below each plate tumbler. Positioning posts are formed on a lateral surface of the latch. A wedge-shaped plate is formed at a lower end of the unlocking button. An unlocking spring is arranged between the wedge-shaped plate and the bottom of the square housing. The locking button is arranged in the square housing in a front-back movable manner. An upper end of the locking button penetrates in a locking hole in a front-back movable manner.

A square computer lock includes a square housing, and a lock core, a lock tongue, an unlocking button, a locking button and a latch arranged in the square housing. An insertion hole is formed on the rear side of the square housing. A row of plate tumblers are arranged in a lock core lock hole. A plate tumbler spring is arranged below each plate tumbler. Positioning posts are formed on a lateral surface of the latch. A wedge-shaped plate is formed at a lower end of the unlocking button. An unlocking spring is arranged between the wedge-shaped plate and the bottom of the square housing. The locking button is arranged in the square housing in a front-back movable manner. An upper end of the locking button penetrates in a locking hole in a front-back movable manner.

The present invention relates to a security locking system of the type comprising a cylinder (3) provided with a set of pistons (8) that are able to be positioned by elastic means on the impression formed in the edge (7b, 7c) of a control key (7) perpendicularly to the direction in which said key (7) is introduced into the cylinder (3), these pistons (8) being able to take up two positions, namely a position retracted into the cylinder (3) when the key (7) is introduced into the latter and an extended position when the key (7) is withdrawn there from. This system is characterized in that:the cylinder is made up of a locking block (3) of parallelepipedal shape that is able to be received in a receiving block (5),it comprises locking means which are activated when the locking block (3) is introduced into the receiving block (5).

An interchangeable cylinder lock core with a mechanism for transferring a torque to a lock unit when a key plug is rotated. The interchangeable cylinder lock core includes a shell having an upper part, provided with a central row of locking pins in associated cavities, and a lower part with a cylindrical bore accommodating the rotatable key plug. At least a part of the cylindrical bore extends through a rotatable retainer sleeve. A back region of the key plug has a minimum length with the adjoining front region of the key plug being located in front of the mechanism for transferring torque. The adjoining front region accommodates, in addition to the central row of locking pins, at least one side locking mechanism which is located in its entirety within the front region of the key plug and interacts with at least one recess in a fixed front end sleeve portion.

The invention relates to a mechanical system for blocking and opening in a lock that can be actuated via a key with a linear movement, without rotation, which does not therefore require a rotation of the key to actuate the opening mechanism, not including any kind of cylinder system. Same comprises two complete parts, as shown in FIG. 1, a special key (1) and the system comprising the set of parts forming the lock. Upon introducing the key with a simple linear movement, and without needing to rotate same, the different mechanical actions are triggered that permit the unblocking of the lock, such that the individual notches of the key press on readers (2), which are to be calibrated, and, only if the position is correct, the mechanisms permitting the opening are released. Same is particularly applicable in embedded locks for all door configurations.

An interchangeable cylinder lock core with a mechanism for transferring a torque to a lock unit when a key plug is rotated. The interchangeable cylinder lock core includes a shell having an upper part, provided with a central row of locking pins in associated cavities, and a lower part with a cylindrical bore accommodating the rotatable key plug. At least a part of the cylindrical bore extends through a rotatable retainer sleeve. A back region of the key plug has a minimum length with the adjoining front region of the key plug being located in front of the mechanism for transferring torque. The adjoining front region accommodates, in addition to the central row of locking pins, at least one side locking mechanism which is located in its entirety within the front region of the key plug and interacts with at least one recess in a fixed front end sleeve portion.

A lock including a set of tumblers preserving their position after contact with a key to permit blocking of the keyhole during the opening process.