RU2758804C1 - Protection of the permanent key handle assembly from unauthorized lifting - Google Patents

Abstract

FIELD: locking devices.

SUBSTANCE: invention relates to locking devices and can be used in rim and mortise locks for doors of residential buildings, garages, etc. The protection of the handle assembly of the permanent key of the door lock contains a lock housing (1) with a lid and a cylinder secret mechanism installed in it, a frame of crossbars (2). The crossbar frame (2) is installed in the lock housing (1) for interaction with the cylinder secret mechanism of the lock and simultaneously with the handle assembly (5) of the permanent key and consists of an upper plate that does not have a vertical stroke and a lower plate with a vertical stroke connected by three rivets (4), one of which is located in the lower part of the crossbar frame (2) so that the handle assembly (5) of the permanent key, made in the form of a rectangular plate with curved edges, during fixed installation of the crossbar frame in the extended position, overlaps a rivet with a curved edge, located in the lower part of the crossbar frame.

EFFECT: locking of the crossbar frame is ensured, the possibility of unauthorized lifting of the lower plate and at the same time the impossibility of criminal drilling of the rivet is excluded, while the protection system does not interfere with the normal functioning of the remaining lock mechanisms.

1 cl, 3 dwg

Description

The present invention relates to locking devices and can be used in overhead and mortise locks for doors of residential buildings, garages, etc.

The disadvantage of many modifications of locks from different manufacturers producing euro cylinder locking mechanisms have the same common disadvantage - an unprotected actuator.

To open the lock without a key, one of the options is bypassing the euro of the secret cylinder mechanism by criminal access to the internal parts of the lock, moving the locking plate up and moving the deadbolt frame to the retracted position, the goal will be achieved, the lock will be opened.

The method itself, the criminal movement of the locking plate upward and the shift of the crossbar frame, bypassing the euro cylinder secret mechanism, is practically suitable for all actuators of many locks.

You can watch it here mail@locks.ru

The counterparts of the locks under consideration include a mortise lock of a new series, Mottura 85.571 / 37, with a euro-cylinder secret mechanism, vertical rods, a lower latch, a bolt, a reinforcing lever and a deadbolt lock.

The manufacturer of this lock from a new series is recommended for installation in armored metal doors.

But if necessary, in view of the current situation, open the lock without a key, in the lock body above the removable euro cylinder secret mechanism, a hole is drilled at the location of the bolt delay, then with the help of a hook, quite easily, the delay is lifted and the bolt is shifted.

To a significant disadvantage of the analogue, the lock of the new series, it is necessary to include the old possibility, using a proven method, to open and unlock the actuator, bypassing the locking replaceable euro cylinder secret mechanism installed in it.

The disadvantage of an analogue, a mortise lock of a new series, Mottura 85.571 / 37, with a euro-cylinder secret mechanism, is the weak protection of the bolt of the lock from the possibility of its unauthorized movement to the side.

The closest prototype to the proposed technical solution is the mortise lock Calais 252 R, containing a lock case with a cover, built-in armored cover, upper latch, lock lever, bolt, euro-cylinder secret mechanism.

Look on the website "Kriminalist.com" in the section about locks; methods of criminal unlocking, Mottura 85.571 / 37 and Calais 252 R.

Unauthorized opening of the lock occurs by drilling in a certain place, with a victorious drill of the lock cover and armored lining, then there is a slight rise of the locking plate up and the frame of the crossbars is shifted to the retracted position, the goal is reached the lock is open.

Due to the peculiarities of the analogue under consideration, after the criminal drilling of the lock cover and armored lining, it becomes possible to easily move the crossbar frame to the retracted position, i.e. in this lock mechanism, there are no design features provided to prevent unauthorized movement of the crossbar frame to the position of pushed into the lock.

The disadvantage of the prototype in question, the mortise lock Calais 252 R, with the euro-cylinder secret mechanism, is the weak protection of the lock bolt from the possibility of its unauthorized movement to the side to the position pushed into the lock.

The task is to protect the lock, in principle, from such a criminal way of moving the crossbar frame, it is proposed to add protection to the lock design, which will exclude the movement of the crossbar frame to the position pushed into the lock.

The technical result achieved with the application of the invention is the creation of protection that excludes unauthorized lifting of the permanent key handle assembly, with the ability to use a simple key, a permanent key during the movement of the crossbar frame, while the created protection should not interfere with the normal functioning of the entire lock mechanism.

The essence of the invention and the difference from the existing prototype is the possibility of combining, the operation of the permanent key handle assembly, a simple key, with a movable transom frame and created protection, with the impossibility of unauthorized lifting of the permanent key handle assembly, for criminal movement of the transom frame.

A schematic drawing of the lock case with two assemblies is presented.

FIG. 1 shows a lock body without a cover, with two lock assemblies assembled.

FIG. 2 shows a sectional side view of a permanent key handle assembly.

FIG. 3 shows the cover of a lock with a cylinder secret.

FIG. 1 shows a view of the lock body without a cover, consisting of the following parts; position 1 lock body, position 2 deadbolt frame, position 3 spring of the deadbolt frame, position 4 rivets 3 pcs., position 5 permanent key handle assembly, position 6 protective rotating washer, position 7 hardened rotating handle sleeve, position 8 slot.

FIG. 2 is a view of a permanent key handle assembly of parts; position 4 rivets 3 pcs., position 5 permanent key handle assembly, position 6 protective rotating washer, position 7 the handle bushing is hardened rotating.

FIG. 3 shows a view of the lock cover with a cylinder secret installed on it, position 9.

The implementation of the invention proposes a mortise door lock, which is a latch capable of closing and opening the door from the outside with a simple mechanical key, from the side of the room with a permanent key in the structure of the lock.

All movements of the lock mechanisms take place by transferring mechanical movement through the cylinder secret 9, or the permanent key handle assembly 5 in FIG. 1.

Only if the lock body 1 and the lock cover are connected with the cylinder secret 9 does the interaction of the main lock mechanisms shown in FIG. 1.

Lock body position 1 shown in FIG. 1, all-metal steel, rectangular shape.

All 4 pcs. the corners of the lock body 1 are welded, welding of all corners is necessary to impart greater strength to the entire lock body in connection with the installation of the developed protections against the criminal movement of the crossbar frame 2 and the hammering of the bolts into the lock body 1, shown in Fig. 1.

The transom frame position 2 shown in FIG. 1, this is an upper plate and a lower plate, interconnected by powerful rivets 3 pcs., Shown at position 4, FIG. 1, this mechanism is spring-loaded by the spring of the frame of the crossbars 3 and the bottom plate has a small vertical stroke to the top.

The device of the transom frame.

The top plate does not have a vertical stroke, vertical grooves are made in it, in which rivets of 3 pieces are installed, shown at position 4, Fig. 1, providing the connection of the two named plates and a small vertical stroke between them, bolts of 4 pcs are attached to it.

In its upper part, a longitudinal groove is made, for horizontal movement of the transom frame 2, along the lock body 1, a slot 8 is provided in its lower part, for interaction with the handle unit of a permanent key 5, shown in Fig. 1.

The bottom plate has a limited vertical stroke, is intended for interconnection with the cylinder lock 9, and is connected to the top plate by rivets 3 pcs. shown at 4, FIG. 1.

One of the rivets, position 4, shown in FIG. 2, structurally, conceived and specially located in its lower part so that it is an interlock between two independent subassemblies.

The upper plate and the lower plate, connected by rivets 4, and form a single mechanism, are called the deadbolt frame 2, which is installed in the lock body 1, and has the ability to horizontally move, vertical movement, interconnection with the lock cylinder secret 9, and the permanent key handle assembly 5, shown in FIG. 1.

Note, both plates in the schematic drawing, in the details of the lock, are not shown separately, and are not labeled as the principle of operation of the created mechanism is explained, is the simplest and in the text further denoted as the crossbar frame 2 shown in Fig. 1.

In the lock case 1, the crossbar frame 2 is installed in such a way that its horizontal and vertical movement does not interfere with the operation of the handle unit of the permanent key 5, and does not interfere with the operation of any mechanism that is in constant interaction with it.

When locking the lock, the frame of the crossbars 2 is set to the extended position, FIG. 1.

The spring of the transom frame, item 3, shown in FIG. 1, provides a vertical return of the stroke of the bottom plate to its original position, shown in FIG. 1.

Rivets 3 pcs., Item 4, shown in FIG. 1, are designed to connect two plates, are made powerfully, are installed on the front side of the upper plate and are the supports on which the spring of the crossbar frame 3 is supported, shown in Fig. 1.

The permanent key handle assembly, item 5, shown in FIG. 1 is a quadrangular plate with two curved edges and two bushings installed diagonally.

All these parts face the inner side of the lock body; bushings are installed in the center of the plate on both sides.

The handle assembly of the permanent key 5 is located above the transom frame 2, so that when moving away from the key during the completion of the bolt frame installation to the extreme position, it is pulled out of the lock, overlaps with its bent edge, the rivet 4 is shown in Fig. 2.

The rivet 4, one of three, is installed on the frame of the crossbars 2, in its lower part, so that the blocking of the two units is ensured and unauthorized lifting, bypassing the bent edge of the handle unit of the permanent key 5, is impossible, shown in Fig. 2.

The blocking works regardless of what kind of key the transom frame will be installed, in the extreme position extended.

The fixation of the operating mechanisms in any position is ensured by the cylinder secret 9 rigidly mounted on the lock cover, which is interconnected with the frame of the crossbars 2, provided that the lock cover with the cylinder secret 9 is installed on the lock body 1. Not shown in the drawing due to the obviousness of what is happening.

The permanent key handle assembly 5 installed inside the lock body 1 is in permanent connection with the permanent key handle installed on the door from the inside of the room.

To open or close the door with a permanent key, it is necessary to turn the handle of the permanent key in the required direction, inside the lock mechanism, a quadrangular plate with curved edges will rotate and the bolt frame will be set to the extreme position, extended or retracted.

In the locked position, one rivet 4, located in the lower part of the crossbar frame 2, turns out to be covered by the bent edge of the permanent key handle assembly 5, exactly located above it, so that unauthorized lifting, bypassing the bent edge, is impossible.

The output of the frame of the crossbars 2, in the initial position, pushed into the lock, occurs in the reverse order.

Criminal hacking or drilling will have to be carried out; through the cover of the lock with a cylinder secret 9, the hardened rotating handle bushing 7, HRC 66, the rotating protective washer 6, HRC 66, the permanent key handle assembly 5, and under the bent edge of the permanent key handle assembly 5, it is necessary to precisely hit the bolt rivet 4, shown in fig. 2.

The location of the rivet 4 shown in FIG. 2, is structurally made in a hard-to-reach place for the impossibility of criminal drilling, namely under the bent edge of the handle assembly of the permanent key 5, shown in FIG. 2.

A new technical result and a difference from the prototype, this is a created protection that prevents unauthorized lifting of the permanent key handle assembly, but with the ability to use a simple key, a permanent key during the movement of the crossbar frame, while the created protection does not interfere with the functioning of the entire lock mechanism.

Claims (1)

Protection of the handle assembly of a permanent key of a door lock, comprising a lock body with a cover, a cylinder secret mechanism installed in it, a deadbolt frame, characterized in that the deadbolt frame is installed in the lock body to interact with the cylinder secret of the lock and simultaneously with the permanent key handle assembly, consists of an upper plate that does not have a vertical stroke and a lower plate with a vertical stroke, connected by three rivets, one of which is located in the lower part of the transom frame so that the handle assembly of a permanent key, made in the form of a quadrangular plate with curved edges, during fixed installation of the transom frame to the extended position, overlaps the rivet located in the lower part of the transom frame with a bent edge, thus blocking the transom frame, excluding the possibility of unauthorized lifting of the bottom plate and at the same time the impossibility of criminal drilling of the rivet, but at the same time does not interfere with the normal functioning of the rest lock mechanisms.

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