RU2602051C1 - Safety lock for fire and front doors - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: lock consists of armored casing (11), where the mechanical parts are located which are in contact with the holes in the fixed portion, locking a movable portion, is characterized by fact that inside armored casing (11) there is first horizontal sliding bolt (12) with locking cylinders (13) arranged on the outer side, and second bolt (14), also sliding horizontally, with optional locking cylinders (15) arranged on the outer side; and above bolts (12, 14) are activated by central node (16), which comprises independent shutters (22, 23), each of them has independent sprockets (19, 24), which act on teeth (17, 18) of those bolts.

EFFECT: disclosed is a safety lock.

10 cl, 5 dwg

Description

The invention relates to a security lock, which can be used on fire (armored, rear) and front (entrance) doors.

The lock in accordance with the invention is equipped with a special anti-burglary mechanism, in other words, it is able to withstand even active attempts to penetrate using a false panel and universal keys.

More precisely, the lock in accordance with the invention is equipped with a security system which, if one tries to open it with a bezel and universal keys, activates several additional cylinders, even when the main cylinders are open.

In addition to traditional solutions, the lock according to the invention shows the advantage of including an additional lock when the main lock is cracked.

An object of the present invention is in the field of security systems applicable to armored doors.

As noted, armored and entrance doors are equipped with locks that use keys to open, the shape of which changes and is based on the type of keyhole used.

The locks of the armored doors must withstand penetration attempts, and these locks are equipped with European profile cylinders installed as close to the door as possible. It is better if a conical shape is used, also the cylinders must withstand drilling and cutting.

Classic two-cylinder locks are the most used in armored front doors and include a central bolt, consisting of several sliding cylinders that fall into the holes in the fixed part, which allows you to block the movable part. To further protect the armored door, vertical bolts are used.

A two-cylinder lock is also called a lever lock or frame lock, with plates or is defined as an “armored lock”.

The bolt or mortise lock is opened with a key. The key connects plates, key grooves and levers. The height of the grooves of the key allows the grooves of the plates to line up so that the cam passes through the above plates so that the key rotates and the valve is retracted.

Please note that two-cylinder locks for armored doors almost always have an equal number of even and odd key turns. By “turn of the key” is meant a 180 ° turn of the key and the relative sliding of the latch or deadbolt.

Using a special key, the bolt is pulled back, which allows the door to open.

One common technology for reinforcing armored locks is to use a lever that moves the plates to engage the grooves of the plates into engagement with the cam. This method leads to the simple use of locks, the ability to regulate the full opening of the lock for 2 or 4 turns of the key.

Nevertheless, attackers are inclined to use penetration tools that allow them to achieve the goal, and, in any case, attackers who have access to special devices and have the time are able to open any type of door with any lock and any degree of security.

Some instances of well-known locks are described in publications EP 2278100, FR 2841927 or CH 677517, and they are traditional types of locks that have the aforementioned disadvantages.

An object of the present invention is to provide a lock that is able to withstand penetration attempts and even attempts when the main deadbolt has already been cracked.

In fact, in accordance with the invention, in this case, if the attackers broke into the main deadbolt, an additional deadbolt will come into operation, which is activated by the same key when the main deadbolt is moved back.

In this case, the lock becomes completely armored, guaranteeing maximum durability of parts, even against the most powerful hacking tools.

In addition, according to the invention, a pair of independent deadbolts is used in the lock, one of which consists of a main deadbolt and is used to regularly open and close the door, and the other consists of an emergency additional deadbolt, which is activated when the main deadbolt is opened with a non-original key .

Features and details of the invention can be better understood using the information below, given as an example, as well as using the attached images, on which:

- figure 1 shows a complete axonometric diagram of the lock according to the invention with the main bolt in the working position;

- figure 2 shows a schematic view of a lock according to the invention with an additional deadbolt in a working position;

- figure 3 shows a schematic view of a lock according to the invention with two deadbolts pulled back and with the door in the open position;

- figure 4 shows a perspective and schematic detailed views of the inside of the key activating the device;

- figure 5 shows a complete schematic front view of the castle according to the invention.

Referring to the drawings, reference numeral 10 shows the entire lock according to the invention, which essentially consists of an armored housing 11, where mechanical parts are located that interact with holes in the fixed part and which allow the movable part to be blocked.

More precisely, inside the armored casing 11 there is a first horizontal sliding latch 12 with locking cylinders 13 located on its outer side and a second latch 14 also sliding horizontally with additional locking cylinders located on its outer side.

The upper latch 12 and the lower latch 14 are located respectively above and below the central cylinder 15, which contains parts that establish the horizontal movement of the two latches.

Both latches 12 and 14 have serrated edges, respectively 17 and 18, with which the sprockets 19 and 20 are engaged, which are part of the central control unit 16.

The upper deadbolt 12 has a counteracting spring 21, which returns it to its external position.

As shown in figure 4, the control unit 16 consists of a central shutter 22, which includes the above sprocket 19, and on this central shutter 22 is a second coaxial shutter 23 connected to the second sprocket 24, which is deployed to the sprocket 19.

The central shutter 22 is inserted into the locking unit 25, attached to the bracket 26, on the basis of which the latches 12 and 14 move horizontally.

The central shutter 22, together with the corresponding sprocket 19, acts on the main bolt 12, while the coaxial shutter 23 together with the corresponding sprocket 24 acts on the additional bolt 14.

As shown in figure 2, the main deadbolt 12 and the secondary deadbolt 14 maintain a predetermined position with screws 28 and 29, which use the pressure of the springs 30, press on the corresponding ball bearings 31 through the holes 32 available on each deadbolt.

Figure 2 also shows the use of the sensor 33, which determines the control of any applicable electronic locking devices. According to the invention, as indicated in figure 4, the keys for opening and closing the lock are different; more precisely, there is a key 33 with defined grooves that opens from the outside of the room and another key 34 with other grooves that opens from the inside of the room.

Please note that to close the door you must insert one of the keys 33 and 34 into the lock.

From the point of view of the operation of the lock, the described allows for the central shutter 22 to establish the rotation of the sprocket 19, thus, the shutter 12 slides, which determines the entry or extraction of the cylinders 13 into the holes on the fixed side.

In the case of an attempt to break the lock, for example, through the use of false keys, the shutter 22 is connected with the shutter 23 and in this situation, the upper bolt 12 is pulled back, and the lower 14 moves forward, blocking the door.

The invention has been described above with reference to one of its specific implementations, however, the invention has numerous variations that fall within its scope within the framework of technical equivalents.

Claims (10)

1. The lock, consisting of an armored housing (11), in which there are mechanical parts in contact with the holes in the fixed part, blocking the movable part, characterized in that the first horizontal sliding bolt (12) with locking cylinders is placed inside the armored housing (11) (13) located on the outside, and a second bolt (14), also sliding horizontally, with additional locking cylinders (15) located on the outside; and the above deadbolts (12, 14) are activated by a central node (16), which includes independent shutters (22, 23), each of which carries independent sprockets (19, 24) that act on the teeth (17, 18) of these same deadbolt. 2. The lock according to claim 1, characterized in that the upper deadbolt (12) and the lower deadbolt (14) are located respectively above and below the central control unit (cylinder) (16), which include parts that determine the horizontal movement of both deadbolts. 3. The castle in paragraphs. 1, 2, characterized in that both bolts (12, 14) are provided with serrated edges (17, 18), which are affected by sprockets (19, 20), which are part of the central node (16). 4. The lock according to claim 1, characterized in that the upper deadbolt (12) is equipped with an opposing spring (21), which returns it to its external position. 5. The lock according to claim 1, characterized in that the central node (16) consists of a central shutter (22), which includes the aforementioned first sprocket (19), and a second coaxial shutter (23) is made on this central shutter (22), which carries the second sprocket (24), which is deployed to the sprocket (19). 6. The lock according to claim 5, characterized in that the central shutter (22) enters the locking unit (25) attached to the bracket (26), on the basis of which the latches (12, 14) move horizontally. 7. The lock according to claim 1, characterized in that the central shutter (22) together with the corresponding sprocket (19) acts on the main bolt (12), while the coaxial shutter (23) together with the corresponding sprocket (24) acts on the additional bolt ( fourteen). 8. The lock according to claim 1, characterized in that the deadbolt (12) and deadbolt (14) maintain a predetermined position by means of screws (28, 29), which use the pressure of the springs (30), press on the corresponding ball bearings (31) through the holes (32) on each bolt. 9. The lock according to claim 1, characterized in that the keys for opening and closing the lock are different; more precisely, there is a key (33) with certain grooves that opens from the outside of the room, and another key (34) with other grooves that opens from the inside of the room, and in order to release the bolt (12) in order to close the door both from the outside of the room, and from the inside, you must insert one of the two keys (33, 34) into the lock. 10. The lock according to claim 1, characterized in that a sensor (33) is used, which determines the control of any electronic locking devices used.

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