RU184704U1 - SUVALDNY LOCK OF THE INCREASED PROTECTION - Google Patents

Abstract

The utility model relates to locking devices and can be used in overhead, mortise locks for doors of residential buildings, garages, safes, etc. The technical result is to increase the reliability of protection of the castle from unauthorized or criminal effects due to mechanical actuation of structural elements included in him, in particular due to the implementation of false grooves in the design of the code labyrinth of the level mechanism. The claimed technical result is achieved using the level lock, incl. a sealing lid with a housing, inside of which there is a deadbolt with bolt heads connected to a bolt shank plate on which a shank stand is mounted, spring-loaded code levers with code protrusions and grooves mounted on the side of the shank rack with the possibility of their movement in the transverse direction relative to the movement of the shank rack while the bolt shank stand and code levers are provided with false teeth-shaped protrusions forming a false code groove, and the gap between the shank stand ova and code in the code groove is levers backlash rack bolt shank in a false code code levers groove, and the gap between stud bolt shank groove and the code is a code levers backlash rack bolt shank in a false code groove levers. 17 s.p. f-ly, 5 ill.

Description

Purpose and scope

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

State of the art

Known castle [RF Patent 2156342, MKI E05V 25/00, publ. 09/20/2000]. The lock has a housing, closed by a lid, with guides for the key and racks for moving the movable elements of the castle. A bolt bracket is mounted in the housing with bolts fixed to it and guide racks. Means of locking the bolt is a set of levers spring-loaded relative to the body with grooves for their movement and code ledges and notches. One of the crossbars is a valve made with the possibility of closing or opening the door from the side of the room.

A door lock is also known [RF patent 2142544, publ. 12/10/99]. The lock contains racks located in the housing, designed to guide the movement of the moving elements of the castle. In the case there is a crossbar plate with rods and crossbars perpendicular to it, as well as levers spring-loaded relative to the body with step grooves with code recesses mounted on the racks of the crossbar plate with the possibility of fixing the position and movement when turning the key. The lock has a sleeve mounted on the housing to form a support for the key. In the housing is a spring-loaded actuating valve, made with the possibility of blocking the key hole. Thus, the lock has a security measure that partially prevents its unauthorized opening. Protection works as follows. When closing with a door shutter from the inside, at the same time, the shutter closes the keyhole, which prevents the lock from being opened. However, the design does not provide a means of protection that would not allow the lock to be opened with master keys when it is closed from the outside or closed from the inside, but not to the valve, since in this position the keyhole is open and there is the possibility of access to the levers.

Level locks are also known that increase the degree of protection against unauthorized access. So, a two-turn lever lock is known that contains a bolt lock, which is closest to the proposed technical solution (see Big Soviet Encyclopedia, vol. 9M: Sov. Encyclopedia, 1972, p. 325.326, Fig. 2). This lock contains a housing with a key guide, a bolt with a locking stand and a bolt locking tool, including a set of spring-loaded levers with code protrusions formed by notches for interacting with the locking stand and a single-bearded key. Moreover, the levers are installed on one side of the guide with the possibility of oscillatory motion.

The disadvantage of this lock is that in the bolt blocking tool only the bolt shank is used, which, if it is destroyed, does not prevent unauthorized access.

Closest to the stated solution, a decision can be made of a level lock containing a bolt blocking device including one or more bolt heads, a bolt shank stand, a set of spring-loaded levers with code protrusions, where the bolt lock means further comprises a blind hole with a coil spring located therein a retainer on which a radial groove is made to interact with a curly strip holding the retainer in the cocked position, and on the opposite side of the curly the counter groove is made for fixing it in the rack of the crossbar shank, and the curved bar can be located both on one side of the crossbar shank and on the other side thereof, while the set of spring-loaded levers installed, preserving the geometry of the set levers, gasket, which can be located as on one side of the crossbar, and on the other side of it, and on one of the crossbar heads a hole is made in which the latch is placed in the cocked position [PM 48198]. This decision, based on a set of essential features, can be taken as a prototype. Among the shortcomings of this solution, as well as the previously considered solutions, are limited opportunities in terms of protecting the castle from breaking, limited only by counteracting the hiding of the castle with master keys.

At the same time, the task of protecting the castle structure from both destructive and non-destructive methods of opening remains relevant at the present time.

The essence of the claimed utility model.

The utility model is based on the task of expanding the arsenal of well-known technical means.

The technical result achieved is to increase the reliability of the lock protection against unauthorized or criminal influences by drilling, as well as by picking with a lock key or unauthorized key the lock code of various doors, as well as safes and metal cabinets, including through the execution of false grooves in the construction of the code labyrinth of the level mechanism .

The claimed technical result is achieved by using a level lock, including a cover with a housing, inside of which there is a deadbolt with bolt heads connected to a bolt shank plate, on which a shank rack is mounted, spring-loaded code levers with code protrusions and grooves mounted on the side of the shank rack with the possibility of their displacement in the transverse direction relative to the movement of the shank stand differs from the prototype in that the bolt shank stand and code suvald equipped with false teeth-shaped protrusions that form a false code groove, and the gap between the bolt shank stand and the code groove in the code levers is equal to the clearance of the bolt shank stand in the false code groove of the code levers, and the gap between the bolt shank rack and code groove in the code levers is bolt shank racks in the false code groove of the levers.

In one of the preferred embodiments of the claimed utility model, the bolt is equipped with a locking means including a spring-loaded locking pin located in the cavity of the blind, transverse hole of the crossbar head and mating with a curved spring-loaded bar holding the pin in the cocked position and connected to the shank from the opposite side U-shaped capture, and the body is equipped with an oval, longitudinally elongated locking hole located along the crossbar, opposite the open ode blind hole, with the possibility of providing the lock bolt head movements when descending and locking in the plant oval hole of the locking pin in the destruction of the shank strut.

Moreover, in another possible embodiment of the claimed utility model, the housing is provided with an additional locking hole located coaxially with the locking along the bolt head, so that the locking hole is displaced to the end plate of the housing at the location of the open exit of the blind hole with maximum extension of the bolt heads of the bolt, and the oval locking hole is located at the location of the open exit of the blind hole with an intermediate phase of extension of the rig nyh heads when closing the bolt lock. Moreover, in another embodiment, the blocking hole is made oval, while in another embodiment, the blocking hole can be made round, as a particular form of execution of the oval hole. In this case, in another embodiment of the utility model, the blocking hole may be longitudinally elongated.

In yet another preferred embodiment of the claimed solution, the liner strut is pressed into the bolt liner plate. At the same time, in one of the possible options for implementing the utility model, the bolt shank rack is equipped with a freely rotating metal ball, pressed into the rack. While in another embodiment, the locking pin can also be equipped with a protective metal ball placed between the blind base of the groove and the pin. In possible embodiments, the implementation of the ball in the rack of the shank and the locking pin, can be made of heat-strengthened metal to a hardness of 60-62 HRCE.

According to the claimed utility model, code levers can be placed on both sides relative to the bolt shank plate.

Moreover, in a preferred embodiment, the bolt shank stance is prismatic in shape, and the angle of the teeth of the protrusions of the code levers lies in the range of 93-105 degrees.

In one of the possible embodiments of the claimed utility model, the code levers can be additionally equipped with a cut-off levers mounted parallel to the code levers and spring-loaded relative to the housing having guide grooves in which the racks are placed to enable its plane-parallel movement, and the cut-off levers are equipped with a means for interaction with code locks for joint movement, and also has a curly, mainly T-shaped, slot for introducing cl yuch and ensuring plane-parallel movement of the cut-off levers when opening / closing the lock with a key, with overlapping the keyhole of the lock and placing the stalk of the key in the vertical section of the T-shaped slot of the cut-off levers when you first raise any of the code levers in the lock until the labyrinth of code grooves passes through the lock rack shank and full bolt opening. At the same time, the shank plate is equipped with means for fixing the position of the cut-off levers in the raised state and returning it to its original position with the bolt fully open. Moreover, a means of fixing the position of the cut-off lever in its raised state and returning it to its original state, in another embodiment, can be made in the form of a protrusion of the shank plate, the height of which corresponds to the minimum height of the code locks and the length corresponds to the longitudinal width of the window with a labyrinth of code ledges and grooves of code levers, with the possibility of automatic lifting, fixing the position in the process of opening the lock and lowering to the initial position of the cutoff levers after full th opening bolt.

The chopping lever, according to the claimed utility model, is L-shaped, where a horizontal bar is paired with each of the code levers of the lock and placed above the code levers. In this case, the vertical part of the L-shaped cutoff leopard is equipped with a window conjugated with a labyrinth formed by code grooves of code levers.

Brief Description of the Drawings

The utility model is illustrated by an example of a description of the implementation and drawings, which show:

Figure 1 - General view of the castle (schematically);

Figure 2 - lever bolt (isometry, schematically);

Figure 3 - a set of code levers with a shank stand in the maze, the execution of a false groove on the code ledges;

Figure 4 - means for locking the crossbar heads: isometric view (schematically, fragment);

5 is a shut-off suvald, a front view of an intermediate stage of operation of the castle (schematically, the completion of the stage of opening the castle).

It should be noted that the accompanying drawings illustrate only one of the most preferred embodiments of the utility model and cannot be considered as limitations on its content, which may include other possible embodiments.

Utility Model Feasibility Example

According to a utility model, the level lock comprises a housing 1 (FIGS. 1-5) with a cover (not shown in the drawings). Inside the housing 1 there is a deadbolt 2 with deadbolt heads 3 and a strut of the bolt shank 4, rigidly connected to the plate of the bolt shank 5. According to the presented example of implementation, the rack 5 of the bolt shank is made of a prismatic shape, close to square, in cross section of the form. Moreover, in a preferred embodiment of the claimed solution, the shank stand is pressed into the bolt shank plate and provided with teeth 6 in the form of teeth with a groove between them and provided with a freely rotating steel ball 7 pressed into the stand. The presence of a pressed steel ball, preferably made of heat-hardened metal to a hardness of 60-62 HRCE, provides protection for the shank of the shank against drilling. Similarly, the implementation of the shank rack pressed into the shank plate helps to protect the structure from destruction when trying to break in, and on the other hand, provides the required rigidity of the structure during its operation, preventing premature wear of the bolt structure elements due to the monolithic structure as a whole.

The positioning of the shank plate is carried out by means of the rack of the housing 8 and through 9 holes on the end plate of the housing for installation of crossbar heads. To ensure that the shank plate can be moved in the longitudinal direction, which ensures the retraction and release of the bolt heads relative to the housing end plate, the plate is equipped with a longitudinal 10 slot through which the housing strut passes 8. The length of the slot 10 is determined by the stroke size of the bolt heads and limits the movement of the shank plate within the specified limits . At the same time, in order to convert the rotational movement of the key into the translational movement of the deadbolt to open or close the lock, the shank plate is provided with a comb corresponding to the key half-turns provided by the lock mechanism located longitudinally along the edge of the shank plate located near the keyhole of the housing. The transmission of information from key to lock occurs when the key is rotated by a certain angle. It is determined by the working edge of one of the levers.

The code part of the lock is composed of code levers 16 (level plates), made in the form of plates fixed to the housing by means of a spring 19 and provided with code protrusions 18 and grooves 17 assembled in a package, where the code grooves and protrusions of the individual levers form a code labyrinth that provides a given the secrecy of the castle. According to the embodiment 1-3 shown in the drawings, the spring-loaded code levers 16 are mounted with the possibility of their movement in the transverse direction relative to the rack 4 of the bolt shank. The shank stand 4, pressed onto the shank plate, moves in the code grooves 17 of the levers when the shank plate is displaced by the rotation of the key and the raising and lowering of the code levers in accordance with the key code.

Code levers can be placed both on one side of the shank plate, and on both sides relative to this plate. At the same time, with one-sided placement of code levers, their placement is carried out from the side of the shank rack.

To increase the level of protection of the lock against criminal opening, according to the claimed utility model, the bolt shank rack is preferably made prismatic, and the angle of the teeth of the code protrusions of the code levers lies in the range 93-105 ° (see Figs. 1-5), which complicates the opening of the lock because when executing a code groove or protrusion outside the specified limits, the risk of opening the lock with master keys or a self-impression key, due to easy slipping of the shank stand along the inclined planes of the code labyrinth, for example, when force is applied to the crossheads. Close to rectangular code grooves and protrusions in combination with a rectangular shank in the plan provide effective locking of the rack in the code maze, thereby preventing breaking of the lock.

Similarly, enhancing the protection of the lock from being opened with master keys or counterfeit keys is ensured by the design of the lock, according to the claimed utility model, on the shank stand and code ledges of the code levers there are teeth-shaped protrusions 29 that deceive the cracker when breaking the lock with a master key. The groove for the rack should be slightly wider than the rack itself. But the bigger it is, the less such a lock meets the requirements of secrecy. The groove (false groove) between the teeth of the code protrusions of the suvald is reciprocal with respect to the protrusions made on the shank stand. Moreover, the gap between the bolt end of the bolt and the code groove in the suvald is equal to the clearance of the bolt of the bolt shank in the “false groove” of the levers, which protects the lock from breaking with the help of master keys, due to the difficulty in choosing the required secret combination.

As follows from the drawings (Figs. 1-5), the lever lock for enhancing the protective functions can be equipped with a cutoff lever 20 installed parallel to the code lever and spring-loaded relative to the housing. To position the cut-off lever and ensure its displacement during operation, the plate of the cut-off lever is provided with guide grooves 21, in which racks 22 are placed to enable its plane-parallel movement. At the same time, the chopping lever 20 is equipped with a means for interacting with the code locks of the lock for their joint movement, and also has a figured, mainly T-shaped 22, slot for inserting the key and ensuring plane-parallel movement of the chopping lever when opening / closing the lock with a key, with overlapping the keyhole of the lock and placing the key stalk in the vertical section of the T-shaped slot of the cut-off levers at the first lifting of any of the code levers in the castle until the labyrinth of code grooves passes through the lock Wald-resistant shank and full bolt opening. The rise of the cut-off levers, and therefore the overlap of the keyhole of the castle, occurs when moving the contacting levers with the means of interaction of the cut-off levers with code. This effect will be repeated not only when the key is rotated in the lock, but also when trying to open the lock with a master key or counterfeit key. In this case, the shank plate is provided with means for fixing the position of the cut-off levers in the raised state and returning it to its original position with a fully open deadbolt, where the above means for fixing the position of the cut-off levers are made in the form of a protrusion 23 of the shank plate, the height of which corresponds to the minimum lifting height of the lock code levers, and the length corresponds to the longitudinal width of the window with a labyrinth of code ledges and grooves of code levers, with the possibility of automatic lifting, fixing the position in the process of opening the lock and the descent in the initial position of the cutoff levers after the complete opening of the bolt. The chopping lever, according to the presented example of the implementation of the claimed solution, is made L-shaped, where the horizontal bar 24 is for interaction with the code locks of the lock and is interfaced with each of the code locks of the lock and is located above the code levers, and the vertical part of the L-shaped cutoffs equipped with a window 25 conjugated with a labyrinth formed by the code grooves of the code levers.

The supply of the cut-off levers with a strap 24 is only one of the possible options for the design of the means for interacting with the code levers of the castle. In other possible embodiments of the claimed useful module, as a means for interacting with the code levers of the lock, any suitable means for interacting with the levers, such as a protrusion, plate, shelf, etc., can be used. The design of the cut-off levers, according to the considered embodiment, can be made from a single workpiece by bending its protruding part. The chopping lever can also be equipped with a stepped groove with code grooves and protrusions, thereby performing an additional function of the code element, complicating the criminal hacking of the structure.

According to the claimed utility model, in order to increase the security of the lock against unauthorized access, the bolt is equipped with a locking means including a spring-loaded locking pin 11 located in the cavity of the blind transverse hole 12 of the crossbar head. The locking pin 11 is interfaced with a spring-loaded figured bar 26 holding the pin in the cocked position and connected on the opposite side to the stand 4 of the shank with a U-shaped gripper 13. The bar 26 can be mated with the locking pin, for example, by cutting through the plant hole 12 through her hook or other, known from the prior art, means of fastening and connecting it with a figure plate. As follows from the embodiment shown in the drawings, the locking pin is provided with a protective metal ball 27 located between the blind base of the groove and the pin. The ball protects the pin from drilling and is preferably made of heat-strengthened metal to a hardness of 60-62 HRCE. At the same time, the casing is equipped with parallel to the crossbar head (in the drawing of FIG. 1, parallel to the central crossbar head) two oval, longitudinally elongated holes: locking 14 and blocking 15, located opposite the open exit of the blind hole with the most extended bolt heads and on a fixed intermediate stages of closing the lock, providing the ability to block the movement of the heads of the bolt during descent and plant into the oval hole of the locking pin as a result of the destruction of the tail end and, for example, by drilling or otherwise. Similarly, the pin will lock the deadbolt heads when attempting to directly impact the locking mechanism. With the bolt heads extended as far as possible, the locking pin will be located opposite the hole closest to the lock end plate. Whereas, when the bolt heads are extended, for example, only two half-turns, the locking pin will stand opposite the hole furthest from the end plate. The opening 14 of an oval, longitudinally elongated shape helps to prevent the criminal opening of the castle using the method of rapid movement of the deadbolt. The selected form of the hole provides locking of the lock with a locking pin in any case, which, for example, cannot be guaranteed when one or a pair of round holes in the lock case are used in protection, due to the limited length insufficient for the protection mechanism to operate during forced fast movement of the bolt, when the pin just does not have time to enter the blocking hole on the case. However, it is possible to make a blocking hole that is closest to the end plate round and the stopper hole oval, which is acceptable given the inertia of the process of fast movement of the bolt, when at the initial stage it is necessary to apply great effort, which reduces the rate of displacement of the bolt. The spring-loaded figured bar 26 rests against the bolt shank rack, while the contact point of the plate with the bolt shank rack is U-shaped, which protects the pin from “false” protection operation. With this form, the cracker through the key hole cannot provide a “false” response to the defense. Thus, locking of the lock (deadbolt heads) is carried out when the bolt shank is destroyed, when the spring-loaded figured plate is displaced and releases the pin from fixing. The pin enters one of the oval holes provided on the housing, thereby blocking the movement of the bolt of the lock to open.

The leveling mechanism can be made of steel strip DC 01 + ZE 25/25 APC, galvanized by electrolytic method on both sides.

The castle as a whole functions in a traditional way.

Starting position - the lock is closed, the deadbolts are extended.

When you turn the key, inserted into the guides of the keyhole and the T-shaped slot of the cut-off levers, its beard with its secrets acts on the edge of the levers, moving them in the direction transverse relative to the bolt heads, using racks as guides. In this case, the springs are compressed and the longitudinal channel of the code labyrinth for the shank rack opens. When the key is turned, its barbs also affect the protrusions of the toothed comb of the bolt plate, and it translates, because the protrusions of the code labyrinth do not impede the longitudinal movement of the liner strut. When moving the shank plate, the deadbolts move in and the lock opens. The return of the levers to their original position is carried out under the action of springs.

Locking is carried out in the reverse order.

On the stand of the bolt shank and the levers there are protrusions in the form of teeth that deceive the cracker when breaking the lock with a master key. During the opening of the lock with master keys, the false grooves capture the reciprocal groove of the bolt shank, which greatly complicates the lifting of the levers with master keys or makes this impossible at all. As mentioned earlier, if you try to push the deadbolt into the lock case, it will run into just the code ledges through the rack. That is, between the rack of the bolt shank and the code protrusions of the suvald, friction forces will arise. With an intellectual autopsy, the task is to set the leveler so that the groove passes exactly opposite the rack, that is, so that the code tabs stop blocking the deadbolt. And for this we must raise the levers. However, when raising the protrusion of the shank, with a high degree of probability, especially if the false grooves are distributed along the maze, it will catch on the groove of the code protrusion and further movement of the levers will be blocked or difficult. At the same time, the gap between the bolt end of the bolt and the code groove in the levers equal to the backlash of the bolt of the bolt in the false groove of the leverage provides the most effective protection of the lock from breaking with the help of master keys, due to the complexity of choosing the correct configuration of the secret combination of the lock and a significantly higher probability close to absolute values, lock the levers when engaging the protrusion of the shank stand for the false groove of the code protrusion of the leverage., that is, the specified technical result is achieved tata.

At the same time, along with the movement of the code levers, a plane-parallel movement of the cutoff levers is carried out together with them, because The horizontally bent cut-off level of the cut-off lever is engaged with the edge of the code levers. At the same time, by moving the shank plate and raising the cut-off level lever, its horizontal strip is wound over the protrusion of the shank plate and does not lower to its initial position until the bolt is fully opened when the shank plate is so moved that the protrusion of the shank plate is pulled out from under the bar of the cut-off scaffold, allowing it to lower to its original position. At the same time, the T-shaped slot for inserting the key provides unhindered movement of the cut-off levers up when the key is turned, because the slot moves together with the cut-off lever plate along the stem of the inserted key or in the case of a criminal opening of the lock, any other similar tool, for example, a master key, blocking part of the keyhole keyhole, namely the part that is used to enter the key beard (on both sides of holes for the key stem), preventing the possibility of unauthorized opening of the lock.

However, according to the withered utility model, in addition to blocking the access to the code labyrinth of the leveling mechanism with the help of a cut-off leveler, with unauthorized access to the leveling lock, for example, by drilling the bolt shank, the figure bar moves, which was previously directly due to the interaction with the lock pin groove held him cocked with a compressed spring located in a blind hole. A change in the position of the figured bar causes the locking pin to move, which, depending on the position of the crossbar head, enters the locking hole or blocking hole of the housing under the action of the spring and, thus, locks the lock, that is, the specified technical result is achieved.

Claims (18)

1. A lever lock, comprising a lid with a housing, inside of which there is a deadbolt with bolt heads connected to a bolt shank plate on which a shank stand is mounted, spring-loaded code levers with code ledges and grooves mounted on the side of the shank rack with the possibility of their movement in the transverse the direction relative to the movement of the shank stand, characterized in that the bolt shank stand and code levers are provided with false teeth-shaped protrusions forming a false code groove, and the gap between the bolt shank post and the code groove in the code levers is equal to the clearance of the bolt shank strut in the false code groove of the code levers. 2. The lock according to claim 1, characterized in that the bolt is equipped with a locking means including a spring-loaded locking pin located in the cavity of a blind, transverse hole of the crossbar head and mating with a curly spring-loaded bar holding the pin in the cocked position and connected to the opposite side with a shank-resistant U-shaped gripper, and the body is equipped with an oval, longitudinally elongated locking hole located along the crossbar, opposite the open exit of the blind hole, with the possibility of spine locking bolt head movements when descending and locking in the plant oval hole of the locking pin in the destruction of the shank strut. 3. The lock according to claim 2, characterized in that the housing is provided with an additional locking hole located coaxially with the locking along the crossbar, so that the locking hole is offset from the end plate of the housing at the location of the open exit of the blind hole at maximum the extension of the bolt heads of the bolt, and the oval locking hole is located at the location of the open exit of the blind hole during the intermediate phase of the extension of the bolt heads when closing the bolt of the lock. 4. The lock according to claim 3, characterized in that the blocking hole is oval in shape. 5. The lock according to claim 4, characterized in that the blocking hole is made round. 6. The lock according to claim 4, characterized in that the blocking hole is longitudinally elongated. 7. The lock according to claim 1, characterized in that the shank stand is pressed into the bolt shank plate. 8. The lock according to claim 1, characterized in that the bolt shank rack is provided with a freely rotating metal ball pressed into the rack. 9. The lock according to claim 8, characterized in that the ball in the shank is made of heat-strengthened metal to a hardness of 60-62 HRCE. 10. The lock according to claim 1, characterized in that the locking pin is provided with a protective metal ball located between the blind base of the groove and the pin. 11. The lock according to claim 10, characterized in that the ball is made of heat-strengthened metal to a hardness of 60-62 HRCE. 12. The lock according to claim 1, characterized in that the code levers are placed on both sides relative to the bolt shank plate. 13. The castle according to any one of paragraphs. 1-12, characterized in that the rack of the bolt shank is made of a prismatic shape, and the angle of the teeth of the protrusions of the code levers lies within 93-105 degrees. 14. The castle according to any one of paragraphs. 1-12, characterized in that the code levers are additionally equipped with a cut-off levers mounted parallel to the code levers and spring-loaded relative to the housing having guide grooves in which the racks are placed to enable its plane-parallel movement, and the cut-off levers are equipped with a means for interacting with the lock code levers for joint movement, and also has a figured, mainly T-shaped, slot for inserting a key and ensuring plane-parallel movement of the cut-off levers when opening / closing the lock with a key, with overlapping the keyhole of the lock and placing the stalk of the key in the vertical section of the T-shaped slot of the cut-off levers when you first lift any of the code levers in the lock until the maze of code grooves of the code levers passes through the shank with the shank and the bolt is fully opened. 15. The lock according to claim 14, characterized in that the shank plate is provided with means for fixing the position of the cut-off levers in the raised state and returning it to its original position with the bolt fully open. 16. The lock according to claim 14, characterized in that the cut-off lever is L-shaped, where a horizontal bar is associated with each of the code levers of the castle and is located above the code levers. 17. The lock according to claim 16, characterized in that the vertical part of the L-shaped cut-off levers is equipped with a window mating with a labyrinth formed by code grooves of code levers. 18. The castle according to any one of paragraphs. 15-17, characterized in that the means for fixing the position of the cut-off lever in its raised state and returning it to its original state is made in the form of a protrusion of the shank plate, the height of which corresponds to the minimum height of the code locks of the lock, and the length corresponds to the longitudinal width of the window with a labyrinth of code ledges and grooves of code levers, with the possibility of automatic lifting, fixing the position in the process of opening the lock and lowering to the initial position of the cut-off levers after the bolt is fully opened.

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