RU176247U1 - LOCK WITH FUNCTION OF LOCKING AND DISABLING LATCHES - Google Patents

Abstract

The technical solution relates to a lock intended for installation in security doors, in particular, to lock structures with a function of locking and disengaging a latch. The lock with the function of locking and disengaging the latch comprises a housing with a lid, and a deadbolt with a shank mounted relative to the housing, a secrecy mechanism providing the possibility of input / output of the deadbolt into or out of the lock housing through mechanical connections, a latch, a spring-loaded lever pivotally mounted relative to the latch with the possibility of its movement together with the latch, and the spring-loaded lever is engaged with the first cam and in contact with the slider mounted movably in the housing on the corresponding st ykah housing, in turn, the first cam is operated lever handle with the possibility of disengaging from the spring-loaded lever bolt when extended. According to a utility model, the slider is mounted so that it can be controlled by the bolt shank so that when the bolt is pulled out of the lock body, the slider moves towards the latch, raising the spring-loaded lever until the kinematic connection of the lever with the first cam is disconnected, which makes it possible to lock and unlock the latch. The technical result, which the proposed technical solution is aimed at, is to increase the security properties of the lock by locking the latch and disengaging it from the control of the push handle when pulling the bolt, which allows to increase resistance to breaking. 1 s.p. f-ly, 5 ill.

Description

Technical field

The proposed utility model relates to a lock intended for installation in security doors, in particular, to lock structures with the function of locking and disengaging the latch.

State of the art

The closest technical solution to the proposed utility model is the design of the castle, according to patent RU 142627, publ. 06/27/2014. The lock according to the aforementioned patent contains a housing, a lid, a deadbolt with a shank, a latch pivotally connected to a spring-loaded lever engaged with a cam, when turned by a push handle, the latch is inserted into the housing, has a rocker mounted on a rack in the housing for rotation, which is in constant contact with the spring-loaded latch lever and the bolt shank, which, when the bolt is extended, rotates and raises the latch lever, disengaging it with the cam. In this case, the latch is held in the extended position only with the help of a return spring with the possibility of entering it into the housing by external influence through the gap between the door leaf and the door frame.

The disadvantage of this design is the lack of locking latch when it is disconnected from the control of the push handle with the bolt extended. The specified design is selected as a prototype.

Utility Model Disclosure

The technical result, which the proposed technical solution is aimed at, is to increase the security properties of the lock by locking the latch and disengaging it from the control of the push handle when pulling the bolt, which allows to increase resistance to breaking.

This problem is solved by creating a lock with the function of locking and disabling the latch containing the housing with a lid, and a deadbolt with a shank is installed in the housing, a privacy mechanism providing the possibility of input / output of the deadbolt into or out of the lock housing using a key, a latch, a spring-loaded lever pivotally relative to the latch with the possibility of its movement together with the latch, the spring-loaded lever being engaged with the first cam and in contact with the slider mounted movably in the housing according existing racks of the casing, in turn, the first cam is made by a controlled push handle with the possibility of disengaging it with a spring-loaded lever when the bolt is extended, and the slider is mounted with the ability to control its movement by the bolt shank so that when the bolt is pulled out of the lock case, the slider is shifted towards the latch by raising the spring-loaded lever until the kinematic connection of the lever with the first cam is disconnected, which makes it possible to lock and unlock the latch.

The lock may also comprise a second cam that is pivotally mounted and engaged with a spring-loaded lever, the second cam being pivotally connected to the pusher, and it is possible to actuate the cam and engage the latch using the key, acting on the pusher by means of a securing mechanism leash into the lock case without affecting the push handle.

Thus, the claimed technical solution, with its whole set of essential features, allows to increase the security properties of the lock by locking the latch and disengaging it from the control of the push handle when pulling the bolt, which allows to increase resistance to breaking.

Brief Description of the Drawings

In FIG. 1 shows a lock with the function of locking and disabling the latch with the cover removed when the lock is open (the bolt is pushed into the housing);

in FIG. 2 shows a lock without vertical rods;

in FIG. 3 shows a latch control mechanism;

in FIG. 4 shows a latch mechanism without a lever 6;

in FIG. 5 shows a general view of the castle;

Utility Model Implementation

The lock (Fig. 1-5) contains a housing 1, a cover 2, a bolt 3 with a shank 4, a latch 5, pivotally connected to a lever 6, which is engaged with the first cam 7 and in contact with the slider 8, mounted movably in the housing 1 on the uprights 9, 10. The cover 2 is a part of the castle, which provides protection of the elements of the castle, as well as their positioning and placement in the housing 1 of the castle. The cover 2 and the housing 1 can be connected by means of a bolted connection.

The lever 6 is pivotally mounted on an axis 11 mounted on the base 12 of the latch 5, and is preloaded by a spring 13 in the engaged position with the first cam 7. The cam is firmly connected to the sleeve 14, in which there is a square hole for the push handle. The lever 6 is also engaged with the cam 15, which is freely rotatable on the sleeve 14 relative to the sleeve and pivotally connected to the pusher 16. The slider 8 has a groove 17 with which a pin 18 engages on the bolt shank. Also, a window 19 is made in the slider, with which the pin 20 of the lever 6 contacts.

In the position when the lock is open, the deadbolt is inside the case, the latch fixes the door and is held by the spring 21. When the handle is pressed, the first cam 7 acts on the lever 6, which introduces the latch into the case. It is also possible to use the key, acting on the pusher 16 by means of a leash of a standard secrecy mechanism (not shown), to move the second cam 15 and insert the latch into the housing without using the push handle. Using this function, it is possible not to install a push handle on the outside of the door, which extends the functionality of the lock and can be relevant in some necessary uses of the lock.

The secrecy mechanism may be a mechanical unit that provides the ability to transfer the appropriate force to the elements of the lock through the key. For example, when you turn the key, which interacts with the elements of the mechanical unit, the leash secured in the design of the mechanism is moved, which can perform traction functions to drive the pusher 16.

When the bolt is extended during the first turn of the key, the pin 18 moves into the groove 17, the slider 8 moves towards the latch, acts on the pin 20, lifts the lever 6 and disconnects the kinematic connection of the latter with the first cam 7, and the protrusion 22 of the slider 8 stands against the surface 23 of the latch 5, blocks it, preventing the forced entry of the latch into the lock under possible impact. The locking of the latch and its disconnection from the control of the push handle allows, together with the bolt, to increase resistance to breaking and thereby increase the security properties of the lock.

Claims (2)

1. The lock with the function of locking and disengaging the latch, comprising a housing (1) with a cover (2), moreover, a deadbolt (3) with a shank (4) is installed in the housing, a privacy mechanism providing the possibility of input / output of the deadbolt (3) into the housing ( 1) the lock or out of it by means of a key, a latch (5), a spring-loaded lever (6) pivotally mounted relative to the latch (5) with the possibility of its movement together with the latch, the spring-loaded lever (6) being engaged with the first cam (7) and contact with the slider (8) mounted movably in the housing (1) to the corresponding their struts of the housing (9, 10), in turn, the first cam (7) is made controlled by a push handle with the possibility of disengagement with the spring lever (6) when pulling the bolt (3), characterized in that the slider (8) is installed with the possibility of control moving it by means of the bolt shank (4) so that when the bolt (3) is pulled out of the lock body (1), the slider (8) moves towards the latch (5), raising the spring-loaded lever (6) until the kinematic connection of the lever (6) is disconnected with the first cam (7), which provides the possibility of blocking from Locking latch. 2. A lock according to claim 1, characterized in that it comprises a second cam (15), mounted rotatably and engaged with a spring-loaded lever (6), the second cam (15) being pivotally connected to the pusher (16), it is possible using a key, acting on the pusher (16) by means of a secrecy mechanism, move the cam (15) and insert the latch (5) into the lock case (1) without affecting the push handle.

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