RU196718U1 - ARMOR COVER FOR CYLINDER LOCK - Google Patents

Abstract

The utility model relates to hardware and relates to an armor plate for protecting the cylinder mechanism of the lock, comprising an external element with a cavity blocking access to the cylinder mechanism, in which a protective washer and type plates are arranged without the possibility of axial movement: a protective plate having a key hole and internal plates with holes for the cylinder mechanism. In this case, the protective washer contains a hole for the key and has the ability to rotate about the axis of the cylinder lock cylinder. The protective plate is located with a gap relative to the cylinder mechanism and fixes a protective washer against possible longitudinal movement in the direction of key entry; the inner plates are made to cover the cylinder mechanism and fix the protective plate against possible longitudinal movement in the direction of key entry, while the stacked plates are made with the possibility of their fixation to the lock mechanism using an invisible fastener. This device has increased burglar resistance of the lock mechanism. 5 cp f-ly, 1 ill.

Description

The utility model relates to hardware and can be used to protect the cylinder mechanism of the lock as a mortise or overhead installation method.

The well-known “overlay for the cylinder mechanism” according to the utility model to the patent of the Russian Federation No. 140915, comprising a housing with an opening for the cylinder mechanism, the device structure being adapted both for fastening to the door leaf and directly to the cylinder mechanism. For this purpose, a recess is made in the housing, in which stops are arranged, which are capable of partially covering the surface of the cylinder mechanism and fixing to it by means of a secret fastening element. Thus, when installing the cylinder mechanism of the lock, the installer attaches to it and the pad, covering the cylinder mechanism of the lock with stops above and below. If the overlay is installed on the door leaf, then the overlay body is shifted relative to the cylinder mechanism by the required amount and is fixed with a secret fastener. If the pad is attached directly to the cylinder mechanism, no displacement is required.

This design allows you to mount the plate, both on the outer door leaf and on the lock, however, it does not protect the cylinder mechanism from drilling or knocking out.

Also known is “Rileyev’s protective armor plate for a cylinder lock” according to RF patent No. 2283406, comprising an external element with a cavity blocking access to the cylinder mechanism, in which a protective washer having a key hole is rotatably disposed. The protective washer is fixed in the external element due to the protective housing. In this case, the external element and the protective washer have the possibility of rotation and axial displacement relative to the lock mechanism, which prevents possible twisting or drilling. When trying to knock out a protective washer or drill with simultaneous axial action, the protective housing shifts inward, crushing the safety pin and breaking the electrical alarm circuit.

The design drawback is the complexity of the mechanism (due to the introduction of additional wiring and, as a consequence, the need for a power supply system, notifying the user about an attempt to hack, etc.). In addition, when trying to knock out the larva of the cylinder mechanism of the lock, the design does not provide for the redistribution of the shock load from the protective washer, for example, to more durable elements of the lock or door leaf, which indicates a low degree of burglar resistance.

The technical result of the invention is to increase the burglar resistance of the lock mechanism.

The indicated technical result is achieved in that the armor plate for protecting the cylinder mechanism of the lock, comprising an external element with a cavity blocking access to the cylinder mechanism, in which a protective washer having a key hole is rotatably located, is also axially displaceable in the cavity of the external element typesetting plates: a protective plate having a turnkey hole and internal plates with holes for a cylinder mechanism, the protective plate being located behind a gap with respect to the larva of the cylinder mechanism and fixes a protective washer against possible longitudinal movement in the direction of key entry; the inner plates fix the protective plate against possible longitudinal movement in the direction of key entry.

This constructive solution to the design of the armor plate for the cylinder mechanism of the castle allows you to increase the burglar resistance of the castle mechanism.

In the patent and scientific literature such design of the armor plate for the cylinder mechanism was not found by us.

The figure 1 shows: on the right is a front view of the armor plate for the cylinder mechanism; on the left is a rear view of the armor plate for the cylinder mechanism; in the middle - section AA of the armor plate for the cylinder mechanism in rear view.

The design of the armor plate to protect the cylinder mechanism of the lock, contains an external element 1, made in the form of a cylindrical body, blocking access to the cylinder mechanism (not shown). The following elements are located in the inner cavity of the external element 1: a protective washer 2 having a well for a key 3; protective plate 4 with a turnkey hole 5; inner plates 6 and 7 with holes 8 for the cylinder mechanism. The protective washer 2 is rotatably relative to axis 9 of the cylinder larva of the lock mechanism (not shown). There are a group of coaxial holes 10 for fastening the stacked plates to each other. In order to fix the armor plate on the lock mechanism, coaxial holes 11 are provided with threads in the inner plates 6, 7 and in the protective plate 4.

The armor plate for the cylinder mechanism operates as follows.

As can be seen from the presented design, the armor plate protects the cylinder mechanism due to the protective washer 2. When trying to drill through the key hole, the protective washer 2 rotates and prevents the drill from penetrating to the cylinder mechanism larva. When trying to drill through the external element 1 other elements of the lock mechanism, this will be prevented by the protective plate 4.

If you try to knock out the cylinder cylinder larva, the protective washer 2 redirects the load to the protective plate 4, and that, in turn, transfers it through the inner plates 6 and 7 to the lock or door case (if the overlay is installed on the door leaf).

This design decision of the armor plate for the cylinder mechanism of the castle allows you to increase the burglar resistance of the castle mechanism.

Claims (6)

1. An armor plate for protecting the cylinder mechanism of the lock, comprising an external element with a cavity blocking access to the cylinder mechanism, in which a protective washer is located rotatably having a key hole, characterized in that in the cavity of the external element, plate plates are arranged without the possibility of axial movement : a protective plate having a turnkey hole and inner plates with holes for a cylinder mechanism, the protective plate being located with a gap relative to the cylinder fur anism and fixes a protective washer against possible longitudinal movement in the direction of key entry; the inner plates are configured to cover the cylinder mechanism and fix the protective plate against possible longitudinal movement in the direction of key entry, while the stacked plates are made with the possibility of their fixation to the lock mechanism using a secret fastener. 2. An armor plate for protecting the cylinder mechanism of the lock according to claim 1, characterized in that the stacked plates have at least one coaxial hole provided with a thread for a countersunk fastener. 3. The armor plate for protecting the cylinder lock mechanism according to claim 2, characterized in that the countersunk fastener is a countersunk screw. 4. The armor plate for protecting the cylinder mechanism of the lock according to claim 2, characterized in that the stacked plates have a second group of coaxial holes that are designed to fix the stacked plates to each other with a fastener. 5. Armor plate for protecting the cylinder mechanism of the lock according to claim 4, characterized in that the fastening element is a riveting. 6. The armor plate for protecting the cylinder mechanism of the lock according to claim 1, characterized in that the protective washer and the protective plate are made of carbide material or hardened steel.

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