RU2350727C1 - System for preventing unauthorised access into room - Google Patents

Abstract

FIELD: means of protection.

SUBSTANCE: present invention pertains to alarm systems during unauthorised attempts to access rooms, for example, opening a door by breaking a lock visible from the outside. The system for preventing unauthorised access into a room has a locking device for the door and, at least one locking device not visible from outside, for example, remotely opened, fitted with the capability only when the door is ajar and preventing it from opening any further.

EFFECT: preventing the entry of an intruder into a room after breaking the locking devices visible to him, at least till the arrival of the guards, or preventing any other attempts of entering the room.

5 cl, 2 dwg

Description

The invention relates to alarm systems for attempts to unauthorized entry into a room, for example, when opening a door by breaking a visible locking device from the outside.

Known alarm system for unauthorized entry into the room, containing at least one visible outside locking device of the door, as well as a sensor for monitoring the locked position of the door connected to the transmission unit of the alarm signal to an external receiving device. In addition, it additionally contains, as an attacker’s bait, a camera with a flash and a certain electromechanical device for capturing an attacker, which is located near the camera (see RU 2066475, G08B 13/08, published on 09/10/1996). In this system, an attempt was made not only to inform the guard about a hack, but also to detain an attacker if they succeeded in misleading him with the aforementioned additional means. The disadvantages of the analogue include both high cost and complexity, and low efficiency, since after breaking the locking devices on the doors, an attacker has the opportunity to act indoors for some time before the security arrives, and it’s not at all a fact that he will succumb to the above trick system developers.

A known alarm system for unauthorized entry into the room, containing two visible outside locking devices of the door, one of which is designed to indicate unauthorized entry into the room and transmit an alarm to an external receiver (see US 7158029 B1, US C1, 340 / 545.7, published on January 2, 2007).

The disadvantages of the known device include the fact that the alarm for some time before the arrival of the guard does not prevent the cracker from stealing objects and valuables in the room.

This device is the closest analogue of the claimed invention in terms of features and the achieved result (prototype).

The invention solves the problem of preventing an attacker from entering the premises after breaking into visible (usually with one or another keyhole) locking devices, at least until the arrival of security or to force him to stop further attempts to enter the room.

In the invention, a technical solution to this problem is achieved by the fact that the system is equipped with at least one locking device that cannot be detected externally, for example, that can be opened remotely, mounted with the possibility of only opening the door and preventing further door opening in the absence of a signal to open this locking device.

In the invention, it is proposed to use a locking device made as a possible variant of a locking device that cannot be detected externally, made in the form of a pivoting hook, spring-loaded to the side of locking, having an end protrusion with inlet and working sections facing each other, and also adjacent to the working section a free-wheeling section, and placed on a base fixed on a door frame, a hook fixation unit and an electromagnetic hook fixation drive, When this toe latch portion is formed as a fixed based on the fixed protrusion, facing towards the toe end projection, and the rotary stop claw mounted on the base with the back side of a hook, and an electromagnetic actuator unlocking claw is kinematically coupled with the rotary stop hook.

The positive effect of the use of the invention can be enhanced due to the fact that the system is equipped with a sensor for monitoring the closed position of the door connected to the alarm device, while an undetectable locking device is mounted with the possibility of ajar doors only until the specified sensor is triggered. The alarm device can be made in the form of a block for transmitting an alarm signal to an external receiving device, and as an external receiving device, a remote control panel for receiving alarm signals of private security of the district can be used.

The invention is illustrated by drawings, where in Fig.1 shows a burglar alarm system, and Fig.2 is a General view of an undetectable locking device from the outside.

The system for preventing unauthorized entry into the room contains mounted at the door 1, at least one external locking device 2 and at least one external locking device 3 that can be opened by means of a control unit 4 that is activated remotely from the wearable code key 5, for example a key fob, as in automotive door unlocking devices. Another possible option would be to use a control unit 4 and a code key 5 operating on infrared rays, provided that the receiver of infrared rays from the code key 5, for example, in the form of a masked LED connected to block 4 (not shown) is made undetectable outside.

An undetectable locking device 3, installed, for example, as shown in FIG. 1, indoors above the door 1, should provide, when there is no signal to open it from the code key 5, the door 1 will be opened at a minimum distance, providing only the possibility of operation of the closed sensor door position 6 (in practice, less than 10 mm for reed sensors). In any case, the end face 7 of the door 1 with the indicated ajar should not go beyond the door frame 8, so as not to facilitate the attacker the possible power breaking of the door 1.

The sensor for monitoring the closed position of the door 6 can be connected to an alarm device 9, which can be used, for example, sound or light alarm mounted indoors (or masked outside). The alarm device 9 can be made in the form of a wired or wireless unit for transmitting an alarm signal to an external receiving device 10. As an external receiving device 10, a remote control panel for receiving alarm signals of private security of the district can be used. Another possible embodiment of the external receiver 10 may be a mobile phone.

An undetectable locking device 3 comprises a pivoting hook 11 mounted on the door 1, spring-loaded towards the locking side, having an end protrusion 12 with inlet 13 and working 14 sections facing each other, as well as a free-wheeling section adjoining the working section 15. On the door frame 8 fixed base 16 of the device 3, made, as an option, in the form of a steel pipe of a rectangular profile (not shown). On the basis of 16, a fixed protrusion 17 is made, facing the end protrusion 12 of the hook 11. The hook 11 is spring-loaded relative to its axis 18 towards the locking side. On the rear side 19 of the hook 11, a pivoting stop 20 of the hook 11 is mounted kinematically connected, for example, by means of a spring-loaded lever 21 with a movable armature 22 of the electromagnetic drive 23 for securing the hook 11.

The system to prevent unauthorized entry into the room is as follows.

Suppose an attacker does not initially assume that this room is equipped with the claimed system for preventing unauthorized entry into the room and opens the lock 2 visible from the outside. However, then, trying to open door 1, he makes sure that door 1 only slightly opens, held by an undetectable locking device 3 Since the cracker cannot penetrate the room, he cannot know what signaling device the room is equipped with. He has an alternative: to retire or continue to break in the door with the risk of being captured by security, for example, private, quickly arriving at the scene if the premises were armed. In other possible cases, depending on a particular version of the system to prevent unauthorized entry into the room, an audible or light alarm is triggered, attracting the attention of others with all possible consequences. It should be noted that closing the door by the cracker will not lead to anything: after a short set time, the alarm signal can go to the remote security department. It is important to emphasize that the equipment of the room with even the simplest system to prevent unauthorized entry into the room according to claim 1 of the formula of the present invention can significantly reduce the percentage of thefts.

If the system of unauthorized entry into the room is equipped with all the elements shown in figure 1, it works as follows. After breaking the locking device 2, the cracker tries to open the door 1, but it only opens slightly, held by the device 3, and does not let the cracker inside the room. In this case, the sensor 6 is triggered and sends a signal to open the door 1 to the alarm device 9, which in turn transmits it to the remote security department 10 with all the ensuing consequences for the cracker. In the case of authorized opening of the premises, the alarm signal is removed from the external receiving device 10 in the usual way, for example, by telephone.

As a non-detectable locking device 3, in principle, any invisible lock mounted with the possibility of only opening the door a bit and preventing further door opening in the absence of a signal to open this lock can be used. However, the best today to achieve these goals is a locking device protected by patent RU No. 2266383 and presented in figure 2 of the present description.

This device operates as follows.

When closing the door 1, the hook 11 with its entry section 13 runs onto the stationary protrusion 17 and rotates about its axis 18 and at the same time deflects the stop 20. When the door 1 is further closed, the spring-loaded swing hook 11 and the swing stop by the spring lever 21 are rotated to their original position and when the door 1 is completely closed, they occupy the positions shown in FIG.

When the door 1 is opened, the hook 11, thanks to the free-running portion 15, freely moves together with the opened door 1 to the fixed protrusion 17, after which, resting against it by the working section 14, it stops together with the door 1. The hook 11 in the absence of a signal to open the device from the code key 5 cannot rotate around its axis 18, since with its rear side 19 it abuts against the stop 20 and cannot disengage from the stationary protrusion 17. When a signal is sent to open the device from the code key 5, the control unit 4 connects power to an electromagnetic actuator 23, the movable armature 22 of which retracts the pivot stop 20 from the rear 19 of the hook 11. If you now apply the opening force to the door 1, the hook 11 when you turn the door 1 will begin to slip with its working section 14, and then its starting section 13 along the stationary protrusion 17, thereby coming out of engagement with him. The door 1 is open and the power supply from the electromagnetic drive 23 can be turned off.

Claims (5)

1. The system of preventing unauthorized entry into the room, containing one or more visible from the outside locking devices of the door, characterized in that it is equipped with at least one not detectable from the outside locking device, for example, remotely opened, mounted with the possibility of only opening the door and preventing further opening of the door in the absence of a signal to open this locking device. 2. The system for preventing unauthorized entry into the premises according to claim 1, characterized in that the locking device that is not detectable from the outside is made in the form of a door fastener, spring-loaded towards the locking side of the swing hook, having an end protrusion with facing and working sections facing each other, and also adjacent to the working section of the freewheel, and located on the base, fixed on the door frame, the fixation unit of the hook and the electromagnetic drive of the release of the hook, while the hook fixation unit is made in the form of a fixed protrusion fixed to the base and facing the end protrusion of the hook and a rotary stop of the hook mounted on the base from the back of the hook, and the electromagnetic drive of the release of the hook is kinematically connected with the rotary stop of the hook. 3. The system for preventing unauthorized entry into the room according to claim 1, characterized in that it is equipped with a door closed position monitoring sensor connected to an alarm device, while a lock device not detectable from the outside is mounted with the possibility of opening the door only until the specified sensor is triggered. 4. The system for preventing unauthorized entry into the room according to claim 3, characterized in that the alarm device is made in the form of a block for transmitting an alarm signal to an external receiving device. 5. The system for preventing unauthorized entry into the premises according to claim 4, characterized in that the remote reception of alarm signals of private security of the area is used as an external receiving device.

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