Anti-intrusion fence

Abstract

 Anti-intrusion fence, of utility for its assembly in the protection of enclosures, roads and long routes requiring the provision of a certain level of security, as well as in border zones, for the rapid, secure and reliable detection of any attempt to access via the fence, which is based on a series of posts, anchored in the ground, between which are fitted respective modules defined by a framework with a steel wire mesh in such a way that integrated into the mesh (3) of the modules (1), in the horizontal position, is at least one conducting wire (4) which defines a pre-sensorized detector of the mesh (3) being cut, with an anti-leap sensor being fitted on the top part of the modules (1) creating the fence along its entire length, defined by a pair of profiles (5) and (6) hinged together.

Description

DESCRIPTION

[0001] As stated in the title of this descriptive specification, the following invention relates to an anti-intrusion fence, being of special utility for its assembly in the protection of enclosures and roads requiring the provision of a certain level of security, as well as in border zones, with the aim of being able to detect rapidly, securely and reliably any attempt to access via the fence.

[0002] Furthermore, an important objective of the invention is to permit a reliable means to be obtained for the detection of possible attempts to cross and, at the same time, on account of its structure, offering no risk that those people who try to pass through will suffer accidents.

FIELD OF APPLICATION

[0003] This specification describes an anti-intrusion fence, which is of special application for being assembled in the protection of long perimetric routes, enclosures and roads which have to have a certain level of security. The fence device also has application in the protection of border zones.

BACKGROUND OF THE INVENTION

[0004] Conventionally, different means of fencing have been used in the protection of certain enclosures, so that among the structural systems used, in which no physical presence is required, we can consider that which consists of a wall ending in barbed wire without any element added to it.

[0005] Entering into a consideration of border fences with the aim of preventing crossing from one country to another, we can consider that system which consists of a pair of walls parallel to each other, installed along the entire length of the zone to protect and whose fences consist of support profiles between which a metal network is provided.

[0006] Likewise, in a first practical embodiment, the support profiles can end in their top part in at least one inclined section, with various rows of barbed wire being provided between those inclined sections.

[0007] In a second practical embodiment the support profiles can end in two inclined sections on both sides, with several rows of barbed wire being able to be provided between them, while in the upper central part between the two inclined sections, a "V" shaped space is defined in which a spiral roll of barbed wire can be laid.

[0008] With this design, ladders or other similar elements can be placed on the barbed wire provided between the inclined sections in which the support profiles end with the aim of gaining access to the top part of the fence and being able to cross the fence by laying some protective elements on the barbed wire, such as simple cardboard, in order to prevent cuts.

[0009] Equally, in relation to the inner face of the first protective wall, one or several spiral rolls of barbed wire can be provided, with these rolls being laid according to different arrangements.

[0010] The barbed wire defining the spiral roll can contain blades of different shapes, with the disadvantage that it can cause wounds of varying consideration to people trying to cross the fence.

[0011] This configuration has the drawback that, besides being non-infallible, people trying to "avoid" the described protection fence could suffer serious accidents, mainly as a consequence of severe cuts.

[0012] In addition, the utility model document ES 1 066 931 can be cited which describes a "Protective fence device", consisting of an array of posts anchored to the ground between which a mesh is provided defined by a rectangular frame of steel wire, an array of angle bars fitted in the top part of the mesh via one of its wings, with the other wing in an orthogonal position having a small lobe with a hole, a towline passing through the holes in the lobes of the angle bars, and a guide with a "U" shaped cross-section, integral with the mesh, between the posts, which houses a sensor defined by a transducer cable housing inside an optical fiber.

DESCRIPTION OF THE INVENTION

[0013] The present specification describes an anti-intrusion fence, being of special utility for its assembly in the protection of enclosures, roads and long routes requiring the provision of a certain level of security, as well as in border zones, with the aim of being able to detect rapidly, securely and reliably any attempt to access via the fence, which is based on a series of posts, anchored in the ground, between which are fitted respective modules defined by a framework with a steel wire mesh.

[0014] Starting from this structure, the anti-intrusion fence described in this specification is characterized in that:

• integrated into the mesh of the modules, in horizontal position, is at least one conducting wire which defines a pre-sensorized detector of the mesh being cut, and/or
• fitted on the top part of the modules conforming the fence, along its entire length, is an anti-leap sensor defined by a pair of profiles hinged together and kept in position by an array of springs, with a first profile being integral with the fence while the second profile has the possibility of rotating with respect to both sides of the plane vertical to the longitudinal axis of rotation, with an array of sensors for detecting the rotation of the second profile being incorporated between the two profiles.

[0015] The conducting wires, integrated into the mesh of the modules, have their ends loose with the possibility of connection to the wire of the adjacent module, in such a way that when installing the fence the conducting wires can be connected together along the length of the fence.

[0016] In a preferred embodiment of the invention, integrated into the mesh of the modules are two horizontal parallel conducting wires, located in such a way that in the event of a possible cut to the mesh in order to create a gap to pass through, one or the other of the wires is cut and triggers an intrusion alarm.

[0017] The first profile integral with the upper side of the modules of the wire mesh presents a "U" shaped general cross-section, being seated on it via the outer side of its core and with one of its wings straight and the other wing being curved.

[0018] Moreover, the outer side of the core of the first profile integral with the fence presents separate orthogonal projections that define a recess in the form of an inverted "U", fitting into the upper side of the frame of the corresponding module and being secured to it by screws in the horizontal direction of those projections.

[0019] Furthermore, the second profile hinged to the first profile with respect to the free end of its straight wing presents a "U" shaped general form with an extension by way of a visor with respect to one of its wings, while the other wing has a curvature similar to the curvature of the curved wing of the first profile.

[0020] The array of sensors, housed in the space defined by the pair of upper profiles, is defined by a part integral with the first profile integral with the upper side of the frame of the modules between posts and a part integral with the second profile hinged to the first profile.

[0021] The array of sensors is connected to a control center.

[0022] In addition, the array of sensors is controlled and located in accordance with a predetermined length along the entire length of the fence.

[0023] The second profile hinged to the first profile forming the anti-leap sensor has the outer surface of its core slightly convex towards the outside, with a series of longitudinal projections.

[0024] The springs that keep the pair of profiles making up the anti-leap sensor in position will be rated at a certain strength, so they can rotate in both directions in the event of any attempt to pass through, while on the other hand, for example, birds can perch on them without triggering the alarm.

[0025] In order to complement the description that is going to be made forthwith, and with the aim of facilitating a better understanding of the characteristics of this invention, this specification is accompanied by a set of plans containing figures in which, on an illustrative rather than limiting basis, the most characteristic details of the invention have been represented.

BRIEF DESCRIPTION OF THE DESIGNS

[0026] 

Figure 1. Shows a side elevation view of the anti-intrusion fence provided with an anti-leap sensor in its top part, said sensor being in its natural rest position.

Figure 2. Shows a view in detail of the anti-leap sensor, relative to the previous figure, in which it can be seen how it is defined by a pair of profiles hinged together, associated with which profiles are some rotation detector sensors.

Figure 3. Shows a side elevation view of the anti-intrusion fence provided with an anti-leap sensor in its top part, in which, when a ladder is rested with the aim of leaping over it, an alarm will be triggered.

Figure 4. Shows a view in detail of the anti-leap sensor, relative to the previous figure, in which it can be seen how, as a consequence of resting the ladder, one of the profiles has rotated, the sensors detecting that rotation and triggering the alarm.

Figure 5. Shows a side elevation view of the anti-intrusion fence provided with an anti-leap sensor in its top part, in such a way that, when it is pressed on, it causes rotation of one of the profiles it comprises.

Figure 6. Shows a view in detail of the anti-leap sensor, relative to the previous figure, in which it can be seen how, as a consequence of the pressure on top, for example, by trying to leap over it, the rotation of one of the profiles takes place in the opposite direction to that shown in figure 4, the sensors detecting that rotation and triggering the alarm.

Figure 7. Shows a front view of one of the modules making up the fence defined by a frame with a steel wire mesh, with a pair of conducting wires detecting the cutting of the mesh having been represented.

Figure 8. Shows a view in detail of the pair of profiles housing the anti-leap sensors, with a spring having been schematically represented for keeping these profiles in the natural rest position.

DESCRIPTION OF A PREFERRED EMBODIMENT

[0027] With the said figures in view and in accordance with the adopted numbering, it can be observed how the anti-intrusion fence will be made up of a series of posts, anchored to the ground, between which are assembled respective modules 1 defined by a frame 2 with a steel wire mesh 3, in such a way that integrated into the steel wire mesh 3 of the modules 1, in horizontal position, is a pair of horizontal conducting wires 4 which define a pre-sensitized detector of the mesh 3 being cut.

[0028] The pair of conducting wires 4 will be fitted in position at the actual moment of manufacture of the modules 1, so that, once connected, in the event of any attempt to cut the steel wire mesh 3 at least one of the conducting wires 4 will be cut, triggering the alarm indicating an attempt to pass through the mesh 3 of the modules 1.

[0029] Moreover, the conducting wires 4, integrated into the mesh 3 of the modules 1, are left with their ends loose with the possibility of connection to the conducting wires of the adjacent module, so that, when assembling the fence they will be able to be connected along its entire length.

[0030] Although in a preferred embodiment of the invention two conducting wires 4 will be strategically located, the number of conducting wires 4 will be able to be variable.

[0031] Therefore, the conducting wires 4 will be able to be connected or not.

[0032] The steel wire mesh 3 is created in such a way that it is not possible to insert one's fingers inside it in order to climb up the mesh.

[0033] Moreover, incorporated into the top part of the modules 1, in other words, on the frames 2, making up the anti-intrusion fence, is an anti-leap sensor fitted along its entire length, defined by a pair of profiles 5 and 6 hinged together and kept in position by an array of springs 7, so that a first profile 5 is integral with the fence and the second profile 6 has the possibility of rotation with respect to both sides of the plane vertical to the axis 8 of rotation, with an array of sensors 9 for detecting the rotation of the second profile 6 being incorporated between those two profiles 5 and 6.

[0034] So, the detector sensors 9 are housed in the enclosed space defined by the profiles 5 and 6 and are perfectly protected and integrated into the mechanical mechanism.

[0035] The first profile 5 integral with the top part of the fence has a "U" shaped general cross-section being seated on it via its core 10 on the upper frame of the modules 1 and with one of its wings 11 straight and the other wing 12 curved.

[0036] Moreover, the core 10 of the first profile 5 integral with the fence presents separate orthogonal projections 13 that define a recess in the form of an inverted "U", fitting into the upper side of the frame of the corresponding module 1 and being secured to it by screws in the horizontal direction.

[0037] The second profile 6 hinged to the first profile 5 with respect to the free end of its straight wing 11 presents a general "U" shaped form with an extension 14 by way of a visor with respect to one of its wings 15, while the other wing 16 has a curvature similar to the curvature of the curved wing 12 of the first profile 5.

[0038] The array of sensors 9, housed in the space defined by the pair of upper profiles 5 and 6, are defined by a first element integral with the first profile 5 and a second element integral with the second profile 6 hinged to the first profile 5.

[0039] In the natural rest position of the pair of profiles 5 and 6 making up the anti-leap sensor they are kept in position by means of an array of springs 7 rated at a certain strength, so that when the second profile 6 hinged to the first profile 5 is rested on or pressed, the rotation of it will take place in one direction or the other, the sensors detecting said rotation and triggering the alarm due to an attempt to leap over the fence.
This sensor system offers the following advantages:

• Absolute reliability in the detection of the attempt to leap over the fence.
• Absolute absence of false alarms due to any other event that is not an attempt to leap over.
• Total immunity to:
  • Meteorological factors;
  • Vibrations;
  • Passage of trains or vehicles in the vicinity;
  • Radio-electrical interference.

[0040] The array of sensors 9 is connected to a control center to which it communicates the alarm for acting in consequence.

[0041] In addition, the array of sensors 9 is controlled and located in accordance with a predetermined length along the entire length of the fence.

[0042] So, given that the fence can extend along spaces of the desired length, in the case of long routes, which is the most usual situation, it will be divided into sectors of, for example, 10 km, consisting of a number of 40 zones of 250 m, in such a way that an analyzer will be provided for controlling two zones, with 20 analyzers thus being provided for each sector.

[0043] Each sector will have a connection point to an optical fiber for the transmission of alarms and control of that sector.

[0044] In this way, each zone with a length of 250 m is a single alarm element for detecting an attempt to leap over, permitting the point of intrusion to be identified.

[0045] The analyzers, mounted one for every two zones, will be connected together and will have a power supply source. Moreover, the installation will have a master unit for grouping the communications of an entire sector of fence, in such a way that each master unit will be able to control 20 analyzers.

[0046] The second profile 6 hinged to the first profile 5 forming the anti-leap sensor has the outer surface of its core slightly convex towards the outside, with a series of longitudinal projections 17 preventing birds of a certain weight from perching on it.

[0047] The springs 7 that keep in position the pair of profiles 5 and 6 making up the anti-leap sensor will be rated at a certain strength keeping them in the static position, so that said rated force will permit birds to perch without the profile 6 rotating and triggering the alarm.

[0048] In figures 1 and 2, it can be seen the relative position adopted by the sensors 9 in the natural rest position, while in figures 3, 4, 5 and 6 it is shown the relative position that the sensors 9 adopt depending on whether the profile 6 rotates in one direction or the other, in the event of an attempt to leap over the fence.

Claims

1. ANTI-INTRUSION FENCE, being of special utility for its assembly in the protection of enclosures, roads and long routes requiring the provision of a certain level of security, as well as in border zones, with the aim of being able to detect rapidly, securely and reliably any attempt to access via the fence, which is based on a series of posts, anchored in the ground, between which are fitted respective modules defined by a framework with a steel wire mesh, characterized in that:

- integrated into the mesh (3) of the modules (1), in horizontal position, is at least one conducting wire (4) which defines a pre-sensorized detector of the mesh (3) being cut, and/or

- fitted on the top part of the modules (1) conforming the fence, along its entire length, is an anti-leap sensor defined by a pair of profiles (5) and (6) hinged together and kept in position by an array of springs (7), with a first profile (5) being integral with the fence and the second profile (6) being kept in a position with the possibility of rotating with respect to both sides of the plane vertical to the axis (8) of rotation, incorporating between the two profiles (5) and (6) an array of sensors (9) for detecting the rotation of the second profile (6).

2. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the conducting wires (4), integrated into the mesh (3) of the modules (1), have their ends loose with the possibility of connection to that of the adjacent module.

3. ANTI-INTRUSION FENCE, according to claims 1 and 2, characterized in that integrated into the mesh (3) of the modules (1) are two horizontal parallel conducting wires (4).

4. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the first profile (5) integral with the fence presents a general "U" shaped cross-section, being seated on it via its core (10) and with one of its wings (11) straight and the other wing (12) curved.

5. ANTI-INTRUSION FENCE, according to claims 1 and 4, characterized in that the core (8) of the first profile (5) integral with the fence presents separate orthogonal projections (13) that define a recess in the form of an inverted "U", fitting into the upper side of the frame (2) of the corresponding module (1) and being secured to it by screws in the horizontal direction.

6. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the second profile (6) hinged to the first profile (5) with respect to the free end of its straight wing (11) presents a general "U" shaped form with an extension (14) by way of a visor with respect to one of its wings (15), while the other wing (16) has a curvature similar to the curvature of the curved wing (12) of the first profile (5).

7. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the array of sensors (9), housed in the space defined by the pair of upper profiles (5) and (6), is defined by a part integral with the first profile (5) integral with the upper side of the modules between posts and a part integral with the second profile (6) hinged to the first profile.

8. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the array of sensors (9) is connected to a control center.

9. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the array of sensors (9) is controlled and located in accordance with a predetermined length along the entire length of the fence.

10. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the second profile (6) hinged to the first profile (5) forming the anti-leap sensor has the outer surface of its core slightly convex towards the outside, with a series of longitudinal projections (17).

11. ANTI-INTRUSION FENCE, according to claim 1, characterized in that the springs (7) that keep in position the pair of profiles (5) and (6) making up the anti-leap sensor will be rated at a certain strength keeping them in the static position.

Drawing