RU151587U1 - Fencing - Google Patents

Abstract

1. The fence containing racks for installation around the perimeter of the enclosed area and mesh panels made of steel wire mounted on racks, as well as connecting elements, while mesh panels are made in the form of interconnected intersecting rods that are welded together, characterized in that the mesh panels are overlapped with each other. 2. The fence according to claim 1, characterized in that it contains a security tool, which is made in the form of a video surveillance system containing video cameras mounted on poles in a fenced area. 3. The guard according to claim 2, characterized in that the safety means comprises vibration sensors connected by electrical connections to a computer. The fence according to claim 3, characterized in that the vibration sensors are installed in the ground in front of a metal mesh cloth. 5. The fence according to claim 1 or 2, characterized in that it is equipped with an external anti-climbing device. 6. The fence according to claim 1 or 2, characterized in that it is equipped with an external anti-climbing and internal anti-climbing devices. 7. The fence according to claim 6, characterized in that wire spirals are installed between the external and internal anti-climbing devices. The guard according to claim 5, characterized in that vibration sensors are installed on the anti-climbing device. The fence according to claim 1 or 2, characterized in that the rods of adjacent mesh panels are overlapped on racks. 10. The fence according to claim 1 or 2, characterized in that the rods of adjacent mesh panels are lapped together outside the racks using metal clamps

Description

The utility model relates to technical means of protecting objects and can be used to protect the perimeters of sensitive objects for various purposes from intruders, vehicles, domestic and wild animals.

Known mesh fencing according to the patent of the Russian Federation for utility model No. 134179, IPC E01F 7/00, publ. 01/10/2013

Mesh fence from rock-landslide phenomena, containing vertical supports of metal pipes fixed in the ground, a mesh cloth placed between the supports and cable braces, anchored in the rock from the upland side of the fence, characterized in that, in order to increase reliability and efficiency from rock-landslide phenomena, the mesh fabric consists of separate flat elements made of double torsion mesh and chain mail, which are attached to the upper and lower longitudinal ropes located between vert -trivial supports, the upper edge of the chain mail is fixed to the longitudinal grid rope by means of screw clamps and aluminum sleeves and the lower longitudinal edge with a rope attached to ground anchors.

The disadvantage is a highly specialized appointment.

Known fencing according to the patent of the Russian Federation for utility model No. 136843, IPC E04H 17/00, publ. January 20, 2014

The fence containing sections, each of which is mounted on poles made of metal pipes of round or rectangular cross section and buried in the ground at 0.3-0.7 of its length, a gate and / or a gate, and consists of at least two transverse logs, on which a fence is fixed, characterized in that the logs are made of rectangular metal pipes, and the fence is in the form of metal plates with flanges on the sides and attached to the logs on both sides in a checkerboard pattern so that the gaps between the rod ICOM fixed on one side, closed picket fence attached to the other side, while the right-hand flanging the fence located on one side lag and left picket flange disposed on the other side lag connected one fastening element.

The disadvantage is large metal consumption.

Known mesh fencing according to the patent of the Russian Federation for utility model No. 136842, IPC E01H 17/00, publ. January 20, 2014

Mesh fence containing columns made of metal pipes of round or rectangular cross section and buried in the ground by 0.3-0.7 of its length, a gate and / or gate and mesh panels fixed to them, characterized in that the mesh panels are formed of galvanized horizontal and vertical rods interconnected, and the distance between the horizontal rods is 3-4 times greater than the distance between the vertical rods, and the mesh panels are given a non-planar shape, and they are attached to poles, a thief there and / or the gate by U-shaped brackets with plates, fixable via mounting devices.

Lack of lack of security features.

Known mesh fencing according to the patent of the Russian Federation for utility model No. 132,470, IPC E01H 17/14, publ. September 20, 2013

A nozzle for a fence post with an additional safety barrier, including a base mounted on a pole with one or more peaks for installing an additional safety barrier, characterized in that the visor or peaks are fixed to the nozzle base with the help of rotary and locking mechanisms, while the visor is in the rotary mechanism mounted with the possibility of radial rotation relative to the base of the nozzle, and in the locking mechanism is fixed at a strictly specified angle relative to nozzle base.

Disadvantages: high metal consumption and lack of safety features.

Known mesh fencing according to the patent of the Russian Federation for utility model No. 131781, IPC E04H 17/00, publ. 08/27/2013

A metal fence containing poles, logs and a fence in the form of corrugated metal sheets, characterized in that the metal poles are made of two P-, Σ- or C-shaped profiles connected by walls, the ends made of P-, Σ- or C- A profile-shaped lag is inserted into the grooves of the posts, with the lower lag oriented with the open part up and the upper lag oriented with the open part down, and the corrugated metal sheets are located between the lags, while the fence parts are interconnected using a x fasteners.

Disadvantages: high metal consumption and lack of safety features.

Also known external fence according to the patent of Russian Federation No. 2266382, IPC E04H 17/14, publ. December 20, 2005, which is a mesh fence for guarding the perimeters of objects, containing support racks, a mesh web and a cable sensing element, in which the support racks are made of three parts having different stiffness due to a change in the cross section of the profile of each part in shape - from the box in the lower part to the U-shaped in the middle and upper parts, and in area that decreases with the transition from the middle to the upper.

The disadvantages of this fence are the complexity of the construction of composite racks with extensions, low accuracy of detecting impact on the mesh, especially with a single damage, high cost, complexity of maintenance, the possibility of a large spread in the parameters of coverage of the mesh and racks, which is due to the low durability in difficult climatic conditions.

Known fencing according to the patent of the Russian Federation for utility model No. 65538, EN 17/02 IPC, publ. 08/10/2007, the prototype.

This fence contains supporting racks for installation around the perimeter of the enclosed area and a metal mesh cloth installed on the racks, as well as connecting elements and safety equipment, while the mesh cloth is made in the form of mesh panels connected from each other and sequentially stretched along the perimeter of galvanized steel wire whose intersecting rods are welded together.

The disadvantages of this technical solution: the high cost of fencing mesh due to the hardening of its wire. Known fencing from the Internet site http: //, prototype.

This fence contains racks for installation around the perimeter of the enclosed area and mesh panels made of steel wire mounted on racks, as well as connecting elements, while mesh panels are made in the form of interconnected intersecting rods that are welded together.

The disadvantage is its low reliability due to the fact that for penetration it is enough to destroy one connecting element. After its destruction, you can move one mesh panel so that between it and the rack a hole is formed sufficient for human penetration.

The task of creating a useful model of the reliability of the fence.

Achieved technical result: increased reliability of the fence due to overlap.

The solution to these problems was achieved in a fence containing racks for installation around the perimeter of the enclosed area and mesh panels made of steel wire mounted on racks, as well as connecting elements, while mesh panels are made in the form of interconnected intersecting rods that are welded together , in that the mesh panels are lapped onto each other. The fence may contain a security tool, which is made in the form of a video surveillance system containing video cameras mounted on poles in a fenced area. The security tool may include vibration sensors that are electrically connected to a computer. Vibration sensors can be installed in the ground in front of a metal mesh cloth. The guard may be provided with an external anti-climbing device. The fence can be equipped with an external antirelapse and internal antirelapse devices. Wire spirals can be installed between the external and internal anti-climbing devices. Vibration sensors can be installed on the anti-climbing device. The bars of adjacent mesh panels can be lapped together on racks. The bars of adjacent mesh panels can be lapped together outside the racks using metal plate clamps. Mesh panels can be connected to the racks by a connecting wire loop, and adjacent mesh panels are overlapped by means of metal plate clamps. Welded seams of the mesh panels can be facing the outside of the fence. Fence posts can be installed on the outside of the fence. Racks can be made of cold rolled sheet steel with a longitudinal weld. Mesh panels can be installed directly on the ground. Mesh panels may be partially buried in the ground. With mesh clamps, a protopod device can be attached to the mesh panels in the form of an additional mesh web partially buried in the ground. Vibration sensors can be installed above the underbody guard. Reinforced concrete structures can be installed between the mesh panels and the ground.

The essence of the utility model is illustrated in the drawings of FIG. 1 ... 18, where:

- in FIG. 1 shows a fencing scheme with a video surveillance system,

- in FIG. 2 shows a diagram with vibration sensors,

 - in FIG. 3 shows a straight runoff,

- in FIG. 4 shows "G" - shaped rack,

- in FIG. 5 shows a support with a V-shaped upper part,

- in FIG. 6 shows a fence with an external anti-climbing peak,

- in FIG. 7 - a fence with external and internal anti-climbing devices - and a spiral,

- in FIG. 8 - shows a connection diagram of mesh panels,

- in FIG. 9 - shows a fence with a vertical anti-trench device,

- in FIG. 10 - shows the fence with antislip device g "- shaped,

- in FIG. 11 - shows the attachment of the mesh panel to the rack in the form of a wire loop,

- in FIG. 12 - shows a single clamp from a metal plate,

- in FIG. 13 shows a diagram of the fastening of the mesh panel to the rack and the plug,

- in FIG. 14 - shows a double clamp from a metal plate,

- in FIG. 15 shows a layout of vibration sensors on an anti-trench device,

- in FIG. 16 shows a layout of vibration sensors above an anti-trench device,

- in FIG. 17 shows a layout of vibration sensors on an anti-climbing device,

- in FIG. 18 shows a fence mounted on a concrete fence.

The fence (Fig. 1 ... 18) is designed to protect the protected area 1 and contains mesh panels 2 mounted on racks 3 for installation around the perimeter of the protected area 1. Mesh panels 2 are made of steel wire, the intersecting rods of which are welded together and hot-dip galvanized galvanizing with an alloy changing from 25% to 94% towards the outer surface. zinc. The coating thickness is a value providing a density of the zinc coating of at least 0.29 kg / m ² . The fence is equipped with a security system, which contains a video surveillance system. The video surveillance system diagram is shown in FIG. 1. In the protected area 1, posts 4 are installed on which video cameras are mounted 5. Video cameras are made with the possibility of horizontal and vertical rotation. Video cameras 5 are connected by electrical connections 6 to video signal transmitters 7, the outputs of which are connected by optical fiber 8 to video receivers 9, the output of which is connected by electrical connection 6 to the input to computer 10 (system unit) Monitor 11, keyboard 12 are connected to computer 10 by electrical connections 6 and a mouse-type manipulator 13 (FIG. 1). 5 IR cameras can be used to ensure safety in the dark. The security system can be additionally equipped with lighting, warning and sound alarm systems.

Optical fiber video transmission.

Highly reliable fiber optic systems for transmitting video signals and data over long distances. In recent years, fiber-optic systems have become more often used for high-speed transmission of analog and digital video signals not only in cable television systems, but also in geographically distributed video surveillance systems. With low losses, the fiber optic communication line is capable of transmitting video signals over distances of up to tens of kilometers without the use of intermediate amplifiers. As a rule, the frequency of video signal transmission through fiber-optic systems is more than 10 billion bit / s and, in some cases, may exceed the speed and amount of information required to solve specific video surveillance problems. Therefore, fiber-optic systems are most often used at critical video surveillance facilities, or for transferring large amounts of information, including video signals.

The modern fiber used in fiber systems is transparent glass fibers that conduct light from one end to the other with minimal loss due to the effect of total internal reflection. Structurally, such an optical fiber consists of a core, an optical cladding and a protective cladding. The core and the optical shell are usually made of glass, less often plastic, the protective shell, usually made of plastic. The core of the optical fiber transmits a light signal, and the optical cladding provides complete internal reflection of light in the core and its passage along the entire length. The protective sheath is designed to protect the core and optical sheath from external influences. The thickness of the optical fiber is comparable to the thickness of a human hair (125 microns - optical fiber, 85 microns - hair).

Currently, the industry produces two types of optical fiber: single-mode optical fiber - with one path of the video signal propagating through the core of the optical fiber and multi-mode optical fiber - with several paths of light wave propagation through the optical fiber. In this case, multimode fiber provides signal transmission over distances of 1-5 km, and single-mode fiber - for tens of kilometers. This is explained by lower signal loss in a single-mode fiber compared to a multi-mode one. At the same time, single-mode fiber is much more expensive than multi-mode fiber. However, fiber-optic video surveillance systems most often use multimode fiber, since it is necessary to carry out not only the transmission of the video signal, but also the audio signal and control signals.

Typically, a fiber optic system includes a video signal transmitter, a video signal transmitter that converts electrical video signals into optical radiation, a video receiver a video signal receiver that converts optical radiation back into electrical video signals, and the optical fiber itself connecting the transmitter and receiver. With extremely low losses, fiber-optic systems can transmit video signals over distances of up to several tens of kilometers without the use of intermediate amplifiers, far surpassing coaxial and wired video signal transmission systems in this parameter. Another feature of fiber-optic systems is their high throughput, which is due to the high frequency of oscillations of light waves propagating through the fiber. The transmission speed of video signals through fiber-optic systems is limited only by the bandwidth of the transmitting and receiving module of the system, and can be more than 10 billion bits / s.

All fiber-optic systems have approximately the same structure. At the transmitting end of the fiber optic line there is an LED or laser diode, the radiation of which is modulated in amplitude by the transmitted signal from the information source. The transmitted signal may be the video signal from the camera, the control signal of the rotary device of the camera, the audio signal and other signals to be transmitted. Before directing such a signal to the emitting LED, it is pre-modulated in an amplitude, frequency or pulse modulator. The use of such a modulator in a fiber optic system in a transmitter paired with a receiver demodulator allows several signals of various types to be simultaneously transmitted via fiber optic.

When transmitting, the light from the laser diode is modulated in brightness per clock with the transmitted modulator signal. Optical radiation is transmitted via a fiber optic line to a receiving module, where a photodiode is installed, which converts the light modulated by brightness into electrical vibrations. After detecting the modulated optical video signal, it is fed to a demodulator, which divides the received combined signal into signals of individual transmitted channels. The type of modulation of the optical signal and the number of signals simultaneously transmitted over the fiber optic line are selected based on the solution of specific technical problems.

One of the advantages that distinguish fiber-optic systems is the absolute immunity of the fiber from electrical noise, interference and the complete absence of radiation outside. This is explained by the fact that the optical communication channel uses a light signal that does not interact with electromagnetic fields in any way, and the optical fiber itself is a dielectric and by its nature cannot interact with electric and magnetic fields. Despite the extremely small diameter, the optical fiber can be produced in a durable outer shell that can withstand high mechanical stresses and also guarantees long-term operation in damp rooms and aggressive environments. Some types of optical cables allow them to be laid directly in the ground, which dramatically reduces the cost and speeds up installation work. All fiber-optic systems are characterized by an increased level of security, since the transmitted signal is not emitted outside the optical fiber and it is impossible to connect to it for unauthorized interception.

To transmit several independent signals simultaneously on one optical fiber, methods of time and frequency signal compression are applied. For this, optical multiplexers with frequency (spectral) channel separation, which combine several transmitted signals into one, are most often installed in fiber-optic systems. Each signal source is transmitted by beams with different wavelengths. These rays travel through the fiber optic line independently and do not interact with each other. This type of modulation is called WDM (wavelength division multiplexing). It increases the throughput of the fiber optic system and allows simultaneous bi-directional transmission of information.

Other types of modulation of the optical signal that use fiber optic systems:

- frequency-modulated frequency multiplexing FM-FDM (frequency-modulated frequency division multiplexing),

- amplitude modulation with partially suppressed sideband, frequency multiplexing AVSB-FDM (amplitude vestigial sideband modulation, Frequency division multiplexing) - provides simultaneous transmission of up to 80 channels on one fiber optic line.

Additionally, the security system may include vibration sensors 14 connected by electrical connections 6 to the computer 10 (Fig. 2). Possible schemes for installing vibration sensors will be given below.

Racks 3 can be made in three versions (Fig. 3 ... 5).

In FIG. 3 shows a straight strut 3, in FIG. 5, the rack 3 has an extension 15 made at an angle from 100 to 170 degrees to the rack 3, and in FIG. 4 shows a variant with a V-shaped extension 15.

Racks 3 are concreted in a concrete base 16 in the ground 17 (Fig. 6).

The fence can be equipped with an anti-climbing device 18 (Fig. 7), while fixing the mesh panel 2 with the neighboring ones is performed by clamps 19 made of metal plates (single. Inside the anti-climbing device 18, a spiral 20 (Fig. 8) or a “Fidget” tape can be installed. The mesh panel 2 can be equipped with an anti-trench device 21. (Figs. 9 and 10.) The anti-trench device 21 can be made in the form of a vertical additional grid (Fig. 9) or in the form of a “G” -shaped cross-section of the grid (Fig. 10) .

The mesh panel 2 is fixed to the posts 3 using a wire loop 22 (Fig. 11). In FIG. 12 shows the construction of the clamp 19. FIG. 13 shows a diagram of the fastening of the mesh panel 2 to the rack 3. In the rack 3, a plug 23 is installed. The clamp 24 is double and is intended for fastening the anti-trench device 21 (Fig. 14).

The mesh panel 2 is connected to the posts 3 by connecting brackets 19 (FIG. 11) of wire, and the rods of adjacent mesh panels 2 are lapped together outside the posts 3 by means of clips 19 of a metal plate (FIG. 12). A single clamp 19 is used to secure adjacent mesh sections 2 of the fence with each other. Clips 24, double (Fig. 14) is used to connect the main grid section 2 with the anti-trench device 21.

Welds (not marked) of the mesh panel 2 are facing the outside of the guard. Racks 3 fencing installed on the outside of the fence.

The coating of the mesh panel 2 is made with a density of zinc coating of at least 0.29 kg / m ² .

Racks 3 are made of cold rolled sheet steel with a longitudinal weld. Racks 3 are hot-dip galvanized with a zinc coating density of at least 0.38 kg / m ² and a ratio of iron and zinc varying from 25% to 94% towards the outer surface, respectively, while the upper end of the rack is equipped with plugs 23 (Fig. 13).

The mesh panel 2 can be installed directly on the ground 17, or it can be partially buried in the soil 17, or to the mesh panel 2 with the help of the connecting brackets 24 an anti-tamper device 21 is attached in the form of an additional mesh fabric partially buried in the soil 17. In this case, the anti-tamper device 21 may be attached to the mesh web 2 by means of connecting brackets 24 (FIG. 14)

The guard may be provided with an external anti-climbing device 18, as shown in FIG. 6 and 7, or the guard may be provided with an external anti-climbing device 18 and an internal anti-climbing device, as shown in FIG. 8, and furthermore equipped with a spiral 20.

The fence can be equipped with safety tools that respond to vibration, made in the form of one or more vibration sensors 14, connected by electrical connections 6 to the computer 10 and then to the monitor 11.

Vibration sensors 14 can be installed on the anti-excavation device 21 (Fig. 15) or above the anti-excavation device 21 in the ground above this anti-excavation device 21 (Fig. 15) or on the anti-climbing device 18 (Fig. 17) and are connected by wire connections 6 to the computer 10 .

Between the mesh panels 2 and the ground 17 can be installed reinforced concrete structures 25 (Fig. 18). This is usually not done on purpose, but the proposed fence is installed on top of an existing concrete fence.

The fence is mounted and operated as follows.

The marking of the site for the installation of fencing in straight sections of the perimeter is carried out using a conventional cord, stretched between the proposed installation points of the extreme racks of the site.

To determine the installation points of the racks 3, the entire rectilinear section is divided into segments 2.5 meters long, equal in length to one mesh panel 2 of the fence. The installation locations of the racks 3 are marked by 17 pegs driven into the ground.

In the places where the racks 3 are installed, using a drilling device with a diameter of 30 cm, soil is selected to a depth of at least 90 cm. Gravel must be added to the bottom of the pits so that the upper point of the rack 3 installed on it is at a distance of about 3 m from the ground.

The racks 3 mounted on gravel are poured with concrete mortar. Prior to the complete hardening of concrete, it is necessary to monitor the vertical position of the uprights 3 using a level with magnetic fastening, as well as the location of the uprights 3 strictly in one line in accordance with the marking.

Prior to the installation of the mesh panels 2 on the racks 3, it is necessary to first connect the mesh sections 2 using the clamps 19. The connection is overlapped by the size of two cells 50 × 200 mm.

The mesh panels 2 are not stretched. In the same sequence, the entire fence is installed. In the case of equipping the fence with an anti-climbing device 18 and a spiral 20, they are mounted.

Reinforced concrete panels 25 or blocks of a previously installed concrete (reinforced concrete) fence can be installed under the mesh panels 2.

Small bumps in the terrain that could not be removed at the time of preparing the perimeter section can be compensated by trimming the mesh panel 2 from the bottom with a special cutting tool.

A properly installed fence should not have freely moving components relative to each other. Gusts of wind and light blows on the fence should not cause rattling of structural elements.

On the anti-climbing device 18, instead of a spiral 20, a reinforced barbed tape (of the “Egoza” type) can be installed.

Installation of means for detecting the impact on the fence of the system elements that are part of the perimeter security alarm is carried out in accordance with the installation instructions of the system after the installation of the fence is complete.

An external mesh sectional fence is designed to protect objects of various purposes from intruders, vehicles, domestic and wild animals.

Sectional fencing can be used in various options for constructing the physical strength system of an object, such as:

- external physical enclosure;

- a physical fence separating the exclusion zone from the inside or outside of the facility;

- a physical fence separating the internal regime zones from the rest of the facility;

- a physical fence equipped with perimeter detection equipment for any of the perimeter security lines.

Section fence can be used in different versions:

- external fence without anti-climbing device,

- external fence with anti-climbing device,

- external fence with anti-climbing device and a spiral,

- external fence with anti-trench device;

- external fencing with anti-climbing and anti-mine devices;

The option of the fence is selected based on the requirements of the customer and the possible directions for overcoming it by the likely intruder, the terrain and the location of the fence on the ground.

Installation of fencing can be carried out both directly on the ground, and on reinforced concrete structures that impede an attempt to undermine in order to penetrate the object.

The mounted guard, put into operation, is a structure 2.5–3.5 m high, consisting of a vertical part, and an anti-climbing V-shaped extension 15 from spiral 19. To counter penetration of the object by digging under the fence, an anti-undercut device 21 A distinctive feature of this type of fence due to the large thickness of the wire mesh fence - 4.5 mm is the absence of the need for tension. This reduces installation time and cost of work.

To ensure the long-term operation of mesh panel fencing, all structural elements are galvanized with hot zinc (min 0.38 kg / m ² ).

During galvanizing, the mesh panel 2 is completely immersed in a bath of molten zinc. This operation is performed after welding the wire into a single mesh of section 2, as a result of the reaction, a ferro-zinc alloy is formed on the entire surface of the product, consisting of almost pure (at least 94%) zinc. This structure of the hot-dip galvanized surface provides excellent adhesion between steel and zinc, which no other paint, varnish, or metallized coating can provide, and at the same time, the relatively low cost of the galvanizing process.

The uniqueness of such a zinc coating lies in the fact that it creates not only an anti-corrosion barrier with a thickness of 180-240 microns, but also provides electrochemical protection of steel. The specified thickness of the protective zinc layer being created significantly exceeds the parameters of other manufacturers.

Steel with such a thickness of the protective zinc layer can serve more than 50 ... 70 years without visible corrosion damage and renewal of the zinc coating.

The main characteristics of the welded mesh panels 2 fencing:

- The diameter of the wire mesh is 4.5 mm.

- The cell size is 50 × 200 mm.

- The minimum density of the zinc coating is 0.38 kg / m ² .

- Zinc purity - not less than 94%.

- The tensile strength of the wire is not less than 600 MPa.

- The strength of the weld is 3000 N.

The strength of the bar, from which the welded mesh fence is made, does not allow biting the fence using improvised means.

The linear part of the fence during installation is stretched and overlapped on racks 3 or outside the racks 3. Welded lattice structures are facing the intruder, which makes it impossible to support for descent from the fence. Racks 3 are installed on the outside of the trellised fence to create additional obstacles for the intruder during the operation of the fence.

This fence is easier to install, reliable in operation, both from the point of view of its long-term preservation in readiness, as well as from the point of view of functional reliability, since it excludes the possibility of any quick overcoming of the fence and penetration into the protected area. In addition, any person who intends to unauthorized access to the fenced area will not be able to break and overcome this fence without being detected with one of the cameras 5 before it is exposed to the mesh web 2. Installing vibration sensors 14 in the ground 17 allows the security operator to receive sound or a light signal even before it touches the mesh panel 2, which, unlike the prototype, will increase the level of security. The use of vibration sensors 14 is justified by the fact that the security operator, due to inattention, can miss the moment the intruder approaches directly to the fence or at a distance close to it up to 0.5 ... 1.0 m.

Application of the utility model allowed:

1. To increase the reliability of the fence by the fact that for penetration in case of overlapping mesh panels it is not enough to destroy one connecting element.

2. Created inexpensive effective fencing and expanded the capabilities of the security system, which made it possible to detect the intruder.

3. Improved accuracy of detecting effects on the grid even with a single damage, reduced cost,

4. Simplified maintenance

5. The spread of the parameters of the coating of the grid and racks is excluded, which is due to the increased durability in difficult climatic conditions.

Claims (19)

1. A fence containing racks for installation around the perimeter of the enclosed area and mesh panels made of steel wire mounted on racks, as well as connecting elements, while mesh panels are made in the form of interconnected intersecting rods that are welded together, characterized in that the mesh panels are overlapped to each other. 2. The fence according to claim 1, characterized in that it contains a security tool, which is made in the form of a video surveillance system containing video cameras mounted on poles in a fenced area. 3. The fence according to claim 2, characterized in that the safety means comprises vibration sensors connected by electrical connections to a computer. 4. The fence according to claim 3, characterized in that the vibration sensors are installed in the ground in front of the metal mesh web. 5. The fence according to claim 1 or 2, characterized in that it is equipped with an external anti-climbing device. 6. The fence according to claim 1 or 2, characterized in that it is equipped with an external anti-climbing and internal anti-climbing devices. 7. The fence according to claim 6, characterized in that wire spirals are installed between the external and internal anti-climbing devices. 8. The fence according to claim 5, characterized in that vibration sensors are installed on the anti-climbing device. 9. The fence according to claim 1 or 2, characterized in that the rods of adjacent mesh panels are interconnected by overlapping racks. 10. The fence according to claim 1 or 2, characterized in that the rods of adjacent mesh panels are lapped together outside the racks by means of clamps from a metal plate. 11. The fence according to claim 1 or 2, characterized in that the mesh panels are connected to the posts by a connecting wire loop, and adjacent mesh panels are overlapped by means of metal plate clamps. 12. The fence according to claim 1 or 2, characterized in that the welded seams of the mesh panels face the outside of the fence. 13. The fence according to claim 1 or 2, characterized in that the racks of the fence are installed on the outside of the fence. 14. The fence according to claim 1 or 2, characterized in that the racks are made of cold rolled sheet steel with a longitudinal weld. 15. The fence according to claim 1 or 2, characterized in that the mesh panels are installed directly on the ground. 16. The fence according to claim 1 or 2, characterized in that the mesh panels are partially buried in the ground. 17. The fence according to claim 1 or 2, characterized in that the anti-trench device is attached to the mesh panels using clamps from a metal plate in the form of an additional mesh web partially buried in the ground. 18. The fence according to claim 17, characterized in that vibration sensors are installed above the anti-digging device. 19. The fence according to claim 1 or 2, characterized in that reinforced concrete structures are installed between the mesh panels and the ground.

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