RU2782308C1 - Linear part of a mobile electrified barrier - Google Patents

Abstract

FIELD: security systems.

SUBSTANCE: invention relates to the field of alarm barriers that contain electrified elements and carry out non-lethal effects on violators. In the linear part of the mobile electrified barrier, the bracket attachment points are made in the form of sections of a U-shaped profile, in one of the side walls of which a hole is made with a clamping screw installed in it; tensioners are made in the form of manually operated coils with a switchable ratchet mechanism and fixed to the insulator racks through additional insulators; the wire type electrified elements are made in the form of a cable, the free end of which is equipped with a linear elongation compensation mechanism.

EFFECT: elimination of the effect of twisting of electrified elements during the installation/disassembly of the linear part; simplification of the winding of the electrified element; reduction of the required tension force of the electrified element; minimization of leakage currents; unification of the winding element and the attachment point of the insulator racks to the load-bearing barrier.

1 cl, 6 dwg

Description

The present invention relates to signal barriers containing electrified elements that carry out a non-lethal effect on violators.

From RF patent No. 2704666, a mobile electrified barrier is known, containing metal transformable folding support posts (supports), beam insulators (insulator posts) mounted on them with electrified wire-type elements fixed to them; beam insulators are fixed on the barrier using brackets, including the attachment point on the barrier, as well as the insulator mounting support fixed on it; beam insulators are equipped with several levels of attachment points for electrified wire-type elements, each of which contains at least one tensioner fixed by a collapsible connection on the beam insulator. In this case, the mount on the barrier includes a clamping bracket with a hook and a wedge. The tensioners are made of a metal strip folded in half with the formation of an oval cavity in the bend area, at the end of which there is a hole for passing the electrified wire-type element, and in the middle part across the electrified element there is a shaft with a ratchet mechanism providing unidirectional rotation for tension. Intermediate beam insulators made of dielectric material with through holes for electrified wire elements can be installed on similar supports and brackets.

The common essential features of the known technical solution are the following - a linear part of a mobile electrified barrier containing initial, terminal and intermediate racks of insulators made of dielectric material with several levels of electrified wire-type elements fixed to them; racks of insulators are equipped with brackets for fixing on the barrier supports, including the attachment point on the barrier supports, as well as the rack mounting support fixed on it; the initial racks of insulators are equipped with tensioners of electrified wire-type elements fixed on them with a collapsible connection; Tensioners are equipped with a ratchet mechanism providing unidirectional rotation for tensioning.

In the well-known prototype design, the attachment points of the electrified elements, which are electrical conductors, are fixed directly on the insulator stand, the surface of which becomes conductive during precipitation, thus, the use of a two-pole power supply circuit for such a linear part becomes impractical due to the huge leakage currents. The fastening of the insulator post to the perforated support is carried out using a unique fastening unit, thus, the use of such a linear part on other barriers is impossible. The tension of the electrified elements is carried out using a special key, which may not be available during the installation of a mobile electrified barrier. Electrified elements have a fixed length, that is, they are cut at the place of use and, with any increase in the length of the electrified barrier (for example, when installed in another place), they cannot be reused. There is no mechanism for compensating the linear elongation of the cable during changes in ambient air temperatures, which may cause sagging of the electrified elements or, conversely, their excessive tension, which will create an unacceptable force on the attachment point.

The technical tasks to be solved by the proposed solution are the following - minimization of leakage currents (including during precipitation) in order to be able to use not only a single-pole, but also a two-pole power supply circuit for the linear part, unification of the attachment point of the insulator racks to the bearing barrier with the possibility of using on existing barriers of various types, the use of a winding device for storing the stock of the electrified element and its tension during the installation of the linear part, minimizing the installation / dismantling time of the linear part due to the exclusion of tools and special devices.

To solve these technical problems in the linear part of the mobile electrified barrier, containing the initial, terminal and intermediate racks of insulators made of dielectric material fixed to the barrier supports with brackets, with several levels of electrified wire-type elements fixed to them; the brackets include a fastening unit on the barrier supports, as well as a fastening support of the insulator rack fixed on it; the initial racks of insulators are equipped with tensioners of electrified wire-type elements fixed on them with a collapsible connection; which are equipped with a ratchet mechanism that provides unidirectional rotation for tension, in contrast to the prototype, the attachment points of the brackets on the supports are made in the form of U-shaped profile sections, in one of the side walls of which there is a hole with a clamping screw installed in it; the tensioners are made in the form of coils with a manual drive with a switchable ratchet mechanism (gear mechanism of intermittent movement) and are fixed on the insulator racks through additional insulators (for example, made according to the type of pin insulators of electrical networks); electrified wire-type elements are made in the form of a cable (usually galvanized steel), the free end of which is equipped with a linear elongation compensation mechanism (spring).

Thanks to the proposed solution, the following technical results are achieved:

- due to the use of a cable, the effect of twisting during installation / dismantling of the linear part is eliminated and winding is simplified by a winding device due to the greater flexibility of the cable compared to wire, the required tension force of the electrified element is reduced due to the elastic elongation of the cable;

- due to the installation of additional insulators on the insulator racks, leakage currents are minimized, including during precipitation, which makes it possible to use not only single-pole, but also two-pole power supply circuits for the linear part;

- due to the use of a winding device, the electrified elements are in the coil during transportation and are unwound to the required length during installation. The maximum length of electrified elements can be increased by using larger coils. The winding device is simultaneously a tensioner of the electrified element. Insulator racks can be delivered on site with installed electrified elements, for deployment of which it is enough to unwind the required length (even several levels at the same time are possible). Also, after using the barrier, the electrified elements can be rewound on reels and unwound in another place quickly and with a different working length;

- due to the use of a universal attachment point of the beam insulator to the barrier support (installation brackets), the linear part can be used practically on barriers with various supporting elements (made of metal of various profiles, wood, concrete, etc.);

- due to the addition of a mechanism for compensating the linear elongation of the cable (spring), the possible sagging of the electrified elements or, conversely, their excessive tension, which will create an unacceptable force on the attachment point during ambient temperature changes, is excluded.

The proposed technical solution can be used in the construction of electrically conductive barriers with beam-type insulators (insulator posts) and electrically conductive wire elements. This solution can be used both for electrified type barriers, where the elements are always energized or connected in the presence of a violation signal, and for capacitive type alarm barriers. Its use is especially relevant for mobile and rapidly deployable barriers, including reusable ones. In addition, the proposed linear part can be installed on existing barriers of various types.

The solution is illustrated in Fig. 1-6, which show, respectively:

fig. 1 - general view of the linear part of the electrified barrier;

fig. 2 - initial rack of insulators, fixed on the barrier support;

fig. 3 - view of the reel-tensioner from the side of the ratchet switch;

fig. 4 - view of the tensioner coil from the side (from the side of the winding-winding of the cable of the electrified element);

fig. 5 - view of the reel-tensioner from the side of the handles for its rotation;

fig. 6 - universal bracket.

The figures indicate:

1 - end insulator rack;

2 - device for fixing the free end of the electrified cable element;

3 - electrified element - cable;

4 - clip for movable fastening of the cable;

5 - intermediate insulator rack;

6 - an initial rack of insulators with attachment points for electrified elements - cables;

7 - reel-tensioner - winding device of the electrified element - cable;

8 - bracket for fastening the insulator rack to the barrier support;

9 - handles for rotating the coil;

10 - fastening carabiner;

11 - linear elongation compensation mechanism - extension spring;

12 - switch of the ratchet (ratchet) mechanism;

13 - additional insulator;

14 - support (rack) of the barrier;

15 - mounting bracket (section of the profile of the U-shaped section);

16 - stud for mounting the insulator rack;

17 - clamping wing screw;

18 - base plate;

19 - nut;

20 - threaded part of the stud of the support for fastening the insulator rack;

21 - thrust washer.

Shown in FIG. 1-6, the electrified barrier contains supports 14 fixed on them with the help of brackets 8 of the rack 1, 5, 6 of insulators (for example, made of dielectric fiberglass). Fixing devices 2 are fixed on the terminal posts 1. Clips 4 are installed on the intermediate posts 5 to support the electrified element - cable 3, ensuring its spatial arrangement while maintaining horizontal mobility. Coils 7 with a ratchet mechanism and handles 9 are installed on the racks 6 through additional insulators 13. At the same time, one end of the cable 3 is fixed to the coil 7 motionless. And the other free end of the wound cable 3 is equipped with a spring 11 and a carabiner 10. Coils 7 can be manufactured depending on the parameters of the fence (length of spans, cable thickness, etc.), but known mass-produced inertial fishing reels can also be used, which have all the necessary parameters and details.

Installation of the linear part of the electrified barrier is carried out as follows:

- to the place of installation (deployment), the electrified barrier is delivered in the form of racks of insulators assembled - coils 7 are fixed on racks 6 through additional insulators 13 with a cable 3 wound around them (depending on the maximum length of the barrier with a small margin), the free ends of which are equipped with a spring 11 and carabiner 10. The delivery set also includes brackets 8 and stands 1 and 5 with fixing devices 2 and clips 4 installed on them;

- at the installation site, posts 1, 5, 6 are fixed to the barrier supports 14 (already existing or newly installed) by means of brackets 8; on the supports 14, the brackets 8 are fixed with the mounting bracket 15 by screwing in the wing screw 17 until the support plate 18 stops completely on the support 14 (the nut 19 is welded to the bracket 15 to ensure the creation of a threaded section on the bracket 15, the thickness of which may be insufficient). Racks of insulators are installed on the threaded parts 20 of the studs 16 with an emphasis on washers 21 and fixation with nuts (not shown in Fig.);

- the switches 12 of the ratchet mechanisms are transferred to the neutral position and then, by pulling, the cables 3 are unwound, during which the cables 3 are inserted into the clips 4 of the racks 5, and then, with the help of carabiners 10, they are fixed on the fixing devices 2 of the racks 1;

- the switches 12 of the ratchet mechanisms are switched to the working position and the cables 3 are tensioned by rotating the coils 7;

- the electrified barrier is connected to the power supply in a regular manner and put into operation.

During operation, a slight elongation of the cables can be self-compensated by their own elasticity and springs. With more significant deformations, you can easily wind up or unwind the cable with coils manually.

When moving (mounting in a new place) or changing the shape and (or) size of the barrier, the free ends of the cable are released and it is wound onto coils. Further, at a new location or at a changed perimeter, the installation described above is carried out with the rewinding of the already required new length of the cable.

Claims (1)

The linear part of the mobile electrified barrier, containing the initial, terminal and intermediate racks of insulators made of dielectric material fixed on the barrier supports using brackets with several levels of electrified wire-type elements fixed to them; the brackets include a fastening unit on the barrier supports, as well as a fastening support of the insulator rack fixed on it; the initial racks of insulators are equipped with tensioners of electrified wire-type elements fixed on them with a collapsible connection, which are equipped with a ratchet mechanism that provides unidirectional rotation for tension, characterized in that the attachment points of the brackets on the supports are made in the form of U-shaped profile sections, in one of side walls of which there is a hole with a clamping screw installed in it; the tensioners are made in the form of coils with a manual drive with a switchable ratchet mechanism and are fixed on the insulator racks through additional insulators; electrified elements of the wire type are made in the form of a rope, the free end of which is provided with a linear elongation compensation mechanism.

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