RU2785006C1 - Signal marker ball, method for its mounting to overhead power line, and device for its implementation - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention is used in the field of electrical engineering for marking of wires and ground wires of overhead power lines (hereinafter – OL). A signal marker ball consists of two detachable hemispheres pivotally connected to each other and equipped with clamping jaws with holes for passage of wire. Inside the marker ball, springs are installed, pulling hemispheres to each other, as well as guard rods. Guard rods are made with the possibility of rotation, and they retain the second hemisphere at a distance from the first one. Wire coming into a space between spaced hemispheres of the marker ball and pressing on guard rods lead to rotation of guard rods, compression of springs, and connection of hemispheres to each other, as a result of which wire or ground wire is captured with hemispheres.

EFFECT: increase in the safety of mounting of a marker ball to OL wire, while reducing labor costs and reducing traumatism.

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Description

The claimed invention relates to the field of electric power industry, namely to signal balls-markers used for marking wires and ground wires of overhead power lines (VL) in small aircraft flight areas to warn aircraft pilots about the passage of VL, and operators of lifting equipment operating in a security zone Overhead lines, in order to prevent injuries and disconnect overhead lines, as well as methods for mounting signal balls-markers on the wire and ground wire of overhead lines using an unmanned aerial vehicle.

Known signal ball-marker containing two detachable hemispheres, pivotally connected to each other, with holes for passing a wire or cable of an overhead power line, formed when the hemispheres are closed together. Such a detachable ball is installed by electricians manually by tightening the bolts of the detachable connection of the hemispheres (www.lep-snab.ru/catalog/armatura-dlya-vl/zashchitnaya-armatura/signalnye-markery/sp-t-300-20-27/, date of access : 07/12/2021).

The disadvantage of this marker ball is the impossibility of its remote installation on the overhead line using an unmanned aerial vehicle, the increased likelihood of injury during its installation, as well as the need to turn off the overhead line.

There is a known method of mounting markers fixed on wires and lightning protection cables of overhead power lines using unmanned aerial vehicles, which consists in the fact that adjustable grips fixed on the supporting structure of an unmanned aerial vehicle hold the marker, then lift the marker and transport it to the installation site. At the same time, the unmanned aerial vehicle is maneuvered in such a way that it hangs in a position where the wire or lightning protection cable is located under the lower slot made in the marker. After positioning the unmanned aerial vehicle over the wire or lightning wire, the grip is released and the marker is dropped onto the wire or wire, having a wedge-shaped slot in the lower part, carrying out the initial grip of the wire or wire with the marker, followed by automatic fixation of the marker by means of clamps (RF patent No. 2690697, published on 06/05/2019).

The disadvantage of this method and device is the insufficient safety of the process of installing the ball, the possibility of mechanical damage to the wire (lightning cable) by this device due to the fact that when installing the ball on the wire, in case of failure to maintain the minimum allowable drop height of the ball from an unmanned aerial vehicle due to adverse weather conditions or errors the operator's grip may fail and the ball will fall to the ground.

The technical result achieved by the claimed invention is to increase the safety of the process of mounting the marker ball on the overhead line wire, reduce injuries and reduce labor costs.

According to the invention the signal marker ball contains two detachable hemispheres hinged to each other and equipped with clamping jaws with holes for passing a wire or ground wire of an overhead power line, formed when the hemispheres are closed together, while inside the marker ball there are springs that tighten the hemispheres between themselves, along at least two guard rods, made with the possibility of rotation and capable of holding the second hemisphere at a distance from the first, while in the immediate vicinity of the jaws there are limiters that center the hemispheres and limit the amount of opening of the hemispheres and the depth of entry of the wire or ground wire into the marker ball space.

The method of mounting a signal marker ball on a wire or ground wire of an overhead power transmission line consists in holding the signal marker ball with holders fixed on an unmanned aerial vehicle, then the unmanned aerial vehicle with the installed marker ball is lifted and transported to the installation site, after positioning unmanned aerial vehicle above the wire or ground wire, the wire or ground wire is wound up so that it falls into the space between the separated hemispheres of the marker ball, the unmanned aerial vehicle is lowered, as a result of which the wire or ground wire presses on the guard rods installed on the marker ball, which leads to the rotation of the guard rods, the compression of the springs installed inside the marker ball, and the connection of the hemispheres with each other, as a result of which the wire or ground wire is captured by the hemispheres.

A device for mounting a signal marker ball on a wire or ground wire of an overhead power line contains an unmanned aerial vehicle, to the body of which holders for a marker ball are attached, made with the possibility of holding the marker ball in the open state of readiness for installation on a wire or ground wire of an overhead power line.

The distance between the holders is less than the largest distance between the outer surfaces of the hemispheres in the open state of readiness for installation on a wire or ground wire.

Guides are installed on the body of the unmanned aerial vehicle for orientation of the unmanned aerial vehicle when landing on a wire or ground wire of an overhead power line.

The claimed invention is illustrated by drawings, where:

Fig. 1 - signal ball-marker in the open state, before installation on the wire (ground wire) of the overhead line;

Fig. 2 - signal ball-marker in the closed state, after installation on the wire (ground wire) of the overhead line;

Fig. 3 - signal marker ball in the open state, installed on the device for mounting the signal marker ball on the wire or ground wire of the overhead power line before installation on the wire or ground wire of the overhead line;

Fig. 4 - signal ball-marker in the closed state, installed on the device for mounting the signal ball-marker on the wire or ground wire of the overhead power line after installation on the wire or ground wire of the overhead line.

Signal marker ball 1 (Fig. 1, 2) contains two detachable hemispheres 2, pivotally connected to each other and equipped with clamping jaws 3 with holes 4 for passing the wire or ground wire 5 of the overhead power line, formed when the hemispheres are closed to each other. Jaws 5 are designed to ensure tight contact of marker ball 1 with wire 5 and are made of a material that ensures reliable gripping of the wire by the sponges and prevents it from slipping in the place where the wire is wrapped. Inside the marker ball 1, springs 6 are installed, connected to the hemispheres 2 and tightening the hemispheres 2 to each other.

Inside the marker ball 1, at the holes 4, guard rods 7 are installed, made with the possibility of rotation and capable of holding one hemisphere at a distance from the other. Also, in close proximity to each hole 4 of the clamping jaws 3, there is a limiter 8 designed to center the hemispheres 2 and limit the opening of the hemispheres 2 and the entry of the wire or ground wire 5 inside the marker ball.

The installation of the signal ball-marker 1 is carried out using devices for mounting a signal ball-marker on wires or lightning wires overhead lines, containing an unmanned aerial vehicle 9, to the body of which holders 10 for a marker ball are attached (Fig. 3, 4). The distance between the holders 10 is less than the largest distance between the outer surfaces of the hemispheres 2 in the open state of readiness for installation on the overhead line wire. Guides 11 are also installed on the body of the unmanned aerial vehicle 10 for orienting the unmanned aerial vehicle 9 when landing on a wire or ground wire 5 of an overhead power line.

The method of mounting the signal ball-marker on a wire or ground wire of an overhead power line is carried out as follows.

The marker ball 1 in the closed state of the hemispheres 2 is installed in the space of the holders 10 of the unmanned aerial vehicle 9. The hemispheres 2 are moved apart and the springs 6 are stretched. 3). The largest distance between the outer surfaces of the hemispheres 2 in the reduced state (equal to the diameter of the ball) is less than the largest distance between the outer surfaces of the hemispheres 2 in the open state of readiness for installation on the overhead line wire, which, in turn, is greater than the distance between the holders 10, which allows you to hold ball in holders during transportation.

Then the unmanned aerial vehicle 9 with the marker ball 1 installed is lifted and transported to the place of installation on the wire (ground wire) 5 of the overhead power line. After positioning the unmanned aerial vehicle 9 over the wire 5, with the help of the guides 11, the wire 5 is wound up so that it enters the separated hemispheres 2. The aircraft 9 continues its descent, as a result of which the wire 5 presses on the guard rods 7, releasing the springs 6 for compression, the springs are compressed, the hemispheres 2 converge and the wire (ground wire) 4 is captured by the jaws 3 of the hemispheres 2. The limiters 8 prevent the further movement of the wire 5 into the interior of the marker ball 1 and center both hemispheres 2 among themselves (Fig. 2, 4). Since the greatest distance between the outer surfaces of the hemispheres 2 in the closed state on the VL wire is less than the distance between the holders 10, the ball is released from the holders. Further, the unmanned aerial vehicle 9 continues upward from the ball 1, the ball remains on the wire 5, and the unmanned aerial vehicle 9 returns to the ground.

The claimed invention allows to reduce the likelihood of injury, reduce labor costs and provide the ability to install signal marker balls without turning off the overhead line.

Claims (3)

1. A signal marker ball containing two detachable hemispheres hinged to each other and equipped with clamping jaws with holes for passing a wire or ground wire of an overhead power line, formed when the hemispheres are closed together, while inside the marker ball there are springs that tighten the hemispheres between at least two guard rods, made with the possibility of rotation and capable of holding the second hemisphere at a distance from the first, while in the immediate vicinity of the jaws there are limiters that center the hemispheres and limit the amount of opening of the hemispheres and the depth of entry of the wire or ground wire into the space of the ball -marker. 2. A method for mounting a signal marker ball on a wire or ground wire of an overhead power line, which consists in holding the signal marker ball with holders fixed on an unmanned aerial vehicle, then the unmanned aerial vehicle with the installed marker ball is lifted and transported to the installation site , after positioning the unmanned aerial vehicle over the wire or ground wire, the wire or ground wire is brought in so that it falls into the space between the separated hemispheres of the marker ball, the unmanned aerial vehicle is lowered, as a result of which the wire or ground wire presses on the guard rods installed on the ball - marker, which leads to the rotation of the guard rods, the compression of the springs installed inside the marker ball, and the connection of the hemispheres with each other, as a result of which the wire or ground wire is captured by the hemispheres. 3. A device for mounting a signal marker ball on a wire or ground wire of an overhead power line, containing an unmanned aerial vehicle, to the body of which holders for a marker ball are attached, made with the possibility of holding the marker ball in the open state of readiness for installation on a wire or ground wire of an overhead power line. power lines, while the distance between the holders is less than the largest distance between the outer surfaces of the hemispheres in the open state of readiness for installation on a wire or ground wire.

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