RU211478U1 - ANCHOR TELESCOPIC POST - Google Patents

Abstract

This utility model relates to devices designed to secure personal fall protection equipment operating at height in the maintenance of substations of power lines. The anchor telescopic pole consists of a body, a telescopic pipe, support units and a stand, the body is an aluminum tube with support nodes fixed on it, each of which is a welded cup with two telescopic supports fixed on it with stops. The technical result is an increase in the versatility, rigidity and reliability of fastening the anchor post to the disconnector structures, as well as a general improvement in ease of use.

Description

This utility model relates to devices designed to secure personal fall protection equipment operating at height in the maintenance of substations of power lines.

The utility model can be used as an anchor for individual safety ropes, slings and other means of protection against falls from a height, at a point located at the top of the post (anchor point). The utility model can be used both individually and in combination with another anchor telescopic pole. When used in pairs, a flexible anchor line is stretched between them, which is a rope or cable, or a tape with a carabiner.

From the prior art, a column of anchor fastening of personal protective equipment against falls working at height is known (utility model patent RU 177133, publ. 09.02.2018 Bull. No. 4), made telescopic in the form of an external tubular guide and an internal retractable anchor, at the free end of which an anchor point is fixed in the form of a plate with holes for attaching personal protective equipment against falls from a height. The tubular guide and the internal retractable anchor have a rectangular profile. On the first side of the outer tubular guide, at a distance from each other in the longitudinal direction, there are fastening clamps for attaching the anchor post to the vertical support. On the side of the outer tubular guide, opposite the first side, a longitudinal through hole is made. On other opposite sides of the outer tubular guide, holes spaced apart from each other at a distance in the longitudinal direction are made, designed to accommodate the position lock of the inner retractable anchor relative to the outer tubular guide. The inner retractable anchor is equipped with a handle that goes out through the hole in the outer tubular guide. On the lateral sides of the inner retractable anchor, aligned with the sides of the outer tubular guide having holes, there are holes for fixing its position relative to the tubular guide. The disadvantage of this technical solution is the inflexibility of the attachment system to the design of the disconnector, which leads to low variability of use.

The closest in technical essence is an anchor device for personal fall protection when working at height (patent RU 176299, publ. 16.01.2018 Bull. No. 2), containing a support base with fastening elements on the supporting structure and an anchor point for mechanical connection of safety devices. In this case, the fastening elements of the support base are at least one flexible textile or other flexible element tightened using a ratchet or screw mechanism. The support base is made with the possibility of removing the anchor point using an additional column of various lengths or a composite of several elbows, rigidly attached to the support base. The disadvantage of this technical solution is the impossibility of providing a large overhang of the device, which narrows the range of its use, as well as the unreliability of the mounting design.

Existing models of anchor poles are designed to be mounted preferably on horizontal beams of disconnector trusses in such a way that, having ensured their safety, a worker can climb to a height of 2-3 m without insurance, with a load of about 17 kg, and mount the anchor pole on outstretched arms. It is enough to lean the claimed model against a support from the ground and pull it with slings.

The task to be solved by the claimed utility model is the development of an anchor post that is universal in use, suitable for various structures, and reliable in operation.

This problem is solved by the fact that the anchor telescopic pole consists of a body, a telescopic part, support nodes fixed on the body, a stand, an anchor point fixed in the upper part of the telescopic part, the support node is a glass with two telescopic supports fixed on it with stops, at the base of the supports, an adjusting spacer is fixed, the cup of the support assembly has welded flanges at the ends, in which there are holes for fastening the fingers of telescopic supports, in which parts with holes are installed, in which elements of the tie-down belt are fixed. The body is made of length L1, telescopic part of length L2 with the possibility of height adjustment within the adjustment range H, determined from the ratios H=Lmax-Lmin, where Lmax=L1+L2×0.94 and Lmin=L1. The body length is (0.5÷5) m, the length of the telescopic part is (0.5÷5) m.

The technical result provided by the above set of features is to increase the versatility, rigidity and reliability of fastening the anchor post to the disconnector structures, as well as a general improvement in ease of use.

The essence of the proposed technical solution is illustrated by drawings, which show

in fig. 1 - general view of the anchor post;

in fig. 2 - support node (top view);

in fig. 3 is a side view of the installed node, where

1 - anchor point,

2 - telescopic part,

3 - body,

4 - reference node,

5 - fixing element,

6 - stand,

7 - flexible anchor line,

8 - handle,

9, 10, 11 - nuts,

12 - telescopic support,

13 - emphasis,

14 - hook,

15 - adjusting strut,

16 - threaded finger,

17 - hook strap,

18 - flexible element with a tension mechanism,

19 - protector.

The anchor telescopic pole consists of two parts: the body 3 and the telescopic part 2. The telescopic part 2 slides along the body 3, can be fixed both in the folded state and provide the required height of the anchor point (hook), which is located at its end.

The body 3 is an aluminum tube with several support nodes 4 fixed on it (mainly two: upper and lower), a stand 6 and two handles for transportation 8. The upper support node is fixed with spring-loaded latches through the holes of the body 3. The lower support node is fixed with a bolt. The body and the telescopic part are made of composite material or rolled metal.

The body is made of length L1, the telescopic part - length L2 with the possibility of height adjustment within the adjustment range H, determined from the ratios H=Lmax-Lmin, where the queue is Lmax=L1+L2×0.94 and Lmin=L1. In this case, the body length L1 and the length of the telescopic tube L2 are selected from the following range: L1=(0.5÷5) m, L2=(0.5÷5) m.

The support node 4 is a steel welded cup with two telescopic supports 12 fixed on it with U-shaped stops 13 and U-shaped hooks 14 at the ends of the stops. The inner part of the telescopic support is made of two plates with a fixed and rotating sleeve inserted between them, the outer part of the telescopic support is made of a square or rectangular tube. The inner and outer parts of the supports are interconnected by a removable pin. Also, at the base of supports 12, an adjusting strut 15 is fixed, installed in the holes of the rotating bushings of the supports, in one of the bushings there is a threaded hole, in the other a smooth one, which ensures free movement of the stud, on which nuts 9, 10 and 11 are installed. distance, this allows, when the stud is rotated, the nuts rest against the sleeve with a smooth hole and, unscrewing from the sleeve with a threaded hole, the stud pushes the supports apart, thereby fixing the assembly. Moving parts are fastened together with fingers. The details of the support unit are made of composite material or rolled metal.

The support unit can be equipped with an adjusting strut, which provides structural rigidity and ease of installation. The supporting assembly can additionally be fixed by a flexible element with a tensioning mechanism, which is a tape, sling, chain, collar, rope, cable with a tensioning device.

The glass of the support unit is a pipe about one diameter long with flanges welded on the ends. The flanges have holes for attaching telescopic support pins. The fingers can be threaded. Also, parts are attached to the fingers, which can be used as eye nuts, into the holes of which, in turn, elements (hooks) of the tie-down belt are attached.

Stand 6 is a steel pipe with a welded plate, on which threaded bushings are welded, into which adjustable supports are screwed. The principle of operation of the stand - by adjusting the reach of the adjustable supports, the worker ensures that the stand adheres to an uneven surface, preventing the anchor telescopic assembly from slipping along the surface.

The telescopic part 2 is installed in the body 3, fixed with a removable pin and adjusts the height of the anchor point. In the upper part there is a bracket on which the anchor point 1 is fixed, in turn, it is fixed with non-removable pins.

Anchor point 1 is a freely rotating plate with a hole mounted on a bracket, which is a welded cup with a bolt welded into it. The slipping of the anchor point is prevented by two fixed nuts. A freely rotating anchor point in the form of an oval plate with two safety holes allows you to attach safety devices from any position, and eliminates the possibility of overlap, as it freely rotates around its axis. The anchor point is preferably at a height in the range of 0.9 to 1.6 times the sum of the working height and the height of the worker.

The welded cup of the anchor point bracket 1 is a pipe with two holes for fixed fingers for mounting on a telescopic pipe and a round cover welded to it from one end with a hole for a bolt.

The vertical flexible anchor line 7 is standard and is a rope or cable, or a tape with a carabiner, the carabiner is fastened on the upper anchor ring, the free end of the flexible anchor line is tied on the lower anchor ring located on one of the sides of the anchor telescopic pole. The anchor ring in the lower part is fastened with the same bolt that fastens the stand to the body pipe. Before climbing to a height, the worker fastens the slide device to a flexible anchor line, which moves along the anchor line together with the worker. In the event of a fall, the sliding device is fixed on the anchor line, preventing the worker from falling from a height.

The device is used as follows.

The anchor post is extended to the required height, which is determined depending on the height of the upper horizontal beams of the disconnector structure, along which the worker will walk. The carabiner of the flexible anchor line is hooked to the anchor ring 1 of the telescopic part 2 and threaded through the anchor ring located below the anchor post. The anchor post is leaned against the structures of the disconnector 13, fixed with two slings, and the flexible anchor line is pulled. The supporting node 4 of the anchor post to the design of the disconnector is attached as follows. Nuts 9, 10 are unscrewed to the extreme positions, for nut 10 - this is an emphasis on nut 11, for nut 9 - this is the position in the middle of the supports. So they will not interfere with the installation. The anchor post is installed in such a way that the fixing elements 5 touch the disconnector structures. Supports 12 are moved apart, and nuts 9 and 10 are pre-tightened by hand until the hooks 14 touch the disconnector structures. Adjusting spacer 15 is tightened with nut 11. Thus, backlashes will be selected, and the structure will become necessary rigid. The hooks 17 of the tie-down belt 18 are hooked onto the threaded fingers 16. The protector 19 of the tie-down belt is positioned so that the flexible element with the tensioning mechanism does not touch the sharp edges of the structures. The flexible element with the tension mechanism 18 is tightened. Thus, the support assembly is fastened both by the flexible element and mechanically, which significantly increases the reliability of the fastening. The worker fastens himself to the flexible anchor line, climbs the disconnector along the ladder, refastens the insurance on one of the holes of the anchor point, maintains the disconnector, reattaches to the flexible anchor line and goes down. Up to two people can work at the same time.

A wide range of height adjustment and universal mounting mechanisms allow the device to be attached to the vast majority of available types of disconnectors. The device uses universal fastening mechanisms, has less weight, since aluminum alloys and composite materials are used in its design, and has a more advanced mechanism for fixing the telescopic part.

The claimed device can be used in conjunction with several of the same devices, while a flexible anchor line is installed between them, which is a rope, cable or tape with a connecting link (carbine and slider mechanism) and personal protective equipment against falls from a height, which allows to ensure safety in horizontal planes. The device has the ability to install an endless rope at the anchor point.

The device can be equipped with various types of specialized fixing elements for installation on supports of round, square, polyhedral section and on structures made of metal profiles, stops can have hooks, clamps and slings, carabiners in their design.

The device can be equipped with a stand with adjustable feet, which allow the entire device to be adjusted in height, as well as providing reliable contact with uneven surfaces due to the possible use of a hinged element.

The device can be equipped with handles to increase the convenience of transportation.

A flexible element with a tensioning mechanism can be equipped with a protective fabric, rubber or composite protector.

Claims (3)

1. An anchor telescopic pole, consisting of a body, a telescopic part, support nodes mounted on the body, a stand, an anchor point fixed in the upper part of the telescopic part, characterized in that the support node is a glass with two telescopic supports fixed to it with stops , an adjusting spacer is fixed at the base of the supports, the glass of the support assembly has welded flanges at the ends, in which there are holes for fastening the fingers of telescopic supports, in which parts with holes are installed, in which elements of the tie-down belt are fixed. 2. Anchor telescopic pole according to claim 1, characterized in that the body is made of length L1, the telescopic part of length L2 with the possibility of height adjustment within the adjustment range H, determined from the ratios H=Lmax-Lmin, where Lmax=L1+L2× 0.94 and Lmin=L1. 3. Anchor telescopic pole according to claim 1 or 2, characterized in that the length of the body is (0.5÷5) m, the length of the telescopic part is (0.5÷5) m.

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