RU196635U1 - Power Line Quick Mount - Google Patents

Abstract

The utility model relates to the field of construction, in particular to the construction of power lines, and is intended for use as an emergency reserve. The proposed design of a quick-assembly support contains a base of two pairs of interconnected beams located in the longitudinal and transverse directions relative to the axis of the line, as well as the rack , the lower part of which is pivotally connected to the middle of the longitudinal beams, and the upper by means of stretch marks - with the ends of the transverse beams. The stand consists of two fiberglass elements connected on one side by crossbars, and on the other by braces. These elements can be made of profiles in the form of pipes of round or rectangular cross-section, as well as channels. The rack elements (crossbars and braces) are placed along the power line. The proposed design is recommended for emergency replacement of emergency towers in power lines with a voltage of 0.4-10 kV.

Description

The utility model relates to the field of electric power industry, in particular, to constructions of temporary mobile supports of power lines for carrying out emergency emergency restoration work.

State of the art

A known design of pre-fabricated supports for emergency recovery work on power lines [1. RF patent No. 2614180 Е04Н 12/02, publ. 03/23/2017, bull. No. 9]. The design contains two X-shaped struts, a strut, three pivotally connected sections of a triangular base and other parts, including flanges, hinges, flexible traverses and ties.

The disadvantages of the design is its complexity, due to the large number of parts and their flange and swivel joints, which complicates the manufacture and slows down the installation process.

A known design of a fast-mounted support transmission lines [2. RF patent No. 120683 Е04Н 12/00, publ. 09/27/2012, bull. No. 27], including the trunk, surface foundations, insulating traverses, guy wires, additionally equipped with a grillage connected to the trunk by means of a spatial hinge, the verticality of which is regulated by guy wires attached to the trunk in the upper part and to the grillage in the lower part.

The disadvantages of the design are its complexity, high weight, inconvenience of installation.

Also known is the construction of a transmission line pylon installed in a pit using two pairs of fiberglass channels, in which the opposite pairs have the same geometric cross-sectional dimensions, but differ in length [3. RF patent №144157 E044 12/00, publ. 08/10/2014, bull. No. 22].

The disadvantage of the design is the large weight.

The technical task of the utility model is to simplify the design, reduce the weight of the lift rack, increase the proportion of the base weight, provide the possibility of convenient placement of weights, as well as lift the electrician to the rack without the use of lifting mechanisms in emergency situations.

The essential features that characterize the utility model.

Restrictive: the support contains a base of two pairs of interconnected beams located in the longitudinal and transverse directions relative to the axis of the power line, as well as a rack, the lower part of which is connected by a spatial hinge to the middle of the longitudinal beams, and the upper part with a traverse and electrical insulators by means of braces with ends cross beams of the base.

Distinctive: the stand consists of two fiberglass elements connected on one side by crossbars, and on the other - braces located along the axis of the line.

Utility Model Implementation

The essence of the utility model is illustrated by schematic drawings, where in FIG. 1-3 are types of support in various projections. Elements of the rack can be made of fiberglass profiles of various sections (round and rectangular pipes or channels). In FIG. 1 shows a rack made of two channels.

The support strut contains two vertically mounted channel 1, connected by braces 2 and cross members 3. To the upper part of the wall of one of the channels, a traverse 4 with electrical insulators is attached 5. The cross members are attached to the channel shelves on one side, and the braces are attached to the shelves of the opposite side.

The lower parts of the walls of the channels with a spatial hinge 6 are connected with the longitudinal beams 7 mounted above the transverse beams 8.

The upper parts of the channels by stretch marks 9 are connected to the ends of the transverse beams of the base. The length of the stretch marks is regulated by lanyards 10.

It is most rational to reduce the cost of the supports, increase the ease of installation and simplify the manufacture of the base of the support to perform from wooden beams. Details of the rack to minimize weight, it is advisable to make fiberglass. In this case, the mass of the base will significantly exceed the mass of the rack, which can be installed even without the use of lifting mechanisms manually. In addition, reducing the weight of the strut will help to increase the stability of the support during wind loads.

The installation of crossbars on one side of the channels will contribute to a more convenient and safe lifting of electricians in emergency situations without the use of special lifts. The diagonal placement of the braces on the other side of the channels, taking them into account when interacting with the cross members, will provide the necessary rigidity of the rack when exposed to wind.

Mounting the support is as follows.

At the first stage, the base is assembled at the installation site of the support (the rack can be delivered in assembled condition). Initially, transverse beams are laid on the ground 8. The longitudinal beams 7 are joined to them along the width of the spatial hinge 7. The lower ends of the walls of the channels 1 of the pre-assembled rack are connected in horizontal position by the hinge 6 with the longitudinal beams 7.

Then, stretch marks 9 are attached to the top of the rack with eyebolts and eyebolts 10 and lifted. The verticality of the rack is provided by adjusting its position relative to the base with the help of a spatial hinge with two mutually perpendicular rotary axes 11 and 12. To raise the rack, it is possible to use the “falling boom” complete with a manual winch or lift it manually. The estimated weight of the rack with a height of 8-9 m when using fiberglass profiles will not exceed 60-80 kg.

At the final stage, after reaching a stable vertical position, the stretch marks 9 are attached with eye-nuts or eye-bolts to the ends of the transverse beams. Stretch tension is regulated by lanyards 13.

The design of the racks using round and rectangular pipes and the sequence of operations for their installation is completely similar.

If necessary, in areas with increased wind load, weights with the necessary mass are installed on the base beams.

The developed support structure is recommended for temporary installation during emergency recovery work on power lines with a voltage of 0.4-10 kV.

Claims (1)

A quick-assembly power line support containing a base of two pairs of interconnected beams located in the longitudinal and transverse directions relative to the axis of the line, as well as a stand, the lower part of which is pivotally connected to the midpoints of the longitudinal beams, and the upper through stretch marks - with the ends of the transverse beams of the base, characterized in that the post consists of two fiberglass elements of the same profile, connected on one side by cross members, and on the other, by braces located along the axis of the line.

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