RU183315U1 - Quick-mounted support for emergency recovery work on power lines - Google Patents

Abstract

The utility model relates to the field of construction and is intended for use in repair and restoration work on power lines.

The portal intermediate support is mounted on a rectangular base composed of two pairs of pipes located longitudinally and perpendicular to the axis of the power line. The support contains two struts, which are braces, a beam, and couplers connected between each other and longitudinal pipes to provide rigidity during lateral wind loads. Distinctive features of the support are the location of the longitudinal pipes of the base over the transverse, the connection of the lower ends of the braces to the longitudinal pipes of the base from their different sides, as well as the installation of spacers between the braces.

The technical result of the developed utility model is to simplify the construction of the support and accelerate its installation.

Description

The utility model relates to the field of electric power and is intended for emergency recovery work in case of destruction of power transmission towers.

The level of technology. A known design of pre-fabricated supports, including X-shaped racks mounted on a foundation, connected by a horizontal beam and a strut pivotally attached to it, flexible connections, crosshead and insulators [1. Auth. Testimonial. No. 1416647 ЕВВ 12/00, publ. 08/15/1988, bull. No. 30]. The disadvantage of the design is its complexity and a large number of flexible connections requiring periodic tightening, as well as the complexity of installation.

Also known is the design of a quick-mounted lightweight support for emergency repair work on power lines [2. 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 the 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.

The essential features that characterize the utility model.

Restrictive: The support is installed on the basis of a rectangular shape, composed of pipes arranged in pairs longitudinally and perpendicular to the axis of the line, to which are connected interconnected racks consisting of two pairs of braces, with a traverse placed between them.

Distinctive: Longitudinal base pipes are located above perpendicular, both pairs of braces with lower ends are pivotally connected from different sides to the longitudinal pipes of the base, and the upper ends are interconnected with spacers along their width.

Implementation of a utility model.

The essence of the utility model is illustrated by schematic drawings, which show the longitudinal and transverse views of the support. (Fig. 1 and Fig. 2).

The support contains a rectangular base of two pairs of pipes 1. One pair is located along the longitudinal axis of the power lines, the second pair is perpendicular. Two pairs of braces 2, interconnected pivotally by the axles 3 of the upper ends through spacers 4 and lower ends with longitudinal pipes of the base from different sides form support struts. To increase the rigidity, the struts of the struts are interconnected by couplers 5. Spacers 4 are made of the same size in width with the diameters of the longitudinal pipes of the base, which makes it possible to drill holes for the hinge axis 3 perpendicular to the pipes, which simplifies the technology of their manufacture. It is advisable to use pipes of the same diameter for the manufacture of supports. In this case, the spacers 4 can be fixed with their lower ends on parallel braces, and a traverse can be attached to the upper ends.

The location of the longitudinal pipes of the base above the transverse helps to create more convenient conditions for raising the racks and provides the opportunity to increase the distances from the ends of the braces to the axes and, therefore, the strength of the lower ends of the braces.

To exclude the possibility of deflection of the longitudinal pipes between them and the ground, it is possible to install additional supports 6, made in the form of segments of pipes used in the base.

Mounting the support is as follows. Perpendicular to the line in the place of the replaced support, the lower base pipes are laid to which longitudinal pipes are attached from above the width of the struts of the supports of the active line. K. the first pair of braces is attached to these pipes with axes from the outer sides in a horizontal position, to which, through spacers, the axes attach a second pair of braces. Spacers and second braces are mounted on the inside of the first braces. The braces are connected to ensure structural rigidity with lateral loads between the screeds. The traverse is attached to the upper ends of the spacers or a pair of braces.

Installation of the support is carried out by a crane or a winch using a falling arrow. The fixation of the second pair of braces is carried out by the axes on the inner side of the longitudinal pipes of the base.

The proposed support structure is recommended for power lines with a voltage of 35-110 kV.

Claims (1)

A quick-mounted portal intermediate support of a power line, mounted on a rectangular base made up of pipes arranged in pairs longitudinally and perpendicular to the axis of the line, racks containing interconnected pairs of braces and a crosshead, characterized in that the longitudinal pipes of the base are located above perpendicular, both pairs the braces of the lower ends are pivotally connected from different sides to the longitudinal pipes of the base, and the upper ends are interconnected with spacers along their width.

Images