SU1319128A1 - Load-carrying structure for electric networks - Google Patents

Abstract

The invention relates to electrical engineering, in particular to electrical installation products. The goal is to simplify the design and installation. The device contains box-shaped sections 1, the side walls of which have a curved section, and a connector (C) 2. C 2 is made in the form of a tubular element of oval or round shape, having diametrically opposite longitudinal grooves at both ends. During assembly, adjacent sections 1 are pushed into the grooves of the connector until they stop, while sharp edges of the grooves cut into the surface of the side wall in a curvilinear section when tightening the fastening element 3 to form a linear contact. -6 Il. ae (Ls: Points of lines mn time with CX) FIG. 2

Description

The invention relates to electrical engineering, in particular to electrical installation products, and can be used in the construction of supporting structures of electrical networks (trays, ducts) used in the quality of a grounding conductor (vanishing).

The purpose of the invention is to simplify the design and installation.

FIG. Figure 1 shows the electrical network carrier design, general view; FIGS. 2 - section, cross section; FIG. 3 shows a connection using a standard pipe; FIG. L and 5 - tubular connector, general view; in fig. 6 is the same cross section.

The electrical grid supporting structure contains box sections 1, connector 2 and clamping fasteners 3 with a washer 4. The side walls of sections 1 have a curved section, and rectangular cuts 5 and 6 o are made at the ends. The walls of sections 1 also have oval holes 7 for installation fastener 3.

The connector 2 is made in the form of a tubular element of oval or round shape, having on both sides at each end a longitudinal through grooves 8 with sharp edges 9, as well as a threaded 10 and a smooth 11 hole.

The assembly of the sections 1 of the electrical grid supporting structure is carried out by installing the connector 2 into the rectangular notches 5 and 6 end -. parts of lateral adjacent sections. Adjacent sections 1 are pushed into the grooves 8 of the connector until it stops, while parts of the connector 2 are installed on the outer and inner sides of the side walls of the sections 1 with overlapping the lengths of the latter.

The curvilinear wall surface of the sections, the entrance to the grooves 8 of the connector 2, forms an electrical contact due to the fact that the sharp edges 9 of the grooves 8 are pressed into the wall surface and are closed with it. Electric .1 the contact is established in

due to the fact that the curved wall surface and the sharp edges of the connector when tightening the fastening element 3 have not a point, but a linear mechanical contact. The threaded fastener 3 is inserted into the opening 11 and the opening 7 of the wall. The section is screwed into the threaded hole 10 of the connector 2. A spring washer 4 is used to secure the threaded connection (vibration, etc.).

As compared with the known device, making the connector in the form of a tubular element with diametrically opposite grooves on each side and arranging the side walls of the sections along each pair of diametrically opposite grooves of the connector allow simplifying the design and its installation as a result of using a simpler connector design.

Formula of invention

An electrical network bearing structure comprising box sections with side walls having a curved section, at the ends of which rectangular cuts are made, a connector, parts of which are installed on the outer and inner side of the side walls of the sections in the zone of their joint

with overlapping lengths of parts of the latter, having on both sides longitudinal through grooves with sharp edges interacting with the curvilinear surface of the side walls of the adjacent sections, and tightening elements mounted in the respective openings of the side walls and connector, which differs from in order to simplify the construction and installation, the connector is made in the form of a tubular element with diametrically opposite grooves on each side, with the ends of the side walls of adjacent sections in a section with a curvilinear surface placed along each pair of diametrically opposed connector slots.

FB / g.Z.

ten

Fy

P

FI.5

eight

g

fPuz.B

Editor Oh, Golov ah

Compiled by A. Migap

Tehred N.Glushchenko Proofreader M.Sharoshi

Order 2520/48 Draw 618 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing plant, Uzhgorod, st. Project, 4

Claims (1)

Claim The supporting structure of electric networks, containing box sections with side walls having a curved section, at the ends of which rectangular cutouts are made, a connector, parts of which are installed on the outside and inside of the sides. the walls of the sections in the area of their junction with overlapping parts of the length of the latter, having longitudinal through grooves on both sides with sharp edges interacting with the curved surface of the side walls of adjacent sections, and coupling elements installed in the corresponding holes of the side walls and the connector, characterized in that , in order to simplify the design and installation, the connector is made in the form of a tubular element with diametrically opposite grooves on each side, while the ends of the side walls of adjacent sections in a section with a crooked a linear surface is placed along each pair of diametrically opposed grooves of the connector.