RU155698U1 - VERTICAL CORNER BOX FOR LAYING POWER AND CONTROL CABLES AND WIRES - Google Patents

Abstract

The proposed utility model of an angular duct for vertical rotation of the cable route (hereinafter referred to as the angular duct) refers to the field of electrical engineering and can be used for laying cables and wires for various purposes when the vertical cable duct is rotated 90 or 45 degrees up or down. The technical result solved by the proposed utility model is to increase the reliability of the design of the angular vertical box. This is achieved by the fact that in a vertical angular duct containing a housing and a cover made of a monolithic strip by bending to form a base and side walls, the angular duct housing has an open cross-sectional profile. The side walls of the casing of the vertical angular duct in the upper part are equipped with U-shaped bends, and also have symmetrically located holes on both sides, designed for joining the cable duct boxes together. The base of the casing is angular vertical on both sides with oval grooves. In addition, a symmetrical clamping plate made in the form of a rectangular metal plate, the thickness of which is more than two times the thickness of the side walls of the corner box body, is not less than twice the thickness of the side walls of the box, and has a central hole in the design of the angular vertical box. The symmetrical clamping plate is made with the possibility of regulating its location using a washer with a nut. Additionally, a threaded rod is installed in the design of the angular vertical box, installed at the beginning and end of the angular box and made with the possibility of fixing with its lower end through the oval grooves of the base of the corner box body through a threaded connection. In addition, a threaded rod installed on both sides (at the beginning and at the end) of the box and representing an axis with a metric thread on both sides has been introduced for a vertical screed of the corner box body and the cover. This installation of the threaded rods increases the rigidity of the design of the box angular vertical, which leads to an increase in mechanical strength, and accordingly the reliability of the box angular in operation. A cap is fixed on the threaded rod, which is also fixed by a threaded connection and is made of a monolithic strip by bending at right angles with the formation of side walls and the base. The presence of a threaded rod in the design unifies and simplifies the assembly of the angular vertical box. In addition, carbon steel is used as the monolithic strip from which the box parts are made. All surfaces of the angular vertical box parts have corrosion protection in the form of a paint coating with a thickness of at least 50 microns or a metal coating - hot dip galvanizing with a thickness of at least 80 microns, or a combined coating in the form of a paint and varnish and metal coating - hot dip galvanizing with a thickness of 50 μm and 80, respectively microns, or paintwork based on epoxy enamels. Vertical angled box for laying power and control cables and wires can be made with perforated base and cover.

Description

The proposed utility model relates to electrical engineering and can be used as installation products for laying cables and / or wires for various purposes in the open air, inside buildings and structures of energy and general industrial facilities, including nuclear power plants to connect direct sections of the route when its direction changes from a horizontal plane to a vertical up or down at an angle of 90 or 45 degrees.

From the existing level of technology, a conduit for wires is known (RF patent No. 819878, IPC H02G 3/04, publ. 04/07/1981).

The box has bends in its composition. The functional purpose of the taps is to provide wiring when turning the cable route from horizontal to vertical. The lower parts of the taps are attached to the bodies of the direct sections by welding, and the upper to the lower ones using a spring latch.

The disadvantage of this tap is the unreliability and low seismic resistance due to the connection of the upper parts to the lower parts of the structure using a latch.

Signs of removal of the duct box for wires, common with the proposed design of the duct box angular vertical as follows:

- the presence of a housing - the lower part of the tap-analogue;

- the presence of a cover - the upper part of the tap-analogue;

- made with an angle of rotation.

Known box for multi-layer laying of cable products. Branches with casings that make up this box are taken as a prototype (RF patent No. 920930, IPC H02G 3/04, publ. 04/15/1982).

The prototype consists of two parts with a longitudinal plane of the connector, and clips. The casing at the end sections has a square cross-sectional shape and made of two identical parts. The clips are made in the form of Conformable brackets, the latter are installed inside the casing of the bends in the middle sections and connected to one of the parts of the corresponding casing.

The functional purpose of the tap is to ensure the laying of wires in vertical sections.

The disadvantage of the prototype is the lack of reliability during operation of the box, due to the low mechanical strength of the structure.

Signs of the prototype, common with the proposed design of the box angular vertical for laying power and control cables and wires, the following:

- the presence of the housing - the lower part of the casing of the tap;

- the presence of a cover - the upper part of the casing of the tap;

- made with an angle of rotation.

The technical result achieved in the proposed vertical angular duct for laying power and control cables and wires is to increase the reliability of the duct construction.

This is achieved by the fact that in a vertical angular duct for laying power and control cables and wires, comprising a duct housing made with an angle of rotation, and a cover, the duct housing is made with an open cross-sectional profile and is a monolithic strip curved to form a base and side walls. The side walls of the box body are equipped with U-shaped bends in the upper part, and also have symmetrical openings on both sides for connecting the boxes to each other.

In addition, a symmetrical clamping strip made in the form of a rectangular metal plate, the thickness of which is more than two times the thickness of the side walls of the box body and located inside the box body on both sides, is introduced into the design of the angular vertical box for laying power and control cables and wires as well as provided with a central hole.

The symmetrical clamping plate is made with the possibility of adjusting the height of its location using a washer with a nut.

Additionally, for a vertical screed of the box body and the cover, a threaded rod is installed, installed on both sides (at the beginning and at the end) of the box and representing an axis with a metric thread on both sides.

A cap is fixed on the threaded rod, which is also fixed by a threaded connection in the form of a washer with a nut and is made of a monolithic strip by bending at right angles with the formation of side walls and the base.

The monolithic strip, from which the details of the angular vertical box are made for laying power and control cables and wires, is made of carbon steel.

The surfaces of all parts of the angular vertical duct for laying power and control cables and wires have various types of anticorrosion coatings: paint and varnish coat with a thickness of at least 50 μm, metal coating - hot dip galvanizing with a thickness of at least 80 μm, combined coating in the form of hot dip galvanizing followed by paint coating with a thickness of respectively not less than 80 microns and 50 microns, as well as a paint coat based on epoxy enamels.

The base of the box body and the lid can be solid or perforated.

The angle of rotation of the casing vertical for laying power and control cables and wires is selected at least 90 ° or 45 °.

The use of a threaded rod, which is used for vertical screed of the box body of the box of angular vertical and the cover, increases the mechanical strength of the box of the corner, and therefore increases the reliability of the structure during operation.

The use of the clamping plate allows you to attract the cable to be laid (wire) to the base of the box body, thereby preventing it from twisting, and distributing and fixing it in an even position in the box body, which increases the mechanical strength of the structure, and, therefore, increases the reliability of the box structure.

The use of a clamping bar in the form of a rectangular metal plate with a thickness greater than the thickness of the side walls of the box body is not less than two times, due to structural calculations taking into account the strength characteristics of the material used.

The execution of the body of the box and the cover of a monolithic strip by bending at right angles increase the mechanical strength of the structure, and therefore increase its reliability.

All parts of the vertical angular duct for laying power and control cables and wires have a different types of anticorrosive coating.

An anticorrosive coating with a paint coating thickness of at least 50 μm resists its destruction (cracking, peeling) upon impact, and also withstands deformation of the painted surface during bending and resists mechanical stresses: indentation, scratching and, thus, increases the reliability of the box construction.

Corrosion-resistant coating in the form of a metal - hot-dip galvanizing with a thickness of not less than 80 microns ensures fire safety of the product, has high indicators: physical and mechanical properties, impact strength, bending elasticity, tensile strength, elongation at break, which also ensures the reliability of the duct construction .

The use of a combined (paint and varnish and metal - hot-dip galvanizing) anti-corrosion coating gives the total effect of using each coating individually.

Thus, the use of anti-corrosion coating increases the reliability of the design of the box angular vertical.

The proposed design of the angular vertical duct for laying power and control cables and wires is shown: in FIG. 1 (side view), FIG. 2 (top view) - a box with an angle of rotation of the housing up at least 90 °; FIG. 3 (side view), FIG. 4 (top view) - box with the angle of rotation of the body up, at least 45 °; FIG. 5 (side view), FIG. 6 (top view) - box with the angle of rotation of the body down, at least 90 °; FIG. 7 (side view), FIG. 8 (top view) - a box with an angle of rotation of the body down by at least 45 °.

Vertical angled box for laying power and control cables and wires consists of a box body 1 with a base 2 and side walls 3 having symmetrically located U-shaped bends 4 in the upper part and also equipped with symmetrical holes 5 on both sides for connecting with other boxes when installing a cable route at a construction site.

The corner box contains a cover 6, on which there are openings 7 on both sides.

For a vertical coupler of the box body 1 and the cover 6, a threaded rod 8 is inserted, mounted on both sides of the corner box (at the beginning and at the end).

On top of the threaded rod 8, a cover 6 is installed through the holes 7.

The housing 1 of the box and the lid 6 are fixed by threaded connections 9, made in the form of a washer with a nut.

In addition, a symmetrical clamping plate 10 is introduced into the box structure, installed inside the box body 1 on two sides and fixed to the threaded rod 8 on top of the laid cables or wires through the central hole in it (not shown conditionally).

The installation height of the symmetrical clamping plate 10 is regulated by a threaded connection 11, made in the form of a washer with a nut.

The assembly of the angular vertical box for laying power and control cables and wires is carried out as follows:

- the threaded rod 8 is inserted into the holes 7 located in the base 2 of the box body 1 and in the lid 6, and then this connection is fixed on both sides by threaded connections 9 in the form of a washer with a nut;

- then the power or control cable (wire) is laid in the box;

- on the threaded rod 8 is installed a symmetrical clamping bar 10 through the Central hole;

- the installation height of the symmetrical clamping plate 10 is adjusted by the height of the laid cable (wire), and then is fixed by a threaded connection 11 in the form of a washer with a nut;

- on the case 1 of the box is installed cover 6;

- the connection of the covers 6 and the base 2 of the housing 1 of the box is fixed by a threaded connection 9 in the form of a washer and nut.

This vertical angled box for laying power and control cables and wires is used if it is necessary to turn 90 and 45 degrees during installation of the cable route, while the cover of the adjacent box is installed on top of cover 6 and threaded rod 8 of the box in question.

The connection of the base 2 of the housing 1 of the duct under consideration with the base of the housing of the adjacent duct through the oval grooves (not shown in FIG.) Contained therein is fixed by the lower threaded connection 9 in the form of a washer with a nut.

All parts of the vertical box are made of one metal (carbon steel).

Each part of the box is equipped with an anti-corrosion coating.

Fasteners are used in Russia according to the interstate standard.

The design of the angular vertical duct for laying power and control cables and wires is resistant to seismic effects, an earthquake of 9 points, which corresponds to seismic resistance category 1.

The design of the box is stable, withstands the emerging mechanical stresses from environmental factors.

The design of the box withstands all modes of normal operation, as well as test and emergency modes, which is confirmed by the acts of tests.

Claims (3)

1. The box is angular vertical for laying power and control cables and wires, comprising a housing made with an angle of rotation, and a cover, characterized in that the housing of the duct is made of a monolithic strip by bending at right angles with the formation of the base and side walls equipped with P- with shaped bends and symmetrically located openings on both sides, designed for joining the vertical corner box with other boxes from the cable route to each other, while the box body is made with an open profile cross-section, in addition, a symmetrical pressure plate made in the form of a rectangular metal plate, the thickness of which is more than two times the thickness of the side walls of the box body and located inside the box body on both sides, as well as having a central hole, is additionally introduced into the box structure while the symmetrical clamping plate is made with the possibility of adjusting the height of its location using a threaded connection in the form of a washer with a nut, in addition, additionally in the design a threaded rod inserted on both sides of the duct (at the beginning and at the end), the threaded rod is made in the form of an axis with a metric thread on both sides, while a symmetrical clamping plate is fixed to the threaded rod through the central hole and the cover a box made of a monolithic strip by bending at right angles with the formation of parallel side walls and a base, which is fixed by a threaded connection in the form of a washer with a nut, in addition, as a material of a monolithic polo The system from which the box parts are made uses carbon steel, and all surfaces of the box parts have corrosion protection in the form of a paint coating at least 50 μm thick, or a metal coating - hot dip galvanizing at least 80 μm thick, or a combined coating in the form of a paint and metal coating - hot-dip galvanizing with a thickness, respectively, of at least 50 μm and 80 μm, and also a paint coat on the basis of epoxy enamels. 2. The box is angular vertical for laying power and control cables and wires according to claim 1, characterized in that the base of the box body and the lid are provided with perforations. 3. The box is angular vertical for laying power and control cables and wires according to claim 1, characterized in that the rotation angle of the box body is selected 90 ° or 45 ° when laying the cable route up or down.

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