RU2511239C1 - Unit of coupling of tubular rods - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely, to units of connection of tubular rods, which are implemented when manufacturing supports of power transmission lines, cellular communication supports, etc. The unit of coupling of tubular rods includes an upper single tubular rod, to the end of which a horizontal flange is fixed, and a response flange, to which at the angle there are ends of lower tubular rods fixed. The response flange is made as separate for each lower tubular rod. Besides, at the end of each tubular rod there are two vertical flanges on each one, being tightened by bolts with similar flanges of adjacent ends of the lower tubular rods. The horizontal and response flanges along the perimeter are tightened by bolts.

EFFECT: increased stiffness of a unit.

2 cl, 4 dwg

Description

The invention relates to the field of construction, namely, nodes connecting tubular rods that are implemented in the manufacture of power transmission towers, cellular towers, etc.

Known collapsible node connecting tubular rods, including the ends of the tubular rods with embedded fittings and flanges attached to them, tightened together by bolts [RF Patent No. 2272109, IPC E04B 1/58. Bulletin No. 8 of March 20, 2006].

A disadvantage of the known nodal connection of tubular rods is that the node does not provide the connection of several tubular rods: three, four, etc.

Another nodal connection of several tubular rods is known [Metallic constructions. Designer reference. T.2. Under the general editorship of V.V. Kuznetsova. M., 1998, p. 463, fig. 17.12 g].

The nodal connection of the tubular rods includes the ends of the tubular rods with flanges, which are bolted together with similar flanges of the welded spatial insert, also from tubular elements.

A disadvantage of the known joint is the complexity of manufacturing by welding a spatial insert with flanges.

Closest to the invention in technical essence is a tubular rod connection unit comprising an upper single tubular rod with a horizontal flange at the end and a counter flange to which intermediate segments of tubular elements are attached at an angle with flanges at the ends to which lower tubular rods are attached through flanges [ Utility Model Patent No. 66363. IPC E02D 27/42. Bulletin No. 25 of September 10, 2007].

A disadvantage of the known node connecting the tubular rods is the increased consumption of steel and the great complexity of manufacturing due to the presence of intermediate segments of tubular elements and insufficient spatial rigidity of the node as a whole.

The invention is aimed at reducing the consumption of steel, the complexity of manufacturing and increasing the rigidity of the site.

The technical result of the invention is ensured by the fact that the connection node of the tubular rods, including the upper single tubular rod with a horizontal flange at the end and a counter flange, to which the ends of several lower tubular rods are angled, while the flanges are tightened around the perimeter by bolts, the counter flange is made separate for each lower tubular rod, while the end of each tubular rod is additionally equipped with two vertical flanges, which are tightened by bolts with similar flanges Mezhno ends of the tubular elements. The greatest efficiency is achieved if the tubular rods are made in the form of a truncated pyramid of a multifaceted cross section, while all ends of the tubular rods are connected in a node by the base of the pyramid.

Figure 1 shows a variant of the support with three lower tubular rods, implemented using the proposed node connecting tubular rods (node A, Figure 1). Figure 2 shows a section 1-1 in figure 1. Figure 3 shows a section 2-2 in figure 1. Figure 3 shows a variant of the cross section of tubular rods.

The connection node of the tubular rods (node A, Fig. 1) includes an upper single tubular rod 1, to the end of which a horizontal flange 2 is attached, and a counter flange 3, to the flange 3, made integral separate for each tubular rod, the ends of the lower tubular are attached at an angle rods 4, for example three. In addition, two vertical flanges 5 are additionally installed at the end of each tubular rod 4, which are pulled together by bolts 6 with similar flanges of the adjacent ends of the tubular rods 4. Flanges 2 and 3 around the perimeter are pulled together by bolts 7. To the base of a single tubular rod 1, made , for example, in the form of a hollow truncated pyramid of a multifaceted cross-section (Figure 4), a horizontal flange 2 is welded. At the ends of the tubular rods 4, reciprocal separate horizontal flanges 3 are welded and an additional two vertically flanges 5 mounted on the rods 4 with the possibility of combining them with similar flanges 5 of adjacent tubular rods 4 to provide spatial rigidity of the node. Combine flanges 2, 3 and vertical flanges 5 with adjacent to them and tighten with bolts 6 and 7, respectively.

The invention allows the manufacture of overhead power transmission towers, cellular towers, etc. The proposed solution to this nodal connection reduces steel consumption, reduces the complexity of manufacturing, increases the spatial rigidity of the node.

Claims (2)

1. The connection node of the tubular rods, including the upper single tubular rod with a horizontal flange at the end and a counter flange to which the ends of several lower tubular rods are attached at an angle, while the flanges are tightened around the perimeter by bolts, characterized in that the counter flange is made separate for each lower tubular rod, while the end of each tubular rod is additionally equipped with two vertical flanges, which are bolted together with similar flanges of adjacent ends of the tubular rods. 2. The connection node of the tubular rods according to claim 1, characterized in that the tubular rods are made in the form of a truncated pyramid of a multifaceted cross section.

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