RU2756448C1 - Inventory scaffolds of manual assembly - Google Patents

Abstract

FIELD: construction industry.

SUBSTANCE: invention relates to means that make it possible to conduct construction work at height, and can be used in various areas of construction. The expected result is achieved by the fact that the inventory scaffolds of manual assembly contain tower-type sections, with tubular racks having corner plates mutually perpendicular and oriented outward from the tower-type section of the scaffolding, with holes for installing a corresponding platform on them, having in plan the shape of a sector truncated by chords, supported along each forming line of the sector, as struts, by two diagonal ties fixed in the holes of the platform, while to the mutually perpendicular corner plates of the neighboring left or right tubular rack, but one corner plate tier higher, a platform having the form of the mentioned sector is also installed on the lower holes, the outer sides of the platforms have the shape of a sector truncated by chords in the plan and form a broken line along the outer part of the perimeter of the platform with angles between them amounting to 135°, and along each forming line of the sector, the platform is also supported, as struts, by two diagonal ties, also fixed in the holes of this platform, between which a flight of stairs is installed with support on both platforms with the formation of spiral stairs of the left or right direction, having tubular railings on the platforms and staircases, connected to each other by means of cotter pins, having on their upper part undulating bends fixing their working position, and the railings of the flight and the platforms are attached, respectively, to the platform and to the stairway due to the telescopic connection of one of their pipes with another at the junction, and the railings of the stairway flights and the railings of the platforms form an inseparable helical structure by means of their bushings, connected to each other by cotter pins installed in the bushings.

EFFECT: creation of reliable and safe in operation inventory scaffolds of manual assembly, providing an increase in the pace of their assembly while ensuring the safety of assembly work, in particular, when moving between their tiers.

1 cl, 10 dwg

Description

The invention relates to means that provide the ability to conduct construction work at a height and can be used in various areas of construction, including in industrial and civil construction, bridge construction as load-bearing structures of various technological elements, for example, horizontal formwork of monolithic reinforced concrete supports and spans, as load-bearing elements and wall frames of a technological shelter (hothouse), temporary auxiliary supports, enlarged slipways, directly working scaffolds.

Known scaffolds containing a set of elements in the form of vertical tubular racks, interconnected by means of connecting nodes with transverse tubular horizontal ties (JP 58-15588, 1983).

Known scaffolds for the construction of monolithic span structures of the bridge, containing a set of elements in the form of vertical tubular struts combined with each other by means of connecting nodes by transverse tubular horizontal ties, in the lower part of which screw jacks can be installed, while the tubular struts are made prefabricated in height due to the extension at the junction of one pipe to another by at least two diameters of the tubular rack, and the connecting nodes are made in the form of flanges, round in plan, fixed on tubular racks with trapezoidal holes evenly spaced along the perimeter, in one of which there is a wedge, which also fixes having a hole for a wedge, a support table, rigidly connected to the end of the transverse horizontal connection and located on the flange, and the total thickness of the flange and the support table at the point where they are connected by a wedge is at least 2/3 of the diameter of the horizontal connection pipe (RU 2143025, 1999).

The closest of the known are hand-assembled inventory scaffolds, containing horizontal and diagonal braces, grillages, girders and parallel installed tubular posts with flanges having holes, and the lengths of the posts are 4: 2: 1, and gussets adjoin the flanges of the larger and smaller ones with holes for accommodating the fastening elements of transverse horizontal ties, at least one of the overall dimensions of the flange installed from one of the ends of the tubular larger or middle rack exceeds the corresponding size of the flange installed from the other, preferably the lower, end of the rack by 2.2- 1.8 times while ensuring the alignment of the holes made in the flanges of all the posts, and at least one of the dimensions of the flange of the smaller post is equal to the corresponding size of the smaller flange of the larger post, and, at least in part of the posts in the area between the packings, spaced from corresponding flange for 1.3-1.6 rack diameters, preferable flax threaded hole for a retainer that limits the movement of the jack screw, located at least in the upper tubular racks with the ability to tilt up to 4% to the horizon of the working planes of the technological elements mounted on them. In addition, large posts in the middle part have at least one additional gusset with holes formed in it, the longitudinal axes of which are parallel and do not lie in the same plane, and the smaller posts in the middle part have at least one gusset with formed in it with holes, the longitudinal axes of which are parallel and do not lie in the same plane. In this case, the length of the screw of the jack exceeds the length of the smaller rack, and the jack has a working stroke from 0 to 350 mm. Racks and jacks can be placed in combination, which ensures a smooth change according to a given scheme of the height of the working level installed in their upper part of the technological elements (RU # 2199638, 27.02.2003).

The known solutions do not allow to fully ensure the safety of work with their use due to the cramped conditions of movement along them, especially when moving between tiers, as well as the safety of work on the installation of the actual inventory scaffolds with the intensification of installation and construction work at a height.

The technical task is to create reliable and safe manual inventory scaffolds in operation, providing an increase in the pace of their assembly while ensuring the safety of assembly work, in particular, when moving between their tiers.

This is achieved by the fact that the hand-assembled inventory scaffolds contain tower-type sections, with tubular posts having mutually perpendicular and outwardly oriented gusset plates with holes for installing an appropriate platform on them, having the shape of a sector truncated by chords, supported by each generating line of the sector, like struts, with two diagonal ties fixed in the holes of the platform, to the mutually perpendicular gussets of the adjacent left or right tubular rack, but one tier of gussets above, a platform that looks like the mentioned sector is also installed on the lower holes, the outer sides of the platforms , having in plan the shape of a sector truncated by chords and forming a polyline along the outer part of the perimeter of the site with angles between them equal to 135 °, and along each generating line of the sector, the site is also supported, like struts, by two diagonal ties, also fixed in the holes of this site, between to by which a staircase is installed with support on both platforms with the formation of spiral staircases of the left or right direction, having tubular railings on the platforms and flights of stairs, interconnected by means of cotter pins, having on their upper part wavy bends fixing their working position, and the railings of the march and the platforms are attached, respectively, to the platform and to the staircase due to the telescopic one at the junction of one of their pipes with another, and the railings of the flights and railings of the platforms form an inseparable helical structure by means of their bushings connected to each other by cotter pins installed in the bushings.

The invention is illustrated by drawings, where:

- in Fig. 1 shows a general view of hand-assembled inventory scaffolds;

- in Fig. 2 is a plan view of a tower-type section with platforms;

- in Fig. 3 - node A connecting the platform with the gusset in Fig. 1;

- in Fig. 4 - stair railings;

- in Fig. 5 - flight of stairs;

- in Fig. 6 is a section along AA in FIG. 5 with an increase in the attachment point of the staircase;

- in Fig. 7 - platform, front view;

- in Fig. 8 - platform, top view;

- in Fig. 9 - platform railings, front view;

- in Fig. 10 - platform railing, top view.

Disclosure of invention

Inventory scaffolds, hand-assembled, contain sections of the tower type (Fig. 1), having tubular posts 1. On the posts 1 are fixed mutually perpendicular and oriented outward from the section of the tower type gussets 2 with holes 3 for installing the corresponding platform on them 4. Such platforms 4 have the shape of a sector truncated by chords. This form is most consistent with the safety of work in cramped conditions with manual movement of goods by construction workers or installers without areas of any intersection of organized routes of movement and cargo flows. In addition, this form provides, when the dimensions of the transported goods are known, for free maneuvering within the remote horizontal platform 4. At the same time, to ensure the safety of work, each platform 4 is supported along each generating line of the sector, both by struts 5 and by two diagonal ties 6 fixed in the holes of the platform 4, to the mutually perpendicular gussets 2 of the adjacent left or right tubular rack 1, but one tier of gussets 2 higher. A platform 4 is also installed on the lower holes, which has the form of the above-mentioned sector. The outer sides of all platforms 4 have the shape of a sector 7 truncated by chords and form a broken line along the outer part of the platform perimeter with angles between them equal to 135 °. Along each generating line of the sector, the platform 4 is also supported, like struts, by two diagonal ties, also fixed in the holes of this platform, between which a staircase 8 is installed on a kosour with support on both platforms 4 with the formation of spiral staircases of the left or right direction. Platforms 4 and flights of stairs 8 have tubular railings 9 and 10, respectively, connected to each other by means of cotter pins 11 having on their upper part undulating bend 12 fixing their working position. Railings 10 and 9 (march and platform) are attached, respectively, to the site 4 and to the flight of stairs 8 due to the telescopic at the junction of the connection of one of their pipes to the other. In this case, the railing of the flights and the railing of the platforms form an inseparable helical structure by means of their bushings, connected to each other by cotter pins installed in the bushings.

Inventory scaffolds of manual assembly (IPRS) are equipped with platforms made in the above manner, stair flights, railings of stair flights and railings of platforms connected by cotter pins, installed on a tower-type section of the main set of manual scaffolds (Fig. 1), with the formation of a helical structure of the left or the right stair screw (ladder). To the mutually perpendicular gussets of the tubular post located outward from the tower-type section of the main set of hand-assembled scaffolds on the required tier, a platform is installed on the holes, having the above-described sector view, and along each generatrix line of such a sector it is supported as struts, by two diagonal ties of the main set with fasteners to the openings of the platform. To the mutually perpendicular gussets of the adjacent (to the left or to the right, depending on the need to create a helical structure, respectively, of the left or right staircase screw) tubular rack, but one tier (step) of the gussets above, a platform is installed on the lower holes having the sector view described above, and along each generatrix line, the sector is supported as struts, by two diagonal ties of the main set with attachments to the openings of the site. When two adjacent platforms are installed on struts and secured against displacement, a flight of stairs is installed, relying on both platforms with an anti-displacement fixation. To ensure safety when climbing to a height to the platform installed first (on the lower tier), a railing of the platform is installed, then the railing of the march is installed on both sides along the stringers of the staircase, then the railing of the platform of the next tier is installed. The elements of the railing of the march and the platform are attached to the march and the staircase by sliding at the junction of one pipe into another. For the formation of marches and railings of the platforms of an inseparable helical structure from the railings, they have bushings in their design and are connected to each other with cotter pins installed in the bushings. The next platform is hung on the next tier in height, moving along the initially selected right or left helical structure. And so on, up to the required level. Tower-type sections of the main set of hand-assembled scaffolds (Fig. 1), located vertically and fastened to each other, with elements installed on them forming a ladder, to increase the safety of work, can be secured against displacement and falling by connecting them with a certain step in height to stiffeners (for example, capital structures) using elements of the main set of hand-assembled inventory scaffolds (for example, struts and / or diagonal braces).

Claims (1)

Hand-assembled inventory scaffolds, containing tower-type sections, with tubular posts having mutually perpendicular and outwardly oriented from the tower-type scaffold section, gussets with holes for installing on them a corresponding platform in the shape of a sector truncated by chords, supported along each generating line of the sector, as struts, with two diagonal ties fixed in the holes of the platform, characterized in that to the mutually perpendicular gussets of the adjacent left or right tubular rack, but one tier of gussets above, a platform is also installed on the lower holes that looks like the above sector, the outer sides of the platforms have in plan, the shape of a sector truncated by chords and form a polyline along the outer part of the site perimeter with angles between them equal to 135 °, and along each generating line of the sector, the site is also supported, like struts, by two diagonal ties, also fixed in the holes of this site, between which and is installed with the support of a staircase on both platforms with the formation of spiral staircases of the left or right direction, having tubular railings on the platforms and stair flights, interconnected by means of cotter pins, having on their upper part wavy bends fixing their working position, and the railings of the march and the platforms are attached, respectively, to the platform and to the staircase due to the telescopic one at the junction of one of their pipes with another, and the railings of the flights and railings of the platforms form an inseparable helical structure by means of their bushings connected to each other by cotter pins installed in the bushings.

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