RU36418U1 - SCAFFOLD - Google Patents

Description

The utility model relates to construction and is intended for construction and installation work at heights.

Known scaffolding installed on the wall for construction and installation work at height, containing the work platform and the support posts connected to it, each of which is made in the form of rods connected by jumpers, while one (or both) of the support posts is installed (installed) tilted and free ends supported on the floor.

There are well-known "Construction and mounting scaffolds described in the patent for invention JV2 2026938 with a priority of 06/15/1990, author Sasym Mikhail Alekseevich, published in the Official Bulletin of the Russian Federation on 01/20/1995.

Construction and mounting scaffolds, including two bases in the form of stairs tapering upwards, a floor installed between the bases and connecting the ties to the bases, characterized in that, in order to increase reliability in operation and ensure folding, the bases are provided with internal cross members fixed at a distance from the steps, equal to the thickness of the flooring, and the external cross members located in the lower part of the bases, and the flooring is installed in the gap between the steps and the internal cross members, and the cord between the outer cross sections us, while the cord is made with emphasis on one end and with a number of holes and a latch on the other.

Known "Scaffolding described in the patent for invention No. 2014416 with priority from 05.16.1991. Authors and Feskova EM, published in the Official Bulletin of the Russian Federation on January 20, 1995.

Scaffolds containing a working platform with a supporting frame made of tubular elements, supporting rods attached to two opposite sides of the frame, which are mounted obliquely on one side of the frame and have the possibility of a fixed rotation of 180 °, characterized in that, in order to increase the convenience of operation, fastening the rotary rods are made in the form of tubular elements that enter the ends of the tubular bends, rods on opposite sides of the frame have jumpers connecting them, non-rotating rods are attached to the frame perpendicularly to its plane, and the tubular frame elements are rigidly interconnected.

g 00 3 1 2

IPC E04G1 / 18

SCAFFOLD

02.20.1996 author Shashkova V.P., published in the Official Bulletin of the Russian Federation 11/27/1997

Stepped telescopic scaffolds containing a frame with a deck, a girder and tubular telescopic support racks with a system of clamps and locking devices, characterized in that they are equipped with nozzles rigidly attached to the bottom of the frame and run through clamps, and consoles for additional working flooring, which made with sleeves, and in the places of docking with the frame fixed with pins in the pipes, and the additional working flooring is assembled from connected by links and placed between the stops u itov.

The closest in technical essence to the claimed utility model is the invention of “Panel-telescopic scaffolds described in the Certificate of Authorship No. 966195 with a priority of 03/27/1981. authors Shashkova V.P., Ekimenko L.I., Smolkina I.G. and Volynsky V.A., published on 10/15/1982. in the Official Journal. No. 38, which is selected as a prototype.

Panel-telescopic scaffolds containing a frame with a flooring and tubular telescopic support racks with a system of clamps and locking devices are equipped with additional pipe bends, with vertical guides, while the racks are connected in pairs.

These scaffolds are laid out and folded using a lifting mechanism, in connection with which their use is limited only to outdoor work.

The disadvantages of the known scaffolds include the complexity of the design, the greater complexity in the assembly, rearrangement and dismantling, as well as the high material consumption and dimensions during transportation.

The objective of the claimed utility model is to increase the ease of use of scaffolds due to the construction of easily disassembled and assembled without the use of lifting mechanisms, which can be used both for external and internal repair and construction work, and in disassembled form can be compactly packed, conveniently stored and transported by one person .

This problem is solved due to the fact that the scaffolds containing the frame with the flooring and tubular support posts, made with the possibility of discrete changes in length, the frame is made in the form of two metal tubes of "U-shaped, to the horizontal part of which the opposite edges of the flooring are attached, and vertical - supporting struts, and the horizontal parts of the tubes of the frame have protrusions (extension) beyond the area of the flooring, the ends of which are bent at an angle of 90 ° vertically downwards, i.e. go into the vertical sections of the tubes of the frame.

In this case, the support posts are connected to the frame supporting the flooring using a threaded connection, for which the ends of the tubes of the frame and the upper edges of the tubular support posts are equipped with a mating thread.

The implementation of the frame in the form of two curved tubes of "U-shape with the presence of a protrusion (removal) of horizontal sections outside the flooring area increases the distance between the support posts attached to each of the two tubes of the frame, which increases the structural stability along these tubes. It was experimentally established that a protrusion (extension) of 100 + 20 mm is optimal.

This provides the necessary stability of the entire construction of the scaffolds with vertical (not inclined) support racks, which makes the scaffolds more convenient during repair work, more compact when moving them disassembled, and also during storage.

The scaffold flooring is a work platform made in any known manner, most often from boards fastened together with a gap or without a gap, and the outer boards, as a rule, are screwed to the frame tubes using bolts.

The tubular support racks of the claimed scaffolds are made with the possibility of discrete changes in length, i.e. consist of several sections of tubes that are mechanically interconnected, which, by adding or removing along the working length of the rack of one or several sections, respectively increase or decrease the size of the support columns by the length of this section or the total length of several sections.

In this case, an increase or decrease in the working length of the support posts can be carried out by any of the known methods, for example:

- by screwing or unscrewing additional tubular sections with an external thread at the ends connected by couplings with an internal thread;

- by connecting or disconnecting additional tubular sections, the ends of which are mated by a special profile and secured with position fixers;

-by using the folding or folding of the support posts made of articulated tubular sections, and fixing the required length using a system of clips and locking devices;

-etc.

The implementation of tubular support racks with the possibility of a discrete change in length allows you to change the height of the working deck of the scaffolds depending on the required height for repair work. Moreover, based on considerations of convenience of work on the scaffolds of the “average person, the optimal dimensions of the tubular sections of the support posts are in the range from 0.3 m to 0.8 m.

Thus, the claimed utility model is a construction of scaffolds, which can be used both for external and internal repair and construction works, makes it easy to disassemble and assemble the scaffolds by one person without the use of lifting mechanisms, and can be packaged in a disassembled form, conveniently stored and move around by one person.

In the particular case of the implementation of the proposed scaffolds, the parts of the horizontal section of each of the two tubes of the "U-shaped" frame, forming a take-out outside the flooring area, are bent in the horizontal plane towards each other outward from the flooring by an angle of no more than 90 °.

Due to these additional bends of the horizontal protruding sections of the tubes of the carcass, the distances between adjacent support legs connected to the ends of two different tubes of the carcass increase, which increases the stability across these tubes. An angle of 45 ° with a fixed size of the offset allows you to simultaneously get the maximum distance along and across the tubes of the frame, i.e. in both directions of the sides of the flooring, which is optimal from the point of view of the overall stability of the scaffolds.

The specified implementation of the frame provides even greater stability of the entire construction of the scaffold as a whole.

In the particular case of the implementation of the claimed scaffolds, at least two adjacent tubular support legs have a series of through holes (vertical slots) with a pitch of 250-350 mm in height, into which long metal brackets are inserted, which act as steps. The presence of steps, at least on one side, increases the convenience of working with scaffolds.

In the particular case of the implementation of the claimed scaffolds, the lower ends of the tubular support racks are provided with flanges (“heels), which protects the floor surface of the repaired building from damage by the supporting racks of the scaffolds. In this case, the flanges (“heels”) are either inserted into the lower ends of the support posts, if necessary, or are pressed in permanently.

In the particular case of performing the flooring of the declared scaffolds, it is equipped with a retractable bracket with a hook, on which a bucket with paint, emulsion, etc. is hung. The bracket is stationary mounted on the stops between the floorboards with the possibility of its extension and fixing in the working position. In this case, the bracket is installed either vertically or tilted behind the flooring to save its working area, i.e. in working position, the bracket forms an angle of 90 ° - 135 ° with the deck.

in the particular case of the implementation of the claimed scaffolds, each of the support racks is made telescopic in the form of two tubes entering one another with a system of clamps. The outer and inner tubes have a series of through holes (vertical slots) with a pitch of 250-350 mm in height, through which clips of their chosen mutual position are inserted, which determines the height of the scaffold deck. Thus, if necessary, pushing the inner tube of the support column from the outer and fixing the desired position with the help of clamps, it is possible to change the height of the scaffolds discretely with a step of the location of the slots.

Figure 1 presents a General view of the scaffolds in the General case of their implementation.

Figure 2 presents the types of scaffolds in the general case of execution: a) front view, b) side view (from the end), c) top view.

On Fig.3 shows a top view of the scaffolds in the particular case of execution with bent protruding parts of the tubes of the frame protruding beyond the flooring.

Figure 4 presents the end view of the scaffolds in the particular case of execution with staples-steps.

In FIG. 5 shows the lower end of one tubular support rack of the scaffolds in the particular case of the implementation of supports with flanges.

In FIG. 6 shows the scaffold flooring in the particular case of execution with a retractable bracket with a hook.

In FIG. 7 shows a General view of the scaffolds in the particular case of execution with telescopic support racks.

Scaffolding in the general case of execution (see Fig. 1,2) contain a frame 1 made in the form of two metal tubes of "U-shape, to which the opposite edges of the flooring 2 are attached, and tubular support posts 3 made with the possibility of a discrete change in length .

For this, the tubes of the carcass 1 have an extension beyond the area of the deck 2, and their ends are bent 90 ° vertically downwards and are threaded. The upper edges of the tubular support posts 3 for attachment to the frame 1 are also provided with mating threads.

Flooring 2 is a working platform, usually made of boards fastened together with a gap or without a gap, and the outer boards, as a rule, are screwed to the tubes of the frame 1 with bolts.

The tubular support posts of 3 scaffolds are made with the possibility of discrete changes in length, i.e. consist of several mechanically collapsible sections ranging in size from 0.3 m to 0.8 m with a system of clamps of the desired position (not shown).

in the particular case of the implementation of the proposed scaffolds (see Fig. 3), the parts of the horizontal section of each of their two tubes of "U-shaped frame 1, forming protrusions (extension) beyond the area of the flooring 2 are bent in a horizontal plane towards each other outward from the flooring at an angle no more than 90 °.

In the particular case of the implementation of the claimed scaffolds (see Fig. 4), at least two adjacent tubular support posts 3 have a series of through holes (vertical slots) 4 with a pitch of 250-350 mm in height, into which long metal brackets 5 are inserted, acting as steps .

In the particular case of the implementation of the claimed scaffolds (see Fig. 5), the lower ends of the tubular support posts 3 are provided with flanges (“heels) 6, which are either inserted into them if necessary, or pressed in permanently.

In the particular case of the implementation of the claimed scaffolds (see Fig. 6), the deck 2 is equipped with a retractable bracket with a hook 7 for a bucket of paint, emulsion, etc. The bracket 7 is stationary mounted between the boards of the flooring 2 with the possibility of its extension and fixing in the working position, when it forms an angle of 90 ° -135 ° with the flooring.

In the particular case of the implementation of the claimed scaffolds (see Fig. 7), each of the support posts 3 is made telescopic in the form of tubes entering one another with a system of clips. The outer and inner tubes have a number of through holes (slots) 4 with a pitch of 250-350 mm in height, through which metal brackets 8 are inserted, fixing their selected mutual position, which determines the height of the flooring in the scaffolds.

To implement a useful model - scaffolds for repair and construction works, both in the general case of their implementation (see Fig. 1,2), and in particular cases of execution (see Fig. 3-7), materials commercially available in industry can be used and purchased items. The following is an example implementation of the claimed utility model, and the weight of such scaffolds is up to 12 kg.

For frame 1, two tubes of ferrous metal were used (for example, St.Z with an external diameter of 16 mm and a wall thickness of 2 mm) of a “U-shape, having protrusions beyond the corners of the flooring by 100 mm, with 50 mm ends bent at 90 ° downward external thread on them 25mm. In addition, each tube at the edges of the flooring has two through holes for bolts with a diameter of 4 mm for its fastening. The tubes are cleaned externally with an abrasive and coated with anti-corrosion paint.

Flooring 2 is assembled from four pine boards 1000 mm long, 125 mm wide and 30 mm thick each as follows. The two extreme boards on opposite sides in the center have a through hole for bolts with a diameter of 4 mm for fastening them to the metal tubes of the frame 1, as well as on one side - recesses 10 mm long and 4 mm in diameter under the stops. Two inner boards have these recesses under the stops on both sides. As stops, for example, aluminum rods with a diameter of 4 mm and a length of 25 mm or wooden pins of the same size can be used. Boards are processed to a smooth surface and impregnated with an antiseptic against moisture and insects. The prepared and processed boards are tightly mounted on the stops, the extreme ones are attached to the metal tubes of the frame with bolts from below, and the middle ones are connected at the edges with metal strips 35 mm long, 10 mm wide and 2 mm thick. Moreover, the total size of the flooring is 1000 mm -515 mm 30 mm.

Support racks 3 are made telescopic from two sections; pushing the inner tube from the outer to the required length and securing the desired position with the help of brackets 8, change the height of the scaffold deck discretely with a spacing of slots 4.

The supporting posts 3 are made of the same metal as the tubes of the carcass 1. In this case, the outer (thick) tubes have a length of 750 mm and an inner diameter of 16 mm with an internal thread at the upper end of 25 mm, with which they are screwed onto the ends of the tubes of the carcass, and the inner tubes have a length of 725 mm and an outer diameter of 16 mm.

Both tubes have two vertical slots 4 (22-Zmm in size): one at a height of 300 mm, and the other at 550 mm from the bottom edge, through which metal brackets are inserted 8. Fixing brackets 8 are made of ferrous metal (St.3), machined as stated above, 30mm long, 20mm wide and 2mm thick.

Instead of fixing short brackets 8, long metal brackets 5 are inserted into the slot of two support posts 3 from the end side of the scaffold flooring 8, fixing the required mutual position of the inner and outer tubes and simultaneously acting as steps. The long brackets 5 are made of a strip of 30-6 mm of black machined metal (St.3) of an appropriate length (at the end of the scaffolds - 760 mm).

Rubber (or plastic) flanges 6 are pressed into the lower ends of the tubular support posts 3 with a diameter of 50 mm and a thickness of 3-4 mm.

Retractable bracket with hook 7 for a bucket of paint, emulsion, etc. it is also made of a strip 30-6 of black machined metal (St.3), pivotally mounted on a stop between the middle boards of flooring 2 with the possibility of its extension by turning and fixing in the working position when reaching an angle of 120 ° with the flooring using a restrictive plate, the role of which performs a metal bar connecting the internal flooring boards.

Claims (6)

1. Scaffolding, containing the frame with the floor and tubular support posts, made with the possibility of discrete changes in length, characterized in that the frame is made in the form of two metal tubes of "P" -shaped form, to which the opposite edges of the floor are attached, and the tube frame outside the flooring area, and their ends are bent 90 ° vertically downward and provided with an external thread, and the upper edges of the tubular support posts are equipped with an internal thread. 2. Scaffolding according to claim 1, characterized in that the parts of each of the two tubes of the “P” -shaped frame, forming a take-out outside the flooring area with ends bent 90 ° vertically downward, are bent towards each other outward from the flooring and form an angle with a vertical plane of not more than 90 °. 3. Scaffolding according to claim 1, characterized in that at least two adjacent tubular support legs have a series of through holes (vertical slots) with a pitch of 250-350 mm in height, into which long metal brackets are inserted, which act as steps. 4. Scaffolding according to claim 1, characterized in that the lower ends of the tubular support posts are provided with flanges. 5. Scaffolding according to claim 1, characterized in that the flooring is equipped with a retractable bracket - a holder with a hook, which is stationary mounted between the flooring boards with the possibility of its extension and fixing in the working position when it forms an angle of 90-135 ° with the flooring. 6. Scaffolding according to claim 1, characterized in that the support posts are made telescopic, and all the pipes of the posts have a series of through holes with a pitch of 250-350 mm, into which, when the inner tubes are extended, brackets are inserted to fix the relative position of the pipes in the support posts .