RU2097508C1 - Stepped telescopic scaffold - Google Patents

Abstract

FIELD: construction industry, specifically, to stock scaffolds for brick laying of walls of various buildings and structures. SUBSTANCE: known scaffold including frame with flooring and tubular telescopic bearing posts with system of fixing arms and locks is supplemented with additional flooring composed of panels joined by bracings between rests, in points of jointing and resting against cantilevers arranged beneath existing one. They are fixed by pins in branch pipes rigidly anchored at bottom of frame. Cantilevers are fitted with sleeves, separable posts and additional working flooring assembled from panels joined by bracing between rests placed above existing ones. Scaffold is provided with auxiliary flooring lined to bottom of frame and purlin and has additional holes which are positioned with the use of extended tubes of bearing posts. EFFECT: enhanced functional reliability of proposed scaffold. 2 cl, 10 dwg

Description

 The invention relates to the construction, in particular to the means of scaffolding, namely, inventory scaffolds for the erection of brick walls of various buildings and structures, and can be used in the construction and installation works.

 There are several scaffolds containing flooring and various designs of support racks / a.s. USSR N 310018 dated July 26, 71 A.S. N 380810 from 05.15.73, and.with. N 573554 from 09.25.77 and A.S. N 696131 dated 11/05/79 /. A disadvantage of the known scaffolds is that only one working floor is fixed in height.

 Close in technical essence and the achieved result to the proposed ones are panel-telescopic scaffolds containing a frame with a deck and tubular telescopic support racks with a system of clamps and locking devices / a.s. N 966195 from 06/15/82, prototype /. The disadvantage of these scaffolds is that only one working floor is fixed in height, both for placing materials, and for organizing the necessary amenities for masons at the workplace, near the wall being built.

 The technical result is the expansion of the range of amenities is achieved by the fact that the well-known stepped telescopic scaffolds containing a frame with a deck and tubular telescopic support racks with a system of clamps and locking devices are equipped with an additional working deck, located below the existing ones, assembled from shields connected by connections between the stops, in places docking and bearing on consoles fixed with pins in the nozzles, rigidly fixed down to the frame and run with clamps, clamps, and the consoles are endowed with guillas they are equipped with the possibility of telescopically growing in sleeves / undergrowths / removable supports with an additional working floor assembled from shields connected by ties between the stops and placed above the existing ones, while the scaffolds are equipped with an auxiliary floor, hemmed down from the frame and the run and endowed with additional holes placed in the middle of the extendable pipes of the support posts.

 Equipping step telescopic scaffolds with an additional working flooring made it possible to functionally and physically determine its demarcation as the flooring of the workplace of bricklayers-installers, as a specially designated free passage for workers along the brick wall of the building and structure being constructed, without any need to load this flooring with brick and other materials.

Placing an additional working floor below the existing ones allowed technologically
to obtain two more optimal systems of tiers of brickwork, always raised significantly higher than the additional working flooring;
significantly reduce the height of manual lifting of bricks, mortar;
have a constantly higher wall barrier, reducing the risk of falling and accidents.

Assembling an additional working flooring from shields connected by connections between the stops, in the places of docking and bearing on the consoles, allowed:
to carry out manually inventory installation, rearrangement, dismantling, transportation and storage for storage in niches between cargo and auxiliary decks;
get sufficient rigidity and reliability of the additional working flooring.

The installation of consoles fixed with pins in the nozzles, rigidly fixed at the bottom of the frame and run with clamps, allowed
resilience the process of installing, rearranging and dismantling consoles;
to obtain sufficient reliability and rigidity of fastening the entire structure of the additional working flooring.

Giving consoles stops and sleeves and fixing pins in the lower and upper positions allowed
reduce the possibility of shifting the shields of the additional working flooring;
manually convenient and easy to install, reinstall and dismantle removable supports / undergrowths /;
eliminate the possibility of significant displacement and rotation of the consoles.

Providing consoles with the ability to grow in sleeves with removable supports with shields between the additional working floor laid between the stops, i.e. undergrowths placed above existing ones allowed
technologically erect the walls of each floor up to 3.5 m high without additional means of conditioning and costs in a more optimal, convenient system of tiers of brickwork;
get the opportunity to use the same shields of additional flooring, located both below and above existing ones.

The installation of telescopically removable supports / undergrowths / in the sleeves of the consoles fixed with pins in the upper position
to simplify the installation and dismantling of removable supports;
ensure sufficient structural stability.

The restriction of the shields between the stops and the connection of their ties both on the consoles and on the removable supports allowed
reduce the possibility of shifting and lifting boards at the joints;
to obtain sufficient rigidity and reliability of the additional working flooring / undergrowths / placed both above and below existing ones.

The equipment of the scaffolds with auxiliary flooring, hemmed down the frame and the run, allowed
Strengthen the stiffness of the nozzles;
increase the reliability of the entire structure of the additional working flooring;
to form niches between the cargo flooring and the auxiliary flooring for storing and storing all the elements of the additional working flooring: shields, consoles and removable supports for the period of transportation and conservation of the scaffolds.

 Thus, as can be seen from the above, the newly introduced structural features are essential, since they are the ones that ensure the achievement of the technical result, expanding the range of amenities. In the course of the search, the author did not find other technical solutions with such signs.

 In FIG. 1 shows stepped telescopic scaffolds in the first working position, frontal projection; in FIG. 2 the same, in the second additional working position, side view; in FIG. 3 the same in the third working position; in FIG. 4 the same, in the fourth additional working position; in FIG. 5 the same in the fifth working position; in FIG. 6 the same, in the sixth combined working position; in FIG. 7 the same, in the seventh additional working position with undergrowths; in FIG. 8 the same in the eighth transport position; in FIG. 9 the same, details of consoles; in FIG. 10 the same, details of removable supports / undergrowth /.

 Stepped telescopic scaffolds consist of a frame 1 with run 2, flooring 3 and support racks 4 with a system of latches 5 and 6 and locking devices 7 and 8 / Fig. 1-8 /. They are additionally equipped with a working floor 9, located below the existing one, assembled from shields 10, connected by ties 11 between the stops 12 and 13 on the consoles 14, fixed with pins 15 in the nozzles 16, fixed down to the frame 1 and run 2 with clamps 17 and 18 / Fig. . 1-6 /, and the console 14, fixed by pins 15 in the upper position, are equipped with the possibility of telescopically growing in the sleeves 19 and 20 with removable supports 21 / undergrowths / and assembled shields 10, connected by connections 11 between the stops 22 and 23, of the additional working floor 9, posted above existing / FIG. 7 and 9, and 10 /.

 With all this, the scaffolds are equipped with auxiliary flooring 24, hemmed down to the frame 1 and run 2, and are provided with additional holes 25 and 26 located in the middle of the extended tubes 27 and 28 of the support posts 4 / Fig. 2 and 4, and 9 /.

 The first, third and fifth working position of the scaffolding / Fig. 1 and 3, and 5 / obtained by equipping them with additional working flooring 9, located below the existing ones.

 The second and fourth additional working position of the scaffolding / Fig. 2 and 4 / obtained by equipping them with additional working flooring 9, located below the existing ones and by providing them with additional holes 25 and 26, located in the middle of the extendable pipes 27 and 28 of the support posts 4.

The sixth combined operating position of the decks 3 and 9, made by turning the consoles 14 in the nozzles 16 by 180 ^° and fixing them with pins 15 in the upper position, with the rearrangement of the shields 10 and the connections 11 between the stops 12 and 13.

 Seventh additional operating position / Fig. 7 / obtained by providing them with the ability to grow in sleeves 19 and 20 with removable supports 21 / undergrowths / and assembled shields 10 connected by links 11 between the stops 22 and 23 of the additional working floor 9, located above the existing ones.

 Step telescopic scaffolds work as follows: at first they will be re-opened from the transport position / Fig. 8 / in the first working position / Fig. one/. To do this, you must manually remove from the niches located between the decks 3 and 24, the consoles 14 and shields 10 stored there and equip the scaffolds with an additional working floor 9, located below the existing ones, assembled from shields 10, connected by ties 11 between the stops 12 and 13 at the joints and bearing on the consoles 14, fixed with pins 15 in the nozzles 16, rigidly fixed down to the frame 1 and the run 2 with clamps 17 and 18.

 After this, the scaffolds are ready to work in the first working position / Fig. one/.

 With the help of a lifting mechanism, a sling and mounting loops / not shown / step telescopic scaffolds equipped with an additional working floor 9, raise / Fig. 1 /, open the locking device 7 at each support rack 4, from which they are pulled out by the forces of the dead weight of the pipe 27, pass the clips 5 through the additional holes 25 located in the middle of the pipes 27, and the scaffold is lowered by the force of the dead weight of the decks 3 and 9 , and 24 and the weight of the standard load before resting on the latches 5. The scaffolds are installed in the second additional working position of the decks 3 and 9 / Fig. 2 /.

 Then scaffolds are lifted with the help of a lifting mechanism, a sling and mounting loops / not shown / and, under the influence of their own weight, the tubes 27 are extended, the clips 5 are rearranged in the upstream holes. After this, the scaffold is lowered into the third working position of the decks 3 and 9 / Fig. 3 /.

 Next, the scaffold is lifted using a lifting mechanism, a sling and mounting loops / not shown /, open the locking device 8 at each support rack 4, from which they are pulled out under the influence of the dead weight of the pipe 28, the clips 6 are passed into additional holes 26 located in the middle of the pipes , 28, and the scaffold is lowered under the force of its own weight of the decks 3 and 9 and the weight of the standard load until it rests on the latches 6. After this, the scaffolds are installed in the fourth additional working position of the decks 3 and 9 / Fig. 4/.

 Then scaffolds are lifted using a lifting mechanism, a sling and mounting loops / not shown / and, under the influence of their own weight, the pipes 20 are pulled out, the retainers 6 are rearranged into the upper existing openings. After this, the scaffold is lowered into the fifth working position of the decks 3 and 9 / Fig. 5/.

Then manually remove the connection 11, the shields 10 between the stops 12 and 13 of the additional working deck 9, store them temporarily on the cargo deck 3, remove the pins 15, turn the console 14 by 180 ^o C in the nozzles 16 and again fix the console 14 with the pins 15 in the upper position , collect the shields 10 between the stops 12 and 13 of the additional working floor 9. After this, the scaffolds are ready for work in the sixth combined working position of the flooring 8 and 9 / Fig. 6 /.

 Then the connections 11 and shields 10 between the stops 12 and 13 are removed, temporarily stacked on the cargo deck 3, the removable supports 21 / undergrowth / are removed from the niches between the decks 3 and 24 and the consoles 14 are expanded in the sleeves 19 and 20 with the removable supports 21 and the shields reassembled 10, connected by connections 11 between the stops 22 and 23 of the additional working flooring 9, placed above the existing ones. After this, the scaffolds are ready to work in the seventh additional operating position of the flooring 9 / Fig. 7 / with undergrowths.

 For transportation of scaffolds or temporary preservation for storage, they are brought into the eighth transport position / Fig. 8/.

 With the help of a lifting mechanism, a sling and mounting loops / not shown / raise the scaffolds, remove the clips 5 and 6, lower the scaffolds by the force of their own weight of the decks 3 and 9, and 24 and the pipes 27 and 28 are folded into the supporting racks 4 until the locking system works completely 7 and 8.

 Then manually remove the connection 11, the shields 10 between the stops 22 and 23, the removable supports 21, remove the pins 15, consoles 14 from the nozzles 16 and all this is stored for storage in niches equipped between the decks 3 and 24. After this, the scaffold takes the eighth, transport position / FIG. 8 10 /.

 Stepped telescopic scaffolds can be installed on top of each other in 2-3 tiers with temporary fastening to the supporting structures of buildings and structures, and with a standard load of the cargo flooring only the upper tier.

 Stepped telescopic scaffolds can be manufactured qualitatively both in the factory and in the conditions of workshops of OGM SU, SMU, PMK, etc. only on technical documentation developed with the indispensable participation of the author. Production of the first prototype and bringing it to working condition, it is necessary to produce also with the participation of the author.

Technical and economic indicators of stepped telescopic scaffolds favorably with the prototype and allow
to differentiate functionally and physically one working platform flooring into two working flooring:
on a cargo work deck for placing bricks, mortar, tools, etc. next to the brick wall being built,
on a working floor for placing masons, for convenient and safe work directly near the brick wall being built and a free working passage along this wall;
to get two more optimal technological systems of masonry tiers, where almost always the masonry of each tier is much higher than the additional working floor, therefore, the height of manual lifting of the brick, mortar is significantly reduced, since the cargo floor is with brick, the mortar is higher on almost every tier, and also almost on the same horizontal line:
four-stage system of tiers / Fig. 1, 3, 5 and 7 /, for example
h floors: 4 = h tiers,
seven-step system of tiers / Fig. 1-7 /
h floors: 7 = h tiers;
to get more convenient, safe and less labor-intensive working conditions;
to erect brick walls of each floor up to 365 m high without additional means of conditioning;
make wider use of the possibility of combinations of differently high positions of the support posts.

Claims (3)

 1. Step telescopic scaffolds containing a frame with a deck, a run and tubular telescopic support racks with a system of latches and locking devices, characterized in that they are equipped with nozzles rigidly attached to the bottom of the frame and run through clamps, clamps and consoles for additional working flooring , which are made with sleeves, and in places of docking with the frame are fixed with pins in the nozzles, and the additional working flooring is assembled from interconnected and placed between the stops shields.  2. Scaffolding according to claim 1, characterized in that they are equipped with removable supports for additional working flooring with the possibility of their installation in sleeves.  3. Scaffolding according to claim 1, characterized in that they are equipped with auxiliary flooring attached to the bottom of the frame and the girder, and the retractable pipes of the support posts are made with holes located in their middle.

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