UA9555U - Movable falsework-tower - Google Patents

Abstract

The movable falsework-tower has arranged in vertical positions sections made of stands arranged of two vertical pipes with transverse elements welded to those, diagonal trusses and horizontal frames, the upper one of those is equipped with deck-platform with hatch and flap lid and surrounded with transverse and long barriers, railing and intermediate hand-rail, and the other one is an element of rigidity of the structure; the ends of the diagonal trusses, railings, intermediate hand-rail and theends of the frames are equipped with connecting fastenings; the stands are made with possibility of installation in vertical one over another and on the support beams equipped with movable supports. The connecting fastenings are arranged as a -like cramp welded to the ends of the trusses, railings, intermediate hand rails and the ends of the frames. The stopper is arranged as a flat part with handle and tail element, and at turn by means of handle with respect to the axis it fixes the cramp with respect to the transverse element due to respective curvature of the inner working edge of the tail element. The spring prevents the stopper release from working position. Connection of the stands one to another and to bearing beams in vertical is equipped with fixation cramp. The bearing beams are arranged as telescopic ones. At the ends of the telescopic beams jacks are fixed, with stopping lock-nuts. The bearing beams are connected to each other by horizontal long and diagonal links.

Description

Description of the invention

The useful model refers to construction and can be used as scaffolding, which stands separately from buildings, for repair and other types of construction and installation work on facades and inside buildings.

A well-known construction and assembly tower, which includes scaffolding and a support trolley, made in the form of a two-tier square frame with vertical openings and with support wheels located along each side of the frame, which can be moved vertically with the help of jacks along the guides fixed on the frame , extended supports installed at the corners of the frame, work platforms located vertically. Each 70 wheel has a diameter of 0.8-1.2 m and spokes. | See a.s. USSR Mo1793030, Cl. E0401/24,1/34, publ. 07.02.93, Bul. Mob.

The disadvantage of this technical solution is the bulky design of the support cart, the difficulty of assembly and disassembly, including the processes of transforming the cart into a stationary support with horizontal stacking of wheels and vice versa.

Known multi-tiered platforms, which include tubular sections of risers and transverse elements, 72 working platforms, fences, braces, which have hooks at the ends in the form of a hook with a notch for the transverse element of the platforms, with latches in the form of a spring-loaded finger installed at an angle to the axis of the brace in a cylindrical nozzle with a finger movement limiter | See a.s. USSR Mo1761910, Cl. E0401/06, publ. 15.09.92., Bul. Mo34). When fixing each brace, the grips are installed on the transverse elements of the sections, and by pressing on the brace from top to bottom, their fixation is carried out.

The disadvantage of this technical solution is the low reliability of bracing fasteners, because due to inevitable errors in the manufacture of parts and during the installation of scaffolding, the fastener rod can be installed with a skew and under the action of the load can deform itself and deform the risers. After several cycles of assembly and disassembly of the scaffolding, the connection becomes unusable. The disadvantage is also the need to use a tool when dismantling the scaffolding and the complexity of the design of the connecting elements due to the large number of component parts. -at

The closest to the claimed scaffolding-tower, in terms of technical essence, are mobile scaffolds in accordance with (patent KO Mo2143534, Cl. E0407/30, date of publication of the claim: 12/27/1999).

Known scaffolding, containing side frame elements, including vertical risers and horizontal cross bars, welded to the risers with a corresponding frequent step, two horizontal frames, the upper one of which has a floor and a hatch, which is closed by a hinged cover, limited by transverse and longitudinal sides, fenced railings, which consist of upper and intermediate handrails and connecting links, and the lower one does not have a fence and serves to increase the rigidity of the structure, longitudinal struts and a system of braces. Side frame elements are installed on supporting beams, which are connected to movable supports. Clamping joints are made in the end zones of pre-made from shaped bars in the form of a rectangular hollow profile of braces, struts and frames of decks-platforms, which have a notch covering the transverse crossbars, with the help of which the shaped bars are put on the corresponding transverse crossbars, and clamping parts , which in the closed position cover the slot of the corresponding notch and clamp the transverse bolt in this notch. The clamping part is made in the form of a channel profile "parallel to the shaped bar, and is provided with an elongated hole through which the bolt of the fixing device passes, which is screwed into the shaped bar using a nut with a handle. 70 Although the clamping connection in known scaffolds provides the possibility of installation without the use of tools, the disadvantage is the complexity of the clamping connection, including, due to the presence of a clamping part

Due to the relatively large number of elements, the fastening of the clamping part to the shaped bar is low.

The clamping part is attached to the lower shelf of the rectangular shaped bar only due to a thin threaded connection. At the same time, in the process of mounting and dismounting the scaffolding, additional time is needed to unscrew and tighten the nuts that fix the frictional locking of the transverse element in the clamping part. o The task, the solution of which is aimed at the useful model, is the creation of a convenient and reliable construction of mobile scaffolding-towers due to the improvement of the fastening elements of diagonal braces, fences and deck frames to the crossbars of the risers, in order to ensure quick assembly and disassembly without the use of the i-th tool , as well as by increasing the stiffness and stability of the structure as a whole, including in the 4-20 part of movable supports, load-bearing beams and connections between sections of risers.

The task is solved by the fact that the scaffolding-tower is mobile, which includes vertically located sections of risers made of two vertical pipes with horizontal crossbars welded to them at the appropriate step, diagonal braces and horizontal frames, the upper of which is equipped with a deck-platform with a hatch and a hinged cover and fenced with transverse and longitudinal sides, railings

So" and intermediate handrails, and the other - serves as an element of rigidity of the structure, the ends of diagonal braces, railings, intermediate handrails and the ends of the frames are equipped with connecting locks for installation on the crossbars, the risers are made with the possibility of vertical installation on each other and on the supporting beams, equipped with movable supports, according to the useful model, the connecting locks are made in the form of a U-shaped bracket, welded to the ends of braces, railings, intermediate handrails and ends of frames, in parallel vertical machines of which recesses are made under 60 of the crossbar and holes in which the an axis with a retainer and a spring installed on it between the vertical walls, the retainer is made in the form of a flat part with a handle and a shank and when turned with the help of a handle around the axis, it wedges the bracket relative to the crossbar due to the corresponding curvature of the inner working edge of the shank described by two radii, while the spring rests with its middle part, which has a U-shaped configuration, on the handle of the lock, and the bent ends - on the bracket, preventing the release of the lock from the working position, the connection of the risers with each other and with the supporting beams vertically is equipped with a locking bracket, the supporting beams are made telescopic to ensure the possibility of expanding the supporting surface of the scaffolding-tower, when therefore, each of them contains a central and two sliding beams connected to each other with the possibility of fixing them in given positions, at the ends of the sliding beams fixed jacks with locking Locknuts equipped with handles, and at the ends of the central beam rigidly fixed vertical pipes in which movable supports mounted with the possibility of moving the scaffolding tower along the support surface and adjusting its installation vertically, the supporting beams are connected to each other by horizontal longitudinal and diagonal ties. The task is also solved by the fact that: - the upper ends of the risers and the central beams are equipped with vertical guide pins, on which 7/0 The lower ends of the risers are installed, while the formed connections are fixed with the help of a fixing bracket, which is inserted into the through hole that is formed at the coincidence of the holes made in the guide pins and in the lower ends of the riser pipes, the guide pins of the central beams are rigidly fixed in the segments of the vertical pipes welded to the upper sides of the central beams; - the fixing bracket is made of a rod, one end of which is inserted into the through hole formed when /5 the risers are installed on each other and on the supporting beams, and the opposite end, bent at an angle of 902 to the plane of the bracket, prevents the bracket from falling out of the hole; - each movable support includes a wheel equipped with a brake, mounted for rotation in the horizontal plane by 3602 about an axis perpendicular to the axis of the horizontally located support beam, and connected to the heel of a support screw screwed into a support nut equipped with handles and inserted in

A suitable vertical pipe rigidly fixed to the end of the central beam, while the vertical pipe rests on the support nut; - the central and retractable beams are made of rectangular tubes, guide brackets are welded to the upper and lower sides of each central beam, covering the corresponding retractable beams, and horizontal shelves, while the retractable beams move in opposite directions along the sides of the corresponding central beam in the guide brackets and between the horizontal shelves, in the horizontal shelves and on the inner ends of the retractable beams, through holes are made, into which pins are inserted, which fix the position of the retractable beams horizontally relative to the central beam; - horizontal longitudinal and diagonal ties connecting the supporting beams are attached to vertical pipes rigidly fixed on the ends of the central beams and to segments of vertical pipes welded to the upper sides of the central beams.

One of the significant features of the proposed technical solution, in comparison with the known one, is the design of the connecting lock, made in the form of a U-shaped bracket with a recess under the crossbar and with a retainer and a spring installed on the axis between the vertical walls of the bracket. The execution of the fixator in the form of a flat part with a handle and a shank, which has the appropriate curvature of the inner working edge, provides the possibility of connecting the elements of the scaffolding-tower structure and disconnecting them without the use of a tool, with one movement of the handle. During the connection, the clamp and the retainer are securely wedged relative to the tubular transverse element. At the same time, the spring prevents the release of the latch from the working position and protects the connection from "accidental, unintentional impacts." -

Equipping the ends of diagonal braces, fences, ends of frames and, if necessary, other mounting 470 elements of scaffolding with connecting locks of the proposed design allows to significantly increase the manufacturability of serial production of scaffolding, because many connecting elements of this purpose are needed. "» The advantage over known technical solutions is also: - increasing the rigidity of the scaffold-tower structure due to the installation of an intermediate frame in the middle part of the scaffold-tower, longitudinal and diagonal connections connecting the supporting beams, and fixing the connections (Se ) between the risers and between the risers and the supporting beams vertically; - increasing the stability of the scaffolding-tower due to the implementation of telescopic supporting beams with retractable beams equipped with jacks, as a result of which the support surface of the scaffolding-tower increases. c The design of mobile supports, which includes wheels and supporting screws connected to them, provides the possibility of installation | movement of the scaffold-tower on an uneven surface. sl The technical result is the creation of a convenient and reliable design of the mobile scaffold-tower, which ensures quick assembly and disassembly, preferably without the use of tools.

A comparative analysis of the proposed technical solution with known technical solutions allows us to conclude that the mobile scaffolding tower differs from the known ones by the presence of new

SU 55 constructive signs. In the available sources of information, you will not find technical solutions characterized by the set of features of the proposed useful model.

The essence of the useful model is explained by the drawings, where Fig. 1 shows the general view of the scaffolding-tower; in Fig. 2 - connection of risers vertically with a fixing bracket in section; 60 in Fig. 3 - fixing bracket, top view; in Fig. 4 - a front view of the connection of a diagonal brace with a crossbar using a connecting lock; in Fig. 5, 6 - a side and top view of the connection in Fig. 4; in Fig. 7 - the latch of the connecting lock; 65 in Fig. 8 - frontal view of the supporting beam; Fig. 9 is a top view of the supporting beam;

in Fig. 10 - a guide bracket, section along A-A in Fig. 8; in Fig. 11 - horizontal shelves with a fixing pin, cut along B-B in Fig. 8.

The mobile scaffolding-tower contains sections of risers 1, consisting of two vertical pipes 2 with welded horizontal crossbars 3, a frame 4, on which a work platform with a deck 5 and hatch 6, transverse 7 and longitudinal 8 sides, railings 9 and intermediate handrails is installed 10, an intermediate frame 11, diagonal braces 12, two supporting beams 13, mounted on movable supports 14, longitudinal 15 and diagonal 16 horizontal connections connecting the supporting beams 13. Each supporting beam 13 contains a central beam 17 and retractable beams 18 and 19, made of rectangular pipes, as shown in Fig. 8-11. At the outer ends of the retractable 70 beams 18, 19 are fixed jacks 20 with locking locknuts 21 equipped with handles 22. The central beam 17 is united with each retractable beam 18 and 19 by means of two guide brackets 23, which cover them and are welded to the upper and lower side of the central beam 17. Horizontal shelves are symmetrically welded to the upper and lower sides of the central beam 17 in the places of fixation of the initial position of the retractable beams 18,19, respectively. 24, 25 and 26, 27. Horizontal shelves are symmetrically welded, respectively, 28, 29 and 30, 31, to the upper and /5 Lower sides of the central beam 17 in the places of fixation of the extended position of the retractable beams 18, 19. In the shelves 24-31 and in in the corresponding places of the tubes of the retractable beams 18, 19, as shown in Fig. 11, through vertical holes 32 are made, into which the fixing pins 33 are inserted. On the central beams 17, sections of vertical pipes 34 are installed and welded, in which the guide pins Z5 are rigidly fixed , on which risers 1 of the lower tier of scaffolding are installed. The same guide pins 35 are fixed in the upper ends of the pipes of the risers 1. Through holes 36 are made in the pins 35 and the lower ends of the pipes 2 of the risers 1. When installing the risers 1 on top of each other and on the pin 35 of the central beams 17, the holes 36 coincide. A locking bracket 38 is inserted into the formed through hole 37 of the connection of the risers 1 between themselves and with the central beams 17. Each bracket 38 is made of a rod, one end 39 of which is inserted into the through hole 37, and the other end 40, bent at an angle of 902, prevents falling out of the bracket 38 from the hole 37. On the ends of the central beams 17, pipes 41 are rigidly fixed, in particular by welding, into which movable supports 14 are installed. Each movable support 14 contains a wheel 42, equipped with a brake 43 and installed in a bracket 44, which connects through intermediate c) elements (not shown in the drawings) with the heel 45 of the support screw 46. The wheels 42 are mounted with the possibility of rotation in the horizontal plane at 3602 around an axis perpendicular to the axis of the horizontally located supporting beam 13. The support screw 46 is screwed into the support nut 47 , equipped with handles 48 and inserted into the pipe 41, while the pipe 41 rests at the lower end on the support nut 47. The wheels 42 are mounted with support screws 46 to ensure the possibility of precise installation of the scaffolding-tower in the vertical plane. To the ends of the diagonal braces 12, railings 9, intermediate handrails 10 and to the ends of the frames 4 and 11, connecting locks 49, shown in Fig. 4-6, containing a U-shaped bracket 50, a latch 51 and a spring 52, are welded. the parallel vertical walls 53 of the bracket 50 have a recess 54, which is used to install the connecting lock 49 on the crossbar 3. The latch b 51 and the spring 52 are installed on the axis 55, which has a flange 56 and a hole for the cotter pin 57. The axis 55 is installed in the holes (in the drawings not shown), staples 50 are made in the vertical walls 53. The fastener 51 is made in the form of a flat part that has a handle 58 and a shank 59, the inner working edge 60 of which has a curvature described by two radii КИ and К2. The latch 51 has a hole 61, the diameter of which corresponds to the diameter of the axis 55. The spring C 52 has a middle part 62 of a U-shaped configuration, with which it rests on the upper edge of the handle 58, and with the bent ends 63 - on the bracket 50. Longitudinal 15 and diagonal 16 horizontal links The joints between the supporting beams c 13 are installed, respectively, on the vertical pipes 41 and 34 of the central beams 17 with the help of fastening elements 64 of the clamp type. The details of the design of the fastening elements 64 and their implementation are not considered as "" the subject of this utility model.

To connect diagonal braces 12 with a horizontal crossbar From riser 1 using

The handle 58 of the locking device 51 of the connecting lock 49 is turned up, while compressing the spring 52, and the bracket (Se) 50 is installed with the tower 54 on the crossbar 3. Turning the handle 58 down, the crossbar C is wedged between the notch 54 of the bracket 50 and the inner working edge 60 of the shank 59 of the latch 51. The spring 52 at the same time presses

Mn the handle 58, preventing the release of the latch 51 from the working position, in addition to the action of the frictional force between the working edge 60 of the latch 51 and the contact surface of the crossbar 3. To disconnect the diagonal brace 12 from the crossbar C, the handle 58 of the latch 51 is turned upwards, squeezing at to this spring 52, and remove the sl diagonal brace 12 from the crossbar 3. Similarly, the frame 4 of the working platform, the intermediate frame 11, the railing 9 and the intermediate handrails 10 of the working platform are connected to the crossbars with the help of the connecting lock 49. The frame 4 of the working platform, complete with the decking 5, the hatch 6 and the side fences 7, 8, can be installed at the required height with a step equal to the step of the horizontal crossbars 3. Assembly of the scaffolding-tower using

СХ 55 of the connecting lock 49 does not require the use of a tool, increases the rigidity of the structure and reduces the complexity of installation work. Crossbars C are simultaneously used as stairs for climbing to the work platform.

The assembly of the scaffolding-towers begins with the installation of the supporting beams 13 on the movable supports 14. At the same time, the brakes 43 of the wheels 42 are turned on. The support screws 46 are inserted into the vertical pipes 41 so that the pipes 41 rest on the support nuts 47. The longitudinal ones 15 are installed on the pipes 41, and on the segments of vertical pipes 34 - diagonal 16 horizontal ties with the help of fastening elements 64. With the help of handles 48, support nuts 47 regulate the installation of supporting beams 13 vertically. If necessary, extend the beams 18, 19 and adjust their installation on the support surface with the help of jacks 20, fixing the desired state with the help of lock nuts 21.

To extend the beams 18, 19, it is necessary to remove the locking pins 33 from the shelves 24, 25 and 26, 27, extend the beams 18, 65 19 and fix their extended position with the help of the locking pins 33 in the shelves 28, 29 and 30, 31. Then install the risers. 1 of the lower and subsequent tiers of scaffolding, connecting their crossbars with diagonal braces 12 with the help of connecting locks 49. In the through holes 37, formed when installing risers 1 on top of each other vertically and when installing risers 1 of the lower tier on pin Z5 segments vertical pipes 34 of the central beam 17, fixing brackets 38 are installed.

Frame 4 of the work platform is installed at the height required for work. The intermediate frame 11 is installed, approximately, in the middle part of the expected height of the scaffolding-tower. To move the scaffolding-tower, turn off the brakes 43. Dismantle the scaffolding-tower in the reverse order.

The use of the proposed constructive solutions in a useful model allows to simplify the technology of mass production of assembly elements of the scaffolding structure, to create an economical, reliable and easy-to-use construction of a mobile scaffolding tower.

Claims (6)

The formula of the invention 1. Scaffolding-a mobile tower, containing vertically located sections of risers made of two vertical pipes with horizontal crossbars welded to them at the appropriate step, diagonal braces and horizontal frames, the upper of which is equipped with a deck-platform with a hatch and a hinged cover and is fenced transverse and longitudinal sides, railings and intermediate handrails, and the other serves as an element of rigidity of the structure, the ends of diagonal braces, handrails, intermediate handrails and the ends of the frames are equipped with connecting locks for installation on the crossbars, the risers are made with the possibility of vertical installation one on top of the other and on load-bearing beams equipped with movable supports, which is distinguished by the fact that the connecting locks are made in the form of a U-shaped bracket, welded to the ends of braces, railings, intermediate handrails and ends of frames, in the parallel vertical walls of which recesses for the crossbar and holes are made, in which an axle is fixed with a retainer and a spring installed on it between the vertical walls weight, the fastener is made in the form of a flat part with a handle and a shank and when turned with the help of a handle around the axis, it wedges the bracket relative to the crossbar due to the corresponding curvature of the inner working edge of the shank described by two radii - while the spring rests on its middle part, which has a P- a similar configuration, on the handle of the fixator, and the bent ends - on the bracket, preventing the release of the fixator from the working position, the connection of the risers with each other and with the supporting beams vertically is equipped with a fixing bracket, the supporting beams are made with telescopic ones to ensure the possibility of expanding the supporting surface scaffolding-towers, while each of them contains a central and two extendable beams connected to each other with the possibility of fixing them in given M positions, at the ends of the extendable beams fixed jacks with locking locknuts, equipped with handles, and on the ends of the central beam are rigidly fixed vertical pipes, in which movable supports are installed, are mounted with the possibility of ensuring the movement of the scaffolding tower along the supporting surface and adjusting its vertical installation, the supporting beams are connected to each other by horizontal longitudinal and diagonal ties. 2. Mobile scaffolding-tower according to claim 1, which is characterized by the fact that the upper ends of the risers and the central beams "are equipped with vertical guide pins, on which the lower ends of the risers are mounted, while the formed connections are fixed with the help of a fixing bracket, which is inserted into the through the hole formed when o, 20 coincides with the holes made in the guide pins and in the lower ends of the riser pipes, the guide pins of the central beams are rigidly fixed in the vertical pipe segments welded to the upper sides of the central beams. 3. Mobile scaffolding-tower according to claim 1, which is distinguished by the fact that the fixing bracket is made of a rod, one end of which is installed in a through hole formed when the risers are installed one on top of the other and on the supporting beams, and the opposite end is bent at an angle of 902 to the plane of the staple, prevents the staple from falling out of the hole. co 4. Mobile scaffolding-tower according to claim 1, which is characterized in that each movable support contains a wheel equipped with a brake, mounted with the possibility of rotation in the horizontal plane at 3609 around an axis perpendicular to the axis of a horizontally located supporting beam, and connected with the heel of the support screw, "sl screwed into the support nut, equipped with handles, and inserted into the corresponding vertical pipe, rigidly 5p fixed to the end of the central beam, while the vertical pipe rests on the support nut. sl 5. Mobile scaffolding-tower according to claim 1, which is characterized by the fact that the central and retractable beams are made of rectangular pipes, guide brackets are welded to the upper and lower sides of each central beam, covering the corresponding retractable beams, and horizontal shelves, while the retractable beams move in opposite directions along the sides of the corresponding central beam in the guide brackets and between the horizontal shelves, in (In 55 horizontal shelves and on the inner ends of the retractable beams, through holes are made, into which pins are inserted, fixing the position of the retractable beams horizontally relative to the central beam. 6. Mobile scaffolding-tower according to claim 1, which is characterized by the fact that horizontal longitudinal and diagonal ties connecting the supporting beams are attached to vertical pipes rigidly fixed to the ends of the central beams and to segments of vertical pipes welded to the upper sides of the central beams. 60 b5