CS236805B1 - Scaffold coupling - Google Patents

Abstract

The invention relates to a scaffolding clutch, which allows the connection of two scaffold tubes in any angle. The clutch allows the connection even in position 0 ’, what it is advantageous in duplication or coupling two scaffold tubes. This joint it also makes it easy to use with others structures, such as in the case of pads formwork, etc., and simple, statically advantageous creating scaffold structures. The clutch is two-piece. The part consists of an opera thatch, thrust bolt, with kromoril rests on the pipe, and the pressure screws. An insert can be inserted between a pair of tubes which predetermines the joint angle. The clutch can be used for special i ordinary scaffold structures, atypical connections.

Description

The invention provides a scaffold tube coupling.

In the prior art, rectangular single-purpose couplings are known, the disadvantage of which is that they have little use, variability, especially in the case of non-straight couplings of double pipes, where an extra pipe had to be used, with reduced static load-bearing capacity. Also known are joint couplings which allowed a non-rectangular joint, but this was not secured at the desired angle, which reduced the static load-bearing capacity, the stiffness of the scaffolding structure. Also known are angled couplings which have been dedicated, for only one angle given by their design. In the case of the said couplings, the aforementioned property in combination and in addition with the possibility of simple and variable mounting, the choice of the angle, the choice of a joint or a rigid joint or the accuracy of the angle of the connected pair of tubes cannot be guaranteed.

These drawbacks will be eliminated by a connector consisting of thrust bolts with backrests, two abutment plates facing each other and connected by a pair of tightening bolts with nuts and at their edges and washers, according to the invention, which is characterized in that thrust pads have thrust screws and a notch is formed in their edges, into which the end of the clamping screw provided with the nut is inserted, the notch provided with the notch being bent towards the nut.

The novel effect of the coupling according to the invention is a combination of several effects, such as the large joint of a pair of tubes, the possibility of fluent selection of required angles directly on the site, the choice of a non-joint connection by inserting the liner between the pair of connected tubes, increasing the rigidity of the structure. determines the required angle, a simple choice of the exact angle. Also a new effect is the possibility of a parallel connection of a pair of tubes, which results in a coupling of bent-stressed tubes or a doubling of vertical posts. This coupling or duplication is also advantageous in that the number of couplings per pipe length to be joined can be determined on the basis of the static calculation, since the couplings can be freely fitted one after the other. The clutch insert creates a statically advantageous friction surface; damage to the pipes, creates a gap through which a 60 ° to 120 ° coupling or a hook can be mounted. Higher effect is also easy mounting and assembly of the coupling.

In the accompanying drawings, a coupling according to the invention is shown, wherein in FIG. 1 is a connector mounted on parallel tubes without liner in cross section through the tubes; FIG. 2, the coupling is mounted on rectangular tubes in a side view. Fig. 3 indicates the insert 0 °, but as only one of the alternative rotation angles of the insert.

The coupling for joining the pipes 7 is of two parts, one part of which consists of a support plate 1. It has on one side a hole for screw 2 with nut 3, which is permanently left on the coupling, retracts. The folding of the edges 10 of the longitudinal notch 11 of the thatch 1 prevents the bolt from falling out and the coupling from breaking. In addition, the clutch support plate 1 has a centrally mounted support 5, which is rotatably fastened by a pressure screw 6 on which a nut is secured by spot welding. The support 5 serves to distribute pressure, increase shear resistance and prevent deformation of the scaffold tube 7. The coupling can be used without or with an insert. The liner consists of two longitudinally split tube sections 8 welded together by a weld 9 which determines the rotation angle of the liner. Fig. 2 indicates use at right angle to 90 ° insert. The angle of the liner can be marked in the liner body so as not to be confused with the liners.

The large coupling can be used in the assembly of oblique and parallel tubular scaffolding constructions, in particular inclined constructions in connection with a rectangular construction, in the formation of posts in the formwork of ceilings, in coupling or doubling of parallel scaffold tubes, respectively, increasing the load carrying capacity of the tubes. By making it possible to directly feed an inclined pipe, for example by winding the scaffolding onto the post, it is sometimes unnecessary to use a cross-bar for conventional scaffolding. It enables fast and easy assembly on site with high variability of construction solutions.

Claims (2)

SUBJECT Scaffolding connector of two crossing tubes, consisting of thrust bolts with supports, two backing plates facing each other and connected by a pair of clamping screws with nuts and washers spaced apart by at least the diameter of the scaffold tube, characterized in that the support planks (lj are provided with thrust bolts of the invention (6) and at the edge of the plates (1), a longitudinal notch (11) is formed into which the end of the clamping screw (2) is inserted, provided with a nut (3); ) is bent towards the nut (3j), an insert is inserted between the pair of tubes (7).