RU2780772C2 - Plug connection for frame elements of scaffolding - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to locking bracket (10) for connecting part (16) made with the possibility of insertion between two parts for their connection. To fix a plug connection at ends of connecting part (16), insertion of a pin is provided both through a hole of the part and through a hole of the connecting part. Locking bracket (10) has a U-shaped profile, a distance between arms of which corresponds to a distance between two holes in connecting part (16). In addition, locking bracket (10) contains folding pin (14) pivotally connected at one end of locking bracket (10).

EFFECT: connection of frame elements of scaffolding.

3 cl, 6 dwg

Description

The invention relates to a plug-in connection for frame elements of stackable scaffolding.

Such individual scaffold frame elements are used in particular in order to be able to construct the required supporting structure from several parts in the support structure for the slab formwork. To do this, it must be possible to reliably and safely build up frame elements. To do this, they contain vertical posts made in the form of a hollow profile with connecting struts fixed to them. The connection of frame elements can be carried out by means of a connecting sleeve. In this case, the connecting sleeves serving as connecting parts are inserted into the vertical post of the support frame and are fixed by means of a locking pin with a safety cotter pin so that part of the connecting sleeve still protrudes from the vertical post so that another vertical post can be installed on it, which is attached also with safety pin and safety cotter pin. Therefore, the individual connector sleeves require two locking pins, driven through coaxial holes in the connector sleeve and the upright, and then secured with appropriate safety pins.

For fixing, contactors are also used, in this case the safety cotter pin disappears. The contactor has an elongated pin which is passed through holes in the connecting sleeve and the upright, wherein a portion is provided which abuts and surrounds the round outer peripheral side of the upright and which either holds the contactor in place due to its weight or clamps onto said outer periphery . In the case of a single connection sleeve, two contactors are also required here.

The object of the invention is to provide an easier-to-handle plug connection for scaffold frame elements or scaffold frame.

The locking bracket of the present invention is disclosed in paragraph 1 of the claims. It provides for a new type of connecting bracket, in particular for the above scaffolding elements. Preferred embodiments of said plug connection follow from the respective dependent claims.

The invention is based on a retaining clip in the form of a U-shaped profile, in which the distance between the arms corresponds to the distance between two holes in the connecting piece. In addition, a folding pin is hinged at one end of the locking bracket.

Due to this, instead of a maximum of four elements in accordance with the prior art required to connect two elements of the scaffold frame, only one single element is still required for the connecting part, namely the locking bracket according to the invention. It is simultaneously inserted into all holes, with which the connecting piece must be fixed on both elements of the scaffold frame that are connected to each other.

As a result, due to the improved ergonomics of the locking pin system, the present invention allows an increased assembly speed between scaffolding parts to be achieved. The locking bracket is securely self-locking and requires only a few manipulations to install. Thus, an economical version of the plug-in connection system is proposed. The length of the folding pin is chosen to be at least such that it cannot tip over in the pipe and thus become blocked.

The plug-in connection according to the invention for connecting scaffolding elements is formed as such by means of a connecting adapter according to claim 3. It contains

- a connecting piece made with the possibility of insertion between the elements of the scaffolding, and

- the above-described locking bracket.

The connecting part of the connecting adapter preferably has a thrust ring located in the center of the periphery. This determines the insertion depth of the connecting piece on the first tube of the scaffold frame. After the abutment is formed, the second half of the connecting part remains free for fitting the second frame element.

Typically, the connecting piece is inserted into the hollow end of the upright. However, the present invention also functions in a configuration in which the connecting piece is pushed along the outer periphery onto the pipe end of the scaffold frame, respectively, at both ends. Of course, an intermediate solution is also workable, in which one end of the connecting piece is inserted into the end of the pipe, and the other end is pushed onto the pipe end of the scaffold frame.

Further details of the invention are described below based on an exemplary embodiment and in conjunction with the accompanying drawings.

The drawings show:

- fig. 1 locking bracket according to the invention,

- fig. 2 installation of the locking bracket of FIG. 1 on scaffolding frame,

- fig. 3 stage of installation of the locking bracket of FIG. 1 following the step of FIG. 2,

- fig. 4, the installation step of the locking clip of FIG. 1 following the step of FIG. 3,

- fig. 5 parts of the plug connection in an unassembled state, and

- fig. 6 is an enlarged view of a retaining clip according to the invention with a connecting piece.

In FIG. 1 shows a retaining clip 10 according to the invention, made of a U-profile, at one end of which a hinged pin 14 is pivotally mounted. vertical position. As shown also at the bottom of FIG. 1, whereby, after turning the folding pin 14 across that arm of the bracket 10 on which it is hinged, a stop flange is also formed. This abutment, projecting upwards in the drawing, forms a safety stop which, in the mounted state of the retaining clip 10, prevents parts from being pulled out or unintentionally falling out.

The length of the folding pin is chosen to be at least such that it cannot tip over in the pipe and thus become blocked.

As shown in the drawing, the folding pin 14 also has a length due to which, in the locked state, it extends from one shoulder of the U-profile to the other.

The arm on which the hinged pin 14 is hinged also has a slightly longer length relative to the other arm so that in the locked state the hinged pin 14 can swing downwards by approximately 90 degrees. This degree of deflection is facilitated by the tapered end of the hinged pin 14, the tapered end of which can reach a stop on the tapered end of the free arm of the U-profile. In addition, by means of a conical shape, on the one hand, the shoulder of the U-shaped profile, and on the other hand, the end of the folding pin 14, the insertion of the locking bracket 10 into these holes is facilitated.

In FIG. 2 shows the installation of the plug connection on the frame element 20 of the scaffolding. Between the ends of the vertical posts of the frame element 20, a connecting piece 16 is inserted, having a thrust ring located in the center of the periphery (see detailed image A). A locking clip 10 is inserted through the holes at the ends of the corresponding frame element, namely in such a way that the folding pin 14 is directed parallel to the shoulder of the U-profile on which it is fixed. In FIG. 3 this arrangement is shown as an inserted retaining clip 10.

Then, under the influence of its weight, the folding pin 14 is automatically deflected downwards into the position shown in FIG. 4 vertical position. As a consequence, the upper end of the hinged pin 14 forms a stop flange relative to the side surface of the frame element 20, so that the locking clip 10 in this position shown can no longer be removed from the holes and therefore from the connection position.

In FIG. 5 shows the interaction between the holes of the connecting part 16 and the holes of the frame element 20. The connecting part has a slightly smaller outer diameter so that it can be inserted into the open end of the frame element 20. In this case, all the holes, in the direction of insertion of the locking pin, lie on the same line, coaxial. The centrally located thrust ring of the connecting piece 16 makes it possible to insert the connecting piece at a certain distance into the tube of the frame element 20. The above applies equally to the frame element 20, which is pushed onto the connecting piece 16.

Fig. 6 illustrates the interaction of the retaining clip 10 and the fitting 16. This corresponds to the method steps performed above in accordance with FIG. 2-4.

List of reference designations:

10 retaining clip

12 rim

14 flip pin

16 connecting piece

18 hole connecting piece

20 scaffold frame element

Claims (7)

1. A retaining clip (10) for a connecting part (16) inserted between two parts to connect them, and to fix the plug connection at the ends of the connecting part (16), a pin is inserted both through the hole of the specified part and through the hole of the connecting part, characterized in that the locking bracket (10) has a U-shaped profile, the distance between the arms of which corresponds to the distance between two holes in the connecting part (16), and at one end of the locking bracket (10) a folding pin (14) is pivotally mounted. 2. Connecting adapter for connecting frame elements (20) of scaffolding, containing - a connecting piece (16), made with the possibility of insertion between the frame elements (20), and - locking clip (10) on. one. 3. Connecting adapter according to item 2, characterized in that the connecting part (16) has a thrust ring located in the center of the periphery.

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