DE102021108739A1 - Swivel adapter for a ground anchor - Google Patents

Abstract

The present invention relates to a swivel adapter (1) for attachment to the head end (14) of a ground anchor (10), the swivel adapter (1) comprising the following: - a lower part (20) with a base (22) for detachable arrangement at the head end (14 ), wherein the lower part (20) has a receptacle (26) facing away from the base (22),- an upper part (30) with a mounting plate (31) and with an insert (36) which can be inserted into the receptacle (36) and can be fixed adjustably in the receptacle (26).

Description

technical field

The present invention relates to a swivel adapter for a ground anchor, such a ground anchor and a method for fixing and attaching a swivel adapter to a ground anchor, the ground anchor being designed for insertion into the ground or into the ground.

background

Ground anchors or so-called screw foundations for anchoring in the ground are well known in the prior art. For example, describes the DE 10 2005 045 574 A1 a screw foundation for anchoring to the ground, comprising a cylindrical portion and a conical portion. A helix, which allows the screw foundation to be screwed into the ground, is attached to the conical area and is connected to it by means of a weld seam.

Furthermore, the cylindrical portion is provided at its earth-side end with a tip, which is formed by cutting the cylindrical portion at an angle, so that the penetration of the cylindrical portion into the soil is promoted. Objects to be anchored vertically, such as posts or traffic signs, can be inserted into the cylindrical area, which is designed as a hollow cylinder.

For such ground anchors or screw foundations, it is generally desirable, in particular with regard to the add-on parts to be fastened to them, to anchor them as precisely as possible in a vertical orientation in the ground or in the ground.

In this respect, the object of the present invention is to provide an improved ground anchor and to enable the simplest possible assembly and alignment of add-on parts on such a ground anchor. The aim here is in particular to achieve an alignment which is as precise as possible, for example a vertical or horizontal alignment of add-on or superstructure parts on the ground anchor. The ground anchor should also be characterized by a particularly robust structure and a compact geometry.

This object is achieved with a swivel adapter for fastening to a ground anchor, with a ground anchor and with a method for fixing and fastening a swivel adapter on a ground anchor according to the features of the independent patent claims. Advantageous configurations are the subject matter of dependent patent claims.

In that regard, a swivel adapter for attachment to the head end of a ground anchor is provided. The swivel adapter includes a base with a base for detachable arrangement at the head end of the ground anchor. The lower part has a receptacle facing away from the floor. The swivel adapter also includes an upper part with a mounting plate and with an insert. The insert can be inserted or used in the receptacle of the lower part and can be fixed in the receptacle in an adjustable manner. The mounting plate is used to arrange and fasten add-on parts on the swivel adapter and thus on the floor or ground anchor via the swivel adapter.

The adjustability of the insert in or on the receptacle of the lower part enables the upper part to be precisely aligned with respect to the lower part, with any superstructures or other add-on parts having to be attached to the upper part.

In this case, it is provided in particular that the upper part is pivotably mounted on the lower part. In this respect, the receptacle and the insert can be designed to correspond or complement one another in such a way that the upper part is mounted on the lower part so that it can be pivoted in one or more directions.

The swivel adapter with its lower part can typically be fixed firmly to the head end of the ground anchor. Any deviations in the position of the ground anchor from a predetermined geometric installation position in the ground or underground can be compensated for in a simple manner by the movable and fixable mounting or mounting of the upper part on the lower part. If, for example, the ground anchor is not in the intended vertical orientation after it has been introduced into the ground or underground, a resulting inclination and deviation of its upper part from a vertical can be compensated for as required by arranging the swivel adapter on the upper part.

In this respect, an at least slightly oblique insertion of the ground anchor into the ground can be effectively compensated for by means of the adjustable but mutually fixable arrangement of the upper part on the base part. Thus, the elongate base part can also be introduced, typically turned or screwed, into the ground up to a certain angle obliquely from a vertical or vertical line. The upper part can then be adjusted according to a predetermined orientation on the receptacle of the base part, for example pivoted and fixed in a planned end orientation on the receptacle of the base part.

It is advantageous here that the swivel adapter can be detachably arranged at the head end of a ground anchor. Inaccuracies in the position or alignment of those ground anchors, for which subsequent adjustment or renewed insertion into the ground would actually be necessary, can be subsequently provided with a swivel adapter, which can be arranged and/or fixed in a simple manner at the head end of the respective ground anchor. A renewed, sometimes time-consuming insertion or drilling of the ground anchor into the ground is therefore not necessary.

Nevertheless, an incorrect alignment of the head end of the ground anchor can be compensated or corrected by arranging the swivel adapter at the head end.

The swivel adapter is particularly suitable for ground anchors that are already available on the market. Existing ground anchors can also be retrofitted with the swivel adapter to eliminate any position or alignment errors.

According to a further embodiment, the swivel adapter has a fastening element, by means of which the upper part can be fixed relative to the lower part and by means of which the lower part can be fastened and/or fixed at the head end of the ground anchor.

It is provided here that both the upper part can be fixed relative to the lower part and the lower part can be fastened and/or fixed to the ground anchor by means of a single fastening element.

In terms of assembly technology, such a design proves to be extremely advantageous, since several parts of the swivel adapter or the ground anchor can be fixed to one another and fastened to one another with just a single fastening element. This is also an advantage in terms of assembly technology. Thus, by means of a single assembly step, both the upper part can be fixed to the lower part and the lower part, and therefore the entire swivel adapter, can be fastened to the head end of the ground anchor.

According to a further embodiment, the fastening element has an elongate shaft which penetrates both the upper part and the lower part in the longitudinal direction. Furthermore, the fastening element can also pass through part of the head end of the ground anchor or interact with a counter-fastening element provided at the head end. The elongate shaft can typically be guided through an aligned arrangement of a plurality of through openings on the upper part, on the lower part and on the head end. In this way, all of these components can be fixed to one another and fastened to one another.

According to a further embodiment, the fastening element can be brought into engagement with a counter-fastening element provided at the head end of the ground anchor. This can be a form-fitting and/or frictional mutual engagement of the fastening element and counter-fastening element.

In typical configurations, the fastening element is designed as a screw or as a screw bolt. The counter-fastening element is then designed as a screw nut which can be brought into engagement with an external thread of the screw or the screw bolt.

According to a further embodiment, the base of the lower part has a flat contact surface on an outside facing away from the receptacle, by means of which the lower part can be brought into contact with a front side or front wall of the head end of the ground anchor. A flat contact surface enables a particularly good and full-surface mutual contact position of the ground and thus of the entire swivel adapter on a front side or on a front wall of the head end of the ground anchor. In this way, forces acting in the axial direction can be transferred particularly well from the swivel adapter to the ground anchor; and vice versa.

A flat contact surface on the underside of the pivoting adapter also enables the pivoting adapter to be arranged without tilting and thus particularly securely and securely on the front side or on the front wall of the head end of the ground anchor.

According to a further embodiment, the receptacle of the lower part has a concave ball socket. The insert of the upper part designed to complement this has a correspondingly curved ball head.

The outer geometry of the ball head typically corresponds to the inner geometry of the ball socket. Thus, a particularly large-area mutual mechanical support between the ball socket and the ball head can be realized. This proves to be advantageous for the power transmission between the upper part and the base part.

The mutually corresponding or complementary design of the ball head and the ball socket enables the upper part to be pivoted in relation to the lower part. In particular, this can be in several and / or belie big directions pivotable mounting of the upper part on the lower part and are provided.

According to a further embodiment, the base of the lower part has a first through-opening which is designed or arranged in alignment with a second through-opening of the receptacle. The first through-opening and the second through-opening are typically located at a predetermined distance from the outer edge of the base or the receptacle. The aligned arrangement of the first and second through openings typically extends in the longitudinal direction or in the axial direction. The first and second through-openings in particular allow the fastening element to be passed through or received.

According to a further embodiment, the insert has a third through-opening which can be arranged in alignment with the first and/or second through-opening. In such an aligned arrangement of the three through-openings, the fastening element can be passed through the three through-openings and thus bring about a mutual fixation of the upper part and lower part.

The upper part can be adjustably fixed to the lower part by means of the through-openings of the receptacle and insert, which are aligned with one another. A fastening or fixing means can be passed through the aligned arrangement of the through-openings of the receptacle and insert, by means of which the upper part can be fixed in the receptacle with a friction fit. The fixing means can in particular be designed as a clamping means, for example as a fixing screw, in order to exert a clamping force on the receptacle and on the lower part, which clamping force extends essentially perpendicularly through the aligned arrangement of the two through-openings.

According to a further embodiment, the swivel adapter also has an intermediate piece which has a fourth through-opening, an inner side and an outer side opposite the inner side.

The intermediate piece can in particular be brought into contact with an inside of the dome-shaped or hollow spherical head of the upper part. The inside is located on a side of the ball head facing away from the ball socket. The fourth through-opening of the intermediate piece can be arranged in alignment with the through-openings of the ball head and ball socket. The intermediate piece acts as an abutment for the fastening element, in particular for a radially expanded head of the fastening element, when this engages with the counter-fastening element typically formed on the ground anchor and thereby exerts a clamping force which is oriented in the longitudinal direction of the shank.

According to a further embodiment, the inner side of the intermediate piece can be brought into contact with an inner side of the ball head. The outside of the interface is clampingly engageable or abuttable with the fastener. The inside of the clamping element can be designed and geometrically shaped to correspond to the inside of the ball head. For example, the inside of the ball head can have a curvature, such as a concave curvature. Accordingly, the inside of the adapter has a convex curvature that corresponds to the concave curvature of the inside of the ball head.

In this way, a largely full-surface mutual contact position of the intermediate piece and the inside of the ball head can be achieved. The outside of the intermediate piece can be designed according to the geometry of the radially expanded head of the fastening element. For example, if the head has an essentially flat or planar geometry, the outside of the adapter can be designed essentially planar or even.

The adaptation of the outer geometry of the intermediate piece to the head of the fastening element and to the inside of the ball head enables a particularly homogeneous and precise introduction of clamping or compressive forces into the clamping or frictional arrangement of ball head and ball socket.

According to another embodiment of the ground anchor, the third through-opening of the insert, and therefore the through-opening of the ball head, has an internal cross-section that is larger than an internal cross-section of the second and/or first through-opening of the receptacle and/or the base, and therefore larger than the through-opening of the ball socket .

The internal cross-section of the through-opening in the area of the receptacle or in the area of the ball socket can essentially correspond to the cross-section of the elongated shaft of the fastening element. For a movable or pivotable alignment of the insert, and therefore of the ball head in the ball socket, it is advantageous if the internal cross section of the through opening of the insert is larger, at least in a transverse direction, than the internal cross section of the through opening of the receptacle. In this way, the use, and therefore the ball head in the recording, are therefore pivoted as needed in the ball socket.

According to a further embodiment of the ground anchor, it is provided that the inner cross-section of the passage opening of the insert or of the ball head has an elongated hole and accordingly has an approximately rectangular or elliptical contour. This enables the insert to be pivoted along a direction predetermined by the longitudinal direction of the elongated hole.

If the axis of rotation or pivoting of the ball head is to be rotated or changed, this can be done by rotating the insert, and therefore the ball head, with respect to an axis of rotation that extends through a central longitudinal axis of the insert or through the aligned arrangement of the through-openings.

According to a further embodiment of the ground anchor, the head of the fastening element can be fixed within the hollow curvature of the insert or the ball head and/or within the receptacle of the head end or within the ball socket of the head end of the elongated base part. In particular, the head does not protrude from the receptacle in the longitudinal direction. In its final assembly configuration, an end of the head remote from the shank portion is entirely within the insert or receptacle.

According to a further development, an inner side of the receptacle of the lower part facing the base of the lower part is supported at least in regions directly on an inner side of the base facing the receptacle. In this way, mechanical stabilization of the curved receptacle can be achieved, in particular in the edge area of the second passage opening. In the case of a fastening element passing through the through openings and if the fastening element is screwed tight if necessary, an axial clamping force is exerted on the reciprocal contact between the lower part and the upper part. Due to the direct at least regional support of the receptacle on the floor, the lower part can be structurally reinforced and thus absorb and transmit the axial forces occurring in the course of tightening or fixing particularly well.

The mutual support of the receptacle and the base also counteracts an otherwise possible deformation of the receptacle and/or the base when the fastening element is tightened.

The swivel adapter, in particular its lower part and/or its upper part, is typically made of a metallic material, such as hot-dip galvanized steel or stainless steel. In this case, the upper part can typically be designed in one piece. The lower part can be designed in one or more parts. The entire ground anchor, and therefore its base part, can be made of metal, in particular of steel, for example of galvanized and therefore corrosion-resistant steel.

For example, the lower part can have a flat base with a side wall surrounding the edge of the base. The side wall and the base can be designed in one piece and manufactured as a deep-drawn component. Equally, the receptacle can be manufactured as a deep-drawn component. The curved receptacle can, for example, be welded over its peripheral outer edge to an area of the side wall facing away from the bottom. The deepest point or area of the receptacle can come into contact with an inner side of the floor or be structurally supported thereon.

Finally, according to a further aspect, the present invention relates to a ground anchor for insertion into the ground or into the ground. The ground anchor has an elongate base body with a foot end that can be introduced into the ground and with a head end that is opposite the foot end. In an assembled position, the head end typically protrudes from the ground or is flush with the ground or soil. A front side or a front wall is formed at the head end, on which a pivoting adapter described above is arranged, in particular detachably arranged.

According to a further embodiment, it is provided that the end wall has a fifth through-opening at the head end of the ground anchor for receiving the fastening element. In this respect, a final assembly position is provided on the ground anchor for the swivel adapter, in which position the through-openings of the swivel adapter come to lie flush with the fifth through-opening of the ground anchor. The swivel adapter can then be locked or fixed and attached to the ground anchor by means of a single fastening element.

According to a further embodiment, a counter-fastening element corresponding to the fastening element is arranged and/or fixed on an inner side of the end wall of the ground anchor.

The counter-fastening element can be a nut, for example act a so-called weld nut, which is arranged on an inner side of the end wall of the ground anchor, facing away from the swivel adapter, aligned with the fifth through-opening or is welded to the inner side of the end wall. The weld nut or screw nut can have an internal thread, which is designed to correspond to an external thread of the elongated shank of the fastening element.

According to a further embodiment, the end wall of the ground anchor has a flat external contact surface for the bottom of the swivel adapter. It is advantageous here if both the outside of the floor and the outside of the front wall each have a flat contact surface. In this way, the pivoting adapter can be mounted on the ground anchor largely without tilting or play.

Finally, in a further aspect, a method for fixing a previously described pivoting adapter to a previously described ground anchor is provided. The swivel adapter is arranged with its lower part at the head end of the ground anchor. The upper part is then fixed to the lower part by means of a fastening element, typically by means of a single fastening element, and at the same time the lower part is fastened to the ground anchor.

For this purpose, in terms of process and assembly, it is provided that the through-openings in the lower part and upper part as well as on the intermediate piece and at the head end of the ground anchor are aligned on top of each other, then the fastening element is passed through the aligned arrangement of the through-openings and finally the fastening element is connected to the counter-fastening element provided at the head end, preferably screwed to this.

The fastening element can then apply a clamping force acting in the axial direction, i.e. in the longitudinal direction of the shank of the fastening element, to the intermediate piece and finally to the ball head, the ball socket and the end wall. The pivoting adapter and any further add-on parts to be attached to it can thus be aligned, for example, with respect to the vertical and fixed with regard to their direction, and also attached and fixed to the ground anchor, by means of a single assembly step.

character list

• 1 eine perspektivische Darstellung eines Erdankers,
• 2 eine Explosionsdarstellung einer Ausführungsform des Erdankers,
• 3 eine perspektivische Darstellung des Unterteils des Schwenkadapter von schräg oben betrachtet,
• 4 eine perspektivische Darstellung des Unterteils des Schwenkadapters von schräg unten betrachtet,
• 5 einen Querschnitt durch das Unterteil,
• 6 einen Querschnitt durch die Anordnung des Schwenkadapters in Montagestellung am Kopfende des Erdankers,
• 7 eine perspektivische Darstellung des Oberteils des Schwenkadapter von schräg oben betrachtet,
• 8 einen Querschnitt durch das Oberteil,
• 9 eine perspektivische Darstellung des Oberteils des Schwenkadapters von schräg unten betrachtet,
• 10 eine Seitenansicht des Zwischenstücks
• 11 eine perspektivische Darstellung des Zwischenstücks,
• 12 eine alternative Ausgestaltung des Oberteils in einer Seitenansicht,
• 13 eine weitere alternative Ausgestaltung des Oberteils in einer Seitenansicht,
• 14 eine perspektivische Darstellung einer Konsole zur Befestigung eines Balkens oder Trägers an dem Erdanker,
• 15 eine weitere perspektivische Darstellung der Konsole gemäß 14,
• 16 eine Draufsicht auf die Konsole von oben,
• 17 eine Ansicht der Konsole von vorne und
• 18 eine vergrößerte Detailansicht eines mittels einer Konsole am Erdanker befestigten Balkens.

Other goals, features and advantageous applications of the ground anchor are explained in the following description of an embodiment with reference to the drawings. Here show:

• 1 a perspective view of a ground anchor,
• 2 an exploded view of an embodiment of the ground anchor,
• 3 a perspective view of the lower part of the swivel adapter viewed diagonally from above,
• 4 a perspective view of the lower part of the swivel adapter viewed diagonally from below,
• 5 a cross section through the lower part,
• 6 a cross section through the arrangement of the swivel adapter in the installed position at the head end of the ground anchor,
• 7 a perspective view of the upper part of the swivel adapter viewed diagonally from above,
• 8th a cross section through the upper part,
• 9 a perspective view of the upper part of the swivel adapter viewed diagonally from below,
• 10 a side view of the adapter
• 11 a perspective view of the intermediate piece,
• 12 an alternative embodiment of the upper part in a side view,
• 13 a further alternative embodiment of the upper part in a side view,
• 14 a perspective view of a bracket for attaching a beam or beam to the ground anchor,
• 15 according to another perspective view of the console 14 ,
• 16 a top view of the console,
• 17 a view of the console from the front and
• 18 an enlarged detailed view of a beam attached to the ground anchor by means of a console.

Detailed description

In the 1 and 2 an embodiment of a ground anchor 10 is shown, which can be inserted into the ground, typically screwed into the ground. The ground anchor 10 has a base body 13 or a corresponding base part with a head end 14 and an opposite foot end 15 . The base body 13 is a elongated base. The head end 14 is at one longitudinal end. The foot end 15 at the opposite longitudinal end of the base part or main body 13 is designed to taper to a point. It has a tip 11 at its free end. The end section located below in the assembly direction, approximately the lower half of the base body 13, tapers conically towards the foot end 15 or towards the tip 11.

A helical coil 12 is formed on an outer side of the foot end 15, which enables the ground anchor 10 to be screwed into the subsoil or soil.

The overhead head end 14 is designed essentially as a hollow cylinder. It has an essentially cylindrical side wall 17 . As in particular in 2 shown, the end of the side wall 17 facing away from the foot end 15 forms a head end 14 of the base body 13. In the region of the head end 14, the side wall 17 has two opposite through openings 9. For example, a rod can be inserted through those passage openings, by means of which a torque for screwing the ground anchor 10 into the ground can be applied to the ground anchor 10 .

The head end 14 ends with a flat end wall 16 . The front wall shows, as in 6 shown has an inner side 16a facing into the cavity and an opposite outer side 16b. A counter-fastening element 60, for example in the form of a nut 61, is provided on the inside 16a. The counter-fastening element 60, and consequently the nut 61, can be welded to the inside 16a and in this respect can be in the form of a weld nut. In the edge area of the end wall 16, as in 2 shown, another in the form of a drain opening 8 may be formed. Excess anti-corrosion material, such as zinc, can drain out of the inner cavity of the base body 13 through this drain opening 8 .

A through opening 18 through which a fastening element 50 with a shank 53 can be guided is formed on the end wall 16 in alignment with the internal thread of the nut 61 .

A swivel adapter 1 can be detachably arranged on the end wall 16 or on the end face of the ground anchor 16 . The swivel adapter 1 has a lower part 20 and an upper part 30 . The lower part 20 has a base 22 which can be arranged and/or fixed directly adjacent to the end wall 16 on the base body 13 .

The lower part 20 can have a one-part or multi-part base body 21 . In the embodiment shown here, in particular as in the 3 until 5 shown, the lower part 20 has an essentially cylindrical basic geometry. The base 22 merges into a cover 24 via a cylindrical side wall 27 . The cover 24 has a receptacle 26 for the upper part 30 that is curved inward toward the floor 22 . In particular, the cover 24 is designed as a dome-shaped ball socket 28 . To this extent, the receptacle 26 can have a dome-shaped geometry.

A through hole 29 is formed in a radial center of the bottom 22 . This is referred to here as the first passage opening. A through-opening 25 is also formed in the cover 24 and is aligned with the through-opening 29 . The through-opening 25 is also referred to as the second through-opening in the present context.

The through openings 25, 29 typically have an identical cross-sectional geometry. They are designed to receive the shank 53 of the fastening element 50 .

As in particular in the cross section of 5 shown, the cover 24 has an inner side 26a facing the floor 22 . The floor 22 has an inner side 22a facing the ceiling 24 . In the area of the through-openings 25, 29, the mutually facing inner sides 26a, 22a of the top 24 and bottom 22 touch.

Consequently, the cover 24 can be structurally supported on the opening boundary of the first through opening 29 approximately in the region of the opening boundary of the second through opening 25 . A particularly stable lower part 20 can be formed in this way. This is particularly advantageous for a clamping arrangement of the lower part 20, the upper part 30 and the head end 14, which can be formed by means of the fastening element 50. Any axial clamping forces that can be introduced into the arrangement shown here via the fastening element 50 therefore do not lead to a possible deformation of the receptacle 26, or at most to a particularly small extent.

The side wall 27 and the base 22 of the lower part 20 can be manufactured in one piece, for example as a deep-drawn metal component. Equally, the cover 24 can also be made of metal as a deep-drawn component. The ceiling 24 can typically be welded to the upper edge of the side wall 27 over its peripheral outer edge. In this respect, the lower part 20 can have a one-part or multi-part base body 21 .

In the representation according to 4 further passage openings 23 in the bottom 22 are shown. These open into the cavity of the lower part 20 delimited by the side wall 27, the floor 22 and the ceiling 24 and act as a drain opening for corrosion protection, for example for hot-dip galvanizing or for galvanizing.

As in particular from the 1 until 3 shows, the receptacle 26 has a ball socket or a ball socket section 28 with a through-opening 25 . The ball socket or the ball socket section 28 is in 3 again shown separately. The ball socket 28 has a concave curvature which is arched towards the head end 14 when the ball socket 28 is installed or assembled.

The upper part 30 has an insert 36 designed in the manner of a ball head 38 with a precise fit to the receptacle 26 or a precise fit to the ball socket section 28 . The insert 36 has, as in the 7 - 9 shown, a curvature 37, which corresponds to the curvature of the ball socket 28. Roughly in the middle or centrically in the insert 36 is a further through-opening 39, such as a third through-opening.

When the upper part 30 and receptacle 26 are assembled, the through-opening 39 is arranged and aligned in alignment with the through-opening 25 of the receptacle 26 . As in particular in 9 shown, the through-opening 39 has an elongated hole 35 . The elongated hole 35 is characterized by a long side and a short side. The short side of the elongated hole 35 has an extent or an internal cross-section that essentially corresponds to the diameter of the through-opening 25 of the receptacle 26 . In contrast, the long side of the elongated hole 35 has a significantly greater extent. This enables the upper part 30 to be pivoted on or in the receptacle 26 with respect to a pivot axis which extends essentially parallel to the short side of the elongated hole 35 .

The fastening element 50 is provided for fixing the upper part 30 to the lower part 20 . In the present exemplary embodiment, this has an elongated shaft 53 with a threaded section 54 . The threaded section 54 is an external thread which is designed to correspond to the internal thread of the screw nut 61 . The fastening element 50 also has a head 52 which is radially expanded in relation to the shank 53 . The diameter or width of the head 52 is larger than the short side of the slot 35.

Finally, the swivel adapter 1 also has an intermediate piece 40 with a curved inside 42 and with an essentially planar outside 43 . Furthermore, the intermediate piece 40 has a fourth through opening 49 which extends from the inside 42 to the outside 43 . In the 2 and 6 The inner side 42 lying underneath is designed to correspond to the curvature 37 of the ball head 38 . The opposite outer side 43 of the intermediate piece 40 is designed to correspond or correspond to the geometry of the underside of the head 52 of the fastening element 50 . in a 6 In the final assembly position shown, the shank 53 of the fastening element 50 passes through the aligned arrangement of the through openings 49, 39, 25, 29 and 18 of the intermediate piece 40, upper part 30, lower part 20 and end wall 16.

In a pre-assembly position, in which the fastening element 50, in particular its shank section 53, passes through all through openings 49, 39, 25, 29, 18, the swivel adapter 1, in particular its upper part 30, can still be swiveled relative to the lower part 20 into a required assembly position. A sufficient clamping force can then be exerted on the ball head connection by tightening the fastening element 50 so that not only the lower part 20 is fixed relative to the upper part 30 but also the lower part 20 is firmly connected to the head end 14 of the ground anchor 10 . In that regard, there is a simplification of assembly.

The underside of the head 52 comes to rest on the upper outer side 43 of the intermediate piece 40 . Screwing the fastening element 50, or screwing the fastening or fixing screw 51 to the counter-fastening element 60, and therefore to the nut 61, leads to the exertion of a clamping force on the arrangement of the intermediate piece 40, ball head 38 and ball socket 28.

The passage opening 49 of the intermediate piece 40 can be designed to correspond to the outer diameter of the shank 53 of the fastening element 50 . The external dimensions of the intermediate piece 40 are at least significantly larger than the dimensions of the elongated hole 35 so that a sufficient pressing effect on the inside of the bulge 37 of the insert 36 and consequently on the ball head 38 can be achieved.

The upper part 30, which can be fixed adjustably on the base part 20, has, adjacent to the insert 36, for example an approximately planar mounting plate 31, which in the final assembly state according to FIG 3 projecting radially outwardly from the outside of the head end 24 of the base part 20 . Those Mounting plate 31 can protrude from the outer circumference of base part 20 in the manner of a flange. In the present exemplary embodiment, the mounting plate 31 has recesses or through-openings 32 on the edge. These enable various add-on parts to be attached, for example screwing them tight using a screw bolt 141, as in 18 shown.

Instead of cutouts 32 at the edge, through-openings, optionally paired with weld nuts on the mounting plate 31, are also conceivable.

The spherical head connection of the upper part 30 to the lower part of the swivel adapter 1 makes it possible in particular that the ground anchor 10 does not necessarily have to be screwed into the ground exactly vertically. Any deviations from a vertical or perpendicular alignment of the ground anchor 10 can be compensated for by the adjustable and then fixable arrangement of the upper part 30 on the lower part.

In the 12 and 13 two further exemplary embodiments of upper parts 70, 80 are shown, which alternatively or instead of 1 - 9 Upper part 30 shown can be used. These each have an insert 36 with a ball head 38, which is provided with a convex curvature 37, which, as previously to the embodiments of 6 - 9 described, each having a through hole 39 configured as a slot 35 .

This in 12 The upper part 70 shown has a side wall 71 which is axially adjacent to an end remote from the ball head 38 and which forms a receptacle 74 which is open towards the top. The side wall 71 can be cylindrical and in this respect designed as a hollow sleeve. This is suitable, for example, for accommodating elongated objects, such as posts or sunshades. The side wall 71 or sleeve can be formed in one piece with the insert 36 or can be integrally bonded thereto, for example welded. An outer wall of the side wall 71 can come to rest approximately flush with an outer wall of the insert 36 .

The hollow interior of the side wall 71 can transition into the interior of the bulge 37 without interruption. In this way, the inside of the bulge 37 facing upwards remains freely accessible for any assembly tools.

This in 13 The upper part 80 shown also has a receptacle 84 which is open at the top. The receptacle 84 is delimited by at least two opposite side legs 81, 83. Those side legs 81 , 83 extend from an upper end of the upper part 80 facing away from the ball head 38 . The side legs 81, 83 can be formed in one piece with the insert 36 or can be cohesively bonded thereto, for example welded thereto.

The legs 81, 83 lying opposite one another can function, for example, as post supports. A suitable post or a correspondingly elongated attachment can be placed in the free space between the opposing legs 81, 83 and releasably attached thereto by means of separate fastening elements, for example by means of fastening screws and/or fastening bolts passing through the legs 81, 83.

As also in 13 shown, the top 80 can optionally have a separate bottom 82 . The bottom 82 and the side limbs 81, 83 can be designed as a one-piece U-shaped assembly part and optionally be detachably or firmly connected to the insert 36 or to the ball head 38. Such a U-shaped mounting part can be distinguished by a particularly high degree of stability and torsional rigidity.

The base 82 can preferably have at least one axial passage opening for a tool in a radially central area, for example to tighten the fastening element 50, the head 53 of which comes to lie inside the bulge 37.

The in the 14 until 18 The bracket 100 shown serves to fasten a beam 200 or a carrier to a ground anchor 10 described above. It has a first leg 104 and a second leg 106 arranged at a predetermined angle thereto. The first leg 104 as well as the second leg 106 have a substantially flat surface. The first leg 104 serves as a support for the beam 200, as is the case, for example, in 18 is clarified. The second leg 106 acts as a support for the beam 200.

In the area of the second leg 106, a plurality of through-openings 107 or holes, or a hole pattern, are formed. Separate fastening elements, such as nails or screws, can be driven through the second leg 106 and into the beam 200 via the through-openings 107 . Permanent fixing of the bar 200 to the bracket 100 is possible via or by means of the through-openings 107 .

The first leg 104 has an underside 103 which faces away from the second leg 106 . The first leg 104 has an upper side 105 facing the second leg 106 . A first beam support 120 and a second beam support 122 are provided on the upper side 105 and are formed in one piece with the first leg 104 .

The first and second beam supports 120, 122 can each be designed as a type of L-shaped support or as an L-shaped profile. In the exemplary embodiment shown here, the first beam support 120 extends approximately parallel to the second beam support. The first leg 104 has a through opening 108 between the first beam support 120 and the second beam support 122 . The entire intermediate space 119 between the first support leg 120 and the second support leg 122 can adjoin the through-opening 108 .

To this extent, the through opening 108 can occupy the entire intermediate space 119 between the first beam support 120 and the second beam support 122 . In terms of manufacturing technology, the through-opening 108 can be introduced into the leg 104 by being punched out. Edge regions of the punched through opening 108 can be provided with a slit, which enables the former opposite edge sections of the through opening 118 to be shaped or formed into the first and second beam supports 120, 122 shown here. In this respect, the first and second beam supports 120, 122 can be integrated into the first leg or can be designed as an integral part of the first leg 104.

The first leg 104 adjoins the second leg 106 to form an L-shaped angle. Those areas of the outer edge 117 of the first leg 104 which do not adjoin the second leg 106 are referred to below as the outer edge 117 . The outer edge 117 has a first edge section 117a, an opposite second edge section 117c and a third edge section 117b. The first edge section 117a and the second edge section 117c each adjoin the second leg 106 . The third edge section 117b extends between the first edge section 117a and the second edge section 117c.

This is located on an end of the first leg 104 facing away from the second leg 106 . The first leg 104 has an edge zone 115 on the inside and adjacent to the outer edge 117 . The edge zone 115 is located outside of the through-opening 108 and also outside of the beam supports 120, 122 adjoining the through-opening 108.

A first attachment structure 110 and a second attachment structure 112 are provided on the first leg 104 or embedded in the first leg 104 in the area of the edge zone 115 . In the present case, the fastening structures 110, 112 are through-openings 111, 113, which extend through the first leg 104. The through-opening 111 is designed as an elongated hole 114 in the present case. The through-opening 113 is designed as an elongated hole 116 in the present case. The two elongated holes 114, 116 extend essentially parallel to one another. They run approximately parallel to the respectively adjoining edge section 117a, 117b.

The fastening structures 110, 112 enable the bracket 100 to be fastened to the ground anchor 10, typically by screwing, typically to the upper part 30 of the ground anchor 10. For this purpose, the fastening structures 110, 112 can be approximately aligned with one or more recesses 32 in a mounting plate 31 of a top part 30 of the ground anchor 10 come to rest.

Then, by means of a fastening element 140, which is designed, for example, as a screw bolt 141, the console 100 and the upper part 30 can be fastened to the ground anchor 10 alternately. As in particular in the detailed view according to 18 shown, the screw 141 penetrates with its shank 143 the aligned arrangement of the first fastening structure 110 and the second fastening structure 112 with respective underlying recesses 32 of the mounting plate 31 of the upper part 30. The head 142 of the screw 141 is here typically in the intermediate space between the upper side 105 of the first leg 104 and an underside of the beam 200 resting on the beam supports 120, 122.

The head 142 is still accessible from the outside using a wrench. A tightening of the screw 141 with a screw nut 144 typically provided on the underside of the mounting plate 31 can in this respect also be carried out with a beam 200 or carrier already attached to the second leg 106 . This enables subsequent adjustment of the bracket on the ground anchor 10.

The elongated holes 114, 116 typically extend approximately parallel to the surface normal of the second leg 106. A beam 200 fixed to the second leg 106 can in particular be attached to a plurality of ground anchors distributed or spaced apart along the longitudinal direction of the beam 200 10 are each attached by means of a console 100.

If the individual ground anchors 10 are not arranged exactly in line with one another in the longitudinal direction of beam 200, the design and orientation of elongated holes 114, 116 approximately obliquely or perpendicularly to the longitudinal extent of beam 200 can provide a corresponding displacement and adjustment of bracket 100 relative to ground anchor 10 will. A corresponding adjustment or shifting of the console relative to the ground anchor 10 can be carried out through the lateral accessibility to the fastening elements 140 in the case of a beam already fastened to the second leg 106 .

Furthermore, by providing two fastening structures 110, 112 on or near opposite outer edges or edge sections 117a, 117c of the outer edge 117 of the first leg 104, a multiple and thus redundant and durable fastening of the console 100 to the ground anchor 10 can be provided.

The circumferential outer edge 117 of the first leg 104 can have a bevel 118 which projects upwards or downwards and which can also be configured as a flange, for example. As a result, the stability and torsional rigidity of the first leg 104 can be further increased.

The first attachment structure 110 is located between the first beam support 120 and the first edge portion 117a of the outer edge 117. Accordingly, the second attachment structure 112 is also located between the second beam support 122 and the second edge portion 117c of the outer edge 117 of the first leg 104. The beam supports 120, 122 each have an L-shaped cross section. In this respect, the first beam support 120 has a first support leg 124 extending approximately parallel to the surface normal of the first leg 104 and a second support leg 126 adjoining it.

The second support leg 126 extends essentially perpendicularly to the first support leg 124. The two support legs 124, 126 form a support angle 121. The second support leg 126 forms the upper free end of the first beam support 120 and acts as a support surface for the beam 200 or for a corresponding one Carrier. The second support leg 126 is provided at such a distance from the upper side 105 of the first leg 104 that an unhindered rotation of the head 142 of the fastening screw 141 is possible. That is, the extension of the first support leg 124 in the direction of the surface normal of the first leg 104 is greater than the axial extension of the head 142 of the screw 141.

The second support leg 126 projects inwardly, i.e. away from the outer edge 117 . In this respect, it extends into the area of the through-opening 108. On the inside, the second support leg 126 has a corrugated edge section 128, which not only gives the bracket 100 a particularly aesthetic appearance, but also from a technical point of view forms a support for the beam that varies in position in the longitudinal direction of the beam . This can prove advantageous for water drainage and rear ventilation of the beam 200 .

The second support bar 122 is designed symmetrically to the first support bar 120 . This also has a flat first support leg 125 which adjoins a second support leg 127 . The second support limb 127 extends essentially parallel to the plane of the first limb 104 while the first support limb 125 extends upwards out of the plane of the first limb 104 . The first and the second support leg 125, 127 likewise form a support bracket 123.

The support brackets 121, 123 typically border on the inside of the second leg 106. They may also be structurally connected to the second leg 106, such as welded thereto. This gives the console 100 even better stability and torsional rigidity.

Facing the first beam support 120, the second support leg 127 of the second beam support also has a corrugated or wave-shaped edge section 129.

Reference List

1

swivel adapter

8th

drain hole

9

passage opening

10

ground anchor

11

Top

12

helix

13

Body / base part

14

headboard

15

foot end

16

bulkhead

16a

inside

16b

outside

17

Side wall

18

passage opening

20

lower part

21

body

22

floor

22a

inside

23

passage opening

24

ceiling

25

passage opening

26

recording

26a

inside

27

Side wall

28

ball socket

29

passage opening

30

top

31

mounting plate

32

recess

35

Long hole

36

mission

37

camber

38

ball head

39

passage opening

40

spacer

42

inside

43

outside

49

passage opening

50

fastener

51

mounting screw

52

head

53

shaft

54

threaded section

60

counter fastener

61

nut

70

top

71

Side wall

74

recording

80

top

81

leg

82

floor

83

leg

84

recording

100

console

102

mounting bracket

103

bottom

104

leg

105

top

106

leg

107

passage opening

108

passage opening

110

mounting structure

111

passage opening

112

mounting structure

113

passage opening

114

Long hole

115

edge zone

116

Long hole

117

outer edge

117a,b,c

edge section

118

edging

119

space

120

beam support

121

support bracket

122

beam support

123

support bracket

124

leg

125

leg

126

leg

127

leg

128

edge section

129

edge section

140

fastener

141

screw

142

head

143

shaft

144

mother

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102005045574 A1 [0002]

Claims (15)

Swivel adapter (1) for attachment to the head end (14) of a ground anchor (10), the swivel adapter (1) comprising the following: - a lower part (20) with a base (22) for detachable arrangement at the head end (14), the lower part (20) facing away from the base (22) having a receptacle (26), - An upper part (30) with a mounting plate (31) and with an insert (36) which can be inserted into the receptacle (36) and can be fixed in an adjustable manner in the receptacle (26). Swivel adapter (1) according to claim 1 which further has a fastening element (50), by means of which the upper part (30) can be fixed relative to the lower part (20) and by means of which the lower part (20) can be fastened and/or fixed to the head end (14) of the ground anchor (10). Swivel adapter (1) according to claim 2 , wherein the fastening element (50) has an elongate shaft (53) which penetrates both the upper part (30) and the lower part (20) in the longitudinal direction. Swivel adapter (1) according to claim 2 or 3 , The fastening element (50) being engageable with a counter-fastening element (60) provided at the head end (14) of the ground anchor (10). Swivel adapter (1) according to one of the preceding claims, wherein the base (22) has a flat contact surface (19) on an outer side (22b) facing away from the receptacle (26), by means of which the lower part (20) can be connected to an end face or end wall (16 ) of the head end (14) of the ground anchor (10) can be brought into abutment position. Swivel adapter (1) according to one of the preceding claims, wherein the receptacle (26) has a concave ball socket (28) and wherein the insert (36) has a ball head (38) curved complementary thereto. Swivel adapter (1) according to one of the preceding claims, wherein the base (22) has a first through-opening (29) which is constructed or arranged in alignment with a second through-opening (25) of the receptacle (26). Swivel adapter (1) according to claim 7 , wherein the insert (36) has a third through-opening (39) which can be arranged in alignment with the first and/or second through-opening (29, 25). Swivel adapter (1) according to claim 7 or 8th , further with an intermediate piece (40) which has a fourth through-opening (49), an inner side (42) and an opposite outer side (43), the fourth through-opening (49) extending from the inner side (42) to the outer side (43 ) extends. Swivel adapter (1) according to one of the preceding claims, wherein an inner side (26a) of the receptacle (26) facing the base (22) is supported at least in regions directly on an inner side (22a) of the base (22) facing the receptacle (26). Ground anchor (10) for insertion into the ground or in the ground, with an elongate base body (13) which has a foot end (15) that can be inserted into the ground and a head end (14) opposite the foot end (15), with one end face or end wall (16) of the head end (14), a swivel adapter (1) according to one of the preceding claims is arranged. Ground anchor (10) after claim 11 , The end wall (16) at the head end (14) has a fifth through-opening (18) for receiving the fastening element (50). Ground anchor (10) after claim 11 or 12 , wherein a counter-fastening element (60) corresponding to the fastening element (50) is arranged and/or fixed on an inner side (16a) of the end wall (16). Ground anchor (10) according to any one of the preceding Claims 11 until 13 , wherein the end wall (16) has a flat outer contact surface (16b) for the bottom (22) of the swivel adapter (1). Method for fixing and attaching a swivel adapter, on 1) according to one of the preceding Claims 1 until 11 on a ground anchor (10) according to any one of the preceding Claims 11 until 14 , wherein the swivel adapter (1) is arranged with its lower part (20) at the head end (14) of the ground anchor (10) and the upper part (30) is fixed to the lower part (20) by means of a single fastening element (50) and at the same time the lower part (20) attached to the ground anchor (10).

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