FASTENING ELEMENT, IN PARTICULAR FOR SOLAR PANELS

Abstract

A fastening element, in particular for solar panels, includes a tubular pole, a load element, and a ground anchor sleeve. The fastening element may include a tubular pole holder for insertion of a free end of the tubular pole. The fastening element further relates to a solar fence, having at least one solar panel which is disposed between two fastening elements and fastened thereto.

Claims

1. A fastening element for solar panels, comprising a tubular pole, a load element and a ground anchor sleeve.

2. The fastening element, according to claim 1, wherein the ground anchor sleeve comprises a tubular pole holder, into which a free end of the mast tube is configured to be inserted.

3. The fastening element, according to claim 1, wherein the load element is disc-shaped and has a central recess through which a free end of the ground anchor sleeve extends when installed.

4. The fastening element according to claim 3, wherein the tubular pole is configured to be moved by a pivot element towards the load element.

5. The fastening element according to claim 4, wherein the pivot element is formed by an elastomer element disposed within the tubular pole holder, which surrounds the tubular pole holder inserted into the tubular pole holder.

6. The fastening system, comprising at least two fastening elements according to claim 1, wherein the fastening elements are configured such that, when fastened, are arranged such that a central fastening element is located below an outer fastening element and is thus arranged between a substrate and the outer fastening element.

7. The fastening system, comprising at least two fastening elements according to claim 1, wherein the fastening elements are configured such that, when fastened, are arranged such that a central fastening element is laterally adjacent to an external fastening element.

8. The fastening system according to claim 7, wherein outer shell surfaces of the two fastening elements touch each other when fastened.

9. The fastening system according to claim 6, wherein a plurality of external fastening elements are provided for each central fastening element.

10. A solar fence comprising at least one solar panel which is arranged between two fastening elements according to claim 1 and fastened to the two fastening elements.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The disclosure is explained in more detail based on the following figures. These are only to be understood as examples, they are not intended to limit the disclosure to the exemplary embodiments shown. In particular, the figures are not true to scale, they are merely simplified representations of principles. The figures show:

[0048] FIGS. 1a to 1f: different views of a fastening element according to the disclosure,

[0049] FIGS. 2a to 2e: fastening elements inserted into a substrate,

[0050] FIG. 3 a ground anchor sleeve of a fastening element according to the disclosure,

[0051] FIG. 4 a first embodiment variant of a tubular pole holder with an elastomer element,

[0052] FIG. 5 a second embodiment variant of a tubular pole holder with an elastomer element,

[0053] FIGS. 6a, 6b: a fastening system with external fastening elements resting on top in sections, and

[0054] FIGS. 7a, 7b: a fastening system with adjacent non-surface-mounted external fastening elements.

DETAILED DESCRIPTION OF THE DRAWINGS

[0055] FIG. 1 shows the basic structure of a fastening element 20 according to the disclosure, having a load element 1, a ground anchor sleeve 2 and a tubular pole 3. The fastening element according to the disclosure 20 is particularly suitable for the erection of a solar fence 22, as shown in FIGS. 2 and 7, but any other objects can also be fastened to the substrate by means of the fastening element 20 according to the disclosure. Such a solar fence 22 is formed from at least two fastening elements 20 and a solar panel 24 located between them. FIG. 7 shows as an example only a single solar panel 24 between two fastening elements 20.

[0056] A fastening element 20 is inserted into a substrate 26 via the ground anchor sleeve 2 and is firmly anchored in the substrate due to the formation of the ground anchor sleeve 2 in connection with the load element 1. In the exemplary embodiment shown above, the tubular pole 3 and the ground anchor sleeve 2 are made of two pieces and are preferably only connected to each other on site. For this purpose, the ground anchor sleeve 2 has a tubular pole holder 28 into which a free end of the tubular pole 3 can be inserted.

[0057] In the exemplary embodiment shown, load element 1 is designed as a circular disc, which is preferably made of steel-reinforced concrete. As can be seen in particular from FIG. 1d, the load element 1 has a central recess 32 through which a free end of the ground anchor sleeve 2 extends when installed. Furthermore, four evenly distributed openings 34 are provided, through which wedge-shaped structures in the ground or ground spikes 52 (cf. FIG. 7) can be driven into the substrate 26 for earth integration. In addition, there are openings or recesses 35, which effectuate integration with the substrate.

[0058] The structure of an favourable ground anchor sleeve 2 is particularly evident in FIG. 3. The ground anchor sleeve 2 is formed by a coiled and preferably welded, tapered trapezoidal sheet, which forms a tubular sleeve longitudinal body 40, on which a flat steel 38 is fixed in a helix, preferably welded. The ground anchor sleeve 2 comprises the tubular pole holder 28 for the tubular pole 3 at its end facing away from the substrate, which is formed by an end-side opening of the tubular sleeve longitudinal body 40. The tubular pole 3 is inserted into the tubular pole holder 28 in sections, wherein the conicity delimits the insertion of the tubular pole 3. Furthermore, an indentation 42 is provided, which reduces the diameter inside the tubular pole holder 28 and thus additionally fixes the tubular pole 3.

[0059] The tubular pole holder 28 preferably has a non-circular cross-section not shown to accommodate a tool with which the ground anchor sleeve 2 can be screwed into the substrate 26. For example, a square opening in the style of a square key holder is suitable. The non-circular cross-section can preferably be designed and arranged in such a way that a tubular pole 3 with a round cross-section can still be accommodated in the tubular pole holder 28. For example, only a certain length section, preferably adjacent to the opening of the tubular pole holder 28, can be non-round, which then changes into a round cross-section in the direction of the substrate 26.

[0060] It has been shown that in average Central European substrate types, the area of the ground anchor sleeve 2 below the load element 1 should have about six times the length of the height D of the load element 1 in order to ensure stable fastening in the substrate 26. For example, the tubular pole holder 28 can have a pick-up depth for the tubular pole 3 that corresponds to three times the height D of the load element 1. The diameter of a circular load element 1 should be approximately eight times the height D of the load element 1.

[0061] In the transition area between the tubular pole 3 and the ground anchor sleeve 2, a pivot element is provided in the exemplary embodiment shown, which enables the tubular pole 2 to be pivoted. FIGS. 4 and 5 show embodiment variants in which an elastomer element 30 is disposed within the tubular pole holder 28, which surrounds the tubular pole holder 3 inserted into the tubular pole holder 28. In the variant in accordance with FIG. 4, there is pivotability in all directions and this is essentially possible with the same amount of force. Instead of the variant of a structured elastomer element 30 shown in FIG. 4, it is also possible to use an elastomer element 30 made of a consistently solid material. By selecting the elastomer element material, the force opposing the movement can be adjusted.

[0062] FIG. 5 shows an embodiment variant in which the usability is only possible along a single axis of motion. For this purpose, the tubular pole holder 28 is not circular but oval. The smallest diameter corresponds approximately to an outer diameter of tubular pole 3. Between an inner wall of the tubular pole holder 28 and the tubular pole 3, elastomer elements 30 are arranged on the two diametrically opposite sides with a larger diameter of the tubular pole 3. Due to this arrangement, a pivotability is only possible in the direction of the two elastomer elements 30 but not transversely to them.

[0063] In a particularly favourable embodiment variant, in accordance with FIGS. 6a and 6b, a plurality of fastening elements according to the disclosure 20 are combined to form a fastening system 60. For example, a central fastening element 20-1, which comprises the tubular pole 3, can be additionally fastened to the substrate via one or a plurality of external fastening elements 20-2. The outer fastening elements 20-2 rest in sections on a surface 62 of the central fastening element 20-1 facing away from the substrate and, like the central fastening element 20-1, are fastened within the substrate via corresponding ground anchor sleeves 2, ground spikes 52 or wedge-shaped structures in the substrate. Thus, the central fastening element 20-1 is located in areas between the substrate and the outer fastening elements 20-2.

[0064] In a further embodiment variant shown in FIGS. 7a and 7b, the outer fastening elements 20-2 are not arranged in an area on the surface 62 facing away from the substrate but are also arranged adjacent to the central fastening element 20-1 over the entire surface of the substrate. In the exemplary embodiment shown, the central fastening element 20-1 and the outer fastening elements 20-2 touch each other with their lateral, vertically aligned shell surfaces 64. Primarily, the outer fastening elements 20-2 in this embodiment variant prevent lateral displacement of the central fastening element.

[0065] The disclosure is not limited to the exemplary embodiment shown, further embodiment variants of the individual elements of the fastening element 20 and/or the solar fence 22 are also possible.