Fastening device for fastening objects in the ground

Abstract

A fastening device (100) for fastening objects (200) with respect to the soil (10) comprises: an outer tube (110), which has a first end (111) and a second end (112) and a cavity (115) extending between the first end (111) and the second end (112); and an ejection unit (120). The ejection unit (120) is arranged in the cavity (115). The ejection unit (120) can be moved in the cavity (115) in relation to the outer tube (110) in a movement direction (122) between a first position and a second position. In the second position, the ejection unit (120) is arranged in such a way that a portion of the cavity (115) adjoining the first end (111) is open in order to receive soil into the cavity (115) from the first end (111). The ejection unit (120) can be moved from the second position into the first position in order to convey the soil received into the cavity (115) out of the cavity (115).

Description

[0001] 675.0001 DE

[0002] Fastening device for securing objects in the ground

[0003] Technical field

[0004] The invention relates to a fastening device for attaching or fixing objects to the ground. In particular, the fastening device enables low-play and reversible fastening without the mandatory use of tools. Furthermore, the invention relates to an arrangement comprising

[0005] background

[0006] Some household and leisure applications require anchoring or securing objects in the ground. For this purpose, elongated, rod-like elements are often driven into the ground, and objects are attached to these elements.

[0007] For example, so-called ground stakes are driven into the ground to secure a tent. In other applications, sleeves with an external thread are inserted into the ground to then hold an object to be fastened, for example, to set up clothes drying racks or rotary clotheslines.

[0008] Most of these fasteners are based on the principle of displacement. When a ground anchor is driven into the ground or a sleeve is screwed into the ground, these elements displace some of the soil and are held in position.

[0009] Especially with fasteners that are inserted linearly into the ground (i.e., without screwing or twisting), the resulting hole or depression in the ground may widen, thereby reducing the lateral holding force exerted on the fastener. This negatively affects the overall strength of the ground anchoring of the object being fastened, as the strength of the ground anchoring is lower than it could be. 675.0001 DE

[0010] Furthermore, the achievable depth with fastening elements that displace the soil is severely limited because the friction between the soil and the fastening element increases significantly with increasing depth.

[0011] Description of the invention

[0012] It can therefore be considered a task to specify a fastening device for insertion into the ground and for fastening objects related to the ground, which can be inserted into the ground without tools and is characterized by an increased strength of the anchoring in the soil, in particular by an increased lateral strength of the anchoring.

[0013] This problem is solved by the subject matter of claim 1. Further embodiments result from the dependent claims and from the following description.

[0014] According to one aspect of the invention, a fastening device for securing objects in relation to the ground is provided. The fastening device comprises an outer tube with a first end and a second end, and a cavity extending between the first and second ends, as well as an ejection unit. The ejection unit is arranged in the cavity. Within the cavity, the ejection unit is movable relative to the outer tube along a direction of movement between a first position and a second position. In the second position, the ejection unit is positioned such that a section of the cavity adjoining the first end is opened to receive soil into the cavity, starting from the first end. The ejection unit is movable from the second position to the first position to remove the soil received into the cavity.

[0015] The fastening device described here is based on the principle that the outer tube creates a depression or hole in the ground, removing the soil at that point rather than displacing it. The outer tube has an open end. This open end is placed on the ground and pressed into the soil in the desired direction (for a desired angle of inclination, e.g., vertically). 675.0001 DE

[0016] In this process, some of the soil penetrates the cavity of the outer tube. When the outer tube is pulled out of the ground, it takes the soil from the cavity with it. The piston inside the outer tube can then be moved to expel the soil from the cavity. The piston can either be manually returned to its starting position, or, when the mounting device is reinserted into the ground, the soil that penetrates the cavity will move the piston back into its starting position. By repeating these steps several times, the depth of the hole in the ground can be increased until the desired depth is reached.

[0017] The outer pipe is therefore pressed into the ground several times; when the outer pipe is removed, soil is carried along in the cavity of the outer pipe, this carried soil is transported out of the cavity, and the outer pipe can now be used again to remove deeper soil from the ground in order to deepen the hole further.

[0018] In this way, a hole is created in the ground that is adapted to the cross-sectional shape of the outer pipe. Furthermore, because the principle of soil displacement is not used, the friction on the outer surface of the outer pipe is lower, and the outer pipe can be sunk deeper into the ground. The lateral holding force acting on the fastening device is primarily influenced by the depth of the hole and not by the frictional force on the outer surface of the outer pipe.

[0019] The fastening device described here allows for the creation of a suitable hole in the ground without additional tools and enables convenient and effortless installation of the fastening device. Simultaneously, because it does not operate on the displacement principle, a greater depth in the ground can be achieved with less force compared to displacement fastening elements, which has a beneficial effect on the lateral holding force.

[0020] The anchoring device can be used in various types of soil, such as sand or clay. One example, though not limited to, is setting up a parasol in sand. Sand is usually loose on the surface and becomes firmer with increasing depth due to the moisture content of the soil. Therefore, it is particularly important to achieve a sufficient depth to ensure that a parasol set up in sand is held firmly in place laterally. The dry and loose sand can first be pushed aside. Now, as described above, a hole can be made in the sand using the anchoring device by repeatedly inserting the outer tube into the sand at the desired angle. Sand is then removed along with the anchoring device by pulling the outer tube out in the opposite direction of insertion, and the sand is ejected from the cavity.

[0021] The outer tube can be described as an elongated hollow body of any cross-section. The cross-section can be, for example, circular, oval, triangular, rectangular, or polygonal. The outer tube preferably has a thin outer wall and open ends. The first open end allows the outer tube to be inserted section by section lengthwise into the ground.

[0022] The discharge unit is used to remove soil that has been collected in the outer pipe. When the outer pipe is inserted into the ground with its open end, soil enters the cavity through the open end. The discharge unit is movable within the cavity of the outer pipe to remove the soil.

[0023] For example, the ejection unit is a piston. The piston is also an elongated body that can be moved longitudinally within the outer tube. The piston can preferably be moved bidirectionally and continuously between a first position and a second position relative to the outer tube. Unlike the outer tube, however, the piston has at least one closed end face to push the soil out of the cavity of the outer tube.

[0024] The discharge unit can assume a first position, a second position, or any position between the first and second positions. In the second position, the discharge unit is positioned so that soil can be drawn into the cavity from the first end of the outer tube. To remove the soil from the cavity, the discharge unit is moved from the second position to the first position. 675.0001 DE

[0025] The fastening device described here could, for example, be an adapter that is first anchored in the ground, and then the object to be fixed is attached to the (second) end of the fastening device that protrudes from the ground. Alternatively, the fastening device could also be part of a bracket for the object to be fixed.

[0026] The outer tube can be made of metal or a hard plastic, for example, without any restrictions. The ejection unit can also be made of metal, plastic, or a natural material such as wood or cork.

[0027] In a typical application, the length of the ejection unit along its longitudinal axis is approximately 80 cm to 150 cm, with an outer tube diameter of approximately 1 cm to 5 cm. These dimensions can, of course, vary and be specified depending on the application. The longitudinal slot can be approximately one-third the length of the outer tube and positioned centrally within it. The range of motion of the ejection unit between its first and second positions, as it moves along the length of the outer tube, essentially corresponds to the length of the longitudinal slot.

[0028] The fastening device described here can, in all embodiments, include a return unit that moves the discharge unit from the first position to the second position, thus opening the cavity at the first end of the outer tube so that soil can be collected. The return unit can, for example, be an elastic element that moves the discharge unit from the first position to the second position by applying a compressive or tensile force. For example, the return unit could be a spring (tension or compression spring) or a rubber band. The return unit is attached at one end to the outer tube and at the other end to the discharge unit to effect the relative movement between the discharge unit and the outer tube when the discharge unit is moved from the first position to the second position.When the ejection unit is moved from the second position to the first position, or towards the first position, this movement occurs against the force of the return unit. During the movement of the ejection unit from the second position to the first position, the return unit is tensioned and stores energy. This energy is released when no external force acts on the ejection unit and holds it in the first position, thus moving the ejection unit back to the second position.

[0029] According to one embodiment, the first end is an open end, with the ejection unit arranged between the first end and the second end. In the first position, the ejection unit is located within the cavity but close to the first end, so that in the first position, soil can be drawn into the cavity via the first end, particularly the area of ​​the cavity between the first end and the ejection unit. When this space is filled with soil, the soil can push the ejection unit further away from the first end, creating space in the cavity for more soil.

[0030] According to one embodiment, the ejection unit has a handle, wherein the handle extends from the outer tube and wherein the handle is designed to move the ejection unit relative to the outer tube, for example from the first position to the second position and vice versa.

[0031] The handle is mechanically connected to the part of the ejection unit located in the cavity of the outer tube. This allows the operator to move the ejection unit within the cavity of the outer tube by operating the handle, thereby causing the ejection unit to move.

[0032] The handle could, for example, protrude laterally through a slot in the outer tube. However, it is also conceivable that the handle extends along the outer tube and protrudes from the other end of the outer tube.

[0033] According to a further embodiment, the ejection unit is a piston, wherein the piston is configured to move in a direction of movement extending along a longitudinal axis of the mounting device. 675.0001 DE

[0034] To fill the cavity of the outer tube with soil, the piston is moved from the first end of the outer tube towards the second end, either manually or by the pressure of the soil on the piston. To remove the soil from the cavity, the piston is moved via the handle back towards its initial position, i.e., towards the first end of the outer tube. This forces the soil out of the open first end of the outer tube.

[0035] According to another embodiment, the piston has a cross-sectional shape corresponding to the outer tube.

[0036] If the outer tube has a circular cross-section, the piston will also have a circular cross-section. The same principle applies to other cross-sectional shapes of the outer tube. The outer circumference or dimensions of the piston are slightly smaller than the inner circumference or dimensions of the outer tube to allow the piston to move as freely as possible within the tube and to minimize friction between the piston and the inside of the tube.

[0037] However, it is also conceivable that the cross-sectional shape of the piston differs from that of the outer tube. For example, the piston could have a cross-shaped cross-section, which is fundamentally independent of the cross-sectional shape of the outer tube. This design can minimize friction between the piston and the outer tube.

[0038] The piston, like the outer tube, has a first end and a second end. However, unlike the outer tube, at least the end of the piston facing the first end of the outer tube has a closed end face, enabling it to move soil out of the outer tube's cavity.

[0039] According to another embodiment, the piston is positioned near the first end in the first position and moves away from the first end when moving from the first position to the second position. When moving from the second position to the first position, the piston moves towards the first end. 675.0001 DE

[0040] According to another embodiment, the handle protrudes laterally from the outer tube.

[0041] The handle is mechanically connected to the ejection unit, either directly or indirectly, via a linkage and / or a lever, so that a movement of the handle is transferred to the ejection unit.

[0042] The handle can have a gripping surface that allows an operator to move the ejection unit relative to the outer tube. Various designs of the gripping surface are shown in the figures and described in relation to them.

[0043] According to another embodiment, the outer tube has a longitudinal slot which extends along the longitudinal axis of the fastening device, with the handle protruding radially from the longitudinal slot.

[0044] The longitudinal slot extends along the length of the mounting device, i.e., parallel to the central or longitudinal axis of the outer tube. This allows the handle to be moved within the longitudinal slot along the length of the outer tube between the first end and the second end (and vice versa), thus moving the ejection unit between the first and second positions (and vice versa).

[0045] By appropriately dimensioning the length of the longitudinal slot, it can be determined how far the ejection unit can be moved in the longitudinal direction of the outer pipe in order to release the cavity adjacent to the first end of the outer pipe and / or to eject soil taken up into the cavity.

[0046] According to another embodiment, the handle protrudes from the second end of the outer tube.

[0047] In this embodiment, it is not necessary to provide a longitudinal slot in the outer surface or wall of the outer tube because the handle is connected to the ejection unit via a linkage and extends through the cavity of the outer tube, partially protruding from the second end of the outer tube in both the first and second positions of the ejection unit. Thus, an operator can grasp the handle in any position of the ejection unit and move the ejection unit relative to the outer tube. In this embodiment, the handle protruding from the second end is dimensioned so that the object to be secured can be placed on the ground-fixed mounting device without colliding with the handle.

[0048] According to a further embodiment, the outer tube has a lateral opening between the first end and the second end. The discharge unit is arranged opposite this lateral opening. The discharge unit is designed to pivot about a pivot point, wherein in the second position the discharge unit is spaced away from the lateral opening and exposes the cavity, and wherein the discharge unit can be moved from the second position to the first position by pivoting the discharge unit towards the lateral opening, thereby conveying soil located in the cavity laterally out of the lateral opening.

[0049] In this configuration, the ejection unit performs a pivoting motion instead of moving along the longitudinal axis of the outer tube. The handle and the ejection unit are attached to the outer tube via a joint, and the ejection unit, together with the handle, can pivot or rotate around a pivot point of the joint. In the second position of the ejection unit, the cavity of the outer tube is free to receive soil when the mounting device is inserted into the ground. In this second position, the ejection unit rests against the inner wall of the outer tube, opposite the side opening. From this second position, the ejection unit is moved by a pivoting motion toward the side opening to push the soil out of the cavity through the side opening.

[0050] According to another aspect, an arrangement is specified which includes a fastening device as described herein and an object to be fastened. The object to be fastened can be mechanically fixed at the second end of the fastening device. 675.0001 DE

[0051] The item to be secured could be, for example, a parasol, but is not limited to that. It could also be, for example, a tent, camping furniture, or a clothesline.

[0052] The fastening device is fixed in the ground as described above, with the first end being inserted into the ground trench and a section of the fastening device, which connects to the second end of the outer tube, protruding from the ground. The object to be fastened is attached to this section adjacent to the second end of the outer tube. For this purpose, the object to be fastened can be slipped onto the second end of the outer tube. Additionally, the object to be fastened can be secured to the second end of the outer tube using a bolt, a screw connection, a clamp connection, or other types of mechanical fasteners.

[0053] Brief description of the drawings

[0054] In the following drawings, identical reference symbols refer to functionally and / or structurally identical or similar elements. They show:

[0055] Fig. 1 shows a schematic representation of a fastening device;

[0056] Fig. 2 shows a schematic representation of an outer tube of a fastening device;

[0057] Fig. 3 shows a schematic representation of an ejection unit of a fastening device;

[0058] Fig. 4 shows a schematic representation of a fastening device with the ejection unit in the first position and two variants of a handle;

[0059] Fig. 5 shows a schematic representation of a fastening device with the ejection unit in the second position and two variants of a handle;

[0060] Fig. 6 shows a schematic representation of an arrangement comprising a fastening device and an object to be fastened; 675.0001 DE

[0061] Fig. 7 shows a schematic representation of a fastening device;

[0062] Figs. 8 to 13 show a fastening device with differently designed handles.

[0063] Detailed description of the drawings

[0064] Fig. 1 shows a schematic representation of a fastening device 100. The fastening device 100 has an outer tube 110 and an ejection unit 120 (shown with dashed lines) arranged therein. The outer tube extends from a first end 111 to a second end 112 along a longitudinal axis 105 and contains a cavity 115. A longitudinal slot 114 extending along the longitudinal axis 105 is arranged in the wall or outer surface 113 of the outer tube 110. In this example, the ejection unit 120 is designed as a piston and is arranged in the cavity 115. A handle 121 is arranged outside the outer tube 110 and is connected to the piston of the ejection unit via the longitudinal slot 114. The handle 121 allows the piston of the ejection unit to be moved in both directions along the longitudinal axis 105 in the direction of movement 122.

[0065] When the ejection unit 120 is moved to the right, it exposes the cavity 115 adjacent to the first end 111. Thus, the outer tube 110 can take in soil via the first end 111 when it is inserted into the ground. When the outer tube is pulled out of the ground, the soil can be removed from the cavity 115 by moving the ejection unit 120 towards the first end 111 using the handle 121.

[0066] Fig. 2 shows the outer tube 110. The outer tube 110 extends longitudinally along the longitudinal axis 105, which lies between the first end 111 and the second end 112 and is bounded by the outer surface 113. A longitudinal slot 114 is formed in the outer surface 113. The first end 111 and the second end 112 are open surfaces.

[0067] Fig. 3 shows an ejection unit 120 in the form of a piston. A handle 121 is attached to the piston. The handle 121 can, for example, be screwed to the piston. (See 675.0001 DE)

[0068] To mount the fastening device 100, the handle can be removed from the piston so that the piston can be inserted into the cavity 115 of the outer tube. With the piston positioned appropriately in the cavity 115, the handle 121 can then be connected to the piston through the longitudinal slot 114.

[0069] Fig. 4 shows a representation of the mounting device 100 with the ejection unit 120 in the form of a piston, which is in the first position. In the first position, the ejection unit 120 is arranged near the first end 111 of the outer tube 110. The ejection unit 120 can be moved along the longitudinal slot 114 by means of the handle 121. An operator can grasp the handle 121 and thereby move the ejection unit 120 relative to the outer tube 110, with this movement proceeding from left to right and vice versa in the representation of Fig. 4.

[0070] Fig. 4 also shows an optional embodiment of a handle 121 A, which is arranged or attached to an end of the ejection unit 120 opposite the first end 111. The handle 121 and the alternative handle 121 A are alternatives, of which usually only one is implemented.

[0071] The handle 121 A protrudes from the second end 112 of the outer tube 110 in all possible positions of the ejection unit 120, so that an operator can grasp the handle 121 A and move the ejection unit 120.

[0072] Fig. 5 shows the mounting device 100 from Fig. 4 with the ejection unit 120 in the second position. It can be seen that in the second position, the ejection unit 120 exposes a section of the cavity 115 adjacent to the first end 111 of the outer tube 110. In this position of the ejection unit 120, soil can enter the cavity 115 through the openings at the first end 111 and be pressed into the ground.

[0073] Fig. 6 shows an exemplary application of the fastening device 100. An arrangement 1 comprises a fastening device 100 and a parasol 200. The fastening device 100 is inserted into the ground 10 at its first end, and the parasol 200 is attached to the second end 112. In this position, the 675.0001 DE

[0074] The parasol 200 can be mechanically fixed with the fastening device 100, for example using bolts, screws or a clamping connection.

[0075] The parasol 200, or more generally the object to be attached, can also be fixed to the fastening device in a manner other than shown in Fig. 6. In Fig. 6, the parasol 200 is attached to the outside of the fastening device 100. However, it should be noted that the parasol 200 can also be inserted into the inside of the fastening device 100. Other connection techniques are also conceivable at this point of connection. The crucial point is that the object to be attached is secured to the fastening device in order to withstand a certain degree of lateral forces (e.g., wind).If the object to be fastened is inserted into one end of the fastening device, a design of the fastening device with a lateral projection from the outer tube's outer surface can be advantageous, because then there is sufficient space in the area of ​​the second end of the fastening device to connect the object to be fastened to the fastening device at this second end.

[0076] Although the illustrations in Fig. 6 show a parasol 200, it should be understood that other objects relating to the ground 10 can also be attached and fixed using the fastening device 100.

[0077] Fig. 7 shows an alternative embodiment of the fastening device 100. The outer tube 110 has a lateral opening 116 in its outer surface 113. The fastening device 100 shown here is used in the same way as already described with reference to the illustrations in Figs. 1 to 6. The outer tube 110 is inserted into the ground with its first end 111, soil enters the cavity 115, then the outer tube 110 is pulled out of the ground and the soil is removed from the cavity 115.

[0078] In the example shown in Fig. 7, the ejection unit 120 is rotatably mounted on a pivot point 123 with respect to the outer tube 110. The handle 121 is moved along the movement 122 towards the outer tube 110, causing the ejection unit 120 to perform a rotational or pivoting movement about the pivot point 123 and to move in the lateral direction. 675.0001 DE

[0079] Opening 116 is moved. This causes the soil from the cavity 115 to be transported through the side opening 116.

[0080] It is conceivable to combine a piston-shaped ejection unit 120, as shown in Figures 1 to 5, with an outer tube 110 having a lateral opening 116. The piston can be wedge-shaped and taper towards the first end 111 of the outer tube 110 and towards the inner wall opposite the lateral opening 116. When a piston designed in this way is moved from the second position (from the retracted position, moved away from the first end 111) towards the first position (into the extended position, moved towards the first end 111), it displaces the soil laterally out of the lateral opening 116 and not necessarily towards the first end 111.

[0081] Figures 8 to 13 show possible embodiments of the handle 121 based on the variant of the fastening device 100 shown in Figures 1 to 5. The structure and function of the fastening device 100 are not described again here; instead, reference is made to the description above. Figures 8 to 13 show a piston-shaped ejection unit 120, which in the first position is located in the outer tube 110. The illustration in each of Figures 8 to 13 shows the fastening device 100 in a side view and a front view.

[0082] In Fig. 8, the handle 121 is designed in a pin-like shape and is attached to the circumferential surface of the ejection unit 120. The handle 121 projects radially from the circumferential surface of the ejection unit 120 and extends through the longitudinal slot 114 of the outer tube 110. In this way, the handle 121 can be gripped by an operator, and the ejection unit 120 can be moved relative to the outer tube 110. In the variant shown in Fig. 8, the handle 121 is, for example, rotationally symmetrical.

[0083] Fig. 9 shows an alternative embodiment of the handle 121. The handle 121 has a handpiece that extends both longitudinally and circumferentially along the outer tube. Such a handpiece makes it easier for an operator to grasp the handle 121 and move the ejection unit 120 even against resistance in the outer tube 110. The front view shows that the handpiece extends circumferentially at least far enough to cover the longitudinal slot in the outer tube.

[0084] Fig. 10 shows a variant of the handle 121 with a further enlarged handpiece. In this variant, the handpiece extends longitudinally over a large part of the longitudinal slot, for example over half of the longitudinal slot, and circumferentially, the handpiece extends over the upper half of the outer tube.

[0085] Building upon Fig. 10, Fig. 11 shows a variant of the handle 121 in which the handpiece extends over the entire length of the longitudinal slot and is comparable in the circumferential direction to the extent shown in Fig. 10. In the variant shown in Fig. 11, the handpiece can extend so far along the longitudinal direction of the outer tube that it completely covers the longitudinal slot in every possible position of the ejection unit between the first position and the second position (inclusive). This reduces the risk of an operator trapping part of their hand between the handpiece and the longitudinal slot during use.

[0086] Fig. 12 shows a variant of the handle 121 in which the handpiece is designed as a sleeve and completely surrounds the outer tube in the circumferential direction. The extension of the handpiece in the longitudinal direction of the mounting device corresponds to the extension in the variant shown in Fig. 10.

[0087] Fig. 13 shows a variant in which the handpiece, as in Fig. 12, is designed as a sleeve and completely surrounds the outer tube in the circumferential direction, wherein, in contrast to the variant in Fig. 12, the sleeve extends longitudinally along the outer tube to such an extent that the sleeve completely covers the longitudinal slot in every possible position of the ejection unit. 675.0001 DE

[0088] Reference symbol list

[0089] 1. Arrangement

[0090] 10 Soil, Earth

[0091] 100 fastening device

[0092] 105 Longitudinal axis

[0093] 110 outer pipe

[0094] 111 first end

[0095] 112 second end

[0096] 113 Surface area

[0097] 114 longitudinal slots

[0098] 115 cavity

[0099] 116 side opening

[0100] 120 Ejection unit, piston or lever

[0101] 121 handle

[0102] 121 A optional design of the handle

[0103] 122 Direction of movement

[0104] 123 Pivot point

[0105] 200 fixed object, for example parasol

Claims

675. 0001 DE Patent claims 1. Fastening device (100) for fastening objects (200) with respect to the ground (10), the fastening device (100) comprising: an outer tube (110) with a first end (111) and a second end (112) and a cavity (115) extending between the first end (111) and the second end (112); an ejection unit (120); wherein the ejection unit (120) is arranged in the cavity (115); wherein the ejection unit (120) is in the cavity (115) with respect to the outer tube (110) is movable along a direction of movement (122) between a first position and a second position; wherein the ejection unit (120) is arranged in the second position such that a section of the cavity (115) adjoining the first end (111) is released to receive soil into the cavity (115) starting from the first end (111); wherein the ejection unit (120) is movable from the second position to the first position in order to convey the soil received into the cavity (115) out of the cavity (115).

2. Fastening device (100) according to claim 1, wherein the first end (111) is an open end; wherein the ejection unit (120) is arranged between the first end (111) and the second end (112); wherein the ejection unit (120) is arranged in the first position within the cavity (115), but close to the first end (111), so that in the first position soil can be taken into the cavity via the first end (111).

3. Fastening device (100) according to claim 1 or 2, wherein the ejection unit (120) has a handle (121); wherein the handle (121) extends from the outer tube (110); wherein the handle (121) is configured to move the ejection unit (120) relative to the outer tube (110). 675.0001 DE 4. Fastening device (100) according to one of the preceding claims, wherein the ejection unit (120) is a piston; wherein the piston is configured to be moved in a direction of movement (122) which extends along a longitudinal axis (105) of the fastening device.

5. Fastening device (100) according to claim 4, wherein the piston has a cross-sectional shape corresponding to the outer tube.

6. Fastening device (100) according to claim 4 or 5, wherein the piston is positioned in the first position near the first end (111) and moves from the first position to the second position away from the first end. (111 ) moves away and moves towards the first end (111 ) when moving from the second position to the first position.

7. Fastening device (100) according to one of claims 3 to 6, wherein the handle (121) projects laterally out of the outer tube (110), or wherein the outer tube (110) has a longitudinal slot (114) which extends along the longitudinal axis (105) of the fastening device (100) and the handle (121) projects radially out of the longitudinal slot (114).

8. Fastening device (100) according to one of claims 3 to 6, wherein the handle (121) protrudes from the second end (112) of the outer tube.

9. Fastening device (100) according to one of claims 1 to 3, wherein the outer tube (110) is connected between the first end (1 11 ) and the second end (112) has a lateral opening (1 16); wherein the ejection unit (120) is arranged opposite the lateral opening (116); wherein the ejection unit (120) is configured to perform a pivoting movement about a pivot point (123), wherein in the second position the ejection unit (120) is spaced apart from the lateral opening (116) and releases the cavity (1 15) and wherein the 675.0001 DE The discharge unit (120) can be moved from the second position to the first position by pivoting the discharge unit (120) towards the side opening (116) and thereby conveying soil located in the cavity (115) laterally out of the side opening (116).

10. Arrangement (1) comprising: a fastening device (100) according to any one of claims 1 to 9; and an object (200) to be fastened; wherein the object (200) to be fastened can be mechanically fixed to the second end (112) of the fastening device (100). 19

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