Fastening element

1. A single-piece fastening element for fastening cleaning implements to a cleaning cart, the cleaning cart having supporting tubes with unequal height/width ratios, the single-piece fastening element comprising:

a holding section for fastening the fastening element and at least first and second receptacle-elements, the holding section having a generally C-shaped element surrounding an elliptically-shaped opening and adapted for clamping the single-piece fastening element around a supporting tube section of the cleaning cart such that, when the holding section is engaged around the supporting tube section, loading of at least one of the first and second receptacle-elements avoids detachment of the single-piece fastening element from the cleaning cart;

wherein each of the first and second receptacle-elements is adapted to releasably engage a corresponding fastening section connected to a corresponding cleaning implement such that the corresponding cleaning implement is releasably connected to the cleaning cart;

wherein the first and second receptacle elements are oriented so that cleaning implements are attachable in at least two different planes,

wherein the fastening element has a single piece construction that is made of a single material, and

wherein the first receptacle has a frustum structure with undercuts with a smaller end face of the first receptacle element being turned toward the holding section.

2. The fastening element according to claim 1 , wherein the two different planes in which the cleaning implements are attachable are two orthogonal planes.

3. The fastening element according to claim 1 wherein the first receptacle element is configured so that cleaning implements are attachable in two different planes.

4. The fastening element according to claim 1 , wherein the first receptacle element is configured so that cleaning implements are attachable in two orthogonal planes.

5. The fastening element according to claim 1 , wherein the second receptacle element is formed by a wall that is oriented perpendicular to the smaller end face of the first receptacle element, at least some sections of the wall, viewed in cross section, having a trapezoidal structure.

6. The fastening element according to claim 1 , wherein the holding section is constructed as a snap-in hook.

7. The fastening element according to claim 6 , wherein the holding section has an opening and a wall, and two arc-shaped sections adjacent to the wall.

8. The fastening element according to claim 7 wherein the wall has faces and the arc-shaped sections are turned toward each other, the faces and arc-shaped sections being configured to reinforce a friction-fit connection of the holding section or supplement the friction-fit connection by a positive-fit connection.

9. The fastening element according to claim 8 , wherein the faces of the wall and the arc-shaped sections are coated with a high-friction material.

10. The fastening element according to claim 1 , wherein the first receptacle element has a larger end face with a catch element.

11. The fastening element according to claim 10 , wherein the catch element is formed by a raised section.

12. The fastening element according to claim 1 , wherein the corresponding cleaning element is one of a mop holder for receiving a handle or a mop-head plate of a cleaning tool that forms the corresponding fastening section.

13. The fastening element according to claim 1 , wherein holding section has a wall and an opening, with the wall having a catch element on the side turned away from the opening.

14. The fastening element according to claim 13 , wherein the catch element is formed by a raised section.