System for releaseably connecting a first device housing with a second device housing and connection arrangement

1. A system for releaseably connecting a first device housing with a second device housing, comprising:

at least three connection units,

wherein each of the connection units comprises a headed bolt and a corresponding keyhole-shaped recess configured for receiving the headed bolt in such a manner that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section,

wherein at least one of the connection units comprises a locking mechanism configured for locking the bolt in the second section of the recess, and

wherein the locking mechanism comprises a movable locking element which is movable with respect to the headed bolt and configured to hold the headed bolt in the second section of the recess in a locking position;

wherein the locking mechanism comprises a locking catch configured to catch the headed bolt in the second section of the recess.

2. The system of claim 1 , wherein the locking mechanism comprises a handle for moving the locking element from the locking position into an unlocking position.

3. The system of claim 1 , wherein the locking element is preloaded by a spring element such that the locking element is resiliently held in the locking position.

4. The system of claim 1 , wherein the locking catch is configured to catch or hold the locking element in the locking position.

5. The system of claim 1 , wherein the locking catch is formed as a ramp or nose with a rising side and an edge.

6. The system of claim 1 , wherein the locking catch is attached to or integrally formed with the locking element.

7. The system of claim 1 , wherein the locking element is configured as a slider transversely movable with respect to the bolt axis.

8. The system of claim 1 , wherein the first section of the keyhole-shaped recess is wider than the second section and wider than a biggest protruding cross sectional part of the headed bolt.

9. The system of claim 1 , wherein the second section of the keyhole-shaped recess is smaller than the biggest protruding cross sectional part of the headed bolt.

10. The system of claim 1 , wherein the headed bolt is configured as mushroom headed bolt.

11. A connection arrangement, comprising a first device housing and a second device housing coupled to the first device housing with a releasable connecting system, the connecting system comprising:

at least three connection units arranged at an interface between the first device housing and the second device housing,

wherein each of the connection units comprises a headed bolt and a corresponding keyhole-shaped recess configured for receiving the headed bolt in such a manner that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section,

wherein at least one of the connection units comprises a locking mechanism configured for locking the bolt in the second section of the recess, and

wherein the locking mechanism comprises a movable locking element which is movable with respect to the headed bolt and configured to hold the headed bolt in the second section of the recess in a locking position,

wherein the locking mechanism comprises a locking catch configured to catch the headed bolt in the second section of the recess.

12. The arrangement of claim 11 , wherein the bolt is fixed to the first device housing.

13. The arrangement of claim 11 , wherein the keyhole-shaped recess is formed in the second housing.

14. A system for releaseably connecting a first device housing with a second device housing, comprising:

at least three connection units,

wherein each of the connection units comprises a headed bolt and a corresponding keyhole-shaped recess configured for receiving the headed bolt in such a manner that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section,

wherein at least one of the connection units comprises a locking mechanism configured for locking the bolt in the second section of the recess,

wherein the locking mechanism comprises a flexible buffer element arranged in the second section of the keyhole-shaped recess, and

wherein the buffer element is configured to load the headed bolt with a frictional force to hold the headed bolt in the second section of the recess in a locking position.

15. The system of claim 14 , wherein the buffer element is configured more flexible than the keyhole-shaped recess.

16. A connection arrangement, comprising a first device housing and a second device housing coupled to the first device housing with a releasable connecting system, the connecting system comprising:

at least three connection units arranged at an interface between the first device housing and the second device housing,

wherein each of the connection units comprises a headed bolt and a corresponding keyhole-shaped recess configured for receiving the headed bolt in such a manner that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section,

wherein at least one of the connection units comprises a locking mechanism configured for locking the bolt in the second section of the recess,

wherein the locking mechanism comprises a flexible buffer element arranged in the second section of the keyhole-shaped recess, and

wherein the buffer element is configured to load the headed bolt with a frictional force to hold the headed bolt in the second section of the recess in a locking position.