Closure device with closure parts which can be placed against each other

1. A closure device, comprising

a first closure part which includes a closure element with a base body and at least one first locking portion arranged on the base body, and

a second closure part, which includes a base element and at least one second locking portion arranged on the base element,

wherein the first closure part and the second closure part can be placed against each other along a placement direction,

wherein in a closed position the first closure part and the second closure part are placed against each other such that the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part are in engagement with each other,

wherein for releasing the first closure part and the second closure part from each other, the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part can be brought out of engagement with each other by rotating the closure element relative to the second closure part about an axis of rotation,

wherein the second closure part includes a blocking element with a blocking portion which in the closed position is arranged radially inside the at least one first locking portion with respect to the axis of rotation and blocks the engagement of the at least one first locking portion and the at least one second locking portion with each other, and

wherein at least one of

the at least one first locking portion protrudes from the base body along the axis of rotation, and

the at least one first locking portion includes a first latching protrusion and the at least one second locking portion includes a second latching protrusion, wherein in the closed position the first latching protrusion and the second latching protrusion are positively held in engagement with each other.

2. The closure device according to claim 1 , wherein the closure element of the first closure part includes two first locking portions arranged on the base body of the closure element on different sides of the axis of rotation and the second closure part includes two second locking portions, wherein in the closed position the first locking portions and the second locking portions are positively in engagement with each other.

3. The closure device according to claim 1 , wherein the closure element includes at least one first magnetic element and the second closure part includes at least one second magnetic element, wherein the at least one first magnetic element and the at least one second magnetic element are configured to cooperate in a magnetically attracting way on placement of the first closure part and the second closure part against each other.

4. The closure device according to claim 1 , wherein the at least one first locking portion is rigidly arranged on the base body of the at least one closure element and the at least one second locking portion is rigidly arranged on the base element of the at least one second closure part.

5. A closure device, comprising

a first closure part which includes a closure element with a base body and at least one first locking portion arranged on the base body, and

a second closure part, which includes a base element and at least one second locking portion arranged on the base element,

wherein the first closure part and the second closure part can be placed against each other along a placement direction,

wherein in a closed position the first closure part and the second closure part are placed against each other such that the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part are in engagement with each other,

wherein for releasing the first closure part and the second closure part from each other, the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part can be brought out of engagement with each other by rotating the closure element relative to the second closure part about an axis of rotation,

wherein the second closure part includes a blocking element with a blocking portion which in the closed position is arranged radially inside the at least one first locking portion with respect to the axis of rotation and blocks the engagement of the at least one first locking portion and the at least one second locking portion with each other,

wherein the at least one closure element of the first closure part includes two first locking portions arranged on the base body of the at least one closure element on different sides of the axis of rotation,

the at least one second closure part includes two second locking portions, wherein in the closed position the first locking portions and the second locking portions are positively in engagement with each other,

wherein the first locking portions each include a first latching protrusion, wherein the first latching protrusion of one of the first locking portions points radially to the inside and the first latching protrusion of the other one of the first locking portions points radially to the outside, and

wherein in the closed position the first latching protrusions each are in engagement with a second latching protrusion of an associated second locking portion of the at least one second closure part.

6. A closure device, comprising

a first closure part which includes a closure element with a base body and at least one first locking portion arranged on the base body, and

a second closure part, which includes a base element and at least one second locking portion arranged on the base element,

wherein the first closure part and the second closure part can be placed against each other along a placement direction,

wherein in a closed position the first closure part and the second closure part are placed against each other such that the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part are in engagement with each other,

wherein for releasing the first closure part and the second closure part from each other, the at least one first locking portion of the closure element and the at least one second locking portion of the second closure part can be brought out of engagement with each other by rotating the closure element relative to the second closure part about an axis of rotation,

wherein the second closure part includes a blocking element with a blocking portion which in the closed position is arranged radially inside the at least one first locking portion with respect to the axis of rotation and blocks the engagement of the at least one first locking portion and the at least one second locking portion with each other,

wherein the blocking element in the closed position is arranged on a side of the at least one first locking portion facing away from the at least one second locking portion, and

wherein at least one of

in the closed position the blocking portion is arranged radially inside the at least one first locking portion,

the blocking element is adjustable relative to the base element of the at least one second closure part, and

the blocking element is magnetically pretensioned in the direction of a blocking position for blocking the engagement of the at least one first locking portion and the at least one second locking portion with each other.