A device for axially connecting two pipe elements (2, 3), in particular two pipe elements (2, 3) with non-identical external diameters, comprising: - a coupling means with a first coupling means part, having a cylindrical shape in the assembled state of said device, which can be assigned to a first pipe element, a second coupling means part having a cylindrical shape in the assembled state of said device, which can be assigned to a second pipe element to be connected axially to said first pipe element, and an intermediate connecting part which can be arranged between the two coupling means parts (5, 6), wherein said two coupling means parts (5, 6) can be connected or are connected to each other axially via said intermediate connecting part, characterized in that - on each of said first and second coupling means parts (5, 6) a first articulation element is formed, which is formed as an engaging element for engaging in a receiving region of a second articulation element, and/or a second articulation element is formed, which is formed as a receiving element comprising a receiving region for at least partly receiving an engaging element of a first articulation element, - on said intermediate connecting part a first articulation element is formed, which is formed as an engaging element for engaging in a receiving region of a second articulation element, and/or a second articulation element is formed, which is formed as a receiving element comprising a receiving region for at least partly receiving an engaging element of a first articulation element, - wherein a first articulation element formed on said first or second coupling means part (5, 6) is configured to cooperate with a second articulation element formed on said intermediate connecting part, in particular in a positive manner, forming an articulated connection between said first or second coupling means part (5, 6) and said intermediate connecting part, or a second articulation element formed on said first or second coupling means part (5, 6) is configured to cooperate with a first articulation element formed on said intermediate connecting part, in particular in a positive manner, forming an articulated connection between said first or second coupling means part (5, 6) and said intermediate connecting part. - a coupling means with a first coupling means part, having a cylindrical shape in the assembled state of said device, which can be assigned to a first pipe element, a second coupling means part having a cylindrical shape in the assembled state of said device, which can be assigned to a second pipe element to be connected axially to said first pipe element, and an intermediate connecting part which can be arranged between the two coupling means parts (5, 6), wherein said two coupling means parts (5, 6) can be connected or are connected to each other axially via said intermediate connecting part, characterized in that - on each of said first and second coupling means parts (5, 6) a first articulation element is formed, which is formed as an engaging element for engaging in a receiving region of a second articulation element, and/or a second articulation element is formed, which is formed as a receiving element comprising a receiving region for at least partly receiving an engaging element of a first articulation element, - on said intermediate connecting part a first articulation element is formed, which is formed as an engaging element for engaging in a receiving region of a second articulation element, and/or a second articulation element is formed, which is formed as a receiving element comprising a receiving region for at least partly receiving an engaging element of a first articulation element, - wherein a first articulation element formed on said first or second coupling means part (5, 6) is configured to cooperate with a second articulation element formed on said intermediate connecting part, in particular in a positive manner, forming an articulated connection between said first or second coupling means part (5, 6) and said intermediate connecting part, or a second articulation element formed on said first or second coupling means part (5, 6) is configured to cooperate with a first articulation element formed on said intermediate connecting part, in particular in a positive manner, forming an articulated connection between said first or second coupling means part (5, 6) and said intermediate connecting part.