A connection device for connecting a first component to a second component of an orthopedic device. The connection device includes a first swivel element for arranging on the first component and a second swivel element for arranging on the second component. The first adjustment element is arranged on the first swivel element the adjustment element having a first contact surface. The second swivel element has a second contact surface, wherein the first swivel element is arranged on the second swivel element such that it can be swivelled about a swivel axis, and the first adjustment element is arranged and designed in such a way that the first contact surface lies flat on the second contact surface.