Device for adjusting the height of a vehicle body

The invention relates to a device (1) for adjusting the height of a vehicle body, comprising two components, which can be moved longitudinally relative to each other, and a movement thread (2), which is arranged between said components. The movement thread comprises a partial thread (4) which is designed as a spindle (6) paired with a first component and a partial thread (5) which is designed as a spindle nut (7) paired with the other component. The partial threads (4, 5) are designed to be axially movable relative to each other by a rotational drive (9). The device also comprises a locking device (12) which bridges the movement thread (2) in at least three longitudinal positions (I, II, III) and which comprises an axially fixed locking ring (13) that is arranged on the spindle (6) in a rotatable manner and comprises locking cams (15) distributed over the circumference and a shifting gate (14) that is rigidly connected to the spindle nut (7) in an axial manner, receives the locking cams (15), and comprises lo