Vehicle (S), provided with a loading space (L), which comprises a movement device (M1), comprising: a support body (F); a barrier (1), associated with the support body (F) and movable between an active position, in which it protrudes from the support body (F) to interact with an object to be displaced, and an inactive position, in which it is not able to interact with an object to be displaced: a first connecting rod (10), associated with the support body (1) rotatably about a first axis of rotation (X1); a second connecting rod (20), associated with the support body (1) rotatably about a second axis of rotation (X2) parallel to the first axis of rotation (X1); an arm (30), rotatably connected to the first connecting rod (10) and the second connecting rod (20) at a third axis of rotation (X3) and at a fourth axis of rotation (X4) rotatably parallel to the first and the second axis of rotation (X1,X2); wherein the distance between the first axis of rotation (X1) and the third axis of rotation (X3) is equal to the distance between the second axis of rotation (X2) and the fourth axis of rotation (X4).