Abstract: A telescopic rod contains a first element, and a second element, and a locking mechanism. The first element is in the form of a hollow tube with an interior wall. The second element is arranged slidingly along a longitudinal axis within the first element. The locking mechanism is coupled with the second element to lock the relative position of the second element with regard to the first element. The locking mechanism includes a clamp washer to be moved between a locking position and an unlocked position it is located in an angular position axis. An angle of the clamp wash in the unlocked position with regard to the longitudinal is smaller than that in the locking position. An edge of the clamp washer meshes with the interior wall in the locking position, so that a frictional connection is formed between the edge and the interior wall.

Abstract: An object guide having a variable motion path includes a connecting seat, a first motion unit, a second motion unit, an adjustment unit and a drive unit. The adjustment unit is disposed on the connecting seat, and the second connecting portion of the first connecting arm and the fourth connecting portion of the second connecting arm are disposed at the same position, the first adjustment portion of the first adjustment arm and the second adjustment portion of the second adjustment arm are also located at the same position and simultaneously moved by the adjustment unit. Therefore, simply adjusting the adjustment unit can simultaneously adjust the first adjustment portion and the second adjustment portion to the straight line position, the outward curvature position, or the inward curvature position, which make the adjustment convenient, and the displacement curvatures for moving the object are asymmetrical.