Patent attributes
A retractable bar is provided to include an inner tube and an outer tube sleeved onto the inner tube. A positioning assembly has a sliding block movably disposed in the outer tube, a locating pin axially inserted in a guiding slot of the sliding block and abutted against an abutment portion of the sliding block, and a knob connected to the sliding block through a linking member for driving the sliding block to move. By this way, when the sliding block is driven by the linking member to move along an axial direction of the outer tube, the locating pin will be pushed by the abutment portion of the sliding block to disengaged from a locating hole of the inner tube, such that the inner and outer tubes can be moved relative to each other, thereby achieving adjustment of the length of the retractable bar.
