Patent attributes
A clamping base for holder is provided, comprising: a base, a clamping element, and a counteracting element. The base comprises a sliding track within, for installing and allowing the clamping element to slide linearly; an opening and a guiding groove disposed oppositely and parallel to slide direction; and a plurality of hook blocks at intervals disposed on outside wall of the guiding groove. The counteracting element is fixed inside the base. Assembly of the base and counteracting element forms an L-shaped profile. The clamping element extends a sliding strip, installed inside the slide track so that the clamping element moves towards or away from counteracting element. To lock a position after moving the clamping element, a fastening block is fixed to the sliding strip through the guiding groove. A wrench element is coupled to the fastening block and a buckle ring. The buckle ring can engage the hook blocks.
