Adjustable support column for false floor has large foot standing on floor surface, carrying internally threaded tube engaging threaded upper tube with nut and large foot at top held by nut

摘要

The large foot at the bottom (1) has a joggle (1a) and a raised center. It has a central aperture (1b) accommodating a metal dowel (2) with a large hexagonal head (2a) resting on the floor. A vertical tube (7) with an internal thread (7a) is held by the dowel. An upper tube (3) with an external thread (3a) and a locking nut (4) has a top nut (5) supporting a dished (6a) upper foot (6) with a central aperture (6b). The upper tube has a hexagonal head (3b).