| 摘要 |
<p>A hydraulic floor hinge used for supporting a door on a support floor while hydraulically absorbing undesirable mechanical impact in the case of opening or closing the odor, thus allowing the door to be smoothly operated is disclosed. This floor hinge is particularly designed to allow a user to easily and simply reach and operate the pressure adjusting screw for a hydraulic hinge actuating unit when necessary, with the pressure adjusting screw being enclosed within a covered casing to be normally protected from external impurities. In the floor hinge of this invention, an internally-threaded hole (14) is formed on the top cover (12) of the casing at a position corresponding to the pressure adjusting screw (13) enclosed within the covered casing. An annular step (19) is formed on the outside surface of the cover (12) along the edge of the internally-threaded hole (14). A screw cap (18) is normally tightened to the threaded hole (14) at the outside of the cover (12) so as to close the hole (14) and to protect the pressure adjusting screw (13) from external impurities, with the externally-threaded part (17) of the cap (18) movably engaging with the internally-threaded hole (14) and the slotted head (16) of the cap (18) being closely seated on the annular step (19) while being exposed to the outside of the cover (12).</p> |
