| 摘要 |
The present invention proposes a locking mechanism for poles. The locking mechanism includes a support rod, inserted into a first unit shaft at a fir st end thereof and locked to a second unit shaft at a second end thereof, wi th threads formed around the outer circumferential surface thereof; and a pr essure locking unit movably engaged with the threads of the support rod and having longitudinal slits formed to open in one direction and at least two p ressure parts formed in a longitudinal direction. The locking pressure of th e pressure locking unit is imposed on the unit shafts at multiple longitudin ally spaced points, thus dispersing or distributing the locking strength in the longitudinal direction and increasing both the locking strength and the resistance against both longitudinal compressive force and longitudinal tens ile force, thereby preventing the locked unit shafts from suddenly slipping towards each other. |
