| 摘要 |
PURPOSE: A screw rod holder for tuning an RF filter is provided to improve working efficiency by rotating a screw rod without separating a fixing nut from a cover plate. CONSTITUTION: An elastic fastening nut(33m) includes a lower nut unit(33g), an upper nut unit(33f), and a connection unit. The screw rod passes through the lower nut unit and the upper nut unit. The lower nut unit is fixed to the upper side of the cover plate. A female thread of the lower nut unit is combined with a male thread of the screw rod. The connection unit connects the lower nut unit and the upper nut unit. |
