Electric supporting rod

An electric supporting rod, comprising:

• a driving unit, comprising a first outer cylinder and a driver disposed in the first outer cylinder, wherein an opening is defined in one end of the first outer cylinder, the driver comprises a transmission slot disposed on one end thereof that faces the opening, the driver comprises a plurality of positioning holes surrounding the transmission slot, and a plurality of elastic latching hooks is disposed on an inner wall of the first outer cylinder and located between the opening and the transmission slot, wherein each of the elastic latching hooks is protruding from the inner wall in a radial inward direction;
• and
• an actuating unit, comprising a second outer cylinder and a transmission screw rod sheathed in the second outer cylinder, wherein the second outer cylinder comprises an insertion part disposed on one end thereof, the transmission screw rod comprises a passive end protruding from the insertion part, and a plurality of connection pieces and a plurality of positioning columns extend from the insertion part and surround the passive end;
• wherein the insertion part is inserted in the opening, the passive end is engaged with the transmission slot, each of the connection pieces is correspondingly latched with each of the elastic latching hooks to longitudinally lock the driving unit and the actuating unit, and each of the positioning columns is correspondingly inserted in each of the positioning holes to limit a radial movement of the driving unit relative to the actuating unit.