Electric tailgate strut for automobiles

An electric tailgate strut for automobiles, comprising

• a telescopic rod, wherein the telescopic rod comprises an outer tube and an inner tube, wherein the outer tube is allowed to move along an axial direction of the inner tube,
• a gas spring, wherein the gas spring is arranged inside the telescopic rod and is comprised of a thread tube with a thread on an outer wall, a piston, and a piston rod, wherein a distance between the piston rod and the inner tube remains constant, wherein the piston is located at a free end of the piston rod, wherein a seal guide assembly is provided between the piston rod and the thread tube,
• a nut, wherein the nut is adapted to the thread tube and is located at an end of the inner tube,
• a driving unit, and
• a tailgate connection assembly, wherein the tailgate connection assembly is located at two ends of the telescopic rod and is configured for connection between the telescopic rod and a tailgate,
• wherein there is no self-locking between the nut and the thread tube, wherein the nut serves to limit a circumferential position of the telescopic rod, wherein a circumferential movement between the outer tube and the inner tube is impossible, wherein
• an inner wall of the outer tube is provided with first grooves evenly distributed along an axis of the outer tube, wherein an outer wall of the inner tube is provided with second grooves evenly distributed along an axis of the inner tube, wherein an outer wall of the nut is provided with a first convex strip adapted to the first groove and a second convex strip adapted to the second groove.