Patent ID: 7594450

Claim:
A quick-releasing linear actuator, comprising: a motor means comprising a motor and a base connected to the motor, wherein the motor is provided with a worm penetrating into the base; a transmission means having a screw penetrating out of the base, a fixing sleeve connected to the screw, a worm gear connected to the fixing sleeve and engaged with the worm within the base, and a telescopic tube threadedly connected to the screw; a clutch means provided within the base of the motor means, wherein the clutch means comprises a clutch base fixedly connected to the screw and a clutch connected to the fixing sleeve and axially movable with respect to the fixing sleeve; and a pulling arm means comprising a pulling arm pivotably connected to the outside of the base of the motor means, wherein the pulling arm is provided with poking portions corresponding to the clutch for controlling the clutching action between the clutch and the clutch base, wherein the screw of the transmission means is provided with a radial hole, an elongated groove is provided on one side of the clutch base of the clutch means, and an insertion pin is inserted into the radial hole and received in the elongated groove.