Driving device

A driving device used for driving a swing member, the driving device comprising:

• a driving power source;
• a power transmission assembly, driven by the driving power source;
• a screw assembly, comprising a nut and a screw rod screwed with each other, the screw rod being defined with a longitudinal direction and a radial direction perpendicular to the longitudinal direction, the screw rod comprising one end for connecting to the swing member;
• and
• a clutch assembly, arranged between the power transmission assembly and the screw assembly, the nut being operated by the clutch assembly to connect to or release the power transmission assembly along the radial direction;
• wherein the clutch assembly comprises a cage arranged in the power transmission assembly, a first elastic member and a second elastic member;
• the nut comprises a first extending segment and a second extending segment, the first extending segment comprises a first stopping portion, the second extending segment comprises a second stopping portion, the first elastic member sleeves the first extending segment, the second elastic member sleeves the second extending segment so that the first elastic member is disposed between the first stopping portion and one side of the cage for elastically supporting, and the second elastic member is disposed between the second stopping portion and another side of the cage for elastically supporting, the nut is driven by an elastic force caused by the first elastic member and the second elastic member to engage the power transmission assembly along the radial direction via the clutch assembly;
• wherein, in the screw assembly, the nut, the clutch assembly and the power transmission assembly are mutually interfered with each other in the radial direction, so that the nut is engaged with the power transmission assembly, the power transmission assembly is driven by the driving power source when the nut is connected with the power transmission assembly, so that the nut is driven by the power transmission assembly to move the screw rod along the longitudinal direction.

A driving device used for driving a swing member, the driving device comprising:

• a driving power source;
• a power transmission assembly, driven by the driving power source;
• a screw assembly, comprising a nut and a screw rod screwed with each other, the screw rod defined with a longitudinal direction and a radial direction perpendicular to the longitudinal direction, the screw rod comprising a one end for connecting to the swing member;
• and
• a clutch assembly, arranged between the power transmission assembly and the screw assembly, the nut being operated by the clutch assembly to connect to or release the power transmission assembly along the radial direction;
• wherein the clutch assembly comprises a cage arranged in the power transmission assembly, a first elastic member and a second elastic member;
• the nut comprises a first extending segment and a second extending segment, the first extending segment comprises a first stopping portion, the second extending segment comprises a second stopping portion, the first elastic member sleeves the first extending segment, the second elastic member sleeves the second extending segment so that the first elastic member is disposed between the first stopping portion and one side of the cage for elastically supporting, and the second elastic member is disposed between the second stopping portion and another side of the cage for elastically supporting, the nut is driven by an elastic force caused by the first elastic member and the second elastic member to engage the power transmission assembly along the radial direction via the clutch assembly;
• wherein in the screw assembly, the nut, the clutch assembly and the power transmission assembly overlap each other in the radial direction, so that the nut is engaged with the power transmission assembly, the power transmission assembly is driven by the driving power source when the nut is connected with the power transmission assembly, so that the nut is driven by the power transmission assembly to move the screw rod along the longitudinal direction.

A driving device used for driving a swing member, the driving device comprising:

• a driving power source;
• a power transmission assembly, driven by the driving power source;
• a screw assembly, comprising a nut and a screw rod screwed with each other, the screw rod defined with a longitudinal direction and a radial direction perpendicular to the longitudinal direction, the screw rod comprising a one end for connecting to the swing member;
• and
• a clutch assembly, arranged between the power transmission assembly and the screw assembly, the nut being operated by the clutch assembly to connect to or release the power transmission assembly along the radial direction;
• wherein in the nut can connect to or release the power transmission assembly by moving the screw assembly relative to the power transmission assembly along the longitudinal direction, the power transmission assembly is driven by the driving power source when the nut is connected with the power transmission assembly, so that the nut is driven by the power transmission assembly to move the screw rod along the longitudinal direction;
• wherein the clutch assembly comprises a cage arranged in the power transmission assembly, a first elastic member and a second elastic member;
• the nut comprises a first extending segment and a second extending segment, the first extending segment comprises a first stopping portion, the second extending segment comprises a second stopping portion, the first elastic member sleeves the first extending segment, the second elastic member sleeves the second extending segment so that the first elastic member is disposed between the first stopping portion and one side of the cage for elastically supporting, and the second elastic member is disposed between the second stopping portion and another side of the cage for elastically supporting, the nut is driven by an elastic force caused by the first elastic member and the second elastic member to engage the power transmission assembly along the radial direction via the clutch assembly.