| 摘要 |
An electric window curtain driving device is equipped with a driving motor (9), the driving motor is in transmission connection with a belt winding machine (7) through a gear-box, the electric window curtain driving device is mounted in a casing (15), the belt winding machine is fixed at the upper portion of the inner chamber of the casing, a rotating shaft of the belt winding machine is equipped with a belt winding machine toothed ring (7a), the driving motor is fixed below the belt winding toothed ring, and the driving motor is in transmission connection with the belt winding machine toothed ring by a worm wheel (3), a second gear (2) and an output gear (1) which are arranged in the gear-box. The electric window curtain driving device is characterized in that a worm (8) of an output shaft of the driving motor meshes with a large-diameter wheel of the worm wheel, a small-diameter wheel of the worm wheel meshes with a large-diameter wheel of the second gear, a small-diameter wheel of the second gear meshes with a third gear, and the output gear of the gear-box which is coaxial with the third gear meshes with a portion of one side of the belt winding machine toothed ring close to the lower portion. The utility model is convenient in integral installation, the transmission parts in the casing are compact in structure and reasonable in arrangement, further the utility model is small in volume, can reduce the occupied space of the whole electric window curtain driving device in a wall body. |
