Abstract: The present invention discloses a multiple shaking-head structure for a fan, comprising a front part of the fan, a shaking-head upper cover, a synchronous motor, a gear stand and a fixed frame, wherein the front part of the fan consists of a motor front cover, a motor and a motor rear cover; a first elastic clamp which has a first dentation structure is positioned on the motor rear cover; first springs and a first ball tack are positioned in the shaking-head upper cover, wherein the first ball tack is matched with the first dentation structure; the synchronous motor is positioned on a synchronous motor support, and a driving gear is fixed on the synchronous motor; a circle of annular gear is positioned in a disc above the gear stand, and the driving gear is engaged with the annular gear of the gear stand; a second elastic clamp is positioned below the disc of the gear stand and has a second dentation structure; and a second spring and a second ball tack are positioned on the side surface of the fixed frame, w

Abstract: The invention discloses a fan housing with encircling rings, comprising a front housing and a rear housing, wherein the front and rear housings are respectively provided with a circular encircling ring which is used for mutual fixing; multiple protruding ends are provided on the inner wall of the front encircling ring, while multiple slots are correspondingly provided on the outer wall of the rear encircling ring, so that the front and rear housings can be fastened together through match of the protruding ends and the slots; the front housing is provided with a handling cover; a fixing device, which comprises a draw bar, a spring and a pressing plate, is provided at one slot of the rear encircling ring.

Abstract: The present invention discloses a multiple shaking-head structure for a fan, comprising a front part of the fan, a shaking-head upper cover, a synchronous motor, a gear stand and a fixed frame, wherein the front part of the fan consists of a motor front cover, a motor and a motor rear cover; a first elastic clamp which has a first dentation structure is positioned on the motor rear cover; first springs and a first ball tack are positioned in the shaking-head upper cover, wherein the first ball tack is matched with the first dentation structure; the synchronous motor is positioned on a synchronous motor support, and a driving gear is fixed on the synchronous motor; a circle of annular gear is positioned in a disc above the gear stand, and the driving gear is engaged with the annular gear of the gear stand; a second elastic clamp is positioned below the disc of the gear stand and has a second dentation structure; and a second spring and a second ball tack are positioned on the side surface of the fixed frame, w

Abstract: The invention discloses a fan housing with encircling rings, comprising a front housing and a rear housing, wherein the front and rear housings are respectively provided with a circular encircling ring which is used for mutual fixing; multiple protruding ends are provided on the inner wall of the front encircling ring, while multiple slots are correspondingly provided on the outer wall of the rear encircling ring, so that the front and rear housings can be fastened together through match of the protruding ends and the slots; the front housing is provided with a handling cover; a fixing device, which comprises a draw bar, a spring and a pressing plate, is provided at one slot of the rear encircling ring.