ELECTRIC FAN WITH IMPEDIMENT BUFFERING

摘要

An electric fan includes a fan body having a fan shaft coupled to a fan motor. A fan motor bracket is connected to a fixing portion of the fan motor. A swivel shaft is coupled to the fan motor bracket. A sleeve is mounted around the swivel shaft and is coupled to an output shaft of a swivel motor. The sleeve includes an inner periphery having grooves. The swivel shaft receives an elastic element extending in a radial direction of the swivel shaft. A ball is mounted to an end of the elastic element. The ball is biased by the elastic element to be partially received in one of the grooves. If the fan body is impeded during the swiveling movement, the ball moves inward and compress the elastic element, disengaging the swivel shaft from the sleeve to reduce damage to the sleeve and the output shaft of the motor.

主权项

1. An electric fan with impediment buffering, comprising:
a fan body including a plurality of blades coupled to a fan shaft, with the fan shaft coupled to a fan motor, with the fan body further including a fan motor bracket connected to a fixing portion of the fan motor; and an impediment buffering device including a swivel shaft coupled to the fan motor bracket and a sleeve mounted around the swivel shaft, with the sleeve coupled to an output shaft of a swivel motor, with the sleeve including an inner periphery having a plurality of grooves, with the swivel shaft receiving an elastic element extending in a radial direction of the swivel shaft, with a ball mounted to an end of the elastic element, and with the ball biased by the elastic element to be partially received in one of the plurality of grooves.