Electric fan

Abstract

The invention relates to an electric fan. The electric fan comprises a first bracket, a second bracket, a fastener and a limiting member, wherein the first bracket is fixedly connected to a body; thesecond bracket is fixedly connected to a fan head, and is rotatably connected to the first bracket through a hinge shaft; the fastener is used for fixing the second bracket on the hinge shaft; the limiting member is connected to the first bracket and located between the first bracket and the fastener, and is used for limiting the distance between the fastener and the first bracket; the second bracket is limited between the first bracket and the limiting member to be connected with the limiting member on the first bracket; and the first limiting member is located between the first bracket and the fastener, and limits the distance between the fastener and the first bracket, so that the fastener fixes the position of the second bracket. Therefore, the torque for locking the second bracket isensured, and for the electric fans of the same model, the torque for locking the second bracket is stable.

Description

technical field [0001] The invention relates to the technical field of electric fans, in particular to an electric fan. Background technique [0002] At present, the electric fan mainly consists of three parts: the head assembly, the fuselage and the support assembly. The body is mainly composed of marbles, torsion springs and springs. The torsion springs and springs are prone to mechanical fatigue during use, which will cause the positioning of the pitch mechanism to fail or be damaged, and the assembly process is also relatively complicated. In the prior art, gaskets + rotating shafts + bolts are used to lock the brackets for installing the motor casing and fan blade after adjusting the pitch angle. When the bolts are manually locked, the torque is difficult to control, and sometimes the torque is too large , Sometimes the torque is too small. When the torque is too large, the contact between the bracket and the fuselage is too tight, and it is difficult to adjust the pit...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that it is difficult to control the torque for locking the bracket on which the motor case and fan blades are installed, so as to provide an electric motor that can ensure the torque for locking the bracket. fan

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