Angle adjustment mechanism for fan head

Abstract

The purpose of the present invention is to provide a fan head angle adjustment mechanism, which can easily adjust the pitch angle and rotation angle of the fan head, and reliably fix the fan head at a predetermined pitch angle. The fan head angle adjustment mechanism of the present invention only makes slight changes on the traditional clamping piece and inserting piece, so that the pitch angle of the fan head can be better fixed, and the pitch angle of the fan head can be adjusted very conveniently The present invention also detects the rotation angle of the fan head in real time, and converts the rotation angle into a voltage value and compares it with a predetermined target voltage value, so that when the fan head rotates to a limit angle, the reverse rotation of the fan head is controlled by a forward and reverse switch , to achieve the purpose of reciprocating rotation of the fan head within a predetermined angle range; in summary, the present invention simultaneously realizes the adjustment of the pitch angle and rotation angle of the fan head, and has good practicability.

Description

technical field [0001] The invention belongs to the technical field of fans, and in particular relates to a fan head angle adjustment mechanism. Background technique [0002] The fan head of the traditional floor fan simply uses bolts to adjust its pitch angle. The specific structure is as follows: the top of the bracket is provided with two vertical clamping pieces, and the insert piece at the bottom of the fan head is inserted into the two clamping pieces. between, and then use bolts to pass through the first clamping piece, the insertion piece, and the second clamping piece in turn, and screw the nut on the other end, and adjust the position of the nut to loosen the clamping piece or clamp the insertion piece When the piece is loosened, the pitch angle of the fan head can be adjusted. [0003] The above-mentioned fan head angle adjustment mechanism has the following disadvantages: since the contact surface between the insert piece and the clamp piece is flat, it is diffi...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned fan head angle adjustment mechanism has the following disadvantages: since the contact surface between the insert piece and the clamp piece is flat, it is difficult to ensure that the clamp piece clamps the insert piece only by the cooperation of nuts and bolts. The fan head suddenly changes from the state of flat blowing or upward blowing to the state of downward blowing

[0004] In addition, the fan head of the traditional floor fan can swing left and right. The swing structure is a set of worm gear system and connecting piece. The worm gear system drives the swinging rotation. The angle range is determined by the length of the connecting piece and the eccentric radius. The length and eccentric radius cannot be changed at will, so the angle cannot be adjusted

The above-mentioned swing structure is not flexible enough in use, sometimes only one or two people blow the fan, but the swing angle of the fan is too large, most of the time it is blowing in a place where there is no one, wasting the wind power

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