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2. 发明公开

US20240151236A1 MANUAL-ADJUSTMENT-TYPE DEVICE FOR ADJUSTING SWING ANGLE OF ELECTRIC FAN ACCORDING TO IDENTIFICATIONS 审中-公开
公开(公告)号：US20240151236A1
公开(公告)日：2024-05-09
申请号：US18548941
申请日：2021-06-11
申请人： Liangjian JIANG
发明人： Liangjian JIANG
IPC分类号： F04D29/00 , F04D25/06 , F16H37/12
CPC分类号： F04D29/00 , F16H37/12 , F04D25/06
摘要： A manual-adjustment-type device for adjusting the swing angle of an electric fan according to identifications, the device comprising an identification disc, an angle adjustment knob and a sliding slot-sliding block crank adjustment mechanism. A limiting slot-limiting block mechanism is arranged between the identification disc and the angle adjustment knob; an inner wall of a second inner cavity of the sliding block is provided with a rack, an outer wall of the sliding block is provided with graded recessed and protruding bodies, and the center distance between the graded recessed and protruding bodies is equal to the pitch of the rack; a first limiting sliding slot is provided with a notch, and a spring-setter device is arranged at the notch and is in elastic setting contact with the graded recessed and protruding bodies; the lower end face of the sliding block is provided with an overlapped protruding block, and the overlapped protruding block is arranged in an extending sliding slot arranged at an edge of a second limiting sliding slot of a limiting cover, so as to form a sliding fit therebetween; and an inverted protruding block-through hole snap-fitting contact combined structure is arranged between the angle adjustment knob and a bidirectional connection block. Thus the manual-adjustment-type device for adjusting the swing angle of an electric fan according to identifications is formed; and by means of the device, gear damage can be avoided, the angle can be adjusted accurately and equally according to identifications of the identification disc, and the angle adjustment knob is prevented from becoming loose and falling off.

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