Title:
MANUAL ADJUSTMENT DEVICE FOR ADJUSTING SWING ANGLE OF ELECTRIC FAN ACCORDING TO IDENTIFICATION
Document Type and Number:
WIPO Patent Application WO/2023/024249
Kind Code:
A1
Abstract:
Disclosed is a manual adjustment device for adjusting a swing angle of an electric fan according to an identification. In the manual adjustment device for adjusting a swing angle of an electric fan according to an identification, a plastic clamping and positioning mechanism and a radial sliding fit device are provided between a plastic identification disc (1) and a plastic angle-adjusting knob (2), a second notch (15) is formed in the wall body of a sliding block (9), a spring (27) is provided in a first inner cavity (7) of a large gear (6), and an arc-shaped convex strip (28) passes through a first notch (14) and the second notch (15) to be in elastic tight contact with the inter-tooth wall surface of a central gear (12), so that a lateral displacement of the wall body of an uneven body of the sliding block caused by a difference between torques of a user or different releasing positions in operation is avoided, and a phenomenon that a sliding block rack crank is clamped in an identification value connection area of the plastic identification disc (1) for air blowing is eliminated.
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Inventors:
JIANG LIANGJIAN (CN)
Application Number:
PCT/CN2021/127366
Publication Date:
March 02, 2023
Filing Date:
October 29, 2021
Export Citation:
Assignee:
JIANG LIANGJIAN (CN)
International Classes:
F04D25/10; F04D27/00
Foreign References:
| CN112983874A | 2021-06-18 | |||
| CN101424272A | 2009-05-06 | |||
| CN2355146Y | 1999-12-22 | |||
| CN113153797A | 2021-07-23 | |||
| JPH02233897A | 1990-09-17 | |||
| US20180044943A1 | 2018-02-15 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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