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1. (WO2017041351) NOVEL ELECTRIC SUPPORTING LEG

Pub. No.:    WO/2017/041351    International Application No.:    PCT/CN2015/092798
Publication Date: Fri Mar 17 00:59:59 CET 2017 International Filing Date: Tue Oct 27 00:59:59 CET 2015
IPC: B60S 9/02
Applicants: WU, Zhiqiang
吴志强
Inventors: WU, Zhiqiang
吴志强
TU, Xincai
凃新才
YANG, Minrui
杨旻瑞
Title: NOVEL ELECTRIC SUPPORTING LEG
Abstract:
Provided are novel electric supporting legs, comprising a left supporting leg, a right supporting leg, a middle shaft for connecting the left supporting leg and the right supporting leg and an electric driving mechanism. The electric driving mechanism comprises an electric motor, a shell (6), a front swing plate (8) and a poking rod mechanism. An output shaft (51), an output shaft gear (5), an input shaft (25) and an input shaft multi-speed-ratio gear (2) are installed in the shell. An electric motor shaft is coupled to a bevel pinion (1). The bevel pinion meshes with conical teeth of the input shaft multi-speed-ratio gear. A high-speed transmission gear (3) and a low-speed duplicate gear assembly (4) are installed on the front swing plate. The poking rod mechanism makes the front swing plate swing left and right with the input shaft as a fulcrum, so that the output shaft gear is in drive connection with the input shaft multi-speed-ratio gear through the high-speed transmission gear or the low-speed duplicate gear assembly, and the electric motor shaft provides power for the output shaft at different speed ratios. The input shaft multi-speed-ratio gear and the low-speed duplicate gear assembly are manufactured through powder metallurgy and pressure casting. The electric supporting legs are rational in structure and save on labour when operating.