Patent ID: 8297116

Claim:
A quick removable position sensor, installed onto a steering wheel of a motor vehicle, and comprising: a transmission mechanism, for performing a turning movement; an angular sensor, with an end coupled to the transmission mechanism, for receiving a turning signal outputted by a turning of the transmission mechanism; and a casing, for wrapping the transmission mechanism and the angular sensor, such that the components in the casing can perform the turning movement and receive the turning signal, wherein the transmission mechanism comprises a first transmission gear and a second transmission gear, and the first transmission gear comprises two semi-circular transmission gears, and a first snap portion and a second snap portion separately disposed on a side of the semi-circular transmission gears, and wherein the second transmission gear includes gear teeth formed at an external periphery of the second transmission gear and engaged with and stacked onto gear teeth formed at an external periphery of the first transmission gear respectively.