#$%^&*AU2020102188A420201022.pdf#####Abstract The utility model relates to the technical field of mechanical technology for the aged and the disabled, and illustrates a multifunction guide cane, comprising the main rod, the base and the alarm. Two driving wheels, a guide wheel and a detection wheel set are arranged beneath the base. Each driving wheel is equipped with a driving motor, and a velocity regulator is provided on the handle. The detection wheel set comprises the detection rod, the spring and the roller. A Hall sensor is placed on the top of the detection rod. The detection rod is assembled on the base vertically and the spring is between the roller and the baseboard. The base is equipped with a magnetic block beside the detection rod. The front, left and right ultrasonic sensors electrically connected with the control system are installed in front, left and right of the base. A system controlling the guide cane is installed on the base. The utility model can recognize obstacles and ground pits in all directions, with adjustable driving forces. In general, it is easier to use, cheaper to manufacture and more efficient to avoid obstacles.1/4 21 20 //c c aA / Fig. I
