Patent ID: 9215961
Filing Date: 2015-12-22
Classification: A47L

Abstract:
1. An automatic floor cleaning machine comprising: a base including a disc having an opening disposed in the disc, with a protruded edge formed around a circumference of the opening, with a power unit disposed on the disc; an upper cover engaged on the base, with an accommodating space formed between the upper cover and the base; a supporting seat engaged on the disc of the base and received in the accommodating space between the upper cover and the base, with the supporting seat including a top plate and a circumferential portion extending downwardly from a circumference of the top plate, with a motor base disposed on the top plate, with the circumferential portion mounted around the protruded edge of the disc, with a convoluted space formed by the circumferential portion and the opening of the disc; a random-turn driving unit including a motor and a drive wheel set, with the motor fixed on the motor base of the supporting seat and electrically connected to the power unit, with the motor including an output shaft protruded from a bottom of the motor, with the drive wheel set disposed inside the convoluted space and including a lower wheel base and an upper wheel base, with the lower wheel base including a lower seat and a shaft rotatably disposed on the lower seat, with a driven gear disposed on the shaft, with a wheel disposed at each of two ends of the shaft, with a drive gear meshed with the driven gear and including a driving hole therein, with the upper wheel base including an upper seat coupled to the lower seat and receiving the drive gear, with a shaft hole formed in the upper seat and in alignment with the driving hole of the drive gear, with the output shaft extending through the shaft hole and engaged in the driving hole of the drive gear; and a floor cleaning plate engaged to a bottom of the base and including a hole in a center of the floor cleaning plate and in communication with the opening of the disc, with Velcro provided on a bottom of the floor cleaning plate and extending outwardly from two sides of the floor cleaning plate, with dedusting papers adhering to the Velcro.