Floor washing robot

• US 8,001,651 B2
• Filed: 06/19/2008
• Issued: 08/23/2011
• Est. Priority Date: 06/19/2008
• Status: Expired due to Fees

• Current Assignee: National Taipei University Of Technology
• Original Assignee: National Taipei University Of Technology
• Inventors: Chang, Wen-Chung
• Primary Examiner(s): Redding; David A
• Application Number:
  US12/142,088
• Publication Number:
  US 20090314318A1
• Time in Patent Office: 1,160 Days
• Field of Search: 153/19, 153/274, 153/39
• US Class Current: 15/319
• CPC Class Codes: A47L 11/305 the tools being disc brushes
• CPC Class Codes: A47L 11/40 Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
• CPC Class Codes: A47L 2201/00 Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Abstract

A floor washing robot is disclosed. The robot includes: a control unit for controlling a power source to drive at least three omnidirectional wheels and at least one washing disc to rotate to wash a floor; a water spray device for spraying water; and a vacuum device for vacuuming waste water or dirt. The floor washing robot can be moved freely in any direction to improve the cleaning effect.

Claims

1. A floor washing robot, comprising:

a machine body, having a circumferential surface;

at least three omnidirectional wheels, each having an outer roller and a plurality of inner rollers, and the outer roller being equiangularly and pivotally coupled to the circumferential surface of the machine body and rotated with respect to the machine body, and the plurality of inner rollers being pivotally coupled to the outer roller and rotated with respect to the outer roller;

at least one washing disc, pivotally coupled to the machine body and rotated with respect to the machine body, and the at least one washing disc having a plurality of brush structures installed downwardly;

a water spray device, installed to the machine body and including at least one water spray pipeline, and the at least one water spray pipeline being extended to the at least one washing disc;

a vacuum device, installed to the machine body and including at least one vacuum pipeline, and the vacuum pipeline having a slit, wherein the vacuum pipeline is a ring shape, and the slit is disposed along the vacuum pipeline, and wherein each omnidirectional wheel is disposed inside the scope of the vacuum pipeline;

a power source, installed to the machine body and coupled to each omnidirectional wheel and the at least one washing disc respectively; and

a control unit, installed to the machine body and electrically and respectively coupled to the water spray device, the vacuum device and the power source.

2. The floor washing robot of claim 1, wherein the at least one washing disc includes a gear, and the power source is coupled to the at least one washing disc through the gear of the at least one washing disc.

3. The floor washing robot of claim 2, wherein the gear of the at least one washing disc includes a hollow shaft, and the at least one water spray pipeline of the water spray device is passed through the hollow shaft of the at least one washing disc and extended to the at least one washing disc.

4. The floor washing robot of claim 1, wherein the plurality of brush structures of the at least one washing disc are arranged in a spiral form.

5. The floor washing robot of claim 1, wherein the power source includes at least three omnidirectional wheel motors and a washing disc motor, and each omnidirectional wheel motor is coupled to each omnidirectional wheel respectively, and the washing disc motor is coupled to the at least one washing disc.

6. The floor washing robot of claim 1, wherein the control unit is a control chip.

7. The floor washing robot of claim 1, wherein the machine body includes a lid, an upper baseboard and a lower baseboard, and the lid, and the upper baseboard and the lower baseboard are stacked sequentially with each other, and the circumferential surface includes an upper circumferential surface and a lower circumferential surface, and the upper circumferential surface is disposed at the upper baseboard, and the lower circumferential surface is disposed at the lower baseboard.

8. The floor washing robot of claim 7, wherein the outer roller of each omnidirectional wheel is equiangularly and pivotally coupled to the lower circumferential surface of the lower baseboard of the machine body;

the at least one washing disc is pivotally coupled to the lower baseboard of the machine body;

the water spray device, the vacuum device and the power source are installed to the upper baseboard of the machine body; and

the control unit is installed to the lid of the machine body.

9. The floor washing robot of claim 8, wherein each omnidirectional wheel is pivotally coupled to the lower circumferential surface of the lower baseboard of the machine body through a U-shaped fixed block.

10. The floor washing robot of claim 7, further comprising a plurality of obstacle sensors equiangularly and respectively installed to the lid of the machine body and electrically coupled to the control unit.

11. The floor washing robot of claim 7, further comprising an auto-charging sensor installed to the lid of the machine body and electrically coupled to the control unit.

12. The floor washing robot of claim 11, wherein the auto-charging sensor further includes a camera.