Automatic floor mopping device with driving worm arranged transversely

• US 10,092,154 B2
• Filed: 04/26/2016
• Issued: 10/09/2018
• Est. Priority Date: 11/28/2013
• Status: Active Grant

• Current Assignee: Yuyao Jingcheng High&New Technology Co., Ltd.
• Original Assignee: Yuyao Jingcheng High&New Technology Co., Ltd.
• Inventors: Chen, Guozhang
• Primary Examiner(s): Lo, Weilun
• Application Number:
  US15/139,316
• Publication Number:
  US 20160235269A1
• Time in Patent Office: 896 Days
• Field of Search: 15 98
• CPC Class Codes: A47L 11/28 Floor-scrubbing machines, motor-driven A47L11/29 takes precedence
• CPC Class Codes: A47L 11/4061 Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
• CPC Class Codes: A47L 11/4066 Propulsion of the whole machine
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4072 Arrangement of castors or wheels
• CPC Class Codes: A47L 2201/04 Automatic control of the travelling movement; Automatic obstacle detection

Abstract

An automatic mopping device with a driving worm arranged transversely includes an upper covering plate, an outer shell, a transmission member, an electrical component, a bottom cover, a chassis and a mopping ring assembly, and further includes a gear ring securing turntable, a mounting base and a motor cover. The overall height of the mopping device is between 60-64 mm, and the transmission member includes 2 wheels whose width is between 8-15 mm. The transmission member further comprises a perpendicularly arranged worm A and a horizontally arranged worm wheel B, a cylindrical spur gears A, B, C, a duplex gear and an internal gear ring. The duplex gear includes a cylindrical spur gear D and a planet gear. The worm wheel A and worm B are respectively meshed with the driving worm. The gear ring securing turntable is immovably connected to the internal gear ring, while the internal gear ring is meshed with the planet gear. The chassis is immovably connected to the gear ring securing turntable. The present invention has the following advantages: it is not that sensitive to the softness/hardness or the roughness/smoothness of the floor due to its relatively narrow wheels, thus avoiding breakdown, and its overall height is low enough to operate automatically underneath bed and table.

Claims

1. An automatic mopping device including an upper cover plate, an outer shell, a transmission member, an electrical component, a bottom cover, a chassis, a mopping ring assembly, a gear ring securing turntable, a mounting base, and a motor cover;

the transmission member comprising a driving mechanism, a mopping advancing mechanism and a mopping ring rotating mechanism;

the driving mechanism includes a driving motor, a motor shaft, and a driving worm;

wherein the driving worm is integrated with and arranged at the front end of the motor shaft and is coaxial therewith, the motor shaft and the driving worm are arranged horizontally;

the mopping advancing mechanism includes a driving shaft and two wheels which are connected to the two ends of the driving shaft respectively, the mopping advancing mechanism further includes a first worm wheel meshed with the driving worm, the first worm wheel is perpendicularly arranged under the driving worm and mounted on the driving shaft via its central bore;

the electric component includes a charging system and a switch assembly;

the mopping ring rotating mechanism is arranged on a same plane with the driving mechanism, the mopping ring rotating mechanism comprises a second worm wheel, a first cylindrical spur gear, a second cylindrical spur gear, a third cylindrical spur gear, a duplex gear and an internal gear ring, the duplex gear includes a fourth cylindrical spur gear and a planet gear, and the planet gear is placed below the fourth cylindrical spur gear, the second worm wheel is horizontally arranged on one side of the driving worm and meshed with the driving worm, the first cylindrical spur gear, the second cylindrical spur gear, the third cylindrical spur gear, and the fourth cylindrical spur gear are successively meshed one by one, while the planet gear is meshed with the internal gear ring;

the mounting base is arranged above the transmission member, the gear ring securing turntable is arranged above both the mounting base and the internal gear ring, the gear ring securing turntable is secured to the internal gear ring through a tight fit, the motor cover is arranged beneath the transmission member;

a first shaft, a second shaft, a third shaft, and a fourth shaft are all arranged on the mounting base and pressed into the mounting base;

the first shaft, the second shaft, the third shaft, and the fourth shaft pass through and form a clearance fit with the first cylindrical spur gear, the second cylindrical spur gear, the third cylindrical spur gear and the duplex gear, respectively, and are rotatable together;

screw perforations are arranged on the outer side of the gear ring securing turntable;

fixing rods are arranged on the chassis;

the number of the screw perforations and the fixing rods is same; and

the chassis and the gear ring securing turntable are connected together via the fixing rods and the screw perforations.

2. The mopping device according to claim 1, wherein the overall height of the mopping device is between 60-64 mm, and the width of each wheel is between 8-15 mm.

3. The mopping device according to claim 1, wherein the outer shell is arranged above the gear ring securing turntable, the electrical component is immovably arranged at a middle portion of the outer shell, the upper cover plate is arranged above the electrical component.

4. The mopping device according to claim 1, wherein the mopping ring assembly is arranged beneath the chassis, the chassis includes six small magnets and eight steel balls, the mopping ring assembly further includes six iron sheets, the six small magnets are evenly arranged on the chassis, and the six iron sheets are evenly arranged on the mopping ring assembly, positions of the small magnets correspond to those of the iron sheets respectively, so that the mopping ring assembly and the chassis are attracted together by permanent magnets.

5. The mopping device according to claim 4, wherein the eight steel balls are embedded into and evenly distributed on the chassis and circumferentially located along the outer periphery of the mounting base.