Glass-wiping device having a suction apparatus

Patent metadata

Field	Value
Publication number	US-9743816-B2
Application number	US-201314390622-A
Country	US
Kind code	B2
Filing date	Apr 3, 2013
Priority date	Apr 5, 2012
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A suction apparatus and a glass-wiping device with the suction apparatus. The glass-wiping device sucks onto the surface of a glass via the suction apparatus. The suction apparatus comprises a suction cup unit ( 1 ). The suction cup unit ( 1 ) comprises an inner suction cup ( 11 ) and an outer suction cup ( 12 ). The inner suction cup ( 11 ) is arranged on the inside of the outer suction cup ( 12 ), where a chamber on the inside of the inner suction cup ( 11 ) forms an inner negative pressure chamber ( 13 ) via vacuum suction, and where a chamber between the inner and outer suction cups ( 11 and 12 ) forms an outer negative pressure chamber ( 14 ) via vacuum suction. The glass-wiping device sucks onto the surface of the glass via the inner negative pressure chamber ( 13 ) and/or the outer negative pressure chamber ( 14 ). The glass-wiping device sucks onto the surface of the glass via the suction apparatus, is capable of ensuring sufficient vacuum pressure, and prevents the phenomenon of the glass-wiping device falling from the surface of the glass.

First claim

The invention claimed is:

1. A glass-wiping device with a suction apparatus, comprising a moving unit ( 2 ), a cleaning unit ( 3 ), a driver unit ( 4 ), a control unit ( 5 ) and the suction apparatus, wherein the moving unit ( 2 ) and the cleaning unit ( 3 ) are provided at the bottom of the glass-wiping device ( 8 ), the control unit ( 5 ) is connected to the driver unit ( 4 ), the driver unit ( 4 ) controls the moving of the moving unit ( 2 ) under control of the control unit ( 5 ); the glass-wiping device adheres onto the surface of the glass via the suction apparatus including a suction cup unit ( 1 ), characterized in that, the suction cup unit ( 1 ) comprises an inner suction cup ( 11 ) and an outer suction cup ( 12 ), the inner suction cup ( 11 ) is provided on the inside of the outer suction cup ( 12 ), wherein a cavity on the inside of the inside of the inner suction cup ( 11 ) forms an inner negative pressure chamber via vacuum suction, and a cavity between the inner and outer suction cups forms an outer negative pressure chamber via vacuum suction.

2. The glass-wiping device of claim 1 , characterized in that, the glass-wiping device adheres onto the surface of the glass via the inner negative pressure chamber ( 13 ) and/or the outer negative pressure chamber ( 14 ).

3. The glass-wiping device of claim 2 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ), the bottom case of the glass-wiping device and the glass.

4. The glass-wiping device of claim 2 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ) and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ) and the glass.

5. The glass-wiping device of claim 2 , characterized in that, the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are coaxially arranged.

6. The glass-wiping device of claim 1 , characterized in that, the vacuum degree of the inner negative pressure chamber is equal to or greater than that of the outer negative pressure chamber.

7. The glass-wiping device of claim 6 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ), the bottom case of the glass-wiping device and the glass.

8. The glass-wiping device of claim 6 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ) and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ) and the glass.

9. The glass-wiping device of claim 6 , characterized in that, the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are coaxially arranged.

10. The glass-wiping device of claim 1 , characterized in that, the suction apparatus also comprises a vacuum pump and gas-guide tubes, wherein the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are respectively connected to the vacuum pump through the gas-guide tubes.

11. The glass-wiping device of claim 10 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ), the bottom case of the glass-wiping device and the glass.

12. The glass-wiping device of claim 10 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ) and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ) and the glass.

13. The glass-wiping device of claim 10 , characterized in that, the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are coaxially arranged.

14. The glass-wiping device of claim 1 , characterized in that, the suction apparatus also comprises a vacuum pump and a gas-guide tube, wherein the inner suction cup ( 11 ) is connected to the vacuum pump through the gas-guide tube.

15. The glass-wiping device of claim 14 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ), the bottom case of the glass-wiping device and the glass.

16. The glass-wiping device of claim 14 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ) and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ) and the glass.

17. The glass-wiping device of claim 14 , characterized in that, the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are coaxially arranged.

18. The glass-wiping device of claim 1 , characterized in that, when only the inner suction cup ( 11 ) is sealed with the surface of the glass, the glass-wiping device adheres onto the surface of the glass via the inner negative pressure chamber ( 13 ); when only the outer suction cup ( 12 ) is sealed with the surface of the glass, the inner negative pressure chamber ( 13 ) is communicated with the outer negative pressure chamber ( 14 ) to form a big negative pressure chamber, and the glass-wiping device adheres onto the surface of the glass via the big negative pressure chamber.

19. The glass-wiping device of claim 18 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ), the bottom case of the glass-wiping device and the glass.

20. The glass-wiping device of claim 18 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ) and the glass; the outer negative pressure chamber ( 14 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the outer suction cup ( 12 ) and the glass.

21. The glass-wiping device of claim 18 , characterized in that, the inner suction cup ( 11 ) and the outer suction cup ( 12 ) are coaxially arranged.

22. The glass-wiping device of claim 1 , characterized in that, the inner negative chamber ( 13 ) is positioned in a closed space enclosed by the inner suction cup ( 11 ), the bottom base of the glass-wiping device and the glass; the outer negative pressure chamber ( 14 ) is positioned i

Assignees

• Ecovacs Robotics Co Ltd

Inventors

• Lv Xiaoming

Classifications

• A47L1/02 Primary

  Power-driven machines or devices · CPC title

• A47L2201/00

  Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation · CPC title

• F16B47/00

  Suction cups for attaching purposes; Equivalent means using adhesives {(devices using adhesives, suction or magnetism for hanging or supporting pictures or the like A47G1/17; vacuum work holders B25B11/005; anchoring of ships using suction B63B21/27; suction cups for handling glass B65G49/061; load-engaging elements for cranes using suction means B66C1/02)} · CPC title