Remaining water suction device

• US 10,736,477 B2
• Filed: 09/05/2017
• Issued: 08/11/2020
• Est. Priority Date: 09/13/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Seongho, Kim, Jong Seok, Yang, Inhyung
• Primary Examiner(s): Keller, Brain D
• Application Number:
  US15/695,603
• Publication Number:
  US 20180070784A1
• Time in Patent Office: 1,071 Days
• Field of Search: 15320, 153001, 15344, 153271
• CPC Class Codes: A47L 1/05 Hand apparatus with built-in electric motors
• CPC Class Codes: A47L 11/38 Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
• CPC Class Codes: A47L 11/4011 Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees
• CPC Class Codes: A47L 7/0009 with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
• CPC Class Codes: A47L 7/0023 Recovery tanks for cleaning machines A47L11/4013

Abstract

A remaining water suction device may include: a suction nozzle, a water separation chamber configured to be connected to a discharge port of the suction nozzle and provided with a water discharge port and an air discharge port, and a buffer tank configured to be connected to the water discharge port and store water separated from the water separation chamber. The remaining water suction device may include a water transfer pump configured to transfer the water stored in the buffer tank, a water storage tank configured to store the water transferred through the water transfer pump, a suction fan configured to provide a suction force to the air discharge port, and a suction motor configured to drive the suction fan.

Claims

1. A water suction device comprising:

a suction nozzle that includes a suction port and a discharge port;

a water separation chamber coupled to the discharge port of the suction nozzle, and the water separation chamber to include a water discharge port and an air discharge port;

a buffer tank coupled to the water discharge port, and the buffer tank to store water separated from the water separation chamber;

a water transfer pump configured to transfer the water from the buffer tank;

a water storage tank configured to store the water from the buffer tank that is transferred by the water transfer pump;

a suction fan configured to provide a suction force to the air discharge port;

a suction motor configured to drive the suction fan; and

an air discharge pipe coupled the water separation chamber and an interior of the buffer tank;

wherein the air discharge pipe includes a water guide pipe to guide water from the water separation chamber into the buffer tank, and an air guide pipe to guide air inside the buffer tank to the water separation chamber, and

wherein the buffer tank is smaller than the water storage tank.

2. The water suction device of claim 1, wherein the water separation chamber includes a partition wall disposed at least partially in front of the discharge port of the suction nozzle, and the partition wall to guide a fluid introduced into the suction nozzle to at least a side of the water suction device associated with the water discharge port.

3. The water suction device of claim 2, wherein the partition wall is downwardly inclined toward the side of the water suction device associated with the water discharge port.

4. The water suction device of claim 1, wherein an inner surface of the water separation chamber is inclined downwardly in an outer direction.

5. The water suction device of claim 1, wherein the buffer tank includes a water effusion port coupled to the water transfer pump via a water pipe,

wherein the water effusion port is provided at a lower portion of the buffer tank.

6. The water suction device of claim 1, wherein the water storage tank includes a water inlet coupled to the water transfer pump,

wherein the water inlet is disposed at an external side of an upper portion of the water storage tank.

7. The water suction device of claim 1, comprising a handle hole when the water storage tank is attached to other parts of the water suction device.

8. A water suction device comprising:

a suction nozzle that includes a suction port and a discharge port;

a water separation chamber coupled to the discharge port of the suction nozzle, and the water separation chamber to include a water discharge port and an air discharge port;

a buffer tank coupled to the water discharge port, and the buffer tank to store water separated from the water separation chamber;

a water storage tank configured to store the water from the buffer tank that is transferred through a water transfer pump;

a water pipe to couple between the buffer tank and the water storage tank;

a suction pipe coupled to the air discharge port;

a suction fan coupled to the suction pipe to provide a suction force;

a suction motor configured to drive the suction fan; and

an auxiliary suction pipe coupled between the water storage tank and the suction pipe,

wherein an outlet of the water pipe in the water storage tank is disposed at a lower height in the water storage tank than an inlet of the auxiliary suction pipe in the water storage tank, and

wherein the buffer tank is smaller than the water storage tank.

9. The water suction device of claim 8, wherein the inlet of the auxiliary suction pipe is externally disposed from an upper portion of the water storage tank.

10. A water suction device comprising:

a suction nozzle;

a water separation chamber to couple to the suction nozzle, and the water separation chamber to have a water discharge port and an air discharge port;

a buffer tank to store water received from the water separation chamber;

a water storage tank to store water;

a water transfer pump to transfer the water from the buffer tank to the water storage tank via a water pipe;

a suction fan to provide a suction force to the air discharge port, and to provide an air flow through the air discharge port; and

an air discharge pipe coupled between the water separation chamber and the buffer tank,

wherein the air discharge pipe includes a water guide pipe to guide water from the water separation chamber into the buffer tank, and an air guide pipe to guide air inside the buffer tank to the water separation chamber, and

wherein the buffer tank is smaller than the water storage tank.

11. The water suction device of claim 10, wherein the water separation chamber includes a partition to guide a fluid from the suction nozzle and into the water discharge port side.

12. The water suction device of claim 10, wherein the water guide pipe and the air guide pipe are integrally formed to serve as a lid of the buffer tank.

13. The water suction device of claim 10, comprising a suction pipe between the air discharge port and the suction fan, and an auxiliary suction pipe coupled between the water storage tank and the suction pipe.