NOZZLE FOR CLEANER

• US 20190328195A1
• Filed: 04/30/2019
• Published: 10/31/2019
• Est. Priority Date: 04/30/2018
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: RYU, Jungwan, KO, Moohyun, SHIN, Jinhyouk, YANG, Ingyu
• Granted Patent: US 11,399,684 B2
• Time in Patent Office: Days
• CPC Class Codes: A47L 11/206 for rotary disc brushes
• CPC Class Codes: A47L 11/4013 Contaminants collecting devices, i.e. hoppers, tanks or the like
• CPC Class Codes: A47L 11/4038 Disk shaped surface treating tools
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4083 Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits
• CPC Class Codes: A47L 11/4094 Accessories to be used in combination with conventional vacuum-cleaning devices
• CPC Class Codes: A47L 7/0009 with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
• CPC Class Codes: A47L 9/0472 Discs
• CPC Class Codes: A47L 9/068 Nozzles combined with a different cleaning side, e.g. duplex nozzles or dual purpose nozzles

Abstract

A nozzle for a cleaner has a nozzle main body including an intake channel to suction air. The nozzle includes first and second rotary cleaning units spaced apart from each other in a lateral direction under the nozzle main body. Each of the first and second rotary cleaning units includes a rotary plate coupled to a dust cloth. The nozzle further includes a first driving device to drive the first rotary cleaning unit and a second driving device to drive the second rotary cleaning unit. The nozzle includes a water tank to store water. Further, the nozzle has a water supply channel to supply water in the water tank to the rotary cleaning units. The nozzle has a water pump and a pump motor to drive the water pump to pump the water to the dust cloth.

Claims

1. A nozzle for a cleaner, comprising:

a nozzle main body including an intake channel configured to suction air;

a first rotary cleaning unit and a second rotary cleaning unit spaced apart from each other in a lateral direction and arranged under the nozzle main body, wherein each of the first and second rotary cleaning units includes a rotary plate configured to be coupled to a dust cloth;

a first driving device disposed on a first side of a channel extending in a front-rear direction of a suction nozzle and configured to drive the first rotary cleaning unit;

a second driving device disposed on a second side of the channel extending in the front-rear direction of the suction nozzle and configured to drive the second rotary cleaning unit;

a water tank separably mounted on the nozzle main body and configured to store water;

a water supply channel disposed in the nozzle main body and configured to supply water in the water tank to each of the first and second rotary cleaning units;

a water pump disposed in the water supply channel; and

a pump motor configured to drive the water pump to pump the water in the water tank to the dust cloth.

2. The nozzle for a cleaner of claim 1, wherein the water supply channel includes:

a supply pipe configured to allow water discharged from an exhaust port of the water tank to flow therethrough;

a connector coupled to the supply pipe;

a first diverging pipe coupled to the connector and configured to supply water to the first rotary cleaning unit; and

a second diverging pipe coupled to the connector and configured to supply water to the second rotary cleaning unit.

3. The nozzle for a cleaner of claim 2, wherein each of the first diverging pipe and the second diverging pipe comprises a spray nozzle, and

the spray nozzle comprises a nozzle end, wherein the nozzle end is arranged to face respective rotary cleaning units.

4. The nozzle for a cleaner of claim 2, wherein the supply pipe includes:

a first supply pipe coupled to an inlet of the water pump; and

a second supply pipe coupled to an outlet of the water pump and the connector.

5. The nozzle for a cleaner of claim 2, wherein the intake channel includes:

a first channel extending in the lateral direction from a front end of the nozzle main body; and

a second channel extending in the front-rear direction from a center of the first channel, and

wherein the second channel is configured to separate the nozzle body into left and right sides, and wherein the exhaust port and the water pump are positioned on the left and right sides of the second channel.

6. The nozzle for a cleaner of claim 5, wherein the connector is positioned above the second channel.

7. The nozzle for a cleaner of claim 1, wherein the water pump includes:

an outer chamber including;

a first intake port on a first side of the outer chamber through which water discharged from the water tank is configured to flow into the outer chamber; and

first and second exhaust ports at upper and lower portions of a second side of the outer chamber, respectively;

an inner chamber formed in the outer chamber, the inner chamber including;

a third exhaust port on a first side of the inner chamber; and

third and fourth intake ports at upper and lower portions of a second side of the inner chamber;

a compression member mounted at the second side of the outer chamber, the second side of the outer chamber configured to send out the water discharged through first and second exhaust ports to the third and fourth intake ports, wherein the compression member is made of an elastic material;

first and second valve members configured to open and close the first and second exhaust ports at a side of the first and second exhaust ports; and

third and fourth valve members configured to open and close the third and fourth intake ports at a side of the third and fourth intake ports.

8. The nozzle for a cleaner of claim 7, wherein the compression member includes:

a first compression chamber configured to cover the first exhaust port and the third intake port at the second side of the outer chamber; and

a second compression chamber configured to cover the second exhaust port and the fourth intake port.

9. The nozzle for a cleaner of claim 8, wherein the compression member further includes:

a flat vertical plate fixed on opposite ends of the first combustion chamber and the second combustion chamber; and

a shaft horizontally extending from a center of the vertical plate.

10. The nozzle for a cleaner of claim 9, wherein the compression member further includes:

a driving unit rotatably connected to an end of the shaft and configured to move vertically or rotate the end of the shaft by a reciprocation motion.

11. The nozzle for a cleaner of claim 10, wherein the driving unit includes:

a pump motor; and

a power transmission member configured to convert and transmit rotation motion of the pump motor into the reciprocation motion.

12. The nozzle for a cleaner of claim 11, wherein the power transmission member includes:

a rotary member coupled to the pump motor;

a first link member eccentrically and rotatably coupled to the rotary member; and

a second link member including a first end rotatably fixed to the first link member and a second end rotatably fixed to the shaft.

13. The nozzle for a cleaner of claim 1, wherein:

the first rotary cleaning unit includes a first rotary plate coupled to the dust cloth, the first rotary plate comprising a first rotational center,

the second rotary cleaning unit includes a second rotary plate coupled to the dust cloth, the second rotary cleaning unit comprising a second rotational center,

the first driving device includes a first driving motor,

the second driving device includes a second driving motor, and

an axial line of the first driving motor and an axial line of the second driving motor are positioned between the first rotational center and the second rotational center, respectively.

14. The nozzle for a cleaner of claim 13, wherein the first and second driving motors are positioned between the first rotational center and the second rotational center, respectively.

15. The nozzle for a cleaner of claim 13, wherein:

the suction channel includes;

a first channel extending in the lateral direction from a front end of the nozzle main body; and

a second channel extending in the front-rear direction from a center of the first channel,

the first and second driving devices include driving gears respectively connected to shafts of the first and second driving motors, and

the driving gears are respectively arranged between the first channel and each of the first and second driving motors.

16. The nozzle for a cleaner of claim 13, wherein the first and second driving motors are configured to overlap, in the front-rear direction, a virtual line connecting the first rotational center and the second rotational center.

17. The nozzle for a cleaner of claim 1, wherein:

the water tank includes;

a tank body including a chamber configured to store water, the tank body including an exhaust port configured to discharge the water; and

a valve including an opening and closing portion configured to open and close the exhaust port in the tank body,

the nozzle main body includes;

a valve operation member configured to control the opening and closing portion such that the opening and closing portion is configured to open the exhaust port when the water tank is mounted on the nozzle main body, and the water supply channel is connected to the valve operation member.

18. The nozzle for a cleaner of claim 1, wherein the intake channel includes:

a first channel extending in the lateral direction from a front end of the nozzle main body; and

a second channel extending in the front-rear direction from a center of the first channel,

the first driving device includes a first driving motor,

the second driving device includes a second driving motor, and

the water tank includes;

a first chamber disposed above the first driving motor;

a second chamber disposed above the second driving motor, and

a connection chamber configured to connect the first chamber and the second chamber in an area between the first channel and each of the first and second driving motors, respectively.

19. The nozzle for a cleaner of claim 1, wherein:

the dust cloth is coupled to the bottom of the rotary plate; and

each rotary plate comprises a plurality of water passage holes configured to pass water discharged from the water supply channel.

20. The nozzle for a cleaner of claim 19, wherein the plurality of water passage holes are spaced apart from each other circumferentially relative to a rotational center of each rotary plate.