Control apparatus for water flow and dishwasher having the same

Patent metadata

Field	Value
Publication number	US-10588479-B2
Application number	US-201715398324-A
Country	US
Kind code	B2
Filing date	Jan 4, 2017
Priority date	Jan 5, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A control apparatus for a water flow is disclosed, which comprises an inlet connected to a water supply source; a discharge unit connected to a space where water is stored; a chamber for communicating the inlet with the discharge unit through a first communication unit connected to the inlet and a second communication unit connected to the discharge unit; a valve opening or closing the second communication unit; a first body fixed to any one of the inside of the inlet and the inside of the discharge unit; a first through hole provided to pass through the first body, forming a water flow; a second body fixed to the first body and located inside the first through hole; an elastic body fixed to the second body; a first support unit protruded from the first body to the elastic body, supporting the elastic body and forming a space between the elastic body and the first body to enter water the first through hole; and a second support unit protruded from the first body to the elastic body, selectively supporting the elastic body in accordance with a water pressure.

First claim

What is claimed is:

1. A water flow control apparatus, comprising:
an inlet connected to a water supply source;
a discharge unit connected to a water storage;
a chamber for communicating the inlet with the discharge unit through a first communication unit connected to the inlet and a second communication unit connected to the discharge unit;
a valve for opening/closing the second communication unit;
a first body fixed to one of an inside of the inlet or an inside of the discharge unit;
a first through hole passing through the first body and configured to form a water flow;
a second body located inside the first through hole;
an elastic body coupled to the second body;
a first support unit protruded from the first body to the elastic body, supporting the elastic body and forming a space between the elastic body and the first body; and
a second support unit protruded from the first body to the elastic body, selectively supporting the elastic body based on water pressure.

2. The control apparatus of claim 1 , further comprising:
a bent portion located between the first support unit and the second support unit.

3. The control apparatus of claim 2 , wherein the bent portion is provided as the first body is bent to be recessed in an opposite direction from that which the first support unit is protruded.

4. The control apparatus of claim 1 , further comprising:
a second through hole passing through the second body and configured to form an additional water flow.

5. The control apparatus of claim 1 , further comprising:
an inclined surface at the end of the first body where water is discharged out, the inclined surface enlarging a diameter of the first through hole.

6. The control apparatus of claim 1 , wherein the first support unit comprises at least two protrusions equally spaced apart from each other around the second body, and
wherein the second support unit is provided in at least one space formed between the first support units.

7. The control apparatus of claim 6 , further comprising:
a bent portion located at least at one space formed between the first support unit and the second support unit.

8. The control apparatus of claim 1 , further comprising:
a bent portion provided as the first body is bent opposite to a direction that the first support unit is protruded,
wherein the first support unit comprises at least two protrusions equally spaced apart from each other around the second body, and
wherein the bent portion is located at each space formed between the first support units, and the second support unit is provided at each space formed between the bent portion and the first supports.

9. The control apparatus of claim 1 , wherein the second body is fixed to the first body.

10. The control apparatus of claim 1 , wherein the space formed between the elastic body and the first body allows water to enter the first through hole.

11. A dishwasher comprising:
a tub for receiving washing targets;
a sump in which water is stored;
spray arms spraying water to the washing targets;
a pump supplying the water stored in the sump to the spray arms;
a water supply path connected to a water supply source;
a connection path connected to the sump;
an inlet connected to the water supply path;
a discharge unit connected to the connection path;
a chamber for communicating the inlet with the discharge unit through a first communication unit connected to the inlet and a second communication unit connected to the discharge unit;
a valve for opening/closing the second communication unit;
a first body fixed to one of an inside of the inlet or an inside of the discharge unit;
a first through hole passing through the first body and configured to form a water flow;
a second body located inside the first through hole;
an elastic body coupled to the second body;
a first support unit protruded from the first body to the elastic body, supporting the elastic body and forming a space between the elastic body and the first body; and
a second support unit protruded from the first body to the elastic body, selectively supporting the elastic body based on water pressure.

12. The dishwasher of claim 11 , wherein the first support unit comprises at least two protrusions equally spaced apart from each other around the second body, and
wherein the second support unit is provided in at least one space formed between the first supports.

13. The dishwasher of claim 12 , further comprising:
a bent portion located at least at one space formed between the first support unit and the second support unit.

14. The dishwasher of claim 11 , further comprising:
a bent portion provided as the first body is bent opposite to a direction that the first support unit is protruded,
wherein the first support unit comprises at least two protrusions equally spaced apart from each other around the second body, and
wherein the bent portion is located at each space formed between the first support units, and the second support unit is provided at each space formed between the bent portion and the first supports.

15. The dishwasher of claim 11 , wherein the second body is fixed to the first body.

16. The dishwasher of claim 11 , wherein the space formed between the elastic body and the first body allows water to enter the first through hole.

Assignees

• Lg Electronics Inc

Inventors

• Cho Kichul

Classifications

• A47L15/4244

  Water-level measuring or regulating arrangements · CPC title

• A47L2501/04

  Water pressure or flow rate · CPC title

• A47L15/4223 Primary

  Devices for water discharge, e.g. devices to prevent siphoning, non-return valves · CPC title

• A47L15/4217 Primary

  Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops · CPC title