Dishwasher

1. A dishwasher comprising:

a main body;

a tub disposed inside the main body and having an opening;

a door to open or close the opening of the tub; and

a rack assembly disposed inside the tub,

wherein the rack assembly includes:

a fixing plate to accommodate tableware;

a lifting plate movable up and down relative to the fixing plate to adjust a height of the lifting plate in the tub, the lifting plate to accommodate tableware;

an operating lever to move the lifting plate; and

a lifting induction connector to connect the operating lever to the lifting plate, so that an operation of the operating lever moves the lifting induction connector, which thereby moves the lifting plate up and down relative to the fixing plate,

wherein the lifting induction connector is rotatable relative to the fixing plate and the lifting plate.

2. The dishwasher according to claim 1 , wherein:

the rack assembly further includes a link connector to connect the lifting plate to the lifting induction connector.

3. The dishwasher according to claim 2 , wherein:

the link connector includes an arm, and

the lifting plate includes a guide slot movably coupled to the arm of the link connector.

4. The dishwasher according to claim 3 , wherein:

the guide slot includes a first end adjacent to the lifting induction connector, and a second end positioned opposite the first end and above the first end.

5. The dishwasher according to claim 4 , wherein:

the guide slot further includes a connection portion connecting the first end to the second end.

6. The dishwasher according to claim 4 , wherein:

when the arm of the link connector is positioned at the first end of the guide slot, the lifting plate is lowered, and

when the arm of the link connector is positioned at the second end of the guide slot, the lifting plate is raised.

7. The dishwasher according to claim 1 , wherein:

the rack assembly further includes a lifting induction connector holder extending from the fixing plate toward the lifting plate to be coupled with the lifting induction connector.

8. The dishwasher according to claim 1 , wherein:

the operating lever is coupled to the lifting induction connector to rotate with the lifting induction connector.

9. The dishwasher according to claim 8 , wherein:

the rack assembly further includes a rotation restricting rib to restrict a rotation range of the operating lever.

10. The dishwasher according to claim 9 , wherein:

the rotation restricting rib includes:

a first rotation restricting rib to interfere with the operating lever when the lifting plate is raised; and

a second rotation restricting rib to interfere with the operating lever when the lifting plate is lowered, and spaced apart from the first rotation restricting rib.

11. A dishwasher comprising:

a main body;

a tub disposed inside the main body; and

a rack assembly disposed inside the tub,

wherein the rack assembly includes:

a fixing plate to accommodate tableware;

a lifting plate movable up and down relative to the fixing plate to adjust a height of the lifting plate in the tub to accommodate tableware;

a first lifting induction connector rotatably connected to a first end of the lifting plate;

a second lifting induction connector rotatably connected to a second end of the lifting plate; and

an operating lever to rotate at least one of the first lifting induction connector and the second lifting induction connector to move at least one of the first end of the lifting plate and the second end of the lifting plate, respectively.

12. The dishwasher according to claim 11 , wherein:

the tub includes an opening, and the operating lever is adjacent to the opening of the tub.

13. The dishwasher according to claim 12 , wherein:

the operating lever includes:

a first operating lever coupled to the first lifting induction connector to move the first end of the lifting plate by rotating the first lifting induction connector; and

a second operating lever coupled to the second lifting induction connector to move the second end of the lifting plate by rotating the second lifting induction connector separately from the first operating lever.

14. The dishwasher according to claim 11 , wherein:

the rack assembly further includes:

a first link connector to connect the first end of the lifting plate to the first lifting induction connector, and having an arm movably coupled to a first guide slot provided at the first end of the lifting plate; and

a second link connector to connect the second end of the lifting plate to the second lifting induction connector, and having an arm movably coupled to a second guide slot provided at the second end of the lifting plate.

15. A dishwasher comprising:

a main body;

a tub disposed inside the main body and having an opening; and

a rack assembly disposed inside the tub to be capable of being withdrawn,

wherein the rack assembly includes:

a fixing plate to accommodate tableware;

a lifting plate movable up and down relative to the fixing plate to adjust a height of the lifting plate in the tub to accommodate tableware;

a lifting induction connector rotatably connected to the lifting plate; and

an operating lever provided adjacent to an opening of the tub to operate to move the lifting induction connector to thereby move the lifting plate while the rack assembly is positioned inside the tub.

16. The dishwasher according to claim 15 , wherein the lifting plate is movable up and down among:

a first state where a first end of the lifting plate is raised and a second end of the lifting plate is raised,

a second state where the first end of the lifting plate is raised and the second end of the lifting plate is lowered, and

a third state where the first end of the lifting plate is lowered and the second end of the lifting plate is lowered.