Detergent case apparatus for washing machine

1. A washing machine including a detergent case apparatus, comprising:

a washing machine body;

a detergent case configured to be opened and closed, and having a hanging part or opening;

a button on or in the washing machine body; and

a case fixing apparatus configured to couple to the hanging part or opening and confine a movement of the detergent case by operation of the button,

wherein the button includes:

a button part having an end exposed outside the washing machine body;

a moving part in the washing machine body and connected to the button part; and

a guide in the washing machine body and configured to guide movement of the moving part, and

wherein the moving part includes:

a support in the washing machine body and connected to the button part;

one or more rails on one side or portion of the support, extending in a moving direction of the support, and abutting or contacting the guide; and

a contact projection on another side or portion of the support and abutting or contacting the case fixing apparatus,

wherein the case fixing apparatus includes:

a rotating shaft in the washing machine body;

a rotating hook coupled with the rotating shaft and having one end configured to latch to or fit in the hanging part or opening; and

a lever connected to another end of the rotating hook, configured to abut or contact the button and move the hook into or away from the hanging part or opening.

2. The washing machine of claim 1 , wherein the button part is on a side surface or portion, an upper surface or portion, or a back surface or portion of the washing machine body.

3. The washing machine of claim 1 ,

the contact projection is under the support.

4. The washing machine of claim 1 , wherein the guide includes:

one or more first guide hooks or brackets having a surface extending in the moving direction of the support, and configured to abut or contact one side of the support; and

a second guide hook or bracket in parallel with the one or more first guide hooks or brackets and configured to abut or contact another side of the support.

5. The washing machine of claim 4 , wherein the guide includes a guide projection or rail in parallel with the one or more first guide hooks or brackets and the second guide hook or bracket and configured to abut or contact the one or more rails.

6. The washing machine of claim 1 , wherein the case fixing apparatus further includes a pressure member configured to press or apply a force to the rotating hook or the lever to maintain the hook in the hanging part or opening.

7. The washing machine of claim 6 , wherein the pressure member comprises a spring.