Vacuum cleaner having a cyclone dust collecting apparatus

1. A vacuum cleaner comprising:

a cleaner body;

a cyclone body rotatably mounted in the cleaner body;

a dust receptacle detachably mounted in the cleaner body and disposed below the cyclone body; and

a locking unit locking and releasing the cyclone body and the dust receptacle with respect to each other, wherein the locking unit comprises:

a button formed on a handle of the dust receptacle and having a hook;

a fastening part provided to the cyclone body to lock and release the hook; and

a resilient member pressing the button in a direction for locking the hook.

2. The vacuum cleaner of claim 1 , further comprising a cover rotatably mounted to the cleaner body, wherein the cyclone body is connected to the cover.

3. The vacuum cleaner of claim 2 , wherein the cleaner body comprises:

a suction pipe through which the air flows into the cyclone body; and

a connection pipe through which the air flows out from the cyclone body, and

the suction pipe and the connection pipe are mounted within the cleaner body.

4. The vacuum cleaner of claim 3 , wherein the suction pipe is extended from a front to a rear along an inner bottom of the cleaner body and bent upward by a predetermined angle to be connected with the cyclone body.

5. The vacuum cleaner of claim 1 , wherein the fastening part comprises:

a supporting projection protruded on the cyclone body; and

a hook holder formed on a lower part of the supporting projection.

6. A vacuum cleaner comprising:

a cleaner body;

a dust receptacle detachably mounted in said cleaner body;

a cyclone body moveably mounted in a position above said dust receptacle, said cyclone body being moveable from said position so that said dust receptacle can be removed from said cleaner body; and

a locking unit having a locking position and a releasing position, said locking unit locking said cyclone body and said dust receptacle to each other in said locking position and releasing said cyclone body and said dust receptacle from each other in said releasing position, wherein the locking unit comprises:

a button formed on a handle of the dust receptacle and having a hook;

a fastening part provided to the cyclone body to lock and release the hook; and

a resilient member pressing the button in a direction for locking the hook.

7. The vacuum cleaner of claim 6 , wherein said handle is configured for a user to grip when removing said dust collected therein.

8. The vacuum cleaner of claim 6 , further comprising a cover pivotally mounted to said cleaner body, and the cyclone body is mounted to said cover so that pivotal movement of said cover also moves said cyclone body from said position above said dust receptacle.

9. The vacuum cleaner of claim 6 , wherein said cleaner body comprises a bottom that is sloped toward a back of said cleaner body by approximately 15 degrees with respect to a vertical line.