Upright type vacuum cleaner

1. An upright type vacuum cleaner, comprising:

a cleaner body formed with a mounting space;

a vacuum motor mounted in the cleaner body to produce suction force;

a brush assembly connected to the cleaner body;

a dust collection device mounted in the mounting space and having a dust collection bin and a cyclone cylinder; and

a lifting/lowering unit for lifting or lowering the dust collection bin in relation to the cleaner body so that the dust collection bin is anchored in the mounting space or removed from the mounting space, respectively, wherein the cyclone cylinder has a locking handle and the cleaner body has a handle connection part formed on a corresponding part of the cleaner body so that the locking handle can be removably connected to the handle connection part,

wherein the lifting/lowering unit is installed at a lower end of the dust collection bin and is mounted in or dismounted from the mounting space along with the dust collecting bin.

2. The upright type vacuum cleaner as claimed in claim 1 , wherein the locking handle is a rotary knob.

3. The upright type vacuum cleaner as claimed in claim 1 , wherein the dust collection bin is anchored by the lifting/lowering unit that is vertically movable.

4. The upright type vacuum cleaner as claimed in claim 3 , wherein the lifting/lowering unit comprises a lever part and a locking disk that vertically moves in association with the rotation of the lever part.

5. The upright type vacuum cleaner as claimed in claim 4 , wherein the lever part and the locking disk are operated in a cam manner.

6. An upright type vacuum cleaner, comprising:

a cleaner body that has a vacuum generation device mounted therein and a brush assembly formed at the lower side thereof;

a cyclone cylinder that separates dirt from air drawn in through an inflow passage communicating with the brush assembly, and discharges cleaned air through a discharge passage communicating with the vacuum generation device; and

a dust collection bin that is removably connected to the lower side of the cyclone cylinder and collects dirt separated from the air in the cyclone cylinder,

wherein the dust collection bin is anchored by a lifting/lowering unit,

wherein the lifting/lowering unit is installed at a lower end of the dust collection bin and is mounted in or dismounted from the cleaner body along with the dust collecting bin.

7. The upright type vacuum cleaner as claimed in claim 6 , wherein the lifting/lowering unit comprises a lever part and a locking disk that vertically moves in association with the rotation of the lever part.

8. The upright type vacuum cleaner as claimed in claim 7 , wherein the locking disk is operated in a cam manner.

9. The upright type vacuum cleaner as claimed in claim 1 , wherein the dust collection bin has an outer surface formed with a recess, and the lifting/lowering unit is fitted in the recess.

10. The upright type vacuum cleaner as claimed in claim 9 , wherein the lifting/lowering unit comprises:

a lifting/lowering control member fitted in the recess; and

a plurality of cam guides that are provided on the lifting/lowering control member and the outer bottom surface of the dust collection bin, respectively, for lifting and lowering the dust collection bin upon rotation of the lifting/lowering control member.

11. The upright type vacuum cleaner as claimed in claim 10 , wherein the lifting/lowering control member comprises a lever part capable of being gripped by a hand and a body part integrally formed with the lever part.

12. The upright type vacuum cleaner as claimed in claim 11 , wherein the plurality of cam guides comprises first and second cam guides projecting from the outer bottom surface of the dust collection bin, and third and fourth cam guides projecting from the body part in such a manner as to be engaged with the first and second cam guides.

13. The upright type vacuum cleaner as claimed in claim 12 , wherein the plurality of cam guides further comprises a fifth cam guide projecting from the outer bottom surface of the dust collection bin in such a manner as to come into contact with the lever part, thereby separating the lever part from the outer bottom surface of the dust collection bin.

14. The upright type vacuum cleaner as claimed in claim 1 , wherein the dust collection bin has an outer bottom surface including an air outlet port formed therethrough and the lifting/lowering unit includes a bore formed therein, so that air purified in the cyclone cylinder is introduced into a motor chamber, within which the vacuum generation device is installed, via the air outlet port and the bore.

15. The upright type vacuum cleaner as claimed in claim 11 , further comprising a discharge flow passage within the cleaner body for communicating between a motor chamber, within which the vacuum generation device is installed, and the cyclone cylinder in order to discharge air to the motor chamber.

16. The upright type vacuum cleaner as claimed in claim 15 , wherein the dust collection bin comprises a cylindrical rotary shaft extending from the outer bottom surface of the dust collection bin.

17. The upright type vacuum cleaner as claimed in claim 16 , wherein the body part of the lifting/lowering control member comprises a cylinder into which the cylindrical rotary shaft can be inserted so as to center the lifting/lowering control member when the lifting/lowering control member is rotated.