Patent ID: 8210380

Claim:
A dustbin of adjustable height comprising: an outside container body ( 2 ) and an inside container body ( 1 ); a compression spring ( 3 ) provided between a bottom ( 22 ) of the outside container body ( 2 ) and a bottom ( 12 ) of the inside container body ( 1 ); a plurality of grooves provided at a side wall ( 11 ) of the inside container body ( 1 ) along a longitudinal direction; a level regulator ( 5 ) provided at a side wall ( 21 ) of the outside container body ( 2 ), with its left end embedded in the groove ( 4 ) and its right end coupled with a switch means to control a horizontal motion of the level regulator ( 5 ); the switch means comprising: a bracket ( 61 ) mounted on the side wall ( 21 ) of the outside container body ( 2 ), which comprises a horizontal supporting plate ( 611 ) and a vertical supporting plate ( 612 ), the horizontal supporting plate ( 611 ) is vertically fixed onto the side wall ( 21 ) of the outside container body ( 2 ) and the vertical supporting plate ( 612 ) is fixed onto the horizontal supporting plate ( 611 ); a horizontal lever ( 62 ) across the side wall ( 21 ) of the outside container body ( 2 ), with its left end connected to the level regulator ( 5 ), a compression spring ( 63 ) is provided between a right end of the horizontal lever ( 62 ) and the vertical supporting plate ( 612 ), a slot ( 621 ) is provided at a right end of the horizontal lever ( 62 ) and an edge ( 622 ) is provided at the right side of the slot ( 621 ); a longitudinal lever ( 64 ) with its upper end connected to a manual button ( 65 ), a compression spring ( 66 ) is provided on the longitudinal lever ( 64 ) between the manual button ( 65 ) and the horizontal supporting plate ( 611 ), a lower end of the longitudinal lever ( 64 ) is inserted in the slot ( 621 ) of horizontal lever ( 62 ) and has a bevel ( 641 ) contacting the edge ( 622 ) of horizontal lever ( 62 ), when pressing the manual button ( 65 ), the bevel ( 641 ) is moved downwards to push the edge ( 622 ) moving rightwards, thereby the horizontal lever ( 62 ) moves rightwards, the level regulator ( 5 ) detaches off the groove ( 4 ) and the inside container body ( 1 ) is pushed up under a role of the compression spring ( 3 ).