Dust filter for cleaning robot

1 . 1 is a front view of a dust filter for cleaning robot showing a first embodiment of our new design;

1 . 2 is a cross-sectional view taken along line A-A in 1 . 1 ;

1 . 3 is a cross-sectional view taken along line B-B in 1 . 1 ;

1 . 4 is a back view thereof;

1 . 5 is a left view thereof;

1 . 6 is a right view thereof;

1 . 7 is a top view thereof;

1 . 8 is an enlarged top view thereof;

1 . 9 is a bottom view thereof;

1 . 10 is an enlarged bottom view thereof;

1 . 11 is a front perspective view thereof;

1 . 12 is a front, top perspective view thereof;

1 . 13 is an enlarged view of part C marked in 1 . 12 ;

1 . 14 is a front, bottom perspective view thereof;

1 . 15 is an enlarged view of part D marked in 1 . 14 ;

1 . 16 is a back, left perspective view thereof;

2 . 1 is a front view of a dust filter for cleaning robot showing a second embodiment;

2 . 2 is a back view thereof;

2 . 3 is a left view thereof;

2 . 4 is a right view thereof;

2 . 5 is a top view thereof;

2 . 6 is a bottom view thereof;

2 . 7 is a front perspective view thereof;

2 . 8 is a front, top perspective view thereof;

2 . 9 is a front, bottom perspective view thereof; and

2 . 10 is a back, left perspective view thereof.