Dust Filter for Cleaning Robot

1 . 1 is a front view showing a first dust filter for a cleaning robot;

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, bottom perspective view thereof;

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

1 . 13 is a back, top perspective view thereof;

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

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

2 . 3 is a cross-sectional view taken along line B-B in 2 . 1 ;

2 . 4 is a back view thereof;

2 . 5 is a left view thereof;

2 . 6 is a right view thereof;

2 . 7 is a top view thereof;

2 . 8 is an enlarged top view thereof;

2 . 9 is a bottom view thereof;

2 . 10 is an enlarged bottom view thereof;

2 . 11 is a front, bottom perspective view thereof;

2 . 12 is a front, top perspective view thereof; and

2 . 13 is a back, top perspective view thereof.