Cylinder cap convenient to remove dust

The utility model discloses a cylinder cap convenient to remove dust, the middle part of base is fixed with foraminiferous baffle, the top of base articulates there is the digging arm, the one end ofdigging arm is fixed with fixed ear, and the welding of the inside wall of digging arm has the bracing piece, and magnet is installed on the top of digging arm, the inside wall of digging arm open flutedly and the recess in have the chassis through the fix with screw, open at the center on chassis has through -hole and through -hole interpolation to have the bull stick, and the inside on chassis is equipped with the turbine spring, wherein the one end of turbine spring is connected on the inside wall on chassis, the other end winding of turbine spring is located the outer wall on chassis at the bull stick, the outer wall winding of bull stick has the filter screen, and the middle part outer wall of bull stick is fixed with the loop bar through the mode of key -type connection, this deviceutilizes the digging arm t