Detachable aluminum alloy window body bottom frame piece

The detachable aluminum alloy window bottom frame piece comprises a main frame body, a slope protection plate and a plurality of sets of fixing pieces, the slope protection plate is installed on the outer surface of the front end of the main frame body in a spliced mode, the fixing pieces are installed at the bottom of the main frame body in a spliced mode, and the outer surface of the upper end of the slope protection plate is arranged in an inclined mode; the slope protection plate and the main frame body are spliced and fixed through an L-shaped clamping strip, the slope protection plate and the L-shaped clamping strip are integrally formed in a stamping mode, and a plurality of sets of slope grooves are formed in the bottom of the L-shaped clamping strip. The fixing piece comprises a fixing base and a lifting top block used for adjusting the installation height of the bottom frame piece, the lifting top block is movably connected to the inner side of the upper end of the fixing base in a sleeving mode, an