Floor brush assembly and floor cleaning apparatus

A floor brush assembly, comprising:

• a floor brush main body (10),
• a roller brush assembly (12),
• a roller brush handle (13), and
• a roller brush release member (11), wherein the floor brush main body (10) is provided with a roller brush cavity (102), wherein a first side wall surface of the floor brush main body (10) is provided with a roller brush insertion opening (103) in communication with the roller brush cavity (102), wherein a second side wall surface of the floor brush main body (10) is provided with a roller brush driving shaft, wherein the roller brush assembly (12) comprises:
• a roller brush (120) arranged in the roller brush cavity (102) and a roller brush holder (121) connected to a first end of the roller brush (120), wherein a second end of the roller brush (120) is inserted into the roller brush driving shaft, wherein the roller brush holder (121) is detachably connected to the floor brush main body (10), wherein the roller brush holder (121) is provided with a handle recess (1213), wherein the roller brush handle (13), which is movably connected to the roller brush holder (121), has a first state of being hidden in the handle recess (1213) and a second state of being exposed outside the handle recess (1213), and wherein the roller brush release member (11) is arranged on the floor brush main body (10) for being snapped onto or separated from the roller brush handle (13), thereby switching the roller brush handle (13) between the first state and the second state.