Disassembling and assembling assembly for range hood and range hood

The embodiment of the utility model provides a disassembly and assembly assembly (1) for a range hood (100), the disassembly and assembly assembly (1) comprises a holding assembly (10) and a plate assembly (20), the holding assembly (10) is fixed to a smoke collecting cavity (30) of the range hood (100), the plate assembly (20) comprises a smoke guide plate (23), the smoke guide plate (23) is kept below the smoke collecting cavity (30) through the cooperation effect of the holding assembly (10) and the plate assembly (20), and the smoke guide plate (23) is separated from the smoke collecting cavity (30) in the installed state. The plate assembly (20) is removed from the holding assembly (10) by moving the plate assembly (20) relative to the holding assembly (10) in a removal direction (U) parallel to the horizontal direction. The embodiment of the utility model further provides the range hood (100) with the dismounting and mounting assembly (1). According to some embodiments of the invention, the simple disas