The invention discloses a household sweeping
robot sweeping mechanism which comprises a
machine body, the
machine body comprises an exhaust fan, a collecting
assembly, a sensor, two sweeping assemblies and two universal wheels; each sweeping
assembly comprises a positioning block, a first motor and a dust collecting
brush, wherein the first motor is fixedly connected with the positioning block, and the dust collecting
brush is connected with an output shaft of the first motor; the
machine body is fixedly provided with a second motor, an output shaft of the second motor is fixedly connected with a
threaded rod, the end, away from the second motor, of the
threaded rod is rotationally connected with the machine body, the thread directions of the two ends of the
threaded rod are opposite, the two positioning blocks are in threaded connection with the two ends of the threaded rod respectively, and the machine body is provided with limiting grooves matched with the positioning blocks. The second motor drives the threaded rod to enable the two positioning blocks to move oppositely, then the distance between two dust collecting brushes is reduced, then the two dust collecting brushes rotate reversely to conduct sweeping, garbage located in the middle of the two dust collecting brushes is swept into a collecting
assembly, and the garbage cleaning effect is good.