Automatic obstacle avoidance handrail cleaning machine

The invention relates to the technical field of stair cleaning equipment, in particular to an automatic obstacle avoidance handrail cleaning machine. The handrail cleaning machine is provided with a main hose and is characterized in that a sweeping mechanism is arranged in the middle of the main hose, a drive obstacle avoidance mechanism is arranged at each of the front end and the rear end of themain hose, the sweeping mechanism is composed of a support, connecting blocks, sweeping motors, disc brooms, a dust collecting bin, a dust collecting motor, a dust collecting cylinder, a portable power source and a sponge wiper, and each drive obstacle avoidance mechanism is composed of a supporting framework, a turnover motor, a turnover framework, turnover driving teeth, turnover driven teeth,crawling motors, crawling wheels and crawling wheel carriers. According to the handrail cleaning machine, the crawling wheels are driven to rotate through the crawling motors, so that climbing is realized, the turnover driven