Lawn mower with artificial chassis grass-pushing anti-blockage device and grass breaking preventer pushed by back cover plate

The invention relates to a lawn mower used for trimming lawns in gardens, parks, and roadsides, and other places. Three wheels are used, and one wheel in an ordinary four-wheel lawn mower is removed, so steering and back-up are more flexible. The three-wheel lawn mower which uses a grass cutting head flat pole to heighten a front single wheel through rotation angle gears is a series excited machine electric lawn mower with a chassis anti-collision protector and a zonal function wave disk brake. The three-wheel lawn mower comprises an anti-collision protector which is arranged on the front part of a mower chassis, a zonal function wave disk brake on the middle part of the lawn mower chassis, and an artificial chassis grass-pushing anti-blockage device and grass breaking preventer pushed by a rear cover plate.