Mower and outdoor work tool

An outdoor work tool, comprising:

• a main body;
• a traveling wheel assembly, carrying the main body and being capable of driving the main body to move on ground, the traveling wheel assembly comprising a wheel axle;
• a handle assembly, connected with the main body;
• a first height adjustment device, comprising:
• a height adjustment fixing base, connected with the main body, the height adjustment fixing base being provided with a plurality of first through holes, and the plurality of the first through holes being separated from each other and parallel to each other, wherein
• the wheel axle connected with the outdoor work tool is placeable in one of the plurality of the first through holes, and the wheel axle is non-rotatably housed in the one of the plurality of the first through holes;
• and
• a second height adjustment device, comprising:
• a wheel axle side plate, a bottom of the wheel axle side plate being fixedly connected with one end of a connecting shaft of the mower, and the other end of the connecting shaft being detachably connected with a rear wheel of the mower,
• a gear plate, arranged on one side of the wheel axle side plate and provided with a plurality of gear grooves with different heights, and
• an operating component, arranged on the other side of the wheel axle side plate, and being capable of being operated to match the plurality of the gear grooves with different heights, wherein
• the first height adjustment device and the second height adjustment device are respectively connected with a front traveling wheel and a rear traveling wheel of the outdoor work tool, so as to respectively realize an adjustment of a cutting height;
• the gear plate is arc-shaped, each of the plurality of the gear grooves is arranged on an inner wall of the gear plate along an arc-shaped direction of the gear plate, and an opening of each of the plurality of the gear grooves faces a ground direction,
• the second height adjustment device further comprises an elastic component elastically arranged between the operating component and the wheel axle side plate, the wheel axle side plate is provided with a housing hole to house the elastic component, a bottom of the housing hole is provided with a protrusion block, the elastic component is sleeved on the protrusion block, and one end of the elastic component abuts against the operating component.