A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodating space for accommodating at least part of the blade assembly and a power mechanism configured to drive the blade assembly to rotate about a rotation axis. The blade assembly includes a cutting blade and a chopping device. The cutting blade is configured to be driven by the power mechanism to rotate about the rotation axis, and the cutting blade includes a cutting edge. The chopping device includes a chopping body, a plurality of chopping teeth, and a plurality of branching ports provided between two adjacent ones of the plurality of chopping teeth. The chopping body is configured to be driven by the power mechanism to rotate and the chopping teeth extend upward or downward from the chopping body.

A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodating space for accommodating at least part of the blade assembly and a power mechanism configured to drive the blade assembly to rotate about a rotation axis. The blade assembly includes a cutting blade and a chopping device. The cutting blade is configured to be driven by the power mechanism to rotate about the rotation axis, and the cutting blade includes a cutting edge. The chopping device includes a chopping body, a plurality of chopping teeth, and a plurality of branching ports provided between two adjacent ones of the plurality of chopping teeth. The chopping body is configured to be driven by the power mechanism to rotate and the chopping teeth extend upward or downward from the chopping body.

The disclosure provides a mower and an outdoor work tool. The mower includes a main body, a traveling wheel assembly, a handle assembly, a blade, and a first height adjustment device. The traveling wheel carries the main body and may drive the main body to move on the ground. The traveling wheel assembly includes a wheel axle. The handle assembly is connected with the main body. The first height adjustment device is provided with a height adjustment fixing base which is connected with the main body. The height adjustment fixing base is provided with a plurality of first through holes. A wheel axle connected with the mower is arranged to be selectively placed in the first through hole, and the wheel axle is non-rotatably housed in the first through hole.

The disclosure provides a mower and an outdoor work tool. The mower includes a main body, a traveling wheel assembly, a handle assembly, a blade, and a first height adjustment device. The traveling wheel carries the main body and may drive the main body to move on the ground. The traveling wheel assembly includes a wheel axle. The handle assembly is connected with the main body. The first height adjustment device is provided with a height adjustment fixing base which is connected with the main body. The height adjustment fixing base is provided with a plurality of first through holes. A wheel axle connected with the mower is arranged to be selectively placed in the first through hole, and the wheel axle is non-rotatably housed in the first through hole.

A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.

A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.

A lawn mower may include a blade housing configured to house at least a first blade and a second blade, a shaft disposed to rotate within the blade housing, a powerhead configured to selectively turn the shaft responsive to application of power from a power source, and a blade coupler configured to selectively couple the first blade and/or the second blade to the shaft to produce different cutting performance conditions based on which of the first blade and/or the second blade is operably coupled to the shaft.