Structure for disassembling and assembling cutting member, and lawn mower

A structure for disassembling and assembling a cutting member, for connecting the cutting member to a blade disc, comprising:

• a limiting member;
• a sleeve;
• and
• a locking assembly, at least partially disposed within a space enclosed by the limiting member and the sleeve, the locking assembly comprising a locked state and an unlocked state;
• wherein the blade disc comprises a mounting plane having a mounting point for mounting the structure for disassembling and assembling the cutting member, the blade disc rotates about a rotation axis, and a direction from a projection point of the rotation axis of the blade disc onto the mounting plane to the mounting point is defined as a first direction;
• wherein when the locking assembly is in the locked state, the limiting member is locked onto the sleeve to restrict a movement stroke of the cutting member;
• and when the locking assembly is in the unlocked state, the limiting member disengages from the sleeve, the cutting member extends along a first straight line, and the cutting member is rotated until the first straight line forms a preset angle with the first direction to disassemble the cutting member.