Key assembly

A key assembly, comprising:

• a baseplate, comprising a top surface and a first recess groove and a second recess groove recessed from the top surface, wherein the first recess groove and the second recess groove are blind holes;
• a hook, disposed on the baseplate and extending upward from the top surface to form a first hole and a second hole between the hook and the top surface, wherein an orthographic projection range of the hook and orthographic projection ranges of the first recess groove and the second recess groove do not overlap one another;
• a key cap, disposed on the baseplate;
• an elastic member, disposed between the key cap and the baseplate;
• a first link bar and a second link bar, connecting the key cap and the baseplate, wherein the first link bar and the second link bar each comprise an extension portion passing respectively through a first hole and a second hole, and the first link bar and the second link bar are disposed symmetrically;
• and
• a membrane, disposed on the top surface of the baseplate, wherein the membrane covers respectively at least part of the first recess groove and the second recess groove, and the extension portion of the first link bar and the extension portion of the second link bar abut the membrane respectively.