Keyswitch structure

A key switch structure, comprising:

• a base plate, the base plate having an opening, a base hook extending from a first side of the opening, and a tab extending from a second side of the opening along an extending direction;
• a keycap, the keycap being disposed above the base plate;
• a first support, the first support being connected to the base plate and the keycap, the first support comprising a base plate connecting end portion, the base plate connecting end portion being located above the tab and being rotatably connected to the base hook;
• and
• a second support, the second support being connected to the base plate and the keycap, the first support and the second support being pivotally connected around a pivot axis, the pivot axis being not parallel to the extending direction, the keycap moving relative to the base plate along a vertical direction between a pressed position and an unpressed position through the first support and the second support, the vertical direction being perpendicular to the pivot axis and the extending direction;
• wherein when the keycap is in the pressed position, the base plate connecting end portion abuts against the tab.