Patent ID: 8791378

Claim:
A keyboard preventing keycaps from breaking off comprising a keyboard main body, and a limit board mounted to the keyboard main body; the keyboard main body comprising a base board, a thin film circuit board mounted on the base board, an elastic body mounted above the thin film circuit board, a scissors structure, and a keycap; a centre of the scissors structure being provided with a hollow part; the elastic body being located above the thin film circuit board and in the hollow part at the centre of the scissors structure; the keycap being located on the elastic body; the scissors structure being mounted to the keycap and passing through the thin film circuit board to be moveably mounted to the base board; the keycap comprising a top surface and side surfaces connected with the top surface, and the side surface being provided with a locking part extending outwards therefrom; the limit board being provided with a plurality of openings corresponding to keycaps, the keycaps passing through the openings, and the limit board covering the locking parts; wherein a bottom surface of the limit board away from the top surface of the keycap is provided with a recess adjacent to the opening and corresponding to the locking part, and the locking part of the keycap is correspondingly received in the recess of the limit board; wherein the base board is provided with a groove corresponding to the locking part, and while pressing the keycap, the locking part of the keycap is correspondingly received in the groove of the base board; wherein the thin film circuit board is provided with a through hole corresponding to the groove of the base board.