Three-in-one structure of keyboard

The utility model discloses a three-in-one structure of a keyboard, and relates to the technical field of keyboards. The silencer comprises the bottom cover and the PCB, the PCB is located in the bottom cover, the silica gel silencing pad is arranged on the surface of the side, away from the bottom cover, of the outer portion of the PCB, the fastener is fixed to the outer portion of the silica gel silencing pad, and therefore the silica gel silencing pad can be installed more conveniently and rapidly through the fastener. According to the utility model, the silica gel silencing pad is integrally assembled with the buckling position, so that the internal structure of the keyboard is not directly contacted with the upper cover and the bottom cover, and is clamped with the upper cover and the lower cover only by the buckling position of the silica gel silencing pad, and a buffering effect is generated when the keyboard is knocked, so that the effects of uniform hand feeling, softness, elasticity and warmth are a