Key structure

A key structure, comprising:

• a base, comprising a plate, a first limiting unit and a second limiting unit, wherein a first distance is formed between a first sliding portion of the first limiting unit and a bottom surface of the plate, a second distance is formed between the first sliding portion of the first limiting unit and a top surface of the plate, a third distance is formed between a second sliding portion of the second limiting unit and the bottom surface of the plate, and a fourth distance is formed between the second sliding portion of the second limiting unit and the top surface of the plate;
• a pivoting structure movably disposed on the base and comprising a first pivoting part and a second pivoting part, wherein the first pivoting part has a connecting shaft, and the second pivoting part has a shaft hole engaged with the connecting shaft;
• and
• a cap disposed on the pivoting structure, wherein one side of the first pivoting part and one side of the second pivoting part are pivotally connected to the cap respectively, respectively, and another side of the first pivoting part and another side of the second pivoting part have a first sliding shaft and a second sliding shaft slidably disposed in the first limiting unit and the second limiting unit respectively,
• wherein a portion of the first sliding shaft and a portion of the second sliding shaft are substantially lower than a top surface of the plate;
• and
• wherein the first sliding shaft has a first diameter, the second sliding shaft has a second diameter, a size of the first diameter is between the first distance and the second distance, and a size of the second diameter is between the third distance and the fourth distance.

A key structure, comprising:

• a base, comprising a plate, a first limiting unit and a second limiting unit, wherein a first distance is formed between a first sliding portion of the first limiting unit and a bottom surface of the plate, a second distance is formed between the first sliding portion of the first limiting unit and a top surface of the plate, a third distance is formed between a second sliding portion of the second limiting unit and the bottom surface of the plate, and a fourth distance is formed between the second sliding portion of the second limiting unit and the top surface of the plate;
• a pivoting structure movably disposed on the base and comprising a first pivoting part and a second pivoting part, wherein the first pivoting part has a connecting shaft, the second pivoting part has a shaft hole engaged with the connecting shaft, the shaft hole having a length larger than a diameter of the connecting shaft for the connecting shaft slidable therein;
• and
• a cap disposed on the pivoting structure, wherein the cap has a first pivoting unit and a second pivoting unit, one side of the first pivoting part and one side of the second pivoting part are pivotally connected to the first pivoting unit and the second pivoting unit respectively, and another side of the first pivoting part and another side of the second pivoting part are slidably disposed in the first limiting unit and the second limiting unit respectively;
• wherein one end of the first pivoting part and one end of the second pivoting part have a first fixing shaft and a second fixing shaft respectively, and another end of the first pivoting part and another end of the second pivoting part have a first sliding shaft and a second sliding shaft respectively, and wherein the first sliding shaft has a first diameter, the second sliding shaft has a second diameter, a size of the first diameter is between the first distance and the second distance, and a size of the second diameter is between the third distance and the fourth distance.