Pressing device

A pressing device for a touchpad, comprising:

• a base board unit including at least two coupling members;
• an upper board unit disposed over said base board unit and including
• a panel,
• a circuit board that is connected to and disposed under said panel,
• a trigger switch that is connected to and disposed under said circuit board, and
• at least two engaging members that are connected to and disposed under said circuit board, and that are respectively disposed on opposite sides of said trigger switch;
• and
• a pair of interlocking members disposed between said base board unit and said upper board unit, each of said interlocking members having
• at least one coupling portion that is coupled with a respective one of said at least two coupling members,
• at least one engaging portion that is coupled with a respective one of said at least two engaging members, and
• at least one locking set that is disposed on a side of said at least one coupling portion opposite to said at least one engaging portion;
• wherein said at least one locking set of one of said interlocking members is coupled with said at least one locking set of the other one of said interlocking members;
• and
• wherein when said upper board unit is pressed toward said base board unit, said interlocking members are pivoted relative to each other and said trigger switch is converted from an initial state to a triggered state.