External auxiliary supporting device for mechanical keyboard

The utility model belongs to the technical field of supporting devices. The utility model relates to a keyboard, in particular to an external auxiliary supporting device for mechanical keyboards. A main supporting device of an existing mechanical keyboard is mostly a table top and other objects. Objects such as a desktop are not easy to carry; when a mechanical keyboard is placed on a common folding table, a keyboard fixing function is not achieved. Proposed now is the following scheme, the device comprises a supporting plate, a placing groove is formed in the top of the supporting plate; a mechanical keyboard is placed in the placement groove; four trapezoidal grooves are formed in the inner wall of the bottom of the placing groove; trapezoidal blocks are mounted in the four trapezoidal grooves in a sliding manner; two clamping plates are mounted on the inner wall of the bottom of the placement groove in a sliding manner; the clamping plates are fixedly connected with the two corresponding trapezoidal blocks