Lock catch structure of lifting computer table

The utility model discloses a lock catch structure of a lifting computer table, which can realize the controllable height of the computer table and can quickly adjust the lifting height. The device comprises an upper frame, L-shaped sliding rails are arranged on the left side and the right side of the upper frame respectively, sliding blocks are arranged in the L-shaped sliding rails, a plurality of through positioning holes which are distributed at intervals are formed in the sliding blocks, fixing seats are arranged on the outer sides of the L-shaped sliding rails, and a certain distance is formed between a fixing plate and the L-shaped sliding rails; a swing plate is arranged on the side, close to the L-shaped sliding rail, of the fixing base, and a shaft sleeve is arranged in the middle of the swing plate and fixedly connected with the swing plate. The other side, away from the L-shaped sliding rail, of the fixing base is provided with a hinged locking and clamping plate, and the fixing base is hinged to