Heat dissipation device for computer information technology

The utility model discloses a heat dissipation device for the computer information technology, and belongs to the technical field of computers. A heat dissipation device for the computer information technology comprises a fixing base, a plurality of tooth grooves are formed in the positions, relative to tooth columns, of the inner side wall of a movable plate in a linear equal-interval structure, a clamping plate is fixedly connected to the small end of the movable plate, a threaded hole is formed in the middle of a rotating shaft, and a threaded rod is inserted into the threaded hole; a shell is fixedly arranged at the position, opposite to the lower side end of the rotating shaft, of the bottom face of the fixing base, a suction cup is fixedly arranged at the opening end of the lower side of the shell, a limiting block is fixedly arranged at the position, opposite to the rear side of the interior of the shell, of the bottom face of the fixing base, and a limiting groove is formed in the position, opposite t