Internal overhaul and maintenance device for computer

The invention belongs to the technical field of computer overhaul and maintenance, and particularly relates to an internal overhaul and maintenance device for a computer, which comprises a main body, a clamping frame for clamping the computer is arranged at the upper end of the main body, a storage groove for storing a supporting column is formed in the position, close to the left end, of the main body, and a dust suction device used for cleaning dust in the computer is further arranged at the upper end of the main body. After a T-shaped sliding block is pushed to drive the clamping frame to move and adjust the proper distance, a rotating wheel is rotated to drive a friction plate to move downwards so that the friction plate can be tightly attached to the upper end surface of the main body, the computer is fixed to the upper end of the clamping frame to facilitate overhaul, clamping is more stable through the arrangement of a double-row sliding way, and computers of different sizes can be clamped; and by stre