Computer storage device

The utility model relates to the field of screening machines, in particular to a computer storage device which comprises a storage USB flash disk body, a protection assembly is arranged on the storage USB flash disk body and comprises a protection sleeve, first clamping rings, telescopic springs and abutting blocks, the first clamping rings are arranged on the left side and the right side of the protection sleeve, and the telescopic springs are fixedly arranged in the clamping rings. The output end of the telescopic spring is fixed to a second clamping ring, the second clamping ring is fixed to a fixing block, groove bodies are formed in the left side and the right side of the arranged fixing block, clamping springs are fixedly arranged in the grooves, abutting columns are arranged on the clamping springs, and abutting blocks are connected to the ends of the abutting columns. According to the utility model, through the arrangement of the telescopic spring, the clamping spring, the abutting column and the abut