Screw installation assist device

The utility model discloses a screw installation assist device and relates to a screw installation assist device for a screwdriver. An inserted pipe (5) of the clamping mechanism (8) is fixedly inserted at one end of a through hole (6) of a hard sleeve (7), wherein the limit ring (4) is in close fit with one end of the hard sleeve (7); the clamping nozzle (2) is provided with an open slot (3) from the upper end of the clamping nozzle (2) to the limit ring (4); or the clamping mechanism (8) and the hard sleeve (7) are integrated into one body; and the locking ring (1) is in clearance fit with the clamping nozzle (2). The utility model makes a screw protected by a soft sleeve in both installing and disassembling processes by sleeving the hard sleeve and a connecting sleeve of a tool sleeve on a tool bar and coating the soft sleeve on a tool head and a screwing end of the screw and effectively overcomes the technical difficult problem of dropping of the screw. Moreover, the soft sleeve, the connecting sleeve and