| 主权项 |
1. A screwdriver comprising:
a substantially tubular housing, the housing having a tube wall with an inner tube wall surface and outer tube wall surface and extending from a first tube wall end to a second tube wall end; a screwdriver head mounted within the tubular housing, the screwdriver head having a mounting portion coupled to the tube wall and an engaging portion opposite the mounting portion and extending beyond the first tube wall end, the engaging portion being configured to engage with a screw; a grip mechanism mounted within the housing and having a plurality of grip rods, a gripping portion of the grip rods extending beyond the first tube wall end; and an adjusting member movably positioned on the outer tube wall surface; wherein, there is a plurality of housing openings defined in the tube wall extending from the first tube wall end toward the second tube wall end; wherein, the gripping portion of each of the plurality of grip rods extend outward through one of the plurality of housing openings beyond the outer wall surface; wherein, the adjusting member is movable along the outer tube wall surface to engage the gripping portion of the plurality of grip rods and move the grip rods to a gripping position with the gripping portion of each of the plurality of grip rods moved toward the engaging portion of the screwdriver head; and wherein, there is a grip member attached to the distal end of the gripping portion of each of the gripping rods and the grip members cooperate to grab a screw engaged by the engaging portion of the screwdriver head when in the gripping position. |
