主权项 |
1. A wrench, comprising:
a main body, defining an axial direction, the main body having a first end and an opposite second end, the main body having two extending arms extending outward from the first end, the two extending arms extending oppositely and obliquely, the main body having a gripping portion at the second end, the main body further having a screwing mechanism between the first end and the second end; two clamping members, each clamping member being slidably disposed one of the extending arms, each clamping member being formed with a clamping portion on a face thereof facing the other clamping member, a clamp width being defined as a distance between the two clamping portions; a sleeve member, screwed with the screwing mechanism of the main body, the sleeve member moving with respect to the screwing mechanism along the axial direction when the sleeve member is rotated with respect to the screwing mechanism; two connecting arms, an end of each connecting arm being pivotably connected with one of the clamping members, an opposite end of the connecting arm being pivotably connected with one of the sleeve member and the screwing mechanism; wherein an end of each connecting arm is moved along the axial direction to further drive the two clamping members to slide on the two arms respectively so as to alternate the clamp width when the sleeve member is moved with respect to the screwing mechanism. |