| 摘要 |
A bionic wrench, comprising a hand grip (1) provided with a fixed jaw (11), a worm gear (2), a worm (32) and a movable jaw (3), the fixed jaw (11) and the movable jaw (3) forming a clamp opening; a clamping surface of the fixed jaw (11) is provided with a first wedge block (4) slidable with respect to the clamping surface thereof; a clamping surface of the movable jaw (3) is provided with a second wedge block (7) slidable with respect to the clamping surface thereof; the small and large ends of the first wedge block (4) being arranged in a reverse direction to the small and large ends of the second wedge block (7). The bionic wrench can twist a tube or a screw in a narrow space, clamps effectively, is readily removed from a tube and protects a clamped object from damage. |
