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Title:
BIONIC WRENCH
Document Type and Number:
WIPO Patent Application WO/2016/106488
Kind Code:
A1
Abstract:
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.

Inventors:
TANG, Junwen (No.73, Xushan Village Zhibu Tow, Zhuji Zhejiang 7, 311827, CN)
Application Number:
CN2014/095295
Publication Date:
July 07, 2016
Filing Date:
December 29, 2014
Export Citation:
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Assignee:
TANG, Junwen (No.73, Xushan Village Zhibu Tow, Zhuji Zhejiang 7, 311827, CN)
International Classes:
B25B13/14; B25B23/00
Foreign References:
CN201168940Y2008-12-24
CN200963797Y2007-10-24
CN201249419Y2009-06-03
CN101973006B2012-12-26
US4437364A1984-03-20
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