Labor-saving wrench for construction site

The invention discloses a labor-saving wrench for a construction site. The labor-saving wrench comprises a wrench body, a positioning device and an extension device, wherein the wrench body is connected with the extension device by virtue of the positioning device, the positioning device comprises a...

Full description

Saved in:
Bibliographic Details
Main Author GAO HUASONG
Format Patent
LanguageChinese
English
Published 09.11.2016
Subjects
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:The invention discloses a labor-saving wrench for a construction site. The labor-saving wrench comprises a wrench body, a positioning device and an extension device, wherein the wrench body is connected with the extension device by virtue of the positioning device, the positioning device comprises a first connecting rod, one end of the first connecting rod is fixedly connected with the wrench body, the other end of the first connecting rod is fixedly connected with a positioning disc, a positioning groove is formed in the outer side of the positioning disc, a positioning rod groove is formed in a second connecting rod, a reset spring is arranged on one end, which is far from of a rotating shaft, of the positioning rod groove, and the outer side of the reset spring is fixedly connected with a positioning rod; the extension device comprises an extension sleeve, an extension rod sleeves the interior of the extension sleeve, a V-shaped groove is formed in an opening of the extension sleeve, and a locking ring is
Bibliography:Application Number: CN20161734852