Swing spanner improved structure

Abstract

An improved structure of a tilting head spanner is composed of a tilting drive head with a screw part driving end and a convex pivoting end, and a handle with a concave end for pivoting to said convex pivoting end via a pin in order to tilt the head, and a control mechanism in it for controlling the tilting of head. Said convex pivoting head has the first part with teeth and the second part with arc surface for strengthening it.

Description

technical field [0001] The invention relates to a hand tool wrench, in particular to an improved structure of an oscillating head wrench composed of a driving head and a handle pivotally arranged on the driving head. Background technique [0002] Since human beings have civilization, hand tools have occupied a place, and since the invention of screws, wrenches have occupied the most important position in the field of hand tools, and are common in daily life, furniture, or machinery used in industry and commerce. , work tools, almost all use the cooperation of bolts and nuts or screw holes to achieve the purpose of fixing or locking. Therefore, the wrench used to lock or loosen bolts and nuts has become an indispensable tool for field workers. Indispensable hand tools, especially after the concept of DIY prevails, many consumers have their own tool sets with different usage characteristics for bolts and nuts of different shapes and sizes. [0003] refer to figure 1 and fi...

AI Technical Summary

Problems solved by technology

However, the meat thickness L1 of the stressed section 24b is greatly reduced due to structural limitations, so when the pulling force applied to the swing head wrench is too large, the meat wall of the stressed section 24b is prone to cracks 25 or damage, which seriously affects To the torque value that the wrench can bear

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