Electric tool safety special spanner

An electric tool and safe technology, applied in the direction of wrenches, manufacturing tools, screwdrivers, etc., can solve the problems of inability to install or disassemble with screws and nuts, inconvenient to install and disassemble with electric tools, and inconvenient to operate, and achieve novel structure and reliable performance. , the effect of simple appearance
CN1686679AInactive Publication Date: 2005-10-26绍兴市上虞东方铜业工贸有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
绍兴市上虞东方铜业工贸有限公司
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A high-safety special spanner for installing or detaching the saw blade, abrasive disc, or cutting blade in electric tool features that an eccentrical supporting point and spanner head are arranged on the locating-installing-detaching surface of casting, the spanner head is driven by the power output axle in gear cluster, and the power input axle is connected with the power input gear in gear cluster.
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Description

Technical field:

[0001] The invention relates to the installation and disassembly of a saw blade, a grinding wheel and a resin cutting blade in an electric tool, and belongs to the field of special wrench manufacturing for electric tools. Background technique:

[0002] Of the various power tools currently on the market, the installation, disassembly and installation of saw blades, grinding wheels, and resin cutting blades all require two wrenches to complete, and one of the wrenches acts on the shaft of the power tool to make it It cannot be rotated with the direction of rotation of the removal or installation wrench. The two need to act on a large force and in opposite directions to complete the removal or installation of the screw or nut. Its disadvantages: the one, inconvenient operation, need two wrenches to cooperate with each other; the second, it is unsafe, if the wrench slips off the working force point when using improper force or too much force, it will easily caus...

Claims

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