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发明名称
自锁紧扳手
摘要
自锁紧扳手是一种用于拧动螺纹紧固件的新型工具,它由大小扳头套用锁钉安装在手柄杆两端部所组成,大小扳头套上开有等腰梯形与半圆弧形相结合的封闭套孔,大小扳头套可沿手柄杆两端部摆动。操作手柄杆,可使扳头套拧动六角螺帽和圆形、不规则弧形的螺纹紧固件,具有结构简单、制造容易、夹紧力强、活动范围大的优点。
申请公布号
CN88211302U
申请公布日期
1988.12.28
申请号
CN88211302
申请日期
1988.01.02
申请人
吕孝浚;马金;华新乐
发明人
吕孝浚;马金;华新乐
分类号
B25B13/46
主分类号
B25B13/46
代理机构
代理人
主权项
1、一种用于拧动螺纹紧固件,由大小扳头套用销钉安装在手柄杆两端的自锁紧扳手,其特征在于:a)大扳头套1和小扳头套5上开有轮廓为等腰梯形与半圆弧形相结合的封闭套孔6,在此封闭套孔6轮廓面上开有直向锯齿槽,大小扳头套1和5上封闭套孔6半圆弧轮廓面一侧开有销钉孔2、4,b)手柄杆3制成长扁形,其两端为呈弧形的大小两端,弧形曲率与大小扳头套1和5的封闭套孔6轮廓相补,并在此弧形轮廓面上开有直向锯齿槽。
地址
上海市黄浦区南京西路467号
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