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发明授权
CN105004247B 一种测量圆弧装置 有权

一种测量圆弧装置
摘要：
本发明涉及一种测量圆弧装置，包含左支撑杆和右支撑杆；所述左支撑杆上设置有与左支撑杆垂直平分线重合的左滑杆；所述右支撑杆上设置有与右支撑杆垂直平分线重合的右滑杆；所述左滑杆和右滑杆上分别对应设置有可滑动的下滑块和上滑块；所述下滑块和上滑块的底部可转动连接；所述左支撑杆和右支撑杆的两端和中部分别设置有通孔；所述左支撑杆和右支撑杆的中部通孔内设置有测量杆；测量圆弧半径时，所述左支撑杆的一端和右支撑杆的一端通过测量杆可转动连接，且左支撑杆的另一端和右支撑杆的另一端安装有测量杆；本发明既能测量圆弧的半径，又能测量圆弧的圆心角，且测量简单，使用方便。
摘要（英）：

The invention relates to an arc measuring device, which comprises a left supporting rod and a right supporting rod, wherein a left sliding rod which coincides with a perpendicular bisector of the left supporting rod is arranged on the left supporting rod; a right sliding rod which coincides with a perpendicular bisector of the right supporting rod is arranged on the right supporting rod; a slidable lower sliding block is arranged on the left sliding rod, and a slidable upper sliding block is arranged on the right sliding rod; the bottom part of the lower sliding block is connected with the bottom part of the upper sliding block in a rotated manner; through holes are formed in both ends and the middle part of each of the left supporting rod and the right supporting rod; a measuring rod is arranged in the through hole in the middle part of each of the left supporting rod and the right supporting rod; and when measuring radius of an arc, one end of the left supporting rod is connected with one end of the right supporting rod through the measuring rod in a rotated manner, and the other end of the left supporting rod and the other end of the right supporting rod are each provided with one of measuring rods. The arc measuring device can be used for measuring the radius of the arc as well as a central angle of the arc, and is simple in measurement and convenient to use.

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