Diameter of drum measuring tool

The utility model provides a diameter of drum measuring tool, contains the body of rod I and the body of rod II, and the body of rod I is as an organic whole with II perpendicular hinges of the body of rod, constitutes L shape measuring tool, the body of rod I be provided with the toper clamping part with II perpendicular intersections of body of rod bottoms, the toper clamping part constitute forthe elasticity material, the toper clamping part includes two V -arrangement boards that are mirror symmetry, the interval of two blocks of V -arrangement boards of toper clamping part from bottom totop increases gradually, the V -arrangement clamping part can add and hold on the lateral wall of drum, measuring tool's a structure be, the body of rod I and the body of rod II on all seted up the slide, the slide both sides all mark same scale, the slide on install the vernier, the vernier can instruct current measurement scale. 种圆筒直径测量工具，包含杆体Ⅰ和杆体Ⅱ，杆体Ⅰ和杆体Ⅱ垂直铰链为体，构成L形测量工具，所述的杆体Ⅰ和杆体Ⅱ垂直交汇处底部设置有锥形夹持部，所述的锥形夹持部为弹性材质构成，锥形夹持部包含