Calculation ware is examined to leftover of bolt of cloth convenient to observe

The utility model discloses a calculation ware is examined to leftover of bolt of cloth convenient to observe, calculate the ware body including examining, examine the one side of calculating the warebody and seted up the rotation groove, rotate the inslot rotation and install the mount pad, outside one side of mount pad extends to and rotates the groove, and the mount pad is located the one sideof rotating the inslot and has seted up the mounting groove, the rotation hole has been seted up on one side inner wall of mounting groove, rotate downthehole rotation and install the dwang, in the one end of dwang extends to the mounting groove, and the welding has a first gear, a gear revolve installs in the mounting groove, the welding had the second gear on the rotation groove was kept away from and is rotated groove open -ended one side inner wall, a second gear and a gear engagement. The utility model discloses simple structure, convenient to use when using, can adjust as required to examine and calculate the an