Device for it is firm with antiskid to measure foot rest

The utility model relates to a device for it is firm with antiskid to measure foot rest all rotates at every lateral wall of set-square and installs the connecting rod, and the other end processing of connecting rod has an external screw thread, is equipped with three bottom plates in the outside of set-square, all rotates at the upper surface of every bottom plate and installs the installation axle, at the every epaxial mounting panel that all is fixed with of installation, all is fixed with cavity semicircle awl on every mounting panel, and the axis of the axis perpendicular to installation axle of cavity semicircle awl, and the directional installation axle of the vertex of a cone of cavity semicircle awl all are fixed with the antiskid piece at the lower surface of every bottom plate, has offered the female connection hole in the one end of the bottom plate towards the set-square, the external screw thread section spiro union of connecting rod is downthehole at female connection. The utility model discloses simple structure, the equipment is convenient, can guarantee to measure the foot rest effectively in indoor and other balances and high steadiness the when face uses smoothly