But T type screw thread height -adjusting V type piece

The utility model relates to a but T type screw thread height -adjusting V type piece, including the base, the base passes through the bolt and is connected with testing platform, at two deflectors ofthe both sides of base parallel arrangement, be equipped with vertical guide way on the deflector, be equipped with the bearing on the base, bearing inner race is fixed in the base, and the lower extreme of T type screw thread post is connected to the inner circle of bearing, and V type piece is connected to the upper end of T type screw thread post, the center of V type piece be equipped with Ttype internal thread hole, T type screw thread post passes through T type internal thread hole and the cooperation of V type piece, V type piece be located between two deflectors, when rotating T typescrew thread post, V type piece can be in the guide way up -and -down motion. The utility model discloses but use T type double -screw bolt height -adjusting function, remedied highly unable defect of adjusting of fixed height