Jack provided with bolt

• Main Authors: WANG PING, LI XULIAN, LU HONGJUN, YIN JIAJIN
• Format: Patent
• Language: Chinese; English
• Published: 05.02.2019
• Subjects: HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The utility model provides a jack provided with bolt, including base, hexagon head bolt and steel ball, the base center is equipped with the screw hole, hexagon head bolt and screw hole threaded connection, hexagon head bolt top embedding steel ball, just the steel ball embedding the hexagon head bolt top degree of depth is not less than 0.6 times sphere diameter at least. The screw hole is trapezoidal thread hole or rectangular thread hole or fine screw thread hole. The hexagon head bolt top lies in embedding steel ball week border steel ball center equipartition pit. The equipartition is thediameter of the central line in the centre of a circle of pit 1 1.2 the sphere diameter of steel ball doubly. The utility model discloses can realize the contact of top steel ball, the contact surface is little, can be used to the device end, the level of precise adjustment equipment. 本实用新型提供了种螺栓千斤顶，包括底座、六角头螺栓和钢珠；所述底座中心设有螺纹孔，所述六角头螺栓与螺纹孔螺纹连接；所述六角头螺栓顶部嵌入钢珠，且所述钢珠嵌入所述六角头螺栓顶部深度至少不小于0.6倍的球径。所述螺纹孔为梯形螺纹孔或者矩形螺纹孔或者细螺纹孔。所述六角头螺栓顶部位于