Safe anti-slipping straight shank spanner fixator

The invention provides a safe anti-slipping straight shank spanner fixator. The problems that when an existing high-pressure 250 gate big gland and an existing pumping unit crankshaft nut are dismounted, time and labor are wasted, a spanner easily slips, and therefore the operation is not safe are mainly solved. The safe anti-slipping straight shank spanner fixator is characterized in that two connecting steel plates (2) symmetric up and down are vertically welded to the outer wall of a center threaded pipe (1), the ends of the connecting steel plates (2) are connected with a top plate (3), and the axis of the top plate (3) is parallel to the axis of the center threaded pipe (1). By means of the safe anti-slipping straight shank spanner fixator, it can be guaranteed that the spanner does not slip, and the operation is safe. 一种安全防脱直柄搬手固定器。主要解决现有的高压250闸门大压盖及抽油机曲柄轴螺母拆卸时费时费力、扳手易滑脱而使操作不安全的问题。其特征在于：所述中心螺纹管(1)外壁上垂直焊接有两块上下对称的连接钢板(2)，连接钢板(2)端部连接有顶板(3)，且顶板(3)与中心螺纹管(1)轴线平行。该安全防脱直柄搬手固定器可以保证扳手不会滑脱，操作安全。