Pipe supporting opening corrector

The invention discloses a pipe supporting opening corrector. The pipe supporting opening corrector comprises an upper arc-shaped plate and a lower arc-shaped plate. A length-adjustable jacking rod isdetachably connected between the upper arc-shaped plate and the lower arc-shaped plate. The two ends of the jacking rod are detachably connected with the upper arc-shaped plate and the lower arc-shaped plate correspondingly. A limiting mechanism for limiting back movement of the upper arc-shaped plate and the lower arc-shaped plate is detachably connected between the upper arc-shaped plate and thelower arc-shaped plate. The pipe supporting opening corrector has the advantages that the maximum distance between an upper arc-shaped panel and a lower arc-shaped panel is limited, and excessive pipeline correction is reduced. 本发明公开了一种管道撑口矫正器，其包括上弧形板和下弧形板，所述上弧形板和下弧形板之间可拆卸连接有长度可调的顶搞，所述顶搞的两端分别与上弧形板和下弧形板可拆卸连接，所述上弧形板和下弧形板之间可拆卸连接有限制上弧形板和下弧形板相背移动的限位机构。本发明具有限制上弧面板和下弧面板之间的最大距离，减少管道过矫正情况出现的效果。