一种液压内对口器的研制与应用

The Development and Application of A Type of Hydraulic Internal Line-up Clamp

介绍一种自制管道施工对口机具，该机具结构简单、操作安全、使用方便、顶起力大、移动性强，适用于大口径管道铺设现场的管口组对。一年来的施工应用表明，这种液压内对口器的对口效率高，对口质量可靠。

The structural features and using method for a self-made line-up clamp for pipeline construc- tion is introduced in this paper. It shown through one-year application that this type of hydraulic in- temal line-up clamp brings high efficiency and reliable quality in field aligning large diameter pipes.