Underwater parallel connection mounting device for steel pipe piles

The utility model provides a steel pipe pile underwater parallel connection installation device which comprises two tightening rings and a connecting rod fixedly connected with the two tightening rings, each tightening ring comprises a disconnected annular piece and a locking piece capable of locking the annular piece along the disconnected position, the annular piece is provided with a first end and a second end, and the first end and the second end are provided with a gap. The locking piece comprises a structural rod and a handle, the structural rod can sequentially penetrate through the first end and the second end, the handle is rotatably connected with the connecting rod, and the handle is provided with a protruding part which enables the first end to be close to the second end after rotating around the connecting rod. The stability and the operation convenience of the underwater parallel connection mounting device for the steel pipe piles can be improved. 本实用新型提供一种钢管桩水下平联安装装置，包括两个紧箍以及固定连接两个所述紧箍的连接杆，所述紧箍