| 摘要 |
PURPOSE: A rotary block for a harbor construction work is provided to obtain construction convenience and work safety of the harbor construction work by stably and firmly capturing a block body. CONSTITUTION: A rotary block for a harbor construction work comprises a block body(10), a hollow body(20), a vertical insertion port(21), a rotation chamber, and a grip rod(31). The hollow body is laid under the block body and is formed in order to open the upper part and to close the lower part. The vertical insertion port is formed in the longitudinal direction of the hollow body. The rotation chamber is formed in the lower part of the vertical insertion port and includes a diameter over the long width of the vertical insertion port. The grip rod is inserted into the vertical insertion port and is connected to the block body. The grip rod includes a width expansion unit(32) in the lower part thereof. |
