| 摘要 |
The present invention relates to a fastening device of an inking line bottle which forms a through hole on a slab to efficiently perform a vertical measurement between an upper and a lower floor when constructing various buildings. A moving shaft penetrating the inking line bottle and a mold for constructing the slab is rotated in one direction to elastically unfold a latch disposed on a lower end of the moving shaft in a direction perpendicular to an axial direction of the moving shaft or fold the latch in a direction identical to the axial direction of the moving shaft to install or remove the inking line bottle to reduce manpower, improve work efficiency, and exhibit excellent operational reliability. |
