| 摘要 |
A construction device having movement structure of a counterweight using a screw is provided to increase the pulling load and to minimize the risk of the overthrow. A construction device having movement structure of a counterweight using a screw comprises: a vehicle(100) in which a working tool is mounted; a counterweight(200) equipped in both sides of the vehicle, and having a joint(210) on the top; a bracket(500) including a joint hole at the height corresponding to the joint, and fixed to a side part of the vehicles; a screw(300) arranged according to the traveling direction of the vehicle, connected at the joint and joint hole of the bracket to be rotatable; and a rail(400) in which each counterweight is sliding combined, fixed on the both side of the vehicle to be parallel with the screw. The each counterweight moves according to the traveling direction by the rotation of the screw. |
