Device for fixing hydraulic pipe of boom swing type excavator

A hydraulic pipe fixing device of a boom swing type excavator, which includes a swing support swingably connected to a front end portion of an upper swing structure, and a work apparatus rotatably fixed on the swing support, the hydraulic pipe fixing device comprising:

• a first hydraulic pipe support hole formed on an upper plate of the swing support;
• a hydraulic pipe coupler fixedly mounted inside the first hydraulic pipe support hole;
• a second hydraulic pipe support hole formed on an upper plate of the upper swing structure at a position corresponding to the first hydraulic pipe support hole;
• a first hydraulic pipe having one end connected to the hydraulic pipe coupler and the other end connected to the work apparatus, the first hydraulic pipe being configured to be vertically moved according to a shaking or jerking movement of the work apparatus relative to the upper swing structure;
• and
• a second hydraulic pipe having one end connected to the hydraulic pipe coupler and the other end connected to a control valve mounted inside the upper swing structure, the second hydraulic pipe being configured to be horizontally moved according to a pivotal rotation of the work apparatus relative to the upper swing structure.