CLEANING DEVICE FOR DRILLING ROD OF DRILLING MACHINE

摘要

PURPOSE: A washing device for an excavation rod of an excavator for ground improvement is provided to prevent a cement supply path from being blocked by rapidly washing an Y-pipe and an excavation rod after the supply of cement. CONSTITUTION: A washing device(100) for an excavation rod of an excavator for ground improvement comprises an injection pipe(110), an elbow(120), a connection pipe(130), and a pump(140). The injection pipe is coupled to the top of an Y-pipe(20) and is extended to the inner side of an excavation rod. Multiple injection holes(111) are formed on the outer surface of the injection pipe. The elbow is connected to the top end of the injection pipe. The connection pipe is connected to the elbow. The pump is connected to the connection pipe and is coupled to the elbow. And the pump supplies air and water to the injection pipe.