Injection tool and a method for injection

Abstract

This invention relates to an injection tool which comprises a longer smaller diameter pipe assembled movable inside a shorter larger diameter pipe, a connection piece assembled at the first end of the smaller diameter pipe, a projecting part connected to the smaller diameter pipe near the connecting piece, the projecting part having an opening or groove for a bolt, a projecting part connected near to the first end of the larger diameter pipe the projecting part having threaded opening for the bolt, the bolt connecting the projecting parts and the bolt having a fixed stopper plate, a nose piece assembled to the second end of the smaller diameter pipe, a press plate assembled to the second end of the larger diameter pipe and a sealing rubber around the smaller diameter pipe situated between the nose piece and the press plate. This invention also relates to a method for injection which comprises the steps of entering the injection tool to the borehole, tightening the injection tool to the borehole, connecting the injection machine to the injection tool, starting the injection, and an forming automatically functioning valve to the nose piece at the second end of the injection tool.

Dependencies are inferred from the claim text.