Fluid injection device for building works has injection pump pumping fluid through pressure line in borer into injection channel which exits at borer tip for combined boring and injecting

摘要

The injection device has a boring tool (10) with drive (11) and an injection pump (30) for pumping the injection fluid (35) through a pressure line (15) into the injection channel (25) which runs axially through the borer (20) to which the pressure line is attached to exit at the borer tip (21). The borer is surrounded by an annular bore hole seal (40) which can be a conical rubber element tapering towards the borer tip. The injection pump can supply injection fluid or cleaning fluid as required.