Device for introducing soil-improving agents to predetermined soil depths

摘要

The invention relates to a device for introducing soil-improving agents to predetermined soil depths by means of a probe having two sealing sleeves which are mounted slidably on an inner tube, an outlet orifice of the inner tube being located between the two sealing sleeves, and there being provided between the two sealing sleeves a sliding ring having a radially extending discharge bore which is in line with the outlet orifice, and the inner tube being sealed off on its underside and carrying a supporting cap, on which the lower sealing sleeve is supported against downward movements. <IMAGE>