| 摘要 |
The invention relates to an injecting hose for construction joints on concrete structures, having a liquid-permeable cylindrical wall, a holding body, for example of helical design, and, if necessary, a protective sleeve surrounding the holding body. In such an injecting hose, reliable sealing against penetration of liquid from the outside inwards, but easy opening under the introduction pressure of the injection liquid is to be ensured. This is achieved with the invention by the fact that the cylindrical wall consists of a soft liquid-impermeable rubber or rubber substitute, is arranged inside the holding body and has a longitudinal gap which extends over its length and is kept closed in the holding body, in the manner of a lip seal, before the introduction of the injection fluid and is to be opened under the introduction pressure of the injection liquid with resilient yielding of the correspondingly soft wall material defining the longitudinal gap.
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