| 摘要 |
A locking element for a dispenser for discharging a medium, with: .cndot. an insert body, which has an outlet channel and an exit opening for the medium to be discharged, and .cndot. a piston element which has a piston head co-operating with a piston seat and at least one elastic telescopic leg, characterised in that .cndot. a sealing element is arranged in the outlet channel, which forms the piston seat, and .cndot. the piston element with the at least one telescopic leg is arranged in an enlarging channel portion of the outlet channel, wherein the piston head is pre-tensioned against the piston seat and is pushed out of the piston seat by the exiting medium.
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