| 摘要 |
The connection has a piston pipe (3) with an end arranged at a formwork unit (5) of a formwork (2) in a closed manner, and a closing piston (7) movable in the pipe. The piston has a front wall that is oriented in a direction of the formwork and movable by an adjusting mechanism (10). A filler neck (4) is connected with a wall of the pipe in an area of the formwork below a spike angle such that the concrete filled in the neck flows into the formwork via the pipe. The piston is movable in the pipe such that the front wall closes the formwork in a formwork-smooth manner.
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