Device to deliver concrete; has flexible hose connected to concrete supply pump with push and pull devices to bend distributor pipe having two rotating joints at different angles

摘要

The device has a flexible hose connected to a concrete supply pump. The hose bends in two hinge planes arranged at an angle to each other and has at least push and pull devices (4,5) acting in the hinge planes. A distributor pipe or hose (6) moves at its input end through at least two joints (2,3), whose rotation axles are arranged on the same plan or on parallel planes at a given angle to each other and are pivoted by the push and pull devices.