Concrete dispensing boom for concrete pumps

摘要

A concrete dispensing boom for stationary and mobile concrete pumps has a plurality of boom arms, connected to one another at joints, and a concrete conveying line consisting of a plurality of pipe segments preferably connected to one another in an articulated manner via pipe bends and rotary couplings. Said pipe segments run along the individual boom arms and are attached to these boom arms. At least one of the boom arms has a hollow chamber profile which has at least two hollow chambers separated from one another by a separating wall, at least one of which chambers is a closed chamber and one is open at the periphery. The pipe segment allocated to the boom arm concerned is disposed on the opening side outside, partially inside or inside the open hollow chamber.

主权项

1. A concrete dispensing boom for static and mobile concrete pumps, comprising:
multiple boom arms connected to one another at joints, the boom arms being positionable such that the boom arms extend at least partially in a horizontal direction; a concrete delivery conduit comprising multiple pipe segments which are connected to one another by pipe bends and rotary couplings, the pipe segments being guided along and fastened to the individual boom arms; one of the multiple boom arms having a profile defining two hollow chambers separated from one another by a partition, one of the two chambers being closed and the other chamber being open, wherein the pipe segment associated with the one boom arm is arranged outside, partially within or entirely within the open hollow chamber; further wherein:
the open hollow chamber has a trapezoidal or triangular cross section;the one boom arm has a box-shaped form;the partition is set back in the open hollow chamber; andthe partition comprises a first side wall and the one boom arm comprises a second side wall parallel to the first side wall, the second side wall delimiting the closed hollow chamber, the open hollow chamber being defined by the partition, laterally extending portions of the boom arm and a straight line extending from a laterally outer edge of the boom arm above the partition to a laterally outer edge of the boom arm disposed below the partition.