Boom apparatus and concrete pump vehicle having same

Abstract

In one aspect of the invention, a boom apparatus includes at least a first boom, a second boom and a third boom sequentially connected to one another, wherein a root end of the first boom is connected to a turntable, some of the booms is a bent boom occupying at least two column spaces, and when the booms are in a folded state, the boom apparatus occupies at least three column spaces. The invention also provides a concrete pump vehicle having the boom apparatus.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation application of International Patent Application No. PCT / CN2012 / 074036, filed Apr. 14, 2012, entitled “BOOM DEVICE AND CONCRETE PUMP TRUCK”, by Shihui Xie et al., which itself claims the priority to Chinese Patent Application No. 201110322355.9, filed Oct. 24, 2011, entitled “BOOM APPARATUS AND CONCRETE PUMP VEHICLE HAVING SAME”, by Shihui Xie et al., the disclosures for which are hereby incorporated herein in their entireties by reference.FIELD OF THE INVENTION[0002]The invention relates generally to the field of construction machinery, and more particularly to a boom apparatus, and a concrete pump vehicle having the boom apparatus.BACKGROUND OF THE INVENTION[0003]A concrete pump vehicle is equipment that delivers concrete along a pipeline to a location required by construction works. In operation, the concrete pump vehicle needs to deliver concrete to a specified location through a delivery pipe fixed on...

AI Technical Summary

Benefits of technology

The invention is a boom apparatus for a concrete pump vehicle that can be folded to optimize arrangement and decrease the folding height of the vehicle. Compared to prior art, the invention allows for more booms in a limited space, decreases the overall length of the vehicle, and reduces the minimal unfolding height of the boom apparatus. The arrangement manner takes advantage of spaces on both sides of the vehicle body, increasing the utilization rate of the transverse space and facilitating the arrangement of more column booms. The boom apparatus includes at least four booms, with each boom being a bent boom, and the bending directions of the bent segments of the booms are opposite to each other. This allows for an increase in the length of the boom by reasonably setting the positions of the bent segments and a column position where a telescopic cylinder is.

Problems solved by technology

Currently, when the length of the booms needs to be increased, due to the limit of the overall length of the concrete pump vehicle, the length of a single boom cannot be increased unlimitedly.

It is currently adapted that boom sections are directly added to the fourth boom, which can make the overall height of the booms increased, and however is not conducive to implementation of multiple boom sections such as six booms.

Meanwhile, when the working space of the concrete pump vehicle is small, increase of the length of the single boom makes it more difficult for unfolding and working

Therefore, a heretofore unaddressed need exists in the art to address the aforementioned deficiencies and inadequacies.

Images