Concrete pump truck and arm support thereof

Abstract

The invention provides an arm support of a concrete pump truck, which can be folded and unfolded. The arm support of the concrete pump truck comprises seven sections of arms which are hinged in sequence. The seven sections of arms are basically arranged into five mutually staggered straight lines, and at least the last two sections of arms are on the same straight line. Because the seven sections of arms are basically arranged into five mutually staggered straight lines, the overall size of the arms can be greatly reduced, and the requirements of the road running condition of the concrete pump truck can be easily met. In addition, when the arm support is folded, the last two sections of arms are on the same straight line, thus the flexibility and the operability of the arm support fabric can be greatly improved. The invention further provides the concrete pump truck with the arm support.

Description

technical field [0001] The present invention relates to conveying equipment for concrete or other building materials, in particular to a boom of a concrete pump truck and a concrete pump truck including the boom. Background technique [0002] Concrete delivery pump truck (also referred to as "concrete pump truck" or "pump truck") is to install the concrete pump and folding boom on the chassis of the car, and lay concrete delivery pipelines along the boom, and finally output through the end hose Concrete conveying machinery. The folding boom has a folded state and an unfolded state. In the folded state, the boom is folded and put on the chassis so that the pump truck can drive on the road. In the unfolded state, the jib is extended to pour concrete from a distance. [0003] Knownly, the folding forms of the jib mainly include R-shape, Z-shape and RZ-shape. The R-shaped folding means that the multi-section boom section is folded in one direction, such as clockwise, and unf...

AI Technical Summary

Problems solved by technology

[0004] In order to increase the conveying distance of concrete, we can only choose to increase the length of each boom section without increasing the number of boom sections. However, this method reduces the flexibility and operability of the boom on the one hand, and on the other hand , due to the increase in the length of the boom section, the cross-sectional size of the boom section has to be increased accordingly, which will still lead to an increase in the overall size of the pump truck to a certain extent, which is restricted by road driving conditions

Images