Pipeline protection device, cantilever crane system and concrete spraying vehicle

Abstract

The invention provides a pipeline protection device. The device comprises a shield A, a shield B, a shield C, a bracket A, a bracket B, a bracket C and a bracket D, which are connected onto a cantilever crane; a pipeline is sequentially arranged in the shield C, the shield B and the shield A along the cantilever crane from the front end to the rear end; the rear end and front end of the shield C are fixedly connected onto a small arm respectively through the bracket D and the bracket C; the rear end of the shield B is movably connected onto the shield C; the front end of the shield B is fixedly connected onto a rear telescopic boom through the bracket B; the rear end of the shield A is movably connected onto the shield B; the front end of the shield A is fixedly connected onto a front telescopic boom through the bracket A; the shields can synchronously stretch and retract along with the telescopic booms. The device provided by the invention can be used for effectively protecting the pipeline and the service life of the pipeline is effectively prolonged. The invention further correspondingly provides a cantilever crane system and a concrete spraying vehicle.

Description

technical field [0001] The invention relates to the field of construction equipment, in particular to a pipeline protection device, a boom system and a concrete spraying vehicle. Background technique [0002] The pipelines (such as hoses and control cables used to transport media such as hydraulic oil) on the boom system of the concrete shotcrete truck in the prior art are mostly arranged as follows: figure 1 the way shown. Among them, the pipes used for the boom frame of the concrete spraying truck are all hose lines within the expansion and contraction range of the boom frame. Highly susceptible to damage and short service life; this increases component costs and seriously affects construction schedules. In addition, the hose line is suspended on each telescopic arm through a chain, and a certain length of hose line is reserved between two adjacent suspension points. This installation structure causes the hose line to swing freely when the concrete sprayer is in operati...

AI Technical Summary

Problems solved by technology

This installation structure causes the hose line to swing freely during the operation of the concrete sprayer, causing hanging between the hose lines or between the hose line and other objects, damaging parts, and possibly injuring people.

Images