Telescopic excavation arm and multifunctional rescue vehicle

Abstract

The invention discloses a telescopic excavation arm for a multifunctional rescue vehicle. The telescopic excavation arm comprises a bucket rod support, a bucket rod cylinder, a telescopic arm assembly, a telescopic cylinder, a bucket cylinder, a rocking bar, a pull rod assembly and a bucket. The telescopic arm assembly comprises a bucket rod and a telescopic arm which are connected in a nested mode. Through the telescopic arm, when the telescopic arm stretches out, the overall length of the excavation arm is increased, and the front portion of the excavation arm can extend to a farther place to work, and the working efficiency is improved. When the telescopic arm retracts, the overall length of the excavation arm is not changed, and the excavation arm cannot occupy more space. The structure of the telescopic arm can guarantee that the telescopic arm and the bucket rod can be closely attached to each other all the time without a large gap when conducting excavation, reserve bulldozing and raising. Accordingly, the conditions of chattering and joggling are avoided.

Description

technical field [0001] The invention relates to the technical field of emergency rescue, in particular to a telescopic excavating arm and a multifunctional emergency rescue vehicle. Background technique [0002] In emergency rescue situations such as earthquakes, mudslides, building collapses, landslides, and landslides, excavation is often required to excavate and stack materials to complete road clearance, dredging of dammed lakes, rescue of buried people and objects, and cleaning of ruins, etc. Work. Therefore, the emergency rescue vehicle is equipped with an excavating arm. Due to the limited working environment of the general rescue site, the whole machine is required to be as compact as possible and the working range as large as possible. Therefore, most rescue vehicles will be equipped with telescopic excavating arms. In special working environments limited by working radius and deep digging range, it can Flexibly increase or decrease its operating radius and vertic...

AI Technical Summary

Problems solved by technology

[0003] At present, during the work of the telescopic excavating arm, especially when the bucket is used for bulldozing and lifting work in the reverse direction, due to the unreasonable structure, the telescopic arm is subjected to an upward force near the end of the stick, causing the telescopic arm to be close to the end of the stick. Tilting, so that the excavator arm will chatter and shake

[0004] The prior art has the following disadvantages: the current structural scheme of the telescopic excavating arm does not solve the vibration and shaking situations

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