Parallel folding type movable arm and bucket rod device

Abstract

The invention relates to a parallel folding type movable arm and bucket rod device. The parallel folding type movable arm and bucket rod device comprises a movable arm, a bucket rod, an installing part and a tool connecting part and is characterized in that the movable arm is a straight arm, the bucket rod is of a structure with the upper middle portion slightly bent outwards, the bucket rod is rotationally connected to the thin end of the straight arm, a bucket rod oil cylinder used for driving the bucket rod to act is arranged on the outer side of the thick end of the straight arm, a lifting oil cylinder used for driving the movable arm to lift up is arranged on the inner side of the thick end of the straight arm, the thick end of the movable arm and an oil cylinder base of the lifting oil cylinder are both installed on the installing part, and a working oil cylinder used for driving the tool connecting part at the end of the bucket rod to act is arranged on the outer side of the bucket rod. The parallel folding type movable arm and bucket rod device is scientific and reasonable in structural design, has the advantages of being good in folding effect, small in occupied space, convenient to transport and large in working range, and has high innovativeness.

Description

technical field [0001] The invention relates to a boom arm device on a special vehicle, in particular to a parallel folding boom arm device. Background technique [0002] Booms and sticks are working devices on special vehicles (such as excavators, emergency rescue vehicles), usually also called booms and small arms. action of the handicap tool. The longer arm connected to the frame is called the boom; the shorter arm connected to the bucket is called the stick. [0003] During the use of ordinary boom stick devices, especially in the transportation state, due to the certain bending angle of the boom, the boom and stick cannot be effectively folded together, which requires a large transportation space, and When the boom is raised to the highest point, due to the bending, the effective height of the boom is reduced, which greatly limits the working range of the boom stick. Contents of the invention [0004] The object of the present invention is to provide a parallel fol...

AI Technical Summary

Problems solved by technology

[0003] During the use of ordinary boom stick devices, especially in the transportation state, due to the certain bending angle of the boom, the boom and stick cannot be effectively folded together, which requires a large transportation space, and When the boom is raised to the highest point, due to the bending, the effective height of the boom is reduced, which greatly limits the working range of the boom stick

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