An excavator facilitating cleaning of a wall corner

Abstract

The present disclosure relates to the technical field of engineering construction, and an embodiment of the present disclosure provides a digger facilitating wall corner cleaning, which comprises a connecting large arm, a connecting driving hole is formed in the connecting large arm, a driving rotating assembly is arranged on the connecting large arm, the end of a driving small arm is provided with a bucket, the inside of the driving small arm is provided with a limiting cavity, and the lower end of a positioning shaft is inserted into the limiting cavity. Through the above technical scheme, the technical problem that the small arm of the traditional digger is usually a single-degree-of-freedom linear motion structure (only the pitch angle is controlled through an oil cylinder), the bucket can only make circular motion in a vertical plane, and it is difficult to approach the right angle or the alternate angle area formed by a wall surface and a ground surface is solved. In building construction, river dredging or municipal engineering, the positions such as wall corners and ditch corners are often piled with soil and construction waste. The bucket of the traditional digger cannot go deep into the inside of the included angle, and thus it is necessary to rely on manual use of a shovel, a pick head and other tools for secondary cleaning, which is low in efficiency and increases labor cost.

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