A safety engineering vehicle

Abstract

The invention discloses a safe engineering truck which comprises a chassis, an upper rotating disc rotationally mounted on the chassis and a control device. The safe engineering truck is characterized in that a work arm assembly is rotationally arranged on an upper rotating seat; one end of a lifting assembly is hinged to the upper rotating seat, and the other end of the lifting assembly is hinged to the work arm assembly and pushes the work arm assembly to move up and down; the upper rotating seat comprises a cab which can slide front and back relative to the upper rotating seat through a sliding mechanism, and when work arms rotate, the cab slides front and back, so that up-down movement of the work arms is allowed, or the view range is widened.

Description

technical field The invention relates to an engineering machine, in particular to a safety type engineering vehicle of the engineering vehicle. Background technique Engineering vehicle is an important mechanical equipment in engineering construction. It is widely used in transportation, civil construction, mining and municipal engineering. It is an important engineering machinery commonly used in various earthwork projects. In general, a construction machine such as a construction vehicle is generally connected to a multi-joint type working machine including a boom, an arm, and the like, to its upper revolving body so as to be capable of pitching and moving. Install buckets, crushers, crushers, grabs, etc. on the front end of the bucket arm so that it can swing up and down freely, and perform dismantling construction, civil engineering construction, etc. Such as Chinese patent application number 201110394165.8, published on July 11, 2012, the name of the invention is an ex...

AI Technical Summary

Problems solved by technology

However, because the shovel and bucket often need to move up and down during the operation process, and sometimes even need to rotate, the driver's vision in the cab is easily disturbed and blind spots appear.

As a result, the driver often cannot clearly understand the current working conditions of the excavator and the surrounding environment, which will easily lead to a decrease in operating efficiency and even some engineering accidents

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