Built-in cantilever frame fully-telescopic detecting device and overhead operation engineering machinery

Abstract

The invention discloses a built-in cantilever frame fully-telescopic detecting device, which comprises a first detecting rod, a second detecting rod and a traveling switch. The traveling switch is mounted on a switch mounting board inside a second cantilever section, the front end of the first detecting rod is mounted on an oil cylinder base inside a fourth cantilever section movably laterally, the second detecting rod is mounted in a slide sleeve of the switch mounting board, a spring is arranged between the front end of the second detecting rod and the slide sleeve, the first detecting rod and the second detecting rod are arranged on the same axis, the rear end of the first detecting rod faces the front end of the second detecting rod, and a retaining board for triggering the traveling switch is arranged at the rear end of the second detecting rod. By the built-in cantilever frame fully-telescopic detecting device, the peripheral space of a cantilever frame can be effectively saved, affection from the external environment is reduced and accordingly reliability and quality of the built-in cantilever frame fully-telescopic detecting device are improved. The invention further discloses overhead operation engineering machinery which is provided with the built-in cantilever frame fully-telescopic detecting device.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a boom full-shrinkage detection device for high-altitude operation construction machinery. The present invention also relates to a high-altitude construction machine provided with the boom full-shrink detection device. Background technique [0002] Construction machinery for aerial work is usually equipped with a chassis, a turntable and a lifting arm. The lifting arm is generally a telescopic boom with a certain load capacity. The length can be changed through the telescopic mechanism, and the operator can control the boom on the ground. Working at heights. [0003] For example, there is a fire water cannon on the top of the boom of the elevating fire truck, and a working platform on the top of the boom of the aerial work vehicle. The operator can control the boom on the console to spray water, transport staff, implement rescue and Other functions for working at...

AI Technical Summary

Problems solved by technology

[0006] This full-shrink detection device is generally arranged on one side of the jib, and the exposed lines will be affected by the external environment, causing the lines to age too quickly, burying hidden dangers of accidents, and endangering the safety of users.

In addition, this external structure will occupy the peripheral space of the boom and affect the layout of other parts of the boom

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