Multi-platform foldable tunnel maintenance operation device

Abstract

The invention discloses a multi-platform foldable tunnel maintenance operation device which comprises a balancing weight, a telescopic arm, a first operation platform and a variable-amplitude operation mechanism. The telescopic arm comprises a basic arm and an unfolding arm; one end of the basic arm is connected with the balancing weight; the other end of the basic arm is slidably connected with the unfolding arm; a first rotating mechanism is arranged at the bottom of the basic arm; the free end of the unfolding arm is fixedly connected with the variable-amplitude operation mechanism; and theinner side of the free end of the unfolding arm is rotatably connected with one end of the first operation platform through a second rotating mechanism, so that the first operation platform can be unfolded in the horizontal direction, and the variable-amplitude operation mechanism can be unfolded in the vertical direction; in the folded state, the length direction of the first operation platformand the variable-amplitude operation mechanism is the same as the direction of the telescopic arm; and the variable-amplitude operation mechanism comprises a plurality of operation platforms which aredistributed in a stepped mode when being unfolded. The device is large in operation coverage, large in bearing capacity, capable of achieving half-section simultaneous operation, high in operation efficiency, high in safety, small in carriage folding area, simple in structure and low in cost.

Description

technical field [0001] The invention relates to a multi-platform foldable tunnel maintenance operation device, which belongs to the technical field of tunnel maintenance. Background technique [0002] With the advancement of science and technology, the number of highway tunnels is increasing, and even the growth rate of tunnels is higher than that of the expressway itself. Tunnels are limited by geological conditions, design and construction technical conditions, and there are many problems. Judging from the completed highway tunnels, water seepage, lining cracks, arch back voids, insufficient lining thickness, and deterioration of concrete strength are more serious. At present, some road tunnels are in a sub-healthy state with disease development, and many tunnels have entered the maintenance and repair period. The contents of common tunnel maintenance include: maintenance of civil works (lining cracks, water leakage, etc.); maintenance of lighting, ventilation, and monit...

AI Technical Summary

Problems solved by technology

The height of the tunnel maintenance work is below 2 meters without the use of the operation platform, but the position above 2 meters cannot be realized without the use of the operation platform, and the construction workers can only be transported from the ground to the high tunnel surface with the help of scaffolding or ordinary aerial work vehicles

The height of the temporary scaffolding is fixed and cannot be adjusted. The connection of the scaffold is unstable and shakes violently. The safety of the workers is not guaranteed and the working efficiency is low.

Ordinary aerial work vehicles have small work buckets and small carrying capacity, so they can only work point-to-point, and the work efficiency is low; during operation, the boom structure rotates beyond the width of the vehicle body and occupies two lanes, which affects vehicle traffic

Images