Shear-fork type lifting device for aerial work platform

Abstract

The invention discloses a shear-fork type lifting device for an aerial work platform. The shear-fork type lifting device for the aerial work platform is characterized by comprising a shear-fork type lifting structure and a work platform. The shear-fork type lifting structure comprises upper shear-fork units, lower shear-fork units and a lifting oil cylinder. The multiple upper shear-fork units are sequentially hinged from bottom to top, and the multiple lower shear-fork units are sequentially hinged from bottom to top. A wiring pipeline structure is arranged on the shear-fork type lifting structure. The wiring pipeline structure comprises wiring hard pipes, wiring flexible pipes and control wires used for controlling the work platform. The wiring hard pipes are fixed on the shear-fork type lifting structure. On the premise of guaranteeing the lifting height, by reducing the thickness of the upper shear-fork units, the weight borne by a lifting hydraulic cylinder is lowered, the efficiency and the safety of a device are improved, and the control wires can be well protected in the wiring hard pipes.

Description

technical field [0001] The invention relates to a lifting device of a scissor type aerial work platform. Background technique [0002] Aerial work platform is a product that serves mobile high-altitude operations such as aerial work, equipment installation, and maintenance in various industries. The related products of aerial work platforms mainly include: scissor-type aerial work platforms, vehicle-mounted aerial work platforms, articulating-arm aerial work platforms, self-propelled aerial work platforms, aluminum alloy aerial work platforms, and cylinder-type aerial work platforms. An existing aerial work platform includes a driving chassis and a lifting device, the driving chassis includes a chassis, a traveling device and a leg structure, and the lifting device includes a scissor-type lifting structure and a working platform, the existing aerial work platform The lifting device has the following problems: 1) The scissor lifting device is assembled by stacking the scisso...

AI Technical Summary

Problems solved by technology

Due to the increasing working height of the existing aerial work platforms, the weight of the lifting device is also increasing, resulting in the lifting cylinder needing to withstand greater working pressure. In order to ensure the stability of the work, it is necessary to set up an auxiliary lifting cylinder. Auxiliary support, resulting in higher equipment costs

[0003] 2) The control button on the working platform of the scissor-type aerial work platform is connected to the control module on the bottom chassis through the control line. In the existing installation structure, the control line is not protected by a hard shell, and the control line is easily damaged.

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