Range changeable hoisting machine

Abstract

The invention belongs to the technical field of building machinery and provides a range changeable hoisting machine. The range changeable hoisting machine comprises a support assembly, a dragging assembly and an oblique hoisting assembly. The support assembly comprises a bottom plate, a rotating shaft base, a stand column and a rotating shaft. The rotating shaft base is rotationally connected to the bottom plate. The rotating shaft base is located on the upper surface of the bottom plate. The stand column is rotationally connected to the rotating shaft base. The stand column is located on theupper surface of the rotating shaft base. An oblique arm moves through a rotary gear and a toothed plate, so that the length of the whole oblique arm can be changed in an extending and retracting manner. Combination supports of supporting pieces are combined to form a parallelogram, the rotating shaft is located on the opposite short side of the parallelogram, the stand column and the oblique armare located on stand bars of long sides of the parallelogram, so that the change of the included angle between the stand column and the oblique arm is controlled, the oblique arm is extended and retracted in an cooperative manner, the change of the hoisting range of the hoisting machine is carried out, and the hoisting range of the hoisting machine is enlarged.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to a range-changing hoist. Background technique [0002] Lifting machine is a kind of machine that can transfer and change things. It is divided into rotary arm type lifting machine, mobile lifting machine, straight type lifting machine and full-angle type. The main characteristics of lifting machine are: easy to carry and small in size , light weight, compact structure, simple installation; high hanging; fast speed; easy to operate. It is safe and reliable. It is widely used in construction companies, decoration companies, installation companies, lifting companies, and moving companies. It is also a new tool for laid-off workers and migrant workers to get rich with small investment and quick results. It is suitable for self-employment. [0003] At present, the hoisting range of hoisting machines on the market is relatively small. For some items that are ...

AI Technical Summary

Problems solved by technology

[0003] At present, the hoisting range of hoisting machines on the market is relatively small. For some items that are far away, they can only be lifted as a whole, and due to their own gravity, the overall handling is inconvenient, which is not conducive to the expansion of the working range of the hoisting machine.

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