Architecture has a long history of development. As early as the Paleolithic Age, Chinese primitive people began to use caves as shelters. With the development of the times and the progress of civilization, contemporary people are increasingly demanding living places.
Most contemporary people choose floors when building houses. In the countryside, most of them are bungalows, two-storey buildings or three-storey buildings. Affected by the surrounding environment, most of the residential houses in the countryside are not too high. But in cities, most of the new buildings are 20 or 30 stories or even higher. With the development of urbanization, the urban population is increasing and the area of urban construction land is increasing. In order to save land resources, the floors are getting higher and higher.
So in the process of building construction, hand-pulled hoist plays an important role. The power supply in the newly constructed place is usually unstable, while hand chain hoist can work in the environment without power supply, and the load of hand chain block is large, its force is small, and the hoisting operation can be completed quickly.It can not only improve work efficiency, but also enhance the safety of work.