Design and production of steel structure shafts for sightseeing elevators. According to the size of the civil engineering drawings of the sightseeing elevator, the main beam of the steel structure of the sightseeing elevator below 6 layers can be made of square steel of 150mm×150mm×0.5mm, and the beam is made of square steel of 120mm×80mm×0.5mm. Generally, the external elevators are used. The design of the machine room, according to the top level of the national standard machine room, the minimum height of 4.5 meters, on the top of the steel structure, it is best to use the plastic aluminum plate to avoid the light, so as to protect the host, the elevator pit should be 1.8 meters deep, steel A beam shall be added between the height of the structure of 2 meters. The height of the beam shall be the height of the beam, and a beam shall be added to the decorative floor at 2.35 meters.

　　History development

　　It has been 150 years since the elevator entered people's lives. The ups and downs of the past century and a half are the historical changes. The eternal constant is the commitment of the elevator to enhance the quality of human life.

　　In 1854, at the World's Fair in Crystal Palace, New York, American Eliza Graves Otis

　　For the first time, he showed his invention to the world. He stood on the platform of the lift filled with cargo, ordered the assistant to pull the platform up to the height that the audience could see, and then sent a signal to the assistant to cut off the lift cable of the lift with a sharp axe. Surprisingly, the lift did not crash, but was firmly fixed in mid-air - the lift safety device invented by Mr. Otis played a role. "Everything is safe, gentlemen." Mr. Otis, who stood on the platform of the lift, waved to the people watching. No one would have thought that this was the first safe lift in human history.

　　The history of humans using lifting tools to transport goods and people is very long. As early as 2600 BC, the Egyptians used the most primitive lifting system when building the pyramid. The basic principle of this system has not changed yet: that is, while the balance is falling, the load platform rises. Early lifting tools were basically powered by manpower. In 1203, a crane-powered crane was installed in a monastery on the French coast, which ended the history of manpower transporting heavy loads. After the British scientist Watt invented the steam engine, the crane device began to use steam as the power. Immediately thereafter, William Thomson developed a hydraulically driven lift with a hydraulic medium of water. Based on these lifts, generations of innovative engineers are constantly improving the technology of the lifts. However, a key safety issue China Car Lifts Suppliers has never been resolved, that is, once the lift cable is broken, the load platform must crash.