When was the first elevator made?

About 100 years ago, it seems that the first elevator in China was in Shanghai.

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As early as 2600 B.C., the Egyptians used the most primitive lifting system in the construction of the pyramids, and the basic principle of this system remains unchanged today: that is, a balance is lowered and a load platform is raised.

Around 1100 B.C., the ancients in China invented the roller, which uses the rotary movement of the reel to complete the lifting action, thus increasing the height of the lifting items.

In 236 BC, the Greek mathematician Archimedes designed and built a lifting device consisting of a winch and a block of pulleys. The driving force of these lifting tools is generally human or animal power.

At the beginning of the 19th century, steam engines began to be used as the power of lifting tools in Europe and the United States.

William, 1845. Thomson developed a hydraulically driven elevator with a hydraulically driven medium of water. Although the lifting tools were continuously improved by generations of innovative engineers, the elevator that was universally recognized by the industry did not exist until the world's first safety lift was born in 1854.

In 1854, at the World's Fair at the Crystal Palace in New York, the American Elisha. Graves. Otis showed his invention to the world for the first time.

Standing on a platform full of goods, he commanded his assistant to lift the platform to a height that could be seen by the audience, and then signaled that the assistant had cut the elevator cable with a sharp axe. Surprisingly, the elevator did not crash, but was firmly anchored in mid-air – and the elevator safety device invented by Mr. Otis came into play. "All is safe, gentlemen.

Mr. Otis, standing on the elevator platform, waved to the people around him. No one would have thought that this was the first safety elevator in human history.

In 1889, lifts began to be electrically driven, and elevators really appeared.

One of the first elevators in China appeared in Shanghai, which was installed in 1901 by the American company Otis.

After the Third Plenary Session of the 11th Central Committee, bathed in the spring breeze of reform and opening up, China's elevator industry has entered a period of rapid development. In 1987, Shanghai Sanei Elevator became the first private enterprise in China. Not only that, Sanei Elevator is one of the earliest enterprises in China to obtain the national elevator manufacturing and installation license, and it is also one of the few enterprises that have obtained the "Class A level" qualification.

1. The elevator was invented by Elisha Graves Otis in 1852.

2. Elevator refers to the permanent transportation equipment that serves a number of specific floors in the building, and its car runs on at least two rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15 ° with the plumb line.

3. The original "elevator" is a manpower lifter, and the modern elevator is just a lifter powered by electricity.

The inventor of the ladder "Otis" in 1854, the invention of the elevator A forty-year-old mechanic with an unsuccessful career, with a neat mustache and a top hat, stood on a platform. The platform was suspended high by a cable wrapped around the drive shaft, above the spectators of the 1854 New York City Exposition. Suddenly, Elisha Gravers Odis ordered the cable to be cut.

The audience held their breath. The platform came to a halt after falling a few feet. Otis took off his hat and cheered

Total security, gentlemen, complete security" The elevator was born in this city. Elevators had already appeared before that. But Otis built the world's first safety elevator by designing a spring that embedded two steel teeth into the V-shaped cut of the slideway to prevent the cable from breaking.

The elevator was invented by American Elisha Graves Otis. In 1853, at the World's Fair held at the Crystal Palace in New York, Elisha Graves Otisdi presented his invention to the world, which was the first elevator in human history, which was called the safety elevator at that time.

An elevator is a permanent transport device that serves a number of specific floors in a building, and the car runs on two rigid tracks perpendicular to the horizontal plane or at an inclination angle of less than 15° to the plumb line.

According to the speed, the elevator can be divided into low-speed elevator (less than 4 meters second), fast elevator (4-12 meters second), high-speed elevator (more than 12 meters second) three kinds, in the middle of the 19th century, hydraulic elevators began to appear, mostly used in low-rise buildings.

At the end of the 20th century, the elevator used the permanent magnet synchronous traction machine as the power operation, which greatly reduced the area occupied by the machine room, and was energy-saving, efficient, and fast-moving, which played a great role in the development of real estate in the direction of super high-rise.

In 1887, the American company Otis manufactured the world's first elevator, which was an elevator driven by a DC motor. It was installed in the DeMaris Building in New York in 1889.

There are many firsts in the follow-up elevators, many of which were created by Otis:

In 1902, Schindler Company of Switzerland successfully developed the world's first push-button automatic elevator, which adopted a fully automatic control mode to improve the conveying capacity and safety of the elevator.

In 1900, the American company Otis made the world's first electric escalator.

In 1901, China's first elevator appeared in Shanghai, which was installed by the American company Otis.

In 1932, the elevator installed by the American company Otis in Tianjin Lishunde Hotel is still running safely.

In 1950, Otis built a sightseeing elevator installed outside high-rise buildings, so that passengers can clearly see the surrounding scenery while the elevator is running.

In 1951, the first elevator designed and manufactured by China's engineering and technical personnel was installed in the BJTAM City Tower, and this task was handed over to Tianjin (private) Congqingsheng Motor Factory.