When lifting platform ancient Greek history, Archimedes developed an improved lifting device operated with a rope and pulley fixed lifting platform, it uses leverage to enhance the winch and wire rope wrapped around the column. AD 80, gladiators and wild animals, ride the lift platform to reach the original Coliseum Arena in height. The record includes numerous medieval pulled lifting device for isolated locations and supply patterns. The most famous is located Shengbalamu Greek monastery of the lifting platform. This monastery is located about 61 meters high from the ground on top of the hill, the use hoist basket or cargo net, transporting people and goods up and down. 1203, is located in a monastery in France coast lifting platform mounted on wheels use a huge step, provided by donkey to enhance power, by the rope wound on a huge pillars, weight was lifting up. 18th century, the world entered the first industrial revolution, the mechanical force as a more convenient and efficient power began to be widely used in the lifting platform. During this period, the rapid development of the lifting platform, lifting platform for the development of later played an important role in paving the way. 1743, Louis XV of France authorized a private palace of Versailles counterweight installation personnel lifting platform. In 1833, a system using a reciprocating rod lift miners in the Harz Mountains of Germany. 1835, is called a "winch" with the haulage of lifting platform installed a factory in the UK. In 1846, the first industrial appearance with hydraulic lifting platform. And other lifting devices powered followed soon appeared. In 1854, the United States mechanic Otis invented a ratchet mechanism, in New York trade show demonstrated the safety of the lifting platform. 1889, when the Eiffel Tower was built tower installed in steam-powered lifting platform, after switching to the elevator. In 1892, Chile 利阿斯蒂列罗 mountain lifting equipment is completed, until now, the lifting platform 15 110 years ago, still using mechanical equipment. Important safety components lifting platform fall prevention safety device is a component on the construction elevator important to rely on it to eliminate hoists fall accidents occur, to ensure the safety of the occupants. Therefore, the anti-fall safety device factory test very strict inspection before delivery by the legal unit of measure it torque, the critical speed measurement, measurement of the amount of compression springs, each is accompanied by a test report on the construction of the lift assembly After falling under the rated load test aerial lift platform, and use the elevator on the site must drop test will be carried out once every three months. Two years for the factory anti-fall safety device (anti-fall safety device on the date of manufacture) must also be sent to the statutory inspection unit testing, later tested once a year. So far very few people will be inspected, and some sites even tested once every three months, do not drop test, consider themselves anti-fall safety device is no problem, but once out of the accident to regret. Why not follow the system of periodic testing and inspection of it? Blindly believe that the use of units is not bad even better. In fact, fall protection safety device is good or bad only by trial and inspection in order to determine the quality of the daily operation is unable to determine whether it is good or bad, for those who fall protection safety device extended service, it was suggested earlier and periodic inspection test as well, only to be aware of in order to accidents before they happen. Lift the safety switches are designed according to the security needs, fenced door stopper, hanging kennel limit, Dingmen limit, limit switch, upper and lower limit switches, protection against heavy anti-broken rope switch. Some on the site in order to save some of the cancellation and after artificial limit switch shorted or damage is not repaired in time, which is equivalent to cancel a few line of defense, planted accidents. Example: To load long cage thing, hanging cage does not fit the needs extend outside the cage lifting platform, artificially limit or cancel the door stopper forehead lift platform manufacturers in the above safety facilities, inadequate or incomplete under good circumstances, still manned loading, such illegal operations be taking life a joke, in order to avoid the occurrence of accidents, want to use the unit leaders to strengthen management and strict requirements lift maintenance and operations personnel regularly check the safety and reliability of various safety switches, to prevent accidents. Kunming lifting platform lifting platform manufacturers _ _ Constant crane lifting equipment from Xinxiang, Xinxiang City Constant crane lifting equipment Limited. Xinxiang City Constant crane lifting equipment Limited (www.xxhlqz.com) strong, credible, Xinxiang in Henan Province hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xinxiang Constant lifting equipment and lifting you hand into the brilliant, for a better future!