If you do not consider the appearance, in fact, the door and lock design is very functional, except film, literature or the game works with special visual needs, the design of the door or from the most convenient, safe and sturdy needs, whether it is side door, revolving door, sliding door or shutter doors, are true. But in some special needs, there are a number of door design is also very interesting, which also has more interesting organ.
The first automatic door is the 1st century AD, the ancient Greek scholar, Hero of Alexandria designed an automatic door, with "engine" to drive: the fire on the altar of brass is heated in a sealed container, the container by air after the thermal expansion of the water discharged into the adjacent vessel similar to the weight of water gravitational dynamic ropes and rollers, driven by the open door of the and after putting out the fire of the altar, negative pressure water sucked back door shut on it. This is often used for worship and other more solemn ceremony. Later, he also used the same way the opening and closing gates.
Hiro is a well-known mathematician, but also a great inventor, and even the earliest records available by the steam-driven machine is invented by him.
Chinese Sui Dynasty when invented the world's first foot up can open automatic doors. This is also the first "automatic door arch device" is the Emperor ordered craftsmen to the palace of the Academy "Perspective and the house" built. Hatchback have 12 Random House, every 3 to open a door. To have buried bodies after Zhang Yuan from a door where authorities stepped on, there will be wood fairy (statue Feixianguan) at Court, "while holding the mantle rise, combined fan that is open, also open bookcase, if Nature the force all of a machine, "Jin opened the mantle, inside the door half open, all the synagogues book bookcase books boxes while also fully open. Presumably one of the mechanical design is very clever. Before the arrival of the Emperor, ladies hand "incense" front when he walked toward the entrance, these ladies will go and depressed the trigger organ in front of him, when the Emperor left the book together, authority is triggered again everything is restored to its original closed state. "Taiping" in this are well documented.
Of course, there is such a record in the history books: East YuanDi Daxing (318-321) years, a Mingjiao Ou net Hengyang people, there is a substantial ingenuity, "made of bamboo room, living as a woman in which its people buckle households, women account out when households Zaibai also home inside, close the doors "; Qi Wu Chengdi time, Zhao Ling monk who" made Qibao Mirror ", do a puppet woman holding a door lock, "to the next level, thirty-six moment autistic. If this pump off, open all doors and salty." The woman shut the Executive, through other transmission machinery connected to and controls the stage in the 36 wickets. However, these are toys, or with real doors are different.
Ancient Arabia also has designed the organ builders automatic doors. A Muslim scientist hundred arts (ie ancient proficient in all types of knowledge and skills of the people) Al Ghazali (Al-Jazari) very good use of water, designed by water power driven toys, automatic doors and water clock. Automatic door is brought by water potential (ie, gravity) and buoyancy-driven, and he used it in a pouring device, the following chart, the left inflow of water from the buoyancy of the following means push up, driven from puppet automatic door out.
Now there are so few automatic doors about the principle:
1. gravity sensor.
2. The light sensor. Above the automatic door will cast a faint light, with the sensors work. If the light is blocked, then the door will open.
3. Move the sensor. Radar emits very low power microwave (acoustic), in front of the probe whether the object / person come and go, a bit like a bat.
In Ancient Greece, China and the Arab world as well as various types of invention "clever but useless" different Western Christian society pay more attention to the aesthetic color of the door, decorative top under a relatively large effort, but the mechanical aspects of the device there is not much innovation a. But there will be some interesting inventions in functionality.
For example, there is a gate called "Dutch door", it was divided into two parts, the upper part is independent of the switch. That is, after opening, people can talk, handed something to be ventilated, but not out. This gate in 16th and 17th century Dutch very common, while maintaining ventilation in order to prevent animals and sand into the room, health conditions are relatively poor, but crowded early town very useful. Later, on the railway in North America, often using such doors on the train, which the conductor can easily communicate with the staff inside the station, but also to avoid falling out of their own train.
In the old House and estate, there are also hidden door design. That is the door into the wall coverings, wallpaper, shelves, or whatever decoration among it "can not see." In general, the design will manor houses such doors in maid, chamber and other places. Some hidden door is quite hidden.
But when it comes true "innovation" or the Evolution Door (evolution door) is really cool new way to open the door to the creation of a door. It looks like a two door magically separated and then closed. Austria Klemens Torggler designers invented the concept of the door, two points, in the middle there is a magnetic strip, the upper portion of the lower side and two at the front door off, specific see below:
Its inspiration may come from the following design of the door: behind an X-type bracket, the upper and lower fixed door leaf can be rotated about the fulcrum. Stent length the same principle so that the door can be opened and closed within a certain range, will not run around.
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