How do elevators work?(The second part)

elevator The ride is very easy, but if elevator No brakes! We will prefer to use the stairs of the building.

In Cable lifts A few strands of strong steel cable (4 to 8 cables) is used and if one of these cables is cut for any reason, the other cables will bear the weight of the system.
and if elevator Suddenly start to move, the mechanical command system in the pulley wheel, automatically, movement elevator stops.

When the pulley moves at a speed that exceeds the limit (In case of elevator fall) , the anchors open due to the centrifugal property and get stuck to the fixed gear and the pulley stops and stops elevator becomes.

when elevator When it reaches the destination, the mechanical command system is activated again .
On the rails, cables are connected that when stopped elevator (By order of the mechanical command system) are drawn and elevator It gets stuck to the teeth of the rail and stands still.

Elevators They also have an automatic stop system that stops the cab or the balance weight when it is pulled higher or lower than the rails.. If with all these equipment and predictions safety، elevator fall down, in the lower part of the system, there is a very strong spring containing oil filled in a cylinder, which like a pillow protects the passengers from danger.

Note that:Performance#elevator, by doing monthly service and maintenance and #Standardization And #Technical inspection Annual periodic and before operation, #safe becomes!