1. How does the elevator work?
The elevator has a car and a counterweight, which are connected by a wire rope, which is driven by a driving device (a tractor) to move the car and the counterweight up and down on a guide rail in the elevator.
The guide boots fixed on the car can move up and down reciprocally along the fixed guide rail mounted on the building well wall to prevent the car from deviating or swinging during operation. The normally closed block brake releases the brake when the motor is working, making the elevator run and losing power

In case of braking, the car stops lifting and lifting, and maintains its static state at the designated floor station for personnel and cargo access. A car is a body part that carries passengers or other loads and is reused to balance the car load and reduce the power of the motor. Compensation is installed

It is used to compensate the tension and weight change during the traction rope movement, so that the traction motor can have stable load and the car can be parked accurately. The electrical system realizes the control of the elevator movement and completes the work of floor selection, floor leveling, speed measurement and lighting. Indicates a call

The system can display the cage's movement direction and floor position at any time. Safety devices ensure the safety of elevator operation.
2. Will the wire rope of the elevator break?
The wire rope used in elevator is special for elevators, and the country has special provisions and requirements. The configuration of the wire rope is not only to bear the elevator car and rated load, but also to consider the size of the traction gravity, therefore, the tensile strength of the wire rope is greatly greater than

The deadweight of the elevator, their safety factor is above 12, usually the elevator is equipped with more than four wire ropes, under normal circumstances the elevator wire rope is not broken at the same time. The safety factor of the elevator is very high if the wire rope is found broken

The elevator will be deactivated until the wire rope is replaced.
3. Is there any danger of sudden power failure in the elevator?
In case of sudden power failure or power supply line failure, the elevator will stop running automatically without any danger. Because the elevator itself is equipped with electrical, mechanical safety devices, once the power failure, the elevator brake will automatically brake, make electricity

The ladder will not work. In addition, if the power supply department planned power outage, will notify in advance, the elevator or stop the operation in advance. When the elevator is out of power, there are safety tongs under the car, which can jam the guide rail, so that the car is fixed on the guide rail and does not slide off

. Some elevator control cabinets contain an emergency power supply that, in the event of a sudden power failure, is powerful enough to transport the car to the floor and open the door for passengers to get out safely.
4. What if the elevator suddenly speeds up?
The operation speed of the elevator, whether upward or downward, should be within the specified rated speed range, generally will not overspeed, if overspeed occurs, in the elevator control system is anti-overspeed device (speed limiter, when the elevator speed exceeds the rated speed

At 115% of its speed, it will move. At this point, the device will automatically move to slow or stop the elevator.
5. Can elevator car overload be controlled automatically?
The deadweight of the elevator varies according to the need. The elevator can only run within the specified deadweight. If it exceeds the specified deadweight, the elevator will automatically give an alarm and cannot run. There is a special weighing device on the top part of the car, the load can be adjusted.