Why don't the elevator put a buffer plate in the bottom of the car (spring is under the buffer iron plate), and put some rings in the pride
The rings are generally not installed, replaced by the wire rope end fixed device spring, which is why people jump in the car or the elevator suddenly power failure, braking when the elevator up and down the reasons for shaking.
Energy storage type is generally used for elevators with rated speed below 1.0m/s. Energy dissipation type can be used in elevators of various speeds, and electrical verification devices must be provided.
Buffer plate you said, the elevator is there, in the pit, general for polyurethane, (which is called the spring energy storage type) or hydraulic type (energy type), play a protective role in the car fell to the bottom of pit.
