Progressive Safety Gear: A Crucial Safeguard for Elevator Safety

When it comes to elevator safety, one component that deserves special attention is the progressive safety gear. It acts as a reliable safeguard when the elevator is in a state of overspeeding or out of control, playing an indispensable role in protecting the lives of passengers and the safety of the elevator itself.​

Working Principle​

Unlike the instantaneous safety gear that brings the elevator to an abrupt stop, the progressive safety gear operates by gradually increasing the braking force. When the elevator exceeds the set speed or gets out of control, the progressive safety gear is triggered. It utilizes a series of mechanical structures, such as wedges and springs, to generate a braking effect. As the elevator continues to move, the braking force gradually grows, making the elevator slow down steadily until it comes to a complete stop. This gradual braking process effectively reduces the impact on the elevator car and passengers, minimizing the risk of injury or damage to the elevator structure.​

Advantages​

• High Safety: The progressive braking method ensures that the elevator stops smoothly, avoiding the strong impact caused by sudden braking. This greatly reduces the possibility of passengers being injured due to inertia.​
• Less Damage to Elevator Structure: Compared with instantaneous braking, the gradual increase of braking force causes much less damage to the elevator’s guide rails, car frame and other components, extending the service life of the elevator.​
• Stable Performance: It can work stably under various working conditions, ensuring reliable braking effect even in harsh environments.​

Application Scenarios​

Progressive safety gear is mainly used in elevators with higher speeds, such as those in high-rise residential buildings, commercial complexes and office buildings. In these occasions, the elevator runs at a relatively high speed, and the use of progressive safety gear can better ensure the safety of passengers during emergency braking.​

Maintenance and Inspection​

To ensure the normal operation of the progressive safety gear, regular maintenance and inspection are essential. Professional technicians should check the wear of components, the flexibility of the transmission mechanism and the reliability of the braking system. If any problem is found, it should be repaired or replaced in time to avoid failure during use.​

In short, the progressive safety gear is an important part of the elevator safety system. Its unique working principle and excellent performance provide a strong guarantee for elevator safety. We should pay enough attention to it and ensure its good working condition through regular maintenance, so as to protect the safety of every passenger.