Instantaneous Safety Gear: The Silent Guardian of Elevator Safety​

When an elevator is in danger of overspeed or losing control, what stands in the way of disaster? It’s the instantaneous safety gear, a silent guardian of elevator safety.​

What is an Instantaneous Safety Gear?​

The instantaneous safety gear is a vital safety device in elevators. Its main function is to quickly brake the elevator car when the elevator overspeed exceeds a certain limit or other dangerous situations occur, preventing the elevator from falling and ensuring the safety of passengers.​

Working Principle​

The instantaneous safety gear achieves braking by utilizing the friction between wedge blocks or other braking elements and the guide rail. When the elevator speed exceeds the set safety value, the speed limiter triggers the safety gear. At this moment, the wedge blocks in the safety gear will quickly clamp the guide rail under the action of external force. The friction generated between the wedge blocks and the guide rail will slow down and stop the elevator car in a short time.​

Characteristics​

• Rapid braking response: As the name suggests, the instantaneous safety gear can respond and brake in an instant when a dangerous situation occurs, leaving almost no time for danger to expand.​
• Large braking force: It can generate sufficient braking force to stop the elevator car quickly even when the elevator is loaded.​
• Reliable performance: It is designed and manufactured in strict accordance with relevant standards, with high reliability, and can play a role stably in various harsh environments.​

Application Scope​

Instantaneous safety gears are generally applicable to elevators with relatively low speeds, such as residential elevators and some cargo elevators with low speed requirements. For high-speed elevators, other types of safety gears with more complex structures and better performance are usually used.​

Installation and Maintenance​

The installation of the instantaneous safety gear must be carried out by professional and technical personnel in accordance with the design specifications and installation procedures to ensure that its position and connection are accurate and firm. In terms of maintenance, regular inspections should be carried out to check whether the components of the safety gear are worn, rusted or loose. If any problem is found, it should be repaired or replaced in time to ensure that it can work normally when needed.​

Conclusion​

The instantaneous safety gear is an indispensable part of elevator safety systems. It silently guards the safety of elevator operation with its rapid response and reliable performance. With the continuous development of elevator technology, the performance of instantaneous safety gears is also constantly improving, providing more solid protection for people’s travel safety.​