Passenger Elevator Factory Shares The Characteristics Of Fall Protection
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The elevator safety protection device is very important, because once an elevator accident occurs, the passenger elevator safety protection device can play a very good role in protection. However, when we are performing elevator construction, the elevator installation personnel may have some risk of falling, because the elevator installation is a vertical installation from top to bottom, so today Passenger Elevator Factory will introduce you to the elevator anti-personnel shear What are the cut and fall protection and requirements.
1. Related facilities meet safety standards
Car doors and landing doors must be equipped with electrical safety contacts that verify the closed state of the doors as required and remain valid. After the door is closed, the gap between the door leaf and between the door and the surrounding structure shall not exceed the specified value. In particular, the stop wheel under the landing door pulley should be adjusted frequently to prevent the gap under the center gate from being too large. The door lock must meet the requirements of safety regulations and pass the type test. The strength and depth of engagement of the locking element must be guaranteed. Electrical safety contacts must meet the requirements of safety regulations, and ordinary electrical switches must never be used. Wiring and installation must be reliable and prevent malfunction due to electrical interference.
2. Protection against elevator overspeed and rope breakage
The elevator will cause the car to overspeed and fall due to control failure, insufficient traction, insufficient brake or insufficient braking force, and overloaded drag rope breakage. Therefore, reliable protection measures must be taken. The protection device against overspeed and broken rope is a safety gear-speed limiter system. Safety gear is a mechanical device that stops the car (or counterweight) from moving downwards. Any elevator car suspended by wire rope or chain should be equipped with safety gear. When someone can enter the space under the pit, safety gear can also be set for the counterweight. Safety gears are generally installed on the bottom beam of the car frame, and act on the guide rails in pairs at the same time.
3. Rescue device
In the past, the rescue of trapped people in the elevator mainly used the method of self-rescue, that is, the operator in the car climbed from the upper safety window to the car roof to open the landing door. With the development of elevators, elevators without operator control are widely used. It is not only dangerous but also impossible to adopt self-rescue methods. Therefore, the top ten elevator brands have determined from the design that rescue must be carried out from the outside. The rescue device includes an emergency manual operation device of the traction machine and a manual unlocking device of the landing door.
The above content is organized and shared by Fuji Hsed Elevator Factory , hoping to help those in need.
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Last Update : 15 July 2020
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