Regularly inspect and repair elevators to ensure passenger safety

Nowadays, "manufacturing defects", "overage service", "maintenance is a formality" and other reasons are often important reasons for elevator accidents. What I want to introduce to you is the elevator inspection and maintenance system.

1. Regular maintenance of elevators

The regular maintenance and daily maintenance of elevators should be carried out by professionals, and according to different inspection and maintenance intervals and the requirements of the content of the maintenance items, the maintenance work is often divided into three types: weekly inspection, quarterly inspection and annual inspection.

1. Weekly inspection: The main mechanism and equipment of the elevator should be inspected every seven days to check the reliability and correctness of its actions, and carry out necessary dust removal, cleaning, lubrication and adjustment.

2. Quarterly inspection: After the elevator has been in operation for three months, its mechanical and electrical installations should be inspected, adjusted and corrected in detail.

3. Annual inspection: When the elevator runs for one year, a comprehensive technical inspection should be carried out to ensure the safety of the elevator.

2. Main institutions and equipment for regular maintenance

The main mechanisms and equipment for regular maintenance of elevators are: traction motor; electric ci brake; traction reducer; traction sheave and guide wheel; speed limiter, safety gear and its accessories; control ping; three-phase bridge selenium Rectifier; traction wire rope and rope head combination; guide rail and guide shoe; end station deceleration, limit switch and limit switch; control box and call button; landing door, car door door interlock and door electric lock switch; automatic door switch ; Buffer qi.

3. Electricity safety requirements during elevator inspection and repair

1. When the elevator is inspected and maintained, a safe voltage below 36 volts must be used. The elevator machine room, the pit of the hoistway, and the top of the car should be equipped with low-voltage power sockets for maintenance.

2. The metal shells of all electrical equipment of elevators should have good grounding: electrical equipment, cabinets, screens, boxes, boxes, slots, and pipes should be equipped with easy-to-identify grounding terminals; the color of the grounding wire should be yellow and green insulated wires; The neutral and ground wires should always be separated.

3. When the elevator is undergoing regular maintenance and test runs, the elevator car must not carry passengers or goods. At the same time, the elevator should be suspended at the door, the control box in the car, the control cabinet of the machine room, etc. Warning signs such as "cannot be activated".