Elevator is an indispensable vertical transportation tool in high-rise buildings. It is a large-scale comprehensive equipment of mechatronics. In order to ensure its safety and reliability, the elevator has set up preventive measures from many aspects, such as electrical safety devices and mechanical safety devices. Among them, electrical safety devices include: power control protection device, power supply phase sequence protection device, door lock electrical interlock device, emergency stop ladder switch, overspeed protection switch, overload protection switch, limit switch, emergency stop switch, safety window switch Wait. Mechanical safety devices include brakes, speed limiters, safety gears, buffers, door hook locks, door safety touch panels, etc. These safety devices can ensure the safe operation of the elevator.
1. How does the elevator work?
The elevator has a car and a counterweight, which are connected by wire ropes. The wire rope is driven by the driving device (traction machine) to make the elevator car and counterweight move up and down on the elevator guide rails.
2. Will the elevator wire rope break?
The state has special regulations and requirements for steel wire rope elevators for elevators. The configuration of the wire rope is not only to bear the elevator car and rated load, but also to take into account the size of the traction. Therefore, the tensile strength of the wire rope is much greater than the load of the elevator, and their safety factor is above 12. Generally, elevators are equipped with There are more than four wire ropes.
3. Is there any danger in a sudden power failure during elevator operation?
If the elevator encounters a sudden power failure or failure of the power supply line during the operation of the elevator, the elevator will automatically stop running without any danger. Because the elevator itself is equipped with electrical and mechanical safety devices, once the power is cut off, the elevator brake will automatically brake, making the elevator unable to run. In addition, the power supply department will notify in advance if there is a planned power outage, and the elevator may stop operation in advance.
4. What should I do if the elevator suddenly speeds up?
The elevator’s running speed should run within the specified rated speed range regardless of whether it is up or down. Generally, it will not exceed the speed. If overspeed occurs, there is an anti-overspeed device in the elevator control system. At this time, the device will automatically start. Decelerate or stop the elevator.
5. Can the elevator car overload be controlled automatically?
The load capacity of the elevator is different according to the needs. The elevator can only run within the specified load capacity. When it exceeds the specified load capacity, the elevator will automatically alarm and cannot run.
6. Will being caught when the elevator closes the door will cause harm to people?
When the elevator door is closing, if the car door touches a person or object, the door will automatically reopen without hurting people. Because there is an anti-pinch switch on the door, once the door touches a person or object, this switch action prevents the elevator from closing, and reopens, and then closes the door again. In addition, the closing force is prescribed.
7. Can the elevator hall door be opened?
The elevator hall door cannot be opened outside the car, it must be opened with special tools (installation tools are controlled by maintenance personnel). Passengers are not allowed to pick up the door, let alone open it, otherwise there is a danger of falling to the bottom of the well.
8. How to call the elevator?
When you need to take an elevator, you should select the direction button you want to go to on the panel of the elevator hall. Press the up arrow button up, and press down the arrow button. The elevator adopts a forward parking method in the control system. If the elevator goes in the opposite direction, the elevator will not stop to this floor.
9. Are there protective measures for elevator squatting and topping?
Elevator squatting at the bottom means that when all the control systems of the elevator car fail, they will overtake the leveling position of the first floor and drive down until they squat on the buffer in the pit and stop. The buffer is a protective device set up for this purpose. This protective device is divided into two types: spring type and hydraulic type, depending on the operating speed of the elevator. When the car squats on the buffer, it is called squat bottom. At this time, the buffer has a mitigating effect on the impact of the elevator car, and will not cause serious damage to the passengers in the elevator.
10. What should I do in the car when the elevator runs abnormally?
When taking the elevator, if you find that the elevator is overspeed or slow, you should press the red emergency stop button on the control panel. The elevator will stop automatically and notify the elevator maintenance personnel in time.
11. What should I do if there is a strange smell in the elevator car?
When an abnormal burnt smell is found in the elevator car, press the red emergency stop button on the control panel to stop the elevator and notify the elevator maintenance personnel in time.
12. What should I do if the elevator is found to have abnormal vibration or scratching?
When you are riding an elevator and find that the elevator vibrates, shakes, or scratches, you should press the red emergency stop button on the control panel to stop the elevator and notify the elevator maintenance personnel in time.
13. What should you pay attention to when the elevator suddenly loses power or malfunctions and is trapped in the car?
When you are locked in the car, you should obey the elevator driver’s instructions. If there is no driver, you can contact relevant personnel through the communication device for rescue. Do not pull the door forcefully or jump out by yourself to avoid danger.
14. What should be paid attention to when entering the car?
When you enter the car, if the elevator door is open, check whether the elevator is on the leveling position or whether the car is on this floor, especially at night when the light is not clear, you should pay more attention, otherwise it may be possible Cause injury, and fast forward and fast out.
15. Should the elevator installation and repair unit and maintenance and operation personnel obtain the corresponding qualifications?
Yes. Elevator installation, maintenance, and transformation units shall obtain the qualification certificate issued by the quality and technical supervision department before they can engage in the corresponding work; elevator installation, maintenance, and elevator operators shall obtain the special personnel operation certificate before taking up their posts.
16. What kind of emergency can you call 110 in the elevator?
When there is an emergency in the elevator, there are cases where people are injured or trapped (people are trapped in the elevator car, and elevator maintenance personnel cannot be found), you can call 110 to call the police.
17. Under what circumstances can an elevator complain about quality or safety?
When the elevator frequently closes doors, traps people, uneven floors, rushes to the top, squats on the bottom, elevator drivers or maintenance personnel do not have a job certificate, the driver often leaves the job, there is no inspection certificate in the car, or the certificate expires, the elevator makes abnormal noise or noise. Vibration or shaking, abnormal burning smell in the car, too fast or too slow elevator speed, untimely maintenance, no communication or alarm device in the elevator car, etc., quality or safety complaints can be made.
18. What should be stated clearly when reporting an elevator alarm or complaint?
The specific situation of the elevator should be explained, and the specific location of the elevator, the owner of the elevator and the contact person and phone number of the responsible department, and the elevator maintenance unit and phone number should be explained.
1. How does the elevator work?
The elevator has a car and a counterweight, which are connected by wire ropes. The wire rope is driven by the driving device (traction machine) to make the elevator car and counterweight move up and down on the elevator guide rails.
2. Will the elevator wire rope break?
The state has special regulations and requirements for steel wire rope elevators for elevators. The configuration of the wire rope is not only to bear the elevator car and rated load, but also to take into account the size of the traction. Therefore, the tensile strength of the wire rope is much greater than the load of the elevator, and their safety factor is above 12. Generally, elevators are equipped with There are more than four wire ropes.
3. Is there any danger in a sudden power failure during elevator operation?
If the elevator encounters a sudden power failure or failure of the power supply line during the operation of the elevator, the elevator will automatically stop running without any danger. Because the elevator itself is equipped with electrical and mechanical safety devices, once the power is cut off, the elevator brake will automatically brake, making the elevator unable to run. In addition, the power supply department will notify in advance if there is a planned power outage, and the elevator may stop operation in advance.
4. What should I do if the elevator suddenly speeds up?
The elevator’s running speed should run within the specified rated speed range regardless of whether it is up or down. Generally, it will not exceed the speed. If overspeed occurs, there is an anti-overspeed device in the elevator control system. At this time, the device will automatically start. Decelerate or stop the elevator.
5. Can the elevator car overload be controlled automatically?
The load capacity of the elevator is different according to the needs. The elevator can only run within the specified load capacity. When it exceeds the specified load capacity, the elevator will automatically alarm and cannot run.
6. Will being caught when the elevator closes the door will cause harm to people?
When the elevator door is closing, if the car door touches a person or object, the door will automatically reopen without hurting people. Because there is an anti-pinch switch on the door, once the door touches a person or object, this switch action prevents the elevator from closing, and reopens, and then closes the door again. In addition, the closing force is prescribed.
7. Can the elevator hall door be opened?
The elevator hall door cannot be opened outside the car, it must be opened with special tools (installation tools are controlled by maintenance personnel). Passengers are not allowed to pick up the door, let alone open it, otherwise there is a danger of falling to the bottom of the well.
8. How to call the elevator?
When you need to take an elevator, you should select the direction button you want to go to on the panel of the elevator hall. Press the up arrow button up, and press down the arrow button. The elevator adopts a forward parking method in the control system. If the elevator goes in the opposite direction, the elevator will not stop to this floor.
9. Are there protective measures for elevator squatting and topping?
Elevator squatting at the bottom means that when all the control systems of the elevator car fail, they will overtake the leveling position of the first floor and drive down until they squat on the buffer in the pit and stop. The buffer is a protective device set up for this purpose. This protective device is divided into two types: spring type and hydraulic type, depending on the operating speed of the elevator. When the car squats on the buffer, it is called squat bottom. At this time, the buffer has a mitigating effect on the impact of the elevator car, and will not cause serious damage to the passengers in the elevator.
10. What should I do in the car when the elevator runs abnormally?
When taking the elevator, if you find that the elevator is overspeed or slow, you should press the red emergency stop button on the control panel. The elevator will stop automatically and notify the elevator maintenance personnel in time.
11. What should I do if there is a strange smell in the elevator car?
When an abnormal burnt smell is found in the elevator car, press the red emergency stop button on the control panel to stop the elevator and notify the elevator maintenance personnel in time.
12. What should I do if the elevator is found to have abnormal vibration or scratching?
When you are riding an elevator and find that the elevator vibrates, shakes, or scratches, you should press the red emergency stop button on the control panel to stop the elevator and notify the elevator maintenance personnel in time.
13. What should you pay attention to when the elevator suddenly loses power or malfunctions and is trapped in the car?
When you are locked in the car, you should obey the elevator driver’s instructions. If there is no driver, you can contact relevant personnel through the communication device for rescue. Do not pull the door forcefully or jump out by yourself to avoid danger.
14. What should be paid attention to when entering the car?
When you enter the car, if the elevator door is open, check whether the elevator is on the leveling position or whether the car is on this floor, especially at night when the light is not clear, you should pay more attention, otherwise it may be possible Cause injury, and fast forward and fast out.
15. Should the elevator installation and repair unit and maintenance and operation personnel obtain the corresponding qualifications?
Yes. Elevator installation, maintenance, and transformation units shall obtain the qualification certificate issued by the quality and technical supervision department before they can engage in the corresponding work; elevator installation, maintenance, and elevator operators shall obtain the special personnel operation certificate before taking up their posts.
16. What kind of emergency can you call 110 in the elevator?
When there is an emergency in the elevator, there are cases where people are injured or trapped (people are trapped in the elevator car, and elevator maintenance personnel cannot be found), you can call 110 to call the police.
17. Under what circumstances can an elevator complain about quality or safety?
When the elevator frequently closes doors, traps people, uneven floors, rushes to the top, squats on the bottom, elevator drivers or maintenance personnel do not have a job certificate, the driver often leaves the job, there is no inspection certificate in the car, or the certificate expires, the elevator makes abnormal noise or noise. Vibration or shaking, abnormal burning smell in the car, too fast or too slow elevator speed, untimely maintenance, no communication or alarm device in the elevator car, etc., quality or safety complaints can be made.
18. What should be stated clearly when reporting an elevator alarm or complaint?
The specific situation of the elevator should be explained, and the specific location of the elevator, the owner of the elevator and the contact person and phone number of the responsible department, and the elevator maintenance unit and phone number should be explained.
コメント