Elevator safety knowledge quiz
Elevator -style high-rise buildings indispensable vertical transport, which is a large integrated mechatronic devices . Elevator to ensure their safety and reliability, in many ways set up preventive measures , such as electrical safety devices and mechanical safety devices. Among them, the electrical safety devices are: power control and protection devices , power supply phase sequence protection device , electric door interlock , emergency stop switch ladder , overspeed protection switch, overload protection switches, limit switches , emergency stop switches, safety window switch and so on. Mechanical safety devices have brakes, speed limiter, safety gear , bumpers, door hook locks, door safety touch panels. These safety means to ensure safe operation of the elevator . Face lift for the knowledge to introduce questions and answers .
How an elevator is up and running ?
There is a elevator car and a counterweight to connect them by rope , wire rope through the traction drive ( traction machine ) , led by the elevator car and the elevator guide focuses on the up and down movement .
Are two elevator rope will break ?
Elevator rope type elevator , the state has special regulations and requirements. Configure the rope is not just for bears elevator car and the rated load , but also takes into account the size of the traction force and, therefore, much greater than the tensile strength of steel wire rope elevator load , they have a safety factor of 12 or more, generally elevators with four or more rope , a rope is not going to lift off .
3 elevator operation if there is danger of a sudden power outage ?
Elevator operation in case of a sudden power failure or power line failure , elevator automatically stops running , there will be no danger. Because the elevator itself has electrical, mechanical safety device , a power failure , the actuator body will automatically brake power , the elevator does not run . In addition, the planned blackouts if the electricity sector , will be notified in advance of the elevator or early stop running.
4 lifts running suddenly accelerates how to do ?
Whether the speed of the elevator upward or downward , should be running at rated speed within the specified range, generally not speeding, if speeding, in the elevator control system is anti- speeding device , this time, the device will automatically action, the elevator to slow down or stop the run .
5 overloaded elevator car can automatically control it?
Lift the load vary according to the needs of different elevator can only run within the specified load , the time is exceeded, the elevator will automatically alarm , and can not run .
6 When the elevator door closing is sandwiched whether they would cause harm ?
Elevator in the closing process , if the Office of the car door hit people or things , the door will automatically re- opened, not hurt . Because of the switch with anti- family on the door , once the door to touch people or things , this switching operation so that the elevator is not closed, and reopened , then closed again . In addition, the extent of the closing force is required , will not be achieved.
7 Lift the door and check whether clawed ?
Elevator landing door can not be clawed out of court , it is necessary to use special tools to open ( fitted with a tool in the hands of maintenance staff ) . When passengers are not allowed to grilled door , but can not be opened , otherwise there will be danger of falling into the well .
8 how to summon the elevator ?
When you need to take the point of lift is to be decent in the elevator hall door panel buttons to select the direction you want to go . Press up on the directional buttons, press the down direction button. Elevator control system using the parking the way forward , if you press the counter- direction without stopping the elevator to the floor .
9 elevators and hoisting end squatting whether protective measures ?
Elevator squatting at the end of the car on the elevator control system in case of failure of all , it will go beyond the first floor level position while driving down until the pit stop on squatting in the end buffer . Buffer protective device is provided for the purpose , the protective device according to the different speed of the elevator , each of the two springs and hydraulic . When the car is called the buffer squatting squatting on the bottom . In this case, the buffer of the elevator car to ease the impact of an effect , and will not for the elevator passengers causing serious injury.
10 when the elevator is not functioning properly , how to do in the car ?
When the elevator , the elevator has found speeding or elevator speed is slow , should press the red emergency stop button on the operation panel , lift will automatically stop , and timely notification elevator maintenance personnel .
11 found that the elevator car smell, how to do ?
When an abnormality is detected in the pills only to discover the elevator car , should press the red emergency stop button on the operation panel , the elevator stops and timely notification elevator maintenance personnel .
12 found that the elevator had abnormal vibration , when virtually scratch phenomenon , how to do ?
When you take the elevator , the elevator was found abnormal vibration , shake , virtually scratch when should press the red emergency stop button on the operation panel , the elevator stops and timely notification elevator maintenance personnel .
13 when a sudden power failure or malfunction of the elevator , trapped in the car should pay attention to what ?
When you are locked in the car when the driver lifts should obey the command of the army under the driver's condition , can contact the relevant personnel through communication devices , in order to save . Do not force yourself out of doors or grilled , side danger.
14 into the car should pay attention to matters ?
When you enter the car , if the elevator doors open, to look at whether the elevator leveling position , or to see the car is in this layer , especially at night when the fiber is unclear , it should be noted that otherwise may cause injury and should be faster as soon as possible .
15 elevator installation , repair and maintenance of the unit , the operator shall obtain appropriate qualifications are ?
Yes . After the elevator installation , maintenance , alteration units shall obtain qualification certificates issued by the Beijing Municipal Quality and Technical Supervision , before engaging in the corresponding work ; elevator installation, maintenance , elevator operator shall obtain special personnel operating permits , certificates .
What appeared to lift emergency call 110 16 ?
When the elevator emergencies , there are hurt, trapped people ( people trapped in the elevator car , unable to find the elevator maintenance personnel ) , the phone can call 110 .
17 What happens next can lift the quality or safety complaints ?
When the elevator is often closed, clip people, uneven floor , rush to the top , lift driver or maintenance staff without job card , drivers often off-site , without the car inspection certificate or certificate expires , elevator abnormal noise or sound, abnormal shock or vibration , abnormal pills only to discover the car , the elevator speed is too fast or too slow , maintenance is not timely, no communication or alarm devices inside the elevator car , etc., can be quality or safety complaints.
18 pairs elevator alarm or complaints should say clearly what ?
I should say clear the specific circumstances of the elevator, and the elevator should be clear that specific location where the elevator of property units and departments in charge of contacts and contact telephone number, elevator maintenance units and contact phone number.
