Two plans for elevator emergency rescue

The Elevator Daily reported that the elevator fell from the 19th floor to the second floor, and the passengers fell into the elevator shaft during the rescue. From the report, we can analyze that first of all, there is no event of the elevator falling to the bottom, because there are parts such as speed limiter and safety clamp. When the speed exceeds 115% of the rated speed of the elevator, the speed limiter can send out a signal in time, and then produce a mechanical action to cut off the power supply circuit and make the traction mechanism move. If the elevator still fails to brake, a safety clamp installed at the bottom of the car will force the car to stop. The speed limiter is the command sender, and the safety clamp is the executor. The joint effect of the two has emerged the safety of the elevator. They can quickly stop the elevator car on the guide rail and remain stationary, thereby preventing injuries and equipment damage. The problem arises when maintenance personnel go to the rescue, the following article will give the general maintenance personnel as a reference.

Elevator general rescue method

1. Rescue personnel must be trained and qualified by relevant departments; otherwise, they are strictly prohibited to participate in rescue work.

2, the elevator is difficult under abnormal circumstances, the elevator rescue personnel must be clear about the location of the car.

3. Turn off the main power supply of the elevator in the machine room to prevent the elevator from starting accidentally, but the car lighting must be kept.

4. When the elevator is on the floor within the range of ± 15cm from a floor position, rescue personnel can open the door with the special hall door triangle key outside the hall door of the floor, and pull open the car door by hand, and then assist passengers to evacuate the car safely.

5. If the elevator stops at a position other than the above level floor, the car must be moved by manual rescue method to save people.

6. The door of the car should be kept closed. If the door is opened, please ask the trapped passengers to help close the door and inform the trapped passengers to move the car so that they can be rescued. (if the elevator has intercom can be fully used)

7. One person holds the wheel driver to move the wheel, and the other person uses a method of prying and releasing to release the brake, so that the car moves in the right direction, and pay attention to prevent the elevator from happening accidentally too fast when releasing the brake.

8. The paint mark on the wire rope should be parallel to the flat line mark on the base of the tractor.Note :(this clause applies to the car between the upper and lower floors)

9. After determining the location of the elevator, the rescue personnel should go to the floor where the elevator car is located, open the hall door and the car door with the special triangle key to release the trapped personnel, and timely inform the maintenance personnel to carry out maintenance and make records.

Elevator emergency rescue basic steps and key points

I. Basic steps and key points of emergency rescue for elevator (including machine room, worm gear and worm, permanent magnet synchronous host) power failure:

(1) Receiving police and handling

1. When I received the phone call from the trapped person, I had a preliminary understanding of the situation of the trapped person and the floor station where the elevator car stopped, and tried to comfort the trapped passenger.

2. Rescue personnel (at least two people) rushed to the scene, at the designated place to get the elevator engine room door key and other door keys obstructing access to the engine room and the rescue triangle key.

(2) Determine the position of the cage

1. The rescue workers will open the hall door on the first floor and determine which floor the elevator is on according to the reposition or car position.

2. The rescue personnel rushed to the elevator room quickly, using intercom to inform the trapped passengers in the car not to panic, rescue personnel are rescuing, do not close to the door of the car, do not panic when the elevator is moving, do not forcibly pry the door, such as the flat floor will realize the opening rescue.

3. Cut off the main power supply and hang a notice board at the power socket.

4. Check whether the floor signs on the traction wire rope in the machine room are consistent with the floor signs. If so, judge the floor where the elevator stops, and directly go to the designated floor to carry out rescue without turning a car. If not, manually go to the flat layer area.

Wire rope sign viewing method: stand in the disk parking space to face the traction wire rope from the right to start sorting, 1, 2, 3 in sequence. According to the 8421 code rules to determine the number of elevator floors (8421 code principles are the first is 1, the second is 2, the third is 4, the fourth is 8, the fifth is 16). To determine the number of floors, just add the numbers of each representative to get the number of floors. For example, if only the first root is painted, because the first digit means 1, it means the elevator is at 1F; Only the second one is painted, the second two means the elevator is at 2F; 1+2=3F if both the first and the second are marked; The first and third are 1+4=5F; If the first, second, and third root have flags, 1+2+4=7F is calculated accordingly.

(3) Manual turning flat layer

1. One person removes THE electric tailSHAFT cover, installs the turning handle (the wheel wheel) and holds the wheel wheel by hand. The other person inserts the manual lever into the rectangular hole of the brake mounting plate to open the brakes.

2. Two people cooperate, after the brake is opened, the turning personnel will turn the wheel in accordance with the labor-saving principle to make the elevator car move.

3. Judge the sign of the traction wire rope and the level of the floor mark to determine whether the elevator has been flat floor (pay attention to read the floor where the car is).

4, after the end of the wheel, the wheel handle (wheel driver wheel) removed, put to the prescribed position.

5. Confirm the elevator car position by looking at the sign of the wire rope. When the rescue personnel leave the room, pay attention to close the room door and hang the notice board.

(4) Open the door to rescue

1. The rescue personnel go to the floor where the car is located, and shout to the trapped personnel outside the hall door after arrival to confirm that the car has reached the floor, and warn the trapped personnel again not to lean against the car door.

2. Correctly use the triangle key to open the hall door. When opening the hall door, first confirm whether the floor of the hall door is smooth and clean to prevent slipping and falling. When using the triangle key, must be strictly in accordance with the "one slow, two look, three operation" (" one slow "with the triangle key to open the door must be slow, open the width can not be too large, about 10 cm shall prevail; "Second look" to check whether the car is parked on this floor; "Three Operation" only when it is clear that the car is on this floor can all the hall doors be opened. When using the triangle key, the force must be even, not too strong, to prevent damage to the triangle lock of the hall door).

3. Assist passengers to leave the car, and close the car door and hall door when all the personnel have left.

Note: According to the requirements of "Special Equipment Safety Supervision Regulations", from the passengers trapped to the successful rescue of all the trapped passengers should be controlled within 2 hours.

(5) Follow-up processing

1. Keep relevant process records.

2, inform the maintenance unit to carry out a comprehensive inspection of the elevator, confirm the normal rear can use the elevator.

2. Basic steps and key points of emergency rescue for elevator power failure (without machine room) :

(1) Receiving police and handling

1. When receiving a call from the stranded person for repair, preliminarily understand the situation of the stranded person and the floor station where the elevator car stops, and try to comfort the trapped passenger.

2. Rescue personnel (at least two people) should come to the scene and take the key of the elevator control cabinet and the special triangle key for rescue from the designated place.

(2) To preliminarily determine the position of the car, the rescue personnel should first open the floor door on the first floor and determine which floor the elevator is on according to the re-position or car position.

Rescue personnel rushed to the appropriate floor of the elevator, use the triangle key to open the hall door, observe whether the car is in this position, if not, slowly open the hall door, observe the car position. According to visual inspection, preliminarily determine the floor and position of the elevator car (note the position of the car).

Open the hall door. Before opening the hall door, make sure that the floor of the hall door is smooth and clean to prevent slipping and falling. Keep your body steady and do not lean forward. When using the triangle key, must be strictly in accordance with the "one slow, two look, three operation" (" one slow "with the triangle key to open the door must be slow, open the width can not be too large, about 10 cm shall prevail; "Second check" whether the car stops on this floor; "Three Operation" only when it is clear that the car is on this floor can all the hall doors be opened. When using the triangle key, the force must be even, not too strong, to prevent damage to the triangle lock of the hall door).

(3) Determine the position of the cage

1, the rescue personnel rushed to the elevator control cabinet floor, open the control cabinet, use intercom to inform the trapped passengers in the car not to panic, rescue personnel do not close to the door of the car, do not panic when the elevator is moving, do not force the door, such as the flat floor will achieve open the door rescue.

2. Cut off the main power supply of the elevator, put on the power lock and hang the notice board.

3. Determine whether the elevator is flat or not according to the green indicator light in the door area of the elevator control cabinet. If the light is on, the elevator has been flat; If the indicator is not on, you need to manually layer.

(4) Manual flat-layer operation

1, use the lock release handle to open the lock. Pay attention to the indirect release of the brake, minimize the impact to keep the car stable, avoid panic passengers in the car, observe whether the elevator car is moving.

2. Note that when the green indicator in the door area is on, it means that the car has been leveled.

3. After the flat floor of the elevator, confirm that the wrench of the release brake is reset and the elevator car is reliably stopped (pay attention to the floor where the car is located).

4. Use intercom to inform the trapped passengers in the car to open the door and rescue immediately, and lock the control cabinet; They leave and hang up the sign.

(5) Open the door for rescue

1. The rescue personnel go to the floor where the car is located, and shout to the trapped personnel outside the hall door after arrival to confirm that the car has reached the floor, and warn the trapped personnel again not to lean against the car door.

2. Use the triangle key correctly to open the hall door. When opening the door of the hall, first make sure that the floor of the hall door is smooth and clean to prevent slipping and falling. Pay attention to keep the body steady and do not lean forward.

When using the triangle key, we must strictly observe the "one slow, two look, three operation".

3. Assist passengers to leave the car. Close the car door and hall door when everyone has left.

Note: According to the "Special Equipment Safety Supervision Regulations", from the passengers trapped to the successful rescue of all the trapped passengers should be controlled within 2 hours

(6) Follow-up treatment

1. Keep relevant process records.

2. Inform the maintenance unit to carry out a comprehensive inspection of the elevator and confirm that it is normal before using the elevator.