Emergency control method for safety door

Abstract

The application provides an emergency control method for a safety door, and relates to the technical field of rail transit. The method comprises the following steps: S1: judging whether a driving machine is normally working, and if yes, no operation is performed; otherwise, S2 is performed; S2: marking a lifting control part at an abnormal driving machine as a first control part, and the other end as a second control part; a controller of the second control part acquires absolute value encoder readings in real time; S3: judging whether the absolute value encoder reading change of the second control part is greater than a predetermined threshold; if yes, S4 is performed; otherwise, no operation is performed; and S4: the driving machine of the second control part works to drive a sliding block to move a predetermined distance. The application has high feasibility. After one side of the motor fails, when a person artificially lifts and lowers the pull rope on the side of the failure, the state of the pull rope is acquired, the motor on the other side is correspondingly rotated, the two ends of the safety door pull rope are synchronously lifted and lowered, only one person is needed to easily perform emergency lifting and lowering control on the failed safety door, and the control efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular, to an emergency control method for safety doors. Background Technology

[0002] With urban development, the demand for rail vehicles to serve transportation functions between urban areas and suburbs is increasing. As different regions develop in diverse ways, the actual needs for rail vehicles vary greatly, including urban subways (including underground railways and surface light rail), and trains between cities (including bullet trains, high-speed trains, and regular trains), etc., all of which are collectively referred to as rail transit vehicles.

[0003] These rail transit platforms experience high passenger flow and operate at high speeds, necessitating the installation of platform screen doors to separate platform personnel from the rail vehicles and prevent accidental falls. For example, Chinese utility model patent CN206769653U provides a rail transit platform screen door comprising: a protective wall, a screen door, and a motor assembly. The motor assembly includes a high-speed motor, a gear reducer, and a transmission rack. The gear reducer has an input end and an output end, and the transmission rack is installed on the rail transit platform door, with the gear meshing with the rack. A battery box assembly includes a protective rail and a power battery. The protective rail has an open end and a closed end, with a first metal contact piece on the closed end, electrically connected to the high-speed motor. The power battery has a second metal contact piece. The aforementioned utility model is equipped with a motor assembly and a battery box assembly, which can form a self-powered shielded door opening system. When the shielded door malfunctions and cannot be opened, the high-speed motor can be used to quickly open the shielded door simply by pushing the energy battery. The aforementioned utility model is simple to use, the system operates reliably, and the shielded door can be opened quickly.

[0004] However, the drive motors for these safety screen doors have high power, and since the platform is very long and there are many screen doors, many drive motors need to be powered, requiring a large power supply capacity. Once a motor is damaged, it is difficult to manually push the safety door open, and high-voltage wires can only be used for power supply. Since the train arrival time is uncertain, the power supply to the motors must be maintained, resulting in a large power loss.

[0005] A new method of using ropes as platform safety gates is emerging. By using multiple ropes to protect the platform edge, the overall weight of the gate can be reduced, and the power consumption of the gate is also reduced. However, the following drawbacks still exist: If the safety gate motor fails, it is still very difficult to lift the rope gate manually. Also, because the ropes are set horizontally, raising or lowering one end of the rope will cause the rope to tilt and become taut, making it impossible to raise or lower it further. You can only raise or lower it by walking to the other end of the rope. Moreover, each raising or lowering is small. To raise or lower the safety gate completely, at least two people are needed to raise or lower it at both ends, or one person needs to walk back and forth between the two ends of the rope to control the raising and lowering of the safety gate, which is very troublesome.

[0006] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient emergency control method for safety doors. Summary of the Invention

[0007] The purpose of this invention is to provide a highly feasible method in which, after a motor failure on one side, the state of the pull rope on the faulty side is obtained by manually raising or lowering it, and the motor on the other side rotates accordingly, so that both ends of the safety door pull rope rise and fall synchronously. Only one person is needed to easily control the emergency raising and lowering of the faulty safety door, resulting in high control efficiency.

[0008] To achieve the above objectives, the present invention employs the following technical solution:

[0009] An emergency control method for a safety door is applicable to a safety door structure. The structure includes a column and a pull rope disposed between two adjacent columns. A slider for connecting to the end of the pull rope is disposed on the column. A drive motor for driving the slider to move up and down is disposed at the top of the column. The drive motor is connected to a lifting control unit. The lifting control unit includes a controller and an absolute encoder connected to the rotating shaft of the drive motor.

[0010] The method is characterized by comprising the following steps:

[0011] S1: Determine if the drive is working properly. If yes, do not perform the operation; otherwise, proceed to step S2.

[0012] S2: Mark the lifting control unit at the abnormal drive motor as the first control unit, and mark the lifting control unit at the drive motor at the other end of the pull rope as the second control unit; the controller of the second control unit acquires the absolute encoder reading in real time;

[0013] S3: Determine whether the change in the absolute encoder reading of the second control unit is greater than a predetermined threshold; if yes, proceed to step S4; otherwise, do not perform the operation.

[0014] S4: The controller of the second control unit drives the drive motor to work, driving the slider to move a predetermined distance.

[0015] As a preferred embodiment of the present invention, the present invention further includes:

[0016] S5: Determine whether the tension of the rope at the slider is greater than the predetermined tension. If yes, continue to step S4; otherwise, return to step S3.

[0017] As a preferred embodiment of the present invention, when executing step S3, it is determined whether the change in the absolute encoder reading of the second control unit before and after a predetermined time is greater than a predetermined threshold; if so, step S4 is executed; otherwise, no operation is executed.

[0018] As a preferred embodiment of the present invention, when performing step S1, the criterion for determining that the drive is not working properly is: after sending a drive signal to the drive, the drive still does not respond after a preset time.

[0019] As a preferred embodiment of the present invention, when the controller monitors the drive motor for abnormal operation during step S1, it issues an alarm and executes step S2.

[0020] Alarm methods include sound alarms and flashing alarms.

[0021] As a preferred embodiment of the present invention, when performing step S2, the controller of the second control unit is turned on, and then the controller of the second control unit acquires the absolute encoder reading of the second control unit in real time.

[0022] As a preferred embodiment of the present invention, step S4 is specifically performed as follows:

[0023] S41: The controller of the second control unit determines whether the change value of the absolute encoder reading of the second control unit is positive. If it is, step S42 is executed; otherwise, step S43 is executed.

[0024] S42: The controller of the second control unit drives the drive motor to rotate in the forward direction, driving the slider to move upward a predetermined distance;

[0025] S43: The controller of the second control unit drives the drive motor to rotate in the opposite direction, driving the slider to move downward a predetermined distance.

[0026] As a preferred embodiment of the present invention, the column is provided with a balance block and a lifting column for connection with the pull rope; the slider is provided on the lifting column, the drive motor is connected to a drive chain, one end of the drive chain is connected to the lifting column, and the end of the drive chain away from the lifting column is connected to the balance block; a drive sprocket is provided on the drive motor shaft, and the drive chain is meshed with the drive sprocket.

[0027] The lifting of the rope is balanced by a counterweight, making it easier to lift the rope on the faulty side. One person can easily lift the rope.

[0028] As a preferred embodiment of the present invention, the lifting column is provided with a rotating roller, the rotating roller is provided with a transmission belt, one end of the transmission belt is connected to the slider, and the end of the transmission belt away from the slider is connected to the column.

[0029] As a preferred embodiment of the present invention, an insulating shielding layer is provided on the outer side of the pull rope to ensure personnel safety when the pull rope is raised on the faulty side.

[0030] The beneficial effects of the emergency control method for safety doors of the present invention are as follows: high feasibility. After a motor failure on one side, when the pull rope is manually raised or lowered on the faulty side, the motor on the other side will rotate accordingly based on the state of the pull rope, so that both ends of the safety door pull rope will rise and fall synchronously. Only one person is needed to easily control the emergency raising and lowering of the faulty safety door, resulting in high control efficiency. Attached Figure Description

[0031] Figure 1 This is a flowchart illustrating an emergency control method for a safety door according to the present invention.

[0032] Figure 2 This is a schematic diagram of the safety door structure in the emergency control method for a safety door according to the present invention;

[0033] Figure 3 This is a schematic diagram of the rope lifting structure in an emergency control method for a safety door according to the present invention;

[0034] In the diagram: 1. Column, 11. Drive motor, 111. Drive sprocket, 12. Drive chain, 13. Balance block, 2. Lifting column, 21. Slider, 22. Rotating roller, 23. Transmission belt, 3. Pull rope. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement of modules and structures set forth in these embodiments does not limit the scope of the invention.

[0037] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0038] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0039] Example 1: As Figures 1 to 3The image shown is merely one embodiment of the present invention. An emergency control method for a safety door is applicable to a safety door structure. The structure includes a column 1 and a pull rope 3 disposed between two adjacent columns 1. A slider 21 for connecting to the end of the pull rope 3 is disposed on the column 1. A drive motor 11 for driving the slider 21 to move up and down is disposed at the top of the column 1. The drive motor 11 is connected to a lifting control unit. The lifting control unit includes a controller and an absolute encoder connected to the rotating shaft of the drive motor 11.

[0040] In this invention, the door opening positions of different trains are statistically analyzed. Columns 1 are installed on both sides of multiple door opening positions, and a pull rope 3 is installed between two columns 1 to form a platform screen door structure. A lifting column 2 is installed on each column 1, and a slider 21 is installed on each lifting column 2. The lifting column 2 can move up and down along the column 1, and the slider 21 can also slide up and down on the lifting column 2, allowing the pull rope 3 to move up and down. Normally, the slider 21 at the end of the pull rope 3 is located at the lower part of the column 1, blocking the lower area between the two columns 1 to prevent people from falling onto the platform. When a train enters the station, the slider 21 is raised, so that the pull rope 3 is located on the upper side between the two columns 1. This allows passengers to board and alight below the pull rope 3, and all multiple door opening positions of the train are located between two columns, allowing passengers to board and alight normally regardless of the train type.

[0041] Generally, the distance between two pillars 1 is at least 9 meters, which includes at least one door opening position for each type of train. Of course, since the train is very long, there should be more pillars 1 and more sets of ropes 3 for the safety shielding of the entire platform. Because the platform screen door adopts the rope 3 structure, it is not only suitable for different trains to open the door, but also makes the entire platform screen door lighter and more energy-efficient to open and close.

[0042] Furthermore, during the lifting and lowering of the rope 3, the lifting column 2 is mounted on the column 1, and a balance block 13 is mounted on the column 1. A drive motor 11 and a drive chain 12 connected to the drive motor 11 are mounted at the top of the column 1. One end of the drive chain 12 is connected to the lifting column 2, and the end of the drive chain 12 away from the lifting column 2 is connected to the balance block 13. In this way, when the drive motor 11 works, it can drive the drive chain 12 to transmit power and drive the lifting column 2 to rise and fall. When the drive motor 11 rotates forward, the lifting column 2 rises and the balance block 13 falls. Conversely, when the drive motor 11 rotates in reverse, the lifting column 2 falls and the balance block 13 rises. Since the lifting column 2 and the balance block 13 are respectively mounted on both sides of the drive motor 11, they balance the lifting force of the lifting column 2, so that the drive motor 11 can complete the lifting and lowering of the lifting column 2 with less power.

[0043] Furthermore, the drive motor 11 is equipped with a drive sprocket 111, and the drive chain 12 is meshed with the drive sprocket 111, so that the lifting and lowering of the rope can be better coordinated with the rotation of the motor shaft of the drive motor.

[0044] This allows the lifting of the pull rope 3 to be balanced by the counterweight 13, making it easier to lift the pull rope on the faulty side, and one person can easily lift the pull rope.

[0045] The key point of this invention is that the drive motor 11 is connected to a lifting control unit, which includes a controller and an absolute encoder connected to the rotating shaft of the drive motor 11. The absolute encoder is electrically connected to the controller and works continuously to continuously acquire the rotation amount of the drive motor shaft, while the controller is only used when one motor fails.

[0046] The method includes the following steps:

[0047] S1: Determine if the drive is working properly. If yes, do not perform the operation; otherwise, proceed to step S2.

[0048] Under normal circumstances, the drive motor drives the pull rope to rise and fall under the drive control, without the need for manual pushing of the pull rope; once one drive motor fails, the columns on both sides of the pull rope need to cooperate so that the pull rope can be raised and lowered under manual control, which is to execute step S2.

[0049] In this invention, the criterion for determining that the drive is not working properly when performing step S1 is: after sending a drive signal to the drive, the drive still does not respond after a preset time.

[0050] Moreover, as an embodiment of the present invention, when the controller monitors the drive motor for abnormal operation during step S1, it issues an alarm and executes step S2. Of course, the alarm methods include sound alarm and flashing alarm. Since the drive control has already sent a drive signal to the drive motor, that is, the safety door needs to be raised or lowered, but the drive motor does not respond, then an alarm needs to be issued to remind the staff to manually raise or lower the safety door.

[0051] For example, when the safety door is closed, that is, when the pull rope is at the bottom, the pull rope separates the platform from the train. If a train enters the station, the drive control sends an opening signal to the drive motor, but the drive motor does not respond. At this time, an alarm is sounded, and the staff manually lifts the pull rope to open the safety door, so that the train can board and alight passengers.

[0052] S2: Mark the lifting control unit at the abnormal drive motor as the first control unit, and mark the lifting control unit at the drive motor at the other end of the pull rope as the second control unit; the controller of the second control unit acquires the absolute encoder reading in real time;

[0053] Here, the side where the drive motor does not respond is actually the abnormal side, and the other end of the pull rope is the normal side. The drive motor on the abnormal side is marked as the first drive motor, and the lifting control unit on the abnormal side is marked as the first control unit; the drive motor on the normal side is marked as the second drive motor, and the lifting control unit on the normal side is marked as the second control unit.

[0054] At this point, manual control of the safety door's pull rope is required. The system automatically activates the controller of the second control unit, which then acquires the absolute encoder reading in real time.

[0055] S3: Determine whether the change in the absolute encoder reading of the second control unit is greater than a predetermined threshold; if yes, proceed to step S4; otherwise, do not perform the operation.

[0056] At this point, the platform staff arrive at the location of the abnormal drive motor and, based on the train's entry and exit information, manually control the raising and lowering of the safety door rope. Taking the opening of the safety door as an example, this means raising the rope.

[0057] When platform staff raise the rope on the abnormal side, the rope on the abnormal side will rise while the rope on the normal side will not. This will cause the rope to tilt and become taut. At this point, if the platform staff continue to raise the rope on the abnormal side, it will cause the rope on the normal side to rise slightly a certain distance under the tension.

[0058] Then, the normal side pull rope rises, which will be transmitted to the shaft of the second drive machine through the drive chain to rotate (the drive machine is faulty, but its shaft can still rotate). Then the reading of the absolute encoder of the second control unit will also change. Conversely, if the reading of the absolute encoder of the second control unit changes and the change reaches the predetermined threshold, then someone must be controlling the raising and lowering of the pull rope. At this time, it is necessary to continue to execute the next step S4 to complete the synchronous raising and lowering of both ends of the safety door pull rope.

[0059] S4: The controller of the second control unit drives the drive motor to work, driving the slider to move a predetermined distance.

[0060] When someone pulls the rope up or down on the abnormal side, the rope on the normal side will also be passively raised or lowered. At this time, the controller of the second control unit obtains the raising or lowering of the rope on the normal side and controls the second drive motor to work to compensate for the raising or lowering of the rope on the normal side.

[0061] It should be noted that when the abnormal side considers that the rope is raised to the first height, the rope is taut and can only raise the rope on the abnormal side to the second height. The second height is less than the first height. Therefore, when the second drive motor works to compensate for the lifting of the rope on the normal side, it needs to move the rope on the normal side to the third height. The value of the third height is: the first height minus the second height.

[0062] Moreover, the relationship between the first height and the second height depends on the elastic coefficient of the rope and the length of the rope. The relationship between the first height and the second height can be obtained through multiple tests. Taking a 9m long rope with three strands of steel wire rope wound around it as an example, the first height of the rope on the abnormal side is 5cm, and the second height of the rope on the normal side is about 1.2cm. Then, the second drive motor needs to raise the second rope by 3.8cm to compensate for the height.

[0063] This ensures that both sides of the pull rope rise and fall synchronously.

[0064] In summary, the present invention adopts a balance structure of balance blocks, which makes it very easy to raise the pull rope on the abnormal side. Even workers with less strength can easily lift the pull rope, and the pull rope on the other side will also rise. In this way, only one person is needed to easily complete the raising and lowering control of the entire safety door pull rope.

[0065] Example 2: As before Figures 1 to 3 The illustration shown is merely one embodiment of the present invention. Based on embodiment one, the present invention, in its emergency control method for safety doors, further includes:

[0066] S5: Determine whether the tension of the rope at the slider is greater than the predetermined tension. If yes, continue to step S4; otherwise, return to step S3.

[0067] Unlike Embodiment 1, here the third height value is divided into several displacement units, so that the pull rope on the normal side is compensated multiple times. Each displacement unit is moved, which can increase the accuracy of the compensation and make up for the error caused by the aging of the pull rope after long-term use.

[0068] When executing step S4, the predetermined distance is the displacement element.

[0069] For example, the second drive unit needs to raise the second pull rope by 3.8cm to compensate for the height. This is divided into 10 displacement units, each of which is 0.38cm. After each compensation displacement unit, the pull rope tension is checked. The predetermined tension is the tension t0 when the pull rope is horizontal, multiplied by an error coefficient of 1.05. If the pull rope tension is greater than the predetermined tension after multiple compensations on the normal side, then the pull rope is still tilted and the compensation displacement of the pull rope on the normal side is insufficient. Step S4 is then executed until the pull rope is roughly horizontal, and the process returns to step S3.

[0070] Correspondingly, when executing step S3, it is determined whether the change in the absolute encoder reading of the second control unit before and after the predetermined time is greater than the predetermined threshold; if so, step S4 is executed; otherwise, no operation is executed.

[0071] In other words, step S3 can be executed multiple times, so the staff on the abnormal side can raise the rope multiple times until the entire safety door is fully opened.

[0072] In summary, when the staff on the abnormal side raise the pull rope by 5cm, the right pull rope naturally rises by 1.2cm, and the second drive motor compensates by raising the pull rope by 3.8cm; when the staff on the abnormal side raise the pull rope by another 5cm, the right pull rope naturally rises by 1.2cm, and the second drive motor compensates by raising the pull rope by 3.8cm; this process is repeated.

[0073] Example 3: As before Figures 1 to 3 The above illustration is merely one embodiment of the present invention. Based on any of the above embodiments, the present invention provides an emergency control method for safety doors.

[0074] When performing step S4, the specific steps are as follows:

[0075] S41: The controller of the second control unit determines whether the change value of the absolute encoder reading of the second control unit is positive. If it is, step S42 is executed; otherwise, step S43 is executed.

[0076] S42: The controller of the second control unit drives the drive motor to rotate in the forward direction, driving the slider to move upward a predetermined distance;

[0077] S43: The controller of the second control unit drives the drive motor to rotate in the opposite direction, driving the slider to move downward a predetermined distance.

[0078] Here, the change value of the absolute encoder reading in the second control unit is the current absolute encoder reading minus the absolute encoder reading before the predetermined time value; an increase in the encoder reading indicates that the pull rope is rising, and the forward rotation of the drive motor also causes the pull rope to rise; then the controller of the second control unit can determine whether the pull rope on the abnormal side is rising or falling based on the change in the absolute encoder reading of the first control unit, and thus control the drive motor on the normal side to rotate forward or reverse, so that the height of the pull rope on the normal side is synchronized with the height of the pull rope on the abnormal side.

[0079] It should be noted that the lifting column 2 is provided with a rotating roller 22, and the rotating roller 22 is provided with a transmission belt 23. One end of the transmission belt 23 is connected to the slider 21, and the end of the transmission belt 23 away from the slider 21 is connected to the column 1.

[0080] The slider 21 can slide along the lifting column 2, and the rotating roller 22 has no independent power. The rotation power of the rotating roller 22 comes from the lifting of the lifting column 2. When the drive motor 11 drives the lifting column 2 to rise, the column 1 itself descends relative to the lifting column 2, causing the end of the transmission belt 23 connected to the column 1 to move downward relative to the lifting column 2. Then, driven by the transmission belt 23, the slider 21 naturally rises relative to the lifting column 2.

[0081] The slider 21 is connected to the end of the pull rope 3, so when the drive motor 1 drives the lifting column 2 to rise, the pull rope 3 has two stages of rising.

[0082] In this way, the two-stage lifting structure is used to raise and lower the pull rope 3 to complete the opening and closing of the platform screen door. Moreover, the lifting column 2 is balanced by the weight of the balance block 13, so that the drive motor 11 only needs a small amount of power to drive the pull rope 3 to a greater lifting height, which has a good energy-saving effect. When the pull rope 3 is raised, it is convenient for passengers to get on and off the train, and when the pull rope is lowered, it can effectively prevent people from falling off the platform, which is highly safe.

[0083] Of course, an insulating shielding layer is provided on the outside of the pull rope 3 to ensure personnel safety when the pull rope is manually raised on the fault side.

[0084] The present invention provides a highly feasible emergency control method for safety doors. After a motor failure on one side, when the pull rope is manually raised or lowered on the faulty side, the motor on the other side rotates accordingly based on the state of the pull rope, so that both ends of the safety door pull rope rise and fall synchronously. Only one person is needed to easily control the emergency raising and lowering of the faulty safety door, resulting in high control efficiency.

[0085] This invention is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this invention should be included within the scope of protection of this invention.

Claims

1. An emergency control method for a safety door, suitable for a safety door structure, the structure comprising upright columns (1) and a pull rope (3) arranged between two adjacent upright columns (1), the upright column (1) being provided with a sliding block (21) for connecting with the end of the pull rope (3), the upright column (1) being provided at the top end with a driving machine (11) for driving the sliding block (21) to ascend and descend, the driving machine (11) being connected with an ascending and descending control part, the ascending and descending control part comprising a controller and an absolute value encoder connected with the rotating shaft of the driving machine (11); the method comprising the following steps: S1: judging whether the driving machine is working normally, if yes, no operation is performed; otherwise, step S2 is performed; S2: marking the ascending and descending control part at the abnormal driving machine as a first control part, and marking the ascending and descending control part at the driving machine at the other end of the pull rope as a second control part; the controller of the second control part acquires the reading of the absolute value encoder in real time; S3: judging whether the reading change of the absolute value encoder of the second control part is greater than a predetermined threshold value, if yes, step S4 is performed; otherwise, no operation is performed; S4: the controller of the second control part drives the driving machine to work, and drives the sliding block to displace a predetermined distance; S5: judging whether the pull force at the sliding block is greater than a predetermined pull force, if yes, step S4 is continuously performed; otherwise, step S3 is returned to. characterized in that 2. The emergency control method for a safety door according to claim 1, characterized in that: when step S3 is performed, judging whether the reading change of the absolute value encoder of the second control part is greater than the predetermined threshold value before and after a predetermined time, if yes, step S4 is performed; otherwise, no operation is performed.

3. The emergency control method for a safety door according to claim 1, characterized in that: in step S1, the judgment standard that the driving machine is not working normally is that after a driving signal is sent to the driving machine, the driving machine still does not respond after a predetermined time.

4. The emergency control method for a safety door according to claim 1, characterized in that: the alarm is sent out when the driving machine is not working normally in step S1, and step S2 is performed; the alarm mode comprises a sound alarm and a flashing alarm.

5. The emergency control method for a safety door according to claim 1, characterized in that: a controller of the second control part is started in step S2, and then the controller of the second control part acquires the reading of the absolute value encoder of the second control part in real time; in step S4, the following steps are performed: S41: the controller of the second control part judges whether the reading change value of the absolute value encoder of the second control part is a positive value, if yes, step S42 is performed; otherwise, step S43 is performed; S42: the controller of the second control part drives the driving machine to work in a forward direction, and drives the sliding block to displace a predetermined distance upward; S43: the controller of the second control part drives the driving machine to work in a reverse direction, and drives the sliding block to displace a predetermined distance downward. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The emergency control method of a safety door according to claim 5, characterized in that: ​ ​ ​ ​ 7. The emergency control method of a safety door according to claim 1, characterized in that: The post (1) is provided with a balance block (13) and a lifting column (2) for connecting with the pull rope (3); the sliding block (21) is arranged on the lifting column (2), the drive machine (11) is connected with a drive chain (12), one end of the drive chain (12) is connected with the lifting column (2), and the other end of the drive chain (12) away from the lifting column (2) is connected with the balance block (13).

8. The emergency control method of a safety door according to claim 7, characterized in that: The drive machine (11) is provided with a drive sprocket (111) on a rotating shaft, and the drive chain (12) is meshed and connected with the drive sprocket (111).

9. The safety door emergency control method of claim 1, wherein: An insulating shielding layer is arranged outside the pull rope (3).

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