An active emergency rescue system suitable for a no-lift-door villa elevator

Abstract

The application provides a kind of active emergency rescue system suitable for no car door villa elevator, including elevator main control board, automatic rescue module, emergency power supply, hall door outside opening type vertical hinged door machine, door state detection module, power switching module and door head emergency button, no car door villa elevator is only provided with the hall door vertical hinged door that opens outward, and the automatic rescue module is used to control the elevator to slide to the flat position when the elevator fails;Door state detection module is used to detect the power supply state and door opening signal state;The door head emergency button includes power switching button and emergency door opening button, and the elevator main control board is used to activate the door head emergency button if the power supply state indicates power loss or the door opening signal state indicates abnormality after the elevator slides to the flat position;When the emergency door opening button is pressed, the door opening drive signal is output to the hall door outside opening type vertical hinged door machine, and the power switching button is pressed to control the switch to the emergency power supply.The beneficial effect is that the application can realize fast, safe and low-threshold active rescue.

Description

Technical Field

[0001] This invention relates to the technical field of elevator rescue systems, and more specifically, to an active emergency rescue system suitable for villa elevators without car doors. Background Technology

[0002] Due to limited installation space, villa elevators typically have small shaft areas. To maximize shaft space utilization and improve passenger comfort, some villa elevators adopt a doorless design, meaning there is no car door on the car side, only outward-opening swing doors at each floor. This structure eliminates the need for a car door and its drive mechanism, effectively increasing the net usable area of ​​the car, while the outward-opening swing doors do not intrude into the shaft, perfectly meeting the compact space requirements of villa elevators.

[0003] When an elevator stops operating due to a malfunction, current technology typically relies on an Automatic Rescue Device (ARD) or a control system with intelligent rescue functions. This device uses a battery or backup power source to propel the elevator at low speed to the nearest landing. The elevator's main control board then issues a door-opening command, controlling the landing doors to evacuate trapped passengers. This conventional rescue logic is relatively mature in commercial elevators equipped with complete car and landing doors.

[0004] However, the inventors of this application have discovered in practical applications that the above-mentioned existing solutions have the following unresolved technical problems in the scenario of villa elevators without car doors and only having outward-opening swing hall doors: First, once the elevator smoothly reaches the floor level, if the power supply to the hall door operator fails (e.g., a damaged control transformer or a tripped circuit breaker) or the door opening drive signal output from the main control board malfunctions (e.g., a broken signal line or a failed output relay contact), the hall door will not open automatically. At this point, although the trapped personnel have reached the safe floor level, they remain trapped inside the car and can only wait for maintenance personnel with specialized tools to arrive. Rescue timeliness is severely compromised, especially at night or during unattended hours, potentially significantly extending the time trapped.

[0005] Secondly, existing emergency response methods mostly rely on maintenance personnel using a triangular key to mechanically open the door lock from the outside, or manually operating the release device inside the shaft. These operations not only require professional qualifications and experience and are cumbersome, but villa staircases are usually not equipped with on-site maintenance personnel, and family members or property management staff on site do not have the safety operation capabilities to intervene quickly within the "golden rescue window" after a malfunction occurs.

[0006] Third, there is currently a lack of dedicated electrified active rescue interfaces for outward-opening swing door structures. Conventional emergency devices often focus on powering the elevator control system as a whole, failing to provide independent power supply switching and forced drive for the hall door operator in the event of a partial failure of the door operator, and also failing to consider the special adaptation requirements of outward-opening door operators in terms of drive direction and installation space.

[0007] Fourth, and most critically, in a structure without a car door, there is no barrier between the car and the hoistway. If the emergency door opening operation is not strictly linked to the leveling position determination, and the door is accidentally triggered before the car has accurately reached the floor (i.e., not level), the people will be directly exposed to the hoistway opening after the hall door opens, which can easily lead to serious safety accidents such as falling into the void. Currently, there is no integrated emergency door opening solution in existing rescue systems specifically designed for this type of villa staircase without a car door, that combines "precise leveling rescue" with "safety interlocking to prevent misoperation."

[0008] In view of this, the present invention provides an active emergency rescue system suitable for villa elevators without car doors, aiming to overcome at least one of the shortcomings of the prior art. By combining the emergency button on the door with dual detection of power supply / door opening signal, independent switching of emergency power supply, forced door opening output, and safety interlocking at the leveling position, it can achieve fast, safe, and low-threshold active rescue, which is especially suitable for villa elevator application scenarios without car doors and with outward-opening hall doors. Summary of the Invention

[0009] The technical problem to be solved by this invention is how to achieve rapid, safe, and low-threshold proactive rescue. In order to overcome the defects of the above-mentioned prior art (or related technology), this invention provides an proactive emergency rescue system suitable for villa elevators without car doors.

[0010] This invention provides an active emergency rescue system suitable for a car-less villa elevator, including an elevator main control board, an automatic rescue module, an emergency power supply, a hall door outward-opening swing door operator, a door status detection module, a power switching module, and an emergency button located on the outer door head of the hall door of the car-less villa elevator. The car-less villa elevator only has an outward-opening swing door. The automatic rescue module is electrically connected to the elevator main control board and is used to trigger and control the elevator to return to the landing position in the event of an elevator malfunction. The door status detection module is connected to the power supply line and the door opening signal line of the hall door outward-opening swing door operator, and is used to detect the power supply status and door opening signal status in real time. The emergency button on the door head includes a power switching button and an emergency button. The elevator main control board is electrically connected to the emergency power supply, the outward-opening swing door operator, the door status detection module, the power switching module, and the emergency door button. When the elevator reaches the level position, if the power supply status indicates a power failure or the door opening signal status indicates an abnormality, the elevator main control board activates the emergency door button. When the emergency door opening button is pressed, the elevator main control board outputs a door opening drive signal to the outward-opening swing door operator to forcibly open the swing door. When the power switching button is pressed, the elevator main control board controls the power switching module to cut off the power supply line and switch to the emergency power supply to power the outward-opening swing door operator.

[0011] Compared with existing technologies, the active emergency rescue system for villa elevators without car doors proposed in this invention has the following advantages: This invention links the door status detection module with the emergency button on the door head, realizing a complete active rescue chain that includes detection, switching of emergency power, and forced output of door opening drive signals. Its implicit logic of activation only at the floor level ensures the accuracy of the rescue. At the same time, the emergency button on the door head is located on the outside of the hall door, allowing rescuers outside the hall to operate it directly without entering the shaft or relying on the control cabinet, greatly improving rescue accessibility and response speed. In addition, the outward-opening swing door of the hall door does not occupy shaft space, perfectly adapting to the narrow shaft structure of villa elevators, enabling fast, safe, and low-threshold active rescue.

[0012] In one possible implementation, the emergency button on the door is a physical push-button type with a waterproof and dustproof rating of not less than IP54.

[0013] Compared with existing technologies, the above-mentioned technical solution can avoid the risk of touch-sensitive buttons malfunctioning in emergency scenarios by setting the emergency buttons on the door as physical press-type buttons, ensuring that rescue operations are absolutely reliable. At the same time, the waterproof and dustproof rating of no less than IP54 allows the emergency buttons on the door to adapt to the outdoor waiting hall, humid or dusty environment that villa elevators may face, preventing the emergency buttons from jamming or failing due to environmental corrosion, and extending their service life.

[0014] In one possible implementation, the emergency power supply is the ARD emergency power supply or an independent backup power supply of the villa elevator without a car door. After the elevator main control board controls the power switching module to switch to the emergency power supply, it only supplies power to the outward-opening swing door operator of the hall door.

[0015] Compared with existing technologies, the above technical solution can avoid power diversion caused by the emergency power supply simultaneously supplying power to other loads such as the elevator main control board and lighting at the moment of switching, ensuring that there is sufficient power to drive the outward-opening swing door operator of the hall door to complete at least one complete door opening action, and preventing the risk of people being trapped from being aggravated by the door stopping midway due to insufficient power.

[0016] In one possible implementation, when the door status detection module detects that the power supply to the outward-opening swing door operator of the hall door has been restored and the door opening signal status indicates normal, it sends a reset signal to the elevator main control board, so that the elevator main control board controls the power switching module to cut off the emergency power supply and switch to the power supply line.

[0017] Compared with existing technologies, the above technical solution eliminates the need for manual reset by maintenance personnel or users, avoiding accidental disconnection of emergency power supply during normal operation due to human error in forgetting to reset, or consumption of backup power due to prolonged emergency standby, thus improving the system's intelligence and ease of operation and maintenance.

[0018] In one possible implementation, the outward-opening swing door operator is installed on the door frame or adjacent wall outside the hall door, and the drive arm of the outward-opening swing door operator is connected to the hall door swing door, so that the hall door swing door opens outward at an angle of not less than 90°.

[0019] Compared with existing technologies, the above technical solution can ensure that the swing doors of the hall can be fully opened to form an unobstructed evacuation passage, which meets the requirements of an unobstructed rescue passage, facilitates the rapid evacuation of trapped personnel, and also reserves sufficient space for the entry of rescue stretchers and other equipment, thus improving the humanization and efficiency of rescue.

[0020] In one possible implementation, the elevator main control board is equipped with a safety interlock mechanism, which restricts the power supply and signal circuit of the emergency door opening button from being cut off or locked when the elevator is in a non-level position.

[0021] Compared with existing technologies, the above-mentioned technical solution can fundamentally prevent serious safety accidents caused by people accidentally pressing the emergency door opening button in non-level areas, resulting in the hall door opening and people falling into the air. It is the core safety barrier to ensure that the entire active emergency rescue system is proactive but not dangerous.

[0022] In one possible implementation, an operation sequence interlock mechanism is provided between the power switching button and the emergency door opening button. The operation sequence interlock mechanism restricts the emergency door opening button to be pressed only after the power switching button is pressed and the power supply is switched to the emergency power.

[0023] Compared with existing technologies, the above technical solution can prevent operators from forcibly outputting door opening drive signals when the hall door outward swing door motor is completely de-energized. It avoids motor stalling, burnt-out drive board, or mechanical jamming caused by insufficient voltage or unstable power supply. Sequential operation can ensure that the hall door outward swing door motor obtains stable emergency power the moment it receives the door opening drive signal, realizing smooth and stable door opening action and protecting the hardware safety of the hall door outward swing door motor.

[0024] In one possible implementation, an alarm notification module is also included, connected to the elevator main control board, for continuously providing an audible and visual alarm when the emergency button on the door is activated and the emergency door opening button is pressed, to notify rescue personnel outside the hall that the elevator is currently in emergency door opening mode.

[0025] Compared with existing technologies, the above technical solution can remind irrelevant personnel outside the hall to stay away from the open doorway to prevent accidental falls; it also makes it easier for rescue or maintenance personnel to quickly locate the elevator that is already in the emergency open state, avoid repeated rescues, and improve the orderliness and safety of on-site rescue.

[0026] In one possible implementation, the door status detection module includes a power supply voltage detection unit and a door opening signal detection unit. The power supply voltage detection unit is used to determine whether the power supply voltage is lower than the minimum operating voltage of the door operator and output the corresponding power supply status. The door opening signal detection unit is used to determine whether the door opening signal is abnormally continuous or abnormally invalid and output the corresponding door opening signal status.

[0027] Compared with existing technologies, the above technical solution can avoid the system misinterpreting a brief interference in the signal line as a power failure of the door operator and blindly switching the emergency power supply. At the same time, it can accurately trigger forced door opening in scenarios where there is power but the signal is abnormal, thereby improving the accuracy of fault diagnosis and reducing ineffective rescue actions.

[0028] In one possible implementation, the power supply line of the outward-opening swing door operator and the emergency power supply are mechanically or relay-isolated through the power switching module.

[0029] Compared with existing technologies, the above technical solution can ensure that there is no risk of cross-current, backflow, or short circuit between the conventional power supply and the emergency power supply. It can protect the emergency power supply battery from being damaged by high voltage and prevent the electric arc during switching from interfering with the elevator main control board logic. This greatly enhances the electromagnetic compatibility of the system during switching transients and its long-term operational reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structural principle of the present invention. Detailed Implementation

[0031] First, those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] See Figure 1 This invention discloses an active emergency rescue system suitable for a villa elevator without a car door, including an elevator main control board, an automatic rescue module, an emergency power supply, a hall door outward-opening swing door operator, a door status detection module, a power switching module, and an emergency button located on the outer door head of the hall door of the villa elevator without a car door. The villa elevator without a car door only has an outward-opening swing door. The automatic rescue module is electrically connected to the elevator main control board and is used to trigger and control the elevator to level when the elevator malfunctions. The door status detection module is connected to the power supply line and the door opening signal line of the hall door outward-opening swing door operator, and is used to detect the power supply status and door opening signal status in real time. The emergency door opening button includes a power switching button and an emergency door opening button. The elevator main control board is electrically connected to the emergency power supply, the outward-opening swing door operator, the door status detection module, the power switching module, and the emergency door opening button. When the elevator reaches the landing position, if the power supply status indicates a power failure or the door opening signal status indicates an abnormality, the elevator main control board activates the emergency door opening button. When the emergency door opening button is pressed, the elevator main control board outputs a door opening drive signal to the outward-opening swing door operator to forcibly open the swing door. When the power switching button is pressed, the elevator main control board controls the power switching module to cut off the power supply line and switch to the emergency power supply to power the outward-opening swing door operator. When the power supply status indicates normal power supply and the door opening signal status indicates normal operation, the elevator main control board keeps the emergency door opening button locked to prevent accidental operation in non-emergency situations.

[0034] In this embodiment of the invention, the elevator main control board can be a PLC controller or an embedded microcontroller, which has an internally pre-installed emergency rescue control program. The automatic rescue module is an ARD device that conforms to the GB / T "Automatic Rescue Operation Device for Elevators" standard. This ARD device uses the residual current of the inverter's capacitor and the rotary encoder to determine and memorize the elevator position. When the elevator main power supply fails or a power supply fault occurs, the ARD device automatically starts operating. First, it disconnects the external power grid from the elevator control transformer through a contactor to achieve electrical interlocking. Then, it checks whether the elevator's safety circuit, door lock circuit, and maintenance circuit are normal. If they are normal, it supplies power to the traction machine and pulls the car to the nearest floor or the predetermined floor at a rescue speed not exceeding 0.3 m / s. After reaching the leveling position, it stops supplying power to the traction machine and closes the brake. If the automatic rescue module determines that the elevator stops running due to a fault in the safety circuit or door lock circuit, the automatic rescue module will not start emergency operation.

[0035] In this embodiment of the invention, the emergency button at the entrance is a physical push-button with a waterproof and dustproof rating of not less than IP54. As a preferred embodiment, the panel of the emergency button at the entrance has a conspicuous label, such as "Emergency Power" or a corresponding graphic symbol on the power switch button, and "Emergency Door Opening" or a corresponding graphic symbol on the emergency door opening button, so that rescue personnel outside the hall can quickly identify and operate it in an emergency. The emergency button at the entrance preferably adopts a self-resetting push-button switch, which automatically rebounds after being pressed to avoid the button being in a conductive state for a long time. In addition, the emergency button at the entrance can also be equipped with a protective cover, which is closed under normal circumstances to prevent dust and accidental touch. When in an emergency, the cover can be opened to operate the button.

[0036] In this embodiment of the invention, the emergency power supply is an ARD emergency power supply or an independent backup power supply for a villa elevator without a car door. After the elevator main control board switches the power switching module to the emergency power supply, it only supplies power to the outward-opening swing door operator of the hall door. As a preferred embodiment, the emergency power supply uses a battery pack, the rated voltage of which is configured according to the drive voltage requirements of the outward-opening swing door operator of the hall door, such as DC 24V or DC 48V. The emergency power supply is also equipped with a charging circuit. When the external power grid is normally powered, the charging circuit automatically float-charges the battery pack to maintain its rated operating voltage. The charging circuit has overcharge protection, over-discharge protection, overcurrent protection and short-circuit protection functions. The capacity of the emergency power supply is at least sufficient to meet the power requirements of the outward-opening swing door operator of the hall door to complete one complete door opening action (i.e., from fully closed to fully open and then back to fully closed). Preferably, its capacity can support three complete door opening-closing actions in succession to cope with the scenario where the door needs to be reopened due to obstacles after the first opening. The running time of the emergency power supply can be set according to the floor spacing and rescue speed. Preferably, the factory default value is set to 3 minutes.

[0037] In this embodiment of the invention, when the door status detection module detects that the power supply to the outward-opening swing door operator of the hall door has been restored and the door opening signal status indicates normal, it sends a reset signal to the elevator main control board, so that the elevator main control board controls the power switching module to cut off the emergency power supply and switch to the power supply line. As a preferred implementation, the reset signal is sent using a delayed judgment logic. That is, the door status detection module sends a reset signal to the elevator main control board only after the time for continuously detecting the power supply restoration and the normal door opening signal exceeds a preset threshold (e.g., 500 milliseconds) to prevent frequent switching due to momentary interference. After receiving the reset signal, the elevator main control board first controls the power switching module to cut off the connection between the emergency power supply and the outward-opening swing door operator of the hall door, and then connects the conventional power supply line after a certain delay (e.g., 100 milliseconds) to prevent cross-current between the two power supplies during the switching process. After the system exits the emergency mode, the emergency button on the door head returns to the locked state, and the charging circuit of the emergency power supply automatically resumes charging the battery pack.

[0038] In this embodiment of the invention, the outward-opening swing door operator is installed on the door frame or adjacent wall outside the hall door. The drive arm of the outward-opening swing door operator is connected to the hall door swing door, ensuring that the hall door swing door opens outward at an angle of not less than 90°. As a preferred embodiment, the outward-opening swing door operator is an electric swing door operator, which includes a drive motor, a reduction mechanism, a drive arm, and a mounting base. The drive motor is preferably a DC brushless motor, characterized by low noise and long lifespan. One end of the drive arm is connected to the output shaft of the reduction mechanism, and the other end is connected to... The door is fixedly connected to the swing door of the hall door via a connector; when the drive motor rotates forward, the drive arm pushes the door to rotate outward and open; when the drive motor rotates in reverse, the drive arm pulls the door to rotate inward and close. The outward swing door motor is installed on the outside of the hall door frame or on the adjacent wall, without occupying the internal space of the shaft, and is suitable for the narrow shaft structure of villa elevators. The outward opening angle of the swing door can preferably reach 120° to 180°, ensuring that an unobstructed evacuation passage is formed after opening. The swing door can adopt a single-leaf structure or a double-leaf opening structure.

[0039] In this embodiment of the invention, the elevator main control board is equipped with a safety interlock mechanism. This mechanism restricts the power supply and signal circuits of the emergency door opening button from being cut off or locked when the elevator is not in a level position. In a preferred embodiment, the safety interlock mechanism relies on the elevator's level position detection signal, which is provided by a leveling sensor installed in the hoistway. The leveling sensor includes a magnetic plate installed on the car and door zone switches installed at each floor of the hoistway. When the car reaches the level position, the magnetic plate inserts into the effective sensing area of ​​the door zone switch, and the door zone switch outputs the level position. The detection signal is sent to the elevator main control board. The elevator main control board only allows the operation signals of the power switching button and emergency door opening button of the door head emergency button to pass through when it confirms that it has received a valid leveling position detection signal and the door lock circuit is in a closed and safe state. Otherwise, the elevator main control board will physically cut off or logically lock the power supply circuit and signal circuit of the door head emergency button, so that no button operation can output a valid control signal. Preferably, the safety interlock mechanism further includes: when the elevator is in maintenance mode, the door head emergency button is also locked to prevent accidental opening of the hall door due to misoperation during maintenance.

[0040] In this embodiment of the invention, an operation sequence interlock mechanism is provided between the power switching button and the emergency door opening button. This mechanism restricts the emergency door opening button to be pressed only after the power switching button has been pressed and the power supply has switched to emergency power, in order to output a door opening drive signal. In a preferred embodiment, the operation sequence interlock mechanism is implemented through the logic control program within the elevator main control board: after the power switching button is pressed, the elevator main control board first controls the power switching module to complete the power switch and receives a switching completion feedback signal from the power switching module; only after confirming the switching completion feedback signal is valid does the elevator main control board release the emergency door opening button. The door opening button is locked, allowing it to be pressed and outputting a door opening drive signal; if the power switching button is not pressed or the power switching fails to complete successfully, the emergency door opening button remains locked and will not respond when pressed; this operation sequence interlock mechanism can effectively prevent operators from forcibly outputting a door opening drive signal when the outward-opening swing door motor is not powered, thus avoiding the motor of the outward-opening swing door motor from stalling and burning out due to insufficient power supply; preferably, the panel of the emergency button on the door head can also be equipped with an indicator light to indicate the current power supply status, for example, a red indicator light indicates that it has been switched to emergency power, and a green indicator light indicates that the normal power supply is normal.

[0041] In this embodiment of the invention, an alarm notification module is also included, connected to the elevator main control board. This module continuously provides an audible and visual alarm when the emergency door button is activated and the emergency door opening button is pressed, alerting rescue personnel outside the hall that the elevator is in an emergency door opening state. In a preferred embodiment, the alarm notification module includes a buzzer and a warning light, installed on the outer door head or adjacent wall. When the system enters the emergency door opening state, the buzzer emits an intermittent buzzing sound (e.g., once every second), and the warning light emits a flashing red light to simultaneously attract auditory and visual attention. The audible and visual alarm continues until the system exits the emergency mode or the swing door is manually closed. The alarm notification module can also be equipped with an in-car alarm unit to provide voice prompts (e.g., "The door is open, please leave the elevator quickly") to trapped personnel in the car during the emergency door opening state, guiding them to evacuate in an orderly manner.

[0042] In this embodiment of the invention, the door status detection module includes a power supply voltage detection unit and a door opening signal detection unit. The power supply voltage detection unit is used to determine whether the power supply voltage is lower than the minimum operating voltage of the door operator and outputs the corresponding power supply status. The door opening signal detection unit is used to determine whether the door opening signal is abnormally continuous or abnormally invalid and outputs the corresponding door opening signal status. As a preferred embodiment, the power supply voltage detection unit adopts a voltage comparator or an analog-to-digital converter sampling circuit, and its input terminal is connected to the power supply line of the outward-opening swing door operator. The power supply voltage detection unit has a preset voltage threshold, which is set according to the rated operating voltage of the swing door operator. For example, when the rated operating voltage of the outward-opening swing door operator is DC 24V, the voltage threshold can be set to 75% to 85% of the rated voltage (i.e., 18V to 20.4V). When the detected power supply voltage is lower than the voltage threshold, the power supply voltage detection unit outputs a "power out" status signal. When the supply voltage is equal to or higher than the voltage threshold, the “normal power supply” status signal is output; the door opening signal detection unit adopts a level detection circuit or an optocoupler isolation circuit, and its input terminal is connected to the door opening signal output terminal of the elevator main control board. The door opening signal detection unit determines whether the door opening signal has the following abnormal conditions: (1) the door opening signal is valid for a longer than the preset normal door opening time threshold (e.g., it has not been opened for more than 10 seconds), and is judged to be abnormally valid; (2) when the elevator is level and the door lock circuit is closed, the door opening signal is invalid for a longer than the preset waiting time threshold (e.g., it has been invalid for more than 5 seconds), and is judged to be abnormally invalid. When any of the above abnormal conditions are detected, the door opening signal detection unit outputs the “abnormal door opening signal” status signal; preferably, the door status detection module also includes an isolation circuit to electrically isolate the supply voltage detection unit and the door opening signal detection unit from the elevator main control board to prevent high voltage crosstalk from damaging the main control board.

[0043] In this embodiment of the invention, the power supply line and emergency power supply of the outward-opening swing door operator are mechanically or relay-isolated through a power switching module. As a preferred embodiment, the power switching module employs a dual-path power switching contactor or double-throw relay, which includes two input terminals (connected to the conventional power supply line and the emergency power supply respectively) and one output terminal (connected to the outward-opening swing door operator). Under normal conditions, the power switching module connects the conventional power supply line to the outward-opening swing door operator while simultaneously disconnecting the emergency power supply. When a switching command is received from the elevator main control board, the power switching module first... First, disconnect the conventional power supply line from the outward-opening swing door operator. After a certain safety delay (e.g., 50 to 100 milliseconds), connect the emergency power supply to the outward-opening swing door operator to achieve a seamless "disconnect first, connect later" switching. The power switching module uses mechanical isolation or relay isolation to ensure that the conventional power supply line and the emergency power supply will never be simultaneously connected at any time, preventing the two power supplies from being connected in series or short-circuited. Preferably, the power switching module is also equipped with a manual switching lever. In the extreme case where the elevator main control board fails completely, rescuers can manually operate the lever to complete the power switching, further improving the reliability of the system.

[0044] In this embodiment of the invention, the complete workflow of the proactive emergency rescue system is as follows: (1) Normal operation or fault triggering stage: When the elevator is running normally, the system is in standby mode. The emergency power supply is kept floating charge through the charging circuit. When the elevator experiences a main power failure or power supply failure, the automatic rescue module is automatically put into operation. First, it disconnects the external power grid from the elevator control transformer, checks the status of the safety circuit, door lock circuit and maintenance circuit, and after confirming that it is normal, it pulls the car to the nearest floor or the predetermined floor at the rescue speed (not exceeding 0.3m / s). (2) Leveling stop and door opening attempt stage: After the car reaches the leveling position, the automatic rescue module stops the power supply to the traction machine and closes the brake. The elevator main control board outputs the door opening drive signal according to the normal door opening process and attempts to control the outward-opening swing door operator of the hall door to open the hall door. (3) Fault detection and judgment stage: The door status detection module monitors the power supply status and door opening signal status of the outward-opening swing door operator of the hall door in real time. If the hall door opens normally, the rescue is successful, and the system records the rescue event and enters the standby state. If the door status detection module detects that the power supply voltage is lower than the preset threshold ("power failure" state) or the door opening signal is abnormally valid / abnormally invalid ("abnormal door opening signal" state), the elevator main control board determines that the hall door cannot open automatically and then activates the emergency button on the door head. (4) Emergency operation phase: After the rescue personnel outside the hall arrive at the scene, they open the protective cover of the emergency button on the door and press the power switching button first. After the elevator main control board receives the button signal, it controls the power switching module to cut off the connection between the normal power supply line and the hall door machine. After a safety delay, it connects the emergency power supply to the hall door machine. After the power switching is completed, the elevator main control board unlocks the emergency door opening button. Then, the emergency door opening button is pressed. The elevator main control board forcibly outputs the door opening drive signal to the hall door outward swing door machine to drive the hall door swing door to open outward. At the same time as the emergency door opening button is pressed, the alarm prompt module starts the sound and light alarm. (5) Safety interlock protection: During the entire emergency operation process described above, the safety interlock mechanism remains effective. The operation of the emergency button on the door head is only permitted when the elevator is in the level position (the level sensor outputs a valid level position detection signal) and the door lock circuit is in a closed and safe state. If the elevator is in a non-level position or the door lock circuit is disconnected, the power supply circuit and signal circuit of the emergency button on the door head are physically cut off or logically locked, and any button operation is invalid. (6) Reset and recovery phase: When the door status detection module detects that the normal power supply has been restored and the door opening signal is normal, and after a preset confirmation time (e.g., 500 milliseconds), it sends a reset signal to the elevator main control board. The elevator main control board controls the power switching module to disconnect the emergency power supply from the hall door outward swing door operator. After a delay, the normal power supply line is connected, the system exits the emergency mode and returns to the normal door opening control state. The emergency power supply charging circuit automatically resumes charging the battery pack, and the door emergency button returns to the locked state, waiting for the next activation.

[0045] In the description of this invention, the references to "one embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An active emergency rescue system suitable for villa elevators without car doors, characterized in that, The system includes an elevator main control board, an automatic rescue module, an emergency power supply, an outward-opening swing door operator, a door status detection module, a power switching module, and an emergency door button located on the outer door of the hall door of the car-less villa elevator. The car-less villa elevator only has outward-opening swing doors. The automatic rescue module is electrically connected to the elevator main control board and is used to trigger and control the elevator to return to the landing position in case of elevator malfunction. The door status detection module is connected to the power supply line and door opening signal line of the outward-opening swing door operator to detect the power supply status and door opening signal status in real time. The emergency door button includes a power switching button and an emergency door opening button. The elevator main control board is divided into... The elevator is not electrically connected to the emergency power supply, the outward-opening swing door operator, the door status detection module, the power switching module, and the emergency button on the door head. When the elevator slides to the level position, if the power supply status indicates a power failure or the door opening signal status indicates an abnormality, the elevator main control board activates the emergency button on the door head. When the emergency door opening button is pressed, the elevator main control board outputs a door opening drive signal to the outward-opening swing door operator to forcibly open the swing door. When the power switching button is pressed, the elevator main control board controls the power switching module to cut off the power supply line and switch to the emergency power supply to power the outward-opening swing door operator.

2. The active emergency rescue system according to claim 1, characterized in that, The emergency button on the door is a physical push-button type and has a waterproof and dustproof rating of not less than IP54.

3. The active emergency rescue system according to claim 1, characterized in that, The emergency power supply is the ARD emergency power supply or independent backup power supply of the villa elevator without a car door. After the elevator main control board controls the power switching module to switch to the emergency power supply, it only supplies power to the outward-opening swing door operator of the hall door.

4. The active emergency rescue system according to claim 1, characterized in that, When the door status detection module detects that the power supply to the outward-opening swing door operator of the hall door has been restored and the door opening signal status indicates normal, it sends a reset signal to the elevator main control board, so that the elevator main control board controls the power switching module to cut off the emergency power supply and switch to the power supply line.

5. The active emergency rescue system according to claim 1, characterized in that, The outward-opening swing door motor is installed on the door frame or adjacent wall outside the hall door. The drive arm of the outward-opening swing door motor is connected to the hall door swing door, and the hall door swing door opens outward at an angle of not less than 90°.

6. The active emergency rescue system according to claim 1, characterized in that, The elevator main control board is equipped with a safety interlock mechanism, which restricts the power supply and signal circuit of the emergency door opening button to be cut off or locked when the elevator is in a non-level position.

7. The active emergency rescue system according to claim 1, characterized in that, An operation sequence interlock mechanism is provided between the power switching button and the emergency door opening button. The operation sequence interlock mechanism restricts the emergency door opening button to be pressed only after the power switching button is pressed and the power supply is switched to the emergency power.

8. The active emergency rescue system according to claim 1, characterized in that, It also includes an alarm notification module connected to the elevator main control board, which is used to continuously provide an audible and visual alarm when the emergency button on the door is activated and the emergency door opening button is pressed, so as to notify rescue personnel outside the hall that the elevator is in the emergency door opening state.

9. The active emergency rescue system according to claim 1, characterized in that, The door status detection module includes a power supply voltage detection unit and a door opening signal detection unit. The power supply voltage detection unit is used to determine whether the power supply voltage is lower than the minimum operating voltage of the door operator and output the corresponding power supply status. The door opening signal detection unit is used to determine whether the door opening signal is abnormally continuous or abnormally invalid and output the corresponding door opening signal status.

10. The active emergency rescue system according to claim 1, characterized in that, The power supply line and the emergency power supply of the outward-opening swing door operator are mechanically or relay-isolated through the power switching module.

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