A method for judging door lock failure of a villa elevator

Abstract

A kind of method for judging door lock failure applied in villa elevator, comprising the following steps: step 1, door lock failure judging module is provided in each floor door, if floor door fails, the landing where the failure floor door is located is judged as failure landing, and floor door failure signal is sent to elevator control cabinet;Step 2, after elevator control cabinet receives floor door failure signal, control elevator car to run to other normal landing to put passengers out;Step 3, when there is no passenger in elevator car, elevator control cabinet controls elevator car to move to the direction of failure landing until elevator car stops below failure landing, at this time, the top of elevator car is close to or flush with the ground of failure landing.The present application can prevent passengers from falling into the shaft / tower from the floor door opened due to failure, effectively improve the safety of elevator;At the same time, using elevator car as maintenance platform, it is beneficial to improve the maintenance efficiency of floor door, so that the elevator can resume normal operation as soon as possible.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and specifically to a method for diagnosing door lock malfunctions in villa elevators. Background Technology

[0002] Elevator landing door locks are an important component of elevator landing doors. They prevent the doors from being opened accidentally, prevent shearing and falling accidents, and ensure personal safety.

[0003] Referring to Chinese patents CN214935089U and CN219567212U, in the prior art, to monitor whether the elevator landing door locks are abnormal, a door lock fault detection device is usually used to monitor the door locks in real time. An alarm is then triggered when a fault occurs, notifying maintenance personnel to promptly address the problem and restore the elevator to normal operation. However, currently, after detecting a landing door fault using a door lock fault detection device, the elevator control cabinet usually stops normal elevator operation immediately until the fault is resolved. Simultaneously, an external alarm module alerts passengers to the door fault. However, this remedial measure is still insufficient in terms of safety, especially when the faulty landing door is located on a floor above the second floor and the elevator car is positioned above the faulty door. Since the faulty door is open at this time, passengers who approach it out of curiosity risk falling into the shaft and / or elevator frame, potentially causing a safety accident. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a method for diagnosing door lock malfunctions in villa elevators.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A method for diagnosing door lock malfunctions in villa elevators includes the following steps:

[0007] Step 1: Each landing door is equipped with a door lock fault judgment module to monitor the elevator door lock status and determine whether the landing door corresponding to the elevator door lock is faulty. If the landing door is faulty, the landing station where the faulty landing door is located is determined to be the faulty landing station, and a landing door fault signal is sent to the elevator control cabinet.

[0008] Step 2: After receiving the landing door fault signal, the elevator control cabinet controls the elevator car to move to another normal landing to release the passengers.

[0009] Step 3: When there are no passengers in the elevator car, the elevator control cabinet automatically identifies the location of the faulty floor based on the monitoring results of the door lock fault judgment module. If the faulty floor is not the lowest floor, the elevator control cabinet controls the elevator car to move towards the faulty floor until the elevator car stops below the faulty floor. At this time, the top of the elevator car is close to or level with the ground of the faulty floor.

[0010] In this invention, in step 2, after the elevator control cabinet receives the landing door alarm signal, it uses a wireless communication module to send landing door fault alarm information to an external terminal. The external terminal includes a property monitoring center located in the property monitoring room and / or a remote monitoring center located at the elevator manufacturer.

[0011] In this invention, in step 2, the elevator control cabinet also controls the second voice alarm module to remind passengers of a floor door malfunction inside the elevator car.

[0012] In this invention, the remote monitoring center network is connected to a homeowner-side APP for receiving alarm signals from homeowners and a maintenance-side APP for directly sending alarm signals to maintenance personnel. When the landing door of the villa elevator malfunctions, the remote monitoring center simultaneously sends alarm signals to both the homeowner-side APP and the maintenance-side APP.

[0013] In this invention, in step 3, the hoistway and / or hoist frame are provided with a plurality of first sensing modules corresponding to each floor, and the elevator car is provided with a second sensing module that cooperates with the first sensing modules for positioning.

[0014] In this invention, step 4 is also included: after the elevator car stops moving, the elevator control cabinet controls the elevator car to start the locking device on the elevator car, locking the elevator car in the shaft and / or shaft frame so that it cannot move.

[0015] In this invention, the hoistway and / or hoist frame are equipped with multiple fault lock plates corresponding to each floor. The lock device includes a lock seat installed on the elevator car, a lock insert shaft movably installed on the lock seat, a safety switch installed on the lock seat, and a lock drive module for driving the lock insert shaft to insert into the fault lock plate of the corresponding faulty floor to lock the elevator when the floor door fails. The fault lock plate is provided with a fault lock hole. One end of the lock insert shaft is a lock rod for inserting into the fault lock hole to lock the elevator, and the other end is a lock sensing rod for contacting the trigger end of the safety switch after the lock rod is inserted into the fault lock hole.

[0016] In this invention, the two side walls of the locking ladder base are respectively provided with a first guide hole and a second guide hole. The locking ladder insertion rod is guided through the first guide hole, and the locking ladder sensing rod is guided through the second guide hole. The locking ladder sensing rod is provided with a locking ladder lever located between the two side walls of the locking ladder. The main wall of the locking ladder is provided with a ladder release groove and a ladder locking groove, and the ladder release groove and the ladder locking groove are connected by a sliding track groove.

[0017] In this invention, the locking ladder base is provided with a blocking device to prevent the locking ladder lever from disengaging from the locking ladder groove.

[0018] In this invention, the ladder locking base is also provided with a resistance device to prevent the ladder locking lever from disengaging from the ladder unlocking groove when the ladder locking is not required.

[0019] The beneficial effects of this invention are as follows: This invention utilizes a door lock fault detection module to monitor whether the landing doors are faulty. If a landing door at any floor malfunctions during elevator operation, and there are passengers in the elevator car, the elevator control cabinet controls the elevator car to move to another normal floor to release the passengers. When there are no passengers in the elevator car, the elevator control cabinet controls the elevator car to move towards the faulty floor until the elevator car stops below the faulty floor. At this time, the top of the elevator car is close to or level with the ground of the faulty floor, allowing the elevator car to act as a support platform within the hoistway and / or hoist frame, supporting passengers who mistakenly enter the hoistway and / or hoist frame through the faulty landing door. This prevents passengers from falling through the faulty landing door into the hoistway and / or hoist frame, effectively improving elevator safety. It also facilitates maintenance personnel using the elevator car as a repair platform, improving the efficiency of landing door repairs and allowing the elevator to quickly return to normal operation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 A schematic diagram showing the top of the elevator car being close to or level with the floor of the faulty floor;

[0022] Figure 2 This is a connection block diagram of this embodiment;

[0023] Figure 3 Three-dimensional locking mechanism Figure 1 ;

[0024] Figure 4 Three-dimensional locking mechanism Figure 2 ;

[0025] Figure 5 This is a top view of the locking mechanism;

[0026] Figure 6 This is a schematic diagram of the installation of the contact ball bearings;

[0027] Figure 7 This is a schematic diagram of the installation of the blocking mechanism;

[0028] Figure 8 This is a schematic diagram of the internal structure of the blocking mechanism. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] Reference Figure 1-8 A method for diagnosing door lock malfunctions in villa elevators includes the following steps:

[0031] Step 1: Each landing door 200 is equipped with a door lock fault judgment module 1 for monitoring the elevator door lock status to determine whether the landing door 200 corresponding to the elevator door lock is faulty. If the landing door 200 is faulty, the landing station where the faulty landing door 200 is located is determined to be the faulty landing station, and a landing door fault signal is sent to the elevator control cabinet 2.

[0032] Furthermore, the door lock fault judgment module 1 includes a monitoring and control module 11 for issuing a landing door fault signal when the elevator door lock malfunctions, an external call panel 12 for calling passengers from outside the landing door 200, and a door lock monitoring module 13 for detecting the on / off status of the elevator door lock. The external call panel 12 and the door lock monitoring module 13 are both electrically connected to the monitoring and control module 11. The external call panel 12 is communicatively connected to the elevator control cabinet 2 via a communication line. The external call panel 12 is equipped with a display screen 14, a light alarm module 15 for emitting an alarm light in the waiting hall when the landing door 200 malfunctions, and a sound alarm module 16 for emitting an alarm sound in the waiting hall when the landing door 200 malfunctions. The monitoring and control module 11 controls the light alarm module 15 and the sound alarm module 16. When the landing door 200 malfunctions, the monitoring and control module 11 controls the light alarm module 15 and the sound alarm module 16 to emit light and sound alarms respectively in the waiting hall, allowing passengers to quickly notice the landing door 200 alarm information displayed on the display screen 14. The sound alarm module 16 is a buzzer or a sound alarm module 16. If the sound alarm module 16 is a buzzer, it will emit a buzzing sound when the landing door 200 malfunctions; if the sound alarm module 16 is a first voice alarm module, the first voice alarm module will directly issue an alarm voice to inform the owner or passenger that the landing door 200 is in alarm.

[0033] Step 2: After receiving the landing door fault signal, elevator control cabinet 2 first uses the human infrared sensor 21 to monitor whether there are passengers in the elevator car 300. If there are passengers in the elevator car 300, it controls the elevator car 300 to run to another normal landing to release the passengers. If no passengers are detected in the elevator car 300, then step 3 is executed. Other normal landings are landings where the landing door 200 is not faulty. It can be the nearest landing to the faulty landing, i.e., the next or previous landing. During the process of releasing passengers, the elevator control cabinet 2 uses the human infrared sensor 21 to monitor the elevator in real time. Whether there are passengers in the elevator car 300 is determined by the presence of a human infrared sensor 21 installed inside the elevator car 300. Additionally, after receiving an alarm signal from the landing door 200, the elevator control cabinet 2 uses a wireless communication module 22 to send a landing door 200 malfunction alarm message to an external terminal. The wireless communication module 22 is integrated within the elevator control cabinet 2. Simultaneously, the elevator control cabinet 2 also controls a second voice alarm module 23 to alert passengers inside the elevator car 300 about the landing door 200 malfunction, for example, by informing passengers to exit the elevator car 300 at a normal landing, thereby preventing safety accidents. The second voice alarm module 23 is located inside the elevator car 300.

[0034] Furthermore, the external terminals include a property monitoring center 3 located in the property monitoring room and a remote monitoring center 4 located at the elevator manufacturer. After the monitoring and control module 11 of the door lock fault judgment module 1 detects a fault in the landing door 200 using the door lock monitoring module 13, the monitoring and control module 11 sends a landing door fault signal to the elevator control cabinet 2 through the external call panel 12. After receiving the landing door fault signal, the elevator control cabinet 2 simultaneously sends the landing door fault signal to the property monitoring center 3 and the remote monitoring center 4. The property monitoring center 3 allows property staff to immediately arrive at the scene to assist residents in placing barriers, etc., based on the landing door fault signal, so as to better remind and prohibit residents and passengers from approaching the faulty landing door 200 and reduce the occurrence of safety accidents. The remote monitoring center 4 allows manufacturer staff to handle the fault in a timely manner based on the landing door fault signal, such as notifying maintenance personnel at the elevator location to arrive at the fault site for repair, etc., so as to restore the elevator to normal operation as soon as possible and improve the elevator experience for residents and passengers.

[0035] Furthermore, since this method is applied to villa elevators, to ensure that more relevant personnel are aware of the landing door 200 malfunction information, the remote monitoring center 4 is network-connected to a homeowner-side APP 5 for receiving alarm signals from homeowners and a maintenance-side APP 6 for directly sending alarm signals to maintenance personnel. When the landing door 200 of the villa elevator malfunctions, the remote monitoring center 4 simultaneously sends alarm signals to both the homeowner-side APP 5 and the maintenance-side APP 6. Homeowners who are not at home can use the homeowner-side APP 5 to promptly understand the elevator malfunction situation; the maintenance-side APP 6 directly notifies maintenance personnel, allowing them to quickly arrive at the scene to handle the alarm and restore the elevator to normal operation. By utilizing the staff at the remote monitoring center 4 and the maintenance-side APP 6 to receive alarm signals, both manual relay and automatic notification can be used to inform maintenance personnel of alarm signals, facilitating timely arrival at the scene and ensuring the stability of alarm reception for maintenance personnel.

[0036] Step 3: When there are no passengers in the elevator car 300, the elevator control cabinet 2 automatically identifies the location of the faulty floor based on the monitoring results of the door lock fault judgment module.

[0037] If the faulty floor is not the lowest floor, the elevator control cabinet 2 controls the elevator car 300 to move towards the faulty floor until it stops below it. At this point, the top of the elevator car 300 is close to or level with the ground of the faulty floor, allowing it to serve as a support platform within the hoistway and / or hoist frame 100. This supports passengers who mistakenly enter the hoistway and / or hoist frame 100 through the faulty landing door 200, preventing them from falling. It also facilitates maintenance personnel using the elevator car 300 as a repair platform, improving the efficiency of the landing door 200 repairs and allowing the elevator to resume normal operation as quickly as possible. This structure enhances safety and effectively prevents accidents.

[0038] If the faulty floor is the lowest floor, the elevator control cabinet 2 will stop the elevator car 300 at a position where the bottom of the elevator car 300 is higher than the lowest floor. The optimal choice is for the elevator control cabinet 2 to stop the elevator car 300 at the position where the fault occurs at the second floor above the lowest floor, so as to avoid the elevator car 300 affecting the maintenance personnel to repair the elevator at the lowest floor.

[0039] For example, in this embodiment, the hoistway and / or hoist frame 100 has first-floor stations, second-floor stations, and third-floor stations distributed from bottom to top. The lowest station is the first-floor station, the second-floor station is the first station above the lowest station, and the third-floor station is the second station above the lowest station. Therefore, if the first-floor station is the faulty station, the elevator control cabinet 2 will move the elevator car 300 to the position where it should stop when the elevator malfunctions at the third-floor station, so as to avoid the elevator car 300 affecting the maintenance personnel to repair the elevator at the lowest station. Although there is no elevator car 300 as a support platform at this time, since villa elevators are usually set with shallow pits or even no pit, the probability of serious fall accidents when the owner, passengers, or maintenance personnel enter the hoistway and / or hoist frame 100 is small after the elevator car 300 is locked by the elevator locking device 7 and under the alarm reminders of various alarm modules on the external call panel 12.

[0040] Of course, in other embodiments, if the faulty floor is the lowest floor, the elevator control cabinet 2 can also directly level the elevator car 300 with the faulty floor, using the elevator car 300 to block the floor door 200 that was opened due to the fault, thereby preventing passengers from entering the shaft and / or hoist 100 and avoiding serious fall accidents in the shaft and / or hoist 100; then, after the maintenance personnel use the maintenance terminal APP to confirm to the remote monitoring center 4 that they have reached the fault site, the remote monitoring center 4 sends a signal to the elevator control cabinet 2 that the maintenance personnel have arrived. At this time, the elevator control cabinet 2 controls the elevator car 300 to move and stop at the position where the fault occurred at the second floor above the lowest floor.

[0041] Furthermore, the hoistway and / or hoist frame 100 is provided with a plurality of first sensing modules 24 corresponding one-to-one with each floor station, and the elevator car 300 is provided with a second sensing module 301 that cooperates with the first sensing module 24 for positioning. When the elevator car 300 moves towards the faulty floor station, and the second sensing module 301 corresponds exactly with the first sensing module 24, the elevator control cabinet 2 controls the elevator car 300 to stop moving.

[0042] In this embodiment, the second sensing module 301 is a sensing metal plate that can be sensed by the first sensing module 24. The first sensing module 24 is a stop sensing sensor electrically connected to the elevator control cabinet 2. When the landing door 200 malfunctions and the malfunctioning landing is not the lowest landing, the elevator control cabinet 2 controls the first sensing module 24 corresponding to the malfunctioning landing to start. When the first sensing module 24 is sensed by the second sensing module 301, the elevator control cabinet 2 immediately controls the elevator car 300 to stop running and cuts off the safety circuit. If the malfunctioning landing is the lowest landing, the elevator control cabinet 2 controls the first sensing module 24 at the location where the second landing above the lowest landing stops when malfunctioning to start.

[0043] Step 4: When the first sensing module 24 is sensed by the second sensing module 301, after the elevator car 300 stops moving, the elevator control cabinet 2 controls the elevator locking device 7 on the elevator car 300 to start, locking the elevator car 300 in the shaft and / or hoist 100 so that it cannot move, ensuring that the elevator car 300 does not move.

[0044] Furthermore, the hoistway and / or hoist frame 100 is equipped with multiple fault-locking ladder plates 500 corresponding to each floor, and the fault-locking ladder plates 500 are installed on the car guide rail 400; the ladder locking device 7 includes a ladder locking seat 71 installed on the elevator car 300, a ladder locking insert 72 movably installed on the ladder locking seat 71, a safety switch 73 installed on the ladder locking seat 71, and a ladder locking drive module 74 for driving the ladder locking insert 72 to insert into the fault-locking ladder plate 500 of the corresponding faulty floor to lock the ladder when the landing door 200 malfunctions. The fault-locking ladder plate 500 is provided with a fault lock hole 501, and one end of the ladder locking insert 72 is a ladder locking insert for inserting into the fault lock hole 501 to lock the ladder. The first end of the rod 721 is a locking rod 722, which is used to contact the trigger end of the safety switch 73 after the locking rod 721 is inserted into the fault lock hole 501. The diameter of the locking rod 722 is larger than that of the locking rod 721. Therefore, when the locking rod 721 is directly below the safety switch 73, the safety switch 73 is not triggered. When the locking rod 722 moves directly below the safety switch 73, the locking rod 722 touches the trigger end of the safety switch 73. The safety switch 73 is electrically connected to the elevator control cabinet 2. When the trigger end of the safety switch 73 is triggered by the locking rod 722, the safety circuit of the elevator is disconnected, and the elevator control cabinet 2 controls the elevator car 300 to remain in a stopped state.

[0045] Furthermore, the bottom of the locking ladder base 71 is provided with a connecting plate 70 for connecting to the elevator car 300. The locking ladder base 71 has a U-shaped cross-section and includes two locking ladder side walls and a locking ladder main wall connected to the two locking ladder side walls at both ends. The two locking ladder side walls are respectively provided with a first guide hole 711 and a second guide hole 712. The locking ladder insertion rod 721 is guided through the first guide hole 711, and the locking ladder sensing rod 722 is guided through the second guide hole 712. The locking ladder sensing rod 722 is provided with a locking ladder lever 723 located between the two locking ladder side walls. The main wall of the locking ladder is provided with interconnected release grooves 713 and locking grooves 714. When the locking device 7 does not need to lock the ladder, the locking lever 723 engages in the release groove 713 under the action of gravity. When the locking device 7 needs to automatically lock the ladder, the locking drive module 74 drives the locking shaft 72 to move towards the faulty locking plate 500. During this process, the locking lever 723 moves from the release groove 713 to the locking groove 714, and then the locking lever 723 engages in the locking groove 714 under the action of gravity, thereby keeping the faulty locking device 7 locked.

[0046] Furthermore, the locking groove 714 is vertically positioned, making it difficult for the locking lever 723 to retract once it enters the groove, thus preventing false locking. The unlocking groove 713 is inclined, with its bottom lower than the bottom of the locking groove 714, and its upper part tilting towards the side closer to the locking groove 714. This structure prevents the locking lever 723 from retracting upwards once it enters the locking groove 714 when the malfunctioning locking device 7 fails to lock the ladder, thus preventing false locking. The unlocking groove 713 and the locking groove 714 are connected by a sliding track groove 715, allowing the locking lever 723 to slide along the arc-shaped sliding track groove 715. The elongated hole allows the end of the sliding track groove 715 connected to the ladder locking groove 714 to be higher than the end of the sliding track groove 715 connected to the ladder release groove 713. This makes it easier for the ladder locking lever 723 to exit from the ladder locking groove 714. It also facilitates the movement of the ladder locking pin 72 towards the faulty ladder locking plate 500, allowing the ladder locking lever 723 to enter the ladder locking groove 714 along the arc. When the ladder locking drive module 74 drives the ladder locking pin 72 towards the faulty ladder locking plate 500, the ladder locking lever 723 moves upward along the ladder release groove 713, then enters the sliding track groove 715, and then swings upward and downward along the sliding track groove 715 to enter the ladder locking groove 714, thus realizing the entire ladder locking action. The above structure uses the ladder-unlocking groove 713 and the sliding track groove 715 to guide the ladder-locking lever 723 in sequence, so that the ladder-locking lever 723 can enter the ladder-locking groove 714 and use the vertically set ladder-locking groove 714 to realize the anti-accidental opening function and improve the stability of the ladder lock.

[0047] In a preferred embodiment, the elevator locking drive module 74 employs an electric push rod. The telescopic end of the electric push rod corresponds to the elevator locking sensor rod 722. The telescopic end of the electric push rod can be in contact with or separated from the elevator locking sensor rod 722, and there is no fixed connection between the telescopic end of the electric push rod and the elevator locking sensor rod 722. Under normal conditions (i.e., when the elevator locking device 7 does not require automatic elevator locking), the telescopic end of the electric push rod remains in a retracted state. When automatic elevator locking is required, the telescopic end of the electric push rod extends and pushes against the elevator locking sensor rod 722, causing the elevator locking rod 721 to move towards the faulty elevator locking plate 500 until the elevator locking rod 721 is inserted into the faulty elevator locking hole, thus completing the automatic elevator locking operation. After completing the automatic elevator locking operation, the telescopic end of the electric push rod automatically resets and moves away from the elevator locking sensor rod 722, realizing the separation action of the telescopic end of the electric push rod from the elevator locking sensor rod 722, so that maintenance personnel can manually unlock the elevator car 300 position. Because the telescopic end of the electric push rod is separate from the elevator locking sensor rod 722, and the telescopic end of the elevator push rod is normally in a retracted state, that is, the elevator locking pin 72 and the elevator locking drive module 74 are relatively independent, even if the electric push rod malfunctions and cannot automatically lock the elevator, maintenance personnel can manually operate the elevator locking pin 72 to manually lock the elevator after entering the shaft and / or hoistway 100, which effectively improves the safety of the elevator maintenance process.

[0048] The above structure can automatically reset away from the locking rod 721 after automatic locking, so that the electric push rod can only drive the locking shaft 72 to move towards the faulty locking plate 500 to achieve automatic locking, and cannot drive the locking shaft 72 to reset to achieve automatic unlocking of the elevator car 300. This means that the locking device 7 can only be manually operated to unlock, which can prevent maintenance personnel from accidentally starting the electric push rod to unlock during maintenance and thus effectively improve safety. In addition, when the elevator push rod pushes the locking sensor rod 722 to move, causing the locking lever 723 to move along the disengaging groove 713 and the sliding track groove 715 into the locking groove 714, the locking shaft 72 will be driven to rotate by the locking lever 723. At this time, the telescopic end of the elevator push rod is prone to rotational friction with the locking sensor rod 722, which causes the locking shaft 72 to not rotate smoothly axially. To solve this technical problem, the locking lever 721 is provided with a contact ball 75 at one end facing the locking drive module 74. The telescopic end of the electric push rod includes a mating seat 741 that movably engages with the contact ball 75. The mating seat 741 is made of nylon. By using the contact ball 75 to contact the mating seat 741, friction can be effectively reduced and the smoothness of the elevator push rod driving the locking shaft 72 to move axially can be improved.

[0049] In a preferred embodiment, the ladder locking base 71 is provided with a blocking device 8 to prevent the ladder locking lever 723 from disengaging from the ladder locking groove 714. The blocking device 8 can achieve the purpose of preventing mis-locking and ensure the stability of the ladder locking device 7 after locking. The blocking device 8 includes a blocking drive spring 81, a fixed shell 82 fixed to the main wall of the ladder, and a telescopic limiting block 83 for blocking the ladder locking lever 723. The fixed shell 82 is provided with a blocking telescopic groove 821, one end of which is a telescopic inlet / outlet. The blocking drive spring 81 is located in the blocking telescopic groove 821 and one end is in contact with the groove surface of the blocking telescopic groove 821. The telescopic limiting block 83 is slidably guided from the telescopic inlet / outlet position and cooperates with the blocking telescopic groove 821 and the blocking drive spring. The other end of 81 is connected to the telescopic limiting block 83 of the blocking device 8, one end of which is movably blocked at the entrance and exit position of the locking ladder groove 714; the other end of the telescopic limiting block 83 is provided with a compression inclined surface 831, the compression inclined surface 831 is inclined relative to the telescopic direction of the telescopic limiting block 83, the end of the compression inclined surface 831 away from the blocking drive spring 81 is close to the entrance and exit of the locking ladder groove 714, and the end of the compression inclined surface 831 close to the blocking drive spring 81 is away from the entrance and exit of the locking ladder groove 714.

[0050] As the locking lever 723 slides from the sliding track groove 715 to the unlocking groove 713, it slides over the compression ramp 831 on the telescopic limit block 83, causing the locking lever 723 to press the telescopic limit block 83 into the blocking telescopic groove 821. At this time, the blocking drive spring 81 is in a compressed state. After the locking lever 723 continues to move towards the unlocking groove 713 and leaves the telescopic limit block 83, the blocking drive spring 81 unfolds and pushes against the telescopic limit block 83, causing the end of the telescopic limit block 83 away from the blocking drive spring 81 to extend and block the entrance and exit positions of the locking groove 714, thereby achieving the purpose of preventing mis-locking. The blocking device 8 with this structure is simple and reasonable. The blocking device 8 can directly realize the automatic anti-mis-locking function during the process of the locking lever 723 sliding from the sliding track groove 715 to the unlocking groove 713. It is simple and convenient, and effectively saves the control cost of the blocking device 8.

[0051] Furthermore, the fixed housing 82 is provided with a limiting elongated hole 822, the length direction of which is parallel to the moving direction of the telescopic limiting block 83. The telescopic limiting block 83 is provided with a limiting rod 84 that is movably fitted in the limiting elongated hole 822. The limiting rod 84 and the limiting elongated hole 822 can restrict the telescopic stroke of the telescopic limiting block 83 and prevent the telescopic limiting block 83 from disengaging from the blocking telescopic groove 821. In addition, the end of the limiting rod 84 that extends out of the fixed housing 82 is an operating lever. When the maintenance personnel pull the operating lever, the telescopic limiting block 83 can be retracted into the unlocking telescopic groove to release the restriction of the elevator locking lever 723, allowing the maintenance personnel to manually release the elevator position lock.

[0052] As a preferred embodiment, although when the locking lever 723 is located in the release groove 713, the locking lever 723 can be stably engaged in the release groove 713 under the action of gravity, and it is not easy for it to move towards the locking groove 714, in order to further ensure the normal operation of the elevator, the locking seat 71 is also provided with a resistance device 9 to prevent the locking lever 723 from disengaging from the release groove 713 when locking is not required. The resistance device 9 can provide a certain resistance under the action of the blocking drive spring 81, reducing the probability that the locking lever 723 will move towards the locking groove 714 due to vibration during the operation of the elevator, thereby achieving the purpose of preventing accidental locking and ensuring that the elevator can operate normally.

[0053] The resistance device 9 and the blocking device 8 used in this embodiment have the same structural principle. One end of the telescopic limiting block 83 of the resistance device 9 is movably blocked at the entrance and exit position of the ladder release groove 713. When the ladder locking lever 723 is unlocked due to vibration, under the large thrust of the electric push rod and the push of the maintenance personnel, the ladder locking lever 723 can sequentially press the telescopic limiting block 83 of the resistance device 9 and the telescopic limiting block 83 of the blocking device 8 into their corresponding blocking telescopic grooves, so that the ladder locking lever 723 can enter the ladder locking groove 714 to achieve the purpose of locking the ladder.

[0054] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by essentially the same means is within the protection scope of the present invention.

Claims

1. A method for diagnosing door lock malfunctions in villa elevators, characterized in that: Includes the following steps: Step 1: Each landing door (200) is equipped with a door lock fault judgment module (1) for monitoring the elevator door lock status to determine whether the landing door (200) corresponding to the elevator door lock is faulty. If the landing door (200) is faulty, the landing station where the faulty landing door (200) is located is determined to be the faulty landing station, and a landing door fault signal is sent to the elevator control cabinet (2). Step 2: After receiving the landing door fault signal, the elevator control cabinet (2) controls the elevator car (300) to run to other normal landings to release passengers. Step 3: When there are no passengers in the elevator car (300), the elevator control cabinet (2) automatically identifies the location of the faulty floor based on the monitoring results of the door lock fault judgment module. If the faulty floor is not the lowest floor, the elevator control cabinet (2) controls the elevator car (300) to move towards the faulty floor until the elevator car (300) stops below the faulty floor. At this time, the top of the elevator car (300) is close to or level with the ground of the faulty floor. Step 4: After the elevator car (300) stops moving, the elevator control cabinet (2) controls the elevator locking device (7) on the elevator car (300) to start, locking the elevator car (300) in the shaft and / or hoist (100) so that it cannot move. The hoistway and / or hoist frame (100) are provided with a plurality of fault lock plates (500) corresponding to each floor station; the lock device (7) includes a lock seat (71) installed on the elevator car (300), a lock shaft (72) movably installed on the lock seat (71), a safety switch (73) installed on the lock seat (71), and a lock drive module (74) for driving the lock shaft (72) to insert into the fault lock plate (500) where the corresponding fault floor station is located to lock the elevator when the floor door (200) fails. The fault lock plate (500) is provided with a fault lock hole (501). One end of the lock shaft (72) is a lock rod (721) for inserting into the fault lock hole (501) to lock the elevator, and the other end is a lock sensing rod (722) for contacting the trigger end of the safety switch (73) after the lock rod (721) is inserted into the fault lock hole (501). The two side walls of the locking ladder base (71) are respectively provided with a first guide hole (711) and a second guide hole (712). The locking ladder insertion rod (721) is guided through the first guide hole (711), and the locking ladder sensing rod (722) is guided through the second guide hole (712). The locking ladder sensing rod (722) is provided with a locking ladder lever (723) located between the two side walls of the locking ladder. The main wall of the locking ladder is provided with a ladder release groove (713) and a ladder locking groove (714). The ladder release groove (713) and the ladder locking groove (714) are connected by a sliding track groove (715). The locking ladder seat (71) is provided with a blocking device (8) to prevent the locking ladder lever (723) from disengaging from the locking ladder groove (714). The ladder lock base (71) is also provided with a resistance device (9) to prevent the ladder lock lever (723) from disengaging from the ladder release groove (713) when the ladder lock is not needed.

2. The method for determining door lock malfunctions in a villa elevator according to claim 1, characterized in that: In step 2, after receiving the alarm signal of the landing door (200), the elevator control cabinet (2) sends the landing door (200) fault alarm information to the external terminal using the wireless communication module (22). The external terminal includes the property monitoring center (3) located in the property monitoring room and / or the remote monitoring center (4) located in the elevator manufacturer.

3. The method for diagnosing door lock malfunctions in a villa elevator according to claim 1, characterized in that: In step 2, the elevator control cabinet (2) also controls the second voice alarm module (23) to remind passengers of the floor door (200) malfunction inside the elevator car (300).

4. The method for determining door lock malfunctions in a villa elevator according to claim 1, characterized in that: The remote monitoring center (4) is connected to a homeowner-side APP (5) for receiving alarm signals from homeowners and a maintenance-side APP (6) for sending alarm signals directly to maintenance personnel. When the landing door (200) of the villa elevator malfunctions, the remote monitoring center (4) simultaneously sends alarm signals to the homeowner-side APP (5) and the maintenance-side APP (6).

5. The method for determining door lock malfunctions in a villa elevator according to claim 1, characterized in that: In step 3, the hoistway and / or hoist frame (100) are provided with a plurality of first sensing modules (24) corresponding to each floor, and the elevator car (300) is provided with a second sensing module (301) that cooperates with the first sensing module (24) for positioning.

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