Method applied to villa elevator for judging door lock fault

Abstract

A door lock fault judging method applied to a villa elevator comprises the following steps that 1, a door lock fault judging module is arranged in each landing door, if the landing door breaks down, it is judged that a landing station where the fault landing door is located is a fault landing station, and a landing door fault signal is sent to an elevator control cabinet; 2, after the elevator control cabinet receives the landing door fault signal, the elevator control cabinet controls an elevator car to run to other normal landing to release passengers; and 3, after no passenger exists in the elevator car, the elevator control cabinet controls the elevator car to move towards the fault landing until the elevator car stops below the fault landing, and at the moment, the top of the elevator car is close to or flush with the ground of the fault landing. According to the invention, passengers can be prevented from entering the shaft / derrick from the landing door opened due to faults to cause falling accidents, so that the safety of the elevator is effectively improved; and meanwhile, the elevator car is used as a maintenance platform, so that the maintenance efficiency of the landing door is improved, and the elevator can recover normal operation as soon as possible.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a method for judging door lock failures in a villa elevator. Background Art

[0002] Elevator floor door locks are an important part of elevator floor doors, preventing them from being opened accidentally. They can prevent shearing and falling accidents and ensure personal safety.

[0003] Referring to the Chinese patent with publication (announcement) number CN214935089U and the Chinese patent with publication (announcement) number CN219567212U, in the prior art, in order to monitor whether the door lock of the elevator floor door is abnormal, a door lock fault detection device is usually used to monitor the door lock of the floor door in real time, and then an alarm is issued when a fault occurs, notifying the maintenance staff to go to the fault location in time to troubleshoot the fault, so that the elevator can resume normal use as soon as possible. However, at present, after the elevator control cabinet detects the floor door fault using the door lock fault detection device, it usually immediately stops the normal operation of the elevator until the fault is eliminated, and at the same time, a corresponding alarm module is set externally to remind passengers of the floor door fault, but this relief measure is still insufficient in safety, especially when the faulty floor door is located at a floor station above the second floor and the elevator car stays at a position higher than the faulty floor door, because the faulty floor door is in an open state at this time, when the passenger approaches the faulty floor door out of curiosity, there is a risk of falling into the shaft / derrick, thereby causing a safety accident. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a method for determining door lock failures in a villa elevator.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A method for judging door lock failure in a villa elevator comprises the following steps: Step 1: A door lock fault judgment module is provided in each floor door for monitoring the elevator door lock state to judge whether the floor door corresponding to the elevator door lock is faulty. If the floor door is faulty, the floor station where the faulty floor door is located is judged as the faulty floor station, and a floor door fault signal is sent to the elevator control cabinet; Step 2: After receiving the floor door fault signal, the elevator control cabinet controls the elevator car to run to other normal floor stations to release the passengers; Step 3. When there are no passengers in the elevator car, the elevator control cabinet automatically identifies the location of the faulty floor station according to the monitoring results of the door lock fault judgment module; if the faulty floor station is not the lowest floor station, the elevator control cabinet controls the elevator car to move toward the faulty floor station until the elevator car stays below the faulty floor station, at which time the top of the elevator car is close to or flush with the ground of the faulty floor station.

[0006] In the present invention, in step 2, after the elevator control cabinet receives the floor door alarm signal, it uses the wireless communication module to send the floor door failure alarm information to the external terminal, and the external terminal includes a property monitoring center located in the property monitoring room and / or a remote monitoring center located in the elevator manufacturer.

[0007] In the present invention, in step 2, the elevator control cabinet also controls the second voice alarm module to remind passengers in the elevator car of the floor door failure.

[0008] In the present invention, the remote monitoring center network is connected to an owner-side APP for receiving alarm signals to the owner and a maintenance-side APP for directly sending alarm signals to maintenance personnel. When the floor door of the villa elevator fails, the remote monitoring center synchronously sends the alarm signal to the owner-side APP and the maintenance-side APP.

[0009] In the present invention, in step 3, the shaft / derrick is provided with a plurality of first sensing modules corresponding to each landing station one by one, and the elevator car is provided with a second sensing module positioned in coordination with the first sensing module.

[0010] The present invention further includes step 4: after the elevator car stops moving, the elevator control cabinet controls the elevator locking device on the elevator car to start, locking the elevator car in the shaft / well frame so that it cannot move.

[0011] In the present invention, a plurality of faulty elevator locking plates corresponding to each floor station are provided in the shaft / derrick; the elevator locking device comprises a elevator locking seat installed on the elevator car, a elevator locking shaft movably arranged on the elevator locking seat, a safety switch installed on the elevator locking seat, and an elevator locking driving module for driving the elevator locking shaft to be inserted into the faulty elevator locking plate corresponding to the faulty floor station to achieve elevator locking when a floor door fails, a faulty elevator locking plate is provided with a faulty lock hole, one end of the elevator locking shaft is a elevator locking rod for being inserted into the faulty lock hole to achieve elevator locking action, and the other end is a elevator locking sensing rod for contacting the triggering end of the safety switch after the elevator locking rod is inserted into the faulty lock hole.

[0012] In the present invention, a first guide hole and a second guide hole are respectively provided on the two ladder lock side walls of the ladder lock seat, the ladder lock rod is guided through the first guide hole, and the ladder lock sensing rod is guided through the second guide hole; the ladder lock sensing rod is provided with a ladder lock lever located between the two ladder lock side walls; the ladder lock main wall is provided with a ladder release groove and a ladder lock groove, and the ladder release groove and the ladder lock groove are connected by a sliding track groove.

[0013] In the present invention, a blocking device for preventing the ladder locking lever from escaping from the ladder locking groove is provided on the ladder locking seat.

[0014] In the present invention, the ladder locking seat is further provided with a resistance device for preventing the ladder locking lever from being separated from the ladder releasing groove when the ladder is not needed to be locked.

[0015] The beneficial effects of the present invention are as follows: the present invention utilizes the door lock fault judgment module to monitor whether the floor door is faulty. When the floor door of any floor station fails during the use of the elevator, if there are passengers in the elevator car, the elevator control cabinet controls the elevator car to run to other normal floor stations to release the passengers. When there are no passengers in the elevator car, the elevator control cabinet controls the elevator car to move toward the faulty floor station until the elevator car stays below the faulty floor station. At this time, the top of the elevator car is close to or flush with the ground of the faulty floor station, so that the elevator car can be used as a supporting platform in the shaft / derrick to support passengers who mistakenly pass through the faulty floor door and enter the shaft / derrick, thereby preventing passengers from entering the shaft / derrick from the floor door opened due to the fault and causing falling accidents, effectively improving the safety of the elevator; at the same time, it is also convenient for maintenance personnel to use the elevator car as an inspection platform, which is beneficial to improving the maintenance efficiency of the floor door, so that the elevator can resume normal operation as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 A schematic diagram showing that the top of the elevator car is close to or flush with the ground of the faulty landing; Figure 2 is a connection block diagram of this embodiment; Figure 3 Three-dimensional stair lock device Figure 1 ; Figure 4 Three-dimensional stair lock device Figure 2 ; Figure 5 is a top view of the ladder locking device; Figure 6 The installation diagram of the contact ball is shown in FIG. Figure 7 It is a schematic diagram of the installation of the blocking mechanism; Figure 8 Schematic diagram of the interior of the blocking mechanism. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] Reference Figure 1-8 A method for judging door lock failure in a villa elevator comprises the following steps: Step 1: A door lock fault judgment module 1 is provided in each floor door 200 for monitoring the elevator door lock state to judge whether the floor door 200 corresponding to the elevator door lock is faulty. If the floor door 200 is faulty, the floor station where the faulty floor door 200 is located is judged as a faulty floor station, and a floor door fault signal is sent to the elevator control cabinet 2; Further, the door lock fault judgment module 1 includes a monitoring control module 11 for sending a floor door fault signal when the elevator door lock fails, an outbound call panel 12 for calling passengers outside the floor door 200, and a door lock monitoring module 13 for detecting the on / off state of the elevator door lock. The outbound call panel 12 and the door lock monitoring module 13 are both electrically connected to the monitoring control module 11; the outbound call panel 12 is connected to the elevator control cabinet 2 by a communication line, and the outbound call panel 12 is provided with a display screen 14, a light alarm module 15 for sending an alarm light in the elevator lobby when the floor door 200 fails, and a sound alarm module 16 for sending an alarm sound in the elevator lobby when the floor door 200 fails. The monitoring control module 11 is connected to control the light alarm module 15 and the sound alarm module 16. When the floor door 200 fails, the monitoring control module 11 controls the light alarm module 15 and the sound alarm module 16 to send a light alarm and a sound alarm in the elevator lobby, respectively, so that the owner and passengers can quickly notice the alarm information of the floor door 200 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 floor door 200 fails; if the sound alarm module 16 is a first voice alarm module, the first voice alarm module will directly emit an alarm voice to inform the owner and passengers that the floor door 200 is alarming.

[0019] Step 2, after the elevator control cabinet 2 receives the floor door fault signal, the 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, the elevator car 300 is controlled to run to other normal floors to release the passengers. If it is detected that there are no passengers in the elevator car 300, step 3 is executed; other normal floors are floors where the floor door 200 is not faulty, which can be the nearest floor to the faulty floor, that is, the next floor or the previous floor of the faulty floor; in the process of the elevator car 300 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, the human infrared sensor 21 is installed in the elevator car 300; in addition, after the elevator control cabinet 2 receives the alarm signal of the floor door 200, it uses the wireless communication module 22 to send the floor door 200 fault alarm information to the external terminal, and the wireless communication module 22 is integrated in the elevator control cabinet 2; at the same time, the elevator control cabinet 2 also controls the second voice alarm module 23 in the elevator car 300 to remind passengers of the failure of the floor door 200, for example, informing passengers to remind passengers to leave the elevator car 300 at the normal floor station, so as to avoid the occurrence of safety accidents, and the second voice alarm module 23 is arranged in the elevator car 300.

[0020] Furthermore, the external terminal includes a property monitoring center 3 located in the property monitoring room and a remote monitoring center 4 located in the elevator manufacturer. After the monitoring and control module 11 of the door lock fault judgment module 1 uses the door lock monitoring module 13 to detect the fault of the floor door 200, the monitoring and control module 11 sends a floor door fault signal to the elevator control cabinet 2 through the external call panel 12. After the elevator control cabinet 2 receives the floor door fault signal, the elevator control cabinet 2 synchronously sends the floor door fault signal to the property monitoring center 3 and the remote monitoring center 4. The property monitoring center 3 allows the property staff to arrive at the scene immediately according to the floor door fault signal to assist the owner in placing a fence, etc., so as to better remind and prohibit the owner and passengers from approaching the faulty floor door 200 and reduce the occurrence of safety accidents; the remote monitoring center 4 allows the manufacturer's staff to handle the fault in time according to the floor door fault signal, such as notifying the maintenance staff at the elevator location to arrive at the fault site for repair and processing, etc., so as to restore the elevator to normal operation as soon as possible and improve the elevator experience of the owner and passengers.

[0021] Furthermore, since the method is applied to villa elevators, in order to let more relevant personnel know the fault information of the floor door 200, the remote monitoring center 4 network is connected to the owner-side APP5 for receiving alarm signals for the owner and the maintenance-side APP6 for directly sending alarm signals to the maintenance staff. When the floor door 200 of the villa elevator fails, the remote monitoring center 4 synchronously sends the alarm signal to the owner-side APP5 and the maintenance-side APP6; wherein, the owner passenger who is not at home can use the owner-side APP5 to timely understand the fault of the villa elevator; the maintenance-side APP6 directly notifies the maintenance staff, so that the maintenance staff can quickly arrive at the scene to deal with the alarm situation, so that the elevator can quickly resume normal operation. By using the staff of the remote monitoring center 4 and the maintenance-side APP6 to receive the alarm signal, the role of informing the maintenance staff of the alarm signal in both manual transmission and automatic notification can be realized, which is convenient for the maintenance staff to obtain the floor door fault signal in different ways and arrive at the scene in time to deal with it, and ensure the stability of the maintenance staff receiving the fault alarm.

[0022] Step 3: When there are no passengers in the elevator car 300, the elevator control cabinet 2 automatically identifies the faulty landing location according to the monitoring result of the door lock fault judgment module.

[0023] If the faulty floor station is not the lowest floor station, the elevator control cabinet 2 controls the elevator car 300 to move toward the faulty floor station until the elevator car 300 stops below the faulty floor station. At this time, the top of the elevator car 300 is close to or flush with the ground of the faulty floor station, so that the elevator car 300 can be used as a support platform in the shaft / derrick 100 to support passengers who mistakenly pass through the faulty floor door 200 to enter the shaft / derrick 100, thereby preventing passengers from entering the shaft / derrick 100 from the position of the faulty floor door 200 and causing a fall accident; at the same time, it is also convenient for maintenance personnel to use the elevator car 300 as a maintenance platform, which is conducive to improving the maintenance efficiency of the floor door 200, so that the elevator can resume normal operation as soon as possible. The above structure can improve safety and effectively prevent the occurrence of safety accidents; If the faulty landing is the lowest landing, the elevator control cabinet 2 stops the elevator car 300 at a position where the bottom of the elevator car 300 is higher than the lowest landing. It is most preferred that the elevator control cabinet 2 stops the elevator car 300 at the second landing above the lowest landing, so as to prevent the elevator car 300 from affecting the maintenance staff when repairing the elevator at the lowest landing. For example, in the present embodiment, the shaft / derrick 100 has a first-floor station, a second-floor station, and a third-floor station distributed from bottom to top. At this time, the lowest floor station is the first-floor station, the second-floor station is the first floor station above the lowest floor station, and the third-floor station is the second floor station above the lowest floor station. Therefore, if the first-floor station is a faulty floor station, the elevator control cabinet 2 moves the elevator car 300 to the position where it should stay when the third-floor station fails, so as to avoid the elevator car 300 affecting the maintenance staff in repairing the elevator at the lowest floor station; although there is no elevator car 300 as a supporting platform at this time, since villa elevators are usually set up with shallow pits or even no pits, after the elevator car 300 is locked by the elevator locking device 7 and the alarm reminders of various alarm modules on the external call panel 12 are given, the probability of serious falling safety accidents occurring when the owner passengers or maintenance staff enter the shaft / derrick 100 is small.

[0024] Of course, in other embodiments, if the faulty floor station is the lowest floor station, the elevator control cabinet 2 can also directly level the elevator car 300 with the faulty floor station, and use the elevator car 300 to block the floor door 200 opened due to the fault, thereby preventing passengers from entering the shaft / derrick 100 and avoiding the occurrence of serious falling safety accidents in the shaft / derrick 100; then, after the maintenance staff uses the maintenance end APP to confirm to the remote monitoring center 4 that they have arrived at the fault site, the remote monitoring center 4 feeds back a maintenance personnel arrival signal to the elevator control cabinet 2, at which time the elevator control cabinet 2 controls the elevator car 300 to move and stop at the second floor station above the lowest floor station where it stopped when the fault occurred.

[0025] Furthermore, the shaft / derrick 100 is provided with a plurality of first sensing modules 24 corresponding one to each floor station, and the elevator car 300 is provided with a second sensing module 301 which is positioned in coordination with the first sensing module 24. When the elevator car 300 moves toward the faulty floor station, when the second sensing module 301 corresponds to the first sensing module 24, the elevator control cabinet 2 controls the elevator car 300 to stop moving.

[0026] In this embodiment, the second sensing module 301 is a sensing metal plate that can be sensed by the first sensing module 24, and the first sensing module 24 is a stop sensing sensor electrically connected to the elevator control cabinet 2; when the floor door 200 fails and the failed floor station is not the lowest floor station, the elevator control cabinet 2 controls the first sensing module 24 corresponding to the failed floor station to start, and 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 failed floor station is the lowest floor station, the elevator control cabinet 2 controls the first sensing module 24 corresponding to the second floor station above the lowest floor station to start.

[0027] Step 4. When the first sensing module 24 is sensed by the second sensing module 301, the elevator car 300 stops moving, and 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 / derrick 100 and preventing it from moving, thereby ensuring that the elevator car 300 does not move.

[0028] Furthermore, a plurality of fault lock plates 500 corresponding to each floor station are provided in the shaft / derrick 100, and the fault lock plates 500 are installed on the car guide rails 400; the lock device 7 comprises a lock seat 71 installed on the elevator car 300, a lock shaft 72 movably arranged 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 be inserted into the fault lock plate 500 corresponding to the fault floor station to achieve lock of the ladder when the floor door 200 fails, the fault lock plate 500 is provided with a fault lock hole 501, and one end of the lock shaft 72 is a lock rod for inserting into the fault lock hole 501 to achieve lock of the ladder. 721, and the other end is a ladder lock sensing rod 722 for contacting the triggering end of the safety switch 73 after the ladder lock rod 721 is inserted into the fault lock hole 501. The diameter of the ladder lock sensing rod 722 is larger than the diameter of the ladder lock rod 721, so that when the ladder lock rod 721 moves just below the safety switch 73, the safety switch 73 is not triggered, and when the ladder lock sensing rod 722 moves just below the safety switch 73, the ladder lock sensing rod 722 touches the triggering end of the safety switch 73; the safety switch 73 is electrically connected to the elevator control cabinet 2, and when the triggering end of the safety switch 73 is triggered by the ladder lock sensing 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.

[0029] Furthermore, a connecting plate 70 for connecting to the elevator car 300 is provided at the bottom of the ladder lock seat 71, and the cross-sectional shape of the ladder lock seat 71 is U-shaped. The ladder lock seat 71 includes two ladder lock side walls and a ladder lock main wall connected to the two ladder lock side walls at both ends. The two ladder lock side walls are respectively provided with a first guide hole 711 and a second guide hole 712. The ladder lock plug rod 721 is guided through the first guide hole 711, and the ladder lock sensing rod 722 is guided through the second guide hole 712; the ladder lock sensing rod 722 is provided with a ladder lock lever 723 located between the two ladder lock side walls; A ladder unlocking groove 713 and a ladder locking groove 714 which are interconnected are provided on the main wall of the ladder lock; when the ladder locking device 7 does not need to lock the ladder, the ladder locking lever 723 is engaged in the ladder unlocking groove 713 under the action of gravity; when the ladder locking device 7 needs to automatically lock the ladder, the ladder locking drive module 74 drives the ladder locking shaft 72 to move toward the faulty ladder locking plate 500, during which the ladder locking lever 723 moves from the ladder unlocking groove 713 to the ladder locking groove 714, and then the ladder locking lever 723 is engaged in the ladder locking groove 714 under the action of gravity, so that the faulty ladder locking device 7 maintains the ladder locking action.

[0030] Furthermore, the ladder locking groove 714 is arranged vertically, so that the ladder locking lever 723 is not easy to exit after entering the ladder locking groove 714, which can prevent mis-locking; the ladder unlocking groove 713 is arranged obliquely, the bottom height of the ladder unlocking groove 713 is lower than the bottom height of the ladder locking groove 714, and the upper part is inclined toward the side close to the ladder locking groove 714. This structure makes it difficult for the ladder locking lever 723 to exit upward after entering the ladder locking groove 714 when the malfunctioning ladder locking device 7 does not lock the ladder, which can prevent mis-locking; the ladder unlocking groove 713 and the ladder locking groove 714 are connected by a sliding track groove 715, and the ladder locking lever 723 can slide along the sliding track groove 715, and the sliding track groove 715 is arc-shaped The elongated hole is formed in the shape of a long hole, and one end of the sliding track groove 715 connected to the ladder locking groove 714 is higher than the end of the sliding track groove 715 connected to the ladder releasing groove 713, so that the ladder locking lever 723 can be more easily withdrawn from the ladder locking groove 714, and it is also convenient for the ladder locking lever 723 to enter the ladder locking groove 714 along the arc during the movement of the ladder locking shaft 72 toward the faulty ladder locking plate 500; when the ladder locking driving module 74 drives the ladder locking shaft 72 to move toward the faulty ladder locking plate 500, the ladder locking lever 723 moves upward along the ladder releasing groove 713, then enters the sliding track groove 715, and then swings upward and then downward along the sliding track groove 715 to enter the ladder locking groove 714, thereby realizing the entire ladder locking action. The above structure uses the ladder release groove 713 and the sliding track groove 715 to guide the ladder lock lever 723 in turn, so that the ladder lock lever 723 can enter the ladder lock groove 714 and use the vertically arranged ladder lock groove 714 to achieve the anti-misopening function, thereby improving the stability of the ladder lock.

[0031] As a preferred embodiment, the elevator lock drive module 74 adopts an electric push rod, the telescopic end of the electric push rod corresponds to the elevator lock sensing rod 722, the telescopic end of the electric push rod can be movably contacted or separated from the elevator lock sensing rod 722, and there is no fixed connection between the telescopic end of the electric push rod and the elevator lock sensing rod 722; under normal conditions (that is, when the elevator lock device 7 does not need to automatically lock the elevator), the telescopic end of the electric push rod remains in a retracted state, and when the automatic elevator lock action needs to be performed, the telescopic end of the electric push rod extends and pushes the elevator lock sensing rod 722, so that the elevator lock plug 721 moves toward the fault elevator lock plate 500 until the elevator lock plug 721 is inserted into the fault elevator lock hole, completing the automatic elevator lock work; after completing the automatic elevator lock work, the telescopic end of the electric push rod automatically resets away from the elevator lock sensing rod 722, realizing the separation of the telescopic end of the electric push rod from the elevator lock sensing rod 722, so that the maintenance staff can manually unlock the position of the elevator car 300. Since the telescopic end of the electric push rod is separately arranged from the elevator locking sensing rod 722, and the telescopic end of the elevator push rod remains in a retracted state under normal circumstances, that is, the elevator locking plug shaft 72 and the elevator locking drive module 74 are relatively independent, even if the electric push rod has an abnormal failure and cannot automatically lock the elevator, the maintenance staff can manually operate the elevator locking plug shaft 72 to perform manual elevator locking after entering the shaft / derrick 100, thereby effectively improving the safety of the elevator maintenance process.

[0032] The above structure can automatically reset away from the ladder locking rod 721 after achieving automatic ladder locking, so that the electric push rod can only drive the ladder locking plug shaft 72 to move in the direction of the faulty ladder locking plate 500 to achieve automatic ladder locking, and cannot drive the ladder locking plug shaft 72 to reset to achieve automatic unlocking of the elevator car 300 position, so that the ladder locking device 7 can only be manually operated to release the ladder locking action, which can prevent the maintenance staff from mistakenly starting the electric push rod to unlock during the maintenance process and causing the wrong locking problem, effectively improving safety. In addition, when the telescopic end of the elevator push rod pushes the ladder lock sensing rod 722 to move, so that the ladder lock lever 723 moves along the ladder release groove 713 and the sliding track groove 715 into the ladder lock groove 714, the ladder lock shaft 72 will be driven to rotate by the ladder lock lever 723 during this process. At this time, the telescopic end of the elevator push rod is prone to rotational friction with the ladder lock sensing rod 722, thereby causing the ladder lock shaft 72 to be unable to smoothly rotate and move axially. In order to solve this technical problem, the ladder lock lever 721 is provided with a contact ball 75 at one end facing the ladder lock drive module 74, and the telescopic end of the electric push rod includes a mating seat 741 that movably cooperates with the contact ball 75. The mating seat 741 is made of nylon. The contact ball 75 is used to contact the mating seat 741, which can effectively reduce friction and improve the smoothness of the elevator push rod driving the ladder lock shaft 72 to move axially.

[0033] As a preferred embodiment, the ladder lock seat 71 is provided with a blocking device 8 for preventing the ladder lock lever 723 from disengaging from the ladder lock groove 714. The blocking device 8 can achieve the purpose of preventing mis-locking and ensure the stability of the ladder lock device 7 after locking the ladder. The blocking device 8 includes a blocking drive spring 81, a fixed shell 82 fixed on the main wall of the ladder lock, and a telescopic limit block 83 for blocking the ladder lock lever 723. The fixed shell 82 is provided with a blocking telescopic groove 821, one end of which is a telescopic entrance and exit. The blocking drive spring 81 is arranged in the blocking telescopic groove 821 and one end is in contact with the groove surface of the blocking telescopic groove 821; the telescopic limit block 83 is slidably guided from the telescopic entrance and exit position to fit in the blocking telescopic groove 821 and to contact the blocking drive spring. 81, one end of the telescopic limit block 83 of the blocking device 8 is movably blocked at the entrance and exit position of the ladder locking groove 714; the other end of the telescopic limit block 83 is provided with a compression inclined surface 831, and the compression inclined surface 831 is inclined relative to the telescopic direction of the telescopic limit block 83, and the compression inclined surface 831 is arranged away from one end of the blocking drive spring 81 and close to the entrance and exit of the ladder locking groove 714, and the compression inclined surface 831 is arranged close to one end of the blocking drive spring 81 and away from the entrance and exit of the ladder locking groove 714.

[0034] When the locking cam 723 is in the process of sliding toward the ladder unlocking groove 713, the locking cam 723 slides over the compression inclined surface 831 on the telescopic limit block 83, so that the ladder locking cam 723 presses the telescopic limit block 83 to retract into the blocking telescopic groove 821. At this time, the blocking drive spring 81 is in a compressed state; after the ladder locking cam 723 continues to move toward the ladder unlocking groove 713 and leaves the telescopic limit block 83, the blocking drive spring 81 expands and pushes the telescopic limit block 83, so that the telescopic limit block 83 is extended to the inlet and outlet position away from the blocking drive spring 81, thereby achieving the purpose of preventing misinterpretation locking; the blocking device 8 of this structure is simple and reasonable in structure. The blocking device 8 can directly realize the automatic anti-misinterpretation locking function when the ladder locking cam 723 slides from the sliding track groove 715 to the ladder unlocking groove 713, which is simple and convenient, and effectively saves the control cost of the blocking device 8.

[0035] Furthermore, a limiting oblong hole 822 is provided on the fixed shell 82, and the length direction of the limiting oblong hole 822 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 engaged in the limiting oblong hole 822. The limiting rod 84 cooperates with the limiting oblong hole 822 to limit the telescopic stroke of the telescopic limiting block 83, thereby preventing the telescopic limiting block 83 from escaping from the blocking telescopic groove 821; in addition, the end of the limiting rod 84 extending out of the fixed shell 82 is an operating lever. When the maintenance staff pulls the operating lever, the telescopic limiting block 83 can be retracted into the unlocking telescopic groove to release the restriction of the ladder locking lever 723, so that the maintenance staff can manually unlock the elevator position.

[0036] As a preferred embodiment, although when the ladder lock lever 723 is located in the ladder release groove 713, the ladder lock shaft 72 and the ladder lock lever 723 can be stably fitted in the ladder release groove 713 under the action of gravity, and it is not easy to move toward the ladder lock groove 714, but in order to further ensure the normal operation of the elevator, the ladder lock seat 71 is also provided with a resistance device 9 for preventing the ladder lock lever 723 from disengaging from the ladder release groove 713 when the ladder is not needed to be locked. The resistance device 9 can provide a certain resistance under the action of the blocking drive spring 81, thereby reducing the probability of the ladder lock lever 723 moving toward the ladder lock groove 714 due to vibration during the operation of the elevator, thereby achieving the purpose of preventing accidental locking and ensuring the normal operation of the elevator.

[0037] The resistance device 9 used in this embodiment has the same structural principle as the blocking device 8, and one end of the telescopic limit block 83 of the resistance device 9 is movably blocked at the entrance and exit position of the ladder unlocking groove 713; when the ladder locking lever 723 is unlocked due to vibration, under the high thrust of the electric push rod and the push of the maintenance staff, the ladder locking lever 723 can sequentially compress the telescopic limit block 83 of the resistance device 9 and the telescopic limit block 83 of the blocking device 8 into the corresponding blocking telescopic groove, so that the ladder locking lever 723 can enter the ladder locking groove 714 to achieve the purpose of locking the ladder.

[0038] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means belongs to the protection scope of the present invention.

Claims

1. A method for judging door lock failure in a villa elevator, characterized by: The following steps are involved: Step 1: A door lock fault judgment module (1) is provided in each floor door (200) for monitoring the state of the elevator door lock to judge whether the floor door (200) corresponding to the elevator door lock is faulty. If the floor door (200) is faulty, the floor station where the faulty floor door (200) is located is judged to be a faulty floor station, and a floor door fault signal is sent to the elevator control cabinet (2); Step 2: After receiving the floor door fault signal, the elevator control cabinet (2) controls the elevator car (300) to run to other normal floor stations 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 landing according to the monitoring result of the door lock fault judgment module; If the faulty floor station is not the lowest floor station, the elevator control cabinet (2) controls the elevator car (300) to move toward the faulty floor station until the elevator car (300) stops below the faulty floor station, at which time the top of the elevator car (300) is close to or flush with the ground of the faulty floor station.

2. A method for judging door lock failure in a villa elevator according to claim 1, characterized in that: In step 2, after receiving the floor door (200) alarm signal, the elevator control cabinet (2) uses the wireless communication module (22) to send the floor door (200) fault alarm information to an external terminal, wherein the external terminal includes a property monitoring center (3) located in a property monitoring room and / or a remote monitoring center (4) located in the elevator manufacturer.

3. A method for judging door lock failure in a villa elevator according to claim 1, characterized in that: In step 2, the elevator control cabinet (2) further controls the second voice alarm module (23) to remind passengers in the elevator car (300) that the landing door (200) is faulty.

4. A method for judging door lock failure in a villa elevator according to claim 1, characterized in that: The remote monitoring center (4) is network-connected to an owner-side APP (5) for receiving an alarm signal from the owner and a maintenance-side APP (6) for directly sending an alarm signal to a maintenance worker. When the landing door (200) of the villa elevator fails, the remote monitoring center (4) synchronously sends the alarm signal to the owner-side APP (5) and the maintenance-side APP (6).

5. A method for judging door lock failure in a villa elevator according to claim 1, characterized in that: In step 3, a plurality of first sensing modules (24) corresponding one to each landing are provided on the shaft / derrick (100), and a second sensing module (301) cooperating with the first sensing module (24) and positioned on the elevator car (300).

6. A method for judging door lock failure in a villa elevator according to claim 1, characterized in that: The method further comprises step 4, wherein 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, thereby locking the elevator car (300) in the shaft / well frame (100) so that the elevator car (300) cannot move.

7. A method for judging door lock failure in a villa elevator according to claim 6, characterized in that: A plurality of faulty elevator locking plates (500) corresponding to each landing are arranged in a shaft / derrick (100); the elevator locking device (7) comprises an elevator locking seat (71) mounted on an elevator car (300), an elevator locking plug shaft (72) movably arranged on the elevator locking seat (71), a safety switch (73) mounted on the elevator locking seat (71), and an elevator locking drive module (74) for driving the elevator locking plug shaft (72) to be inserted into the faulty elevator locking plate (500) corresponding to the faulty landing to achieve elevator locking when a landing door (200) fails; a faulty lock hole (501) is arranged on the faulty elevator locking plate (500); one end of the elevator locking plug shaft (72) is a elevator locking plug rod (721) for being inserted into the faulty lock hole (501) to achieve elevator locking, and the other end is a elevator locking sensing rod (722) for contacting the trigger end of the safety switch (73) after the elevator locking plug rod (721) is inserted into the faulty lock hole (501).

8. A method for judging door lock failure in a villa elevator according to claim 7, characterized in that: The two ladder lock side walls of the ladder lock seat (71) are respectively provided with a first guide hole (711) and a second guide hole (712); the ladder lock plug rod (721) is guided through the first guide hole (711), and the ladder lock sensing rod (722) is guided through the second guide hole (712); the ladder lock sensing rod (722) is provided with a ladder lock lever (723) located between the two ladder lock side walls; the ladder lock main wall is provided with a ladder release groove (713) and a ladder lock groove (714); the ladder release groove (713) and the ladder lock groove (714) are connected by a sliding track groove (715).

9. A method for judging door lock failure in a villa elevator according to claim 8, characterized in that: The ladder lock seat (71) is provided with a blocking device (8) for preventing the ladder lock lever (723) from escaping from the ladder lock groove (714).

10. A method for judging door lock failure in a villa elevator according to claim 8, characterized in that: The ladder locking seat (71) is also provided with a resistance device (9) for preventing the ladder locking lever (723) from being separated from the ladder releasing groove (713) when the ladder is not needed to be locked.

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