Elevator landing door lock state abnormity self-detection alarm device

Abstract

The invention provides an elevator landing door lock state abnormity self-detection alarm device, which comprises each floor calling ladder system and a cable electrically connected with a subsystem, each floor calling ladder system comprises an outbound plate of an elevator and a landing door lock corresponding to a hall, each outbound plate is electrically connected with an auxiliary contact, and the auxiliary contact is a normally closed switch. According to the elevator landing door control system, the normally-closed auxiliary contacts are additionally arranged on the landing door of each floor, and the standby input BY of the outbound board is connected, so that on the premise that no extra hardware is added, only the auxiliary contacts need to be installed on the landing door, and the landing door can be connected with the elevator landing door through the standby input BY. Therefore, the fault landing door can be quickly distinguished and the fault information can be displayed on the nixie tube of the mainboard. When the lifting height of the elevator is high or the landing doors (or safety doors) are many, the hall of any landing door is not completely closed or the door is blocked to close the door due to the action of external wind power, field maintenance personnel can quickly judge through information of the main board, and troubleshooting layer by layer is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a self-detection and alarm device for abnormal state of elevator door locks. Background Art

[0002] An elevator is a permanent transport device that serves several specific floors in a building, with its car running on at least two rows of rigid tracks perpendicular to the horizontal plane or with an inclination angle of less than 15° to the plumb line. Elevators are widely used in daily life and work. In the existing technology, elevators are installed in residences, office buildings, commercial buildings and hotels. In recent years, elevators have also been installed inside and outside special high-rise buildings. The opening, closing and locking of elevator floor doors are the primary conditions for safe use of elevators. They can easily cause people and objects to rub against the shaft and create danger. They are also an important safety protection component of the elevator. The floor door is the first elevator component that people see or touch when using the elevator. According to incomplete statistics, about 70% of personal injury accidents in elevators are caused by the failure or improper use of the floor door.

[0003] Therefore, in order to ensure the safety of passengers and improve the maintenance efficiency when the floor door locking is abnormal, a rapid identification and judgment system can be added to improve the timeliness of elevator fault recovery. This is especially true in situations where the elevator has a high lifting height, many floor doors, and an unfavorable operating environment, which can better demonstrate the level of rapid troubleshooting.

[0004] Therefore, it is necessary to provide an elevator floor door lock state abnormality self-detection alarm device to improve the timeliness of elevator fault recovery. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an elevator floor door lock abnormality self-detection alarm device, which can realize automatic detection and alarm of floor door component failure when the existing elevator is in use, thereby facilitating the rapid handling of safety hazards and improving the safety of elevator use.

[0006] The present invention provides a self-detection alarm device for abnormal status of elevator floor door locks, which includes elevator call subsystems for each floor and cables for electrically connecting the subsystems. Each elevator call subsystem includes an elevator hall call plate and a floor door lock corresponding to the lobby. Each hall call plate is electrically connected to an auxiliary contact, and the auxiliary contact is a normally closed switch. At the same time, each auxiliary contact corresponding to the outer guard plate is installed on the corresponding elevator lobby.

[0007] Preferably, the hall call board is provided with an input point BY1, which serves as a hall signal input point. Each spare input point BY1 contains four pins, namely BY1-1, BY1-2, BY1-3 and BY1-4, wherein the hall signal input is connected between pins BY1-3 and BY1-4.

[0008] Preferably, the device further comprises a display device for being incorporated into the elevator system and displaying fault information.

[0009] Preferably, the display device is a digital tube electrically connected to the elevator mainboard.

[0010] Preferably, the outside call board includes 1F-nF outside call boards arranged layer by layer, and all outside call boards are electrically connected by cables.

[0011] Preferably, the floor door locks include 1F-nF floor door locks corresponding to the hall call plate, and the floor door locks are all electrically connected to the hall call plate. At the same time, all floor door locks are opened and closed by corresponding auxiliary contacts.

[0012] Compared with related technologies, the elevator floor door lock state abnormality self-detection alarm device provided by the present invention has the following beneficial effects:

[0013] 1. The present invention adds a normally closed auxiliary contact to the landing door on each floor and connects it to the standby input BY1 port of the hall call board. Without adding additional hardware, it is only necessary to install the auxiliary contact on the landing door and connect it to the hall call board to quickly identify the faulty landing door and display the fault information on the digital tube of the main board. When the elevator is at a high lifting height or there are many landing doors (or safety doors), if the landing door of any floor is not completely closed or the door is blocked by external wind and fails to close, on-site maintenance personnel can quickly identify it based on the main board information, without having to check each floor, thus reducing the workload.

[0014] 2. The device of the present invention has two working modes, one of which is trigger mode, that is, when the pins BY1-3 and BY1-4 of the outer guard plate of the hall door on a certain floor are disconnected (indicating that the hall door is opened), the control system checks whether the floor of the hall door is consistent with the floor where the current car is located. If they are not consistent, a fault is reported; the other is polling mode. Based on the trigger mode, it uses the control system to continuously query the status of the hall door on each floor. If the communication of the hall call board on a certain floor is disconnected, a fault will also be reported. One of the modes can be selected in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the interface structure of the outbound call board of the present invention. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0020] Example

[0021] An elevator door lock state abnormality self-detection alarm device, reference Figure 1 As shown, the device includes 1F-nF hall call panels. The hall call panels on each floor communicate through the hoistway call cable. In this technical solution, the spare input point BY1 on each hall call panel (the original serial fire input point, the serial fire input point is changed to the down call input of the first floor hall call panel) needs to be used as the hall door status input point. Each spare input point BY1 has four pins, namely BY1-1, BY1-2, BY1-3 and BY1-4. The hall signal input is connected between pins BY1-3 and BY1-4 (for specific wiring, refer to Figure 2 When the hall door corresponding to the hall call board is closed, the pins BY1-3 and BY1-4 of the input point BY1 of the hall call board are connected. On the contrary, when the corresponding hall door is open, the pins BY1-3 and BY1-4 are disconnected. The above method is used to determine whether the hall door corresponding to the hall call board is open or closed.

[0022] The interface of the BY1-1, BY1-2, and BY1-3 pins of the BY1 input point of the call board are all OC gates with a current limiting resistor of 120Ω. The interface of the BY1-4 pin is an optocoupler with a rated load of DC24V, 8mA.

[0023] In the specific implementation process, refer to Figure 1 As shown, it also includes floor door locks corresponding to 1F-nF hall call boards. All floor door locks are electrically connected to the control module in the control cabinet through cables, and are also electrically connected to the hall call board;

[0024] In addition, Figure 1 As shown, a normally closed auxiliary contact is installed on each landing door, and the auxiliary contact is connected between pins BY1-3 and BY1-4 of the standby input point BY1 of the corresponding hall call panel through a wire. The auxiliary contact is used to determine whether the landing door is open or closed, and the landing door opening and closing signal is input to the standby input point BY1 to disconnect or connect pins BY1-3 and BY1-4 accordingly.

[0025] This technical solution has two working modes, one of which is trigger mode, that is, when the pins BY1-3 and BY1-4 of the outer guard plate of the landing door on a certain floor are disconnected (indicating that the landing door is opened), the control system checks whether the floor of the landing door is consistent with the floor where the current car is located. If they are not consistent, a fault is reported;

[0026] Another type is the polling mode. Based on the trigger mode, it uses the control system to continuously query the status of the hall doors on each floor. If the communication with the hall call board on a certain floor is disconnected, a fault will be reported. You can choose one of the modes according to actual usage.

[0027] In case of a fault, the digital tube on the main board will alternately display "current floor - fault code - current floor - door open floor". For example, the main board LED will display "F-06" - "E-63" - "F-06" - "OP02" in sequence, which means the current floor of the elevator is the 6th floor, the fault code is 63, and the floor where the hall door is abnormally opened is the 02nd floor.

[0028] Since the elevator stops running when a fault occurs, it is difficult to go to the machine room for processing in buildings with higher floors. Therefore, the fault recovery mode is "recovery in maintenance mode". Without adding additional hardware, this technical solution only needs to install auxiliary contacts on the hall door and connect it to the outside call board to quickly identify the faulty hall door and display the fault information on the digital tube of the main board; when the elevator has a high lifting height or there are many floor doors (or safety doors), if the hall door of any floor is not completely closed or the door is blocked by external wind and fails to close, the on-site maintenance personnel can quickly identify it through the main board information without having to check each floor, thus reducing the workload.

[0029] In actual use, you can choose either polling or triggering for floor-by-floor detection. The corresponding control mode can be selected as follows: when set to ON, the polling hall door floor-by-floor detection function is enabled; when set to OFF, the hall door detection mode is triggering;

[0030] For example: When set to OFF, the mainboard LED displays "F-03" - "E-63" - "F-03" - "dc03" in sequence;

[0031] It means that the hall door detection mode is trigger type. The current elevator floor is 3rd floor. When the elevator is on the 3rd floor and opens the door, it does not receive the hall door open signal sent by the 3rd floor hall call board. This indicates that there is a problem with the communication of the 3rd floor hall call board. Please check whether the wiring or address setting of the 3rd floor hall call board is correct.

[0032] When set to ON, the mainboard LED displays "F-05" - "E-63" - "F-05" - "dc04" in sequence; this means that the hall door detection mode is polling. The current elevator floor is the 5th floor. If no hall door status signal is received from the 4th floor hall call board within 10 seconds, it is considered that there is a problem with the 4th floor hall call board communication. Please check whether the wiring or address setting of the 4th floor hall call board is correct. If there is no hall call board installed on the 4th floor, the 4th floor can be set to non-stop to facilitate debugging.

[0033] If the elevator door is closed and on standby in the leveling area and the floor door lock is abnormally disconnected, the elevator will stop service and report a fault after the door is opened. If the floor door lock is disconnected while the elevator is running, the elevator will stop immediately. When the door lock circuit is reconnected at this time, the elevator will return to the leveling area and open the door (except for the hoistway safety door and floor door), and the elevator will stop service and report a fault. If the auxiliary door lock circuit of other floors is accidentally disconnected during the door opening process or in the door open state, if the elevator door is closing at this time, the system will stop closing and execute door opening, and then stop operation after the door opening is completed. If the door is just closing, the system must execute door opening (regardless of whether there is a command) and stop operation after the door is opened. If the door is open, the elevator will stop operation immediately.

[0034] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An elevator floor door lock state abnormal self-detection alarm device, including each floor call subsystem and a cable for the electrical connection subsystem, Features: Each floor call subsystem includes the elevator's outside call plate and the floor door lock corresponding to the lobby. Each outside call plate is electrically connected to an auxiliary contact, and the auxiliary contact is a normally closed switch. At the same time, each auxiliary contact corresponding to the outer guard plate is installed on the corresponding elevator lobby.

2. According to claim 1, an abnormal self-detection alarm device for elevator door lock status, It is characterized in that An input point BY1 is provided on the outside call board, and the BY1 serves as a hall signal input point.

3. The elevator floor door lock state abnormal self-detection alarm device according to claim 1, It is characterized in that Also included is a display device for incorporating into the elevator system and presenting fault information.

4. The elevator floor door lock state abnormal self-detection alarm device according to claim 3, It is characterized in that The display device is a digital tube electrically connected to the elevator mainboard.

5. The elevator floor door lock state abnormal self-detection alarm device according to claim 1, It is characterized in that The outside call boards include 1F-nF outside call boards arranged layer by layer, and all the outside call boards are electrically connected through cables.

6. The elevator floor door lock state abnormal self-detection alarm device according to claim 1, It is characterized in that The floor door locks include 1F-nF floor door locks corresponding to the hall call plate, and the floor door locks are all electrically connected to the hall call plate. At the same time, all floor door locks are opened and closed by corresponding auxiliary contacts.

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