Self-calibrating elevator door lock contact device

Abstract

The application discloses a self-calibration type elevator door lock contact device, which comprises a static base plate, a dynamic base plate, contacts, adjusting assemblies and a controller. The static base plate and the dynamic base plate are oppositely arranged and respectively installed with contacts. Two contacts can be moved laterally or longitudinally by adjusting assemblies respectively. The controller is electrically connected with two adjusting assemblies and is provided with a contact detection circuit which can monitor the contact state of two contacts. When the controller monitors that the contact state of two contacts is abnormal through the contact detection circuit, the two contacts are automatically driven to move laterally or longitudinally by the adjusting assemblies until they are normally contacted again, so that the self-real-time monitoring and automatic calibration of the door lock are realized, the door lock can be smoothly locked when the landing door and the car door are closed, the delay caused by inaccurate door operation and the cost of manual maintenance and adjustment are reduced, and the safety and reliability of the elevator are improved.

Description

[Technical Field]

[0001] This invention relates to the technical field of elevators, and in particular to the technical field of self-calibrating elevator door lock contact devices. [Background Technology]

[0002] An elevator is a mechanical device that vertically moves between different floors of a building to transport people or goods. Elevator doors typically include a car door (installed on the elevator car that moves through the building's shaft) and several landing doors (installed on each floor of the building at the entrance to the shaft). The elevator door lock contact device is an electrical safety device that detects whether the landing doors and car doors are reliably closed and locked. It has safety contacts connected to the electrical safety circuit, such as the elevator door lock switch and its locking device disclosed in invention patent CN113277406A, the roller-type elevator door lock and its assembly disclosed in utility model patent CN216471689U, and the elevator door lock device disclosed in utility model patent CN203682842U. When the car door or the designated floor door is not closed, the safety contacts separate, the entire door lock circuit is disconnected, and the elevator cannot run; when both the car door and the designated floor door are closed properly, the safety contacts connect, the entire door lock circuit is connected, and the elevator can run safely.

[0003] However, after prolonged use, the safety contacts of the car door and landing doors are prone to positional deviations due to wear or other factors, leading to inaccurate alignment. Therefore, maintenance personnel need to periodically inspect and adjust the installation positions of the safety contacts to ensure the proper functioning of the car door and landing doors. However, this method is not only labor-intensive but also cannot provide timely adjustments to the positions of the safety contacts, necessitating a solution. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a self-calibrating elevator door lock contact device, which can realize autonomous real-time monitoring and automatic calibration of the door lock, ensuring that the door lock can be successfully locked when the landing door and car door are closed.

[0005] To achieve the above objectives, the present invention proposes a self-calibrating elevator door lock contact device, comprising a stationary base plate, a moving base plate, contacts, an adjustment assembly, and a controller. The stationary base plate and the moving base plate are arranged opposite to each other and each is equipped with a contact. The two contacts can be moved laterally or longitudinally relative to each other by the adjustment assembly. The controller is electrically connected to the two sets of adjustment assemblies and is provided with a contact detection circuit that can monitor the contact state of the two contacts.

[0006] Preferably, the system also includes a substrate motor, wherein the moving substrate is driven by the substrate motor to rotate relative to the stationary substrate.

[0007] Preferably, a counterweight is also installed on the moving base plate. The counterweight and the contact points located on the moving base plate are respectively arranged on opposite sides of the moving base plate. The counterweight can be moved laterally or longitudinally on the moving base plate by adjusting the component.

[0008] Preferably, the adjustment assembly includes a slider, a slide bar, a slide bar movable mechanism, and a block movable mechanism. The counterweight and two contacts are respectively mounted on the three slide bars, and the three slide bars are slidably connected to the three sliders. One of the sliders is slidably connected to the stationary slide groove of the stationary base plate. The counterweight and another slider are slidably connected to two movable slide grooves located on the moving base plate. The three sliders are driven by the slide bar movable mechanism to slide vertically. The stationary base plate is driven by the block movable mechanism to slide one slider horizontally along the stationary slide groove. The moving base plate is driven by the block movable mechanism to slide the remaining two sliders horizontally along the movable slide grooves.

[0009] Preferably, the sliding mechanism includes an adjustment component and a positioning component. The adjustment component includes an adjustment motor, a drive roller, and a driven roller. The drive roller and the driven roller are rotatably connected to the slider, and their axial surfaces can contact the upper and lower surfaces of the slider. One end of the drive roller is connected to the output shaft of the adjustment motor. The positioning component consists of clamps respectively disposed on the left and right sides of the slider. The clamps include a base shell, a push plate, a push rod, a piston, a spring, an electromagnet, and a permanent magnet. One end of the push rod is equipped with a push plate, and the other end extends into the interior of the base shell and is connected to the piston. The two ends of the spring are respectively connected to the base shell and the piston. The electromagnet and the permanent magnet are respectively installed in the base shell and the piston. The push plate is positioned facing the left or right side of the slider.

[0010] Preferably, the block movable mechanism includes a movable motor, a lead screw, a lead rod, a slide block, and a slide rail. The movable motor and the slide rail are both fixed on a stationary base plate or a movable base plate. The lead screw is rotatably connected to the movable motor. The lead rod passes through the movable motor and is threadedly connected to the lead screw. The slide block is connected to the lead rod and simultaneously slidably connected to the slide rail. The lead rod or the slide block is connected to the corresponding slider.

[0011] Preferably, the controller also includes a shorting / bridging command transmitter capable of sending door lock shorting / bridging commands and a shorting / bridging circuit for implementing door lock shorting / bridging.

[0012] Preferably, the controller also includes a calibration information receiver that can receive calibration information from two contacts in real time, and a judgment logic module that compares the received calibration information with a standard calibration information table.

[0013] The beneficial effects of this invention are:

[0014] 1) By installing contacts on the relatively set static and dynamic base plates, the present invention can automatically drive the two contacts to move laterally or longitudinally until they re-establish normal contact when the controller detects an abnormality in the contact state of the two contacts through the contact detection circuit (i.e., when there is a positional deviation between the two contacts). This achieves autonomous real-time monitoring and automatic calibration of the door lock, ensuring that the door lock can lock smoothly when the landing door and car door are closed. This reduces delays caused by inaccurate door operation and the cost of manual maintenance and adjustment, while improving the safety and reliability of the elevator.

[0015] 2) By adding a baseboard motor to drive the moving baseboard to rotate relative to the stationary baseboard, the range of relative adjustment of the two contacts can be further widened, ensuring that the two contacts can be smoothly aligned.

[0016] 3) By adding a weight on the moving base plate and using an adjustment component to allow the weight to move laterally or longitudinally on the moving base plate, the position adjustment of the weight can be used in conjunction with the movable contact mounted on the moving base plate to keep the center of gravity of the moving base plate in the desired position.

[0017] 4) The slide body movable mechanism is constructed by using an adjustment component (including an adjustment motor, a drive roller and a driven roller) and a positioning component consisting of a pair of clamps (including a base shell, a push plate, a push rod, a piston, a spring, an electromagnet and a permanent magnet). It can not only use the rotation of the drive roller and the driven roller to provide frictional driving force for vertical movement of the slide on the upper and lower sides of the slide, but also enable the clamps set on the left and right sides of the slide to release or clamp the slide together under the dual action of magnetic force and elastic force. The overall structure is compact and can reduce the size of the device.

[0018] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0019] Figure 1 This is a front view of the self-calibrating elevator door lock contact device of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the self-calibrating elevator door lock contact device of the present invention after removing the block movable mechanism and the base plate motor.

[0021] Figure 3 This is an assembly diagram of the slider, slide bar, and bar movable mechanism of the self-calibrating elevator door lock contact device of the present invention;

[0022] Figure 4 yes Figure 3 An enlarged view of point A;

[0023] Figure 5 This is a front view of the block movable mechanism of the self-calibrating elevator door lock contact device of the present invention.

[0024] In the diagram: 1-Static substrate, 11-Static slide groove, 2-Moving substrate, 21-Moving slide groove, 3-Slider, 4-Slide bar, 5-Contact point, 6-Strip movable mechanism, 61-Adjusting component, 611-Adjusting motor, 612-Active roller, 613-Passive roller, 62-Positioning component, 621-Base shell, 622-Push plate, 623-Push rod, 624-Piston, 625-Spring, 626-Electromagnet, 627-Permanent magnet, 7-Block movable mechanism, 71-Movable motor, 72-Lead screw, 73-Slide seat, 74-Slide rail, 8-Substrate motor, 9-Counterweight.

Detailed Implementation Methods

[0025] See Figures 1 to 5 The present invention relates to a self-calibrating elevator door lock contact device, comprising a stationary base plate 1, a moving base plate 2, contacts 5, an adjustment assembly, and a controller. The stationary base plate 1 and the moving base plate 2 are arranged opposite to each other and each is equipped with a contact 5. The two contacts 5 can be moved laterally or longitudinally relative to each other by means of the adjustment assembly. The controller is electrically connected to the two sets of adjustment assemblies and is provided with a contact detection circuit (i.e., a contact detection system, used to detect the position and state of the contacts 5 and provide real-time elevator door lock contact information, including any deviations or abnormalities) that can monitor the contact state of the two contacts 5.

[0026] It also includes a substrate motor 8, wherein the moving substrate 2 is driven by the substrate motor 8 to rotate relative to the stationary substrate 1.

[0027] A counterweight 9 is also installed on the moving base plate 2. The counterweight 9 and the contact point 5 located on the moving base plate 2 are respectively arranged on opposite sides of the moving base plate 2. The counterweight 9 can be moved laterally or longitudinally on the moving base plate 2 by adjusting the component.

[0028] The adjustment assembly includes a slider 3, a slider 4, a slider movable mechanism 6, and a block movable mechanism 7. The counterweight 9 and two contact points 5 are respectively mounted on the three sliders 4. The three sliders 4 are slidably connected to the three sliders 3. One of the sliders 3 is slidably connected to the stationary slide groove 11 of the stationary base plate 1. The counterweight 9 and another slider 3 are respectively slidably connected to the two movable slide grooves 21 located on the moving base plate 2. The three sliders 3 are driven by the slider movable mechanism 6 to slide vertically on their respective sliders 4. The stationary base plate 1 is driven by the block movable mechanism 7 to slide one of the sliders 3 horizontally along the stationary slide groove 11. The moving base plate 2 is driven by the block movable mechanism 7 to slide the remaining two sliders 3 horizontally along the movable slide grooves 21.

[0029] The sliding mechanism 6 includes an adjusting component 61 and a positioning component 62. The adjusting component 61 includes an adjusting motor 611, a driving roller 612, and a driven roller 613. The driving roller 612 and the driven roller 613 are rotatably connected to the slider 3, and their axial surfaces can contact the upper and lower surfaces of the slider 4, respectively. One end of the driving roller 612 is connected to the output shaft of the adjusting motor 611. The positioning component 62 consists of clamps respectively disposed on the left and right sides of the slider 4. The clamps include... The base shell 621, push plate 622, push rod 623, piston 624, spring 625, electromagnet 626 and permanent magnet 627 are provided. One end of the push rod 623 is equipped with push plate 622, and the other end is connected to piston 624 after extending into the interior of base shell 621. The two ends of the spring 625 are respectively connected to base shell 621 and piston 624. Electromagnet 626 and permanent magnet 627 are respectively installed in base shell 621 and piston 624. Push plate 622 is arranged facing the left or right side of slider 4.

[0030] The block movable mechanism 7 includes a movable motor 71, a lead screw 72, a slide block 73, and a slide rail 74. The movable motor 71 and the slide rail 74 are both fixed on the stationary base plate 1 or the movable base plate 2. The lead screw 72 is rotatably connected to the movable motor 71. The lead screw 72 passes through the movable motor 71 and is threadedly connected to the lead screw 72. The slide block 73 is connected to the lead screw 72 and simultaneously slidably connected to the slide rail 74. The lead screw 72 or the slide block 73 is connected to the corresponding slider 3.

[0031] The controller also includes a shorting / bridging command transmitter that can send shorting / bridging commands for the door lock, and a shorting / bridging circuit that implements shorting / bridging of the door lock.

[0032] The controller also includes a calibration information receiver capable of receiving calibration information from the two contacts 5 in real time, and a judgment logic module that compares the received calibration information with a standard calibration information table. The calibration information receiver collects data generated during the calibration process for subsequent assessment of the accuracy of the calibration results; the standard calibration information table stores pre-acquired standard calibration information as a comparison reference for later determination of whether the two contacts 5 are functioning correctly; the judgment logic module, based on contact detection information and feedback information, automatically adjusts its algorithm to achieve precise calibration of the two contacts 5, thereby improving calibration efficiency and accuracy.

[0033] In addition, the controller can be equipped with a feedback control system to monitor feedback information during the calibration process (including the adjustment of elevator door lock contacts and any abnormalities), providing real-time feedback to maintenance personnel so that they can manually adjust the calibration controller's instructions, ensuring the calibration process proceeds smoothly and improving the stability and reliability of the device.

[0034] The working process of this invention:

[0035] During operation, the controller can monitor the contact status of the two contacts 5 in real time through the contact detection circuit. When the contact detection circuit detects that the two contacts 5 are not properly connected, the controller sends a door lock shorting / bridging command through the shorting / bridging command transmitter, thereby triggering the corresponding adjustment operation through the shorting / bridging circuit. On the other hand, it sends a calibration command through the calibration command transmitter to enter the calibration mode.

[0036] During adjustment, the base plate motor 8 drives the moving base plate 2 to rotate, thereby causing the contact 5 mounted on the moving base plate 2 to rotate relative to the contact 5 mounted on the stationary base plate 1. Furthermore, for the adjustment assembly, the three bar-type movable mechanisms 6 can drive their corresponding sliders to move vertically, and the three block-type movable mechanisms 7 can drive their corresponding sliders to move horizontally. This allows for adjustment of the horizontal and vertical positions of the two contact points 5, and also enables the moving base plate 2 to maintain better balance by adjusting the horizontal and vertical positions of the counterweight 9. Specifically, when the bar-type movable mechanism 6 needs to drive the slider 4 to move vertically, the electromagnet 626 is first energized to attract the permanent magnet 627, which in turn drives the push plate 622 away from the slider 4 via the piston 624 and simultaneously compresses the spring 625. Then, the adjustment motor 611 is activated to drive the active roller 612 to rotate, so that the active roller 612 and the passive roller 613 move vertically during rotation due to friction. When the slider 4 moves vertically into position, the adjusting motor 611 stops driving, and the electromagnet 626 is de-energized. This allows the spring force of the spring 625 to push the push plate 622 against the slider 4, keeping the slider 4 in its original position. Alternatively, the electromagnet 626 and the permanent magnet 627, which repel each other magnetically, can be used to increase the pushing force of the push plate 622 on the slider 4. For the block-moving mechanism 7, the movable motor 71 can drive the lead screw 72 and the slide block 73 to move left and right by reversing the lead screw nut, thus achieving the lateral movement of the slider 4.

[0037] During calibration, the calibration information receiver located in the controller can receive the calibration information of the two contacts 5 in real time, while the judgment logic module can compare the pre-acquired standard calibration information (standard calibration information table) with the actual calibration information to determine whether the two contacts 5 are normal and output the corresponding results.

[0038] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A self-calibrating elevator door lock contact device, characterized in that: It includes a stationary substrate (1), a moving substrate (2), contacts (5), adjustment components and a controller. The stationary substrate (1) and the moving substrate (2) are arranged opposite to each other and each is equipped with a contact (5). The two contacts (5) can be moved laterally or longitudinally relative to each other through the adjustment components. The controller is electrically connected to the two sets of adjustment components and is provided with a contact detection circuit that can monitor the contact state of the two contacts (5). The contact detection circuit monitors the contact status of the two contacts (5) in real time. When the contact detection circuit detects that the two contacts (5) are not properly connected, it sends a calibration command through the calibration command transmitter to enter the calibration mode. The controller is also equipped with a calibration information receiver that can receive the calibration information of the two contacts (5) in real time and a judgment logic module that compares the received calibration information with the standard calibration information table. The judgment logic module achieves accurate calibration of the two contacts (5) based on the contact detection information and feedback information through an automatic adjustment algorithm. The adjustment assembly includes a slider (3), a slider (4), a slider body movable mechanism (6), and a block movable mechanism (7). A counterweight (9) and two contacts (5) are respectively installed on the three sliders (4). The three sliders (4) are slidably connected to the three sliders (3). One of the sliders (3) is slidably connected to the static slide groove (11) of the static base plate (1). The counterweight (9) and another slider (3) are slidably connected to the two movable slide grooves (21) located on the moving base plate (2). The three sliders (3) are driven by the slider body movable mechanism (6) to slide vertically. The static base plate (1) is driven by the block movable mechanism (7) to slide horizontally along the static slide groove (11). The moving base plate (2) is driven by the block movable mechanism (7) to slide horizontally along the movable slide groove (21) of the remaining two sliders (3).

2. The self-calibrating elevator door lock contact device as described in claim 1, characterized in that: It also includes a substrate motor (8), wherein the moving substrate (2) is driven by the substrate motor (8) to rotate relative to the stationary substrate (1).

3. The self-calibrating elevator door lock contact device as described in claim 2, characterized in that: A counterweight (9) is also installed on the moving base plate (2). The counterweight (9) and the contact point (5) located on the moving base plate (2) are respectively arranged on opposite sides of the moving base plate (2). The counterweight (9) can be moved laterally or longitudinally on the moving base plate (2) by adjusting the component.

4. The self-calibrating elevator door lock contact device as described in claim 1, characterized in that: The movable strip mechanism (6) includes an adjusting component (61) and a positioning component (62). The adjusting component (61) includes an adjusting motor (611), a driving roller (612), and a driven roller (613). The driving roller (612) and the driven roller (613) are rotatably connected to the slider (3), and their axial surfaces can contact the upper and lower surfaces of the slide bar (4). One end of the driving roller (612) is connected to the output shaft of the adjusting motor (611). The positioning component (62) is composed of clamps respectively arranged on the left and right sides of the slide bar (4). The clamps include a base shell (62). 1) Push plate (622), push rod (623), piston (624), spring (625), electromagnet (626) and permanent magnet (627). One end of the push rod (623) is equipped with push plate (622) and the other end is connected to piston (624) after extending into the base shell (621). The two ends of the spring (625) are connected to the base shell (621) and piston (624) respectively. The electromagnet (626) and permanent magnet (627) are installed in the base shell (621) and piston (624) respectively. The push plate (622) is set to the left or right of the slider (4).

5. The self-calibrating elevator door lock contact device as described in claim 1, characterized in that: The block movable mechanism (7) includes a movable motor (71), a lead screw, a lead screw (72), a slide block (73), and a slide rail (74). The movable motor (71) and the slide rail (74) are both fixed on the stationary base plate (1) or the movable base plate (2). The lead screw is rotatably connected to the movable motor (71). The lead screw (72) passes through the movable motor (71) and is threadedly connected to the lead screw. The slide block (73) is connected to the lead screw (72) and simultaneously slidably connected to the slide rail (74). The lead screw (72) or the slide block (73) is connected to the corresponding slider (3).

6. The self-calibrating elevator door lock contact device as described in any one of claims 1 to 5, characterized in that: The controller also includes a shorting / bridging command transmitter that can send shorting / bridging commands for the door lock, and a shorting / bridging circuit that implements shorting / bridging of the door lock.

7. The self-calibrating elevator door lock contact device as described in any one of claims 1 to 5, characterized in that: The controller is also equipped with a calibration information receiver that can receive calibration information from two contacts (5) in real time, and a judgment logic module that compares the received calibration information with the standard calibration information table.

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