Elevator door lock engagement depth detector and elevator system

Abstract

The invention provides an elevator door lock engagement depth detector and an elevator system, which relate to the technical field of elevator safety, and include an angle sensor, an acceleration sensor and a processor; the acceleration sensor is detachably arranged on an electrical contact arm of a door lock seat of an elevator door lock, and collects an acceleration signal when the electrical contact is closed; the angle sensor is detachably arranged on a rotating arm of a door lock hook of the elevator door lock, and measures a first angle between the rotating arm and a horizontal plane in real time, and measures a second angle between the rotating arm and the horizontal plane when receiving the acceleration signal; the processor receives the first angle and the second angle, and obtains the engagement depth between the door lock hook and the door lock seat. When the electrical contact is closed, the engagement depth is obtained by measuring the angle through the detachable sensor, and the door lock engagement depth can be quickly detected without stopping the elevator operation, with high accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of elevator safety, and in particular to an elevator door lock engagement depth detector and an elevator system. Background Art

[0002] With the popularity of elevators and the occurrence of some elevator door accidents, the safety of elevator doors has attracted more and more attention. Elevator doors are the entrances and exits for passengers and goods. The elevator door system not only has the function of opening and closing the door, but also provides protection to prevent people from falling into the shaft and being sheared. The elevator door lock device is to ensure the reliable closure and locking of the elevator door and prevent the floor door and car door from being opened at will. The locking device and the electrical safety device that verifies the door closure are usually collectively referred to as door locks, and their meshing depth affects the safety status of the elevator.

[0003] Existing methods for detecting the engagement depth of door locks include visual inspection, steel ruler or vernier caliper measurement, and feeler gauge measurement. These methods require stopping the normal operation of the elevator and performing the test on the top of the elevator car. They also require a large number of measurement personnel, take a long time to test, and the results of the engagement depth test are greatly affected by the measurement personnel, resulting in low accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide an elevator door lock engagement depth detector and an elevator system. When the electrical contacts are closed, the engagement depth is obtained by measuring the angle through a detachable sensor. There is no need to stop the elevator operation. The door lock engagement depth can be quickly detected with high accuracy.

[0005] In a first aspect, an embodiment of the present invention provides an elevator door lock engagement depth detector, including an angle sensor, an acceleration sensor, and a processor;

[0006] The acceleration sensor is detachably mounted on the electrical contact arm of the door lock seat of the elevator door lock, and is used to collect the acceleration signal when the electrical contact is closed, and send the acceleration signal to the angle sensor;

[0007] The angle sensor is detachably mounted on the rotating arm of the door lock hook of the elevator door lock, and is used to measure in real time a first angle between the rotating arm and a horizontal plane, and upon receiving the acceleration signal, to measure a second angle between the rotating arm and the horizontal plane, and to send the first angle and the second angle to the processor;

[0008] The processor is used to receive the first angle and the second angle, and obtain the engagement depth between the door lock hook and the door lock seat.

[0009] In an optional embodiment, the acceleration sensor is used to collect the acceleration signal of the electrical contact arm when the conductive sheet of the door lock hook and the electrical contact arm of the door lock seat are closed, and send the acceleration signal to the angle sensor.

[0010] In an optional embodiment, the door lock seat includes a hook stop for engaging with the door lock hook, and the detector also includes a standard block that is detachably disposed on the door lock seat and is used to calibrate the length of the rotating arm of the door lock hook.

[0011] In an optional embodiment, the standard block includes a mounting seat, an adjustment rod and a calibration block, the mounting seat is detachably arranged on the door lock seat, and the calibration block is connected to the mounting seat through the adjustment rod;

[0012] The adjusting rod is used to adjust the height of the calibration block so that the calibration block, the door lock hook and the hook stop are in contact with each other.

[0013] In an optional embodiment, the angle sensor is further used to send a measured third angle signal to the processor when the calibration block, the door lock hook and the hook stop are in abutment with each other.

[0014] In an optional embodiment, the processor receives the third angle signal, calibrates and records the length of the rotating arm.

[0015] In an optional embodiment, the processor is further used to receive the second angle and the third angle, and obtain the engagement depth of the door lock hook and the door lock seat.

[0016] In an optional embodiment, the detector further includes a suction component, which is respectively provided on the acceleration sensor and the angle sensor, and is used to detachably suction the acceleration sensor and the angle sensor to the electrical contact arm and the rotating arm, respectively.

[0017] In an optional embodiment, the suction and assembly includes a fixing component and a magnetic component;

[0018] The fixing components are respectively connected to the acceleration sensor and the angle sensor, and are used to detachably mount the magnetic components on the acceleration sensor and the angle sensor.

[0019] In a second aspect, an embodiment of the present invention further provides an elevator system, comprising the elevator door lock engagement depth detector as described above and an elevator body.

[0020] The embodiment of the present invention provides an elevator door lock engagement depth detector and an elevator system. The critical point of the closure of the door lock electrical safety circuit is determined by detecting the acceleration signal when the electrical contact arm vibrates, and the length of overlap between the door lock hook and the hook stop of the door lock seat at the critical point is measured by using an angle sensor to measure the angle. By using a detachable acceleration sensor and an angle sensor set on the door lock, the door lock engagement depth can be directly detected at the elevator stop without affecting the normal operation of the elevator, and a single detection staff can complete the measurement. The safety of the elevator door lock detection process is improved, the work efficiency is improved, and the accuracy is high, avoiding elevator shutdowns and insufficient measurement accuracy due to observation errors in the detection work.

[0021] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of an elevator door lock engagement depth detector provided by an embodiment of the present invention;

[0025] Figure 2 One of the schematic diagrams of the elevator door lock closing process provided by an embodiment of the present invention;

[0026] Figure 3 A second schematic diagram of the elevator door lock closing process provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a standard block provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a scenario application of a standard block provided by an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of engagement depth provided for an embodiment of the present invention.

[0030] Icons: 100-angle sensor; 200-acceleration sensor; 300-door lock seat; 301-hook stop; 302-electrical contact arm; 400-door lock hook; 401-rotating arm; 402-conductive sheet; 500-door knife; 501-door lock roller; 600-standard block; 601-calibration block; 602-adjustment rod; 603-mounting seat; 604-round groove; 605-abutment block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] At present, elevator floor doors are most prone to forceful leaning, kicking, and prying. If the floor door lock engagement depth is shallow, when the above-mentioned human phenomena occur, it is easy to cause dangerous situations such as abnormal opening of the floor door lock. Therefore, the standard stipulates that at the critical point when the floor door lock electrical safety circuit is closed and the elevator can operate, the engagement depth of the elevator floor door or car door closed door lock must be greater than 7mm, that is, the mechanical locking element (such as lock hook, latch) must be engaged or hooked for at least 7mm, so that the elevator car can operate normally.

[0033] In order to ensure the safety of elevator car operation, the engagement depth of the elevator door lock needs to be tested, based on two aspects: one is to find the critical point when the contacts of the electrical safety device just touch, and the other is to measure the length of overlap between the lock hook and the hook stop at the critical point, that is, the engagement depth of the door lock.

[0034] Currently, the methods for determining the critical point of door lock engagement mainly include spark method, sound method, trial operation, voltage method, etc.

[0035] The spark method is to determine the critical point of engagement of the locking element by observing the arc spark generated when the locking element just contacts the electrical safety device during the process of slowly closing. The locking element is kept in this critical state, and the engagement length of the lock hook is measured with a steel ruler. This method is suitable for door locks that are prone to arc sparks when the contacts are closed.

[0036] The sound method is to slowly close the locking element to make the electrical contacts just touch, and then listen to the sound of the contactor in the control cabinet to judge the critical point of the door lock engagement, thereby measuring the engagement length. This method is suitable for door lock inspection at low-rise elevators or at floors close to the control cabinet.

[0037] The test run is to keep pressing the inspection down button while slowly closing the door lock. When the car just starts to move, it is the door lock engagement critical point, and the engagement length at this time is measured. This method is applicable to the door lock engagement inspection of any elevator and any landing station, but it often has hysteresis and it is difficult to get the accurate critical point.

[0038] The voltage method is to select the voltage range through the multimeter, connect the two wires of the multimeter and the two electrical contacts of the door lock, then the multimeter reading is a certain constant value V, slowly close the locking element, when the multimeter reading suddenly changes from the constant value V to a value close to zero, it is the critical point of the door lock engagement. This method is more accurate in judging the critical point of engagement, but it is a bit troublesome to test.

[0039] In the actual elevator space, the door lock is installed on the top threshold of the elevator door. The bottom plate of the threshold itself is U-shaped. The bottom of the U is installed on the wall of the shaft, and the upper and lower guard plates are formed on both sides of the U. Opposite the threshold is the running car door. The space available for the door lock in the up and down directions and the front and back directions is very small. Therefore, it is impossible to automatically detect the engagement depth by setting measuring instruments around the door lock. The current traditional measurement methods include visual inspection, steel ruler or vernier caliper measurement, feeler gauge measurement, etc. Generally, staff are required to stand on the top of the car for inspection, and the normal operation of the elevator needs to be stopped. This is inefficient, requires a large number of inspection personnel, takes a long time to inspect, and the inspection results are greatly affected by the inspection personnel, and the accuracy is low.

[0040] Based on this, an embodiment of the present invention provides an elevator door lock engagement depth detector. When the electrical contacts are closed, the engagement depth is obtained by measuring the angle through a detachable sensor. The door lock engagement depth can be quickly detected with high accuracy without stopping the elevator.

[0041] The following is a detailed description through examples.

[0042] Figure 1 The structural diagram of the elevator door lock engagement depth detector provided by the embodiment of the present invention is applied to the field of elevator door lock safety detection to detect the door lock engagement depth between the door lock seat and the door lock hook, such as Figure 1 As shown, it includes an angle sensor 100, an acceleration sensor 200 and a processor;

[0043] The acceleration sensor 200 is detachably mounted on the electrical contact arm 302 of the door lock seat 300 of the elevator door lock, and is used to collect the acceleration signal when the electrical contact is closed, and send the acceleration signal to the angle sensor 100;

[0044] The angle sensor 100 is detachably mounted on the rotating arm 401 of the door lock hook 400 of the elevator door lock, and is used to measure in real time a first angle between the rotating arm 401 and a horizontal plane, and upon receiving an acceleration signal, to measure a second angle between the rotating arm 401 and the horizontal plane, and to send the first angle and the second angle to a processor;

[0045] The processor is used to receive the first angle and the second angle, and obtain the engagement depth between the door lock hook 400 and the door lock seat 300.

[0046] In a preferred embodiment of practical application, when the electrical contact is closed, the acceleration sensor 200 collects the acceleration signal to determine the critical point of engagement of the door lock, and the angle sensor 100 sends the first angle formed by the rotating arm 401 of the door lock hook 400 and the horizontal plane collected in real time and the second angle collected when the acceleration signal is received to the processor, so that the processor calculates the engagement depth of the door lock hook 400 and the door lock seat 300. Among them, by setting the detachable acceleration sensor 200 and the angle sensor 100 on the door lock, it does not affect the operation of the elevator, and can quickly detect the engagement depth of the door lock without stopping the normal operation of the elevator, and can detect the safety of the universal elevator door lock without being affected by the detection personnel, with high accuracy.

[0047] It should be noted that the embodiment of the present invention determines the critical point of the closure of the door lock electrical safety circuit by detecting the acceleration signal when the electrical contact arm 302 vibrates, and measures the length (engagement depth) of the overlap between the door lock hook 400 and the hook stop 301 of the door lock seat 300 at the critical point by measuring the angle using the angle sensor 100. By using the detachable acceleration sensor 200 and the angle sensor 100 set on the door lock, the door lock engagement depth can be directly detected at the elevator stop without affecting the normal operation of the elevator, and a single inspection staff can complete the measurement. The safety of the elevator door lock detection process is improved, while the work efficiency is improved, and the accuracy is high, avoiding elevator shutdown and insufficient measurement accuracy due to observation errors in the detection work.

[0048] In actual elevator applications, since the elevator door lock is an important part of the elevator, it is often installed at the top threshold of the elevator door, and the space at the top threshold is relatively small, and it is impossible to set up detection equipment around the door lock. This application uses a highly integrated angle sensor 100 and an acceleration sensor 200 to be detachably installed on the door lock, which can well meet the requirements of high-precision automatic measurement. At the same time, it is small in size, simple to install, and easy to operate, which greatly improves the detection efficiency and detection accuracy.

[0049] As an optional embodiment, the inspection staff does not need to stop the elevator work. When the elevator floor door is opened or parked, they can enter the elevator to complete the installation of the angle sensor 100 and the acceleration sensor 200. When the elevator floor door is closed, after measuring the engagement depth, the angle sensor 100 and the acceleration sensor 200 are uninstalled to complete the engagement depth detection of the elevator floor door lock.

[0050] In an optional embodiment, the processor includes a handheld intelligent terminal such as a handheld data processor, which is convenient for the detection staff to carry and move.

[0051] In some possible preferred embodiments, the angle sensor 100 may include a high-frequency and high-precision tilt sensor, a multi-serial port MCU, a clock, a memory, a Bluetooth and WIFI module, a battery and other devices to complete the reception of acceleration signals and the collection of angle signals when the door lock electrical safety circuit is closed. The acceleration sensor 200 includes a micro serial acceleration module, a WIFI module, a battery and other devices, which are used to collect the acceleration signal of the electrical contact arm 302 during the closing process of the elevator door lock and send it to the angle sensor 100. Bluetooth communication can be used for data transmission between the angle sensor 100 and the handheld data processor.

[0052] It can be understood that the internal device composition of the above-mentioned angle sensor 100 and acceleration sensor 200 is only an exemplary embodiment. The component structure that can realize the functions of the above-mentioned angle sensor 100 and acceleration sensor 200 can complete the embodiment of the present invention. The device composition and internal device connection of the angle sensor 100 and acceleration sensor 200 are not specifically limited here, and those skilled in the art can know it.

[0053] In order to further achieve the purpose of detachably setting the acceleration sensor 200 and the angle sensor 100 on the elevator door lock, in an optional embodiment, the detector also includes a suction component, which is respectively arranged on the acceleration sensor 200 and the angle sensor 100, and is used to detachably suction and attach the acceleration sensor 200 and the angle sensor 100 to the electrical contact arm 302 and the rotating arm 401, respectively.

[0054] As an optional embodiment, the suction and assembly includes a fixing component and a magnetic component;

[0055] The fixing components are connected to the acceleration sensor 200 and the angle sensor 100 respectively, and are used to detachably set the magnetic components on the acceleration sensor 200 and the angle sensor 100 respectively.

[0056] Here, the elevator door lock is generally made of metal material, which can be adsorbed by magnetic materials. In the embodiment of the present invention, the magnetic components are respectively arranged on the acceleration sensor 200 and the angle sensor 100 through the fixing components, and then the acceleration sensor 200 and the angle sensor 100 are fixed to the elevator door lock through the magnetic components. Among them, the fixing components may include fixing sleeves that match the sizes of the acceleration sensor 200 and the angle sensor 100, respectively, and are set on the acceleration sensor 200 and the angle sensor 100 to fix the magnetic components.

[0057] like Figure 2 , Figure 3 As shown, the door opening and closing action of the door lock is realized by the door machine driving the door knife 500, which in turn drives the door lock roller 501. In addition to relying on the door closing drive of the door machine and the mechanical locking of the door lock hook 400 and the door lock seat 300, the closing and locking of the elevator floor door also rely on the electrical safety device for verification. The two are combined into one to form a complete electromechanical door lock device. The door lock hook 400 approaches the door lock seat 300 along the inclined surface of the hook stop 301, reaches the inner edge of the hook stop 301, sinks to form a mechanical lock; the conductive sheet 402 in the door lock hook 400 hits the electrical contact arm 302 in the door lock seat 300 to form an electrical safety circuit closure, and the elevator door lock is closed through the process of mechanical locking and electrical safety circuit closure.

[0058] During the closing process of the door lock, the door lock hook 400 driven by the rotating arm 401 rotates at a small angle with the door lock roller 501 as the center. When the rotation reaches a certain degree, the conductive sheet 402 collides with the electrical contact arm 302, and the electrical safety circuit is turned on. The collision conduction causes the electrical contact arm 302 to vibrate and generate an acceleration. The embodiment of the present invention obtains the critical point signal of the closing of the door lock electrical circuit through the acceleration signal when the electrical contact arm 302 vibrates, and obtains the engagement depth of the door lock by combining the angle signal during the closing process of the door lock and the angle signal of the critical point of the closing of the electrical circuit.

[0059] It is understandable that the electrical contact arm 302 is always in a stationary state during the closing process of the elevator door lock, with a constant speed and an acceleration of 0, until the conductive sheet 402 collides with the electrical contact arm 302 at the moment the door lock is closed. The acceleration sensor 200 collects the acceleration signal and sends it to the angle sensor 100. When the angle sensor 100 receives the acceleration signal, it automatically stops detecting the angle signal, and at the same time transmits the angle signal when stopping and the angle signal collected in real time before stopping to the handheld data processor. The handheld data processor automatically calculates the engagement depth of the door lock according to the received angle signal. As an optional embodiment, the handheld data processor includes a display screen, an input device, a memory, a communication module and a printing module, which can display, store, print and upload the detection process data and the detection results. Here, the input device includes a keyboard and a touch screen.

[0060] In the actual measurement process, the length of the rotating arm 401 of the door lock hook 400 will be set in advance in the handheld data processor. For the elevator door lock that is tested for the first time, it is necessary to calibrate and measure the length of its door lock rotating arm 401. In an optional embodiment, the door lock seat 300 includes a hook stopper 301 for engaging with the door lock hook 400, and the detector also includes a standard block 600, which is detachably arranged on the door lock seat 300 and is used to calibrate the length of the rotating arm 401 of the door lock hook 400. The length of the rotating arm 401 is as follows: Figure 2 as shown in .

[0061] like Figure 4 As shown, in an optional embodiment, the standard block 600 is used for calibration and calibration, and the standard block 600 includes a mounting seat 603, an adjustment rod 602 and a calibration block 601, the mounting seat 603 is detachably arranged on the door lock seat 300, and the calibration block 601 is connected to the mounting seat 603 through the adjustment rod 602;

[0062] The adjusting rod 602 is used to adjust the height of the calibration block 601 so that the calibration block 601, the door lock hook 400 and the hook stop 301 are in contact with each other.

[0063] In order to ensure the stability and reliability of the abutment between the calibration block 601, the door lock hook 400 and the hook stop 301, as an optional implementation, the lower surface of the calibration block 601 also includes an abutment block 605. Through the abutment relationship between the abutment block 605 and the hook stop 301, the abutment effect of the calibration block 601, the door lock hook 400 and the hook stop 301 is more stable and the measurement value is more accurate.

[0064] Here, the shape of the standard block 600 is not specifically limited. Figure 4 It can be used as a preferred embodiment.

[0065] Among them, Figure 4 , 5 As shown, the calibration block in the standard block is a step block with a fixed height difference. A circular groove 604 is provided inside the calibration block. The height of the calibration block is consistent with the thickness of the circular groove 604, both of which are preset fixed heights H, such as 3mm, 5mm, etc. The standard block is placed on the inner side of the door lock hook stop. When the door lock hook is stuck on the step of the calibration block in the standard block (the upper surface of the calibration block) and under the step (the bottom of the circular groove 604, i.e., the lower surface of the calibration block), the angle sensor measures the angle twice respectively to obtain the angle difference A.

[0066] Here, the height difference of the calibration block is H, and the angle difference corresponding to the height difference of the calibration block is A, then 2πL / 360*A=H, that is, L=H*360 / 2πA, where L is the length of the rotating arm. It can be understood that the change in angle (angle difference) in this process is very small, so the difference between arc length and chord length can be ignored, and they are approximately considered equal, that is, the height difference (chord length) of the calibration block is approximately used as the arc length corresponding to the angle difference A.

[0067] The handheld data processor calculates the length L of the elevator door lock rotating arm based on the height difference H of the calibration block and the angle difference A measured by the angle sensor when the calibration block, the door lock hook and the hook stop are in contact, and records and stores it.

[0068] In order to more accurately detect the engagement depth, as a static engagement depth calculation method, the angle change of a calibration block with a fixed height during the door lock closing process can also be combined to obtain the angle signal of the door lock engagement, and then the engagement depth of the door lock can be obtained.

[0069] Here, the angle sensor is also used to send a measured third angle signal to the processor when the calibration block, the door lock hook and the hook stop are in contact with each other.

[0070] The processor is also used to receive the second angle and the third angle, and calculate the engagement depth between the door lock hook and the door lock seat.

[0071] Among them, the handheld data processor receives from the angle sensor a third angle when the door lock hook and the hook block are in contact, and the second angle when the acceleration signal is received to terminate the detection, as well as the preset door lock rotating arm length L, and calculates the engagement depth of the door lock hook and the hook block in the door lock seat through geometric relationships. The specific calculation method can refer to the dynamic calculation method of the engagement depth.

[0072] like Figure 6 As shown, here, as a method for dynamically calculating the engagement depth, the embodiment of the present invention calculates the engagement depth of the door lock according to the angle change. Since the length of the rotating arm is known, the calculation is simple.

[0073] Suppose the angle at which the door lock hook reaches the highest point is α, which is the maximum angle in the door lock closing process (select the angle with the largest angle with the horizontal plane in the first angle), and the angle of the door lock closing critical point (the second angle) is β, then the door lock engagement depth D≈L(sinα-sinβ).

[0074] It should be noted that the angle of the rotating arm and the angle of the angle sensor may be slightly different due to installation reasons. The deviation angle between the angle of the rotating arm and the angle sensor is expressed as It means that the deviation angle is small and can be approximately ignored, that is, the engagement depth of the door lock is:

[0075]

[0076] Here, because Very small, so That is, D≈L(sinα-sinβ).

[0077] In the actual measurement process, the testing staff generally adopts the following measurement process:

[0078] 1) Press the elevator floor button to drive the elevator to the floor where the inspector is located. After the floor door is opened, the inspector enters the elevator car and uses an obstacle to prevent the door from closing or presses the door opening button to prevent the door from closing;

[0079] 2) Attach the angle sensor to the door lock hook, basically parallel to the rotating arm of the door lock hook, and turn on the power switch of the angle sensor; attach the acceleration sensor to the electrical contact arm, and turn on the power switch of the acceleration sensor; start the handheld data processor detection software to start measurement.

[0080] 3) Remove the obstacle or release the door opening button to make the door lock close automatically and start measuring the door lock engagement depth;

[0081] 4) Repeatedly opening and closing the door can obtain multiple measurement results.

[0082] 5) After the measurement is completed, remove the angle sensor and acceleration sensor to complete the detection of the engagement depth of the door lock on this floor.

[0083] 6) Repeat the above steps for other elevator floors to complete the detection of the engagement depth of the door locks at other floors.

[0084] Furthermore, an embodiment of the present invention also provides an elevator system, including the elevator door lock engagement depth detector and an elevator body as described above, the elevator body including at least one, the door lock engagement depth detector can be installed inside each elevator body, the inspection staff can inspect each elevator by carrying a processor, or multiple inspection staff can carry the processors corresponding to the elevators to inspect each elevator within their scope of responsibility.

[0085] The elevator door lock engagement depth detector and elevator system provided in the embodiments of the present invention are generally used to detect the engagement depth of various elevator door locks without affecting the operation of the elevator. The elevator door lock engagement depth can be measured by using the elevator running gap. During the detection process, there is no need to operate the switch of the safety circuit. The closing instant point of the safety circuit can be automatically obtained during the operation of the elevator. It can be installed and disassembled at the top door sill of the elevator with a small space. The operation is convenient and simple. A single detection staff can complete the inspection, and the number of detection staff required is relatively low.

[0086] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0088] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0091] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily conceive of changes, or make equivalent replacements for some of the technical features therein. Such modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. An elevator door lock engagement depth detector, characterized in that: Including angle sensor, acceleration sensor and processor; The acceleration sensor is detachably mounted on the electrical contact arm of the door lock seat of the elevator door lock, and is used to collect the acceleration signal when the electrical contact is closed, and send the acceleration signal to the angle sensor; wherein, when the electrical contact is closed, the acceleration signal collected by the acceleration sensor is used to determine the engagement critical point of the elevator door lock; The angle sensor is detachably mounted on the rotating arm of the door lock hook of the elevator door lock, and is used to measure in real time a first angle between the rotating arm and a horizontal plane, and upon receiving the acceleration signal, to measure a second angle between the rotating arm and the horizontal plane, and to send the first angle and the second angle to the processor; The processor is used to receive the first angle and the second angle, and obtain the engagement depth between the door lock hook and the door lock seat; The acceleration sensor is used to collect the acceleration signal of the electrical contact arm when the conductive sheet of the door lock hook and the electrical contact arm of the door lock seat are closed, and send the acceleration signal to the angle sensor.

2. The elevator door lock engagement depth detector according to claim 1, characterized in that: The door lock seat includes a hook stopper for engaging with the door lock hook, and the detector also includes a standard block, which is detachably arranged on the door lock seat and is used to calibrate the length of the rotating arm of the door lock hook.

3. The elevator door lock engagement depth detector according to claim 2, characterized in that: The standard block comprises a mounting seat, an adjustment rod and a calibration block, wherein the mounting seat is detachably arranged on the door lock seat, and the calibration block is connected to the mounting seat via the adjustment rod; The adjusting rod is used to adjust the height of the calibration block so that the calibration block, the door lock hook and the hook stop are in contact with each other.

4. The elevator door lock engagement depth detector according to claim 3, characterized in that: The angle sensor is also used to send a measured third angle signal to the processor when the calibration block, the door lock hook and the hook stop are in contact with each other.

5. The elevator door lock engagement depth detector according to claim 4, characterized in that: The processor receives the third angle signal, and calibrates and records the length of the rotating arm.

6. The elevator door lock engagement depth detector according to claim 5, characterized in that: The processor is also used to receive the second angle and the third angle, and obtain the engagement depth of the door lock hook and the door lock seat.

7. The elevator door lock engagement depth detector according to claim 1, characterized in that: The detector also includes a suction component, which is respectively arranged on the acceleration sensor and the angle sensor, and is used to detachably suction the acceleration sensor and the angle sensor to the electrical contact arm and the rotating arm, respectively.

8. The elevator door lock engagement depth detector according to claim 7, characterized in that: The suction and assembly comprises a fixing component and a magnetic component; The fixing components are respectively connected to the acceleration sensor and the angle sensor, and are used to detachably mount the magnetic components on the acceleration sensor and the angle sensor.

9. An elevator system, characterized in that: The invention comprises an elevator door lock engagement depth detector as described in any one of claims 1 to 8 and an elevator body.

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