CN114812377A - Elevator door lock engagement depth online monitoring system and method - Google Patents

Abstract

The invention discloses an elevator door lock engagement depth online monitoring system and method, wherein the system comprises an information acquisition mechanism and an information processing mechanism, the information acquisition mechanism comprises a first shell arranged between a hook block and an installation plate, the first shell is detachably connected with the installation plate, a sliding sheet is connected in the first shell in a sliding mode and is abutted against a lock hook, an elastic reset part is arranged between the sliding sheet and the bottom of the first shell, a monitoring assembly used for detecting the position of the sliding sheet is arranged in the first shell, and the monitoring assembly is electrically connected with the information processing mechanism. According to the elevator door lock meshing depth monitoring device, the position of the sliding sheet in the first shell is monitored in real time through the monitoring assembly, so that the elevator door lock meshing depth is obtained, and the obtained elevator door lock meshing depth is more accurate.

Description

An online monitoring system and method for the meshing depth of an elevator door lock

technical field

The invention relates to the technical field of elevator detection equipment, in particular to an on-line monitoring system and method for the meshing depth of elevator door locks.

Background technique

As an indispensable equipment in modern society, the safety of elevators has also received extensive attention from people. For people falling into wells, most of them are caused by elevator door failure, and elevator door locks are the only line of defense for elevator doors, so the reliability of elevator door locks is particularly important. The state stipulates that the elevator car can only be started when the locking element is engaged by no less than 7mm. It can be seen that the engagement depth of the elevator door lock is an important indicator for judging whether an elevator is safe.

At this stage, the detection of the meshing depth of the elevator door lock still adopts the method of manual periodic detection. It needs to manually go down the well and use a measuring instrument such as a ruler to measure. The accuracy is low, the human subjectivity is seriously affected, the human and material resources are high, and the regular detection is time-effective. Due to poor performance, it is impossible to accurately monitor the meshing depth of elevator door locks in real time.

The application publication number is CN108426536A for an elevator door lock meshing depth measurement device and measurement method. The linear laser distance sensor is used to detect the meshing depth of the elevator door lock, which improves the detection accuracy to a certain extent, but the linear laser distance sensor is susceptible to environmental interference. impact, and it still requires manual periodic inspection, and does not have the function of real-time monitoring.

The elevator door lock meshing depth detector and elevator system with the application publication number CN110422718A adopts the angle sensor to monitor the meshing depth of the elevator door lock in real time, without manual periodic inspection, but it can calculate the meshing depth of the door lock through the rotation angle of the door lock hook. This method belongs to indirect measurement. When the meshing part of the door lock hook is worn, or the door lock hook is bent and deformed, this method cannot achieve accurate measurement, and the device cannot be easily installed on the existing elevator door lock. .

Therefore, how to achieve real-time and accurate monitoring of the meshing depth of existing elevator door locks is an urgent problem to be solved at this stage.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an on-line monitoring system and method for the meshing depth of an elevator door lock to solve the above-mentioned problems in the prior art.

For achieving the above object, the present invention provides following scheme:

The invention provides an on-line monitoring system for the meshing depth of an elevator door lock, which includes a mounting plate fixedly arranged in the elevator door lock, a hook block and a lock hook fixedly installed on one side of the mounting plate, and the lock hook and the hook block are in phase with each other. It also includes an information collection mechanism and an information processing mechanism. The information collection mechanism includes a first casing disposed between the hook and the mounting plate, and the first casing is detachably connected to the mounting plate. , a sliding piece is slidably connected inside the first shell, the sliding piece is in contact with the lock hook, an elastic reset part is arranged between the sliding piece and the bottom of the first shell, and the inside of the first shell is provided with a useful The monitoring component for detecting the position of the sliding blade is electrically connected with the information processing mechanism.

Preferably, the monitoring component includes metal rods and coils disposed on both sides of the sliding sheet, two ends of the sliding sheet are respectively slidably connected with the metal rods and the coils, and the metal rods and the coils are both processed with information through wires. Mechanism electrical connection.

Preferably, the elastic reset portion is a spring, one end of the spring is fixedly connected to the bottom of the first housing, and an insulating sheet is fixedly connected between the other end of the spring and the sliding sheet.

Preferably, the elastic reset portion is arranged just below the hook tip of the lock hook, and the metal rod and the coil are symmetrically arranged with respect to the elastic reset portion.

Preferably, the information processing mechanism further includes a second casing, the second casing is detachably connected to the mounting plate, the first casing and the second casing are fixedly connected, and the second casing is internally provided There is a measuring assembly, two ends of the measuring assembly are electrically connected to the metal rod and the coil respectively, the metal rod, the slide, the coil, the wire and the measuring assembly form a current loop, and the measuring assembly is used to provide current for the current loop And measure the resistance between the two wires in the current loop.

Preferably, the information processing mechanism further includes a wireless transmitting component, a control component and a wireless receiving component, the wireless transmitting component, the measuring component and the control component are all electrically connected, and the control component and the wireless receiving component are electrically connected, so The control assembly is electrically connected with an alarm, and the alarm is detachably connected to different floors, and the wireless transmitting assembly and the wireless receiving assembly are used for information transmission between different floors.

Preferably, it also includes a control center, which is a terminal of an on-line monitoring system for the meshing depth of elevator door locks, and the control center receives the signals sent by the wireless transmitting components in the elevators on each floor.

An on-line monitoring method for the meshing depth of an elevator door lock, based on any of the above-mentioned online monitoring systems for the meshing depth of an elevator door lock, comprising the following steps:

S1. When the elevator door lock is closed, the monitoring component monitors the position of the slider relative to the first housing in real time;

S2. The information processing mechanism obtains the signal from the monitoring component, and obtains the engagement depth of the elevator door lock;

S3. When the obtained elevator door lock engagement depth does not meet the requirements, an alarm is issued, and the information on the elevator door lock engagement depth of this floor is transmitted to the control center and the information processing mechanism on the adjacent floor.

Preferably, in S1, the lock hook is fastened, the hook tip of the lock hook moves downward, and the sliding piece is pushed downward, and the measuring component provides current for the current loop formed by the metal rod, the sliding piece, the coil, the wire and the measuring component. The resistance between the wires becomes smaller, and the measuring component measures the resistance between the two wires in the current loop when the slider is in different positions.

The present invention discloses the following technical effects: the present invention monitors the position of the sliding blade in the first housing in real time through the monitoring component, thereby obtaining the meshing depth of the elevator door lock, so that the obtained meshing depth of the elevator door lock is more accurate; The difference between the resistance values of the two wires in the middle can be used to know whether the two sets of coils are faulty, which enhances the reliability of the system; when a problem is found, an alarm is issued in time, which can effectively avoid casualties and accidents; a layer-by-layer wireless data transmission system is adopted , which greatly reduces the difficulty of installation, and can realize real-time monitoring of the meshing depth of the elevator door lock.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of an information collection mechanism and an information processing mechanism of the present invention;

Fig. 2 is the structural schematic diagram of the online monitoring system of the present invention;

Fig. 3 is the front view of the online monitoring system of the present invention;

4 is a schematic diagram of the internal structure of the online monitoring system of the present invention;

5 is a schematic structural diagram of an information processing mechanism of the present invention;

6 is a schematic diagram of the working principle of the system of the present invention;

FIG. 7 is a flow chart of the method of the present invention.

Among them, 1. locking hook; 2. mounting plate; 3. monitoring device; 301, metal rod; 302, coil; 303, sliding plate; 304, spring; 305, wire; 308, control assembly; 309, wireless receiving assembly; 4, hook file; 5, alarm; 6, control center.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

1-7, the present invention discloses an on-line monitoring system for the meshing depth of an elevator door lock, which includes a mounting plate 2 fixedly arranged in the elevator door lock, a hook block 4 fixedly installed on one side of the mounting plate 2, and a lock hook 1 , the lock hook 1 and the hook file 4 are matched; the mounting plate 2 is a rectangular flat plate structure, which is fixedly installed in the elevator door lock, and the mounting plate 2 is an existing part of the elevator door lock; the hook file 4 is a curved flat plate structure, and the hook file 4 is fixedly installed on one side of the mounting plate 2, and the hook 4 is an existing part of the elevator door lock; the lock hook 1 is a hook-shaped flat plate structure, which can perform rotary motion, and cooperates with the hook 4 to control the elevator door lock through the rotary motion. The opening and closing are the existing components of the elevator door lock; the engagement depth between the lock hook 1 and the hook block 4 is the object to be monitored by the present invention.

An on-line monitoring system for the meshing depth of an elevator door lock further includes a monitoring device 3, the monitoring device 3 includes an information collection mechanism and an information processing mechanism, and the information collection mechanism includes a first housing disposed between the hook gear 4 and the mounting plate 2, A housing is detachably connected to the mounting plate 2, a sliding piece 303 is slidably connected inside the first housing, the sliding piece 303 is in contact with the lock hook 1, and an elastic reset portion is arranged between the sliding piece 303 and the bottom of the first housing, A monitoring component for detecting the position of the sliding sheet 303 is arranged inside a housing, and the monitoring component is electrically connected with the information processing mechanism. The monitoring component includes a metal rod 301 and a coil 302 arranged on both sides of the sliding sheet 303. The two ends of the sliding sheet 303 are respectively slidably connected to the metal rod 301 and the coil 302. Both the metal rod 301 and the coil 302 are electrically connected to the information processing mechanism through wires 305. sexual connection.

The metal rod 301 is a bar-shaped cylindrical structure, which is vertically located at the left position below the hook tip of the lock hook 1, and its material is a metal material with strong conductivity and low resistance; The specific material of the resistance wire is constantan wire or nickel-chromium alloy wire, which is symmetrically arranged with the metal rod 301 about the position of the hook tip of the lock hook 1, and its length is the same as that of the metal rod 301; the sliding piece 303 is The strip-shaped plate structure is made of metal material with strong conductivity and low resistance, and its two ends are respectively connected with the metal rod 301 and the coil 302, which can move up and down freely, and can be pressed by the lock hook 1 to move downward. The metal rod 301, the sliding piece 303, and the coil 302 can all pass through the current. When the lock hook 1 pushes the sliding piece 303 downward, the contact position of the sliding piece 303 with the metal rods 301 and the coil 302 on both sides changes. Thus, the resistance in the circuit formed by the three is changed, thereby indicating the engagement depth of the elevator door lock.

The elastic reset part is a spring 304 , one end of the spring 304 is fixedly connected to the bottom of the first housing, and an insulating sheet is fixedly connected between the other end of the spring 304 and the sliding sheet 303 . The elastic reset portion is arranged just below the hook tip of the lock hook 1, and the metal rod 301 and the coil 302 are symmetrically arranged with respect to the elastic reset portion. The damping of the spring 304 can make it not affect the movement of the lock hook 1 when the lock hook 1 presses the sliding piece 303 to move downward. At this time, the spring 304 is compressed. Similarly, when the lock hook 1 moves upward, the spring 304 restores its original length, and Push the slider 303 to move upward.

To further optimize the solution, the information processing mechanism includes a second casing, the second casing is detachably connected to the mounting plate 2, the second casing is a rectangular block structure, and the second casing is fixedly installed on the mounting plate 2 through a buckle , the number of buckles is not limited to four, and can be flexibly installed on the existing elevator door lock. The first casing and the second casing are fixedly connected, and a measuring assembly 306 is arranged inside the second casing. The two ends of the measuring assembly 306 are electrically connected to the metal rod 301 and the coil 302 respectively. The metal rod 301, the sliding sheet 303, the coil 302. The wire 305 and the measurement component 306 form a current loop. The measurement component 306 is used to provide current for the current loop and measure the resistance between the two wires 305 in the current loop. The measurement component 306 integrates a PLC controller for analysis. Processing the obtained data, the PLC controller and the connection method are in the prior art, and will not be repeated here.

To further optimize the solution, the information processing mechanism also includes a wireless transmitting component 307, a control component 308 and a wireless receiving component 309. The wireless transmitting component 307 is electrically connected with the measuring component 306 and the control component 308, and the control component 308 and the wireless receiving component 309 are electrically connected. For connection, the control component 308 is electrically connected with the alarm 5, and the alarm 5 is detachably connected to different floors. The wireless transmitting component 307 and the wireless receiving component 309 are used for information transmission between different floors. The information processing mechanism also includes a control center 6 , which is a terminal of an on-line monitoring system for the engagement depth of elevator door locks, and receives signals from the wireless transmitting components 307 in the elevators on each floor.

This embodiment provides an on-line monitoring device for the engagement depth of an elevator door lock, which includes two sets of current loops, and the two sets of current loops are connected to the same measuring component 306. During the detection process, the measuring component 306 obtains two wires 305 in the current loop. By comparing the two sets of values, it is judged whether the error of the resistance difference meets the requirements, and the meshing depth data is obtained according to the average resistance value, and it is judged whether the meshing depth meets the national standard; the wireless transmitting component 307 is located in the main body of the monitoring device 3 The upper side is used to wirelessly transmit the meshing depth data measured by the measuring assembly 306 to the wireless receiving assembly 309 of the adjacent floor; the control assembly 308 is located on the right side of the main body of the monitoring device 3 to control the alarm 5 to issue an alarm; wireless The receiving component 309 is located on the lower side of the main body of the monitoring device 3, and is used for receiving the meshing depth data sent by the wireless transmitting component 307 on the adjacent floor. The monitoring device 3 is installed at the elevator door lock on each floor to monitor the resistance value to obtain the meshing depth data of the elevator door lock, wirelessly send and receive meshing depth data or resistance value data, and control the alarm 5; the alarm 5 is installed on each floor The elevator door is used to issue an alarm when the engagement depth of the elevator door lock does not meet the requirements; the control center 6 is located on a certain floor of the building, which is the terminal of an online monitoring system for the engagement depth of the elevator door lock, which is used to receive the elevator door in question. The two sets of resistance value or meshing depth data obtained from the monitoring of the lock are provided to the staff. By judging the difference between the resistance values of the two wires in the current loop, the invention can know whether there is a faulty coil, thereby enhancing the reliability of the system; when a problem is found, an alarm is issued in time, which can effectively avoid casualties and accidents; The system of wireless data transmission between floors greatly reduces the difficulty of installation, and can realize real-time monitoring of the meshing depth of elevator door locks.

A method for online monitoring of the meshing depth of an elevator door lock, comprising the following steps:

S1. When the elevator door lock is closed, the monitoring component monitors the position of the slider 303 relative to the first housing in real time;

S2. The information processing mechanism obtains the signal from the monitoring component, and obtains the engagement depth of the elevator door lock;

S3. When the obtained elevator door lock engagement depth does not meet the requirements, an alarm is issued, and the information of the elevator door lock engagement depth of the floor is transmitted to the control center 6 and the information processing mechanism of the adjacent floor.

Preferably, the control center 6 is set on the topmost floor of the building. When the obtained elevator door lock engagement depth does not meet the requirements, an alarm is issued, and the information on the elevator door lock engagement depth of this floor is transmitted to the information on the previous floor. Processing mechanism, and finally to the control center 6.

The locking hook 1 is buckled, the hook tip of the locking hook 1 moves downward, and pushes the sliding piece 303 to move downward. , the resistance between the two wires 305 becomes smaller, and the measuring component 306 measures the resistance between the two wires 305 in the current loop when the slider 303 is at different positions. At the same time, the measuring component 306 judges whether the difference between the two resistance values meets the error requirement; if the difference between the resistance values meets the error requirement, the measuring component 306 obtains the meshing depth data according to the average resistance value, and at the same time judges whether the meshing depth data meets the national standard .

If the difference between the two groups of resistance values obtained by monitoring does not meet the error requirements, the monitoring device 3 controls the alarm 5 on the floor through the control component 308 to issue an alarm; or when the meshing depth data obtained by the measuring component 306 does not meet the national standard, Then the monitoring device 3 controls the alarm 5 on the floor to issue an alarm through the control assembly 308 . If the difference between the two groups of resistance values obtained by monitoring meets the error requirements, and the meshing depth data obtained by the measuring component 306 meets the national standard, the elevator operates normally and no alarm is issued.

If the difference between the two groups of resistance values monitored in S1 does not meet the error requirement, then after S2 is performed, the two groups of resistance data monitored in S1 are transmitted upward layer by layer through the wireless transmitting component 307 and the wireless receiving component 309, Send the data to the control center 6, and provide the two sets of resistance data and floor conditions to the staff; or when the obtained meshing depth data does not meet the national standard, after S2 is performed, the two sets of data monitored in S1 will be The resistance data is transmitted upwards layer by floor through the wireless transmitting component 307 and the wireless receiving component 309, and the data is transmitted to the control center 6, and two sets of resistance data and floor conditions are provided to the staff.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only to describe the preferred modes of the present invention, but not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (9)

1. An on-line monitoring system for the meshing depth of an elevator door lock, comprising a mounting plate (2) fixedly arranged in the elevator door lock, a hook block (4) fixedly installed on one side of the mounting plate (2), and a lock hook ( 1), the lock hook (1) is adapted to the hook file (4), and it is characterized in that: it also includes an information collection mechanism and an information processing mechanism, and the information collection mechanism A first casing between the mounting plates (2), the first casing is detachably connected to the mounting plate (2), a sliding plate (303) is slidably connected inside the first casing, and the sliding The sheet (303) collides with the locking hook (1), an elastic reset portion is provided between the sliding sheet (303) and the bottom of the first casing, and a sliding sheet (303) is provided inside the first casing for detecting the sliding sheet (303). ) position monitoring component, the monitoring component is electrically connected with the information processing mechanism. 2 . The online monitoring system for the engagement depth of an elevator door lock according to claim 1 , wherein the monitoring component comprises metal rods ( 301 ) and coils ( 302 ) disposed on both sides of the sliding sheet ( 303 ). 3 . ), the two ends of the sliding sheet (303) are respectively slidably connected with the metal rod (301) and the coil (302), and the metal rod (301) and the coil (302) are electrically connected to the information processing mechanism through the wire (305). sexual connection. 3. The online monitoring system for the engagement depth of an elevator door lock according to claim 1, wherein the elastic reset portion is a spring (304), and one end of the spring (304) is fixed to the bottom of the first housing connection, an insulating sheet is fixedly connected between the other end of the spring (304) and the sliding sheet (303). 4 . The online monitoring system for the meshing depth of an elevator door lock according to claim 2 , wherein the elastic reset portion is arranged just below the hook tip of the lock hook ( 1 ), and the metal rod ( 301 ). 5 . ) and the coil (302) are symmetrically arranged with respect to the elastic reset portion. 5 . The online monitoring system for the engagement depth of an elevator door lock according to claim 2 , wherein the information processing mechanism further comprises a second casing, and the second casing and the mounting plate (2) are detachable. 6 . connection, the first shell and the second shell are fixedly connected, the second shell is provided with a measuring assembly (306), and the two ends of the measuring assembly (306) are respectively connected with the metal rod (301) and the coil (302) Electrically connected, the metal rod (301), the slide (303), the coil (302), the wire (305) and the measuring assembly (306) form a current loop, and the measuring assembly (306) is used for The current loop supplies current and measures the resistance between two wires (305) in the current loop. 6. The system for online monitoring of the engagement depth of an elevator door lock according to claim 5, wherein the information processing mechanism further comprises a wireless transmitting component (307), a control component (308) and a wireless receiving component (309) , the wireless transmitting component (307) is electrically connected with the measuring component (306) and the control component (308), the control component (308) is electrically connected with the wireless receiving component (309), and the control component (308) is electrically connected ) is electrically connected with an alarm (5), the alarm (5) is detachably connected to different floors, and the wireless transmitting assembly (307) and the wireless receiving assembly (309) are used for information transmission between different floors. 7. An on-line monitoring system for the meshing depth of an elevator door lock according to claim 6, characterized in that: it further comprises a control center (6), and the control center (6) is an on-line monitoring system for the meshing depth of an elevator door lock. The control center (6) receives the signal sent by the wireless transmitting component (307) in the elevator of each floor. 8. An on-line monitoring method for the meshing depth of an elevator door lock, based on an online monitoring system for the meshing depth of an elevator door lock according to any one of claims 1-7, characterized in that: comprising the following steps: S1. When the elevator door lock is closed, the monitoring component monitors the position of the slider (303) relative to the first housing in real time; S2. The information processing mechanism obtains the signal from the monitoring component, and obtains the engagement depth of the elevator door lock; S3. When the obtained elevator door lock engagement depth does not meet the requirements, an alarm is issued, and the information of the elevator door lock engagement depth of the floor is transmitted to the control center (6) and the information processing mechanism of the adjacent floor. 9. The method for online monitoring of the meshing depth of an elevator door lock according to claim 8, characterized in that: in S1, the lock hook (1) is buckled, the hook tip of the lock hook (1) moves downward, and the sliding sheet (1) is pushed down. 303) moves downward, the measuring assembly (306) provides current for the current loop formed by the metal rod (301), the sliding piece (303), the coil (302), the wire (305) and the measuring assembly (306), and the two wires ( The resistance value between 305) becomes smaller, and the measuring component (306) measures the resistance value between the two wires (305) in the current loop when the slider (303) is in different positions.

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