CN211871076U - Elevator fault detection system and door lock contact life monitoring device thereof - Google Patents
Elevator fault detection system and door lock contact life monitoring device thereof Download PDFInfo
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- CN211871076U CN211871076U CN202020078938.6U CN202020078938U CN211871076U CN 211871076 U CN211871076 U CN 211871076U CN 202020078938 U CN202020078938 U CN 202020078938U CN 211871076 U CN211871076 U CN 211871076U
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Abstract
The utility model discloses a door lock contact life monitoring device, which comprises a monitor for monitoring the elevator landing door switch; the alarm is electrically connected with the monitor; the alarm includes: a processing portion electrically connected to the monitor; the screen display part is electrically connected with the processing part and used for displaying the service life of the door lock contact; and the warning part is electrically connected with the processing part and used for sending out a warning signal. The door lock contact service life monitoring device can intuitively reflect the service life of the door lock contact on the elevator landing door, and solves the problems that the door lock contact is excessively maintained and is not maintained timely. Furthermore, the utility model also discloses an elevator fault detection system of including above-mentioned lock contact life-span monitoring devices.
Description
Technical Field
The utility model relates to a life-span monitoring technology field especially relates to a lock contact life-span monitoring devices. Furthermore, the utility model discloses still relate to an elevator fault detection system including above-mentioned lock contact life-span monitoring devices.
Background
It is known that elevator fault detection systems are regularly maintained in order to ensure safe operation of the elevator. At present, at the in-process of maintaining the elevator layer door of floor elevator mouth department, the staff is mainly to change the lock contact of elevator layer door, and this lock contact will trigger once when elevator layer door is completely closed, and the life of lock contact has tens of thousands of times usually, if the lock contact became invalid, then can cause dangerous consequences such as elevator sudden shutdown.
However, the maintenance work according to the length of the service time cannot distinguish the difference of the use frequency of the floors, because the frequency of the elevator stopping at different floors is very different. For a floor with frequent people flows, the door lock contact corresponding to the floor may be already failed after the preset maintenance time; for floors with less people flow, the door lock contact corresponding to the floor can still be used for tens of thousands of times after the preset maintenance time.
Therefore, how to effectively determine whether the elevator landing door of each floor needs maintenance becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lock contact life-span monitoring devices, this lock contact life-span monitoring devices can reflect the life of lock contact on the elevator layer door directly perceivedly, has solved the lock contact by excessive maintenance and the untimely problem of maintenance. Another object of the utility model is to provide an elevator fault detection system including above-mentioned lock contact life-span monitoring devices.
In order to achieve the above object, the utility model provides a door lock contact life-span monitoring devices, include: a monitor for monitoring the opening and closing of the landing door of the elevator; the alarm is electrically connected with the monitor; the alarm includes: a processing portion electrically connected to the monitor; the screen display part is electrically connected with the processing part and used for displaying the service life of the door lock contact; and the warning part is electrically connected with the processing part and used for sending out a warning signal.
Preferably, the monitor is embodied as an inductive proximity switch.
Preferably, the screen display part is specifically an LED nixie tube display screen.
Preferably, the warning portion is a buzzer and/or an indicator light.
Preferably, the processing section includes: a central processing module electrically connected to the monitor; the alarm driving module is electrically connected with the central processing module and used for sending an alarm signal to the warning part; and the display driving module is electrically connected with the central processing module and used for outputting a display updating signal to the screen display part.
Preferably, the display driving module includes: a judgment submodule electrically connected with the central processing module and used for judging whether the elevator landing door is completely closed; the driving submodule is electrically connected with the judging submodule and used for updating the display content of the screen display part; and the return-to-zero submodule is electrically connected with the driving submodule.
Preferably, the elevator monitoring system further comprises a switching power supply which is electrically connected with the elevator landing door and used for supplying power to the monitor and the alarm; the processing section further includes: the clock module, the reset module, the power supply module, the communication module and the acquisition module are electrically connected with the central processing module; the power supply module is electrically connected with the switching power supply.
Compared with the prior art, the utility model provides a lock contact life-span monitoring devices can detect the number of times of closing of elevator layer door and show the life of lock contact directly perceivedly and know whether should deal with this elevator layer door and maintain with the staff. Specifically, the monitor is used for acquiring a signal that the elevator landing door is closed and sending the signal to the processing part in the warning device, the processing part can process the signal and control the screen display part to update the use frequency of the door lock contact, and in addition, when the use frequency of the door lock contact is close to the service life of the door lock contact, the processing part controls the warning part to send out an alarm signal to remind a worker to maintain the elevator landing door of the landing.
The utility model also provides an elevator fault detection system, include: the elevator landing door is arranged at an elevator landing of a floor and is provided with a door lock contact; locate elevator well, as in any one above-mentioned lock contact life-span monitoring devices.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of a first door lock contact life monitoring device provided by the present invention;
fig. 2 is a schematic diagram of the working principle of the monitor provided by the present invention;
fig. 3 is a schematic view of a second door lock contact life monitoring device provided by the present invention;
fig. 4 is a schematic diagram of the working principle of the display driving module provided by the present invention;
wherein the content of the first and second substances,
01-elevator landing door, 011-door body, 1-monitor, 2-alarm, 21-processing part, 211-central processing module, 212-display driving module, 2121-judgment sub-module, 2122-driving sub-module, 2123-zero-return sub-module, 213-alarm driving module, 214-clock module, 215-reset module, 216-power supply module, 217-communication module, 218-acquisition module, 22-screen display part, 23-alarm part and 3-switching power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 4, fig. 1 is a schematic view of a first door lock contact life monitoring device provided in the present invention; fig. 2 is a schematic diagram of the working principle of the monitor provided by the present invention; fig. 3 is a schematic view of a second door lock contact life monitoring device provided by the present invention; fig. 4 is a schematic diagram of the working principle of the display driving module provided by the present invention.
The utility model provides a lock contact life-span monitoring devices, as shown in FIG. 1, this lock contact life-span monitoring devices mainly includes monitor 1 and attention device 2.
The monitor 1 can monitor the opening and closing of the elevator landing door 01, and the door lock contact is triggered to be used once every time the elevator landing door 01 is completely opened and closed, so that the frequency of the opening and closing of the elevator landing door 01 can be detected as the frequency of the door lock contact.
The alarm 2 is electrically connected with the monitor 1, specifically, the alarm 2 comprises a processing part 21, a screen display part 22 and an alarm part 23, wherein the processing part 21 is electrically connected with the monitor 1 to obtain a signal for opening and closing the elevator landing door 01 from the monitor 1; the screen display part 22 is electrically connected with the processing part 21 and is used for displaying the real-time use frequency of the door lock contact, and when the processing part 21 acquires a signal for opening and closing the elevator landing door 01 once, the processing part 21 processes the signal and controls the screen display part 22 to update the real-time use frequency of the door lock contact once; the warning part 23 is electrically connected with the processing part 21, when the real-time use frequency of the door lock contact is close to or even reaches the preset service life, the processing part 21 controls the warning part 23 to give an alarm so that a worker can know to maintain the elevator landing door 01 of the floor; preferably, the screen display part 22 is disposed adjacent to the warning part 23 so that the display content of the screen display part 22 is perceived by human eyes with the attention that the warning part 23 attracts.
It should be noted that the real-time usage frequency of the door lock contact can be represented by the remaining life of the door lock contact or the number of triggered usage times, that is, the screen display unit 22 displays the remaining life and the usage frequency of the door lock contact, so that the worker can know whether the door lock contact should be replaced.
In the first embodiment, considering that the elevator landing door 01 is made of a metal material, the monitor 1 employs an inductive proximity switch, and in order to ensure that the inductive proximity switch can accurately detect the opening and closing actions of the elevator landing door 01, as shown in fig. 2, the inductive proximity switch should be arranged in the opening direction of one door body 011 in the elevator landing door 01, so as to serve as a determination condition for triggering one door lock contact by detecting that the door body 011 is opened once.
Preferably, when the door body 011 is fully opened, the inductive proximity switch is spaced from the door body 011 by a distance d1Preferably set to less than 80% of the theoretical detection distance of the inductive proximity switch, typically 20-30 mm; considering that the lower side of the door body 011 is easily bumped, the height d of the inductive proximity switch2The height of the door body 011 can be determined to be any value between the interval that two thirds of the door body 011 is as high as the whole door body 011, and therefore the inductive proximity switch can always detect the opening and closing action of the elevator landing door 01.
In the second embodiment, the screen display 22 is specifically an LED nixie tube display, and considering that the theoretical service life of the door lock contact can reach ten thousands of times, the LED nixie tube display should be provided with at least six display areas, that is, at least six groups of sequentially adjacent LED nixie tube display areas.
The same way as the above description, the LED nixie tube display screen can display the number of times that the door lock contact has been triggered to be used, and can also display the remaining service life of the door lock contact, and the LED nixie tube display screen can be set according to actual needs.
In the third embodiment, the warning portion 23 is specifically a buzzer and/or an indicator light, and here, taking a form of combining the buzzer and the indicator light as an example, when the number of times of use of the door lock contact approaches the theoretical service life of the door lock contact, for example, 5000 times of service life of the door lock contact still remains, at this time, the buzzer sounds, and the indicator light lights or flashes, so that relevant personnel can know to maintain the door lock contact at the current floor.
The specific value of the determination condition of the remaining life of the alarm signal from the warning unit 23 is determined by the actual conditions such as the work efficiency of the maintenance personnel, and is only an example, and does not represent the specific limitation of the alarm condition in the present application.
In the second and third embodiments, it should be noted that, in the case of a low-rise building such as a small office building, the screen display unit 22 and the warning unit 23 are preferably installed on a wall near a floor doorway so that a crewmember can know whether or not the elevator landing door 01 of the current floor is to be serviced, and can call a crewmember to replace the door lock contact in good time. Of course, for high-rise buildings such as large office buildings, the screen display unit 22 and the warning unit 23 may be disposed on the same circuit board as the processing unit 21, and the whole warning device 2 is installed in the elevator shaft for the daily inspection by the staff who is specially responsible for the maintenance of the elevator fault detection system.
In the fourth embodiment, as shown in fig. 3, the processing unit 21 includes a central processing module 211, an alarm driving module 213 and a display driving module 212, wherein the central processing module 211 is electrically connected to the monitor 1 and is used for processing the signal of the opening and closing operation of the elevator landing door 01 acquired by the monitor 1; the display driving module 212 is electrically connected with the central processing module 211, is also electrically connected with the screen display part 22, and is used for outputting a display updating signal to the screen display part 22, when the monitor 1 monitors the opening and closing actions of the elevator landing door 01, the central processing module 211 controls the screen display part 22 to update the real-time use frequency of the door lock contact; the alarm driving module 213 is electrically connected to the central processing module 211 and also electrically connected to the warning portion 23, and is configured to output an alarm signal to the warning portion 23, and when the usage frequency of the door lock contact is close to the service life of the door lock contact, the central processing module 211 controls the alarm 2 to send the alarm signal through the alarm driving module 213.
It should be noted that, the display driving circuit built in the display driving module 212 and the alarm driving circuit built in the alarm driving module 213 can refer to the prior art, which is not described herein.
In the daily use process of the elevator, a situation that the elevator landing door 01 is not completely closed and is opened again occurs, at this time, the door lock contact is not started, but the monitor 1 obtains a signal that the elevator landing door 01 is opened and closed once, and in order to more accurately record the use frequency of the door lock contact, a fifth embodiment is provided, as shown in fig. 4, the display driving module 212 mainly comprises a judgment sub-module 2121 and a driving sub-module 2122. The judgment submodule 2121 is electrically connected with the central processing module 211 and is used for judging whether the elevator landing door 01 is completely closed; the driving sub-module 2122 is electrically connected to the determining sub-module 2121 and the display unit 22, and is configured to update the display content of the display unit 22.
The specific working mode of the judgment sub-module 2121 is as follows: when the monitor 1 acquires a signal for opening and closing the elevator landing door 01, the judgment sub-module 2121 compares the time interval between two adjacent acquired signals with the complete opening and closing time of the elevator landing door 01, and if the time interval between two adjacent acquired signals is less than the complete opening and closing time of the elevator landing door 01, it indicates that the elevator landing door 01 is not completely closed when the signal is acquired last time, and controls the driving sub-module 2122 not to update the display content of the screen display part 22 or not to send a display update signal to the driving sub-module 2122; otherwise, it means that the signal obtained by the last monitoring belongs to the situation that the elevator landing door 01 is completely closed, the determining submodule 2121 controls the driving submodule 2122 to update the display content of the screen display unit 22 according to the last monitoring signal.
It should be noted that, if the current monitoring signal indicates that the elevator landing door 01 is completely closed, the determination needs to be performed according to the next monitoring signal, and the determination principle is the same as that described above, and is not described herein again.
In a sixth embodiment, as shown in fig. 4, the display driving module 212 further includes a zeroing sub-module 2123, and the zeroing sub-module 2123 is electrically connected to the driving sub-module 2122 and is configured to send a zeroing signal to the driving sub-module 2122 and adjust the display content of the screen display 22 to be the initial preset content. Accordingly, the screen display part 22 should be provided with a return-to-zero switch electrically connected to the return-to-zero submodule 2123, and after the elevator landing door 01 is maintained, the operator triggers the return-to-zero switch to reset and update the display content of the screen display part 22.
It should be noted that, in the fifth and sixth embodiments, the determining submodule 2121 and the zeroing submodule 2123 may also be built in the central processing module 211 in a logic program manner, that is, a logic program having the same function as the determining submodule 2121 and the zeroing submodule 2123 is implanted in the central processing module 211.
In a seventh embodiment, as shown in fig. 3, the door lock contact life monitoring device further comprises a switching power supply 3, wherein the switching power supply 3 is electrically connected with a door lock loop of the elevator landing door 01 and is used for supplying power to the monitor 1 and the alarm 2, and the door lock loop is a circuit electrically connected with the door lock contact; considering that most of the door lock loop is powered by 110VAC, the switching power supply 3 is preferably a switching power supply of 110VAC to 12VDC, where AC denotes alternating current and DC denotes direct current, and further supplies power to the monitor 1 and the alarm 2.
In addition, the processing portion 21 further includes a clock module 214, a reset module 215, a power supply module 216, and an acquisition module 218, all of which are electrically connected to the central processing module 211. Preferably, the central processing module 211 is specifically an AT89C51 single chip microcomputer; the clock module 214 is internally provided with a clock circuit and is used for providing working constant frequency for the single chip microcomputer, and preferably, a crystal oscillator adopts a 12MHz passive crystal oscillator; the reset module 215 is provided with a reset circuit therein and is used for realizing power-on reset and manual reset of the central processing module 211; the power supply module 216 is electrically connected with the switching power supply 3, converts the 12VDC voltage into 5VDC voltage and transmits the 5VDC voltage to the central processing module 211, so as to supply power to the AT89C51 singlechip; the communication module 217 is mainly used for programming and upgrading programs of the single chip microcomputer of the type mentioned above, and preferably, a MAX232 chip is used for realizing 232 level conversion; the collecting module 218 is used to collect and drive and isolate signals of the monitor 1, and in the first embodiment, after the inductive proximity switch obtains a signal of an opening and closing action of the landing door 01 of the elevator, the signal is optically coupled and isolated and input to the central processing module 211.
It should be noted that the structures and functional principles of the clock module 214, the reset module 215, the power supply module 216, the communication module 217 and the acquisition module 218 all belong to conventional means in the art, and are not described herein again.
The utility model provides an elevator fault detection system, which comprises an elevator landing door 01 arranged at an elevator entrance of a floor, wherein the elevator landing door 01 is provided with a door lock contact; the elevator door lock contact life monitoring device is mainly arranged in an elevator shaft, and the specific arrangement mode of the door lock contact life monitoring device refers to the above, which is not described herein again.
It should be noted that the elevator landing door 01, the door lock contacts, and other parts of the elevator fault detection system described above can all be referred to in the prior art, and are not expanded herein.
It is right above the utility model provides an elevator fault detection system and lock contact life-span monitoring devices thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A door lock contact life monitoring device, comprising:
a monitor (1) for monitoring the opening and closing of the elevator landing door (01);
the alarm (2) is electrically connected with the monitor (1);
the warning indicator (2) comprises:
a processing unit (21) electrically connected to the monitor (1);
a screen display part (22) which is electrically connected with the processing part (21) and is used for displaying the service life of the door lock contact;
and a warning part (23) electrically connected with the processing part (21) and used for sending out a warning signal.
2. Door lock contact life monitoring device according to claim 1, characterized in that the monitor (1) is embodied as an inductive proximity switch.
3. The door lock contact life monitoring device according to claim 1, wherein the screen display (22) is embodied as an LED nixie tube display screen.
4. The door lock contact life monitoring device according to claim 2, characterized in that the warning portion (23) is embodied as a buzzer and/or an indicator light.
5. The door lock contact life monitoring device according to any one of claims 1 to 4, wherein the processing portion (21) includes:
a central processing module (211) electrically connected to the monitor (1);
the alarm driving module (213) is electrically connected with the central processing module (211) and is used for sending an alarm signal to the warning part (23);
and the display driving module (212) is electrically connected with the central processing module (211) and is used for outputting a display updating signal to the screen display part (22).
6. The door lock contact life monitoring device of claim 5, wherein the display driver module (212) comprises:
a judgment submodule (2121) electrically connected to the central processing module (211) for judging whether the elevator landing door (01) is completely closed;
a driving submodule (2122) electrically connected to the judging submodule (2121) for updating the display content of the screen display unit (22);
a return-to-zero submodule (2123) electrically connected to the driver submodule (2122).
7. The door lock contact life monitoring device of claim 6,
the elevator safety monitoring system further comprises a switching power supply (3) which is electrically connected with the elevator landing door (01) and used for supplying power to the monitor (1) and the warning indicator (2);
the processing unit (21) further comprises:
a clock module (214), a reset module (215), a power supply module (216), a communication module (217) and an acquisition module (218) which are electrically connected with the central processing module (211);
wherein the power supply module (216) is electrically connected with the switching power supply (3).
8. An elevator fault detection system, comprising:
the elevator landing door (01) is arranged at an elevator landing of a floor, and the elevator landing door (01) is provided with a door lock contact;
door lock contact life monitoring device according to any of claims 1 to 7, provided in an elevator shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020078938.6U CN211871076U (en) | 2020-01-15 | 2020-01-15 | Elevator fault detection system and door lock contact life monitoring device thereof |
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| CN202020078938.6U CN211871076U (en) | 2020-01-15 | 2020-01-15 | Elevator fault detection system and door lock contact life monitoring device thereof |
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| CN211871076U true CN211871076U (en) | 2020-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099473A (en) * | 2020-01-15 | 2020-05-05 | 苏州市职业大学 | Elevator fault detection system and door lock contact life monitoring device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111099473A (en) * | 2020-01-15 | 2020-05-05 | 苏州市职业大学 | Elevator fault detection system and door lock contact life monitoring device thereof |
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