CN210133786U - Portable elevator protection switch and safety loop state detection device - Google Patents
Portable elevator protection switch and safety loop state detection device Download PDFInfo
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- CN210133786U CN210133786U CN201920758368.2U CN201920758368U CN210133786U CN 210133786 U CN210133786 U CN 210133786U CN 201920758368 U CN201920758368 U CN 201920758368U CN 210133786 U CN210133786 U CN 210133786U
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Abstract
The utility model discloses a portable elevator protection switch and safety circuit state detection device, the device includes main control end and handheld mobile terminal, can be with the safety circuit in the main control end installation wiring to the elevator switch board in the middle of, real-time detection elevator safety circuit signal, and whether supplementary judgement elevator safety switch breaks down, and give the personnel of on-the-spot implementation inspection with the testing result with the radio signal form, construction or maintenance personnel's handheld mobile terminal, with signal and the automatic recording that receive safety circuit state detection device are carried out in the realization, the process of elevator inspection has greatly been simplified, the efficiency of elevator inspection has been improved, the inspection risk at dangerous position has effectively been reduced, and because the unfavorable potential safety hazard that causes of cooperation in the testing process.
Description
Technical Field
The utility model relates to an elevator inspection detects technical field, concretely relates to portable elevator protection switch and safety circuit state detection device.
Background
With the continuous deepening of the urbanization construction and the continuous expansion and promotion of the infrastructure scale in China, the elevator holding amount keeps rapid and steady growth, and the newly increased elevators inevitably increase the requirements of elevator safety inspection and detection. Meanwhile, elevator safety accidents frequently occurring in recent years also greatly promote the attention of governments and society on elevator safety, and a great deal of work is done in the aspects of actively eliminating hidden dangers and ensuring the safe operation of the elevator.
The current method for testing elevator protection switches is generally as follows: in the running process of the elevator, the corresponding protection switch is manually operated, the running state of the elevator and the suction state of the contactor of the safety loop of the elevator are observed, and whether the function of the protection switch of the elevator is normal or not is judged. In addition, many elevator manufacturers also have monitoring equipment with the following functions for the safety circuit of elevator operation at present: when the elevator is in normal operation, no fault signal is sent, and when the safety circuit of the elevator is in a trouble of stopping the elevator due to system fault or any switch in the circuit acts, maintenance personnel nearby the site can be contacted for elevator recovery at the first time. When the above functions of the monitoring equipment are used for elevator daily maintenance and special equipment inspection, the functions of the protection switch need to be tested under the condition of elevator operation, false alarm faults are easily caused, unnecessary troubles are caused for daily maintenance and special equipment inspection and detection, and multiple persons are needed to cooperate and complete. Moreover, when the power-off test is carried out on the running elevator, certain impact can be caused on an elevator brake, a guide rail guide shoe, a car and the like, and the whole elevator can be influenced by the frequent detection of the switches one by one. In addition, for the protection switches such as safety tongs and the like which are not easy to contact at the installation position, because the protection switches are special in position and are usually installed at the bottom of the elevator car, the difficulty of manually triggering the protection switches on the running elevator is high during routine inspection, and the risk is extremely high. Finally, a few elevator maintenance practitioners intentionally simulate the condition of uncooperative inspection such as the action state of a protection switch during field inspection in order to pass the inspection, so that the inspection personnel can not effectively know the actual condition of the elevator, and a large potential safety hazard is left for the safe operation of the elevator.
Therefore, how to improve the safety of elevator inspection and detection and improve inspection and detection efficiency becomes important for promoting the development of special equipment inspection and detection industry.
Disclosure of Invention
The utility model aims at providing a portable elevator protection switch and safety circuit state detection device to solve the problem that the mode security of tradition detection elevator protection switch and safety circuit state is low and inspection efficiency is low.
The utility model discloses the technical scheme who adopts as follows: a portable elevator protection switch and safety loop state detection device includes: the mobile terminal comprises a main control end and a handheld mobile terminal.
The main control end comprises: the device comprises a main control module, a state signal detection and processing module and a main control end wireless communication module. The main control module is respectively electrically connected with the state signal detection and processing module and the main control end wireless communication module, and is used for generally controlling the coordination operation among the modules of the main control end, providing a power supply for the main control end and providing circuit protection for the modules in the main control end. The state signal detection and processing module is used for accessing a safety loop of an elevator, detecting an electrifying signal of the safety loop, converting the electrifying signal into an instruction signal representing the state of the safety loop, and sending the instruction signal to the main control end wireless communication module after state logic control.
The hand-held mobile terminal includes: the mobile terminal comprises a handheld mobile terminal wireless communication module, a data processing and storing module and an interactive display module. The handheld mobile terminal wireless communication module is in communication connection with the main control terminal wireless communication module and is used for receiving the instruction signal sent by the main control terminal wireless communication module. The data processing and storing module is electrically connected with the handheld mobile terminal wireless communication module and used for receiving the instruction signal, storing the instruction signal and processing the instruction signal into a corresponding state signal value. And the interactive display module is electrically connected with the data processing and storing module and is used for displaying the state signal value.
Optionally, the state signal detecting and processing module is provided with a detection interface, and the detection interface is divided into different voltage classes according to different voltage forms of the safety loop and different principles of detecting the voltage signal.
Optionally, the voltage levels of the detection interface include 12-24V, 110V and 220V.
Optionally, the master control terminal wireless communication module and the handheld mobile terminal wireless communication module both include a wireless signal transmission module and a mobile internet communication module.
Optionally, the wireless signal transmission module is a LoRa wireless module, a ZigBee wireless module, an SPI radio frequency module, a wireless switching value transmission module, or an antenna, and the mobile internet communication module is a 4G/GPRS/NB-IoT, wifi, or DTU.
Optionally, the interactive display module includes a display screen and an input device, and the display screen is used for displaying a switch action and an action time; the input device is electrically connected with the display screen and is used for sending instructions to the main control end and adjusting or modifying parameters or modes of an operating system of the display screen.
Optionally, the display screen is provided with one or more of an indicator light, a buzzer and a loudspeaker.
Optionally, a micro control unit is built in the state signal detecting and processing module, and the micro control unit determines whether the corresponding safety circuit energizing signal is a circuit disconnection according to an internal logic control.
Optionally, the micro control unit has a multi-channel I/O port, and the multi-channel I/O port is respectively used for accessing different safety loop voltage signals.
Optionally, the I/O port converts the detected safety loop voltage signal into a high-low logic level through a voltage detection circuit, corresponds to an on-off signal, and transmits the on-off signal to the micro control unit; the micro control unit encodes the on-off signal and the on-off action moment data, outputs the on-off signal and the on-off action moment data to a radio frequency chip through an internal serial port to be modulated into a high-frequency signal, and wirelessly transmits the high-frequency signal through the main control end wireless communication module
The utility model has the advantages as follows: the utility model discloses a portable elevator protection switch and safety circuit state detection device includes main control end and handheld mobile terminal, can be with the safety circuit of main control end installation wiring in the elevator control cabinet in the middle of, real-time detection elevator safety circuit signal, and whether supplementary judgement elevator safety switch breaks down, and send the personnel of on-the-spot implementation inspection, construction or maintenance personal's handheld mobile terminal with the testing result with the radio signal form, in order to realize receiving safety circuit state detection device's signal and carry out automatic recording. Through the utility model discloses a portable elevator protection switch and safety circuit state detection device, can make on-the-spot inspection personnel single at the well, the sedan-chair top, during the safety switch that position operations such as pit and car correspond, can directly judge the system state, supplementary inspection measurement personnel judge whether the elevator state meets the requirements, whether the elevator maintenance personnel of being convenient for inspect the corresponding switch of elevator exist and burn out, adhesion or the condition such as artificial short circuit, know the safety state of system fast, simplify elevator inspection process, improve elevator inspection efficiency, effectively reduce the inspection risk at dangerous position and because the unfavorable potential safety hazard that causes of cooperation in the inspection process.
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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model provides a pair of portable elevator protection switch and safety circuit state detection device's schematic diagram.
Fig. 2 is a safety state signal detection interface circuit.
Illustration of the drawings: 1-a main control end; 2-a handheld mobile terminal; 11-a main control module; 12-a status signal detection and processing module; 13-a main control end wireless communication module; 21-hand-held mobile terminal wireless communication module; 22-data processing and storage module; 23-interactive display module.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, for the embodiment of the utility model provides a portable elevator protection switch and safety circuit state detection device, the device are used for installing inside elevator safety circuit, through real-time detection elevator safety circuit voltage state, judge whether elevator safety switch has the phenomenon of burning out, adhesion or being artificial short circuit, supplementary inspection is to the inspection project of safety protection switch.
The device comprises a main control end 1 and a handheld mobile terminal 2, wherein the main control end 1 and the handheld mobile terminal 2 are powered by an internal power supply and can be externally connected with a mobile power supply with a common standard 5V input voltage, and the main control end 1 and the handheld mobile terminal 2 have high integration level and are convenient for field engineering personnel to carry.
The main control end 1 includes: a main control module 11, a status signal detecting and processing module 12 and a main control end wireless communication module 13. The main control module 11 is electrically connected to the status signal detection and processing module 12 and the main control wireless communication module 13, and the main control module 11 is configured to generally control the coordination operation among the modules of the main control terminal 1, provide power for the main control terminal 1, and provide circuit protection for the modules inside the main control terminal 1. The status signal detecting and processing module 12 is provided with a detecting interface, and the detecting interface is divided into different voltage levels, such as 12-24V, 110V, 220V and the like, according to different safety loop voltage forms and different detecting voltage signal principles. During detection, a detection interface of the voltage grade corresponding to the elevator safety loop can be selected and accessed into the safety loop of the elevator control cabinet to be detected, 220V voltage is collected in real time by taking the safety loop of alternating current 220V as an example, and the power-on and power-off states of the elevator safety loop are detected.
As shown in fig. 2, the input in of the interface circuit for detecting the safety state signal is connected to the safety loop of various elevators to detect the state signal of the safety loop in real time. The voltage detection is performed by the safety state signal detection interface circuit, and the voltage is converted into a corresponding on-off logic signal, so as to obtain a corresponding voltage signal out as an input value of the state signal detection and processing module 12, and the voltage value of the specified voltage level and the high-low level value corresponding to the grounding signal are used for respectively representing the on-off of the safety loop through level logic control. The voltage detection circuit can detect the voltage of 220VAC and 24-120 VDC. Meanwhile, the electric isolation is ensured through the photoelectric switch.
The state signal detection and processing module 12 is used for accessing a safety loop of the elevator, detecting an electrifying signal of the safety loop, converting the electrifying signal into an instruction signal representing the state of the safety loop, and after state logic control, packing data at the moment of switch triggering together, and sending the instruction signal to the main control end wireless communication module 13.
In this embodiment, the state logic of the apparatus is: when the status signal detecting and processing module 12 detects that the safety circuit has voltage, i.e. the safety circuit is in a conducting state, it sends a conducting command signal or does not send a signal. When the status signal detecting and processing module 12 does not detect that the safety loop has a voltage signal, it sends a command signal of "switch action or loop disconnection". The main control end wireless communication module 13 is used for wireless data communication between the main control end 1 and the handheld mobile terminal 2.
The hand-held mobile terminal 2 includes: a hand-held mobile terminal wireless communication module 21, a data processing and storing module 22 and an interactive display module 23. The handheld mobile terminal wireless communication module 21 is in communication connection with the main control terminal wireless communication module 13, and is configured to receive an instruction signal sent by the main control terminal wireless communication module 13.
Specifically, main control end wireless communication module 13 and handheld mobile terminal wireless communication module 21 all include wireless signal transmission module and mobile internet communication module, correspond handheld mobile terminal 2's special receiving arrangement and the special APP of mobile phone respectively to support and receive and operate simultaneously, accessible main control end 1 and handheld mobile terminal 2 carry out the selection of two kinds of wireless communication modes.
When the power of the module is selected to meet the field requirement, the wireless signal transmission module can be a LoRa wireless module, a ZigBee wireless module, a SPI radio frequency module, a wireless switching value transmission module or an antenna and the like, and the mobile internet communication module can be 4G/GPRS/NB-IoT, wifi or DTU and the like.
The data processing and storing module 22 is electrically connected to the handheld mobile terminal wireless communication module 21, and is configured to receive the instruction signal, store and process the instruction signal into a corresponding state signal value, and simultaneously perform local device storage or upload data. The interaction display module 23 is electrically connected to the data processing and storage module 22, and is configured to display the status signal value and complete operations such as reading and entering of information interaction performed by the detection personnel at the handheld mobile terminal 2.
The interactive display module 23 may specifically include a display screen and an input device, where the display screen is used to display a switch action and an action time; the input device is electrically connected with the display screen and is used for sending instructions to the main control terminal 1 and adjusting or modifying parameters or modes of the display screen operating system. The operating system is an open operating system, and interfaces of other detection signal receiving and recording or other functions are reserved, so that the operating system can be upgraded in real time as required. The display screen can also be provided with one or more in pilot lamp, bee calling organ and the speaker for indicate engineering personnel, the at utmost knows the elevator current state for inspection measurement personnel and provides convenience.
Further, the status signal detecting and processing module 12 may have a micro control unit built therein, and the micro control unit determines whether the corresponding safety circuit power-on signal is a circuit disconnection according to logic control set inside. The micro control unit is provided with a multi-channel I/O port, and the multi-channel I/O port is respectively used for accessing different safety loop voltage signals. The I/O port converts the detected voltage signal of the safety loop into high and low logic level through a voltage detection circuit, corresponds to an on-off signal and transmits the on-off signal to the micro control unit; the micro control unit encodes the on/off signals and the switching action time data, and outputs the on/off signals and the switching action time data to the radio frequency chip through the internal serial port to be modulated into high-frequency signals so as to be wirelessly transmitted through the main control end wireless communication module 13.
The utility model discloses a portable elevator protection switch and safety circuit state detection device's concrete use as follows: firstly, a detection interface is accessed into a safety loop of an elevator, after hardware wiring is completed, a main control end 1 starts to monitor the state of the safety loop of the elevator in real time, and sends the running state of the elevator to a handheld mobile terminal 2. And checking the working state of the handheld mobile terminal 2, and detecting the safety switch of the checked elevator in the non-running state after confirming that the wireless communication is normal. The utility model discloses can realize one-man operation completely to can detect work at different positions such as computer lab, sedan-chair top and pit, know elevator safety circuit's operating condition in real time, simplify safety switch detection achievement, improve the security of inspection process.
After the interactive display module 23 of the handheld mobile terminal 2 receives the state detection signal sent by the main control terminal 1, the specific information receiving interactive mode can be selected differently according to different occasions or different requirements. For example, the prompt can be given to the engineering personnel in a mode of text display, an indicator light, a buzzer, voice or the like, and convenience is provided for the engineering inspection personnel to know the current state of the elevator to the maximum extent. For example, on a ladder, when engineering inspectors do not operate conveniently with both hands, a buzzing or voice mode of the handheld mobile terminal 2 can be applied, after the elevator protection switch is triggered, a disconnection signal detected and sent by the main control terminal 1 is received, and the handheld mobile terminal 2 has a buzzing sound or voice prompt to prompt 'switching action or safety circuit disconnection'.
The operation interface of the handheld mobile terminal 2 (including a special mobile device or a professional APP of a mobile phone) can list different types of elevator information and all safety switch inspection items in different inspection areas. Such as emergency stop buttons, speed limiter switches, uplink overspeed protection switches, turning hand wheel switches and the like in a machine room. Or the switch information of the top, the bottom, the pit and the like of the car. When detecting items, according to the information of the given corresponding type of elevator, when triggering the corresponding protection switches one by one and receiving the state detection signal, the system records the test result. The whole state of the current elevator can be mastered more intuitively while the inspection items are not omitted. When the method is applied to the escalator or the moving sidewalk, the type of the escalator is selected, all items to be checked of the escalator or the moving sidewalk appear, and corresponding switch items are tested and detected and data are input in the same way. The state detection signal data received by the handheld mobile terminal 2 from the main control terminal 1 may specifically include action state data and action time and date data, and the data are received and stored together.
The utility model discloses a portable elevator protection switch and safety circuit state detection device are suitable for the elevator type can include: traction drives passengers, freight elevators, debris elevators, escalators or moving walkways, hydraulic elevators, etc. When the device design meets the explosion-proof environment standard, the device can be used for the inspection and detection of the explosion-proof elevator under the covered explosion-proof environment; the design may have some electromagnetic compatibility (EMC) capability.
Through the utility model discloses a portable elevator protection switch and safety circuit state detection device receive corresponding switch action state to the vertical ladder is the example: the safety circuit can comprise emergency stop buttons, safety window switches, safety tongs switches, an uplink overspeed protection switch, a speed limiter switch, an upper limit switch, a lower limit switch, a buffer switch, a turning hand wheel switch, a speed limiter rope breaking protection switch and the like at all positions in the elevator, and also comprises various switches included in other types of elevator safety circuits, and the state is represented by the on-off state of the safety circuit.
To sum up, the utility model discloses a portable elevator protection switch and safety circuit state detection device, can test all kinds of elevator safety switch performance state of required inspection directly perceivedly for under the circumstances that does not need many people to cooperate, realize single in the computer lab, the sedan-chair top, the inspection detection achievement to the safety switch project can all be accomplished to different positions such as pit, the break-make state of elevator safety circuit can be observed at any time simultaneously, elevator inspection's process has greatly been simplified, elevator inspection's efficiency has been improved, the inspection risk at dangerous position has effectively been reduced, and because the unfavorable potential safety hazard that causes of cooperation in the testing process.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a portable elevator protection switch and safety circuit state detection device which characterized in that: the system comprises a main control end (1) and a handheld mobile terminal (2);
the main control end (1) comprises: the device comprises a main control module (11), a state signal detection and processing module (12) and a main control end wireless communication module (13);
the main control module (11) is electrically connected with the state signal detection and processing module (12) and the main control end wireless communication module (13) respectively, and is used for generally controlling the coordinated operation among the modules of the main control end (1), providing a power supply for the main control end (1), and providing circuit protection for the modules in the main control end (1); the state signal detection and processing module (12) is used for accessing a safety loop of an elevator, detecting an electrifying signal of the safety loop, converting the electrifying signal into an instruction signal representing the state of the safety loop, and sending the instruction signal to the main control end wireless communication module (13) after state logic control;
the hand-held mobile terminal (2) comprises: the mobile terminal comprises a handheld mobile terminal wireless communication module (21), a data processing and storing module (22) and an interactive display module (23);
the handheld mobile terminal wireless communication module (21) is in communication connection with the main control end wireless communication module (13) and is used for receiving an instruction signal sent by the main control end wireless communication module (13); the data processing and storing module (22) is electrically connected with the handheld mobile terminal wireless communication module (21) and is used for receiving the instruction signal, storing the instruction signal and processing the instruction signal into a corresponding state signal value; the interaction display module (23) is electrically connected with the data processing and storage module (22) and is used for displaying the state signal value.
2. The portable elevator protection switch and safety circuit state detection device according to claim 1, wherein: the state signal detection and processing module (12) is provided with a detection interface, and the detection interface is divided into different voltage grades according to different safety loop voltage forms and different detection voltage signal principles.
3. The portable elevator protection switch and safety circuit state detection device according to claim 2, wherein: the voltage levels of the detection interface include 12-24V, 110V and 220V.
4. The portable elevator protection switch and safety circuit state detection device according to claim 1, wherein: the main control end wireless communication module (13) and the handheld mobile terminal wireless communication module (21) both comprise a wireless signal transmission module and a mobile internet communication module.
5. The portable elevator protection switch and safety circuit state detection device of claim 4, wherein: the wireless signal transmission module is a LoRa wireless module, a ZigBee wireless module, an SPI radio frequency module, a wireless switching value transmission module or an antenna, and the mobile internet communication module is a 4G/GPRS/NB-IoT, wifi or DTU.
6. The portable elevator protection switch and safety circuit state detection device according to claim 1, wherein: the interactive display module (23) comprises a display screen and input equipment, wherein the display screen is used for displaying switch actions and action time; the input device is electrically connected with the display screen and is used for sending instructions to the main control end (1) and adjusting or modifying parameters or modes of an operating system of the display screen.
7. The portable elevator protection switch and safety circuit state detection device of claim 6, wherein: the display screen is provided with one or more of an indicator light, a buzzer and a loudspeaker.
8. The portable elevator protection switch and safety circuit state detection device according to claim 1, wherein: the state signal detection and processing module (12) is internally provided with a micro control unit, and the micro control unit judges whether the corresponding safety loop electrifying signal is loop disconnection according to logic control arranged inside.
9. The portable elevator protection switch and safety circuit state detection device of claim 8, wherein: the micro control unit is provided with a multi-channel I/O port, and the multi-channel I/O port is respectively used for accessing different safety loop voltage signals.
10. The portable elevator protection switch and safety circuit state detection device of claim 9, wherein: the I/O port converts the detected voltage signal of the safety loop into high and low logic levels through a voltage detection circuit, corresponds to an on-off signal and transmits the on-off signal to the micro control unit; and the micro control unit encodes the on-off signal and the switching action moment data, and outputs the on-off signal and the switching action moment data to a radio frequency chip through an internal serial port to be modulated into a high-frequency signal so as to be wirelessly transmitted through a main control end wireless communication module (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758368.2U CN210133786U (en) | 2019-05-23 | 2019-05-23 | Portable elevator protection switch and safety loop state detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758368.2U CN210133786U (en) | 2019-05-23 | 2019-05-23 | Portable elevator protection switch and safety loop state detection device |
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| CN210133786U true CN210133786U (en) | 2020-03-10 |
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| CN201920758368.2U Active CN210133786U (en) | 2019-05-23 | 2019-05-23 | Portable elevator protection switch and safety loop state detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104893A (en) * | 2021-09-09 | 2022-03-01 | 广东省特种设备检测研究院珠海检测院 | Method and system for detecting fault protection function of elevator brake |
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2019
- 2019-05-23 CN CN201920758368.2U patent/CN210133786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104893A (en) * | 2021-09-09 | 2022-03-01 | 广东省特种设备检测研究院珠海检测院 | Method and system for detecting fault protection function of elevator brake |
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