CN-224212211-U - Abnormal starting monitoring device during elevator maintenance

Abstract

The utility model relates to an abnormal starting monitoring device used in elevator maintenance, which comprises a current detection module, a voltage detection module, a level detection module and a control module, wherein the current detection module, the voltage detection module and the level detection module are all connected with the control module, and the current detection module, the voltage detection module and the level detection module are respectively arranged at appointed positions in an elevator starting circuit, namely, the current detection module, the voltage detection module and the level detection module are respectively electrically connected with the elevator starting circuit through the appointed positions in the elevator starting circuit. When elevator maintenance personnel maintain the elevator, although the power-off processing can be carried out, because the elevator is abnormal, the power supply of the elevator is also abnormal, so that abnormal power on of the elevator can possibly occur, current and voltage monitoring can be realized through the current detection module and the voltage detection module, abnormal voltage or current at a specified position of an elevator starting circuit is prevented from being caused to start the elevator abnormally, the stable operation of an elevator maintenance power supply is detected through the level detection module, and the safety of the elevator maintenance personnel is ensured.

Inventors

• FAN YUN

Assignees

• 四川雄俊电梯有限公司

Dates

Publication Date

20260508

Application Date

20250430

Claims (6)

1. 1. The abnormal starting monitoring device for the elevator maintenance is characterized by comprising a current detection module, a voltage detection module, a level detection module and a control module, wherein the current detection module, the voltage detection module and the level detection module are all connected with the control module; The current detection module, the voltage detection module and the level detection module are respectively arranged at appointed positions in the elevator starting circuit, namely, the current detection module, the voltage detection module and the level detection module are respectively electrically connected with the elevator starting circuit through the appointed positions in the elevator starting circuit.
2. 2. The abnormal start-up monitoring device for elevator maintenance according to claim 1, wherein the current detection module is 3UF7933-0BA00-0.
3. 3. The abnormal start monitoring device for elevator maintenance according to claim 1, wherein the voltage detection module is DAQM-4103.
4. 4. The abnormal start monitoring device for elevator maintenance according to claim 1, wherein the level detection module comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first comparator, a second comparator, a third comparator, a first diode, a second diode, a first not gate, a second not gate, a third not gate, an or gate, a first chip, a second chip, and a limit switch; The input end of the first resistor is connected with a voltage input end, the output end of the first resistor is grounded, the adjustable end of the first resistor is connected with the non-inverting input end of the first comparator, the inverting input end of the first comparator is connected with the inverting input end of the third comparator, and the non-inverting input end of the third comparator is grounded through the third resistor; The output end of the first comparator is respectively connected with the non-inverting input end of the second comparator and the inverting input end of the third comparator, and the inverting input end of the second comparator is connected with the adjustable end of the second resistor; The output end of the second comparator is connected with the input end of a first NOT gate, the output end of the first NOT gate is connected with the first input ends of the fourth resistor and the OR gate respectively, the output end of the OR gate is connected with a limit switch, the other end of the limit switch is grounded, the second input end of the OR gate is connected with the output end of the third NOT gate, the other end of the fourth resistor is connected with the anode of the first diode, and the cathode of the first diode is grounded; The port A1 of the first chip is respectively connected with a fifth resistor and a power input end, the port A2 is respectively connected with the fifth resistor and a sixth resistor, the ports A3 and A4 are both connected with the sixth resistor and a capacitor, the other end of the capacitor is grounded, and the port A5 and the port B2 of the second chip are connected with the port A5 of the first chip; The B4 port of the second chip is connected with the first input end of the third NOT gate, the second input end of the third NOT gate is connected with the output end of the second NOT gate and a seventh resistor, the other end of the seventh resistor is connected with the positive electrode of the second diode, the negative electrode of the second diode is grounded, and the input end of the second NOT gate is connected with the output end of the third comparator.
5. 5. The abnormal start monitoring device for elevator maintenance according to claim 4, wherein the first resistor and the second resistor are both sliding resistors, and the first diode and the second diode are both light emitting diodes.
6. 6. The abnormal start monitoring device for elevator maintenance according to claim 1, further comprising an early warning module, wherein the early warning module is connected to the control module.

Description

Abnormal starting monitoring device during elevator maintenance Technical Field The utility model belongs to the technical field of elevator maintenance monitoring, and particularly relates to an abnormal starting monitoring device for elevator maintenance. Background With the development of national economy, the urban process is accelerated, the functions of the building are perfect, the coverage rate of the elevators of the building is higher and higher, and the number of the elevators is increased sharply. Although the technology of elevators is also now advancing, the failure frequency will also show an increasing trend due to the increasing number of elevators. Although some elevators already have a self-repairing function, the elevators with a self-repairing function also have only a few relatively small malfunctions. After the elevator fails, most of the situations at present still need professional elevator maintenance personnel to arrive at the site for manual maintenance. In most elevator maintenance sites, the maintenance personnel need to locate in the elevator shaft, namely, the elevator shaft above or at the bottom of the elevator car for fault detection and fault restoration, and when the elevator maintenance personnel locate in the elevator shaft above or at the bottom of the elevator car, abnormal starting of the elevator needs to be ensured not to occur, because if the elevator is abnormally started, great potential safety hazards exist for the maintenance personnel, and the falling or mechanical compression death of the maintenance personnel can be caused. Therefore, how to monitor the abnormal starting of the elevator when the elevator maintenance personnel are in the elevator shaft to maintain the elevator, ensure that the elevator can not be started abnormally in the time period, ensure the safety of the elevator maintenance personnel, and solve the technical problem in the prior art. Disclosure of utility model The utility model aims to provide an abnormal starting monitoring device for elevator maintenance, which is used for monitoring abnormal starting of an elevator when an elevator maintenance person is in an elevator shaft to maintain the elevator, ensuring that the elevator is not started abnormally in the time period and ensuring the safety of the elevator maintenance person. In order to solve the technical problems, the utility model adopts the following technical scheme: The abnormal starting monitoring device comprises a current detection module, a voltage detection module, a level detection module and a control module, wherein the current detection module, the voltage detection module and the level detection module are all connected with the control module; The current detection module, the voltage detection module and the level detection module are respectively arranged at appointed positions in the elevator starting circuit, namely, the current detection module, the voltage detection module and the level detection module are respectively electrically connected with the elevator starting circuit through the appointed positions in the elevator starting circuit. Preferably, the model of the current detection module is 3UF7933-0BA00-0. Preferably, the voltage detection module is DAQM-4103. Preferably, the level detection unit of the level detection module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first comparator, a second comparator, a third comparator, a first diode, a second diode, a first not gate, a second not gate, a third not gate, an or gate, a first chip, a second chip, and a limit switch; The input end of the first resistor is connected with a voltage input end, the output end of the first resistor is grounded, the adjustable end of the first resistor is connected with the non-inverting input end of the first comparator, the inverting input end of the first comparator is connected with the inverting input end of the third comparator, and the non-inverting input end of the third comparator is grounded through the third resistor; The output end of the first comparator is respectively connected with the non-inverting input end of the second comparator and the inverting input end of the third comparator, and the inverting input end of the second comparator is connected with the adjustable end of the second resistor; The output end of the second comparator is connected with the input end of a first NOT gate, the output end of the first NOT gate is connected with the first input ends of the fourth resistor and the OR gate respectively, the output end of the OR gate is connected with a limit switch, the other end of the limit switch is grounded, the second input end of the OR gate is connected with the output end of the third NOT gate, the other end of the fourth resistor is connected with the anode of the first diode, and the cathode of the first diode is grounded; The port