CN211141199U

CN211141199U - Elevator remote rescue device

Info

Publication number: CN211141199U
Application number: CN201921896750.6U
Authority: CN
Inventors: 张岳松; 王宏伟; 张晓明
Original assignee: Liaoning Shituo Testing Service Co ltd
Current assignee: Liaoning Shituo Testing Service Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-31
Anticipated expiration: 2029-11-06

Abstract

The utility model provides a long-range rescue device of elevator, includes elevator emergency rescue device, first camera, second camera, third camera, wireless data collection station and remote server. The first camera is arranged at the top outside the elevator car and used for monitoring the closing condition of a landing door above the car top position and the accident condition of the car top in real time; the second camera is arranged at the outer bottom of the elevator car and used for monitoring the closing condition and pit state of a lower layer door at the car bottom in real time; the third camera is arranged in the elevator car and monitors the state of people in the elevator car and the closing state of the car door in real time; the elevator control system can monitor the occurrence of accidents at the top and the bottom of the elevator car and the closing state of the elevator door of each floor near the elevator in real time, and when the elevator fails, an independent direct-current power supply PWM inverter is adopted instead of an internal frequency converter of the elevator, so that the operation of the elevator in the failure can be more reliably carried out; the remote server can remotely check the field situation in real time, so that remote rescue operation can be realized.

Description

Elevator remote rescue device

Technical Field

The utility model relates to an elevator safety control technical field, in particular to long-range rescue device of elevator.

Background

The elevator safety is a problem needing to be considered emphatically in an elevator system, and in the prior art, an emergency rescue device of an elevator is used for operating the elevator to enter a flat floor and open an elevator door under the condition that a main power supply of the elevator is powered off when the elevator has an accidental fault, so that people in the elevator can go out of the elevator safely.

Chinese patent publication No. CN 208345518U discloses an elevator emergency device; chinese patent publication No. CN 207943707U discloses an elevator emergency device, and chinese patent publication No. CN 110092259 a discloses an elevator emergency rescue method and device.

Although there are many elevator emergency devices disclosed and in use in the prior art, the following disadvantages still exist:

(1) whether personnel fall off or accidents happen at the top outside the lift car and the pit bottom cannot be monitored, and correct rescue measures cannot be taken at the first time;

(2) when the elevator fails, whether the elevator doors of all floors near the elevator are in an unclosed dangerous condition or not can not be checked at the first time;

(3) although the existing elevator emergency device provides a set of independent power supply and controller used in fault, a driver for driving a traction motor in fault is also a frequency converter in a control system used in normal use of the elevator, the existing design is only suitable for fault shutdown of the elevator, and if the fault of the frequency converter occurs simultaneously in fault, the existing elevator emergency device cannot play a role in timely rescue.

Disclosure of Invention

In order to solve the problems in the background art, the utility model provides an elevator remote rescue device which (1) can monitor whether a person falls off or an accident happens at the top outside a car and at the bottom of a pit or not and the closing state of the elevator door of each floor near the elevator in real time, and can take correct rescue measures through an elevator emergency rescue device at the first time; (2) when the elevator fails, the frequency converter in the elevator is not adopted, the independent direct current supply PWM inverter is adopted, the standby direct current supply is directly utilized to drive the traction motor, and the operation of the elevator in the failure can be more reliably carried out; (3) the remote server can remotely check the field situation in real time, so that remote rescue operation can be realized.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a long-range rescue device of elevator, includes elevator emergency rescue device, first camera, second camera, third camera, wireless data collection station and remote server.

The first camera is arranged at the top outside the elevator car and used for monitoring the closing condition of a landing door above the car top position and the accident condition of the car top in real time; the second camera is arranged at the outer bottom of the elevator car and used for monitoring the closing condition and pit state of a lower layer door at the car bottom in real time; the third camera is arranged in the elevator car and monitors the state of people in the elevator car and the closing state of the car door in real time; the first camera, the second camera and the third camera are connected with the wireless data acquisition unit and are connected with the wireless network and the remote server through the wireless data acquisition unit.

The elevator emergency rescue device comprises a main controller, a storage battery system, a PWM inverter, a multi-path transformer, an isolation relay and a wireless module; the storage battery system provides direct current power for the main controller, the PWM inverter and the multi-path transformer, the PWM inverter is connected to a traction motor of the elevator, the output end of the multi-path transformer is connected to an emergency power supply terminal and an elevator brake, the output end of the main controller is connected with the relay, the output end of the main controller controls the output end of the PWM inverter, the output end of the emergency power supply, the output end of the elevator brake and the output end of the door motor through the relay, and the input end of the main controller is also connected with a linkage point, a door area contact, a door opening.

The main controller is connected with the wireless module through a serial port and is connected with the wireless network and the remote server through the wireless module.

The emergency power supply terminal provides a fault emergency power supply for the wireless data acquisition device, the first camera, the second camera and the third camera.

Further, the PWM inverter is a PWM inverter outputting AC380V and is used for driving an elevator AC380V traction motor.

Further, the primary side input AC50V of the multi-path transformer, the secondary side output respectively includes: the AC380V is used for supplying power to the emergency power supply cabinet; the AC260V is used for coil power supply of elevator band-type brakes, door motors and relays.

Further, the main controller is a P L C controller or a singlechip controller.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can monitor whether people fall off or accidents happen at the top and the bottom of the lift car and the closing state of the lift door of each floor near the lift in real time, and can take correct rescue measures through the lift emergency rescue device at the first time;

2. when the elevator breaks down, the frequency converter in the elevator is not adopted, the independent direct current supply PWM inverter is adopted, the standby direct current supply is directly utilized to drive the traction motor, and the operation of the elevator in the failure can be more reliably carried out.

3. The remote server can remotely check the field situation in real time, so that remote rescue operation can be realized.

Drawings

Fig. 1 is a schematic view of the overall structure of an elevator remote rescue device of the present invention;

fig. 2 is a schematic layout diagram of the cameras in the elevator;

fig. 3 is a block diagram of a circuit structure of the elevator emergency rescue device of the present invention;

fig. 4 is a diagram of a circuit design embodiment of the elevator emergency rescue device of the present invention;

in the figure: 1-elevator car 2-first camera 3-third camera 4-second camera.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-2, an elevator remote rescue device comprises an elevator emergency rescue device, a first camera 2 (car top camera), a second camera 4 (car bottom camera), a third camera 3 (car camera), a wireless data collector and a remote server. The first camera 2, the second camera 4 and the third camera 3 are connected with a wireless data acquisition unit and connected with a wireless network and a remote server through the wireless data acquisition unit.

As shown in fig. 2, the first camera 2 is arranged at the top outside the elevator car 1 and used for monitoring the closing condition of the landing door above the car top position and the accident condition of the car top in real time; the second camera 4 is arranged at the outer bottom of the elevator car 1 and used for monitoring the closing condition and pit state of a lower-layer door at the car bottom in real time; the third camera 3 is arranged in the elevator car 1 and monitors the state of people in the car and the closing state of the car door in real time.

As shown in fig. 3, the elevator emergency rescue device comprises a main controller, a battery system, a PWM inverter, a multi-way transformer, an isolation relay and a wireless module; the storage battery system provides a direct-current power supply for the main controller, the PWM inverter and the multi-path transformer, the PWM inverter is connected to a traction motor of the elevator, the output end of the multi-path transformer is connected to an emergency power supply terminal and an elevator brake, the output end of the main controller is connected with the relay, and the output of the PWM inverter, the emergency power supply, the elevator brake and the door motor is controlled through the relay; the input end of the main controller is also connected with the interlocking point, the door zone contact, the door opening contact and the safety loop contact of the elevator through an isolation relay. The main controller is connected with the wireless module through a serial port and is connected with the wireless network and the remote server through the wireless module. The emergency power supply terminal provides a fault emergency power supply for the wireless data acquisition device, the first camera, the second camera and the third camera.

The PWM inverter is a PWM inverter outputting AC380V and is used for driving an elevator AC380V traction motor.

The primary side input AC50V of the multi-path transformer, the secondary side output respectively includes: the AC380V is used for supplying power to the emergency power supply cabinet; the AC260V is used for supplying power to the coils of the elevator brake and the relay.

The main controller is a P L C controller or a singlechip controller.

Fig. 4 is an electrical design example diagram of an elevator emergency rescue device, in the diagram, ZK1 is a main controller, PWM-NB is a PWM inverter, B1 is a multi-way transformer, relays K1, K2, K3, KK and JN (1-3) are intermediate relays output by the main controller, KA and KC are control relays used in an intermediate circuit, B0, B1 and B2 are direct current output terminals of a battery system, U2, V2 and W2 are traction motor output terminals of an elevator, U3 and V3 are 380V alternating current output terminals for connecting the upper end of an elevator emergency power cabinet, 1 and 2 contacts are used for connecting an elevator band-type brake, 3-8 are elevator door machine terminals, 19 and 20 terminals are contacts of an elevator door interlocking circuit, 13-16 contacts are elevator safety circuit contacts, and 9-12 are door zone signal contacts. The connection mode of fig. 4 is the same as that of fig. 3, and the connection relationship of fig. 4 will not be described repeatedly, and the element identifiers in the figure are all electrical conventional design identifiers, which can be recognized by those skilled in the electrical field.

The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the protection scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.

Claims

1. An elevator remote rescue device is characterized by comprising an elevator emergency rescue device, a first camera, a second camera, a third camera, a wireless data acquisition unit and a remote server;

the first camera is arranged at the top outside the elevator car and used for monitoring the closing condition of a landing door above the car top position and the accident condition of the car top in real time; the second camera is arranged at the outer bottom of the elevator car and used for monitoring the closing condition and pit state of a lower layer door at the car bottom in real time; the third camera is arranged in the elevator car and monitors the state of people in the elevator car and the closing state of the car door in real time; the first camera, the second camera and the third camera are connected with the wireless data acquisition unit and are connected with the wireless network and the remote server through the wireless data acquisition unit;

the elevator emergency rescue device comprises a main controller, a storage battery system, a PWM inverter, a multi-path transformer, an isolation relay and a wireless module; the storage battery system provides direct-current power for the main controller, the PWM inverter and the multi-path transformer, the PWM inverter is connected to a traction motor of the elevator, the output end of the multi-path transformer is connected to an emergency power supply terminal, an elevator band-type brake and a door opening machine, the output end of the main controller is connected with the relay, and the output of the PWM inverter, the emergency power supply and the elevator band-type brake is controlled through the relay; the input end of the main controller is also connected with a linkage point of an elevator door, a door area contact and a safety loop contact of the elevator through an isolation relay;

the main controller is connected with the wireless module through a serial port and is connected with the wireless network and the remote server through the wireless module;

2. The elevator remote rescue apparatus according to claim 1, wherein the PWM inverter is a PWM inverter outputting AC380V for driving an elevator AC380V traction motor.

3. An elevator remote rescue apparatus as claimed in claim 1, wherein the multi-path transformer has a primary side input AC50V and a secondary side output comprising: the AC380V is used for supplying power to the emergency power supply cabinet; the AC260V is used for supplying power to the coils of the elevator brake and the relay.

4. The elevator remote rescue apparatus according to claim 1, wherein the main controller is a P L C controller or a single chip microcomputer controller.