KR101996496B1 - Intrusion management system for car of elevator - Google Patents

Abstract

The present invention includes a check signal detection unit for transmitting data to the driving panel in the car to detect a signal generated from a button included in the manual driving panel in the car; A moving distance data receiving unit received from the control panel and receiving data on the descending distance of the elevator car so that the upper part of the elevator car can be located on the current floor called by the operator; A stop distance calculator for converting the number of rotations of the sheave included in the hoist in proportion to the data received by the moving distance data receiver; A door open detection unit for generating a signal so that an operator can open the door of the elevator car by using the door key when the elevator car descends and stops by an appropriate distance by the stop distance calculator; By including a hand / automatic operation switching unit for transmitting data to the control panel to switch the operation of the elevator car manually or automatically,
Press the upper entry switch included in the platform operation panel and input the distance the elevator car wants to move, but it automatically descends by counting the elevator movement distance without inputting the correct distance so that the operator can safely enter the upper part of the elevator car. The present invention relates to an elevator car upper entrance driving system capable of achieving the effect.

Description

INTELLION MANAGEMENT SYSTEM FOR CAR OF ELEVATOR}

The present invention relates to an elevator car entry driving system, which will be described in more detail. The elevator car stops automatically after moving at a low speed manual driving speed from the current floor to a good position to ride on the car for maintenance and inspection of the elevator. The present invention relates to an elevator car upper entrance driving system which makes it easy for an inspector, repairer or inspector to enter the upper part of the car.

As is well known, elevators are installed inside the building to facilitate the movement of passengers between floors.

Figure 1a is a conceptual diagram schematically showing the structure of such a platform. Referring to Figure 1a, in order to install an elevator, first, a predetermined space is formed vertically in the building, the platform to form a platform on each floor so as to be connected to the platform, the platform door to separate the platform and platform (D) Is installed, the drive unit (A) is installed on the upper or lower portion of the hoistway to generate rotational power by an external power source, the car (CAR) to move up / down in accordance with the drive of the drive unit, to board the car The platform is formed in each floor and the landing door (D) is installed in the landing.

The structure of the landing door (D) in the drawing of FIG. ), And when the landing door is opened, the manual stop of the car that drives the hoistway inside the door It has a key groove (k) to implement.

In addition, various types of safety devices are installed in various places of the elevator to promote safe operation of the cage. For example, a governor installed at the upper or lower portion of the hoistway is installed at the bottom of the cage when the cage detects an abnormal speed of the cage. The emergency stop means is operated to emergency stop the cage to protect the passengers safely.

Such elevators are periodically maintained and inspected to prevent the occurrence of safety accidents. In particular, the driving unit, which is one of the most important parts of the elevator, is managed by keeping the maintenance and inspection cycles very short.

In order to perform a safety inspection of the elevator, as shown in Figure 1a, it is essential to manually stop the operation of the car (C) moving up and down inside the hoistway, so that it can be stopped at the position of the opening and closing door (D) . This is to help the operator's convenience to stop the car (C) on the hoistway outside the opening and closing door, and to rise for repair on the top of the car (C).

Referring to FIG. 1B, in order to work on the car C, the inside of the hoistway, the landing door, and the like shown in FIG. 1A, the key is inserted into the above-described keyway k from the outside of the opening and closing door to guess the part where the car stops. Manual stop will be activated. When the car C is stopped in the space X1 to X2 between the upper and lower parts of the door, when the door is opened, as shown in FIG. 1B, the upper surface (roof part) of the car C is opened and closed. The bottom (X2) of the bore stops slightly to be caught above, and stops manually at this position, and the worker climbs to the top of the car to perform maintenance work.

However, it is difficult to stop at the correct position so that the upper portion of the car to the X3 position in Fig. 1b, which is a convenient position for boarding, depending on the feeling by the door key as described above, and insert the door key and open the landing door. At the time of opening, there is a possibility of safety accidents such as falling, pinching, and impact. Therefore, it is urgent to prepare countermeasures.

Korea Patent Office Registered Patent Publication No. 10-1569002

The present invention has been made in order to solve the problems described above, when the operator turns the 'car upper boarding switch' in the manual operation panel inside the car at the desired floor, the car (CAR) manual operation If you move in the mode and descend, and if you move down the set distance, the control stops automatically, so when the upper surface (roof) of the car is opened, the operator will be able to board the car safely. It relates to an elevator car upper entry driving system.

The present invention includes the following examples in order to achieve the above object.

An exemplary embodiment of the elevator car upper entrance driving system according to the present invention, the check signal for detecting the signal generated from the button included in the operation panel in the car (CAR) by transmitting data to the operation panel in the car (CAR) A sensing unit;

A moving distance data receiving unit received from the control panel and receiving data on the descending distance of the elevator car so that the upper part of the elevator car can be located on the current floor called by the operator;

A stop distance calculator for converting the number of rotations of the motor included in the hoist in proportion to the data received by the moving distance data receiver;

A stop distance detecting unit for stopping by comparing the moving distance obtained by the moving distance calculating unit with a preset stopping distance; and

A door open detection unit for generating a signal so that an operator can open the door of the elevator car by using the door key when the elevator car descends and stops by an appropriate distance by the stop distance calculator;

It characterized in that it comprises a male / automatic operation switching unit for transmitting data to the control panel so as to switch the operation of the elevator car manually or automatically.

In another embodiment of the present invention, the stop distance calculator is characterized in that for calculating the moving distance based on the number of rotation of the motor included in the hoist.

In another embodiment of the present invention, the stop distance calculator is characterized in that the elevator car is moved in accordance with the rotation ratio of the electric motor, reducer, sheave.

The present invention can be boarded on the top of the car in an optimally safe form with a driving function that stops in the correct position and waits for boarding just by operating the switch to improve the safety of the operator during the inspection, inspection, installation, repair of the elevator, Occurs due to physical shocks applied to mechanical structures such as cars that are stopped while the elevator is automatically stopped by opening the safety switch, and electric shocks applied to the inverter circuit or the control circuit as the power to the motor is suddenly cut off. It is possible to prevent equipment damage such as damage to semiconductors.

1A is a conceptual diagram schematically illustrating a configuration diagram of an elevator.
FIG. 1B is a conceptual diagram for describing an operation of stopping a car in the manual mode of FIG. 1A.
FIG. 2 is a view schematically illustrating a configuration diagram of the general elevator described above with reference to FIGS. 1A and 1B.
3 is an exemplary view schematically showing a manual operation panel in a car including an elevator car upper entrance driving switch according to the present invention.
4 is a configuration diagram schematically showing an elevator car upper entrance driving system according to the present invention.
5 is a flowchart schematically showing a method of using an elevator car upper entrance driving system according to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the terms to be described below are commonly used terms in consideration of functions in the present invention, which may vary depending on the intention or relationship of the producer, and the definition thereof should be made based on the overall description of the present specification.

As described above with reference to FIGS. 1A and 1B, generally, when inspecting, checking, installing, and repairing an elevator, the inspector must enter the upper part of the car and drive the car up and down by manual operation at the upper part of the car. Therefore, the method of automatically operating the elevator for easy entry and forcing the safety switch to open by forcing the safety switch with the key depending on the intuition that the operator passes easily to the boarding position is greatly reduced in reliability and precision as described above. And since there is a great risk of equipment failure, in the present invention, the upper portion of the car can be stopped in the correct position only by the operation of the switch.

Figure 1c illustrates the 'car' upper boarding switch in the manual control panel inside the car, operating for manual operation of the elevator.

The method of controlling the car in the manual or automatic mode using the modified driver boarding switch is as follows. First of all, when you work on board the car, you must get on and off by the following procedure. When boarding, turn the 'automatic / manual' switch in the upper switch box of the car above to 'manual' before boarding, and when you get off after work, turn off the platform and then turn on the 'automatic / manual' switch. The operation to turn to 'automatic' should be performed.

Therefore, when the car upper run operation switch is 'on', it becomes the 'car upper run operation' mode and automatically operates at low speed to stop at the preset position, and the operator opens the landing door and switches to 'automatic / manual' at the upper part of the car. When the switch is switched to the 'manual' position, the 'car top entry operation' mode is completed and the mode is changed to the manual operation mode for normal inspection.

After that, if you switch the 'auto / manual' switch to 'auto' after the work is implemented as a routine automatic operation.

FIG. 2 is a view schematically illustrating a configuration of a general elevator described above with reference to FIGS. 1A and 1B, and FIG. 3 is a driving panel in a CAR included in an elevator car upper entrance driving system according to the present invention. 4 is a configuration diagram schematically illustrating an elevator car upper entrance driving system according to the present invention, and FIG. 5 schematically illustrates a method of using an elevator car upper entrance driving system according to the present invention. One flowchart.

As is well known, the operation panel 10 in the CAR provided on the platform of each floor of the building in which the elevator is installed is the elevator control panel 50 provided in the machine room 40 through the communication line 11. And the elevator control panel 50 is configured to control the hoisting machine 52 to control the operation of the elevator car 60.

As shown in FIG. 3, the operation panel 10 in the CAR includes a movement and stop switch 12, a manual / auto switch 13, an IND switch 14, and a light switch. 15, a fan (FAN) switch 16, the upper inlet switch 17, car up down switch (18).

Therefore, the present invention by pressing the upper entry switch 17 included in the platform operating panel 10 to allow the upper part of the elevator car to reach the desired position.

As shown in FIG. 4, the elevator car upper entrance driving system 100 driven in conjunction with the upper entry switch 17 of the boarding point operating panel 10 is moved with a check signal detecting unit 110. The distance data receiver 120, the stop distance calculator 130, the door open detector 140, and the manual / automatic operation switching unit 150 are included.

The check signal detecting unit 110 detects a signal generated from a button included in the board operating panel 10 by transmitting data to the board operating panel 10, and the button detecting unit 110 detects a signal. When a signal is generated from the upper entry switch 170, the inspection switch is driven to transmit a signal to the control panel 50 later to allow the hoisting machine 52 to automatically descend the elevator car 60.

The moving distance data receiver 120 inputs a distance to which the elevator car 60 automatically descends so that the upper portion of the elevator car 60 can be positioned on the current floor called by the worker. Input the distance (mm) to be lowered to the control panel 50, the input value is transmitted to the stop distance calculator 130 to be described later to be converted into the number of rotation of the motor included in the hoist 52. Specifically, the rotary encoder (E) pulse by the rotation of the motor (A) is converted into a distance to calculate the moving distance by counting (see Fig. 1a and 1b).

An embodiment of such a distance conversion will be described below.

For example, the stop distance calculator 130 converts the number of rotations of the sheave included in the hoist 52 in proportion to the data received by the movement distance data receiver 120, and the number of rotations of the sheave is maximum. It is limited to two times. When the distance received from the moving distance data receiver 120 becomes two or more times in proportion to the number of rotations of the electric motor, only two times may be rotated.

In other words, the elevator car 60 per wheel of the motor can be moved by x value, which makes it possible to rotate up to two sheaves of the maximum sheave. Therefore, even when the data inputted from the moving distance data receiver 120 is input with data larger than the moving distance (mm) when the sieve rotates two wheels, only the maximum sieve two wheels are rotated so that the upper portion of the elevator car 60 is rotated. To stop at the correct position.

For example, one revolution of the motor lowers the elevator car 60 by 800 to 1000 mm. When the operator enters a number of 800 mm or less, the motor rotates down to 0 revolutions of the motor, and a number between 800 and 1000 mm is entered. When a number between 1 and 1000mm of the motor is entered, the motor can rotate two wheels. When a number greater than 2000mm is entered, the motor can rotate only two wheels regardless of the number.

That is, referring to FIGS. 1A and 1B, when the rotation of the motor A starts, the distance is converted by receiving the pulse of the rotary encoder E by the rotation of the motor, and the position of FIG. In view of the fact that stopping at the time of movement by the height is the most appropriate stop position, it is desirable to be able to set the data related to the car height as the movement distance.

Considering that the overall height of the car (C) is usually 2400 mm, the height of the landing door is 2100 mm, and by manual operation, the optimum moving distance of the car is set to descend at a low speed from 2000 to 2000 mm at the height of X1. You can set the car to stop at about 400mm from the lowest X2 height.

When the elevator car 60 descends and stops by an appropriate distance by the stop distance calculator 130, the door open detection unit 140 may open the door of the elevator car 60 using a door key. To generate a signal. Therefore, the elevator car 60 is not allowed to open the door while the worker is moving so that the safety accident can be detected in advance.

The manual / automatic operation switching unit 150 transmits data to the control panel 50 so that the operator can manually or automatically switch the operation of the elevator car 60 by the operator, and the operator transmits the data to the platform operating panel 10. By pressing the included manual / auto switch 13 it is possible to switch the operation manually or automatically. Therefore, if you want to perform the inspection and repair to switch to manual operation so that the operator can safely ride on the upper portion of the elevator car 60, and when the operation is finished to be switched to automatic operation.

Referring to Figure 4 illustrates the elevator car upper entry method using the elevator car upper entry driving system including the above configuration, first, the operator calls by allowing the elevator car 60 to arrive on the desired floor elevator When the elevator car 60 arrives at the current floor, the operator presses the upper entry switch 17 of the operation panel 10 to cause the check signal detecting unit 110 to transmit a signal to the control panel. At the same time, the hoisting machine 52 may be prepared to be driven, and at the same time, the movement distance data receiver 120 transmits a signal to the control panel 50 so that an operator may input the movement distance that the elevator car 60 intends to descend. To help. As described above, the moving distance may be input by setting an optimum stop height in consideration of the height of the car and the height of the door set in advance.

When the operator inputs the moving distance to the control panel 50, the stop distance calculator 130 may calculate the moving distance input by the operator as the number of rotations of the electric motor included in the hoisting machine 52, and calculated When the number of times reaches a maximum of 2 counts, the elevator car 60 can be stopped.

When the elevator car 60 is stopped as described above, the door open detecting unit 140 allows the operator to check the position of the upper part of the elevator car 60 by opening the door of the elevator car 60 using the door key. do.

At this time, if the position of the upper portion of the elevator car 60 is not appropriate, close the door and input the moving distance of the car to the control panel 50 again.

Accordingly, when it is determined that the elevator car 60 is stopped at the correct position, the operator presses the manual / automatic switch 13 included in the boarding point operating panel 10, and the male / automatic operation switching unit 150 which detects this is By sending a signal to the control panel 50 is switched so that the elevator can be manually operated, the operator enters the upper portion of the elevator car 60 to perform the inspection and repair.

When the work is finished, the operator exits the hoistway and presses the manual / automatic switch 13 included in the boarding point operating panel 10 again so that the elevator can be switched to automatic operation.

As described above, the present invention presses the upper entry switch included in the platform operation panel and enters the distance the elevator car wants to move, but automatically counts the elevator movement distance without entering the correct distance, so that the worker safely Has the effect of entering the upper part.

Although the above has been described with reference to embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

100: elevator car upper entrance driving system
110: check signal detection unit
120: moving distance data receiver
130: stop distance calculator
140: door open detection unit
150: manual operation switching unit

Claims (4)

A check signal detecting unit detecting a signal generated from a button included in a manual operation panel in the car;
A moving distance data receiving unit for receiving data on the descending distance of the elevator car from the control panel so that the upper part of the elevator car can be located on the current floor called by the worker;
A stop distance calculator for converting the number of revolutions of the motor included in the hoist in proportion to the data received by the moving distance data receiver;
A stop distance detection unit for stopping by comparing the moving distance obtained by the stop distance calculator with a preset stop distance; and
A door open detection unit for generating a signal so that an operator can open the door of the elevator car by using the door key when the elevator car descends and stops by an appropriate distance by the stop distance calculator;
Including a male / automatic operation switching unit for transmitting data to the control panel to switch the operation of the elevator car manually or automatically,
The stop distance calculator,
The distance is calculated by receiving the pulse of the rotary encoder included in the hoisting machine, and the distance is calculated.The elevator car per one revolution of the motor moves by the movement distance (x) value related to the preset elevator height, and the input elevator The motor rotates 0 times when the descending distance of the car is less than the preset travel distance (x), and the motor rotates 2 turns when the descending distance of the input elevator car is higher than the preset travel distance (x). Elevator car entry driving system.
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