JPS5856712B2 - Elevator control operation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator control operation method during an earthquake, and particularly to an elevator control operation method suitable for returning individual elevators to normal operation after an earthquake has subsided.

Conventionally, this kind of elevator control operation is carried out by installing a monitoring panel in a part of the control room that controls the entire building, and either by the manager using a changeover switch, or in some cases by earthquake detection. Controlled operation was automatically performed in conjunction with the device.

However, if you do not perform an inspection operation after the control operation has been completed, there is a risk of damage to equipment inside the tower, separation of the car or counterweight from the rail, disconnection of the electrical system, etc. is dangerous.

By the way, since these inspections were outsourced to elevator maintenance companies, there were no regulations regarding the return procedure after controlled operation, and in the unlikely event that the building manager turned on the changeover switch or the earthquake detection When the equipment is returned to its original position, all elevators return to normal operation.

Therefore, there is a very dangerous drawback that normal operation may be started without inspection operation.

The present invention has been made in view of the drawbacks of the above-mentioned prior art.
The purpose is to provide a controlled operation system for elevators that prevents normal operation and performs controlled operation when an earthquake occurs, and can safely return to normal operation after the earthquake occurs.

The feature of the present invention is that the earthquake detection device memorizes the operation of each elevator and prevents normal operation of the elevator, and also provides this memory canceling means for each elevator, so that normal operation can be prevented in the event of an earthquake. Safety is improved by making it possible to prevent and restore operation of each elevator while checking the operation.

Furthermore, the above-mentioned memory cancellation is made possible on the condition that the elevator has been turned off, thereby further improving safety. This point will be explained in detail in the following embodiments.

The present invention will be explained in detail below using the embodiments shown in FIGS. 1 and 2.

FIG. 1 is an electrical circuit diagram showing the relationship between an earthquake detection device and an earthquake storage device according to an embodiment of the present invention, and illustrates a case where one earthquake detection device controls three elevators. .

In FIG. 1, P. No is the power supply common to the three elevators, E is the earthquake detection device, and FM1 to EM3 are the earthquake memory devices for each elevator, so that they are excited at the same time as the earthquake detection device E closes using a target relay or keep relay. Even if the earthquake detection device E is returned to its original position or the power supply P is

Even if -No expires, the memory will not be canceled unless an external recovery device is activated.

FIG. 2 is an electric circuit diagram showing an embodiment for control operation of each elevator, where Pl-N1 is a power supply, EQ is a control operation detection relay that is energized when the contact EM1a of the earthquake memory device EM1 is closed, and S The inspection operation selector switch is installed on the operation panel inside the cage and cannot be operated during normal operation. SL is an inspection operation relay that is energized when the selector switch S is set to the low speed side. UB and DB are each installed inside the cage. The provided ascending and descending inspection operation buttons U and D are ascending and descending inspection operation relays that are energized when buttons UB and DB are pressed, respectively.

Now, suppose that the earthquake detecting device is closed due to an earthquake, the earthquake memory device EM1 is energized, and its contact EM1a is closed, then the control operation detection relay EQ is energized and its contacts EQ2b and EQ3b are opened.

Therefore, the circuit between the in-car destination call button and the hall call button is cut, and a well-known nearest floor stopping device (not shown) is activated, and the running elevator immediately stops at the nearest floor. After opening the door, it will go into standby mode.

After the earthquake subsides, in order to operate the elevator normally, it is sufficient to de-energize the control operation detection relay EQ.
Immediately returning to normal operation from the standby state poses a safety problem.

Therefore, in the present invention, even if the earthquake detection device E is returned to its original state, the contact EM1a of the earthquake memory device EM1 remains closed until the memory of the earthquake memory device EM1 is canceled, and the contact EM1a is accidentally turned off. Even if the circuit is open, PlSL 1 b
-EQ1a -EQ-N11) The control operation detection relay EQ is self-maintained by the circuit (SLlb is a contact point of the inspection operation relay SL).

First, in order to perform an inspection operation by a dedicated person such as a building manager, when the inspection operation selector switch S is set to the low speed side, the inspection operation relay SL is energized, and its contacts 5L1b-8L
3b is opened, and contact 5L4a is closed.

By starting the contacts 5L2b and 5L3b, the circuit between the car destination call button and the hall call button is cut even if the contacts EQ2b and EQ3b are closed.

Although not shown in the drawings, as is well known, the elevator is switched to low-speed operation and the contact 5L4a is closed, so the ascending or descending inspection operation button UB is activated.

By pressing DB, the upward or downward inspection operation relays U and D are energized, and the elevator is operated upward or downward.

Since normal operation is not possible while the inspection operation relay SL is energized, the inspection operation selector switch S is left in the low speed side even after the completion of the low-speed inspection operation, and the earthquake detection device E is turned on. When the earthquake memory device EM1 is returned to its original state, the control operation detection relay EQ is deenergized because the contact point 5L1b is open.

Here, when the specialist gets on the car again and switches the inspection operation selector switch S to the high speed side, the inspection operation relay SL is deenergized, its contacts 5L2b and 5L3b are closed, and at this time, the control operation detection relay EQ is deenergized. Depending on the force, the contact point EQ2
b, EQ3b is also closed, so the elevator returns to normal operation.

Under this condition, a high-speed inspection operation is performed, and if the problem is resolved, normal operation is continued.

If there is any abnormality, the elevator will be stopped and the elevator will no longer be able to operate.

If, after completing the low-speed inspection operation, the inspection operation selector switch S is switched from the low-speed side to the high-speed side, and then the earthquake detection device E and the earthquake storage device EM1 are returned to their original positions, then the control operation detection relay EQ is , Pi
Since the elevator is self-maintained by the circuit SLl b EQl aEQ-N, the elevator will not return to normal operation.

When the earthquake memory device EM1 is activated in this way, a specialist must turn the car inspection operation selector switch S to the low speed side, and after completing the low speed inspection operation, return the earthquake memory device EM1 to its original position and start the inspection operation. If you do not switch the selector switch S to the high speed side,
The control operation detection relay FQ is not deenergized, and the elevator cannot operate normally.

Therefore, it goes without saying that it is possible to carry out a check run in the elevator machine room before a specialist gets on the car and inspects it, but if the inside of the car is not further inspected as described above after that, normal operation will not be possible. cannot be restored.

Note that although the above explanation was made regarding the elevator related to the earthquake memory device EMI, other earthquake memory devices EM2
The same applies to each elevator related to EM3.

The embodiment shown in Figs. 1 and 2 is configured and operates as described above, so if the inspection operation of even one elevator is completed and there are no abnormalities, that elevator can be returned to normal operation. However, if the inspection operation has not been completed, the elevator cannot be returned to normal operation.

Furthermore, since a separate earthquake memory device is provided for each elevator, the earthquake detection device E can be returned to its original state at any time after an earthquake occurs, so that when a new earthquake occurs, the earthquake detection device will operate again. From this point, the next controlled operation can be performed.

In addition, even if the earthquake detection device E is returned to its original state and a power outage occurs during the inspection operation, the earthquake memory device of the elevator for which the inspection operation has not been completed will have its contacts mechanically held and the external The memory will not be cleared unless the reset device is activated to return to the original state. When the power is restored, the control operation detection relay will be energized again, so unless the above inspection operation is performed, the elevator will not operate normally. will not return to .

As described above, according to the embodiment of the present invention, even if the return procedure of the earthquake detection device is operated incorrectly, the elevator must be returned to normal operation only after a check operation is performed by a specialist and safety is confirmed. I can't point it out.

Further, if the elevators are returned to normal operation one after another in the order in which inspection operations are completed, if a new earthquake occurs, controlled operation can be performed again.

Furthermore, even if a power outage occurs during inspection operation after the earthquake detection device has been restored, elevators for which inspection operation has not been completed will not return to normal operation unless the inspection operation is completed even after the power is restored. The advantage is that you can't.

As explained above, according to the present invention, even if the earthquake detection device is returned to its original state, it is stored in each elevator, so normal operation will not be restored all at once.
It is possible to safely return to normal operation while checking the status of each elevator.

[Brief explanation of drawings]

FIG. 1 is an electric circuit diagram showing the relationship between an earthquake detection device and an earthquake memory device, which shows one embodiment of the present invention, and FIG. 2 is an electric circuit diagram showing one embodiment for inspection operation of each elevator. . Explanation of symbols, E...Earthquake detection device, EM1-E
M3...Earthquake memory device, EMla...
Earthquake memory device EM1 contact, EQ...Control operation detection relay S...Inspection operation selector switch, SL
-----Inspection operation relay, UB------Up inspection operation button, DB------Down inspection operation button,
U: Ascending inspection operation relay D: Descending inspection operation relay

Claims (1)

[Claims] 1. An earthquake detection device, which is equipped with a plurality of elevators that perform controlled operation in response to this detection device, includes a storage means for storing the operation of the detection device for each of the elevators, and a storage means for storing the operation of the detection device for each elevator. The invention is characterized by comprising means for preventing at least the normal operation of the elevator in response to a reaction, and a memory canceling means for canceling the memory on the condition that the inspection of the elevator is completed for each of the elevators. Elevator control operation method.