JPS583188Y2 - Kasaiji no Hinanannaisouchi - Google Patents

Description

[Detailed description of the invention] This invention relates to a device that operates an elevator for evacuation when a fire breaks out in a building.

Recently, with the increase in the number of high-rise buildings and skyscrapers, the number of situations in which precious human lives are lost due to fire has increased dramatically.

For this reason, there is a strong demand from various quarters for measures to ensure safety and early evacuation in the event of a fire.

Evacuation stairs are installed as evacuation equipment in these buildings, but considering the scale of the building, it is difficult to evacuate a large number of people at once, and it takes a considerable amount of time to complete the evacuation, so it is difficult to evacuate a large number of people at once. It is impossible to ensure complete evacuation.

For this reason, in order to use elevators, which are a means of vertical transportation in buildings, for evacuation in the event of a fire, it has been proposed that the elevators be able to be used safely even in the event of a fire.

However, it cannot be said that the evacuation elevator will not be able to operate due to damage due to fire while in service for evacuation operation.

In such a case, it would be better to evacuate quickly through the evacuation stairs, but people in the building do not know this and end up waiting unnecessarily for elevators that do not come to rescue them, making early evacuation difficult.

This invention solves the above-mentioned problems, and includes the ability to quickly evacuate people inside a building using a fire evacuation elevator, and to operate an elevator in the event of a fire that can give instructions as to whether to go to the elevator landing or the evacuation route. The purpose is to provide equipment.

Below is Part 1. An embodiment of this invention will be explained with reference to FIG.

In the figure, □□□→ is a DC power supply, and 1a to 1n are normally open contacts of fire detection relays (not shown) that are energized when the fire detectors (not shown) installed on floors 1 to n are activated. , 2 are fire control relays energized by fire detection relay contacts 1a to 1n; 2b is a normally closed contact button and a normally open contact, respectively; 3 is a well-known car call registration circuit for registering a car call using a car button provided in the elevator car; and 4 is a landing installed at each floor landing of the elevator. 5 is a well-known landing call registration circuit that registers the rising call of the hall by the rising call button of the button, 5 is a well-known landing call registration circuit that also registers the landing call, and 6 is safe even if the car is run. This is a safety circuit that closes when it is confirmed that this is the case, and can be constructed by a combination of contacts as shown in FIG.

That is, as shown in FIG. 4, 6a is a governor contact that opens when the car speed exceeds a predetermined value, 6b is an upward overshoot switch that opens when the car goes too far upwards, and 6c is a lower switch that opens when the car goes too far downwards. overshoot switch,
6d is the normally closed contact of the running relay that is energized while the car is running;
60 is a car door switch that closes when the car door is closed;
1 to 6N are landing doors and switches that close when the doors of the landings from the first floor to the Nth floor are closed.

This safety circuit 6 makes it possible to confirm whether or not the car is allowed to run.

7 is a non-running detection relay that detects that the car is unable to run; 7a and 7b are normally open contacts, 7c is also a normally closed contact, and 8 indicates the direction to the elevator hall by arrow 9 when lit. Elevator landing direction indicator light, 10
An evacuation stairway direction indicator light indicates the direction to the evacuation stairway by an arrow 11 when lit, and an evacuation direction guide board 12 houses indicator lights 8 and 10, which are installed at appropriate locations on each floor.

If the button is pressed during normal times, the fire detector is not activated, so
All the contacts 1a to 1n are opened and pressed, the fire control relay 2 is deenergized, and the contact 2a is closed and pressed.

Also, since the contact point 2b is open, the evacuation direction guide board 1
The elevator direction indicator light 8 button and the evacuation direction light 10 of No. 2 are off.

In this state, it is possible to register a call for all floors, a call button for going up to the hall, and a call for getting off the hall, and the elevator is operated normally by registering these calls.

If a fire breaks out on any floor, the fire detector on that floor is activated, the fire detection relay is energized, and the contact (for example, contact 1m) corresponding to that floor is closed.

Fire control relay 2 is energized by closing contact 1m, and contact 2a is opened.

Therefore, the car call registration circuit 3 button and the hall up call registration circuit 4 are disconnected from the power supplies + and -.

Therefore, all the car call buttons and hall up calls that have already been registered are canceled, and further registration of car call buttons and hall up calls is disabled.

However, since the circuit (-1-)-6-7-←) is passed, the non-running detection relay 7 is energized, and the contacts 7a and 7b
is closed and contact 7° is open, so the alighting call registration circuit is connected.

Therefore, for example, the driver can get into the car and operate the car by responding only to calls to get off the car.

On the other hand, the contact 2b is closed by the activation of the fire control relay 2, so the indicator light 8 is turned on by the circuit (section-2b-7a-8-t), and the arrow 9 indicates the direction to the elevator hall. .

Based on this instruction, people inside the building are guided to the elevator landing, transported to the lower evacuation floor (usually the first floor), and can evacuate to the outside of the building.

If the elevator is unfortunately damaged by fire, for example, the contacts of the switch that confirms the closed state of the car or landing door are opened, and if the elevator operation is expected to be dangerous, the safety circuit 6 will open. .

As a result, the detection relay 7 is deenergized, the contact 7a is opened, and the indicator light 8 is turned off.

On the other hand, the contact 7c is closed, the indicator light 10 is lit, and the arrow 11
People inside the building will be directed to the evacuation stairs.

Therefore, people will no longer needlessly wait for an elevator that is out of service.

FIG. 3 shows another embodiment of this invention, and the circuit above the landing call registration circuit 5 is exactly the same as that in FIG. 1.

In the figure, 13 is a timer that operates after a predetermined period of time when it is energized, 13a is a normally open contact that closes when the timer 13 operates, and 13b and 13c are normally closed contacts that similarly open.

When a fire occurs and the contact 2b is closed, the timer 13 starts counting time.

Since the contact point 13a is open and the contacts i3b and 13c are closed, the indicator light 8 is lit.

Timer 13 is preset to the time required for all the people in the building to evacuate using the elevator.
After this time has elapsed, the contact 13a closes and the contacts 13b and 13'c open.

Therefore, the indicator light 8 is turned off and the indicator light 10 is turned on.

In this way, the direction display of the elevator landing and the evacuation route may be switched depending on the elapse of a preset time.

Further, a broadcasting device can be used instead of the indicator lights 8, 100 to provide guidance to an elevator landing or an evacuation staircase.

Needless to say, even if you are in an elevator that is not in service in the event of a fire, you can obtain the same function as this invention by installing a device to guide you to the evacuation stairs as described above.

As explained above, Riko Kabuto's idea is that in the event of a building fire, at least the registration of the car call up the hall is invalidated and the elevator is put into service for evacuation operation, and when the above service is possible, the elevator is guided to the landing, and When the elevator cannot be used for evacuation operation, the guide to the evacuation route is displayed or broadcast, so in the event of a fire, people in the building can be evacuated quickly using the general elevator, saving precious lives. , it is possible to give clear instructions to people in the building as to which direction to go to, the elevator landing or the evacuation route, and it is possible to carry out a smooth evacuation.

[Brief explanation of the drawing]

Fig. 1 is a main circuit diagram showing one embodiment of an elevator fire operation system according to this invention, Fig. 2 is a front view of an evacuation direction guide panel, and Fig. 3 is a partial circuit showing another embodiment of this invention. 4 are essential circuit diagrams showing one embodiment of the safety circuit. 1a to 1n... Fire detection relay contact, 2... Fire control relay, 3... Car call registration circuit, 4... Landing up call registration circuit, 5... Landing exit call registration circuit, 6.
-・Safety circuit, 7... Unable to run detection relay, 8...
Elevator hall direction indicator light, 9...arrow, 10...
Evacuation staircase direction indicator light, 11...arrow, 12...evacuation direction guide board, and the same or equivalent parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A fire control relay 2 having a contact that disables registration of at least a landing up call and a car call in the event of a fire.Even if this fire control relay 2 is pressed when activated, an alighting call that causes the car to operate to a predetermined evacuation floor is registered. A landing call registration circuit 5 for detecting a landing call, a detection relay 7 for detecting the above-mentioned corner being unable to run, and a first contact 7Bt that responds when this detection relay is energized.
A second contact 7 that responds when the detection relay 7 is deenergized
Fire in an elevator equipped with a guidance device installed on a floor that displays or broadcasts guidance to the elevator in response to the first contact, and displays or broadcasts guidance to the evacuation route in response to the response of the second contact. Time driving device.