JPH0533678Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an emergency power check device for an electric opening/closing door such as an electric shutter or an electric door installed in an opening such as a doorway.

[Problems to be solved by the prior art and the invention] Generally, in this type of electrically operated opening/closing door, in the event of a fire, etc., even during a temporary power outage, the closed door body is opened to extinguish the fire. It is necessary to carry out activities and rescue operations. For this reason, an emergency power supply device is separately provided so that in an emergency, even in a power outage state, the opening/closing machine can be operated by the emergency power supply to open the door. However, since this emergency power supply is for emergencies, it is not used during normal times and is permanently installed in the appropriate location, but it is difficult to determine whether this emergency power supply is working properly. Conventionally, the only option was to rely on periodic maintenance, and if this was neglected, there was a risk that the emergency power supply would not work in an emergency, making it impossible to open the door.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing an emergency power check device for an electric opening/closing door that can eliminate these drawbacks. The drive control circuit for the opening/closing machine that opens and closes the door is equipped with an emergency opening mechanism configured so that when the emergency start switch is activated, the emergency power supply acts on the opening/closing machine and the door can be opened using the emergency power supply. In the electric opening/closing door, the emergency opening mechanism counts the number of times the door body is opened and closed, and when this reaches a preset number of times, the power to the opening/closing machine is cut off from the normal power supply, and the emergency opening mechanism is activated. The device is characterized in that it is provided with an emergency power check means that switches to the power source side and performs an open operation using the emergency power source.

With this configuration, the present invention is capable of automatically checking the emergency power source.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, 1 is a shutter curtain of an electric shutter, and the shutter curtain 1 is wound around a winding shaft 4 supported in a shutter case 3 by forward and reverse driving of an opening/closing machine 2. The fact that the opening is opened and closed by being returned is the same as before.

Fig. 2 shows a drive control circuit diagram of the switch 2, where PBU is a push button switch for raising, PBD is a push button switch for lowering, PBS is a push button switch for stopping, LSU is a limit switch on the raising side, and LSD is a lower side limit switch. The limit switch, MCU is the ascending relay switch and its switch contacts, MCD is the descending relay switch and its switch contacts, and B is the brake, all of which are connected in the conventional circuit configuration. By pressing and operating the lowering push button switches PBU and PBD, the switch circuit becomes a closed circuit, and the current from the normal power supply E flows to the opening/closing machine 2, so that the shutter curtain 1 can be opened and closed. It's summery.

On the other hand, 5 is a charging device, 6 is a battery (emergency power source) that is charged by the charging device 5, and 7 is an inverter configured to flow current from the battery 6 to the power circuit of the switchgear 2 as described later. In Although,
The inverter 7 is provided with an emergency start switch ES that starts and closes in response to water pressure discharged from a fire hose, for example. By closing this start switch ES, the inverter 7 is switched to allow the battery current to flow to the power circuit of the switchgear 2, and the push button switch for raising is switched.
The switch contact ES connected in parallel with the PBU is closed to close the rising switch circuit, and the battery 6 causes the switch 2 to rise. An opening mechanism is configured.

On the other hand, PC is a preset counter connected to the inverter 7 side and its switch contacts, and RY is a counter relay switch and its contacts that are connected in series with the rising push button switch PBU.The rising push button switch PBU is pressed and operated. When the counter relay switch RY is activated, the switch contact
RY is switched between ON and OFF, and the preset counter PC counts this. When this count frequency reaches a preset frequency, the switch contacts PC connected in series to the inspection relay switch MCX and the reset relay switch RX are closed.
At this time, the inspection relay switch MCX is activated, closing the switch contact MCX connected in parallel with the start switch ES, switching the inverter 7 so that the current from the battery 6 flows, and the power from the normal power source E. The switch contact MCX connected to the circuit is opened to cut off the normal power supply, and battery current flows to the switch 2 to drive the switch 2 upward. In this way, the emergency power supply check circuit is constructed, and in this circuit, when the preset counter PC is counting up, that is, after the emergency power supply check is completed, the descending push button switch PBD is pressed. operate,
When closing the shutter, the lowering relay switch contact MCD, which is connected in series with the reset relay switch RX and the preset counter switch contact PC, closes and the reset relay switch is closed.
RX is activated, its switch contact RX closes and resets the count of the preset counter PC,
Turn off the power to relay switch MCX and use normal power supply E to switch machine 2 for subsequent operations including lowering.
is designed to be driven. In addition, RZ is a manual reset switch, and BZ is a buzzer (notification device).The buzzer BZ can, for example, notify that the battery is being driven by the battery 6, or if there is an abnormality in the battery drive and the shutter curtain is closed. It can be set to notify you if the amount does not rise to the upper limit.

In the embodiment of the present invention configured as described above, the opening/closing control of the shutter curtain 1 is performed by pressing the push button switches PBU, PBD, and PBS, and there is a possibility that a fire or the like may occur when the curtain is fully closed.
When you want to roll up and open the shutter curtain 1, close the drive switch ES with the water pressure of the fire hose, and as mentioned above, the emergency switch contact
While the ES is closed and the rising side switch circuit becomes a closed circuit, the current from the battery 6 is applied to the power supply circuit via the inverter 7, so that the switchgear 2 receives the voltage from the battery 6. The shutter curtain 1 can be rolled up and opened even in a power outage state.

As described above, in the present invention, the battery 6 can be used to open the shutter curtain 1 in the event of a power outage, but it is also possible to check the battery 6 periodically during normal opening/closing operations. It is possible. In other words, in this case, when the lift push button switch PBU is pressed to open the shutter curtain 1, the counter relay switch RY connected in series with it is activated and the switch contact RY is switched. , this is counted by the preset counter PC. When the count frequency reaches a preset frequency, the switch contact PC closes, the inspection relay switch MCX operates, and the switch contact MCX on the power circuit side opens, while the switch contact on the inverter 7 side opens. When the MCX is closed, the switch 2 will be operated by the power from the battery 6 side. Therefore, if the battery 6 is abnormal at this time, the opening/closing device 2 will not operate, and the battery check will be periodically and automatically performed during the normal opening/closing operation of the shutter curtain 1. Can be done.

Furthermore, this device can also automatically reset the preset counter PC. That is, when the preset counter PC has counted up to the set number of times, the switch contact will not return to its original state unless it is reset. However, when the descending push button PBD is pressed to close the shutter while the preset counter PC is counting up after the inspection, the switch contact MCD connected in series with the reset relay switch RX closes. Therefore, the reset relay switch RX is activated, the switch contact RX is closed, and the preset counter PC is reset.
Therefore, the battery check is automatically performed again after the number of times set by the preset counter PC has elapsed.

[Function and Effect] In summary, the present invention is constructed as described above, and in the event of a power outage, the door can be opened using the emergency power supply by activating the emergency start switch. Although it is,
When the normal door body opening/closing frequency reaches a preset degree, the opening/closing machine will cut off the normal power supply and perform the opening operation using the emergency power supply. Therefore, there is no longer a need for maintenance checks that must be performed separately and periodically as in the past, and periodic emergency power checks can be performed automatically during normal door opening and closing operations. . Therefore, reliable emergency power supply maintenance is possible at all times.
This makes it possible to ensure emergency measures in the event of a power outage.

[Brief explanation of the drawing]

The drawings show an embodiment of the emergency power check device for an electric opening/closing door according to the present invention, and FIG. 1 is a schematic diagram of the electric shutter, and FIG. 2 is a drive control circuit diagram of the opening/closing machine. . In the figure, 1 is a shutter curtain, 2 is an opening/closing machine,
6 is the battery, ES is the start switch, PC is the preset counter, MCX inspection relay switch and its switch contacts, RY is the counter relay switch and its switch contacts, RX is the reset relay switch and its switch contacts.

Claims (1)

[Scope of utility model registration request] The drive control circuit of the opening/closing machine that opens and closes the door is equipped with an emergency opening mechanism configured so that when the emergency start switch is activated, emergency power is applied to the opening/closing machine and the door can be opened using the emergency power. In the electric opening/closing door, the emergency opening mechanism counts the number of times the door body is opened and closed, and when this reaches a preset number of times, the power to the opening/closing machine is cut off from the normal power source and the emergency power source is turned on. 1. An emergency power check device for an electric opening/closing door, characterized in that an emergency power check means is provided for switching the door to the open state and operating the door using an emergency power source.