JP2007244607A - Automatic closure apparatus equipped with electric storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic closure apparatus which is used in fire-fighting equipment for closing an opening by descending with its dead weight and closes the opening only by receiving an action signal from a coupled controller. <P>SOLUTION: The automatic closure apparatus has an electric storage device and a charging device. When the automatic closure apparatus receives an action signal from the coupled controller, the closure apparatus receives a power supply from the equipped electric storage device and is actuated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automatic closing device that is provided in a fire fighting facility that closes an opening by its own weight drop and that closes the opening by receiving an operation signal.

  Fire-fighting equipment is installed in specific parts such as elevators, escalators, and ducts in buildings, and inside buildings of a certain size or larger to prevent the spread of fire and the spread of smoke, and to close the openings by falling under their own weight in the event of a fire. The fire-fighting equipment includes smoke- and fire-proof shutters installed in elevators and escalators, fire-proof shutters installed in buildings, flame-proof dampers installed in ducts, fire-proof panels installed in windows and ceilings. There are hanging walls that hang down a length of non-combustible cloth. With reference to FIG. 9, the operation of lowering the weight of a smoke / fire prevention shutter (hereinafter simply referred to as “shutter”) 100 will be described as an example. Normally, the shutter curtain 101 is stopped without dropping its own weight by braking the opening / closing machine 105 connected to the winding shaft 104 of the shutter curtain 101 via a sprocket with a brake. When the sensor 107 detects smoke, heat, flame, or the like in a fire, a fire signal is transmitted to the interlock controller 108 that controls the fire fighting equipment, and the interlock controller 108 transmits an operation signal and supplies electricity to the fire fighting equipment. . The automatic closing device 106 that has received the operation signal and electricity releases the braking by the brake of the switch 105 by a mechanical method, and the shutter curtain 101 starts to descend by its own weight. Thus, the shutter 100 is closed when the shutter curtain 101 reaches the floor surface.

  FIG. 10 is a diagram illustrating a situation in which a plurality of fire fighting facilities are controlled by one interlocking controller 108. The interlocking controller 108 can control a plurality of fire fighting facilities, and FIG. 10 shows four shutters 100 as the fire fighting facilities. FIG. 11 is an electric circuit diagram of the automatic closing device 106 of the shutter 100 in FIG. With this configuration, when the interlock controller 108 receives a fire signal from the sensor 107, the operation signal is transmitted to the automatic closing device 106 of the four shutters 100 and electricity is supplied. Accordingly, the brake is released by the operation of the electromagnetic solenoid 110 of the automatic closing device 106, and each shutter curtain 101 is lowered by its own weight.

  Here, the interlock controller is provided with a battery so as to operate even during a power failure. Therefore, since the output current is limited by the structure standard of the interlock controller, the number of automatic closing devices that can be operated simultaneously is limited. For example, if the output current of the interlocking controller is 2A due to the above-mentioned limitation, if the operating current of one automatic closing device is 0.5A, the interlocking controller operates only four automatic closing devices at the same time. I can't. For this reason, when many automatic closing devices are operated, a method of operating them sequentially rather than simultaneously is used. FIG. 12 is a diagram illustrating a method of sequentially operating the automatic closing device 106 of the shutter 100 by the interlock controller 108. In FIG. 12, eight shutters 100 are installed around the escalator. If the operating current of the automatic closing device 106 of each shutter 100 is 0.5 A and the output current of the interlock controller 108 is 2 A, only four automatic closing devices 106 can be operated at the same time. One solution to this problem is as follows. First, electricity from the interlock controller 108 is supplied to the automatic closing devices 106a to 106d, and the shutter curtains 101a to 101d are lowered. When the lowering of the shutter curtains 101a to 101d is completed, the switch 109 supplies electricity to the automatic closing devices 106e to 106h. As a result, the shutter curtains 101e to 101h are lowered by their own weight, and the closing of all the shutters is completed. In the above description, the operation of the weight drop and the switching device has been described by taking the smoke-proof fire shutter as an example.

  However, by using this switch, the weight drop of the fire fighting equipment whose operation sequence is later will be delayed, and if the switch malfunctions, the fire fighting equipment that operates after switching will operate normally. There was a problem of not doing. Furthermore, since current calculation is required in the construction work of the fire fighting equipment, the construction is difficult, and there is a problem that the installation cost becomes high due to the installation and wiring of the switch.

  Therefore, the present invention suppresses the output current from the interlock controller and operates all the facilities at the same time without using a circuit such as a switching device, thereby enabling quick and reliable operation and easy installation work. It is an object of the present invention to provide an automatic closing device that can be used.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  The invention according to claim 1 is provided in a fire fighting facility (1) that closes an opening by its own weight drop, receives an operation signal from an interlock controller (11) that has received a fire signal of a sensor (10). An automatic closing device (7) for closing an opening, comprising: a power storage device (8); and a charging device (12) connected to the power storage device; The problem is solved by providing a characteristic automatic closure device.

  Here, the “opening” means a portion that can be closed and opened, such as a portion that opens from the inside of the building, such as a window, and a portion that is partitioned by the fire-fighting equipment inside the building. The term “closed” includes not only the case where all the openings are closed, but also the case where a part of the openings is closed. Further, the “charging device” means a device that can supply electricity to the power storage device from the outside, such as a generator, a battery, and a commercial power source.

  Invention of Claim 2 solves the said subject by providing the fire-fighting equipment (1) characterized by including the automatic closing device (7) of Claim 1.

  According to the first aspect of the present invention, the automatic closing device receives the operation signal from the interlock controller, and operates by receiving the supply of electricity from the power storage device provided therein. Therefore, the interlock controller is not related to the output current limitation by sending only the operation signal to the automatic closing device, and at the same time, it can send the operation signal to many fire fighting equipment, so no switching device is required. It becomes. Thereby, all the fire fighting facilities can be operated quickly and reliably. Moreover, since current calculation is not required in the installation work, the installation is facilitated, and the installation work of the switching device is not required, so that the installation can be speeded up and the installation cost can be reduced.

  According to the second aspect of the present invention, there is provided a fire fighting facility capable of closing the opening of the building safely, quickly and surely and easily constructed by the effect of the first aspect of the present invention. Is possible.

  Such an operation and gain of the present invention will be made clear from the best mode for carrying out the invention described below.

  Hereinafter, fire fighting equipment according to the present invention will be described as a shutter based on an embodiment shown in the drawings. Further, although the power storage device is described as a capacitor and the charging device as a commercial power source, what is described below is an example of an embodiment of the present invention, and the present invention is not limited to the following description unless it exceeds the gist. It is not something.

  FIG. 1 is a perspective view of a shutter 1 that closes an opening in a building. Normally, fire fighting equipment such as shutters that fall under its own weight is manufactured by a manufacturing company, a disaster prevention company installs fire fighting equipment and disaster prevention equipment such as an interlock controller, and is managed by a construction company. For this reason, manufacturing companies generally aim to improve the performance of their products, such as safety and durability, while disaster prevention companies generally use existing products of manufacturing companies for construction, and construction companies generally combine them. Therefore, it is very difficult for a manufacturing company to grasp the problem of its own product from the viewpoint of installation and construction by a disaster prevention company, and to develop and improve the product based on it. In the present invention, the inventors have overcome the difficulties and have been intensively studied. The shutter curtain 2 constituting the shutter 1 is provided with guide rails 3 at both left and right ends perpendicular to the floor surface, and a winding shaft 5 provided on an upper bearing bracket 4 is attached. The opening / closing machine 6 is configured by attaching a brake and a speed governor to a rotating shaft, and is connected to the winding shaft 5 by a chain via a sprocket. The automatic closing device 7 includes a capacitor box 8 containing a capacitor as a power storage device and a brake release device 9, and the capacitor box 8 is connected to an interlocking controller 11 connected to a sensor 10 and a commercial power source 12 of a charging device. The The brake release device 9 is attached to the opening / closing machine 6. With this configuration, the capacitor of the capacitor box 8 is charged by the commercial power supply 12 at normal times. In the event of a fire, the interlock controller 11 receives a fire signal from the sensor 10 and transmits an operation signal to the capacitor box 8. Upon receipt of this operation signal, the automatic closing device 7 is operated as will be described later, and the brake of the opening / closing device 6 is released, whereby the opening / closing device 6 is rotated by the dead weight of the shutter curtain 2, and the speed governor suppresses the speed. The rotation is transmitted by the chain through the sprocket, and the winding shaft 5 is rotated. As a result, the shutter 1 closes as the shutter curtain 2 falls by its own weight along the guide rail 3.

  FIG. 2 is an electric circuit diagram of the automatic closing device 7 of the shutter 1. The automatic closing device 7 includes a capacitor box 8 containing a capacitor, a commercial power source 12 which is a capacitor charging device, and a brake releasing device 9. In the capacitor box 8, the interlock controller 11 and the commercial power source 12 connected to the sensor 10 are connected to the input terminal, and the brake release device 9 is connected to the output terminal. Here, the brake releasing device 9 includes an electromagnetic solenoid 13 and has a structure that operates instantaneously upon receiving power supply, and is attached to the switch 6. With this configuration, when the capacitor box 8 receives an operation signal from the interlock controller 11 that has received the fire signal from the sensor 10 in the event of a fire, the capacitor box 8 uses the brake release device from the capacitor charged by the commercial power supply 12 at the normal time. Supply electricity to 9. Thereby, the electromagnetic solenoid 13 operates instantaneously, the brake of the switch 6 is released, and the shutter curtain 2 starts its own weight drop. Therefore, since the automatic closing device 7 can operate without being supplied with electricity from the interlocking controller 11 in operation, the interlocking controller 11 is irrelevant to the limitation of the output current.

  FIG. 3 is a connection diagram of one interlocking controller 11 and a plurality of shutters 1. The interlock controller 11 is connected to a capacitor box 8 that is a power storage device of the plurality of shutters 1.

  FIG. 4 is an electric circuit diagram of the automatic closing device 7 of the plurality of shutters 1 in FIG. A capacitor box 8 that is a power storage device is connected to an interlock controller 11, a commercial power source 12, and a brake release device 9.

  With this configuration, the capacitors in each capacitor box 8 are charged by the commercial power supply 12 at normal times. In the event of a fire, each capacitor box 8 receives an operation signal from the interlock controller 11 that has received the fire signal from the sensor 10, and supplies electricity to the brake release device 9 from the capacitor stored during normal operation. As a result, the electromagnetic solenoid 13 is activated, and the brake of the opening / closing machine 6 is released, whereby the shutter curtain 2 starts to fall by its own weight, and all the shutters 1 are closed. Therefore, the automatic closing device 7 does not require the supply of electricity from the interlocking controller 11 at the time of operation, and the interlocking controller 11 becomes irrelevant to the limitation of the output current. Since it can be operated, a switching device is not necessary. Therefore, the opening can be closed quickly and reliably, the construction can be facilitated, and the installation cost can be reduced.

  FIG. 5 is a perspective view of the shutter 20 with a hazard prevention device. The harm prevention device is a device for preventing an accident that is caught in the shutter curtain 2 that is falling under its own weight. Here, as an example of harm prevention, the shutter curtain 2 that falls by its own weight comes into contact with an obstacle to temporarily stop the closing of the shutter 20, and when the obstacle disappears, the weight drop of the shutter curtain 2 is resumed to complete the closing. The method will be described. The harm prevention device is composed of an automatic closing device 21 and an obstacle detection unit. Therefore, in FIG. 5, in the shutter 1 of FIG. 1, the configuration of the automatic closing device is changed as described later, and the seat plate switch 22 is replaced by a shutter curtain. 2 is connected to the automatic closing device 21 by a lead wire 24 attached to a seat plate at the lowermost end of 2 and wound around a reel 23.

  FIG. 6 is an electric circuit diagram of the automatic closing device 21 of the shutter 20. When the obstacle prevention device detects an obstacle while the shutter curtain 2 is falling under its own weight, the hazard prevention device needs to brake the brake of the opening / closing device 6 again and stop the shutter curtain 2 from dropping its own weight. Therefore, here, the brake release device 26 uses a structure that needs to be energized in order to maintain the operation, and when the energization is stopped, the brake of the switch 6 is returned to the braking state. Thereby, in FIG. 6, the automatic closing device 7 of FIG. 2 is changed. The circuit of the brake release device 26 has an input terminal connected to the timer circuit 27, and the timer circuit 27 energizes the switch 28 of the b contact (normally closed contact) interlocked with the brake release of the brake and the brake release motor 29. A circuit and a circuit for energizing the electromagnetic clutch 30 are configured. In addition, a seat plate switch 22 having a contact (normally open contact) is connected to the timer circuit 27.

  With this configuration, the capacitor of the capacitor box 25 is charged by the commercial power supply 12 at normal times. In the event of a fire, the interlock controller 11 transmits an operation signal to the capacitor box 25 when receiving a fire signal from the sensor 10. The capacitor box 25 receives this operation signal and supplies electricity to the brake release device 26 from the capacitor stored in the normal time. In the brake release device 26, the supplied electricity enters the timer circuit 27 and is immediately output to the brake release motor 29 and the electromagnetic clutch 30 by the control of the timer circuit 27 regardless of the timer setting time. When the brake release motor 29 is driven, the brake of the switch 6 is mechanically released. Thereby, the shutter curtain 2 starts its own weight drop. When the brake of the opening / closing machine 6 is released, the switch 28 is opened and the drive of the brake releasing motor 29 is stopped. On the other hand, the release of the brake is maintained by the operation of the electromagnetic clutch 30, so that the weight reduction of the shutter curtain 2 continues. Here, when the shutter curtain 2 comes into contact with an obstacle and the seat plate switch 22 is closed, the electromagnetic clutch 30 is released by the control of the timer circuit 27, whereby the electromagnetic clutch 30 is released and the brake is braked. It returns to the state, and the weight drop of the shutter curtain 2 stops. Further, the switch 28 is closed by braking the brake. When the obstacle disappears, the seat plate switch 22 is opened, but the brake release motor 29 and the electromagnetic clutch 30 are not energized until the set time elapses under the control of the timer circuit 27. Thereby, even if the obstacle disappears, the shutter curtain 2 does not fall by its own weight within the set time of the timer circuit 27, so that further safety is achieved. After the set time elapses, the brake release motor 29 and the electromagnetic clutch 30 are energized to release the brake of the switch 6 and the shutter curtain 2 resumes its own weight drop. If there is no obstacle, the shutter 20 is completely closed. . Therefore, since the automatic closing device 7 can operate without receiving power supply from the interlocking controller 11 when releasing the brake and braking by an obstacle, the interlocking controller 11 is irrelevant to the limitation of the output current. It becomes.

Here, the required charge amount Q [C coulomb] of the capacitor is obtained from the current I [A ampere], the time T [s second], the capacitor capacitance C [F farad], and the voltage V [V volt].
Q = I ・ T = C ・ V
Therefore, the capacitance C of the capacitor can be obtained from the operating current I of the brake releasing device 26, the operating time T of the brake releasing device 26, and the voltage V applied to the capacitor. Here, in the case of using a structure that returns to the braking state of the brake when the brake release device 26 is de-energized like the electromagnetic clutch 30, the operation of the brake release device 26 is maintained in order to continue the weight reduction. Therefore, the operating time T of the brake release device 26 is lengthened, and the capacitance C of the capacitor is increased. For this reason, the brake release device 26 is configured to switch between braking and release of the brake by instantaneous electricity such as an electromagnetic solenoid, and by operating the brake release device 26 by opening and closing the seat plate switch 22, the capacitance of the capacitor C can be reduced.

  FIG. 7 is a connection diagram between one interlocking controller 11 and a plurality of shutters 20. The interlock controller 11 is connected to a capacitor box 25 that is a power storage device of the plurality of shutters 20.

  FIG. 8 is an electric circuit diagram of the automatic closing device 21 of the plurality of shutters 20 in FIG. A capacitor box 25 that is a power storage device is connected to the interlock controller 11, the commercial power source 12, and the brake release device 26.

  With this configuration, the capacitors in each capacitor box 25 are charged by the commercial power supply 12 at normal times. In the event of a fire, the capacitor box 25 receives an operation signal from the interlock controller 11 that has received the fire signal of the sensor 10, and supplies electricity to the brake release device 26 from the capacitor that is stored during normal operation. As a result, the brake release motor 29 and the electromagnetic clutch 30 are operated to release the brake of the opening / closing device 6, so that the shutter curtain 2 falls by its own weight, and if there is no obstacle, all the shutters 20 are closed. Therefore, the automatic closing device 21 does not require the supply of electricity from the interlock controller 11 when releasing the brake and braking by an obstacle, and the interlock controller 11 is irrelevant to the limitation of the output current. Since many fire-fighting facilities can be operated at the same time, a switching device becomes unnecessary. Therefore, the opening can be closed quickly and reliably, the construction can be facilitated, and the installation cost can be reduced.

  In the above description, the embodiment of the present invention has been described by taking a steel smoke-proof fire shutter as an example. However, the present invention is not limited to fire-resistant shutters, fire-resistant screens in which the shutter curtain is a non-combustible cloth, and other fire-fighting units such as a fire-proof damper. It can also be applied to equipment. It is also possible to use a battery or the like as a power storage device instead of a capacitor, and use a solar system or a linked controller that is changed to supply electricity to the power storage device during normal use as a charging device instead of a commercial power source. is there.

  While the present invention has been described in connection with embodiments that are presently the most practical and preferred, the present invention is not limited to the embodiments disclosed herein. However, the invention can be changed as appropriate without departing from the spirit or concept of the invention that can be read from the claims and the entire specification, and the automatic closing device and fire fighting equipment accompanying such a change are also included in the technical scope of the present invention. Must be understood as being.

It is a perspective view of a shutter. It is an electric circuit diagram of the automatic closing device of the shutter. It is a connection diagram of an interlocking controller and a plurality of shutters. It is an electric circuit diagram of the automatic closing device of a plurality of shutters. It is a perspective view of a shutter with a harm prevention device. It is an electric circuit diagram of the automatic closing device of the shutter with the safety device. It is a connection diagram of an interlocking controller and a plurality of shutters with a hazard prevention device. It is an electric circuit diagram of the automatic closing device of a shutter with a plurality of harm prevention devices. It is a perspective view of the conventional shutter. It is a connection diagram of a conventional interlocking controller and a plurality of shutters. It is an electric circuit diagram of a conventional automatic closing device for a plurality of shutters. It is a figure which shows the condition of control of the conventional shutter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter 2 Shutter curtain 3 Guide rail 4 Bearing bracket 5 Winding shaft 6 Opening and closing machine 7 Automatic closing device 8 Capacitor box 9 Brake release device 10 Sensor 11 Interlocking controller 12 Commercial power supply 13 Electromagnetic solenoid 20 Shutter 21 Automatic closing device 22 Seat Plate switch 23 Reel 24 Lead wire 25 Capacitor box 26 Brake release device 27 Timer circuit 28 Switch 29 Brake release motor 30 Electromagnetic clutch 100 Shutter 101 Shutter curtain 102 Guide rail 103 Bearing bracket 104 Shaft 105 Opening and closing device 106 Automatic closing device 107 Sensor 108 Interlocking controller 109 Switch 110 Electromagnetic solenoid

Claims (2)

An automatic closing device that is provided in a fire fighting facility that closes an opening by its own weight drop and that receives an operation signal from an interlock controller that has received a fire signal of a sensor and closes the opening, the power storage device, An automatic closing device comprising: a charging device connected to a power storage device, wherein electricity is supplied from the power storage device when the weight falls. A fire fighting facility comprising the automatic closing device according to claim 1.

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