KR20100117930A - Fire door closer - Google Patents

Abstract

PURPOSE: An automatic door closing device of a smoke control zone, which integrally includes a driving part and a control part, is provided to automatically close a fire door and an entrance according to a fire detection signal. CONSTITUTION: An automatic door closing device of a smoke control zone comprises a driving part and a control device. The driving part has a spring support part, a spring pressurization part, a pressing bar, a motor support part and an operation bar. The spring support part has a pressure projection. The spring pressurization part pressurizes a spring. A pressing bar pressurizes the spring pressurization part. The motor support part fixes a motor(31) and a speed reducer(32). The operation bar senses the location of the spring pressurization part. The control device operates the driving part.

Description

Automatic door closing device for smoke control area with integral driving part and control device {fire door closer}

The present invention is to provide a self-closing area door automatic closing device for automatically closing the open door (fire door) of the smoke control area (all rooms) in the event of a fire to prevent the smoke containing toxic gases generated during the fire to propagate throughout the building, It relates to a ventilation zone door automatic closing device having a drive unit and a control unit integrally.

In general, a spring or a hydraulically actuated door closure, called a "door closer," which closes the open door is automatically installed above the door, and the door is automatically closed. Such a door closer is installed between the door and the door frame to press the fluid and the spring to the inside of the compartment inside the door closure body when the door is opened so that the elastic force is applied, and the fluid inside the door closer body when the door is closed Moves to another compartment to release the spring force and closes the open door automatically and performs the buffering operation to close the door closing speed slowly by the movement of fluid.

The main function of the door closer attached to the upper side of the door is to close the opened door slowly, and the door closer for the fire door is to close the opened door automatically by the fire signal.

The smoke generated during the fire includes toxic gas, and the life damage caused by the fire can be seen that the suffocation caused by the smoke including the toxic gas occurs first rather than the heat damage.

Therefore, it can be seen that the high-rise building has a smoke control system to block the smoke generated during the fire propagation throughout the building.

The smoke control system includes an air supply device that detects smoke generated in a fire and supplies fresh air to emergency passages, such as an evacuation step, and increases toxic gas including smoke generated in a fire by increasing air pressure in all rooms or evacuation steps. It escapes to all rooms and prevents propagation to evacuation stairs or emergency elevators.

Such smoke control system automatically closes the door (entrance door or fire door) that was opened in the entire room of the building when a fire breaks out.In addition, air flows from the outside into the room to increase the air pressure in the room rather than the air pressure in the place of the fire. To prevent propagation. However, if an open door (entrance door or fire door) is not closed, smoke and heat are transmitted through the open stairs to the whole building, so the smoke control facility becomes useless when the door (entry door or fire door) is open. .

In particular, when the fire doors that separate the evacuation stairs and all rooms are open without being closed in case of fire, fresh air flowing into the rooms will not escape the evacuation stairs and the air pressure in the rooms will not be increased, thereby causing the smoke generated during the fire to be lost. After exiting the building, the building spreads through the evacuation stairs.

The present invention provides a self-closing device for the smoke control area door that automatically operates and closes by a fire signal when the door (entry door or fire door) installed in front of the evacuation stairs at the beginning of fire is opened. In connection with the "door closer" that automatically closes the fire, it is related to the automatic control of the ventilation zone door automatic closing device having a drive unit and a control unit for automatically closing the door (fire door) of the open ventilation area in the event of a fire.

As described above, by closing the door in the open state automatically in case of fire, the fresh air flowing from the outside increases the air pressure of the entire room and prevents the smoke in the room where the fire occurs due to the increased air pressure of the entire room from escaping into the previous room. As a door closing device for a fire door, it is possible to see a fuse type door closer in which a fuse is melted by heat to automatically close the door.

Conventional patents and utility model documents for the fuse type door closers can be seen as follows.

Utility Model Publication No. 86-2861

(Name of design: fuse fusel of fire door closer)

Utility Model Publication No. 87-13623

(Name of design: fuse fusel of fire door closer)

Utility Model Registration No. 20-279547

(Designation name: door stopper)

Such a door type closure door for a fire door of the prior art according to the prior art has to take a considerable time and at the same time intensive heat is applied to melt the fuse installed by the heat generated in the fire,

In fact, the fire door is closed only after the fire that melts the fuse is closed and the fire door is closed. Therefore, it can be seen that it does not faithfully perform the basic purpose or purpose of preventing the early propagation of the fire and preventing human injury.

In view of the problem that the fuse type door (fire door) closure as described above takes a long time to close the door (fire door) in the event of fire, the applicant of the present invention by the signal to detect the fire in the event of fire We have developed a door closer for fire doors that automatically closes open doors (fire doors) and registered them as utility models.

As a utility model pre-registered by the applicant

Utility Model Registration No. 20-301004

(Name of design: smoke detection door breaker)

Utility Model Registration No. 20-428319

(Name of design: smoke detection door breaker)

Can be seen.

The pre-registered utility model is to close the fire door automatically by the initial fire occurrence, the fire detection signal.

In addition, the present applicant has filed a patent application No. 10-2008-0054437 (filed date June 11, 2008), which is an advanced automatic closing device for access to the smoke control area, which is more advanced than the applicant's pre-registered utility model. It is an improvement of the applicant's prior application invention.

The present invention solves the problem of the automatic fire door of the fuse type of closing the door (fire door) in the open state by melting the fuse by the heat generated in the fire as described above,

In particular, the present invention is an improved development of the pre-registered Utility Model Registration No. 20-301004 and Utility Model Registration No. 20-428319.

The present invention has a drive device such as a motor and a reducer that operates in response to a fire signal detected in the fire, and the release shaft opened by the door closer by releasing the press force of the spring to secure the door closer while the drive shaft of the motor and the reducer rotates. It automatically closes the door (fire door) of the area, and provides the control device for the automatic closing device of the closed door in the entire room, which is an open ventilation area.

That is, the present invention is usually divided into the entrance door of the living room building entrance, the front room and the emergency staircase, and connected to the normal door closer installed in the fire door, which is the door of the smoke control area installed between the front room and the emergency staircase, fire detection in case of fire An automatic entrance / exit device for automatically closing a smoke control door or a fire door that is opened by a signal, the control device for the automatic control of the smoke control door to be connected to the door closer to control a driving device for driving the door closer. .

The driving device (driving part) of the automatic control door of the smoke control area door of the present invention is coupled to the door closer attached to the upper side of the door and automatically closes the door automatically, and simultaneously drives the driving part and the control device for driving the door closer. Having a structure.

In addition, the present invention has a structure that automatically closes the door (fire door) when the operation signal is introduced or while the operation signal is maintained while the door (fire door) in the smoke control area is open, the original when the operation signal is released Has a structure that is maintained in a state capable of opening and closing the door in the state of.

In addition, the present invention has a structure that can easily open or close the door (fire door) at any time manually, and has a structure that can monitor the operation state and confirm the operation state in an external device such as a receiver.

In addition, the present invention has a structure that can be easily checked maintenance, in particular, when the power is cut off automatically closes the entrance door (fire door), the control unit to automatically close the door by operating automatically when the power cut as described above, It is to have a power supply to operate the drive.

The present invention to operate in this way, in the event of fire, automatically closes the door (fire door) of the open smoke control area automatically to obtain a valuable life has the following configuration.

Looking at the driving unit of the inventors of the smoke control area door automatic closing device 10 as follows.

Body 11 having a space on the inside, and the space of the body 11 has a spring support 23 in which the spring 21 is inserted into the inside and the pressing projection 23-1 protrudes on one side,

Behind the spring support 23 has a spring pressing port 25 for urging the spring 21,

The rear of the body 11 has a rear support cap 12, the center of the rear support cap 12 has a pressure rod 35 for pressing the spring pressure port 25,

The motor support 33 for fixing the motor 31 and the reducer 32 is fixed to one side of the body 11 by bolts 34,

The pressure rod 35 is coupled to the shaft end of the reducer 32,

The other side of the body 11 has an upper and lower brackets 13, between the upper and lower brackets 13, a coupler 41 having a coupling groove 41-1, and the operating bar 43 is riveted (42-) 2) has a vertical coupling 42 to be fixed, the upper and lower coupling 42 and the coupling 41 is rotatably coupled between the upper and lower brackets 13 with a pin 44,

The spring pressing port 25 has an operating rod 26 protruding out of the side hole 15 formed in the body 11, the pressing projection (23-1) in front of the spring support 23 is the body 11 Protrude out of the front hole (14) of the coupling mesh with the engaging groove (41-1) of the coupling hole (41),

The outer side of the body 11 has a circuit board 51 having first and second limits 52 and 53 for sensing the position of the operating rod 26.

The rear support cap 12 that seals the rear portion of the body 11 has a structure that is coupled to the body 11 by a screw type, to finely adjust the fastening position of the rear support cap 12 fixed to the body 11 Make it possible,

Is coupled among the rear support cap 12, the pressure rod 35 is connected to the reducer 32 shaft is screwed to the rear support cap 12,

The upper and lower brackets 13 in front of the body 11 is fixed to the pin 44 so as to be rotatable, and between the upper and lower connectors 42 to secure the coupler 41 with a bolt 45,

The left and right connector 42 has a curved long hole (42-1) facing each other,

By fixing the coupler 41 with the bolt 45 through the bent long hole 42-1, the coupler 41 and the upper and lower coupler 42 is adjustable to any fixed angle,

The upper and lower brackets 13 have holes 13-1 for fastening the bolts 45.

Hereinafter, the control device for controlling the drive unit of the smoke control area door automatic closing device 10 has the following configuration.

Inlet terminal 54 and motor terminal having power input connecting portions 54-1 and 54-2 and signal input connecting portions 54-3 and 54-4 for inputting power and signals on the circuit board 51; And a first limit switch 52 and a second limit switch 53 which are operated (ON / OFF) by the operating rod 26 of the drive unit. According to the operation (ON / OFF) of the first and second limit switches 52 and 53, the motor 31 of the drive unit generates a first relay 56 and a second relay for generating a confirmation signal when the starting operation is completed. 57), a start confirmation LED (59) indicating an operating state of the drive unit, and a power confirmation LED (60) confirming a power input state,

When the input power supplied from the power input connecting portion 54-1, 54-2 of the inlet terminal 54 is cut off, it has a third relay 59 for operating the motor 31, the input power When this is cut off, it is to have a motor 31 and an auxiliary power supply for driving the present control device.

In addition, the auxiliary power supply device is composed of a plurality of capacitors 61, the plurality of capacitors 61 is a plurality of diodes 62 to reduce the peak value of the pulse voltage of the power supply to charge the capacitor 61 from the normal power supply. It was to have.

In the above, the auxiliary power supply may be composed of a charging battery and a charging circuit unit for charging the charging battery.

In the drawings, reference numeral 71 denotes a conventional door closer attached to the door to automatically close the opened door, 72 is a fire door, 73 is a fire door frame, and 74 is a front room (smoke control area).

Looking at the structure of the present invention having such a structure in more detail and at the same time look at the operation as follows.

The present invention operates a fire door that partitions the front door and the evacuation stairs of the building or smoke control area by the fire signal detected in the fire, thereby automatically closing the opened door (entry door or fire door, hereinafter called fire door), It is to block all rooms and evacuation stairs.

As mentioned earlier, in the event of a fire, the outside air is blown into the room to increase the air pressure of the room to higher than the air pressure of the room where the fire has occurred. Install and operate. As described above, when the outside air is introduced into the front room during the fire to raise the air in the front room, when the fire door installed between the front room and the evacuation stairs is opened, the air flowing into the front room from the outside escapes to the evacuation stairs. In this case, the entire room will not be able to play a role in the ventilation area.

Therefore, in high-rise buildings, the fire doors that separate all rooms and evacuation stairs must be closed.

The present invention is to protect the life by automatically closing the fire doors that partition the front room and evacuation stairs in the event of a fire and to prevent the spread of smoke and toxic gas throughout the building, or to prevent the fire from spreading throughout the building. .

The body 11 corresponding to the driving unit of the present invention is attached to the door frame supporting the fire door, and is usually used in connection with the door closer 71 installed above the door to automatically close the door.

The present invention has an operation bar 43 is connected to the door closer 71, the operation bar 43 is fixed integrally by the upper and lower connectors 42. Coupler 41 is fixed between the upper and lower connector 42 for fixing the operation bar 43. The coupler 41 has a coupling recess 41-1, and the upper and lower couplers 42 and the coupler 41 coupled thereto are pins 44 between the upper and lower brackets 13 on one side of the body 11. Are coupled to the rotation at will.

 The engaging groove 41-1 at the tip of the coupling hole 41 is engaged with the pressing protrusion 23-1 of the spring support 23 protruding into the front hole 14 of the body 11.

The spring support 23 having the pressing protrusion 23-1 is inserted into the inner space of the body 11,

A spring 21 is inserted into the spring support 23, and the spring 21 is compressed or relaxed by a spring pressing port 25 behind the spring support 23.

The pressure rod 35 pressurizing the spring pressure port 25 is a reducer 32 connected to the pressure rod 35 in a bolt type coupled to the rear support cap 12 fixed to the body 11. As the shaft rotates forward or reverse, the spring pusher 25 is pushed forward by pushing forward, and the spring pusher 25 moving forward pushes the spring 21, and when the spring pushes the spring pusher ( 25 is reversed to relax the pressing force of the spring (21).

Combining the pressure bar 35 in the middle screw type, the rear support cap 12 is coupled to one side of the body 11 is screwed to the body 11, the rear support cap 12 is the body ( In addition to the purpose of sealing the space of 11) by adjusting the depth to be coupled to have a function of arbitrarily adjusting the tension of the spring 21 is inserted into the spring support 23.

The operating rod protrudes out of the side hole 15 of the body 11 to the spring pressure port 25 which moves forward and backward by the pressing rod 35 which is rotated by the rotation of the reducer shaft 32 and moves back and forth. With reference numeral 26, the position of the spring presser 25 is sensed. That is, when the spring presser 25 moves forward, the operating rod 26 operates the first limit switch 52 of the circuit board 51 attached to the body 11 and the spring presser 25 The starting rod 26 to be moved backward backward) operates the second limit switch 53 of the circuit board 51 to detect the position of the spring presser 25.

As described above, the pressing force of the spring support 23 into which the spring 21 is inserted varies according to the position of the spring pressing hole 25.

That is, in the state in which the spring pressing port 25 is moved forward, the spring 21 is compressed and presses the spring support 23 with a large force, and in the state in which the spring pressing port 25 is moved backward The spring 21 is relaxed so that the spring support 23 is pressed with a small force.

Therefore, when the spring pressing port 25 is moved forward, the pressing projection 23-1 at the tip of the spring support 23 is coupled to the coupling groove 41-1 of the coupling port 41 with a large resilience force. ,

When the spring pressing port 25 is moved backward, the pressing projection 23-1 of the spring support 23 presses the engaging groove 41-1 of the coupling port 41 with a small force, the pressing projection The engaging groove 41-1 of the coupler 41 is separated from the coupler 23-1, and the coupler 41 is separated from the pressing projection 23-1.

The coupler 41 is fixed by an upper and lower connector 42, the operation bar 43 is connected to the upper and lower connector 42, the operation bar 43 is connected to a conventional door closer and the door closer is The pressing force is always applied to the operating bar 43. When the spring 21 is relaxed and the pressing force of the pressing protrusion 23-1 is weakened, the coupler 41 moves to the pressing protrusion 23-1. After the separation, the operation bar 43 is moved by the force of the door closer 71, it is to close the opened door, that is, the fire door (72).

When the fire door 72 is opened, the opening angle reaches a certain range, and the spring 21 is pressed against the coupling recess 41-1 of the coupling port 41 connected to the operation bar 43. The pressing protrusion 23-1 of the spring support 23 is inserted to fix the coupler 41.

The coupling hole 41 fixed by the pressing protrusion 23-1 fixes the operation bar 43 integrally therewith, so that the door closer 71 is not operated, but as described above. When the pressing projection 23-1 is separated from the coupling recess 41-1 of the 41, the fire door is closed.

The operation bar 43 is fixed between the upper and lower connectors 42 by the rivet 42-2, and the operation bar is rotatably installed between the upper and lower brackets 13 on one side of the body 11 by the pins 44. The rotation operation of 43 becomes smooth.

Hereinafter will be described the operation of the control device for controlling and driving the drive unit of the present invention.

As mentioned above, the control unit operates the driving unit, and has a lead terminal having a plurality of connecting portions 54-1, 54-2, 54-3, 54-4 on the circuit board 51. (54), power input connecting portions 54-1 and 54-2, and signal input connecting portions 54-3 and 54-4. The power input connection unit 54-1 and 54-2 of the inlet terminal 54 are input to drive the motor 31 of the driving unit, and drive the controller.

In addition, the driving rod 26 has first and second limit switches 52 and 53 which are activated (ON / OFF) according to the position of the operating rod 26 of the driving unit, and the operating rod 26 operates the first limit switch 52. When in the ON operating position, the door remains open when the door is opened and opened.

While maintaining the open state, the fire monitoring signal is input to the signal input connecting portions 54-3 and 54-4 of the input terminal 54, or the driving signal is artificially input by operating the manual start confirmation switch 63. At this time, the reverse rotation drive power is applied to the motor 31 of the drive unit, the motor 31 is reversed to reverse the shaft to loosen the elastic force of the spring 21, and at the same time, the pressing protrusion pressed by the spring 21 ( 23-1 is weakened, the pressing projection 23-1 of the driving portion is retracted, the door fixing force is released, and then the fire door 72, which has been kept open by the door closure, is closed .

When the motor 31 of the driving unit rotates in reverse and the operating rod 26 is reversed by the force of the spring 21, the second limit switch 53 is turned on to supply power to the motor 31. By interrupting the driving of the motor 31 is stopped.

The operation of the driving unit as described above corresponds to a case in which a constant power is applied from the input terminal 54 and a fire occurrence signal is input in case of a fire, or when the manual start confirmation terminal 63 is arbitrarily operated. Fire door 72 is to close automatically.

However, when a fire occurs and the power supplied from the input terminal 54 is cut off, there is no power to operate the control device or to drive the motor 31 of the driving unit, thereby automatically opening the opened fire door 72. There is a problem that can not be closed.

The present invention is equipped with an emergency power supply that automatically closes the open fire door in the event of such an emergency, that is, when the power is cut off at the same time as the fire occurs.

Emergency power supply device of the present invention is to be configured as a plurality of capacitors (61).

The plurality of condensers 61 maintains the state of charge with power input normally, even in case of fire or fire, the control device is not input to the signal input connection unit 54-3, 54-4, When the input power is cut off, it is regarded as an emergency and closes the open fire door.

That is, when the regular power input to the power input connection portions 54-1 and 54-2 of the inlet terminal 54 of the control device is cut off, the third relay 58 operates to supply power to the emergency power supply device. Is applied to the motor 31 to drive the motor 31 to release the fixing force of the door closer 71, the door closer 71 serves to automatically close the fire door (72).

In the above description, when the constant power is applied to the power input connecting portions 54-1 and 54-2, the motor 31 rotates forward and is moved forward in the normal position so that the operating rod 26 is the first limit switch. At operation 52, the first limit switch 52 is turned on and the power supplied to the motor 31 is cut off to stop the rotation of the motor 31.

As described above, the emergency power supply device for operating the motor 31 of the driving unit when the input power is interrupted at all times may be configured with a plurality of supercapacitors 61, and may be configured with a rechargeable battery and a rechargeable battery charging circuit. have.

Smoke generated during the fire of a building contains a large amount of toxic gas, and it can be seen that smoke spreads to the evacuation stairs and the whole building before the flame.

Therefore, the building will have a smoke removal facility to block the smoke generated in the fire, the smoke removal facility can be seen to operate by the smoke detection detector.

The present invention blocks the spread of fire in the event of fire, and if the fire doors installed in the front room in front of the stairs to secure the evacuation stairs, etc. are opened, the fire is quickly closed by the fire detection signal and the smoke spreads throughout the building. It will prevent you from doing so. In particular, the present invention closes the fire doors partitioning the front room and the evacuation stairs in the case of fire, thereby maintaining the outside air flowing into the front room higher than the air pressure of the room where the fire occurred, thereby forming a smoke-restriction zone reliably. It will be done.

The present invention has the advantage that the structure is simple, as shown in the above configuration, there is little concern of failure and can be operated quickly in a fire. In addition, the present invention will be referred to as an invention having a reliability of operation connected to a conventional door closer to reliably perform the closing of the fire door in the event of fire.

The present invention not only closes automatically open fire doors when smooth power is applied, but also automatically closes fire doors even when power is cut off in an emergency such as fire, even when no fire occurs. When the input power is cut off, the fire door opened by the emergency power supply is closed. Such a present invention is a very useful invention to prevent the smoke, including toxic gas generated in the fire to propagate to the emergency stairs or emergency exit.

The present invention is installed on the fire door between the front room and the evacuation stairs to automatically close the fire door that is open by the fire detection signal when the fire occurs, and automatically closes the fire door which is the door of the ventilation zone that resets the entire room to the smoke control area.

The present invention is used to connect to the door closer that is normally installed on the door to automatically close the door, the present invention is to be fixed to the fire door frame (door frame), it is used to connect the operation bar to the door closer.

Fire door is equipped with the present invention, if the opening angle is within a certain range, the door is closed by a normal door closer without being fixed, but when opening the fire door at a certain angle, the operation bar connected to the door closer is fixed by the present invention The fixed fire door will perform a closing operation when it is closed with a small amount of force.

That is, in the present invention, the pressure bar 35 fixed to the shaft of the reduction gear 32 is advanced forward, and the spring 21 is compressed by compressing the spring pressure port 25 so that the spring support 23 has a large force. To keep the pressure to

The operation rod 26 of the spring pressure port 25 advanced forward maintains the state of operating the first limit switch 52 of the circuit board 51.

The spring pressing hole 25 is advanced to press the spring 21 to the pressing projection 23-1 of the spring support 23 receives the pressure of the spring 21, the engaging groove 41 of the coupling port 41 When the -1) is coupled, the coupling sphere 41 is fixed to the pressing protrusion 23-1 by pressing the coupling sphere 41 on the pressing protrusion 23-1, but the coupling sphere 41 is spring-loaded. When the earth 23 rotates with a force greater than the pressing force, the coupling recess 41-1 of the coupling hole 41 is displaced from the pressing protrusion 23-1.

That is, when opening the fire door (72) equipped with the present invention at a predetermined angle or more, the operating bar 43 rotates, while rotating the coupler (41) between the upper and lower coupler (42), Coupling groove (41-1) to the pressure projection (23-1) by fixing the operating bar 43, which is fixed integrally with the coupling port 41 and the connector 42 and the fire door (72) in the open state Will be maintained.

As described above, when the fire door 72 is opened with a slight force, the engaging recess 41-1 of the coupler 41 escapes from the pressing projection 23-1, and the coupler 41 is closed. The operation bar 43 connected to the connection port 42 is to release the fixing force, the fire door 72 is released by the fixing force is closed by the door closer 71.

In the above, the operating bar 43 is coupled to the pressing projection (23-1) in the coupling groove (41-1) of the coupler 41, the coupling member (42) fixed to the coupler 41 can move. When a fire occurs in a fixed state so that the fire door is open, the present invention is to close the fire door 72 by automatically operating the open fire door 72 by the input of the fire detection signal.

That is, when a fire detection signal is input, a power source for rotating the motor 31 in reverse direction is input, thereby rotating the reducer 32 shaft to rotate the pressure bar 35 coupled to the end of the reducer 32 shaft, and moving backward. The reverse pressure bar 35 is to relieve the spring by reversing the spring pressure port 25 under the pressure of the spring 21. The spring pressure port 25 that is retracted as described above has the power supplied to the motor 31 when the operating rods 26 fixed thereto are operated at the same time to operate the second limit switch 53 on the circuit board 51. This is cut off and the motor 31 stops rotating.

As described above, when the spring pressing port 25 retreats to relax the compressive force of the spring 21, the pressing force of the spring support 23 surrounding the spring 21 is relaxed, and the pressing protrusion 23-1 is pressed. The pressing force of the coupler 41 is weakened, and the force to rotate the coupler 41 is greater than the pressing force of the pressing projection 23-1, so that the coupling recess 41-1 of the coupler 41 is applied. Is separated from the pressing projection 23-1.

As described above, the coupler 41 that is separated from the pressing protrusion 23-1 recovers that the door of the door closer 71 is to be closed, so that the coupler 41 is separated from the pressing protrusion 23-1. And the fire door 72 opened automatically by the pressing force of the door closer 71 at the same time.

The first and second limit switches 52 and 53 of the circuit board 51 are operated by the operating rod 26 to set the forward and reverse rotation time points and the stop time of the motor 31. .

In the control device for controlling or driving the above drive, the first and second limit switches 52 and 53 operate according to the position of the operating rod 26 to rotate the motor 31 forward, reverse or stop operation. The start of the operation is performed by the first and second relays 57 and 58, and when the power input is always interrupted by the power input connecting portions 54-1 and 54-2 of the incoming terminal 54, the third relay is started. By 59, the power supply of the condenser 61 of the emergency power supply device operates the motor 31 to automatically close the fire door 72 in the open state.

1 is a perspective view of the present invention (fire door is open)

2 is a perspective view of the present invention (fire door closed)

3 is a partially exploded perspective view of the present invention

4 is an exploded perspective view of the present invention

5 is a front view of the present invention

6 is a cross-sectional view of the fire door in the open position in the present invention

Fig. 7 is a cross-sectional view of the fire door in the closed position

Fig. 8 is a cross sectional view of a spring in a compressed position in the present invention.

Fig. 9 is a cross sectional view of a spring in a relaxed position in the present invention.

10 is a schematic cross-sectional view of a building showing the fire door and the front room to which the present invention is attached

11 state of use of the present invention (fire door closed)

Figure 12 state of use of the present invention (fire door open state)

Figure 13 is a perspective view of the use state showing the connection between the present invention and the door closer (fire door closed)

Figure 14 is a perspective view of the use state showing the connection between the present invention and the door closer (fire door is open)

<Explanation of symbols for the main parts of the drawings>

11 Body 12 Rear Support Cap

13 Bracket 13-1 Bolted hole

14 Body Front Hole 15 Side Hole

21 Spring 23 Spring Support

23-1 Pressing protrusion 25 Spring presser

26 operating rod

31 motor 32 reducer

33 Motor Support 34 Volt

35 Pressurized Rod

41 Coupling Unit 41-1 Coupling Groove

42 End Connection 42-1 Oval Long Hole

42-2 Rivet 43 Operation Bar

44 pin 45 fixing bolt

51 Circuit Board 52 First Limit Switch

53 2nd limit switch 54 Lead-in terminal

54-1, 54-2 Power input connector 54-3 Signal input connector

55 Motor Terminal 56 First Relay

57 2nd Relay 58 3rd Relay

59 Start confirmation LED

60 Power Check LED 61 Capacitor

62 Diode 63 Manual Start Switch

71 door closer 72 fire door

73 Fire door frame 74 All rooms (smoke area)

Claims (3)

Body 11 having a space on the inside, and the space of the body 11 has a spring support 23 in which the spring 21 is inserted into the inside and the pressing projection 23-1 protrudes on one side, Behind the spring support 23 has a spring pressing port 25 for urging the spring 21, The rear of the body 11 has a rear support cap 12, the center of the rear support cap 12 has a pressure rod 35 for pressing the spring pressure port 25, The motor support 33 for fixing the motor 31 and the reducer 32 is fixed to one side of the body 11 by bolts 34, The pressure rod 35 is coupled to the shaft end of the reducer 32, The other side of the body 11 has an upper and lower brackets 13, between the upper and lower brackets 13, a coupler 41 having a coupling groove 41-1, and the operating bar 43 is riveted (42-) 2) has a vertical coupling 42 to be fixed, the upper and lower coupling 42 and the coupling 41 is rotatably coupled between the upper and lower brackets 13 with a pin 44, The spring pressing port 25 has an operating rod 26 protruding out of the side hole 15 formed in the body 11, the pressing projection (23-1) in front of the spring support 23 is the body 11 A driving part which protrudes out of the front hole 14 of the coupling hole and engages with the engaging recess 41-1 of the coupling hole 41, and a control device for controlling the driving part, Inlet terminal 54 and motor terminal having power input connecting portions 54-1 and 54-2 and signal input connecting portions 54-3 and 54-4 for inputting power and signals on the circuit board 51; And a first limit switch 52 and a second limit switch 53 which are operated (ON / OFF) by the operating rod 26 of the drive unit. According to the operation (ON / OFF) of the first and second limit switches 52 and 53, the motor 31 of the drive unit generates a first relay 56 and a second relay for generating a confirmation signal when the starting operation is completed. 57), a start confirmation LED (59) indicating an operating state of the drive unit, and a power confirmation LED (60) confirming a power input state, When the input power supplied from the power input connecting portion 54-1, 54-2 of the inlet terminal 54 is cut off, it has a third relay 59 for operating the motor 31, the input power When the door is blocked, the automatic control door of the smoke control area door having a drive unit and a control device, characterized in that it has a motor 31 and an auxiliary power supply for driving the control device. The auxiliary power supply device of claim 1, wherein the auxiliary power supply device includes a plurality of capacitors 61, and the plurality of capacitors 61 are provided in order to lower the peak value of the pulse voltage of the power supply that charges the capacitor 61 from the normal power supply. The automatic control door of the smoke control area door having an integrated drive unit and a control device, characterized in that it has a diode (62). According to claim 1, Auxiliary power supply device is a self-contained area door automatic closing device having a drive unit and a control device, characterized in that consisting of a charging battery and a charging circuit unit constituting the charging battery.

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