KR200248858Y1 - automatic unlock apparatus for escape door - Google Patents

Abstract

The present invention relates to an emergency door automatic unlocking device that enables safety through the emergency exit by automatically unlocking the emergency door in case of an emergency such as a fire.

Emergency door automatic unlocking device of the present invention is installed between the emergency door and the door frame of the building, at least the unlocking operation is performed by electric power; Fire notification means installed in place of the building to notify the occurrence of fire; Receiving a release command from the fire notification means to receive the release command of the emergency door and a release command from the release command sending means, and outputting a control signal to the electronic stop means to perform the release operation; It comprises a release control means.

Description

Automatic unlock apparatus for escape door

The present invention relates to an automatic emergency door unlocking device, and more particularly to a device for automatically unlocking the emergency door in the event of an emergency such as a fire.

Emergency exits are mandatory in residential or commercial buildings where many people live in groups, and emergency exits are installed for security, security or disaster prevention reasons. In particular, the rooftop entrance of the building is equipped with an emergency door and a lock to lock it. Typically, a key holder who becomes a building manager locks the emergency door to prevent the rooftop from being used for unhealthy or impure purposes.

However, when an emergency and emergency situation such as a fire occurs in the state where the emergency door is locked, there is a problem that the possibility of causing human injury exists because the escape route through the emergency door is blocked.

The present invention has been made to solve the above-mentioned problems, and to provide an emergency door automatic unlocking device that can promote safety through the emergency exit by automatically unlocking the emergency door in case of an emergency such as a fire. have.

Emergency door automatic unlocking device of the present invention for achieving the above object is provided between the emergency door and the door frame of the building, at least the unlocking operation is performed by electric force; Fire notification means installed in place of the building to notify the occurrence of fire; Receiving a release command from the fire notification means to receive the release command of the emergency door and a release command from the release command sending means, and outputting a control signal to the electronic stop means to perform the release action; It comprises a release control means.

In the above-described configuration, the unlock command transmitting means includes a radio transmitting unit for transmitting the unlock command wirelessly and a transmitting side control unit that is notified of the fire from the unlock command transmitting unit and outputs an operation control signal to the radio transmitting unit. The unlocking control means may include a wireless receiving unit for receiving a unlocking command from the wireless transmitting unit and a receiving control unit for outputting a unlocking operation control signal to the electronic unlocking unit according to the unlocking command received from the wireless receiving unit. .

1 is a schematic cross-sectional view showing the installation state of the electronic lock unit in the automatic emergency door unlocking device according to an embodiment of the present invention,

FIG. 2 is a cross-sectional view taken along line II of FIG. 1;

3 is a cross-sectional view taken along line II-II in FIG.

Figure 4 is a block diagram of a wireless transmitting side in the emergency door automatic unlocking device according to an embodiment of the present invention,

5 is an electrical block diagram of an unlock command performing unit in an automatic emergency door unlocking device according to an embodiment of the present invention;

6 is an internal functional block diagram of a power circuit unit and an operation power display unit of FIG. 5;

7 is an exemplary view showing an installation state of the emergency door automatic unlocking device of the present invention,

8 is a flowchart illustrating the operation of the release command transmitting unit in the emergency door automatic unlocking device according to an embodiment of the present invention;

9 is a flowchart illustrating the operation of the release command performing unit in the automatic emergency door unlocking apparatus according to an embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: emergency door, 20: door frame,

30: hydrant, 100: electrostatic unit,

110: casing, 112: prop,

114: release pin, 116: keyhole,

120: motor, 122: deceleration mechanism,

124: axis of rotation, 126: disc,

128: crank, 130: slide plate,

132: power transmission unit, 134: guide slot,

135: visibility detection switch, 136: release detection switch,

138: lever pressing piece, 140: connecting rod,

150: bar, 152: supply-side electrode,

160: a control circuit board, 170: storage battery compartment,

180: manual operation mechanism, 182: cam,

184: corrective command switch, 190: charging circuit section,

192: compression spring, 194: connecting conductor,

196: supply electrode, 200: fire alarm,

210: fire alarm, 212: fire detector;

214: fire notification button, 216: or gate,

220: central control room, 230: seedling,

240: power switch, 300: release command transmission unit,

310: transmitting side control unit 320: power supply circuit unit,

330: sound detection unit, 340: vibration detection unit,

350: wireless transmission unit, 352: transmission antenna,

400: release command execution unit, 410: receiving side control unit,

420: power supply circuit section, 424: overcharge protection section,

426: storage battery, 430: operation power display unit,

432: low voltage detection unit, 434: indicator driving unit,

436: low voltage indicator, 438: steady state indicator,

440: the human body detection unit, 450: the motor drive unit,

460: lock detection unit, 470: visibility detection unit,

480: wireless receiving unit, 482: receiving antenna,

490: Correction command input unit

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the automatic door unlocking device of the present invention, the left side in the drawings will be described in the front.

Figure 1 is a schematic cross-sectional view showing the installation state of the electronic lock unit in the automatic emergency door unlocking device according to an embodiment of the present invention, Figure 2 is a cross-sectional view taken from the line I-I in Figure 1, Figure 3 is Figure 1 This is a cross-sectional view taken along line II-II. 1 to 3, in the emergency door automatic unlocking device of the present invention, the electronic lock unit (100) is installed in the emergency door 10 and the door frame 20. The casing 110 is provided with a latch 150 that is inserted into or released from the bolt hole formed in the door frame 20 to correct or unlock the emergency door 10 with respect to the door frame 20. In addition, the latch 150 is advanced (when corrected) or retracted (when released) together with the slide plate 130 while being fixed to the slide plate 130. A guide long hole 134 is formed at a rear end of the slide plate 130 in a longitudinal direction, and the guide long hole 134 is merely separated while being mounted on the support 112 installed perpendicular to the bottom surface of the casing 110. Since it is restrained by the prevention pin 114, the slide plate 130 performs the forward and backward slide movement as a result of being supported by the support | pillar 112 as a result.

The front end of the slide plate 130 is formed with a force transmission portion 132 toward the bottom surface of the casing 110, the connection rod 140 is fixed to this force transmission portion 132.

On the other hand, one end of the crank 128 is connected to the rear end of the connecting rod 140, the other end of the crank 128 is connected to the edge of the disc 126 axially coupled to the rotary shaft 124. The rotary shaft 124 is connected to the motor 120 via the reduction mechanism 122.

In place of the casing 110, the unlocking detection switch 136 and the visibility detecting switch 135, which are implemented as a micro switch, are installed, and the lower surface of the slide plate 130 is the unlocking detection switch 136 and the visibility detecting switch 135. The lever pressing piece 138 which presses the lever of these switches 136 and 135 is provided appropriately with respect to the installation position.

Referring to the correction process according to the above-described configuration, when the motor 120 rotates in the direction of the arrow in the state of FIG. 2, power is transmitted via the crank 128 and the connecting rod 140, and consequently, the force transmission unit 132. Is advanced, and thus the latch 150 fixed to the slide plate 130 is advanced, and at the same time, the unlocking detection switch 136, which is closed by the rear lever pressing piece 138, is opened. In this state, when the slide plate 130 continues to move forward and the visibility detecting switch 135 is closed by the lever pressing piece 138 in front, the driving of the motor 120 is immediately stopped and the corrective operation is completed. The unlocking operation is the reverse of the correcting operation described above.

On the other hand, reference numeral 180 denotes a manual operation mechanism that receives a corrective or unlocking command by a mechanical key. When a building manager or the like inserts a key into the keyhole 116 and turns it, the cam 182 rotates. The correction command switch 184 installed around the opening or closing is opened, and the receiving control unit described later controls the driving of the motor 120 according to the state of the correction command switch 184 to perform the correction or unlock operation. . The corrective command switch 184 may be implemented as a micro switch or the like.

Reference numeral 160 denotes a control circuit board, and 170 denotes a storage unit accommodating a battery. On the other hand, the latch 150 is made of a conductor so that the front end forms the supply-side electrode 152, it is connected to the storage battery by a wire not shown. In this regard, the door frame 20 is provided with a supply side electrode 196 in contact with the supply-side electrode 152 in a locked state, and in front of the supply-side electrode 196, a reliable contact with the supply-side electrode 152 is provided. A compression spring 192 is installed to ensure. Reference numeral 190 denotes a charging circuit part connected to the supply side electrode 196 by a connecting conductor 194. By such a configuration, the electrostatic crystal unit 100 can be operated at all times.

On the other hand, although not shown, the outer surface of the casing 110 is provided with an indicator and a human body sensor for indicating a low voltage state and a normal state of a wireless signal receiving antenna and a supply power, which will be described later.

4 is an electrical block diagram of the wireless transmission side in the emergency door automatic unlocking device according to an embodiment of the present invention, Figure 7 is an exemplary view showing an installation state of the automatic door unlocking device of the present invention. 4 and 7, in the emergency door automatic unlocking device according to an embodiment of the present invention, the wireless transmission side configuration may be largely divided into a fire alarm unit 200 and a unlock command transmitting unit 300. The fire alarm unit 200 is installed again in place of the building, for example, the ceiling or fire hydrant (30) is installed in the fire detection unit 212 for detecting the occurrence of fire, fire notification to notify the occurrence of fire by manual operation by the human body Fire notification unit 210 including an ore gate 216 that combines the output signal of the button 214 and the fire detection unit 212 and the operation signal of the fire notification button 214, audibly to the occurrence of fire A fire alarm is judged by the output signal of the alarm bell 230 for alarming, the power switch 240 for supplying a predetermined DC voltage (V _DC ) to the alarm bell 230, and according to the determination result. By closing the power switch 240 may include a central control room 220 ringing the alarm bell 230, such a fire alarm unit 200 is a configuration that is typically installed in the building. In the above-described configuration, the fire detector 212 may be implemented as a smoke detector, a heat detector, a flame detector, or the like, and the alarm bell 230 typically strikes a metal bell at high speed by electric power. It can be implemented in a manner.

Decommission command transmitter 300 may be installed in a building, for example, the fire hydrant (30) inside, largely converts the DC voltage (V _DC ) supplied to the bell 230 to the voltage required for the operation of the components Modulating and outputting the unlocking command provided from the power supply circuit unit 320, the transmission control unit 310 and the transmission control unit 310, which control the overall operation of the power supply circuit unit 320 to be supplied to each component. The wireless transmitter 350 may be included.

In the above-described configuration, the input terminal of the power circuit unit 320 may be connected in parallel with the alarm bell 230 with respect to the power switch 240, the power switch 240 under the control of the central control room 220 When is closed, power is also supplied to the transmitting side control unit 310, and then the transmitting side control unit 310 executes a preloaded program to output the unlock command to the wireless transmitting unit 350. However, it is preferable to block illegal intrusion by a fraudulent user by including an identification code unique to the product in a control command output to the wireless transmitter 350 and confirming this in a receiving side controller to be described later.

On the other hand, even when such measures are taken, if an illegal invading prayer person who knows the system to some extent separates the wireless transmitter 350 and connects the power supply (V _DC ) thereto, the emergency door 10 ) May open, exposing security holes. In order to prevent this, in the present invention, the sound detector 330 for detecting the alarm bell sound and the vibration detector 340 for detecting the vibration of the alarm bell 230 are installed around the alarm bell 230, and at least one of them. The apparatus may be implemented to generate a release command only when a detection signal of more than a reference value is input from the input signal. In this case, the sound detector 330 may be implemented by a microphone, and the vibration detector 340 may be implemented by using a piezoelectric element. In this case, the transmitter-side control unit 310 detects an input signal. After A / D conversion, it compares with a predetermined reference value and determines that sound or vibration is detected only when it is large.

Moreover, even in this case, the alarm bell 230 may be misjudged by a momentary malfunction or mischief of children, so that the release command may be issued only when the alarm continues continuously for a predetermined time, for example, 10 seconds or more. In addition, the logical sum calculation function and the timer function of the output signals of the sound detector 330 and the vibration detector 340 may be implemented in a software manner.

FIG. 5 is an electrical block diagram of a release command performing unit in the emergency door automatic unlocking device according to an embodiment of the present invention, and FIG. 6 is an internal functional block diagram of a power supply circuit unit and an operation power supply unit in FIG. All are installed in the casing 110 of the electrostatic crystal unit 100. As shown in FIGS. 5 and 6, the unlock command performing unit 400 includes a power supply circuit unit 420 including a storage battery, an antenna 482 for capturing a radio signal, and a radio signal captured by the antenna 482. Among them, the wireless receiver 480 for demodulating and filtering only signals of a frequency band related to the unlock command, the motor driver 450 for driving the motor 120, the unlocking sensor 460 and the visibility detector 470, and these It comprises a receiving side control unit 410 to control.

In the above-described configuration, the power supply circuit unit 420 may include the charging circuit unit 190 and the overcharge preventing unit 424 and the storage battery 426 to prevent overcharging. In addition, the operation power display unit 430 determines whether the output voltages of the battery 426 and the steady state indicator 438, the low voltage indicator 436, and the battery 426 respectively indicate whether the output voltage is less than or equal to a predetermined reference value. And a display driver 434 for selectively operating the steady state indicator 438 and the low voltage indicator 436 according to an output result of the low voltage detector 432 and the low voltage detector 432 for detecting whether the reference value is less than the reference value. have. In the above configuration, the steady state indicator 438 and the low voltage indicator 436 may be implemented with green and red light emitting diodes, respectively. The unlock detection unit 460 and the visibility detection unit 470 may include the unlock detection switch 136, the visibility detection switch 135, and peripheral elements thereof.

On the other hand, the emergency door 10 is released even if the intention of the illegal intruder to press the fire notification button 214 in accordance with the configuration described above, the human body detection unit to the unlock command execution unit 400 to improve such an irrationality. 440 may be further provided, and the release command may be performed only when a detection signal is input from the human body detector 440. The human body detecting unit 440 may be implemented as an infrared sensor which is widely used in the field of auto lighting or air conditioner.

Reference numeral 490 denotes a corrective command input unit. The corrective command input unit 490 may include a corrective command switch 184 and a peripheral device thereof.

Hereinafter, the operation of the emergency door automatic unlocking device of the present invention will be described in detail.

8 is a flowchart illustrating the operation of the release command transmitter in the emergency door automatic unlocking device according to an embodiment of the present invention, and it is noted that the transmitter-side control unit 310 performs the subject. As shown in FIG. 8, power is supplied to the transmitter-side control unit 310, and at step S10, various variables are initialized including the timer T initialization. Next, in step S12, it is determined whether a detection signal of a predetermined reference value or more is input from the sound detector 330 and the vibration detector 340. As a result of the determination in step S12, when the detection signal of the reference value or more is input from the sound detector 330 or the detection signal of the reference value or more is input from the vibration detection unit 340, the flow proceeds to step S14 to determine the timer T. The value of is increased by 1, and the process proceeds to step S16 again to determine whether the value of the current timer T is a predetermined reference value t, for example, 10 seconds or more. As a result of the determination in step S16, if it is less than 10 seconds, the process returns to step S12. If more than 10 seconds, the process proceeds to step S18. The radio transmitting unit 350 issues a unlock command including a unique identification code stored in advance. Will print to

On the other hand, in step S12, when the detection signal is input only for less than 10 seconds or no input from the sound detector 330 or the vibration detector 340 is in the operation standby state without generating a unlock command.

9 is a flowchart illustrating the operation of the release command execution unit in the automatic emergency door unlocking apparatus according to an embodiment of the present invention, and it is apparent that the receiving side controller 410 performs the subject. As shown in FIG. 9, in step S30, it is determined whether there is a signal input through the wireless receiver 480, and if there is a signal input, the process proceeds to step S32 to extract an identification code from the input signal. Stored in its own memory. Next, in operation S34, each of the sensing units 440, 460, and 470 is activated, that is, operation power is supplied to each of the sensing units 440, 460, and 470.

In step S36 again, it is determined whether the identification code stored in step S32 matches the identification code preassigned to it, that is, whether the corresponding unlock instruction is valid. As a result of the determination in step S36, when the identification codes match, the process proceeds to step S38 to determine whether there is a signal input from the human body detecting unit 440. As a result of the determination in step S38, when the human body detection signal is input, it is determined that an actual emergency situation has occurred, and the lock signal is input from the unlocking detection unit 460 by performing steps S40 to S42. The motor 120 is stopped until it stops. If the identification code does not match in step S36 or the human body detection signal is not input in step S38, it is determined that an actual emergency situation does not occur and the dismissal command is ignored.

On the other hand, when no signal is input from the wireless receiving unit 480 in step S30, the hash command performing unit 400 operates in a sleep mode to reduce power consumption. Specifically, in the sleep mode, the receiving side controller 410 performs only the minimum necessary operations, and the rest of the configuration except for the wireless receiving unit 480, the corrective command input unit 490, and the operation power display unit 430. Power is not turned on. In this state, when a signal is input through the wireless receiving unit 480 or the correction command input unit 490, the receiving side control unit 410 is started to operate normally, and power is supplied under the control of the receiving side control unit 410. Power is also supplied to the remaining detectors 440, 460, and 470 that were not input.

The emergency door automatic unlocking device of the present invention is not limited to the above-described embodiment, and can be variously modified and implemented within the range allowed by the technical idea of the present invention. For example, although the corrective detection switch 135, the unlocked detection switch 136, and the corrective command switch 184 are illustrated as a contact type micro switch, various modifications such as light sensing or magnetic sensing may be implemented. It will be possible to change the installation location as appropriate. Also, the locking and unlocking mechanism may be implemented differently from the above-described embodiment as long as the technical idea of the present invention allows. For example, in the case of manual operation using a key, the mechanism may slide directly due to the rotational force of the key. It may be implemented in a fully manual manner to advance the plate 230 back and forth.

On the other hand, regardless of whether the control signal of the power switch 240 from the central control room 220 is generated in relation to the power supply may be to always supply power to the receiving side control unit 310 of the unlock command transmitter 300. If it is difficult to draw the wire from the commercial AC power source, the operation power of the unlock command execution unit 400 may be implemented as a battery instead of the storage battery 426, a method using both the storage battery 426 and the battery. You can also change the power supply.

In relation to the type of wireless signal, a high frequency signal or an infrared signal may be used. In the case of using an infrared signal, the antennas 352 and 482 in the above-described embodiment are not required. Installation positions of the wireless transmitter 350 and the wireless receiver 480 should be selected so that a light transmission path is sufficiently secured between the wireless transmitter 350 and the wireless receiver 480.

Finally, the release command may be delivered by wire, in which case the configuration of the device will be greatly simplified.

According to the emergency door automatic unlocking device of the present invention as described above, there is an effect to ensure safety through the emergency exit by automatically unlocking the emergency door in the event of an emergency such as a fire.

Claims (10)

An electronic well means installed between the emergency door of the building and the door frame, wherein at least the coasting operation is performed by electric power; Fire notification means installed in place of the building to notify the occurrence of fire; Unlock command sending means for issuing a release command of said emergency door by being notified of the fire occurrence from said fire alarm means; And a unlocking control means for receiving a unlocking command from the unlocking command transmitting means and outputting a control signal to the electronic unlocking means to perform the unlocking operation. 2. The apparatus of claim 1, wherein the decommissioning command transmitting means comprises a wireless transmission unit for transmitting the decommissioning command wirelessly, and a transmission side control unit for notifying the fact of the fire from the decommissioning command transmission means and outputting an operation control signal to the wireless transmission unit. Lose, The unlocking control means includes a radio receiver for receiving a unlock command from the radio transmitter and a receiving side controller for outputting a unlock operation control signal to the electronic unlocking means in accordance with the unlock command received from the radio receiver. Emergency door automatic dismantling device. 3. The fire notification means according to claim 2, Fire detectors installed in place in the building; Fire notification button installed in place of the building; Alarm bells to alarm the occurrence of a fire; A power switch for controlling power supplied to the alarm bell; And an OR gate for outputting an intermittent control signal of the power switch by ORing the output signal of the fire detector and the fire notification button. The emergency door automatic unlocking device according to claim 3, wherein the unlock command transmitting means is connected to the power switch in parallel with the alarm bell and is supplied with power through the power switch. The method of claim 4, wherein The release command transmitting means further comprises a sound detection unit for detecting the sound of the alarm bell and a vibration detection unit for detecting the vibration of the alarm bell, And the transmitting side controller outputs an operation control signal to the wireless transmitter only when a detection signal is input from either the sound detector or the vibration detector. The method of claim 5, wherein the transmitting side control unit outputs an operation control signal to the wireless transmitter only when the detection signal from any one of the sound detection unit or the vibration detection unit is input for more than a predetermined time. Emergency door automatic unlocking device. According to claim 6, The coast control means further comprises a human body sensing unit for detecting the presence of the human body around the emergency door, And the receiving side controller is configured to output the unlock operation control signal to the electronic stop means only when a unlock command is input from the wireless receiver and a detection signal is input from the human body detecting unit. 8. The emergency door automatic unlocking device according to claim 7, wherein the unlocking control means further comprises a low voltage detecting unit for detecting whether the operating power of the electronic unlocking means is low. 9. The apparatus of claim 8, wherein the electronic device includes: a latch installed at the emergency door and having a free end functioning as a power supply supply end; A power supply terminal installed in the door frame and contacting the power supply terminal to supply power to the power supply terminal; And an accumulator battery for storing electric power supplied through the power supply and supply stage. 10. The method of claim 9, wherein the operation control signal output from the transmitting side control unit includes a unique identification code, the receiving side control unit compares the unique identification code received through the wireless receiving unit with its own unique identification code pre-stored And outputting a disengagement operation control signal to the electronically fixed means only when there is a match.