CN111870851A - Fire emergency linkage device for nine-small places - Google Patents

Fire emergency linkage device for nine-small places Download PDF

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Publication number
CN111870851A
CN111870851A CN202010729480.0A CN202010729480A CN111870851A CN 111870851 A CN111870851 A CN 111870851A CN 202010729480 A CN202010729480 A CN 202010729480A CN 111870851 A CN111870851 A CN 111870851A
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CN
China
Prior art keywords
control system
rolling door
alarm
controller
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010729480.0A
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Chinese (zh)
Inventor
郭巍
高金明
梁军胜
钟宣
王帆浩
刘姣
尹林
郭妍婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Xinyi Security Technology Co ltd
Original Assignee
Sichuan Xinyi Security Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Xinyi Security Technology Co ltd filed Critical Sichuan Xinyi Security Technology Co ltd
Priority to CN202010729480.0A priority Critical patent/CN111870851A/en
Publication of CN111870851A publication Critical patent/CN111870851A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • A62C31/02Nozzles specially adapted for fire-extinguishing
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/36Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • E06B9/70Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/06Electric actuation of the alarm, e.g. using a thermally-operated switch
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means

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  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire Alarms (AREA)

Abstract

The invention discloses a fire emergency linkage device for nine small places, which comprises a detection system, a control system and an execution system, wherein the detection system is used for detecting smoke and temperature and is connected with the input end of the control system so as to transmit information to the control system; the control system is used for receiving and processing the signals transmitted by the detection system, sending the processed signals to the execution system and controlling the execution system to work, and comprises a controller U1; the execution system is used for receiving signals of the control system to implement fire emergency linkage and reduce damage caused by fire. The designed emergency linkage device is simple and practical, and can automatically open a gate of a place by matching the detection system, the control system and the execution system in time when a fire disaster occurs, provide escape channels for personnel in the place, spray the interior of the place and reduce the damage caused by the fire disaster.

Description

Fire emergency linkage device for nine-small places
Technical Field
The invention relates to the technical field of fire emergency in nine small places, in particular to a fire emergency linkage device for the nine small places.
Background
The 'nine-small' place is a general name of a small school or kindergarten, a small hospital, a small shop, a small catering place, a small hotel, a small dance entertainment place, a small internet bar, a small beauty bathing place and a small production and processing enterprise. With the economic development in main urban areas, the number of 'nine-small' places is continuously increased, and the 'nine-small' places are more in points and wide in area and are scattered in streets and villages, thousands of small-sized places are arranged in individual places, and dozens of small places are arranged in few places, and part of the nine-small places are arranged in residential areas or even residential courtyards, so that general supervision and inspection are difficult to hunt and cause the loss of control of many places. And the safety consciousness of the places is slight, safety measures are not in place, serious potential safety hazard problems exist, personnel are dense, and major casualties and property loss are caused once a fire accident happens. Therefore, the device is very important for providing a practical device which can automatically open the escape passage and open the gate of the place when a fire hazard occurs and early warning is timely performed, and provides a life passage for people in the place to escape and save self.
Disclosure of Invention
The invention aims to: in order to overcome the defects, the fire emergency linkage device for the nine-small places can timely perform early warning when a fire emergency occurs, and automatically opens an escape passage to ensure the safety of personnel in the places.
In order to achieve the purpose, the technical scheme of the invention is as follows: a fire emergency linkage device for nine small places comprises a detection system, a control system and an execution system, wherein the detection system is used for detecting smoke and temperature and is connected with the input end of the control system so as to transmit information to the control system; the control system is used for receiving and processing the signals transmitted by the detection system, sending the processed signals to the execution system and controlling the execution system to work, and comprises a controller U1; the execution system is used for receiving signals of the control system to implement fire emergency linkage and reduce damage caused by fire.
Further, the detection system comprises a smoke detector and a temperature detector which are respectively connected with XO-X1 interfaces of the controller U1 through switches K3-K4; the execution system comprises an alarm device, a spraying device and a channel opening and closing device, wherein the alarm device comprises an alarm, a smoke alarm indicator lamp HL1 and a temperature alarm indicator lamp HL2, the alarm device is connected between a U1 voltage interface and a Y1 interface, the smoke alarm indicator lamp HL1 is connected between a U1 voltage interface and a Y10 interface, and the temperature alarm indicator lamp HL2 is connected between a U1 voltage interface and a Y11 interface; the spraying device comprises an electromagnetic valve and a nozzle, the electromagnetic valve is connected with the nozzle through a pipeline and is connected with a Y3 interface of a controller U1 through an intermediate relay KA2, a contact of the intermediate relay KA1 is also connected to one end of a thermal relay DT2, the other end of the thermal relay DT2 is connected to one end of a DEL, and the other end of the DEL is connected to an external power line through a switch SA and a fuse QF; the channel opening and closing device comprises a channel rolling door and two electric push rods, the two electric push rods are respectively arranged at the bottom of the channel rolling door, a door lock switch of the channel rolling door is connected with the controller U1 through switches K1-K2, and the electric push rods are connected between a voltage interface of the controller U1 and interfaces Y4-Y5.
Furthermore, each electric push rod is also provided with a Z-shaped connecting piece, each connecting piece comprises an upper transverse plate, a vertical plate and a lower transverse plate which are integrally formed, the vertical plates are used for connecting the upper transverse plate and the lower transverse plate, the upper transverse plates are connected with the movable ends of the electric push rods, and the lower transverse plates are used for jacking the channel rolling door.
Furthermore, an intermediate piece is arranged between the connecting pieces and is a groove strip, the groove strip comprises a bottom and a side wall, and when the channel rolling door is in a closed state, the bottom of the channel rolling door is placed at the bottom of the groove strip.
Due to the adoption of the scheme, the invention has the beneficial effects that: the invention solves the defects of the prior art, provides a fire emergency linkage device for nine small places, and has the advantages that:
(1) the designed emergency linkage device is simple and practical, and can automatically open a gate of a place by matching the detection system, the control system and the execution system in time when a fire disaster occurs, provide escape channels for personnel in the place, spray the interior of the place and reduce the damage caused by the fire disaster.
(2) According to the invention, the middle piece is arranged below the passage rolling door, so that the situation that in the fire disaster process, the personnel escaping from the rolling door are hit by the door sheet which is burnt and has high temperature, the personnel are injured by the door sheet in the escaping process and are scalded at high temperature is avoided, and the life threat of the escaping personnel is reduced.
Drawings
FIG. 1 is an electrical schematic of the emergency linkage of the present invention.
FIG. 2 is a side view of the power push rod of the present invention in connection with a pathway rollup door when activated.
Fig. 3 is a side view of the electric push rod of the present invention connected to the passageway-rolling door when it is pushed.
Fig. 4 is a schematic view of the connection of the intermediate member of the present invention to the passage shutter.
Reference numerals: 1-channel rolling door, 2-electric push rod, 3-connecting piece and 4-middle piece.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1-4, a fire emergency linkage device for nine small places comprises a detection system, a control system and an execution system, wherein the detection system is used for detecting smoke and temperature and is connected with the input end of the control system so as to transmit information to the control system; the control system is used for receiving and processing signals transmitted by the detection system, sending the processed signals to the execution system and controlling the execution system to work, and comprises a controller U1, wherein the controller U1 is a PLC (programmable logic controller) of which the model is DYP-14EC00T 3; the execution system is used for receiving signals of the control system to implement fire emergency linkage and reduce damage caused by fire.
Specifically, the detection system comprises a smoke detector and a temperature detector which are connected with XO-X1 interfaces of a controller U1 through switches K3-K4 respectively. The execution system comprises an alarm device, a spraying device and a channel opening and closing device, wherein the alarm device comprises an alarm, a smoke alarm indicator lamp HL1 and a temperature alarm indicator lamp HL2, the alarm device is connected between a U1 voltage interface and a Y1 interface, the smoke alarm indicator lamp HL1 is connected between a U1 voltage interface and a Y10 interface, and the temperature alarm indicator lamp HL2 is connected between a U1 voltage interface and a Y11 interface. The spraying device comprises an electromagnetic valve and a nozzle, the electromagnetic valve is connected with the nozzle through a pipeline, the electromagnetic valve is connected with a Y3 interface of a controller U1 through an intermediate relay KA2, a contact of the intermediate relay KA1 is also connected to one end of a thermal relay DT2, the other end of the thermal relay DT2 is connected to one end of a DEL, and the other end of the DEL is connected to an external power line through a switch SA and a fuse QF. The channel opening and closing device comprises a channel rolling door 1 and two electric push rods 2, the two electric push rods 2 are respectively arranged at the bottom of the channel rolling door 1, a door lock switch of the channel rolling door 1 is connected with the controller U1 through switches K1-K2, and the electric push rods 2 are connected between a voltage interface of the controller U1 and interfaces Y4-Y5. Because electric putter 2 is the height that has when stretching out, in order to avoid causing the influence to closing of passageway rolling slats door 1, still be equipped with Z type connecting piece 3 on the electric putter 2 respectively, connecting piece 3 includes integrated into one piece's last diaphragm, riser and lower diaphragm, and the riser is used for connecting upper and lower diaphragm, goes up the diaphragm and is connected with electric putter 2 movable end, and the lower diaphragm is used for jacking rolling slats door passageway 1, and electric putter 2 can set up the side at passageway rolling slats door 1 so, avoids it to bring the influence to closing of passageway rolling slats door 1. The upper transverse plate and the vertical plate can rise along with the pushing of the electric push rod 2, and the lower transverse plate integrated with the upper transverse plate rises, so that the channel rolling door 1 can be opened by jacking the rolling door through the lower transverse plate, and people in the place can escape.
The working principle of the linkage device is as follows: when the smoke detector detects that smoke in the environment reaches a set alarm value, the smoke detector sends a smoke alarm signal to the control system, namely sends a high level, then the controller U1 outputs a signal to the alarm device in the control system, the alarm receives the signal when powered on to send an alarm sound, and the smoke alarm indicates that the signal is powered on to carry out smoke alarm indication.
Further, when the ambient temperature is higher than the set value (the set temperature is 68 ℃ in this embodiment), the temperature detector sends a temperature alarm signal to the control system, that is, sends a high level, then the controller U1 in the control system outputs a signal to the alarm device, the alarm receives the signal to send an alarm sound, and the temperature alarm indicates that the signal is received to perform a high temperature alarm indication.
Further, when the smoke detector and the temperature detector simultaneously send out alarm signals to the control system, namely the controller U1 receives two high level signals, the controller U1 outputs signals to the alarm device, namely, the devices in the alarm device all obtain a high level, and the devices all start to work, namely, the alarm device is powered on to receive the signals to send out alarm sound, and the temperature alarm indication and the smoke alarm indication are powered on to receive the signals to carry out corresponding alarm indication. While the controller U1 also outputs signals to the spray and aisle opening and closing devices to activate the spray and aisle opening and closing devices (when the aisle rolling door 1 is closed). Then the solenoid valve circular telegram this moment, the nozzle begins to spray water to carry out conflagration emergency rescue, reduce the safety threat that smog flame and high temperature brought the inside personnel in place in the conflagration emergence process. Meanwhile, the door lock of the channel rolling door 1 is signaled, the channel rolling door is automatically opened, the electric push rod 2 is powered on, the channel rolling door starts to work to drive the connecting piece 3 to move upwards, and the lower transverse plate can upwards push the channel rolling door 1, so that personnel in the place can escape under the emergency fire condition. And after the failure is handled, by pressing the switch SB1, the alarm can be released, so that each system is restored to the original state.
Further, when a fire emergency happens, the roller shutter door is pushed from the bottom through the electric push rod 2 and opened, and indoor personnel can conveniently escape. However, the rolling door is formed by connecting a plurality of movable pieces, in the fire process, the door pieces are extremely easy to burn, so that part of the door pieces can fall downwards, the burnt door pieces have high temperature, the personnel escaping from the rolling door are extremely easy to smash, the personnel are injured by smashing in the escaping process and are scalded by high temperature, and the life of the escaping personnel is greatly threatened. According to the invention, the middle part 4 is arranged between the two connecting parts 3, the middle part 4 is a groove strip, the groove strip comprises a bottom part and a side wall, in a normally closed state, the bottom part of the channel rolling door 1 is placed on the bottom part of the groove strip, so that the groove strip can rise along with the upward pushing of the channel rolling door 1 by the connecting parts 3, if the door sheet is accidentally burnt off and falls off by fire, the falling door sheet can be caught by the groove strip, the groove strip can support the door sheet, the burnt door curtain is prevented from falling from a high place and smashing an escape person below, and the groove strip is made of heat-resistant steel.
Parts not described in the above modes can be realized by adopting or referring to the prior art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides an emergent aggregate unit of conflagration for nine little places which characterized in that: the smoke temperature detection system comprises a detection system, a control system and an execution system, wherein the detection system is used for detecting smoke and temperature and is connected with the input end of the control system so as to transmit information to the control system; the control system is used for receiving and processing the signals transmitted by the detection system, sending the processed signals to the execution system and controlling the execution system to work, and comprises a controller U1; the execution system is used for receiving signals of the control system to implement fire emergency linkage and reduce damage caused by fire.
2. The fire emergency linkage device for nine small places according to claim 1, characterized in that: the detection system comprises a smoke detector and a temperature detector which are respectively connected with XO-X1 interfaces of a controller U1 through switches K3-K4; the execution system comprises an alarm device, a spraying device and a channel opening and closing device, wherein the alarm device comprises an alarm, a smoke alarm indicator lamp HL1 and a temperature alarm indicator lamp HL2, the alarm device is connected between a U1 voltage interface and a Y1 interface, the smoke alarm indicator lamp HL1 is connected between a U1 voltage interface and a Y10 interface, and the temperature alarm indicator lamp HL2 is connected between a U1 voltage interface and a Y11 interface; the spraying device comprises an electromagnetic valve and a nozzle, the electromagnetic valve is connected with the nozzle through a pipeline and is connected with a Y3 interface of a controller U1 through an intermediate relay KA2, a contact of the intermediate relay KA1 is also connected to one end of a thermal relay DT2, the other end of the thermal relay DT2 is connected to one end of a DEL, and the other end of the DEL is connected to an external power line through a switch SA and a fuse QF; the channel opening and closing device comprises a channel rolling door (1) and two electric push rods (2), the two electric push rods (2) are respectively arranged at the bottom of the channel rolling door (1), a door lock switch of the channel rolling door (1) is connected with the controller U1 through switches K1-K2, and the electric push rods (2) are connected between a voltage interface of the controller U1 and Y4-Y5 interfaces.
3. The fire emergency linkage device for nine small places according to claim 2, characterized in that: each electric push rod (2) is further provided with a Z-shaped connecting piece (3), each connecting piece (3) comprises an upper transverse plate, a vertical plate and a lower transverse plate which are integrally formed, each vertical plate is used for connecting the upper transverse plate and the lower transverse plate, each upper transverse plate is connected with the movable end of each electric push rod (2), and each lower transverse plate is used for jacking the channel rolling door (1).
4. The fire emergency linkage device for nine small places according to claim 3, characterized in that: the channel rolling door is characterized in that an intermediate piece (4) is arranged between the connecting pieces (3), the intermediate piece (4) is a groove strip, the groove strip comprises a bottom and a side wall, and when the channel rolling door (1) is in a closed state, the bottom of the channel rolling door is placed at the bottom of the groove strip.
CN202010729480.0A 2020-07-27 2020-07-27 Fire emergency linkage device for nine-small places Pending CN111870851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010729480.0A CN111870851A (en) 2020-07-27 2020-07-27 Fire emergency linkage device for nine-small places

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010729480.0A CN111870851A (en) 2020-07-27 2020-07-27 Fire emergency linkage device for nine-small places

Publications (1)

Publication Number Publication Date
CN111870851A true CN111870851A (en) 2020-11-03

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CN202010729480.0A Pending CN111870851A (en) 2020-07-27 2020-07-27 Fire emergency linkage device for nine-small places

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202715163U (en) * 2012-08-28 2013-02-06 中国五冶集团有限公司 Automatic fire fighting system
CN106652301A (en) * 2016-12-23 2017-05-10 北京富邦智慧物联科技有限公司 Fire hazard coordinated fireproof door remote monitoring system and method thereof
CN208294404U (en) * 2018-05-29 2018-12-28 福建美赛德门业科技有限公司 A kind of collet
CN110485847A (en) * 2019-08-12 2019-11-22 安徽皖泰门业科技有限公司 A kind of lifting device of lever gear door
CN110969799A (en) * 2019-12-06 2020-04-07 西安鼎蓝通信技术有限公司 Indoor fire remote alarm system and indoor fire remote alarm method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202715163U (en) * 2012-08-28 2013-02-06 中国五冶集团有限公司 Automatic fire fighting system
CN106652301A (en) * 2016-12-23 2017-05-10 北京富邦智慧物联科技有限公司 Fire hazard coordinated fireproof door remote monitoring system and method thereof
CN208294404U (en) * 2018-05-29 2018-12-28 福建美赛德门业科技有限公司 A kind of collet
CN110485847A (en) * 2019-08-12 2019-11-22 安徽皖泰门业科技有限公司 A kind of lifting device of lever gear door
CN110969799A (en) * 2019-12-06 2020-04-07 西安鼎蓝通信技术有限公司 Indoor fire remote alarm system and indoor fire remote alarm method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孙军田: "《火灾自动报警系统》", 31 March 2017, 中国人民公安大学出版社 *
张仕军,王新成: "《设备控制技术》", 31 December 2007, 中国地质大学出版社 *

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