CN208975033U - A kind of external wall of building fire plant - Google Patents
A kind of external wall of building fire plant Download PDFInfo
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- CN208975033U CN208975033U CN201821572308.3U CN201821572308U CN208975033U CN 208975033 U CN208975033 U CN 208975033U CN 201821572308 U CN201821572308 U CN 201821572308U CN 208975033 U CN208975033 U CN 208975033U
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Abstract
The utility model discloses a kind of external wall of building fire plants, including exterior wall, fire sensor, slide and fire extinguishing douche base, the side of the exterior wall is uniformly provided with sliding recess, center inside sliding recess is mounted on sliding rail, the two sides of sliding rail are equipped with sliding slot, the inside of sliding rail two sides sliding recess is equipped with slide, water tank is installed inside the slide, compartment is installed inside the water tank, the center of compartment is vertically equipped with the second shaft, one end of second shaft is equipped with spray seat, and the edge sprayed on the outside of seat is uniformly equipped with fire extinguishing douche base.The utility model is by being equipped with exterior wall, fire sensor, slide and fire extinguishing douche base, the center of spray seat side boss is equipped with alarm device, when sensing fire signal convenient for fire sensor, single-chip microcontroller control alarm device sounds an alarm, effectively remind resident inside building that fire occurs, convenient for reminding resident to evacuate in time, convenient for the use of device.
Description
Technical field
The utility model relates to exterior wall fire plant technical field, specially a kind of external wall of building fire plant.
Background technique
With the continuous development of society and the continuous improvement of living standards of the people, people are more and more stronger to fire-fighting awareness of safety
Strong, more and more extinguishers are widely used in daily life, convenient for that can carry out reply in time when fire dangerous situation occurs
Measure reduces injury of the dangerous situation to lives and properties.
In daily life, the exterior wall of most of building is designed with insulating layer, and when fire occurs for floor, insulating layer is vulnerable to warm
It lights, causes the fire spreading of flooring or more, existing fire fighting device can not put out a fire to external wall of building, it is easier that fire is sent out
It can not timely be succoured when raw, and the most structure of existing fire plant is fixed, be not easy to put out high-rise fire, it is existing
Some most use scopes of spray fire plant are small, can not large area put out fire source, it is easier that fire spreading, easily delays relief
Time, while existing fire plant can not sound an alarm in time, personnel in building can not be warned in time to evacuate in kindling,
Easily cause casualties.
Utility model content
The purpose of this utility model is to provide a kind of external wall of building fire plants, to solve to propose in above-mentioned background technique
The most use scope of fire plant it is small, can not large area put out fire source, it is easier that fire spreading, easily delays rescue time and asks
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of external wall of building fire plant, including outer
Wall, fire sensor, slide and fire extinguishing douche base, the side of the exterior wall are uniformly provided with sliding recess, in sliding recess
The center in portion is mounted on sliding rail, and the two sides of sliding rail are equipped with sliding slot, and are respectively mounted on the exterior wall of sliding recess two sides with teeth
Item, the inside of sliding rail two sides sliding recess are equipped with slide, and slide one end is uniformly equipped with sliding block, and sliding block is sliding with sliding slot
Dynamic connection, and the both ends inside slide close to exterior wall side have extended transversely through first rotating shaft, the both ends of first rotating shaft are pacified
Equipped with wheel, wheel all extends to the side of slide and is intermeshed with rack gear, and the center of first rotating shaft is mounted on worm screw, institute
It states the center inside slide far from first rotating shaft side and water tank is installed, the inside of water tank one end slide is equipped with monolithic
Machine, and water tank is equipped with first motor far from one end of single-chip microcontroller, first motor is described by conducting wire and monolithic mechatronics
The center of water tank interior side is equipped with compartment, and the center of compartment is vertically equipped with the second shaft, and the one of the second shaft
End extends to the inside of water tank across compartment, and is equipped with spray seat, and the one end for spraying seat passes through water tank and extends to
The outside of slide, and second gear is installed in the second shaft inside compartment, the output end of first motor extends to waterproof
The inside of box is simultaneously equipped with first gear, and first gear and second gear are intermeshed, the center installation of the spray seat side
There is boss, the center of boss is equipped with alarm device, and alarm device is electrically connected by conducting wire and single-chip microcontroller, and sprays the side on the outside of seat
Edge is uniformly equipped with fire extinguishing douche base, and fire extinguishing douche base is all uniformly equipped with spray head close to the side of slide, inside the slide
The second motor is installed close to the center of sliding rail side, the second motor is electrically connected by conducting wire and single-chip microcontroller, the second motor
Output end extends to the inside of slide and is fixedly connected with water tank, and turbine, turbine are equipped on the output end of the second motor
It is intermeshed with worm screw, the bottom on the outside of the slide is mounted on connection tube socket, and the one end for connecting tube socket all extends to slide
Inside and be fixedly connected with the bottom of water tank, and fire sensor is all uniformly installed on the exterior wall of rack gear side, fire
The output end of calamity sensor is electrically connected with the input terminal of single-chip microcontroller.
Preferably, the rack gear and fire sensor are symmetrical arranged about sliding recess.
Preferably, one end of spray seat is uniformly provided with inlet opening, and the connection of water tank and spray seat inside the slide
Place is mounted on sealing ring, and the junction of the output end and compartment of the second shaft and first motor is mounted on sealing ring.
Preferably, the bottom on the outside of the connection tube socket is equipped with external screw thread.
Preferably, the sliding block and sliding slot cooperate, and slide constitutes slide construction by sliding block and sliding slot.
Preferably, gear drive knot is constituted by first gear and second gear between the first motor and the second shaft
Structure.
Compared with prior art, the utility model has the beneficial effects that the external wall of building fire plant is outer by being provided with
Wall, fire sensor, slide and fire extinguishing douche base, the side of exterior wall are uniformly provided with sliding recess, in sliding recess inside
The two sides of centre sliding rail are equipped with sliding slot, are mounted on rack gear on the exterior wall of sliding recess two sides, on the exterior wall of rack gear side
Fire sensor is all uniformly installed, the inside of sliding rail two sides sliding recess is equipped with slide, and slide one end is uniformly equipped with
Sliding block, sliding block are fixedly connected with sliding slot, are moved to required position in sliding slot internal slide by sliding block convenient for slide convenient for device
It sets and puts out a fire, be suitable for the exterior wall fire-fighting of various height building convenient for device, the both ends of close exterior wall side inside slide
First rotating shaft is extended transversely through, the both ends of first rotating shaft are mounted on wheel, and wheel all extends to the side of slide and and tooth
Item intermeshing, the center of first rotating shaft is mounted on worm screw, and the center inside slide close to sliding rail side is equipped with second
Motor is equipped with turbine on the output end of the second motor, and turbine and worm screw are intermeshed, and drives turbine to turn convenient for the second motor
It is dynamic, so that worm screw drives first rotating shaft to be rotated, so that wheel travels on rack gear, so that slide is moved to corresponding fire and passes
It puts out a fire at the position of sensor, convenient for the use of device, water tank one end is equipped with first motor inside slide, in water tank
The center of portion's compartment is vertically equipped with the second shaft, and one end of the second shaft passes through the inside that compartment extends to water tank,
And spray seat is installed, spray head is all uniformly installed on fire extinguishing douche base on the outside of spray seat, and the second shaft inside compartment
On second gear is installed, the output end of first motor extends to the inside of compartment and is equipped with first gear, first gear
It is intermeshed with second gear, first gear rotation is driven convenient for first motor, to drive second gear and the second shaft
Rotated so that spray seat rotated so that be pumped into fire water by fire extinguishing watering spray head in four bulks sprinkling
Onto outer surface of wall, convenient for carrying out large area sprinkling fire-distinguishing to the position for generating fire burning, fire spreading is reduced, convenient for increasing
The fire-fighting of external wall of building, convenient for the use of device, the center of the utility model spray seat side boss is equipped with alarm device, just
When fire sensor senses fire signal, single-chip microcontroller control alarm device is sounded an alarm, and effectively reminds resident's hair inside building
It lights a fire calamity, convenient for reminding resident to evacuate in time, convenient for the use of device.
Detailed description of the invention
Fig. 1 is the device side structure schematic view of the utility model；
Fig. 2 is that the device side of the utility model cuts open structural schematic diagram；
Fig. 3 is enlarged structure schematic diagram at A in Fig. 2 of the utility model；
Fig. 4 is the system block diagram of the utility model.
In figure: 1, exterior wall；2, rack gear；3, sliding rail；4, sliding recess；5, fire sensor；6, slide；7, boss；8,
Fire extinguishing douche base；9, tube socket is connected；10, sliding block；11, sliding slot；12, first rotating shaft；13, first motor；14, water tank；15, into
Water hole；16, seat is sprayed；17, alarm device；18, spray head；19, single-chip microcontroller；20, turbine；21, wheel；22, worm screw；23, the second electricity
Machine；24, compartment；25, first gear；26, second gear；27, the second shaft.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, a kind of embodiment provided by the utility model: a kind of external wall of building fire plant, including exterior wall
Body 1, fire sensor 5, slide 6 and fire extinguishing douche base 8, the side of exterior wall 1 are uniformly provided with sliding recess 4, in sliding recess 4
The center in portion is mounted on sliding rail 3, and the two sides of sliding rail 3 are equipped with sliding slot 11, and pacify on the exterior wall 1 of 4 two sides of sliding recess
Equipped with rack gear 2, the inside of 3 two sides sliding recess 4 of sliding rail is equipped with slide 6, and 6 one end of slide is uniformly equipped with sliding block 10, sliding block
10 are slidably connected with sliding slot 11, and sliding block 10 and sliding slot 11 cooperate, and slide 6 constitutes sliding knot by sliding block 10 and sliding slot 11
Structure is moved to required position convenient for device and put out a fire, convenient for dress by sliding block 10 convenient for slide 6 in 11 internal slide of sliding slot
Set the exterior wall fire-fighting suitable for various height building, and 6 inside of slide has extended transversely through the close to the both ends of 1 side of exterior wall
One shaft 12, the both ends of first rotating shaft 12 are mounted on wheel 21, wheel 21 all extend to the side of slide 6 and with 2 phase of rack gear
Mutually engagement, the center of first rotating shaft 12 are mounted on worm screw 22, and 6 inside of slide is equipped with far from the center of 12 side of first rotating shaft
Water tank 14, the inside of 14 one end slide 6 of water tank are equipped with single-chip microcontroller 19, and the model of single-chip microcontroller 19 can be AT89S51, and store up
Water tank 14 is equipped with first motor 13 far from one end of single-chip microcontroller 19, and the model of first motor 13 can be Y90S-2, first motor
13 are electrically connected by conducting wire with single-chip microcontroller 19, and the center of 14 interior side of water tank is equipped with compartment 24, in compartment 24
Centre is vertically equipped with the second shaft 27, and one end of the second shaft 27 passes through compartment 24 and extends to the inside of water tank 14, and pacifies
Equipped with spray seat 16, one end of spray seat 16 passes through water tank 14 and extends to the outside of slide 6, sprays seat 16 inside slide 6
One end be uniformly provided with inlet opening 15, and the junction of water tank 14 and spray seat 16 is mounted on sealing ring, the second shaft 27
It is mounted on sealing ring with the output end of first motor 13 and the junction of compartment 24, convenient for increasing by second turn by sealing ring
Leakproofness between the output end and compartment 24 of axis 27 and first motor 13, water body enters waterproof in the avoiding device course of work
Inside box 24, convenient for increasing the service life of device, and second gear 26 is installed in the second shaft 27 inside compartment 24,
The output end of first motor 13 extends to the inside of compartment 24 and is equipped with first gear 25, first gear 25 and second gear
26 intermeshings, constitute gear drive knot by first gear 25 and second gear 26 between first motor 13 and the second shaft 27
Structure drives first gear 25 to rotate convenient for first motor 13, so that second gear 26 and the second shaft 27 is driven to be rotated,
So that spray seat 16 is rotated, convenient for carrying out large area sprinkling fire-distinguishing to the position for generating fire burning, convenient for increasing building
The fire-fighting of exterior wall, convenient for the use of device, the center for spraying 16 side of seat is equipped with boss 7, and the center of boss 7 is equipped with police
Device 17 is reported, alarm device 17 is electrically connected by conducting wire and single-chip microcontroller 19, and the edge for spraying 16 outside of seat is uniformly equipped with fire extinguishing
Douche base 8, fire extinguishing douche base 8 are all uniformly equipped with spray head 18 close to the side of slide 6, and 6 inside of slide is close to 3 side of sliding rail
Center is equipped with the second motor 23, and the model of the second motor 23 can be Y90S-2, and the second motor 23 passes through conducting wire and single-chip microcontroller 19
It is electrically connected, the output end of the second motor 23 extends to the inside of slide 6 and is fixedly connected with water tank 14, and the second motor 23
Output end on turbine 20 is installed, turbine 20 and worm screw 22 are intermeshed, and the bottom in 6 outside of slide is mounted on connection tube socket
9, one end of connection tube socket 9 all extends to the inside of slide 6 and is fixedly connected with the bottom of water tank 14,9 outside of connection tube socket
Bottom be equipped with external screw thread, convenient for connection tube socket 9 be fixedly connected with fire extinguisher canvas hose, convenient for external wall of building progress fire-fighting fire extinguishing,
And fire sensor 5 is all uniformly installed on the exterior wall 1 of 2 side of rack gear, the model of fire sensor 5 can be SN-828-
3PL, the output end of fire sensor 5 are electrically connected with the input terminal of single-chip microcontroller 19, rack gear 2 and fire sensor 5 about
Sliding recess 4 is symmetrical arranged, and is moved between 4 inside of groove and rack gear 2 convenient for slide 6, is sensed convenient for device by fire
Device 5 incudes whether exterior wall occurs fire, and fire sensor 5 can incude in time fire location and control slide when on fire convenient for exterior wall
6, which slide into corresponding position, puts out a fire, convenient for the use of device.
Working principle: in use, being first fixedly connected with external water pipe with tube socket 9 is connect, external power supply is connected, building are worked as
When fire occurs for exterior wall, fire sensor 5 issues signal, so that single-chip microcontroller 19 controls the work of the second motor 23, so that the second electricity
Machine 23 drives turbine 20 to rotate, so that worm screw drives first rotating shaft 12 to be rotated, so that wheel 21 travels on rack gear 2, makes
It obtains slide 6 to be moved at the position of corresponding fire sensor 5, is then pumped into fire demand water inside slide 6 by connection tube socket 9
Water tank 14 in, and by single-chip microcontroller 19 control first motor 13 work so that first motor 13 drive 25 turns of first gear
It is dynamic, drive second gear 26 and the second shaft 27 to be rotated, so that spray seat 16 is rotated, so that water tank 14
Internal fire water is sprayed by fire extinguishing watering in 8 spray head 18, and External Wall metope ignition point carries out sprinkling fire-distinguishing, spray seat 16
Rotation goes out to many places ignition point convenient for device so that the fire water that spray head 18 sprays out is spilt in four bulks to outer surface of wall
Fire effectively increases fire extinguishing range, avoids the sprawling of the intensity of a fire, slide 6 in moving process, sliding block 10 in 11 internal slide of sliding slot,
It is moved convenient for slide 6, convenient for the use of device, when fire sensor 5 senses fire signal, single-chip microcontroller 19 controls alarm
Device 17 sounds an alarm, and effectively reminds resident inside building that fire occurs, convenient for reminding resident to evacuate in time, convenient for making for device
With.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (6)
1. a kind of external wall of building fire plant, including exterior wall (1), fire sensor (5), slide (6) and fire extinguishing douche base
(8), it is characterised in that: the side of the exterior wall (1) is uniformly provided with sliding recess (4), and the internal center of sliding recess (4) is
It is equipped with sliding rail (3), the two sides of sliding rail (3) are equipped with sliding slot (11), and are pacified on the exterior wall (1) of sliding recess (4) two sides
Equipped with rack gear (2), the inside of sliding rail (3) the two sides sliding recess (4) is equipped with slide (6), and slide (6) one end is uniformly installed
Have sliding block (10), sliding block (10) is slidably connected with sliding slot (11), and the internal both ends close to exterior wall (1) side of slide (6)
It has extended transversely through first rotating shaft (12), the both ends of first rotating shaft (12) are mounted on wheel (21), and wheel (21) all extends to
The side of slide (6) is simultaneously intermeshed with rack gear (2), and the center of first rotating shaft (12) is mounted on worm screw (22), the slide
(6) the internal center far from first rotating shaft (12) side is equipped with water tank (14), the inside of water tank (14) one end slide (6)
It is equipped with single-chip microcontroller (19), and water tank (14) is equipped with first motor (13), first motor far from the one end of single-chip microcontroller (19)
(13) it being electrically connected by conducting wire with single-chip microcontroller (19), the center of water tank (14) interior side is equipped with compartment (24),
The center of compartment (24) is vertically equipped with the second shaft (27), and one end of the second shaft (27) passes through compartment (24) and extends to
The inside of water tank (14), and spray seat (16) is installed, one end of spray seat (16) passes through water tank (14) and extends to cunning
The outside of seat (6), and be equipped with second gear (26) in the second shaft (27) of compartment (24) inside, first motor (13)
Output end extends to the inside of compartment (24) and is equipped with first gear (25), first gear (25) and second gear (26) phase
The center of mutually engagement, described spray seat (16) side is equipped with boss (7), and the center of boss (7) is equipped with alarm device (17), alert
It reports device (17) to be electrically connected by conducting wire and single-chip microcontroller (19), and sprays the edge on the outside of seat (16) and fire extinguishing watering is uniformly installed
Seat (8), fire extinguishing douche base (8) are all uniformly equipped with spray head (18) close to the side of slide (6), and the slide (6) is internal close
The center of sliding rail (3) side is equipped with the second motor (23), and the second motor (23) is electrically connected by conducting wire and single-chip microcontroller (19),
The output end of second motor (23) extends to the inside of slide (6) and is fixedly connected with water tank (14), and the second motor (23)
Output end on be equipped with turbine (20), turbine (20) and worm screw (22) are intermeshed, and the bottom on the outside of the slide (6) is pacified
Equipped with connection tube socket (9), one end of connection tube socket (9) all extends to the inside of slide (6) and consolidates with the bottom of water tank (14)
Fixed connection, and being all uniformly equipped with fire sensor (5) on the exterior wall (1) of rack gear (2) side, fire sensor (5) it is defeated
Outlet is electrically connected with the input terminal of single-chip microcontroller (19).
2. a kind of external wall of building fire plant according to claim 1, it is characterised in that: the rack gear (2) and fire pass
Sensor (5) is symmetrical arranged about sliding recess (4).
3. a kind of external wall of building fire plant according to claim 1, it is characterised in that: spray inside the slide (6)
One end of seat (16) is uniformly provided with inlet opening (15), and the junction of water tank (14) and spray seat (16) is mounted on sealing
Circle, the second shaft (27) and the output end of first motor (13) and the junction of compartment (24) are mounted on sealing ring.
4. a kind of external wall of building fire plant according to claim 1, it is characterised in that: on the outside of the connection tube socket (9)
Bottom be equipped with external screw thread.
5. a kind of external wall of building fire plant according to claim 1, it is characterised in that: the sliding block (10) and sliding slot
(11) it cooperates, slide (6) constitutes slide construction by sliding block (10) and sliding slot (11).
6. a kind of external wall of building fire plant according to claim 1, it is characterised in that: the first motor (13) and
Gear transmission structure is constituted by first gear (25) and second gear (26) between two shafts (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572308.3U CN208975033U (en) | 2018-09-26 | 2018-09-26 | A kind of external wall of building fire plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572308.3U CN208975033U (en) | 2018-09-26 | 2018-09-26 | A kind of external wall of building fire plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208975033U true CN208975033U (en) | 2019-06-14 |
Family
ID=66785436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821572308.3U Active CN208975033U (en) | 2018-09-26 | 2018-09-26 | A kind of external wall of building fire plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN208975033U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228701A (en) * | 2020-02-21 | 2020-06-05 | 江苏工程职业技术学院 | Building house fire-fighting robot |
| CN111851835A (en) * | 2020-06-29 | 2020-10-30 | 深圳龙源精造建设集团有限公司 | Fire-fighting spray lower hanger in mineral wool board ceiling hanging mode and mounting method thereof |
| CN112125104A (en) * | 2020-08-28 | 2020-12-25 | 山东贝克特智能科技有限公司 | Conveying robot of intelligent fire-fighting system |
| CN112295149A (en) * | 2020-10-19 | 2021-02-02 | 周玉芳 | Fire fighting device for fire fighting of super high-rise building |
| CN112657099A (en) * | 2020-12-29 | 2021-04-16 | 甬港现代工程有限公司 | Fire-fighting spray device |
| CN112675465A (en) * | 2019-10-17 | 2021-04-20 | 浙江鸿信安诺科技有限公司 | Fire extinguishing device with wireless remote control function |
| CN112843560A (en) * | 2019-08-21 | 2021-05-28 | 李平 | Building outer wall fire-fighting system and using method |
| CN112972962A (en) * | 2020-07-29 | 2021-06-18 | 马鑫 | Spraying device for fire fighting |
| CN113398507A (en) * | 2021-05-20 | 2021-09-17 | 东南大学建筑设计研究院有限公司 | Building atrium space vertical movement formula fire extinguishing device |
| CN114534133A (en) * | 2022-01-19 | 2022-05-27 | 福建正扬科技股份有限公司 | Intelligent public security system |
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- 2018-09-26 CN CN201821572308.3U patent/CN208975033U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112843560A (en) * | 2019-08-21 | 2021-05-28 | 李平 | Building outer wall fire-fighting system and using method |
| CN112675465A (en) * | 2019-10-17 | 2021-04-20 | 浙江鸿信安诺科技有限公司 | Fire extinguishing device with wireless remote control function |
| CN111228701A (en) * | 2020-02-21 | 2020-06-05 | 江苏工程职业技术学院 | Building house fire-fighting robot |
| CN111851835A (en) * | 2020-06-29 | 2020-10-30 | 深圳龙源精造建设集团有限公司 | Fire-fighting spray lower hanger in mineral wool board ceiling hanging mode and mounting method thereof |
| CN112972962A (en) * | 2020-07-29 | 2021-06-18 | 马鑫 | Spraying device for fire fighting |
| CN112972962B (en) * | 2020-07-29 | 2022-04-29 | 浙江南瑞飞翼航空技术有限公司 | Spraying device for fire fighting |
| CN112125104A (en) * | 2020-08-28 | 2020-12-25 | 山东贝克特智能科技有限公司 | Conveying robot of intelligent fire-fighting system |
| CN112295149A (en) * | 2020-10-19 | 2021-02-02 | 周玉芳 | Fire fighting device for fire fighting of super high-rise building |
| CN112295149B (en) * | 2020-10-19 | 2021-07-30 | 苏州固特斯电子科技有限公司 | Fire fighting device for fire fighting of super high-rise building |
| CN113289295A (en) * | 2020-10-19 | 2021-08-24 | 周玉芳 | Fire fighting device for fire fighting of super high-rise building |
| CN112657099A (en) * | 2020-12-29 | 2021-04-16 | 甬港现代工程有限公司 | Fire-fighting spray device |
| CN113398507A (en) * | 2021-05-20 | 2021-09-17 | 东南大学建筑设计研究院有限公司 | Building atrium space vertical movement formula fire extinguishing device |
| CN114534133A (en) * | 2022-01-19 | 2022-05-27 | 福建正扬科技股份有限公司 | Intelligent public security system |
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