CN110339520A - A kind of building fire extinguishing escape device - Google Patents
A kind of building fire extinguishing escape device Download PDFInfo
- Publication number
- CN110339520A CN110339520A CN201910693682.1A CN201910693682A CN110339520A CN 110339520 A CN110339520 A CN 110339520A CN 201910693682 A CN201910693682 A CN 201910693682A CN 110339520 A CN110339520 A CN 110339520A
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- CN
- China
- Prior art keywords
- fire
- box
- escape
- escape device
- put out
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
Landscapes
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The present invention relates to a kind of building fire extinguishing escape devices to install fire extinguisher canvas hose, the both ends of fire extinguisher canvas hose are separately connected Water outlet spray head and water supply connector including being mounted on indoor fire box and being mounted on outdoor escape box in fire box；The escape box is mounted on the upside of window, and two fire-fighting curtains are connected in escape box, escape device is additionally provided in escape box.Advantages of the present invention: the present apparatus is mounted on the outside of the window of building, when fire occurs, when the intensity of a fire is smaller, pass through fire extinguisher canvas hose, it being capable of Self-extinguishing, when fire is greater, when uncontrollable, quickly withdrawn by escape device, putting down fire screen simultaneously can hinder house inner air and outer air to circulate to a certain extent, the content of oxygen in smaller room air reduces the intensity of a fire, can effectively prevent fire spreading, strive for most effective attack time to fire fighter, present apparatus structure is simple, using conveniently, has wider application range.
Description
Technical field
The present invention relates to fire-fighting life-saving technical field, specially a kind of building fire extinguishing escape device.
Background technique
China's economy steps into the period of high speed development at present, and Process of Urbanization Construction is constantly accelerated, and the skyscraper in city is got over
Come more, skyscraper is effectively utilized space, but various communication lines, power and illuminating line and each in skyscraper
Kind system middle line road is criss-cross, causes the probability of happening of fire being also significantly increased, in the case of fire, people are not easy to escape
It is raw.And it is rarely equipped with escaping tool in skyscraper at present, fire such as occurs, substantially passes through passageway for fire apparatus or waiting
The modes such as rescue are escaped, and cause the emergency situations such as passageway for fire apparatus blocks or fire fighter puts out a fire not in time in fire spreading
Under, the life of indicator of trapped personnel can be made greatly to be threatened.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of building fire extinguishing escape devices.
To achieve the above object, the invention provides the following technical scheme:
A kind of building fire extinguishing escape device, it is characterised in that: including being mounted on indoor fire box and being mounted on outdoor escape
Raw case, installs fire extinguisher canvas hose, the both ends of fire extinguisher canvas hose are separately connected Water outlet spray head and water supply connector in fire box；
The escape box is mounted on the upside of window, and two sliding slots are connected on escape box, and two sliding slots are separately positioned on window
Two sides, in escape box be equipped with roll shaft, connect fire-fighting curtain in roll shaft Shangrao, fire-fighting curtain is corresponding with sliding slot to be slidably matched, and is escaping
Escape device is additionally provided in case；
The Water outlet spray head includes connecting tube, and connecting tube connects fire extinguisher canvas hose, and ball valve, the side wall of connecting tube are equipped in connecting tube
It is equipped with water outlet, ball valve is correspondingly arranged with water outlet, is rotatablely connected outlet pipe in water outlet, one end of outlet pipe is connected to
On ball valve, outlet pipe is also connected with sprinkler pipe.
It, can be with the following technical solution is employed on the basis of above scheme:
Storage box is installed in the escape box, the escape device is mounted in storage box.
It is equipped with resigning mouthful, the mating connection door-plate at resigning mouthful in the downside of the escape box, the escape device corresponds to
The upside of door-plate is set.
Partition is installed in the fire box, the mounting plate on partition is equipped with fixing axle, institute in the side of fixed plate
It states that fire extinguisher canvas hose is rich to be connect in fixing axle, fire extinguisher, breathing mask and alarm is equipped in the fire box on the downside of partition.
The escape device includes fireproof box, and fireproof box connects the escape box by descending lifeline.
Also installation transmission rod and motor, motor driven connection transmission rod are driven rod and the fire-fighting in the escape box
The corresponding transmission cooperation of curtain.
It is equipped with counter weight strip in the downside of the fire-fighting curtain, the two sides of counter weight strip are correspondingly arranged in the corresponding sliding slot.
Seal groove is equipped in each sliding slot, each seal groove side seals corresponding with the fire-fighting curtain are matched
It closes.
The connecting tube is round tube open at one end, and sealing ring, sealing ring and the connection are socketed on the outlet pipe
The corresponding sealing cooperation of the water outlet of pipe, be also cooperatively connected locking nut on outlet pipe, locking nut and sealing ring compression fit.
Compared with prior art, it the beneficial effects of the present invention are: the present apparatus is mounted on the outside of the window of building, is sent out in fire
When raw, when the intensity of a fire is smaller, by fire extinguisher canvas hose, can Self-extinguishing when fire is greater when uncontrollable, pass through escape device
It quickly withdraws, while putting down fire screen can hinder house inner air and outer air to circulate to a certain extent, oxygen in smaller room air
The content of gas reduces the intensity of a fire, can effectively prevent fire spreading, strive for most effective attack time, this dress to fire fighter
It is simple to set structure, using conveniently, there is wider application range.
Detailed description of the invention
Fig. 1 is escape box structural schematic diagram of the invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the structural schematic diagram of fire box of the invention；
Fig. 4 is the structural schematic diagram of Water outlet spray head.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not doing place's creative work
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention relates to a kind of building fire extinguishing escape devices, including are mounted on room
Interior fire box 1 and the escape box 2 for being mounted on outdoor, escape box 2 are stainless steel square box, are equipped with dress in the outside of escape box 2
Adorn picture.Partition 10 is installed in fire box 1, the mounting plate 11 on partition 10 is equipped with fixing axle in the side of fixed plate 11,
Fire extinguisher canvas hose 12 is connect in fixing axle Shangrao, the both ends of fire extinguisher canvas hose 12 are separately connected Water outlet spray head 14 and water supply connector 13.It is going out
When fiery, water supply connector 13 is connected on the fire-fighting connector of building, and Water outlet spray head 14 is directed at ignition point and puts out a fire.Water outlet spray head 14
Including connecting tube 20, connecting tube 20 be round tube open at one end, connecting tube 20 opening connect fire extinguisher canvas hose 12, connecting
Ball valve 22 is equipped in pipe 20, the side wall of connecting tube 20 is equipped with water outlet, and ball valve 22 is correspondingly arranged with water outlet, in water outlet
It is rotatablely connected outlet pipe 23, one end of outlet pipe 23 is connected on ball valve 22, and outlet pipe 23 is also connected with sprinkler pipe 24.It is described go out
Sealing ring 25, the sealing cooperation corresponding with the water outlet of the connecting tube 20 of sealing ring 25, on outlet pipe 23 are socketed on water pipe 23
Also mating connection locking nut 26, locking nut 26 and 25 compression fit of sealing ring.
Fire extinguisher 15, breathing mask 16 and alarm 17 are equipped in the fire box 1 of 10 downside of partition.On fire box 1
Mounting temperature sensor and smoke detector increase or when temperature sensor and smoke detector perceive indoor temperature there are when cigarette, report
Alert device 17 issues sound, and alarm 17, temperature sensor and smoke detector are controlled by controller and connected, and controller is existing skill
Art.Fire behavior is known ahead of time convenient for people, searches out the specific location of fire behavior, indoor occupant can select to put out a fire at the first time.
The escape box 2 is a cuboid case, and when in use, escape box 2 is mounted on the upside of window 18, is escaping
Two sliding slots 6 are connected on case 2, two sliding slots 6 are separately positioned on the two sides of window 18, roll shaft 4 are equipped in escape box 2, in roller
4 Shangrao of axis connects fire-fighting curtain 5, and fire-fighting curtain 5 is the prior art, using fire-proof and thermal-insulation curtain.Seal groove is equipped in each sliding slot 6
6.1, the side seals cooperation corresponding with fire-fighting curtain 5 of each seal groove 6.1.It is equipped with counter weight strip 7 in the downside of fire-fighting curtain 5, is matched
The two sides of weight item 7 are correspondingly arranged in the corresponding sliding slot 6.
Storage box 9 is installed in escape box 2, escape device 8 is installed in storage box 9, the escape in 8 downside of escape device
Case 2 is equipped with resigning mouthful, and the hinged door-plate 7 at resigning mouthful, when in use, door-plate 7, which opens escape device 8, to be declined.Escape
Device 8 includes fireproof box, and fireproof box connects escape box 2 by descending lifeline, and descending lifeline is the prior art, using existing conventional rope
Cable-styled descending lifeline, it is used to control the decline of fireproof box.
Also installation transmission rod 19 and motor, motor driven connection transmission rod 19 are driven rod 19 and institute in the escape box 2
State the corresponding transmission cooperation of fire-fighting curtain 5.
When in use, when the intensity of a fire is smaller, by fire extinguisher canvas hose 12, Self-extinguishing when uncontrollable, leads to when fire is greater
It crosses escape device quickly to withdraw, after evacuating people enters fireproof box, motor control, fire-fighting curtain 5 declines, and hinders to a certain extent
House inner air and outer air is hindered to circulate, the content of oxygen in smaller room air reduces the intensity of a fire.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (9)
- The escape device 1. a kind of building is put out a fire, it is characterised in that: including being mounted on indoor fire box (1) and being mounted on outdoor Escape box (2), fire extinguisher canvas hose (12) are installed in the fire box (1), the both ends of fire extinguisher canvas hose (12) are separately connected Water outlet spray head (14) and water supply connector (13)；The escape box (2) is mounted on the upside of window (18), and two sliding slots (6), two sliding slots are connected on escape box (2) (6) two sides of window (18) are separately positioned on, roll shaft (4) is equipped in escape box (2), connects fire-fighting curtain in roll shaft (4) Shangrao (5), fire-fighting curtain (5) is corresponding with sliding slot (6) is slidably matched, and is additionally provided with escape device (8) in escape box (2)；The Water outlet spray head (14) includes connecting tube (20), and connecting tube (20) connects fire extinguisher canvas hose (12), in connecting tube (20) Equipped with ball valve (22), the side wall of connecting tube (20) is equipped with water outlet, and ball valve (22) is correspondingly arranged with water outlet, in water outlet It is rotatablely connected outlet pipe (23), one end of outlet pipe (23) is connected on ball valve (22), and outlet pipe (23) is also connected with sprinkler pipe (24).
- The escape device 2. a kind of building according to claim 1 is put out a fire, it is characterised in that: in the escape box (2) It installs storage box (9), the escape device (8) is mounted in storage box (9).
- The escape device 3. a kind of building according to claim 2 is put out a fire, it is characterised in that: in the escape box (2) Downside is equipped with resigning mouthful, mating connection door-plate (7) at resigning mouthful, and the escape device (8) is correspondingly arranged at the upper of door-plate (7) Side.
- The escape device 4. a kind of building according to claim 1 is put out a fire, it is characterised in that: in the fire box (1) It installs partition (10), the mounting plate (11) on partition (10), is equipped with fixing axle, the fire-fighting in the side of fixed plate (11) Water pipe (12) is rich to be connect in fixing axle, is equipped with fire extinguisher (15) in the fire box (1) on the downside of partition (10), breathing mask (16) With alarm (17).
- The escape device 5. a kind of building according to claim 1 is put out a fire, it is characterised in that: escape device (8) packet Fireproof box is included, fireproof box connects the escape box (2) by descending lifeline.
- The escape device 6. a kind of building according to claim 1 is put out a fire, it is characterised in that: in the escape box (2) Also installation transmission rod (19) and motor, motor driven connection transmission rod (19), transmission rod (19) is corresponding with fire-fighting curtain (5) to be passed Dynamic cooperation.
- The escape device 7. a kind of building according to claim 1 is put out a fire, it is characterised in that: in the fire-fighting curtain (5) Downside is equipped with counter weight strip (7), and the two sides of counter weight strip (7) are correspondingly arranged in the corresponding sliding slot (6).
- The escape device 8. a kind of building according to claim 1 is put out a fire, it is characterised in that: in each sliding slot (6) It is inside equipped with seal groove (6.1), the side seals cooperation corresponding with fire-fighting curtain (5) of each seal groove (6.1).
- The escape device 9. a kind of building according to claim 1 is put out a fire, it is characterised in that: the connecting tube (20) is one The round tube of end opening is socketed sealing ring (25) on the outlet pipe (23), and sealing ring (25) goes out with the connecting tube (20) The corresponding sealing cooperation in the mouth of a river, be also cooperatively connected locking nut (26) on outlet pipe (23), locking nut (26) and sealing ring (25) compression fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693682.1A CN110339520A (en) | 2019-07-30 | 2019-07-30 | A kind of building fire extinguishing escape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693682.1A CN110339520A (en) | 2019-07-30 | 2019-07-30 | A kind of building fire extinguishing escape device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110339520A true CN110339520A (en) | 2019-10-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693682.1A Pending CN110339520A (en) | 2019-07-30 | 2019-07-30 | A kind of building fire extinguishing escape device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110339520A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001100A (en) * | 2019-10-31 | 2020-04-14 | 郭锦坤 | Intelligent escape window |
| CN112370683A (en) * | 2020-11-19 | 2021-02-19 | 重庆工程职业技术学院 | Intelligent building fire-proof emergency device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292153Y (en) * | 1997-06-05 | 1998-09-23 | 李健辉 | Smoke-proof and fire-proof scroll curtain device |
| CN2756795Y (en) * | 2004-12-01 | 2006-02-08 | 成都铁路防火制品厂 | Fire-proof rolling curtain with escape indication warning |
| CN201596845U (en) * | 2009-12-23 | 2010-10-06 | 安徽长丰扬子汽车制造有限责任公司 | Integrated C-shaped welding tongs with function of preventing water leakage |
| CN202578461U (en) * | 2012-05-25 | 2012-12-05 | 河南维思能源环保技术有限公司 | Roll-up window convenient for escaping |
| CN203549173U (en) * | 2013-11-12 | 2014-04-16 | 董伟 | Pipeline connecting device of branching water-supply equipment |
| CN107376173A (en) * | 2017-09-04 | 2017-11-24 | 无锡尚智诚科技有限公司 | A kind of intelligent Community Multifunctional fire hose box |
| CN206715111U (en) * | 2017-04-06 | 2017-12-08 | 福建省泉州市旭高阀门科技有限公司 | A kind of fire-fighting device for hotel room |
| CN207221142U (en) * | 2017-09-18 | 2018-04-13 | 四川建筑职业技术学院 | A kind of fire-fighting escape device for skyscraper |
| CN208372347U (en) * | 2018-05-29 | 2019-01-15 | 莆田学院 | A kind of full-automatic fire protection fire-extinguishing apparatus |
| CN208852273U (en) * | 2018-05-27 | 2019-05-14 | 朱余锋 | A kind of property fire-fighting escape device |
| CN211132799U (en) * | 2019-07-30 | 2020-07-31 | 柳西普 | Fire-extinguishing escape device for building |
-
2019
- 2019-07-30 CN CN201910693682.1A patent/CN110339520A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292153Y (en) * | 1997-06-05 | 1998-09-23 | 李健辉 | Smoke-proof and fire-proof scroll curtain device |
| CN2756795Y (en) * | 2004-12-01 | 2006-02-08 | 成都铁路防火制品厂 | Fire-proof rolling curtain with escape indication warning |
| CN201596845U (en) * | 2009-12-23 | 2010-10-06 | 安徽长丰扬子汽车制造有限责任公司 | Integrated C-shaped welding tongs with function of preventing water leakage |
| CN202578461U (en) * | 2012-05-25 | 2012-12-05 | 河南维思能源环保技术有限公司 | Roll-up window convenient for escaping |
| CN203549173U (en) * | 2013-11-12 | 2014-04-16 | 董伟 | Pipeline connecting device of branching water-supply equipment |
| CN206715111U (en) * | 2017-04-06 | 2017-12-08 | 福建省泉州市旭高阀门科技有限公司 | A kind of fire-fighting device for hotel room |
| CN107376173A (en) * | 2017-09-04 | 2017-11-24 | 无锡尚智诚科技有限公司 | A kind of intelligent Community Multifunctional fire hose box |
| CN207221142U (en) * | 2017-09-18 | 2018-04-13 | 四川建筑职业技术学院 | A kind of fire-fighting escape device for skyscraper |
| CN208852273U (en) * | 2018-05-27 | 2019-05-14 | 朱余锋 | A kind of property fire-fighting escape device |
| CN208372347U (en) * | 2018-05-29 | 2019-01-15 | 莆田学院 | A kind of full-automatic fire protection fire-extinguishing apparatus |
| CN211132799U (en) * | 2019-07-30 | 2020-07-31 | 柳西普 | Fire-extinguishing escape device for building |
Non-Patent Citations (2)
| Title |
|---|
| 任清杰: "《消防安全保卫》", 30 June 2018, 西北工业大学出版社, pages: 258 - 259 * |
| 伍和员: "《现代火灾与扑救》", 30 November 1988, 南京大学出版社, pages: 169 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001100A (en) * | 2019-10-31 | 2020-04-14 | 郭锦坤 | Intelligent escape window |
| CN111001100B (en) * | 2019-10-31 | 2021-05-25 | 郭锦坤 | Intelligent escape window |
| CN112370683A (en) * | 2020-11-19 | 2021-02-19 | 重庆工程职业技术学院 | Intelligent building fire-proof emergency device |
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