CN106761286A - The Novel fireproof emergency exits that can lower the temperature - Google Patents
The Novel fireproof emergency exits that can lower the temperature Download PDFInfo
- Publication number
- CN106761286A CN106761286A CN201611091022.9A CN201611091022A CN106761286A CN 106761286 A CN106761286 A CN 106761286A CN 201611091022 A CN201611091022 A CN 201611091022A CN 106761286 A CN106761286 A CN 106761286A
- Authority
- CN
- China
- Prior art keywords
- door
- chamber
- dividing plate
- glue
- cylinder body
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/24—Operating or controlling mechanisms
- A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/004—Making of fire-extinguishing materials immediately before use for producing carbon-dioxide snow, carbon-dioxide ice, carbon-dioxide gas, carbon-dioxide liquid, or mixtures thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
Abstract
The invention belongs to the door and window fields of fixed buildings, specifically disclose a kind of Novel fireproof emergency exits lowered the temperature, including the doorframe being made of fireproof core board and door body, the side for being located at indoor side in door body and being located outside is mounted on door handle, the side of door handle is provided with fire-extinguishing cooling device, fire-extinguishing cooling device includes cylinder body, dividing plate is provided with cylinder body, one end of dividing plate is by being hinged in cylinder body, the other end of dividing plate is stained with the first glue, and dividing plate is Nian Jie with inboard wall of cylinder block by the first glue；Cylinder body is divided into first chamber and second chamber by dividing plate, and, built with aluminum sulfate, second chamber is built with sodium acid carbonate for first chamber；Spout is provided with the top sidewall of cylinder body, the second glue for sealing is provided with spout, the fusing point of the second glue is higher than the first glue, and spout is just directed at door handle.By the temperature reduction of door handle when this programme allows that fire occurs, so as to improve the escape rate of people.
Description
Technical field
The invention belongs to the door and window fields of fixed buildings, more particularly to a kind of door of specific use.
Background technology
Existing fire resistant doorsets species is more in the market, and its doorframe and door leaf are made of mostly using metal, in doorframe
With the laminboard layer filling fire resisting material of door leaf.To stop fire spreading, every layer of switch gate of passway for escaping uses fire resistant doorsets.
The Chinese invention patent file of Publication No. CN104314445A discloses a kind of Novel fire-proof door, including using fire prevention core
Doorframe and door leaf that plate is made, the doorframe are sealed with door leaf junction by expansion strip of paper used for sealing of preventing fires, in the door leaf
Bottom is formed with the through hole that the body that can tolerate towards others passes through, and the escape tube that the body that can tolerate towards others passes through is embedded with through hole, and the escape tube is located at interior
Side is provided with closure.During work, when fire resistant doorsets are ineffective cannot be normally-open when, people can be by being arranged on fire resistant doorsets
The escape tube of middle and lower part enters escape, the closure for being located at indoor side is opened by opening device so that personnel can normally dredge
Dissipate.
But the bulk temperature of door leaf can be raised when fire occurs so that the temperature of door handle is too high to cause the people cannot
Fire resistant doorsets are opened and is escaped, and escape tube is in the case of fire spreading, escape tube can also be added by surrounding air or big fire
Heat, escape tube and closure after being heated are susceptible to deformation so that closure is merged or be bonded with escape tube
Together, causing escape tube cannot be opened, and greatly loss is caused for people life property safety.
The content of the invention
It is an object of the invention to provide a kind of Novel fireproof emergency exits lowered the temperature so that fire can be by door when occurring
The temperature reduction of handle, so as to improve the escape rate of people.
In order to achieve the above object, base case of the invention provides a kind of Novel fireproof emergency exits lowered the temperature, including
The doorframe and door body being made of fireproof core board, the side for being located at indoor side in the door body and being located outside are mounted on
Door handle, the side of the door handle is provided with fire-extinguishing cooling device, and the fire-extinguishing cooling device includes cylinder body, in the cylinder body
Dividing plate is provided with, by being hinged in cylinder body, the other end of dividing plate is stained with the first glue, and dividing plate passes through first for one end of the dividing plate
Glue is Nian Jie with inboard wall of cylinder block；Cylinder body is divided into first chamber and second chamber by dividing plate, the first chamber built with aluminum sulfate,
The second chamber is built with sodium acid carbonate；Spout is provided with the top sidewall of the cylinder body, is provided with for close in the spout
Second glue of envelope, the fusing point of second glue is higher than the first glue, and the spout is just directed at door handle.
The principle of this base case is：When fire occurs, the temperature of door body is raised, and the first relatively low glue of fusing point is first
Melt so that the aluminum sulfate in first chamber is fallen into second chamber and mixes with the sodium acid carbonate in second chamber and produce big
The carbon dioxide of amount；As the rising of door body temperature, the second glue positioned at spout are melted, spout is opened, positioned at cylinder body
Interior carbon dioxide sprays and is sprayed onto on door handle from spout, because the reaction of aluminum sulfate and sodium acid carbonate is the endothermic reaction, institute
It is relatively low with the carbon dioxide temperature produced after mixing, and the flowing of surrounding air can be driven after carbon dioxide sprays, air-flow is formed,
Therefore, the carbon dioxide of ejection can lower the temperature to door handle, and the door handle after cooling can be by people's taking, and then by door
Opening is escaped.
The beneficial effect of this base case is：
1st, the reaction of aluminum sulfate and sodium acid carbonate is controlled by the first glue so that two kinds of materials only when fire occurs
Can work, economize on resources, and two kinds of materials are easier to obtain, cost is relatively low；
2nd, the reaction of aluminum sulfate and sodium acid carbonate is the endothermic reaction so that the carbon dioxide of generation can be carried out rapidly to door handle
Cooling, improve people's escape rate in a fire.
Scheme two：Scheme is preferred based on this, the downward-sloping setting of dividing plate.The dividing plate being obliquely installed can be by position
It is gathered in the angle that dividing plate and inboard wall of cylinder block are formed in the aluminum sulfate in first chamber, it is to avoid aluminum sulfate is from dividing plate and cylinder body
Hinged place is dropped and is shifted to an earlier date and reaction of sodium bicarbonate, causes the waste of material.
Scheme three：Scheme is preferred based on this, and the first chamber and the second chamber are equal positioned at indoor side
It is provided with charge door.Charge door can be convenient for people to supplement the aluminum sulfate and sodium acid carbonate in cylinder body so that fire extinguishing cooling is filled
Put reusable edible multiple.
Scheme four：This is preferred for scheme three, and the charge door is obliquely installed.Inclined charge door can make aluminum sulfate and
Sodium acid carbonate promptly can enter in chamber in charging, it is to avoid material remains in charging and causes to waste.
Scheme five：This is preferred for scheme four, and the charge door is provided with lid.Lid is prevented from debris and enters chamber
It is interior, the reaction effect of influence aluminum sulfate and sodium acid carbonate.
Scheme six：Scheme is preferred based on this, and the spout is provided with sealing-plug close to one end of door handle.Sealing-plug can
Prevent debris from entering spout, spout is blocked, influence the cooling-down effect of fire-extinguishing cooling device.
Scheme seven：Scheme is preferred based on this, and the door body is provided with the storage box that can place fire prevention emergency article.It is anti-
Fire emergency article is placed in door body, and people can be enable to be obtained rapidly when there is fire, improves people's escape successfully several
Rate.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the Novel fireproof emergency exits that the present invention can lower the temperature；
Fig. 2 is the concrete structure schematic diagram of fire-extinguishing cooling device in Fig. 1.
Specific embodiment
Below by specific embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Doorframe 1, door body 2, door handle 3, fire-extinguishing cooling device 4, storage box 5, cylinder body
6th, dividing plate 7, the first glue 8, the second glue 9, first chamber 10, second chamber 11, aluminum sulfate 12, sodium acid carbonate 13, spout 14,
Charge door 15.
Embodiment is substantially as shown in Figures 1 and 2：
The Novel fireproof emergency exits that can lower the temperature, are mainly made up of door body 2, door handle 3 and fire-extinguishing cooling device 4.Door body 2 is arranged on
In doorframe 1, doorframe 1 and door body 2 are made of fireproof core board.The middle part of door body 2 is located at indoor side and be located outside one
Side is mounted on door handle 3.The position in the left side of door handle 3 is provided with fire-extinguishing cooling device 4, the position of the right side lower end of door handle 3
The storage box 5 for placing fire prevention emergency article is installed.Fire-extinguishing cooling device 4 is by cylinder body 6, dividing plate 7, first chamber 10, aluminum sulfate
12nd, second chamber 11, sodium acid carbonate 13, the first glue 8, the glue 9 of spout 14 and second are constituted.Cylinder body 6 is welded in door body 2,
The left end of dividing plate 7 is hinged on the inwall of cylinder body 6, and the mode that dividing plate 7 is hinged, can be real using the articulated manner between refrigerator doors and cabinet
It is existing hermetically sealed；The other end of dividing plate 7 is bonded on the inwall of cylinder body 6 by the first glue 8, and the first glue 8 is PUR, and fusing point exists
80 ° or so.The downward-sloping setting of dividing plate 7, makes aluminum sulfate 12 be gathered in the angle that dividing plate 7 is formed with the inwall of cylinder body 6, it is to avoid sulphur
Sour aluminium 12 drops and shifts to an earlier date with the hinged place of cylinder body 6 and reacted with sodium acid carbonate 13 from dividing plate 7, causes the waste of material.Dividing plate 7 will
6 points of cylinder body is first chamber 10 and second chamber 11, and first chamber 10 is located at the top of cylinder body 6, and first chamber 10 is built with sulphur
Sour aluminium 12, second chamber 11 is located at the bottom of cylinder body 6, and second chamber 11 is built with sodium acid carbonate 13.The chamber of first chamber 10 and second
Room 11 is located at indoor side and is welded with charge door 15, is convenient for people to enter the aluminum sulfate 12 and sodium acid carbonate 13 in cylinder body 6
Row supplement so that the reusable edible of fire-extinguishing cooling device 4 is multiple.Charge door 15 is obliquely installed, and inclined charge door 15 can make
Aluminum sulfate 12 and sodium acid carbonate 13 promptly can enter in chamber in charging, it is to avoid material remains in charging and causes to waste.
Lid is socketed with charge door 15, lid is prevented from debris and enters in chamber, and influence aluminum sulfate 12 is anti-with sodium acid carbonate 13
Answer effect.The right-hand member top of cylinder body 6 is provided with spout 14, and the position of spout 14 is just directed at door handle 3.The company of spout 14 and cylinder body 6
The place of connecing is sealed with the second glue 9, and the second glue 9 is 100 degree of high temperature glue, and fusing point is at 100 ° or so, and the fusing point of the second glue 9 is high
In the first glue 8, the outer end of spout 14 is placed with sealing-plug.
During specific works, when fire occurs, the temperature of door body 2 gradually rises, and when the temperature of door body 2 reaches 80 °, glues
The PUR for being connected on the right-hand member of dividing plate 7 starts to melt, and the right-hand member of dividing plate 7 is separated with the inwall of cylinder body 6, the sulfuric acid in first chamber 10
Aluminium 12 falls into second chamber 11 and is reacted with the sodium acid carbonate 13 in second chamber 11, produces substantial amounts of carbon dioxide gas
Body is accumulated in cylinder body 6, the pressure increase in cylinder body 6.Because the reaction of aluminum sulfate 12 and sodium acid carbonate 13 is the endothermic reaction, institute
It is relatively low with the carbon dioxide temperature for producing.When the temperature of door body 2 reaches 100 ° or so, 100 degree of high temperature in spout 14
Glue starts to melt, and accumulates in the carbon dioxide in cylinder body 6 and is gone out from spout 14 and will be socketed in the outer end of spout 14
Sealing-plug is washed out, and the carbon dioxide of ejection is just injected on door handle 3, and the relatively low carbon dioxide of temperature can be to door handle 3
To the effect of cooling, and the carbon dioxide for spraying can drive the flowing of surrounding air, form air stream, and air stream acts on door
The temperature of door handle 3 can be made on handle 3 gradually to be reduced.Door handle 3 after cooling can be by people's taking and then door is terraced 2 dozens
Open, people just can walk out from door body 2 after the fire prevention emergency article in storage box 5 is dressed and be escaped.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description.It should be pointed out that for a person skilled in the art, on the premise of structure of the present invention is not departed from, can be with
Some deformations and improvement are made, these should also be considered as protection scope of the present invention, these are implemented all without the influence present invention
Effect and practical applicability.This application claims protection domain should be defined by the content of its claim, in specification
Specific embodiment etc. records the content that can be used for explaining claim.
Claims (7)
1. the Novel fireproof emergency exits that can lower the temperature, including the doorframe that is made of fireproof core board and door body, are located in the door body
Indoor side and the side being located outside are mounted on door handle, it is characterised in that the side of the door handle is provided with goes out
Fiery heat sink, the fire-extinguishing cooling device includes cylinder body, and dividing plate is provided with the cylinder body, and one end of the dividing plate is by being hinged
In cylinder body, the other end of dividing plate is stained with the first glue, and dividing plate is Nian Jie with inboard wall of cylinder block by the first glue；Dividing plate divides cylinder body
It is first chamber and second chamber, built with aluminum sulfate, the second chamber is built with sodium acid carbonate for the first chamber；It is described
Spout is provided with the top sidewall of cylinder body, the second glue for sealing, the fusing point of second glue are provided with the spout
Higher than the first glue, the spout is just directed at door handle.
2. Novel fireproof emergency exits lowered the temperature according to claim 1, it is characterised in that：The dividing plate is downward-sloping to be set
Put.
3. Novel fireproof emergency exits lowered the temperature according to claim 1, it is characterised in that：The first chamber and described
Second chamber is located at indoor side and is equipped with charge door.
4. Novel fireproof emergency exits lowered the temperature according to claim 3, it is characterised in that：The charge door is inclined and set
Put.
5. Novel fireproof emergency exits lowered the temperature according to claim 4, it is characterised in that：Lid is provided with the charge door
Son.
6. Novel fireproof emergency exits lowered the temperature according to claim 1, it is characterised in that：The spout is close to door handle
One end be provided with sealing-plug.
7. Novel fireproof emergency exits lowered the temperature according to claim 1, it is characterised in that：The door body is provided with can put
Put the storage box of fire prevention emergency article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091022.9A CN106761286B (en) | 2016-12-01 | 2016-12-01 | The fire-proof escaping door that can cool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091022.9A CN106761286B (en) | 2016-12-01 | 2016-12-01 | The fire-proof escaping door that can cool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761286A true CN106761286A (en) | 2017-05-31 |
| CN106761286B CN106761286B (en) | 2018-03-27 |
Family
ID=58913506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091022.9A Active CN106761286B (en) | 2016-12-01 | 2016-12-01 | The fire-proof escaping door that can cool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761286B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401235A (en) * | 2017-09-02 | 2017-11-28 | 江苏恒龙装饰工程有限公司 | A kind of glass curtain wall interlayer node structure |
| CN108561050A (en) * | 2018-04-20 | 2018-09-21 | 宁波隆锐机械制造有限公司 | Automatic safety door |
| CN110409971A (en) * | 2019-07-25 | 2019-11-05 | 合肥汉东装饰工程有限公司 | A kind of energy-saving aluminium fire window |
| CN111589017A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Built-in perfluorohexanone fire extinguishing system and fire extinguishing method for ceiling |
| CN111589020A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
| CN111764562A (en) * | 2019-03-30 | 2020-10-13 | 深圳市胜盈新型建材有限公司 | Recyclable flame-retardant prefabricated plate and manufacturing process thereof |
| CN112023295A (en) * | 2020-07-31 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Fire disaster reduction system and method for transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050081464A1 (en) * | 2001-08-03 | 2005-04-21 | Diamond Jeffrey H. | Stabilized window structure and method of stabilizing window structures entirely or substantially entirely devoid of glass |
| WO2010119352A2 (en) * | 2009-04-15 | 2010-10-21 | Vetro Ventilato S.R.L. | Thermoinsulated wall |
| CN201972553U (en) * | 2011-01-28 | 2011-09-14 | 王丛前 | Multifunctional self-rescue fire-extinguishing door |
| CN204073201U (en) * | 2014-06-30 | 2015-01-07 | 苏州萃智新技术开发有限公司 | A kind of throwing fire extinguisher bomb |
| CN104343352A (en) * | 2013-07-24 | 2015-02-11 | 西安大盛消防检测有限公司 | Camera shooting and automatic extinguishing fire door |
| CN105749459A (en) * | 2014-12-18 | 2016-07-13 | 常熟市福安消防设备有限公司 | Throwing-type fire extinguishing bomb |
-
2016
- 2016-12-01 CN CN201611091022.9A patent/CN106761286B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050081464A1 (en) * | 2001-08-03 | 2005-04-21 | Diamond Jeffrey H. | Stabilized window structure and method of stabilizing window structures entirely or substantially entirely devoid of glass |
| WO2010119352A2 (en) * | 2009-04-15 | 2010-10-21 | Vetro Ventilato S.R.L. | Thermoinsulated wall |
| CN201972553U (en) * | 2011-01-28 | 2011-09-14 | 王丛前 | Multifunctional self-rescue fire-extinguishing door |
| CN104343352A (en) * | 2013-07-24 | 2015-02-11 | 西安大盛消防检测有限公司 | Camera shooting and automatic extinguishing fire door |
| CN204073201U (en) * | 2014-06-30 | 2015-01-07 | 苏州萃智新技术开发有限公司 | A kind of throwing fire extinguisher bomb |
| CN105749459A (en) * | 2014-12-18 | 2016-07-13 | 常熟市福安消防设备有限公司 | Throwing-type fire extinguishing bomb |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401235A (en) * | 2017-09-02 | 2017-11-28 | 江苏恒龙装饰工程有限公司 | A kind of glass curtain wall interlayer node structure |
| CN107401235B (en) * | 2017-09-02 | 2019-10-22 | 江苏恒龙装饰工程有限公司 | A kind of glass curtain wall interlayer node structure |
| CN108561050A (en) * | 2018-04-20 | 2018-09-21 | 宁波隆锐机械制造有限公司 | Automatic safety door |
| CN111764562A (en) * | 2019-03-30 | 2020-10-13 | 深圳市胜盈新型建材有限公司 | Recyclable flame-retardant prefabricated plate and manufacturing process thereof |
| CN110409971A (en) * | 2019-07-25 | 2019-11-05 | 合肥汉东装饰工程有限公司 | A kind of energy-saving aluminium fire window |
| CN110409971B (en) * | 2019-07-25 | 2020-11-03 | 合肥汉东装饰工程有限公司 | Energy-saving aluminum alloy fireproof window |
| CN111589017A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Built-in perfluorohexanone fire extinguishing system and fire extinguishing method for ceiling |
| CN111589020A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
| CN111589020B (en) * | 2020-05-28 | 2022-03-04 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
| CN112023295A (en) * | 2020-07-31 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Fire disaster reduction system and method for transformer |
| CN112023295B (en) * | 2020-07-31 | 2021-06-29 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Fire disaster reduction system and method for transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761286B (en) | 2018-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106761286B (en) | The fire-proof escaping door that can cool | |
| CN106522792A (en) | Fireproof door capable of being opened automatically | |
| CN106639815B (en) | A kind of security fire door of tape channel | |
| CN208251964U (en) | A kind of automatic fire shutter door having fire-extinguishing function concurrently | |
| CN207194765U (en) | A kind of Novel fire-proof door | |
| CN208024218U (en) | A kind of aluminium alloy fire window | |
| CN206816123U (en) | A kind of plastic-steel fire prevention window construction | |
| CN106761287B (en) | A kind of split escape way fire resistant doorsets | |
| CN208396620U (en) | A kind of Novel fireproof airtight blast door | |
| CN201100077Y (en) | Multi-functional safety door | |
| CN206329249U (en) | A kind of split escape way fire resistant doorsets | |
| CN206655628U (en) | A kind of super large fire resistant doorsets | |
| CN206903526U (en) | Meet the novel broken bridge aluminium profile structure of fire integrity | |
| CN207485302U (en) | A kind of anticollision sealing structure at sliding door and window closing in | |
| CN211549468U (en) | Non-heat-insulation broken bridge aluminum fireproof window profile | |
| CN205077682U (en) | Convenient novel stone material curtain that overhauls | |
| CN213359879U (en) | Fire safety isolation door | |
| CN212428506U (en) | Fire-proof door | |
| CN209653866U (en) | A kind of energy front and back covers the fire resistant doorsets in gap between two door leafs simultaneously | |
| CN210858501U (en) | Emergency entrance and exit of fireproof rolling shutter door | |
| CN208718546U (en) | A kind of explosion release window | |
| CN206860030U (en) | A kind of mining automatically controlled exclusion seal door | |
| CN208396607U (en) | A kind of cleaning type ventilation and protection sealed door | |
| CN206458279U (en) | A kind of band central sill foam cement perfusion protective window | |
| CN215369512U (en) | Guide fire control escape door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |