CN105178820B - Fireproof door and fireproof door plate used by same - Google Patents
Fireproof door and fireproof door plate used by same Download PDFInfo
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- CN105178820B CN105178820B CN201510695045.XA CN201510695045A CN105178820B CN 105178820 B CN105178820 B CN 105178820B CN 201510695045 A CN201510695045 A CN 201510695045A CN 105178820 B CN105178820 B CN 105178820B
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- resistant doorsets
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Abstract
The invention provides a fireproof door and a fireproof door plate used by the same. The fireproof door comprises a door plate and a door frame installed at the periphery of the door plate in a sleeving manner, wherein distance location devices are arranged between the door frame and the door plate of the fireproof door, the distance location devices are uniformly arranged at intervals, buffer structures are arranged at the inner side of the door plate of the fireproof door, and the buffer structures are arranged at the middle positions of the two sides of the door plate respectively. The distance location devices are arranged between the door frame and the door plate of the fireproof door provided by the invention, the distance location devices are uniformly arranged at intervals, and by arranging the distance location devices, difficult opening for the fireproof door due to the own heat-expansion and cold-contraction effect of the fireproof door can be effectively prevented in case of a fire, and the losses of personal safety can be reduced; in addition, the buffer structures are arranged at the inner side of the door plate of the fireproof door, and through arrangements for second-layer buffer structures and selections for the positions of the buffer structures, secondary protection can be effectively carried out. The fireproof door is simple in structure, convenient to operate, low in production cost, and good in fireproof effect.
Description
Technical field
The present invention relates to door manufacturing technology field, more particularly to a kind of fire resistant doorsets, further relate to that this fire resistant doorsets use is anti-
Vent plate.
Background technology
The many methods and techniques for manufacturing fire resistant doorsets and fire-resistant door core are had been developed over for a long time.But these are existing
There are the great majority in Technology design can not be well adapted for full-automatic manufacture process.Current fire resistant doorsets on the market, including anti-
Fiery central layer wants material with the fireproof decorative top for coating the fireproof core board, fireproof core board based on aluminium silicate wool or expanded pearlite rock wool
Material, however, the fireproof core board of fire resistant doorsets is with aluminium silicate wool as main material, its flue gas for producing has toxicity；Fire resistant doorsets it is anti-
Fiery central layer wants material based on expanded pearlite rock wool, and its intensity and fire prevention combustibility are poor.
General, fire resistant doorsets refer to the door that can meet that fire stability, integrity and thermal insulation are required within a certain period of time,
It is mainly used in the fire wall opening of Building Fire Protection subregion, staircase gateway, evacu-ation walk, pipeline well head etc., is ordinarily used for
Personnel pass through, and can prevent propagation of flame when there is fire and prevent combustion product gases from flowing, and fire resistant doorsets are applied to vessel industry earliest,
In recent years, as its importance between floors that increases of skyscraper is projected increasingly, it is most important fire prevention in building
The one of measure, however, fire resistant doorsets are utilized made by iron material mostly at present, and are decorate with coordinating within doors in surface painting paint, but
When fire occurs, it is harmful that pigment can produce chemical gas to this kind of practice, and iron material heat conductivity itself is good, therefore in fire
When calamity occurs, fire resistant doorsets very can scald, and make one directly to open, it is necessary to look for other articles and open indirectly, waste and escape
The raw time, and if scene of fire temperature it is higher when, this kind of fire resistant doorsets can be deformed, and lead to not open, it is necessary to the side of destruction
Formula is opened, and same decreasing is rescued or escape time, furthermore, the cost of this kind of fire resistant doorsets can be in any more, causes building industry
The cost up of person, Ye Shi consumers need to be just commercially available using more expense, so building owner is first excellent in the funds of saving
Under first considering, often only demand and pass through inspection, the not full and accurate fiery carrying capacity for adjusting building, even with cheap unqualified
Fireproof building material, especially topped the list with unqualified fire resistant doorsets.
But, in prior art, had many solutions, such as Chinese patent (application number：
A kind of fire resistant doorsets are disclosed 200910005201.X), which includes flame resistant glass and the support member for supporting flame resistant glass, and
The support member includes the elastic component contacted with two surfaces of flame resistant glass marginal portion, for supporting the elastic component
Strengthen framework and be fixed to fixed plate on support and corresponding with two surfaces for strengthening framework.The technical scheme is directed to business
Industry problem, it is believed that fireproof glass costly, increased production cost burden, limit confession used in universal fire resistant doorsets
Ask.On the basis of outstanding fire protecting performance is kept, effect attractive in appearance is reached, employ frame-type support, including elastic component
Supporting part and fixed plate, while realizing fire-proof function, reduce production cost, but the basic element of character of the technical scheme are still
Flame resistant glass is used, the DeGrain of production cost has been reduced, and flameproof effect has not been further improved.
For another example 103726766 A of Chinese patent CN disclose a kind of fire resistant doorsets, it is characterised in that include：Two door pillars,
It is oppositely arranged；Accommodating mechanism, is arranged on the top of two door pillars；Several panels, are sequentially overlapped from bottom to top in two institutes
State between door pillar, and successively can be stacked in the accommodating mechanism；Guiding mechanism, guide several panels the door pillar with
Move back and forth between the accommodating mechanism；Drive mechanism, drives the guiding mechanism to drive the panel movement；The Guiding machine
Structure is arranged on the door pillar and the accommodating mechanism, causes several panels from bottom to top successively by the guiding mechanism
It is superimposed upon between two door pillar or is successively stacked in the accommodating mechanism, realizes closing or the opening of the fire resistant doorsets.Should
In technical scheme, traditional lath is replaced using panel, while with fire insulation and heat-insulated effect, making simple；By superposition
Mode close fire resistant doorsets, and panel successively can be stacked at the top of which when fire resistant doorsets are opened, simple and quick.The technical side
Although case replaces traditional lath using panel, closes the means such as fire resistant doorsets by way of superposition, give up using fire prevention glass
While glass, good flameproof effect can be reached, but, the intensity, service life and fire resistant doorsets for fire resistant doorsets itself
Still it is short of in terms of the flexibility ratio of itself.
The content of the invention
For overcoming the flexibility ratio of the intensity, service life and fire resistant doorsets itself of fire resistant doorsets present in prior art itself
The problem that aspect is still short of, the invention provides a kind of fire resistant doorsets and its fireproof door plate for using.
The technical solution used in the present invention is：A kind of fire resistant doorsets, including door-plate and are sleeved on the doorframe of door periphery, its
Innovative point is：Distance positioning device is provided between the doorframe and door-plate of the fire resistant doorsets, the distance positioning device is in uniform
Interval setting, is provided with buffer structure on the inside of the door-plate of the fire resistant doorsets, and the buffer structure is respectively arranged in the both sides of door-plate
Between position.
On this basis, the door-plate includes 2 door-plate units, and 2 door-plate units are arranged in order with upper and lower form
Arrange.
On this basis, the distance positioning device is anti-flammability elasticity spring, and one end of the anti-flammability elasticity spring is admittedly
It is scheduled on the inside of doorframe, the other end is fixed on the inner side of door-plate, and the anti-flammability elasticity spring overall structure is by several " several "
Font anti-flammability spring unit is sequentially connected composition.
On this basis, the "Ji" type anti-flammability spring unit number is 3～6.
On this basis, the buffer structure includes some groups of even number root springs, and every group of even number root spring inclines respectively
Tiltedly and it is symmetrical arranged, is monolithically fabricated triangle zigzag structure.
On this basis, the fire prevention door board is respectively arranged with draw off gear near upper and lower two sides of doorframe, institute
State upper and lower two sides and be respectively arranged with the cavity matched with door-plate cell width, the draw off gear is arranged on the sky
Intracavity.
On this basis, the draw off gear includes slide rail, drive motor, roller bearing and is arranged the roller bearing and along institute
The rolling chain that slide rail is arranged in the slide rail is stated, the door-plate is by the rolling chain mobile link on the slide rail.
On this basis, the slide rail includes 2 transverse slats that transversely plane extends, and respectively transverse slat A and transverse slat B should
It is arranged with parallel at the position of transverse slat A door-plate units corresponding with middle part on transverse slat B in T-shaped slot, the T-shaped slot and arranges
There is buffer stopper.
It is a further object to provide the fireproof door plate that a kind of fire resistant doorsets are used, its innovative point is：It is described anti-
Vent plate includes front door, Rear Door and symmetrically arranged two side door plate, and the door-plate in front and back is to be provided with hollow frame
Door-plate, is provided with fire proof construction in the hollow frame.
On this basis, the fire proof construction is specially：Including the fireproof strip of several thermal resistance anti-flammabilitys, the fireproof strip
In the full whole hollow frame of filling, and fireproof strip is fixed in hollow frame with alternative form, the fireproof strip both sides peripheral edge surface
The fixed strip of thermal resistance anti-flammability is provided with, and each fixed strip is installed in the inner surface of framework.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) fire resistant doorsets of the invention, are provided with distance positioning device between the doorframe and door-plate of fire resistant doorsets, and the distance is fixed
Position device is arranged in uniform intervals, by setting distance positioning device, can again fire when effectively prevent the heat of fire resistant doorsets itself
Swollen shrinkage effect, causes fire resistant doorsets to be difficult to open, reduces the loss of personal safety, significant；In addition, in the door-plate of fire resistant doorsets
Side is provided with buffer structure, and the buffer structure is respectively arranged at the both sides centre position of door-plate, by second layer buffer structure
Setting, and the selection of buffer structure position, can effectively carry out second and protect again, and simple structure is easy to operate, and produces into
This is low, and flameproof effect is good.
(2), in fire resistant doorsets of the invention, distance positioning device is anti-flammability elasticity spring, the one of anti-flammability elasticity spring
End is fixed on the inside of doorframe, and the other end is fixed on the inner side of door-plate, and anti-flammability elasticity spring overall structure is by several " several "
Font anti-flammability spring unit is sequentially connected composition, by the arrangement of "Ji" type anti-flammability spring unit, distance in the present invention
Good positioning effect, simple structure design ingenious, by the flexible and spring function of each anti-flammability spring during fire, effectively anti-
Only fire resistant doorsets deformation, increases security performance.
(3), in fire resistant doorsets of the invention, buffer structure includes some groups of even number root springs, and every group of even number root spring inclines respectively
Tiltedly and it is symmetrical arranged, is monolithically fabricated triangle zigzag structure, the buffer structure is constituted using some groups of even number root springs, works as fire prevention
When the door-plate of door cuts out, acted on by stress, incline and symmetrically arranged even number root spring meeting Shunping County is on the inside of door-plate, work as fire prevention
When the door-plate of door is opened, acted on by the elastic force of spring, recoil to rapidly triangle zigzag structure, during fire, can be with valid round
Fire resistant doorsets are opened, is increased the help time, during without fire, can effectively be buffered the door-plate decrease speed of fire resistant doorsets, it is ensured that safety.
(4) in fire resistant doorsets of the invention, draw off gear is provided with, draw off gear is arranged in the cavity, specifically, folding and unfolding
The rolling chain that device includes slide rail, drive motor, roller bearing and is arranged roller bearing and is arranged at along slide rail in slide rail, door-plate pass through
Chain mobile link is rolled on slide rail, the automatization of fire prevention door board folding and unfolding is realized, and it is reasonable in design, space is saved, safely may be used
Lean on.
(5), in fire resistant doorsets of the invention, slide rail is designed to 2 transverse slats that transversely plane extends, pars intermedia on the transverse slat
T-shaped slot is arranged with parallel at the position of position correspondence door-plate unit, buffer stopper in T-shaped slot, is provided with, what is arranged on slide rail is T-shaped
Slot, facilitates roller bearing to roll, and reduces frictional resistance when rolling, and improves the efficiency of folding and unfolding fire prevention door board, reduces the folding and unfolding time,
It is convenient and practical.
(6), in fire resistant doorsets of the invention, fireproof door plate includes front door, Rear Door and symmetrically arranged two side door plate,
The fire line of structure itself is constituted in view of fire resistant doorsets, in front and back's door-plate the door-plate of hollow frame is configured with into, the hollow frame
Fire proof construction is provided with inside, simple structure is reasonable in design, and can be effectively increased fire protecting performance, and practicality is greatly increased.
(7), in fireproof door plate of the invention, fire proof construction is specially the fireproof strip for including several thermal resistance anti-flammabilitys, fire prevention
In the full whole hollow frame of bar filling, and fireproof strip is fixed in hollow frame with alternative form, is fixed with alternative form, favorably
In the compactness of fireproof strip arrangement, fireproof strip aligned gaps are reduced, improve fire protecting performance, in addition, the fireproof strip both sides periphery table
Face is provided with the fixed strip of thermal resistance anti-flammability, and each fixed strip is installed in the inner surface of framework, increases fireproof strip tautness.
Description of the drawings
Fig. 1 is fire resistant doorsets main structure diagram of the present invention；
Fig. 2 is the dimensional structure diagram of draw off gear in fire resistant doorsets of the present invention；
Fig. 3 is the side structure schematic diagram of draw off gear in fire resistant doorsets of the present invention；
Fig. 4 is the skid rail structure diagram in fire resistant doorsets of the present invention in draw off gear；
Fig. 5 is the structural representation of fireproof door plate in fire resistant doorsets of the present invention.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
The present invention relates to a kind of fire resistant doorsets, as shown in Figure 1：Including door-plate 2 and the doorframe 1 of door periphery is sleeved on, is prevented
Distance positioning device 3 is provided between the doorframe 1 and door-plate 2 of vent, the distance positioning device 3 is arranged in uniform intervals, fire prevention
Buffer structure 4 is provided with the inside of the door-plate 2 of door, the buffer structure 4 is respectively arranged at the both sides centre position of door-plate 2, wherein, door
Plate 2 includes that 2 door-plate units, 6,2 door-plate units 6 are arranged in order setting with upper and lower form.In the present invention, in the door of fire resistant doorsets
Distance positioning device is provided between frame and door-plate, the distance positioning device is arranged in uniform intervals, by arranging Distance positioning
Device, can again fire when effectively prevent the effect of expanding with heat and contract with cold of fire resistant doorsets itself, cause fire resistant doorsets to be difficult to open, reduce the person
The loss of safety is significant；In addition, being provided with buffer structure on the inside of the door-plate of fire resistant doorsets, the buffer structure is respectively arranged at
The both sides centre position of door-plate, by the setting of second layer buffer structure, and the selection of buffer structure position, effectively can enter
Row second is protected again, and simple structure is easy to operate, and low production cost, and flameproof effect is good.
Specifically, as shown in Figure 1：Distance positioning device 3 is anti-flammability elasticity spring, one end of anti-flammability elasticity spring
It is fixed on the inside of doorframe 1, the other end is fixed on the inner side of door-plate 2, and anti-flammability elasticity spring overall structure is by several " several "
Font anti-flammability spring unit is sequentially connected composition.In the present embodiment, "Ji" type anti-flammability spring unit number is 3～6
It is individual.By the arrangement of "Ji" type anti-flammability spring unit in the present invention, Distance positioning effect is good, simple structure, designs ingenious,
By the flexible and spring function of each anti-flammability spring during fire, effectively prevent fire resistant doorsets from deforming, increase security performance.
As shown in Figure 1：Buffer structure 4 includes some groups of even number root springs, and every group of even number root spring is inclined and symmetrically respectively
Arrange, be monolithically fabricated triangle zigzag structure.In the present embodiment, every group of spring radical is 4.In the present embodiment, buffering knot
Structure is constituted using some groups of even number root springs, when the door-plate of fire resistant doorsets cuts out, is acted on by stress, is inclined and symmetrically arranged
Even number root spring meeting Shunping County on the inside of door-plate, when the door-plate of fire resistant doorsets is opened, is acted on by the elastic force of spring, is recoiled to rapidly
Triangle zigzag structure, during fire, can effectively flick fire resistant doorsets, increase the help time, during without fire, effectively can buffer anti-
The door-plate decrease speed of vent, it is ensured that safety.
As shown in Figure 1：Fire prevention door board 2 is respectively arranged with draw off gear near upper and lower two sides of doorframe 1, on this,
Lower two sides are respectively arranged with the cavity 5 matched with 6 width of door-plate unit, and draw off gear is arranged in the cavity 5.
Specifically, as shown in Figure 2,3：Draw off gear includes slide rail 7, drive motor 8, roller bearing 9 and is arranged roller bearing 9 edge
The rolling chain 10 that slide rail 7 is arranged in slide rail 7, door-plate 2 is by rolling 10 mobile link of chain on slide rail 7.It is of the invention reasonable
The automatization of fire prevention door board folding and unfolding is realized, and it is reasonable in design, space is saved, it is safe and reliable.
As shown in Figure 4：The structure of slide rail 7 can also be：Including 2 transverse slats that transversely plane extends, respectively transverse slat
A71 and transverse slat B72, is arranged with T-shaped slot 73, T-shaped slot in parallel at the position of middle part correspondence door-plate unit 6 on the transverse slat
Buffer stopper 74 is provided with 73.The structure design of slide rail in the present embodiment, facilitates roller bearing to roll, and reduces friction resistance when rolling
Power, improves the efficiency of folding and unfolding fire prevention door board, reduces the folding and unfolding time, convenient and practical.
For the fireproof door plate that one of the above fire resistant doorsets are used, as shown in Figure 5：Fireproof door plate includes front door 11, back door
Plate 12 and symmetrically arranged two side door plate, respectively left door plate 14 and right door plate 13, door-plate is to be provided with hollow frame in front and back
Door-plate, be provided with fire proof construction 15 in the hollow frame.In the present invention, it is contemplated that fire resistant doorsets constitute the fire prevention of structure itself
Property, in front and back's door-plate is configured with into the door-plate of hollow frame, fire proof construction in the hollow frame, is provided with, simple structure, design
Rationally, and fire protecting performance can be effectively increased, practicality is greatly increased.
As shown in Figure 5：As the preferred of the present embodiment：Fire proof construction 15 is specially：Including several thermal resistance anti-flammabilitys
Fireproof strip, in the full whole hollow frame of fireproof strip filling, and fireproof strip is fixed in hollow frame with alternative form, the fireproof strip
Both sides peripheral edge surface is provided with the fixed strip 16 of thermal resistance anti-flammability, and each fixed strip 16 is installed in the inner surface of framework.This
In bright, fireproof strip is fixed with alternative form, the compactness for being conducive to fireproof strip to arrange, and reduces fireproof strip aligned gaps, improves anti-
Fiery performance, in addition, the fireproof strip both sides peripheral edge surface is provided with the fixed strip of thermal resistance anti-flammability, and each fixed strip is installed in frame
The inner surface of body, increases fireproof strip tautness.
Described above illustrates and describes the preferred embodiments of the present invention, as previously mentioned, it should be understood that not office of the invention
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and
Environment, and can be changed by the technology or knowledge of above-mentioned teaching or association area in invention contemplated scope described herein
It is dynamic.And change that those skilled in the art are carried out and change be without departing from the spirit and scope of the present invention, then all should be appended by the present invention
In scope of the claims.
Claims (8)
1. a kind of fire resistant doorsets, including door-plate (2) and are sleeved on the doorframe (1) of door-plate (2) periphery, it is characterised in that：It is described anti-
Distance positioning device (3) is provided between the doorframe (1) and door-plate (2) of vent, the distance positioning device (3) is set in uniform intervals
Put, on the inside of the door-plate (2) of the fire resistant doorsets, be provided with buffer structure (4), the buffer structure (4) is respectively arranged at door-plate (2)
Both sides centre position；Described distance positioning device (3) are anti-flammability elasticity spring, and one end of the anti-flammability elasticity spring is fixed on
On the inside of doorframe (1), the other end is fixed on the inner side of door-plate (2), and the anti-flammability elasticity spring overall structure is by several
"Ji" type anti-flammability spring unit is sequentially connected composition；Described buffer structure (4) include some groups of even number root springs, described every
Group even number root spring is inclined respectively and is symmetrical arranged, and is monolithically fabricated triangle zigzag structure.
2. fire resistant doorsets according to claim 1, it is characterised in that：Described door-plate (2) include 2 door-plate units (6), described
2 door-plate units (6) are arranged in order setting with upper and lower form.
3. fire resistant doorsets according to claim 1, it is characterised in that：The "Ji" type anti-flammability spring unit number is 3
～6.
4. fire resistant doorsets according to claim 1, it is characterised in that：It is described fire prevention door board (2) near doorframe (1) it is upper,
Lower two sides are respectively arranged with draw off gear, and described upper and lower two sides are respectively arranged with and door-plate unit (6) width phase
The cavity (5) of matching, the draw off gear are arranged in the cavity (5).
5. fire resistant doorsets according to claim 4, it is characterised in that：The draw off gear includes slide rail (7), drive motor
(8), roller bearing (9) and be arranged the roller bearing (9) and the rolling chain in the slide rail (7) be arranged at along the slide rail (7)
(10), described door-plate (2) pass through rolling chain (10) mobile link on the slide rail (7).
6. fire resistant doorsets according to claim 5, it is characterised in that：Described slide rail (7) including 2 transversely plane extend
The corresponding door-plate unit in middle part on transverse slat, respectively transverse slat A (71) and transverse slat B (72), transverse slat A (71) and transverse slat B (72)
(6) it is arranged with parallel at position in T-shaped slot (73), T-shaped slot (73) and is provided with buffer stopper (74).
7. the fireproof door plate that the fire resistant doorsets described in a kind of claim 1 are used, it is characterised in that：The fireproof door plate includes Qianmen
Plate (11), Rear Door (12) and symmetrically arranged two side door plate, the door-plate in front and back is the door-plate for being provided with hollow frame, should
Fire proof construction (15) is provided with hollow frame.
8. the fireproof door plate that fire resistant doorsets according to claim 7 are used, it is characterised in that：Fire proof construction (15) are concrete
For：Including the fireproof strip of several thermal resistance anti-flammabilitys, in the fireproof strip filling completely whole hollow frame, and fireproof strip is with staggeredly
Form is fixed in hollow frame, and the fireproof strip both sides peripheral edge surface is provided with the fixed strip (16) of thermal resistance anti-flammability, and respectively
Fixed strip (16) is installed in the inner surface of framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695045.XA CN105178820B (en) | 2015-08-21 | 2015-10-23 | Fireproof door and fireproof door plate used by same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516136 | 2015-08-21 | ||
| CN2015105161362 | 2015-08-21 | ||
| CN201510695045.XA CN105178820B (en) | 2015-08-21 | 2015-10-23 | Fireproof door and fireproof door plate used by same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178820A CN105178820A (en) | 2015-12-23 |
| CN105178820B true CN105178820B (en) | 2017-03-22 |
Family
ID=54901182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695045.XA Active CN105178820B (en) | 2015-08-21 | 2015-10-23 | Fireproof door and fireproof door plate used by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178820B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3238236A1 (en) * | 1982-10-15 | 1984-04-19 | Bio-Brandschutz Isoliersysteme Osnabrück GmbH & Co KG, 4500 Osnabrück | Fire-protection glazing |
| CN101781964A (en) * | 2009-01-16 | 2010-07-21 | Lg化学株式会社 | Fire-retardant door |
| CN203008617U (en) * | 2012-11-17 | 2013-06-19 | 重庆市南川道南中学校 | Novel spring window |
| CN103726766A (en) * | 2013-02-08 | 2014-04-16 | 恒益卷闸工程有限公司 | fire-proof door |
| CN205100827U (en) * | 2015-08-21 | 2016-03-23 | 南通金亿达门业有限公司 | Prevent fire door and that uses prevents fire door board thereof |
-
2015
- 2015-10-23 CN CN201510695045.XA patent/CN105178820B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3238236A1 (en) * | 1982-10-15 | 1984-04-19 | Bio-Brandschutz Isoliersysteme Osnabrück GmbH & Co KG, 4500 Osnabrück | Fire-protection glazing |
| CN101781964A (en) * | 2009-01-16 | 2010-07-21 | Lg化学株式会社 | Fire-retardant door |
| CN203008617U (en) * | 2012-11-17 | 2013-06-19 | 重庆市南川道南中学校 | Novel spring window |
| CN103726766A (en) * | 2013-02-08 | 2014-04-16 | 恒益卷闸工程有限公司 | fire-proof door |
| CN205100827U (en) * | 2015-08-21 | 2016-03-23 | 南通金亿达门业有限公司 | Prevent fire door and that uses prevents fire door board thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105178820A (en) | 2015-12-23 |
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