CN207829740U - A kind of fire resistance steel door - Google Patents
A kind of fire resistance steel door Download PDFInfo
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- CN207829740U CN207829740U CN201721601963.2U CN201721601963U CN207829740U CN 207829740 U CN207829740 U CN 207829740U CN 201721601963 U CN201721601963 U CN 201721601963U CN 207829740 U CN207829740 U CN 207829740U
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Abstract
The utility model discloses a kind of fire resistance steel doors, its key points of the technical solution are that including fireproof door plate and doorframe, the fireproof door plate includes steel side plate one, steel side plate two and center clamping plate, two dismantling connection of the steel side plate one and steel side plate, the center clamping plate is folded between steel side plate one and steel side plate two, the both sides of the center clamping plate are equipped with several cellular circular holes, fire-proof sponge block is arranged in the circular hole, the fire resistance steel door can keep the barrier to fire behavior under fire behavior situation occurred, have and stablize fire resistance.
Description
Technical field
The utility model is related to fireproof section bar field, more particularly to a kind of fire resistance steel door.
Background technology
Fire resistant doorsets have a wide range of applications, fire resistant doorsets remove as important fireproof section bar in the building facilities of modernization
Have the function of except common door, with more fire spreading is prevented, provides the function of grace time for evacuating personnel.Present city
Fire resistant doorsets tool on face mostly uses steel material to make doorframe, door leaf skeleton and door skin, passes through steel door-plate itself
Apyrous realize the flameproof effect of entire fire resistance steel door.
The Chinese patent of Publication No. CN201062473Y discloses a kind of fire prevention, heat preservation, soundproof door, including inorganic non-ignitable
The door leaf steel plate of anti-fire door core board and door panel both sides, it is characterised in that：The door panel both sides, also set between door leaf steel plate
It is equipped with interlayer.The interlayer is proportion ＜ 50Kg/m3Light material, be tightly attached on door panel, covering door panel area exist
90% or more.The utility model significantly reduces door body weight, and the anti-corrosion characteristic of light material is utilized, and is covered in door panel
On, avoid MgCl2, the corrosion materials such as adhesive be in direct contact with door leaf steel plate, play the role of etch-proof.
Although this fire resistant doorsets realize the effect of fire prevention noise reduction, the chemicals in interlayer by the way of multiple interlayers
Matter will produce toxic gas under the fire behavior condition of high temperature, and the fire-resistance stability of entire fire resistant doorsets reduces.
Utility model content
The purpose of this utility model is to provide a kind of fire resistance steel door, its advantage is that it is advantageously implemented the barrier to fire behavior,
With stable fire resistance.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of fire resistance steel door,
Including fireproof door plate and doorframe, the fireproof door plate includes steel side plate one, steel side plate two and center clamping plate, the steel side
Two dismantling connection of plate one and steel side plate, the center clamping plate is folded between steel side plate one and steel side plate two, in described
The both sides of heart clamping plate are equipped with several cellular circular holes, and fire-proof sponge block is arranged in the circular hole.
Through the above technical solutions, fire resistance steel door is used as surrounding body frame using steel side plate one and steel side plate two
Frame can improve door body itself fire resistance in a high temperauture environment, steel side door one and steel side door two using steel characteristic
The middle part of socket is equipped with center clamping plate, and the both sides of center clamping plate are equipped with several cellular circular holes, are advantageously implemented outside body on the door
Effective absorption of pressure, enhancing fire resistant doorsets internal structure consolidate, and steel side plate one and steel side plate two are sent out under high temperature environment
When raw deformation tendency, cellular circular hole can realize the firm support to steel side plate, reduce the uncontrollable shape under hot environment
Become, while the setting of cellular circular hole can also obstruct noise etc., good sealing muting function be realized, cellular
It is arranged with fire-proof sponge block in circular hole, is advantageously implemented the insulation effect to fire resistant doorsets both sides environment, reduces fire resistant doorsets both sides
Heat exchange, entire fire resistance steel door stabilized structure can realize the barrier to the intensity of a fire under fire behavior situation occurred, have good
Fire resistance.
The utility model is further arranged to：The steel side plate one includes side plate body one and cavity one, the steel side
Plate two includes side plate body two and cavity two, and the cavity one is set in cavity two, and the side wall outer of the cavity one is equipped with platform
Rank block, the step block and the outer of cavity two contradict, and the step block is equipped with threaded hole one, the sidewall end of the cavity two
Face is equipped with the threaded hole two conllinear with one center of threaded hole, and the threaded hole one and two internal thread of threaded hole are connected with locking screw
Bolt.
Through the above technical solutions, steel side plate one and steel side plate two be during installation, the sky of steel side plate one
A chamber part and two part of cavity of steel side plate two are socketed, the step block of the side wall outer and cavity one side wall outer of cavity two
It contradicts, upper equipped with threaded hole one soon in step, the side wall end face of cavity two is equipped with and one mate with threaded holes two of threaded hole, processing
Personnel are by will be in clamping screw knob to threaded hole one and threaded hole two, you can realize to steel side door one and steel side door two
Fixation, clamping screw is arranged to the clamping screw pine for reducing in the side of fire resistant doorsets and being likely to occur during routine use
It is dynamic to fall off, the folding of fire resistant doorsets is influenced, while using the fit system of socket, further improving fire resistance steel door structure
It is firm, reduce the situation that fire behavior etc. enters inside fire resistant doorsets and occurs.
The utility model is further arranged to：It is hinged by steel hinge between the steel side plate two and doorframe.
Through the above technical solutions, for steel hinge is compared to the hinge of other materials, durability is improved, and is had
There is stable fire resistance, can effectively ensure that unfailing performance of the entire fire resistant doorsets under emergency situations.
The utility model is further arranged to：The fireproof door plate is fixed with fire prevention inside the side far from steel hinge
The surface of lock, the steel side plate one and steel side plate two is respectively equipped with the opening of folding Fire-proof lock, is slided respectively in the opening
It is dynamic to be connected with fire-retardant sealing plate.
Through the above technical solutions, using the Fire-proof lock with fire resistance, can ensure in fire behavior high temperature sintering situation
Down lock body can still keep normal open function, and fire-retardant sealing plate is slidably connected in opening, can be when fire behavior occurs
Further protection is carried out to Fire-proof lock by fire-retardant sealing plate, reduces the phenomenon that Fire-proof lock is directly exposed and fire behavior contacts, into
One step ensures normal function of the Fire-proof lock under emergency situations.
The utility model is further arranged to：The side wall of both sides is equipped with fixed block above and below the fire-retardant sealing plate, described
Steel side plate one and two inner wall of steel side plate are equipped with the groove slid for fixed block, and the one end of the groove far from fixed block is fixed
There is limited block, spring is fixed between the fixed block and limited block, telescopic rod, the fire-retardant sealing are arranged in the spring
Inner wall of the plate far from steel side plate one and steel side plate two where one end of doorframe is fixed with electromagnet.
Through the above technical solutions, the fixed block on the side wall of fire-retardant sealing plate both sides slides in groove, it is separate in groove
One end of fixed block is equipped with limited block, spring and telescopic rod is equipped between limited block and fixed block, in the telescopic action of spring
The lower sliding for driving fire-retardant sealing plate, telescopic rod can be to the effects of the flexible realization limition orientation of spring, while in steel side
Plate one and the fixed electromagnet of two inner wall of steel side plate can realize the absorption to fire-retardant sealing plate, under normal condition, electromagnet
Must be electric, fire-retardant sealing plate is adsorbed, the normal exposed of Fire-proof lock is kept, when emergency situations lower electromagnet dead electricity, fire-retardant sealing plate exists
It is slided to the direction far from electromagnet along groove under the contraction of spring, to realize the protection to Fire-proof lock.
The utility model is further arranged to：The control group of control electromagnet gain and loss electricity work is equipped in the fireproof door plate
Part, the control assembly include the control module being fixed in fireproof door plate, set up the thermal sensing of the quadrangle in fireproof door plate separately
Device, the thermal sensing device are connected to control module.
Through the above technical solutions, it is equipped with thermal sensing device in the quadrangle of fireproof door plate, once fire behavior, thermal sensing occurs
Device senses temperature anomaly, and signal is transmitted to control module, control module obtain instruction control electromagnet dead electricity, to real
The closure effect of existing fire-retardant sealing plate.
The utility model is further arranged to：The side of the fire-retardant sealing plate far from center clamping plate is equipped with embedded
Hand.
Through the above technical solutions, due to being slidably connected between fire-retardant sealing plate and steel side plate one and steel side plate two,
Interference moon between steel side plate one and steel side plate two is avoided using setting flush type handle, facilitates the cunning of fire-retardant sealing plate
It moves, meanwhile, it has been also convenient for operating personnel and has slid fire-retardant sealing plate manually, it is swift to operate.
The utility model is further arranged to：The side that the steel side plate one and steel side plate two are contradicted with doorframe is equipped with
Fire-retardant sealing strip.
Through the above technical solutions, fire-retardant sealing strip increases steel side plate one and steel side plate under fire resistant doorsets closed state
Seal degree between two and doorframe reduces gap, has effectively obstructed the smog during fire behavior, while fire-retardant sealing strip is certainly
The fire protecting performance that body has further improves the performance of fire resistance steel door.
The utility model is further arranged to：It is coated with fireproof coating layer on the steel side plate one and steel side plate two.
Through the above technical solutions, fireproof coating layer reduces the spontaneous combustion that fire resistant doorsets may occur under high temp fire situation condition
Deng further improving the fire protecting performance of fire resistance steel door.
In conclusion the utility model has the advantages that：
1, it is fixed by socket between steel side plate one and steel side plate two, is equipped between steel side plate one and steel side plate two
Center clamping plate keeps steady when fire behavior occurs by being provided with conducive to the stabilized structure of enhancing fire resistance steel door for multilayer steel plates
Fixed performance and form reduces the deformation etc. that hot environment may occur, keeps good fire resistance；
2, cellular circular hole is conducive to the compressive property between raising center clamping plate and steel side plate one, steel side plate two；
3, Fire-proof lock can effectively reduce destruction of the fire behavior to lock body, improve fire prevention under the protection of fire-retardant sealing plate
Reliability of the door under emergency situations.
Description of the drawings
Fig. 1 is the structural schematic diagram for showing embodiment；
Fig. 2 is the structural schematic diagram for showing steel side plate one and steel side plate two in embodiment；
Fig. 3 is the partial sectional view for showing fireproof door plate internal structure in embodiment；
Fig. 4 is the enlarged drawing of A in Fig. 3；
Fig. 5 is for showing clamping plate part-structure schematic diagram in center in embodiment；
Fig. 6 is the partial sectional view for showing fire-retardant sealing plate part in embodiment；
Fig. 7 is the enlarged drawing of B in Fig. 5；
Fig. 8 is the enlarged drawing of C in Fig. 6；
Fig. 9 is the schematic diagram for showing the position of thermal sensing device in embodiment.
Reference numeral：1, fireproof door plate；11, steel side plate one；111, side plate body one；112, cavity one；12, steel side plate
Two；121, side plate body two；122, cavity two；13, center clamping plate；131, cellular circular hole；132, fire-proof sponge block；2, doorframe；
3, step block；31, threaded hole one；32, threaded hole two；33, clamping screw；4, steel hinge；5, Fire-proof lock；51, it is open；6, it hinders
Fire sealing plate；61, fixed block；62, groove；63, limited block；64, spring；65, telescopic rod；7, electromagnet；71, control module；
72, thermal sensing device；8, flush type handle；9, fire-retardant sealing strip；10, fireproof coating layer.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：A kind of fire resistance steel door, as shown in Figure 1 and Figure 4, including fireproof door plate 1 and doorframe 2, fireproof door plate 1 wrap
Steel side plate 1, steel side plate 2 12 and center clamping plate 13 are included, steel side plate 2 12 passes through steel hinge 4（As shown in Figure 2）
Hinged with doorframe 2, entire fire resistance steel door uses steel section, realizes that the while of stablizing folding effect improves homeostasis
Fire-resistance, anti-deformation are gone back oiling fireproof coating layer 10 on steel door-plate one, steel door-plate two, can be realized to fire behavior
Barrier, further improves the fire protecting performance of fire resistance steel door.
As shown in Fig. 2, being detachably connected between steel side plate 1 and steel side plate 2 12, steel side plate 1 includes
Side plate body 1 and cavity 1 are equipped with step block 3 in the side wall outer of cavity 1, and steel side plate 2 12 includes side
Plate two and cavity 2 122, one 11 hollow cavity of steel side plate, one 112 side and 2 12 upper plenum of steel side plate, 2 122 place
Side be mutually socketed, cavity 1 is set in cavity 2 122, the step block 3 of one 112 side wall outer of cavity and cavity two
122 side wall outer contradicts, and realizes the socket relationship that side plate one and side plate two are stablized, at the same step block 3 be above additionally provided with
Threaded hole 1 is equipped with the threaded hole two 32 conllinear with one 31 center of threaded hole, installation personnel in the end face of 2 122 side wall of cavity
After completing the socket of steel side plate 1 and steel side plate 2 12, it need to only be revolved in threaded hole 1 and 2 32 internal thread of threaded hole
Twist into clamping screw 33（As shown in Figure 1）The fixation locking effect to steel side plate 1 and steel side plate 2 12 can be realized,
Clamping screw 33 is arranged in the side of fire resistance steel door, avoids being locked below fire resistant doorsets, reduce there may be
The loosening of clamping screw 33 cause unsmooth phenomenon of opening the door, it is convenient to ensure that the daily opening and closing movement of fire resistance steel door is stablized.
As shown in figure 4, in order to further strengthen high temperature resistance, anti-deformation of the fire resistance steel door under fire conditions, it will
Center clamping plate 13 is folded between steel side plate 1 and steel side plate 2 12, and at center, the both sides of clamping plate 13 are equipped with several honeycombs
Shape circular hole 131（As shown in Figure 5）, firm support can be realized to the steel side plate 1 and steel side plate 2 12 of both sides, together
Fire-proof sponge block 132 is arranged in Shi Yuankong（As shown in Figure 5）, be conducive in daily life, the effect warming to indoor realization,
Reduce heat loss, can also obstruct noise.
As shown in Figure 5, it is contemplated that the door lock of evagination and door handle can not ensure just when fire occurs in daily door body
Normal performance, it may appear that the situation that the folding function under high-temperature situation is lost, in order to improve door lock under the generation of high temperature fire behavior
Steady-working state, the fire resistance steel door is far from steel hinge 4（As shown in Figure 2）Side inside be fixed with Fire-proof lock 5, steel
The surface of side plate 1 and steel side plate 2 12 is respectively equipped with the opening 51 of folding Fire-proof lock 5（As shown in Figure 1）, opening 51 on point
Fire-retardant sealing plate 6 is not slidably connected（As shown in Figure 7）, can be realized to 51 interior fire protections of opening lock 5 by fire-retardant sealing plate 6
Protection.
As shown in figure 8, the sliding of fire-retardant sealing plate 6 for convenience, is equipped on the side wall of about 6 both sides of fire-retardant sealing plate
Fixed block 61, steel side plate 1 and 2 12 inner wall of steel side plate are equipped with the groove 62 slid for fixed block 61, pass through fixed block
61 along 62 slot of groove to sliding can be realized fire-retardant sealing plate 6 to opening 51（As shown in Figure 2）Partial folding, it is accurate to realize
Guiding and limit.
As shown in figure 8, since the fire-retardant sealing plate 6 only need to just realize closing under fire behavior generation, in daily life only
It need to be kept open, in order to realize automatic closure of the fire-retardant sealing plate 6 under fire conditions, in fire-retardant sealing plate 6 far from door
The inner wall of steel side plate 1 and steel side plate 2 12 where one end of frame 2 is fixed with electromagnet 7, and electromagnet 7 electric must have
Magnetism can realize the absorption to fire-retardant sealing plate 6, while be fixed with limited block 63 in the one end of groove 62 far from fixed block 61,
Spring 64 is fixed between fixed block 61 and limited block 63, one end and the limited block 63 of spring 64 are fixed, the other end and fixed block
61 fix, and under the opening state of normal fire-retardant sealing plate 6, electromagnet 7 is kept as electricity, and spring 64 keeps elongation state, always
So that fire-retardant sealing plate 6 is had and closes opening 51（As shown in Figure 1）Trend, it is flexible for limited spring 64, reduce irregular
64 deformation effect of spring is plugged with telescopic rod 65, telescopic rod 65 can be to spring to the folding of sealing flame-retardant board in spring 64
64 deformation, which is realized, to be oriented to, and the deformation of spring 64 is made to remain that the slot along groove 62 is flexible to stablizing.
As shown in Figure 8 and Figure 9, the control assembly of control 7 gain and loss electricity of electromagnet work, control are equipped in fireproof door plate 1
Component includes the control module 71 being fixed in fireproof door plate 1（As shown in Figure 6）, set up the temperature-sensitive of the quadrangle in fireproof door plate 1 separately
Inductor 72, thermal sensing device 72 are connected to control module 71, are surpassed when thermal sensing device 72 senses that ambient temperature is promoted suddenly
When crossing fire behavior warning value, signal, 7 dead electricity of electromagnet, work of the fire-retardant sealing plate 6 in 64 convergent force of spring are sent to control module 71
Fire-retardant sealing plate 6 is pulled to 63 side of limited block with lower.To realize to opening 51（As shown in Figure 2）Closure protection, subtract
Small flare is to Fire-proof lock 5（As shown in Figure 7）Partial influence, when fire behavior is eliminated, control module 71 controls electromagnet 7 must be electric, extensive
Multiple magnetism, operating personnel can push fire-retardant sealing plate 6, the electromagnet 7 of itself and one end made to adsorb again manually, keep opening 51
Partial opening state, personnel easy to use open and close Fire-proof lock 5, so as to complete under fire condition, routine use two states
Smooth switching, improve stability of the fire resistance steel door when fire behavior occurs.
As shown in fig. 7, personnel slippaging to the manual of fire-retardant sealing plate 6 in order to facilitate the operation, in fire-retardant sealing plate 6 far from
The side of heart clamping plate 13 is equipped with flush type handle 8, and flush type handle 8 ensure that fire-retardant sealing plate 6 can be realized smoothly to steel
Side plate 1（As shown in Figure 2）, steel side plate 2 12（As shown in Figure 2）Partial sliding, while being also convenient for manual operation.
As shown in Figure 1, because can influence whether it with the appearance of a large amount of dense smokes, the diffusion of dense smoke under fire behavior situation occurred
The emergency evacuation of fire behavior area people does not occur for he, and the fire resistance steel door is in steel side plate 1（As shown in Figure 2）, steel side plate
2 12（As shown in Figure 2）It is equipped with fire-retardant sealing strip 9 with the side that doorframe 2 contradicts, it is fire-retardant close while ensureing to stablize fire resistance
Strip of paper used for sealing 9 can also reduce the gap between fireproof door plate 1 and doorframe 2, to realize effective isolation to dense smoke.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (9)
1. a kind of fire resistance steel door, including fireproof door plate（1）And doorframe（2）, it is characterized in that：The fireproof door plate（1）Including steel
Matter side plate one（11）, steel side plate two（12）With center clamping plate（13）, the steel side plate one（11）With steel side plate two（12）
It is detachably connected, the center clamping plate（13）It is folded in steel side plate one（11）With steel side plate two（12）Between, the center
Clamping plate（13）Both sides be equipped with several cellular circular holes（131）, fire-proof sponge block is arranged in the circular hole（132）.
2. a kind of fire resistance steel door according to claim 1, it is characterized in that：The steel side plate one（11）Including side plate body
One（111）With cavity one（112）, the steel side plate two（12）Including side plate body two（121）With cavity two（122）, the sky
Chamber one（112）It is set in cavity two（122）In, the cavity one（112）Side wall outer be equipped with step block（3）, the step
Block（3）With cavity two（122）Outer contradict, the step block（3）It is equipped with threaded hole one（31）, the cavity two（122）
Side wall end face be equipped with and threaded hole one（31）The conllinear threaded hole two in center（32）, the threaded hole one（31）With threaded hole two
（32）Internal thread is connected with clamping screw（33）.
3. a kind of fire resistance steel door according to claim 1, it is characterized in that：The steel side plate two（12）With doorframe（2）
Between pass through steel hinge（4）It is hinged.
4. a kind of fire resistance steel door according to claim 3, it is characterized in that：The fireproof door plate（1）Far from steel hinge
（4）Side inside be fixed with Fire-proof lock（5）, the steel side plate one（11）With steel side plate two（12）Surface be respectively equipped with
Open and close Fire-proof lock（5）Opening（51）, the opening（51）It is upper to slidably connect fire-retardant sealing plate respectively（6）.
5. a kind of fire resistance steel door according to claim 4, it is characterized in that：The fire-retardant sealing plate（6）Upper and lower both sides
Side wall is equipped with fixed block（61）, the steel side plate one（11）With steel side plate two（12）Inner wall is equipped with for fixed block（61）It is sliding
The groove of shifting（62）, the groove（62）Far from fixed block（61）One end be fixed with limited block（63）, the fixed block（61）
And limited block（63）Between be fixed with spring（64）, the spring（64）Inside it is arranged with telescopic rod（65）, the fire-retardant sealing plate
（6）Far from doorframe（2）One end where steel side plate one（11）With steel side plate two（12）Inner wall be fixed with electromagnet
（7）.
6. a kind of fire resistance steel door according to claim 5, it is characterized in that：The fireproof door plate（1）It is interior to be equipped with control electricity
Magnet（7）The control assembly of gain and loss electricity work, the control assembly include being fixed on fireproof door plate（1）Interior control module
（71）, set up separately in fireproof door plate（1）The thermal sensing device of interior quadrangle（72）, the thermal sensing device（72）With control module（71）
Connection.
7. a kind of fire resistance steel door according to claim 4, it is characterized in that：The fire-retardant sealing plate（6）It is pressed from both sides far from center
Plate（13）Side be equipped with flush type handle（8）.
8. a kind of fire resistance steel door according to claim 1, it is characterized in that：The steel side plate one（11）With steel side plate
Two（12）With doorframe（2）The side of conflict is equipped with fire-retardant sealing strip（9）.
9. a kind of fire resistance steel door according to claim 1, it is characterized in that：The steel side plate one（11）With steel side plate
Two（12）On be coated with fireproof coating layer（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601963.2U CN207829740U (en) | 2017-11-24 | 2017-11-24 | A kind of fire resistance steel door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601963.2U CN207829740U (en) | 2017-11-24 | 2017-11-24 | A kind of fire resistance steel door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207829740U true CN207829740U (en) | 2018-09-07 |
Family
ID=63386865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721601963.2U Active CN207829740U (en) | 2017-11-24 | 2017-11-24 | A kind of fire resistance steel door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207829740U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005321A (en) * | 2019-04-22 | 2019-07-12 | 郑州轻工业学院 | A kind of high impact properties fireproof acoustic door leaf and preparation method thereof |
| CN112412297A (en) * | 2020-11-20 | 2021-02-26 | 江苏盛阳消防门业有限公司 | Reinforced high-flame-retardant smoke-isolating steel fireproof door |
| CN113294074A (en) * | 2021-05-19 | 2021-08-24 | 阜宁县同德建材科技发展有限公司 | Inorganic light non-combustible fireproof door core plate and manufacturing method thereof |
| CN115324460A (en) * | 2022-07-11 | 2022-11-11 | 来安县佳美建材有限公司 | Steel heat-insulation fireproof door and processing method thereof |
-
2017
- 2017-11-24 CN CN201721601963.2U patent/CN207829740U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005321A (en) * | 2019-04-22 | 2019-07-12 | 郑州轻工业学院 | A kind of high impact properties fireproof acoustic door leaf and preparation method thereof |
| CN112412297A (en) * | 2020-11-20 | 2021-02-26 | 江苏盛阳消防门业有限公司 | Reinforced high-flame-retardant smoke-isolating steel fireproof door |
| CN113294074A (en) * | 2021-05-19 | 2021-08-24 | 阜宁县同德建材科技发展有限公司 | Inorganic light non-combustible fireproof door core plate and manufacturing method thereof |
| CN115324460A (en) * | 2022-07-11 | 2022-11-11 | 来安县佳美建材有限公司 | Steel heat-insulation fireproof door and processing method thereof |
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