CN114776192B - High-safety fireproof door - Google Patents
High-safety fireproof door Download PDFInfo
- Publication number
- CN114776192B CN114776192B CN202210354870.3A CN202210354870A CN114776192B CN 114776192 B CN114776192 B CN 114776192B CN 202210354870 A CN202210354870 A CN 202210354870A CN 114776192 B CN114776192 B CN 114776192B
- Authority
- CN
- China
- Prior art keywords
- door
- stop block
- grid plate
- hydrochloric acid
- filled
- 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.)
- Active
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
-
- 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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7015—Door leaves characterised by the filling between two external panels
-
- 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
- E06B5/161—Profile members therefor
-
- 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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7015—Door leaves characterised by the filling between two external panels
- E06B2003/7042—Door leaves characterised by the filling between two external panels with a fire retardant layer
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
Abstract
The invention discloses a high-safety fireproof door, and belongs to the field of fireproof doors. The device comprises: a frame; the two door plates are symmetrically and fixedly arranged on two sides of the frame body; the door plate comprises a containing cavity formed by the first metal layer and the second metal layer in a surrounding mode, the containing cavity is filled with heat insulation materials, and the heat insulation materials are formed by mixing perlite and ammonium carbonate; wherein, the thermal insulation material is filled between two door plates. The invention provides a high-safety fireproof door, which can effectively improve the fireproof performance, so that surrounding inflammables lose oxygen and cannot burn, and meanwhile, smoke is not easy to escape from the fireproof door due to the increase of air pressure; the temperature of the door plate can be reduced, the deformation rate of the door plate is slowed down, the tolerance limit of the door plate is improved, and the door plate can be made to be relatively light.
Description
Technical Field
The invention relates to the field of fireproof doors, in particular to a high-safety fireproof door.
Background
Fireproof doors are doors that meet the requirements of fire resistance stability, integrity and thermal insulation over a period of time. The fire-proof partition is arranged between fire-proof partitions, evacuation stairwells, vertical shafts and the like and has certain fire resistance. Besides the function of a common door, the fireproof door has the function of preventing fire from spreading and smoke from spreading, and can prevent fire from spreading within a certain time, so that people can be evacuated.
Fire doors have a variety of division standards. According to the material, the fireproof doors are divided into a wooden fireproof door, a steel fireproof door and fireproof doors made of other materials; according to the fire resistance limit and the heat insulation performance, the first-class fireproof door is not less than 1.5 hours, the second-class fireproof door is not less than 1 hour, and the third-class fireproof door is not less than 0.5 hour. Generally, fireproof doors with higher fireproof grades are mostly made of steel, and are made of steel materials, namely a door frame, a door leaf framework and a door leaf panel, and fireproof materials are filled in the door leaf. Because the fire-proof door with higher grade has high tolerance limit, the door body is generally thick and heavy, and the steel plate thickness and the filling layer are also thick. On the one hand, in the early stage of fire disaster, the temperature is lower, which is the optimal period for escaping, but the fire door is too thick and is difficult to open, so that escaping is prevented to a certain extent; on the other hand, because the steel prevents fire door plant and is the steel sheet, the thermal conductivity of steel sheet is higher, and when the conflagration takes place, door plant temperature is higher, and when escape personnel promoted thick fire door, contact time is long, door plant temperature is high, can take place serious scald and even can't open fire door owing to the pain of having not endured the scald, and higher temperature makes the door plant warp more serious simultaneously to lead to preventing fire door faster losing the fire prevention effect.
Therefore, how to improve the tolerance limit of the fireproof door and how to reduce the quality of the fireproof door so that the temperature of the door plate is not too high when a fire disaster occurs is an important research direction of the fireproof door.
Disclosure of Invention
The invention provides a high-safety fireproof door, which can solve the problem that the temperature of a metal fireproof door is too high when the fireproof door is thick and heavy and a fire disaster occurs in the prior art.
A high security fire rated door comprising:
a frame; the method comprises the steps of,
the two door plates are symmetrically and fixedly arranged on two sides of the frame body;
the door plate comprises a containing cavity formed by encircling a first metal layer and a second metal layer, wherein the containing cavity is filled with a heat insulation material, and the heat insulation material is formed by mixing perlite and bicarbonate and/or carbonate which are easy to decompose when heated; wherein, the liquid crystal display device comprises a liquid crystal display device,
and a heat insulation material is filled between the two door panels.
More preferably, the bicarbonate is sodium bicarbonate and the carbonate is ammonium carbonate.
More preferably, a grid plate is arranged between the two door plates, the grid plate comprises a plurality of first accommodating grooves, water bags are arranged in the first accommodating grooves, clear water is filled in the water bags, and the water bags are broken to release the clear water when heated and/or pressed.
More preferably, a grid plate is arranged between the two door plates, the grid plate comprises a plurality of first accommodating grooves and second accommodating grooves, the first accommodating grooves and the second accommodating grooves are arranged at intervals up and down, and hydrochloric acid bags and calcium carbonate are respectively filled in the first accommodating grooves and the second accommodating grooves;
the hydrochloric acid bag is filled with dilute hydrochloric acid, and the hydrochloric acid bag is ruptured to release the dilute hydrochloric acid when heated and/or pressed;
the first accommodating groove penetrates into the second accommodating groove.
More preferably, the device further comprises an upper stop block, wherein the upper stop block is arranged in the frame body in a manner of sliding up and down, and is connected to the grid plate; when the pressure in the first accommodating groove and/or the second accommodating groove is increased, the grid plate deforms to drive the upper stop block to move upwards.
More preferably, the device further comprises a lower stop block and a lifting spring, wherein a lifting hole is formed in the frame body, the lifting spring is positioned in the lifting hole, one end of the lifting spring is fixedly connected into the lifting hole, and the other end of the lifting spring is fixedly connected to the lower stop block; the lower stop block is arranged in the frame body in a vertically sliding manner and is connected to the grid plate; when the pressure in the first accommodating groove and/or the second accommodating groove is increased, the grid plate deforms to drive the lower stop block to move downwards.
More preferably, the first accommodating groove and the second accommodating groove are both diamond-shaped structures.
More preferably, the device further comprises a transverse stop block which is arranged in the frame body in a transversely sliding manner, and the transverse stop block is connected to the grid plate; wherein the grid plate is of a negative poisson ratio structure.
The invention provides a high-safety fireproof door, which is characterized in that a door plate is filled with carbonate and/or bicarbonate which are easy to decompose when heated, and carbon dioxide and water are generated by decomposing the carbonate and/or bicarbonate at high temperature when a fire disaster occurs, wherein the carbon dioxide is filled in the door plate, and the fireproof performance can be effectively improved due to the lower heat conductivity coefficient of carbon dioxide gas; water generated by decomposition of carbonate and/or bicarbonate can produce water vapor at high temperature, and a large amount of heat can be taken away by escape of the water vapor, so that the temperature of the door plate is reduced, the deformation rate of the door plate is slowed down, the tolerance limit of the door plate is improved, and meanwhile, the probability of being scalded is reduced when an evacuee pushes the door plate due to the reduction of the temperature of the door plate; the density of carbonate and/or bicarbonate is lower than that of common fireproof filler, and the water generated during decomposition is evaporated, so that the door body is not easy to deform, and the door plate can be made to be relatively light.
Drawings
Fig. 1 is a schematic view of a fire door structure (hidden panel) with high safety according to the present invention;
FIG. 2 is a left side view (partially cross-sectional schematic view) of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a front view of FIG. 1 (with the grid plate not hidden);
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
fig. 6 is a partial enlarged view of fig. 4 at C.
Reference numerals illustrate:
10. a door panel; 101. a first metal layer; 102. a second metal layer; 103. sodium bicarbonate; 104. perlite; 11. a frame; 12. lifting the spring; 13. a transverse stop block; 20. an upper stop block; 21. a lower stop block; 30. a grid plate; 301. a flow hole; 31. a hydrochloric acid bag; 32. and (3) calcium carbonate.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
Embodiment one:
as shown in fig. 1 to 3, a high security fireproof door provided by an embodiment of the present invention includes:
the door comprises a frame 11 and two door panels 10, wherein the frame 11 is a structural member for supporting and installing the door panels 10, the door panels 10 are installed in the frame 11 to form a door leaf, and the door leaf is hinged on a door frame; the two door panels 10 are symmetrically and fixedly arranged on two sides of the frame 11;
as shown in fig. 2, the door panel 10 includes a containing cavity surrounded by a first metal layer 101 and a second metal layer 102, and the containing cavity is filled with a heat insulation material, where the heat insulation material is formed by mixing perlite 104 and ammonium carbonate, or is formed by perlite 104 and sodium bicarbonate 103, and it is understood that the substances can generate carbon dioxide and water when they are decomposed by heating, and can be replaced by substances with the same properties, in this embodiment, sodium bicarbonate 103 is taken as an example; wherein a heat insulating material is filled between two door panels 10. It will be appreciated that the peripheral sides of the first metal layer 101 and the second metal layer 102 are fixedly connected to form a structure having a cavity, such as a hollow cube structure, and the connection may be performed by welding or other mechanical connection, and intermittent welding is adopted during welding, so that gas can escape between the first metal layer 101 and the second metal layer 102.
The density of the sodium bicarbonate 103 is lower than that of the filling materials such as the traditional perlite 104, so that the quality of the fireproof door can be reduced to a certain extent.
The sodium bicarbonate 103 is filled in the door plate 10, so that when a fire disaster occurs, the door plate 10 is heated, the sodium bicarbonate 103 is decomposed at high temperature to generate sodium carbonate, carbon dioxide and water, wherein the carbon dioxide is filled in the door plate 10, and the heat conductivity coefficient of the carbon dioxide gas is lower, so that the fireproof performance can be effectively improved, meanwhile, the escaped gas or the escaped gas is distributed on the periphery of the door plate 10, so that an anoxic environment is formed on the periphery of the fireproof door, high pressure is formed, surrounding inflammables lose oxygen and cannot be combusted, and meanwhile, the smoke is not easy to escape from the fireproof door due to the increase of the air pressure on the periphery of the door plate 10; the water generated by decomposition of the sodium bicarbonate 103 can produce water vapor at high temperature, and a large amount of heat can be taken away by escape of the water vapor, so that the temperature of the door plate 10 is reduced, the deformation rate of the door plate 10 is slowed down, the tolerance limit of the door plate 10 is improved, and meanwhile, the probability of being scalded is reduced when an evacuee pushes the door plate 10 due to the reduction of the temperature of the door plate 10; the water generated during decomposition evaporates to take away a large amount of heat, so that the door body is not easy to deform, and the door panel 10 can be made relatively light.
Embodiment two:
in the first embodiment, since the decomposition temperature of sodium bicarbonate 103 is low, it is considered that decomposition occurs at about 60 °, and it acts when a small fire or an initial stage of the fire occurs. However, since the decomposition is slow, it is difficult to achieve rapid cooling of the door panels 10 in the later stage of the fire or when the fire is severe, in this embodiment, as shown in fig. 2 to 5, a grating 30 is disposed between two door panels 10, the grating 30 includes a plurality of first accommodating grooves, water bags are all disposed in the plurality of first accommodating grooves, clear water is filled in the water bags, and the water bags are ruptured to release the clear water when heated and/or pressed. The water bag can be made of a thin glass material and can also be made of a flame-resistant and high-temperature-resistant plastic material. Preferably, a thimble may be disposed on the second metal layer 102 near one side of the water bag, when the sodium bicarbonate 103 is heated and decomposed to generate carbon dioxide gas, so that pressure between the first metal layer 101 and the second metal layer 102 becomes large, and simultaneously the first metal layer 101 and the second metal layer 102 deform after being heated, and the second metal layer 102 drives the thimble to move towards the direction of the water bag, so as to puncture the water bag, enable clear water to flow out, and be heated to become steam when the clear water flows out, thereby rapidly taking away heat and improving tolerance limit of the door panel 10.
Embodiment III:
unlike the second embodiment, in this embodiment, as shown in fig. 3 to 5, a grid plate 30 is disposed between two door panels 10, the grid plate 30 includes a plurality of first accommodating grooves and second accommodating grooves, the first accommodating grooves and the second accommodating grooves are disposed at an upper and lower interval, and hydrochloric acid bags 31 and calcium carbonate 32 are respectively filled in the first accommodating grooves and the second accommodating grooves; the hydrochloric acid bag 31 is filled with dilute hydrochloric acid, and the hydrochloric acid bag 31 is ruptured to release the dilute hydrochloric acid when heated and/or pressed; the body of the hydrochloric acid bag 31 may be made of a thin glass material, or made of a plastic material with flame resistance and high temperature resistance, and the first accommodating groove penetrates into the second accommodating groove. Specifically, as shown in fig. 5, a circulation hole 301 penetrating into the second accommodation groove is formed in the first accommodation groove filled with the hydrochloric acid bag 31, so that the dilute hydrochloric acid can be mixed with the calcium carbonate 32 after the hydrochloric acid bag 31 is broken. Wherein, the baffle can be made of flame-retardant plastic or metal sheet.
In the later stage of fire, the second metal layer 102 deforms to extrude the hydrochloric acid bag 31 or pierces the hydrochloric acid bag 31 by the ejector pin, the dilute hydrochloric acid flows out and reacts with the calcium carbonate 32 in a mixing way to generate calcium chloride, water and carbon dioxide, and as the dilute hydrochloric acid reacts with the calcium carbonate 32 faster, when the reaction of the sodium bicarbonate 103 and/or the ammonium carbonate is completed, water and carbon dioxide gas can be rapidly supplemented, so that the door plate 10 is continuously cooled, the air pressure at the periphery of the door plate 10 is kept at a higher pressure, and the leakage of smoke is avoided.
Embodiment four:
on the basis of the first to third embodiments, since the door panel 10 is designed to be opened and closed conveniently, a certain gap needs to be left between the upper and lower ends and the door frame and the ground to prevent interference from being generated and the door panel cannot be opened and closed effectively, and thus smoke can escape from the gap when a fire disaster occurs. The flue gas has high temperature and light weight, and is easy to escape from a gap positioned on the upper side. Therefore, in the present embodiment, as shown in fig. 1 and 2, the upper stop 20 is further included, and the upper stop 20 is slidably disposed in the frame 11, and the structure of the upper stop 20 is partially that of the prior art, for example, a sliding groove is formed in the frame 11, so that the upper stop 20 is disposed in the sliding groove, and the upper stop 20 is connected to the grid plate 30; when the pressure in the first accommodating groove and/or the second accommodating groove increases, the pressure in the grid plate 30 increases, and deformation is generated to drive the upper stop block 20 to move upwards.
Wherein, first storage tank and second storage tank all are diamond-shaped structure, can produce carbon dioxide gas after dilute hydrochloric acid and calcium carbonate 32 reaction, and carbon dioxide fills in first storage tank and second storage tank, and grid 30 takes place to warp, produces the trend of motion all around to promote the dog 20 and shift up, and then plug the gap between dog 20 and the door frame, prevent that the flue gas from escaping.
Further, the device also comprises a lower stop block 21 and a lifting spring 12, wherein a lifting hole is formed in the frame 11, the lifting spring 12 is positioned in the lifting hole, one end of the lifting spring 12 is fixedly connected into the lifting hole, and the other end of the lifting spring is fixedly connected to the lower stop block 21, so that the lower stop block 21 is prevented from interfering with the ground under the action of gravity; the lower stopper 21 is provided in the frame 11 slidably up and down, and the lower stopper 21 is connected to the grid plate 30; when the pressure in the first accommodating groove and/or the second accommodating groove is increased, the grid plate 30 deforms to drive the lower stop block 21 to move downwards.
Fifth embodiment:
unlike the fourth embodiment, the cross stopper 13 is further included, the cross stopper 13 is laterally slidably provided in the frame 11, and the cross stopper 13 is connected to the grid plate 30; wherein the grid plate 30 in this embodiment is of a negative poisson's ratio structure. The negative poisson ratio structure can realize that the grid plate 30 can synchronously move around to expand when expanding, and can not transversely shrink due to expansion in the upper and lower directions, so that the grid plate 30 can be ensured to synchronously expand around when being deformed, the upper stop block 20 and the lower stop block 21 respectively move back to back in the vertical direction, the upper stop block 20 seals the upper gap, the lower stop block 21 seals the lower gap, and the transverse stop block 13 can also seal gaps between door gaps under the action of the grid plate 30, thereby achieving a good sealing effect, avoiding flue gas from escaping into a corridor and preventing personnel from escaping.
The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto and variations within the scope of the invention will be apparent to those skilled in the art.
Claims (3)
1. A high security fire rated door comprising:
a frame; the method comprises the steps of,
the two door plates are symmetrically and fixedly arranged on two sides of the frame body;
the door plate comprises a containing cavity formed by encircling a first metal layer and a second metal layer, wherein the containing cavity is filled with a heat insulation material, and the heat insulation material is formed by mixing perlite and bicarbonate and/or carbonate which are easy to decompose when heated; wherein, the liquid crystal display device comprises a liquid crystal display device,
a heat insulation material is filled between the two door plates;
a grid plate is arranged between the two door plates, the grid plate comprises a plurality of first accommodating grooves and second accommodating grooves, the first accommodating grooves and the second accommodating grooves are arranged at intervals up and down, and hydrochloric acid bags and calcium carbonate are respectively filled in the first accommodating grooves and the second accommodating grooves;
the hydrochloric acid bag is filled with dilute hydrochloric acid, and the hydrochloric acid bag is ruptured to release the dilute hydrochloric acid when heated and/or pressed;
the first accommodating groove penetrates into the second accommodating groove;
the upper stop block is arranged in the frame body in a vertically sliding mode and is connected to the grid plate; when the pressure in the first accommodating groove and/or the second accommodating groove is increased, the grid plate deforms to drive the upper stop block to move upwards;
the transverse stop block is arranged in the frame body in a transversely sliding manner and is connected to the grid plate; wherein the grid plate is of a negative poisson ratio structure;
the negative poisson ratio structure can realize that the grid plate can synchronously move around to expand when expanding, and can not transversely shrink due to expansion in the upper and lower directions, so that the grid plate can be ensured to synchronously expand around when being deformed, the upper stop block and the lower stop block respectively move back to back in the vertical direction, the upper stop block can block an upper gap, the lower stop block can block a lower gap, and the transverse stop block can block gaps between door gaps under the action of the grid plate.
2. A high security fire door according to claim 1 wherein said bicarbonate is sodium bicarbonate and said carbonate is ammonium carbonate.
3. The high-safety fireproof door according to claim 2, further comprising a lower stop block and a lifting spring, wherein the frame body is provided with a lifting hole, the lifting spring is positioned in the lifting hole, one end of the lifting spring is fixedly connected into the lifting hole, and the other end of the lifting spring is fixedly connected to the lower stop block; the lower stop block is arranged in the frame body in a vertically sliding manner and is connected to the grid plate; when the pressure in the first accommodating groove and/or the second accommodating groove is increased, the grid plate deforms to drive the lower stop block to move downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210354870.3A CN114776192B (en) | 2022-04-06 | 2022-04-06 | High-safety fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210354870.3A CN114776192B (en) | 2022-04-06 | 2022-04-06 | High-safety fireproof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114776192A CN114776192A (en) | 2022-07-22 |
| CN114776192B true CN114776192B (en) | 2023-09-15 |
Family
ID=82427262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210354870.3A Active CN114776192B (en) | 2022-04-06 | 2022-04-06 | High-safety fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776192B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510935A1 (en) * | 1985-03-26 | 1986-10-09 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Fire-resistant wall element which reduces the passage of heat and is intended in particular as an insert for a fire-retardant door, process for the production thereof and fire-retardant door equipped therewith |
| DE4232312A1 (en) * | 1992-09-26 | 1994-03-31 | Trube & Kings Kg | Fire retardant component |
| JP2016153588A (en) * | 2015-02-17 | 2016-08-25 | 積水化学工業株式会社 | Fireproof fitting |
| CN208203029U (en) * | 2018-05-24 | 2018-12-07 | 天津广脉自动化科技有限公司 | A kind of Environmental-protection fire-proof door |
| CN211923983U (en) * | 2020-02-25 | 2020-11-13 | 广州市日高工贸有限公司 | Forming reinforced fireproof door |
-
2022
- 2022-04-06 CN CN202210354870.3A patent/CN114776192B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510935A1 (en) * | 1985-03-26 | 1986-10-09 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Fire-resistant wall element which reduces the passage of heat and is intended in particular as an insert for a fire-retardant door, process for the production thereof and fire-retardant door equipped therewith |
| DE4232312A1 (en) * | 1992-09-26 | 1994-03-31 | Trube & Kings Kg | Fire retardant component |
| JP2016153588A (en) * | 2015-02-17 | 2016-08-25 | 積水化学工業株式会社 | Fireproof fitting |
| CN208203029U (en) * | 2018-05-24 | 2018-12-07 | 天津广脉自动化科技有限公司 | A kind of Environmental-protection fire-proof door |
| CN211923983U (en) * | 2020-02-25 | 2020-11-13 | 广州市日高工贸有限公司 | Forming reinforced fireproof door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114776192A (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110029922B (en) | Fire-proof door | |
| IE45131B1 (en) | Multiple panes | |
| CN205840696U (en) | Fire resistant window | |
| CN114776192B (en) | High-safety fireproof door | |
| CN112360311A (en) | Prevent fire door with thermal-insulated cooling function | |
| CN114635633B (en) | Expansion sealing type movable fireproof door | |
| CN105952339A (en) | Biparting steel-wood heat-insulation fireproof door with windows and making method thereof | |
| CN206158522U (en) | Take two steel wooden heat -insulating fireproof door of opening of window | |
| CN210422389U (en) | Improved double-opening fireproof door | |
| CN215213185U (en) | Fire-resistant thermal-insulated fire door that prevents | |
| CN105927127A (en) | Hinged wooden heat insulation fireproof door with windows | |
| CN206874181U (en) | Fire-proof sound insulation door | |
| CN111173405A (en) | Section bar, preparation method and application thereof | |
| CN215671900U (en) | Prevent to collapse because of burning fast prevents fire door | |
| CN105909151A (en) | Double-door wooden thermal insulating fireproof door with window and manufacturing method of double-door wooden thermal insulating fireproof door | |
| CN211900258U (en) | Section bar component | |
| CN208473629U (en) | A kind of heat-insulating fireproof door | |
| CN206753386U (en) | A kind of steel wooden heat-insulating fireproof door of the special inserts of band | |
| CN206158521U (en) | Steel wooden heat -insulating fireproof door is run from opposite directions to improved generation | |
| CN215671901U (en) | Prevent because of fire window that burning collapses fast | |
| CN217735321U (en) | Easy-to-open steel heat-insulation fireproof door capable of avoiding scalding | |
| CN112647819B (en) | Steel fireproof door and preparation method thereof | |
| CN219034517U (en) | Steel fireproof door filled with high-flame-retardance composite material | |
| CN210195614U (en) | Novel wooden fire door | |
| CN217206149U (en) | Flat-open type steel heat-insulation fireproof window |
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 | ||
| CB02 | Change of applicant information |
Address after: No. 8, West Ring Road, Qingjiangpu Industrial Park, Huai'an City, Jiangsu Province, 223001 Applicant after: Rongchuang Hong'an fire equipment (Huai'an) Co.,Ltd. Address before: 223001 No. 8, Weike Road, Qingpu Industrial Park, Huai'an City, Jiangsu Province Applicant before: Rongchuang Hong'an fire equipment (Huai'an) Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |