CN114635633A - Expansion sealing type movable fireproof door - Google Patents
Expansion sealing type movable fireproof door Download PDFInfo
- Publication number
- CN114635633A CN114635633A CN202210284128.XA CN202210284128A CN114635633A CN 114635633 A CN114635633 A CN 114635633A CN 202210284128 A CN202210284128 A CN 202210284128A CN 114635633 A CN114635633 A CN 114635633A
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- groove
- fire
- fire prevention
- door
- annular
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- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 230000002265 prevention Effects 0.000 claims abstract description 71
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 34
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 17
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- 238000005096 rolling process Methods 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 230000005489 elastic deformation Effects 0.000 description 11
- 239000003063 flame retardant Substances 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001868 water Inorganic materials 0.000 description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- IKUPISAYGBGQDT-UHFFFAOYSA-N copper;dioxido(dioxo)molybdenum Chemical compound [Cu+2].[O-][Mo]([O-])(=O)=O IKUPISAYGBGQDT-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000006049 ring expansion reaction Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
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
- E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
Abstract
The application discloses inflation sealed formula activity prevents fire door, relate to the technical field who prevents fire door, including the door frame, the rotation sets up the door leaf on the door frame, be provided with the annular along the lateral wall all around on the door leaf, the embedded fire prevention gasbag ring that is equipped with along the extending direction of annular arranges that the annular is provided with the caulking groove along inside wall all around on the door frame, the fire prevention sealing strip that the extending direction that is provided with the caulking groove in the caulking groove arranged, the annular inlays and is equipped with the fire prevention sponge strip of arranging along the extending direction of annular, fire prevention gasbag ring position is between the inboard of fire prevention sealing strip and fire prevention sponge strip, be provided with sodium bicarbonate in the fire prevention gasbag ring, the fire prevention sealing strip is contradicted on the cell wall of caulking groove towards one side of caulking groove, the fire prevention sponge strip is contradicted on the cell wall of annular towards one side of annular, the outside of fire prevention gasbag ring is contradicted on the inside wall of fire prevention sealing strip and fire prevention sponge strip. This application effectively reduces the flue gas and passes through from the clearance of door leaf and door frame to leakproofness between door leaf and the door frame has been strengthened.
Description
Technical Field
The application relates to the technical field of fireproof doors, in particular to an expansion sealing type movable fireproof door.
Background
The fireproof door can meet the requirements of fire resistance integrity and heat insulation at the same time within a specified time. The fire door separates the room with fire and the escape passage, which can prevent the fire from spreading and the smoke from diffusing, thus being beneficial to the evacuation of people. The fireproof door is a side hung door and can be opened only in a single direction. The fireproof door comprises a door frame, a door leaf, a fireproof hinge, a fireproof lock and other fireproof hardware fittings, wherein a fireproof door closer is installed on the door frame, and the door is automatically closed by the door closer after the fireproof door is opened.
In order to enhance the strength of the fireproof door, the outer surface of the door leaf is coated with the intumescent fire-retardant coating containing basic copper molybdate, the intumescent fire-retardant coating expands and foams when being heated to form a carbonaceous foam heat-insulating layer, the door leaf is closed, the heat is delayed to be transferred to the door leaf, the door leaf is prevented from being ignited and burned or the strength is prevented from being reduced due to the temperature rise, and meanwhile, the basic copper molybdate has good smoke suppression performance.
With respect to the related art in the above, the inventors consider that: the existing fireproof door is easy to deform after being contacted with open fire for a long time, so that a gap between a door leaf and a door frame is increased, the sealing performance of the fireproof door is reduced, smoke diffusion cannot be well prevented, and improvement is needed.
Disclosure of Invention
In order to solve the problem that the long-term indirect back sealing performance of preventing fire door and naked light descends, the application provides an inflation sealed formula activity prevents fire door.
The application provides an expansion seal formula activity prevents fire door adopts following technical scheme:
an expansion sealing type movable fireproof door comprises a door frame and a door leaf rotatably arranged on the door frame, wherein annular grooves are arranged on the peripheral side wall of the upper edge of the door leaf, fire-proof air bag rings which are arranged along the extending direction of the ring groove are embedded in the ring groove, an embedded groove is arranged on the inner side wall of the periphery of the upper edge of the door frame, the embedded groove is internally provided with fireproof sealing strips arranged along the extending direction of the embedded groove, the ring groove is embedded with fireproof sponge strips arranged along the extending direction of the ring groove, the fire-proof air bag ring is positioned between the fire-proof sealing strip and the inner side of the fire-proof sponge strip, sodium bicarbonate is arranged in the fire-proof air bag ring, one side of the fireproof sealing strip, which faces the caulking groove, is abutted against the groove wall of the caulking groove, one side of the fireproof sponge strip, which faces the ring groove, is abutted against the groove wall of the ring groove, the outside of fire prevention gasbag ring is contradicted on the inside wall of fire prevention sealing strip and fire prevention sponge strip.
By adopting the technical scheme, the sodium bicarbonate is sodium bicarbonate powder, the sodium bicarbonate is easily decomposed by heating and gradually generates sodium carbonate, carbon dioxide and water, and when a fire occurs, the door leaf is closed for separation, so that the fireproof airbag ring is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip for elastic reset; when the intensity of a fire is close to the door leaf, the intra-annular sodium bicarbonate of fire prevention gasbag is heated and is decomposed, the fire resistance can be strengthened to fire prevention gasbag ring humidification to its water that produces, the carbon dioxide that produces makes fire prevention gasbag ring expansion, make fire prevention gasbag ring top move fire prevention sealing strip and fire prevention sponge strip, fire prevention sealing strip atress produces elastic deformation and supports the cell wall tightly in the caulking groove, fire prevention sponge strip atress produces elastic deformation and supports the cell wall tightly in the annular, thereby effectively reduce the flue gas and pass through from the clearance of door leaf with the door frame, thereby after preventing fire door and open fire long term contact, effectively guarantee the leakproofness between door leaf and the door frame, strengthen the flue gas and keep apart the effect.
Optionally, the door leaf includes the steel sheet, sets up in the guard plate of steel sheet towards indoor one side, be provided with on the steel sheet and be used for supporting tight mechanism of supporting tight fire prevention gasbag ring, the annular sets up on the lateral wall all around of steel sheet.
By adopting the technical scheme, the protective plate is firstly contacted with the open fire, the steel plate is contacted with the open fire after the protective plate is burnt, and water generated by the decomposition of the sodium bicarbonate can absorb the heat of the steel plate while humidifying the fireproof air bag so as to prolong the service life of the steel plate contacted with the open fire; when intensity of a fire duration is longer, fire sealing strip and fire prevention sponge strip elasticity reduce, the laminating degree of fire sealing strip and caulking groove and fire prevention sponge strip before the annular descends, the leakproofness between door leaf and the door frame descends, consequently, through supporting tight mechanism conflict fire prevention gasbag ring and going on, make fire prevention gasbag ring further conflict fire sealing strip and fire prevention sponge strip, make fire sealing strip and fire prevention sponge strip support the cell wall of caulking groove and the cell wall of annular respectively once more in the circumstances that elasticity reduces, guarantee that the leakproofness between door leaf and the door frame is not influenced.
It is optional, support tight mechanism and include the rolling disc, be used for the butt fire prevention gasbag ring slide the board, the rolling disc rotates and sets up on the steel sheet, be provided with four all with the sliding groove of annular intercommunication along the circumference interval of rolling disc on the steel sheet, the quantity of slide the board is four and slides respectively in the sliding groove that corresponds, be provided with the dwang between rolling disc and the slide board, dwang one end is articulated with the rolling disc, the other end is articulated with the slide board.
Through adopting above-mentioned technical scheme, it rotates to coil self axle center through driving the rotation, the rolling disc rotates and drives the dwang and rotate, the dwang drives the kickboard and slides along the extending direction in groove that slides, the kickboard slides the intra-annular to support tightly on fire prevention gasbag ring to realize that fire prevention gasbag ring further contradicts fire prevention sealing strip and fire prevention sponge strip, realize under the circumstances that fire prevention sealing strip and fire prevention sponge strip reduced elasticity, guarantee that the leakproofness between door leaf and the door frame is not influenced.
Optionally, the hinge point of the rotating rod and the rotating disc is uniformly arranged along the circumferential side wall of the rotating disc.
Through adopting above-mentioned technical scheme, when the rolling disc rotates, four dwang of synchronous drive rotate, and four dwang drive four sliding plate motions in step, and four pin joints are evenly arranged along the circumference lateral wall of rolling disc for four sliding plate sliding distance are synchronous.
Optionally, be provided with on the steel sheet and supply rolling disc embedding and pivoted rotation groove, the axial is provided with the hole of stepping down on the rolling disc, the tank bottom in rotation groove is provided with and steps down the aligned spread groove of hole, it is provided with the gangbar to step down downthehole sliding, gangbar one end card is gone into and is slided in the spread groove, be provided with in the spread groove and be used for driving the gangbar along the linkage spring that the extending direction of spread groove slided, be provided with on the gangbar and be used for driving rolling disc pivoted driving piece.
Through adopting above-mentioned technical scheme, when linkage spring drove the gangbar and slided towards the spread groove in, the driving piece drives the rolling disc and rotates to realize that the rolling disc drives the dwang, and then drive the board butt that slides in fire prevention gasbag ring.
Optionally, the driving piece is including setting up in the gangbar and keeping away from the connecting block of spread groove one end, setting up the actuating lever on the connecting block, be provided with the spacing groove with the axial lead on the rolling disc, the groove depth of spacing groove is and increases step by step around self axial lead, the actuating lever card is gone into and is slided in the spacing groove, the actuating lever is contradicted with the tank bottom of spacing groove, be provided with the fuse of being connected with the gangbar on the guard plate.
Through adopting above-mentioned technical scheme, the fuse link slides towards the spread groove in order to restrict the gangbar, and make the linkage spring atress produce elastic deformation and extension, when the intensity of a fire takes place, the fuse link is heated the disconnection, linkage spring elastic reset just drives the gangbar and slides towards the spread groove in, the actuating lever slides to the groove depths from the shallow department of groove gradually along the extending direction of spacing groove, and then drive the rolling disc and rotate, rotate with the realization automatic rolling disc that drives, and keep the sliding plate to support tight fire prevention gasbag ring, can be under long-time intensity of a fire, ensure that the leakproofness between door leaf and the door frame is not influenced.
Optionally, a plurality of grooves for embedding the fireproof sealing strips are arranged on the groove wall of the caulking groove.
Through adopting above-mentioned technical scheme, when the fire prevention sealing strip was supported tightly by fire prevention gasbag ring, the fire prevention sealing strip produced elastic deformation and in partial embedding recess, was favorable to improving the leakproofness between door leaf and the door frame.
Optionally, be provided with a plurality of chambeies of placing in the steel sheet, the steel sheet is provided with quantity and places the through-hole that the chamber corresponds and communicate and place the chamber towards guard plate one side, it is provided with inflation gasbag, dry powder fire extinguishing agent to place the intracavity, be provided with sodium bicarbonate in the inflation gasbag.
Through adopting above-mentioned technical scheme, when long-time intensity of a fire, the guard plate is burnt out, make the through-hole expose, sodium bicarbonate in the inflation gasbag is heated and decomposes, make the inflation gasbag inflation occupy and place the chamber, and will place the dry powder fire extinguishing agent of intracavity from the through-hole blowout, the volatile decomposition thing of inorganic salt in the dry powder fire extinguishing agent, take place chemical inhibition and negative catalysis with produced free radical or the active group of fuel among the combustion process, make the chain reaction of burning interrupt, effectively reduce near the intensity of a fire of steel sheet, improve the life of steel sheet, sodium bicarbonate is heated the water that the decomposition produced and can effectively cool down to the steel sheet simultaneously, further improve the life of steel sheet.
Optionally, the notch of the ring groove is arranged in a necking manner.
By adopting the technical scheme, the fire-proof airbag ring is favorably limited to be integrally slid out of the annular groove, the limiting effect is achieved, and meanwhile, when the fire-proof airbag ring expands due to heating, the notch of the annular groove is abutted against the surface of the fire-proof airbag ring, so that the fire-proof airbag ring deforms elastically and is sunken inwards, and the sealing performance between the door leaf and the door frame is favorably improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the door leaf is closed to be separated when a fire occurs, so that the fireproof airbag ring is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip to be elastically reset; when the fire is close to the door leaf, the sodium bicarbonate in the fireproof air bag ring is heated and decomposed, the generated water can humidify and enhance the flame retardance of the fireproof air bag ring, the generated carbon dioxide enables the fireproof air bag ring to expand, the fireproof air bag ring pushes the fireproof sealing strip and the fireproof sponge strip, the fireproof sealing strip is stressed to generate elastic deformation and is abutted against the groove wall of the caulking groove, and the fireproof sponge strip is stressed to generate elastic deformation and is abutted against the groove wall of the caulking groove, so that the smoke can be effectively reduced from passing through the gap between the door leaf and the door frame, the sealing property between the door leaf and the door frame is enhanced, and the smoke isolation effect is enhanced;
2. the rotating disc is automatically driven to rotate, the sliding plate is kept to be tightly abutted against the fireproof air bag ring, and the sealing performance between the door leaf and the door frame is not influenced under the long-time fire;
drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of an overall explosion of an embodiment of the present application;
FIG. 3 is a cross-sectional schematic view of a door leaf of an embodiment of the present application;
FIG. 4 is an exploded view of a door leaf of an embodiment of the present application;
FIG. 5 is an enlarged schematic view of section A of an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a steel plate according to an example of the present application.
Description of reference numerals: 1. a door frame; 11. caulking grooves; 12. a fire-resistant sealing strip; 13. a groove; 2. a door leaf; 21. a steel plate; 211. a rotating groove; 212. a sliding groove; 213. connecting grooves; 214. a linkage spring; 215. a placement chamber; 216. a through hole; 22. a protection plate; 23. a ring groove; 24. a fireproof sponge strip; 241. a guide groove; 3. a fire-resistant balloon ring; 4. a tightening mechanism; 41. rotating the disc; 411. a hole of abdication; 412. a limiting groove; 42. a slide plate; 43. rotating the rod; 5. a linkage rod; 6. a drive member; 61. connecting blocks; 62. a drive rod; 7. a fuse; 8. the balloon is inflated.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses inflation sealed activity prevents fire door.
Referring to fig. 1 and 2, an expansion sealing type movable fireproof door comprises a door frame 1 and a door leaf 2, wherein the door frame 1 is rotatably connected with the door leaf 2 through a fireproof hinge, a fireproof lock for locking is installed on the door leaf 2, and a door closer for automatically closing the door leaf 2 is installed on the door frame 1. The door leaf 2 includes steel sheet 21, fixed connection in steel sheet 21 towards indoor one side's guard plate 22, and the guard plate 22 is the PVC board, and the PVC board has good corrosion resistance, insulating nature to have certain mechanical strength.
Referring to fig. 2, fig. 3, annular 23 has been seted up along lateral wall all around on the steel sheet 21, the caulking groove 11 that aligns with annular 23 is seted up along the inside wall all around on the door frame 1, the opening of annular 23 is the throat setting, the embedded fire prevention gasbag ring 3 that arranges along annular 23's extending direction that is equipped with of annular 23, the intussuseption of fire prevention gasbag ring 3 is filled with sodium bicarbonate, the embedded fire prevention sealing strip 12 that arranges along the extending direction of caulking groove 11 that is equipped with of caulking groove 11, the spaced apart recess 13 that is equipped with a plurality of confessions fire prevention sealing strip 12 embedding on the cell wall of caulking groove 11 (the quantity of recess 13 is selected according to actual demand), the cross-section of fire prevention sealing strip 12 is the U type and arranges, the embedded fire prevention sponge strip 24 that arranges along the extending direction of annular 23 that is equipped with of annular 23, the cross-section of fire prevention sponge strip 24 is the U type and arranges. The lateral wall of fire prevention sealing strip 12 and the cell wall laminating of caulking groove 11, the inside wall of fire prevention sealing strip 12 forms the seal groove that supplies fire prevention gasbag ring 3 embedding, the lateral wall of fire prevention sponge strip 24 and the cell wall laminating of annular 23, the holding tank that fire prevention gasbag ring 3 embedding is supplied in the inside wall shaping of fire prevention sponge strip 24, the lateral surface of fire prevention gasbag ring 3 is contradicted on the inside wall of fire prevention sealing strip 12 and fire prevention sponge strip 24.
The fireproof sealing strip 12 is made of flame-retardant rubber, has the characteristics of well delaying ignition, reducing flame propagation speed and self-extinguishing after leaving fire, is favorable for the attachment of the fireproof sealing strip 12 to the caulking groove 11, and improves the overall sealing property. The fireproof sponge strip 24 is made of flame-retardant sponge, the flame-retardant sponge is made of various fireproof materials with various polyurethane added flame retardants, the texture is soft, the fireproof sponge strip 24 is attached to the ring groove 23, and the overall sealing performance is improved. The fire-proof air bag ring 3 is an annular air bag body made of flame-retardant aluminum foil cloth, the flame-retardant aluminum foil cloth is composed of aluminum foil conductive cloth and hot melt adhesive, a special flame-retardant adhesive is selected for compounding to form a dense film, and the compounded aluminum foil has the advantages of smooth and flat surface, high longitudinal and transverse tensile strength, air impermeability, water impermeability, good sealing performance and strong material toughness.
Referring to fig. 3, 4 and 5, a tightening mechanism 4 for tightening the fire-proof airbag ring 3 is installed on the steel plate 21, the tightening mechanism 4 includes a rotating disc 41 rotatably connected to the steel plate 21 and four sliding plates 42 slidably connected to the steel plate 21, a rotating groove 211 for the rotating disc 41 to be embedded and to rotate around its axis is formed in the middle of one side of the steel plate 21 facing the protection plate 22, four sliding grooves 212 are uniformly formed in the circumferential side wall of the rotating groove 211, the positions of the four sliding grooves 212 correspond to the four side walls of the steel plate 21 one by one, one end of the sliding groove 212 far away from the rotating groove 211 is communicated with the annular groove 23, the four sliding plates 42 slide in the corresponding sliding grooves 212, guide grooves 241 corresponding in number and position to the sliding grooves 212 and for the corresponding sliding plates 42 to pass through are formed in the fire-proof sponge strip 24, the sliding plates 42 slide reciprocally along the extending direction of the corresponding sliding grooves 212, a rotating rod 43 is connected between the sliding plate 42 and the rotating disk 41, one end of the rotating rod 43 is hinged with the circumferential side wall of the rotating disk 41, the other end of the rotating rod 43 is hinged with one end of the sliding plate 42 facing the rotating disk 41, and the hinged points of the rotating rod 43 and the rotating disk 41 are uniformly arranged along the circumferential side wall of the rotating disk 41.
Referring to fig. 3, 4 and 5, a yielding hole 411 is axially formed in one side of the rotating disc 41, which is away from the steel plate 21, a connecting groove 213 aligned with the yielding hole 411 is formed in the groove bottom of the rotating groove 211, a linkage rod 5 is connected to the yielding hole 411 in a sliding manner, the linkage rod 5 can be clamped into and slid in the connecting groove 213 towards one end of the steel plate 21, a linkage spring 214 used for driving the linkage rod 5 to slide along the extending direction of the connecting groove 213 is connected to the groove bottom of the connecting groove 213, one end of the linkage spring 214 is fixedly connected with the end of the linkage rod 5, and the other end of the linkage spring is fixedly connected with the groove bottom of the connecting groove 213.
Referring to fig. 3, 4 and 5, the end of the linkage rod 5 away from the connection groove 213 is connected to a driving member 6 for driving the rotation disc 41 to rotate. The driving member 6 comprises a connecting block 61 fixedly connected to one end of the linkage rod 5 far away from the connecting groove 213, and a driving rod 62 fixedly connected to the end face of the connecting block 61 towards the linkage rod 5, wherein the side wall of the rotating disc 41 far away from the steel plate 21 is provided with a limiting groove 412 with the same axial lead, the depth of the limiting groove 412 is gradually increased around the axial lead, the driving rod 62 is far away from one end of the connecting block 61 and is clamped into and slides in the limiting groove 412, and the end of the driving rod 62 is abutted to the bottom of the limiting groove 412. The protection plate 22 is connected with a fuse 7 towards one end of the steel plate 21, one end of the fuse 7 is fixedly connected with the end part of the driving rod 62, the other end of the fuse 7 is fixedly connected with the end surface of the protection plate 22, and when the fuse 7 is not broken, the linkage spring 214 is in an extension state.
Referring to fig. 4, 5 and 6, a plurality of placing cavities 215 are integrally formed in the steel plate 21 (the number of the placing cavities 215 is selected according to actual requirements), through holes 216 corresponding to the placing cavities 215 in number and position are formed in one side, facing the protection plate 22, of the steel plate 21, the through holes 216 are communicated with the corresponding placing cavities 215, an expansion air bag 8 and a dry powder extinguishing agent are installed in the placing cavities 215, sodium bicarbonate is filled in the expansion air bag 8, and the expansion air bag 8 is made of flame-retardant aluminum foil cloth. The expansion air bag 8 is arranged on one side of the placing cavity 215 far away from the through hole 216, the dry powder extinguishing agent is arranged on one side of the placing cavity 215 near the through hole 216, and the dry powder extinguishing agent can be sprayed out through the through hole 216 under the action of the expansion air bag 8.
The implementation principle of the expansion sealing type movable fireproof door in the embodiment of the application is as follows:
when a fire occurs, the door leaf 2 is closed for separation, so that the fireproof airbag ring 3 is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip 12 for elastic reset; when the intensity of a fire is close to door leaf 2, the interior sodium bicarbonate of fire prevention gasbag ring 3 is heated and decomposes, the fire resistance can be strengthened to 3 humidification of fire prevention gasbag ring to the water that its produced, the carbon dioxide that produces makes fire prevention gasbag ring 3 inflation, make 3 tops of fire prevention gasbag ring move fire-proof sealing strip 12 and fire prevention sponge strip 24, 12 atresss of fire-proof sealing strip produce elastic deformation and support the cell wall in caulking groove 11, 24 atresss of fire prevention sponge strip produce elastic deformation and support the cell wall in annular 23, thereby effectively reduce the flue gas and pass through from the clearance of door leaf 2 with door frame 1, thereby strengthened the leakproofness between door leaf 2 and the door frame 1, strengthen the flue gas isolation effect.
When the intensity of a fire takes place, fuse 7 is heated the disconnection, linkage spring 214 elasticity resets and drives gangbar 5 and slides in the spread groove 213, actuating lever 62 slides to the groove depths from the groove is shallow along the extending direction of spacing groove 412 gradually, and then drive rolling disc 41 and rotate, in order to realize that automatic drive rolling disc 41 rotates, rolling disc 41 rotates and drives dwang 43 and rotates, dwang 43 drives the extending direction of sliding plate 42 along sliding groove 212 and slides, support tightly on fire prevention gasbag ring 3 in sliding ring groove 23 of sliding plate 42, and keep sliding plate 42 to support tightly fire prevention gasbag ring 3, can be under long-time intensity of a fire, ensure that the leakproofness between door leaf 2 and the door frame 1 is not influenced.
When a long-time fire, protection plate 22 is burnt out, make through-hole 216 can expose, the interior sodium bicarbonate of inflation gasbag 8 is heated and is decomposed, make inflation gasbag 8 inflation occupy and place chamber 215, and will place the dry powder fire extinguishing agent in the chamber 215 and spout from through-hole 216, effectively reduce the near intensity of a fire of steel sheet 21, improve steel sheet 21's life, the water that sodium bicarbonate was heated and decomposed simultaneously and produces can effectively cool down steel sheet 21, further improve steel sheet 21's life.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides an expansion seal formula activity prevents fire door, includes door frame (1), rotates door leaf (2) that set up on door frame (1), its characterized in that: the door leaf is characterized in that an annular groove (23) is formed in the door leaf (2) along the peripheral side wall, a fire-proof air bag ring (3) arranged along the extending direction of the annular groove (23) is embedded in the annular groove (23), an embedded groove (11) is formed in the door frame (1) along the peripheral inner side wall, fire-proof sealing strips (12) arranged along the extending direction of the annular groove (23) are arranged in the embedded groove (11), fire-proof sponge strips (24) arranged along the extending direction of the annular groove (23) are embedded in the annular groove (23), the fire-proof air bag ring (3) is located between the inner sides of the fire-proof sealing strips (12) and the fire-proof sponge strips (24), sodium bicarbonate is arranged in the fire-proof air bag ring (3), the fire-proof sealing strips (12) are abutted to the groove wall of the embedded groove (11) towards one side of the annular groove (11), the fire-proof sponge strips (24) are abutted to the groove wall of the annular groove (23) towards one side of the annular groove (23), the outside of fire prevention gasbag ring (3) is contradicted on the inside wall of fire prevention sealing strip (12) and fire prevention sponge strip (24).
2. The expansion-sealed fire door as recited in claim 1, wherein: door leaf (2) include steel sheet (21), set up in steel sheet (21) guard plate (22) towards indoor one side, be provided with on steel sheet (21) and be used for supporting tight mechanism (4) of supporting tight fire prevention gasbag ring (3), annular (23) set up on the lateral wall all around of steel sheet (21).
3. The expansion-sealed fire door as recited in claim 2, wherein: support tight mechanism (4) including rolling disc (41), be used for butt fire prevention gasbag ring (3) slide plate (42), rolling disc (41) rotate to set up on steel sheet (21), the circumference interval along rolling disc (41) is provided with four all with sliding groove (212) of annular (23) intercommunication on steel sheet (21), the quantity of sliding plate (42) is four and slides respectively in corresponding sliding groove (212), be provided with dwang (43) between rolling disc (41) and sliding plate (42), dwang (43) one end is articulated with rolling disc (41), the other end is articulated with sliding plate (42).
4. The expansion-sealed fire door as recited in claim 3, wherein: and the hinged point of the rotating rod (43) and the rotating disc (41) is uniformly distributed along the circumferential side wall of the rotating disc (41).
5. The expansion-sealed fire door as recited in claim 4, wherein: be provided with on steel sheet (21) and supply rolling disc (41) embedding and pivoted rotation groove (211), axial is provided with hole of stepping down (411) on rolling disc (41), the tank bottom of rotating groove (211) is provided with spread groove (213) that aligns with hole of stepping down (411), it is provided with gangbar (5) to step down hole (411) internal slipping, gangbar (5) one end card is gone into and is slided in spread groove (213), be provided with in spread groove (213) and be used for driving gangbar (5) along spread direction of spread groove (213) linkage spring (214) that slides, be provided with on gangbar (5) and be used for driving rolling disc (41) pivoted driving piece (6).
6. The expansion-sealed fire door as claimed in claim 5, wherein: drive piece (6) including set up in connecting block (61) of spread groove (213) one end is kept away from in gangbar (5), set up actuating lever (62) on connecting block (61), be provided with spacing groove (412) with the axial lead on rolling disc (41), the groove depth of spacing groove (412) is the increase step by step around self axial lead, actuating lever (62) card is gone into and is slided in spacing groove (412), actuating lever (62) are contradicted with the tank bottom of spacing groove (412), be provided with fuse (7) of being connected with gangbar (5) on guard plate (22).
7. The expansion-sealed fire door as recited in claim 1, wherein: and a plurality of grooves (13) for embedding the fireproof sealing strips (12) are arranged on the groove wall of the embedding groove (11).
8. The expansion-sealed fire door as claimed in claim 2, wherein: be provided with a plurality of chambeies (215) of placing in steel sheet (21), steel sheet (21) are provided with quantity and place chamber (215) and communicate through-hole (216) of placing chamber (215) towards protection plate (22) one side, it is provided with inflation gasbag (8), dry powder fire extinguishing agent in the chamber (215) to place, be provided with sodium bicarbonate in inflation gasbag (8).
9. The expansion-sealed fire door as recited in claim 1, wherein: the notch of the ring groove (23) is arranged in a necking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210284128.XA CN114635633B (en) | 2022-03-22 | 2022-03-22 | Expansion sealing type movable fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210284128.XA CN114635633B (en) | 2022-03-22 | 2022-03-22 | Expansion sealing type movable fireproof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114635633A true CN114635633A (en) | 2022-06-17 |
| CN114635633B CN114635633B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210284128.XA Active CN114635633B (en) | 2022-03-22 | 2022-03-22 | Expansion sealing type movable fireproof door |
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| Country | Link |
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| CN (1) | CN114635633B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288587A (en) * | 2022-07-28 | 2022-11-04 | 来安县佳美建材有限公司 | Multifunctional steel door and manufacturing method of frame thereof |
| CN116937408A (en) * | 2023-08-02 | 2023-10-24 | 弘乐集团有限公司 | Environment-friendly gas ring main unit |
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| US20050284030A1 (en) * | 2004-06-14 | 2005-12-29 | Enrico Autovino | Fire retardant panel door and door frame having intumescent materials therein |
| KR20160107843A (en) * | 2015-03-05 | 2016-09-19 | 탁우찬 | Breech mechanism for fire door |
| CN110700746A (en) * | 2019-10-18 | 2020-01-17 | 山东安舜消防设备有限公司 | Composite steel fire-proof rolling shutter door |
| CN112963074A (en) * | 2021-02-03 | 2021-06-15 | 峰特(浙江)新材料有限公司 | Novel fire-retardant door of preventing fires |
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2022
- 2022-03-22 CN CN202210284128.XA patent/CN114635633B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050284030A1 (en) * | 2004-06-14 | 2005-12-29 | Enrico Autovino | Fire retardant panel door and door frame having intumescent materials therein |
| KR20160107843A (en) * | 2015-03-05 | 2016-09-19 | 탁우찬 | Breech mechanism for fire door |
| CN110700746A (en) * | 2019-10-18 | 2020-01-17 | 山东安舜消防设备有限公司 | Composite steel fire-proof rolling shutter door |
| CN112963074A (en) * | 2021-02-03 | 2021-06-15 | 峰特(浙江)新材料有限公司 | Novel fire-retardant door of preventing fires |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288587A (en) * | 2022-07-28 | 2022-11-04 | 来安县佳美建材有限公司 | Multifunctional steel door and manufacturing method of frame thereof |
| CN116937408A (en) * | 2023-08-02 | 2023-10-24 | 弘乐集团有限公司 | Environment-friendly gas ring main unit |
| CN116937408B (en) * | 2023-08-02 | 2024-02-20 | 弘乐集团有限公司 | Environment-friendly gas ring main unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114635633B (en) | 2024-03-29 |
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