CN114635633B - Expansion sealing type movable fireproof door - Google Patents
Expansion sealing type movable fireproof door Download PDFInfo
- Publication number
- CN114635633B CN114635633B CN202210284128.XA CN202210284128A CN114635633B CN 114635633 B CN114635633 B CN 114635633B CN 202210284128 A CN202210284128 A CN 202210284128A CN 114635633 B CN114635633 B CN 114635633B
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- China
- Prior art keywords
- groove
- fireproof
- air bag
- ring
- door
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 230000000694 effects Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 42
- 238000005096 rolling process Methods 0.000 claims description 31
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 21
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 36
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 230000005489 elastic deformation Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910001868 water Inorganic materials 0.000 description 9
- 239000003063 flame retardant Substances 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
- 239000000779 smoke Substances 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000013329 compounding 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
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling 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
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 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
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
Abstract
The application discloses inflation sealed type activity fire door relates to the technical field that prevents fire door, including the door frame, rotate the door leaf that sets up on the door frame, be provided with the annular along the lateral wall all around on the door leaf, the annular is embedded to be equipped with along the fireproof air bag ring of arranging of the extending direction of annular, be provided with the caulking groove along the inside wall all around on the door frame, the caulking groove is provided with the fireproof sealing strip of arranging of the extending direction of caulking groove, the annular is embedded to be equipped with along the fireproof sponge strip of arranging of the extending direction of annular, the fireproof air bag ring is located between the inboard of fireproof sealing strip and fireproof sponge strip, the fireproof air bag intra-annular is provided with the sodium bicarbonate, the fireproof sealing strip is contradicted on the cell wall of caulking groove towards one side of caulking groove, the fireproof sponge strip is contradicted on the cell wall of annular towards one side of annular, the outside of fireproof air bag ring is contradicted on the inside wall of fireproof sealing strip and fireproof sponge strip. This application effectively reduces the clearance of flue gas from door leaf and door frame and passes through to strengthened the leakproofness between door leaf and the door frame.
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-resistant integrity and heat insulation at the same time in a specified time. The fire door separates the indoor space from the escape channel in which the fire disaster occurs, can prevent the fire from spreading and the smoke from spreading, and is beneficial to people evacuation. The fireproof doors are all vertical hinged doors and can be opened in a single direction only. Fireproof doors are formed by fireproof hardware fittings such as door frames, door leaves, fireproof hinges, fireproof locks and the like, and fireproof door closers are mounted on the door frames and automatically close the doors after the fireproof doors are opened.
In order to enhance the strength of the fireproof door, the outer surface of the door leaf is coated with an expansion type fireproof paint containing basic copper molybdate, the expansion type fireproof paint is expanded by heating to form a carbonaceous foam heat insulation layer, the door leaf is closed, heat transfer to the door leaf is delayed, the door leaf is prevented from being burnt or strength is reduced due to 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 the gap between the door leaf and the door frame is increased, the sealing performance of the fireproof door is further reduced, the smoke diffusion cannot be well prevented, and the fireproof door is to be improved.
Disclosure of Invention
In order to solve the problem that sealing performance is reduced after the fireproof door is contacted with open fire for a long time, the application provides an expansion sealing type movable fireproof door.
The application provides an expansion sealing type movable fireproof door which adopts the following technical scheme:
the utility model provides an inflation sealed type activity prevents fire door, includes the door frame, rotates the door leaf that sets up on the door frame, be provided with the annular along the lateral wall all around on the door leaf, the annular is embedded to be equipped with along the fireproof air bag ring of arranging of the extending direction of annular, the door frame is gone up along the inside wall all around and is provided with the caulking groove, the caulking groove is provided with the fireproof sealing strip that the extending direction of caulking groove arranged, the annular inlays the fireproof sponge strip that is equipped with along the extending direction of annular, the fireproof air bag ring is located between the inboard of fireproof sealing strip and fireproof sponge strip, be provided with the sodium bicarbonate in the fireproof air bag ring, the fireproof sealing strip is contradicted on the cell wall of caulking groove towards one side of caulking groove, the fireproof sponge strip is contradicted on the cell wall with the annular towards one side of annular, the outside of fireproof air bag ring is contradicted on the inside wall of fireproof sealing strip and fireproof sponge strip.
By adopting the technical scheme, the sodium bicarbonate adopts sodium bicarbonate powder, sodium bicarbonate is heated and is easy to decompose, sodium carbonate, carbon dioxide and water are gradually generated, when a fire occurs, the door leaves are closed to separate, and the fireproof air bag ring is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip to 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 produced water can humidify and strengthen the fire resistance to the fireproof air bag ring, the produced carbon dioxide enables the fireproof air bag ring to expand, the fireproof sealing strip and the fireproof sponge strip are driven by the fireproof air bag ring, the fireproof sealing strip is stressed to generate elastic deformation and tightly support the groove wall of the caulking groove, the fireproof sponge strip is stressed to generate elastic deformation and tightly support the groove wall of the annular groove, so that the smoke is effectively reduced to pass through the gap between the door leaf and the door frame, the tightness between the door leaf and the door frame is effectively ensured after the fireproof door is contacted with open fire for a long time, and the smoke isolation effect is enhanced.
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 fire prevention gasbag ring support tight mechanism, the annular sets up on the lateral wall around the steel sheet.
By adopting the technical scheme, the protection plate is firstly contacted with the open fire, the steel plate is contacted with the open fire after the protection plate is burnt, and the water generated by decomposition of 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 the duration of the fire is longer, the elasticity of the fireproof sealing strip and the fireproof sponge strip is reduced, the fitting degree of the fireproof sealing strip, the caulking groove and the fireproof sponge strip before the annular groove is reduced, and the tightness between the door leaf and the door frame is reduced, so that the fireproof air bag ring is abutted against the fireproof air bag ring through the abutting mechanism, the fireproof sealing strip and the fireproof sponge strip are further abutted against the fireproof air bag ring, the groove wall of the caulking groove and the groove wall of the annular groove are respectively abutted against the fireproof sealing strip and the fireproof sponge strip again under the condition of reducing the elasticity, and the tightness between the door leaf and the door frame is ensured not to be influenced.
Optionally, support tight mechanism including the rolling disc, be used for the slip board of butt fire prevention air bag ring, the rolling disc rotates and sets up on the steel sheet, the circumference interval along the rolling disc on the steel sheet is provided with four all with the groove that slides of annular intercommunication, the quantity of slipping the board is four and slides respectively in the corresponding groove that slides, be provided with the dwang between rolling disc and the slip board, dwang one end is articulated with the rolling disc, the other end is articulated with the slip board.
Through adopting above-mentioned technical scheme, through driving to rotate and coiling self axle center rotation, the rolling disc rotates and drives the dwang and rotate, and the dwang drives the board of sliding and slides along the extending direction of groove that slides, and the board of sliding slides and supports tightly on the fire prevention gasbag ring in the annular to realize that fire prevention gasbag ring further contradicts fire prevention sealing strip and fire prevention sponge strip, realize under the condition that fire prevention sealing strip and fire prevention sponge strip reduce elasticity, ensure that the leakproofness between door leaf and the door frame is not influenced.
Optionally, the hinge points of the rotating rod and the rotating disc are uniformly distributed along the circumferential side wall of the rotating disc.
Through adopting above-mentioned technical scheme, when the rolling disc rotates, drive four dwang rotations in step, four dwang synchronous drive four sliding plate movements, four pin joints are evenly arranged along the circumference lateral wall of rolling disc for four sliding plate slide distance is synchronous.
Optionally, be provided with on the steel sheet and supply the embedding of rolling disc and pivoted rotation groove, the axial is provided with the hole of stepping down on the rolling disc, the tank bottom of rotation groove is provided with the spread groove that aligns with the hole of stepping down, the downthehole slip of stepping down is provided with the gangbar, gangbar one end card is gone into and is slided in the spread groove, be provided with the linkage spring that is used for driving the gangbar and slides along the extending direction of spread groove in the spread groove, be provided with on the gangbar and be used for driving rolling disc pivoted driving piece.
Through adopting above-mentioned technical scheme, when the ganging spring drives the ganging lever and slides towards the spread groove, 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 the fire prevention gasbag ring.
Optionally, the driving piece is including setting up in the connecting block that the spread link kept away from spread groove one end, setting up the actuating lever on the connecting block, be provided with the spacing groove of coaxial core on the rolling disc, the groove depth of spacing groove is around self axial lead increase step by step, the actuating lever card is gone into and is slided in the spacing inslot, the actuating lever is contradicted with the tank bottom of spacing groove, be provided with the fuse that is connected with the spread link on the guard plate.
Through adopting above-mentioned technical scheme, the insurance fuse slides towards the spread groove with restriction gangbar to make the linkage spring atress produce elastic deformation and extension, when the intensity of a fire takes place, the insurance fuse is heated to break off, linkage spring elasticity resets and drives the gangbar and slide towards the spread groove, the actuating lever slides to the groove depths gradually from the shallow department of groove along the extending direction of spacing groove, and then drive the rolling disc and rotate, in order to realize automatic driving the rolling disc rotation, and keep the board of sliding to support tight fire prevention gasbag ring, can ensure under long-time intensity of a fire 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 formed in the groove wall of the embedding groove.
Through adopting above-mentioned technical scheme, when the fire prevention sealing strip was supported tightly by the fire prevention gasbag ring, the fire prevention sealing strip produced elastic deformation and part embedding recess in, 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 chambeies was placed in the chamber corresponding and intercommunication towards guard plate one side, place intracavity and be provided with inflation gasbag, dry powder extinguishing agent, be provided with the sodium bicarbonate in the inflation gasbag.
Through adopting above-mentioned technical scheme, when long-time intensity of a fire, the guard plate is burnt for the through-hole can expose, and the sodium bicarbonate in the inflation gasbag is heated and decomposed, makes inflation gasbag inflation occupy and places the chamber, and will place the dry powder extinguishing agent in the chamber and spout from the through-hole, the volatile decomposition thing of inorganic salt in the dry powder extinguishing agent takes place chemical inhibition and negative catalytic action with the free radical or the active group that the fuel produced in the combustion process, makes the chain reaction of burning break, effectively reduces the intensity of a fire near the steel sheet, improves the life of steel sheet, and the water that the sodium bicarbonate is heated and decomposed and produced simultaneously can carry out effective cooling to the steel sheet, further improves the life of steel sheet.
Optionally, the notch of the ring groove is in a necking arrangement.
Through adopting above-mentioned technical scheme, the whole annular that slides of favorable restriction fire prevention gasbag ring plays spacing effect, and when fire prevention gasbag ring thermal expansion simultaneously, the notch of annular supports the surface of tight fire prevention gasbag ring for fire prevention gasbag ring elastic deformation just inwards caves in, is favorable to improving the leakproofness between door leaf and the door frame.
In summary, the present application includes at least one of the following beneficial technical effects:
1. sodium bicarbonate is sodium bicarbonate powder, sodium bicarbonate is heated and is easy to decompose, sodium carbonate, carbon dioxide and water are gradually generated, when a fire occurs, the door leaves are closed to separate, and the fireproof air bag ring is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip to elastically reset; when a fire is close to a door leaf, sodium bicarbonate in the fireproof air bag ring is heated and decomposed, water generated by the sodium bicarbonate can humidify the fireproof air bag ring to strengthen flame retardance, and generated carbon dioxide enables the fireproof air bag ring to expand, so that the fireproof air bag ring is propped against a fireproof sealing strip and a fireproof sponge strip, the fireproof sealing strip is stressed to elastically deform and prop against the groove wall of the caulking groove, the fireproof sponge strip is stressed to elastically deform and prop against the groove wall of the annular groove, so that smoke passing through a gap between the door leaf and a door frame is effectively reduced, sealing performance between the door leaf and the door frame is enhanced, and smoke isolation effect is enhanced;
2. the automatic driving of the rotating disc to rotate is realized, the sliding plate is kept to be abutted against the fireproof air bag ring, and the tightness between the door leaf and the door frame is not influenced under the condition of long-time fire;
drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is an overall exploded schematic of an embodiment of the present application;
fig. 3 is a schematic cross-sectional view of a door leaf according to an embodiment of the present application;
fig. 4 is an exploded schematic view of a door leaf according to 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 sheet according to an embodiment of the present application.
Reference numerals illustrate: 1. a door frame; 11. a caulking groove; 12. fireproof sealing strips; 13. a groove; 2. a door leaf; 21. a steel plate; 211. a rotating groove; 212. a slip groove; 213. a connecting groove; 214. a linkage spring; 215. a placement cavity; 216. a through hole; 22. a protection plate; 23. a ring groove; 24. fireproof sponge strips; 241. a guide groove; 3. a fireproof air bag ring; 4. a tightening mechanism; 41. a rotating disc; 411. a relief hole; 412. a limit groove; 42. a slip plate; 43. a rotating lever; 5. a linkage rod; 6. a driving member; 61. a connecting block; 62. a driving rod; 7. a fuse; 8. the balloon is inflated.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-6.
The embodiment of the application discloses an expansion sealing type movable fireproof 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 rotationally connected with the door leaf 2 through a fireproof hinge, a fireproof lock for locking is arranged on the door leaf 2, and a door closer for automatically closing the door leaf 2 is arranged on the door frame 1. The door leaf 2 comprises a steel plate 21 and a protection plate 22 fixedly connected to the indoor side of the steel plate 21, wherein the protection plate 22 is a PVC plate, and the PVC plate has excellent corrosion resistance and insulativity and has certain mechanical strength.
Referring to fig. 2 and 3, a ring groove 23 is formed in the steel plate 21 along the peripheral side wall, a caulking groove 11 aligned with the ring groove 23 is formed in the peripheral inner side wall of the door frame 1, the opening of the ring groove 23 is in a necking arrangement, a fireproof air bag ring 3 distributed along the extending direction of the ring groove 23 is embedded in the ring groove 23, sodium bicarbonate is filled in the fireproof air bag ring 3, a fireproof sealing strip 12 distributed along the extending direction of the caulking groove 11 is embedded in the caulking groove 11, a plurality of grooves 13 (the number of the grooves 13 is selected according to actual requirements) for embedding the fireproof sealing strip 12 are formed in the groove wall of the caulking groove 11 at intervals, the cross section of the fireproof sealing strip 12 is in a U-shaped arrangement, a fireproof sponge strip 24 distributed along the extending direction of the ring groove 23 is embedded in the ring groove 23, and the cross section of the fireproof sponge strip 24 is in a U-shaped arrangement. The lateral wall of fire prevention sealing strip 12 is laminated with the cell wall of caulking groove 11, and the inside wall of fire prevention sealing strip 12 forms the seal groove that supplies fire prevention gasbag ring 3 embedding, and the lateral wall of fire prevention sponge strip 24 is laminated with the cell wall of annular 23, and the holding tank that supplies fire prevention gasbag ring 3 embedding of the inside wall shaping of fire prevention sponge strip 24, the lateral surface of fire prevention gasbag ring 3 contradict 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 from fire, is beneficial to the fitting of the fireproof sealing strip 12 in the caulking groove 11, and improves the overall tightness. The fireproof sponge strip 24 is made of flame-retardant sponge, the flame-retardant sponge is made of various fireproof materials synthesized by adding flame retardants into polyurethane, the texture is softer, the adhesion of the fireproof sponge strip 24 to the annular groove 23 is facilitated, and the overall tightness is improved. The fireproof 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, the surface of the aluminum foil after compounding is smooth and flat, the longitudinal and transverse tensile strength is high, the air and water tightness is high, the sealing performance is good, and the material toughness is strong.
Referring to fig. 3, fig. 4, fig. 5, install on the steel sheet 21 and be used for supporting tight mechanism 4 of tight fire prevention gasbag ring 3, support tight mechanism 4 including rotating the rolling disc 41 of connecting on the steel sheet 21, four sliding connection are in the guide slot 241 on the steel sheet 21, the rolling groove 211 that supplies rolling disc 41 embedding and rotate around self axial lead is offered to the middle part of steel sheet 21 side towards guard plate 22, evenly offer four sliding groove 212 on the circumference lateral wall of rolling groove 211, four sliding groove 212's position and four lateral walls of steel sheet 21 one-to-one, sliding groove 212 keeps away from rolling groove 211's one end and is linked together with annular 23, four sliding connection are in corresponding sliding groove 212, the guide slot 241 that sliding connection 42 passed is corresponding to sliding groove 212 has been offered on the fire prevention sponge strip 24, sliding connection 42 is followed the reciprocating sliding along the extending direction of corresponding sliding groove 212, be connected with dwang 43 between sliding connection 42 and the rolling disc 41, the one end of dwang 43 articulates with the circumference lateral wall of rolling disc 41, the other end and sliding connection 42 are kept away from rolling disc 41's one end, the articulated with the even hinge point of rolling disc 41 with rolling disc 41 along the lateral wall 41 of rolling disc 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 slidably connected in the yielding hole 411, one end of the linkage rod 5, which faces the steel plate 21, can be clamped into and slides in the connecting groove 213, a linkage spring 214 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 part of the linkage rod 5, and the other end of the linkage spring 214 is fixedly connected with the groove bottom of the connecting groove 213.
Referring to fig. 3, 4 and 5, a driving member 6 for driving the rotating disc 41 to rotate is connected to an end of the link lever 5 remote from the connecting groove 213. The driving piece 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 facing the linkage rod 5, wherein a limiting groove 412 with the same axial lead is formed in the side wall of the rotating disc 41 far away from the steel plate 21, the groove depth of the limiting groove 412 is gradually increased around the axial lead, one end of the driving rod 62 far away from the connecting block 61 is clamped in and slides in the limiting groove 412, and the end part of the driving rod 62 is abutted against the groove bottom of the limiting groove 412. The guard plate 22 is connected with the fuse 7 towards steel sheet 21 one end, and fuse 7 one end and the tip fixed connection of actuating lever 62, the terminal surface fixed connection of the other end and guard plate 22, when fuse 7 is unbroken, the linkage spring 214 is in the 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 demands), through holes 216 with the number and positions corresponding to the placing cavities 215 are formed in the 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 close to the through hole 216, and the dry powder extinguishing agent can be sprayed outwards 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 provided by the embodiment of the application is as follows:
when a fire occurs, the door leaf 2 is closed to separate, so that the fireproof air bag ring 3 is extruded to generate elastic deformation and is embedded into the inner side of the fireproof sealing strip 12 to elastically reset; when the fire is close to door leaf 2, sodium bicarbonate in the fire prevention gasbag ring 3 is heated and decomposed, the fire resistance can be strengthened to fire prevention gasbag ring 3 humidification to the water that it produced, the carbon dioxide that produces makes fire prevention gasbag ring 3 inflation, make fire prevention gasbag ring 3 top move fire prevention sealing strip 12 and fire prevention sponge strip 24, fire prevention sealing strip 12 atress produces elastic deformation and supports tightly in the cell wall of caulking groove 11, fire prevention sponge strip 24 atress produces elastic deformation and supports tightly in the cell wall of annular 23, thereby effectively reduce the clearance of flue gas from door leaf 2 and door frame 1 and passed through, thereby strengthened the leakproofness between door leaf 2 and the door frame 1, strengthen the flue gas isolation effect.
When a fire occurs, the fuse 7 is heated and disconnected, the linkage spring 214 elastically resets and drives the linkage rod 5 to slide in the connecting groove 213, the driving rod 62 gradually slides to the depth of the groove from the shallow position of the groove along the extending direction of the limiting groove 412, and then the rotating disc 41 is driven to rotate, so as to automatically drive the rotating disc 41 to rotate, the rotating disc 41 rotates to drive the rotating rod 43 to rotate, the rotating rod 43 drives the sliding plate 42 to slide along the extending direction of the sliding groove 212, the sliding plate 42 slides in the sliding ring groove 23 to abut against the fireproof air bag ring 3, and the sliding plate 42 is kept to abut against the fireproof air bag ring 3, so that the tightness between the door leaf 2 and the door frame 1 can be ensured not to be influenced under the long-time fire.
When a long-time fire is, the protection plate 22 is burnt out, so that the through holes 216 can be exposed, sodium bicarbonate in the expansion air bag 8 is heated and decomposed, so that the expansion air bag 8 expands to occupy the placing cavity 215, and the dry powder extinguishing agent in the placing cavity 215 is sprayed out of the through holes 216, so that the fire nearby the steel plate 21 is effectively reduced, the service life of the steel plate 21 is prolonged, meanwhile, water generated by the heated and decomposed sodium bicarbonate can effectively cool the steel plate 21, and the service life of the steel plate 21 is further prolonged.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The utility model provides an inflation sealed type 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 (2) is provided with a ring groove (23) along the peripheral side wall, a fireproof air bag ring (3) which is arranged along the extending direction of the ring groove (23) is embedded in the ring groove (23), an embedded groove (11) is arranged along the peripheral inner side wall on the door frame (1), a fireproof sealing strip (12) which is arranged along the extending direction of the embedded groove (11) is arranged in the embedded groove (11), a fireproof sponge strip (24) which is arranged along the extending direction of the ring groove (23) is embedded in the ring groove (23), the fireproof air bag ring (3) is positioned between the fireproof sealing strip (12) and the inner side of the fireproof sponge strip (24), sodium bicarbonate is arranged in the fireproof air bag ring (3), one side of the fireproof sealing strip (12) facing the embedded groove (11) is abutted on the groove wall of the embedded groove (11), one side of the fireproof sponge strip (24) facing the ring groove (23) is abutted on the groove wall of the ring groove (23), and the outer side of the fireproof air bag ring (3) is abutted on the inner side wall of the sealing strip (12) and the fireproof sponge strip (24);
the door leaf (2) comprises a steel plate (21) and a protection plate (22) arranged on one side, facing the indoor, of the steel plate (21), wherein a propping mechanism (4) for propping the fireproof air bag ring (3) is arranged on the steel plate (21), and the annular groove (23) is arranged on the peripheral side wall of the steel plate (21);
the supporting tight mechanism (4) comprises a rotating disc (41) and a sliding plate (42) used for being abutted against the fireproof air bag ring (3), the rotating disc (41) is rotationally arranged on a steel plate (21), four sliding grooves (212) which are communicated with the annular grooves (23) are formed in the steel plate (21) at intervals along the circumferential direction of the rotating disc (41), the number of the sliding plates (42) is four and respectively slides in the corresponding sliding grooves (212), a rotating rod (43) is arranged between the rotating disc (41) and the sliding plate (42), one end of the rotating rod (43) is hinged to the rotating disc (41), and the other end of the rotating rod is hinged to the sliding plate (42).
2. The intumescent, sealed, movable fire door of claim 1 wherein: the hinge points of the rotating rods (43) and the rotating disc (41) are uniformly distributed along the circumferential side wall of the rotating disc (41).
3. The intumescent, sealed, movable fire door of claim 2 wherein: be provided with on steel sheet (21) and supply rolling disc (41) embedding and pivoted rotation groove (211), axial is provided with on rolling disc (41) and gives way hole (411), the tank bottom of rolling disc (211) is provided with spread groove (213) that aligns with hole (411) of giving way, it is provided with gangbar (5) to slide in hole (411) of giving way, 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 extension direction of spread groove (213) sliding gangspring (214), be provided with on gangbar (5) and be used for driving rolling disc (41) pivoted driving piece (6).
4. An intumescent, sealed and movable fire door according to claim 3, wherein: the driving piece (6) is including setting up in connecting block (61) of connecting groove (213) one end is kept away from in gangbar (5), setting up actuating lever (62) on connecting block (61), be provided with spacing groove (412) of coaxial heart line on rotating disk (41), the groove depth of spacing groove (412) is around self heart line increase step by step, actuating lever (62) card is gone into and is slided in spacing groove (412), actuating lever (62) contradict with the tank bottom of spacing groove (412), be provided with fuse (7) that are connected with gangbar (5) on guard plate (22).
5. The intumescent, sealed, movable fire door of claim 1 wherein: a plurality of grooves (13) for embedding the fireproof sealing strips (12) are formed in the groove wall of the embedding groove (11).
6. The intumescent, sealed, movable fire door of claim 1 wherein: the novel fire-extinguishing device is characterized in that a plurality of placing cavities (215) are formed in the steel plate (21), through holes (216) which correspond to the placing cavities (215) in number and are communicated with the placing cavities (215) are formed in one side of the steel plate (21) facing the protection plate (22), an expansion air bag (8) and a dry powder extinguishing agent are arranged in the placing cavities (215), and sodium bicarbonate is arranged in the expansion air bag (8).
7. The intumescent, sealed, movable fire door of claim 1 wherein: the notch of the ring groove (23) is arranged in a necking way.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN114635633A CN114635633A (en) | 2022-06-17 |
| CN114635633B true 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) |
Families Citing this family (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 |
| CN116937408B (en) * | 2023-08-02 | 2024-02-20 | 弘乐集团有限公司 | Environment-friendly gas ring main unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
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2022
- 2022-03-22 CN CN202210284128.XA patent/CN114635633B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN114635633A (en) | 2022-06-17 |
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