CN114109217B - Smoke choked flow type fireproof door - Google Patents
Smoke choked flow type fireproof door Download PDFInfo
- Publication number
- CN114109217B CN114109217B CN202111496331.5A CN202111496331A CN114109217B CN 114109217 B CN114109217 B CN 114109217B CN 202111496331 A CN202111496331 A CN 202111496331A CN 114109217 B CN114109217 B CN 114109217B
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- CN
- China
- Prior art keywords
- door
- smoke
- ground
- flow
- flow blocking
- 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.)
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Links
- 239000000779 smoke Substances 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000000903 blocking effect Effects 0.000 claims description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 239000012943 hotmelt Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Classifications
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- 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
- 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
-
- 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
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2318—Plastic, sponge rubber, or like strips or tubes by applying over- or under-pressure, e.g. inflatable
-
- 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
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
Abstract
The invention discloses a smoke choked flow type fireproof door which comprises a door frame, a door leaf, a lower gear, a door seam choked flow module and a ground choked flow module, wherein a door seam fireproof expansion sealing strip is arranged on the inner side of the door frame, a pull-down sliding seat is arranged on the inner side of the door frame, a rotating rack is arranged on the inner side of the pull-down sliding seat, the door seam choked flow module is arranged on the inner side of the door seam choked flow module, a choked flow strip is arranged on the inner side of the choked flow slider, a sliding rack is arranged at one end of the choked flow slider, a transmission gear is arranged on the inner side of the door seam choked flow module, and a ground choked flow module is arranged on the inner side of the top end of the lower gear.
Description
Technical Field
The invention relates to the technical field of fireproof doors of fireproof facilities, in particular to a smoke choked flow type 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 stairways, vertical shafts and the like, has certain fire resistance, fire smoke is a main cause of casualties in each path of fire, rises along with the flame after a certain time of combustion begins, and then spreads downwards through entrainment effect, and gradually fills the whole room.
The smoke-proof performance of the fireproof door is determined by the appearance quality of the fireproof door and the installation process of the fireproof door, and besides the above, the fireproof expansion sealing piece is embedded in the gap between the door leaf and the door frame to block smoke.
However, the fire-proof expansion sealing strip sample is prepared in a drying oven with the temperature of 60+/-5 ℃ and the expansion temperature of the fire-proof expansion sealing strip begins to expand approximately at 200 ℃ and reaches the maximum expansion value at 700 ℃, but in the initial stage of a fire, the fire-proof expansion sealing strip is not fully expanded and cannot seal a gap between a door leaf and a door frame, fire smoke can pass through the fire door from the gap to enter a personnel evacuation area and evacuate life safety of personnel to cause certain harm, and in the initial stage of the fire, when the temperature of the fire does not reach the temperature of the fire-proof expansion sealing strip which is fully expanded, the gap between the door leaf and the door frame is sealed and the smoke is blocked, so that the fire-proof fire door with smoke blocking resistance is provided for the problems.
Disclosure of Invention
The invention aims to provide a smoke choked flow type fireproof door so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a flue gas choked flow formula prevents fire door, includes door frame, door leaf, lower shelves, door crack choked flow module and ground choked flow module, the door crack choked flow module is used for carrying out the choked flow to the flue gas when fire initial stage fire prevention expansion sealing strip does not fully expand, and strengthen the closing strength between door leaf and the door frame when preventing fire door and closing, ground choked flow module is used for carrying out the choked flow to the flue gas when fire initial stage fire prevention expansion sealing strip does not fully expand, and realize the anti-trampling damage of the fire prevention expansion sealing strip of shelves department down, the inboard of door frame is equipped with door crack fire prevention expansion sealing strip, the bottom of door frame is equipped with shelves down, the door leaf sets up between door frame and shelves down, the inboard of door frame is equipped with the pull-down slide, the inboard of pull-down slide is equipped with the rotation rack, the inboard of door leaf is equipped with door crack choked flow module, the inboard of door crack choked flow module is equipped with the choked flow slider, the inboard of choked flow slider is equipped with choked flow strip and elastic expansion member, the choked flow strip carries out the flue gas between the door crack, the one end of elastic expansion member is equipped with friction location reinforcement, friction location reinforcement's surface is equipped with triangular rib, and after friction location reinforcement and door frame laminating, the inside is equipped with the door frame, and the seal top of the door leaf, the top is equipped with the seal down crack expansion sealing strip is equipped with the top in the door leaf, the top of the door leaf is sealed with the top of the door leaf under the condition that increases because of the door frame is equipped with the top seal to be sealed to the top in the top of the door frame, realize the choking to the flue gas, prevent stepping on the baffle and shelter from ground fire prevention inflation sealing strip, avoid personnel to trample and cause the damage to fire prevention inflation sealing strip.
Further, the rotating rack is rotationally connected to the inner side of the pull-down sliding seat, the rotating rack is located above the left end of the transmission gear, the rotating rack can be in contact with the transmission gear in the sliding process of the pull-down sliding seat, and the rotating rack and the sliding rack are meshed with the transmission gear, so that the rotating rack drives the transmission gear to rotate, and the rotation of the transmission gear drives the sliding rack to slide.
Still further, pull-down slide inboard is equipped with strong magnet, through strong magnet after pulling down the pull-down slide, the pivot outside of rotating the rack is equipped with torsion spring, the one end of rotating the rack is equipped with the ratchet, the inboard of pull-down slide is equipped with the pawl, through torsion spring automatic rotation after pull-down slide pull-down, and the location of rotating the rack through ratchet and pawl realization after the rotation.
Further, the transmission gear is in a linear array, the transmission gear is connected to the inner side of the door seam flow blocking module through the gear shaft in a rotating mode, the transmission gear is enabled to rotate simultaneously, the inner side of the door seam flow blocking module is provided with a through slot, the sliding racks and the through slots are alternately arranged and correspond to the transmission gear, and the rotating racks can be inserted into the through slot and cannot influence the sliding racks.
Further, prevent stepping on the top that the baffle is located ground fire prevention inflation sealing strip, prevent stepping on the baffle and avoid personnel to trample and cause the damage to ground fire prevention collision strip, the below of ground fire prevention inflation sealing strip is equipped with thrust spring, thrust spring drives ground fire prevention inflation sealing strip automatically upwards, the one end of preventing stepping on the baffle is equipped with tension spring, and tension spring will prevent stepping on the baffle pulling automatically.
Further, the inner side of the ground flow blocking module is provided with a hot melt supporting rod, two ends of the hot melt supporting rod are respectively connected with the bottom end of the anti-stepping baffle plate and the inner side of the ground flow blocking module in a rotating mode, and the hot melt supporting rod positions and supports the anti-stepping baffle plate.
Still further, the inboard of ground choked flow module is equipped with the vaulting pole empty slot, and the vaulting pole empty slot is placed the hot melt vaulting pole, the both ends inboard of hot melt vaulting pole all is equipped with torsion spring, and torsion spring is heated the fracture at the hot melt vaulting pole after, drives the hot melt vaulting pole and rotates, conveniently prevents stepping on the slip of baffle.
Furthermore, the inside of the ground flow blocking module is provided with a flow blocking water tank, the flow blocking water tank is used for placing a water source in the ground flow blocking module 5, the inside of the flow blocking water tank is provided with a water tank pushing plate, the water source in the flow blocking water tank is pushed by the water tank pushing plate, a transmission connecting rod is arranged between the ground fireproof expansion sealing strip and the water tank pushing plate, and the ground fireproof expansion sealing strip is enabled to drive the water tank pushing plate to move after moving through the transmission connecting rod.
Further, the top intercommunication of choked flow basin and lower gear, T type spacing member is worn to be equipped with to the inboard of basin push pedal, and the basin push pedal can carry out spacingly to T type spacing member, the top of T type spacing member is equipped with out the water head, is spacing back at T type spacing member, goes out the water head and seals the choked flow basin.
Further, the application method of the smoke choked flow fireproof door comprises the following steps:
after a fire disaster occurs, closing the door leaf, pulling the pull-down sliding seat downwards, enabling a rotating rack in the pull-down sliding seat to be meshed with the transmission gear and drive the transmission gear to rotate, enabling the sliding rack to drive the flow blocking strip to slide out, and blocking smoke at a door gap between the door frame and the door leaf;
step two, the smoke carries heat to flow between the door leaf and the lower gear, the hot melt stay bar is broken, the tension spring pulls the anti-stepping baffle, the ground fireproof expansion sealing strip is contacted with the bottom end of the door leaf, the water source in the flow-blocking water tank is pushed out by the water tank push plate, and flow blocking is carried out on the smoke.
Compared with the prior art, in the early stage of a fire, under the condition that the temperature of the fire is low and smoke is generated, the fireproof expansion sealing strip is not fully expanded, the smoke can leak along the gap of the fireproof door, the gap between the door frame and the door leaf is shielded through the sliding-out of the flow blocking strip in the door gap flow blocking module, the gap between the door leaf and the lower gear is shielded through the sliding-out of the ground fireproof expansion sealing strip in the ground flow blocking module, the smoke is blocked, the leakage of the smoke is reduced to the greatest extent, the smoke cannot cause harm to evacuation personnel, and the safety in the process of evacuating personnel after the fire occurs is improved.
Compared with the prior art, in the process of choking the smoke by the choking bar, the choking slider drives the friction positioning reinforcing piece to slide out through the elastic telescopic rod piece, the friction positioning reinforcing piece is precisely attached to the door frame under the elasticity of the elastic telescopic rod piece, and the positioning strength of the door leaf after being closed in the door frame is increased through the rib.
Compared with the prior art, the water source in the flow blocking water tank flows out, wets the door leaf and the lower gear, carries out secondary flow blocking on smoke through the water source, prevents the pedal baffle from damaging the ground fireproof expansion sealing strip when no fire disaster occurs, and increases the tightness of the gap between the door leaf and the lower gear.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the technical description of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic view of an installation structure of the door crack choke module of the present invention.
FIG. 3 is a schematic view of the overall structure of the door crack choke module of the present invention.
FIG. 4 is a schematic view of the internal structure of the floor choke module of the present invention.
Fig. 5 is a schematic diagram of the structure of fig. 4 at a.
In the figure: 1. a door frame; 2. a door leaf; 3. downshifting; 4. a door gap choke module; 5. a ground choke module; 6. pulling down the slide; 7. rotating the rack; 8. a transmission gear; 9. sliding racks; 10. a choke slider; 11. a flow blocking bar; 12. an elastic telescopic rod; 13. a friction positioning reinforcement; 14. ground fireproof expansion sealing strips; 15. a thrust spring; 16. a pedal-proof baffle plate; 17. a tension spring; 18. a hot melt stay; 19. a choke water tank; 20. a flume push plate; 21. a transmission link; 22. t-shaped limit rod pieces; 23. a water outlet end socket; 24. fire-proof expansion sealing strip for door seam.
Detailed Description
The present invention will be further described with reference to the following embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort are intended to fall within the scope of the present invention.
Example 1
Referring to fig. 1-5, the invention provides a smoke choke type fireproof door, which comprises a door frame 1, a door leaf 2, a lower gear 3, a door gap choke module 4 and a ground choke module 5, wherein the door gap choke module 4 is used for choke smoke when a fireproof expansion sealing strip at the initial stage of fire is not fully expanded, enhancing the closing strength between the door leaf and the door frame when the fireproof door is closed, the ground choke module 5 is used for choke smoke when the fireproof expansion sealing strip at the initial stage of fire is not fully expanded, preventing trampling damage of the fireproof expansion sealing strip at the lower gear is realized, the inner side of the door frame 1 is provided with a door gap fireproof expansion sealing strip 24, the bottom end of the door frame 1 is provided with the lower gear 3, the door leaf 2 is arranged between the door frame 1 and the lower baffle 3, the inner side of the door frame 1 is provided with a pull-down sliding seat 6, the inner side of the pull-down sliding seat 6 is provided with a rotary rack 7, the inner side of the door leaf 2 is provided with a door gap flow blocking module 4, the inner side of the door gap flow blocking module 4 is provided with a flow blocking sliding block 10, the inner side of the flow blocking sliding block 10 is provided with a flow blocking strip 11 and an elastic telescopic rod 12, one end of the elastic telescopic rod 12 is provided with a friction positioning reinforcing piece 13, one end of the flow blocking sliding block 10 is provided with a sliding rack 9, the inner side of the door gap flow blocking module 4 is provided with a transmission gear 8, the inner side of the top end of the lower baffle 3 is provided with a ground flow blocking module 5, and the inner side of the ground flow blocking module 5 is provided with a ground fireproof expansion sealing strip 14 and a pedal-proof baffle 16.
Specifically, the rotary rack 7 is rotatably connected to the inner side of the pull-down slide 6, the rotary rack 7 is located above the left end of the transmission gear 8, and the rotary rack 7 and the sliding rack 9 are both meshed with the transmission gear 8.
Specifically, the transmission gears 8 are arranged in a linear array, the transmission gears 8 are rotatably connected to the inner sides of the door gap flow blocking modules 4 through gear shafts, through slots are formed in the inner sides of the door gap flow blocking modules 4, and the sliding racks 9 and the through slots are alternately arranged and correspond to the transmission gears 8.
Specifically, the anti-stepping baffle 16 is located above the ground fireproof expansion sealing strip 14, a thrust spring 15 is arranged below the ground fireproof expansion sealing strip 14, and a tension spring 17 is arranged at one end of the anti-stepping baffle 16.
Specifically, the inner side of the ground choke module 5 is provided with a hot-melt stay bar 18, and two ends of the hot-melt stay bar 18 are respectively and rotatably connected to the bottom end of the anti-stepping baffle 16 and the inner side of the ground choke module 5.
Specifically, the inner side of the ground choke module 5 is provided with a choke water tank 19, the inner side of the choke water tank 19 is provided with a water tank pushing plate 20, and a transmission connecting rod 21 is arranged between the ground fireproof expansion sealing strip 14 and the water tank pushing plate 20.
Specifically, the choke water tank 19 is communicated with the top end of the lower gear 3, a T-shaped limit rod piece 22 is arranged on the inner side of the water tank push plate 20 in a penetrating manner, and a water outlet seal head 23 is arranged on the top end of the T-shaped limit rod piece 22.
By adopting the technical scheme: according to the invention, through sliding out of the flow blocking strip 11 in the door gap flow blocking module 4, in the initial stage of fire, the gap between the door frame 1 and the door leaf 2 is blocked by incomplete expansion of the door gap fireproof expansion sealing strip 24, smoke is blocked, in the process, the flow blocking sliding block 10 drives the friction positioning reinforcing piece 13 to slide out through the elastic telescopic rod piece 12, the sliding out of the door frame 1 is precisely jointed under the elastic force of the elastic telescopic rod piece 12, the positioning strength of the door leaf 2 after being closed in the door frame 1 is increased through the rib.
The application method of the smoke choked flow fireproof door provided by the invention comprises the following steps: when a fire disaster occurs, smoke generated by fire disaster combustion flows to the indoor roof direction at first and flows to the upper position of a fireproof door along the roof, a pull rope is penetrated into a hook on a pull-down sliding seat 6, a door leaf 2 is closed, the door leaf 2 is positioned at the inner side of a door frame 1, the pull rope is pulled, the pull-down sliding seat 6 slides out of the door frame 1, the pull-down sliding seat 6 drives a rotating rack 7 to move and contact with a transmission gear 8 in the sliding process of the pull-down sliding seat 6, the continuous movement of the pull-down sliding seat 6 can lead the rotating rack 7 to drive the transmission gear 8 to rotate, the transmission gear 8 meshed with a sliding rack 9 drives the sliding rack 9 to slide under the action of an internal gear of the transmission gear 8, the sliding rack 9 can drive a flow-blocking sliding block 10 to move after sliding, the flow-blocking sliding block 10 drives a flow-blocking bar 11 to slide out of the door leaf 2, the flow-blocking bar 11 is positioned at a gap between the door leaf 2 and the door frame 1, the flow blocking slide block 10 can also drive the elastic telescopic rod piece 12 to enable the elastic telescopic rod piece 12 to move upwards and drive the friction positioning reinforcing piece 13 to move upwards, so that the friction positioning reinforcing piece 13 is tightly attached to the door frame 1, triangular ribs are arranged on the surface of the friction positioning reinforcing piece 13, after the friction positioning reinforcing piece 13 is attached to the door frame 1, the resistance of the door leaf 2 during opening is increased through the ribs, thereby avoiding the situation that the door leaf 2 rotates and the gap between the door leaf 2 and the door frame 1 is increased due to slight touch of wind force or external force in the fire disaster occurrence process, avoiding the situation that the gap is increased due to the opening of the fireproof door leaf and the door frame due to unexpected factors and the smoke leakage due to the increase of the pulling strength required to be applied when the door leaf 2 is opened, and when the fire disaster lasts for a period of time and the fire disaster temperature is gradually increased, the crack fireproof sealing expansion strip 24 can be heated and expanded, the gap between the door leaf 2 and the door frame 1 is completely sealed, and the smoke is choked
Example 2
The same parts as those in embodiment 1 are not described in detail, but are different from each other in a workflow of the smoke choke type fireproof door.
The working flow is as follows: when no fire occurs, the anti-pedal baffle 16 is positioned at the top end of the ground fireproof expansion sealing strip 14 to protect the ground fireproof expansion sealing strip 14, so that the damage to the ground fireproof expansion sealing strip 14 caused by the pedal of a person when the fireproof door is normally used is avoided, in the initial stage of the fire occurrence, after the smoke of the fire rises, the smoke moves downwards and fills a room through the entrainment effect, and after reaching the ground, the smoke slides along the ground until the smoke contacts the fireproof door and passes through a gap between the door leaf 2 at the bottom end of the fireproof door and the lower rail 3, heat carried in the smoke can heat the hot-melt stay bar 18 after being conducted, the hot-melt stay bar 18 can be broken after being heated, and then the broken hot-melt stay bar 18 rotates under the elasticity of the torsion spring, the anti-stepping baffle 16 is not supported, the anti-stepping baffle 16 is driven to slide under the tension of the tension spring 17, the ground fireproof expansion sealing strip 14 is leaked out, the ground fireproof expansion sealing strip 14 slides upwards under the elasticity of the thrust spring 15 and contacts with the bottom end of the door leaf 2, so that the ground fireproof expansion sealing strip 14 blocks smoke, the ground fireproof expansion sealing strip 14 also drives the water tank pushing plate 20 to slide through the transmission connecting rod 21 after moving, the water tank pushing plate 20 pushes out a water source in the water blocking water tank 19, the water tank pushing plate 20 is not limited to the T-shaped limiting rod piece 22 after being pushed, the water source flows into the space between the ground fireproof expansion sealing strips 14 on two sides, and the water source is sealed in a gap between the door leaf 2 and the lower gear 3.
Example 3
The same parts as those in embodiment 1 are not described in detail, but are different from each other in a workflow of the smoke choke type fireproof door.
The working flow is as follows: when a fire disaster happens, the door leaf 2 is evacuated, the pull-down sliding seat 6 is pulled out temporarily or needs to be closed in a delayed manner, then the rotary rack 7 is driven by the torsion spring at the inner side of the pull-down sliding seat 6, so that the rotary rack 7 and the pull-down sliding seat 6 are in a mutually vertical state, a ratchet wheel at the side edge of the rotary rack 7 is positioned by a pawl in the pull-down sliding seat 6, the rotary rack 7 is positioned, the door leaf 2 is closed after the personnel evacuation is finished, the door leaf 2 is positioned at the inner side of the door frame 1, in the process, the door leaf 2 gradually approaches the pull-down sliding seat 6, the rotary rack 7 is inserted into a through slot in the door slot blocking module 4, and after the rotary rack 7 is inserted, the rotary rack 7 moves relatively with the transmission gear 8 to drive the transmission gear 8 to rotate, the blocking strip 11 is positioned at the gap between the door leaf 2 and the door frame 1, and the friction positioning reinforcing piece 13 is tightly attached to the door frame 1, so that the smoke passing through the gap between the door leaf 2 and the door frame 1 at the initial stage of the fire disaster is blocked in the closing process of the door leaf 2.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood that the technical scheme and the inventive concept according to the present invention are equivalent or changed within the scope of the present invention disclosed by the present invention by those skilled in the art.
Claims (7)
1. The utility model provides a flue gas choked flow prevents fire door, includes door frame, door leaf, lower shelves, door crack choked flow module and ground choked flow module, its characterized in that: the door gap flow blocking module is used for blocking flow of smoke when the fire disaster initial fireproof expansion sealing strip is not fully expanded, and enhancing closing strength between a door leaf and a door frame when the fire disaster initial fireproof expansion sealing strip is closed, the ground flow blocking module is used for blocking flow of smoke when the fire disaster initial fireproof expansion sealing strip is not fully expanded, and preventing trampling damage of the fireproof expansion sealing strip at a lower gear position is realized, the door gap fireproof expansion sealing strip is arranged on the inner side of the door frame, a lower gear is arranged at the bottom end of the door frame, the door leaf is arranged between the door frame and the lower gear, a pull-down sliding seat is arranged on the inner side of the door frame, a rotating rack is arranged on the inner side of the pull-down sliding seat, a door gap flow blocking module is arranged on the inner side of the door leaf, a flow blocking sliding block is arranged on the inner side of the door gap flow blocking block, a friction positioning reinforcing piece is arranged at one end of the elastic telescopic rod, a sliding rack is arranged at one end of the flow blocking block, a transmission gear is arranged on the inner side of the door gap flow blocking module, a ground flow blocking module is arranged on the inner side of the top end of the lower gear, and a ground flow blocking module is provided with ground fireproof expansion and a pedal preventing stop plate;
the inner side of the ground flow blocking module is provided with a flow blocking water tank, the inner side of the flow blocking water tank is provided with a water tank pushing plate, and a transmission connecting rod is arranged between the ground fireproof expansion sealing strip and the water tank pushing plate.
2. A smoke-blocking fire door as defined in claim 1, wherein: the rotary rack is rotationally connected to the inner side of the pull-down sliding seat, the rotary rack is positioned above the left end of the transmission gear, and the rotary rack and the sliding rack are meshed with the transmission gear.
3. A smoke-blocking fire door as defined in claim 2, wherein: the transmission gear is arranged in a linear array, the transmission gear is rotationally connected to the inner side of the door seam flow blocking module through a gear shaft, a penetrating slot is formed in the inner side of the door seam flow blocking module, and the sliding racks and the penetrating slot are alternately arranged and correspond to the transmission gear.
4. A smoke-flow-resistant fire door as claimed in claim 3, wherein: the anti-stepping baffle is located above the ground fireproof expansion sealing strip, a thrust spring is arranged below the ground fireproof expansion sealing strip, and a tension spring is arranged at one end of the anti-stepping baffle.
5. The smoke-resistant fire door of claim 4 wherein: the inner side of the ground flow blocking module is provided with a hot melt stay bar, and two ends of the hot melt stay bar are respectively connected with the bottom end of the pedal-proof baffle plate and the inner side of the ground flow blocking module in a rotating way.
6. The smoke-resistant fire door of claim 5 wherein: the flow blocking water tank is communicated with the top end of the lower gear, a T-shaped limit rod piece is arranged on the inner side of the water tank push plate in a penetrating mode, and a water outlet end socket is arranged on the top end of the T-shaped limit rod piece.
7. The method of using a smoke-blocking fire door as defined in claim 6, comprising the steps of:
after a fire disaster occurs, closing the door leaf, pulling the pull-down sliding seat downwards, enabling a rotating rack in the pull-down sliding seat to be meshed with the transmission gear and drive the transmission gear to rotate, enabling the sliding rack to drive the flow blocking strip to slide out, and blocking smoke at a door gap between the door frame and the door leaf;
step two, the smoke carries heat to flow between the door leaf and the lower gear, the hot melt stay bar is broken, the tension spring pulls the anti-stepping baffle, the ground fireproof expansion sealing strip is contacted with the bottom end of the door leaf, the water source in the flow-blocking water tank is pushed out by the water tank push plate, and flow blocking is carried out on the smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496331.5A CN114109217B (en) | 2021-12-09 | 2021-12-09 | Smoke choked flow type fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496331.5A CN114109217B (en) | 2021-12-09 | 2021-12-09 | Smoke choked flow type fireproof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114109217A CN114109217A (en) | 2022-03-01 |
| CN114109217B true CN114109217B (en) | 2023-11-24 |
Family
ID=80364348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496331.5A Active CN114109217B (en) | 2021-12-09 | 2021-12-09 | Smoke choked flow type fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114109217B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090009767U (en) * | 2008-03-25 | 2009-09-30 | 안성일 | Door apparatus for preventing door gap |
| JP2014134063A (en) * | 2013-01-11 | 2014-07-24 | Kaken Hanbai Kk | Adjusting device of gap closing member |
| CN207194765U (en) * | 2017-08-16 | 2018-04-06 | 深圳市宝盾门业科技有限公司 | A kind of Novel fire-proof door |
| CN207212119U (en) * | 2017-08-16 | 2018-04-10 | 深圳市宝盾门业科技有限公司 | A kind of fire resistant doorsets |
| CN211370166U (en) * | 2020-01-08 | 2020-08-28 | 湖北友宁门业有限公司 | Steel fireproof door with smoke blocking device |
| CN214835889U (en) * | 2021-03-10 | 2021-11-23 | 浙江丰成门业有限公司 | Emergency smoke-proof door |
-
2021
- 2021-12-09 CN CN202111496331.5A patent/CN114109217B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090009767U (en) * | 2008-03-25 | 2009-09-30 | 안성일 | Door apparatus for preventing door gap |
| JP2014134063A (en) * | 2013-01-11 | 2014-07-24 | Kaken Hanbai Kk | Adjusting device of gap closing member |
| CN207194765U (en) * | 2017-08-16 | 2018-04-06 | 深圳市宝盾门业科技有限公司 | A kind of Novel fire-proof door |
| CN207212119U (en) * | 2017-08-16 | 2018-04-10 | 深圳市宝盾门业科技有限公司 | A kind of fire resistant doorsets |
| CN211370166U (en) * | 2020-01-08 | 2020-08-28 | 湖北友宁门业有限公司 | Steel fireproof door with smoke blocking device |
| CN214835889U (en) * | 2021-03-10 | 2021-11-23 | 浙江丰成门业有限公司 | Emergency smoke-proof door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114109217A (en) | 2022-03-01 |
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