CN114109216A - Steel heat-insulation fireproof door device - Google Patents
Steel heat-insulation fireproof door device Download PDFInfo
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- CN114109216A CN114109216A CN202111439617.XA CN202111439617A CN114109216A CN 114109216 A CN114109216 A CN 114109216A CN 202111439617 A CN202111439617 A CN 202111439617A CN 114109216 A CN114109216 A CN 114109216A
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- Prior art keywords
- fire
- plate
- door
- fireproof
- fixed
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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
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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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/42—Sliding wings; Details of frames with respect to guiding
- E06B3/44—Vertically-sliding wings
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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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7015—Door leaves characterised by the filling between two external panels
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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
- 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
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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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7015—Door leaves characterised by the filling between two external panels
- E06B2003/7032—Door leaves characterised by the filling between two external panels of non-vegetal fibrous material, e.g. glass or rock wool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
Abstract
The invention relates to the technical field of heat-insulating fireproof doors, in particular to a steel heat-insulating fireproof door device which comprises an isolation plate, a lifting fireproof assembly, a door plate and a driving assembly, wherein the isolation plate is of a thickened steel plate structure, the gas generated by the decomposition of the flame retardant in the flame retardant strip prevents the combustion, so that the device has triple protection on heat insulation and fire prevention, thereby improving the safety level of the use of the device, and simultaneously, the triple fire prevention of the device has different main emphasis points, the fire-retardant strips mainly have the function of fire extinguishing, the lifting fire-proof component mainly has the function of fire isolation, the door plate mainly has the function of heat insulation, and through the mutual cooperation of the triple heat insulation and fire prevention, thereby further improve the fire prevention rank of the device, put out a fire through setting up fire-retardant strip, can effectively prevent the firing of big fire to other parts of the device, and then reduce the impaired degree of the device to prolong the life-span that the device used.
Description
Technical Field
The invention relates to the technical field of heat-insulating fireproof doors, in particular to a steel heat-insulating fireproof door device.
Background
The fire-proof heat-insulating door device is a door which can meet the requirements of fire-proof stability, integrity and heat-insulating property within a certain period of time, and is a fire-proof partition which is arranged in a fire-proof partition room, an evacuation staircase room, a vertical shaft and the like and has certain fire resistance.
However, there is very big defect in current fire prevention insulated door device in the use, current fire prevention insulated door device uses safety and reliability inadequately, do not possess the function of putting out a fire, at the thermal-insulated in-process of fire prevention, be burnt out easily, thereby unable repetitious usage, the life-span of having reduced the use, current fire prevention insulated door device structure is complicated, when not having the conflagration, still need complicated operation, be unfavorable for daily use, and simultaneously, occupation space is great, current fire prevention insulated door device is not intelligent enough, often need the manual work to go the operation to close, cause personnel's injury easily, the security of using has been reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a steel heat-insulation fireproof door device.
The technical scheme adopted by the invention for solving the technical problems is as follows: a steel heat-insulation fireproof door device comprises a separation plate, a lifting fireproof assembly, door plates and a driving assembly, wherein the separation plate is of a thickened steel plate structure, a square door hole is formed in the center of the separation plate, two door plates are arranged on one side of the separation plate and located at the square door hole, the two door plates are symmetrically arranged and are of a sandwich color steel plate structure filled with rock wool heat-insulation materials, the door plates are matched and used at the door hole of the separation plate, the door plates are of the sandwich color steel plate structure filled with the rock wool heat-insulation materials, meanwhile, the opening and closing speed of the two door plates is higher than that of a single door by arranging the two door plates on the device, so that the two door plates can be conveniently closed in time when a fire disaster happens, a sliding groove is formed downwards in the top of the separation plate, the lifting fireproof assembly and the lifting fireproof assembly of the device are arranged in the sliding groove, through hidden installation, the fireproof outer plate and the fireproof inner plate are hidden below, when a fire disaster does not occur, the lifting fireproof assembly of the device is invisible, the daily use of the device cannot be influenced, meanwhile, the device is simple in structure, the problems that the traditional heat-insulation fireproof door device is complex and bloated in structure and troublesome in daily use are solved, a driving assembly is horizontally fixed at the top of one side, close to the door plates, of the partition plate, the driving assembly drives the two door plates to move relatively, the two door plates are controlled through the driving assembly, the two door plates are opened and closed more automatically, meanwhile, the convenience of daily use of the device is improved through automatic opening and closing of the door plates, meanwhile, when the fire disaster occurs, people do not need to close the door plates, the contact between the people and the device is reduced, the people are protected from being burnt and scalded, and meanwhile, the driving assembly is used for controlling, the door panel can be closed at the first time of a fire without the need of personnel on duty;
wherein, the two ends of the top of the division board are both downwards provided with empty slots for filling fire retardants, the slot openings of the two empty slots for filling the group combustion engines are both matched with a replacing knob in a threaded manner, the two ends of the division board, which are far away from one side of the door panel, are both vertically connected with fire retardant strips, the fire retardant strips are of a hollow structure, the interiors of the fire retardant strips are connected and communicated with the empty slots for filling the group combustion engines of the division board, one sides of the two fire retardant strips are equally spaced and provided with a plurality of through holes, once a fire breaks out, a big fire burns the fire retardant strips, heats and decomposes the fire retardants in the fire retardant strips to generate non-combustible gas, prevents the continuous combustion, and prevents the combustion by decomposing the gas generated by the fire retardant in the fire retardant strips, so that the device has triple protection on heat insulation and fire prevention, and has different main emphasis and the fire extinguishing function, the lifting fireproof assembly mainly has a fire isolating function, the door plate mainly has a heat insulating function, the door plate is matched with the triple heat insulation fireproof, the fire is extinguished by arranging the flame-retardant strip, the firing of a fire to other parts of the device can be effectively prevented, the damage degree of the device is further reduced, the flame-retardant gas generated after flame retardance decomposition in the flame-retardant strip can be uniformly diffused by arranging the plurality of through holes on one side of the flame-retardant strip, and the device is conveniently filled with a combustion agent by unscrewing the replacing knob;
the lifting fireproof assembly comprises two lifting slide rails, a fireproof outer plate and a fireproof inner plate, the two lifting slide rails are vertically welded and fixed on the inner walls of the two sides of the slide groove respectively, the fireproof outer plate is in sliding fit between the two lifting slide rails, a sliding cavity is formed in the bottom of the fireproof outer plate, the fireproof inner plate is in sliding fit in the sliding cavity formed in the bottom of the fireproof outer plate, the fireproof outer plate and the fireproof inner plate are both of a titanium composite plate structure, the fireproof outer plate and the fireproof inner plate are both arranged into the titanium composite plate structure, the fireproof outer plate and the fireproof inner plate are matched with the door plate through the fireproof heat insulation and corrosion resistance characteristics of the fireproof outer plate and the fireproof inner plate structure, the device is provided with a double-layer fireproof heat insulation layer, the fireproof outer plate and the fireproof inner plate can be accommodated together when the fireproof inner plate is not used by arranging the fireproof inner plate inside the fireproof outer plate, and the occupation of the lifting fireproof assembly to the space is further reduced, reducing the installation and use conditions of the device.
Preferably, the both ends of fire prevention planking are all vertical to be fixed with the connecting strip, the top of two connecting strips all is connected with the cable wire, the one end that the connecting strip was kept away from to two cable wires is connected with jointly and pulls the knot, through the connecting strip, just cable wire and pull the lift of detaining the planking to fire prevention provide traction force, through the lift that uses this mode control fire prevention planking, not only the drive of relying on the device self installation alone, can avoid appearing the device and suffer the conflagration after the power unusual problem that leads to unable planking to promote fire prevention.
Preferably, all be fixed with the lift gyro wheel at fire prevention planking both ends, the lift gyro wheel at fire prevention planking both ends is fixed fit respectively on two lift slide rails, and the fire prevention planking passes through lift gyro wheel sliding fit between two lift slide rails, through setting up lift gyro wheel, makes the more smooth that fire prevention planking promoted.
Preferably, the sliding cavity both ends in fire prevention planking bottom all are fixed with down keeps off, and fire prevention inner panel both sides top all is fixed with the top and keeps off, and the bottom welding of fire prevention inner panel has the bottom plate, and the length of bottom plate is greater than the length of spout, keeps off and keep off down through setting up, makes fire prevention planking and fire prevention inner panel can not break away from after launching, through setting up the bottom plate, makes fire prevention inner panel bottom and division board bottom parallel and level, and then makes fire prevention planking and fire prevention inner panel can be sealed the door opening completely.
Preferably, the tops of the two lifting slide rails are fixed with pulley seats, the two pulley seats are matched with fixed pulleys in a rotating mode, the two steel cables are wound on the two fixed pulleys respectively, and the lifting assembly is pulled up by other traction equipment conveniently through the arrangement of the fixed pulleys.
Preferably, the drive assembly includes the mounting panel, drive wheel and connecting plate, the mounting panel is fixed at division board one side top, the both ends that division board one side was kept away from to the mounting panel all are fixed with the fixed plate, equal normal running fit has the drive wheel on two fixed plates, horizontal installation has the motor on one of them fixed plate, the one end of motor is connected with the drive wheel through the pivot, the normal running fit has the rope on two drive wheels, two connecting plates are connected respectively in the upper portion and the lower part of rope, and two connecting plates are located same height, two connecting plates respectively with the top fixed connection of two door plants, drive through the motor, make the drive wheel rotate, through rotating the drive wheel, make the rope transmit, rope two parts under the mountain drive two connecting plates respectively and do the reverse motion, through removing two connecting plates, open and shut of door plant is controlled.
Preferably, one side level that the division board was kept away from to the mounting panel is provided with double-deck slide, and two connecting plates are close to the equal normal running fit in one side of mounting panel and have two upper and lower front and back gyro wheels, and two upper and lower front and back gyro wheels are equallyd divide and are do not roll the cooperation on double-deck slide about two connecting plates, through gyro wheel around setting up, make connect the more level and smooth of removal, and then make opening and shutting of door plant more smooth and easy.
Preferably, the bottom level that the division board is close to door plant one side is fixed with the removal slide rail, and two equal sliding fit of door plant are on removing the slide rail.
Preferably, the channel has been seted up at the removal slide rail top, and the bottom of two door plants all is fixed with the slider, and slider sliding fit is in the channel, and two door plants are all through the slider and the removal slide rail sliding fit of bottom, through set up the slider in the door plant below to with slider sliding fit on removing the slide rail, make the door plant remove open with the more stable and smooth and easy of closing.
Preferably, the use method of the steel heat-insulation fireproof door device specifically comprises the following steps:
the method comprises the following steps: the heat-insulation fire door device is fixed at a passage through the partition plate, the lifting fire-proof component of the heat-insulation fire door device is installed in a hidden mode, when the heat-insulation fire door device is installed, a space for storing a fire-proof outer plate is reserved below the installed partition plate, the door plate is arranged at the door hole, the two door plates are driven to open and close through the driving component, and preliminary fire-proof heat insulation is performed by closing the two door plates;
step two: the steel cable is pulled by manpower or equipment, the steel cable drives the fireproof outer plate through the connecting strip to lift the fireproof outer plate and unfold the fireproof outer plate and the fireproof inner plate, when the fireproof outer plate and the fireproof inner plate are unfolded completely, the fireproof outer plate continues to move upwards, the fireproof outer plate drives the fireproof inner plate to move upwards until the fireproof outer plate and the fireproof inner plate completely seal the door hole in the partition plate, and in case of fire, the fire can be prevented from spreading inwards;
step three: through setting up fire-retardant strip, in case the conflagration breaks out, big fire burns fire-retardant strip, with the fire retardant heating decomposition in the fire-retardant strip, produces incombustible gas, stops going on of burning, reaches the function of putting out a fire even.
The invention has the beneficial effects that:
(1) the steel heat-insulation fireproof door device has the advantages that the door plates are matched at the door holes of the partition plates, the door plates are of a sandwich color steel plate structure filled with rock wool heat-insulation materials inside, so that the device achieves the functions of fire prevention and heat insulation, meanwhile, the opening and closing speed of the two door plates is higher than that of a single door by arranging the two door plates on the device, so that the two door plates can be conveniently and timely closed in case of fire, the using timeliness of the device is improved, meanwhile, the two door plates are controlled by the driving assembly, the opening and closing of the two door plates are more automatic, the using automation degree of the device is improved, meanwhile, the convenience of daily use of the device is improved by automatically opening and closing the door plates, meanwhile, people do not need to close the door plates in case of fire, and the contact between the people and the device is reduced, the protection personnel can not be burnt and scald to the security that the device used has been improved, simultaneously, control through drive assembly, do not need personnel on duty, just can close the door plant the very first time that the conflagration takes place, thereby make the device's use more reliable, through setting up the slider in the door plant below, and with slider sliding fit on moving slide rail, make the door plant remove open with the more stable and smooth and easy of closing, thereby further improve the reliability that the device used.
(2) The steel heat-insulation fireproof door device is characterized in that the fireproof outer plate and the fireproof inner plate are arranged, the fireproof outer plate and the fireproof inner plate are both arranged into a titanium composite plate structure, and are matched with the door plate through the fireproof heat-insulation and corrosion-resistant characteristics of the fireproof outer plate and the fireproof inner plate structure, so that the device has a double-layer fireproof heat-insulation layer, the fireproof heat-insulation effect of the device is better, meanwhile, the lifting fireproof assembly of the device is hidden below the fireproof outer plate and the fireproof inner plate through hidden installation, and the lifting fireproof assembly of the device is invisible when no fire occurs, so that the daily use of the device is not influenced, meanwhile, the device is simple in structure, the problems that the traditional heat-insulation fireproof door device is complicated and bulky in structure and troublesome in daily use are solved, the fireproof inner plate is arranged inside the fireproof outer plate, so that the fireproof outer plate and the fireproof inner plate can be stored together when the device is not used, and then reduce the occupation of lift fire prevention subassembly to the space, reduce the device condition of installing and using to improve the device scope of installing and using.
(3) The steel heat-insulation fireproof door device has the advantages that the flame-retardant strips are arranged, once a fire disaster happens, the fire-retardant strips are burnt by a big fire, flame retardants in the flame-retardant strips are heated and decomposed to generate non-combustible gas to prevent the combustion from going on, the gas generated by the decomposition of the flame retardants in the flame-retardant strips is used for preventing the combustion, so that the device has triple protection on heat insulation and fire prevention, the using safety level of the device is improved, meanwhile, the triple fire prevention of the device is different mainly in emphasis, the flame-retardant strips mainly have a fire extinguishing function, the lifting fireproof assembly mainly has a fire isolating function, the door plate mainly has a heat insulation function, the triple heat insulation and fire prevention are mutually matched, the fire protection level of the device is further improved, the fire extinguishing is realized by arranging the flame-retardant strips, the burning of the big fire to other parts of the device can be effectively prevented, and the damage degree of the device is further reduced, thereby prolong the life-span that the device used, through set up a plurality of through-holes in fire-retardant strip one side, make fire-retardant connecing the flame retardant gas after the decomposition in the fire-retardant strip can even diffusion come out to improve the effect of putting out a fire.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic diagram of a structure of the isolation board of the present invention.
FIG. 3 is a schematic view of the lifting fireproof assembly of the present invention.
FIG. 4 is a schematic view of a driving assembly according to the present invention.
Fig. 5 is an enlarged detail view of the area a in fig. 1.
FIG. 6 is a sectional view of an assembly structure of the fireproof outer plate and the fireproof inner plate according to the present invention.
In the figure: 1. a separator plate; 101. a door opening; 102. a chute; 103. replacing the knob; 2. a lifting fireproof assembly; 201. lifting the slide rail; 202. a pulley seat; 203. a fireproof outer plate; 2031. a slide chamber; 2032. shifting down; 2033. a fireproof inner plate; 2034. shifting up; 2035. a base plate; 204. lifting rollers; 205. a connecting strip; 206. a steel cord; 207. fixing the pulley; 208. a traction buckle; 3. a door panel; 301. a slider; 4. a drive assembly; 401. mounting a plate; 402. a driving wheel; 403. a rope; 404. a connecting plate; 405. a slideway; 406. front and rear rollers; 407. a fixing plate; 408. a motor; 5. moving the slide rail; 501. a channel; 6. a flame retardant strip; 601. and a through hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, the steel heat-insulation fire door device comprises a partition board 1, a lifting fire-protection component 2, door panels 3 and a driving component 4, wherein the partition board 1 is a thickened steel plate structure, a square door hole 101 is formed in the center of the partition board 1, two door panels 3 are arranged on one side of the partition board 1 at the square door hole 101, the two door panels 3 are symmetrically arranged, the two door panels 3 are all sandwich color steel plate structures filled with rock wool heat-insulation materials, the door panels 3 are used in cooperation with the door holes 101 of the partition board 1, the door panels 3 adopt sandwich color steel plate structures filled with rock wool heat-insulation materials, so that the device realizes the functions of fire protection and heat insulation, meanwhile, the opening and closing speeds of the two door panels 3 are higher than those of a single door by arranging the two door panels 3 on the device, and further, the two door panels 3 can be conveniently closed in time when a fire disaster occurs, therefore, the timeliness of the device is improved, the top of the isolation board 1 is downwards provided with the sliding groove 102, the sliding groove 102 is internally provided with the lifting fireproof component 2, the lifting fireproof component 2 of the device is hidden below the fireproof outer board 203 and the fireproof inner board 2033 through hidden installation, when a fire disaster does not happen, the lifting fireproof component 2 of the device is invisible and cannot influence the daily use of the device, meanwhile, the device has a simple structure, the problems that the traditional heat-insulation fireproof door device is complex and bloated in structure and troublesome in daily use are solved, the top of the isolation board 1 close to one side of the door boards 3 is horizontally fixed with the driving component 4, the driving component 4 drives the two door boards 3 to relatively move, the two door boards 3 are controlled through the driving component 4, the opening and closing of the two door boards 3 are more automatic, the automation degree of the device is improved, and meanwhile, the door plate 3 is automatically opened, closed and closed, so that the daily use convenience of the device is improved, meanwhile, when a fire disaster happens, people do not need to close the door plate 3, the contact between the people and the device is reduced, the people are protected from being burnt and scalded, and the use safety of the device is improved;
wherein, the two ends of the top of the isolation board 1 are both downwards provided with empty slots for filling fire retardants, the slot openings of the two empty slots for filling the group combustion engines are both matched with a replacing knob 103 in a threaded manner, the two ends of the isolation board 1 far away from one side of the door panel 3 are both vertically connected with fire retardant strips 6, the fire retardant strips 6 are of a hollow structure, the interiors of the fire retardant strips 6 are communicated with the empty slots for filling the group combustion engines of the isolation board 1, one sides of the two fire retardant strips 6 are equally spaced and provided with a plurality of through holes 601, once a fire disaster occurs, the fire retardant strips 6 are burned by a fire disaster, the fire retardants in the fire retardant strips 6 are heated and decomposed to generate non-combustible gas, the continuation of the combustion is prevented, the gas generated by the decomposition of the fire retardants in the fire retardant strips 6 is used for preventing the combustion, so that the device has triple protection on the heat insulation and fire protection, thereby improving the safety level of the use of the device, and simultaneously, the triple fire protection of the device, the main points are different, the flame-retardant strips 6 mainly have a fire extinguishing effect, the lifting fireproof assembly 2 mainly has a fire isolating effect, the door panel 3 mainly has a heat insulating effect, and the three heat-insulating fireproof components are mutually matched, so that the fire protection level of the device is further improved, the fire is extinguished by arranging the flame-retardant strips 6, the burning of fire to other parts of the device can be effectively prevented, the damage degree of the device is further reduced, the service life of the device is prolonged, the flame-retardant gas generated after the flame-retardant connection and decomposition in the flame-retardant strips 6 can be uniformly diffused by arranging the plurality of through holes 601 at one side of the flame-retardant strips 6, so that the fire extinguishing effect is improved, the device is conveniently filled with a combustion-forming agent by unscrewing the replacement knob 103, and the fire extinguishing function of the device can be used for multiple times;
the lifting fireproof assembly 2 comprises two lifting slide rails 201, a fireproof outer plate 203 and a fireproof inner plate 2033, wherein the two lifting slide rails 201 are vertically welded and fixed on the inner walls of the two sides of the chute 102 respectively, the fireproof outer plate 203 is in sliding fit between the two lifting slide rails 201, a sliding cavity 2031 is formed in the bottom of the fireproof outer plate 203, the fireproof inner plate 2033 is in sliding fit in the sliding cavity 2031 formed in the bottom of the fireproof outer plate 203, the fireproof outer plate 203 and the fireproof inner plate 2033 are both of a titanium composite plate structure, the fireproof outer plate 203 and the fireproof inner plate 2033 are both of the titanium composite plate structure, the fireproof outer plate 203 and the fireproof inner plate 2033 are matched with the door plate 3 to enable the device to have double fireproof heat insulation layers, so that the fireproof heat insulation effect of the device is better, the fireproof inner plate 2033 is arranged inside the fireproof outer plate 203, the fireproof outer plate 203 and the fireproof inner plate 2033 can be stored together when not in use, so that the occupation of the lifting fireproof assembly 2 on the space is reduced, the installation and use conditions of the device are reduced, and the installation and use range of the device is improved.
In an optional implementation manner of the embodiment of the invention, the connecting strips 205 are vertically fixed at both ends of the fireproof outer plate 203, the top parts of the two connecting strips 205 are connected with the steel cables 206, one ends of the two steel cables 206, which are far away from the connecting strips 205, are connected with the traction buckles 208 together, and the traction force is provided for the lifting of the fireproof outer plate 203 through the connecting strips 205, the steel cables 206 and the traction buckles 208.
In an optional implementation manner of the embodiment of the present invention, the two ends of the fireproof outer panel 203 are both fixed with the lifting rollers 204, the lifting rollers 204 at the two ends of the fireproof outer panel 203 are respectively and fixedly fitted on the two lifting slide rails 201, the fireproof outer panel 203 is slidably fitted between the two lifting slide rails 201 through the lifting rollers 204, and the lifting rollers 204 are arranged to enable the fireproof outer panel 203 to be lifted more smoothly.
In an optional implementation manner of the embodiment of the present invention, both ends of a sliding cavity 2031 at the bottom of the fire-proof outer plate 203 are fixed with a lower stop 2032, both tops of both sides of the fire-proof inner plate 2033 are fixed with upper stops 2034, the bottom of the fire-proof inner plate 2033 is welded with a bottom plate 2035, the length of the bottom plate 2035 is greater than the length of the sliding chute 102, the fire-proof outer plate 203 and the fire-proof inner plate 2033 are not separated after being unfolded by setting the lower stop 2032 and the upper stops 2034, and the bottom of the fire-proof inner plate 2033 is flush with the bottom of the isolation plate 1 by setting the bottom plate 2035, so that the door hole 101 can be completely sealed by the fire-proof outer plate 203 and the fire-proof inner plate 2033.
In an optional implementation manner of the embodiment of the present invention, the pulley bases 202 are fixed on the tops of the two lifting sliding rails 201, the fixed pulleys 207 are rotatably fitted on the two pulley bases 202, the two steel cables 206 are respectively wound on the two fixed pulleys 207, and the fixed pulleys 207 are provided to facilitate the lifting assembly 2 to be pulled up by other traction devices.
In an optional implementation manner of the embodiment of the present invention, the driving assembly 4 includes a mounting plate 401, transmission wheels 402 and connection plates 404, the mounting plate 401 is fixed on the top of one side of the isolation plate 1, fixing plates 407 are fixed on both ends of the mounting plate 401 away from one side of the isolation plate 1, the transmission wheels 402 are rotatably fitted on both the fixing plates 407, a motor 408 is horizontally mounted on one of the fixing plates 407, one end of the motor 408 is connected to the transmission wheel 402 through a rotating shaft, a rope 403 is rotatably fitted on both the transmission wheels 402, the two connection plates 404 are respectively connected to the upper portion and the lower portion of the rope 403, the two connection plates 404 are located at the same height, the two connection plates 404 are respectively fixedly connected to the tops of the two door panels 3, the transmission wheel 402 is rotated by driving the motor 408, the rope 403 is transmitted by rotating the transmission wheels 402, the two portions below the rope 403 respectively drive the two connection plates 404 to perform reverse movement, by moving the two connection plates 404, opening and closing of the door 3 are controlled.
In an optional implementation manner of the embodiment of the present invention, a double-layer slideway 405 is horizontally arranged on one side of the mounting plate 401 away from the partition plate 1, an upper front roller 406 and a lower front roller 406 are respectively matched with one side of each of the two connecting plates 404 close to the mounting plate 401 in a rotating manner, the upper front roller 406 and the lower front roller 406 of each of the two connecting plates 404 are respectively matched with the double-layer slideway 405 in a rolling manner, and the connecting handles 404 are moved more smoothly by arranging the front rollers 406 and the lower rollers 406, so that the opening and closing of the door panel 3 are smoother.
In an optional implementation manner of the embodiment of the present invention, a moving slide rail 501 is horizontally fixed at the bottom of the side of the isolation board 1 close to the door panels 3, and both the door panels 3 are slidably fitted on the moving slide rail 501.
In an optional implementation manner of the embodiment of the present invention, the top of the movable sliding rail 501 is provided with a channel 501, the bottoms of the two door panels 3 are both fixed with a slider 301, the slider 301 is slidably fitted in the channel 501, the two door panels 3 are both slidably fitted with the movable sliding rail 501 through the slider 301 at the bottom, and by arranging the slider 301 below the door panel 3 and slidably fitting the slider 301 on the movable sliding rail 5, the door panels 3 are more stably and smoothly opened and closed in a moving manner, so that the reliability of the use of the apparatus is further improved.
In an optional implementation manner of the embodiment of the present invention, the use method of the steel heat-insulation fire door device specifically includes the following steps:
the method comprises the following steps: the heat-insulation fire door device is fixed at a passage through the partition board 1, the lifting fire-proof component 2 of the heat-insulation fire door device is installed in a hidden mode, when the heat-insulation fire door device is installed, a space for storing the fire-proof outer board 203 is reserved below the installed partition board 1, the door boards 3 are arranged at the door holes 101, the two door boards 3 are driven to be opened, closed and driven through the driving component 4, and preliminary fire prevention and heat insulation are conducted by closing the two door boards 3;
step two: the steel cable 206 is pulled by manpower or equipment, the steel cable 206 drives the fireproof outer plate 203 through the connecting strip 205, the fireproof outer plate 203 is lifted, the fireproof outer plate 203 and the fireproof inner plate 2033 are unfolded, when the fireproof outer plate 203 and the fireproof inner plate 2033 are completely unfolded, the fireproof outer plate 203 continues to move upwards, the fireproof outer plate 203 drives the fireproof inner plate 2033 to move upwards until the fireproof outer plate 203 and the fireproof inner plate 2033 completely seal the door hole 101 on the partition plate 1, and when a fire breaks out, the fire can be prevented from spreading inwards;
step three: through setting up fire-retardant strip 6, in case the conflagration breaks out, big fire burns fire-retardant strip 6, heats the decomposition of the fire retardant of fire-retardant strip 6, produces incombustible gas, stops going on of burning, reaches the function of putting out a fire even.
When the device is used, firstly, the heat-insulation fire door device is fixed at a passage through the partition board 1, the lifting fire-proof component 2 of the heat-insulation fire door device is in hidden installation, when the heat-insulation fire door device is installed, a space for storing the fire-proof outer board 203 is reserved below the installed partition board 1, the door hole 101 is reserved in the middle of the partition board 1, personnel can conveniently enter and exit, the door board 3 is arranged at the door hole 101, the two door boards 3 are driven to open, close and close through the driving component 4, the fire-proof and heat-insulation are carried out through closing the two door boards 3, the door boards 3 are matched and used through the door hole 101 of the partition board 1, the door boards 3 adopt a sandwich color steel plate structure filled with rock wool heat-insulation materials inside, so that the device realizes the functions of fire-proof and heat-insulation, meanwhile, through arranging the two door boards 3 on the device, the opening, closing and closing speeds of the two door boards 3 are higher than that of a single-leaf door, so as to facilitate the timely closing of the two door panels 3 when a fire disaster occurs, thereby improving the timeliness of the use of the device, meanwhile, the two door panels 3 are controlled by the driving component 4, the opening and closing of the two door panels 3 are more automatic, thereby improving the automation degree of the use of the device, meanwhile, the convenience of the daily use of the device is improved by automatically opening and closing the door panels 3, meanwhile, when a fire disaster occurs, people do not need to close the door panels 3, the contact between the people and the device is reduced, the people can not be burnt and scalded, thereby improving the safety of the use of the device, meanwhile, the door panels 3 can be closed at the first time of the fire disaster without the need of the people to watch through the control of the driving component 4, thereby the use of the device is more reliable, the sliding block 301 is arranged below the door panels 3, and the sliding block 301 is matched on the movable sliding rail 5 in a sliding way, the door panel 3 is more stably and smoothly opened and closed by moving, thereby further improving the reliability of the device, then, the steel cable 206 is pulled by manpower or equipment, the steel cable 206 drives the fireproof outer panel 203 through the connecting strip 205, the fireproof outer panel 203 is lifted, the fireproof outer panel 203 and the fireproof inner panel 2033 are unfolded, when the fireproof outer panel 203 and the fireproof inner panel 2033 are completely unfolded, the fireproof outer panel 203 continues to move upwards, the fireproof inner panel 2033 is driven to move upwards by the fireproof outer panel 203 until the fireproof outer panel 203 and the fireproof inner panel 2033 completely seal the door hole 101 on the partition board 1, when in fire, the fire can be prevented from spreading inwards, by arranging the fireproof outer panel 203 and the fireproof inner panel 2033, and setting the fireproof outer panel 203 and the fireproof inner panel 2033 as a titanium composite board structure, by the fireproof heat insulation and corrosion resistance characteristics of the fireproof outer panel 203 and the fireproof inner panel 2033, the device is provided with a double-layer fireproof heat insulation layer, so that the fireproof heat insulation effect of the device is better, meanwhile, the lifting fireproof component 2 of the device is hidden below the fireproof outer plate 203 and the fireproof inner plate 2033 through hidden installation, when no fire occurs, the lifting fireproof component 2 of the device is invisible, the daily use of the device cannot be influenced, meanwhile, the device is simple in structure, the problems that the traditional heat insulation fireproof door device is complex and bloated in structure and troublesome in daily use are solved, the fireproof inner plate 2033 is arranged inside the fireproof outer plate 203, the fireproof outer plate 203 and the fireproof inner plate 2033 can be accommodated together when the device is not used, the occupation of the lifting fireproof component 2 to the space is further reduced, the installation and use conditions of the device are reduced, the installation and use range of the device is further improved, and finally, the flame retardant strip 6 is arranged, once a fire occurs, the conflagration is to fire-retardant strip 6, heat the fire retardant decomposition in fire-retardant strip 6, produce incombustible gas, prevent going on of burning, prevent burning through the gas that produces of fire retardant decomposition in fire-retardant strip 6, make the device have triple protection on thermal-insulated fire prevention, thereby the security level that the device used has been improved, simultaneously, the triple fire prevention of the device, the main emphasis is different, fire-retardant strip 6 mainly has the fire extinguishing action, lift fire prevention subassembly 2 mainly has the effect of keeping apart the fire, door plant 3 mainly has the thermal-insulated effect, through the mutual cooperation of triple thermal-insulated fire prevention, thereby further improve the fire-proof level of the device, put out a fire through setting up fire-retardant strip 6, can effectively prevent the firing of conflagration to other parts of the device, and then reduce the impaired degree of the device, thereby prolong the life-span of the device, through setting up a plurality of through-holes 601 in fire-retardant strip 6 one side, the flame-retardant gas after flame-retardant decomposition in the flame-retardant strip 6 can be uniformly diffused out, thereby improving the fire-extinguishing effect.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a steel fire door device that insulates against heat, includes division board (1), lift fire prevention subassembly (2), door plant (3) and drive assembly (4), its characterized in that: the partition board (1) is of a thickened steel plate structure, a square door hole (101) is formed in the center of the partition board (1), two door plates (3) are arranged on one side of the partition board (1) and located at the square door hole (101), the two door plates (3) are symmetrically arranged, the two door plates (3) are of a sandwich color steel plate structure filled with rock wool heat-insulating materials, a sliding groove (102) is formed in the top of the partition board (1) downwards, a lifting fireproof assembly (2) is arranged in the sliding groove (102), a driving assembly (4) is horizontally fixed on the top of one side, close to the door plates (3), of the partition board (1), and the driving assembly (4) drives the two door plates (3) to move relatively;
the fire-retardant door plate is characterized in that empty grooves filled with fire retardants are formed in two ends of the top of the isolation plate (1) downwards, replacement knobs (103) are matched with the groove openings of the empty grooves of the two filling group combustion engines in a threaded manner, fire-retardant strips (6) are vertically connected to two ends of one side, far away from the door plate (3), of the isolation plate (1), the fire-retardant strips (6) are of a hollow structure, the interiors of the fire-retardant strips (6) are connected and communicated with the empty grooves of the filling group combustion engines of the isolation plate (1), and a plurality of through holes (601) are formed in one side of each of the two fire-retardant strips (6) at equal intervals;
the lifting fireproof assembly (2) comprises two lifting slide rails (201), a fireproof outer plate (203) and a fireproof inner plate (2033), wherein the two lifting slide rails (201) are vertically welded and fixed on the inner walls of two sides of a sliding groove (102) respectively, the fireproof outer plate (203) is in sliding fit between the two lifting slide rails (201), a sliding cavity (2031) is formed in the bottom of the fireproof outer plate (203), the fireproof inner plate (2033) is in sliding fit in the sliding cavity (2031) formed in the bottom of the fireproof outer plate (203), and the fireproof outer plate (203) and the fireproof inner plate (2033) are both of a titanium composite plate structure.
2. A steel heat-insulating fire door apparatus as claimed in claim 1, wherein: the both ends of fire prevention planking (203) are all vertically fixed with connecting strip (205), and the top of two connecting strip (205) all is connected with cable wire (206), and the one end that connecting strip (205) were kept away from in two cable wire (206) is connected with jointly and pulls knot (208).
3. A steel heat-insulating fire door apparatus as claimed in claim 2, wherein: lifting rollers (204) are fixed at two ends of the fireproof outer plate (203), the lifting rollers (204) at two ends of the fireproof outer plate (203) are respectively and fixedly matched on the two lifting slide rails (201), and the fireproof outer plate (203) is in sliding fit between the two lifting slide rails (201) through the lifting rollers (204).
4. A steel heat-insulating fire door apparatus as claimed in claim 3, wherein: both ends of a sliding cavity (2031) at the bottom of the fireproof outer plate (203) are fixed with a lower baffle (2032), tops of both sides of the fireproof inner plate (2033) are fixed with an upper baffle (2034), a bottom plate (2035) is welded at the bottom of the fireproof inner plate (2033), and the length of the bottom plate (2035) is greater than that of the sliding chute (102).
5. A steel insulated fire door apparatus as claimed in claim 4, wherein: the tops of the two lifting sliding rails (201) are respectively fixed with a pulley seat (202), the two pulley seats (202) are respectively matched with a fixed pulley (207) in a rotating way, and the two steel cables (206) are respectively wound on the two fixed pulleys (207).
6. A steel heat-insulating fire door apparatus as claimed in claim 1, wherein: drive assembly (4) are including mounting panel (401), drive wheel (402) and connecting plate (404), mounting panel (401) are fixed at division board (1) one side top, the both ends that division board (1) one side was kept away from in mounting panel (401) all are fixed with fixed plate (407), equal normal running fit has drive wheel (402) on two fixed plates (407), horizontal installation has motor (408) on one of them fixed plate (407), the one end of motor (408) is passed through the pivot and is connected with drive wheel (402), normal running fit has rope (403) on two drive wheels (402), the upper portion and the lower part at rope (403) are connected respectively to two connecting plates (404), and two connecting plates (404) are located same height, two connecting plates (404) respectively with the top fixed connection of two door plant (3).
7. A steel thermal insulation fire door apparatus as claimed in claim 6, wherein: one side of the mounting plate (401) far away from the isolation plate (1) is horizontally provided with a double-layer slideway (405), one side of the two connecting plates (404) close to the mounting plate (401) is respectively in running fit with an upper front roller and a lower front roller (406), and the upper front roller and the lower front roller (406) of the two connecting plates (404) are respectively in running fit with the double-layer slideway (405).
8. A steel heat-insulating fire door apparatus as claimed in claim 1, wherein: the bottom of the isolating plate (1) close to one side of the door plates (3) is horizontally fixed with a movable sliding rail (501), and the two door plates (3) are in sliding fit on the movable sliding rail (501).
9. A steel heat-insulating fire door apparatus as claimed in claim 1, wherein: channel (501) have been seted up at removal slide rail (501) top, and the bottom of two door plant (3) all is fixed with slider (301), and slider (301) sliding fit is in channel (501), and slider (301) and removal slide rail (501) sliding fit through the bottom are all passed through in two door plant (3).
10. A steel heat-insulating fire door apparatus as claimed in claim 1, wherein: the use method of the steel heat-insulation fireproof door device specifically comprises the following steps:
the method comprises the following steps: the heat-insulation fire door device is fixed at a passage through the partition plate (1), the lifting fire-proof component (2) of the heat-insulation fire door device is installed in a hidden mode, when the heat-insulation fire door device is installed, a space for storing the fire-proof outer plate (203) is reserved below the installed partition plate (1), the door plate (3) is arranged at the door hole (101), the two door plates (3) are driven to open, close and close through the driving component (4), and preliminary fire prevention and heat insulation are performed by closing the two door plates (3);
step two: the steel cable (206) is pulled by manpower or equipment, the steel cable (206) drives the fireproof outer plate (203) through the connecting strip (205), the fireproof outer plate (203) is lifted, the fireproof outer plate (203) and the fireproof inner plate (2033) are unfolded, when the fireproof outer plate (203) and the fireproof inner plate (2033) are completely unfolded, the fireproof outer plate (203) continues to move upwards, the fireproof outer plate (203) drives the fireproof inner plate (2033) to move upwards until the fireproof outer plate (203) and the fireproof inner plate (2033) completely seal the door hole (101) on the partition plate (1), and when a fire happens, the fire can be prevented from spreading inwards;
step three: through setting up fire-retardant strip (6), in case the conflagration breaks out, big fire burns fire-retardant strip (6), heats the decomposition of the fire retardant in fire-retardant strip (6), produces incombustible gas, stops going on of burning, reaches the function of putting out a fire even.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111439617.XA CN114109216B (en) | 2021-11-30 | 2021-11-30 | Steel heat-insulation fireproof door device |
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| CN202111439617.XA CN114109216B (en) | 2021-11-30 | 2021-11-30 | Steel heat-insulation fireproof door device |
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| CN114109216A true CN114109216A (en) | 2022-03-01 |
| CN114109216B CN114109216B (en) | 2022-09-09 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001170196A (en) * | 1999-12-22 | 2001-06-26 | Hitachi Plant Eng & Constr Co Ltd | Divided panel style fire shutter |
| CN201609200U (en) * | 2010-02-26 | 2010-10-20 | 高华军 | Learning board |
| CN206581984U (en) * | 2017-02-06 | 2017-10-24 | 上海地空防护设备有限公司 | A kind of lift protective seal separates protective door |
| CN111411873A (en) * | 2020-05-23 | 2020-07-14 | 范捷 | Fire-proof door |
| CN112112533A (en) * | 2020-07-29 | 2020-12-22 | 北纬四五(深圳)技术有限公司 | Formula intelligence fire control baffle is inhaled to magnetism |
| CN112267805A (en) * | 2020-11-13 | 2021-01-26 | 江龙船艇科技股份有限公司 | Electric lift smoke-tight door |
| CN214303557U (en) * | 2020-10-20 | 2021-09-28 | 博威系统门窗（苏州）有限公司 | Aluminum alloy heat-insulating energy-saving fireproof window easy to maintain |
-
2021
- 2021-11-30 CN CN202111439617.XA patent/CN114109216B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001170196A (en) * | 1999-12-22 | 2001-06-26 | Hitachi Plant Eng & Constr Co Ltd | Divided panel style fire shutter |
| CN201609200U (en) * | 2010-02-26 | 2010-10-20 | 高华军 | Learning board |
| CN206581984U (en) * | 2017-02-06 | 2017-10-24 | 上海地空防护设备有限公司 | A kind of lift protective seal separates protective door |
| CN111411873A (en) * | 2020-05-23 | 2020-07-14 | 范捷 | Fire-proof door |
| CN112112533A (en) * | 2020-07-29 | 2020-12-22 | 北纬四五(深圳)技术有限公司 | Formula intelligence fire control baffle is inhaled to magnetism |
| CN214303557U (en) * | 2020-10-20 | 2021-09-28 | 博威系统门窗（苏州）有限公司 | Aluminum alloy heat-insulating energy-saving fireproof window easy to maintain |
| CN112267805A (en) * | 2020-11-13 | 2021-01-26 | 江龙船艇科技股份有限公司 | Electric lift smoke-tight door |
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|---|---|
| CN114109216B (en) | 2022-09-09 |
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