CN201386373Y - Negative-pressure smoke-leading fire-proofing building structure - Google Patents

Negative-pressure smoke-leading fire-proofing building structure Download PDF

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Publication number
CN201386373Y
CN201386373Y CN200920042094U CN200920042094U CN201386373Y CN 201386373 Y CN201386373 Y CN 201386373Y CN 200920042094 U CN200920042094 U CN 200920042094U CN 200920042094 U CN200920042094 U CN 200920042094U CN 201386373 Y CN201386373 Y CN 201386373Y
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CN
China
Prior art keywords
window
air inlet
smoke evacuation
inlet window
smoke
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CN200920042094U
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Chinese (zh)
Inventor
沈福昌
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沈福昌
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Publication of CN201386373Y publication Critical patent/CN201386373Y/en

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Abstract

The utility model discloses a negative-pressure smoke-leading fire-proofing building structure, comprising at least one vertical smoke exhaust channel in the building and horizontal smoke exhaust channels arranged in the space at the upper parts of all floors, the vertical smoke exhaust channel and the horizontal smoke exhaust channels are communicated in a flowing way, at least one natural wind inlet window and at least one smoke exhaust window are arranged in a wall body of each independent room on each floor, the natural wind inlet window is composed of an air inlet window opening, an air inlet window door which can close the air inlet window opening in an ordinary state and an air inlet window door starting mechanism which can automatically open the air inlet window opening when fire disaster happens, the smoke exhaust window is composed of a smoke exhaust window opening, a smoke exhaust window door which can close the a smoke exhaust window opening in an ordinary state and a smoke exhaust window starting mechanism which can automatically open the smoke exhaust window opening when fire disaster happens, the smoke exhaust window is communicated with the horizontal smoke exhaust channels in a flowing way. In the utility model, simple structure can effectively prevent smoke from spreading to adjacent rooms when the fire disaster happens in a certain room in the building, thereby preventing a large fire disaster from happening.

Description

Negative-pressure smoke-guiding fireproof building structure
Technical field
The utility model relates to a kind of anti-fire building structure, especially relates to a kind ofly carrying out the anti-fire building structure that negative pressure is drawn cigarette by vertical setting of types cigarette channel and the horizontally-arranged cigarette channel that is provided with in the building.
Background technology
Existing anti-fire building structure roughly has two kinds, and first kind for to be provided with escape way in building, and fire-fighting equipment is set on each floor deposits closet, and the fire extinguishing of preventing fires of spray facility is set in floor, room; But, actual conditions after the building breaking out of fire, after in case certain room of these building catches fire, the spray facility that is provided with in the room often catches fire opportunity owing to its smog or temperature pick up delay of response or the malfunctioning the best that delayed, and after in case flare forms big fire, spray often can't be put out a fire again, and big fire, dense smoke and pernicious gas from this catch fire room to around the diffusion, around making, thereby the room also catches fire in succession and causes bigger fire about the floor, and the Field Force is because the floor passage, stair passage and escape way are all full of smoke and be difficult to search out fire-fighting equipment and put out a fire, and because severe depletion of oxygen and suck pernicious gas and often suffocate and poison has deadly caused a large amount of personal injuries and property loss like this; In addition, to some domestic block, it is no any fire-fighting equipment and spray facility in floor passage and room, thus when a certain dwelling house family when catching fire breaking out of fire, its to around, the fire of dwelling house family initiation up and down will be rapider, it is bigger to endanger; Second kind is Chinese utility model patent, the patent No. is 200420040584.7, name is called the disclosed a kind of structure of air inducing smoke evacuation fire safety device, its both sides at the building middle corridor are provided with the vertical setting of types cigarette channel respectively, top at each floor passage is provided with the horizontally-arranged cigarette channel that the smoke evacuation door is installed, both sides vertical setting of types cigarette channel is connected with the horizontally-arranged cigarette channel, on the smoke evacuation door, the direct current magnetic padlock is installed, in the body of wall of building bottom, the natural wind air intake window is set, in addition, at the bigger public area of building construction thing individual layer space of planes, because of the space big, for strengthening exhaust smoke level, electronic air-introduced machine and burner are set respectively on the top of two vertical setting of types cigarette channels; The building of this structure are after breaking out of fire, detect by cigarette temperature probe and to send the signal of telecommunication behind the flue gas and give electric control gear, smoke evacuation door on the horizontally-arranged cigarette channel is opened, thereby make high-temperature flue gas in the floor according to the natural law principle that rises, after the smoke evacuation door enters horizontally-arranged cigarette channel and vertical setting of types cigarette channel, upwards enter in the atmosphere, when using air-introduced machine and burner in the vertical setting of types cigarette channel, smoke discharging effect is better; The anti-fire building of this structure, can play the effect that negative pressure is preferably drawn cigarette, but still have the deficiency of following several respects, on the one hand, because the smoke evacuation door is installed on the horizontally-arranged cigarette channel, thereby must be in flue gas enters the floor passage, and it is enough big to work as its concentration, be enough to make cigarette temperature probe to detect and electric control gear is triggered when the smoke evacuation door is opened and negative pressure to draw cigarette, and when in the building during breaking out of fire of a certain room, adjacent room also caught fire in succession around it at first caused often, then after the door in the room that respectively catches fire burns, flue gas just enters in the floor passage in a large number, at this moment the negative pressure in the building is drawn the effect of cigarette structure competence exertion, and this moment, room, many places in the same or contiguous floors burns, caused a large amount of losses, in addition, when door is that steel work is difficult to burn, when flue gas can not enter in the floor passage in a large number, electric control gear triggering smoke evacuation door is opened thereby cigarette temperature probe then can not detect flue gas, at this moment, negative pressure in the building is drawn the cigarette structure and just can not be played a role, and therefore, can result in greater loss; Have again, because the smoke evacuation door must just can be opened when electric control gear is connected the direct current magnetic padlock, and that electric control gear and direct solenoid are locked under the hot environment of scene of fire is more fragile or malfunctioning, therefore the smoke evacuation door often can not be opened, flue gas can not enter the horizontally-arranged cigarette channel, can not play a role thereby make negative pressure draw the cigarette structure; On the other hand, because the natural wind air intake window is arranged in the body of wall of building bottom, thereby when a certain in the building or the breaking out of fire of some rooms, it is often far away or be subjected to stopping layer by layer and can not in time introduce fresh air from the outside because of distance, reduce the scene of fire temperature, improve air quality, thereby its result of use is also unsatisfactory.
The utility model content
The technical problems to be solved in the utility model provides a kind of negative-pressure smoke-guiding fireproof building structure, it can be with simple structure, and the room that prevents certain breaking out of fire in the building effectively adjacent rooms towards periphery, thereby fire is controlled in the minimum zone, prevent the more generation of conflagration.
For solving the problems of the technologies described above, the utility model adopts so a kind of negative-pressure smoke-guiding fireproof building structure, the horizontally-arranged cigarette channel that it comprises at least one the vertical setting of types cigarette channel that is arranged in these building and is arranged on each floor upper space of these building, described vertical setting of types cigarette channel and horizontally-arranged cigarette channel fluid ground are communicated with, also be provided with at least one natural wind air intake window and at least one flue gas discharge window in the body of wall in described building between each independent housing of each floor, the air inlet window opening mechanism that this natural wind air intake window can seal the air inlet window of this air inlet window by the air inlet window with when the normality and can open this air inlet window during in breaking out of fire is automatically formed, the smoke evacuation window opening mechanism that described flue gas is discharged that window can seal the smoke evacuation window of this smoke evacuation window by the smoke evacuation window with when the normality and can be opened this smoke evacuation window during in breaking out of fire is automatically formed, and described flue gas discharge window is communicated with described horizontally-arranged cigarette channel fluid ground.
Described air inlet window opening mechanism can be made of air inlet window balancing weight and hot melt adhesive, described air inlet window balancing weight is fixedly connected on the upper end of described air inlet window, the bottom-hinged of the lower end of described air inlet window and described air inlet window, described air intake window door is tightly connected by described hot melt adhesive and air inlet window.After adopting such structure, because the melting range of hot melt adhesive is lower, and when breaking out of fire, interior temperature can reach hundreds of degree, even degree more than 1000, the fusion temperature that is higher than hot melt adhesive far away, therefore hot melt adhesive at first melts when fire takes place, and the air inlet window is overturn around the bottom of air inlet window under the action of gravity of air inlet window balancing weight, discharges window thereby open flue gas, the opening mechanism of this structure was both simple, and reliable.
Described air inlet window opening mechanism also can be made of extension spring and hot melt adhesive, fixedly connected with the bottom of the upper end of described air inlet window and described air inlet window respectively in the two ends of described extension spring and it is in extended state, the bottom-hinged of the lower end of described air inlet window and described air inlet window, described air intake window door is tightly connected by described hot melt adhesive and air inlet window.After adopting such structure, because hot melt adhesive at first melts when fire takes place, the air inlet window overturns around the bottom of air inlet window under the retraction force effect of extension spring like this, discharges window thereby open flue gas, and the opening mechanism of this structure is also simple, reliable.
Described air inlet window opening mechanism also can be made of hot melt adhesive, the upper end of described air inlet window tilts to the inboard or the outside of air inlet window, the bottom-hinged of its lower end and described air inlet window, described air intake window door is tightly connected by described hot melt adhesive and air inlet window.After adopting such structure, because hot melt adhesive at first melts when fire takes place, be obliquely installed to the inboard or the outside of air inlet window owing to the air inlet window again, thereby the air inlet window overturns around the bottom of air inlet window under the action of gravity of self, thereby open flue gas and discharge window, the opening mechanism of this structure is simpler, reliable.
Described smoke evacuation window opening mechanism can be made of smoke evacuation window balancing weight and hot melt adhesive, described smoke evacuation window balancing weight is fixedly connected on the upper end of described smoke evacuation window, the bottom-hinged of the lower end of described smoke evacuation window and described smoke evacuation window, described vent window door is tightly connected by described hot melt adhesive and smoke evacuation window.This smoke evacuation window opening mechanism, it is simple in structure and reliable.
Described smoke evacuation window opening mechanism also can be made of extension spring and hot melt adhesive, fixedly connected with the bottom of the upper end of described smoke evacuation window and described smoke evacuation window respectively in the two ends of described extension spring and it is in extended state, the bottom-hinged of the lower end of described smoke evacuation window and described smoke evacuation window, described smoke evacuation window are crossed described hot melt adhesive and are tightly connected with the smoke evacuation window.This smoke evacuation window opening mechanism, its structure is also more simple and reliable.
After adopting such structure, owing to be provided with at least one natural wind air intake window and at least one flue gas discharge window in the body of wall in building between each independent housing of each floor, flue gas is discharged window and is communicated with described horizontally-arranged cigarette channel fluid ground, in case thereby during the careless breaking out of fire in certain room, air inlet window and smoke evacuation window can in time be opened by air inlet window opening mechanism and smoke evacuation window opening mechanism respectively immediately, make high temperature pyrotechnics after flue gas discharge window enters horizontally-arranged cigarette channel and vertical setting of types cigarette channel, upwards enter in the atmosphere owing to suction function, meanwhile, the natural wind air intake window is constantly introduced outdoor colder fresh air indoor, reduce the temperature of scene of fire, improve indoor environment; This shows, when in the building during the careless breaking out of fire in certain room, the high temperature pyrotechnics of indoor generation can in time be discharged window by flue gas and be drained in the outer atmosphere of building, simultaneously, there have outdoor colder fresh air to introduce again to be indoor, reduces the temperature of scene of fire, makes fire adjacent rooms towards periphery, thereby fire is controlled in this room, has prevented the more generation of conflagration effectively.
As a kind of improvement of the present utility model, in discharging window, described flue gas also is provided with an air-introduced machine, and the trigger switch of this air-introduced machine is fixedlyed connected with an end of a stay cord, and the other end of stay cord is fixedly connected on the described smoke evacuation window.After adopting such structure, when the upset of breaking out of fire smoke evacuation window, thereby air-introduced machine is started, can by force high-temperature flue gas be introduced flue gas by this air-introduced machine and discharge window by stay cord pulling trigger switch, and finally drain in the atmosphere, thereby this structure draw the cigarette better effects if.
As further improvement of the utility model, the melting range of described hot melt adhesive is 55~100 ℃, is in paraffin, rosin, ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot stick or the polyurethane hot melt adhesives any.Because paraffin begins fusing about 58 ℃, the melting range of ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot stick or polyurethane hot melt adhesives is 65~100 ℃, thereby it can melt dependable performance and with low cost rapidly when fire takes place.
As another kind of improvement the of the present utility model, described vertical setting of types cigarette channel has two, is separately positioned on the both sides of building safety passage.Adopt such structure, do not influence on the one hand the usage space of building, what this on the other hand structure also was convenient to building both lateral sides room draws the cigarette smoke evacuation.
As another improvement of the present utility model, described vertical setting of types cigarette channel has four, two both sides that are separately positioned on the building safety passage wherein, and two are separately positioned on the building lateral outer side in addition.Adopt such structure, draw the better effects if of cigarette smoke evacuation.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is the partial schematic sectional view of a kind of embodiment of the utility model negative-pressure smoke-guiding fireproof building structure.
Fig. 2 is the enlarged diagram at I place shown in Fig. 1.
Fig. 3 is along the cross-sectional schematic of a kind of embodiment of A-A line among Fig. 1.
Fig. 4 is along the cross-sectional schematic of the another kind of embodiment of A-A line among Fig. 1.
Fig. 5 is along the cross-sectional schematic of another embodiment of A-A line among Fig. 1.
Fig. 6 is the enlarged diagram at II place shown in Fig. 1.
The specific embodiment
Referring to Fig. 1 to a kind of negative-pressure smoke-guiding fireproof building structure shown in Figure 6, it comprises at least one vertical setting of types cigarette channel 1 that is arranged in these building and the horizontally-arranged cigarette channel 2 that is arranged on each floor upper space of these building, described vertical setting of types cigarette channel 1 and horizontally-arranged cigarette channel 2 fluid ground are communicated with, in described building, also be provided with at least one natural wind air intake window 4 and at least one flue gas between each independent housing of each floor in 3 the body of wall 3-1 and discharge window 5, natural wind air intake window 4 shown in Fig. 1 and flue gas are discharged window 5 and respectively are two, certainly, natural wind air intake window 4 and flue gas are discharged window 5 can be provided with three according to the size in room 3, four even more a plurality of, the air inlet window opening mechanism that this natural wind air intake window 4 can seal the air inlet window 4-2 of this air inlet window 4-1 by air inlet window 4-1 with when the normality and can open this air inlet window 4-1 during in breaking out of fire is automatically formed, the smoke evacuation window opening mechanism that described flue gas is discharged that window 5 can seal the smoke evacuation window 5-2 of this smoke evacuation window 5-1 by smoke evacuation window 5-1 with when the normality and can be opened this smoke evacuation window 5-1 during in breaking out of fire is automatically formed, and described flue gas discharge window 5 is communicated with described horizontally-arranged cigarette channel 2 fluid ground.
When the careless breaking out of fire in room 3, for drawing cigarette more quickly and effectively, can in described flue gas is discharged window 5, an air-introduced machine 6 be set, as shown in Figure 1, the trigger switch of this air-introduced machine 6 is fixedlyed connected with an end of a stay cord 7, and the other end of stay cord 7 is fixedly connected on the described smoke evacuation window 5-2.Like this, when upset took place smoke evacuation window 5-2, the trigger switch of stay cord 7 pulling air-introduced machines 6 made air-introduced machine connection power work draw cigarette.This air-introduced machine 6 can adopt known dc source to drive, and also can adopt AC power or ac-dc dual power supply to drive certainly.This air-introduced machine 6 can adopt plastics etc. can burn material to constitute, like this, when its at the fire early period of origination, finish smoothly because of flue-gas temperature is not high initial draw cigarette work after, burnt by more and more higher pyrotechnics immediately, thereby it is more unimpeded to make flue gas discharge window.
Referring to Fig. 2,3, described air inlet window opening mechanism can be made of air inlet window balancing weight 8 and hot melt adhesive 9, described air inlet window balancing weight 8 is fixedly connected on the upper end of described air inlet window 4-2, the bottom-hinged of the lower end of described air inlet window 4-2 and described air inlet window 4-1, described air inlet window 4-2 is tightly connected with air inlet window 4-1 by described hot melt adhesive 9.
Referring to Fig. 4, described air inlet window opening mechanism also can be made of extension spring 10 and hot melt adhesive 9, fixedly connected with the bottom of the upper end of described air inlet window 4-2 and described air inlet window 4-1 respectively in the two ends of described extension spring 10 and it is in extended state, the bottom-hinged of the lower end of described air inlet window 4-2 and described air inlet window 4-1, described air inlet window 4-2 is tightly connected with air inlet window 4-1 by described hot melt adhesive 9.
Referring to Fig. 5, described air inlet window opening mechanism also can be made of hot melt adhesive 9, the upper end of described air inlet window 4-2 tilts to the inboard or the outside of air inlet window 4-1, be inclination to the inside shown in the figure, the bottom-hinged of its lower end and described air inlet window 4-1, described air inlet window 4-2 is tightly connected with air inlet window 4-1 by described hot melt adhesive 9.Like this, when the careless breaking out of fire in room 3 because hot melt adhesive at first melts when fire takes place, thus the air inlet window under the action of gravity of self around the bottom of air inlet window inwardly or outwards overturn, thereby open flue gas discharge window.Certainly, air inlet window opening mechanism also can adopt other known configurations.
Referring to Fig. 1,6, described smoke evacuation window opening mechanism can be made of smoke evacuation window balancing weight 11 and hot melt adhesive 9, described smoke evacuation window balancing weight 11 is fixedly connected on the upper end of described smoke evacuation window 5-2, the bottom-hinged of the lower end of described smoke evacuation window 5-2 and described smoke evacuation window 5-1, described smoke evacuation window 5-2 is tightly connected with smoke evacuation window 5-1 by described hot melt adhesive 9.
Described smoke evacuation window opening mechanism also can be made of extension spring and hot melt adhesive 9, fixedly connected with the bottom of the upper end of described smoke evacuation window 5-2 and described smoke evacuation window 5-1 respectively in the two ends of described extension spring and it is in extended state, the bottom-hinged of the lower end of described smoke evacuation window 5-2 and described smoke evacuation window 5-1, described smoke evacuation window 5-2 is tightly connected with smoke evacuation window 5-1 by described hot melt adhesive 9; Not shown in the figures, can consult air inlet window opening mechanism shown in Figure 4.Smoke evacuation window opening mechanism also can be made of hot melt adhesive 9, the upper end of described smoke evacuation window 5-2 tilts to the inboard or the outside of smoke evacuation window 5-1, the bottom-hinged of its lower end and described smoke evacuation window 5-1, described smoke evacuation window 5-2 is tightly connected with smoke evacuation window 5-1 by described hot melt adhesive 9; Not shown in the figures, can consult Fig. 5, certainly, smoke evacuation window opening mechanism also can adopt other known configurations.
The melting range of described hot melt adhesive is 55~100 ℃, is preferably in paraffin, rosin, pitch, ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot stick, polyurethane hot melt adhesives or the polyester hot melting bonding adhesive any.The utility model is best with paraffin.Because paraffin begins fusing about 58 ℃, the melting range of ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot stick, polyurethane hot melt adhesives or polyester hot melting bonding adhesive is 65~100 ℃, thereby it can melt dependable performance and with low cost rapidly when fire takes place.
Vertical setting of types cigarette channel 1 of the present utility model can be two, is separately positioned on the both sides of building safety passage, as shown in Figure 1.
Vertical setting of types cigarette channel 1 of the present utility model also can be set to four, two both sides that are separately positioned on the building safety passage wherein, and two are separately positioned on the building lateral outer side in addition, not shown in the figures.
When between certain independent housing of the utility model building during 3 careless breaking out of fires, because the temperature of indoor pyrotechnics is higher than the fusion temperature of hot melt adhesive, hot melt adhesive of the present utility model is best with paraffin, like this, paraffin at first melts, thereby air inlet window 4-2 moves into transom window mouth 4-1 under the active force of air inlet window balancing weight 8 or extension spring 10 or self gravitation bottom overturns, and air inlet window 4-1 is opened; Equally, smoke evacuation window 5-2 overturns around the bottom of smoke evacuation window 5-1 under the active force of smoke evacuation window balancing weight 11 or extension spring or self gravitation, smoke evacuation window 5-1 is opened, like this, after indoor high temperature pyrotechnics enters horizontally-arranged cigarette channel 2 and vertical setting of types cigarette channel 1 by smoke evacuation window 5-1, drain in the outer atmosphere of building, when in flue gas is discharged window 5, air-introduced machine 6 being set, draw the cigarette better effects if, meanwhile, the natural wind air intake window is constantly introduced outdoor colder fresh air indoor, reduce the temperature of scene of fire, improve indoor environment, make indoor pyrotechnics adjacent rooms towards periphery, thereby fire is controlled in this room, has prevented the more generation of conflagration effectively.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle; can also make some distortion and improvement, these also should be considered as belonging to protection domain of the present utility model.

Claims (10)

1, a kind of negative-pressure smoke-guiding fireproof building structure, comprise at least one vertical setting of types cigarette channel (1) that is arranged in these building and the horizontally-arranged cigarette channel (2) that is arranged on each floor upper space of these building, described vertical setting of types cigarette channel (1) and horizontally-arranged cigarette channel (2) fluid ground are communicated with, it is characterized in that: in described building, also be provided with at least one natural wind air intake window (4) and at least one flue gas between each independent housing of each floor in the body of wall (3-1) of (3) and discharge window (5), the air inlet window opening mechanism that this natural wind air intake window (4) can seal the air inlet window (4-2) of this air inlet window (4-1) by air inlet window (4-1) with when the normality and can open this air inlet window (4-1) during in breaking out of fire is automatically formed, the smoke evacuation window opening mechanism that described flue gas is discharged that window (5) can seal the smoke evacuation window (5-2) of this smoke evacuation window (5-1) by smoke evacuation window (5-1) with when the normality and can be opened this smoke evacuation window (5-1) during in breaking out of fire is automatically formed, and described flue gas discharge window (5) is communicated with described horizontally-arranged cigarette channel (2) fluid ground.
2, negative-pressure smoke-guiding fireproof building structure according to claim 1, it is characterized in that: described air inlet window opening mechanism is made of air inlet window balancing weight (8) and hot melt adhesive (9), described air inlet window balancing weight (8) is fixedly connected on the upper end of described air inlet window (4-2), the bottom-hinged of the lower end of described air inlet window (4-2) and described air inlet window (4-1), described air inlet window (4-2) is tightly connected by described hot melt adhesive (9) and air inlet window (4-1).
3, negative-pressure smoke-guiding fireproof building structure according to claim 1, it is characterized in that: described air inlet window opening mechanism is made of extension spring (10) and hot melt adhesive (9), fixedly connected with the bottom of the upper end of described air inlet window (4-2) and described air inlet window (4-1) respectively in the two ends of described extension spring (10) and it is in extended state, the bottom-hinged of the lower end of described air inlet window (4-2) and described air inlet window (4-1), described air inlet window (4-2) is tightly connected by described hot melt adhesive (9) and air inlet window (4-1).
4, negative-pressure smoke-guiding fireproof building structure according to claim 1, it is characterized in that: described air inlet window opening mechanism is made of hot melt adhesive (9), the upper end of described air inlet window (4-2) tilts to the inboard or the outside of air inlet window (4-1), the bottom-hinged of its lower end and described air inlet window (4-1), described air inlet window (4-2) is tightly connected by described hot melt adhesive (9) and air inlet window (4-1).
5, negative-pressure smoke-guiding fireproof building structure according to claim 1, it is characterized in that: described smoke evacuation window opening mechanism is made of smoke evacuation window balancing weight (11) and hot melt adhesive (9), described smoke evacuation window balancing weight (11) is fixedly connected on the upper end of described smoke evacuation window (5-2), the bottom-hinged of the lower end of described smoke evacuation window (5-2) and described smoke evacuation window (5-1), described smoke evacuation window (5-2) is tightly connected by described hot melt adhesive (9) and smoke evacuation window (5-1).
6, negative-pressure smoke-guiding fireproof building structure according to claim 1, it is characterized in that: described smoke evacuation window opening mechanism is made of extension spring and hot melt adhesive (9), fixedly connected with the bottom of the upper end of described smoke evacuation window (5-2) and described smoke evacuation window (5-1) respectively in the two ends of described extension spring and it is in extended state, the bottom-hinged of the lower end of described smoke evacuation window (5-2) and described smoke evacuation window (5-1), described smoke evacuation window (5-2) is tightly connected by described hot melt adhesive (9) and smoke evacuation window (5-1).
7, according to each described negative-pressure smoke-guiding fireproof building structure in the claim 1 to 6, it is characterized in that: in described flue gas is discharged window (5), also be provided with an air-introduced machine (6), the trigger switch of this air-introduced machine (6) is fixedlyed connected with an end of a stay cord (7), and the other end of stay cord (7) is fixedly connected on the described smoke evacuation window (5-2).
8, according to each described negative-pressure smoke-guiding fireproof building structure in the claim 2 to 6, it is characterized in that: the melting range of described hot melt adhesive (9) is 55~100 ℃, is in paraffin, rosin, ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot stick or the polyurethane hot melt adhesives any.
9, according to each described negative-pressure smoke-guiding fireproof building structure in the claim 1 to 6, it is characterized in that: described vertical setting of types cigarette channel (1) has two, is separately positioned on the both sides of building safety passage.
10, according to each described negative-pressure smoke-guiding fireproof building structure in the claim 1 to 6, it is characterized in that: described vertical setting of types cigarette channel (1) has four, two both sides that are separately positioned on the building safety passage wherein, two are separately positioned on the building lateral outer side in addition.
CN200920042094U 2009-04-07 2009-04-07 Negative-pressure smoke-leading fire-proofing building structure CN201386373Y (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010115341A1 (en) * 2009-04-07 2010-10-14 Shen Fuchang Negative-pressure smoke-guiding fireproof building structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010115341A1 (en) * 2009-04-07 2010-10-14 Shen Fuchang Negative-pressure smoke-guiding fireproof building structure
US8986088B2 (en) 2009-04-07 2015-03-24 Fuchang Shen Negative-pressure smoke-guiding fireproof building structure

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