CN215290880U - Fireproof glass curtain wall - Google Patents
Fireproof glass curtain wall Download PDFInfo
- Publication number
- CN215290880U CN215290880U CN202120733105.3U CN202120733105U CN215290880U CN 215290880 U CN215290880 U CN 215290880U CN 202120733105 U CN202120733105 U CN 202120733105U CN 215290880 U CN215290880 U CN 215290880U
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- CN
- China
- Prior art keywords
- curtain wall
- glass
- glass curtain
- fire
- toughened glass
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000011521 glass Substances 0.000 title claims abstract description 115
- 239000005341 toughened glass Substances 0.000 claims abstract description 80
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 16
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000002274 desiccant Substances 0.000 claims description 4
- 239000002313 adhesive film Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims 2
- 230000002265 prevention Effects 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005187 foaming Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-NJFSPNSNSA-N silicon-30 atom Chemical compound [30Si] XUIMIQQOPSSXEZ-NJFSPNSNSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000005340 laminated glass Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Load-Bearing And Curtain Walls (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The utility model relates to a glass curtain wall technical field especially relates to a fire prevention glass curtain wall. Fire prevention glass curtain wall includes: a vertical keel; the first glass curtain wall and the second glass curtain wall are spliced along the wall surface direction and comprise first toughened glass, second toughened glass and third toughened glass which are sequentially arranged from inside to outside, a gap is formed between the first toughened glass and the second toughened glass to form a filling layer, fireproof silicon is filled in the filling layer, and a gap is formed between the second toughened glass and the third toughened glass to form an inflatable layer; and the connecting assembly is used for connecting and fixing the first glass curtain wall and the second glass curtain wall. Through filling fire prevention silicon between first toughened glass and second toughened glass, when the conflagration takes place, the intraformational fire prevention silicon of packing begins the foaming inflation, absorbs the high heat that the flame burning brought, forms opaque fire prevention offset plate, both can completely cut off the propagation of flame, smog and toxic gas effectively, can absorb the heat that the flame burning brought again, plays the effect of cooling.
Description
Technical Field
The utility model relates to a glass curtain wall technical field especially relates to a fire prevention glass curtain wall.
Background
The glass curtain wall is a modern new type wall body, and the greatest characteristic of the glass curtain wall endows the building with the advantages of organically unifying factors such as building aesthetics, building functions, building energy conservation, building structures and the like, and the building presents different tones from different angles, gives dynamic beauty to people along with the change of sunlight, moonlight and lamplight, and is widely applied to modern buildings. The fireproof glass curtain wall is taken as one of a plurality of glass curtain wall materials, has certain functions of glass made of other materials, and has the special functions of fire retarding, extending and heat insulation, and is gradually favored by the market.
However, the glass curtain wall in the prior art has poor fireproof performance, and when a fire disaster occurs, the spread of the fire can not be effectively blocked, so that the escape time is shortened, the life safety of people is harmed, and the use requirement of a building structure can not be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire prevention glass curtain wall can solve the not good problem of conventional fire prevention glass curtain wall fire behavior, improves fire prevention glass curtain wall's security performance.
In order to achieve the above object, the utility model provides a fire prevention glass curtain wall, include:
a vertical keel;
the first glass curtain wall and the second glass curtain wall are spliced along the wall surface direction, the first glass curtain wall and the second glass curtain wall are erected on the vertical keel and respectively comprise first toughened glass, second toughened glass and third toughened glass which are sequentially arranged from inside to outside, a gap is formed between the first toughened glass and the second toughened glass to form a filling layer, the filling layer is filled with fireproof silicon, and a gap is formed between the second toughened glass and the third toughened glass to form an inflatable layer;
and the connecting assembly is used for connecting and fixing the first glass curtain wall and the second glass curtain wall.
Optionally, the first glass curtain wall reaches the second glass curtain wall still includes fourth toughened glass, fourth toughened glass is located third toughened glass's the outside, just third toughened glass with be provided with a PVB rete between the fourth toughened glass.
Optionally, a Low-E film covers a surface of one side of the third tempered glass, which is away from the fourth tempered glass.
Optionally, the thickness of the filling layer is not less than 10 mm.
Optionally, the gas-filled layer is filled with argon gas.
Optionally, the aerated layer further contains a desiccant.
Optionally, coupling assembling includes clamp plate, vice frame and fastener, the clamp plate reaches vice frame is located respectively the inboard and the outside of first glass curtain wall, just vice frame with vertical fossil fragments fixed connection, the both ends of clamp plate reach the both ends of vice frame respectively with first glass curtain wall reaches second glass curtain wall contact, first glass curtain wall with installation clearance has between the second glass curtain wall, the fastener runs through in proper order from outside to inside the clamp plate installation clearance reaches vice frame.
Optionally, a sealant is arranged between the pressing plate and the auxiliary frame and between the first glass curtain wall and the second glass curtain wall.
Optionally, the fireproof glass curtain wall further comprises an aluminum alloy decorative cover plate, and the aluminum alloy decorative cover plate is buckled on the pressing plate.
Optionally, be provided with a bellying on two relative lateral walls of aluminum alloy decorative cover board respectively, toward bending type outward and forming a joint portion on two relative lateral walls of clamp plate, the bellying is located the inboard of joint portion, and two interval between the joint portion is greater than two the interval of bellying, the bellying with the lateral wall butt of clamp plate, joint portion with the lateral wall butt of aluminum alloy decorative cover board.
The utility model provides an among the fire prevention glass curtain wall, following beneficial effect has:
1) the toughened glass is used as a basic material of the first glass curtain wall and the second glass curtain wall, has the advantages of high strength, good thermal stability and the like, and when the toughened glass is damaged by external force, fragments can be formed into honeycomb-like small particles, so that the fragments are not easy to cause serious injury to human bodies;
2) by filling the fireproof silicon between the first toughened glass and the second toughened glass, when a fire disaster occurs, the fireproof silicon in the filling layer starts to foam and expand (the foaming expansion multiple is as high as 10 times), so that high heat caused by flame combustion is absorbed, and an opaque fireproof rubber plate is formed, has strong hardness, can effectively isolate the propagation of flame, smoke and toxic gas, can absorb the heat caused by flame combustion, and plays a role in cooling;
3) have the clearance in order to form the gas layer between second toughened glass and the third toughened glass, can effectual separation thermal transmission, delay stretching of the intensity of a fire, the energy saving to compare the ordinary glass of same thickness, can also improve the security performance of fire prevention glass curtain wall.
Drawings
It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention. Wherein:
FIG. 1 is a schematic structural view of a fire-proof glass curtain wall according to an embodiment of the present invention;
fig. 2 is a partial enlarged view of the fire-proof glass curtain wall provided by the embodiment of the present invention;
wherein the reference numerals are:
10-vertical keel; 21-first tempered glass; 22-second tempered glass; 23-second tempered glass; 24-fourth tempered glass; 30-fireproof silicon; 40-an aerated layer; 41-a desiccant; 50-PVB adhesive film layer; 60-pressing a plate; 61-sealing glue; 62-a clamping part; 70-subframe; 80-a fastener; a 90-aluminum alloy decorative cover plate; 91-raised portion.
Detailed Description
To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently. It should be further understood that the terms "first," "second," "third," and the like in the description are used for distinguishing between various components, elements, steps, and the like, and are not intended to imply a logical or sequential relationship between various components, elements, steps, or the like, unless otherwise indicated or indicated.
As shown in fig. 1, fig. 1 is the utility model provides a fire prevention glass curtain wall's schematic structure view, this embodiment provide a fire prevention glass curtain wall, fire prevention glass curtain wall includes:
a vertical keel 10;
the first glass curtain wall and the second glass curtain wall are spliced along the wall surface direction, the first glass curtain wall and the second glass curtain wall are erected on the vertical keel 10 and respectively comprise first toughened glass 21, second toughened glass 22 and third toughened glass 23 which are sequentially arranged from inside to outside, a gap is formed between the first toughened glass 21 and the second toughened glass 22 to form a filling layer, the filling layer is filled with fireproof silicon, and a gap is formed between the second toughened glass 22 and the third toughened glass 23 to form an inflatable layer 40;
and the connecting assembly is used for connecting and fixing the first glass curtain wall and the second glass curtain wall.
It should be understood that references to "inner", "outer", "inside" and "outside" in this application are defined in terms of the building structure, "inner" and "inside" refer to the side adjacent to the interior of the building, and "outer" and "outside" refer to the side adjacent to the exterior of the building.
Specifically, in this embodiment, the first glass curtain wall and the second glass curtain wall are type a fire-proof glass, and are fire-proof glass that satisfies the requirements of fire-resistant integrity and fire-resistant heat-insulating property, and have the advantages of light transmission, fire resistance (smoke isolation, fire isolation, and shielding of heat radiation), sound insulation, strong impact resistance, and the like. This embodiment adopts toughened glass as first glass curtain wall reaches the base material of second glass curtain wall, toughened glass intensity is high, advantage such as thermal stability is good, receives the destruction of external force when, and the piece can become similar honeycomb tiny particle and is difficult for causing serious injury to the human body.
Through first toughened glass 21 with it has fire prevention silicon 30 to fill between the second toughened glass 22, when the conflagration takes place, the intraformational fire prevention silicon 30 of packing begins the foaming inflation (the foaming inflation multiple is up to 10 times), absorbs the produced high heat of flame burning, forms opaque fire prevention offset plate, and it has stronger hardness, both can completely cut off the propagation of flame, smog and toxic gas effectively, can absorb the heat that the flame burning brought again, plays the effect of cooling.
And, have the clearance between second toughened glass 22 with third toughened glass 23 in order to form and aerify the layer 40, can effectual separation heat transfer, delay spreading of the intensity of a fire, the energy saving to compare the ordinary glass of same thickness, can also improve the security performance of fire prevention glass curtain wall.
Further, the thickness of the filling layer filled with the fire-retardant silicon 30 is not less than 10 mm. In this embodiment, the thickness of the filling layer is 10 mm. The conventional fireproof glass generally adopts three pieces of glass to sandwich 2 layers of fireproof silicon 30, the thickness of the fireproof silicon 30 is generally 5mm, and in the embodiment, 10mm of fireproof silicon 30 is directly filled between the first toughened glass 21 and the second toughened glass 22, so that one silicon filling process can be saved, one layer of glass can be reduced, the cost is reduced, and the overall permeability is increased.
With reference to fig. 1, the first glass curtain wall and the second glass curtain wall further include fourth tempered glass 24, the fourth tempered glass 24 is located outside the third tempered glass 23, and a PVB adhesive film layer 50 is disposed between the third tempered glass 23 and the fourth tempered glass 24. Through third toughened glass 23 with fill PVB glue in order to form toughened laminated glass between the fourth toughened glass 24, not only have the characteristics of the great impact resistance of toughened glass, also have ordinary laminated glass's characteristic, even glass is cracked, the piece also can be because of the effect of middle cementing layer is glued as an organic whole, makes it effectively prevent the piece emergence of the incident that falls, has ensured personal safety.
Furthermore, in this embodiment, the thicknesses of the first tempered glass 21, the second tempered glass 22, the third tempered glass 23, and the fourth tempered glass 24 are all 8mm, and the thickness of the PVB film layer 50 is 1.52 mm.
In this embodiment, the gas-filled layer 40 is filled with argon gas. Because the acoustic coefficient of argon gas is little, and the quality is big, makes it is difficult to form the convection current to aerify layer 40, so can improve through filling argon gas fire prevention glass curtain wall's energy-saving, syllable-dividing effect, ultraviolet resistance ability, the ability of making an uproar and mechanical strength fall.
Further, the air-filled layer 40 also contains a drying agent 41, so as to ensure the dryness in the air-filled layer 40 and improve the heat insulation effect.
In this embodiment, a Low-E film (not shown) covers a surface of the third tempered glass 23 on a side away from the fourth tempered glass 24 to form Low-E glass, and the Low-E film has characteristics of high visible light transmittance and high mid-far infrared light reflectance, so that compared with common glass and conventional coated glass for buildings, the Low-E glass has excellent heat insulation effect and good light transmittance.
In this embodiment, the vertical keel 10 may be a U-shaped steel member for supporting the fire-resistant glass curtain wall.
Referring to fig. 1, the connecting assembly includes a pressing plate 60, an auxiliary frame 70 and a fastening member 80, the pressing plate 60 and the auxiliary frame 70 are respectively located at the inner side and the outer side of the first glass curtain wall, the auxiliary frame 70 is fixedly connected with the vertical keel 10, two ends of the pressing plate 60 and two ends of the auxiliary frame 70 are respectively in contact with the first glass curtain wall and the second glass curtain wall, an installation gap is formed between the first glass curtain wall and the second glass curtain wall, and the fastening member 80 sequentially penetrates through the pressing plate 60, the installation gap and the auxiliary frame 70 from outside to inside.
In this embodiment, the fixing connection between the subframe 70 and the vertical keel 10 includes, but is not limited to, welding, the fastener 80 is, for example, a bolt, the pressing plate 60 is pressed against the first glass curtain wall and the second glass curtain wall by the bolt, and the bolt penetrates through the subframe 70 and then is locked by a nut.
The pressing plate 60 reaches the sub-frame 70 with first glass curtain wall reaches all be provided with sealed glue 61 between the second glass curtain wall, through setting up sealed glue 61 in order to guarantee aerify the airtight of layer 40. In this embodiment, the sealant 61 includes but is not limited to epdm.
With reference to fig. 1, the fire-proof glass curtain wall further includes an aluminum alloy decorative cover plate 90, and the aluminum alloy decorative cover plate 90 is fastened to the pressing plate 60. In order to keep the appearance decoration effect of the curtain wall, the aluminum alloy decoration cover plate 90 is additionally arranged outside the pressing plate 60, so that the fireproof requirement of the glass curtain wall is met, and meanwhile, the glass curtain wall has a good appearance decoration effect.
Specifically, please refer to fig. 2, fig. 2 is a partial enlarged view of the fire-proof glass curtain wall according to an embodiment of the present invention. Be provided with a bellying 91 on two relative lateral walls of aluminum alloy decorative cover plate 90 respectively, down buckling and forming a joint portion 62 on two relative lateral walls of clamp plate 60, bellying 91 is located joint portion 62's inboard, and two interval between joint portion 62 is greater than two the interval of bellying 91, bellying 91 with clamp plate 60's lateral wall butt, joint portion 62 with aluminum alloy decorative cover plate 90's lateral wall butt. In this embodiment, the side wall of the pressing plate 60 is similar to a V shape, that is, the side wall of the pressing plate 60 is first expanded outward and then bent inward to form the clamping portions 62, and the indirect distance between the two clamping portions 62 is the maximum distance between the two side walls of the pressing plate 60. The lateral wall of clamp plate 60 is at the in-process that expands outward, bellying 91 card on the aluminum alloy decorative cover plate 90 is in on the lateral wall of clamp plate 60, simultaneously joint portion 62 supports on the lateral wall of aluminum alloy decorative cover plate 90, and because two interval between joint portion 62 is greater than two the interval of bellying 91, so make aluminum alloy decorative cover plate 90 lock is in the outside of clamp plate 60. Effectively avoided the scheduling problem that punches that threaded connection arouses through this design, promoted the whole pleasing to the eye degree of fire prevention glass curtain wall, and structural design is ingenious, and the installation is convenient with the dismantlement.
To sum up, the embodiment of the utility model provides a fire prevention glass curtain wall through having the fire prevention silicon of packing between first toughened glass and second toughened glass, when the conflagration takes place, pack intraformational fire prevention silicon and begin the foaming inflation (the foaming inflation multiple is up to 10 times), absorb the high heat that the flame burning brought, form opaque fire prevention offset plate, it has stronger hardness, both can completely cut off flame effectively, smog and toxic gaseous propagation, can absorb the heat that the flame burning brought again, play the effect of cooling. Simultaneously, have the clearance between second toughened glass and the third toughened glass in order to form the layer of aerifing, can effectual separation thermal transmission, delay stretching of the intensity of a fire, the energy saving to compare the ordinary glass of same thickness, can also improve the security performance of fire prevention glass curtain wall.
It should also be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, the foregoing description is not intended to limit the invention. To anyone skilled in the art, without departing from the scope of the present invention, the technical solution disclosed above can be used to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (10)
1. A fire-resistant glass curtain wall, comprising:
a vertical keel;
the first glass curtain wall and the second glass curtain wall are spliced along the wall surface direction, the first glass curtain wall and the second glass curtain wall are erected on the vertical keel and respectively comprise first toughened glass, second toughened glass and third toughened glass which are sequentially arranged from inside to outside, a gap is formed between the first toughened glass and the second toughened glass to form a filling layer, the filling layer is filled with fireproof silicon, and a gap is formed between the second toughened glass and the third toughened glass to form an inflatable layer;
and the connecting assembly is used for connecting and fixing the first glass curtain wall and the second glass curtain wall.
2. The fire-resistant glass curtain wall of claim 1, wherein the first glass curtain wall and the second glass curtain wall further comprise a fourth tempered glass, the fourth tempered glass is located on the outer side of the third tempered glass, and a PVB (polyvinyl butyral) adhesive film layer is arranged between the third tempered glass and the fourth tempered glass.
3. The fire-resistant glass curtain wall as claimed in claim 2, wherein a Low-E film covers a surface of a side of the third tempered glass facing away from the fourth tempered glass.
4. Fire-resistant glass curtain wall according to claim 1, characterised in that the thickness of the filling layer is not less than 10 mm.
5. Fire-resistant glass curtain wall according to claim 1, characterised in that the gas-filled layer is filled with argon.
6. Fire-resistant glass curtain wall according to claim 4, characterised in that the air-filled layer also contains a desiccant.
7. The fire-proof glass curtain wall of claim 1, wherein the connecting assembly comprises a pressing plate, an auxiliary frame and a fastener, the pressing plate and the auxiliary frame are respectively positioned on the inner side and the outer side of the first glass curtain wall, the auxiliary frame is fixedly connected with the vertical keel, two ends of the pressing plate and two ends of the auxiliary frame are respectively in contact with the first glass curtain wall and the second glass curtain wall, a mounting gap is formed between the first glass curtain wall and the second glass curtain wall, and the fastener sequentially penetrates through the pressing plate, the mounting gap and the auxiliary frame from outside to inside.
8. The fire resistant glass curtain wall of claim 7 wherein a sealant is disposed between the pressure plate and the subframe and the first glass curtain wall and the second glass curtain wall.
9. The fire resistant glass curtain wall of claim 7, further comprising an aluminum alloy trim cover panel that snaps onto the pressure panel.
10. The fireproof glass curtain wall according to claim 9, wherein a protruding portion is disposed on each of two opposite side walls of the aluminum alloy decorative cover plate, the two opposite side walls of the pressing plate are bent outward to form a clamping portion, the protruding portion is located on the inner side of the clamping portion, the distance between the two clamping portions is larger than the distance between the two protruding portions, the protruding portion abuts against the side wall of the pressing plate, and the clamping portion abuts against the side wall of the aluminum alloy decorative cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733105.3U CN215290880U (en) | 2021-04-09 | 2021-04-09 | Fireproof glass curtain wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733105.3U CN215290880U (en) | 2021-04-09 | 2021-04-09 | Fireproof glass curtain wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215290880U true CN215290880U (en) | 2021-12-24 |
Family
ID=79536085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120733105.3U Expired - Fee Related CN215290880U (en) | 2021-04-09 | 2021-04-09 | Fireproof glass curtain wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215290880U (en) |
-
2021
- 2021-04-09 CN CN202120733105.3U patent/CN215290880U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |