CN214943756U - Aluminum alloy fire-resistant window with explosion-proof function - Google Patents
Aluminum alloy fire-resistant window with explosion-proof function Download PDFInfo
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- CN214943756U CN214943756U CN202121158732.5U CN202121158732U CN214943756U CN 214943756 U CN214943756 U CN 214943756U CN 202121158732 U CN202121158732 U CN 202121158732U CN 214943756 U CN214943756 U CN 214943756U
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- explosion
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- proof glass
- fire
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 24
- 230000009970 fire resistant effect Effects 0.000 title claims description 27
- 239000011521 glass Substances 0.000 claims abstract description 68
- 238000005496 tempering Methods 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims description 31
- 229910001220 stainless steel Inorganic materials 0.000 claims description 31
- 239000011490 mineral wool Substances 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910002804 graphite Inorganic materials 0.000 claims description 23
- 239000010439 graphite Substances 0.000 claims description 23
- 239000003063 flame retardant Substances 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000011796 hollow space material Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 16
- 239000002360 explosive Substances 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000003292 glue Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an aluminum alloy fire resisting window with explosion-proof function, including explosion-proof frame, install tempering explosion-proof glass in the explosion-proof frame, tempering explosion-proof glass divide into indoor tempering explosion-proof glass and outdoor tempering explosion-proof glass, indoor tempering explosion-proof glass is close to outdoor tempering explosion-proof glass one side and is pasted the rupture membrane, whole device adaptation is in places such as the mill that probably takes place the explosion dangerous situation, and blast proof ability is strong, and the refractiveness is high, can hinder the cigarette and insulate against heat, reaches necessary guard action, prevents to cause casualties and loss of property, when not reaching preset explosive power, fire resisting window can normally work; when the preset explosive force is reached, the explosion-proof frame can deform, but the assembly can still be used in a limp manner, so that personnel can be prevented from being trapped and trapped; and the necessary airtight isolation function can be achieved, the isolated space and the outside air are prevented from directly convecting, and the pollution of the isolated and protected space to the outside is reduced.
Description
Technical Field
The utility model relates to an explosion-proof aluminum alloy fire-resistant window technical field specifically is an aluminum alloy fire-resistant window with explosion-proof function.
Background
In recent years, the explosion time of some factories is more and more, a lot of casualties always happen when the explosion happens, and a fire disaster is likely to happen along with the explosion, so the demand for the aluminum alloy fire resisting window with the explosion-proof function is more and more, and the existing fire resisting window technology rarely considers the shockproof technology.
The extremely strong impact force generated by explosion can affect the deformation of the fire-resistant window frame, thereby destroying the performance of the whole window.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aluminum alloy fire-resistant window with explosion-proof function to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides an aluminum alloy fire-resistant window with explosion-proof function, includes explosion-proof frame, installs the explosion-proof glass of tempering in the explosion-proof frame, and is equipped with the rock wool board in the explosion-proof frame, and explosion-proof glass of tempering divide into indoor explosion-proof glass of tempering and outdoor explosion-proof glass of tempering, and indoor explosion-proof glass of tempering is close to outdoor explosion-proof glass of tempering one side and is pasted the rupture membrane, and indoor explosion-proof glass of tempering top left side fixedly connected with second spring.
Preferably, the joint of the indoor tempered explosion-proof glass and the frame at the lower end of the explosion-proof frame is provided with flame-retardant sealant, a glue-free graphite expansion strip is arranged below the top end of the indoor tempered explosion-proof glass, a fireproof glass cushion block is arranged at the lower end of the glue-free graphite expansion strip, a stainless steel sash corner is fixedly connected below the fireproof glass cushion block, a glass-reinforced steel hook sheet is fixedly connected to the stainless steel sash corner, a rock wool board is arranged below the stainless steel sash corner, the left side of the rock wool board is provided with a mullion, the right side of the rock wool board is provided with a steel lining, a fireproof device is arranged below the rock wool board, a temperature control window closer is arranged below the fireproof device, a pair of springs is fixedly connected to the left side of the temperature control window closer, a stainless steel inserting angle sheet is fixedly connected to the left side of the springs, and the stainless steel inserting angle sheet is fixedly connected to the explosion-proof frame.
Preferably, the joints of the aluminum alloy fire-resistant windows are provided with flame-retardant sealants.
Preferably, the two ends of the indoor tempered explosion-proof glass and the two ends of the outdoor tempered explosion-proof glass are provided with clamping blocks to separate the indoor and outdoor explosion-proof glass to form a closed hollow space, and the explosion-proof film is positioned in the space and is attached to the indoor tempered explosion-proof glass.
Preferably, the outer side of the outer frame is arc-shaped, the inner side of the outer frame is regular hexagonal, the joint of the two sides and the explosion-proof frame is trapezoidal, and the joint of the explosion-proof frame and the explosion-proof frame is provided with a C-shaped clamping groove which is just clamped with the outer frame.
As preferred, the left side of refractory apparatus is including the conversion frame, and the conversion frame right side is equipped with the second rock wool board, and second rock wool board right side is equipped with gluey graphite expansion strip, has a confined rectangle frame outside the gluey graphite expansion strip, fixedly connected with stainless steel frame cornerite on the rectangle frame, the stainless steel frame cornerite other end and conversion frame fixed connection.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this aluminum alloy fire resistant window with explosion-proof function is provided with no gluey graphite expansion strip and fire prevention glass cushion on the window glass top, and when the heat capacity is high, the graphite expansion strip heat absorption begins the inflation, and the volume after the inflation can not only firmly be fixed window glass, hinders the heat moreover and hinders the cigarette, and the function is various.
2. This aluminum alloy fire-resistant window with explosion-proof function is provided with the stainless steel frame cornerite, utilizes threaded connection, and is firm durable, meets thermal expansion with the rock wool board of the inside and takes gluey graphite expansion strip and also can not go to extrude other spaces to the work and the utility of the part that influence setting up in other spaces, and be provided with the rock wool board in the outside from the window frame, still have certain hygroscopicity.
3. This fire-resistant window of aluminum alloy with explosion-proof function has set up fire-retardant sealed glue at window frame and aluminum alloy frame junction, avoids the high temperature to influence its interior part normal work, has also played the fixed action when sealed, and very strong thermal-insulated function in addition can let the thermal-insulated effect and the fire resistance of whole window frame promote greatly.
4. This aluminum alloy fire resisting window with explosion-proof function is provided with the frame outside control by temperature change window closer, plays the guard action, and the frame outside is circular-arc for the compressive capacity of circular arc is strongest, and the inboard sets up to regular hexagon shape, and is the resistance to deformation ability strongest for regular hexagon, when the explosion produces, in order to make its explosion-proof window frame reach can warp, but the condition of use still needs to be maintained to the subassembly to avoid personnel to be held back, hinder poverty.
5. This fire-resistant window of aluminum alloy with explosion-proof function sets up solid glass steel and colludes piece and stainless steel inserted angle piece all for the intensity of reinforcing tie point, makes whole device more firm like this, and is provided with the spring, in order when the explosion produces, strengthens its compressive capacity, protects the inside structure of explosion-proof window frame, makes its normal operating that does not influence other subassemblies.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the explosion-proof frame of the present invention;
FIG. 3 is a schematic structural view of the temperature-controlled window closer of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the refractory device of FIG. 1 according to the present invention;
the fireproof and fireproof glass comprises an explosion-proof frame 1, toughened explosion-proof glass 2, indoor toughened explosion-proof glass 3, outdoor toughened explosion-proof glass 4, an explosion-proof membrane 5, a flame-retardant sealant 6, a non-adhesive graphite expansion strip 7, a fireproof glass cushion block 8, a stainless steel sash angle 9, a glass reinforced plastic hook sheet 10, a rock wool board 11, a mullion 12, a steel lining 13, a temperature control window closer 14, a spring 15, a stainless steel corner inserting sheet 16, a second spring 17, an outer frame 18, a C-shaped clamping groove 19, a clamping block 20, a fireproof device 21, a conversion frame 22, a second rock wool board 23, an adhesive graphite expansion strip 24, a rectangular frame 25 and a stainless steel frame angle 26
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): referring to the schematic illustrations of figures 1-4,
an aluminum alloy fire-resistant window with an explosion-proof function comprises an explosion-proof frame 1, tempered explosion-proof glass 2 is installed in the explosion-proof frame 1, a rock wool board 11 is arranged in the explosion-proof frame 1, the tempered explosion-proof glass 2 is divided into indoor tempered explosion-proof glass 3 and outdoor tempered explosion-proof glass 4, an explosion-proof film 5 is attached to one side, close to the outdoor tempered explosion-proof glass 4, of the indoor tempered explosion-proof glass 3, and a second spring 17 is fixedly connected to the left side of the top end of the indoor tempered explosion-proof glass 3;
the joint between the lower end frame of the explosion-proof frame 1 and the indoor toughened explosion-proof glass 3 is provided with a flame-retardant sealant 6, the lower part of the top end of the indoor toughened explosion-proof glass 3 is provided with a non-adhesive graphite expansion strip 7, the lower end of the non-adhesive graphite expansion strip 7 is provided with a fireproof glass cushion block 8, the lower part of the fireproof glass cushion block 8 is fixedly connected with a stainless steel sash angle 9, the stainless steel sash angle 9 is fixedly connected with a glass-reinforced steel hook piece 10, the lower part of the stainless steel sash angle 9 is provided with a rock wool board 11, the left side of the rock wool board 11 is provided with a middle stile 12, the right side is provided with a steel lining 13, the lower part of the rock wool board 11 is provided with a refractory device 21, the lower part of the refractory device 21 is provided with a temperature control window closer 14, the left side of the temperature control window closer 14 is fixedly connected with a pair of springs 15, the left side of the springs 15 is fixedly connected with a stainless steel inserting angle piece 16, the stainless steel inserting angle piece 16 is fixedly connected on the explosion-proof frame 1, the lower side of the explosion-proof glass is provided with the non-adhesive graphite expansion strip 7 and the fireproof glass cushion block 8, when a fire disaster happens, the non-adhesive graphite expansion strip 7 expands when heated, and the tempered explosion-proof glass 2 can be firmly fixed and cannot easily fall off; the middle support 12 plays a role in separation; the stainless steel inserting angle piece 16 is used for enabling the strength of a connecting point to be stronger and not easy to be damaged by temperature rise or explosion; the arrangement of the rock wool plate 11 can ensure that the fireproof and flame-retardant effects in the whole frame are better, and the rock wool plate has high hygroscopicity and can effectively prevent harmful gas from spreading; the steel lining 13 is also used for enhancing the strength of the internal structure of the frame, the temperature-controlled window closer 14 is used for controlling the window to be closed tightly when the temperature rises to form a relatively closed space, so as to achieve the necessary protection effect, a pair of springs 15 are connected outside the temperature-controlled window closer 14, the generated instant impact force is very large when explosion is generated, and the temperature-controlled window closer 14 can normally work even if the frame deforms by utilizing the cushioning and compression resistance of the springs in order to prevent the instant impact force from being too large to influence the work of the temperature-controlled window closer 14;
the joints of the aluminum alloy fire-resistant window are provided with the flame-retardant sealant 6, so that the whole explosion-proof frame 1 is in a closed state, the influence of dust on internal components can be effectively isolated, and when the temperature rises, the flame-retardant sealant 6 plays a certain flame-retardant role, the internal components of the explosion-proof frame 1 can be well sealed, and the fire resistance of the whole fire-resistant window is higher;
the two ends of the indoor tempered explosion-proof glass 3 and the two ends of the outdoor tempered explosion-proof glass 4 are provided with the clamping blocks 20 to separate the indoor and outdoor explosion-proof glasses to form a closed hollow space, the explosion-proof film 5 is positioned in the space and attached to the indoor tempered explosion-proof glass 3, the tempered explosion-proof glass 2 is provided with the indoor tempered explosion-proof glass 3 and the outdoor tempered explosion-proof glass 4, the double-layer structure can enable the whole window to have stronger explosion-proof capability and wider protection range, and the explosion-proof film 5 is attached to the closed space separated by the clamping blocks 20 to enable the whole explosion-proof performance of the fire-proof window to be better;
the outer side of the temperature control window closer 14 is wrapped with an outer frame 18, the outer side of the outer frame 18 is in an arc shape, the inner side of the outer frame 18 is in a regular hexagon shape, the joint of two sides of the outer frame and the explosion-proof frame 1 is in a trapezoid shape, the joint of the explosion-proof frame 1 and the outer frame is provided with a C-shaped clamping groove 19 which is just clamped with the outer frame 18, the outer side of the temperature control window closer 14 is provided with a protective device outer frame 18, the outer side of the outer frame is in the arc shape so that the pressure resistance of the whole frame is higher when explosion is generated, the inner part of the outer frame is in the regular hexagon shape so that the deformation resistance of the whole frame is higher, and the explosion is strong even if the whole frame is subjected to point impact force deformation, the temperature control window closer can normally work, the window is closed, smoke and heat are blocked, necessary protective action is achieved, and casualties and property loss are prevented;
the leftmost side of the fireproof device 21 comprises a conversion frame 22, a second rock wool board 23 is arranged on the right side of the conversion frame 22, a graphite expansion strip 24 with glue is arranged on the right side of the second rock wool board 23, a closed rectangular frame 25 is arranged outside the graphite expansion strip 24 with glue, a stainless steel frame wrap angle 26 is fixedly connected to the rectangular frame 25, the other end of the stainless steel frame wrap angle 26 is fixedly connected with the conversion frame 22, the whole fireproof device is fixed through the stainless steel frame wrap angle 26, when the graphite expansion strip 24 with glue absorbs heat and begins to expand in the closed rectangular frame 25, the rectangular frame 25 can be deformed, the rectangular frame 25 can be well fixed due to the stainless steel frame wrap angle 26, the influence of the deformation on the normal operation of other internal components is prevented, and the conversion frame 22 is used for fixing a window when the window is opened to any angle;
the working principle is as follows: when an explosion fire hazard happens, the explosion-proof frame 1 and the tempered explosion-proof glass 2 of the fire-proof window resist the impact force generated by explosion, even if the explosion-proof frame 1 deforms, the internal components are connected with the outer frame 18 because of the arrangement of the spring 15, and the temperature control window closer 14 is arranged in the outer frame 18, the negative influence generated by deformation can be well resisted, the temperature control window closer 14 can work normally, the outer side of the outer frame 18 is arc-shaped and resists pressure, and the inner side of the outer frame 18 is regular hexagon and resists deformation; when the temperature rises, the temperature control window closer 14 closes the whole window, smoke and heat are blocked, the outer frame 18 and the C-shaped clamping groove 19 can be well matched, the installation and fixing effects are also good, the arranged flame-retardant sealant 6 can well block part of heat, the fire resistance of the fire-resistant window is improved, when a certain temperature is reached, the inner glue-free graphite expansion strip 7 begins to expand to achieve the first-step flame-retardant and smoke-insulation effects, the glue-free graphite expansion strip 7 is well fixed on the indoor tempered and explosion-proof glass 2 through the fireproof glass cushion block 8, and the indoor tempered and explosion-proof glass 2 also has a certain fixing effect, the stainless steel sash wrap angle 9 and the glass-fixed steel hook piece 10 are both used for achieving a better fixing effect and preventing the window from falling due to the explosion impact and the rise of the fire temperature, the rock wool board 11 is also fixed on the explosion-proof frame 1 through the clamping groove, so that the replacement and installation are also very convenient, the fireproof device 21 is arranged, the two fireproof devices are separated by the aid of the middle support, so that the fireproof effect is better, when the temperature is higher, the fireproof device 21 starts to work, the expansion strip 24 with the rubber and graphite absorbs heat to expand, the rectangular frame 25 fixes the expansion strip with a classroom touch therein, the rectangular frame 25 is specified by the wrapping angle 26 of the stainless steel frame, so that the expansion strip cannot be easily deformed, the second rock wool board 23 absorbs heat and separates smoke, the whole device is suitable for places such as factories and the like which are likely to have explosion risks, the explosion-proof capacity is strong, the fire resistance is high, the smoke and heat can be blocked, necessary protection effect can be achieved, casualties and property loss can be prevented, and when the preset explosion force is not achieved, the fireproof window can normally work; when the preset explosive force is reached, the explosion-proof frame 1 can deform, but the assembly can still be used to avoid personnel from being trapped and trapped; and the necessary airtight isolation function can be achieved, the isolated space and the outside air are prevented from directly convecting, and the pollution of the isolated and protected space to the outside is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an aluminum alloy fire-resistant window with explosion-proof function, a serial communication port, including explosion-proof frame (1), install tempering explosion-proof glass (2) in explosion-proof frame (1), and be equipped with rock wool board (11) in explosion-proof frame (1), tempering explosion-proof glass (2) divide into indoor tempering explosion-proof glass (3) and outdoor tempering explosion-proof glass (4), indoor tempering explosion-proof glass (3) are close to outdoor tempering explosion-proof glass (4) one side and have pasted rupture membrane (5), and indoor tempering explosion-proof glass (3) top left side fixedly connected with second spring (17).
2. The aluminum alloy fire-resistant window with the explosion-proof function according to claim 1, wherein a fire-retardant sealant (6) is arranged at the joint of the indoor tempered and explosion-proof glass (3) in the lower end frame of the explosion-proof frame (1), a non-adhesive graphite expansion strip (7) is arranged below the top end of the indoor tempered and explosion-proof glass (3), a fire-proof glass cushion block (8) is arranged at the lower end of the non-adhesive graphite expansion strip (7), a stainless steel sash angle (9) is fixedly connected below the fire-proof glass cushion block (8), a glass-reinforced plastic hook sheet (10) is fixedly connected on the stainless steel sash angle (9), a rock wool board (11) is arranged below the stainless steel sash angle (9), a mullion (12) is arranged at the left side of the rock wool board (11), a steel lining (13) is arranged at the right side of the rock wool board (11), a fire-resistant device (21) is arranged below the fire-resistant device (21), a temperature control window closer (14) is arranged below the fire-resistant device (21), the temperature control window closer is characterized in that a pair of springs (15) are fixedly connected to the left side of the temperature control window closer (14), stainless steel inserting angle pieces (16) are fixedly connected to the left side of the springs (15), and the stainless steel inserting angle pieces (16) are fixedly connected to the explosion-proof frame (1).
3. The aluminum alloy fire-resistant window with the explosion-proof function as recited in claim 1, wherein the joints of the aluminum alloy fire-resistant window are provided with flame-retardant sealant (6).
4. The aluminum alloy fire-resistant window with the explosion-proof function as claimed in claim 1, wherein the indoor tempered explosion-proof glass (3) and the outdoor tempered explosion-proof glass (4) are provided with clamping blocks (20) at two ends to separate the indoor and the outdoor explosion-proof glass to form a closed hollow space, and the explosion-proof membrane (5) is positioned in the space and attached to the indoor tempered explosion-proof glass (3).
5. The aluminum alloy fire-resistant window with the explosion-proof function as recited in claim 2, wherein the temperature-controlled window closer (14) is wrapped with an outer frame (18), the outer side of the outer frame (18) is arc-shaped, the inner side of the outer frame is hexagonal, the joint of the two sides and the explosion-proof frame (1) is trapezoidal, and the joint of the explosion-proof frame (1) and the outer frame (18) is provided with a C-shaped clamping groove (19) which is just clamped.
6. The aluminum alloy fire-resistant window with the explosion-proof function according to claim 2, wherein the fire-resistant device (21) comprises a conversion frame (22) at the leftmost side, a second rock wool board (23) is arranged at the right side of the conversion frame (22), a glued graphite expansion strip (24) is arranged at the right side of the second rock wool board (23), a closed rectangular frame (25) is arranged outside the glued graphite expansion strip (24), a stainless steel frame wrap angle (26) is fixedly connected to the rectangular frame (25), and the other end of the stainless steel frame wrap angle (26) is fixedly connected with the conversion frame (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121158732.5U CN214943756U (en) | 2021-05-27 | 2021-05-27 | Aluminum alloy fire-resistant window with explosion-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121158732.5U CN214943756U (en) | 2021-05-27 | 2021-05-27 | Aluminum alloy fire-resistant window with explosion-proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214943756U true CN214943756U (en) | 2021-11-30 |
Family
ID=79058765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121158732.5U Expired - Fee Related CN214943756U (en) | 2021-05-27 | 2021-05-27 | Aluminum alloy fire-resistant window with explosion-proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214943756U (en) |
-
2021
- 2021-05-27 CN CN202121158732.5U patent/CN214943756U/en not_active Expired - Fee Related
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Granted publication date: 20211130 |