CN211597851U - Heat-insulation cooling dormitory building - Google Patents
Heat-insulation cooling dormitory building Download PDFInfo
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- CN211597851U CN211597851U CN202020100549.9U CN202020100549U CN211597851U CN 211597851 U CN211597851 U CN 211597851U CN 202020100549 U CN202020100549 U CN 202020100549U CN 211597851 U CN211597851 U CN 211597851U
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- trompil
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- 238000001816 cooling Methods 0.000 title claims abstract description 26
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- 230000008859 change Effects 0.000 claims abstract description 23
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 239000012774 insulation material Substances 0.000 claims description 30
- 239000011449 brick Substances 0.000 claims description 27
- 239000012782 phase change material Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
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- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 description 3
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- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the field of building design, in particular to a heat insulation and cooling dormitory building, which comprises a wall body, a roof positioned at the top of the wall body and a roof erected above the roof, wherein the roof is arranged obliquely downwards, and the bottommost part of the roof is positioned above the roof; the roof comprises an upper panel, a waterproof layer and an air circulation layer which are connected into a whole from top to bottom; the air circulation layer comprises a phase change layer, a ventilation layer and a base layer which are sequentially connected; the base layer comprises a wallboard, a moisture-proof steam-proof layer and a bottom panel which are connected in sequence; the wall body is including the first polyurethane acoustic celotex board, wall body and the second polyurethane acoustic celotex board that bond in proper order, and the both sides of wall body are equipped with first polyurethane acoustic celotex board and second polyurethane acoustic celotex board respectively. The utility model discloses thermal-insulated effectual, the cooling is effectual, and noise reduction effect is good, be favorable to building comfortable living environment.
Description
Technical Field
The utility model relates to a building design field especially relates to thermal-insulated cooling dormitory building.
Background
The south of China has warm climate, the roof is heated by sunlight in summer due to sunlight irradiation, the temperature generally exceeds 60 ℃, even exceeds 70 ℃, and the temperature difference with the indoor temperature exceeds 40 ℃, so that the heat transfer from the roof to the indoor becomes the main reason of increasing the indoor temperature, and the indoor cold load is greatly increased. On the other hand, the building does not have the heat insulation function, and external heat enters the room through the wall body, so that the indoor temperature is further high.
At the stage of taking the air conditioner as a main cooling measure at present, the energy consumption of the air conditioner is greatly increased, and the energy saving and sustainable development of buildings are not facilitated. In addition, the high temperature of the roof in summer also has an adverse effect on the building, thereby shortening the life of the building. Especially for students, the air conditioner is not installed in part of dormitories, which causes great trouble for the rest of the students.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a thermal-insulated cooling dormitory building that thermal-insulated heat preservation is effectual, the cooling is effectual, and noise reduction is effectual, be favorable to building comfortable living environment.
The utility model adopts the technical proposal that: the heat-insulation cooling dormitory building comprises a wall body, a roof positioned at the top of the wall body and a roof erected above the roof, wherein the roof is obliquely arranged downwards, and the bottommost part of the roof is positioned above the roof; the roof comprises an upper panel, a waterproof layer and an air circulation layer which are connected into a whole from top to bottom; the air circulation layer comprises a phase change layer, a ventilation layer and a base layer which are sequentially connected; the base layer comprises a wallboard, a moisture-proof steam-proof layer and a bottom panel which are connected in sequence; the wall body comprises a first polyurethane sound insulation board, a wall body and a second polyurethane sound insulation board which are bonded in sequence, wherein the first polyurethane sound insulation board and the second polyurethane sound insulation board are respectively arranged on two sides of the wall body; the wall body is made of heat insulation bricks, each heat insulation brick comprises a brick body, a heat reflection layer arranged on the outer surface of the brick body and a cavity arranged in the brick body, and a high-temperature heat insulation material layer, a medium-temperature heat insulation material layer, a low-temperature heat insulation layer material and a heat absorption material layer are sequentially stacked in the cavity from outside to inside; the roof includes the downward thermal-insulated tile that sets up of a plurality of even slope, and the roof is equipped with the water drainage tank bottom, and the roofing corresponds the water drainage tank and is equipped with the water conservancy diversion ditch.
The technical proposal is further improved in that the phase change layer is a hollow plate type sealing structure, the plate type sealing structure is flat, and phase change materials with the temperature of 40-48 ℃ are arranged in the plate type sealing structure; the ventilation layer is a cavity formed by a support, and the support separates an upper panel, a waterproof layer and a phase change layer on the ventilation layer from a wallboard, a moisture-proof steam-proof layer and a bottom panel below the ventilation layer.
The technical scheme is further improved in that the thickness of the high-temperature heat insulation material layer is 10-15 mm, the thickness of the medium-temperature heat insulation material layer is 5-8 mm, and the thickness of the low-temperature heat insulation material layer is 3-5 mm.
The further improvement to above-mentioned technical scheme does, first polyurethane acoustic celotex board and second polyurethane acoustic celotex board all seted up the first trompil of a plurality of and second trompil in the one side that deviates from the wall body, be provided with the strengthening rib in the first trompil, be provided with in the second trompil and inhale the sound cotton, and first trompil and second trompil intermittent type setting.
The utility model has the advantages that:
1. on the one hand, the utility model discloses a roofing has thermal-insulated cooling function, and the roof of roofing top still has thermal-insulated and waterproof function, and the wall body has the thermal-insulated function of giving sound insulation, can effectively play the waterproof function of making an uproar of falling of thermal-insulated cooling, is favorable to constructing comfortable living environment. In a second aspect, the roof comprises an upper panel, a waterproof layer and an air circulation layer which are connected with each other from top to bottom into a whole; the air circulation layer comprises a phase change layer, a ventilation layer and a base layer which are sequentially connected; the base layer comprises a wallboard, a moisture-proof steam-proof layer and a bottom panel which are connected in sequence; the phase change layer is used for absorbing the heat of sunlight and reducing and delaying the temperature of the roof in summer, so that the temperature difference between the roof and the room is reduced, the heat transfer to the room is reduced, and the aims of reducing the load of an air conditioner, saving energy and reducing consumption are fulfilled; it can be applied to the building of frame-type concrete structure, timber construction, steel structure etc. as the roofing, also can be applied to original building roof, as additional cooling integration roof boarding, the waterproof layer has improved the waterproof nature of roofing, the circulation of air can be strengthened on the circulation of air layer, make the heat on phase transition layer scatter as early as possible, the basic unit plays dampproofing vapour proof and firm function, the setting of roofing for the roofing of dormitory building has better heat-insulating cooling effect, further is favorable to building comfortable living environment. The third aspect, the wall body is including the first polyurethane acoustic celotex board that bonds in proper order, wall body and second polyurethane acoustic celotex board, the both sides of wall body are equipped with first polyurethane acoustic celotex board and second polyurethane acoustic celotex board respectively, for traditional foaming acoustic material, polyurethane has mechanical properties good, the advantage that acoustic performance is good, and the polyurethane acoustic celotex board is all installed to both sides, make the both sides of wall body all have better syllable-dividing effect, prevent to carry out noise interference each other through two rooms of same wall partition, it is effectual to give sound insulation, further be favorable to constructing comfortable living environment. In a fourth aspect, the wall body is made of heat insulation bricks, the heat insulation bricks comprise brick bodies, heat reflecting layers arranged on the outer surfaces of the brick bodies and cavities arranged inside the brick bodies, high-temperature heat insulation material layers, medium-temperature heat insulation material layers, low-temperature heat insulation material layers and heat absorption material layers are sequentially stacked in the cavities from outside to inside, the heat is firstly reflected back through the heat reflecting layers, then high-energy heat is separated through the high-temperature heat insulation material layers, then low-temperature heat is separated through the medium-temperature heat insulation material layers, and finally waste heat is absorbed through the heat absorption material layers, so that heat entering the room through the wall body is greatly reduced, the heat insulation effect is good, and the comfortable living environment is further facilitated to be created. In the fifth aspect, the roof comprises a plurality of heat insulation tiles which are uniformly inclined and downwards arranged, the lowest end of the roof is provided with a drainage groove, the roof is provided with a diversion trench corresponding to the drainage groove, rainwater can be conveniently and timely drained, a heat insulation effect is achieved, a waterproof heat insulation effect is good, and comfortable living environment can be further created.
2. The phase change layer is hollow plate type sealing structure, plate type sealing structure is the platykurtic, is equipped with 40-48 ℃ of phase change material in it, and when the roofing sun got hot, when the temperature rose to phase change temperature, phase change material absorbed heat in a large number, prevented that the heat from permeating the roofing and getting into indoorly, and the platykurtic structure can make phase change material more even absorption heat, and the heat absorption cooling effect is better.
3. The ventilation layer is a cavity formed by a support, and the support separates an upper panel, a waterproof layer and a phase change layer on the ventilation layer from a wallboard, a moisture-proof steam-proof layer and a bottom panel below the ventilation layer. The ventilation layer reaches the free ventilation, to the purpose of phase transition layer cooling to accelerated heat exchange efficiency, thermal-insulated cooling is effectual, further is favorable to building comfortable living environment.
4. The thickness of the high-temperature heat insulation material layer is 10-15 mm, the thickness of the medium-temperature heat insulation material layer is 5-8 mm, and the thickness of the low-temperature heat insulation material layer is 3-5 mm. The thickness of three-layer insulating layer sets up scientific and reasonable, and is effectual to thermal separation, has further improved the thermal-insulated heat preservation effect of dormitory building.
5. First polyurethane acoustic celotex board and second polyurethane acoustic celotex board deviate from one side of wall body and have all seted up the first trompil of a plurality of and second trompil, be provided with the strengthening rib in the first trompil, be provided with in the second trompil and inhale the sound cotton, and first trompil and second trompil intermittent type setting. Through trompil on the polyurethane acoustic celotex board, effectually absorbed sound to the effectual syllable-dividing effect that improves the polyurethane acoustic celotex board. Be provided with the strengthening rib in the first trompil, be provided with in the second trompil and inhale the sound cotton, and first trompil and second trompil intermittent type set up, strengthening rib in the first trompil reduces the vibrations of polyurethane acoustic celotex board, the existence of strengthening rib makes the acoustic celotex board receive the vibrations that the sound influence produced to the effectual propagation to sound carries out the separation, and then improved the syllable-dividing effect of acoustic celotex board, inhale the cotton packing of sound, can the active absorption sound wave, prevent that the sound wave from transmitting to the wall body opposite side, the syllable-dividing effect of wall body has further been improved. The first opening and the second opening are arranged in a staggered mode, so that the sound wave transmission path is longer, the sound wave attenuation is more, and the sound insulation effect is better.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the roof of the present invention;
fig. 3 is a schematic structural view of the wall body of the present invention;
fig. 4 is a schematic structural view of the heat insulation brick of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, is a schematic structural diagram of the present invention.
Heat-insulating cooling dormitory building 10 includes wall 100, is located the roofing 200 at wall 100 top, erects the roof 300 in roofing 200 top, and roof 300 slope sets up downwards, and the bottommost of roof 300 is located roofing 200 top.
As shown in fig. 2, is a schematic structural diagram of the roof of the present invention.
The roof 200 includes an upper panel 210, a waterproof layer 220 and an air circulation layer which are connected to each other from top to bottom; the air circulation layer comprises a phase change layer 231, a ventilation layer 232 and a base layer which are connected in sequence; the base layer comprises a wall plate 233a, a moisture-proof and steam-proof layer 233b and a bottom layer 233c which are connected in sequence. The heat insulation layer 234 is arranged above the wall board, and the heat insulation layer 234 can be selected from polystyrene board or extruded polystyrene board, etc., so that the heat insulation performance of the base layer is further improved, the heat transfer to the indoor is reduced, the thickness of the used board is reduced, and better waterproof capability is provided. The moisture-proof and vapor-proof layer 233b may be selected from a polyethylene plastic film or a polyvinyl chloride plastic film; the moisture-proof steam-proof layer 233b is connected with the straw board wall plate 233a through an adhesive; the bottom panel 233c is selected from a cement pressure plate, a calcium silicate plate, a glass magnesium plate or a fireproof plate, and the like, and the bottom panel 233c is integrally connected with the above layers through bonding or screws to play a role in protection and support.
The phase change layer 231 is a hollow plate type sealing structure, the plate type sealing structure is flat, a sealing bag containing phase change material (sodium thiosulfate pentahydrate) with the temperature of about 45-48 ℃ is placed in the plate type sealing structure, before the solar radiation heat of the roof reaches 45 ℃, the phase change material and the integrated roof panel are heated to the ambient according to normal solar heat, and simultaneously are heated according to heat capacity, when the phase change temperature reaches 45 ℃, the phase change material starts to absorb a large amount of heat to generate phase change, the temperature is stabilized at about 45 ℃, so that the peak value of the roof temperature is delayed, when the phase change heat absorption process of the phase change material is completed, the roof temperature continues to rise, but the solar heat obtaining and the ambient heat radiation reach balance during the daytime, the temperature is difficult to rise again, the heat obtaining process is completed along with the falling of the sun, the temperature of the roof 200 is above 45 ℃, the temperature difference exists with the ambient air, and the heat radiation, when the temperature is reduced to 45 ℃, the phase change material is subjected to an opposite phase transformation process, such as the transition from the liquid state to the solid state of the pentahydrate sodium thiosulfate phase change material, the pentahydrate sodium thiosulfate phase change material dissipates heat to ambient air, and the temperature difference with the ambient air continuously exists until the transition from the liquid phase to the solid phase is completed, so that the temperature is continuously reduced, and the phase change material is consistent with the ambient environment.
As shown in fig. 3, is a schematic structural diagram of the wall body of the present invention.
The wall body 100 includes a first polyurethane soundproof panel 110, a wall body 120, and a second polyurethane soundproof panel 130 which are bonded in sequence, and both sides of the wall body 120 are respectively provided with the first polyurethane soundproof panel 110 and the second polyurethane soundproof panel 130.
As shown in fig. 4, is a schematic structural view of the heat insulation brick of the present invention.
The wall body 120 is made of heat insulation bricks 120a, the heat insulation bricks 120a comprise brick bodies 121, heat reflecting layers 122 arranged on the outer surfaces of the brick bodies 121, and cavities 123 arranged inside the brick bodies 121, wherein high-temperature heat insulation material layers, medium-temperature heat insulation material layers, low-temperature heat insulation material layers and heat absorption material layers are sequentially stacked in the cavities 123 from outside to inside; the roof 300 includes a plurality of heat insulation tiles 310 which are uniformly inclined and downwardly disposed, and the lowest end of the roof 300 is provided with a drainage groove 320, and the roof 200 is provided with a diversion trench 210 corresponding to the drainage groove 320.
On the one hand, the utility model discloses a roofing 200 has thermal-insulated cooling function, and the roof 300 of roofing 200 top still has thermal-insulated and waterproof function, and wall body 100 has the thermal-insulated function of giving sound insulation, can effectively play the waterproof function of making an uproar of falling of thermal-insulated cooling, is favorable to constructing comfortable living environment. In a second aspect, the roof 200 includes an upper panel 210, a waterproof layer 220 and an air circulation layer, which are integrally connected from top to bottom; the air circulation layer comprises a phase change layer 231, a ventilation layer 232 and a base layer which are connected in sequence; the base layer comprises a wallboard 233a, a moisture-proof steam-proof layer 233b and a bottom layer panel 233c which are connected in sequence; the phase change layer 231 is used for absorbing the heat of sunlight and reducing and delaying the temperature of the roof 200 in summer, so that the temperature difference between the roof 200 and the room is reduced, the heat transfer to the room is reduced, and the aims of reducing the load of an air conditioner, saving energy and reducing consumption are fulfilled; it can be applied to the building of frame-type concrete structure, the timber structure, steel structure etc. as roofing 200, also can be applied to original building roof 300, as additional cooling integration roofing 200 board, waterproof layer 220 has improved the waterproof nature of roofing 200, circulation of air can be strengthened on the circulation of air layer, make the heat on phase change layer 231 dispel as early as possible, the basic unit plays dampproofing steam insulation and firm function, roofing 200's setting, make the roofing 200 of dormitory building 10 have better heat-insulating cooling effect, further be favorable to constructing comfortable living environment. Third aspect, wall body 100 is including the first polyurethane acoustic celotex board 110 that bonds in proper order, wall body 120 and second polyurethane acoustic celotex board 130, the both sides of wall body 120 are equipped with first polyurethane acoustic celotex board 110 and second polyurethane acoustic celotex board 130 respectively, for traditional foaming acoustic material, polyurethane has mechanical properties good, the advantage that acoustic celotex performance is good, and the polyurethane acoustic celotex board is all installed to both sides, make wall body 100's both sides all have better syllable-dividing effect, prevent to carry out noise interference each other through two rooms of same wall partition, it is effectual to give sound insulation, further be favorable to constructing comfortable living environment. In a fourth aspect, the wall body 120 is made of a heat insulation brick 120a, the heat insulation brick 120a includes a brick body 121, a heat reflection layer 122 disposed on an outer surface of the brick body 121, a cavity 123 disposed inside the brick body 121, a high temperature heat insulation material layer, a medium temperature heat insulation material layer, a low temperature heat insulation material layer and a heat absorption material layer stacked in sequence from outside to inside in the cavity 123, firstly, the heat is reflected back through the heat reflection layer 122, then, the high temperature heat insulation material layer separates high energy heat, then, the medium temperature heat insulation material layer separates lower heat, then, the low temperature heat insulation material layer separates low heat, and finally, the heat absorption material layer absorbs waste heat, thereby greatly reducing the heat entering the room through the wall body 100, and having good heat insulation effect and further facilitating the construction of a comfortable living environment. In the fifth aspect, the roof 300 includes a plurality of heat insulation tiles 310 which are uniformly inclined and downwardly disposed, and the lowest end of the roof 300 is provided with a drainage groove 320, and the roof 200 is provided with a diversion trench 210 corresponding to the drainage groove 320, so as to facilitate timely drainage of rainwater, and have a heat insulation effect, and the roof has a good waterproof and heat insulation effect, and is further beneficial to creating a comfortable living environment.
The ventilation layer 232 is a cavity 123 formed by a bracket that separates the upper panel 210, the waterproof layer 220, and the phase change layer 231 thereon from the lower wall panel 233a, the moisture-proof vapor barrier 233b, and the bottom panel 233 c. Ventilation layer 232 reaches the free ventilation, to the purpose of phase transition layer 231 cooling to accelerated heat exchange efficiency, thermal-insulated cooling is effectual, further is favorable to building comfortable living environment.
The thickness of the high-temperature heat insulation material layer is 10-15 mm, the thickness of the medium-temperature heat insulation material layer is 5-8 mm, and the thickness of the low-temperature heat insulation material layer is 3-5 mm. The thickness of three-layer insulating layer sets up scientific and reasonable, and is effectual to thermal separation, has further improved dormitory building 10's thermal-insulated heat preservation effect.
First polyurethane acoustic celotex board 110 and second polyurethane acoustic celotex board 130 all seted up the first trompil 111 of a plurality of and second trompil 112 in the one side that deviates from wall body 120, are provided with strengthening rib 113 in the first trompil 111, are provided with in the second trompil 112 and inhale sound cotton 114, and first trompil 111 and the intermittent type setting of second trompil 112. Through trompil on the polyurethane acoustic celotex board, effectually absorbed sound to the effectual syllable-dividing effect that improves the polyurethane acoustic celotex board. Be provided with strengthening rib 113 in first trompil 111, be provided with in the second trompil 112 and inhale sound cotton 114, and first trompil 111 and the intermittent type setting of second trompil 112, strengthening rib 113 in the first trompil 111, reduce the vibrations of polyurethane acoustic celotex board, the existence of strengthening rib 113 makes the acoustic celotex board receive the vibrations that the sound influence produced to reduce, thereby the effectual propagation to the sound carries out the separation, and then the syllable-dividing effect of acoustic celotex board has been improved, inhale the packing of sound cotton 114, can effectively absorb the sound wave, prevent sound wave transmission to wall body 100 opposite side, the syllable-dividing effect of wall body 100 has further been. The first opening 111 and the second opening 112 are arranged in a staggered manner, so that the sound wave transmission path is longer, the sound wave attenuation is more, and the sound insulation effect is better.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. Thermal-insulated cooling dormitory building, its characterized in that: the roof is arranged obliquely downwards, and the bottommost part of the roof is positioned above the roof; the roof comprises an upper panel, a waterproof layer and an air circulation layer which are connected into a whole from top to bottom; the air circulation layer comprises a phase change layer, a ventilation layer and a base layer which are sequentially connected; the base layer comprises a wallboard, a moisture-proof steam-proof layer and a bottom panel which are connected in sequence; the wall body comprises a first polyurethane sound insulation board, a wall body and a second polyurethane sound insulation board which are bonded in sequence, wherein the first polyurethane sound insulation board and the second polyurethane sound insulation board are respectively arranged on two sides of the wall body; the wall body is made of heat insulation bricks, each heat insulation brick comprises a brick body, a heat reflection layer arranged on the outer surface of the brick body and a cavity arranged in the brick body, and a high-temperature heat insulation material layer, a medium-temperature heat insulation material layer, a low-temperature heat insulation layer material and a heat absorption material layer are sequentially stacked in the cavity from outside to inside; the roof includes the downward thermal-insulated tile that sets up of a plurality of even slope, and the roof is equipped with the water drainage tank bottom, and the roofing corresponds the water drainage tank and is equipped with the water conservancy diversion ditch.
2. The dormitory building with heat insulation and temperature reduction according to claim 1, wherein: the phase change layer is a hollow plate type sealing structure, the plate type sealing structure is flat, and phase change materials with the temperature of 40-48 ℃ are arranged in the plate type sealing structure; the ventilation layer is a cavity formed by a support, and the support separates an upper panel, a waterproof layer and a phase change layer on the ventilation layer from a wallboard, a moisture-proof steam-proof layer and a bottom panel below the ventilation layer.
3. The dormitory building with heat insulation and temperature reduction according to claim 2, wherein: the thickness of the high-temperature heat insulation material layer is 10-15 mm, the thickness of the medium-temperature heat insulation material layer is 5-8 mm, and the thickness of the low-temperature heat insulation material layer is 3-5 mm.
4. A heat-insulating and cooling dormitory building according to claim 3, wherein: first polyurethane acoustic celotex board and second polyurethane acoustic celotex board deviate from one side of wall body and have all seted up the first trompil of a plurality of and second trompil, be provided with the strengthening rib in the first trompil, be provided with in the second trompil and inhale the sound cotton, and first trompil and second trompil intermittent type setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100549.9U CN211597851U (en) | 2020-01-17 | 2020-01-17 | Heat-insulation cooling dormitory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100549.9U CN211597851U (en) | 2020-01-17 | 2020-01-17 | Heat-insulation cooling dormitory building |
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| Publication Number | Publication Date |
|---|---|
| CN211597851U true CN211597851U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020100549.9U Expired - Fee Related CN211597851U (en) | 2020-01-17 | 2020-01-17 | Heat-insulation cooling dormitory building |
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|---|---|
| CN (1) | CN211597851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585537A (en) * | 2021-08-03 | 2021-11-02 | 广东万业建设集团有限公司 | Construction method of indoor sound insulation wall |
-
2020
- 2020-01-17 CN CN202020100549.9U patent/CN211597851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585537A (en) * | 2021-08-03 | 2021-11-02 | 广东万业建设集团有限公司 | Construction method of indoor sound insulation wall |
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Granted publication date: 20200929 |