CN211143385U - Heat preservation building wall structure - Google Patents
Heat preservation building wall structure Download PDFInfo
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- CN211143385U CN211143385U CN201921837331.5U CN201921837331U CN211143385U CN 211143385 U CN211143385 U CN 211143385U CN 201921837331 U CN201921837331 U CN 201921837331U CN 211143385 U CN211143385 U CN 211143385U
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- wall structure
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- 238000004321 preservation Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 238000009413 insulation Methods 0.000 claims abstract description 77
- 239000002131 composite material Substances 0.000 claims abstract description 73
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 67
- 239000003063 flame retardant Substances 0.000 claims description 27
- 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 25
- 239000011247 coating layer Substances 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 5
- 229920001651 Cyanoacrylate Polymers 0.000 description 4
- 239000004830 Super Glue Substances 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 229920001971 elastomer Polymers 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
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- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Abstract
The utility model relates to a heat-insulating building wall structure, which comprises a steel skeleton body, wherein the upper side and the lower side of the steel skeleton body are respectively connected with an outer composite plate and an inner composite plate, the steel skeleton body comprises a plurality of unit steel skeletons which are arranged along a straight line, and joints are integrally formed at the two ends of the unit steel skeletons; an I-shaped connecting piece connected with the joint is connected between the adjacent unit steel frameworks; the outer composite board comprises a heat-insulating board layer; a plurality of heat preservation cavities are formed in the heat preservation plate layer; heat-insulating particles are filled between the adjacent heat-insulating cavities; the inner composite board comprises a sound insulation board layer, and a plurality of sound insulation chambers are formed in the sound insulation board layer; the sound-proof chamber is filled with sound-absorbing balls. The utility model discloses have the effect that guarantees better thermal insulation performance and have sound insulation performance simultaneously concurrently. The problem of building wall structure heat preservation sound insulation performance relatively poor is solved.
Description
Technical Field
The utility model belongs to the technical field of the housing construction technique and specifically relates to a heat preservation building wall structure is related to.
Background
The steel structure building is widely applied to the technical field of house building because of the advantages of light building weight, high strength, short construction period, low investment cost, convenient building moving and strong recyclability. However, the existing wall body of the steel structure building has poor heat insulation effect due to unreasonable structural design, and brings inconvenience to people in residence or work when the temperature is low in winter. The heat insulating material can collect the excessive heat, release stably in due time, has small gradient change, effectively reduces the loss amount, and can play a balance role in room temperature trend and winter heat insulation. The novel building wall structure formed by the steel structure composite heat-insulating material has the advantages of the two and is widely developed and utilized by scientific researchers of all countries.
Chinese patent publication No. CN201433483Y discloses a three-layer heat-insulating building wall structure. The two sides of the steel frame are respectively provided with a heat insulation wall plate, the distance between the two heat insulation wall plates is 100-120 mm, the heat insulation wall plates are formed by filling heat insulation materials between two composite material plates, a through rib is arranged between the two composite material plates, and the heat insulation wall plates are connected with the steel frame through special drilling nails at the through rib. The steel frame is C-shaped steel, channel steel, I-shaped steel or square steel, the thickness of the composite material plate is 6-10 mm, the heat insulation material is a flame-retardant polyphenyl plate, the thickness of the heat insulation material is 30-80 mm, and the distance between the ribs of the whole body is 20-40 cm.
The heat-insulating material is filled between the composite plates in the prior art, and the problem of poor heat-insulating and sound-insulating effects exists because the heat-insulating material is limited in uniform heat-insulating performance and only has upper and lower interfaces to absorb and convert the energy carried by the sound.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a better heat preservation building wall structure of heat preservation sound insulation effect.
The method is realized by the following technical scheme: a heat-insulating building wall structure comprises a steel skeleton body, wherein the upper side and the lower side of the steel skeleton body are respectively connected with an outer composite plate and an inner composite plate, the steel skeleton body comprises a plurality of unit steel skeletons which are arranged along a straight line, and joints are integrally formed at two ends of the unit steel skeletons; an I-shaped connecting piece connected with the joint is connected between the adjacent unit steel frameworks; the outer composite board comprises a heat-insulating board layer; a plurality of heat preservation cavities are formed in the heat preservation plate layer; heat-insulating particles are filled between the adjacent heat-insulating cavities; the inner composite board comprises a sound insulation board layer, and a plurality of sound insulation chambers are formed in the sound insulation board layer; the sound-proof chamber is filled with sound-absorbing balls.
By adopting the technical scheme, the heat insulation plate layers of the plurality of heat insulation cavities ensure that a good wall has good heat insulation performance; the inner composite board of the soundproof room containing a plurality of sound absorption balls is endowed with a good soundproof function; the unit steel skeleton is assembled into the steel skeleton body, makes things convenient for the wall body to build the installation, makes the utility model discloses has good heat preservation sound insulation effect.
The utility model discloses further set up to: the outer composite plate and the inner composite plate are connected with the steel skeleton body through screws.
By adopting the technical scheme, the outer composite plate and the inner composite plate are tightly connected to the surface layer of the steel framework body through the screws, so that the outer composite plate and the inner composite plate are not easy to fall off and deviate to influence the function of the outer composite plate and the inner composite plate.
The utility model discloses further set up to: the upper surface and the lower surface of the steel skeleton body are fixedly connected with a plurality of plate joints; the outer composite plate and the inner composite plate are both provided with mounting holes for the plate connectors to penetrate through; a threaded hole is formed in the center of the plate joint in a penetrating manner; and fixing screws for fixing the outer composite plate and the inner composite plate on the steel framework body penetrate through the threaded holes.
Through adopting above-mentioned technical scheme, set screw runs through the screw hole in outer composite sheet, interior composite sheet and the panel joint respectively and closely cooperates continuously, and closely connect outer composite sheet, interior composite sheet on the steel skeleton body prevents that it from breaking away from the performance that influences heat preservation sound insulation function.
The utility model discloses further set up to: the heat preservation plate layer is adhered to the steel skeleton body; the surface of the heat-insulation plate layer, which is far away from the steel framework body, is connected with a reinforcing plate layer; the upper part of the reinforcing plate layer is coated with a heat insulation coating layer.
Through adopting above-mentioned technical scheme, the enhancement sheet layer that the coating has the adiabatic dope layer has the efficient isolation effect to external heat source, avoids the heat preservation sheet layer to receive too much heat energy transfer to the steel skeleton body, arouses to enlarge steel skeleton body inner structure defect even, causes the wall body to support the intensity and descends and cause the incident.
The utility model discloses further set up to: and a weather-resistant protective layer is arranged on the surface of the heat-insulating coating layer.
By adopting the technical scheme, the weather-resistant protective layer has good weather resistance and corrosion resistance, reduces the damage of outside weather to the heat insulation coating layer, improves the corrosion resistance of the heat insulation coating layer, protects the heat insulation coating layer to play a heat insulation function, effectively reduces the temperature of the outer wall, protects the internal steel skeleton structure and prolongs the service life of the wall body.
The utility model discloses further set up to: the sound insulation plate layer is adhered to the steel skeleton body; an inner heat insulation plate is bonded on the surface of the sound insulation plate layer, which is far away from the steel framework body; the surface of the inner heat-insulation board, which is far away from the sound-insulation board layer, is bonded with a flame-retardant board layer; the surface of the flame-retardant plate layer is coated with a flame-retardant coating layer.
By adopting the technical scheme, the internal thermal insulation board emits redundant heat in summer to reduce the room temperature, and releases stored energy in winter to improve the room temperature. The flame-retardant plate layer is mainly used for preventing the whole structure from being damaged by burning of the plate and causing casualties caused by fire disasters.
The utility model discloses further set up to: the flame-retardant coating layer is provided with a protective film layer.
By adopting the technical scheme, the protective film layer has good weather resistance and corrosion resistance, the damage of outside weather to the flame-retardant coating layer is reduced, the corrosion resistance of the flame-retardant coating layer is improved, and the flame-retardant coating layer is protected to play a flame-retardant and fireproof function.
The utility model discloses further set up to: the sound insulation chambers on the two sides of the sound absorption ball are respectively filled with a polymer absorber and a polymer damper.
Through adopting above-mentioned technical scheme, the polymer absorbing material and the polymer damping material effective absorption of the intussuseption of soundproof room intussuseption brought the energy, make the utility model discloses good syllable-dividing effect has.
To sum up, the utility model has the advantages of it is following:
1. through the heat preservation sheet layer of outer composite sheet, guaranteed that good wall body has good thermal insulation performance.
2. The steel framework bodies are assembled by the unit steel frameworks, so that the wall can be conveniently and quickly built and installed.
3. And the sound insulation plate layer of the inner composite plate endows the wall with a good sound insulation function.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the insulation wythe.
Fig. 3 is a cross-sectional view of the acoustical panel layer.
Fig. 4 is a cross-sectional view of an i-shaped connector.
Fig. 5 is an enlarged view at a in fig. 1.
In the figure, 1, a steel skeleton body; 11. a unit steel skeleton; 12. a joint; 13. a plate joint; 131. a threaded hole; 132. a set screw; 14. mounting holes; 2. an outer composite panel; 21. a weather-resistant protective layer; 22. a thermal insulation coating layer; 23. a reinforcing ply; 24. a heat-insulating board layer; 241. a heat preservation cavity; 242. heat preservation particles; 3. an inner composite panel; 31. a sound insulation board layer; 311. a sound-proof chamber; 312. a sound absorbing ball; 32. an inner heat insulation plate; 33. a flame-retardant sheet layer; 34. a flame retardant coating layer; 35. a protective film layer; 4. a polymeric absorber; 40. a polymeric damping body; 5. an I-shaped connecting piece; 51. a connecting bolt; 511. a lower support block; 512. a middle support member; 513. an upper support block; 514. a joint groove; 52. a first through hole; 53. a countersunk hole; 54. a second through hole; 55. and connecting the bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a heat preservation building wall structure, including steel skeleton body 1, steel skeleton body 1 includes a plurality of unit steel skeleton 11 along the inline. The upper side and the lower side of the steel framework body 1 are respectively connected with an outer composite plate 2 and an inner composite plate 3.
Referring to fig. 1 and 2, the outer composite panel 2 includes an insulation panel layer 24 connected to the steel skeleton body 1, and the insulation panel layer 24 is preferably a polyurethane panel or a polystyrene panel. In order to improve the overall heat insulation performance, three heat insulation cavities 241 are formed in the heat insulation board layer 24, the upper heat insulation cavity 241 and the lower heat insulation cavity 241 are kept in a hollow state, and heat insulation particles 242 are filled in the middle heat insulation cavity 241 at intervals. The insulating particles 242 are preferably rubber powder polyphenyl particles or expanded perlite. One side of the heat preservation plate layer 24, which is in contact with the steel framework body 1, is coated with super glue to complete the tight connection with the steel framework body 1. The surface of the heat insulation plate layer 24 departing from the steel framework body 1 is connected with a reinforcing plate layer 23 through coating super glue, and the reinforcing plate layer 23 is preferably made of a hard foam polyurethane heat insulation plate or a silicate heat insulation material. The surface of the reinforcing plate layer 23, which is far away from the steel framework body 1, is coated with a heat insulation coating layer 22, and the heat insulation coating layer 22 is preferably selected from novel A-grade inorganic fireproof heat insulation mortar and foamed cement. The surface of the heat insulation coating layer 22 is provided with a weather-resistant protective layer 21, and the weather-resistant protective layer 21 is preferably a PET composite film.
Referring to fig. 3, in conjunction with fig. 1, the inner composite panel 3 includes a soundproof panel layer 31 connected to the steel skeleton body 1, and the soundproof panel layer 31 preferably employs a polyurethane panel, a polystyrene panel, and a silicate heat insulating material. The sound insulation plate layer 31 is coated with super glue on the side contacting with the steel framework body 1 to complete the tight connection with the steel framework body 1. The soundproof plate layer 31 is formed with three soundproof chambers 311; the middle soundproof room 311 is filled with a hollow sound absorbing ball 312. The soundproof chambers 311 on both sides of the sound absorbing ball 312 are filled with the polymer absorbent body 4 and the polymer damper body 40, respectively. The polymer absorbing material body 4 is made of a polymer absorbing material, and the polymer absorbing material is preferably a polystyrene foam material or a polyurethane foam material, has good absorbing and converting capacity on sound wave, and can achieve a good sound insulation effect. The polymer damping material body 40 is made of a polymer damping material, preferably an interpenetrating polymer network IPR material or a polyurethane foam material, and has good absorption and conversion capability on sound wave capability and good sound insulation effect. The surface of the sound insulation plate layer 31 departing from the steel framework body 1 is connected with an inner heat insulation plate 32 through coating strong glue, and the inner heat insulation plate 32 is preferably an EPS foam plate, a ceramic heat insulation plate or an XPS extruded sheet. The surface of the inner heat-insulation plate 32, which is far away from the steel framework body 1, is connected with a flame-retardant plate layer 33 by coating a super glue, and the flame-retardant plate layer 33 is preferably a phenolic resin plate with flame retardance, heat insulation and sound insulation. The surface of the flame-retardant plate layer 33 is coated with a flame-retardant coating layer 34, and the flame-retardant coating layer 34 is preferably an emulsion type intumescent fire-retardant coating. The flame retardant coating layer 34 is provided with a protective film layer 35, and the protective film layer 35 is preferably a PET composite film.
Referring to fig. 4, in combination with fig. 1, the joints 12 are integrally formed at both ends of the unit steel frame 11, and the second through hole 54 is formed through the side surface of the joint 12. An I-shaped connecting piece 5 matched with the joint 12 is connected between the adjacent unit steel frameworks 11. The I-shaped connecting piece 5 comprises a lower supporting block 511, a middle supporting piece 512 is fixedly connected to the middle of the lower supporting block 511 vertically upwards, and an upper supporting block 513 which is parallel to the lower supporting block 511 and has the same size is fixedly connected to the middle supporting piece 512. The upper support block 513, the middle support 512 and the lower support block 511 are integrally formed with a joint groove 514 for fitting the joint 12. The fitting of the joint 12 and the joint groove 514 achieves the preliminary connection of the adjacent unit steel frames 11. The lower supporting block 511 is provided with a first through hole 52 in a penetrating way; the upper supporting block 513 is provided with a counter sink 53. The central axes of the first through hole 52, the counter sink 53 and the second through hole 54 coincide with each other, and a connecting bolt 55 is connected to the counter sink 53, the second through hole 54 and the first through hole 52 in a threaded manner in sequence, so that the stable connection between the adjacent unit steel frames 11 is completed.
Referring to fig. 5, in conjunction with fig. 1, an outer composite plate 2 and an inner composite plate 3 are coupled to a steel skeleton body 1 by screws. Preferably, the nails are connected as follows: the upper surface and the lower surface of the steel framework body 1 are fixedly connected with a plurality of plate joints 13; the outer composite board 2 and the inner composite board 3 are both provided with mounting holes 14 for the board joints 13 to penetrate through; the center of the plate joint 13 is provided with a threaded hole 131 in a penetrating way; a fixing screw 132 for fixing the outer composite plate 2 and the inner composite plate 3 to the steel frame body 1 is inserted into the screw hole 131. The fixing screw 132 penetrates through the outer composite board 2 to be matched and connected with the threaded hole 131 of the board joint 13 of the steel skeleton body 1, so that the outer composite board 2 is more tightly connected with the steel skeleton body 1. The fixing screw 132 penetrates through the inner composite plate 3 to be matched and connected with the threaded hole 131 of the plate joint 13 of the steel skeleton body 1, so that the inner composite plate 3 is more tightly connected with the steel skeleton body 1.
The preparation of the heat-insulating building wall body comprises the following steps:
the first step is as follows: assembling the steel framework body 1: the joints 12 of the adjacent unit steel frames 11 are embedded and connected with the joint grooves 514 on the two sides of the I-shaped connecting piece 5; the connecting bolt 55 penetrates through the I-shaped connecting piece 5 and the joint 12 of the unit steel frameworks 11, and the stable connection of the adjacent unit steel frameworks is realized. The connecting unit steel skeleton 11 is assembled into the steel skeleton body 1 in this way.
The second step is that: the sheet layer assembly of inner composite sheet 3 (now inner composite sheet 3 uncoated paint) and outer composite sheet 2 (now outer composite sheet 2 uncoated paint): the plate joints 13 on the upper surface and the lower surface of the steel framework body 1 are embedded and connected with the mounting holes 14 of the outer composite plate 2 and the inner composite plate 3 to complete the primary combination. The fixing screw 132 penetrates through the inner composite plate 3 and is in threaded connection with the threaded hole 131 of the plate joint 13 of the steel framework body 1; the fixing screw 132 penetrates through the outer composite board 2 to be in threaded connection with the threaded hole 131 of the board joint 13 of the steel skeleton body 1, so that the assembly of the board layers of the inner composite board and the outer composite board and the steel skeleton body 1 is realized.
The third step: emulsion type intumescent fire retardant coating is coated on the surface of a flame retardant plate layer 33 in the inner composite plate 3 to form a flame retardant coating layer 34, and glue is spread outside the flame retardant coating layer 34 and is adhered to a PET composite film to form a protective film layer 35; a level of inorganic fireproof heat-preservation mortar of enhancement plate layer 23 surface coating in outer composite sheet 2 forms adiabatic dope layer 22, and adiabatic dope layer 22 outside spreading glue glues glutinous PET complex film and forms resistant protective layer 21 of waiting, has realized the structure of heat preservation building wall.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a heat preservation building wall structure, includes steel skeleton body (1), both sides are connected with outer composite sheet (2) and interior composite sheet (3) respectively about steel skeleton body (1), its characterized in that: the steel skeleton body (1) comprises a plurality of unit steel skeletons (11) which are arranged along a straight line, and joints (12) are integrally formed at two ends of each unit steel skeleton (11); an I-shaped connecting piece (5) connected with the joint (12) is connected between the adjacent unit steel frameworks (11); the outer composite board (2) comprises a heat-insulating board layer (24); a plurality of heat preservation cavities (241) are formed in the heat preservation plate layer (24); heat-insulating particles (242) are filled between the adjacent heat-insulating cavities (241); the inner composite plate (3) comprises a sound insulation plate layer (31), and a plurality of sound insulation chambers (311) are formed in the sound insulation plate layer (31); the sound insulation chamber (311) is filled with a sound absorption ball (312).
2. A thermal insulating building wall structure according to claim 1, wherein: the outer composite plate (2) and the inner composite plate (3) are connected with the steel framework body (1) through screws.
3. A thermal insulating building wall structure according to claim 2, wherein: the upper surface and the lower surface of the steel framework body (1) are fixedly connected with a plurality of plate joints (13); the outer composite plate (2) and the inner composite plate (3) are both provided with mounting holes (14) for the plate joints (13) to penetrate through; a threaded hole (131) penetrates through the center of the plate joint (13); and fixing screws (132) for fixing the outer composite plate (2) and the inner composite plate (3) on the steel framework body (1) are arranged in the threaded holes (131) in a penetrating manner.
4. A thermal insulating building wall structure according to claim 1, wherein: the heat-insulation plate layer (24) is adhered to the steel framework body (1); the surface of the heat-preservation plate layer (24) departing from the steel framework body (1) is connected with a reinforcing plate layer (23); the upper part of the reinforcing plate layer (23) is coated with a heat insulation coating layer (22).
5. An insulated building wall structure according to claim 4, characterized in that: and a weather-resistant protective layer (21) is arranged on the surface of the heat insulation coating layer (22).
6. A thermal insulating building wall structure according to claim 1, wherein: the sound insulation plate layer (31) is adhered to the steel skeleton body (1); an inner heat-insulating plate (32) is bonded on the surface of the sound-insulating plate layer (31) departing from the steel framework body (1); the surface of the inner heat-insulation board (32) departing from the sound-insulation board layer (31) is bonded with a flame-retardant board layer (33); the surface of the flame-retardant plate layer (33) is coated with a flame-retardant coating layer (34).
7. An insulated building wall structure according to claim 6, characterized in that: and a protective film layer (35) is arranged on the surface of the flame retardant coating layer (34).
8. A thermal insulating building wall structure according to claim 1, wherein: the sound insulation chambers (311) at two sides of the sound absorption ball (312) are respectively filled with a polymer absorber (4) and a polymer damper (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921837331.5U CN211143385U (en) | 2019-10-26 | 2019-10-26 | Heat preservation building wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921837331.5U CN211143385U (en) | 2019-10-26 | 2019-10-26 | Heat preservation building wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211143385U true CN211143385U (en) | 2020-07-31 |
Family
ID=71771578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921837331.5U Expired - Fee Related CN211143385U (en) | 2019-10-26 | 2019-10-26 | Heat preservation building wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211143385U (en) |
-
2019
- 2019-10-26 CN CN201921837331.5U patent/CN211143385U/en not_active Expired - Fee Related
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