CN115306258A - Stable and energy-saving outer window auxiliary frame mounting structure and construction method thereof - Google Patents
Stable and energy-saving outer window auxiliary frame mounting structure and construction method thereof Download PDFInfo
- Publication number
- CN115306258A CN115306258A CN202211031976.6A CN202211031976A CN115306258A CN 115306258 A CN115306258 A CN 115306258A CN 202211031976 A CN202211031976 A CN 202211031976A CN 115306258 A CN115306258 A CN 115306258A
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- Prior art keywords
- auxiliary frame
- frame
- energy
- saving
- window
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- 238000010276 construction Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000005187 foaming Methods 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 10
- 239000004814 polyurethane Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 30
- 229910000838 Al alloy Inorganic materials 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000012774 insulation material Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 239000013524 weatherproof sealant Substances 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/02—Base frames, i.e. template frames for openings in walls or the like, provided with means for securing a further rigidly-mounted frame; Special adaptations of frames to be fixed therein
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7641—Elements for window or door openings, or for corners of the building
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
- E06B1/58—Fastening frames to the border of openings or to similar contiguous frames by filling up the joints, e.g. by cementing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
- E06B1/60—Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Door And Window Frames Mounted To Openings (AREA)
Abstract
The invention discloses a stable and energy-saving outer window auxiliary frame installation structure and a construction method thereof, wherein the installation structure comprises a concrete outer windowsill wall, an auxiliary frame arranged on the concrete outer windowsill wall, an outer window system arranged on the auxiliary frame and an outer wall heat insulation system arranged on the outer side of the concrete outer windowsill wall; the auxiliary frame comprises a plastic steel energy-saving auxiliary frame fixedly arranged on the concrete outer windowsill wall and close to the outer side of the concrete outer windowsill wall and a square steel auxiliary frame fixedly arranged on the concrete outer windowsill wall close to the inner side of the plastic steel auxiliary frame, polyurethane foaming adhesive is arranged between the plastic steel auxiliary frame and the square steel auxiliary frame as well as between the concrete outer windowsill wall and the outer window system, and the outer window system is fixedly connected with the square steel auxiliary frame. The application can guarantee the stability of the external window system and has good energy-saving and heat-insulating effects.
Description
Technical Field
The invention relates to the technical field of external window installation, in particular to a stable and energy-saving external window auxiliary frame installation structure and a construction method thereof.
Background
At present, a common outer window lower opening subframe is a pure square steel subframe or a pure plastic steel energy-saving subframe, due to the energy-saving standard updating of an outer window, the existing pure square steel subframe cannot meet the standard requirements, but the pure plastic steel energy-saving subframe is made of plastic-wood materials, the rigidity is not enough, an outer window system cannot be stably fixed, and the outer window falling safety accident is easily caused.
Disclosure of Invention
The invention provides a stable energy-saving outer window auxiliary frame mounting structure and a construction method thereof, which can ensure the stability of an outer window system and have good energy-saving and heat-insulating effects.
The technical problem to be solved is that: due to the updating of the energy-saving standard of the external window, the existing pure square steel auxiliary frame method cannot meet the standard requirement, but the pure plastic steel energy-saving auxiliary frame is made of plastic-wood materials, so that the rigidity is not enough, the external window system cannot be stably fixed, and the safety accident that the external window falls is easily caused.
In order to solve the technical problem, the invention adopts the following technical scheme:
the invention relates to a stable and energy-saving mounting structure for an auxiliary frame of an external window, which comprises a concrete external windowsill wall, an auxiliary frame arranged on the concrete external windowsill wall, an external window system arranged on the auxiliary frame and an external wall heat-insulating system arranged on the outer side of the concrete external windowsill wall;
the auxiliary frame comprises a plastic steel energy-saving auxiliary frame fixedly arranged on the concrete outer windowsill wall and close to the outer side of the concrete outer windowsill wall and a square steel auxiliary frame fixedly arranged on the concrete outer windowsill wall close to the inner side of the plastic steel auxiliary frame, polyurethane foaming glue is arranged between the plastic steel auxiliary frame and the square steel auxiliary frame as well as between the concrete outer windowsill wall and the outer window system, and the outer window system is fixedly connected with the square steel auxiliary frame.
The invention relates to a stable and energy-saving mounting structure for an auxiliary frame of an outer window.
The invention relates to a stable and energy-saving mounting structure for an auxiliary frame of an external window, which is characterized in that an aluminum alloy window frame section comprises an external frame, an internal frame and a nylon bridge cut-off material for connecting the external frame and the internal frame, wherein the internal frame is fixedly connected with a square steel auxiliary frame.
The stable and energy-saving outer window auxiliary frame mounting structure is characterized in that a heat insulating material is filled between the outer auxiliary frame and the inner auxiliary frame.
The invention relates to a stable and energy-saving mounting structure of an auxiliary frame of an outer window.
The invention relates to a stable and energy-saving outer window subframe mounting structure, which comprises a waterproof mortar arranged on the outer side of a plastic steel energy-saving subframe, a bonding anti-crack mortar arranged on the outer side of a concrete outer windowsill wall, a heat insulation material arranged on the outer sides of the bonding anti-crack mortar and the waterproof mortar, a plastering anti-crack mortar arranged on the heat insulation material and a coating arranged on the plastering anti-crack mortar.
The stable and energy-saving mounting structure for the auxiliary frame of the external window is characterized in that the contact part of the coating and the external window system is sealed by sealant.
The invention relates to a stable and energy-saving mounting structure of an outer window auxiliary frame.
The invention relates to a construction method for a stable and energy-saving outer window auxiliary frame installation structure, which comprises the following steps:
step 1: firstly, mounting a plastic-steel energy-saving auxiliary frame on the outer side of a concrete outer windowsill wall by using a shooting nail, next, tightly abutting a square steel auxiliary frame against the plastic-steel energy-saving auxiliary frame, fixing the square steel auxiliary frame and the concrete outer windowsill wall by using a fixing bolt, pouring polyurethane foaming glue into a gap between the lower part of the auxiliary frame and the concrete windowsill wall, and brushing waterproof mortar on the plastic-steel energy-saving auxiliary frame;
and 2, step: installing an outer window system, fixing the inner auxiliary frame on the square steel auxiliary frame, and punching polyurethane foaming glue on a gap between the upper part of the auxiliary frame and the aluminum alloy window frame profile;
and 3, step 3: and installing an external wall heat insulation system, constructing bonding anti-crack mortar, a heat insulation material, plastering anti-crack mortar and a coating on the outer side of the concrete external windowsill wall from inside to outside in sequence, and finally applying weather-proof sealant on the joint of the external wall coating and the aluminum alloy window frame profile.
Compared with the prior art, the invention has the following beneficial effects:
the auxiliary square steel frame and the auxiliary plastic-steel energy-saving frame are installed below the outer window system, the outer window system is fixed through the auxiliary square steel frame, stable installation is guaranteed, the auxiliary plastic-steel energy-saving frame is used for avoiding a cold bridge phenomenon generated by direct contact between the outside and the auxiliary square steel frame, the problem of condensation generated due to the lower opening of the window with the inside and outside temperature difference is solved, and a good energy-saving and heat-insulating effect is achieved.
The invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the present invention.
Reference numerals:
1. concrete exterior sill walls; 2a, bonding anti-crack mortar; 2b, waterproof mortar; 3. a thermal insulation material; 4. coating anti-crack mortar; 5. coating; 6. fixing the bolt; 7. a square steel subframe; 8. a plastic steel energy-saving auxiliary frame; 9. polyurethane foam rubber; 10. sealing glue; 11. a thermal insulation material; 12. nylon bridge-cut material; 13. aluminum alloy window frame profiles; 14. a middle sealing rubber strip; 15. aluminium alloy window section bar.
Detailed Description
As shown in figure 1, the invention discloses a stable and energy-saving outer window auxiliary frame installation structure and a construction method thereof, wherein the installation structure comprises a concrete outer windowsill wall 1, an auxiliary frame arranged on the concrete outer windowsill wall 1, an outer window system arranged on the auxiliary frame and an outer wall heat insulation system arranged on the outer side of the concrete outer windowsill wall 1.
The auxiliary frame comprises a plastic-steel energy-saving auxiliary frame 8 fixedly arranged on the concrete outer windowsill wall 1 and close to the outer side of the concrete outer windowsill wall 1 and a square steel auxiliary frame 7 fixedly arranged on the concrete outer windowsill wall 1 close to the inner side of the plastic-steel energy-saving auxiliary frame 8, polyurethane foaming glue 9 is filled in a gap between the plastic-steel energy-saving auxiliary frame 8 and the square steel auxiliary frame 7 and between the concrete outer windowsill wall 1 and an outer window system, the outer window system is fixedly connected with the square steel auxiliary frame 7, cavities are arranged inside the plastic-steel energy-saving auxiliary frame 8 and the square steel auxiliary frame 7, and further, two cavities are arranged inside the plastic-steel energy-saving auxiliary frame 8 side by side.
The exterior window system comprises an aluminum alloy window frame section bar 13 and an aluminum alloy window sash section bar 15 matched with the aluminum alloy window frame section bar 13, wherein the aluminum alloy window frame section bar 13 comprises an outer auxiliary frame, an inner auxiliary frame and a nylon bridge cut-off material 12 for connecting the outer auxiliary frame and the inner auxiliary frame, and the inner auxiliary frame is connected with a square steel auxiliary frame 7 through a fixing bolt 6. The heat insulating material 11 is filled between the external frame and the internal frame. An intermediate sealing rubber strip 14 is arranged between the aluminum alloy window frame section 13 and the aluminum alloy window sash section 15, and the intermediate sealing rubber strip 14 is installed on the nylon bridge cut-off material 12.
The external wall heat insulation system comprises waterproof mortar 2b arranged on the outer side of the plastic steel energy-saving auxiliary frame 8, bonding anti-crack mortar 2a arranged on the outer side of the concrete external windowsill wall 1, heat insulation materials 3 arranged on the outer sides of the bonding anti-crack mortar 2a and the waterproof mortar 2b, plastering anti-crack mortar 4 arranged on the heat insulation materials 3 and coating 5 arranged on the plastering anti-crack mortar 4, wherein the joint of the coating 5 and an aluminum alloy window frame section 13 is sealed through weather-proof sealant 10.
Further, the square steel auxiliary frame 7 and the windowsill plate on the concrete outer windowsill wall 1 are filled with heat insulation materials 3 and sealed by sealant 10.
This application is through at the vice frame of installation square steel 7 and the energy-conserving vice frame of plastic steel 8 of exterior window system below, utilizes the fixed exterior window system of the vice frame of square steel 7, guarantees that the installation is firm to utilize the energy-conserving vice frame of plastic steel 8 to avoid the cold bridge phenomenon that external and the vice frame of square steel 7 direct contact produced, stopped because the dewfall problem that the inside and outside difference in temperature window lower port produced, played fine energy-conserving thermal-insulated effect.
The construction method comprises the following steps:
step 1: firstly, mounting a plastic-steel energy-saving auxiliary frame 8 on the outer side of a concrete outer windowsill wall 1 by using a nail, next, tightly abutting a square steel auxiliary frame 7 against the plastic-steel energy-saving auxiliary frame 8, fixing the square steel auxiliary frame 7 and the concrete outer windowsill wall 1 by using a fixing bolt 6, pouring polyurethane foaming glue 9 into a gap between the lower part of the auxiliary frame and the concrete windowsill wall, and brushing waterproof mortar 2b on the plastic-steel energy-saving auxiliary frame 8;
and 2, step: installing an outer window system, fixing an inner auxiliary frame on a square steel auxiliary frame 7, and punching polyurethane foaming glue 9 on a gap between the upper part of the auxiliary frame and an aluminum alloy window frame section 13;
and 3, step 3: and (3) installing an external wall heat insulation system, constructing bonding anti-crack mortar 2a, a heat insulation material 3, plastering anti-crack mortar 4 and a coating 5 on the outer side of the concrete external windowsill wall 1 from inside to outside in sequence, and finally, drilling weather-proof sealant 10 at the joint of the external wall coating 5 and the aluminum alloy window frame profile 13.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. The utility model provides a vice frame mounting structure of firm energy-conserving exterior window which characterized in that: the external window system comprises a concrete external windowsill wall (1), an auxiliary frame arranged on the concrete external windowsill wall (1), an external window system arranged on the auxiliary frame and an external wall heat insulation system arranged on the outer side of the concrete external windowsill wall (1);
the auxiliary frame comprises a plastic steel energy-saving auxiliary frame (8) fixedly arranged on the concrete outer windowsill wall (1) and close to the outer side of the concrete outer windowsill wall (1) and a square steel auxiliary frame (7) fixedly arranged on the concrete outer windowsill wall (1) close to the inner side of the plastic steel energy-saving auxiliary frame (8), polyurethane foaming glue (9) is arranged between the plastic steel energy-saving auxiliary frame (8) and the square steel auxiliary frame (7) and between the concrete outer windowsill wall (1) and an outer window system, and the outer window system is fixedly connected with the square steel auxiliary frame (7).
2. The stable and energy-saving outer window subframe mounting structure as claimed in claim 1, wherein: the outer window system comprises an aluminum alloy window frame section (13) and an aluminum alloy window sash section (15) matched with the aluminum alloy window frame section (13), and the aluminum alloy window frame section (13) is fixedly connected with the square steel auxiliary frame (7).
3. The stable and energy-saving outer window auxiliary frame installation structure as claimed in claim 2, wherein: the aluminum alloy window frame section bar (13) comprises an external frame, an internal frame and a nylon bridge cut-off material (12) for connecting the external frame and the internal frame, and the internal frame is fixedly connected with the square steel auxiliary frame (7).
4. The stable and energy-saving outer window auxiliary frame installation structure as claimed in claim 3, wherein: and a heat insulating material (11) is filled between the external frame and the internal frame.
5. The stable and energy-saving outer window auxiliary frame installation structure as claimed in claim 3, wherein: and a middle sealing rubber strip (14) is arranged between the aluminum alloy window frame section (13) and the aluminum alloy window sash section (15).
6. The stable and energy-saving outer window auxiliary frame installation structure as claimed in claim 1, wherein: the external wall heat insulation system comprises waterproof mortar (2 b) arranged on the outer side of the plastic steel energy-saving auxiliary frame (8), bonding anti-crack mortar (2 a) arranged on the outer side of the concrete external windowsill wall (1), heat insulation materials (3) arranged on the outer sides of the bonding anti-crack mortar (2 a) and the waterproof mortar (2 b), plastering anti-crack mortar (4) arranged on the heat insulation materials (3) and paint (5) arranged on the plastering anti-crack mortar (4).
7. The stable and energy-saving outer window subframe mounting structure as claimed in claim 6, wherein: the contact part of the coating (5) and the external window system is sealed by a sealant (10).
8. The stable and energy-saving outer window subframe mounting structure as claimed in claim 1, wherein: and a heat insulation material (3) is filled between the square steel auxiliary frame (7) and the windowsill plate on the concrete outer windowsill wall (1) and is sealed by a sealant (10).
9. A method for constructing a stable energy-saving outer window subframe installation structure of any one of claims 1 to 8, which is characterized by comprising the following steps:
step 1: firstly, mounting a plastic-steel energy-saving auxiliary frame (8) on the outer side of a concrete outer windowsill wall (1) by utilizing a shooting nail, then tightly abutting a square steel auxiliary frame (7) against the plastic-steel energy-saving auxiliary frame (8) and fixing the square steel auxiliary frame (7) and the concrete outer windowsill wall (1) by utilizing a fixing bolt (6), punching polyurethane foaming glue (9) in a gap between the lower part of the auxiliary frame and the concrete windowsill wall, and brushing waterproof mortar (2 b) on the plastic-steel energy-saving auxiliary frame (8);
step 2: installing an outer window system, fixing an inner attached frame on a square steel auxiliary frame (7), and punching polyurethane foaming glue (9) on a gap between the upper part of the auxiliary frame and an aluminum alloy window frame profile (13);
and step 3: and (2) installing an external wall heat insulation system, constructing bonding anti-crack mortar (2 a), a heat insulation material (3), finishing anti-crack mortar (4) and a coating (5) on the outer side of the concrete external windowsill wall (1) from inside to outside in sequence, and finally applying weather-proof sealant (10) on the joint of the external wall coating (5) and the aluminum alloy window frame section (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031976.6A CN115306258A (en) | 2022-08-26 | 2022-08-26 | Stable and energy-saving outer window auxiliary frame mounting structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031976.6A CN115306258A (en) | 2022-08-26 | 2022-08-26 | Stable and energy-saving outer window auxiliary frame mounting structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115306258A true CN115306258A (en) | 2022-11-08 |
Family
ID=83864694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211031976.6A Pending CN115306258A (en) | 2022-08-26 | 2022-08-26 | Stable and energy-saving outer window auxiliary frame mounting structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115306258A (en) |
-
2022
- 2022-08-26 CN CN202211031976.6A patent/CN115306258A/en active Pending
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