CN211313949U - Passive low-energy-consumption building door and window - Google Patents

Passive low-energy-consumption building door and window Download PDF

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Publication number
CN211313949U
CN211313949U CN201921409901.0U CN201921409901U CN211313949U CN 211313949 U CN211313949 U CN 211313949U CN 201921409901 U CN201921409901 U CN 201921409901U CN 211313949 U CN211313949 U CN 211313949U
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China
Prior art keywords
door
window
frame body
glass
fan blade
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CN201921409901.0U
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陈涛
陈立果
梁仕龙
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Beijing Construction Industry Yinlai Frp Products Co ltd
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Beijing Construction Industry Yinlai Frp Products Co ltd
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    • 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
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/249—Glazing, e.g. vacuum glazing
    • 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
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22—Glazing, e.g. vaccum glazing

Abstract

The utility model relates to a passive low energy consumption building door and window, a heat preservation layer is filled between a glass fiber reinforced plastic door and window sill and a solid wall; an aerogel heat insulation sheet is arranged between the door and window frame body and the glass fiber reinforced plastic door and window sill and is fixedly connected with the door and window frame body, and waterproof sealant is coated at the joint of the edges of the inner surface and the outer surface of the glass fiber reinforced plastic door and window frame body; the door and window frame body is provided with a door and window fan blade opening, the door and window opening and closing fan blade frame body is hinged with one end face of the door and window fan blade opening, and a sealing rubber strip is fixed on the peripheral side face of the door and window opening and closing fan blade frame body; the composite vacuum glass is embedded in the door and window opening and closing leaf frame body, and waterproof sealant is coated at the joint of the inner surface edge and the outer surface edge of the door and window opening and closing leaf frame body. The utility model discloses waterproof sealant and joint strip are adopted to many places, have increased door and window's gas tightness, have prevented that the air convection energy is mutual to adopt compound vacuum glass can play sound insulation, thermal-insulated better, and then obtain superior heat insulating ability, heat-proof quality, gas tightness, water proofness, sound insulation.

Description

Passive low-energy-consumption building door and window
Technical Field
The utility model relates to a building door and window technical field, specificly relate to a low energy consumption building door and window of passive form.
Background
With the idea of energy conservation and environmental protection going deep into the mind of people, the development trend of energy conservation and environmental protection is continuously promoted, and the consciousness of people on energy conservation, environmental protection and low energy consumption of the residential environment of buildings is also continuously strengthened, and is accompanied with the construction and development of passive buildings. The passive house is characterized in that the building envelope structure is optimized by adopting an advanced energy-saving design concept and a construction technology, the heat preservation, heat insulation and air tightness of the building are improved to the maximum extent, and the heat (cold) in the indoor waste gas is recycled by a high-efficiency heat (cold) recycling device of a fresh air system, so that the heating and refrigerating requirements of the building are obviously reduced. On the basis, the passive building also realizes comfortable temperature, humidity and lighting environment by effectively utilizing natural ventilation, natural lighting, solar radiation and indoor non-heating heat sources for heating, thereby reducing the dependence on an active mechanical heating or refrigerating system to the maximum or completely eliminating the facilities. The passive ultra-low energy consumption building is a building which is high in energy efficiency and comfortable to live and is developed rapidly in recent years internationally, is the most important way for coping with climate change, energy conservation and emission reduction under the background of increasingly serious energy crisis and environmental pollution, and represents the development direction of energy conservation of buildings in the world. Global climate change is the most severe environmental and development challenge faced by human in the world and in the long term in the future, and buildings are one of the most important fields of energy conservation, emission reduction and climate change response.
The existing traditional door and window has a too simple structure and heat preservation performance; heat insulation; air tightness; water tightness; and the sound insulation performance and other properties are poor, and the requirements of passive building construction cannot be met.
Therefore, there is a need for a passive low-energy-consumption building door/window with good heat preservation, heat insulation, air tightness, water tightness and sound insulation to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a passive form low energy consumption building door and window that heat preservation nature, heat-proof quality, gas tightness, water proofness and sound insulation are good.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
passive form low energy consumption building door and window includes: the glass fiber reinforced plastic door and window sill, the door and window frame body, the door and window opening and closing fan blade frame body and the composite vacuum glass are connected with the solid wall;
an insulating layer is filled between the glass fiber reinforced plastic door and window sill and the solid wall;
an aerogel heat insulation sheet is arranged between the door and window frame body and the glass fiber reinforced plastic door and window sill and is fixedly connected with the door and window frame body, and waterproof sealant is coated at the joint of the glass fiber reinforced plastic door and window sill and the inner and outer surface edges of the door and window frame body;
the door and window frame body is provided with a door and window fan blade opening, the door and window opening and closing fan blade frame body is hinged with one end face of the door and window fan blade opening, and a sealing rubber strip is fixed on the peripheral side face of the door and window opening and closing fan blade frame body;
the composite vacuum glass is embedded in the door and window opening and closing leaf frame body, and waterproof sealant is coated at the joint of the inner surface edge and the outer surface edge of the composite vacuum glass and the door and window opening and closing leaf frame body.
The utility model discloses can install door and window on the glass steel door and window sill that has the effect of making level, water-proof effects, better leakproofness and pleasing to the eye effect, glass steel door and window sill has solved the contact problem of door and window bottom and entity wall, fills the heat preservation and can play the heat preservation effect better, and glass steel door and window sill is different from the ceramic tile layer or brick layer or other screed-coats, and its good quality outward appearance is level, can not produce infiltration, the problem of leaking;
the utility model adopts waterproof sealant and sealing rubber strips at multiple places, increases the air tightness of doors and windows, prevents the interaction of air convection energy, and adopts the composite vacuum glass to better play the roles of sound insulation and heat insulation, thereby obtaining superior heat preservation, heat insulation, air tightness, water tightness and sound insulation;
the utility model discloses a to the comprehensive optimization of whole window system, control the heat transfer coefficient of heat transfer of whole window: the heat transfer coefficient U of the whole door and window is less than or equal to 0.8W/(m)2K), airtightness: the average air exchange times of the building per hour are lower than 0.6 under the condition that the indoor and outdoor positive and negative pressure difference is 50 Pa. The design of the low-energy-consumption environment-friendly door and window is realized, and the high market value and the high popularization value are achieved.
Further, the door and window frame body comprises a groove for placing the sealing rubber strip, a heat insulation cavity and a limiting groove for fixing a rubber sheet; and a supporting structure is arranged in the heat insulation cavity.
Further, the support structure includes: the vertical supporting steel plates and the horizontal supporting steel plates are arranged in a cross mode, two ends of each vertical supporting steel plate are respectively fixedly connected to the upper cavity wall and the lower cavity wall of the heat insulation cavity, and two ends of each horizontal supporting steel plate are respectively fixedly connected to the left cavity wall and the right cavity wall of the heat insulation cavity.
Further, the heat insulation cavity is divided into a plurality of independent cavities by the vertical supporting steel plates and the transverse supporting steel plates, and foaming agents are filled in the cavities.
Further, the door and window opening and closing fan blade frame body comprises a clamping groove used for clamping and embedding the composite vacuum glass, a door and window opening and closing fan blade frame body cavity and a pressing strip, the pressing strip is clamped and embedded in one side of the clamping groove, the composite vacuum glass is located in the clamping groove and the pressing strip, and foaming agents are filled in the door and window opening and closing fan blade frame body cavity.
Further, the foaming agent is a polyurethane foaming agent.
By adopting the technical scheme, the door and window frame body and the door and window opening and closing fan blade frame body adopt the frame body indoor glass fiber reinforced plastic section bar, the deformation of the door and the window is reduced by the increase of the thickness of the section bar and the supporting structure, and the stability is improved; the door and window frame body heat insulation cavity is arranged, so that the heat insulation performance, the heat insulation performance and the air tightness of the door and window frame body are greatly improved.
Further, the composite vacuum glass comprises vacuum glass, the vacuum glass comprises two glass substrates, the edges of the two glass substrates are hermetically connected through glass brazing solder, a vacuum layer is formed between the two glass substrates, and the two glass substrates are separated by a support;
laminated glass is compounded on one surface of the vacuum glass, and the laminated glass and the vacuum glass are compounded through a film layer;
and hollow glass is compounded on the other surface of the vacuum glass, and an air layer is formed between the vacuum glass and the hollow glass.
By adopting the technical scheme, the laminated glass and the hollow glass are respectively compounded on the two surfaces of the vacuum glass, so that the asymmetrical structure of the combination of the laminated glass, the vacuum glass and the hollow glass is produced, wherein the laminated glass and the vacuum glass are compounded through the film layer, and an air layer is formed between the vacuum glass and the hollow glass; the asymmetrical structure is formed, so that the resonance of the whole glass is inhibited and weakened, and the sound insulation quantity of the whole glass sheet in a low-frequency area is increased; the vacuum glass, the air layer and the hollow glass enable the whole glass to be a double-layer structure, and the air layer plays a role of an elastic layer of the flexible cushion at the moment, so that more sound energy is consumed; the composite structure can reduce the anastomosis resonance of sound waves in a critical frequency control area and increase high-frequency sound insulation. And the vacuum glass has good heat insulation performance.
Further, the thickness of an air layer between the vacuum glass and the hollow glass is more than or equal to 12 mm; the thickness of the film layer between the laminated glass and the vacuum glass is more than or equal to 0.76 mm; the two glass substrates of the vacuum glass are made of toughened glass, so that the spacing between the supports of the vacuum glass is more than or equal to 45 mm.
In addition, in the conventional common vacuum glass, the distance between the supports is 25-30 mm, so that the number of the supports per square meter of vacuum glass is 1100-1600. These supports form a sound bridge through which sound is transmitted, thereby limiting the sound insulation properties of the vacuum glass.
Therefore, the utility model discloses a two glass substrates of vacuum glass adopt toughened (or half toughened) glass to adjust the interval of supporter more than 45mm, reduce the supporter and then further reduction volume is propagated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the door/window frame and the fan blade frame for opening and closing the door/window of the present invention;
FIG. 3 is a schematic structural view of the composite vacuum glass of the present invention;
wherein in the figure: the door window frame is characterized in that 1 is a door window frame body, 11 is a groove, 12 is a heat insulation cavity body, 13 is a limiting groove, 121 is a supporting structure, 1211 is a vertical supporting plate, 1222 is a transverse supporting steel plate, 2 is a door window opening and closing fan blade frame body, 21 is a sealing rubber strip, 22 is a clamping groove, 23 is a door window opening and closing fan blade frame body cavity body, 24 is a pressing strip, 3 is composite vacuum glass, 31 is vacuum glass, 32 is laminated glass, 33 is a rubber sheet layer, 34 is a support, 35 is hollow glass, 36 is an air layer, 4 is a glass fiber reinforced plastic door window sill, and 5 is a foaming agent.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-3, there is provided a passive low-energy consumption building door and window according to the present embodiment, comprising: the glass fiber reinforced plastic door and window sill 4, the door and window frame body 1, the door and window opening and closing fan blade frame body 2 and the composite vacuum glass 3 are connected with the solid wall;
an insulating layer is filled between the glass fiber reinforced plastic door and window sill 4 and the solid wall;
an aerogel heat insulation sheet is arranged between the door and window frame body 1 and the glass fiber reinforced plastic door and window sill 4 and is fixedly connected with the door and window frame body, and waterproof sealant is coated at the joint of the edges of the inner surface and the outer surface of the glass fiber reinforced plastic door and window frame body 1;
a door and window fan blade opening is formed in the door and window frame body 1, the door and window opening and closing fan blade frame body 2 is hinged to one end face of the door and window fan blade opening, and a sealing rubber strip 21 is fixed on the peripheral side face of the door and window opening and closing fan blade frame body 2;
the composite vacuum glass 3 is embedded in the door and window opening and closing fan blade frame body 2, and the joint of the inner surface edge and the outer surface edge of the composite vacuum glass and the door and window opening and closing fan blade frame body 2 is coated with waterproof sealant.
The utility model discloses can install door and window on glass steel door and window sill 4 that has leveling effect, water-proof effects, better leakproofness and pleasing to the eye effect, glass steel door and window sill 4 has solved the contact problem of door and window bottom and solid wall, fills the heat preservation and can play the heat preservation effect better, and glass steel door and window sill 4 is different from ceramic tile layer or brick layer or other screed-coats, and its good quality outward appearance is level, can not produce infiltration, the problem of leaking;
the utility model adopts waterproof sealant and sealing rubber strips 21 at multiple places, increases the air tightness of doors and windows, prevents the interaction of air convection energy, and adopts the composite vacuum glass 3 to better play the roles of sound insulation and heat insulation, thereby obtaining superior heat preservation, heat insulation, air tightness, water tightness and sound insulation;
the utility model discloses a to the comprehensive optimization of whole window system, control the heat transfer coefficient of heat transfer of whole window: the heat transfer coefficient U of the whole door and window is less than or equal to 0.8W/(m)2K), airtightness: the average air exchange times of the building per hour are lower than 0.6 under the condition that the indoor and outdoor positive and negative pressure difference is 50 Pa. The design of the low-energy-consumption environment-friendly door and window is realized, and the high market value and the high popularization value are achieved.
In the embodiment, the door and window frame 1 comprises a groove 11 for placing a sealing rubber strip 21, a heat insulation cavity 12 and a limiting groove 13 for fixing a rubber sheet; a support structure 121 is arranged in the heat insulation cavity 12.
In this embodiment, the support structure 121 includes: the vertical supporting steel plate 1211 and the horizontal supporting steel plate 1222 are arranged in a criss-cross manner, two ends of the vertical supporting steel plate 1211 are respectively fixedly connected to the upper and lower cavity walls of the heat insulation cavity 12, and two ends of the horizontal supporting steel plate 1222 are respectively fixedly connected to the left and right cavity walls of the heat insulation cavity 12.
In this embodiment, the heat insulation cavity 12 is divided into a plurality of independent cavities by the vertical support steel plate 1211 and the horizontal support steel plate 1222, and the cavities are filled with the foaming agent 5.
In this embodiment, the door and window opening and closing fan blade frame body 2 includes a clamping groove 22 for clamping and embedding the vacuum glass 3, a door and window opening and closing fan blade frame body cavity 23 and a pressing strip 24, the pressing strip 24 is clamped and embedded at one side of the clamping groove 22, the vacuum glass 3 is located in the clamping groove 22 and the pressing strip 24, and the door and window opening and closing fan blade frame body cavity 23 is filled with a foaming agent.
Blowing agent 5 in this example is a polyurethane blowing agent.
By adopting the technical scheme, the door and window frame body and the door and window opening and closing fan blade frame body adopt the frame body indoor glass fiber reinforced plastic section bar, the deformation of the door and the window is reduced by the increase of the thickness of the section bar and the supporting structure, and the stability is improved; the heat insulation cavity 12 of the door and window frame body 1 is arranged, so that the heat insulation, the heat insulation and the air tightness are greatly improved.
In this embodiment, the composite vacuum glass 3 includes a vacuum glass 31, the vacuum glass 31 includes two glass substrates, edges of the two glass substrates are hermetically connected by a glass brazing material, a vacuum layer is formed between the two glass substrates, and the two glass substrates are separated by a support 34;
laminated glass 32 is compounded on one surface of the vacuum glass 31, and the laminated glass 32 and the vacuum glass 31 are compounded through a film layer 33;
the other surface of the vacuum glass 31 is compounded with hollow glass 35, and an air layer 36 is formed between the vacuum glass 31 and the hollow glass 35.
The utility model discloses compound laminated glass 32 and hollow glass 35 respectively on two surfaces of vacuum glass 31 to produce the asymmetric structure of laminated glass 32, vacuum glass 31 and hollow glass 35 combination, wherein compound through the film layer between laminated glass 32 and the vacuum glass, form the air bed between vacuum glass and the hollow glass; the asymmetrical structure is formed, so that the resonance of the whole glass is inhibited and weakened, and the sound insulation quantity of the whole glass sheet in a low-frequency area is increased; the vacuum glass, the air layer and the hollow glass enable the whole glass to be a double-layer structure, and the air layer plays a role of an elastic layer of the flexible cushion at the moment, so that more sound energy is consumed; the composite structure can reduce the anastomosis resonance of sound waves in a critical frequency control area and increase high-frequency sound insulation. And the vacuum glass 31 has good heat insulating performance.
In this embodiment, the thickness of the air layer 36 between the vacuum glass 31 and the hollow glass 35 is greater than or equal to 12 mm; the thickness of the film layer between the laminated glass 32 and the vacuum glass 31 is more than or equal to 0.76 mm; the two glass substrates of the vacuum glass 31 are made of toughened glass, so that the spacing between the supports of the vacuum glass is more than or equal to 45 mm.
In addition, in the conventional common vacuum glass, the distance between the supports is 25-30 mm, so that the number of the supports per square meter of vacuum glass is 1100-1600. These supports form a sound bridge through which sound is transmitted, thereby limiting the sound insulation properties of the vacuum glass.
Therefore, the two glass substrates of the vacuum glass 31 of the present invention adopt toughened (or semi-toughened) glass, so as to adjust the distance between the supports 34 to be more than 45mm, thereby reducing the volume propagation in the supports and the embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a passive form low energy consumption building door and window which characterized in that includes:
the glass fiber reinforced plastic door and window sill (4) is connected with the solid wall, and a heat insulation layer is filled between the glass fiber reinforced plastic door and window sill (4) and the solid wall;
the door and window frame comprises a door and window frame body (1), wherein aerogel heat insulation sheets are arranged between the door and window frame body (1) and a glass fiber reinforced plastic door and window sill (4) and are fixedly connected with each other, and waterproof sealant is coated at the joint of the glass fiber reinforced plastic door and window sill and the edge of the inner surface and the outer surface of the door and window frame body (1);
the fan blade frame body (2) is characterized in that a door and window fan blade opening is formed in the door and window frame body (1), the door and window fan blade frame body (2) is hinged to one end face of the door and window fan blade opening, and a sealing rubber strip (21) is fixed on the peripheral side face of the door and window fan blade frame body (2);
the composite vacuum glass (3), the composite vacuum glass (3) inlay card is in the door and window fan blade framework that opens and shuts (2), just inside and outside surface edge with door and window fan blade framework that opens and shuts (2) junction coating has waterproof sealed glue.
2. The passive low-energy-consumption building door and window as claimed in claim 1, wherein the door and window frame body (1) comprises a groove (11) for placing the sealing rubber strip (21), a heat insulation cavity (12) and a limiting groove (13) for fixing a rubber sheet; a supporting structure (121) is arranged in the heat insulation cavity (12).
3. A passive, low-energy consumption architectural door or window according to claim 2, characterized in that said supporting structure (121) comprises: the heat insulation structure comprises vertical supporting steel plates (1211) and horizontal supporting steel plates (1222) which are arranged in a cross mode, wherein two ends of each vertical supporting steel plate (1211) are respectively fixedly connected to the upper cavity wall and the lower cavity wall of the heat insulation cavity (12), and two ends of each horizontal supporting steel plate (1222) are respectively fixedly connected to the left cavity wall and the right cavity wall of the heat insulation cavity (12).
4. A passive, low energy consumption building door and window according to claim 3, characterized in that said vertical support steel plate (1211) and said lateral support steel plate (1222) divide said insulating cavity (12) into a plurality of independent cavities, said cavities being filled with foaming agent (5).
5. The passive low-energy-consumption building door and window as claimed in claim 1, wherein the door and window opening and closing fan blade frame body (2) comprises a clamping groove (22) for clamping and embedding the composite vacuum glass (3), a door and window opening and closing fan blade frame body cavity (23) and a batten (24), the batten (24) is clamped and embedded on one side of the clamping groove (22), the composite vacuum glass (3) is located in the clamping groove (22) and the batten (24), and the door and window opening and closing fan blade frame body cavity (23) is filled with a foaming agent (5).
6. A passive low-energy consumption building door and window according to claim 4 or 5, characterized in that said foaming agent (5) is a polyurethane foaming agent.
7. A passive low-energy-consumption architectural door or window according to claim 6, wherein the composite vacuum glass (3) comprises a vacuum glass (31), the vacuum glass (31) comprises two glass substrates, the edges of the two glass substrates are hermetically connected through a glass brazing material, a vacuum layer is formed between the two glass substrates, and the two glass substrates are separated by a support (34);
laminated glass (32) is compounded on one surface of the vacuum glass (31), and the laminated glass (32) and the vacuum glass (31) are compounded through a film layer (33);
the other surface of the vacuum glass (31) is compounded with hollow glass (35), and an air layer (36) is formed between the vacuum glass (31) and the hollow glass (35).
8. A passive low-energy consumption building door or window according to claim 7, characterized in that said air layer (36) has a thickness greater than or equal to 12 mm; the thickness of the film layer (33) is equal to or greater than 0.76 mm.
CN201921409901.0U 2019-08-28 2019-08-28 Passive low-energy-consumption building door and window Active CN211313949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921409901.0U CN211313949U (en) 2019-08-28 2019-08-28 Passive low-energy-consumption building door and window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921409901.0U CN211313949U (en) 2019-08-28 2019-08-28 Passive low-energy-consumption building door and window

Publications (1)

Publication Number Publication Date
CN211313949U true CN211313949U (en) 2020-08-21

Family

ID=72076136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921409901.0U Active CN211313949U (en) 2019-08-28 2019-08-28 Passive low-energy-consumption building door and window

Country Status (1)

Country Link
CN (1) CN211313949U (en)

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