Outer window structure suitable for airtight transformation of existing building

Abstract

The utility model discloses an outer window structure suitable for airtight transformation of an existing building. The outer window structure comprises an outer window. The outer window is arranged in a reserved window hole in a structural outer wall, and a window frame of the outer window and the structural outer wall form a window upper opening fixing structure, a window lower opening fixing structure and a window side opening fixing structure which are matched with one another. The window upper opening fixing structure comprises an outdoor node A and an indoor node A which are arranged at the joint of the top of a window frame of an outer window and an outer wall. The window lower opening fixing structure comprises an outdoor node B and an indoor node B which are arranged at the joint of the bottom of the window frame of the outer window and the outer wall. The upper window opening fixing structure, the lower window opening fixing structure and the window side opening fixing structure are used in cooperation, damage to an original heat preservation layer can be reduced, permeation of indoor water vapor can be effectively prevented, the overall air tightness and water tightness of the outer window can be improved, the air tightness problem of an existing building outer window is solved, the construction technology is controlled, and the construction cost is reduced. The indoor oxygen concentration is effectively maintained, and the energy-saving effect is comprehensively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of exterior windows in building construction, and particularly relates to an exterior window structure suitable for airtightness reconstruction of existing buildings. Background Art

[0002] Low pressure, low oxygen, low temperature and strong ultraviolet radiation in high altitude areas seriously affect people's work and life. At present, for existing buildings, the use of diffuse oxygen supply, breaking away from the constraints of nasal oxygen supply, and effectively improving the indoor oxygen environment has become a recognized solution. However, most of them only add diffuse supply facilities, and the air tightness of the building has not been given due attention, resulting in serious energy consumption. Among them, the hidden gap between the exterior window and the wall is one of the main air leakage points of the building's external envelope structure. In recent years, the air tightness of the building's exterior windows has basically met the requirements of the specifications. However, in the connection between the exterior window and the exterior wall, most of them are installed in the middle of the window hole wall, fixed by a connector, and the gap is filled with a foaming agent, then plastered, and finally the exterior wall is decorated; such a gap cannot be completely dense, which is easy to cause air circulation and rainwater leakage, while the oxygen in the oxygen-enriched room leaks out and affects the overall energy-saving effect. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide an external window structure suitable for airtightness renovation of existing buildings, so as to solve the airtightness and watertightness problems existing at the connection between the external window and the wall, while improving the energy-saving and heat-insulating effects.

[0004] The utility model adopts the following technical scheme: an external window structure suitable for airtightness renovation of existing buildings, comprising an external window; the external window is arranged in a reserved window hole on the structural external wall, and the window frame of the external window and the structural external wall form a window upper opening fixing structure, a window lower opening fixing structure and a window side opening fixing structure that cooperate with each other; the window upper opening fixing structure includes an outdoor node A and an indoor node A arranged at the intersection of the top of the window frame of the external window and the external wall; the window lower opening fixing structure includes an outdoor node B and an indoor node B arranged at the intersection of the bottom of the window frame of the external window and the external wall; the window side opening fixing structure includes an outdoor node C and an indoor node C arranged at the intersection of the side of the window frame of the external window and the external wall.

[0005] The outdoor node A includes a waterproof vapor-permeable membrane bonded to the junction of the window frame top of the exterior window and the exterior wall; a filling insulation layer is bonded to the outside of the waterproof vapor-permeable membrane; a waterproof mortar layer is bonded to the outside of the filling insulation layer; an insulation layer and an exterior finishing layer are bonded to the outside of the waterproof mortar layer; the indoor node A includes a waterproof vapor-barrier membrane bonded to the junction of the window frame top of the exterior window and the exterior wall; a plaster layer and an interior finishing layer are bonded to the outside of the waterproof vapor-barrier membrane.

[0006] The outdoor node B includes a waterproof vapor-permeable membrane bonded to the junction of the bottom of the window frame of the outer window and the outer wall; a filling insulation layer is bonded to the outer side of the waterproof vapor-permeable membrane; an insulation layer is bonded to the outer side of the filling insulation layer; a waterproof mortar layer and an outer finishing layer are bonded to the outer side of the insulation layer; a waterproof mortar layer is provided on the outer side of the outer finishing layer; a window sill is provided on the outer side of the waterproof mortar layer; the bottom of the window sill is connected to the waterproof mortar layer by foam glue, and the top of the window sill is fixed to the window frame of the outer window by bolts; the indoor node B includes a waterproof vapor-barrier membrane bonded to the junction of the bottom of the window frame of the outer window and the outer wall; a plaster layer and an interior finishing layer are bonded to the outer side of the waterproof vapor-barrier membrane; an inner window sill is pressed on the top of the plaster layer and the interior finishing layer.

[0007] The outdoor node C includes a waterproof vapor-permeable membrane bonded to the junction of the window frame side of the external window and the external wall; a filling insulation layer is bonded to the outer side of the waterproof vapor-permeable membrane; a waterproof mortar layer is bonded to the outer side of the filling insulation layer; an insulation layer and an external finishing layer are bonded to the outer side of the waterproof mortar layer; the indoor node C includes a waterproof vapor-barrier membrane bonded to the junction of the window frame side of the external window and the external wall; a plaster layer and an internal finishing layer are bonded to the outer side of the waterproof vapor-barrier membrane.

[0008] The bonding cross-sections of the waterproof vapor-permeable membrane and the waterproof vapor-barrier membrane are both L-shaped, and the effective bonding width with the window frame of the external window is not less than 15 mm, and the effective bonding width with the base of the wall is not less than 50 mm.

[0009] The joints between the exterior finishing layer and the thermal insulation layer and the window frame are cleaned to the wall base surface by a cutting machine and form a bevel angle, and the bevel angle is 30 to 60 degrees.

[0010] A layer of alkali-resistant mesh cloth is also arranged in the waterproof mortar layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: on the basis of making full use of the original external windows, the utility model can reduce the damage to the original insulation layer and save engineering workload by using the coordinated use of the window upper opening fixing structure, the window lower opening fixing structure and the window side opening fixing structure. The waterproof vapor-permeable membrane can be provided to effectively prevent the entry of outdoor moisture and ensure indoor gas circulation. The waterproof vapor-isolating membrane can effectively prevent the penetration of indoor water vapor, improve the overall air tightness and water tightness of the external windows, solve the air tightness problem of the external windows of existing buildings, control the construction process, effectively maintain the indoor oxygen concentration, and comprehensively improve the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the window upper opening fixing structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the window bottom opening fixing structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the window side opening fixing structure of the utility model.

[0015] In the figure: 1. exterior window, 101. window frame, 2. exterior wall, 3. outdoor node A, 4. indoor node A, 5. outdoor node B, 6. indoor node B, 7. outdoor node C, 8. indoor node C, 9. waterproof vapor-permeable membrane, 10. filling insulation layer, 11. waterproof mortar layer, 12. insulation layer, 13. exterior finishing layer, 14. waterproof vapor-barrier membrane, 15. plaster layer, 16. interior finishing layer, 17. window sill, 18. foam glue, 19. bolts, 20. interior window sill. DETAILED DESCRIPTION

[0016] The utility model is described below in conjunction with the accompanying drawings.

[0017] like Figure 1-Figure 3 An external window structure suitable for airtightness renovation of an existing building is shown, comprising an external window 1; the external window 1 is arranged in a reserved window hole on a structural external wall 2, and the window frame 101 of the external window 1 and the structural external wall 2 form a mutually matching window upper opening fixing structure, window lower opening fixing structure and window side opening fixing structure; the window upper opening fixing structure comprises an outdoor node A3 and an indoor node A4 arranged at the intersection of the top of the window frame 101 of the external window 1 and the external wall; the window lower opening fixing structure comprises an outdoor node B5 and an indoor node B6 arranged at the intersection of the bottom of the window frame 101 of the external window 1 and the external wall 2; the window side opening fixing structure comprises an outdoor node C7 and an indoor node C8 arranged at the intersection of the side of the window frame 101 of the external window 1 and the external wall.

[0018] The outdoor node A3 includes a waterproof vapor-permeable membrane 9 bonded at the junction of the top of the window frame 101 of the external window 1 and the external wall 2; a filling insulation layer 10 is bonded to the outside of the waterproof vapor-permeable membrane 9; a waterproof mortar layer 11 is bonded to the outside of the filling insulation layer 10; an insulation layer 12 and an exterior finishing layer 13 are bonded to the outside of the waterproof mortar layer 11; the indoor node A4 includes a waterproof vapor-proof membrane 14 bonded at the junction of the top of the window frame 101 of the external window 1 and the external wall 2; a plaster layer 15 and an interior finishing layer 16 are bonded to the outside of the waterproof vapor-proof membrane 14; the outdoor node B5 includes a waterproof vapor-permeable membrane 9 bonded at the junction of the bottom of the window frame 101 of the external window 1 and the external wall 2; The outer side of the waterproof vapor-permeable membrane 9 is bonded with a filling insulation layer 10; the outer side of the filling insulation layer 10 is bonded with an insulation layer 12; the outer side of the insulation layer 12 is bonded with a waterproof mortar layer 11 and an outer facing layer 13; the outer side of the outer facing layer 13 is provided with a waterproof mortar layer 11; the outer side of the waterproof mortar layer 11 is provided with a window sill 17; the bottom of the window sill 17 is connected to the waterproof mortar layer 11 by a foam glue 18, and the top of the window sill 17 is fixed to the window frame 101 of the outer window 1 by a bolt 19; the indoor node B6 includes a waterproof vapor-proof membrane 14 bonded at the junction of the bottom of the window frame 101 of the outer window 1 and the outer wall 2; the outer side of the waterproof vapor-proof membrane 14 is bonded with a plaster The plaster layer 15 and the interior surface layer 16 are pressed with an inner window sill 20 on the top of the plaster layer 15 and the interior surface layer 16; the outdoor node C7 includes a waterproof vapor-permeable membrane 9 bonded to the junction of the window frame 101 side of the outer window 1 and the outer wall 2; the outer side of the waterproof vapor-permeable membrane 9 is bonded with a filling insulation layer 10; the outer side of the filling insulation layer 10 is bonded with a waterproof mortar layer 11; the outer side of the waterproof mortar layer 11 is bonded with an insulation layer 12 and an outer finishing layer 13; the indoor node C8 includes a waterproof vapor-proof membrane 14 bonded to the junction of the window frame 101 side of the outer window 1 and the outer wall 2; the outer side of the waterproof vapor-proof membrane 14 is bonded with a plaster layer 15 and an interior surface layer 16 ; The bonding cross-sections of the waterproof vapor-permeable membrane 9 and the waterproof vapor-isolating membrane 14 are both L-shaped, and the effective bonding width with the window frame 101 of the outer window 1 is not less than 15 mm, and the effective bonding width with the base layer of the wall 2 is not less than 50 mm; the L-shaped cross-section structure adopted here can better improve the sealing performance and reduce heat loss; the connection between the outer finishing layer 13 and the thermal insulation layer 12 and the window frame 101 is cleaned to the wall base surface and forms a bevel angle by a cutting machine, and the bevel angle is 30~60 degrees; a layer of alkali-resistant mesh cloth is also arranged in the waterproof mortar layer 11, and the alkali-resistant mesh cloth added here is used to prevent the waterproof mortar layer 11 from cracking, improve the waterproof performance and extend its service life.

[0019] During assembly and construction, the utility model has a simple structure and is convenient to construct. First, by arranging a waterproof vapor-permeable membrane 9 at the indoor node, the entry of outdoor moisture can be effectively prevented and the indoor gas circulation can be guaranteed; by arranging a waterproof vapor-isolating membrane 14 at the outdoor node, the penetration of indoor water vapor can be effectively prevented, and the overall air tightness and water tightness of the external window can be improved; and the overall structure with an L-shaped cross-section can better improve the sealing performance and reduce heat loss; the setting of the filling insulation layer 10 and the waterproof mortar layer 11 can seal the joints connecting the upper and lower structures of the window frame to prevent deformation caused by thermal expansion, which can further reduce heat loss and play the role of thermal insulation; the window sill 17 is made of aluminum alloy, which can seal and bear the load of the filling insulation layer 10 and the insulation layer 12. At the same time, the insulation layer 12 is made of insulation materials available on the market, and has a strong thermal insulation function, which can further reduce heat loss and play the role of thermal insulation.

[0020] The preferred implementation modes of the utility model are described in detail above, but the present invention is not limited to the above implementation modes. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An exterior window structure suitable for airtightness improvement of an existing building, comprising an exterior window (1); wherein: The exterior window (1) is arranged in a reserved window hole on the structural exterior wall (2), and the window frame (101) of the exterior window (1) and the structural exterior wall (2) form a window upper opening fixing structure, a window lower opening fixing structure and a window side opening fixing structure that cooperate with each other; the window upper opening fixing structure comprises an outdoor node A (3) and an indoor node A (4) arranged at the intersection of the top of the window frame (101) of the exterior window (1) and the exterior wall (2); the window lower opening fixing structure comprises an outdoor node B (5) and an indoor node B (6) arranged at the intersection of the bottom of the window frame (101) of the exterior window (1) and the exterior wall (2); the window side opening fixing structure comprises an outdoor node B (6) and an indoor node B (7) arranged at the intersection of the side of the window frame (101) of the exterior window (1) and the exterior wall (2). Point C (7) and indoor node C (8); the outdoor node A (3) comprises a waterproof vapor-permeable membrane (9) bonded at the junction of the top of the window frame (101) of the external window (1) and the external wall (2); a filling insulation layer (10) is bonded to the outer side of the waterproof vapor-permeable membrane (9); a waterproof mortar layer (11) is bonded to the outer side of the filling insulation layer (10); an insulation layer (12) and an external finishing layer (13) are bonded to the outer side of the waterproof mortar layer (11); the indoor node A (4) comprises a waterproof vapor-proof membrane (14) bonded at the junction of the top of the window frame (101) of the external window (1) and the external wall (2); a plaster layer (15) and an internal finishing layer (16) are bonded to the outer side of the waterproof vapor-proof membrane (14).

2. The exterior window structure suitable for airtightness improvement of existing buildings according to claim 1 is characterized in that: The outdoor node B (5) comprises a waterproof vapor-permeable membrane (9) bonded to the junction of the bottom of the window frame (101) of the external window (1) and the external wall (2); a filling insulation layer (10) is bonded to the outside of the waterproof vapor-permeable membrane (9); a thermal insulation layer (12) is bonded to the outside of the filling insulation layer (10); a waterproof mortar layer (11) and an external finishing layer (13) are bonded to the outside of the thermal insulation layer (12); a waterproof mortar layer (11) is provided on the outside of the external finishing layer (13); a window sill (11) is provided on the outside of the waterproof mortar layer (11). 7); the bottom of the window sill (17) is connected to the waterproof mortar layer (11) by means of a foam glue (18), and the top of the window sill (17) is fixed to the window frame (101) of the outer window (1) by means of a bolt (19); the indoor node B (6) comprises a waterproof vapor barrier membrane (14) bonded to the junction between the bottom of the window frame (101) of the outer window (1) and the outer wall (2); a plaster layer (15) and an interior surface layer (16) are bonded to the outer side of the waterproof vapor barrier membrane (14); an inner window sill (20) is pressed on the top of the plaster layer (15) and the interior surface layer (16).

3. The exterior window structure suitable for airtightness improvement of existing buildings according to claim 1 is characterized in that: The outdoor node C (7) comprises a waterproof vapor-permeable membrane (9) bonded to the junction between the side of the window frame (101) of the external window (1) and the external wall (2); a filling insulation layer (10) is bonded to the outer side of the waterproof vapor-permeable membrane (9); a waterproof mortar layer (11) is bonded to the outer side of the filling insulation layer (10); an insulation layer (12) and an external finishing layer (13) are bonded to the outer side of the waterproof mortar layer (11); the indoor node C (8) comprises a waterproof vapor-proof membrane (14) bonded to the junction between the side of the window frame (101) of the external window (1) and the external wall (2); a plaster layer (15) and an internal finishing layer (16) are bonded to the outer side of the waterproof vapor-proof membrane (14).

4. The exterior window structure suitable for airtightness improvement of existing buildings according to claim 1 is characterized in that: The bonding cross-sections of the waterproof vapor-permeable membrane (9) and the waterproof vapor-isolating membrane (14) are both L-shaped, and the effective bonding width with the window frame (101) of the external window (1) is not less than 15 mm, and the effective bonding width with the base layer of the wall is not less than 50 mm.

5. The exterior window structure suitable for airtightness improvement of existing buildings according to claim 1 is characterized in that: The joints between the exterior finishing layer (13) and the thermal insulation layer (12) and the window frame (101) are cut using a cutting machine to the wall base surface and form a bevel angle, and the bevel angle is 30 to 60 degrees.

6. The exterior window structure suitable for airtightness improvement of existing buildings according to claim 1 is characterized in that: A layer of alkali-resistant mesh cloth is also provided in the waterproof mortar layer (11).

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