Curtain wall assembly for low-carbon energy-saving building

Abstract

The invention relates to the technical field of building curtain wall assemblies, and discloses a low-carbon energy-saving building curtain wall assembly which comprises stand columns and connecting cross beams, the stand columns are fixedly arranged on a wall, the stand columns and the connecting cross beams form a mounting frame, panel units are fixedly arranged on the inner side of the mounting frame, and the connecting cross beams comprise the lower cross beam and the upper cross beam; a first isobaric cavity and a second isobaric cavity are formed between the lower cross beam and the upper cross beam which are connected with each other. The back sealant is added after the connecting cross beam and the stand column are spliced, so that an adjusting cavity is formed in the side, close to the wall body, of the panel unit, sealing isolation is formed between the adjusting cavity and a cavity body of the isobaric cavity, and the adjusting air bag is matched to communicate with the adjusting cavity to maintain the air pressure in the adjusting cavity within a rated range; the adjusting tension spring drives the adjusting air bag to extrude air in the air bag, movement of the panel unit is not affected under the condition of strong wind pressure, extra air pressure support is provided while stress concentration is reduced, and the possibility of subfissure of the panel assembly is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of building curtain wall components, and in particular to a curtain wall component for low-carbon and energy-saving buildings. Background Art

[0002] The building curtain wall formed by splicing several curtain wall components is an important component of the exterior facade of low-carbon energy-saving buildings. Existing building components include beams and columns. The columns are fixedly installed on the embedded parts outside the building wall through connectors. Both sides of the columns are fixedly connected to the beams through connectors. Adjacent columns and beams are spliced ​​to form a frame. A panel unit is fixedly arranged in the frame. The panel unit is usually a glass component or a photovoltaic component. The beam located at the top of the panel component is the upper beam. The upper beam is plugged and fixed with the lower beam at the bottom of the adjacent panel unit, and a sealant is arranged between them to form two interconnected isobaric cavities, that is, the sealant does not completely seal the connection, so that the air pressure in the isobaric cavity is equal to that of the outside world, so as to avoid excessive water vapor or rainwater being brought into the sealed cavity by the air pressure difference and difficult to discharge. The upper beam and the lower beam are both composed of aluminum frame units spliced ​​together, and elastic glue is arranged at the connection between the panel unit and the frame, so that the panel unit and the frame are flexibly connected, and the joints are filled with structural glue to ensure sealing.

[0003] However, when traditional curtain wall components are used and encounter strong winds, the panel unit will squeeze the elastic glue. While alleviating the wind pressure on the glass plate and causing stress concentration, the movement of the panel unit will compress the cavity between the panel unit and the wall, increasing the air pressure in the cavity, thereby making the air pressure in the cavity greater than the air pressure in the isobaric cavity, and easily compressing the gas into the isobaric cavity. When the panel unit is reset, the cavity air pressure decreases, and the gas in the isobaric cavity is drawn back into the cavity. The isobaric cavity is connected to the outside world through the gap left by the sealant, which easily causes the air pressure in the isobaric cavity to increase and decrease alternately, so that water vapor and even rainwater from the outside are sucked into the isobaric cavity, causing water leakage in the curtain wall component. The larger the expansion and contraction range of the elastic block, the easier it is to cause air pressure fluctuations in the isobaric cavity. If the cavity between the curtain wall unit and the wall is sealed, the air pressure in the sealed cavity is constant, and the gas hinders the movement of the glass panel in the normal direction of the wall, which easily causes stress concentration of the glass panel under wind pressure, increasing the possibility of hidden cracks or even rupture of the glass panel. Summary of the invention

[0004] The present application proposes a curtain wall assembly for low-carbon and energy-saving buildings, which has the advantage of preventing changes in the air pressure in the cavity between the panel unit and the wall from affecting the fluctuations in the air pressure in the isobaric cavity, and is used to solve the problem that the air pressure in the cavity between the panel unit and the wall affects the air pressure in the isobaric cavity.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a curtain wall assembly for low-carbon energy-saving buildings, comprising columns and connecting beams, wherein the columns are fixedly arranged on the wall, the columns and connecting beams form an installation frame, a panel unit is fixedly arranged inside the installation frame, the connecting beams include a lower beam and an upper beam, a first isobaric cavity and a second isobaric cavity are formed between the interconnected lower beam and the upper beam, a back sealant is fixedly arranged on the side of the interconnected lower beam, the upper beam and the corresponding column close to the wall, the back sealant is used to seal the gap between the installation frame and the wall to form an adjustment cavity and separate the isobaric cavities;

[0006] An adjusting airbag is fixedly provided on one side of the upper crossbeam, a vent hole is provided at the bottom of the adjusting airbag, a connecting hole corresponding to the vent hole is provided on one side of the bottom of the upper crossbeam, the connecting hole and the vent hole connect the adjusting cavity and the inner cavity of the adjusting airbag, one side of the upper crossbeam is provided as a connecting part for adjusting the extension and retraction of the airbag, the connecting part is connected to the air outside the upper crossbeam, the adjusting airbag can expand and contract according to the air pressure change of the adjusting cavity inside the installation frame, and the adjusting airbag absorbs the air in the adjusting cavity to expand when the air pressure in the adjusting cavity increases.

[0007] The beneficial effects of the present invention are as follows:

[0008] The present application provides a curtain wall assembly for low-carbon and energy-saving buildings, in which an adjustment cavity formed by connecting beams, columns and walls is sealed by back sealant, so that when the panel unit is affected by wind pressure and moves within a rated moving gap, the panel unit presses the air in the adjustment cavity into an expandable and contractible air bag, thereby achieving the effect of avoiding pressure fluctuations in the isobaric cavity caused by changes in the air pressure in the adjustment cavity without affecting the panel unit's adaptation to wind pressure or vibration movement, improving the air pressure stability in the isobaric cavity in the curtain wall assembly, ensuring the set waterproof effect, and allowing the panel unit to adapt to the load and move within a wider moving gap, thereby ensuring the reliability of the use of the curtain wall assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 This is a schematic diagram of the structure of the back sealant of the present invention;

[0012] Figure 3This is a schematic diagram of the crossbeam structure of the present invention;

[0013] Figure 4 It is a schematic cross-sectional view of the structure of the cross beam of the present invention;

[0014] Figure 5 for Figure 4 A magnified view of the structure in Figure 2.

[0015] In the figure: 1-wall, 2-column, 3-connecting beam, 301-lower beam, 302-upper beam, 303-connecting part, 4-panel unit, 5-back sealant, 6-sealing sleeve, 7-connecting piece, 8-sealing pad, 9-adjusting airbag, 10-vent, 11-adjusting tension spring, 12-sliding rod, 13-movable plate, 14-adjusting spring, 15-sealing plate, 16-fixed plate, 17-connecting hole, 18-seal, 19-elastic piece, 20-edge sealant. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1, as Figure 1-Figure 5 A curtain wall assembly for a low-carbon energy-saving building includes a column 2 and a connecting beam 3. The column 2 is fixedly arranged on the wall 1 and is arranged vertically. The connecting beam 3 is fixedly connected to the column 2 and is arranged horizontally. Two adjacent columns 2 and the connecting beam 3 form an installation frame. A panel unit 4 is fixedly arranged inside the installation frame. Several columns 2, connecting beams 3 and panel units 4 are spliced ​​to form a curtain wall. The connecting beam 3 includes a lower beam 301 and an upper beam 302. The lower beam 301 is located at the bottom of the corresponding panel unit 4, and the upper beam 302 is located at the top of the corresponding panel unit 4. The lower beam 301 and the upper beam 302 between two adjacent panel units 4 are fixedly connected. See Figure 4 An elastic member 19 is fixedly arranged between the panel unit 4 and the corresponding connecting beam 3 .

[0018] The elastic member 19 can be set as a structural adhesive. The elastic member 19 is located on one side of the panel unit 4 and surrounds a frame adapted to the panel unit 4. When the panel unit 4 is subjected to wind pressure, the elastic member 19 provides elastic support while enabling the panel unit 4 to move relative to the beam within a rated range, thereby alleviating the stress concentration caused by the wind pressure acting on the glass plate. An edge sealant 20 is provided between the panel unit 4 and the corresponding connecting beam 3. The edge sealant 20 is located around the panel unit 4 and is used to seal the gap between the panel unit 4 and the connecting beam 3. See Figure 3 A connecting piece 7 is fixedly provided at the middle position of the top of the upper crossbeam 302 , and a sealing piece 18 is fixedly provided on one side of the bottom of the lower crossbeam 301 . The sealing piece 18 is used to form a primary seal between the lower crossbeam 301 and the upper crossbeam 302 .

[0019] The sealing member 18 is configured as an EPDM rubber strip and a gap for drainage is left between the sealing member 18 and the corresponding upper beam 302. The sealing member 18 can also be configured as weather-resistant glue. The connecting member 7 is configured as an aluminum alloy plate and is L-shaped. The top surface of one side of the connecting member 7 is inclined so that water entering between the lower beam 301 and the upper beam 302 can be discharged along the inclined surface of the connecting member. A weather-resistant glue for secondary sealing is arranged between the top of the vertical part of the connecting member 7 and the corresponding lower beam 301. An isobaric chamber No. 1 isobaric chamber is formed between the primary seal and the secondary seal. A weather-resistant glue for tertiary sealing is arranged on one side of the lower beam 301 and the upper beam 302. An isobaric chamber No. 2 isobaric chamber No. 1 and No. 2 are connected to the air outside the connecting beam 3, so that the air pressure in the isobaric chamber is equal to the air pressure, thereby avoiding water vapor or rainwater entering the isobaric chamber due to the air pressure being greater than the air pressure in the isobaric chamber and being difficult to discharge.

[0020] See also Figure 2 The upper crossbeam 302, the lower crossbeam 301 and the corresponding column 2 corresponding to the panel unit 4 are fixedly provided with a back sealant 5 on one side close to the wall 1. The back sealant 5 is used to seal the gap between the connecting crossbeam 3, the column 2 and the wall 1, so that a closed adjustment cavity is formed between the panel unit 4, the connecting crossbeam 3, the column 2 and the wall 1. The back sealant 5 separates the adjustment cavity from the second isobaric cavity to prevent the air pressure change in the adjustment cavity from affecting the air pressure of the isobaric cavity when the panel unit 4 moves under wind pressure. The back sealant 5 is added after the connecting crossbeam 3 and the column 2 are spliced.

[0021] See also Figure 4An adjusting airbag 9 is fixedly provided on one side of the upper crossbeam 302, and a vent hole 10 is opened at the bottom of the adjusting airbag 9. A connecting hole corresponding to the vent hole 10 is opened on one side of the bottom of the upper crossbeam 302. The connecting hole and the vent hole 10 connect the adjusting cavity and the inner cavity of the adjusting airbag 9. One side of the upper crossbeam 302 is set as a connecting part 303 for adjusting the extension and retraction of the adjusting airbag 9. Part of the adjusting airbag 9 is located in the connecting part 303, one side of the connecting part 303 is connected to the air outside the upper crossbeam 302, and the other side of the connecting part 303 is fixedly connected with the adjusting airbag 9.

[0022] When the wind pressure acts on the panel unit 4 and causes the air pressure in the pressurized cavity to fluctuate, the gas in the regulating cavity is filled into the regulating airbag 9 to expand the portion of the regulating airbag 9 located at the connecting portion 303. This allows the gas pressure in the regulating cavity to adapt to the vibration and movement of the panel unit 4 under the action of wind pressure while keeping the regulating cavity sealed, thereby preventing the gas in the regulating cavity from hindering the movement or strain of the panel unit 4 when it adapts to its own stress. This ensures that the air pressure in the No. 1 isobaric cavity and the No. 2 is stable by absorbing the gas in the regulating cavity through the regulating airbag 9 without affecting the movement or strain of the panel unit 4 within the moving gap due to environmental effects, thereby preventing the air pressure in the isobaric cavity from alternatingly increasing or decreasing, resulting in intermittent suction of water vapor or rainwater outside the connecting beam 3, which may cause excessive water accumulation inside the connecting beam 3. The water is difficult to discharge in a short time, which may easily lead to leakage and seepage of the curtain wall structure.

[0023] An adjusting tension spring 11 for driving the adjusting airbag 9 to contract is arranged on the top of the adjusting airbag 9. When the gas pressure in the adjusting cavity is restored, the adjusting tension spring 11 drives the expanded part of the adjusting airbag 9 to contract and reset. The adjusting tension spring 11 provides a contraction force when the adjusting airbag 9 is expanded, and the adjusting airbag 9 squeezes the air inside so that the air in the adjusting cavity and the adjusting airbag 9 maintains a rated pressure, thereby providing a uniformly distributed gas pressure on the side of the panel unit 4 close to the wall 1, dispersing the contact pressure between the panel unit 4 and the elastic member 19, reducing the compression amount of the compressed elastic member 19 of the panel unit 4 under the action of wind pressure, increasing the force-bearing surface, reducing the vibration amplitude, reducing the possibility of hidden cracks or even rupture of the panel unit 4 due to stress concentration, and reducing the disturbance to the elastic member 19 and the edge sealant 20.

[0024] Embodiment 2, as Figure 2-Figure 5 Based on the first embodiment, refer to Figure 2A sealing sleeve 6 is fixedly provided between the connecting crossbeam 3 and the corresponding column 2 formed by the connection. The sealing sleeve 6 is arranged on both sides of the upper crossbeam 302 and the lower crossbeam 301 connected to each other, and the sealing sleeve 6 is partially fixedly sleeved on the corresponding upper crossbeam 302 and the lower crossbeam 301. During installation, after the upper crossbeam 302 and the lower crossbeam 301 are spliced, the sealing sleeve 6 is sleeved on both sides of the connecting crossbeam 3, and then the connecting crossbeam 3 is installed to the side of the column 2. The shape of the sealing sleeve 6 is adapted to the cross-sectional shape of the connecting crossbeam 3 when spliced. The sealing sleeve 6 is used to seal the gap between the connecting crossbeam 3 and the column 2, leaving a moving gap for the connecting crossbeam 3, so that the connecting crossbeam 3 can adapt to the movement or deformation caused by temperature or structural deformation through the margin of the moving gap, and at the same time seal the gap between the side of the No. 1 isobaric chamber and the No. 2 isobaric chamber and the column 2. The sealing sleeve 6 can be set as a structural adhesive sleeve.

[0025] A sliding rod 12 is provided on one side of the upper cross beam 302, and a movable plate 13 is fixedly connected to the bottom of the sliding rod 12. An outer movable sleeve of the sliding rod 12 is provided with an adjusting spring 14. One end of the adjusting spring 14 presses against the movable plate 13 to move the movable plate 13 toward the adjusting airbag 9. A sealing gasket 8 cooperating with the sealing member 18 is provided on one side of the connecting member 7. The length of the sealing gasket 8 matches the length of the sealing member 18. One side of the sealing gasket 8 is fixedly connected to the connecting member 7, and the other side of the sealing gasket 8 is a freely movable part. The bottom of the freely movable part of the sealing gasket 8 is fixedly connected to the sliding rod 12, the connecting rod 7 is slidably sleeved with the sliding rod 12, and the bottom of the movable plate 13 contacts the adjusting airbag 9.

[0026] When the internal air pressure of the regulating airbag 9 increases to reach the rated value, the regulating airbag 9 expands and drives the movable plate 13 to move, the movable plate 13 drives the sliding rod 12 to move, and the sliding rod 12 drives the sealing gasket 8 to move close to and against the sealing member 18. After the air pressure in the No. 1 isobaric chamber increases to be equal to that in the outside world, the sealing gasket 8 and the sealing member 18 seal the gap between the No. 1 isobaric chamber and the outside world, and cooperate with the sealing sleeve 6 to ensure the closure of the No. 1 isobaric chamber, thereby sealing the interior of the connecting beam 3 when the wind pressure is high, avoiding excessive water accumulation caused by water vapor or rainwater being blown into the connecting beam 3 in a strong wind environment, and further improving the reliability of the sealing structure of the connecting beam 3.

[0027] A fixed plate 16 is fixedly provided on one side of the upper crossbeam 302, and a sealing plate 15 is fixedly connected to one side of the movable plate 13. The interior of the fixed plate 16, one side of the upper crossbeam 302 and one side of the connecting piece 7 are all provided with interconnected communicating holes 17. One end of the communicating hole 17 is connected to the cavity in the upper crossbeam 302, and the other end of the communicating hole 17 is connected to the No. 1 isobaric chamber. When the sealing gasket 8 is fitted with the connecting piece 7, one end opening of the communicating hole 17 is sealed, and the sealing plate 15 is fitted with the fixed plate 16 to seal the other end opening of the communicating hole 17. When the sealing gasket 8 moves to fit with the sealing 18, the openings at both ends of the communicating hole 17 are opened, and at this time, the adjustment The throttle bag 9 squeezes the air in the internal cavity of the upper beam 302, so that the air pressure in the No. 1 isobaric chamber increases and the pressure value is greater than the air on the outside of the connecting beam 3, thereby preventing the outside air from carrying rainwater into the No. 1 isobaric chamber due to the gas pressure difference, further improving the sealing performance of the connection at the connecting beam 3, and temporarily increasing the sealing when encountering a strong wind accompanied by rain environment, reducing the drainage pressure of the curtain wall assembly, and further reducing the possibility of water accumulation inside the connecting beam 3. When the wind pressure on the panel unit 4 is reduced, the movable plate 13 and the sealing gasket 8 are reset respectively, and the air pressure in the No. 1 air pressure chamber is restored first and then the gap left between the sealing gasket 8 and the connector 7 is opened.

[0028] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A curtain wall assembly for a low-carbon energy-saving building, comprising a column (2) and a connecting beam (3), wherein the column (2) is fixedly arranged on a wall (1), the column (2) and the connecting beam (3) form a mounting frame, a panel unit (4) is fixedly arranged inside the mounting frame, the connecting beam (3) comprises a lower beam (301) and an upper beam (302), a first isobaric cavity and a second isobaric cavity are formed between the interconnected lower beam (301) and the upper beam (302), and the characteristic is that: A back sealant (5) is fixedly arranged on one side of the interconnected lower crossbeam (301), the upper crossbeam (302) and the corresponding upright column (2) close to the wall (1), and the back sealant (5) is used to seal the gap between the installation frame and the wall (1) to form an adjustment cavity and separate the isobaric cavity; An adjusting airbag (9) is fixedly arranged on one side of the upper crossbeam (302), a vent hole (10) is provided at the bottom of the adjusting airbag (9), a connecting hole corresponding to the vent hole (10) is provided on one side of the bottom of the upper crossbeam (302), the connecting hole and the vent hole (10) are connected to the adjusting cavity and the inner cavity of the adjusting airbag (9), one side of the upper crossbeam (302) is provided as a connecting part (303) for adjusting the expansion and contraction of the adjusting airbag (9), the connecting part (303) is connected to the air outside the upper crossbeam (302), the adjusting airbag (9) can expand and contract according to the air pressure change of the adjusting cavity inside the mounting frame, and the adjusting airbag (9) absorbs the air in the adjusting cavity to expand when the air pressure in the adjusting cavity increases.

2. A low-carbon energy-saving building curtain wall assembly according to claim 1, characterized in that: An adjusting tension spring (11) for driving the adjusting airbag (9) to contract is arranged on the top of the adjusting airbag (9), and the adjusting tension spring (11) provides a contraction force when the adjusting airbag (9) expands.

3. A low-carbon energy-saving building curtain wall assembly according to claim 1, characterized in that: A connecting piece (7) is fixedly provided at the middle position of the top of the upper crossbeam (302), and a sealing piece (18) is fixedly provided on one side of the bottom of the lower crossbeam (301), wherein the sealing piece (18) is used to seal the opening of the No. 1 isobaric chamber.

4. A low-carbon energy-saving building curtain wall assembly according to claim 3, characterized in that: The connecting piece (7) is arranged in an L shape and a top surface of one side of the connecting piece (7) is arranged in an inclined manner.

5. A low-carbon energy-saving building curtain wall assembly according to claim 3, characterized in that: A sealing sleeve (6) is fixedly arranged between the connecting crossbeam (3) and the corresponding column (2); the sealing sleeve (6) is fixedly sleeved on the corresponding upper crossbeam (302) and lower crossbeam (301); the shape of the sealing sleeve (6) is compatible with the cross-sectional shape formed by the upper crossbeam (302) and lower crossbeam (301) connected to each other.

6. A low-carbon energy-saving building curtain wall assembly according to any one of claims 3 or 4, characterized in that: A sliding rod (12) is provided on one side of the upper cross beam (302), a movable plate (13) is fixedly connected to the bottom of the sliding rod (12), an outer movable sleeve of the sliding rod (12) is provided with an adjusting spring (14), a sealing gasket (8) matching with the sealing member (18) is provided on one side of the connecting member (7), the length of the sealing gasket (8) is adapted to the length of the sealing member (18), one side of the sealing gasket (8) is fixedly connected to the connecting member (7), and the bottom of the freely movable part of the sealing gasket (8) is fixedly connected to the sliding rod (12).

7. A low-carbon energy-saving building curtain wall assembly according to claim 6, characterized in that: One side of the connecting portion (303) is fixedly sleeved with the regulating airbag (9), one side of the upper cross beam (302) is fixedly provided with a fixing plate (16), one side of the movable plate (13) is fixedly connected with a sealing plate (15), and the interior of the fixing plate (16), one side of the upper cross beam (302) and one side of the connecting piece (7) are all provided with interconnected connecting holes (17), and the connecting hole (17) connects the cavity in the upper cross beam (302) with the No. 1 isobaric chamber.

8. A low-carbon energy-saving building curtain wall assembly according to claim 7, characterized in that: The sealing gasket (8) seals one end opening of the communicating hole (17) when it is in contact with the connecting piece (7); the sealing plate (15) is matched with the fixing plate (16); and the sealing plate (15) is used to seal the other end opening of the communicating hole (17).

9. A low-carbon energy-saving building curtain wall assembly according to claim 1, characterized in that: An elastic member (19) is fixedly arranged between the panel unit (4) and the corresponding connecting crossbeam (3).

10. A low-carbon energy-saving building curtain wall assembly according to claim 1, characterized in that: An edge protection sealant (20) is provided between the panel unit (4) and the corresponding connecting crossbeam (3).

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