CN101942874A - Unit curtain wall structure capable of improving water tightness - Google Patents

Abstract

The invention relates to a unitized curtain wall structure capable of improving watertightness, which is characterized in that: an aluminum alloy protruding flange is arranged on the aluminum alloy right vertical column, and a long water-stop rubber strip is inlaid on the side of the end , the water-stop rubber strip is embedded in the groove on the aluminum alloy left stile, and the long water-stop rubber strip is closely attached to the side wall of the groove to form a water-retaining seal, which is compatible with the aluminum alloy left stile and aluminum alloy right sill The back cavity of the longitudinal water-guiding cavity is surrounded by the stiles, and the side frame of the curtain wall panel, the protruding flange of the aluminum alloy and the water-retaining rubber strip form the front cavity of the longitudinal water-guiding cavity; the upper beam of the aluminum alloy Aluminum alloy protruding flanges are set on the top, and a long water-stop rubber strip is inlaid on the side of the end, which is closely attached to the side wall on the aluminum alloy lower beam, and forms a horizontal drainage cavity with the water-retaining decorative cover. The "water retaining", "water guiding" and "drainage" paths of the unitized curtain wall of the present invention are clear, and the water sealing performance of the water-stop rubber strip is reasonably utilized.

Description

A unitized curtain wall structure capable of improving watertightness

technical field

The invention relates to a unitized curtain wall structure capable of improving watertightness. By improving the structural cooperation between the left and right vertical columns and the upper and lower beams of two unitized curtain wall panels, the rainwater leakage prevention performance of the unitized curtain wall is improved. It belongs to the technical field of curtain wall manufacture and installation.

Background technique

Unitized curtain wall is a production process in which all curtain wall components are manufactured and processed in the factory, and finally assembled into panels, and the panels are installed on the construction site. It is a high degree of factory production. The production and processing are carried out indoors, and the quality is easy to control. , The construction and installation process is safe and simple production process. In the prior art, unitized curtain wall panels are generally composed of aluminum alloy frames and curtain wall panels. The aluminum alloy frames are composed of aluminum alloy stiles on both sides and two upper and lower aluminum alloy beams. During curtain wall installation, According to the design requirements, the gap between two adjacent panels of the unitized curtain wall is 8-15mm, and the gap between the upper and lower panels is also 8-15mm. In order to prevent rainwater from entering the room through the gap between the panels, generally the adjacent On the stilts of the two unitized curtain wall panels, and on the beams of the upper and lower two unitized curtain wall panels, grooves are provided on one side, and protruding flanges are provided on the other side, and rubber strips are embedded on the side of the protruding flanges. The protruding flange of the rubber strip is inserted into the groove on the other side, so that the rubber strip is closely attached to the side wall of the groove, so as to achieve the purpose of water sealing. Through simple experiments, it is known that the water sealing effect is not ideal. To achieve a real water seal with the rubber strip and the aluminum alloy profile, the following conditions must be met at the same time: 1. The rubber strip must have appropriate hardness; 2. .There is a certain positive pressure on the contact surface between the rubber strip and the aluminum alloy; 3. The contact surface between the rubber strip and the aluminum alloy has a suitable matching precision; 4. The surface of the rubber strip and the aluminum alloy profile has a certain degree of smoothness. Due to technological limitations, the above conditions are difficult to achieve. The cooperation between the rubber strip and the aluminum alloy profile in the unitized curtain wall seems to fit closely together, but in fact the watertightness is very poor. As long as there is a small pressure difference, rainwater can easily pass through the cooperation between the rubber strip and the aluminum alloy wall. The high place flows to the place with low pressure. In the unitized curtain wall, the cooperation of the rubber strip and the aluminum alloy wall cannot guarantee water tightness. According to the principle of fluid kinematics, the cooperation of the rubber strip and the aluminum alloy wall can only prevent rainwater The role of flow plays the role of "alongway resistance" and "local resistance". The size of this resistance depends on the hardness of the aforementioned rubber strip; the normal pressure of the rubber strip and the aluminum alloy contact surface; The matching accuracy of the alloy contact surface; the smoothness of the surface of the rubber strip and the aluminum alloy profile, this is the reason why the unitized curtain wall is prone to water seepage from the outside to the inside after many consecutive days of rain or in a heavy rainstorm.

Contents of the invention

The purpose of the present invention is to design a joint between the unitized curtain wall panels that can improve the watertightness due to the poor watertightness of the rubber strips and the aluminum alloy profiles of the unitized curtain wall panels, which are limited by the manufacturing and installation process and difficult to improve. Unique unit curtain wall structure, the "water retaining", "water guiding" and "drainage" paths of the unit curtain wall of this structure are clear, and the water sealing performance of the water-stop rubber strip is reasonably utilized.

According to the technical solution provided by the present invention, a unitized curtain wall structure capable of improving watertightness includes aluminum alloy left stiles, aluminum alloy right sills, aluminum alloy lower beams and aluminum alloy upper beams, and is characterized in that it also includes water-stop rubber strips, water-retaining rubber strips, curtain wall panels, and water-retaining decorative covers. Two aluminum alloy protruding flanges are arranged on the aluminum alloy right column, and a long water-stop rubber strip is inlaid on the side of the end. The water-stopping rubber strip is embedded in the groove on the aluminum alloy left stile, and the long water-stopping rubber strip is closely attached to the side wall of the groove to form a water-retaining seal, which is compatible with the aluminum alloy left stile and the aluminum alloy right stile The back cavity of the longitudinal water-guiding cavity is surrounded, and the side frame of the curtain wall panel, the aluminum alloy protruding flange and the water-retaining rubber strip form the front cavity of the longitudinal water-guiding cavity;

There are three aluminum alloy protruding flanges on the aluminum alloy upper beam, and a long water-stop rubber strip is inlaid on the side of the end, which is closely attached to the side wall of the aluminum alloy lower beam, and the water-retaining decoration The cover forms a lateral drainage cavity.

A row of horizontal water-retaining decorative covers is arranged outside the horizontal drainage cavity.

The lateral drainage cavity is provided with a rear chamber, a middle chamber and a front chamber, and drainage holes are respectively arranged between the rear chamber and the middle chamber, and between the middle chamber and the front chamber.

The bottoms of the back chamber, the middle chamber and the front chamber are higher at the back and lower at the front, the rear chamber near the indoor is the highest, and the front chamber near the outdoor is the lowest.

The front chamber is provided with an outdoor drainage hole, and the outdoor drainage hole communicates with the outdoor atmosphere.

The distance between the upper and lower sides of the aluminum alloy lower beam and the aluminum alloy upper beam is 8-15 mm. The distance between the upper and lower frames of the curtain wall panels is 8 to 15 mm.

The invention has simple structure, clear paths of "water retaining", "water guiding" and "drainage" of the unitized curtain wall, and the water sealing performance of the water-stop rubber strip is reasonably utilized, and the design concept adopts the scientific principle of fluid mechanics, which is suitable for all units application of curtain walls.

Description of drawings

Fig. 1 and Fig. 2 are schematic diagrams of implementation of the water guiding cavity of the present invention.

Fig. 3 is a horizontal sectional view at the stile of the present invention.

Fig. 4 is a longitudinal sectional view of the upper and lower beams of the present invention.

Detailed ways

The description will be further described below in conjunction with specific experiments and structural drawings.

As shown in Figures 1 to 4, it includes a water-retaining seal 1, an aluminum alloy protruding flange 2, a water-stop rubber strip 3, a water-stop sponge 4, a groove 5, an aluminum alloy left column 6, and an aluminum alloy right column Stile 7, water guide cavity 8, experimental water 9, experimental sealing plate 10, sealant 11, front cavity 12, curtain wall panel 13, water-retaining decorative cover 14, aluminum alloy lower beam 15, rear cavity 16, indoor horizontal decoration Cover 17, water-retaining rubber strip 18, back chamber 19, drain hole 20, middle chamber 21, front chamber 22, aluminum alloy upper beam 23, outdoor drain outlet 24 etc.

Fig. 1, Fig. 2 are the water-guiding chamber device of the present invention, explain respectively that the water-guiding chamber becomes an equal-pressure chamber, a chamber with hydraulic pressure, and the water-tight performance of the water-stop rubber strip under laboratory conditions, including aluminum The alloy left column 6 and the aluminum alloy right column 7, the aluminum alloy right column 7 is provided with two aluminum alloy protruding flanges 2, and a long water-stop rubber strip 3 is embedded on the side of the end. The groove 5 on the aluminum alloy left column 6, the long water-stop rubber strip 3 is closely attached to the side wall of the groove 5, forming a water-retaining seal 1, and the aluminum alloy left column 6 and the aluminum alloy right column 7 encloses a water guide cavity 8, and the bottom edge of the experimental device is an experimental sealing plate 10, which is sealed with the above parts with a sealant 11 to prevent water from leaking from the bottom.

In Embodiment 1, no water is injected into the water guiding cavity 8, and the pressure inside the water guiding cavity is equal to the outside pressure at this time, and the water guiding cavity 8 can be regarded as an isobaric cavity.

Embodiment 2, change the water-stop sponge 4 in the groove 5 into a sealant 11, the side and bottom surface of the water-guiding cavity meet the water-tight requirements, slowly pour water into the upper mouth of the water-guiding cavity 8, when When the height of the experimental water 9 reaches H, the water pressure in the water guiding cavity P=HD (D is the specific gravity of the experimental water 9), at this time, the pressure in the water guiding cavity is greater than the pressure outside, and the pressure is not equal to the outside, and the leading The water cavity 8 becomes a cavity with hydraulic pressure.

Embodiment 3, drill a drainage hole on the sealing plate 10 for the experiment, drain the experimental water 9 in the water guiding cavity 8, and slowly pour water in the upper mouth of the water guiding cavity 8, and the water will flow from the experiment Use the drainage holes on the sealing plate 10 to flow out. When the water intake ≤ discharge volume, no water will accumulate in the water guide cavity 8. At this time, the water guide cavity 8 is still an equal pressure cavity. When the water intake > discharge volume, the water guide Water will slowly accumulate in the cavity 8 to form a water pressure P. At this time, the pressure in the water-guiding cavity is greater than the outside pressure, which is not equal to the outdoor pressure, and the water-guiding cavity 8 becomes a cavity with hydraulic pressure.

Embodiment 4, then change the sealant 11 of the groove 5 back to the water-stop sponge 4, plug the drain hole on the sealing plate 10 for the experiment, and slowly pour water in the upper mouth of the water-guiding cavity 8, and the water Can see through the sidewall of water-stop rubber strip 3 and groove 5 very quickly, seep out from the gap, illustrate that the water seal of rubber strip 3 and groove 5 sidewalls is unreliable.

Fig. 3 is the horizontal sectional view of the stile of the present invention in use, including an aluminum alloy left stile 6, an aluminum alloy right stile 7 and a curtain wall panel 12, and the aluminum alloy right stile 7 is provided with two aluminum alloys The protruding flange 2 is inlaid with a long water-stop rubber strip 3 on the side of the end, embedded in the groove 5 on the aluminum alloy left column 6, the long water-stop rubber strip 3 and the side wall of the groove 5 Closely fit to form a water-retaining seal 1, which forms the rear cavity 16 of the water-conducting cavity 8 with the aluminum alloy left stile 6 and the aluminum alloy right stile 7, the side frame of the curtain wall panel 13, and the protruding wing of the aluminum alloy The edge 2 and the water-retaining rubber strip 18 form the front cavity 12 of the longitudinal water-guiding cavity 8 .

Fig. 4 is the longitudinal cross-sectional view of the upper and lower beams of the present invention in use state, including the aluminum alloy lower beam 15, the aluminum alloy upper beam 23, the curtain wall panel 13 and the water-retaining decorative cover 14, and the aluminum alloy upper beam 23 is provided with three aluminum alloys. The protruding flange 2 of the alloy is inlaid with a long water-stop rubber strip 3 on the side of the end, which is closely attached to the side wall on the aluminum alloy lower beam 15, and forms a horizontal drainage cavity with the water-retaining decorative cover 14 Rear chamber 19, middle chamber 21 and front chamber 22. The aluminum alloy lower beam 15 and the aluminum alloy upper beam 23

The distance between the top and bottom of the two aluminum alloy beams is 8-15mm. The distance between the upper and lower frame ends of the curtain wall panel 13 is 8-15 mm. The indoor horizontal decorative cover 17 is buckled up for decoration after the unitized curtain wall plate is installed.

The horizontal drainage cavity is provided with a rear chamber 19, a middle chamber 21 and a front chamber 22. The bottoms of the three are higher at the rear and lower at the front, the rear chamber 19 near the indoor is the highest, the middle chamber 21 is next, and the front chamber 22 near the outdoor The lowest, between the back chamber 19 and the middle chamber 21, between the middle chamber 21 and the front chamber 22 is provided with a drain hole 20, and the outdoor drain 24 provided in the front chamber 22 communicates with the outdoor atmosphere. After the rainwater in the water guide cavity passes through the drain hole 20 between the back chamber 19 and the middle chamber 21 and between the middle chamber 21 and the front chamber 22, it is gradually discharged from the back chamber 19 to the outside through the middle chamber 21 and the front chamber 22. Since the longitudinal water guide cavity is divided into the rear cavity 16 and the front cavity 12 by the water retaining strip 1, the amount of rainwater in the front cavity 12 of the longitudinal water guide cavity is much larger than that in the rear cavity 16, and correspondingly enters the horizontal drainage The amount of rainwater in the cavity is also successively reduced by the front chamber 22, the middle chamber 21, and the rear chamber 19, which is beneficial for the largest amount of rainwater to be directly discharged to the outside through the shortest path.

A row of horizontal water-retaining decorative covers 14 are arranged outside the horizontal drainage chamber. The horizontal water-retaining decorative covers 14 have functions of water batching and water retaining in addition to decoration and sunshade functions, which can prevent the top of the drain port 24 from A large amount of rainwater forms a water curtain at the drain outlet 24 places. On the one hand, the water curtain prevents the rainwater from the drainage cavity from flowing to the outside; on the other hand, part of the rainwater in the water curtain directly enters the front chamber 22 of the horizontal drainage cavity, increasing the water volume of the drainage cavity and preventing the rainwater from entering the vertical water guiding cavity. The drainage cavity makes the water guide cavity a water storage cavity; the equal pressure cavity is transformed into a cavity with hydraulic pressure; the rainwater in the water guide cavity with hydraulic pressure overcomes the resistance of the water retaining seal and enters the room, causing rainwater Leak indoors.

The structure of the invention is simple, the "water retaining", "water guiding" and "drainage" paths of the unitized curtain wall are clear, the water sealing performance of the water-stop rubber strip is reasonably utilized, and the design concept adopts the scientific principle of fluid mechanics, which is suitable for all units application of curtain walls.

Claims (7)

1. A unitized curtain wall structure capable of improving watertightness, including aluminum alloy left stiles (6), aluminum alloy right stiles (7), aluminum alloy lower beams (15) and aluminum alloy upper beams (23). The feature is: it also includes water-stop rubber strips (3), water-retaining rubber strips (18), curtain wall panels (13), water-retaining decorative covers (14), and two An aluminum alloy protruding flange (2), inlaid with a long water-stop rubber strip (3) on the side of the end of the aluminum alloy protruding flange (2), and the water-stop rubber strip (3) is embedded in the aluminum alloy left In the groove (5) on the stile (6), the long water-stop rubber strip (3) fits closely with the side wall of the groove (5) to form a water-retaining seal (1), and the water-retaining seal ( 1) The rear cavity (16) of the longitudinal water-conducting cavity (8) is surrounded by the aluminum alloy left stile (6) and the aluminum alloy right stile (7), and the side frame of the curtain wall panel 13 and the protruding aluminum alloy The flange (2) and the water-retaining rubber strip (18) form the front cavity (12) of the longitudinal water-guiding cavity (8); Three aluminum alloy protruding flanges (2) are arranged on the aluminum alloy upper beam (23), and the sides of the ends of the aluminum alloy protruding flanges (2) are inlaid with long water-stop rubber strips (3) , and closely fit the side wall on the aluminum alloy lower beam (15), and form a horizontal drainage cavity with the water-retaining decorative cover (14). 2. A unitized curtain wall structure capable of improving water tightness according to claim 1, characterized in that: a rear chamber (19), a middle chamber (21) and a front chamber (22) are arranged in the lateral drainage cavity ), drain holes (20) are respectively set between the rear chamber (19) and the middle chamber (21), and between the middle chamber (21) and the front chamber (22). 3. A unitized curtain wall structure capable of improving water tightness according to claim 2, characterized in that: the bottom surfaces of the rear chamber (19), the middle chamber (21) and the front chamber (22) are higher at the rear and lower at the front . 4. A unitized curtain wall structure capable of improving water tightness according to claim 2, characterized in that: the front chamber (22) is provided with an outdoor drain (24), and the outdoor drain (24) is connected to the outdoor atmosphere connected. 5. A unitized curtain wall structure capable of improving water tightness according to claim 1, characterized in that: the upper and lower sides of the aluminum alloy lower beam (15) and the aluminum alloy upper beam (23) are two aluminum alloy beams The spacing is 8~15 mm. 6. A unitized curtain wall structure capable of improving water tightness according to claim 1, characterized in that: the distance between the upper and lower frame ends of the curtain wall panel (13) is 8-15 mm. 7. A unitized curtain wall structure capable of improving water tightness according to claim 1, characterized in that: a horizontal water-retaining decorative cover (14) is provided outside the horizontal drainage cavity.

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