A flame retardant building curtain wall

Abstract

A building curtain wall with flame retardant function is used to solve the technical problem that when the curtain wall encounters flame, only a thin flame retardant layer on one side cannot completely isolate the flame. If the fire is large and the flame is attached to the wall, the combustion of the curtain wall panel will be faster. The invention comprises a frame, the frame is connected to the wall, and the other side of the frame is used to install the curtain wall panel. A horizontal mounting block is installed on the surface of the frame, and a vertical mounting block is installed at both ends of the horizontal mounting block. The curtain wall panel is fixed on the two vertical mounting blocks, and a first cavity is formed between the curtain wall panel and the two vertical mounting blocks. An isolation plate is fixed on the two vertical mounting blocks. A pull rod assembly is installed in the bottom of the first cavity and in two first horizontal through grooves and one vertical through groove. A carbon dioxide spray assembly is installed in the second cavity. The pull rod assemblies are correspondingly passed through the two first horizontal through grooves and the vertical through groove in sequence and abut against the carbon dioxide spray assembly.

Description

Technical Field

[0001] The invention relates to the technical field of curtain walls, and in particular to a building curtain wall with flame retardant function. Background Art

[0002] Curtain wall is the outer wall of the building, which is non-load-bearing and is hung like a curtain, so it is also called "curtain wall". It is a lightweight wall with decorative effect commonly used in modern large and high-rise buildings. It is composed of panels and supporting structure systems, and can have a certain displacement ability relative to the main structure or a certain deformation ability itself, and is an external protective structure or decorative structure of the building that does not bear the effects of the main structure.

[0003] In the prior art, a utility model patent document with authorization announcement number "CN 213296813 U" and patent name "A curtain wall with high strength and good flame retardant performance" discloses a curtain wall with high strength and good flame retardant performance, including a frame, a spring is fixedly connected to the left side of the frame inner cavity, a movable plate is fixedly connected to the end of the spring away from the frame, an angle steel frame is fixedly connected to the side of the movable plate away from the spring, an L-shaped fastener is fixedly connected to the right side of the front of the angle steel frame, a curtain wall body is fixedly connected to the right side of the L-shaped fastener, the curtain wall body includes a base surface layer, a water absorption layer is fixedly connected to one side of the base surface layer, a flame retardant layer is fixedly connected to the side of the water absorption layer away from the base surface layer, and sliding grooves are provided at the top and bottom of the frame inner cavity.

[0004] The above patent document type achieves a certain degree of flame retardancy through the coordinated use of a frame, a spring, a water-absorbing layer and a flame retardant layer. However, when the curtain wall encounters a flame, the thin flame retardant layer on one side cannot completely isolate the flame. If the fire is large and the flame is already attached to the wall, the combustion of the curtain wall panel will expand more quickly. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and to propose a flame-retardant building curtain wall to solve the technical problem that when the curtain wall encounters a flame, a thin flame-retardant layer on one side alone cannot completely isolate the flame, and if the fire is large and the flame has already attached to the wall, the combustion of the curtain wall panels will be expanded more quickly.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A flame retardant building curtain wall comprises a frame, the frame is connected to a wall, the other side of the frame is used to install a curtain wall panel, a horizontal mounting block is installed on the surface of the frame, and two countersunk holes are provided on a side of the horizontal mounting block away from the wall, a vertical mounting block is installed at each end of the horizontal mounting block, and two first self-tapping screws are respectively provided, the two first self-tapping screws pass through the horizontal mounting block and respectively pass through the two countersunk holes and are screwed to the wall, curtain wall panels are fixed on the two vertical mounting blocks, and a first cavity is formed between the curtain wall panel and the two vertical mounting blocks, an expanded graphite plate is bonded and installed on one side of the first cavity close to the horizontal mounting block, and one of the vertical mounting blocks is provided with two first horizontal passages A groove and a vertical groove, the two first horizontal grooves are both opened on the upper and lower sides of the vertical mounting block, the vertical groove is arranged between the two first horizontal grooves and is conductively connected with the two first horizontal grooves, an isolation plate is fixed on the two vertical mounting blocks, a second cavity is arranged in the isolation plate, the first horizontal groove close to the wall side is conductively connected with the second cavity, the first horizontal groove away from the wall side is conductively connected with the first cavity, a pull rod assembly is arranged at the bottom of the first cavity and in the two first horizontal grooves and a vertical groove, a carbon dioxide spray assembly is installed in the second cavity, the pull rod assemblies are correspondingly passed through the two first horizontal grooves and the vertical groove in sequence and abut against the carbon dioxide spray assembly.

[0008] Working principle:

[0009] The construction workers first fix the frame on one side of the wall, and then fix the horizontal mounting block on the frame, and then respectively penetrate the two first self-tapping screws through the two countersunk holes and penetrate the frame and then drill into the wall, and then the construction workers fix the two vertical mounting blocks on both sides of the horizontal mounting block;

[0010] Then the construction workers install the expanded graphite plate and the carbon dioxide spray assembly in the first cavity, and then fix one end of the tie rod assembly to the carbon dioxide spray assembly, and the other end of the tie rod assembly is fixedly connected to the inner wall of one of the vertical mounting blocks. Then the construction workers fix the two ends of the curtain wall panel on the two ends of the two vertical mounting blocks. In this way, when the curtain wall panel encounters open flame combustion, the flame body can be flame-retarded in time through the cooperation of the tie rod assembly and the carbon dioxide spray assembly, so as to achieve the purpose of isolating and flame-retarding the flame.

[0011] The beneficial effects of the present invention are:

[0012] Compared with the prior art and the flame retardant effect of some curtain wall panels after installation, the construction workers install the expanded graphite plate and the carbon dioxide spray assembly in the first cavity, and then fix one end of the tie rod assembly to the carbon dioxide spray assembly, and the other end of the tie rod assembly is fixedly connected to the inner wall of one of the vertical mounting blocks, and then the construction workers fix the two ends of the curtain wall panel on the two ends of the two vertical mounting blocks. In this way, when the curtain wall panel encounters open flame combustion, it can spray carbon dioxide gas under normal pressure to achieve a cooling effect, and at the same time reduce the oxygen concentration around the combustible material and the protective space while cooling, thereby preventing combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0015] Explanation of the accompanying drawings: skeleton 1, isolation plate 2, horizontal mounting block 3, countersunk hole 4, vertical mounting block 5, first self-tapping screw 6, first cavity 7, expanded graphite plate 8, first horizontal through groove 9, first air guide hole 10, vertical through groove 11, second cavity 12, telescopic spring 13, second air guide hole 14, horizontal pull rod 15, third air guide hole 16, carbon dioxide tank 17, L-shaped connecting plate 18, movable plate 19, first sealing ring 20, second sealing ring 21, honeycomb aluminum plate 24, sodium bicarbonate 25, snap-in groove 26, sound insulation board 28, second self-tapping screw 29, cotton rope 31, curtain wall panel 34. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 and Figure 2As shown, a flame retardant building curtain wall comprises a frame 1, which is connected to a wall, and the other side of the frame 1 is used to install a curtain wall panel 34. A horizontal mounting block 3 is installed on the surface of the frame 1, and two countersunk holes 4 are provided on the side of the horizontal mounting block 3 away from the wall. A vertical mounting block 5 is installed at each end of the horizontal mounting block 3, and two first self-tapping screws 6 are provided. The two first self-tapping screws 6 pass through the horizontal mounting block 3 and respectively pass through the two countersunk holes 4 and are screwed to the wall. Curtain wall panels 34 are fixedly arranged on the two vertical mounting blocks 5, and a first cavity 7 is formed between the curtain wall panels 34 and the two vertical mounting blocks 5. An expanded graphite plate 8 is bonded and installed on one side of the first cavity 7 close to the horizontal mounting block 3. Two first horizontal through grooves 9 and a vertical through groove 11 are provided on one of the vertical mounting blocks 5. The two first horizontal through grooves 9 are both provided on the upper and lower sides of the vertical mounting block 5, and the vertical through grooves 11 are provided on the two vertical mounting blocks 5. An isolation plate 2 is fixedly arranged between the first transverse through grooves 9 and is conductively connected with the two first transverse through grooves 9, and a second cavity 12 is arranged in the isolation plate 2. The first transverse through groove 9 close to the wall side is conductively connected with the second cavity 12, and the first transverse through groove 9 far from the wall side is conductively connected with the first cavity 7. A pull rod assembly is arranged at the bottom of the first cavity 7 and in the two first transverse through grooves 9 and a vertical through groove 11, and the pull rod assembly includes a plurality of telescopic springs 13, a transverse pull rod 15 and a cotton rope 31, one end of the transverse pull rod 15 is in contact with the carbon dioxide spray assembly, a plurality of the telescopic springs 13 are fixedly arranged on one side of the transverse pull rod 15 and are fixedly connected with the side wall of the vertical through groove 11, a plurality of the telescopic springs 13 are in a stretched state, one end of the cotton rope 31 is fixedly connected with the other end of the transverse pull rod 15, and the other end of the cotton rope is fixedly arranged on the vertical mounting block 5 opposite to the transverse pull rod 15.

[0018] The construction personnel first fix the frame 1 on one side of the wall, and then fix the horizontal mounting block 3 on the frame 1, and then respectively penetrate the two countersunk holes 4 and penetrate the frame 1 and drill into the wall, and then the construction personnel fix the two vertical mounting blocks 5 on both sides of the horizontal mounting block 3; then the construction personnel install the expanded graphite plate 8 and the carbon dioxide spray assembly in the first cavity 7, and then the construction personnel fix one end of the pull rod assembly to the carbon dioxide spray assembly. When the outer curtain wall panel 34 encounters fire When the flame burns, the curtain wall panel 34 is eroded by the flame and slowly burned through, and the cotton rope 31 is burned off. At this time, the tension of the several telescopic springs 13 located in the vertical through groove 11 is released instantly. At this time, the tension contraction of the telescopic spring 13 directly drives the transverse pull rod 15 to move, and the other end of the transverse pull rod 15 drives the carbon dioxide spray assembly to spray and release. In this way, when the curtain wall panel 34 encounters open flame combustion, the flame body can be flame-retarded in time through the cooperation of the pull rod assembly and the carbon dioxide spray assembly, so as to achieve the purpose of isolating and flame-retarding the flame.

[0019] like Figure 1 and Figure 2 As shown, a carbon dioxide spray assembly is installed in the second cavity 12, and the carbon dioxide spray assembly includes a carbon dioxide tank body 17, an L-shaped connecting plate 18, a movable plate 19, two first sealing rings 20 and a plurality of second sealing rings 21. The carbon dioxide tank body 17 is installed in the second cavity 12, one end of the L-shaped connecting plate 18 slides through the carbon dioxide tank body 17 and the isolation plate 2 at the same time and is fixedly connected to the other end of the transverse tie rod 15, the other end of the L-shaped connecting plate 18 is fixedly connected to the movable plate 19, and the two first sealing rings 20 are respectively sleeved on the L-shaped connecting plate 18 and are respectively located at On the inner and outer sides of the carbon dioxide tank body 17; when flame retardancy is required, the movable plate 15 is translated to the bottom of the carbon dioxide tank body 17, and a plurality of first air guide holes 10 are opened on the movable plate 19, a plurality of second air guide holes 14 are opened on the carbon dioxide tank body 17, and a plurality of third air guide holes 16 are opened on the isolation plate 2 and are simultaneously communicated with the plurality of first air guide holes 10 and the plurality of second air guide holes 14; in the closed state, a plurality of second sealing rings 21 are fixedly arranged at the bottom of the movable plate 19, and the plurality of second sealing rings 21 are all closed with the plurality of second air guide holes 14.

[0020] When the flame spreads to the curtain wall panel 34 and burns on the curtain wall panel 34, the transverse pull rod 15 drives one side of the L-shaped connecting plate 18 to move the first several air guide holes on the L-shaped connecting plate 18 and the second several air guide holes 14 on the carbon dioxide tank body 17 and the third several air guide holes 16 on the bottom of the isolation plate 2. In this way, carbon dioxide is sprayed out. The continuously sprayed carbon dioxide reduces the temperature of one side of the burning curtain wall panel 34 and reduces the oxygen concentration in the surrounding area, so as to achieve flame isolation and flame retardancy. The first sealing ring 20 and the second sealing ring 21 are set to effectively prevent carbon dioxide from leaking from the carbon dioxide tank body 17.

[0021] like Figure 1 and Figure 2 As shown, it also includes a honeycomb aluminum plate 24 and sodium bicarbonate 25. A clamping groove 26 is respectively provided in the two vertical mounting blocks 5. The translation direction of the clamping groove 26 is perpendicular to the vertical through groove 11. Two clamping grooves 26 are respectively passed through the two ends of the honeycomb aluminum plate 24. The sodium bicarbonate 25 is adhered to the honeycomb hole wall of the honeycomb aluminum plate 24 in powder form. It also includes a sound insulation board 28, which is arranged in the frame 1. It also includes two second self-tapping screws 29, which are respectively passed through the corresponding vertical mounting blocks 5 and are evenly screwed to the horizontal mounting block 3. The bottoms of the two second self-tapping screws 29 are flush with the bottom textures of the two vertical mounting blocks 5.

[0022] The honeycomb aluminum plate 24 can provide a certain degree of thermal insulation, and when the combustion temperature is too high and burns onto the honeycomb aluminum plate 24, the sodium bicarbonate 25 powder in the honeycomb aluminum plate 24 generates carbon dioxide when heated. At this time, the carbon dioxide generated by the combustion heat can also reduce the temperature of one side of the burning curtain wall panel 34 and reduce the oxygen concentration in the surrounding area, thereby achieving flame isolation and flame retardancy. The two second self-tapping screws 29 can stably install the two vertical mounting blocks 5.

[0023] Working principle:

[0024] The construction personnel first fix the frame 1 on one side of the wall, and then fix the horizontal mounting block 3 on the frame 1, and then respectively penetrate the two countersunk holes 4 and the frame 1 and drill into the wall, and then the construction personnel fix the two vertical mounting blocks 5 on both sides of the horizontal mounting block 3; then the construction personnel install the expanded graphite plate 8 and the carbon dioxide spray assembly in the first cavity 7, and then the construction personnel fix one end of the pull rod assembly to the carbon dioxide spray assembly. When the side curtain wall panel 34 encounters flame combustion, the curtain wall panel 34 is eroded by the flame and slowly burned through, and the cotton rope 31 is burned off. At this time, the tension of the multiple telescopic springs 13 located in the vertical through groove 11 is instantly released. At this time, the tension contraction of the telescopic spring 13 directly drives the transverse pull rod 15 to move. When the flame spreads to the curtain wall panel 34 and burns on the curtain wall panel 34, the transverse pull rod 15 drives one side of the L-shaped connecting plate 18 to move the multiple first to the air guide holes on the L-shaped connecting plate 18 and simultaneously connects with the multiple second on the carbon dioxide tank 17. The air guide holes 14 and several third air guide holes 16 on the bottom of the isolation plate 2 are connected to each other, and carbon dioxide is sprayed out in this way. The continuously sprayed carbon dioxide reduces the temperature of one side of the burning curtain wall panel 34 and reduces the oxygen concentration in the surrounding area, so as to achieve flame isolation and flame retardancy. The first sealing ring 20 and the second sealing ring 21 can effectively prevent carbon dioxide from leaking from the carbon dioxide tank 17. In this way, the curtain wall panel 34 can achieve the purpose of flame isolation and flame retardancy when encountering open flame combustion. The honeycomb aluminum plate 24 can be used for certain temperature insulation, and when the combustion temperature is too high and burns to the honeycomb aluminum plate 24, the sodium bicarbonate 25 powder in the honeycomb aluminum plate 24 generates carbon dioxide when heated. At this time, the carbon dioxide generated by the combustion and heat can also reduce the temperature of one side of the burning curtain wall panel 34 and reduce the oxygen concentration in the surrounding area, so as to achieve flame isolation and flame retardancy. The two second self-tapping screws 29 can be used to stably install the two vertical mounting blocks 5.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A flame retardant building curtain wall, comprising a frame (1), the frame (1) being connected to a wall, the other side of the frame (1) being used for mounting a curtain wall panel (34), characterized in that: The frame (1) is provided with a transverse mounting block (3) on the surface thereof, and two countersunk holes (4) are provided on a side of the transverse mounting block (3) away from the wall. A vertical mounting block (5) is respectively provided at both ends of the transverse mounting block (3), and the frame (1) further comprises two first self-tapping screws (6). The two first self-tapping screws (6) pass through the transverse mounting block (3) and respectively pass through the two countersunk holes (4) and are screwed to the wall. Curtain wall panels (34) are fixedly provided on the two vertical mounting blocks (5), and a first cavity (7) is formed between the curtain wall panels (34) and the two vertical mounting blocks (5). An expanded graphite plate (8) is bonded and installed on one side of the first cavity (7) close to the transverse mounting block (3). Two first transverse through grooves (9) and a vertical through groove (11) are formed on one of the vertical mounting blocks (5); the two first transverse through grooves (9) are formed on the upper and lower sides of the vertical mounting block (5); the vertical through groove (11) is arranged between the two first transverse through grooves (9) and is conductively connected to the two first transverse through grooves (9); isolation plates (2) are fixedly provided on the two vertical mounting blocks (5); a second cavity (12) is provided in the isolation plates (2); the first transverse through groove (9) on the side close to the wall is conductively connected to the second cavity (12); the first transverse through groove (9) on the side far from the wall is conductively connected to the first cavity (7); the bottom of the first cavity (7) is connected to the two first transverse through grooves (9); A pull rod assembly is installed in the transverse through groove (9) and a vertical through groove (11), and the pull rod assembly includes a plurality of telescopic springs (13), a transverse pull rod (15) and a cotton rope (31). One end of the transverse pull rod (15) is in contact with the carbon dioxide spray assembly. A plurality of the telescopic springs (13) are fixed on one side of the transverse pull rod (15) and are fixedly connected to the side wall of the vertical through groove (11). A plurality of the telescopic springs (13) are in a stretched state. One end of the cotton rope (31) is fixedly connected to the other end of the transverse pull rod (15), and the other end of the cotton rope is fixedly installed on a vertical mounting block (5) opposite to the transverse pull rod (15). The second cavity (12) is A carbon dioxide spray assembly is installed, the carbon dioxide spray assembly comprising a carbon dioxide tank body (17), an L-shaped connecting plate (18), a movable plate (19), two first sealing rings (20) and a plurality of second sealing rings (21); the carbon dioxide tank body (17) is arranged in the second cavity (12); one end of the L-shaped connecting plate (18) slides through the carbon dioxide tank body (17) and the isolation plate (2) at the same time and is fixedly connected to the other end of the transverse tie rod (15); the other end of the L-shaped connecting plate (18) is fixedly connected to the movable plate (19); the two first sealing rings (20) are respectively sleeved on the L-shaped connecting plate (18) and are respectively located on the inner side and the outer side of the carbon dioxide tank body (17); When flame retardancy is required, the movable plate (19) is translated at the bottom of the carbon dioxide tank body (17), and a plurality of first air guide holes (10) are provided on the movable plate (19), a plurality of second air guide holes (14) are provided on the carbon dioxide tank body (17), and a plurality of third air guide holes (16) are provided on the isolation plate (2) and are in communication with the plurality of first air guide holes (10) and the plurality of second air guide holes (14); In the closed state, a plurality of second sealing rings (21) are fixedly arranged at the bottom of the movable plate (19), and the plurality of second sealing rings (21) are all closed with a plurality of second air guide holes (14), and the pull rod assembly passes through the two first transverse through grooves (9) and the vertical through groove (11) in sequence and abuts against the carbon dioxide spray assembly.

2. The flame retardant building curtain wall according to claim 1, characterized in that: It also includes a honeycomb aluminum plate (24) and sodium bicarbonate (25). A clamping groove (26) is provided in each of the two vertical mounting blocks (5). The translation direction of the clamping groove (26) is perpendicular to the vertical through groove (11). Two ends of the honeycomb aluminum plate (24) are respectively penetrated by the two clamping grooves (26). The sodium bicarbonate (25) is in powder form and adheres to the honeycomb hole wall of the honeycomb aluminum plate (24).

3. The flame retardant building curtain wall according to claim 1, characterized in that: It also includes a sound insulation board (28), wherein the sound insulation board (28) is arranged in the transverse mounting block (3).

4. The flame retardant building curtain wall according to claim 1, characterized in that: It also includes two second self-tapping screws (29), which are respectively passed through corresponding vertical mounting blocks (5) and are evenly screwed to the horizontal mounting blocks (3).

5. The flame retardant building curtain wall according to claim 1, characterized in that: The bottoms of the two second self-tapping screws (29) are flush with the bottoms of the two vertical mounting blocks (5).

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