CN117052057A - Glass fireproof skylight - Google Patents

Abstract

This application relates to the technical field of skylights, and in particular to a glass fireproof skylight, which includes: a metal window frame, which is provided with a first chamber and a second chamber. The first chamber is connected with the second chamber, and the communication point is provided with There is a hot melt part, a carbon dioxide-generating liquid is provided in the first chamber, a carbon dioxide-generating solid is provided in the second chamber, the metal window frame is also provided with discharge holes on the side walls and bottom walls corresponding to the second chamber; the glass component, It is set inside a metal window frame. When a fire occurs, this application instantly generates carbon dioxide gas through carbon dioxide-generating liquid and carbon dioxide-generating solid. The carbon dioxide gas can prevent the fire from spreading to the glass fireproof skylight, and the fire extinguishing is more timely and effective; at the same time, during the preparation process, this application does not require Setting up a relatively harsh sealing environment to prevent leakage of fire extinguishing agents makes preparation more difficult and less expensive.

Description

A kind of glass fireproof skylight

Technical field

The present application relates to the technical field of skylights, and in particular to a glass fireproof skylight.

Background technique

Skylights are usually opened on the top side of the wall. They can include glass and can be opened and closed to meet the building's ventilation, lighting and other needs. When the longitudinal spacing of the building is insufficient, the skylight should also meet the fire protection requirements to isolate and prevent the spread of fire. For example, when there is a skylight in the basement but the distance from the ground building is insufficient, the skylight has a fire protection function and can be used in the event of a basement fire. Prevent fire from jumping upward into rooms on the ground floor.

Existing glass fireproof skylights are mostly made of metal frames and glass with better fire resistance. For example, the metal frames are mostly made of fireproof steel, and the glass is mostly made of fireproof glass. The fireproof glass may be a laminated glass with a hollow chamber, and the hollow chamber may be filled with fire extinguishing agents such as silica aerogel and liquid carbon dioxide. When a fire occurs, the fire extinguishing agent in the hollow chamber overflows to prevent the fire from spreading.

However, in the existing technology, the above-mentioned fire extinguishing agents all require a relatively strict sealing environment, which requires extremely high structural strength and air tightness of glass components, and is very difficult to prepare.

Contents of the invention

In order to improve the problem in the prior art that glass fireproof skylights are difficult to prepare due to the harsh storage environment of fire extinguishing agents, this application provides a glass fireproof skylight.

This application provides a glass fireproof skylight, which includes:

Metal window frame, which is used to be installed on the top side of the wall, and is provided with a first chamber and a second chamber, the first chamber is located upward, the second chamber is located downward, and the first chamber The chamber is connected to the second chamber, and a hot melt component is provided at the connection point. A carbon dioxide-generating liquid is provided in the first chamber, a carbon dioxide-generating solid is provided in the second chamber, and the metal window frame is A discharge hole is also provided on the corresponding side wall and bottom wall of the second chamber, and the discharge hole is connected with the second chamber;

Glass components, which are arranged in the metal window frame;

Wherein, when a fire occurs, the hot-melt part is heated to connect the first chamber and the second chamber, the carbon dioxide-generating solid contacts the carbon dioxide-generating liquid to generate carbon dioxide gas, and the discharge hole At least used to discharge the carbon dioxide gas from the second chamber.

Optionally, the second chamber is also provided with a guide rail and a turntable. The turntable is arranged in an annular shape and is slidably disposed on the guide rail so as to be rotatable around its center. The carbon dioxide is generated solidly. On the turntable, an opening and closing buckle plate is provided on the side wall of the second chamber, and the opening and closing buckle plate is used to open and close the second chamber.

Optionally, a plurality of the hot-melt parts are arranged at equal intervals along the circumferential direction of the turntable, and the opening and closing buckle plates correspond to the hot-melt parts one-to-one and are arranged corresponding to the radial direction of the turntable.

Optionally, an annular groove is provided on one side of the top of the turntable, and the carbon dioxide-generating solid is placed in a mesh bag. The mesh bag is placed in the annular groove, and several holes are provided along the circumference of the turntable. The number of the mesh bags is greater than the number of the hot melt parts or the opening and closing gussets.

Optionally, a guide cover is also provided in the second chamber, the guide cover is disposed directly below the hot melt part and is configured in a flared shape, and the guide cover faces the annular groove.

Optionally, the carbon dioxide generating liquid is a citric acid solution, and the carbon dioxide generating solid is sodium bicarbonate.

Optionally, the volume of the first chamber is not less than the volume of the second chamber.

Optionally, the metal window frame is provided with a hot melt adhesive layer at a position corresponding to the discharge hole.

Optionally, the metal window frame includes an upper frame and a lower frame. The upper frame is positioned upward and the lower frame is positioned downward. A broken bridge is provided between the upper frame and the lower frame. A glass member is provided in the upper frame, and the first chamber and the second chamber are provided in the lower frame.

Optionally, the upper frame is provided with an inner frame beam and an inner frame platform. The inner frame platform is provided at the center of the upper frame. Several inner frame beams are provided along the circumferential direction, and the two ends are respectively It is connected to the upper frame and the inner frame platform, and a pressure relief valve is provided on the inner frame platform. When the pressure relief valve is opened, it connects both sides of the glass fireproof skylight.

This application provides a first chamber and a second chamber for arranging carbon dioxide-generating liquid and carbon dioxide-generating solid in a metal window frame, so that when a fire occurs, carbon dioxide gas is instantly generated through the carbon dioxide-generating liquid and carbon dioxide-generating solid, and at the same time By expelling carbon dioxide gas and gathering it under the metal window frame and glass components, the carbon dioxide gas can prevent the fire from spreading to the glass fire-resistant skylight, thereby ensuring the fire-proof function of the glass fire-resistant skylight. Compared with placing the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire in a more timely and effective manner; at the same time, during the preparation process, the present application does not need to set up a relatively harsh sealing environment to prevent the fire extinguishing agent from leaking. The difficulty and preparation cost are relatively lower.

Description of the drawings

Figure 1 is a cross-sectional view of a glass fireproof skylight provided by an embodiment of the present application.

FIG. 2 is an enlarged view of part A in FIG. 1 .

Figure 3 is an isometric view of a glass fireproof skylight provided by an embodiment of the present application.

FIG. 4 is an enlarged view of part B in FIG. 1 .

Explanation of reference signs: 100. Metal window frame; 110. Discharge hole; 200. Glass member; 300. First chamber; 400. Second chamber; 410. Guide rail; 420. Turntable; 430. Opening and closing buckle plate; 440. Ring groove; 450. Guide cover; 460. Mesh bag; 500. Hot melt parts; 600. Partition plate; 700. Upper frame; 710. Inner frame beam; 720. Inner frame platform; 730. Pressure relief valve; 800 , lower frame; 900, broken bridge parts.

Detailed ways

The present application will be further described in detail below in conjunction with Figures 1-4.

The embodiment of the present application provides a glass fireproof skylight. The glass fireproof skylight includes:

The metal window frame 100 is used to be installed on the top side of the wall, and is provided with a first chamber 300 and a second chamber 400. The first chamber 300 is located at the top, and the second chamber 400 is located at the bottom. The chamber 300 is connected with the second chamber 400, and a hot melt part 500 is provided at the connection point. The first chamber 300 is provided with a carbon dioxide-generating liquid, the second chamber 400 is provided with a carbon dioxide-generating solid, and the metal window frame 100 is placed in the first chamber 300. A discharge hole 110 is also provided on the corresponding side wall and bottom wall of the second chamber 400, and the discharge hole 110 is connected with the second chamber 400;

Glass component 200, which is arranged in the metal window frame 100;

Wherein, when a fire occurs, the hot melt part 500 is heated to connect the first chamber 300 and the second chamber 400, the carbon dioxide generating solid contacts the carbon dioxide generating liquid to generate carbon dioxide gas, and the discharge hole 110 is at least used to discharge the carbon dioxide gas. Two chambers 400.

As shown in Figures 1 and 2, in this embodiment, the metal window frame 100 can be disposed on the top side of the indoor wall, and the metal window frame 100 can be made of steel. Compared with aluminum, the metal window frame 100 can be made of steel. The material has better fire resistance. At the same time, the surface of steel can be coated with a fire retardant coating to enhance its fire resistance and reduce its abnormal deformation when heated for a long time. The metal window frame 100 can be made of profiled material, and the first cavity 300 and the second cavity 400 can be mold cavities of the metal window frame 100 . Since the first chamber 300 and the second chamber 400 need to be arranged to generate liquid carbon dioxide and solid carbon dioxide respectively, the first chamber 300 and the second chamber 400 should have relatively large volumes, which are preferably metal window frames. 100 has a relatively large mold cavity, and the metal window frame 100 can adopt structurally customized profiles.

The metal window frame 100 includes an inner side of the frame and an outer side of the frame. The glass member 200 is disposed on the inner side of the metal window frame 100, that is, "disposed within the metal window frame 100". The glass component 200 is used to meet the lighting requirements of glass fireproof skylights. It can use laminated glass, that is, the glass is provided with at least two layers, and a fireproof coating is provided between two adjacent layers of glass to enhance its fire resistance. The glass component 200 can be fixed by clamping on both sides in the metal window frame 100. At the clamping point, a fireproof tape can also be provided between the glass component 200 and the metal window frame 100, so that in the event of a fire, the glass component 200 can still be secured. Maintain the structural stability of glass fire-rated skylights.

As shown in Figures 1 and 2, within the metal window frame 100, the first chamber 300 and the second chamber 400 can be separated by a partition 600, and the partition 600 can be arranged horizontally. The hot melt part 500 is arranged on the partition 600. The hot melt part 500 can be made of hot melt adhesive and can be set in the shape of a plug at normal temperature. The partition 600 is provided with a clamping part for the hot melt part 500. perforated structure. The hot melt part 500 separates the first chamber 300 and the second chamber 400 at normal temperature. When a fire occurs indoors, the metal window frame 100 is roasted and heated up. When the hot melt part 500 reaches the hot melt temperature, it melts to connect the first chamber 300 with the second chamber 400 . The hot-melt temperature of the hot-melt part 500 needs to be lower than the boiling point of the carbon dioxide-generating liquid, and can be specifically set to 70 to 90°C.

When the first chamber 300 and the second chamber 400 are connected, the carbon dioxide in the first chamber 300 flows downward into the second chamber 400 and comes into solid contact with the carbon dioxide in the second chamber 400. To produce carbon dioxide gas through a chemical reaction. After the carbon dioxide gas is generated, due to the air pressure difference, it flows out of the second chamber 400 through the discharge hole 110 to discharge the second chamber 400. Especially when a fire occurs, the consumption of oxygen outside the metal window frame 100 increases sharply, especially the air pressure difference. obvious. After the carbon dioxide gas is discharged, it accumulates under the metal window frame 100 and the glass member 200 . When the fire tends to spread to the glass fireproof skylight, carbon dioxide gas can act as a fire extinguishing agent. The principle of fire extinguishing is: forming a sealing film in the flame to repel oxygen molecules in the air and suppress the flame. burning, thereby weakening the fire. In addition, due to the high heat absorption of carbon dioxide gas, it can also reduce the temperature of the flame, thereby extinguishing the flame.

It can be understood that the present application provides the first chamber 300 and the second chamber 400 for arranging carbon dioxide-generating liquid and carbon dioxide-generating solid in the metal window frame 100, so that when a fire occurs, the carbon dioxide-generating liquid and carbon dioxide can be When a solid occurs, carbon dioxide gas is immediately generated. At the same time, the carbon dioxide gas is discharged and collected under the metal window frame 100 and the glass component 200 . The carbon dioxide gas can prevent the fire from spreading to the glass fireproof skylight, thereby ensuring the fireproof function of the glass fireproof skylight. Compared with placing the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire in a more timely and effective manner; at the same time, during the preparation process, the present application does not need to set up a relatively harsh sealing environment to prevent the fire extinguishing agent from leaking. The difficulty and preparation cost are relatively lower.

Specifically, the second chamber 400 is also provided with a guide rail 410 and a turntable 420. The turntable 420 is arranged in an annular shape and is slidably disposed on the guide rail 410 so as to be rotatable around its center. The carbon dioxide generating solid is disposed on the turntable 420. On the side wall of the second chamber 400, an opening and closing buckle plate 430 is provided, and the opening and closing buckle plate 430 is used to open and close the second chamber 400.

As shown in FIGS. 2 and 3 , in this embodiment, the metal window frame 100 can be configured as a circular frame, and the first chamber 300 and the second chamber 400 are circular inner cavities. The turntable 420 is set as a ring; the guide rails 410 can also be set as a ring, or multiple sections can be provided at equal intervals along the circumferential direction of the turntable 420. Each section of the guide rail 410 is arc-shaped, and the multiple sections of guide rails 410 are all located on the same circular trajectory. superior. The guide rail 410 may be disposed on the bottom wall of the second chamber 400, and the turntable 420 is disposed on the guide rail 410 and is slidably disposed. When the turntable 420 slides on the guide rail 410, it can be rotated around its center, that is, the turntable 420 rotates around its center. The turntable 420 may be spaced apart from the bottom wall of the second chamber 400 to reduce sliding friction resistance. The carbon dioxide generating solid is placed on the top side of the turntable 420 to facilitate liquid contact with the carbon dioxide. Of course, the metal window frame 100 can also be configured in a rectangular shape and still have circular first chambers 300 and second chambers 400 .

The opening and closing buckle plate 430 can be disposed on a side wall of the metal window frame 100 inside the frame, and the opening and closing buckle plate 430 is used to open or close the second chamber 400 . During specific implementation, one side of the opening and closing buckle plate 430 may be rotatably connected to the side wall of the metal window frame 100, and the opposite side may be detachably connected to the side wall of the metal window frame 100; the opening and closing buckle plate 430 may also be For example, the opening buckle plate has an embedded part, and the metal window frame 100 has an opening that matches the shape of the embedded part. The second chamber 400 is opened by opening and closing the buckle plate 430 to facilitate placing the carbon dioxide generating solid on the turntable 420 . By driving the turntable 420 to rotate on the guide rail 410, the carbon dioxide generating solid can be accurately moved to just below the hot melt part 500.

It can be understood that in this embodiment, by arranging the opening buckle plate, and arranging the guide rail 410 and the turntable 420, the purpose of accurately arranging the carbon dioxide generating solid directly under the hot melt part 500 can be achieved, so that in the event of a fire, the carbon dioxide generating solid can be The liquid drops directly onto the carbon dioxide generating solid to generate carbon dioxide gas in a timely manner.

In this embodiment, the metal window frame 100 can be provided with a liquid inlet valve and a liquid discharge valve on the side wall of the first chamber 300. The air in the first chamber 300 can be discharged through the liquid inlet valve and the liquid discharge valve. And the carbon dioxide generating liquid is injected into the first chamber 300 . It should be noted that the volume of the carbon dioxide-generating liquid needs to be smaller than the volume of the first chamber 300 to avoid extrusion and deformation of the metal window frame 100 when the carbon dioxide-generating liquid freezes and expands in volume under extreme weather conditions.

More specifically, several hot melt parts 500 are arranged at equal intervals along the circumferential direction of the turntable 420 . The opening and closing buckle plates 430 correspond to the hot melt parts 500 one-to-one and are arranged corresponding to the radial direction of the turntable 420 .

As shown in Figures 1 and 2, in this embodiment, for example, twelve hot melt parts 500 can be arranged at equal intervals along the circumferential direction of the turntable 420. Similarly, the opening and closing buckle plates 430 are also provided with twelve. The radial arrangement of the opening and closing buckle plate 430 and the hot melt part 500 corresponding to the turntable 420 can be understood as: the one-to-one corresponding opening and closing buckle plate 430 and the hot melt part 500 are arranged in the same radial direction of the turntable 420 . Of course, in some embodiments, the number of hot melt parts 500 may also be two, three, four or five. Several groups of discharge holes 110 can also be arranged at equal intervals along the circumferential direction on the side wall of the metal window frame 100 , and each group of discharge holes 110 can be arranged in a rectangular array on the side wall of the metal window frame 100 . Along the circumferential direction of the metal window frame 100, several sets of discharge holes 110 and several opening buckle plates are arranged at intervals in sequence. In this embodiment, twelve groups of discharge holes 110 are provided.

It can be understood that in this embodiment, the number and position of the hot melt parts 500 and the opening and closing buckle plates 430 are set correspondingly, so that the hot melt parts 500 can be arranged in the first chamber 300 and the second chamber before the carbon dioxide is arranged to solidify. The communication point of the chamber 400; at the same time, when the hot melt part 500 fails, it is also convenient to replace the hot melt part 500 in time. The discharge holes 110 are arranged in several groups and are arranged close to the hot melt part 500 to facilitate timely discharge of the generated carbon dioxide gas.

Specifically, an annular groove 440 is provided on one side of the top of the turntable 420, and the carbon dioxide generating solid is placed in the mesh bag 460. The mesh bags 460 are provided in the annular groove 440, and several mesh bags 460 are provided along the circumferential direction of the turntable 420. The number is greater than the number of hot melt parts 500 or opening and closing buckle plates 430 .

As shown in Figures 1 and 2, in this embodiment, the carbon dioxide-generating solids can be packed into a mesh bag 460, so that the carbon dioxide-generating solids are scattered randomly and are difficult to place stably. The mesh bag 460 being disposed in the ring groove 440 can be understood as: the mesh bag 460 is at least partially embedded in the ring groove 440 so as to be limited by the side walls of the ring groove 440 and avoid falling from the top side of the turntable 420 at will. By opening the twelve opening and closing buckle plates 430, a set of twelve mesh bags 460 can be arranged at different positions in the circumferential direction of the turntable 420 at the same time. By driving the turntable 420 to rotate on the slide rail, a group of twelve mesh bags 460 in total can be arranged again. The number of arrangement groups of mesh bags 460 can be reasonably selected according to actual needs.

It can be understood that when the number of mesh bags 460 is greater than the number of hot melt parts 500 or opening and closing buckle plates 430, some of the mesh bags 460 can be arranged directly below the hot melt parts 500, and the carbon dioxide generating liquid can be directly lowered on the hot melt part 500. The carbon dioxide in this part of the mesh bag 460 is solid, and then at least part of the carbon dioxide liquid flows into the annular groove 440; the carbon dioxide liquid flowing in the annular groove 440 can contact the remaining mesh bags 460, so this embodiment The preparation amount of carbon dioxide gas can be increased to improve the fire extinguishing effect of glass fireproof skylights.

More specifically, a guide cover 450 is also disposed in the second chamber 400 . The guide cover 450 is disposed directly below the hot melt part 500 and is configured in a flared shape. The guide cover 450 faces the annular groove 440 .

As shown in Figures 1 and 2, in this embodiment, the guide cover 450 can be disposed on the partition 600, and can be detachably provided on the partition 600. For example, the partition 600 is provided with a slot. The top end of the guide cover 450 is provided with a flange, and the flange can be inserted into the slot. The guide cover 450 is disposed directly below the hot melt component 500 , and the hot melt component 500 is disposed corresponding to the inner cavity of the guide cover 450 . The guide cover 450 is arranged in a flared shape, that is, the diameter of the bottom end of the guide cover 450 is larger than the diameter of the top end of the guide cover 450 . The bottom end of the guide cover 450 faces the annular groove 440 .

It can be understood that when the hot-melt part 500 is hot-melted to connect the first chamber 300 and the second chamber 400, the carbon dioxide-generating liquid can pass through the guide cover 450 and flow toward the annular groove 440, and the guide cover 450 can The carbon dioxide generating liquid plays a guiding role, especially when the shape of the hot melt part 500 is irregular, thereby reducing the waste of the carbon dioxide generating liquid that is directly discharged without reacting with the carbon dioxide solid.

Specifically, the carbon dioxide-generating liquid citric acid solution and the carbon dioxide-generating solid are sodium bicarbonate.

In this embodiment, sodium bicarbonate is exemplified as a white crystalline powder, odorless, salty in taste, and easily soluble in water. At high temperatures, at least part of the sodium bicarbonate decomposes to generate sodium carbonate and carbon dioxide gas. When a citric acid solution is further added, both sodium carbonate and unreacted sodium bicarbonate react chemically with citric acid to further generate citric acid. sodium and carbon dioxide.

It can be understood that in this embodiment, carbon dioxide gas is obtained through citric acid solution and sodium bicarbonate. When the metal window frame 100 is in the initial stage of a fire, the metal window frame 100 can cause the sodium bicarbonate to decompose due to heat to obtain carbon dioxide gas. , and when the hot melt part 500 is melted and the citric acid solution is further added, the amount of carbon dioxide gas generated further increases. Therefore, this embodiment can have a longer process of preventing the fire from spreading, and the fire prevention effect is better.

More specifically, the volume of the first chamber 300 is not less than the volume of the second chamber 400 .

As shown in Figures 1 and 2, in this embodiment, as an example, since the second chamber 400 is also equipped with a guide rail 410, a turntable 420 and a mesh bag 460 containing carbon dioxide generating solids, when the first chamber 400 is When the volume of the chamber 300 is not less than the volume of the second chamber 400, the carbon dioxide liquid in the first chamber 300 flows into the annular groove 440 of the turntable 420 and the sodium citrate solution obtained after solid reaction with the carbon dioxide will inevitably continue. The overflowed sodium citrate solution can be discharged from the discharge hole 110 outside the annular groove 440 to play a spraying role, thereby further improving the fire extinguishing effect.

More specifically, the metal window frame 100 is provided with a hot melt adhesive layer at a position corresponding to the discharge hole 110 .

As shown in Figures 1 and 2, in this embodiment, it is illustratively explained that since sodium bicarbonate will also react chemically when it meets water, in order to prevent sodium bicarbonate from reducing the production of carbon dioxide gas due to the presence of moisture in the air To achieve the desired effect, the second chamber 400 also needs to be sealed at room temperature. In this embodiment, the hot-melt adhesive layer is used for sealing at room temperature. The hot-melt adhesive layer can be coated with hot-melt adhesive, which can seal the discharge hole 110 at normal temperature. In the event of a fire, it can be melted at high temperature to open the discharge hole 110 in time. At the same time, it is not difficult to understand that when the hot melt adhesive layer reaches the hot melt temperature, the sodium bicarbonate in the second chamber 400 decomposes at high temperature to produce carbon dioxide gas, and the pressure in the second chamber 400 increases; when After the hot melt adhesive layer is melted, the pressurized carbon dioxide gas has the effect of being ejected, and can be diffused into a wider space, such as the middle position of the metal window frame 100 .

Specifically, the metal window frame 100 includes an upper frame 700 and a lower frame 800. The upper frame 700 is located above and the lower frame 800 is located below. A bridge breaking member 900 is provided between the upper frame 700 and the lower frame 800. The glass component 200 is provided between the upper frame 700 and the lower frame 800. Within the upper frame 700 , the first chamber 300 and the second chamber 400 are provided in the lower frame 800 .

As shown in FIGS. 3 and 4 , in this embodiment, the upper frame 700 is used to arrange the glass component 200 , and the lower frame 800 is used to set the first chamber 300 and the second chamber 400 . Since only the lower frame 800 needs to be heated when a fire occurs, in order to reduce the impact on the upper frame 700 , the upper frame 700 and the lower frame 800 are separated by the bridge breaking member 900 . Both ends of the broken bridge 900 are connected to the upper frame 700 and the lower frame 800 respectively. They can be made of materials with high temperature resistance and low thermal conductivity to serve as a "broken bridge" structure for heat conduction, thereby preventing the lower frame 800 from The received heat is transferred to the upper frame 700 .

It can be understood that in this embodiment, by arranging the metal window frame 100 as the upper frame 700 and the lower frame 800 to perform functional partitioning, the structural stability of the glass fireproof skylight can be ensured.

More specifically, the upper frame 700 is provided with an inner frame beam 710 and an inner frame platform 720. The inner frame platform 720 is arranged at the center of the upper frame 700. Several inner frame beams 710 are provided along the circumferential direction, and the two ends thereof are respectively connected with the upper frame. The frame 700 is connected to the inner frame platform 720. The inner frame platform 720 is provided with a pressure relief valve 730. When the pressure relief valve 730 is opened, it communicates with both sides of the glass fireproof skylight.

In this embodiment, for example, the inner frame platform 720 can be configured as a circular cone and is located at the center of the upper frame 700 . The inner frame beams 710 can be arranged along the radial direction of the upper frame 700 , and there are several inner frame beams 710 arranged at equal intervals along the circumferential direction. The inner frame beams 710 are used to connect the inner frame platform 720 and the upper frame 700 . The glass member 200 may be arranged in a fan shape, and is arranged in a fan-shaped space enclosed by the inner frame platform 720 , the upper frame 700 and several inner frame beams 710 . The pressure relief valve 730 is installed on the round platform and connects both sides of the glass fireproof skylight when opened.

It can be understood that in this embodiment, by arranging the pressure relief valve 730, when the indoor pressure is relatively high, the indoor and outdoor can be connected to relieve indoor pressure, thereby reducing potential safety risks in the event of an indoor fire.

The implementation principle of a glass fireproof skylight provided by the embodiment of this application is:

When a fire breaks out in the room, the lower frame 800 is heated, and the carbon dioxide solid decomposes at high temperature to produce carbon dioxide gas. As the temperature of the lower frame 800 increases, the hot melt part 500 melts to connect the first chamber 300 and the second chamber 400, and the hot melt glue layer melts to open the discharge hole 110. The carbon dioxide generating liquid in the first chamber 300 passes through the guide cover 450 and flows into the second chamber 400 . The carbon dioxide generating liquid drops on the carbon dioxide generating solid located directly below the hot melt part 500, and then flows to other carbon dioxide generating solids through the annular groove 440. The carbon dioxide generating liquid reacts with the carbon dioxide generating liquid to continue to generate carbon dioxide gas. The carbon dioxide gas is ejected from the discharge hole 110 and gathered directly under the metal window frame 100 and the glass member 200. The reacted solution is ejected from the discharge hole 110 to Implement spraying.

This application provides a first chamber 300 and a second chamber 400 for arranging carbon dioxide-generating liquid and carbon dioxide-generating solid in the metal window frame 100, so that when a fire occurs, carbon dioxide is instantly generated through the carbon dioxide-generating liquid and carbon dioxide-generating solid. At the same time, the carbon dioxide gas is discharged and accumulated under the metal window frame 100 and the glass component 200. The carbon dioxide gas can prevent the fire from spreading to the glass fireproof skylight, thereby ensuring the fireproof function of the glass fireproof skylight. Compared with placing the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire in a more timely and effective manner; at the same time, during the preparation process, the present application does not need to set up a relatively harsh sealing environment to prevent the fire extinguishing agent from leaking. The difficulty and preparation cost are relatively lower.

The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be covered by the scope of protection of the present application. Inside.

Claims (10)

1. A glass fire resistant skylight, the glass fire resistant skylight comprising:

the metal window frame (100) is used for being arranged on one side of a wall top and is provided with a first chamber (300) and a second chamber (400), the first chamber (300) is arranged at the upper position, the second chamber (400) is arranged at the lower position, the first chamber (300) is communicated with the second chamber (400), a hot melting piece (500) is arranged at the communicating position, carbon dioxide generating liquid is arranged in the first chamber (300), carbon dioxide generating solid is arranged in the second chamber (400), the metal window frame (100) is further provided with a discharge hole (110) on the side wall and the bottom wall corresponding to the second chamber (400), and the discharge hole (110) is communicated with the second chamber (400);

a glass member (200) disposed within the metal window frame (100);

wherein, when a fire occurs, the hot-melt member (500) is hot-melted to communicate the first chamber (300) and the second chamber (400), the carbon dioxide generating solid contacts with the carbon dioxide generating liquid to generate carbon dioxide gas, and the discharge hole (110) is at least used for discharging the carbon dioxide gas out of the second chamber (400).

2. The glass fireproof skylight of claim 1, wherein a guide rail (410) and a turntable (420) are further arranged in the second chamber (400), the turntable (420) is arranged in a ring shape and is slidably arranged on the guide rail (410) so as to be rotatably arranged around the center of a circle, the carbon dioxide generating solid is arranged on the turntable (420), an opening and closing buckle plate (430) is arranged on the side wall of the second chamber (400), and the opening and closing buckle plate (430) is used for opening and closing the second chamber (400).

3. The glass fireproof skylight of claim 2, wherein the hot-melt pieces (500) are equidistantly arranged along the circumferential direction of the turntable (420), and the opening and closing buckle plates (430) are in one-to-one correspondence with the hot-melt pieces (500) and are arranged corresponding to the radial direction of the turntable (420).

4. A glass fire-proof skylight according to claim 3, characterized in that a ring groove (440) is provided on one side of the top of the turntable (420), the carbon dioxide generating solid is provided in a mesh bag (460), the mesh bag (460) is provided in the ring groove (440), and a plurality of mesh bags (460) are provided along the circumference of the turntable (420), and the number of mesh bags (460) is greater than the number of hot melt pieces (500) or the opening and closing buckle plates (430).

5. The glass fire-proof skylight of claim 4, wherein a guiding cover (450) is further disposed in the second chamber (400), the guiding cover (450) is disposed directly under the hot-melt member (500) and is configured in a flared shape, and the guiding cover (450) faces the ring groove (440).

6. The glass fire resistant skylight of claim 1, wherein the carbon dioxide generating liquid is a citric acid solution and the carbon dioxide generating solid is sodium bicarbonate.

7. The glass fire roof window according to claim 6, wherein the volume of the first chamber (300) is not smaller than the volume of the second chamber (400).

8. The glass fire-proof skylight of claim 6, wherein the metal window frame (100) is provided with a hot melt adhesive layer at a position corresponding to the discharge hole (110).

9. The glass fire roof window according to claim 1, wherein the metal window frame (100) comprises an upper frame (700) and a lower frame (800), the upper frame (700) is located at an upper position, the lower frame (800) is located at a lower position, a bridge-cut-off member (900) is arranged between the upper frame (700) and the lower frame (800), the glass member (200) is arranged in the upper frame (700), and the first chamber (300) and the second chamber (400) are arranged in the lower frame (800).

10. The glass fireproof skylight of claim 9, wherein an inner frame beam (710) and an inner frame table (720) are arranged in the upper frame (700), the inner frame table (720) is arranged in the center of the upper frame (700), a plurality of inner frame beams (710) are arranged along the circumferential direction, two ends of each inner frame beam (710) are respectively connected with the upper frame (700) and the inner frame table (720), a pressure release valve (730) is arranged on the inner frame table (720), and the pressure release valves (730) are communicated with two sides of the glass fireproof skylight when being opened.