A glass fireproof skylight

Abstract

The present application relates to the technical field of skylights, and in particular to a glass fireproof skylight, comprising: a metal window frame, which is provided with a first chamber and a second chamber, the first chamber is connected to the second chamber, and a hot melt 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 also provided with a discharge hole on the side wall and bottom wall corresponding to the second chamber; a glass component, which is provided in the metal window frame. In the present application, when a fire occurs, carbon dioxide gas is instantly generated by the carbon dioxide generating liquid and the carbon dioxide generating solid, and the carbon dioxide gas can be used to prevent the fire from spreading to the glass fireproof skylight, and the fire is extinguished more promptly and effectively; at the same time, in the preparation process, the present application does not need to set a relatively strict sealing environment to prevent the leakage of the fire extinguishing agent, and the preparation difficulty and preparation cost are relatively lower.

Description

Technical Field

[0001] The present application relates to the technical field of skylights, and in particular to a glass fireproof skylight. Background Art

[0002] Skylights are usually located on one side of the top of the wall. They can include glass and can be opened and closed to meet the ventilation and lighting needs of the building. When the vertical spacing of the building is insufficient, the skylight should also meet the fire prevention requirements to isolate and prevent the spread of fire. For example, when a skylight is opened in the basement and the distance from the ground building is insufficient, the skylight has a fire prevention function and can prevent the fire from spreading upward into the ground room in the event of a basement fire.

[0003] Existing glass fireproof skylights are mostly made of metal frames and glass with good 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 can be a laminated glass with a hollow chamber, and the hollow chamber can 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.

[0004] However, in the prior art, the aforementioned fire extinguishing agents all require a relatively strict sealing environment, and have extremely high requirements on the structural strength and air tightness of glass components, which makes their preparation quite difficult. Summary of the invention

[0005] 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, the present application provides a glass fireproof skylight.

[0006] The present application provides a glass fireproof skylight, the glass fireproof skylight comprising:

[0007] A metal window frame, which is used to be arranged on one side of the top of the wall, and is provided with a first chamber and a second chamber, the first chamber is located at the top, and the second chamber is located at the bottom, the first chamber is connected to the second chamber, and a hot melt is provided at the connection point, a carbon dioxide generating liquid is provided in the first chamber, and a carbon dioxide generating solid is provided in the second chamber, and the metal window frame is further provided with a discharge hole on the side wall and the bottom wall corresponding to the second chamber, and the discharge hole is connected to the second chamber;

[0008] A glass component, which is arranged in the metal window frame;

[0009] Wherein, when a fire occurs, the hot melt component is hot-melted to connect the first chamber and the second chamber, the carbon dioxide solid is in contact with the carbon dioxide liquid to produce carbon dioxide gas, and the exhaust hole is at least used to exhaust the carbon dioxide gas from the second chamber.

[0010] Optionally, a guide rail and a turntable are further provided in the second chamber. The turntable is arranged in a ring shape and is slidably arranged on the guide rail so as to be rotatable around its center. The carbon dioxide generating solid is arranged on the turntable. An opening and closing buckle plate is arranged on the side wall of the second chamber, and the opening and closing buckle plate is used to open and close the second chamber.

[0011] Optionally, a plurality of hot-melt components are arranged at equal intervals along the circumference of the turntable, and the opening and closing buckle plates correspond to the hot-melt components one by one and are arranged corresponding to the radial direction of the turntable.

[0012] Optionally, an annular groove is provided on one side of the top of the turntable, and the carbon dioxide generating solid is arranged in a mesh bag, the mesh bag is arranged in the annular groove, and several mesh bags are arranged along the circumference of the turntable, and the number of the mesh bags is greater than the number of the hot melt parts or the opening and closing buckle plates.

[0013] Optionally, a guide cover is further provided in the second chamber. The guide cover is provided directly below the hot melt component and is configured to be in a flared shape, and the guide cover faces the annular groove.

[0014] Optionally, the carbon dioxide generating liquid is a citric acid solution, and the carbon dioxide generating solid is sodium bicarbonate.

[0015] Optionally, the volume of the first chamber is not less than the volume of the second chamber.

[0016] Optionally, a hot melt adhesive layer is provided at a position of the metal window frame corresponding to the discharge hole.

[0017] Optionally, the metal window frame includes an upper frame and a lower frame, the upper frame is located at the top and the lower frame is located at the bottom, a thermal break is arranged between the upper frame and the lower frame, the glass component is arranged in the upper frame, and the first chamber and the second chamber are arranged in the lower frame.

[0018] Optionally, an inner frame beam and an inner frame platform are provided in the upper frame, and the inner frame platform is provided at the center of the upper frame. A plurality of inner frame beams are provided along the circumferential direction, and both ends are respectively connected to the upper frame and the inner frame platform. A pressure relief valve is provided on the inner frame platform, and the pressure relief valve connects the two sides of the glass fireproof skylight when opened.

[0019] The present application sets a first chamber and a second chamber for arranging a carbon dioxide generating liquid and a carbon dioxide generating solid in a metal window frame, so that when a fire occurs, carbon dioxide gas is instantly generated by the carbon dioxide generating liquid and the carbon dioxide generating solid, and the carbon dioxide gas is discharged and gathered under the metal window frame and the glass component. The carbon dioxide gas can prevent the fire from spreading to the glass fireproof skylight, so as to ensure the fireproof function of the glass fireproof skylight. Compared with setting the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire more promptly and effectively; at the same time, during the preparation process, the present application does not need to set a relatively strict sealing environment to prevent the fire extinguishing agent from leaking, and the preparation difficulty and preparation cost are relatively lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a glass fireproof skylight provided in one embodiment of the present application.

[0021] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0022] Figure 3 This is an axonometric diagram of a glass fireproof skylight provided in one embodiment of the present application.

[0023] Figure 4 yes Figure 1 Enlarged view of part B in the middle.

[0024] Explanation of the reference numerals: 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 component; 600, partition; 700, upper frame; 710, inner frame beam; 720, inner frame platform; 730, pressure relief valve; 800, lower frame; 900, thermal insulation component. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] The embodiment of the present application provides a glass fireproof skylight, the glass fireproof skylight comprising:

[0027] A metal window frame 100 is used to be arranged on one side of the top of a 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 first chamber 300 is connected with the second chamber 400, and a hot melt 500 is arranged at the connecting point, a carbon dioxide generating liquid is arranged in the first chamber 300, and a carbon dioxide generating solid is arranged in the second chamber 400, and 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 connected with the second chamber 400;

[0028] A glass member 200 disposed in the metal window frame 100;

[0029] When a fire occurs, the hot melt component 500 is melted to connect the first chamber 300 and the second chamber 400, and the carbon dioxide solid contacts the carbon dioxide liquid to produce carbon dioxide gas, and the exhaust hole 110 is at least used to exhaust the carbon dioxide gas from the second chamber 400.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the metal window frame 100 can be arranged on one side of the indoor wall top, and the metal window frame 100 can be made of steel, which has better fire resistance than aluminum. At the same time, the surface of the steel can be coated with a fireproof 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 profiles, and the first chamber 300 and the second chamber 400 can be cavities of the metal window frame 100. Since the first chamber 300 and the second chamber 400 need to be arranged with carbon dioxide generating liquid and carbon dioxide generating solid respectively, the first chamber 300 and the second chamber 400 should have a relatively large volume, which is preferably a relatively large cavity of the metal window frame 100, and the metal window frame 100 can adopt a structurally customized profile.

[0031] The metal window frame 100 includes an inner side and an outer side, and the glass component 200 is arranged on the inner side of the metal window frame 100, that is, "arranged in the metal window frame 100". The glass component 200 is used to meet the lighting requirements of the glass fireproof skylight, and it can be 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 in the metal window frame 100 by clamping on both sides. At the clamping position, a fireproof rubber strip can also be provided between the glass component 200 and the metal window frame 100, so that the structural stability of the glass fireproof skylight can be maintained in the event of a fire.

[0032] like Figure 1 and Figure 2As shown, in 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 500 is arranged on the partition 600, and the hot melt 500 can be made of hot melt adhesive, which can be set in the shape of a plug at room temperature, and the partition 600 is provided with a perforated structure for the hot melt 500 to be clamped. The hot melt 500 separates the first chamber 300 and the second chamber 400 at room temperature. When a fire occurs indoors, the metal window frame 100 is heated by the scorching. When the hot melt 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 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.

[0033] When the first chamber 300 is connected to the second chamber 400, the carbon dioxide generated liquid 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 generate carbon dioxide gas through a chemical reaction. After the carbon dioxide gas is generated, it flows out of the second chamber 400 through the discharge hole 110 due to the pressure difference to be discharged from the second chamber 400. In particular, when a fire occurs, the oxygen consumption outside the metal window frame 100 increases sharply, and the pressure difference is particularly obvious. After the carbon dioxide gas is discharged, it gathers under the metal window frame 100 and the glass member 200. When the fire has a tendency to spread to the glass fireproof skylight, the carbon dioxide gas can act as a fire extinguishing agent. The principle of fire extinguishing is: a sealing film is formed in the flame to repel oxygen molecules in the air and inhibit the burning of the flame, thereby reducing the fire. In addition, since the carbon dioxide gas has a high heat absorption, it can also reduce the temperature of the flame and extinguish the flame.

[0034] It is understandable that the present application sets a first chamber 300 and a second chamber 400 for arranging a carbon dioxide generating liquid and a carbon dioxide generating solid in the metal window frame 100, so that when a fire occurs, carbon dioxide gas is immediately generated by the carbon dioxide generating liquid and the carbon dioxide generating solid, and the carbon dioxide gas is discharged and gathered under the metal window frame 100 and the glass component 200, so that 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 setting the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire more promptly and effectively; at the same time, in the preparation process, the present application does not need to set a relatively strict sealing environment to prevent the fire extinguishing agent from leaking, and the preparation difficulty and preparation cost are relatively lower.

[0035] Specifically, a guide rail 410 and a turntable 420 are also provided 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 rotatable around its center. 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 to open and close the second chamber 400.

[0036] like Figure 2 and Figure 3 As shown, in this embodiment, the metal window frame 100 can be set 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 circular ring; the guide rail 410 can also be set as a circular ring, or multiple sections can be set at equal intervals along the circumference of the turntable 420, each section of the guide rail 410 is arc-shaped, and the multiple sections of the guide rail 410 are located on the same circular track. The guide rail 410 can be set on the bottom wall of the second chamber 400, and the turntable 420 is set on the guide rail 410 and can be slidably set. When the turntable 420 slides on the guide rail 410, it can be rotatably set around its center of the circle, that is, the turntable 420 rotates around its center of the circle. The turntable 420 can be spaced from the bottom wall of the second chamber 400 to reduce the 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 may also be configured to be rectangular and still have a circular first cavity 300 and a circular second cavity 400 .

[0037] The opening and closing buckle plate 430 can be arranged on the side wall of one side of the metal window frame 100, and the opening and closing buckle plate 430 is used to open or close the second chamber 400. In specific implementation, one side of the opening and closing buckle plate 430 can be rotatably connected to the side wall of the metal window frame 100, and the other side opposite to the metal window frame 100 can be detachably connected to the side wall; or the opening and closing buckle plate 430 can be clamped with the side wall of the metal window frame 100, for example, the opening buckle plate has an embedded part, and the metal window frame 100 has an opening matching the shape of the embedded part. The second chamber 400 is opened by the opening and closing buckle plate 430, so that the carbon dioxide generating solid is conveniently placed on the turntable 420. By driving the turntable 420 to rotate on the guide rail 410, the carbon dioxide generating solid is conveniently moved accurately to the bottom of the hot melt 500.

[0038] It can be understood that this embodiment, by providing an open buckle plate, and providing a guide rail 410 and a turntable 420, can achieve the purpose of accurately arranging the carbon dioxide generating solid directly below the hot melt part 500, so that when a fire occurs, the carbon dioxide generating liquid can drip directly onto the carbon dioxide generating solid to generate carbon dioxide gas in a timely manner.

[0039] In this embodiment, the metal window frame 100 may be provided with a liquid inlet valve and a liquid discharge valve on the side wall of the first chamber 300, through which the air in the first chamber 300 may be discharged, and the carbon dioxide generating liquid may be 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, so as to avoid squeezing and deforming the metal window frame 100 when the carbon dioxide generating liquid freezes and expands in volume in extreme weather.

[0040] More specifically, a plurality of hot melt components 500 are arranged at equal intervals along the circumference of the turntable 420 , and the opening and closing buckle plates 430 correspond to the hot melt components 500 one by one and are arranged corresponding to the radial direction of the turntable 420 .

[0041] like Figure 1 and Figure 2 As shown, in this embodiment, by way of example, twelve hot melt components 500 may be arranged at equal intervals along the circumference of the rotating disk 420, and similarly, twelve opening and closing buckle plates 430 are also arranged. The radial arrangement of the opening and closing buckle plates 430 and the hot melt components 500 corresponding to the rotating disk 420 can be understood as: the opening and closing buckle plates 430 and the hot melt components 500 corresponding to each other are arranged in the same radial direction of the rotating disk 420. Of course, in some embodiments, the number of hot melt components 500 may also be two, three, four or five. The discharge holes 110 may also be arranged in a plurality of groups at equal intervals along the circumference on the side wall of the metal window frame 100, and each group of discharge holes 110 may be arranged in a rectangular array on the side wall of the metal window frame 100. Along the circumference of the metal window frame 100, a plurality of groups of discharge holes 110 and a plurality of opening buckle plates are arranged in sequence. In this embodiment, twelve groups of discharge holes 110 are arranged.

[0042] It is understandable that in this embodiment, the number and position of the hot melt 500 and the opening and closing buckle plate 430 are arranged correspondingly, so that the hot melt 500 can be arranged at the connection between the first chamber 300 and the second chamber 400 before the carbon dioxide generating solid is arranged; at the same time, when the hot melt 500 fails, it is also convenient to replace the hot melt 500 in time. The discharge holes 110 are arranged in several groups and are arranged close to the hot melt 500, so that the generated carbon dioxide gas can be discharged in time.

[0043] Specifically, an annular groove 440 is provided on one side of the top of the turntable 420, and the carbon dioxide generating solid is arranged in the mesh bag 460, the mesh bag 460 is arranged in the annular groove 440, and several mesh bags 460 are arranged along the circumference of the turntable 420, and the number of mesh bags 460 is greater than the number of hot melt parts 500 or opening and closing buckle plates 430.

[0044] like Figure 1 and Figure 2As shown, in this embodiment, it is exemplarily explained that the carbon dioxide generating solid can be bagged into the mesh bag 460, so that the carbon dioxide generating solid is scattered at will and is difficult to be placed stably. The mesh bag 460 is arranged in the annular groove 440, which can be understood as: the mesh bag 460 is at least partially embedded in the annular groove 440, so as to be limited by the side wall of the annular groove 440 and avoid falling from the top side of the rotating disk 420 at will. By opening the twelve opening and closing buckle plates 430, a group of twelve mesh bags 460 can be arranged at different positions of the circumference of the rotating disk 420 at the same time. And by driving the rotating disk 420 to rotate on the slide rail, a group of twelve mesh bags 460 can be arranged again. The number of groups of mesh bags 460 can be reasonably selected according to actual needs.

[0045] 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, part of the mesh bags 460 can be arranged directly below the hot melt parts 500, and the carbon dioxide generating liquid can be directly dripped onto the carbon dioxide generating solid in the mesh bags 460, and then at least part of the carbon dioxide generating liquid flows into the annular groove 440; the carbon dioxide generating liquid flowing in the annular groove 440 can contact with the remaining mesh bags 460. Therefore, this embodiment can increase the preparation amount of carbon dioxide gas to improve the fire extinguishing effect of the glass fireproof skylight.

[0046] More specifically, a guide cover 450 is further disposed in the second chamber 400 . The guide cover 450 is disposed directly below the hot melt component 500 and is configured to be in a flared shape. The guide cover 450 faces the annular groove 440 .

[0047] like Figure 1 and Figure 2 As shown, in this embodiment, the guide cover 450 can be arranged on the partition 600, and the partition 600 can be detachably arranged. For example, a slot is arranged on the partition 600, and a flange is arranged at the top end of the guide cover 450, and the flange can be inserted into the slot. The guide cover 450 is correspondingly arranged directly below the hot melt 500, and the hot melt 500 is arranged 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.

[0048] It can be understood that when the hot melt component 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. The guide cover 450 can guide the carbon dioxide generating liquid, especially when the hot melt component 500 is hot-melted in an irregular shape, thereby reducing the waste of carbon dioxide generating liquid that is directly discharged without reacting with the carbon dioxide generating solid.

[0049] Specifically, the carbon dioxide generating liquid is a citric acid solution, and the carbon dioxide generating solid is sodium bicarbonate.

[0050] In this embodiment, it is exemplified that sodium bicarbonate is a white crystalline powder, odorless, salty, and easily soluble in water. At high temperatures, at least part of the sodium bicarbonate decomposes to generate sodium carbonate and carbon dioxide gas, and when further added with citric acid solution, both the sodium carbonate and the unreacted sodium bicarbonate react chemically with the citric acid to further generate sodium citrate and carbon dioxide.

[0051] It can be understood that the present embodiment obtains carbon dioxide gas 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 be heated to cause sodium bicarbonate to decompose to obtain carbon dioxide gas. When the hot melt 500 melts and citric acid solution is further added, the amount of carbon dioxide gas generated further increases. Therefore, the present embodiment can have a longer process of preventing the spread of fire and a better fire prevention effect.

[0052] More specifically, the volume of the first chamber 300 is not less than the volume of the second chamber 400 .

[0053] like Figure 1 and Figure 2 As shown, in this embodiment, it is exemplified that since the second chamber 400 is also arranged with a guide rail 410, a turntable 420 and a mesh bag 460 containing a carbon dioxide generating solid, when the volume of the first chamber 300 is not less than the volume of the second chamber 400, the carbon dioxide generating liquid in the first chamber 300 flows into the annular groove 440 of the turntable 420 and the sodium citrate solution obtained after the reaction with the carbon dioxide generating solid will inevitably continue to overflow out of the annular groove 440, and the overflowed sodium citrate solution can be discharged from the discharge hole 110 to play a spraying role, thereby further improving the fire extinguishing effect.

[0054] More specifically, the metal window frame 100 is provided with a hot melt adhesive layer at a position corresponding to the discharge hole 110 .

[0055] like Figure 1 and Figure 2As shown, in this embodiment, it is exemplified that since sodium bicarbonate will also react chemically when it meets water, in order to prevent the sodium bicarbonate from reducing its effect of producing carbon dioxide gas due to the presence of moisture in the air, it is also necessary to seal the second chamber 400 at room temperature. In this embodiment, the hot melt adhesive layer is sealed at room temperature. The hot melt adhesive layer can be formed by coating with hot melt adhesive, which can seal the discharge hole 110 at room temperature. In the event of a fire, it can melt at high temperature to open the discharge hole 110 in time. At the same time, it is not difficult to understand that before the hot melt adhesive layer reaches the hot melting temperature, the sodium bicarbonate in the second chamber 400 is decomposed at high temperature to produce carbon dioxide gas, and the pressure in the second chamber 400 increases; when the hot melt adhesive layer is melted, the pressurized carbon dioxide gas has a spraying effect, which can be diffused into a wider space, such as the middle position of the metal window frame 100.

[0056] Specifically, the metal window frame 100 includes an upper frame 700 and a lower frame 800, the upper frame 700 is located at the top and the lower frame 800 is located at the bottom, a thermal break 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.

[0057] like Figure 3 and Figure 4 As shown, in this embodiment, the upper frame 700 is used for arranging the glass member 200, and the lower frame 800 is used for setting the first chamber 300 and the second chamber 400. Since only the lower frame 800 needs to be heated in case of fire, in order to reduce the impact on the upper frame 700, the upper frame 700 and the lower frame 800 are separated by a broken bridge 900. The two ends of the broken bridge 900 are respectively connected to the upper frame 700 and the lower frame 800, which can be made of a material with high temperature resistance and low thermal conductivity to serve as a "broken bridge" structure for heat conduction, thereby preventing the heat received by the lower frame 800 from being transferred to the upper frame 700.

[0058] It can be understood that, in this embodiment, the metal window frame 100 is configured as an upper frame 700 and a lower frame 800 for functional partitioning, thereby ensuring the structural stability of the glass fireproof skylight.

[0059] More specifically, an inner frame beam 710 and an inner frame platform 720 are provided in the upper frame 700. The inner frame platform 720 is arranged in the center of the upper frame 700. Several inner frame beams 710 are arranged along the circumferential direction, and the two ends are respectively connected to the upper frame 700 and the inner frame platform 720. A pressure relief valve 730 is provided on the inner frame platform 720. When the pressure relief valve 730 is opened, the two sides of the glass fireproof skylight are connected.

[0060] In this embodiment, the inner frame platform 720 can be set as a truncated cone and arranged at the center of the upper frame 700. The inner frame beam 710 can be arranged along the radial direction of the upper frame 700, and a plurality of inner frame beams 710 are arranged at equal intervals along the circumferential direction, and the inner frame beam 710 is used to connect the inner frame platform 720 with the upper frame 700. The glass member 200 can be set in a fan shape and arranged in a fan-shaped space enclosed by the inner frame platform 720, the upper frame 700 and a plurality of inner frame beams 710. The pressure relief valve 730 is arranged on the truncated cone, and when it is opened, it connects the two sides of the glass fireproof skylight.

[0061] It is understandable that, by providing the pressure relief valve 730, this embodiment can connect the indoor with the outdoor when the indoor pressure is high, so as to relieve the indoor pressure and reduce the safety hazard when a fire occurs indoors.

[0062] The implementation principle of a glass fireproof skylight provided in the embodiment of the present application is:

[0063] When a fire occurs indoors, the lower frame 800 is heated, and the carbon dioxide generating solid decomposes at high temperature to generate carbon dioxide gas. As the temperature of the lower frame 800 increases, the hot melt 500 melts to connect the first chamber 300 and the second chamber 400, and the hot melt adhesive 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 drips on the carbon dioxide generating solid at the position directly below the hot melt 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, and the carbon dioxide gas is ejected from the discharge hole 110 and gathered directly below the metal window frame 100 and the glass member 200. The reacted solution is ejected from the discharge hole 110 to achieve spraying.

[0064] The present application sets a first chamber 300 and a second chamber 400 for arranging a carbon dioxide generating liquid and a carbon dioxide generating solid in the metal window frame 100, so that when a fire occurs, carbon dioxide gas is instantly generated by the carbon dioxide generating liquid and the carbon dioxide generating solid, and the carbon dioxide gas is discharged and gathered 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, so as to ensure the fireproof function of the glass fireproof skylight. Compared with setting the fire extinguishing agent in the laminated glass, the present application triggers the fire extinguishing agent to extinguish the fire more timely and effectively; at the same time, during the preparation process, the present application does not need to set a relatively strict sealing environment to prevent the fire extinguishing agent from leaking, and the preparation difficulty and preparation cost are relatively lower.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A glass fireproof skylight, characterized in that: The glass fireproof skylight comprises: A metal window frame (100) is used to be 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) being located at the top, and the second chamber (400) being located at the bottom, the first chamber (300) being connected to the second chamber (400), and a hot melt component (500) being provided at the connecting point, a carbon dioxide generating liquid being provided in the first chamber (300), and a carbon dioxide generating solid being provided in the second chamber (400), and 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 connected to the second chamber (400); A glass component (200) disposed in the metal window frame (100); Wherein, when a fire occurs, the hot melt component (500) is hot melted 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 out of the second chamber (400); A guide rail (410) and a turntable (420) are also provided in the second chamber (400); the turntable (420) is arranged in an annular shape and is slidably arranged on the guide rail (410) so as to be rotatable around its center of a circle; the carbon dioxide generating solid is arranged on the turntable (420); an opening and closing buckle plate (430) is provided on the side wall of the second chamber (400); the opening and closing buckle plate (430) is used to open and close the second chamber (400).

2. The glass fireproof skylight according to claim 1, characterized in that: A plurality of the hot melt components (500) are arranged at equal intervals along the circumference of the rotating disk (420), and the opening and closing buckle plates (430) correspond one-to-one to the hot melt components (500) and are arranged corresponding to the radial direction of the rotating disk (420).

3. The glass fireproof skylight according to claim 2, characterized in that: An annular groove (440) is provided on one side of the top of the rotating disk (420), and the carbon dioxide generating solid is arranged in a mesh bag (460). The mesh bag (460) is arranged in the annular groove (440), and a plurality of mesh bags (460) are arranged along the circumference of the rotating disk (420), and the number of the mesh bags (460) is greater than the number of the hot melt parts (500) or the opening and closing buckle plates (430).

4. The glass fireproof skylight according to claim 3, characterized in that: A guide cover (450) is also provided in the second chamber (400). The guide cover (450) is provided directly below the hot melt component (500) and is arranged in a flared shape. The guide cover (450) faces the annular groove (440).

5. The glass fireproof skylight according to claim 1, characterized in that: The carbon dioxide generating liquid is a citric acid solution, and the carbon dioxide generating solid is sodium bicarbonate.

6. The glass fireproof skylight according to claim 5, characterized in that: The volume of the first chamber (300) is not less than the volume of the second chamber (400).

7. The glass fireproof skylight according to claim 5, characterized in that: The metal window frame (100) is provided with a hot melt adhesive layer at a position corresponding to the discharge hole (110).

8. The glass fireproof skylight according to claim 1, characterized in that: The metal window frame (100) comprises an upper frame (700) and a lower frame (800), the upper frame (700) being located at the top and the lower frame (800) being located at the bottom, a thermal break member (900) being arranged between the upper frame (700) and the lower frame (800), the glass member (200) being arranged in the upper frame (700), and the first chamber (300) and the second chamber (400) being arranged in the lower frame (800).

9. The glass fireproof skylight according to claim 8, characterized in that: An inner frame beam (710) and an inner frame platform (720) are arranged in the upper frame (700); the inner frame platform (720) is arranged at the center of the upper frame (700); a plurality of inner frame beams (710) are arranged along the circumferential direction, and two ends are respectively connected to the upper frame (700) and the inner frame platform (720); a pressure relief valve (730) is arranged on the inner frame platform (720); and when the pressure relief valve (730) is opened, two sides of the glass fireproof skylight are connected.

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