Fire-resistant and sound-proof aerated brick
By incorporating a gaseous fire extinguishing agent and venting structures into aerated concrete blocks, the fire extinguishing agent is released by destroying the sealing plug with flames. Combined with sound-absorbing panels and reinforced structures, this solves the problem that aerated concrete blocks cannot suppress the spread of fire sources during a fire, achieving the effects of initial fire extinguishing and enhanced pressure resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN HAOBANG BUILDING MATERIALS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing aerated concrete blocks cannot contain the spread of fire in a fire, increasing the risk of people escaping from buildings and injuries to firefighters.
Vent holes and rubber sealing plugs are provided on the square metal shell and cylindrical head of the aerated concrete block. The interior contains gaseous fire extinguishing agent. The fire extinguishing agent is released by burning through the sealing plugs with flames through the through holes on the outer surface of the aerated concrete block frame and the corresponding cylindrical head. At the same time, the return passage of the air filling system in the annular reinforcing structure of the aerated concrete block frame and the sound-absorbing plate structure are enhanced to improve the compressive strength.
It effectively suppresses the spread of fire in the early stages of a fire, increases the escape rate and reduces the risk of injury to firefighters, while also enhancing the compressive strength of the brick.
Smart Images

Figure CN224259702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerated concrete block technology, specifically a fire-resistant and sound-insulating aerated concrete block. Background Technology
[0002] Aerated concrete blocks, also known as aerated concrete blocks, are a type of lightweight and porous new building material. The main raw materials of aerated concrete blocks include siliceous materials such as quartz sand, gypsum, lime, cement, fly ash, coal slag, tailings, and coal gangue, as well as calcareous materials such as lime and cement. They are made by adding a gas-generating agent such as aluminum powder through a series of processes.
[0003] Because aerated concrete blocks are made from a mixture of cement, gypsum, lime, and cinder, and produced through a specific manufacturing process, they can typically withstand temperatures above 1000 degrees Celsius. They possess excellent fire resistance, and their porous structure on the outer surface effectively absorbs and blocks external noise, making them widely applicable in residential buildings, hotels, office buildings, and other structures requiring sound insulation. These aerated concrete blocks with high heat resistance and high thermal insulation properties can be referred to as fire-resistant and sound-insulating aerated concrete blocks.
[0004] However, this type of aerated concrete block only has high fire resistance and sound insulation properties. When a fire occurs in a building constructed with this type of aerated concrete block, it cannot suppress the spread of the fire source. Therefore, it does not meet the current needs. In response, we have proposed a fire-resistant and sound-insulating aerated concrete block. Utility Model Content
[0005] The purpose of this invention is to provide a fire-resistant and sound-insulating aerated concrete block to solve the problems mentioned in the background art, such as the fact that the aerated concrete block itself has high fire resistance and sound insulation performance, but cannot suppress the spread of fire when a fire occurs in a building constructed with this aerated concrete block.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant and sound-insulating aerated concrete block, comprising a square metal shell, wherein multiple cylindrical heads are fixedly provided on the six end faces of the square metal shell, the outer surface of the cylindrical heads is provided with air outlets, the interior of the air outlets is fixedly provided with rubber sealing plugs, and the interior of the square metal shell and all the cylindrical heads contains a gaseous fire extinguishing agent.
[0007] An aerated concrete block frame is fixedly fitted onto the outer surface of the square metal shell. Each of the six end faces of the aerated concrete block frame has multiple through holes. The position and number of the through holes on the outer surface of the aerated concrete block frame are the same as the position and number of the cylindrical heads on the outer surface of the square metal shell.
[0008] Preferably, a rubber retaining ring is provided on one side of the through hole, and a retaining ring that is inserted into the outer shell of the aerated brick frame is fixedly sleeved on the outer surface of the rubber retaining ring.
[0009] Preferably, the surface of the rubber retaining ring facing the nearest cylindrical head is fitted with a first porous sound-absorbing plate, and the surface of the first porous sound-absorbing plate facing the nearest cylindrical head is fitted with a second porous sound-absorbing plate.
[0010] Preferably, the second porous sound-absorbing panel has a flammable cotton layer on the side facing closest to it. The flammable cotton layer is made entirely of ignition cotton, and the two ends of the flammable cotton layer are respectively attached to the outer surfaces of the second porous sound-absorbing panel and the cylindrical head.
[0011] Preferably, the outer side of the square metal shell is provided with an annular groove located inside the aerated brick frame, and the inside of the annular groove is provided with a spiral-shaped reinforced hollow frame. The shape of the outer surface of the spiral-shaped reinforced hollow frame corresponds to the shape of the inner wall of the annular groove, and the outer surface of the spiral-shaped reinforced hollow frame is in contact with the inner wall of the annular groove.
[0012] Preferably, the hollow frame with a U-shaped reinforcement is fixedly provided with a cross-shaped cross-section reinforcement bracket. The cross-section of the cross-shaped reinforcement bracket is cross-shaped, and the four corners of the outer surface of the cross-shaped reinforcement bracket are fixed to the inner wall of the hollow frame with the U-shaped reinforcement.
[0013] Preferably, the hollow frame with a U-shape reinforcement is a square frame, and the hollow frame with a U-shape reinforcement is made of titanium steel in one piece.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model has a cylindrical head fixed to the outer surface of a square metal shell inside the through hole on the outer surface of the aerated brick frame, and a rubber sealing plug for sealing the air outlet inside the air outlet on the outer surface of the cylindrical head. When a fire occurs in a building constructed with this aerated brick frame, the flames burn through the wall and come into contact with the rubber sealing plug, burning it. The gaseous extinguishing agent inside the square metal shell will gradually flow to the outside through the burned rubber sealing plug, thereby extinguishing the fire. Through the above technical solution, the aerated brick frame can suppress the spread of the fire source or even extinguish the fire source directly for a certain period of time in the early stage of the fire, thereby improving the escape rate of people at the fire scene and reducing the possibility of injury to firefighters.
[0016] 2. This utility model enhances the overall compressive strength of the aerated brick frame by using a hollow, ring-shaped reinforcing frame located on the outside of the square metal shell and fixed inside the aerated brick frame. The hollow, ring-shaped reinforcing frame added in the above technical solution to improve the overall strength of the aerated brick frame can prevent the strength of the aerated brick frame from being affected by the gaseous fire extinguishing agent located inside it. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a top view of the entire utility model;
[0019] Figure 3 This is a front view of the entire utility model;
[0020] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0021] In the diagram: 1. Square metal casing; 2. Gas extinguishing agent; 3. Columnar head; 4. Gas outlet; 5. Rubber sealing plug; 6. Aerated brick frame; 7. Through hole; 8. Fixing ring; 9. Rubber fixing ring; 10. First porous sound-absorbing panel; 11. Second porous sound-absorbing panel; 12. Flammable cotton layer; 13. Annular groove; 14. Reinforced hollow frame; 15. Cross-shaped cross-section reinforced bracket. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] The square metal shell 1 (model 304), aerated brick frame 6 (model 1350) and rubber sealing plug 5 (model TS-2) mentioned in this utility model can be obtained from the market or through private customization.
[0024] like Figure 1 , Figure 2 and Figure 4 As shown, one embodiment of this utility model is provided: a fire-resistant and sound-insulating aerated brick, including a square metal shell 1, with multiple cylindrical heads 3 fixedly provided on each of the six end faces of the square metal shell 1, and an air outlet 4 provided on the outer surface of the cylindrical head 3, with a rubber sealing plug 5 fixedly provided inside the air outlet 4, and the square metal shell 1 and all the cylindrical heads 3 contain a gaseous fire extinguishing agent 2 inside.
[0025] An aerated concrete block frame 6 is fixedly fitted onto the outer surface of a square metal shell 1. Each of the six end faces of the aerated concrete block frame 6 has multiple through holes 7. The position and number of the through holes 7 on the outer surface of the aerated concrete block frame 6 are the same as the position and number of the cylindrical heads 3 on the outer surface of the square metal shell 1. The through holes 7 on the outer surface of the aerated concrete block frame 6 contain cylindrical heads 3 fixed to the outer surface of the square metal shell 1. The vent holes 4 on the outer surface of these cylindrical heads 3 contain rubber sealing plugs 5 for sealing the vent holes 4. When a fire occurs in a building constructed with this aerated concrete block frame 6, the flames burn through the wall and contact the rubber sealing plug 5, burning it. The gaseous extinguishing agent 2 inside the square metal shell 1 will gradually flow to the outside through the burned rubber sealing plug 5, thus extinguishing the fire. This embodiment enables the aerated concrete block frame 6 to suppress the spread of the fire source or even extinguish it directly for a certain period in the early stages of a fire, thereby increasing the escape rate of people at the fire scene and reducing the possibility of injury to firefighters.
[0026] As a preferred technical solution in this embodiment, such as Figure 4 As shown, a rubber retaining ring 9 is provided on one side inside the through hole 7, and a retaining ring 8 that is inserted into the outer shell of the aerated concrete block frame 6 is fixedly sleeved on the outer surface of the rubber retaining ring 9; a first porous sound-absorbing plate 10 is attached to the surface of the rubber retaining ring 9 facing the nearest cylindrical head 3, and a second porous sound-absorbing plate 11 is attached to the surface of the first porous sound-absorbing plate 10 facing the nearest cylindrical head 3; the first porous sound-absorbing plate 10 and the second porous sound-absorbing plate 11 can improve the overall sound insulation strength of the aerated concrete block frame 6, and the first porous sound-absorbing plate 10 and the second porous sound-absorbing plate 11 can be fixed by the rubber retaining ring 9 fixed by the retaining ring 8.
[0027] The second porous sound-absorbing panel 11 has a flammable cotton layer 12 facing the nearest surface. The flammable cotton layer 12 is made entirely of ignition cotton. The two ends of the flammable cotton layer 12 are respectively attached to the outer surfaces of the second porous sound-absorbing panel 11 and the cylindrical head 3. When an external fire source burns through the fixing ring 8, the first porous sound-absorbing panel 10, and the second porous sound-absorbing panel 11 and comes into contact with the flammable cotton layer 12, the flammable cotton layer 12, which is made entirely of ignition cotton, will be quickly ignited. The flammable cotton layer 12, which is quickly ignited, can accelerate the speed at which the rubber sealing plug 5 is burned through.
[0028] The outer side of the square metal shell 1 is provided with an annular groove 13 located inside the aerated concrete block frame 6. Inside the annular groove 13 is a spiral-shaped reinforced hollow frame 14. The shape of the outer surface of the spiral-shaped reinforced hollow frame 14 corresponds to the shape of the inner wall of the annular groove 13, and the outer surface of the spiral-shaped reinforced hollow frame 14 is in contact with the inner wall of the annular groove 13. The spiral-shaped reinforced hollow frame 14 is a square frame and is made of titanium steel in one piece. The spiral-shaped reinforced hollow frame 14 located outside the square metal shell 1 and fixed inside the aerated concrete block frame 6 can enhance the overall compressive strength of the aerated concrete block frame 6. The spiral-shaped reinforced hollow frame 14 added in the above technical solution to improve the overall strength of the aerated concrete block frame 6 can prevent the strength of the aerated concrete block frame 6 from being affected by the gaseous fire extinguishing agent 2 located inside it.
[0029] The hollow frame 14 is internally fixed with a cross-shaped cross-section reinforcement bracket 15. The cross-section of the cross-shaped cross-section reinforcement bracket 15 is cross-shaped, and the four corners of the outer surface of the cross-shaped cross-section reinforcement bracket 15 are fixed to the inner wall of the hollow frame 14. The cross-shaped cross-section reinforcement bracket 15 can support the four end faces of the hollow frame 14 to prevent it from deforming.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fire resistant, soundproofed aerated brick comprising a square metal casing (1) characterised in that: The square metal shell (1) has multiple cylindrical heads (3) fixedly provided on its six end faces. The outer surface of the cylindrical head (3) is provided with an air outlet (4). The air outlet (4) is fixedly provided with a rubber sealing plug (5). The square metal shell (1) and all the cylindrical heads (3) contain a gaseous fire extinguishing agent (2). An aerated concrete block frame (6) is fixedly fitted on the outer surface of the square metal shell (1). Each of the six end faces of the aerated concrete block frame (6) is provided with multiple through holes (7). The position and number of the through holes (7) on the outer surface of the aerated concrete block frame (6) are the same as the position and number of the cylindrical head (3) on the outer surface of the square metal shell (1).
2. A fire resistant, soundproofed, aerated brick according to claim 1, characterised in that: A rubber retaining ring (9) is provided on one side inside the through hole (7), and a retaining ring (8) that is inserted into the outer shell of the aerated brick frame (6) is fixedly sleeved on the outer surface of the rubber retaining ring (9).
3. A fire resistant, soundproofed, aerated brick according to claim 2, characterised in that: The rubber retaining ring (9) has a first porous sound-absorbing plate (10) attached to the surface facing the nearest cylindrical head (3), and the first porous sound-absorbing plate (10) has a second porous sound-absorbing plate (11) attached to the surface facing the nearest cylindrical head (3).
4. A fire resistant, acoustically insulated, aerated block according to claim 3, characterised in that: The second porous sound-absorbing plate (11) has a flammable cotton layer (12) facing the nearest surface. The flammable cotton layer (12) is made entirely of ignition cotton. The two ends of the flammable cotton layer (12) are respectively attached to the outer surfaces of the second porous sound-absorbing plate (11) and the cylindrical head (3).
5. A fire resistant, soundproofed, aerated brick according to claim 1, characterized in that: The outer side of the square metal shell (1) is provided with an annular groove (13) located inside the aerated brick frame (6). The annular groove (13) is provided with a spiral-shaped reinforced hollow frame (14). The shape of the outer surface of the spiral-shaped reinforced hollow frame (14) corresponds to the shape of the inner wall of the annular groove (13), and the outer surface of the spiral-shaped reinforced hollow frame (14) is in contact with the inner wall of the annular groove (13).
6. A fire resistant, acoustically insulated, aerated block according to claim 5, characterised in that: The hollow frame (14) is internally fixed with a cross-shaped cross-section reinforcement bracket (15). The cross-section of the cross-shaped cross-section reinforcement bracket (15) is cross-shaped, and the four corners of the outer surface of the cross-shaped cross-section reinforcement bracket (15) are fixed to the inner wall of the hollow frame (14).
7. A fire resistant, acoustically insulated, aerated block according to claim 6, characterised in that: The hollow frame (14) with a spiral shape is a square frame, and the hollow frame (14) with a spiral shape is made of titanium steel as a whole.