Firewall structure

Abstract

The utility model relates to the technical field of firewalls, in particular to a firewall structure which comprises a floor slab, an air pipe and a suspended ceiling, the air pipe and the suspended ceiling are arranged on the floor slab, and the air pipe is arranged between the floor slab and the suspended ceiling. A fireproof valve is arranged on the air pipe, a fire insulation layer is arranged on the side, away from the air pipe, of the floor slab, the outer surface of the air pipe is coated with a fireproof layer, a flexible heat insulation damping body of a spiral structure is arranged between the fireproof layer and the air pipe, and a supporting structure is arranged between the air pipe and the floor slab. The fireproof performance and the structural stability are improved through multiple designs. The fireproof valve, the fire insulation layer and the fireproof layer form a plurality of fireproof barriers, so that fire spreading is effectively blocked; the flexible heat insulation and shock absorption body of the spiral structure has heat insulation and shock absorption functions; the supporting structure enhances the stability of the air pipe and prevents the air pipe from falling off. All the components are in synergistic effect, the fireproof safety and practicability of the firewall structure are remarkably improved, and the fire risk and the equipment loss are reduced.

Description

A firewall architecture Technical Field

[0001] This utility model relates to the field of firewall technology, and in particular discloses a firewall structure. Background Technology

[0002] In modern buildings, fire safety is paramount, and firewalls, as a key component of fire protection, directly impact fire control effectiveness. Traditional firewall structures have numerous shortcomings in fire resistance, stability, and vibration reduction. In existing fire protection designs, ventilation ducts and other facilities often become channels for fire spread. Ordinary fire prevention measures struggle to maintain the integrity and function of the duct structure under prolonged high temperatures, leading to rapid fire spread through the ventilation system. Regarding structural stability, duct support methods are simplistic, making them prone to deformation, loosening, or even collapse due to their own weight and changes in wind pressure. This not only affects normal use but may also trigger secondary disasters. In terms of vibration and noise reduction, traditional structures lack effective damping methods. Vibrations and noise generated by ducts and fans not only reduce the comfort of the building environment but also accelerate component wear and shorten equipment lifespan. With the increasing complexity and height of buildings, higher demands are placed on firewall structures in terms of fire resistance, stability, and vibration reduction. A more efficient and reliable firewall structure is urgently needed to meet the fire safety requirements of modern buildings. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a firewall structure.

[0004] To achieve the above objectives, the present invention provides a firewall structure, comprising a floor slab, an air duct installed on the floor slab, and a suspended ceiling, wherein the air duct is located between the floor slab and the suspended ceiling; a fire damper is provided on the air duct, a fire-resistant layer is provided on the side of the floor slab away from the air duct, the outer surface of the air duct is covered with a fireproof layer, a flexible heat insulation and shock absorption body with a spiral structure is provided between the fireproof layer and the air duct, and a support structure is provided between the air duct and the floor slab.

[0005] Furthermore, the duct is a rectangular galvanized steel plate structure, and corner supports that are rigidly connected to the fireproof layer are provided at the corners of the duct.

[0006] Furthermore, the support structure includes a frame structure surrounding the outer periphery of the duct, a first support component, and a second support component. The support component is used to connect the floor slab and the frame structure. The first support component is used to vertically support the frame structure, and the second support component is used to diagonally support the frame structure.

[0007] Furthermore, the first support component includes a long screw rod, one end of which is fixed to the floor slab and the other end is screwed to the frame structure. A rectangular tube is sleeved on the side of the long screw rod, and an adjusting nut that abuts against the long screw rod is provided on the side of the rectangular tube.

[0008] Furthermore, the second support component includes a first diagonal brace and a second diagonal brace arranged in a cross configuration, with the diagonal brace connected to the floor slab and the frame structure respectively via detachable fasteners.

[0009] Furthermore, the number of the second support components is set to multiple, and the multiple second support components are symmetrically arranged on the left and right sides of the first support component.

[0010] Furthermore, the fireproof layer is configured as multiple segments, which are arranged along the length of the air duct. A vertical structure fixed to the air duct is provided between two adjacent fireproof layers, and the vertical structure is connected to the floor slab and the ceiling.

[0011] Furthermore, the vertical structure is provided with a fixing ring, a rigid sleeve, and a fire-resistant layer near the duct. The fixing ring is used to fix the vertical structure to the duct, and the fire-resistant layer is filled between the rigid sleeve and the duct.

[0012] Furthermore, a fan is provided on the air duct, and a load-bearing structure is provided between the fan and the floor slab. The load-bearing structure includes a support frame for supporting the fan, a steel wire rope for supporting the support frame, and a shock-absorbing component. The shock-absorbing component is used to vertically support the support frame, and the steel wire rope is used for lateral auxiliary support.

[0013] Furthermore, the shock absorption assembly includes a first fixing member installed on the floor slab and a second fixing member installed on the support frame. The first fixing member and the second fixing member are fixed by an intermediate connecting member, and a spring shock absorber is provided between the fixing member and the intermediate connecting member.

[0014] The beneficial effects of this utility model are:

[0015] (1) In terms of fire resistance, fire dampers automatically close when exposed to high temperatures. Multiple fire barriers, such as fire-resistant layers, fire-resistant layers, and fire-resistant layers, effectively block the path of fire spread, prevent fire from spreading through air ducts and floors, and ensure that the ventilation or smoke exhaust system remains functional during a fire.

[0016] (2) In terms of stability, the rectangular galvanized steel duct is combined with corner support to enhance the structural strength. The frame structure surrounding the duct works in conjunction with various support components. The long screw combined with the adjusting nut realizes the height fine adjustment. The diagonal bracing pipes are symmetrically distributed to keep the duct stable under the action of gravity, wind pressure and other forces, and avoid falling and causing secondary disasters.

[0017] (3) In terms of vibration reduction and noise reduction, the flexible heat insulation damping body with spiral structure, spring damper and other components can absorb the vibration and noise generated during the operation of the air duct, reduce the impact on the building environment, reduce the wear of components caused by vibration, extend the service life of air duct and fan, and improve the reliability and practicality of the overall structure. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of a firewall according to the present invention;

[0019] Figure 2 is a structural schematic diagram of the air duct and fireproof layer of this utility model;

[0020] Figure 3 is a schematic diagram of the first structure of the support structure of this utility model;

[0021] Figure 4 is a schematic diagram of the second structure of the support structure of this utility model;

[0022] Figure 5 is a structural schematic diagram of the fan and load-bearing structure of this utility model;

[0023] Figure 6 is a structural schematic diagram of the shock absorption component of this utility model;

[0024] Figure 7 is a partial structural schematic diagram of the air duct and fireproof layer of this utility model.

[0025] The reference numerals in the attached drawings include: 1. Floor slab; 2. Air duct; 3. Ceiling; 4. Fire damper; 5. Fireproof layer; 6. Fireproof layer; 7. Flexible thermal insulation and shock absorption body; 8. Support structure; 9. Corner support; 11. Frame structure; 12. First support assembly; 13. Second support assembly; 14. Long screw; 15. Rectangular tube; 16. Adjusting nut; 17. First diagonal brace tube; 18. Second diagonal brace tube; 19. Detachable fastener; 21. Vertical structure; 22. Fixing ring; 23. Rigid sleeve; 24. Fire-resistant layer; 25. Fan; 26. Bearing frame; 27. Steel wire rope; 28. Shock absorption assembly; 29. ​​First fastener; 31. Second fastener; 32. Intermediate connector; 33. Spring shock absorber. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Please refer to Figures 1 to 6. A firewall structure of this utility model includes a floor slab 1, an air duct 2 installed on the floor slab 1, and a ceiling 3. The air duct 2 is located between the floor slab 1 and the ceiling 3. A fire damper 4 is provided on the air duct 2. A fire-resistant layer 5 is provided on the side of the floor slab 1 away from the air duct 2. The outer surface of the air duct 2 is covered with a fireproof layer 6. A flexible heat insulation and shock absorption body 7 with a spiral structure is provided between the fireproof layer 6 and the air duct 2. A support structure 8 is provided between the air duct 2 and the floor slab 1.

[0028] In actual use, the fire damper 4 on duct 2 can sense the ambient temperature through a temperature-sensing element during a fire. When the predetermined activation temperature is reached, it will quickly and automatically close, effectively blocking the spread of flames and high-temperature smoke through duct 2. This prevents the fire from spreading over a large area of ​​the building through the ventilation system, buying valuable time for evacuation and fire rescue. The fire-resistant layer 5 installed on the side of floor slab 1 away from duct 2 can effectively isolate the fire in the spaces above and below floor slab 1, reducing the possibility of fire transmission through floor slab 1 and forming a solid fire barrier to ensure the fire safety of adjacent floors. The fireproof layer 6 on the outer surface of duct 2 is made of a high-temperature resistant and flame-retardant material, which can resist the erosion of external flames and high temperatures, protecting the structure of duct 2 from rapid damage during a fire, maintaining the integrity and functionality of duct 2, and ensuring the normal operation of the ventilation or smoke exhaust system for a certain period of time.

[0029] The flexible heat insulation and vibration damping body 7 with a spiral structure between the fireproof layer 6 and the air duct 2 has dual functions of heat insulation and vibration damping. On the one hand, its heat insulation performance reduces the transfer of heat into the air duct 2, maintaining a stable air temperature inside the air duct 2. On the other hand, the flexible spiral structure effectively absorbs the vibration and noise generated by the air duct 2 during operation, reducing the impact of vibration on the air duct 2 and surrounding structures, reducing the risk of component loosening and damage, and extending the service life of the air duct 2. The supporting structure 8 between the air duct 2 and the floor slab 1 enhances the stability of the air duct 2 installation, ensuring that the air duct 2 remains reliable under normal operation and special circumstances such as fire, preventing secondary disasters caused by the air duct 2 falling, and improving the safety and reliability of the overall structure. These design elements work together to build an efficient and comprehensive fire safety protection system.

[0030] Specifically, the air duct 2 is a rectangular galvanized steel plate structure, and corner support members 9 that are rigidly connected to the fireproof layer 6 are provided at the corners of the air duct 2.

[0031] In practical use, the duct 2, with its rectangular galvanized steel plate structure, effectively resists the erosion caused by humidity, acids, alkalis, and other environmental factors due to the excellent corrosion resistance and strength of galvanized steel. This extends the service life of the duct 2, reduces maintenance costs, and ensures that the duct 2 maintains good structural performance and ventilation effect during long-term use. Corner supports 9, rigidly connected to the fireproof layer 6, are installed at the rectangular corners, greatly enhancing the structural strength and stability of the corner sections of the duct 2.

[0032] Because the stress is concentrated at the corners of the rectangular duct 2, it is prone to deformation or even damage when subjected to external impacts, wind pressure changes, or vibrations. The corner support 9, through its rigid connection with the fireproof layer 6, forms a stable triangular support structure 8, effectively dispersing the stress at the corners and improving the overall deformation resistance of the duct 2, ensuring its normal operation even under complex conditions. Simultaneously, this rigid connection tightly integrates the fireproof layer 6 with the duct 2, enabling more effective transfer of the fire insulation and fireproof properties of the fireproof layer 6 during a fire. This prevents flames and high temperatures from penetrating through the weak points at the corners of the duct 2, further enhancing the fire safety of the fireproof structure and ensuring that the duct 2 maintains its structural integrity during a fire, continuing to perform its ventilation or smoke extraction functions.

[0033] Specifically, the support structure 8 includes a frame structure 11 surrounding the outer periphery of the air duct 2, a first support component 12, and a second support component 13. The support components are used to connect the floor slab 1 and the frame structure 11. The first support component 12 is used to vertically support the frame structure 11, and the second support component 13 is used to diagonally support the frame structure 11.

[0034] In actual use, the frame structure 11 surrounding the outer perimeter of the duct 2 in the support structure 8 provides an overall support frame for the duct 2, evenly distributing the weight and stress of the duct 2, avoiding excessive local stress that could lead to deformation or damage to the duct 2, and ensuring the stability and integrity of the duct 2 structure. The first support component 12 is used for the vertical support frame structure 11, capable of bearing the weight of the duct 2 and its internal medium, ensuring the stable installation of the duct 2 in the vertical direction, and preventing the duct 2 from sagging or falling due to its own weight. The second support component 13 is used for the oblique support frame structure 11, effectively resisting the horizontal forces such as vibration and wind pressure changes generated during the operation of the duct 2 through oblique support force, enhancing the horizontal stability of the duct 2, reducing the swaying and displacement of the duct 2, and reducing the risk of noise and component loosening caused by vibration and displacement.

[0035] The first support component 12 and the second support component 13 work together to form a three-dimensional support system, providing stable support for the duct 2 from multiple directions. This ensures that the duct 2 can maintain a reliable installation state in complex operating environments, such as under different wind speeds and pressures. This not only improves the operational safety and reliability of the duct 2, but also provides strong protection for the firewall structure to maintain normal function in special circumstances such as fires, ensuring the stable operation of the ventilation or smoke exhaust system.

[0036] Specifically, the first support component 12 includes a long screw 14, one end of which is fixed to the floor slab 1 and the other end is screwed to the frame structure 11. A rectangular tube 15 is sleeved on the side of the long screw 14, and an adjusting nut 16 that abuts against the long screw 14 is provided on the side of the rectangular tube 15.

[0037] In actual use, one end of the long screw 14 in the first support component 12 is fixed to the floor slab 1, and the other end is screwed to the frame structure 11. This connection method makes the installation and adjustment of the duct 2 support structure 8 more convenient. The long screw 14 can provide stable vertical support force, bear the weight of the duct 2, and ensure that the duct 2 is fixed in the vertical direction. The rectangular tube 15 sleeved on the side of the long screw 14 and the adjusting nut 16 set on the side of the rectangular tube 15 constitute an adjustable support height mechanism. By rotating the adjusting nut 16, the length of the long screw 14 extending out of the rectangular tube 15 can be precisely adjusted, thereby realizing the fine adjustment of the installation height of the duct 2, adapting to different building spaces and installation requirements, and ensuring the accuracy of the installation position of the duct 2.

[0038] During installation, the height of duct 2 can be flexibly adjusted according to the actual situation to ensure a reasonable spatial layout between duct 2 and other building components, avoiding installation conflicts caused by height errors. Simultaneously, if the height of duct 2 changes due to factors such as building settlement or component deformation during operation, it can be adjusted promptly using adjusting nuts 16 to maintain stable operation of duct 2. This effectively reduces vibration and noise problems caused by inaccurate installation height, improves the practicality and reliability of the duct 2 support structure 8, and ensures the stable operation of the duct 2 system within the firewall structure.

[0039] Specifically, the second support component 13 includes a first diagonal brace tube 17 and a second diagonal brace tube 18 arranged in a cross configuration. The diagonal brace tubes are connected to the floor slab 1 and the frame structure 11 respectively via detachable fasteners 19.

[0040] In actual use, the first diagonal bracing tube 17 and the second diagonal bracing tube 18, which are intersected in the second support component 13, form a stable triangular support system through their intersecting structure. The triangle possesses unique stability, effectively dispersing and transmitting horizontal forces such as wind pressure and vibration experienced by the duct 2 to the floor slab 1 and the frame structure 11 via the diagonal bracing tubes. This enhances the duct 2's resistance to wind and earthquakes in the horizontal direction, greatly improving the overall stability of the duct 2. Both are connected to the floor slab 1 and the frame structure 11 via detachable fasteners 19. This detachable design greatly facilitates the installation, maintenance, and repair of the firewall structure.

[0041] During installation, the installation position and angle of the diagonal bracing pipes can be flexibly adjusted according to actual project needs and site conditions to ensure optimal support. During later maintenance and repair, if a diagonal bracing pipe is damaged or needs replacement, the fasteners can be easily disassembled for replacement without requiring large-scale modifications to the entire support structure 8, reducing maintenance costs and construction difficulty, and improving maintenance efficiency. Simultaneously, the detachable fasteners 19 ensure the connection strength and reliability between the diagonal bracing pipes and the floor slab 1 and frame structure 11, effectively maintaining the diagonal bracing function even in emergencies such as fires, ensuring the stability of the duct 2 and the fire resistance performance of the firewall structure.

[0042] Specifically, the number of the second support components 13 is set to multiple, and the multiple second support components 13 are symmetrically arranged on the left and right sides of the first support component 12.

[0043] In actual use, multiple second support components 13 are symmetrically arranged on the side of the first support component 12. This symmetrical distribution design makes the supporting force on the duct 2 more uniform and balanced. During the operation of the duct 2, whether it is subjected to horizontal forces such as wind pressure and vibration, or vertical forces such as its own weight, the symmetrically distributed second support components 13 can work together from multiple angles to evenly distribute these forces to the entire support structure 8 and floor slab 1, avoiding structural damage or deformation caused by localized force concentration.

[0044] For example, when duct 2 is subjected to wind pressure from a certain direction, the symmetrically distributed second support components 13 can work together to resist the wind pressure, preventing duct 2 from tilting or shifting to one side. When duct 2 vibrates due to the flow of the internal medium, the second support components 13 cooperate with each other to effectively absorb and offset the vibration energy, reducing the swaying of duct 2. At the same time, this symmetrical layout, in conjunction with the first support component 12, further enhances the stability and reliability of the entire support structure 8, improves the operational safety of duct 2 under complex working conditions, ensures the stable operation of the duct 2 system in the firewall structure, and provides stronger protection for building fire safety.

[0045] Specifically, the fireproof layer 5 is configured as multiple segments, and the multiple fireproof layers 5 are arranged along the length of the air duct 2. A vertical structure 21 fixed to the air duct 2 is provided between two adjacent fireproof layers 5. The vertical structure 21 is connected to the floor slab 1 and the ceiling 3.

[0046] In actual use, the fire-resistant layer 5 is configured in multiple segments and arranged along the length of the duct 2. This segmented arrangement better adapts to the length and shape of the duct 2, allowing the fire-resistant layer 5 to fit tightly against the duct 2, effectively covering the fire-resistant area around the duct 2 and improving the fire-resistant effect. Vertical structures 21, fixed to the duct 2, are installed between adjacent fire-resistant layers 5, and these vertical structures 21 are connected to the floor slab 1 and the ceiling 3, forming a stable connection system. The vertical structures 21 not only enhance the installation stability of the fire-resistant layer 5, preventing displacement or detachment during use, but also transfer the heat and pressure received by the fire-resistant layer 5 to the floor slab 1 and the ceiling 3, further dispersing and mitigating the impact of heat on the fire-resistant layer 5, thus improving its fire resistance and service life.

[0047] In addition, the vertical structure 21 can serve as an auxiliary fire barrier in the event of a fire, preventing flames and high temperatures from spreading in the gaps between the fire-resistant layers 5. Together with the fire-resistant layers 5, it forms a more robust fire protection line, effectively isolating the fire in the space above and below the floor slab 1, reducing the risk of fire spreading through the area around the ventilation duct 2, and providing more reliable protection for building fire safety.

[0048] Specifically, the vertical structure 21 is provided with a fixing ring 22, a rigid sleeve 23 and a fire-resistant layer 24 near the air duct 2. The fixing ring 22 is used to fix the vertical structure 21 to the air duct 2, and the fire-resistant layer 24 is filled between the rigid sleeve 23 and the air duct 2.

[0049] In actual use, the fixing ring 22 installed near the duct 2 on the vertical structure 21 can firmly fix the vertical structure 21 to the duct 2, ensuring a tight connection between the vertical structure 21 and the duct 2, enhancing their collaborative working ability, and allowing the vertical structure 21 to better perform its supporting and fixing functions for the duct 2 and the fireproof layer 5. The rigid sleeve 23 provides a protective shell for the duct 2. In the event of a fire, the rigid sleeve 23 can resist the direct attack of flames and high temperatures, protecting the duct 2 from rapid damage and maintaining the structural integrity and functionality of the duct 2.

[0050] The fire-resistant layer 24 is filled between the rigid sleeve 23 and the duct 2. It is made of a high-temperature resistant and flame-retardant material, which can effectively prevent the spread of flames and high temperatures through the gap between the rigid sleeve 23 and the duct 2, further enhancing the fire resistance. When a fire occurs, the fire-resistant layer 24 expands or forms a dense heat insulation layer under high temperature, blocking heat conduction and the path of flame propagation. It works in conjunction with the rigid sleeve 23, the fixing ring 22, and the vertical structure 21 to form a highly efficient fire protection system, ensuring that the duct 2 continues to operate normally during a fire, providing a guarantee for the continuous operation of the ventilation or smoke exhaust system, and improving the overall fire safety of the firewall structure.

[0051] Specifically, a fan 25 is provided on the air duct 2, and a load-bearing structure is provided between the fan 25 and the floor slab 1. The load-bearing structure includes a support frame 26 for supporting the fan 25, a steel wire rope 27 for supporting the support frame 26, and a shock-absorbing component 28. The shock-absorbing component 28 is used to vertically support the support frame 26, and the steel wire rope 27 is used for lateral auxiliary support.

[0052] In actual use, the load-bearing structure between the fan 25 installed on the duct 2 and the floor slab 1 directly supports the fan 25 through the support frame 26, providing a stable installation platform for the fan 25. This ensures that the fan 25 remains stable during operation, avoiding excessive vibration and noise caused by unstable installation, and guaranteeing the normal operation of the fan 25. The steel wire rope 27 used to support the support frame 26 plays a lateral auxiliary support role. The steel wire rope 27 has the characteristics of high strength and good flexibility, and can effectively resist the lateral forces generated by the fan 25 during operation, such as the centrifugal force generated by the rotation of the fan blades and the lateral thrust caused by changes in wind pressure. This prevents the support frame 26 and the fan 25 from lateral displacement or shaking, and enhances the stability of the fan 25 installation.

[0053] The vibration damping component 28 is used to vertically support the load-bearing frame 26. By installing spring vibration dampers 33 between the first fixing member 29 on the floor slab 1, the second fixing member 31 on the load-bearing frame 26, and the intermediate connecting member 32, it can effectively absorb the vertical vibration energy generated by the fan 25 during operation, reduce the transmission of vibration to the floor slab 1 and the building structure, reduce the impact of vibration on the building environment, and extend the service life of the fan 25 and the load-bearing structure. The load-bearing frame 26, the steel wire rope 27, and the vibration damping component 28 work together to form a comprehensive load-bearing and vibration damping system, ensuring that the fan 25 can work stably and reliably under complex operating conditions, ensuring the normal operation of the ventilation system of the duct 2 in the firewall structure, and improving the fire safety and user comfort of the building.

[0054] Specifically, the shock absorption assembly 28 includes a first fixing member 29 disposed on the floor slab 1 and a second fixing member 31 disposed on the support frame 26. The first fixing member 29 and the second fixing member 31 are fixed by an intermediate connecting member 32, and a spring shock absorber 33 is provided between the fixing member and the intermediate connecting member 32.

[0055] In actual use, the first fixing member 29 on the floor slab 1 and the second fixing member 31 on the support frame 26 in the damping assembly 28 are fixed by the intermediate connector 32. This connection method provides the installation foundation and support structure 8 for the spring damper 33. The spring damper 33 has good elasticity and damping performance. When the fan 25 is running, it can effectively absorb and buffer vibration energy through its own compression and extension deformation according to the vibration amplitude and frequency generated by the fan 25, thereby reducing the transmission of vibration from the support frame 26 to the floor slab 1.

[0056] During the start-up, shutdown, or operation of the fan 25, vibrations of varying degrees occur due to factors such as the operation of internal components and changes in air pressure. The spring damper 33 can respond to these vibrations in a timely manner, converting them into its own elastic potential energy, thereby reducing the impact of vibrations on the floor slab 1 and the building structure, reducing noise caused by vibrations, and creating a quiet environment inside the building. At the same time, the damping effect of the spring damper 33 can also reduce the wear and fatigue of the support frame 26 and fan 25 components caused by vibrations, extend the service life of the fan 25 and the support structure, ensure the stability and reliability of the fan 25 during long-term operation, ensure the continuous normal operation of the ventilation system of the duct 2 in the firewall structure, and improve the overall performance and fire safety level of the building.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A firewall structure, comprising a floor slab (1), a duct (2) disposed on the floor slab (1), and a suspended ceiling (3), wherein the duct (2) is disposed between the floor slab (1) and the suspended ceiling (3); characterized in that: Fire damper (4) is provided on the air duct (2), fireproof layer (5) is provided on the side of the floor slab (1) away from the air duct (2), fireproof layer (6) is provided on the outer surface of the air duct (2), flexible heat insulation and shock absorption body (7) with spiral structure is provided between the fireproof layer (6) and the air duct (2), and support structure (8) is provided between the air duct (2) and the floor slab (1).

2. The firewall structure according to claim 1, characterized in that: The air duct (2) is a rectangular galvanized steel plate structure, and corner support members (9) that are rigidly connected to the fireproof layer (6) are provided at the corners of the air duct (2).

3. A firewall structure according to claim 1, characterized in that: The support structure (8) includes a frame structure (11) surrounding the outer periphery of the air duct (2), a first support component (12) and a second support component (13). The support component is used to connect the floor slab (1) and the frame structure (11). The first support component (12) is used to vertically support the frame structure (11), and the second support component (13) is used to diagonally support the frame structure (11).

4. A firewall structure according to claim 3, characterized in that: The first support component (12) includes a long screw (14), one end of which is fixed to the floor slab (1) and the other end is screwed to the frame structure (11). A rectangular tube (15) is sleeved on the side of the long screw (14), and an adjusting nut (16) that abuts against the long screw (14) is provided on the side of the rectangular tube (15).

5. A firewall structure according to claim 3, characterized in that: The second support component (13) includes a first diagonal brace (17) and a second diagonal brace (18) arranged in a cross configuration. The two ends of the diagonal brace are connected to the floor slab (1) and the frame structure (11) respectively via detachable fasteners (19).

6. A firewall structure according to claim 3, characterized in that: The number of the second support components (13) is set to multiple, and the multiple second support components (13) are symmetrically arranged on the left and right sides of the first support component (12).

7. A firewall structure according to claim 1, characterized in that: The fireproof layer (5) is configured as multiple segments, and the multiple fireproof layers (5) are arranged along the length of the air duct (2). A vertical structure (21) fixed to the air duct (2) is provided between two adjacent fireproof layers (5). The vertical structure (21) is connected to the floor slab (1) and the ceiling (3).

8. A firewall structure according to claim 7, characterized in that: The vertical structure (21) is provided with a fixing ring (22), a rigid sleeve (23) and a fire-resistant layer (24) near the air duct (2). The fixing ring (22) is used to fix the vertical structure (21) to the air duct (2), and the fire-resistant layer (24) is filled between the rigid sleeve (23) and the air duct (2).

9. A firewall structure according to claim 1, characterized in that: A fan (25) is provided on the air duct (2). A load-bearing structure is provided between the fan (25) and the floor slab (1). The load-bearing structure includes a support frame (26) for supporting the fan (25), a steel wire rope (27) for supporting the support frame (26), and a shock-absorbing component (28). The shock-absorbing component (28) is used to vertically support the support frame (26), and the steel wire rope (27) is used for lateral auxiliary support.

10. A firewall structure according to claim 9, characterized in that: The shock absorption assembly (28) includes a first fixing member (29) installed on the floor slab (1) and a second fixing member (31) installed on the support frame (26). The first fixing member (29) and the second fixing member (31) are fixed by an intermediate connecting member (32), and a spring shock absorber (33) is provided between the fixing member and the intermediate connecting member (32).

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