Duct mounting structure

Abstract

The application provides a kind of wind pipe installation structure. The wind pipe installation structure includes a base, a wind pipe, a connecting assembly and a protective piece. The base is provided on a roof, the base includes a mounting hole, and the mounting hole is in communication with a reserved air opening of the roof, and the wind pipe is arranged in the mounting hole; the connecting assembly is used to connect the base and the wind pipe; the protective piece is buckled on the base, and the connecting part between the wind pipe and the base is located in the protective piece. The wind pipe installation structure of the application can isolate the connecting part from the external environment through the protective piece, avoiding the connecting part between the wind pipe and the base being directly affected by the natural environment, thereby effectively improving the protective performance of the wind pipe installation base and helping to reduce the probability of the connecting part being easily damaged and old; at the same time, the wind pipe can be rigidly connected with the roof through the base, thereby helping to improve the stability of the wind pipe installation, so as to install the wind pipe protruding higher on the roof.

Description

Technical Field

[0001] This application relates to the field of duct installation technology, and in particular to a duct installation structure. Background Technology

[0002] In the industrial and civil building sectors, building ventilation ducts are key municipal infrastructure that ensures indoor air circulation and reduces the concentration of harmful gases. Their installation stability and service life directly affect the safety and comfort of the building environment. To effectively exhaust polluted indoor air, ventilation ducts typically need to extend beyond the roof.

[0003] In related technologies, ductwork is fixedly installed on a roof-mounted base. However, since the duct connections are usually exposed to the external environment, they are susceptible to environmental factors, making them prone to aging or damage, thus affecting the stability of the duct installation. Utility Model Content

[0004] This application provides a duct installation structure to improve the protection performance of duct connection parts.

[0005] This application provides a duct installation structure, including:

[0006] A base component, which is located on the roof, includes mounting holes that communicate with a pre-reserved air vent on the roof.

[0007] Air duct, wherein the air duct is disposed within the mounting hole;

[0008] A protective component is fastened to the base component, and the connection between the air duct and the base component is located inside the protective component;

[0009] A connecting component for connecting the base component to the duct.

[0010] In one possible implementation, the base member has an annular truncated cone at one end away from the roof, and the protective member has an annular groove at one end near the base member, the annular truncated cone engaging with the annular groove.

[0011] In one possible implementation, the protective member has a tapered portion at the end away from the base member, and the outer diameter of the tapered portion gradually decreases along a first direction, which is the direction of extension from the base member to the protective member.

[0012] In one possible implementation, the base component is a concrete structure formed by pouring concrete material.

[0013] In one possible implementation, the protective element is a concrete structure formed by pouring concrete material.

[0014] In one possible implementation, a sealing element is provided between the base component and the duct, and between the protective component and the duct.

[0015] In one possible implementation, the connection component includes:

[0016] A threaded component, wherein the threaded component is disposed on the base component along the length direction of the duct, and at least a portion of the threaded component extends out of the base component;

[0017] A flange, which is fixedly sleeved on the outer periphery of the duct;

[0018] Fasteners, which are connected between the threaded part and the flange part, to connect the base part to the duct.

[0019] In one possible implementation, the flange includes:

[0020] The main body is sleeved on the air duct, and the main body is provided with a plurality of connection holes spaced apart along its circumference;

[0021] Multiple reinforcing parts are provided on the main body at intervals along the circumference of the duct, the reinforcing parts extend radially along the main body, and the reinforcing parts are connected between the main body and the outer wall of the duct.

[0022] In one possible implementation, a damping element is provided between the flange and the base.

[0023] In one possible implementation, a mounting bracket is further included, which is mounted on the roof and connected to the duct; wherein the mounting bracket includes a diagonal brace, one end of which is connected to the roof and the other end of which is connected to the duct.

[0024] The duct installation structure provided in this application embodiment can isolate the connection part from the external environment through protective components, preventing the connection part between the duct and the base from being directly affected by the erosion of wind and rain, ultraviolet radiation and temperature fluctuations, thereby effectively improving the protective performance of the duct installation base and helping to reduce the probability of the connection part being easily damaged by aging. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1This is a schematic diagram of a duct installation structure provided in an embodiment of this application;

[0027] Figure 2 A top view of the base component of the duct installation structure provided in this application embodiment installed on the roof;

[0028] Figure 3 This is a schematic diagram of the duct installation structure provided in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of another duct installation structure provided in an embodiment of this application;

[0030] Figure 5 A schematic diagram of the installation of the base components and flange components in the duct installation structure provided in the embodiments of this application;

[0031] Figure 6 A top view of the flange component in the duct installation structure provided in this application embodiment;

[0032] Figure 7 This is a schematic diagram of another scenario for the duct installation structure provided in the embodiments of this application.

[0033] Figure label:

[0034] 10 - Roof; 11 - Reserved air vent; 20 - Air duct;

[0035] 100 - Basic component; 101 - Mounting hole; 110 - Annular cone;

[0036] 200 - Protective component; 210 - Annular groove; 220 - Conical part;

[0037] 300 - Connecting assembly; 310 - Threaded part; 320 - Flange part; 321 - Body part; 322 - Reinforcement part; 323 - Connecting hole; 330 - Fastener;

[0038] 400 - Fixed frame; 410 - Diagonal brace.

[0039] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0040] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0041] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0042] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner. First, the terms involved in this application are explained:

[0043] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0044] Please see Figures 1 to 7 The duct installation structure provided in this application embodiment includes a base component 100, a duct 20, a connecting component 300, and a protective component 200.

[0045] The base component 100 is located on the roof 10. The base component 100 includes a mounting hole 101, and the mounting hole 101 is connected to the reserved air vent 11 of the roof 10. The air duct 20 is located in the mounting hole 101.

[0046] The base component 100 provides a stable foundation for the installation of the duct 20, while the mounting hole 101 provides a passage for the duct 20 to extend out of the roof and form a path with the indoor ventilation system, ensuring that indoor polluted air can be discharged through the duct 20 and the reserved air outlet 11. The base component 100 can be made of materials with certain strength and corrosion resistance, such as concrete or metal alloys.

[0047] The duct 20 serves as a channel for air circulation, allowing polluted indoor air to exit through the mounting hole 101 onto the roof and then exhaust to the outside, thus achieving indoor air circulation and reducing the concentration of harmful gases. The diameter of the duct 20 is matched with the mounting hole 101 to ensure stable installation within the mounting hole 101.

[0048] The connecting assembly 300 is used to connect the base component 100 and the duct 20. For example, the connecting assembly 300 can adopt common connection methods such as bolt connection and flange connection.

[0049] The protective component 200 provides effective physical isolation to the connection point, preventing the connection between the duct 20 and the base component 100 from being directly exposed to the external environment. The shape of the protective component 200 is adapted to the mating structure of the base component 100 and the duct 20, and can completely accommodate the connection point between the duct 20 and the base component 100 within it. For example, the protective component 200 has a through hole for the duct 20 to pass through, and has a cavity inside for the connection point, so that the protective component 200 is fitted around the duct 20 and places the connection point in the cavity, thereby protecting the connection.

[0050] Therefore, the duct installation structure provided in this application embodiment can isolate the connection part from the external environment through the protective component 200, avoiding the connection part between the duct 20 and the base component 100 from being directly affected by the erosion of wind and rain, ultraviolet radiation and temperature changes, thereby effectively improving the protective performance of the duct 20 installation base and helping to reduce the probability of the connection part being easily damaged by aging.

[0051] Furthermore, due to the adoption of the duct installation structure, the aging and corrosion damage of the connection parts are significantly reduced, the stability of the duct 20 installation is improved, and the service life of the duct 20 is extended, thereby ensuring the normal operation of the building ventilation system and reducing maintenance costs caused by damage to the connection parts.

[0052] In one possible implementation, please refer to Figure 3 The base component 100 has an annular cone 110 at one end away from the roof 10, and the protective component 200 has an annular groove 210 at one end near the base component 100. The annular cone 110 and the annular groove 210 are engaged.

[0053] The outer surface of the annular cone 110 is a conical surface, and the inner surface of the annular groove 210 is an inner conical surface that matches the outer surface of the annular cone 110. The two form a snap-fit ​​engagement in the axial direction. When installing the protective component 200, the snap-fit ​​engagement between the annular cone 110 and the annular groove 210 helps workers achieve proper positioning, reduces installation difficulty, and improves installation efficiency. Even if slight misalignment occurs during high-altitude operations, the inclined side of the annular cone 110 can exert a radial corrective force on the protective component 200 through contact compression, guiding the annular groove 210 to automatically adjust its position until it is completely fitted with the annular cone 110.

[0054] On the other hand, since the outer surface of the annular cone 110 has a certain slope, rainwater entering through the gap between the protective member 200 and the duct 20 can flow out along the slope of the outer surface of the annular cone 110 under the action of gravity, thereby reducing the accumulation of rainwater in the connection part inside the protective member 200, which helps to improve the drainage capacity of the duct installation structure and thus reduces the risk of moisture corrosion of the connection component 300.

[0055] In one possible implementation, please refer to Figure 4 The protective component 200 has a tapered portion 220 at the end away from the base component 100. The outer diameter of the tapered portion 220 gradually decreases along a first direction, which is the direction of extension from the base component 100 to the protective component 200.

[0056] The inclined surface of the conical portion 220 can provide a guiding path for rainwater and snow, thereby reducing the amount of water retained on the protective member 200. When rain or snow falls on the surface of the conical portion 220, under the combined action of gravity and the inclined angle of the conical surface of the conical portion 220, the rain or snow will slide along the edge of the conical surface and fall onto the roof 10, avoiding the formation of water or snow accumulation on the top of the protective member 200.

[0057] Compared to a flat-top structure, the protective component 200 in this embodiment can reduce the space where rainwater and snow can accumulate at the top of the protective component 200, and reduce the probability that rainwater will seep into the gap between the base component 100 and the protective component 200 along the outer wall of the protective component 200.

[0058] In one possible implementation, the base component 100 is a concrete structure formed by pouring concrete material.

[0059] Concrete itself has good resistance to weathering and UV aging. In the open environment of the rooftop, it is not easy for the material to deteriorate due to long-term exposure, and it can maintain the structural integrity for a long time, providing a continuous and stable installation foundation for the connection parts.

[0060] The foundation component 100 can be constructed by on-site casting or presented as a precast component. If the foundation component 100 is constructed by on-site casting, the concrete can be directly integrated with the steel reinforcement structure or base material of the roof 10 to form an integrated structure. If the foundation component 100 is a precast component, it is fixed to the roof 10 through embedded parts or grouting. The inner wall of the mounting hole 101 can be provided with a smooth concrete surface layer, or a metal sleeve can be embedded during casting to improve the stability of the fit with the duct 20.

[0061] The strength grade of concrete can be selected according to the weight of the duct 20 and the load requirements of the roof 10 (such as C15-C40). The foundation component 100 can be equipped with steel mesh or fiber reinforcement materials as needed to enhance crack resistance and load-bearing capacity, and avoid structural cracking caused by long-term stress or temperature changes.

[0062] In one possible implementation, the protective element 200 is also a concrete structure formed by pouring concrete material.

[0063] The protective component 200 and the concrete base component 100 are made of the same material, and their coefficients of thermal expansion are basically the same. When the temperature changes drastically, the gap caused by the difference in thermal expansion and contraction of the materials can be reduced, thereby reducing the risk of rainwater and moisture seeping into the internal connection parts through the gap.

[0064] The protective component 200 can also be achieved through on-site casting or presented as a precast component. If the protective component 200 is a precast component, a structure with an annular groove 210 can be prefabricated in the factory according to the dimensions of the annular truncated cone 110 of the base component 100 to ensure a good fit when it is snapped into the base component 100. If the protective component 200 is cast on-site, after the base component 100 is installed, the annular truncated cone 110 of the base component 100 can be used as a mold reference to directly cast the protective component 200, making the gap between the two smaller.

[0065] In one possible implementation, a sealing element is provided between the base component 100 and the duct 20, and between the protective component 200 and the duct 20, which is not shown in the figure.

[0066] The seals can be made of materials with elastic recovery and weather resistance, such as EPDM rubber and silicone. Their shape can be designed as an annular sealing ring or a strip-shaped sealing gasket, depending on the gap characteristics of the installation location. The cross-sectional dimensions of the seal must be compatible with the mating gap to ensure that it can produce appropriate elastic deformation after installation to fill the gap and maintain continuous sealing pressure.

[0067] In terms of installation position, the seal between the base component 100 and the duct 20 can be embedded in the inner wall groove of the mounting hole 101 of the base component 100, or sleeved on the corresponding position of the outer wall of the duct 20, so that it is clamped in the mating gap between the base component 100 and the duct 20; the seal between the protective component 200 and the duct 20 can be set on the annular flange of the protective component 200 near the duct 20, or in the annular groove of the outer wall of the duct 20. When the protective component 200 is fastened to the base component 100, the seal is pressed between the protective component 200 and the duct 20.

[0068] This embodiment effectively prevents moisture and corrosive media from contacting the connecting component 300 through the sealing element, reducing the corrosion of metal connectors and the aging rate of non-metallic connectors, thereby extending the service life of the connecting component 300.

[0069] In one possible implementation, please refer to Figure 3 The connecting assembly 300 includes a threaded part 310, a flange part 320, and a fastener 330.

[0070] The threaded part 310 is provided on the base part 100 along the length of the duct 20, and at least part of the threaded part 310 extends out of the base part 100.

[0071] The threaded component 310 can be a high-strength bolt or threaded rod, and is fixedly installed on the base component 100 along the length of the duct 20, i.e., perpendicular to the roof 10. Specifically, the threaded component 310 can be connected to the base component 100 by pre-embedding or welding, ensuring that the threaded component 310 and the base component 100 form a rigid whole. At least a portion of the threaded component 310 extends beyond the end of the base component 100 away from the roof 10, and the outer circumferential surface of the extended portion is provided with continuous threads, providing a mating structure for subsequent connection with the fastener 330. The number of threaded components 310 can be set according to the diameter of the duct 20 and the stress requirements. The number of threaded components 310 includes, but is not limited to, 3, 4, 5, and 6. Multiple threaded components 310 can be evenly distributed circumferentially along the mounting holes 101 of the base component 100 to ensure balanced stress.

[0072] Flange 320 is fixedly fitted onto the outer periphery of duct 20. Flange 320 can be an annular plate structure, with its inner diameter matching the outer circumferential diameter of duct 20. It is fixed onto the outer circumferential surface of duct 20 by welding, bolting, or integral molding. The position of flange 320 corresponds to the portion of threaded component 310 extending beyond base component 100. The material of flange 320 can be the same as duct 20 or a higher-strength metal material. Its end face has a through hole corresponding to the position of threaded component 310, with the diameter of the through hole slightly larger than the outer diameter of threaded component 310 to ensure smooth passage of threaded component 310.

[0073] Fastener 330 connects the threaded part 310 and the flange part 320 to connect the base component 100 to the duct 20. Fastener 330 can be a nut adapted to the threaded part 310 and can be used with a washer. After the threaded part 310 passes through the through hole of the flange part 320, the fastener 330 is tightened onto the portion of the threaded part 310 that extends out of the flange part 320. By applying axial pressure, the flange part 320 is tightly fitted to the base component 100, thereby achieving a fixed connection between the duct 20 and the base component 100.

[0074] In one possible implementation, please refer to Figure 5 and Figure 6 The flange 320 includes a body 321 and multiple reinforcing parts 322.

[0075] The main body 321 is fitted onto the air duct 20, and the main body 321 is provided with a plurality of connecting holes 323 at intervals along its circumference.

[0076] The body part 321 serves as the main structure of the flange 320. It engages with the threaded part 310 and fasteners 330 via connecting holes 323 to transfer the load of the duct 20 to the base part 100. Simultaneously, its annular structure ensures uniform load distribution along the circumference. The spaced arrangement of the connecting holes 323 ensures balanced stress distribution on the threaded part 310, preventing localized stress concentration.

[0077] For example, the body portion 321 can be an annular plate structure, with its inner diameter adapted to the outer circumferential diameter of the duct 20, and is fitted onto the outer circumferential surface of the duct 20 by welding, bolting, or other methods. The number and position of the connecting holes 323 correspond one-to-one with the threaded parts 310, and the hole diameter is slightly larger than the outer diameter of the threaded parts 310 to ensure that the threaded parts 310 can pass through smoothly and cooperate with the fasteners 330. The thickness of the body portion 321 can be designed according to the diameter of the duct 20 and the load requirements. For example, the thickness of the body portion 321 can be 8-15mm, and the material can be a metal material compatible with the duct 20 or the threaded parts 310, such as carbon steel or stainless steel, to avoid electrochemical corrosion.

[0078] Multiple reinforcing parts 322 are spaced apart on the main body 321 along the circumference of the air duct 20. The reinforcing parts 322 extend radially along the main body 321 and are connected between the main body 321 and the outer wall of the air duct 20.

[0079] The reinforcing part 322 connects the main body 321 to the outer wall of the duct 20, forming radial support to compensate for the insufficient rigid connection between the inner periphery of the main body 321 and the duct 20, and to reduce the radial deformation of the main body 321 caused by stress. Multiple reinforcing parts 322 are evenly distributed circumferentially to enhance the overall torsional stiffness of the flange 320 and prevent relative displacement between the duct 20 and the main body 321 under torsional force.

[0080] For example, the reinforcing part 322 is a triangular, trapezoidal, or rectangular plate-like structure, evenly spaced along the circumference of the duct 20 on the side of the body part 321 facing the base member 100, i.e., the contact surface between the body part 321 and the duct 20. One end of the reinforcing part 322 is welded to or integrally formed with the inner periphery of the body part 321, and the other end extends radially inward along the body part 321 and is welded and fixed to the outer wall of the duct 20, forming a triangular support structure of body part 321-reinforcing part 322-duct 20.

[0081] The number of reinforcing parts 322 can be determined according to the connecting holes 323. For example, one reinforcing part 322 can be provided between every two connecting holes 323. The thickness of the reinforcing part 322 can be the same as or slightly thicker than that of the main body part 321 to ensure sufficient structural strength.

[0082] In one possible implementation, a damping element, not shown in the figure, is provided between the flange 320 and the base 100.

[0083] The damping component utilizes its viscoelastic properties to dissipate vibration energy into heat through molecular friction within the material when the duct 20 vibrates due to wind or equipment operation. This reduces vibration transmission efficiency and minimizes rigid collisions between the flange 320 and the base component 100. Simultaneously, when temperature changes cause thermal expansion and contraction differences between the duct 20 and the base component 100, the damping component can absorb some of the displacement through elastic deformation, alleviating rigid stress between them and preventing component deformation or fastener overload due to stress concentration.

[0084] For example, the damping component can be made of viscoelastic materials such as high-damping rubber and polyurethane elastomer, which have good shock absorption and cushioning performance and aging resistance.

[0085] The structure of the damping component can be designed as an annular gasket or a block structure distributed circumferentially, depending on the mating surface of the flange 320 and the base 100. The inner diameter of the annular gasket is not less than the outer diameter of the duct 20, and the outer diameter is not greater than the outer diameter of the body 321. Furthermore, a clearance hole is provided on the gasket at the position corresponding to the connection hole 323 to ensure that the threaded component 310 can pass through smoothly. The block structure is set in the area between adjacent connection holes 323 to avoid interference with the fastener 330.

[0086] Therefore, this embodiment helps to reduce rigid collisions between flange 320 and base 100 and reduce stress transmitted to fastener 330 by the deformation of the damping component, thereby helping to ensure the connection stability between duct 20 and base 100.

[0087] In one possible implementation, please refer to Figure 7The duct installation structure also includes a fixing frame 400, which is mounted on the roof 10 and connected to the duct 20. The fixing frame 400 includes a diagonal brace 410, one end of which is connected to the roof 10 and the other end of which is connected to the duct 20.

[0088] The fixing frame 400 can connect the roof 10 to the duct 20. The diagonal brace 410 utilizes the principle of triangular stability to decompose the horizontal load on the duct 20, such as wind force and lateral vibration, into tensile or compressive forces along the axial direction of the diagonal brace 410. These forces are then transmitted to the foundation of the roof 10 through the diagonal brace 410, dispersing the horizontal force originally borne by the foundation component 100 and the connecting component 300 to a larger area of ​​the roof 10 structure, thereby reducing the local stress load at the connection point.

[0089] For example, the mounting bracket 400 can be rigidly connected to the duct 20 by a clamp, providing additional radial constraint to the duct 20 and reducing the sway amplitude of the duct 20 under wind force.

[0090] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. An air duct mounting structure characterized by comprising: include: A base component (100) is provided on the roof (10). The base component (100) includes a mounting hole (101) and the mounting hole (101) is connected to a reserved air vent (11) of the roof (10). Air duct (20), the air duct (20) is disposed in the mounting hole (101); A protective component (200) is fastened to the base component (100), and the connection between the air duct (20) and the base component (100) is located inside the protective component (200); A connecting component (300) is used to connect the base component (100) to the duct (20).

2. The duct installation structure according to claim 1, characterized in that, The base component (100) has an annular cone (110) at one end away from the roof (10), and the protective component (200) has an annular groove (210) near one end of the base component (100). The annular cone (110) engages with the annular groove (210).

3. The duct installation structure according to claim 2, characterized in that, The protective component (200) has a tapered portion (220) at the end away from the base component (100). The outer diameter of the tapered portion (220) gradually decreases along a first direction, which is the direction of extension from the base component (100) to the protective component (200).

4. The duct installation structure according to claim 1, characterized in that, The base component (100) is a concrete structure formed by pouring concrete material.

5. The duct installation structure according to claim 1, characterized in that, The protective component (200) is a concrete structure formed by pouring concrete material.

6. The duct installation structure according to claim 5, characterized in that, A sealing element is provided between the base component (100) and the air duct (20), and between the protective component (200) and the air duct (20).

7. The duct installation structure according to any one of claims 1 to 6, characterized in that, The connection component (300) includes: A threaded component (310) is provided on the base component (100) along the length direction of the duct (20), and at least a portion of the threaded component (310) extends out of the base component (100); Flange (320), the flange (320) is fixedly sleeved on the outer periphery of the air duct (20); Fastener (330) is connected between the threaded part (310) and the flange part (320) to connect the base part (100) to the duct (20).

8. The duct installation structure according to claim 7, characterized in that, The flange (320) includes: The main body (321) is sleeved on the air duct (20), and the main body (321) is provided with a plurality of connecting holes (323) at intervals along its circumference; Multiple reinforcing parts (322) are arranged circumferentially on the main body (321) along the air duct (20), the reinforcing parts (322) extend radially along the main body (321), and the reinforcing parts (322) are connected between the main body (321) and the outer wall of the air duct (20).

9. The duct installation structure according to claim 7, characterized in that, A damping element is provided between the flange (320) and the base (100).

10. The duct mounting structure according to claim 7, wherein It also includes a fixing frame (400), which is mounted on the roof (10) and connected to the air duct (20); The fixing frame (400) includes a diagonal brace (410), one end of which is connected to the roof (10) and the other end is connected to the air duct (20).

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