Fire-fighting and smoke-discharging composite air pipe convenient to install
Through structural designs such as limit blocks and limit frames, the problems of complicated installation and unstable connection of fire smoke exhaust ducts are solved, achieving rapid installation, stable connection and efficient sealing, thus improving the performance and safety of the fire smoke exhaust system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YUEWANNIAN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-24
AI Technical Summary
The existing fire exhaust ducts are cumbersome to install, time-consuming and labor-intensive. Gaps are easily formed at the joints, resulting in insufficient air volume, affecting temperature regulation and ventilation. Furthermore, they may deform and leak after long-term use.
The structure adopts a design with limiting blocks, limiting frames, guide rails and springs. The limiting blocks are inserted into the installation blocks, the connecting frames are inserted into the guide rails for limiting, and the springs push the guide frames to slide, so as to achieve a stable connection of the air duct plate. A flame-retardant layer and a color steel layer are set on the outside of the air duct to improve stability and protection performance.
It simplifies the duct installation process, improves installation stability, prevents separation and deformation, ensures sealing and flame retardant performance, extends service life, reduces noise, and enhances the effectiveness and safety of the fire smoke exhaust system.
Smart Images
Figure CN224162699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire safety technology, and in particular to a fire smoke exhaust composite duct that is easy to install. Background Technology
[0002] Fire exhaust ducts are a crucial component of fire protection systems, primarily used to remove smoke and heat during a fire. In a fire, large amounts of smoke and heat can accumulate rapidly, not only obstructing visibility during evacuation but also potentially causing poisoning and suffocation, seriously threatening lives. Fire exhaust ducts, in conjunction with equipment such as exhaust fans, create smoke extraction channels. When a fire occurs, the exhaust fans activate, and smoke and heat are quickly expelled from the building through the ducts, creating favorable conditions for evacuation and fire rescue.
[0003] Existing ductwork typically uses multiple sets of bolts for installation and fixation. Installation requires tightening each bolt individually, with each bolt undergoing alignment, initial securing, and final tightening – a complex and time-consuming process. It necessitates the use of various tools such as wrenches and screwdrivers, and frequent tool changes not only slow down the installation process but can also lead to delays due to improper tool use or damage. Furthermore, over time, gaps can form at duct joints due to separation, and the connecting plates may deform or bend, causing significant air leakage. This can result in insufficient airflow, failing to achieve the desired temperature control or ventilation effects. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A fire-fighting smoke exhaust composite duct that is easy to install includes a duct body. A first mounting plate and a second mounting plate are fixed to both ends of the duct body, respectively. Multiple sets of mounting blocks are fixed to the top of the first mounting plate, and multiple sets of limiting components are fixed to the top of the second mounting plate. Two sets of fixing blocks are fixed to the top of the first mounting plate. A limiting frame for limiting the first mounting plate and the second mounting plate is snapped onto the outside of the fixing blocks. A flame-retardant layer is installed on the outside of the duct body, and a color steel layer is fixed to the outside of the flame-retardant layer.
[0007] The limiting component includes a mounting bracket fixed to the top of the second mounting plate. A guide rail is fixed to the inner wall of the mounting bracket. A guide frame is slidably connected to the outer side of the guide rail. A first push block is fixed to the top of the guide frame. A limiting block for limiting the mounting block is fixed to one side of the guide frame. The outer side of the limiting block penetrates the inner wall of the mounting bracket and engages with the inner wall of the mounting block.
[0008] As a preferred embodiment of the fire-fighting smoke exhaust composite duct that is easy to install according to this utility model, a sealing gasket is provided on one side of both the first mounting plate and the second mounting plate, a connecting block is fixed on the outer side of the guide rail, a first spring is fixed on one side of the connecting block, and the end of the first spring away from the connecting block is fixed to one side of the guide frame.
[0009] As a preferred embodiment of the fire-fighting smoke exhaust composite duct that is easy to install according to this utility model, the inner wall of the guide rail is fitted with a connecting frame for limiting the guide frame, and the outer side of the connecting frame penetrates the inner wall of the guide frame and is fitted with the inner wall of the mounting frame.
[0010] As a preferred embodiment of the fire-fighting smoke exhaust composite duct of this utility model, wherein: the top of the limiting frame is fixed with a connecting seat, the inner wall of the connecting seat is slidably connected with a limiting plate for limiting the fixed block, and the outer side of the limiting plate is inserted into the inner wall of the fixed block.
[0011] As a preferred embodiment of the fire-fighting smoke exhaust composite duct of this utility model, wherein: a second push block is fixed to the top of the limiting plate, and the bottom of the second push block is fixedly connected to the top of the limiting plate; a limiting rod is fixed to the inner wall of the connecting seat, and the outer side of the limiting rod is slidably connected to the inner wall of the limiting plate.
[0012] As a preferred embodiment of the fire-fighting smoke exhaust composite duct that is easy to install according to this utility model, a second spring is provided on the outer side of the limiting rod, and the two ends of the second spring are respectively fixedly connected to the inner wall of the connecting seat and one side of the limiting plate.
[0013] As a preferred embodiment of the fire-fighting smoke exhaust composite duct that is easy to install according to this utility model, the inner wall of the duct body is provided with an anti-corrosion coating, and the interior of the anti-corrosion coating is provided with sound insulation cotton.
[0014] The beneficial effects of this utility model are as follows: by inserting the limiting block into the mounting block, the first and second mounting plates are limited after installation. Then, the connecting frame is inserted to limit the guide frame, thereby improving the stability of the first and second mounting plates after installation. The second spring retracts and clamps the limiting frame on the outside of the first and second mounting plates. The limiting frame is clamped on the outside of the fixing block, limiting the first and second mounting plates and avoiding the problem of separation or deformation of the first and second mounting plates after installation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0016] Figure 1 Overall structural diagram of a fire-fighting smoke exhaust composite duct for easy installation.
[0017] Figure 2 A schematic diagram of the duct body in a fire-fighting smoke exhaust composite duct designed for easy installation.
[0018] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.
[0019] Figure 4 A schematic diagram of the structure of the first and second mounting plates in a fire-fighting smoke exhaust composite duct designed for easy installation.
[0020] Figure 5 A schematic diagram of the limiting component in a fire-fighting smoke exhaust composite duct for easy installation;
[0021] Figure 6 A schematic diagram of the limiting bracket in a fire-fighting smoke exhaust composite duct designed for easy installation.
[0022] The following are the labeling elements in the diagram: 1. Duct body; 2. First mounting plate; 3. Second mounting plate; 4. Mounting block; 5. Limiting assembly; 51. Mounting bracket; 52. Guide rail; 53. Guide frame; 54. First push block; 55. Limiting block; 6. Fixing block; 7. Limiting frame; 8. Flame retardant layer; 9. Color steel layer; 10. Sealing gasket; 11. Connecting block; 12. First spring; 13. Connecting frame; 14. Connecting seat; 15. Limiting plate; 16. Second push block; 17. Limiting rod; 18. Second spring; 19. Anti-corrosion coating; 20. Sound insulation cotton. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0026] Example 1:
[0027] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a fire-fighting smoke exhaust composite duct that is easy to install. It includes a duct body 1, with a first mounting plate 2 and a second mounting plate 3 fixed at both ends of the duct body 1, a plurality of mounting blocks 4 fixed at the top of the first mounting plate 2, a plurality of limiting components 5 fixed at the top of the second mounting plate 3, two sets of fixing blocks 6 fixed at the top of the first mounting plate 2, and a limiting frame 7 for limiting the first mounting plate 2 and the second mounting plate 3 snapped onto the outside of the fixing blocks 6, a flame-retardant layer 8 installed on the outside of the duct body 1, and a color steel layer 9 fixed on the outside of the flame-retardant layer 8.
[0028] The outer side of mounting block 4 engages with the inner wall of the second mounting plate 3, securing the second mounting plate 3 at the bottom of one set of duct bodies 1 onto the first mounting plate 2 at the top of another set of duct bodies 1. This allows mounting block 4 to engage with the interior of the second mounting plate 3, and fixing block 6 to engage with the inner wall of the second mounting plate 3. This allows for the initial installation of the two sets of duct bodies 1. The limiting component 5 can limit the mounting block 4, improving the installation effect between the first mounting plate 2 and the second mounting plate 3 and enhancing the stability of the duct body 1 assembly. Then, the limiting bracket 7 engages with the first mounting plate 2 and the second mounting plate 3. On the outside of 3, the limiting bracket 7 is locked on the outside of the fixing block 6 to limit the first mounting plate 2 and the second mounting plate 3, so as to avoid the separation or deformation of the first mounting plate 2 and the second mounting plate 3 after installation. The flame retardant layer 8 improves the flame retardant performance of the duct body 1, which can effectively prevent the spread of fire in the event of a fire and ensure the normal operation of the fire exhaust system. The color steel layer 9 protects the flame retardant layer 8 and enhances the appearance of the duct body 1. At the same time, the color steel layer 9 also has a certain degree of corrosion resistance and weather resistance, which can extend the service life of the duct body 1.
[0029] The limiting component 5 includes a mounting bracket 51 fixed to the top of the second mounting plate 3. A guide rail 52 is fixed to the inner wall of the mounting bracket 51. A guide frame 53 is slidably connected to the outer side of the guide rail 52. A first push block 54 is fixed to the top of the guide frame 53. A limiting block 55 for limiting the mounting block 4 is fixed to one side of the guide frame 53. The outer side of the limiting block 55 penetrates the inner wall of the mounting bracket 51 and engages with the inner wall of the mounting block 4.
[0030] The guide frame 53 slides on the outside of the guide rail 52, which drives the limiting block 55 to move, so that the limiting block 55 is inserted into the mounting block 4, thereby limiting the first mounting plate 2 and the second mounting plate 3 after installation and improving the stability of the first mounting plate 2 and the second mounting plate 3 after installation.
[0031] Example 2:
[0032] This is the second embodiment of the present invention, which is based on the previous embodiment.
[0033] Specifically, a sealing gasket 10 is provided on one side of both the first mounting plate 2 and the second mounting plate 3. A connecting block 11 is fixed on the outer side of the guide rail 52. A first spring 12 is fixed on one side of the connecting block 11, and the end of the first spring 12 away from the connecting block 11 is fixed to one side of the guide frame 53.
[0034] The sealing gasket 10 acts as a seal at the connection of the duct body 1 to prevent smoke leakage and ensure the sealing and effectiveness of the fire smoke exhaust system. The first spring 12 can push the guide frame 53 and the limit block 55 to move.
[0035] Specifically, the inner wall of the guide rail 52 is fitted with a connecting frame 13 for limiting the guide frame 53, and the outer side of the connecting frame 13 penetrates the inner wall of the guide frame 53 and is fitted with the inner wall of the mounting frame 51.
[0036] Limiting block 55 when installation block 4 is not installed Figure 5 As shown on the right, the limiting block 55 is retracted into the mounting bracket 51. The connecting bracket 13 is inserted into the guide rail 52 to limit the guide bracket 53, and the second mounting plate 3 is clamped on top of the first mounting plate 2, so that the mounting block 4 is clamped into the second mounting plate 3. At this time, the connecting bracket 13 is pulled out, and the first spring 12 returns to its original position, pushing the guide bracket 53 to slide on the outside of the guide rail 52. The sliding of the guide bracket 53 on the outside of the guide rail 52 drives the limiting block 55 to move, so that the limiting block 55 is inserted into the mounting block 4, limiting the first mounting plate 2 and the second mounting plate 3 after installation. Then the connecting bracket 13 is inserted. Figure 5Positioned on the left side, the connecting bracket 13 limits the guide bracket 53, improving the stability of the first mounting plate 2 and the second mounting plate 3 after installation. When the duct body 1 needs to be disassembled, the two sets of connecting brackets 13 are pulled out, and the two sets of first push blocks 54 are pulled to drive the guide bracket 53 to slide on the outside of the guide rail 52, so that the two sets of guide brackets 53 slide at the center of the guide rail 52, causing the limiting block 55 to disengage from the mounting block 4 and retract into the mounting bracket 51. At this time, the first spring 12 retracts, and then the connecting bracket 13 is inserted into... Figure 5 The right-side connecting bracket 13 is positioned to limit the limiting block 55 inside the mounting bracket 51, facilitating the subsequent installation of the duct body 1.
[0037] Specifically, a connecting seat 14 is fixed to the top of the limiting frame 7, and a limiting plate 15 for limiting the fixing block 6 is slidably connected to the inner wall of the connecting seat 14, and the outer side of the limiting plate 15 is inserted into the inner wall of the fixing block 6.
[0038] By sliding the limiting plate 15 on the inner wall of the connecting seat 14, the limiting plate 15 is inserted into the inner wall of the fixing block 6, thereby limiting the installed limiting frame 7 and improving the stability between the limiting frame 7 and the fixing block 6.
[0039] Specifically, a second push block 16 is fixed to the top of the limiting plate 15, and the bottom of the second push block 16 is fixedly connected to the top of the limiting plate 15. A limiting rod 17 is fixed to the inner wall of the connecting seat 14, and the outer side of the limiting rod 17 is slidably connected to the inner wall of the limiting plate 15.
[0040] The limiting rod 17 limits the limiting plate 15, thereby improving the stability of the limiting plate 15 when it moves.
[0041] Specifically, a second spring 18 is provided on the outer side of the limiting rod 17, and the two ends of the second spring 18 are fixedly connected to the inner wall of the connecting seat 14 and one side of the limiting plate 15, respectively.
[0042] After the first mounting plate 2 and the second mounting plate 3 are installed, the second push block 16 is pulled to move the limiting plate 15 inside the connecting seat 14, causing the limiting plate 15 to retract into the connecting seat 14, which causes the second spring 18 to contract, locking the limiting frame 7 on the outside of the first mounting plate 2 and the second mounting plate 3. The limiting frame 7 is locked on the outside of the fixing block 6, limiting the first mounting plate 2 and the second mounting plate 3 to prevent separation or deformation after installation. The second push block 16 is released, and the second spring 18 returns to its original position, causing the limiting plate 15 to slide outside the limiting rod 17, so that the limiting plate 15 is inserted into the fixing block 6, limiting the installed limiting frame 7 and improving the stability between the limiting frame 7 and the fixing block 6.
[0043] Example 3:
[0044] This is the third embodiment of the present invention, which is based on the first two embodiments.
[0045] Specifically, the inner wall of the duct body 1 is provided with an anti-corrosion coating 19, and the inside of the anti-corrosion coating 19 is provided with sound insulation cotton 20.
[0046] The anti-corrosion coating 19 protects the duct body 1 from corrosive substances that may be contained in the internal airflow, extending the service life of the duct body 1. The sound insulation cotton 20 reduces the noise generated by the airflow inside the duct body 1, improving the comfort of the indoor environment.
[0047] When in use, if installation block 4 is not installed, limit block 55 is as follows: Figure 5 As shown on the right, the limiting block 55 is retracted into the mounting bracket 51. The connecting bracket 13 is inserted into the guide rail 52 to limit the guide bracket 53, and the second mounting plate 3 is clamped on top of the first mounting plate 2, so that the mounting block 4 is clamped into the second mounting plate 3. At this time, the connecting bracket 13 is pulled out, and the first spring 12 returns to its original position, pushing the guide bracket 53 to slide on the outside of the guide rail 52. The sliding of the guide bracket 53 on the outside of the guide rail 52 drives the limiting block 55 to move, so that the limiting block 55 is inserted into the mounting block 4, limiting the first mounting plate 2 and the second mounting plate 3 after installation. Then the connecting bracket 13 is inserted. Figure 5 Positioned on the left side, the connecting bracket 13 limits the guide bracket 53, improving the stability of the first mounting plate 2 and the second mounting plate 3 after installation. When the duct body 1 needs to be disassembled, the two sets of connecting brackets 13 are pulled out, and the two sets of first push blocks 54 are pulled to drive the guide bracket 53 to slide on the outside of the guide rail 52, so that the two sets of guide brackets 53 slide at the center of the guide rail 52, causing the limiting block 55 to disengage from the mounting block 4 and retract into the mounting bracket 51. At this time, the first spring 12 retracts, and then the connecting bracket 13 is inserted into... Figure 5Position 13 on the right side of the connecting bracket limits the limiting block 55 inside the mounting bracket 51, facilitating subsequent installation of the duct body 1. After the first mounting plate 2 and the second mounting plate 3 are installed, pulling the second push block 16 moves the limiting plate 15 inside the connecting seat 14, causing the second spring 18 to retract and lock the limiting frame 7 outside the first mounting plate 2 and the second mounting plate 3. The limiting frame 7 is also locked outside the fixing block 6, limiting the first mounting plate 2 and the second mounting plate 3 to prevent separation or deformation after installation. Releasing the second push block 16 causes the second spring 18 to reset, causing the limiting plate 15 to slide outside the limiting rod 17, inserting the limiting plate 15 into the fixing block 6, thus limiting the installed limiting frame 7 and raising the gap between the limiting frame 7 and the fixing block 6. The stability of the air duct body 1 is ensured by sealing the connection of the duct body 1 with the sealing gasket 10 to prevent smoke leakage and ensure the sealing and effectiveness of the fire exhaust system. The guide frame 53 and the limit block 55 can be moved by the first spring 12. The flame retardant layer 8 improves the flame retardant performance of the duct body 1 and can effectively prevent the spread of fire in the event of a fire, ensuring the normal operation of the fire exhaust system. The color steel layer 9 protects the flame retardant layer 8 and enhances the appearance of the duct body 1. At the same time, the color steel layer 9 also has a certain degree of corrosion resistance and weather resistance, which can extend the service life of the duct body 1. The anti-corrosion coating 19 protects the duct body 1 from the corrosion of corrosive substances that may be contained in the internal airflow, extending the service life of the duct body 1. The sound insulation cotton 20 reduces the noise generated by the airflow inside the duct body 1 and improves the comfort of the indoor environment.
[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A fire-fighting smoke exhaust composite duct that is easy to install, comprising a duct body (1), characterized in that: The duct body (1) is fixed with a first mounting plate (2) and a second mounting plate (3) at both ends respectively. The top of the first mounting plate (2) is fixed with multiple sets of mounting blocks (4). The top of the second mounting plate (3) is fixed with multiple sets of limiting components (5). The top of the first mounting plate (2) is fixed with two sets of fixing blocks (6). The outer side of the fixing blocks (6) is snapped with a limiting frame (7) for limiting the first mounting plate (2) and the second mounting plate (3). The outer side of the duct body (1) is fitted with a flame-retardant layer (8). The outer side of the flame-retardant layer (8) is fixed with a color steel layer (9). The limiting component (5) includes a mounting bracket (51) fixed to the top of the second mounting plate (3). A guide rail (52) is fixed to the inner wall of the mounting bracket (51). A guide frame (53) is slidably connected to the outer side of the guide rail (52). A first push block (54) is fixed to the top of the guide frame (53). A limiting block (55) for limiting the mounting block (4) is fixed to one side of the guide frame (53). The outer side of the limiting block (55) penetrates the inner wall of the mounting bracket (51) and engages with the inner wall of the mounting block (4).
2. The fire-fighting smoke exhaust composite duct as described in claim 1, characterized in that: A sealing gasket (10) is provided on one side of both the first mounting plate (2) and the second mounting plate (3). A connecting block (11) is fixed on the outside of the guide rail (52). A first spring (12) is fixed on one side of the connecting block (11), and the end of the first spring (12) away from the connecting block (11) is fixed to one side of the guide frame (53).
3. The fire-fighting smoke exhaust composite duct as described in claim 1, characterized in that: The inner wall of the guide rail (52) is fitted with a connecting frame (13) for limiting the guide frame (53), and the outer side of the connecting frame (13) penetrates the inner wall of the guide frame (53) and is fitted with the inner wall of the mounting frame (51).
4. The fire-fighting smoke exhaust composite duct as described in claim 1, characterized in that: The top of the limiting frame (7) is fixed with a connecting seat (14), and the inner wall of the connecting seat (14) is slidably connected with a limiting plate (15) for limiting the fixed block (6), and the outer side of the limiting plate (15) is inserted into the inner wall of the fixed block (6).
5. The fire-fighting smoke exhaust composite duct as described in claim 4, characterized in that: The top of the limiting plate (15) is fixed with a second push block (16), and the bottom of the second push block (16) is fixedly connected to the top of the limiting plate (15). The inner wall of the connecting seat (14) is fixed with a limiting rod (17), and the outer side of the limiting rod (17) is slidably connected to the inner wall of the limiting plate (15).
6. The fire-fighting smoke exhaust composite duct as described in claim 5, characterized in that: A second spring (18) is provided on the outside of the limiting rod (17), and the two ends of the second spring (18) are fixedly connected to the inner wall of the connecting seat (14) and one side of the limiting plate (15), respectively.
7. The fire-fighting smoke exhaust composite duct as described in claim 1, characterized in that: The inner wall of the duct body (1) is provided with an anti-corrosion coating (19), and the interior of the anti-corrosion coating (19) is provided with sound insulation cotton (20).