Building fire-fighting ventilation device

By introducing air filtration and airflow adjustment structures into building fire ventilation systems, the problem of smoke spread has been solved, achieving effective filtration and precise emission, and improving the safety and efficiency of the ventilation system.

CN224261875UActive Publication Date: 2026-05-19SHANDONG GUOJIN KUNSHENG CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG GUOJIN KUNSHENG CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing building fire ventilation systems lack air filtration and cleaning structures, leading to the spread of toxic and harmful fumes, reducing visibility, increasing the risk of inhalation, and potentially clogging equipment, affecting ventilation efficiency and lifespan.

Method used

The design includes an air filtration and cleaning structure and an airflow adjustment structure. The air filtration and cleaning structure automatically cleans itself using a filter plate and a drive motor, while the airflow adjustment structure adjusts the airflow direction using a hydraulic rod and an adjusting gear. These structures are used for filtering and exhausting flue gas, respectively.

Benefits of technology

It effectively filters smoke and dust, improves air quality, enhances the adaptability of the equipment, avoids disordered airflow, improves ventilation efficiency and precisely controls the ventilation range, and enhances the fire ventilation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a building fire-fighting ventilation device, which relates to the technical field of fire-fighting ventilation, and comprises a fire-fighting ventilation frame, an air filtering and cleaning structure arranged on the inner wall of the fire-fighting ventilation frame and used for filtering airflow with smoke generated when a building is on fire, and a wind direction adjusting structure arranged on the inner wall of the fire-fighting ventilation frame and used for adjusting the wind direction of the air filtering and cleaning structure. The building fire-fighting ventilation device comprises a fire-fighting ventilation frame and an air filtering and cleaning structure, the air filtering and cleaning structure is arranged on the outer wall of the fire-fighting ventilation frame and used for assisting in discharging filtered air flow, and the air filtering and cleaning structure comprises a sweeping connecting assembly which is arranged on the inner wall of the fire-fighting ventilation frame. Harmful substances such as smoke dust are removed, and the air quality is improved. The driving motor drives the threaded rod to enable the cleaning plate to move, the air filtering plate is automatically cleaned, the filtering performance is kept, the air filtering plate is slidably connected with the connecting frame through the sliding groove, the sealing frame is connected with the fixing groove through the bolt, and mounting, dismounting and maintenance are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection and ventilation technology, specifically a building fire protection and ventilation device. Background Technology

[0002] Building fire ventilation systems are devices used for ventilation and smoke extraction within buildings, typically to ensure the safety of people and property during a fire. These systems include ventilation systems, smoke extraction systems, and smoke exhaust fans.

[0003] Equipment and facilities such as machines and ventilation ducts.

[0004] A building fire ventilation device, authorized by announcement number CN221897945U, belongs to the technical field of fire ventilation devices. It includes a pipe, a flexible hose at the front of the pipe, a ventilation opening at the front of the flexible hose, fixed posts at both ends of the ventilation opening, threaded posts on the sidewalls of the fixed posts, a sliding track on the outside of the threaded posts, and a locking plate on the sidewall of the sliding track. This utility model achieves convenient adjustment of the height and angle of the ventilation opening by utilizing the sliding up and down ventilation opening, combined with the rotation of a rotating rod and a connecting rod, thereby increasing the convenience of installation and use of the building fire ventilation device. By setting a bottom plate that snaps into the bottom of the pipe and locking it with the vertical post and locking parts, it enables quick installation and disassembly of the pipe, facilitating disassembly, inspection, and maintenance without the need to find tools to tighten bolts, thus providing convenience.

[0005] As shown in the above description, while existing building fire ventilation systems offer convenience by facilitating the disassembly, inspection, and maintenance of ductwork without the need for tools to tighten bolts, they lack a filtration and cleaning structure. This prevents the filtering of smoke generated during a fire, allowing toxic and harmful fumes to spread, reducing visibility, increasing the risk of inhaling toxic gases, and impacting escape safety. Furthermore, unfiltered airflow contains a large amount of impurities, which may clog other parts of the equipment, leading to operational obstruction, equipment damage, and affecting the efficiency and lifespan of the ventilation system. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a building fire ventilation device, which solves the problems of the existing technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a building fire ventilation device, including a fire ventilation frame, and further comprising:

[0008] An air filtration and cleaning structure is installed on the inner wall of the fire ventilation frame to filter the airflow containing smoke generated when a building catches fire.

[0009] The airflow adjustment structure is installed on the outer wall of the fire ventilation frame to assist in the discharge of filtered airflow;

[0010] The air filtration and cleaning structure includes a cleaning connection assembly, which is disposed on the inner wall of the fire ventilation frame. The inner wall of the cleaning connection assembly is provided with an air filter plate. A sealing frame is disposed above the cleaning connection assembly. A sealing plate is fixedly installed on the inner wall of the sealing frame. A fixing groove is formed on the outer wall of the sealing frame. A sliding groove is formed on the outer wall of the air filter plate.

[0011] Preferably, the cleaning connection assembly includes a connecting frame, which is fixedly installed on the inner wall of the fire ventilation frame. The outer wall of the connecting frame has a connecting groove. A threaded rod is rotatably connected to the outer wall of the connecting frame. A cleaning plate is threadedly connected to the outer wall of the threaded rod. A drive motor is fixedly installed on the outer wall of the connecting frame. The output end of the drive motor is connected to the threaded rod. A limit slide rod is fixedly installed on the outer wall of the connecting frame. The outer wall of the limit slide rod is slidably connected to the cleaning plate for limiting the position of the cleaning plate.

[0012] Preferably, the wind direction adjustment structure includes an adjustment frame, which is fixedly installed on the outer wall of the fire ventilation frame. An adjustment gear is rotatably connected to the inner wall of the adjustment frame. A guide plate is fixedly connected to one end of the adjustment gear. The outer wall of the adjustment gear meshes with the toothed plate. A slide rail is fixedly installed on the inner wall of the adjustment frame. The outer wall of the slide rail is slidably connected to the toothed plate. A hydraulic rod is fixedly installed on the outer wall of the adjustment frame. One end of the hydraulic rod is connected and fixed to the toothed plate.

[0013] Preferably, one end of the fire ventilation frame is fixedly connected to a mounting plate, and the outer wall of the mounting plate is provided with screw holes. The mounting plate can be used to install the equipment in the building as a whole through bolts and screw holes.

[0014] Preferably, the outer wall of the fire ventilation frame is provided with an installation groove for connecting the frame installation, and the outer wall of the fire ventilation frame is provided with an air guide groove for guiding airflow into the adjustment frame in the air direction adjustment structure.

[0015] Preferably, the connecting frame is slidably connected to the air filter plate via a sliding groove, and the air filter plate is sealed and fixed in the connecting frame by a sealing plate connected to the outer wall of the sealing frame. The sealing frame is fixed to the outer wall of the fire ventilation frame by bolts and a fixing groove.

[0016] This utility model provides a building fire ventilation device. Compared with the prior art, it has the following advantages:

[0017] 1. The building's fire ventilation system is equipped with a filter cleaning structure, which can filter fire smoke, remove harmful substances such as smoke and dust, and improve air quality. The drive motor drives the threaded rod to move the cleaning plate, automatically cleaning the filter plate and maintaining its filtering performance. The filter plate is slidably connected to the connecting frame through a sliding groove, and the cover is connected to the fixing groove by bolts, which facilitates installation, disassembly, and maintenance.

[0018] 2. The building's fire ventilation system is equipped with an airflow adjustment structure. A hydraulic rod pushes a toothed plate along a slide rail, which meshes with an adjusting gear to rotate, causing a guide plate to change the direction of the filtered airflow. This enhances the system's adaptability to different environments, prevents disordered airflow discharge to improve discharge efficiency, and allows for precise control of the ventilation range based on fire conditions, thus improving fire ventilation effectiveness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the air filtration and cleaning structure of this utility model;

[0022] Figure 4 This is an exploded view of the air filtration and cleaning structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the cleaning connection assembly of this utility model;

[0024] Figure 6 This is a schematic diagram of the wind direction adjustment structure of this utility model.

[0025] In the diagram: 1. Mounting plate; 2. Fire ventilation frame; 3. Air direction adjustment structure; 31. Adjustment frame; 32. Adjustment gear; 33. Gear plate; 34. Slide rail; 35. Guide plate; 36. Hydraulic rod; 4. Air filter cleaning structure; 41. Cleaning connection assembly; 411. Connection frame; 412. Connection groove; 413. Threaded rod; 414. Drive motor; 415. Cleaning plate; 416. Limiting slide rod; 42. Air filter plate; 43. Sealing frame; 44. Sealing plate; 45. Fixing groove; 46. Slide groove; 5. Screw hole; 6. Mounting groove; 7. Air guide groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figures 1-6 This utility model provides the following two technical solutions:

[0028] First embodiment: A building fire ventilation device, including a fire ventilation frame 2, and further comprising:

[0029] Air filtration and cleaning structure 4 is installed on the inner wall of fire ventilation frame 2 and is used to filter the airflow containing smoke generated when the building is on fire.

[0030] The airflow adjustment structure 3 is installed on the outer wall of the fire ventilation frame 2 to assist in the discharge of filtered airflow;

[0031] One end of the fire ventilation frame 2 is fixedly connected to the mounting plate 1. The outer wall of the mounting plate 1 is provided with screw holes 5. The mounting plate 1 can be used to install the equipment in the building by means of bolts and screw holes 5. The outer wall of the fire ventilation frame 2 is provided with the mounting groove 6 for connecting the frame 411. The outer wall of the fire ventilation frame 2 is provided with the air guide groove 7 for guiding the airflow into the regulating frame 31 in the air direction regulating structure 3.

[0032] The air filtration and cleaning structure 4 includes a cleaning connection assembly 41, which is disposed on the inner wall of the fire ventilation frame 2. The inner wall of the cleaning connection assembly 41 is provided with an air filter plate 42. A cover frame 43 is disposed above the cleaning connection assembly 41. A cover plate 44 is fixedly installed on the inner wall of the cover frame 43. The outer wall of the cover frame 43 has a fixing groove 45. The outer wall of the air filter plate 42 has a sliding groove 46.

[0033] The cleaning connection assembly 41 includes a connecting frame 411, which is fixedly installed on the inner wall of the fire ventilation frame 2. The outer wall of the connecting frame 411 has a connecting groove 412. A threaded rod 413 is rotatably connected to the outer wall of the connecting frame 411. A cleaning plate 415 is threadedly connected to the outer wall of the threaded rod 413. A drive motor 414 is fixedly installed on the outer wall of the connecting frame 411. The output end of the drive motor 414 is connected to the threaded rod 413. A limiting slide rod 416 is fixedly installed on the outer wall of the connecting frame 411. The outer wall of the limiting slide rod 416 is slidably connected to the cleaning plate 415 for limiting the cleaning plate 415.

[0034] The connecting frame 411 is slidably connected to the air filter plate 42 through the sliding groove 46. The air filter plate 42 is sealed and fixed in the connecting frame 411 through the sealing plate 44 connected to the outer wall of the sealing frame 43. The sealing frame 43 is fixed to the outer wall of the fire ventilation frame 2 by bolts and fixing groove 45.

[0035] The building's fire ventilation system is equipped with a filter cleaning structure 4, which filters fire smoke, removes harmful substances such as smoke and dust, and improves air quality. A drive motor 414 drives a threaded rod 413 to move a cleaning plate 415, automatically cleaning the filter plate 42 and maintaining its filtering performance. The filter plate 42 is slidably connected to a connecting frame 411 via a sliding groove 46. The sealing frame 43 is bolted to a fixing groove 45, facilitating installation, disassembly, and maintenance.

[0036] The second embodiment differs from the first embodiment in that: the wind direction adjustment structure 3 includes an adjustment frame 31, which is fixedly installed on the outer wall of the fire ventilation frame 2. An adjustment gear 32 is rotatably connected to the inner wall of the adjustment frame 31. A guide plate 35 is fixedly connected to one end of the adjustment gear 32. The outer wall of the adjustment gear 32 meshes with the toothed plate 33. A slide rail 34 is fixedly installed on the inner wall of the adjustment frame 31. The outer wall of the slide rail 34 is slidably connected to the toothed plate 33. A hydraulic rod 36 is fixedly installed on the outer wall of the adjustment frame 31. One end of the hydraulic rod 36 is connected and fixed to the toothed plate 33.

[0037] The building's fire ventilation system is equipped with an airflow adjustment structure 3. A hydraulic rod 36 pushes a toothed plate 33 to slide on a slide rail 34, engaging with an adjusting gear 32 to rotate it. This, in turn, drives a guide plate 35 to change the direction of the filtered airflow. This enhances the system's adaptability to different environments, prevents disordered airflow discharge to improve discharge efficiency, and allows for precise control of the ventilation range based on fire conditions, thereby improving fire ventilation effectiveness.

[0038] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0039] When the building's fire ventilation system is in operation, the mounting plate 1 is installed in the building via bolts and screw holes 5. The mounting groove 6 of the fire ventilation frame 2 is used to install the connecting frame 411, and the air guide duct 7 guides the airflow to the air direction adjustment structure 3. In the air filtration and cleaning structure 4, the drive motor 414 drives the threaded rod 413 to rotate, causing the cleaning plate 415 to move along the threaded rod 413 under the limit of the limiting slide rod 416, cleaning the air filter plate 42. The air filter plate 42 is slidably connected to the connecting frame 411 via the slide groove 46. The sealing frame 43 is connected to the fixing groove 45 via bolts, and the sealing plate 44 on its inner wall seals and fixes the air filter plate 42 to filter the smoke-laden airflow generated when the building catches fire. In the air direction adjustment structure 3, the hydraulic rod 36 pushes the toothed plate 33 to slide on the slide rail 34. The toothed plate 33 meshes with the adjusting gear 32, driving the adjusting gear 32 to rotate, thereby causing the guide plate 35 to rotate, realizing the auxiliary discharge direction adjustment of the filtered airflow.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A building fire ventilation device, comprising a fire ventilation frame (2), characterized in that, Also includes: Air filtration and cleaning structure (4), which is installed on the inner wall of the fire ventilation frame (2) and is used to filter the airflow containing smoke generated when the building is on fire; The wind direction adjustment structure (3) is installed on the outer wall of the fire ventilation frame (2) to assist in the discharge of filtered airflow; The air filtration and cleaning structure (4) includes a cleaning connection assembly (41), which is disposed on the inner wall of the fire ventilation frame (2). The inner wall of the cleaning connection assembly (41) is provided with an air filter plate (42). A cover frame (43) is disposed above the cleaning connection assembly (41). A cover plate (44) is fixedly installed on the inner wall of the cover frame (43). A fixing groove (45) is formed on the outer wall of the cover frame (43). A sliding groove (46) is formed on the outer wall of the air filter plate (42).

2. A building fire ventilation device according to claim 1, characterized in that: The cleaning connection assembly (41) includes a connecting frame (411), which is fixedly installed on the inner wall of the fire ventilation frame (2). The outer wall of the connecting frame (411) is provided with a connecting groove (412). A threaded rod (413) is rotatably connected to the outer wall of the connecting frame (411). A cleaning plate (415) is threadedly connected to the outer wall of the threaded rod (413). A drive motor (414) is fixedly installed on the outer wall of the connecting frame (411). The output end of the drive motor (414) is connected to the threaded rod (413). A limiting slide rod (416) is fixedly installed on the outer wall of the connecting frame (411). The outer wall of the limiting slide rod (416) is slidably connected to the cleaning plate (415) for limiting the cleaning plate (415).

3. A building fire ventilation device according to claim 1, characterized in that: The wind direction adjustment structure (3) includes an adjustment frame (31), which is fixedly installed on the outer wall of the fire ventilation frame (2). An adjustment gear (32) is rotatably connected to the inner wall of the adjustment frame (31). A guide plate (35) is fixedly connected to one end of the adjustment gear (32). The outer wall of the adjustment gear (32) meshes with a toothed plate (33). A slide rail (34) is fixedly installed on the inner wall of the adjustment frame (31). The outer wall of the slide rail (34) is slidably connected to the toothed plate (33). A hydraulic rod (36) is fixedly installed on the outer wall of the adjustment frame (31). One end of the hydraulic rod (36) is connected and fixed to the toothed plate (33).

4. A building fire ventilation device according to claim 1, characterized in that: One end of the fire ventilation frame (2) is fixedly connected to an installation plate (1). The outer wall of the installation plate (1) is provided with screw holes (5). The installation plate (1) can be used to install the equipment in the building as a whole through bolts and screw holes (5).

5. A building fire ventilation device according to claim 1, characterized in that: The outer wall of the fire ventilation frame (2) is provided with an installation groove (6) for connecting the frame (411) for installation. The outer wall of the fire ventilation frame (2) is provided with an air guide groove (7) for guiding the airflow into the regulating frame (31) in the air direction regulating structure (3).

6. A building fire ventilation device according to claim 2, characterized in that: The connecting frame (411) is slidably connected to the air filter plate (42) through the sliding groove (46). The connecting frame (411) seals and fixes the air filter plate (42) in the connecting frame (411) through the sealing plate (44) connected to the outer wall of the sealing frame (43). The sealing frame (43) is connected and fixed to the outer wall of the fire ventilation frame (2) by bolts and fixing groove (45).