A powerful smoke exhaust fan

Abstract

This invention discloses a powerful smoke exhaust fan, relating to the technical field of smoke exhaust equipment. The powerful smoke exhaust fan includes a movable frame, a triangular stair-climbing wheel assembly, a battery box, hooks, a movable fan unit, and an inverted U-shaped telescopic mounting frame. The triangular stair-climbing wheel assembly is installed at the bottom of the movable frame. The battery box is screwed to a horizontal support rod at the bottom of the movable frame. A hook is welded to the middle of the vertical support rod of the movable frame, and the movable fan unit is hung on the hook. The inverted U-shaped telescopic mounting frame is welded to the lower part of the fan housing. This invention solves the problem of difficult transportation by incorporating the triangular stair-climbing wheel assembly. The movable fan unit is hung on the movable frame via hooks, facilitating quick assembly, disassembly, use, and replacement. Combined with the inverted U-shaped telescopic mounting frame, it can be stably erected on high-level structures, achieving high-level smoke exhaust operations and significantly improving smoke exhaust efficiency. The brushless motor ensures continuous and stable operation in confined spaces and oxygen-deficient environments.

Description

Technical Field

[0001] This invention relates to the field of smoke extraction equipment technology, and specifically to a powerful smoke extraction machine. Background Technology

[0002] The smoke extraction machines currently used in rescue operations require dedicated personnel to monitor them throughout the entire process. The equipment is also susceptible to directional deviation due to the thrust of the smoke, making it unable to operate stably on its own. This not only consumes already strained rescue manpower but also disperses frontline rescue forces, reducing the overall efficiency of emergency response.

[0003] Fire smoke tends to rise and accumulate in the upper floors of buildings, but motorized smoke exhaust fans are bulky and difficult to install and fix in high places such as windowsills and balconies. Due to the weight of the equipment and the limited operating space, it is difficult to implement precise and effective smoke extraction intervention in the core smoke areas on the upper floors.

[0004] In dense, confined environments with extremely low oxygen levels, traditional internal combustion engine smoke exhaust systems are prone to frequent flameouts due to insufficient oxygen supply during combustion. This forces repeated interruptions to smoke extraction operations, which not only fails to quickly disperse the smoke but also severely slows down the on-site smoke extraction progress and rescue efforts, delaying rescue opportunities.

[0005] Pain points of existing equipment:

[0006] Bulky and inconvenient to move: Although it supports both backpack and hand-carry modes, the overall weight is relatively large. In the complex terrain and emergency environment of a fire scene, moving the equipment will quickly deplete the firefighters' physical strength and significantly reduce the efficiency of continuous combat and rescue.

[0007] Limited effectiveness of ground-based smoke extraction: Smoke has the physical property of rising upwards. If the equipment is only placed on the ground, it is difficult to effectively extract and replace the high-temperature and toxic smoke in the upper part of the space, resulting in incomplete smoke extraction and failure to quickly improve visibility and environment at the fire scene.

[0008] High-level installation is difficult: Due to the weight and size of the equipment, when facing the need for high-level smoke exhaust such as windowsills, balconies, and roofs, not only is vertical transportation extremely difficult, but it is also difficult to stably install and fix it at complex high places that are not flat, making it impossible to achieve efficient high-level smoke exhaust operations. Summary of the Invention

[0009] The purpose of this invention is to provide a powerful smoke exhaust fan that solves the problems of existing smoke exhaust fans used in rescue operations being bulky and inconvenient to move, having limited ground smoke exhaust effect, being difficult to set up at high positions, and being prone to frequent flameouts due to insufficient oxygen supply during combustion in traditional internal combustion motorized smoke exhaust fans.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A powerful smoke exhaust fan includes a movable frame, triangular stair-climbing wheels, a battery box, hooks, a movable fan unit, and an inverted U-shaped telescopic mounting bracket. A set of triangular stair-climbing wheels is installed at the bottom of the movable frame. The battery box is screwed to a horizontal support rod at the bottom of the movable frame. The hook is welded to the middle of the vertical support rod of the movable frame. The movable fan unit is hung on the hook and electrically connected to the battery box. The inverted U-shaped telescopic mounting bracket is welded to the lower part of the movable fan unit.

[0012] The inverted U-shaped telescopic fixing frame includes an L-shaped fixing rod, an L-shaped telescopic rod, a threaded hole, and a locking bolt. The L-shaped fixing rod is welded to the bottom of the fan housing. One end of the L-shaped telescopic rod is slidably sleeved inside the L-shaped fixing rod. The L-shaped fixing rod at the connection between the L-shaped fixing rod and the L-shaped telescopic rod is provided with the threaded hole, and the locking bolt is screwed into the threaded hole.

[0013] Furthermore, the movable fan unit includes a fan housing, a handle, and a brushless motor. The handle is provided on both sides of the upper part of the fan housing. The brushless motor is screwed and fixed inside the fan housing and is electrically connected to the battery box.

[0014] Furthermore, the battery box includes a box body and a battery pack, the battery pack being placed inside the box body, the box body being a cuboid with an opening at the top, and the internal space of the box body matching the external dimensions of the battery pack.

[0015] Furthermore, the triangular stair-climbing wheel set includes triangular wheels and a connecting shaft, with the two triangular wheels rotatably connected to both sides of the bottom of the movable frame via the middle connecting shaft.

[0016] The beneficial effects of this invention are as follows: By incorporating a triangular stair-climbing wheel assembly, the device achieves excellent maneuverability in complex terrains such as stairs and steps, effectively solving the problem of difficult transportation of traditional smoke exhaust fans in multi-story buildings and underground spaces. Simultaneously, the movable fan unit is hung on a movable frame via hooks, facilitating quick disassembly, use, and replacement. Combined with an inverted U-shaped telescopic fixing frame, the fan can be stably mounted on high structures such as windowsills, balconies, and stair railings, enabling high-level smoke exhaust operations and significantly improving smoke exhaust efficiency. Furthermore, the brushless motor drive powered by a battery box completely avoids the frequent flameout defects of traditional internal combustion smoke exhaust fans due to insufficient oxygen supply during combustion, ensuring continuous and stable operation of the equipment in confined spaces and oxygen-deficient environments, greatly improving the reliability and safety of fire smoke exhaust operations.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure from a top view angle, as shown in this invention.

[0020] Figure 3 This is a schematic diagram of the structure of the uninstalled components 5 and 6 shown in this invention.

[0021] Figure 4 This is a schematic diagram of the structure of components 5 and 6 as shown in the present invention when they are installed on a window.

[0022] Explanation of reference numerals in the attached diagram: 1. Movable frame; 2. Triangular stair-climbing wheel set; 3. Battery box; 4. Hook; 5. Movable fan unit; 6. Inverted U-shaped telescopic fixing frame; 20. Triangular wheel; 21. Connecting shaft; 30. Box body; 31. Battery pack; 50. Fan housing; 51. Handle; 52. Brushless motor; 60. L-shaped fixing rod; 61. L-shaped telescopic rod; 62. Threaded hole; 63. Locking bolt. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Please see Figure 1 A preferred embodiment of this application shows a powerful smoke exhaust fan, comprising a movable frame 1, a set of triangular stair-climbing wheels 2, a battery box 3, hooks 4, a movable fan unit 5, and an inverted U-shaped telescopic fixing frame 6. A set of triangular stair-climbing wheels 2 is installed at the bottom of the movable frame 1. The battery box 3 is screwed and fixed to the horizontal support rod at the bottom of the movable frame 1. A hook 4 is welded and fixed to the middle of the vertical support rod of the movable frame 1. The movable fan unit 5 is hung on the hook 4 and is electrically connected to the battery box 3. The inverted U-shaped telescopic fixing frame 6 is welded and fixed to the lower part of the movable fan unit 5.

[0028] The inverted U-shaped telescopic fixing frame 6 includes an L-shaped fixing rod 60, an L-shaped telescopic rod 61, a threaded hole 62, and a locking bolt 63. The L-shaped fixing rod 60 is welded to the bottom of the fan housing 50. One end of the L-shaped telescopic rod 61 is slidably sleeved inside the L-shaped fixing rod 60. The L-shaped fixing rod 60 at the connection between the L-shaped fixing rod 60 and the L-shaped telescopic rod 61 is provided with a threaded hole 62, and a locking bolt 63 is screwed into the threaded hole 62.

[0029] The portable fan unit 5 includes a fan housing 50, a handle 51, and a brushless motor 52. The upper two sides of the fan housing 50 are provided with handles 51. The brushless motor 52 is screwed and fixed inside the fan housing 50 and is electrically connected to the battery box 3.

[0030] The battery box 3 includes a box body 30 and a battery pack 31. The battery pack 31 is placed inside the box body 30. The box body 30 is a cuboid with an opening at the top, and the internal space of the box body 30 matches the external dimensions of the battery pack 31.

[0031] The triangular stair-climbing wheel set 2 includes triangular wheels 20 and connecting shafts 21. The two triangular wheels 20 are rotatably connected to the two sides of the bottom of the movable frame 1 through the middle connecting shaft 21.

[0032] Separate design: The movable fan unit 5 is hung on the hook 4 and moves with the movable frame 1. When in use, the movable fan unit 5 is lifted up, thus separating the movable fan unit 5 from the movable frame 1.

[0033] The movable fan unit 5 can be flexibly fixed to the exterior windows, balconies or any smoke exhaust outlets of a building by means of L-shaped fixing rods 60 and L-shaped telescopic rods 61, and the position can be locked simultaneously by locking bolts 63. It can adapt to the smoke exhaust needs of different building structures, is not limited by the installation location, and achieves precise deployment.

[0034] The portable wind turbine unit 5 features a lightweight design, making the entire unit lightweight and easy for a single person to move, climb, and secure, without the need for large auxiliary equipment, thus greatly improving emergency response speed.

[0035] Triangular Stair Climbing Wheel Set 2: Adopting a three-wheel design structure, it breaks through the mobility limitations of traditional equipment, is designed for complex rescue scenarios, and redefines the mobility standard of fire-fighting equipment.

[0036] No multiple people are needed; it can be easily operated by a single person. Whether it's a narrow residential corridor, a rugged outdoor mountain road, or a disaster site filled with rubble, it can be smoothly dragged through, solving terrain obstacles that traditional equipment struggles to overcome.

[0037] This technology completely solves the industry pain points of existing electric smoke exhaust fans being "heavy, large, and difficult to move." In areas such as old residential areas and pedestrian streets where large vehicles cannot enter, this equipment can quickly reach the scene, becoming a key tool for rescue operations in confined spaces.

[0038] The three-wheel drive structure of the Triangle Climbing Wheel Set 2 significantly reduces ground friction resistance, making movement smoother and less strenuous compared to traditional fixed smoke exhaust fans. It truly allows equipment to move with the personnel, eliminating the need for firefighters to expend extra energy carrying equipment when arriving at the scene. This effectively saves firefighters' physical exertion, allowing them to dedicate more energy and time to core firefighting, smoke extraction, and personnel search and rescue tasks. It also shortens equipment deployment time, significantly improving the speed and success rate of emergency response at fire scenes.

[0039] Battery pack 31: A display screen is embedded on the upper surface of the battery pack 31. A control button is located on the right side of the display screen. The battery pack 31 has a built-in control chipset with a wireless module. The control button is used to adjust the output power. The display screen displays data such as output power, remaining power, and cell temperature. The wireless module can connect to a mobile APP to display all information data synchronously and can also be operated wirelessly.

[0040] Battery pack 31 uses dedicated batteries with an ultra-wide temperature range of -20°C to 60°C, making it more adaptable to a wider range of environments than traditional smoke extraction equipment. It can work stably in both extremely cold and high-temperature fire scenes. Each battery has a capacity of 50Ah, and the two batteries connected in parallel have a capacity of 100Ah. The maximum discharge current is 72A, and it supports 10A fast charging. The dual-battery design fully guarantees continuous smoke extraction operations in fire scenes for extended periods.

[0041] This equipment, when used in conjunction with a smoke curtain, can effectively control smoke and prevent it from spreading into the personnel transport vehicle during the smoke exhaust process.

[0042] Promotional value

[0043] First, it is highly practical and applicable to fires in factories, warehouses, and high-rise buildings. It can be put into use immediately upon arrival at the site without any additional modifications.

[0044] Secondly, the operation is simple, and a single person can complete the entire process of moving, setting up, starting and adjusting the speed, reducing manpower consumption and improving processing efficiency.

[0045] Thirdly, it offers high safety, allowing for high-level operations and reducing firefighters' exposure to hazardous areas with dense smoke. Combined with a multi-layered battery protection system, it ensures personnel safety.

[0046] Fourth, it has a wide range of applications. In addition to fire smoke extraction, it can also be used for ventilation in tunnels and underground garages, hazardous gas removal in factories, and dust suppression in venues, showing a broad application prospect.

[0047] The simulated smoke extraction environment has an area of ​​approximately 10 square meters.

[0048] The interior height is 5 meters. Smoke accumulates at the top of the room, making smoke extraction difficult. In a closed, poorly ventilated environment, the smoke extraction fan can reduce the visibility of indoor smoke to a level that is clearly visible to the naked eye in about 5 minutes, facilitating firefighting and rescue operations.

[0049] In summary, this invention provides a powerful smoke exhaust fan. By incorporating triangular stair-climbing wheels, the device exhibits excellent maneuverability in complex terrains such as stairs and steps, effectively solving the problem of difficult transport of traditional smoke exhaust fans in multi-story buildings and underground spaces. Simultaneously, the movable fan unit is hooked onto a movable frame for easy and quick disassembly, use, and replacement. Combined with an inverted U-shaped telescopic mounting bracket, the fan can be stably mounted on high structures such as windowsills, balconies, and stair railings, enabling high-level smoke exhaust operations and significantly improving smoke extraction efficiency. Furthermore, the brushless motor drive powered by a battery box completely avoids the frequent flameout defects of traditional internal combustion smoke exhaust fans due to insufficient oxygen supply during combustion, ensuring continuous and stable operation of the equipment in confined spaces and oxygen-deficient environments, greatly improving the reliability and safety of fire smoke extraction operations.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A powerful smoke exhaust fan, characterized in that, The device includes a movable frame (1), a triangular stair-climbing wheel set (2), a battery box (3), a hook (4), a movable fan unit (5), and an inverted U-shaped telescopic fixing frame (6). The movable frame (1) has a set of triangular stair-climbing wheels (2) installed at its bottom. The battery box (3) is screwed and fixed to the horizontal support rod at the bottom of the movable frame (1). The hook (4) is welded and fixed to the middle of the vertical support rod of the movable frame (1). The movable fan unit (5) is hung on the hook (4) and electrically connected to the battery box (3). The inverted U-shaped telescopic fixing frame (6) is welded and fixed to the lower part of the movable fan unit (5). The inverted U-shaped telescopic fixing frame (6) includes an L-shaped fixing rod (60), an L-shaped telescopic rod (61), a threaded hole (62), and a locking bolt (63). The L-shaped fixing rod (60) is welded to the bottom of the fan housing (50). One end of the L-shaped telescopic rod (61) is slidably sleeved inside the L-shaped fixing rod (60). The L-shaped fixing rod (60) at the connection between the L-shaped fixing rod (60) and the L-shaped telescopic rod (61) is provided with the threaded hole (62), and the locking bolt (63) is screwed into the threaded hole (62).

2. The powerful smoke exhaust fan as described in claim 1, characterized in that, The movable fan unit (5) includes a fan housing (50), a handle (51), and a brushless motor (52). The handle (51) is provided on both sides of the upper part of the fan housing (50). The brushless motor (52) is screwed and fixed inside the fan housing (50). The brushless motor (52) is electrically connected to the battery box (3).

3. A powerful smoke exhaust fan as described in claim 1, characterized in that, The battery box (3) includes a box body (30) and a battery pack (31). The battery pack (31) is placed inside the box body (30). The box body (30) is a cuboid with an opening at the top. The internal space of the box body (30) matches the external dimensions of the battery pack (31).

4. A powerful smoke exhaust fan as described in claim 1, characterized in that, The triangular stair-climbing wheel set (2) includes triangular wheels (20) and connecting shafts (21). The two triangular wheels (20) are rotatably connected to the two sides of the bottom of the movable frame (1) through the middle connecting shaft (21).

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