Fire-fighting smoke exhaust auxiliary device

Abstract

The utility model relates to the technical field of fire protection and smoke exhaust, and discloses a fire protection and smoke exhaust auxiliary device which comprises a smoke exhaust pipeline, an exhaust fan is fixedly connected in the smoke exhaust pipeline, filter plates are arranged on the two sides of the exhaust fan, the filter plates are fixedly connected in the smoke exhaust pipeline, and rotating shafts are symmetrically connected to the two sides of the smoke exhaust pipeline in a penetrating and rotating mode. The outer surfaces of the rotating shafts are fixedly connected with drainage plates, sliding grooves are symmetrically formed in the upper end face of the smoke exhaust pipeline, the rotating shafts can be driven to rotate on the smoke exhaust pipeline, the drainage plates are driven to rotate to be opened, the distance between the two drainage plates is enlarged, and therefore the smoke inlet and the smoke outlet are enlarged, and the operation state of the exhaust fan does not need to be changed; the noise generated by the exhaust fan is reduced, a quieter environment is provided, personnel evacuation and fire fighting work are facilitated, hearing health of workers is protected, direct intervention on the exhaust fan is reduced, abrasion of internal parts of the exhaust fan is reduced, and therefore the service life of the exhaust fan is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fire smoke extraction technology, specifically a fire smoke extraction auxiliary device. Background Technology

[0002] Fire smoke extraction auxiliary devices play a crucial role in fire protection systems. They can efficiently remove smoke generated at fire scenes, paving an unobstructed path for the safe evacuation of personnel and the effective firefighting efforts of firefighters, thus ensuring the smooth progress of personnel evacuation and firefighting.

[0003] Existing fire smoke extraction auxiliary devices rely primarily on fans as their core component to continuously extract smoke from indoor areas and discharge it outdoors. To further improve smoke extraction efficiency, this is often achieved by adjusting the fan speed. However, as the fan speed increases, the noise generated also increases. This noise not only affects the hearing of staff, impacting their hearing health and hindering communication among staff, thus affecting the implementation of subsequent plans, but also causes greater wear and tear on the internal components of the fan during high-speed operation, shortening its lifespan and requiring more frequent maintenance and replacement.

[0004] Therefore, we propose a fire smoke extraction auxiliary device to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a fire-fighting smoke extraction auxiliary device, which solves the problems mentioned in the background section.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A fire-fighting smoke exhaust auxiliary device includes a smoke exhaust duct, an exhaust fan fixedly connected inside the smoke exhaust duct, filter plates on both sides of the exhaust fan, the filter plates fixedly connected inside the smoke exhaust duct, a rotating shaft symmetrically rotatably connected through both sides of the smoke exhaust duct, a guide plate fixedly connected to the outer surface of the rotating shaft, a sliding groove symmetrically opened on the upper end face of the smoke exhaust duct, and a moving groove opened at the center of the upper end face of the smoke exhaust duct.

[0008] As a further embodiment of this utility model: a fixing plate is fixedly connected to the upper end of each rotating shaft, and a lever is fixedly connected to the lower end face of each fixing plate away from the rotating shaft. A movable frame is provided below each lever on the same side, and the movable frames are slidably connected in the sliding groove. A through groove is symmetrically opened on the upper end face of each movable frame, and the lever is slidably connected in the through groove.

[0009] As a further embodiment of this utility model: a movable plate is slidably connected in the movable groove, and a connecting plate is symmetrically and rotatably connected to the upper surface of the movable plate, with the end of the connecting plate away from the movable plate rotatably connected to the upper surface of the movable frame.

[0010] As a further embodiment of this utility model: a threaded rod is threadedly connected through the movable plate, and a handle is fixedly connected to the upper end face of the threaded rod.

[0011] As a further embodiment of this utility model: threaded holes are provided at equal intervals at the bottom of the movable groove, and each threaded hole is threadedly connected to the threaded rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. Through the installation of movable plates, connecting plates, movable frames, through slots, levers, and fixed plates, the rotating shaft can be driven to rotate on the smoke exhaust duct, causing the diversion plates to rotate and open, expanding the distance between the two diversion plates, thereby increasing the size of the smoke inlet and outlet. This not only eliminates the need to change the operating status of the exhaust fan, reducing the noise generated by the exhaust fan and providing a quieter environment, which is beneficial for personnel evacuation and fire fighting, and protecting the hearing health of workers, but also reduces direct intervention in the exhaust fan, reduces the wear and tear on the internal parts of the exhaust fan, and thus improves the service life of the exhaust fan.

[0014] 2. By using threaded rods and threaded holes for threaded connection, the position of the movable plate is limited, which can fix the position of the diversion plate. This not only reduces the safety hazards caused by the diversion plate shaking or displacement, but also, especially in emergencies such as fires, a stable smoke exhaust system can more effectively guide the smoke out, reduce the interference of smoke with personnel and fire fighting work, and improve safety. Moreover, the stable position of the diversion plate helps to maintain the best smoke exhaust efficiency. When the angle and spacing of the diversion plate are precisely adjusted and fixed, it can ensure that the smoke can be smoothly discharged through the smoke inlet and smoke outlet, thereby improving smoke exhaust efficiency and reducing the residence time of smoke indoors. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram of region A in the middle;

[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram of region B in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the smoke exhaust pipe of this utility model;

[0020] In the diagram: 1. Exhaust duct; 2. Drain plate; 3. Slide groove; 4. Movable frame; 5. Connecting plate; 6. Rotating shaft; 7. Fixed plate; 8. Through groove; 9. Toggle lever; 10. Movable groove; 11. Movable plate; 12. Threaded hole; 13. Handle; 14. Threaded rod; 15. Filter plate; 16. Exhaust fan. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example:

[0023] like Figures 1-4 As shown, a fire-fighting smoke exhaust auxiliary device includes a smoke exhaust pipe 1, an exhaust fan 16 fixedly connected inside the smoke exhaust pipe 1, filter plates 15 on both sides of the exhaust fan 16, the filter plates 15 being fixedly connected inside the smoke exhaust pipe 1, a rotating shaft 6 symmetrically rotatably connected through both sides of the smoke exhaust pipe 1, a diverting plate 2 fixedly connected to the outer surface of the rotating shaft 6, a sliding groove 3 symmetrically opened on the upper end face of the smoke exhaust pipe 1, and a moving groove 10 opened at the center of the upper end face of the smoke exhaust pipe 1.

[0024] In this embodiment, as Figure 2 As shown, a fixed plate 7 is fixedly connected to the upper end of the rotating shaft 6. A lever 9 is fixedly connected to the lower end face of the fixed plate 7 away from the rotating shaft 6. A movable frame 4 is provided below the lever 9 on the same side. The movable frame 4 is slidably connected in the slide groove 3. A through groove 8 is symmetrically opened on the upper end face of the movable frame 4. The lever 9 is slidably connected in the through groove 8. When the movable frame 4 slides in the slide groove 3, it can drive the lever 9 to move synchronously through the through groove 8 opened on the upper end face, which can move one end of the fixed plate 7, so that the rotating shaft 6 connected to the fixed plate 7 can rotate.

[0025] In this embodiment, as Figure 1 and Figure 3 As shown, a movable plate 11 is slidably connected in the movable groove 10. A connecting plate 5 is symmetrically rotatably connected to the upper end of the movable plate 11. The end of the connecting plate 5 away from the movable plate 11 is rotatably connected to the upper end of the movable frame 4. When the movable plate 11 slides in the movable groove 10, the connecting plate 5 can push the movable frame 4 to slide synchronously in the sliding groove 3.

[0026] In this embodiment, as Figure 3As shown, a threaded rod 14 is threadedly connected to the movable plate 11, and a handle 13 is fixedly connected to the upper end face of the threaded rod 14. When the operator rotates the handle 13 to drive the threaded rod 14 to rotate, the threaded rod 14 can be driven to move up and down on the movable plate 11 through the threaded connection between the threaded rod 14 and the movable plate 11.

[0027] In this embodiment, as Figure 3 As shown, threaded holes 12 are equidistantly provided at the bottom of the movable groove 10. The threaded holes 12 are all threadedly connected to the threaded rod 14. When the threaded rod 14 rotates, it can descend into the threaded hole 12.

[0028] The effects achieved by this embodiment are as follows: In the prior art, in order to further improve smoke extraction efficiency, we often can only achieve this goal by adjusting the speed of the fan. However, as the speed of the fan increases, the noise generated will also increase accordingly. The noise not only affects the hearing of the staff and their hearing health, but also makes it difficult for the staff to communicate with each other and affects the implementation of subsequent plans. Moreover, when the fan is running at high speed, its internal components will be subject to greater wear, resulting in a shorter service life of the fan and requiring more frequent maintenance and replacement by the staff. Compared with the prior art, the rotating shaft 6 can be driven to rotate on the smoke extraction duct 1, thereby driving the diversion plate 2 to rotate and open, expanding the distance between the two diversion plates 2, thereby increasing the smoke inlet and smoke outlet. This not only eliminates the need to change the operating state of the exhaust fan 16, reducing the noise generated by the exhaust fan 16 and providing a quieter environment, which is conducive to personnel evacuation and fire protection work, and protecting the hearing health of the staff, but also reduces direct intervention in the exhaust fan 16, reduces the wear of the internal components of the exhaust fan 16, and thus improves the service life of the exhaust fan 16.

[0029] The overall working process and principles involved in the above embodiments are as follows:

[0030] When staff need to exhaust indoor fumes, they first move the exhaust duct 1 to the designated position, then turn on the exhaust fan 16 inside the exhaust duct 1 to rotate and extract the indoor fumes. When adjusting the efficiency of fumes extraction, staff can first rotate the handle 13 to rotate the threaded rod 14. The threaded rod 14 is threadedly connected to the moving plate 11, allowing the threaded rod 14 to rotate and slide upwards on the moving plate 11. At the same time, the threaded rod 14 slides out of one of the threaded holes 12 inside the moving groove 10. After the threaded rod 14 separates from the threaded hole 12, staff can push the handle 13 horizontally, causing the threaded rod 14 to move the moving plate 11 in the moving groove 10, and causing one end of the connecting plate 5 symmetrically rotated and connected to the upper end of the moving plate 11 to move horizontally, so that the connecting plate 5 moves from an inclined position to a horizontal position. As the state of the connecting plate 5 changes, the connecting plate 5 pushes the end of the rotating connecting plate 5 away from the moving plate 11. The movable frame 4 moves horizontally away from the movable plate 11 within the slide groove 3. During the movement of the movable frame 4, the movable frame 4 can move the lever 9 synchronously through the through groove 8 opened on the upper end face, causing one side of the fixed plate 7 connected to the upper end of the lever 9 to move. Since the fixed plate 7 is fixedly connected to the rotating shaft 6, and the rotating shaft 6 is rotatably connected to the smoke exhaust pipe 1, when the lever 9 moves one side of the fixed plate 7, it can drive the rotating shaft 6 to rotate on the smoke exhaust pipe 1, causing the diversion plate 2 to rotate and open, expanding the distance between the two diversion plates 2, thereby increasing the smoke inlet and smoke outlet. This not only eliminates the need to change the operating state of the exhaust fan 16, reducing the noise generated by the exhaust fan 16 and providing a quieter environment, which is conducive to personnel evacuation and fire protection work, and protecting the hearing health of the staff, but also reduces direct intervention in the exhaust fan 16, reduces the wear of the internal parts of the exhaust fan 16, and thus improves the service life of the exhaust fan 16.

[0031] After the angle of the diversion plate 2 is adjusted, the operator can flip the handle 13 again to rotate the threaded rod 14 in the opposite direction. The threaded rod 14 is threadedly connected to the moving plate 11, allowing the threaded rod 14 to slide downwards on the moving plate 11 and slide back into the threaded hole 12 at the bottom of the moving groove 10. This limits the position of the moving plate 11 and fixes the position of the diversion plate 2. This not only reduces the safety hazards caused by the shaking or displacement of the diversion plate 2, but also, especially in emergencies such as fires, a stable smoke exhaust system can more effectively guide the smoke out, reduce the interference of smoke on personnel and fire fighting work, and improve safety. Moreover, the stable position of the diversion plate 2 helps to maintain the best smoke exhaust efficiency. When the angle and spacing of the diversion plate 2 are precisely adjusted and fixed, it can ensure that the smoke can be smoothly discharged through the smoke inlet and smoke outlet, thereby improving the smoke exhaust efficiency and reducing the residence time of smoke in the room.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fire-fighting smoke exhaust auxiliary device, characterized in that, The system includes a smoke exhaust pipe (1), an exhaust fan (16) is fixedly connected inside the smoke exhaust pipe (1), filter plates (15) are provided on both sides of the exhaust fan (16), the filter plates (15) are fixedly connected inside the smoke exhaust pipe (1), a rotating shaft (6) is symmetrically connected through both sides of the smoke exhaust pipe (1), a guide plate (2) is fixedly connected to the outer surface of the rotating shaft (6), a sliding groove (3) is symmetrically opened on the upper end face of the smoke exhaust pipe (1), and a moving groove (10) is opened at the center of the upper end face of the smoke exhaust pipe (1).

2. The fire-fighting smoke exhaust auxiliary device according to claim 1, characterized in that, A fixing plate (7) is fixedly connected to the upper end of each rotating shaft (6). A lever (9) is fixedly connected to the lower end face of the fixing plate (7) away from the rotating shaft (6). A movable frame (4) is provided between the levers (9) on the same side. The movable frames (4) are slidably connected in the sliding groove (3). A through groove (8) is symmetrically opened on the upper end face of each movable frame (4). The levers (9) are slidably connected in the through groove (8).

3. The fire-fighting smoke exhaust auxiliary device according to claim 2, characterized in that, A movable plate (11) is slidably connected inside the movable slot (10). A connecting plate (5) is symmetrically and rotatably connected to the upper end of the movable plate (11). The end of the connecting plate (5) away from the movable plate (11) is rotatably connected to the upper end of the movable frame (4).

4. A fire-fighting smoke exhaust auxiliary device according to claim 3, characterized in that, A threaded rod (14) is threaded through the movable plate (11), and a handle (13) is fixedly connected to the upper end face of the threaded rod (14).

5. A fire-fighting smoke exhaust auxiliary device according to claim 4, characterized in that, The bottom of the movable groove (10) is provided with threaded holes (12) at equal intervals, and the threaded holes (12) are all threadedly connected to the threaded rod (14).

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