Fire-fighting smoke exhaust device with fire extinguishing function

By using reciprocating and dispersed smoke extraction mechanisms, combined with fire-fighting smoke exhaust devices, the visibility problem in high-rise building fires with high smoke concentrations has been solved, achieving efficient evacuation and fire suppression coverage, and improving personnel safety and evacuation efficiency.

CN223490316UActive Publication Date: 2025-10-31SHANGQIU TOBACCO CO MINQUAN COUNTY BRANCH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422390917.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-10-31
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Existing fire-fighting smoke extraction systems are unable to effectively maintain the visibility of evacuation routes in high-rise building fires, especially when smoke concentration is high and the spread is rapid, which affects the safe evacuation of personnel.

Method used

The system employs a fire-fighting smoke extraction device with fire extinguishing function. The smoke extraction mechanism is driven to move back and forth between the corridors by a reciprocating moving mechanism, and is equipped with a decentralized smoke extraction and fire extinguishing mechanism to ensure uniform smoke extraction and full fire extinguishing coverage, including hard-to-reach places such as corners.

Benefits of technology

It improves smoke extraction efficiency and fire extinguishing range, ensures visibility in corridors, reduces panic, avoids stampedes, and enhances the safety and efficiency of personnel evacuation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223490316U_ABST
    Figure CN223490316U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of smoke exhaust equipment for fire fighting, in particular to a smoke exhaust device with a fire extinguishing function for fire fighting, which comprises a smoke exhaust mechanism, a smoke discharge mechanism and a smoke discharge mechanism, the scattered smoke exhausting mechanism is fixed in the reciprocating motion mechanism and used for scattered smoke exhausting; and the two fire extinguishing mechanisms are fixed to the two sides of the reciprocating motion mechanism, located at the top and used for spraying fire extinguishing. According to the utility model, the smoke exhaust mechanism is driven by the reciprocating motion mechanism to reciprocate in the corridor, so that the smoke exhaust efficiency can be effectively improved, the fire extinguishing range can be expanded, the visibility in the corridor can be continuously guaranteed, and people can see the evacuation direction and path more clearly in the evacuation process; panic psychology caused by smoke diffusion and fire threats is reduced, accidents such as trampling are avoided, and safety and efficiency of personnel evacuation are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of fire-fighting smoke exhaust equipment, specifically to a fire-fighting smoke exhaust device with fire extinguishing function. Background Technology

[0002] With the acceleration of urbanization, high-rise buildings are constantly emerging. High-rise buildings have complex structures and dense populations, and once a fire occurs, they face extremely severe fire safety challenges.

[0003] In high-rise building fires, smoke spreads rapidly vertically due to its own heat and the airflow characteristics within the building. Stairwells and evacuation routes, as crucial evacuation paths, must maintain good visibility to ensure safe and rapid evacuation. Existing fire-fighting smoke extraction systems are typically installed at the building's roof to remove smoke, designed to utilize the natural upward flow of smoke and use strong suction to expel it outside the building.

[0004] However, this design may not be able to effectively maintain the visibility of evacuation routes when the smoke concentration is high and the spread is rapid, especially in areas where the smoke is concentrated, thus affecting the safe evacuation of people. Utility Model Content

[0005] To overcome the aforementioned technical problems, the purpose of this invention is to provide a fire-fighting smoke exhaust device with fire extinguishing function. Driven by a reciprocating mechanism, the smoke exhaust mechanism moves back and forth between stairwells, effectively improving smoke exhaust efficiency and expanding the fire extinguishing range. Visibility within the stairwells is continuously guaranteed, allowing personnel to clearly see the evacuation direction and path during evacuation, reducing panic caused by smoke and fire threats, preventing stampedes and other accidents, and improving the safety and efficiency of personnel evacuation.

[0006] A fire-fighting smoke exhaust device with fire extinguishing function includes:

[0007] The smoke extraction mechanism includes a reciprocating moving mechanism, which is fixed to the wall of the passageway;

[0008] A decentralized smoke extraction mechanism, fixed inside the reciprocating moving mechanism, is used for decentralized smoke extraction;

[0009] There are two fire extinguishing mechanisms, which are fixed on both sides of the reciprocating moving mechanism at the top and are used for spraying fire extinguishing.

[0010] Furthermore, the reciprocating movement mechanism includes:

[0011] One type of slide rail is provided, consisting of two rails that are fixed to the wall at equal intervals.

[0012] Slide rail two, fixed to the wall;

[0013] The rack is fixed to the outer wall of one side of one of the slide rails;

[0014] A U-shaped shell, one end of which slides between two slide rails, has a motor fixedly connected to the top wall of the U-shaped shell near one end, and a rotating seat fixedly connected to the top of the U-shaped shell near the motor. The rotating seat is rotatably connected to a roller, and the roller is fixed to the rotating shaft of the motor.

[0015] There are two smoke pipe insertion interfaces, which are fixed at equal intervals to the top of the U-shaped shell at the center.

[0016] Preferably, the dispersed smoke extraction mechanism includes:

[0017] A dual-axis motor is fixed at the center of the U-shaped shell. Both ends of the dual-axis motor are fixedly connected to a round rod. A bevel gear is fixedly connected to the outer wall of one end of the round rod.

[0018] Two round rods are provided, which are rotatably connected to the two sides inside the U-shaped shell respectively. A bevel gear two is fixedly connected to the outer wall of one end of the round rod two, and the bevel gear two meshes with the bevel gear one for transmission.

[0019] Several fan blades are fixedly connected at equal intervals to the outer walls of the first and second round rods.

[0020] Preferably, the dispersed smoke extraction mechanism includes:

[0021] Several smoke inlets are provided, and they are opened at equal intervals with the inner wall of the U-shaped shell.

[0022] Preferably, the dispersed smoke extraction mechanism includes:

[0023] The inclined block is fixed inside the U-shaped shell near the smoke inlet.

[0024] Preferably, the fire extinguishing mechanism includes:

[0025] There are two rotating seats, which are fixed to the outer walls of both ends of the U-shaped shell respectively. A circular tube is rotatably connected between the two rotating seats. Several nozzles are fixedly connected to the outer wall of the circular tube at equal angles around its axis. Several circular holes are opened on the outer wall of the rotating shaft at one end of the circular tube at equal angles around its axis.

[0026] An L-shaped frame is fixed to the top wall of the U-shaped shell. A ring frame is fixedly connected to the outer wall of one end of the L-shaped frame and is rotatably connected to the outer wall of the round tube at the round hole. An inlet is fixedly connected to the outer wall of the ring frame.

[0027] Preferably, the fire extinguishing mechanism includes:

[0028] A spur gear is fixed to the shaft at one end of a round tube and meshes with the rack for transmission.

[0029] The beneficial effects of this utility model are:

[0030] 1. By driving the smoke exhaust mechanism to move back and forth between corridors through a reciprocating moving mechanism, the smoke exhaust efficiency can be effectively improved and the fire extinguishing range can be expanded. The visibility in the corridors can be continuously guaranteed, and people can see the evacuation direction and route more clearly during the evacuation process, reducing the panic caused by smoke and fire threats, avoiding accidents such as stampedes, and improving the safety and efficiency of personnel evacuation.

[0031] 2. Driven by a decentralized smoke extraction mechanism, several fan blades rotate simultaneously, allowing multiple smoke inlets to extract smoke more evenly. This enables more effective control of smoke concentration in different areas of the corridor, preventing excessively high local smoke concentrations that may occur during concentrated smoking. Consequently, visibility in the corridor is maintained more stably, providing a good visual environment for personnel evacuation and effectively improving the safety and efficiency of personnel evacuation.

[0032] 3. By rotating the fire extinguishing mechanism and moving the smoke exhaust mechanism in conjunction with the reciprocating movement mechanism, the fire extinguishing mechanism can rotate and move simultaneously, ensuring that it can cover every corner of the corridor, including hard-to-reach places such as corners of walls and under stairs. Compared with fixed-position sprinklers, this greatly reduces fire extinguishing blind spots and improves the ability to extinguish fires in corridors. Attached Figure Description

[0033] The following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the structure of slide rail one and slide rail two in this utility model;

[0036] Figure 3 This is a schematic diagram of the U-shaped shell structure in this utility model;

[0037] Figure 4 This is a schematic diagram of the cross-sectional structure of the U-shaped shell in this utility model;

[0038] Figure 5 This is a schematic diagram of the fire extinguishing mechanism in this utility model.

[0039] In the diagram: 100, smoke exhaust mechanism; 200, reciprocating movement mechanism; 210, slide rail one; 211, slide rail two; 212, rack; 220, U-shaped shell; 221, motor; 222, rotating seat one; 223, roller; 230, smoke pipe insertion interface; 300, dispersed smoke extraction mechanism; 310, dual-shaft motor; 320, round rod one; 321, bevel gear one; 322, fan blade; 323, round rod two; 324, bevel gear two; 330, smoke inlet; 331, inclined block; 400, fire extinguishing mechanism; 410, rotating seat two; 411, round pipe; 412, nozzle; 413, round hole; 414, L-shaped frame; 415, ring frame; 416, water inlet; 420, spur gear. Detailed Implementation

[0040] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. 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 of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0041] Please see Figure 1-5 As shown, a fire-fighting smoke exhaust device with fire extinguishing function includes a smoke exhaust mechanism 100. The smoke exhaust mechanism 100 includes a reciprocating moving mechanism 200 and the following parts: the reciprocating moving mechanism 200 is fixed to the wall of the passageway, and a smoke dispersion mechanism 300 is fixed inside the reciprocating moving mechanism 200 for dispersing smoke exhaust; two fire extinguishing mechanisms 400 are provided, respectively fixed on both sides of the reciprocating moving mechanism 200 at the top, for spraying fire extinguishing. The reciprocating moving mechanism 200 includes the following parts: two slide rails 210 are provided at equal intervals and fixed to the wall, and slide rail 211 is fixed to the wall; a rack 212 is fixed to the outer wall of one side of one of the slide rails 210. At this location, one end of the U-shaped shell 220 slides between two slide rails 210. A motor 221 is fixedly connected to one end of the top wall of the U-shaped shell 220, and a rotating seat 222 is fixedly connected to the top of the U-shaped shell 220 near the motor 221. The rotating seat 222 is rotatably connected to a roller 223, and the roller 223 is fixed to the rotating shaft of the motor 221. Two smoke pipe inlets 230 are provided, which are fixed at equal intervals at the top of the U-shaped shell 220 at the center. The reciprocating moving mechanism 200 drives the smoke exhaust mechanism 100 to reciprocate between the corridors, which can effectively improve the smoke exhaust efficiency and expand the fire extinguishing range, and the visibility in the corridor can be continuously guaranteed.

[0042] The dispersed smoke extraction mechanism 300 includes the following components: a dual-shaft motor 310 fixedly located at the center inside the U-shaped shell 220; round rods 320 fixedly connected to both ends of the dual-shaft motor 310; a bevel gear 321 fixedly connected to the outer wall of one end of the round rod 320; two round rods 323 respectively rotatably connected to both sides inside the U-shaped shell 220; and a bevel gear 324 fixedly connected to the outer wall of one end of the round rod 323, with the bevel gear 324 interacting with the bevel gear 321. 1. Meshing transmission: Several fan blades 322 are fixedly connected at equal intervals to the outer walls of the first round rod 320 and the second round rod 323. Several smoke inlets 330 are provided and are opened at equal intervals with the inner wall of the U-shaped shell 220. The inclined block 331 is fixed to the inside of the U-shaped shell 220 near the smoke inlet 330. Driven by the dispersed smoke extraction mechanism 300, several fan blades 322 are driven to rotate simultaneously. Multiple smoke inlets can extract smoke more evenly, and the smoke concentration in various areas of the corridor can be more effectively controlled.

[0043] The fire extinguishing mechanism 400 includes the following parts: Two rotating seats 410 are provided, respectively fixed to the outer walls of both ends of the U-shaped shell 220; a circular tube 411 is rotatably connected between the two rotating seats 410; several nozzles 412 are fixedly connected to the outer wall of the circular tube 411 at equal angles around its axis; and several circular holes 413 are opened at equal angles around the axis of the rotating shaft at one end of the circular tube 411; an L-shaped frame 414 is fixed to the top wall of the U-shaped shell 220; and a fixed connection is made to the outer wall of one end of the L-shaped frame 414. There is a ring frame 415, which is rotatably connected to the outer wall of the round pipe 411 at the round hole 413. The outer wall of the ring frame 415 is fixedly connected to the water inlet 416. Its spur gear 420 is fixed to the shaft at one end of the round pipe 411 and meshes with the rack 212 for transmission. Through the rotation spray of the fire extinguishing mechanism 400, and in conjunction with the reciprocating moving mechanism 200 to drive the smoke exhaust mechanism 100 to move, it can perform rotating spray while moving, ensuring that it can cover all corners of the corridor, including hard-to-reach places such as corners of walls and under stairs.

[0044] Specifically, during operation, motor 221 drives roller 223 to rotate, which slides inside slide rail 211, causing U-shaped shell 220 to reciprocate inside slide rail 210. This, in turn, causes smoke extraction mechanism 100 to reciprocate between corridors. During the movement of smoke extraction mechanism 100, dual-axis motor 310 drives two cylindrical rods 320 to rotate, simultaneously rotating several fan blades 322. Smoke near the smoke inlet 330 is drawn into the U-shaped shell 220 by the suction of the fan blades 322 and flows along the U-shaped... The smoke inside the shell 220 is discharged from the smoke pipe insertion interface 230. An inclined block 331 is provided to effectively prevent smoke drawn in from below from being discharged from the smoke inlet 330 after passing through the smoke inlet 330 above, thus effectively improving the stability of operation. A water pipe is inserted into the water inlet 416, and water will enter the round pipe 411 through the round hole 413 and then be sprayed out from the nozzle 412. During the movement of the smoke exhaust mechanism 100, the spur gear 420 will mesh with the rack 212, driving the round pipe 411 to rotate and cover the corridor with spray.

[0045] Example 1

[0046] like Figure 2-3 As shown, in this embodiment, the reciprocating moving mechanism 200 includes the following parts: two slide rails 210 are fixed to the wall at equal intervals, and slide rail 211 is fixed to the wall; a rack 212 is fixed to the outer wall of one of the slide rails 210; one end of the U-shaped shell 220 slides between the two slide rails 210; a motor 221 is fixedly connected to the top wall of the U-shaped shell 220 near one end; a rotating seat 222 is fixedly connected to the top of the U-shaped shell 220 near the motor 221; a roller 223 is rotatably connected to the rotating seat 222; and the roller 223 is fixed to the shaft of the motor 221. Two pipe insertion interfaces 230 are provided and fixed at equal intervals at the center of the top of the U-shaped shell 220.

[0047] In this embodiment, the motor 221 drives the roller 223 to rotate and slide inside the slide rail 211, causing the U-shaped shell 220 to reciprocate inside the slide rail 210, which in turn drives the smoke exhaust mechanism 100 to reciprocate between the corridors. The reciprocating mechanism 200 drives the smoke exhaust mechanism 100 to reciprocate between the corridors, which can effectively improve the smoke exhaust efficiency and expand the fire extinguishing range. The visibility in the corridors can be continuously guaranteed, and people can see the evacuation direction and path more clearly during the evacuation process, reducing the panic caused by smoke and fire threats, avoiding trampling accidents, and improving the safety and efficiency of personnel evacuation.

[0048] like Figure 4As shown, in this embodiment, the dispersed smoke extraction mechanism 300 includes the following parts: its dual-axis motor 310 is fixed at the center inside the U-shaped shell 220; a round rod 320 is fixedly connected to both ends of the dual-axis motor 310; a bevel gear 321 is fixedly connected to the outer wall of one end of the round rod 320; two round rods 323 are respectively rotatably connected to the two sides inside the U-shaped shell 220; a bevel gear 324 is fixedly connected to the outer wall of one end of the round rod 323, and the bevel gear 324 meshes with the bevel gear 321 for transmission; a number of fan blades 322 are fixedly connected at equal intervals to the outer walls of the round rods 320 and 323; a number of smoke inlets 330 are provided, which are opened at equal intervals to the inner wall of the U-shaped shell 220; and an inclined block 331 is fixed inside the U-shaped shell 220 near the smoke inlet 330.

[0049] In practice, during the movement of the smoke extraction mechanism 100, the dual-axis motor 310 drives two round rods 320 to rotate, simultaneously driving several fan blades 322 to rotate. Smoke near the smoke inlet 330 is drawn into the U-shaped shell 220 by the suction of the fan blades 322, and discharged from the smoke pipe inlet 230 through the inside of the U-shaped shell 220. An inclined block 331 is provided to effectively prevent smoke drawn from below from being discharged from the smoke inlet 330 after passing through the smoke inlet 330 above, effectively improving operational stability. Driven by the dispersed smoke extraction mechanism 300, several fan blades 322 rotate simultaneously, allowing multiple smoke inlets to extract smoke more evenly. The smoke concentration in various areas of the corridor can be more effectively controlled, preventing the local smoke concentration from becoming too high when smoking is concentrated. This maintains visibility in the corridor more stably, providing a good visual environment for personnel evacuation and effectively improving the safety and efficiency of personnel evacuation.

[0050] Example 2

[0051] like Figure 5 As shown, in this embodiment, the fire extinguishing mechanism 400 includes the following parts: two rotating seats 410 are provided, which are respectively fixed to the outer walls of both ends of the U-shaped shell 220. A round tube 411 is rotatably connected between the two rotating seats 410. Several nozzles 412 are fixedly connected to the outer wall of the round tube 411 at equal angles around its axis. Several round holes 413 are opened on the outer wall of the rotating shaft at one end of the round tube 411 at equal angles around its axis. The L-shaped frame 414 is fixed to the top wall of the U-shaped shell 220. A ring frame 415 is fixedly connected to the outer wall of one end of the L-shaped frame 414 and is rotatably connected to the outer wall of the round tube 411 at the round hole 413. A water inlet 416 is fixedly connected to the outer wall of the ring frame 415. The spur gear 420 is fixed to the rotating shaft at one end of the round tube 411 and meshes with the rack 212 for transmission.

[0052] In practice, a water pipe is inserted into the inlet 416, and water enters the inside of the round pipe 411 through the round hole 413 and then sprays out from the nozzle 412. During the movement of the smoke exhaust mechanism 100, the spur gear 420 meshes with the rack 212, driving the round pipe 411 to rotate and spray the corridor. Through the rotational spray of the fire extinguishing mechanism 400, and in conjunction with the reciprocating moving mechanism 200 driving the smoke exhaust mechanism 100 to move, it can perform rotating spray while moving, ensuring that it can cover all corners of the corridor, including hard-to-reach places such as corners of walls and under stairs. Compared with fixed-position spraying, it greatly reduces fire extinguishing blind spots and improves the ability to extinguish fires in corridors.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structural material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structural materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above description is merely an example and illustration of the present utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A fire-fighting smoke exhaust device with fire extinguishing function, characterized in that, include: The smoke exhaust system (100) includes a reciprocating moving mechanism (200), which is fixed to the wall of the passageway; A decentralized smoke extraction mechanism (300) is fixed inside the reciprocating moving mechanism (200) and is used for decentralized smoke extraction; There are two fire extinguishing mechanisms (400), which are fixed on both sides of the reciprocating moving mechanism (200) at the top and are used for spraying fire extinguishing.

2. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 1, characterized in that, The reciprocating moving mechanism (200) includes: Slide rail 1 (210) has two sections, which are fixed to the wall at equal intervals; Slide rail 2 (211) is fixed to the wall; A rack (212) is fixed to the outer wall of one side of one of the slide rails (210); A U-shaped shell (220) slides between two slide rails (210) at one end. A motor (221) is fixedly connected to the top wall of the U-shaped shell (220) near one end. A rotating seat (222) is fixedly connected to the top of the U-shaped shell (220) near the motor (221). A roller (223) is rotatably connected to the rotating seat (222), and the roller (223) is fixed to the shaft of the motor (221). There are two smoke pipe insertion interfaces (230), which are fixed at equal intervals to the top of the U-shaped shell (220) at the center.

3. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 2, characterized in that, The decentralized smoking system (300) includes: A dual-axis motor (310) is fixed at the center inside the U-shaped shell (220). Both ends of the dual-axis motor (310) are fixedly connected to a round rod (320). A bevel gear (321) is fixedly connected to the outer wall of one end of the round rod (320). Two round rods (323) are provided, which are rotatably connected to the two sides inside the U-shaped shell (220). One end of the round rod (323) is fixedly connected to the outer wall of the bevel gear (324), and the bevel gear (324) meshes with the bevel gear (321) for transmission. Several fan blades (322) are fixedly connected at equal intervals to the outer walls of round rod one (320) and round rod two (323).

4. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 3, characterized in that, The decentralized smoking system (300) includes: Several smoke inlets (330) are provided and are opened at equal intervals with the inner wall of the U-shaped shell (220).

5. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 4, characterized in that, The decentralized smoking system (300) includes: The inclined block (331) is fixed inside the U-shaped shell (220) near the smoke inlet (330).

6. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 5, characterized in that, Firefighting equipment (400) includes: There are two rotating seats (410), which are fixed to the outer walls of the two ends of the U-shaped shell (220). A round tube (411) is rotatably connected between the two rotating seats (410). Several nozzles (412) are fixedly connected to the outer wall of the round tube (411) at equal angles around its axis. Several round holes (413) are opened at equal angles around the outer wall of the rotating shaft at one end of the round tube (411). The L-shaped frame (414) is fixed to the top wall of the U-shaped shell (220). A ring frame (415) is fixedly connected to the outer wall of one end of the L-shaped frame (414) and is rotatably connected to the outer wall of the round tube (411) at the round hole (413). An inlet (416) is fixedly connected to the outer wall of the ring frame (415).

7. A fire-fighting smoke exhaust device with fire extinguishing function according to claim 6, characterized in that, Firefighting equipment (400) includes: A spur gear (420) is fixed at one end of the shaft of the round tube (411) and meshes with the rack (212) for transmission.