Indoor fire self-induction smoke exhaust ignition system
By designing an indoor fire self-sensing smoke exhaust and ignition system, a negative pressure is generated by an exhaust fan to draw in toxic smoke and a heat insulation board is used to block the flames, thus solving the problem of slow smoke exhaust during a fire and improving escape safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 晋中市红色清洗消毒中心
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-05
AI Technical Summary
When a fire occurs, the ventilation system shuts down, causing toxic fumes to escape slowly and affecting the safety of those trying to escape.
An indoor fire self-sensing smoke exhaust and ignition system was designed, including a smoke collection body, a smoke exhaust body, a smoke inlet pipe, an exhaust fan, and a switching mechanism. The exhaust fan generates negative pressure to draw in toxic smoke, and staggered heat insulation plates block the flames, thus quickly exhausting the toxic smoke.
It enabled the rapid removal of toxic fumes, improving the safety of those escaping.
Smart Images

Figure CN224201830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue fire prevention technology, and in particular to an indoor fire self-sensing smoke exhaust and ignition system. Background Technology
[0002] When a fire occurs, the flames burn objects, producing a large amount of toxic smoke, which can harm people trying to escape. Usually, the ventilation system will automatically shut down when a fire occurs, so the toxic smoke can only be discharged through the windows or accumulate in the corridors, slowing down the discharge of the toxic smoke and further affecting the personal safety of people trying to escape. Utility Model Content
[0003] The purpose of this invention is to provide an indoor fire self-sensing smoke exhaust and ignition system to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an indoor fire self-sensing smoke exhaust and ignition system, including a smoke collection body, the lower part of which is connected to a smoke exhaust body, an inlet pipe for sucking up toxic smoke on the outer wall of the smoke exhaust body, a fireproof component inside the inlet pipe, a switch mechanism for controlling the opening and closing of the inlet pipe on the front side of the inlet pipe, an exhaust fan for providing suction on one side of the top of the smoke collection body, an exhaust pipe for exhausting smoke on the front side of the top of the smoke collection body, and a control box for controlling the exhaust fan and the switch mechanism on one side of the exhaust pipe.
[0005] Preferably, one end of the smoke inlet pipe is connected through to the outer wall of the smoke exhaust body, and the fireproof component is disposed inside the other end of the smoke inlet pipe.
[0006] Preferably, the fireproof component includes staggered heat insulation plates, the ends of which are fixedly connected to the inner wall of the smoke inlet pipe.
[0007] Preferably, the outer wall of the top of the smoke collector is provided with a roof, and a solar power generation device and an energy storage module for providing power are fixedly connected to the top of the roof. The solar power generation device and the energy storage module are electrically connected to store excess power in the energy storage module. The control box is electrically connected to the solar power generation device, the energy storage module, the induced draft fan, and the switching mechanism.
[0008] Preferably, the back of the exhaust pipe is connected to the outer wall of the smoke collection body. The switching mechanism includes an exhaust door, an electric cylinder, an L-shaped track, a first slider, and a second slider. An exhaust door mounting block is provided on the back of the exhaust door. A first hinge hole and a second hinge hole are respectively provided on both ends of the exhaust door mounting block. The first slider is hinged to the first hinge hole, and the second slider is hinged to the second hinge hole. The first slider and the second slider are slidably mounted on the L-shaped track. The L-shaped track is fixedly installed inside the smoke inlet pipe. The electric cylinder is hinged to the first slider. The electric cylinder drives the first slider to move linearly along the L-shaped track to open and close the exhaust door.
[0009] Preferably, the horizontal track of the L-shaped track is provided with a limit block on the side closest to the vertical track.
[0010] Preferably, the control box integrates or is connected to an automatic transfer switch, the input terminals of which are respectively connected to the control energy storage module and the mains power input interface.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] This utility model utilizes the design of a smoke collection body, a smoke exhaust body, a smoke inlet pipe, an induced draft fan, and a switching mechanism. In the event of a fire, the control box opens the smoke exhaust door via a control cylinder, and simultaneously starts the induced draft fan to draw in air, thereby creating negative pressure. This allows toxic smoke to flow through the smoke inlet pipe and the smoke exhaust body into the smoke collection body, and finally be discharged from the smoke exhaust pipe. At the same time, the staggered heat insulation plates can block flames to achieve rapid discharge of toxic smoke. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the building of this utility model;
[0014] Figure 2 This is a schematic diagram of the three-dimensional roof structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the floor of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the smoke inlet pipe of this utility model;
[0017] Figure 5 This is a diagram showing the closed state of the switch mechanism of this utility model;
[0018] Figure 6 This is a diagram showing the open state of the switch mechanism of this utility model;
[0019] Figure 7 This is a diagram showing the open state of the switch mechanism of this utility model;
[0020] Figure 8 This is a schematic diagram of the L-shaped track structure of this utility model;
[0021] Figure 9 This is a schematic diagram of the first slider structure of this utility model;
[0022] Figure 10 This is a schematic diagram of the smoke exhaust door structure of this utility model;
[0023] Figure 11 Schematic diagram of the connection structure between the smoke exhaust body and the smoke collection body of this utility model;
[0024] Figure 12 This utility model presents a cross-sectional structural diagram of the smoke inlet pipe.
[0025] In the diagram: 1-Smoke collector; 10-Smoke exhaust system; 2-Rooftop; 3-Smoke inlet pipe; 4-Insulation board; 5-Exhaust fan; 6-Smoke exhaust pipe; 70-Smoke exhaust door mounting block; 71-Smoke exhaust door; 72-Electric cylinder; 73-L-shaped track; 731-Limiting block; 74-First slider; 75-Second slider; 8-Control box; 9-Solar power generation device. 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] This utility model provides, for example Figure 1-12 The indoor fire self-sensing smoke exhaust and ignition system shown includes a smoke collection body 1, with a smoke exhaust body 10 connected to the lower part of the smoke collection body. The outer wall of the smoke exhaust body 10 is provided with a smoke inlet pipe 3 for absorbing toxic smoke. Fireproof components are installed inside the smoke inlet pipe 3. A switch mechanism for controlling the opening and closing of the smoke inlet pipe 3 is provided on the front of the smoke inlet pipe 3. An exhaust fan 5 for providing suction is provided on one side of the top of the smoke collection body 1. An exhaust pipe 6 for exhausting smoke is provided on the front of the top of the smoke collection body 1. A control box 8 for controlling the exhaust fan 5 and the switch mechanism is provided on one side of the exhaust pipe 6.
[0028] Specifically, one end of the smoke inlet pipe 3 is connected through to the outer wall of the smoke exhaust body 10, and the fireproof component is installed inside the other end of the smoke inlet pipe 3. The fireproof component includes staggered heat insulation plates 4, and the end of the heat insulation plate 4 is fixedly connected to the inner wall of the smoke inlet pipe 3.
[0029] Furthermore, each floor is equipped with multiple smoke inlet pipes 3. The smoke inlet pipes 3 are made of fire-resistant metal materials, such as galvanized stainless steel plates. Fireproof components are installed inside the smoke inlet end of the smoke inlet pipes 3. The fireproof components include multiple staggered heat insulation plates 4. The multiple heat insulation plates 4 are staggered vertically, so that the flow of smoke in the vertical section forms a serpentine shape, thereby preventing flames from entering the exhaust body 10 through the smoke inlet pipes 3. The heat insulation plates 4 are made of the same material as the smoke inlet pipes 3.
[0030] Specifically, a roof 2 is provided on the outer wall of the top of the smoke collection body 1. A solar power generation device 9 and an energy storage module are fixedly connected to the top of the roof 2. The solar power generation device and the energy storage module are electrically connected to store excess power in the energy storage module. The control box is electrically connected to the solar power generation device, the energy storage module, the exhaust fan 5, and the switching mechanism. The control box integrates or is connected to an automatic transfer switch. The input terminals of the automatic transfer switch are respectively connected to the control energy storage module and the mains power input interface. The automatic transfer switch is configured to automatically select and switch the power supply of the energy storage module or the mains power input interface to the output terminal to power the smoke exhaust fan according to the power status of the energy storage module or the system control command. The solar power generation, energy storage, and automatic transfer switch technologies are mature technologies and will not be described in detail in this embodiment.
[0031] Furthermore, a blower can be installed at the bottom of the smoke exhaust body 10. The blower works in conjunction with the induced draft fan 5 to allow the airflow inside the smoke exhaust body 10 to rise to the top of the smoke collection body 1 more quickly. The blower, induced draft fan 5, and electric cylinders 72 on each floor are all electrically connected to the control box 8. The control box 8 is electrically connected to the fire alarm on each floor of the building. When the fire alarm on a floor is triggered, the control box 8 controls the induced draft fan 5, the electric cylinder 72 on the floor corresponding to the fire alarm to work simultaneously, thereby creating a negative pressure inside the smoke exhaust body 10. This draws in toxic smoke through the smoke inlet pipe 3. The contraction of the output end of the electric cylinder 72 drives the smoke exhaust door 71 to rotate, opening the smoke inlet pipe 3 on the floor where the fire alarm was triggered, allowing for the extraction and discharge of toxic smoke. The solar power generation device 9 is an existing photovoltaic panel. The electricity generated by the photovoltaic panel is stored in a battery and then supplied to the control box 8, thus providing energy for the operation of the induced draft fan 5, electric cylinder 72, and blower.
[0032] As shown in 4-10, the back of the smoke exhaust pipe 6 is connected to the outer wall of the smoke collection body 1. For ease of observation and understanding, Figure 5 , 6The top of the smoke inlet pipe 3 is hidden in section 7. The switching mechanism includes a smoke exhaust door 71, an electric cylinder 72, an L-shaped track 73, a first slider 74, and a second slider 75. A smoke exhaust door mounting block 70 is provided on the back of the smoke exhaust door 71. A first hinge hole and a second hinge hole are respectively provided on both ends of the smoke exhaust door mounting block 70. The first slider 74 is hinged to the first hinge hole, and the second slider 75 is hinged to the second hinge hole. The first slider 74 and the second slider 75 are slidably mounted on the L-shaped track 73. The L-shaped track 73 is fixedly installed inside the smoke inlet pipe 3. The electric cylinder 72 is hinged to the first slider 74. Figure 9 As shown, the first slider is equipped with two hinge pins. The electric cylinder 72 drives the first slider 74 to move linearly along the L-shaped track. When the output end of the electric cylinder 72 retracts, it drives the exhaust door 71 to rotate away from the smoke inlet pipe 3 and into the smoke inlet pipe 3, thus opening the exhaust door 71 to allow smoke to enter the smoke inlet pipe 3. When the output end of the electric cylinder 72 extends, it drives the exhaust door 71 to rotate closer to the smoke inlet pipe 3, closing the smoke inlet pipe 3 and preventing foreign objects from entering. A limit block 731 is provided on the side of the horizontal track of the L-shaped track near the vertical track. The second slider slides on the horizontal track and stops when it reaches the limit block 731. At this time, the exhaust door 71 is opened to the desired position. Figure 7 The location shown.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An indoor fire self-sensing smoke exhaust and ignition system, comprising a smoke collection body (1), characterized in that, The lower part of the smoke collection body is connected to the smoke exhaust body (10). The outer wall of the smoke exhaust body (10) is provided with a smoke inlet pipe (3) for sucking up toxic smoke. The inside of the smoke inlet pipe (3) is provided with a fireproof component. The front of the smoke inlet pipe (3) is provided with a switch mechanism for controlling the opening and closing of the smoke inlet pipe (3). A blower (5) for providing suction is provided on one side of the top of the smoke collection body (1). A smoke exhaust pipe (6) for exhausting smoke is provided on the front of the top of the smoke collection body (1). A control box (8) for controlling the blower (5) and the switch mechanism is provided on one side of the smoke exhaust pipe (6).
2. The indoor fire self-sensing smoke exhaust and ignition system according to claim 1, characterized in that, One end of the smoke inlet pipe (3) is connected to the outer wall of the smoke exhaust body (10), and the fireproof component is located inside the other end of the smoke inlet pipe (3).
3. The indoor fire self-sensing smoke exhaust and ignition system according to claim 2, characterized in that, The fireproof component includes staggered heat insulation plates (4), the ends of which are fixedly connected to the inner wall of the smoke inlet pipe (3).
4. The indoor fire self-sensing smoke exhaust and ignition system according to claim 1, characterized in that, The outer wall of the top of the smoke collector (1) is provided with a roof (2). The top of the roof (2) is fixedly connected to a solar power generation device (9) and an energy storage module for providing power. The solar power generation device and the energy storage module are electrically connected to store excess power in the energy storage module. The control box is electrically connected to the solar power generation device, the energy storage module, the induced draft fan (5), and the switch mechanism.
5. The indoor fire self-sensing smoke exhaust and ignition system according to claim 1, characterized in that, The back of the exhaust pipe (6) is connected to the outer wall of the smoke collection body (1). The switching mechanism includes an exhaust door (71), an electric cylinder (72), an L-shaped track (73), a first slider (74), and a second slider (75). An exhaust door mounting block (70) is provided on the back of the exhaust door (71). A first hinge hole and a second hinge hole are provided on both sides of the exhaust door mounting block (70). The first slider (74) is hinged to the first hinge hole, and the second slider (75) is hinged to the second hinge hole. The first slider (74) and the second slider (75) are slidably mounted on the L-shaped track (73). The L-shaped track (73) is fixedly mounted inside the smoke inlet pipe (3). The electric cylinder (72) is hinged to the first slider (74). The electric cylinder (72) drives the first slider (74) to move linearly along the L-shaped track to open and close the exhaust door.
6. The indoor fire self-sensing smoke exhaust and ignition system according to claim 5, characterized in that, The L-shaped track has a limit block (731) on the side of the horizontal track close to the vertical track.
7. The indoor fire self-sensing smoke exhaust and ignition system according to claim 1, characterized in that, The control box integrates or is connected to an automatic transfer switch, the input terminals of which are connected to the control energy storage module and the mains power input interface, respectively.