Smoke exhaust device for intelligent fire engineering

By designing a smoke extraction device for intelligent fire protection engineering, a miniature air pump and heat-resistant pipe system are used to deliver fresh air to breathing masks, solving the problem of insufficient air supply at fire scenes, extending the survival time of people in dense smoke and increasing the chances of rescue.

CN224162703UActive Publication Date: 2026-04-24YICHENG DIGITAL TECH (WUHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YICHENG DIGITAL TECH (WUHAN) CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

At a fire scene, when people crawl on the ground, the high smoke concentration near the ground can lead to insufficient air supply, which may cause people to faint or be poisoned. Existing smoke extraction devices are unable to effectively provide fresh air for people to breathe.

Method used

A smoke exhaust device for intelligent fire protection engineering was designed, comprising a miniature air pump, an air delivery pipe, a heat-resistant pipe, and a breathing mask. The miniature air pump draws in outside air and delivers it to the breathing mask through the heat-resistant pipe, providing fresh air for people to use.

Benefits of technology

It prolongs the time people can endure in the thick smoke, preventing fainting or poisoning and increasing the chances of rescue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of smoke exhaust devices, in particular to a smoke exhaust device for intelligent fire engineering, which comprises a smoke exhaust pipe, an auxiliary smoke exhaust pipe fixedly connected to the top end of the smoke exhaust pipe, a connecting pipe fixedly connected to the bottom end of the smoke exhaust pipe, a partition plate in contact with the bottom end of the connecting pipe, and a protective shell fixedly connected to the inner side of the smoke exhaust pipe. The miniature air pump operates to drive the air conveying pipe to extract air to the outside, the extracted air is conveyed to the connecting block along the air conveying pipe, then the air is conveyed to the heat-resisting pipe through the connecting block, and finally the air is conveyed to the breathing mask through the heat-resisting pipe. By means of the breathing mask, people in dense smoke can supplement fresh air through the breathing mask, so that the syncope phenomenon of a user in a dense smoke environment for a long time is avoided, the persistence time of the user in the dense smoke is prolonged as much as possible, and the possibility that the user is rescued is improved.
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Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust device technology, and in particular to a smoke exhaust device for intelligent fire protection engineering. Background Technology

[0002] Smoke exhaust systems are a core component of building fire protection systems, used to quickly remove high-temperature smoke and toxic gases during a fire, ensuring safe evacuation of personnel and assisting in firefighting. They mainly consist of smoke exhaust fans, fireproof ducts, smoke exhaust outlets, and control systems. Through mechanical forced extraction or natural thermal pressure differential exhaust, smoke is directed to the outside through smoke control zones.

[0003] Smoke exhaust systems are the core smoke control equipment in building fire protection systems. They consist of high-temperature resistant fans, fireproof ducts, automatic smoke exhaust valves, and intelligent control systems, and have three core characteristics: First, extreme environmental reliability, capable of operating continuously for more than 30 minutes at a high temperature of 280℃; second, high-efficiency smoke exhaust capacity, achieving a smoke exhaust volume of several thousand cubic meters per minute through powerful mechanical extraction; and third, intelligent linkage control, which is linked in real time with the fire alarm system and automatically opens the smoke exhaust outlets of the corresponding smoke control zones.

[0004] However, the following problems were found in the implementation of the relevant technology: In general, people at a fire scene usually crawl on the ground because smoke is lighter than air, so there is relatively more air for people to breathe in the area near the ground. However, when the smoke is thick, even if people are crawling on the ground, they may faint or be poisoned due to not breathing fresh air for a long time. In view of this, a smoke exhaust device for intelligent fire protection engineering is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a smoke exhaust device for intelligent fire protection engineering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a smoke exhaust device for intelligent fire protection engineering, comprising a smoke exhaust pipe, a smoke exhaust auxiliary pipe fixedly connected to the top end of the smoke exhaust pipe, a connecting pipe fixedly connected to the bottom end of the smoke exhaust pipe, an isolation plate contacting the bottom end of the connecting pipe, a protective shell fixedly connected to the inner side of the smoke exhaust pipe, electromagnetic valves spirally connected to the left and right sides of the protective shell, an air supply pipe provided on the inner side of the smoke exhaust pipe, a smoke alarm fixedly connected to the top end of the inner side of the smoke exhaust pipe, a connecting block fixedly connected to the top end of the inner side of the smoke exhaust pipe, a heat-resistant pipe fixedly connected to the bottom end of the connecting block, miniature air pumps fixedly connected to the left and right sides of the connecting block, a base plate contacting the bottom end of the protective shell, and a breathing mask fixedly connected to the top end of the base plate.

[0007] As a further description of the above technical solution: a dual-axis motor is fixedly connected to the bottom end of the connecting pipe, and the two ends of the output end of the dual-axis motor are fixedly connected to the isolation plate. The isolation plate is rotatably connected to the connecting pipe through the dual-axis motor, so that the isolation plate can be unfolded by the operation of the dual-axis motor.

[0008] As a further description of the above technical solution: one end of the gas supply pipe is fixedly connected to the air inlet end of the solenoid valve, the gas supply pipe is connected to the solenoid valve, the gas supply end of the solenoid valve is fixedly connected to the air inlet end of the micro air pump, the gas supply end of the micro air pump is fixedly connected to the connecting block, and the heat-resistant pipe is connected to the connecting block, so as to facilitate the operation of the micro air pump to drive the gas supply pipe to transport air.

[0009] As a further description of the above technical solution: a micro motor is fixedly connected to the inner side wall of the protective shell, and a connecting shaft is fixedly connected to one end of the output end of the micro motor. The connecting shaft fixedly connected to the output end of the micro motor is rotatably connected to the protective shell, so as to facilitate the release of the heat-resistant tube by the operation of the micro motor.

[0010] As a further description of the above technical solution: the heat-resistant tube is connected to the air delivery tube through a micro air pump, the heat-resistant tube is wound around the connecting shaft fixedly connected to the output end of the micro motor, and the other end of the heat-resistant tube is fixedly connected to the breathing mask, so as to facilitate the connection of the air delivery tube through the heat-resistant tube.

[0011] As a further description of the above technical solution: a controller is fixedly connected to one side of the connecting block. The controller is electrically connected to the smoke alarm, the smoke alarm is electrically connected to the micro motor, the controller is electrically connected to the micro air pump, and the controller is electrically connected to the solenoid valve. The other side of the air supply pipe is fixedly connected to one end of the suction nozzle. The suction nozzle is connected to the air supply pipe, which facilitates the control of related devices through the controller.

[0012] As a further description of the above technical solution: the other end of the gas delivery pipe is fixedly connected to a base, the inner side of the base is fixedly connected to a suction nozzle, the base is slidably connected to a sliding block, the inner side of the base is fixedly connected to an electric push rod, the output shaft of the electric push rod is slidably connected to the base, and one end of the output shaft of the electric push rod is fixedly connected to the bottom end of the sliding block, so as to facilitate the movement of the sliding plate by the operation of the electric push rod.

[0013] This utility model has the following beneficial effects:

[0014] This utility model designs a smart fire protection engineering smoke exhaust device that combines a miniature air pump, an air supply pipe, and a heat-resistant pipe through a coordinated design. The operation of the miniature air pump drives the air supply pipe to draw air from the outside and delivers the drawn air along the air supply pipe to the connecting block. Then, the air is delivered through the connecting block to the heat-resistant pipe and finally to the breathing mask through the heat-resistant pipe. This allows people in dense smoke to replenish fresh air through the breathing mask, thereby preventing users from fainting due to prolonged exposure to dense smoke and maximizing the user's endurance in dense smoke, thus increasing the user's chances of being rescued.

[0015] This utility model designs a smart fire protection engineering smoke exhaust device that combines a base, a sliding block, an electric push rod, and other components through a design. The extension of the electric push rod causes the sliding block, which is fixed to one end of the telescopic rod, to move. The movement of the sliding block exposes the suction nozzle covered by the sliding block to the air. In this way, the suction nozzle is protected by the sliding block covering it, preventing problems caused by long-term exposure to the air. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the exhaust pipe of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the protective shell of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the base of this utility model.

[0020] Legend:

[0021] 1. Exhaust pipe; 2. Exhaust auxiliary pipe; 3. Connecting pipe; 4. Isolation plate; 5. Gas supply pipe; 6. Base; 7. Smoke alarm; 8. Base plate; 9. Breathing mask; 10. Protective shell; 11. Miniature motor; 12. Heat-resistant pipe; 13. Solenoid valve; 14. Controller; 15. Miniature air pump; 16. Dual-axis motor; 17. Connecting block; 18. Sliding block; 19. Nozzle; 20. Electric push rod. Detailed Implementation

[0022] Reference Figures 1 to 4This utility model provides a smoke exhaust device for intelligent fire protection engineering, including a smoke exhaust pipe 1, a smoke exhaust auxiliary pipe 2 welded to the top of the smoke exhaust pipe 1, a connecting pipe 3 welded to the bottom of the smoke exhaust pipe 1, an isolation plate 4 in contact with the bottom of the connecting pipe 3, a protective shell 10 fixed to the inner side of the smoke exhaust pipe 1 by screws, a solenoid valve 13 spirally connected to the left and right sides of the protective shell 10, an air supply pipe 5 provided inside the smoke exhaust pipe 1, a smoke alarm 7 fixed to the top of the inner side of the smoke exhaust pipe 1 by screws, a connecting block 17 fixed to the top of the inner side of the smoke exhaust pipe 1 by screws, a heat-resistant pipe 12 glued to the bottom of the connecting block 17, and a miniature air pump 15 fixed to the left and right sides of the connecting block 17 by screws. The bottom of the protective shell 10 is in contact with the base plate 8, and the top of the base plate 8 is fixed with a breathing mask 9 by a strap. This utility model uses the operation of the micro air pump 15 to drive the air supply pipe 5 to draw air from the outside, and then transports the drawn air along the air supply pipe 5 to the connecting block 17. Then, it is transported through the connecting block 17 to the heat-resistant pipe 12, and finally to the breathing mask 9 through the heat-resistant pipe 12. This allows people in dense smoke to replenish fresh air through the breathing mask 9, thereby preventing users from fainting due to prolonged exposure to dense smoke, thus prolonging the user's endurance in dense smoke as much as possible and increasing the user's chances of being rescued.

[0023] As a further implementation of the above technical solution: a dual-axis motor 16 is fixedly connected to the bottom end of the connecting pipe 3, and the two ends of the output end of the dual-axis motor 16 are fixedly connected to the isolation plate 4. The isolation plate 4 is rotatably connected to the connecting pipe 3 through the dual-axis motor 16, so that the isolation plate 4 can be opened by the operation of the dual-axis motor 16.

[0024] As a further implementation of the above technical solution: one end of the air supply pipe 5 is fixedly connected to the air inlet end of the solenoid valve 13, the air supply pipe 5 is connected to the solenoid valve 13, the air supply end of the solenoid valve 13 is fixedly connected to the air inlet end of the micro air pump 15, the air supply end of the micro air pump 15 is fixedly connected to the connecting block 17, and the heat-resistant pipe 12 is connected to the connecting block 17, so that the air supply pipe 5 can be driven to transport air by the operation of the micro air pump 15.

[0025] As a further implementation of the above technical solution: a micro motor 11 is fixedly connected to the inner side wall of the protective shell 10, and a connecting shaft is fixedly connected to one end of the output end of the micro motor 11. The connecting shaft fixedly connected to the output end of the micro motor 11 is rotatably connected to the protective shell 10, so as to facilitate the release of the heat-resistant tube 12 by the operation of the micro motor 11.

[0026] As a further implementation of the above technical solution: the heat-resistant tube 12 is connected to the air supply tube 5 through the micro air pump 15, the heat-resistant tube 12 is wound with the connecting shaft fixedly connected to the output end of the micro motor 11, and the other end of the heat-resistant tube 12 is fixedly connected to the breathing mask 9, so as to facilitate the connection of the air supply tube 5 through the heat-resistant tube 12.

[0027] As a further implementation of the above technical solution: a controller 14 is fixedly connected to one side of the connecting block 17. The controller 14 is electrically connected to the smoke alarm 7, the smoke alarm 7 is electrically connected to the micro motor 11, the controller 14 is electrically connected to the micro air pump 15, and the controller 14 is electrically connected to the solenoid valve 13. The other side of the air supply pipe 5 is fixedly connected to one end of the suction nozzle 19. The suction nozzle 19 is connected to the air supply pipe 5, so that the relevant devices can be controlled by the controller 14.

[0028] As a further implementation of the above technical solution: the other end of the gas supply pipe 5 is fixedly connected to a base 6, the inner side of the base 6 is fixedly connected to a suction nozzle 19, the base 6 is slidably connected to a sliding block 18, the inner side of the base 6 is fixedly connected to an electric push rod 20, the output shaft of the electric push rod 20 is slidably connected to the base 6, and one end of the output shaft of the electric push rod 20 is fixedly connected to the bottom end of the sliding block 18, so that the sliding plate can be moved by the operation of the electric push rod 20.

[0029] Working principle:

[0030] When using this invention, firstly, when a fire occurs indoors and generates a large amount of smoke, the smoke detector 7 installed inside the exhaust pipe 1 will detect the smoke and send a signal to the controller 14. The controller 14 then activates the solenoid valve 13 and the micro air pump 15. One end of the solenoid valve 13 is fixed with an air supply pipe 5, and the other end of the air supply pipe 5 is fixedly connected to the base 6. The base 6 has a suction nozzle 19 installed inside, and the other end of the air supply pipe 5 is connected to the suction nozzle 19. One part of the air supply pipe 5 is located inside the exhaust pipe 1, and the other part is buried underground outdoors. The base 6 is also fixed outdoors. When the solenoid valve 13 opens, the electric push rod 20 installed inside the base 6 can be activated manually or remotely. The extension of the electric push rod 20 causes the sliding block 18 fixed at one end of the output end of the electric push rod 20 to move upward and disengage from the base 6. Then, the micro air pump 15 is activated. The operation of the micro air pump 15 causes the suction nozzle 19 at one end of the air supply pipe 5 to draw in fresh air from outside. The gas is supplied through the gas delivery pipe 5 to the solenoid valve 13, then through the solenoid valve 13 to the connecting block 17, and finally to the heat-resistant pipe 12 fixed at the bottom of the connecting block 17. The heat-resistant pipe 12 is wound around the output shaft fixed to the output end of the micro motor 11 located inside the protective shell 10. By starting the micro motor 11, the output shaft of the micro motor 11 is rotated, which in turn releases the heat-resistant pipe 12 wound around the output shaft. The other end of the heat-resistant pipe 12 is fixed to the breathing mask 9, and the bottom end of the breathing mask 9 is fixed to... The base plate 8 is fixed in place. Then, the dual-axis motor 16 is started. The operation of the dual-axis motor 16 drives the isolation plate 4 to release the blockage of the connecting pipe 3, so that the base plate 8 can move downward through the connecting pipe 3. At this time, the user crawling on the ground can remove the breathing mask 9 fixed on the base plate 8 and put it on his head. He can get fresh air through the breathing mask 9 and avoid carbon monoxide poisoning due to long-term exposure to dense smoke. The exhaust pipe 1 is also fixed with an exhaust auxiliary pipe 2 to better exhaust dense smoke.

[0031] In this utility model, the micro motor 11, solenoid valve 13, dual-axis motor 16 and other components are all existing technologies, and their working principle is consistent with that of similar products on the market, so they will not be described in detail here.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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. A smoke exhaust device for intelligent fire protection engineering, comprising a smoke exhaust pipe (1), characterized in that: The top end of the exhaust pipe (1) is fixedly connected to the exhaust pipe (2), the bottom end of the exhaust pipe (1) is fixedly connected to the connecting pipe (3), the bottom end of the connecting pipe (3) is in contact with the isolation plate (4), the inner side of the exhaust pipe (1) is fixedly connected to the protective shell (10), the left and right sides of the protective shell (10) are spirally connected to the solenoid valve (13), the inner side of the exhaust pipe (1) is provided with the gas supply pipe (5), the top end of the inner side of the exhaust pipe (1) is fixedly connected to the smoke alarm (7), the top end of the inner side of the exhaust pipe (1) is fixedly connected to the connecting block (17), the bottom end of the connecting block (17) is fixedly connected to the heat-resistant pipe (12), the left and right sides of the connecting block (17) are fixedly connected to the miniature air pump (15), the bottom end of the protective shell (10) is in contact with the base plate (8), and the top end of the base plate (8) is fixedly connected to the breathing mask (9).

2. The smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: A dual-axis motor (16) is fixedly connected to the bottom end of the connecting pipe (3). The two ends of the output end of the dual-axis motor (16) are fixedly connected to the isolation plate (4). The isolation plate (4) is rotatably connected to the connecting pipe (3) through the dual-axis motor (16).

3. The smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: One end of the gas supply pipe (5) is fixedly connected to the air inlet end of the solenoid valve (13). The gas supply pipe (5) is connected to the solenoid valve (13). The gas supply end of the solenoid valve (13) is fixedly connected to the air inlet end of the micro air pump (15). The gas supply end of the micro air pump (15) is fixedly connected to the connecting block (17). The heat-resistant pipe (12) is connected to the connecting block (17).

4. A smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: A micro motor (11) is fixedly connected to the inner side wall of the protective shell (10). One end of the output end of the micro motor (11) is fixedly connected to a connecting shaft. The connecting shaft fixedly connected to the output end of the micro motor (11) is rotatably connected to the protective shell (10).

5. A smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: The heat-resistant tube (12) is connected to the air supply tube (5) through the micro air pump (15). The heat-resistant tube (12) is wound around the connecting shaft that is fixedly connected to the output end of the micro motor (11). The other end of the heat-resistant tube (12) is fixedly connected to the breathing mask (9).

6. A smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: A controller (14) is fixedly connected to one side of the connecting block (17). The controller (14) is electrically connected to the smoke alarm (7). The smoke alarm (7) is electrically connected to the micro motor (11). The controller (14) is electrically connected to the micro air pump (15). The controller (14) is electrically connected to the solenoid valve (13). The other side of the air supply pipe (5) is fixedly connected to one end of the suction nozzle (19). The suction nozzle (19) is connected to the air supply pipe (5).

7. A smoke exhaust device for intelligent fire protection engineering according to claim 1, characterized in that: The other end of the gas delivery pipe (5) is fixedly connected to a base (6), and a suction nozzle (19) is fixedly connected to the inner side of the base (6). A sliding block (18) is slidably connected to the base (6), and an electric push rod (20) is fixedly connected to the inner side of the base (6). The output shaft of the electric push rod (20) is slidably connected to the base (6), and one end of the output shaft of the electric push rod (20) is fixedly connected to the bottom end of the sliding block (18).