Intelligent ventilation linkage

By designing an intelligent ventilation linkage device, utilizing micro fans, photovoltaic power generation modules, and cooling components, the problem of fans stopping operation under high-temperature smoke was solved, achieving rapid response and continuous exhaust, thus ensuring the effectiveness and safety of fire rescue.

CN224498674UActive Publication Date: 2026-07-14GUANGZHOU YONGHE AGRICULTURAL TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521437426.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2026-07-14
Estimated Expiration
2035-07-10

AI Technical Summary

Technical Problem

Under high-temperature smoke conditions, the fans of existing intelligent smoke detectors and ventilation linkage devices are prone to overheating and stopping, failing to effectively remove smoke, which affects fire rescue and indoor evacuation, and increases the risk of fire spread.

Method used

An intelligent ventilation linkage device was designed, including a micro fan, a photovoltaic power generation module, a dustproof component, and a cooling component. The micro fan accelerates airflow, the photovoltaic power generation module provides continuous power, the dustproof component automatically detaches at high temperatures, and the cooling component uses fire water supply pipes to spray and cool the flue gas, ensuring the stability and efficiency of the exhaust system.

Benefits of technology

It significantly shortens the fire warning response time, improves the reliability of fire prevention, ensures the continuity and safety of the ventilation system, reduces dependence on external power supply, and improves the efficiency and safety of fire rescue.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224498674U_ABST
    Figure CN224498674U_ABST
Patent Text Reader

Abstract

The utility model relates to a ventilation equipment technical field, and disclose an intelligent ventilation linkage device, including the exhaust fan of wind pipe and wind pipe inside installation, the one end of wind pipe is inclined downward setting, and the bottom fixed communication of one end of wind pipe has monitoring pipe. This kind of intelligent ventilation linkage device, through the collaborative design of micro fan and monitoring pipe, initiatively accelerates the airflow flow around the wind pipe entrance, makes smoke concentration sensor can more quickly, accurately capture smoke signal, compared with traditional passive monitoring mode, significantly shortens the fire early warning response time, simultaneously, the axis alignment structure of monitoring pipe and micro fan ensures airflow directional flow, avoids monitoring blind area, further improves the reliability of fire prevention, and photovoltaic power generation module is powered for micro fan, realizes the self -sufficiency of clean energy, reduces the dependence on external power grid, reduces operating energy consumption.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, specifically to an intelligent ventilation linkage device. Background Technology

[0002] With the increasing use of fire and electricity in modern households, the frequency of household fires is rising. Once a household fire occurs, factors such as delayed firefighting, lack of fire extinguishers, panic among those present, and slow escape can easily lead to significant loss of life and property. The main cause of household fires is complacency and failure to take timely preventative measures.

[0003] An existing patent (publication number: CN208521422U) discloses an intelligent smoke detector and ventilation linkage device, including an outer frame. The lower end of the outer frame is fixedly connected to the upper surface of a bottom cover. The lower surface of the bottom cover is connected to the air inlet of a ventilation duct. The rear side of the bottom cover is connected to a power plug via a wire. A U-shaped grid plate is fixedly installed on the upper surface of the outer frame. A pad is fixedly installed in the center of the grid plate, and an intelligent smoke detector is installed on the surface of the pad. This utility model sets an ionization sensor in the inner layer of the air permeability detection port. When a fire or gas leak occurs, a buzzer will sound an alarm, and an indicator light will flash red. The user at home can receive a warning notification from the smoke detector on their mobile phone or other terminal. The indoor ventilation system is linked with the alarm, and the fan and the exhaust fan of the ventilation system will operate simultaneously to exchange indoor and outdoor air.

[0004] However, when a fire occurs, the high temperature of the smoke produced by combustion can damage components such as fan motors in the ventilation system if the hot smoke enters the ventilation duct directly. This may cause the fans to stop operating due to overheating, making it impossible to effectively expel the hot smoke outdoors, which will affect fire rescue and the evacuation of people indoors, and also increase the risk of the fire spreading further. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an intelligent ventilation linkage device that has advantages such as high-temperature flue gas cooling protection and linkage and collaborative operation, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent ventilation linkage device, including a duct and an exhaust fan installed inside the duct. One end of the duct is inclined downwards, and a monitoring tube is fixedly connected to the bottom of one end of the duct. A miniature fan is installed at the bottom of the monitoring tube, and the miniature fan and the monitoring tube are on the same axis. A smoke concentration sensor is installed inside the monitoring tube.

[0007] A power generation component is installed above the inclined end of the air duct;

[0008] The inclined end of the air duct is equipped with a dustproof component;

[0009] The duct is equipped with a cooling component for cooling the flue gas.

[0010] Furthermore, the outer surface of the duct is fixedly connected to two anchor plates, and the outer surface of each anchor plate is provided with a set of fixing holes to facilitate connection and fixation with the external inner and outer walls.

[0011] With the above solution, the fixing holes can be used to securely connect the anchor plate to the wall with bolts and other fasteners, ensuring the duct installation is firm and preventing shaking or displacement during use.

[0012] Furthermore, both the air duct and the anchor plate are made of high-strength aluminum alloy, and the outer surface of the air duct is provided with a heat insulation pad.

[0013] Through the above solution, the heat insulation pad can prevent the heat from the air duct from being transferred to the wall. The high-strength aluminum alloy material has the advantages of being lightweight, high-strength, and corrosion-resistant, making it suitable for making air ducts and anchor plates. The heat insulation pad can effectively prevent the high-temperature heat inside the air duct from being transferred to the wall, preventing the wall from igniting due to overheating.

[0014] Furthermore, the power generation component includes two support frames, the bottom ends of which are fixedly connected to the upper surface of the inclined end of the duct, and a photovoltaic power generation module is installed at the top of the two support frames. The photovoltaic power generation module is electrically connected to the micro wind turbine.

[0015] Through the above scheme, the support frame securely installs the photovoltaic power generation module on the upper surface of the inclined end of the duct. The photovoltaic power generation module generates electricity under sunlight and transmits the electricity to the micro wind turbine, providing continuous power support for the operation of the micro wind turbine, reducing dependence on external power sources, and achieving energy conservation and environmental protection.

[0016] Furthermore, the dustproof component includes two guide rails, which are respectively installed on both sides of the inclined end of the air duct. The two guide rails are slidably connected to the same dustproof net. One side of the dustproof net abuts against one end of the air duct. A set of fixing posts are fixedly connected to the inner wall of the air duct. A set of fusible ropes are fixedly connected to the outer surface of the fixing posts. The other end of each fusible rope is fixedly connected to the dustproof net, and each fusible rope is in a taut state.

[0017] The above solution allows the guide rail to slide along it, and the fusible rope remains taut, ensuring that the dustproof net stays in contact with one end of the duct under normal conditions, effectively blocking external dust from entering the room.

[0018] Furthermore, each of the aforementioned fusible cords is made of heat-sensitive nylon material.

[0019] With the above scheme, the melting point is set at 80-120℃. When a fire occurs, the high temperature gas can cause the fusible rope to melt and break, thereby releasing the dustproof net and allowing it to slide along the guide rail to the bottom, improving the efficiency of smoke passage inside the duct.

[0020] Furthermore, the cooling component includes a rectangular tube, which is fixedly connected to the inner wall of the air duct. A water supply pipe is fixedly connected to the bottom end of the rectangular tube. A solenoid valve is installed at the inlet of the water supply pipe. A set of nozzles arranged in a matrix are fixedly connected to the outer surface of the rectangular tube. The inlet of the water supply pipe is connected to an external fire water supply pipeline. The water supply pipe is fixedly connected to two anchor plates.

[0021] With the above scheme, when the smoke concentration sensor detects that the smoke concentration exceeds the standard and a fire may occur, the solenoid valve opens, and water in the fire water supply pipeline enters the rectangular pipe through the water delivery pipe to cool the smoke in the duct, reduce the smoke temperature, and reduce damage to the exhaust fan. At the same time, the anchor plate provides fixed support for the water delivery pipe to ensure the stability of the water delivery pipe.

[0022] Furthermore, the solenoid valve is connected to an external fire control system.

[0023] With the above scheme, when the smoke concentration sensor detects that the smoke concentration has reached the preset threshold, the fire control system synchronously sends an opening command to the solenoid valve to realize the automatic start of the cooling component and ensure the real-time coordination of high-temperature flue gas cooling and ventilation operations.

[0024] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0025] This invention, through the collaborative design of a micro fan and a monitoring tube, actively accelerates the airflow around the duct inlet, enabling the smoke concentration sensor to capture smoke signals more quickly and accurately. Compared with traditional passive monitoring methods, this significantly shortens the fire early warning response time. At the same time, the axial alignment structure of the monitoring tube and the micro fan ensures directional airflow, avoids monitoring blind spots, and further improves the reliability of fire prevention. The photovoltaic power generation module powers the micro fan, achieving self-sufficiency in clean energy, reducing dependence on the external power grid, and lowering operating energy consumption.

[0026] The dustproof component, through a combination of a sliding dustproof net and a heat-sensitive fusible rope, effectively blocks dust from entering the room under normal conditions, ensuring air quality. In the event of a fire, high-temperature smoke triggers the fusible rope to break, causing the dustproof net to automatically detach, eliminating exhaust resistance and ensuring efficient exhaust of high-temperature smoke. This design addresses both daily dust prevention and emergency smoke extraction needs, enhancing the practicality of the device. The cooling component uses a rectangular pipe to spray fire-fighting water, directly cooling the smoke inside the duct, significantly reducing the smoke temperature and preventing exhaust fans from being damaged by overheating. This ensures the continuity of fire ventilation operations. The solenoid valve is linked to the fire control system, automatically activating when smoke levels exceed limits, ensuring coordinated ventilation and cooling operations and buying valuable time for fire rescue. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0030] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0031] Figure 3 This is a sectional view of the front view of the duct structure in this application;

[0032] Figure 4 This is a front view of the duct structure in this application;

[0033] Figure 5 This is a structural diagram of the power generation component of this application;

[0034] Figure 6 This is a structural diagram of the dustproof component of this application;

[0035] Figure 7 This is a structural diagram of the cooling component in this application.

[0036] In the picture:

[0037] 1. Air duct; 101. Thermal insulation pad;

[0038] 2. Exhaust fan; 3. Monitoring tube; 4. Miniature fan; 5. Smoke concentration sensor;

[0039] 6. Power generation components; 601. Support frame; 602. Photovoltaic power generation module;

[0040] 7. Dustproof components; 701. Guide rail; 702. Dustproof net; 703. Fixing post; 704. Fusible rope;

[0041] 8. Cooling component; 801. Rectangular tube; 802. Water supply pipe; 803. Solenoid valve; 804. Nozzle;

[0042] 9. Anchor plate; 901. Fixing hole. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of an intelligent ventilation linkage device includes a duct 1 and an exhaust fan 2 installed inside the duct 1. One end of the duct 1 is inclined downwards, which can effectively prevent rainwater from entering the duct 1 and flowing into the room. A monitoring tube 3 is fixedly connected to the bottom of one end of the duct 1. A miniature fan 4 is installed at the bottom of the monitoring tube 3. The miniature fan 4 and the monitoring tube 3 are on the same axis. A smoke concentration sensor 5 is installed inside the monitoring tube 3. Through the arrangement of the miniature fan 4 and the monitoring tube 3, compared with the traditional smoke concentration sensor 5 passively contacting the smoke, the miniature fan 4 can accelerate the flow of surrounding air, thereby improving the monitoring sensitivity of the smoke concentration sensor 5 and improving the fire prevention response efficiency. The smoke concentration sensor 5 is connected to the external fire control system.

[0045] Please see Figure 1 , Figure 2 and Figure 4 Both the duct 1 and the anchor plate 9 are made of high-strength aluminum alloy. The outer surface of the duct 1 is provided with a heat insulation pad 101. The heat insulation pad 101 can isolate the heat of the duct 1 from the wall. The high-strength aluminum alloy material has the advantages of light weight, high strength and corrosion resistance, and is suitable for making the duct 1 and the anchor plate 9. The heat insulation pad 101 can effectively prevent the high temperature heat inside the duct 1 from being transferred to the wall and prevent the wall from igniting due to overheating.

[0046] Please see Figure 1 , Figure 3 and Figure 5Two anchor plates 9 are fixedly connected to the outer surface of the duct 1. Each anchor plate 9 has a set of fixing holes 901 on its outer surface for easy connection and fixation to the interior or exterior walls. Through the fixing holes 901, bolts or other fasteners can be used to securely connect the anchor plates 9 to the wall, ensuring the duct 1 is firmly installed and preventing shaking or displacement during use. A power generation component 6 is installed above the inclined end of the duct 1. This component enables photovoltaic power generation and storage, providing power for the continuous operation of the micro-wind turbine 4 and reducing energy waste. The power generation component 6 includes two support frames 601. The bottom ends of the two support frames 601 are fixedly connected to the upper surface of the inclined end of the duct 1. A photovoltaic power generation module 602 is installed on the top of the two support frames 601. The photovoltaic power generation module 602 is electrically connected to the micro wind turbine 4. The photovoltaic power generation module 602 is stably installed on the upper surface of the inclined end of the duct 1 through the support frames 601. The photovoltaic power generation module 602 generates electricity under sunlight and transmits the electrical energy to the micro wind turbine 4, providing continuous power support for the operation of the micro wind turbine 4, reducing dependence on external power sources, and achieving energy conservation and environmental protection.

[0047] Please see Figure 1 , Figure 4 and Figure 6 A dustproof component 7 is installed at the inclined end of the duct 1. The dustproof component 7 effectively prevents external dust from entering the room. The dustproof component 7 includes two guide rails 701, which are respectively installed on both sides of the inclined end of the duct 1. The two guide rails 701 are slidably connected to the same dustproof net 702. One side of the dustproof net 702 abuts against one end of the duct 1. A set of fixing posts 703 are fixedly connected to the inner wall of the duct 1. A set of fusible ropes 704 are fixedly connected to the outer surface of the fixing posts 703. The other end of each fusible rope 704 is fixedly connected to the dustproof net 702. Each fusible rope 704 is in a taut state. The dustproof net 702 can slide along the guide rails 701. The fusible ropes 704 are in a taut state, which ensures that the dustproof net 702 maintains a state of contact with one end of the duct 1 under normal circumstances, effectively blocking external dust from entering the room.

[0048] Please see Figure 1 , Figure 3 and Figure 7Each fusible cord 704 is made of heat-sensitive nylon material with a melting point of 80-120℃. When a fire occurs, the high-temperature gas causes the fusible cord 704 to melt and break, releasing the dustproof net 702. The dustproof net 702 then slides along the guide rail 701 to the bottom, improving the efficiency of smoke passage inside the duct 1. The duct 1 is equipped with a cooling component 8 for cooling the smoke. This cooling component 8 effectively reduces the impact on the exhaust fan 2, ensuring continuous discharge of the high-temperature gas generated by combustion. The cooling component 8 includes a rectangular tube 801, which is fixedly connected to the inner wall of the duct 1. A water supply pipe 802 is fixedly connected to the bottom end of the rectangular tube 801. A solenoid valve 803 is installed at the inlet of the water supply pipe 802. A set of... The nozzles 804 are arranged in a matrix. The inlet of the water supply pipe 802 is connected to the external fire water supply pipe. The water supply pipe 802 is fixedly connected to two anchor plates 9. When the smoke concentration sensor 5 detects that the smoke concentration exceeds the standard and a fire may occur, the solenoid valve 803 opens. Water from the fire water supply pipe enters the rectangular pipe 801 through the water supply pipe 802 to cool the smoke in the duct 1, reduce the smoke temperature, and reduce damage to the exhaust fan 2. At the same time, the anchor plates 9 provide fixed support for the water supply pipe 802 to ensure its stability. The solenoid valve 803 is connected to the external fire control system. When the smoke concentration sensor 5 detects that the smoke concentration reaches the preset threshold, the fire control system synchronously sends an opening command to the solenoid valve 803 to realize the automatic start of the cooling component 8 and ensure the real-time coordination of high-temperature smoke cooling and exhaust operation.

[0049] It should be noted that the anchor plate fixing holes use M8 thread specifications, which are compatible with most wall expansion bolts.

[0050] The working principle of the above embodiment is as follows: Under normal conditions, when ventilation is required, the exhaust fan 2 inside the duct 1 operates, drawing in indoor air through one end of the duct 1 and expelling it outdoors, thus achieving basic ventilation. The inclined design at one end of the duct 1 effectively prevents rainwater from flowing into the room. The dustproof net 702 of the dustproof component 7 is tightly attached to the port of the duct 1 under the taut traction of the fusible rope 704, blocking external dust from entering the room and ensuring clean air. The photovoltaic power generation module 602 of the power generation component 6 generates electricity under sunlight conditions, providing continuous power to the micro fan 4 and reducing dependence on external power sources. When a small amount of smoke is generated in the early stage of a fire, the micro fan 4 continuously and rapidly draws the surrounding air into the monitoring tube 3, causing the smoke to quickly contact the smoke concentration sensor 5. After the smoke concentration sensor 5 detects that the smoke concentration exceeds the standard, it sends a signal to the external fire control system. The fire control system simultaneously starts the exhaust fan 2 to strengthen ventilation and triggers the buzzer or links the user terminal. An alarm is triggered. As the fire intensifies, high-temperature smoke enters duct 1. The fusible rope 704 of the dustproof component 7, made of heat-sensitive nylon with a melting point of 80-120℃, melts when heated. After the fusible rope 704 breaks, the dustproof net 702 loses its traction and slides along the guide rail 701 to the bottom, fully opening the port of duct 1 and eliminating smoke exhaust resistance. The exhaust fan 2 operates at full capacity without obstruction, quickly exhausting the high-temperature smoke outdoors, buying time for the evacuation of people indoors and for fire fighting. After the smoke concentration sensor 5 triggers the fire control system, the solenoid valve 803 opens simultaneously. Water from the fire water supply pipeline is delivered to the rectangular pipe 801 through the water supply pipe 802. The rectangular pipe 801 sprays water evenly onto the high-temperature smoke in duct 1, reducing the smoke temperature through heat exchange and preventing the exhaust fan 2 from being damaged due to overheating. The cooling component 8 is linked with the exhaust fan 2 to ensure continuous cooling of the smoke during the smoke exhaust process, ensuring the stability of the exhaust system.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An intelligent ventilation linkage device, comprising a duct (1) and an exhaust fan (2) installed inside the duct (1), characterized in that: One end of the duct (1) is inclined downwards, and a monitoring tube (3) is fixedly connected to the bottom of one end of the duct (1). A miniature fan (4) is installed at the bottom of the monitoring tube (3). The miniature fan (4) and the monitoring tube (3) are on the same axis. A smoke concentration sensor (5) is installed inside the monitoring tube (3). A power generation component (6) is provided above the inclined end of the air duct (1). The inclined end of the air duct (1) is provided with a dustproof component (7). The duct (1) is equipped with a cooling component (8) for cooling the flue gas.

2. The intelligent ventilation linkage device according to claim 1, characterized in that: The outer surface of the air duct (1) is fixedly connected to two anchor plates (9), and the outer surface of the two anchor plates (9) is provided with a set of fixing holes (901) to facilitate connection and fixation with the outer and inner walls.

3. The intelligent ventilation linkage device according to claim 1, characterized in that: Both the air duct (1) and the anchor plate (9) are made of high-strength aluminum alloy, and the outer surface of the air duct (1) is provided with a heat insulation pad (101).

4. The intelligent ventilation linkage device according to claim 1, characterized in that: The power generation component (6) includes two support frames (601), the bottom ends of the two support frames (601) are fixedly connected to the upper surface of the inclined end of the air duct (1), and a photovoltaic power generation module (602) is installed at the top of the two support frames (601). The photovoltaic power generation module (602) is electrically connected to the micro fan (4).

5. The intelligent ventilation linkage device according to claim 1, characterized in that: The dustproof component (7) includes two guide rails (701), which are respectively installed on both sides of the inclined end of the air duct (1). The two guide rails (701) are slidably connected to the same dustproof net (702). One side of the dustproof net (702) abuts against one end of the air duct (1). A set of fixing columns (703) is fixedly connected to the inner wall of the air duct (1). A set of fusible ropes (704) is fixedly connected to the outer surface of the fixing columns (703). The other end of each fusible rope (704) is fixedly connected to the dustproof net (702). Each fusible rope (704) is in a taut state.

6. The intelligent ventilation linkage device according to claim 5, characterized in that: Each of the aforementioned fusible cords (704) is made of thermosensitive nylon material.

7. The intelligent ventilation linkage device according to claim 2, characterized in that: The cooling component (8) includes a rectangular tube (801), which is fixedly connected to the inner wall of the air duct (1). The bottom end of the rectangular tube (801) is fixedly connected to a water supply pipe (802). The inlet of the water supply pipe (802) is equipped with a solenoid valve (803). The outer surface of the rectangular tube (801) is fixedly connected to a set of nozzles (804) arranged in a matrix. The inlet of the water supply pipe (802) is connected to an external fire water supply pipe. The water supply pipe (802) is fixedly connected to two anchor plates (9).

8. The intelligent ventilation linkage device according to claim 7, characterized in that: The solenoid valve (803) is connected to an external fire control system.

Citation Information

Patent Citations

  • Intelligence smoke alarm and ventilation aggregate unit

    CN208521422U