Air speed adjusting device of intelligent air bellow mute exhaust fan

Abstract

The utility model relates to the technical field of air speed adjustment of exhaust fans, and discloses an air speed adjusting device of an intelligent air bellow mute exhaust fan, which comprises an air supply mechanism used for conveying airflow, and four air speed adjusting mechanisms used for controlling air speed are arranged on one side of the air supply mechanism. A supporting assembly used for supporting the four air speed adjusting mechanisms is arranged on the outer sides of the four air speed adjusting mechanisms, a driving mechanism used for controlling the four air speed adjusting mechanisms to be opened and closed is arranged in the center of the side, close to the air supply mechanism, of the supporting assembly, the supporting assembly stabilizes the installation positions of the air speed adjusting mechanisms, and the stability and durability of the system are ensured. The air speed adjusting mechanism achieves independent adjustment of the air speed through opening and closing petals, the opening and closing amplitude of the air speed adjusting mechanism is controlled through a positioning bolt and a limiting pin, the accuracy of airflow distribution is ensured, and the driving mechanism achieves accurate control over the air speed adjusting mechanism through cooperation of a servo motor and a driving gear. And flexible adjustment of each adjusting mechanism under different requirements is ensured.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fan speed adjustment technology, specifically to an intelligent air box silent exhaust fan with adjustable wind speed device. Background Technology

[0002] A bellows-type silent exhaust fan is a device specifically designed for ventilation systems. It aims to effectively reduce noise while ensuring airflow, combining a bellows and silent technology. Typically used in places requiring a quiet environment, such as offices, hospitals, and laboratories, the bellows section reduces airflow noise by increasing the cross-sectional area of ​​the airflow channel. The silent exhaust fan further reduces noise through optimized structural design, the use of low-noise materials, and the addition of sound insulation layers. This type of exhaust fan design not only emphasizes ventilation but also noise control, providing a quieter working or living environment while ensuring proper ventilation. Bellows-type silent exhaust fans are widely used in various locations requiring low noise levels and are characterized by energy saving, low noise, and high efficiency.

[0003] Traditional bellows-type silent exhaust fans in the prior art have certain limitations in adjusting airflow speed, especially in the independent adjustment of multiple air outlet positions. They cannot achieve precise individual control, and the design of most traditional exhaust fans results in almost identical airflow speeds at all outlets, making it impossible to independently adjust the airflow speed of each outlet according to actual needs. This design deficiency means that the ventilation effect of the fan may not be evenly distributed in some places, especially in environments requiring fine-tuning of ventilation volume. For example, stronger airflow speeds may be needed in some special areas or near equipment to ensure effective exhaust, while lower airflow speeds are needed in other areas to avoid excessive airflow interference or energy waste. However, because traditional bellows-type silent exhaust fans cannot independently adjust the airflow speed of each outlet, they cannot meet the specific needs of different areas. Furthermore, uneven airflow speeds may cause poor air quality or uneven temperature in some areas, further affecting spatial comfort and work efficiency, and may even lead to energy waste. Therefore, those skilled in the art provide an intelligent bellows-type silent exhaust fan with adjustable airflow speed to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent bellows-type silent exhaust fan with adjustable wind speed, solving the limitations of traditional bellows-type silent exhaust fans in adjusting wind speed, especially in the independent adjustment of multiple air outlets. Precise individual control is not possible, as most traditional exhaust fans are designed with almost identical wind speeds at all outlets, making it impossible to independently adjust the wind speed of each outlet according to actual needs. This design deficiency results in uneven ventilation in some locations, especially in environments requiring precise ventilation adjustment. For example, stronger wind speeds may be needed in certain areas or near equipment to ensure effective exhaust, while lower wind speeds are needed in other areas to avoid excessive airflow interference or energy waste. However, traditional bellows-type silent exhaust fans cannot independently adjust the wind speed of each outlet, failing to meet the specific needs of different areas. Furthermore, uneven wind speeds may cause poor air quality or uneven temperature in some areas, further affecting spatial comfort and work efficiency, and even potentially leading to energy waste.

[0005] This utility model provides the following technical solution: an intelligent air box silent exhaust fan with adjustable wind speed device, including an air supply mechanism for conveying airflow, four wind speed adjustment mechanisms for controlling wind speed are provided on one side of the air supply mechanism, a support component for supporting the four wind speed adjustment mechanisms is provided on the outside of the four wind speed adjustment mechanisms, and a drive mechanism for controlling the opening and closing of the four wind speed adjustment mechanisms is provided at the center of the support component near the air supply mechanism.

[0006] As a preferred embodiment of the above technical solution, the air supply mechanism includes a lower air shroud, an air inlet hole is provided through the lower center of the lower air shroud, an upper air shroud is fixedly connected to the upper center of the lower air shroud near the edge by bolts, and a support steel ring is fixedly sleeved at the center of the upper air shroud.

[0007] As a preferred embodiment of the above technical solution, an AC motor is fixedly connected to the upper end of the supporting steel ring, the lower rotating end of the AC motor is located between the lower and upper wind-gathering hoods, and a wind wheel is fixedly connected to the outer side of the lower rotating end of the AC motor. The wind wheel is rotatably sleeved inside the lower and upper wind-gathering hoods, and a wind guide hood is fixedly sleeved on one side of the lower and upper wind-gathering hoods.

[0008] As a preferred embodiment of the above technical solution, the support assembly includes a support plate, which is fixedly sleeved inside the wind guide shroud on the side away from the wind turbine. The support plate has mounting holes through the center of the interior at the four opposite corners.

[0009] As a preferred embodiment of the above technical solution, the wind speed adjustment mechanism includes a support ring, which is fixedly sleeved inside the mounting hole. An air outlet connecting pipe is fixedly connected to the center of the side of the support ring away from the lower wind shroud. An opening and closing limiting frame is fixedly connected to the center of the side of the support ring away from the air outlet connecting pipe near the edge. Multiple internal threaded holes are arranged in a ring and penetrate through the center of the support ring near the edge.

[0010] As a preferred embodiment of the above technical solution, each of the multiple internal threaded holes is threaded with a positioning bolt, and a limiting disc is fitted on the outside of the multiple positioning bolts. The multiple positioning bolts are rotatably fitted inside the limiting disc. Multiple opening and closing petals are arranged in a ring inside the opening and closing limiting frame. Each of the multiple opening and closing petals has a through hole at one end, and the multiple through holes are rotatably fitted on the outside of the multiple positioning bolts.

[0011] As a preferred embodiment of the above technical solution, each of the multiple opening and closing petals is fixedly connected to a limiting pin at one end near the center of the limiting disk. A transmission ring is provided between the limiting disk and the opening and closing limiting frame. The transmission ring is rotatably sleeved on the outside of multiple positioning bolts. Multiple limiting slots are arranged in a ring near the edge of the transmission ring. The multiple limiting pins are slidably sleeved in the multiple limiting slots. A transmission external gear ring is fixedly sleeved on the outside of the transmission ring.

[0012] As a preferred embodiment of the above technical solution, the driving mechanism includes four positioning strips fixedly connected to the center of the support plate near the air guide shroud. A support plate is fixedly connected to the side of the four positioning strips away from the support plate. A servo motor is fixedly connected to the center of the side of the support plate away from the four positioning strips at four diagonal points. The output end of the servo motor passes through the support plate, and a drive gear is fixedly connected to the output end of each of the four servo motors. The four drive gears mesh with the gears of the four external transmission gear rings respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This intelligent airbox silent exhaust fan achieves efficient airflow regulation and wind speed control through the coordinated action of the aforementioned components. The air supply mechanism generates stable airflow through the coordinated operation of the impeller and AC motor, while the support components stabilize the installation position of the wind speed regulation mechanism, ensuring the stability and durability of the system.

[0015] The wind speed adjustment mechanism achieves independent wind speed adjustment by opening and closing the petals, and controls its opening and closing range through positioning bolts and limit pins to ensure the accuracy of airflow distribution. The drive mechanism achieves precise control of the wind speed adjustment mechanism through the cooperation of servo motors and drive gears, ensuring flexible adjustment of each adjustment mechanism under different needs. Through the above design, this exhaust system can provide uniform and precise wind speed adjustment with low noise, solving the problems of wind speed not being able to be adjusted independently and uneven airflow in traditional systems, improving ventilation efficiency and reducing energy waste. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an intelligent air box silent exhaust fan with adjustable wind speed device;

[0017] Figure 2 This is a three-dimensional structural diagram of an intelligent air box silent exhaust fan with adjustable wind speed from another perspective.

[0018] Figure 3 A three-dimensional disassembled structural diagram of an adjustable wind speed device for an intelligent air box silent exhaust fan;

[0019] Figure 4 This is a three-dimensional disassembled structural diagram of an intelligent air box silent exhaust fan with adjustable wind speed, taken from another perspective.

[0020] Figure 5 A three-dimensional disassembled structural diagram of the air supply mechanism;

[0021] Figure 6 A schematic diagram of the three-dimensional structure supporting the components;

[0022] Figure 7 This is a three-dimensional, disassembled structural diagram of the wind speed regulation mechanism;

[0023] Figure 8 A three-dimensional, disassembled structural diagram of the wind speed regulation mechanism from another perspective;

[0024] Figure 9 This is a schematic diagram of the three-dimensional disassembled structure of the drive mechanism.

[0025] Legend:

[0026] 1. Air supply mechanism; 101. Lower air concentrator; 102. Air inlet; 103. Upper air concentrator; 104. Supporting steel ring; 105. AC motor; 106. Wind wheel; 107. Air guide shroud; 2. Support assembly; 201. Support plate; 202. Mounting hole; 3. Wind speed adjustment mechanism; 301. Support ring; 302. Air outlet connecting pipe; 303. Opening and closing limit frame; 304. Internal threaded hole; 305. Positioning bolt; 306. Limiting plate; 307. Opening and closing petals; 308. Sleeve hole; 309. Limiting pin; 3010. Transmission ring; 3011. Limiting slot; 3012. Transmission external gear ring; 4. Drive mechanism; 401. Positioning strip; 402. Support plate; 403. Servo motor; 404. Drive gear. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figures 1-4 As shown, this utility model provides a technical solution: an intelligent air box silent exhaust fan with adjustable wind speed device, including an air supply mechanism 1 for conveying airflow, four wind speed adjustment mechanisms 3 for controlling wind speed are provided on one side of the air supply mechanism 1, a support component 2 for supporting the four wind speed adjustment mechanisms 3 is provided on the outside of the four wind speed adjustment mechanisms 3, and a drive mechanism 4 for controlling the opening and closing of the four wind speed adjustment mechanisms 3 is provided at the center of the support component 2 near the air supply mechanism 1.

[0029] This intelligent air-box silent exhaust fan achieves efficient airflow regulation and wind speed control through the coordinated action of the aforementioned components. The air supply mechanism 1 generates a stable airflow through the coordinated operation of the impeller 106 and the AC motor 105. The support component 2 stabilizes the installation position of the wind speed regulation mechanism 3, ensuring the stability and durability of the system. The wind speed regulation mechanism 3 achieves independent wind speed adjustment through the opening and closing of the petals 307, and its opening and closing range is controlled by the positioning bolts 305 and the limit pins 309, ensuring the accuracy of airflow distribution. The drive mechanism 4 achieves precise control of the wind speed regulation mechanism 3 through the cooperation of the servo motor 403 and the drive gear 404, ensuring flexible adjustment of each regulation mechanism under different needs. Through the above design, this exhaust system can provide uniform and precise wind speed regulation with low noise, solving the problems of wind speed not being able to be adjusted independently and uneven airflow in traditional systems, improving ventilation efficiency and reducing energy waste.

[0030] As one implementation method in this embodiment, please refer to Figure 5As shown, the air supply mechanism 1 includes a lower concentrator shroud 101. An air inlet 102 is provided through the lower center of the lower concentrator shroud 101. An upper concentrator shroud 103 is fixedly connected to the upper center of the lower concentrator shroud 101 near the edge by bolts. A support steel ring 104 is fixedly sleeved at the center of the upper concentrator shroud 103. An AC motor 105 is fixedly connected to the upper end of the support steel ring 104. The rotating end of the AC motor 105 is located between the lower concentrator shroud 101 and the upper concentrator shroud 103. A fan wheel 106 is fixedly connected to the outside of the rotating end of the AC motor 105. The fan wheel 106 is rotatably sleeved inside the lower concentrator shroud 101 and the upper concentrator shroud 103. An air guide shroud 107 is fixedly sleeved on one side of the lower concentrator shroud 101 and the upper concentrator shroud 103.

[0031] The air supply mechanism 1 is mainly responsible for delivering airflow to the exhaust system. The air supply mechanism 1 guides the airflow through the lower concentrator 101 and uses the AC motor 105 to drive the impeller 106 to rotate, thereby generating airflow. The rotation of the impeller 106 causes the air to be accelerated through the upper concentrator 103 and effectively introduced into the exhaust system. The design of the air supply mechanism 1 can ensure efficient airflow transmission. Due to the efficient operation of the impeller 106, it can provide strong airflow output while maintaining low noise. The air guide 107 further optimizes the airflow direction, making the airflow more stable and uniform, thereby achieving a good ventilation effect.

[0032] As one implementation method in this embodiment, please refer to Figure 6 As shown, the support assembly 2 includes a support plate 201, which is fixedly sleeved inside the air guide cover 107 on the side away from the wind wheel 106. The support plate 201 has mounting holes 202 through the center of the interior of the support plate 201 at the four opposite corners.

[0033] The support component 2 stabilizes the structure of the entire exhaust system through the support plate 201. The support plate 201 is fixed inside the air guide hood 107, which plays the role of supporting the wind speed adjustment mechanism 3 and maintaining its stability. By setting the mounting holes 202, the wind speed adjustment mechanism 3 can be accurately installed on the support plate 201, ensuring the symmetry and stability of each adjustment component. This structural design enhances the stability and durability of the system and prevents the wind speed adjustment mechanism 3 from changing position or malfunctioning due to external forces or vibrations.

[0034] As one implementation method in this embodiment, please refer to Figures 7-8As shown, the wind speed regulating mechanism 3 includes a support ring 301, which is fixedly sleeved inside the mounting hole 202. An air outlet connecting pipe 302 is fixedly connected to the center of the support ring 301 on the side away from the lower wind collector shroud 101. An opening / closing limiting frame 303 is fixedly connected to the edge of the center of the support ring 301 on the side away from the air outlet connecting pipe 302. Multiple internally threaded holes 304 are arranged in a ring around the edge of the support ring 301. Positioning bolts 305 are threaded into each of the multiple internally threaded holes 304. A limiting plate 306 is sleeved on the outside of the multiple positioning bolts 305, and the multiple positioning bolts 305 are rotatably sleeved inside the limiting plate 306. Multiple opening / closing limiting frames 303 are arranged in a ring inside the opening / closing limiting frame 303. Petal 307, multiple opening and closing petals 307, each with a through hole 308 at one end, the multiple through holes 308 are rotatably fitted onto the outside of multiple positioning bolts 305, each of the multiple opening and closing petals 307 is fixedly connected to a limiting pin 309 at one end near the center of the side of the limiting plate 306, a transmission ring 3010 is provided between the limiting plate 306 and the opening and closing limiting frame 303, the transmission ring 3010 is rotatably fitted onto the outside of multiple positioning bolts 305, multiple limiting slots 3011 are arranged in a ring at the center of the transmission ring 3010 near the edge, the multiple limiting pins 309 are slidably fitted into the multiple limiting slots 3011, and a transmission external gear ring 3012 is fixedly fitted onto the outside of the transmission ring 3010.

[0035] The wind speed adjustment mechanism 3 is responsible for adjusting the wind speed, ensuring that the airflow speed of each air outlet can be adjusted according to actual needs. The support ring 301 is fixed in the mounting hole 202, providing stable support and ensuring the accurate operation of the wind speed adjustment mechanism 3. The opening and closing limit frame 303 adjusts the ventilation volume of the air outlet by opening and closing multiple opening and closing petals 307. Each opening and closing petal 307 is connected to the positioning bolt 305 through the sleeve hole 308 and is positioned by the limit pin 309 and the limit plate 306. Through this precise mechanical structure, the wind speed adjustment mechanism 3 can achieve flexible wind speed adjustment, achieving the purpose of independently controlling the wind speed of each air outlet, avoiding uneven airflow and excessive energy waste.

[0036] As one implementation method in this embodiment, please refer to Figure 9 As shown, the drive mechanism 4 includes four positioning bars 401 fixedly connected to the center of the support plate 201 near the air guide shroud 107. A support plate 402 is fixedly connected to the side of the four positioning bars 401 away from the support plate 201. A servo motor 403 is fixedly connected to the center of the side of the support plate 402 away from the four positioning bars 401 at four diagonal points. The output end of the servo motor 403 passes through the support plate 402, and a drive gear 404 is fixedly connected to the output end of each of the four servo motors 403. The four drive gears 404 mesh with the gears of the four external transmission gear rings 3012 respectively.

[0037] The drive mechanism 4 controls the opening and closing degree of the wind speed adjustment mechanism 3 through the servo motor 403 and the drive gear 404, thereby achieving precise control of each wind speed adjustment mechanism 3. The servo motor 403 drives the drive gear 404 according to the preset control signal, so that the gear meshes with the transmission external gear ring 3012, driving the wind speed adjustment mechanism 3 to make corresponding adjustments. Through the precise operation of the four servo motors 403, the state of each wind speed adjustment mechanism 3 can be adjusted synchronously or independently, thereby achieving precise wind speed adjustment. This design can effectively improve the flexibility and response speed of wind speed control, and avoid the problem of inaccurate wind speed adjustment in traditional systems.

[0038] Working Principle: The air supply mechanism 1 is mainly responsible for delivering airflow to the exhaust system. The air supply mechanism 1 guides the airflow through the lower concentrator 101 and uses the AC motor 105 to drive the impeller 106 to rotate, thereby generating airflow. The rotation of the impeller 106 causes the air to be accelerated through the upper concentrator 103 and effectively guided into the exhaust system. The design of the air supply mechanism 1 ensures efficient airflow transmission, and due to the efficient operation of the impeller 106, it can provide strong airflow output while maintaining low noise. The air guide shroud 107 further optimizes the airflow direction, making the airflow more... The ventilation is more stable and uniform, thus achieving a good ventilation effect. The support component 2 stabilizes the structure of the entire exhaust system through the support plate 201. The support plate 201 is fixed inside the air guide hood 107, which plays the role of supporting the wind speed adjustment mechanism 3 and maintaining its stability. By setting the mounting holes 202, the wind speed adjustment mechanism 3 can be accurately installed on the support plate 201, ensuring the symmetry and stability of each adjustment component. This structural design enhances the stability and durability of the system and prevents the wind speed adjustment mechanism 3 from changing position or malfunctioning due to external forces or vibrations.

[0039] The wind speed regulating mechanism 3 is responsible for regulating the wind speed, ensuring that the airflow speed of each air outlet can be adjusted according to actual needs. The support ring 301 is fixed in the mounting hole 202, providing stable support and ensuring the accurate operation of the wind speed regulating mechanism 3. The opening and closing limit frame 303 adjusts the ventilation volume of the air outlet by opening and closing multiple opening and closing petals 307. Each opening and closing petal 307 is connected to the positioning bolt 305 through the sleeve hole 308 and is positioned by the limit pin 309 and the limit plate 306. Through this precise mechanical structure, the wind speed regulating mechanism 3 can achieve flexible wind speed regulation, achieving the purpose of independently controlling the wind speed of each air outlet, avoiding uneven airflow and excessive airflow. To minimize energy waste, the drive mechanism 4 controls the opening and closing degree of the wind speed adjustment mechanism 3 through the servo motor 403 and the drive gear 404, thereby achieving precise control of each wind speed adjustment mechanism 3. The servo motor 403 drives the drive gear 404 according to the preset control signal, so that the gear meshes with the transmission external gear ring 3012, driving the wind speed adjustment mechanism 3 to make corresponding adjustments. Through the precise operation of the four servo motors 403, the state of each wind speed adjustment mechanism 3 can be adjusted synchronously or independently, thereby achieving precise wind speed adjustment. This design can effectively improve the flexibility and response speed of wind speed control, and avoid the problem of inaccurate wind speed adjustment in traditional systems.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An intelligent air box silent exhaust fan with adjustable wind speed device, characterized in that: Including the air supply mechanism (1) for conveying airflow, one side of the air supply mechanism (1) is provided with four air speed adjusting mechanisms (3) for controlling air speed, four sides of the air speed adjusting mechanism (3) are provided with support assembly (2) for supporting four air speed adjusting mechanism (3), the support assembly (2) is provided with drive mechanism (4) for controlling four air speed adjusting mechanism (3) opening and closing near the center of one side of the air supply mechanism (1).

2. The adjustable air speed device of a smart silencer exhaust fan according to claim 1, wherein: The air supply mechanism (1) comprises a lower air collector (101), a plurality of air inlets (102) are arranged in the lower air collector (101), the upper end of the lower air collector (101) is fixedly connected with an upper air collector (103) through bolts, and a support steel ring (104) is fixedly arranged in the center of the upper air collector (103).

3. The adjustable air speed device of a smart silencer exhaust fan according to claim 2, wherein: The upper end of the support steel ring (104) is fixedly connected with an AC motor (105), the rotating end of the lower part of the AC motor (105) is arranged between the lower air collector (101) and the upper air collector (103), the rotating end of the lower part of the AC motor (105) is fixedly connected with a wind wheel (106), the wind wheel (106) is rotatably arranged in the lower air collector (101) and the upper air collector (103), and the lower air collector (101) and the upper air collector (103) are fixedly arranged with a wind deflector (107) on one side.

4. The adjustable air speed device of claim 3, wherein: The support assembly (2) comprises a support plate (201), the support plate (201) is fixedly arranged in the wind deflector (107) away from the wind wheel (106) on one side, and a plurality of mounting holes (202) are arranged in the center of the support plate (201) on four diagonal sides.

5. The adjustable air speed device of a smart silencer exhaust fan according to claim 4, wherein: The air speed adjusting mechanism (3) comprises a support ring (301), the support ring (301) is fixedly arranged in the mounting hole (202), the support ring (301) is fixedly connected with an air outlet connecting pipe (302) away from the lower air collector (101) on one side, the support ring (301) is fixedly connected with an opening and closing limiting frame (303) away from the air outlet connecting pipe (302) on one side, and a plurality of internal thread holes (304) are arranged in the center of the support ring (301) on one side.

6. The adjustable air speed device of a smart silencer exhaust fan according to claim 5, wherein: A plurality of positioning bolts (305) are threadedly connected in the internal thread holes (304), a plurality of limiting discs (306) are arranged outside the positioning bolts (305), and the positioning bolts (305) are rotatably arranged in the limiting disc (306), a plurality of opening and closing petals (307) are arranged in the opening and closing limiting frame (303), a plurality of sleeve holes (308) are arranged in the opening and closing petals (307), and the sleeve holes (308) are rotatably arranged outside the positioning bolts (305).

7. The adjustable air speed device of a smart silencer exhaust fan according to claim 6, wherein: A plurality of said open and close petals (307) are fixedly connected with a limiting pin (309) near the center of one side of the limiting disc (306), a transmission ring (3010) is arranged between the limiting disc (306) and the open and close limiting frame (303), the transmission ring (3010) is rotatably sleeved outside a plurality of positioning bolts (305), a plurality of limiting grooves (3011) are annularly arranged and penetrated in the inner center of the transmission ring (3010), a plurality of said limiting pins (309) are respectively slidably sleeved in the plurality of limiting grooves (3011), and a transmission outer gear ring (3012) is fixedly sleeved outside the transmission ring (3010).

8. The adjustable air speed device of a smart silencer exhaust fan according to claim 7, wherein: The driving mechanism (4) comprises four positioning strips (401) fixedly connected to the support plate (201) near the center of one side of the air guide cover (107), four support vertical plates (402) are fixedly connected to the side away from the four positioning strips (401) of the support plate (201), four servo motors (403) are fixedly connected to the center of the side away from the four positioning strips (401) of the support vertical plate (402), the output ends of the four servo motors (403) penetrate the support vertical plate (402), and the output ends of the four servo motors (403) are fixedly connected with driving gears (404), and the four driving gears (404) are in gear meshing transmission with the four transmission outer gear rings (3012) respectively.

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