Air volume regulating device for air conditioning ventilation system

Abstract

The utility model relates to air conditioning ventilation system technical field, and disclose a kind of air volume regulating device of air conditioning ventilation system, the device is constituted by first pipe body, second pipe body, first pipe body inside is equipped with air induction ventilation mechanism, second pipe body surface is equipped with air volume regulating mechanism, the latter contains air volume regulating component and end production gas monitoring adjusting component, air volume regulating component is rotated by control motor and drives adjusting blade, changes the shielding amount to ventilation opening to regulate air volume;End production gas monitoring adjusting component calculates required air volume according to work requirement, control electric control telescopic column pushes out corresponding number of flow regulating plate, and the self-adapting regulation of air volume is realized in combination with end flow sensor and pressure sensor, compared with prior art, the device can realize accurate, delicate air volume regulation, can also real-time feedback production gas situation, provide data support for reasonable regulation air volume, effectively satisfy different work requirements, improve production environment quality and reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning and ventilation system technology, specifically to an air volume regulating device for an air conditioning and ventilation system. Background Technology

[0002] In industrial production and other scenarios, air conditioning and ventilation systems not only need to meet the comfort requirements of the indoor environment, but also need to be closely linked to the air consumption status of the end production. The air quality and air volume requirements of different production stages will change with the production rhythm and process. This air volume adjustment device is designed to achieve adaptive and precise adjustment of the ventilation system's air volume through real-time monitoring of the end production air consumption, thereby improving the quality of the production environment, ensuring the smooth operation of the production process, and minimizing energy consumption.

[0003] In industrial production and other scenarios, different workshops often require different gas flow rates. Unstable gas flow rates and excessively fast gas velocities can all affect the working environment of the workshop and the smooth progress of the production process. Commonly used devices do not have convenient and quick airflow adjustment components to control the gas flowing through the ventilation system. Utility Model Content

[0004] The purpose of this invention is to provide an air volume regulating device for an air conditioning and ventilation system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air volume regulating device for an air conditioning ventilation system, comprising a first pipe body, a second pipe body installed on the back of the first pipe body, an air intake ventilation mechanism provided inside the first pipe body, and an air volume regulating mechanism provided on the surface of the second pipe body, the air volume regulating mechanism comprising an air volume regulating component and a terminal production gas monitoring and regulating component.

[0006] The airflow regulating assembly includes a first regulating plate, which is installed at the front end of the second pipe body. A second regulating plate is installed in the middle section of the second pipe body. A first fixing frame is installed inside the second pipe body. A control motor is installed at the center of the back of the first fixing frame. A rotating shaft is provided on the front of the control motor. An adjusting blade is fixedly connected to the front of the rotating shaft. A first fixing ring is fixedly connected to the back of the first fixing frame. A first flow sensor is installed on the front of the first fixing ring. Ventilation openings are provided on the surfaces of both the first and second regulating plates. A second fixing frame is installed inside the second pipe body. A second fixing ring is fixedly connected to the front of the second fixing frame. A second flow sensor is installed on the front of the fixed ring. In daily use, the regulating blades do not obstruct the ventilation opening. When gas flows through the ventilation opening and passes through the first and second flow sensors, the first and second flow sensors detect the change in flow rate. Based on the working requirements and the set values, the motor is controlled to work, driving the shaft to rotate, which in turn drives the regulating blades to rotate, changing the amount of obstruction of the ventilation opening by the regulating blades, thereby changing the flow rate of the gas passing through the ventilation opening to meet different working requirements. By operating the forward and reverse rotation of the motor, the rotation angle of the blades can be precisely adjusted to achieve more delicate airflow regulation. The first and second flow sensors are EJA-E series differential pressure transmitters.

[0007] Preferably, the rotating shaft is fixedly connected to the front output end of the control motor, and the adjusting blades correspond to the ventilation openings.

[0008] Preferably, the first fixed frame, control motor, rotating shaft, adjusting blade, first fixing ring, first flow sensor, second fixed frame, second fixing ring and second flow sensor are all disposed between the first adjusting plate and the second adjusting plate.

[0009] Preferably, the surfaces of the first and second fixed frames are each provided with a rotating shaft, a control motor, and adjusting blades, and are symmetrically distributed.

[0010] Preferably, the end-of-pipe gas monitoring and regulating component includes an installation port located at the top and bottom rear ends of the second pipe body. A second placement frame is installed at the top rear end of the second pipe body, and a first placement frame is installed at the bottom rear end of the second pipe body. A partition plate is fixedly connected inside both the first and second placement frames. A controller is installed inside both the first and second placement frames. An electrically controlled telescopic column is installed on the surface of each controller. A first flow regulating plate and a second flow regulating plate are installed on the surface of the electrically controlled telescopic column. A plug-in hole is provided at the bottom of the first flow regulating plate, and a plug-in post is fixedly connected to the top of the second flow regulating plate. An end-of-pipe fixing frame is installed at the rear end of the second pipe body. A slide rail is fixedly connected to the top and bottom of the end-of-pipe fixing frame, and a mounting slide is slidably connected to the surface of the slide rail. The mounting slide is equipped with an end flow sensor and an end pressure sensor. Based on pre-calculation of operational requirements, considering factors such as production process requirements, indoor environmental standards, and ventilation system characteristics, the required ventilation duct airflow is calculated and sent to the controller. This controller then directs the electrically controlled telescopic column to extend an appropriate number of first and second flow regulating plates from inside the first and second placement frames. The gas velocity and airflow are limited by holes on the surfaces of the first and second flow regulating plates. Real-time data detection by the end flow and end pressure sensors enables adaptive airflow adjustment, providing real-time feedback on production gas usage and comprehensive data support for the control system. This allows for reasonable airflow adjustment based on actual production and environmental needs. The end flow sensor is an EJA-E series differential pressure transmitter, and the end pressure sensor is an MPM480.

[0011] Preferably, the first flow regulating plate is disposed inside the second placement frame, the second flow regulating plate is disposed inside the first placement frame, and both the first flow regulating plate and the second flow regulating plate are disposed at the end of the electrically controlled telescopic column away from the controller.

[0012] Preferably, the first flow regulating plate is disposed on top of the second flow regulating plate, and the insertion holes and insertion posts correspond one-to-one. The first flow regulating plate and the second flow regulating plate are connected through the insertion holes and insertion posts.

[0013] Preferably, the exhaust ventilation mechanism includes an exhaust fan mounting base, which is installed in the middle section inside the first pipe body. An exhaust fan frame is installed inside the exhaust fan mounting base, and an internal fixing plate is installed inside the exhaust fan frame. An exhaust fan drive motor is installed on the surface of the internal fixing plate, and exhaust fan blades are installed on the front of the exhaust fan drive motor. When rising, a foreign object blocking net is installed on the front of the exhaust fan mounting base.

[0014] Preferably, the fan blades are driven by a fan drive motor, which is mounted on the end of the built-in fixed plate away from the fan frame.

[0015] Preferably, the first tube body is fixedly connected to the front and back of the tube body, and the second tube body is fixedly connected to the front and back of the tube body. The first tube body and the second tube body are connected together through the mounting frames, and a front louvered grille is installed on the front of the first tube body.

[0016] Compared with the prior art, the present invention provides an air volume regulating device for an air conditioning ventilation system, which has the following beneficial effects:

[0017] 1. The air volume regulating device of this air conditioning ventilation system is equipped with an air volume regulating component. In daily use, the regulating blades do not obstruct the air vents. When the gas flows through the air vents and passes through the first flow sensor and the second flow sensor, the first flow sensor and the second flow sensor detect the change in flow rate. According to the working requirements and the set values, the motor is controlled to work, driving the rotating shaft to rotate, which in turn drives the regulating blades to rotate, changing the amount of obstruction of the regulating blades on the air vents, thereby changing the flow rate of the gas passing through the air vents to meet different working requirements. By operating the forward and reverse rotation of the motor, the rotation angle of the blades can be precisely adjusted to achieve more delicate air volume regulation.

[0018] 2. The air volume regulation device of this air conditioning and ventilation system is equipped with a terminal production gas monitoring and regulation component. Based on the work requirements, it calculates the required ventilation duct air volume in advance, taking into account factors such as production process requirements, indoor environmental standards, and ventilation system characteristics. It then sends a command to the controller to control the electrically controlled telescopic column to push out an appropriate number of first and second flow regulation plates from inside the first and second placement frames. The gas flow rate and air volume are limited by the holes on the surface of the first and second flow regulation plates. The terminal flow sensor and terminal pressure sensor detect the data in real time to achieve adaptive adjustment of the air volume and provide real-time feedback on the production gas consumption. This provides comprehensive data support for the control system, enabling reasonable air volume adjustment based on actual production and environmental needs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the air intake ventilation mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the induced draft fan frame of this utility model;

[0023] Figure 4 This is a schematic diagram of the first and second tube bodies of the present invention.

[0024] Figure 5 This is a schematic diagram of the airflow regulating component of this utility model;

[0025] Figure 6 This is a schematic diagram of the end-of-line production gas monitoring and regulation component of this utility model.

[0026] In the diagram: 1. First pipe body; 2. Mounting frame; 3. Second pipe body; 4. Front louvered grille; 5. Air intake ventilation mechanism; 51. Exhaust fan mounting base; 52. Exhaust fan frame; 53. Internal fixing plate; 54. Exhaust fan drive motor; 55. Exhaust fan blades; 56. Foreign object barrier net; 6. Air volume adjustment mechanism; 61. Air volume adjustment component; 611. First adjusting plate; 612. Second adjusting plate; 613. First fixing bracket; 614. Control motor; 615. Rotating shaft; 616. Adjusting blades; 617. First fixing ring; 618. First flow sensor; 619. Ventilation outlet. 6101, Second fixing frame; 6102, Second fixing ring; 6103, Second flow sensor; 62, Terminal production gas monitoring and adjustment assembly; 621, Mounting port; 622, First placement frame; 623, Second placement frame; 624, Partition plate; 625, Controller; 626, Electrically controlled telescopic column; 627, First flow regulating plate; 628, Second flow regulating plate; 629, Insertion hole; 6201, Insertion post; 6202, Terminal fixing frame; 6203, Slide rail; 6204, Mounting slide; 6205, Terminal flow sensor; 6206, Terminal pressure sensor. Detailed Implementation

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figure 1-6 An air volume regulating device for an air conditioning ventilation system includes a first pipe body 1, a second pipe body 3 installed on the back of the first pipe body 1, an air intake ventilation mechanism 5 provided inside the first pipe body 1, and an air volume regulating mechanism 6 provided on the surface of the second pipe body 3. The air volume regulating mechanism 6 includes an air volume regulating component 61 and a terminal production gas monitoring and regulating component 62.

[0032] The airflow regulating assembly 61 includes a first regulating plate 611, which is installed at the front end of the second pipe body 3. A second regulating plate 612 is installed in the middle section of the second pipe body 3. A first fixing bracket 613 is installed inside the second pipe body 3. A control motor 614 is installed at the center of the back of the first fixing bracket 613. A rotating shaft 615 is provided on the front of the control motor 614. An adjusting blade 616 is fixedly connected to the front of the rotating shaft 615. A first fixing ring 617 is fixedly connected to the back of the first fixing bracket 613. A first flow sensor 618 is installed on the front of the first fixing ring 617. Ventilation openings 619 are provided on the surfaces of both the first regulating plate 611 and the second regulating plate 612. A second fixing bracket 6101 is installed inside the second pipe body 3. A second fixing ring 6102 is fixedly connected to the front of the second fixing bracket 6101. Equipped with a second flow sensor 6103, the regulating vane 616 does not obstruct the vent 619 during normal use. When gas flows through the vent 619 and passes through the first flow sensor 618 and the second flow sensor 6103, the first flow sensor 618 and the second flow sensor 6103 detect the change in flow rate. Based on the working requirements and the set values, the motor 614 is controlled to work, driving the rotating shaft 615 to rotate, which in turn drives the regulating vane 616 to rotate, changing the amount of obstruction of the regulating vane 616 on the vent 619, thereby changing the flow rate of the gas passing through the vent 619 to meet different working requirements. By operating the forward and reverse rotation of the control motor 614, the rotation angle of the vane can be precisely adjusted to achieve more delicate airflow regulation. The first flow sensor 618 and the second flow sensor 6103 are EJA-E series differential pressure transmitters.

[0033] The rotating shaft 615 is fixedly connected to the front output end of the control motor 614, and the adjusting blade 616 corresponds to the vent 619;

[0034] The first fixed frame 613, control motor 614, rotating shaft 615, adjusting blade 616, first fixing ring 617, first flow sensor 618, second fixed frame 6101, second fixing ring 6102 and second flow sensor 6103 are all disposed between the first adjusting plate 611 and the second adjusting plate 612.

[0035] The first fixed frame 613 and the second fixed frame 6101 are both provided with a rotating shaft 615, a control motor 614 and an adjusting blade 616, and are symmetrically distributed.

[0036] The end-of-pipe gas monitoring and control component 62 includes an installation port 621, which is located at the top and bottom rear ends of the second pipe body 3. A second placement frame 623 is installed at the top rear end of the second pipe body 3, and a first placement frame 622 is installed at the bottom rear end of the second pipe body 3. A partition plate 624 is fixedly connected inside both the first placement frame 622 and the second placement frame 623. A controller 625 is installed inside both the first placement frame 622 and the second placement frame 623, and an electrically controlled telescopic column is installed on the surface of the controller 625. 626, a first flow regulating plate 627 is installed on the surface of the electrically controlled telescopic column 626, and a second flow regulating plate 628 is installed on the surface of the electrically controlled telescopic column 626. The first flow regulating plate 627 has a plug-in hole 629 at its bottom, and a plug-in post 6201 is fixedly connected to the top of the second flow regulating plate 628. An end fixing frame 6202 is installed at the rear end inside the second pipe body 3. Slide tracks 6203 are fixedly connected to the top and bottom of the end fixing frame 6202. A mounting slide is slidably connected to the surface of the slide track 6203. The mounting base 6204 has an end flow sensor 6205 and an end pressure sensor 6206 mounted on its surface. Based on pre-calculation of operational needs, and considering factors such as production process requirements, indoor environmental standards, and ventilation system characteristics, the required ventilation duct airflow is calculated and sent to the controller 625. This controller then controls the electrically controlled telescopic column 626 to push out an appropriate number of first flow regulating plates 627 and second flow regulating plates 628 from inside the first placement frame 622 and second placement frame 623. The gas flow rate and airflow are limited by the holes on the surfaces of the first flow regulating plates 627 and second flow regulating plates 628. Real-time data detection by the end flow sensor 6205 and end pressure sensor 6206 enables adaptive airflow adjustment, providing real-time feedback on production gas consumption and comprehensive data support for the control system. This allows for reasonable airflow adjustment based on actual production and environmental needs. The end flow sensor 6205 uses an EJA-E series differential pressure transmitter, and the end pressure sensor 6206 uses an MPM480.

[0037] The first flow regulating plate 627 is disposed inside the second placement frame 623, and the second flow regulating plate 628 is disposed inside the first placement frame 622. Both the first flow regulating plate 627 and the second flow regulating plate 628 are disposed at the end of the electrically controlled telescopic column 626 away from the controller 625.

[0038] The first flow regulating plate 627 is disposed on the top of the second flow regulating plate 628, and the insertion hole 629 and the insertion post 6201 correspond one-to-one. The first flow regulating plate 627 and the second flow regulating plate 628 are inserted through the insertion hole 629 and the insertion post 6201.

[0039] Example 2

[0040] Please see Figure 1-6 Furthermore, based on Embodiment 1, the exhaust ventilation mechanism 5 further includes an exhaust fan mounting base 51, which is installed in the middle section of the first pipe body 1. An exhaust fan frame 52 is installed inside the exhaust fan mounting base 51, and an internal fixing plate 53 is installed inside the exhaust fan frame 52. An exhaust fan drive motor 54 is installed on the surface of the internal fixing plate 53, and an exhaust fan blade 55 is installed on the front of the exhaust fan drive motor 54. When rising, a foreign object blocking net 56 is installed on the front of the exhaust fan mounting base 51.

[0041] The fan blades 55 of the induced draft fan are driven by the induced draft fan drive motor 54, which is installed on the end of the built-in fixed plate 53 away from the induced draft fan frame 52.

[0042] The first tube body 1 is fixedly connected to the front and back of the mounting frame 2, and the second tube body 3 is fixedly connected to the front and back of the mounting frame 2. The first tube body 1 and the second tube body 3 are connected together through the mounting frame 2. The front of the first tube body 1 is equipped with a front louvered grille 4.

[0043] In actual operation, when this device is used, the induced draft fan drive motor 54 inside the induced draft fan frame 52 drives the induced draft fan blades 55 to rotate, thereby achieving the induced draft operation. The setting of the foreign object blocking net 56 front louvered grilles 4 can ensure that no foreign objects enter the first pipe body 1 and the second pipe body 3 to block the passage of gas.

[0044] In daily use, the adjusting blade 616 does not obstruct the vent 619. When the gas flows through the vent 619 and passes through the first flow sensor 618 and the second flow sensor 6103, the first flow sensor 618 and the second flow sensor 6103 detect the change in flow rate. According to the working requirements and the set values, the motor 614 is controlled to work, driving the rotating shaft 615 to rotate, which in turn drives the adjusting blade 616 to rotate, changing the amount of obstruction of the adjusting blade 616 on the vent 619, thereby changing the flow rate of the gas passing through the vent 619 to meet different working requirements. By operating the forward and reverse rotation of the control motor 614, the rotation angle of the blade can be precisely adjusted to achieve more delicate airflow adjustment.

[0045] Based on pre-calculations according to work requirements, and taking into account factors such as production process requirements, indoor environmental standards, and ventilation system characteristics, the required ventilation duct airflow is calculated. A command is sent to the controller 625 to control the electrically controlled telescopic column 626 to push out an appropriate number of first flow regulating plates 627 and second flow regulating plates 628 from inside the first placement frame 622 and second placement frame 623. The gas flow rate and airflow are limited by the holes on the surface of the first flow regulating plates 627 and second flow regulating plates 628. Data is detected in real time by the terminal flow sensor 6205 and the terminal pressure sensor 6206 to achieve adaptive adjustment of airflow, provide real-time feedback on production gas consumption, and provide comprehensive data support for the control system so as to make reasonable airflow adjustments according to actual production and environmental needs.

[0046] 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.

Claims

1. An air volume adjusting device of an air conditioning and ventilation system, comprising a first pipe body (1), characterized in that: A second pipe body (3) is installed on the back of the first pipe body (1). An air intake ventilation mechanism (5) is provided inside the first pipe body (1). An air volume adjustment mechanism (6) is provided on the surface of the second pipe body (3). The air volume adjustment mechanism (6) includes an air volume adjustment component (61) and a terminal production gas monitoring and adjustment component (62). The airflow regulating component (61) includes a first regulating plate (611), which is installed at the front end of the second tube (3). A second regulating plate (612) is installed in the middle section of the second tube (3). A first fixing frame (613) is installed inside the second tube (3). A control motor (614) is installed at the center of the back of the first fixing frame (613). A rotating shaft (615) is provided on the front of the control motor (614). An adjusting blade (616) is fixedly connected to the front of the rotating shaft (615). The first fixing bracket (613) is fixedly connected to the back of the first fixing ring (617), and the first flow sensor (618) is installed on the front of the first fixing ring (617). Ventilation openings (619) are provided on the surfaces of the first adjusting plate (611) and the second adjusting plate (612). The second fixing bracket (6101) is installed inside the second pipe body (3). The second fixing bracket (6101) is fixedly connected to the front of the second fixing ring (6102), and the second flow sensor (6103) is installed on the front of the second fixing ring (6102).

2. The air volume adjusting device of an air conditioning and ventilation system according to claim 1, wherein: The rotating shaft (615) is fixedly connected to the front output end of the control motor (614), and the adjusting blade (616) corresponds to the vent (619).

3. The air volume adjusting device of an air conditioning and ventilation system according to claim 1, wherein: The first fixed frame (613), control motor (614), rotating shaft (615), adjusting blade (616), first fixed ring (617), first flow sensor (618), second fixed frame (6101), second fixed ring (6102) and second flow sensor (6103) are all disposed between the first adjusting plate (611) and the second adjusting plate (612).

4. The air volume regulating device for an air conditioning ventilation system according to claim 1, characterized in that: The first fixing frame (613) and the second fixing frame (6101) are both provided with a rotating shaft (615), a control motor (614) and an adjusting blade (616), and are symmetrically distributed.

5. The air volume regulating device for an air conditioning ventilation system according to claim 1, characterized in that: The terminal production gas monitoring and regulation component (62) includes an installation port (621), which is located at the top and bottom rear ends of the second pipe body (3). A second placement frame (623) is installed at the top rear end of the second pipe body (3), and a first placement frame (622) is installed at the bottom rear end of the second pipe body (3). A partition plate (624) is fixedly connected inside both the first placement frame (622) and the second placement frame (623). A controller (625) is installed inside both the first placement frame (622) and the second placement frame (623). An electrically controlled telescopic column (626) is installed on the surface of the controller (625), and a first flow regulating plate (627) is installed on the surface of the electrically controlled telescopic column (626). The surface of the electrically controlled telescopic column (626) is equipped with a second flow regulating plate (628). The bottom of the first flow regulating plate (627) is provided with a plug hole (629). The top of the second flow regulating plate (628) is fixedly connected with a plug post (6201). The rear end of the second tube body (3) is equipped with an end fixing frame (6202). The top and bottom of the end fixing frame (6202) are fixedly connected with slide rails (6203). The surface of the slide rail (6203) is slidably connected with a mounting slide (6204). The surface of the mounting slide (6204) is equipped with an end flow sensor (6205). The surface of the mounting slide (6204) is equipped with an end pressure sensor (6206).

6. The air volume regulating device for an air conditioning ventilation system according to claim 5, characterized in that: The first flow regulating plate (627) is disposed inside the second placement frame (623), and the second flow regulating plate (628) is disposed inside the first placement frame (622). Both the first flow regulating plate (627) and the second flow regulating plate (628) are disposed at the end of the electrically controlled telescopic column (626) away from the controller (625).

7. The air volume regulating device for an air conditioning ventilation system according to claim 5, characterized in that: The first flow regulating plate (627) is disposed on the top of the second flow regulating plate (628), and the insertion hole (629) and the insertion post (6201) correspond one-to-one. The first flow regulating plate (627) and the second flow regulating plate (628) are connected through the insertion hole (629) and the insertion post (6201).

8. The air volume regulating device for an air conditioning ventilation system according to claim 1, characterized in that: The air intake ventilation mechanism (5) includes an exhaust fan mounting base (51), which is installed in the middle section of the first pipe body (1). An exhaust fan frame (52) is installed inside the exhaust fan mounting base (51), and an internal fixing plate (53) is installed inside the exhaust fan frame (52). An exhaust fan drive motor (54) is installed on the surface of the internal fixing plate (53), and an exhaust fan blade (55) is installed on the front of the exhaust fan drive motor (54). When rising, a foreign object blocking net (56) is installed on the front of the exhaust fan mounting base (51).

9. The air volume regulating device for an air conditioning ventilation system according to claim 8, characterized in that: The fan blades (55) of the induced draft fan are driven by the induced draft fan drive motor (54), which is installed on the end of the built-in fixed plate (53) away from the induced draft fan frame (52).

10. The air volume regulating device for an air conditioning ventilation system according to claim 1, characterized in that: The first tube (1) is fixedly connected to the front and back of the mounting frame (2), and the second tube (3) is fixedly connected to the front and back of the mounting frame (2). The first tube (1) and the second tube (3) are connected together through the mounting frame (2). The front of the first tube (1) is equipped with a front louvered grille (4).

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