Air volume adjusting device of heating ventilation air conditioner capable of adjusting in segmented mode
The segmented air duct adjustment is achieved through a bevel gear and threaded rod system driven by a servo motor. Combined with a slider and spring structure, the filter screen can be cleaned easily, solving the problem of individual air duct adjustment and cleaning, reducing energy consumption and improving the cleanliness and filtration effect of the equipment.
Patent Information
- Application Number
- CN202520223377.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing HVAC airflow control devices cannot individually adjust different sections of the air duct, and are not convenient for easy filtration and cleaning, leading to increased energy consumption and environmental pollution.
The system employs a servo motor-driven bevel gear and threaded rod system to achieve segmented adjustment of different air ducts, and the filter screen and activated carbon plate can be easily disassembled for cleaning via a slider and spring structure.
It enables individual airflow adjustment for different air ducts, reduces energy consumption, and facilitates the cleaning of filters and activated carbon plates, thereby improving the cleanliness and filtration effect of the equipment.
Smart Images

Figure CN223925052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating, ventilation and air conditioning, and more specifically, to a segmented airflow regulating device for heating, ventilation and air conditioning. Background Technology
[0002] Airflow control devices in HVAC systems are primarily used to regulate airflow, allowing for flexible control based on indoor demand and ensuring system efficiency and comfort. Effective airflow regulation optimizes system performance, reduces energy consumption, and improves indoor air quality and comfort. In commercial buildings, airflow control devices automatically adjust airflow according to the load demands of different floors or areas, maintaining suitable indoor temperature and air quality.
[0003] Currently, most HVAC airflow control devices have the following problems:
[0004] For example, a heating, ventilation, and air conditioning air volume regulating device with publication number CN221724506U can control the air volume by adjusting the size of the air duct opening through a baffle. However, when adjusting the baffle, the air outlet gap gradually becomes smaller, and the gap is located at the bottom. This can easily cause noise and increase energy consumption when the air is ventilated, requiring more energy to maintain air circulation. Furthermore, it is inconvenient to adjust the air volume of different sections of the air duct individually. At the same time, existing air volume regulating devices can easily trap some dust and impurities in the air during the ventilation process. Direct discharge can easily pollute the surrounding environment. Even with a filter screen for dust filtration, dust can easily clog the filter screen after prolonged use, affecting the air output effect and making it inconvenient to filter and clean the equipment.
[0005] Therefore, we have made improvements to this by proposing a segmented airflow regulation device for HVAC systems. Utility Model Content
[0006] The purpose of this utility model is to address the current problems of inconvenience in individually adjusting the airflow of different sections of the air duct, and inconvenience in convenient filtration and cleaning of the equipment.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] The air volume control device for HVAC systems with segmented adjustment is used to improve the above-mentioned problems.
[0009] The application is as follows:
[0010] The system includes a ventilation duct, a servo motor fixedly connected to the ventilation duct, a first bevel gear fixedly connected to the output shaft of the servo motor, a second bevel gear meshing with the first bevel gear, a threaded rod fixedly connected to the second bevel gear, the threaded rod rotatably connected inside the ventilation duct, a moving block threadedly connected to the threaded rod, a support mesh plate fixedly connected to the moving block, a blocking block fixedly connected to the support mesh plate, a partition fixedly connected inside the ventilation duct, a sealing bracket provided on the ventilation duct, a filter screen fixedly connected to the sealing bracket, an activated carbon plate fixedly connected to the sealing bracket, a slider fixedly connected to the sealing bracket, a spring fixedly connected inside the slider, a limit plate fixedly connected to the other end of the spring, and a locking block fixedly connected to the limit plate.
[0011] As a preferred technical solution of this application, the threaded rods are equidistantly distributed inside the ventilation pipe, and the threaded rods correspond one-to-one with the support mesh plate through the moving block.
[0012] As a preferred technical solution of this application, the side end face of the support mesh plate is in contact with the inner side of the ventilation pipe, and the blocking blocks are evenly distributed on the support mesh plate.
[0013] As a preferred technical solution of this application, the partition plate is provided with through holes at equal intervals, and the through holes on the partition plate are at the same horizontal line as the blocking block.
[0014] As a preferred technical solution of this application, the sliders are symmetrically distributed on the left and right sides of the sealing bracket, and the sliders correspond one-to-one with the card blocks through the limiting plates.
[0015] As a preferred technical solution of this application, a connecting rod is fixedly connected to the limiting plate, a pull plate is fixedly connected to the connecting rod, and the cross-section of the slider is "T" shaped.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] In the scheme of this application:
[0018] 1. By setting up partitions, when adjusting the airflow of different air outlets, the corresponding servo motor on the ventilation duct can be turned on. The servo motor drives the first bevel gear to rotate, and the first bevel gear can drive the threaded rod to rotate through the second bevel gear. When the threaded rod rotates, it can push the moving block to move. The moving block moves while driving the support mesh plate to move. The blocking block on the support mesh plate can be inserted into the through hole of the partition. The slow movement can reduce the size of the gap in the through hole of the partition, thereby adjusting the airflow. Moreover, the equally spaced through holes can uniformly control the airflow. Different sections of the air duct in the ventilation duct can be adjusted individually.
[0019] 2. By using the slider, when disassembling and cleaning the installed filter screen and activated carbon plate of the sealing bracket, the pull plates on both sides of the sealing bracket can be pulled. The pull plates can drive the limiting plate to move through the connecting rod. When the limiting plate moves, it can squeeze the spring in the slider. At the same time, the limiting plate can drive the locking block to disengage from the ventilation pipe and retract into the slider. When the slider on the sealing bracket is unobstructed, the sealing bracket can be slid out to disassemble the installed filter screen and activated carbon plate in order to clean the filtered impurities and avoid impurities clogging and affecting the filtration effect. Attached Figure Description
[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of the segmented adjustable air volume regulating device for HVAC provided in this application;
[0021] Figure 2 A top view of the ventilation duct structure of the segmented adjustable air volume regulating device for HVAC provided in this application;
[0022] Figure 3 A side view of the support mesh plate structure of the segmented adjustable air volume regulating device for HVAC provided in this application;
[0023] Figure 4 A side view of the partition structure of the segmented adjustable air volume regulating device for HVAC provided in this application;
[0024] Figure 5 A side view of the sealed bracket structure of the segmented adjustable air volume regulating device for HVAC provided in this application;
[0025] Figure 6 The segmented air volume regulating device for HVAC provided in this application Figure 2 Enlarged structural diagram at point A in the middle.
[0026] The diagram shows: 1. Ventilation duct; 2. Servo motor; 3. First bevel gear; 4. Second bevel gear; 5. Threaded rod; 6. Moving block; 7. Support mesh plate; 8. Block; 9. Partition plate; 10. Sealing bracket; 11. Filter screen; 12. Activated carbon plate; 13. Slider; 14. Spring; 15. Limiting plate; 16. Locking block; 17. Connecting rod; 18. Pull plate. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] Example 1:
[0033] like Figure 1-6 As shown, this embodiment proposes a segmented adjustable airflow regulating device for HVAC systems, including a ventilation pipe 1. A servo motor 2 is fixedly connected to the ventilation pipe 1. A first bevel gear 3 is fixedly connected to the output shaft of the servo motor 2. A second bevel gear 4 is meshed with the first bevel gear 3. A threaded rod 5 is fixedly connected to the second bevel gear 4. The threaded rod 5 is rotatably connected inside the ventilation pipe 1. A moving block 6 is threadedly connected to the threaded rod 5. A support mesh plate 7 is fixedly connected to the moving block 6. A blocking block 8 is fixedly connected to the support mesh plate 7. A partition plate 9 is fixedly connected inside the ventilation pipe 1. A sealing bracket 10 is provided on the ventilation pipe 1. A filter screen 11 is fixedly connected to the sealing bracket 10. An activated carbon plate 12 is fixedly connected to the sealing bracket 10. A slider 13 is fixedly connected to the sealing bracket 10. A spring 14 is fixedly connected inside the slider 13. A limit plate 15 is fixedly connected to the other end of the spring 14. A locking block 16 is fixedly connected to the limit plate 15.
[0034] Example 2:
[0035] The solution in Example 1 will be further described below with reference to its specific working method.
[0036] like Figure 2 As shown, in a preferred embodiment, based on the above method, the threaded rods 5 are further distributed equidistantly in the ventilation pipe 1, and the threaded rods 5 correspond one-to-one with the support mesh plate 7 through the moving block 6, which can ensure that the support mesh plate 7 can adjust and control the air ducts of different ventilation pipes 1 respectively.
[0037] like Figure 2 As shown, in a preferred embodiment, based on the above method, the side end face of the support mesh plate 7 is in contact with the inner side of the ventilation pipe 1, and the block blocks 8 are evenly distributed on the support mesh plate 7, which can ensure that the air in the ventilation pipe 1 can be evenly discharged by the support mesh plate 7.
[0038] like Figure 4 As shown, in a preferred embodiment, based on the above method, through holes are further provided on the partition 9 at equal intervals. The through holes on the partition 9 are at the same horizontal line as the block 8, which can ensure that the block 8 can block the through holes of the partition 9 to control the air volume.
[0039] like Figure 6 As shown, in a preferred embodiment, based on the above method, the sliders 13 are symmetrically distributed on the left and right sides of the sealing bracket 10. The sliders 13 correspond one-to-one with the locking blocks 16 through the limiting plate 15, which can ensure that the locking blocks 16 can be stably locked in the ventilation pipe 1 to limit and fix the sealing bracket 10.
[0040] like Figure 6 As shown, in a preferred embodiment, based on the above method, a connecting rod 17 is fixedly connected to the limiting plate 15, a pull plate 18 is fixedly connected to the connecting rod 17, and the slider 13 has a "T" shaped cross section, which can ensure that the "T" shaped slider 13 can slide within the ventilation pipe 1.
[0041] Specifically, when using this segmented airflow regulating device for HVAC systems: (in conjunction with...) Figure 1-6 When the ventilation duct 1 is venting air, it can filter impurities in the air through the filter screen 11 and the activated carbon plate 12. After filtration, the air can be discharged through the through holes on the partition plate 9 through the support screen plate 7. When adjusting the air volume of different sections of the air outlet, the corresponding servo motor 2 on the ventilation duct 1 can be turned on. The servo motor 2 drives the first bevel gear 3 to rotate. The first bevel gear 3 can drive the threaded rod 5 to rotate through the second bevel gear 4. When the threaded rod 5 rotates, it can push the moving block 6 to move. The moving block 6 moves while driving the support screen plate 7 to move. The blocking block 8 on the support screen plate 7 can be inserted into the through hole of the partition plate 9. The slow movement can reduce the size of the gap in the through hole of the partition plate 9, thereby adjusting the air volume. The equally spaced through holes can evenly control the air volume.
[0042] When disassembling and cleaning the filter screen 11 and activated carbon plate 12 installed on the sealing bracket 10, the pull plates 18 on both sides of the sealing bracket 10 can be pulled. The pull plates 18 can drive the limiting plate 15 to move through the connecting rod 17. When the limiting plate 15 moves, it can squeeze the spring 14 in the slider 13. At the same time, the limiting plate 15 can drive the locking block 16 to disengage from the ventilation pipe 1 and retract into the slider 13. When the slider 13 on the sealing bracket 10 is unobstructed, the sealing bracket 10 can be slid out to disassemble the installed filter screen 11 and activated carbon plate 12 in order to clean the filtered impurities and avoid impurities clogging and affecting the filtration effect. After cleaning, when it is necessary to install and reset the sealing bracket 10, the slider 13 can be slid and locked in the ventilation pipe 1. The pull plates 18 are released, and the limiting plate 15 and locking block 16 are reset under the push of the spring 14. The locking block 16 can be locked in the ventilation pipe 1 to limit and fix the installed sealing bracket 10 and prevent it from falling off.
[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.
Claims
1. A device for regulating the air volume of a sectional regulation heating, ventilation and air conditioning, comprising a ventilation duct (1), characterized in that, The ventilation pipe (1) is fixedly connected with a servo motor (2), the output shaft of the servo motor (2) is fixedly connected with a first bevel gear (3), the first bevel gear (3) is meshed with a second bevel gear (4), the second bevel gear (4) is fixedly connected with a threaded rod (5), the threaded rod (5) is rotatably connected in the ventilation pipe (1), the threaded rod (5) is threadedly connected with a moving block (6), the moving block (6) is fixedly connected with a support net plate (7), the support net plate (7) is fixedly connected with a block (8), the ventilation pipe (1) is fixedly connected with a partition (9), the ventilation pipe (1) is provided with a sealing support (10), the sealing support (10) is fixedly connected with a filter screen (11), the sealing support (10) is fixedly connected with an activated carbon plate (12), the sealing support (10) is fixedly connected with a sliding block (13), the sliding block (13) is fixedly connected with a spring (14), the other end of the spring (14) is fixedly connected with a limiting plate (15), the limiting plate (15) is fixedly connected with a clamping block (16).
2. A device for regulating the air volume of a split conditioning unit according to claim 1, wherein, The threaded rods (5) are equidistantly distributed in the ventilation pipe (1), and the threaded rods (5) are one-to-one corresponding with the support net plates (7) through the moving blocks (6).
3. A device for regulating the air volume of a split system air conditioning unit as set forth in claim 1, wherein, The side end face of the support net plate (7) is attached to the inner side face of the ventilation pipe (1), and the block (8) is equidistantly distributed on the support net plate (7).
4. A device for regulating the air volume of a split system air conditioning unit as set forth in claim 1, wherein, The partition (9) is equidistantly provided with through holes, and the through holes on the partition (9) are in the same horizontal line with the block (8).
5. A device for regulating the air volume of a split system air conditioning unit as set forth in claim 1, wherein, The sliding blocks (13) are symmetrically distributed on the left and right sides of the sealing support (10), and the sliding blocks (13) are one-to-one corresponding with the clamping blocks (16) through the limiting plates (15).
6. A variable air volume device for a variable air volume air conditioning system as set forth in claim 1, wherein The limiting plate (15) is fixedly connected with a connecting rod (17), the connecting rod (17) is fixedly connected with a pull plate (18), and the sliding block (13) is in the shape of "T".
Citation Information
Patent Citations
Air volume adjusting device of heating ventilation air conditioner
CN221724506U