Quantitative air valve with air volume control structure
By introducing an air volume control structure and an electric rotating mechanism into the quantitative air valve, the problem of the existing constant air volume air valve being unsuitable for adjustment under different air speeds is solved, and optimized adjustment and automatic cleaning under multiple air speeds are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DEZHOU YOUTU VENTILATION EQUIP CO LTD
- Filing Date
- 2026-03-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing constant air volume dampers are ineffective at low air speeds, and spring adjustment structures are prone to failure at high air speeds, with limited adjustment methods.
A quantitative air valve with an airflow control structure was designed. It uses a combination of a first adjusting nut and a second adjusting nut, combined with the linkage of an airbag and a spring plate, to switch the adjustment mode according to different wind speeds. At the same time, an electric rotating mechanism is introduced, which drives the adjusting shaft to rotate through a sleeve to achieve automatic cleaning.
It achieves optimized adjustment under different wind speeds, avoids the shortcomings of a single adjustment method, enhances adaptability under low and high wind speeds, and ensures the cleanliness of the valve body through an automatic cleaning mechanism.
Smart Images
Figure CN121953084A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of air valves, and specifically relates to a quantitative air valve with an airflow control structure. Background Technology
[0002] Air volume regulating valves, also known as air valves, are indispensable central air conditioning terminal accessories in ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. They are generally used in air conditioning and ventilation system ducts to regulate the air volume of branch pipes and can also be used for the mixed regulation of fresh air and return air.
[0003] The existing constant air volume valve has a single adjustment method, the airbag is less effective at low wind speeds, and the spring adjustment structure is prone to failure at high wind speeds. To address these issues, the existing equipment needs to be improved. Summary of the Invention
[0004] The purpose of this invention is to provide a quantitative air valve with an airflow control structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a quantitative air valve with an airflow control structure, comprising a valve body, mounting frames symmetrically fixed on both sides of the valve body, a housing fixed to the top of the two mounting frames by bolts, a self-cleaning mechanism provided on the inner side of the valve body, the self-cleaning mechanism penetrating the housing, a shaft rotatably connected to the inner side of the valve body, a support base fixed to the outer side of the shaft, the shaft penetrating the top of the valve body and connected to a connecting rod, one side of the connecting rod being connected to a spring plate by a steel strip, one end of the spring plate being fixed to the top of the valve body, a second adjusting shaft rotatably connected to the top of the valve body, the second adjusting shaft penetrating the valve body, an arc-shaped support plate and an adjusting plate fixed to the outer side of the second adjusting shaft, and an electric rotating mechanism fixed to the top of the housing.
[0006] Preferably, the self-cleaning mechanism includes a main shaft, which is rotatably connected to the inner side of the valve body. The top of the main shaft passes through the outer shell and is connected to a first adjusting shaft. A groove is provided inside the main shaft, and a first spring is fixed in the groove. A toothed plate is fixed to one end of the first spring, and the toothed plate passes through the first adjusting shaft and is connected to a movable block. A gear is meshed with one side of the toothed plate, and the gear is rotatably connected to the main shaft. A rotating plate is fixed to one side of the gear. Slide rails are symmetrically fixed on both sides of one end face of the rotating plate, and a rotating brush is slidably connected between the two slide rails.
[0007] Preferably, the rotating brush has symmetrical grooves on both sides, a second spring is fixed between the slide rail and one inner wall of the groove, and rollers are rotatably connected to one end of the rotating brush at equal intervals.
[0008] Preferably, adjusting blades are symmetrically fixed on both sides of the main shaft, and one of the adjusting blades has a through hole, a filter screen is fixed in the through hole, and an air bag is fixed on one of the adjusting blades.
[0009] Preferably, the top and bottom of the valve body are both threaded with first screws, and the shaft is rotatably connected between the two first screws.
[0010] Preferably, the top and bottom of the support base are provided with a first arc-shaped groove, and the top and bottom of the valve body are provided with a second screw, which passes through the first arc-shaped groove and is threaded with a fastener.
[0011] Preferably, a first adjusting nut is fixed to the top of the connecting rod, and a second arc-shaped groove is provided on the outer shell, through which the first adjusting nut passes.
[0012] Preferably, one end of the steel bar is fixed to the spring sheet, and the other end of the steel bar is hooked onto the connecting rod.
[0013] Preferably, a second adjusting nut is fixed to the top of the outer shell, and a third arc-shaped groove is provided on the adjusting plate, through which the second adjusting nut passes.
[0014] Preferably, the electric rotating mechanism includes a bracket, which is fixed to the top of the housing. Electric telescopic columns are symmetrically fixed on both sides of the top of the bracket. A first motor is fixed to the bottom of one of the electric telescopic columns, and the bottom of the first motor is connected to a first sleeve. A second motor is fixed to the bottom of the other electric telescopic column, and the bottom of the second motor is connected to a second sleeve.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this quantitative air valve with an airflow control structure, the first adjusting nut and the second adjusting nut must be used selectively. When the first adjusting nut is used, the connecting rod drives the main shaft and the adjusting blade to rotate at a certain angle, and the connecting rod is fixed by the first adjusting nut, thereby fixing the adjusting blade in the set position, so that there is a space for airflow between the adjusting blade and the inner wall of the valve body. When the second adjusting nut is used, the adjusting plate is controlled to rotate at a certain angle, and the adjusting plate drives the second adjusting shaft and the arc-shaped support plate to rotate. The arc-shaped support plate will support several spring plates, and the spring plates will generate a certain elastic resistance to the rotation of the connecting rod and the main shaft. When the wind speed is low, the spring plates play a major role, and when the wind speed is high, the airbag plays a major role. Through the linkage of the airbag adjusting component and the elastic adjusting component, their disadvantages can be avoided and their advantages can be amplified. 2. This quantitative air valve with an air volume control structure can achieve electric rotation of the first adjusting shaft by lowering the first sleeve and placing it on the outside of the first adjusting shaft, and can achieve electric rotation of the second adjusting shaft by lowering the second sleeve and placing it on the outside of the second adjusting shaft. When the first sleeve is lowered to the bottom, the first sleeve presses the movable block, the movable block and the toothed plate move down, and the gear, rotating plate and rotating brush rotate as a whole. The rotating brush can automatically clean the adjusting blades. At the same time, the rotating brush and the rotating plate can slide relative to each other, so that the rotating brush can rotate 360 degrees, thereby achieving comprehensive cleaning of the adjusting blades. Attached Figure Description
[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the self-cleaning mechanism of the present invention; Figure 4 This is a front view cross-sectional structural diagram of the self-cleaning mechanism of the present invention; Figure 5 This is a schematic diagram of the left-side cross-sectional structure of the self-cleaning mechanism of the present invention; Figure 6 This is a schematic diagram of the electric rotating mechanism of the present invention; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 8 For the present invention Figure 5 Enlarged structural diagram at point B.
[0019] In the diagram: 1. Valve body; 2. Mounting frame; 3. Housing; 4. Self-cleaning mechanism; 401. Main shaft; 402. First adjusting shaft; 403. Groove; 404. First spring; 405. Gear plate; 406. Movable block; 407. Gear; 408. Rotating plate; 409. Slide rail; 410. Rotating brush; 411. Slide groove; 412. Second spring; 413. Roller; 414. Adjusting blade; 415. Through hole; 416. Filter screen; 417. Airbag; 5. Shaft column; 6. First screw; 7. Support base ; 8. First arc-shaped groove; 9. Second screw; 10. Fastener; 11. Connecting rod; 12. First adjusting nut; 13. Second arc-shaped groove; 14. Steel bar; 15. Spring plate; 16. Second adjusting shaft; 17. Arc-shaped support plate; 18. Adjusting plate; 19. Second adjusting nut; 20. Third arc-shaped groove; 21. Electric rotating mechanism; 2101. Bracket; 2102. Electric telescopic column; 2103. First motor; 2104. First sleeve; 2105. Second motor; 2106. Second sleeve. Detailed Implementation
[0020] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see Figures 1 to 8 The present invention provides a technical solution: a quantitative air valve with an air volume control structure, comprising a valve body 1, mounting frames 2 symmetrically fixed on both sides of the valve body 1, a housing 3 fixed to the top of the two mounting frames 2 by bolts, a self-cleaning mechanism 4 provided on the inner side of the valve body 1, the self-cleaning mechanism 4 penetrating the housing 3, a shaft column 5 rotatably connected to the inner side of the valve body 1, a support seat 7 fixed to the outer side of the shaft column 5, the shaft column 5 penetrating the top of the valve body 1 and connected to a connecting rod 11, one side of the connecting rod 11 being connected to a spring plate 15 by a steel strip 14, one end of the spring plate 15 being fixed to the top of the valve body 1, a second adjusting shaft 16 rotatably connected to the top of the valve body 1, the second adjusting shaft 16 penetrating the valve body 1, an arc-shaped support plate 17 and an adjusting plate 18 fixed to the outer side of the second adjusting shaft 16, and an electric rotating mechanism 21 fixed to the top of the housing 3.
[0022] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8As shown, the self-cleaning mechanism 4 includes a main shaft 401, which is rotatably connected to the inner side of the valve body 1. The top of the main shaft 401 penetrates the outer casing 3 and is connected to the first adjusting shaft 402. A groove 403 is provided inside the main shaft 401, and a first spring 404 is fixed inside the groove 403. A toothed plate 405 is fixed to one end of the first spring 404, and the toothed plate 405 penetrates the first adjusting shaft 402 and is connected to the movable block 406. A gear 407 is meshed with one side of the toothed plate 405, and the gear 407 is rotatably connected to the main shaft 401. A rotating plate 408 is fixed on one side, and slide rails 409 are symmetrically fixed on both sides of one end face of the rotating plate 408. A rotating brush 410 is slidably connected between the two slide rails 409. When the movable block 406 is squeezed and moves downward, the toothed plate 405 moves downward accordingly, thereby driving the gear 407 to rotate. The rotating plate 408, the two slide rails 409 and the rotating brush 410 rotate as a whole. The rotating brush 410 can be used to clean the corresponding components. When the rotating brush 410 is blocked by the valve body 1, the first spring 404 is stretched and deformed, so that the rotating brush 410 can rotate 360 degrees, which facilitates comprehensive cleaning.
[0023] In this embodiment, as Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, the rotating brush 410 has symmetrically arranged grooves 411 on both sides. A second spring 412 is fixed between the slide rail 409 and one inner wall of the groove 411. Rollers 413 are rotatably connected to one end of the rotating brush 410 at equal intervals. During the rotation of the rotating brush 410 with the rotating plate 408, the rotating brush 410 can slide between the two slide rails 409, and the rollers 413 roll on the inner wall of the valve body 1, which helps to reduce friction.
[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, symmetrical adjustment blades 414 are fixed on both sides of the main shaft 401, and a through hole 415 is opened on one of the adjustment blades 414. A filter screen 416 is fixed in the through hole 415, and an air bag 417 is fixed on one of the adjustment blades 414. When the wind speed is high, air can enter the air bag 417 through the through hole 415, and the air bag 417 inflates and expands, which facilitates its function when the wind speed is high. The filter screen 416 plays a role in isolating and blocking external impurities.
[0025] In this embodiment, as Figure 2 As shown, the top and bottom of the valve body 1 are threadedly connected to the first screw 6, and the shaft 5 is rotatably connected between the two first screws 6. The shaft 5 can rotate between the two first screws 6, and the first screws 6 can be unscrewed from the valve body 1, which facilitates the subsequent overall disassembly of the shaft 5 and the support seat 7.
[0026] In this embodiment, as Figure 2 As shown, the top and bottom of the support base 7 are provided with a first arc-shaped groove 8, and the top and bottom of the valve body 1 are provided with a second screw 9. The second screw 9 passes through the first arc-shaped groove 8 and is threadedly connected to a fastener 10. When the support base 7 rotates, the second screw 9 slides in the first arc-shaped groove 8. Tightening the fastener 10 can lock the support base 7.
[0027] In this embodiment, as Figure 1 and Figure 2 As shown, a first adjusting nut 12 is fixed to the top of the connecting rod 11, and a second arc-shaped groove 13 is provided on the outer shell 3. The first adjusting nut 12 passes through the second arc-shaped groove 13. The first adjusting nut 12 consists of an adjusting rod and a nut. The connecting rod 11 can be rotated by holding the adjusting rod. At this time, the adjusting rod slides in the second arc-shaped groove 13. Tightening the corresponding nut can lock the connecting rod 11.
[0028] In this embodiment, as Figure 2 As shown, one end of the steel bar 14 is fixed to the spring plate 15, and the other end of the steel bar 14 is hooked on the connecting rod 11. When the second adjusting shaft 16 rotates, it can drive the arc-shaped support plate 17 to rotate. The arc-shaped support plate 17 squeezes the spring plate 15, and the steel bar 14 pulls on the connecting rod 11, thereby generating a certain elastic resistance. When the wind speed is low, the spring plate 15 plays the main role.
[0029] In this embodiment, as Figure 1 As shown, a second adjusting nut 19 is fixed on the top of the outer casing 3. A third arc-shaped groove 20 is provided on the adjusting plate 18. The second adjusting nut 19 passes through the third arc-shaped groove 20. The second adjusting nut 19 consists of an adjusting rod and a nut. When the adjusting plate 18 rotates, the adjusting rod slides in the second arc-shaped groove 13. Tightening the nut can lock the adjusting plate 18.
[0030] In this embodiment, as Figure 1 and Figure 6As shown, the electric rotating mechanism 21 includes a bracket 2101, which is fixed to the top of the outer casing 3. Electric telescopic columns 2102 are symmetrically fixed on both sides of the top of the bracket 2101. A first motor 2103 is fixed to the bottom of one of the electric telescopic columns 2102, and the bottom of the first motor 2103 is connected to a first sleeve 2104. A second motor 2105 is fixed to the bottom of the other electric telescopic column 2102, and the bottom of the second motor 2105 is connected to a second sleeve 2106. The first motor 2103 can move up and down under the telescopic action of the corresponding electric telescopic column 2102, thereby driving the first sleeve 2106. The cylinder 2104 moves up and down. After the first sleeve 2104 moves down and fits on the outside of the first adjusting shaft 402, the first sleeve 2104 rotates under the action of the first motor 2103, which can drive the first adjusting shaft 402 to rotate. When the first sleeve 2104 moves down to the bottom, it will squeeze the movable block 406. The second motor 2105 can move up and down under the extension and retraction action of the corresponding electric telescopic column 2102, thereby driving the second sleeve 2106 to move up and down. After the second sleeve 2106 moves down and fits on the outside of the second adjusting shaft 16, the second sleeve 2106 rotates under the action of the second motor 2105, which can drive the second adjusting shaft 16 to rotate.
[0031] The method of use and advantages of this invention: The quantitative air valve with airflow control structure operates as follows: like Figures 1 to 8As shown: The first adjusting nut 12 and the second adjusting nut 19 can be used selectively. When using the first adjusting nut 12, hold the adjusting rod on the first adjusting nut 12 and rotate the connecting rod 11. The adjusting rod on the first adjusting nut 12 slides in the second arc groove 13. The rotation of the connecting rod 11 drives the main shaft 401 and the adjusting blade 414 to rotate at a certain angle. Then, tighten the nut on the first adjusting nut 12 to fix the connecting rod 11, thereby fixing the adjusting blade 414 in the set position, so that there is a space for airflow between the adjusting blade 414 and the inner wall of the valve body 1. When using the second adjusting nut 19, hold the adjusting rod on the second adjusting nut 19 to control the adjusting plate 18 to rotate at a certain angle. The adjusting rod on the second adjusting nut 19 slides in the third arc groove 20. The rotation of the adjusting plate 18 drives the second adjusting shaft 16 and the arc support plate 17 to rotate. The arc support plate 17 supports several spring plates 15. The several spring plates 15 and the steel bars 14 are used to support the connecting rod 11 and the main shaft 401. The rotation of shaft 401 generates a certain elastic resistance. When the wind speed is low, spring plate 15 plays a major role, and when the wind speed is high, airbag 417 plays a major role. The above is for manual adjustment. If electric adjustment is required, the first sleeve 2104 is lowered and placed on the outside of the first adjusting shaft 402, or the second sleeve 2106 is lowered and placed on the outside of the second adjusting shaft 16. The specifications of the first adjusting shaft 402 and the second adjusting shaft 16 are different. Electric rotation of the first sleeve 2104 can drive the first adjusting shaft 402 to rotate, and electric rotation of the second sleeve 2106 can drive the second adjusting shaft 16 to rotate. When the first sleeve 2104 moves down to the bottom, it will squeeze the movable block 406. The movable block 406 and toothed plate 405 move down, and the gear 407, rotating plate 408, slide rail 409 and rotating brush 410 rotate as a whole. The rotating brush 410 automatically cleans the adjusting blade 414. At the same time, the rotating brush 410 slides between the two slide rails 409, so that the adjusting blade 414 can rotate 360 degrees.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
[0033] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the scope of protection of the present invention.
[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A quantitative air valve with an airflow control structure, comprising a valve body (1), characterized in that: The valve body (1) is symmetrically fixed with mounting frames (2) on both sides. The top of the two mounting frames (2) is fixed with a housing (3) by bolts. The valve body (1) is provided with a self-cleaning mechanism (4) which penetrates the housing (3). The valve body (1) is rotatably connected with a shaft (5). The shaft (5) is fixed with a support seat (7) on the outside. The shaft (5) penetrates the top of the valve body (1) and is connected to a connecting rod (11). One side of the connecting rod (11) is connected to a spring plate (15) by a steel strip (14). One end of the spring plate (15) is fixed to the top of the valve body (1). The top of the valve body (1) is rotatably connected with a second adjusting shaft (16). The second adjusting shaft (16) penetrates the valve body (1). The outside of the second adjusting shaft (16) is fixed with an arc-shaped support plate (17) and an adjusting plate (18). The top of the housing (3) is fixed with an electric rotating mechanism (21).
2. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The self-cleaning mechanism (4) includes a main shaft (401), which is rotatably connected to the inner side of the valve body (1). The top of the main shaft (401) passes through the outer shell (3) and is connected to the first adjusting shaft (402). A groove (403) is provided in the main shaft (401), and a first spring (404) is fixed in the groove (403). A toothed plate (405) is fixed at one end of the first spring (404), and the toothed plate (405) passes through the first adjusting shaft (402) and is connected to the movable block (406). A gear (407) is meshed on one side of the toothed plate (405), and the gear (407) is rotatably connected to the main shaft (401). A rotating plate (408) is fixed on one side of the gear (407), and slide rails (409) are symmetrically fixed on both sides of one end face of the rotating plate (408). A rotating brush (410) is slidably connected between the two slide rails (409).
3. A quantitative air valve with an airflow control structure according to claim 2, characterized in that: The rotating brush (410) has symmetrical grooves (411) on both sides. A second spring (412) is fixed between the slide rail (409) and one inner wall of the groove (411). Rollers (413) are rotatably connected to one end of the rotating brush (410) at equal intervals.
4. A quantitative air valve with an airflow control structure according to claim 2, characterized in that: Adjusting blades (414) are symmetrically fixed on both sides of the main shaft (401), and a through hole (415) is opened on one of the adjusting blades (414). A filter screen (416) is fixed in the through hole (415), and an air bag (417) is fixed on one of the adjusting blades (414).
5. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The top and bottom of the valve body (1) are both threaded with first screws (6), and the shaft (5) is rotatably connected between the two first screws (6).
6. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The top and bottom of the support base (7) are provided with a first arc groove (8), and the top and bottom of the valve body (1) are provided with a second screw (9). The second screw (9) passes through the first arc groove (8) and is threadedly connected to a fastener (10).
7. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The top of the connecting rod (11) is fixed with a first adjusting nut (12), and the outer shell (3) is provided with a second arc groove (13), through which the first adjusting nut (12) passes.
8. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: One end of the steel bar (14) is fixed to the spring plate (15), and the other end of the steel bar (14) is hooked onto the connecting rod (11).
9. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The top of the outer shell (3) is fixed with a second adjusting nut (19), and the adjusting plate (18) is provided with a third arc groove (20), through which the second adjusting nut (19) passes.
10. A quantitative air valve with an airflow control structure according to claim 1, characterized in that: The electric rotating mechanism (21) includes a bracket (2101) and the bracket (2101) is fixed to the top of the outer shell (3). Electric telescopic columns (2102) are symmetrically fixed on both sides of the top of the bracket (2101). A first motor (2103) is fixed to the bottom of one of the electric telescopic columns (2102), and the bottom of the first motor (2103) is connected to the first sleeve (2104). A second motor (2105) is fixed to the bottom of the other electric telescopic column (2102), and the bottom of the second motor (2105) is connected to the second sleeve (2106).