Blade angle adjusting type air valve device capable of improving ventilation efficiency of air pipe

Abstract

The utility model discloses a blade angle adjusting type air valve device capable of improving the ventilation efficiency of an air pipe, relates to the technical field of adjusting type air valve devices, and aims to solve the problems that dust is adhered to the surface of a blade after an existing adjusting type air valve is used for a long time, smooth flowing of air is hindered, the air valve cannot accurately control the air flow, and the ventilation efficiency of the air pipe is affected. The air valve shell is arranged on the outer side of the air valve body, the air valve blades are arranged in the middle of the interior of the air valve shell at equal intervals, the air valve blade rotating shafts are installed in the middles of the air valve blades, the air valve blades are arranged in the air valve shell, and the air valve blades are arranged in the air valve shell. A transmission bin is arranged at the upper end of the inner wall of the air valve shell, a dust removal mechanism storage bin is arranged at the lower end of the inner wall of the air valve shell, lifting lead screws are installed on the two opposite inner walls of the air valve shell, dust removal mechanism sliding blocks are installed on one sides of the lifting lead screws in a transmission mode, and a dust removal mechanism is fixedly installed between the two dust removal mechanism sliding blocks.

Description

Technical Field

[0001] This utility model relates to the technical field of adjustable air valve devices, specifically an adjustable air valve device with blade angle that improves the ventilation efficiency of air ducts. Background Technology

[0002] Regulating dampers, also known as airflow control valves or simply dampers, are indispensable central air conditioning terminal components in ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. They are primarily used in air conditioning ventilation system ducts to regulate the airflow in branch pipes. They can also be used for mixing and regulating fresh and return air, ensuring indoor air circulation and optimizing air quality. Regulating dampers feature diamond-shaped double blades with a flexible overlap between the blades, providing excellent sealing performance. By precisely controlling airflow, they achieve efficient energy utilization.

[0003] Chinese Patent Publication No. CN219472747U discloses a concealed air conditioning damper, comprising: a damper housing with a connecting assembly inside, and a support column installed at the inner end of the connecting assembly; a rotating shaft connected to the damper housing on the left side of the support column; a motor installed at the right end of the support column; a top plate installed on the upper rear end of the damper housing, with a dust filter at the lower end of the top plate; a positioning assembly installed at the front end of the top plate; the connecting assembly consisting of a baffle plate and a sealing plate; a baffle plate located at the outer end of the support column; a sealing plate installed at the outer end of the baffle plate; and a positioning assembly consisting of a fixing plate, a plug rod, a spring, and a blocking column. This concealed air conditioning damper solves the problems of existing air conditioning dampers requiring multiple parts for adjustment, resulting in wasted costs, insufficient concealment, easy dust entry after damper adjustment, difficulty in blocking dust, and inconvenience in replacing the dust filter.

[0004] The existing technical solutions described above have the following drawbacks: After prolonged use, dust accumulates on the surface of the blades of existing adjustable dampers, hindering smooth airflow and preventing precise airflow control. This also leads to wear, corrosion, or deformation of the damper blades, further affecting their normal operation. In extreme cases, dust accumulation can even cause the damper to jam or malfunction, resulting in system failure. Therefore, we propose a blade angle adjustable damper device to improve duct ventilation efficiency and address the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a blade angle adjustable damper device to improve the ventilation efficiency of ducts. This addresses the problem mentioned in the background section where existing adjustable dampers accumulate dust on the blade surface after prolonged use, hindering smooth airflow and preventing precise airflow control. Dust accumulation can also cause wear, corrosion, or deformation of the damper blades, affecting their normal operation. In extreme cases, dust buildup can even lead to damper jamming or failure, causing system malfunctions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blade angle adjustable damper device for improving the ventilation efficiency of air ducts, comprising a damper body, a damper housing on the outer side of the damper body, damper blades equidistantly arranged at the middle position inside the damper housing, a damper blade rotating shaft installed at the middle position of the damper blades, a transmission chamber at the upper end of the inner wall of the damper housing, a dust removal mechanism storage chamber at the lower end of the inner wall of the damper housing, lifting screws installed on two opposite inner walls of the damper housing, a dust removal mechanism slider driven on one side of the lifting screws, a dust removal mechanism fixedly installed between the two dust removal mechanism sliders, and an ion bar installed at the upper end inside the dust removal mechanism.

[0007] Preferably, the upper end of the damper blade shaft extends through and into the interior of the transmission chamber and is rotatably connected to the transmission chamber. An adjustment motor is fixedly installed on one side above the damper housing. The output end of the adjustment motor is connected to the upper end of the damper blade shaft via a second transmission belt, and adjacent damper blade shafts are connected via a first transmission belt.

[0008] Preferably, a dust removal mechanism storage compartment through groove is provided on the rear side of the upper end of the dust removal mechanism storage compartment, and a dust removal mechanism storage compartment partition is slidably installed below the upper end of the dust removal mechanism storage compartment.

[0009] Preferably, a gear rack is provided below the partition of the dust removal mechanism storage compartment, and a dust removal mechanism storage compartment partition drive motor is installed inside the upper end of the dust removal mechanism storage compartment. The output end of the dust removal mechanism storage compartment partition drive motor is connected to a gear via a key, and the gear meshes with the gear rack.

[0010] Preferably, the dust removal mechanism includes a dust removal mechanism housing, an ion bar, a vacuum pump, an air intake box, a filter box, an air intake pipe, an air delivery pipe, and an air outlet pipe. The dust removal mechanism housing is located outside the dust removal mechanism and is fixedly connected to the ion bar. An air intake box is installed below the ion bar, and a filter box is installed below the air intake box. A vacuum pump is installed on one side of the filter box.

[0011] Preferably, one side of the suction box is sealed to the upper end of the filter box via a suction pipe, one side of the filter box is sealed to the air inlet of the vacuum pump, and the air outlet of the vacuum pump is sealed to the air inlet of the ion bar via an air outlet pipe.

[0012] Preferably, the edges of adjacent air valve blades are misaligned and sealed together.

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

[0014] 1. When dust accumulates on the surface of the damper blades, this utility model activates the dust removal mechanism storage compartment partition drive motor. This motor drives a gear to rotate, and the gear, through meshing, causes the upper partition of the dust removal mechanism storage compartment, equipped with a toothed rack, to slide away from the storage compartment's through-slot, thus clearing the slot. The lifting screw is then activated, causing the dust removal mechanism slider to slide upwards. This slider, in turn, moves the dust removal mechanism upwards synchronously. Simultaneously, the ionizer and vacuum pump are activated. Air is drawn in from the suction box due to the negative pressure of the vacuum pump. The drawn-in air enters the filter box through the suction pipe, where dust is filtered. The filtered air then enters the vacuum pump through the air supply pipe and then through the outlet pipe into the ionizer. The ionizer generates a large amount of airflow carrying both positive and negative charges. When this airflow is blown onto the surface of the damper blades, it interacts with the static charge on the blade surface. When the damper blades carry a negative charge, they attract positive charges from the airflow; conversely, when the damper blades carry a positive charge, they attract negative charges from the airflow. This neutralizes the static charge on the damper blade surface, eliminating static electricity. This allows dust attracted by static electricity to fall off and be drawn into the suction box. This solves the problem of dust adhering to the blades of existing regulating dampers after long-term use, which obstructs smooth airflow, prevents precise airflow control, and causes wear, corrosion, or deformation of the damper blades, thus affecting normal operation. In extreme cases, dust accumulation can even cause the damper to jam or malfunction, leading to system failure.

[0015] 2. When adjusting the air valve body of this utility model, the adjusting motor is started. The adjusting motor is a servo motor. The output end of the adjusting motor drives the adjacent air valve blade shafts to rotate synchronously through the second transmission belt. The adjacent air valve blade shafts rotate synchronously through the first transmission belt, thereby driving the air valve blades to achieve synchronous and same angle rotation adjustment, thereby improving the adjustment accuracy. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is the front view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the dust removal mechanism in this utility model;

[0020] Figure 5 In this utility model Figure 3 A magnified view of a portion of area A.

[0021] In the diagram: 1. Air valve body; 2. Adjusting motor; 3. Air valve housing; 4. Dust removal mechanism storage compartment; 5. Air valve blade; 6. Air valve blade shaft; 7. Lifting screw; 8. Dust removal mechanism slider; 9. Dust removal mechanism; 10. First transmission belt; 11. Second transmission belt; 12. Transmission compartment; 13. Dust removal mechanism housing; 14. Ionizing air bar; 15. Vacuum pump; 16. Suction box; 17. Filter box; 18. Suction pipe; 19. Air delivery pipe; 20. Air outlet pipe; 21. Through slot of dust removal mechanism storage compartment; 22. Partition of dust removal mechanism storage compartment; 23. Gear rack; 24. Drive motor for dust removal mechanism storage compartment partition; 25. Gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5 An embodiment of this utility model provides a blade angle adjustable damper device for improving the ventilation efficiency of air ducts, including a damper body 1, a damper housing 3 on the outer side of the damper body 1, damper blades 5 equidistantly arranged at the middle position inside the damper housing 3, a damper blade rotating shaft 6 installed at the middle position of the damper blades 5, a transmission chamber 12 at the upper end of the inner wall of the damper housing 3, a dust removal mechanism storage chamber 4 at the lower end of the inner wall of the damper housing 3, lifting screws 7 installed on two opposite inner walls of the damper housing 3, a dust removal mechanism slider 8 driven on one side of the lifting screws 7, a dust removal mechanism 9 fixedly installed between the two dust removal mechanism sliders 8, and an ion bar 14 installed at the upper end inside the dust removal mechanism 9.

[0024] When dust accumulates on the surface of the air valve blade 5, the dust removal mechanism storage compartment partition drive motor 24 is activated. The dust removal mechanism storage compartment partition drive motor 24 drives the gear 25 to rotate. The gear 25, through meshing connection, drives the dust removal mechanism storage compartment partition 22, which is equipped with a toothed rack 23, to slide away from the dust removal mechanism storage compartment through slot 21, thereby clearing the dust removal mechanism storage compartment through slot 21. The lifting screw 7 is activated, which drives the dust removal mechanism slider 8 to slide upward. The dust removal mechanism slider 8 drives the dust removal mechanism 9 to move upward synchronously. The ion air bar 14 and vacuum pump 15 are activated. Air is drawn in from the suction box 16 due to the negative pressure of the vacuum pump 15. The drawn-in air enters the filter box 17 through the suction pipe 18. The dust in the air is filtered by the filter box 17. The filtered air enters the vacuum pump 15 through the air supply pipe 19, and then enters the ion air bar 14 through the air outlet pipe 20. The ion air bar 14 can generate a large amount of airflow with positive and negative charges. When the airflow is blown onto the surface of the damper blade 5, it interacts with the static charge on the surface of the damper blade 5. When the damper blade 5 carries a negative charge, it attracts positive charges in the airflow; when the damper blade 5 carries a positive charge, it attracts negative charges in the airflow. In this way, the static charge on the surface of the damper blade 5 is neutralized, thereby eliminating static electricity and causing the dust attracted by static electricity to fall off and be sucked into the suction box 16.

[0025] Please see Figures 2-3 The upper end of the damper blade shaft 6 passes through and extends into the interior of the transmission chamber 12 and is rotatably connected to the transmission chamber 12. An adjustment motor 2 is fixedly installed on one side above the damper housing 3. The output end of the adjustment motor 2 is connected to the upper end of the damper blade shaft 6 through the second transmission belt 11. Adjacent damper blade shafts 6 are connected through the first transmission belt 10.

[0026] Please see Figure 3 and Figure 5 A dust removal mechanism storage compartment 4 has a through slot 21 on the rear side of its upper end. A dust removal mechanism storage compartment partition 22 is slidably installed below the upper end of the dust removal mechanism storage compartment 4. A gear rack 23 is provided below the dust removal mechanism storage compartment partition 22. A dust removal mechanism storage compartment partition drive motor 24 is installed inside the upper end of the dust removal mechanism storage compartment 4. The output end of the dust removal mechanism storage compartment partition drive motor 24 is connected to a gear 25 via a key, and the gear 25 meshes with the gear rack 23.

[0027] Please see Figure 4The dust removal mechanism 9 includes a dust removal mechanism housing 13, an ion bar 14, a vacuum pump 15, an air intake box 16, a filter box 17, an air intake pipe 18, an air delivery pipe 19, and an air outlet pipe 20. The dust removal mechanism housing 13 is located outside the dust removal mechanism 9 and is fixedly connected to the ion bar 14. The air intake box 16 is installed below the ion bar 14, and the filter box 17 is installed below the air intake box 16. The vacuum pump 15 is installed on one side of the filter box 17. One side of the air intake box 16 is sealed to the upper end of the filter box 17 through the air intake pipe 18, and one side of the filter box 17 is sealed to the air inlet of the vacuum pump 15. The air outlet of the vacuum pump 15 is sealed to the air inlet of the ion bar 14 through the air outlet pipe 20.

[0028] Please see Figure 1-2 The edges of adjacent air valve blades 5 are misaligned and sealed together.

[0029] Working principle: When adjusting the damper body 1, the adjusting motor 2 is started. The adjusting motor 2 is a servo motor. The output end of the adjusting motor 2 drives the adjacent damper blade shaft 6 to rotate synchronously through the second transmission belt 11. The adjacent damper blade shafts 6 rotate synchronously through the first transmission belt 10, thereby driving the damper blades 5 to achieve synchronous and same-angle rotation adjustment, thus improving the adjustment accuracy. When the surface of the damper blades 5 is contaminated with dust, the dust removal mechanism storage compartment partition drive motor 24 is started. The dust removal mechanism storage compartment partition drive motor 24 drives the gear 25 to rotate. The gear 25 drives the dust removal mechanism storage compartment partition 2, which is equipped with a toothed rack 23, through meshing connection. 2. Slide the dust removal mechanism storage compartment through slot 21 away from the side, thereby clearing the dust removal mechanism storage compartment through slot 21. Start the lifting screw 7. The lifting screw 7 drives the dust removal mechanism slider 8 to slide upward. The dust removal mechanism slider 8 drives the dust removal mechanism 9 to move upward synchronously. Start the ion bar 14 and vacuum pump 15. Air is drawn in from the suction box 16 due to the negative pressure of the vacuum pump 15. The drawn-in air enters the filter box 17 through the suction pipe 18. The dust in the air is filtered by the filter box 17. The filtered air enters the vacuum pump 15 through the air supply pipe 19, and then enters the ion bar 14 through the air outlet pipe 20. The ion bar 14 can generate a large amount of airflow with positive and negative charges. When these airflows are blown towards the surface of the damper blade 5, they will interact with the static charge on the surface of the damper blade 5. When the damper blade 5 carries a negative charge, it will attract the positive charge in the airflow; when the damper blade 5 carries a positive charge, it will attract the negative charge in the airflow. In this way, the static charge on the surface of the air valve blade 5 is neutralized, thereby eliminating static electricity and causing the dust attracted by static electricity to fall off and be sucked in by the air intake box 16.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A blade angle adjustable damper device for improving the ventilation efficiency of ducts, comprising a damper body (1), characterized in that: A valve housing (3) is provided on the outside of the valve body (1). Valve blades (5) are equidistantly arranged at the middle position inside the valve housing (3). A valve blade shaft (6) is installed at the middle position of the valve blades (5). A transmission chamber (12) is provided at the upper end of the inner wall of the valve housing (3). A dust removal mechanism storage chamber (4) is provided at the lower end of the inner wall of the valve housing (3). Lifting screws (7) are installed on the two opposite inner walls of the valve housing (3). A dust removal mechanism slider (8) is driven and installed on one side of the lifting screw (7). A dust removal mechanism (9) is fixedly installed between the two dust removal mechanism sliders (8). An ion air bar (14) is installed at the upper end inside the dust removal mechanism (9).

2. The blade angle adjustable damper device for improving duct ventilation efficiency according to claim 1, characterized in that: The upper end of the valve blade shaft (6) extends through and into the interior of the transmission chamber (12) and is rotatably connected to the transmission chamber (12). An adjustment motor (2) is fixedly installed on one side above the valve housing (3). The output end of the adjustment motor (2) is connected to the upper end of the valve blade shaft (6) via a second transmission belt (11). Adjacent valve blade shafts (6) are connected via a first transmission belt (10).

3. The blade angle adjustable damper device for improving duct ventilation efficiency according to claim 1, characterized in that: A dust removal mechanism storage compartment through slot (21) is provided on the rear side of the upper end of the dust removal mechanism storage compartment (4), and a dust removal mechanism storage compartment partition (22) is slidably installed below the upper end of the dust removal mechanism storage compartment (4).

4. The blade angle adjustable damper device for improving duct ventilation efficiency according to claim 3, characterized in that: A toothed rack (23) is provided below the partition (22) of the dust removal mechanism storage compartment. A dust removal mechanism storage compartment partition drive motor (24) is installed inside the upper end of the dust removal mechanism storage compartment (4). A gear (25) is connected to the output end of the dust removal mechanism storage compartment partition drive motor (24) via a key. The gear (25) meshes with the toothed rack (23).

5. The blade angle adjustable damper device for improving duct ventilation efficiency according to claim 1, characterized in that: The dust removal mechanism (9) includes a dust removal mechanism housing (13), an ion bar (14), a vacuum pump (15), an air suction box (16), a filter box (17), an air suction pipe (18), an air delivery pipe (19), and an air outlet pipe (20). The dust removal mechanism housing (13) is located outside the dust removal mechanism (9). The dust removal mechanism housing (13) is fixedly connected to the ion bar (14). The air suction box (16) is installed below the ion bar (14). The filter box (17) is installed below the air suction box (16). The vacuum pump (15) is installed on one side of the filter box (17).

6. A blade angle adjustable damper device for improving duct ventilation efficiency according to claim 5, characterized in that: One side of the suction box (16) is sealed to the upper end of the filter box (17) through the suction pipe (18), one side of the filter box (17) is sealed to the air inlet of the vacuum pump (15), and the air outlet of the vacuum pump (15) is sealed to the air inlet of the ion fan bar (14) through the air outlet pipe (20).

7. A blade angle adjustable damper device for improving duct ventilation efficiency according to claim 1, characterized in that: The edges of adjacent air valve blades (5) are misaligned and sealed together.

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