Air volume adjusting valve

Abstract

The utility model discloses an air volume adjusting valve which is arranged at an air outlet of a ventilation pipeline. Comprising a valve body, blades and a control box arranged on the outer side of the valve body. A motor and a driven gear are arranged in the control box; a controller is arranged on the outer side of the control box; the motor is electrically connected with the controller, and rotation of the motor is controlled through the controller. The output end of the motor is connected with a power wheel, and the power wheel is meshed with the driven gear at the uppermost part; the blades are arranged on the rotating shaft, and wind speed sensors are arranged on the blades; the wind speed sensor is electrically connected with the controller; a detachable filter screen is arranged on the valve body, and the problems of accurate control over the ventilation quantity in the valve body and filtration of ventilation gas are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air volume regulation, and in particular relates to an air volume regulating valve. Background Art

[0002] Air volume control valves, also known as dampers, are essential central air conditioning terminal accessories for ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. They are typically used in air conditioning and ventilation system ducts to adjust the air volume in branch pipes and can also be used to adjust the mixing of fresh air and return air. Widely used in HVAC systems in industrial and mining industries and civil buildings, they precisely regulate air flow and are a key device for controlling ventilation modes in various environments. The control valve can be adjusted manually or electrically to adjust the opening of the air volume control valve, but manual control is still too cumbersome, and electric adjustment cannot accurately control the opening of the air volume control valve. Furthermore, existing filtration devices, with long-term use, can easily affect the air intake efficiency of the air inlet due to impurities adhering to the filter surface. Utility Model Content

[0003] The utility model provides an air volume regulating valve, which aims to solve the problems of accurate control of the ventilation volume in a valve body and filtering of the ventilation gas.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an air volume regulating valve, which is arranged at the air outlet of the ventilation duct; it includes a valve body, a blade and a control box arranged on the outside of the valve body; a motor and a driven gear are arranged in the control box; a controller is arranged on the outside of the control box; the motor is electrically connected to the controller, and the rotation of the motor is controlled by the controller; a power wheel is connected to the output end of the motor, and the driven gear has a group, which are arranged to mesh with each other vertically; the power wheel meshes with the uppermost driven gear; a group of rotating shafts are arranged in the valve body at intervals along the vertical direction, and the group of rotating shafts are evenly spaced. Arrangement; one end of the rotating shaft is rotatably connected to the side wall of the valve body, and the other end of the rotating shaft extends into the control box and is connected to the driven gear; the blade is arranged on the rotating shaft, and a wind speed sensor is arranged on the blade; the wind speed sensor is electrically connected to the controller; a detachable filter is provided on the valve body; a channel is vertically provided on the valve body at the front end of the blade; fixed plates are respectively provided on both sides of the inner wall of the valve body corresponding to the channel position, and the fixed plates are C-shaped and are circumferentially arranged on the inner wall of the valve body; the filter is passed through the channel, and the end of the filter is inserted between the two fixed plates for fixation.

[0005] Furthermore, the upper and lower end surfaces of the blades are planes, and when the blades are in a vertical position, adjacent blades fit together.

[0006] Furthermore, grooves are provided at the upper and lower side walls of the valve body corresponding to the positions of the blades, and arc-shaped rubber strips are provided in the grooves; when the blades are in a vertical position, the blades at the top and bottom are fitted with the arc-shaped rubber strips.

[0007] Furthermore, a lap joint is provided on the valve body and on the side walls located around the channel; a clamping plate is provided at the outer end of the filter screen, the clamping plate is fixed at the lap joint, and a handle is provided on the outer side of the clamping plate.

[0008] Furthermore, a rubber strip is provided between the two fixing plates.

[0009] Compared with the existing technology, the beneficial effects of the present invention are: the present invention can realize automatic adjustment of the blades through the electrical connection between the controller, the motor and the wind speed sensor; and a detachable filter is provided on the valve body, which is convenient for replacing the filter and improving the quality of ventilation gas; the filter is fixed in the valve body by a fixing plate, thereby improving the stability of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front structural schematic diagram of the present utility model.

[0011] Figure 2 This is a schematic structural diagram of the driven gear of the present utility model.

[0012] Figure 3 It is a side structural diagram of the utility model.

[0013] Figure 4 This is a schematic diagram of the connection structure between the valve body and the filter screen of the utility model.

[0014] Description of the drawings: 1. Valve body; 2. Rotating shaft; 3. Blade; 4. Control box; 5. Motor; 6. Power wheel; 7. Driven gear; 8. Wind speed sensor; 9. Controller; 10. Channel; 11. Filter; 12. Fixing plate; 13. Groove; 14. Arc rubber strip; 15. Joint; 16. Card plate; 17. Handle. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0017] In conjunction with the drawings, an air volume regulating valve is arranged at the air outlet of the ventilation duct; it includes a valve body 1, a blade 3 and a control box 4 arranged on the outside of the valve body 1; a motor 5 and a driven gear 7 are arranged in the control box 4; a controller 9 is arranged on the outside of the control box 4; the motor 5 is electrically connected to the controller 9 and the rotation of the motor 5 is controlled by the controller 9; a power wheel 6 is connected to the output end of the motor 5, and the driven gear 7 has a group and is arranged to mesh with each other vertically; the power wheel 6 meshes with the uppermost driven gear 7; a group of rotating shafts 2 are arranged in the valve body 1 at intervals along the vertical direction, and a group of rotating shafts 2 are arranged at equal intervals; one end of the rotating shaft 2 is rotatably connected to the side wall of the valve body 1, and the other end of the rotating shaft 2 extends into the control box 4 and is connected to the driven gear 7; the blade 3 is arranged on the rotating shaft 2, and the connection position of a group of rotating shafts and a group of driven gears can be adjusted by the size of the blade; in this embodiment, Figure 2 As shown, the driven gear 7 connected to the rotating shaft 2 has the same number of teeth, and the rotating shaft 2 and the driven gear 7 are not one-to-one corresponding; a wind speed sensor 8 is provided on the blade 3; the wind speed sensor 8 is electrically connected to the controller 9; after receiving the wind speed, the wind speed sensor 8 transmits the analog signal through the controller, sets the adjustment parameters in the controller, and controls the rotation speed of the motor 5 according to the wind speed through the controller 9, controls the opening and closing degree of the blade, and then completes the wind speed regulation and control, forms a feedback path, and realizes automatic adjustment of the blade 3.

[0018] A detachable filter 11 is provided on the valve body 1; a channel 10 is vertically provided on the valve body at the front end of the blade 3; fixed plates 12 are respectively provided on the inner wall of the valve body 1 at both sides corresponding to the position of the channel 10, and the fixed plates 12 are C-shaped and arranged on the inner wall of the valve body 1 along the circumferential direction; the filter 11 is passed through the channel 10, and the end of the filter 11 is inserted between the two fixed plates 12 for fixation; a replaceable filter 11 is provided on the valve body 1, which can effectively filter some impurities in the gas and purify the gas, and the filter 11 is inserted into the jack between the two fixed plates 12 to effectively fix the filter 11 to avoid damage to the filter 11 due to excessive ventilation.

[0019] The upper and lower end surfaces of the blades 3 are flat. When the blades 3 are in a vertical position, adjacent blades 3 fit together. Grooves 13 are provided on the upper and lower sidewalls of the valve body 1, corresponding to the blades 3. An arcuate rubber strip 14 is positioned within the groove 13. When the blades 3 are in a vertical position, the top and bottom blades 3 fit into the arcuate rubber strip 14. At this point, the blades 3 at the ends extend into the groove, improving the sealing performance of the valve body in the closed state.

[0020] A docking port 15 is provided on the valve body 1 and on the side walls located around the channel 10; a clamping plate 16 is provided on the outer end of the filter screen 11, and the clamping plate 16 is fixed at the docking port 15, and a handle 17 is provided on the outside of the clamping plate 16; at the channel, the filter screen is fixed by the docking port, and the filter screen is fixed in the valve body by the fixing plate, thereby completing the fixation of the filter screen on all sides, ensuring the stability of the filter screen and improving the filtering effect.

[0021] A rubber strip is provided between the two fixing plates 12; a flange is provided at the end of the valve body, and is fixedly connected to the ventilation duct via the flange.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

Claims

1. An air volume regulating valve, arranged at the air outlet of a ventilation duct; characterized in that: The invention comprises a valve body (1), a blade (3) and a control box (4) arranged on the outside of the valve body (1); a motor (5) and a driven gear (7) are arranged in the control box (4); a controller (9) is arranged on the outside of the control box (4); the motor (5) is electrically connected to the controller (9), and the rotation of the motor (5) is controlled by the controller (9); a power wheel (6) is connected to the output end of the motor (5), and a group of driven gears (7) are arranged to mesh with each other in the vertical direction; the power wheel (6) meshes with the uppermost driven gear (7); a group of rotating shafts (2) are arranged in the valve body (1) at intervals in the vertical direction, and the group of rotating shafts (2) are arranged at equal intervals; one end of the rotating shaft (2) is rotatably connected to the side wall of the valve body (1), and the rotating shaft (2) is arranged to mesh with the uppermost driven gear (7) in the vertical direction. The other end of the shaft (2) extends into the control box (4) and is connected to the driven gear (7); the blade (3) is arranged on the rotating shaft (2), and a wind speed sensor (8) is arranged on the blade (3); the wind speed sensor (8) is electrically connected to the controller (9); a detachable filter screen (11) is arranged on the valve body (1); a channel (10) is arranged vertically on the valve body at the front end of the blade (3); fixing plates (12) are respectively arranged on both sides of the inner wall of the valve body (1) corresponding to the position of the channel (10), and the fixing plates (12) are C-shaped and are arranged on the inner wall of the valve body (1) along the circumferential direction; the filter screen (11) is inserted into the channel (10), and the end of the filter screen (11) is inserted between the two fixing plates (12) for fixing.

2. The air volume regulating valve according to claim 1, characterized in that: The upper and lower end surfaces of the blades (3) are planes, and when the blades (3) are in a vertical position, adjacent blades (3) fit each other.

3. The air volume regulating valve according to claim 1, characterized in that: Grooves (13) are provided at the upper and lower side walls of the valve body (1) at positions corresponding to the blades (3), and arc-shaped rubber strips (14) are provided in the grooves (13); when the blades (3) are in a vertical position, the blades (3) at the top and bottom are fitted with the arc-shaped rubber strips (14).

4. The air volume regulating valve according to claim 1, characterized in that: A lap joint (15) is provided on the valve body (1) and on the side wall located around the channel (10); a clamping plate (16) is provided at the outer end of the filter screen (11), the clamping plate (16) is fixed at the lap joint (15), and a handle (17) is provided on the outer side of the clamping plate (16).

5. The air volume regulating valve according to claim 1, characterized in that: A rubber strip is arranged between the two fixing plates (12).

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