A multifunctional airflow control valve

Abstract

The utility model discloses a kind of multifunctional airflow control valve, including pipe body, the pipe body is coaxially provided with regular polygon pipe, and regular polygon pipe is fixedly connected with pipe body by multiple connecting rods, and the end of regular polygon pipe towards pipe body air inlet is blocked and set;In the utility model, starting deceleration servo motor can drive each rotating shaft to drive sector valve plate to rotate in pipe body, so as to adjust the opening of each sector valve plate, compared with the valve of single valve plate structure, the response speed of opening and closing is faster, can be used in the plant ventilation system of multiple industries, to adjust the flow of dust-containing cold / hot air, guarantee environmental safety;It can also be installed in the fan import and export pipeline of large electromechanical equipment, to balance airflow impact when starting and stopping, prevent equipment backwash damage;It can also be in the ventilation system of mining, electric power and other industries, maintain pipeline pressure stability by quickly adjusting air volume, avoid system surge, and it is practical.

Description

Technical Field

[0001] This utility model relates to a valve, specifically a multi-functional airflow control valve. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be classified as shut-off valves, check valves, regulating valves, etc.

[0003] Airflow control valves are often used in ventilation and exhaust gas treatment systems to cut off, throttle, or regulate the flow of air. However, most commonly used airflow control valves are single-plate structures, which have a slow response speed when applied to large-flow and large-diameter pipelines. Therefore, we propose a multi-functional airflow control valve. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional airflow control valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multifunctional airflow control valve includes a pipe body, within which a regular polygonal tube is coaxially arranged and fixedly connected to the pipe body via multiple connecting rods. One end of the regular polygonal tube facing the air inlet of the pipe body is sealed off. A rotating shaft is rotatably installed on each outer wall of the regular polygonal tube, and a sector-shaped valve plate is fixedly installed on the rotating shaft. A first bevel gear is fixedly sleeved on the end of the rotating shaft away from the regular polygonal tube after exiting the pipe body. Two semi-annular covers are bolted to the outer wall of the pipe body, and a geared servo motor is fixedly installed on the outer wall of one of the semi-annular covers. The first bevel gear is driven by the output shaft of the geared servo motor.

[0007] As a further embodiment of this utility model: a retaining ring is embedded in the outer wall of the rotating shaft that extends into the regular polygonal tube, and a through hole for the rotating shaft is opened on the outer wall of the tube body, and a sealing ring is embedded in the through hole. The inner wall of the sealing ring is in contact with the outer wall of the rotating shaft, and the rotating shaft is rotatably connected to the tube body through a bearing seat.

[0008] As a further embodiment of this utility model: the outer wall of the tube body is provided with a through-hole corresponding to the sector valve plate, the through-hole is adapted to the size of the sector valve plate, the rotating shaft and the sector valve plate are detachably connected by multiple bolt and nut assemblies, and both the rotating shaft and the sector valve plate are provided with through holes adapted to the bolt and nut assemblies.

[0009] As a further embodiment of this utility model: a bevel gear ring is rotatably mounted on the outer wall of the tube body located inside the semi-annular cover; the output shaft of the deceleration servo motor passes through the semi-annular cover and is fixedly sleeved with a second bevel gear; both the first bevel gear and the second bevel gear mesh with the bevel gear ring.

[0010] As a further embodiment of this utility model: the bevel gear ring is composed of several arc-shaped bevel gears connected end to end. Adjacent arc-shaped bevel gears are all connected to the same connecting block by screws, and the ends of the arc-shaped bevel gears are provided with positioning grooves that are adapted to the connecting blocks. The connecting blocks are located in the corresponding positioning grooves. The outer wall of the tube is fixedly connected to multiple arc-shaped guide rails through connecting seats. The outer wall of each arc-shaped bevel gear is fixedly installed with a slider, and the slider is slidably sleeved on the corresponding arc-shaped guide rail.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the starting geared servo motor drives each rotating shaft to rotate the sector valve plates within the pipe body, thereby adjusting the opening degree of each sector valve plate. Compared to valves with a single valve plate structure, the opening and closing response speed is faster. It can be used in ventilation systems of various industries to regulate the flow of dusty cold / hot air and ensure environmental safety. It can also be installed in the inlet and outlet pipes of large electromechanical equipment fans to balance the airflow impact during start-up and shutdown and prevent backflow damage to the equipment. In ventilation systems of industries such as mining and power, it can maintain stable pipe pressure by quickly adjusting the air volume and avoid system surge, making it highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a multifunctional airflow control valve.

[0014] Figure 2 This is a schematic diagram of the internal structure of a semi-annular cover in a multifunctional airflow control valve.

[0015] Figure 3 This is a cross-sectional structural diagram of a multifunctional airflow control valve.

[0016] Figure 4 This is a schematic diagram of the conical tooth ring in a multifunctional airflow control valve.

[0017] The components include: tube body 1, regular polygonal tube 2, connecting rod 3, rotating shaft 4, sector valve plate 5, bolt and nut assembly 6, semi-annular cover 7, first bevel gear 8, bevel gear ring 9, reduction servo motor 10, second bevel gear 11, arc-shaped bevel rack 12, connecting block 13, slider 14, arc-shaped guide rail 15, and connecting seat 16. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 In this embodiment of the utility model, a multifunctional airflow control valve includes a pipe body 1, with connecting flanges at both ends of the pipe body 1. A regular polygonal pipe 2 is coaxially arranged inside the pipe body 1, and the regular polygonal pipe 2 is fixedly connected to the pipe body 1 through multiple connecting rods 3. The end of the regular polygonal pipe 2 facing the air inlet of the pipe body 1 is sealed. A rotating shaft 4 is rotatably installed on each outer wall of the regular polygonal pipe 2. A fan-shaped valve plate 5 is fixedly installed on the rotating shaft 4. The end of the rotating shaft 4 away from the regular polygonal pipe 2 passes through the pipe body 1 and is fixedly sleeved with a first bevel gear 8. Two semi-annular covers 7 are fixedly installed on the outer wall of the pipe body 1 by bolts. A reduction servo motor 10 is fixedly installed on the outer wall of one of the semi-annular covers 7. The first bevel gear 8 is drivenly connected to the output shaft of the reduction servo motor 10.

[0020] By adopting the above-mentioned solution, this utility model, when in use, starts the geared servo motor 10, which drives each rotating shaft 4 to rotate the sector valve plate 5 inside the pipe body 1, thereby adjusting the opening degree of each sector valve plate 5. Compared with valves with a single valve plate structure, the opening and closing response speed is faster. It can be used in ventilation systems of various industries to regulate the flow of dusty cold / hot air and ensure environmental safety. It can also be installed in the inlet and outlet pipes of fans of large electromechanical equipment to balance the airflow impact during start-up and shutdown and prevent backflow damage to equipment. In addition, it can be used in ventilation systems of mining, power and other industries to maintain stable pipe pressure by quickly adjusting the air volume and avoid system surge. It has strong practicality.

[0021] Specific combination Figure 3 In one embodiment of this utility model, a retaining ring is embedded in the outer wall of the rotating shaft 4 that extends into the regular polygonal tube 2. The outer wall of the tube body 1 has a through hole for the rotating shaft 4 to pass through, and a sealing ring is embedded in the through hole. The inner wall of the sealing ring fits against the outer wall of the rotating shaft 4. The rotating shaft 4 is rotatably connected to the tube body 1 through a bearing seat. By setting the sealing ring, a sealing effect can be achieved between the tube body 1 and the rotating shaft 4 to prevent gas in the pipe 1 from leaking out through the through hole.

[0022] Specific combination Figure 1-3In one embodiment of this utility model, an insertion port is provided through the outer wall of the tube body 1 at the corresponding position of the sector valve plate 5. The insertion port is adapted to the size of the sector valve plate 5. The rotating shaft 4 and the sector valve plate 5 are detachably connected by multiple bolt and nut assemblies 6. Both the rotating shaft 4 and the sector valve plate 5 are provided with through holes adapted to the bolt and nut assemblies 6.

[0023] The socket and bolt and nut assembly 6 facilitates the quick positioning and installation of the sector valve plate 5 on the rotating shaft 4.

[0024] Specific combination Figure 2 and Figure 3 In one embodiment of the present invention, a bevel gear ring 9 is rotatably mounted on the outer wall of the tube body 1 located inside the semi-annular cover 7. After the output shaft of the deceleration servo motor 10 passes through the semi-annular cover 7, a second bevel gear 11 is fixedly sleeved thereon. Both the first bevel gear 8 and the second bevel gear 11 mesh with the bevel gear ring 9.

[0025] By setting the bevel gear ring 9 and starting the reduction servo motor 10, the bevel gear ring 9 can be driven to rotate by the second bevel gear 11. In turn, the bevel gear ring 9 and the first bevel gear 8 work together to drive the rotating shaft 4 to rotate, thereby adjusting the opening of each sector valve plate 5. The operation is simple and convenient.

[0026] Specific combination Figure 2-4 In one embodiment of this utility model, the conical ring 9 is composed of several arc-shaped conical racks 12 connected end to end. Adjacent arc-shaped conical racks 12 are all connected to the same connecting block 13 by screws, and the ends of the arc-shaped conical racks 12 are provided with positioning grooves that are adapted to the connecting blocks 13. The connecting blocks 13 are located in the corresponding positioning grooves. The outer wall of the tube body 1 is fixedly connected to multiple arc-shaped guide rails 15 through connecting seats 16. The outer wall of each arc-shaped conical rack 12 is fixedly installed with a slider 14. The slider 14 is slidably sleeved on the corresponding arc-shaped guide rail 15. The two ends of the outer wall of the arc-shaped guide rail 15 are detachably installed with stop blocks to prevent the slider 14 from falling off the arc-shaped guide rail 15.

[0027] By using a bevel ring 9 composed of several arc-shaped bevel racks 12, it is easy to install the bevel ring 9 on the pipe body 1, so as to avoid interference between the size of the connecting flange and the size setting and assembly of the bevel ring 9. Through the cooperation of the slider 14 and the arc-shaped guide rail 15, the stability of the bevel ring 9 rotating outside the pipe body 1 can be ensured.

[0028] 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 multifunctional airflow control valve, characterized in that: The tube includes a tube body (1), inside which a regular polygonal tube (2) is coaxially arranged, and the regular polygonal tube (2) is fixedly connected to the tube body (1) through multiple connecting rods (3). The end of the regular polygonal tube (2) facing the air inlet of the tube body (1) is sealed. A rotating shaft (4) is rotatably installed on each outer wall of the regular polygonal tube (2). A fan-shaped valve plate (5) is fixedly installed on the rotating shaft (4). The end of the rotating shaft (4) away from the regular polygonal tube (2) passes through the tube body (1) and is fixedly sleeved with a first bevel gear (8). Two semi-annular covers (7) are fixedly installed on the outer wall of the tube body (1) by bolts. A speed reduction servo motor (10) is fixedly installed on the outer wall of one of the semi-annular covers (7). The first bevel gear (8) is connected to the output shaft of the speed reduction servo motor (10) for transmission.

2. The multifunctional airflow control valve according to claim 1, characterized in that: The outer wall of the rotating shaft (4) is fitted with a retaining ring. The outer wall of the tube (1) has a through hole for the rotating shaft (4) to pass through, and a sealing ring is installed in the through hole. The inner wall of the sealing ring is in contact with the outer wall of the rotating shaft (4). The rotating shaft (4) is rotatably connected to the tube (1) through a bearing seat.

3. The multifunctional airflow control valve according to claim 1, characterized in that: The outer wall of the tube (1) is provided with a socket at the corresponding position of the sector valve plate (5). The socket is adapted to the size of the sector valve plate (5). The rotating shaft (4) and the sector valve plate (5) are detachably connected by multiple bolt and nut assemblies (6). Both the rotating shaft (4) and the sector valve plate (5) are provided with through holes adapted to the bolt and nut assemblies (6).

4. The multifunctional airflow control valve according to claim 1, characterized in that: The outer wall of the tube body (1) located inside the semi-annular cover (7) is rotatably fitted with a bevel gear ring (9). The output shaft of the deceleration servo motor (10) passes through the semi-annular cover (7) and is fixedly sleeved with a second bevel gear (11). The first bevel gear (8) and the second bevel gear (11) both mesh with the bevel gear ring (9).

5. A multifunctional airflow control valve according to claim 4, characterized in that: The bevel ring (9) is composed of several arc-shaped bevel racks (12) connected end to end. Adjacent arc-shaped bevel racks (12) are all connected to the same connecting block (13) by screws. The ends of the arc-shaped bevel racks (12) are provided with positioning grooves that are compatible with the connecting block (13). The connecting block (13) is located in the corresponding positioning groove. The outer wall of the tube body (1) is fixedly connected to multiple arc-shaped guide rails (15) through connecting seats (16). The outer wall of the arc-shaped bevel racks (12) is fixedly installed with sliders (14). The sliders (14) are slidably sleeved on the corresponding arc-shaped guide rails (15).

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