Air volume control valve

Abstract

This utility model discloses an airflow regulating valve, relating to the field of airflow regulation technology. Addressing the problems raised in the background art, the following solution is proposed: The valve body has two mounting plates fixedly connected to its upper surface, and two mounting bolts threadedly connected to the lower surface of the mounting plates. An adjusting component is fixedly connected to the right side of the valve body. Through the coordinated arrangement of the adjusting component and the locking component, this utility model allows the electric push rod to move a strip-shaped movable plate left and right during use, thereby driving a rectangular transmission rod to insert into the rectangular transmission groove at the right end of the rotating shaft. This enables the servo motor to drive the rotating shaft and valve plate to rotate, thus adjusting the airflow within the valve body. Furthermore, after adjustment, the electric push rod moves the strip-shaped movable plate to the right, preventing vibrations from wind impacts on the valve plate from affecting the servo motor, thereby improving the protection of the servo motor and extending the service life of the valve body.

Description

Technical Field

[0001] This utility model relates to the field of air volume regulation technology, and in particular to an air volume regulating valve. Background Technology

[0002] Air volume regulating valves, also known as air dampers, 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. They are a common type of air volume regulating equipment.

[0003] Most existing airflow regulating valves use a motor to drive the valve plate inside the valve body to rotate, and the airflow inside the valve body is controlled by the rotation angle of the valve plate. However, in actual use, because the output shaft of the motor is directly connected to the valve plate, the valve plate inside the valve body is directly subjected to the wind force and generates vibration. This vibration is directly transmitted to the motor, making the motor susceptible to damage, resulting in poor motor protection and reducing the service life of the valve body. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an airflow regulating valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An airflow regulating valve includes a valve body. Two mounting plates are fixedly connected to the upper surface of the valve body, and two mounting bolts are threadedly connected to the lower surface of the mounting plates. Two rotating shafts are rotatably connected to the inner wall of the valve body. A valve plate is fixedly connected to the surface of each rotating shaft. A rectangular transmission groove is provided at the right end of each rotating shaft. An adjusting component is fixedly connected to the right side of the valve body. The adjusting component includes a strip frame with a right-opening structure. An electric push rod is fixedly connected to the right side of the strip frame. A strip movable plate is slidably connected to the inner bottom wall of the strip frame. Two servo motors are fixedly connected to the right side of the strip movable plate. An output shaft is fixedly connected to the output end of each servo motor. A rectangular transmission rod is fixedly connected to the end of the output shaft away from the servo motor. A locking component is fixedly connected to the right side of the valve body.

[0007] Preferably, the valve body has two circular holes on the right side that are adapted to the rotating shafts, and the right ends of the two rotating shafts pass through the two circular holes and extend into the interior of the strip frame.

[0008] Preferably, the output end of the electric push rod extends into the interior of the strip frame and is fixedly connected to the right side of the strip movable plate.

[0009] Preferably, the positions of the two servo motors correspond to the positions of the two rotating shafts, and the two rectangular transmission rods are adapted to the two rectangular transmission slots.

[0010] Preferably, the locking assembly includes a dual-axis motor, with threaded rods fixedly connected to both output ends of the dual-axis motor, and the ends of the two threaded rods away from the dual-axis motor being rotatably connected to the inner top wall and inner bottom wall of the strip frame, respectively.

[0011] Preferably, two transmission plates are slidably connected to the right side of the valve body. The upper surface of each transmission plate is provided with a threaded hole, and the two transmission plates are respectively threaded to the surfaces of two threaded rods through the two threaded holes.

[0012] Preferably, connecting blocks are fixedly connected to the opposite sides of the two transmission plates, and arc-shaped locking frames are fixedly connected to the side of the two connecting blocks away from the transmission plates, with the position of the arc-shaped locking frames corresponding to the position of the rotating shaft.

[0013] The beneficial effects of this utility model are as follows:

[0014] By adjusting the coordination of the components and locking mechanism, during use, the electric push rod drives the strip-shaped movable plate to move left and right, thereby inserting the rectangular transmission rod into the rectangular transmission slot at the right end of the rotating shaft. This allows the servo motor to drive the rotating shaft and valve plate to rotate, thus adjusting the airflow within the valve body. After adjustment, the electric push rod moves the strip-shaped movable plate to the right, preventing vibrations from the valve plate caused by wind impact from affecting the servo motor, thus improving the protection of the servo motor and extending the service life of the valve body. After the rectangular transmission rod disengages from the rectangular transmission slot, the dual-axis motor drives the two transmission plates away from each other via two threaded rods, allowing the two arc-shaped locking brackets to press against the surfaces of the two rotating shafts. This ensures the stability of the two valve plates after angle adjustment and also prevents the rectangular transmission rod from shifting when it is inserted into the rectangular transmission slot again. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an airflow regulating valve proposed in this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the regulating component of an air volume regulating valve proposed in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of a servo motor for an airflow regulating valve proposed in this utility model.

[0018] Figure 4 This is a side sectional view of the strip frame structure of an air volume regulating valve proposed in this utility model.

[0019] In the diagram: 1. Valve body; 2. Mounting plate; 3. Mounting bolt; 4. Rotating shaft; 5. Valve plate; 6. Strip frame; 7. Electric push rod; 8. Strip movable plate; 9. Servo motor; 10. Output shaft; 11. Rectangular transmission rod; 12. Dual-axis motor; 13. Threaded rod; 14. Transmission plate; 15. Connecting block; 16. Arc-shaped locking frame. Detailed Implementation

[0020] 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.

[0021] Example:

[0022] Reference Figure 1-4 A type of airflow regulating valve includes a valve body 1. Two mounting plates 2 are fixedly connected to the upper surface of the valve body 1, and two mounting bolts 3 are threadedly connected to the lower surface of the mounting plates 2. Two rotating shafts 4 are rotatably connected to the inner wall of the valve body 1. Valve plates 5 are fixedly connected to the surfaces of the two rotating shafts 4. A rectangular transmission groove is opened at the right end of each of the two rotating shafts 4. An adjusting component is fixedly connected to the right side of the valve body 1. The adjusting component includes a strip frame 6, which has a right-opening structure. An electric push rod 7 is fixedly connected to the right side of the strip frame 6. A strip movable plate 8 is slidably connected to the inner bottom wall of the strip frame 6. Two servo motors 9 are fixedly connected to the right side of the strip movable plate 8. An output shaft 10 is fixedly connected to the output end of each servo motor 9. A rectangular transmission rod 11 is fixedly connected to the end of the output shaft 10 away from the servo motor 9. A locking component is fixedly connected to the right side of the valve body 1.

[0023] Two circular holes adapted to the rotating shaft 4 are opened on the right side of the valve body 1. The right ends of the two rotating shafts 4 pass through the two circular holes and extend into the interior of the strip frame 6. The output end of the electric push rod 7 extends into the interior of the strip frame 6 and is fixedly connected to the right side of the strip movable plate 8. The positions of the two servo motors 9 correspond to the positions of the two rotating shafts 4 respectively, and the two rectangular transmission rods 11 are adapted to the two rectangular transmission grooves respectively.

[0024] When it is necessary to adjust the air volume in the duct, first open the electric push rod 7. The electric push rod 7 can drive the strip movable plate 8 to move to the left. At the same time, the two rectangular transmission rods 11 continue to move to the left until they are inserted into the rectangular transmission slots at the right end of the two rotating shafts 4. At this time, the output shaft 10 of the servo motor 9 is connected to the rotating shaft 4 through the rectangular transmission rods 11. The two servo motors 9 rotate synchronously, thereby driving the two valve plates 5 to open, so as to facilitate the control of the air volume. After the angle of the valve plate 5 is adjusted, the electric push rod 7 drives the strip movable plate 8 to move to the right, thereby driving the rectangular transmission rods 11 to disengage from the rotating shaft 4. This ensures that the vibration generated by the valve plate 5 when subjected to wind impact will not affect the servo motor 9, improving the protection effect of the servo motor 9 and extending the service life of the valve body 1.

[0025] The locking assembly includes a dual-axis motor 12, with threaded rods 13 fixedly connected to both output ends of the dual-axis motor 12. The ends of the two threaded rods 13 away from the dual-axis motor 12 are rotatably connected to the inner top wall and inner bottom wall of the strip frame 6, respectively. Two transmission plates 14 are slidably connected to the right side of the valve body 1. Threaded holes are opened on the upper surface of the two transmission plates 14. The two transmission plates 14 are threadedly connected to the surfaces of the two threaded rods 13 through the two threaded holes, respectively. Connecting blocks 15 are fixedly connected to the opposite sides of the two transmission plates 14. Arc-shaped locking frames 16 are fixedly connected to the side of the two connecting blocks 15 away from the transmission plates 14. The position of the arc-shaped locking frames 16 corresponds to the position of the rotating shaft 4.

[0026] After the servo motor 9 drives the rotating shaft 4 to rotate and open the valve plate 5 via the rectangular transmission rod 11, the dual-axis motor 12 starts and drives the two transmission plates 14 to move away from each other via the two threaded rods 13. The arc-shaped locking bracket 16 on the back of the two transmission plates 14 presses the surfaces of the two rotating shafts 4 together, thereby locking the angle of the rotating shafts 4. This ensures that the position of the rectangular transmission groove will not shift when the valve plate 5 is impacted by wind. It also ensures that the rectangular transmission rod 11 can still be inserted into the rectangular transmission groove when the valve plate 5 needs to be adjusted, and at the same time, it can maintain the stability of the valve plate 5.

[0027] Working principle: First, the valve body 1 is fixed by the mounting plate 2 and mounting bolts 3, and the air duct is assembled with the valve body 1. When it is necessary to adjust the valve body 1 to control the air volume in the air duct, the electric push rod 7 is opened first. The electric push rod 7 can drive the strip movable plate 8 to move to the left, thereby driving the servo motor 9 to approach the two rotating shafts 4. During the movement, the rectangular transmission rod 11 at the left end of the output shaft 10 of the servo motor 9 can be inserted into the rectangular transmission groove on the right side of the rotating shaft 4, thereby realizing the connection between the output shaft 10 of the servo motor 9 and the rotating shaft 4. At this time, the servo motor 9 starts and rotates synchronously, thereby driving the two valve plates 5 to open through the two rotating shafts 4, thereby controlling the valve plates by the rotation angle. 5. The opening angle allows the airflow to be controlled. After the angle adjustment is completed, the dual-axis motor 12 starts and drives the two threaded rods 13 to rotate synchronously, thereby causing the two transmission plates 14 to move away from each other. The arc-shaped locking brackets 16 on the back of the two transmission plates 14 can be locked onto the surfaces of the two rotating shafts 4 to lock the angle of the rotating shafts 4. The electric push rod 7 drives the strip movable plate 8 to move to the right, causing the rectangular transmission rod 11 to disengage from the rectangular transmission groove. Therefore, it can be ensured that the vibration generated by the valve plate 5 when subjected to wind impact will not be directly transmitted to the servo motor 9, thereby improving the protection effect of the servo motor 9 and extending the service life of the valve body 1.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air volume control valve comprising a valve body (1), characterized in that Two mounting plates (2) are fixedly connected to the upper surface of the valve body (1). Two mounting bolts (3) are threadedly connected to the lower surface of the mounting plates (2). Two rotating shafts (4) are rotatably connected to the inner wall of the valve body (1). A valve plate (5) is fixedly connected to the surface of each of the two rotating shafts (4). A rectangular transmission groove is opened at the right end of each of the two rotating shafts (4). An adjustment component is fixedly connected to the right side of the valve body (1). The adjustment component includes a strip frame (6). The strip frame (6) has a right-opening structure. An electric push rod (7) is fixedly connected to the right side of the strip frame (6). A strip movable plate (8) is slidably connected to the inner bottom wall of the strip frame (6). Two servo motors (9) are fixedly connected to the right side of the strip movable plate (8). An output shaft (10) is fixedly connected to the output end of each of the two servo motors (9). A rectangular transmission rod (11) is fixedly connected to the end of the output shaft (10) away from the servo motor (9). A locking component is fixedly connected to the right side of the valve body (1).

2. The air volume control valve according to claim 1, wherein The valve body (1) has two circular holes on its right side that are adapted to the rotating shaft (4). The right ends of the two rotating shafts (4) pass through the two circular holes and extend into the interior of the strip frame (6).

3. The air volume control valve according to claim 1, wherein The output end of the electric push rod (7) extends into the interior of the strip frame (6) and is fixedly connected to the right side of the strip movable plate (8).

4. The volume control damper of claim 1, wherein: The positions of the two servo motors (9) correspond to the positions of the two rotating shafts (4), and the two rectangular transmission rods (11) are adapted to the two rectangular transmission slots.

5. The volume control damper according to claim 1, wherein, The locking assembly includes a dual-axis motor (12), and threaded rods (13) are fixedly connected to both output ends of the dual-axis motor (12). The ends of the two threaded rods (13) away from the dual-axis motor (12) are rotatably connected to the inner top wall and inner bottom wall of the strip frame (6), respectively.

6. The volume control damper according to claim 1, wherein, Two transmission plates (14) are slidably connected to the right side of the valve body (1). The upper surface of the two transmission plates (14) is provided with threaded holes. The two transmission plates (14) are respectively threaded to the surfaces of the two threaded rods (13) through the two threaded holes.

7. A volume control damper according to claim 6, wherein Both of the two transmission plates (14) are fixedly connected to each other with a connecting block (15). An arc-shaped locking frame (16) is fixedly connected to one side of the two connecting blocks (15) away from the transmission plate (14). The position of the arc-shaped locking frame (16) corresponds to the position of the rotating shaft (4).

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