Electric air volume regulating valve

Abstract

The utility model discloses an electric air volume regulating valve, which relates to the technical field of air volume regulating equipment, and aims to provide an electric air volume regulating valve with a simple structure and capable of ensuring that a blade is stably stressed and avoiding deformation of the blade. The technical key points include a tube body, mounting holes are provided at both ends of the tube body, a rotating shaft is rotatably connected to the tube body, a blade is provided on the side of the rotating shaft, the upper and lower ends of the rotating shaft are fixedly connected to a rocker rod, and the other end of the rocker rod is hinged to a connecting rod. The technical effect is that a driving shaft and a connecting rod are set, a driving component drives the driving shaft to rotate, and when the driving shaft rotates, the rocker rods at both ends are driven to work simultaneously, and the rocker rods at both ends push the connecting rod to move, and the connecting rod drives the rocker rod hinged thereto to rotate, and when the rocker rod rotates, the rotating shaft is driven to rotate, and the rotating shaft is used to drive the blade to rotate and adjust the angle, so as to achieve the purpose of applying force to the upper and lower ends of the rotating shaft at the same time, so that both ends of the blade can be stably fixed.

Description

Technical Field

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

[0002] The air volume regulating valve, also known as the damper, is an indispensable central air-conditioning terminal accessory in the ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air-conditioning and ventilation system pipes. It usually adopts electric adjustment. Its principle is to change the angle of the blade to limit the amount of air passing through. In this process, the airflow will continuously impact the blade, and the existing equipment usually only drives the blade at one end. When the length of the blade is long, the far end of the blade is easily deformed due to the impact of the airflow for a long time. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides an electric air volume regulating valve which has a simple structure and can ensure that the blade is stably stressed and avoid deformation of the blade.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric air volume regulating valve, comprising a tube body, mounting holes are provided at both ends of the tube body, a rotating shaft is rotatably connected in the tube body, a vane is provided on the side of the rotating shaft, a rocker arm is fixedly connected to the upper and lower ends of the rotating shaft, a connecting rod is hinged on the other end of the rocker arm, the end surfaces of the two connecting rods are connected to a driving shaft through the rocker arm, a bearing seat connected to the tube body is provided on the side of the driving shaft, a driving component is provided on the side of the driving shaft, a protective cover is provided on the side of the driving component, and the protective cover is arranged on the side of the tube body.

[0007] Preferably, the driving component comprises a driving motor, a worm and a worm wheel, wherein the worm wheel is arranged on a side of the driving shaft, and the worm is arranged at an output end of the driving motor and bonded to the worm wheel.

[0008] Preferably, a manual wheel is provided at the other end of the worm, and the manual wheel is arranged through the protective cover.

[0009] Preferably, an angle sensor is provided on the side of the driving shaft, and the angle sensor is used to detect the rotation angle of the driving shaft.

[0010] Preferably, sealing sleeves are provided at the upper and lower parts of the protective cover, and the sealing sleeves are provided on the side of the driving shaft.

[0011] Preferably, a rubber pad is provided between the blade and the inner wall of the tube body, and the rubber pad is used to close the gap between the tube body and the blade.

[0012] Preferably, a buffer plate is provided in the tube body, and the buffer plate is used to reduce the impact force of the airflow on the inner wall of the tube body.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an electric air volume regulating valve, which has the following beneficial effects:

[0015] 1. By setting a driving shaft and a connecting rod, when working, the driving component drives the driving shaft to rotate. When the driving shaft rotates, it drives the swing arms at both ends to work simultaneously, and the swing arms at both ends push the connecting rod to move. The connecting rod drives the swing arms hinged thereto to rotate. When the swing arms rotate, it drives the rotating shaft to rotate. The rotating shaft drives the blade to rotate and adjust the angle, so as to achieve the purpose of applying force to the upper and lower ends of the rotating shaft at the same time, so that both ends of the blade can be stably fixed, avoiding the problem of easy deformation of the far end caused by the one-way driving of the blade.

[0016] 2. By setting up the worm wheel and worm, the driving motor can directly drive the worm to rotate, and the worm can use its own rotation to drive the worm wheel to rotate, and the worm wheel directly drives the driving shaft to rotate. By using the transmission method of the worm and worm wheel, on the one hand, the effect of reducing the number of revolutions and increasing the torque can be achieved independently. On the other hand, the worm wheel and worm have self-locking characteristics, which can more stably limit the blade to any position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the driving component of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the blade of the utility model;

[0020] Figure 4 For this utility model Figure 2 A is an enlarged schematic diagram.

[0021] In the figure: 1. tube body; 2. mounting hole; 3. buffer plate; 4. blade; 5. rotating shaft; 6. rubber pad; 7. protective cover; 8. sealing sleeve; 9. driving component; 901. driving motor; 902. worm; 903. worm wheel; 904. manual wheel; 10. driving shaft; 11. bearing seat; 12. connecting rod; 13. rocker arm; 14. angle sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , an electric air volume regulating valve, comprising a tube body 1, mounting holes 2 are provided at both ends of the tube body 1, a rotating shaft 5 is rotatably connected in the tube body 1, a blade 4 is provided on the side of the rotating shaft 5, a swing rod 13 is fixedly connected to the upper end and the lower end of the rotating shaft 5, a connecting rod 12 is hinged to the other end of the swing rod 13, the end surfaces of the two connecting rods 12 are connected to a driving shaft 10 through the swing rod 13, a bearing seat 11 connected to the tube body 1 is provided on the side of the driving shaft 10, a driving component 9 is provided on the side of the driving component 9, a protective cover 7 is provided on the side of the tube body 1;

[0024] In the utility model, a driving shaft 10 and a connecting rod 12 are provided. The driving shaft 10 can receive the power from the driving component 9 and transmit the power to the rocker rods 13 at both ends. The rocker rods 13 are used to drive the connecting rod 12 to move. The connecting rod 12 drives the rotating shaft 5 to rotate by using the rocker rod 13 hinged thereto, thereby achieving the purpose of synchronously driving the two ends of the rotating shaft 5, so that both ends of the rotating shaft 5 can maintain stable driving and supporting force, avoiding the problem that the blade 4 is easily deformed by the impact of airflow due to being too long.

[0025] The driving component 9 includes a driving motor 901, a worm 902 and a worm wheel 903. The worm wheel 903 is arranged on the side of the driving shaft 10. The worm 902 is arranged at the output end of the driving motor 901 and is bonded to the worm wheel 903.

[0026] By providing the worm wheel 903 and the worm 902 , the transmission mode of the worm wheel 903 and the worm 902 can achieve the effect of reducing the rotation speed and increasing the torque on the one hand, and can also achieve automatic locking of the drive shaft 10 on the other hand.

[0027] A manual wheel 904 is provided at the other end of the worm 902, and the manual wheel 904 is provided through the protective cover 7;

[0028] By providing the manual wheel 904, the worm 902 can be manually rotated by using the manual wheel 904, so that the opening and closing of the regulating valve can still be controlled when the driving motor 901 cannot work.

[0029] An angle sensor 14 is provided on the side of the driving shaft 10, and the angle sensor 14 is used to detect the rotation angle of the driving shaft 10;

[0030] By providing the angle sensor 14 , the angle sensor 14 can be used to sense the rotation angle of the drive shaft 10 , thereby obtaining the inclination angle of the blade 4 , thereby achieving the effect of accurately controlling the air volume.

[0031] The upper and lower parts of the protective cover 7 are both provided with sealing sleeves 8, and the sealing sleeves 8 are arranged on the side of the driving shaft 10;

[0032] By providing the sealing sleeve 8 , the sealing sleeve 8 can seal the gap between the driving shaft 10 and the protective cover 7 without affecting the rotation of the driving shaft 10 , thereby preventing dust and water vapor from intruding into the protective cover 7 .

[0033] A rubber pad 6 is provided between the blade 4 and the inner wall of the tube body 1, and the rubber pad 6 is used to close the gap between the tube body 1 and the blade 4;

[0034] By providing the rubber pad 6, the rubber pad 6 can, on the one hand, separate the blade 4 from the tube body 1 to prevent the blade 4 from rubbing against the tube body 1 when rotating, and on the other hand, the rubber pad 6 can close the gap between the two.

[0035] A buffer plate 3 is provided inside the tube body 1, and the buffer plate 3 is used to reduce the impact force of the airflow on the inner wall of the tube body 1;

[0036] By providing the buffer plate 3, when the blade 4 is tilted, the airflow will be changed in direction by the blade 4 so that the airflow impacts the inner wall of the tube body 1. The buffer plate 3 can block the airflow impacting the tube body 1 and reduce the noise generated by the impact.

[0037] Working principle:

[0038] During operation, the driving motor 901 drives the worm wheel 903 to rotate through the worm 902, and the worm wheel 903 drives the driving shaft 10 to rotate in the bearing seat 11. When the driving shaft 10 rotates, it drives the rocker arms 13 at both ends to rotate, and the rocker arms 13 drive the connecting rod 12 hinged thereto to move, and the connecting rod 12 drives the rotating shaft 5 to rotate through the rocker arms 13 hinged thereto, and the rotating shaft 5 drives the blade 4 to rotate, and the blade 4 controls the air volume by changing its own angle. At the same time, the blade 4 is supported at both ends by the rotating shaft 5, thereby avoiding the problem of the blade 4 being easily deformed by the impact of airflow.

[0039] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. An electric air volume regulating valve, comprising a tube body (1), characterized in that: Mounting holes (2) are provided at both ends of the tube body (1); a rotating shaft (5) is rotatably connected inside the tube body (1); a blade plate (4) is provided on the side of the rotating shaft (5); a rocker rod (13) is fixedly connected to the upper end and the lower end of the rotating shaft (5); a connecting rod (12) is hingedly connected to the other end of the rocker rod (13); the end surfaces of the two connecting rods (12) are connected to a driving shaft (10) through the rocker rod (13); a bearing seat (11) connected to the tube body (1) is provided on the side of the driving shaft (10); a driving component (9) is provided on the side of the driving component (9); a protective cover (7) is provided on the side of the driving component (9); and the protective cover (7) is arranged on the side of the tube body (1).

2. The electric air volume regulating valve according to claim 1, characterized in that: The driving component (9) comprises a driving motor (901), a worm (902) and a worm wheel (903); the worm wheel (903) is arranged on the side of the driving shaft (10); the worm (902) is arranged at the output end of the driving motor (901) and is bonded to the worm wheel (903).

3. The electric air volume regulating valve according to claim 2, characterized in that: A manual wheel (904) is provided at the other end of the worm (902), and the manual wheel (904) is arranged through the protective cover (7).

4. The electric air volume regulating valve according to claim 1, characterized in that: An angle sensor (14) is provided on the side of the driving shaft (10), and the angle sensor (14) is used to detect the rotation angle of the driving shaft (10).

5. The electric air volume regulating valve according to claim 1, characterized in that: The upper and lower parts of the protective cover (7) are both provided with sealing sleeves (8), and the sealing sleeves (8) are arranged on the side of the driving shaft (10).

6. The electric air volume regulating valve according to claim 1, characterized in that: A rubber pad (6) is provided between the blade (4) and the inner wall of the tube body (1), and the rubber pad (6) is used to close the gap between the tube body (1) and the blade (4).

7. The electric air volume regulating valve according to claim 1, characterized in that: A buffer plate (3) is provided inside the tube body (1), and the buffer plate (3) is used to reduce the impact force of the airflow on the inner wall of the tube body (1).

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