Electric air valve actuator

Abstract

The utility model relates to the field of air valve actuators, in particular to an electric air valve actuator which comprises an air valve actuator body, and one end of the air valve actuator body is rotatably connected with a valve shaft. The distance between the driven gear ring and the center of the tray is changed, in the multiple gear rings, when the driven gear ring is located on the upper side of the inner gear ring or the outer gear ring, the driven gear ring is located on the inner ring, under the condition that the number of rotation turns of the driven gear ring is the same, the rotation amplitude of the valve shaft is larger when the driven gear ring is located on the inner ring, and quick and instant response of an air valve actuator body is better facilitated; due to the fact that the rotation degree of the valve shaft is smaller during rotation, accurate adjustment is facilitated, and the output shaft of the air valve actuator, namely the valve shaft, can be switched between accurate rotation and rapid response and can be adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to the field of air valve actuators, in particular to an electric air valve actuator. Background Art

[0002] Air valve actuators are mainly used in air conditioning, ventilation systems and various gas processing equipment. They are responsible for controlling the direction and flow of air flow. The principle of air valve actuators is that through the built-in motor or pneumatic device, it can quickly and accurately switch or adjust the valves in the air duct according to preset instructions, so that the cold and warm air flows can flow in a certain direction, thereby achieving precise control of parameters such as temperature and humidity.

[0003] Announcement No.: CN215110872U discloses an electric pressure relief air valve actuator, which is provided with a driving device for driving the pressure relief air valve and a detection component for detecting the rotation amount of the driving device, the detection component comprising a first induction disk arranged on the rotating shaft of the driving device and a first induction switch matched with the first induction disk, and the first induction disk is provided with induction marks corresponding to the first induction switch in sequence along the circumferential direction of the rotation center thereof; the problem that some existing electric actuators have design deficiencies, low precision, cannot accurately control the pressure relief air valve to work, have slow response, damage equipment and potential safety hazards, low safety and reliability, and affect the application and development of products is solved.

[0004] In the above-mentioned prior art, an induction disk and an induction switch are arranged on the outside of the damper actuator, the induction disk is arranged on the output shaft of the damper actuator and a plurality of induction marks are arranged on the surface of the induction disk. The motor output shaft drives the actuator output shaft to rotate through the meshing between a plurality of gears, so that the induction mark on the induction disk is switched under the induction switch. However, some motors commonly used in damper actuators have a low rotation speed, which makes it difficult to switch the output shaft of the damper actuator between precise rotation and quick response, and fails to solve the problem of slow response of the damper actuator. For this reason, we propose an electric damper actuator. Utility Model Content

[0005] The purpose of the utility model is to provide an electric damper actuator to solve the problems raised in the above background technology.

[0006] To achieve the above object, an electric damper actuator comprises a damper actuator body, one end of the damper actuator body is rotatably connected to a valve shaft, the valve shaft is fixedly connected to an induction disk at an outer wall of the damper actuator body, a plurality of induction marks distributed at fixed intervals are fixedly connected to the upper surface of the induction disk, and an induction switch is installed on the upper side of the induction mark on the outer side of the damper actuator body;

[0007] The valve shaft is fixedly connected to a tray at the outer wall inside the air valve actuator body, and a plurality of gear rings are fixedly connected to the upper surface of the tray. A driven gear ring is meshed on the upper side of the gear ring, and the driven gear ring is rotatably connected to one side of the connecting frame, one end of the connecting frame is fixedly connected to the movable end of the electric push rod, and the electric push rod is fixedly installed inside the air valve actuator body, and one end of the driven gear ring is connected to a driving mechanism for controlling the rotation of the driven gear ring.

[0008] Further: the driving mechanism includes a driving shaft, one end of which is fixedly connected to the output shaft of the motor, and the motor is fixedly installed inside the air valve actuator body.

[0009] Furthermore: the lower end of the driving shaft is meshed with a driving gear ring, and the inner side of the driving gear ring is fixedly connected with a connecting shaft.

[0010] Furthermore: both ends of the connecting shaft are rotatably connected to the inside of the support frame, and the top of the support frame is fixedly connected to the inside of the air valve actuator body.

[0011] Furthermore: a plurality of connecting plates are fixedly connected between the driven gear ring and the connecting shaft, and the surfaces of the driven gear ring and the connecting frame are both provided with through holes whose size is not less than that of the connecting shaft.

[0012] Furthermore: the sizes of the plurality of gear rings are adapted to the size of the driven gear ring.

[0013] Furthermore: the shape of the connecting frame is L-shaped, and the connecting frame is slidably connected to the inside of the air valve actuator body through an electric push rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, after the electric push rod is started, the driven gear ring is pushed to the top of the gear rings at different locations by moving the connecting frame, thereby changing the distance between the driven gear ring and the center of the tray. Among several gear rings, when the driven gear ring is located at the inner ring gear ring or at the upper side of the outer ring gear ring, when it is located at the inner ring, under the condition of the same number of rotations of the driven gear ring, the valve shaft rotates more when it is located at the inner ring, which is more conducive to the rapid and immediate response of the air valve actuator body, and when it is located at the outer ring, since the valve shaft rotates less during rotation, it is more conducive to precise adjustment, so that the output shaft of the air valve actuator, that is, the valve shaft, can switch between precise rotation and quick response, and can be adjusted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic elevation diagram of an electric air valve actuator of the utility model;

[0017] Figure 2This is a schematic diagram of the inner structure of an electric air valve actuator of the utility model;

[0018] Figure 3 This is a schematic diagram of the upper surface of a tray in an electric air valve actuator of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the connection between the driven gear ring and the connecting shaft in an electric air valve actuator.

[0020] In the figure: 1. Air valve actuator body; 2. Valve shaft; 3. Induction disk; 4. Induction mark; 5. Induction switch; 6. Tray; 7. Gear ring; 8. Driven gear ring; 9. Connecting frame; 10. Electric push rod; 11. Driving mechanism; 12. Driving shaft; 13. Driving gear ring; 14. Connecting shaft; 15. Support frame; 16. Connecting plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , the figure shows a preferred embodiment of the utility model, an electric damper actuator, comprising a damper actuator body 1, one end of the damper actuator body 1 is rotatably connected to a valve shaft 2, the valve shaft 2 is located on the outer wall of the damper actuator body 1 and is fixedly connected to a sensing disk 3, a plurality of sensing marks 4 with fixed intervals are fixedly connected to the upper surface of the sensing disk 3, and a sensing switch 5 is installed on the upper side of the sensing mark 4 on the outer side of the damper actuator body 1;

[0023] The valve shaft 2 is located at the outer wall inside the air valve actuator body 1 and is fixedly connected to a tray 6. A plurality of gear rings 7 are fixedly connected to the upper surface of the tray 6. A driven gear ring 8 is meshed on the upper side of the gear ring 7. The driven gear ring 8 is rotatably connected to one side of a connecting frame 9. One end of the connecting frame 9 is fixedly connected to the movable end of an electric push rod 10. The electric push rod 10 is fixedly installed inside the air valve actuator body 1. One end of the driven gear ring 8 is connected to a driving mechanism 11 for controlling the rotation of the driven gear ring 8.

[0024] Specifically, the driving mechanism 11 includes a driving shaft 12, one end of which is fixedly connected to the output shaft of the motor. The motor is fixedly installed inside the damper actuator body 1, and the driving shaft 12 can be controlled to rotate when the motor is started.

[0025] The lower end of the driving shaft 12 is meshed with a driving ring gear 13, and the inner side of the driving ring gear 13 is fixedly connected with a connecting shaft 14. When the driving shaft 12 rotates, the driving ring gear 13 is driven to rotate in a meshing manner, and when the driving ring gear 13 rotates, it also drives the connecting shaft 14 to rotate.

[0026] Specifically, both ends of the connecting shaft 14 are rotatably connected to the inside of the supporting frame 15 , the top of the supporting frame 15 is fixedly connected to the inside of the damper actuator body 1 , and the height and position of the connecting shaft 14 are fixed by the supporting frame 15 .

[0027] It is understandable that if Figure 4 As shown, a plurality of connecting plates 16 are fixedly connected between the driven ring gear 8 and the connecting shaft 14. The surfaces of the driven ring gear 8 and the connecting frame 9 are provided with through holes whose size is not less than that of the connecting shaft 14. The connecting plates 16 can connect the driven ring gear 8 and the connecting shaft 14 so that when the connecting shaft 14 rotates, the driven ring gear 8 is driven to rotate together. The through holes are used for the connecting shaft 14 to pass through the driven ring gear 8 and the connecting frame 9.

[0028] It can be understood that the sizes of the plurality of gear rings 7 are adapted to the size of the driven gear ring 8 to facilitate the meshing of the driven gear ring 8 with different gear rings 7 before and after movement.

[0029] Among them, the shape of the connecting frame 9 is L-shaped, and the connecting frame 9 is slidably connected to the inside of the air valve actuator body 1 through an electric push rod 10. Through the movement of the connecting frame 9, the driven gear ring 8 is pushed to the top of the gear ring 7 at different locations, thereby changing the distance between the driven gear ring 8 and the center of the tray 6.

[0030] In this embodiment, when the motor is started, the drive shaft 12 can be controlled to rotate. When the drive shaft 12 rotates, the drive gear ring 13 is driven to rotate in a meshing manner. When the drive gear ring 13 rotates, the connecting shaft 14 is driven to rotate together. When the connecting shaft 14 rotates, the driven gear ring 8 is driven to rotate together through the connecting piece 16. When the driven gear ring 8 rotates, due to the meshing between the lower end and the gear ring 7, the valve shaft 2 is controlled to rotate through the tray 6, so that the air valve actuator body 1 controls the opening and closing degree of the valve connected to the air valve actuator body 1. During the process, the induction switch 5 assists in accurately controlling the rotation amount of the valve shaft 2 according to the number or position of the induction mark 4 detected by the induction;

[0031] It should be added that after the electric push rod 10 is started, the driven gear ring 8 is pushed to the top of the gear ring 7 at different locations through the movement of the connecting frame 9, thereby changing the distance between the driven gear ring 8 and the center of the tray 6. Among several gear rings 7, when the driven gear ring 8 is located on the inner ring gear 7 or on the upper side of the outer ring gear 7, it can be understood that when it is located on the inner ring, under the condition of the same number of rotations of the driven gear ring 8, the valve shaft 2 rotates more when it is located on the inner ring, which is more conducive to the rapid and immediate response of the air valve actuator body 1, and when it is located on the outer ring, the valve shaft 2 rotates less during rotation, which is more conducive to precise adjustment.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An electric damper actuator, comprising a damper actuator body (1), one end of the damper actuator body (1) being rotatably connected to a valve shaft (2), the valve shaft (2) being fixedly connected to an induction disc (3) at an outer wall located outside the damper actuator body (1), a plurality of induction marks (4) being fixedly connected to an upper surface of the induction disc (3) at regular intervals, and an induction switch (5) being installed on the outer side of the damper actuator body (1) above the induction mark (4); Features: The valve shaft (2) is fixedly connected to a tray (6) at the outer wall inside the air valve actuator body (1), and a plurality of gear rings (7) are fixedly connected to the upper surface of the tray (6). A driven gear ring (8) is meshed on the upper side of the gear ring (7), and the driven gear ring (8) is rotatably connected to one side of a connecting frame (9). One end of the connecting frame (9) is fixedly connected to the movable end of an electric push rod (10), and the electric push rod (10) is fixedly installed inside the air valve actuator body (1), and one end of the driven gear ring (8) is connected to a driving mechanism (11) for controlling the rotation of the driven gear ring (8).

2. The electric damper actuator according to claim 1, characterized in that: The driving mechanism (11) comprises a driving shaft (12), one end of the driving shaft (12) being fixedly connected to an output shaft of a motor, and the motor being fixedly mounted inside a damper actuator body (1).

3. The electric damper actuator according to claim 2, characterized in that: The lower end of the driving shaft (12) is meshed with a driving gear ring (13), and the inner side of the driving gear ring (13) is fixedly connected to a connecting shaft (14).

4. The electric damper actuator according to claim 3, characterized in that: Both ends of the connecting shaft (14) are rotatably connected to the inside of the support frame (15), and the top of the support frame (15) is fixedly connected to the inside of the air valve actuator body (1).

5. The electric damper actuator according to claim 4, characterized in that: A plurality of connecting plates (16) are fixedly connected between the driven gear ring (8) and the connecting shaft (14), and the surfaces of the driven gear ring (8) and the connecting frame (9) are both provided with through holes having a size not less than that of the connecting shaft (14).

6. The electric damper actuator according to claim 1, characterized in that: The sizes of the plurality of gear rings (7) are all compatible with the sizes of the driven gear ring (8).

7. The electric damper actuator according to claim 1, characterized in that: The connecting frame (9) is L-shaped and is slidably connected to the interior of the damper actuator body (1) via an electric push rod (10).

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