A valve pneumatic actuator

Abstract

The utility model belongs to the technical field of pneumatic actuators, and in particular to a valve pneumatic actuator. Even if the pneumatic actuator does not need to move, the compressor needs to run continuously to maintain the air pressure in the system, which may lead to energy waste and low system efficiency. The following scheme is proposed, including a pneumatic actuator body, the bottom end of the pneumatic actuator body is connected to a matching regulating valve, the compressed gas inlet and outlet of the pneumatic actuator body are connected to two compressed gas delivery pipes, and an energy-saving component is arranged on the compressed gas delivery pipe. When the utility model is in use, through the design of the energy-saving component, when the pneumatic actuator does not need to move, it can automatically close the manual valve, cut off the compressed gas delivery pipe, and seal the inner cavity of the pneumatic actuator. There is no need for the compressor to run continuously to maintain the air pressure in the system, which significantly reduces energy consumption and achieves energy-saving effects.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a valve pneumatic actuator. Background Art

[0002] A valve pneumatic actuator is an actuator that uses air pressure to drive the opening, closing or regulating of a valve. It is also called a pneumatic actuator or a pneumatic device, and is commonly referred to as a pneumatic head. It includes not only an actuator, but also two main parts: a regulating valve (regulating mechanism). When the control signal acts on the pneumatic actuator, a corresponding thrust is generated to push the regulating valve to operate. Under the action of the thrust of the actuator, the regulating valve will produce a certain displacement or angle of rotation, thereby directly regulating the flow of the fluid. Valve pneumatic actuators usually have the characteristics of fast response, high reliability, and strong adaptability, so they have been widely used in industrial production and facility operation.

[0003] When pneumatic valve actuators are currently in use, the compressor needs to run continuously to maintain the air pressure in the system even if the pneumatic actuator does not need to move, which may lead to energy waste and system inefficiency.

[0004] In view of the above problems, the utility model document proposes a valve pneumatic actuator. Utility Model Content

[0005] The utility model provides a valve pneumatic actuator, which solves the disadvantages in the prior art that even if the pneumatic actuator does not need to move, the compressor needs to run continuously to maintain the air pressure in the system, which may lead to energy waste and low system efficiency.

[0006] The utility model provides the following technical solutions:

[0007] A valve pneumatic actuator, comprising:

[0008] A pneumatic actuator body, wherein the bottom end of the pneumatic actuator body is connected to a matching regulating valve, and the compressed gas inlet and outlet of the pneumatic actuator body are connected to two compressed gas delivery pipes;

[0009] The energy-saving component is installed on the compressed gas delivery pipe. When the pneumatic actuator body does not need to move, it ensures that the inner cavity of the pneumatic actuator body is sealed, and there is no need for the compressor to run continuously to maintain the air pressure in the system, thereby achieving energy-saving effects.

[0010] In a possible design, the energy-saving component includes a manual valve arranged on the corresponding compressed gas delivery pipe, and a second gear is fixedly arranged on the outer ring of the two manual valve rotary disks, and the same installation box is fixedly arranged on the two compressed gas delivery pipes, and two first gears are symmetrically installed on the top of the inner wall of the installation box, and the bottom of the first gear is provided with a tooth groove matched with the second gear, and the second gear is embedded in the tooth groove, and the two first gears are meshed with the same rack.

[0011] In a possible design, a mounting bar is fixedly provided on the inner wall of the mounting box, and a slot for slidingly mounting the rack is provided on one side of the mounting bar.

[0012] In a possible design, threaded rods are rotatably mounted on both ends of the inner wall of the installation box, a matching slider is threadedly connected to the threaded rod, and the bottom of the slider is fixedly connected to the top of the rack.

[0013] In a possible design, a driving motor for driving the threaded rod to rotate is fixedly mounted on the outer wall of the installation box.

[0014] In a possible design, an L-shaped reinforcement frame for improving sliding stability is fixedly provided on one side of the sliding block, and a sliding groove for slidingly connecting the L-shaped reinforcement frame is provided on the top of the mounting bar.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0016] In the present application, during specific use, when the pneumatic actuator body does not need to move, the threaded rod can be controlled to rotate by the drive motor to move the rack toward or away from the two first gears. When the rack moves to a position where it engages with the two first gears at the same time, the two second gears will be rotated at the same time, thereby closing the two manual valves. At this time, the inner cavity of the pneumatic actuator body is sealed, the compressed gas delivery pipe is cut off, and the inner cavity of the pneumatic actuator body is sealed. There is no need for the compressor to run continuously to maintain the air pressure in the system, thereby achieving energy-saving effects. When the pneumatic actuator body needs to be used again, it is only necessary to operate the drive motor in reverse to make the rack leave the two first gears, the manual valve can be opened, and the pneumatic actuator body returns to normal working condition.

[0017] The utility model has the following beneficial effects:

[0018] Energy-saving effect: Through the design of energy-saving components, when the pneumatic actuator does not need to move, it can automatically close the manual valve, cut off the compressed gas delivery pipe, and seal the inner cavity of the pneumatic actuator. There is no need for the compressor to run continuously to maintain the air pressure in the system, which significantly reduces energy consumption and achieves energy-saving effect.

[0019] High degree of automation: By driving the motor to control the rotation of the threaded rod and then controlling the movement of the rack, the manual valve can be automatically closed and opened, which improves the automation level of the pneumatic actuator and reduces the complexity of manual operation.

[0020] Strong applicability: This valve pneumatic actuator is suitable for various occasions that need to control valve switching, especially in occasions where valves need to be switched frequently and have high requirements on energy consumption, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a valve pneumatic actuator provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the internal structure of a mounting box of a valve pneumatic actuator provided by an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a structure in which a first gear and a second gear of a valve pneumatic actuator are separated provided by an embodiment of the utility model;

[0024] Figure 4 A partial structural schematic diagram of a valve pneumatic actuator provided in an embodiment of the utility model.

[0025] Figure numerals: 1. Pneumatic actuator body; 2. Regulating valve; 3. Compressed gas inlet and outlet; 4. Compressed gas delivery pipe; 5. Mounting box; 6. Manual valve; 7. First gear; 8. Tooth groove; 9. Second gear; 10. Rack; 11. Mounting strip; 12. Slot; 13. Threaded rod; 14. Slider; 15. Drive motor; 16. L-shaped reinforcement frame; 17. Slide groove. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0029] Embodiment 1

[0030] Please refer to Figure 1-4 , a valve pneumatic actuator, the pneumatic actuator has an energy-saving component, which can ensure the sealing of the inner cavity of the pneumatic actuator when the pneumatic actuator does not need to move, and does not require the compressor to continuously run to maintain the air pressure in the system, thereby achieving energy-saving effects, including:

[0031] A pneumatic actuator body 1, model AIR TORQUE PT100, a matching regulating valve 2 is connected to the bottom of the pneumatic actuator body 1, and two compressed gas delivery pipes 4 are connected to the compressed gas inlet and outlet 3 of the pneumatic actuator body 1;

[0032] The energy-saving component is the core part of the present application. Specifically, the energy-saving component includes a manual valve 6 arranged on the corresponding compressed gas delivery pipe 4. The outer rings of the two manual valve 6 screw disks are fixedly provided with a second gear 9. The two compressed gas delivery pipes 4 are fixedly provided with the same installation box 5. The top of the inner wall of the installation box 5 is symmetrically rotated and two first gears 7 are installed. The bottom of the first gear 7 is provided with a tooth groove 8 adapted to the second gear 9. The second gear 9 is embedded in the tooth groove 8. The two first gears 7 are meshed with the same rack 10.

[0033] On the inner wall of the installation box 5, a mounting strip 11 is fixedly provided, and a slot 12 for slidingly installing the rack 10 is provided on one side of the mounting strip 11. Through the design of the slot 12, the rack 10 can slide stably on the mounting strip 11 while ensuring effective engagement with the first gear 7;

[0034] In order to realize the automatic control of the rack 10, threaded rods 13 are rotatably installed at both ends of the inner wall of the installation box 5, and a matching slider 14 is threadedly connected to the threaded rod 13, and the bottom of the slider 14 is fixedly connected to the top of the rack 10. In this way, when the threaded rod 13 rotates, the slider 14 will move on the threaded rod 13, thereby driving the rack 10 to move;

[0035] In order to conveniently control the rotation of the threaded rod 13 , a driving motor 15 for driving the threaded rod 13 to rotate is fixedly mounted on the outer wall of the mounting box 5 . The driving motor 15 can control the forward and reverse rotation of the threaded rod 13 as needed, thereby realizing the reciprocating movement of the rack 10 .

[0036] During specific use, when the pneumatic actuator body 1 does not need to move, the threaded rod 13 can be controlled to rotate by the drive motor 15 to move the rack 10 towards or away from the two first gears 7. When the rack 10 moves to a position where it is simultaneously engaged with the two first gears 7, the two second gears 9 will be rotated at the same time, thereby closing the two manual valves 6. At this time, the inner cavity of the pneumatic actuator body 1 is sealed, the compressed gas delivery pipe 4 is cut off, and the inner cavity of the pneumatic actuator body 1 is sealed. There is no need for the compressor to run continuously to maintain the air pressure in the system, thereby achieving energy-saving effects. When the pneumatic actuator body 1 needs to be used again, it is only necessary to operate the drive motor 15 in reverse to make the rack 10 leave the two first gears 7, the manual valve 6 can be opened, and the pneumatic actuator body 1 returns to normal working condition.

[0037] Embodiment 2

[0038] Improvements based on Example 1:

[0039] Please refer to Figure 3 In order to improve the sliding stability of the slider 14, an L-shaped reinforcement frame 16 is fixedly provided on one side of the slider 14, and a sliding groove 17 for slidingly connecting the L-shaped reinforcement frame 16 is provided on the top of the mounting bar 11. The L-shaped reinforcement frame 16 slides in the sliding groove 17, which can effectively prevent the slider 14 from shaking or deflecting during movement.

[0040] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 15 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0041] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A valve pneumatic actuator, characterized in that: include: A pneumatic actuator body (1), wherein the bottom end of the pneumatic actuator body (1) is connected to a matching regulating valve (2), and the compressed gas inlet and outlet (3) of the pneumatic actuator body (1) are connected to two compressed gas delivery pipes (4); The energy-saving component is arranged on the compressed gas delivery pipe (4) and ensures that the inner cavity of the pneumatic actuator body (1) is sealed when the pneumatic actuator body (1) does not need to move, and does not require the compressor to continuously run to maintain the gas pressure in the system, thereby achieving an energy-saving effect.

2. A valve pneumatic actuator according to claim 1, characterized in that: The energy-saving component comprises a manual valve (6) arranged on a corresponding compressed gas delivery pipe (4), a second gear (9) is fixedly arranged on the outer ring of the screw disk of the two manual valves (6), the same installation box (5) is fixedly arranged on the two compressed gas delivery pipes (4), two first gears (7) are symmetrically rotated and installed on the top of the inner wall of the installation box (5), the bottom of the first gear (7) is provided with a tooth groove (8) matched with the second gear (9), the second gear (9) is embedded in the tooth groove (8), and the two first gears (7) are meshed with the same rack (10).

3. A valve pneumatic actuator according to claim 2, characterized in that: A mounting strip (11) is fixedly arranged on the inner wall of the mounting box (5), and a slot (12) for slidingly mounting the rack (10) is provided on one side of the mounting strip (11).

4. A valve pneumatic actuator according to claim 3, characterized in that: Threaded rods (13) are rotatably mounted on both ends of the inner wall of the installation box (5), and a matching slider (14) is threadedly connected to the threaded rod (13), and the bottom of the slider (14) is fixedly connected to the top of the rack (10).

5. A valve pneumatic actuator according to claim 4, characterized in that: A driving motor (15) for driving the threaded rod (13) to rotate is fixedly mounted on the outer wall of the installation box (5).

6. A valve pneumatic actuator according to claim 4, characterized in that: An L-shaped reinforcement frame (16) for improving sliding stability is fixedly provided on one side of the sliding block (14), and a sliding groove (17) for slidingly connecting to the L-shaped reinforcement frame (16) is provided on the top of the mounting bar (11).

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