Control valve actuating mechanism

Abstract

The utility model relates to the technical field of actuating mechanisms, and discloses a control valve actuating mechanism which comprises a valve, the top of the valve is fixedly connected with a detaching assembly used for detaching parts, the two sides of the valve are fixedly connected with air cylinders, the close sides of the two air cylinders are fixedly connected to the outer side of the valve, and the two ends of the two air cylinders are fixedly connected to the valve. A linkage block is fixedly connected to the driving end of the air cylinder, a rotating ring is fixedly connected to one side of the linkage block, three second limiting blocks are rotatably connected to the interior of the rotating ring, a rotating plate is slidably connected to the interiors of the second limiting blocks, and a connecting rod is fixedly connected to one side of the rotating plate. According to the quick butt joint device, quick butt joint of the valve and the pipeline is achieved, an operator does not need to carry out close-range operation on the installation site of the valve and the pipeline, some dangerous environments such as high-temperature, high-pressure and poisonous and harmful gas environments are very important, and on an oil exploitation platform, a plurality of valves and pipelines are located in dangerous areas.

Description

Technical Field

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

[0002] The control valve actuator is a device that drives the control valve according to the control signal. It has the advantages of precise control, automated operation, and force amplification. It is widely used in many industries such as industrial process control (chemical, oil and gas, pharmaceutical, etc.), energy (electricity, HVAC) and water treatment (water treatment, sewage treatment), and plays a key role in controlling various fluid parameters.

[0003] The control valve actuator is generally composed of a power source part, a transmission part, a control part and other structures. The pneumatic actuator receives the air pressure signal and drives the cylinder after conversion by the positioner, drives the valve stem through the transmission parts such as the connecting rod, and realizes precise control by the position feedback device; the electric actuator receives the electrical signal and drives the motor after processing by the controller, drives the valve stem through the transmission devices such as the reducer, and achieves closed-loop control with the help of the position sensor; the hydraulic actuator uses hydraulic oil as the power source, and controls the hydraulic cylinder through the hydraulic pump pressurization and hydraulic servo valve or proportional valve signal conversion, drives the valve stem through the connecting rod, etc., and relies on the displacement sensor to achieve precise control. The three use air pressure, electricity, and hydraulic pressure to drive the control valve and achieve precise adjustment.

[0004] Some existing control valve actuators are unable to achieve pipeline docking without tools. In some scenarios where emergency repairs or quick replacement of control valves are required, tools must be used to complete the docking, which takes a lot of time to find and use the tools, resulting in a cumbersome and time-consuming installation process, seriously affecting work efficiency, and further extending the downtime of the entire production process or device, causing unnecessary economic losses. Therefore, a control valve actuator is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the present invention provides a control valve actuator, which aims to improve the problem in the prior art that pipelines cannot be connected without tools.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A control valve actuator comprises a valve, the top of the valve is fixedly connected to a disassembly assembly for disassembling parts, both sides of the valve are fixedly connected to a cylinder, the adjacent sides of the two cylinders are fixedly connected to the outside of the valve, the driving end of the cylinder is fixedly connected to a linkage block, one side of the linkage block is fixedly connected to a rotating ring, the interior of the rotating ring is rotatably connected to three limiting blocks 2, the interior of the limiting blocks 2 is slidably connected to a rotating plate, and one side of the rotating plate is fixedly connected to a connecting rod;

[0008] As a further description of the above technical solution:

[0009] The disassembly assembly includes a fixed column, the bottom of the fixed column is fixedly connected to the top of the valve, the outer side of the fixed column is fixedly connected to a plurality of limiting blocks, the outer side of the fixed column is slidably connected to a connecting column, and the top of the connecting column is fixedly connected to the control valve;

[0010] As a further description of the above technical solution:

[0011] A spring is fixedly connected to the interior of the fixed column, and a sliding ring is fixedly connected to the top of the spring;

[0012] As a further description of the above technical solution:

[0013] A slot is provided inside the connecting column, and the outer side of the limiting block 1 is slidably connected to the inside of the slot;

[0014] As a further description of the above technical solution:

[0015] The outer side of the limiting block 2 is fixedly connected to a limiting rod, and the outer side of the limiting rod is rotatably connected to the inside of the rotating ring;

[0016] As a further description of the above technical solution:

[0017] The inner side of the rotating ring is rotatably connected to the outer side of the valve, and the outer side of the rotating plate is slidably connected to the inner side of the rotating ring;

[0018] As a further description of the above technical solution:

[0019] The outer side of the sliding ring is slidably connected to the inside of the fixed column, and the top of the sliding ring is slidably connected to the inside of the connecting column;

[0020] As a further description of the above technical solution:

[0021] The other end of the connecting rod is rotatably connected to the outer side of the valve, and the clamping groove is configured to be L-shaped.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the linkage block is driven by the starting cylinder, the linkage block drives the rotating ring, the rotating ring drives the limiting block, and the limiting block drives the rotating plate, thereby realizing the rapid connection between the valve and the pipeline. The operator does not need to perform close operation at the installation site of the valve and the pipeline. Some dangerous environments such as high temperature, high pressure, and toxic and harmful gas environments are very important. On the oil extraction platform, many valves and pipelines are located in dangerous areas. Through remote control, the operator can complete the connection operation in a safe position, ensuring the safety of the personnel.

[0024] 2. In the present invention, the fixing column cooperates with the spring, the spring cooperates with the sliding ring, the fixing column cooperates with the limiting block 1, and the limiting block 1 cooperates with the connecting column, so that the control valve can be disassembled in time when it needs maintenance. When the control valve needs to be replaced with a new valve with more precise control, or a part is damaged and needs to be replaced, this easy-to-disassemble structure is particularly important. Maintenance personnel can easily remove the old control valve and replace it with a new or repaired valve without causing too much interference to other parts of the entire pipeline device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the control valve actuator proposed by the utility model;

[0026] Figure 2 This is a structural diagram of the connecting column of the control valve actuator proposed by the utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Valve; 2. Fixed column; 3. Spring; 4. Sliding ring; 5. Limiting block 1; 6. Connecting column; 7. Control valve; 8. Cylinder; 9. Linkage block; 10. Rotating ring; 11. Limiting block 2; 12. Rotating plate; 13. Slot; 14. Connecting rod; 15. Limiting rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 4 The utility model provides an embodiment of a control valve actuator, including a valve 1, which is made of sturdy and durable stainless steel with good corrosion resistance and strength. The top of the valve 1 is fixedly connected with a disassembly component for disassembling parts. The disassembly component can play a key role in convenient operation when the relevant parts of the control valve 7 need to be replaced or repaired.

[0033] Cylinders 8 are fixedly connected to both sides of the valve 1. Cylinders 8 are made of high-strength aluminum alloy, are light in weight and can withstand a certain pressure. The adjacent sides of the two cylinders 8 are fixedly connected to the outside of the valve 1. The driving end of the cylinder 8 is fixedly connected to a linkage block 9. The linkage block 9 is made of rigid material and can transmit power stably. One side of the linkage block 9 is fixedly connected to a rotating ring 10, which is made of wear-resistant alloy steel.

[0034] The inner side of the rotating ring 10 is rotatably connected to the outer side of the valve 1. The inner side of the rotating ring 10 is rotatably connected to three limiting blocks 2 11. The outer side of the limiting block 2 11 is fixedly connected to a limiting rod 15. The limiting rod 15 can effectively constrain the movement trajectory of the limiting block 2 11. The outer side of the limiting rod 15 is rotatably connected to the inner side of the rotating ring 10.

[0035] The interior of the limiting block 11 is slidably connected to a rotating plate 12. The surface of the rotating plate 12 is smooth and has a certain elasticity, which can better adapt to movement changes when cooperating with the limiting block 11. The outer side of the rotating plate 12 is slidably connected to the inside of the rotating ring 10. One side of the rotating plate 12 is fixedly connected to a connecting rod 14. The connecting rod 14 can rotate flexibly and has sufficient strength. The other end of the connecting rod 14 is rotatably connected to the outside of the valve 1.

[0036] Reference Figure 2 、 Figure 3 The disassembly component includes a fixed column 2, which is made of sturdy engineering plastic material with certain insulation and wear resistance. The inside of the fixed column 2 is fixedly connected with a spring 3, which is made of highly elastic alloy steel and can be repeatedly expanded and contracted without fatigue deformation. The top of the spring 3 is fixedly connected with a sliding ring 4, which has a smooth surface and a hard texture. The top of the sliding ring 4 is slidably connected to the inside of the connecting column 6, and the outer side of the sliding ring 4 is slidably connected to the inside of the fixed column 2.

[0037] The bottom of the fixed column 2 is fixedly connected to the top of the valve 1, and the outer side of the fixed column 2 is fixedly connected with multiple limiting blocks 5. The limiting blocks 5 have regular shapes and a certain surface roughness to increase friction. The outer side of the fixed column 2 is slidably connected with a connecting column 6. The connecting column 6 is made of high-quality carbon steel. A card slot 13 is provided inside the connecting column 6. The card slot 13 is set to be L-shaped. The outer side of the limiting block 5 is slidably connected to the inside of the card slot 13. The top of the connecting column 6 is fixedly connected to the control valve 7.

[0038] Working principle: When the staff needs to connect the valve 1 to the pipeline, they can slide the pipeline into the inside of the rotating ring 10, and then start the cylinder 8 to push the linkage block 9. One side of the linkage block 9 is connected to the outside of the rotating ring 10, so that the rotating ring 10 can be brought. The interior of the rotating ring 10 is connected to three limiting blocks 2 11, which are connected to a rotating plate 12. One side of the rotating plate 12 is connected to one side of the valve 1 through a connecting rod 14. When the rotating ring 10 rotates, the rotating plate 12 will be driven by the limiting block 2 11. Because one side of the rotating plate 12 is connected to the outside of the valve 1, it will affect the rotation of the limiting block 2 11 following the rotating ring 10 to a certain extent, so that the other end of the rotating plate 12 rotates inward, thereby fixing the pipeline.

[0039] When the control valve 7 needs maintenance, the control valve 7 can be rotated to drive the connecting column 6 at the bottom of the control valve 7. The top of the valve 1 is connected to the fixed column 2, and the outer sides of the fixed column 2 are connected with the limiting blocks 5. In this way, the valve control 7 can be restricted by the groove 13 opened inside the connecting column 6. The interior of the fixed column 2 is connected to multiple springs 3, and the top of the spring 3 is connected to a sliding ring 4. In this way, when the fixed column 2 is slid into the interior of the connecting column 6, the sliding ring 4 can contact the interior of the connecting column 6, thereby pressing the spring 3 downward through the sliding ring 4. When the pressure disappears, the spring 3 will rebound, and at this time the limiting block 5 is inside the groove 13. At this time, the spring 3 pushes the sliding ring 4, and the sliding ring 4 pushes the connecting column 6. In this way, the control valve 7 can be restricted by the tight connection between the connecting column 6 and the limiting block 5.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A control valve actuator, comprising a valve (1), characterized in that: The top of the valve (1) is fixedly connected with a disassembly assembly for disassembling parts, and both sides of the valve (1) are fixedly connected with cylinders (8), and the adjacent sides of the two cylinders (8) are fixedly connected to the outside of the valve (1), and the driving end of the cylinder (8) is fixedly connected with a linkage block (9), and one side of the linkage block (9) is fixedly connected with a rotating ring (10), and the interior of the rotating ring (10) is rotatably connected with three limiting blocks (11), and the interior of the limiting blocks (11) is slidably connected with a rotating plate (12), and one side of the rotating plate (12) is fixedly connected with a connecting rod (14).

2. The control valve actuator according to claim 1, characterized in that: The disassembly assembly comprises a fixed column (2), the bottom of the fixed column (2) is fixedly connected to the top of the valve (1), a plurality of limiting blocks (5) are fixedly connected to the outside of the fixed column (2), a connecting column (6) is slidably connected to the outside of the fixed column (2), and the top of the connecting column (6) is fixedly connected to the control valve (7).

3. The control valve actuator according to claim 2, characterized in that: A spring (3) is fixedly connected to the interior of the fixed column (2), and a sliding ring (4) is fixedly connected to the top of the spring (3).

4. The control valve actuator according to claim 2, characterized in that: A slot (13) is provided inside the connecting column (6), and the outer side of the limiting block (5) is slidably connected to the inside of the slot (13).

5. The control valve actuator according to claim 1, characterized in that: The outer side of the second limiting block (11) is fixedly connected to a limiting rod (15), and the outer side of the limiting rod (15) is rotatably connected to the inside of the rotating ring (10).

6. The control valve actuator according to claim 1, characterized in that: The inner side of the rotating ring (10) is rotatably connected to the outer side of the valve (1), and the outer side of the rotating plate (12) is slidably connected to the inside of the rotating ring (10).

7. The control valve actuator according to claim 3, characterized in that: The outer side of the sliding ring (4) is slidably connected to the inside of the fixed column (2), and the top of the sliding ring (4) is slidably connected to the inside of the connecting column (6).

8. The control valve actuator according to claim 4, characterized in that: The other end of the connecting rod (14) is rotatably connected to the outside of the valve (1), and the clamping groove (13) is configured to be L-shaped.

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