Valve actuator protection structure

Abstract

The utility model discloses a valve actuator protection structure which comprises a frame body, a first sealing ring is arranged at the bottom of the frame body, an adsorption mechanism is arranged on the inner side of the frame body, and a top cover mechanism is arranged at the top of the frame body. The protection structure is simple in structure and reasonable in design, the protection structure can be effectively fixed to the valve actuator through physical adsorption, an additional fixing device is not needed, the installation process is simplified, meanwhile, potential mechanical stress and loss are reduced, the influence of the external environment on the actuator is avoided, the service life of the actuator is prolonged, and the protection structure is suitable for popularization and application. By arranging the operation opening and the top cover, an operator can easily access the interior of the valve actuator to carry out maintenance and inspection, the whole device does not need to be disassembled, the sealing performance is enhanced through cooperation of the second sealing ring and the groove, stress generated by pressure or mechanical movement on the second sealing ring is reduced, and the durability of the second sealing ring is improved.

Description

Technical Field

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

[0002] Valves are indispensable components in fluid control systems, used to regulate, control and direct the flow of liquids or gases. There are many types of valves, including ball valves, gate valves, butterfly valves, etc., each with its own unique design and application scenarios. The valve actuator is the driving unit of the valve, responsible for converting the control signal into mechanical movement to achieve the opening, closing and regulation of the valve. Depending on the driving method, valve actuators can be divided into three types: electric, pneumatic and hydraulic, each with its specific application advantages and limitations. Electric actuators are popular for their precise control and easy integration into automation systems, pneumatic actuators are known for their fast response and powerful output torque, and hydraulic actuators are widely used for their stability and suitability for high-load environments. In modern industrial process control, the performance of valves and their actuators directly affects the safety, efficiency and reliability of the entire system.

[0003] The performance and durability of valve actuators are particularly critical in harsh working environments, such as high temperature, high pressure, strong corrosion, or occasions containing a large amount of suspended particles. For example, in the petrochemical industry, valve actuators are often exposed to corrosive gases and extreme temperature changes. These conditions may cause damage to the actuator's sealing system, which in turn affects the valve's sealing and response speed. In addition, in the mining and ore processing industries, dust and particles may invade the inside of the actuator, causing wear and operational failure. These factors not only increase maintenance costs, but may also cause production interruptions and safety accidents. Therefore, it is particularly important to develop a structure that can protect valve actuators in these harsh environments. Designing an effective protective structure can not only extend the service life of the actuator, but also ensure the continuous operation and stability of the entire system, thereby improving production efficiency and economic benefits. Utility Model Content

[0004] The purpose of the utility model is to provide a valve actuator protection structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a valve actuator protection structure, comprising a frame, a first sealing ring is arranged at the bottom of the frame, an adsorption mechanism is arranged inside the frame, and a top cover mechanism is arranged at the top of the frame;

[0006] The adsorption mechanism comprises:

[0007] An annular cavity, wherein the annular cavity is arranged inside the frame;

[0008] A pipe, wherein the pipe is communicated with the annular cavity, a suction cup is connected to the bottom of the pipe, a hollow portion is formed inside the suction cup, and the hollow portion is communicated with the pipe;

[0009] An exhaust port is provided on a side of the annular cavity.

[0010] Preferably, the top cover mechanism includes:

[0011] An operating port, the operating port is opened on the top of the frame, and a plurality of grooves are opened on the operating port;

[0012] A top cover is detachably arranged in the operation port, and a plurality of second sealing rings are arranged on the top cover.

[0013] Preferably, elastic sealant is also coated between the bottom of the frame and the first sealing ring.

[0014] Preferably, a fixing ring for enhancing the structural strength of the pipeline is provided inside the frame.

[0015] Preferably, the frame is at least partially made of transparent corrosion-resistant plastic.

[0016] Preferably, a sealing cover is threadedly connected to the exhaust port.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The valve actuator protection structure is provided with an adsorption mechanism, which includes an annular cavity, a pipe, a suction cup, a hollow part, and an exhaust port. The protection structure can be effectively fixed on the valve actuator through physical adsorption without the need for an additional fixing device, thereby simplifying the installation process and reducing potential mechanical stress and loss, avoiding the influence of the external environment on the actuator, and extending the service life of the actuator.

[0019] A valve actuator protection structure is provided with a top cover mechanism, which includes an operating port, a groove, a top cover, and a second sealing ring. The operating port and the top cover enable an operator to easily access the interior of the valve actuator for maintenance and inspection without disassembling the entire device. The cooperation between the second sealing ring and the groove enhances the sealing performance, reduces the stress generated on the second sealing ring by pressure or mechanical movement, and improves the durability of the second sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model when it is installed on the valve body;

[0021] Figure 2 This is a schematic diagram of the internal structure of the frame of the utility model;

[0022] Figure 3 This is a top view of the internal structure of the frame of the utility model;

[0023] Figure 4 It is an enlarged view of point A of the utility model;

[0024] Figure 5 It is an enlarged view of point B of the present utility model.

[0025] In the figure: 1. frame; 2. first sealing ring; 3. adsorption mechanism; 301. annular cavity; 302. pipeline; 303. suction cup; 304. hollow part; 305. exhaust port; 4. top cover mechanism; 401. operation port; 402. groove; 403. top cover; 404. second sealing ring; 5. elastic sealant; 6. fixing ring; 7. sealing cover; 8. valve body. 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 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.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0030] See also Figure 1-5 As shown, the utility model provides a valve actuator protection structure technical solution: a valve actuator protection structure, including a frame 1, a first sealing ring 2 is arranged at the bottom of the frame 1, an adsorption mechanism 3 is arranged inside the frame 1, and a top cover mechanism 4 is arranged on the top of the frame 1;

[0031] The adsorption mechanism 3 includes an annular cavity 301, a pipe 302, and an exhaust port 305. The annular cavity 301 is opened inside the frame 1, and the pipe 302 is connected to the annular cavity 301. The bottom of the pipe 302 is connected to a suction cup 303, and a hollow part 304 is opened inside the suction cup 303, which is connected to the pipe 302. The exhaust port 305 is opened on the side of the annular cavity 301. In the specific implementation process, the bottom of the pipe 302 can be adjusted according to the curvature change of the surface of the valve body 8, for example, the connecting part of the pipe 302 and the suction cup 303 is bent to achieve a better adsorption effect. During installation, it is necessary to place the frame 1 on the upper end of the actuator and cover it, and then press the frame 1 until the bottom suction cup 303 is completely attached to the surface of the valve body 8, and finally the exhaust port 305 is sealed. At this time, the entire protective structure will be fixed on the surface of the valve body 8 to isolate the internal and external environments of the actuator and prevent the actuator from being affected by the external environment.

[0032] The top cover mechanism 4 includes an operation port 401 and a top cover 403. The operation port 401 is opened at the top of the frame 1. A plurality of grooves 402 are opened on the operation port 401. The top cover 403 is detachably arranged in the operation port 401. A plurality of second sealing rings 404 are arranged on the top cover 403. In the specific implementation process, the positions of the grooves 402 on the operation port 401 and the second sealing rings 404 on the top cover 403 correspond to each other, and the sizes are adapted to each other. When it is necessary to operate the inside of the frame 1, the top cover 403 can be directly pulled out for operation. After the operation is completed, the top cover 403 is covered. At this time, each second sealing ring 404 will enter the groove 402. On the one hand, the second sealing ring 404 can provide a better sealing effect. On the other hand, the groove 402 can disperse the stress generated on the second sealing ring 404 due to pressure or mechanical movement, thereby preventing the second sealing ring 404 from being worn or damaged prematurely.

[0033] An elastic sealant 5 is also coated between the bottom of the frame 1 and the first sealing ring 2. The elastic sealant 5 can provide an additional sealing layer to help fill the tiny gap that may exist between the first sealing ring 2 and the frame 1, thereby further protecting the actuator structure.

[0034] A fixing ring 6 is provided inside the frame 1 , and the fixing ring 6 can provide additional support to enhance the compression and bending resistance of the pipe 302 , especially when the frame 1 is being pressed.

[0035] The frame 1 is at least partially made of a transparent corrosion-resistant plastic. In a specific implementation, the plastic may be polycarbonate (PC), polyethylene (PE), polyvinyl chloride (PVC), etc. This design allows the operator to intuitively view the internal state of the valve actuator, helps the operator to quickly identify any potential problems, realize real-time status monitoring, and optimize maintenance and operation processes.

[0036] A sealing cover 7 is threadedly connected to the exhaust port 305. In a specific implementation process, a sealing gasket can be added to the contact portion between the sealing cover 7 and the exhaust port 305 to enhance the sealing effect. By providing the sealing cover 7 and connecting the sealing cover 7 through threads, higher mechanical stability can be provided, so that the sealing cover 7 is not easily loosened due to vibration or impact. This design is more important for long-term applications or in dynamic environments.

[0037] The working principle of the utility model is as follows:

[0038] When using a valve actuator protection structure of the present embodiment, the frame 1 is first placed on the upper end of the valve actuator to ensure that the bottom of the frame 1 is completely aligned with the contact surface of the actuator. Next, the operator presses the frame 1 so that the first sealing ring 2 at the bottom of the frame 1 is in close contact with the surface of the actuator. Subsequently, the suction cup 303 is pressed to expel the air inside the suction cup 303, and finally the exhaust port 305 is sealed to form a negative pressure environment. The negative pressure causes the suction cup 303 to be tightly adsorbed on the surface of the valve body 8, ensuring that the frame 1 fixes and further seals the actuator, and also isolates the internal and external environments of the actuator, thereby increasing the service life of the valve actuator. When inspection or maintenance of the valve actuator is required, the top cover 403 can be easily accessed by simply opening it. The operation is both efficient and convenient, and is suitable for long-term use.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A valve actuator protection structure, comprising a frame (1), characterized in that: A first sealing ring (2) is arranged at the bottom of the frame (1), an adsorption mechanism (3) is arranged inside the frame (1), and a top cover mechanism (4) is arranged at the top of the frame (1); The adsorption mechanism (3) comprises: An annular cavity (301), wherein the annular cavity (301) is arranged inside the frame (1); A pipe (302), the pipe (302) and the annular cavity (301) are in communication with each other, a suction cup (303) is connected to the bottom of the pipe (302), a hollow portion (304) is provided inside the suction cup (303), and the hollow portion (304) is in communication with the pipe (302); An exhaust port (305), wherein the exhaust port (305) is opened on a side surface of the annular cavity (301).

2. A valve actuator protection structure according to claim 1, characterized in that: The top cover mechanism (4) comprises: An operating port (401), the operating port (401) being disposed on the top of the frame (1), and the operating port (401) being provided with a plurality of grooves (402); A top cover (403), the top cover (403) is detachably arranged in the operating port (401), and a plurality of second sealing rings (404) are arranged on the top cover (403).

3. A valve actuator protection structure according to claim 1, characterized in that: An elastic sealant (5) is also applied between the bottom of the frame (1) and the first sealing ring (2).

4. A valve actuator protection structure according to claim 1, characterized in that: A fixing ring (6) for enhancing the structural strength of the pipeline (302) is provided on the inner side of the frame (1).

5. The valve actuator protection structure according to claim 1, characterized in that: The frame (1) is at least partially made of transparent corrosion-resistant plastic.

6. A valve actuator protection structure according to claim 1, characterized in that: A sealing cover (7) is threadedly connected to the exhaust port (305).

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