Valve opening indicating device of immersion butterfly valve

Abstract

The utility model provides a valve opening indicating device for an immersion butterfly valve, which belongs to the field of valves and comprises a valve body positioned in liquid, and a driver for driving the valve body to open and close is mounted at the upper end of the valve body; the opening degree indicating assembly comprises a transparent arc-shaped cover installed at the upper end of the driver, an opening degree indicating plate connected with the valve body is movably connected into the transparent arc-shaped cover and can rotate along with work of the valve body, and an angle indicating block is installed at the upper end of the transparent arc-shaped cover. The angle indicating block is provided with angle scale lines, and the angle indicating block is movably connected with an angle pointer connected with the opening degree indicating plate. The opening indication assembly has the advantages of being simple in structure, low in cost, high in adaptability, accurate in indication, reliable, stable and the like, can meet the opening indication requirement of the immersion butterfly valve under the working condition that the immersion depth is small, and has wide application prospects and market value.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a valve opening indicator device for a submersible butterfly valve. Background Technology

[0002] In the field of liquid transport and control systems, valves, as key components, are widely used in various industrial scenarios, especially in water treatment and petrochemical industries, where their function is to regulate and cut off fluid flow. Among them, submersible butterfly valves are widely used in water treatment plants and other similar locations due to their compact structure and ease of operation. However, in practical applications, the opening degree indication of submersible butterfly valves has always been a technical challenge.

[0003] Traditional methods of indicating the opening degree of submersible butterfly valves often rely on mechanical or electronic sensors. These sensors are susceptible to corrosion and pressure changes when submerged in liquid, leading to inaccurate readings or malfunctions. Furthermore, even in shallow immersion applications, where the sensor may not be fully submerged, factors such as liquid splashing and humid environments can still negatively impact its performance and lifespan.

[0004] To address this issue, some improved opening indication devices have emerged on the market. However, these devices are often complex in structure, expensive, and difficult to adapt to all operating conditions. Especially in situations where cost is critical or where equipment reliability requirements are extremely high, traditional opening indication methods are no longer sufficient to meet practical needs.

[0005] Therefore, developing a device that is simple in structure, low in cost, highly adaptable, and can accurately indicate valve opening in liquid environments has become a pressing technical problem to be solved in the current industrial field. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a valve opening indicator device for a submersible butterfly valve.

[0007] An embodiment of this utility model provides a valve opening indicator device for a submersible butterfly valve, comprising:

[0008] A valve body located in a liquid, wherein an actuator is installed at the upper end of the valve body to drive the valve body to open and close.

[0009] An opening indicator assembly; the opening indicator assembly is mounted on the upper end of the actuator and is located above the liquid;

[0010] The opening indicator assembly includes a transparent arc-shaped cover installed on the upper end of the actuator. An opening indicator plate connected to the valve body is movably connected inside the transparent arc-shaped cover. The opening indicator plate rotates with the operation of the valve body. An angle indicator block is installed on the upper end of the transparent arc-shaped cover. An angle indicator block is provided with angle scale lines. An angle pointer connected to the opening indicator plate is movably connected to the angle indicator block.

[0011] Furthermore, two integral connecting pieces are fixed on the transparent arc-shaped cover, and both the connecting pieces and the transparent arc-shaped cover are acrylic sheets.

[0012] Furthermore, a through hole is provided on the connecting piece, and a bolt passes through the through hole to install the connecting piece on the upper end of the driver.

[0013] Furthermore, the driver has multiple support columns mounted on its upper end, and the connecting piece is fixed to the upper end of the multiple support columns.

[0014] Furthermore, a rotating rod is fixedly connected to the bottom of the opening indicator plate, and the rotating rod is connected to the driver.

[0015] Furthermore, the angle indicator block is provided with a through hole arranged coaxially, and a short shaft is rotatably connected inside the through hole. The short shaft is fixedly connected to the opening indicator plate, and the angle pointer is fixed on the short shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Simple structure and low cost: The opening indicator component of this utility model adopts a mechanical structure, eliminating the need for complex electronic components and sensors, thereby greatly reducing manufacturing and maintenance costs. Furthermore, its simple and clear structure facilitates installation and debugging.

[0018] 2. High adaptability: Through the rational design of the transparent arc-shaped cover and the opening indicator plate, and the use of high-strength, corrosion-resistant materials, the opening indicator component of this invention can adapt to various liquid environments, including liquids with a certain degree of corrosivity and pressure variation. Furthermore, by adjusting the height and number of support columns, it can further adapt to the needs of different immersion depths.

[0019] 3. Accurate and Reliable Indication: Through the cooperation of the angle pointer and the angle scale, the opening indicator component of this invention can intuitively and accurately display the valve opening degree. At the same time, the use of rolling bearings and damping structures effectively reduces frictional resistance and swaying during rotation, improving the accuracy and stability of the indication.

[0020] 4. Easy to observe and maintain: The valve opening indicator is mounted on the upper part of the actuator and above the liquid, allowing operators to easily observe the valve opening. Furthermore, the simple structure and ease of disassembly and installation of the component facilitate subsequent maintenance and repair.

[0021] The opening indicator component of this utility model has the advantages of simple structure, low cost, strong adaptability, accurate indication and reliable stability. It can meet the opening indication requirements of submerged butterfly valves under shallow immersion conditions and has broad application prospects and market value. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a submersible butterfly valve opening indicator device described in an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the opening indicator plate in the immersion butterfly valve opening indicator device described in this embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the angle indicator block in the valve opening indicator device of a submersible butterfly valve described in an embodiment of this utility model.

[0025] Figure 4 This is a schematic diagram of the support column in the valve opening indicator device of a submersible butterfly valve described in this embodiment of the present invention.

[0026] In the above attached figures: 1 Valve body, 2 Actuator, 3 Transparent arc-shaped cover, 4 Bolt, 5 Connecting piece, 6 Opening indicator plate, 7 Rotating rod, 8 Angle indicator block, 9 Angle pointer, 10 Support column, 11 Short shaft, 12 Angle scale line. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-4 As shown, this utility model embodiment proposes a submersible butterfly valve opening indicator device, comprising:

[0029] The valve body 1 is located in the liquid. An actuator 2, which drives the valve body 1 to open and close, is installed at the upper end of the valve body 1. The actuator 2 can be electrically driven, pneumatically driven, or manually driven; this part is prior art and will not be described in detail here. The electrically driven method can use a motor drive mechanism, where the valve is opened and closed by the forward and reverse rotation of the motor. The pneumatically driven method can use pneumatic components such as cylinders, utilizing air pressure differences to actuate the valve. The manually driven method can be accomplished through manual operation components such as handwheels.

[0030] An opening indicator component is mounted on the upper end of the actuator 2 and above the liquid for easy observation. This invention is mainly applicable to applications where the immersion depth of the submersible butterfly valve is shallow, such as in water treatment plants where submersible butterfly valves are commonly used to regulate and cut off water flow. However, it is not suitable for all depths; other technologies can be used to address other depths.

[0031] The opening indicator assembly includes a transparent arc-shaped cover 3 mounted on the upper end of the actuator 2. The two ends of the transparent arc-shaped cover 3 are sealed, but it is shown open in the diagram for ease of display. The transparent arc-shaped cover 3 is made of a high-strength, corrosion-resistant, and highly transparent material, such as polycarbonate (PC) or acrylic glass (PMMA), to ensure that it is not easily damaged during long-term use and allows clear observation of the internal structure. A connecting piece 5 is provided on the transparent arc-shaped cover 3, with a through hole through which a bolt 4 passes. The bolt 4 is used to mount the connecting piece 5 to the upper end of the actuator 2, thus achieving the installation of the transparent arc-shaped cover 3. To improve installation stability, a sealing gasket can be placed between the connecting piece 5 and the upper end of the actuator 2 to prevent liquid from seeping in through the installation gap. The sealing gasket can be made of rubber, which has good sealing performance and elasticity.

[0032] An opening indicator plate 6, connected to the valve body 1, is movably connected inside the transparent arc-shaped cover 3. A rotating rod 7 is fixedly connected to the bottom of the opening indicator plate 6, and the rotating rod 7 is connected to the actuator 2. When the actuator 2 drives the valve body 1 to open or close, the rotating rod 7 rotates accordingly, thereby driving the opening indicator plate 6 to rotate, so that the opening indicator plate 6 can rotate with the operation of the valve body 1. To reduce frictional resistance during rotation, a bearing can be installed at the connection between the rotating rod 7 and the transparent arc-shaped cover 3. The bearing can be a rolling bearing, such as a deep groove ball bearing, which has the advantages of low frictional resistance and smooth operation.

[0033] An angle indicator block 8 is installed on the upper end of the transparent arc-shaped cover 3. The angle indicator block 8 has angle scale lines 12. The angle scale lines 12 should be clear and accurate, and can be made by laser engraving or printing process to ensure that they are not easily worn during long-term use. A transparent cover of the same material as the transparent arc-shaped cover 3 can be installed on the transparent arc-shaped cover 3. The transparent cover covers the angle indicator block 8 and seals it.

[0034] An angle pointer 9, connected to the opening indicator plate 6, is movably connected to the angle indicator block 8. A coaxial through hole is provided through the angle indicator block 8, and a short shaft 11 is rotatably connected within the through hole. The short shaft 11 is fixedly connected to the opening indicator plate 6, and the angle pointer 9 is fixed on the short shaft 11. When the opening indicator plate 6 rotates, the short shaft 11 drives the angle pointer 9 to rotate synchronously. The valve opening can be intuitively understood by observing the position of the angle pointer 9 on the angle scale line 12. To improve the indicating accuracy of the angle pointer 9, a damping structure, such as a rubber ring or silicone ring, can be installed between the short shaft 11 and the through hole of the angle indicator block 8. This prevents the angle pointer 9 from wobbling freely while ensuring its flexible rotation.

[0035] In another embodiment of this utility model, a plurality of support columns 10 are mounted on the upper end of the actuator 2. The support columns 10 can be made of stainless steel to improve their corrosion resistance and strength. A connecting piece 5 is fixed to the upper end of the plurality of support columns 10 by bolts 4. The arrangement of multiple support columns 10 can increase the installation height of the transparent arc-shaped cover 3, keeping it further away from the liquid and reducing the influence of the liquid on the opening indicator component. At the same time, in order to improve the connection stability between the support columns 10 and the upper end of the actuator 2, a reinforcing rib can be provided between the support columns 10 and the upper end of the actuator 2. The reinforcing rib can adopt a triangular structure to enhance the overall torsional and compressive resistance.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for indicating the opening degree of a submersible butterfly valve, characterized in that, include: A valve body (1) located in a liquid, wherein an actuator (2) for driving the valve body (1) to open and close is installed at the upper end of the valve body (1). An opening indicator assembly; the opening indicator assembly is mounted on the upper end of the driver (2) and is located above the liquid; The opening indicator assembly includes a transparent arc-shaped cover (3) installed on the upper end of the driver (2). An opening indicator plate (6) connected to the valve body (1) is movably connected inside the transparent arc-shaped cover (3). The opening indicator plate (6) will rotate with the operation of the valve body (1). An angle indicator block (8) is installed on the upper end of the transparent arc-shaped cover (3). An angle scale line (12) is provided on the angle indicator block (8). An angle pointer (9) connected to the opening indicator plate (6) is movably connected to the angle indicator block (8).

2. The submersible butterfly valve opening indicator device according to claim 1, characterized in that, in: Two integral connecting pieces (5) are fixed on the transparent arc-shaped cover (3), and both the connecting pieces (5) and the transparent arc-shaped cover (3) are acrylic sheets.

3. The submersible butterfly valve opening indicator device according to claim 2, characterized in that, in: The connecting piece (5) has a through hole through which a bolt (4) passes through and is used to install the connecting piece (5) on the upper end of the driver (2).

4. The submersible butterfly valve opening indicator device according to claim 2, characterized in that, in: The driver (2) has multiple support columns (10) mounted on its upper end, and the connecting piece (5) is fixed to the upper end of the multiple support columns (10).

5. The submersible butterfly valve opening indicator device according to claim 1, characterized in that, in: The bottom of the opening indicator plate (6) is fixedly connected to a rotating rod (7), which is connected to the driver (2).

6. The submersible butterfly valve opening indicator device according to claim 1, characterized in that, in: The angle indicator block (8) has a through hole arranged coaxially, and a short shaft (11) is rotatably connected inside the through hole. The short shaft (11) is fixedly connected to the opening indicator plate (6), and the angle pointer (9) is fixed on the short shaft (11).

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