Pneumatic V-shaped adjusting ball valve for crystallization medium working condition

Abstract

The utility model discloses a pneumatic V-shaped adjusting ball valve for crystallization medium working conditions, and relates to the field of ball valves. The pneumatic V-shaped adjusting ball valve for the crystallization medium working condition comprises a valve body and a pneumatic actuator above the valve body, a connecting unit is arranged between the valve body and the pneumatic actuator, and the valve body and the pneumatic actuator can be rapidly assembled and disassembled through the connecting unit. According to the pneumatic V-shaped adjusting ball valve for the crystallization medium working condition, the spline sleeve is arranged between the first spline shaft and the second spline shaft in a sleeving mode, power transmission between the valve rod and the driving rod is achieved through spline connection, and meanwhile the valve body and the pneumatic actuator can be rapidly disassembled conveniently; and during installation, the spline sleeve slides downwards, so that the spline sleeve and the second spline shaft can be quickly connected, and observation and installation are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a pneumatic V-type regulating ball valve for crystallizing media conditions. Background Technology

[0002] In industrial production, especially in scenarios involving crystalline media, pneumatic V-type regulating ball valves are widely used as a key fluid control device to regulate parameters such as flow rate and pressure of media in pipelines. Crystallizing media typically have characteristics such as high viscosity and easy crystallization, which makes valves prone to problems such as clogging and wear during use, requiring frequent maintenance and replacement of parts.

[0003] Traditional pneumatic V-type regulating ball valves mostly use a fixed connection method between the valve body and the pneumatic actuator, such as direct bolt fastening. Similarly, the valve stem and the actuator's drive rod are generally also directly bolted together. While this connection method ensures a certain degree of stability, the disassembly process is extremely cumbersome when valve maintenance, valve core replacement, valve seat replacement, or other component replacement is required. Workers need to spend a significant amount of time and effort to remove numerous bolts. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pneumatic V-type regulating ball valve for crystallizing media conditions, solving the problem of extremely cumbersome disassembly processes when valve maintenance, replacement of valve cores, valve seats, or other components are required. This addresses the issue of workers needing to spend a significant amount of time and effort removing numerous bolts.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pneumatic V-type regulating ball valve for crystallization media, comprising a valve body and a pneumatic actuator above the valve body, wherein a connecting unit is provided between the valve body and the pneumatic actuator, and the valve body can be quickly installed and removed from the pneumatic actuator through the connecting unit;

[0006] A valve stem is rotatably mounted inside the valve body, and a first splined shaft is fixedly connected to the top end of the valve stem;

[0007] The bottom of the pneumatic actuator is fixedly connected to a mounting base, and the pneumatic actuator is driven by a drive rod, with the bottom end of the drive rod passing through the mounting base and fixedly connected to a second spline shaft;

[0008] The connection unit includes a mounting bracket and a spline sleeve. The mounting bracket is fixedly installed between the valve body and the mounting seat, and the spline sleeve is sleeved between the first spline shaft and the second spline shaft.

[0009] Preferably, a V-shaped valve core is rotatably provided inside the valve body, and the bottom end of the valve stem is fixedly connected to the top of the V-shaped valve core.

[0010] Preferably, a valve seat is fixedly connected to the inner wall of the valve body, and the outer side of the V-shaped valve core is tightly fitted with the valve seat.

[0011] Preferably, a limiting sleeve is movably sleeved on the outer side of the spline sleeve, and a limiting ring is rotatably connected to the inner wall of the limiting sleeve, and the limiting ring is fixedly connected to the outer side of the spline sleeve.

[0012] Preferably, a limiting strip is fixedly connected to the outer side of the limiting sleeve, and a telescopic sleeve is fixedly connected between the end of the limiting strip and the inner bottom wall of the mounting frame.

[0013] Preferably, the telescopic sleeve consists of a fixed sleeve, an extension shaft, and a spring. The spring is fixedly connected between the inside of the fixed sleeve and the end of the extension shaft, and the top end of the extension shaft and the bottom end of the fixed sleeve are respectively fixedly connected to the end of the limiting strip and the inner bottom wall of the mounting frame.

[0014] Preferably, a plurality of mounting blocks are fixedly connected to the top of the mounting bracket, the mounting blocks are in contact with the outer side of the mounting base, and the mounting blocks and the mounting base are fixedly connected by bolts.

[0015] Preferably, the bottom of the mounting base is fixedly connected with a plurality of positioning pins, and the plurality of positioning pins are disposed through the top of the mounting frame.

[0016] This utility model discloses a pneumatic V-type regulating ball valve for crystallizing media conditions, which has the following beneficial effects: The valve stem rotates inside the valve body, and its top end, the first splined shaft, is used to connect with the drive structure on the pneumatic actuator side to achieve power transmission. The drive rod is connected to the pneumatic actuator, and its bottom end, the second splined shaft, is used to connect with the first splined shaft on the valve body side to achieve power transmission from the pneumatic actuator to the valve stem. A splined sleeve is used between the first and second splined shafts, and the power transmission between the valve stem and the drive rod is achieved through spline connection. This also facilitates quick disassembly of the valve body and the pneumatic actuator. Furthermore, during installation, the splined sleeve can be slid down to quickly connect the splined sleeve to the second splined shaft, making installation easier and more convenient for observation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a cross-sectional view of the valve body of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the connection between the valve body, pneumatic actuator, and connecting unit of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the valve stem, drive rod, and connecting unit of this utility model;

[0023] Figure 6 This is a cross-sectional view of the valve stem, drive rod, and spline sleeve of this utility model.

[0024] In the diagram: 1. Valve body; 11. Valve stem; 12. First splined shaft; 13. V-type valve core; 2. Pneumatic actuator; 21. Mounting base; 22. Drive rod; 23. Second splined shaft; 3. Connecting unit; 31. Mounting bracket; 32. Splined sleeve; 33. Limiting sleeve; 34. Telescopic sleeve; 35. Limiting ring; 36. Mounting block; 37. Positioning pin. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This application provides a pneumatic V-type regulating ball valve for crystallizing media conditions, solving the problem of extremely cumbersome disassembly processes when valve maintenance, replacement of valve cores, valve seats, or other components are required. This addresses the issue of workers needing to spend a significant amount of time and effort removing numerous bolts.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] This utility model discloses a pneumatic V-type regulating ball valve for crystallizing media conditions.

[0029] According to the appendix Figure 1-6 As shown, it includes a valve body 1 and a pneumatic actuator 2 above the valve body 1. A connecting unit 3 is provided between the valve body 1 and the pneumatic actuator 2. The valve body 1 can be quickly installed and removed from the pneumatic actuator 2 through the connecting unit 3.

[0030] A valve stem 11 is rotatably mounted inside the valve body 1, and a first splined shaft 12 is fixedly connected to the top end of the valve stem 11.

[0031] The bottom of the pneumatic actuator 2 is fixedly connected to the mounting base 21, and the pneumatic actuator 2 is driven by the drive rod 22. The bottom end of the drive rod 22 passes through the mounting base 21 and is fixedly connected to the second spline shaft 23.

[0032] The connecting unit 3 includes a mounting bracket 31 and a spline sleeve 32. The mounting bracket 31 is fixedly installed between the valve body 1 and the mounting base 21, and the spline sleeve 32 is sleeved between the first spline shaft 12 and the second spline shaft 23.

[0033] Valve stem 11 and first spline shaft 12: Valve stem 11 rotates inside valve body 1. The first spline shaft 12 at its top is used to connect with the drive structure on the side of pneumatic actuator 2 to realize power transmission. Drive rod 22 is connected to pneumatic actuator 2. The second spline shaft 23 at its bottom is used to connect with the first spline shaft 12 on the side of valve body 1 to realize the transmission of power from pneumatic actuator 2 to valve stem 11. At this time, a spline sleeve 32 is used to fit between the first spline shaft 12 and the second spline shaft 23. Power transmission between valve stem 11 and drive rod 22 is realized through spline connection. At the same time, it is convenient to quickly disassemble valve body 1 and pneumatic actuator 2. During installation, the spline sleeve 32 slides down to quickly connect the spline sleeve 32 and the second spline shaft 23, which makes it easier to observe and install.

[0034] Furthermore, a V-shaped valve core 13 is rotatably mounted inside the valve body 1, and the bottom end of the valve stem 11 is fixedly connected to the top of the V-shaped valve core 13.

[0035] Furthermore, a valve seat is fixedly connected to the inner wall of the valve body 1, and the outer side of the V-shaped valve core 13 is tightly fitted with the valve seat.

[0036] Furthermore, a limiting sleeve 33 is movably sleeved on the outer side of the spline sleeve 32, and a limiting ring 35 is rotatably connected on the inner wall of the limiting sleeve 33, and the limiting ring 35 is fixedly connected to the outer side of the spline sleeve 32.

[0037] Furthermore, a limiting strip is fixedly connected to the outer side of the limiting sleeve 33, and a telescopic sleeve 34 is fixedly connected between the end of the limiting strip and the inner bottom wall of the mounting bracket 31.

[0038] Furthermore, the telescopic sleeve 34 consists of a fixed sleeve, an extension shaft, and a spring. The spring is fixedly connected between the inside of the fixed sleeve and the end of the extension shaft, and the top end of the extension shaft and the bottom end of the fixed sleeve are respectively fixedly connected to the end of the limiting strip and the inner bottom wall of the mounting bracket 31.

[0039] Furthermore, multiple mounting blocks 36 are fixedly connected to the top of the mounting bracket 31. The mounting blocks 36 fit against the outer side of the mounting base 21, and the mounting blocks 36 and the mounting base 21 are fixedly connected by bolts.

[0040] Furthermore, the bottom of the mounting base 21 is fixedly connected with multiple positioning pins 37, and the multiple positioning pins 37 are set through the top of the mounting bracket 31.

[0041] Align the mounting base 21 at the bottom of the pneumatic actuator 2 with the mounting bracket 31 on top of the valve body 1.

[0042] During installation, first press down on the spline sleeve 32 to compress the telescopic sleeve 34, then slowly lower the pneumatic actuator 2 so that the positioning pin 37 at the bottom of the mounting base 21 passes through the top of the mounting bracket 31, achieving positioning and guidance between the valve body 1 and the pneumatic actuator 2. At this time, the second spline shaft 23 at the bottom of the drive rod 22 of the pneumatic actuator 2 is aligned with the first spline shaft 12 at the top of the valve stem 11 inside the valve body 1. Then, adjust the angle of the spline sleeve 32 so that it can be fitted onto the outside of the second spline shaft 23 when it moves upward, thereby achieving the power connection between the valve stem 11 and the drive rod 22. Then, use bolts to fix the mounting block 36 at the top of the mounting bracket 31 to the mounting base 21, further strengthening the connection between the valve body 1 and the pneumatic actuator 2, and ensuring the stability of the valve during operation.

[0043] During disassembly, the bolts between the mounting block 36 and the mounting base 21 need to be removed, and the valve body 1 can be directly separated from the pneumatic actuator 2, which is simple and convenient.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic V-type control ball valve for crystallization medium service, comprising a valve body (1) and a pneumatic actuator (2) above the valve body (1), characterized in that, The connecting unit (3) is arranged between the valve body (1) and the pneumatic actuator (2), and the valve body (1) can be quickly assembled and disassembled with the pneumatic actuator (2) through the connecting unit (3); The valve stem (11) is rotatably arranged in the valve body (1), and the first spline shaft (12) is fixedly connected to the top end of the valve stem (11); The mounting seat (21) is fixedly connected to the bottom of the pneumatic actuator (2), the driving rod (22) is drivingly connected to the pneumatic actuator (2), and the second spline shaft (23) is fixedly connected to the bottom end of the driving rod (22) penetrating through the mounting seat (21); The connecting unit (3) comprises a mounting frame (31) and a spline sleeve (32), the mounting frame (31) is fixedly installed between the valve body (1) and the mounting seat (21), and the spline sleeve (32) is sleeved between the first spline shaft (12) and the second spline shaft (23).

2. The crystallized media service pneumatic V-type trim ball valve according to claim 1, characterized in that, The V-shaped valve core (13) is rotatably arranged in the valve body (1), and the bottom end of the valve stem (11) is fixedly connected to the top of the V-shaped valve core (13).

3. The crystallized media service pneumatic V-globe valve of claim 2, wherein, The valve seat is fixedly connected to the inner wall of the valve body (1), and the outer side of the V-shaped valve core (13) is tightly attached to the valve seat.

4. The crystallized media service pneumatic V-globe valve of claim 1, wherein, The limiting sleeve (33) is movably sleeved on the outer side of the spline sleeve (32), the limiting ring (35) is rotatably connected to the inner wall of the limiting sleeve (33), and the limiting ring (35) is fixedly connected to the outer side of the spline sleeve (32).

5. The crystallized media service pneumatic V-globe valve of claim 4, wherein, The limiting strip is fixedly connected to the outer side of the limiting sleeve (33), and the extension sleeve (34) is fixedly connected between the end of the limiting strip and the inner bottom wall of the mounting frame (31).

6. The crystallized media service pneumatic V-globe valve of claim 5, wherein, The extension sleeve (34) is composed of a fixed sleeve, an extension shaft and a spring, the spring is fixedly connected between the inside of the fixed sleeve and the end of the extension shaft, and the top end of the extension shaft and the bottom end of the fixed sleeve are respectively fixedly connected to the end of the limiting strip and the inner bottom wall of the mounting frame (31).

7. The crystallized media service pneumatic V-globe valve of claim 1, wherein, The mounting blocks (36) are fixedly connected to the top of the mounting frame (31), the mounting blocks (36) are attached to the outer side of the mounting seat (21), and the mounting blocks (36) and the mounting seat (21) are fixedly connected through bolts.

8. The crystallized media service pneumatic V-globe valve of claim 1, wherein, The positioning pins (37) are fixedly connected to the bottom of the mounting seat (21), and the positioning pins (37) penetrate through the top of the mounting frame (31).

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