A valve positioner mounting structure

Abstract

This utility model provides an installation structure for a valve positioner, including a valve positioner body. Two fixing posts are fixedly mounted at the bottom of the valve positioner body. A mounting plate is rotatably connected to the middle of each of the two fixing posts. A U-shaped positioning block is engaged with the ends of the two mounting plates. A first semi-circular threaded groove is formed at the alignment position of the U-shaped positioning block and the mounting plate. A second semi-circular threaded groove, matching the first semi-circular threaded groove, is formed at the end of the mounting plate. The first and second semi-circular threaded grooves are fixedly connected to the connecting studs on the valve surface. This utility model, through the rotatable mounting plate at the bottom of the valve positioner body, allows adjustment of the mounting plate's rotation angle according to installation requirements. The U-shaped positioning block at the end of the mounting plate enables quick engagement and fixation with the valve's mounting studs, facilitating the assembly and disassembly of the valve positioner body and the valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve positioners and relates to an installation structure for a valve positioner. Background Technology

[0002] Valve positioners are an important component of modern valves. They use closed-loop control to correct the valve position in real time, reducing the adverse effects of external interference such as changes in medium pressure and mechanical wear on the valve opening and ensuring that the valve operates accurately at the expected position.

[0003] Currently, valve positioners are mainly installed on valves using screws. However, screw installation makes it inconvenient to maintain the valve positioner after installation, and it also requires drilling screw holes at specific locations on the valve, affecting the ease of assembly. Therefore, we have designed an installation structure for valve positioners. Summary of the Invention

[0004] The purpose of this utility model is to provide an installation structure for a valve positioner, in order to solve the problems mentioned in the background art, where the valve positioner is mainly installed with screws. When using screws, the valve positioner is inconvenient to maintain after installation, and screw holes need to be made at specific positions on the valve, which affects the convenience of valve positioner assembly.

[0005] The objective of this utility model can be achieved through the following technical solution: A valve positioner mounting structure includes a valve positioner body. Two fixing posts are fixedly mounted at the bottom of the valve positioner body. Mounting plates are rotatably connected to the middle of each of the two fixing posts. U-shaped positioning blocks are engaged with the ends of the two mounting plates. A first semi-circular threaded groove is formed at the alignment position of the U-shaped positioning block and the mounting plate. A second semi-circular threaded groove, matching the first semi-circular threaded groove, is formed at the end of the mounting plate. The first and second semi-circular threaded grooves are fixedly connected to the connecting studs on the valve surface. This design allows for adjustment of the rotation angle of the mounting plate according to installation requirements via the rotatable mounting plate at the bottom of the valve positioner body. The engagement of the mounting plate with the U-shaped positioning blocks at the ends enables quick and easy engagement with the valve's mounting studs, facilitating the assembly and disassembly of the valve positioner body and the valve.

[0006] In the aforementioned valve positioner installation structure, the inner wall of the U-shaped positioning block has locking holes on both sides, and the mounting plate has retractable T-shaped posts on both sides. The two T-shaped posts engage with the corresponding locking holes. This arrangement facilitates the fixing of the mounting plate to the U-shaped positioning block by engaging the T-shaped posts with the locking holes.

[0007] In the aforementioned installation structure of a valve positioner, the mounting plate has an internal mounting groove, and two T-shaped posts are inserted into the sides of the mounting groove. A return spring is fixedly installed between the two T-shaped posts. This arrangement is intended to control the extension and retraction of the T-shaped posts via the return spring.

[0008] In the aforementioned installation structure of a valve positioner, the top of the mounting groove has a through groove communicating with the outside. Push blocks are inserted into the interior of both through grooves, and the two push blocks are fixedly connected to the top of the corresponding T-shaped column. This arrangement is intended to allow the push blocks to push the T-shaped column to retract.

[0009] In the aforementioned installation structure of a valve positioner, convex limiting grooves are provided on both sides of the mounting plate. Convex limiting sliders are slidably connected inside each of the two convex limiting grooves, and the front sides of the two convex limiting sliders are fixedly connected to the inner wall of the U-shaped positioning block. The purpose of this arrangement is to limit the direction of movement through the cooperation of the convex limiting grooves and the convex limiting sliders.

[0010] In the aforementioned valve positioner mounting structure, both of the bottom of the fixed columns are threaded with lock nuts, and metal washers are nested at the threaded connections between the two lock nuts and the fixed columns. This arrangement is intended to limit the movement of the mounting plate using the lock nuts.

[0011] Compared with the prior art, the advantages of the installation structure of the valve positioner of this utility model are as follows: the rotatable mounting plate set at the bottom of the valve positioner body can adjust the rotation angle of the mounting plate according to the installation requirements. The end of the mounting plate is engaged with the U-shaped positioning block, which can quickly engage and fix it with the valve mounting stud, facilitating the assembly and disassembly of the valve positioner body and the valve. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the installation structure of a valve positioner according to this utility model.

[0013] Figure 2 This is a schematic diagram of the U-shaped positioning block and mounting plate engaging and connecting structure of the valve positioner installation structure of this utility model.

[0014] Figure 3 This is a partial structural diagram of the installation structure of a valve positioner according to this utility model.

[0015] In the diagram, 1. Valve positioner body; 2. Fixing column; 3. Mounting plate; 4. U-shaped positioning block; 5. First semi-circular threaded groove; 6. Second semi-circular threaded groove; 7. T-shaped column; 8. Push block; 9. Through groove; 10. Convex limiting slide groove; 11. Convex limiting slider; 12. Locking hole; 13. Mounting groove; 14. Return spring; 15. Locking nut. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1-3 As shown, the present invention discloses an installation structure for a valve positioner, comprising a valve positioner body 1, two fixing posts 2 fixedly mounted at the bottom end of the valve positioner body 1, mounting plates 3 rotatably connected to the middle of each of the two fixing posts 2, and U-shaped positioning blocks 4 engaged at the ends of the two mounting plates 3. A first semi-circular threaded groove 5 is provided at the alignment position of the U-shaped positioning block 4 and the mounting plate 3, and a second semi-circular threaded groove 6 adapted to the first semi-circular threaded groove 5 is provided at the end of the mounting plate 3. The first semi-circular threaded groove 5 and the second semi-circular threaded groove 6 are fixedly connected to the connecting studs on the valve surface.

[0018] Specifically, the rotatable mounting plate 3 at the bottom of the valve positioner body 1 can be adjusted according to the installation requirements. The end of the mounting plate 3 is engaged with the U-shaped positioning block 4, which can quickly engage and fix with the valve mounting stud, facilitating the assembly and disassembly of the valve positioner body 1 and the valve.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention discloses an installation structure for a valve positioner. The inner walls of the U-shaped positioning block 4 are provided with locking holes 12 on both sides, and the mounting plate 3 is provided with retractable T-shaped posts 7 on both sides. The two T-shaped posts 7 are engaged with the corresponding locking holes 12.

[0020] The mounting plate 3 has an internal mounting groove 13, and two T-shaped posts 7 are inserted into the sides of the mounting groove 13. A return spring 14 is fixedly installed between the two T-shaped posts 7.

[0021] Specifically, the resetting spring 14 and the push block 8 work together to control the extension and retraction of the two T-shaped posts 7, so that the T-shaped posts 7 can engage and disengage with the locking hole 12, which facilitates the installation and fixing of the U-shaped positioning block 4.

[0022] The top of the mounting slot 13 is provided with a through slot 9 that communicates with the outside. Push blocks 8 are inserted into the interior of both through slots 9, and the two push blocks 8 are fixedly connected to the top of the corresponding T-shaped column 7.

[0023] Both sides of the mounting plate 3 are provided with convex limiting grooves 10, and convex limiting sliders 11 are slidably connected inside the two convex limiting grooves 10. The front of the two convex limiting sliders 11 is fixedly connected to the inner side wall of the U-shaped positioning block 4.

[0024] Specifically, the movement of the U-shaped positioning block 4 can be limited by the cooperation of the convex limiting slider 11 and the convex limiting groove 10.

[0025] Both fixed posts 2 have locking nuts 15 threaded to their bottoms, and metal washers are nested at the threaded connection between the two locking nuts 15 and the fixed posts 2.

[0026] Specifically, the locking nut 15 and the bottom threaded connection of the fixing post 2 facilitate the positioning and fixing of the mounting plate 3.

[0027] In specific implementation, when installing the valve positioner body 1 and the valve using the valve positioner mounting structure, firstly, manually adjust the horizontal angle of the mounting plate 3 according to the position of the mounting stud on the valve surface, so that the second semi-circular threaded groove 6 at the end of the mounting plate 3 contacts the surface of the mounting stud. Then, manually push the two push blocks 8 towards the center, which pushes the two T-shaped posts 7 towards the center of the mounting groove 13, so that the ends of the T-shaped posts 7 move into the interior of the mounting groove 13. Next, manually push the U-shaped positioning block 4 towards the direction of the second semi-circular threaded groove 6, so that the first semi-circular threaded groove 5 on the inner wall of the U-shaped positioning block 4 contacts the surface of the mounting stud. At this time, the position of the locking hole 12 is aligned with the position of the T-shaped posts 7. Then, manually release the push blocks 8, and the two T-shaped posts 7 extend out of the mounting groove 13 by the thrust of the return spring 14, so that the ends of the T-shaped posts 7 engage with the locking hole 12. Repeat the above steps to complete the connection between the other mounting plate 3 and the mounting stud, thus completing the connection between the valve positioner body 1 and the valve.

[0028] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A mounting structure of a valve positioner, comprising a valve positioner body (1), the bottom end of the valve positioner body (1) is fixedly provided with two fixing columns (2), characterized in that, The two fixed columns (2) are rotatably connected to the middle of the mounting plate (3), and the ends of the two mounting plates (3) are engaged with the U-shaped positioning block (4). The U-shaped positioning block (4) and the mounting plate (3) are provided with a first semi-circular threaded groove (5). The end of the mounting plate (3) is provided with a second semi-circular threaded groove (6) that matches the first semi-circular threaded groove (5). The first semi-circular threaded groove (5) and the second semi-circular threaded groove (6) are fixedly connected to the connecting stud on the valve surface.

2. The valve positioner mounting structure according to claim 1, wherein The inner walls of the U-shaped positioning block (4) are provided with locking holes (12) on both sides, and the mounting plate (3) is provided with retractable T-shaped posts (7) on both sides. The two T-shaped posts (7) are engaged with the corresponding locking holes (12).

3. The valve positioner mounting structure according to claim 2, wherein The mounting plate (3) has an internal mounting groove (13), and the two T-shaped posts (7) are inserted into the two sides of the mounting groove (13). A reset spring (14) is fixedly installed between the two T-shaped posts (7).

4. The valve positioner mounting structure according to claim 3, wherein The top of the mounting groove (13) is provided with a through groove (9) that communicates with the outside. Push blocks (8) are inserted into the interior of both through grooves (9). The two push blocks (8) are fixedly connected to the top of the corresponding T-shaped column (7).

5. The valve positioner mounting structure according to claim 3, wherein The mounting plate (3) has convex limiting grooves (10) on both sides. Convex limiting sliders (11) are slidably connected inside the two convex limiting grooves (10). The front of the two convex limiting sliders (11) is fixedly connected to the inner wall of the U-shaped positioning block (4).

6. The valve positioner mounting structure according to claim 1, wherein Both of the fixed columns (2) are threaded with locking nuts (15) at their bottoms, and metal washers are nested at the threaded connection between the two locking nuts (15) and the fixed columns (2).

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