Valve positioner for regulating valve
By designing non-rotating conductive blocks and limiting components in the valve positioner, the problem of operators being difficult to accurately clamp the test clip during commissioning is solved, the stability and positioning accuracy of the test clip are improved, and the difficulty of commissioning is reduced.
Patent Information
- Application Number
- CN202420932201.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the debugging process of existing valve positioners, the screws at the output and input ends are small, making it difficult for the operator to accurately clamp the test clip, which can easily cause the test clip to fall and increase the difficulty of commissioning.
A valve positioner is designed, including the positioner body, cover, mounting seat, screw and conductive sheet. The outer wall of the mounting seat can be detached and installed with conductive blocks. The conductive block cannot rotate, and the outer end is equipped with a conductive socket. The limiting component is A support block and baffle are composed of a support and limit the position and angle of the conductive sheet and test clip.
Through the design of conductive blocks and limit components, the operator is more convenient when clamping the test clip, reducing the probability of changing the angle of the test clip and collide with each other, reducing the need for secondary clamping, and improving the stability of the test clip and Positioning accuracy.
Smart Images
Figure CN222506390U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve positioners, in particular to a valve positioner used for a regulating valve. Background Art
[0002] The valve positioner is the main accessory of the control valve and is usually used in conjunction with a pneumatic control valve. The electric valve positioner is connected to the actuator, which is connected to the pneumatic control valve. The actuator pushes the valve stem in the pneumatic control valve to move and change the opening size. The electric valve positioner is linked to the actuator to convert the valve stem displacement of the pneumatic control valve into an electrical signal and feed the electrical signal back to the controller. The controller compares the electrical signal with the set signal. When there is a deviation between the two, the controller changes its output signal to the actuator to activate the actuator, thereby adjusting the opening of the pneumatic control valve to the set value.
[0003] At present, when installing a valve positioner, the output setting needs to be debugged. During debugging, the protective cover is removed to expose the inside of the valve positioner. Then the test clip of the tester is clamped on the screws at the output and input ends respectively. After confirming the value, the output setting is debugged by pressing the corresponding button on the positioner.
[0004] However, during the debugging process of the valve positioner mentioned above, firstly, because the screws at the output and input ends are mostly relatively small, it is inconvenient for the operator to find the clamping position when clamping. At the same time, in the process of clamping the test clamp, the operator is very likely to knock off the clamped test clamp, resulting in the need for a second or even multiple clamping. This will undoubtedly increase the difficulty of debugging, especially some valve positioners have two output and input ends, and four test clamps need to be clamped during debugging. This makes it easier for the operator to cause the test clamps to contact each other when installing the test clamps, causing the test clamps to fall off. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a valve positioner for a regulating valve to solve the technical problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve positioner for a regulating valve, comprising a positioner body, a protective cover, a mounting seat, a screw and a conductive sheet, wherein a conductive block in contact with the conductive sheet is detachably mounted on the outer wall of the mounting seat, and the conductive block is set to be unable to rotate, the outer end of the conductive block protrudes from the mounting seat, and the distance between the outer end of the conductive block and the outer wall of the mounting seat is greater than the distance between the outer end of the screw and the outer wall of the mounting seat, the distance between the outer wall of the outer end of the conductive block and the outer wall of the screw is greater than the thickness of a test clip used for detection, and a conductive jack is provided at the outer end of the conductive block, and a limit assembly for supporting and limiting the conductive sheet and the test clip is installed on the outer wall of the positioner body.
[0007] By adopting the above technical scheme, it is more convenient for the operator to clamp the test clamp, and the probability of the test clamp changing its angle is reduced, thereby reducing the probability of the test clamps colliding with each other during the installation of the test clamps, and further reducing the probability of the test clamps needing to be clamped for the second time. At the same time, under the action of the limit assembly, the stability of the position and angle of the test clamp after clamping is further increased. Because the baffle separates multiple mounting seats, it effectively avoids contact between the test clamps, thereby further reducing the probability of needing to clamp the test clamp for the second time, making the positioner easier to use.
[0008] The utility model is further configured that the outer wall of the mounting seat is provided with a conductive thread groove corresponding to the screw, and the outer wall of the mounting seat is opened with a limiting groove corresponding to the conductive block, and the limiting groove is communicated with the conductive thread groove.
[0009] By adopting the above technical solution, the limiting groove will limit the conductive block to ensure the stability of the position and angle of the conductive block after installation.
[0010] The utility model is further configured that the conductive block is composed of a rectangular block and an L-shaped block, wherein the L-shaped block protrudes from the mounting seat, and the rectangular block is located in the limiting groove.
[0011] By adopting the above technical solution, the rectangular block will cooperate with the limiting groove to limit the entire conductive block, ensuring that the angle of the conductive block cannot be changed.
[0012] The utility model is further configured that a through slot for the screw to pass through is opened in the middle of the rectangular block, and the diameter of the through slot is larger than the diameter of the conductive thread slot.
[0013] By adopting the above technical solution, it is ensured that the conductive block can contact the conductive sheet and the screw can be installed smoothly.
[0014] The utility model is further configured that the corners of the end of the rectangular block are designed to be beveled, and the diameter of the rectangular block is smaller than the diameter of the end of the conductive sheet.
[0015] By adopting the above technical solution, the bevel at the end of the rectangular block can guide the conductive block, thereby reducing the difficulty of installing the conductive block into the limiting groove.
[0016] The utility model is further configured that a plurality of groups of conductive protruding teeth are installed at equal intervals on the outer walls on both sides of the outer end of the conductive block, and the cross-section of the conductive protruding teeth is designed to be triangular.
[0017] By adopting the above technical solution, the convex teeth can further reduce the probability of the conductive block changing its angle.
[0018] The utility model is further configured that a plurality of conductive plug holes are provided at equal intervals at the outer end of the conductive block, and the diameters of the plurality of groups of conductive plug holes are different.
[0019] By adopting the above technical solution, it is further ensured that when using a test pen for detection, the input or output current can still be smoothly detected.
[0020] The utility model is further configured such that the limiting assembly consists of a support block and a baffle, the support block is mounted on the outer wall of the mounting seat, and the top of the support block contacts the side wall of the conductive sheet, the baffle is fixedly mounted on the outer wall of the positioner body, and the baffle is located below the mounting seat.
[0021] By adopting the above technical solution, the baffle can support the test clip, further ensuring the stability of the test clip when in use.
[0022] In summary, the utility model mainly has the following beneficial effects:
[0023] The utility model is provided with a conductive sheet, which makes it more convenient for the operator to clamp the test clip, reduces the probability of the test clip changing its angle, and further reduces the probability of the test clips colliding with each other during the installation of the test clips, thereby reducing the probability of secondary clamping of the test clips. At the same time, under the action of the limit assembly, the stability of the position and angle of the test clip after clamping is further increased. Because the baffle separates a plurality of mounting seats, it effectively avoids contact between the test clips, thereby further reducing the probability of needing to clamp the test clip for the second time, making the positioner more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a valve positioner for a regulating valve according to the utility model;
[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of a valve positioner for a regulating valve according to the utility model after removing the protective cover;
[0026] Figure 3 It is a three-dimensional structural schematic diagram of the mounting seat in the utility model;
[0027] Figure 4 For this utility model Figure 3 Exploded view of parts in the figure;
[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the conductive block in the utility model after side section.
[0029] In the figure: 1. Positioner body; 2. Protective cover; 3. Mounting seat; 4. Screw; 5. Conductive sheet; 6. Conductive threaded groove; 7. Conductive block; 8. Through groove; 9. Limiting groove; 10. Conductive convex tooth; 11. Support block; 12. Baffle; 13. Conductive socket. DETAILED DESCRIPTION
[0030] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0031] The following describes an embodiment of the utility model based on its overall structure.
[0032] Embodiment 1
[0033] A valve positioner for a regulating valve, such as Figure 1 - Figure 5 As shown, it includes a positioner body 1, a protective cover 2, a mounting seat 3, a screw 4 and a conductive sheet 5, wherein a conductive block 7 in contact with the conductive sheet 5 is detachably mounted on the outer wall of the mounting seat 3, and the outer end of the conductive block 7 protrudes from the mounting seat 3, so that when the current of the output end and the input end needs to be detected later, the test clip can be set on the conductive block 7, which can achieve the effect of connecting the test clip with the screw 4, and the conductive block 7 is set to be unable to rotate, so that the angle of the conductive block 7 is limited, thereby ensuring the stability of the subsequent test clip on the conductive block 7, and also ensuring that the conductive block 7 will not rotate during the removal of the screw 4, because the outer end of the conductive block 7 The distance between the end face and the outer wall of the mounting seat 3 is greater than the distance between the outer end face of the screw 4 and the outer wall of the mounting seat 3. At the same time, the distance between the outer wall of the outer end of the conductive block 7 and the outer wall of the screw 4 is greater than the thickness of the test clip used for detection, so that when the test clip is clamped on the conductive block 7, the distance between the outer side wall of the conductive block 7 and the outer wall of the screw 4 can ensure that the test clip is smoothly clamped on the conductive block 7, and a conductive socket 13 is provided at the outer end of the conductive block 7, so that if a test pen is used for testing instead of a test clip, the user can insert the metal test needle at the end of the test pen into the conductive socket 13, so that the conductive block 7 can be suitable for two test instruments, which is more convenient for the operator to debug.
[0034] See also Figure 3 and Figure 4A conductive thread groove 6 corresponding to the screw 4 is provided on the outer wall of the mounting seat 3 to ensure that the screw 4 can be smoothly threadedly connected to the mounting seat 3, thereby ensuring that the line connected to the conductive sheet 5 can smoothly transmit the current to the screw 4 and the conductive block 7 through the conductive sheet 5, and a limiting groove 9 corresponding to the conductive block 7 is provided on the outer wall of the mounting seat 3. The limiting groove 9 will limit the conductive block 7 to ensure the stability of the position and angle of the conductive block 7 after installation, and because the limiting groove 9 is connected to the conductive thread groove 6, it is ensured that the setting of the limiting groove 9 will not cause the screw 4 to be unable to be installed and fixed.
[0035] See also Figure 3 - Figure 5 The conductive block 7 is composed of a rectangular block and an L-shaped block, wherein the L-shaped block is the outer end of the conductive block 7 protruding from the mounting seat 3, and the rectangular block is located in the limiting groove 9. Because the rectangular block will be attached to the limiting groove 9, the rectangular block will cooperate with the limiting groove 9 to limit the entire conductive block 7, ensuring that the angle of the conductive block 7 cannot be changed. At the same time, the rectangular block and the L-shaped block are both made of metal, and the rectangular block is attached to the outer wall of the conductive sheet 5. At the same time, a through groove 8 for the screw 4 to pass through is opened in the middle of the rectangular block, and the diameter of the through groove 8 is larger than the conductive thread The diameter of the slot 6 ensures that the screw 4 can pass through the conductive block 7 smoothly, ensures that the conductive block 7 can contact the conductive sheet 5, and ensures that the screw 4 can be installed smoothly. The corners of the rectangular block end are designed to be beveled, so that when installing the conductive block 7, the bevel of the rectangular block end will guide the conductive block 7, reducing the difficulty of installing the conductive block 7 into the limiting slot 9, and the diameter of the rectangular block is smaller than the diameter of the end of the conductive sheet 5, so that the conductive sheet 5 will cover the entire rectangular block, thereby ensuring that the conductive sheet 5 has enough area to contact the conductive block 7.
[0036] See also Figure 3 - Figure 5 A plurality of sets of conductive protruding teeth 10 are installed at equal intervals on the outer walls on both sides of the outer end of the conductive block 7. At the same time, the material of the conductive protruding teeth 10 is the same as that of the conductive block 7. At the same time, because the cross-section of the conductive protruding teeth 10 is designed to be triangular, when the test clip is clamped on the conductive block 7, it will contact the conductive protruding teeth 10. The conductive protruding teeth 10 will further increase the friction between the test clip and the conductive block 7, and further reduce the probability of the conductive block 7 changing its angle.
[0037] See also Figure 3 - Figure 5 A plurality of conductive sockets 13 are provided at equal intervals on the outer end of the conductive block 7, and the diameters of the plurality of conductive sockets 13 are different, so that the metal test needle at the end of the test pen can be smoothly inserted into the conductive socket 13 of the corresponding diameter, further ensuring that when the test pen is used for detection, the input or output current can still be smoothly detected.
[0038] Embodiment 2
[0039] A valve positioner for a regulating valve, such as Figure 1 - Figure 5 As shown, the technical scheme and parts of this embodiment are basically the same as those of the first embodiment, and the same technical parts will not be repeated here. The difference is that a limit assembly for supporting and limiting the conductive sheet 5 and the test clip is installed on the outer wall of the locator body 1, and the limit assembly is composed of a support block 11 and a baffle 12, wherein the support block 11 is installed on the outer wall of the mounting seat 3, and the top of the support block 11 contacts the side wall of the conductive sheet 5, so that the conductive sheet 5 will be supported and limited by the support block 11, ensuring the fixity of the angle of the conductive sheet 5, and the baffle 12 is fixedly installed on the outer wall of the locator body 1, and the baffle 12 is located below the mounting seat 3, and the length of the baffle 12 is greater than the length of the mounting seat 3, so that the test clip clamped at the outer end of the conductive block 7 will contact the baffle 12, and the baffle 12 at this time will support the test clip, further ensuring the stability of the test clip when in use, and the baffle 12 will also separate multiple groups of mounting seats 3 to prevent the test clips from affecting each other, further improving the stability of the test clip during and after installation.
[0040] The working principle of the utility model is as follows: when the positioner body 1 needs to be debugged, the protective cover 2 is first opened and removed to expose the interior of the positioner body 1, and then the test clip is clamped on the outer end of the conductive block 7. Since the outer end of the conductive block 7 is designed as an L-shaped block, the angle of the test clip after being clamped on the outer end of the conductive block 7 will be limited, thereby avoiding accidents in which the test clips contact each other and fall due to different angles of the test clips, and it is also convenient for the user to clamp the test clip on the conductive block 7. At the same time, the baffle 12 will also support the test clip, so that the test clip will be blocked by the baffle 12, further improving the stability of the test clip on the conductive block 7, making the test operation simpler.
[0041] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A valve positioner for a regulating valve, comprising a positioner body (1), a protective cover (2), a mounting seat (3), a screw (4) and a conductive sheet (5), characterized in that: The outer wall of the mounting seat (3) is detachably mounted with a conductive block (7) in contact with the conductive sheet (5), and the conductive block (7) is set to be unable to rotate, the outer end of the conductive block (7) protrudes from the mounting seat (3), and the distance between the outer end of the conductive block (7) and the outer wall of the mounting seat (3) is greater than the distance between the outer end of the screw (4) and the outer wall of the mounting seat (3), the distance between the outer wall of the outer end of the conductive block (7) and the outer wall of the screw (4) is greater than the thickness of a test clip used for detection, and the outer end of the conductive block (7) is provided with a conductive socket (13), and the outer wall of the positioner body (1) is mounted with a limit assembly for supporting and limiting the conductive sheet (5) and the test clip.
2. A valve positioner for a regulating valve according to claim 1, characterized in that: The outer wall of the mounting seat (3) is provided with a conductive thread groove (6) corresponding to the screw (4), and the outer wall of the mounting seat (3) is provided with a limiting groove (9) corresponding to the conductive block (7), and the limiting groove (9) is communicated with the conductive thread groove (6).
3. A valve positioner for a regulating valve according to claim 2, characterized in that: The conductive block (7) is composed of a rectangular block and an L-shaped block, wherein the L-shaped block protrudes from the mounting seat (3), and the rectangular block is located in the limiting groove (9).
4. A valve positioner for a regulating valve according to claim 3, characterized in that: A through slot (8) for the screw (4) to pass through is provided in the middle of the rectangular block, and the diameter of the through slot (8) is greater than the diameter of the conductive thread slot (6).
5. A valve positioner for a regulating valve according to claim 4, characterized in that: The corners of the ends of the rectangular block are designed to be beveled, and the diameter of the rectangular block is smaller than the diameter of the end of the conductive sheet (5).
6. A valve positioner for a regulating valve according to claim 1, characterized in that: Multiple groups of conductive protruding teeth (10) are installed at equal intervals on the outer walls of both sides of the outer end of the conductive block (7), and the cross-section of the conductive protruding teeth (10) is designed to be triangular.
7. A valve positioner for a regulating valve according to claim 1, characterized in that: A plurality of conductive plug holes (13) are provided at equal intervals on the outer end of the conductive block (7), and the diameters of the plurality of groups of conductive plug holes (13) are different.
8. The valve positioner for a regulating valve according to claim 1, characterized in that: The limiting assembly is composed of a support block (11) and a baffle (12); the support block (11) is mounted on the outer wall of the mounting seat (3), and the top of the support block (11) is in contact with the side wall of the conductive sheet (5); the baffle (12) is fixedly mounted on the outer wall of the positioner body (1), and the baffle (12) is located below the mounting seat (3).