A valve positioner quick-release mechanism

Abstract

This utility model provides a quick-installation mechanism for a valve positioner, including a mounting base for installing the valve positioner. The mounting base has a guide groove, and a quick-change snap-fit ​​assembly is provided on the upper part of the mounting base. The quick-change snap-fit ​​assembly includes a guide plate inserted into the guide groove, a locking plate on the upper part of the guide plate, and an elastic element on the lower part of the locking plate. The locking plate has a locking groove that matches the boss of the positioner. This utility model can achieve quick snap-fit ​​installation and fixing of the positioner through the cooperation of the elastic element and the locking plate, which greatly improves the efficiency of positioner installation and disassembly and makes operation more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of positioner installation equipment, and specifically to a quick-installation mechanism for a valve positioner. Background Technology

[0002] The valve positioner is a key accessory for control valves and is usually used in conjunction with pneumatic control valves. It receives the output signal from the controller and then uses its output signal to control the pneumatic control valve. When the control valve moves, the displacement of the valve stem is fed back to the valve positioner through a mechanical device, and the valve position status is transmitted to the upper system through an electrical signal.

[0003] Valve positioners are typically installed on one side of the valve and are usually fastened to the valve via a connecting bracket and bolts. When adjusting the valve or using it in confined spaces, the position of the valve positioner needs to be adjusted, which requires disassembly and reassembly, which is extremely inconvenient. To address the above problems, the inventor has proposed a quick-installation mechanism for valve positioners.

[0004] Chinese patent document CN218761762U discloses a quick-release mechanism for a valve positioner, including a base. A valve is fixed to the upper surface of the base, and a mounting plate is fixed to one side of the valve. A detachable valve positioner is provided on one side of the mounting plate. A limit plate is fixed to the outer wall of the mounting plate. A set of snap-fit ​​plates is rotatably mounted on the outer wall of the valve positioner, and the snap-fit ​​plates match the limit plate. A threaded rod for controlling the rotation of the snap-fit ​​plates is rotatably mounted on the side wall of the valve positioner. A limit groove is formed on the outer wall of the mounting plate, and the limit plate is fixedly mounted at both ends of the limit groove. A sliding groove is formed on the outer wall of the valve positioner. A set of sliders, which are T-shaped, are slidably mounted inside the sliding groove. One end of the threaded rod is rotatably mounted inside the sliding groove, and the threaded rod is threadedly connected to the slider. A pressing plate is fixedly mounted on the outer wall of the two sliders at their opposite ends, and the two snap-fit ​​plates are rotatably mounted at both ends of the sliding groove. The aforementioned quick-installation mechanism for valve positioners has shortcomings. In the existing technology, valve positioners are usually installed by direct bolt fixing or complex clamp structures. The installation and disassembly process requires special tools, which is cumbersome and time-consuming. This can seriously affect production efficiency, especially during equipment maintenance. Utility Model Content

[0005] In view of this, the present invention provides a quick-installation mechanism for valve positioners, which enables the rapid installation and disassembly of valve positioners. This solves the problem that traditional valve positioners are usually installed by direct bolt fixing or complex clamp structures, which require special tools for installation and disassembly, are cumbersome and time-consuming, and seriously affect production efficiency, especially during equipment maintenance.

[0006] To solve the above-mentioned technical problems, this utility model provides a quick-installation mechanism for a valve positioner, including a mounting base for installing the valve positioner. The mounting base has a guide groove, and a quick-change snap-fit ​​assembly is provided on the upper part of the mounting base. The quick-change snap-fit ​​assembly includes a guide plate inserted into the guide groove, a locking plate on the upper part of the guide plate, and an elastic element on the lower part of the locking plate. The locking plate has a locking groove that matches the boss of the positioner. This utility model can achieve quick snap-fit ​​installation and fixing of the positioner through the cooperation of the elastic element and the locking plate, which greatly improves the efficiency of positioner installation and disassembly and makes operation more convenient.

[0007] The elastic element includes multiple limiting cylinders mounted on the mounting base. Each limiting cylinder contains a spring, and the upper part of the multiple springs contacts the lower part of the clamping plate. When no locator is placed in the clamping groove, the lower part of the guide plate is inserted into the guide groove. This utility model can limit the radial swing of the spring by guiding and limiting the spring through the limiting cylinders. When the locator is engaged with the clamping plate, the locator's own gravity can press the clamping plate and the clamping plate downwards to press the guide plate into the guide groove. Moreover, after the locator is separated from the clamping plate, the clamping plate can be lifted upwards by the restoring elasticity of the spring after compression to separate it from the mounting base, which greatly improves the efficiency of clamping plate disassembly and replacement.

[0008] The guide plate has an arc-shaped structure, and the line connecting the two ends of the arc at the opening is larger than the width of the sensor on the positioner. This makes it easy to smoothly insert the positioner into the slot on the guide plate. Moreover, by quickly switching between guide plates with slots of different sizes, it is possible to quickly install and fix positioners of different specifications, making it more versatile.

[0009] An mounting plate is provided on the outer wall of the mounting base. The mounting plate is fixedly connected to the surface to be installed by bolts. This utility model can achieve efficient assembly and disassembly of the mounting base by using the mounting plate and bolts, making the operation more convenient.

[0010] The mounting plate has a U-shaped structure. The lower part of the horizontal section of the mounting plate is fixed to the outside of the mounting base. The upper part of the horizontal section and the side wall of the vertical section of the mounting plate are provided with mounting holes larger than the external thread diameter of the bolt. This utility model facilitates the quick installation and fixing of the mounting plate on the horizontal or vertical plate through the mounting holes on the horizontal and vertical sections of the mounting plate, making it more versatile.

[0011] The pallet is equipped with a handle at the top, which allows the operator to quickly disassemble and install the pallet by holding the handle, making the operation more convenient.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Significantly improved assembly and disassembly efficiency: This utility model can quickly snap and fix the positioner by using an elastic element and a clamping plate. No special tools are required. The positioner can be installed by its own weight and disassembled by the spring force. The handle design further simplifies the replacement of the clamping plate and greatly shortens the installation and disassembly time.

[0014] 2. High versatility: This utility model can adopt an arc-shaped structure for the guide plate and adapt the opening size to the width of the positioner sensor, which facilitates the smooth insertion of the positioner; by replacing the guide plate with different specifications of slots, it can be quickly adapted to various models of valve positioners without replacing the entire installation structure, thus reducing equipment maintenance costs.

[0015] 3. High structural stability: This utility model can effectively guide and limit the spring through the limiting sleeve, effectively restricting the radial swing of the spring, reducing fatigue damage of elastic components, and extending service life; at the same time, the elastic force of the spring keeps the positioner and the clamping plate in a stable fit, avoiding loosening caused by vibration.

[0016] 4. Good installation adaptability: This utility model can be flexibly fixed to a horizontal or vertical mounting surface through the mounting holes on the horizontal and vertical parts of the U-shaped mounting plate, making it suitable for different industrial installation environments and expanding its application range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the quick-assembly mechanism of the valve positioner of this utility model;

[0018] Figure 2 This is an isometric view of the quick-assembly mechanism of the valve positioner of this utility model;

[0019] Figure 3 This is a top view of the quick-release mechanism of the valve positioner of this utility model;

[0020] Figure 4 This utility model Figure 3 Sectional view at point AA.

[0021] Explanation of reference numerals in the attached drawings: 100, mounting base; 101, guide groove; 200, quick-change snap-fit ​​assembly; 210, guide plate; 220, snap plate; 221, snap groove; 222, handle; 230, elastic element; 231, limit cylinder; 232, spring; 300, mounting plate; 301, mounting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-4 As shown: This embodiment provides a quick-installation mechanism for a valve positioner, including a mounting base 100 for installing the valve positioner. The mounting base 100 is made of 304 stainless steel, which has good corrosion resistance and structural strength. A guide groove 101 is provided on the mounting base 100. A quick-change snap-fit ​​assembly 200 is provided on the upper part of the mounting base 100. The quick-change snap-fit ​​assembly 200 includes a guide plate 210 inserted into the guide groove 101. The guide plate 210 is made of 6061 aluminum alloy, which is lightweight and high-strength. A locking plate 220 is provided on the upper part of the guide plate 210. The locking plate 220 is made of 304 stainless steel. An elastic element 230 is provided on the lower part of the locking plate 220. A slot 221 adapted to the boss of the positioner is provided on the locking plate 220. This utility model can achieve quick snap-fit ​​installation and fixing of the positioner by using the elastic element 230 in conjunction with the locking plate 220, which greatly improves the efficiency of positioner installation and disassembly and makes operation more convenient.

[0024] According to one embodiment of the present invention, such as Figure 1 and Figure 4 As shown, the elastic element 230 includes multiple limiting cylinders 231 disposed on the mounting base 100. The limiting cylinders 231 are made of 45# steel, and each limiting cylinder 231 contains a spring 232 made of 65Mn spring steel, which has good elastic recovery performance. The upper parts of the multiple springs 232 are in contact with the lower part of the clamping plate 220. When no positioner is placed in the clamping groove 221, the lower part of the guide plate 210 is inserted into the guide groove 101. This utility model can use the limiting cylinders 231 to control the springs 232. The guiding and limiting function of 2 limits the radial swing of spring 232. When the locator is engaged with the clamping plate 220, the gravity of the locator can press the clamping plate 220 downward to press the guide plate 210 into the guide groove 101. Moreover, after the locator is separated from the clamping plate 220, the restoring elasticity of the spring 232 after compression can be used to lift the clamping plate 220 upward to separate it from the mounting base 100, which greatly improves the efficiency of disassembling and replacing the clamping plate 220.

[0025] According to another embodiment of the present invention, such as Figure 1 and Figure 2As shown, the guide plate 210 has an arc-shaped structure, and the line connecting the two ends of the arc at the opening is larger than the width of the sensor on the locator. This makes it easy to smoothly insert the locator into the slot 221 on the guide plate 210. Moreover, by quickly switching the guide plate 210 with slots 221 of different sizes, it is possible to quickly install and fix locators of different specifications, making it more versatile.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, an installation plate 300 is welded onto the outer wall of the mounting base 100. The installation plate 300 is made of Q235 carbon structural steel. The installation plate 300 is fixedly connected to the surface to be installed by bolts. This utility model can achieve efficient assembly and disassembly of the mounting base 100 by using the installation plate 300 and bolts, making the operation more convenient.

[0027] The mounting plate 300 has a U-shaped structure. The lower part of the horizontal portion of the mounting plate 300 is fixed to the outside of the mounting base 100. The upper part of the horizontal portion and the side wall of the vertical portion of the mounting plate 300 are provided with mounting holes 301 larger than the external thread diameter of the bolt. This utility model facilitates the quick installation and fixing of the mounting plate 300 on the horizontal or vertical plate through the mounting holes 301 on the horizontal and vertical portions of the mounting plate 300, making it more versatile.

[0028] The upper part of the pallet 220 is provided with a handle 222. The handle 222 is made of ABS engineering plastic and has anti-slip texture on the surface. This utility model allows the operator to quickly disassemble and install the pallet 220 by holding the handle 222, making the operation more convenient.

[0029] How to use this utility model:

[0030] First, it should be clarified that the quick-release mechanism involved in this utility model is mainly used for the installation and fixing of cylindrical parts with bosses. This utility model takes the quick installation and fixing of a valve positioner as an example to explain its working principle and usage method in detail. The working principle is as follows:

[0031] This invention achieves rapid installation and fixation of the valve positioner through the quick-change snap-fit ​​assembly 200. When installing the positioner, the boss of the positioner aligns with the slot 221 of the snap-fit ​​plate 220. Under the weight of the positioner itself, the snap-fit ​​plate 220 is pressed downward, the spring 232 is compressed within the limiting cylinder 231, and the guide plate 210 moves downward along the guide groove 101 until the boss of the positioner is fully embedded in the slot 221. At this time, the elastic force of the spring 232 acts in the opposite direction on the snap-fit ​​plate 220, so that the slot 221 and the boss fit tightly together, achieving stable fixation of the positioner.

[0032] When disassembling the positioner, lift it upwards. Spring 232, having lost pressure, returns to its original shape, pushing the retaining plate 220 upwards. Guide plate 210 returns to its original position along guide groove 101, separating the positioner's boss from the retaining groove 221, thus completing the disassembly. Limiting sleeve 231 restricts the radial displacement of spring 232 throughout the process, ensuring stable elastic force. U-shaped mounting plate 300, through mounting holes 301 in different directions, allows the mounting base 100 to be fixed on mounting surfaces at different angles. Handle 222 facilitates quick replacement of guide plates 210 of different specifications by the operator.

[0033] The usage method is as follows:

[0034] Mounting base 100 fixing: Select a horizontal or vertical mounting surface according to the installation environment, attach the horizontal or vertical part of the mounting plate 300 to the surface to be installed, and fix the mounting base 100 by passing bolts through the mounting holes 301.

[0035] Positioner installation: Align the boss of the valve positioner with the slot 221 on the plate 220, gently lower the positioner, and the positioner's own weight will cause the plate 220 to move down and the spring 232 to compress until the boss is fully embedded in the slot 221, thus completing the installation.

[0036] Positioner removal: Lift the positioner upwards. The spring 232 will push the plate 220 upwards, and the boss and the slot 221 will separate naturally. Then, remove the positioner.

[0037] Replacement of guide plate 210: When it is necessary to install a positioner of different specifications, lift the plate 220 upward by the handle 222 to pull the guide plate 210 out of the guide groove 101, replace the guide plate 210 with the corresponding specification slot 221, and insert the new guide plate 210 into the guide groove 101 to complete the replacement.

[0038] This utility model enables the quick installation and disassembly of valve positioners through a quick-installation mechanism. It solves the problem that traditional valve positioners are usually installed by direct bolt fixing or complex clamp structures, which require special tools for installation and disassembly, are cumbersome and time-consuming, and seriously affect production efficiency, especially during equipment maintenance.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A valve positioner quick mount mechanism comprising a mounting base (100) for mounting a valve positioner, characterized by: The mounting base (100) is provided with a guide groove (101), and a quick-change snap-fit ​​assembly (200) is provided on the upper part of the mounting base (100). The quick-change snap-fit ​​assembly (200) includes a guide plate (210) inserted in the guide groove (101), a locking plate (220) is provided on the upper part of the guide plate (210), an elastic element (230) is provided on the lower part of the locking plate (220), and a locking groove (221) adapted to the boss of the locator is provided on the locking plate (220).

2. The valve positioner quick mount mechanism of claim 1, wherein: The elastic element (230) includes a plurality of limiting cylinders (231) disposed on the mounting base (100). Each limiting cylinder (231) is provided with a spring (232). The upper part of the plurality of springs (232) contacts the lower part of the clamping plate (220). When no locator is placed in the clamping groove (221), the lower part of the guide plate (210) is inserted into the guide groove (101).

3. The valve positioner quick mount mechanism of claim 2, wherein: The guide plate (210) has an arc-shaped structure, and the line connecting the two ends of the arc length at the opening is larger than the width of the sensor on the positioner.

4. The valve positioner quick mount mechanism of claim 3, wherein: An mounting plate (300) is provided on the outer wall of the mounting base (100), and the mounting plate (300) is fixedly connected to the surface to be mounted by bolts.

5. The valve positioner quick mount mechanism of claim 4, wherein: The mounting plate (300) has a U-shaped structure. The lower part of the horizontal portion of the mounting plate (300) is fixed to the outside of the mounting base (100). Mounting holes (301) larger than the external thread diameter of the bolt are provided on the upper part of the horizontal portion and the side wall of the vertical portion of the mounting plate (300).

6. The valve positioner quick mount mechanism of claim 1, wherein: The upper part of the card plate (220) is provided with a handle (222).

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