Valve positioner fixing assembly

Abstract

The utility model discloses a valve positioner fixing assembly, and relates to the technical field of valve positioner fixing, and the valve positioner fixing assembly comprises a mounting plate, a sliding plate is slidably mounted in the mounting plate, one side of the mounting plate and one side of the sliding plate are jointly provided with an adjusting mechanism, a fixing mechanism is arranged in the sliding plate, and the adjusting mechanism comprises a sliding rod; according to the valve positioner fixing device, the adjusting mechanism is arranged, the sliding plate can be moved to different positions through the adjusting mechanism, therefore, valve positioners at different positions can be fixed, after the valve positioners are fixed, an adjustable space still exists, and the valve positioners can be fixed conveniently. According to the valve positioner, the applicability of the valve positioner can be improved, the fixing mechanism is arranged, the two-way lead screw rotates, the two connecting pieces can be indirectly driven to move, and therefore the valve positioner can be suitable for valve positioners of different models, and the situation that the valve positioner falls off is reduced.

Description

Technical Field

[0001] This application relates to the field of valve positioner fixing technology, and in particular to valve positioner fixing components. Background Technology

[0002] Valve positioners, classified by structure into pneumatic valve positioners, electro-pneumatic valve positioners, and intelligent valve positioners, are the main accessories of control valves. They are usually used in conjunction with pneumatic control valves. They receive the output signal from the controller and then use their output signal to control the pneumatic control valve. After the control valve is activated, 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] Regarding the aforementioned technologies, the inventors believe the following problems still exist:

[0004] Firstly, some existing valve positioners are usually fixed with bolts. This method of fixing makes the valve relatively stable, but it is inconvenient when the valve positioner needs to be adjusted, thus reducing its practicality.

[0005] Secondly, due to different models, some existing valve positioners have different fixing points, which makes the fixing effect of some valve positioners poor when directly fixed with bolts, thus posing a risk of falling off.

[0006] To address the aforementioned problems, the inventors proposed a valve positioner fixing assembly to solve these issues. Utility Model Content

[0007] In order to improve the problems of inconvenient adjustment of the above-mentioned device and poor fixing effect of direct use of bolts, the purpose of this utility model is to provide a valve positioner fixing component.

[0008] To solve the above problems, this utility model provides the following solution: a valve positioner fixing assembly, including a mounting plate, a sliding plate slidably mounted inside the mounting plate, an adjusting mechanism shared on one side of the mounting plate and the sliding plate, a fixing mechanism inside the sliding plate, the adjusting mechanism including a slide rod, the slide rod being fixedly mounted inside the mounting plate and slidably sleeved with the sliding plate, first springs being mirror-mounted on the upper and lower sides of the sliding plate, and the first springs being movably sleeved on the outer surface of the slide rod, multiple grooves being formed inside the sliding plate, a second spring being fixedly mounted on the inner wall of one side of each groove, and a locking block being fixedly mounted on one end of each second spring, the locking block sliding inside the groove.

[0009] Preferably, the fixing mechanism includes a bidirectional lead screw, which is rotatably mounted inside one side of the sliding plate. The outer surface of the bidirectional lead screw has sliders threaded on at opposite thread directions. A limit block is fixedly mounted on one side of the slider, and the limit block is slidably inserted into one side of the sliding plate. A connector is fixedly mounted on one side of the slider.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting an adjustment mechanism, allows the sliding plate to be moved to different positions, thereby fixing the valve positioner at different positions. After the valve positioner is fixed, there is still room for adjustment, which can improve the applicability of the valve positioner.

[0012] 2. This utility model, by setting a fixing mechanism, can indirectly drive the movement of two connecting parts through the rotation of a bidirectional lead screw, thus making it applicable to different models of valve positioners and reducing the possibility of valve positioners falling off. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model.

[0016] Figure 3 This is a schematic diagram of part of the adjustment mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0018] In the diagram: 1. Mounting plate; 2. Adjustment mechanism; 21. First spring; 22. Slide rod; 23. Slot; 24. Block; 25. Limiting ring; 26. Second spring; 27. Groove; 3. Fixing mechanism; 31. Knob; 32. Two-way lead screw; 33. Slider; 34. Limiting groove; 35. Connector; 36. Limiting block; 4. Sliding plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1-4 As shown, this utility model provides a valve positioner fixing assembly, including a mounting plate 1. The mounting plate 1 can be installed on one side of the valve body to fix the assembly. A sliding plate 4 is slidably installed inside the mounting plate 1. The sliding plate 4 slides inside the mounting plate 1. An adjustment mechanism 2 is provided on one side of the mounting plate 1 and the sliding plate 4. The adjustment mechanism 2 can adjust the position of the sliding plate 4. A fixing mechanism 3 is provided inside the sliding plate 4. The fixing mechanism 3 can fix the valve positioner.

[0021] The adjusting mechanism 2 includes a slide rod 22, which is fixedly installed inside the mounting plate 1. The mounting plate 1 supports the slide rod 22 to prevent it from falling off. The slide rod 22 is slidably sleeved with the sliding plate 4, allowing the sliding plate 4 to slide on the outer surface of the slide rod 22, thereby adjusting the position of the sliding plate 4. The upper and lower sides of the sliding plate 4 are mirror-mounted with first springs 21, which can adjust the sliding plate 4. The first springs 21 are movably sleeved on the outer surface of the slide rod 22, causing the first springs 21 to press the sliding plate 4, thereby keeping the sliding plate 4 in the center position.

[0022] The sliding plate 4 has multiple grooves 27 inside, which can hold the second spring 26. The grooves 27 are arranged in a rectangular array on one side of the sliding plate 4 to improve the fixing effect of the locking block 24. The second spring 26 is fixedly installed on the inner wall of one side of the groove 27. The second spring 26 can compress the locking block 24. The locking block 24 is fixedly installed at one end of the second spring 26 so that the locking block 24 can be locked inside the mounting plate 1. A limiting ring 25 that cooperates with the locking block 24 is fixedly installed on one side of the groove 27. The limiting ring 25 can prevent the locking block 24 from falling off. The locking block 24 slides inside the groove 27 to prevent the locking block 24 from falling out of the groove 27. Multiple slots 23 that cooperate with the locking block 24 are opened on both sides of the mounting plate 1 so that the locking block 24 cooperates with the slots 23 to lock the sliding plate 4 in the appropriate position of the mounting plate 1.

[0023] The fixing mechanism 3 includes a bidirectional lead screw 32, which is mirror-distributed on both sides of the sliding plate 4. The bidirectional lead screw 32 drives the sliders 33 on both sides to move. A knob 31 is rotatably mounted on the top surface of the sliding plate 4, so that the knob 31 rotates on the sliding plate 4. The bottom surface of the knob 31 is fixedly connected to the bidirectional lead screw 32. The knob 31 drives the bidirectional lead screw 32 to rotate. The bidirectional lead screw 32 is rotatably mounted inside one side of the sliding plate 4, so that the bidirectional lead screw 32 rotates inside one side of the sliding plate 4.

[0024] The outer surface of the bidirectional lead screw 32 has two sliders 33 threadedly fitted at opposite thread directions, so that the bidirectional lead screw 32 drives the two sliders 33 to move. A limit block 36 is fixedly installed on one side of the slider 33, which can limit the slider 33. The limit block 36 is slidably inserted into the inside of one side of the sliding plate 4, so that the limit block 36 slides inside the sliding plate 4. A limit groove 34 is opened on the inner wall of one side of the sliding plate 4 to cooperate with the limit block 36. The limit block 36 cooperates with the limit groove 34 to prevent the slider 33 from deviating from its position. A connector 35 is fixedly installed on one side of the slider 33, which can fix the valve positioner.

[0025] Working principle: First, install the mounting plate 1 in a suitable position on the valve body. Then, adjust the valve positioner to match the valve body. Use the adjusting mechanism 2 to move the sliding plate 4, so that the sliding plate 4 squeezes the first spring 21 and slides along the slide rod 22. When adjusted to the closed position, the second spring 26 inside the groove 27 squeezes the locking block 24. The limiting ring 25 can restrict the locking block 24 to prevent it from falling off, so that the locking block 24 matches the locking groove 23 on the mounting plate 1 for fixation, and so that the sliding plate 4 contacts the valve positioner.

[0026] Then, the valve positioner can be installed using the fixing mechanism 3. The double-acting screw 32 can be rotated using the knob 31, causing the double-acting screw 32 to drive the two sliders 33 to move. At the same time, the limiting block 36 cooperates with the limiting groove 34 to limit the sliders 33. Then the sliders 33 can drive the two connecting parts 35 to move. When the connecting parts 35 are aligned with the connecting holes on the valve holder, the valve holder can be installed.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A valve positioner fixing assembly, including a mounting plate (1), characterized in that: A sliding plate (4) is slidably installed inside the mounting plate (1). An adjustment mechanism (2) is provided on one side of the mounting plate (1) and the sliding plate (4). A fixing mechanism (3) is provided inside the sliding plate (4). The adjustment mechanism (2) includes a slide rod (22), which is fixedly installed inside the mounting plate (1). The slide rod (22) is slidably sleeved with the sliding plate (4). The upper and lower sides of the sliding plate (4) are mirror-mounted with a first spring (21), and the first spring (21) is movably sleeved on the outer surface of the slide rod (22). The sliding plate (4) has multiple grooves (27) inside. A second spring (26) is fixedly installed on the inner wall of one side of the groove (27). A locking block (24) is fixedly installed at one end of the second spring (26), and the locking block (24) slides inside the groove (27).

2. The valve positioner fixing assembly according to claim 1, characterized in that: The fixing mechanism (3) includes a bidirectional lead screw (32), which is rotatably installed inside one side of the sliding plate (4). The outer surface of the bidirectional lead screw (32) is threaded with sliders (33) at opposite thread directions. A limit block (36) is fixedly installed on one side of the slider (33), and the limit block (36) is slidably inserted inside one side of the sliding plate (4). A connector (35) is fixedly installed on one side of the slider (33).

3. The valve positioner fixing assembly according to claim 1, characterized in that: A limiting ring (25) that works in conjunction with the locking block (24) is fixedly installed on one side of the groove (27).

4. The valve positioner fixing assembly according to claim 2, characterized in that: The mounting plate (1) has multiple slots (23) on both sides that are used in conjunction with the card block (24).

5. The valve positioner fixing assembly according to claim 2, characterized in that: Multiple grooves (27) are arranged in a rectangular array on one side of the sliding plate (4).

6. The valve positioner fixing assembly according to claim 2, characterized in that: The bidirectional lead screw (32) is mirror-distributed on both sides of the sliding plate (4).

7. The valve positioner fixing assembly according to claim 2, characterized in that: A knob (31) is rotatably mounted on the top surface of the sliding plate (4), and the bottom surface of the knob (31) is fixedly connected to the bidirectional lead screw (32).

8. The valve positioner fixing assembly according to claim 2, characterized in that: The inner wall of one side of the sliding plate (4) is provided with a limiting groove (34) that works in conjunction with the limiting block (36).

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