Intelligent valve positioner

Abstract

The utility model provides an intelligent valve positioner which comprises an outer shell, the middle position of a lead screw is sleeved with a movable seat in a threaded mode, pressing frames are movably arranged on the two sides of the interior of an inner cavity through rotating shafts, and the inner sides of the pressing frames are connected with pressing blocks through springs. The rotatable first lead screw and the rotatable second lead screw are directly arranged at the top of the outer shell, when the positioner is installed, a valve body of an electro-pneumatic valve is placed between the pressing frames, then the second lead screw is rotated, the second lead screw drives the lifting base to slide downwards, and when the lifting base slides downwards, the side sliding base is pulled through the connecting rod to move downwards. Then a side sliding seat pushes one end of the top of a pressing frame to move through a push rod, the bottom of the pressing frame extrudes towards the inner side, then the valve body is pressed and fixed through a pressing block, finally, a user rotates a rotating rod, and a first bevel gear and a second bevel gear directly drive a first lead screw to rotate; the first lead screw is rotated to adjust the position of the movable base to the needed position, and then the electrical valve is debugged in the next step.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and relates to an intelligent valve positioner. Background Art

[0002] In industrial production systems, adjustments to environmental factors that are closely related to product quality, such as temperature, pressure, liquid level, concentration, etc., need to be adjusted through the opening (valve position) control of the regulating valve. Whether the valve position meets the production requirements is directly related to whether the entire production system can operate safely. The valve positioner is the main accessory of the regulating valve and is usually used in conjunction with pneumatic valves. The valve positioner can increase the output power of the regulating valve and speed up the movement of the valve stem. It is widely used in smart valves.

[0003] Application No. 202021604040.4 discloses a valve positioner, including a shell and a clamping unit, the bottom of the shell is fixedly connected to a mounting support, the bottom center of the mounting support is provided with a sliding groove, and the left and right sides of the bottom of the mounting support are fixedly connected to two symmetrically arranged fixing blocks. The utility model is provided with spring two, pressure block one, pressure block two and rotating shaft two. The spring two is arranged on one side of the pressure block one, and the pressure block one is rotatably connected to the pressure block two through the rotating shaft two. When in use, the valve body is clamped at multiple points by the spring two, pressure block one and pressure block two, thereby achieving a more secure clamping effect and avoiding unstable clamping. At the same time, the angle between pressure block one and pressure block two can change with the diameter of the valve body. The spring two can keep pressure block one and pressure block two always close to the valve body of the valve, which can play a good clamping and fixing effect for valve bodies of different diameters.

[0004] In the above-mentioned positioner structure, when the bottom is clamping the valve body, it is only compressed by the spring, and the stability is not enough. In the comparative document 1, whether it is a clamping operation or adjusting the position of the valve body after fixing, it is necessary to operate at the bottom of the shell. The space at the bottom of the shell is limited, and it is not convenient to operate, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent valve positioner to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An intelligent valve positioner comprises an outer shell, a support, a movable seat, an opening seat and a clamping frame, wherein supports are arranged on both sides of the bottom end of the outer shell, a lead screw is movably mounted on the bottom end of the outer shell through the support through a bearing, a movable seat is threadedly sleeved on the middle part of the lead screw, an inner cavity is opened inside the movable seat, clamping frames are movably arranged on both sides of the inner cavity through a rotating shaft, a clamping block is connected to the inner side of the clamping frame through a spring, and an opening seat is arranged in the middle part of the inner cavity.

[0008] In the above-mentioned intelligent valve positioner, an inner groove is opened in the middle of the outer shell, a slide bar is arranged at the bottom of the inner groove, a slider is fixedly connected to the top of the movable seat, and the slider is slidably sleeved outside the slide bar.

[0009] In the above-mentioned intelligent valve positioner, a lifting slide groove is provided inside the opening seat, and a lifting seat is slidably provided inside the lifting slide groove.

[0010] In the above-mentioned intelligent valve positioner, a second lead screw is movably arranged inside the lifting slide slot, the bottom end of the second lead screw is threadedly sleeved with the lifting seat, and the top end of the second lead screw passes through the inner slot and is placed at the top end position of the outer shell.

[0011] In the above-mentioned intelligent valve positioner, connecting rods are movably connected on both sides of the lifting seat, one end of the connecting rod is movably connected to a side sliding seat, one end of the side sliding seat is movably connected to one end of the clamping frame through a push rod, and conical end surfaces are provided on both sides of the opening seat, and the side sliding seat is slidably connected to the conical end surfaces.

[0012] In the above-mentioned intelligent valve positioner, one end of the lead screw 1 is fixedly connected to a bevel gear 1, a rotating rod is movably provided at the top side of the outer shell, the bottom end of the rotating rod is fixedly connected to a bevel gear 2, and one side of the bevel gear 2 is meshedly connected with the side of the bevel gear 1.

[0013] Compared with the prior art, the advantages of the intelligent valve positioner of the utility model are:

[0014] The present application directly sets rotatable lead screw 1 and lead screw 2 on the top of the outer shell. When the positioner needs to be installed, the two clamping frames are first opened, and the valve body of the electric valve is placed between the clamping frames. Then, lead screw 2 is rotated, and lead screw 2 drives the lifting seat to slide down. When the lifting seat slides down, the side sliding seat is pulled toward the bottom through the connecting rod, and then the side sliding seat pushes one end of the top of the clamping frame to move through the push rod, and the bottom of the clamping frame is squeezed toward the inside, and then the valve body is clamped and fixed by the clamping block. Finally, the user rotates the rotating rod to directly drive lead screw 1 to rotate through bevel gear 1 and bevel gear 2, and rotates lead screw 1 to adjust the position of the moving seat to the required position, and then proceeds to the next step of debugging the electric valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of an intelligent valve positioner.

[0016] Figure 2 The utility model is a schematic diagram of the structure of a movable seat of an intelligent valve positioner.

[0017] Figure 3 The utility model is a schematic diagram of the open seat structure of an intelligent valve positioner.

[0018] In the figure, 1, outer shell; 2, support; 3, lead screw 1; 4, moving seat; 5, bevel gear 1; 6, bevel gear 2; 7, rotating rod; 8, inner groove; 9, slider; 10, slide rod; 11, lead screw 2; 12, opening seat; 13, clamping frame; 14, clamping block; 15, lifting seat; 16, connecting rod; 17, side sliding seat; 18, push rod; 19, tapered end face. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] An intelligent valve positioner comprises an outer shell 1, a support 2, a movable seat 4, an opening seat 12 and a clamping frame 13. Supports 2 are arranged on both sides of the bottom end of the outer shell 1. A lead screw 3 is movably mounted on the bottom end of the outer shell 1 through the support 2 through a bearing. A movable seat 4 is threadedly sleeved on the middle part of the lead screw 3. An inner cavity is opened inside the movable seat 4. Clamping frames 13 are movably arranged on both sides of the inner cavity through a rotating shaft. A clamping block 14 is connected to the inner side of the clamping frame 13 through a spring. An opening seat 12 is arranged in the middle part of the inner cavity.

[0021] like Figure 1 , Figure 2 , Figure 3As shown, the utility model is an intelligent valve positioner. Specifically, an inner groove 8 is opened in the middle of the outer shell 1, a slide bar 10 is arranged at the bottom of the inner groove 8, a slide block 9 is fixedly connected to the top of the movable seat 4, and the slide block 9 is slidably sleeved outside the slide bar 10.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is an intelligent valve positioner. Specifically, a lifting slide groove is provided inside the opening seat 12, and a lifting seat 15 is slidably provided inside the lifting slide groove.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is an intelligent valve positioner. Specifically, a screw 11 is movably arranged inside the lifting slide. The bottom end of the screw 11 is threadedly sleeved with the lifting seat 15, and the top end of the screw 11 passes through the inner groove 8 and is placed at the top position of the outer shell 1.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is an intelligent valve positioner. Specifically, both sides of the lifting seat 15 are movably connected with connecting rods 16, one end of the connecting rod 16 is movably connected with a side sliding seat 17, one end of the side sliding seat 17 is movably connected to one end of the clamping frame 13 through a push rod 18, and both sides of the opening seat 12 are provided with conical end surfaces 19, and the side sliding seat 17 is slidably connected to the conical end surfaces 19.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is an intelligent valve positioner. Specifically, one end of a lead screw 3 is fixedly connected to a bevel gear 5, a rotating rod 7 is movably provided on the top side of an outer shell 1, and a bottom end of the rotating rod 7 is fixedly connected to a bevel gear 2 6, and one side of the bevel gear 2 6 is meshedly connected with the side of the bevel gear 5.

[0026] The utility model discloses an intelligent valve positioner. When the positioner needs to be installed, first open the two clamping frames 13, put the valve body of the electric valve between the clamping frames 13, and then rotate the lead screw 11, the lead screw 11 drives the lifting seat 15 to slide down, and when the lifting seat 15 slides down, the side sliding seat 17 is pulled toward the bottom by the connecting rod 16, and then the side sliding seat 17 pushes one end of the top of the clamping frame 13 to move through the push rod 18, and the bottom of the clamping frame 13 is squeezed toward the inside, and then the valve body is clamped and fixed by the clamping block 14, and finally, the user rotates the rotating rod 7, and directly drives the lead screw 3 to rotate through the bevel gear 15 and the bevel gear 26, and rotates the lead screw 3 to adjust the position of the moving seat 4 to the required position, and then the next step of debugging the electric valve is carried out.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An intelligent valve positioner, comprising an outer shell (1), a support (2), a movable seat (4), an opening seat (12) and a pressing frame (13), characterized in that: Supports (2) are provided on both sides of the bottom end of the outer shell (1); a lead screw (3) is movably mounted on the bottom end of the outer shell (1) through the support (2) via a bearing; a movable seat (4) is threadedly sleeved in the middle of the lead screw (3); an inner cavity is provided in the movable seat (4); a clamping frame (13) is movably provided on both sides of the inner cavity via a rotating shaft; a clamping block (14) is connected to the inner side of the clamping frame (13) via a spring; and an opening seat (12) is provided in the middle of the inner cavity.

2. The intelligent valve positioner according to claim 1, characterized in that: An inner groove (8) is provided in the middle of the outer shell (1), a slide bar (10) is provided at the bottom of the inner groove (8), a slide bar (9) is fixedly connected to the top of the movable seat (4), and the slide bar (9) is slidably sleeved outside the slide bar (10).

3. The intelligent valve positioner according to claim 1, characterized in that: A lifting slot is provided inside the opening seat (12), and a lifting seat (15) is slidably provided inside the lifting slot.

4. The intelligent valve positioner according to claim 3, characterized in that: A second lead screw (11) is movably arranged inside the lifting slide slot, the bottom end of the second lead screw (11) is threadedly sleeved with the lifting seat (15), and the top end of the second lead screw (11) passes through the inner groove (8) and is placed at the top end of the outer shell (1).

5. The intelligent valve positioner according to claim 4, characterized in that: Both sides of the lifting seat (15) are movably connected with connecting rods (16), one end of the connecting rod (16) is movably connected with a side sliding seat (17), one end of the side sliding seat (17) is movably connected to one end of the clamping frame (13) through a push rod (18), and both sides of the opening seat (12) are provided with conical end surfaces (19), and the side sliding seat (17) is slidably connected to the conical end surfaces (19).

6. The intelligent valve positioner according to claim 1, characterized in that: One end of the lead screw 1 (3) is fixedly connected to a bevel gear 1 (5), a rotating rod (7) is movably provided at the top side of the outer shell (1), a bottom end of the rotating rod (7) is fixedly connected to a bevel gear 2 (6), and one side of the bevel gear 2 (6) is meshingly connected to the side of the bevel gear 1 (5).

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