Adjustable high-precision valve transponder device

Abstract

The utility model belongs to the field of sensors, and relates to valve switch position signal feedback, in particular to an adjustable high-precision valve transponder device which comprises a shell, a central spindle is arranged at the center of the shell, one end of the central spindle penetrates out of the shell and is fixedly connected with an indicating arrow, and the central spindle comprises a cam portion in the middle. An annular groove is formed in the shell and surrounds the outside of the mandrel, two movable plates are arranged in the annular groove, and the upper sides of the movable plates are fixedly connected with microswitches used for detecting the cam parts. According to the utility model, the microswitch is moved by rotating the adjusting bolt, and then angle data uploaded by the microswitch are corrected, so that the angle correcting device is convenient to use, and the measurement error caused by assembly is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of sensors, relates to the signal feedback of the valve switch position, and particularly relates to an adjustable high-precision valve position indicator device. Background Art

[0002] For the existing position indicator device, the position indication accuracy is low. The reason is that during the assembly of a driving device such as a valve control unit, due to the existence of installation errors, the position indicator cannot accurately reflect the opening and closing conditions of the valve after installation. During remote control, the valve cannot accurately reach the maximum opening or be tightly closed, and the performance of the valve cannot reach the optimal state. Summary of the Utility Model

[0003] Aiming at the problem that the existing position indicator device cannot accurately monitor the rotation angle of the valve, the utility model provides an adjustable position indicator device. When the valve does not rotate, after adjustment, the angle data detected by the monitoring end through the position indicator is corrected, aiming to reduce errors and conform to the actual rotation angle of the valve.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an adjustable high-precision valve position indicator device, including a housing. A core shaft is arranged at the center of the housing. One end of the core shaft passes through the housing and is fixedly connected with an indicating arrow. The core shaft includes a cam portion in the middle. An annular groove is arranged inside the housing and surrounds the core shaft. Two movable plates are arranged in the annular groove. The movable plate is provided with a movable slot. A limit bolt for restricting the movable plate in the annular groove is arranged in the movable slot. The limit bolt is connected with the bottom of the annular groove. A microswitch for detecting the cam portion is fixedly connected to the upper side of the movable plate. An adjusting bolt is rotatably connected to the side surface of the housing. The adjusting bolt is threadedly connected with a threaded hole pin. The movable plate is provided with a long slot hole corresponding to the threaded hole pin. The threaded hole pin includes a threaded portion and an insertion end. The lower side of the threaded portion presses on the long slot hole, and the insertion end is inserted into the long slot hole.

[0005] Preferably, two counterbores are arranged on the outer side surface of the housing corresponding to the two movable plates. The counterbores communicate with bolt holes. The adjusting bolt passes through the counterbores and the bolt holes. A hole card for restricting the adjusting bolt in the counterbore is arranged in the counterbore.

[0006] Preferably, the hole card is in a circular ring shape.

[0007] Preferably, the cross section of the cam portion is fan-shaped.

[0008] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0009] The utility model corrects the angle data uploaded by the microswitch by rotating and adjusting the bolt, so that the microswitch moves. Therefore, the utility model is convenient to use, reduces the measurement error caused by assembly, and makes the measurement of the valve rotation angle by the positioner device more accurate. Brief Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic structural diagram of an adjustable high-precision valve positioner device;

[0012] Figure 2 It is a cross-sectional view of an adjustable high-precision valve positioner device;

[0013] Figure 3 It is a schematic structural diagram of a mandrel;

[0014] Figure 4 It is a schematic structural diagram of a screw hole pin;

[0015] Figure 5 It is a schematic structural diagram of a movable plate.

[0016] In the above figures, 1. housing; 11. annular groove; 12. counterbore; 13. bolt hole; 2. mandrel; 21. cam portion; 3. indicating arrow; 4. movable plate; 41. movable groove; 42. limit bolt; 43. long slot hole; 5. microswitch; 51. detection end; 6. adjusting bolt; 7. hole card; 8. screw hole pin; 81. threaded portion; 82. insertion end. Detailed Description of the Embodiments

[0017] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following will further illustrate the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0019] Such as Figure 1 、 Figure 2 、 Figure 3 、Figure 4 , Figure 5 As shown in Figure 5 , an adjustable high-precision valve positioner device includes a housing 1. A core shaft 2 is provided at the center of the housing 1. One end of the core shaft 2 passes through the housing 1 and is fixedly connected to an indicating arrow 3. The other end of the core shaft 2 is connected to a hypothetical device A (i.e., the valve). The housing 1 is connected to a hypothetical device B, and the device B remains fixed. When the hypothetical device A rotates, it drives the core shaft 2 and the indicating arrow 3 to rotate.

[0020] For easy adjustment, the core shaft 2 includes a cam portion 21 in the middle. An annular groove 11 is provided inside the housing 1. The annular groove 11 surrounds the core shaft 2. Two movable plates 4 are provided in the annular groove 11. The movable plates 4 can move in the annular groove 11. The movable plates 4 are provided with movable grooves 41. A limit bolt 42 for restricting the movable plates 4 in the annular groove 11 is provided in the movable grooves 41. The limit bolt 42 is connected to the bottom of the annular groove 11. Similarly, the moving range of the movable plates 4 in the annular groove 11 is also limited by the length of the movable grooves 41. A microswitch 5 for detecting the cam portion 21 is fixedly connected to the upper side of the movable plates 4. In the prior art, the microswitch 5 includes a detection end 51. When the cam portion 21 rotates, it will gradually squeeze or move away from the detection end 51. According to the degree of extrusion, the microswitch 5 generates different signals for uploading, and then the rotation angle of the hypothetical device A is analyzed. An adjustment bolt 6 is rotatably connected to the side surface of the housing 1. The adjustment bolt 6 is threadedly connected to a screw hole pin 8. The movable plate 4 is provided with a long slot hole 43 corresponding to the screw hole pin 8. The screw hole pin 8 includes a threaded portion 81 above and an insertion end 82 below. The lower side of the threaded portion 81 presses on the long slot hole 43. The threaded portion 81 cannot pass through the long slot hole 43, and the insertion end 82 is inserted into the long slot hole 43. When the threaded pin moves along the adjustment bolt 6, the insertion end 82 moves in the long slot hole 43, and at the same time drives the movable plate 4 to move.

[0021] Specifically, the present utility model adjusts the position of the microswitch 5 by moving the movable plate 4, so as to change the detected data. In order to facilitate the adjustment of the movable plate 4 inside the housing 1, the housing 1 and the adjustment bolt 6 of the present utility model are rotatably connected. The adjustment bolt 6 can only rotate, thereby driving the screw hole pin 8 to move along the adjustment bolt 6. Due to the existence of the long slot hole 43, the screw hole pin 8 can drive the movable plate 4 to move, thereby adjusting the position of the microswitch 5. The detection end 51 is either close to or away from the cam portion 21 or the degree of extrusion changes, and the angle data presented after the monitoring end receives the signal of the microswitch 5 is thus changed.

[0022] Further, two counterbores 12 are provided on the outer side surface of the housing 1 corresponding to the two movable plates 4. The counterbores 12 communicate with bolt holes 13. The screw hole pin 8 passes through the counterbores 12 and the bolt holes 13. A hole clip 7 for restricting the adjustment bolt 6 in the counterbores 12 is provided in the counterbores 12.

[0023] Furthermore, the hole card 7 is in an annular shape and does not prevent the insertion of the hexagon socket head bolt into the end of the adjusting bolt 6 located in the counterbore 12. The hole card 7 is fixed in the counterbore 12 by means of gluing or the like.

[0024] Furthermore, a seal is provided in the bolt hole 13 to improve the waterproof performance.

[0025] Furthermore, the cross-section of the cam portion 21 is fan-shaped. When the mandrel 2 rotates, the pressure exerted by the cam portion 21 on the detection end 51 changes.

[0026] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable high-precision valve positioner device, comprising a housing, a core shaft is arranged at the center of the housing, one end of the core shaft passes through the housing and is fixedly connected with an indicating arrow, the core shaft includes a cam portion in the middle, and it is characterized in that, An annular groove is provided inside the outer shell. The annular groove surrounds the mandrel. Two movable plates are provided in the annular groove. A microswitch for detecting the cam portion is fixedly connected to the upper side of the movable plate.

2. The adjustable high-precision valve positioner device according to claim 1, characterized in that, The movable plate is provided with a movable groove. A limit bolt for restricting the movable plate in the annular groove is provided in the movable groove. The limit bolt is connected to the bottom of the annular groove.

3. An adjustable high-precision valve positioner device according to claim 2, characterized in that, An adjusting bolt is rotatably connected to the side surface of the outer shell. The adjusting bolt is threadedly connected with a screw hole pin. The movable plate is provided with a long slot hole corresponding to the screw hole pin. The screw hole pin includes a threaded portion and an insertion end. The lower side of the threaded portion presses on the long slot hole, and the insertion end is inserted into the long slot hole.

4. An adjustable high-precision valve positioner device according to claim 3, characterized in that, Two counterbores are provided on the outer side surface of the outer shell corresponding to the two movable plates. The counterbores communicate with bolt holes. The adjusting bolt passes through the counterbores and the bolt holes. A hole card for restricting the adjusting bolt in the counterbore is provided in the counterbore.

5. An adjustable high-precision valve positioner device according to claim 4, characterized in that, The hole card is in a circular ring shape.

6. An adjustable high-precision valve positioner device according to claim 5, characterized in that, The cross section of the cam portion is fan-shaped.

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