CN220102260U - Inductive valve position feedback assembly - Google Patents
Inductive valve position feedback assembly Download PDFInfo
- Publication number
- CN220102260U CN220102260U CN202120263516.0U CN202120263516U CN220102260U CN 220102260 U CN220102260 U CN 220102260U CN 202120263516 U CN202120263516 U CN 202120263516U CN 220102260 U CN220102260 U CN 220102260U
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- Prior art keywords
- bracket
- induction
- piece
- fixing piece
- valve position
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- 230000001939 inductive effect Effects 0.000 title claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001976 improved effect Effects 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses an inductive valve position feedback assembly, which comprises: a first bracket; the sensor is arranged on the first bracket; the fixing piece is arranged on the first bracket; the induction rod penetrates through the fixing piece in a sliding sealing manner, and two ends of the induction rod penetrate through the fixing piece; the second bracket is fixedly connected to the first end of the induction rod and is provided with a limiting part, and the limiting part limits the second bracket to rotate relative to the first bracket; the induction piece is arranged on the second bracket, the second bracket and the induction piece are driven to move when the induction rod slides, and the moving stroke of the induction piece passes through the induction position of the inductor; the elastic piece is arranged between the induction rod and the fixing piece, and the second end of the elastic piece is far away from the fixing piece due to the elastic force applied to the induction rod; the valve position return component prevents the sensing piece from deviating from the sensing position of the sensor, and has good sensing effect and high reliability.
Description
Technical Field
The utility model belongs to the technical field of valve feedback, and particularly relates to an inductive valve position feedback assembly.
Background
The valve position return signal component is used for detecting and outputting a switch in-place signal of the straight-stroke control valve, and the switch state of the valve is obtained by detecting the position of the valve piston. Referring to fig. 4 and 5, a piston is arranged in a valve cylinder, the cylinder is provided with an upper power air source inlet and a lower power air source inlet, one inlet is used for air intake, the other inlet is used for air exhaust under the control of an electromagnetic valve, the piston moves up and down under the drive of the pressure difference of the upper air source and the lower air source, and when the piston moves to an upper limit, the valve is completely opened, and when the piston moves to a lower limit, the valve is completely closed. The two valve position return assemblies are respectively arranged at the upper end and the lower end of the air cylinder, and when the piston moves to the upper limit position and the lower limit position, the piston is propped against the valve position return assemblies to be sensed by the valve position return assemblies, so that the opening or closing of the valve is sensed. Wherein, FIG. 4 shows the valve position feedback assembly at the upper end being triggered, the valve is fully opened; FIG. 5 shows the lower valve position return assembly triggered and the valve fully closed.
The existing valve position return signal assembly has poor induction effect and low reliability.
Disclosure of Invention
In order to solve the above problems, the present utility model aims to provide a valve position feedback assembly of an induction valve, which prevents an induction member from deviating from an induction position of an inductor, and has good induction effect and high reliability.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an inductive valve position feedback assembly comprising:
a first bracket;
the sensor is arranged on the first bracket;
the fixing piece is arranged on the first bracket;
the induction rod penetrates through the fixing piece in a sliding sealing manner, and two ends of the induction rod penetrate through the fixing piece;
the second bracket is fixedly connected to the first end of the induction rod and is provided with a limiting part, and the limiting part limits the second bracket to rotate relative to the first bracket;
the induction piece is arranged on the second bracket, the second bracket and the induction piece are driven to move when the induction rod slides, and the moving stroke of the induction piece passes through the induction position of the inductor;
the elastic piece is arranged between the induction rod and the fixing piece, and the second end of the elastic piece is far away from the fixing piece due to the elastic force applied to the induction rod;
the fixed part is used for penetrating through the cylinder wall of the valve, the first support is fixed on the outer wall of the cylinder, the second end of the induction rod is used for penetrating through the cylinder, the piston in the cylinder pushes the induction rod to slide, and the induction rod drives the induction part to move to the induction position to be sensed by the sensor.
According to an embodiment of the present utility model, the limiting portion is two limiting claws disposed on the second support, the two limiting claws respectively abut against two sides of the first support, and the two limiting claws are always located on two sides of the first support during the moving process of the second support.
According to an embodiment of the present utility model, the sensor is a magnetic sensor, and the sensing element is a magnet assembly.
According to one embodiment of the utility model, the magnet assembly comprises a stainless steel sleeve and a magnet, wherein the magnet is arranged in the stainless steel sleeve.
According to an embodiment of the utility model, the fixing element is screwed to the cylinder wall.
According to an embodiment of the utility model, the elastic member is a spring sleeved on the sensing rod.
By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:
(1) In the embodiment of the utility model, the second bracket can not rotate relative to the first bracket by the limiting part arranged on the second bracket, thereby preventing the sensing piece from deviating from the sensing position of the sensor,
the reliability is greatly improved.
(2) In the embodiment of the utility model, the sensor is a magnetic sensor, the fixing piece is a magnet component, and the magnet component has strong magnetism and is easier to sense by the magnetic sensor, so that the detection reliability is improved.
(3) In the embodiment of the utility model, the magnet is arranged in the stainless steel sleeve, so that the magnet is prevented from being corroded, and the reliability of long-term use is improved.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of an inductive valve position feedback assembly according to the present utility model;
FIG. 2 is a partial top view of an inductive valve position feedback assembly according to the present utility model;
FIG. 3 is an exploded view of an induction valve position feedback assembly according to the present utility model;
FIG. 4 is a schematic diagram of a conventional valve position feedback assembly application installation;
FIG. 5 is a second schematic diagram of a conventional valve position feedback assembly application.
Reference numerals illustrate:
1: a first bracket; 2: a magnetic sensor; 3: installing a bolt; 4: a magnet assembly; 5: a fixing member; 6: an induction rod; 7: a flange; 8: a spring; 9: a second bracket; 10: a lock nut; 11: an O-shaped sealing ring; 12: a limit claw; 13: a piston; 14: a cylinder; 15: valve position return assembly.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. Advantages and features of the utility model will become more apparent from the following description and from the claims. It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
With reference to fig. 1 to 3, the core of the present utility model is to provide an induction type valve position feedback assembly, which comprises a first bracket 1, an inductor, a fixing member 5, an induction rod 6, a second bracket 9, an induction member and an elastic member. The sensor and the fixing piece 5 are both arranged on the first bracket 1; the induction rod 6 penetrates through the fixing piece 5 in a sliding sealing manner, and two ends of the induction rod 6 penetrate through the fixing piece 5; the second bracket 9 is fixedly connected to the first end of the induction rod 6, and the second bracket 9 is provided with a limiting part which limits the second bracket 9 to rotate relative to the first bracket 1; the sensing piece is arranged on the second bracket 9, the sensing rod 6 drives the second bracket 9 and the sensing piece to move when sliding, and the moving stroke of the sensing piece passes through the sensing position of the sensor; the elastic member is disposed between the sensing rod 6 and the fixing member 5, and the second end of the elastic member is moved away from the fixing member 5 by the elastic force applied to the sensing rod 6.
Wherein, mounting 5 is used for wearing to establish at the cylinder 14 wall of valve, and it is fixed first support 1 at the cylinder 14 outer wall simultaneously, and the second end of response pole 6 is used for wearing to establish in cylinder 14, and the piston 13 in the cylinder 14 promotes response pole 6 slip, and response pole 6 drives the response piece and removes to the sensing position in order to be sensed by the inductor.
Through setting up the spacing portion on second support 9 so that second support 9 can not rotate relative first support 1, prevented the sensing position of sensor skew inductor, make the reliability improve greatly.
The following describes the inductive valve position feedback assembly of the present utility model in detail:
the first bracket 1 and the second bracket 9 are both L-shaped brackets. The first side of the L-shaped first bracket 1 is provided with a through hole, the fixing piece 5 is arranged through the through hole, the fixing piece 5 in the embodiment is a hollow bolt, the outer wall is provided with threads, the threads are used for enabling the fixing piece 5 to be in threaded connection with the wall of the valve cylinder 14, meanwhile, the fixing piece 5 tightly presses and fixes the first bracket 1 on the outer wall of the cylinder 14, and the fixing piece 5 is in threaded connection with the cylinder 14 to realize pressure-resistant sealing, so that air leakage of the cylinder 14 is prevented.
The second side of the L-shaped first bracket 1 is provided with a U-shaped groove, and the inductor is arranged in the U-shaped groove, so that the position of the inductor can be conveniently adjusted by the U-shaped groove.
Two O-shaped sealing rings 11 are arranged between the induction rod 6 and the fixing piece 5 so as to realize sliding sealing connection with the fixing piece 5. The sensing rod 6 is provided with a flange 7, in this embodiment, the elastic member is a spring 8 sleeved on the sensing rod 6, and the spring 8 is located between the fixing member 5 and the flange 7, and the spring 8 applies an elastic force to the sensing rod 6 towards the cylinder 14, so that the sensing rod 6 can be automatically reset after being pushed out by the piston 13.
The first end of the induction rod 6 is provided with external threads, through holes are formed in two sides of the second support 9"L ', the first side of the second support 9"L' is sleeved on the first end of the induction rod 6, and the first side of the second support is fixed with the first end of the induction rod 6 through the lock nut 10 and the gasket. The through hole on the second side of the second bracket 9"L' is penetrated with the mounting bolt 3 and is fixed with the second bracket 9 by two nuts, and the sensing piece is arranged on the mounting bolt 3 and is opposite to the sensor.
In this embodiment, the limiting portion is two limiting claws 12 disposed at the end of the first side of the second bracket 9"L", the two limiting claws 12 respectively abut against two sides of the second side of the l-shape of the first bracket 1, and the two limiting claws 12 are always located at two sides of the first bracket 1 during the moving process of the second bracket 9, that is, the two limiting claws 12 slide relatively with the first bracket 1 during the moving process of the second bracket 9. The second bracket 9 can not rotate relative to the first bracket 1 through the two limiting claws 12, so that the sensing part is prevented from deviating from the sensing position of the sensor, and the reliability is greatly improved.
In this embodiment, the sensor is a magnetic sensor 2, and the sensing element is a magnet assembly 4. Specifically, the magnet assembly 4 includes a stainless steel sleeve and a magnet disposed within the stainless steel sleeve. The magnetic sensor 2 is a non-contact position detecting device, and is internally provided with a magnetic contact, and when the magnetic sensor is close to a ferrous and magnetic target, a magnetic switch in the magnetic sensor is triggered to be closed and separated, so that a position signal is generated and output. The magnet assembly 4 has strong magnetism and is sensed by the magnetic sensor 2 more easily, so that the detection reliability is improved, and the magnet of the magnet assembly 4 is arranged in the stainless steel sleeve, so that the magnet is prevented from being rusted, and the reliability of long-term use is improved.
When the induction rod 6 is installed, the induction rod is arranged in the fixing piece 5 and the wall of the air cylinder 14 in a penetrating mode, the fixing piece 5 is connected to the wall of the air cylinder 14 in a threaded mode, and the first bracket 1 is fixed on the outer wall of the air cylinder 14. When the magnetic sensor 2 is in operation, the piston 13 is moved to the upper and lower limiting positions, the induction rod 6 is pushed to move, the induction rod 6 slides in the fixing piece 5 and simultaneously compresses the spring 8, the fixing rod drives the second bracket 9 and the magnet assembly 4 to move, when the magnet assembly 4 moves to the induction position of the magnetic sensor 2, the magnetic sensor 2 senses the magnetic sensor, and an electric signal is output inside the magnetic sensor 2 and is transmitted to the DCS controller through a cable, so that the detection and output of valve position signals can be completed. When the piston leaves the upper limit and the lower limit, the induction rod 6 is reset through the spring 8.
The utility model solves the technical problem of low reliability of the valve position return signal assembly 15 in the prior art, improves the service life and the moving and detecting reliability of the magnetic target, solves the problems that the carbon steel base material is easy to rust and the magnetic target is easy to rotate beyond the detecting range, and improves the whole using effect, the reliability, the service life and the like.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.
Claims (6)
1. An induction valve position feedback assembly, comprising:
a first bracket;
the sensor is arranged on the first bracket;
the fixing piece is arranged on the first bracket;
the induction rod penetrates through the fixing piece in a sliding sealing manner, and two ends of the induction rod penetrate through the fixing piece;
the second bracket is fixedly connected to the first end of the induction rod and is provided with a limiting part, and the limiting part limits the second bracket to rotate relative to the first bracket;
the induction piece is arranged on the second bracket, the second bracket and the induction piece are driven to move when the induction rod slides, and the moving stroke of the induction piece passes through the induction position of the inductor;
the elastic piece is arranged between the induction rod and the fixing piece, and the second end of the elastic piece is far away from the fixing piece due to the elastic force applied to the induction rod;
the fixed part is used for penetrating through the cylinder wall of the valve, the first support is fixed on the outer wall of the cylinder, the second end of the induction rod is used for penetrating through the cylinder, the piston in the cylinder pushes the induction rod to slide, and the induction rod drives the induction part to move to the induction position to be sensed by the sensor.
2. The inductive valve position feedback assembly of claim 1, wherein the limiting portion is two limiting claws arranged on the second bracket, the two limiting claws respectively abut against two sides of the first bracket, and the two limiting claws are always positioned on two sides of the first bracket in the moving process of the second bracket.
3. An inductive valve position feedback assembly according to claim 1, wherein the inductor is a magnetic sensor and the inductive element is a magnet assembly.
4. An induction valve position feedback assembly according to claim 3, wherein said magnet assembly comprises a stainless steel sleeve and a magnet disposed within said stainless steel sleeve.
5. The induction valve position feedback assembly of claim 1, wherein said fixture is threadably coupled to said cylinder wall.
6. The sensing valve position feedback assembly of claim 1, wherein the resilient member is a spring that is sleeved on the sensing rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120189926 | 2021-01-22 | ||
| CN2021201899265 | 2021-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102260U true CN220102260U (en) | 2023-11-28 |
Family
ID=88880960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120263516.0U Active CN220102260U (en) | 2021-01-22 | 2021-01-30 | Inductive valve position feedback assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102260U (en) |
-
2021
- 2021-01-30 CN CN202120263516.0U patent/CN220102260U/en active Active
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