CN201707170U - Multi-functional pressure detection and measurement switch - Google Patents
Multi-functional pressure detection and measurement switch Download PDFInfo
- Publication number
- CN201707170U CN201707170U CN2010202163960U CN201020216396U CN201707170U CN 201707170 U CN201707170 U CN 201707170U CN 2010202163960 U CN2010202163960 U CN 2010202163960U CN 201020216396 U CN201020216396 U CN 201020216396U CN 201707170 U CN201707170 U CN 201707170U
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- magnetic switch
- pressure
- switch
- cylinder body
- spring
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Abstract
The utility model discloses a multi-functional pressure detection and measurement switch. A carriage of a magnetic switch is arranged at the surface of a cylinder body and is axially arranged along the cylinder body, the magnetic switch is installed on the carriage of the magnetic switch, and a fixing screw of the magnetic switch, which is used for fixing the position of the magnetic switch, is arranged on the carriage of the magnetic switch; the position of a back end cover of the cylinder body is provided with a positive pressure detection input port, the position of a front end cover is provided with a vacuum pressure detection port, a spring is arranged in the cylinder body, and one end of the spring is connected with a piston; a magnetic ring is arranged on the piston; a pressure indication scale gauge is arranged at one side of the carriage of the magnetic switch and is matched with the movement position of the magnetic switch; a stop screw with scales is arranged at the end part of the cylinder body and is connected with the other end of the spring; and a sealing device is arranged between the stop screw and the cylinder body. The utility model has vacuum pressure measurement, positive pressure measurement and pressure difference measurement; and the utility model has the functions of a vacuum pressure switch, a positive pressure switch, a pressure difference switch and the like and can meet various requirements.
Description
Technical field
The utility model relates to a kind of measuring switch, specifically a kind of multifunctional pressure detecting and measuring switch.
Background technology
Common pressure switch is a kind of self-actuated controller that receives pressure signal and move.It possesses the pressure set-up function, and when device systems pressure met or exceeded pressure controller capping value, controller is automatic cut-off loop just, equipment is stopped play automatic protective effect.During limit value, controller is automatic processing circuit again under system pressure is lower than set pressure, makes equipment recover operate as normal.But common pressure switch does not possess the function that adapts to multiple fluid, and positive and negative pressure detects and measurement function, pressure differential detection and measurement function etc.
Summary of the invention
In order to overcome the problem that pressure switch exists in the prior art, the purpose of this utility model provides a kind of multifunctional pressure detecting and measuring switch, and this switch has vacuum pressure measurement, normal pressure measurement, differential pressure measurement; Functions such as vacuum pressure switch, normal pressure switch, pressure difference switch have satisfied various requirement.
The purpose of this utility model is achieved through the following technical solutions:
A kind of multifunctional pressure detecting and measuring switch, it is characterized in that: this switch comprises pressure indicating graduation table, magnetic switch balladeur train, cylinder body, spring, stop screw, magnetic switch and magnet ring, described magnetic switch balladeur train is arranged on cylinder surface and axial arranged along cylinder body, magnetic switch is installed on the magnetic switch balladeur train, is provided with the magnetic switch gib screw that is used for fixing the magnetic switch position on the magnetic switch balladeur train; Be provided with the positive-pressure detection input port in the rear end cap place of cylinder body is provided with, the front end end cover place is provided with the vacuum-pressure detection mouth, is provided with spring in cylinder body, is connected with piston at an end of spring; The magnet ring suitable with magnetic switch is arranged on the piston; Pressure indicating graduation table is arranged on magnetic switch balladeur train one side and suitable with the shift position of magnetic switch; Stop screw is arranged on the end of cylinder body and is connected with the other end of spring; On stop screw, be provided with and the corresponding scale of pressure indicating graduation epiphase; Between stop screw and cylinder body, be provided with packoff.
The utility model is provided with the magnetic switch LED light on magnetic switch.Described packoff is O-ring seal and sealing nut.
In the utility model, the rightmost scale mark of pressure indicating graduation table is the standard atmospheric pressure value, and the value size is set at 0, and spring is a raw footage, not distortion.Scale value becomes big left, scale value two row arranged side by side, a behavior positive pressure value, a behavior negative pressure value.
The stop screw effect: when using as pressure switch, preventing that piston from moving to left continues to be moved to the left after reaching setting value, its high scale and pressure indicating graduation epiphase with.O-ring seal and sealing nut seal.
The calculating of pressure scale x:
P---the working pressure of surveying.
The elasticity coefficient of k---spring.
The value of x---scale mark to be determined.
X * A---scale mark to be determined is to the distance of the rightmost scale mark " 0 " of pressure indicating graduation table.
The scale-up factor of the value of A---scale mark and spring elongation is decided according to calculating and testing.
The utility model adopts cylinder body to add the structure of magnetic switch, has path that is communicated with the pressure fluid path and the inner space that is communicated with this path; Have simple in structure, complete function, cost performance advantages of higher, be suitable as very much the usefulness of the input sample of controllers such as PLC, single-chip microcomputer, ARM, DSP.
The spring rate difference is applicable to hydraulic pressure or pneumatic system, and the size that can detect normal pressure can produce switching signal again; The size that can detect vacuum pressure can produce switching signal again; Simultaneously, the function that possesses pressure differential detection again.Because its output is got in touch by magnetic switch with signal piping pressure and isolated, long service life has the reliability of height and stable repeatability.
Compared with prior art, the utlity model has vacuum pressure measurement, normal pressure measurement, differential pressure measurement; Functions such as vacuum pressure switch, normal pressure switch, pressure difference switch have satisfied various requirement.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a schematic top plan view of the present utility model;
Fig. 3 is that synoptic diagram is looked on a left side of the present utility model.
Embodiment
A kind of multifunctional pressure detecting described in the utility model and measuring switch are seen Fig. 1, Fig. 2 and Fig. 3, and this switch comprises pressure indicating graduation table 1, magnetic switch balladeur train 2, cylinder body 12, spring 7, stop screw 8, magnetic switch 10 and magnet ring 14.Magnetic switch balladeur train 2 is arranged on cylinder body 12 surfaces and axial arranged along cylinder body 12, and magnetic switch 10 is installed on the magnetic switch balladeur train 2, is provided with the magnetic switch gib screw 4 that is used for fixing magnetic switch 10 positions on magnetic switch balladeur train 2.Rear end cap 15 places at cylinder body 12 are provided with positive-pressure detection input port 5, and front end end cover 9 places are provided with vacuum-pressure detection mouth 6.In cylinder body 12, be provided with spring 7, be connected with piston 13 at an end of spring 7; The magnet ring 14 suitable with magnetic switch 10 is arranged on the piston 13.Pressure indicating graduation table 1 is arranged on magnetic switch balladeur train 2 one sides and suitable with the shift position of magnetic switch 10.On magnetic switch 10, be provided with magnetic switch LED light 11.Stop screw 8 is arranged on the end of cylinder body 12 and is connected with the other end of spring 7.On stop screw 8, be provided with and the corresponding scale of pressure indicating graduation table 1; Be provided with packoff 3 between stop screw 8 and cylinder body 12, packoff 3 is O-ring seal and sealing nut.
The concrete course of work of the present utility model is as follows:
1) force value detects
1. vacuum pressure is measured
The course of work is as follows.Vacuum-pressure detection mouth 6 connects the pressure of required measurement.Pressure switch signal wire 16 is connected required DC5～24V power supply.Stop screw 8 is motionless in the left end original position.Tighten O-ring seal and sealing nut, to guarantee sealing.
Input pressure when vacuum-pressure detection mouth 6 places is not a vacuum, and during for standard atmospheric pressure, piston in position.At this moment, magnetic switch 10 is moved to right, when making arrow on the magnetic switch 10 point to the rightmost scale 0 of pressure indicating graduation table 1, promptly 14 pairs of magnetic switch 10 and magnet rings are seasonable, and LED light 11 is bright.So, this means that certain vacuum pressure of surveying is 0.
When vacuum-pressure detection mouth 6 was connected vacuum, piston 13 left sides produced negative pressure, and spring 7 by compression, and is static after piston 13 moves to left.At this moment, magnetic switch 10 is moved to left, when LED light 11 is bright, stop.At this moment, in fact, magnetic switch 10 and magnet ring 14 are corresponding, and the scale reading that the arrow on the magnetic switch 10 points on the pressure indicating graduation table 1 is the vacuum pressure value that measures.
2. normal pressure is measured
Connect positive-pressure detection input port 5.The same vacuum-pressure detection of measuring principle and method.
3. differential pressure measurement
The termination positive-pressure detection input port 5 that pressure is big, the termination vacuum-pressure detection mouth 6 that pressure is little.The same vacuum-pressure detection of measuring principle and method.
2) as pressure switch
1. vacuum pressure switch
Using method and principle are as follows.Vacuum-pressure detection mouth 6 connects vacuum pressure.Pressure switch signal wire 16 is connected required power supply.
In advance magnetic switch 10 is moved to left, point to scale reading (pointing on the required threshold values) on the pressure indicating graduation 1 up to the arrow on the magnetic switch 10.Tighten magnetic switch gib screw 4 then, make the stationkeeping of magnetic switch 10.Rotation set screw 8 makes it to move right, and the scale that makes it is identical with scale reading on the pressure indicating graduation table 1, and its effect is when pressure reaches arrow designated value on the magnetic switch 10, prevents that piston 13 from continuing to move to left.Because, the disconnection output signal disappearance that piston 13 continues to move to left and can make magnetic switch 10.Tighten O-ring seal and sealing nut, to guarantee the fixing of sealing and stop screw 8.
When vacuum tightness increased, piston 13 moved to left, and seasonable when 14 pairs of magnetic switch 10 and magnet rings, LED light 11 is bright, and pressure switch I/O3 export cut-off signal, and at this moment stop screw 8 props up piston 13, and it continues to move to left when preventing the negative pressure increase.Pressure switch I/O3 exports useful signal always, up to vacuum tightness less than threshold values.
2. normal pressure switch
Connect positive-pressure detection input port 5.The same vacuum-pressure detection of principle and method.
3. pressure difference switch
The termination positive-pressure detection input port 5 that pressure is big, the termination vacuum-pressure detection mouth 6 that pressure is little.The same vacuum-pressure detection of principle and method.
The detection of other fluid is identical with the principle of measurement and said method.
The utility model is applicable to hydraulic pressure or pneumatic system, and the size that can detect normal pressure can produce switching signal again; The size that can detect vacuum pressure can produce switching signal again; Simultaneously, the function that possesses pressure differential detection again.Because its output is got in touch by magnetic switch with signal piping pressure and isolated, long service life has the reliability of height and stable repeatability.
The utlity model has simple in structure, complete function, cost performance advantages of higher, be suitable as very much the usefulness of the input sample of controllers such as PLC, single-chip microcomputer, ARM, DSP.
Claims (3)
1. multifunctional pressure detecting and measuring switch, it is characterized in that: this switch comprises pressure indicating graduation table (1), magnetic switch balladeur train (2), cylinder body (12), spring (7), stop screw (8), magnetic switch (10) and magnet ring (14), described magnetic switch balladeur train (2) is arranged on cylinder body (12) surface and axial arranged along cylinder body (12), magnetic switch (10) is installed on the magnetic switch balladeur train (2), is provided with the magnetic switch gib screw (4) that is used for fixing magnetic switch (10) position on magnetic switch balladeur train (2); Be provided with positive-pressure detection input port (5) in the rear end cap (15) of cylinder body (12) is located to be provided with, front end end cover (9) locates to be provided with vacuum-pressure detection mouth (6), is provided with spring (7) in cylinder body (12), is connected with piston (13) at an end of spring (7); The magnet ring (14) suitable with magnetic switch (10) is arranged on the piston (13); Pressure indicating graduation table (1) is arranged on magnetic switch balladeur train (2) one sides and suitable with the shift position of magnetic switch (10); Stop screw (8) is arranged on the end of cylinder body (12) and is connected with the other end of spring (7); On stop screw (8), be provided with and the corresponding scale of pressure indicating graduation table (1); Between stop screw (8) and cylinder body (12), be provided with packoff (3).
2. want 1 described multifunctional pressure detecting and measuring switch according to right, it is characterized in that: on magnetic switch (10), be provided with magnetic switch LED light (11).
3. want 1 described multifunctional pressure detecting and measuring switch according to right, it is characterized in that: described packoff (3) is O-ring seal and sealing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202163960U CN201707170U (en) | 2010-06-03 | 2010-06-03 | Multi-functional pressure detection and measurement switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202163960U CN201707170U (en) | 2010-06-03 | 2010-06-03 | Multi-functional pressure detection and measurement switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707170U true CN201707170U (en) | 2011-01-12 |
Family
ID=43444332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202163960U Expired - Lifetime CN201707170U (en) | 2010-06-03 | 2010-06-03 | Multi-functional pressure detection and measurement switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707170U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881680A (en) * | 2010-06-03 | 2010-11-10 | 南京工业职业技术学院 | Multifunctional pressure detecting and measuring switch |
| CN104436507A (en) * | 2014-10-24 | 2015-03-25 | 滨州学院 | Mechanical type fire hydrant pressure over-limit detecting device |
| CN105424270A (en) * | 2015-12-03 | 2016-03-23 | 山西汾西重工有限责任公司 | Underwater detector overpressure alarm device |
| CN106151661A (en) * | 2016-08-20 | 2016-11-23 | 成都云士达科技有限公司 | A kind of valve switch of scalable pressure |
-
2010
- 2010-06-03 CN CN2010202163960U patent/CN201707170U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881680A (en) * | 2010-06-03 | 2010-11-10 | 南京工业职业技术学院 | Multifunctional pressure detecting and measuring switch |
| CN104436507A (en) * | 2014-10-24 | 2015-03-25 | 滨州学院 | Mechanical type fire hydrant pressure over-limit detecting device |
| CN104436507B (en) * | 2014-10-24 | 2017-04-05 | 滨州学院 | A kind of mechanical type fire hydrant pressure limit detection means |
| CN105424270A (en) * | 2015-12-03 | 2016-03-23 | 山西汾西重工有限责任公司 | Underwater detector overpressure alarm device |
| CN106151661A (en) * | 2016-08-20 | 2016-11-23 | 成都云士达科技有限公司 | A kind of valve switch of scalable pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110112 Effective date of abandoning: 20111207 |