CN206311178U - A kind of Non-Touching Type Liquid Level Switch - Google Patents
A kind of Non-Touching Type Liquid Level Switch Download PDFInfo
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- CN206311178U CN206311178U CN201621053651.8U CN201621053651U CN206311178U CN 206311178 U CN206311178 U CN 206311178U CN 201621053651 U CN201621053651 U CN 201621053651U CN 206311178 U CN206311178 U CN 206311178U
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- liquid level
- level switch
- type liquid
- measurement plate
- support
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Abstract
The utility model provides a kind of Non-Touching Type Liquid Level Switch, including：Measurement plate, ball float, support, inductance sensor, rotary shaft and signal handling equipment, the inside of testing container is fixed in one end of the support, the other end top of support is installed with inductance sensor, one end of the rotary shaft can be rotatably mounted to the other end bottom of the support, the other end of the rotary shaft is fixed in the measurement plate, the lower section of the measurement plate is fixedly connected with the ball float, and the inductance sensor is electrically connected with the signal handling equipment.The characteristics of the utility model has reasonable in design, simple structure, certainty of measurement high, low cost, long working life, the jam faults of rotating shaft can be eliminated using the self gravitation of ball float, it is easy to maintenance, cost of manufacture is cheap, is particularly well-suited to containing the liquid-level switch control under severe operating environment, the place such as solid impurity, Korrosionsmedium, easy structure.
Description
Technical field
The utility model belongs to measuring instrumentss field, more particularly to a kind of to be opened for measuring the contact-free level of liquid level
Close.
Background technology
Liquid-level switch is used to measure liquid level, when liquid level reaches a certain control position, liquid-level switch then output contact signal.
At present, it is usually used main to have floating-ball level switch, capacitor hydraulic switch, infrared ray liquid-level switch etc. several
Class.These liquid-level switches are risen or dropped with liquid level using magnetic float, make the dry spring of setting position in sensor detection pipe
Pipe or microswitch action, send contact and open (pass) conversion signal.
However, there is problems with these liquid level switch structures：
1st, the mechanical contact of tongue tube or microswitch big, oxidizable, service life affected by environment is short；
2nd, the mechanical twisting structure of magnetic float, perishable and fouling, cause float bite to make measurement failure, measure failure
Rate is high；
3rd, condenser type, infrared ray liquid level switch structure are complicated, the easy contaminated influence certainty of measurement of probe, maintenance difficult.
In consideration of it, to overcome disadvantages described above, inventor of the present utility model designs a kind of Non-Touching Type Liquid Level Switch.
Utility model content
The purpose of this utility model is to provide a kind of Non-Touching Type Liquid Level Switch, and it is applied to containing solid impurity, corrosivity
Liquid-level switch control under severe operating environment, the place such as medium, easy structure.
It is that, up to above-mentioned purpose, the utility model provides a kind of Non-Touching Type Liquid Level Switch, and it includes：Measurement plate, ball float, branch
The inside of testing container, support are fixed in frame, inductance sensor, rotary shaft and signal handling equipment, one end of the support
Other end top be installed with inductance sensor, one end of the rotary shaft can be rotatably mounted to the another of the support
One end bottom, the other end of the rotary shaft is fixed in the measurement plate, and the lower section of the measurement plate is fixed with the ball float
Connection, the inductance sensor is electrically connected with the signal handling equipment.
Described Non-Touching Type Liquid Level Switch, wherein, spacing between the inductance sensor and measurement plate for 0~
15mm。
Described Non-Touching Type Liquid Level Switch, wherein, the diameter of the width more than inductance sensor of the measurement plate.
Described Non-Touching Type Liquid Level Switch, wherein, the extended line of the measurement plate passes through the center of gravity of the ball float.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate is connected with the ball float by way of welding
Connect.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate top higher than inductance sensor top at least
40mm。
Described Non-Touching Type Liquid Level Switch, wherein, the inductance sensor is current vortex sensor.
Described Non-Touching Type Liquid Level Switch, wherein, the cross section of the support is T-shaped, and with horizontal segment and vertically
Section, wherein horizontal segment is fixedly connected on inside the testing container, and the vertical section is vertical with horizontal segment to be fixedly connected, the branch
The top of the vertical section of frame offers the mounting hole for installing inductance sensor, and the vertical pars infrasegmentalis of the support offers use
In the perforate for installing rotary shaft.
Described Non-Touching Type Liquid Level Switch, wherein, the mounting hole site is at vertical section top 1/4.
Described Non-Touching Type Liquid Level Switch, wherein, the inductance sensor is fixed in the mounting hole using nut.
Described Non-Touching Type Liquid Level Switch, wherein, the ball float is preferably metal ball float.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate top higher than inductance sensor top at least
40mm。
The beneficial effects of the utility model are：With reasonable in design, simple structure, certainty of measurement high, low cost, work longevity
The characteristics of ordering long, the jam faults of rotating shaft can be eliminated using the self gravitation of ball float, and easy to maintenance, cost of manufacture is cheap, especially
Suitable for containing the liquid-level switch control under severe operating environment, the place such as solid impurity, Korrosionsmedium, easy structure.
Brief description of the drawings
The utility model will be hereinafter described in more detail based on embodiment and refer to the attached drawing.Wherein：
Fig. 1 is integrally-built front view of the present utility model；
Fig. 2 is integrally-built side view of the present utility model.
Description of reference numerals：1- measurement plates；2- ball floats；3- supports；4- inductance sensors；5- rotary shafts；6- signal transactings
Equipment.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, it is respectively integrally-built front view of the present utility model and side view.This practicality is new
Type provides a kind of Non-Touching Type Liquid Level Switch, and it mainly includes：Measurement plate 1, ball float 2, support 3, inductance sensor 4, rotary shaft 5
And signal handling equipment 6.
The liquid level that the support 3 is controlled as needed, is fixed on inside testing container.The cross section of the support 3
It is substantially t-shaped, and with horizontal segment 31 and vertical section 32, wherein horizontal segment 31 is fixedly connected on inside the testing container, institute
State that vertical section 32 is then vertical with horizontal segment 31 to be fixedly connected.
Preferably, to be about 150mm, width about 70mm, the size of vertical section 32 is to be about to the size of the horizontal segment 31
200mm, width about 70mm, and the vertical welding of the horizontal segment 31 is in the middle part of the vertical section 32.Preferably, the support 3
The firm on-deformable material such as the 316L stainless steel plates using 4mm thickness makes, in the hope of ensureing anticorrosion effect.
The top of the vertical section 32 of the support 3 offers the mounting hole 33 for installing inductance sensor 4, it is preferable that
The mounting hole 33 is located at the top of the vertical section 32 1/4, and the aperture of the mounting hole 33 is preferablyIt is preferred that
Ground, the inductance sensor 4 can be current vortex sensor.The diameter of the inductance sensor 4 is aboutAnd inductance is passed
Sensor 4 can be fixed in the mounting hole 33 using nut (such as back tightening nut).
The measurement plate 1 is fixedly connected on the top of the ball float 2, and the measurement plate 1 extended line through described
The center of gravity of ball float 2.Preferably, the measurement plate 1 is attached with the ball float 2 by way of welding.Preferably, it is described floating
Ball 2 is metal ball float, and its diameter is aboutPreferably, the size of the measurement plate 1 is to be about 200mm, width about
40mm.Ball float 2 needs to be made of corrosion-resistant material.
The bottom of vertical section 32 of the support 3 offers the perforate 34 for installing rotary shaft 5, and the rotary shaft 5 can
Neatly rotated in the perforate 34.The position of wherein described perforate 34 should be according to inductance sensor 4 and the top of measurement plate 1
Difference in height determines that the top of measurement plate 1 should be higher than that the top at least 40mm of inductance sensor 4.Preferably, the aperture of the perforate 34
PreferablyAdditionally, the spacing between the inductance sensor 4 and measurement plate 1 is preferably from about 0~15mm, such as 5mm,
In the hope of ensureing certainty of measurement.The rotary shaft 5 is fixedly connected with the measurement plate 1, preferably by being welded to connect, and preferably
Ground, the spacing between the rotary shaft 5 and the bottom of the measurement plate 1 is preferably from about 20mm.Preferably, the measurement plate 1
Diameter of the width slightly larger than inductance sensor 4.
The inductance sensor 4 is electrically connected (such as cable connection) with the signal handling equipment 6.Inductance sensor 4 is leaned on
Voltage can change during close or remote from measurement plate 1, electric signal output switch amount contact signal after treatment, with noncontact side
Formula measures liquid level, can accurately reflect liquid level situation of change.Preferably, the inductance sensor 4 can select NCN4-12GM35-NO
Type 12mm sensors；The signal handling equipment 6 can select KFD2-SR2-EX1.WLB type guard gratings.The specific mode of connection
For：14 (+) of guard grating, 15 (-) terminals connect 24VDC power supplys；The output of inductance sensor 4 connects 1 (+) of guard grating, 3 (-) ends
Son；Contact signal output has two groups：Opened point 7/8 and normally closed point 7/9.
Operation principle of the present utility model is：
When an alternating magnetic field can be produced after inductance type transducer energization, when metal object close to this magnetic field, and reach
During distance of reaction, current vortex is produced in metal object, its alternating magnetic field is with outer magnetic field direction conversely, inductance type sensing can be changed
The effective impedance of device, the change of its voltage is converted into switch contact signal by signal handling equipment, so as to reach non-cpntact measurement
The purpose of liquid level.
Not up to the working condition of alarm liquid level when, measurement plate 1 near inductance sensor 4, the output voltage of inductance sensor 4
Signal 7.7V or so.When liquid level slowly rises, ball float 2 is gradually flooded, due to buoyancy increase, ball float 2 will enclose together with measurement plate 1
Rotated around rotary shaft 5.When measurement plate 1 is away from inductance sensor 4, the output voltage signal of inductance sensor 4 by 7.7V saltus steps to 3V,
The contact of the output of signal handling equipment 6 is then by opened point saltus step to normally closed, then matches corresponding display instrument or by contact signal
Introducing DCS can just realize the switching value alarm of liquid level or control.
In sum, the beneficial effects of the utility model are：This device is compared with setting with existing industrial level switch
Meter rationally, simple structure, certainty of measurement high, low cost, long working life the characteristics of, using the self gravitation of ball float can eliminate turn
The jam faults of axle, easy to maintenance, cost of manufacture is cheap, is particularly well-suited to be disliked containing solid impurity, Korrosionsmedium, easy structure etc.
Liquid-level switch control under bad operating environment, place.
Although being described to the utility model by reference to preferred embodiment, model of the present utility model is not being departed from
In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing
The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of Non-Touching Type Liquid Level Switch, it is characterised in that including：Measurement plate, ball float, support, inductance sensor, rotary shaft
And signal handling equipment, the inside of testing container, the other end top fixed installation of support are fixed in one end of the support
The one end for having inductance sensor, the rotary shaft can be rotatably mounted to the other end bottom of the support, the rotary shaft
The other end be fixed in the measurement plate, the lower section of the measurement plate is fixedly connected with the ball float, the inductance sensor
It is electrically connected with the signal handling equipment.
2. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the inductance sensor and measurement plate it
Between spacing be 0~15mm.
3. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the width of the measurement plate is more than inductance
The diameter of sensor.
4. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the extended line of the measurement plate passes through institute
State the center of gravity of ball float.
5. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the measurement plate passes through with the ball float
The mode of welding is attached.
6. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the measurement plate top passes higher than inductance
The top of sensor at least 40mm.
7. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the inductance sensor is that current vortex is passed
Sensor.
8. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the cross section of the support is T-shaped, and
With horizontal segment and vertical section, wherein horizontal segment is fixedly connected on inside the testing container, and the vertical section is hung down with horizontal segment
Directly be fixedly connected, the top of the vertical section of the support offers the mounting hole for install sensor, the support it is vertical
Pars infrasegmentalis offers the perforate for installing rotary shaft.
9. Non-Touching Type Liquid Level Switch according to claim 8, it is characterised in that the mounting hole site is in the vertical section
At top 1/4, and the inductance sensor is fixed in the mounting hole using nut.
10. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the ball float is metal ball float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621053651.8U CN206311178U (en) | 2016-09-13 | 2016-09-13 | A kind of Non-Touching Type Liquid Level Switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621053651.8U CN206311178U (en) | 2016-09-13 | 2016-09-13 | A kind of Non-Touching Type Liquid Level Switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311178U true CN206311178U (en) | 2017-07-07 |
Family
ID=59243259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621053651.8U Active CN206311178U (en) | 2016-09-13 | 2016-09-13 | A kind of Non-Touching Type Liquid Level Switch |
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| CN (1) | CN206311178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443496A (en) * | 2018-12-29 | 2019-03-08 | 海南经纬乳胶丝有限责任公司 | A kind of highly sensitive liquid level alarm device |
-
2016
- 2016-09-13 CN CN201621053651.8U patent/CN206311178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443496A (en) * | 2018-12-29 | 2019-03-08 | 海南经纬乳胶丝有限责任公司 | A kind of highly sensitive liquid level alarm device |
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