CN206038102U - Adjustable length level sensor - Google Patents
Adjustable length level sensor Download PDFInfo
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- CN206038102U CN206038102U CN201620903765.0U CN201620903765U CN206038102U CN 206038102 U CN206038102 U CN 206038102U CN 201620903765 U CN201620903765 U CN 201620903765U CN 206038102 U CN206038102 U CN 206038102U
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- metal tube
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- pole pipe
- length
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Abstract
The utility model discloses an adjustable length level sensor utilizes the utility model discloses the changeable installation environment of gauge length can be adapted to, the flexibility is improved, the utility model discloses a following technical scheme realizes: a basic level sensor's liquid level sensing capacitance tube is formed to first tubular metal resonator sub -assembly (1), second tubular metal resonator sub -assembly (3) and clamp (2), and liquid level sensing capacitance tube piggy -back connector, the third metal nest of tubes close (5) and realize length adjustment according to the length increase in demand, and the increase the quantity that the third metal nest of tubes closed piece and clamp is 1: 1, make all on the free end of every inner pole pipe, outer pole pipe body detain and the bonding jumper is connected hangs mouthful (10) through hanging, every inter block, outer pole pipe are connected fixedly through pivot (9), and pivot both ends hot melt is stereotyped, apply a drive signal to the utmost point of electric capacity through terminal box (4) of installing on second tubular metal resonator sub -assembly body for the sensor, follow electric capacity another extremely export with liquid level signal one -tenth linear relation's capacitor signal.
Description
Technical field
The utility model is related to a kind of capacitive liquid level sensor, by combining different parts.
Background technology
Classical liquid level sensor (static pressure liquid level meter/fluid level transmitter/liquid level sensor/level sensor) is that pressure is passed
Sensor.The form that the high-degree of conversion of liquid level is electric signal can be exported by it.Liquid level sensor should on aircraft, ship etc.
With extensive, it is used for oil level, level measuring, delivery stroke, reasonable arrangement supply are estimated to equipment particularly significant meaning.Magnetic is floated
Minor liquid level sensor includes float, magnet, support, the hall element sensor of linear convergent rate, amplifying circuit, and Hall element is passed
Sensor is arranged on the top of support, and magnet is arranged on the lower section of hall element sensor, and magnet is connected with float；Hall element is passed
The output end of sensor is connected with the input of display instrument by amplifying circuit.Float ball type level transducer is by magnetic ball float, survey
Amount conduit, signal element, electronic unit, terminal box 3 and installed part composition, the proportion of general magnetic ball float are less than 0.5, can float in
Move up and down on liquid level and along measurement conduit, built with measuring cell, it can be under outer magnetic action by tested liquid level for conduit
Signal is converted into being proportional to the resistance signal of liquid level change, and electronic unit is converted into 4～20mA or other standard signals are defeated
Go out.Static-pressure type liquid level transmitter is worked using the measuring principle of hydrostatic pressure, and it typically will from Silicon pressure load cell
The pressure conversion for measuring into electric signal, then amplified circuit amplify and compensation circuit compensation, finally with 4～20mA or 0～
10mA current systems are exported.Float-type liquid level transmitter is that magnetic ball float is changed to floating drum, and liquid level sensor is according to A Ji meter
The design of moral law of buoyancy.Float-type liquid level transmitter is measuring the liquid of liquid using small metal film strain sensing technology
Position, boundary position or density, it operationally can carry out conventional setting operation by live button.Capacitance type liquid level is sensed
The two poles of the earth of device metal tubular into electric capacity, the media variations between metal tube cause change in dielectric constant, so as to affect the two poles of the earth metal
Capacitance between pipe.Capacitance level transducer general at present, is to be obtained by the physical dimension customization of fluid box, is sensed
Device can only be installed in specific position, and its design cycle length, development cost are high, replaceability difference and not easy care.It is single big
The liquid level sensor model used on type vehicle equipment is various, is primarily due to sensor length and is limited by installation site, different
The sensor length of position is different.Therefore traditional sensor is that the sensing element of customization is according to customer requirement customization
The metal tube of two, design cycle are long, and development cost is high, not easy-maintaining, and can not exchange between different model.
Utility model content
The weak point that the utility model is present for above-mentioned prior art, proposes a kind of simple structure, and interchangeability is flexible,
Stability Analysis of Structures reliability, the liquid level sensor with adjustable-length, can while the test request of different liquid level depth is met,
Also improve the maintainability of product.
The utility model solves the scheme of prior art problem：A kind of adjustable-length liquid level sensor, including by interior pole
Pipe 7, the first metal tube sub-assembly 1 at the composition electric capacity of outer pole pipe 8 the two poles of the earth and the second metal tube sub-assembly 3, it is characterised in that：The
One metal tube sub-assembly 1, the second metal tube sub-assembly 3 and clip 2 constitute the level sensing electric capacity of a basic liquid level sensor
Pipe, the segmentation connection of level sensing capacitance tube, the 3rd metal tube sub-assembly 5 realize length adjustment, the 3rd gold medal by length requirement increase
Category pipe sub-assembly 5 and clip 2 are accelerated as 1:1, each metal tube sub-assembly is equipped with clip 2, pole pipe 7 in each,
All it is formed with the free end of 8 body of outer pole pipe by buckling the mouth hanging 10 with bonding jumper connection, per group of inside and outside pole pipe passes through pivot pin
9 are connected, the hot melt sizing of pivot pin two ends, and after adjusting length, liquid level sensor body two ends are encapsulated by end cap 6.After completing assembling, pass
All outer pole pipes and interior pole pipe difference electrical communication of sensor, forms the two poles of the earth of electric capacity, by combining installed in the second metal tube
On 3 body of part, terminal box 4 applies a pumping signal to a pole of electric capacity to sensor, from another pole output and the liquid level of electric capacity
The linear capacitance signal of signal, completes level gauging.
The utility model is had the advantages that compared to prior art.
Simple structure.The utility model constitutes sensor construction using segmentation structure, is mainly completed by four kinds of sub-assemblies,
Simple structure, between metal tube sub-assembly, clip is used to fix and be reliably connected.Sensor length can be adjusted, to measure not
With liquid level depth, design cost and maintenance cost can be substantially reduced.
Interchangeability is flexible, Stability Analysis of Structures reliability.Arbitrarily can be increased using sensor metal tube sub-assembly quantity, liquid level is passed
Sensor adjustable length, can be good in the test request for meeting different liquid level depth, interchangeability, flexibly and easily.Interior pole pipe, outer pole
Pipe constitutes the two poles of the earth of electric capacity, and the mouth hanging 10 of inside and outside pole pipe is connected with the bonding jumper on clip 2；Relative position between inside and outside pole pipe
Put and fixed by two pivot pins 9, body end, can slip-off preventing by sizing is heated.Stability Analysis of Structures reliability.By the first metal tube group
Component 1, the second metal tube sub-assembly 3 and clip 2 constitute the level sensing capacitance tube of a basic liquid level sensor, actually used
In can increase the quantity of the 3rd metal tube sub-assembly 5 and clip 2 to adjust the length of sensor, reach and change measurement height
Purpose；The sub-assembly that damage can be replaced simultaneously is keeped in repair.
Description of the drawings
Fig. 1 is the level sensing capacitance tube organigram of the utility model adjustable-length liquid level basic structure.
Fig. 2 is 1 structure chart of the first metal tube sub-assembly with end cap 6.
Fig. 3 is 2 structure chart of clip.
Fig. 4 is the top view of level sensing capacitance tube.
In figure：1 first metal tube sub-assembly, 2 clips, 3 second metal tube sub-assemblies, 4 terminal boxes, 5 the 3rd metal tube groups
Component, 6 end caps, pole pipe in 7,8 outer pole pipes, 9 pivot pins, 10 mouth hangings, 11. outer pole pipe bonding jumpers, pole pipe bonding jumper in 12,13 linings
Plate.
The utility model is further illustrated with reference to the accompanying drawings and examples, but therefore the utility model is not limited in
Among described scope of embodiments.
Specific embodiment
Refering to Fig. 1.A kind of adjustable-length liquid level sensor, including the of electric capacity the two poles of the earth are made up of interior pole pipe 7, outer pole pipe 8
One metal tube sub-assembly 1 and the second metal tube sub-assembly 3.The cylindrical capacitance sensor is made up of two aluminium-alloy pipes.Sensing
The mounting means of device is built-in type, clip 2 is fixed on the floor in liquid storaging device using screw.First metal tube group
Component 1, the second metal tube sub-assembly 3 and clip 2 constitute the level sensing capacitance tube of a basic liquid level sensor, level sensing
Capacitance tube segmentation connection, the 3rd metal tube sub-assembly 5 realize length adjustment, the 3rd metal tube sub-assembly 5 by length requirement increase
With accelerating as 1 for clip 2:1, each metal tube sub-assembly is equipped with clip 2, pole pipe 7,8 body of outer pole pipe in each
Free end on be all formed with by buckling the mouth hanging 10 with bonding jumper connection, per group of inside and outside pole pipe is connected by pivot pin 9,
The hot melt sizing of pivot pin two ends, after adjusting length, liquid level sensor body two ends are encapsulated by end cap 6.After completing assembling, the whole of sensor
Outer pole pipe and interior pole pipe difference electrical communication, form the two poles of the earth of electric capacity, by connecing on 3 body of the second metal tube sub-assembly
Line box 4 applies a pumping signal to a pole of electric capacity to sensor, exports linear with liquid level signal from another pole of electric capacity
The capacitance signal of relation, completes level gauging.
The assemble flow of sensor is first to assemble sub-assembly, then enters line sensor general assembly.
(1) refering to Fig. 2.The first metal tube sub-assembly 1 with end cap 6 is assembled, the interior pole pipe 7 of the sub-assembly, outer pole pipe 8
There is side to buckle, the pivot pin installing hole of inside and outside pole pipe is alignd, keep mouth hanging 10 in the same side, 2 pivot pins 9 are filled respectively
Enter installing hole, 9 both sides of pivot pin are exposed outer pole pipe part holt melt sizing, end cap 6 is installed in outer pole pipe.
(2) refering to Fig. 3.Clip 2 is assembled, at four openings that first 4 outer pole pipe bonding jumpers 11 are placed on clip 2,
Liner plate 13 is separately mounted to clip both sides by outer of the salient point of bonding jumper towards clip, and interior pole pipe bonding jumper 12 is being installed
At the opening of liner plate, the salient point of bonding jumper is towards the clip center of circle.
(3) refering to Fig. 4.The pivot pin installing hole of interior pole pipe 7 and outer pole pipe 8 is alignd, two pivot pins 9 are respectively charged into into installation
The sizing of outer pole pipe part holt melt is exposed in hole, 9 both sides of pivot pin, completes the second metal tube sub-assembly 3 and the 3rd metal tube sub-assembly 5
Assembling.
(4) sensor general assembly.As the length of sensor can be adjusted, by taking the typical structure shown in accompanying drawing 1 as an example,
Two metal tube sub-assemblies, 3 both sides load onto a clip 2 respectively, then are respectively mounted the 3rd gold medal in the opposite side of two clips 2
Category pipe sub-assembly 5 and the first metal tube sub-assembly 1, loads onto a clip 2 in the opposite side of the 3rd metal tube sub-assembly 5, then
The opposite side of clip 2 installs a first metal tube sub-assembly 1, installs upper end cover two 1 terminations of the first metal tube sub-assembly
6, so as to form the general assembly of adjustable-length liquid level sensor.In actual use, the 3rd metal tube can be adjusted according to actual height
The quantity of sub-assembly 5 and clip 2, to meet the different requirements that fathom.The increase number of the 3rd metal tube sub-assembly and clip
Measure as 1:1.After completing assembling, all outer pole pipe 8 and the difference electrical communication of interior pole pipe 7 of sensor form the two poles of the earth of electric capacity, lead to
Cross terminal box 4 and apply a pumping signal to a pole of electric capacity to sensor, you can from the output of another pole with liquid level signal into line
The capacitance signal of sexual intercourse, completes level gauging.When the liquid level between metal tube changes, Jie between metal tube
Electric constant and the linear change of liquid level, therefore the capacitance between metal tube the two poles of the earth is linear with liquid level.
Claims (7)
1. a kind of adjustable-length liquid level sensor, including by interior pole pipe（7）, outer pole pipe（8）First metal at composition electric capacity the two poles of the earth
Pipe sub-assembly（1）With the second metal tube sub-assembly（3）, it is characterised in that：First metal tube sub-assembly（1）, the second metal tube group
Component（3）And clip（2）The level sensing capacitance tube of one liquid level sensor of composition, the segmentation connection of level sensing capacitance tube, the
Three metal tube sub-assemblies（5）Length adjustment, the 3rd metal tube sub-assembly are realized by length requirement increase（5）And clip（2）Increasing
Addend amount is 1:1, per group of inside and outside pole pipe passes through pivot pin（9）It is connected, level sensing after length is adjusted in the hot melt sizing of pivot pin two ends
Device body two ends are by end cap（6）Encapsulation, after completing assembling, all outer pole pipes and interior pole pipe difference electrical communication of sensor, shape
Into the two poles of the earth of electric capacity, by installed in the second metal tube sub-assembly（3）Terminal box on body（4）Apply one to sensor to swash
Signal is encouraged to a pole of electric capacity, from another pole output and the linear capacitance signal of liquid level signal of electric capacity.
2. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：Each metal tube sub-assembly is equipped with
Clip（2）.
3. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：Pole pipe in each（7）, outer pole pipe（8）
All it is formed with the free end of body by buckling the mouth hanging with bonding jumper connection（10）.
4. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：First metal tube sub-assembly（1）It is interior
Pole pipe（7）, outer pole pipe（8）Only side buckles, inside and outside pole pipe（7、8）Pivot pin installing hole alignment, keep mouth hanging（10）
The same side, is respectively charged into two pivot pins of installing hole（9）Expose outer pole pipe part holt melt sizing, end cap in both sides（6）Install outside
In pole pipe.
5. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：In the second metal tube sub-assembly（3）Two
A clip is loaded onto respectively in side（2）, in two clips（2）Opposite side be respectively mounted a 3rd metal tube sub-assembly（5）With
First metal tube sub-assembly（1）, in the 3rd metal tube sub-assembly（5）Opposite side fill a clip（2）, in clip（2）It is another
Side is installed by one the first metal tube sub-assembly（1）, in two the first metal tube sub-assemblies（1）Termination is installed by upper end cover（6）.
6. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：Whole outer pole pipes（8）With interior pole pipe（7）
Electrical communication forms the two poles of the earth of electric capacity respectively, by terminal box（4）Apply a pumping signal to a pole of electric capacity, from another pole
Output and the linear capacitance signal of liquid level signal.
7. adjustable-length liquid level sensor as claimed in claim 1, it is characterised in that：When the liquid level between metal tube is sent out
During changing, the dielectric constant and the linear change of liquid level between metal tube, therefore the electric capacity between metal tube the two poles of the earth
Value is linear with liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903765.0U CN206038102U (en) | 2016-08-18 | 2016-08-18 | Adjustable length level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903765.0U CN206038102U (en) | 2016-08-18 | 2016-08-18 | Adjustable length level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038102U true CN206038102U (en) | 2017-03-22 |
Family
ID=58307096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620903765.0U Active CN206038102U (en) | 2016-08-18 | 2016-08-18 | Adjustable length level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038102U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884145A (en) * | 2017-11-23 | 2018-04-06 | 大唐湘潭发电有限责任公司 | A kind of turbine condenser is poured water leak detection device |
| CN107917743A (en) * | 2017-12-21 | 2018-04-17 | 交通运输部天津水运工程科学研究所 | A kind of tantalum wire tolerance formula Wave Sensor device |
| CN109632041A (en) * | 2019-01-23 | 2019-04-16 | 黑河学院 | It is a kind of to detect accurate natural calamity detection device and its detection method |
-
2016
- 2016-08-18 CN CN201620903765.0U patent/CN206038102U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884145A (en) * | 2017-11-23 | 2018-04-06 | 大唐湘潭发电有限责任公司 | A kind of turbine condenser is poured water leak detection device |
| CN107884145B (en) * | 2017-11-23 | 2024-05-28 | 大唐湘潭发电有限责任公司 | Water filling and leakage detecting device for steam turbine condenser |
| CN107917743A (en) * | 2017-12-21 | 2018-04-17 | 交通运输部天津水运工程科学研究所 | A kind of tantalum wire tolerance formula Wave Sensor device |
| CN109632041A (en) * | 2019-01-23 | 2019-04-16 | 黑河学院 | It is a kind of to detect accurate natural calamity detection device and its detection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |