CN207649725U - A kind of liquid level sensor - Google Patents
A kind of liquid level sensor Download PDFInfo
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- CN207649725U CN207649725U CN201820038484.2U CN201820038484U CN207649725U CN 207649725 U CN207649725 U CN 207649725U CN 201820038484 U CN201820038484 U CN 201820038484U CN 207649725 U CN207649725 U CN 207649725U
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- outer barrel
- measuring rod
- lower flange
- flange
- liquid level
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Abstract
The utility model is related to a kind of liquid level sensors, including measuring rod and electronics storehouse, electronics storehouse includes outer barrel, upper flange and lower flange, the projection of outer barrel, upper flange and lower flange in the plane vertical with the axis of outer barrel is regular hexagon and projected area is identical, the medial surface at the both ends of outer barrel is equipped with the sealing inclined-plane of annular, and upper flange, lower flange are equipped with sealing ring；It is equipped with waveguide filament branch fastener close to the position of blind end in measuring rod, waveguide filament branch fastener is fixed on by spring on spring(-supported) mount.The utility model uses the electronics storehouse that outer barrel, upper flange and lower flange in regular hexagon surround, and the electronic devices such as circuit board can be convenient for fixed in electronics storehouse；The structural strength of outer barrel is high, and the sealing inclined-plane on outer barrel can effectively realize the sealing in electronics storehouse with the sealing ring cooperation on upper flange, lower flange, and sealing reliability is high；Waveguide filament branch fastener is fixed on by spring on spring(-supported) mount, and certain tension can be provided to waveguide filament, helps to improve the stability of signal.
Description
Technical field
The utility model is related to liquid level sensor manufacturing technology, especially a kind of design structure of liquid level sensor.
Background technology
Magnetostrictive liquid level sensor is the high-precision for utilizing magnetostriction principle manufacture, ultralong-stroke Absolute position measurement
Sensor is made of impulse circuit, waveguide wire, echo-signal unit, structural member and protection sleeve pipe etc., has precision high, steady
Qualitative reliable, long lifespan, the features such as easy for installation, a variety of way of outputs are available, it can not only measure the straight of moving object
Displacement of the lines, and displacement and the speed signal of moving object can be provided.Due to using non-contact measurement mode, magnetostriction
Liquid level sensor performance stablize, service life is long, and with a variety of way of outputs it is selective, be widely used in petrochemical industry,
In the industry devices such as food, water process, environmental protection, pesticide, papermaking, reservoir, dyestuff and oil pressure machinery.Its operation principle is:Work as survey
When amount, impulse generator generates waveguide pulse, is transformed into after electronic section is handled and is risen along the current impulse that waveguide wire is propagated
The magnetic field that initial pulse, the magnetic field generated and magnet ring are formed is superimposed, generates instantaneous torsion, so that waveguide wire is twisted and generate tension
Pulse, this pulse are returned with fixed speed along waveguide wire, are generated induced current pulse, that is, terminate pulse at coil both ends, are led to
Liquid level or displacement can accurately be measured by spending the time difference measured between initial pulse and terminate pulse.
As disclosed in the Chinese patent document of Publication No. CN201688892U " digital magnetostrictive liquid level sensor ",
Cable connector including measuring staff, electronics storehouse and installation and the top in electronics storehouse, measuring staff is hollow tube, has waveguide in hollow tube
Silk；Interface float there are two being also arranged on measuring staff.Liquid level sensor disclosed in the patent document, electronics chamber structure intensity is insufficient and
Electronics storehouse sealing structure poor reliability is susceptible to the sealing leakage of electronics storehouse；Waveguide filament fixed structure is unreasonable, is susceptible to wave
Seal wire damages.
Utility model content
The purpose of this utility model is to provide a kind of liquid level sensors, for solving existing magnetostrictive liquid level sensor
Electronics storehouse is fixed, sealing structure is unreliable, the flimsy problem of waveguide filament.
To solve the above-mentioned problems, the utility model provides a kind of liquid level sensor, including measuring rod and electronics storehouse, described
Measuring rod is to be equipped with the waveguide filament being connected with the electronics storehouse in hollow pipeline and the measuring rod, is also covered on the measuring rod
Equipped with water float and oil float, the electronics storehouse includes outer barrel, upper flange and lower flange, the outer barrel, the upper flange and institute
State that projection of the lower flange in the plane vertical with the axis of the outer barrel is regular hexagon and projected area is identical, it is described on
Flange, the lower flange are fixedly linked by screw and the outer barrel, and the cavity for electronic device is formed in the outer barrel,
The medial surface at the both ends of the outer barrel be equipped with annular sealing inclined-plane, the upper flange, the lower flange be equipped with it is described
The sealing ring of sealing inclined-plane cooperation；The measuring rod is weldingly connected with the lower flange, and the measuring rod is far from the lower flange
One end be blind end, be equipped with waveguide filament branch fastener, the waveguide filament branch close to the position of the blind end in the measuring rod
Fastener is fixed on by spring on spring(-supported) mount.
Liquid level sensor provided by the utility model also has following technical characteristic：
Further, multiple supporting blocks are additionally provided in the measuring rod, the supporting block is equipped with wears for the waveguide filament
The through-hole crossed.
Further, the lower flange includes flange body and guide post, and the flange body joins with the guide post
Place offers the seal groove of annular in order to install the sealing ring.
Further, the axis threaded hole parallel with the waveguide filament, circuit are further opened on the end face of the guide post
Board mounting stand is mounted on by screw on the end face of the guide post.
Further, circuit board is also mounted on the circuit board installation frame, the circuit board is equipped with coil group
Part and damper tube are additionally provided with the aviation plug being connected with the circuit board on the upper flange.
Further, it is also equipped with helmet on the blind end of the measuring rod.
The utility model has the advantages that：It is enclosed by using in the outer barrel, upper flange and lower flange of regular hexagon
At electronics storehouse, the electronic devices such as circuit board can be convenient for fixed in electronics storehouse, the structural strength of outer barrel is high, is unlikely to deform, and has
There is explosion-proof performance, and protective effect is provided to internal part；Outer barrel with by screw directly with upper flange, lower flange stationary phase
Even, simple in structure and connection is reliable；Sealing inclined-plane on outer barrel can be effectively with the sealing ring cooperation on upper flange, lower flange
Realize that the sealing in electronics storehouse, sealing reliability are high；Waveguide filament branch fastener is fixed on by spring on spring(-supported) mount, can be carried to waveguide filament
For certain tension, the stability of signal is helped to improve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the liquid level sensor of the utility model embodiment；
Fig. 2 is the partial enlarged view in the portions A in Fig. 1；
Fig. 3 is the partial enlarged view in the portions B in Fig. 1；
Fig. 4 is the sectional view of the lower flange in the utility model；
Fig. 5 is the upward view of the lower flange in Fig. 4；
Fig. 6 is the sectional view of the upper flange in the utility model；
Fig. 7 is the sectional view of the outer barrel in the utility model；
Fig. 8 is the left view of the outer barrel in Fig. 7；
Fig. 9 is the structural schematic diagram after the lower flange in the utility model embodiment is welded and fixed with measuring rod.
Specific implementation mode
The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not rushing
In the case of prominent, the feature in the embodiments of the present invention and embodiment can be combined with each other.
In one embodiment of the liquid level sensor of the utility model as shown in Figures 1 to 9, which includes
Measuring rod 10 and electronics storehouse, measuring rod 10 are to be equipped with the waveguide filament being connected with the electronics storehouse in hollow pipeline and measuring rod 10
101, also it is arranged with water float 11 and oil float 12 on measuring rod 10, electronics storehouse includes outer barrel 20, upper flange 30 and lower flange 40,
The projection of outer barrel 20, upper flange 30 and lower flange 40 in the plane vertical with the axis of outer barrel 20 is regular hexagon and projection
Area is identical, and upper flange 30, lower flange 40 are fixedly linked by screw and outer barrel 20, are formed with for electronic device in outer barrel 20
Cavity, the medial surface at the both ends of outer barrel 20 is equipped with the sealing inclined-plane 201 of annular, upper flange 30, lower flange 40 be equipped with
The sealing ring 50 that sealing inclined-plane 201 coordinates；Measuring rod 10 is weldingly connected with lower flange 40, measuring rod 10 far from lower flange 40 one
It is blind end to hold, and waveguide filament branch fastener 13 is equipped with close to the position of the blind end in measuring rod 10, and waveguide filament branch fastener 13 is logical
Spring 14 is crossed to be fixed on spring(-supported) mount 15.Liquid level sensor in the embodiment, by using the outer barrel in regular hexagon, upper method
The electronics storehouse that blue and lower flange surrounds can be convenient for the electronic devices such as circuit board fixed in electronics storehouse, the structural strength height of outer barrel,
It is unlikely to deform, outer barrel is directly fixedly linked with upper flange, lower flange with by screw, and simple in structure and connection is reliable；On outer barrel
Sealing inclined-plane and upper flange, the sealing ring cooperation on lower flange can effectively realize the sealing in electronics storehouse, sealing reliability
It is high；Waveguide filament branch fastener is fixed on by spring on spring(-supported) mount, and waveguide filament damage is can effectively prevent.
In the above-described embodiments, which also has following technical characteristic：Preferably, upper flange 30, lower flange
Counter sink is respectively equipped on 40, two end faces of outer barrel 20 are equipped with threaded hole, and countersunk head soket head cap screw passes through upper flange, laxative remedy
Upper flange, lower flange and outer barrel are fixedly linked by the threaded hole cooperation on the counter sink and outer barrel on orchid.
Preferably, multiple supporting blocks 16 are additionally provided in measuring rod 10, supporting block 16 is equipped with leads to for what waveguide filament 101 passed through
Thus hole can be supported waveguide filament, protect, it is to be understood that under normal circumstances, waveguide filament is located at the through-hole of supporting block
It is interior and do not contacted with supporting block.
Preferably, lower flange 40 includes flange body 41 and guide post 42, and flange body 41 is opened with 42 junction of guide post
Seal groove 43 equipped with annular is in order to install sealing ring 50, so that lower flange is connected by screw increasing back sealing ring with outer barrel
Axial, radial sealing is can be achieved at the same time, sealing reliability is high, it is to be understood that also is provided with guide post on upper flange 30
And seal groove.
Preferably, the axis threaded hole parallel with waveguide filament 101, circuit board installation are further opened on the end face of guide post 42
Frame 60 is mounted on by screw on the end face of guide post 42, thus can facilitate, be reliably achieved the installation of circuit board to fix.Circuit
Circuit board 61 is also mounted on board mounting stand 60, circuit board 61 is equipped with coil block 62 and damper tube 63, upper flange 30
On be additionally provided with the aviation plug 31 being connected with circuit board 61, aviation plug can connect convenient for liquid level sensor with other equipment, can
With understanding, the upper electrical device structures of the circuit board in electronics storehouse, circuit, which are constituted, etc. can be used the ordinary skill in the art,
Details are not described herein.
Preferably, it is also equipped with helmet 17 on the blind end of measuring rod 10, specifically, being set on the blind end of measuring rod 10
There are threaded hole, helmet 17 to be fixed on measuring rod by screw and threaded hole cooperation, thus can protect measuring rod,
Measuring rod collides with other devices when avoiding liquid level sensor installation fixed causes measuring rod to damage.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of liquid level sensor, including measuring rod and electronics storehouse, the measuring rod is peace in hollow pipeline and the measuring rod
Equipped with the waveguide filament being connected with the electronics storehouse, water float and oil float are also arranged on the measuring rod, which is characterized in that
The electronics storehouse includes outer barrel, upper flange and lower flange, the outer barrel, the upper flange and the lower flange with the outer barrel
The vertical plane of axis on projection be regular hexagon and projected area is identical, the upper flange, the lower flange pass through
Screw is fixedly linked with the outer barrel, is formed with the cavity for electronic device in the outer barrel, the both ends of the outer barrel it is interior
Side is equipped with the sealing inclined-plane of annular, and the upper flange, the lower flange are equipped with the sealing coordinated with the sealing inclined-plane
Ring；The measuring rod is weldingly connected with the lower flange, and the one end of the measuring rod far from the lower flange is blind end, described
It is equipped with waveguide filament branch fastener close to the position of the blind end in measuring rod, the waveguide filament branch fastener is fixed on bullet by spring
On spring support.
2. liquid level sensor according to claim 1, it is characterised in that：Multiple supporting blocks are additionally provided in the measuring rod,
The supporting block is equipped with the through-hole passed through for the waveguide filament.
3. liquid level sensor according to claim 1, it is characterised in that：The lower flange includes flange body and guiding
Column, the flange body offer the seal groove of annular in order to install the sealing ring with the guide post junction.
4. liquid level sensor according to claim 3, it is characterised in that：It is further opened with axis on the end face of the guide post
The threaded hole parallel with the waveguide filament, circuit board installation frame are mounted on by screw on the end face of the guide post.
5. liquid level sensor according to claim 4, which is characterized in that be also mounted on the circuit board installation frame
Circuit board, the circuit board be equipped with coil block and damper tube, is additionally provided on the upper flange and is connected with the circuit board
Aviation plug.
6. liquid level sensor according to claim 1, it is characterised in that：Shield is also equipped on the blind end of the measuring rod
Cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038484.2U CN207649725U (en) | 2018-01-10 | 2018-01-10 | A kind of liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038484.2U CN207649725U (en) | 2018-01-10 | 2018-01-10 | A kind of liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207649725U true CN207649725U (en) | 2018-07-24 |
Family
ID=62877056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038484.2U Active CN207649725U (en) | 2018-01-10 | 2018-01-10 | A kind of liquid level sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN207649725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540266A (en) * | 2019-01-17 | 2019-03-29 | 北京锐达仪表有限公司 | A kind of magnetostriction liquidometer and level measuring method |
| CN112923841A (en) * | 2021-01-20 | 2021-06-08 | 杭州浙达精益机电技术股份有限公司 | Damping vibration absorption structure with magnetostrictive effect |
-
2018
- 2018-01-10 CN CN201820038484.2U patent/CN207649725U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540266A (en) * | 2019-01-17 | 2019-03-29 | 北京锐达仪表有限公司 | A kind of magnetostriction liquidometer and level measuring method |
| CN109540266B (en) * | 2019-01-17 | 2023-11-07 | 北京锐达仪表有限公司 | Magnetostrictive liquid level meter and liquid level measurement method |
| CN112923841A (en) * | 2021-01-20 | 2021-06-08 | 杭州浙达精益机电技术股份有限公司 | Damping vibration absorption structure with magnetostrictive effect |
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