CN209085687U - Electromagnetic flowmeter and plant protection drone with the electromagnetic flowmeter - Google Patents
Electromagnetic flowmeter and plant protection drone with the electromagnetic flowmeter Download PDFInfo
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- CN209085687U CN209085687U CN201821994562.2U CN201821994562U CN209085687U CN 209085687 U CN209085687 U CN 209085687U CN 201821994562 U CN201821994562 U CN 201821994562U CN 209085687 U CN209085687 U CN 209085687U
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Abstract
The utility model provides a kind of electromagnetic flowmeter and the plant protection drone with the electromagnetic flowmeter, which includes: shell (8), and shell has accommodation space；Bracket (1), bracket is mounted in accommodation space；Pipeline (2), pipeline are set to bracket, and two open ends of pipeline are exposed outside bracket；Two electrodes (3), after the test side of two electrodes is each passed through the side wall of bracket and pipeline, are in contact, the test side of two electrodes is oppositely arranged with the liquid flowed through in pipeline；Two signal acquiring boards (4), two signal acquiring boards and two electrodes are correspondingly arranged at the same side of bracket, and for acquiring the signal of corresponding lateral electrode, at least one signal acquiring board is equipped with earth jack (61)；Two coil blocks (5), the opposite other two sides for being set to bracket；With ground connections (500), the inner sidewall of shell is fixed on across earth jack, so that the earthing of casing.
Description
Technical field
The utility model relates to field of flow detection more particularly to a kind of electromagnetic flowmeter and with the electromagnetic flowmeter
Plant protection drone.
Background technique
Electromagnetic flowmeter be it is a kind of using electromagnetic induction principle will be flowed through according to conductor externally-applied magnetic field generate induced electromotive force
It measures a kind of instrument of water flow, is widely used in the scenes such as agricultural plant protection operation, food processing, industrial solvent filling.
Circuit in electromagnetic flowmeter etc. is easy the interference by external signal, in the related technology, for the interference for reducing external signal, meeting
Electromagnetic flowmeter is sealed in electro-magnetic shielding cover, the inside of external signal interference electromagnetic flowmeter is prevented by electro-magnetic shielding cover
Circuit etc..However, the volume and weight that additional increased electro-magnetic shielding cover will lead to electromagnetic flowmeter greatly increases, it is unfavorable for pair
The more sensitive equipment such as plant protection drone of volume and weight uses.
Utility model content
The utility model provides a kind of electromagnetic flowmeter and the plant protection drone with the electromagnetic flowmeter.
Specifically, the utility model is achieved by the following technical solution:
It is according to the present utility model in a first aspect, providing a kind of electromagnetic flowmeter, the electromagnetic flowmeter includes:
Shell, the shell have accommodation space；
Bracket, the bracket are mounted in the accommodation space, and the bracket is plastic material；
Pipeline, the pipeline is set to the bracket, and two open ends of the pipeline are exposed outside the bracket；
Two electrodes can after the test side of two electrodes is each passed through the side wall of the bracket and the pipeline
It is in contact with the liquid flowed through in the pipeline, and the test side of two electrodes is oppositely arranged；
Two signal acquiring boards, two signal acquiring boards are correspondingly arranged at the same of the bracket with two electrodes
Side, the signal acquiring board are used to acquire the signal of corresponding lateral electrode；With
Two coil blocks, the opposite other two sides for being set to the bracket of two coil blocks, for generating electromagnetism
?；
Wherein, at least one described signal acquiring board is equipped with earth jack, and the electromagnetic flowmeter further includes that ground connection connects
Fitting, the ground connections pass through the inner sidewall that the earth jack is fixed on the shell, so that the earthing of casing.
Optionally, the shell includes shell and cover board, and the side of the shell is equipped with opening, and the cover board is set for covering
The opening, and contacted with the housing conductive, one of open end of the pipeline is opened from the shell is relatively described
The side side wall of mouth stretches out, another open end of the pipeline is stretched out from the cover board；
One of signal acquiring board is disposed adjacent with the cover board, the earth jack be set to the cover board it is adjacent and
On the signal acquiring board of setting, the ground connections pass through the earth jack and are fixed on the cover board, so that the lid
Plate and the frame ground.
Optionally, the electromagnetic flowmeter further includes control panel, and the control panel and two signal acquiring boards are distinguished
It is electrically coupled connection, the control panel is used for the signal according to two signal acquiring board acquisitions, and acquisition flows through the pipeline
The flow and/or rate of liquid；
The control panel and one of signal acquiring board are integrally disposed on same circuit board.
Optionally, the side wall of the cover board towards the opening is equipped with ground connection protrusion, and the ground connections pass through described
It is detachably connected after earth jack with the ground connection protrusion.
Optionally, the junction of the shell and the cover board is equipped with first seal, for preventing water from the shell
Opening periphery and the cover board between gap flow into the shell.
Optionally, the electromagnetic flowmeter further includes first pipe connector and second pipe connector, first pipe
Road connector is connected with the open end that the pipeline stretches out the cover board, and the second pipe connector and the pipeline stretch out
The open end of the shell is connected；
Also, the first pipe connector is fixedly connected with the cover board, the second pipe connector and the shell
Body is fixedly connected.
Optionally, the cover board is equipped with the first installation base, and first installation base is equipped with the second through-hole, and described the
Two through-holes are connected to the open end of the pipeline；
The first pipe connector is set on first installation base.
Optionally, the inner sidewall of the first pipe connector be equipped with third stage portion, the third stage portion with it is described
The end face on the top of the first installation base abuts.
Optionally, between the third stage portion and the end face of the open end of first installation base far from the pipeline
Equipped with second seal, for prevent the water in the pipeline from the first pipe connector and first installation base it
Between gap flow into the shell.
Optionally, the shell is equipped with the second installation base, and second installation base is equipped with third through-hole；
The second pipe connector is set on second installation base.
Optionally, the is equipped between the inner sidewall of the second pipe connector and the lateral wall of second installation base
Two sealing rings, for prevent water from the shell it is external by the first pipe connector and second installation base it
Between gap flow into the shell.
Optionally, the inner sidewall of the second pipe connector be equipped with the 4th stage portion, the 4th stage portion with it is described
The end face on the top of the second installation base abuts.
Optionally, it is equipped with third sealing element between the 4th stage portion and the top of second installation base, is used for
Prevent gap of the water in the pipeline between the second pipe connector and second installation base from flowing into the shell
In vivo.
Optionally, the ground connections are threaded fastener.
Second aspect according to the present utility model, provides a kind of plant protection drone, and the plant protection drone includes:
Rack；
Spray assembly is mounted on the rack；
Medicine-chest is mounted on the rack；With
The described in any item electromagnetic flowmeters of above-described embodiment, the electromagnetic flowmeter is for sprinkling group described in real-time detection
The sprinkling flow of part, and one of open end of the pipeline of the electromagnetic flowmeter passes through diversion pipe and the spray assembly
It is connected, another open end is connected by diversion pipe with the medicine-chest.
By the above technical solution provided by the embodiment of the utility model as it can be seen that matching by earth jack and ground connections
It closes, realizes the ground connection of shell, shell can play the role of electromagnetic shielding, and the utility model is not increasing additional electromagnetic shielding
In the case where cover, it can avoid signal acquiring board etc. by the earthing of casing and interfered by external signal, this mode not will increase
The volume and weight of electromagnetic flowmeter, electromagnetic flowmeter it is applied widely.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structure broken away view of the electromagnetic flowmeter in an embodiment of the present invention；
Fig. 2 is the structure broken away view of the electromagnetic flowmeter of embodiment illustrated in fig. 1 in another direction；
Fig. 3 is the perspective view of the electromagnetic flowmeter of embodiment illustrated in fig. 1；
Fig. 4 is the sectional view of the electromagnetic flowmeter in an embodiment of the present invention；
Fig. 5 is the partial enlarged view of the electromagnetic flowmeter of embodiment illustrated in fig. 4；
Fig. 6 is the perspective view of the electrode in an embodiment of the present invention；
Fig. 7 is the perspective view of the electrode fixed plate in an embodiment of the present invention；
Fig. 8 is the part-structure assembling schematic diagram of the electromagnetic flowmeter in an embodiment of the present invention；
Fig. 9 is structural schematic diagram of the electromagnetic flowmeter in other direction of embodiment illustrated in fig. 8；
Figure 10 is structural schematic diagram of the electromagnetic flowmeter in another direction of embodiment illustrated in fig. 8；
Figure 11 is structural schematic diagram of the electromagnetic flowmeter in another direction of embodiment illustrated in fig. 8；
Figure 12 is the diagrammatic cross-section of the electromagnetic flowmeter in an embodiment of the present invention；
Figure 13 is the partial enlarged view of the electromagnetic flowmeter of embodiment illustrated in fig. 12；
Figure 14 is another partial enlarged view of the electromagnetic flowmeter of embodiment illustrated in fig. 12；
Figure 15 is the part-structure perspective view of the electromagnetic flowmeter in an embodiment of the present invention；
Figure 16 is the perspective view of the plant protection drone in an embodiment of the present invention.
Appended drawing reference: 1000: rack；1100: fuselage；1200: foot prop；1300: horn；2000: spray assembly；3000:
Medicine-chest；4000: electromagnetic flowmeter；1: bracket；11: electrode mounting hole；12: accommodation groove；13: positioning match part；2: pipeline；3: electricity
Pole；31: electrical connection hole；32: boss；33: first step portion；4: signal acquiring board；41: conductive hole；5: coil block；51: spiral shell
Spin line circle；511: iron core；512: coil；52: coil mounting plate；6: control panel；61: earth jack；62: the second electrical connection sections；
7: electrode fixed plate；71: first through hole；72: location hole；8: shell；81: shell；811: the second installation bases；8111: installation
Slot；812: the second mounting holes；82: cover board；821: the second positioning regions；822: ground connection protrusion；823: the first installation bases；824: the
One mounting hole；825: interface；9: signal wire；10: the first sealing rings；20: first seal；30: second seal；40: the
Two sealing rings；50: third sealing element；100: first pipe connector；110: third stage portion；120: the first mounting portions；200:
Second pipe connector；210: the four stage portions；220: the second mounting portions；300: plug；400: conducting connecting part；500: connecing
Earth connection.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.
It is only to be not intended to be limiting this reality merely for for the purpose of describing particular embodiments in the term that the utility model uses
With novel.In the "an" of the utility model and singular used in the attached claims, " described " and "the"
Most forms are intended to include, unless the context clearly indicates other meaning.It is also understood that term used herein " and/
Or " refer to and include that one or more associated any or all of project listed may combine.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not
In the case where being detached from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also be with
The referred to as first information.Depending on context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determination ".
With reference to the accompanying drawing, the plant protection drone to the electromagnetic flowmeter of the utility model and with the electromagnetic flowmeter into
Row is described in detail.In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.
In conjunction with Fig. 1 to Fig. 4, the utility model embodiment provides a kind of electromagnetic flowmeter, which can wrap
Include bracket 1, pipeline 2, electrode 3, signal acquiring board 4 and coil block 5.Wherein, pipeline 2 is set to bracket 1, and the two of pipeline 2 open
Expose outside bracket 1 at mouth end.The pipeline 2 of the present embodiment is used for for liquid (as when electromagnetic flowmeter 4000 is applied in plant protection drone
On, liquid can be water or liquid pesticide) it flows through, optionally, the pipeline 2 of the present embodiment is a straight pipeline 2, two of pipeline 2
Expose respectively from two opposing sidewalls of bracket 1 open end.Optionally, the material of pipeline 2 is identical as the material of bracket 1, and manages
Road 2 and bracket 1, which are integrally formed, to be arranged.
The electrode 3 of the present embodiment includes two, and two electrodes 3 are oppositely arranged on the two sides of bracket 1, the inspection of two electrodes 3
It surveys after end is each passed through the side wall of bracket 1 and pipeline 2, can be contacted with the liquid flowed through in pipeline 2, and two electrodes 3
Test side is oppositely arranged.
Further, signal acquiring board 4 also includes two, and two signal acquiring boards 4 and two electrodes 3 are correspondingly arranged at branch
The same side of frame 1, signal acquiring board 4 are used to acquire the signal of corresponding lateral electrode 3.In the present embodiment, adopted by the signal of every side
Collect the signal that plate 4 acquires the electrode 3 of respective side, can reduce signal interference.The signal acquiring board 4 of the present embodiment is collecting pair
After the signal for answering electrode 3, collected signal can be amplified, be filtered, to reduce the noise of signal, such as signal acquisition
Plate 4 is equipped with difference channel, and the signal of the collected electrode 3 of signal acquiring board 4 can remove common-mode noise through the difference channel.
Further, the coil block 5 of the present embodiment also includes two, and two coil blocks 5 are relatively set on bracket 1
In addition two sides.In the present embodiment, for two coil blocks 5 for generating electromagnetic field, which is alternating magnetic field, two coils
The electromagnetic field that component 5 generates can pass through pipeline 2 and enter in pipeline 2.When flowing through the change in flow of liquid of pipeline 2, in electricity
Under the action of magnetic field, the difference of the induced electromotive force of two electrodes 3 can also change therewith.
The topology layout mode of the bracket 1 of the utility model embodiment, electrode 3, signal acquiring board 4 and coil block 5 increases
Add compactedness between structure, to reduce the volume of electromagnetic flowmeter 4000, and mitigates the weight of electromagnetic flowmeter 4000.
In some embodiments, electromagnetic flowmeter 4000 further includes control panel 6, the control panel 6 and two signal acquiring boards 4
It is electrically coupled connection respectively, also, the signal that the control panel 6 can be acquired according to two signal acquiring boards 4, acquisition flow through pipeline 2
The flow and/or rate of interior liquid.Optionally, control panel 6 and one of signal acquiring board 4 are integrally disposed in same circuit
On plate, one of signal acquiring board 4 of the utility model embodiment and the integrally disposed mode of control panel 6 are further increased
The compactedness of structure, to reduce the volume of electromagnetic flowmeter 4000, and mitigates the weight of electromagnetic flowmeter 4000.It is optional
, control panel 6 and one of signal acquiring board 4 are set on the same side of bracket 1, also, control panel 6 and the signal of the same side are adopted
Collection plate 4 is fixedly connected to form an overall structure by fixedly connected part (such as screw or bolt threaded fastener), to increase
The compactedness of structure, to reduce the volume of electromagnetic flowmeter 4000.
In further embodiments, the function of control panel 6 is integrated on a signal acquiring board 4, two signals
Collection plate 4 is electrically coupled connection, and the present embodiment is to be adopted by being integrated with the signal acquiring board 4 of 6 function of control panel according to two signals
Collect the signal that plate 4 acquires, obtains the flow and/or rate for flowing through the liquid in pipeline 2.
Wherein, the calculation formula for flowing through the flow Q of the liquid in pipeline 2 is as follows:
In formula (1), B is magnetic field strength；U is the induced electromotive force that two electrodes 3 generate；A is the cross section of pipeline 2
Product；D is the diameter of pipeline 2；K is correction factor, it is contemplated that the liquid rate in pipeline 2 is in fact and unevenly etc. because usually setting
The size of k is set, the flow Q for flowing through the liquid in pipeline 2 obtained is calculated by formula (1) and actually flows through pipeline to reduce
Error between the flow of liquid in 2.
Optionally, k is about 0.8, for example, k can be 0.8 ± 0.05.For specific dimensions, for the electromagnetism of specific operation
Flowmeter 4000, available space method (liquid capacity in pipeline 2 is flowed through in certain time) demarcate the size of k.
It, can be according to the liquid flowed through in pipeline 2 after being calculated according to formula (1) and flowing through the flow Q of the liquid in pipeline 2
Flow Q calculate the rate for flowing through the liquid in pipeline 2.
Optionally, bracket 1 is plastic material, is convenient for magnetic field penetration, and it is possible to mitigate the weight of electromagnetic flowmeter 4000
Amount.Certainly, the material of bracket 1 is not limited to plastics, also may be selected to be other quality it is relatively light, convenient for the material of magnetic field penetration.It is optional
, bracket 1 can be the square configurations such as square or cuboid, can also be other regular shapes, can specifically design branch as needed
The shape of frame 1.
Following embodiment by bracket 1 be it is rectangular for the structure of electromagnetic flowmeter 4000 is further described.
In the present embodiment, bracket 1 may include the first side wall being oppositely arranged and second sidewall, and one of electrode 3 is set to
The side of the first side wall, another electrode 3 are set to the side of second sidewall.Wherein, the first side wall and second sidewall are respectively equipped with
The position of electrode mounting hole 11,2 side wall counter electrode mounting hole 11 of pipeline is equipped with through hole, and electrode mounting hole 11 is passed through with corresponding
Perforation is connected.After the test side of one of electrode 3 passes through the electrode mounting hole 11 and corresponding through hole of the first side wall, until
Small part is exposed in pipeline 2.The test side of another electrode 3 passes through the electrode mounting hole 11 of second sidewall and corresponding runs through
Kong Hou is at least partly exposed in pipeline 2.
If electrode 3 and electrode mounting hole 11 are poorly sealed, the liquid in pipeline 2 can leak through electrode mounting hole 11 and be entered
Signal acquiring board 4 may result in 4 short circuit of signal acquiring board.So to prevent the liquid leakage in pipeline 2, in some implementations
In example, the test side lateral wall of electrode 3 is abutted with the side wall of through hole.And in further embodiments, outside the test side of electrode 3
Side wall with the side wall of through hole is non-abuts connection, but sealing ring is set between the test side of electrode 3 and the side wall of through hole,
The sealing ring can be rubber seal, can also be the sealing ring of other materials.
Optionally, in conjunction with Fig. 5 and Fig. 6, the test side of electrode 3 is equipped with first step portion 33, and the side wall correspondence of through hole is set
Have second step portion (not shown), first step portion 33 and second step portion contact, by second step portion to electrode 3 into
Row limit, prevents electrode 3 from installing excessively.
In some embodiments, referring to fig. 4, electromagnetic flowmeter 4000 is additionally provided with the first sealing ring 10, first sealing ring
Between 10 are set on electrode 3, also, first sealing ring 10 is used between enclosed electrode 3 and the side wall of electrode mounting hole 11
Gap further prevents the liquid leakage in pipeline 2.Specifically, between each electrode 3 and the side wall of corresponding electrode mounting hole 11
It is equipped with the first sealing ring 10.First sealing ring 10 can be rubber seal, can also be the sealing ring of other materials, this is practical
New embodiment is not especially limited the material of the first sealing ring 10.
Further, in conjunction with fig. 4 to fig. 6, the side wall of electrode 3 is equipped with boss 32, and the side wall of electrode mounting hole 11 is equipped with platform
Terrace, boss 32 abut connection with step surface, and the first sealing ring 10 is set to the side of test side of the boss 32 far from electrode 3, lead to
Such structure design is crossed, prevents liquid from leaking from electrode mounting hole 11.
Optionally, electrode 3 includes the different cylindrical body of multistage diameter, as shown in fig. 6, being located at test side end face on electrode 3
To between 33 end face of first step portion on diameter < electrode 3 of part be located at 33 end face of first step portion between 32 end face of boss
On partial diameter < electrode 3 between 32 end face of boss and the tail end end face of electrode 3 part diameter.Wherein, electrode 3
The test side of tail end and electrode 3 is located at the both ends of electrode 3.
In the present embodiment, electrode 3 can be taken out from electrode mounting hole 11, convenient for the maintenance and replacement of electrode 3.
To make two electrodes 3 preferably generate induced electromotive force, in some embodiments, two coaxial settings of electrode 3,
The test side face of i.e. two electrodes 3.Further, two coil blocks 5 are also coaxially disposed.Optionally, the axial direction of electrode 3 with
The axial direction of coil block 5 is perpendicular.
In addition, preventing electrode 3 from falling from electrode mounting hole 11, optionally, in conjunction with figure for electrode 3 to be located in bracket 1
1, Fig. 2, Fig. 4, Fig. 5 and Fig. 7, electromagnetic flowmeter 4000 may also include electrode fixed plate 7, the electrode fixed plate 7 of the present embodiment
Including two, two electrode fixed plates 7 are used to respectively be fixed on two electrodes 3 the correspondence side wall of bracket 1.
Specifically, electrode fixed plate 7 is abutted with electrode 3, also, electrode fixed plate 7 is mounted on branch by Quick Release connector
On the side wall of frame 1, so that electrode 3 is located in bracket 1.The present embodiment is cooperated by electrode fixed plate 7 and Quick Release connector,
Electrode 3 is located in bracket 1, prevents electrode 3 from falling；Also, electrode fixed plate 7 is mounted on bracket 1 by Fast detachable unit,
When electrode 3 is needed replacing or repaired, directly Quick Release connector can be disassembled from bracket 1, so that electrode 3 is quickly removed,
It is easy to operate.
The type of Quick Release connector can select as needed, and the Quick Release connector of the present embodiment may include following at least one
Kind: threaded fastener, buckle.Wherein, threaded fastener can be screw or bolt.It is appreciated that the type of Quick Release connector is not
It is limited to this, can is also other quick-disassembly structures.
Again referring to Fig. 7, the electrode fixed plate 7 of the present embodiment further includes location hole 72, and the corresponding position of bracket 1 is equipped with first
Positioning region, Fast detachable unit are fixed on the first positioning region after wearing location hole 72.Optionally, location hole 72 includes multiple, for example, fixed
Position hole 72 includes two, and two location holes 72 are set to the two sides of first through hole 71, so that electrode fixed plate 7 is more firmly fixed
On bracket 1.Optionally, referring to fig. 2, the side wall of bracket 1 is equipped with accommodation groove 12, and electrode fixed plate 7 is mounted in accommodation groove 12,
Electrode fixed plate 7 is further stably mounted on bracket 1.
Electrode fixed plate 7 can be plastic material or the lighter material of other quality, to mitigate electromagnetic flowmeter 4000
Weight.
In some embodiments, referring to Fig. 7, electrode fixed plate 7 is equipped with first through hole 71, and electrode fixed plate 7 passes through first
Through-hole 71 is sheathed on the tail end of electrode 3, and by being arranged fit system, electrode 3 can be located in more firmly branch by electrode fixed plate 7
In frame 1, prevent electrode 3 from shaking.Optionally, the tail end end face of electrode 3 is equipped with sleeved part (not shown), and electrode fixed plate 7 passes through
First through hole 71 is sheathed on sleeved part.Further consider the compactedness of topology layout, optionally, electrode fixed plate 7 is folded in electricity
Between pole 3 and the signal acquiring board 4 of respective side.
As a kind of feasible implementation, direct contact side can be used between signal acquiring board 4 and the electrode 3 of respective side
Formula realization is electrically coupled connection, for example, signal acquiring board 4 is equipped with the first electrical connection section, electrode 3 is equipped with the first electrically mated portion, and first
Electrical connection section connect the electrode 3 for realizing signal acquiring board 4 and respective side with the first electrically mated portion by grafting or docking mode
Be electrically coupled connection.
As another feasible implementation, it can be used and be indirectly connected between signal acquiring board 4 and the electrode 3 of respective side
Mode, which is realized, is electrically coupled connection, and optionally, in conjunction with Fig. 1 and Fig. 6, the tail end of electrode 3 is equipped with electrical connection hole 31, signal acquiring board 4
Equipped with conductive hole 41.Electromagnetic flowmeter 4000 may also include conducting connecting part 400, wherein conducting connecting part 400 includes two.
Two conducting connecting parts 400 cooperate with the hole 31 that is electrically connected of the conductive hole 41 of the signal acquiring board of respective side 4 and electrode 3 respectively,
Specifically, conducting connecting part 400 pass through after conductive hole 41 be electrically connected hole 31 and be fixedly connected so that the letter of electrode 3 and respective side
The realization of number collection plate 4 is electrically coupled connection.Signal acquiring board 4 is fixedly connected by the present embodiment by conducting connecting part 400 with electrode 3
Get up, it is ensured that the stability of connection is electrically coupled between signal acquiring board 4 and electrode 3.Optionally, conducting connecting part 400 is screw thread
Fastener, such as contact screw or conducting bolt.Optionally, it is electrically connected in hole 31 and conductive hole 41 and is respectively equipped with electrical contact end
Son, the both ends of conducting connecting part 400 are electric with the electric contact terminal in the electric contact terminal and conductive hole 41 for being electrically connected hole 31 respectively
Contact.
Optionally, signal acquiring board 4 is fixed on bracket 1 by fastener, the fastener can for screw, bolt or other
Fast detachable unit.
The bracket 1 of the present embodiment may also include the third side wall and the 4th side wall being oppositely arranged, one of coil block 5
Set on the side of third side wall, another coil block 5 is set to the side of the 4th side wall.The arrangement of the first side wall and second sidewall
Direction and the arragement direction of third side wall and the 4th side wall are perpendicular, using the arrangement of the electrode 3 and coil block 5 of the present embodiment
Mode, so that the structure of electromagnetic flowmeter 4000 is more compact, to reduce the volume of electromagnetic flowmeter 4000.
In conjunction with Fig. 1, Fig. 2 and Fig. 4, coil block 5 may include spiral winding 51 and coil mounting plate 52, and spiral winding 51 wraps
The coil 512 for including iron core 511 and being wound around on iron core 511, coil mounting plate 52 are fixedly connected with the respective side walls of bracket 1, and
And the respective side walls of coil mounting plate 52 and bracket 1 surround to form accommodating space, iron core 511 and coil 512 are housed in receiving sky
In, so that electromagnetic field is sealed in bracket 1 by coil mounting plate 52.Optionally, coil mounting plate 52 be metal plate such as
Iron plate or steel plate etc., metal plate can block the electromagnetic field of the generation of coil block 5, electromagnetic field are sealed in bracket 1.
In the present embodiment, bracket 1 may also include the 5th side wall and the 6th side wall being oppositely arranged, pipeline 2 one of them
Open end is stretched out from the 5th side wall, another open end of pipeline 2 is stretched out from the 6th side wall.In the present embodiment, the first side wall
With the arrangement of the arragement direction, the arragement direction and the 5th side wall and the 6th side wall of third side wall and the 4th side wall of second sidewall
Direction is respectively perpendicular.
Optionally, pipeline 2 is a root canal road 2, and the extending direction of the substantially vertical pipeline 2 of the axis of spiral winding 51 is arranged,
The topology layout of electromagnetic flowmeter 4000 is more compact.
In conjunction with Fig. 1 to Fig. 3, electromagnetic flowmeter 4000 further includes shell 8, which has accommodation space, and bracket 1 is installed
In accommodation space.Optionally, shell 8 includes shell 81 and cover board 82, and the side of shell 81 is equipped with opening, and cover board 82 is for covering
If opening, bracket 1, electrode 3, signal acquiring board 4, coil block 5 and control panel 6 are set in shell 81.
In some embodiments, cover board 82 is fixedly connected with bracket 1.Optionally, cover board 82 is equipped with the second positioning region
821, bracket 1 is equipped with positioning match part 13, and the second positioning region 821 is connect with positioning match part 13, connects so that cover board 82 is fixed
It connects on bracket 1.Wherein, the second positioning region 821 can be cooperated with positioning match part 13 by grafting or other modes.
In addition, the material of shell 81 and cover board 82 can select as needed, optionally, cover board 82 and/or shell 81 are aluminium
Structure, such as aluminium alloy.Further, the outer surface of cover board 82 and/or shell 81 can be used laser carving technology and carry out coating setting, prevent
Only cover board 82 and/or shell 81 corrode.
In some embodiments, cover board 82 and 81 conductive contact of shell, optionally, cover board 82 and shell 81 directly contact and
Realize electrical contact.Further, earth jack 61, this reality are equipped in conjunction with Fig. 8 to Figure 11, signal acquiring board 4 and/or control panel 6
The electromagnetic flowmeter 4000 for applying example may also include ground connections 500, and ground connections 500 are fixed on outer across earth jack 61
On the inner sidewall of shell 8, it is fixed on cover board 82 as ground connections 500 pass through earth jack 61, so that cover board 82 and shell 81
Ground connection.The present embodiment passes through the cooperation of earth jack 61 and ground connections 500, realizes the ground connection of shell 8, and shell 8 can rise
To the effect of electromagnetic shielding, the present embodiment can be kept away in the case where not increasing additional electro-magnetic shielding cover by the ground connection of shell 8
Exempt from signal acquiring board 4, control panel 6 etc. to be interfered by external signal, the ground connection of shell 8 realizes that the mode of electromagnetic shielding not will increase electricity
The volume and weight of magnetic flowmeter, electromagnetic flowmeter it is applied widely.
Optionally, ground connections 500 are threaded fastener, such as screw or bolt.
As a kind of feasible implementation, earth jack 61 is set on signal acquiring board 4, optionally, one of letter
Number collection plate 4 is disposed adjacent with cover board 82, earth jack 61 be set to it is adjacent with cover board 82 and on the signal acquiring board 4 that is arranged, side
Just ground connections 500 connect earth jack 61 and shell 8.
As another feasible implementation, earth jack 61 is set on control panel 6, optionally, control panel 6 and cover board
82 are disposed adjacent, and ground connections 500 is facilitated to connect earth jack 61 and shell 8.
Optionally, in conjunction with Fig. 9 to Figure 11 and Figure 15, the side wall of cover board 82 towards opening is equipped with ground connection protrusion 822, ground connection
Connector 500 822 is detachably connected after passing through earth jack 61 with ground connection protrusion, by ground connections 500 by 6 He of control panel
Ground connection protrusion 822 is detachably connected, when needing repairing signal acquiring board 4 or control panel 6, directly by ground connections
500 disassemble from ground connection protrusion 822, convenient and efficient.
In addition, causing water (moisture mainly in air) from shell if the sealing of the junction of shell 81 and cover board 82 is bad
Gap between the opening periphery and cover board 82 of body 81 flows into shell 81, then may cause the signal acquiring board 4 in shell 81
With control panel 6 is equal meets water and short-circuit, it is also possible to cause the other component in shell 81 to be damaged by water, so as to cause electromagnetic flowmeter
4000 damages.In this regard, in conjunction with Figure 12 and Figure 13, the junction of shell 81 and cover board 82 is equipped with first seal 20, this is first close
Sealing 20 is used to prevent water (moisture mainly in air) from flowing into from the gap between the opening periphery and cover board 82 of shell 81
In shell 81.The first seal 20 can be rubber seal, can also be the sealing element of other materials, the utility model embodiment
The material of first seal 20 is not especially limited.
Optionally, one of open end of pipeline 2 is stretched out from the side side wall of 81 opposed open of shell, pipeline 2 it is another
One open end is stretched out from cover board 82.It is understood that two open ends of pipeline 2 can also be stretched from the other positions of shell 8
Out.
In conjunction with Fig. 1 to Fig. 3 and Fig. 8 to Figure 12, the electromagnetic flowmeter 4000 of the present embodiment may also include first pipe company
Connector 100 and second pipe connector 200, first pipe connector 100 are connected with one of open end of pipeline 2, the
Two Petrochemical Pipe Joints 200 are connected with another open end of pipeline 2.First pipe connector 100, second pipe connector
200 can connect with external structure, to realize the connection of electromagnetic flowmeter 4000 Yu external structure.
In existing electromagnetic flowmeter, flowing through the liquid in pipeline, current potential may not be identical at the different location of pipeline, and two
The voltage reference of reference when a electrode detection may be inconsistent, leads to low measurement accuracy.For this, in the present embodiment, first
Petrochemical Pipe Joints 100 are fixedly connected with cover board 82, and first pipe connector 100 is conducted with the formation of cover board 82 and is grounded.Further
, second pipe connector 200 is fixedly connected with shell 81, and second pipe connector 200 is conducted with the formation of shell 81 and is grounded.
The ground connection of first pipe connector 100 and second pipe connector 200, so that liquid current potential in pipeline 2 is 0, two
Electrode 3 is detected on the basis of 0 current potential of liquid and obtains electromotive force, to improve the precision of detection.In addition, first pipe connects
If first 100 and second pipe connector 200 be only connected with the open end of pipeline 2, be easy to fall off, the present embodiment connects first pipe
Connector 100 is fixed on cover board 82, and second pipe connector 200 is fixed on shell 81, can prevent first pipe from connecting
First 100 and second pipe connector 200 fall off, improve electromagnetic flowmeter 4000 stability.
Being fixedly connected with mode and can design as needed between first pipe connector 100 and cover board 82, for example, real one
It applies in example, in conjunction with Figure 12 and Figure 13, cover board 82 is equipped with the first installation base 823, and it is logical that the first installation base 823 is equipped with second
Hole, the second through-hole are connected to one of open end of pipeline 2, and first pipe connector 100 is set in the first installation base 823
On.In the present embodiment, since the first installation base 823 is set on cover board 82, therefore the first installation base 823 is also grounded.First pipe
Road connector 100 be set on the first installation base 823 and realize first pipe connector 100 and the first installation base 823 it
Between conduct, to realize the ground connection of first pipe connector 100.In addition, first pipe connector 100 is set in the first peace
It fills on boss 823, first pipe connector 100 can be firmly secured on cover board 82.Optionally, the first installation base
823 be circular ring shape.
Optionally, the inner sidewall of first pipe connector 100 is equipped with third stage portion 110, third stage portion 110 and first
The end face on the top of installation base 823 abuts, it is ensured that first pipe connector 100 is mountable to the first installation base 823
Position.Further, second is equipped between third stage portion 110 and the end face of the first open end of the installation base 823 far from pipeline 2
Sealing element 30, the second seal 30 are used to prevent the water in pipeline 2 from first pipe connector 100 and the first installation base
Gap between 823 flows into shell 81, and then avoids the signal acquiring board 4 in shell 81, control panel 6 etc. and meet water short circuit,
And the other component avoided in shell 81 is damaged by water.The second seal 30 can be rubber seal, can also be other materials
The sealing element of matter, the utility model embodiment are not especially limited the material of second seal 30.
Optionally, cover board 82 is equipped with multiple first mounting holes 824, and first pipe connector 100 includes the first mounting portion
120, the first mounting portion 120 is respectively fixedly connected with by threaded fastener with multiple first mounting holes 824, realizes that first pipe connects
Being stably connected between connector 100 and cover board 82.Multiple first mounting holes 824 interval setting, so as to from different orientation
By first pipe 2, more stably connector is fixed on cover board 82.Wherein, threaded fastener can be screw or bolt.
Being fixedly connected with mode and can also design as needed between second pipe connector 200 and shell 81, for example, one
In embodiment, in conjunction with Figure 12 and Figure 14, shell 81 is equipped with the second installation base 811, and the second installation base 811 is logical equipped with third
Hole, second pipe connector 200 are set on the second installation base 811.In the present embodiment, since the second installation base 811 is set
In on shell 81, therefore the second installation base 811 is also grounded.Second pipe connector 200 be set on the second installation base 811 and
Conducting between second pipe connector 200 and the second installation base 811 is realized, to realize second pipe connector 200
Ground connection.In addition, second pipe connector 200 is set on the second installation base 811, it can be by second pipe connector 200
It is firmly secured on shell 81.Optionally, the second installation base 811 is circular ring shape.
Optionally, second is equipped between the inner sidewall of second pipe connector 200 and the lateral wall of the second installation base 811
Sealing ring 40, second sealing ring 40 is for preventing water from the outside of shell 81 by first pipe connector 100 and the second peace
The gap filled between boss 811 flows into shell 81, and then avoids the signal acquiring board 4 in shell 81, control panel 6 etc. and meet water
Short circuit, and the other component avoided in shell 81 is damaged by water.Optionally, referring to Figure 14, the outside of the second installation base 811
Wall is equipped with mounting groove 8111, and the second sealing ring 40 is accommodated in the mounting groove 8111.Second sealing ring 40 can be rubber seal
Circle, can also be the sealing ring of other materials, and the utility model embodiment is not especially limited the material of the second sealing ring 40.
Optionally, the inner sidewall of second pipe connector 200 is equipped with the 4th stage portion 210, the 4th stage portion 210 and second
The end face on the top of installation base 811 abuts, it is ensured that second pipe connector 200 is mountable to the second installation base 811
Position.Further, third sealing element 50 is equipped between the 4th stage portion 210 and the top of the second installation base 811, for preventing
Gap of the water between second pipe connector 200 and the second installation base 811 in pipeline 2 flows into shell 81, and then keeps away
Signal acquiring board 4, control panel 6 in shell 81 etc. is exempted from and has met water short circuit, and has avoided the other component in shell 81 and meet water damage
It is bad.The third sealing element 50 can be rubber seal, can also be the sealing element of other materials, the utility model embodiment is to third
The material of sealing element 50 is not especially limited.
Optionally, shell 81 is equipped with multiple second mounting holes 812, and second pipe connector 200 includes the second mounting portion
220；Second mounting portion 220 is respectively fixedly connected with by threaded fastener with multiple second mounting holes 812, realizes that second pipe connects
Being stably connected between connector 200 and shell 81.Multiple second mounting holes 812 interval setting, so as to from different orientation
Second pipe connector 200 is more stably mounted on shell 81.Wherein, threaded fastener can be screw or bolt.
In addition, the first pipe connector 100 and second pipe connector 200 of the present embodiment can be stainless steelwork, no
The steelwork that becomes rusty is not oxidizable, aoxidizes conduction so as to avoid first pipe connector 100 and second pipe connector 200.If the
One Petrochemical Pipe Joints 100 and second pipe connector 200 are conductive, and the detection benchmark of two electrodes 3 is not then 0 current potential, and with
The passage of time, the detection benchmark of two electrodes 3 is it may also happen that variation, under the detection accuracy for leading to electromagnetic flowmeter 4000
Drop.Certainly, first pipe connector 100 and second pipe connector 200 can also be other not oxidizable material production.
Optionally, first pipe connector 100 and second pipe connector 200 connect with cover board 82 and shell 81 respectively
Passivation Treatment is passed through at the position of touching, prevents first pipe connector 100 and second pipe connector 200 from aoxidizing conduction.
In conjunction with Fig. 1 to Fig. 3, Fig. 8 to Figure 11 and Figure 15, the electromagnetic flowmeter 4000 of the present embodiment further includes plug 300,
The plug 300 is for connecting external power supply, so that electromagnetic flowmeter 4000 is powered on.Optionally, in conjunction with Fig. 1 and Figure 15,
Control panel 6 is equipped with the second electrical connection section 62, and cover board 82 is equipped with interface 825, and the second electrical connection section 62 is housed in interface 825
In, plug 300 and the second electrical connection section 62 are mating in interface 825.
Since two electrodes 3 must be positioned at electromagnetic field two sides, and the signal of two electrodes 3 needs to respectively correspond the letter of side
Number collection plate 4 amplifies and/or noise reduction process, and the signal of two signal acquiring boards 4 acquisition finally needs to be aggregated into control panel 6
Just it is able to achieve processing.Since two signal acquiring boards 4 are also the two sides for being oppositely arranged on bracket 1, therefore one of signal is adopted
Collection plate 4 needs to be connected on control panel 6 by signal wire 9, and since structure limits, signal wire 9 can pass through electromagnetic field, this will lead
Closing conductor loop can be had by sending a telegraph in magnetic field.Again because the electromagnetic field in electromagnetic flowmeter is a kind of alternating magnetic field, conductor loop
If the plane of road composition is not parallel to magnetic direction, will be influenced to generate induced electromotive force and interference measurement by changing magnetic field
Signal, this interference are referred to as differential interference.The presence of differential interference will affect the stabilization of flow velocity signal, reduce measurement accuracy,
Industry lacks effective solution means for a long time, and by manual setting, the methods of software, which is evaded, extraordinary cannot all be solved
This problem.
Most electromagnetic flowmeters is assembled by the mechanical structure of design fine adjustment signal line position in electromagnetic flowmeter at present
Pass through artificial observation differential interference signal, manual fine-tuning mechanical structure, to mitigate interference signal after the completion.This method efficiency
Low, adjustment effect is difficult accurate evaluation, is not suitable for the large-scale use of volume production product.
Manual fine-tuning can only be customized in flowmeter manufacture in small lot and be used, and this scheme is unable to scale volume production, cannot
Guarantee the consistency of product, the validity adjusted cannot be measured with objective indicator；The method that software is evaded is accurate by setting
Sampling time avoids noisy signal time, and this mode can shorten the sampling time of useful signal, for high frequency exciting field
Scape, if cannot effectively inhibit interference that will limit the excitation frequency upper limit, especially for microminiature electromagnetic flowmeter, weak output signal
In the case where, if interference is excessive, signal measurement can be seriously affected.
For this, the utility model embodiment passes through the trend of adjustment signal line, the conductor for as far as possible constituting signal wire
Circuit is reduced in the projected area of electromagnetism field direction, and differential AF panel is mitigated annoyance level in reasonable range, and
Effectively control interindividual variation, it is ensured that the flowmeter difference for assembling completion is smaller.
In conjunction with Fig. 1 and Fig. 9 to Figure 11, electromagnetic flowmeter 4000 may also include signal wire 9, the both ends of the signal wire 9 and two
A signal acquiring board 4 (one of signal acquiring board 4 is also control panel 6) is electrically coupled connection, two spiral shells of the present embodiment respectively
The coaxial setting of spin line circle 51, the arragement direction of signal wire 9 intersects with the axis of two spiral windings 51, also, signal wire 9 bypasses
Setting on the outside of the end of one of coil block 5.Signal wire 9 forms similar " door " font with two signal acquiring boards 4
Structure.
It should be noted that the arragement direction of signal wire 9 refers to signal wire 9 for connecting in the utility model embodiment
The extending direction of two connecting pins of two signal acquiring boards 4.
Structure limit between signal wire 9 and two 4 plates of signal acquiring board of the utility model embodiment by rational design
Position, the conductor circuit for as far as possible constituting signal wire 9 are reduced in the projected area of electromagnetism field direction, can eliminate differential interference to letter
Number influence, improve electromagnetic flowmeter 4000 measurement accuracy, and effectively control interindividual variation, it is ensured that assemble the stream of completion
Meter difference is smaller, keeps 4000 signal conformance of electromagnetic flowmeter more preferable.
Optionally, pipeline 2 is a straight pipeline 2, and the extending direction of the substantially vertical pipeline 2 of signal wire 9 is arranged.Due to spiral
The axis of coil 51 and the extending direction of pipeline 2 are perpendicular, therefore the central axis of signal wire 9 and the axis of spiral winding 51 are also
It is orthogonal, the point that is projected as of the conductor circuit that signal wire 9 is constituted in electromagnetism field direction, thus this structure design side
The conductor circuit that formula enables to signal wire 9 to constitute is minimum in the projected area of electromagnetism field direction, to eliminate to the maximum extent
Differential interferes the influence to signal, improves the measurement accuracy of electromagnetic flowmeter 4000.It is appreciated that signal wire 9 and pipeline 2 prolong
Stretching the substantially vertical angle referred between signal wire 9 and the extending direction of pipeline 2 in direction is 90 ° of ± error amounts, i.e., in permission
In error range, it is believed that the extending direction of signal wire 9 and pipeline 2 is substantially vertical.
Optionally, two coaxial settings of electrode 3, the central axis of the central axis and electrode 3 of signal wire 9 are coplanar with.
Since the central axis of the axis and electrode 3 of spiral winding 51 is perpendicular, therefore the central axis of signal wire 9 and spiral winding 51
Axis is also orthogonal, the point that is projected as of the conductor circuit that signal wire 9 is constituted in electromagnetism field direction, thus this knot
The conductor circuit that structure design method enables to signal wire 9 to constitute is minimum in the projected area of electromagnetism field direction, thus maximum limit
Influence of the differential interference to signal is eliminated on degree ground, improves the measurement accuracy of electromagnetic flowmeter 4000.
Optionally, signal wire 9 has predetermined width and preset length, and the width direction of signal wire 9 is parallel to pipeline 2
Extending direction, the layout type is it is also possible that the axis of the central axis and spiral winding 51 of signal wire 9 is mutually perpendicular to, and most
Influence of the differential interference to signal is eliminated to limits, the measurement accuracy of electromagnetic flowmeter 4000 is improved.It should be noted that this
In utility model embodiment, the width of signal wire 9 refers to signal wire 9 perpendicular to the width of the arragement direction of the signal wire 9.Its
In, predetermined width can be determined according to the signal number between two signal acquiring boards 4.
The shape of signal wire 9 can design as needed, for increase structure compactedness, to reduce electromagnetic flowmeter 4000
Volume, optionally, signal wire 9 are laminated structure, also, signal wire 9 is basically parallel to the side wall setting of bracket 1.
In addition, in some embodiments, bracket 1 be it is rectangular, signal wire 9 is arranged along the axis of symmetry of the side wall of bracket 1, really
The arragement direction for protecting signal wire 9 intersects with the axis of two spiral windings 51 as far as possible, to eliminate as much as differential interference to letter
Number influence.
In conjunction with Fig. 9 to Figure 11, the signal wire 9 of the present embodiment can be set to the side of third side wall or the 4th side wall, as far as possible
Guarantee that the arragement direction of signal wire 9 intersects with the axis of two spiral windings 51.Optionally, the middle part of signal wire 9 and third side
The surface of wall or the 4th side wall is substantially parallel, it is ensured that signal wire 9 with the axis of spiral winding 51 be it is vertical, eliminate as much as micro-
Divide influence of the interference to signal, improves the measurement accuracy of electromagnetic flowmeter 4000.It is appreciated that middle part and the third of signal wire 9
The surface of side wall or the 4th side wall is substantially parallel refer to it is complete at the middle part of signal wire 9 and the surface of third side wall or the 4th side wall
In parallel or the surface less parallel of the middle part of signal wire 9 and third side wall or the 4th side wall.
In some embodiments, between signal wire 9 and third side wall or the 4th side wall exist interval, increase signal wire 9 with
The spacing between coil block 5 in third side wall or the 4th side wall, to reduce signal wire 9 when transmitting signal to electromagnetic field
Generate interference.Further, spacer is equipped between coil mounting plate 52 and signal wire 9, spacer is for making signal wire 9 and line
It encloses and there is interval between fixed plate 52, it is ensured that the spacing between coil block 5 in signal wire 9 and third side wall or the 4th side wall
It is stabilized.Spacer can be made of hard material, can also be made of flexible material.Optionally, spacer is by capableing of deformation
Material is made, and prevents signal wire 9 from wearing, and extends the service life of signal wire 9.Spacer can be foam part or rubber parts, can also
For other flexible pieces.
The implementation that signal wire 9 is connect with two signal acquiring boards 4 can select as needed, for example, in some implementations
In example, the both ends of signal wire 9 are detachably connected with corresponding signal acquiring board 4 by electric connector realize two signals respectively
Collection plate 4 is electrically coupled connection.
In further embodiments, one end of signal wire 9 and one of signal acquiring board 4, which are integrally formed, designs, signal
The other end of line 9 is equipped with electric connector, for being detachably connected with the electric connector of another signal acquiring board 4, signal
Line 9 is not easy to lose, and such design, will not cause to perplex to the installation of signal acquiring board 4, and alleviate electromagnetic flowmeter
4000 weight.It is understood that the electric connector of the electric connector of signal wire 9 and signal acquiring board 4 is mutually matched
Male connector and female, the male connector and female cooperation can be realized signal wire 9 and connect with being electrically coupled for signal acquiring board 4.
Further alternative, the both ends of signal wire 9 are connect with the center of the side of two signal acquiring boards 4 respectively,
So that it is guaranteed that the axis of two spiral windings 51 passes through the signal wire 9.
The signal wire 9 of the present embodiment can be FPC line, and FPC line facilitates bending, so as to more easily connect opposite set
Set the signal acquiring board 4 in 1 two sides of bracket.It is appreciated that signal wire 9 can also be other kinds of conducting wire.
It is understood that the layout type of signal wire 9 can be combined with each other in above-described embodiment.
In addition, two signal acquiring boards 4 realize that signal passes by signal circuit plate overlap joint in an alternative embodiment
Defeated, two signal acquiring boards 4 form similar " door " character form structure with signal transmission board, to eliminate differential interference to signal
Influence, improve electromagnetic flowmeter 4000 measurement accuracy.
It is noted that the electromagnetic flowmeter 4000 of above-described embodiment can be applicable to plant protection drone or other with liquid
In the equipment in body channel.
Referring to Figure 16, the utility model embodiment also provides a kind of plant protection drone, which may include rack
1000, the spray assembly 2000 that is mounted in rack 1000, the medicine-chest 3000 being mounted in rack 1000 and above-described embodiment
Spray the electromagnetic flowmeter 4000 of flow, wherein electromagnetic flowmeter 4000 is used for real-time detection spray assembly 2000, Electromagnetic Flow
The structure and working principle of meter 4000 can be found in the description of above-described embodiment, and details are not described herein again.
In the present embodiment, one of open end of the pipeline 2 of electromagnetic flowmeter 4000 passes through diversion pipe and sprinkling group
Part 2000 is connected, and another open end of pipeline 2 is connected by diversion pipe with medicine-chest 3000.Specifically, wherein the one of pipeline 2
A open end connects diversion pipe by first pipe connector 100 and is connected to spray assembly 2000, another opening of pipeline 2
End connects diversion pipe by second pipe connector 200 and is connected to medicine-chest 3000.
The electromagnetic flowmeter 4000 of the present embodiment is small in size, light-weight, by the electromagnetic flowmeter 4000 apply plant protection without
On man-machine, it will not influence the installation of plant protection drone other structures, and biggish weight bearing will not be brought to plant protection drone, mention
The high cruising ability of plant protection drone.
Rack 1000 may include fuselage 1100 and the foot prop 1200 for being connected to 1100 two sides of the bottom of fuselage.Further, machine
Frame 1000 may also include the horn 1300 for being connected to 1100 two sides of fuselage.The spray assembly 2000 of the present embodiment includes at least spray
Head, optionally, spray assembly 2000 are mounted on the one end of horn 1300 far from fuselage 1100.Optionally, plant protection drone is more
Rotor wing unmanned aerial vehicle, including propeller, propeller are set to the one end of horn 1300 far from fuselage 1100, and spray assembly 2000 is located at spiral shell
It revolves below paddle.Optionally, medicine-chest 3000 is mounted on 1100 bottom of fuselage, and is located between two foot props 1200.Optionally, electromagnetism
Flowmeter 4000 is set to the water outlet of medicine-chest 3000.
In the present embodiment, control panel 6 is sent to plant after getting the sprinkling flow of spray assembly 2000, by sprinkling flow
The flight controller for protecting unmanned plane, by the spray flow of sprinkling flow and actual demand that flight controller is sent according to control panel 6
Amount controls the water yield of medicine-chest 3000.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (15)
1. a kind of electromagnetic flowmeter, which is characterized in that the electromagnetic flowmeter includes:
Shell, the shell have accommodation space；
Bracket, the bracket are mounted in the accommodation space；
Pipeline, the pipeline is set to the bracket, and two open ends of the pipeline are exposed outside the bracket；
Two electrodes can be with stream after the test side of two electrodes is each passed through the side wall of the bracket and the pipeline
It is in contact through the liquid in the pipeline, and the test side of two electrodes is oppositely arranged；
Two signal acquiring boards, two signal acquiring boards are correspondingly arranged at the same of the bracket with two electrodes
Side, the signal acquiring board are used to acquire the signal of corresponding lateral electrode；With
Two coil blocks, the opposite other two sides for being set to the bracket of two coil blocks, for generating electromagnetic field；
Wherein, at least one described signal acquiring board is equipped with earth jack, and the electromagnetic flowmeter further includes ground connections,
The ground connections pass through the inner sidewall that the earth jack is fixed on the shell, so that the earthing of casing.
2. electromagnetic flowmeter according to claim 1, which is characterized in that the shell includes shell and cover board, the shell
The side of body is equipped with opening, and the cover board sets the opening for covering, and contacts with the housing conductive, the pipeline its
In an open end stretched out from the side side wall of the relatively described opening of the shell, another open end of the pipeline is described in
Cover board stretches out；
One of signal acquiring board is disposed adjacent with the cover board, and the earth jack is set to adjacent with the cover board and is arranged
Signal acquiring board on, the ground connections pass through the earth jack be fixed on the cover board so that the cover board and
The frame ground.
3. electromagnetic flowmeter according to claim 2, which is characterized in that the electromagnetic flowmeter further includes control panel, institute
It states control panel and is electrically coupled respectively with two signal acquiring boards and is connect, the control panel is used for according to two signal acquisitions
The signal of plate acquisition, obtains the flow and/or rate for flowing through the liquid of the pipeline；
The control panel and one of signal acquiring board are integrally disposed on same circuit board.
4. electromagnetic flowmeter according to claim 2 or 3, which is characterized in that side wall of the cover board towards the opening
Equipped with ground connection protrusion, the ground connections are detachably connected after passing through the earth jack with the ground connection protrusion.
5. electromagnetic flowmeter according to claim 2, which is characterized in that the junction of the shell and the cover board is equipped with
First seal, for preventing water from flowing into the shell from the gap between the opening periphery of the shell and the cover board.
6. electromagnetic flowmeter according to claim 2, which is characterized in that the electromagnetic flowmeter further includes that first pipe connects
Connector and second pipe connector, the first pipe connector are connected with the open end that the pipeline stretches out the cover board,
The second pipe connector is connected with the open end that the pipeline stretches out the shell；
Also, the first pipe connector is fixedly connected with the cover board, and the second pipe connector and the shell are solid
Fixed connection.
7. electromagnetic flowmeter according to claim 6, which is characterized in that the cover board is equipped with the first installation base, institute
The first installation base is stated equipped with the second through-hole, second through-hole is connected to the open end of the pipeline；
The first pipe connector is set on first installation base.
8. electromagnetic flowmeter according to claim 7, which is characterized in that the inner sidewall of the first pipe connector is equipped with
Third stage portion, the third stage portion are abutted with the end face on the top of first installation base.
9. electromagnetic flowmeter according to claim 8, which is characterized in that the third stage portion and first installation are convex
Second seal is equipped between the end face of open end of the platform far from the pipeline, for preventing the water in the pipeline from described the
Gap between one Petrochemical Pipe Joints and first installation base flows into the shell.
10. electromagnetic flowmeter according to claim 6 or 7, which is characterized in that it is convex that the shell is equipped with the second installation
Platform, second installation base are equipped with third through-hole；
The second pipe connector is set on second installation base.
11. electromagnetic flowmeter according to claim 10, which is characterized in that the inner sidewall of the second pipe connector with
The second sealing ring is equipped between the lateral wall of second installation base, for preventing described in external process of the water from the shell
Gap between first pipe connector and second installation base flows into the shell.
12. electromagnetic flowmeter according to claim 10, which is characterized in that the inner sidewall of the second pipe connector is set
There is the 4th stage portion, the 4th stage portion is abutted with the end face on the top of second installation base.
13. electromagnetic flowmeter according to claim 12, which is characterized in that the 4th stage portion and second installation
Between the top of boss be equipped with third sealing element, for prevent the water in the pipeline from the second pipe connector with it is described
Gap between second installation base flows into the shell.
14. electromagnetic flowmeter according to claim 1, which is characterized in that the ground connections are threaded fastener.
15. a kind of plant protection drone, which is characterized in that the plant protection drone includes:
Rack；
Spray assembly is mounted on the rack；
Medicine-chest is mounted on the rack；With
The described in any item electromagnetic flowmeters of claim 1 to 14, the electromagnetic flowmeter is for sprinkling group described in real-time detection
The sprinkling flow of part, and one of open end of the pipeline of the electromagnetic flowmeter passes through diversion pipe and the spray assembly
It is connected, another open end is connected by diversion pipe with the medicine-chest.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994562.2U CN209085687U (en) | 2018-11-29 | 2018-11-29 | Electromagnetic flowmeter and plant protection drone with the electromagnetic flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994562.2U CN209085687U (en) | 2018-11-29 | 2018-11-29 | Electromagnetic flowmeter and plant protection drone with the electromagnetic flowmeter |
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| CN209085687U true CN209085687U (en) | 2019-07-09 |
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| CN201821994562.2U Expired - Fee Related CN209085687U (en) | 2018-11-29 | 2018-11-29 | Electromagnetic flowmeter and plant protection drone with the electromagnetic flowmeter |
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| CN (1) | CN209085687U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111279159A (en) * | 2018-11-29 | 2020-06-12 | 深圳市大疆创新科技有限公司 | Electromagnetic flow meter and plant protection unmanned aerial vehicle who has this electromagnetic flow meter |
| WO2021051273A1 (en) * | 2019-09-17 | 2021-03-25 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, spraying apparatus and movable platform |
| WO2021087705A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, spraying apparatus, and movable platform |
| CN113490838A (en) * | 2020-04-03 | 2021-10-08 | 深圳市大疆创新科技有限公司 | Flowmeter, flowmeter assembly and movable platform |
-
2018
- 2018-11-29 CN CN201821994562.2U patent/CN209085687U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111279159A (en) * | 2018-11-29 | 2020-06-12 | 深圳市大疆创新科技有限公司 | Electromagnetic flow meter and plant protection unmanned aerial vehicle who has this electromagnetic flow meter |
| WO2021051273A1 (en) * | 2019-09-17 | 2021-03-25 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, spraying apparatus and movable platform |
| WO2021087705A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, spraying apparatus, and movable platform |
| CN113490838A (en) * | 2020-04-03 | 2021-10-08 | 深圳市大疆创新科技有限公司 | Flowmeter, flowmeter assembly and movable platform |
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