CN205785417U - Vibration type stuff level switch and vibrating device thereof - Google Patents
Vibration type stuff level switch and vibrating device thereof Download PDFInfo
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- CN205785417U CN205785417U CN201620679133.0U CN201620679133U CN205785417U CN 205785417 U CN205785417 U CN 205785417U CN 201620679133 U CN201620679133 U CN 201620679133U CN 205785417 U CN205785417 U CN 205785417U
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Abstract
This application discloses a kind of vibration type stuff level switch and vibrating device thereof.This vibrating device includes piezoelectric element, lower bridge joint block, transition body, diaphragm, compressing member and detent mechanism etc..This piezoelectric element is connected on lower bridge joint block, and the vibration produced is delivered to lower bridge joint block.It is respectively provided with gap between transition body and piezoelectric element and transition body and lower bridge joint block, and by a supporter, lower bridge joint block is supported and positions.Diaphragm fixed cover is located on transition body, and one end of compressing member is fixed with lower bridge joint block, and the other end pushes against diaphragm, and the vibration of lower bridge joint block is transferred to diaphragm.Detent mechanism abuts the upper end of piezoelectric element, is pressed on lower bridge joint block by piezoelectric element by abutting.Transition body and piezoelectric element, all there is gap between lower bridge joint block and compressing member, the transmission thus without the vibration producing piezoelectric element and vibration produces impact, thus ensures reliability and the life-span of vibrating device.
Description
Technical field
The application relates to vibration type stuff level switch, especially relates to the vibrating device in vibration type stuff level switch.
Background technology
In the industrial and agricultural production of modernization, often will be to granule or powders such as plastic grains, coal dust, corn, flour
The storage capacity of solid be controlled, generally require the thing position accurate location detecting them.
Vibration type stuff level switch is that piezoelectric element is formed highly sensitive vibration type level switch with mechanical resonance structure.
It is by control circuit output voltage signal, and excitation piezoelectric element drives the mechanical organ matched to produce resonance, and is delivered to inspection
Probing head.When tested material covers the detection probe in vibration, the damping action produced due to material so that it is Oscillation Amplitude
Drastically reduce, by detection receptor, the information that this mechanical vibration change is converted to the signal of telecommunication, and passes to control electricity
Road, it is achieved measurement and the control to material position.This class vibration type stuff level switch is applicable to control and detect feed bin or appearance more
Solid particle in device or powder material, be particularly well-suited to be easily formed the thing that bridging, the material of material folding and mobility are poor
Matter.
Existing a kind of vibration type stuff level switch uses two-tube vibrational structure, vibrates under the excitation of piezoelectric ceramic piece,
And passing to diaphragm through a tie rod, diaphragm transfers vibrations to vibrate outer tube, at a resonant condition, in vibration outer tube and vibration
Pipe resonates；When vibrating outer tube and being damped by material, load becomes big, cannot produce resonance with vibration inner tube, and vibration stops
Only, piezoelectric element detects this change, is converted to control circuit output, detects as with presence or absence of material.
But this prior art exists following defect:
In existing two-tube vibrational structure, driving pressure electroceramics shrinks expansion by inverse piezoelectric effect and produces vibration, shakes
Move and be delivered on diaphragm and vibration outer tube by tension, bridge joint block and compressing member, so that vibration outer tube starting of oscillation, outside vibration
The vibration of pipe causes vibrating inner tube and empathizes vibration, and when two-tube free running frequency is consistent, two-tube generation resonance.When
Vibration is when transmitting by tie rod, due to very close to each other between tie rod and piezoelectric element or gap is the least, is easily caused
Vibration friction, vibration friction will cause the loss of vibrational energy, and the loss of vibrational energy can make to vibrate faint or cannot
Vibration, will have influence on vibration characteristics, thus affect reliability and the life-span of vibrating device.
Summary of the invention
The application provides a kind of novel vibrating device for vibration type stuff level switch and uses this vibrating device
Vibration type stuff level switch.
The vibrating device that the application provides, including:
Piezoelectric element, for producing and detection vibration；
Lower bridge joint block, described piezoelectric element is connected on lower bridge joint block, and the vibration produced is delivered to lower bridge joint block；
Transition body, is respectively provided with gap between described transition body and piezoelectric element and transition body and lower bridge joint block, and passes through
Lower bridge joint block is supported and positions by one supporter；
Diaphragm, described diaphragm fixed cover is located on transition body；
Compressing member, has gap, and one end of described compressing member is solid with lower bridge joint block between described compressing member and transition body
Fixed, the other end pushes against diaphragm, transmits these vibrations to diaphragm；
Detent mechanism, described detent mechanism is connected on transition body, and abuts piezoelectric element for detecting one end of vibration,
By abutting, piezoelectric element is pressed on lower bridge joint block；
Vibration outer tube, described vibration outer tube is fixedly connected with diaphragm；
And vibration inner tube, described vibration inner tube is fixedly connected with transition body.
As the further improvement of described vibrating device, described lower bridge joint block is provided with the first groove, described transition body sets
Have the second groove, described supporter to be arranged on the first groove and in cavity that the second groove surrounds, described supporter at least with
The part of the first groove and the second groove fit has spheric outer wall.
As the further improvement of described vibrating device, the groove footpath of described first groove and the second groove is equal, and described the
The degree of depth of two grooves more than the degree of depth of the first groove, makes described supporter be positioned at being partially larger than it to be positioned at first recessed of the second groove
The part of groove.
As the further improvement of described vibrating device, described lower bridge joint block has boss towards the side of piezoelectric element,
Described piezoelectric element has hole, location towards the side of boss, and described boss coordinates with hole, location.
As the further improvement of described vibrating device, described transition body has a through hole, and described lower bridge joint block is positioned at logical
The top in hole, described diaphragm is arranged on the lower section of through hole, and described compressing member compresses diaphragm, described compressing member and through hole through through hole
Hole wall between there is gap.
As the further improvement of described vibrating device, described detent mechanism includes bridge joint block, described upper bridge joint block quilt
Compress the upper end being connected to piezoelectric element.
As the further improvement of described vibrating device, described transition body includes disk body and extends shape from disk body side projection
The upper arm become, described detent mechanism also includes that fixture, one end of described upper bridge joint block are horizontally through the through hole of upper arm and are arranged on
In upper arm, described fixture passes the mating holes of the upper bridge joint block other end from top to bottom and is locked on disk body.
As the further improvement of described vibrating device, described detent mechanism also includes two fixtures being arranged side by side,
Described fixture is each passed through the two ends of bridge joint block and is locked on transition body.
As the further improvement of described vibrating device, described transition body includes disk body and prolongs from disk body both sides projection respectively
Stretching two upper arms of formation, described detent mechanism includes that bridge joint block and pretension bolt, described upper bridge joint block are transversely mounted on two
In individual upper arm, and having screwed hole on upper bridge joint block, described pretension bolt is screwed onto in screwed hole, the lower end of described pretension bolt
It is pressed against piezoelectric element.
The vibration type stuff level switch that the application provides, including control circuit, also includes the vibration as described in above-mentioned any one
Device, described control circuit is connected with the piezoelectric element in vibrating device.
The application provides the benefit that:
The vibrating device that the application provides, it includes piezoelectric element, lower bridge joint block, transition body, diaphragm, compressing member, location
Mechanism, vibration outer tube and vibration inner tube.This piezoelectric element is connected on lower bridge joint block, and the vibration produced is delivered to lower bridge
Connect block.Gap it is respectively provided with between transition body and piezoelectric element and transition body and lower bridge joint block, and by a supporter to lower bridge
Connect block to be supported and position.Diaphragm fixed cover is located on transition body, has gap, and compressing member between compressing member and transition body
One end fix with lower bridge joint block, the other end pushes against diaphragm, transmits these vibrations to diaphragm.Detent mechanism is connected on transition body,
And abut piezoelectric element for detecting one end of vibration, the vibration of detection is transferred to piezoelectric element and piezoelectric element is pressed on
On lower bridge joint block.Transition body and piezoelectric element, all there is gap between lower bridge joint block and compressing member, thus without to piezoelectric element
The vibration produced and the transmission of vibration produce impact, it is ensured that the reliability of vibrating device and life-span.
Accompanying drawing explanation
Fig. 1 is the sectional view of the first embodiment of vibrating device of the application vibration type stuff level switch；
Fig. 2 is another sectional view of the first embodiment of vibrating device of the application vibration type stuff level switch；
Fig. 3 is the structural representation of the first embodiment of vibrating device of the application vibration type stuff level switch；
Fig. 4 is another visual angle schematic diagram of the first embodiment of vibrating device of the application vibration type stuff level switch；
Fig. 5 is the structural representation of transition body in the first embodiment；
Fig. 6 is the structural representation at another visual angle of transition body shown in Fig. 5；
Fig. 7 is the lower structural representation bridging block in the first embodiment；
Fig. 8 is the lower structural representation bridging another visual angle of block shown in Fig. 7；
Fig. 9 is the upper structural representation bridging block in the first embodiment；
Figure 10 is the sectional view of vibrating device the second embodiment of the application vibration type stuff level switch；
Figure 11 is another sectional view of vibrating device the second embodiment of the application vibration type stuff level switch；
Figure 12 is the structural representation of vibrating device the second embodiment of the application vibration type stuff level switch；
Figure 13 is the structural representation of transition body in the second embodiment；
Figure 14 is the sectional view of the third embodiment of vibrating device of the application vibration type stuff level switch；
Figure 15 is another sectional view of the third embodiment of vibrating device of the application vibration type stuff level switch；
Figure 16 is the structural representation of the third embodiment of vibrating device of the application vibration type stuff level switch；
Figure 17 is the structural representation of transition body in the third embodiment；
Figure 18 is the upper structural representation bridging block in the third embodiment.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention the present invention is described in further detail.The application can be with multiple
Different forms realizes, however it is not limited to the embodiment described by the present embodiment.The purpose of detailed description below is provided
Being easy for present disclosure is become apparent from thorough explanation, wherein the words of the indicating position such as upper and lower, left and right is only pin
To shown structure in respective figure for position.
But, those skilled in the art may be aware that one or more detail describes can be by
Omit, or other method, assembly or material can also be used.In some instances, some embodiments do not describe
Or be not described later in detail.
Additionally, technical characteristic described herein, technical scheme can also be in one or more embodiments arbitrarily to close
Suitable mode combines.For a person skilled in the art, it is easy to understand the method relevant with embodiment provided herein
Step or operation order can also change.Therefore, any order in drawings and Examples is merely illustrative purposes, the most secretly
Show requirement in a certain order, require unless expressly stated according to a certain order.
Herein for parts institute serialization number itself, such as " first ", " second " etc., be only used for distinguishing described object,
Not there is any order or art-recognized meanings.And the application described " connection ", " connection ", if no special instructions, all include direct with
It is indirectly connected with (connection).
Embodiment one:
The present embodiment one provides the vibrating device of a kind of vibration type stuff level switch.
Refer to Fig. 1 to 5, this vibrating device includes:
Piezoelectric element 10, for producing and detection vibration；
Lower bridge joint block 20, this piezoelectric element 10 is connected on lower bridge joint block 20, and the vibration produced is delivered to lower bridge joint
Block 20；
Transition body 30, between being respectively provided with between this transition body 30 and piezoelectric element 10 and transition body 30 and lower bridge joint block 20
Gap, and by a supporter 90, lower bridge joint block 20 is supported and positions；
Diaphragm 40, this diaphragm 40 fixed cover is located on transition body 30；
Compressing member 60, has a gap between this compressing member 60 and transition body 30, and one end of this compressing member 60 and lower bridge joint
Block 20 is fixed, and the other end pushes against diaphragm 40, and the vibration of lower bridge joint block 20 is transferred to diaphragm 40；
Detent mechanism (in Fig. 1-4,51,52 is the tool of a kind of embodiment of detent mechanism), this detent mechanism was connected to
Cross on body 30, and abut the upper end of piezoelectric element 10, by abutting, piezoelectric element 10 is pressed on lower bridge joint block 20；
Vibration outer tube 70, this vibration outer tube 70 is fixedly connected with diaphragm 40；
And vibration inner tube 80, this vibration inner tube 80 is fixedly connected with transition body 30.
In this vibrating device, all exist between transition body 30 and piezoelectric element 10 and lower bridge joint block 20 and compressing member 60
Gap, the transmission thus without the vibration producing piezoelectric element 10 and vibration produces impact, and vibration transmission is unattenuated, and then keeps away
Exempt from owing to vibration decay causes the change of vibration characteristics.
Meanwhile, this structure not only handling ease, and also production and assembly are convenient such that it is able to and reduce production cost, promote
Production efficiency and economic benefit.
Refer to Fig. 2, piezoelectric element 10 is for producing and detection vibration, and it can include detecting piezoelectric ceramics 12 and driving
Piezoelectric ceramics 11, this detection piezoelectric ceramics 12 can be the most a piece of, and driving pressure electroceramics 11 can have six.
Further, this detent mechanism is used for abutting piezoelectric element 10, is pressed on lower bridge joint block 20 by piezoelectric element 10.
Also transmit these vibrations on the detection piezoelectric ceramics 12 of piezoelectric element 10 simultaneously.
This detent mechanism can include bridge joint block 51, and on this, bridge joint block 51 is compacted is connected to the upper of piezoelectric element 10
End, between piezoelectric element 10 and detent mechanism in addition to upper bridge joint block 51, can reduce contact (except necessary contact) as far as possible
Or do not contact.As for by which kind of structure it is connected to compacted for upper bridge joint block 51 on piezoelectric element 10, then can have a lot
Plant design.
Specifically, refer to Fig. 1 to 6 and 8, in the detent mechanism exemplary construction that the present embodiment is given, this transition body 30 wraps
Include disk body 31 and extend the upper arm 32 formed from disk body 31 side projection.Detent mechanism also includes fixture 52, upper bridge joint block 51
One end be horizontally through the through hole 321 of upper arm 32 and be arranged in upper arm 32, fixture 52 is another through upper bridge joint block 51 from top to bottom
The mating holes 514 of one end is also locked on disk body 31.
This disk body 31 can be discoid, and this upper arm 32 can be similar flat column, and it can be according to one by inner side 322
Determine radian the most recessed so that there is between piezoelectric element 10 and transition body 30 gap, thus dodge out piezoelectric element 10 so that
The transmission of vibration will not decay.This disk body 31 and upper arm 32 can be integral structures, and this structure is so that transition body 30
Good rigidly, firm in structure, make vibration preferably to transmit, so that can realize between piezoelectric element 10 and diaphragm 40 filling
The rigidity coupling divided, and then can ensure that the reliability of material-level measure.
Refer to Fig. 9, on this, bridge joint block 51 then can include that columned cylinder 511 leads to having a up/down perforation
The cuboid 512 in hole 513, and this cylinder 511 is integral type structure with cuboid 512.The top of this upper arm 32 in the face of on
The cylinder 511 of bridge joint block 51 has a manhole 321, and the aperture of manhole 321 is slightly larger than the straight of cylinder 511
Footpath, such structure makes cylinder 511 position through manhole 321 across on piezoelectric element 10.
Using adjustment bolt as fixture 52 in the present embodiment, this adjustment bolt 52 can be adjusted.Refer to figure
9, upper bridge joint block 51 is also provided with the mating holes 514 of a up/down perforation, and this adjustment bolt 52 is from top to bottom through upper bridge joint block 51
Mating holes 514, and be spirally connected locking with transition body 30.
This adjustment bolt 52 can directly be locked on disk body 31, or can also be such as Fig. 1, shown in 5 and 6, and disk body 31 is protruding
Being provided with fixing body 33, form a groove between this fixing body 33 and upper arm 32, lower bridge joint block 20 is arranged on upper arm 32 and installs
In the middle of body 33, and and upper arm 32 and fixing body 33 between constitute gap, adjust bolt 52 and be locked on fixing body 33.
The outside of this upper arm 32 and fixing body 33 all has arc outer wall, and upper arm 32 can with disk body 31 and fixing body 33
Think integral structure.
So that vibration can be tried one's best and is delivered to without loss on diaphragm 40, lower bridge joint block 20 is in fixing body 33 and hangs
Between arm 32, and separate formation gap in the lateral direction with fixing body 33 and upper arm 32.This gap can make fixing body 33 He
Upper arm 32 without directly contacting, thus avoids the caused vibration loss that rubs with lower bridge joint block 20.
Further, in order to make, between transition body 30 and lower bridge joint block 20, there is preferably locating effect, this supporter 90
Can be designed as part and there is spheric outer wall or the spheroid for entirety.Refer to Fig. 2 and Fig. 5 to Fig. 8, lower bridge joint block 20
Being provided with the first groove 24, transition body 30 is provided with the second groove 312, and supporter 90 is arranged on the first groove 24 and the second groove
In 312 cavitys surrounded, supporter 90 at least has outside spheric in the part coordinated with the first groove 24 and the second groove 312
Wall.
This first groove 24 and the second groove 312 can be spherics, and both form a spheroid, and supporter 90 can
Think a ball, by putting into ball 90 in first groove 24 and the second groove 312 disk body 31 and lower bridge joint block 20 are entered
Row preferably location.
The groove footpath of the first groove 24 and the second groove 312 is equal, and the degree of depth of the second groove 312 is deep more than the first groove 24
Degree, makes supporter 90 be positioned at being partially larger than it and being positioned at the part of the first groove 24 of the second groove 312.
Further, this piezoelectric element 10 is that the top of direct and lower bridge joint block 20 abuts.Refer to Fig. 2 and 7, vibration dress
Putting and can also include piezoelectricity insulation sleeve 13, this piezoelectricity insulation sleeve 13 is set in outside piezoelectric element 10, and lower bridge joint block 20 has two
Circular groove 22, piezoelectricity insulation sleeve 13 is set on lower bridge joint block 20 by groove 22, compresses location by groove 22.
Please continue to refer to Fig. 2 and 7, lower bridge joint block 20 has boss 21, piezoelectric element 10 towards the side of piezoelectric element 10
Side towards boss has hole, location, and boss 21 coordinates with hole, location.This boss 21 stretches in circular port, thus plays support
The effect of piezoelectric element 10.
Refer to Fig. 2, transition body 30 has a through hole 311, and lower bridge joint block 20 is positioned at the top of through hole 311, and diaphragm 40 is pacified
Being contained in the lower section of through hole 311, compressing member 60 compresses diaphragm 40 through through hole 311, has between the hole wall of compressing member 60 and through hole 311
There is gap.
Specifically, the top of compressing member 60 is spirally connected with the fixed form employing of lower bridge joint block 20.As in figure 2 it is shown, compressing member
60 are divided into upper, middle and lower.There is in the middle part of this circle boss, and it be top that compressing member 60 is positioned at the part on boss,
Being positioned at the part under boss is bottom, and this top is spirally connected fixing with lower bridge joint block 20.Through hole 311 on this disk body 31 is ladder
Hole shape, the middle part of this compressing member 60 and bottom are stretched in shoulder hole 311, and bottom is then stretched out in shoulder hole 311, props up diaphragm
40。
So that the vibration that piezoelectric element 10 produces can be tried one's best and is delivered to without loss on diaphragm 40, pressure therefore can be made
Tight part 60 with without friction and in the most contactlessly mode is arranged at shoulder hole 311, compressing member 60 be smaller in size than shoulder hole 311
Diameter, i.e. compressing member 60 has gap with the hole wall of shoulder hole 311, and this gap can ensure compressing member 60 and shoulder hole 311
Hole wall contactless, it is to avoid the vibration loss that causes of friction, make vibration preferably to transmit.
Refer to Fig. 2,8, this lower bridge joint block 20 has a screwed hole 23, the spiral shell of the top of compressing member 60 and lower bridge joint block 20
Pit 23 is spirally connected fixing.
Refer to Fig. 1,2, this vibration outer tube 70 be enclosed within vibration inner tube 80 outside, vibration outer tube 70 and vibration inner tube 80 between with
Between centers forms gap at a certain distance.Wherein, vibration inner tube 80 is fixedly connected with the bottom of transition body 30, such as, can be welding
Fixing.This diaphragm 40 is set on transition body 30, and fixes with transition body 30.Vibration outer tube 70 is fixedly connected with diaphragm 40, example
As can also be to be welded and fixed.This vibration inner tube 80 has an inner chamber, and inner chamber has female thread, has one can pass through screw thread in inner chamber
Turn and the mass of movement.
The present embodiment makes to form a spacing between piezoelectric element 10 and adjustment bolt 52 and piezoelectric element 10 and upper arm 32
From gap.The vibration so making piezoelectric element 10 produce can be to transmit in friction free mode, as far as possible as far as possible
Reduce the vibrational energy loss caused because of friction, thus make further to detect relatively reliable, that raising detects accuracy.
In the present embodiment, driving pressure electroceramics 11 shrinks expansion by inverse piezoelectric effect and produces vibration, and vibration is passed through
Detent mechanism, lower bridge joint block 20, compressing member 60 are delivered on diaphragm 40 and vibration outer tube 70, so that vibration outer tube 70
Shaking, the vibration of vibration outer tube 70 causes vibrating inner tube 80 and empathizes vibration, and when two-tube free running frequency is consistent, product
Raw resonance, now Oscillation Amplitude reaches maximum.Correspondingly, in time vibrating outer tube 70 and damped by material, load becomes big, with
Vibration inner tube 80 cannot produce resonance, and vibration stops, and two-tube vibration is further through diaphragm 40, compressing member 60, lower bridge joint block 20 and
Detent mechanism be delivered to detect piezoelectric ceramics 12, make detection piezoelectric ceramics 12 produce detection signal, and detection signal is exported to
Control circuit processes.
Embodiment two:
The present embodiment two provides the vibrating device of the second vibration type stuff level switch.
This vibrating device there are provided another kind of detent mechanism with the difference of embodiment one.
Refer to Figure 10-13, the detent mechanism shown in the present embodiment two includes two fixtures being arranged side by side 52, and this is solid
Locking member 52 is each passed through the two ends of bridge joint block 51a and is locked on transition body 30a.
Specifically, transition body 30a includes disk body 31, and disk body 31 can be circular disk body.It is provided with two on this disk body 31
Individual mounting seat 34, the upper arm in embodiment one, with fixing body, forms a groove, lower bridge between these two mounting seats 34
Connect block 20 to be arranged in this groove, and be respectively provided with gap with two mounting seats 34.
On this, bridge joint block 51a can have two mating holes in left and right, and fixture 52 can also use adjustment bolt equally, should
Two adjust bolt 52 the most from top to bottom by two mating holes of upper bridge joint block 51a, and are locked at screw thread in mounting seat 34
In hole, by being spirally connected, upper bridge joint block 51a is compressed location with piezoelectric element.
Certainly, two adjustment bolts 52 also can directly be screwed on disk body 31.
Embodiment three:
The present embodiment three provides the vibrating device of the third vibration type stuff level switch.
This vibrating device there are provided another kind of detent mechanism with the difference of embodiment one and two.
Refer to Figure 14-18, in the structure shown in the present embodiment three, transition body 30b includes disk body 31 and respectively from disk body
31 both sides projections extend two upper arms 32 formed, and detent mechanism includes bridge joint block 51b and pretension bolt 54, upper bridge joint block
51b is transversely mounted in two upper arms 32, and has screwed hole 511b on upper bridge joint block 51b, and pretension bolt 54 is screwed onto screw thread
In the 511b of hole, the lower end of pretension bolt 54 is pressed against piezoelectric element 10, by piezoelectric element pretension..
Specifically, the side on this upper arm 32 top is a square block groove 323, and the size of this groove 323 is slightly larger than upper bridge
Connect the size of block 51b, by this groove 323, upper bridge joint block 51b is embedded.
Embodiment four
The present embodiment four provides a kind of vibration type stuff level switch, and it includes control circuit, also includes such as any of the above-described enforcement
Vibrating device described in example, control circuit is connected with the piezoelectric element in vibrating device.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this
Bright being embodied as is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of present inventive concept, it is also possible to make some simple deduction or replace.
Claims (10)
1. the vibrating device of a vibration type stuff level switch, it is characterised in that including:
Piezoelectric element, for producing and detection vibration；
Lower bridge joint block, described piezoelectric element is connected on lower bridge joint block, and the vibration produced is delivered to lower bridge joint block；
Transition body, is respectively provided with gap between described transition body and piezoelectric element and transition body and lower bridge joint block, and by one
Lower bridge joint block is supported and positions by support body；
Diaphragm, described diaphragm fixed cover is located on transition body；
Compressing member, has gap between described compressing member and transition body, and one end of described compressing member is fixed, separately with lower bridge joint block
One end pushes against diaphragm, transmits these vibrations to diaphragm；
Detent mechanism, described detent mechanism is connected on transition body, and abuts the upper end of piezoelectric element, by abutting piezoelectricity group
Part is pressed on lower bridge joint block；
Vibration outer tube, described vibration outer tube is fixedly connected with diaphragm；
And vibration inner tube, described vibration inner tube is fixedly connected with transition body.
2. vibrating device as claimed in claim 1, it is characterised in that described lower bridge joint block is provided with the first groove, described transition
Body is provided with the second groove, and in the cavity that described supporter is arranged on the first groove and the second groove surrounds, described supporter is extremely
Few have spheric outer wall in the part with the first groove and the second groove fit.
3. vibrating device as claimed in claim 2, it is characterised in that the groove footpath of described first groove and the second groove is equal,
The degree of depth of described second groove more than the degree of depth of the first groove, makes described supporter be positioned at being partially larger than it and being positioned at of the second groove
The part of the first groove.
4. vibrating device as claimed in claim 1, it is characterised in that described lower bridge joint block has towards the side of piezoelectric element
Boss, described piezoelectric element has hole, location towards the side of boss, and described boss coordinates with hole, location.
5. vibrating device as claimed in claim 1, it is characterised in that described transition body has a through hole, described lower bridge joint block
Being positioned at the top of through hole, described diaphragm is arranged on the lower section of through hole, and described compressing member compresses diaphragm, described compressing member through through hole
And there is between the hole wall of through hole gap.
6. the vibrating device as described in any one of claim 1-5, it is characterised in that described detent mechanism includes bridge joint block,
The described compacted upper end being connected to piezoelectric element of upper bridge joint block.
7. vibrating device as claimed in claim 6, it is characterised in that described transition body includes disk body and from disk body side projection
Extending the upper arm formed, described detent mechanism also includes fixture, and one end of described upper bridge joint block is horizontally through the through hole of upper arm
Being arranged in upper arm, described fixture passes the mating holes of the upper bridge joint block other end from top to bottom and is locked on disk body.
8. vibrating device as claimed in claim 6, it is characterised in that described detent mechanism also include two be arranged side by side consolidate
Locking member, described fixture is each passed through the two ends of bridge joint block and is locked on transition body.
9. the vibrating device as described in any one of claim 1-5, it is characterised in that described transition body include disk body and respectively from
Disk body both sides projection extends two upper arms formed, and described detent mechanism includes bridge joint block and pretension bolt, described upper bridge joint
Block is transversely mounted in two upper arms, and has screwed hole on upper bridge joint block, and described pretension bolt is screwed onto in screwed hole, described
The lower end of pretension bolt is pressed against piezoelectric element.
10. a vibration type stuff level switch, including control circuit, it is characterised in that also include such as any one of claim 1-9 institute
The vibrating device stated, described control circuit is connected with the piezoelectric element in vibrating device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620679133.0U CN205785417U (en) | 2016-06-30 | 2016-06-30 | Vibration type stuff level switch and vibrating device thereof |
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| CN201620679133.0U CN205785417U (en) | 2016-06-30 | 2016-06-30 | Vibration type stuff level switch and vibrating device thereof |
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| CN205785417U true CN205785417U (en) | 2016-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973339A (en) * | 2016-06-30 | 2016-09-28 | 深圳计为自动化技术有限公司 | Vibrating type material level switch and vibrating device thereof |
| CN109960848A (en) * | 2019-01-17 | 2019-07-02 | 哈尔滨工程大学 | It avoids generating the mode preventing collision method to resonate |
-
2016
- 2016-06-30 CN CN201620679133.0U patent/CN205785417U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973339A (en) * | 2016-06-30 | 2016-09-28 | 深圳计为自动化技术有限公司 | Vibrating type material level switch and vibrating device thereof |
| CN105973339B (en) * | 2016-06-30 | 2022-05-10 | 深圳计为自动化技术有限公司 | Vibrating material level switch and vibrating device thereof |
| CN109960848A (en) * | 2019-01-17 | 2019-07-02 | 哈尔滨工程大学 | It avoids generating the mode preventing collision method to resonate |
| CN109960848B (en) * | 2019-01-17 | 2022-05-10 | 哈尔滨工程大学 | Mode avoiding method for avoiding resonance |
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