CN208996921U - A kind of floating type cross valve piezoelectric pump - Google Patents
A kind of floating type cross valve piezoelectric pump Download PDFInfo
- Publication number
- CN208996921U CN208996921U CN201821536961.4U CN201821536961U CN208996921U CN 208996921 U CN208996921 U CN 208996921U CN 201821536961 U CN201821536961 U CN 201821536961U CN 208996921 U CN208996921 U CN 208996921U
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- pump
- cross valve
- cavity
- piezoelectric
- pump body
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Abstract
The utility model discloses a kind of floating type cross valve piezoelectric pump, including upper cover, upper pump casing, lower pump body, piezoelectric patches, cross valve, sealing ring, fastening screw, fastening nut and support rubber ring；The lower pump body opens up an inlet and a liquid outlet, the upper pump casing and lower pump body cooperatively form cavity, in the cavity of left side, four support cylindrical bodies of upper pump casing lower end surface circumference array, in the cavity of right side, circumference array four support cylindrical bodies in lower pump body upper surface respectively install a cross valve between the cavity of the upper end, upper cover is installed in the pump chamber top installation piezoelectric patches and sealing ring, sealing ring upper end；The upper cover, upper pump casing, lower pump body 4 threaded holes of each circumference array, the fixed piezoelectric pump of the cooperation by fastening screw and fastening nut and threaded hole；This pump has many advantages, such as that output flow is big, cross valve opening pressure is small, has a good application prospect in fields such as aerospace, the conveyings of micrometeor drug.
Description
Technical field
The utility model belongs to field of fluid machinery, specially a kind of floating type cross valve piezoelectric pump.
Background technique
It is most of to use passive valve for types such as ball valve, umbrella valve, cantilever valves in passive valve piezoelectric pump；Its work
Principle are as follows: when piezoelectric patches bending deformation, the pump housing is inside and outside to generate pressure difference, under the effect of the pressure, the movement of liquid-driving valve
It realizes its opening and closing, and then realizes the sucking and output of liquid；But to realize that the unlatching of these valves needs in piezoelectric pump
Impact force that will be very big, reduces the flow velocity of liquid, which results in the reduction of the output flow of piezoelectric pump, the decline of efficiency,
Output flow by the structure raising piezoelectric pump for improving valve is always the research emphasis of scientific research personnel.
Utility model content
The technical problems such as output flow in order to solve traditional passive valve piezoelectric pump is few, delivery efficiency is low, the utility model
Patent discloses a kind of floating type cross valve piezoelectric pump.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of floating type cross valve piezoelectric pump, it is special
Sign is: the piezoelectric pump by upper cover (1), sealing ring (2), piezoelectric patches (3), upper pump casing (4), lower pump body (5), cross valve (6),
Fastening screw (7), fastening nut (8) and support rubber ring (9) composition；
Lower pump body (5) lower end sets an inlet (5-1) and a liquid outlet (5-2), the upper pump casing (4) with
The cavity of cross valve (6) is installed at setting two at lower pump body (5) cooperation, a cross valve (6) is assembled in each cavity, matches
Cavity diameter at conjunction is greater than the diameter of inlet cavity, and an annular shape is arranged in the upper side of upper pump casing (4) pump chamber
Clamped end (4-2), is cooperated with the lower end surface of piezoelectric patches (3), and the upper cover (1) and piezoelectric patches (3) pass through sealing ring (2)
It is fixed, described four threaded holes (4-3) of upper pump casing (4) circumference array, 4 screw holes (1-2) of upper cover (1) circumference array,
4 threaded apertures (5-5) of lower pump body (5) circumference array reach solid by the cooperation of fastening screw (7) and fastening nut (8)
The purpose of level pressure electric pump.
Preferably, it is formed in cavity, left side with the upper pump casing cavity (4-5) in inlet (5-1) Yu left side
The upper surface upper pump casing cavity (4-5) four support cylindrical bodies (4-1) of circumference array, by the upper pump of liquid outlet (5-2) and right side
(4-5) is cooperatively formed in cavity in body cavity road, four support cylinders of lower pump body upper surface (5-6) circumference array (5-3), right side
Any object is not arranged in upper pump casing cavity (4-5)；
Preferably, the upper surface (5-6) of the central cavity of the lower pump body is cooperated with cross valve, central cavity
Diameter be greater than cross valve (6) big cylinder diameter；
Preferably, the cross valve (6) is formed by stacking by three cylinders, is up and down big cylinder for two small column centers,
Central big cylinder is centre to lower recess, and gradually convex shape, big cylinder are formed symmetrically by the plane of symmetry of central transverse plane around
Structure；
Preferably, upper pump casing (4) lower end surface opens up lower seal groove cavity (4-4) and lower pump body (5) upper surface opens up
By supporting rubber ring (9) to be sealed between upper seal groove (5-4), prevent gap exudation of the liquid between；
Preferably, the upper cover center opens up a circular aperture (1-1), will be welded on piezoelectric patches (3) by this hole
On conducting wire draw and be attached with power supply.
The utility model has the beneficial effects that
1. cross valve can float up and down under the impact force of very little, and then realize the opening and closing of valve；
2. using cross valve in cavity, so that inlet is reached maximum when liquid enters the pump housing, close left side when liquid out
Cavity prevents liquid from flowing out the pump housing from this chamber；
3. using cross valve in cavity, liquid outlet quantity is made to reach maximum when liquid flows out the pump housing, when feed liquor closes right-side cavity
Road prevents liquid from flowing into the pump housing by this cavity；
4. being sealed between upper pump casing and lower pump body using support rubber ring, gap exudation pump of the liquid between is prevented
Body；
5. the use of sealing ring enables piezoelectric patches to fix；The cooperation of fastening screw and fastening nut consolidates piezoelectric pump
It is fixed.
Detailed description of the invention
Fig. 1 is piezoelectric pump structural schematic diagram.
Fig. 2 is upper pump casing sectional view.
Fig. 3 is upper pump casing structural schematic diagram.
Fig. 4 is lower pump body sectional view.
Fig. 5 is lower pump body structural schematic diagram.
Fig. 6 is cross valve structural schematic diagram.
Fig. 7 is present apparatus perspective view of the explosion.
Fig. 8 is the cross-sectional view of piezoelectric pump.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, with reference to the accompanying drawing to this reality
Be described in detail with novel, the description of this part be only it is exemplary and explanatory, should not be to the protection scope of the utility model
There is any restriction effect.
Please referring to Fig. 1~8, in the utility model embodiment, specific structure includes: a kind of floating type cross valve piezoelectric pump,
The piezoelectric pump is by upper cover (1), sealing ring (2), piezoelectric patches (3), upper pump casing (4), lower pump body (5), cross valve (6), fastening spiral shell
Follow closely (7), fastening nut (8), support rubber ring (9) composition；
Lower pump body (5) lower end sets an inlet (5-1) and a liquid outlet (5-2), the upper pump casing (4) with
The cavity for installing cross valve (6) at lower pump body (5) cooperation at setting two, by the upper pump casing cavity of inlet (5-1) and left side
(4-5) cooperates and is formed, the upper surface left side upper pump casing cavity (4-5) four support cylindrical bodies (4-1) of circumference array, by going out
Liquid mouth (5-2) and the upper pump casing cavity (4-5) on right side cooperatively form in cavity, lower pump body upper surface (5-6) circumference array
Four support cylinders (5-3) do not arrange any object, the central cavity of the lower pump body in right side upper pump casing cavity (4-5)
Upper surface (5-6) cooperated with cross valve, the diameter of central cavity is greater than the diameter of the big cylinder of cross valve (6)；Institute
State cross valve (6) to be formed by stacking by three cylinders, be up and down big cylinder for two small column centers, the big cylinder in center be it is intermediate downwards
Recess, gradually convex shape, big cylinder form symmetrical structure by the plane of symmetry of central transverse plane around；One is assembled in each cavity
A cross valve (6), the cavity diameter at cooperation are greater than the diameter of inlet cavity, the upper side of upper pump casing (4) pump chamber
A clamped end of annular shape (4-2) is arranged in side, is cooperated with the lower end surface of piezoelectric patches (3), the upper cover (1) and piezoelectric patches
(3) it is fixed by sealing ring (2), described four threaded holes (4-3) of upper pump casing (4) circumference array, upper cover (1) Circle-Array
4 screw holes (1-2) of column, 4 threaded apertures (5-5) of lower pump body (5) circumference array, pass through fastening screw (7) and fastening nut
(8) cooperation achievees the purpose that fixed piezoelectric pump；
The upper seal groove that upper pump casing (4) lower end surface opens up lower seal groove cavity (4-4) and lower pump body (5) upper surface opens up
By supporting rubber ring (9) to be sealed between (5-4), prevent gap exudation of the liquid between, the upper cover center opens up
The conducting wire being welded on piezoelectric patches (3) is drawn by this hole and is attached with power supply by one circular aperture (1-1).
The course of work of the utility model can be divided into first course of work and second course of work:
First course of work: piezoelectric patches (3), to upper cover bending deformation, pumps inner volume and increases under the excitation of electric signal, pressure
Power reduces, and the pump housing is inside and outside to generate pressure difference, and under the effect of the pressure, liquid flows into the pump housing, cross valve by inlet (5-1)
(6) it floats under the action of very little impact force, and then is contacted with support cylindrical body (4-1) upwards, make cross valve (6)
Opening degree reaches maximum, and liquid flows into the pump housing by the gap of support side cylindrical body (4-1), also has in liquid outlet at this time
Liquid flows into the pump housing, is floated under the impact force action of cross valve (6) liquid upwards, and with the lower end face contact of upper pump casing and complete
Liquid outlet is closed, liquid cannot flow into the pump housing by this cavity；
Second course of work: piezoelectric patches (3), to pump housing bending deformation, pumps inner volume and reduces under the excitation of electric signal, pressure
Power increases, and the liquid in pump chamber passes through inlet (5-1) and liquid outlet (5-2) under the effect of the pressure while flowing out the pump housing,
Cross valve (6) will contact, cross valve closure outlet plenum under the impact force action of very little with lower pump body upper surface (5-6),
Be at closed state, liquid cannot flow out the pump housing by this valve, cross valve (6) equally under the impact force action of very little to
Lower floating, and contacted with support cylinder (5-3), so that the opening degree of valve is reached maximum, liquid will pass through support cylinder (5-3)
The pump housing is flowed out in the gap of side, by the cycle operation of the both the above course of work, macroscopically realizes the sucking of liquid and defeated
Out.
Specific case used herein is expounded the principles of the present invention and embodiment, and described above
It is adapted to assist in the method and its core concept for understanding the utility model.The above is only the preferred implementation side of the utility model
Formula, it is noted that due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the art
For those of ordinary skill, without departing from the principle of this utility model, several improvement, retouching can also be made or become
Change, above-mentioned technical characteristic can also be combined in the right way；These improve retouching, variation or combination, or without changing
Other occasions are directly applied to by the conception and technical scheme of utility model, are regarded as the protection model of the utility model
It encloses.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of floating type cross valve piezoelectric pump, it is characterised in that: the piezoelectric pump is by upper cover (1), sealing ring (2), piezoelectric patches
(3), upper pump casing (4), lower pump body (5), cross valve (6), fastening screw (7), fastening nut (8), support rubber ring (9) composition；
Lower pump body (5) lower end sets an inlet (5-1) and a liquid outlet (5-2), the upper pump casing (4) and lower pump body (5)
The cavity of cross valve (6) is installed at setting two at cooperation, a cross valve (6), the cavity at cooperation are assembled in each cavity
Diameter is greater than the diameter of inlet cavity, and the clamped end (4- of an annular shape is arranged in the upper side of upper pump casing (4) pump chamber
2), the lower end surface with piezoelectric patches (3) is cooperated, and the upper cover (1) is fixed with piezoelectric patches (3) by sealing ring (2), institute
State four threaded holes (4-3) of upper pump casing (4) circumference array, 4 screw holes (1-2) of upper cover (1) circumference array, lower pump body (5) circle
4 threaded apertures (5-5) of all arrays reach the mesh of fixed piezoelectric pump by the cooperation of fastening screw (7) and fastening nut (8)
's.
2. a kind of floating type cross valve piezoelectric pump according to claim 1, it is characterised in that: by inlet (5-1) and left
The upper pump casing cavity (4-5) of side cooperates and is formed in cavity, the upper surface left side upper pump casing cavity (4-5) four branch of circumference array
Cylinder (4-1) is held round, is cooperatively formed in cavity by the upper pump casing cavity (4-5) on liquid outlet (5-2) and right side, on lower pump body
Four support cylinders (5-3) of end face (5-6) circumference array do not arrange any object in right side upper pump casing cavity (4-5).
3. a kind of floating type cross valve piezoelectric pump according to claim 1, it is characterised in that: the central chamber of the lower pump body
The upper surface (5-6) in road is cooperated with cross valve, and the diameter of central cavity is greater than the diameter of the big cylinder of cross valve (6).
4. a kind of floating type cross valve piezoelectric pump according to claim 1, it is characterised in that: the cross valve (6) is by three
Cylinder is formed by stacking, and is up and down big cylinder for two small column centers, and the big cylinder in center is centre to lower recess, around gradually
Convex shape, big cylinder form symmetrical structure by the plane of symmetry of central transverse plane.
5. a kind of floating type cross valve piezoelectric pump according to claim 1, it is characterised in that: upper pump casing (4) lower end
Pass through support rubber ring between the upper seal groove (5-4) that face opens up lower seal groove cavity (4-4) and lower pump body (5) upper surface opens up
(9) it is sealed, prevents gap exudation of the liquid between.
6. a kind of floating type cross valve piezoelectric pump according to claim 1, it is characterised in that: the upper cover center opens up one
The conducting wire being welded on piezoelectric patches (3) is drawn by this hole and is attached with power supply by a circular aperture (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536961.4U CN208996921U (en) | 2018-09-20 | 2018-09-20 | A kind of floating type cross valve piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536961.4U CN208996921U (en) | 2018-09-20 | 2018-09-20 | A kind of floating type cross valve piezoelectric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996921U true CN208996921U (en) | 2019-06-18 |
Family
ID=66800663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821536961.4U Expired - Fee Related CN208996921U (en) | 2018-09-20 | 2018-09-20 | A kind of floating type cross valve piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996921U (en) |
-
2018
- 2018-09-20 CN CN201821536961.4U patent/CN208996921U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20200920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |