CN206054869U - A kind of micro-flow valve - Google Patents
A kind of micro-flow valve Download PDFInfo
- Publication number
- CN206054869U CN206054869U CN201621048828.5U CN201621048828U CN206054869U CN 206054869 U CN206054869 U CN 206054869U CN 201621048828 U CN201621048828 U CN 201621048828U CN 206054869 U CN206054869 U CN 206054869U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- valve rod
- bar portion
- import
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This utility model is related to a kind of micro-flow valve, including the enlarger of valve body, protective cover, valve rod and driving valve rod movement, and the end of valve body is provided with first import and export, side wall and is provided with second import and export；Protective cover is socketed with valve body；Valve rod can be moved along the axis of valve body, and one end of valve rod is stretched in valve body, the other end is located in protective cover, and valve rod includes the first bar portion and the second bar portion, the diameter of the diameter of the first bar portion less than the second bar portion；Enlarger drives the valve rod to move along the axis of the valve body; make the first bar portion and the second bar portion difference close/open first import and export and second import and export; enlarger is arranged in the protective cover; including rhombus flexible hinge, the piezoelectric ceramics being fixed on inside rhombus flexible hinge; the two ends of piezoelectric ceramics corresponding to symmetrical two summits of rhombus flexible hinge, in two other summit of rhombus flexible hinge is connected with valve rod, one be connected with protective cover by contiguous block.
Description
Technical field
This utility model is related to a kind of control valve, more particularly to a kind of micro-flow valve.
Background technology
Piezoelectricity micro pump is an important directions of MEMS research fields, and used as the driving source of microfluid system, it is micro-
The important symbol of fluid system level of development.Piezoelectricity micro pump is widely used to the micro conveying of medicine, biological engineering, milligram ammonia
Credit analysis, printing ink array, micro liquid or the micro injection of gas dispensing, fuel, molecular recognition, cell separation, disease
The science skills such as diagnosis, drug screening, environmental monitoring, integrated electronics cooling, the lubrication of micro-component, the propulsion of microsatellite
Art field.
Piezoelectricity micro pump is kind of a novel fluid driver, and it does not need additional drives motor, but using piezoelectric ceramics
Inverse piezoelectric effect is deformed piezoelectric vibrator, then the volume change for producing pump chamber by deformation realizes fluid output or using pressure
Electric tachometer indicator produce fluctuation come transmit liquid due to piezoelectric pump has not available for conventional pump the characteristics of.At present, existing piezoelectric micromotor
Amount pump silicon thin film is frangible, and reliability is not high, service life is short, and whole machine manufacture difficulty is big, high processing costs.
In view of above-mentioned defect, the design people, positive research and innovation in addition, to founding a kind of miniflow of new structure
Amount valve so as to more the value in industry.
Utility model content
To solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of simple structure, by piezoelectric ceramics
Tension change valve body volume size with open or relation valve body micro-flow valve.
Micro-flow valve of the present utility model, including
- valve body, the end of the valve body are provided with first import and export, side wall and are provided with second import and export；
- protective cover, the protective cover are socketed with the valve body；
- valve rod, can move along the axis of the valve body, and one end of the valve rod is stretched in the valve body, other end position
In the protective cover, the valve rod includes the first bar portion and the second bar portion, and the diameter of first bar portion is less than described second
The diameter of bar portion；
- enlarger, drives the valve rod to move along the axis of the valve body, makes first bar portion and the second bar part
First import and export and second import and export described in other close/open, the enlarger are arranged in the protective cover, including rhombus
Flexible hinge, the piezoelectric ceramics being fixed on inside the rhombus flexible hinge, the two ends of the piezoelectric ceramics correspond to the Pedicellus et Pericarpium Trapae
Two symmetrical summits of shape flexible hinge, in two other summit of the rhombus flexible hinge are connected with the valve rod
Connect, one be connected with the protective cover by contiguous block.
Further, the fluid sealant with valve rod socket is additionally provided with the valve body and valve rod junction in the valve body
Circle.
Further, the valve body is outer is also associated with the pressure with valve rod socket in the valve body and valve rod junction
Plate.
Further, also including two connection protective covers and valve body, the support to support the contiguous block.
Further, the contiguous block is provided with some installing holes.
By such scheme, this utility model at least has advantages below：
1st, by arranging enlarger, amplification quantity can be 3-5 times of piezoelectric ceramics variable quantity, be effectively improved motion model
The amplification enclosed, so as to available valve rod replaces silicon thin film, substantially increases reliability, and can avoid other enlarger institutes
The cumulative error brought and angular error；
2nd, simple structure, easy to process, greatly reduces processing cost.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of description, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate this utility model, but is not limited to scope of the present utility model.
Referring to Fig. 1, a kind of micro-flow valve described in one preferred embodiment of this utility model, including valve body 10, protective cover 20,
Valve rod and the enlarger of driving valve rod movement.The end of valve body 10 is provided with first import and export 11, side wall and is provided with second to be entered
Outlet 12；Protective cover 20 is socketed with valve body 10；One end of valve rod is stretched in valve body 10, the other end is located in protective cover 20, and energy
Enough axis along valve body 10 are moved.In valve rod 10 moving process of relative valve body, change the volume that liquid is accommodated in valve body 10, from
And liquid is flowed into from first import and export 11 and flow out in valve body 10, from second import and export 12, or valve is flowed into from second import and export 12
In body 10, flow out from first import and export 11.In order that valve rod is in moving process, can be by first import and export 11 and the second turnover
Mouth 12 is opened or closed, and valve rod of the present utility model includes the first bar portion 31 and the second bar portion 32, and the diameter of the first bar portion 31 is little
In the diameter of the second bar portion 32, thus, when valve rod is moved towards the direction of first import and export 11, the first bar portion 31 of valve rod with
First import and export 11 offsets, the outer wall of the second bar portion 32 of valve rod and second import and export 12 offset, so as to by first import and export 11
Close with second import and export 12, prevent liquid flowing；When valve rod is moved towards the direction away from first import and export 11, the of valve rod
One bar portion 31 is left the outer wall of the second bar portion 32 of first import and export 11, valve rod and leaves second import and export 12, so as to first is entered
Outlet 11 and second import and export 12 are opened, and liquid is flowed into from first import and export 11 and are flowed out in valve body 10, from second import and export 12,
Or flow in valve body 10 from second import and export 12, flow out from first import and export 11.Enlarger drives valve rod along the axle of valve body 10
Line is moved, and makes the first bar portion 31 and the difference close/open of the second bar portion 32 first import and export 11 and second import and export 12.Enlarger
Structure is arranged in protective cover 20, including rhombus flexible hinge 41, the piezoelectric ceramics being fixed on inside rhombus flexible hinge 41 42, pressure
The two ends of electroceramics 42 are corresponding to two symmetrical summits of rhombus flexible hinge 41, two other summit of rhombus flexible hinge 41
In one be connected with valve rod, one be connected with protective cover 20 by contiguous block 43.
This utility model is amplified using triangle or amplification principle of buckling, in piezoelectric ceramics by arranging rhombus flexible hinge
Miniature deformation under, moved with the deformation quantity of several times with ovable valve stem by rhombus flexible hinge, so as to can easily realize valve body
10 open and close.
To prevent valve rod in moving process, the liquid in valve body 10 is spilt from valve body 10 with valve rod junction, this practicality
It is new to be additionally provided with the O-ring seal 50 with valve rod socket in valve body 10 and valve rod junction in valve body 10, specifically with valve rod
Second bar portion 32 is socketed.
To avoid valve body 10 from moving with valve rod, this utility model is also connected with valve rod junction in valve body 10 outside valve body 10
There is the pressing plate 60 with valve rod socket.
To make protective cover 20 be socketed with valve body 10, this utility model also including two connection protective covers 20 and valve body 10, with
The support 70 of support contiguous block 43.
For convenience of this utility model is connected on required processing unit (plant), this utility model is provided with some on contiguous block 43
Installing hole.
The above is only preferred implementation of the present utility model, is not limited to this utility model, it is noted that
For those skilled in the art, on the premise of without departing from this utility model know-why, can also do
Go out some improvement and modification, these improve and modification also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of micro-flow valve, it is characterised in that：Including
- valve body, the end of the valve body are provided with first import and export, side wall and are provided with second import and export；
- protective cover, the protective cover are socketed with the valve body；
- valve rod, can move along the axis of the valve body, and one end of the valve rod is stretched in the valve body, the other end is located at institute
State in protective cover, the valve rod includes the first bar portion and the second bar portion, the diameter of first bar portion is less than second bar portion
Diameter；
- enlarger, drives the valve rod to move along the axis of the valve body, first bar portion and the second bar portion is closed respectively
The first import and export and second import and export are closed/open, the enlarger is arranged in the protective cover, it is flexible including rhombus
Hinge, the piezoelectric ceramics being fixed on inside the rhombus flexible hinge, the two ends of the piezoelectric ceramics are soft corresponding to the rhombus
Property two symmetrical summits of hinge, in two other summit of the rhombus flexible hinge is connected with the valve rod, one
It is individual to be connected with the protective cover by contiguous block.
2. micro-flow valve according to claim 1, it is characterised in that：In the valve body and valve rod junction in the valve body
It is additionally provided with the O-ring seal with valve rod socket.
3. micro-flow valve according to claim 2, it is characterised in that：In the valve body and valve rod junction outside the valve body
It is also associated with the pressing plate with valve rod socket.
4. micro-flow valve according to claim 1, it is characterised in that：Also including two connection protective covers and valve body, with support
The support of the contiguous block.
5. micro-flow valve according to claim 4, it is characterised in that：The contiguous block is provided with some installing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048828.5U CN206054869U (en) | 2016-09-12 | 2016-09-12 | A kind of micro-flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048828.5U CN206054869U (en) | 2016-09-12 | 2016-09-12 | A kind of micro-flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054869U true CN206054869U (en) | 2017-03-29 |
Family
ID=58370343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621048828.5U Expired - Fee Related CN206054869U (en) | 2016-09-12 | 2016-09-12 | A kind of micro-flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604107A (en) * | 2018-10-15 | 2019-04-12 | 北京派和科技股份有限公司 | The piezo jet valve of symmetrical structure layout |
-
2016
- 2016-09-12 CN CN201621048828.5U patent/CN206054869U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604107A (en) * | 2018-10-15 | 2019-04-12 | 北京派和科技股份有限公司 | The piezo jet valve of symmetrical structure layout |
| CN109604107B (en) * | 2018-10-15 | 2020-10-16 | 北京派和科技股份有限公司 | Piezoelectric injection valve with symmetrical structural layout |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20190912 |