CN206000713U - A kind of linear valve piezoelectric pump of symmetric helix - Google Patents
A kind of linear valve piezoelectric pump of symmetric helix Download PDFInfo
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- CN206000713U CN206000713U CN201620735637.XU CN201620735637U CN206000713U CN 206000713 U CN206000713 U CN 206000713U CN 201620735637 U CN201620735637 U CN 201620735637U CN 206000713 U CN206000713 U CN 206000713U
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Abstract
The utility model is related to a kind of linear valve piezoelectric pump of symmetric helix, including piezoelectric vibrator（1）, pump cover（2）, valve seat（3）, screw（4）, pump seat（6）, sealing ring（7）, sealing ring（8）, screw（9）, the pump seat（6）Top is provided with pump cover（2）, pump seat（6）Upper end is valve seat（3）, valve seat（3）With pump seat（6）Between be provided with sealing ring（7）, valve seat（3）With pump cover（2）Between be provided with sealing ring（8）, valve seat（3）Top is provided with piezoelectric vibrator（1）, the piezoelectric vibrator（1）Located at valve seat（3）And pump cover（2）Between, the piezoelectric vibrator（1）With pump cover（2）, valve seat（3）And pump seat（6）Between pass through screw（9）It is fixedly connected, in valve seat（3）Inlet and outlet pass through screw（4）It is separately installed with a pair mutually inverted symmetric helix linear check valve (5), simple structure, low cost, can effectively realize the opening and closing of piezoelectric pump.
Description
Technical field
The utility model is related to a kind of linear valve piezoelectric pump of symmetric helix, belongs to field of fluid machinery.
Background technology
Pump is the machinery of trandfer fluid or transmission energy.No matter resonable traditional pump is usually by Motor drive,
By in upper, method for designing or manufacturing technology, very perfect degree has been reached.But limited by operation principle and structure, such as needed
Additional drives motor is wanted, then volume is larger, by electromagnetic interference, wayward tiny flow quantity, thus be difficult to meet current aerospace boat
Its device, robot, automobile, medicine equipment, biological gene engineering, the application demand of micromachine.
Piezoelectric pump is a kind of novel fluid driver.It does not need additional drives motor, but using the inverse of piezoelectric ceramics
Piezo-electric effect is deformed piezoelectric vibrator, then the volume change for producing pump chamber by deformation is realized fluid output or utilizes piezoelectricity
Oscillator produces fluctuation to transmit liquid.
Piezoelectric pump has the characteristics that not available for conventional pump, can be by the driving source part of conventional pump, running part and the pump housing
Three is integrated, can achieve simple structure, small volume, lightweight, consume energy low, noiseless, nothing electromagnetic interference, can be according to applying
Voltage or FREQUENCY CONTROL output tiny flow quantity.The history of invention that to the greatest extent let it be and development only more than 30 year, in above-mentioned field
The application that succeeds.
The species of piezoelectric pump is various, and form is different, different according to different criteria for classification classification.Can divide from the presence or absence of valve body
For having valve piezoelectric pump and Valveless piezoelectric pump；Can be divided into from the type of drive of valve body opening and closing active has valve piezoelectric pump and passive type to have
Valve piezoelectric pump.There is valve piezoelectric pump to be often referred to be separately mounted to the inlet and outlet of pump by a pair mutually inverted check valve, use
Flow direction in control fluid.The opening and closing of the active valve body for having valve piezoelectric pump needs to be controlled with additional driving power supply and control device
The unlatching of valve body processed, increased design, installation and the controlling unit of piezoelectric pump.Passive type has valve piezoelectric pump to refer to valve in piezoelectric pump
The opening and closing of body be the periodically variable pressure of pump chamber in work period by piezoelectric pump opening and closing valve body, so as to realize
The effect of pump.
So far, there is valve piezoelectric pump that a lot of versions have been invented, have been obtained for being widely applied.There is valve piezoelectric pump
The check valve main by controlling stream direction of flow of function realizing, therefore, the structure of check valve has decision to the performance of piezoelectric pump
The impact of property.The check valve that tradition has valve piezoelectric pump is the beam shape of simply cranking arm of single armed, and its opening and closing lag behind piezoelectricity
Pump driving source is a lot, and due to being single armed, valve can be subject to the lateral force of fluid in the course of the work so that valve body and valve seat it
Between placed in the middle and there is gap, cause the closing of valve unreliable, the property followed and cut-off property are bad, and the power source piezoelectricity of piezoelectric pump
The Oscillation Amplitude of pottery is very low, so the frequency of piezoelectric pump, flow and pressure just do not increase.In order to solve these problems, someone
Soft funnel shaped valve, chevron valve, wheeled flap type etc. are invented.But these valves still have limitation, such as funnel shaped
Valve needs space big, and manufacturing procedure is complicated, high cost；The area of chevron valve is big；Wheeled flap type valve block and the regular worker of valve seat
Skill is complicated, the bad of valve block flatness, cutoff performance reduction of valve etc. easily occurs.
Content of the invention
There are valve piezoelectric pump complex structure, the property followed and the bad, high cost of cut-off property, the utility model to overcome
Purpose be to provide a kind of symmetric helix linear valve piezoelectric pump, be separately installed with a pair in the inlet and outlet of valve seat and mutually fall
The linear check valve of the symmetric helix put, for controlling the flow direction of fluid.When suction, piezoelectric vibrator is bent upwards, pump chamber
Volume becomes big reduced pressure, and the linear check valve of the symmetric helix of entrance is opened and the closing in exit, and such fluid is just flowed into
Pump chamber；When scheduling, piezoelectric vibrator is bent downwardly, and the volume of pump chamber diminishes pressure rise, and the symmetric helix of entrance is linear
Closed check valve, the opening of exit, such fluid are just flowed out from exit.Through one complete cycle of suction and scheduling,
Pump is achieved that the one-way transmission of fluid.This pump has that efficiency high, flow be big, simple structure, easy for installation, cost are low excellent
Point.
The utility model solves the technical scheme adopted by its technical problem：A kind of linear valve piezoelectric pump of symmetric helix,
Including piezoelectric vibrator, pump cover, valve seat, screw, pump seat, sealing ring, the pump seat top is provided with pump cover, and pump seat upper end is valve seat,
Sealing ring being provided between valve seat and pump seat, being provided with sealing ring between pump seat and pump cover, pump seat top is provided with piezoelectric vibrator, the pressure
Electric tachometer indicator is located between pump seat and pump cover, is fixedly connected by screw between the piezoelectric vibrator and pump cover, valve seat and pump seat,
The inlet and outlet of valve seat is separately installed with the linear list of symmetric helix of a pair mutually inverted simple beam structure by screw
To valve, the linear valve body of check valve of the symmetric helix of the simple beam structure is corresponding with the inlet hole of valve seat and outlet opening, leads to
The linear check valve of symmetric helix for screw being crossed installed in the simple beam structure of valve seat entrance is inlet valve, is arranged on by screw
The linear check valve of the symmetric helix of the simple beam structure in valve seat exit is dump valve.
The linear check valve of the symmetric helix of simple beam structure described in the utility model is arranged on valve by screw by locator
The import and export of seat, the valve body of the linear check valve of the symmetric helix of the simple beam structure are corresponding with the import and export of valve seat；Institute
The mating shapes of shape and the flow hole of the valve body of the linear check valve of symmetric helix of simple beam structure are stated, its size is more than
The size of flow hole；Right by two between the valve body of the linear check valve of the symmetric helix of the simple beam structure and locator
Cranking arm for the helix shape of title is connected；The linear check valve of the symmetric helix of the simple beam structure is by elastic metallic or non-gold
Category material is made.
After above technical scheme, the beneficial effects of the utility model are：The linear list of the symmetric helix of simple beam structure
Belong to symmetrical equal helix angle conical spring valve to valve, simple structure, low cost, its shape that symmetrically cranks arm are simply supported beam knots
The symmetric helix line of structure, brachium is the several times of conventional valve brachium, thus which is quick on the draw to pump chamber pressure change, open amount
Greatly, followability is good, and the valve can be made up of metal or non-metallic elastic material, and the symmetrical structure that cranks arm because of which, and two is bent
The coefficient of elasticity of arm is consistent, and buckling deformation will not occur during opening and closing, also will not be because of the impact of fluid side power not
Centering, has preferable cutoff performance when thus closing off, can effectively realize the opening and closing of piezoelectric pump, and greatly improve pump
Output.
Description of the drawings
With reference to the accompanying drawings and examples the utility model is further described.
Fig. 1 is the structural representation of the linear valve piezoelectric pump of the utility model symmetric helix.
Fig. 2 is the top view of the linear valve piezoelectric pump of the utility model symmetric helix.
Fig. 3 is the sectional view of the linear check valve front view of the utility model symmetric helix.
Fig. 4 is the top view of the linear check valve of the utility model symmetric helix.
When Fig. 5 is the utility model fluid suction, the state of exit closing opened by symmetric helix linear check valve in entrance
Figure.
When Fig. 6 is the utility model fluid scheduling, the state of porch closing opened by symmetric helix linear check valve in exit
Figure.
Fig. 7 is the fundamental diagram of the linear valve piezoelectric pump of the utility model symmetric helix.
Specific embodiment
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of linear valve piezoelectric pump of symmetric helix of the utility model, shakes including piezoelectricity
Son 1, pump cover 2, valve seat 3, screw 4, pump seat 6, sealing ring 7, sealing ring 8, screw 9,6 top of the pump seat is provided with pump cover 2, pump seat
6 upper ends are valve seat 3, be provided with sealing ring 7, be provided with sealing ring 8 between valve seat 3 and pump cover 2 between valve seat 3 and pump seat 6, and valve seat 3 is pushed up
Portion is provided with piezoelectric vibrator 1, and the piezoelectric vibrator 1 is located between valve seat 3 and pump cover 2, the piezoelectric vibrator 1 and pump cover 2, valve seat 3
And be fixedly connected by screw 9 between pump seat 6, valve seat 3 inlet and outlet by screw 4 be separately installed with a pair mutual
The linear check valve 5 of the symmetric helix of inverted simple beam structure, the valve of the linear check valve 5 of the symmetric helix of the simple beam structure
Body 11 is corresponding with the inlet hole of valve seat 3 and outlet opening, by screw 4 installed in the right of the simple beam structure of 3 entrance of valve seat
Spiral yarn shaped check valve 5 is called inlet valve, is arranged on the symmetric helix line of the simple beam structure in 3 exit of valve seat by screw 4
Shape check valve 5 is dump valve.
The linear check valve 5 of the symmetric helix of simple beam structure described in the utility model is installed by locator 10 by screw 4
In the import and export of valve seat 3, the valve body 11 of the linear check valve 5 of the symmetric helix of the simple beam structure and 3 flow hole of valve seat
Corresponding, its size is more than the size of the flow hole of valve seat 3；The linear check valve 5 of the symmetric helix of the simple beam structure
The mating shapes of the shape of valve body 11 and 3 flow hole of valve seat, the linear check valve 5 of the symmetric helix of the simple beam structure
The shape of the flow hole of valve body 11 and valve seat 3 can be circle, or other geometries；The simple beam structure
Between the valve body 11 of the linear check valve 5 of symmetric helix and locator 10 by two symmetrical helix shapes crank arm 12 be connected
Connect, the helix shape that this is cranked arm is including but not limited to spiral of Archimedes or log spiral；The simply supported beam knot
The linear check valve 5 of the symmetric helix of structure is made up of elastic metallic or nonmetallic materials, such as：Beryllium-bronze or spring steel.
According to Fig. 5, Fig. 6, a kind of linear valve piezoelectric pump of symmetric helix of the utility model, the symmetrical spiral shell of simple beam structure
It is inlet valve that the screw 4 of spin line shape check valve 5 is arranged on inside 3 inlet hole of valve seat, and the symmetric helix of simple beam structure is linear
It is dump valve that the screw 4 of check valve 5 is arranged on outside 3 outlet opening of valve seat, when pump chamber change causes cavity fluid pressure
During change, the linear check valve 5 of the symmetric helix of simple beam structure can realize unidirectional opening and closing under action of a fluid.
According to Fig. 7, the fundamental diagram of the linear valve piezoelectric pump of the utility model symmetric helix, during piezoelectricity pump work,
Ac signal is applied to piezoelectric vibrator 1, under the incentive action of electric signal, piezoelectric vibrator 1 produces cyclic bending deformation vibration,
Pump chamber volume and pressure is caused alternately to change, the course of work of the linear valve piezoelectric pump of symmetric helix is as follows：
First stage（0~1/4T）, with the continuous increase of voltage, piezoelectric vibrator 1 is constantly bent upwards fortune by equilbrium position
Move to extreme position, pump chamber volume increases to maximum, negative pressure, the symmetric helix of the simple beam structure of 3 entrance of valve seat in chamber, occur
The valve body of linear check valve 5 is opened, and fluid flows into pump chamber by inlet hole.
Second stage（1/4T~2/4T）, in this process, voltage constantly reduces, and the deflection of piezoelectric vibrator 1 reduces,
Pump chamber volume also constantly reduces, and in chamber, pressure constantly increases, and the symmetric helix of the simple beam structure of 3 entrance of valve seat is linear unidirectional
The valve body of valve 5 is close to the upper end of 3 import of valve seat under the effect of the pressure, closes import.
Phase III（2/4T~3/4T）, piezoelectric vibrator 1 does downwards bending motion extremely with the increase of voltage by equilbrium position
Minimum point, pump chamber volume constantly reduce, and cavity pressure increases to maximum, the symmetric helix line of the simple beam structure in 3 exit of valve seat
The valve body of shape check valve 5 is opened, and fluid flows out pump chamber by outlet opening.
Fourth stage (3/4T ~ T）, in this stage, the voltage on piezoelectric vibrator constantly reduces, the deformation of piezoelectric vibrator 1
Amount constantly reduces, and pump chamber volume increases, and in chamber, pressure constantly reduces, the symmetric helix line of the simple beam structure in 3 exit of valve seat
The valve body of shape check valve 5 is close to the lower end of outlet under the effect of the pressure, closes import.
When piezoelectric vibrator 1 is moved along S4 → S1 → S2, pump chamber is in diastole state, and pump chamber volume increases, and occurs in chamber
Negative pressure, now the linear check valve 5 of the symmetric helix of the simple beam structure in 3 exit of valve seat close, the simple beam structure of entrance
The linear check valve 5 of symmetric helix open, fluid flows into pump chamber, is the suction of pump；When piezoelectric vibrator 1 is moved along S2 → S3 → S4
When, pump chamber volume compression, in chamber, pressure increases, now the linear check valve 5 of the symmetric helix of the simple beam structure of 3 entrance of valve seat
Close, the linear check valve 5 of the symmetric helix of the simple beam structure in exit is opened, and fluid flows out pump chamber, is the scheduling of pump.Such as
This, within a work period, it is achieved that the suction of fluid and discharge.
Claims (4)
1. the linear valve piezoelectric pump of a kind of symmetric helix, including piezoelectric vibrator（1）, pump cover（2）, valve seat（3）, screw（4）, pump seat
（6）, sealing ring（7）, sealing ring（8）, screw（9）, the pump seat（6）Top is provided with pump cover（2）, pump seat（6）Upper end is valve seat
（3）, valve seat（3）With pump seat（6）Between be provided with sealing ring（7）, valve seat（3）With pump cover（2）Between be provided with sealing ring（8）, valve seat
（3）Top is provided with piezoelectric vibrator（1）, the piezoelectric vibrator（1）Located at valve seat（3）And pump cover（2）Between, the piezoelectric vibrator
（1）With pump cover（2）, valve seat（3）And pump seat（6）Between pass through screw（9）It is fixedly connected, it is characterised in that in valve seat（3）Enter
Mouth and exit pass through screw（4）It is separately installed with the linear check valve of symmetric helix of a pair mutually inverted simple beam structure
(5), the linear check valve of the symmetric helix of the simple beam structure（5）Valve body（11）With valve seat（3）Inlet hole and outlet opening
Corresponding；By screw（4）Installed in valve seat（3）The linear check valve of the symmetric helix of the simple beam structure of entrance（5）For inhaling
Enter valve, by screw（4）Installed in valve seat（3）The linear check valve of the symmetric helix of the simple beam structure in exit（5）For discharging
Valve, the linear check valve of the symmetric helix of the simple beam structure（5）Valve body（11）And locator（10）Between by two right
The cranking arm of the helix shape of title（12）It is connected.
2. the linear valve piezoelectric pump of a kind of symmetric helix according to claim 1, it is characterised in that the simple beam structure
The linear check valve of symmetric helix（5）By screw（4）By locator（10）Installed in valve seat（3）Import and export, the freely-supported
The linear check valve of the symmetric helix of girder construction（5）Valve body（11）With valve seat（3）Flow hole is corresponding, and its size is more than valve seat
（3）Flow hole size.
3. the linear valve piezoelectric pump of a kind of symmetric helix according to claim 1, it is characterised in that the simple beam structure
The linear check valve of symmetric helix（5）Valve body（11）Shape and valve seat（3）The mating shapes of flow hole.
4. the linear valve piezoelectric pump of a kind of symmetric helix according to claim 1, it is characterised in that the simple beam structure
The linear check valve of symmetric helix（5）It is made up of elastic metallic or nonmetallic materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035953 | 2016-01-15 | ||
| CN2016200359536 | 2016-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000713U true CN206000713U (en) | 2017-03-08 |
Family
ID=58201080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620735637.XU Expired - Fee Related CN206000713U (en) | 2016-01-15 | 2016-07-13 | A kind of linear valve piezoelectric pump of symmetric helix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927517A (en) * | 2016-01-15 | 2016-09-07 | 王颖 | Symmetrical spiral linear valve piezoelectric pump |
-
2016
- 2016-07-13 CN CN201620735637.XU patent/CN206000713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927517A (en) * | 2016-01-15 | 2016-09-07 | 王颖 | Symmetrical spiral linear valve piezoelectric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170308 Termination date: 20200713 |