CN202089432U - Liquid taking device driven by piezoelectric pump and arranged at bottle mouth - Google Patents
Liquid taking device driven by piezoelectric pump and arranged at bottle mouth Download PDFInfo
- Publication number
- CN202089432U CN202089432U CN2011201602950U CN201120160295U CN202089432U CN 202089432 U CN202089432 U CN 202089432U CN 2011201602950 U CN2011201602950 U CN 2011201602950U CN 201120160295 U CN201120160295 U CN 201120160295U CN 202089432 U CN202089432 U CN 202089432U
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- piezoelectric pump
- liquid
- piezoelectric
- taking device
- liquid taking
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Abstract
The utility model relates to a liquid taking device driven by a piezoelectric pump and arranged at a bottle mouth and belongs to liquid delivery devices adopting piezoelectric pumps. A display area, a control button area, a control circuit board and the piezoelectric pump are arranged in a casing integrally, wherein a liquid outlet pipe is connected with a water outlet pipe of the piezoelectric pump, and a liquid suction pipe is connected with a water inlet pipe of the piezoelectric pump. Through the adoption of the bottle mouth liquid taking device, micro-flow fluid delivery can be fulfilled in various fields, a burette currently used can be completely replaced, and the waste of costly agents can be avoided. The liquid taking device has the advantages of simplicity and convenience in operation, high control precision, high resolution and large regulating range.
Description
Technical field
The utility model belongs to a kind of liquid transporting apparatus that adopts piezoelectric pump, and can be widely used in biology, chemistry, medical treatment, food, environment etc. needs accurate quantification to carry the various occasions of low flow rate liquid.
Background technology
Need accurate quantification to carry the various occasions of low flow rate liquid to adopt the burette manual operation at biology, chemistry, medical treatment, food, environment etc. more at present, make and realize operating difficulties in the accurate quantitative chemical reaction, and it is bigger to produce error at needs.
Summary of the invention
The utility model provides a kind of bottleneck liquid taking device that utilizes piezoelectric pump to drive, and quantitatively gets, send the operating difficulties that exists with what solve present low flow rate liquid, and produce the big problem of error.
The technical solution adopted in the utility model is: display space, control button district, control circuit board, piezoelectric pump all are integrated in the housing, and drain pipe is connected with the coolant outlet pipe of piezoelectric pump, and pipette is connected with the coolant inlet pipe of piezoelectric pump.
Piezoelectric pump described in the utility model is made of come in and go out mouth of pipe unit, valve block seat, piezoelectric vibrator seat, piezoelectric vibrator, admission valve and outlet valve, piezoelectric vibrator is made of metal substrate and piezoceramic, piezoelectric vibrator is captiveed joint with the piezoelectric vibrator seat, discrepancy mouth of pipe unit is provided with coolant inlet pipe and coolant outlet pipe, and reversed arrangement has admission valve and outlet valve on the valve block seat.
The port that can realize sealed attachment with the bottleneck of liquid storage bottle is arranged on the housing described in the utility model.
Piezoelectric pump utilizes the bending vibrattion of piezoelectric vibrator to form the cavity volume variation, because the piezoelectric vibrator deflection is minimum, thereby the every pulse of cavity volume variable quantity that causes can reach the microlitre magnitude, when drive signal one regularly, the each delivery rate of piezoelectric pump is certain, and control precisely.Utilize micro controller system according to the pumped liquid scale of construction that sets, the control power supply provides the driving electric signal of a certain voltage and pulse number to piezoelectric pump; This device adopts display module to show operational throughput in real time, quits work automatically when finishing the setting value flow volume delivery, and implementation procedure is simple, convenient.Can finish tiny flow quantity liquid in a plurality of fields and carry, replace the burette that uses at present fully, valuable reagent avoids waste.
The driving bottleneck liquid taking device of piezoelectric pump of the present utility model can adopt manual control and automatic guidance dual mode to realize the quantitative conveying of liquid.So-called manually control is meant: behind the opening power button, when pushing the hand push button in the control button district, piezoelectric pump work also drives liquid by output continuously in the bottle, when unclamping the hand push button in the control button district, piezoelectric pump quits work, and the output of liquid stops simultaneously.Automatic guidance is meant: after preestablishing piezoelectric pump operating voltage and pulse number by the man-machine interface of being made up of display space and control button district, hand push button in the crawl control button district, stop when then piezoelectric pump work is to the pulse number that reaches reservation, realized the quantitative conveying of liquid.
The driving bottleneck liquid taking device of piezoelectric pump of the present utility model can be positioned over bottleneck for a long time at ordinary times, play the effect of liquid bottles leak free as bottle stopper.When needs were carried liquid, opening power button energized promptly can be worked, and finished liquid and carried task.
The utility model has the advantages that: this device uses piezoelectric pump can realize the high-resolution of liquid dielectric, continuous or conveying intermittently, substitute and realize that in the biochemical analysis process small quantity liquid dielectric shifts devices such as employed burette, reduce or avoid the waste of liquid dielectric, especially when using expensive liquid reagent, seem particularly important.
This device integrates piezoelectric pump, control circuit board, chargeable battery, control button, read-out etc., adopt integrated structure design, be installed on the liquid bottleneck, low cost of manufacture, simple, convenient, correct this device that uses can be eliminated in the biochemical analysis process because the personal error that produces in the reagent proportioning process, improves correctness, reliability, the confidence level of analysis result.
This device adopts the chargeable battery power supply, long service life, but repeated use, and use cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the piezoelectric pump structural representation that the utility model adopts, and is single chamber type piezoelectric pump among the figure;
Fig. 3 is the utility model control circuit schematic diagram.
The specific embodiment
With reference to Fig. 1, display space 2, control button district 3, control circuit board 4, piezoelectric pump 5 all are integrated in the housing 6, and drain pipe 1 is connected with the coolant outlet pipe 512 of piezoelectric pump 5, and pipette 7 is connected with the coolant inlet pipe 511 of piezoelectric pump 5.
With reference to Fig. 2, piezoelectric pump 5 described in the utility model is made of come in and go out mouth of pipe unit 51, valve block seat 52, piezoelectric vibrator seat 53, piezoelectric vibrator 54, admission valve 55 and outlet valve 56, piezoelectric vibrator 54 is made of metal substrate 541 and piezoceramic 542, piezoelectric vibrator 54 is captiveed joint with piezoelectric vibrator seat 53, discrepancy mouth of pipe unit 51 is provided with coolant inlet pipe 511 and coolant outlet pipe 512, and reversed arrangement has admission valve 55 and outlet valve 56 on valve block seat 52.
The port 8 that can realize sealed attachment with the bottleneck of liquid storage bottle 9 is arranged on the housing 6 described in the utility model.
Use is as follows: this device is linked to each other with the bottleneck of liquid storage bottle 9 by the port 8 that is tightly connected that is arranged on the housing 6, guarantee that liquid dielectric 10 does not leak from the junction, pipette 7 should be immersed in the liquid dielectric 10, piezoelectric pump 5 aspirated air not when guaranteeing system works improves the accuracy and the reliability of flow metering.
With reference to Fig. 3, be furnished with chargeable battery on the control circuit board 4, for single chip control module provides power supply; Operation push-button links to each other with the signal input part of single chip control module, and data display unit links to each other with the mouth of single chip control module, finishes the man-machine interaction task with the operator; Single chip control module is according to the input of operation push-button, calculate the drive signal parameters of piezoelectric pump 5 by inner adaptive control algorithm, comprise driving voltage, driving frequency, drive signal impulse number etc., and control signal is exported by the micro controller system mouth, through the signal amplifying element micro controller system output signal is amplified piezoelectric vibrator with the drive pressure electric pump, the piezoelectric vibrator of piezoelectric pump is connected the mouth of signal amplification unit as load.
Claims (3)
1. bottleneck liquid taking device that utilizes piezoelectric pump to drive, it is characterized in that: display space, control button district, control circuit board, piezoelectric pump all are integrated in the housing, and drain pipe is connected with the coolant outlet pipe of piezoelectric pump, and pipette is connected with the coolant inlet pipe of piezoelectric pump.
2. a kind of bottleneck liquid taking device that utilizes piezoelectric pump to drive according to claim 1 is characterized in that: the port that can realize sealed attachment with the bottleneck of liquid storage bottle is arranged on the housing.
3. a kind of bottleneck liquid taking device that utilizes piezoelectric pump to drive according to claim 1 and 2, it is characterized in that: piezoelectric pump is made of come in and go out mouth of pipe unit, valve block seat, piezoelectric vibrator seat, piezoelectric vibrator, admission valve and outlet valve, piezoelectric vibrator is made of metal substrate and piezoceramic, piezoelectric vibrator is captiveed joint with the piezoelectric vibrator seat, discrepancy mouth of pipe unit is provided with coolant inlet pipe and coolant outlet pipe, and reversed arrangement has admission valve and outlet valve on the valve block seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201602950U CN202089432U (en) | 2011-05-19 | 2011-05-19 | Liquid taking device driven by piezoelectric pump and arranged at bottle mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201602950U CN202089432U (en) | 2011-05-19 | 2011-05-19 | Liquid taking device driven by piezoelectric pump and arranged at bottle mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202089432U true CN202089432U (en) | 2011-12-28 |
Family
ID=45364516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201602950U Expired - Lifetime CN202089432U (en) | 2011-05-19 | 2011-05-19 | Liquid taking device driven by piezoelectric pump and arranged at bottle mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202089432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219084A (en) * | 2011-05-19 | 2011-10-19 | 常州志邦电子科技有限公司 | Bottle opening liquid taking device by using driving of piezoelectric pump |
-
2011
- 2011-05-19 CN CN2011201602950U patent/CN202089432U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219084A (en) * | 2011-05-19 | 2011-10-19 | 常州志邦电子科技有限公司 | Bottle opening liquid taking device by using driving of piezoelectric pump |
| CN102219084B (en) * | 2011-05-19 | 2013-10-30 | 常州志邦电子科技有限公司 | Bottle opening liquid taking device by using driving of piezoelectric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20131030 |
|
| RGAV | Abandon patent right to avoid regrant |