CN202177632U - Multi-way liquid sampling device - Google Patents
Multi-way liquid sampling device Download PDFInfo
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- CN202177632U CN202177632U CN2011200805036U CN201120080503U CN202177632U CN 202177632 U CN202177632 U CN 202177632U CN 2011200805036 U CN2011200805036 U CN 2011200805036U CN 201120080503 U CN201120080503 U CN 201120080503U CN 202177632 U CN202177632 U CN 202177632U
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Abstract
The utility model discloses a multi-way liquid sampling device, which belongs to the technical field of chemical analysis and quantitative analysis and is used for achieving automation of a liquid adding system in an instrument or automatic quantitative addition of various test solutions in an analytical test. The multi-way liquid sampling device can be controlled by a microcomputer, a motor drives a shaft lever to move vertically, and a piston is installed at the lower end of the shaft lever and slidably matched with an air pump. When the shaft lever moves upwards, a liquid inlet solenoid valve of a solution to be taken is opened, the solution is pressed by external air pressure to sequentially pass through the liquid inlet solenoid valve and a multi-pass block to enter a quantitative pipe; and when the shaft lever moves downwards, the liquid inlet solenoid valve is closed, a liquid outlet solenoid valve is opened, the absorbed solution passes through the liquid outlet solenoid valve to be injected in a specified container from a liquid outlet, and sampling of one solution is finished. The multi-pass block can be connected with a plurality of liquid inlet solenoid valves, thereby achieving respective removal of various solutions. The multi-way liquid sampling device is simple in structure, good in stability and capable of being widely applied to the automatic liquid adding system and the analytical test of the instrument.
Description
Technical field
The utility model relates to a kind of multichannel fluid sampling device, belongs to the technical field of chemical analysis and quantitative test.
Background technology
The multichannel fluid sampling device is a kind of automatic, contactless, device that can quantitatively pipette various liquid respectively, is used for realizing that instrument and meter adds that automatic ration adds various test solutions in robotization or the analytical test of liquid systems.In the chemical analysis of routine, pipette solution and normally manually pipette, waste time and energy, also possibly cause measuring error, influence is monitoring in real time.Along with the quickening of industrial or agricultural modernization paces, the accuracy of analyzing test data, ageing increasingly high, the traditional hand test can not be satisfied present needs, and this just needs a kind of multichannel fluid sampling device that can adapt to the modern chemical analysis requirement.
The utility model content
The objective of the invention is to develop a kind of simple in structure, good stability, can pipette the sampler of multiple solution automatically; Can be widely used in adding liquid systems automatically in the analytical instrument; Solve the subject matter that prior art exists; Reduce labor intensity the accuracy of raising analyzing test data and ageing, the on-line monitoring of realization analytical instrument instrument.
The method principle of the utility model:
Motor drives axostylus axostyle and does motion up or down under the control of single-chip microcomputer, when axostylus axostyle moves upward, the pressure in the pump bowl is reduced; Open the liquid inlet electromagnetic valve (closing other all solenoid valve simultaneously) of the correspondence of the solution of getting; Ambient pressure is pressing this solution successively through its liquid inlet electromagnetic valve, how logical piece enters into quantity tube, and when reaching volume required, liquid level detector sends signal and gives motor; Let motor stop action, make axostylus axostyle stop upwards operation.Close this liquid inlet electromagnetic valve, open liquid outlet electromagnetic valve, simultaneously, the driven by motor axostylus axostyle moves downwards, and the solution that extracts is injected in the container of appointment, accomplishes the sampling task of first kind of solution.When second kind of needs extraction or the third solution, as long as open corresponding liquid inlet electromagnetic valve, repeat above-mentioned steps and get final product, realized the sampling work of multiple solution.
According to above-mentioned principle, the concrete structure of the multichannel fluid sampling device among the present invention is:
A kind of multichannel fluid sampling device, it comprises motor, axostylus axostyle, piston, pump bowl, web member one and web member two, quantity tube, liquid level detector, leads to piece, liquid inlet electromagnetic valve one and liquid inlet electromagnetic valve two, liquid outlet electromagnetic valve more.Piston is equipped with in the lower end of axostylus axostyle, joins with the pump bowl cunning, and the lower end of pump bowl is connected through web member one with the upper end of quantity tube, and how logical piece is below quantity tube, and the upper end liquid pumping hole that leads to piece is connected through web member two with the lower end of quantity tube more; Many logical pieces have inlet one and inlet two, are connected with liquid inlet electromagnetic valve two with liquid inlet electromagnetic valve one respectively, and solution one or solution two are inhaled in the quantity tube in the motion process that axostylus axostyle makes progress.
In addition, there is liquid pumping hole the upper end that leads to piece more, and left end has inlet two, and right-hand member has inlet one, and there is liquid outlet the lower end.Moving up and down by driven by motor of axostylus axostyle realized robotization.
Technical parameter of the present invention:
The solution amount that this multichannel fluid sampling device is extracted is decided by the size of pump bowl capacity and quantity tube capacity; At extraction speed 5 ~ 10ml/min, the bore at dress liquid level detector position reaches 0.05ml through detecting its accuracy on the quantity tube when 3 ~ 8mm; The stream bore dia of liquid is at 1 ~ 3mm in many logical pieces; The serviceable life of pump bowl and piston is greater than 10,000 times.
That motor adopts is through, fixedly shaft type or external drive formula linear electric motors, and about 50 pounds thrust can be provided; Axostylus axostyle adopts metal or rigid plastic; Piston adopts the plastics corrosion-resistant, that friction factor is less, and the internal diameter cunning of the size of its diameter and pump bowl is joined; Pump bowl is processed by hard glass or plastics, and its volume size is decided according to the sampling amount of maximum; Web member adopts corrosion resistant plastics; Quantity tube adopts the transparent horminess glass tube of internal diameter greater than 3mm; Liquid level detector can adopt infrared or capacitance principle; Many logical pieces adopt corrosion resistant plastics, and middle liquid flow path diameter is at 1 ~ 3mm, and there is liquid pumping hole the upper end, and there is liquid outlet the lower end, and there are a plurality of inlets in right ends or front; Liquid inlet electromagnetic valve, liquid outlet electromagnetic valve all adopt corrosion resistant miniature electromagnetic valve.
Description of drawings
Fig. 1 is the structural representation of the utility model.
1, motor 2, axostylus axostyle 3, piston 4, pump bowl 5, web member 1, web member 26 quantity tubes 7, detector of liquid 9, how logical piece 10, how upper end liquid pumping hole 11, how inlet 1, how inlet 2 15, liquid inlet electromagnetic valve 1, liquid inlet electromagnetic valve 2 18, liquid outlet electromagnetic valve 19, liquid outlet 20, solution 1, the solution two of logical piece of logical piece of logical piece.
Embodiment
According to shown in Figure 1; A kind of multichannel fluid sampling device, it comprises: motor (1), axostylus axostyle (2), piston (3), pump bowl (4), web member one (5), web member two (8), quantity tube (6), liquid level detector (7), how logical piece (9), liquid inlet electromagnetic valve one (15) and liquid inlet electromagnetic valve two (16), liquid outlet electromagnetic valve (18).Motor (1) is connected with axostylus axostyle (2); Under control of microcomputer; Motor (1) drives axostylus axostyle (2) and moves up and down, and piston (3) is equipped with in the lower end of axostylus axostyle (2), joins with pump bowl (4) is sliding; The lower end of pump bowl (4) is connected through web member one (5) with the upper end of quantity tube (6); Many logical pieces (9) are below quantity tube (6), and the upper end liquid pumping hole (10) that leads to piece (9) is connected through web member two (8) with the lower end of quantity tube (6) more, and inlet one (11) links to each other with liquid inlet electromagnetic valve two (16) with liquid inlet electromagnetic valve one (15) respectively with inlet two (12); Liquid outlet (19) links to each other with liquid outlet electromagnetic valve (18), and the other end of liquid inlet electromagnetic valve one (15) and liquid inlet electromagnetic valve two (16) links to each other with solution two (21) with solution one (20) respectively.When axostylus axostyle (2) when moving upward; Pressure in the pump bowl (4) reduces; Open the liquid inlet electromagnetic valve of being got solution; Close other all solenoid valve simultaneously, ambient pressure pressing this solution successively the liquid inlet electromagnetic valve through being got solution, how logical piece (9) enters into quantity tube (6), the size of solution amount is controlled by liquid level detector (7).When axostylus axostyle (2) when moving downward, close this liquid inlet electromagnetic valve, open liquid outlet electromagnetic valve (18), from liquid outlet (19), be injected into the solution of drawing in the container of appointment through liquid outlet electromagnetic valve (18), accomplish a kind of sampling process of solution.
The advantage and the good effect of the utility model are: realized the automatic sampling of multiple solution, improved analytical test speed, can apply to add liquid systems automatically in the analytical test instrument, realized online detection.
1, moving up and down of axostylus axostyle driven by Electric Machine Control, realized the robotization of sampling.
2, with the liquid level in the liquid level detector control quantity tube, realize by the accurate quantification of drawing liquid body.
3, only entered into quantity tube by the drawing liquid body, do not enter into pump bowl, prevented the corrosion of liquid, prolonged its serviceable life, realized the non-contact type sampling pump bowl.
4, on the how logical piece a plurality of inlets and liquid inlet electromagnetic valve are arranged, realized the sampling respectively of various liquid.
After the multichannel fluid sampling device of the utility model applies to the analyzing and testing instrument; Be specially adapted to the continuous on-line monitoring in environmental protection, oil, the chemical industry; Improved the real-time of work efficiency and analyzing test data, to improving the quality of products and Sensitivity of Analytical Method, accuracy have very important and practical meanings and social effect.
Claims (3)
1., a kind of multichannel fluid sampling device; It comprises motor (1), axostylus axostyle (2), piston (3), pump bowl (4), web member one (5) and web member two (8), quantity tube (6), liquid level detector (7), leads to piece (9), liquid inlet electromagnetic valve one (15) and liquid inlet electromagnetic valve two (16), liquid outlet electromagnetic valve (18) more; It is characterized in that: piston (3) is equipped with in the lower end of axostylus axostyle (2); Join with pump bowl (4) is sliding; The lower end of pump bowl (4) is connected through web member one (5) with the upper end of quantity tube (6); Many logical pieces (9) are below quantity tube (6), and the upper end liquid pumping hole (10) that leads to piece (9) is connected through web member two (8) with the lower end of quantity tube (6) more; Many logical pieces (9) have inlet one (11) and inlet two (12); Be connected with liquid inlet electromagnetic valve two (16) with liquid inlet electromagnetic valve one (15) respectively, solution one (20) or solution two (21) are inhaled in the quantity tube (6) in the motion process that axostylus axostyle (2) makes progress.
2. multichannel fluid sampling device according to claim 1 is characterized in that there is liquid pumping hole (10) upper end of many logical pieces (9), and left end has inlet two (12), and right-hand member has inlet one (11), and there is liquid outlet (19) lower end.
3. multichannel fluid sampling device according to claim 1 is characterized in that moving up and down of axostylus axostyle (2) driven by motor (1), realized robotization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805036U CN202177632U (en) | 2011-03-24 | 2011-03-24 | Multi-way liquid sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805036U CN202177632U (en) | 2011-03-24 | 2011-03-24 | Multi-way liquid sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202177632U true CN202177632U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200805036U Expired - Fee Related CN202177632U (en) | 2011-03-24 | 2011-03-24 | Multi-way liquid sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202177632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692519A (en) * | 2011-03-24 | 2012-09-26 | 江苏江分电分析仪器有限公司 | Multipath liquid sampler |
| CN105092873A (en) * | 2015-08-10 | 2015-11-25 | 胥凤山 | Reagent filling device |
-
2011
- 2011-03-24 CN CN2011200805036U patent/CN202177632U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692519A (en) * | 2011-03-24 | 2012-09-26 | 江苏江分电分析仪器有限公司 | Multipath liquid sampler |
| CN102692519B (en) * | 2011-03-24 | 2015-04-15 | 江苏江分电分析仪器有限公司 | Multipath liquid sampler |
| CN105092873A (en) * | 2015-08-10 | 2015-11-25 | 胥凤山 | Reagent filling device |
| CN105092873B (en) * | 2015-08-10 | 2017-05-17 | 胥凤山 | Reagent filling device |
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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: 20120328 Termination date: 20160324 |