CN201076813Y - Drop test solution agitation control device - Google Patents
Drop test solution agitation control device Download PDFInfo
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- CN201076813Y CN201076813Y CNU2007200398599U CN200720039859U CN201076813Y CN 201076813 Y CN201076813 Y CN 201076813Y CN U2007200398599 U CNU2007200398599 U CN U2007200398599U CN 200720039859 U CN200720039859 U CN 200720039859U CN 201076813 Y CN201076813 Y CN 201076813Y
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Abstract
A blending control device for trace quantity test solution relates to the electrochemistry experiment or checking field. The scheme is that a rabbling mechanism which is composed of a first motor and a fixing seat of an electrolytic cell and a composite electrode which is composed of a second motor, a feed screw nut driving structure and an electrode supporting structure are inserted into a positioning mechanism to combine, wherein the rabbling mechanism can drive the electrolytic cell to rotate horizontally, the electrolytic cell drives the trace quantity test solution to rotate through the frictional force, the composite electrode is inserted into the positioning mechanism, the composite electrode can be clamped to move upwards and downwards, positioning can be realized through being inserted into the electrolytic cell, and thereby the utility model solves the problems that the trace quantity test solution is blended and a small-sized composite electrode is automatically inserted a small electrolytic cell and positions automatically and accurately in the tests and studies of electrochemistry analysis. Furthermore the device also can realize linkage with an electrochemistry experiment or checking device through a linkage switch, which realizes automation of testing courses and test solution blending.
Description
Technical field
The utility model relates to the agitating device that uses in electrochemistry experiment or the test, particularly a kind of stirring control device that is applicable to micro-test solution.This device can be in the little electrolytic cell of 10mm at diameter, and (tens of to hundreds of microlitre test solutions) stir and control to micro-test solution, and small-sized combination electrode can be inserted in the electrolytic cell and accurately locate, thereby electrochemistry experiment is carried out smoothly.
Background technology
In the experimentation of the mensuration of electrochemical analysis and research, usually under the condition that stirs test solution, carry out, the device that stirs usefulness adopts traditional magnetic stirring apparatus, test solution with tens of milliliters or more volume during use is placed in the big electrolytic cell (or beaker), and put into a stirrer, insert test solution (above stirrer) with three large-area working electrodes, reference electrode with to electrode again in order to avoid the collision electrode, start and stir switch, thereby reach the purpose that stirs test solution.
At the needs of mensuration and research work, especially to the research of biological substance, valuable test solution (for example " blood ") sampling amount can not can only be tens of extremely hundreds of microlitres with the tens of milliliters of large volume, and the electrolytic cell of placing test solution like this also must be very little.In this case, the electrode of test can adopt small-sized combination electrode to adapt to the requirement of microlitre order of magnitude test solution, and still, agitating device uses magnetic stirring apparatus, and experiment can't be carried out this moment.So, how solving in little electrolytic cell and stirring the problem that microlitre order of magnitude test solution and electrode accurately insert the location is an essential technical task that solves.
Summary of the invention
The utility model provides a kind of stirring control device of micro-test solution, its objective is in the mensuration and research that will solve electrochemical analysis, (tens of to hundreds of microlitre test solutions) stir to micro-test solution, and insert in the little electrolytic cell automatically small-sized combination electrode and the problem of automatic accurate location.
For achieving the above object, the technical solution adopted in the utility model is: a kind of stirring control device of micro-test solution comprises that bearing, rabbling mechanism and combination electrode insert detent mechanism;
Rabbling mechanism is made up of the holder of first motor and electrolytic cell, first motor is installed on the bearing, its rotating shaft holder that is in transmission connection, holder is provided with the clip fixed structure at electrolytic cell, this clip fixed structure is positioned electrolytic cell for erectility, and the worn-out mouth that keeps electrolytic cell is towards the top, and the relative bearing of holder is for horizontally rotating connection, and pivot center is perpendicular to the horizontal plane of bearing;
Combination electrode inserts detent mechanism and is made up of second motor, feed screw nut's drive mechanism and electrode fixed mount, feed screw nut's drive mechanism uprightly is arranged on the bearing, wherein, the relative bearing of screw mandrel is rotationally connected, and the relative bearing of second motor is fixed, and an end of its rotating shaft and screw mandrel is in transmission connection, nut cooperates with screw mandrel, nut is fixedlyed connected with the electrode fixed mount, and the electrode fixed mount is provided with clamp port, and the Clamping Center line of this clamp port overlaps with the pivot center of holder.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described " bearing " is a kind of epistasis address, also can be called support, base or housing etc.
2, in the such scheme, described first motor can be rotary dc motor, and its rotating shaft is directly fixedlyed connected with the holder bottom up.Second motor is a rotating stepper motor, and is positioned at an end of screw mandrel, and its rotating shaft is directly fixedlyed connected with the end of screw mandrel.
3, in the such scheme,, the coil windings of rotary dc motor can be connected with power supply with switch through regulator in order to realize the continuous adjusting of mixing speed.
4, in the such scheme,, the switch of rotary dc motor and the starting switch of electrochemical analysis determinator can be designed to linkage structure in order to make the interlock of rabbling mechanism and electrochemical analysis determinator.When the electrochemical analysis determinator was started working, rabbling mechanism began to rotate, and when the electrochemical analysis determinator quit work, rabbling mechanism also stopped operating.
5, in the such scheme, when electrolytic cell is test tube, holder can be designed to opening claw type clamp up, the clip fixed structure is arranged by at least two elastic claw clampings and is formed.
The utility model principle is: a combination electrode insertion detent mechanism and a rabbling mechanism are made up, and wherein, rabbling mechanism can drive electrolytic cell and do to horizontally rotate, and electrolytic cell drives micro-test solution rotation by frictional force; But combination electrode inserts detent mechanism clamping combination electrode carries out the upper and lower realization location in the electrolytic cell of moving and insert, thereby solve in the mensuration and research of electrochemical analysis, micro-test solution is stirred, and insert in the little electrolytic cell automatically small-sized combination electrode and the problem of automatic accurate location.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, (example: blood sample) determination experiment has solved the stirring problem of test solution in order to adopt the little biological substance of sample size.
2, can link with the overall process that electrochemical analysis is measured, realized the automation that the mensuration process stirs test solution.
3, when experiment can automatic mobile combination electrode, for electrode in little electrolytic cell accurately provides convenience in the location, can guarantee the precision of measuring.
Description of drawings
Accompanying drawing 1 is the stirring control device structural representation of the utility model trace test solution;
Accompanying drawing 2 is the utility model claw type clamp front view;
Accompanying drawing 3 is the vertical view of Fig. 2;
Accompanying drawing 4 is the A-A cutaway view among Fig. 2;
Accompanying drawing 5 is the utility model electrolytic cell test tube cutaway view;
Accompanying drawing 6 stirs the Motor Control schematic diagram for the utility model;
In the above accompanying drawing: 1, base; 2, the seat of honour; 3, platform; 4, dc motor; 5, claw type clamp; 6, elastic claw; 7, little electrolytic cell test tube; 8, stepper motor; 9, electrode fixed mount; 10, screw mandrel; 11, nut; 12, clamp port; 13, combination electrode.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1, a kind of stirring control device of micro-test solution inserts detent mechanism by bearing, rabbling mechanism and combination electrode and forms.
Bearing is made up of the base 1 and 2 two ones at the seat of honour, and base 1 has a platform 3 to be used to install rabbling mechanism as the basis of whole device on the base 1.The seat of honour 2 is fixed on the base 1, is used to install combination electrode and inserts detent mechanism.
Rabbling mechanism is made up of dc motor 4 and claw type clamp 5.Dc motor 4 is installed in platform 3 back sides of base 1, and its rotating shaft is passed a through hole up and directly fixedlyed connected with claw type clamp 5 bottoms on the platform 3.Claw type clamp 5 is designed to opening clip structure up, sees Fig. 2～shown in Figure 4, and wherein, the clip structure is formed along horizontal circumferential array by three elastic claws 6.Little electrolytic cell test tube 7 (see shown in Figure 5, diameter is 10mm) inserts three elastic claws 6 from the top, and utilizes elasticity that little electrolytic cell test tube 7 is positioned erectility, and keeps worn-out mouthful of electrolytic cell towards the top.When dc motor 4 rotates, drive little electrolytic cell test tube 7 and horizontally rotate, and pivot center is perpendicular to platform 3 end faces.
Combination electrode inserts detent mechanism and is made up of stepper motor 8, feed screw nut's drive mechanism and electrode fixed mount 9.Feed screw nut's drive mechanism uprightly is arranged on the seat of honour 2, and wherein, the screw mandrel 10 relative seats of honour 2 are rotationally connected, and stepper motor 8 is positioned at screw mandrel 10 lower ends, and the seat of honour 2 is fixing relatively, and its rotating shaft is fixedlyed connected with the lower end of screw mandrel 10.Nut 11 cooperates with screw mandrel 10, the sidepiece fixed electrode fixed mount 9 of nut 11, and electrode fixed mount 9 is a cantilever design, its arm end is provided with clamp port 12, is used for clamping combination electrode 13.For combination electrode 13 can be inserted in the little electrolytic cell test tube 7 smoothly, the Clamping Center line of the clamp port 12 of electrode fixed mount 9 overlaps with the pivot center of claw type clamp 5.
Fig. 6 is for stirring the Motor Control schematic diagram, and wherein, voltage-stabilized power supply P provides the power supply of dc motor D.Linked switch K is the gauge tap of dc motor D, and the starting switch of this switch and electrochemical analysis determinator is designed to linkage structure.When the electrochemical analysis determinator was started working, rabbling mechanism began to rotate, and when the electrochemical analysis determinator quit work, rabbling mechanism also stopped operating, and made the interlock of rabbling mechanism and electrochemical analysis determinator, so that realize automation.Regulator W is used for regulating the supply voltage of dc motor D, thus the rotating speed of step-less adjustment dc motor D, with the mixing speed of control test solution.Dc motor D is that the test solution of this device stirs executing agency.Ammeter E can indicate the rotating speed of dc motor D, also promptly indicates the mixing speed of test solution.
Fig. 7 is a combination electrode running fix step motor control schematic diagram, and wherein, microprocessor U produces the required trigger impulse of stepper motor Z as control centre, gives stepper motor drive plate F by amplification shaping device G1, drives stepper motor Z.Microprocessor U also has the output of one tunnel control signal, gives drive plate F through amplification and rectification circuit G2, comes the forward and reverse of control step motor Z, moves and moves down so that drive on the combination electrode.On the displacement that moves and move down fully by the umber of pulse of microprocessor U output and the screw mandrel that is attached thereto, nut decision.
If: the elongation γ of stepper motor Z=1.5 °, i.e. each pulse make stepper motor Z rotate 1.5 °;
The pitch of screw mandrel is gone into=2mm;
The upper and lower displacement amount is L;
Umber of pulse is C;
Be that L=(C* γ/360) * goes into
Suppose the displacement L=50mm that moves up and down
Then: C=360*L/ (going into * γ)=360*50/ (2*1.5)=6000
1, like this microprocessor is sent 6000 pulses at every turn and is just finished and move past journey or folding process on one.
2, positioning accuracy: positioning accuracy is stepper motor and moves down and drive the precision that combination electrode inserts the position of electrolytic cell, depends on ± displacement of 1 pulse.
That is: γ=1.5 a ° C=1 goes into=2 L=1.5/360*2=0.008mm in the above example
3, the frequency f of pulse output is depended in the speed control that moves on and move down.
If: finish time of moving or moving down in 5 seconds for the most suitable
Then: f=c/t=6000/5=1200Hz
The pulse frequency that also is microprocessor U output is 1200Hz, can finish an one way and move, and accelerate the translational speed of combination electrode, as long as strengthen the pulse frequency f of output, can conveniently realize.The frequency of pulse, the number count of pulse are all determined by the software programming of microprocessor.
Fig. 8 is the controller panel schematic diagram, wherein, is provided with four buttons, is respectively " setting ", " affirmation ", " up ", " descending ".When this setting is brought into use, must not insert little electrolytic cell and up stop position is set at combination electrode.Concrete steps are as follows:
Connecting line with special configuration links the electrochemical analysis determinator with stirring control device, open electrochemical analysis determinator power supply.Press " setting " key, again by " descending " key, combination electrode is descending automatically, be inserted into the centre position of test solution height in the little electrolytic cell always, press " affirmation " key,, can press " up " repeatedly or " descending " adjusted if the position is improper, till the combination electrode location is suitable, click " affirmation " again.At this moment the position of combination electrode in little electrolytic cell configures.After finishing above-mentioned assignment procedure, use when just waiting for formal mensuration.
In the use, as long as by " up ", " descending " key, combination electrode can be inserted automatically and extract little electrolytic cell, and accurately stop at desired location.
Measure needs according to electrochemical analysis, rotatable " speed adjusting knob " transfers to required mixing speed and gets final product in whipping process.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. the stirring control device of a micro-test solution is characterized in that: comprise that bearing, rabbling mechanism and combination electrode insert detent mechanism;
Rabbling mechanism is made up of the holder of first motor and electrolytic cell, first motor is installed on the bearing, its rotating shaft holder that is in transmission connection, holder is provided with the clip fixed structure at electrolytic cell, this clip fixed structure is positioned electrolytic cell for erectility, and the worn-out mouth that keeps electrolytic cell is towards the top, and the relative bearing of holder is for horizontally rotating connection, and pivot center is perpendicular to the horizontal plane of bearing;
Combination electrode inserts detent mechanism and is made up of second motor, feed screw nut's drive mechanism and electrode fixed mount, feed screw nut's drive mechanism uprightly is arranged on the bearing, wherein, the relative bearing of screw mandrel is rotationally connected, and the relative bearing of second motor is fixed, and an end of its rotating shaft and screw mandrel is in transmission connection, nut cooperates with screw mandrel, nut is fixedlyed connected with the electrode fixed mount, and the electrode fixed mount is provided with clamp port, and the Clamping Center line of this clamp port overlaps with the pivot center of holder.
2. stirring control device according to claim 1 is characterized in that: described first motor is a rotary dc motor, and its rotating shaft is directly fixedlyed connected with the holder bottom up; Second motor is a rotating stepper motor, and is positioned at an end of screw mandrel, and its rotating shaft is directly fixedlyed connected with the end of screw mandrel.
3. stirring control device according to claim 2 is characterized in that: the coil windings of described rotary dc motor is connected with power supply with switch through regulator.
4. stirring control device according to claim 3 is characterized in that: the starting switch of the switch of described rotary dc motor and electrochemical analysis determinator is designed to linkage structure.
5. stirring control device according to claim 1 is characterized in that: described holder is an opening claw type clamp up, and the clip fixed structure is arranged by at least two elastic claw clampings and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398599U CN201076813Y (en) | 2007-06-15 | 2007-06-15 | Drop test solution agitation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398599U CN201076813Y (en) | 2007-06-15 | 2007-06-15 | Drop test solution agitation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201076813Y true CN201076813Y (en) | 2008-06-25 |
Family
ID=39568863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200398599U Expired - Fee Related CN201076813Y (en) | 2007-06-15 | 2007-06-15 | Drop test solution agitation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201076813Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735718A (en) * | 2011-04-02 | 2012-10-17 | 江苏江分电分析仪器有限公司 | Stirring measuring apparatus |
| CN108079808A (en) * | 2016-11-21 | 2018-05-29 | 广东美的生活电器制造有限公司 | Automatic mixing apparatus |
-
2007
- 2007-06-15 CN CNU2007200398599U patent/CN201076813Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735718A (en) * | 2011-04-02 | 2012-10-17 | 江苏江分电分析仪器有限公司 | Stirring measuring apparatus |
| CN108079808A (en) * | 2016-11-21 | 2018-05-29 | 广东美的生活电器制造有限公司 | Automatic mixing apparatus |
| CN108079808B (en) * | 2016-11-21 | 2024-04-30 | 广东美的生活电器制造有限公司 | Automatic rapid mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 |