CN206848036U - A kind of high-precision constant volume dilution device - Google Patents
A kind of high-precision constant volume dilution device Download PDFInfo
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- CN206848036U CN206848036U CN201720744396.XU CN201720744396U CN206848036U CN 206848036 U CN206848036 U CN 206848036U CN 201720744396 U CN201720744396 U CN 201720744396U CN 206848036 U CN206848036 U CN 206848036U
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Abstract
The utility model discloses a kind of high-precision constant volume dilution device, including：Main control board（6）, detecting liquid level module, sample injection module and solution mixing module, the sample injection module includes and volumetric flask（18）One-to-one curved sample introduction needle（14）, the curved sample introduction needle（14）Bottom liquid outlet extends respectively to corresponding volumetric flask（18）In, the detecting liquid level module includes infrared range finder（13）With non-contact infrared detecting liquid level module, the infrared range finder（13）It is located at volumetric flask respectively（18）The top of opening, the non-contact infrared detecting liquid level module are separately positioned on volumetric flask（18）Side.By the above-mentioned means, ensuring the precision of constant volume dilution, user no longer needs to be artificially injected sample, and automaticity is high, there is provided more rapidly, more accurately constant volume dilutes mode.
Description
Technical field
Solvent samples constant volume and dilution field are the utility model is related to, more particularly to a kind of high-precision constant volume dilution dress
Put.
Background technology
In laboratory sample pretreatment process, a kind of solvent is diluted into constant volume to certain volume, can be accurate in operating process
Ground judges dilute sample from volumetric flask graduation position, and sample concave meniscus and quarter can be appropriately determined when being diluted to assigned scale
Degree it is horizontal most important, therefore can facilitate user's precise volume setting and can auto injection dilution equipment arise at the historic moment.
In the market diluent facilities common at present, it is all sample volume that such as Hamilton, interscience, which dilute instrument,
Diluted with the proportioning of volume, and much test dilution needs is constant volume dilution, the proportioning dilution of volume and volume is not examined
Consider the similar compatibility of sample and sample room（Two kinds of sample mixed volume solution own vols change）, so when a lot
Laboratory is waited still by the way of manual constant volume come dilute sample.But in the mode of manual constant volume, different people dilutes result
Again different, because different people observes, scale is inconsistent, the sample introduction speed of addition sample is also inconsistent, causes with a batch of
Constant volume dilution repeatability is poor.
Utility model content
The utility model effectively reduces sample mainly solving the technical problems that a kind of high-precision constant volume dilution device of offer
Human error in constant volume dilution, improve the precision of sample constant volume dilution.
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of high-precision constant volume is provided
Dilution device, including：Main control board（6）, detecting liquid level module, sample injection module and solution mixing module, the solution
Mixing module includes several volumetric flasks（18）, the sample injection module includes and volumetric flask（18）One-to-one curved sample introduction
Pin（14）, the curved sample introduction needle（14）Bottom liquid outlet extends respectively to corresponding volumetric flask（18）In, the detecting liquid level
Module includes infrared range finder（13）With non-contact infrared detecting liquid level module, the infrared range finder（13）Point
Wei Yu not volumetric flask（18）The top of opening, the non-contact infrared detecting liquid level module are separately positioned on volumetric flask（18）'s
Side, the infrared range finder（13）With non-contact infrared detecting liquid level module respectively with main control board（6）Linearly
Connection.
In one preferred embodiment of the utility model, the sample injection module also includes syringe（2）, syringe pushes away
Note screw rod（3）, stepper motor（4）, 23 direction changeover valve modules（21）, sample feeding pipe（10）And pipe joint（11）, described 2
3 direction changeover valve modules（21）Connection is arranged on syringe（2）Liquid outlet, the pipe joint（11）It is arranged on curved sample introduction
Pin（14）Top inlet, the sample feeding pipe（10）23 direction changeover valve modules corresponding to being connected to（21）Connect with pipeline
Joint（11）Between, the syringe injects screw rod（3）With syringe（2）Bar of injecting be connected and drive the axial direction for injecting bar
Inject action, the stepper motor（4）Screw rod is injected with syringe（3）It is connected using belt and drives multiple syringes simultaneously
Inject screw rod（3）Rotary work.
In one preferred embodiment of the utility model, the sample injection module also includes and 23 direction changeover valve modules
（21）The valve control motor being connected（20）.
In one preferred embodiment of the utility model, the sample injection module also includes driving stepper motor（5）, institute
State driving stepper motor（5）Linearly connected is in main control board（6）With stepper motor（4）Between.
In one preferred embodiment of the utility model, the sample injection module also includes sample introduction needle jump ring（12）, institute
State sample introduction needle jump ring（12）It is set in curved sample introduction needle（14）On be fixed.
In one preferred embodiment of the utility model, the non-contact infrared detecting liquid level module includes contactless
Infrared light supply transmitter（16）With infrared source circuit plate（15）, the non-contact infrared light source emitter（16）It is vertical respectively
It is arranged on volumetric flask（18）Side, the non-contact infrared light source emitter（16）Positioned at infrared source circuit plate（15）It is upper or
Person and infrared source circuit plate（15）Linearly connected, the infrared source circuit plate（15）With main control board（6）It is connected.
In one preferred embodiment of the utility model, the solution mixing module also includes rotation mixing motor driver
（17）, volumetric flask pallet（22）With rotation mixing motor（19）, the volumetric flask pallet（22）It is arranged on rotation mixing motor
（19）On, the volumetric flask（18）Volumetric flask pallet is arranged concentrically on respectively（22）On.
In one preferred embodiment of the utility model, the rotation mixing motor driver（17）It is connected to rotation mixing
Motor（19）With main control board（6）Between.
In one preferred embodiment of the utility model, the high-precision constant volume dilution device also includes power supply（8）
And power outlet（9）, the main control board（6）Including a power board（7）, the power supply（8）It is connected to electricity
Source control panel（7）With power outlet（9）Between.
In one preferred embodiment of the utility model, the high-precision constant volume dilution device also includes liquid crystal touch control screen
（1）And mini-printer（23）, the liquid crystal touch control screen（1）And mini-printer（23）Respectively with main control board（6）Linearly
Connection.
The beneficial effects of the utility model are：A kind of high-precision constant volume dilution device that the utility model is pointed out, passes through sample
Product injection module comes from trend volumetric flask（18）Middle addition dilute sample, and uninterrupted is controlled, using detecting liquid level module certainly
It is dynamic to judge volumetric flask（18）Middle sample volume, and volumetric flask can be obtained automatically（18）The position of high scale and liquid level, it is ensured that constant volume
The precision of dilution, user no longer need to be artificially injected sample, and automaticity is high, there is provided more rapidly, more accurately constant volume
Dilution mode.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is a kind of side view of the high-precision preferred embodiment of constant volume dilution device one of the utility model；
Fig. 2 is a kind of front view of the high-precision preferred embodiment of constant volume dilution device one of the utility model；
The detection operations schematic diagram of detecting liquid level module in a kind of high-precision constant volume dilution device of Fig. 3 the utility model.
Embodiment
The technical scheme in the embodiment of the utility model will be clearly and completely described below, it is clear that described
Embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Fig. 1 to Fig. 3 is referred to, the utility model embodiment includes：
A kind of high-precision constant volume dilution device, including：Main control board（6）, detecting liquid level module, sample injection module and
Solution mixing module, the solution mixing module include several volumetric flasks（18）, the sample injection module includes and volumetric flask
（18）One-to-one curved sample introduction needle（14）, the curved sample introduction needle（14）Bottom liquid outlet extends respectively to corresponding capacity
Bottle（18）In, curved sample introduction needle（14）Tiltedly point to volumetric flask in end（18）Inwall, sample pass through curved sample introduction needle（14）Injection is held
Measuring bottle（18）During, sample elder generation contact capacity bottle（18）Bottle wall and guide formula injection, with traditional manual wall built-up
Formula injection is consistent, and avoids the sputtering between solution from chemically reacting.
The detecting liquid level module includes infrared range finder（13）It is described with non-contact infrared detecting liquid level module
Infrared range finder（13）It is located at volumetric flask respectively（18）The top of opening, the non-contact infrared detecting liquid level module point
Volumetric flask is not arranged on it（18）Side, the infrared range finder（13）Distinguish with non-contact infrared detecting liquid level module
With main control board（6）Linearly connected, detection circuit are integrated in main control board（6）On.Pass through contactless detecting liquid level mould
Block is first to volumetric flask residing for solution（18）Interior position gives warning in advance, then passes through infrared range finder（13）Carry out accurate distance
Confirm, the final level for ensureing solvent liquid concave surface and assigned scale, lifting operating efficiency and dilution precision.
The sample injection module also includes syringe（2）, syringe inject screw rod（3）, stepper motor（4）, 23 it is logical
Switch valve module（21）, sample feeding pipe（10）And pipe joint（11）, 23 direction changeover valve modules（21）Connection is arranged on
Syringe（2）Liquid outlet, the pipe joint（11）It is arranged on curved sample introduction needle（14）Top inlet, the sample introduction
Pipe（10）23 direction changeover valve modules corresponding to being connected to（21）With pipe joint（11）Between,
The sample injection module also includes and 23 direction changeover valve modules（21）The valve control motor being connected（20）, profit
Use main control board（6）With valve control motor（20）It is connected, automatically controls sample feeding pipe（10）Break-make.The syringe is injected
Screw rod（3）With syringe（2）Inject bar be connected and carry out axially inject action, syringe（2）Interior solution is added to
Volumetric flask（18）It is interior.
The stepper motor（4）Screw rod is injected with syringe（3）It is connected using belt and drives multiple syringes simultaneously
Inject screw rod（3）Rotary work, the sample injection module also includes driving stepper motor（5）, the driving stepper motor
（5）Linearly connected is in main control board（6）With stepper motor（4）Between, a stepper motor（4）Multiple passages can be driven
Syringe injects screw rod（3）Bolus syringe（2）, realize that multichannel constant volume dilutes, substantially increase operating efficiency, ensure year-on-year
The constant volume dilution of multiple passage samples in the case of example.
The sample injection module also includes sample introduction needle jump ring（12）, the sample introduction needle jump ring（12）It is set in curved sample introduction
Pin（14）On be fixed, it is and easy to adjust, to different capabilities bottle（18）High degree of adaptability it is good.
The non-contact infrared detecting liquid level module includes non-contact infrared light source emitter（16）And infrared light supply
Circuit board（15）, the non-contact infrared light source emitter（16）Volumetric flask is vertically arranged in respectively（18）Side, it is described non-
Contact type infrared optical source transmitter（16）Positioned at infrared source circuit plate（15）It is upper or with infrared source circuit plate（15）Linearly
Connection, the infrared source circuit plate（15）With main control board（6）It is connected, non-contact infrared light source emitter（16）
With infrared source circuit plate（15）The information detected is sent to main control board（6）Handled.
The solution mixing module also includes rotation mixing motor driver（17）, volumetric flask pallet（22）Mixed with rotation
Motor（19）, the volumetric flask pallet（22）It is arranged on rotation mixing motor（19）On, the volumetric flask（18）Set with one heart respectively
Put in volumetric flask pallet（22）On, the rotation mixing motor driver（17）It is connected to rotation mixing motor（19）With master control electricity
Road plate（6）Between, control rotation mixing motor（19）Rotation, drive volumetric flask（18）Rotation, be sufficiently mixed.
The high-precision constant volume dilution device also includes power supply（8）And power outlet（9）, the main control board
（6）Including a power board（7）, the power supply（8）It is connected to power board（7）With power outlet（9）Between,
Facilitate the access of externally fed circuit.
The high-precision constant volume dilution device also includes liquid crystal touch control screen（1）And mini-printer（23）, the liquid crystal touches
Control screen（1）And mini-printer（23）Respectively with main control board（6）Linearly connected.User only needs to select volumetric flask,
Liquid crystal touch control screen（1）Upper input capacity bottle scle height, clicks on constant volume dilution, and the constant volume that equipment is automatically performed certain sample size is dilute
Release, user no longer needs to be artificially injected sample, no longer artificially carries out sight and is observed with concave meniscus, to be provided faster using crowd
Prompt, more easily laboratory sample constant volume dilutes.User can pass through liquid crystal touch control screen（1）On touch control procedure, be diluted
Constant volume parameter setting, the supplemental characteristic that constant volume dilutes can also be printed record and preserved.
Operation principle of the present utility model is：
User is by volumetric flask（18）In added mother liquor, afterwards by volumetric flask（18）It is placed on volumetric flask pallet（22）On,
The scle height of recording capacity bottle, then using liquid crystal touch control screen（1）Operation input scale size, startup program, equipment are automatic
Control sample injection module, push-and-pull syringe（2）, dilution is injected into volumetric flask（18）In；
As shown in figure 3, when sample concave meniscus peak R is detected from volumetric flask by non-contact infrared detecting liquid level module
（18）When set scale only has the 1-2cm to go out, change sample and inject speed, infrared range finder（13）Start detection concave meniscus
Minimum point L values, depth parameter is obtained, then carry out calculating judgement concave meniscus minimum point L values and volumetric flask by software（18）Carve
Stop sample injection when spending highly consistent, then equipment automatic start rotation mixing motor（19）Drive volumetric flask pallet（22）Rotation
Turn, volumetric flask pallet（22）On volumetric flask（18）And then rotate, mixed sample.
In summary, a kind of high-precision constant volume dilution device that the utility model is pointed out, automaticity is high, reduces people
Work cost, improve the constant volume dilution control accuracy and uniformity of same batch volume.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, similarly it is included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. high-precision constant volume dilution device, it is characterised in that including：Main control board（6）, detecting liquid level module, sample Injection module and solution mixing module, the solution mixing module include several volumetric flasks（18）, the sample injection module bag Include and volumetric flask（18）One-to-one curved sample introduction needle（14）, the curved sample introduction needle（14）Bottom liquid outlet extends respectively to Corresponding volumetric flask（18）In, the detecting liquid level module includes infrared range finder（13）Visited with non-contact infrared liquid level Survey module, the infrared range finder（13）It is located at volumetric flask respectively（18）The top of opening, the non-contact infrared liquid Face detecting module is separately positioned on volumetric flask（18）Side, the infrared range finder（13）With non-contact infrared liquid level Detecting module respectively with main control board（6）Linearly connected.
- 2. high-precision constant volume dilution device according to claim 1, it is characterised in that the sample injection module also includes Syringe（2）, syringe inject screw rod（3）, stepper motor（4）, 23 direction changeover valve modules（21）, sample feeding pipe（10）And pipeline Connector（11）, 23 direction changeover valve modules（21）Connection is arranged on syringe（2）Liquid outlet, the pipe joint （11）It is arranged on curved sample introduction needle（14）Top inlet, the sample feeding pipe（10）23 logical switchings corresponding to being connected to Valve module（21）With pipe joint（11）Between, the syringe injects screw rod（3）With syringe（2）Bar of injecting be connected And the axial direction for injecting bar is driven to inject action, the stepper motor（4）Screw rod is injected with syringe（3）Be connected using belt and Multiple syringes are driven to inject screw rod simultaneously（3）Rotary work.
- 3. high-precision constant volume dilution device according to claim 2, it is characterised in that the sample injection module also includes With 23 direction changeover valve modules（21）The valve control motor being connected（20）.
- 4. high-precision constant volume dilution device according to claim 2, it is characterised in that the sample injection module also includes Driving stepper motor（5）, the driving stepper motor（5）Linearly connected is in main control board（6）With stepper motor（4）Between.
- 5. high-precision constant volume dilution device according to claim 1, it is characterised in that the sample injection module also includes Sample introduction needle jump ring（12）, the sample introduction needle jump ring（12）It is set in curved sample introduction needle（14）On be fixed.
- 6. high-precision constant volume dilution device according to claim 1, it is characterised in that the non-contact infrared liquid level is visited Surveying module includes non-contact infrared light source emitter（16）With infrared source circuit plate（15）, the non-contact infrared light source Transmitter（16）Volumetric flask is vertically arranged in respectively（18）Side, the non-contact infrared light source emitter（16）Positioned at infrared Light source circuit board（15）It is upper or with infrared source circuit plate（15）Linearly connected, the infrared source circuit plate（15）With master control Circuit board（6）It is connected.
- 7. high-precision constant volume dilution device according to claim 1, it is characterised in that the solution mixing module also includes Rotate mixing motor driver（17）, volumetric flask pallet（22）With rotation mixing motor（19）, the volumetric flask pallet（22）If Put in rotation mixing motor（19）On, the volumetric flask（18）Volumetric flask pallet is arranged concentrically on respectively（22）On.
- 8. high-precision constant volume dilution device according to claim 7, it is characterised in that the rotation mixing motor driver （17）It is connected to rotation mixing motor（19）With main control board（6）Between.
- 9. high-precision constant volume dilution device according to claim 1, it is characterised in that the high-precision constant volume dilution device Also include power supply（8）And power outlet（9）, the main control board（6）Including a power board（7）, the confession Power supply（8）It is connected to power board（7）With power outlet（9）Between.
- 10. high-precision constant volume dilution device according to claim 1, it is characterised in that the high-precision constant volume dilution dress Putting also includes liquid crystal touch control screen（1）And mini-printer（23）, the liquid crystal touch control screen（1）And mini-printer（23）Respectively with Main control board（6）Linearly connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720744396.XU CN206848036U (en) | 2017-06-26 | 2017-06-26 | A kind of high-precision constant volume dilution device |
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| CN201720744396.XU CN206848036U (en) | 2017-06-26 | 2017-06-26 | A kind of high-precision constant volume dilution device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271251A (en) * | 2017-06-26 | 2017-10-20 | 南京清研六迪科学仪器有限公司 | A kind of high-precision constant volume dilution device |
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2017
- 2017-06-26 CN CN201720744396.XU patent/CN206848036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271251A (en) * | 2017-06-26 | 2017-10-20 | 南京清研六迪科学仪器有限公司 | A kind of high-precision constant volume dilution device |
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