CN207147597U - A kind of high-precision pipettor automatic calibrator - Google Patents
A kind of high-precision pipettor automatic calibrator Download PDFInfo
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- CN207147597U CN207147597U CN201720413045.0U CN201720413045U CN207147597U CN 207147597 U CN207147597 U CN 207147597U CN 201720413045 U CN201720413045 U CN 201720413045U CN 207147597 U CN207147597 U CN 207147597U
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- pipettor
- suction nozzle
- liquid
- feed screw
- precision
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Abstract
The utility model discloses a kind of high-precision pipettor automatic calibrator, including pipettor moving parts, liquid weighing component, suction nozzle storage assembly for storing and device pedestal.Pipettor moving parts include down-feed screw and horizontal lead screw, and the top of down-feed screw is connected with motor vertical, and the side of horizontal lead screw is connected with horizontal motor, the sliding block for installing pipettor to be measured is also set up on down-feed screw；Liquid weighing component includes high accuracy analysis balance, and liquid container is provided with high accuracy analysis balance；Suction nozzle storage assembly for storing includes being used for the suction nozzle box support for depositing disposable liquid-transfering sucker.The device possesses the pipettor moving parts of horizontal and vertical two dimensional motion ability by design, liquid weighing component and suction nozzle charging assembly are combined can realize the pipettor calibrating installation of automation in the same apparatus, improve calibrating efficiency, reduce gauging error, expand calibrating scope so that pipettor verification result has more confidence level.
Description
Technical field
It the utility model is related to pipettor Calibration Technology, and in particular to a kind of high-precision pipettor automatic calibrator is used for
Examine and determine whether pipettor to be measured meets concerned countries (world) standard.
Background technology
In biochemical test and clinical detection, pipettor is one of core devices of whole experiment flow, the shifting of pipettor
Liquid precision directly influences the whole result tested and detected.Underproof liquid relief precision can not only increase experimental error, in height
The failure of an experiment is resulted even in the biochemical test of required precision.The shifting of either commercial pipettor or laboratory internal design
Liquid device engineering machine, it is all very necessary operation to detect its liquid relief precision whether to meet concerned countries (world) standard.It is existing
Pipettor automatic calibrator is a fixed platform, does not possess horizontal and vertical two dimensional motion ability, not by liquid
Weigh assembly and suction nozzle charging assembly are integrated in same system, therefore generally require in verification process that suction nozzle first to be loaded into mould
Block, which is placed on platform, loads suction nozzle, removes suction nozzle load-on module after the completion of suction nozzle loading, then liquid weighing module is put manually
Put on platform, and the automatic pipettor for possessing vertical motion capabilities can only be examined and determine, calibrating scope is small.For a large amount of weights be present
The verifying process flow of renaturation manipulation, this will extremely expend time and manpower, and may introduce human error, influence the accurate of calibrating
Degree.
Utility model content
Purpose of utility model：The problem of existing for prior art, the utility model provide a kind of high-precision pipettor certainly
Dynamic calibrating installation.The device possesses the pipettor moving parts of horizontal and vertical two dimensional motion ability by design, and liquid is claimed
Restructuring part and suction nozzle charging assembly combine the pipettor calibrating installation that can realize automation in the same apparatus, improve calibrating effect
Rate, gauging error is reduced, expand calibrating scope so that pipettor verification result has more confidence level.
Technical scheme：To achieve these goals, such as a kind of high-precision pipettor automatic Verification described in the utility model
Device, it is characterised in that including pipettor moving parts, liquid weighing component, suction nozzle storage assembly for storing and device pedestal；The liquid
Body weigh assembly, suction nozzle storage assembly for storing are mounted side by side on device pedestal, and pipettor moving parts are arranged on liquid weighing component
With suction nozzle storage assembly for storing rear；The pipettor moving parts include down-feed screw and horizontal lead screw, and the top of down-feed screw connects
Motor vertical is connected to, the side of horizontal lead screw is connected with horizontal motor, is also set up on down-feed screw for installing pipettor to be measured
Sliding block；The liquid weighing component includes high accuracy analysis balance, and liquid container is provided with high accuracy analysis balance；It is described
Suction nozzle storage assembly for storing includes being used for the suction nozzle box support for depositing disposable liquid-transfering sucker.
Pipettor moving parts are used to fix and drive pipettor to be measured to move, wherein above and below motor vertical driving pipettor
Motion, horizontal motor driving pipettor horizontal movement.
Liquid weighing component is used for carrying out high-precision weighing to test liquid and recording result, wherein high accuracy analysis day
Flat that prepare liquid is weighed, liquid container is used to hold testing liquid.
Suction nozzle storage assembly for storing is used to deposit the disposable tip used in liquid relief.
In the pipettor moving parts, there is independent vertical movement module and horizontal movement module so that this is high-precision
Degree pipettor automatic calibrator possesses two dimensional motion ability, and independent liquid weighing component and suction nozzle storage assembly for storing are incorporated in
In same device, the automatic flow of pipettor calibrating is realized.
Further, the down-feed screw side is provided with upper limit level sensor and lower limit level sensor.Upper limit senses
Device and lower limit level sensor are used to limit pipettor up and down motion scope.
Further, liquid container top is provided with vaporization prevention trap.Vaporization prevention trap is used to prevent liquid evaporation.
Further, fixation kit is additionally provided with the pipettor moving parts, fixation kit one end is fixed on high-precision
Spend on assay balance, the other end is fixed on device pedestal.Fixation kit is used to prevent high accuracy analysis balance to examine in pipettor
Situation is moved during fixed, influences weighing operation.The fixation kit is Z-shaped brandreth, fixed high respectively by screw
The gentle device pedestal in precision analysis day.
Further, the suction nozzle box frame bottom is provided with suction nozzle box locating piece.Locating piece is used to determine each liquid relief
The putting position of suction nozzle box support when device calibrating starts.
Further, described four screws of pipettor to be measured are fixed on the sliding block of down-feed screw, the sliding block and vertical
Leading screw is engaged by screw thread.
Operation principle：Step 1：Pipettor to be measured is held within down-feed screw by the present apparatus by four screws first
Sliding block on, sliding block and down-feed screw are engaged by screw thread, when motor vertical driving down-feed screw rotation when just can drive simultaneously
Movable slider moves up and down, so as to which the pipettor to be measured promoted to be fixed on sliding block possesses the ability moved in vertical direction, its
Middle upper limit level sensor is used for the upper limit of movement for limiting pipettor to be measured, and lower limit level sensor is used for the fortune for limiting pipettor to be measured
Dynamic lower limit
Step 2：After pipettor installation to be measured, the present apparatus drives horizontal screw lead rotation to be measured to make by horizontal motor
Then pipettor horizontal movement, pipettor to be measured horizontal movement first are transported vertically downward to suction nozzle box support top fixed position
Dynamic, until pipettor to be measured successfully loads the disposable liquid-transfering sucker being stored on suction nozzle box support, wherein locating piece is used for true
The putting position of suction nozzle box support when fixed each pipettor calibrating starts；
Step 3：After the completion of disposable liquid-transfering sucker loading, the present apparatus drives pipettor horizontal movement to be measured to high accuracy point
Fixed position above balance is analysed, then pipettor vertical downward movement to be measured so that disposable liquid-transfering sucker, which enters, fills test
In the liquid container of liquid and test liquid is drawn, after the completion of absorption, pipettor upward vertical movement to be measured to initial position is high
Precision analysis balance carries out peeling operation, after the completion of peeling operation, pipettor to be measured again vertical downward movement to liquid container
Middle release test liquid, and motion comes back to initial position upwards, high accuracy analysis balance then enters to the test liquid of release
Row weighing operation simultaneously records test liquid weight, and wherein vaporization prevention trap is used to prevent the test liquid Influence of Evaporation in liquid container
Weigh, fixation kit is used to prevent high accuracy analysis balance from moving situation in pipettor verification process, influences the behaviour that weighs
Make.
Step 4：Pipettor horizontal movement to be measured unloads disposable liquid-transfering sucker to specified location.
Step 1-4 weighs flow for once complete liquid relief, and repeat step 2-4 can obtain multigroup liquid relief weighing data,
And statistical analysis is carried out, the liquid relief precision of pipettor to be measured (2) is calculated, examines and determine whether it meets concerned countries (world) mark
It is accurate.
Beneficial effect：Compared with prior art, the utility model has the following advantages that：
The utility model is applied in combination by pipettor moving parts, liquid weighing component and suction nozzle storage assembly for storing, will
Pipetting and weighing operation in pipettor verifying process flow have been incorporated in same device, realize the automatic of pipettor calibrating
Change flow.The horizontal movement ability that device possesses allows liquid weighing component and suction nozzle storage assembly for storing to be placed on simultaneously on device
It is applied in combination, improves the automaticity of device；The vertical motion capabilities possessed make it that itself does not possess up and down motion ability
Pipettor to be measured the automatic Verification of pipettor can be also realized in the automation equipment of design, expand the calibrating model of pipettor
Enclose, improve the detection capability of device.
Brief description of the drawings
Fig. 1 is a kind of structural representation of high-precision pipettor automatic calibrator of the utility model；
Fig. 2 is a kind of front view of high-precision pipettor automatic calibrator of the utility model；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 2 top view.
Embodiment
The utility model is described further with accompanying drawing with reference to embodiments.
Embodiment
As Figure 1-4, a kind of high-precision pipettor automatic calibrator, including pipettor moving parts 1, liquid weighing
Component 2, suction nozzle storage assembly for storing 3 and device pedestal 4；Liquid weighing component 2, suction nozzle storage assembly for storing 3 are mounted side by side on device pedestal 4
On, pipettor moving parts 1 are arranged on liquid weighing component 2 and the rear of suction nozzle storage assembly for storing 3.
Pipettor moving parts 1 include down-feed screw 5 and horizontal lead screw 6, and the top of down-feed screw 5 is connected with motor vertical
7, the side of horizontal lead screw 6 is connected with horizontal motor 8, and the sliding block for installing pipettor 9 to be measured is also set up on down-feed screw 5
10, pipettor 9 to be measured is fixed on 10 on the sliding block of down-feed screw 5 by four screws, and sliding block 10 and down-feed screw 5 pass through screw thread
Engagement, the side of down-feed screw 5 is provided with upper limit level sensor 15-1 and lower limit level sensor 15-2.
Liquid weighing component 2 includes high accuracy analysis balance 11, and liquid container 12 is provided with high accuracy analysis balance 11,
The top of liquid container 12 is provided with vaporization prevention trap 16.By setting fixation kit 17 to prevent balance on pipettor moving parts 2
Move, fixation kit 17 is that Z-shaped brandreth is fixed on high accuracy analysis balance 11 by screw one end, and the other end is fixed on
On device pedestal 4.
Suction nozzle storage assembly for storing 3 includes being used for the suction nozzle box support 14 for depositing disposable liquid-transfering sucker 13, suction nozzle box support 14
Bottom is provided with suction nozzle box locating piece 18.
Pipettor 9 to be measured is held within the sliding block 10 of down-feed screw 5 by the present apparatus by four screws first, sliding
Block 10 and down-feed screw 5 are engaged by screw thread, and sliding block just can be driven simultaneously when motor vertical 7 drives down-feed screw 5 to rotate
10 move up and down, and possess the ability moved in vertical direction so as to promote to be fixed on the pipettor to be measured 9 on sliding block 19, wherein
Upper limit level sensor 15-1 is used for the upper limit of movement for limiting pipettor to be measured, and lower limit level sensor 15-2 is used to limit liquid relief to be measured
The motion lower limit of device
After the installation of pipettor 9 to be measured, the present apparatus drives horizontal screw lead rotation to make liquid relief to be measured by horizontal motor 8
Then the horizontal movement of device 9, pipettor 9 to be measured horizontal movement first are transported vertically downward to the top fixed position of suction nozzle box support 14
Dynamic, until pipettor 9 to be measured successfully loads the disposable liquid-transfering sucker 13 being stored on suction nozzle box support 14, wherein suction nozzle box are determined
Position block 18 is used for the putting position for determining suction nozzle box support 14 when each pipettor calibrating starts；
After the completion of disposable liquid-transfering sucker 13 loads, the present apparatus drives the horizontal movement of pipettor 9 to be measured to high accuracy analysis
The top fixed position of balance 11, the then vertical downward movement of pipettor 9 to be measured so that disposable liquid-transfering sucker 13, which enters, fills survey
In the liquid container 12 of test solution body and test liquid is drawn, after the completion of absorption, the upward vertical movement of pipettor 9 to be measured to initial bit
Put, high accuracy analysis balance 11 carries out peeling operation, and after the completion of peeling operation, vertical downward movement is extremely again for pipettor 9 to be measured
Test liquid is discharged in liquid container 12, and motion comes back to initial position upwards, high accuracy analysis balance 11 is then to release
Test liquid carry out weighing operation and record test liquid weight, wherein vaporization prevention trap 16 is used to prevent the survey in liquid container
Test solution evacuator body influences to weigh, and fixation kit 17 is used to prevent high accuracy analysis balance from moving in pipettor verification process
Situation, influence weighing operation.
The horizontal movement of pipettor 9 to be measured unloads disposable liquid-transfering sucker 13, completed once complete to calibrating installation low order end
Liquid relief weigh flow.Multigroup liquid relief weighing data can be obtained by repeating above-mentioned Overall Steps, and carry out statistical analysis, be calculated
The liquid relief precision of pipettor 9 to be measured, examines and determine whether it meets concerned countries (world) standard, i.e., JJG 646-2006 pipettors are examined and determine
Code and ISO 8655International Standard.
Claims (8)
1. a kind of high-precision pipettor automatic calibrator, it is characterised in that including pipettor moving parts (1), liquid weighing
Component (2), suction nozzle storage assembly for storing (3) and device pedestal (4)；The liquid weighing component (1), suction nozzle storage assembly for storing (3) are side by side
On device pedestal (4), after pipettor moving parts (1) are arranged on liquid weighing component (2) and suction nozzle storage assembly for storing (3)
Side；The pipettor moving parts (1) include down-feed screw (5) and horizontal lead screw (6), and the top of down-feed screw (5) is connected with
Motor vertical (7), the side of horizontal lead screw (6) are connected with horizontal motor (8), also set up on down-feed screw (5) and treated for installation
Survey the sliding block (10) of pipettor (9)；The liquid weighing component (2) includes high accuracy analysis balance (11), high accuracy analysis day
Liquid container (12) is provided with flat (11)；The suction nozzle storage assembly for storing (3) includes being used to deposit disposable liquid-transfering sucker (13)
Suction nozzle box support (14).
2. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the down-feed screw (5)
Side is provided with upper limit level sensor (15-1) and lower limit level sensor (15-2).
3. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the liquid container (12)
Top is provided with vaporization prevention trap (16).
4. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the liquid weighing component
(2) fixation kit (17) is additionally provided with, fixation kit (17) one end is fixed on high accuracy analysis balance (11), and the other end is solid
It is scheduled on device pedestal (4).
5. high-precision pipettor automatic calibrator according to claim 4, it is characterised in that the fixation kit (17)
For Z-shaped brandreth, high accuracy analysis balance (11) and device pedestal (4) are fixed by screw respectively.
6. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the suction nozzle box support
(14) bottom is provided with suction nozzle box locating piece (18).
7. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the pipettor to be measured
(9) four screws are fixed on the sliding block (10) of down-feed screw (5).
8. high-precision pipettor automatic calibrator according to claim 1, it is characterised in that the sliding block (10) and hang down
Raw silk rings thick stick (5) is engaged by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720413045.0U CN207147597U (en) | 2017-04-19 | 2017-04-19 | A kind of high-precision pipettor automatic calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720413045.0U CN207147597U (en) | 2017-04-19 | 2017-04-19 | A kind of high-precision pipettor automatic calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207147597U true CN207147597U (en) | 2018-03-27 |
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ID=61659161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720413045.0U Active CN207147597U (en) | 2017-04-19 | 2017-04-19 | A kind of high-precision pipettor automatic calibrator |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969813A (en) * | 2017-04-19 | 2017-07-21 | 东南大学 | A kind of high-precision pipettor automatic calibrator |
-
2017
- 2017-04-19 CN CN201720413045.0U patent/CN207147597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969813A (en) * | 2017-04-19 | 2017-07-21 | 东南大学 | A kind of high-precision pipettor automatic calibrator |
| CN106969813B (en) * | 2017-04-19 | 2024-01-23 | 东南大学 | Automatic calibrating device of high-precision pipettor |
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