CN202516488U

CN202516488U - Solution preparation instrument

Info

Publication number: CN202516488U
Application number: CN2012201749606U
Authority: CN
Inventors: 孔繁强
Original assignee: Individual
Current assignee: SHANGHAI LABHANDS TRADE CO Ltd
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2012-11-07
Anticipated expiration: 2022-04-24

Abstract

The utility model discloses a solution preparation instrument. The solution preparation instrument comprises a controller, a first motor, a second motor, a third motor, an injector, a changeover valve, a solution bottle, a pipeline, a sample introduction pin, a clamp plate and a sample disk, wherein the controller is in control connection with the first motor, the second motor and the third motor respectively; the first motor is in control connection with the injector and the changeover valve respectively; the second motor is in control connection with the sample introduction pin; the third motor is in control connection with the sample disk; and one end of the changeover valve is connected with the solution bottle, and the other end of the changeover valve is communicated with the sample introduction pin through a pipeline. According to the solution preparation instrument, a high-accuracy injector is controlled to be used as a liquid power control system of the whole flow path through a high-accuracy step motor to finish an automatic liquid suction process, an automatic liquid discharge process, an automatic mixing process, an automatic liquid transfer process, an automatic gas evacuation process and an automatic flow path cleaning process, so that a standard solution can be easily prepared, mixed and distributed at a constant volume automatically, and operation personnel can obtain a standard solution with required concentration only by a simple preparation method.

Description

The solution preparation instrument

Technical field

The utility model relates to the solution formulation art, and a kind of solution preparation instrument is provided especially.

Background technology

Along with economic development, the people are to environment, and food security etc. are also more and more paid attention to, and the science and technology in each item field is also in progress at full speed; Breadboard workload is also progressively strengthening, and the preparation unanimity of standard liquid all is to repeat and loaded down with trivial details work in a lot of laboratories, and the different detection project often will be prepared different standard liquids; Even the similar detection project also will be whenever preparing standard solution again after a period of time, production standard curve, conventional method; Use the pipette, extract mother liquor, transfer to volumetric flask after, add the dilution constant volume; All process manual operations not only need contact a large amount of poisonous and harmful reagent, and it is healthy to influence operating personnel; And each operation link all has artificial uncertain factor, influences data result, and all operations process wastes time and energy.Though liquid-transfering gun use now is more universal, its uncertain error also can cause trouble to lab assistant, equally also takes time and effort.

Summary of the invention

The purpose of the utility model is to provide a kind of solution preparation instrument, and full-automatic flow process realizes the solution preparation, can increase work efficiency well, reduces contact poisonous and harmful reagent, reduces the chemical reagent consumption, practices thrift cost, increases the data stabilization reliability.

For realizing above-mentioned purpose, the utility model provides a kind of solution preparation instrument, comprises controller, first motor; Second motor, the 3rd motor, syringe, transfer valve; The solution bottle, pipeline, sample introduction needle; Clamp and sample disc, said controller is said first motor of control connection respectively, said second motor and said the 3rd motor; Said first motor is said syringe of control connection and said transfer valve respectively, the said sample introduction needle of the said second motor control connection, the said sample disc of said the 3rd motor control connection; One end of said transfer valve connects said solution bottle, and the other end of said transfer valve is communicated with sample introduction needle through said pipeline.

Further, a vacancy mouth and some bottlenecks of putting are set on the said sample disc.

Further, under said sample disc, be provided with one and wash needle tray, said wash to be provided with in the needle tray wash needle tract and stream.

The pin Position Design of washing of sample disc becomes the vacancy mouth, and this design mainly is to wash needle tray for sample introduction needle can directly be inserted in this position,, wash and not only clean the sample introduction needle inwall in the needle tray and simultaneously also clean the sample introduction needle outer wall, and waste liquid is flowed out by stream, be collected in the waste liquid bottle.

Further, on the needle stand of said sample introduction needle, clamp is set.

Clamp is fixed on the needle stand that moves up and down with sample introduction needle, and when preventing that the sample introduction needle insertion from extracting, sample bottle is taken out of.

Further, the volume in the said pipeline is at least 1.2 times of volume of said syringe.

Further, said pipeline adopts the FEP material.

Further, the shape of said pipeline is a spiral surrounding.

Pipeline guarantees to have enough volumetric spaces to carry out the gas bag mixing and the liquid mixing is told in imbibition, and liquid that can not arrives syringe simultaneously, prevents cross pollution.

In sum, the utility model reaches the extraction of liquid by each motor operations flow process of the unified control of controller, shifts, and dilution mixes, and the preparation of standard liquid is accomplished in the cleaning of sample introduction needle.The shift motion of first motor control syringe the inside piston and the solvent transfer valve above the syringe, second motor is controlled moving up and down and locating of sample introduction needle, the rotation and the location of the 3rd motor control sample disc.The automatic preparation of standard liquid is accomplished in each motor collaborative work of the unified control of controller, realizes the quantitative transfer of solution, and sample introduction needle is not done any moving horizontally, and forwards the position of switch sample bottle to through sample disc.

Compared with prior art, the advantage of the utility model is:

1, improves the operating efficiency of solution preparation, save time.

2, accurately prepare required solution, reduce human error, high standard reaches user's request, reduces the chemical reagent consumption, practices thrift cost.

3, the contact poisonous and harmful reagent that reduces a staff guarantees staff's safety.

This practicality newly can be widely used in medicine, chemical industry, and food inspection, environment measuring, colleges and universities in the lab analysis work in fields such as R&D institution, help the experimenter accurate, easily, efficiently accomplish the preparation of standard liquid.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the pipeline sketch map of the utility model;

Fig. 3 is the sample disc part sketch map of the utility model;

Fig. 4 is the part-structure sketch map of the utility model;

Fig. 5 be the utility model wash the needle tray sketch map.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is made detailed explanation, but following enforcement row are not to be used to limit the present invention.

Fig. 1 is the structural representation of the utility model; Fig. 2 is the pipeline sketch map of the utility model; Fig. 3 is the sample disc part sketch map of the utility model; Fig. 4 is the part-structure sketch map of the utility model; Fig. 5 be the utility model wash the needle tray sketch map.

See also Fig. 1 to Fig. 5, a kind of solution preparation instrument comprises controller 40, the first motors 10; Second motor, 20, the three motors 30, syringe 11, transfer valve 12; Solution bottle 13, pipeline 50, sample introduction needle 21; Clamp 22 and sample disc 31, controller 40 is control connection first motor, 10, the second motors 20 and the 3rd motor 30 respectively; First motor 10 is control connection syringe 11 and transfer valve 12, the second motors 20 control connection sample introduction needle 21, the three motors 30 control connection sample disc 31 respectively; One end of transfer valve 12 connects solution bottle 13, and the other end of transfer valve 12 is communicated with sample introduction needle 21 through pipeline 50.

One vacancy mouth 32 and some bottlenecks 33 of putting are set on the sample disc 31.Under sample disc 31, be provided with one and wash needle tray 60, and wash to be provided with in the needle tray 60 and wash needle tract 61 and stream 62.The pin Position Design of washing of sample disc 31 becomes vacancy mouth 32; This design mainly is to wash needle tray 60 for sample introduction needle 21 can directly be inserted in this position; Wash and not only clean sample introduction needle 21 inwalls in the needle tray 60 and also clean simultaneously sample introduction needle 21 outer walls, and waste liquid is flowed out by stream 62, be collected in the waste liquid bottle 70.Clamp 22 is set on the needle stand of sample introduction needle 21.Clamp 22 is fixed on the needle stand that moves up and down with sample introduction needle 21, and when preventing that sample introduction needle 21 insertions from extracting, sample bottle is taken out of.

Volumes in the pipeline 50 are at least 1.2 times of volume of syringe 11.Pipeline 50 adopts the FEP material.The shape of pipeline 50 is spiral surroundings.Pipeline 50 guarantees to have enough volumetric spaces to carry out the gas bag mixing and the liquid mixing is told in imbibition, and liquid that can not arrives syringe 11 simultaneously, prevents cross pollution.

The utility model reaches the extraction of liquid by controller 40 unified each motor operations flow process of control, shifts, and dilution mixes, and the preparation of standard liquid is accomplished in the cleaning of sample introduction needle 21.The shift motion and 12, the second motors 20 of the solvent transfer valve above the syringe 11 of first motor, 10 control syringes, 11 the inside pistons are controlled moving up and down and locating of sample introduction needle 21, the rotation and the location of the 3rd motor 30 control sample disc 31.The automatic preparation of standard liquid is accomplished in controller 40 unified each motor collaborative work of control, realizes the quantitative transfer of solution, and sample introduction needle 21 is not done any moving horizontally, and forwards the position of switch sample bottle to through sample disc 31.

In getting the sample bottle that mother liquor is positioned over 2ml, this sample bottle is positioned over the A place in the bottleneck 33 of putting in the sample disc 31, six empty sample bottles are placed on A1, A2, A3, A4, A5, the A6 place of putting in the bottleneck 33 respectively; Get dilution and be placed in the solution bottle 13, according to waiting that the editing run mode that requires that disposes solution starts the solution preparation instrument, sample disc 31 is rotated; Make position A place sample introduction needle 21 times, draw quantitative mother liquor, sample introduction needle 21 resets; Sample disc 31 is rotated, and makes position A1 place sample introduction needle 21 times, and sample introduction needle 21 is added mother liquor to A1 position sample bottle; Syringe 11 adds dilution again in the sample bottle of A1 position then, and the liquid mixing is told in bubble mixing or imbibition then, and sample introduction needle 21 resets; The dilution configuration of mother liquor in the A1 accomplished, and repeats the dilute solution in the sample bottle of preparing A 2 to A6 positions equally.

The utility model is through high accuracy step pitch Electric Machine Control high accuracy syringe, and the hydrodynamic control system as overall flow paths accomplishes automatic imbibition, tells liquid automatically; Automatically mix, automated fluid shifts, and stream is cleaned in the automatic gas emptying automatically; Easily realize the automatic configuration of standard liquid, constant volume mixes automatically automatically; Automatically distribute, operating personnel are as long as the simple editing method just can obtain the concentration value standard liquid of oneself wanting.

The utility model preferred embodiment and application examples just are used for helping to set forth the utility model.Preferred embodiment and application examples do not have all details of detailed descriptionthe, do not limit this utility model yet and are merely the described specific embodiment.Obviously, according to the content of this specification, can do a lot of modifications and variation.These embodiment and application examples are chosen and specifically described to this specification, is principle and practical application in order to explain the utility model better, thereby person skilled can be utilized the utility model well under making.The utility model only receives the restriction of claims and four corner and equivalent.More than disclosed several specific embodiments and the application examples that is merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.

Claims

1. a solution preparation instrument comprises controller, first motor, second motor, the 3rd motor; Syringe, transfer valve, solution bottle, pipeline, sample introduction needle; And sample disc, it is characterized in that said controller is said first motor of control connection respectively, said second motor and said the 3rd motor; Said first motor is said syringe of control connection and said transfer valve respectively, the said sample introduction needle of the said second motor control connection, the said sample disc of said the 3rd motor control connection; One end of said transfer valve connects said solution bottle, and the other end of said transfer valve is communicated with sample introduction needle through said pipeline.

2. solution preparation instrument as claimed in claim 1 is characterized in that, a vacancy mouth and some bottlenecks of putting are set on the said sample disc.

3. solution preparation instrument as claimed in claim 1 is characterized in that, under said sample disc, is provided with one and washes needle tray, said wash to be provided with in the needle tray wash needle tract and stream.

4. solution preparation instrument as claimed in claim 1 is characterized in that, on the needle stand of said sample introduction needle, clamp is set.

5. solution preparation instrument as claimed in claim 1 is characterized in that, the volume in the said pipeline is at least 1.2 times of volume of said syringe.

6. solution preparation instrument as claimed in claim 5 is characterized in that, said pipeline adopts the FEP material.

7. solution preparation instrument as claimed in claim 5 is characterized in that the shape of said pipeline is a spiral surrounding.