CN202974959U

CN202974959U - Full-automatic gas chromatography sample injector

Info

Publication number: CN202974959U
Application number: CN 201220635618
Authority: CN
Inventors: 王成文
Original assignee: FINETEC INSTRUMENTS Co Ltd
Current assignee: FINETEC INSTRUMENTS Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-06-05
Anticipated expiration: 2022-11-26

Abstract

The utility model relates to a special sample injection device for sample analysis by a gas chromatograph, and particularly discloses a full-automatic gas chromatography sample injector. The full-automatic gas chromatography sample injector comprises a pedestal, wherein a sample disc and a sample injection tower are mounted on the pedestal, the sample disc is provided with a sample bottle, a cleaning bottle and a waste liquid bottle, and the sample injection tower is provided with a sample injection slide block; the sample injection slide block is fixed on the sample injection tower by a mounting shaft, and a step motor I, a pulley I, a synchronous belt I and a slide block fixing piece are fixed on the sample injection tower; the step motor I and the pulley I are interconnected through the synchronous belt I, the synchronous belt I is fixed on the slide block fixing piece, the slide block fixing piece is connected with a sample injection slide block, and a sample injection needle seat assembly is mounted on the sample injection slide block. The full-automatic gas chromatography sample injector overcomes multiple defects of manual sample injection; and the automatic sample injector further can replace the manual mode to finish a series of set sampling tasks, and thus, working efficiency is improved greatly, and the precision is high.

Description

Full-automatic gas phase chromatogram automatic sampler

Technical field

The sampling device of special use when the utility model relates to a kind of gas chromatograph analytic sample, specifically a kind of full-automatic gas phase chromatogram automatic sampler.

Background technology

At present, the most domestic gas chromatograph all adopts the hand sampling analysis, and the gas chromatographic sample introduction technology is higher to operating personnel's technical requirement, and a skilled gas chromatographic sample introduction technician generally needs the training of time even more of a specified duration half a year at least.It is more frequent that yet the technician of domestic medium and small sized enterprises is flowed, and the situation of technology post still vacant often occurs.In addition, also exist the staff to cause sample size inaccurate because of sense of vision factor, or because operating the problems such as the unskilled sample introduction speed that causes is unstable.

The utility model content

For the problems referred to above, the utility model provides a kind of volume small and exquisite, easy for installation, highly versatile, the full-automatic gas phase chromatogram automatic sampler of stable performance.

the utility model is achieved through the following technical solutions: a kind of full-automatic gas phase chromatogram automatic sampler, comprise base, on described base, sample disc is installed, the sample introduction tower, on described sample disc, sample bottle is set, washer bottle, waste liquid bottle, the sample introduction slide block is installed on described sample introduction tower, described sample introduction slide block is fixed on the sample introduction tower by installation shaft, fixing stepper motor I also on described sample introduction tower, pulley I, Timing Belt I, sliding dowel block, described stepper motor I is connected by Timing Belt I with pulley I, described Timing Belt I is fixed on sliding dowel block, described sliding dowel block is connected with the sample introduction slide block, sample introduction needle stand assembly is installed on described sample introduction slide block.

As preferably, stepper motor II, pulley II, Timing Belt II are set in described sample disc, described sample disc is provided for the sample introduction groove of sample introduction.

As preferably, described sample introduction needle holder assembly comprises sample introduction needle stand, sample introduction needle, nook closing member fixed block, piston, stepper motor III, pulley III, Timing Belt III, described sample introduction needle is arranged in the sample introduction needle stand by the nook closing member fixed block, described stepper motor III is connected by the Timing Belt III with the pulley III, and described Timing Belt III and piston fix.

As preferably, described sliding dowel block arranges groove, and described Timing Belt I is fixed in groove.

As preferably, on described piston, draw-in groove is set, described Timing Belt III is fixed in draw-in groove.

The utility model has taked above-mentioned innovative approach to carry out, and its beneficial effect is remarkable: no matter be that wash pin, sample introduction, sampling to sample introduction needle is all rotation by sample disc, and the operation up and down of sample introduction slide block coordinates and realizes.It is curved that this realization can effectively avoid sample introduction needle to be pricked.Sample disc, the sample introduction slide block, piston is by independently stepper motor and stepper motor driver control, and this can guarantee as much as possible can be by the phase mutual interference in all parts operational process.This automatic sampler can substitute hand sampling and complete a series of set sample introduction tasks, has improved widely work efficiency.And can complete this sample introduction task according to the operation that sets accurately, the maloperation that can not exist manually-operated to introduce.

Description of drawings

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

Fig. 2 is the side sectional view of the utility model embodiment 1 sample introduction tower.

In figure, 1 is piston, the 2nd, and sample introduction needle stand, the 3rd, nook closing member fixed block, the 4th, sample introduction tower, the 5th, sample disc, the 6th, base, the 7th, sample bottle, the 8th, sample introduction groove, the 9th, stepper motor I, the 10th, sliding dowel block, the 11st, installation shaft, the 12nd, pulley I, the 13rd, Timing Belt I, the 14th, sample introduction needle.

Embodiment

The below's contrast accompanying drawing is further described the utility model in conjunction with the embodiments:

With reference to Fig. 1, shown in Figure 2, a kind of full-automatic gas phase chromatogram automatic sampler in embodiment 1, comprise base 6, sample disc 5, sample introduction tower 4 are installed on base 6, sample bottle 7, washer bottle, waste liquid bottle are set on sample disc 5, interior stepper motor II, pulley II, the Timing Belt II of arranging of sample disc 5, sample disc 5 is provided for the sample introduction groove 8 of sample introduction, the power of stepper motor II sampling dish 5 rotations.Fixedly sample introduction slide block, stepper motor I9, pulley I12, Timing Belt I13, sliding dowel block 10 are installed on sample introduction tower 4, the sample introduction slide block is fixed on sample introduction tower 4 by installation shaft 11, described stepper motor I9 is connected by Timing Belt I13 with pulley I12, Timing Belt I13 is fixed in the groove of sliding dowel block 10 settings, sliding dowel block 10 is connected with the sample introduction slide block, and stepper motor I9 drives the sample introduction slide block and moves up and down.

Sample introduction needle stand assembly is installed on the sample introduction slide block, the sample introduction needle holder assembly comprises sample introduction needle stand 2, sample introduction needle 14, nook closing member fixed block 3, piston 1, stepper motor III, pulley III, Timing Belt III, be that sample introduction needle stand 2, nook closing member fixed block 3, piston 1, stepper motor III, pulley III, Timing Belt III all are fixed on the sample introduction slide block, sample introduction needle 14 is arranged in sample introduction needle stand 2 by nook closing member fixed block 3, the stepper motor III is connected by the Timing Belt III with the pulley III, on piston 1, draw-in groove is set, the Timing Belt III is fixed in draw-in groove.The motion of stepper motor III has realized the operation up and down of piston 1.

During cleaning, sample disc is transplanted on corresponding washer bottle below sample introduction needle, and then the sample introduction slide block is arriving assigned address under sample introduction needle, and piston is movable downwards, extracts one section cleaning fluid, thereby reaches the cleaning purpose.Sampling process is same cleaning process also.During sample introduction, sample disc is delivered to sample introduction needle below to the sample introduction groove, and the sample introduction slide block drops to the injection port position and carries out the sample introduction operation.

Certainly, the cooperation of the everything of this automatic sampler is all controlled realization by computing machine or control terminal.Sample disc, sample introduction slide block, piston can also be installed corresponding sensor in addition, and these allow sample disc, sample introduction slide block, piston that a fixing initial position can be arranged, and utilize initial position just can accurately locate by stepper motor.

What more than enumerate is only specific embodiment of the utility model, and obviously, the utility model is not limited to above embodiment.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should belong to protection domain of the present utility model.

Claims

1. full-automatic gas phase chromatogram automatic sampler, comprise base, on described base, sample disc is installed, the sample introduction tower, on described sample disc, sample bottle is set, washer bottle, waste liquid bottle, the sample introduction slide block is installed on described sample introduction tower, described sample introduction slide block is fixed on the sample introduction tower by installation shaft, it is characterized in that, fixing stepper motor I also on described sample introduction tower, pulley I, Timing Belt I, sliding dowel block, described stepper motor I is connected by Timing Belt I with pulley I, described Timing Belt I is fixed on sliding dowel block, described sliding dowel block is connected with the sample introduction slide block, sample introduction needle stand assembly is installed on described sample introduction slide block.

2. full-automatic gas phase chromatogram automatic sampler according to claim 1, is characterized in that, stepper motor II, pulley II, Timing Belt II are set in described sample disc, and described sample disc is provided for the sample introduction groove of sample introduction.

3. full-automatic gas phase chromatogram automatic sampler according to claim 1, it is characterized in that, described sample introduction needle holder assembly comprises sample introduction needle stand, sample introduction needle, nook closing member fixed block, piston, stepper motor III, pulley III, Timing Belt III, described sample introduction needle is arranged in the sample introduction needle stand by the nook closing member fixed block, described stepper motor III is connected by the Timing Belt III with the pulley III, and described Timing Belt III and piston fix.

4. full-automatic gas phase chromatogram automatic sampler according to claim 1, is characterized in that, described sliding dowel block arranges groove, and described Timing Belt I is fixed in groove.

5. full-automatic gas phase chromatogram automatic sampler according to claim 3, is characterized in that, on described piston, draw-in groove is set, described Timing Belt III is fixed in draw-in groove.