CN201926649U - Simple propulsion device for injector in gas chromatography - Google Patents
Simple propulsion device for injector in gas chromatography Download PDFInfo
- Publication number
- CN201926649U CN201926649U CN2010206932473U CN201020693247U CN201926649U CN 201926649 U CN201926649 U CN 201926649U CN 2010206932473 U CN2010206932473 U CN 2010206932473U CN 201020693247 U CN201020693247 U CN 201020693247U CN 201926649 U CN201926649 U CN 201926649U
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- CN
- China
- Prior art keywords
- injector
- syringe
- push rod
- stepper motor
- sliding
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- Expired - Fee Related
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Abstract
The utility model discloses a simple propulsion device for an injector in a gas chromatography. The simple propulsion device comprises a frame, a cylindrical linear sliding shaft, an injecting needle positioning sheet, an injector sliding base plate, an injector fixing jacket, an injector fixing clamp, a linear sliding chute, a push rod stepping motor, an injector push rod propelling sheet, a toothed rack and a gear arranged on the push rod stepping motor, wherein the injector is arranged between the injector fixing jacket and the injector fixing clamp; a needle head of the injector is arranged on the injecting needle positioning sheet; the upper part of an injector push rod is arranged inside the linear sliding chute which is arranged on the lower side of the injector push rod propelling sheet; a sliding rack toothed rack, a round gear and a sliding base plate propelling stepping motor are arranged on the rear side of the injector sliding base plate; and the push rod stepping motor and the sliding base plate propelling stepping motor are arranged on the injector sliding base plate and the frame respectively. The simple propulsion device for the injector in the gas chromatography has the advantages of simple structure, facilitation of operation, low cost and good reproducibility, and is suitable for the gas chromatographs provided by different manufacturers.
Description
Technical field
The utility model relates to a kind of gas chromatograph sample introduction device, especially relates to a kind of simple type gas chromatography syringe propulsion plant of hand sampling auto injection.
Background technology
The gas chromatograph sample feeding method has hand sampling and auto injection.At present, the most of automatic sampler that is equipped with of the gas chromatograph of producing both at home and abroad.The automatic sampler characteristics are automatic samplings, wash pin, auto injection automatically, and favorable reproducibility, therefore can realize automatic analysis, alleviate analyst's labour intensity, increase work efficiency.But automatic sampler costs an arm and a leg, and makes complexity, and import is more than 10～20 ten thousand yuan, so medium-sized and small enterprises generally are unworthy of automatic sampler.Even automatic sampling apparatus has been arranged, often use the hand sampling method when sample size is few.But the hand sampling method exists problems such as injection speed is slow, consistance difference, thereby causes the error of quantitative test easily, and personal equation is all different according to the experimenter, and the beginner is all the more so.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy to operate, cost is low, favorable reproducibility, be applicable on the gas chromatograph of any producer, but auto injection after the hand sampling, and the sample introduction effect simple type gas chromatography syringe propulsion plant identical with automatic sampler.
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy to operate, cost is low, favorable reproducibility, be applicable on the gas chromatograph of any producer, but auto injection after the hand sampling, and the sample introduction effect simple type gas chromatography syringe propulsion plant identical with automatic sampler.
The purpose of this utility model is achieved in that it comprises frame, frame is provided with cylindrical linear sliding axle and entry needle spacer, the cylindrical linear sliding axle is provided with the syringe sliding floor, the syringe sliding floor is provided with fixedly chuck of syringe, the syringe geometrical clamp, linear ramp and push rod stepper motor, syringe fixedly is provided with the injector push-rod mobile slideway between chuck and the linear ramp, the injector push-rod impelling sheet that is provided with in the linear ramp is provided with tooth bar, be provided with the gear of gear shaft between tooth bar and the push rod stepper motor, described syringe fixedly is provided with syringe between chuck and the syringe geometrical clamp, the syringe needle of syringe is located on the entry needle spacer, the top of the injector push-rod of syringe is located in the linear ramp of injector push-rod impelling sheet downside, described syringe sliding floor back is provided with the travelling carriage tooth bar, the travelling carriage tooth bar is provided with Knucle-gear, the knuckle-tooth wheel shaft that Knucle-gear is provided with is provided with sliding floor and advances stepper motor, and described push rod stepper motor and sliding floor advance stepper motor to be located at respectively on syringe sliding floor and the frame.
Because adopt technique scheme, the simple type gas chromatography syringe propulsion plant that the utility model provides has following advantage: this device is applicable to the gas chromatograph of different manufacturers different model, can replace artificial sample introduction.Simple in structure, easy to operate, characteristics such as cost is low, favorable reproducibility that this device has.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the backsight structural representation of Fig. 1.
In Fig. 1 to Fig. 2,1, frame, 2, the cylindrical linear sliding axle, 3, entry needle spacer, 4, syringe sliding floor, 5, the fixing chuck of syringe, 6, the syringe geometrical clamp, 7, linear ramp, 8, push rod stepper motor, 9, the injector push-rod mobile slideway, 10, the injector push-rod impelling sheet, 11, tooth bar, 12, gear shaft, 13, gear, 14, syringe, 15, syringe needle, 16, injector push-rod, 17, the travelling carriage tooth bar, 18, Knucle-gear, 19, knuckle-tooth wheel shaft, 20, sliding floor advances stepper motor.
Embodiment
Extremely shown in Figure 2 as Fig. 1, syringe sliding floor 4 in the simple type gas chromatography syringe propulsion plant that the utility model provides is made for the ABS material, and push rod stepper motor 8, linear ramp 7, syringe fixedly chuck 5, syringe geometrical clamp 6, travelling carriage tooth bar 17 are installed in syringe sliding floor 4 tops.The tooth bar 11 that is provided with in the linear ramp 7 links to each other with injector push-rod impelling sheet 10.Cylindrical linear sliding axle 2, sliding floor propelling stepper motor 20, entry needle spacer 3 are installed on the device frame 1.Syringe sliding floor 4 is enclosed within on the cylindrical linear sliding axle 2.
During concrete the use, at first, the utility model is installed in the gas chromatograph top, syringe needle 15 is aimed at the gas chromatograph injection port during installation, and entry needle spacer 3 is adjusted into 2 millimeter with the injection port gap, and syringe sliding floor 4 highly afterwards wash for syringe 14 is laid by needle point and entry needle spacer 3 bottoms.Bending and off-center when the acting as of entry needle spacer 3 prevents that needle point from inserting dottle pin.
Then, syringe 14 is contained on the simple type gas chromatography syringe propulsion plant after utilizing 10 μ L syringes, 14 hand samplings, 1～2 μ L sample, adjust injector push-rod impelling sheet 10 height, make injector push-rod impelling sheet 10 and injector push-rod 16 gaps keep 0.5 millimeter.If gap too conference causes the hyperbar of vaporizer with the nook closing member blowback.
When sample introduction, open simple type gas chromatography syringe propulsion plant power switch, by a START button, the controllor for step-by-step motor injector-actuated advances stepper motor 20, syringe sliding floor 4 is moved down rapidly, and entry needle passes the sample introduction pad and all is inserted in the bushing pipe, drives push rod stepper motor 8 simultaneously and advances injector push-rods 16, and sample is injected into vaporizer.Reverse drive advances stepper motor 8 to extract entry needle rapidly then, makes push rod stepper motor 8 get back to original position simultaneously.The syringe sliding floor advances the bar tooth of the gear drive syringe sliding floor 4 on the stepper motor 20 that sliding floor 4 is moved up and down.The gear of same push rod stepper motor 8 promotes downwards by tooth bar transmission injector push-rod 16.Controllor for step-by-step motor is made up of AT89C51 single-chip microcomputer, TA8435H step motor drive chip, Switching Power Supply, keyboard etc.Single-chip microcomputer produces stepper motor rotating signal and step-by-step impulse, and by chip for driving control step motor rotation, stepper motor adopts the two phase mixing stepper motor.Single injected sampling finishes back taking-up syringe 14 and washes pin, for next sample introduction is prepared.
Claims (1)
1. simple type gas chromatography syringe propulsion plant, it is characterized in that, it comprises frame (1), frame (1) is provided with cylindrical linear sliding axle (2) and entry needle spacer (3), cylindrical linear sliding axle (2) is provided with syringe sliding floor (4), syringe sliding floor (4) is provided with fixedly chuck (5) of syringe, syringe geometrical clamp (6), linear ramp (7) and push rod stepper motor (8), syringe fixedly is provided with injector push-rod mobile slideway (9) between chuck (5) and the linear ramp (7), the injector push-rod impelling sheet (10) that is provided with in the linear ramp (7) is provided with tooth bar (11), be provided with the gear (13) of gear shaft (12) between tooth bar (11) and the push rod stepper motor (8), described syringe fixedly is provided with syringe (14) between chuck (5) and the syringe geometrical clamp (6), the syringe needle (15) of syringe (14) is located on the entry needle spacer (3), the top of the injector push-rod (16) of syringe (14) is located in the linear ramp (7) of injector push-rod impelling sheet (10) downside, described syringe sliding floor (4) back is provided with travelling carriage tooth bar (17), travelling carriage tooth bar (17) is provided with Knucle-gear (18), the knuckle-tooth wheel shaft (19) that Knucle-gear (18) is provided with is provided with sliding floor and advances stepper motor (20), and described push rod stepper motor (8) and sliding floor advance stepper motor (20) to be located at respectively on syringe sliding floor (4) and the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206932473U CN201926649U (en) | 2010-12-31 | 2010-12-31 | Simple propulsion device for injector in gas chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206932473U CN201926649U (en) | 2010-12-31 | 2010-12-31 | Simple propulsion device for injector in gas chromatography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926649U true CN201926649U (en) | 2011-08-10 |
Family
ID=44430494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206932473U Expired - Fee Related CN201926649U (en) | 2010-12-31 | 2010-12-31 | Simple propulsion device for injector in gas chromatography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926649U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950058A (en) * | 2015-07-03 | 2015-09-30 | 无锡市稼宝药业有限公司 | Gas chromatograph sample injector |
| CN106770846A (en) * | 2015-11-20 | 2017-05-31 | 株式会社岛津制作所 | For the hand sampling servicing unit of gas chromatograph sampling syringe |
| CN106885863A (en) * | 2017-02-06 | 2017-06-23 | 国网山东省电力公司招远市供电公司 | A kind of oil sample chromatography quantitative sampling device and application method |
-
2010
- 2010-12-31 CN CN2010206932473U patent/CN201926649U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950058A (en) * | 2015-07-03 | 2015-09-30 | 无锡市稼宝药业有限公司 | Gas chromatograph sample injector |
| CN106770846A (en) * | 2015-11-20 | 2017-05-31 | 株式会社岛津制作所 | For the hand sampling servicing unit of gas chromatograph sampling syringe |
| CN106885863A (en) * | 2017-02-06 | 2017-06-23 | 国网山东省电力公司招远市供电公司 | A kind of oil sample chromatography quantitative sampling device and application method |
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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: 20110810 Termination date: 20111231 |