CN212808173U - A sampling device for gas chromatograph that aromatic substance detected - Google Patents
A sampling device for gas chromatograph that aromatic substance detected Download PDFInfo
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- CN212808173U CN212808173U CN202022138433.7U CN202022138433U CN212808173U CN 212808173 U CN212808173 U CN 212808173U CN 202022138433 U CN202022138433 U CN 202022138433U CN 212808173 U CN212808173 U CN 212808173U
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Abstract
The utility model provides a gas chromatograph's sampling device for aromatic substance detects, support frame one side is equipped with the sliding plate, sliding plate and support frame sliding connection, be equipped with autoinjection device on the sliding plate, autoinjection device includes the fixed plate, is equipped with a plurality of draw-in grooves on the fixed plate, and the draw-in groove top is equipped with movable chuck, movable chuck and fixed plate sliding connection, be equipped with the second motor on the fixed plate, second motor output is equipped with the second screw rod, second screw rod and movable chuck threaded connection, and movable chuck is used for blocking the press head of injector, and the draw-in groove is used for the barrel of chucking injector. The sample inside the sample injector is accurately added into the gas chromatograph, the sample injection process is automatically controlled, errors caused by manual operation are avoided, the measurement precision is high, the popularization value is good, the structure is compact and practical, and convenience is brought to the life of people.
Description
Technical Field
The utility model belongs to the technical field of gas chromatograph's appearance of advancing and specifically relates to a gas chromatograph's sampling device for aromatic substance detects is related to.
Background
The gas chromatograph has wide application in the fields of petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection and the like. Besides being used for quantitative and qualitative analysis, the method can also be used for measuring the physical and chemical constants such as the distribution coefficient, activity coefficient, molecular weight, specific surface area and the like of a sample on a stationary phase. At present, a microinjector is generally adopted for sampling a liquid sample, and manual injection is needed; the length of the syringe needle inserted into the sample inlet of the gas chromatograph is not easy to master in the manual injection process, errors are difficult to avoid, measured data are deviated and inaccurate, and the prior art obviously has inconvenience and defects in actual use, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a sampling device for gas chromatograph that aromatic substance detected, the length that solves the artifical injection process syringe needle of appearance of liquid sample and insert in the gas chromatograph introduction is difficult to master, the inevitable problem that can have the error.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a sample introduction device of a gas chromatograph for detecting aromatic substances is characterized in that a sliding plate is arranged on one side of a support frame and is in sliding connection with the support frame, an automatic sample introduction device is arranged on the sliding plate and comprises a fixed plate, a plurality of clamping grooves are formed in the fixed plate, a movable chuck is arranged above the clamping grooves and is in sliding connection with the fixed plate, a second motor is arranged on the fixed plate, a second screw rod is arranged at the output end of the second motor and is in threaded connection with the movable chuck;
the movable chuck is used for clamping the pressing head of the sample injector, and the clamping groove is used for clamping the barrel of the sample injector.
In the preferred scheme, the pressing head card of injector is equipped with a plurality of second slide rails at the activity chuck middle part on the fixed plate, activity chuck and second slide rail sliding connection.
In the preferred scheme, a clamping plate is arranged above the clamping groove, and the hanging part at the end part of the sample injector cylinder is clamped between the clamping plate and the clamping groove.
In the preferred scheme, be equipped with the recess on the chucking board, the push rod of injector is arranged in the recess of chucking board.
In the preferred scheme, the movable chuck comprises a pressing plate and a groove plate, the pressing head of the sample injector is arranged between the pressing plate and the groove plate, and the push rod of the sample injector is arranged on the groove plate.
In a preferable scheme, a plurality of first sliding rails are arranged on the supporting frame, and the sliding plate is connected with the first sliding rails in a sliding manner.
In the preferred scheme, the support frame is further provided with a first motor, the output end of the first motor is provided with a first screw rod, and the first screw rod is in threaded connection with the sliding plate.
The utility model provides a sampling device for gas chromatograph that aromatic substance detected, place the injector on autoinjection device, drive movable chuck through the second motor and push down, with the accurate gas chromatograph that adds of the inside sample of injector, advance kind process automatic control, the error of having avoided the manual operation to cause, measurement accuracy is high, has better spreading value, compact structure is practical, the life of giving people has brought the facility, be worth extensively promoting, the user demand of this electric pile main part has been satisfied.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a view showing the overall appearance of the present invention;
FIG. 2 is a left side view of the structure of the present invention;
FIG. 3 is a view showing the installation structure of the automatic sample feeder and the sample injector of the present invention;
FIG. 4 is a structural diagram of the automatic sample feeding device of the present invention;
fig. 5 is the structure diagram of the movable chuck of the utility model:
in the figure: a support frame 1; a first electric machine 2; a mounting plate 3; a first slide rail 4; a first screw 5; a slide plate 6; an automatic sample introduction device 7; a fixing plate 701; a movable clamp 702; a hold-down plate 7021; a slot plate 7022; a second screw 703; a chucking plate 704; a card slot 705; a second motor 706; a second sliding track 707; a sample injector 8; a hanging part 801; the head 802 is pressed.
Detailed Description
As shown in fig. 1 to 5, a sample injection device of a gas chromatograph for detecting aromatic substances, wherein a sliding plate 6 is disposed on one side of a support frame 1, the sliding plate 6 is slidably connected to the support frame 1, an automatic sample injection device 7 is disposed on the sliding plate 6, the automatic sample injection device 7 includes a fixed plate 701, a plurality of slots 705 are disposed on the fixed plate 701, a movable chuck 702 is disposed above the slots 705, the movable chuck 702 is slidably connected to the fixed plate 701, a second motor 706 is disposed on the fixed plate 701, a second screw 703 is disposed at an output end of the second motor 706, the second screw 703 is in threaded connection with the movable chuck 702, the movable chuck 702 is used for clamping a pressing head 802 of a sample injector 8, and the slots 705 are used for clamping a cylinder. Place injector 8 on autoinjection device 7, drive movable chuck 702 through second motor 706 and push down, with the accurate gas chromatograph that adds of the inside sample of injector 8, advance kind process automatic control, avoided the error that manual operation caused, measurement accuracy is high.
The cylinder of the sample injector 8 is clamped on the clamping groove 705, the pressing head 802 of the sample injector 8 is clamped on the movable clamping head 702, and the sample injection is pressed down by the second motor 706.
In a preferred embodiment, the pressing head 802 of the sample injector 8 is clamped in the middle of the movable chuck 702, the fixed plate 701 is provided with a plurality of second sliding rails 707, and the movable chuck 702 is slidably connected with the second sliding rails 707. With the structure shown in fig. 3-4, the present embodiment preferably has two second sliding rails 707 to make the sliding of the movable clamp 702 more uniform.
In a preferred scheme, a clamping plate 704 is arranged above the clamping groove 705, and a hanging part 801 at the end part of the cylinder body of the sample injector 8 is clamped between the clamping plate 704 and the clamping groove 705. As shown in fig. 3, the engaging portion 801 is engaged between the clamping plate 704 and the engaging groove 705, and stabilizes the engaging portion 801 of the injector 8.
In a preferred embodiment, the clamping plate 704 is provided with a groove, and the push rod of the sample injector 8 is placed in the groove of the clamping plate 704. As shown in FIG. 3, the recess in the clamping plate 704 is used to avoid the push rod of the sample injector 8.
In a preferred scheme, the movable chuck 702 comprises a pressing plate 7021 and a groove plate 7022, the pressing head 802 of the sample injector 8 is arranged between the pressing plate 7021 and the groove plate 7022, and the push rod of the sample injector 8 is arranged on the groove plate 7022. In the structure shown in fig. 5, the pressing head 802 is clamped and fixed between the pressing plate 7021 and the groove plate 7022.
In a preferred scheme, a plurality of first sliding rails 4 are arranged on the support frame 1, and the sliding plate 6 is slidably connected with the first sliding rails 4. The support frame 1 is further provided with a first motor 2, the output end of the first motor 2 is provided with a first screw rod 5, and the first screw rod 5 is in threaded connection with the sliding plate 6. The first motor 2 drives the sliding plate 6 to slide up and down, so that the end part of the sample injector 8 is close to the sample injection position. The position of the entire injector 8 is controlled.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. A kind of sample introduction device of gas chromatograph used for aromatic substance detection, its characteristic is: one side of the support frame (1) is provided with a sliding plate (6), the sliding plate (6) is in sliding connection with the support frame (1), an automatic sampling device (7) is arranged on the sliding plate (6), the automatic sampling device (7) comprises a fixed plate (701), a plurality of clamping grooves (705) are arranged on the fixed plate (701), a movable chuck (702) is arranged above the clamping grooves (705), the movable chuck (702) is in sliding connection with the fixed plate (701), a second motor (706) is arranged on the fixed plate (701), the output end of the second motor (706) is provided with a second screw rod (703), and the second screw rod (703) is in threaded connection with the movable chuck (702);
the movable clamping head (702) is used for clamping the pressing head (802) of the sample injector (8), and the clamping groove (705) is used for clamping the barrel of the sample injector (8).
2. The sample injection device of a gas chromatograph for detecting aromatic substances, according to claim 1, wherein: the pressing head (802) of the sample injector (8) is clamped in the middle of the movable chuck (702), the fixed plate (701) is provided with a plurality of second sliding rails (707), and the movable chuck (702) is in sliding connection with the second sliding rails (707).
3. The sample injection device of a gas chromatograph for detecting aromatic substances, according to claim 1, wherein: a clamping plate (704) is arranged above the clamping groove (705), and a hanging part (801) at the end part of the cylinder body of the sample injector (8) is clamped between the clamping plate (704) and the clamping groove (705).
4. The sample injection device of the gas chromatograph for detecting the aromatic substances, according to claim 3, wherein: the clamping plate (704) is provided with a groove, and the push rod of the sample injector (8) is arranged in the groove of the clamping plate (704).
5. The sample injection device of a gas chromatograph for detecting aromatic substances, according to claim 1, wherein: the movable chuck (702) comprises a pressing plate (7021) and a slot plate (7022), the pressing head (802) of the sample injector (8) is arranged between the pressing plate (7021) and the slot plate (7022), and the push rod of the sample injector (8) is arranged on the slot plate (7022).
6. The sample injection device of a gas chromatograph for detecting aromatic substances, according to claim 1, wherein: a plurality of first sliding rails (4) are arranged on the supporting frame (1), and the sliding plate (6) is connected with the first sliding rails (4) in a sliding mode.
7. The sample injection device of the gas chromatograph for detecting the aromatic substances, according to claim 6, wherein: still be equipped with first motor (2) on support frame (1), first motor (2) output is equipped with first screw rod (5), first screw rod (5) and sliding plate (6) threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022138433.7U CN212808173U (en) | 2020-09-25 | 2020-09-25 | A sampling device for gas chromatograph that aromatic substance detected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022138433.7U CN212808173U (en) | 2020-09-25 | 2020-09-25 | A sampling device for gas chromatograph that aromatic substance detected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212808173U true CN212808173U (en) | 2021-03-26 |
Family
ID=75090385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022138433.7U Active CN212808173U (en) | 2020-09-25 | 2020-09-25 | A sampling device for gas chromatograph that aromatic substance detected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212808173U (en) |
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2020
- 2020-09-25 CN CN202022138433.7U patent/CN212808173U/en active Active
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