CN212159709U - Sample introduction device for gas chromatograph - Google Patents
Sample introduction device for gas chromatograph Download PDFInfo
- Publication number
- CN212159709U CN212159709U CN202020711247.5U CN202020711247U CN212159709U CN 212159709 U CN212159709 U CN 212159709U CN 202020711247 U CN202020711247 U CN 202020711247U CN 212159709 U CN212159709 U CN 212159709U
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- Prior art keywords
- needle
- sleeve
- gas chromatograph
- cylinder
- sample introduction
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- 238000005070 sampling Methods 0.000 claims abstract description 16
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 238000007705 chemical test Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 238000001514 detection method Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to the technical field of chemical test equipment, specifically disclose a sampling device that gas chromatograph used, including sleeve and blotter, telescopic inside is provided with the cylinder, the top of fixed lid is provided with the pivot, the blotter is located telescopic inside one side, the top of telescopic link is provided with the separation blade, telescopic one side is provided with the interface. This sampling device that gas chromatograph used, compare with current sampling device, through the sleeve, the setting of blotter and dustproof cloth, the blotter of urceolus bottom is used for reducing the damage of colliding with to the cylinder, the urceolus is equivalent to the protective sheath of cylinder part, and be convenient for grip the operation, avoid the syringe to be damaged, dustproof cloth covers the telescopic link, the motion of avoiding dust or other impurity influences the telescopic link passes through the setting of syringe needle and needle point, the syringe needle adopts the side opening to go out the liquid, the side opening design can reduce the bits that fall, avoid the bits that fall that conventional opening arouses, and solid needle point is more durable in use.
Description
Technical Field
The utility model relates to a chemical test equipment technical field specifically is a sampling device that gas chromatograph used.
Background
Gas chromatograph, which is a chromatographic analysis instrument using gas as mobile phase, the principle of the chromatographic analysis instrument is mainly to utilize the difference of boiling point, polarity and adsorption property of the material to realize the separation of mixture, the sample to be analyzed is gasified in a gasification chamber and then is carried into a chromatographic column by inert gas, the column contains liquid or solid fixed phase, each component in the sample tends to form distribution or adsorption balance between the mobile phase and the fixed phase, along with the flowing of carrier gas, the sample component is repeatedly distributed or adsorbed/desorbed during the movement, the component with high distribution concentration in the carrier gas firstly flows out of the chromatographic column, the component with high distribution concentration in the fixed phase flows out, the component flows out of the chromatographic column and enters the detector for determination, and the sample injection system of the gas chromatograph is used for introducing the sample into a gasification chamber or the chromatographic column of the gas chromatograph for analysis directly or after special treatment.
The pipe body of the injector of the existing sample injection device is made of glass, is easy to break when being stored or used, is inconvenient to operate due to thinness, is easy to damage, influences the sampling detection data of a gas chromatograph, can not well meet the use requirements of people, and carries out technical innovation on the basis of the existing sample injection device aiming at the above conditions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sampling device that gas chromatograph used to the body that proposes current sampling device syringe in solving above-mentioned background is the glass material, and easy fracture when storage or use, the inconvenient operation of thin moreover damages easily, influences gas chromatograph's sample detection data, the user demand problem of satisfying people that can not be fine.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sampling device that gas chromatograph used, includes sleeve and cushion, telescopic inside is provided with the cylinder, and telescopic one side is provided with fixed lid, the top of fixed lid is provided with the pivot, and one side of fixed lid is provided with the pushing ram, the cushion is located telescopic inside one side, and telescopic one side top is provided with the telescopic link, the top of telescopic link is provided with the separation blade, and one side of separation blade is provided with the dustproof cloth, telescopic one side is provided with the interface, and one side of interface is provided with coupling nut, one side of coupling nut is provided with the syringe needle, and the inside of syringe needle is provided with the needle tubing, one side of needle tubing is provided with the pinhole, and the inside of pinhole is provided with the needle point.
Preferably, the inner dimension structure of the sleeve is matched with the outer dimension structure of the needle cylinder, and the central axis of the needle cylinder is coincided with the central axis of the sleeve.
Preferably, the fixed cover and the sleeve form a rotating structure through a rotating shaft, and the central axis of the fixed cover and the central axis of the sleeve coincide with each other.
Preferably, the needle cylinder is in threaded connection with the needle head, and the needle cylinder is welded with the interface.
Preferably, the telescopic link is the symmetric form and distributes in the upper and lower both ends of syringe needle, and coincides mutually between the axis of telescopic link and the axis of syringe needle.
Preferably, the inner size structure of the needle hole is matched with the outer size structure of the needle tip, and the needle tip is movably connected with the needle tube.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model has the advantages that through the arrangement of the interface and the connecting nut, a detachable structure is arranged between the needle cylinder and the needle head, the needle head is better detached, maintained and repaired, before the detection and sampling work, the needle head is installed to one side of the needle cylinder, and the interface on the needle cylinder and the connecting nut on the needle head are screwed and fixed by screw threads, so that the detection and sampling work of the device can be started;
2. the utility model discloses a setting of sleeve, blotter and dustproof cloth, the blotter of urceolus bottom is used for reducing the damage to the cylinder of colliding with, and the urceolus is equivalent to the protective sheath of cylinder part, and is convenient for grip the operation moreover, avoids the syringe to be damaged, and dustproof cloth covers the telescopic link, avoids dust or other impurity to influence the motion of telescopic link;
3. the utility model discloses a syringe needle and needle point set up, the syringe needle adopts the side opening to go out the liquid, and the side opening design can reduce the bits that fall, avoids the bits that fall that conventional opening arouses, and solid needle point more resistant use moreover, becomes to dismantle between syringe needle and the needle point structure and is connected, can change the syringe needle, simple structure, and convenient operation has guaranteed gas chromatograph's detection sample quality.
Drawings
FIG. 1 is an internal structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a sleeve; 2. a needle cylinder; 3. a fixed cover; 4. a rotating shaft; 5. a push rod; 6. a cushion pad; 7. a telescopic rod; 8. a baffle plate; 9. a dust cloth; 10. an interface; 11. a connecting nut; 12. a needle head; 13. a needle tube; 14. a pinhole; 15. a needle tip.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a sample introduction device for a gas chromatograph comprises a sleeve 1 and a buffer cushion 6, wherein a needle cylinder 2 is arranged inside the sleeve 1, a fixed cover 3 is arranged on one side of the sleeve 1, the internal dimension structure of the sleeve 1 is matched with the external dimension structure of the needle cylinder 2, the central axis of the needle cylinder 2 is coincided with the central axis of the sleeve 1, a rotating shaft 4 is arranged above the fixed cover 3, a push rod 5 is arranged on one side of the fixed cover 3, the fixed cover 3 and the sleeve 1 form a rotating structure through the rotating shaft 4, the central axis of the fixed cover 3 is coincided with the central axis of the sleeve 1, the buffer cushion 6 is positioned on one side inside the sleeve 1, a telescopic rod 7 is arranged above one side of the sleeve 1, a separation blade 8 is arranged above the telescopic rod 7, a dustproof cloth 9 is arranged on one side of the separation blade 8, and the buffer cushion 6 and the dustproof cloth 9 are arranged through the sleeve 1, the buffer cushion 6 at the bottom of the, the outer cylinder is equivalent to a protective sleeve of the needle cylinder 2 part, is convenient to hold and operate, prevents the injector from being damaged, and prevents dust cloth 9 from covering the telescopic rod 7 to prevent dust or other impurities from influencing the movement of the telescopic rod 7;
the needle detection device is characterized in that a connector 10 is arranged on one side of a sleeve 1, a connecting nut 11 is arranged on one side of the connector 10, a needle cylinder 2 is in threaded connection with a needle head 12, the needle cylinder 2 is welded with the connector 10, the connector 10 and the connecting nut 11 are arranged, so that the needle cylinder 2 and the needle head 12 are in a detachable structure, the needle head 12 is better detached, maintained and maintained, the needle head 12 is installed on one side of the needle cylinder 2 before detection and sampling work, and the connector 10 on the needle cylinder 2 and the connecting nut 11 on the needle head 12 are screwed and fixed in a threaded manner, so that the detection and sampling work of the device can be started;
one side of coupling nut 11 is provided with syringe needle 12, and the inside of syringe needle 12 is provided with needle tube 13, telescopic link 7 is the upper and lower both ends of symmetric form distribution in syringe needle 12, and coincide mutually between the axis of telescopic link 7 and the axis of syringe needle 12, one side of needle tube 13 is provided with pinhole 14, and the inside of pinhole 14 is provided with needle point 15, identical between the inside dimension structure of pinhole 14 and the outside dimension structure of needle point 15, and be swing joint between needle point 15 and the needle tube 13, through the setting of syringe needle 12 and needle point 15, syringe needle 12 adopts the side opening to go out the liquid, the side opening design can reduce the bits that fall, avoid the bits that conventional opening arouses, and solid needle point 15 is more resistant to use, become to dismantle between syringe needle 12 and the needle point 15 and be connected, syringe needle 12 can be changed, moreover, the steam generator is simple in.
The working principle is as follows: when the sample introduction device for the gas chromatograph is used, firstly, before detection sampling work, a needle head 12 is arranged on one side of a needle cylinder 2, and is screwed and fixed with a connecting nut 11 on the needle head 12 through a connector 10 on the needle cylinder 2, so that the detection sampling work of the device can be started, firstly, the sample introduction device extracts enough sample to discharge air and then is placed into an outer cylinder, a fixing cover 3 is buckled, a separation blade 8 is contacted with a spacer, one hand presses the separation blade 8 and the other hand presses the outer cylinder downwards to insert the sample introduction device into a sample introduction port, then a push rod of the sample introduction device is pushed, the sample in the sample introduction device is rapidly pushed into the sample introduction port, a cushion pad 6 at the bottom of the sample introduction device is used for reducing the damage of the outer cylinder 2 due to collision, the outer cylinder is equivalent to a protective sleeve of the part of the needle cylinder 2, the holding operation is convenient, the damage of an injector is avoided, avoid dust or other impurity influences the motion of telescopic link 7, syringe needle 12 adopts the side opening to go out liquid simultaneously, and the side opening design can reduce the bits that fall, avoids the bits that fall that conventional opening arouses, and it can to extract sampling device at last.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a sampling device that gas chromatograph used, includes sleeve (1) and cushion (6), its characterized in that: a needle cylinder (2) is arranged in the sleeve (1), a fixed cover (3) is arranged on one side of the sleeve (1), a rotating shaft (4) is arranged above the fixed cover (3), and one side of the fixed cover (3) is provided with a push rod (5), the buffer pad (6) is positioned at one side of the inner part of the sleeve (1), a telescopic rod (7) is arranged above one side of the sleeve (1), a baffle plate (8) is arranged above the telescopic rod (7), and one side of the baffle sheet (8) is provided with dustproof cloth (9), one side of the sleeve (1) is provided with an interface (10), and one side of the interface (10) is provided with a connecting nut (11), one side of the connecting nut (11) is provided with a needle head (12), and a needle tube (13) is arranged in the needle head (12), a needle hole (14) is arranged on one side of the needle tube (13), and a needle point (15) is arranged in the needle hole (14).
2. The sample introduction device for a gas chromatograph according to claim 1, wherein: the inner dimension structure of the sleeve (1) is matched with the outer dimension structure of the needle cylinder (2), and the central axis of the needle cylinder (2) is coincided with the central axis of the sleeve (1).
3. The sample introduction device for a gas chromatograph according to claim 1, wherein: the fixed cover (3) and the sleeve (1) form a rotating structure through the rotating shaft (4), and the central axis of the fixed cover (3) and the central axis of the sleeve (1) coincide with each other.
4. The sample introduction device for a gas chromatograph according to claim 1, wherein: the needle cylinder (2) is in threaded connection with the needle head (12), and the needle cylinder (2) is welded with the interface (10).
5. The sample introduction device for a gas chromatograph according to claim 1, wherein: the telescopic rod (7) is symmetrically distributed at the upper end and the lower end of the needle head (12), and the central axis of the telescopic rod (7) coincides with the central axis of the needle head (12).
6. The sample introduction device for a gas chromatograph according to claim 1, wherein: the inner size structure of the needle hole (14) is matched with the outer size structure of the needle point (15), and the needle point (15) is movably connected with the needle tube (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711247.5U CN212159709U (en) | 2020-05-03 | 2020-05-03 | Sample introduction device for gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711247.5U CN212159709U (en) | 2020-05-03 | 2020-05-03 | Sample introduction device for gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212159709U true CN212159709U (en) | 2020-12-15 |
Family
ID=73722091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020711247.5U Expired - Fee Related CN212159709U (en) | 2020-05-03 | 2020-05-03 | Sample introduction device for gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212159709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705789A (en) * | 2022-06-06 | 2022-07-05 | 中科阿斯迈(江苏)检验检测有限公司 | Gas chromatography device for laboratory detection |
-
2020
- 2020-05-03 CN CN202020711247.5U patent/CN212159709U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705789A (en) * | 2022-06-06 | 2022-07-05 | 中科阿斯迈(江苏)检验检测有限公司 | Gas chromatography device for laboratory detection |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |