CN209841803U - Automatic sample injector of gas chromatograph - Google Patents
Automatic sample injector of gas chromatograph Download PDFInfo
- Publication number
- CN209841803U CN209841803U CN201920212858.2U CN201920212858U CN209841803U CN 209841803 U CN209841803 U CN 209841803U CN 201920212858 U CN201920212858 U CN 201920212858U CN 209841803 U CN209841803 U CN 209841803U
- Authority
- CN
- China
- Prior art keywords
- gas chromatograph
- servo motor
- lead screw
- autosampler
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 21
- 230000005526 G1 to G0 transition Effects 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229940090047 auto-injector Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas chromatograph autosampler, including the gas chromatograph body, the supporting legs is all installed at four end angles of gas chromatograph body bottom surface, the supporting legs has four, the up end of gas chromatograph body is provided with the introduction port, the lift cylinder is installed to one side of introduction port, first servo motor protecting sheathing is installed to the top of lift cylinder, first servo motor protecting sheathing's internally mounted has a servo motor, the connecting plate is installed to first servo motor protecting sheathing's top, little cylinder is installed to the top of connecting plate, the clamp finger is installed to one side of little cylinder, the clamp finger has two, the inboard of pressing from both sides the finger is installed and is embraced the ring, the slipmat is installed to the inboard of embracing the ring. The utility model discloses simple structure improves and advances kind efficiency, has avoided the injection discrimination phenomenon.
Description
Technical Field
The utility model relates to a chromatograph technical field specifically is a gas chromatograph autosampler.
Background
With the rapid development of socio-economic, the gas chromatograph refers to a chromatographic analysis instrument using gas as a mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances. After being gasified in the gasification chamber, the sample to be analyzed is carried into the chromatographic column by inert gas (i.e. carrier gas, also called mobile phase), the column contains liquid or solid stationary phase, and each component in the sample tends to form distribution or adsorption equilibrium between the mobile phase and the stationary phase. With the flowing of the carrier gas, the sample components are repeatedly distributed or adsorbed/desorbed in motion for many times, and the components with high distribution concentration in the carrier gas flow out of the chromatographic column firstly, and the components with high distribution concentration in the stationary phase flow out after being distributed. The components exit the column and enter a detector for determination.
However, the existing gas chromatograph performs injection manually, so that the injection speed is not easy to control, and the injection discrimination phenomenon is easy to occur, so that the sample measurement is not accurate; thus, the existing requirements are not met, and a gas chromatograph autosampler is proposed for the requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas chromatograph autoinjector to current gas chromatograph who proposes injects with manual in solving above-mentioned background art, the speed of the difficult control appearance is advanced, appears injecting discrimination phenomenon easily, leads to the inaccurate scheduling problem of sample determination.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic sample injector of a gas chromatograph comprises a gas chromatograph body, wherein four supporting legs are arranged at four end corners of the bottom surface of the gas chromatograph body, the number of the supporting legs is four, a sample inlet is formed in the upper end surface of the gas chromatograph body, a lifting cylinder is arranged at one side of the sample inlet, a first servo motor protective shell is arranged above the lifting cylinder, a first servo motor is arranged inside the first servo motor protective shell, a connecting plate is arranged above the first servo motor protective shell, a small cylinder is arranged above the connecting plate, clamping fingers are arranged at one side of the small cylinder, the number of the clamping fingers is two, a holding ring is arranged at the inner side of each clamping finger, an anti-skid pad is arranged at the inner side of the holding ring, a second servo motor protective shell is arranged at the other side of the sample inlet, and a second servo motor is arranged inside the second servo motor protective shell, the middle of second servo motor protective housing up end is installed the lead screw, spacing post is all installed to the both sides of lead screw, spacing post has two, the lead screw backplate is installed to the rear side of lead screw, the surface mounting of lead screw and spacing post has to support the piece.
Preferably, one end of the screw rod extends to the inside of the second servo motor, the second servo motor is connected with the screw rod through a coupler, and the other end of the screw rod is connected with the screw rod protection plate through a clamping groove.
Preferably, the bottom surface of the lifting cylinder is completely attached to the upper end surface of the gas chromatograph body, and the gas chromatograph body is connected with the lifting cylinder through bolts.
Preferably, the lead screw is connected with the abutting block through threads.
Preferably, the inner side of the embracing ring is provided with a clamping groove, and the non-slip mat is connected with the embracing ring through the clamping groove.
Preferably, the limiting column and the lead screw guard plate are fixed through welding.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model is beneficial to clamping the injectors with different sizes by installing the clamping fingers on one side of the small cylinder and installing the embracing ring on the inner side of the clamping fingers, and the antiskid pad is installed on the inner side of the embracing ring, thus improving the clamping stability;
2. the utility model discloses an install first servo motor protecting sheathing, the internally mounted of first servo motor protecting sheathing has first servo motor, the direction of the little cylinder of convenient rotation, through installing the lift cylinder, is favorable to adjusting the height of little cylinder, is favorable to being fixed a position injection by syringe and introduction port that are held;
3. the utility model discloses an install second servo motor protecting sheathing, the internally mounted of second servo motor protecting sheathing has second servo motor, and the rotation of work drive lead screw through second servo motor supports a vertical migration through the rotatory drive of lead screw, laminates completely through the one end of supporting a piece and the one end of syringe, can pour into the sample introduction port into with the sample in the syringe rapidly, avoids appearing the injection discrimination.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a schematic view of a partial structure of the hoop of the present invention;
fig. 3 is a schematic view of a local structure of a second servo motor according to the present invention.
In the figure: 1. a gas chromatograph body; 2. supporting legs; 3. a lifting cylinder; 4. a first servo motor protective housing; 5. a small cylinder; 6. clamping fingers; 7. a second servo motor protective housing; 8. a lead screw; 9. a resisting block; 10. a limiting column; 11. a screw guard plate; 12. a sample inlet; 13. a connecting plate; 14. encircling; 15. a non-slip mat; 16. a second servo motor; 17. a first servo motor.
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.
Referring to fig. 1-3, the present invention provides an embodiment: an automatic sample injector of a gas chromatograph comprises a gas chromatograph body 1, wherein four supporting legs 2 are respectively arranged at four end corners of the bottom surface of the gas chromatograph body 1, four supporting legs 2 are arranged, a sample inlet 12 is arranged on the upper end surface of the gas chromatograph body 1, a lifting cylinder 3 is arranged at one side of the sample inlet 12, a first servo motor protective shell 4 is arranged above the lifting cylinder 3, a first servo motor 17 is arranged inside the first servo motor protective shell 4, a connecting plate 13 is arranged above the first servo motor protective shell 4, a small cylinder 5 is arranged above the connecting plate 13, clamping fingers 6 are arranged at one side of the small cylinder 5, two clamping fingers 6 are arranged, a holding ring 14 is arranged at the inner side of each clamping finger 6, an anti-skid pad 15 is arranged at the inner side of the holding ring 14, a second servo motor protective shell 7 is arranged at the other side of the sample inlet 12, and a second servo motor 16 is arranged inside the second servo motor protective shell, lead screw 8 is installed to the centre of second servo motor protecting sheathing 7 up end, and spacing post 10 is all installed to the both sides of lead screw 8, and spacing post 10 has two, and lead screw backplate 11 is installed to the rear side of lead screw 8, and the surface mounting of lead screw 8 and spacing post 10 supports piece 9, and is spacing to the activity of supporting piece 9 through installing spacing post 10, and the work through second servo motor 16 drives lead screw 8 rotatory and then drives and support piece 9 and reciprocate.
Further, the one end of lead screw 8 extends to the inside of second servo motor 16, and second servo motor 16 passes through the coupling joint with lead screw 8, and lead screw 8's the other end passes through the draw-in groove with lead screw backplate 11 to be connected, improves the stability of connecting.
Further, the bottom surface of lift cylinder 3 and the up end of gas chromatograph body 1 laminate completely, and gas chromatograph body 1 passes through bolted connection with lift cylinder 3, improves the stability of connecting.
Further, the lead screw 8 is connected with the abutting block 9 through threads, and the connection stability is improved.
Furthermore, the inner side of the embracing ring 14 is provided with a clamping groove, and the non-slip mat 15 is connected with the embracing ring 14 through the clamping groove, so that the connection stability is improved.
Further, the limiting column 10 and the lead screw protection plate 11 are fixed through welding, and fixing firmness is improved.
The working principle is as follows: when the device is used, a power supply is switched on, all cylinders are switched on an air pump, a switch button of a second servo motor 16 is turned on, a limiting column 10 limits the movement of a supporting block 9, a lead screw 8 is driven to rotate clockwise by the work of the second servo motor 16 so as to drive the supporting block 9 to move upwards until the supporting block 9 moves to the top end of the lead screw 8, the second servo motor 16 is suspended, a switch button of a small cylinder 5 is turned on, an injector filled with a sample is placed on the inner side of a holding ring 14 until the holding ring 14 is tightly attached to the injector, the small cylinder 5 is turned off, the clamping stability is improved by installing an anti-skid pad 15 on the inner side of the holding ring 14, the switch button of a lifting cylinder 3 is turned on until the upper end face of the injector is lower than the bottom face of the supporting block 9, the lifting cylinder 3 is turned off, the switch button of a first servo motor 17 is turned on, until the bottom of the injector and the injection port 12 are located on the same axis, the first servo motor 17 is suspended, the lifting cylinder 3 is opened, until the needle of the injector enters the inside of the injection port 12, the lifting cylinder 3 is suspended, the second servo motor 16 is opened, the lead screw 8 is driven to rotate anticlockwise through the work of the second servo motor 16 so as to drive the abutting block 9 to move downwards, along with the close contact between the abutting block 9 and the upper end face of the injector, a sample in the injector is rapidly injected into the inside of the injection port 12, after the injection is finished, the lead screw 8 is driven to rotate clockwise through the work of the second servo motor 16 so as to drive the abutting block 9 to move upwards, all mechanisms reset, the small cylinder 5 is opened, and the injector is taken down.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a gas chromatograph autosampler, includes gas chromatograph body (1), its characterized in that: the gas chromatograph comprises a gas chromatograph body (1), wherein supporting legs (2) are installed at four end angles of the bottom surface of the gas chromatograph body (1), the number of the supporting legs (2) is four, a sample inlet (12) is arranged on the upper end surface of the gas chromatograph body (1), a lifting cylinder (3) is installed on one side of the sample inlet (12), a first servo motor protective shell (4) is installed above the lifting cylinder (3), a first servo motor (17) is installed inside the first servo motor protective shell (4), a connecting plate (13) is installed above the first servo motor protective shell (4), a small cylinder (5) is installed above the connecting plate (13), a clamp finger (6) is installed on one side of the small cylinder (5), the clamp finger (6) has two, a clamping ring (14) is installed on the inner side of the clamp finger (6), and an anti-slip mat (15) is installed on the inner side of the clamping ring (14), second servo motor protecting sheathing (7) are installed to the opposite side of inlet (12), the internally mounted of second servo motor protecting sheathing (7) has second servo motor (16), lead screw (8) are installed to the centre of second servo motor protecting sheathing (7) up end, spacing post (10) are all installed to the both sides of lead screw (8), spacing post (10) have two, lead screw backplate (11) are installed to the rear side of lead screw (8), the surface mounting of lead screw (8) and spacing post (10) has to support piece (9).
2. The gas chromatograph autosampler of claim 1, wherein: one end of the lead screw (8) extends to the inside of the second servo motor (16), the second servo motor (16) is connected with the lead screw (8) through a coupler, and the other end of the lead screw (8) is connected with the lead screw protection plate (11) through a clamping groove.
3. The gas chromatograph autosampler of claim 1, wherein: the bottom surface of lift cylinder (3) laminates with the up end of gas chromatograph body (1) completely, gas chromatograph body (1) passes through bolted connection with lift cylinder (3).
4. The gas chromatograph autosampler of claim 1, wherein: the screw rod (8) is connected with the abutting block (9) through threads.
5. The gas chromatograph autosampler of claim 1, wherein: the inner side of the embracing ring (14) is provided with a clamping groove, and the non-slip mat (15) is connected with the embracing ring (14) through the clamping groove.
6. The gas chromatograph autosampler of claim 1, wherein: the limiting column (10) and the lead screw protection plate (11) are fixed through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212858.2U CN209841803U (en) | 2019-02-19 | 2019-02-19 | Automatic sample injector of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212858.2U CN209841803U (en) | 2019-02-19 | 2019-02-19 | Automatic sample injector of gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209841803U true CN209841803U (en) | 2019-12-24 |
Family
ID=68903871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920212858.2U Expired - Fee Related CN209841803U (en) | 2019-02-19 | 2019-02-19 | Automatic sample injector of gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209841803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113419012A (en) * | 2021-08-02 | 2021-09-21 | 崔然 | Gas chromatograph for detecting organic pollutants |
-
2019
- 2019-02-19 CN CN201920212858.2U patent/CN209841803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113419012A (en) * | 2021-08-02 | 2021-09-21 | 崔然 | Gas chromatograph for detecting organic pollutants |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208568697U (en) | A kind of automatic sampling apparatus for high performance liquid chromatograph | |
| CN202974959U (en) | Full-automatic gas chromatography sample injector | |
| CN209841803U (en) | Automatic sample injector of gas chromatograph | |
| CN209069876U (en) | A kind of automatic sampling mechanism of gas chromatograph | |
| CN209992449U (en) | Automatic sample introduction device for gas chromatograph needle cylinder | |
| CN215726480U (en) | Torque testing system | |
| CN208206895U (en) | A kind of sample bottle fetching device on automatic headspace sample injector | |
| CN213632815U (en) | Water quality monitoring collector with adjustable space | |
| CN208255210U (en) | It is a kind of with the BOD detection device for covering and taking lid automatically | |
| CN216525619U (en) | Qualitative and quantitative gas chromatography rapid determination device for deltamethrin in serum | |
| CN219496412U (en) | High performance liquid chromatograph inspection instrument | |
| CN209841804U (en) | Trace advances a kind syringe pump | |
| CN201926649U (en) | Simple propulsion device for injector in gas chromatography | |
| CN214953272U (en) | Automatic sample injector of gas chromatograph | |
| CN217543004U (en) | Sample introduction assembly of high performance liquid chromatograph | |
| CN113419012A (en) | Gas chromatograph for detecting organic pollutants | |
| CN211785362U (en) | Special full-automatic sample introduction device for liquid chromatograph detection | |
| CN108940400B (en) | A mount for filtering sampling liquid in batches | |
| CN213779990U (en) | HPLC sampling device | |
| CN209979568U (en) | Sample introduction device for gas chromatography | |
| CN210465362U (en) | Sample introduction device for oil chromatographic analysis | |
| CN210954054U (en) | Washing system of strong-suction type chemiluminescence immunoassay analyzer | |
| CN103697842B (en) | A kind of running gear measured for fuel assembly | |
| CN209878296U (en) | Novel fuel sprayer test bench | |
| CN209935385U (en) | Magnetic bead cleaning and recycling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |