CN216696197U - Automatic sample headspace sample injector - Google Patents
Automatic sample headspace sample injector Download PDFInfo
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- CN216696197U CN216696197U CN202122943845.2U CN202122943845U CN216696197U CN 216696197 U CN216696197 U CN 216696197U CN 202122943845 U CN202122943845 U CN 202122943845U CN 216696197 U CN216696197 U CN 216696197U
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- headspace sampler
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Abstract
The utility model relates to the technical field of detecting instruments, in particular to an automatic sampling headspace sampler, which has the effects of saving time and labor and improving the working efficiency when sampling collection is carried out, and comprises a machine body and a sampling disc rotationally connected to the top end of the machine body, wherein a plurality of through holes are formed in the sampling disc, sampling bottles are placed in the through holes, iron sheet rings are arranged on the outer walls of the sampling bottles, and magnets are correspondingly arranged in the through holes; along advance the sample tray rotation direction on, the syringe and the collection mouth have set gradually on the organism, and be provided with two sets of promotion subassemblies that are used for promoting the relative syringe of advancing the sample bottle and slip downwards on the organism respectively, still be provided with on the organism and be used for driving the subassembly that resets that advances the sample bottle and keep away from the syringe, realize sampling when advancing the sample needle position in the syringe, advance the reseing of sample bottle, and the collection of having gathered the sample bottle after, need not artifical too much intervention, time saving and labor saving, and better work efficiency has.
Description
Technical Field
The utility model relates to the technical field of detection instruments, in particular to an automatic sampling headspace sampler.
Background
Headspace gas chromatography (HS-GC), also known as liquid-over-liquid gas chromatography, is a combined operation technique. Usually, a sample injection needle is used to perform extraction adsorption on solid, liquid, gas and the like under a certain condition and at a certain temperature, and then desorption injection is performed on a gas chromatography analyzer.
A headspace sample injector is a convenient and fast sample pretreatment method in gas chromatography, and is characterized in that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, balance is achieved in a gas-liquid (or gas-solid) phase, and top gas is directly extracted for chromatographic analysis, so that the components and the content of the volatile components in the sample are detected. The headspace sampling technology can avoid a tedious and tedious sample pretreatment process, avoid interference of an organic solvent on analysis, and reduce pollution to a chromatographic column and a sampling port. The instrument can be connected with gas chromatographs of various models at home and abroad.
When the existing headspace sample injector is operated, the sample injection bottle and the headspace sample injector need to be manually connected, the liquid in the sample injection bottle is injected one by one, and after the sample injection bottle is completed, the sample injection bottle is taken out from the headspace sample injector manually, so that the operation is repeated, time and labor are wasted, and the work efficiency is lower.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an automatic sampling headspace sampler which has the effects of saving time and labor and improving the working efficiency when sampling and collecting.
The technical purpose of the utility model is realized by the following technical scheme:
an automatic sampling headspace sampler comprises a machine body and a sampling disc rotationally connected to the top end of the machine body, wherein a plurality of through holes are formed in the sampling disc, sampling bottles are placed in the through holes, iron sheet rings are arranged on the outer walls of the sampling bottles, and magnets which are in suction fit with the iron sheet rings are correspondingly arranged in the through holes; along advance the sample tray direction of rotation, set gradually on the organism and be used for gathering the syringe of the interior appearance body of appearance bottle and be used for collecting the collection mouth of appearance bottle, and be provided with two sets of promotion subassemblies that are used for promoting the relative sample tray gliding of appearance bottle of advancing respectively on the organism, two sets of promotion subassemblies are located the top of syringe and the top of collecting the mouth respectively, still be provided with on the organism and be used for driving the reset assembly that advances the appearance bottle and keep away from the syringe.
Through the technical scheme: when placing the article correspondence of advancing in the through hole, because the actuation mating reaction of iron sheet ring and magnet on the sampling bottle outer wall, realize the sampling bottle in correspond the through hole and with advance the sample disc between fixed, and when the sample bottle that drives the correspondence at the rolling disc rotated the syringe position, promote the sampling bottle through promoting the subassembly and remove, realize sample work with the syringe cooperation, accomplish sample back through reset assembly with advance the sampling bottle playback, and when this sample bottle continues to rotate to the collection mouth top, the promotion subassembly of collection mouth top promotes this sample bottle and collects in the collection mouth, this in-process, the sampling of advance the sampling bottle is realized through mechanical structure's form with the collection, need not artifical whole participation, time saving and labor saving, improve and advance a kind collection work efficiency.
The utility model is further configured to: the pushing assembly comprises a supporting rod fixedly connected to the machine body and vertically extending upwards, an installation cross beam fixedly connected to the top of the supporting rod and extending along the horizontal direction and arranged above the sample feeding disc, and a pushing electric cylinder fixedly connected to the bottom of the installation cross beam.
Through the technical scheme: the fixing of the mounting cross beam is realized through the support frame, the fixing of the electric cylinder above the sample feeding disc is realized through the mounting cross beam, and the pushing of the sample feeding bottle on the sample feeding disc is realized through the electric cylinder.
The utility model is further configured to: reset assembly is including seting up the movable groove in the through hole inner wall, and sliding connection has a plurality of movable block in the movable groove, magnet install in the lateral wall of movable block, the movable block with fixedly connected with reset spring between the movable groove diapire.
Through the technical scheme: when the electric cylinder is pushed to push the sample injection bottle downwards, the movable block is driven to extrude the reset spring under the attraction action of the magnet and the iron sheet ring, and the reset spring resets after the sample injection bottle sampling is completed, so that the sample injection bottle is driven to return.
The utility model is further configured to: a sampling groove is formed in the machine body, and the sampling needle is installed in the sampling groove.
Through the technical scheme: the sampling needle is further protected from being damaged by external force through the sampling groove.
The utility model is further configured to: and a pushing spring is arranged in the sampling groove.
Through the technical scheme: the sample feeding bottle is reset after sampling is finished by further assisting power through the pushing spring.
The utility model is further configured to: the sample injection needle is arranged in the center of the pushing spring.
Through the technical scheme: the pushing spring is used for uniformly stressing the reset of the sampling bottle, so that the damage of the sampling bottle is reduced.
The utility model is further configured to: a collection basket is placed in the collection port.
Through the technical scheme: the collection basket is convenient for the centralized collection of the sampling bottles.
The utility model is further configured to: the bottom of the collecting basket is obliquely arranged.
Through the technical scheme: the collection basket with the inclined bottom reduces damage when the sample bottle is separated from the sample tray.
The utility model is further configured to: a cushion pad is paved in the collecting basket.
Through the technical scheme: the protection to the bottle of advancing is further realized through the blotter, reduces the damage of bottle of advancing.
In conclusion, the utility model has the following beneficial effects:
the rotation of cooperation sample introduction plate sets up respectively on sample introduction plate rotation direction and promotes subassembly and reset assembly, realizes sampling in the injection needle when advancing the injection needle position, advance the collection of sample bottle after the sample bottle that resets of appearance bottle and having gathered, need not artifical too much intervention, and labour saving and time saving has better work efficiency.
Drawings
Fig. 1 is an overall structural schematic diagram of the present embodiment of the embodiment;
FIG. 2 is a plan view of the sample tray in this embodiment;
FIG. 3 is a partial cross-sectional view of the sample tray in this embodiment;
fig. 4 is a bottom view of the sampling bottle in this embodiment.
Reference numerals: 1. a body; 2. rotating the motor; 3. a body; 4. an output shaft; 5. a sample feeding disc; 6. a through hole; 7. a bottle body; 8. a rubber cap; 9. an iron ring; 10. a sheet iron ring; 11. a magnet; 12. a sample injection needle; 13. a collection port; 14. a pushing assembly; 15. a reset assembly; 16. a support bar; 17. mounting a cross beam; 18. pushing the electric cylinder; 19. a movable groove; 20. a movable block; 21. a return spring; 22. a sampling groove; 23. a push spring; 24. a collection basket; 25. a cushion pad; 26. and (4) sampling bottles.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides an automatic sample headspace sample injector, as shown in fig. 1, includes organism 1, is provided with rotation motor 2 on the organism 1, rotates motor 2 and includes body 3 and output shaft 4, and body 3 sets up in the inside at organism 1 top, and output shaft 4 rotates to be connected in body 3, and output shaft 4 passes the top of organism 1. As shown in fig. 1 and 2, a sample injection plate 5 is fixedly connected to the top of the output shaft 4, a plurality of through holes 6 are formed in the sample injection plate 5, the plurality of through holes 6 are evenly distributed in the circumferential direction of the sample injection plate 5, and sample injection bottles 26 are placed in the through holes 6.
As shown in fig. 3 and 4, the sample injection bottle 26 includes a bottle body 7, a rubber cap 8 covering the bottle body 7, and an iron ring 9 covering the rubber cap 8.
The outer wall of the bottle body 7 is fixedly connected with an iron sheet ring 10, and a magnet 11 which is matched with the iron sheet ring 10 in an attraction way is correspondingly arranged in the through hole 6, so that the sample feeding bottle 26 and the sample feeding disc 5 are fixed.
As shown in fig. 1, along the rotation direction of the sample feeding tray 5, the machine body 1 is sequentially provided with a sample feeding needle 12 for collecting a sample body in the sample feeding bottle 26 and a collection port 13 for collecting the sample feeding bottle 26, the machine body 1 is respectively provided with two groups of pushing assemblies 14 for pushing the sample feeding bottle 26 to slide downwards relative to the sample feeding tray 5, the two groups of pushing assemblies 14 are respectively located above the sample feeding needle 12 and above the collection port 13, and the machine body 1 is further provided with a reset assembly 15 for driving the sample feeding bottle 26 to be far away from the sample feeding needle 12.
The pushing assembly 14 includes a supporting rod 16 fixedly connected to the body 1 and extending vertically upward, a mounting beam 17 fixedly connected to the top of the supporting rod 16 and extending horizontally and disposed above the sample tray 5, and a pushing electric cylinder 18 fixedly connected to the bottom of the mounting beam 17.
As shown in fig. 3, the reset assembly 15 includes a movable groove 19 opened on the inner wall of the through hole 6, and a plurality of movable blocks 20 are slidably connected in the movable groove 19, the magnet 11 is mounted on the side wall of the movable block 20, and a reset spring 21 is fixedly connected between the movable block 20 and the bottom wall of the movable groove 19.
When the electric cylinder 18 is pushed to push the sampling bottle 26 downwards, the movable block 20 is driven to extrude the return spring 21 due to the attraction effect of the magnet 11 and the iron sheet ring 10, and the return spring 21 is reset after sampling of the sampling bottle 26 is completed so as to drive the sampling bottle 26 to return.
As shown in fig. 1, a sampling slot 22 is formed at the top of the machine body 1, and the sample injection needle 12 is installed in the sampling slot 22. The sampling groove 22 is internally provided with a pushing spring 23, and the sample injection needle 12 is arranged at the center of the pushing spring 23. When the sample bottle 26 is placed in the sampling slot 22, the pushing spring 23 abuts against the iron ring 9 of the sample bottle 26. The sample injection bottle 26 is reset after sampling is finished by further assisting power through the pushing spring 23.
A collection basket 24 is disposed within the collection port 13 to facilitate the centralized collection of the vials 26 by the collection basket 24. The collection basket 24 is inclined at the bottom and is lower at the bottom at a position directly below the pushing assembly 14. A cushion pad 25 is laid at the bottom of the collecting basket 24, and the cushion pad 25 is usually made of a soft material such as a foam pad or a rubber pad. The buffer pad 25 further protects the sample bottle 26, and reduces the damage of the sample bottle 26.
The working process comprises the following steps:
when the sample is correspondingly placed in the through hole 6, the sample bottle 26 is fixed in the corresponding through hole 6 and between the sample tray 5 due to the attraction and cooperation effect of the iron sheet ring 10 and the magnet 11 on the outer wall of the sample bottle 26;
when the corresponding sampling bottle 26 is driven to rotate to the position of the sampling needle 12 along with the rotation of the rotating disc, the pushing electric cylinder 18 in the pushing assembly 14 pushes the sampling bottle 26 to move downwards, the sampling needle 12 passes through the rubber cap 8 to realize the sampling work of the sample in the bottle body 7, and at the moment, the return spring 21 and the pushing spring 23 are compressed;
after sampling is finished, the pushing electric cylinder 18 above the sampling needle 12 is retracted, the return spring 21 and the pushing spring 23 are gradually returned, and the sampling bottle 26 is driven to return;
when the sample bottle 26 continues to rotate to the position above the collection port 13, the pushing electric cylinder 18 in the pushing assembly 14 above the collection port 13 pushes the sample bottle 26 to separate the iron sheet ring 10 and the magnet 11, and the sample bottle 26 falls into the collection basket 24 in the collection port 13 for collection.
In the process, sampling and collection of the sample injection bottle 26 are realized in a mechanical structure mode, manual whole-course participation is not needed, time and labor are saved, and sample injection and collection work efficiency is improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. An automatic sample headspace sampler, its characterized in that: the sample injection device comprises a machine body (1) and a sample injection disc (5) rotationally connected to the top end of the machine body (1), wherein a plurality of through holes (6) are formed in the sample injection disc (5), sample injection bottles (26) are placed in the through holes (6), iron sheet rings (10) are arranged on the outer walls of the sample injection bottles (26), and magnets (11) which are matched with the iron sheet rings (10) in an attraction manner are correspondingly arranged in the through holes (6); along advancing appearance dish (5) rotation direction, set gradually on organism (1) and be used for gathering sample introduction needle (12) of appearance body in sample introduction bottle (26) and be used for collecting collection mouth (13) of sample introduction bottle (26), and be provided with two sets of promotion subassemblies (14) that are used for promoting sample introduction bottle (26) relative sample introduction dish (5) lapse that are arranged in on organism (1) respectively, two sets of promotion subassemblies (14) are located the top of sample introduction needle (12) and the top of collection mouth (13) respectively, still be provided with on organism (1) and be used for driving reset assembly (15) that sample introduction needle (12) were kept away from to sample introduction bottle (26).
2. The auto-sampling headspace sampler of claim 1, wherein: the pushing assembly (14) comprises a supporting rod (16) which is fixedly connected to the machine body (1) and vertically extends upwards, an installation cross beam (17) which is fixedly connected to the top of the supporting rod (16) and extends along the horizontal direction and is arranged above the sample feeding disc (5), and a pushing electric cylinder (18) which is fixedly connected to the bottom of the installation cross beam (17).
3. An auto-sampling headspace sampler according to claim 1 and further comprising: reset assembly (15) including offering in activity groove (19) of through hole (6) inner wall, and sliding connection has a plurality of movable block (20) in activity groove (19), magnet (11) install in the lateral wall of movable block (20), movable block (20) with fixedly connected with reset spring (21) between activity groove (19) diapire.
4. The auto-sampling headspace sampler of claim 3, wherein: a sampling groove (22) is formed in the machine body (1), and the sample injection needle (12) is installed in the sampling groove (22).
5. The auto-sampling headspace sampler of claim 4, wherein: and a pushing spring (23) is arranged in the sampling groove (22).
6. The auto-sampling headspace sampler of claim 5, wherein: the sample injection needle (12) is arranged in the center of the pushing spring (23).
7. The auto-sampling headspace sampler of claim 1, wherein: a collecting basket (24) is arranged in the collecting opening (13).
8. The auto-sampling headspace sampler of claim 7, wherein: the bottom of the collecting basket (24) is obliquely arranged.
9. The auto-sampling headspace sampler of claim 8, wherein: a cushion pad (25) is paved in the collecting basket (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943845.2U CN216696197U (en) | 2021-11-24 | 2021-11-24 | Automatic sample headspace sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943845.2U CN216696197U (en) | 2021-11-24 | 2021-11-24 | Automatic sample headspace sample injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216696197U true CN216696197U (en) | 2022-06-07 |
Family
ID=81837163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122943845.2U Active CN216696197U (en) | 2021-11-24 | 2021-11-24 | Automatic sample headspace sample injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216696197U (en) |
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2021
- 2021-11-24 CN CN202122943845.2U patent/CN216696197U/en active Active
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