CN211043265U - Semi-automatic headspace sample injector - Google Patents
Semi-automatic headspace sample injector Download PDFInfo
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- CN211043265U CN211043265U CN201922088136.3U CN201922088136U CN211043265U CN 211043265 U CN211043265 U CN 211043265U CN 201922088136 U CN201922088136 U CN 201922088136U CN 211043265 U CN211043265 U CN 211043265U
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Abstract
The utility model provides a semi-automatic headspace sample injector. The utility model provides a semi-automatic headspace sample injector, includes headspace sample injector body, sample bin and feeding carousel, the feeding carousel with headspace sample injector body rotates to be connected, the sample bin is fixed in through the support feeding carousel top, sample bin bottom is equipped with the discharge gate, install the solenoid valve on the discharge gate, the feeding carousel is discoid structure and follows a plurality of centre gripping holes of its circumferencial direction evenly distributed, be equipped with fixture in the centre gripping hole, still be equipped with gland mechanism and ejection mechanism on the headspace sample injector body, ejection mechanism is located directly over the headspace sample injector sample mouth. The utility model discloses add ejection mechanism, only can solve and adopt a plurality of cylinders to press from both sides tightly and loosen the function of appearance bottle in the current headspace sample injector with a cylinder, simplified mechanical structure, reduced the cost. The capping mechanism is arranged, so that the bottle cap can be automatically pressed onto the sampling bottle.
Description
Technical Field
The utility model relates to a gaseous check out test set field especially relates to a semi-automatic headspace sample injector.
Background
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.
The utility model discloses a chinese utility model patent of application number 201820949456.6 discloses a take headspace sample injector of tray, this sample injector can very convenient appearance of advancing, but the fixture structure of this sample injector is complicated, and each sample injection bottle all needs a plurality of cylinders to remove the centre gripping, and equipment fortune dimension is with high costs, and after the sample of packing into in this sample injection bottle of sample injector, needs manually to cover the bottle lid tightly, and efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a semi-automatic headspace sample injector through the technical means who improves fixture, has solved complicated, the with high costs problem of current fixture structure. And the gland mechanism is additionally arranged, so that the technical problem that the cap of the sampling bottle needs to be manually capped by the existing headspace sampler is solved.
In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme: the utility model provides a semi-automatic headspace sample injector, includes headspace sample injector body, sample bin and feeding carousel, the feeding carousel with headspace sample injector body rotates to be connected, the sample bin is fixed in through the support feeding carousel top, sample bin bottom is equipped with the discharge gate, install the solenoid valve on the discharge gate, the feeding carousel is discoid structure and follows a plurality of centre gripping holes of its circumferencial direction evenly distributed, be equipped with fixture in the centre gripping hole, still be equipped with gland mechanism and ejection mechanism on the headspace sample injector body, ejection mechanism is located directly over the headspace sample injector sample mouth.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. adopt the utility model discloses well headspace sample injector structure, fixture need not to use the cylinder, nevertheless because fixture can't independently loosen the sample injection bottle and make it fall into headspace sample injector sample mouth, the utility model discloses add ejection mechanism, only can solve and adopt a plurality of cylinders to press from both sides tightly and loosen the function of sample injection bottle in the current headspace sample injector with a cylinder, simplified mechanical structure, reduced the cost.
2. The capping mechanism is arranged, so that the bottle cap can be automatically pressed onto the sampling bottle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention. (omitting capping mechanism)
Fig. 2 is a schematic structural diagram of the feeding turntable and the guide rail.
Fig. 3 is a schematic view of the installation position relationship between the cap storage cylinder and the feeding turntable.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the present invention provides a semi-automatic headspace sampler. The utility model provides a semi-automatic headspace sample injector, includes headspace sample injector body 1, sample storage case 2 and feeding carousel 5, feeding carousel 5 with headspace sample injector body 1 rotates to be connected, does not show on the drive structure chart of feeding carousel 5. In practical use, a cam divider or a servo motor can be installed in the headspace sampler body 1 as required to drive the feeding turntable 5 to rotate, or a ratchet structure can be adopted to realize the rotation of the feeding turntable 5 according to the feeding turntable 5 in the prior art, and the driving mode is well known to those skilled in the art and is not described herein.
The clamping mechanism comprises elastic pieces and vacuum suckers, the elastic pieces are evenly distributed along the circumference of the inner wall of the clamping hole, and the vacuum suckers are fixed at the tail ends of the elastic pieces. Wherein, the elastic element can be a spring or rubber.
The gland mechanism comprises a gland component arranged on the headspace sample injector body 1 and a pressing component positioned on one side of the gland component.
Put the lid subassembly including storing a lid section of thick bamboo 12 and being located store up the guide way 11 of a lid section of thick bamboo 12 below, store up a lid section of thick bamboo 12 lower extreme and be equipped with out the lid mouth, be equipped with closing plate 13 on the play lid mouth, closing plate 13 is controlled in order to open or close by a lid cylinder (not shown on the figure) the play lid mouth, guide way 11 downward sloping just extends to feeding carousel 5 top. The bottle caps in the cap storage cylinder 12 are stacked in the direction that the cap openings face downwards, the diameter R of the cap storage cylinder 12 is slightly larger than the diameter R of the bottle caps for stacking, the slightly larger diameter can be understood to be more than 0.8cm and more than R-R and more than 0.1cm, and a vertically extending opening can be formed in one side of the cap storage cylinder 12 for stacking. The cap cartridge 12 may be secured to the headspace sampler body 1 by a bracket or other structure. The closing plate 13 needs to be attached to the cap outlet, and 1 bottle cap in the cap storage cylinder 12 can freely fall onto the guide rail 11 each time the closing plate 13 is opened. The caps then slide down the guide rails 11 to the infeed carousel 5.
The push-down assembly comprises a push-down cylinder 4 and a buckling plug 6 driven by the push-down cylinder 4, and the buckling plug 6 is of a cylindrical structure with a top.
A protective shell 9 is arranged outside the feeding turntable 5, a limiting hole corresponding to the clamping hole is formed in the protective shell 9, and an arc-shaped limiting piece 10 is arranged on the limiting hole. The bottle cap falls into the feeding turntable 5 and then falls into the position right above the bottle mouth in the limiting hole. The arc-shaped limiting pieces 10 can generate reverse thrust on the downward sliding bottle cap, so that the downward sliding bottle cap can be just bounced into the limiting holes. Then the buckling plug 6 is pressed down to press the bottle cap on the bottle mouth. The buckling plug 6 is coaxial with the sample feeding bottle 8, and the inner wall of the buckling plug 6 can be of a structure with a thin upper part and a thick lower part, so that a circular truncated cone-shaped space with a small upper part and a big lower part is formed inside the buckling plug 6. The arrangement is to limit the bottle cap slightly deviating from the bottle mouth to be aligned with the mouth of the sample injection bottle 8.
The ejection mechanism is an ejection cylinder 3 with a piston head arranged downwards.
The utility model discloses an operation principle is in putting into the fixture of feeding carousel 5 with sample bottle 8, then open solenoid valve 7, to 8 feeding of one of them sample bottle, feeding carousel 5 rotates after the feeding finishes, next sample bottle 8 feeding, sample bottle 8 that previous feeding was accomplished is put the lid subassembly and is put the bottle lid, feeding carousel 5 rotates once more, first sample bottle 8 comes down pressure subassembly department, the subassembly compresses tightly the back with the bottle lid down, feeding carousel 5 rotates once more, first sample bottle 8 rotates ejection cylinder 3 below, ejection cylinder 3 pushes up sample bottle 8 and goes into headspace sample injector sample mouth, so relapse.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. The utility model provides a semi-automatic headspace sample injector, includes headspace sample injector body, sample storage case and feeding carousel, the feeding carousel with headspace sample injector body rotates to be connected, the sample storage case is fixed in through the support feeding carousel top, sample storage case bottom is equipped with the discharge gate, install solenoid valve, its characterized in that on the discharge gate: the feeding rotary table is of a disc-shaped structure and is uniformly distributed with a plurality of clamping holes along the circumferential direction of the feeding rotary table, the clamping holes are internally provided with clamping mechanisms, the headspace sample injector body is further provided with a gland mechanism and an ejection mechanism, and the ejection mechanism is positioned right above a sample port of the headspace sample injector.
2. The semi-automatic headspace sampler of claim 1, wherein: the clamping mechanism comprises elastic pieces and vacuum suckers, the elastic pieces are evenly distributed along the circumference of the inner wall of the clamping hole, and the vacuum suckers are fixed at the tail ends of the elastic pieces.
3. The semi-automatic headspace sampler of claim 1, wherein: the gland mechanism comprises a gland component arranged on the headspace sample injector body and a pressing component positioned on one side of the gland component.
4. The semi-automatic headspace sampler of claim 3, wherein: put the lid subassembly including storing up a lid section of thick bamboo and being located store up the guide way of a lid section of thick bamboo below, it is equipped with out the lid mouth to store up a lid section of thick bamboo lower extreme, be equipped with the closure plate on the play lid mouth, the closure plate is controlled in order to open or close by a play lid cylinder the play lid mouth, the guide way downward sloping just extends to feeding carousel top.
5. The semi-automatic headspace sampler of claim 3, wherein: the lower pressing assembly comprises a lower pressing cylinder and a buckling plug driven by the lower pressing cylinder, and the buckling plug is of a cylindrical structure with a top.
6. The semi-automatic headspace sampler of claim 4, wherein: the feeding turntable is provided with a protective shell outside, the protective shell is provided with a limiting hole corresponding to the clamping hole, and the limiting hole is provided with an arc-shaped limiting sheet.
7. The semi-automatic headspace sampler of claim 1, wherein: the ejection mechanism is an ejection cylinder with a piston head arranged downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088136.3U CN211043265U (en) | 2019-11-26 | 2019-11-26 | Semi-automatic headspace sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088136.3U CN211043265U (en) | 2019-11-26 | 2019-11-26 | Semi-automatic headspace sample injector |
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| Publication Number | Publication Date |
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| CN211043265U true CN211043265U (en) | 2020-07-17 |
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| CN201922088136.3U Active CN211043265U (en) | 2019-11-26 | 2019-11-26 | Semi-automatic headspace sample injector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235504A (en) * | 2021-12-28 | 2022-03-25 | 江苏华安科研仪器有限公司 | High-pressure coal gasification high-precision controllable sample injector |
| CN115184494A (en) * | 2022-07-08 | 2022-10-14 | 谱质分析检测技术(上海)有限公司 | Automatic headspace sample injector |
-
2019
- 2019-11-26 CN CN201922088136.3U patent/CN211043265U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235504A (en) * | 2021-12-28 | 2022-03-25 | 江苏华安科研仪器有限公司 | High-pressure coal gasification high-precision controllable sample injector |
| CN114235504B (en) * | 2021-12-28 | 2024-04-26 | 江苏华安科研仪器有限公司 | High-pressure coal gasification high-precision controllable sample injector |
| CN115184494A (en) * | 2022-07-08 | 2022-10-14 | 谱质分析检测技术(上海)有限公司 | Automatic headspace sample injector |
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